Built-in pneumatic wheel pair turntable steering limiting mounting seat

Abstract

The utility model relates to the technical field of wheel set rotating discs, in particular to a built-in pneumatic wheel set rotating disc steering limiting installation seat which comprises a wheel set rotating disc device, the bottom end of the wheel set rotating disc device is mechanically connected with an installation mechanism and penetrates into the wheel set rotating disc device, and the bottom end of the installation mechanism is slidably connected with a limiting mechanism. And the through holes penetrate into the mounting mechanism. The wheel set turntable device can be conveniently mounted and connected on the base through mutual matching of internal parts of the mounting mechanism, the supporting strength of the base and the supporting cylinder is improved, and the wheel set turntable device can conveniently drive railway wheels to rotate on the base to replace a track through mutual matching of internal parts of the limiting mechanism. And the rotation angle of the wheel set turntable device can be conveniently limited, so that the wheel set turntable device stops after rotating by 180 degrees, and the accurate control over the rotation angle of the wheel set turntable device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheelset turntable technology, specifically to a built-in pneumatic wheelset turntable steering limit mounting base. Background Technology

[0002] In modern life, railway wheelsets are an important component of rail transportation. After a period of use, railway wheelsets need to be repaired before being put back into service. During the repair process, due to the limitations of the work site, it is often necessary to replace the rails. When changing rails, a 90-degree or 180-degree turn is required. The wheelset turntables that are widely used now are built-in, that is, the diameter of the wheelset turntable is larger than the inner distance of the rail, the rail is fixed on the turntable, and the load-bearing point of the wheelset rotation is the tread.

[0003] A search revealed an invention patent with publication number CN108002300B, specifically disclosing a built-in pneumatic wheelset turntable, including a turntable body, a rotating cylinder, a guide wheel mechanism, and a guide cylinder. The outer wall of the rotating cylinder is fitted with a guide cylinder, which supports it on a fixed ground groove. A hook arm is located at the lower end of the rotating cylinder, with its lower end connected to a lower flange and its upper end connected to a sleeve. A nut is attached to the upper end of the sleeve. A cylinder is located outside the hook arm, with its upper end inserted into the guide cylinder and its lower end extending to the lower flange. An outer fixing ring is located on the outer wall of the guide cylinder, and the outer fixing ring is connected to the lower flange by double-ended bolts. A guide wheel mechanism is located on the outer side of the upper end of the rotating cylinder, and a turntable is located at the upper end of the rotating cylinder. The upper surface of the turntable has a patterned panel. This invention uses an external guide wheel design, with wind pressure as the power source, making maintenance convenient and the failure rate low. The operation is smooth and easy to control, facilitating the passage of wheelsets with gearboxes and brake discs. The turntable body has inspection holes for easy adjustment and maintenance.

[0004] Although the aforementioned patent employs an external guide wheel and uses air pressure as the power source, which makes maintenance convenient and reduces the failure rate, and provides smooth operation and easy passage for wheelsets with gearboxes and brake discs, and the turntable body is equipped with inspection holes for easy adjustment and maintenance, the lack of a limit mechanism inside the mounting base at the bottom of the turntable means that, during prolonged use, the unstable air pressure in the cylinders can cause the turntable to either not rotate to the correct position or rotate excessively, thus affecting the rotational accuracy of the turntable.

[0005] Therefore, it is necessary to propose a built-in pneumatic wheel set turntable steering limit mounting base to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a built-in pneumatic wheelset turntable steering limit mounting base. Through the mutual cooperation between the internal parts of the limit mechanism, it is convenient to limit the rotation angle of the wheelset turntable when it drives the railway wheel to rotate on the base to change the track. The wheelset turntable stops after rotating 180 degrees, thereby improving the precise control of the rotation angle of the wheelset turntable. This solves the problem in the prior art where the mounting base at the bottom of the turntable does not have a limit mechanism, which leads to unstable air pressure in the cylinder during long-term use, resulting in the turntable not rotating to the correct position or rotating too much, thus affecting the rotation accuracy of the turntable.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a built-in pneumatic wheel set turntable steering limit mounting base, including a wheel set turntable device, wherein the bottom end of the wheel set turntable device is mechanically connected to a mounting mechanism and extends through the interior of the wheel set turntable device, and the bottom end of the mounting mechanism is slidably connected to a limit mechanism and extends through the interior of the mounting mechanism.

[0008] The mounting mechanism includes a base, which is fixedly mounted below the wheelset turntable device. A support cylinder is machined at the top of the base, and a steering cylinder is rotatably connected to the top of the support cylinder.

