阅读说明：本技术 一种刮板转载机的刮板连接设备 (Scraper connecting device of scraper elevating conveyor ) 是由 王林雨 陈学军 于 2020-12-26 设计创作，主要内容包括：本申请涉及一种刮板转载机的刮板连接设备,属于刮板转载机的领域,包括用于将刮板组件从下方自机尾处拉动至机头处的下连接装置、用于将刮板组件从上方自机头处拉动至机尾处的上连接装置,所述下连接装置包括沿转载机本体长度方向运行的连接杆、与连接杆连接的下拉动绳、以及转动设置在机头处的用于收卷下拉动绳的下收绳辊,所述下收绳辊连接有驱动其转动以收卷下拉动绳的下驱动组件,所述连接杆设置在底板的下方,且转载机本体两个相互平行的侧壁沿其长度方向均开设有滑行长槽,连接杆的端部移动设置在滑行长槽内。刮板连接设备的设置降低了工作人员安装刮板组件的劳动强度,同时,提高了工作人员安装刮板组件的效率。(The utility model relates to a scraper blade jointing equipment of scraper blade elevating conveyor belongs to scraper blade elevating conveyor's field, including being used for from the below with the scraper blade subassembly from tail department stimulate to the lower connecting device of aircraft nose department, be used for from the last connecting device of aircraft nose department from the top with the scraper blade subassembly to tail department, connecting device includes along elevating conveyor body length direction operation's connecting rod, the lower rope of receiving that is connected with the connecting rod and rotate the lower rope roller that receives that is used for rolling lower rope that sets up in aircraft nose department down, it is connected with its lower drive assembly who rotates with rolling lower rope of drive to receive the rope roller down, the connecting rod sets up in the below of bottom plate, and two mutually parallel lateral walls of elevating conveyor body have all seted up the long groove that slides along its length direction, and the tip removal of connecting rod sets up in the long groove that slides. The scraper connecting equipment is arranged, so that the labor intensity of workers for installing the scraper component is reduced, and meanwhile, the efficiency of the workers for installing the scraper component is improved.)

1. The utility model provides a scraper blade jointing equipment of scraper blade elevating conveyor which characterized in that: the scraper assembly (120) is pulled to a machine head (170) from a machine tail (180) from the lower part, the scraper assembly (120) is pulled to an upper connecting device (300) from the machine head (170) to the machine tail (180) from the upper part, the lower connecting device (200) comprises a connecting rod (210) running along the length direction of a reversed loader body (100), a lower pull rope (220) connected with the connecting rod (210), and a lower rope collecting roller (230) rotatably arranged at the machine head (170) and used for collecting the lower pull rope (220), the lower rope collecting roller (230) is connected with a lower driving assembly (270) driving the lower rope collecting roller to rotate so as to collect the lower pull rope (220), the connecting rod (210) is arranged below a bottom plate (150), and two mutually parallel side walls of the reversed loader body (100) are provided with elongated grooves (240) along the length direction, the end part of the connecting rod (210) is movably arranged in the sliding long groove (240).

2. The scraper blade attachment apparatus of a scraper loader as claimed in claim 1, wherein: the two ends of the connecting rod (210) are rotatably connected with rotating wheels (260), the side wall of the sliding long groove (240) is provided with a track (250) along the length direction, and the rotating wheels (260) are arranged on the track (250) in a rolling mode.

3. The scraper blade attachment apparatus for a scraper loader of claim 2, wherein: the lower driving assembly (270) comprises a lower motor speed reducer (271) and a pair of head supporting columns (272) arranged at the ends of the machine head (170), the lower rope collecting roller (230) is arranged between the head supporting columns (272), the lower rope collecting roller (230) is rotatably connected with the head supporting columns (272), an output shaft of the lower motor speed reducer (271) is fixedly connected with the lower rope collecting roller (230) through a coaxial key, and the lower motor speed reducer (271) is fixedly connected with the head supporting columns (272).

4. The scraper blade attachment apparatus of a scraper loader as claimed in claim 3, wherein: the number of the lower pull ropes (220) is two.

