Bearing seat reamed bolt hole matching and positioning device

Abstract

The utility model relates to the technical field of road roller steering hinge devices, in particular to a bearing seat reamed bolt hole matching and positioning device which comprises a positioning axis, an upper bearing seat, a lower bearing seat and a hinge seat. The positions of the two hinge holes are determined by utilizing the distance between the first bolt hole and the third bolt hole of the upper bearing seat and the lower bearing seat and calculating the linear distance between the first bolt hole and the second bolt hole; and the positions of the other two hinge holes are determined by calculating the linear distance between the third bolt hole and the fourth bolt hole according to the distance between the second bolt hole and the fourth bolt hole, and compared with the prior art, the device can complete reamed bolt hole matching machining before assembly, so that the efficiency is improved, the cost is reduced, and the assembly precision is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of steering hinge device for road rollers, and in particular to a positioning device for the hinge bolt hole of a bearing seat. Background Technology

[0002] In the steering articulation device of a road roller, the upper and lower bearing seats are connected to the articulation seat via reamed bolts and ordinary bolts. The reamed bolts need to fit tightly against the hole wall to achieve shear-resistant positioning. Traditional methods require on-site fabrication of the reamed holes after assembly, which presents the following problems: limited operating space after assembly, requiring specialized equipment, and low processing efficiency; the components are already painted, and drilling will damage the surface coating, increasing rework costs; and it is difficult to guarantee the coaxiality and dimensional consistency of multiple holes, affecting positioning accuracy. Therefore, there is an urgent need for a bearing seat reamed bolt hole fitting and positioning device that can complete the reamed bolt hole fitting and processing before assembly, thereby improving efficiency, reducing costs, and ensuring assembly accuracy. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a bearing housing reamed bolt hole matching and positioning device, which can complete the reamed bolt hole matching processing before assembly, so as to improve efficiency, reduce cost and ensure assembly accuracy.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a positioning device for fitting the reamed bolt hole of a bearing seat, comprising:

[0005] The positioning axis includes a limiting post, a first positioning post, and a second positioning post. The limiting post has positioning end faces at both ends. The first positioning post is connected to the positioning end face, and the second positioning post is connected to the end of the first positioning post away from the positioning end face.

[0006] The upper bearing housing has a first stepped groove. The larger diameter of the first stepped groove matches one of the first positioning pins, and the smaller diameter of the stepped groove matches one of the second positioning pins. The top of the upper bearing housing has a first bolt hole and a second bolt hole, which are arranged diagonally.

[0007] The lower bearing housing has a second stepped groove. The larger diameter of the first stepped groove matches another first positioning post, and the smaller diameter of the stepped groove matches another second positioning post. The top of the upper bearing housing has a third bolt hole and a fourth bolt hole, which are arranged diagonally.

[0008] The hinge seat is provided with a fifth bolt hole and a sixth bolt hole that match the first bolt and the second bolt hole. The hinge seat is also provided with a seventh bolt hole and an eighth bolt hole that match the third bolt and the fourth bolt hole.

[0009] In the assembled state, the positioning shaft is assembled between the upper bearing housing and the lower bearing housing, and the first and second bolt holes of the upper bearing housing and the third and fourth bolt holes of the lower bearing housing are centrally symmetrical.

[0010] Furthermore, the second positioning pin is provided with an adjusting threaded hole, the upper bearing seat is provided with a first through hole that matches the adjusting threaded hole, and the lower bearing seat is provided with a second through hole that matches the adjusting threaded hole.

[0011] Furthermore, the positioning end face is circular, and the diameter of the positioning end face is larger than the diameter of the first positioning post.

[0012] Furthermore, the diameter of the limiting post is smaller than the diameter of the first positioning post.

[0013] Furthermore, in the assembled state, the distance between the first stepped groove 21 and the second stepped groove 31 is A, the distance between the two second positioning posts 13 is B, the distance of B is less than A, the distance between the larger end of the first stepped groove 21 and the larger end of the second stepped groove 31 is C, and the distance between the two first positioning posts 12 is D, the distance of D is less than C.

