A device for dynamic simulation of contact state between pantograph carbon slide plate and contact line

Abstract

The present invention provides a device for dynamic simulation of the contact state between the pantograph carbon slide plate and the contact line, which can conveniently simulate various states of the locomotive pantograph and the contact line, and can control and simulate various relative position relationships and relative movement speeds between the pantograph carbon slide plate and the contact line, so as to facilitate verification of measurement data of various operating environments. It includes: a main frame unit; a contact line power drive unit, which includes four groups of parallel arranged horizontal drive modules, and a slider is provided at the upper output end of each horizontal drive module; a contact line mechanism unit, which includes two contact lines, and each contact line is correspondingly provided with a guide end rotation adjustment mechanism and a fixed end rotation adjustment mechanism; a carbon slide plate and bracket unit, which includes spring brackets on both sides, and the upper part of the spring bracket is used to fix carbon slide plates of various specifications; and a lifting platform unit, the lifting platform of the lifting platform unit is respectively connected to the bottom of the spring brackets on both sides, and drives the spring brackets on both sides to lift independently.

Description

Technical Field

[0001] The invention relates to the technical field of dynamic simulation testing, in particular to a device for dynamic simulation of the contact state between a pantograph carbon slide plate and a contact line. The invention also provides an operating system of the device. Background Art

[0002] At present, in order to conduct online analysis of the contact status between the carbon plate of the train pantograph and the contact wire and obtain dynamic measurement data, it is usually necessary to apply to the relevant railway departments to install the detection equipment on the train and conduct tests in the actual operating environment. The whole process is relatively difficult and has a long cycle. Testing in the actual operating environment is not conducive to the early development and testing of the pantograph-catenary status monitoring system. Summary of the invention

[0003] In response to the above problems, the present invention provides a device for dynamically simulating the contact state of the pantograph carbon slide plate and the contact line, which can conveniently simulate various states of the locomotive pantograph and the contact line, and can controllably simulate various relative position relationships and relative movement speeds of the pantograph carbon slide plate and the contact line, thereby facilitating the verification of measurement data in various operating environments.

[0004] A device for dynamic simulation of the contact state between a pantograph carbon slide plate and a contact line, characterized in that it comprises:

[0005] Main frame unit;

[0006] A contact line power drive unit, comprising four groups of horizontal drive modules arranged in parallel, each of which has a slider at the upper output end, and the four groups of horizontal drive modules including two groups of horizontal drive modules arranged at the left end and two groups of horizontal drive modules arranged at the right end;

[0007] A contact wire mechanism unit, comprising two contact wires, each contact wire being provided with a guide end rotation adjustment mechanism and a fixed end rotation adjustment mechanism, the end of each contact wire being fixedly mounted at the output end of the fixed end rotation adjustment mechanism, and the free end of each contact wire passing through the guide output end of the guide end rotation adjustment mechanism and convexly protruding to the left;

[0008] A carbon slide plate and bracket unit, which includes spring brackets on both sides, the upper part of the spring bracket is used to fix carbon slide plates of various specifications;

[0009] and a lifting platform unit, wherein the lifting platform of the lifting platform unit is respectively connected to the bottom of the spring brackets on both sides to drive the spring brackets on both sides to lift independently;

[0010] The guide end rotation adjustment mechanisms corresponding to the two contact lines are respectively placed on the corresponding sliders of the horizontal drive module arranged at the left end, and the fixed end rotation adjustment mechanisms corresponding to the two contact lines are respectively placed on the corresponding sliders of the horizontal drive module arranged at the right end.

[0011] It is further characterized by:

[0012] It also includes an external image capture unit, which is used to take photos and store the wear position of the carbonized plate of the pantograph, the posture and abnormal state of the carbon slide plate, and the contact state of the contact point of the dynamic simulation;

[0013] It also includes a load-bearing cable simulation frame, the lower part of which is used to suspend two contact wires, and the upper part of which is fixedly connected to a fixing component. The load-bearing cable simulation frame is used to simulate load-bearing cables. In reality, there are load-bearing cables suspending the contact wires, so that the simulation is closer to the real situation.

