A hydraulic switch machine oil circuit action detection system and detection vehicle

Abstract

The utility model provides a kind of hydraulic switch machine oil circuit action detection system and detection car, including power module, alternating current detection module, direct current detection module and oil circuit detection module;Alternating current detection module tests alternating current switch machine by order switch;The input end of direct current detection module is connected with power module, and output end is connected with the direct current switch machine to be measured;Oil circuit detection module includes oil pump group, and oil pump group is connected with oil circuit breaker and starting oil cylinder respectively;When detecting direct current or alternating current switch machine, starting oil cylinder is connected with the oil circuit of switch machine to be detected.The detection system and detection car described in the utility model can satisfy alternating current, direct current hydraulic switch machine and three kinds of test requirements of oil pump group, can detect the oil circuit action state and current in action process of alternating current hydraulic switch machine, direct current hydraulic switch machine, and also can detect the performance of single oil pump group.

Description

Technical Field

[0001] This utility model belongs to the field of switch machine testing technology, and in particular relates to a hydraulic switch machine oil circuit action detection system and testing vehicle. Background Technology

[0002] Hydraulic switch machines are key actuators in railway signaling systems, and the performance of their hydraulic circuits and pump sets directly determines the reliability of turnout switching. Currently, the industry typically uses separate AC and DC test benches to test the hydraulic circuit operation of AC and DC hydraulic switch machines, respectively. Furthermore, most existing test benches can only perform whole-machine testing and lack the capability to verify the performance of individual pump sets.

[0003] For a large number of new switch machines and switch machines that need to be centrally inspected after being repaired and inspected and left for a period of time, the two sets of equipment are large in size and occupy a lot of space. They also need to be equipped with power supply, oil supply and control circuits respectively. Usually, they need to be used in conjunction with transport trolleys and special equipment cranes. However, frequent use of cranes poses safety risks such as falling objects from heights and collisions with personnel. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model aims to propose a hydraulic switch machine oil circuit action detection system and detection vehicle, which solves the problems of poor integration and low efficiency of hydraulic switch machine oil circuit detection devices, as well as the personal safety risks posed by the frequent use of special equipment during operation.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A hydraulic switch machine oil circuit operation detection system includes a power supply module, an AC detection module, a DC detection module, and an oil circuit detection module; The AC testing module includes a forward / reverse switch, the input terminal of which is connected to the power supply module, and the output terminal of which is connected to an AC circuit breaker and an oil circuit breaker, respectively. The AC circuit breaker is connected to the AC switch machine to be tested. The input terminal of the DC detection module is connected to the power supply module, and the output terminal is connected to the DC switch machine under test. The oil circuit detection module includes an oil pump group, which is connected to an oil circuit breaker and a starting cylinder respectively; when detecting a DC or AC switch machine, the starting cylinder is connected to the oil circuit of the switch machine to be tested.

[0006] Furthermore, the oil pump assembly includes a motor, which is connected to the oil pump via a coupling; the oil ports on both sides of the oil pump are connected to the oil sump via filters and overflow valves, respectively, and a one-way valve is connected in parallel between each oil port and the oil sump; the oil ports on both sides of the oil pump are connected to both sides of the starting cylinder, respectively, for driving the piston movement of the starting cylinder.

[0007] Furthermore, the starting cylinder is equipped with a pressure testing connector.

[0008] Furthermore, the power module includes a main circuit breaker, which is connected to an external 380V AC power supply.

[0009] Furthermore, the output terminal of the main circuit breaker is equipped with an AC voltmeter and an AC ammeter.

