CN210004772U

CN210004772U - body machine for charging and ash-raking in front of smelting furnaces

Info

Publication number: CN210004772U
Application number: CN201920566914.2U
Authority: CN
Inventors: 华建中
Original assignee: Wuxi Tongwei Mechanical And Electrical Manufacturing Co Ltd
Current assignee: Wuxi Tongwei Mechanical And Electrical Manufacturing Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-31
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a kind of smelting stokehole feeding ash-raking body machine and working method thereof, including the skip car, the charging box, ash-raking arm and the slag-raking arm, the skip car includes th base, second base, third base and feeding arm, second base swivelling joint is in the top of th base, third base sliding connection is in the top of second base, end and the third base swivelling joint of feeding arm, the tip of feeding arm is provided with the couple, the side that the charging box is relative with the feeding car is provided with the th peg, the side that the ash-raking arm is relative with the charging car is provided with the second peg, the side that the slag-raking arm is relative with the charging box is provided with the third peg, the couple can respectively be connected with the peg, the second peg and the third peg in a hookup manner, the kind of smelting stokehole feeding machine and working method thereof can replace manual work such as ash-raking, ash-raking and the completion to the smelting process.

Description

body machine for charging and ash-raking in front of smelting furnaces

Technical Field

The utility model relates to the field of metal smelting, in particular to a body machine for kinds of smelting stokehold charging and ash removing.

Background

is an indispensable device in the metal smelting process, a smelting furnace is used for melting solid metal into liquid metal, feeding is an indispensable process in the process, namely solid metal is added into the smelting furnace, ash is removed, impurities floating on the surface of the liquid metal are removed, slag is removed, and impurities deposited at the bottom of the liquid metal are removed.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, the utility model provides an smelting stokehole charging and ash removing machine, which replaces manual or manual driving of forklifts and other devices to perform charging, slag removing, ash removing and other processes in the stokehole smelting furnace, reduces the labor intensity of workers, ensures the personal safety of the workers and improves the production efficiency.

Technical scheme, in order to realize the purpose, the smelting stokehole charging and ash scraping body machine comprises a charging car, a charging box, an ash scraping arm and a slag scraping arm, wherein the charging car slides along a th guide rail, the charging car and a smelting furnace are respectively arranged on two sides of a th guide rail, the ash scraping arm and the slag scraping arm are arranged on the same side of the charging box, the charging car comprises a th base, a second base, a third base and a charging arm, a th base is connected in a sliding mode along a 46 th guide rail, the second base is connected above a th base in a rotating mode, the third base is connected above the second base in a sliding mode, a end of the charging arm is connected with the third base in a rotating mode, an end of the charging arm is provided with a th hook, the charging box is provided with a th hanging shaft opposite to the charging car, a th hanging shaft opposite to the ash scraping arm is provided with the side opposite to the charging car, and a 8945 th hanging shaft is provided with a third hanging shaft, and a third hanging shaft is provided opposite to the charging box.

step, th base bottom is provided with the roller bearing side by side, the both ends of roller bearing roll connection has th leading wheel and second leading wheel respectively, th leading wheel roll connection is on guide rail, the both sides of second leading wheel are provided with the turn-ups, the turn-ups supports the both sides of pressing to th guide rail, the top of th base is provided with fixedly connected with disc bearing, disc bearing's excircle fixedly connected with gear, disc bearing swivelling joint is in the below of second base.

Step , the top of second base is provided with the guide rail groove of two parallels, the guide rail groove is "U" shape of standing on one's side, the below of third base is connected with a plurality of second roller bearings side by side, the both ends roll connection of second roller bearing has the second gyro wheel, second gyro wheel roll connection is in the guide rail groove, the top fixedly connected with rack in guide rail groove, the top of second roller bearing is provided with the third roller bearing, the both ends of third roller bearing are provided with the gear, the gear is connected with the rack cooperation.

, an encoder is arranged at the rotary connection position of the feeding arm and the third base, the middle part of the feeding arm is also hinged to the end of the telescopic rod, and the other end of the telescopic rod is hinged to the third base.

steps are advanced, the arm includes pole and the tight mechanism of hook in feeding arm shell, the feeding arm, the end and the third base swivelling joint of feeding arm shell, the inside end fixedly connected with second telescopic link of feeding arm shell, be connected in the free end and the feeding arm of second telescopic link, roll connection in the feeding arm shell in the feeding arm, the tight mechanism of hook sets up in the pole in the feeding arm, the tight mechanism of hook includes couple, couple stretch out to outside the pole in the feeding arm.

