Anti-rotation counter-force device for tightening transverse connecting bolt of frame balance seat

Abstract

The utility model belongs to the technical field of bolt tightening devices, and particularly relates to a frame balance seat transverse connecting bolt tightening anti-rotation counter-force device which comprises a tightening shaft, a tightening sleeve and an anti-rotation assembly. The output end of the tightening shaft is connected with the tightening sleeve to drive the tightening sleeve to rotate, the tightening sleeve is connected to a to-be-screwed nut in a sleeving mode to drive the to-be-screwed nut to rotate synchronously, the to-be-screwed nut is connected to a to-be-screwed bolt in a threaded mode, the tightening shaft is connected with an anti-rotation assembly, and the anti-rotation assembly comprises a guide shaft, a connecting plate movably arranged on the guide shaft and a rotation stopping sleeve. The rotation stopping sleeve is used for being connected to a bolt head of a to-be-screwed bolt in a sleeving mode, the rotation stopping sleeve is fixed to the connecting plate, and the connecting plate drives the rotation stopping sleeve to move along the guiding shaft to be close to or away from the to-be-screwed bolt. The tightening shaft and the rotation stopping device are integrated; the counter-force problem needing to be overcome by the single-shaft tightening machine is solved, and a nut rotation stopping device is omitted; the production efficiency is improved, the labor intensity is reduced, the operation and the use are convenient, and meanwhile, the safety in the tightening process is also ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of bolt tightening devices, specifically relating to a device for tightening transverse connecting bolts of a vehicle frame balance seat to prevent rotation reaction force. Background Technology

[0002] When tightening the existing frame balance seat connecting bolts (nuts), it is done manually or by inserting a wrench into the head of the connecting bolt, while an anti-rotation tool is inserted into the nut to overcome the reaction force and tighten it.

[0003] Currently, existing technologies have several drawbacks when tightening the connecting bolts (nuts) of the frame balance seat. These include the difficulty of operating a manual pneumatic wrench due to the limited space, the need for anti-rotation tools for the nuts when tightening the connecting bolts, and the lack of reliable counterforce, making it difficult to guarantee the required tightening torque. As a result, production efficiency is relatively low and labor intensity is relatively high. Summary of the Invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a device for preventing rotation and reacting force when tightening the transverse connecting bolts of the frame balance seat, by adding an auxiliary device to the tightening shaft, so that the tightening shaft and the anti-rotation device are integrated into one unit.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a device for preventing rotation during the tightening of transverse connecting bolts of a vehicle frame balance seat, comprising a tightening shaft, a tightening sleeve, and an anti-rotation component; the output end of the tightening shaft is connected to the tightening sleeve to drive the tightening sleeve to rotate, the tightening sleeve is sleeved on the nut to be tightened and drives it to rotate synchronously, the nut to be tightened is threadedly connected to the bolt to be tightened, the tightening shaft is connected to the anti-rotation component, the anti-rotation component includes a guide shaft, a connecting plate, and an anti-rotation sleeve, the connecting plate is movably disposed on the guide shaft, the anti-rotation sleeve is fixed on the connecting plate, the anti-rotation sleeve is used to sleeve on the bolt head of the bolt to be tightened, the connecting plate drives the anti-rotation sleeve to move along the guide shaft, closer to or away from the bolt to be tightened.

[0006] Furthermore, a baffle is provided at the end of the guide shaft, and a spring is fitted on the guide shaft, with one end of the spring abutting against the baffle and the other end of the spring abutting against the connecting plate.

[0007] Furthermore, one end of the connecting plate is provided with a connecting hole, and the connecting plate is sleeved on the outer wall of the guide shaft through the connecting hole. The connecting plate is rotatably mounted on the guide shaft and can be linearly displaced along the guide shaft. The connecting plate is provided with a pull ring, and the connecting plate is moved by operating the pull ring.

