CN114458190A - Punching pliers device and using method thereof - Google Patents

Abstract

The present invention provides a punching pliers device, wherein the first pliers assembly includes a first bracket, a first driving mechanism and a first pliers mounted on the first bracket, the first driving mechanism is connected with the first pliers, The first clamp is driven to slide up and down; the second clamp assembly includes a second bracket, a second drive mechanism and a second clamp mounted on the second bracket, and the second drive mechanism is connected with the second clamp to drive the second clamp. The clamp slides up and down; the screwing mechanism is connected with the first bracket and the second bracket, drives the first clamp assembly to apply torque to the drilling tool in the first direction, and drives the second clamp assembly to the drilling tool in the first direction. A torque is applied in a second, opposite direction; the biasing mechanism is connected to the first bracket and/or the second bracket to drive the first and second clamps away from each other in the left-right direction. Only two clamps are needed to realize the make-up and break-down work, and the structure bears reasonable force. The present invention also provides a method of using the above punching pliers device.

Description

A kind of punching pliers device and using method thereof

technical field

The invention relates to the technical field of oil drilling machinery, in particular to a punching tong device and a method for using the same.

Background technique

With the improvement of the automation level of oil drilling operations, wellhead hydraulic oil tools with a high degree of automation, such as punching tongs, are more and more widely used.

At present, punching pliers using the principle of pipe wrenches are widely used because they make up for the shortcomings of short working life, complicated on-site maintenance, and shortening the service life of drilling tools that exist in the punching pliers on the market. However, the punching pliers device using the principle of pipe wrench still has deficiencies, specifically: the punching pliers device includes three pairs of upper, middle and lower pliers. The middle and lower pairs of tongs are used for oil exploitation. When operating in ultra-deep wells, double elevators are usually used to improve the operation efficiency. The space between the two can not accommodate the situation of the lower clamp (as shown in Figure 1), and cannot meet the requirements of the double elevator operation.

Therefore, a new type of punching tong device is urgently needed, which can solve the problem of inability to adapt to double elevator operation during drilling while inheriting many advantages of punching tongs based on the principle of pipe tongs.

SUMMARY OF THE INVENTION

(1) Technical problems to be solved

In view of the problems existing in the above technologies, the present invention solves it at least to a certain extent. Therefore, the first object of the present invention is to provide a punching pliers device, which realizes that only two clamps can be used to realize the make-up and break-down operations, and the structure is more reasonable in stress.

The second object of the present invention is to provide a method of using the above punching pliers device.

(2) Technical solutions

In order to achieve the above-mentioned purpose, the main technical scheme adopted in the present invention includes:

In one aspect, the present invention provides a punching pliers device, including a first clamp assembly, a second clamp assembly, a screwing mechanism and an offset mechanism; the first clamp assembly includes a first bracket, and is mounted on the first bracket The first drive mechanism and the first clamp are connected with the first clamp to drive the first clamp to slide up and down along the first bracket; the second clamp assembly includes the second bracket, and is installed on the second clamp. The second drive mechanism and the second clamp on the bracket, the second drive mechanism is connected with the second clamp, and drives the second clamp to slide up and down along the second bracket; the first bracket and the second bracket are arranged in sequence along the left and right directions; The screwing mechanism is respectively rotatably connected with the first bracket and the second bracket, and drives the first clamp assembly to apply torque to the drilling tool in a first direction, and drives the second clamp assembly to apply torque to the drilling tool in a second direction opposite to the first direction. The torque is applied in the direction; the offset mechanism is connected with the first bracket and/or the second bracket, and drives the first clamp assembly and/or the second clamp assembly to make the first clamp and the second clamp in the left-right direction away from each other; in the make-up operation, the first clamp is located above the second clamp; in the shackle operation, the first clamp is located under the second clamp.

Optionally, both the first clamp and the second clamp include: a clamp body, a clamp hook and a clamping cylinder; the clamp body includes a clamp head for clamping the drill interface and a clamp head for mounting on the bracket and connecting with the clamp. The pliers tail connected by the driving mechanism; the pliers hook is rotatably connected to the pliers body, and the clamping cylinder is respectively connected with the pliers hook and the pliers tail to drive the pliers hook to rotate relative to the pliers body to realize clamping and loosening; the inner side of the pliers head An arc-shaped jaw protruding toward the clamp hook is installed at the top, and two flat jaw teeth are installed on the inner side of the clamping end of the clamp hook, and the two flat jaw teeth are arranged to form an angle with each other; The drill joint forms three-point contact with the arc-shaped jaws and the two flat jaws, and the axis of the drill joint is located in the triangle formed by the three contact points.

Optionally, the first bracket is provided with a first guide post extending in the up-down direction, the clamp tail of the first clamp is provided with a first guide hole, the first guide post penetrates the first guide hole, and the first guide hole is connected to the first guide hole. The guide column is slidably connected up and down; the second bracket is provided with a second guide column extending in the up and down direction, a second guide hole is opened at the end of the second clamp, the second guide column penetrates the second guide hole, and the second guide hole is connected to the second guide hole. The second guide column is slidably connected up and down.

Optionally, both the first driving mechanism and the second driving mechanism include: a motor, a lead screw nut and a trapezoidal lead screw extending in the up-down direction; the motor is fixedly installed on the bracket, and the rotating shaft of the motor is fixed to the first end of the trapezoidal lead screw The lead screw nut is sleeved on the trapezoidal lead screw, and the lead screw nut is fixedly connected with the first clamp.