[0014] The beneficial effects of this utility model are as follows: by connecting the positioning shaft, upper bearing seat, lower bearing seat and hinge seat, the positions of the two hinge holes are determined by the distance between the first bolt hole and the third bolt hole of the upper bearing seat and the lower bearing seat and by calculating the straight distance between the first bolt hole and the second bolt hole. The positions of the remaining two hinge holes are determined by the distance between the second bolt hole and the fourth bolt hole and by calculating the straight distance between the third bolt hole and the fourth bolt hole. Compared with the prior art, this device can complete the machining of the hinge bolt holes before assembly, thereby improving efficiency, reducing costs and ensuring assembly accuracy. Attached Figure Description

[0015] Figure 1 A schematic diagram of the positioning shaft structure of a positioning device for a bearing seat hinge bolt hole according to a specific embodiment of this utility model;

[0016] Figure 2 This is a schematic diagram of the upper bearing seat structure for a positioning device that matches the hinged bolt hole of the bearing seat according to a specific embodiment of the present utility model.

[0017] Figure 3 A schematic diagram of a lower bearing seat structure for a positioning device for a bearing seat hinge bolt hole according to a specific embodiment of this utility model;

[0018] Figure 4 A schematic diagram of a hinged structure for a positioning device for a bearing seat hinged bolt hole, which is a specific embodiment of this utility model.

[0019] Figure 5This is a schematic diagram of the assembly state of a bearing seat hinge bolt hole matching positioning device according to a specific embodiment of the present utility model.

[0020] Figure 6 This is a schematic diagram of a positioning device for a bearing seat hinged bolt hole according to a specific embodiment of the present utility model.

[0021] Label Explanation

[0022] 1. Positioning shaft; 11. Limiting post; 111. Positioning end face; 12. First positioning post; 13. Second positioning post; 131. Adjusting threaded hole;

[0023] 2. Upper bearing housing; 21. First stepped groove; 22. First bolt hole; 23. Second bolt hole; 24. First through hole;

[0024] 3. Lower bearing housing; 31. Second stepped groove; 32. Third bolt hole; 33. Fourth bolt hole; 34. Second through hole;

[0025] 4. Hinge seat; 41. Fifth bolt hole; 42. Sixth bolt hole; 43. Seventh bolt hole; 44. Eighth bolt hole;

[0026] 5. A;

[0027] 6. B;

[0028] 7. C;

[0029] 8. D;

[0030] 9. Hinge hole. Detailed Implementation

[0031] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0032] Please refer to Figures 1 to 6 A positioning device for a bearing housing hinge bolt hole includes:

[0033] The positioning shaft 1 includes a limiting post 11, a first positioning post 12, and a second positioning post 13. The limiting post 11 has positioning end faces 111 at both ends. The first positioning post 12 is connected to the positioning end face 111, and the second positioning post 13 is connected to the end of the first positioning post 12 that is away from the positioning end face 111.

[0034] The upper bearing housing 2 is provided with a first stepped groove 21. The larger diameter of the first stepped groove 21 matches one of the first positioning posts 12, and the smaller diameter of the stepped groove matches one of the second positioning posts 13. The top of the upper bearing housing 2 is provided with a first bolt hole 22 and a second bolt hole 23, which are arranged diagonally.

[0035] The lower bearing seat 3 is provided with a second stepped groove 31. The larger diameter of the first stepped groove 21 matches another first positioning post 12, and the smaller diameter of the stepped groove matches another second positioning post 13. The top of the upper bearing seat 2 is provided with a third bolt hole 32 and a fourth bolt hole 33, which are arranged diagonally.

[0036] The hinge seat 4 is provided with a fifth bolt hole 41 and a sixth bolt hole 42 that match the first bolt and the second bolt hole 23. The hinge seat 4 is also provided with a seventh bolt hole 43 and an eighth bolt hole 44 that match the third bolt and the fourth bolt hole 33.

[0037] In the assembled state, the positioning shaft 1 is assembled between the upper bearing housing 2 and the lower bearing housing 3, and the first bolt hole 22 and the second bolt hole 23 of the upper bearing housing 2 and the lower bearing housing 3 are centrally symmetrical with the third bolt hole 32 and the fourth bolt hole 33.

[0038] In the above embodiments, the first positioning post 12 and the second positioning post 13 at one end of the positioning shaft 1 are matched with the first stepped groove 21, and the first positioning post 12 and the second positioning post 13 at the other end of the positioning shaft 1 are matched with the second stepped groove 31. Then, the third screw hole of the hinge seat 4 is aligned with the first screw hole, and the fourth screw hole is aligned with the second screw hole. Then, the hinge seat 4 is locked with the upper bearing seat 2 and the lower bearing seat 3 by four screws. Then, the positions of the two hinge holes 9 are determined by calculating the distance between the first bolt hole 22 and the third bolt hole 32 and the straight distance between the first bolt hole 22 and the second bolt hole 23. The positions of the remaining two hinge holes 9 are determined by calculating the distance between the second bolt hole 23 and the fourth screw hole and the straight distance between the third bolt hole 32 and the fourth bolt hole 33.

