Automatic lifting hook device of car coupler lifting rod
Technical Field
The invention relates to the technical field of railway vehicle coupling, in particular to an automatic lifting device for a lifting rod of a car coupler.
Background
The car coupler refers to the hooks at two ends of a train wagon or a locomotive and has the functions of connection, traction and buffering. At present, railway trains are connected by a coupler, and a shunting driver usually sends out a coupling signal and pushes a front train to be in butt joint with a rear train.
Before two car couplers are coupled, a shunting worker arrives at a coupling place to lift a rotary arm of a hook lifting rod, the hook lifting rod is lifted out of a clamping seat, then the hook lifting rod is rotated, a rod head of the hook lifting rod is enabled to lift a hook lock iron of the car coupler, and a hook tongue pushing iron of the car coupler is enabled to push open the hook tongue. However, since the coupler body is positioned at the end of the car body, the coupler body is easily corroded by rainwater and rusted to make the coupler body stuck, so that shunting personnel can open the coupler knuckle after repeatedly rotating the hook lifting rod for many times.
In the process, firstly, the efficiency is low, as shunting personnel need to reach a connection site to lift the hook lifting rod by hands, the time consumption is high, and in the actual situation, because parts such as a coupler knuckle, a lock iron, a coupler knuckle push iron and the like of the car coupler are rarely maintained, the corrosion conditions of different degrees exist, the rotating friction force of the coupler knuckle is increased, and the shunting personnel are very difficult to lift the hook lifting rod by hands; secondly, personal safety hazards exist, the whole process is manual operation, and particularly when the hook is unhooked at the hump top of a railway, an operator rotates a hook lifting rod to open a coupler knuckle at the joint of two vehicles and walks along with the vehicle, so that personal injury accidents can occur carelessly; thirdly, potential safety hazards of driving exist, in vehicle coupling, due to the reasons of improper hook positions, improper opening of the coupler knuckle, too high coupling speed and the like, the situation that the back of the coupler knuckle collides easily is known as a fist hook, when a shunting person fails to open the coupler knuckle in place, the fist hook can be broken even a coupler can be broken in blind operation, air pipes are broken in small situations, and trains are delayed in large situations.
Therefore, there is a need to develop a device capable of automatically lifting the coupler lifting bar, which can replace the manual operation of rotating the coupler lifting bar to lift the coupler lock iron and open the coupler knuckle in place.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: at present, before two vehicles of a railway train are connected, a shunting worker is required to arrive at the site, and the coupler lifting rod is manually rotated by manpower to lift the coupler locking iron and open the coupler knuckle.
The technical scheme of the invention is as follows:
the automatic hook lifting device for the hook lifting rod of the car coupler is mounted at the end part of a car body of a railway vehicle and comprises an electric control part, a traction air cylinder, a conversion air cylinder, a rod lifting mechanism, a hook lifting rod and a rotary arm for connecting the hook lifting rod and the traction air cylinder.
The side edge of the cylinder body of the traction air cylinder is provided with a first ventilation opening and a second ventilation opening which are symmetrical up and down, the first ventilation opening is close to the top end of the cylinder body, and the second ventilation opening is close to the bottom end of the cylinder body;
a traction hammer is arranged in the traction air cylinder, and a sealing ring is arranged on the traction hammer; the bottom of the traction hammer is connected with a core bar, the bottom end of the core bar extends out of the cylinder body from the bottom of the traction air cylinder body, a bar body of the core bar is solid, and a steel rope is fixedly connected to the bottom of the bar body;
furthermore, a three-layer sliding sleeve is sleeved outside the rod body, an inner sliding sleeve, a middle sliding sleeve and an outer sliding sleeve are sequentially arranged from the rod body of the core rod, the outer sliding sleeve is fixedly connected to the bottom of a cylinder body of the traction air cylinder through a flange, and the traction hammer can drive the inner sliding sleeve and the middle sliding sleeve to slide in the outer sliding sleeve;
a first spring is arranged between the outer sliding sleeve and the inner wall of the traction air cylinder body, the first spring is sleeved on the outer sliding sleeve, the head of the first spring is also sleeved with a stop, and the head of the first spring extends out of the stop; the traction hammer has larger self gravity, and the impact force of the traction hammer is stronger when the traction hammer moves downwards under the action of gravity, so that the first spring is designed to buffer the impact force of the traction hammer, and when the traction hammer falls, the first spring is firstly impacted, and then the first spring buffers the impact force, and then the impact stop is impacted, so that the traction hammer is prevented from impacting the sliding sleeve;
when the traction hammer moves upwards, the inner sliding sleeve is driven to complete the sliding stroke in the middle sliding sleeve, and after the sliding stroke is completed, the inner sliding sleeve drives the middle sliding sleeve to synchronously slide in the outer sliding sleeve;
further, the sliding sleeves are provided with sealing rings;
furthermore, a fixed plate is also arranged below the traction air cylinder, a fixed pulley is arranged at one end of the fixed plate close to the traction air cylinder, and one end of the fixed plate far away from the traction air cylinder is fixedly connected to the end wall of the vehicle body;
furthermore, a strip hole is formed in the center of the fixing plate and used for supporting the hook lifting rod.
