A wear testing device and method coupling biaxial vibration

Abstract

The application discloses a kind of wear test device and method of coupling double-shaft vibration, comprising: contact pair simulation component, vibration generation component, rainwater simulation group and power supply;Wherein, contact pair simulation component is simulated by sliding plate, sliding plate clamp, contact line simulation bow net contact pair;Vibration generation component simulates the vibration effect under the actual working state of bow net by transverse vibration generator and longitudinal vibration generator, and rainwater simulation component simulates the working environment of rainwater scouring to bow net contact pair by water pump and spray head etc..The application can simulate the special working condition of bow net in actual operation through rainwater simulation component, and meet the friction and wear test requirements of coupling bow net system transverse and longitudinal vibration, provide more close to real working condition environment conditions for bow net wear test research, and be beneficial to the effectiveness of bow net wear test.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pantograph-catenary mechanical devices of electric locomotives, and particularly relates to a wear test device and method coupling biaxial vibration. BACKGROUND

[0002] With the development of high speed and heavy load of electric locomotives, high speed railway has important significance for driving the economic development of the areas along the railway and improving the quality of people's life. The train obtains electric energy from the contact line through the pantograph, and the safety and stability of the pantograph-catenary system are crucial to the normal operation of the train. The pantograph-catenary system is in a multi-physical field interaction environment, and the contact area has the characteristics of high speed, large current-carrying capacity and small energy transmission area. With the increase of train running speed, the working conditions of the pantograph-catenary system are more complex, and the pantograph-catenary system also faces the challenge of changing environment. In recent years, the pantograph-catenary system frequently appears abnormal wear in the field of rail transportation, and it is urgent to explore the friction and wear performance change of the contact pair and analyze the reason for the abnormal wear of the contact pair material.

[0003] The contact state of the actual train pantograph is difficult to detect, and the wear of the contact pair material is difficult to measure, so researchers often study the pantograph-catenary current-carrying friction through equipment test and simulation method. Since there is no closed solution for the problem of abnormal wear of the pantograph-catenary system, simulation research needs to introduce assumptions and empirical formulas to simplify the simulation process, so there is a certain deviation between the simulation results and the actual results. Therefore, the research on the pantograph-catenary current-carrying friction and wear based on the test equipment is still the main means in the field of scientific research.

[0004] At present, the pantograph-catenary system friction and wear test equipment is mainly divided into ring-block type, disc-pin type and wire-block type. The ring-block type and disc-pin type are rigid contact, which has certain difference with the flexible contact of the pantograph-catenary system in high speed railway. In addition, the traditional test equipment lacks simulation modification for special working conditions, and cannot realize the test research of special working conditions. SUMMARY

[0005] The main purpose of the present application is to provide a wear test device and method coupling biaxial vibration, so as to solve the problem that the pantograph-catenary system wear test equipment in the prior art cannot better simulate the complex working conditions of the pantograph-catenary system in the actual situation.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme: a wear test device coupling biaxial vibration, the wear test device coupling biaxial vibration comprises:

[0007] a rack;

[0008] a contact pair simulation assembly comprising a sliding plate, a sliding plate clamp, a contact wire, an insulator and an insulating plate; the sliding plate is fixed on the sliding plate clamp, the contact wire is arranged above the sliding plate through a load bearing cable and is in contact with the sliding plate, and the load bearing cable is arranged on the rack.

[0009] The insulator is connected to the contact wire, and the insulating plate is fixedly arranged below the slide plate clamp by the support disc;

[0010] The vibration generating assembly comprises a transverse vibration generator and a longitudinal vibration generator; the transverse vibration generator is installed on the support disc to generate horizontal amplitude of the support disc, and the longitudinal vibration generator is in contact with the bearing cable through a vibration support to generate vertical amplitude of the bearing cable;

[0011] The rainwater simulation assembly comprises a water pump and a spray head connected to the water pump through a hose; the spray head is arranged above the contact wire and faces the contact wire and the slide plate;

[0012] In addition, a power supply for the coupling biaxial vibration abrasion test device.

