CN219648202U - Automatic cleaning device for oil-cooled radiating fins of rail transit motor car - Google Patents

Abstract

The utility model discloses an automatic cleaning device for an oil cooling radiating fin of a rail transit motor car, which comprises a telescopic spray head assembly, a vertical moving assembly, a horizontal moving assembly, a trolley and a control assembly. The horizontal movement assembly comprises a displacement driving mechanism, an upper moving plate, a middle moving plate and a lower fixed plate which are sequentially connected in a sliding mode, wherein the displacement driving mechanism comprises a ball screw module, a gear rack displacement multiplication module and a chain sprocket driving module, and the three components are matched to realize the horizontal displacement of the vertical movement assembly to increase the range, so that the horizontal cleaning range is greatly increased. The vertical moving assembly can drive the telescopic spray head assembly to move in the vertical direction, and the telescopic spray head assembly adjusts the distance between the swing spray head unit and the radiating fins through a telescopic function, so that the spray cleaning distance is consistent. The control assembly controls and adjusts the cleaning distance and the cleaning range, so that the swing nozzle unit can perform multi-angle flushing on the fins of the oil-cooled radiator, the cleaning efficiency is improved, and the damage of high-pressure water impact to the fins is avoided.

Description

Automatic cleaning device for oil-cooled radiating fins of rail transit motor car

Technical Field

The embodiment of the utility model belongs to the technical field of automatic cleaning devices, and particularly relates to an automatic cleaning device for an oil cooling radiating fin of a rail transit motor car.

Background

After the rail transit motor car runs for a certain period, dust and grass blade attachments are adhered to the surfaces and the grooves of the fins of the oil-cooled radiator, ventilation is directly affected, and cooling efficiency is reduced. Therefore, the surface of the radiating fin needs to be thoroughly cleaned after the oil-cooled radiator cover plate is detached during operation and maintenance, and the main cleaning mode at present is manual cleaning, namely, operators hold the spray gun to spray the radiating fin unordered.

The prior art has several disadvantages: (1) The cleaning quality of the manual spray gun flushing depends on the responsibility of an operator, and the cleaning consistency is not guaranteed; (2) high labor intensity and low cleaning efficiency; (3) The manual spray washing cannot completely avoid damage to the fins caused by high-pressure water impact because the distance between the spray head and the fins cannot be guaranteed to be consistent.

Disclosure of Invention

In order to solve the above defects or improvement demands of the prior art, the utility model provides an automatic cleaning device for an oil cooling radiating fin of a rail transit motor car, which aims to solve the problems.

In order to achieve the above purpose, the utility model provides an automatic cleaning device for an oil cooling radiating fin of a rail transit motor car, which comprises a trolley, a cleaning device and a cleaning device, wherein the trolley comprises a car body and a walking assembly; the horizontal moving assembly is arranged at the top of the trolley body and comprises a displacement driving mechanism, an upper moving plate, a middle moving plate and a lower fixed plate which are sequentially connected in a sliding manner, and the lower fixed plate is fixedly arranged at the top of the trolley; the vertical moving assembly is arranged at the top of the upper moving plate in a sliding manner and comprises a vertical supporting bracket, a first ball screw and a second driving motor; the telescopic spray head assembly is arranged on the side edge of the vertical moving assembly and comprises a scissors telescopic arm, a row of spray heads arranged at the front end of the scissors telescopic arm, and a telescopic driving mechanism arranged on the scissors telescopic arm; a control assembly disposed on the vehicle body; the displacement driving mechanism comprises a ball screw module arranged on the lower fixed plate, a gear rack displacement multiplication module arranged on the middle moving plate and a chain sprocket driving module arranged on the upper moving plate; the chain and chain wheel driving module comprises chain wheels which are respectively arranged at two ends of the upper movable plate in a rotating way, two groups of chains which are respectively meshed with the two groups of chain wheels, and chain end fixing frames which are respectively arranged at the bottom of the vertical support bracket and on the middle movable plate, wherein the two groups of chains are respectively fixedly connected with the chain end fixing frames to form a closed loop;

the control assembly controls the horizontal moving assembly to drive the vertical moving assembly to linearly displace along the horizontal direction, controls the vertical moving assembly to drive the telescopic driving mechanism to linearly displace along the vertical direction, and vertically and horizontally reciprocates to form a rectangular closed cleaning range to finish automatic cleaning work of the cleaning surface.