In the initial state, the traction hammer is supported by the first spring, so that the traction hammer can stay in the middle of the traction air cylinder.
The rotary arm is L-shaped, one end of the long arm of the rotary arm, far away from the short arm of the rotary arm, is connected with one end of the hook lifting rod, far away from the car coupler, and one end of the short arm of the rotary arm, far away from the long arm of the rotary arm, is lapped on the end wall of the car body under the action of self gravity;
furthermore, a cylindrical pin is welded at one end of the long arm of the rotary arm close to the short arm of the rotary arm, and a steel rope fixedly connected to the bottom of the core rod is connected with the cylindrical pin through a fixed pulley on the fixed plate.
The rod lifting mechanism comprises a rod lifting air cylinder, a lifting rod and a hook lifting rod bracket;
the rod lifting air cylinder is fixedly connected to the end part of the vehicle body, the top of the cylinder body is provided with a third air vent, the third air vent is communicated with an electromagnetic valve A through a first air pipe, the electromagnetic valve A is connected with an external air storage cylinder, and the electromagnetic valve A is continuously electrified in the working process of the device;
a fourth air inlet and a lifting rod air cylinder exhaust hole are formed in the side edge of the cylinder body, the fourth air inlet is located in the middle of the cylinder body, and the lifting rod air cylinder exhaust hole is close to the bottom end of the cylinder body;
a T-shaped piston is arranged in the cylinder body of the rod lifting air cylinder, and a second spring is sleeved on the piston;
furthermore, the bottom end of the piston extends out of the cylinder body from the bottom of the rod lifting air cylinder, the bottom end of the piston is connected with a piston rod, and one end, far away from the piston, of the piston rod is connected with a lifting rod; a rotating pin is arranged at one end of the lifting rod close to the piston rod, so that the lifting rod can rotate around the rotating pin; a bracket is fixedly connected to the rod body at one end, far away from the piston rod, of the lifting rod, and is used for supporting the hook lifting rod to prevent the hook lifting rod from sliding on the lifting rod;
a rotary pin supporting seat fixedly connected with the hook lifting rod bracket is also arranged below the lifting rod and used for mounting a rotary pin;
furthermore, an adjusting bolt A is arranged above the end head of the lifting rod, which is far away from one end of the piston rod, and the adjusting bolt A is arranged on the hook lifting rod bracket;
the hook lifting rod support is used for installing a hook lifting rod and is formed by connecting a U-shaped connecting frame, a semicircular clamping seat and an L-shaped installing seat, the open end of the U-shaped connecting frame is fixedly connected to the end wall of the vehicle body, and the closed end of the U-shaped connecting frame is connected with the semicircular clamping seat; a circular first through hole is formed in the center of the clamping seat, a U-shaped clamping groove is formed below the first through hole, and the first through hole is communicated with the U-shaped clamping groove; one side of the clamping seat, which is far away from the connecting frame, is connected with the short edge of the L-shaped mounting seat, the long edge of the L-shaped mounting seat is provided with a second through hole, and an adjusting bolt A is arranged in the second through hole;
furthermore, a locking nut is turned on the adjusting bolt A, and the rotating angle of the lifting rod around the rotating pin can be limited by adjusting the screwing depth of the adjusting bolt A into the second through hole, so that the lifting height of the end, far away from one end of the piston rod, of the lifting rod is limited.
