Rail pulley structure of rail car

Abstract

The utility model discloses a rail car rail pulley structure which comprises two wheel discs, a connecting shaft is connected between the two wheel discs, wheel rims are fixed on the outer surfaces of the wheel discs, a middle shaft is fixed in each wheel rim, a blocking and protecting assembly is installed in each wheel rim, each blocking and protecting assembly comprises a blocking and protecting disc, a blocking and protecting ring and a blocking and protecting cover, the blocking and protecting disc and the blocking and protecting ring are arranged on the inner surface of the rim in a sleeving mode, and the blocking and protecting cover is arranged on the outer surface of the middle shaft in a sleeving mode. The blocking and protecting assembly is installed in the rim, the blocking and protecting disc, the blocking and protecting ring and the blocking and protecting cover are used for blocking and protecting the inner surface of the rim, generated dirt can be bonded to the blocking and protecting assembly, if the dirt needs to be removed, only the blocking and protecting assembly needs to be detached from the interior of the rim and replaced, and the inner surface of the rim can be kept clean all the time; and maintenance of the pulley structure is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rail car technical field, and specifically relates to a rail car track pulley structure. BACKGROUND

[0002] The rail car is the main transport tool for the construction department of railway equipment maintenance, overhaul, capital construction and the like to perform tasks, and is provided with a track pulley at the bottom, which can roll on the track to ensure the normal running of the rail car.

[0003] After long time use, the surface of the pulley is easy to be stained with dust, rainwater or soil, and the dirt on the outer surface of the pulley is easy to be cleaned, but the dirt on the inner surface of the pulley is not easy to be cleaned, and the remaining dirt is easy to rust the inner surface of the pulley and reduce the service life of the pulley, so a new pulley structure needs to be designed to solve the problem. SUMMARY

[0004] The utility model discloses a rail car track pulley structure to solve the problem that the inner surface of the track pulley of the rail car is not easy to clean dirt.

[0005] To achieve the above object, the utility model provides the following technical scheme: a rail car track pulley structure, including two wheel discs, the two wheel discs are connected with connecting shafts, the outer surface of the wheel disc is fixed with a rim, the inside of the rim is fixed with a central shaft, the inside of the rim is installed with a guard assembly, the guard assembly includes a guard disc, a guard ring and a guard cover, the guard disc and the guard ring are sleeved on the inner surface of the rim, and the guard cover is sleeved on the outer surface of the central shaft.

[0006] Preferably, the guard assembly further includes connecting convex strips, connecting grooves and connecting strips, the connecting strips are fixed on the outer surface of the central shaft, the connecting convex strips are symmetrically arranged on the outer surface of the guard cover, the connecting grooves are arranged in the connecting convex strips, and the connecting grooves are slidably connected with the connecting strips.

[0007] Preferably, the guard assembly further includes a bolt A, and the bolt A is used for bolted connection and fixation of the connecting convex strips and the connecting strips.

[0008] Preferably, the guard assembly further includes a sealing ring, and the sealing ring is fixed on the edge outer surface of the guard ring.

[0009] Preferably, the wheel disc is provided with a sound absorbing assembly on the surface away from the central shaft, the sound absorbing assembly includes a mounting disc and a foam pad, the foam pad is fixed on one side of the mounting disc and is attached to the surface of the wheel disc.

[0010] Preferably, the sound-absorbing component further includes a mounting hole, an inner hole, a bolt B, and a screw hole. The mounting hole is formed on the surface of the mounting plate, the inner hole is formed inside the foam pad and is adapted to the mounting hole, and the bolt B passes through the mounting hole and the inner hole and is threadedly connected to the screw hole formed on the surface of the disc.

[0011] Preferably, the bolt B is provided in four locations and is distributed at equal intervals.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By installing a protective assembly inside the wheel rim, using a protective disc, protective ring, and protective cover, the inner surface of the wheel rim can be protected and covered. Dirt will stick to the protective assembly. To remove the dirt, simply remove and replace the protective assembly from inside the wheel rim. The inner surface of the wheel rim can always be kept clean, which is beneficial for the maintenance of the pulley structure. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional schematic diagram of the protective component of this utility model;

[0016] Figure 3 This utility model Figure 1 Enlarged view of area A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged diagram of area B in the middle;

[0018] Figure 5 This is a partial side sectional view of the sound-absorbing component of this utility model;

[0019] In the diagram: 100, wheel disc; 200, wheel rim; 300, connecting shaft; 400, central shaft; 500, guard assembly; 501, guard plate; 502, guard ring; 503, guard cover; 504, connecting ridge; 505, connecting groove; 506, connecting strip; 507, bolt A; 508, sealing ring; 600, sound-absorbing assembly; 601, mounting plate; 602, foam pad; 603, mounting hole; 604, inner hole; 605, bolt B; 606, screw hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example