Further, the ball screw module comprises a second ball screw which is rotationally arranged at the top of the fixed plate through a rotating frame, a servo motor which is arranged in parallel with the second ball screw, one end of the second ball screw and a motor shaft of the servo motor are respectively provided with a synchronous wheel, and the two groups of synchronous wheels are connected and driven through a synchronous belt; and a second screw slider is further arranged on the second ball screw and fixedly connected with the middle moving plate.

Further, the gear-rack displacement multiplication module comprises a linkage gear which is rotationally arranged on the middle moving plate, racks which are respectively and fixedly arranged on the bottom of the upper moving plate and the lower fixed plate, and the top and the bottom of the linkage gear are respectively meshed with the two groups of racks.

Further, the swing nozzle unit comprises a row nozzle, a first fixing frame, a rotary joint, a bearing with a seat, a first driving motor, a crank wheel and a swing rod; the first fixing frame is fixedly connected with the front end of the scissor telescopic arm; the rotary joint and the bearing with the seat are fixedly connected with the first fixing frame respectively; the upper end and the lower end of the row of spray heads are respectively and rotatably connected with a rotary joint and a bearing with a seat; the first driving motor is fixedly arranged in the first fixing frame, and a motor shaft of the first driving motor is fixedly connected with the crank wheel; the rocker arranged on the crank wheel is limited in a limiting groove arranged on the swinging rod in a sliding way; one end of the swinging rod is fixedly connected with the row of spray heads.

Further, the bottom of the vertical support bracket is matched with the top of the horizontal movement assembly through a slide block guide rail in a sliding manner, the two ends of the first ball screw are rotationally arranged on the vertical support bracket, the top end of the first ball screw is fixedly connected with a motor shaft of a second driving motor arranged on the top of the vertical support bracket, and a first screw slide block is arranged on the lever body of the first ball screw; the first lead screw sliding block is fixedly connected with the second fixing frame.

Further, the car body comprises a section frame and a metal plate door, wherein a storage battery pack, a liquid storage tank and a cleaning pump set are arranged in the section frame, the storage battery is used for providing electric energy for other functional components, and the cleaning pump set is used for pumping cleaning liquid in the liquid storage tank into the joint-row spray head so as to flush the fins of the oil-cooled radiator.

Further, the control assembly comprises a control panel and a control module which are arranged on the vehicle body, and the control module can control related functional assemblies to realize a flushing function by inputting instructions through the control panel.

Further, the manual spray gun is arranged at the top of the vehicle body, and the manual valve is arranged at the side edge of the vehicle body.

In general, the above technical solutions conceived by the present utility model, compared with the prior art, enable the following beneficial effects to be obtained:

(1) According to the automatic cleaning device for the oil-cooled radiating fins of the rail transit motor car, provided by the utility model, the distance between the row of spray heads and the radiating fins is adjusted and maintained through the telescopic spray head assembly, so that the consistency of spray cleaning distance is ensured, the cleaning efficiency is improved, and the damage of high-pressure water impact to the fins is avoided.

(2) According to the automatic cleaning device for the oil-cooled radiating fins of the rail transit motor car, provided by the utility model, the height of the row of spray heads is adjusted through the vertical moving assembly, so that the row of spray heads are aligned with the fins; the row of spray heads are horizontally displaced through the horizontal moving assembly; through vertical moving assembly and horizontal migration subassembly cooperation and, form the closed cleaning scope of a rectangle, accomplish the self-cleaning work to the cleaning surface, improved cleaning efficiency.

