Locomotive wheel set assembly pre-tightening force comprehensive testing device

Abstract

The utility model discloses a locomotive wheel pair assembly pre -tightening force comprehensive testing arrangement, be located on the support platform and be provided with support subassembly, support subassembly includes a plurality of support pieces, the support piece can overturn the adjustment on the support platform, make the support piece can be adjusted to with support platform vertical, provide support for the wheel, or be adjusted to with support platform be located in the same plane, make the support platform can provide support for the wheel core gear, the utility model discloses the support piece is set to can rotate the adjustment, when needing to carry out the pre -tightening force test to the wheel, the support piece is rotated to with support platform vertical, through the support piece to the wheel end face and supports, when needing to carry out the pre -tightening force test to the wheel core gear, the support piece is rotated to support platform, through support platform to the wheel core gear and supports, do not need to dismouting the support piece in the testing process, and the testing operation is more convenient, has improved the efficiency of testing operation.

Description

Technical Field

[0001] This utility model belongs to the field of wheelset testing technology, specifically relating to a comprehensive testing device for the preload of locomotive wheelset assembly. Background Technology

[0002] During wheelset manufacturing, the wheel and axle are assembled using an interference fit. According to railway locomotive maintenance procedures, the assembled wheelset needs to undergo a reverse pressure test under a certain pressure. This test is repeated three times, with each instance held at the highest pressure for a specific time. The wheel and axle must not loosen, thus checking whether the preload between them meets the requirements. Existing wheelset reverse pressure testing equipment is only suitable for testing when only the wheel is mounted on the axle. It is often unsuitable when both a wheel and a hub gear are mounted on the axle, resulting in a lack of effective testing methods for reverse pressure testing of locomotive wheelsets with both hub gears and wheels.

[0003] Utility model CN215338935U discloses a device for performing a back-pressure test on a locomotive wheelset that simultaneously mounts a hub gear and a wheel. A support member is installed between the wheel and the front plate assembly. Utilizing the dimensional differences between the wheel and the hub gear, the support member supports the wheel, effectively solving the problem of interference from the hub gear affecting the preload test. However, in practical use, it has been found that for such locomotive wheelsets, it is often necessary to perform preload tests on the hub gear and the wheel separately. Using this testing device requires repeated disassembly and reassembly of the support member, resulting in high labor intensity and low testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a comprehensive testing device for the preload of locomotive wheelset assembly, so as to solve the problems of high labor intensity and low testing efficiency of existing testing devices.

[0005] This utility model is achieved through the following technical solution: A comprehensive testing device for the preload force of locomotive wheelset assembly includes a test bench, a support platform, a press, and a frame assembly for supporting the wheelset. The support platform and the press are arranged opposite to each other on the test bench. A support assembly is provided on the support platform, and the support assembly includes multiple support members. The support members can be rotated and adjusted on the support platform so that they can be adjusted to be perpendicular to the support platform to provide support for the wheels, or adjusted to be in the same plane as the support platform so that the support platform can provide support for the wheel hub gear.

[0006] In some embodiments, the support member and the support platform are rotatably connected by a pivot, allowing the support member to rotate in the horizontal plane.

[0007] In some embodiments, a plurality of locking components are provided on the support platform, the locking components being used to lock the support to restrict rotation when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform.

[0008] In some embodiments, the locking component is a ball plunger, which is horizontally positioned toward the pivot of the support member. Two V-grooves are provided on the pivot of the support member, so that when the support member is adjusted to a position perpendicular to the support platform or in the same plane as the support platform, the ball head of the ball plunger can engage in the V-grooves to lock the support member.

[0009] In some embodiments, the support assembly includes two sets of support units; The support unit includes a rotating shaft, which is rotatably connected to the support platform, and two support members are provided on the rotating shaft.

[0010] In some embodiments, a plurality of locking components are provided on the support platform, the locking components being used to lock the rotating shaft to restrict the rotation of the rotating shaft when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform.

