Autonomous charging type rail conveyor system

Abstract

The invention relates to an autonomous charging type rail conveyor system which comprises a rail, a power supply box, a truck and a truck head. A wedge-shaped self-adaption electricity taking device is installed on the right side face of the headstock through a connecting support, one end of a braking electric push rod is fixed to the bottom of a headstock bottom frame through a triangular frame, and the other end of the braking electric push rod is fixed to the bottom of a movable rotating rod on the connecting support through a triangular frame. One end of the transmission device is connected with a motor shaft on the headstock chassis, the other end of the transmission device is connected with an input shaft of the headstock reduction gearbox, the control device is fixed above the headstock, the truck is connected behind the headstock, the power supply box is fixed outside the track by a certain distance, and the power supply device is fixed inside the power supply box. Rapid charging can be carried out through the wedge-shaped self-adaptive power taking device and the power supply device, a convenient and rapid new mode is provided for energy supplement of the rail conveyor, the braking effect of the braking device is strong, and the use safety of the rail conveyor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural transportation equipment, and more specifically, to an autonomous charging track transporter system. Background Art

[0002] At present, the hilly terrain is complex with large slope changes, posing high requirements for the braking of mountain track transportation equipment. Moreover, traditional transportation equipment generally uses gasoline engines for driving, or manual charging by taking the battery home, and cannot automatically replenish energy. The technological upgrade is restricted by the dual limitations of the traditional energy supply mode and the braking system. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an autonomous charging track transporter system aiming at the above deficiencies.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An autonomous charging track transporter system includes a track, a locomotive head, and a freight car. The locomotive head is used to drive the freight car to move on the track. A wedge-shaped adaptive power-taking device, a battery, a motor, a transmission device, an RFID reader, a control device, and a traveling mechanism are provided on the locomotive head. The battery is used to supply power to the motor, and the motor is used to drive the traveling mechanism to move along the track through the transmission device. A holding brake system is provided on the locomotive head, and a motor electromagnetic brake is provided on the output shaft of the motor. The holding brake system is used to brake the traveling mechanism during braking, and the motor electromagnetic brake is used to brake the motor during braking. The RFID reader is used to send a charging signal to the control device of the locomotive head and an external power supply station after sensing an RFID tag on the side of the track near the power supply station. The control device is used to control the motor to stop, and the brake system and the motor electromagnetic brake to brake after receiving the charging signal. The wedge-shaped adaptive power-taking device is used to dock and cooperate with the intelligent positioning power supply device of the external power supply station to charge the battery. A distance measuring sensor is provided on the intelligent positioning power supply device. The intelligent positioning power supply device is arranged on a translation mechanism. The distance measuring sensor is used to detect the distance between itself and the wedge-shaped adaptive power-taking device after the external power supply station receives the charging signal. The translation mechanism is used to adjust the position of the intelligent positioning power supply device according to the distance detection result to align the intelligent positioning power supply device with the wedge-shaped adaptive power-taking device for easy docking.

[0006] Furthermore, the motor is also used to stop supplying power to the motor and enter the regenerative braking mode after identifying that the speed exceeds a preset threshold. The output shaft of the motor rotates in the reverse direction for forced deceleration, and the motor becomes a generator to charge the battery in the reverse direction. The centrifugal brake provided on another transmission shaft of the spur gear reduction box also brakes, holding another transmission shaft of the spur gear reduction box to prevent the locomotive head from losing speed and sliding down.

[0007] Furthermore, the wedge-shaped adaptive power-taking device includes a concave power-taking copper block, an insulating bracket, bolts, springs, a power-taking bracket, an insulating support block, and a locknut. The power-taking bracket is V-shaped and fixedly connected to the vehicle head at the middle. Concave power-taking copper blocks are arranged on the inner sides of both ends. The two concave power-taking copper blocks are respectively a positive-pole power-taking copper block and a negative-pole power-taking copper block. The concave power-taking copper blocks are fixed on the insulating bracket by two connecting bolts, and the connecting bolts are in clearance fit with the insulating bracket. Springs are arranged between the outer sides of the connecting bolts and between the insulating bracket and the concave power-taking copper blocks.

