Metro vehicle wheel set press-fitting guide sleeve

Abstract

The utility model relates to wheel set press mounting technical field especially relates to a subway vehicle wheel set press mounting guide sleeve, including benchmark guide sleeve and wheel seat adapter, benchmark guide sleeve stretches into wheel seat adapter, benchmark guide sleeve is detachably connected with wheel seat adapter, and benchmark guide sleeve and wheel seat adapter are used for guiding wheel after assembly, wheel axle end part is equipped with wheel neck, and the wheel neck includes large diameter portion and small diameter portion, one end of large diameter portion is connected with wheel axle, and the other end of large diameter portion is connected with small diameter portion, after benchmark guide sleeve and wheel seat adapter assembly, wheel axle installs in wheel seat adapter, benchmark guide sleeve inside in proper order, after installation, wheel axle outside wall is flush with wheel seat adapter and sets up, large diameter portion outer wall and wheel seat adapter inner wall are pasted, small diameter portion outer wall and benchmark guide sleeve inner wall are pasted, realize the universal of wheel press mounting guide sleeve.

Description

Technical Field

[0001] This utility model relates to the field of wheelset pressing technology, and in particular to a guide sleeve for pressing wheelsets of subway vehicles. Background Technology

[0002] During the pressing process of A and B type subway wheelsets, there are various journal and wheel seat sizes, and wheelset pressing guide bushings need to be made separately according to the axle size of each type of vehicle.

[0003] The existing wheel press-fit guide sleeve tooling is unique, requiring a separate tooling configuration for each project, resulting in high costs. Furthermore, when multiple projects are produced on a mixed production line, frequent tooling changes further increase production costs.

[0004] Therefore, there is an urgent need to provide a universal wheel press-fit guide sleeve for subway vehicles, which, compared with existing technologies, achieves universality for wheel press-fit guide sleeves. Utility Model Content

[0005] This utility model solves the technical problems existing in the prior art and provides a guide sleeve for pressing the wheelset of a subway vehicle.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A guide sleeve for pressing a wheelset of a subway vehicle includes a reference guide sleeve and a wheel seat adapter. The reference guide sleeve extends into the wheel seat adapter and is detachably connected to it. After assembly, the reference guide sleeve and the wheel seat adapter are used to guide the wheel. The wheel axle end is provided with a wheel journal, which includes a large-diameter portion and a small-diameter portion. One end of the large-diameter portion is connected to the wheel axle, and the other end of the large-diameter portion is connected to the small-diameter portion. After the reference guide sleeve and the wheel seat adapter are assembled, the wheel axle is sequentially inserted into the wheel seat adapter and the reference guide sleeve for installation. After installation, the outer wall of the wheel axle is flush with the wheel seat adapter, the outer wall of the large-diameter portion fits against the inner wall of the wheel seat adapter, and the outer wall of the small-diameter portion fits against the inner wall of the reference guide sleeve.

[0007] Furthermore, the outer wall of the reference guide sleeve is provided with a first thread, and the inner wall of the wheel seat adapter is provided with a second thread, and the first thread and the second thread are connected by a mating thread.

[0008] Furthermore, the reference guide sleeve includes a disc and a first cylinder, with one end of the disc fixedly connected to the first cylinder, and the inner wall of the first cylinder having a first thread.

[0009] Furthermore, the disk is coaxially arranged with the first cylinder.

[0010] Furthermore, the first cylindrical section is integrally connected to the first rounded chamfer at the end furthest from the disk.

[0011] Furthermore, the first thread extends to the outer wall of the first arc chamfer.

[0012] Furthermore, the wheel seat adapter includes a second cylinder and a third cylinder, with one end of the second cylinder connected to the third cylinder, and the inner wall of the second cylinder having a second thread.

[0013] Furthermore, the second cylinder is connected to the third cylinder via a second rounded chamfer, and the inner diameter of the second cylinder is smaller than the inner diameter of the third cylinder.

[0014] Furthermore, the end of the third cylinder furthest from the second rounded chamfer is integrally connected to the third rounded chamfer.

[0015] Furthermore, the second and third cylinders are arranged coaxially.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention solves the problem of wheel and axle guidance during the pressing of A and B type subway wheelsets, allowing workshop operators to quickly and conveniently change tooling during mixed-line production. The ingenious and flexible structural design meets usage requirements in terms of strength and rigidity, solving the problem of universality of wheel pressing guide sleeves in the rail transit industry and enabling the pressing of multiple wheel and axle specifications to be completed using the same tooling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model and the assembly of the wheel and axle.