5. The scraper blade attachment apparatus of a scraper loader as claimed in claim 4, wherein: the connecting rod (210) is fixedly provided with a pair of lock catches (273) for connecting chain rings.

6. The scraper blade attachment apparatus of a scraper loader as claimed in claim 5, wherein: the upper connecting device (300) comprises an upper rope collecting roller (310) rotatably arranged at the tail (180), an upper pulling rope (320) with one end wound on the upper rope collecting roller (310), and an upper driving assembly (330) for driving the upper rope collecting roller (310) to rotate.

7. The scraper blade attachment apparatus of a scraper loader as claimed in claim 6, wherein: go up drive assembly (330) including last motor reducer (331), with last motor reducer (331) output shaft coaxial key fixed connection's drive gear and tail support column (332) of a pair of vertical setting, tail support column (332) are fixed to be set up at tail (180) end, go up receipts rope roller (310) and set up between tail support column (332) and rotate with tail support column (332) and be connected, it has driven gear (334) to go up receipts rope roller (310) coaxial fixed cover, go up motor reducer (331) and tail support column (332) fixed connection, and driving gear (333) and driven gear (334) meshing, it has last pulling rope (320) to go up to receive the roller coiling, and goes up the one end and the chain link connection of pulling rope (320).

8. The scraper blade attachment apparatus of a scraper loader of claim 7, wherein: go up connecting device (300) and still include and be used for connecting rod (210) and stimulate pulling subassembly (340) to tail (180) department, pulling subassembly (340) is including drawing rope (342), stay cord roller (341) rotate with tail support column (332) and set up, and draw rope (342) one end and stay cord roller (341) coiling, and the other end is connected with connecting rod (210), stay cord roller (341) are connected with its pivoted driving piece of drive.

9. The scraper blade attachment apparatus of a scraper loader as claimed in claim 8, wherein: the driving piece comprises a first pull rope slave gear (343) and a second pull rope slave gear (344), the first pull rope slave gear (343) is fixedly sleeved with a pull rope roller (341) through a coaxial key, the second pull rope slave gear (344) is rotatably connected with the tail support column (332) through a rotating shaft, and the second pull rope slave gear (344) is respectively meshed with the driving gear and the first pull rope slave gear (343).

Technical Field

The application relates to the field of scraper blade elevating conveyor, in particular to scraper blade connecting equipment of a scraper blade elevating conveyor.

Background

A scraper elevating conveyor is a common apparatus for transporting coal mines.

In the related art: referring to fig. 1, the scraper loader generally comprises a loader body 100 and a scraper assembly 120 disposed on the loader body 100 for scraping a coal mine, wherein the scraper assembly 120 mainly comprises a plurality of scrapers 121 disposed in parallel and an iron chain 122 for connecting two adjacent scrapers 121, and the iron chain 122 is composed of a plurality of chain rings. Two side walls of the reversed loader body 100 which are parallel to each other are provided with an upper limiting groove 130 and a lower limiting groove 140, a bottom plate 150 is laid between the upper limiting groove 130 and the lower limiting groove 140, the upper limiting groove 130 is arranged above the bottom plate 150, the lower limiting groove 140 is arranged below the bottom plate 150, two ends of the scraper 121 are inserted into the upper limiting groove 130 or the lower limiting groove 140 in the operation process, a driving device 160 for driving the scraping component to operate along the length direction of the reversed loader body 100 is arranged at the head 170 of the reversed loader body 100, and in operation, the driving device 160 drives the scraper component 120 to operate along the length direction of the reversed loader body 100 so as to drive a coal mine to operate. Because holistic scraper blade subassembly 120 is great, lead to the staff to install inconveniently, at present the staff often need divide into multistage section subassembly with scraper blade subassembly 120 when installing scraper blade subassembly 120 on elevating conveyor body 100, later lay every section subassembly on scraper blade 121 quick-witted body, reuse connects the chain ring and connects the section subassembly and become the cyclic annular scraper blade subassembly 120 of end-to-end connection to realize scraper blade subassembly 120 and install on elevating conveyor body 100.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the scraper component 120 is installed, the scraper component needs to be laid on the reversed loader body 100 section by section, and then the scraper component is connected through the connecting chain ring, so that the installation is inconvenient, and the labor intensity is high.

