Car roof jumper cable test device

Abstract

The utility model provides a car roof jumper cable test device which comprises two compartment simulation supports, a wear-resistant rubber pad and a rubber protection sleeve, wherein the wear-resistant rubber pad and the rubber protection sleeve are arranged at the ends, close to each other, of the tops of the two compartment simulation supports. The cable fixing clamps are arranged at the ends, far away from each other, of the tops of the two compartment simulation supports, the fisheye screws are arranged at the bottoms of the two compartment simulation supports respectively, the connecting rods are connected with the fisheye screws, and the hexagonal adjusting screw is connected with the connecting rods. The distance between the two carriage simulation supports can be adjusted by rotating the hexagonal adjusting screw. According to the test device, different running states of the jumper cable on the roof of the motor train unit can be quickly simulated only through simple operation of rotating the hexagonal adjusting screw rod and moving the angle limiting bolt, so that the test efficiency is greatly improved, and the test cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of roof-mounted jumper cable testing devices, and in particular to a roof-mounted jumper cable testing device. Background Technology

[0002] The roof-mounted jumper cable is a crucial electrical component for power transmission between vehicles in a high-speed train. When a train travels along curved tracks, relative misalignment and swaying occur between adjacent carriages, causing the roof-mounted jumper cable to experience varying degrees of stretching or compression as the train moves along the track. In such situations, if the cable is too long, it may slip off the protective rubber pad, risking scratches and wasting materials, thus increasing product costs. If the cable is too short, it may stretch during train operation, causing the cable joint to detach or even be damaged. Therefore, the appropriate length of the roof-mounted jumper cable is extremely important for the safe operation of the train. To simulate actual train operation, intuitively and effectively assess the usage of the jumper cable, and provide a basis for selecting the appropriate roof-mounted jumper cable length, a high-speed train roof-mounted jumper cable simulation test bench is needed.

[0003] Currently, the length of jumper cables is generally determined by simulation calculation. However, due to the differences in materials, weight, and physical properties among different jumper cables, simulation calculations are difficult to accurately determine a reasonable cable length. Therefore, the calculated jumper cable length needs further verification. The length of jumper cables is generally determined by simulation calculation, small-curve testing, or jumper cable simulation fixtures. However, simulation calculation has a high barrier to entry, the performance of cables used in actual applications is diverse, and a unified simulation calculation formula is difficult to fully consider the actual operating conditions of vehicles. Furthermore, the results of simulation calculations require further experimental verification. On the other hand, small-curve testing is costly and has a long verification cycle. Existing fixture simulation methods often use multi-vehicle, multi-model cable comprehensive simulation test benches, which deviate significantly from the actual operating conditions of jumper cables on the roof of high-speed trains. Moreover, simulating misalignment of carriages by moving components on rails does not accurately reflect the actual operating conditions of vehicles.

[0004] To address the shortcomings of existing technologies, this utility model provides a test device for jumper cables on the roof of a high-speed train, which can conveniently and quickly simulate and analyze the state of the jumper cables to be tested on the roof of the high-speed train during train operation. Utility Model Content

[0005] In view of the deficiencies in the prior art, this utility model provides a vehicle roof jumper cable testing device to solve the problems mentioned in the background art.

[0006] This utility model provides a test device for bridged cables on a vehicle roof, comprising: two vehicle compartment simulation brackets, wear-resistant rubber pads and rubber protective sleeves disposed at the close ends of the top of the two vehicle compartment simulation brackets, cable fixing clamps disposed at the far ends of the top of the two vehicle compartment simulation brackets, fisheye screws disposed at the bottom of the two vehicle compartment simulation brackets, connecting rods connected to the fisheye screws, and hexagonal adjusting screws connecting the connecting rods; the distance between the two vehicle compartment simulation brackets can be adjusted by rotating the hexagonal adjusting screws.

[0007] In one embodiment, the fisheye screw can be moved back and forth along the simulated carriage support to adjust its installation position.

[0008] In one embodiment, the bottom of the carriage simulation support is provided with a strip-shaped mounting hole, and one end of the fisheye screw is positioned by a screw set in the strip-shaped mounting hole.