Optionally, the screwing mechanism includes a punching cylinder, the cylinder body of the punching cylinder is rotatably connected with the first bracket, and the cylinder rod of the punching cylinder is rotatably connected with the second bracket; during the screwing process, the first clamp assembly and the second bracket are rotatably connected. The two clamp assemblies are configured to act synchronously.

Optionally, the punching tong device further includes a first link assembly and a second link assembly, the first end of the first link assembly is hinged with the first bracket, and the second end of the first link assembly is used for connecting with the iron. The installation frame of the driller is hinged, the first end of the second link assembly is hinged with the second bracket, and the second end of the second link assembly is used for hinged connection with the installation frame of the iron driller.

Optionally, the offset mechanism includes a first reset cylinder and/or a second reset cylinder, the first end of the first reset cylinder is connected to the first bracket, and the second end of the first reset cylinder is used for rotating with the iron driller mounting frame Connection, the first end of the second reset cylinder is connected with the second bracket, and the second end of the second reset cylinder is used for rotating connection with the iron drill installation frame; the lever of the first reset cylinder extends to drive the first clamp assembly to the The left deviation makes the first clamp and the second clamp move away from each other in the left-right direction; the lever of the first reset cylinder is retracted to drive the first clamp assembly to reset; the lever of the second reset cylinder is extended to drive the second clamp The clamp assembly deviates to the right, so that the first clamp and the second clamp are away from each other in the left-right direction; the lever of the second reset cylinder is retracted to drive the second clamp assembly to reset; during the screwing process of the punching clamp device, the first clamp Both a reset cylinder and a second reset cylinder are configured to act accordingly.

Optionally, the punching tong device further includes a first link assembly and a second link assembly, the first end of the first link assembly is hinged with the first bracket, and the second end of the first link assembly is used for connecting with the iron. The installation frame of the driller is hinged, the first end of the second link assembly is hinged with the second bracket, and the second end of the second link assembly is used for hinged connection with the installation frame of the iron driller; the first end of the first reset cylinder passes through The first link assembly is connected with the first bracket, and the first end of the second reset cylinder is connected with the second bracket through the second link assembly.

Optionally, the upper part of the first bracket is provided with a first limit switch, the lower part of the first bracket is provided with a second limit switch; the upper part of the second bracket is provided with a third limit switch, and the lower part of the second bracket is provided with a second limit switch. The fourth limit switch; during the make-up operation, the first clamp is in contact with the first limit switch, and the second clamp is in contact with the fourth limit switch; during the shattering operation, the first clamp is in contact with the second limit switch. The position switch is in contact, and the second clamp is in contact with the third limit switch.

On the other hand, the present invention provides a method for using a punching pliers device, comprising the following steps:

S1. The conversion operation from the make-up state to the unbuckling state: the jaws of the first clamp and the jaws of the second clamp are both clamped, and the first clamp and the second clamp are driven in the left-right direction by the offset mechanism move away from each other until the first clamp and the second clamp no longer overlap, and then the first clamp and the second clamp are driven by the first drive mechanism and the second drive mechanism until the first clamp is located in the second clamp Below, the offset mechanism is reset, the jaws of the first clamp and the jaws of the second clamp are both opened;

S2. The operation of switching from the shackle state to the buckling state: the jaws of the first clamp and the jaws of the second clamp are both clamped, and the first clamp and the second clamp are driven in the left and right direction by the offset mechanism Move away from each other until the first clamp and the second clamp no longer overlap, and then the first clamp and the second clamp are driven by the first drive mechanism and the second drive mechanism until the first clamp is located at the position of the second clamp. Above, the offset mechanism is reset, and both the jaws of the first and second jaws are open.

(3) Beneficial effects

The beneficial effects of the present invention are:

1. The punching clamp device proposed by the present invention has only two clamps for clamping the interface of the drilling tool, and has the conversion function between the working state of making up and the working state of shattering, realizing that only two clamps can be used. The make-up and break-out operations are realized, and the structural force is more reasonable.

2. The punching clamp device proposed by the present invention can inherit the advantages of reasonable stress structure, simple structure, reliable and durable, convenient on-site maintenance, etc. With the conversion function between the two clamps, the make-up operation and the unfasten operation can be realized with only two clamps, which overcomes the problem that the existing three-clamp mechanism using the principle of pipe clamps cannot perform double-elevator operations.

Description of drawings

The invention is described with the aid of the following figures:

Fig. 1 is the schematic diagram of the situation that the three-clamp mechanism in the background technology of the present invention is not suitable for the operation of double elevators;

Fig. 2 is the three-dimensional structural schematic diagram of the punching pliers device in Embodiment 1 of the present invention;

3 is a schematic top view of the punching pliers device in Embodiment 1 of the present invention;

4 is a schematic three-dimensional structure diagram of the second clamp assembly in Embodiment 1 of the present invention;

5 is a schematic cross-sectional view of the second clamp assembly in Embodiment 1 of the present invention;

6 is a schematic side view of the second clamp assembly in the working state of the upper buckle in Embodiment 1 of the present invention;

7 is a schematic side view of the second clamp assembly in the shackle working state in Embodiment 1 of the present invention;

8 is a schematic top view of the punching pliers in the first embodiment of the present invention in the process of transitioning from a make-up state to a shackle state;

FIG. 9 is a schematic top view of the punching pliers device in the process of transition from the make-up state to the unbuckle state according to the second embodiment of the present invention.

