A lower center plate structure for heavy-duty railway freight cars

Abstract

This utility model discloses a lower center plate structure for heavy-duty railway freight cars, including a mounting plate. Symmetrical baffles are provided on the bottom of both sides of one end of the mounting plate. A second mounting groove is provided on the inner side of each baffle, and a first mounting groove is provided on one side inside the second mounting groove. A locking bolt is provided inside the first mounting groove. Connecting plates are symmetrically provided on both sides of the bottom of the mounting plate, and a shaft connecting pipe is provided inside each connecting plate. Through the cooperation of the locking bolts, baffles, and second mounting grooves, this utility model effectively limits the locking bolts during use, ensuring their tightness during shaft connection and preventing loosening due to vibration during railway freight car operation, thus guaranteeing connection stability.

Description

Technical Field

[0001] This utility model relates to the field of lower center plate technology, specifically a lower center plate structure for heavy-duty railway freight cars. Background Technology

[0002] The lower center plate is an important component of the railway freight car bogie. It is fixedly installed at the center of the top surface of the bogie bolster and is one of the most important components of the bogie that bears the vertical load of the car body.

[0003] The existing authorized publication number is "Railway Tank Car Traction Pillow Core Plate Structure", which includes a core plate seat connected to the lower flange of the traction beam. The core plate seat includes a core plate seat base plate. One end of the pillow beam web plate connected to the traction beam web plate is set on the core plate seat base plate. The core plate seat base plate, the lower flange of the traction beam, and the pillow beam are set on the same plane and are integral with the lower flange of the traction beam. In the railway tank car traction pillow core plate structure of the present invention, the upper core plate is installed on a single piece of steel plate, namely the core plate seat base plate. The core plate seat base plate is integrated with the lower flange of the traction beam, which avoids the problem in the existing multi-layer structure where the lower cover plate of the pillow cannot be completely sealed to the mounting surface, resulting in gaps, poor stress on the lower cover plate of the pillow and the upper core plate, or even cracking.

[0004] However, the lower center plate is usually connected to the axle of the railway freight car, and the axle is usually locked by bolts. During the operation of the railway freight car, these bolts may loosen due to vibration, and the center plate structure cannot limit the bolts. Utility Model Content

[0005] The purpose of this invention is to provide a lower center plate structure for heavy-duty railway freight cars to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lower center plate structure for heavy-duty railway freight cars, including a mounting plate, with baffles symmetrically arranged on the bottom of both sides of one end of the mounting plate, a second mounting groove provided on the inner side of the baffle, a first mounting groove provided on one side inside the second mounting groove, a locking bolt provided inside the first mounting groove, and connecting plates symmetrically arranged on both sides of the bottom of the mounting plate, with shaft connecting pipes provided inside the connecting plates.

[0007] Preferably, the mounting plate has weight-reducing holes in the middle of both sides at one end to reduce its own weight.

[0008] Preferably, the outer side of the baffle is provided with multiple sets of connecting plates, and the connecting plates are connected to the mounting plate by bolts, which facilitates fixing the position of the baffle and ensures the stability of the baffle connection.

[0009] Preferably, a threaded hole is provided on one side of the first mounting groove, and the locking bolt is located inside the threaded hole for easy connection.

[0010] Preferably, a shock absorber mounting groove is provided in the middle of both sides of the mounting plate, and a shock absorber connecting plate is provided inside the shock absorber mounting groove to facilitate the installation of the shock absorber.

[0011] Preferably, both the connecting plate and the second mounting groove are made of a triangular structure, and the baffle and the second mounting groove are adapted to each other to ensure their strength.

[0012] Preferably, the shaft connecting pipe is round, which facilitates its adaptation to the axle of railway freight cars.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the lower center plate structure for heavy-duty railway freight cars; With the cooperation of the locking bolt, baffle, and second mounting groove, the device can effectively limit the locking bolt during use, thereby ensuring the locking bolt is locked during shaft connection and preventing it from loosening due to vibration during railway freight car operation, thus ensuring the stability of the connection. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model; Figure 2 This is the front view of the present invention; Figure 3 This is a perspective view of the baffle of this utility model.

