CN111573155A

CN111573155A - Automatic conveying equipment for loading box of luggage security inspection machine

Info

Publication number: CN111573155A
Application number: CN202010457648.7A
Authority: CN
Inventors: 黄帆帆
Original assignee: Fuqing Jiatai Electronic Technology Co ltd
Current assignee: Fuqing Jiatai Electronic Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2020-08-25

Abstract

The invention discloses automatic conveying equipment for a loading box of a luggage security inspection machine, which comprises an equipment body, wherein a lifting table, a loading table, a security inspection table, two fetching tables and a power table are arranged on the equipment body from right to left, the equipment is a complete security inspection conveying line, a mechanism capable of recycling and uniformly storing used luggage boxes is arranged in front of a security inspection door and can be conveniently taken by passengers, a plurality of luggage platforms are arranged behind the security inspection door and can enable luggage passing through the security inspection to be respectively moved to each platform so as to enable the passengers to arrange the luggage, meanwhile, the luggage can be automatically recycled after all the articles in the luggage boxes are taken out, and as the platforms are not interfered with each other, a plurality of passengers can pass the security inspection simultaneously, and the waiting time during the security inspection is reduced.

Description

Automatic conveying equipment for loading box of luggage security inspection machine

Technical Field

The invention relates to the technical field of security inspection, in particular to automatic conveying equipment for a loading box of a luggage security inspection machine.

Background

In order to protect the safety of the passengers in trip, the security inspection of baggage is provided at airports or stations, particularly, the security inspection of airports needs to be performed by taking out and separating articles such as charge pal and notebook computers from handy articles, so that a lot of time is spent before a conveyor belt when the passengers pass through the security inspection, and the security inspection equipment only supports one person for operation, so that the passengers in the future need to wait for a long time, and even the boarding time is delayed.

Disclosure of Invention

Aiming at the technical defects, the invention provides automatic conveying equipment for a loading box of a luggage security inspection machine, which can overcome the defects.

The invention relates to automatic conveying equipment for a loading box of a luggage security inspection machine, which comprises a machine body, wherein a lifting table, a loading table, a security inspection table, two fetching tables and a power table are arranged on the machine body from right to left, the lifting table, the loading table, the security inspection table, the two fetching tables and the power table are connected through an upper conveying belt and a lower conveying belt, a return cavity is arranged in the machine body, a lifting cavity is arranged in the lifting table, a containing mechanism is arranged in the lifting cavity, a sorting mechanism is arranged on each of the two fetching tables, the sorting mechanism comprises a transmission shaft rotatably arranged in the fetching table, a transition roller is fixedly arranged on the transmission shaft, the upper conveying belt is sleeved on the transition roller, a driving bevel gear is fixedly arranged at the front end of the transmission shaft, a driven bevel gear is meshed with the upper side of the driving bevel gear, the driven bevel gear is fixedly arranged on, stretch out translation epaxial end get thing bench and fixed mounting have a translation gear, it has the translation frame to get thing bench side front and back slidable mounting, in the translation frame side left and right slidable mounting have can with the translation rack of right side meshing, translation rack right-hand member be provided with the translation spring that the translation frame is connected, translation rack right side fixed mounting has the trigger block, the trigger block right-hand member stretches into in the translation frame, symmetry fixed mounting has driven rack around the translation rack right side still, driven rack right-hand member outside meshing is connected with driven gear, two driven gear rotate respectively install in the translation frame front and back portion, driven gear right side meshing is connected with the stopper, two slidable mounting is in around the stopper difference in translation frame front and back portion.

Beneficially, arrangement mechanism still including set up in get the anterior recovery chamber of thing platform, retrieve the chamber rear side with it connects to return the chamber, it has the recovery slider to retrieve slidable mounting about in the chamber left wall, it is provided with to retrieve the slider downside get the spring that rises back that the thing platform is connected, it rotates to install to retrieve the slider rear side and retrieves the layer board, it is provided with gravity sensor to retrieve the layer board top, slidable mounting has anti-rotation block around in retrieving the slider, anti-rotation block with it blocks the spring to retrieve to be provided with between the slider, it is provided with around slidable mounting in to retrieve the slider below retrieve the dog in the chamber left wall, be provided with on the dog with get the spacing spring that the thing platform is connected, dog the place ahead get and be provided with the electro-magnet in the thing platform, it is provided with the unblock groove to retrieve chamber left side.