[0018] Figure 2 This is a cross-sectional view of the reference guide sleeve of this utility model.

[0019] Figure 3 This is a schematic diagram of the end face of the reference guide sleeve of this utility model.

[0020] Figure 4 This is a cross-sectional view of the wheel seat adapter of this utility model.

[0021] Figure 5 This is a schematic diagram of the end face of the wheel seat adapter of this utility model.

[0022] Explanation of reference numerals in the attached figures: 1. Reference guide sleeve; 11. Disc; 12. First cylinder; 13. First thread; 14. First rounded chamfer; 2. Wheel seat adapter; 21. Second cylinder; 22. Second rounded chamfer; 23. Third cylinder; 24. Third rounded chamfer; 25. Second thread; 3. Wheel axle; 31. Wheel journal; 32. Large diameter section; 33. Small diameter section. Detailed Implementation

[0023] The technical solution of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are not all embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," 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. They do not 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.

[0024] like Figure 1 As shown, this utility model provides a guide sleeve for pressing a wheelset of a subway vehicle, including a reference guide sleeve 1 and a wheel seat adapter 2. The reference guide sleeve 1 extends into the wheel seat adapter 2, and the reference guide sleeve 1 and the wheel seat adapter 2 are detachably connected. The wheel axle 3 has a wheel neck 31 at its end, which includes a large diameter portion 32 and a small diameter portion 33. One end of the large diameter portion 32 is connected to the wheel axle 3 by a rounded chamfer, and the other end of the large diameter portion 32 is connected to the small diameter portion 33 by a rounded chamfer. After the reference guide sleeve 1 and the wheel seat adapter 2 are assembled, the wheel axle 3 is installed by sequentially extending into the wheel seat adapter 2 and the reference guide sleeve 1. After installation, the outer wall of the wheel axle 3 is flush with the wheel seat adapter 2, the outer wall of the large diameter portion 32 is in contact with the inner wall of the wheel seat adapter 2, and the outer wall of the small diameter portion 33 is in contact with the inner wall of the reference guide sleeve 1.

[0025] like Figure 2 , Figure 3 As shown, the reference guide sleeve 1 includes a disc 11, a first cylinder 12, and a first arc chamfer 14. One end of the disc 11 is fixedly connected to the first cylinder 12. The first cylinder 12 and the disc 11 are coaxially arranged. The end of the first cylinder 12 away from the disc 11 is integrally connected to the first arc chamfer 14. The first arc chamfer 14 is flush with the outer wall of the first cylinder 12. The outer wall of the first cylinder 12 is provided with a first thread 13, which extends to the outer wall of the first arc chamfer 14.

[0026] The reference guide sleeve 1 is made of nylon. The preferred dimensions of the reference guide sleeve 1 are: the inner diameter of the disc 11 and the inner diameter (diameter) of the first cylinder 12 are preferably 130mm, the thickness of the disc 11 is 5mm, the radius of the first arc chamfer 14 is 40mm, the axial length of the first cylinder 12 is 155mm, and the axial length of the first arc chamfer 14 is 17mm.

[0027] like Figure 4 , Figure 5As shown, the wheel seat adapter 2 includes a second cylinder 21, a second rounded chamfer 22, a third cylinder 23, and a third rounded chamfer 24. One end of the second cylinder 21 is integrally connected to the second rounded chamfer 22, the other end of the second rounded chamfer 22 is integrally connected to the third cylinder 23, and the other end of the third cylinder 23 is integrally connected to the third rounded chamfer 24. The outer walls of the second cylinder 21, the second rounded chamfer 22, the third cylinder 23, and the third rounded chamfer 24 are all flush. The inner diameter of the second cylinder 21 is smaller than that of the third cylinder 23. The inner wall of the second cylinder 21 is provided with a second thread 25, which is threadedly connected to the first thread 13.

[0028] The wheel seat adapter 2 is made of nylon. The preferred dimensions of the wheel seat adapter 2 are as follows: the inner diameter (diameter) of the second cylinder 21 is 150mm and the outer diameter is 196mm. The axial length of the second cylinder 21 is 170mm. The axial length of the third cylinder 23 is 67mm. The overall axial length of the wheel seat adapter 2 is 280mm. The radii of the second rounded chamfer 22 and the third rounded chamfer 24 are both 40mm.

