CN112125001B

CN112125001B - Device capable of improving coal transportation efficiency

Info

Publication number: CN112125001B
Application number: CN202011299339.8A
Authority: CN
Inventors: 袁余乐
Original assignee: Inner Mongolia Jungar Banner Power Coal Industry Co ltd
Current assignee: Inner Mongolia Jungar banner Power Coal Industry Co.,Ltd.
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-11-23
Anticipated expiration: 2040-11-19
Also published as: CN112125001A

Abstract

The invention discloses a device capable of improving coal transportation efficiency, which comprises a transporter and a coal pouring cavity arranged in the transporter, wherein the bottom of the coal pouring cavity is fixedly provided with a pouring guide rail, the pouring guide rail is provided with a closed coal pouring box, three mine cars are used for transporting coal at the same time, and the functions of each mine car are different, so that the transportation efficiency is greatly improved, each mine car can automatically pour the coal after moving to a specified position without manual operation and motor driving, the transportation cost is saved, the device can pour the coal in a closed environment, the damage of coal dust discharge to the environment and workers in a mine is prevented, the spontaneous combustion phenomenon of the placed coal is prevented, the device can spray water on the coal to be transported, the spontaneous combustion of the coal during transportation is prevented, and the transportation safety is improved, meanwhile, the invention realizes the automation of the treatment process, greatly improves the treatment efficiency and saves the labor force.

Description

Device capable of improving coal transportation efficiency

Technical Field

The invention relates to a device capable of improving coal transportation efficiency, and mainly relates to the technical field of coal.

Background

After the coal mine is dug out, the coal needs to be placed in a mine car and then stacked at a fixed position, the coal needs to be waiting for the vehicle to take and deliver, generally, one coal mine car is transported at the present stage and is manually observed, the coal needs to be manually operated when the coal mine is dumped, the coal can be scattered and absorbed by a human body when the coal mine is dumped, the human body is injured, the dumped mine car needs to move back to the original position according to the original path, the next transportation is carried out, time and labor are wasted, the human body is injured, if a plurality of mine cars are adopted, a plurality of miners need to be equipped, the cost is greatly improved, and the invention improves the defects.

Disclosure of Invention

The invention aims to provide a device capable of improving coal transportation efficiency, and overcomes the problems.

The invention is realized by the following technical scheme.

