CN101994747B - Sun gear coaxial drive screw nut structure and its driven stud structure - Google Patents

Abstract

The present invention relates to a sun gear coaxially driven screw nut structure and a stud structure driven by it, wherein an inner ring gear is set on a nut, a rocker arm structure of at least one planetary gear is set on a bolt, and a screw nut set or spiral structure is used to perform locking or loosening operations by means of a sun gear coaxially driven with the center of the nut.

Description

Sun gear coaxial drive screw nut structure and its driven stud structure

technical field

The present invention is a sun gear coaxially driven screw and nut structure. In order to arrange the inner ring gear on the nut, the rocker arm structure of at least one pinion gear is arranged on the bolt. The sun gear is used as a screw and nut group or a helical structure for locking or loosening operations.

Background technique

Traditionally, the screw and nut set or screw device with planetary double force locking or adjustment or disassembly is used to set the inner ring gear on the nut and the cylindrical sun gear to the bolt, so as to drive the planetary gear and then drive The nut of the inner ring gear is used for locking or loosening, but when the above structure is used for locking or loosening the nut, the position of the axis of the planetary gear that exerts force must move, which is inconvenient to operate and has a large interference space. big.

Contents of the invention

The structure of the sun gear coaxially driven screw and nut of the present invention is that the inner ring gear is arranged on the nut, and the rocker structure of at least one pinion gear is arranged on the bolt, and the sun gear driven coaxially with the center of the nut is used as a lock. Screw-nut set or helix for tightening or loosening operation.

Description of drawings

The features and advantages of the present invention are described in detail below in conjunction with the accompanying drawings:

Figure 1 is a top sectional view of the present invention.

Figure 2 is a side sectional view of the present invention.

Fig. 3 is a three-dimensional exploded view of the present invention.

FIG. 4 is a schematic perspective view showing that the polygonal through holes or blind holes 124 in FIGS. 1 to 3 are replaced by polygonal cylinders 124'.

FIG. 5 is a side sectional view of the polyhedral column 124' in FIGS. 1-3.

FIG. 6 is a side cross-sectional view of a concave polygonal hole 143 disposed in the axial blind hole 126 as shown in FIGS. 1 to 3 .

FIG. 7 is an exploded perspective view of FIG. 6 .

FIG. 8 is a schematic diagram showing the application of the driven stud 140 welded to the structure 200 according to the present invention.

FIG. 9 is a schematic diagram showing the application of the stud 140 screwed into the screw hole of the structure 200 of the present invention.

FIG. 10 is a schematic diagram showing the application of the stud 140 of the present invention penetrating through the structure and having a nut at the other end.

FIG. 11 is a schematic diagram showing the application of the stud 140 of the present invention which penetrates through the structure 200 and has a stud head with a rotation-limiting square bolt at the other end.

FIG. 12 is a schematic diagram of an application in which drivable nuts 101 are arranged at both ends of a stud 140 according to the present invention.

Detailed ways

As shown in Figures 1 to 3, the main components of the present invention include:

Outer protective cover 100: in order to be a bottle cap-like structure, it is locked to the stud 140 by the shaft 128, and is used to fit on the upper outer ring of the drivable nut 101 to protect the planetary wheel set;

Drivable nut 101: it is a ring-shaped structure, and the upper structure of the inner ring can be integrally formed or the inner ring gear 102 can be set in a combined manner. , so that when the sun gear cylinder 121 is driven to drive the inner ring gear 102 through the pinion gear 131, the drivable nut 101 can be loosened or locked by forward rotation or reverse rotation;

The exterior of the stud 140 has threads 142 for coupling to the internal thread 112 of the drivable nut 101, and the upper part of the head of the stud 140 is provided with one or more shaft posts 128 for the planetary gear 131 to perform rotary operation. The head of 140 is provided with an axial blind hole 126 for the shaft-shaped structure 125 protruding from the lower end of the sun gear cylinder 121 to rotate therein;

Planetary gear 131: It is provided with a shaft hole 130 for coupling and rotating with the shaft column 128, so as to be coupled between the sun gear of the sun gear cylinder 121 and the inner ring gear 102 that can drive the nut 101 to form an interactive tour The function of the star wheel set;

The coupling mode between the planetary gear 131 and the head of the stud 140 can also be the opposite structure, and the planetary gear 131 is provided with a coaxial protruding shaft-shaped structure, and the top of the stud head is provided with a shaft hole. for rotatable coupling;

The above-mentioned shaft column 128 and pinion gear 131 may be composed of one or more than one;

Sun gear cylinder 121: The sun gear cylinder 121 is a columnar structure, and its upper structure can be integrally formed or combined to form a cylindrical tooth end 122. The sun gear cylinder 121 has a shaft for coupling with an external tool along the axial center. polygonal through-hole or blind hole 124, or in the form of a polygonal cylinder 124' actuated by a tool coupled thereto;

As shown in Figure 4, it is a three-dimensional schematic diagram showing that the polygonal through hole or blind hole 124 in Figures 1 to 3 is replaced by a polyhedral cylinder 124'; Figure 5 shows that the polygonal cylinder 124' is set in Figures 1 to 3 side sectional view.

