Detection device for vehicle-mounted pantograph

Abstract

The utility model discloses a detection device for a vehicle-mounted pantograph, which comprises a base, the upper part of the base is connected with a testboard through a reciprocating motion mechanism, the upper part of the testboard is provided with a plurality of fasteners used for compressing and fixing a pantograph to be detected, a cable is arranged above the pantograph to be detected, the cable abuts against a carbon contact strip of the pantograph to be detected, and the carbon contact strip is connected with the testboard. The reciprocating motion mechanism drives the to-be-tested pantograph on the test bench to reciprocate, and the cable is driven by the driving mechanism to realize reciprocating high-speed movement. According to the utility model, the driving mechanism drives the cable to perform high-speed reciprocating linear movement, the to-be-tested pantograph can be firmly fixed on the test bench through the fastener, the positioning block and the jacking piece, and the high-speed moving cable is in contact with a carbon slide plate of the to-be-tested pantograph. In addition, the reciprocating motion mechanism drives the carbon slide plate of the pantograph to be tested to reciprocate relative to the cable, the real working state of the pantograph is simulated, the problem of wear failure of the pantograph is studied, and the device is suitable for performance detection of pantograph products.

Description

Technical Field

[0001] The utility model relates to the technical field of pantographs, and particularly relates to a detection device for on-vehicle pantographs. Background Technique

[0002] With the continuous improvement of the electrification degree of the railway system and the continuous increase of vehicle speed, in order to ensure the safe and stable operation of vehicles, the detection of the contact state between the pantograph and the catenary is particularly important. The wear of the carbon slide is one of the external characteristics of the pantograph. If problems occur, it is easy to cause significant economic losses. Therefore, the detection of the wear of the carbon slide of the pantograph has very important significance.

[0003] At present, the domestic mainly adopts the method of manual detection for the wear detection of the carbon slide of the pantograph. It is necessary for workers to climb to the roof of the vehicle to detect the pantograph and the catenary. It has strong flexibility, but low efficiency. And when detecting, the train must be powered off and grounded for parking. However, there is no relevant detection device for testing its performance at the stage of pantograph product factory. If the wear detection is carried out on the product before leaving the factory, the quality of the pantograph product can be further improved. Therefore, a detection device for on-vehicle pantographs is proposed. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide a detection device for on-vehicle pantographs, simulate the real working state of the pantograph, study the wear failure problem of the pantograph, and be applicable to the performance detection of pantograph products, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A detection device for on-vehicle pantographs, including a base, the upper part of the base is connected to a test bench through a reciprocating motion mechanism, multiple fasteners for pressing and fixing the pantograph to be tested are arranged on the upper part of the test bench, a cable is arranged above the pantograph to be tested, the cable abuts against the carbon slide of the pantograph to be tested, and the reciprocating motion mechanism drives the pantograph to be tested on the test bench to reciprocate along a direction perpendicular to the moving direction of the cable; the cable is driven by a driving mechanism to achieve reciprocating high-speed movement, and the driving mechanism includes two co-rotating drums.

[0006] Preferably, a positioning block for positioning the pantograph to be tested is arranged on one side of the upper part of the test bench, and two tightening members for relatively tightening the pantograph to be tested are also arranged on the upper part of the test bench. The tightening member includes a fixed seat, a tightening screw rod is threadedly connected to the fixed seat, and the end of the tightening screw rod abuts against the pantograph to be tested.

[0007] Preferably, there are four fasteners, and the fastener includes a screw rod, a pressing plate is movably sleeved on the screw rod, and a fastening nut is threadedly connected to the screw rod.

[0008] Preferably, the reciprocating motion mechanism includes a housing, a lead screw rotatably connected to the housing, a servo motor for driving the rotation of the lead screw disposed on the outer wall of the housing, and the lead screw is connected to the test bench through a lead screw nut seat.

[0009] Preferably, the drum is supported by a bracket, the drum is rotatably connected to the bracket, and the drum is driven to rotate by a variable frequency motor.