, the hooking mechanism comprises a third telescopic rod, a connecting rod, a second connecting rod and a 0 hook, the fixed end of the third telescopic rod is connected to the end of the feeding arm inner rod, the movable end of the third telescopic rod is connected with the 2 end of the 1 connecting rod, the other end of the 3 connecting rod is hinged to the hook, the end of the second connecting rod is hinged to the hook, the other end is connected with the feeding arm inner rod through a spring, the feeding arm inner rod is fixedly connected with a guide sleeve, a second guide sleeve and a third guide sleeve, the guide sleeve and the second guide sleeve are respectively connected to the two ends of the connecting rod in a sliding manner, and the third guide sleeve is connected with the second connecting rod in a sliding manner.

, a guide wheel and a second guide wheel are fixedly connected to the tail end of the inner rod of the feeding arm, a second guide rail and a third guide rail are fixedly connected to the upper side face and the lower side face of the tail end inside the shell of the feeding arm respectively, the guide wheel is pressed against the second guide rail, the second guide wheel is pressed against the third guide rail, a third guide wheel is fixedly connected to the side face of the head end inside the shell of the feeding arm, a fourth guide rail is fixedly connected to the side wall of the head end of the inner rod of the feeding arm, and the third guide wheel is pressed against the fourth guide rail.

, the ash raking arm/the slag raking arm is respectively provided with a raking plate and a mounting seat, the second hanging shaft/the third hanging shaft is respectively vertically connected to the mounting seat, the mounting seat and the raking plate are pressed on the th bracket, the mounting seat is provided with a positioning hole, the end face of the rod in the feeding arm is provided with a positioning shaft, the positioning shaft is in fit connection with the positioning hole, an auxiliary measuring device is arranged between the ash raking arm and the slag raking arm, the auxiliary measuring device is provided with three mutually perpendicular side walls, measuring blocks are arranged on the three mutually perpendicular side walls, and the ash raking arm and the slag raking arm can respectively move to be in contact measurement with the measuring blocks on the three mutually perpendicular side walls.

, the feeding box is pressed above the second bracket, three continuous side surfaces of the feeding box are provided with fixed baffles, two opposite side surfaces of the feeding box are provided with slide rails, the slide rails are connected with push plates in a sliding manner, the side surface of the feeding box opposite to the feeding vehicle is provided with a fourth hanging shaft, the fourth hanging shaft is horizontally arranged, the end surface of the inner rod of the feeding arm is provided with a second hook, the second hook is connected with the second hanging shaft in a hooking manner, the second bracket is provided with a top plate and a bottom plate, a supporting rod and a second supporting rod are connected between the top plate and the bottom plate, the middle part of the 0 supporting rod is hinged with the middle part of the second supporting rod, the end of the 567 supporting rod is hinged with the bottom plate, the other end of the second supporting rod is connected with the top plate in a rolling manner, the end of the second supporting rod is connected with the bottom plate in a sliding manner, the other end of the top plate is hinged with the supporting rod, the other end of the fourth telescopic.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the charging car of the present invention connected to a th guide rail;

fig. 3 is a schematic structural view of the charging car of the present invention;

fig. 4 is a schematic structural view of the feeding arm of the present invention;

fig. 5 is a schematic structural view of the inside of the feeding arm of the present invention;

FIG. 6 is a schematic structural view of portion A of FIG. 2;

fig. 7 is a schematic structural view of the connection between the third base and the second base according to the present invention;

FIG. 8 is a schematic structural view of the charging box of the present invention;

FIG. 9 is a schematic structural view of the ash scraping arm of the present invention;

FIG. 10 is a schematic structural view of the slag raking arm of the present invention;

fig. 11 is a schematic structural diagram of an auxiliary measuring device according to the present invention;

fig. 12 is a schematic structural view of the hooking mechanism of the present invention;

FIG. 13 is a schematic structural view of portion B of FIG. 12;

FIG. 14 is a schematic structural view of portion C of FIG. 12;

FIG. 15 is a schematic view of the connection between the second link and the spring;

fig. 16 is a schematic structural view of a third guide wheel according to the present invention;

fig. 17 is a structural sectional view of the gap adjusting mechanism of the present invention.