[0008] Furthermore, the intelligent positioning power supply device includes a lead screw translation mechanism, a wedge-shaped insulating bracket, an electric push rod, and a laser distance sensor. The lead screw translation mechanism is used to drive the wedge-shaped insulating bracket to move left and right. A laser distance sensor is arranged in the middle of the wedge-shaped insulating bracket. Positive and negative power supply copper blocks corresponding to the positive and negative concave power-taking copper blocks are respectively fixed on the outer sides of the two inclined surfaces. The electric push rod is used to push the wedge-shaped insulating bracket to dock with the wedge-shaped adaptive power-taking device. The laser distance sensor is used to measure the distance from the insulating bracket.

[0009] Furthermore, the block brake system includes a tripod, a brake push rod, a brake rotating rod, a brake wire, and a braking device. The braking device is fixed on the high-speed transmission shaft extending from the straight gear reduction box of the transmission device. The brake drums of the two block brakes in the braking device are installed face to face on the high-speed transmission shaft. The fixed handle of the block brake is fixed on the vehicle head by bolts. The brake wire passes through the hole in the fixed handle and is connected to the rotating handle. The other end of the brake wire passes through the connecting inclined frame and is connected to the brake rotating rod. The back of the brake drum is fixed on the straight gear reduction box through four holes. The fixed handle is welded and fixed to the brake drum. The brake wire passes through the hole in the fixed handle and is connected to the rotating handle. The other end of the brake wire is directly connected to another hole on the brake rotating rod. The centrifugal brake is axially fixed on another high-speed transmission shaft extending from the straight gear reduction box.

[0010] After the present invention adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0011] Compared with the current traditional battery-powered rail transporters, the self-charging rail transporter of the present invention has triple braking methods: a holding brake, an electromagnetic brake of the motor, and a centrifugal brake. The braking effect is strong. It can be automatically positioned and charged through RFID identification, and the charging is convenient and fast. The wedge-shaped adaptive power-taking device can be translated and adjusted to cooperate with the intelligent positioning power supply device, with strong adaptability. When taking power, the positive and negative power supply copper blocks contact and squeeze the positive and negative concave power-taking copper blocks. The squeezing causes the spring to contract, and because the diameter of the bolt is slightly smaller than the diameter of the hole on the insulating bracket, the positive and negative concave power-taking copper blocks can rotate 4° in both positive and negative directions, thus adapting to a certain extent to the angular error of the positive and negative power supply copper blocks extended by the intelligent positioning power supply device. And due to the spring contraction deformation, the positive and negative concave power-taking copper blocks always maintain close contact with the positive and negative power supply copper blocks, ensuring a reliable connection between the wedge-shaped adaptive power-taking device and the intelligent positioning power supply device, and further ensuring the stability of the charging process. The present invention can conveniently and quickly replenish energy for the rail transporter, providing a new energy replenishment method. The braking device can ensure the safety of the rail transporter during driving, achieving good parking on slopes, accurate parking at fixed points, and stable parking in case of stall.

[0012] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present invention;

[0014] Figure 2 is the top view structural schematic diagram of the vehicle head;

[0015] Figure 3 is the three-dimensional structural schematic diagram of the vehicle head;

[0016] Figure 4 is the connection schematic diagram between the vehicle head and the external power supply station during charging;

[0017] Figure 5 is the overall structural schematic diagram of the intelligent positioning power supply device;

[0018] Figure 6 is the partial structural schematic diagram of the intelligent positioning power supply device;

[0019] Figure 7 is the structural schematic diagram of the wedge-shaped adaptive power-taking device;

[0020] Figure 8 is the side view structural schematic diagram of the transmission device;

[0021] Figure 9 is the three-dimensional structural schematic diagram of the transmission device.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Rail; 2. Locomotive head; 3. Power supply station; 4. Freight car; 21. Wedge-shaped adaptive power-taking device; 22. Braking device; 23. Transmission device; 24. Lithium battery; 25. Control device; 26. DC brushless motor; 27. Bottom plate; 28. Underframe; 211. Concave power-taking copper block; 212. Insulating bracket; 213. Bolt; 214. Spring; 215. Power-taking bracket; 216. Insulating support block; 217. Locknut; 218. Fixed bracket; 219. Washer; 2110. Fixing frame; 221. Tripod; 222. Braking push rod; 223. Braking turning rod; 224. Brake cable; 225. Brake cable; 226. Band brake; 2261. Fixed handle; 2262. Rotating handle; 227. Band brake; 2271. Fixed handle; 2272. Rotating handle; 231. Driving synchronous pulley; 2311. Load-bearing wheel; 2312. Load-bearing wheel; 2313. Shifting push rod; 232. Synchronous belt; 233. Driven synchronous pulley; 234. Bearing seat; 235. Bearing seat frame; 236. Transmission shaft; 237. Coupling; 238. Straight gear reducer; 2381. High-speed transmission shaft; 2382. Centrifugal brake; 2383. Input shaft; 2384. Output shaft; 239. Driving wheel; 24. Lithium battery; 25. Control device; 251. Control box; 252. Shock pad; 253. Relay; 254. L-shaped frame; 255. Motor driver; 256. Support bracket; 257. L-shaped plate; 258. Connecting bracket; 259. Card reader; 26. DC brushless motor; 261. Electromagnetic brake; 262. Motor output shaft

