Urban rail transit contact power supply traction device

Abstract

The present application relates to the technical field of urban rail transit, and discloses a contact type power supply traction device for urban rail transit, which comprises a carriage, a control vehicle head, a circuit auxiliary cleaning mechanism and a power receiving mechanism; the control vehicle head is arranged at the front side of the carriage; the circuit auxiliary cleaning mechanism is arranged at the top end of the carriage and can automatically clean sundries on the surface of the overhead line conductor, thereby avoiding unstable current collection or arc ablation caused by poor contact and ensuring the reliability of subsequent power collection; the power receiving mechanism is arranged at the top end of the carriage and located at the rear side of the circuit auxiliary cleaning mechanism, and can stably slide with the overhead line conductor to obtain electric energy. The contact type power supply traction device for urban rail transit realizes automatic operation of overhead line cleaning without stopping the vehicle, reduces the risk of arc ablation, and ensures that the power receiving structure can fully adhere to the overhead line in the curve section and ramp section, thereby avoiding instantaneous power failure caused by mechanical movement.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of urban rail transit, in particular to a contact type power supply traction device for urban rail transit. BACKGROUND

[0002] The contact type power supply traction device for urban rail transit is the core system for urban rail transit vehicles such as subways, light rails, and tramcars to obtain power. The device currently used is a patent with the application publication number CN115447392A, which is a contact type power supply traction device for urban rail transit. It includes a connecting device. The top of the connecting device is symmetrically provided with a conducting rod, and the top of the connecting device is movably connected with the left end of the conducting rod. The right end of the conducting rod is provided with a movable device, and the right end of the conducting rod is movably connected with the outer surface of the movable device. The top of the movable device is provided with a conducting device, and the top of the movable device is movably connected with the bottom of the conducting device. The top of the conducting device is provided with a mounting device, and the top of the conducting device is movably connected with the bottom of the mounting device. The connecting device includes a connecting frame. The bottom of the connecting frame is uniformly provided with a conducting column, and the bottom of the connecting frame is fixedly connected with the top of the conducting column.

[0003] In the prior art, the catenary is exposed to the outdoors for a long time, and is prone to accumulate dust, oxide layers, bird droppings, fallen leaves, plastic films, and other sundries, and may even be entangled with kite strings, branches, and other foreign objects. These sundries can isolate the carbon slide plate from the catenary, causing the contact resistance to increase, the current transmission to be unstable, the vehicle to jerk, the traction motor to make abnormal noises, and an arc to be generated when the contact is poor, which can cause the carbon slide plate to partially melt and the catenary to break. The existing cleaning method requires the line to be shut down at night, and the cleaning is performed by track cars or manual ladder operations, which limits other work on the line maintenance. Moreover, the existing power receiving mechanism has a rigid or simple hinged conductive connection, and the angle of the carbon slide plate of the pantograph is fixed. During vehicle travel, due to track unevenness and vibration, the carbon slide plate may deviate laterally or change in height, causing the contact pressure to deviate from the rated value, resulting in separation of the carbon slide plate from the catenary and generation of an arc. SUMMARY

[0004] The present application aims to provide a contact type power supply traction device for urban rail transit to at least solve the problems mentioned in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a contact type power supply traction device for urban rail transit, comprising:

[0006] a car body;

[0007] a control vehicle head arranged at the front side of the car body;

[0008] The circuit auxiliary cleaning mechanism is arranged at the top end of the vehicle compartment and can automatically clean sundries on the surface of the overhead line, avoids unstable current collection or arc ablation caused by poor contact, and guarantees the reliability of subsequent power collection.

[0009] The power receiving mechanism is arranged at the top end of the vehicle compartment and located at the rear side of the circuit auxiliary cleaning mechanism, and can stably and slidably contact the overhead line to collect electric energy.

[0010] Preferably, the circuit auxiliary cleaning mechanism comprises a storage box, a slide rail assembly, a folding door and a first electric telescopic rod. The storage box is fixedly installed on the top of the vehicle compartment. The slide rail assembly is installed on the top of the vehicle compartment and located at the left and right sides outside the opening. The folding door is arranged on the inner side of the left and right slide rail assemblies. The first electric telescopic rod is two in number, and the two first electric telescopic rods are respectively installed at the left and right rear sides of the top of the storage box. The telescopic end of the first electric telescopic rod is connected with the top end of the folding door. The first electric telescopic rod is electrically connected with the control vehicle head. The inside of the storage box is provided with a position adjusting component, and the front side of the position adjusting component is provided with a cleaning component.