[0011] In some embodiments, the locking component is a ball plunger, which is horizontally oriented toward the rotation shaft and has two V-shaped grooves on the rotation shaft, so that when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform, the ball head of the ball plunger can be engaged in the V-shaped grooves to lock the rotation shaft.

[0012] In some embodiments, a receiving groove is provided on the support platform to accommodate the support member, so that the support member can be stored in the support platform.

[0013] In some embodiments, the support platform includes a fixed base and a front plate assembly. The fixed base is fixedly mounted on the test bench, the front plate assembly is mounted on the fixed base and detachably connected to the fixed base, and the support assembly is mounted on the front plate assembly.

[0014] In some embodiments, the front panel assembly includes a first front panel, a second front panel, and a third front panel arranged sequentially at intervals. A U-shaped groove is formed between the first front panel and the second front panel to mate with a mounting base. The front panel assembly is mounted on the mounting base through the U-shaped groove, and the second front panel can abut against the end face of the mounting base. The support assembly is disposed between the second front plate and the third front plate. A clearance notch is provided on the third front plate to accommodate the support member, so that the support member can be housed between the second front plate and the third front plate.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: Addressing the issue of existing back-pressure testing devices requiring repeated disassembly and reassembly of support components, this invention rotates and adjusts the support component. When testing the preload of the wheel, the support component is rotated to be perpendicular to the support platform, providing support for the wheel end face. When testing the preload of the wheel hub gear, the support component is rotated into the support platform, providing support for the wheel hub gear. This eliminates the need for disassembly and reassembly of the support component during testing, making the operation more convenient and efficient. Furthermore, it avoids safety issues during disassembly and reassembly, ensures consistent support status, and prevents damage to the wheelset during testing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the test device under test conditions in an embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of the support platform structure in an embodiment of this utility model.

[0019] Figure 3 This is a side view of the front panel assembly in an embodiment of the present invention.

[0020] Figure 4 This is a front view of the front panel assembly in a supported state according to an embodiment of the present invention.

[0021] Figure 5 This is a front view of the front panel assembly in a stowed-up state in an embodiment of this utility model.

[0022] Figure 6 This is a schematic diagram of the support component on the second front plate in an embodiment of the present invention.

[0023] in: 100. Test bench; 200. Support platform; 210. Fixing seat; 220. Front panel assembly; 221. First front panel; 222. Second front panel; 223. Third front panel; 224. U-shaped notch; 225. Rib plate; 226. Clearance notch. 300. Press machine; 401. Support component; 402. Rotating shaft; 403. Ball-head plunger; 404. V-groove; 500, Bench Components; 601. Axle; 602. Wheel; 603. Gear. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The back pressure test device in utility model CN215338935U involves installing a support member on the front plate assembly during the back pressure test. The support member supports the end face of the wheel, and then the pressure unit is started to apply force to the wheel axle to conduct a preload test on the wheel. When testing the wheel core gear, the support member needs to be removed from the front plate assembly, the wheel core gear is positioned on the front plate assembly, and then the preload of the wheel core gear is tested.

[0026] Since the support components are inserted into the front panel assembly, repeated disassembly and reassembly of the support components are labor-intensive, inefficient, and pose certain safety risks. Furthermore, it is difficult to effectively ensure the installation accuracy of each support component, which affects the test results of the back pressure test and can easily damage the locomotive wheelsets.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 In some embodiments of this utility model, the comprehensive testing device for the preload force of locomotive wheelset assembly includes a test bench 100, a support platform 200, a press 300, and a frame assembly 500 for supporting the wheelset. The support platform and the press are arranged opposite to each other on the test bench. A support assembly is provided on the support platform, and the support assembly includes multiple support members 401. The support members can be rotated and adjusted on the support platform so that the support members can be adjusted to be perpendicular to the support platform to provide support for the wheels, or adjusted to be located in the same plane as the support platform so that the support platform can provide support for the wheel hub gear.

