Pantograph part testing device

Abstract

The utility model discloses a pantograph part testing device, which relates to the technical field of pantograph testing and comprises a control power line and an auxiliary line, and the control power line is electrically connected with a first air switch and a second air switch. The auxiliary line is electrically connected with a pantograph rising electromagnetic valve, a pantograph rising holding relay, a pantograph falling relay, a pantograph rising relay and a pantograph rising effective relay. The first air switch is electrically connected with a mushroom button, an activation relay and a relay, the relay is electrically connected with the pantograph rising effective relay, and the activation relay is electrically connected with a pantograph falling button normally open contact and a pantograph falling button. According to the utility model, the basic functional test of the pantograph part can be completed without the constraint of an electric passenger train and high voltage 1500V, and the test device can be used for setting and adjusting the early-stage related data of the pantograph part, so that the reworking time generated by unqualified parts is reduced, and the subsequent production operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pantograph testing, in particular to a pantograph component testing device. Background Art

[0002] The pantograph is an important electrical equipment in the subway. In routine maintenance practice, it is found that when the pantograph assembly needs to be replaced due to a fault, it often happens that some of the pantograph spare parts still have basic functional problems, such as failure to meet the airtightness standards, which eventually leads to rework, thereby reducing on-site work efficiency.

[0003] At present, the only way to confirm the function of spare parts at the operation site is to replace the spare pantograph assembly on the train to confirm whether the spare parts are in good condition. Therefore, the existing technical solutions have the following limitations:

[0004] 1. When confirming the basic functions of the pantograph component, the component needs to be installed on the electric passenger train.

[0005] 2. Since the pantograph of the train is installed on the roof, the disassembly and assembly process involves the 1500V contact network power disconnection operation, which has certain constraints.

[0006] 3. The transportation of pantograph components on the roof must be completed using crane equipment, and the operation process is relatively cumbersome.

[0007] Therefore, in order to solve the aforementioned problems, we propose a pantograph component testing device. Utility Model Content

[0008] The utility model aims to solve the defects in the prior art and proposes a pantograph component testing device.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A pantograph component testing device, comprising a control power line and a secondary line, wherein the control power line is electrically connected to an air switch 1 and an air switch 2, and the secondary line is electrically connected to a pantograph raising solenoid valve, a pantograph raising holding relay, a pantograph lowering relay, a pantograph raising relay, and a pantograph raising effective relay;

[0011] The air switch 1 is electrically connected to a mushroom button, an activation relay, and a relay, the relay is electrically connected to the effective relay for raising the bow, the activation relay is electrically connected to the normally open contact of the lowering bow button and the lowering bow button, the normally open contact of the lowering bow button and the mushroom button are both electrically connected to the lowering bow relay, the lowering bow button is electrically connected to the raising bow button, and the raising bow button is electrically connected to the raising bow relay;

[0012] The second air switch is electrically connected to the first normally open contact of the effective bow lifting relay and the second normally open contact of the effective bow lifting relay;

[0013] The normally open contact 1 of the effective bow raising relay is electrically connected to the normally closed contact 1 of the bow lowering relay, the normally closed contact 1 of the bow lowering relay is electrically connected to the normally open contact 1 of the bow raising holding relay, and the normally open contact 1 of the bow raising holding relay is electrically connected to the bow raising solenoid valve;

[0014] The normally open contact 2 of the effective bow raising relay is electrically connected to the normally closed contact 2 of the bow lowering relay, the normally closed contact 2 of the bow lowering relay is electrically connected to the normally open contact of the bow raising relay and the normally open contact 2 of the bow raising holding relay, and the normally open contact of the bow raising relay and the normally open contact 2 of the bow raising holding relay are both electrically connected to the bow raising holding relay.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model can be independent of the constraints of electric passenger trains and high voltage 1500V, complete basic functional testing of the pantograph component, and can use the test device to set and adjust the preliminary relevant data for the pantograph component, which not only reduces the rework time caused by unqualified parts, but also improves the efficiency of subsequent production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] In the figure: 1. Control power line; 2. Auxiliary line; 3. Mushroom button; 4. Normally open contact of bow lowering button; 5. Air switch 1; 6. Activation relay; 7. Bow lowering button; 8. Bow raising button; 9. Relay; 10. Normally open contact 1 of bow raising effective relay; 11. Normally closed contact 1 of bow lowering relay; 12. Normally open contact 1 of bow raising holding relay; 13. Bow raising solenoid valve; 14. Air switch 2; 15. Normally open contact 2 of bow raising effective relay; 16. Normally closed contact 2 of bow lowering relay; 17. Normally open contact of bow raising relay; 18. Normally open contact 2 of bow raising holding relay; 19. Bow raising holding relay; 20. Bow lowering relay; 21. Bow raising relay; 22. Bow raising effective relay. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0021] Reference Figure 1 A pantograph component testing device comprises a control power line 1 and a secondary line 2, the control power line 1 is electrically connected to an air switch 1 5 and an air switch 2 14, the secondary line 2 is electrically connected to a pantograph raising solenoid valve 13, a pantograph raising holding relay 19, a pantograph lowering relay 20, a pantograph raising relay 21, and a pantograph raising effective relay 22; the air switch 1 5 is electrically connected to a mushroom button 3, an activation relay 6, and a relay 9, the relay 9 is electrically connected to the pantograph raising effective relay 22, the activation relay 6 is electrically connected to a pantograph lowering button normally open contact 4 and a pantograph lowering button 7, the pantograph lowering button normally open contact 4 and the mushroom button 3 are both electrically connected to the pantograph lowering relay 20, the pantograph lowering button 7 is electrically connected to a pantograph raising button 8, and the pantograph raising button 8 is electrically connected to the pantograph raising relay 21; the air switch The two 14 are electrically connected with the normally open contact 10 of the effective bow raising relay and the normally open contact 2 15 of the effective bow raising relay; the normally open contact 10 of the effective bow raising relay is electrically connected with the normally closed contact 11 of the bow lowering relay, the normally closed contact 11 of the bow lowering relay is electrically connected with the normally open contact 12 of the bow raising holding relay, and the normally open contact 12 of the bow raising holding relay is electrically connected with the bow raising solenoid valve 13; the normally open contact 2 15 of the effective bow raising relay is electrically connected with the normally closed contact 2 16 of the bow lowering relay, the normally closed contact 2 16 of the bow lowering relay is electrically connected with the normally open contact 17 of the bow raising relay and the normally open contact 2 18 of the bow raising holding relay, and the normally open contact 17 of the bow raising relay and the normally open contact 2 18 of the bow raising holding relay are both electrically connected with the bow raising holding relay 19.