[0014] A carbon slide plate or two carbon slide plates are fixedly connected to the top of the spring bracket, and the corresponding carbon slide plates are assembled according to the measurement requirements;

[0015] The guide end rotation adjustment mechanism includes a slider adapter plate, a horizontal freedom rotation mechanism, a linear bearing with a clamping handle, a pitch freedom rotation mechanism, and a linear through-bearing. The slider adapter plate is fixedly connected to the corresponding slider, and the fixed end of the horizontal freedom rotation mechanism is fixedly installed on the upper part of the slider adapter plate. A straight rod is fixedly inserted into the rotation output end of the horizontal freedom rotation mechanism, and the linear bearing with a clamping handle is sleeved on the straight rod. A connecting block is fixedly connected to the linear bearing with a clamping handle, and the pitch freedom rotation mechanism is provided on one side of the connecting block. A through hole is provided at the output end of the pitch freedom rotation mechanism, and a linear through-bearing is provided in the through hole. The free end of the contact line passes through the linear through-bearing and ensures that it will not move freely when not under force.

[0016] The fixed-end rotation adjustment mechanism comprises a slider adapter plate, a horizontal degree of freedom rotation mechanism, a linear bearing with a clamping handle, and a pitch degree of freedom rotation mechanism. The slider adapter plate is fixedly connected to the corresponding slider. The fixed end of the horizontal degree of freedom rotation mechanism is fixedly mounted on the upper part of the slider adapter plate. A straight rod is fixedly inserted into the rotation output end of the horizontal degree of freedom rotation mechanism. The straight rod is sleeved with the linear bearing with a clamping handle. A connecting block is fixedly connected to the linear bearing with a clamping handle. The pitch degree of freedom rotation mechanism is provided on one side of the connecting block. A small-diameter hole and a locking hole are provided at the output end of the pitch degree of freedom rotation mechanism. The end of the contact line is inserted into the small-diameter hole and is locked by a fastener penetrating the locking hole.

[0017] Each horizontal drive module includes a servo motor, a horizontal guide rail, and a slider, and the output end of the servo motor drives the slider to move horizontally along the horizontal guide rail through a synchronous belt;

[0018] A groove sensor is provided at the end of the length direction of the horizontal guide rail of the horizontal drive module to ensure that the slider does not derail;

[0019] One slider in the two groups of horizontal drive modules arranged at the left end is provided with a micro switch, and one slider in the two groups of horizontal drive modules arranged at the right end is provided with a micro switch to ensure that the slider does not collide when the contact line moves, ensuring the safe and stable operation of the equipment;

[0020] Universal wheels are respectively installed at the four bottom corners of the main frame unit, so that the entire structure is easy to transport.

[0021] An operating system of a device based on dynamic simulation of contact state between a pantograph carbon slide plate and a contact line, characterized in that it comprises:

[0022] Device for dynamic simulation of contact state between pantograph carbon slide plate and contact wire;

[0023] The motion control module, which consists of a host computer and an electrical control unit, controls the operation of the contact line power drive unit and the lifting platform;

[0024] and synchronization modules;

[0025] The motion control module includes a contact line motion control part and a lifting platform control part. The contact line motion control part controls the position and movement speed of the left slider and the right slider, thereby controlling the position and movement speed of the contact line; the lifting platform control part is used to control the posture of the carbon slide plate. A servo electric cylinder in a vertical direction is installed on both sides of the lifting platform. By controlling the lifting distance of the servo electric cylinders on both sides, the inclination angle of the pantograph of the train on the curved section and the shaking of the pantograph are simulated;

[0026] The synchronization module synchronizes the detection results of the bow-net monitoring equipment with the known position status data of the simulation equipment, provides comparison data, and realizes the test and accuracy evaluation of the bow-net monitoring equipment; at the same time, according to the time provided by the synchronization module or the bow-net position relationship of the simulation system, it distinguishes and eliminates the image data of the corresponding moving bow-net monitoring equipment within the switching cycle of the simulation system, and realizes the bow-net operation status image data that is the same as the actual situation.

[0027] Its further features are:

[0028] The synchronization module includes the following two methods: a. Using a real-time system to unify the time of the motion control module and the pantograph-catenary monitoring system, and output the motion state information of the motion control module at any time point, including the spatial position and motion speed of the pantograph and the contact line; the pantograph-catenary monitoring system can obtain the relevant state information of the pantograph and the contact line of the simulation system at that moment according to the moment of image acquisition, and compare it with its detection results to verify the performance of the pantograph-catenary monitoring system;

[0029] b. The synchronization module provides an external trigger signal to the camera of the pantograph-catenary monitoring system, encodes or counts the trigger signal, and outputs the specified trigger signal pulse to simulate the movement status information of the pantograph and contact wire of the system, including the spatial position and movement speed of the pantograph and contact wire, so as to compare with the detection results of the pantograph-catenary status monitoring system to verify the performance of the pantograph-catenary monitoring system.