[0013] Optionally, the coupling biaxial vibration abrasion test device further comprises a motion simulation assembly, the motion simulation assembly comprising a track, a vehicle body and a first driving motor; the vehicle body is installed on the track, and the first driving motor is installed on the vehicle body and used to drive the vehicle body to move; and the support disc is fixedly arranged on the vehicle body.

[0014] Optionally, the coupling biaxial vibration abrasion test device further comprises a pressure loading assembly, the pressure loading assembly comprising a second driving motor and the support disc; the support disc is arranged on the vehicle body through connection with the second driving motor, and the second driving motor is used to lift and lower the support disc to generate contact pressure of the contact pair simulation assembly.

[0015] Optionally, the coupling biaxial vibration abrasion test device further comprises a data detection assembly, the data detection assembly comprising a contact pressure detection member, a friction force detection member, a voltage detection member, a current detection member, a longitudinal vibration detection member, a transverse vibration detection member and a data acquisition member;

[0016] The contact pressure detection member and the friction force detection member are fixedly arranged between the insulating plate and the support disc; the contact wire is in contact with the slide plate and connected with the power supply to form a current loop; the voltage detection member is connected in parallel with the current loop; the current detection member is connected in series with the current loop; the longitudinal vibration detection member is installed on the bearing cable connected with the contact wire; the transverse vibration detection member is installed on the support disc; and the data acquisition member is electrically connected with the contact pressure detection member, the friction force detection member, the voltage detection member, the current detection member, the longitudinal vibration detection member and the transverse vibration detection member respectively and acquires data respectively.

[0017] Optionally, the wear test device coupled with double-axis vibration further comprises a tension control assembly, the tension control assembly comprises an electric winch and the load cable, the electric winch is fixedly arranged at one end of the load cable and connected with the load cable, and the load cable is connected with one end of the contact wire through the support and turning of the rack.

[0018] Optionally, the wear test device coupled with double-axis vibration further comprises a control assembly, the control assembly comprises a PC, a water amount control module connected with the water pump, a vibration control module connected with the vibration generating assembly, a speed control module connected with the first driving motor, a pressure control module connected with the second driving motor, a tension control module connected with the electric winch, and a power supply control module connected with the power supply.

[0019] Optionally, the rainwater simulation assembly further comprises a water collector and a shower head support, the water collector is arranged between the slide plate clamp and the insulating plate and used for collecting rainwater, and the shower head support is connected with the water collector at one end and connected and fixed with the shower head at the other end.

[0020] Optionally, the rainwater simulation assembly further comprises a plurality of water tanks, at least one water tank is connected with the water collector through a hose and used for collecting simulated rainwater.

[0021] Optionally, the radial angle between the slide plate and the contact wire is less than 90°.

[0022] In another aspect, the present application further provides a wear test method coupled with double-axis vibration, the wear test method coupled with double-axis vibration is based on the wear test device coupled with double-axis vibration as described above, and the test method comprises the following steps:

[0023] controlling the electric winch to rotate through the tension control module so that the tension of the contact wire reaches a preset value;

[0024] controlling the support disc to rise through the pressure control module so that the contact pressure of the contact pair simulation assembly reaches a preset value;

[0025] starting the power supply so that the loop current reaches a preset value;

[0026] controlling the first driving motor to rotate through the speed control module so as to drive the vehicle body to move;

[0027] controlling the shower head to spray water through the water amount control module, and making the contact wire produce longitudinal vibration and the slide plate produce transverse vibration through the vibration control module;

[0028] collecting the voltage, loop current, friction, contact pressure and vibration data in the contact pair simulation assembly;

[0029] Close the vibration generating assembly, the rain simulation assembly, the motion simulation assembly, the power supply and the data detection assembly in sequence, control the pressure loading assembly to lower the support disc, take out the slide plate and calculate the wear of the slide plate.