If the polygonal through hole or blind hole 124 in the axial center of the sun gear cylinder 121 is a through hole, and a polygonal hole 143 is set at the stud 140, it can be penetrated by an external polygonal wrench to connect with the stud 140. The polygonal hole 143 is used as the coupling for rotary drive;

The lower end of the sun gear cylinder 121 has a protruding shaft-like structure 125 for the axial blind hole 126 coupled to the top of the stud 140 to rotate, and the sun gear cylinder 121 can be driven by an operating tool that is separated from it and randomly coupled , or the operating tool is combined with the sun gear cylinder 121 or has an integral structure;

In the aforementioned sun gear coaxial drive type screw and nut structure, the protruding shaft-shaped structure 125 provided on the sun gear cylinder 121 and the shaft hole 126 provided on the head of the stud 140 are used as another coupling that can be relatively rotatable. The structural method can be that the protruding shaft-shaped structure 125 and the axial blind hole 126 are set in reverse;

The aforementioned sun gear coaxial drive type screw and nut structure can also be provided with an inner concave polygonal hole 143 in the axial blind hole 126 provided on the head of the stud 140, so as to connect with the convex hole 143 provided by the sun gear cylinder 121. The shaft-like structure 125 protrudes relative to the polyhedral cylinder for coupling:

As shown in FIG. 6 , as shown in FIGS. 1 to 3 , a side sectional view of a concave polygonal hole 143 is provided in the axial blind hole 126 ; FIG. 7 is an exploded perspective view of FIG. 6 .

This sun gear coaxially driven screw and nut structure can be driven by manpower or fluid motor or mechanical force or electric motor to drive the operating tool to drive the sun gear cylinder 121, and then drive the inner ring gear through the pinion gear 131. 102 can drive the nut 101, and according to the deceleration multiple of the planetary gear set, a multiplier effect can be generated to drive the drivable nut 101 to be screwed on the screw thread 142 of the stud 140 for locking or loosening;

The sun gear coaxial drive type screw nut structure can optionally be equipped with anti-vibration washer gaskets between the drivable nut 101 and the stud 140, or directly screwed on the thread 142 of the stud 140, and the stud 140 The root end of is:

(1) The stud 140 is welded to the structure 200, and the nut 101 can be driven to be screwed on the stud 140 to lock or release the fixed body 300. The end of the stud facing the tool has a concave Polygonal holes or polygonal cylinders; as shown in Figure 8, the application schematic diagram of the driven stud 140 of the present invention being welded to the structure 200; or

(2) The stud 140 is a screw hole screwed to the structure 200 in a stud structure, the nut 101 is screwed to the stud 140 to lock or release the fixed body 300, and the stud faces the end of the tool It has a concave polygonal hole or a polygonal cylinder, as shown in FIG. 9, which is a schematic diagram of the application of the stud 140 of the present invention screwed into the screw hole of the structure 200; or

(3) The stud 140 runs through the structure 200, and the other end has a nut and is combined with the structure 200. The nut 101 is screwed on the stud 140 to lock or release the fixed body 300. The end of the column facing the tool has a concave polygonal hole or a polygonal column; as shown in Figure 10, it is a schematic diagram of the application of the stud 140 of the present invention passing through the structure, and the other end is provided with a nut; or

(4) The stud 140 runs through the structure 200, and the other end has a limited-rotation square bolt stud head and is combined with the structure 200. The nut 101 is screwed on the stud 140 to lock the fixed body 300 Or released, the end of the stud facing the tool has a concave polygonal hole or a polygonal cylinder; as shown in Figure 11, the stud 140 of the present invention penetrates the structure 200, and the other end has a rotation-limiting square bolt An application diagram of the column head; or

(5) The stud 140 runs through between the structure 200 and the fixed body 300, and the nut 101 is screwed on both ends of the stud 140 to lock or release the fixed body 300, and the stud faces the tool The end has a concave polygonal hole or a polygonal cylinder; as shown in Figure 12, it is an application schematic diagram of the two ends of the stud 140 of the present invention being provided with a drivable nut 101;

In this sun gear coaxial drive type screw and nut structure, its driving operation tool is capable of performing one or more of the following driving operations on the sun gear cylinder 121 and/or the stud 140, including:

(1) It can be used as a rotary drive for forward steering or reverse steering;

(2) In the reciprocating drive, one of the driving directions produces a driving effect, while the other direction is a one-way drive that does not produce a driving effect;

(3) In the reciprocating drive, one of the driving directions can be selected to produce a driving effect, while the other direction is a one-way drive that does not produce a driving effect;

In this sun gear coaxial drive type screw and nut structure, the driving method of the sun gear cylinder 121 and/or the stud 140 includes the protruding polyhedral cylinder or the concave polyhedral cylinder of the sun gear cylinder 121. The angular hole 124, and/or the stud 140 head has a protruding polyhedron cylinder or a polygonal hole 143, to be driven by a pull-type tool coupled randomly, or driven by a rotary drive device; or driven by a driving tool Or driving device as a fixed or combined or detachable combination;

In addition to using various socket wrenches, or open-end wrenches, or closed wrenches, or internal polygonal wrenches or screwdrivers and other driving tools, the driving tools or devices of this sun gear coaxial drive type screw and nut structure can also be further used. A driving tool including one or more of the following functional devices, such as: (1) a device with a torque limit function for driving torque; (2) a device with a functional device for limiting the driving torque required for adjustable settings; 3) An analog or digital display functional device capable of displaying the driving torque; (4) A sound or voice functional device capable of displaying the driving torque state; (5) A light signal functional device capable of displaying the driving torque state.

