Rail axle box protective cover with reinforcing structure

Abstract

The utility model relates to the technical field of rail traffic, in particular to a rail axle box protective cover with a reinforcing structure, which comprises a wheel axle, wheels symmetrically and fixedly connected to two ends of the wheel axle, axle boxes symmetrically and rotatably connected to two ends of the wheel axle, spring supporting seats arranged at two ends of each axle box, and a protective cover main body fixedly connected to one end of each axle box through a bolt. A reinforcing assembly is fixedly connected to the inner side of the protective cover body, a sealing plate is fixedly connected to one end of the protective cover body, and a first sealing groove and a damping groove are formed in one end of the axle box; according to the rail axle box body protective cover with the reinforcing structure, the reinforcing assembly is arranged on the inner wall of the protective cover body to achieve reinforcing of the protective cover structure, the shock absorption grooves are formed in the threaded holes where the protective cover body is connected with the axle box, and the shock absorption rubber rings are arranged, so that the anti-vibration capacity of the protective cover is improved; dust and rainwater are prevented from seeping into the axle box due to long-term vibration and loosening, and the anti-seepage capacity of the protective cover is improved through the arranged sealing plate and sealing ring.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, specifically a protective cover for a rail vehicle axle box with a reinforced structure. Background Technology

[0002] The axle box is a key component of the bogie of a rail vehicle. It is mainly used to connect the wheelset to the frame and to transfer the load of the car body to the wheelset. It is usually made of cast iron or aluminum alloy, with rolling bearings installed inside to support the rotation of the axle, and a protective cover on the outside to prevent dust and rainwater from entering.

[0003] Chinese Patent CN217672635U discloses an axle box body for use in a railcar, including an axle box body and a base. A connecting rod is fixedly connected to the end of the axle box body, and a connecting hole is formed on the surface of the connecting rod. A bearing hole is formed on the side surface of the axle box body. A gap is created between the bottom end of the sliding member and the circular hole. Lubricating oil in the oil reservoir flows from the circular hole to the guide plate and then flows into the bearing in the bearing hole along the inclined direction of the guide plate, thus lubricating the bearing and ensuring its performance and extending its service life. The limiting post, limiting ring, and circular rod limit the sliding member and prevent it from dislodging from the circular hole. A spring is provided, and the elastic restoring effect of the spring can reset the sliding member, avoiding the bottom end of the sliding member from constantly creating a gap with the circular hole and preventing continuous oil dripping into the circular groove, thus ensuring the stable operation of the refueling structure.

[0004] The aforementioned solutions and existing technologies for vehicle axle box protective covers mostly use single-layer steel plates or cast iron structures. This structure does not have good impact resistance, and long-term exposure to railway track vibrations can easily cause fasteners to loosen, allowing dust and rainwater to seep into the vehicle axle box. There is a lack of corresponding vibration-resistant and sealing protective cover structures with reinforced structures in this area, which needs to be improved and optimized. Utility Model Content

[0005] The purpose of this utility model is to provide a protective cover for a railcar axle box with a reinforced structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A protective cover for a railcar axle box with a reinforced structure includes a wheel axle, wheels are symmetrically fixedly connected to both ends of the wheel axle, axle boxes are symmetrically rotatably connected to both ends of the wheel axle, spring support seats are provided at both ends of the axle box, a protective cover body is bolted to one end of the axle box, a reinforcing component is fixedly connected to the inner side of the protective cover body, a sealing plate is fixedly connected to one end of the protective cover body, a first sealing groove is provided at one end of the axle box, and a shock-absorbing groove is provided at one end of the axle box.

[0007] Preferably, one end of the axle box is provided with a threaded hole, which corresponds to the damping groove, and one end of the axle box is provided with a positioning round hole.

[0008] Preferably, a sealing ring is inserted into the first sealing groove, and the sealing plate is inserted into the first sealing groove.

[0009] Preferably, a shock-absorbing rubber ring is inserted into the shock-absorbing groove.