[0030] Compared with the prior art, the application has at least the following beneficial effects: the contact pair simulation assembly formed by the slide plate, the slide plate clamp and the contact wire simulates the working state of the pantograph and the contact wire, the spray head and the water pump are arranged at the corresponding positions of the contact pair simulation assembly to spray and flush the contact pair part to simulate the special working condition in the rainfall environment, compared with the existing test device, the test device of the application not only can simulate the special working condition, but also makes the structure more consistent with the real running state; at the same time, the longitudinal vibration generator and the transverse vibration generator of the vibration generating assembly simulate the vibration state of the pantograph and the contact wire in the running, compared with the existing rigid contact test device, the test device of the application can simulate the working posture of the pantograph and the contact wire, and combined with the rain simulation assembly, the simulation degree of the test device of the application greatly approaches the actual working state, which is great help to the accuracy of the test data and the effectiveness of the test results. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic view of an embodiment of the wear test device coupled with biaxial vibration of the application;

[0032] Figure 2 It is a structural schematic view of an embodiment of the wear test device coupled with biaxial vibration of the application; Figure 1 It is a partial enlarged view of A in the figure;

[0033] Figure 3 It is a position relationship between the slide plate and the contact wire when the test is carried out by using the wear test device coupled with biaxial vibration of the application;

[0034] Figure 4 It is an embodiment of the data detection assembly of the wear test device coupled with biaxial vibration of the application;

[0035] Figure 5 It is a component block diagram of the control assembly in the application;

[0036] Figure 6 It is a flow chart of the wear test method coupled with biaxial vibration provided by the application;

[0037] Markings in the figure:

[0038] 1-frame; 2-contact pair simulation assembly; 21-slipper; 22-contact line; 23-slipper clamp; 24-insulator; 25-insulating plate; 3-rain simulation assembly; 31-water tank; 32-water pump; 33-sprinkler; 34-water collector; 35-sprinkler support; 36-hose; 4-vibration generating assembly; 41-longitudinal vibration generator; 42-lateral vibration generator; 5-motion simulation assembly; 51-track; 52-car body; 53-first drive motor; 6-pressure loading assembly; 61-second drive motor; 62-supporting disc; 71-contact pressure detection piece; 72-friction force detection piece; 73-voltage detection piece; 74-current detection piece; 75-longitudinal vibration detection piece; 76-lateral vibration detection piece; 77-data acquisition piece; 8-tension control assembly; 81-electric winch; 82-load bearing cable; 91-PC; 92-water amount control module; 93-vibration control module; 94-speed control module; 95-pressure control module; 96-tension control module; 97-power supply control module; 10-power supply; DETAILED DESCRIPTION

[0039] The application will be described in further detail below with reference to the drawings.

[0040] In order to make the purpose, technical solutions and advantages of the application more clear, the application will be described in further detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and do not limit the application.

[0041] Example 1

[0042] In this embodiment, as shown in Figure 1 , 2 , the wear test device coupled with double-axis vibration comprises:

[0043] a frame; a contact pair simulation assembly comprising a slipper, a slipper clamp, a contact line, an insulator and an insulating plate; the slipper is fixed on the slipper clamp, the contact line is arranged above the slipper through a load bearing cable and is in contact with the slipper, the load bearing cable is arranged on the frame; the insulator is connected on the contact line, and the insulating plate is fixedly arranged below the slipper clamp through a supporting disc;

[0044] a vibration generating assembly comprising a lateral vibration generator and a longitudinal vibration generator; the lateral vibration generator is installed on the supporting disc to make the supporting disc generate a horizontal amplitude, and the longitudinal vibration generator is in contact with the load bearing cable through a vibration support to make the load bearing cable generate a vertical amplitude;

[0045] The rainwater simulation assembly comprises a water pump and a spray head connected with the water pump through a hose, the spray head is located above the contact line and is arranged towards the contact line and the slide plate;

[0046] And a power supply for supplying power to the coupling biaxial vibration wear testing device.

[0047] Specifically, the rack is fixed on the ground or base by deep-buried screws and welding, and a rotating wheel is installed at the top of the rack to avoid abrasion of the bearing cable caused by the support when pulling the contact line.

[0048] The slide plate is a metal-impregnated slide plate used in an actual railway system, and the contact line is a pure copper contact line used in an actual railway system. The size of the slide plate is optionally 30*30*500mm, and the contact line can be a CT85 TCG-85 type copper double-groove line with a length of 7m. As shown in Figure 3 The angle between the slide plate and the contact line is less than 90° to simulate the pull-out value of the pantograph. The slide plate clamp is made of pure copper to reduce the resistance of the clamp, which has a fastening effect on the slide plate.