[0030] After adopting the present invention, the guide end rotation adjustment mechanism and the fixed end rotation adjustment mechanism are connected accordingly according to the state corresponding to the contact line, and the single contact line movement or the mixed movement of the two contact lines is selected. The simulation movement is completed by controlling the movement of the corresponding slider. At the same time, the spring brackets on both sides are driven to rise and fall independently through the lifting platform unit according to the parameters corresponding to the set environment. The spring brackets are installed with a single carbon slide plate or two carbon slide plates as needed, so as to perform dynamic simulation operations according to the actual environmental parameters. It can conveniently simulate various states of the locomotive pantograph and the contact line, and can controllably simulate various relative position relationships and relative movement speeds of the pantograph carbon slide plate and the contact line, so as to verify the measurement data of various operating environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of a specific embodiment of the present invention;

[0032] Figure 2 for Figure 1 A top view of

[0033] Figure 3 for Figure 1 Left view of

[0034] Figure 4 A three-dimensional diagram of the guide end rotation adjustment mechanism of the present invention;

[0035] Figure 5 It is a three-dimensional diagram of the fixed end rotation adjustment mechanism of the present invention;

[0036] Figure 6 This is a schematic diagram of the actual pantograph-catenary contact point position;

[0037] Figure 7 It is the running trajectory of the contact line in the first half of the cycle in the dynamic simulation;

[0038] Figure 8 It is the contact line commutation operation trajectory 1 in the dynamic simulation;

[0039] Fig. 9 It is the running trajectory of the contact line in the second half of the cycle in the dynamic simulation;

[0040] Fig.10 This is the second contact line commutation operation trajectory in the dynamic simulation;

[0041] Fig.11 It is a schematic diagram of the inclination angle of the carbon skateboard in the right curved motion;

[0042] Fig.12 This is a schematic diagram of the carbon skateboard shaking. DETAILED DESCRIPTION

[0043] A device for dynamic simulation of the contact state between the pantograph carbon slide plate and the contact line, see Figure 1-Figure 5 , which includes a main frame unit 10, a contact line power drive unit 20, a contact line mechanism unit 30, a carbon slide and bracket unit 40, and a lifting platform unit 50;

[0044] A contact line power drive unit 20, comprising four groups of horizontal drive modules 21 arranged in parallel, each of the upper output ends of the horizontal drive modules 21 being provided with a slider 22, the four groups of horizontal drive modules 21 comprising two groups of horizontal drive modules 21 arranged at the left end, and two groups of horizontal drive modules 21 arranged at the right end;

[0045] The contact wire mechanism unit 30 includes two contact wires 31, each contact wire 31 is correspondingly provided with a guide end rotation adjustment mechanism 32 and a fixed end rotation adjustment mechanism 33, the end of each contact wire 31 is fixedly mounted at the output end of the fixed end rotation adjustment mechanism 33, and the free end of each contact wire 31 penetrates the guide output end of the guide end rotation adjustment mechanism 32 and convexly protrudes to the left;

[0046] The carbon slide plate and bracket unit 40 includes spring brackets 41 on both sides, and the upper part of the spring bracket 41 is used to fix the carbon slide plates 60 of various specifications;

[0047] and a lifting platform unit 50, wherein a lifting platform 51 of the lifting platform unit 50 is respectively connected to the bottom of the spring brackets 41 on both sides, and drives the spring brackets 41 on both sides to lift independently;

[0048] The guide end rotation adjustment mechanisms 32 corresponding to the two contact wires 31 are respectively placed on the corresponding sliders 22 of the horizontal driving module 21 arranged at the left end, and the fixed end rotation adjustment mechanisms 33 corresponding to the two contact wires 31 are respectively placed on the corresponding sliders 22 of the horizontal driving module 21 arranged at the right end.