[Description of reference numerals]

11: The first bracket; 111: The first guide column; 112: The self-lubricating copper sleeve; 114: The first supporting top plate; 116: The first punching cylinder mounting seat;

12: the first clamp; 121: the clamp head; 122: the clamp tail; 123: the clamp hook; 124: the clamping cylinder; 125: the first pressure plate; 126: the second pressure plate; flat pliers;

131: motor; 132: screw nut; 133: lead screw;

14: the second bracket; 141: the second guide column; 142: the second support plate; 143: the second support top plate; 144: the second support bottom plate; 145: the second punching cylinder mounting seat;

15: the second clamp;

21: punching cylinder;

31: the first connecting rod assembly; 32: the second connecting rod assembly;

41: reset cylinder;

51: The first limit switch; 52: The second limit switch;

61: the first telescopic cover; 62: the second telescopic cover;

71: the first reset cylinder; 72: the second reset cylinder.

Detailed ways

In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments. The orientation nouns such as "up", "down", "front", "rear", "left", "right" mentioned in this document are with reference to the orientation of FIG. The axes of the shackles are parallel to each other.

Example 1

As shown in FIG. 2 to FIG. 8 , the present invention provides a punch clamp device, which includes a first clamp assembly, a second clamp assembly, a screwing mechanism and an offset mechanism.

Wherein, as shown in FIG. 2 , the first clamp assembly includes a first bracket 11 , a first drive mechanism and a first clamp 12 mounted on the first bracket 11 , and the first drive mechanism is connected to the first clamp 12 , drive the first clamp 12 to slide up and down along the first bracket 11; the second clamp assembly includes a second bracket 14, and a second drive mechanism and a second clamp 15 mounted on the second bracket 14, the second drive mechanism Connected with the second clamp 15, the second clamp 15 is driven to slide up and down along the second bracket 14; the first bracket 11 and the second bracket 14 are arranged in sequence along the left-right direction. The first clamp 12 is used to clamp the interface of one drilling tool to be made and/or unbuckled, and the second clamp 15 is used to clamp the interface of another drill to be made and/or unbuckled.

The screwing mechanism is respectively connected with the first bracket 11 and the second bracket 14 in rotation, drives the first clamp 12 to apply torque to the drilling tool in the first direction, and drives the second clamp assembly to apply torque to the drilling tool in the first direction. Torque is applied in a second, opposite direction.

Wherein, the offset mechanism is connected with the first bracket 11 and/or the second bracket 14, and drives the first clamp assembly and/or the second clamp assembly, so that the first clamp 12 and the second clamp 15 are in the left-right direction away from each other.

The punching clamp device thus arranged can achieve the following work in sequence:

1. Fastening operation, specifically, the first clamp 12 is located above the second clamp 15, the jaws of the first clamp 12 clamp the interface of the upper drilling tool, and the jaws of the second clamp 15 clamp the lower The interface of the drilling tool, the screwing mechanism works, drives the first clamp 12 to apply torque to the upper drilling tool in the first direction, and drives the second clamp 15 to the lower drilling tool in a second direction opposite to the first direction. When torque is applied, the fastening is completed, the jaws of the first clamp 12 and the jaws of the second clamp 15 are loosened, and the screwing mechanism is reset.

2. Transition from the make-up state to the shackle state, specifically, the jaws of the first clamp 12 are closed, the jaws of the second clamp 15 are clamped, and the offset mechanism works to drive the first clamp 12 and the second clamp The clamps 15 move away from each other in the left-right direction until the first clamp 12 and the second clamp 15 no longer overlap, and the first drive mechanism and the second drive mechanism work to drive the first clamp 12 to slide down along the first bracket 11 , drive the second clamp 15 to slide up along the second bracket 14 until the first clamp 12 is located below the second clamp 15, the offset mechanism is reset, the jaws of the first clamp 12 and the second clamp 15 The jaws are loosened to complete the conversion.

3. Shackle operation, specifically, the jaws of the second clamp 15 clamp the interface of the upper drill tool, the jaws of the first clamp 12 clamp the interface of the lower drill tool, and the screwing mechanism works to drive the second clamp The tong 15 applies torque to the upper drilling tool in the second direction opposite to the first direction, and drives the first tong 12 to apply torque to the lower drilling tool in the first direction to complete the shattering. The jaws and the jaws of the second jaw 15 are loosened, and the screwing mechanism is reset.

4. The shackle state is switched to the upward buckling state. Specifically, the jaws of the first clamp 12 are clamped, the jaws of the second clamp 15 are clamped, and the offset mechanism works to drive the first clamp 12 and the second clamp. The tongs 15 move away from each other in the left-right direction until the first tongs 12 and the second tongs 15 no longer overlap. The second clamp 15 slides down along the second bracket 14 until the first clamp 12 is located above the second clamp 15, the offset mechanism is reset, the jaws of the first clamp 12 and the jaws of the second clamp 15 The mouths are all released to complete the conversion.