Disclosure of Invention

In order to facilitate the installation of staff on the elevating conveyor body, the application provides a scraper blade jointing equipment of scraper blade elevating conveyor.

The application provides a pair of scraper blade jointing equipment of scraper blade elevating conveyor relates to following technical scheme:

the scraper connecting device comprises a lower connecting device and an upper connecting device, wherein the lower connecting device is used for pulling a scraper component from a tail to a machine head from the lower part, the upper connecting device is used for pulling the scraper component from the machine head to the tail from the upper part, the lower connecting device comprises a connecting rod, a lower movable rope and a lower rope collecting roller, the connecting rod runs along the length direction of a reversed loader body, the lower movable rope is connected with the connecting rod, the lower rope collecting roller is rotatably arranged at the machine head and used for collecting the lower movable rope, the lower rope collecting roller is connected with a lower driving assembly which drives the lower rope collecting roller to rotate so as to collect the lower movable rope, the connecting rod is arranged below a bottom plate, two parallel side walls of the reversed loader body are provided with sliding long grooves along the length direction of the side walls, and the end part of the connecting rod is movably.

Through adopting above-mentioned technical scheme, when the staff need install the scraper blade subassembly on the elevating conveyor body, can remove the elongated slot that slides earlier with the connecting rod and be located the tail end, later the staff is connected two chain rings on the scraper blade subassembly with the connecting rod, treats that the chain ring finishes with the connecting rod is connected, receive the rope roller rotation under the drive of lower drive assembly drive to make and receive the rope roller rolling down and pull the rope down, and then make down pull rope accessible connecting rod pulling scraper blade subassembly and move towards aircraft nose department. The arrangement of the sliding long groove can limit the connecting rod, so that the connecting rod is difficult to deviate or separate from the reversed loader body when in work, and the lower connecting device works more stably. Treat that the scraper blade subassembly moves to aircraft nose department back under connecting device's effect down, the staff connects connecting device and scraper blade subassembly to make the scraper blade subassembly can be pulled to tail department under last connecting device's effect, treat that the scraper blade subassembly pulls to tail department back, the staff will go up connecting device and scraper blade subassembly separation, and connect the head and the tail of scraper blade subassembly through the go-between. The scraper connecting equipment is arranged, so that the labor intensity of workers for installing the scraper component is reduced, and meanwhile, the efficiency of the workers for installing the scraper component is improved.

Optionally, both ends of the connecting rod are rotatably connected with rotating wheels, a rail is arranged on the side wall of the sliding elongated slot along the length direction of the sliding elongated slot, and the rotating wheels are arranged on the rail in a rolling manner.

Through adopting above-mentioned technical scheme, the setting of runner has made things convenient for the connecting rod to move along the length direction who slides the elongated slot, and simultaneously, orbital setting can play limiting displacement to the runner for the connecting rod is difficult to take place to deflect more when the operation, so that the connecting rod moves more steadily. The arrangement of the rotating wheels and the track improves the working stability of the lower connecting device.

Optionally, the lower driving assembly comprises a lower motor reducer and a pair of head support columns arranged at the head end, the lower rope winding roller is arranged between the head support columns and is rotatably connected with the head support columns, an output shaft of the lower motor reducer is fixedly connected with the lower rope winding roller through a coaxial key, and the lower motor reducer is fixedly connected with the head support columns.

Through adopting above-mentioned technical scheme, the setting of head support post can play the supporting role to receiving the rope roller down, and the setting of lower motor reducer can provide drive power for receiving the rotation of rope roller down. When the lower connecting device needs to wind the lower pull rope so that the lower pull rope can pull the scraper assembly to move towards the machine head, the lower motor speed reducer rotates to drive the lower rope winding roller to rotate so as to wind the lower pull rope, and therefore the scraper assembly moves towards the machine head under the action of the lower pull rope.

Optionally, the number of the lower pull ropes is two.