(3) According to the automatic cleaning device for the oil cooling radiating fins of the rail transit motor car, the horizontal moving assembly is provided with the displacement driving mechanism, and the ball screw module, the gear rack displacement multiplication module and the chain sprocket driving module are adopted under the driving of the servo motor, so that the power conduction of the centering moving plate, the upper moving plate and the vertical supporting bracket is realized, the three are synchronously linked to perform linear displacement, the horizontal working range of the telescopic nozzle assembly is enlarged, the trolley is prevented from being moved back and forth by workers, and the labor intensity of the workers is reduced.

(4) According to the automatic cleaning device for the oil-cooled radiating fins of the rail transit motor car, the row-connected spray heads have a horizontal swinging function, so that the spraying and sweeping effect of a manual spray gun on the surface to be cleaned is simulated, and the cleaning efficiency and quality are effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of an automatic cleaning device for oil cooling fins of a rail transit vehicle according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a swing nozzle unit in an embodiment of the present utility model;

FIG. 3 is a top view of a swing nozzle unit according to an embodiment of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of the portion A according to the embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a horizontal movement assembly in accordance with an embodiment of the present utility model;

fig. 6 is a side view of a horizontal movement assembly in accordance with an embodiment of the present utility model.

Like reference numerals denote like technical features throughout the drawings, in particular:

1-a telescopic showerhead assembly comprising: 110-swinging nozzle units, 111-row nozzles, 112-first fixing frames, 113-rotary joints, 114-bearing with seats, 115-first driving motors, 116-crank wheels, 117-swinging rods, 120-scissor telescopic arms and 130-telescopic driving mechanisms;

2-a vertical movement assembly comprising; 210-a vertical support bracket, 220-a first ball screw, 230-a second driving motor;

a 3-horizontal movement assembly comprising: 310-upper moving plate, 320-middle moving plate, 330-lower fixed plate, 340-displacement driving mechanism, 341-servo motor, 342-second ball screw, 343-linkage gear, 344-rack, 345-chain, 346-sprocket, 347-chain end fixing frame;

a 4-cart comprising: 410-a vehicle body, 420-a walking assembly;

5-a control assembly;

6-manual spray gun;

7-a manual valve;

8-wire binding belt.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1-4, the utility model discloses an automatic cleaning device for an oil cooling radiating fin of a rail transit motor car, which comprises a telescopic spray head assembly 1, a vertical moving assembly 2, a horizontal moving assembly 3, a trolley 4 and a control assembly 5. The horizontal moving assembly 3 comprises a displacement driving mechanism 340, and an upper moving plate 310, a middle moving plate 320 and a lower fixed plate 330 which are sequentially connected in a sliding manner, wherein the lower fixed plate 330 is fixedly arranged at the top of the trolley 4, and the top of the upper moving plate 310 is provided with a vertical moving assembly 2 in a sliding manner; the displacement driving mechanism 340 comprises a ball screw module, a gear-rack displacement multiplication module and a chain sprocket driving module, and the three modules are matched to realize the range increase of the horizontal displacement of the vertical moving assembly 2, so that the horizontal cleaning range is greatly increased. The vertical moving assembly 2 can drive the telescopic nozzle assembly 1 to move in the vertical direction, and the telescopic nozzle assembly 1 adjusts the distance between the swing nozzle unit 110 and the radiating fins through a telescopic function, so that the spray cleaning distance is consistent. The control assembly 5 is arranged on the trolley 4, controls the telescopic spray head assembly 1, the vertical moving assembly 2 and the horizontal moving assembly 3 to adjust the cleaning distance and the cleaning range, and controls the output pressure value of the cleaning pump set, so that the swing spray head unit 110 washes the fins of the oil-cooled radiator, the consistency of the spraying distance is ensured, the cleaning efficiency is improved, and the damage of high-pressure water impact to the fins is avoided.

