Disassembling tool for stud bolts

Abstract

This invention belongs to the field of mechanical assembly technology, specifically relating to a disassembly fixture for double-ended studs. This invention aims to solve the problem of complex operation when disassembling double-ended studs using related disassembly tools. The disassembly fixture for double-ended studs of this invention includes a housing and a first rotating wheel and a second rotating wheel disposed on the housing. The first rotating wheel rotates in place around the axis of a first threaded hole, while the second rotating wheel, while rotating around the axis of a second threaded hole, also moves towards the first rotating wheel along the axis of the second threaded hole until it abuts against the first rotating wheel. At this point, the first rotating wheel, the second rotating wheel, and the double-ended stud form a whole. Continuing to rotate the first rotating wheel, the first rotating wheel, the second rotating wheel, and the double-ended stud, as a whole, rotate along the screw-out direction of the double-ended stud until the screw-in end of the double-ended stud is screwed out of the base part. The entire process only requires rotating the first and second rotating wheels, making the operation simple.

Description

Technical Field

[0001] This invention relates to the field of mechanical assembly technology, and in particular to a disassembly tool for a double-ended stud. Background Technology

[0002] Double-ended studs are cylindrical fasteners with threads at both ends. They are widely used in the field of mechanical assembly and are often used when the parts being connected are too thick or when bolt connections are not suitable due to structural limitations.

[0003] A double-ended stud has a screw-in end and a locking end. The base part has a threaded hole, and the part to be connected has a connecting hole. When using a double-ended stud to connect the base part and the part to be connected, first screw the screw-in end into the threaded hole, then insert the double-ended stud into the connecting hole, with the locking end extending to the outside of the part to be connected. Finally, a nut is attached to the locking end to achieve the connection between the base part and the part to be connected. In related technologies, a disassembly tool is often used to remove the double-ended stud from the base part. The disassembly tool includes a double-ended nut and a locking bolt. One end of the double-ended nut has a first threaded hole, and the other end has a second threaded hole. The axes of the first and second threaded holes are collinear, and their directions of rotation are opposite. The first threaded hole is used to mate with the locking end, and the second threaded hole is used to mate with the locking bolt. When using the disassembly tool, first screw the fastening end into the first threaded hole, then screw the locking bolt into the second threaded hole and make the locking bolt abut against the fastening end. When you continue to rotate the locking bolt, the locking bolt will drive the double-ended stud to rotate through the double-ended nut until the double-ended stud is unscrewed from the base part.

[0004] However, the disassembly tools in the relevant technology require multiple tightening steps to remove the double-ended stud from the base part, making the operation complicated. Summary of the Invention

[0005] In view of this, the main objective of this invention is to provide a disassembly fixture for double-ended studs to solve the technical problem of complex operation when disassembling double-ended studs using related disassembly tools.

[0006] To achieve the above objectives, embodiments of the present invention provide a disassembly fixture for a double-ended stud, comprising: a housing and a first rotating wheel and a second rotating wheel disposed on the housing. The first rotating wheel has a first threaded hole and rotates about the axis of the first threaded hole. The second rotating wheel has a second threaded hole, which is collinear with the axis of the first threaded hole and has the same direction of rotation as the first threaded hole. The first threaded hole and the second threaded hole are used for threaded connection with the double-ended stud. The second rotating wheel rotates about the axis of the second threaded hole and rotates in the opposite direction to the rotation of the first rotating wheel. When rotating, the second rotating wheel also moves toward the first rotating wheel so that the second rotating wheel abuts against the first rotating wheel.

[0007] In some embodiments that may include the above embodiments, the disassembly fixture further includes a transmission mechanism disposed on the housing, and the transmission mechanism is throttle-connected to the first rotating wheel and the second rotating wheel.

[0008] In some embodiments that may include the above embodiments, the first rotating wheel includes a first gear, the second rotating wheel includes a second gear, the transmission mechanism includes a rotating rod, a third gear, a fourth gear and a fifth gear, the third gear and the fourth gear are mounted on the rotating rod, the third gear meshes with the second gear; the fifth gear is rotatably mounted on the housing, the fifth gear meshes with the fourth gear, and the first gear meshes with the fifth gear.

[0009] In some embodiments that may include the above-described embodiments, the end of the rotating rod extends outside the housing.

[0010] In some embodiments that may include the above embodiments, a rotating block is provided at the end of the rotating rod, the rotating block being used to cooperate with a wrench.

[0011] In some embodiments that may include the above embodiments, the rotating block is provided with a fixing groove on the side opposite to the housing, and the fixing groove is used to cooperate with a wrench.

