Adjustable axle box body supporting tool for balance wheel falling frame of railway vehicle

Abstract

The utility model relates to a rail vehicle balance wheel falling frame adjustable axle box body supporting tool which comprises a base, a supporting shaft arranged on the base and a connecting sleeve arranged at the upper end of the supporting shaft and further comprises an adjusting shaft, and the adjusting shaft comprises an external thread section and an optical shaft section which are sequentially arranged in the axial direction of the adjusting shaft. An internal thread in threaded fit with the external thread section is arranged in the connecting sleeve, and a fixing block and a protection block are sequentially arranged at the upper end of the optical axis section from bottom to top. The height of the tool is convenient to adjust so as to meet the requirement for supporting axle box bodies of different vehicle models, and compared with an existing tool with the large size, the tool effectively avoids damage to wheel treads in the assembling process.

Description

Technical Field

[0001] The utility model relates to the technical field of railway locomotives, in particular to an adjustable axle box support tooling for the swing wheel landing gear of a rail vehicle. Background Technique

[0002] Due to the structural characteristics that when the locomotive bogie lands, it is necessary to support the lower position of the axle box spring seat and the support position is limited. The axle box is outside the wheel pair and under the side beam of the frame. When the swing wheel lands, it is necessary to support the axle box and then carry out the assembly and landing of the primary spring; since the dimensions from the lower position of the axle box spring seat of each vehicle type to the rail surface are inconsistent, there are currently various types of axle box support toolings on site, with fixed heights, small application ranges, and large storage areas occupied. And for several vehicle types, due to the too high dimensions of the tooling, during use, it is necessary to stand the base of the support tooling on the side of the wheel and support it obliquely. This operation will cause the tread of the wheel to be knocked, resulting in quality problems, and it is not convenient to take the tooling after the landing is completed. Content of the Utility Model

[0003] Aiming at the problems existing in the prior art, the utility model provides an adjustable axle box support tooling for the swing wheel landing gear of a rail vehicle.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: an adjustable axle box support tooling for the swing wheel landing gear of a rail vehicle, including a base, a support shaft arranged on the base, and a connecting sleeve arranged at the upper end of the support shaft. It also includes an adjusting shaft. The adjusting shaft includes an external thread section and a smooth shaft section arranged in sequence along its axial direction. The connecting sleeve is internally provided with an internal thread that is threadedly matched with the external thread section. The upper end of the smooth shaft section is sequentially provided with a fixing block and a protective block from bottom to top.

[0005] As a preferred solution, the connecting sleeve is coaxially arranged with the support shaft, and a threaded counterbore that is threadedly matched with the external thread section is arranged at the upper end of the support shaft.

[0006] As a preferred solution, both the fixing block and the protective block are in a disc shape.

[0007] As a preferred solution, the fixing block and the protective block are fixedly connected by countersunk head screws.

[0008] As a preferred solution, the protective block is made of nylon material.

[0009] As a preferred solution, a handle is arranged on the outer wall of the support shaft.

[0010] As a preferred solution, the base is in a disc shape, and a plurality of sector-shaped weight-reducing holes are arranged on the base, and the plurality of sector-shaped weight-reducing holes are evenly distributed in a circumferential manner.

[0011] The beneficial effects of the present application are as follows: 1. The external thread section of the adjusting shaft of the present application is threadedly connected to the connecting sleeve. By rotating the optical shaft section, the external thread section is driven to rotate, thereby controlling the length of the external thread section spirally extending into the connecting sleeve, realizing the adjustment of the up and down height. The adjustment is convenient, which can meet the support of axle boxes of different vehicle types and has a wide range of applications. Compared with the existing tooling with a relatively high size, the present application effectively avoids damaging the wheel tread during the assembly process.

[0012] 2. By setting the handle, it is convenient to pick up the tooling, and it has strong flexibility.

[0013] 3. The protective block is disc-shaped, which is convenient for support during use. And the protective block is made of nylon material to avoid damaging the axle box during support.

[0014] 4. By setting a plurality of fan-shaped weight-reducing holes, the overall weight of the tooling is reduced, which is convenient for picking up and can reduce the labor intensity of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is Figure 1 a side view;

[0017] Figure 3 is a schematic structural view of the protective block of the present utility model;

[0018] Figure 4 is Figure 1 a top view of.

[0019] Markings in the figure: 1. Protective block, 2. Fixed block, 3. Adjusting shaft, 31. Optical shaft section, 32. External thread section, 4. Connecting sleeve, 5. Support shaft, 6. Handle, 7. Base, 71. Fan-shaped weight-reducing hole, 8. Countersunk head screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that in the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is 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 the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] Please refer to Figures 1-4 , the embodiment of the utility model provides an adjustable axle box support tool for the swing wheel landing gear of a rail vehicle, which includes a base 7, a support shaft 5 arranged on the base 7, and a connecting sleeve 4 arranged at the upper end of the support shaft 5. It further includes an adjusting shaft 3. The adjusting shaft 3 includes an external thread section 32 and a smooth shaft section 31 arranged in sequence along its axial direction. An internal thread that is thread - fitted with the external thread section 32 is provided inside the connecting sleeve 4. At the upper end of the smooth shaft section 31, a fixing block 2 and a protective block 1 are arranged in sequence from bottom to top.

