Pantograph test device and test method

Abstract

The invention relates to the technical field of pantograph test, and discloses a pantograph test device and method, and the device comprises a test bench, the top end of the test bench is provided with a simulation vehicle body, and the two sides of the top end of the simulation vehicle body are provided with test pantographs; the cable assembly comprises a supporting frame and a cable simulation part, the supporting frame is fixedly connected to the top end of the test board, the cable simulation part is arranged on the supporting frame, and the two test pantographs are in contact with the cable simulation part; the adjusting assembly comprises a supporting table and an adjusting part, the supporting table is fixedly connected to the top end of the test table, the adjusting part is arranged on the supporting table, and the driving road condition of the simulated vehicle body is simulated through the adjusting part, so that a plurality of movement conditions are generated between the test pantograph and the cable simulation part. According to the invention, aiming at a double-end pantograph structure, the test between the pantograph and the cable is realized when a vehicle runs under different road conditions, and the accuracy of test data is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of pantograph testing, and in particular to a pantograph testing device and a testing method. Background Art

[0002] Bulk commodities (crude oil, steel, coal, etc.) short-haul logistics equipment such as traditional heavy trucks have disadvantages such as high energy consumption and serious pollution. At the same time, their logistics costs are continuously increasing and safety accidents occur frequently. Therefore, new energy vehicles are the preferred solution in the key transformation projects of the conversion of new and old kinetic energy.

[0003] A dual-source power truck is a new energy truck with dual energy sources. It draws electricity from the grid by controlling the pantograph to maintain good contact with the grid and provides power for the drive motor. For new energy trucks with a single pantograph structure, the pantograph structure usually adopts a single slide plate structure, which requires the new energy truck to add additional components to connect to the ground to form a power circuit, which will correspondingly reduce the driving speed and driving safety of the new energy truck. At the same time, the pantograph is a fully charged structure, which is easy to cause safety accidents. Therefore, in order to solve the above problems, the existing technology installs a double-headed pantograph structure on the truck to improve its safety.

[0004] Due to the variability of transportation conditions, the pantograph, a key part of the power grid, is required to be reliable, accurately controlled, and flexible in movement. Therefore, it is usually necessary to test the pantograph to ensure its stability in subsequent use. In the prior art, the test of the pantograph is usually only to test the relative displacement between the single pantograph structure and the cable, and it is impossible to achieve the simulation test between the double-headed pantograph structure and the cable on the vehicle under different road conditions, and thus it is impossible to provide corresponding test data.

[0005] Therefore, there is an urgent need for a pantograph testing device and a testing method to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a pantograph testing device and a testing method to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above object, the present invention provides the following solution: The present invention provides a pantograph testing device, comprising:

[0008] A test bench, a simulated vehicle body is placed on the top of the test bench, and test pantographs are arranged on both sides of the top of the simulated vehicle body;

[0009] A cable assembly comprises a support frame and a cable simulation member, wherein the support frame is fixedly connected to the top of the test bench, the cable simulation member is arranged on the support frame, and the two test pantographs are respectively arranged in contact with the cable simulation member;

[0010] The adjustment component includes a support platform and an adjustment member, wherein the support platform is fixedly connected to the top of the test bench, and the adjustment member is arranged on the support platform. The driving condition of the simulated vehicle body is simulated by the adjustment member so that several movement conditions are generated between the test pantograph and the cable simulation member.

[0011] According to a pantograph testing device provided by the present invention, the cable simulation part includes two rotating rollers installed on both sides of the top of the support frame, the two ends of the rotating rollers are respectively fixedly connected with first guide wheels, a simulated cable is sleeved between the two first guide wheels located at the same end of the two rotating rollers, the two simulated cables between the two rotating rollers are arranged in parallel, and the bottom ends of the two simulated cables are respectively arranged in contact with the two test pantographs.

[0012] A pantograph testing device provided according to the present invention also includes a support member, which includes two vertical support rods fixedly connected to the support frame, a first transverse support rod fixedly connected to the middle of the vertical support rod, second guide wheels are respectively installed at both ends of the first transverse support rod, and the second guide wheels are arranged in contact with the upper part of the simulated cable, a second transverse support rod is slidably connected to the bottom end of the vertical support rod, third guide wheels are respectively installed at both ends of the second transverse support rod, and the third guide wheels are arranged in contact with the lower part of the simulated cable, and the test pantograph is located between the two third guide wheels on the same simulated cable.