[0049] The insulator is connected to the contact line, preferably at both ends of the contact line. The insulator connected to the contact line can be an FQB-25 / 8 silicone rubber composite insulator used in an actual railway system, with a rated voltage of 25kV. The insulating plate is made of an epoxy resin insulating plate with a thickness of 20mm and a withstand voltage of 25kV. The materials of the pantograph-catenary contact pair are taken from the actual railway system to ensure that the material selection of the device is consistent with the actual working pantograph-catenary system.

[0050] The vibration generator can be a GT-60 type wheel-type vibrator, which can realize instantaneous start and stop and adjust the vibration frequency and amplitude.

[0051] The water pump and the spray head of the rainwater simulation assembly are connected by a hose. Water is supplied under the action of the water pump and sprayed by the spray head to provide a simulated environment for rainwater erosion. The water pump can control the amount of sprayed water, and the spray mode can be controlled by replacing the spray head. The water pump can be a BSP-T small self-priming pressure water pump, and the water pump realizes the discontinuity of water spraying through a control switch.

[0052] Optionally, the rainwater simulation assembly further comprises a plurality of water tanks, at least one of which is connected to the water collector through a hose for collecting simulated rainwater.

[0053] Optionally, the rainwater simulation assembly further comprises a water collector and a spray head support, the water collector is arranged between the slide plate clamp and the insulating plate and is used to collect rainwater, and the spray head support is connected to the water collector at one end and connected and fixed to the spray head at the other end.

[0054] For reference Figure 1 、 Figure 2 The spray head is fixed on the water collector through the spray head support. The water pump draws rainwater from the water tank, sprays the contact pair through the spray head, and then the rainwater is collected by the water collector and flows back to the water tank through the hose, so as to avoid the influence of rainwater on the test equipment.

[0055] In the embodiment, the test device simulates the working state of the pantograph and the contact wire through the contact pair formed by the slide plate, the slide plate clamp and the contact wire, and simulates the special working condition under the rainfall environment through the spray head and the water pump arranged at the corresponding position of the contact pair simulation assembly. Compared with the existing test device, the test device not only can simulate the special working condition, but also makes the structure more consistent with the actual running state. At the same time, the longitudinal vibration generator and the transverse vibration generator of the vibration generating assembly simulate the vibration state of the pantograph and the contact wire in operation. Compared with the existing rigid contact test device, the test device of the present application can simulate the working posture of the pantograph and the contact wire, and the simulation degree of the test device is greatly close to the actual working state in combination with the rainwater simulation assembly. The accuracy of the test data and the effectiveness of the test results are greatly beneficial.

[0056] In some embodiments, the wear test device coupled with biaxial vibration further comprises a motion simulation assembly, the motion simulation assembly comprising a track, a vehicle body and a first drive motor; the vehicle body is installed on the track, the first drive motor is installed on the vehicle body and is used to drive the vehicle body to move, and the support disc is fixedly arranged on the vehicle body.

[0057] The setting of the motion simulation assembly can simulate the friction between the contact wire and the pantograph slide plate in the working state, so as to perform the wear performance test. Under the action of the first drive motor, the vehicle body moves on the track, and the slide plate moves and rubs in the state of contacting with the contact wire, which produces loss, and is the same as the pantograph slide plate wear process in actual work, so as to test and study the wear performance of the slide plate.

[0058] Further, the wear test device coupled with biaxial vibration further comprises a pressure loading assembly, the pressure loading assembly comprising a second drive motor and the support disc, the support disc being arranged on the vehicle body through the connection with the second drive motor, and the second drive motor being used to lift the support disc to generate the contact pressure of the contact pair simulation assembly.