[0022] Among them, the external thread section 32 and the smooth shaft section 31 are integrally formed, and the fixing block 2 is welded to the upper end of the smooth shaft section 31. Combining Figures 1-3 as shown, the connecting sleeve 4 is coaxially arranged with the support shaft 5. A threaded counterbore that is thread - fitted with the external thread section 32 is provided at the upper end of the support shaft 5. By setting the threaded counterbore, the distance that the adjusting shaft 3 can move up and down is further increased, thereby increasing the adjustment distance.

[0023] The tooling of this application includes a base 7, a support shaft 5 arranged on the base 7, a connecting sleeve 4 arranged at the upper end of the support shaft 5, and also includes an adjusting shaft 3, a fixing block 2, and a protective block 1. It is integrally in a vertical structure, small in volume, and occupies less storage area.

[0024] Specifically, combining Figure 2 , Figure 3 and Figure 4 as shown, the connecting sleeve 4 is welded to the support shaft 5. The connecting sleeve 4 is coaxially arranged with the support shaft 5, and the outer diameter of the connecting sleeve 4 is smaller than the outer diameter of the support shaft 5. Both the fixing block 2 and the protective block 1 are in a disc shape, which is convenient for support during use. The diameters of the fixing block 2 and the protective block 1 are equal, and the diameter of the fixing block 2 is equal to the diameter of the smooth shaft section 31. The fixing block 2 and the protective block 1 are fixedly connected by countersunk head screws 8. There are two countersunk head screws 8. A countersunk through - hole that cooperates with the countersunk head screw 8 is provided on the protective block 1, and a threaded hole that cooperates with the countersunk head screw 8 is provided on the fixing block 2. The protective block 1 is made of nylon material to avoid damaging the axle box during support.

[0025] In addition, a handle 6 is provided on the outer wall of the support shaft 5. The handle 6 is welded to the support shaft 5. By setting the handle 6, it is convenient to pick up the tooling, with strong flexibility. The support shaft 5 is welded to the base 7.

[0026] During the use of this application: This tooling can be applied to the support of spring seats of axle boxes of different vehicle models. First, during actual support, one or more support toolings of this application can be used according to actual on-site needs. When adjusting the height, since the external thread section 32 of the adjusting shaft 3 is threadedly connected to the connecting sleeve 4, by rotating the optical shaft section 31, the external thread section 32 can be driven to rotate, thereby controlling the length of the external thread section 32 spirally extending into the connecting sleeve 4 to achieve height adjustment. Adjust the universal tooling for axle box support to the distance from the spring seat of the axle box of the required vehicle model to the rail surface. During use, directly place the support tooling directly below the spring seat of the axle box, and then the assembly can be carried out directly according to the assembly process. After assembly, take out the axle box support tooling.

[0027] Of course, the present utility model is not limited to the above-described embodiments. Several other embodiments based on the design concept of the present utility model are provided below.

[0028] For example, in other embodiments, different from the above-described embodiments, as Figure 3 shown, the base 7 is in a disc shape, and the base 7 is provided with a plurality of fan-shaped weight-reducing holes 71. The plurality of fan-shaped weight-reducing holes 71 are circumferentially evenly distributed. The plurality of fan-shaped weight-reducing holes 71 are evenly distributed at 120 degrees on the base 7. In this embodiment, the number of fan-shaped weight-reducing holes 71 is three. By providing a plurality of fan-shaped weight-reducing holes 71, the overall weight of the tooling is reduced, which is convenient for taking and can reduce the labor intensity of employees.

[0029] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model all fall within the protection scope of the present utility model.

Claims

1. A rail vehicle swing wheel drop frame adjustable axle box support tooling, characterized in that: The invention comprises a base (7), a support shaft (5) arranged on the base (7), and a connecting sleeve (4) arranged at the upper end of the support shaft (5), and also comprises an adjusting shaft (3), wherein the adjusting shaft (3) comprises an external thread section (32) and an optical axis section (31) arranged in sequence along its axial direction, an internal thread matched with the thread of the external thread section (32) is arranged in the connecting sleeve (4), and a fixing block (2) and a protective block (1) are arranged in sequence from bottom to top at the upper end of the optical axis section (31).

2. The adjustable axle box support tooling for a rail vehicle swing wheel drop frame according to claim 1 is characterized in that: The connecting sleeve (4) is coaxially arranged with the supporting shaft (5), and the upper end of the supporting shaft (5) is provided with a threaded countersunk hole threadably matched with the external threaded section (32).

3. The adjustable axle box support tooling for a rail vehicle swing wheel drop frame according to claim 1 is characterized in that: The fixing block (2) and the protection block (1) are both disc-shaped.

4. The adjustable axle box support tooling for a rail vehicle swing wheel drop frame according to claim 3 is characterized in that: The fixing block (2) and the protection block (1) are fixedly connected by countersunk screws (8).

5. The adjustable axle box support tooling for a rail vehicle swing wheel drop frame according to claim 4 is characterized in that: The protective block (1) is made of nylon.

6. The adjustable axle box support tool for a rail vehicle swing wheel drop frame according to claim 1, characterized in that: A handle (6) is provided on the outer wall of the support shaft (5).

7. The adjustable axle box support tooling for a rail vehicle swing wheel drop frame according to claim 1, characterized in that: The base (7) is in the shape of a disk, and is provided with a plurality of fan-shaped weight-reducing holes (71), wherein the plurality of fan-shaped weight-reducing holes (71) are evenly distributed around the circumference.

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