Beneficially, the receiving mechanism comprises a driven shaft rotatably mounted in the lower wall of the lifting cavity, a lower driven roller is fixedly mounted on the driven shaft, a lower driven sprocket and a driving bevel gear are further fixedly mounted on the driven shaft, the right side of the driving bevel gear is engaged and connected with a steering bevel gear, the steering bevel gear is fixedly mounted on a spline sleeve, the spline sleeve is rotatably mounted in the lifting platform, a spline shaft is mounted on a spline in the spline sleeve, the spline shaft is rotatably mounted in a movable plate, the movable plate is fixedly mounted on the lower side of a push plate, the push plate is slidably mounted in the right wall of the lifting cavity in a left-right mode, a thrust spring connected with the lifting platform is arranged on the right side of the push plate, a linking bevel gear is fixedly mounted on the spline shaft, and a transition bevel gear capable of being engaged, the transition bevel gear is fixedly arranged on a transition shaft, the transition shaft is rotatably arranged at the lower part of the lifting table, the lower end of the transition shaft is fixedly provided with a transmission bevel gear, the front side of the transmission bevel gear is connected with the lifting bevel gear in a meshing manner, the lifting bevel gear is fixedly arranged on the lifting shaft, the lifting shaft is rotatably arranged at the lower part of the lifting table, a wheel disc is fixedly arranged on the lifting bevel gear, the front end surface of the wheel disc is fixedly provided with a lifting rod, the lifting rod is arranged in a lifting block in a left-right sliding manner, the lifting block is arranged in the lower wall of the lifting table in an up-down sliding manner, the upper part of the lifting table is provided with a carrier block which is arranged in the front wall and the rear wall of the lifting table in a front-back sliding manner, the carrier block is provided with a carrier spring connected with the lifting table, and the carrier block, an upper driven roller is rotatably arranged in the lifting table, and the upper driven roller is sleeved with the upper conveying belt.

Beneficially, a motor is arranged in the power table, a power shaft is connected to the rear side of the motor, an upper driving roller is fixedly mounted on the power shaft, the upper driving roller is sleeved on the upper driving roller, an upper driving chain wheel and a power belt wheel are fixedly mounted on the power shaft, the upper driving chain wheel is connected with an upper driving chain wheel fixedly mounted on the transmission shaft through a driving chain, the power belt wheel is connected with a driving belt wheel through a power belt, the driving belt wheel is fixedly mounted on a reversing shaft, the reversing shaft is rotatably mounted in the power table, a reversing gear is fixedly mounted on the reversing shaft, a transmission gear is meshed and connected to the lower side of the reversing gear, the transmission gear is fixedly mounted on a recovery shaft, the recovery shaft is rotatably mounted in the power table, and a lower driving roller and a lower driving chain wheel are fixedly mounted on the recovery shaft, the lower driving roller is sleeved with the lower conveying belt, and the lower driving chain wheel is connected with a lower driven chain wheel fixedly installed on the driven shaft through a recovery chain.

The beneficial effects are that: this equipment is a complete security check transmission line, be provided with the mechanism that can retrieve and unified depositing the used luggage box in front of the security check door, and can make things convenient for the passenger to take, be provided with a plurality of luggage platforms behind the security check door, can let the luggage through the security check remove respectively to each platform on, let the passenger arrange in order, can also all take out the back automation in the article of luggage box simultaneously and retrieve luggage, because each platform mutually noninterfere, can have several passengers to pass through the security check simultaneously, latency when reducing the security check.

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.

FIG. 1 is a schematic structural view of an automatic conveying device for a loading box of a baggage inspection machine according to the present invention;

FIG. 2 is a schematic sectional view taken along the direction "A-A" in FIG. 1;

FIG. 3 is a schematic sectional view taken along the direction "B-B" in FIG. 2;

FIG. 4 is a schematic sectional view of the structure of FIG. 1 taken along the direction of "C-C";

FIG. 5 is a schematic sectional view taken along the direction "D-D" in FIG. 1;

FIG. 6 is an enlarged view of a portion "E" in FIG. 5;

FIG. 7 is a schematic sectional view of the structure of FIG. 5 taken along the direction "F-F".