[0012] In some embodiments that may include the above embodiments, the fixing groove is a cubic groove.

[0013] In some embodiments that may include the above embodiments, a limiting screw is provided on the housing, the limiting screw is located on the side of the second rotating wheel opposite to the first rotating wheel, and the limiting screw is threadedly connected to a portion of the second threaded hole.

[0014] In some embodiments that may include the above embodiments, a rotating groove is provided on the side of the second rotating wheel away from the first rotating wheel, and the rotating groove is annular in a cross section perpendicular to the axis of the second rotating wheel; a limiting tube is provided on the housing, the axis of the limiting tube is collinear with the axis of the second threaded hole, and the limiting tube passes through the rotating groove.

[0015] In some embodiments that may include the above-described embodiments, the disassembly fixture further includes a drive motor, which is kinetically connected to the rotating rod.

[0016] The disassembly fixture for a double-ended stud provided in this embodiment of the invention includes a housing and a first rotating wheel and a second rotating wheel disposed on the housing. The first rotating wheel has a first threaded hole and rotates around the axis of the first threaded hole. The second rotating wheel has a second threaded hole, the axis of which is collinear with that of the first threaded hole, and the two threaded holes have the same direction of rotation. The first and second threaded holes are used for threaded connection with the double-ended stud. The second rotating wheel rotates around the axis of the second threaded hole, and the rotation direction of the second rotating wheel is opposite to that of the first rotating wheel. When rotating, the second rotating wheel also moves toward the first rotating wheel so that the second rotating wheel abuts against the first rotating wheel. With the above configuration, the first rotating wheel rotates in place around the axis of the first threaded hole, while the second rotating wheel rotates around the axis of the second threaded hole and moves towards the first rotating wheel along the axis of the second threaded hole until it comes into contact with the first rotating wheel. At this point, the first rotating wheel, the second rotating wheel, and the double-ended stud form a whole. When the first rotating wheel continues to rotate, the first rotating wheel, the second rotating wheel, and the double-ended stud rotate as a whole along the screw-out direction of the double-ended stud until the screw-in end of the double-ended stud is screwed out of the base part. The whole process only requires rotating the first rotating wheel and the second rotating wheel, making the operation simple. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the disassembly fixture for the double-ended stud provided in an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 A schematic diagram of the disassembly fixture for the double-ended stud provided in an embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is a front view of the disassembly fixture for the double-ended stud provided in an embodiment of the present invention;

[0021] Figure 4 This is a top view of the disassembly fixture for the double-ended stud provided in an embodiment of the present invention;

[0022] Figure 5 for Figure 4 Sectional view along the AA direction.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Shell;

[0025] 20. The first gear;

[0026] 30. The second gear;

[0027] 101. Reserved hole;

[0028] 102. Disassembly hole;

[0029] 201. First threaded hole;

[0030] 301, Second threaded hole;

[0031] 401. Rotating rod;

[0032] 402. Rotating block;

[0033] 403. Fixing groove;

[0034] 404, the third gear;

[0035] 405. The fourth gear;

[0036] 406. The fifth gear. Detailed Implementation

[0037] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0038] Secondly, it should be noted that in the description of the embodiments of the present invention, the terms "inner" and "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0039] Furthermore, it should be noted that, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Double-ended studs are used to connect base parts and connected parts. The double-ended stud has a screw-in end and a fastening end. The base part has a screw hole, and the connected part has a connection hole. When using a double-ended stud to connect the base part and the connected part, first screw the screw-in end into the screw hole, then insert the double-ended stud into the connection hole, and extend the fastening end to the outside of the connected part. Finally, connect the nut to the fastening end to achieve the connection between the base part and the connected part.

[0042] When removing a stud from a base part, pliers are typically used to clamp and rotate the stud until it is unscrewed. However, pliers can easily damage the threads of the stud while clamping and rotating it, rendering the stud unusable.

[0043] Related technologies also utilize disassembly tools to remove the studded head from the base component. These tools include a double-ended nut and a locking bolt. One end of the double-ended nut has a first threaded hole, and the other end has a second threaded hole. The axes of the first and second threaded holes are collinear, and their directions of rotation are opposite. The first threaded hole mates with the fastening end, and the second threaded hole mates with the locking bolt. When using the disassembly tool, first screw the fastening end into the first threaded hole, then screw the locking bolt into the second threaded hole until the locking bolt abuts against the fastening end. Continuing to rotate the locking bolt causes it to rotate the studded head through the double-ended nut, until the studded head is unscrewed from the base component.

