Railway wagon damping swing bolster convenient to overhaul

Abstract

The railway wagon damping swing bolster convenient to overhaul comprises a swing bolster body, a mounting groove is formed in one side of the swing bolster body, a damper is arranged in an inner cavity of the mounting groove, a machine box is fixedly connected to the top of the damper, a driving bolt is movably connected to the inner wall of the machine box through a bearing seat, and the driving bolt is fixedly connected to the inner wall of the machine box. A transmission mechanism is arranged on the surface of the driving bolt and comprises a driving bevel gear and a driven bevel gear. Through cooperation of the damper, the case, the driving bolt, the transmission mechanism, the rotating shaft, the threaded rod, the threaded sleeve, the limiting rod, the mounting plate and the mounting clamping block, the driving bolt drives the rotating shaft to rotate through the transmission mechanism, the rotating shaft drives the limiting rod to move through the threaded rod and the threaded sleeve, and the limiting rod drives the mounting clamping block to move through the mounting plate. And a damper facilitates damping of the device, so that the effect of high practicability is achieved, and the problem that an existing device is low in practicability is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolsters, in particular to a shock-absorbing bolster for railway freight cars which is convenient for maintenance. Background Art

[0002] Railway freight car bogies are key components of railway freight vehicles, mainly composed of side frames, bolsters, vibration damping devices, wheelsets and braking devices, etc. They can support, steer and brake railway freight cars, so that railway freight cars can run safely and smoothly on the track. However, during use, bolsters, wedges and vibration damping devices are prone to wear, have a short service life, and have limited vibration damping effects. It is also inconvenient to inspect and repair the vibration damping devices. Summary of the invention

[0003] The utility model aims to provide a railway freight car shock-absorbing bolster which is convenient for maintenance and has the advantage of high practicability, thus solving the problem of low practicability of the existing device.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a railway freight car shock-absorbing bolster which is easy to maintain, comprising a bolster body, a mounting groove is provided on one side of the bolster body, a damper is provided in the inner cavity of the mounting groove, the top of the damper is fixedly connected to a chassis, a driving bolt is movably connected to the inner wall of the chassis through a bearing seat, a transmission mechanism is provided on the surface of the driving bolt, the transmission mechanism comprises an active bevel gear and a driven bevel gear, a rotating shaft is fixedly connected at the axis of the driven bevel gear, a threaded rod is fixedly connected on both sides of the rotating shaft, a threaded sleeve is provided on the surface of the threaded rod, a limiting rod is fixedly connected to the surface of the threaded sleeve, one end of the limiting rod is fixedly connected to a mounting plate, and a mounting block is provided on one side of the mounting plate.

[0005] Preferably, a driving bevel gear is fixedly connected to the surface of the driving bolt, and a driven bevel gear is meshed with the surface of the driving bevel gear.

[0006] Preferably, there are two threaded rods, and the threads on the surfaces of the two threaded rods are in opposite directions.

[0007] Preferably, the other end of the limiting rod passes through the chassis and extends to the outside of the chassis, and a limiting groove is provided on the top of the chassis.

[0008] Preferably, both left and right sides of the chassis are fixedly connected with sliding sleeves, the inner cavity of the sliding sleeves is slidably connected with a sliding rod, and the surface of the sliding rod is sleeved with a first spring.

[0009] Preferably, the surface of the damper is sleeved with second springs, and the number of the second springs is three.

[0010] Preferably, the surface of the bolster body is coated with a protective layer, the protective layer includes an anti-oxidation layer and a wear-resistant layer, and a wear-resistant layer is provided on one side of the anti-oxidation layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model cooperates with a damper, a chassis, a driving bolt, a transmission mechanism, a rotating shaft, a threaded rod, a threaded sleeve, a limiting rod, a mounting plate and a mounting block. The driving bolt drives the rotating shaft to rotate through the transmission mechanism, the rotating shaft drives the limiting rod to move through the threaded rod and the threaded sleeve, and the limiting rod drives the mounting block to move through the mounting plate, so that the workpiece can be clamped and fixed, and the damper is convenient for shock reduction of the device, thereby achieving a high practicality effect and solving the problem of low practicality of the existing device.

[0013] 2. The utility model designs the threads on the surfaces of the two threaded rods to be in opposite directions, thereby facilitating the two threaded sleeves to move toward each other. The cooperation of the limiting rod and the limiting groove facilitates the limiting of the threaded sleeve. The cooperation of the sliding sleeve, the sliding rod and the first spring facilitates the action of the first spring on the sliding sleeve, thereby facilitating the resetting of the sliding sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a front cross-sectional view of the protective layer structure of the utility model;

[0016] Figure 3 This is a front cross-sectional view of the chassis structure of the utility model.