As shown in fig. 1, the cart 4 includes a vehicle body 410 and a traveling assembly 420. The vehicle body 410 comprises a section frame and a metal plate door, wherein a storage battery pack, a liquid storage tank and a cleaning pump set are arranged in the section frame, the storage battery pack provides electric energy for other functional components, and the cleaning pump set pumps cleaning liquid in the liquid storage tank into the swing nozzle unit 110, so that the oil cooling radiator fins are washed. Preferably, the vehicle body 410 is further provided with an external electric interface and a cleaning fluid input interface, and the continuous cleaning function of the automatic cleaning device is realized by connecting a power supply and a cleaning fluid. The traveling assembly 420 includes wheels disposed at the bottom of the vehicle body 410, and the wheels are provided with three or more wheels, wherein at least one wheel is a power wheel, and the wheels have braking and steering functions.

The telescopic nozzle assembly 1 is disposed at a side of the vertical moving assembly 2, and comprises a swing nozzle unit 110, a scissor telescopic arm 120 and a telescopic driving mechanism 130. The swinging spray head unit 110 is arranged at the front end of the scissor telescopic arm 120 and comprises a row of spray heads 111 formed by a plurality of spray heads, and the row of spray heads 111 are connected with a cleaning pump set by adopting a pipeline; by swinging the head unit 110, the cleaning range can be increased, and the cleaning efficiency can be improved. The telescopic driving mechanism 130 comprises an electric cylinder arranged on the scissor telescopic arm 120 and is in communication connection with the control assembly 5, the electric cylinder drives the scissor telescopic arm 120 to extend to a designated position under the control of the control assembly 5, the distance between the swing nozzle unit 110 and the fins is ensured to be consistent, and after a cleaning task is completed, the electric cylinder is controlled to drive the scissor telescopic arm 120 to retract so as to facilitate the transportation of the trolley 4. The rear end of the scissor telescopic arm 120 is fixedly arranged on a second fixing frame, and the second fixing frame is matched with the sliding block guide rail to be arranged on the vertical moving assembly 2 in a sliding manner, so that the second fixing frame can drive the telescopic nozzle assembly 1 to move in the vertical direction along the guide rail arranged on the vertical moving assembly 2. The pipe and the wire group can be restrained by the wire belt 8, so that interference with other functional components is avoided.

Further, as shown in fig. 2-3, in order to perform multi-angle washing on the fins and improve the washing efficiency, the swing nozzle unit 110 drives the row nozzle 111 to swing repeatedly horizontally by being provided with a crank-link mechanism, so that the sprayed high-pressure water washes each part of the fins, thereby avoiding that the washing dead angle cannot be washed, and improving the washing quality while passing through the washing efficiency.

The swing nozzle unit 110 includes a row nozzle 111, a first fixing frame 112, a rotary joint 113, a seat bearing 114, a first driving motor 115, a crank wheel 116, and a swing lever 117. The first fixing frame 112 is fixedly connected with the front end of the scissors telescopic arm 120; the rotary joint 113 and the bearing 114 with the seat are respectively fixedly connected with the first fixing frame 112; the upper end and the lower end of the row spray head 111 are respectively and rotatably connected with a rotary joint 113 and a bearing 114 with a seat; the first driving motor 115 is fixedly arranged in the first fixing frame 112, and a motor shaft of the first driving motor is fixedly connected with the crank wheel 116; the rocker arranged on the crank wheel 116 is limited in a limiting groove arranged on the swinging rod 117 in a sliding way; one end of the swinging rod 117 is fixedly connected with the row spray head 111. The crank wheel 116 is driven to rotate by the first driving motor 11, the rocker pushes the swinging rod 117 to swing back and forth within a certain angle range, so that the row of spray heads 111 are driven to swing horizontally and repeatedly, the swinging angle range can reach 0-52 degrees, the 'spraying and sweeping' effect of a simulated person hand-held spray gun on the surface to be cleaned is achieved, and the cleaning efficiency and quality are effectively improved.