[0013] According to a pantograph testing device provided by the present invention, the second transverse support rod includes a main support tube, the top end of the main support tube is sleeved on the bottom end of the vertical support rod, both ends of the main support tube are hinged with one end of two side rods, and the third guide wheel is installed at the other end of the side rod.

[0014] According to a pantograph testing device provided by the present invention, one end of a first spring is fixedly connected inside the main support tube, the other end of the first spring is fixedly connected to the bottom end of the vertical support rod, a torsion spring is arranged between the side rod and the main support tube, and both ends of the torsion spring are fixedly connected to the side rod and the main support tube respectively.

[0015] According to a pantograph testing device provided by the present invention, the adjusting member includes a screw slide fixedly connected to the top of the support platform, a six-axis movable platform and a driving member are fixedly connected to the screw slide, connecting members are arranged on both sides of the support platform, both ends of the simulated vehicle body are respectively connected to the connecting members, and are configured to connect the six-axis movable platform / the driving member to the simulated vehicle body through the sliding of the screw slide.

[0016] According to a pantograph testing device provided by the present invention, the driving member includes a driving groove, driving rollers are rotatably connected on both sides of the driving groove, a simulated moving belt is sleeved between the two driving rollers, the moving wheel at the bottom end of the simulated vehicle body is located on the simulated moving belt, and a plurality of protrusions are provided on the simulated moving belt for simulating a plurality of road conditions.

[0017] According to a pantograph testing device provided by the present invention, the connecting part includes a supporting plate fixedly connected to the top of the supporting platform, a frame fixedly connected to the supporting plate, one end of a first connecting frame is hinged to the top and bottom of the frame respectively, a second connecting frame is arranged between the other ends of the two first connecting frames, the two ends of the second connecting frame are respectively hinged to the two first connecting frames through a spherical structure, a through hole is opened in the middle of the second connecting frame, a connecting rod is slidably connected in the through hole, and one end of the connecting rod is hinged to the side wall of the simulated vehicle body.

[0018] According to a pantograph testing device provided by the present invention, one end of a column is hinged on the top of the frame, a sleeve is sleeved on the column, one end of the sleeve is hinged to the first connecting frame located below, a second spring is sleeved on the sleeve, and the other end of the second spring is fixedly connected to the column.

[0019] A pantograph testing method comprises the following steps:

[0020] Installing the simulated vehicle body on the adjusting member;

[0021] Controlling the test pantograph to contact the cable simulation component;

[0022] The test pantograph is tested by generating relative displacement between the cable simulation component and the test pantograph and simulating different driving conditions on the simulated vehicle body through the adjustment component.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] The present invention provides a pantograph testing device and testing method, wherein a test pantograph is installed on a simulated vehicle body. During the test, the simulated vehicle body is installed on an adjusting member, and the test pantograph is connected to a cable simulation member. The relative displacement between the cable simulation member and the test pantograph is generated by the movement of the cable simulation member, and the driving of the simulated vehicle body under different road conditions is simulated by the set adjusting member, thereby realizing the testing of the test pantograph under different road conditions and ensuring the accuracy of the test data. The present application is directed to a double-headed pantograph structure, and can realize the testing between the pantograph and the cable when the vehicle is driving under different road conditions, thereby ensuring the accuracy of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the adjusting member of the present invention;

[0028] Figure 3 This is a schematic diagram of the distribution of the first transverse support rod and the second transverse support rod of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the driving member of the present invention;

[0030] Among them, 1. test bench; 2. simulated vehicle body; 3. test pantograph; 4. support frame; 5. support platform; 6. rotating roller; 7. first guide wheel; 8. simulated cable; 9. vertical support rod; 10. first lateral support rod; 11. second guide wheel; 12. second lateral support rod; 121. main support tube; 122. side rod; 123. first spring; 124. torsion spring; 13. third guide wheel; 14. lead screw slide; 15. six-axis mobile platform; 16. drive slot; 17. drive roller; 18. simulated moving belt; 19. support plate; 20. frame; 21. first connecting frame; 22. second connecting frame; 23. through hole; 24. connecting rod; 25. column; 26. sleeve; 27. second spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1-Figure 4 , the present invention provides:

[0034] A test bench 1, a simulated vehicle body 2 is placed on the top of the test bench 1, and test pantographs 3 are arranged on both sides of the top of the simulated vehicle body 2;

[0035] The cable assembly includes a support frame 4 and a cable simulation component. The support frame 4 is fixedly connected to the top of the test bench 1. The cable simulation component is arranged on the support frame 4. Two test pantographs 3 are respectively arranged in contact with the cable simulation component.