[0059] The support disc is used for supporting the carrying function, comprises a contact pair simulation assembly and a transverse vibration generator, and is connected with the motion simulation assembly to realize the effect of driving the carrying object on the support disc to move, and the connection mode of the support disc with the vehicle body is fixed connection through the second driving motor, one end of the second driving motor is fixed on the vehicle body through bolts, and the output end is fixedly connected with the support disc, the second driving motor can drive the support disc to lift, and indirectly change the contact pressure of the slide plate in the contact pair simulation assembly and the contact line.

[0060] Preferably, the second driving motor is a stepping motor, and specifically can be a 42 stepping motor, the maximum load of the motor is 60 kg, and the contact pressure range that can be provided for the contact pair is 0-400 N.

[0061] In the embodiment, the motion simulation assembly and the pressure loading assembly are added to the wear test device of the coupled double-shaft vibration through improvement design, different dynamic changes of the pantograph and the contact line in the working state can be simulated, friction between the slide plate and the contact line is generated, the contact pressure of the contact pair is changed, the simulation effect is closer to the real working condition, the working condition that can be simulated by the test device is more abundant, and the test effect is better.

[0062] In some embodiments, the wear test device of the coupled double-shaft vibration further comprises a data detection assembly, the data detection assembly comprises a contact pressure detection piece, a friction force detection piece, a voltage detection piece, a current detection piece, a longitudinal vibration detection piece, a transverse vibration detection piece and a data acquisition piece; see Figure 4 ,

[0063] The contact pressure detection piece and the friction force detection piece are fixedly arranged between the insulating plate and the support disc, the contact line is in contact with the slide plate and connected with the power supply to form a current loop, the voltage detection piece is connected in parallel with the current loop, the current detection piece is connected in series with the current loop, the longitudinal vibration detection piece is installed on the load cable connected with the contact line, the transverse vibration detection piece is installed on the support disc, and the data acquisition piece is electrically connected with the contact pressure detection piece, the friction force detection piece, the voltage detection piece, the current detection piece, the longitudinal vibration detection piece and the transverse vibration detection piece respectively and acquires data respectively.

[0064] Optionally, the power supply and the slide plate and the contact line form a series loop, and a load is arranged in the power supply to meet the operation requirement of a low-resistance loop. The power supply adopts an alternating current power supply, the output current range is 0-200 A, and the frequency is 50 Hz, and a direct current power supply can be replaced according to the test requirement.

[0065] Optionally, the measurement range of the contact pressure detection member is 0-400N, the measurement range of the friction force detection member is 0-200N; the voltage detection member is connected in parallel with the contact interface formed by the contact wire / slipper; the current detection member adopts a Hall current sensor, which is installed in series in the power supply circuit; the measurement range of the current detection member is 0-150A; the longitudinal vibration detection member is installed on the bearing cable connected with the contact wire, and the transverse vibration detection member is installed on the support disc. The frequency range of the data acquisition member is 0-80MHz.

[0066] Further, referring to Figure 5 , the wear test device coupled with the double-axis vibration further comprises a control assembly, the control assembly comprising a PC, a water amount control module connected with the water pump, a vibration control module connected with the vibration generating assembly, a speed control module connected with the first driving motor, a pressure control module connected with the second driving motor, a tension control module connected with the electric winch, and a power supply control module connected with the power supply.

[0067] Optionally, the PC comprises a data analysis system, which combines the voltage and current waveforms collected by the data detection assembly, calculates the contact resistance of the pantograph-catenary contact pair according to formula (1), and calculates the discharge energy according to formula (2);

[0068]

[0069] In formula (1), R represents the contact resistance, U represents the contact voltage, and I represents the current.

[0070]

[0071] In formula (2), E represents the discharge energy, U represents the discharge voltage, and I represents the current.

[0072] The data analysis system combines the contact pressure and friction force waveforms collected by the data detection assembly, and calculates the friction coefficient of the pantograph-catenary contact pair according to formula (3);

[0073]

[0074] In formula (3), μ represents the friction coefficient, f represents the friction force, and N represents the contact pressure.

[0075] The data analysis system combines the longitudinal vibration and transverse vibration waveforms collected by the data detection assembly, and analyzes the vibration frequency and vibration amplitude.

[0076] Through the association of the data analysis system and the data detection assembly, the automatic analysis of the collected data can be realized, and the automation degree of the test device, the test calculation efficiency, and the accuracy of the test results can be improved.