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-7, for convenience of description, the following orientations will now be defined: 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 automatic transporting equipment for the loading box of the luggage security inspection machine comprises a machine body 10, wherein a lifting platform 11, a loading platform 12 for arranging luggage to be inspected for passengers, a security inspection platform 13 for security inspection of the luggage, two loading platforms 14 and a power platform 15 for providing power are arranged on the machine body 10 from right to left, the upper conveying belt 20 and the lower conveying belt 31 are connected, a return cavity 16 is arranged in the machine body 10, a lifting cavity 22 is arranged in the lifting platform 11, a containing mechanism capable of lifting and storing the used loading box 55 upwards is arranged in the lifting cavity 22, a mechanism capable of blocking the loading box 55 passing through security inspection and taking down the loading box 55 from the upper conveying belt 20 to facilitate the passengers to pick up and arrange the luggage conveniently is arranged on each of the two loading platforms 14, the loading box conveying equipment comprises a transmission shaft 59 rotatably arranged in the loading platform 14, the transition roller 60 is fixedly installed on the transmission shaft 59, the upper transmission belt 20 is sleeved on the transition roller 60, a driving bevel gear 61 is fixedly installed at the front end of the transmission shaft 59, the upper side of the driving bevel gear 61 is connected with a driven bevel gear 62 in a meshed mode, the driven bevel gear 62 is fixedly installed on a translation shaft 63, the translation shaft 63 is rotatably installed on the upper portion of the object taking table 14, the upper end of the translation shaft 63 extends out of the object taking table 14 and is fixedly provided with a translation gear 64, a translation frame 65 is installed above the object taking table 14 in a sliding mode in the front and back mode, a translation rack 66 capable of being meshed with the right side of the translation frame 64 is installed in the translation frame 65 in a sliding mode in the left and right mode, a translation spring 68 connected with the translation frame 65 is arranged at the right end of the translation rack 66, a trigger block 67 is fixedly installed, the translation rack 66 right side is still symmetry fixed mounting around has driven rack 69, the meshing of driven rack 69 right-hand member outside is connected with driven gear 70, two driven gear 70 rotate respectively install in translation frame 65 front and back portion, the meshing of driven gear 70 right side is connected with stopper 71, two stopper 71 respectively around slidable mounting in translation frame 65 front and back portion, stopper 71 can prevent to get into in the translation frame 65 dress thing box 55 breaks away from.

Beneficially, the arranging mechanism further comprises a recycling cavity 83 arranged at the front part of the object taking table 14, the rear side of the recycling cavity 83 is connected with the returning cavity 16, a recycling sliding block 72 is slidably mounted in the left wall of the recycling cavity 83 up and down, a back lifting spring 84 connected with the object taking table 14 is arranged at the lower side of the recycling sliding block 72, a recycling supporting plate 73 is rotatably mounted at the rear side of the recycling sliding block 72, a gravity sensor 74 is arranged above the recycling supporting plate 73, an anti-rotation block 75 capable of preventing the recycling supporting plate 73 from rotating is slidably mounted in the recycling sliding block 72 front and back, a blocking spring 76 is arranged between the anti-rotation block 75 and the recycling sliding block 72, a block 79 slidably mounted in the left wall of the recycling cavity 83 front and back is arranged below the recycling sliding block 72, a limit spring 80 connected with the object taking table 14 is arranged on the block 79, an electromagnet 81 is arranged in the object taking table 14 in front, an unlocking groove 82 which can allow the anti-rotation block 75 to be inserted is formed below the left wall of the recovery cavity 83.