The invention relates to a device capable of improving coal transportation efficiency, which comprises a transporter and a coal pouring cavity arranged in the transporter, wherein the bottom of the coal pouring cavity is fixedly provided with a pouring guide rail, the pouring guide rail is provided with a closed coal pouring box, the left and right ends of the closed coal pouring box are respectively provided with a movement through hole, the upper end of the movement through hole is respectively provided with a rotatable rotating hinge, the rotating hinges are respectively and fixedly provided with a rotating door, the rotating doors can rotate in the movement through holes along the rotating hinges, the closed coal pouring box is internally provided with a closed cavity, the rear wall of the closed cavity is provided with a part cavity, the left and right walls of the part cavity are rotatably connected with a linkage rotating shaft, the linkage rotating shaft is fixedly provided with a wide gear, the right side of the wide gear is fixedly provided with a linkage bevel gear, the bottom of the part cavity is rotatably provided with a transmission shaft, the transmission bevel gear is fixedly arranged on the transmission shaft, the transmission bevel gear is in meshing transmission with the linkage bevel gear, a transmission gear is fixedly arranged below the transmission bevel gear, the transmission gear and the wide gear extend forwards to the outside of the part cavity, a sealing plate is fixedly arranged on the right side of the coal pouring cavity, a motion groove is arranged in the sealing plate, a top pressing block is arranged in the motion groove, a running supplement guide rail is fixedly arranged on the top pressing block, the top pressing block and the running supplement guide rail can move up and down along the motion groove, the top pressing block is elastically connected with the bottom of the coal pouring cavity through a supporting spring, a lifting groove is arranged on the left side of the coal pouring cavity, a lifting block is arranged in the lifting groove, a return flight supplement guide rail is fixedly arranged on the lifting block, the lifting block and the return flight supplement guide rail can move up and down along the lifting groove, a lifting cavity is arranged at the bottom of the lifting groove, and the lifting block is elastically connected with the lifting cavity through a lifting spring, a coal storage cavity is arranged below the coal pouring cavity, a coal discharge pipe is fixedly arranged below the coal storage cavity, a support is fixedly arranged on the coal discharge pipe, a telescopic rod is fixedly arranged on the support, a movable baffle is fixedly arranged on the telescopic rod, the lower end of the coal discharge pipe can be sealed by the movable baffle, a left pulley cavity is arranged on the left side of the coal storage cavity, a left pulley is arranged in the left pulley cavity, a right pulley cavity is arranged on the right side of the coal storage cavity, a right pulley is arranged in the right pulley cavity, the bottom of the top pressing block is connected with a connecting pull wire, the connecting pull wire is connected with the bottom of the lifting block through the surface of the right pulley and the left pulley, a transport guide rail is fixedly arranged above the conveyor, a transport mine car is placed on the transport guide rail, tires are arranged at the bottom of the transport mine car and can move along the transport guide rail, and a turnover cavity is arranged in the transport mine car, the utility model discloses a coal mine underground mining truck, including upset chamber, conveying mine car, damping spring, sealing plate, conveyer, limit gate, loading and unloading car, it is equipped with the axis of rotation to rotate on the wall of upset chamber left and right sides, the fixed semicircle tube that emptys that is equipped with in the axis of rotation, it is equipped with the semicircle rack to rotate to empty the semicircle tube external fixation, it is equipped with the heavy object guide block to rotate to empty the semicircle tube bottom fixed, the conveying mine car right-hand member is equipped with the spring groove, the spring inslot is equipped with damping spring, damping spring is used for working as the conveying mine car with shock attenuation after the sealing plate collision is handled, the conveyer below is equipped with ground, ground with the fixed limit gate that is equipped with between the conveyer, be equipped with the limit gate passageway in the limit gate, limit gate left end is fixed is equipped with watering device, subaerial the loading and unloading car, the receipt coal chamber with the coal pipe bottom opening is corresponding.

Furthermore, after the transportation mine car filled with coal moves to the operation supplement guide rail on the top pressure block, the dumped transportation mine car moves to the return supplement guide rail on the lifting block, the top pressure block moves downwards along the movement groove due to the fact that the loaded transportation mine car is heavier than the empty transportation mine car, a supplement opening is formed in the top of the coal dumping cavity, due to the fact that the connection pull wire is loosened, the lifting spring elastically supports the lifting block to move upwards to the supplement opening, the loaded transportation mine car continues to move to be located on the dump guide rail, the empty transportation mine car continues to move to be located on the return transportation guide rail, and transportation cost is reduced.

Further, the left end of the transportation mine car is fixedly provided with a soft extrusion block, the rear side of the right end of the transportation mine car is fixedly provided with a fixed rack, when the transportation mine car moves leftwards along the dumping guide rail, the rotary door is clockwise pushed along the rotary hinge by the soft extrusion block, so that the transportation mine car can enter and pass through the closed cavity, the fixed rack can be meshed with the transmission gear to drive the rotary dumping semi-cylinder to overturn coal in the rotary dumping semi-cylinder to the coal storage cavity, and the heavy object guide block is used for overturning the rotary dumping semi-cylinder to guide to an initial state.

Furthermore, the rotating door seals the moving through hole and the closed cavity, so that dust generated when coal is dumped is in the closed cavity, coal dust is prevented from being damaged, oxygen can be blocked in the closed environment, and the spontaneous combustion phenomenon of stored coal in the coal storage cavity below the closed environment is prevented.

Furthermore, the water spraying device can spray water to the coal in the loading and unloading truck which passes through the height limiting channel, so that the coal dust is prevented from floating, and the spontaneous combustion phenomenon of the coal during transportation can be prevented.