[0009] The limiting mechanism includes a connecting ring, which is machined at the bottom end of the steering cylinder and rotatably connected to the inside of the support cylinder. A telescopic ring is slidably connected to the top end of the support cylinder and located at the bottom end of the steering cylinder. A support plate is machined at the bottom end of the telescopic ring. A telescopic spring is mechanically connected between the bottom end of the support plate and the inner wall of the support cylinder. Limiting posts are machined on both sides of the top end of the support plate and penetrate the support cylinder to the inside of the connecting ring. Multiple fixing posts are distributed between the limiting posts and are machined at the top end of the support plate and penetrate to the inside of the connecting ring.

[0010] Preferably, the mounting mechanism further includes reinforcing plates, and there are multiple reinforcing plates. The multiple reinforcing plates are machined around the outer wall of the support cylinder and located at the top of the base. The multiple reinforcing plates are mechanically connected by reinforcing ribs.

[0011] Preferably, the top end of the support cylinder and the bottom end of the steering cylinder are rotatably connected by ball bearings, and the outer wall of the steering cylinder is fixed to the bottom end of the wheelset turntable device by bolts.

[0012] Preferably, the outer wall of the reinforcing plate is machined with a flange hole that matches the external cylinder and extends through to the inner wall of the support cylinder. The outer wall of the reinforcing rib is trapezoidal in shape, and the thickness of the reinforcing plate and the reinforcing rib is 15mm.

[0013] Preferably, the top of the support cylinder is provided with a telescopic groove that matches the telescopic ring, and the inside of the support cylinder is provided with a support groove that matches the support plate, and the height of the limiting post is higher than that of the fixing post.

[0014] Preferably, the support cylinder has a rotating groove inside that matches the connecting ring, the bottom end of the connecting ring has a limiting hole that matches the limiting post and the fixing post, and an arc-shaped sliding groove that matches the limiting post is provided below the limiting hole. The sliding angle of the arc-shaped sliding groove is 180 degrees.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. The railway wheel moves to the top of the wheelset turntable device, causing the turntable device to sink and move under the action of gravity. This causes the steering cylinder to squeeze the telescopic ring, which in turn pushes the support plate to squeeze the telescopic spring and move. The movement of the support plate causes the limiting post and the fixed post to move, allowing the fixed post to move out of the limiting hole. Since the height of the limiting post is higher than that of the fixed post, it is easier for the limiting post to move from the limiting hole into the arc-shaped groove. When the wheelset turntable device drives the steering cylinder to rotate, the rotation of the steering cylinder causes the connecting ring to move out of the support cylinder. This causes the arc-shaped groove at the bottom of the connecting ring to rotate 180 degrees and fit into the limiting post, thus completing the rotation limit of the steering cylinder. This allows the wheelset turntable device to precisely rotate 180 degrees and then stop.

[0017] 2. The reinforcing plates and ribs machined on the outer walls of the base and support cylinder facilitate the improvement of the support strength between the base and the support cylinder. The outer walls of the reinforcing plates are machined with flange holes that match the external cylinder and extend to the inner wall of the support cylinder, facilitating the connection and fixation between the external cylinder and the reinforcing plates. The top of the support cylinder and the bottom of the steering cylinder are connected by ball bearings, facilitating the rotation of the steering cylinder at the top of the support cylinder. The outer walls of the reinforcing ribs are trapezoidal in shape, and the thickness of the reinforcing plates and ribs is 15mm, which helps to improve the support strength of the support cylinder. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the wheelset turntable device of this utility model;

[0021] Figure 3This is a cross-sectional structural diagram of the support cylinder and steering cylinder of this utility model;

[0022] Figure 4 This is an exploded cross-sectional view of the limiting post and connecting ring of this utility model;

[0023] Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Wheelset turntable device; 2. Mounting mechanism; 201. Base; 202. Support cylinder; 203. Steering cylinder; 204. Reinforcing plate; 205. Reinforcing rib; 3. Limiting mechanism; 301. Connecting ring; 302. Telescopic ring; 303. Support plate; 304. Telescopic spring; 305. Limiting post; 306. Fixing post. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The built-in pneumatic wheel set turntable steering limit mounting base shown includes a wheel set turntable device 1. The bottom end of the wheel set turntable device 1 is mechanically connected to a mounting mechanism 2, which extends into the interior of the wheel set turntable device 1. The bottom end of the mounting mechanism 2 is slidably connected to a limit mechanism 3, which also extends into the interior of the mounting mechanism 2.

[0028] The mounting mechanism 2 includes a base 201, which is fixedly mounted below the wheelset turntable device 1. A support cylinder 202 is machined on the top of the base 201, and a steering cylinder 203 is rotatably connected to the top of the support cylinder 202.