[0044] However, the relevant disassembly tools require first screwing the fastening end of the double-ended stud into the first threaded hole, and then screwing the locking bolt into the second threaded hole. Multiple tightening steps are required before the double-ended stud can be removed from the base part, making the operation process complicated and cumbersome.

[0045] This embodiment provides a disassembly fixture for a double-ended stud, which connects the fastening end of the double-ended stud to a first rotating wheel and a second rotating wheel. Then, the second rotating wheel is rotated so that it abuts against the first rotating wheel. At this point, the disassembly fixture and the double-ended stud form a whole. When the second rotating wheel is rotated further, the disassembly fixture and the double-ended stud rotate as a whole, so that the screw-in end of the double-ended stud is screwed out of the base part. The whole process only requires rotating the first rotating wheel and the second rotating wheel, making the operation simple.

[0046] like Figure 1-5 As shown, this embodiment provides a disassembly fixture for a double-ended stud. The disassembly fixture includes a housing 10, a first rotating wheel, and a second rotating wheel, which are rotatably mounted on the housing 10. The first rotating wheel has a first threaded hole 201, and the first rotating wheel can rotate around the axis of the first threaded hole 201.

[0047] Continue to refer to Figure 1 The housing 10 may be provided with a disassembly hole 102, which is directly opposite to the first threaded hole 201. The disassembly hole 102 is used for the double-ended stud to pass through.

[0048] The second rotating wheel is provided with a second threaded hole 301. The axis of the second threaded hole 301 is collinear with that of the first threaded hole 201, and the second threaded hole 301 and the first threaded hole 201 have the same direction of rotation. The first threaded hole 201 and the second threaded hole 301 are used for threaded connection with a double-ended stud. The second rotating wheel can rotate around the axis of the second threaded hole 301, and the direction of rotation of the second rotating wheel is opposite to that of the first rotating wheel. When rotating, the second rotating wheel also moves towards the first rotating wheel so that the second rotating wheel abuts against the first rotating wheel.

[0049] In this embodiment, the double-ended stud can have a screw-in end and a fastening end. The base part has a screw hole, and the part to be connected has a connecting hole. When using the double-ended stud to connect the base part and the part to be connected, first screw the screw-in end into the screw hole, then insert the double-ended stud into the connecting hole, and extend the fastening end to the outside of the part to be connected. Finally, connect the fastening nut to the fastening end to achieve the connection between the base part and the part to be connected.

[0050] When disassembling the stud, first remove the fastening nut on the fastening end, then remove the connected part from the stud. At this point, the stud is only connected to the base part. Insert the fastening end into the housing 10 through the disassembly hole 102, and then pass the fastening end sequentially through the first threaded hole 201 and the second threaded hole 301. Part of the fastening end is threaded into the first threaded hole 201, and part of the fastening end is threaded into the second threaded hole 301. After the fastening end is screwed into the first threaded hole 201 and the second threaded hole 301, there is a gap between the second rotating wheel and the first rotating wheel. Then rotate the first rotating wheel and the second rotating wheel, making the rotation directions of the first rotating wheel and the second rotating wheel opposite, and the rotation direction of the first rotating wheel is the same as the screw-out direction of the stud. Here, the screw-out direction of the stud refers to the rotation direction of the stud when it is screwed out of the base part. The first rotating wheel rotates in place around the axis of the first threaded hole 201, while the second rotating wheel rotates around the axis of the second threaded hole 301 and moves towards the first rotating wheel along the axis of the second threaded hole 301 until it comes into contact with the first rotating wheel. At this time, the first rotating wheel, the second rotating wheel, and the double-ended stud form a whole. When the first rotating wheel continues to rotate, the first rotating wheel, the second rotating wheel, and the double-ended stud rotate as a whole along the screw-out direction of the double-ended stud until the screw-in end of the double-ended stud is screwed out of the base part. The whole process only requires rotating the first rotating wheel and the second rotating wheel, which is simple to operate.

[0051] In some implementations, the first and second rotating wheels can be manually rotated to unscrew the double-ended stud from the base part.

[0052] In some other implementations, the disassembly fixture may also include a transmission mechanism, which may be mounted on the housing 10 and is connected to the first rotating wheel and the second rotating wheel to make the first rotating wheel and the second rotating wheel rotate.