[0010] Preferably, one end of the protective cover body is provided with a threaded hole, one end of the protective cover body is provided with a shock-absorbing groove, one end of the protective cover body is fixedly connected with a positioning pin, the positioning pin is inserted into the positioning round hole, one end of the protective cover body is provided with a second sealing groove, and one end of the sealing ring is inserted into the second sealing groove.

[0011] Preferably, the reinforcing component includes an outer annular reinforcing ring, a stiffening rib, a reinforcing strip, and a reinforcing ring; the reinforcing ring is fixedly connected to the inner corner of the protective cover body, the stiffening rib is fixedly connected between the inner side wall and the inner wall of the protective cover body, the reinforcing strip is fixedly connected to the inner wall of the protective cover body, and the reinforcing ring is fixedly connected to the middle of the inner wall of the protective cover body.

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

[0013] The protective cover for a railcar axle box with a reinforced structure proposed in this utility model is mainly strengthened by setting a reinforcing component on the inner wall of the protective cover body. A shock-absorbing groove and a shock-absorbing rubber ring are set at the threaded hole connecting the protective cover body and the axle box to increase the vibration resistance of the protective cover and prevent dust and rainwater from seeping into the axle box due to long-term vibration and loosening. The sealing plate and sealing ring set increase the leakage prevention capability of the protective cover. Attached Figure Description

[0014] Figure 1 A schematic diagram of a protective cover for a railcar axle box with a reinforced structure;

[0015] Figure 2 A partial exploded view of a protective cover for a railcar axle box with a reinforced structure;

[0016] Figure 3 for Figure 2 Enlarged diagram of part A in the middle;

[0017] Figure 4 This is a schematic diagram of the main structure of a protective cover for a railcar axle box with a reinforced structure.

[0018] In the diagram: wheel axle 1, wheel 2, axle box 3, first sealing groove 301, shock absorption groove 302, threaded hole 303, positioning round hole 304, sealing ring 305, shock absorption rubber ring 306, spring support seat 4, protective cover body 5, sealing plate 501, positioning pin 502, second sealing groove 503, outer annular reinforcing ring 601, reinforcing rib 602, reinforcing strip 603, reinforcing ring 604. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1-4 The present invention provides the following two preferred embodiments:

[0021] Example 1: A protective cover for a railcar axle box with a reinforced structure includes a wheel axle 1, with wheels 2 symmetrically fixedly connected to both ends of the wheel axle 1, and axle boxes 3 symmetrically rotatably connected to both ends of the wheel axle 1. Spring support seats 4 are provided at both ends of the axle box 3. A protective cover body 5 is bolted to one end of the axle box 3. A reinforcing component is fixedly connected to the inner side of the protective cover body 5. A sealing plate 501 is fixedly connected to one end of the protective cover body 5. A first sealing groove 301 is provided at one end of the axle box 3, and a shock-absorbing groove 302 is provided at one end of the axle box 3. A threaded hole 303 is provided at one end of the axle box 3, and the threaded hole 303 connects to the shock-absorbing groove. Corresponding to 302, one end of the axle box 3 is provided with a positioning round hole 304; a sealing ring 305 is inserted into the first sealing groove 301, and a sealing plate 501 is inserted into the first sealing groove 301; a shock-absorbing rubber ring 306 is inserted into the shock-absorbing groove 302; one end of the protective cover body 5 is provided with a threaded hole 303, and one end of the protective cover body 5 is provided with a shock-absorbing groove 302; a positioning pin 502 is fixedly connected to one end of the protective cover body 5, and the positioning pin 502 is inserted into the positioning round hole 304; one end of the protective cover body 5 is provided with a second sealing groove 503, and one end of the sealing ring 305 is inserted into the second sealing groove 503.