[0010] Furthermore, the DC detection module includes a transformer, and the transformer, voltage regulator, and rectifier are connected in sequence to form a voltage regulating circuit. A DC voltmeter is installed between the positive and negative terminals of the rectifier. The voltage regulator output terminal and the stop button are connected in sequence. The stop button is connected to the positioning button, the reverse button, the positioning contactor, and the reverse contactor respectively. The positioning button is connected to the normally open contact of the positioning contactor, the reverse button is connected to the normally closed contact of the positioning contactor, and the normally closed contact of the positioning contactor is connected to the normally open contact of the reverse contactor, thus forming a control circuit. The rectifier positive terminal, positioning contactor, positioning circuit breaker, positioning action line and the positioning side of the DC switch motor under test are connected in sequence. The common terminal of the DC switch motor under test is connected to the common line. The common line, positioning ammeter, positioning circuit breaker, positioning contactor and rectifier negative terminal are connected in sequence to form a positioning action circuit. The positive terminal of the rectifier, the reverse contactor, the reverse circuit breaker, and the common line are connected in sequence. The reverse side of the switch machine motor, the reverse action line, the reverse ammeter, the reverse circuit breaker, the reverse contactor, and the negative terminal of the rectifier are connected in sequence to form a reverse action circuit.

[0011] Furthermore, a positioning indicator light is connected in series between the normally open contact of the positioning contactor and the normally closed contact of the reversing contactor, and a reversing indicator light is connected in series between the normally open contact of the reversing contactor and the normally closed contact of the positioning contactor.

[0012] A hydraulic switch machine oil circuit operation detection vehicle includes a vehicle body, with casters at the bottom of the vehicle body, and a power supply module, an AC detection module, a DC detection module and an oil circuit detection module integrated on the vehicle body.

[0013] Furthermore, the vehicle body is equipped with an operating panel, which includes a main circuit breaker, a forward / reverse switch, an AC circuit breaker, an oil circuit breaker, a DC circuit breaker, a voltage regulator, a DC voltmeter, a stop button, a positioning button, a reverse button, a positioning circuit breaker, a positioning ammeter, a reverse circuit breaker, a reverse ammeter, a positioning indicator light, a reverse indicator light, a main power connector, an AC switch machine connector, and a DC switch machine connector.

[0014] Furthermore, the vehicle body is equipped with a grounding terminal.

[0015] Compared with existing technologies, the hydraulic switch machine oil circuit action detection system and detection vehicle described in this utility model have the following advantages: The testing system described in this utility model can meet the testing requirements of three types of hydraulic switch machines: AC and DC hydraulic switch machines, and oil pump sets. It can detect the hydraulic circuit operation status and the current and oil pressure (including hydraulic circuit operation pressure and overflow pressure) during the operation of AC and DC hydraulic switch machines. It can also test the performance of individual oil pump sets. The AC switch machine is tested via a forward / reverse switch. The AC380V input power is converted to AC220V power by a transformer. The DC power obtained by full-wave rectification of the AC220V power is then regulated by a voltage regulator to obtain the rated DC power required for the DC hydraulic switch machine, thus completing the test of the DC hydraulic switch machine.

[0016] The inspection vehicle described in this utility model uses a built-in oil pump unit and an external starting cylinder to inspect various SH5 or SH6 type switch machines. At the same time, it can complete the inspection of individual oil pump units by connecting the starting cylinder and a single pump unit, realizing the comprehensive inspection function of AC and DC hydraulic switch machines and pump units. The flexibility of the inspection vehicle realizes the transformation from a "test bench" to an "inspection vehicle", which improves the efficiency of hydraulic switch machine inspection and reduces the risk of personal injury during operation. Attached Figure Description