[0011] Preferably, the cleaning component comprises: a groove shell, a second screw rod assembly, a second motor, a moving seat, a groove seat, a third motor, a cleaning claw, a third screw rod assembly, a connecting rod and a connecting seat; the groove shell is installed on the front side of the driving component, the inner cavity of the groove shell is provided with a groove communicated with the outside on the left and right sides and the middle of the front end in the up-down direction; the number of the second screw rod assembly is two, and the two second screw rod assemblies are respectively connected to the left and right ends of the front side of the groove shell in the up-down direction through bearings; the number of the second motor is two, and the two second motors are respectively installed on the left and right sides of the bottom end of the front side of the groove shell; the rotating ends of the left and right second motors are respectively connected with the shaft centers of the screw rods of the left and right second screw rod assemblies; the second motor is electrically connected with the control head; the number of the moving seat is two, and the two moving seats are respectively inserted into the grooves on the left and right sides of the front side of the inner cavity of the groove shell; the up-down moving seats are respectively connected with the screw nuts of the left and right second screw rod assemblies; the number of the groove seat is two, and the two groove seats are respectively installed on the front side of the up-down moving seats; the number of the third motor is two, and the two third motors are respectively installed on the rear side of the up-down moving seats; the rotating end of the third motor extends to the front side of the groove seat through the moving seat; the third motor is electrically connected with the control head; the number of the cleaning claw is two groups, and the number of the cleaning claw in each group is two; the two groups of cleaning claws are respectively connected to the inner sides of the left and right ends of the up-down groove seats through shafts; the number of the third screw rod assembly is two, and the screw rods of the two third screw rod assemblies are respectively installed on the front side of the rotating end of the up-down third motor; the number of the connecting rod is two groups, and the number of the connecting rod in each group is two; one end of the connecting rod in each group is respectively connected to the inner side of the up-down cleaning claw through a shaft; the number of the connecting seat is two, and the two connecting seats are respectively connected to the outer side of the other end of the two groups of connecting rods through a shaft; the up-down connecting seats are respectively connected with the screw nuts in the up-down third screw rod assemblies.

[0012] Preferably, the power receiving mechanism comprises: an insulating support seat, a rotating drum, a lower arm support, a connecting arm, an air bag type cylinder, an upper arm support, a power transmission device, a circuit breaker, a fixed conductive rod, a movable connecting part and a movable conductive rod; the insulating support seat is fixedly installed on the top of the carriage and located behind the storage box; the number of the rotating drum is two, and the two rotating drums are respectively rotatably connected to the front and rear sides of the top end of the insulating support seat through bearing seats along the left and right directions; the number of the lower arm support is two groups, and the number of each group of the lower arm support is two; one end of each group of the lower arm support is respectively installed on the left and right sides of the outside of the front and rear rotating drums; the number of the connecting arm is two, and the front and rear ends of the two connecting arms are respectively rotatably connected to the inner sides of the front and rear lower arm supports through shaft seats; the number of the air bag type cylinder is two, and the two air bag type cylinders are respectively rotatably installed on the front and rear ends of the left and right sides of the top end of the insulating support seat through shaft seats; the telescopic ends of the two air bag type cylinders are respectively rotatably connected to the outside of the front and rear rotating drums through shaft seats, and the air bag type cylinder is electrically connected to the control head; the number of the upper arm support is two, and the two upper arm supports are respectively rotatably connected to the other ends of the front and rear groups of lower arm supports through bearings; the power transmission device is installed on the middle part of the top end of the insulating support seat, and the power transmission device is connected to the internal circuit of the carriage; the circuit breaker is installed on the front end of the power transmission device, and the circuit breaker is electrically connected to the power transmission device; the fixed conductive rod is installed on the outside of the circuit breaker, and the fixed conductive rod is electrically connected to the circuit breaker; the movable connecting part is arranged on the other end of the fixed conductive rod; and the movable conductive rod is arranged in the inside of the movable connecting part.

[0013] Preferably, the power receiving mechanism further comprises: a sliding groove frame, a sliding seat, a mounting bottom plate, an electrical connector, a support, a rotating seat, a micro electric push rod, a spring seat and a carbon sliding plate; the sliding groove frame is rotatably connected to the inner side of the other end of the front and rear two upper arm frames through the rotating shaft seat along the left and right direction; the sliding seat is inserted into the inner cavity of the sliding groove frame; the mounting bottom plate is mounted on the top of the sliding seat along the front and rear direction; the electrical connector is mounted at the bottom end of the rear side of the mounting bottom plate, and the electrical connector and the movable electric rod are electrically connected; the number of the support is two groups, and the number of the support in each group is two, and the two groups of supports are respectively mounted at the top of the mounting bottom plate on the left and right sides and at the front and rear ends; the number of the rotating seat is two groups, and the number of the rotating seat in each group is two, and the two groups of rotating seats are respectively rotatably mounted on the outer side top end of the two groups of supports through the bearing seat; the number of the micro electric push rod is two groups, and the number of the rotating seat in each group is two, and the two groups of micro electric push rods are respectively rotatably mounted at the outer side bottom end of the two groups of supports through the bearing seat, and the other ends of the two groups of micro electric push rods are respectively rotatably connected to the inner side of the two groups of rotating seats through the rotating shaft, and the micro electric push rod and the control vehicle head are electrically connected; the number of the spring seat is two groups, and the number of the spring seat in each group is three, and the two groups of spring seats are respectively fixedly mounted on the top end of the mounting bottom plate and located on the inner side of the left and right two supports and are obliquely mounted on the outer side of the top of the front and rear two groups of rotating seats; the number of the carbon sliding plate is two groups, and the number of the carbon sliding plate in each group is three, and the two groups of carbon sliding plates are respectively mounted on the top end of the two groups of spring seats, and the carbon sliding plate and the electrical connector are electrically connected.