It can be seen that the punching clamp device proposed by the present invention has only two clamps for clamping the interface of the drilling tool, and has the conversion function between the working state of make-up and the working state of unloading, and realizes that only two clamps can be used. The make-up and break-out operations are realized, and the structural force is more reasonable.

Preferably, as shown in FIGS. 2 to 4 , both the first clamp 12 and the second clamp 15 include: a clamp body, a clamp hook 123 and a clamping cylinder 124 . Wherein, the clamp body includes a clamp head 121 and a clamp tail 122. The clamp tail 122 is used to be mounted on the brackets (ie the first bracket 11 and the second bracket 14) and communicate with the driving mechanism (ie the first driving mechanism and the second driving mechanism). ) connection, the clamp head 121 is used to clamp the drill interface; the clamp hook 123 is rotatably connected to the clamp body; the clamping cylinder 124 is arranged between the clamp hook 123 and the clamp tail 122, and is respectively connected with the clamp hook 123 and the clamp tail 122 To connect, drive the tongs hook 123 to rotate relative to the tongs body for clamping and releasing the drill interface. The first clamp 12 and the second clamp 15 thus arranged are suitable for use in the punching clamp device proposed by the present invention, so as to stabilize the work.

Further, as shown in FIG. 4 , in this embodiment, the clamp body further includes a first pressure plate 125 and a second pressure plate 126 , and the top of the clamp head 121 is fixedly connected to the top of the clamp tail 122 through the first pressure plate 125 . The bottom of the head 121 is fixedly connected to the bottom of the pliers tail 122 through the second pressing plate 126, and a through hole is formed between the pliers head 121 and the pliers tail 122, and between the first pressing plate 125 and the second pressing plate 126; the pliers hook 123 penetrates through A through hole, the forceps hook 123 is rotatably connected with the first pressing plate 125 and/or the second pressing plate 126 in the through hole.

Further, as shown in FIG. 3 , in this embodiment, the clamping cylinder 124 is disposed between the clamp hook 123 and the clamp tail 122 , the cylinder body of the clamping cylinder 124 is rotatably connected with the clamp tail 122 , and the clamping cylinder 124 is rotatably connected to the clamp tail 122 . The cylinder rod is rotatably connected with the clamp hook 123 .

Further preferably, the inner side of the clamping end of the forceps head 121 (that is, the side of the clamping end of the forceps head 121 facing the forceps hook 123 ) is installed with an arc-shaped jaw 127 protruding toward the forceps hook 123 ; Two flat jaws 128 are mounted on the inner side (ie, the side of the gripping end of the forceps hook 123 facing the forceps head 121 ), and the two flat jaws 128 are arranged at an angle to each other. In this way, when the clamp clamps the drill interface, the drill joint forms three-point contact with the arc-shaped jaws 127 and the two flat jaws 128, and the axis of the drill joint is located in the triangle formed by the three contact points. This allows the clamp to act like a pipe wrench. It can be seen that the punching clamp device proposed by the present invention can inherit the advantages of reasonable force structure, simple structure, reliable and durable, convenient on-site maintenance, etc. With the conversion function between the two clamps, the make-up operation and the unfasten operation can be realized with only two clamps, which overcomes the problem that the existing three-clamp mechanism using the principle of pipe clamps cannot perform double-elevator operations.

Further preferably, when the punch clamp device clamps the drilling tool, the inner side of the jaw 123 of the first jaw 12 and the inner side of the jaw 123 of the second jaw 15 are arranged to face each other. In this way, it is convenient for the first clamp 12 and the second clamp 15 to clamp the drill interface.

Preferably, as shown in FIG. 2 , FIG. 4 , FIG. 5 and FIG. 6 , the first bracket 11 is provided with a first guide column 111 extending in the up-down direction, and a first guide hole is formed in the clamp tail 122 of the first clamp 12 , the first guide post 111 penetrates the first guide hole, and the first guide hole is connected with the first guide post 111 to slide up and down, so that the first clamp 12 can slide up and down along the first guide post 111; The second guide column 141 extending in the up-down direction, the second guide hole is defined in the plier tail 122 of the second clamp 15, the second guide column 141 penetrates the second guide hole, and the second guide hole is slidably connected with the second guide column 141 up and down , so that the second clamp 15 can slide up and down along the second guide column 141 . In this way, the first clamp 12 and the second clamp 15 are guided to slide up and down through the cooperation of the guide post and the guide hole, which is beneficial to the stable operation of the first drive mechanism and the second drive mechanism. Further, in this embodiment, the first guide hole is sleeved on the first guide column 111 through the self-lubricating copper sleeve 112 , and the second guide hole is sleeved on the second guide column 141 through the self-lubricating copper sleeve 112 .

Further preferably, in this embodiment, the first bracket 11 has two first guide columns 111 and two first guide holes, and the two first guide holes are located on the left side of the clamp tail 122 of the first clamp 12 respectively. On the side part and the right part, the two first guide posts 111 respectively pass through the two first guide holes; similarly, the second bracket 14 has two second guide posts 141 and two second guide holes. The two second guide holes are respectively located on the left side and the right side of the jaw tail 122 of the second clamp 15 , and the two second guide posts 141 respectively pass through the two second guide holes. In this way, the sliding stability of the first clamp 12 along the first bracket 11 and the sliding stability of the second clamp 15 along the second bracket 14 are further enhanced.