[0008] Furthermore, the anti-rotation sleeve is embedded in the connecting plate and fixed by fastening bolts.

[0009] Furthermore, a mounting bracket is fixedly connected to the tightening shaft housing, and the guide shaft is connected to the mounting bracket via a support.

[0010] Furthermore, the guide shaft is located above the bolt to be tightened, and the axis of the guide shaft is parallel to the center of the bolt to be tightened.

[0011] Furthermore, the output end of the tightening shaft is fixedly connected to one end of the extension rod, the extension rod extends into the balance seat of the frame, and the other end of the extension rod is fixedly connected to the tightening sleeve.

[0012] Furthermore, the nut to be tightened is a hexagonal nut, and the inner wall of the tightening sleeve matches the shape of the nut to be tightened. The bolt to be tightened is a hexagonal bolt, and the bolt head of the bolt to be tightened is a hexagonal prism. The inner wall of the anti-rotation sleeve matches the shape of the bolt head of the bolt to be tightened.

[0013] Furthermore, a lifting rod is connected to the mounting bracket outside the tightening shaft, and a lifting ring is provided at the top of the lifting rod. The tightening shaft is suspended by the lifting rod and the lifting ring. By moving the tightening shaft, the tightening sleeve is fitted onto the nuts to be tightened at different positions.

[0014] Furthermore, the tightening shaft has a built-in drive motor, which outputs torque.

[0015] The beneficial effects of this utility model are as follows: The bolt tightening anti-rotation reaction force device of this utility model integrates the tightening shaft and the anti-rotation device into one unit; it not only solves the reaction force problem that a single shaft tightening machine needs to overcome, but also eliminates the need for a nut anti-rotation device; it improves production efficiency, reduces labor intensity, facilitates operation and use, and ensures the safety of the tightening process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the bolt tightening anti-rotation reaction force device of this utility model;

[0017] Figure 2 for Figure 1 The right view;

[0018] Figure 3 This is a diagram showing the usage state of the bolt tightening anti-rotation reaction force device of this utility model;

[0019] In the diagram: 1. Frame, 2. Balance seat, 3. Extension rod, 4. Tightening sleeve, 5. Nut to be tightened, 6. Bolt to be tightened, 7. Anti-rotation sleeve, 8. Connecting plate, 9. Pull ring, 10. Guide shaft, 11. Bracket, 12. Mounting bracket, 13. Tightening shaft, 14. Control box, 15. Lifting rod, 16. Lifting ring, 17. Spring, 18. Baffle. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] See appendix Figure 1-3 A device for preventing rotation during the tightening of transverse connecting bolts of a vehicle frame balance seat includes a tightening shaft 13, a tightening sleeve 4, and an anti-rotation component. The output end of the tightening shaft 13 is connected to the tightening sleeve 4, driving the tightening sleeve 4 to rotate. The tightening sleeve 4 is sleeved on a nut 5 to be tightened, causing it to rotate synchronously. The nut 5 to be tightened is threadedly connected to a bolt 6 to be tightened. The tightening sleeve 4 drives the nut 5 to rotate, tightening or loosening it from the bolt 6. A mounting bracket 12 is fixedly connected to the housing of the tightening shaft 13. The anti-rotation component is connected to the mounting bracket 12. The anti-rotation component includes a guide shaft 10, a connecting plate 8 movably disposed on the guide shaft 10, and an anti-rotation sleeve 7. The anti-rotation sleeve 7 is used to sleeve on the bolt head of the bolt 6 to be tightened. The anti-rotation sleeve 7 is fixed on the connecting plate 8. The connecting plate 8 drives the anti-rotation sleeve 7 to rotate or move horizontally along the guide shaft 10, moving closer to or away from the bolt 6 to be tightened.

