Rotating arm supporting tool for bogie wheel of passenger train

Abstract

The rotating arm supporting tool comprises a mandrel sleeve, a bearing and a rubber wheel, a rotating arm is sleeved with the mandrel sleeve through a first inner through hole and locked through a first bolt, the periphery of the mandrel sleeve is sleeved with the bearing and fixed through a first clamping spring, the periphery of the bearing is sleeved with the rubber wheel, and the rubber wheel is fixed through a second clamping spring. And the second clamping spring is used for fixing. According to the rotating arm supporting tool, through the combination of the mandrel sleeve, the bearing and the rubber wheel, the bogie rotating arm is effectively prevented from making contact with the ground during storage and transportation, collision and damage are avoided, meanwhile, the installation process is simplified, manpower and time are saved, the structure is firm and durable, repeated use can be achieved, and the use cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of auxiliary tooling for railway passenger car production, and in particular to a swing arm support tooling for a railway passenger car bogie wheel. Background Art

[0002] After the bogie wheelset of a railway passenger car is assembled, the axle box swing arm is in contact with the ground, which is prone to collision during storage and transportation. In severe cases, the swing arm may be damaged beyond the limit and cannot be used for trial use. Wooden boards or metal brackets are now used to support the swing arm nodes to prevent them from falling to the ground and being damaged.

[0003] The disadvantages of using wooden boards or metal brackets to support the pivot joints are:

[0004] (1) It can only ensure that the wheelset is stored on site after assembly, but cannot be protected during transportation;

[0005] (2) At the same time, the boom nodes need to be manually lifted during transportation, which is time-consuming and labor-intensive. Utility Model Content

[0006] The purpose of the present application is to provide a swivel arm support fixture for a railway passenger car bogie wheel. By using the swivel arm support fixture, the swivel arm can be effectively protected after the wheelset axle box is assembled. The operation is simple, and time and labor are saved. It also ensures that the swivel arm does not need to be manually lifted during transportation after the wheelset axle box is assembled, and it has its own rotating mechanism, which can effectively protect it.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A swing arm support tooling for a railway passenger car bogie wheel includes a core shaft sleeve, a bearing and a rubber wheel. The core shaft sleeve is sleeved on the swing arm through a first inner through hole and is locked by a first bolt. The bearing is sleeved on the outer circumference of the core shaft sleeve and is fixed by a first retaining spring. The rubber wheel is sleeved on the outer circumference of the bearing and is fixed by a second retaining spring.

[0009] Furthermore, the rubber wheel includes a wheel hub and a wheel body, and the wheel body is locked on the wheel hub by a second bolt.

[0010] Furthermore, the wheel body is made of nylon material.

[0011] Furthermore, the first retaining spring includes a first inner retaining spring and a first outer retaining spring, the core sleeve is provided with a first retaining groove corresponding to the first inner retaining spring, and the core sleeve is provided with a second retaining groove corresponding to the first outer retaining spring, the first inner retaining spring is embedded in the first retaining groove and the first outer retaining spring is embedded in the second retaining groove to constrain the axial movement of the inner ring of the bearing.

[0012] Furthermore, a third retaining groove is provided on the second inner through hole of the wheel hub, the second retaining spring is embedded in the third retaining groove, a retaining ring portion is provided on the outer side of the wheel hub, and the second retaining spring cooperates with the retaining ring portion to constrain the axial movement of the outer ring of the bearing.

[0013] The beneficial effects of this application are:

[0014] (1) The present application uses a combination of a core shaft sleeve, a bearing and a rubber wheel, and the tooling can be tightly mounted on the swing arm of the bogie, thereby effectively preventing the swing arm from contacting the ground during storage and transportation, thereby avoiding bumps and damage.

[0015] (2) Compared with traditional wooden boards or metal brackets, this tooling adopts a simpler and more efficient structural design. Once the tooling is properly installed on the swing arm, there is no need to manually lift or support the swing arm, which greatly saves manpower and time.

[0016] (3) The tooling structure is sturdy and durable and can be reused many times after simple maintenance and care, thus reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a structure in which a rotating arm is provided at the end of a railway passenger car bogie wheel provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of a railway passenger car bogie wheel provided in an embodiment of the present application after the swing arm is unsupported and in contact with the bottom surface;

[0019] Figure 3 A schematic diagram of a structure in which a rotating arm of a bogie wheel for transporting a railway passenger car needs to be manually lifted, provided in one embodiment of the present application;

[0020] Figure 4 A schematic diagram of the structure of a railway passenger car bogie wheel when the rotating arm and the supporting tooling are separated according to an embodiment of the present application;

[0021] Figure 5 A schematic diagram of the structure of a railway passenger car bogie wheel after the swing arm and the support tooling are assembled according to an embodiment of the present application;

[0022] Figure 6 A schematic diagram of the structure of a support tooling provided in one embodiment of the present application;

[0023] Figure 7 A schematic diagram of the structure of the support tooling after decomposition provided in one embodiment of the present application;

[0024] Figure 8 A cross-sectional view of a support tooling provided in one embodiment of the present application;

[0025] Description of reference numerals:

[0026] 1. Mandrel sleeve; 2. Bearing; 3. Rubber wheel; 4. First bolt; 5. First retaining spring; 6. Second retaining spring;

[0027] 31. wheel hub; 32. wheel body;

[0028] 51. first inner retaining spring; 52. first outer retaining spring;

[0029] 11. First card slot; 12. Second card slot;

[0030] 311, third card slot; DETAILED DESCRIPTION

[0031] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 3 As shown, a swing arm a is provided at the end of the railway passenger car bogie wheel b, and the swing arm is free to rotate around the rotating shaft without constraints; during the storage and transportation of the railway passenger car bogie wheel b, if there is no supporting structure to support the swing arm a, the swing arm will contact with the ground and cause collision, resulting in damage to the swing arm, and the swing arm needs to be lifted manually during transportation to prevent it from contacting the bottom surface.

