High-layer compacted material unloading machine, flat warehouse unloading system and unloading method

Abstract

The present invention discloses a high-layer compacted material discharging machine, a flat warehouse discharging system and a discharging method, comprising a main frame extending in the horizontal direction and capable of moving in the vertical direction, a discharging active sprocket and a driven sprocket are respectively provided at both ends of the main frame, a discharging chain is wrapped between the two discharging sprockets, a plurality of scraper assemblies are evenly fixed along the circumference of the discharging chain, and an arch-breaking device is installed on the top of the main frame, which can make the high-layer compacted material in front of the discharging machine collapse in advance. A pit extending in the vertical direction is provided in the middle of the flat warehouse floor width direction, a total conveyor extending in the full length direction of the pit is provided at the bottom of the pit, and discharging machines for high-layer compacted materials are respectively provided on both sides of the pit. The arch-breaking auger is inserted into the compacted material at a high position in front in advance, rotates while reciprocating in the horizontal direction, and cuts a horizontal continuous fracture on the cliff surface of the upper material layer in front to make it collapse downward in advance, and the discharging machine conveys the material to the pit. The present invention can avoid the formation of a cliff to damage the discharging machine.

Description

Technical Field

[0001] The present invention relates to a warehouse unloading machine, in particular to a warehouse unloading machine for high-layer compacted materials; the present invention also relates to a flat warehouse unloading system and a flat warehouse unloading method, belonging to the technical field of bulk material unloading. Background Art

[0002] The yard of a flat warehouse is rectangular, and the width of the yard is relatively wide, often reaching 30 to 40 meters, and the depth sometimes reaches more than 200 meters. Materials need to be discharged through a special warehouse discharge machine. The Chinese authorized patent with publication number CN 205346364U discloses a track-type warehouse discharge machine applied to the bottom of a room-type warehouse, including a travel drive motor, an auger guard support sleeve, an auger guard baffle assembly, an auger spiral drive, an intermediate support wheel, an auger spiral drive guard bracket, an auger assembly, a tail bearing seat, a travel track, a track cleaning shoe, a travel sprocket, and a cleaning plate. The travel track is fixed on the track ring beams on both sides of the flat warehouse, and the travel sprocket is meshed with the travel track. The two sides of the auger assembly are respectively installed on the tail bearing seat, and the tail bearing seat is assembled and fixed on the fixed bracket of the track cleaning shoe. The travel drive motor is positioned at the bottom of the flat warehouse. On both sides of the warehouse discharge machine, it is fixed on the track cleaning slide through a connecting bracket, the auger guard support sleeve is fixedly installed on the auger guard baffle assembly by bolts, the auger guard baffle assembly is sleeved on the auger assembly, and cleaning plates are installed on the upper and lower sides of the auger guard baffle assembly. The auger spiral drive is connected to the auger assembly through a shaft, the blades on the auger assemblies on both sides of the auger spiral drive rotate in opposite directions, and the auger blades are serrated. The auger spiral drive is fixedly installed on the auger spiral drive guard bracket, and an intermediate walking support wheel is installed under the auger spiral drive guard bracket, and the intermediate walking support wheel is supported on the steel rail above the ground.

[0003] The warehouse unloading machine can unload materials with good fluidity such as soybeans. When the flat warehouse stores highly compacted materials such as soybean meal, the materials will be severely compacted after being piled up in the warehouse, losing fluidity and becoming a whole similar to concrete. It is difficult for the above-mentioned warehouse unloading machine to complete the unloading task. The main problems are as follows:

[0004] 1. In order to increase the storage capacity per unit area, the storage unit sometimes piles up to more than 10 meters. When the soybean meal and other compacted materials are unloaded, the materials above cannot flow downwards, and the unloading machine advances along the ground for a distance, which will cause the material pile to have a cliff with a cross-sectional height of nearly 10 meters. As the bottom is hollowed out, the material layer above will collapse in a concentrated manner, and in serious cases, the unloading machine equipment will be damaged.

[0005] 2. When the warehouse discharger discharges the high-layer compacted material pile, the large and small material layers collapse during the entire discharge process, resulting in the inability of the warehouse discharger to form continuous and stable discharge, which seriously affects the feeding stability of the subsequent production line.

[0006] 3. The warehouse unloading machine can only work in a fixed flat warehouse, and there is only one walking system. Due to the need for the warehouse unloading function, the speed ratio of the walking reducer is very large, and it is impossible to achieve rapid transfer without increasing costs. When the warehouse unloading machine has finished unloading from the middle of the flat warehouse to one end, it needs to return to the middle to unload to the other end. If it still transfers at the speed of unloading, the time cost is too high.

[0007] 4. The existing warehouse unloading machine moves on the steel track. Due to the large temperature difference inside the flat warehouse, the moisture in the air is very easy to liquefy on the steel track. In addition, the high protein content in soybean meal causes the soybean meal to be very easy to compact on the steel track. This will cause the walking roller of the warehouse unloading machine to easily climb onto the material layer when moving forward. In severe cases, it may cause the warehouse unloading machine to deviate from the track, causing unavoidable damage to the warehouse unloading machine and related equipment.