The hook lifting rod seat is also used for installing a hook body rod and is formed by connecting a U-shaped connecting frame, a triangular connecting plate and a ring, the open end of the U-shaped connecting frame is fixedly connected to the end wall of the vehicle body, the closed end of the U-shaped connecting frame is connected with the triangular connecting plate, one end of the connecting plate, far away from the connecting frame, is connected with the ring, and one end of the hook lifting rod, close to the vehicle hook, is installed on the end wall of the vehicle body through the ring;
furthermore, a limiting support is further arranged between the hook lifting rod support and the hook lifting rod seat, an adjusting bolt B with a locking nut is mounted on the limiting support, one end, far away from the limiting support, of the adjusting bolt B is connected with a limiting plate, the limiting plate is fixedly connected to the hook lifting rod and used for limiting the maximum rotating angle of the hook lifting rod, and the maximum rotating angle of the hook lifting rod is limited so that the height of the hook lifting rod for lifting the hook lock iron can be limited, the opening degree of a hook tongue is limited, and the phenomenon that when a curve is hung, the hook tongues of two vehicle hooks are fully opened to form 'fist hooks', and normal continuous hanging of the vehicles is influenced is avoided; a triangular area is defined by the limiting plate, the adjusting bolt B and the end wall of the car body, and the included angle between the limiting plate and the end wall of the car body can be adjusted by adjusting the depth of the adjusting bolt B screwed into the adjusting support, so that the maximum rotatable angle of the hook lifting rod is adjusted.
When the railway vehicle is used for hooking in a curve, if the coupler tongues of the two car couplers connected with the railway vehicle are all opened, the two car coupler coupling devices can be subjected to a 'fist hook' condition, so that the two coupler tongues of the two car couplers which are connected with the railway vehicle need to be opened to six or seven parts of a full opening position respectively. The two car couplers are respectively opened to six or seven complete parts of the full-open position, and can simultaneously meet the opposite hook of the car couplers on a straight line and a curve, so that a limiting plate is arranged to limit the maximum rotation angle of the hook lifting rod, thereby limiting the opening degree of the coupler knuckle, and only opening the coupler knuckle to six or seven complete parts of the full-open position after the hook lifting rod lifts the coupler lock iron.
The conversion air cylinder and the traction air cylinder are arranged side by side, and a fifth ventilation opening is formed in the top of the cylinder body of the conversion air cylinder; a sixth ventilation opening and a seventh ventilation opening which are symmetrical up and down are formed in one side of the side surface of the cylinder body, which is close to the traction air cylinder, and the sixth ventilation opening and the seventh ventilation opening are positioned in the middle of the cylinder body; an eighth vent, a ninth vent and a conversion air cylinder exhaust hole are formed in one side face of the cylinder body, which is far away from the traction air cylinder, the eighth vent is close to the top of the cylinder body, the ninth vent is close to the bottom of the cylinder body, and the conversion air cylinder exhaust hole is located between the eighth vent and the ninth vent;
a conversion plunger is arranged in the cylinder body of the conversion air cylinder, a sealing ring is arranged on the conversion plunger, and a third spring is arranged below the conversion plunger;
furthermore, a fifth ventilation opening of the conversion air cylinder is communicated with an electromagnetic valve B through a second air pipe, the electromagnetic valve B is connected with an external air storage cylinder, the electromagnetic valve B is electrified intermittently in the working process of the device, the electromagnetic valve B is electrified once every 5 seconds, the time of each electrification is 5 seconds, the electrification is repeated for multiple times, the specific times can be automatically set according to the car coupler corrosion condition, the more serious the car coupler corrosion condition is, the more serious the blocking degree of the hook tongue of the car coupler is, and the more the rotation times of the hook lifting rod are;
in actual conditions, the corrosion degree of the coupler knuckle part of the vehicle coupler is different, and the seizing degree of the coupler body is also different, so that the coupler lifting rod needs to be rotated for many times, and the coupler knuckle is opened to six or seven parts of a full-open position.
