Electrical coupler fatigue test bench and system

Abstract

The utility model discloses an electric car coupler fatigue test bench and system, including a test bench, a car coupler installation assembly and a cylinder assembly arranged on the test bench; the car coupler installation assembly includes a guide rail assembly and two pairs of flip cover arms respectively arranged on both sides of the guide rail assembly for controlling the state of the car coupler cover; the cylinder assembly has two groups and is respectively placed at both ends of the guide rail assembly; the test bench is provided with two displacement sensor assemblies for detecting the displacement of the car coupler; the guide rail assembly includes a first guide rail group, a second guide rail group and a guide shaft seat detachably fixed on the test bench for fixing the first guide rail group and the second guide rail group, the first guide rail group and the second guide rail group both include two guide rails arranged in parallel with each other, and the two guide rails of the first guide rail group and the second guide rail group are respectively coaxially arranged. It can reduce the offset generated when the two car couplers are docked and can realize the push stroke detection, avoiding the electric car coupler from hitting.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue testing devices, in particular to an electric car coupler fatigue testing platform and a system. Background Art

[0002] The electric coupler fatigue test bench is used to test the docking and flipping fatigue test data of the electric coupler. The existing electric coupler fatigue test bench, such as the structure of "a standard electric coupler life test bench for EMUs" with application number 201910993915.X, adopts a large common chassis, a cylinder is set on the chassis, two straight and slidable mounting frames are used to install two electric couplers respectively, and the cylinder is used to realize the drive control.

[0003] However, the existing technology has the following problems:

[0004] 1. The neutrality is poor during docking, and the two electrical couplers are prone to offset;

[0005] 2. The pushing stroke is uncontrollable, which may easily cause the two electrical couplers to collide. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the existing electric coupler fatigue test bench during docking, such as poor centering and uncontrollable pushing stroke, and to provide an electric coupler fatigue test bench and system, which can reduce the offset generated when two couplers are docked and can realize pushing stroke detection, thereby avoiding collision of the electric couplers.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] The first aspect of the utility model provides an electric coupler fatigue test bench, comprising a test bench, a coupler mounting assembly and a cylinder assembly arranged on the test bench;

[0009] The coupler installation assembly includes a guide rail assembly and two pairs of flip cover arms respectively arranged on both sides of the guide rail assembly for controlling the state of the coupler cover;

[0010] There are two groups of cylinder assemblies, which are respectively placed at two ends of the guide rail assembly;

[0011] The test bench is provided with two displacement sensor assemblies for detecting the displacement of the coupler;

[0012] The guide rail assembly includes a first guide rail group, a second guide rail group and a guide shaft seat that can be detachably fixed on the test bench for fixing the first guide rail group and the second guide rail group. The first guide rail group and the second guide rail group each include two guide rails arranged parallel to each other, and the two guide rails of the first guide rail group and the second guide rail group are respectively coaxially arranged.

[0013] The second aspect of the utility model provides an electric vehicle coupler fatigue test system, comprising:

[0014] Two couplers;

[0015] An electric coupler fatigue test bench as described in the first aspect, wherein two couplers are back to back and are respectively installed on the first guide rail group and the second guide rail group, two cylinder assemblies are respectively connected to the two couplers, and the flap arms are placed in the step structures on both sides of the couplers.

[0016] The utility model has the following advantages:

[0017] 1. This solution sets cylinder assemblies at both ends of the guide rail assembly, and uses one guide rail assembly to achieve the installation and docking of two electric couplers. The two guide rails of the two guide rail groups are coaxially arranged to ensure the centering of the two electric couplers when docking, and reduce the offset caused by the docking of the two couplers.

[0018] 2. This solution sets a displacement sensor assembly on the test bench to detect the displacement of the coupler, avoiding collision caused by excessive movement of the coupler during testing and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a side view of the utility model electric car coupler fatigue test bench;

[0021] Figure 2 It is a top view of the electric car coupler fatigue test bench of the utility model;

[0022] Figure 3 It is a three-dimensional diagram of the electric car coupler fatigue test system of the utility model;

[0023] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the guide shaft seat. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The first aspect of the utility model discloses an electric vehicle coupler fatigue test bench, such as Figure 1 , 2 As shown, it includes a test bench 1, a coupler mounting assembly and a cylinder assembly arranged on the test bench 1.

