Pantograph-catenary abrasion experiment device
By designing a bow mesh wear experimental device, the wear of carbon skateboards during actual use is simulated, and the problem of difficulty in accurately assessing the wear of carbon skateboards in the prior art is solved, and the timely replacement and maintenance costs of carbon skateboards are achieved.
Patent Information
- Application Number
- CN202420681933.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The prior art is difficult to accurately evaluate the wear and tear of the bow-net carbon skateboard during actual use, resulting in uncertain maintenance cycles and increasing maintenance costs.
Design a bow mesh wear experimental device. By simulating the working state of the carbon skateboard during the actual working process, using guides, guide rails, ring wear cables and drivers, the relative movement of the carbon skateboard and the wires are simulated, and the wear of the carbon skateboard is measured. Condition.
It can accurately evaluate the wear and tear status of carbon skateboards, provide data references, help to achieve defect pre-check and timely replacement, and reduce maintenance costs.
Smart Images
Figure CN222439319U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bow-net performance testing, and in particular to a bow-net wear test device. Background Art
[0002] The carbon slide plate on the train catenary will wear out during use because of direct contact with the conductor. This wear is also an active wear. The purpose of the wear is to protect the conductor that supplies power to the train. Because the conductor is deployed over a large area and a wide range, if the conductor is treated as a consumable part, it will face high maintenance and replacement costs.
[0003] Therefore, the carbon slide plate on the bow net is currently chosen to be used as a wearing part. In addition to the basic conductive function, the performance requirements of the carbonized plate also put forward requirements for its active wear performance. It should not be too hard, because it will cause the conductor to wear too quickly, and it should not be too soft, because it will greatly shorten the service life of the carbon slide plate, resulting in a maintenance cycle that is too short.
[0004] The hardness test of carbon slide plates is currently mostly done by using a hardness tester. The limitation of this method is that it can only obtain local hardness, and the wear of the carbon slide plates during actual working process cannot be known. This method can only obtain the performance data of the carbon slide plates, and cannot provide data reference for the actual use process. Summary of the invention
[0005] The present application provides a bow-net wear test device, which obtains the wear conditions of various parts of the carbon slide board by simulating the working state of the carbon slide board in the actual working process, and then provides a time reference for the inspection and replacement of the carbon slide board in the actual process.
[0006] The above-mentioned purpose of the present application is achieved through the following technical solutions:
[0007] The present application provides a pantograph-catenary wear test device, comprising:
[0008] Experimental bench;
[0009] A lifting bracket is arranged on the experimental table, and the lifting bracket has two parallel beams;
[0010] A guide is disposed on the crossbeam, and the guide is configured to reciprocate on the crossbeam;
[0011] A guide track is arranged on the lifting bracket;
[0012] an endless wear cable, disposed on the guide track and passing through two guides; and
[0013] The driver is arranged on the guide rail and is configured to drive the annular wear cable to rotate.
[0014] In a possible implementation of the present application, the director includes:
[0015] The main body is mounted on the beam;
[0016] An electric drive wheel, disposed on the main body and abutting against the crossbeam; and
[0017] The guide member is arranged on the main body.
[0018] In a possible implementation of the present application, the guide member includes a guide body rotatably connected to the main body and a guide hole provided on the guide body;
[0019] The swing plane of the guide body is parallel to the plane where the guide rail is located.
[0020] In a possible implementation of the present application, elastic rollers are provided on the four inner side surfaces of the guide hole.
[0021] In a possible implementation of the present application, the driver includes a symmetrically arranged motor and a roller arranged on an output shaft of the motor;
[0022] Both rollers abut against the annular wear cable.
[0023] In a possible implementation of the present application, there are multiple drivers;
[0024] A plurality of actuators are spaced apart along the annular wear cable.
[0025] In a possible implementation of the present application, the guide track includes a plurality of track segments;
[0026] There are blank sections between adjacent track segments;
[0027] The drive is deployed in the blank segment.
[0028] The beneficial effects of this application are:
[0029] The bow-net wear test device provided in the present application can obtain the actual wear conditions of various parts of the carbon slide board by simulating the working conditions of the carbon slide board in the actual process. The data can be used as a data reference for the inspection and replacement of the carbon slide board during each stage of use, which is helpful to realize the pre-inspection of defects and the timely replacement of the carbon slide board. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural schematic diagram of a bow-net wear experimental device provided in this application.