Through adopting above-mentioned technical scheme, the symmetry setting of lower pull rope is in the position department that the connecting rod is close to the tip, and lower wind-up roll rotates and can carry out the rolling to two lower pull ropes simultaneously to make two lower pull ropes can spur the connecting rod simultaneously, because the connecting rod atress is even and then can keep comparatively stable running state.

Optionally, the connecting rod is fixedly provided with a pair of lock catches for connecting the chain rings.

Through adopting above-mentioned technical scheme, when the connecting rod moves to tail department, the staff opens the hasp to make the hasp can detain the chain ring. After the lower connecting device pulls the scraper component to the machine head, the worker opens the lock catch to enable the lock catch to be separated from the chain ring. The setting of hasp can make things convenient for the staff to separate or be connected connecting rod and chain ring, and then has improved the efficiency that the staff installed the scraper blade subassembly on elevating conveyor body.

Optionally, the upper connecting device comprises an upper rope collecting roller rotatably arranged at the tail end, an upper pulling rope with one end wound on the upper rope collecting roller, and an upper driving assembly driving the upper rope collecting roller to rotate.

Through adopting above-mentioned technical scheme, after scraper blade subassembly moved to aircraft nose department in elevating conveyor below, the staff will descend connecting device and scraper blade subassembly separation to link connection in will going up the pulling rope and the scraper blade subassembly, later go up the drive assembly drive and go up the receipts rope roller and rotate, so that go up the receipts rope roller rolling and go up the pulling rope, and then make and go up the pulling rope and can stimulate scraper blade subassembly and move towards tail department.

Optionally, go up drive assembly including last motor reducer, with last motor reducer output shaft coaxial key fixed connection's drive gear and a pair of vertical tail support column that sets up, the fixed tail support column that sets up at the tail end, go up to receive the rope roller and set up between the tail support column and rotate with the tail support column and be connected, it has driven gear to go up the coaxial fixed cover of receipts rope roller, go up motor reducer and tail support column fixed connection, and driving gear and driven gear meshing, it has last pulling rope to go up to receive the roller coiling, and goes up the one end and the chain link connection of pulling rope.

Through adopting above-mentioned technical scheme, the tail support column can play the supporting role to last receipts rope roller, and then makes last receipts rope roller can pull the scraper component when rotating. Drive assembly can rotate for last wind-up roll and play drive power, when the staff need the rolling pull-up rope, goes up the motor reducer and rotates in order to control to go up the rope-receiving roll and rotate in order to roll up the drive rope.

Optionally, go up connecting device still including being used for connecting the connecting rod and stimulate the pulling subassembly to tail department, the pulling subassembly includes back stay cord, stay cord roller, the stay cord roller rotates with the tail support column and sets up, and pulling rope one end and stay cord roller coiling, the other end is connected with the connecting rod, the stay cord roller is connected with its pivoted driving piece of drive.

Through adopting above-mentioned technical scheme, after the connecting rod moved to aircraft nose department, the staff can rotate through driving piece drive guy rope roller to make guy rope roller can twine back stay cord, and then make back stay cord can stimulate the connecting rod to tail department, so that the staff reuses the connecting rod.

Optionally, the driving part is a first pull rope slave gear and a second pull rope slave gear, the first pull rope slave gear is fixedly sleeved with the pull rope roller coaxial key, the second pull rope slave gear is rotatably connected with the tail support column through a rotating shaft, and the second pull rope slave gear is respectively meshed with the driving gear and the first pull rope slave gear.

Through adopting above-mentioned technical scheme, when the connecting rod is located tail department, the winding of pull back rope is on the stay cord roller, and go up the drive rope winding on last receipts rope roller, later motor reducer rotates down, so that receive down the rope roller and wind down the drive rope, go up motor reducer simultaneously and rotate, in order to drive through drive gear and driven gear and go up receipts rope roller and rotate and then loosen and put the drive rope, drive gear drives the stay cord roller through second stay cord from gear and first stay cord follow gear and rotates simultaneously, in order to loose the pull back stay cord. When last connecting device need stimulate scraper blade subassembly, go up the gyration of motor reducer to make and go up the winding up roll rolling and go up the driving rope, the stay cord roller is convoluteed back the stay cord simultaneously, so that the connecting rod moves towards tail department.