Detailed Description

The present invention will be further described in with reference to the accompanying drawings.

front feeding and ash-raking body machine for smelting furnaces as shown in fig. 1 to 17 comprises a feeding trolley 1, a feeding box 2, an ash-raking arm 3 and a slag-raking arm 4, wherein the feeding trolley 1 slides along a th guide rail 5, the feeding trolley 1 and the smelting furnace 6 are respectively arranged on two sides of a th guide rail 5, the ash-raking arm 3 and the slag-raking arm 4 are both arranged on the same side of the feeding box 2, the feeding trolley 1 comprises a th base 7, a second base 8, a third base 9 and a feeding arm 10, the th base 7 is connected along a th guide rail 5 in a sliding manner, the second base 8 is connected above a th base 7 in a rotating manner, the third base 9 is connected above a second base 8 in a sliding manner, an end of the feeding arm 10 is connected with the third base 9 in a rotating manner, an end of the feeding arm 10 is provided with a 5967 th hook 11, a 638 th guide rail 9 of the feeding box 2 is connected with the third base 9 in a rotating manner, ends of the feeding arm 10 are provided with a pothook 9, a 639 of the feeding trolley 2, a third base 9 is provided with a pothook 9, a side of the feeding trolley 10, a pothook 9 is provided with a side of a second guide rail 9, a pothook 9, a vertical direction of a furnace shaft 4614, a vertical direction of a feeding trolley 1, a vertical direction of a vertical measuring device, a vertical measuring device is provided with a feeding trolley 1, a vertical measuring device is provided with a vertical measuring device of a feeding trolley 1, a feeding trolley 9, a vertical measuring device, a vertical.

The bottom of the th base 7 is provided with th rollers 15 side by side, wherein th th rollers are connected with a driving motor, both ends of the th rollers 15 are respectively connected with a th guide wheel and a second guide wheel in a rolling manner, the th guide wheel is connected to the th guide rail 5 in a rolling manner, both sides of the second guide wheel are provided with flanges, the flanges are pressed against both sides of the th guide rail 5 so that the second guide wheel has a guiding function, the th base can slide along the th guide rail, a fixedly connected turntable bearing is arranged above the th base 7, the outer circular surface of the bearing is fixedly connected with a gear 23, the turntable bearing is rotatably connected below the second base 8, the outer ring of the turntable bearing is shaped with a gear body, the outer ring of the turntable bearing is fixedly connected with the th base, the inner ring of the turntable bearing is fixedly connected with the second base, the second base is also fixedly connected with a driving gear, the driving gear is connected with the second base, the second base is connected with the driving gear, and the turntable bearing is capable of rotating around the driving gear above the second base.

The top of second base 8 is provided with the guide rail groove 18 of two parallels, guide rail groove 18 is "U" shape of standing on one's side, the below of third base 9 is connected with a plurality of second rollers side by side, the both ends roll connection of second roller has second gyro wheel 20, second gyro wheel 20 sliding connection is in guide rail groove 18, the head end in guide rail groove and tail end all fixedly connected with dog 57 to avoid second gyro wheel roll-off guide rail inslot outside, the top fixedly connected with rack 21 in guide rail groove 18, the top of second roller is provided with third roller 22, the both ends of third roller 22 are provided with gear 23, gear 23 is connected with the cooperation of rack 21. The third roller is connected with a driving motor, and the driving motor drives the gear to move forward or backward along the rack to complete the rolling movement of the third base on the second base.

The rotary connection part of the feeding arm 10 and the third base 9 is provided with an encoder, the middle part of the feeding arm 10 is further hinged to the end of the telescopic rod 24, the other end of the telescopic rod 24 is hinged to the third base 9, the telescopic rod is telescopic, the feeding arm rotates along the connection part of the feeding arm and the third base, and the encoder can accurately control the rotation angle of the feeding arm.

Add arm 10 including adding arm shell 25, pole 26 in the arm that feeds in raw material and the tight mechanism of hook, add end and the 9 swivelling joint of third base of arm shell 25, the end fixedly connected with second telescopic link 27's of the inside arm shell 25 that feeds in raw material stiff end, the free end and the pole 26 in the arm that feeds in raw material of second telescopic link 27 are connected, pole 26 sliding connection in the arm shell 25 that feeds in raw material, the tight mechanism of hook sets up in pole 26 in the arm that feeds in raw material, the tight mechanism of hook includes couple 11, couple 11 stretches out outside pole 26 in the arm that feeds in raw material.