Beneficially, the accommodating mechanism includes a driven shaft 33 rotatably installed in the lower wall of the lifting chamber 22, a lower driven roller 32 is fixedly installed on the driven shaft 33, a lower driven sprocket 34 and a driving bevel gear 37 are further fixedly installed on the driven shaft 33, a steering bevel gear 38 is engaged and connected to the right side of the driving bevel gear 37, the steering bevel gear 38 is fixedly installed on a spline housing 39, the spline housing 39 is rotatably installed in the lifting table 11, a spline shaft 40 is installed on the spline housing 39, the spline shaft 40 is rotatably installed in a movable plate 42, the movable plate 42 is fixedly installed on the lower side of a push plate 43, the push plate 43 is slidably installed in the right wall of the lifting chamber 22 left and right, a thrust spring 44 connected with the lifting table 11 is arranged on the right side of the push plate 43, an engaging bevel gear 41 is fixedly installed on the spline shaft 40, and a transition bevel gear capable of engaging with the lower side of the engaging bevel gear 41 45, it is on transition shaft 46 that it is fixed mounting to cross bevel gear 45, transition shaft 46 rotate install in lifting platform 11 lower part, transition shaft 46 lower extreme fixed mounting has drive bevel gear 47, drive bevel gear 47 front side meshing is connected with lifting bevel gear 48, lifting bevel gear 48 fixed mounting is on lifting shaft 49, lifting shaft 49 rotate install in lifting platform 11 lower part, fixed mounting has rim plate 50 on lifting bevel gear 48, fixed mounting has lifting rod 51 on the rim plate 50 front end face, lifting rod 51 is left and right slidable mounting in lifting block 52, lifting block 52 is slidable mounting from top to bottom in lifting platform 11 lower wall, lifting platform 11 upper portion be provided with around slidable mounting in the carrier block 53 in lifting platform 11 front and back wall, be provided with on the carrier block 53 with the carrier spring 54 that lifting platform 11 is connected, carrier block 53 can with the carrier box 55 that lifting block 52 lifted up in lifting platform 11 hangs An upper driven roller 21 is rotatably installed in the lifting table 11, and the upper driven roller 21 is sleeved with the upper conveyor belt 20.

Beneficially, a motor 17 is disposed in the power stage 15, a power shaft 18 is connected to the rear side of the motor 17, an upper driving roller 19 is fixedly mounted on the power shaft 18, the upper driving roller 19 is sleeved with the upper conveying belt 20, an upper driving sprocket 56 and a power pulley 23 are fixedly mounted on the power shaft 18, the upper driving sprocket 56 is connected with an upper driving sprocket 58 fixedly mounted on a transmission shaft 59 through a driving chain 57, the power pulley 23 is connected with a driving pulley 25 through a power belt 24, the driving pulley 25 is fixedly mounted on a reversing shaft 26, the reversing shaft 26 is rotatably mounted in the power stage 15, a reversing gear 27 is fixedly mounted on the reversing shaft 26, a transmission gear 28 is engaged and connected to the lower side of the reversing gear 27, the transmission gear 28 is fixedly mounted on a recovery shaft 29, and the recovery shaft 29 is rotatably mounted in the power stage 15, the recovery shaft 29 is fixedly provided with a lower driving roller 30 and a lower driving chain wheel 36, the lower driving roller 30 is sleeved with the lower conveying belt 31, and the lower driving chain wheel 36 is connected with a lower driven chain wheel 34 fixedly arranged on the driven shaft 33 through a recovery chain 35.

In an initial state, the lifting block 52 is at the lowest end, the recovery supporting plate 73 is at the highest end, the electromagnet 81 is in a power-off state, the stopper 79 blocks the recovery sliding block 72 to slide downwards, the rotation prevention block 75 blocks the recovery supporting plate 73 to rotate, the translation frame 65 is positioned above the upper conveying belt 20, the engagement bevel gear 41 is not meshed with the transition bevel gear 45, the thrust spring 44, the carrying spring 54, the translation spring 68, the limiting spring 80 and the return spring 84 are in a normal state, and the blocking spring 76 is in a stretching state; at the start of operation, the motor 17 is activated, causing the power shaft 18 to rotate, thereby causing the upper conveyor belt 20 to rotate via the upper drive drum 19 and the drive shaft 59 to rotate via the chain transmission of the upper drive sprocket 56 and the upper drive sprocket 58, thereby driving the translation shaft 63 to rotate through the meshing transmission of the driving bevel gear 61 and the driven bevel gear 62, driving the reverse rotating shaft 26 to rotate through the belt transmission of the power belt wheel 23 and the driving belt wheel 25 by the power shaft 18, so that the recovery shaft 29 is driven to rotate by the meshing transmission of the counter gear 27 and the transmission gear 28, so that the lower driving roller 30 drives the lower conveyer belt 31 to rotate, the recovery shaft 29 drives the driven shaft 33 to rotate through the chain transmission of the lower driving chain wheel 36 and the lower driven chain wheel 34, so that the spline housing 39 is rotated by the meshing transmission of the drive bevel gear 37 and the steering bevel gear 38, and the spline shaft 40 is rotated by the spline engagement with the spline shaft 40.