[0036] The adjustment component includes a support platform 5 and an adjustment member. The support platform 5 is fixedly connected to the top of the test bench 1. The adjustment member is arranged on the support platform 5. The driving condition of the vehicle body 2 is simulated by the adjustment member so that several movement conditions are generated between the test pantograph 3 and the cable simulation member.

[0037] In one embodiment of the present invention, a test pantograph 3 is installed on a simulated vehicle body 2. During testing, the simulated vehicle body 2 is installed on an adjusting member, and the test pantograph 3 is connected to a cable simulation member. A relative displacement is generated between the cable simulation member and the test pantograph 3 through movement, and the driving of the simulated vehicle body 2 under different road conditions is simulated by means of the set adjusting member, thereby realizing testing of the test pantograph 3 under different road conditions and ensuring the accuracy of the test data.

[0038] As an optional embodiment, the cable simulation component includes two rotating rollers 6 installed on both sides of the top of the support frame 4, and the two ends of the rotating rollers 6 are respectively fixedly connected to the first guide wheels 7, and a simulated cable 8 is sleeved between the two first guide wheels 7 located at the same end of the two rotating rollers 6. The two simulated cables 8 between the two rotating rollers 6 are arranged in parallel, and the bottom ends of the two simulated cables 8 are respectively arranged in contact with the two test pantographs 3.

[0039] In one embodiment of the present invention, the rotating roller 6 is controlled to rotate by a separate driving motor, and the two simulated cables 8 are driven to rotate by the rotating roller 6, and the simulated vehicle body 2 is cooperated to simulate the driving process of the pantograph on the vehicle mounted on the cable, thereby realizing the test pantograph 3.

[0040] As an optional embodiment, it also includes a support member, which includes two vertical support rods 9 fixedly connected to the support frame 4, a first transverse support rod 10 fixedly connected to the middle of the vertical support rod 9, second guide wheels 11 are respectively installed at both ends of the first transverse support rod 10, and the second guide wheel 11 is arranged in contact with the upper part of the simulated cable 8, a second transverse support rod 12 is slidably connected to the bottom end of the vertical support rod 9, third guide wheels 13 are respectively installed at both ends of the second transverse support rod 12, and the third guide wheel 13 is arranged in contact with the lower part of the simulated cable 8, and the test pantograph 3 is located between the two third guide wheels 13 on the same simulated cable 8.

[0041] In one embodiment of the present invention, the vertical support rod 9 is fixedly connected to the support frame 4, and the simulated cable 8 is supported by the first transverse support rod 10, the second transverse support rod 12, the second guide wheel 11, and the third guide wheel 13, thereby ensuring the horizontality of the simulated cable 8.

[0042] As an optional embodiment, the second transverse support rod 12 includes a main support tube 121, the top end of the main support tube 121 is sleeved on the bottom end of the vertical support rod 9, both ends of the main support tube 121 are hinged to one end of the two side rods 122, and the third guide wheel 13 is installed at the other end of the side rod 122.

[0043] As an optional embodiment, one end of a first spring 123 is fixedly connected inside the main support tube 121, the other end of the first spring 123 is fixedly connected to the bottom end of the vertical support rod 9, a torsion spring 124 is arranged between the side rod 122 and the main support tube 121, and both ends of the torsion spring 124 are fixedly connected to the side rod 122 and the main support tube 121 respectively.

[0044] In one embodiment of the present invention, the main support tube 121 is connected to the vertical support rod 9 through a first spring 123, and the hinged side rod 122 is connected to the main support tube 121 through a torsion spring 124. The first spring 123 and the torsion spring 124 are used to reduce vibration of the simulated cable 8, thereby ensuring the service life of the simulated cable 8.

[0045] As an optional embodiment, the adjusting member includes a screw slide 14 fixedly connected to the top of the support platform 5, and a six-axis mobile platform 15 and a driving member are fixedly connected to the screw slide 14. Connecting members are provided on both sides of the support platform 5, and the two ends of the simulated vehicle body 2 are respectively connected to the connecting members, and are configured to connect the six-axis mobile platform 15 / driving member to the simulated vehicle body 2 through the sliding of the screw slide 14.

[0046] In one embodiment of the present invention, the six-axis mobile platform 15 and the driving member are controlled by a lead screw slide 14 to switch between them, and are respectively connected to a simulated vehicle body 2 to implement testing of the pantograph 3 on the simulated vehicle body 2 under different conditions.