[0022] Working principle: This test device mainly configures a set of control systems to effectively combine the 110V DC power supply system and the 380V AC air compressor air supply system, and then effectively connects the component pantograph. The component pantograph is raised and lowered through the control system's pantograph raising and lowering commands to complete its basic function test.

[0023] 1. The process of raising and lowering the pantograph

[0024] ①Simulation train activation and driver's cab activation:

[0025] Simulate the activation train: Input 110V DC power to energize the control power line 1.

[0026] Simulate activation of the driver's cab: connect the control power line 1 through the air switch 5 to energize the activation relay 6 in the driver's cab.

[0027] ② Bow raising operation:

[0028] Press the pantograph raising button 8, control the power line 1 through the air switch 1 5 to the activation relay 6, and then energize the pantograph raising relay 21 through the normally closed contact of the pantograph lowering button 8. At the same time, the control power line 1 passes through the air switch 2 14, the normally open contact 2 15 of the pantograph raising effective relay and the normally closed contact 2 16 of the pantograph lowering relay, and then the normally open contact 17 of the pantograph raising relay to energize the pantograph holding relay 19, and forms a self-locking circuit through the normally open contact 2 18 of the pantograph holding relay, and finally energizes and holds the pantograph raising solenoid valve 13 through the self-holding of the pantograph holding relay 19. After the pantograph raising solenoid valve 13 is energized and held, the compressed air enters the pantograph raising pump through the pantograph raising solenoid valve 13 and completes the pantograph raising operation.

[0029] ③ Bow lowering operation:

[0030] Press the down / up button 7, the control power line 1 passes through the air switch 1 5 to the activation relay 6, and then passes through the normally open contact 4 of the pantograph lowering button to energize the pantograph lowering relay 20. At the same time, the control power line 1 passes through the air switch 2 14, the normally open contact 2 15 of the pantograph raising effective relay, and then the normally closed contact 2 16 of the pantograph lowering relay is energized and disconnected to release the self-locking circuit of the pantograph raising holding relay 19 and the pantograph raising electromagnetic valve 13. After the pantograph raising electromagnetic valve 13 loses power, the compressed air is discharged from the pantograph air pump through the pantograph raising electromagnetic valve 13 and the pantograph lowering operation is completed.

[0031] 2. Confirmation of the basic functions that the pantograph can perform:

[0032] ① The airtightness check of the pneumatic part of the pantograph can be completed: after the pantograph is raised, the airtightness of the pneumatic part can be directly checked and confirmed.

[0033] ② The pantograph static contact force parameters can be confirmed: after the pantograph raising operation, the pantograph static contact force can be measured and adjusted.

[0034] ③ The pantograph raising and lowering time parameters can be confirmed: through the pantograph raising and lowering operations, the pantograph raising and lowering time parameters can be measured and adjusted.

[0035] The mushroom button 3 is an emergency stop button. By connecting a mushroom button 3 in series, the mushroom button can be pressed in time during an unexpected bow raising process to prevent accidents.

Claims

1. A pantograph component testing device, characterized in that: It comprises a control power line (1) and a secondary line (2), wherein the control power line (1) is electrically connected to an air switch 1 (5) and an air switch 2 (14), and the secondary line (2) is electrically connected to a bow raising solenoid valve (13), a bow raising holding relay (19), a bow lowering relay (20), a bow raising relay (21), and a bow raising effective relay (22); The air switch 1 (5) is electrically connected to a mushroom button (3), an activation relay (6), and a relay (9); the relay (9) is electrically connected to the effective bow raising relay (22); the activation relay (6) is electrically connected to the bow lowering button normally open contact (4) and the bow lowering button (7); the bow lowering button normally open contact (4) and the mushroom button (3) are both electrically connected to the bow lowering relay (20); the bow lowering button (7) is electrically connected to the bow raising button (8); and the bow raising button (8) is electrically connected to the bow raising relay (21); The air switch 2 (14) is electrically connected to the normally open contact 1 (10) of the effective bow raising relay and the normally open contact 2 (15) of the effective bow raising relay; The normally open contact 1 (10) of the effective bow raising relay is electrically connected to the normally closed contact 1 (11) of the bow lowering relay, the normally closed contact 1 (11) of the bow lowering relay is electrically connected to the normally open contact 1 (12) of the bow raising holding relay, and the normally open contact 1 (12) of the bow raising holding relay is electrically connected to the bow raising solenoid valve (13); The normally open contact 2 (15) of the effective bow raising relay is electrically connected to the normally closed contact 2 (16) of the bow lowering relay, the normally closed contact 2 (16) of the bow lowering relay is electrically connected to the normally open contact 17 of the bow raising relay and the normally open contact 2 (18) of the bow raising holding relay, the normally open contact 17 of the bow raising relay and the normally open contact 2 (18) of the bow raising holding relay are both electrically connected to the bow raising holding relay (19).

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