The invention has the beneficial effects that: the invention uses three mine cars to transport coal at the same time, and each mine car has different functions, thereby greatly improving the transport efficiency, each mine car can automatically pour coal after moving to a designated position, manual operation and motor driving are not needed, the transport cost is saved, the invention can pour coal in a closed environment, the coal dust is prevented from being discharged to harm the environment and workers in the mine, and the spontaneous combustion phenomenon of the placed coal is prevented, and the invention can spray water to the coal to be transported, thereby preventing the spontaneous combustion of the coal during transportation, improving the transport safety, realizing the automation of the treatment process, greatly improving the treatment efficiency and saving the labor force.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Fig. 5 is a schematic diagram of the structure D-D in fig. 2.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The device capable of improving coal transportation efficiency, which is described with reference to fig. 1-5, includes a transporter 10 and a coal pouring cavity 11 disposed in the transporter 10, a pouring guide rail 63 is fixedly disposed at the bottom of the coal pouring cavity 11, a closed coal pouring box 31 is disposed on the pouring guide rail 63, movement through holes 62 are disposed at both left and right ends of the closed coal pouring box 31, rotatable rotating hinges 32 are disposed at upper ends of the movement through holes 62, rotating doors 33 are fixedly disposed on the rotating hinges 32, the rotating doors 33 can rotate in the movement through holes 62 along the rotating hinges 32, a closed cavity 61 is disposed in the closed coal pouring box 31, a part cavity 54 is disposed on a rear wall of the closed cavity 61, a linkage rotating shaft 56 is rotatably connected to left and right walls of the part cavity 54, a wide gear 55 is fixedly disposed on the linkage rotating shaft 56, a linkage bevel gear 57 is fixedly disposed on a right side of the wide gear 55, a transmission shaft 59 is rotatably arranged at the bottom of the part cavity 54, a transmission bevel gear 58 is fixedly arranged on the transmission shaft 59, the transmission bevel gear 58 is in meshing transmission with the linkage bevel gear 57, a transmission gear 60 is fixedly arranged below the transmission bevel gear 58, the transmission gear 60 and the wide gear 55 both extend forwards to the outside of the part cavity 54, a closing plate 13 is fixedly arranged at the right side of the coal pouring cavity 11, a moving groove 14 is arranged in the closing plate 13, a top pressing block 15 is arranged in the moving groove 14, an operation supplement guide rail 16 is fixedly arranged on the top pressing block 15, the top pressing block 15 and the operation supplement guide rail 16 can move up and down along the moving groove 14, the top pressing block 15 is elastically connected with the bottom of the coal pouring cavity 11 through a supporting spring 17, a lifting groove 41 is arranged at the left side of the coal pouring cavity 11, a lifting block 40 is arranged in the lifting groove 41, and a return supplement guide rail 39 is fixedly arranged on the lifting block 40, lifting block 40 the back journey supplements guide rail 39 can be followed lift groove 41 up-and-down motion, lift groove 41 bottom is equipped with lift chamber 36, lifting block 40 with lift chamber 36 is within a definite time through lifting spring 37 elastic connection, it is equipped with deposits coal chamber 27 to fall 11 below in the coal chamber, deposit the fixed coal discharging pipe 26 that is equipped with in coal chamber 27 below, the fixed support 30 that is equipped with on coal discharging pipe 26, the fixed telescopic link 29 that is equipped with on support 30, the fixed movable baffle 28 that is equipped with on the telescopic link 29, movable baffle 28 can with the coal discharging pipe 26 lower extreme seals, it is equipped with left pulley chamber 34 to deposit coal chamber 27 left side, be equipped with left pulley 35 in left pulley chamber 34, it is equipped with right pulley chamber 19 to deposit coal chamber 27 right side, be equipped with right pulley 20 in the right pulley chamber 19, top briquetting 15 bottom is connected with connects acting as go-between 18, connect acting as go-between 18 and pass through right pulley 20, The surface of the left pulley 35 is connected with the bottom of the lifting block 40, a transportation guide rail 12 is fixedly arranged above the transporter 10, a transportation mine car 43 is placed on the transportation guide rail 12, a tire 45 is arranged at the bottom of the transportation mine car 43, the tire 45 can move along the transportation guide rail 12, a turnover cavity 53 is arranged in the transportation mine car 43, a rotating shaft 46 is rotatably arranged on the left wall and the right wall of the turnover cavity 53, a rotating dumping semi-circular cylinder 47 is fixedly arranged on the rotating shaft 46, a semi-circular rack 48 is fixedly arranged outside the rotating dumping semi-circular cylinder 47, a heavy object guide block 49 is fixedly arranged at the bottom of the rotating dumping semi-circular cylinder 47, a spring groove 50 is arranged at the right end of the transportation mine car 43, a damping spring 51 is arranged in the spring groove 50, the damping spring 51 is used for damping treatment after the transportation mine car 43 collides with the closing plate 13, and the ground 25 is arranged below the transporter 10, a height limiting door 21 is fixedly arranged between the ground 25 and the conveyor 10, a height limiting channel 22 is arranged in the height limiting door 21, a water spraying device 23 is fixedly arranged at the left end of the height limiting door 21, a loading and unloading vehicle 24 is placed on the ground 25, and a coal receiving cavity of the loading and unloading vehicle 24 corresponds to an opening at the bottom of the coal discharge pipe 26.