In summary, the present application includes at least one of the following advantageous technical effects:

1. setting of the scraper connecting equipment: when the working personnel need install the scraper blade subassembly on the elevating conveyor body, can slide the elongated slot earlier with the connecting rod removal and be located the aircraft nose end, later the working personnel is connected two chain rings on the scraper blade subassembly with the connecting rod, treats that the chain ring finishes with the connecting rod is connected, receives the rope roller rotation under the drive of lower drive assembly drive to make and receive the rope roller rolling down and pull the rope down, and then make down pull rope accessible connecting rod pulling scraper blade subassembly and move towards aircraft nose department. The arrangement of the sliding long groove can limit the connecting rod, so that the connecting rod is difficult to deviate or separate from the reversed loader body when in work, and the lower connecting device works more stably. Treat that the scraper blade subassembly moves to aircraft nose department back under connecting device's effect down, the staff connects connecting device and scraper blade subassembly to make the scraper blade subassembly can be pulled to tail department under last connecting device's effect, treat that the scraper blade subassembly pulls to tail department back, the staff will go up connecting device and scraper blade subassembly separation, and connect the head and the tail of scraper blade subassembly through the go-between. Due to the arrangement of the scraper connecting equipment, the labor intensity of workers for installing the scraper component is reduced, and meanwhile, the efficiency of the workers for installing the scraper component is improved;

2. setting of a driving piece: after the connecting rod moved to the aircraft nose department, the staff can rotate through driving piece drive guy rope roller to make guy rope roller can twine back stay cord, and then make back stay cord can stimulate the connecting rod to tail department, so that the staff reuses the connecting rod. When the connecting rod is located tail department, the winding of pull back rope is on the stay cord roller, and go up the drive rope winding on last receipts rope roller, later motor reducer rotates down, so that receive rope roller wind down the drive rope, go up motor reducer simultaneously and rotate, in order to drive through drive gear and driven gear and receive the rope roller and rotate and then loosen and put the drive rope, drive gear drives the stay cord roller through second stay cord from gear and first stay cord follow gear and rotates simultaneously, in order to loosen and put the pull back stay cord. When last connecting device need stimulate scraper blade subassembly, go up the gyration of motor reducer to make and go up the winding up roll rolling and go up the driving rope, the stay cord roller is convoluteed back the stay cord simultaneously, so that the connecting rod moves towards tail department.

Drawings

FIG. 1 is a related art drawing;

FIG. 2 is a schematic structural view of the working state of the scraper connecting device in the embodiment of the present application;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is a schematic view showing the overall structure of the blade attaching apparatus in the embodiment of the present application.

Description of reference numerals: 100. a reversed loader body; 120. a squeegee assembly; 121. a squeegee; 122. an iron chain; 130. an upper limiting groove; 140. a lower limiting groove; 150. a base plate; 160. a drive device; 170. a machine head; 180. a tail; 200. a lower connecting device; 210. a connecting rod; 220. pulling the rope downwards; 230. a lower rope-collecting roller; 240. a sliding long groove; 250. a track; 260. a rotating wheel; 270. a lower drive assembly;

271. a lower motor reducer; 272. a head support post; 273. locking; 300. an upper connecting device;

310. an upper rope reeling roller; 320. pulling the rope upwards; 330. an upper drive assembly; 331. an upper motor speed reducer;

332. a tail support column; 333. a driving gear; 334. a driven gear; 340. a pulling assembly; 341. a rope pulling roller; 342. pulling back the rope; 343. a first pull rope driven gear; 344. the second pull cord is driven by the gear.

Detailed Description

The present application is described in further detail below with reference to figures 2-4.

The embodiment of the application discloses scraper blade jointing equipment of scraper blade elevating conveyor. Referring to FIG. 2, the lower attachment 200 is primarily used to move the squeegee assembly 120 from the rear end 180 to the head end 170 from below the base plate 150, and the upper attachment 300 is primarily used to move the squeegee assembly 120 from the head end 170 to the rear end 180 from above the base plate 150.