The vertical moving assembly 2 includes a vertical support bracket 210, a first ball screw 220, and a second driving motor 230. The bottom of the vertical support bracket 210 is slidably arranged at the top of the horizontal moving assembly 3 through the matching of the slide block guide rail, the two ends of the first ball screw 220 are rotatably arranged on the vertical support bracket 210, the top end of the first ball screw 220 is fixedly connected with a motor shaft of a second driving motor 230 arranged at the top of the vertical support bracket 210, and a first screw slide block is arranged on the lever body of the first ball screw; the screw rod sliding block is fixedly connected with the second fixing frame; the second driving motor 230 is in communication connection with the control assembly 5, and under the control of the control assembly 5, the second driving motor 230 drives the first ball screw 220 to rotate, so that the second fixing frame connected with the first screw slider is displaced along the vertical direction, and the horizontal height of the telescopic nozzle assembly 1 is adjusted, so that the swing nozzle unit 110 is aligned to the fins.

As shown in fig. 4-6, the horizontal moving assembly 3 includes an upper moving plate 310, a middle moving plate 320, a lower fixed plate 330 and a displacement driving mechanism 340 that are sequentially slidably connected, wherein the lower fixed plate 330 is fixed on the top of the vehicle body 410 through bolts, the bottom of the middle moving plate 320 is slidably connected with the lower fixed plate 330 through a slider rail, and the bottom of the upper moving plate 310 is slidably connected with the middle moving plate 320 through a slider rail.

The displacement driving mechanism 340 comprises a ball screw module, a gear rack displacement multiplication module and a chain sprocket driving module.

As shown in fig. 4, the ball screw module is disposed at the top of the lower fixed plate 330, and includes a second ball screw 342 rotatably disposed at the top of the fixed plate 330 by a turret, a servo motor 341 parallel to the second ball screw 342, and synchronizing wheels disposed at one end of the second ball screw 342 and on a motor shaft of the servo motor 341, where the two sets of synchronizing wheels are connected and driven by a synchronous belt. The second ball screw 342 is further provided with a second screw slider, which is fixedly connected with the middle moving plate 320. The servo motor 341 drives the second ball screw 342 to rotate under the control of the control assembly 5, so that the second screw slider drives the middle moving plate 320 to horizontally and linearly move on the lower fixed plate 330.

The rack and pinion displacement multiplication module comprises a linkage gear 343 rotatably arranged on the middle moving plate 320 through a linkage gear frame, racks 344 respectively fixedly arranged at the bottom of the upper moving plate 310 and the lower fixed plate 330, and the top and the bottom of the linkage gear 343 are respectively meshed with the two groups of racks 344. When the middle moving plate 320 is linearly displaced, the linkage gear 343 is driven to rotate, and the rack 344 arranged on the lower fixed plate 330 is kept fixed, so that the linkage gear 343 drives the upper moving plate 310 to displace, the upper moving plate 310 moves at a speed which is one time that of the displacement of the middle moving plate 320, the displacement distance is one time that of the displacement of the middle moving plate 320, and the displacement stroke increasing effect is realized.

As shown in fig. 5-6, the chain sprocket driving module includes sprockets 346 rotatably disposed at two ends of the upper moving plate 310, two sets of chains 315 meshed with the two sets of sprockets 346, and chain end fixing frames 347 disposed at the bottom of the vertical support frame 210 and on the middle moving plate 320, wherein the two sets of chains 315 are fixedly connected with the chain end fixing frames 347 to form a closed loop. When the rack and pinion displacement multiplication module drives the upper moving plate 310 to move at a speed which is one time that of the middle moving plate 320, a differential speed is formed between the upper moving plate 310 and the middle moving plate 320, and as one end of the chain 315 is fixedly connected with the middle moving plate 320, the chain wheel 346 is driven to rotate under the action of a tensile force, so that the vertical support bracket 210 fixedly connected with the other end of the chain 315 performs linear sliding displacement along the upper moving plate 310.

The horizontal moving assembly 3 of the utility model is provided with the displacement driving mechanism 340, and driven by the servo motor 341, adopts the ball screw module, the gear rack displacement multiplication module and the chain sprocket driving module to realize the power transmission of the centering moving plate 320, the upper moving plate 310 and the vertical support bracket 210 respectively, so that the three are synchronously linked to carry out linear displacement, thereby enlarging the horizontal working range of the telescopic nozzle assembly 1, realizing the effect that the working displacement distance of the telescopic nozzle assembly 1 is double the width of the trolley 4 on the premise of not increasing the width of the trolley 4, avoiding the trolley 4 from being moved back and forth by staff, and reducing the labor intensity of the staff.