[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 A schematic diagram of the control circuit provided for an embodiment of this utility model; Figure 2 A schematic diagram of the oil circuit provided for an embodiment of this utility model; Figure 3 This is a schematic diagram of the testing vehicle structure provided in an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Main circuit breaker; 2. Reversing switch; 3. AC circuit breaker; 4. Oil circuit breaker; 5. Transformer; 6. DC circuit breaker; 7. Voltage regulator; 8. Rectifier; 9. Positioning contactor; 10. Reverse position contactor; 11. Stop button; 12. Positioning button; 13. Reverse position button; 14. Positioning circuit breaker; 15. Positioning ammeter; 16. Reverse position circuit breaker; 17. Reverse position ammeter; 18. Positioning indicator light; 19. Reverse position indicator light; 20. AC voltmeter; 21. AC ammeter; 22. Starting cylinder; 23. Motor; 24. Coupling; 25. Oil pump; 26. Filter; 27. Overflow valve; 28. Oil sump; 29. ​​Check valve; 30. Car body; 31. Control panel; 32. Main power connector; 33. AC switch machine connector; 34. DC switch machine connector. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 3 As shown, a hydraulic switch machine oil circuit action detection system includes a power supply module, an AC detection module, a DC detection module, and an oil circuit detection module; The power module includes a main circuit breaker 1, which is connected to an external 380V AC power supply. The AC testing module includes a forward / reverse switch 2, an AC circuit breaker 3, and an oil circuit breaker 4. The input terminal of the forward / reverse switch 2 is connected to the main circuit breaker 1, and the output terminal of the forward / reverse switch 2 is connected to the AC circuit breaker 3 and the oil circuit breaker 4 respectively. The AC circuit breaker 3 is connected to the AC switch machine to be tested. The input terminal of the DC detection module is connected to the power supply module, and the output terminal is connected to the DC switch machine under test. The oil circuit detection module includes an oil pump group and a starting oil cylinder 22, and the oil pump group is connected to the oil circuit breaker 4. When testing the oil pump assembly, the oil pump assembly is connected to the starting oil cylinder 22 pipeline; When testing a DC or AC switch machine, the oil pump assembly is connected to the starting cylinder 22 via pipeline, and the starting cylinder 22 is connected to the oil circuit of the switch machine (SH6 or SH5 type) to be tested.

[0024] In a preferred embodiment of this utility model, the oil pump assembly includes a motor 23, a coupling 24, an oil pump 25, a filter 26, an overflow valve 27, an oil sump 28, and a check valve 29. The motor 23 is connected to the oil pump 25 via the coupling 24. The oil ports on both sides of the oil pump 25 are connected to the oil sump 28 via the filter 26 and the overflow valve 27, respectively, and a check valve 29 is connected in parallel between each oil port and the oil sump 28. The oil ports on both sides of the oil pump 25 are connected to both sides of the starting cylinder 22 to drive the piston movement of the starting cylinder 22.

[0025] Specifically, the motor 23 drives the oil pump 25 to rotate through the coupling 24. One side of the oil pump 25 is the oil inlet, which draws oil from the oil sump 28, and the other side is the oil outlet, which outputs high-pressure oil to the starting cylinder 22, driving the piston of the starting cylinder 22 to move.

[0026] When the oil pump 25 is working, the valve ball of the one-way valve 29 on the oil inlet side is lifted by the suction of the oil pump 25, and oil can be replenished to the oil pump 25 through the oil sump 28.

[0027] By setting up an oil pump group, which is connected to the starting cylinder 22, and the starting cylinder 22 is connected to the switch machine through an oil pipe, the testing of AC / DC hydraulic switch machines SH5 and SH6 can be completed; by connecting a single oil pump group to be tested to the starting cylinder, the testing of an individual oil pump group can be completed.

[0028] In a preferred embodiment of this utility model, the starting cylinder 22 is provided with a pressure testing connector.

[0029] Specifically, the pressure test connector on the starting cylinder 22 is a quick-connect pressure detection interface used to extract the hydraulic oil pressure signal of the working chamber of the cylinder in real time for external pressure gauges or sensors to read.