[0024] 31. Intelligent positioning power supply device; 311. Power supply copper block; 3111. Lead screw module; 31111. Lead screw motor; 31112. Slide; 3112. Power supply bottom plate; 3113. L-shaped connecting support leg; 3114. C-shaped plate; 3115. Plug; 3116. Slide; 3117. Support leg; 3118. Self-lubricating double rail; 312. Wedge-shaped insulating frame; 313. Laser distance measuring sensor; 314. L-shaped plate; 315. Optical axis clamping seat; 316. Gasket; 317. 24v electric push rod; 318. Optical axis; 319. Slide block; 3110. L-shaped push rod bracket; 321. Green power supply lamp; 322. Emergency stop button; 323. Alarm button; 4. Freight car Detailed implementation mode

[0025] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0027] As Figures 1-9 shown, the self-charging rail transport system of the present invention includes a rail 1, a locomotive head 2, and a power supply box 3. In an alternative embodiment of the first embodiment, a lithium battery 24 is installed on the upper surface of the front side of the bottom plate 27 of the locomotive head 2. In the middle part of the bottom plate 27, a DC brushless motor 26 is fixed by bolts on the upper surface. The DC brushless motor 26 drives the input shaft 2383 of the spur gear reduction box 238 fixed on the left side surface of the chassis 28 through a transmission device 23. Therefore, the output shaft 2384 of the spur gear reduction box 238 drives the driving wheel 239 to rotate. The driving wheel 239 fixed on the right side surface of the chassis 28 rotates meshing with the rack on the rail 1. Two load-bearing wheels 2311 and 2312 are fixed between the lower surface of the bottom plate 27 and the right side surface of the chassis 28. A guide wheel 2310 is fixed between the right side surface of the chassis 28 and directly below the load-bearing wheel 2311. The rear side of the bottom plate 27 is fixed with a control device 25 through an L-shaped plate 257 and a connecting bracket 258. A wedge-shaped adaptive power-taking device 21 is installed on the right rear side of the bottom plate 27 through a fixing bracket 218. One end of a brake push rod 222 is fixed to the lower surface of the bottom plate 27 through a tripod 221. The other end of the brake push rod 222 is welded and fixed to a brake turning rod 223 through a tripod. The brake turning rod 223 drives a braking device 22 through two brake wires 224 and 225.

[0028] As an implementation manner, the power supply box 3 is provided with an intelligent positioning power supply device 31. The power supply box 3 is fixed on the ground through a box body support column 33. A rain shield 34 is installed on the head of the box body of the power supply box 3.

[0029] As an implementation manner, the wedge-shaped adaptive power-taking device 21 is connected to the power-taking bracket 215 and the fixing bracket 2110 by bolts, and thus is fixed on the fixing bracket 218 on the bottom plate 27. Both ends of the wedge-shaped adaptive power-taking device 21 take power through the concave power-taking copper blocks 211. The concave power-taking copper blocks 211 are fixed on the insulating bracket 212 by two countersunk bolts. Both sides of the two holes of the insulating bracket 212 are fixed on the bolt 213 by the locknuts 217 and ordinary nuts with a certain gap therebetween. The head of the bolt 213 is fixed on the insulating support block 216. The insulating support block 216 is fixed on the power-taking bracket 215 by bolts. A spring 214 and a washer 219 are also sleeved on the part of the bolt 213 between the power-taking bracket 215 and the insulating bracket 212. The left concave power-taking copper block 211 is the negative power-taking block, and the right concave power-taking copper block 211 is the positive power-taking block.