Preferably, both the first driving mechanism and the second driving mechanism include: a motor 131, a lead screw nut 132 and a trapezoidal lead screw 133 extending in the up-down direction; the motor 131 is fixedly installed on the brackets (the first bracket 11 and the second bracket 14) The rotating shaft of the motor 131 is fixedly connected to the first end of the trapezoidal lead screw 133 , the lead screw nut 132 is sleeved on the trapezoidal lead screw 133 , and the lead screw nut 132 is fixedly connected to the first clamp 12 . The first driving mechanism and the second driving mechanism thus arranged can respectively stably drive the first clamp 12 and the second clamp 15 to slide up and down.

Specifically, as shown in FIG. 5 , in this embodiment, the first end of the lead screw 133 is rotatably mounted on the bracket through the first tapered roller bearing, and the second end of the lead screw 133 is rotatably mounted on the bracket through the second tapered roller The bearing is rotatably mounted on the bracket, the motor 131 is a hydraulic motor 131 , and the rotating shaft of the hydraulic motor 131 is connected to the first end of the trapezoidal lead screw 133 through a flat key. Of course, if the motor 131 is an electric motor 131, or the rotating shaft of the motor 131 is connected to the first end of the lead screw 133 through a coupling, a similar effect can also be achieved.

Further, in this embodiment, a first driving hole is formed on the plier tail 122 of the first clamp 12, and the lead screw nut 132 of the first driving mechanism extends into the first driving hole and is fixedly connected with the first driving hole; The pincer tail 122 of the second clamp 15 defines a second driving hole, and the lead screw nut 132 of the second driving mechanism extends into the second driving hole and is fixedly connected with the second driving hole. Further preferably, in this embodiment, the first driving hole is located between the two first guide holes, and the second driving hole is located between the two second guide holes.

Preferably, the screwing mechanism is a punching cylinder 21 , the cylinder body of the punching cylinder 21 is rotatably connected with the first bracket 11 , and the cylinder rod of the punching cylinder 21 is rotatably connected with the second bracket 14 . In this way, while realizing the screwing function, the structure is simple.

Further, in this embodiment, the cylinder body of the punching cylinder 21 is rotatably connected to the first bracket 11 through a shaft sleeve, and the cylinder rod of the punching cylinder 21 is rotatably connected to the second bracket 14 through a pin shaft.

Further preferably, during the screwing process, the first clamp assembly and the second clamp assembly are configured to act synchronously.

Preferably, as shown in FIG. 2 , FIG. 3 and FIG. 8 , the punching pliers device further includes a connecting mechanism, and the connecting mechanism includes a first link assembly 31 and a second link assembly 32 . The end is hinged with the first bracket 11, the second end of the first link assembly 31 is used for hinged connection with the installation frame of the iron driller, the first end of the second link assembly 32 is hinged with the second bracket 14, the second link The second end of the assembly 32 is used to articulate with the iron driller's mounting frame. By setting the first connecting rod assembly 31 and the second connecting rod assembly 32 as the connection mechanism between the punching pliers device and the iron driller, the complex motion requirements of the punching pliers device can be met. Wherein, the connecting rod assembly is formed by two or more connecting rods being hinged head to tail in sequence.

Further preferably, the connection mechanism includes two sets of first link assemblies 31 and two sets of second link assemblies 32; The lower part of 11 is hinged, and the second ends of the two sets of first link assemblies 31 are used for hinged connection with the installation frame of the iron driller; the first ends of the two sets of second link assemblies 32 are respectively connected with the upper part of the second bracket 14 Hinged with the lower part of the second bracket 14 , the second ends of the two sets of second link assemblies 32 are used for hinged connection with the mounting frame of the iron driller. In this way, the connection between the punching tong device and the iron driller is enhanced.

Further preferably, in this embodiment, the first connecting rod assembly 31 and the second connecting rod assembly 32 are both formed by two connecting rods being hinged end to end in sequence.

Preferably, the offset mechanism includes a reset cylinder 41, the first end of the reset cylinder 41 is connected to the first bracket 11, and the second end of the reset cylinder 41 is used for rotational connection with the iron driller installation frame; the lever of the reset cylinder 41 extends, Drive the first clamp assembly to deviate to the left, so that the first clamp 12 and the second clamp 15 move away from each other in the left-right direction, the lever of the reset cylinder 41 is retracted, and the first clamp assembly is driven to reset; During the screwing process, the reset cylinder 41 is configured to act accordingly.

Further preferably, as shown in FIG. 8 , the first end of the reset cylinder 41 is connected to the first bracket 11 through the first connecting rod assembly 31 . Specifically, the first end of the reset cylinder 41 is inside the first connecting rod assembly 31 . The hinge positions (ie other hinge positions in the first link assembly 31 except the head and tail hinge positions) are hinged with the first link assembly 31 . Further preferably, the first end of the reset cylinder 41 is connected to the first bracket 11 through the first link assembly 31 located on the upper part of the first bracket 11 .