[0049] In a specific implementation, it also includes an external image capture unit (which can be set according to needs), which is used to take photos of the wear position of the carbonized plate of the pantograph, the posture and abnormal state of the carbon slide plate, and the contact state of the contact point of the dynamic simulation;

[0050] It also includes a load-bearing cable simulation frame 70, the lower part of which is used to suspend two contact wires 31, and the upper part of which is fixedly connected to a fixing component. The load-bearing cable simulation frame 70 is used to simulate load-bearing cables. In reality, there are load-bearing cables suspending the contact wires on the contact wires 31, so that the simulation is closer to the real situation.

[0051] A carbon slide plate 60 or two carbon slide plates 60 are fixed to the top of the spring bracket 41, and the corresponding carbon slide plates are assembled according to the measurement requirements;

[0052] The guide end rotation adjustment mechanism 32 includes a slider adapter plate 1, a horizontal degree of freedom rotation mechanism 2, a linear bearing 3 with a clamping handle, a pitch degree of freedom rotation mechanism 4, and a linear through-bearing 7. The slider adapter plate 1 is fixedly connected to the corresponding slider 22, and the fixed end of the horizontal degree of freedom rotation mechanism 2 is fixedly installed on the upper part of the slider adapter plate 1. A straight rod 5 is fixedly inserted into the rotation output end of the horizontal degree of freedom rotation mechanism 2, and a linear bearing 3 with a clamping handle is sleeved on the straight rod 5. A connecting block 6 is fixedly connected to the linear bearing 3 with a clamping handle, and a pitch degree of freedom rotation mechanism 4 is arranged on one side of the connecting block 6. A through hole is arranged at the output end of the pitch degree of freedom rotation mechanism 4, and a linear through-bearing 7 is arranged in the through hole. The free end of the contact line 31 passes through the linear through-bearing 7 to ensure that it will not move freely when not under force.

[0053] The fixed end rotation adjustment mechanism 33 includes a slider adapter plate 1, a horizontal degree of freedom rotation mechanism 2, a linear bearing with a clamping handle 3, and a pitch degree of freedom rotation mechanism 4. The slider adapter plate 1 is fixedly connected to the corresponding slider 22. The fixed end of the horizontal degree of freedom rotation mechanism 2 is fixedly mounted on the upper part of the slider adapter plate 1. A straight rod 5 is fixedly inserted into the rotation output end of the horizontal degree of freedom rotation mechanism 2. The straight rod 5 is sleeved with a linear bearing with a clamping handle. A connecting block 6 is fixedly connected to the linear bearing with a clamping handle 3. A pitch degree of freedom rotation mechanism 4 is arranged on one side of the connecting block 6. A small diameter hole 8 and a locking hole 9 are arranged at the output end of the pitch degree of freedom rotation mechanism 4. The end of the contact wire 31 is inserted into the small diameter hole 8 and is locked by a fastener penetrating the locking hole 9.

[0054] The guide end rotation adjustment mechanism 32 and the fixed end rotation adjustment mechanism 33 are used to adjust their degrees of freedom when the horizontal angle, pitch angle, and telescopic length change during the movement of the contact line mechanism unit, so as to avoid the mechanical structure from getting stuck during operation, and ensure that the contact line can still make normal contact with the carbon slide plate when it is pushed upward. The guide end rotation adjustment mechanism 32 and the fixed end rotation adjustment mechanism 33 are installed on the slider 22 of the synchronous belt linear module, and are equipped with horizontal and pitch free rotation adjustment mechanisms to prevent the contact line from getting stuck when there is an angle in the up and down or left and right directions during movement. At the same time, there is also guided sliding in the up and down directions to prevent the contact line and the carbon slide plate from having excessive pressure, increasing resistance, accelerating the wear of the carbon slide plate, and tilting the contact line mechanism. The fixed end rotation adjustment mechanism 33 fixes the contact line, and the guide end rotation adjustment mechanism 32 can guide the sliding of the contact line axial direction to prevent the contact line length in its area from getting stuck when the two sliders move back and forth;

[0055] Each horizontal driving module 21 includes a servo motor 23, a horizontal guide rail 24, and a slider 22. The output end of the servo motor 23 drives the slider 22 to move horizontally along the horizontal guide rail 24 through a synchronous belt.