[0022] Furthermore, a baffle 18 is provided at the end of the guide shaft 10, and a spring 17 is fitted on the guide shaft 10. One end of the spring 17 abuts against the baffle 18, and the other end of the spring 17 abuts against the connecting plate 8. When the spring 17 is in a compressed state, and the anti-rotation sleeve 7 is fitted onto the bolt 6 to be tightened, the spring 17 can provide a certain preload to prevent the anti-rotation sleeve 7 from disengaging from the bolt 6. When the connecting plate 8 is moved horizontally to separate the anti-rotation sleeve 7 from the bolt 6, the spring 17 can also quickly reset the connecting plate 8.

[0023] Furthermore, one end of the connecting plate 8 has a connecting hole, through which the connecting plate 8 is sleeved onto the outer wall of the guide shaft 10. The connecting plate 8 is rotatably mounted on the guide shaft 10 and can move linearly along the guide shaft 10. A pull ring is provided on the connecting plate, which is used to move the connecting plate. The connecting hole and the guide shaft 10 are clearance-fitted to ensure that the connecting plate 8 can rotate and move linearly on the guide shaft 10, and also to facilitate the quick alignment of the anti-rotation sleeve 7 and the bolt 6 to be tightened.

[0024] Furthermore, in order to ensure the installation stability of the anti-rotation sleeve 7, the anti-rotation sleeve 7 is embedded into the connecting plate 8 and fixed by fastening bolts.

[0025] Furthermore, the guide shaft 10 is connected to the mounting bracket 12 via a bracket 11, and the guide shaft 10 and the bracket 11 are detachably connected by bolts. The bracket 11 is coaxially arranged with the guide shaft 10, and the length of the bracket 11 is designed according to the size of the frame balance seat 2, so that the anti-rotation sleeve 7 in the connecting plate 8 can contact and assemble with the bolt 6 to be tightened on the frame balance seat 2.

[0026] Furthermore, the guide shaft 10 is located above the bolt 6 to be tightened, and the axis of the guide shaft 10 is parallel to the center of the bolt 6 to be tightened.

[0027] Furthermore, the output end of the tightening shaft 13 is fixedly connected to one end of the extension rod 3, the extension rod 3 extends into the frame balance seat 2, and the other end of the extension rod 3 is fixedly connected to the tightening sleeve 4. The extension rod 3 and the tightening sleeve 4 are coaxially arranged, and the length of the extension rod 3 is designed according to the size of the frame balance seat 2, so that the tightening sleeve 4 can contact and assemble with the nut 5 to be tightened on the frame balance seat 2.

[0028] Furthermore, the nut 5 to be tightened is a hexagonal nut, and the inner wall of the tightening sleeve 4 matches the shape of the nut 5 to be tightened. The bolt 6 to be tightened is a hexagonal bolt, and the bolt head of the bolt 6 to be tightened is a hexagonal prism. The inner wall of the anti-rotation sleeve 7 matches the shape of the bolt head of the bolt 6 to be tightened. The original nut 5 and bolt 6 to be tightened on the frame balance seat 2 are both hexagonal structures. The inner wall of the tightening sleeve 4 matches the shape of the nut 5 to be tightened, preventing relative rotation between the tightening sleeve 4 and the nut 5 to be tightened; the inner wall of the anti-rotation sleeve 7 matches the shape of the bolt head of the bolt 6 to be tightened, preventing relative rotation between the anti-rotation sleeve 7 and the bolt 6 to be tightened.

[0029] Furthermore, a lifting rod 15 is connected to the mounting bracket 12 outside the tightening shaft 13. A lifting ring 16 is provided at the top of the lifting rod 15. The tightening shaft 13 is suspended by the lifting rod 15 and the lifting ring 16 for easy movement. By moving the tightening shaft 13, the tightening sleeve 4 is fitted onto the nuts to be tightened at different positions.

[0030] Furthermore, the tightening shaft 13 has a built-in drive motor, which outputs torque and transmits it to the output shaft and extension rod 3 via a reduction gearbox. In this embodiment, the tightening shaft 13 is a Matou EAD440-250 output shaft.