[0010] Preferably, soft ropes are provided at both ends of the cable, and the soft ropes at both ends are wound around the two drums correspondingly.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The driving mechanism drives the cable to move back and forth linearly at a high speed. The fastener, the positioning block and the pressing member can firmly fix the pantograph to be tested on the test bench. The cable moving at a high speed contacts the carbon sliding plate of the pantograph to be tested. In addition, the reciprocating motion mechanism drives the carbon sliding plate of the pantograph to be tested to move back and forth relative to the cable, simulating the real working state of the pantograph, studying the wear failure problem of the pantograph, and being applicable to the performance detection of pantograph products. Description of the Drawings

[0012] Figure 1 is a schematic structural view of the present utility model;

[0013] Figure 2 is a front view of the present utility model;

[0014] Figure 3 is a partial structural schematic view of the present utility model.

[0015] In the figure: 1 base, 2 reciprocating motion mechanism, 2.1 servo motor, 2.2 lead screw, 2.3 lead screw nut seat, 2.4 housing, 3 test bench, 4 pressing member, 4.1 fixed seat, 4.2 pressing lead screw, 5 fastener, 5.1 pressing plate, 5.2 screw rod, 5.3 fastening nut, 6 positioning block, 7 cable, 8 drum. Detailed Embodiments

[0016] The present utility model can be explained in detail through the following embodiments. The purpose of disclosing the present utility model is to protect all technical improvements within the scope of the present utility model. In the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, it is only corresponding to the drawings of the present application for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation.

[0017] Please refer to Figures 1-3, the present utility model provides a technical solution: a detection device for an on-vehicle pantograph, including a base 1. The upper part of the base 1 is connected to a test bench 3 through a reciprocating motion mechanism 2. Multiple fasteners 5 for tightly fixing the pantograph to be tested are provided on the upper part of the test bench 3. Above the pantograph to be tested, there is a cable 7, and the cable 7 abuts against the carbon slide plate of the pantograph to be tested. The reciprocating motion mechanism 2 drives the pantograph to be tested on the test bench 3 to reciprocate in a direction perpendicular to the moving direction of the cable 7; the cable 7 is driven by a driving mechanism to achieve reciprocating high-speed movement, and the driving mechanism includes two co-rotating drums 8;

[0018] It can be understood that the driving mechanism drives the cable 7 to reciprocate at high speed. The pantograph to be tested is fixed on the test bench 6 through the fastener 5. The pantograph to be tested raises the bow and contacts the upper part of the cable 7. The cable 7 frictionally moves on the carbon slide plate of the pantograph to be tested. At the same time, the reciprocating motion mechanism 2 drives the pantograph to be tested to reciprocate in a direction perpendicular to the moving direction of the cable 7, which can simulate the real working state of the pantograph, study the wear failure problem of the pantograph, and is applicable to the performance detection of pantograph products;

[0019] Further, a positioning block 6 for positioning the pantograph to be tested is provided on one side of the upper part of the test bench 3. Two tightening members 4 that relatively tighten the pantograph to be tested are also provided on the upper part of the test bench 3. The tightening member 4 includes a fixed seat 4.1. A tightening screw rod 4.2 is threadedly connected to the fixed seat 4.1, and the end of the tightening screw rod 4.2 abuts against the pantograph to be tested; on the basis of setting the fastener 5, the positioning block 6 and the tightening member 4 are added. The fastener 5 plays a role in tightly pressing the pantograph to be tested to achieve the vertical position limitation, while the positioning block 6 positions the position of the pantograph to be tested, and the tightening member 4 tightly presses and fixes it to achieve the horizontal position limitation, ensuring that the pantograph is firmly fixed during the test;

[0020] Further, there are four fasteners 5. The fastener 5 includes a screw rod 5.2. A pressing plate 5.1 is movably sleeved on the screw rod 5.2. A fastening nut 5.3 is threadedly connected to the screw rod 5.2. By screwing the fastening nut 5.3, the pantograph to be tested is tightly fixed. The pressing plate 5.1 can rotate, and thus can fix pantographs to be tested with different specifications, which is flexible and convenient to use;