Advantageously, after the transporting mine car 43 filled with coal moves to the running supplementary rail 16 on the top pressing block 15, the dumped transporting mine car 43 moves to the return supplementary rail 39 on the lifting block 40, the top pressing block 15 moves downwards along the moving groove 14 because the loaded transporting mine car 43 is heavier than the empty transporting mine car 43, the top of the coal pouring cavity 11 is provided with a supplementary port 42, the lifting spring 37 supports the lifting block 40 to move upwards to the supplementary port 42 due to the loosening of the connecting pull wire 18, so that the loaded transporting mine car 43 continues to move on the dumping rail 63, and the empty transporting mine car 43 continues to move on the transporting rail 12 on the return, thereby reducing the transportation cost.

Advantageously, a flexible pressing block 44 is fixedly arranged at the left end of the transport tramcar 43, a fixed rack 52 is fixedly arranged at the rear side of the right end of the transport tramcar 43, when the transport tramcar 43 moves leftwards along the dumping guide rail 63, the flexible pressing block 44 can push the rotating door 33 clockwise along the rotating hinge 32, so that the transport tramcar 43 can enter and pass through the closed cavity 61, the fixed rack 52 can be meshed with the transmission gear 60 to enable the rotating dumping semi-cylinder 47 to overturn to dump coal therein into the coal storage cavity 27, and the weight guide block 49 is used for guiding the overturned rotating dumping semi-cylinder 47 to an initial state.

Advantageously, the revolving door 33 closes the moving through hole 62 and the closed cavity 61, so that dust generated when coal is dumped is in the closed cavity 61, thereby preventing coal dust from being damaged, and the closed environment can block oxygen, thereby preventing the spontaneous combustion phenomenon of stored coal in the coal storage cavity 27 below.

Advantageously, the sprinkler 23 is capable of spraying water on the coal in the lift truck 24 that is to pass through the height-limiting passage 22, preventing coal dust from drifting and preventing spontaneous combustion of the coal during transportation.