[0030] In a preferred embodiment of this utility model, the DC detection module includes a transformer 5, a DC circuit breaker 35, a voltage regulator 6, a rectifier 7, a DC voltmeter 8, a positioning contactor 9, a reverse position contactor 10, a stop button 11, a positioning button 12, a reverse position button 13, a positioning circuit breaker 14, a positioning ammeter 15, a reverse position circuit breaker 16, a reverse position ammeter 17, a positioning indicator light 18, and a reverse position indicator light 19. The transformer 5, voltage regulator 6 and rectifier 7 are connected in sequence to form a voltage regulating circuit, and a DC voltmeter 8 is installed between the positive and negative terminals of the rectifier 7. The output terminal of the voltage regulator 6 is connected to the stop button 11. The stop button 11 is connected to the normally open contact of the positioning contactor 9 and the normally open contact of the reverse contactor 10, respectively. The output terminal of the stop button 11 is connected to the input terminals of the positioning button 12 and the reverse button 13, respectively. The output terminal of the positioning button 12 is connected to the normally open contact of the positioning contactor 9, and the output terminal of the reverse button 13 is connected to the normally closed contact of the positioning contactor 9. The normally closed contact of the positioning contactor 9 is connected to the normally open contact of the reverse contactor 10, thus forming a control circuit. The positive terminal of the rectifier 7, the positioning contactor 9, the positioning circuit breaker 14, and the positioning action line are sequentially connected to the positioning side of the DC switch motor under test. The common terminal of the DC switch motor under test is connected to the common line. The common line, the positioning ammeter 15, the positioning circuit breaker 14, the positioning contactor 9, and the negative terminal of the rectifier 7 are sequentially connected to form a positioning action circuit. The positive terminal of the rectifier 7, the reverse contactor 10, the reverse circuit breaker 16, and the common line are connected in sequence. The reverse side, the reverse action line, the reverse ammeter 17, the reverse circuit breaker 16, the reverse contactor 10, and the negative terminal of the rectifier 7 are connected in sequence to form a reverse action circuit. A positioning indicator light 18 is connected in series between the normally open contact of the positioning contactor 9 and the normally closed contact of the reversing contactor 10, and a reversing indicator light 19 is connected in series between the normally open contact of the reversing contactor 10 and the normally closed contact of the positioning contactor 9.

[0031] Specifically, the AC380V power supply is converted to AC220V by transformer 5. Transformer 5 is a dry-type transformer. The DC power supply obtained by full-wave rectification of the AC220V power supply output by the dry-type transformer is regulated by voltage regulator 6 to obtain the DC rated power supply required by the DC hydraulic switch machine, and then the DC hydraulic switch machine is activated.

[0032] The output of voltage regulator 6 is split into two paths via stop button 11: First path: Positioning button 12 → Positioning contactor 9 coil is energized, its normally open main contact closes and its normally closed auxiliary contact opens; Second route: Reverse button 13 → Reverse contactor 10 coil is energized, its normally open main contact closes and its normally closed auxiliary contact opens.

[0033] The normally closed auxiliary contacts of the two contactors are cross-connected in series with each other's coil circuit to achieve "electrical interlocking" and prevent short circuits caused by simultaneous engagement. Releasing or pressing the stop button 11 immediately de-energizes the corresponding contactor, and the motor stops rotating.

[0034] Positioning indicator light 18: It is connected in series by the normally open contact of positioning contactor 9 and the normally closed contact of reverse contactor 10, and lights up when the positioning is engaged.

[0035] Reverse position indicator light 19: It is connected in series by the normally open contact of the reverse position contactor 10 and the normally closed contact of the positioning contactor 9, and lights up when the reverse position is engaged.

[0036] Indicator lights directly reflect the current operation status, making it easy for operators to visually confirm.

[0037] In a preferred embodiment of this utility model, the output terminal of the main circuit breaker 1 is provided with an AC voltmeter 20 and an AC ammeter 21.

[0038] Specifically, AC voltmeter 20 and AC ammeter 21 are directly connected in parallel / series to the downstream end of the main circuit breaker 1. After closing the main switch, the operator can immediately read the real-time voltage and current input to the system without the need for additional instruments, facilitating quick confirmation of power supply normality before startup. When the system experiences sudden changes in total current, voltage drops, or phase loss, both meters simultaneously provide quantitative data, allowing for immediate determination of whether the problem originates from the external network or an internal vehicle fault, significantly shortening troubleshooting time.