[0029] The working principle of the guide sleeve for pressing wheelsets in subway vehicles provided by this utility model is as follows: The first cylinder 12 of the reference guide sleeve 1 extends into the wheel seat adapter 2 and is threadedly connected by the first thread 13 and the second thread 25, so that the reference guide sleeve 1 and the wheel seat adapter 2 can be detachably connected and combined into an integral guide structure. When pressing wheelsets, this utility model is fitted into the wheel neck 31 to guide the wheel. The large diameter part 32 fits against the inner wall of the third cylinder 23, and the small diameter part 33 fits against the inner wall of the first cylinder 12. The outer wall of the disc 11, the outer wall of the wheel seat adapter 2, and the outer wall of the axle 3 are flush. The outer diameter of the wheel seat adapter 2 can be customized according to different wheel seat sizes while keeping other dimensions unchanged to adapt to the product size. The size of the reference guide sleeve 1 does not need to be changed.

[0030] This invention solves the problem of wheel and axle guidance during the pressing of A and B type subway wheelsets, allowing workshop operators to quickly and conveniently change tooling during mixed-line production. The ingenious and flexible structural design meets usage requirements in terms of strength and rigidity, solving the problem of universality of wheel pressing guide sleeves in the rail transit industry and enabling the pressing of multiple wheel and axle specifications to be completed using the same tooling.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A guide sleeve for pressing onto wheelsets of subway vehicles, characterized in that, The device includes a reference guide sleeve and a wheel seat adapter. The reference guide sleeve extends into the wheel seat adapter, and the reference guide sleeve and the wheel seat adapter are detachably connected. After assembly, the reference guide sleeve and the wheel seat adapter are used to guide the wheel. The wheel axle end is provided with a wheel journal, which includes a large-diameter part and a small-diameter part. One end of the large-diameter part is connected to the wheel axle, and the other end of the large-diameter part is connected to the small-diameter part. After the reference guide sleeve and the wheel seat adapter are assembled, the wheel axle is installed by sequentially extending into the wheel seat adapter and the reference guide sleeve. After installation, the outer wall of the wheel axle is flush with the wheel seat adapter, the outer wall of the large-diameter part is in contact with the inner wall of the wheel seat adapter, and the outer wall of the small-diameter part is in contact with the inner wall of the reference guide sleeve.

2. The guide sleeve for pressing a subway vehicle wheelset according to claim 1, characterized in that, The outer wall of the reference guide sleeve is provided with a first thread, and the inner wall of the wheel seat adapter is provided with a second thread. The first thread and the second thread are connected by a mating thread.

3. The guide sleeve for pressing a subway vehicle wheelset according to claim 2, characterized in that, The reference guide sleeve includes a disc and a first cylinder. One end of the disc is fixedly connected to the first cylinder, and the inner wall of the first cylinder is provided with a first thread.

4. The guide sleeve for pressing a subway vehicle wheelset according to claim 3, characterized in that, The disk is coaxially arranged with the first cylinder.

5. A guide sleeve for pressing a subway vehicle wheelset according to claim 3, characterized in that, The first cylindrical section is integrally connected to the first rounded chamfer at the end furthest from the disk.

6. A guide sleeve for pressing a subway vehicle wheelset according to claim 5, characterized in that, The first thread extends to the outer wall of the first rounded chamfer.

7. A guide sleeve for pressing a subway vehicle wheelset according to claim 2, characterized in that, The wheel seat adapter includes a second cylinder and a third cylinder. One end of the second cylinder is connected to the third cylinder, and the inner wall of the second cylinder is provided with a second thread.

8. A guide sleeve for pressing a subway vehicle wheelset according to claim 7, characterized in that, The second cylinder is connected to the third cylinder by a second rounded chamfer, and the inner diameter of the second cylinder is smaller than the inner diameter of the third cylinder.

9. A guide sleeve for pressing a subway vehicle wheelset according to claim 8, characterized in that, The end of the third cylinder furthest from the second rounded chamfer is integrally connected to the third rounded chamfer.

10. A guide sleeve for pressing a subway vehicle wheelset according to claim 9, characterized in that, The second and third cylinders are arranged coaxially.

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