Coupling device for wheel set running-in test of urban rail vehicle

Abstract

The utility model discloses a coupling device used for an urban rail vehicle wheel set running-in test, and the device comprises a coupling which is provided with an inner hole axially penetrating through the coupling, and one end of the coupling is provided with a flange plate; the connector is coaxially arranged in the inner hole and is in interference fit with the inner hole, a shaft hole in interference fit with a gear shaft is formed in the end, away from the flange plate, of the connector, a first threaded hole communicated with the interior of the shaft hole is formed in the other end of the connector, and the first threaded hole is matched with a second threaded hole in the end of the gear shaft; the connecting bolt is used for being inserted into the first threaded hole and the second threaded hole and connecting the connector and the gear shaft. When in use, the connector is connected with the end part of the gear shaft through the connecting bolt, and the coupling is connected with a coupling on the side of a running-in test stand through the flange plate, so that a running-in test can be carried out, the installation is convenient, and the problem that a gearbox without a side coupling is installed on the running-in test stand is solved; and a running-in test can be normally carried out on the gearbox without the side coupling.

Description

Technical Field

[0001] The present application relates to the technical field of railway vehicles, and in particular to a coupling device for a wheelset running-in test of an urban rail vehicle. Background Art

[0002] The urban rail vehicle wheelset running-in test bench is a special test bench for simulating the operation of wheelsets. It can run-in light rail and subway wheelsets (with or without axle boxes) before installation. That is, at different speeds and rotation directions, by detecting the temperature changes and vibration intensity changes of the gearbox and gearbox output shaft bearings, as well as the changes in gearbox oil temperature, the adaptation status and performance of various gearbox components are analyzed and judged. This prevents hot axle and burning axle accidents in the early stage of wheelset operation caused by bearing production and assembly quality problems, further improves the detection of bearing production and assembly quality, and is of great significance to the safe operation of urban rail vehicles.

[0003] During the running-in test of urban rail vehicle wheelsets, the gearbox-side coupling must be connected to the running-in test bench coupling. Because the gearbox-side coupling requires disassembly and repair, running-in tests are performed without a side-coupling gearbox. Using a matching coupling requires specialized equipment for installation, which is time-consuming.

[0004] Therefore, there is an urgent need for a gearbox side running-in test coupling device that is specially designed for urban rail vehicles and easy to install. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a coupling device for a running-in test of a gearbox without a side coupling, the technical solution adopted comprising:

[0006] A coupling device for a running-in test of a wheelset of an urban rail vehicle comprises:

[0007] A coupling is provided with an inner hole axially extending therethrough, and one end of the coupling is provided with a flange;

[0008] A connector coaxially disposed in the inner hole and having an interference fit with the inner hole, wherein one end of the connector away from the flange is provided with an axial hole having an interference fit with the gear shaft, and the other end is provided with a first threaded hole communicating with the interior of the axial hole, and the first threaded hole matches the second threaded hole at the end of the gear shaft;

[0009] A connecting bolt is used to be inserted into the first threaded hole and the second threaded hole and connect the connecting head and the gear shaft.

[0010] The technical solution adopted by an embodiment of the present invention to solve its technical problem is: it also includes a protective plate, and the coupling is also provided with a countersunk hole connected to the inner hole at the end where the flange is provided, and the diameter of the countersunk hole is larger than the diameter of the inner hole, and the end of the connecting head close to the flange extends into the countersunk hole, and the protective plate is installed at the end of the connecting head extending out of the inner hole, and the outer diameter of the protective plate is larger than the diameter of the inner hole.

[0011] The technical solution adopted by an embodiment of the present invention to solve its technical problem is: at least two third threaded holes are provided at one end of the connecting head close to the flange plate, and a fourth threaded hole corresponding to the third threaded hole is provided on the protective plate, and the mounting bolts connect the protective plate and the connecting head through the third threaded hole and the fourth threaded hole.

[0012] An embodiment of the present invention adopts a technical solution to solve its technical problem: it also includes a process bolt, and the connecting head is provided with a fifth threaded hole connected to the shaft hole. The process bolt is used to tighten at the fifth threaded hole after the connecting bolt is removed to push the connecting head and the coupling away from the gear shaft.