The control module 5 includes a control panel and a control module, which are disposed on the vehicle body 410, and the control module can control related functional components to implement a flushing function by inputting instructions through the control panel.

Preferably, the top of the trolley 4 is further provided with a manual spray gun 6 which is connected with a cleaning pump set pipeline, the automatic cleaning mode is switched into manual cleaning through a manual valve 7 arranged on the side edge of the trolley body 410, and a worker can hold the manual spray gun 6 for cleaning, and the manual spray gun can be used as a standby for carrying out repair cleaning on stubborn dirt and dead corners on fins.

The utility model also provides an automatic cleaning method of the oil cooling radiating fin of the rail transit motor car, comprising the following steps:

s100: the trolley 4 is moved and braked to be positioned to be opposite to the surface to be cleaned, so that the distance between the swing nozzle unit 110 and the surface to be cleaned is 200-300 mm;

s200: starting a cleaning pump set, and swinging the nozzle unit 110 to spray a water beam in a vertical fan shape;

s300: the crank wheel 116 and the swinging rod 117 drive the row spray head 111 to rotate through the driving of the first driving motor 115, so that the swinging spray head unit 110 swings horizontally and repeatedly, the fins are washed by high-pressure water beams at multiple angles, and the cleaning effect on the cleaning surface is achieved;

s400: through program setting of the control assembly 5, vertical and horizontal reciprocating movement of the swinging nozzle unit 110 is realized under the action of the vertical moving assembly 2 and the horizontal moving assembly 3, a rectangular closed cleaning range is formed, and automatic cleaning of the cleaning surface is completed;

s500: the automatic cleaning mode is switched to manual cleaning through the manual valve 7, and the handheld manual spray gun (500) is used for cleaning stubborn dirt and dead corners.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (9)

1. An oil cooling fin self-cleaning device of a rail transit motor car, which is characterized by comprising:

a trolley (4) comprising a body (410) and a travelling assembly (420);

the horizontal moving assembly (3) is arranged at the top of the car body (410) and comprises a displacement driving mechanism (340), an upper moving plate (310), a middle moving plate (320) and a lower fixed plate (330) which are sequentially connected in a sliding manner, and the lower fixed plate (330) is fixedly arranged at the top of the trolley (4);

the vertical moving assembly (2) is arranged at the top of the upper moving plate (310) in a sliding manner and comprises a vertical support bracket (210), a first ball screw (220) and a second driving motor (230);

the telescopic nozzle assembly (1) is arranged on the side edge of the vertical moving assembly (2) and comprises a scissor telescopic arm (120), a swinging nozzle unit (110) arranged at the front end of the scissor telescopic arm (120) and a telescopic driving mechanism (130) arranged on the scissor telescopic arm (120);

and a control unit (5) provided on the vehicle body (410);

the displacement driving mechanism (340) comprises a ball screw module arranged on the lower fixed plate (330), a gear rack displacement multiplication module arranged on the middle moving plate (320) and a chain sprocket driving module arranged on the upper moving plate (310); the chain and sprocket driving module comprises sprockets (346) respectively rotatably arranged at two ends of the upper movable plate (310), two groups of chains (315) respectively meshed with the two groups of sprockets (346), chain end fixing frames (347) respectively arranged at the bottom of the vertical support bracket (210) and on the middle movable plate (320), and the two groups of chains (315) are respectively fixedly connected with the chain end fixing frames (347) to form a closed loop;

the control assembly (5) controls the horizontal movement assembly (3) to drive the vertical movement assembly (2) to linearly displace along the horizontal direction, controls the vertical movement assembly (2) to drive the telescopic driving mechanism (130) to linearly displace along the vertical direction, realizes vertical and horizontal reciprocating movement of the swing nozzle unit (110), forms a rectangular closed cleaning range, and completes automatic cleaning of the cleaning surface.