When the electromagnetic valve B is powered off, the conversion plunger is positioned at the upper end of the cylinder body of the conversion air cylinder, at the moment, a sixth vent hole of the conversion air cylinder is communicated with an exhaust hole of the conversion air cylinder, and a seventh vent hole of the conversion air cylinder is communicated with a ninth vent hole; when the electromagnetic valve B is electrified, the conversion plunger is positioned at the lower end of the cylinder body of the conversion air cylinder, at the moment, the sixth vent hole of the conversion air cylinder is communicated with the eighth vent hole, and the seventh vent hole of the conversion air cylinder is communicated with the exhaust hole of the conversion air cylinder.
A sixth vent of the conversion air cylinder is communicated with a first vent of the traction air cylinder through an air pipe A, a seventh vent of the conversion air cylinder is communicated with a second vent of the traction air cylinder through an air pipe B, and an eighth vent of the conversion air cylinder is communicated with a ninth vent through an air pipe C;
further, the air pipe C is communicated with a fourth air inlet of the rod lifting air cylinder.
The electric control part is used for controlling the power on and power off of the electromagnetic valve A and the electromagnetic valve B, and further controlling the rotation times of the hook lifting rod.
The specific rotating times of the hook lifting rod can be set automatically according to the actual corrosion condition of the car coupler.
The invention has the following beneficial effects: aiming at the problem that the hook lifting rod needs to be manually rotated to lift the hook locking iron of the car coupler in the existing two-car carriage connection, the invention provides the automatic lifting device for the hook lifting rod of the car coupler, which improves the efficiency of the carriage coupling operation, ensures the personal safety of workers and effectively avoids the problem that the car coupler forms a 'fist hook' or breaks the car coupler when the car coupler is coupled because the coupler knuckle is not opened in place by the workers.
Drawings
Fig. 1 is a schematic view of the installation of the present invention.
Fig. 2 is a schematic view of the installation of each reservoir of the present invention.
Fig. 3 is an overall schematic view of the present invention.
Fig. 4 is a cross-sectional view of the traction reservoir of the present invention.
FIG. 5 is a schematic view of the sliding sleeve of the present invention.
FIG. 6 is a cross-sectional view of the transition reservoir of the present invention.
Fig. 7 is a cross-sectional view of the lift rod reservoir of the present invention.
Fig. 8 is a schematic view of a hook and lift bar support of the present invention.
Fig. 9 is a view showing the installation position of the hook lifting bar support of the present invention.
Description of reference numerals: 1. an electromagnetic valve A; 2. a solenoid valve B; 3. converting an air cylinder; 4. a traction reservoir; 5. hooking a lifting rod; 6. a swivel arm; 7. lifting the rod air cylinder; 8. a lifting rod hooking seat; 9. a lifting rod hooking bracket; 10. a fixing plate; 11. a limiting plate; 12. adjusting the bolt B; 13. a limiting bracket; 301. a second air duct; 302. an air duct C; 303. a sixth ventilation opening; 304. a seventh vent; 305. A fifth ventilation opening; 306. an eighth vent; 307. converting an air cylinder exhaust hole; 308. a ninth vent; 309. a third spring; 310. a transfer plunger; 401. an air duct A; 402. an air duct B; 403. a fixed pulley; 404. a steel cord; 405. a traction hammer; 406. A core bar; 407. a first spring; 408. a sliding sleeve; 409. stopping; 400. a first vent; 410. a second vent; 411. An outer sliding sleeve; 412. a middle sliding sleeve; 413. an inner sliding sleeve; 701. a first air duct; 702. a piston rod; 703. a rod lifting air cylinder exhaust hole; 704. a fourth vent; 705. a third vent; 706. a piston; 707. a second spring; 901. adjusting the bolt A; 902. a connecting frame; 903. a card holder; 904. a mounting seat; 905. a second through hole; 906. a U-shaped clamping groove; 907. a first through hole; 908. lifting the rod; 909. a pivot pin; 910. a rotating pin supporting seat; 911. a bracket.
Detailed Description
In order to facilitate an understanding of the invention, reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings.
The utility model provides an automatic lifting hook device of coupling hook shadoof, whole device is installed at the automobile body tip of rail vehicle, and it includes automatically controlled portion, draws reservoir 4, conversion reservoir 3, lifts the pole mechanism, hook shadoof 5 and connect hook shadoof 5 and draw the gyration arm 6 of reservoir 4.