[0009] In one embodiment, the hexagonal adjusting screw has both positive and negative internal threads.

[0010] In one embodiment, angle limiting bolts are respectively provided at the close ends of the bottom of the two carriage simulation supports, and the angle limiting bolts are used to limit the swing angle of the carriage simulation supports.

[0011] In one embodiment, the angle limiting bolt is slidable along the forward and backward movement direction of the carriage simulation support.

[0012] In one embodiment, the carriage simulation support is assembled from square aluminum profiles.

[0013] In one embodiment, the bottom of the carriage simulation support is provided with casters.

[0014] Beneficial effects

[0015] This utility model provides a test device for roof-mounted jumper cables:

[0016] 1) Wear-resistant rubber pads and protective rubber sleeves are practical components of EMU trains, accurately simulating the real working conditions of jumper cables on the roof of the EMU train; by setting a live-joint lifting eye screw structure, the real condition and position of the EMU train coupler can be accurately simulated; by setting a hexagonal adjusting screw, the real distance between EMU train carriages can be accurately simulated.

[0017] 2) High test accuracy: By setting an adjustable angle limit bolt structure, it can accurately simulate the relative offset and sway between adjacent carriages when the EMU is running on a curved track. Compared with traditional simulation calculation, small curve test and existing tooling simulation method, it more realistically restores the working condition of the jumper cable in actual operation, and provides a more reliable basis for judging the use of the jumper cable.

[0018] 3) Convenient operation and low cost: The test device has a simple structure and is easy to operate. Compared with the high investment cost and long verification cycle of small curve tests, this test device can quickly simulate different operating states of the jumper cable on the roof of the EMU by simply rotating the hexagonal adjusting screw and moving the angle limit bolt, which greatly improves the test efficiency and reduces the test cost. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 for Figure 1 Front view structural diagram;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure viewed from below;

[0022] Figure 4 for Figure 3 A partial structural diagram;

[0023] The components include: 1. Carriage simulation support; 2. Wear-resistant rubber pad; 3. Rubber protective sleeve; 4. Cable fixing clamp; 5. Fish-eye screw; 6. Connecting rod; 7. Hexagonal adjusting screw; 8. Jumper cable; 9. Universal wheel; 10. Angle limit bolt. Detailed Implementation

[0024] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are 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 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, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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.

[0028] Reference Figures 1 to 4 This is a specific embodiment of the present utility model.

[0029] This utility model provides a test device for a roof-mounted jumper cable, comprising: two carriage simulation brackets 1, wear-resistant rubber pads 2 and rubber protective sleeves 3 disposed at the close ends of the top of the two carriage simulation brackets 1, cable fixing clamps 4 disposed at the far ends of the top of the two carriage simulation brackets 1, fisheye screws 5 respectively disposed at the bottom of the two carriage simulation brackets 1, connecting rods 6 connected to the fisheye screws 5, and hexagonal adjusting screws 7 connecting the connecting rods 6; the distance between the two carriage simulation brackets 1 can be adjusted by rotating the hexagonal adjusting screws 7. One end of the jumper cable 8 is disposed on one carriage simulation bracket 1, and the other end is disposed on the other carriage simulation bracket 1. The tail end of the jumper cable 8 is fixed by the cable fixing clamp 4, and the front end is fitted with wear-resistant rubber pads 2 and rubber protective sleeves 3, the function of which is to simulate the actual working conditions of the jumper cable 8 on the roof of the EMU and protect the cable from scratches. The fisheye screw 5 simulates a coupler, and the installation position of the fisheye screw 5 can be adjusted according to the actual working conditions. The two carriage simulation brackets 1 are assembled by the fisheye screw 5 at the bottom, the connecting rod 6 connected to the fisheye screw 5, and the hexagonal adjusting screw 7 connected to the connecting rod 6. The distance between the two carriage simulation brackets 1 can be adjusted by rotating the hexagonal adjusting screw 7.

[0030] In one embodiment, the fisheye screw 5 can be moved back and forth along the carriage simulation bracket 1 to adjust the installation position. A long strip-shaped mounting hole is provided at the bottom of the carriage simulation bracket 1. One end of the fisheye screw 5 is installed through a screw provided in the long strip-shaped mounting hole, and the installation position can be adjusted along the length direction of the long strip-shaped mounting hole.