[0056] A groove sensor 25 is provided at the end of the length direction of the horizontal guide rail 24 of the horizontal driving module 21 to ensure that the slider 22 does not derail during operation;

[0057] One slider 22 in the two groups of horizontal drive modules 21 arranged at the left end is provided with a micro switch 26, and one slider 22 in the two groups of horizontal drive modules 21 arranged at the right end is provided with a micro switch 26, so as to ensure that the slider does not collide when the contact line 31 moves, and ensure the safe and stable operation of the equipment;

[0058] Universal wheels 11 are respectively installed at the four bottom corners of the main frame unit 10, so that the entire structure can be easily transported.

[0059] An operating system of a device based on dynamic simulation of contact state between a pantograph carbon slide plate and a contact line, comprising:

[0060] Device for dynamic simulation of contact state between pantograph carbon slide plate and contact wire;

[0061] The motion control module, which consists of a host computer and an electrical control unit, controls the operation of the contact line power drive unit and the lifting platform;

[0062] and synchronization modules;

[0063] The motion control module includes a contact line motion control part and a lifting platform control part. The contact line motion control part controls the position and moving speed of the left and right sliders, thereby controlling the position and moving speed of the contact line. The lifting platform control part is used to control the posture of the carbon slide plate. Vertical servo electric cylinders are installed on both sides of the lifting platform. By controlling the lifting distance of the servo electric cylinders on both sides, the inclination angle of the pantograph of the train on the curved section and the shaking of the pantograph are simulated.

[0064] The synchronization module synchronizes the detection results of the bow-net monitoring equipment with the known position status data of the simulation equipment, provides comparison data, and realizes the test and accuracy evaluation of the bow-net monitoring equipment; at the same time, according to the time provided by the synchronization module or the bow-net position relationship of the simulation system, it distinguishes and eliminates the image data of the corresponding moving bow-net monitoring equipment within the switching cycle of the simulation system, and realizes the bow-net operation status image data that is the same as the actual situation.

[0065] The motion control module is composed of a host computer and an electrical control unit, which controls the operation of the contact line power drive unit and the lifting platform; preferably, the electrical control unit can be implemented using a PLC control module or a motion control board.

[0066] In order to avoid the contact line from rubbing at the same position on the carbon slide and wearing the carbon slide, the adjacent fixed points of the actual contact line are on both sides of the center line of the carbon slide, so the position of the contact point on the carbon slide is a periodic reciprocating motion.

[0067] See Figure 5-Figure 10 , L: simulation section distance M: distance between the left slider and the carbon slide N: distance between the right slider and the carbon slide a: simulation pull-out value v: train running speed θ: angle between the contact line and the center line of the carbon slide;

[0068] Figure 5 , Figure 7 The solid lines represent the two extreme positions of the actual contact line relative to the carbon slide plate. Figure 6 The solid line indicates the end position of the first half cycle and the beginning position of the second half cycle.

[0069] Figure 8 The solid line indicates where the second half cycle ends and the first half cycle begins.

[0070] Figure 7-Figure 10 In the figure, X is the movement position of the slider at the left end of the device, and Y is the movement position of the slider at the right end of the device;

[0071] After synthesis, the dynamic simulation process is as follows:

[0072] Upper half cycle T1: 0≤t≤L / v

[0073] The travel of the contact point in the first half cycle is:

[0074] Left and right slider running speed:

[0075] The left slider running track:

[0076] The right slider running track:

[0077] The first commutation cycle of the contact line T2:

[0078] The running distance of the left slider on track A: S X =2Mtanθ

[0079] The running distance of the left slider on track B: S Y =2Ntanθ

[0080] Left and right slider switching time: Second half cycle: T1+T2≤t≤T1+T2+L / v

[0081] The travel of the contact point in the second half cycle is: Left and right slider running speed: The left slider running track:

[0082]

[0083] The right slider running track:

[0084]

[0085] The second commutation cycle of the contact line T2:

[0086] The running distance of the left slider on track A: S X =2Mtanθ;

[0087] The running distance of the left slider on track B: S Y =2Ntanθ;

[0088] Assuming the specifications of the left and right modules are the same, if the linear module motor rotates one circle, the linear module slider moves a distance c. A 、n B They are the motor speeds of linear modules A and B respectively.

[0089] In the first half of the cycle:

[0090]

[0091] Therefore During the first commutation cycle of the contact line:

[0092] The left end slider moves 2Mtanθ

[0093] The right end slider moves 2Ntanθ

[0094] Ideally, the shorter the commutation time, the better. Considering the fastest running speed of the linear module and the stability of the equipment operation, set the appropriate commutation speed V of the two sliders. AT2 and V BT2 , and are required to arrive at the designated location at the same time and complete it within T time.