The hooking mechanism comprises a third telescopic rod 28, an th connecting rod 29, a second connecting rod 30 and a th hook 11, wherein the fixed end of the third telescopic rod 28 is connected to the end of the feeding arm inner rod 26, the movable end of the third telescopic rod 28 is connected with the 1 end of the 0 th connecting rod 29, the 3 end of the 2 th connecting rod 29 is hinged to the th hook 11, the end of the second connecting rod 30 is hinged to the th hook 11, the end is connected with the feeding arm inner rod 26 through a spring 31, the feeding arm inner rod 26 is fixedly connected with a th guide sleeve 32, a second guide sleeve 33 and a third guide sleeve 34, the th guide sleeve 32 and the second guide sleeve 33 are respectively connected to the two ends of the th connecting rod 29 in a sliding mode, the third guide sleeve 34 is connected with the second connecting rod 30 in a sliding mode, a limiting disc 58 is arranged at the end of the second connecting rod connecting spring, and when the second connecting rod slides to the limiting disc 58 is connected with the third guide sleeve in a pressing mode so as to avoid the spring being connected.

The third telescopic link is extended, the hook is rotated to be opened conveniently to be hooked with the th hanging shaft/the second hanging shaft/the third hanging shaft, the third telescopic link is shortened, and the hook is rotated to be hooked with the th hanging shaft/the second hanging shaft/the third hanging shaft.

The tail end of the feeding arm inner rod 26 is fixedly connected with an th guide wheel 16 and a second guide wheel 17, the th guide wheel and the second guide wheel are arranged upwards and downwards respectively, the upper side face and the lower side face of the tail end inside the feeding arm shell 25 are fixedly connected with a second guide rail 35 and a third guide rail 36 through a gap adjusting mechanism 59 respectively, the th guide wheel 16 is pressed against the second guide rail 35, the second guide wheel 17 is pressed against the third guide rail 36, the gap adjusting mechanism 59 comprises a push rod 60, a fixed sleeve 61, a nut 62 and a cover plate 63, the fixed sleeve is fixed with the feeding arm shell, the bottom end of the push rod is fixed with the feeding arm inner rod, the push rod and the fixed sleeve are coaxially sleeved, the nut is connected with the push rod in a sliding mode through threads, and the cover plate is connected with the fixed sleeve and pressed against the nut, so that the nut can rotate freely.

The side face of the head end inside the feeding arm shell 25 is fixedly connected with a third guide wheel 37, the side wall 45 of the head end of the inner rod 26 of the feeding arm is fixedly connected with a fourth guide rail 38, and the third guide wheel 37 is pressed against the fourth guide rail 38.

The third guide wheel comprises a connecting block 74, a push rod 64, a wheel shaft 65 and a roller 66, the connecting block is fixedly connected with the shell of the feeding arm, a wheel groove 67 is formed in the connecting block, a sliding groove is formed in the side wall of the wheel groove, two ends of the wheel shaft are connected with the sliding groove in a sliding mode, the roller is arranged in the wheel groove and connected with the wheel shaft in a rolling mode, and the push rod is pressed against two ends of the wheel shaft and connected with the connecting block through threads.

The ash raking arm 3/the slag raking arm 4 are respectively provided with a raking plate 39 and an installation base 40, the second hanging shaft 13/the third hanging shaft 14 are respectively vertically connected to the installation base 40, the installation base 40 and the raking plate 39 are pressed onto a th bracket 41, the ash raking arm or the slag raking arm is arranged in a downward inclined mode, the installation base 40 is provided with a positioning hole 42, the end face of the rod 26 in the feeding arm is provided with a positioning shaft 43, the positioning shaft 43 is connected with the positioning hole 42 in a matched mode, an auxiliary measuring device 44 is arranged between the ash raking arm 3 and the slag raking arm 4, the auxiliary measuring device 44 is provided with three mutually vertical side walls 45, two sides of the three mutually vertical side walls are adjacently arranged, measuring blocks 73 are arranged on the three mutually vertical side walls 45, and the ash raking arm 3 and the slag raking arm 4 can respectively move to be in contact with the measuring blocks 73 on the three mutually vertical side walls 45 for.