[0015] In the diagram: 1. Mounting plate; 2. Shock absorber mounting slot; 3. Weight reduction hole; 4. First mounting slot; 5. Connecting plate; 6. Shaft connecting pipe; 7. Locking bolt; 8. Baffle; 9. Second mounting slot. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-3The present invention provides an embodiment of a lower core plate structure for heavy-duty railway freight cars, comprising a mounting plate 1, with shock-absorbing device mounting grooves 2 located in the middle of both sides of the mounting plate 1. A shock-absorbing device connecting plate is located inside the mounting grooves 2 to facilitate the installation of the shock-absorbing device. Weight-reducing holes 3 are located in the middle of both sides at one end of the mounting plate 1 to reduce its own weight. Symmetrical baffles 8 are located at the bottom of both sides at one end of the mounting plate 1. Multiple sets of connecting plates are located on the outer side of the baffles 8, and these connecting plates are connected to the mounting plate 1 by bolts, facilitating the fixing of the position of the baffles 8 and ensuring the stability of the connection of the baffles 8. The baffle 8 has a second mounting groove 9 on its inner side, and a first mounting groove 4 on one side inside the second mounting groove 9. The first mounting groove 4 has a locking bolt 7 inside, and a threaded hole on one side of the first mounting groove 4. The locking bolt 7 is located inside the threaded hole for easy connection. The bottom of the mounting plate 1 has symmetrical connecting plates 5 on both sides. Both the connecting plates 5 and the second mounting groove 9 are made of triangular structure. The baffle 8 and the second mounting groove 9 are adapted to each other to ensure their strength. The connecting plate 5 has a shaft connecting tube 6 inside. The shaft connecting tube 6 is round and is easy to adapt to the axle of the railway freight car.

[0018] Working principle: During the connection of the lower center plate, the shaft is first installed inside the shaft connecting tube 6. After installation, the locking bolt 7 is screwed into the shaft connecting tube 6 to lock the shaft inside the shaft connecting tube 6. After locking, the baffle 8 is placed inside the second mounting groove 9, and the position of the baffle 8 is locked with bolts. Thus, when the railway freight car is running, the baffle 8 can limit the locking bolt 7, so that the locking bolt 7 will not loosen when subjected to vibration, thereby ensuring the stability of the connection of the locking bolt 7. Then, the external shock absorber is installed inside the shock absorber mounting groove 2 to achieve the shock absorption effect.

[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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, and 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A lower bolster structure for a heavy haul railway wagon comprising a mounting bolster (1) characterised in that: The mounting plate (1) has baffles (8) symmetrically arranged on both sides of the bottom. The baffles (8) have a second mounting groove (9) on the inner side. The second mounting groove (9) has a first mounting groove (4) on one side. The first mounting groove (4) has a locking bolt (7) inside. The mounting plate (1) has connecting plates (5) symmetrically arranged on both sides of the bottom. The connecting plates (5) have shaft connecting pipes (6) inside.

2. A lower bolster construction for a heavy duty railway wagon as claimed in claim 1 wherein: The mounting plate (1) has a weight reduction hole (3) in the middle of both sides at one end.

3. A lower bolster construction for a heavy duty railway wagon as claimed in claim 1 wherein: The outer side of the baffle (8) is provided with multiple sets of connecting plates, and the connecting plates are connected to the mounting plate (1) by bolts.

4. A lower bolster construction for a heavy duty railway wagon as claimed in claim 1 wherein: The first mounting groove (4) has a threaded hole on one side, and the locking bolt (7) is located inside the threaded hole.

5. The lower center plate structure for heavy-duty railway freight cars according to claim 1, characterized in that: The mounting plate (1) has a shock-absorbing device mounting groove (2) in the middle of both sides, and a shock-absorbing device connecting plate is provided inside the shock-absorbing device mounting groove (2).

6. The lower center plate structure for heavy-duty railway freight cars according to claim 1, characterized in that: The connecting plate (5) and the second mounting groove (9) are both made of triangular structure, and the baffle (8) and the second mounting groove (9) are adapted to each other.

7. The lower center plate structure for heavy-duty railway freight cars according to claim 1, characterized in that: The shaft connecting tube (6) is circular.

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