[0095] v AT2 =cn AT2

[0096] v BT2 =cn BT2

[0097]

[0098] In the second half of the cycle:

[0099] In the second half of the cycle:

[0100]

[0101] Therefore

[0102]

[0103] During the second commutation cycle of the contact line:

[0104] The left slider moves 2Mtanθ, and the right slider moves 2Ntanθ, which is also completed in T time.

[0105] v AT4 =cn AT4

[0106] v BT4 =cn BT4

[0107]

[0108] because

[0109]

[0110] Since M and N are related to the installation position of the device and can be adjusted, the values ​​are known. c is related to the inherent characteristics of the linear module. Therefore, it is only necessary to set the simulated train speed v, the simulated interval distance L, the pull-out value a, and the commutation period T to periodically simulate the motion trajectory between the contact line and the carbon slide plate.

[0111] The lifting platform mainly controls the posture of the carbon slide. When the train is turning, considering the centrifugal force, the heights of the two rails are inconsistent. The lifting platform can simulate the inclination of the pantograph. Fig.11 ; According to the standard, the superelevation of railway curves h≤150mm;

[0112] Vertical servo electric cylinders are installed on both sides of the lifting platform. By controlling the lifting distance of the left and right servo electric cylinders, the inclination of the pantograph of the train on the curved section is simulated. When the left servo electric cylinder is lifted, the train moves to the right curve; when the right servo electric cylinder is lifted, the train moves to the left curve.

[0113] D is the distance between the two servo electric cylinders on the simulated carbon slide, in mm. H is the height difference between the two lifting modules. W is the track head width. my country generally uses 60kg / m rails, and the track head width is 73mm, so the center distance between the two rails is 1435+73=1508mm.

[0114]

[0115] According to the above two formulas,

[0116]

[0117] If the lead of the two servo electric cylinders is Ph, the servo motor needs to rotate r times.

[0118]

[0119] In actual train operation, the pantograph will swing slightly due to airflow and track joints. The lifting platform is used to simulate the shaking of the pantograph. Fig.12 :The lifting module on the left side of the carbon slide first moves upward, then returns to the initial state, then moves downward, and then returns to the initial state, completing a complete cycle. The movement direction on the right side is opposite to simulate the shaking of the pantograph carbon slide.

[0120] f is the shaking frequency, A 左 and A 右 Ph1 is the up and down shaking amplitude of the servo electric cylinders at the left and right ends, Ph2 is the lead of the two servo electric cylinders of the lifting platform, and n1 and n2 are the motor speeds of the left and right servo electric cylinders.

[0121]

[0122] By setting the amplitude A of the pantograph shaking to be simulated 左 and A 右 , and the shaking frequency f, the software automatically calculates the speed n1 and n2 required to control the servo electric cylinder, and rotates the servo motor through the control module.

[0123] The synchronization module includes the following two methods: 1) Using a real-time system to unify the time of the motion control module and the pantograph-catenary monitoring system, and output the motion state information of the motion control module at any time point, including the spatial position and motion speed of the pantograph and contact line; the pantograph-catenary monitoring system can obtain the relevant state information of the pantograph and contact line of the simulation system at that moment according to the time of image acquisition, and compare it with its detection results to verify the performance of the pantograph-catenary monitoring system;

[0124] 2) The synchronization module provides an external trigger signal to the camera of the pantograph-catenary monitoring system, encodes or counts the trigger signal, and outputs the specified trigger signal pulse to simulate the system pantograph and contact wire motion state information (such as the spatial position and movement speed of the pantograph and contact wire) for comparison with the detection results of the pantograph-catenary status monitoring system to verify the performance of the pantograph-catenary monitoring system.

[0125] Its working principle is as follows: it connects the guide end rotation adjustment mechanism and the fixed end rotation adjustment mechanism according to the state corresponding to the contact line, and selects the movement of a single contact line or the mixed movement of two contact lines, and completes the simulation movement by controlling the movement of the corresponding slider. At the same time, according to the parameters corresponding to the set environment, the lifting platform unit drives the spring brackets on both sides to rise and fall independently. The spring bracket is installed with a single carbon slide plate or two carbon slide plates as needed, so as to perform dynamic simulation operations according to the actual environmental parameters. It can conveniently simulate various states of the locomotive pantograph and the contact line, and can controllably simulate various relative position relationships and relative movement speeds of the pantograph carbon slide plate and the contact line, so as to verify the measurement data of various operating environments.