[0028] To address the problem of existing back pressure testing devices requiring repeated disassembly and reassembly of support components during testing, this embodiment configures the support component to be rotatable and adjustable. When testing the preload of the wheel, the support component is rotated to be perpendicular to the support platform, providing support for the wheel end face. When testing the preload of the wheel hub gear, the support component is rotated into the support platform, providing support for the wheel hub gear. This eliminates the need for disassembly and reassembly of the support component during testing, making the testing operation more convenient and efficient. Furthermore, it eliminates safety issues during disassembly and reassembly, ensures consistent support status, and prevents damage to the wheelset during testing.

[0029] In some embodiments, refer to Figure 2 and Figure 3 These are structural diagrams of the support component in its stowed and supported states, respectively. The support component 401 is rotatably connected to the support platform 200 via a rotating shaft, allowing the support component to rotate in the horizontal plane.

[0030] In some embodiments, multiple sets of locking components are provided on the support platform. The locking components are used to lock the support to restrict its rotation when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform.

[0031] Specifically, the locking assembly uses a ball-head plunger 403, as shown in the reference. Figure 6 The ball plunger 403 is horizontally positioned towards the pivot of the support member. Two V-grooves 404 are provided on the pivot of the support member, allowing the ball head of the plunger to engage with the V-grooves and lock the support member when the support member is adjusted to a position perpendicular to or in the same plane as the support platform. The ball plunger has a ball head that can slide horizontally. Vertically positioned V-grooves are provided on the pivot corresponding to the supported and retracted states of the support member. These V-grooves engage with the ball head, and when the ball head engages with it, a spring-loaded force locks the support member in that state.

[0032] In some embodiments, refer to Figure 3 and Figure 6 The support components include two sets of support units; The support unit includes a rotating shaft 402, which is rotatably connected to the support platform. Two support members 401 are provided on the rotating shaft 402.

[0033] When adjustment of the support components is required, only two rotating shafts need to be rotated, making adjustment of the support components more convenient. The rotating shafts are vertically mounted on the support platform, and operating handles are provided at the ends of the rotating shafts. The rotating shafts can be adjusted by rotating the operating handles.

[0034] A limiting component can be installed on the support platform to limit the position of the operating handle. When the operating handle rotates the support to the supporting state or the storage state, the limiting component can restrict the operating handle from continuing to rotate.

[0035] In some embodiments, multiple sets of locking components are provided on the support platform. The locking components are used to lock the rotating shaft to limit the rotation of the rotating shaft when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform.

[0036] Specifically, refer to Figure 6 The locking component is a ball plunger 403, which is horizontally oriented toward the rotating shaft. Two V-grooves 404 are provided on the rotating shaft so that when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform, the ball head of the ball plunger can be engaged in the V-grooves to lock the rotating shaft.

[0037] In some embodiments, a receiving groove is provided on the support platform to accommodate the support member, so that the support member can be stored in the support platform.

[0038] In some embodiments, the support platform includes a fixed base 210 and a front plate assembly 220. The fixed base 210 is fixedly mounted on the test bench 100, and the front plate assembly 220 is mounted on the fixed base and detachably connected to the fixed base. The support assembly is mounted on the front plate assembly. The detachable structure between the front plate assembly and the fixed base facilitates the replacement of the front plate assembly to adapt to the testing requirements of different wheelsets.

[0039] In some embodiments, refer to Figure 3 The front panel assembly 220 includes a first front panel 221, a second front panel 222 and a third front panel 223 arranged sequentially at intervals. A U-shaped groove is formed between the first front panel 221 and the second front panel 222 to cooperate with the fixing seat. The front panel assembly is installed on the fixing seat through the U-shaped groove, and the second front panel can abut against the end face of the fixing seat. The support assembly is positioned between the second and third front plates. A clearance notch 226 is provided on the third front plate to accommodate the support, allowing it to be retracted between the second and third front plates. A support seat that mates with the rotating shaft can be provided on the second front plate. The support seat mates with the outer circumferential surface of the rotating shaft to provide support for the rotating shaft, thereby reducing the force acting on the rotating shaft during the back pressure test.