[0039] As an optional implementation, the second positioning post 13 is provided with an adjusting threaded hole 131, the upper bearing seat 2 is provided with a first through hole 24 that matches the adjusting threaded hole 131, and the lower bearing seat 3 is provided with a second through hole 34 that matches the adjusting threaded hole 131.

[0040] In the above embodiments, before locking the upper bearing seat 2, lower bearing seat 3 and hinge seat 4 with four bolts, the adjusting bolts are passed through the first through hole 24 and the adjusting threaded hole 131 in sequence, so that the end face of the upper bearing seat 2 is in contact with the positioning end face 111 of one end of the limiting post 11. Then, the adjusting bolts are passed through the second through hole 34 and the adjusting threaded hole 131 in sequence, so that the end face of the lower bearing seat 3 is in contact with the positioning end face 111 of the other end of the limiting post 11, thereby ensuring the coaxial installation of the upper and lower bearing seats 3.

[0041] As an optional implementation, the positioning end face 111 is circular, and the diameter of the positioning end face 111 is larger than the diameter of the first positioning post 12.

[0042] In the above embodiments, in order to make the positioning end face 111 fit and cooperate with the end faces of the upper and lower bearing seats 3.

[0043] As an optional implementation, the diameter of the limiting post 11 is smaller than the diameter of the first positioning post 12.

[0044] The above embodiments are designed to reduce weight and make the small diameter easier to handle.

[0045] As an optional implementation, in the assembled state, the distance between the first stepped groove 21 and the second stepped groove 31 is A5, the distance between the two second positioning posts 13 is B6, the distance of B6 is less than A5, the distance between the larger end of the first stepped groove 21 and the larger end of the second stepped groove 31 is C7, and the distance between the two first positioning posts 12 is D8, the distance of D8 is less than C7.

[0046] In the above embodiments, by setting the distance of B6 to be less than A5 and the distance of D8 to be less than C7, the end face of the upper bearing seat 2 can be made to fit with the positioning end face 111, and the end face of the lower bearing seat 3 can be made to fit with the positioning end face 111, thus ensuring coaxial installation.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A chaser for positioning a bolt hole in a bearing block, comprising: include: The positioning axis includes a limiting post, a first positioning post, and a second positioning post. The limiting post has positioning end faces at both ends. The first positioning post is connected to the positioning end face, and the second positioning post is connected to the end of the first positioning post away from the positioning end face. The upper bearing housing has a first stepped groove. The larger diameter of the first stepped groove matches one of the first positioning pins, and the smaller diameter of the stepped groove matches one of the second positioning pins. The top of the upper bearing housing has a first bolt hole and a second bolt hole, which are arranged diagonally. The lower bearing housing has a second stepped groove. The larger diameter of the first stepped groove matches another first positioning post, and the smaller diameter of the stepped groove matches another second positioning post. The top of the upper bearing housing has a third bolt hole and a fourth bolt hole, which are arranged diagonally. The hinge seat is provided with a fifth bolt hole and a sixth bolt hole that match the first bolt and the second bolt hole. The hinge seat is also provided with a seventh bolt hole and an eighth bolt hole that match the third bolt and the fourth bolt hole. In the assembled state, the positioning shaft is assembled between the upper bearing housing and the lower bearing housing, and the first and second bolt holes of the upper bearing housing and the third and fourth bolt holes of the lower bearing housing are centrally symmetrical.

2. A positioning device for a hinge bolt hole of a bearing seat according to claim 1, characterized in that, The second positioning pin is provided with an adjusting threaded hole, the upper bearing seat is provided with a first through hole that matches the adjusting threaded hole, and the lower bearing seat is provided with a second through hole that matches the adjusting threaded hole.

3. A positioning device for machined bolt holes of bearing seats according to claim 1, characterized in that, The positioning end face is circular, and the diameter of the positioning end face is larger than the diameter of the first positioning post.

4. A positioning device for machined bolt holes of bearing seats according to claim 1, characterized in that, The diameter of the limiting post is smaller than the diameter of the first positioning post.

5. A bearing seat hinge bolt hole fitting positioning device according to claim 2, characterized in that, In the assembled state, the distance between the first and second stepped grooves is A, the distance between the two second positioning posts is B, B is less than A, the distance between the larger diameter end of the first stepped groove and the larger diameter end of the second stepped groove is C, and the distance between the two first positioning posts is D, D is less than C.

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