[0029] The limiting mechanism 3 includes a connecting ring 301, which is machined at the bottom end of the steering cylinder 203 and rotatably connected to the inside of the support cylinder 202. A telescopic ring 302 is slidably connected to the top end of the support cylinder 202 and is located at the bottom end of the steering cylinder 203. A support plate 303 is machined at the bottom end of the telescopic ring 302. A telescopic spring 304 is mechanically connected between the bottom end of the support plate 303 and the inner wall of the support cylinder 202. Limiting posts 305 are machined on both sides of the top end of the support plate 303 and penetrate through the support cylinder 202 to the inside of the connecting ring 301. Multiple fixing posts 306 are distributed between the limiting posts 305 and are machined at the top end of the support plate 303 and penetrate through to the inside of the connecting ring 301.

[0030] The mutual cooperation between the internal parts of the mounting mechanism 2 facilitates the installation and connection of the wheelset turntable device 1 on the base 201. The mutual cooperation between the internal parts of the limiting mechanism 3 facilitates the rotation angle of the wheelset turntable device 1 when it drives the railway wheel to rotate on the base 201 to change the track, so that the wheelset turntable device 1 stops after rotating 180 degrees, thereby improving the precise control of the rotation angle of the wheelset turntable device 1.

[0031] Refer to the instruction manual appendix Figure 1-5 The mounting mechanism 2 also includes reinforcing plates 204. There are multiple reinforcing plates 204, which are machined around the outer wall of the support cylinder 202 and located at the top of the base 201. The multiple reinforcing plates 204 are mechanically connected by reinforcing ribs 205. Through the mutual cooperation between the internal parts of the mounting mechanism 2, the connection strength between the base 201 and the support cylinder 202 is improved, thereby improving the support performance of the base 201.

[0032] Refer to the instruction manual appendix Figure 1-5 The top end of the support cylinder 202 and the bottom end of the steering cylinder 203 are rotatably connected by ball bearings. The outer wall of the steering cylinder 203 is fixed to the bottom end of the wheelset turntable device 1 by bolts. The ball bearing connection between the top end of the support cylinder 202 and the bottom end of the steering cylinder 203 facilitates the rotation of the wheelset turntable device 1, which drives the steering cylinder 203 to rotate at the top end of the support cylinder 202.

[0033] Refer to the instruction manual appendix Figure 1-5 The outer wall of the reinforcing plate 204 is machined with flange holes that match the external cylinder and extend to the inner wall of the support cylinder 202. The outer wall of the reinforcing rib 205 is trapezoidal in shape, and the thickness of the reinforcing plate 204 and the reinforcing rib 205 is 15mm. The flange holes that match the external cylinder are machined on the outer wall of the reinforcing plate 204 and extend to the inner wall of the support cylinder 202. The outer wall of the reinforcing rib 205 is trapezoidal in shape, and the thickness of the reinforcing plate 204 and the reinforcing rib 205 is 15mm. This facilitates the improvement of the support strength of the support cylinder 202 and makes it easier to connect the support cylinder 202 to the external cylinder.

[0034] Refer to the instruction manual appendix Figure 1-5 The top of the support cylinder 202 is provided with a telescopic groove that matches the telescopic ring 302, and the inside of the support cylinder 202 is provided with a support groove that matches the support plate 303. The height of the limiting post 305 is higher than that of the fixed post 306. The telescopic groove that matches the telescopic ring 302 is provided at the top of the support cylinder 202, and the support groove that matches the support plate 303 is provided inside the support cylinder 202, so that when the railway wheel moves to the top of the wheelset turntable device 1, the wheelset turntable device 1 will sink and move under the action of gravity, so that the steering cylinder 203 squeezes the telescopic ring 302.

[0035] Refer to the instruction manual appendix Figure 1-5 The support cylinder 202 has a rotating groove inside that matches the connecting ring 301. The bottom end of the connecting ring 301 has a limiting hole that matches the limiting post 305 and the fixing post 306. Below the limiting hole, there is an arc-shaped sliding groove that matches the limiting post 305. The sliding angle of the arc-shaped sliding groove is 180 degrees. The limiting hole at the bottom end of the connecting ring 301 matches the limiting post 305 and the fixing post 306. Below the limiting hole, there is an arc-shaped sliding groove that matches the limiting post 305. The sliding angle of the arc-shaped sliding groove is 180 degrees. This allows the limiting post 305 and the fixing post 306 to pass through the support cylinder 202 into the connecting ring 301, thus completing the rotational locking between the support cylinder 202 and the steering cylinder 203.