The side edge of the cylinder body of the traction air cylinder 4 is provided with a first ventilation opening 400 and a second ventilation opening 410 which are symmetrical up and down;
a traction hammer 405 is arranged in the traction air cylinder 4, and a sealing ring is arranged on the traction hammer 405; the bottom of the traction hammer 405 is connected with a core rod 406, the bottom end of the core rod 406 extends out of the cylinder body from the bottom of the cylinder body of the traction air cylinder 4, the rod body of the core rod 406 is solid, the bottom of the rod body is fixedly connected with a steel rope 404, and the steel rope 404 is fixedly connected to the bottom of the traction hammer 405; the outside of the rod body is sleeved with three layers of sliding sleeves, starting from the rod body of the core rod 406, an inner sliding sleeve 413, a middle sliding sleeve 412 and an outer sliding sleeve 411 are arranged in sequence, and the outer sliding sleeve 411 is fixedly connected to the bottom of the cylinder body of the traction air cylinder 4 through a flange;
a first spring 407 is further installed between the outer sliding sleeve 411 and the inner wall of the cylinder body of the traction air cylinder 4, the first spring 407 is sleeved on the outer sliding sleeve 411, and the head of the first spring is further sleeved with a stop 409;
further, the sliding sleeves are provided with sealing rings;
further, a fixed plate 10 is further installed below the traction air cylinder 4, a fixed pulley 403 is installed at one end, close to the traction air cylinder 4, of the fixed plate 10, and one end, far away from the traction air cylinder 4, of the fixed plate is fixedly connected to the end wall of the vehicle body;
further, a central position of the fixing plate 10 is provided with a strip hole.
The rotary arm 6 is L-shaped, one end of the long arm of the rotary arm 6, which is far away from the short arm, is connected with one end of the hook lifting rod 5, which is far away from the car coupler, and one end of the short arm of the rotary arm 6, which is far away from the long arm, is lapped on the wall of the car body under the action of self gravity;
furthermore, a cylindrical pin is welded at one end of the long arm of the revolving arm 6 close to the short arm, and a steel rope 404 fixedly connected to the bottom of the rod body of the core rod 406 is connected with the cylindrical pin through a fixed pulley 403 on the fixed plate 10.
The rod lifting mechanism comprises a rod lifting air cylinder 7, a lifting rod 908 and a hook lifting rod bracket 9;
the rod lifting air cylinder 7 is fixedly connected to the end part of the vehicle body, the top of the cylinder body is provided with a third air vent 705, the third air vent 705 is communicated with an electromagnetic valve A1 through a first air pipe 701, and the electromagnetic valve A1 is connected with an external air storage cylinder;
a fourth air inlet 704 and a lifting rod air cylinder exhaust hole 703 are also formed in the side edge of the cylinder body;
a T-shaped piston 706 is arranged in the cylinder body of the rod lifting air cylinder 7, and a second spring 707 is sleeved on the piston 706;
further, the bottom end of the piston 706 extends out of the cylinder body from the bottom of the rod lifting air cylinder 7, the bottom end of the piston 706 is connected with a piston rod 702, and one end of the piston rod 702, which is far away from the piston 706, is connected with a rod lifting 908; a rotating pin 909 is arranged at one end of the lifting rod 908 close to the piston rod 702, and a bracket 911 is fixedly connected to the rod body of the lifting rod 908 far away from one end of the piston rod 702;
a rotary pin supporting seat 910 fixedly connected with the hook lifting rod bracket 9 is also arranged below the lifting rod 908;
furthermore, an adjusting bolt A901 is installed above the end of the lifting rod 908 far away from one end of the piston rod 702, the adjusting bolt A901 is installed on a hook lifting rod support 9, the hook lifting rod support 9 is formed by connecting a U-shaped connecting frame 902, a semicircular clamping seat 903 and an L-shaped mounting seat 904, the open end of the U-shaped connecting frame 902 is fixedly connected to the end wall of the vehicle body, and the closed end is connected with the semicircular clamping seat 903; a first through hole 907 is formed in the center of the clamping seat 903, a U-shaped clamping groove 906 is formed below the first through hole 907, and the first through hole 907 is communicated with the U-shaped clamping groove 906; one side of the clamping seat 903, which is far away from the connecting frame 902, is connected with a short edge of an L-shaped mounting seat 904, a second through hole 905 is formed in the long edge of the L-shaped mounting seat 904, and an adjusting bolt A901 is installed in the second through hole 905;
still further, a lock nut is turned on the adjusting bolt a 901.