[0040] U-shaped notches 224 are provided on the first front plate 221, the second front plate, and the third front plate to accommodate the wheel axle 601 of the wheelset. Ribs 225 are provided between the first front plate and the second front plate, and between the second front plate and the third front plate, and the ribs are arranged radially along the circumference of the U-shaped notches.

[0041] When testing the preload of a wheel, the support is rotated to be perpendicular to the support platform. The support supports the end face of the wheel 602, and the preload of the wheel shaft is tested by pressing the press. When testing the preload of a wheel core gear, the support is rotated into the support platform. The support supports the wheel core gear 603, and the wheel shaft is tested by pressing the press.

[0042] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] Furthermore, the use of terms such as "horizontal" or "vertical" in the description of this utility model does not imply that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A comprehensive testing device for the preload force of locomotive wheelset assembly, comprising a test bench, a support platform, a press, and a frame assembly for supporting the wheelset, wherein the support platform and the press are arranged opposite to each other on the test bench; characterized in that, A support assembly is provided on the support platform. The support assembly includes multiple support members. The support members can be rotated and adjusted on the support platform so that they can be adjusted to be perpendicular to the support platform to provide support for the wheel, or adjusted to be located in the same plane as the support platform so that the support platform can provide support for the wheel hub gear.

2. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 1, characterized in that, The support member is rotatably connected to the support platform via a rotating shaft, allowing the support member to rotate in the horizontal plane.

3. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 2, characterized in that, Multiple sets of locking components are provided on the support platform. The locking components are used to lock the support to restrict its rotation when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform.

4. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 3, characterized in that, The locking component is a ball plunger, which is horizontally positioned toward the pivot of the support member. Two V-shaped grooves are provided on the pivot of the support member, so that when the support member is adjusted to a position perpendicular to the support platform or in the same plane as the support platform, the ball head of the ball plunger can be engaged into the V-shaped grooves to lock the support member.

5. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 1, characterized in that, The support assembly includes two sets of support units; The support unit includes a rotating shaft, which is rotatably connected to the support platform, and two support members are provided on the rotating shaft.

6. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 5, characterized in that, Multiple sets of locking components are provided on the support platform. The locking components are used to lock the rotating shaft to restrict the rotation of the rotating shaft when the support is adjusted to a position perpendicular to the support platform or in the same plane as the support platform.

7. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 6, characterized in that, The locking component is a ball plunger, which is horizontally oriented toward the rotating shaft and has two V-shaped grooves on the rotating shaft. This allows the ball head of the ball plunger to engage with the V-shaped grooves and lock the rotating shaft when the support is adjusted to a position perpendicular to or in the same plane as the support platform.

8. The comprehensive testing device for preload preload of locomotive wheelset assembly according to any one of claims 2-7, characterized in that, The support platform is equipped with a receiving slot that can accommodate the support components, allowing the support components to be stored inside the support platform.

9. The comprehensive testing device for preload preload of locomotive wheelset assembly according to any one of claims 2-7, characterized in that, The support platform includes a fixed base and a front plate assembly. The fixed base is fixedly mounted on the test bench, and the front plate assembly is mounted on the fixed base and detachably connected to the fixed base. The support assembly is mounted on the front plate assembly.

10. The comprehensive testing device for preload preload of locomotive wheelset assembly according to claim 9, characterized in that, The front panel assembly includes a first front panel, a second front panel, and a third front panel arranged at intervals in sequence. A U-shaped groove is formed between the first front panel and the second front panel to cooperate with the fixing seat. The front panel assembly is installed on the fixing seat through the U-shaped groove, and the second front panel can abut against the end face of the fixing seat. The support assembly is disposed between the second front plate and the third front plate. A clearance notch is provided on the third front plate to accommodate the support member, so that the support member can be housed between the second front plate and the third front plate.

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