[0030] When the energy of the vehicle head is insufficient, the vehicle head reads the RFID tag through the card reader and stops at the power supply station. The intelligent positioning power supply device in the power supply station identifies and locates the wedge-shaped adaptive power-taking device of the vehicle head, and the intelligent positioning power supply device extends the push rod to perform the power supply operation. After the charging is completed, the push rod retracts, and the vehicle head continues to carry out the transportation work.

[0031] When taking power, the positive and negative power supply copper blocks 311 contact and press the positive and negative concave power-taking copper blocks 211. The pressing causes the spring 214 to contract, and because the diameter of the bolt 213 is slightly smaller than the diameter of the hole on the insulating bracket 212, the positive and negative concave power-taking copper blocks 211 can rotate positively and negatively by an angle of 4°, so as to adapt to the angle error of the positive and negative power supply copper blocks 311 extended by the intelligent positioning power supply device 31 to a certain extent. And due to the shrinkage deformation of the spring, the positive and negative concave power-taking copper blocks 211 always keep in close contact with the positive and negative power supply copper blocks 311.

[0032] As an implementation manner, the intelligent positioning power supply device 31 is fixed inside the power supply box 3 through four support feet 3117. Above the support feet 3117, a power supply bottom plate 3112 is fixed by bolts. On the rear side of the power supply bottom plate 3112, a lead screw module 3111 is fixed by six M3 bolts. On the front side of the power supply bottom plate 3112, two L-shaped connecting support feet 3113 are fixed by bolts. Between the two L-shaped connecting support feet 3113, a C-shaped plate 3114 is fixed by bolts. On the C-shaped plate 3114, a self-lubricating double rail 3118 is fixed. On the self-lubricating double rail 3118, a slide table 3116 is fixed. At both ends of the self-lubricating double rail 3118, plugs 3115 are fixed. A lead screw slide table 31112 on the lead screw module 3111 and the slide table 3116 on the self-lubricating double rail 3118 are both fixed with an L-shaped push rod bracket 3110 by bolts. Above the short surface of the L-shaped push rod bracket 3110, a 24V electric push rod 317 is fixed. On the long surface, a slider is fixed by bolts. One end of an optical axis 318 is axially fixed through the slider 319. The other end of the optical axis is fixed by an optical axis clamping seat 315. The bottom of the clamping seat 315 is fixed on the L-shaped plate 314 by bolts. The L-shaped plate 314 and the gasket 316 fix the push rod head 3171 and the wedge-shaped insulating bracket 312 together. Inside the wedge-shaped insulating bracket 312, a laser distance sensor 313 is fixed by bolts. On the two inclined surfaces of the wedge-shaped insulating bracket 312, positive and negative power supply copper blocks 311 are fixed by countersunk head bolts. The left side is the positive pole and the right side is the negative pole.

[0033] During positioning, the lead screw module 3111 drives the laser distance sensor 313 to read the distance data between the wedge-shaped adaptive power taking device 21 and the intelligent positioning power supply device 31 by scanning a circle. The point at the lowest distance is the best power supply point. The lead screw module 3111 drives the push rod head 3171 to move to the best power supply point, the push rod extends, and the positive and negative concave power taking copper blocks 211 are in contact with the positive and negative power supply copper blocks 311, and the power supply starts.

[0034] As an implementation manner, a rain shield 34 is fixed above the power supply box 3. The box body 32 is a sheet metal part bent into a square shape, with an embedded square concave surface on the side close to the vehicle head 2. The bottom of the box body 32 is fixed on the ground through box body support columns 33.

[0035] As an implementation manner, the control device 25 is fixed on the bottom plate 27 through an L-shaped plate 257 and a connecting bracket 258. A shock pad 252 is padded under the bottom of the control box 251. The control box 251 is fixed on the connecting bracket 258 and the support bracket 256 together with the shock pad 252 through four holes at the bottom. The lower part of the support bracket 256 is connected to the L-shaped plate 314. An electric motor driver 255 is fixed on the L-shaped plate 314. Above the fixed frame 2110 on the right side of the electric motor driver 255, three relays 253 are fixed. On the right side under the bottom plate 27, an L-shaped frame 254 is fixed. A card reader 259 is fixed inside the L-shaped frame 254.