Referring to fig. 2 and 3, the lower connecting device 200 includes a connecting rod 210, a pair of lower pull cords 220, and a lower cord take-up roller 230 rotatably provided at the head 170 for taking up the lower pull cords 220. Two parallel side walls of the reversed loader body 100 are symmetrically provided with sliding long grooves 240 along the length direction at positions below the bottom plate 150, and the end parts of the connecting rods 210 are connected inside the sliding long grooves 240. The side walls of the sliding long groove 240 are provided with a pair of rails 250 along the length direction, two ends of the connecting rod 210 are rotatably connected with rotating wheels 260, the rotating wheels 260 are arranged inside the sliding long groove 240, and the rotating wheels 260 are arranged between the pair of rails 250 in a rolling manner. One end of the lower pull rope 220 is connected to the connection rod 210, and the other end is wound around the lower rope take-up roller 230.

Referring to fig. 3 and 4, the lower rope take-up roller 230 is connected with a lower driving assembly 270 that drives the lower rope take-up roller to rotate so as to take up the lower pulling rope 220, and the lower driving assembly 270 includes a lower motor reducer 271 and a pair of head support columns 272. The head support columns 272 are vertically arranged at the head 170, the lower rope reeling roller 230 is arranged between the pair of head support columns 272, and the lower rope reeling roller 230 is rotatably connected with the upper ends of the head support columns 272. An output shaft of the lower motor reducer 271 is fixedly connected with the lower rope-collecting roller 230 through a coaxial key, and the lower motor reducer 271 is fixedly connected with the head support column 272. To facilitate the connection of the connecting rod 210 to the flight assembly 120 by the operator, the connecting rod 210 is fixedly provided with a pair of catches 273 for connecting chain rings.

Referring to fig. 2 and 4, when a worker needs to install the scraper assembly 120, the scraper assembly 120 may be placed under the base plate 150, and the chain links of the scraper 121 are connected to the connecting rod 210 at the tail 180 through the lock 273, and then the lower motor reducer 271 rotates to drive the lower rope take-up roller 230 to rotate, and the lower rope take-up roller 230 takes up the lower pull rope 220, so that the connecting rod 210 may travel to the head 170 along the length direction of the sliding long groove 240. When the squeegee assembly 120 is moved to the head 170, the operator separates the catches 273 on the connecting rods 210 from the links on the squeegee assembly 120 and attaches the links on the squeegee assembly 120 to the upper attachment device 300.

The upper connecting device 300 includes an upper rope take-up roller 310, an upper pulling rope 320 having one end wound around the upper rope take-up roller 310, and an upper driving assembly 330 for driving the upper rope take-up roller 310 to rotate. Go up receipts rope roller 310 and rotate the top that sets up at tail 180 end, go up pulling rope 320 symmetry and be provided with two, and the one end of going up pulling rope 320 all twines on last receipts rope roller 310, and the other end all is connected with hasp 273. When the squeegee assembly 120 is moved to the head 170, the worker connects the lock 273 of the upper pulling rope 320 with the chain link of the squeegee assembly 120, and then the driving assembly drives the upper rope take-up roller 310 to rotate to take up the upper pulling rope 320. The upper driving assembly 330 includes an upper motor reducer 331, a driving gear coaxially and fixedly connected with an output shaft of the upper motor reducer 331, and a pair of vertically arranged tail support posts 332. The pair of tail support columns 332 are vertically and fixedly arranged at the end of the tail 180, the tail support columns 332 can be used for supporting the upper rope-collecting roller 310, the upper rope-collecting roller 310 is arranged between the pair of tail support columns 332, and the upper rope-collecting roller 310 is rotatably connected with the tail support columns 332. The upper rope-collecting roller 310 is coaxially and fixedly sleeved with a driven gear 334, the shell of the upper motor speed reducer 331 is fixedly connected with the tail support column 332, and the driving gear 333 is meshed with the driven gear 334.