The hook lifting rod 5 is arranged on the vehicle body end wall through a hook lifting rod support 9 and a hook lifting rod seat 8, the hook lifting rod seat 8 is formed by connecting a U-shaped connecting frame, a triangular connecting plate and a ring, the open end of the U-shaped connecting frame is fixedly connected to the vehicle body end wall, the closed end of the U-shaped connecting frame is connected with the triangular connecting plate, one end of the connecting plate far away from the connecting frame is connected with the ring, and one end of the hook lifting rod close to a coupler is arranged on the vehicle body end wall through the ring;
further, still install spacing support 13 between hook lifting rod support 9 and the hook lifting rod seat 8, install adjusting bolt B12 that the car has lock nut on the spacing support 13, adjusting bolt B12 is kept away from the one end of spacing support 13 and is connected with limiting plate 11, and limiting plate 11 rigid coupling is on hook lifting rod 5.
The conversion air cylinder 3 and the traction air cylinder 4 are arranged side by side, and a fifth ventilation opening 305 is formed in the top of the cylinder body of the conversion air cylinder 3; a sixth vent 303 and a seventh vent 304 which are symmetrical up and down are arranged on one side of the side surface of the cylinder body close to the traction air cylinder 4, and an eighth vent 306, a ninth vent 308 and a conversion air cylinder exhaust hole 307 are arranged on one side of the side surface of the cylinder body far away from the traction air cylinder 4;
a conversion plunger 310 is arranged in the cylinder body of the conversion air cylinder 3, a sealing ring is arranged on the conversion plunger 310, and a third spring 309 is arranged below the conversion plunger 310;
further, the fifth vent 305 of the switching reservoir 3 is connected to the solenoid valve B2 through the second duct 301, and the solenoid valve B2 is connected to an external reservoir.
The sixth ventilation opening 303 of the conversion air cylinder 3 is communicated with the first ventilation opening 400 of the traction air cylinder through an air pipe A401, the seventh ventilation opening 304 of the conversion air cylinder 3 is communicated with the second ventilation opening 410 of the traction air cylinder through an air pipe B402, and the eighth ventilation opening 306 and the ninth ventilation opening 308 of the conversion air cylinder 3 are communicated through an air pipe C302;
further, the air duct C302 communicates with a fourth air outlet 704 of the lift rod air cylinder 7.
The electric control part is used for controlling the power-on and power-off of the electromagnetic valve A1 and the electromagnetic valve B2, and further controlling the rotation times of the hook lifting rod 5.
The following describes the process of completing the automatic full opening of the coupler knuckle of the present invention in detail by taking 10 times of rotation of the hook lifting rod as an example.
In the initial state, the traction hammer 405 is supported by the first spring 407, the traction hammer 405 is positioned in the middle of the traction air cylinder 4, the steel rope 404 connected with the rod 406 is in a loose state, and the rotating arm 6 connected with the steel rope 404 is lapped on the vehicle body wall under the action of self gravity.
After the electromagnetic valve a1 is powered on, the third vent 705 of the rod lifting air cylinder 7 is communicated with an external air storage cylinder through the first air pipe 701, pressure air in the air storage cylinder flows into the rod lifting air cylinder 7 through the third vent 705, and because the rod lifting air cylinder 7 is provided with the rod lifting air cylinder vent hole 703, as the needle cylinder is pushed, the piston 706 in the rod lifting air cylinder 7 moves downwards under the pushing of the pressure air, and compresses the second spring 707 to drive the piston rod 702 connected with the piston 706 to press downwards, so as to drive the rod lifting 908 connected with the piston rod 702 to rotate anticlockwise around the rotating pin 909, and the bracket 911 fixedly connected to the rod lifting 908 lifts the hook lifting rod 5, so that the hook lifting rod 5 is separated from the U-shaped clamping groove 906 on the clamping seat 903, until the end of the rod lifting rod 908, which is far away from one end of the piston rod 702, touches the adjusting bolt a901, and the rod lifting rod 908 stops rotating; at this time, the flat portion of the hook lifting rod 5 is released from the restriction of the U-shaped clamping groove 906 on the clamping seat 903 and stays in the first through hole 907 in the center of the clamping seat 903.