[0014] Preferably, the movable connecting part comprises: a conductive seat, a conductive pin and a slot cylinder; the conductive seat is mounted at the top end of the fixed electric rod, and the conductive seat and the fixed electric rod are electrically connected; the number of the conductive pin is two, and the two conductive pins are respectively embedded in the inner side left and right ends of the conductive seat, and the conductive pin and the conductive seat are electrically connected; the slot cylinder is sleeved on the inner side of the left and right two conductive pins, the movable electric rod is inserted into the inner cavity of the slot cylinder, and the slot cylinder is respectively electrically connected with the movable electric rod and the conductive pin.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. By synchronously starting the air bag type cylinder and the micro electric push rod, the front and rear air bag type cylinders inflate and expand, the lower arm frame is driven upward by the rotating drum, the upper arm frame is lifted and pushes the sliding seat upward, in the process of lifting, the movable conductive rod, the conductive pin and other conductive components remain in a connected state, when the sliding seat rises to the height of the catenary, the pressure of the air bag type cylinder makes the lower carbon slide plate preliminarily adhere to the catenary, at the same time, the micro electric push rod on both sides is elongated, drives the two carbon slide plates on both sides through the rotating seat and the spring seat to further tightly contact the catenary, and the catenary is completed, in the state of taking power, the electric energy of the catenary is transmitted to the electric connector through the carbon slide plate, and then transmitted to the electric power transmission equipment through the movable conductive rod, the conductive pin and other conductive components and the circuit breaker, and finally supplied to the electrical system such as the traction motor, lighting and air conditioning in the vehicle.

[0017] 2. The folding door is moved backward by shortening the first electric telescopic rod to open the storage box, the first motor drives the roller seat to move to the specified position through the first screw rod assembly, the position adjusting part makes the cleaning claw reach the outside of the line, the third motor drives the two cleaning claws to rotate inward and contact the line through the third screw rod assembly, and the two second motors drive the moving seat to reciprocate through the second screw rod assembly, so as to complete the surface cleaning of the line together with the cleaning claw.

[0018] Thus, under the condition that the vehicle does not need to stop, the automatic operation of the catenary cleaning is realized, the risk of electric arc ablation is reduced, and the pantograph structure can still ensure full adhesion to the catenary in the curve section and the slope section, so as to avoid instantaneous power failure caused by mechanical movement. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the application;

[0020] Figure 2 It is Figure 1 the explosion diagram of the circuit auxiliary cleaning mechanism;

[0021] Figure 3 It is Figure 2 the enlarged view of A of

[0022] Figure 4 It is Figure 2 the enlarged view of B of

[0023] Figure 5 It is Figure 1 the explosion diagram of the pantograph mechanism;

[0024] Figure 6 It is Figure 5 the enlarged view of C of

[0025] Figure 7 It is Figure 5 the explosion diagram of the movable connecting part.

[0026] In the figure: 1, carriage, 2, control head, 3, circuit auxiliary cleaning mechanism, 31, storage box, 32, slide rail assembly, 33, folding door, 34, first electric telescopic rod, 35, groove seat, 36, roller seat, 37, first motor, 38, first screw assembly, 39, fixed seat, 310, first rotating arm, 311, second electric telescopic rod, 312, third electric telescopic rod, 313, second rotating arm, 314, fourth electric telescopic rod, 315, groove shell, 316, second screw assembly, 317, second motor, 318, moving seat, 319, groove seat, 320, third motor, 321, cleaning claw, 322, third screw assembly, 323, connecting rod, 324, connecting seat, 4, power receiving mechanism, 41, insulating support seat, 42, rotating drum, 43, lower arm support, 44, connecting arm, 45, air bag type cylinder, 46, upper arm support, 47, power transmission device, 48, circuit breaker, 49, fixed conductive rod, 410, movable conductive rod, 411, slide groove support, 412, sliding seat, 413, mounting bottom plate, 414, electrical connector, 415, support, 416, rotating seat, 417, micro electric push rod, 418, spring seat, 419, carbon slide plate, 5, movable connecting part, 51, conductive seat, 52, conductive pin, 53, insertion groove cylinder. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0028] Please refer to Figures 1-7The application provides a technical scheme: a contact type power supply traction device for urban rail transit, which comprises a carriage 1, a control head 2, a circuit auxiliary cleaning mechanism 3 and a power receiving mechanism 4. The carriage 1 serves as a basic bearing structure of the whole device, integrates a passenger cabin, an equipment cabin and a mounting base of power supply traction related components, and provides a main body frame for vehicle driving. The control head 2 is arranged at the front side of the carriage 1. The control head 2 adopts a PLC control system with a safety integration function, receives driving instructions and collects equipment state signals, controls the operation of the circuit auxiliary cleaning mechanism 3 and the power receiving mechanism 4, realizes fault diagnosis and safety protection, and is provided with a 4G module, which can transmit equipment state data to a maintenance center. The circuit auxiliary cleaning mechanism 3 is arranged at the top end of the carriage 1. The circuit auxiliary cleaning mechanism 3 can automatically clean sundries on the surface of the overhead line, avoid unstable current collection or arc ablation caused by poor contact, and ensure the reliability of subsequent power collection. The power receiving mechanism 4 is arranged at the top end of the carriage 1 and located at the rear side of the circuit auxiliary cleaning mechanism 3. The power receiving mechanism 4 can stably and slidably contact the overhead line to obtain electric energy.