[0033] like Figures 4 to 8 As shown, a swing arm support tool c of a railway passenger car bogie wheel comprises a core shaft sleeve 1, a bearing 2 and a rubber wheel 3. The core shaft sleeve 1 is sleeved on the swing arm through a first inner through hole and is locked by a first bolt 4. The bearing 2 is sleeved on the outer periphery of the core shaft sleeve 1 and is fixed by a first retaining spring 5. The rubber wheel 3 is sleeved on the outer periphery of the bearing 2 and is fixed by a second retaining spring 6. The swing arm support tool of the present application effectively prevents the bogie swing arm from contacting the ground during storage and transportation through the combination of the core shaft sleeve 1, the bearing 2 and the rubber wheel 3, thereby avoiding damage caused by collision. At the same time, it simplifies the installation process, saves manpower and time, and has a sturdy and durable structure, which can be reused and reduces the use cost.

[0034] like Figure 7 As shown, in this embodiment, the rubber wheel 3 includes a wheel hub 31 and a wheel body 32, and the wheel body 32 is locked on the wheel hub 31 by a second bolt. The wheel body 32 is locked on the wheel hub 31 by bolts, and this detachable design allows for convenient and quick operation when replacement or maintenance is required, thereby reducing maintenance costs.

[0035] In this embodiment, the wheel body 32 is made of nylon material. The wheel body 32 made of nylon material has excellent wear resistance, can maintain a good shape and performance in long-term use, is not easy to wear, thereby extending the service life of the tooling.

[0036] like Figure 8 As shown, in this embodiment, the first retaining spring 5 includes a first inner retaining spring 51 and a first outer retaining spring 52, the core sleeve 1 is provided with a first retaining groove 11 corresponding to the first inner retaining spring 51, and the core sleeve 1 is provided with a second retaining groove 12 corresponding to the first outer retaining spring 52, and the first inner retaining spring 51 is embedded in the first retaining groove 11 and the first outer retaining spring 52 is embedded in the second retaining groove 12 to constrain the axial movement of the inner ring of the bearing 2. The first inner retaining spring 51 and the first outer retaining spring 52 match the retaining groove on the core sleeve 1, making the installation of the bearing 2 easier and faster, and improving the work efficiency. Through the constraints of the two inner and outer retaining springs, the inner ring of the bearing 2 is firmly fixed on the core sleeve 1, effectively preventing the loosening or displacement of the bearing 2 during operation, and ensuring the stability and reliability of the tooling. When the bearing 2 needs to be repaired or replaced, the bearing 2 can be easily disassembled by simply opening the retaining spring, which simplifies the maintenance process and reduces the maintenance cost.

[0037] like Figure 8 As shown, in this embodiment, a third clamping groove 311 is provided on the second inner through hole of the hub 31, and the second clamping spring 6 is embedded in the third clamping groove 311. A retaining ring is provided on the outer side of the hub 31, and the second clamping spring 6 cooperates with the retaining ring to constrain the axial movement of the outer ring of the bearing 2. The second clamping spring 6 is embedded in the third clamping groove 311 and the retaining ring cooperates with the outer ring of the bearing 2, so that the outer ring of the bearing 2 is double-fixed, ensuring the stability and reliability of the bearing 2 on the tooling. The double fixing mechanism effectively prevents the axial movement and falling off of the bearing 2 during operation, and reduces the safety risks caused by the failure of the bearing 2.

[0038] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0039] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0040] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In addition, the terms "may include" and "have" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or devices.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A swing arm support tooling for a railway passenger car bogie wheel, characterized in that: It includes a core sleeve, a bearing and a rubber wheel. The core sleeve is sleeved on the rotating arm through a first inner through hole and is locked by a first bolt. The bearing is sleeved on the outer circumference of the core sleeve and is fixed by a first retaining spring. The rubber wheel is sleeved on the outer circumference of the bearing and is fixed by a second retaining spring.

2. The swing arm support tooling of a railway passenger car bogie wheel according to claim 1, characterized in that: The rubber wheel comprises a wheel hub and a wheel body, and the wheel body is locked on the wheel hub by a second bolt.

3. The swing arm support tooling of a railway passenger car bogie wheel according to claim 2, characterized in that: The wheel body is made of nylon material.

4. The swing arm support tooling of a railway passenger car bogie wheel according to claim 2, characterized in that: The first retaining spring includes a first inner retaining spring and a first outer retaining spring. The core sleeve is provided with a first retaining groove corresponding to the first inner retaining spring, and the core sleeve is provided with a second retaining groove corresponding to the first outer retaining spring. The first inner retaining spring is embedded in the first retaining groove and the first outer retaining spring is embedded in the second retaining groove to constrain the axial movement of the inner ring of the bearing.

5. The swing arm support tooling of a railway passenger car bogie wheel according to claim 4, characterized in that: A third retaining groove is arranged on the second inner through hole of the wheel hub, the second retaining spring is embedded in the third retaining groove, a retaining ring is arranged on the outer side surface of the wheel hub, and the second retaining spring cooperates with the retaining ring to constrain the axial movement of the outer ring of the bearing.

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