The bracket is provided with slide bar 68 with the department of taking off the board and the mount pad junction respectively to reduce the area of contact of slide bar 68 with take off the board or the mount pad, bracket still is provided with position detection piece 71 for whether the detection is taken off grey arm or is taken off the sediment arm and place.

The feeding box 2 is pressed to the upper side of the second bracket 46 in a pressing mode, three continuous side faces of the feeding box 2 are provided with fixed baffle plates 47, two opposite side faces are provided with sliding rails 48, a push plate 49 is connected to the sliding rails 48 in a sliding mode, the side face, opposite to the feeding car 1, of the feeding box 2 is provided with a fourth hanging shaft 72, the fourth hanging shaft 72 is horizontally arranged, a second hook 50 is arranged on the end face of the inner rod of the feeding arm, the second hook 50 is connected with the fourth hanging shaft 72 in a hooking mode, the second bracket 46 is provided with a top plate 51 and a bottom plate 52, a supporting rod 53 and a second supporting rod 54 are connected between the top plate 51 and the bottom plate 52, the middle portion of a supporting rod 53 is hinged to the middle portion of the second supporting rod 54, the end of the third supporting rod is hinged to the bottom plate 52, the other end is connected with the top plate 51 in a sliding mode, the end of the second supporting rod 54 is connected with the bottom plate 52 in a sliding mode, the other end of the top plate 51 is hinged to the supporting rod of the fourth supporting rod , and the other.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