[0029] As a preferred scheme, further, as shown in Figure 2 、 Figure 3 and Figure 4 , the circuit auxiliary cleaning mechanism 3 comprises a storage box 31, a slide rail assembly 32, a folding door 33 and a first electric telescopic rod 34. The storage box 31 is fixedly installed at the top of the carriage 1 and provides a protective storage space for the cleaning equipment, which can isolate rain, snow, dust and other environmental erosion. The slide rail assembly 32 is installed at the top of the carriage 1 and located at the left and right sides outside the opening. The slide rail assembly 32 provides a low-friction sliding path for the folding door 33 to ensure accurate linear movement. The folding door 33 is arranged at the inner side of the left and right slide rail assemblies 32 and adopts an upper and lower double-leaf folding type. The door frame is embedded with EPDM rubber sealing strips around. The first electric telescopic rod 34 has two, which are respectively installed at the top of the storage box 31 and located at the rear side of the left and right ends. The telescopic end of the first electric telescopic rod 34 is connected with the top end of the folding door 33. The first electric telescopic rod 34 is electrically connected with the control head 2. The first electric telescopic rod 34 is provided with a limit switch and drives the opening and closing action of the folding door 33 through its own extension and shortening. The storage box 31 is provided with a position adjusting component.

[0030] More specifically, the position adjusting component comprises: a groove seat 35, a roller seat 36, a first motor 37, a first screw assembly 38, a fixed seat 39, a first rotating arm 310, a second electric telescopic rod 311, a third electric telescopic rod 312, a second rotating arm 313, and a fourth electric telescopic rod 314; the groove seat 35 is mounted on the front side of the inner cavity of the storage box 31 along the left-right direction, the groove seat 35 provides a sliding track for the roller seat 36 and integrates the support structure of the first screw assembly 38; the roller seat 36 is mounted on the top of the inner cavity of the groove seat 35, and the bottom end of the roller seat 36 is embedded with deep groove ball bearing rollers on four corners; the first motor 37 is mounted on the left side of the outer surface of the groove seat 35, the rotating end of the first motor 37 extends into the inner cavity of the groove seat 35, the first motor 37 is electrically connected with the control vehicle head 2, the first motor 37 adopts a permanent magnet synchronous servo motor, an absolute value encoder is built-in, and the first motor 37 can accurately drive the rotation of the screw rod of the first screw assembly 38; the first screw assembly 38 is mounted in the inner cavity of the groove seat 35, the screw rod axis of the first screw assembly 38 is connected with the rotating end of the first motor 37, the screw nut of the first screw assembly 38 is connected with the roller seat 36, the first screw assembly 38 adopts a ball screw pair, and a pre-tightening nut and a shaft coupling are provided; the fixed seat 39 is fixedly mounted on the top end of the roller seat 36; one end of the first rotating arm 310 is rotatably connected to the inner side rear end of the fixed seat 39 through a rotating shaft; one end of the second electric telescopic rod 311 is rotatably connected to the inner side front end of the fixed seat 39 through a rotating shaft, the other end of the second electric telescopic rod 311 is rotatably connected to the top end of the inner side of the first rotating arm 310 through a rotating shaft, the second electric telescopic rod 311 is electrically connected with the control vehicle head 2, the second electric telescopic rod 311 is built-in with an overload protection clutch, and the second electric telescopic rod 311 can drive the pitch angle of the first rotating arm 310 by elongating or shortening itself; one end of the third electric telescopic rod 312 is rotatably connected to the upper inner side rear end of the third electric telescopic rod 312 through a rotating shaft, the third electric telescopic rod 312 is electrically connected with the control vehicle head 2, the third electric telescopic rod 312 is built-in with an overload protection clutch, and the third electric telescopic rod 312 can drive the pitch angle of the second rotating arm 313 by elongating or shortening itself; the second rotating arm 313 is rotatably connected to the other end of the inner side of the first rotating arm 310 through a rotating shaft, the other end of the third electric telescopic rod 312 is rotatably connected to the top end of the inner side rear end of the second rotating arm 313 through a rotating shaft; one end of the fourth electric telescopic rod 314 is rotatably connected to the upper inner side rear end of the second rotating arm 313 through a rotating shaft, the fourth electric telescopic rod 314 is electrically connected with the control vehicle head 2, the fourth electric telescopic rod 314 is built-in with an overload protection clutch, and the fourth electric telescopic rod 314 can drive the pitch angle of the groove body shell 315 by elongating or shortening itself; a cleaning component is arranged on the front side of the position adjusting component.