[0031] In one embodiment, the bottom of the carriage simulation bracket 1 is provided with a strip-shaped mounting hole, and one end of the fisheye screw 5 is positioned by a screw provided in the strip-shaped mounting hole.

[0032] In one embodiment, the hexagonal adjusting screw 7 has internal threads in both directions, and the distance between the two carriage simulation supports 1 can be adjusted simply by rotating the hexagonal adjusting screw 7.

[0033] In one embodiment, angle limiting bolts 10 are respectively provided at the close ends of the bottom of the two carriage simulation support 1. The angle limiting bolts 10 are used to limit the swing angle of the carriage simulation support 1, simulate the swing range of the carriage when the train is running, and more realistically restore the actual operating conditions.

[0034] In one embodiment, the angle limiting bolt 10 can slide along the forward and backward movement direction of the carriage simulation support 1, and the installation position of the angle limiting bolt 10 can be adjusted according to the actual working conditions.

[0035] In one embodiment, the carriage simulation support 1 is assembled from square aluminum profiles.

[0036] In one embodiment, the bottom of the carriage simulation support 1 is provided with casters 9.

[0037] Beneficial effects

[0038] This utility model provides a test device for roof-mounted jumper cables:

[0039] 1) Wear-resistant rubber pads 2 and protective rubber sleeves are practical parts for EMU trains, accurately simulating the real working conditions of jumper cables 8 on the roof of the EMU train; by setting a live-joint lifting eye screw structure, the real condition and position of the EMU train coupler can be accurately simulated; by setting a hexagonal adjusting screw 7, the real distance between EMU train carriages can be accurately simulated.

[0040] 2) High test accuracy: By setting the adjustable angle limit bolt 10 structure, it can accurately simulate the relative offset and sway between adjacent carriages when the EMU is running on a curved track. Compared with traditional simulation calculation, small curve test and existing tooling simulation method, it more realistically restores the working condition of the jumper cable 8 in actual operation, and provides a more reliable basis for judging the use of the jumper cable 8.

[0041] 3) Convenient operation and low cost: The test device has a simple structure and is easy to operate. Compared with the high investment cost and long verification cycle of small curve test, this test device can quickly simulate different operating states of the jumper cable 8 on the roof of the EMU by simply rotating the hexagonal adjusting screw 7 and moving the angle limiting bolt 10, which greatly improves the test efficiency and reduces the test cost.

[0042] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A roof cross-cable test device, characterized by, The utility model relates to a two-carriage simulation support, which comprises a wear-resistant rubber pad and a rubber protective sleeve arranged at one end of the top of the two-carriage simulation support, a cable fixing clamp arranged at the other end of the top of the two-carriage simulation support, fisheye screws arranged at the bottom of the two-carriage simulation support respectively, a connecting rod connected with the fisheye screws, and a hexagonal adjusting screw connected with the connecting rod. The fisheye screws can be moved back and forth along the two-carriage simulation support to adjust the installation position.

2. The roof cross-cable test device of claim 1, wherein, The bottom of the two-carriage simulation support is provided with a strip-shaped mounting hole, and one end of the fisheye screw is positioned by a screw arranged in the strip-shaped mounting hole.

3. The roof cross-cable test device of claim 2, wherein, The hexagonal adjusting screw is provided with positive and negative internal teeth.

4. The roof cross-cable test device of claim 1, wherein, The bottom of the two-carriage simulation support is provided with angle limiting bolts at one end respectively, which are used to limit the swing angle of the two-carriage simulation support.

5. The roof cross-cable test device of claim 1, wherein, The angle limiting bolts can slide along the front-to-back movement direction of the two-carriage simulation support.

6. The roof cross-cable test device of claim 5, wherein, The two-carriage simulation support is assembled by square aluminum profiles.

7. The roof cross-cable test device of claim 1, wherein, The bottom of the two-carriage simulation support is provided with universal wheels.

8. The roof cross-cable test device of claim 1, wherein, ​

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