[0077] In some embodiments, the wear test device coupled with biaxial vibration further comprises a tension control assembly, the tension control assembly comprising a motor winch and the load cable, the motor winch being fixedly arranged at one end of the load cable and connected with the load cable, and the load cable being connected with one end of the contact wire through the support diversion of the rack.

[0078] The motor winch is internally provided with a force sensor, which facilitates accurate control of tension, and is fixed to the ground through bolts. The maximum load of the motor winch is 16kN, and in combination with the tension setting of the contact wire in the actual railway, the tension of the contact wire in the test device can be optionally set to 10kN, so as to adaptively simulate the tension state of the contact wire in the actual working condition in the test device, increase the control variable of friction loss research, and make the test data and conclusion more reliable.

[0079] In summary, the rack, the contact pair simulation assembly, the motion simulation assembly, the pressure loading assembly, the tension control assembly, the control assembly and the power supply are cooperated with each other, the running condition of the actual pantograph-catenary system is greatly restored, the contact resistance, discharge, friction coefficient and vibration data of the contact pair are analyzed through the cooperation of the data detection assembly and the data analysis system, data support is provided for exploring the change of the friction and wear performance of the pantograph-catenary contact pair, and the rain environment and vibration condition can be effectively simulated through the cooperation of the rain simulation assembly and the vibration generation assembly, so as to provide equipment basis for solving the abnormal wear of the contact pair material. The present application has reasonable design and stable structure, greatly restores the running condition of the actual pantograph-catenary system, and can be modified to carry out current-carrying friction and wear test under other special conditions, so as to provide equipment basis for exploring the friction and wear mechanism of the pantograph-catenary system and solving the abnormal wear of the pantograph-catenary contact pair material.

[0080] The present application also provides a wear test method coupled with biaxial vibration, as shown in Figure 6 The wear test method coupled with biaxial vibration is based on the wear test device coupled with biaxial vibration as described above, and the test method comprises the following steps:

[0081] Step S1, the motor winch is controlled to rotate by the tension control module, so that the tension of the contact wire reaches a preset value;

[0082] Step S2, the support disc is controlled to rise by the pressure control module, so that the contact pressure of the contact pair simulation assembly reaches a preset value;

[0083] Step S3, the power supply is started to make the loop current reach a preset value;

[0084] Step S4, the first driving motor is controlled to rotate by the speed control module, so as to drive the vehicle body to move;

[0085] Step S5, controlling the water jet of the spray head by the water amount control module, and making the contact wire produce longitudinal vibration and the slide rail produce transverse vibration by the vibration control module;

[0086] Step S6, collecting voltage, loop current, friction, contact pressure and vibration data in the contact pair simulation assembly; and analyzing contact resistance, discharge energy, friction coefficient and vibration data.

[0087] Step S7, sequentially closing the vibration generation assembly, the rain simulation assembly, the motion simulation assembly, the power supply and the data detection assembly, controlling the pressure loading assembly to make the support disc descend, taking out the slide rail and calculating the wear amount of the slide rail.

[0088] The wear test method coupled with biaxial vibration provided by the application is based on the wear test device coupled with biaxial vibration in the foregoing embodiments, each control module in the control assembly is used to control the simulation environment conditions such as tension, pressure and speed, each detection element of the data detection assembly is used to collect data, and then the corresponding test results are obtained according to various data, and the test requirements of various preset environment conditions can be met, compared with the existing test equipment and method, the application has stronger application adaptation ability.