2. The automatic cleaning device for the oil cooling radiating fins of the rail transit motor car according to claim 1, wherein the ball screw module comprises a second ball screw (342) which is rotatably arranged at the top of the lower fixed plate (330) through a rotating frame, a servo motor (341) which is arranged in parallel with the second ball screw (342), and synchronous wheels are respectively arranged at one end of the second ball screw (342) and on a motor shaft of the servo motor (341), and the two groups of synchronous wheels are connected and driven through a synchronous belt; the second ball screw (342) is also provided with a second screw slider which is fixedly connected with the middle moving plate (320).

3. The automatic cleaning device for oil cooling fins of rail transit vehicles according to claim 1, wherein the rack and pinion displacement multiplication module comprises a linkage gear (343) rotatably arranged on the middle moving plate (320), racks (344) respectively fixedly arranged on the bottom of the upper moving plate (310) and the lower fixed plate (330), and the top and the bottom of the linkage gear (343) are respectively meshed with the two groups of racks (344).

4. An automatic cleaning device for oil-cooled radiating fins of rail transit vehicles according to any one of claims 1-3, characterized in that the swinging nozzle unit (110) comprises a row nozzle (111), a first fixing frame (112), a rotary joint (113), a bearing with seat (114), a first driving motor (115), a crank wheel (116) and a swinging rod (117);

the first fixing frame (112) is fixedly connected with the front end of the scissors telescopic arm (120); the rotary joint (113) and the bearing with the seat (114) are respectively fixedly connected with the first fixing frame (112); the upper end and the lower end of the row spray heads (111) are respectively and rotatably connected with a rotary joint (113) and a bearing with a seat (114); the first driving motor (115) is fixedly arranged in the first fixing frame (112), and a motor shaft of the first driving motor is fixedly connected with the crank wheel (116); the crank wheel (116) is provided with a rocker, and the sliding limit of the rocker is positioned in a limit groove arranged on the swinging rod (117); one end of the swinging rod (117) is fixedly connected with the row of spray heads (111).

5. An automatic cleaning device for oil cooling fins of rail transit motor vehicles according to any one of claims 1-3, wherein the rear end of the scissor telescopic arm (120) is fixedly arranged on a second fixing frame, and the second fixing frame is arranged on the vertical moving assembly (2) in a sliding manner through a sliding block guide rail in a matching manner, so that the telescopic nozzle assembly (1) can vertically move along a guide rail arranged on the vertical moving assembly (2).

6. An automatic cleaning device for oil cooling fins of rail transit motor cars according to any one of claims 1-3, characterized in that the bottom of the vertical support bracket (210) is slidably arranged at the top of the horizontal moving assembly (3) through the cooperation of a slide block guide rail, the two ends of the first ball screw (220) are rotatably arranged on the vertical support bracket (210), the top end of the first ball screw is fixedly connected with the motor shaft of a second driving motor (230) arranged at the top of the vertical support bracket (210), and a first screw slide block is arranged on the lever body of the first ball screw; the first lead screw sliding block is fixedly connected with the second fixing frame.

7. A rail transit vehicle oil cooling fin automatic cleaning device according to any one of claims 1-3, wherein the vehicle body (410) comprises a profile frame and a metal door, wherein a storage battery pack, a liquid storage tank and a cleaning pump set are arranged in the profile frame, the storage battery supplies electric energy for other functional components, and the cleaning pump set pumps cleaning liquid in the liquid storage tank into the swinging nozzle unit (110) so as to flush the oil cooling fin.

8. A rail transit motor car oil cooling fin self-cleaning device according to any one of claims 1-3, wherein the control assembly (5) comprises a control panel and a control module arranged on the car body (410), and the control module can control related functional components to realize the flushing function by inputting instructions through the control panel.

9. An automatic cleaning device for oil-cooled heat dissipation fins of rail transit vehicle according to any one of claims 1-3, further comprising a manual spray gun (6) provided on top of the vehicle body (410), and a manual valve (7) provided on the side of the vehicle body (410).