[0047] As an optional embodiment, the driving member includes a driving groove 16, and driving rollers 17 are rotatably connected on both sides of the driving groove 16. A simulated moving belt 18 is sleeved between the two driving rollers 17. The moving wheel at the bottom end of the simulated vehicle body 2 is located on the simulated moving belt 18. The simulated moving belt 18 is provided with a number of protrusions for simulating several road conditions.

[0048] In one embodiment of the present invention, the driving roller 17 is controlled to rotate by a separate driving motor, and the rotation of the two driving rollers 17 drives the simulated moving belt 18 to move. When the position of the simulated vehicle body 2 is different, the movement of the simulated moving belt 18 is set to simulate the movement of the vehicle on the road in reality. At the same time, a number of protrusions are set to simulate different road conditions, that is, the unevenness, inclination and other different road conditions are simulated by the set protrusions, thereby further improving the real effect and ensuring the accuracy of the data.

[0049] As an optional embodiment, the connecting member includes a support plate 19 fixedly connected to the top of the support platform 5, a frame 20 fixedly connected to the support plate 19, one end of a first connecting frame 21 is hinged to the top and bottom of the frame 20 respectively, a second connecting frame 22 is arranged between the other ends of the two first connecting frames 21, the two ends of the second connecting frame 22 are respectively hinged to the two first connecting frames 21 through a spherical structure, a through hole 23 is opened in the middle of the second connecting frame 22, a connecting rod 24 is slidably connected in the through hole 23, and one end of the connecting rod 24 is hinged to the side wall of the simulated vehicle body 2.

[0050] In one embodiment of the present invention, a second connecting frame 22 is connected between two first connecting frames 21 by a ball joint connection, and a simulated vehicle body 2 is connected to the second connecting frame 22 by a sliding connecting rod 24. When the simulated vehicle body 2 is tested on the simulated moving belt 18, the simulated vehicle body 2 is relatively stably connected to the simulated moving belt 18 by the connecting rod 24 when driving according to different road conditions.

[0051] As an optional embodiment, one end of a column 25 is hinged at the top of the frame 20, a sleeve 26 is sleeved on the column 25, one end of the sleeve 26 is hinged to the first connecting frame 21 located below, a second spring 27 is sleeved on the sleeve 26, and the other end of the second spring 27 is fixedly connected to the column 25.

[0052] In one embodiment of the present invention, the sleeve 26 and the column 25 slide relative to each other, and a second spring 27 is provided for buffering, thereby simulating the vibration generated during the driving of the vehicle and further improving the accuracy of the test data.

[0053] A pantograph testing method comprises the following steps:

[0054] Installing the simulated vehicle body 2 on the adjusting member;

[0055] Control the test pantograph 3 to contact with the cable simulation component;

[0056] The test pantograph 3 is tested by generating a relative displacement between the cable simulation component and the test pantograph 3 and simulating different driving conditions on the simulated vehicle body 2 through the adjusting component.

[0057] In one embodiment of the present invention, the present application is divided into two simulation states:

[0058] The first simulation state: the simulated vehicle body 2 is fixedly connected to the six-axis mobile platform 15, and the six-axis mobile platform 15 is set to simulate different conditions of the vehicle, such as tilted road conditions, so that the test pantograph 3 is in contact with the simulated cable 8 to perform a simulation test, that is, the simulated vehicle body 2 is in a certain fixed condition, and a static road condition simulation test is performed on the test pantograph 3 under a certain specific road condition.

[0059] In the second simulation state, the positions of the six-axis mobile platform 15 and the driving slot 16 are adjusted by the provided screw slide 14, so that the simulated vehicle body 2 is located on the simulated moving belt 18 in the driving slot 16. Several protrusions provided on the simulated moving belt 18 are used to simulate different road conditions, such as bumps, tilts, etc. The simulated cable 8 is in contact with the test pantograph 3. By simulating the movement of the simulated cable 8 and the movement of the simulated moving belt 18, a dynamic road condition simulation test of the simulated vehicle body 2 driving under different road conditions is provided for the test pantograph 3, thereby further ensuring the accuracy of the test data.

[0060] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A pantograph testing device, characterized in that: include: A test bench (1), wherein a simulated vehicle body (2) is placed on the top of the test bench (1), and test pantographs (3) are arranged on both sides of the top of the simulated vehicle body (2); A cable assembly comprises a support frame (4) and a cable simulation component, wherein the support frame (4) is fixedly connected to the top of the test bench (1), the cable simulation component is arranged on the support frame (4), and the two test pantographs (3) are respectively arranged in contact with the cable simulation component; The adjustment component comprises a support platform (5) and an adjustment member, wherein the support platform (5) is fixedly connected to the top of the test platform (1), and the adjustment member is arranged on the support platform (5). The driving condition of the simulated vehicle body (2) is simulated by the adjustment member so that a plurality of movement conditions are generated between the test pantograph (3) and the cable simulation member.