[0031] More specifically, the cleaning component includes: a groove shell 315, a second screw assembly 316, a second motor 317, a moving seat 318, a groove seat 319, a third motor 320, a cleaning claw 321, a third screw assembly 322, a connecting rod 323 and a connecting seat 324; the groove shell 315 is installed on the front side of the driving component, the inner cavity of the groove shell 315 is provided with a groove communicated with the outside on the left and right sides and the middle of the front end in the up-down direction, the groove shell 315 is rotationally connected with the outside of the front end of the second rotating arm 313 through a rotating shaft, and the other end of the fourth electric telescopic rod 314 is rotationally connected with the back side of the groove shell 315 through a rotating shaft seat; the number of the second screw assembly 316 is two, and the two second screw assemblies 316 are rotationally connected on the left and right ends of the front side of the groove shell 315 in the up-down direction through bearings respectively; the number of the second motor 317 is two, and the two second motors 317 are installed on the left and right sides of the bottom end of the front side of the groove shell 315 respectively, the rotating ends of the left and right second motors 317 are connected with the screw rod shaft centers of the bottom ends of the left and right second screw assemblies 316 respectively, the second motor 317 is electrically connected with the control car head 2, the second motor 317 adopts a small servo motor, is provided with an electromagnetic brake, and can drive the screw rod of the second screw assembly 316 to rotate accurately; the number of the moving seat 318 is two, the two moving seats 318 are respectively inserted into the grooves on the inner cavity of the front side of the groove shell 315 on the upper and lower sides, and the upper and lower moving seats 318 are connected with the screw nuts of the left and right second screw assemblies 316 respectively; the number of the groove seat 319 is two, and the two groove seats 319 are installed on the front sides of the upper and lower moving seats 318 respectively; the number of the third motor 320 is two, and the two third motors 320 are installed on the back sides of the upper and lower moving seats 318 respectively, the rotating end of the third motor 320 extends to the front side of the groove seat 319 through the moving seat 318, the third motor 320 is electrically connected with the control car head 2, the third motor 320 adopts a small servo motor, is provided with an electromagnetic brake, and can drive the screw rod of the third screw assembly 322 to rotate accurately; the number of the cleaning claw 321 is two groups, the number of each group of cleaning claws 321 is two, and the two groups of cleaning claws 321 are rotationally connected on the inner sides of the left and right ends of the upper and lower groove seats 319 through rotating shafts respectively, the cleaning claw 321 is made of insulating rubber material, the inner side of the contact surface is provided with a laser etching micro groove structure, and the scraping capacity is enhanced; the number of the third screw assembly 322 is two, and the screw rods of the two third screw assemblies 322 are installed on the front sides of the rotating ends of the upper and lower third motors 320 respectively; the number of the connecting rod 323 is two groups, the number of each group of connecting rods 323 is two, and one end of each group of connecting rods 323 is rotationally connected with the inner side of each group of cleaning claws 321 through a rotating shaft; the number of the connecting seat 324 is two, and the two connecting seats 324 are rotationally connected with the outer sides of the other ends of the two groups of connecting rods 323 through rotating shafts respectively, and the upper and lower connecting seats 324 are connected with the screw nuts in the upper and lower third screw assemblies 322 respectively.

[0032] As a preferred solution, even further, as Figure 5 and Figure 6As shown, the power receiving mechanism 4 comprises: an insulating support seat 41, a rotating drum 42, a lower arm support 43, a connecting arm 44, an air bag type cylinder 45, an upper arm support 46, a power transmission device 47, a circuit breaker 48, a fixed conductive rod 49, a movable connecting component 5, a movable conductive rod 410, a sliding groove support 411, a sliding seat 412, a mounting bottom plate 413, an electrical connector 414, a support 415, a rotating seat 416, a micro electric push rod 417, a spring seat 418, and a carbon sliding plate 419; the insulating support seat 41 is fixedly installed on the top of the carriage 1 and located behind the storage box 31; the number of the rotating drum 42 is two, and the two rotating drums 42 are respectively rotatably connected to the top end of the insulating support seat 41 through bearing seats on the left and right sides; the rotating drum 42 serves as a rotation fulcrum of the lower arm support 43 and transmits the lifting bow torque; the number of the lower arm support 43 is two groups, and the number of each group of the lower arm support 43 is two; one end of each group of the lower arm support 43 is respectively installed on the outside of the left and right sides of the front and rear rotating drums 42; the number of the connecting arm 44 is two, and the two connecting arms 44 are rotatably connected to the inner sides of the front and rear lower arm supports 43 through shaft seats at the front and rear ends; the connecting arm 44 connects the front and rear lower arm supports 43 and ensures the synchronous movement of the lower arm supports 43 on the left and right sides; the number of the air bag type cylinder 45 is two, and the two air bag type cylinders 45 are rotatably installed on the top end of the insulating support seat 41 through shaft seats on the left and right sides and at the front and rear ends; the extension ends of the two air bag type cylinders 45 are respectively rotatably connected to the outside of the front and rear rotating drums 42 through shaft seats; the air bag type cylinder 45 is electrically connected with the control vehicle head 2, and drives the rotating drum 42 to rotate by its own extension and shortening, thereby providing the power required for lifting the bow; the number of the upper arm support 46 is two, and the two upper arm supports 46 are rotatably connected to the other ends of the front and rear groups of lower arm supports 43 through bearings; the power transmission device 47 is installed on the top end of the insulating support seat 41; the power transmission device 47 is connected with the internal circuit of the carriage 1, and can transmit electric energy to the vehicle electrical system; the circuit breaker 48 is installed at the front end of the power transmission device 47 and is electrically connected with the power transmission device 47; the circuit breaker 48 performs circuit protection and can quickly cut off the circuit when overload or short circuit occurs; the fixed conductive rod 49 is installed outside the circuit breaker 48 and is electrically connected with the circuit breaker 48; the fixed conductive rod 49 connects the circuit breaker 48 with the movable connecting component 5 and conducts current; the movable connecting component 5 is arranged at the other end of the fixed conductive rod 49; the movable conductive rod 410 is arranged in the movable connecting component 5 and transmits current with the movement of the sliding groove support 411; the sliding groove support 411 is rotatably connected to the inner sides of the other ends of the front and rear upper arm supports 46 through shaft seats in the left and right directions, and can provide a sliding track for the sliding seat 412; the sliding seat 412 is inserted into the inner cavity of the sliding groove support 411; the mounting bottom plate 413 is installed on the top of the sliding seat 412 in the front and rear directions;The electric connector 414 is installed at the bottom end of the mounting base plate 413, and the electric connector 414 is electrically connected with the movable electrically-conductive rod 410, and the electric connector 414 collects the current of the carbon slide plate 419 and transmits to the movable electrically-conductive rod 410; the number of the support 415 is two groups, and the number of each group of the support 415 is two, and the two groups of the support 415 are respectively installed at the top end of the mounting base plate 413 and the front and rear ends of the left and right sides; the number of the rotating seat 416 is two groups, and the number of each group of the rotating seat 416 is two, and the two groups of the rotating seat 416 are respectively rotatably installed at the outer side top end of the two groups of the support 415 through the bearing seat; the number of the micro electric push rod 417 is two groups, and the number of each group of the rotating seat 416 is two, and the two groups of the micro electric push rod 417 are respectively rotatably installed at the outer side bottom end of the two groups of the support 415 through the bearing seat, and the other end of the two groups of the micro electric push rod 417 is respectively rotatably connected with the inner side of the two groups of the rotating seat 416 through the rotating shaft, the micro electric push rod 417 is electrically connected with the control vehicle head 2, and the micro electric push rod 417 accurately controls the angle of the rotating seat 416 by elongation and shortening itself; the number of the spring seat 418 is two groups, and the number of each group of the spring seat 418 is three, and the two groups of the spring seat 418 are respectively fixedly installed at the top end of the mounting base plate 413 and located at the inner side of the left and right two supports 415, and are installed on the outer side above the front and rear two groups of the rotating seat 416 and are inclined inward, and the spring seat 418 provides the contact pressure of the carbon slide plate and the contact net; the number of the carbon slide plate 419 is two groups, and the number of each group of the carbon slide plate 419 is three, and the two groups of the carbon slide plate 419 are respectively installed at the top end of the two groups of the spring seat 418, the carbon slide plate 419 is electrically connected with the electric connector 414, and the carbon slide plate 419 directly contacts with the external contact net wire to obtain electric energy.