[0032] The coupler installation assembly includes a guide rail assembly 21 and two pairs of flip cover arms 22 respectively arranged on both sides of the guide rail assembly 21 for controlling the state of the coupler cover.

[0033] There are two groups of cylinder assemblies which are respectively placed at the two ends of the guide rail assembly 21 .

[0034] Two displacement sensor assemblies for detecting the displacement of the coupler are arranged on the test bench 1 .

[0035] A guide rail assembly 21 is used to install two couplers, and includes a first guide rail group, a second guide rail group, and a guide shaft seat that can be detachably fixed on the test bench 1 and is used to fix the first guide rail group and the second guide rail group. The first guide rail group and the second guide rail group each include two guide rails arranged parallel to each other. The two guide rails of the first guide rail group and the second guide rail group are respectively coaxially arranged. Figure 2 shown.

[0036] To facilitate installation, Figure 5 As shown, the guide shaft seat includes a shaft seat body 211 and a mounting ear 212 arranged on the shaft seat body; the shaft seat body is provided with a mounting hole 2111 for passing the guide rail and a through hole 2112 for fixing the guide rail and connected to the mounting hole; the mounting ear 212 is provided with a fixing hole 2121.

[0037] In order to improve the stability of the coupler installation, two guide shaft seats are set on each guide rail to support both ends of the guide rail.

[0038] The guide shaft seat can be detachably fixed by installing bolts in the fixing holes 2121, which is convenient for operation.

[0039] The cylinder assembly includes a cylinder 31, a first transition joint 331, a pressure sensor assembly 32, a second transition joint 332 and a cylinder connector 34 for connecting a coupler, which are connected in sequence.

[0040] The cylinder connector 34 is connected to the coupler for easy operation. Figure 1 As shown, the cylinder connector 34 is hook-shaped. The hook-shaped cylinder connector 34 can be directly hooked onto the vehicle coupler.

[0041] The displacement sensor assembly includes a mounting plate 41 and a displacement sensor 42 mounted on the mounting plate 41. The displacement sensor 42 is disposed on one side of the cylinder. In order to enhance structural stability, one end of the mounting plate 41 is fixed on the first transition joint 331.

[0042] The flip arm 22 is used to control the state of the coupler cover, that is, to realize the opening or closing of the coupler cover. It is placed on both sides of the coupler. Specifically, the flip arm 22 includes an "L"-shaped flip arm body 221, a cylindrical pin 222 fixed on the flip arm body, and a fixing part fixed on the flip arm body.

[0043] The cylindrical pin is arranged on a side close to the hook. The fixing part realizes the fixing of the flip cover arm 22, and there are many ways to realize it. For example, the fixing part is in the form of a sheet and is fixed on the test bench 1 through screw holes and bolts.

[0044] In order to facilitate hoisting, the test bench 1 is fixed with lifting lugs 6. For hoisting stability, the lifting lugs 6 are arranged at the four corners of the test bench.

[0045] In order to reduce the volume, the test bench 1 can adopt a frame structure, including a frame welded from square tubes and a test plate welded on the frame. Then the whole is processed to ensure the dimensional tolerance of each mounting surface and mounting interface; 4 lifting screws are installed on the mounting panel for lifting. The test bench 1 is made of light material, the product is small in size and light in weight, can be flexibly moved, and does not occupy the site for a long time.

[0046] In order to facilitate height and level adjustment, foot cups can be installed at the bottom of the frame structure.

[0047] The displacement sensor and pressure sensor assembly 32 detect the pushing stroke and pulling force of the coupler respectively, and improve the stability while realizing fatigue test. With the above structure, the displacement sensor, pressure sensor assembly 32 and cylinder are electrically connected to the control unit. The control unit can be implemented with existing mature control chips, such as MCU, PLC and other intelligent control chips. The cylinder can be SE125x100SLBPT cylinder, and the displacement sensor can be HLC-150 displacement sensor. The above devices are all existing devices, and their circuit connection relationship with the control unit is an existing mature circuit, which will not be repeated here.