Sequence of mechanical actions of the whole device: the tire 45 drives the transportation mine car 43 to move along the transportation guide rail 12, the supplied transportation mine car 43 is at the rightmost end, the full transportation mine car 43 is at the rightmost end of the transportation guide rail 12, the emptied transportation mine car 43 is at the left end of the dumping guide rail 63, the full transportation mine car 43 stops on the running replenishing guide rail 16 on the top pressing block 15 after colliding with the closing plate 13, the damping spring 51 has the damping effect, meanwhile, the empty transportation mine car 43 moves to the returning replenishing guide rail 39 on the lifting block 40, the top pressing block 15 extrudes the supporting spring 17 to move downwards along the moving groove 14 due to the gravity effect, the connecting pull wire 18 is loosened, the lifting block 40 moves to the replenishing port 42 along the lifting groove 41 under the elastic force of the lifting spring 37, the connecting pull wire 18 is changed into a tight state again through the movement of the right pulley 20 and the left pulley 35, and the full transportation mine car 43 continues to move to the dumping guide rail 63, the empty transport tramcar 43 moves to the return transport guide rail 12 at the same time, the jacking block 15 is jacked back to the original position again under the elastic force of the supporting spring 17, the connecting pull wire 18 is stretched, the lifting block 40 is pulled by the rolling of the right pulley 20 and the left pulley 35 to extrude the lifting spring 37 to move back to the original position, the full transport tramcar 43 continues to move left, the soft extrusion block 44 collides with the rotating door 33, the rotating door 33 rotates clockwise along the rotating hinge 32, the full transport tramcar 43 is positioned in the closed cavity 61, the rotating door 33 rotates back to the original position along the rotating hinge 32 under the action of gravity, the full transport tramcar 43 continues to move left through the part cavity 54, the fixed rack 52 drives the transmission gear 60 to rotate inwards, the transmission gear 60 drives the transmission shaft 59 and the transmission bevel gear 58 to rotate inwards, the transmission bevel gear 58 drives the meshed linkage bevel gear 57 to rotate upwards, the linkage bevel gear 57 drives the linkage rotating shaft 56, The wide gear 55 rotates upwards, the wide gear 55 drives the meshed semicircular rack 48 and the rotary dumping semicircular cylinder 47 to rotate outwards, so that the internal coal is dumped into the coal storage cavity 27, the transportation mine car 43 continues to move leftwards and is disengaged from the transmission gear 60, the rotary dumping semicircular cylinder 47 rotates back to the original shape under the action of the gravity of the weight guide block 49, when the transportation mine car 43 continues to move leftwards and passes through the rotary door 33 on the left side, a new full-load transportation mine car 43 moves to the rightmost end of the transportation guide rail 12, the three transportation mine cars 43 repeat movement for transportation, the manual dumping step is reduced, the efficiency is higher, the damage of coal dust to the environment is prevented, when the coal in the coal storage cavity 27 needs to be transported, the telescopic rod 29 drives the loading and unloading baffle 28 to contract leftwards, the coal enters the car 24 through the coal discharge pipe 26, the telescopic rod 29 drives the moving baffle 28 to move rightwards to seal the bottom of the coal discharge pipe 26 after the loading is completed, when the head of the loading and unloading truck 24 passes through the height limiting channel 22, the water spraying device 23 is started to spray water to coal in the loading and unloading truck 24, so that the spontaneous combustion phenomenon of the coal during transportation is prevented.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a can improve coal conveying efficiency's device, includes the conveyer and set up in the coal cavity of falling in the conveyer, its characterized in that: the coal pouring device is characterized in that a pouring guide rail is fixedly arranged at the bottom of the coal pouring cavity, a closed coal pouring box is arranged on the pouring guide rail, motion through holes are formed in the left end and the right end of the closed coal pouring box, rotary hinges capable of rotating are arranged at the upper ends of the motion through holes, rotary doors are fixedly arranged on the rotary hinges and can rotate in the motion through holes along the rotary hinges, a closed cavity is arranged in the closed coal pouring box, a part cavity is arranged on the rear wall of the closed cavity, linkage rotary shafts are rotatably connected to the left wall and the right wall of the part cavity, wide gears are fixedly arranged on the linkage rotary shafts, linkage bevel gears are fixedly arranged on the right sides of the wide gears, a transmission shaft is rotatably arranged at the bottom of the part cavity, transmission bevel gears are fixedly arranged on the transmission shaft and are in meshing transmission with the linkage bevel gears, and transmission gears are fixedly arranged below the transmission bevel gears, the transmission gear and the wide gear extend forwards to the outside of the part cavity, a sealing plate is fixedly arranged on the right side of the coal pouring cavity, a moving groove is arranged in the sealing plate, a top pressing block is arranged in the moving groove, a running supplementary guide rail is fixedly arranged on the top pressing block, the top pressing block and the running supplementary guide rail can move up and down along the moving groove, the top pressing block is elastically connected with the bottom of the coal pouring cavity through a supporting spring, a lifting groove is arranged on the left side of the coal pouring cavity, a lifting block is arranged in the lifting groove, a return supplementary guide rail is fixedly arranged on the lifting block, the lifting block and the return supplementary guide rail can move up and down along the lifting groove, a lifting cavity is arranged at the bottom of the lifting groove, the lifting block is elastically connected with the lifting cavity through a lifting spring, a coal storing cavity is arranged below the coal storing cavity, and a coal discharging pipe is fixedly arranged below the coal storing cavity, a bracket is fixedly arranged on the coal discharge pipe, a telescopic rod is fixedly arranged on the bracket, a movable baffle is fixedly arranged on the telescopic rod, the lower end of the coal discharge pipe can be sealed by the movable baffle, a left pulley cavity is arranged on the left side of the coal storage cavity, a left pulley is arranged in the left pulley cavity, a right pulley cavity is arranged on the right side of the coal storage cavity, a right pulley is arranged in the right pulley cavity, the bottom of the top pressing block is connected with a connecting pull wire, the connecting pull wire is connected with the bottom of the lifting block through the right pulley and the surface of the left pulley, a transportation guide rail is fixedly arranged above the conveyor, a transportation mine car is placed on the transportation guide rail, a tire is arranged at the bottom of the transportation mine car and can move along the transportation guide rail, a turnover cavity is arranged in the transportation mine car, a rotating shaft is rotatably arranged on the left wall and the right wall of the turnover cavity, and a rotating turnover semi-circular cylinder is fixedly arranged on the rotating shaft, a semicircular rack is fixedly arranged outside the rotary dumping semicircular cylinder, a weight guide block is fixedly arranged at the bottom of the rotary dumping semicircular cylinder, a spring groove is formed in the right end of the transport tramcar, a damping spring is arranged in the spring groove and used for damping treatment after the transport tramcar collides with the sealing plate, the ground is arranged below the conveyor, a height limiting door is fixedly arranged between the ground and the conveyor, a height limiting channel is formed in the height limiting door, a water spraying device is fixedly arranged at the left end of the height limiting door, a loading and unloading vehicle is placed on the ground, and a coal receiving cavity of the loading and unloading vehicle corresponds to an opening in the bottom of the coal discharge pipe;