[0033] As a preferred solution, further, as shown in Figure 7 The movable connecting component 5 includes: an electrically-conductive seat 51, an electrically-conductive pin 52 and a slot cylinder 53; the electrically-conductive seat 51 is installed at the top end of the fixed electrically-conductive rod 49, the electrically-conductive seat 51 is electrically connected with the fixed electrically-conductive rod 49, the electrically-conductive seat 51 is made of forged copper alloy, which is the connecting interface of the fixed electrically-conductive rod 49 and the electrically-conductive pin 52, and provides stable electrical connection and mechanical support; the number of the electrically-conductive pin 52 is two, and the two electrically-conductive pins 52 are respectively embedded at the inner side left and right ends of the electrically-conductive seat 51, the electrically-conductive pin 52 is electrically connected with the electrically-conductive seat 51, and the electrically-conductive pin 52 is the core electrically-conductive element of the movable joint, which allows angular deviation while maintaining low resistance connection; the slot cylinder 53 is sleeved on the inner side outside of the left and right two electrically-conductive pins 52, the movable electrically-conductive rod 410 is inserted into the inner cavity of the slot cylinder 53, and the slot cylinder 53 is electrically connected with the movable electrically-conductive rod 410 and the electrically-conductive pin 52, respectively, and the slot cylinder 53 is the transition connecting component of the electrically-conductive pin 52 and the movable electrically-conductive rod 410, which provides sliding electrically-conductive function.

[0034] The detailed connecting means is a known technology in the art, and the working principle and process are mainly introduced as follows:

[0035] Step 1: The driver starts the lifting bow procedure inside the control head 2, and the control head 2 program controls the air bag cylinder 45 and the micro electric push rod 417 to start, the air bags in the air bag cylinder 45 on both sides expand, pull the front and rear rotating drums 42 to rotate inward, the front and rear rotating drums 42 respectively drive the left and right lower arm supports 43 to rotate upward around the axis of the rotating drum 42, at the same time, the upper arm support 46 is lifted synchronously under the drive of the lower arm support 43, the sliding seat 412 is pushed up, the sliding seat 412 is driven to move upward at one end of the movable electric rod 410, and the other end of the movable electric rod 410 is moved upward in the inner cavity of the electric pin 52, and the electric pin 52 is driven to rotate around the outside of the slot cylinder 53, the electric state between the movable electric rod 410, the electric pin 52, the slot cylinder 53, the electric seat 51 and the fixed electric rod 49 is maintained, when the sliding seat 412 rises to the height of the catenary, the upward pressure provided by the air bag cylinder 45 makes the lower carbon slide plate 419 tightly contact with the catenary wire, the micro electric push rod 417 on both sides is elongated to drive the corresponding upper rotating seat 416 to rotate inward on the top of the support 415, and the two carbon slide plates 419 on both sides are driven to tightly contact with the catenary wire under the cooperation of the spring seat 418, and then the lifting bow action is completed, at this time, the power supply mechanism 4 enters the power taking state, the electric energy of the catenary is transmitted into the inside of the electric connector 414 through the carbon slide plate 419, the electric power of the multiple carbon slide plates 419 above the installation bottom plate 413 is collected by the electric connector 414, and is transmitted to the electric power transmission device 47 through the movable electric rod 410, the electric pin 52, the slot cylinder 53, the electric seat 51, the fixed electric rod 49 and the electric components in the circuit breaker 48, and the electric power transmission device 47 transmits the electric power to the electric system in the vehicle to supply power to the traction motor, lighting and air conditioning equipment in the vehicle interior;