[0039] A hydraulic switch machine oil circuit operation detection vehicle includes a vehicle body 30, the bottom of which is equipped with casters, and a power supply module, an AC detection module, a DC detection module and an oil circuit detection module are integrated on the vehicle body 30.

[0040] Specifically, the vehicle body is equipped with casters at the bottom, allowing the entire machine to be pushed to the site by a single person without the need for a crane or forklift. This replaces traditional fixed test benches, reduces the frequency of use of special equipment, and significantly lowers the risk of personal injury. The testing vehicle can simultaneously cover three types of objects: AC / DC hydraulic switch machines and oil pump sets, avoiding the need to prepare multiple test benches and reducing equipment purchase and maintenance costs.

[0041] In a preferred embodiment of this utility model, the vehicle body 30 is provided with an operating panel 31. The operating panel 31 is provided with a main circuit breaker 1, a forward / reverse switch 2, an AC circuit breaker 3, an oil circuit breaker 4, a DC circuit breaker 35, a voltage regulator 6, a DC voltmeter 8, a stop button 11, a positioning button 12, a reverse button 13, a positioning circuit breaker 14, a positioning ammeter 15, a reverse circuit breaker 16, a reverse ammeter 17, a positioning indicator light 18, a reverse indicator light 19, a main power connector 32, an AC switch machine connector 33, and a DC switch machine connector 34.

[0042] Specifically, electrical control, protection, display, and external interfaces are integrated onto a single control panel 31, eliminating the need for operators to search for distributed switches inside or on the side of the vehicle, thus reducing the probability of misoperation. The AC switch machine connector 33 and the DC switch machine connector 34 utilize quick-connect aviation plugs, allowing for plug-and-play operation and featuring a design to prevent incorrect insertion.

[0043] The rated voltage of the AC switch machine connector 33 and the DC switch machine connector 34 is 380V and the rated current is 10A.

[0044] The rated power supply voltage of the stop button 11, positioning button 12, and reverse button 13 is 220V.

[0045] The rated voltage of the main circuit breaker 1, AC circuit breaker 3, and oil circuit breaker 4 is AC 380V, and the rated current is 5A. The rated voltage of the DC circuit breaker 35 is AC 220V, and the rated current is 5A. The rated voltage of the positioning circuit breaker 14 and the reverse positioning circuit breaker 16 is DC 220V, and the rated current is 2A.

[0046] In a preferred embodiment of this utility model, the oil pump assembly is located inside the vehicle body 30, and the starting oil cylinder 22 is installed on the side of the vehicle body 30.

[0047] Specifically, the starting cylinder 22 is installed on the side of the vehicle body. During testing, the starting cylinder 22 only needs to be connected to the switch machine once, eliminating the need for repeated handling and alignment steps. The pipeline between the starting cylinder 22 and the oil pump group is short and has fewer bends, reducing pressure loss and leakage points.

[0048] In a preferred embodiment of this utility model, the vehicle body 30 is connected to a grounding terminal and wiring, and the wiring is connected to the metal components inside the vehicle body 30 to form a continuous protective grounding network.

[0049] Example 1: Testing the working process of an AC hydraulic switch machine (SH5 / SH6) (1) Motion control The main power connector 32 is connected to an external 380V three-phase power supply, and the AC switch machine connector 33 is connected to the AC switch machine under test. The main circuit breaker 1 and the AC circuit breaker 3 are closed. The circuit voltage and current are monitored by the AC voltmeter 20 and the AC ammeter 21. The forward and reverse rotation of the AC switch machine is controlled by the forward and reverse switch 2.