When a person passes through the security inspection, one article containing box 55 can be taken down from the article carrying block 53 and placed on the article containing table 12 to take out articles in the luggage, then the article containing box 55 is placed on the upper conveying belt 20, the article containing box 55 passes through the security inspection table 13 along the upper conveying belt 20 and reaches the position of the translation frame 65, the trigger block 67 is pushed to move, the translation rack 66 is driven to move and mesh with the translation rack 64, the translation shaft 63 drives the translation frame 65 to slide forwards through the meshing transmission of the translation shaft 64 and the translation rack 66, the article containing box 55 is driven to be above the recovery supporting plate 73, the translation rack 66 also drives the driven rack 69 to slide left while sliding left, the driven gear 70 is driven to rotate through the meshing transmission with the driven gear 70, the limit block 71 is driven to slide and extend out through the meshing transmission with the limit block 71 to prevent the article containing box 55 from being separated from the translation frame 65, and the person can take out the luggage from the article containing box 55 after the article containing box 55 reaches the position above the, when the gravity sensor 74 detects that the object box 55 is empty, the electromagnet 81 is energized to generate magnetism, so that the attraction block 79 slides forwards, the recovery slider 72 slides downwards under the action of the gravity of the object box 55, when the recovery slider 72 slides to the lowest position, the anti-rotation block 75 slides downwards into the unlocking groove 82 under the action of the blocking spring 76, so that the recovery supporting plate 73 rotates, the object box 55 slides downwards along the recovery supporting plate 73 and slides onto the lower conveying belt 31, then the recovery slider 72 rises and resets under the action of the lifting spring 84, the object box 55 enters the lifting table 11 along the lower conveying belt 31 until the object box 55 contacts the pushing plate 43 and pushes the object box to the right, so that the movable plate 42 slides to the right, the spline shaft 40 is driven to slide to the right, the engaging bevel gear 41 is engaged with the bevel gear 45, so that the spline shaft 40 is driven to rotate by the transmission of the bevel gear 41 and the transition bevel gear 45, the lifting shaft 49 is driven to rotate by the meshing transmission of the transmission bevel gear 47 and the lifting bevel gear 48, so that the wheel disc 50 is driven to rotate, the lifting block 52 is driven to lift by the lifting rod 51, the object containing box 55 is driven to lift, and the object containing box 55 is pushed to be above the object carrying block 53 when passing through the object carrying block 53.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a dress thing box automatic transportation equipment of luggage security check machine, includes the organism, its characterized in that: the machine body is provided with a lifting table, an object loading table, a security inspection table, two object taking tables and a power table from right to left, the parts are connected through an upper conveying belt and a lower conveying belt, a return cavity is formed in the machine body, a lifting cavity is formed in the lifting table, a containing mechanism is arranged in the lifting cavity, and an arranging mechanism is arranged on each of the two object taking tables; the arranging mechanism comprises a transmission shaft which is rotatably arranged in the object taking table, a transition roller is fixedly arranged on the transmission shaft, the upper conveying belt is sleeved on the transition roller, a driving bevel gear is fixedly arranged at the front end of the transmission shaft, the upper side of the driving bevel gear is meshed and connected with a driven bevel gear, the driven bevel gear is fixedly arranged on a translation shaft, the translation shaft is rotatably arranged on the upper part of the object taking table, the upper end of the translation shaft extends out of the object taking table and is fixedly provided with a translation gear, a translation frame is slidably arranged in front of and behind the object taking table, a translation rack which can be meshed with the right side is slidably arranged in the translation frame in the left and right direction, a translation spring connected with the translation frame is arranged at the right end of the translation rack, a trigger block is fixedly arranged at the right side of the, translation rack right side still front and back symmetry fixed mounting have driven rack, the meshing of driven rack right-hand member outside is connected with driven gear, two driven gear rotate respectively install in translation frame front and back portion, the meshing of driven gear right side is connected with the stopper, two sliding mounting is in around the stopper respectively in translation frame front and back portion.