Claims (7)

1. A sun gear coaxially driven screw and nut structure, characterized in that, for the inner ring gear to be arranged on the nut, the rocker arm structure of at least one planetary gear is arranged on the bolt, and by the same as the center of the nut The sun gear driven by the shaft is used as a screw and nut group or a helical structure for locking or loosening operations; the sun gear coaxially drives the screw and nut structure, and its main components include: Outer protective cover (100): In order to be a bottle cap-like structure, it is locked to the stud (140) by the shaft column (128), and is used to fit on the upper outer ring of the drivable nut (101) to protect the planetary wheel set; Drivable nut (101): It is a ring-shaped structure, and the upper structure of the inner ring can be made integrally or the inner ring gear (102) can be set in a combined manner, and the lower part of the structure has an internal thread (112) for coupling. The thread (142) of the stud (140) is used to loosen or lock the thread by forward or reverse rotation when the sun gear cylinder (121) is driven to drive the inner ring gear (102) through the pinion gear (131). Tightly drive nut (101); The external thread (142) of the stud (140) is provided for coupling to the internal thread (112) of the drivable nut (101), and the top of the head of the stud (140) is provided with one or more shaft posts (128) For the planetary gear (131) to rotate, the head of the stud (140) is provided with an axial blind hole (126) for the shaft-shaped structure (125) protruding from the lower end of the sun gear cylinder (121) to rotate therein; The above-mentioned shaft column (128) and planetary gear (131) may be composed of one or more than one; Planetary gear (131): to be provided with a shaft hole (130) for coupling rotation with the shaft column (128), the shaft column (128) passes through the shaft hole (130) on the planetary gear (131) and screwed is coupled to the stud (140) for coupling between the sun gear of the sun gear cylinder (121) and the inner ring gear (102) of the drive nut (101) to form an interactive planetary The function of the wheel set; Sun gear cylinder (121): The sun gear cylinder (121) is a columnar structure, and its upper structure can be integrally formed or combined to form a cylindrical tooth end (122), and the sun gear cylinder (121) along the axis There is a polygonal through hole or a blind hole (124) toward the center for coupling with an external tool, or a structure in the form of a polyhedral column (124') to accept the drive of the tool coupled thereto. 2. The sun gear coaxially driven screw and nut structure according to claim 1, characterized in that the coupling mode of the pinion gear (131) and the head of the stud (140) can also be the opposite structure, and In order to be provided with a coaxial protruding shaft-shaped structure by the pinion gear (131), a shaft hole is set at the top of the stud head for rotatable coupling. 3. The sun gear coaxially driven screw and nut structure according to claim 1, characterized in that, the polygonal through hole or blind hole (124) in the axial center of the sun gear cylinder (121) is a through hole, And the polygonal hole (143) is set at the stud (140), then it can be penetrated by an external polygonal wrench, so as to be coupled with the polygonal hole (143) of the stud (140) as a rotary drive. 4. The sun gear coaxially driven screw and nut structure according to claim 1, wherein the lower end of the sun gear cylinder (121) has a protruding shaft-like structure (125) for coupling to the stud ( 140) The axial blind hole (126) at the top is rotated, and the sun gear cylinder (121) can be driven by an operating tool that is separated from it and randomly coupled, or the operating tool is formed with the sun gear cylinder (121). Combining or forming an integral structure. 5. The sun gear coaxial drive type screw and nut structure as claimed in claim 4, characterized in that, the sun gear coaxial drive type screw and nut structure, the protruding shaft shape provided by the sun gear cylinder (121) Structure (125) and the axle hole (126) that the stud (140) head is provided with another structure that can be coupled relative to rotation can be to protrude axle-shaped structure (125) and axial blind hole (126) In reverse setting. 6. The sun gear coaxially driven screw and nut structure according to claim 4, characterized in that, the sun gear coaxially driven screw and nut structure can also be arranged in the axial direction of the head of the stud (140). The blind hole (126) is provided with a concave polygonal hole (143) for coupling with the protruding shaft-shaped structure (125) provided by the sun gear cylinder (121) and protruding relative to the polygonal cylinder. 7. The sun gear coaxially driven screw and nut structure according to claim 1, characterized in that the operating tool can be driven by manpower or mechanical force to drive the sun gear cylinder (121), and then through the planetary The gear (131) drives the drivable nut (101) with the inner ring gear (102), and the multiplier effect is generated according to the deceleration multiple of the planetary gear set, so as to drive the drivable nut (101) and screw on the stud The screw thread (142) of (140) is used for locking or loosening, wherein, the said mechanical force includes a fluid motor or an electric motor.