During the movement of the piston 706, the pressure air flowing in from the third vent 705 flows into the air duct C302 through the fourth vent 704, and then flows into the converting air cylinder 3 through the air duct C302;
at this time, the electromagnetic valve B2 of the conversion air cylinder 3 is not powered on and is in a power-off state, the conversion plunger 310 is positioned at the upper end of the cylinder body of the conversion air cylinder 3, the sixth vent 303 of the conversion air cylinder 3 is communicated with the conversion air cylinder exhaust hole 307, the seventh vent 304 of the conversion air cylinder 3 is communicated with the ninth vent 308, the seventh vent 304 of the conversion air cylinder 3 is communicated with the second vent 410 of the traction air cylinder 4 through an air pipe B402, and the sixth vent 303 of the conversion air cylinder 3 is communicated with the first vent 400 of the traction air cylinder 4 through an air pipe a401, so that the pressure air flowing into the conversion air cylinder 3 flows into the traction air cylinder 4 through the air pipe B402, and pushes the traction hammer 405 to move upwards in the cylinder body of the traction air cylinder 4;
the pressure air above the traction hammer 405 in the cylinder body enters the air pipe A401 through the first ventilation opening 400 of the traction air cylinder 4, enters the sixth ventilation opening 303 of the conversion air cylinder 3 through the air pipe A401, enters the conversion air cylinder 3 through the sixth ventilation opening 303, and is exhausted to the atmosphere through the conversion air cylinder exhaust hole 307;
the traction hammer 405 moves upwards, the core rod 406 drives the steel rope 404 connected to the bottom of the core rod 406 to lift upwards, the steel rope 404 is converted into a stretched state from a slow loosening state, the steel rope 404 drives the rotary arm 6 to rotate clockwise, the hook lifting rod 5 connected with the rotary arm 6 is driven to rotate clockwise, the hook lifting rod 5 lifts the hook locking iron of the car coupler and opens the coupler knuckle, and the process needs 5 seconds to be completed.
After 5s, the electromagnetic valve B2 is electrified, the electromagnetic valve A1 is electrified, the external air storage cylinder continuously charges pressure air into the rod lifting air cylinder 7, the piston rod 702 keeps a pressing state, the pressure air entering the rod lifting air cylinder 7 continuously flows into the conversion air cylinder 3 through the air pipe C302, the electromagnetic valve B2 is electrified, the fifth ventilation opening 305 of the conversion air cylinder 3 is communicated with the air storage cylinder of the vehicle through the second air pipe 301, the pressure air in the air storage cylinder flows into the conversion air cylinder 3 through the fifth ventilation opening 305 and pushes the conversion plunger 310 to move to the lower end of the cylinder body of the conversion air cylinder 3, so that the sixth ventilation opening 303 of the conversion air cylinder 3 is communicated with the eighth ventilation opening 306, the seventh ventilation opening 304 of the conversion air cylinder 3 is communicated with the conversion air cylinder exhaust hole 307, the seventh ventilation opening 304 of the conversion air cylinder 3 is communicated with the second ventilation opening 410 of the traction air cylinder 4 through the air pipe B402, the sixth ventilation opening 303 of the conversion air cylinder 3 is communicated with the first ventilation opening 400 of the traction air cylinder 4 through the air pipe A401, therefore, the pressure air flowing into the conversion air cylinder 3 through the lifting rod air cylinder 7 flows into the upper part of the traction air cylinder 4 through the air pipe A401, and the traction hammer 405 in the cylinder body of the traction air cylinder 4 moves downwards under the combined action of the pressure air and the self gravity until the pressure air touches and compresses the first spring 407 and then stops moving;
in the process that the traction hammer 405 moves downwards, air below the traction hammer 405 in the cylinder body is discharged into the air pipe B402 through the second ventilation opening 410, is discharged into the conversion air cylinder 3 through the air pipe B402 and the seventh ventilation opening 304, and is discharged into the atmosphere through the conversion air cylinder exhaust hole 307 of the conversion air cylinder 3;
after the traction hammer 405 moves downwards, the steel rope 404 connected with the bottom of the core rod 406 is changed into a slowly loosening state from a tightening state, and along with the continuous downward movement of the traction hammer 405, the rotary arm 6 connected with the steel rope 404 rotates anticlockwise to an initial state under the action of self gravity, so that the hook lifting rod 5 connected with the rotary arm 6 is driven to rotate anticlockwise, the hook lifting rod 5 is enabled to put down the hook locking iron of the coupler, and the process is finished in 5 s.