[0050] (2) Oil circuit control When the oil circuit breaker 4 is closed, the motor 23 rotates, driving the oil pump 25 to start working. At this time, one side of the oil pump 25 is the oil inlet, and the other side is the oil outlet. Oil enters the oil pump 25 through the filter 26, enters one side of the starting cylinder 22 through the oil outlet, and flows out from the other side of the starting cylinder 22 back into the oil pump 25, forming a circulating test oil circuit. The starting cylinder 22 is connected to the AC switch machine's operating lever, providing a simulated load.

[0051] When the pressure reaches the safety limit of the overflow valve 27, the pressure is released through the overflow valve 27 on the oil outlet side, and the oil is returned to the oil sump 28.

[0052] Example 2: Testing the Working Process of a DC Hydraulic Switch Machine (1) Power-on preparation The main power connector 32 is connected to an external 380V three-phase power supply. The AC380V is converted to AC220V by the transformer 5. The main circuit breaker 1 and the DC circuit breaker 35 are closed, and the output current is monitored by the DC voltmeter 8.

[0053] (2) Positioning action Pressing the positioning button 12 causes the current to flow sequentially through: Rectifier 7 positive terminal → Positioning contactor 9 main contact → Positioning circuit breaker 14 → Positioning action line X1 → DC switch machine motor positioning side coil → Common line X4 → Positioning ammeter 15 → Positioning circuit breaker 14 → Positioning contactor 9 → Rectifier 7 negative terminal, to perform positioning action test on DC hydraulic switch machine.

[0054] Oil circuit route: When the oil circuit breaker 4 is closed, the motor 23 rotates and drives the oil pump 25 to start working. At this time, one side of the oil pump 25 is the oil inlet and the other side is the oil outlet. Oil enters the oil pump 25 through the filter 26, enters one side of the starting cylinder 22 through the oil outlet, and flows out from the other side of the starting cylinder 22 into the oil pump 25. The starting cylinder 22 is connected to the DC switch machine's operating rod to provide a simulated load.

[0055] (3) Reversed position Pressing the reverse button 13 causes the current to flow sequentially through: Rectifier 7 positive terminal → reverse position contactor 10 → reverse position circuit breaker 16 → reverse position action line X2 → DC switch machine motor reverse position side coil → common line X4 → reverse position ammeter 17 → reverse position circuit breaker 16 → reverse position contactor 10 → rectifier 7 negative terminal, to perform positioning action test on DC hydraulic switch machine.

[0056] Oil circuit route: When the oil circuit breaker 4 is closed, the motor 23 rotates and drives the oil pump 25 to start working. At this time, the oil pump 25 delivers pressurized hydraulic oil to one side of the starting cylinder 22 (the opposite side to the positioning action) through the oil inlet during the positioning action, pushing the piston rod to move in the opposite direction to achieve the reverse position action.

[0057] (4) Protection and Stop Pressing the stop button 11 at any time will de-energize the positioning / reversing contactor coil and immediately disconnect the main circuit.

[0058] Example 3: Performance Test of a Single Oil Pump Unit The main power connector 32 is connected to a 380V three-phase power supply. When the main circuit breaker 1 and the oil circuit breaker 4 are closed, the motor 23 is energized and starts. At this time, the piston rod of the starting cylinder 22 has no external connection (not connected to the switch machine) and is only used as a simulated load and flow / pressure detection terminal.

[0059] When the oil circuit breaker 4 is closed, the motor 23 rotates and drives the oil pump 25 to start working. At this time, one side of the oil pump 25 is the oil inlet and the other side is the oil outlet. The oil enters the oil pump 25 through the filter 26, enters one side of the starting cylinder 22 through the oil outlet, and flows out from the other side of the starting cylinder 22 into the oil pump 25, forming a test oil circuit.