[0031] Figure 2 This is a schematic diagram provided by the present application of using a guide to change the local shape of an annular wear cable.
[0032] Figure 3 This is another schematic diagram provided by the present application of using a guide to change the local shape of an annular wear cable.
[0033] Figure 4 It is a schematic diagram of adjusting the tension of a ring-shaped wear cable provided by the present application.
[0034] Figure 5 It is a structural schematic diagram of a guide provided in this application.
[0035] Figure 6 It is a structural schematic diagram of a guide rail and a driver provided in this application.
[0036] In the figure, 1, experimental table, 2, lifting bracket, 3, guide, 4, guide track, 5, annular wear cable, 6, driver, 21, beam, 31, main body, 32, electric drive wheel, 33, guide member, 41, track segment, 42, blank segment, 61, motor, 62, roller, 331, guide body, 332, guide hole, 333, elastic roller. DETAILED DESCRIPTION
[0037] The technical solution in this application is further described in detail below in conjunction with the accompanying drawings.
[0038] The present application discloses a bow-net wear experimental device. In some examples, the bow-net wear experimental device disclosed in the present application includes a test bench 1, a lifting bracket 2, a guide 3, a guide rail 4, a ring-shaped wear cable 5 and a driver 6. The function of the test bench 1 is to fix the bow-net, that is, the bow-net participating in the experiment needs to be installed on the test bench 1. The controller of the bow-net is connected to the bow-net and then placed on the test bench 1 or on one side of the test bench 1.
[0039] See also Figure 1 , lifting bracket 2 (lifting direction reference Figure 1 The lifting bracket 2 is installed on the test bench 1, and the lifting bracket 2 can rise and fall in the vertical direction. The function of the lifting bracket 2 is to provide the working height of the pantograph. The lifting bracket 2 is provided with two parallel beams 21, and the function of the beams 21 is to cooperate with the guide 3 to adjust the posture of the annular wear cable 5. Because in the actual use scenario, the wires above the train are arranged in a Z shape, so in this application, it is also necessary to dynamically adjust the posture of the annular wear cable 5.
[0040] Guide 3 on beam 21 (reciprocating reference Figure 1 The annular wear cable 5 reciprocates on the crossbeam 21 as shown in the arrows in the figure. When the relative positions of the two guides 3 change, the inclination of the portion of the annular wear cable 5 located between the two guides 3 will also change. Figure 2 and Figure 3shown.
[0041] pass Figure 2 and Figure 3 It can be seen that the length of the annular wear cable 5 may also need to be adjusted, and its adjustment range needs to be determined according to the moving range of the guide 3. Of course, when the elastic telescopic length of the annular wear cable 5 can meet the experimental requirements, it does not need to be adjusted.
[0042] When adjustment is required, a tensioner can be added. The position of the tensioner is as follows: Figure 4 As shown, the tensioner is composed of a telescopic rod and a tensioning wheel, and the length of the portion of the annular wear cable 5 located between the two guides 3 changes dynamically, and accordingly, the length of the telescopic rod is also in dynamic change.
[0043] The guide rail 4 is installed on the lifting bracket 2, and the annular wear cable 5 is arranged on the guide rail 4 and passes through the two guides 3. Specifically, the guide rail 4 and the two guides 3 jointly support the annular wear cable 5. The driver 6 is installed on the guide rail 4, and the function of the driver 6 is to drive the annular wear cable 5 to rotate.
[0044] The bow net is installed on the experimental table 1, and the bow net is in a falling state before the experiment.
[0045] After the preparation phase begins, the lifting bracket 2 first moves to a suitable height, then the bow net rises, and the carbon slide plate on the bow net contacts the annular wear cable 5 and adjusts the contact pressure. After the adjustment is completed, the driver 6 starts to drive the annular wear cable 5 to rotate. At this time, the annular wear cable 5 and the carbon slide plate move relative to each other. The relative movement speed at this time is the formal speed of the train when it is running.
[0046] In the above process, the guide 3 on the lifting bracket 2 starts to move back and forth in a straight line, and the relative position between the portion of the annular wear cable 5 located between the two guides 3 and the carbon slide board keeps changing dynamically.