2. A pantograph testing device according to claim 1, characterized in that: The cable simulation component comprises two rotating rollers (6) installed on both sides of the top of the support frame (4), the two ends of the rotating rollers (6) are respectively fixedly connected with first guide wheels (7), a simulation cable (8) is sleeved between the two first guide wheels (7) located at the same end of the two rotating rollers (6), the two simulation cables (8) between the two rotating rollers (6) are arranged in parallel, and the bottom ends of the two simulation cables (8) are respectively arranged in contact with the two test pantographs (3).

3. A pantograph testing device according to claim 2, characterized in that: It also includes a support member, which includes two vertical support rods (9) fixedly connected to the support frame (4), a first transverse support rod (10) fixedly connected to the middle of the vertical support rod (9), second guide wheels (11) respectively installed at both ends of the first transverse support rod (10), and the second guide wheel (11) is arranged in contact with the upper part of the simulated cable (8), and the bottom end of the vertical support rod (9) is slidably connected to the second transverse support rod (12), and third guide wheels (13) are respectively installed at both ends of the second transverse support rod (12), and the third guide wheel (13) is arranged in contact with the lower part of the simulated cable (8), and the test pantograph (3) is located between the two third guide wheels (13) on the same simulated cable (8).

4. A pantograph testing device according to claim 3, characterized in that: The second transverse support rod (12) comprises a main support tube (121), the top end of the main support tube (121) is sleeved on the bottom end of the vertical support rod (9), both ends of the main support tube (121) are hinged to one end of two side rods (122), and the third guide wheel (13) is installed on the other end of the side rod (122).

5. A pantograph testing device according to claim 4, characterized in that: One end of a first spring (123) is fixedly connected inside the main support tube (121), and the other end of the first spring (123) is fixedly connected to the bottom end of the vertical support rod (9). A torsion spring (124) is provided between the side rod (122) and the main support tube (121), and two ends of the torsion spring (124) are respectively fixedly connected to the side rod (122) and the main support tube (121).

6. A pantograph testing device according to claim 1, characterized in that: The adjusting member comprises a screw slide (14) fixedly connected to the top of the support platform (5), a six-axis movable platform (15) and a driving member are fixedly connected to the screw slide (14), connecting members are arranged on both sides of the support platform (5), two ends of the simulated vehicle body (2) are respectively connected to the connecting members, and the six-axis movable platform (15) / the driving member are connected to the simulated vehicle body (2) through the sliding of the screw slide (14).

7. A pantograph testing device according to claim 6, characterized in that: The driving member comprises a driving groove (16), and driving rollers (17) are rotatably connected to the two sides of the driving groove (16), and a simulated moving belt (18) is sleeved between the two driving rollers (17). The moving wheel at the bottom end of the simulated vehicle body (2) is located on the simulated moving belt (18), and the simulated moving belt (18) is provided with a plurality of protrusions for simulating a plurality of road conditions.

8. A pantograph testing device according to claim 7, characterized in that: The connecting member comprises a support plate (19) fixedly connected to the top of the support platform (5), a frame (20) fixedly connected to the support plate (19), one end of a first connecting frame (21) being hingedly connected to the top and bottom of the frame (20), a second connecting frame (22) being arranged between the other ends of the two first connecting frames (21), two ends of the second connecting frame (22) being hingedly connected to the two first connecting frames (21) via a spherical structure, a through hole (23) being provided in the middle of the second connecting frame (22), a connecting rod (24) being slidably connected in the through hole (23), one end of the connecting rod (24) being hingedly connected to the side wall of the simulated vehicle body (2).

9. A pantograph testing device according to claim 8, characterized in that: One end of a column (25) is hingedly connected to the top of the frame (20); a sleeve (26) is sleeved on the column (25); one end of the sleeve (26) is hingedly connected to the first connecting frame (21) located below; a second spring (27) is sleeved on the sleeve (26); the other end of the second spring (27) is fixedly connected to the column (25).

10. A pantograph testing method, applicable to a pantograph testing device according to claim 1, characterized in that: The following steps are involved: Installing a simulated vehicle body (2) on the adjusting member; Controlling the test pantograph (3) to contact the cable simulation component; The test pantograph (3) is tested by generating a relative displacement between the cable simulation component and the test pantograph (3), and simulating different driving conditions on the simulated vehicle body (2) through the adjustment component.

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