[0060] The specifications of some components involved in this embodiment are shown in Table 1:

[0061] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hydraulic switch machine oil circuit action detection system, characterized in that: It includes a power supply module, an AC detection module, a DC detection module, and an oil circuit detection module; The AC testing module includes a forward / reverse switch, the input terminal of which is connected to the power supply module, and the output terminal of which is connected to an AC circuit breaker and an oil circuit breaker, respectively. The AC circuit breaker is connected to the AC switch machine to be tested. The input terminal of the DC detection module is connected to the power supply module, and the output terminal is connected to the DC switch machine under test. The oil circuit detection module includes an oil pump group, which is connected to an oil circuit breaker and a starting cylinder respectively; when detecting a DC or AC switch machine, the starting cylinder is connected to the oil circuit of the switch machine to be tested.

2. The hydraulic switch machine oil circuit action detection system according to claim 1, characterized in that: The oil pump assembly includes a motor, which is connected to the oil pump via a coupling; the oil ports on both sides of the oil pump are connected to the oil sump via filters and overflow valves, and a one-way valve is connected in parallel between each oil port and the oil sump; the oil ports on both sides of the oil pump are connected to both sides of the starting cylinder to drive the piston movement of the starting cylinder.

3. The hydraulic switch machine oil circuit action detection system according to claim 2, characterized in that: The starting cylinder is equipped with a pressure testing connector.

4. The hydraulic switch machine oil circuit action detection system according to claim 1, characterized in that: The power module includes a main circuit breaker, which is connected to an external 380V AC power supply.

5. The hydraulic switch machine oil circuit action detection system according to claim 4, characterized in that: The output terminal of the main circuit breaker is equipped with an AC voltmeter and an AC ammeter.

6. The hydraulic switch machine oil circuit action detection system according to claim 1, characterized in that: The DC detection module includes a transformer, and the transformer, voltage regulator and rectifier are connected in sequence to form a voltage regulating circuit. A DC voltmeter is installed between the positive and negative terminals of the rectifier. The voltage regulator output terminal and the stop button are connected in sequence. The stop button is connected to the positioning button, the reverse button, the positioning contactor, and the reverse contactor respectively. The positioning button is connected to the normally open contact of the positioning contactor, the reverse button is connected to the normally closed contact of the positioning contactor, and the normally closed contact of the positioning contactor is connected to the normally open contact of the reverse contactor, thus forming a control circuit. The rectifier positive terminal, positioning contactor, positioning circuit breaker, positioning action line and the positioning side of the DC switch motor under test are connected in sequence. The common terminal of the DC switch motor under test is connected to the common line. The common line, positioning ammeter, positioning circuit breaker, positioning contactor and rectifier negative terminal are connected in sequence to form a positioning action circuit. The positive terminal of the rectifier, the reverse contactor, the reverse circuit breaker, and the common line are connected in sequence. The reverse side of the switch machine motor, the reverse action line, the reverse ammeter, the reverse circuit breaker, the reverse contactor, and the negative terminal of the rectifier are connected in sequence to form a reverse action circuit.

7. The hydraulic switch machine oil circuit action detection system according to claim 6, characterized in that: A positioning indicator light is connected in series between the normally open contact of the positioning contactor and the normally closed contact of the reversing contactor, and a reversing indicator light is connected in series between the normally open contact of the reversing contactor and the normally closed contact of the positioning contactor.

8. A hydraulic switch machine oil circuit operation testing vehicle, characterized in that: The system includes a vehicle body, the bottom of which is equipped with casters, and the hydraulic switch machine oil circuit action detection system according to any one of claims 1-7 is integrated on the vehicle body.

9. The hydraulic switch machine oil circuit operation detection vehicle according to claim 8, characterized in that: The vehicle body is equipped with an operating panel, which includes a main circuit breaker, forward / reverse switch, AC circuit breaker, oil circuit breaker, DC circuit breaker, voltage regulator, DC voltmeter, stop button, positioning button, reverse button, positioning circuit breaker, positioning ammeter, reverse circuit breaker, reverse ammeter, positioning indicator light, reverse indicator light, main power connector, AC switch machine connector, and DC switch machine connector.

10. The hydraulic switch machine oil circuit operation detection vehicle according to claim 8, characterized in that: The vehicle body is equipped with a grounding terminal.

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