[0047] For some examples, see Figure 5 The guide 3 includes a main body 31, an electric driving wheel 32 and a guide member 33. The main body 31 is sleeved on the cross beam 21. The electric driving wheel 32 is installed on the main body 31 and abuts against the cross beam 21. When the electric driving wheel 32 rotates, the main body 31 is driven to slide back and forth on the cross beam 21.
[0048] The guide member 33 is installed on the main body 31 , and its function is to drive the annular wear cable 5 to move along with the movement of the main body 31 .
[0049] The guide member 33 includes a guide body 331 rotatably connected to the main body 31 and a guide hole 332 provided on the guide body 331 , and the annular wear cable 5 passes through the guide hole 332 on the guide body 331 .
[0050] The purpose of the rotational connection between the guide member 33 and the main body 31 is that when the posture of the annular wear cable 5 is forced to change, the passive position change of the guide member 33 can reduce the pressure between the annular wear cable 5 and the guide hole 332.
[0051] The swing plane of the guide body 331 is parallel to the plane where the guide rail 4 is located.
[0052] Furthermore, elastic rollers 333 are provided on the four inner side surfaces of the guide hole 332. The elastic rollers 333 can reduce the friction between the annular wear cable 5 and the guide hole 332, and can also reduce the vibration of the annular wear cable 5 during the rotation process.
[0053] For some examples, see Figure 6 The driver 6 includes a symmetrically arranged motor 61 and a roller 62 arranged on the output shaft of the motor 61. The two rollers 62 are both in contact with the annular wear cable 5 to drive the annular wear cable 5 to rotate.
[0054] Further, there are a plurality of drivers 6 , which are arranged at intervals along the annular wear cable 5 .
[0055] Furthermore, the guide track 4 includes a plurality of track segments 41, and there are blank segments 42 between adjacent track segments 41, and a driver 6 is deployed at each blank segment 42. The plurality of drivers 6 and the uniform deployment can better maintain the posture of the annular wear cable 5.
[0056] It should be understood that in order to realize the above-mentioned experimental process, the annular wear cable 5 needs to have a certain flexibility. If only one driver 6 is used, the annular wear cable 5 will easily be locally deformed or even stuck. When stuck, the annular wear cable 5 will no longer rotate.
[0057] After the number of drivers 6 is increased, it can be considered that each driver 6 only drives a section of the annular wear cable 5. At this time, the force distribution on the annular wear cable 5 is more uniform, which can not only make the annular wear cable 5 rotate at a faster speed, but also make the annular wear cable 5 maintain a better posture when rotating at high speed.
[0058] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A pantograph wear test device, characterized in that: include: Experimental bench (1); A lifting bracket (2) is arranged on the experimental table (1), and the lifting bracket (2) has two parallel cross beams (21); A guide (3) is disposed on the crossbeam (21), and the guide (3) is configured to reciprocate on the crossbeam (21); A guide rail (4) is provided on the lifting bracket (2); an annular wear cable (5) disposed on the guide track (4) and passing through the two guides (3); and A driver (6) is disposed on the guide rail (4), and the driver (6) is configured to drive the annular wear cable (5) to rotate.
2. The pantograph-catenary wear test device according to claim 1, characterized in that: The guide (3) comprises: A main body (31) is sleeved on the crossbeam (21); An electric drive wheel (32) is provided on the main body (31) and abuts against the crossbeam (21); and The guide member (33) is arranged on the main body (31).
3. The pantograph-catenary wear test device according to claim 2, characterized in that: The guide member (33) comprises a guide body (331) rotatably connected to the main body (31) and a guide hole (332) provided on the guide body (331); The swing plane of the guide body (331) is parallel to the plane where the guide track (4) is located.
4. The pantograph-catenary wear test device according to claim 3, characterized in that: Elastic rollers (333) are provided on the four inner side surfaces of the guide hole (332).
5. The pantograph-catenary wear test device according to any one of claims 1 to 4, characterized in that: The driver (6) comprises a symmetrically arranged motor (61) and a roller (62) arranged on an output shaft of the motor (61); Both rollers (62) abut against the annular wear cable (5).
6. The pantograph-catenary wear test device according to claim 5, characterized in that: The number of drivers (6) is multiple; A plurality of drivers (6) are arranged at intervals along the annular wear cable (5).
7. The pantograph-catenary wear test device according to claim 5, characterized in that: The guide track (4) comprises a plurality of track segments (41); There is a blank section (42) between adjacent track sections (41); The driver (6) is deployed in the blank segment (42).