Preferably, the upper part of the first bracket 11 is provided with a first limit switch 51, the lower part of the first bracket 11 is provided with a second limit switch 52; the upper part of the second bracket 14 is provided with a third limit switch, and the second bracket 14 is provided with a third limit switch. The lower part of 14 is provided with a fourth limit switch; during the make-up operation, the first clamp 12 is in contact with the first limit switch 51, and the second clamp 15 is in contact with the fourth limit switch; during the unfastening operation, The first clamp 12 is in contact with the second limit switch 52 , and the second clamp 15 is in contact with the third limit switch, as shown in FIGS. 6 and 7 . In this way, the up and down sliding positions of the first clamp 12 and the second clamp 15 can be accurately controlled, and the mutual conversion between the make-up state and the break-up state can be completed.

Preferably, the first bracket 11 includes a first support plate, the top end of the first support plate has a first support top plate 114 bent forward, the bottom end of the first support plate has a first support bottom plate bent forward, The rear side of a support plate is provided with the first punching cylinder 21 mounting seat 116; the first guide column 111 is disposed between the first support top plate 114 and the first support bottom plate, and the motor 131 in the first drive mechanism is mounted on the first support plate 114. On a supporting top plate 114, two ends of the trapezoidal screw 133 are respectively mounted on the first supporting top plate 114 and the first supporting bottom plate. The second bracket 14 includes a second support plate 142, the top end of the second support plate 142 has a second support top plate 143 bent forward, and the bottom end of the second support plate 142 has a second support bottom plate 144 bent forward, The rear side of the second support plate 142 is provided with the second punch cylinder 21 mounting seat 145; the second guide column 141 is disposed between the second support top plate 143 and the second support bottom plate 144, and the motor 131 in the second drive mechanism Installed on the second support top plate 143 , the two ends of the trapezoidal lead screw 133 are respectively installed on the second support top plate 143 and the second support bottom plate 144 .

Further preferably, the first ends of the two groups of first link assemblies 31 are hinged with the first support top plate 114 and the first support bottom plate respectively, and the first ends of the two groups of second link assemblies 32 are respectively connected with the second support top plate 143 and the first support bottom plate. The second support base plate 144 is hinged.

Further preferably, a first limit switch 51 is provided at the bottom front end of the first supporting top plate 114 , a second limit switch 52 is provided at the top front end of the first supporting bottom plate, and a third limit switch 52 is provided at the bottom front end of the second supporting top plate 143 . A position switch, a fourth limit switch is disposed at the top front end of the second support bottom plate 144 .

Preferably, the punching pliers device further includes a first telescopic cover 61 and a second telescopic cover 62, and both the first telescopic cover 61 and the second telescopic cover 62 are cylindrical. The first end of the first telescopic cover 61 is connected to the bottom of the first support top plate 114, the second end of the first telescopic cover 61 is connected to the top of the first support bottom plate, the first guide column 111 and the trapezoidal wire of the first drive mechanism The rods 133 are all accommodated in the first telescopic cover 61, and the pincer tail 122 of the first clamp 12 passes through the first telescopic cover 61 and is connected to the first guide column 111 and the trapezoidal lead screw 133 of the first driving mechanism; the first clamp 12 moves upward, the first telescopic cover 61 between the first clamp 12 and the first support top plate 114 is compressed, and the first telescopic cover 61 between the first clamp 12 and the first support bottom plate is stretched; the first clamp 12 moves downward, the first telescopic cover 61 between the first clamp 12 and the first support top plate 114 is stretched, and the first telescopic cover 61 between the first clamp 12 and the first support bottom plate is compressed. The first end of the second telescopic cover 62 is connected to the bottom of the second supporting top plate 143 , the second end of the second telescopic cover 62 is connected to the top of the second supporting bottom plate 144 , the trapezoidal shape of the second guide column 141 and the second driving mechanism The lead screws 133 are all accommodated in the second telescopic cover 62, and the pincer tail 122 of the second clamp 15 passes through the second telescopic cover 62 and is connected to the second guide column 141 and the trapezoidal lead screw 133 of the second driving mechanism; the second clamp The clamp 15 moves upward, the second telescopic cover 62 between the second clamp 15 and the second support top plate 143 is compressed, and the second telescopic cover 62 between the second clamp 15 and the second support bottom plate 144 is stretched; The clamp 15 moves downward, the second telescopic cover 62 between the second clamp 15 and the second support top plate 143 is stretched, and the second telescopic cover 62 between the second clamp 15 and the second support bottom plate 144 is compressed. In this way, during the working process of the punching tong device, the driving mechanism and the tong tail 122 are protected from the pollution of the external soil and sand.

Example 2

The main difference between this embodiment and Embodiment 1 is:

As shown in FIG. 9 , the offset mechanism includes a first reset cylinder 71 and a second reset cylinder 72 , the first end of the first reset cylinder 71 is connected to the first bracket 11 , and the second end of the first reset cylinder 71 is used for connecting with the iron The driller installation frame is rotatably connected, the first end of the second reset cylinder 72 is connected with the second bracket 14, and the second end of the second reset cylinder 72 is used for rotational connection with the iron driller installation frame; the lever of the first reset cylinder 71 is extended. out, the first clamp assembly is driven to deviate to the left, so that the first clamp 12 and the second clamp 15 are separated from each other in the left-right direction, the lever of the first reset cylinder 71 is retracted, and the first clamp assembly is driven to reset; The levers of the second reset cylinders 72 extend to drive the second clamp assembly to deviate to the right, so that the first clamp 12 and the second clamp 15 move away from each other in the left-right direction, and the lever of the second reset cylinder 72 retracts, driving the Two clamp assemblies reset. During the screwing process of the punching pliers device, both the first reset cylinder 71 and the second reset cylinder 72 are configured to act accordingly.