5s later, the electromagnetic valve B2 is de-energized, the electromagnetic valve B2 discharges the pressure air above the conversion plunger 310 in the conversion air cylinder 3, and the conversion plunger 310 at the lower end of the cylinder body of the conversion air cylinder 3 moves upwards to the upper end of the cylinder body of the conversion air cylinder 3 under the action of the third spring 309;
because the electromagnetic valve a1 is always in the power-on state, the external air storage cylinder can continuously charge pressure air into the lifting rod air cylinder 7, and the pressure air in the lifting rod air cylinder 7 continuously flows into the conversion air cylinder 3 through the air pipe C302, so that the pressure air flowing into the conversion air cylinder 3 can flow into the traction air cylinder 4 through the seventh vent 304, enters the position below the traction hammer 405 through the second vent 410 of the traction air cylinder 4, and pushes the traction hammer to move upwards; at this time, the pressure air above the traction hammer 405 enters the air pipe a401 through the first ventilation opening 400 of the traction air cylinder 4, enters the sixth ventilation opening 303 of the conversion air cylinder 3 through the air pipe a401, and is exhausted into the atmosphere through the conversion air cylinder exhaust hole 307;
the traction hammer 405 moves upwards, the core rod 406 drives the steel rope 404 connected to the bottom of the core rod 406 to lift upwards, the steel rope 404 is converted into a stretched state from a slow loosening state, the steel rope 404 drives the rotary arm 6 to rotate clockwise, the hook lifting rod 5 connected with the rotary arm 6 is driven to rotate clockwise, the hook lifting rod 5 lifts the hook locking iron of the car coupler and rotates the coupler knuckle again, and the process needs 5 seconds to be completed;
after 5s, the electromagnetic valve B2 is powered on again, the device repeats the work until the traction hammer 405 is repeatedly powered on for 10 times under the continuous power-on operation of the electromagnetic valve A1 and the intermittent power-on operation of the electromagnetic valve B2 to open the coupler knuckle in place, and the electric control part controls the electromagnetic valve A1 and the electromagnetic valve B2 to be powered off;
at this time, the hook lifting rod 5 has released the hook lock iron of the coupler, the solenoid valve a1 exhausts the pressure air above the piston 706 in the lifting rod reservoir 7, and the solenoid valve a2 exhausts the pressure air above the switching plunger 310 in the switching reservoir 3; the piston 706 moves up to the upper end of the rod lifting air cylinder under the action of the second spring 707, and the conversion plunger 310 also moves up to the upper end of the cylinder body of the conversion air cylinder 3 under the action of the third spring 309; the piston 706 moves upwards to drive the piston rod 702 connected with the piston 706 to move upwards, and further drive the lifting rod 908 connected with the piston rod 702 to rotate clockwise around the rotating pin 909, so that the bracket 911 fixedly connected to the lifting rod 908 is separated from the hook lifting rod 5, and the hook lifting rod 5 falls into the U-shaped clamping groove 906 on the clamping seat 903 under the action of self gravity to recover the initial state;
after the piston 706 moves upwards, the fourth vent 704 of the rod lifting air cylinder 7 is communicated with the conversion air cylinder 3 through the air pipe C302; the pressure air above the traction hammer 405 in the traction air cylinder 4 flows into the air pipe A401 through the first ventilation opening 400, flows into the conversion air cylinder 3 through the air pipe A401 and the sixth ventilation opening 303, and is exhausted into the atmosphere through the conversion air cylinder exhaust hole 307; the pressure air below the traction hammer 405 in the traction air cylinder 4 flows into the air pipe B402 through the second ventilation opening 410, flows into the conversion air cylinder 3 through the air pipe B402 and the seventh ventilation opening 304, flows into the rod lifting air cylinder 7 through the ninth ventilation opening 308 and the air pipe C302, and is exhausted into the atmosphere through the rod lifting air cylinder exhaust hole 703.
So far, the whole device completes the whole process of automatically opening the coupler knuckle, and the lifting hook parts are respectively lifted to restore the initial state.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.