[0036] The control box 251 is used to read data through the motor driver 255 and the card reader 259, and control the speed of the brushless DC motor 26 through the motor driver 255, and to switch the circuit on and off during autonomous charging through the relay 253, so as to realize the driving control of the rail transport locomotive head 2;

[0037] As an implementation mode, the braking device 22 is fixed on a high-speed transmission shaft 2381 extending from a spur gear reducer 238, and the two brake pots 226 and 227 in the braking device 22 are installed face to face on the high-speed transmission shaft 2381. The fixed handle 2261 of the brake pot 226 is fixed to the fixed bracket 218 by bolts, and the brake line 225 passes through the hole on the fixed handle 2261 and is connected to the rotating handle (2262). The other end of the brake line 225 passes through the connecting inclined frame 229 and is connected to the brake rotating rod 223. The back of the 227 brake pot is fixed to the spur gear reducer 238 through four holes, and the fixed handle 2271 is welded and fixed to the 227 brake pot. The brake line 224 passes through the hole on the fixed handle 2271 and is connected to the rotating handle (2272). The other end of the brake line 226 is directly connected to another hole of the brake rotating rod 223. The centrifugal brake 2382 is axially fixed on another high-speed transmission shaft 2381 extending from the spur gear reducer 238.

[0038] When the front of the vehicle needs to brake, the brake push rod extends, pushes the brake lever, drives the two brake lines to shrink, and pulls the two brakes 226 and 227 to hold the transmission shaft of the spur gear reducer for braking and deceleration. After the push rod is extended to the bottom, the motor electromagnetic brake brakes and holds the motor output shaft, and the front of the vehicle stops; when starting, the motor electromagnetic brake is released, the front motor starts to rotate, the brake push rod starts to shrink, and the two brake lines are slowly loosened, so that the two brakes are slowly released, the spur gear reducer drives normally, the front of the vehicle moves forward slowly, the push rod shrinks to the bottom, and the front of the vehicle moves forward normally. When the front of the vehicle stalls, the motor recognizes that the speed is overspeeding, and gradually stops supplying power to the motor until it is no longer powered, and enters the regenerative braking mode. The motor becomes a generator, and the electricity sent is charged into the lithium battery to replenish energy. In addition to the two brakes and electromagnetic brakes for braking, the centrifugal brake located on the other transmission shaft of the spur gear reducer also starts braking, holding the other transmission shaft of the spur gear reducer to ensure that the front of the vehicle will not stall and slide. When starting, the electromagnetic brake of the motor is released, the motor of the front of the vehicle starts to rotate, the brake push rod starts to shrink, and the two brake lines are slowly loosened, thereby slowly releasing the two brakes, the spur gear reducer transmits normally, the front of the vehicle moves forward slowly, the push rod shrinks to the bottom, and the front of the vehicle moves forward normally.

[0039] As an implementation manner, the transmission device 23 is located above the bottom plate 27. The bottom of the DC brushless motor 26 is fixed to the bottom plate 27 by bolts. The output shaft 262 of the DC brushless motor 26 drives the driving synchronous pulley 231 to rotate through key connection. The driving synchronous pulley 231 is fixed to the output shaft 262 of the DC brushless motor 26 through a bushing and end face bolts. The driving synchronous pulley 231 drives the driven synchronous pulley 233 to rotate through a synchronous belt 232. The driven synchronous pulley 233 is fixed to one end face of the transmission shaft 236 by bolts. The transmission shaft 236 is fixed by two bearing seats 234. The bearing seats 234 and the bearing seat frame 235 are fixed by bolts. The bearing seat frame 235 is welded above the bottom plate 27. The other end of the transmission shaft 236 is connected to the input shaft 2383 of the spur gear reduction box 238 through a coupling 237. The output shaft 2384 of the spur gear reduction box 238 is connected to the driving wheel 239 through spline connection for transmission.

[0040] The usage method of the present invention specifically includes the following steps:

[0041] Step 1: Turn on the power switch of the rail transport vehicle, connect it to the mobile phone, and remotely control it. The staff operates the mobile phone to move the machine head for transportation operations;

[0042] Step 2: When the battery power of the machine head is insufficient, it automatically runs and stops at the power supply station;

[0043] Step 3: The intelligent positioning power supply device at the power supply station extends, docks with the wedge-shaped adaptive power-taking device of the vehicle head, and charges;

[0044] Step 4: After charging is completed, the intelligent positioning power supply device retracts, and the machine head runs normally.

[0045] Step 5: When braking is required, the braking push rod on the machine head extends, the braking device brakes, and the machine head decelerates and gradually stops.