Further preferably, the first end of the first reset cylinder 71 is connected to the first bracket 11 through the first link assembly 31 , specifically, the first end of the first reset cylinder 71 is at the inner hinge position of the first link assembly 31 (ie other hinge positions in the first link assembly 31 except the head and tail hinge positions) are hinged with the first link assembly 31 . The first end of the second reset cylinder 72 is connected to the second bracket 14 through the second link assembly 32 . Specifically, the first end of the second reset cylinder 72 is at the inner hinge position of the second link assembly 32 (ie, the first Other hinge positions in the link assembly 31 except the head and tail hinge positions) are hinged with the second link assembly 32 .

The rest are the same as those in Embodiment 1, and will not be repeated here.

Example 3

The present embodiment is the use method of the punching pliers device in the embodiment 1 or the embodiment 2, comprising the following steps:

S1. Fastening operation: in the initial state, the first clamp is located above the second clamp; the jaws of the first clamp clamp the interface of the upper drill tool, and the jaws of the second clamp clamp the lower drill tool The first clamp and the second clamp are driven by the screwing mechanism until the buckle is completed, the jaws of the first clamp and the jaws of the second clamp are loosened, and the screwing mechanism is reset.

S2. The conversion operation from the make-up state to the unbuckling state: the jaws of the first clamp and the jaws of the second clamp are both clamped, and the first clamp and the second clamp are driven in the left-right direction by the offset mechanism move away from each other until the first clamp and the second clamp no longer overlap, and then the first clamp and the second clamp are driven by the first drive mechanism and the second drive mechanism until the first clamp is located in the second clamp Below, the offset mechanism is reset, and both the jaws of the first clamp and the jaws of the second clamp are opened.

S3. Shackle operation: make the jaws of the second clamp clamp the interface of the upper drill tool, the jaws of the first clamp clamp the interface of the lower drill tool, and drive the second clamp and the first clamp through the screwing mechanism clamp until the shackle is completed, the jaws of the first clamp and the jaws of the second clamp are loosened, and the screwing mechanism is reset.

S4. The operation of switching from the shackle state to the upward buckling state: the jaws of the first clamp and the jaws of the second clamp are both clamped, and the first clamp and the second clamp are driven in the left-right direction by the offset mechanism Move away from each other until the first clamp and the second clamp no longer overlap, and then the first clamp and the second clamp are driven by the first drive mechanism and the second drive mechanism until the first clamp is located at the position of the second clamp. Above, the offset mechanism is reset, and both the jaws of the first and second jaws are open.