2. The automatic transporting apparatus of the loading box of the baggage screening machine according to claim 1, wherein: the arrangement mechanism is characterized by further comprising a recovery cavity arranged in the front of the object taking table, the rear side of the recovery cavity is connected with the return cavity, a recovery slider is arranged on the left wall of the recovery cavity in an up-and-down sliding mode, a return spring connected with the object taking table is arranged on the lower side of the recovery slider, a recovery support plate is arranged on the rear side of the recovery slider in a rotating mode, a gravity sensor is arranged above the recovery support plate, a rotation prevention block is arranged on the front side and the rear side of the recovery slider in a sliding mode, a blocking spring is arranged between the rotation prevention block and the recovery slider, a stop block is arranged on the left wall of the recovery cavity in a sliding mode around the lower side of the recovery slider, a limiting spring connected with the object taking table is arranged on the stop block, an electromagnet is arranged in the object taking table, and.

3. The automatic transporting apparatus of the loading box of the baggage screening machine according to claim 1, wherein: the receiving mechanism comprises a driven shaft which is rotatably arranged in the lower wall of the lifting cavity, a lower driven roller is fixedly arranged on the driven shaft, a lower driven chain wheel and a driving bevel gear are also fixedly arranged on the driven shaft, the right side of the driving bevel gear is engaged and connected with a steering bevel gear, the steering bevel gear is fixedly arranged on a spline sleeve, the spline sleeve is rotatably arranged in the lifting platform, a spline shaft is arranged on a spline in the spline sleeve, the spline shaft is rotatably arranged in a movable plate, the movable plate is fixedly arranged on the lower side of a push plate, the push plate is slidably arranged in the right wall of the lifting cavity left and right, a thrust spring connected with the lifting platform is arranged on the right side of the push plate, a linking bevel gear is fixedly arranged on the spline shaft, and a transition bevel gear capable of being engaged, the transition bevel gear is fixedly arranged on a transition shaft, the transition shaft is rotatably arranged at the lower part of the lifting table, the lower end of the transition shaft is fixedly provided with a transmission bevel gear, the front side of the transmission bevel gear is connected with the lifting bevel gear in a meshing manner, the lifting bevel gear is fixedly arranged on the lifting shaft, the lifting shaft is rotatably arranged at the lower part of the lifting table, a wheel disc is fixedly arranged on the lifting bevel gear, the front end surface of the wheel disc is fixedly provided with a lifting rod, the lifting rod is arranged in a lifting block in a left-right sliding manner, the lifting block is arranged in the lower wall of the lifting table in an up-down sliding manner, the upper part of the lifting table is provided with a carrier block which is arranged in the front wall and the rear wall of the lifting table in a front-back sliding manner, the carrier block is provided with a carrier spring connected with the lifting table, and the carrier block, an upper driven roller is rotatably arranged in the lifting table, and the upper driven roller is sleeved with the upper conveying belt.

4. The automatic transporting apparatus of the loading box of the baggage screening machine according to claim 3, wherein: the power station is internally provided with a motor, the rear side of the motor is connected with a power shaft, the power shaft is fixedly provided with an upper driving roller, the upper driving roller is sleeved with the upper conveying belt, the power shaft is fixedly provided with an upper driving chain wheel and a power belt wheel, the upper driving chain wheel is connected with an upper driving chain wheel fixedly arranged on the transmission shaft through a driving chain, the power belt wheel is connected with a driving belt wheel through a power belt, the driving belt wheel is fixedly arranged on a reversing shaft, the reversing shaft is rotatably arranged in the power station, the reversing shaft is fixedly provided with a reversing gear, the lower side of the reversing gear is engaged and connected with a transmission gear, the transmission gear is fixedly arranged on a recovery shaft, the recovery shaft is rotatably arranged in the power station, and the recovery shaft is fixedly provided with a lower driving roller and a lower driving chain wheel, the lower driving roller is sleeved with the lower conveying belt, and the lower driving chain wheel is connected with a lower driven chain wheel fixedly installed on the driven shaft through a recovery chain.