[0022] Please see Figures 1 to 5 This embodiment of the present invention provides a technical solution: a track pulley structure for a railcar, comprising two wheel discs 100, connected by a connecting shaft 300. A wheel rim 200 is fixed to the outer surface of each wheel disc 100, and a central shaft 400 is fixed inside the wheel rim 200, forming the main structure of the pulley. A protective assembly 500 is installed inside the wheel rim 200 to cover and protect the inner side of the wheel rim 200. The protective assembly 500 includes a protective disc 501, a protective ring 502, and a protective cover 503. The protective disc 501 and the protective ring 502 are fitted onto the inner surface of the wheel rim 200, and the protective cover 503 is fitted onto the outer surface of the central shaft 400, providing good protection. As a result, the guard assembly 500 also includes a connecting ridge 504, a connecting groove 505, and a connecting strip 506. The connecting strip 506 is symmetrically fixed on the outer surface of the central shaft 400, and the connecting ridge 504 is symmetrically arranged on the outer surface of the guard cover 503. The connecting groove 505 is opened inside the connecting ridge 504, and the connecting groove 505 and the connecting strip 506 are slidably engaged to complete the initial positioning and connection of the guard assembly 500. The guard assembly 500 also includes a bolt A507, which bolts and fixes the connecting ridge 504 and the connecting strip 506, fixing the guard assembly 500 inside the wheel rim 200. If disassembly is required, simply remove the bolt A507 and then take out the guard assembly 500.

[0023] In this embodiment, preferably, the protective assembly 500 further includes a sealing ring 508. The sealing ring 508 is fixed on the outer surface of the edge of the protective ring 502. After the protective assembly 500 is installed, the sealing ring 508 can cover the area between the outer edge of the wheel rim 200 and the outer edge of the protective ring 502, thereby playing a sealing role and preventing dirt from entering between the wheel rim 200 and the protective ring 502.

[0024] In this embodiment, preferably, a sound-absorbing component 600 is provided on the side surface of the wheel 100 away from the central axis 400. The sound-absorbing component 600 includes a mounting plate 601 and a foam pad 602. The foam pad 602 is fixed to one side of the mounting plate 601 and fits against the surface of the wheel 100. The foam pad 602 can absorb the noise generated during the rolling of the pulley structure. The sound-absorbing component 600 also includes a mounting hole 603, an inner hole 604, a bolt B605, and a screw hole 606. The mounting hole 603 is opened on the surface of the mounting plate 601, and the inner hole 604 is opened inside the foam pad 602 and is adapted to the mounting hole 603. The bolt B605 passes through the mounting hole 603 and the inner hole 604 and is threadedly connected to the screw hole 606 opened on the surface of the wheel 100, thus fixing the sound-absorbing component 600 on the surface of the wheel 100. The bolt B605 is provided in four places and is evenly distributed to ensure the stable installation of the sound-absorbing component 600.

[0025] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A railcar track pulley arrangement comprising two wheel discs (100), characterized in that: Two connecting shafts (300) are connected between the two wheel plates (100), the outer surface of the wheel plate (100) is fixedly connected with a rim (200), the inner part of the rim (200) is fixedly connected with a middle shaft (400), the inner part of the rim (200) is provided with a guard assembly (500), the guard assembly (500) comprises a guard disc (501), a guard ring (502) and a guard cover (503), the guard disc (501) and the guard ring (502) are sleeved on the inner surface of the rim (200), and the guard cover (503) is sleeved on the outer surface of the middle shaft (400).

2. A railcar track and pulley arrangement according to claim 1 wherein: The guard assembly (500) further comprises a connecting convex strip (504), a connecting groove (505) and a connecting strip (506), the connecting strip (506) is fixedly connected to the outer surface of the middle shaft (400) in a symmetrical manner, the connecting convex strip (504) is arranged on the outer surface of the guard cover (503) in a symmetrical manner, the connecting groove (505) is arranged in the connecting convex strip (504), and the connecting groove (505) is slidably connected with the connecting strip (506).

3. A railcar track and pulley arrangement according to claim 2 wherein: The guard assembly (500) further comprises a bolt A (507), the bolt A (507) is used for fixedly connecting the connecting convex strip (504) and the connecting strip (506).

4. The railcar track and pulley arrangement of claim 1, wherein: The guard assembly (500) further comprises a sealing ring (508), and the sealing ring (508) is fixedly connected to the edge outer surface of the guard ring (502).

5. The railcar track and pulley arrangement of claim 1 wherein: The wheel plate (100) is provided with a sound absorption assembly (600) on the surface away from the middle shaft (400), the sound absorption assembly (600) comprises a mounting disc (601) and a foam pad (602), the foam pad (602) is fixedly connected to one side of the mounting disc (601) and is attached to the surface of the wheel plate (100).

6. A railcar track and pulley arrangement according to claim 5 wherein: The sound absorption assembly (600) further comprises a mounting hole (603), an inner hole (604), a bolt B (605) and a screw hole (606), the mounting hole (603) is arranged on the surface of the mounting disc (601), the inner hole (604) is arranged in the foam pad (602) and is matched with the mounting hole (603), the bolt B (605) penetrates through the mounting hole (603) and the inner hole (604) and is threadedly connected with the screw hole (606) arranged on the surface of the wheel plate (100).

7. A railcar track and pulley arrangement according to claim 6 wherein: The bolt B (605) is provided with four bolts and is distributed at equal intervals.

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