[0046] The above is an example of the best implementation manner of the present invention. The parts not described in detail are all common general knowledge of those skilled in the art. The protection scope of the present invention shall be subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present invention is also within the protection scope of the present invention.

Claims

1. An autonomous charging type rail transport system, comprising a rail, a locomotive head, a power supply box and a freight car, characterized in that, The locomotive head is used to drive the truck to move on the track. The locomotive head is provided with a wedge-shaped adaptive power supply device, a battery, a motor, a transmission device, an RFID card reader, a control device and a traveling mechanism. The battery is used to supply power to the motor, and the motor is used to drive the traveling mechanism to move along the track through the transmission device. The locomotive head is provided with a brake system, and a motor electromagnetic brake is provided on the motor output shaft. The brake system is used to brake the traveling mechanism when braking, and the motor electromagnetic brake is used to brake the motor when braking. The RFID card reader is used to sense the RFID tag on the side of the track near the external power supply station and then to the control device of the locomotive head and the external power supply station. A charging signal is sent, and the control device is used to control the motor to stop after receiving the charging signal, and the brake system and the motor electromagnetic brake are used for braking; the wedge-shaped adaptive power supply device is used to dock with the intelligent positioning power supply device of the external power supply station to charge the battery, and a distance measuring sensor is provided on the intelligent positioning power supply device, and the intelligent positioning power supply device is arranged on the translation mechanism. The distance measuring sensor is used to detect the distance between itself and the wedge-shaped adaptive power supply device after the external power supply station receives the charging signal, and the translation mechanism is used to adjust the position of the intelligent positioning power supply device according to the distance detection result, so that the intelligent positioning power supply device is aligned with the wedge-shaped adaptive power supply device for easy docking.

2. The autonomous charging type rail transport system according to claim 1, characterized in that, The motor is also used to stop supplying power to the motor and enter regenerative braking mode after identifying that the speed exceeds a preset threshold. The motor becomes a generator and charges the battery in reverse. The centrifugal brake set on the other drive shaft of the spur gear reducer also brakes to hold the other drive shaft of the spur gear reducer so that the front of the vehicle will not stall and slide.

3. The self-charging rail transport system according to the claim, characterized in that The wedge-shaped adaptive power-taking device includes a concave power-taking copper block, an insulating bracket, bolts, a spring, a power-taking bracket, an insulating support block and a lock nut. The power-taking bracket is V-shaped and the middle part is fixedly connected to the front of the vehicle. Concave power-taking copper blocks are arranged on the inner sides of both ends. The two concave power-taking copper blocks are respectively the positive and negative power-taking copper blocks; the concave power-taking copper block is fixed to the insulating bracket by two connecting bolts, and the connecting bolts are gap-matched with the insulating bracket. A spring is arranged on the outside of the connecting bolt between the insulating bracket and the concave power-taking copper block.

4. The self-charging rail transport system according to the claim, characterized in that The intelligent positioning power supply device includes a screw translation mechanism, a wedge-shaped insulating frame, an electric push rod and a laser ranging sensor. The screw translation mechanism is used to drive the wedge-shaped insulating frame to move left and right. A laser ranging sensor is arranged in the middle of the wedge-shaped insulating frame. Positive and negative power supply copper blocks corresponding to the concave power supply copper blocks of the positive and negative poles are fixed on the outer sides of the two inclined surfaces respectively. The electric push rod is used to push the wedge-shaped insulating frame to dock with the wedge-shaped adaptive power supply device. The laser ranging sensor is used to measure the distance to the insulating bracket.

5. The self-charging rail transport system according to the claim, characterized in that, The holding brake system includes a tripod, a brake push rod, a brake rotating rod, a brake wire and a braking device; the braking device is fixed on the high-speed transmission shaft extending from the straight gear reduction box of the transmission device. The brake drums of the two holding brakes in the braking device are installed face to face on the high-speed transmission shaft. The fixed handle of the holding brake is fixed on the vehicle head by bolts. The brake wire passes through the hole on the fixed handle and is connected to the rotating handle. The other end of the brake wire passes through the connecting inclined frame and is connected to the brake rotating rod. The back of the brake drum is fixed on the straight gear reduction box through four holes. The fixed handle is welded and fixed to the brake drum. The brake wire passes through the hole on the fixed handle and is connected to the rotating handle. The other end of the brake wire is directly connected to another hole on the brake rotating rod. The centrifugal brake is axially fixed on another high-speed transmission shaft extending from the straight gear reduction box.

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