[0036] Step 2: When the external line needs to be cleaned, the driver controls the vehicle head 2 to start the preset program, and controls the first electric telescopic rod 34, the first motor 37, the second electric telescopic rod 311, the third electric telescopic rod 312, the fourth electric telescopic rod 314, the third motor 320 and the second motor 317 to start. The first electric telescopic rod 34 shortens to drive the folding door 33 to move backward along the inner side of the slide rail assembly 32 to open the storage box 31. The first motor 37 drives the screw rod in the first screw assembly 38 to rotate, so that the screw nut in the first screw assembly 38 drives the roller seat 36 to move left or right along the inner side of the groove seat 35 to the specified position. The second electric telescopic rod 311 extends or shortens to drive the first rotating arm 310 to rotate upward or downward in the fixed seat 39 to the specified angle position. The third electric telescopic rod 312 extends or shortens to drive the second rotating arm 313 to rotate upward or downward in the first rotating arm 310 to the specified angle position. The fourth electric telescopic rod 314 extends or shortens to drive the groove shell 315 to tilt forward or backward in the second rotating arm 313 to the specified angle, so that the left and right cleaning claws 321 move to the specified position outside the external power transmission line. The third motor 320 drives the screw rod in the third screw assembly 322 to rotate, so that the screw nut in the third screw assembly 322 drives the connecting seat 324 to move, so that the connecting seat 324 drives the connecting rods 323 on both sides to drive the left and right cleaning claws 321 to rotate inward synchronously and contact the external line. The two second motors 317 respectively drive the screw rod in the second screw assembly 316 at the corresponding position to rotate, so that the screw nut in the second screw assembly 316 at the corresponding position drives the moving seat 318 at the corresponding position to reciprocate, thereby cleaning the surface of the external line with the cooperation of the left and right cleaning claws 321.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A contact power supply traction device for urban rail transit, characterized in that, The utility model relates to a kind of electric vehicle, including: Carriage (1); Control car head (2) is arranged at the front side of the carriage (1); Circuit auxiliary cleaning mechanism (3) is arranged at the top of the carriage (1), the circuit auxiliary cleaning mechanism (3) can automatically clean the sundries on the surface of overhead line, avoid unstable current collection or arc ablation caused by poor contact, guarantee subsequent power taking reliability; Pantograph (4) is arranged at the top of the carriage (1) and is located at the rear side of circuit auxiliary cleaning mechanism (3), the pantograph (4) can stably contact with overhead line and obtain electric energy; The circuit auxiliary cleaning mechanism (3) includes: Storage box (31) is fixedly installed at the top of the carriage (1); Slide rail assembly (32) is installed at the top of the storage box (31) and is located at the left and right sides outside the opening; Folding door (33) is arranged at the inner side of the left and right slide rail assemblies (32); The first electric telescopic rod (34) is two, the first electric telescopic rod (34) is respectively installed at the top of the left and right ends of the storage box (31), the telescopic end of the first electric telescopic rod (34) is connected with the top end of the folding door (33), and the first electric telescopic rod (34) is electrically connected with the control car head (2); The storage box (31) is provided with a position adjusting component, and the position adjusting component is provided with a cleaning component at the front side; The pantograph (4) includes: Insulating support seat (41) is fixedly installed at the top of the carriage (1) and is located at the rear of the storage box (31); Rotary drum (42) is two, the rotary drum (42) is respectively rotatably connected at the top of the front and rear sides of the insulating support seat (41) through bearing seat along left and right directions; Lower arm frame (43) is two groups, each group of lower arm frame (43) is two, and one end of the two groups of lower arm frame (43) is respectively installed at the left and right sides outside the front and rear rotary drums (42); Connecting arm (44) is two, and the front and rear ends of the connecting arm (44) are respectively rotatably connected at the inner side of the front and rear lower arm frames (43) through rotary shaft seat; Air bag type cylinder (45) is two, the air bag type cylinder (45) is respectively rotatably installed at the top of the left and right sides of the insulating support seat (41) through rotary shaft seat, the telescopic end of the air bag type cylinder (45) is respectively rotatably connected with the outside of the front and rear rotary drums (42) through rotary shaft seat, and the air bag type cylinder (45) is electrically connected with the control car head (2); Upper arm frame (46) is two, the upper arm frame (46) is rotatably connected at the other end of the front and rear groups of lower arm frames (43) through bearing.