[0013] An embodiment of the present invention adopts a technical solution to solve the technical problem as follows: a plurality of the fifth threaded holes are provided, and the plurality of the fifth threaded holes are evenly distributed around the first threaded hole.

[0014] An embodiment of the present invention adopts a technical solution to solve its technical problem: it also includes a gasket, which is arranged in the inner hole and distributed between the end of the gear shaft and the end of the connecting head, and the gasket is provided with a through hole matching the first threaded hole.

[0015] The beneficial effects of the present invention are as follows: when the coupling device described in the present application is in use, the connecting head is connected to the end of the gear shaft through a connecting bolt, and the coupling is connected to the coupling on the side of the running-in test bench through a flange to perform a running-in test. The installation is convenient, and the problem of installing a gear box without a side coupling on the running-in test bench is solved, so as to ensure the normal progress of the running-in test and enable the gear box without a side coupling to perform a running-in test normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 The structure of the coupling device described in this embodiment is shown in FIG. Figure 1 ;

[0018] Figure 2The structure of the coupling device described in this embodiment is shown in FIG. Figure 2 ;

[0019] Figure 3 This is an exploded view of the structure of the coupling device described in this embodiment;

[0020] Figure 4 This is a schematic diagram of the installation of the coupling device described in this embodiment during a running-in test;

[0021] Figure 5 This is a schematic diagram of the coupling device described in this embodiment being disassembled after completing the running-in test. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0026] Reference Figure 1-5 , the coupling device for urban rail vehicle wheelset running-in test as described in the embodiment of the present application includes:

[0027] The coupling 10 is provided with an inner hole 11 extending axially therethrough, and one end of the coupling 10 is provided with a flange 12;

[0028] A connector 20 is coaxially disposed within the inner hole 11 and has an interference fit with the inner hole 11. An end of the connector 20 away from the flange 12 is provided with an axial hole that has an interference fit with the gear shaft 50, and the other end is provided with a first threaded hole 22 that communicates with the interior of the axial hole, and the first threaded hole 22 matches the second threaded hole 51 at the end of the gear shaft 50.

[0029] The connecting bolt 30 is used to be inserted into the first threaded hole 22 and the second threaded hole 51 and connect the connecting head 20 and the gear shaft 50 .

[0030] When the coupling device described in the present application is in use, the connecting head 20 is connected to the end of the gear shaft 50 through the connecting bolt 30, and the coupling 10 is connected to the coupling 10 on the side of the running-in test bench through the flange 12 to perform the running-in test. It is easy to install and solves the problem of installing the gear box without the side coupling 10 on the running-in test bench, so as to ensure the normal progress of the running-in test and enable the gear box without the side coupling 10 to perform the running-in test normally.

[0031] Preferably, this embodiment also includes a protective plate 40, and the coupling 10 is further provided with a countersunk hole 13 connected to the inner hole 11 at the end thereof provided with the flange 12, and the diameter of the countersunk hole 13 is larger than the diameter of the inner hole 11, and the end of the connecting head 20 close to the flange 12 extends into the countersunk hole 13, and the protective plate 40 is installed at the end of the connecting head 20 extending out of the inner hole 11, and the outer diameter of the protective plate 40 is larger than the diameter of the inner hole 11.

[0032] Since the protective plate 40 is installed on the connecting head 20, its outer diameter is larger than the connecting head 20 and smaller than the flange 12, so that the protective plate 40 is blocked at the end of the flange 12 to prevent it from falling off during the running-in test.

[0033] Based on the above content, the connecting head 20 is provided with at least two third threaded holes 23 at one end close to the flange 12, and the protective plate 40 is provided with a fourth threaded hole 41 corresponding to the third threaded hole 23, and the mounting bolt 80 connects the protective plate 40 and the connecting head 20 through the third threaded hole 23 and the fourth threaded hole 41.

[0034] Furthermore, it also includes a process bolt 60. The connecting head 20 is provided with a fifth threaded hole 24 connected to the shaft hole. The process bolt 60 is used to tighten at the fifth threaded hole 24 after the connecting bolt 30 is removed to push the connecting head 20 and the coupling 10 away from the gear shaft 50.