[0036] The working principle of this practical application is as follows:

[0037] Refer to the instruction manual appendix Figure 1-5 The railway wheel moves to the top of the wheelset turntable device 1, causing the wheelset turntable device 1 to sink and move under the action of gravity. This causes the steering cylinder 203 to squeeze the telescopic ring 302, which in turn pushes the support plate 303 to squeeze the telescopic spring 304 to contract and move. The movement of the support plate 303 causes the limiting post 305 and the fixed post 306 to move, allowing the fixed post 306 to move out of the limiting hole. Since the height of the limiting post 305 is higher than that of the fixed post 306, it is easier for the limiting post 305 to move from the limiting hole into the arc-shaped groove. When the wheelset turntable device 1 drives the steering cylinder 203 to rotate, the rotation of the steering cylinder 203 causes the connecting ring 301 to move out of the support cylinder 202. This causes the arc-shaped groove at the bottom of the connecting ring 301 to rotate 180 degrees and fit into the limiting post 305, thus completing the rotation limit of the steering cylinder 203. This allows the wheelset turntable device 1 to rotate precisely 180 degrees and then stop.

[0038] Refer to the instruction manual appendix Figure 1-5 The reinforcing plate 204 and reinforcing rib 205, machined on the outer wall of the base 201 and the support cylinder 202, facilitate the improvement of the support strength between the base 201 and the support cylinder 202. The outer wall of the reinforcing plate 204 is machined with a flange hole that matches the external cylinder and extends to the inner wall of the support cylinder 202, facilitating the connection and fixation between the external cylinder and the reinforcing plate 204. The top end of the support cylinder 202 and the bottom end of the steering cylinder 203 are connected by ball bearings, facilitating the rotation of the steering cylinder 203 at the top of the support cylinder 202. The outer wall of the reinforcing rib 205 is trapezoidal in shape, and the thickness of the reinforcing plate 204 and the reinforcing rib 205 is 15mm, which helps to improve the support strength of the support cylinder 202.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An inner built-in pneumatic wheel set steering disc steering limiting mounting base, characterized in that: Including wheel pair carousel device (1), the bottom end of wheel pair carousel device (1) is mechanically connected with mounting mechanism (2), and is penetrated to the inside of wheel pair carousel device (1), the bottom end of mounting mechanism (2) is slidingly connected with limiting mechanism (3), and is penetrated to the inside of mounting mechanism (2); The mounting mechanism (2) includes a base (201), the base (201) is fixedly installed below the wheel pair carousel device (1), the top end of the base (201) is mechanically processed with a support cylinder (202), the top end of the support cylinder (202) is rotatably connected with a steering cylinder (203); The limiting mechanism (3) includes a connecting ring (301), the connecting ring (301) is mechanically processed at the bottom end of the steering cylinder (203) and is rotatably connected inside the support cylinder (202), the top end of the support cylinder (202) is slidingly connected with a telescopic ring (302) and is located at the bottom end of the steering cylinder (203), the bottom end of the telescopic ring (302) is mechanically processed with a support plate (303), the support plate (303) is mechanically connected with a telescopic spring (304) between the bottom end and the inner wall of the support cylinder (202), the top end of the support plate (303) is mechanically processed with a limiting column (305) on both sides and is penetrated to the inside of the connecting ring (301), a plurality of fixing columns (306) are distributed between the limiting columns (305) and are mechanically processed on the top end of the support plate (303) and are penetrated to the inside of the connecting ring (301).

2. The built-in pneumatic wheelset steering limit mounting seat according to claim 1, characterized in that: The mounting mechanism (2) further includes a reinforcing plate (204), the reinforcing plate (204) has a plurality of reinforcing plates (204) mechanically processed around the outer wall of the support cylinder (202) and located at the top end of the base (201), and a plurality of reinforcing ribs (205) are mechanically connected between the reinforcing plates (204).

3. The built-in type air wheelset steering limit installation seat of claim 1, wherein: The top end of the support cylinder (202) and the bottom end of the steering cylinder (203) are rotatably connected by balls, and the outer wall of the steering cylinder (203) and the bottom end of the wheel pair carousel device (1) are fixed by bolt sleeve.

4. The built-in pneumatic wheelset steering limit mounting seat according to claim 2, characterized in that: The outer wall of the reinforcing plate (204) is processed with a flange hole matched with an external cylinder and is penetrated to the inner wall of the support cylinder (202), the outer wall of the reinforcing rib (205) is trapezoidal, and the thickness of the reinforcing plate (204) and the reinforcing rib (205) is 15mm.

5. The built-in pneumatic wheelset steering limit mounting seat according to claim 1, characterized in that: The top end of the support cylinder (202) is provided with a telescopic groove matched with the telescopic ring (302), and the inside of the support cylinder (202) is provided with a support groove matched with the support plate (303), and the height of the limiting column (305) is higher than that of the fixing column (306).

6. The built-in pneumatic wheelset steering limit mounting seat according to claim 1, characterized in that: The inside of the support cylinder (202) is provided with a rotating groove matched with the connecting ring (301), the bottom end of the connecting ring (301) is provided with a limiting hole matched with the limiting column (305) and the fixing column (306), and a arc-shaped sliding groove matched with the limiting column (305) is provided below the limiting hole, and the sliding angle of the arc-shaped sliding groove is 180 degrees.

Images