2. The contact power supply traction device for urban rail transit according to claim 1, characterized in that: The cleaning component includes: Groove shell (315) is installed at the front side of the position adjusting component, and the inner cavity of the groove shell (315) is provided with groove communicated with the outside at the left and right sides of the front end and the middle along the up and down directions. Second screw rod assemblies (316), the number of second screw rod assemblies (316) is two, two second screw rod assemblies (316) are rotatably connected to the left and right ends of the front side of the groove body shell (315) in the up-down direction respectively; Second motors (317), the number of second motors (317) is two, two second motors (317) are installed on the left and right sides of the bottom end of the front side of the groove body shell (315), and the rotating ends of the left and right second motors (317) are connected with the screw rod shaft bottoms of the left and right second screw rod assemblies (316) respectively, and the second motors (317) are electrically connected with the control vehicle head (2); Moving seats (318), the number of moving seats (318) is two, two moving seats (318) are respectively inserted into the inner cavities of the front side of the groove body shell (315) on the upper and lower sides, and the moving seats (318) are connected with the screw nuts of the left and right second screw rod assemblies (316) respectively; Groove body seats (319), the number of groove body seats (319) is two, two groove body seats (319) are installed on the front side of the upper and lower moving seats (318); Third motors (320), the number of third motors (320) is two, two third motors (320) are installed on the rear side of the upper and lower moving seats (318), the rotating ends of the third motors (320) pass through the moving seats (318) and extend to the front side of the groove body seats (319), and the third motors (320) are electrically connected with the control vehicle head (2); Cleaning claws (321), the number of cleaning claws (321) is two groups, the number of cleaning claws (321) in each group is two, and the cleaning claws (321) in the two groups are rotatably connected to the inner sides of the left and right ends of the upper and lower groove body seats (319) through rotating shafts; Third screw rod assemblies (322), the number of third screw rod assemblies (322) is two, and the screw rods of the two third screw rod assemblies (322) are installed on the front side of the rotating ends of the upper and lower third motors (320); Connecting rods (323), the number of connecting rods (323) is two groups, the number of connecting rods (323) in each group is two, and one end of the connecting rods (323) in the two groups is rotatably connected to the inner sides of the upper and lower cleaning claws (321) through rotating shafts; Connecting seats (324), the number of connecting seats (324) is two, two connecting seats (324) are rotatably connected to the outer sides of the other ends of the two groups of connecting rods (323) through rotating shafts, and the connecting seats (324) are connected with the screw nuts in the upper and lower third screw rod assemblies (322) respectively.

3. The contact power supply traction device for urban rail transit according to claim 2, characterized in that: The power receiving mechanism (4) further comprises: A power transmission device (47) is installed at the top middle part of the insulating support seat (41), and the power transmission device (47) is connected with the internal circuit of the carriage (1); A circuit breaker (48) is installed at the front end of the power transmission device (47), and the circuit breaker (48) is electrically connected with the power transmission device (47); A fixed conductive rod (49) is installed outside the circuit breaker (48), and the fixed conductive rod (49) is electrically connected with the circuit breaker (48); A movable connecting part (5) is arranged at the other end of the fixed conductive rod (49); A movable conductive rod (410) is arranged inside the movable connecting part (5).

4. The contact power supply traction device for urban rail transit according to claim 3, characterized in that: The power receiving mechanism (4) further comprises: A sliding groove frame (411) is rotatably connected to the inner side of the other end of the front and rear two upper arm frames (46) through a rotating shaft seat in the left-right direction; A sliding seat (412) is inserted into the inner cavity of the sliding groove frame (411); An installation bottom plate (413) is installed at the top of the sliding seat (412) in the front-rear direction; An electric connector (414) is installed at the bottom end of the rear side of the installation bottom plate (413), and the electric connector (414) is electrically connected with the movable conductive rod (410); A support (415) has two groups, each group has two supports (415), and the two groups of supports (415) are respectively installed at the top of the installation bottom plate (413) on the left and right sides of the front and rear ends; A rotating seat (416) has two groups, each group has two rotating seats (416), and the two groups of rotating seats (416) are respectively rotatably installed at the outer side top end of the two groups of supports (415) through a bearing seat; A miniature electric push rod (417) has two groups, each group has two miniature electric push rods (417), and the two groups of miniature electric push rods (417) are respectively rotatably installed at the outer side bottom end of the two groups of supports (415) through a bearing seat, and the other ends of the two groups of miniature electric push rods (417) are respectively rotatably connected with the inner side of the two groups of rotating seats (416) through a rotating shaft, and the miniature electric push rod (417) is electrically connected with the control vehicle head (2); A spring seat (418) has two groups, each group has three spring seats (418), and the two groups of spring seats (418) are respectively fixedly installed on the top end of the installation bottom plate (413) and located inside the left and right two supports (415), and are installed on the outer side above of the front and rear two groups of rotating seats (416) and are inclined inwardly; A carbon slide plate (419) has two groups, each group has three carbon slide plates (419), and the two groups of carbon slide plates (419) are respectively installed at the top end of the two groups of spring seats (418), and the carbon slide plate (419) is electrically connected with the electric connector (414).

5. The contact power supply traction device for urban rail transit according to claim 4, characterized in that: The movable connecting part (5) comprises: A conductive seat (51) is installed at the top end of the fixed conductive rod (49), and the conductive seat (51) is electrically connected with the fixed conductive rod (49); Conductive pin (52), the number of the conductive pin (52) is two, two said conductive pin (52) respectively inlaid in the inner side left and right two ends of the conductive seat (51), the conductive pin (52) and the conductive seat (51) are electrically connected;The slot barrel (53) is sleeved on the inner side of the left and right two conductive pins (52), the movable conductive rod (410) is inserted into the inner cavity of the slot barrel (53), and the slot barrel (53) is respectively connected with the movable conductive rod (410) and the conductive pin (52).

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