The front charging ash raking body machine for the smelting furnace is characterized by comprising a charging trolley (1), a charging box (2), an ash raking arm (3) and a slag raking arm (4), wherein the charging trolley (1) slides along a th guide rail (5), the charging trolley (1) and the smelting furnace (6) are respectively arranged on two sides of a th guide rail (5), the ash raking arm (3) and the slag raking arm (4) are arranged on the same side of the charging box (2), the charging trolley (1) comprises a th base (7), a second base (8), a third base (9) and a charging arm (10), the th base (7) is connected with the guide rail (5) along a th guide rail (5) in a sliding mode, the second base (8) is connected above the th base (7) in a rotating mode, the third base (9) is connected above the second base (8) in a sliding mode, the feeding arm (10) is connected with the third base (25) in a rotary mode, a feeding shaft (9) is connected with a fifth base (9) on the opposite side of a feeding shaft (9), a second base (9) and a third hook shaft (9) is connected with a feeding shaft (9), a feeding shaft (9) on a feeding shaft (9) side (9) and a feeding shaft (9) opposite side (9), a feeding shaft (9) of a feeding shaft (9), a feeding shaft (9) and a feeding shaft (9), a second hook (9) and a feeding shaft (9), a feeding shaft (9) opposite side (9) and a feeding shaft (9), a feeding.
2. The stokehole charging and ash-raking machine of claim 1, wherein a roller (15) is arranged at the bottom of the th base (7) side by side, both ends of the roller (15) are respectively connected with a th guide wheel and a second guide wheel in a rolling manner, the th guide wheel is connected to the th guide rail (5) in a rolling manner, flanges are arranged on both sides of the second guide wheel and are pressed against both sides of the th guide rail (5), a turntable bearing is fixedly connected above the th base (7), a gear (23) is fixedly connected to the outer circular surface of the turntable bearing, and the turntable bearing is rotatably connected below the second base (8).
3. The stokehole charging and ash-raking machine of claim 1, wherein two parallel guide rail grooves (18) are formed above the second base (8), the guide rail grooves (18) are in a U shape standing on the side, a plurality of second rollers are connected below the third base (9) side by side, second rollers (20) are connected to two ends of each second roller in a rolling mode, the second rollers (20) are connected in the guide rail grooves (18) in a rolling mode, racks (21) are fixedly connected to the upper portions of the guide rail grooves (18), third rollers (22) are arranged above the second rollers, gears (23) are arranged at two ends of the third rollers (22), and the gears (23) are connected with the racks (21) in a matching mode.
4. The stokehole charging and ash-raking machine as claimed in claim 1, wherein an encoder is arranged at the rotary connection of the charging arm (10) and the third base (9), the middle of the charging arm (10) is also hinged to the end of the telescopic rod (24), and the other end of the telescopic rod (24) is hinged to the third base (9).
5. The stokehole charging and ash-raking machine as claimed in claim 1, wherein the charging arm (10) comprises a charging arm outer shell (25), a charging arm inner rod (26) and a hooking mechanism, the end of the charging arm outer shell (25) is rotatably connected with the third base (9), the end inside the charging arm outer shell (25) is fixedly connected with the fixed end of a second telescopic rod (27), the free end of the second telescopic rod (27) is connected with the charging arm inner rod (26), the charging arm inner rod (26) is connected in the charging arm outer shell (25) in a rolling manner, the hooking mechanism is arranged in the charging arm inner rod (26), the hooking mechanism comprises the -th hook (11), and the -th hook (11) extends out of the charging arm inner rod (26).
6. The stokehole charging and ash scraping machine as claimed in claim 5, wherein the hooking mechanism comprises a third telescopic rod (28), a th connecting rod (29), a second connecting rod (30) and a th hook (11), the fixed end of the third telescopic rod (28) is connected to the end of the charging arm inner rod (26), the movable end of the third telescopic rod (28) is connected to the 363 end of the th connecting rod (29), the other end of the th connecting rod (29) is hinged to the th hook (11), the end of the second connecting rod (30) is hinged to the th hook (11), the other 25 end is connected to the charging arm inner rod (26) through a spring (7331), the charging arm inner rod (26) is fixedly connected to a th guide sleeve (32), a second guide sleeve (33) and a third guide sleeve (34), the third guide sleeve (32) and the second guide sleeve (33) are connected to the connecting rod ) and the second guide sleeve (34) in a sliding manner.
7. The stokehole charging and ash-removing machine as claimed in claim 5, wherein a guide wheel (16) and a second guide wheel (17) are fixedly connected to the tail end of the inner rod (26) of the charging arm, a second guide rail (35) and a third guide rail (36) are fixedly connected to the upper side and the lower side of the tail end inside the charging arm shell (25), the guide wheel (16) is pressed against the second guide rail (35), the second guide wheel (17) is pressed against the third guide rail (36), a third guide wheel (37) is fixedly connected to the side of the head end inside the charging arm shell (25), a fourth guide rail (38) is fixedly connected to the side wall (45) of the head end of the inner rod (26) of the charging arm, and the third guide wheel (37) is pressed against the fourth guide rail (38).
8. The stokehole charging and ash-raking machine as claimed in claim 1, wherein the ash-raking arm (3)/the slag-raking arm (4) are respectively provided with a raking plate (39) and a mounting seat (40), the second hanging shaft (13)/the third hanging shaft (14) are respectively vertically connected to the mounting seat (40), the mounting seat (40) and the raking plate (39) are pressed against the bracket (41), the mounting seat (40) is provided with a positioning hole (42), the end surface of the feeding arm inner rod (26) is provided with a positioning shaft (43), the positioning shaft (43) is in fit connection with the positioning hole (42), an auxiliary measuring device (44) is arranged between the ash-raking arm (3) and the slag-raking arm (4), the auxiliary measuring device (44) is provided with three mutually perpendicular side walls (45), the three mutually perpendicular side walls (45) are provided with measuring blocks (73), and the ash-raking arm (3) and the slag-raking arm (4) can respectively move to contact with the three mutually perpendicular side walls (45) for measurement.
9. The stokehole charging and ash-raking machine as claimed in claim 1, wherein the charging box (2) is pressed above the second bracket (46), three continuous sides of the charging box (2) are provided with fixed baffles (47), two opposite sides are provided with slide rails (48), the slide rails (48) are slidably connected with push plates (49), the side of the charging box (2) opposite to the charging carriage (1) is provided with a fourth hanging shaft (72), the fourth hanging shaft (72) is horizontally arranged, the end surface of the inner rod of the charging arm is provided with a second hook (50), the second hook (50) is hooked with the second hanging shaft (13), the second bracket (46) is provided with a top plate (51) and a bottom plate (52), a supporting rod () and a second supporting rod (54) are connected between the top plate (51) and the bottom plate (52), the middle part of the supporting rod (53) and the bottom plate (54) of the second supporting rod () and the middle part of the supporting rod (54), the supporting rod (28) is hinged with the bottom plate (53), the bottom plate (53) and the supporting rod (4935), the end of the telescopic rod (48) is hinged with the top plate (55), and the telescopic rod (35), and the end of the telescopic rod (24) is hinged with the telescopic rod (35).