[0021] Further, the reciprocating motion mechanism 2 includes a housing 2.4. A lead screw 2.2 is rotatably connected to the housing 2.4. A servo motor 2.1 for driving the lead screw 2.4 to rotate is provided on the outer wall of the housing 2.4. The lead screw 2.2 is connected to the test bench 3 through a lead screw nut seat 2.3. By driving the lead screw 2.2 to rotate through the servo motor 2.1, the lead screw 2.2 drives the test bench 3 to move through the lead screw nut seat 2.3, and the test bench 3 is made to reciprocate by changing the rotation direction of the servo motor 2.1;

[0022] In addition, the reel 8 is supported by a bracket. The reel 8 is rotatably connected to the bracket. The reel 8 is driven to rotate by a variable-frequency motor, and the variable-frequency motor can adjust the speed, so that the cable can move at a high speed to simulate a high-speed locomotive. Soft ropes are provided at both ends of the cable 7, and the soft ropes at both ends are correspondingly wound around the two reels 8. That is, when the reel 8 rotates, the cable 7 is pulled to move at a high speed through the soft ropes, avoiding the poor winding driving effect caused by the rigidity of the cable 7 when directly driven by the reel 8. During implementation, the two reels 8 rotate synchronously, and the cable 7 is pulled to move through the soft ropes on the two reels 8. The two reels 8 rotate synchronously forward and reverse to achieve the high-speed reciprocating movement of the cable. According to the actual needs of the test, the cable 7 should ensure a certain length, and the soft ropes should also ensure a certain length.

[0023] The parts not detailed in the present utility model are prior art. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, aiming to include all changes falling within the meaning and scope of the equivalent elements in the content of the present utility model.

Claims

1. A detection device for a vehicle-mounted pantograph, comprising a base (1), characterized in that: The upper part of the base (1) is connected to the test bench (3) via a reciprocating mechanism (2); a plurality of fasteners (5) for pressing and fixing the pantograph to be tested are provided on the upper part of the test bench (3); a cable (7) is provided above the pantograph to be tested; the cable (7) contacts the carbon slide plate of the pantograph to be tested; the reciprocating mechanism (2) drives the pantograph to be tested on the test bench (3) to reciprocate in a direction perpendicular to the movement direction of the cable (7); the cable (7) is driven by a driving mechanism to achieve high-speed reciprocating movement; the driving mechanism comprises two reels (8) rotating in the same direction.

2. A vehicle-mounted pantograph detection device according to claim 1, characterized in that: A positioning block (6) for positioning the pantograph to be tested is provided on one side of the upper portion of the test bench (3). Two tightening members (4) for tightening the pantograph to be tested are also provided on the upper portion of the test bench (3). The tightening members (4) include a fixing seat (4.1). The fixing seat (4.1) is threadedly connected to a tightening screw rod (4.2). The end of the tightening screw rod (4.2) contacts the pantograph to be tested.

3. The on-vehicle pantograph detection device according to claim 1, characterized in that: The fasteners (5) are provided with four pieces, and the fasteners (5) include a screw rod (5.2), the screw rod (5.2) is movably sleeved with a pressure plate (5.1), and the screw rod (5.2) is threadedly connected with a fastening nut (5.3).

4. The on-vehicle pantograph detection device according to claim 1, characterized in that: The reciprocating mechanism (2) comprises a housing (2.4), the housing (2.4) being rotatably connected to a screw rod (2.2), an outer wall of the housing (2.4) being provided with a servo motor (2.1) for driving the screw rod (2.2) to rotate, and the screw rod (2.2) being connected to a test bench (3) via a screw rod nut seat (2.3).

5. The on-vehicle pantograph detection device according to claim 1, characterized in that: The reel (8) is supported by a bracket, the reel (8) is rotatably connected to the bracket, and the reel (8) is driven to rotate by a variable frequency motor.

6. The on-vehicle pantograph detection device according to claim 1, characterized in that: Both ends of the cable (7) are provided with soft ropes, and the soft ropes at the two ends are wound around two reels (8) respectively.

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