[0053] Continue to refer to Figure 5For example, the first rotating wheel may include a first gear 20, and the second rotating wheel may include a second gear 30. In some embodiments, the transmission mechanism may include a rotating rod 401, a third gear 404, a fourth gear 405, and a fifth gear 406. The third gear 404 and the fourth gear 405 are mounted on the rotating rod 401 and rotate with the rotation of the rotating rod 401. The third gear 404 meshes with the second gear 30 to drive the second gear 30 to rotate. The fifth gear 406 is rotatably mounted on the housing 10 and meshes with the fourth gear 405. The first gear 20 meshes with the fifth gear 406, so that the first gear 20 and the fourth gear 405 rotate in the same direction, and the first gear 20 and the second gear 30 rotate in opposite directions. After the fastening end is screwed into the first threaded hole 201 and the second threaded hole 301, simply continue to rotate the rotating rod 401 to make the second gear 30 abut against the first gear 20 and to make the double-ended stud unscrew from the base part, which is convenient and quick.

[0054] In other embodiments, the transmission mechanism may include a first motor and a second motor. The first motor has a first drive wheel that meshes with a first gear 20 to drive the first gear 20 to rotate. The second motor has a second drive wheel that meshes with a second gear 30 to drive the second gear 30 to rotate. The rotation direction of the second gear 30 is opposite to that of the first gear 20. After the fastening end is screwed into the first threaded hole 201 and the second threaded hole 301, the first motor and the second motor are started, so that the second gear 30 abuts against the first gear 20, and the double-ended stud is unscrewed from the base part, which is convenient and quick.

[0055] Continue to refer to Figure 5 In the implementation of the transmission mechanism including a rotating rod 401, a third gear 404, a fourth gear 405 and a fifth gear 406, the end of the rotating rod 401 can extend outside the housing 10, so that the rotating rod 401 can be rotated by a tool such as a wrench.

[0056] Furthermore, a rotating block 402 may be provided at the end of the rotating rod 401. The rotating block 402 is used to cooperate with the wrench to prevent the wrench from directly acting on the rotating rod 401 and causing damage to the rotating rod 401.

[0057] The rotating block 402 can be hexagonal prism shaped, and the axis of the rotating block 402 can be collinear with the axis of the rotating rod 401. The hexagonal prism shaped rotating block 402 is convenient to cooperate with the wrench.

[0058] Continue to refer to Figure 5Furthermore, a fixing groove 403 can be provided on the side of the rotating block 402 facing away from the housing 10. The fixing groove 403 is used to cooperate with a wrench. Specifically, the fixing groove 403 can be a cubic groove to cooperate with a ratchet wrench. Of course, the fixing groove 403 can also be hexagonal prism to cooperate with a wrench with a hexagonal prism-shaped locking block.

[0059] In the implementation of the disassembly fixture including the rotating rod 401, the disassembly fixture may also include a drive motor, which is connected to the rotating rod 401 in a transmission manner to drive the rotating rod 401 to rotate automatically without relying on manual labor, which is more convenient and labor-saving.

[0060] In some embodiments, a limiting screw (not shown in the figure) may also be provided on the housing 10. The limiting screw is located on the side of the second rotating wheel away from the first rotating wheel. The limiting screw is threadedly connected to a portion of the second threaded hole 301 so that the second rotating wheel can move along the axis of the limiting screw while rotating. When the second rotating wheel abuts against the first rotating wheel, a portion of the second threaded hole 301 is still connected to the limiting screw to prevent the second rotating wheel from separating from the limiting screw.

[0061] In other embodiments, a rotating groove (not shown in the figure) may be provided on the side of the second rotating wheel away from the first rotating wheel. In a cross-section perpendicular to the axis of the second rotating wheel, the rotating groove is annular, and the axis of the rotating groove is collinear with the axis of the second threaded hole 301. Correspondingly, a limiting tube (not shown in the figure) may be provided on the housing 10. The axis of the limiting tube is collinear with the axis of the second threaded hole 301. The limiting tube passes through the rotating groove so that the second rotating wheel can move along the axis of the limiting screw while rotating. When the second rotating wheel abuts against the first rotating wheel, a portion of the limiting tube still passes through the rotating groove to prevent the second rotating wheel from separating from the limiting tube.

[0062] Continue to refer to Figure 2 , Figure 4 and Figure 5 In the implementation of setting a limit tube on the housing 10, a reserved hole 101 can also be provided on the housing 10. The reserved hole 101 is directly opposite to the second threaded hole 301. The reserved hole 101 is used to allow the fastening end to pass through when the fastening end of the double-ended screw is long.