[0089] The above only describes the preferred embodiments of the application and is not used to limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A wear testing apparatus that couples biaxial vibration, characterized by, The utility model relates to a kind of wear test device for simulating contact pair of high-speed railway, including: Rack; Contact pair simulation component, including slide plate, slide plate clamp, contact line, insulator and insulating plate;The slide plate is fixed on the slide plate clamp, the contact line is arranged above the slide plate by force cable and is in contact with the slide plate, the force cable is arranged on the rack; The insulator is connected on the contact line, and the insulating plate is fixedly arranged below the slide plate clamp by support disc; Vibration generating component, including transverse vibration generator and longitudinal vibration generator;The transverse vibration generator is installed on the support disc, so that the support disc generates horizontal direction amplitude, and the longitudinal vibration generator is in contact with the force cable by vibration support, so that the force cable generates vertical direction amplitude; Rainwater simulation component, including water pump and nozzle connected with the water pump by hose, the nozzle is located above the contact line and is arranged towards the contact line and the slide plate; And, power supply for supplying power to the coupled double-shaft vibration wear test device; Further including motion simulation component, the motion simulation component includes track, car body and first drive motor;The car body is installed on the track, and the first drive motor is installed on the car body and is used to drive the car body to move, and the support disc is fixedly arranged on the car body; Further including pressure loading component, the pressure loading component includes second drive motor and the support disc, and the support disc is arranged on the car body by being connected with the second drive motor, and the second drive motor is used to lift the support disc to generate the contact pressure of the contact pair simulation component; The radial angle between the slide plate and the contact line is less than 90 °.

2. The coupled biaxial vibratory wear testing apparatus of claim 1, wherein, Further including data detection component, the data detection component includes contact pressure detection piece, friction force detection piece, voltage detection piece, current detection piece, longitudinal vibration detection piece, transverse vibration detection piece and data acquisition piece; The contact pressure detection piece and the friction force detection piece are fixedly arranged between the insulating plate and the support disc, the contact line is in contact with the slide plate and is connected with the power supply to form current loop, the voltage detection piece is connected in parallel with the current loop, the current detection piece is connected in series with the current loop, the longitudinal vibration detection piece is installed on the force cable connected with contact line, the transverse vibration detection piece is installed on the support disc, and the data acquisition piece is electrically connected with the contact pressure detection piece, the friction force detection piece, the voltage detection piece, the current detection piece, the longitudinal vibration detection piece and the transverse vibration detection piece respectively and collects data respectively.

3. The abrasion testing device for coupling biaxial vibrations according to claim 2, characterized in that, Further including tension control component, the tension control component includes electric winch and the force cable, the electric winch is fixedly arranged at one end of the force cable and is connected with the force cable, and the force cable is connected with one end of the contact line by the support turning of the rack.

4. The coupled biaxial vibration abrasion testing device according to claim 3, wherein The control assembly comprises a PC, a water amount control module connected with the water pump, a vibration control module connected with the vibration generating assembly, a speed control module connected with the first driving motor, a pressure control module connected with the second driving motor, a tension control module connected with the electric winch, and a power supply control module connected with the power supply.

5. The coupled biaxial vibratory wear testing apparatus of claim 1, wherein, The rainwater simulation assembly further comprises a water collector and a shower head support, the water collector is arranged between the slide plate clamp and the insulating plate and is used for collecting rainwater, one end of the shower head support is connected with the water collector, and the other end is connected and fixed with the shower head.

6. The coupled biaxial vibratory wear testing apparatus of claim 5, wherein, The rainwater simulation assembly further comprises a plurality of water tanks, at least one water tank is connected with the water collector through a hose and is used for collecting simulated rainwater.

7. A method for coupling biaxial vibration abrasion test, applied to the coupling biaxial vibration abrasion test device of claim 4, characterized in that, The method comprises the following steps: S1: controlling the electric winch to rotate through the tension control module, so that the contact wire tension reaches a preset value; S2: controlling the support disc to rise through the pressure control module, so that the contact pressure of the contact pair simulation assembly reaches a preset value; S3: starting the power supply to make the loop current reach a preset value; S4: controlling the first driving motor to rotate through the speed control module, so as to drive the vehicle body to move; S5: controlling the shower head to spray water through the water amount control module, and making the contact wire produce longitudinal vibration and the slide plate produce transverse vibration through the vibration control module; S6: collecting voltage, loop current, friction, contact pressure and vibration data in the contact pair simulation assembly; S7: sequentially closing the vibration generating assembly, the rainwater simulation assembly, the motion simulation assembly, the power supply and the data detection assembly, controlling the pressure loading assembly to make the support disc descend, taking out the slide plate and calculating the wear amount of the slide plate.

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