[0126] The beneficial effects are as follows: 1. There is no need to install the pantograph-catenary status monitoring device on the actual locomotive for testing and verification. The device can conveniently simulate various states of the locomotive pantograph and contact wire;

[0127] 2. Controllable simulation of various relative position relationships and relative movement speeds between the pantograph carbon slide plate and the contact line, which is convenient for verifying the measurement data of various operating environments;

[0128] 3. The mechanism has strong expandability and flexibility. It can monitor single-carbon slide plate and double-carbon slide plate pantographs, and can also monitor single or double contact lines.

[0129] 4. It can simulate and provide various monitoring index data, and can monitor and verify the wear and abnormal state of the carbon slide plate, the posture and envelope of the pantograph, the contact wire pull-out value, and the conductor height.

[0130] 5. The control software can set the pull-out value, section distance, vehicle speed, railway line radius, shaking amplitude and shaking frequency and other parameters, and can automatically calculate the movement trajectory and speed of the contact line, as well as the lifting amplitude of the lifting platform, and control the operation of each module through communication with PLC. And it can be used as the actual data of the pantograph-catenary status monitoring system test to compare and verify the system performance.

[0131] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0132] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for dynamic simulation of the contact state between a pantograph carbon slide plate and a contact line, characterized in that: It includes: Main frame unit; A contact line power drive unit, comprising four groups of horizontal drive modules arranged in parallel, each of which has a slider at the upper output end, and the four groups of horizontal drive modules including two groups of horizontal drive modules arranged at the left end and two groups of horizontal drive modules arranged at the right end; A contact wire mechanism unit, comprising two contact wires, each contact wire being provided with a guide end rotation adjustment mechanism and a fixed end rotation adjustment mechanism, the end of each contact wire being fixedly mounted at the output end of the fixed end rotation adjustment mechanism, and the free end of each contact wire passing through the guide output end of the guide end rotation adjustment mechanism and convexly protruding to the left; A carbon slide plate and bracket unit, which includes spring brackets on both sides, the upper part of the spring bracket is used to fix carbon slide plates of various specifications; and a lifting platform unit, wherein the lifting platform of the lifting platform unit is respectively connected to the bottom of the spring brackets on both sides to drive the spring brackets on both sides to lift independently; The guide end rotation adjustment mechanisms corresponding to the two contact lines are respectively placed on the corresponding sliders of the horizontal drive module arranged at the left end, and the fixed end rotation adjustment mechanisms corresponding to the two contact lines are respectively placed on the corresponding sliders of the horizontal drive module arranged at the right end.

2. The device for dynamic simulation of the contact state between the pantograph carbon slide plate and the contact line according to claim 1, characterized in that: It also includes an external image capture unit, which is used to take pictures and store the wear position of the carbonized plate of the pantograph, the posture and abnormal state of the carbon slide plate, and the contact state of the contact point of the dynamic simulation.

3. The device for dynamic simulation of the contact state between the pantograph carbon slide plate and the contact line according to claim 2, characterized in that: It also includes a load-bearing cable simulation frame, the lower part of which is used to suspend two contact wires, and the upper part of which is fixedly connected to a fixing component. The load-bearing cable simulation frame is used to simulate load-bearing cables. In reality, there are load-bearing cables suspending the contact wires, so that the simulation is closer to the real situation.

4. The device for dynamic simulation of the contact state between the pantograph carbon slide plate and the contact line according to claim 1, characterized in that: The top of the spring bracket is fixedly connected with one or two carbon slide plates, and the corresponding carbon slide plates are assembled according to the measurement requirements.

5. The device for dynamic simulation of contact state between a pantograph carbon slide plate and a contact line according to claim 1, characterized in that: The guide end rotation adjustment mechanism includes a slider adapter plate, a horizontal freedom rotation mechanism, a linear bearing with a clamping handle, a pitch freedom rotation mechanism, and a linear through-bearing. The slider adapter plate is fixedly connected to the corresponding slider, and the fixed end of the horizontal freedom rotation mechanism is fixedly installed on the upper part of the slider adapter plate. A straight rod is fixedly inserted into the rotation output end of the horizontal freedom rotation mechanism, and the straight rod is sleeved with the linear bearing with a clamping handle. A connecting block is fixedly connected to the linear bearing with a clamping handle, and the pitch freedom rotation mechanism is provided on one side of the connecting block. A through hole is provided at the output end of the pitch freedom rotation mechanism, and a linear through-bearing is provided in the through hole. The free end of the contact line passes through the linear through-bearing to ensure that it will not move freely when not under force.