[0035] After the running-in test is completed, the coupling assembly needs to be removed from the gear shaft 50. Due to the conical shape of the gear shaft 50 and the tight compression between the connector 20 and the gear shaft 50, the coupling assembly needs to be removed from the gear shaft 50 using the process bolts 60. Specifically, when disassembling the coupling assembly, the protective plate 40 is first removed from the connector 20, and then the connection bolts 30 are removed from the connector 20. The process bolts 60 are then installed in the fifth threaded hole 24 and tightened, so that the fifth threaded hole 24 pushes the connector 20 and coupling 10 away from the gear shaft 50. Preferably, there are multiple fifth threaded holes 24, and the multiple fifth threaded holes 24 are evenly distributed around the side of the first threaded hole 22.

[0036] Based on the above, a flexible gasket 70 is further included. The gasket 70 is disposed in the inner hole 11 and distributed between the end of the gear shaft 50 and the end of the connector 20. The gasket 70 is provided with a through hole 71 that matches the first threaded hole 22 and is passed through by the connecting bolt 30. The gasket 70 is distributed between the fifth threaded hole 24 and the end of the gear shaft 50. When the entire coupling assembly is disassembled, the gasket 70 can protect the end face of the gear shaft 50, preventing the process bolts 60 from directly impacting the end face of the gear shaft 50. This also prevents damage to the gear shaft 50 caused by direct contact between the disassembly bolts and the end face of the gear shaft 50, thus providing a certain degree of protection.

[0037] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A coupling device for a running-in test of urban rail vehicle wheelsets, characterized in that: include: The coupling (10) is provided with an inner hole (11) extending axially therethrough, and one end of the coupling (10) is provided with a flange (12); A connector (20) is coaxially arranged in the inner hole (11) and is interference-fitted with the inner hole (11); an end of the connector (20) away from the flange (12) is provided with an axial hole that is interference-fitted with the gear shaft (50); and the other end is provided with a first threaded hole (22) that is in communication with the interior of the axial hole, and the first threaded hole (22) matches the second threaded hole (51) at the end of the gear shaft (50); A connecting bolt (30) is used for inserting into the first threaded hole (22) and the second threaded hole (51) and connecting the connecting head (20) and the gear shaft (50).

2. The coupling device for urban rail vehicle wheelset running-in test according to claim 1, characterized in that: The coupling (10) further includes a protective plate (40), wherein the coupling (10) is provided with a countersunk hole (13) connected to the inner hole (11) at one end thereof provided with a flange (12), wherein the diameter of the countersunk hole (13) is larger than the diameter of the inner hole (11), and the end of the connector (20) close to the flange (12) extends into the countersunk hole (13), and the protective plate (40) is installed at the end of the connector (20) extending out of the inner hole (11), and the outer diameter of the protective plate (40) is larger than the diameter of the inner hole (11).

3. The coupling device for urban rail vehicle wheelset running-in test according to claim 2, characterized in that: At least two third threaded holes (23) are provided at one end of the connecting head (20) close to the flange (12), and a fourth threaded hole (41) corresponding to the third threaded hole (23) is provided on the protective plate (40), and the mounting bolt (80) connects the protective plate (40) and the connecting head (20) through the third threaded hole (23) and the fourth threaded hole (41).

4. The coupling device for urban rail vehicle wheelset running-in test according to claim 1, characterized in that: It also includes a process bolt (60), and the connecting head (20) is provided with a fifth threaded hole (24) connected to the shaft hole. The process bolt (60) is used to tighten at the fifth threaded hole (24) after the connecting bolt (30) is removed to push the connecting head (20) and the coupling (10) away from the gear shaft (50).

5. The coupling device for urban rail vehicle wheelset running-in test according to claim 4, characterized in that: There are a plurality of the fifth threaded holes (24), and the plurality of the fifth threaded holes (24) are evenly distributed around the first threaded hole (22).

6. The coupling device for urban rail vehicle wheelset running-in test according to claim 4, characterized in that: The invention also includes a gasket (70), which is arranged in the inner hole (11) and distributed between the end of the gear shaft (50) and the end of the connector (20), and the gasket (70) is provided with a through hole (71) matching the first threaded hole (22).

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