[0031] Furthermore, the tightening shaft 13 is provided with an operation box 14, and the tightening shaft can be started and stopped by buttons on the operation box 14.

[0032] Operating procedure: When tightening the frame balance seat connecting bolt 6, manually drag the tightening shaft 13 to allow the tightening sleeve 4 to enter the nut 5 to be tightened, pull open the pull ring 9, and allow the anti-rotation sleeve 7 on the connecting plate 8 to be fitted onto the head of the bolt 6 to be tightened; press the start button to tighten the bolt 6 to be tightened. After the tightening is completed and qualified, pull open the connecting plate 8 to allow the connecting plate 8 to rotate upward; thus completing the tightening process of a set of balance seat transverse connecting bolts.

[0033] It should be noted that the parts of this utility model not described in detail are existing technologies.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0039] The above-listed embodiments are merely preferred embodiments of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A device for preventing rotational force during tightening of the transverse connecting bolts of a vehicle frame balance seat, characterized in that: The device includes a tightening shaft, a tightening sleeve, and an anti-rotation assembly. The output end of the tightening shaft is connected to the tightening sleeve, driving the tightening sleeve to rotate. The tightening sleeve is fitted onto the nut to be tightened, causing it to rotate synchronously. The nut to be tightened is threaded onto the bolt to be tightened. The tightening shaft is connected to an anti-rotation assembly, which includes a guide shaft, a connecting plate, and an anti-rotation sleeve. The connecting plate is movably mounted on the guide shaft, and the anti-rotation sleeve is fixed to the connecting plate. The anti-rotation sleeve is used to fit onto the bolt head of the bolt to be tightened. The connecting plate drives the anti-rotation sleeve to move along the guide shaft, moving closer to or away from the bolt to be tightened.

2. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: A baffle is provided at the end of the guide shaft, and a spring is fitted on the guide shaft. One end of the spring abuts against the baffle, and the other end of the spring abuts against the connecting plate.

3. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: One end of the connecting plate is provided with a connecting hole. The connecting plate is sleeved on the outer wall of the guide shaft through the connecting hole. The connecting plate is rotatably mounted on the guide shaft and can move linearly along the guide shaft. The connecting plate is provided with a pull ring, and the connecting plate is moved by operating the pull ring.

4. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: The anti-rotation sleeve is embedded in the connecting plate and fixed by fastening bolts.

5. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: A mounting bracket is fixedly connected to the tightening shaft housing, and the guide shaft is connected to the mounting bracket via a support.

6. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: The guide shaft is located above the bolt to be tightened, and the axis of the guide shaft is parallel to the center of the bolt to be tightened.

7. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: The output end of the tightening shaft is fixedly connected to one end of the extension rod, the extension rod extends into the balance seat of the frame, and the other end of the extension rod is fixedly connected to the tightening sleeve.

8. The anti-rotation reaction force device for tightening the transverse connecting bolts of the frame balance seat according to claim 1, characterized in that: The nut to be tightened is a hexagonal nut, and the inner wall of the tightening sleeve matches the shape of the nut to be tightened. The bolt to be tightened is a hexagonal bolt, and the bolt head of the bolt to be tightened is a hexagonal prism. The inner wall of the anti-rotation sleeve matches the shape of the bolt head of the bolt to be tightened.

9. A device for preventing rotational force during tightening of the transverse connecting bolts of a vehicle frame balance seat according to any one of claims 1-8, characterized in that: A lifting rod is connected to the mounting bracket outside the tightening shaft. A lifting ring is set at the top of the lifting rod. The tightening shaft is suspended by the lifting rod and the lifting ring. By moving the tightening shaft, the tightening sleeve is fitted onto the nuts to be tightened at different positions.

10. A frame balance seat lateral connecting bolt tightening anti-rotation reaction force device according to any one of claims 1-8, characterized in that: The tightening shaft has a built-in drive motor, which outputs torque.

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