When the scraper assembly 120 moves to the nose 170 under the action of the lower connecting device 200, the worker separates the lock 273 of the connecting rod 210 from the chain ring of the scraper assembly 120, and then connects the lock 273 of the end of the upper pulling rope 320 with the chain ring of the scraper assembly 120, and the upper motor reducer 331 rotates to drive the upper rope winding roller 310 to rotate through the driving gear 333 and the driven gear 334, thereby winding the upper pulling rope 320.

In order to facilitate the worker to move the connecting rod 210 at the head 170 to the tail 180, the upper connecting device 300 further includes a pulling assembly 340 for pulling the connecting rod 210 to the tail 180. The pulling assembly 340 comprises a pull back rope 342 and a rope roller 341 rotatably disposed at the tail support column 332, one end of the pull back rope 342 is connected with the connecting rod 210, the other end of the pull back rope is wound on the rope roller 341, and the rope roller 341 is connected with a driving member for driving the pull back rope 342 to rotate so as to wind the pull back rope 342 or release the pull back rope 342. The driving member includes a first cable slave gear 343 and a second cable slave gear 344. The first pull rope slave gear 343 is coaxially and key-fixedly sleeved with the pull rope roller 341, the second pull rope slave gear 344 is rotatably connected with the tail support column 332 through a rotating shaft, and the second pull rope slave gear 344 is respectively meshed with the driving gear and the first pull rope slave gear 343.

After the scraper component 120 is mounted on the reversed loader body 100 from the tail 180, the lock 273 on the connecting rod 210 is connected with the chain ring, then the lower rope-collecting roller 230 rotates to collect the lower pulling rope 220, meanwhile, the upper motor reducer 331 drives the upper rope-collecting roller 310 and the rope-pulling roller 341 to rotate to release the upper pulling rope 320 and the pull-back rope 342, after the scraper component 120 moves to the head 170, a worker separates the lock 273 on the connecting rod 210 from the chain ring, then connects the chain ring with the lock 273 on the upper pulling rope 320, and the upper motor reducer 331 rotates to drive the upper rope-collecting roller 310 and the rope-pulling roller 341 to rotate, so that the upper pulling rope 320 can pull the scraper component 120 to move towards the tail 180, and the pull-back rope 342 pulls the connecting rod 210 to move towards the tail 180.

The implementation principle of the embodiment of the application is as follows: in an initial state, the upper pulling rope 320 is wound on the upper rope-retracting roller 310, the pull-back rope 342 is wound on the pull-rope roller 341, the connecting rod 210 moves to the tail 180, then a worker installs the scraper assembly 120 to the tail 180 and inserts the scraper 121 in the lower limiting groove 140, then the lower motor reducer 271 rotates to control the lower rope-retracting roller 230 to rotate, so that the lower rope-retracting roller 230 can wind the lower pulling rope 220 to enable the connecting rod 210 to drive the scraper assembly 120 to move towards the head 170, meanwhile, the upper motor reducer 331 rotates to drive the upper rope-retracting roller 310 to rotate through the driving gear and the driven gear 334 to release the upper pulling rope 320, and simultaneously the driving gear rotates from the gear 344 and the first rope-retracting gear 343 through the second rope so that the pull-rope roller 341 rotates and loosens the pull-back rope 342 until the connecting rod 210 moves to the head 170. After the connecting rod 210 moves to the nose 170, the lock 273 at the lower pulling rope 220 is separated from the scraper component 120, the lock 273 at the upper pulling rope 320 is connected with the chain ring, the upper motor reducer 331 rotates to drive the upper rope-retracting roller 310 to rotate through the driving gear and the driven gear 334 to wind the upper pulling rope 320, and simultaneously, the driving gear drives the second pulling rope driven gear 344 and the first pulling rope driven gear 343 through the second pulling rope to wind the pulling rope 341 back to the pulling rope 342, so that the connecting rod 210 can move to the tail 180. When the upper pulling rope 320 drives the scraper component 120 to move to the tail 180, the worker separates the lock 273 of the upper pulling rope 320 from the chain ring of the workpiece, and then the worker connects the head end and the tail end of the scraper component 120 through the chain ring.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.