after the transport tramcar filled with coal moves to the operation supplement guide rail on the top pressure block, the dumped transport tramcar moves to the return supplement guide rail on the lifting block, the top pressure block moves downwards along the movement groove because the loaded transport tramcar is heavier than the empty transport tramcar, a supplement port is formed in the top of the coal dumping cavity, the lifting spring elastically supports the lifting block to move upwards to the supplement port due to loosening of the connecting pull wire, the loaded transport tramcar continues to move on the dump guide rail, and the empty transport tramcar continues to move on the transport guide rail in a return stroke, so that the transportation cost is reduced;

the left end of the transportation mine car is fixedly provided with a soft extrusion block, the rear side of the right end of the transportation mine car is fixedly provided with a fixed rack, when the transportation mine car moves leftwards along the dumping guide rail, the soft extrusion block can push the rotating door clockwise along the rotating hinge, so that the transportation mine car can enter and pass through the closed cavity, the fixed rack can be meshed with the transmission gear for transmission, so that the rotating dumping semi-cylinder is overturned to dump coal in the coal storage cavity, and the weight guide block is used for guiding the overturned rotating dumping semi-cylinder to an initial state;

the moving through hole and the closed cavity are sealed by the rotating door, so that dust generated when coal is dumped is located in the closed cavity, the harm of coal dust is prevented, oxygen can be blocked in the sealed environment, and the spontaneous combustion phenomenon of stored coal in the coal storage cavity below the sealed environment is prevented;

the water spraying device can spray water to the coal in the loading and unloading truck which passes through the height limiting channel, so that the coal dust is prevented from floating, and the spontaneous combustion phenomenon of the coal during transportation can be prevented; the fixed rack drives the transmission gear to rotate inwards, the transmission gear drives the transmission shaft and the transmission bevel gear to rotate inwards, the transmission bevel gear drives the meshed linkage bevel gear to rotate upwards, the linkage bevel gear drives the linkage rotating shaft and the wide gear to rotate upwards, the wide gear drives the meshed semicircular rack and the rotary dumping semicircular cylinder to rotate outwards, and therefore the coal inside the coal storage cavity is dumped into the coal storage cavity.