[0017] In the figure: 1. rocker body; 2. mounting groove; 3. damper; 4. chassis; 5. driving bolt; 6. transmission mechanism; 61. active bevel gear; 62. driven bevel gear; 7. rotating shaft; 8. threaded rod; 9. threaded sleeve; 10. limit rod; 11. mounting plate; 12. mounting block; 13. limit groove; 14. sliding sleeve; 15. sliding rod; 16. first spring; 17. second spring; 18. protective layer; 181. anti-oxidation layer; 182. wear-resistant layer. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3A railway freight car shock-absorbing bolster convenient for maintenance comprises a bolster body 1, a surface of the bolster body 1 is coated with a protective layer 18, the protective layer 18 comprises an anti-oxidation layer 181 and a wear-resistant layer 182, a wear-resistant layer 182 is arranged on one side of the anti-oxidation layer 181, the threads of the two threaded rods 8 are designed to have opposite directions on the surface, so that the two threaded sleeves 9 can be moved toward each other, the threaded sleeves 9 can be limited by the cooperation of the limiting rod 10 and the limiting groove 13, the sliding sleeve 14 can be operated by the first spring 16 through the cooperation of the sliding sleeve 14, the sliding rod 15 and the first spring 16, and the sliding sleeve 14 can be reset conveniently. A mounting groove 2 is provided on one side of the bolster body 1, a damper 3 is provided in the inner cavity of the mounting groove 2, a second spring 17 is sleeved on the surface of the damper 3, and the number of the second springs 17 is three. The top of the damper 3 is fixedly connected to the chassis 4, and the left and right sides of the chassis 4 are fixedly connected to the sliding sleeve 14, and the inner cavity of the sliding sleeve 14 is slidably connected to the sliding rod 15, and the surface of the sliding rod 15 is sleeved with a first spring 16. The inner wall of the chassis 4 is movably connected to the driving bolt 5 through the bearing seat, and the surface of the driving bolt 5 is fixedly connected to the active bevel gear 61, and the surface of the active bevel gear 61 is meshed with the driven bevel gear 62, and the driving A transmission mechanism 6 is provided on the surface of the bolt 5. The transmission mechanism 6 includes a driving bevel gear 61 and a driven bevel gear 62. A rotating shaft 7 is fixedly connected to the axis of the driven bevel gear 62. Threaded rods 8 are fixedly connected to the left and right sides of the rotating shaft 7. There are two threaded rods 8, and the threads on the surfaces of the two threaded rods 8 are in opposite directions. A threaded sleeve 9 is sleeved on the surface of the threaded rod 8. A limiting rod 10 is fixedly connected to the surface of the threaded sleeve 9. The other end of the limiting rod 10 penetrates the chassis 4 and extends to the outside of the chassis 4. A limiting groove 13 is provided on the top of the chassis 4. One end of the limiting rod 10 is fixedly connected to a mounting plate 11. A mounting block 12 is provided on one side of the mounting plate 11. Through the cooperation of the damper 3, the chassis 4, the driving bolt 5, the transmission mechanism 6, the rotating shaft 7, the threaded rod 8, the threaded sleeve 9, the limiting rod 10, the mounting plate 11 and the mounting block 12, the driving bolt 5 drives the rotating shaft 7 to rotate through the transmission mechanism 6, the rotating shaft 7 drives the limiting rod 10 to move through the threaded rod 8 and the threaded sleeve 9, and the limiting rod 10 drives the mounting block 12 to move through the mounting plate 11, so as to facilitate clamping and fixing the workpiece, and the damper 3 facilitates shock absorption of the device, thereby achieving a high practicality effect and solving the problem of low practicality of the existing device.

[0020] When in use, the driving bolt 5 drives the rotating shaft 7 to rotate through the transmission mechanism 6, the rotating shaft 7 drives the limiting rod 10 to move through the threaded rod 8 and the threaded sleeve 9, and the limiting rod 10 drives the mounting block 12 to move through the mounting plate 11, so as to facilitate clamping and fixing the workpiece, and the damper 3 facilitates shock absorption of the device, thereby achieving a highly practical effect.

[0021] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent. In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A railway freight car shock-absorbing bolster that is easy to maintain, comprising a bolster body (1), characterized in that: A mounting groove (2) is provided on one side of the bolster body (1); a damper (3) is provided in the inner cavity of the mounting groove (2); a top of the damper (3) is fixedly connected to a chassis (4); a driving bolt (5) is movably connected to the inner wall of the chassis (4) via a bearing seat; a transmission mechanism (6) is provided on the surface of the driving bolt (5); the transmission mechanism (6) comprises a driving bevel gear (61) and a driven bevel gear (62); a rotating shaft (7) is fixedly connected to the axis of the driven bevel gear (62); a threaded rod (8) is fixedly connected to the left and right sides of the rotating shaft (7); a threaded sleeve (9) is sleeved on the surface of the threaded rod (8); a limiting rod (10) is fixedly connected to the surface of the threaded sleeve (9); one end of the limiting rod (10) is fixedly connected to a mounting plate (11); a mounting block (12) is provided on one side of the mounting plate (11).

2. The railway freight car shock-absorbing bolster for convenient maintenance according to claim 1, characterized in that: A driving bevel gear (61) is fixedly connected to the surface of the driving bolt (5), and a driven bevel gear (62) is meshed with the surface of the driving bevel gear (61).

3. The railway freight car shock-absorbing bolster for convenient maintenance according to claim 1, characterized in that: The number of the threaded rods (8) is two, and the directions of the threads on the surfaces of the two threaded rods (8) are opposite.

4. The railway freight car shock-absorbing bolster for convenient maintenance according to claim 1, characterized in that: The other end of the limiting rod (10) passes through the chassis (4) and extends to the outside of the chassis (4), and a limiting groove (13) is provided on the top of the chassis (4).

5. The railway freight car shock-absorbing bolster for convenient maintenance according to claim 1, characterized in that: The left and right sides of the chassis (4) are fixedly connected with a sliding sleeve (14), the inner cavity of the sliding sleeve (14) is slidably connected with a sliding rod (15), and the surface of the sliding rod (15) is sleeved with a first spring (16).

6. The railway freight car shock-absorbing bolster for convenient maintenance according to claim 1, characterized in that: The surface of the damper (3) is sleeved with second springs (17), and the number of the second springs (17) is three.

7. The railway freight car shock-absorbing bolster for convenient maintenance according to claim 1, characterized in that: The surface of the bolster body (1) is coated with a protective layer (18), the protective layer (18) comprising an anti-oxidation layer (181) and a wear-resistant layer (182), and the wear-resistant layer (182) is provided on one side of the anti-oxidation layer (181).

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