[0022] When using the protective cover body 5, first align the multiple sets of positioning pins 502 with the corresponding positioning holes 304 for pre-positioning and insertion. At this time, one end of the sealing ring 305 in the first sealing groove 301 is inserted into the second sealing groove 503 on the protective cover body 5, and the sealing plate 501 on the protective cover body 5 is inserted into the first sealing groove 301 on the axle box 3, which increases the sealing performance of the structure. Then, tighten the bolts in the threaded holes 303 for fastening. The shock-absorbing rubber ring 306 inserted in the shock-absorbing groove 302 plays a vibration-damping role for the protective cover body 5 after the bolts are tightened, which prevents the protective cover body 5 from loosening under long-term wheel vibration and causing dust and rainwater to seep into the axle box 3 and cause damage.

[0023] Example 2: Based on Example 1, the reinforcing component includes an outer annular reinforcing ring 601, a stiffening rib 602, a reinforcing strip 603, and a reinforcing ring 604; the reinforcing ring 601 is fixedly connected to the inner corner of the protective cover body 5, the stiffening rib 602 is fixedly connected between the inner side wall and the inner wall of the protective cover body 5, the reinforcing strip 603 is fixedly connected to the inner wall of the protective cover body 5, and the reinforcing ring 604 is fixedly connected to the middle of the inner wall of the protective cover body 5.

[0024] In use, the reinforcing components on the inner wall of the protective cover body 5 provide all-round structural reinforcement to all parts of the protective cover body 5 through the outer annular reinforcing ring 601, the stiffening rib plate 602, the reinforcing strip 603 and the reinforcing ring 604, thereby increasing the structural strength of the protective cover body 5 and its impact resistance.

[0025] Although embodiments of the present invention have been shown and described, 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 protective cover for a railcar axle box with a reinforced structure, comprising a wheel axle (1), wheels (2) symmetrically fixedly connected to both ends of the wheel axle (1), and axle boxes (3) symmetrically rotatably connected to both ends of the wheel axle (1), with spring support seats (4) provided at both ends of the axle box (3), and a protective cover body (5) bolted to one end of the axle box (3), characterized in that: The protective cover body (5) is fixedly connected to a reinforcing component on the inner side. A sealing plate (501) is fixedly connected to one end of the protective cover body (5). A first sealing groove (301) is provided at one end of the axle box (3). A shock-absorbing groove (302) is provided at one end of the axle box (3).

2. The protective cover for a railcar axle box with a reinforced structure according to claim 1, characterized in that: The axle box (3) has a threaded hole (303) at one end, which corresponds to the damping groove (302). The axle box (3) also has a positioning hole (304) at one end.

3. A protective cover for a railcar axle box with a reinforced structure according to claim 1, characterized in that: A sealing ring (305) is inserted into the first sealing groove (301), and the sealing plate (501) is inserted into the first sealing groove (301).

4. A protective cover for a railcar axle box with a reinforced structure according to claim 2, characterized in that: A shock-absorbing rubber ring (306) is inserted into the shock-absorbing groove (302).

5. A protective cover for a railcar axle box with a reinforced structure according to claim 1, characterized in that: One end of the protective cover body (5) is provided with a threaded hole (303), one end of the protective cover body (5) is provided with a shock-absorbing groove (302), one end of the protective cover body (5) is fixedly connected with a positioning pin (502), the positioning pin (502) is inserted into the positioning round hole (304), one end of the protective cover body (5) is provided with a second sealing groove (503), and one end of the sealing ring (305) is inserted into the second sealing groove (503).

6. A protective cover for a railcar axle box with a reinforced structure according to claim 1, characterized in that: The reinforcing components include an outer annular reinforcing ring (601), a stiffening rib (602), a reinforcing strip (603), and a reinforcing ring (604); the reinforcing ring (601) is fixedly connected to the inner corner of the protective cover body (5), the stiffening rib (602) is fixedly connected between the inner side wall and the inner wall of the protective cover body (5), the reinforcing strip (603) is fixedly connected to the inner wall of the protective cover body (5), and the reinforcing ring (604) is fixedly connected to the middle of the inner wall of the protective cover body (5).

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