[0048] Based on the above-mentioned electric coupler fatigue test bench, the second aspect of the utility model discloses an electric coupler fatigue test system, such as Figure 3 , 4 As shown, it includes two couplers and an electrical coupler fatigue test bench as described in any one of the structures in the first aspect.

[0049] During the test, the two couplers are back to back and are respectively installed on the first guide rail group and the second guide rail group, the two cylinder assemblies are respectively connected to the two couplers, and the flap arms 22 are placed in the step structures on both sides of the couplers.

[0050] When the couplers are connected, the cylindrical pin 222 on the flip cover arm contacts a step on the coupler cover to open the coupler cover; when the couplers are disconnected, the cylindrical pin 222 hooks the step of the coupler cover to close the coupler cover.

[0051] The above system can be used to push the two locomotive electric couplers to slide, so that the two electric couplers can be turned over and separated. A fatigue test of long-term docking and separation can be carried out; after the fatigue test is completed, the operation is reversed to remove the two electric couplers; the electric couplers are replaced, and the above operation is repeated to complete the fatigue test of the electric couplers.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric coupler fatigue test bench, comprising a test bench (1), a coupler mounting assembly and a cylinder assembly arranged on the test bench (1); characterized in that: The coupler installation assembly comprises a guide rail assembly (21) and two pairs of flip cover arms (22) respectively arranged on both sides of the guide rail assembly (21) for controlling the state of the coupler cover; There are two groups of cylinder assemblies, which are respectively placed at two ends of the guide rail assembly (21); The test bench (1) is provided with two displacement sensor assemblies for detecting the displacement of the coupler; The guide rail assembly (21) comprises a first guide rail group, a second guide rail group and a guide shaft seat that is detachably fixed on the test bench (1) and is used to fix the first guide rail group and the second guide rail group. The first guide rail group and the second guide rail group each comprise two guide rails that are arranged parallel to each other. The two guide rails of the first guide rail group and the second guide rail group are respectively coaxially arranged.

2. The electric coupler fatigue test bench according to claim 1 is characterized in that: The guide shaft seat comprises a shaft seat body (211) and a mounting ear (212) arranged on the shaft seat body; The shaft seat body is provided with a mounting hole (2111) for passing the guide rail and a through hole (2112) for fixing the guide rail and communicating with the mounting hole; The mounting ear (212) is provided with a fixing hole (2121).

3. The electric coupler fatigue test bench according to claim 2 is characterized in that: Two guide shaft seats are arranged on each guide rail.

4. The electric coupler fatigue test bench according to claim 1 is characterized in that: The cylinder assembly comprises a cylinder (31), a first transition joint (331), a pressure sensor assembly (32), a second transition joint (332), and a cylinder connector (34) for connecting a coupler, which are connected in sequence.

5. The electric coupler fatigue test bench according to claim 4 is characterized in that: The displacement sensor assembly comprises a mounting plate (41) and a displacement sensor (42) mounted on the mounting plate (41).

6. The electric coupler fatigue test bench according to claim 5 is characterized by: One end of the mounting plate (41) is fixed on the first transition joint (331).

7. The electric coupler fatigue test bench according to claim 4 is characterized by: The cylinder connecting head (34) is hook-shaped.

8. The electric coupler fatigue test bench according to claim 1 is characterized by: The flip cover arm (22) comprises an L-shaped flip cover arm body, a cylindrical pin fixed to the flip cover arm body, and a fixing portion fixed to the flip cover arm body.

9. The electric coupler fatigue test bench according to claim 1 is characterized by: A lifting lug (6) is fixed on the test bench (1).

10. An electrical coupler fatigue test system, characterized in that: include: Two couplers; An electric coupler fatigue test bench as claimed in any one of claims 1 to 9, wherein two couplers are back to back and are respectively mounted on the first guide rail group and the second guide rail group, two cylinder assemblies are respectively connected to the two couplers, and the flap arm (22) is placed in the step structure on both sides of the coupler.

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