It should be understood that the above description of the specific embodiments of the present invention is only to illustrate the technical route and characteristics of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but the present invention Not limited to the specific embodiments described above. Any changes or modifications made within the scope of the claims of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. A punching pliers device, characterized in that, including a first clamp assembly, a second clamp assembly, a screwing mechanism and an offset mechanism; The first clamp assembly includes a first bracket (11), a first drive mechanism and a first clamp (12) mounted on the first bracket (11), and the first drive mechanism is connected with the first clamp (12) , drive the first clamp (12) to slide up and down along the first bracket (11); the second clamp assembly includes a second bracket (14), and a second drive mechanism and a second drive mechanism mounted on the second bracket (14) A clamp (15), the second drive mechanism is connected with the second clamp (15), and drives the second clamp (15) to slide up and down along the second bracket (14); the first bracket (11) and the second bracket (14) ) are arranged in sequence along the left and right directions; The screwing mechanism is respectively rotatably connected with the first bracket (11) and the second bracket (14), drives the first clamp assembly to apply torque in the first direction, and drives the second clamp assembly in the first direction opposite to the first direction. Apply torque in two directions; The deflection mechanism is connected with the first bracket (11) and/or the second bracket (14), and drives the first clamp assembly and/or the second clamp assembly, so that the first clamp (12) and the second clamp ( 15) away from each other in the left and right directions; During the make-up operation, the first clamp (12) is located above the second clamp (15); during the buckling operation, the first clamp (12) is located below the second clamp (15). 2. The punching pliers device according to claim 1, characterized in that, The first clamp (12) and the second clamp (15) both comprise: a clamp body, a clamp hook (123) and a clamping cylinder (124); The clamp body includes a clamp head (121) for clamping the drill interface and a clamp tail (122) for being mounted on the bracket and connected with the driving mechanism; the clamp hook (123) is rotatably connected to the clamp body for clamping The cylinder (124) is respectively connected with the clamp hook (123) and the clamp tail (122) to drive the clamp hook (123) to rotate relative to the clamp body to realize clamping and loosening; An arc-shaped jaw (127) protruding toward the jaw (123) is installed on the inner side of the forceps head (121), and two flat jaws (128) are installed on the inner side of the clamping end of the jaw (123). the flat jaws (128) are arranged at an angle to each other; When clamping the drill joint, the drill joint forms three-point contact with the arc-shaped jaws (127) and the two flat jaws (128), and the axis of the drill joint is located in the triangle formed by the three contact points. 3. The punching pliers device according to claim 1, characterized in that, The first bracket (11) is provided with a first guide post (111) extending in the up-down direction, a first guide hole is formed in the pincer tail (122) of the first clamp (12), and the first guide post (111) penetrates the first guide post (111). a guide hole, the first guide hole is slidably connected with the first guide post (111) up and down; The second bracket (14) is provided with a second guide post (141) extending in the up-down direction, the pincer tail (122) of the second clamp (15) is provided with a second guide hole, and the second guide post (141) penetrates the Two guide holes, the second guide hole is connected with the second guide column (141) in a sliding manner up and down. 4. The punching pliers device according to claim 1, characterized in that, Both the first drive mechanism and the second drive mechanism include: a motor (131), a lead screw nut (132) and a trapezoidal lead screw (133) extending in the up-down direction; The motor (131) is fixedly mounted on the bracket, the rotating shaft of the motor (131) is fixedly connected with the first end of the trapezoidal lead screw (133), the lead screw nut (132) is sleeved on the trapezoidal lead screw (133), and the lead screw nut (132) is fixedly connected with the first clamp (12). 5. The punching pliers device according to claim 1, characterized in that, The screwing mechanism comprises a punching cylinder (21), the cylinder body of the punching cylinder (21) is rotatably connected with the first bracket (11), and the cylinder rod of the punching cylinder (21) is rotatably connected with the second bracket (14); During screwing, the first clamp assembly and the second clamp assembly are configured to act synchronously. 6. The punching pliers device according to claim 1, characterized in that, Also includes a first link assembly (31) and a second link assembly (32), the first end of the first link assembly (31) is hinged with the first bracket (11), the first link assembly (31) The second end is used for hinged connection with the installation frame of the iron driller, the first end of the second link assembly (32) is hinged with the second bracket (14), and the second end of the second link assembly (32) is used for hinged connection with the second bracket (14). The mounting frame of the iron driller is hinged. 7. The punching pliers device according to claim 1, characterized in that, The offset mechanism includes a first reset cylinder (71) and/or a second reset cylinder (72), the first end of the first reset cylinder (71) is connected to the first bracket (11), and the first reset cylinder (71) has a first end connected to the first bracket (11). The two ends are used for rotational connection with the iron driller's installation frame, the first end of the second reset cylinder (72) is connected with the second bracket (14), and the second end of the second reset cylinder (72) is used for installation with the iron driller Frame rotation connection; The lever of the first reset cylinder (71) extends to drive the first clamp assembly to deviate to the left, so that the first clamp (12) and the second clamp (15) move away from each other in the left-right direction; the first reset cylinder ( The lever of 71) is retracted to drive the first clamp assembly to reset; the lever of the second reset cylinder (72) is extended to drive the second clamp assembly to deviate to the right, so that the first clamp (12) and the second clamp (15) moving away from each other in the left-right direction; the lever of the second reset cylinder (72) is retracted to drive the second clamp assembly to reset; During the screwing process of the punching pliers device, both the first reset cylinder (71) and the second reset cylinder (72) are configured to act accordingly. 8. The punching pliers device according to claim 7, characterized in that, Also includes a first link assembly (31) and a second link assembly (32), the first end of the first link assembly (31) is hinged with the first bracket (11), the first link assembly (31) The second end is used for hinged connection with the installation frame of the iron driller, the first end of the second link assembly (32) is hinged with the second bracket (14), and the second end of the second link assembly (32) is used for hinged connection with the second bracket (14). The mounting frame of the iron driller is hinged; The first end of the first reset cylinder (71) is connected to the first bracket (11) through the first connecting rod assembly (31), and the first end of the second reset cylinder (72) is connected to the second support (11) through the second connecting rod assembly (32). The bracket (14) is connected. 9. The punching pliers device according to claim 1, characterized in that, The upper part of the first bracket (11) is provided with a first limit switch (51), the lower part of the first bracket (11) is provided with a second limit switch (52); the upper part of the second bracket (14) is provided with a third limit switch (52) A limit switch, the lower part of the second bracket (14) is provided with a fourth limit switch; During the make-up operation, the first clamp (12) is in contact with the first limit switch (51), and the second clamp (15) is in contact with the fourth limit switch; during the unfastening operation, the first clamp ( 12) is in contact with the second limit switch (52), and the second clamp (15) is in contact with the third limit switch. 10. A method of using a punching pliers device, characterized in that it comprises the following steps: S1. The conversion operation from the make-up state to the unbuckling state: the jaws of the first clamp and the jaws of the second clamp are both clamped, and the first clamp and the second clamp are driven in the left-right direction by the offset mechanism move away from each other until the first clamp and the second clamp no longer overlap, and then the first clamp and the second clamp are driven by the first drive mechanism and the second drive mechanism until the first clamp is located in the second clamp Below, the offset mechanism is reset, the jaws of the first clamp and the jaws of the second clamp are both opened; S2. The operation of switching from the shackle state to the buckling state: the jaws of the first clamp and the jaws of the second clamp are both clamped, and the first clamp and the second clamp are driven in the left and right direction by the offset mechanism Move away from each other until the first clamp and the second clamp no longer overlap, and then the first clamp and the second clamp are driven by the first drive mechanism and the second drive mechanism until the first clamp is located at the position of the second clamp. Above, the offset mechanism is reset, and both the jaws of the first and second jaws are open.

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