6. The device for dynamic simulation of contact state between a pantograph carbon slide plate and a contact line according to claim 1, characterized in that: The fixed-end rotation adjustment mechanism includes a slider adapter plate, a horizontal freedom rotation mechanism, a linear bearing with a clamping handle, and a pitch freedom rotation mechanism. The slider adapter plate is fixedly connected to the corresponding slider, and the fixed end of the horizontal freedom rotation mechanism is fixedly mounted on the upper part of the slider adapter plate. A straight rod is fixedly inserted into the rotation output end of the horizontal freedom rotation mechanism, and the straight rod is sleeved with the linear bearing with a clamping handle. A connecting block is fixedly connected to the linear bearing with a clamping handle, and the pitch freedom rotation mechanism is provided on one side of the connecting block. The output end of the pitch freedom rotation mechanism is provided with a small-diameter hole and a locking hole, and the end of the contact line is inserted into the small-diameter hole and is locked by a fastener passing through the locking hole.

7. The device for dynamic simulation of contact state between a pantograph carbon slide plate and a contact line according to claim 1, characterized in that: Each horizontal drive module includes a servo motor, a horizontal guide rail, and a slider. The output end of the servo motor drives the slider to move horizontally along the horizontal guide rail through a synchronous belt.

8. The device for dynamic simulation of contact state between a pantograph carbon slide plate and a contact line as claimed in claim 1, characterized in that: Universal wheels are respectively installed at the four bottom corners of the main frame unit.

9. An operating system based on a device for dynamic simulation of contact state between a pantograph carbon slide plate and a contact line, which adopts a device for dynamic simulation of contact state between a pantograph carbon slide plate and a contact line as claimed in any one of claims 1 to 8, characterized in that: It includes: Device for dynamic simulation of contact state between pantograph carbon slide plate and contact wire; The motion control module, which consists of a host computer and an electrical control unit, controls the operation of the contact line power drive unit and the lifting platform; and synchronization modules; The motion control module includes a contact line motion control part and a lifting platform control part. The contact line motion control part controls the position and movement speed of the left slider and the right slider, thereby controlling the position and movement speed of the contact line; the lifting platform control part is used to control the posture of the carbon slide plate. A servo electric cylinder in a vertical direction is installed on both sides of the lifting platform. By controlling the lifting distance of the servo electric cylinders on both sides, the inclination angle of the pantograph of the train on the curved section and the shaking of the pantograph are simulated; The synchronization module synchronizes the detection results of the bow-net monitoring equipment with the known position status data of the simulation equipment, provides comparison data, and realizes the test and accuracy evaluation of the bow-net monitoring equipment; at the same time, according to the time provided by the synchronization module or the bow-net position relationship of the simulation system, it distinguishes and eliminates the image data of the corresponding moving bow-net monitoring equipment within the switching cycle of the simulation system, and realizes the bow-net operation status image data that is the same as the actual situation.

10. The operating system of the device based on the dynamic simulation of the contact state between the pantograph carbon slide plate and the contact line according to claim 9, characterized in that: The synchronization module includes the following two methods: a. Using a real-time system to unify the time of the motion control module and the pantograph-network monitoring system, and output the motion state information of the motion control module at any time point, including the spatial position and motion speed of the pantograph and contact line; The pantograph-catenary monitoring system can obtain relevant status information of the pantograph and contact wire of the simulation system at the time of image acquisition, and compare it with the detection results to verify the performance of the pantograph-catenary monitoring system; b. The synchronization module provides an external trigger signal to the camera of the pantograph-catenary monitoring system, encodes or counts the trigger signal, and outputs the specified trigger signal pulse to simulate the movement status information of the pantograph and contact wire of the system, including the spatial position and movement speed of the pantograph and contact wire, so as to compare with the detection results of the pantograph-catenary status monitoring system to verify the performance of the pantograph-catenary monitoring system.

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