[0063] The disassembly fixture for the double-ended stud in this embodiment includes a housing 10 and a first rotating wheel and a second rotating wheel disposed on the housing 10. The first rotating wheel is provided with a first threaded hole 201 and rotates around the axis of the first threaded hole 201. The second rotating wheel is provided with a second threaded hole 301, the axis of the second threaded hole 301 is collinear with that of the first threaded hole 201, and the rotation directions of the second threaded hole 301 and the first threaded hole 201 are the same. The first threaded hole 201 and the second threaded hole 301 are used for threaded connection with the double-ended stud. The second rotating wheel rotates around the axis of the second threaded hole 301, and the rotation direction of the second rotating wheel is opposite to that of the first rotating wheel. When rotating, the second rotating wheel also moves toward the first rotating wheel so that the second rotating wheel abuts against the first rotating wheel. With the above configuration, the first rotating wheel rotates in place around the axis of the first threaded hole 201, while the second rotating wheel rotates around the axis of the second threaded hole 301 and moves towards the first rotating wheel along the axis of the second threaded hole 301 until it comes into contact with the first rotating wheel. At this time, the first rotating wheel, the second rotating wheel, and the double-ended stud form a whole. When the first rotating wheel continues to rotate, the first rotating wheel, the second rotating wheel, and the double-ended stud rotate as a whole along the screw-out direction of the double-ended stud until the screw-in end of the double-ended stud is screwed out of the base part. The whole process only requires rotating the first rotating wheel and the second rotating wheel, which is simple to operate.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A disassembly tool for a double-ended stud, characterized in that, include: The housing includes a first rotating wheel and a second rotating wheel rotatably mounted on the housing. The first rotating wheel has a first threaded hole and rotates around the axis of the first threaded hole. The second rotating wheel is provided with a second threaded hole, the second threaded hole is collinear with the axis of the first threaded hole, and the second threaded hole and the first threaded hole have the same rotation direction. The second rotating wheel and the first rotating wheel have a gap along the axis of the first threaded hole. The first threaded hole and the second threaded hole are used for threaded connection with the fastening end of the double-ended stud. The disassembly fixture also includes a transmission mechanism, which is disposed on the housing and is connected to the first rotating wheel and the second rotating wheel in a transmission manner. The first rotating wheel includes a first gear, the second rotating wheel includes a second gear, and the transmission mechanism includes a rotating rod, a third gear, a fourth gear, and a fifth gear. The third gear and the fourth gear are mounted on the rotating rod, and the third gear meshes with the second gear. The fifth gear is rotatably mounted on the housing, and the fifth gear meshes with the fourth gear, while the first gear meshes with the fifth gear; The end of the rotating rod extends outside the housing; a rotating block is provided at the end of the rotating rod, the rotating block being used to cooperate with a wrench; After the fastening end of the double-ended stud is screwed into the first threaded hole and the second threaded hole, there is a gap between the second rotating wheel and the first rotating wheel. Then, the rotating rod is rotated in the screwing-out direction of the double-ended stud. The second rotating wheel rotates around the axis of the second threaded hole, and the rotation direction of the second rotating wheel is opposite to the rotation direction of the first rotating wheel. When the second rotating wheel rotates, it also moves toward the first rotating wheel so that the second rotating wheel abuts against the first rotating wheel. As the rotating rod continues to rotate in the direction of the double-ended stud's rotation, the disassembly fixture and the double-ended stud rotate as a whole in the direction of the double-ended stud's rotation until the screw-in end of the double-ended stud is screwed out of the base part.

2. The disassembly fixture for the double-ended stud according to claim 1, characterized in that, The rotating block has a fixing groove on the side opposite to the housing, and the fixing groove is used to cooperate with the wrench.

3. The disassembly fixture for the double-ended stud according to claim 2, characterized in that, The fixing groove is a cubic groove.

4. The disassembly fixture for the double-ended stud according to any one of claims 1-3, characterized in that, A limiting screw is provided on the housing. The limiting screw is located on the side of the second rotating wheel away from the first rotating wheel. The limiting screw is threadedly connected to a portion of the second threaded hole.

5. The disassembly fixture for the double-ended stud according to any one of claims 1-3, characterized in that, The second rotating wheel has a rotating groove on the side opposite to the first rotating wheel, and the rotating groove is annular in a cross section perpendicular to the axis of the second rotating wheel; A limiting tube is provided on the housing, the axis of the limiting tube is collinear with the axis of the second threaded hole, and the limiting tube passes through the rotating groove.

6. The disassembly fixture for the double-ended stud according to claim 1, characterized in that, The disassembly fixture also includes a drive motor, which is connected to the rotating rod in a transmission manner.

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