[0008] 5. The existing flat warehouse is a high-humidity, high-dust working environment, and usually different materials (soybean meal with different protein content) are piled up with a layer height of 10 meters on the front and back sides of the warehouse unloading machine, which needs to meet the needs of two-way warehouse unloading. This working environment is difficult for the mobile power supply of the warehouse unloading machine. Summary of the invention

[0009] The primary purpose of the present invention is to overcome the problems existing in the prior art and provide a bin discharger for compacted materials with a high material layer, which can break the high material layer in front of the bin discharger in advance, causing the compacted material pile in the high material layer to collapse in advance, thereby avoiding the formation of a cliff and damaging the bin discharger equipment.

[0010] In order to solve the above technical problems, the present invention discloses a high-layer compacted material discharge machine, comprising a main frame extending laterally and capable of moving longitudinally, wherein a discharge driving sprocket and a discharge driven sprocket are respectively provided at both ends of the main frame, a discharge chain is wrapped around the discharge driven sprocket and the discharge driving sprocket, a plurality of scraper assemblies are evenly fixed along the circumference of the discharge chain, and an arch breaking device is installed on the top of the main frame, wherein the arch breaking device can cause the high-layer compacted material in the forward direction of the discharge machine to collapse in advance.

[0011] As an improvement of the present invention, the arch breaking device includes an arch breaking platform, the front and rear sides of the bottom of the arch breaking platform are respectively supported in the platform guide rails by platform rollers and can translate laterally along the platform guide rails, and the platform guide rails are fixed on the front and rear sides of the upper part of the main frame.

[0012] As a further improvement of the present invention, both ends of the arch-breaking platform are respectively provided with arch-breaking augers which are cantilevered and inserted into the front material layer. While the arch-breaking augers rotate to discharge materials toward the large end, they move back and forth laterally with the arch-breaking platform, and cut horizontal continuous fractures in the front upper material layer to cause it to collapse prematurely.

[0013] As a further improvement of the present invention, the large ends of the arch-breaking auger are respectively supported in the arch-breaking bearing seats and are respectively connected to the output ends of the arch-breaking reduction boxes. The arch-breaking reduction boxes are respectively driven by arch-breaking motors, and each arch-breaking bearing seat and arch-breaking reduction box is respectively fixed on the arch-breaking platform.

[0014] As a further improvement of the present invention, a translation drive mechanism is installed in the middle of the arch breaking platform, and the translation drive mechanism includes a translation drive bracket and a translation drive reducer. The front and rear ends of the translation drive bracket are supported on the arch breaking platform, and the translation drive reducer is fixed on the translation drive bracket. The input end of the translation drive reducer is driven by a translation motor, and a translation drive sprocket is installed on the output shaft of the translation drive reducer. Translation redirecting sprockets are respectively provided on the left and right sides of the translation drive sprocket. The translation chain is Ω-shaped and passes around the translation redirecting sprocket and the translation drive sprocket in turn, and the two ends of the translation chain are respectively fixed to the two ends of the arch breaking platform through a tensioning mechanism.

[0015] As a further improvement of the present invention, the spacing between the arch-breaking augers on the same side is equal to half the length of the warehouse discharger, and two groups of the arch-breaking augers are symmetrically arranged on the front and rear sides of the arch-breaking platform.

[0016] As a further improvement of the present invention, arch-breaking stirring rods are fixed to the roots of the large-end blades of each arch-breaking auger in a centrally symmetrical manner.

[0017] As a further improvement of the present invention, a walking mechanism for carrying the warehouse discharge machine forward or backward in the longitudinal direction is installed on the main frame, and the walking mechanism includes a walking reducer installed in the middle of the main frame, and both ends of the output shaft of the walking reducer are respectively connected to the walking drive shaft through a coupling, and the other ends of the two walking drive shafts respectively drive the walking roller assemblies to walk along the corresponding longitudinal tracks; the walking reducer is provided with a high-speed ratio discharging walking input end and a low-speed ratio fast transition input end, and the discharging walking input end is connected to the output shaft of the walking reduction motor through a discharging split elastic coupling, and the fast transition input end is connected to the output shaft of the fast transition motor through a transition split elastic coupling.

[0018] The yoke is annularly fixed to the chassis and the yoke is secured on the chassis to the chassis by means of a pair of sprockets and a bearer, and the sprocket is secured on the chassis to the chassis by means of a pair of sprockets.

[0019] As a further improvement of the present invention, a main frame bottom plate is provided at the bottom of the main frame, the bottom of the walking bracket is fixed above the main frame bottom plate, the track cleaning block is connected to the bottom of the main frame bottom plate by a cleaning block screw and a floating gap is provided therebetween, a distance sleeve and a distance gasket are sleeved on the periphery of the cleaning block screw, the distance sleeve is supported between the main frame bottom plate and the distance gasket and matches the gap with the screw hole of the track cleaning block.

[0020] As a further improvement of the present invention, a pulley driving frame is fixed above one end of the main frame close to the wall, and the pulley driving frame is provided with a driving sleeve that can slide laterally, and the front and rear sides of the driving sleeve are respectively provided with oblique limit clamps, and the lower end of the limit clamps is fixedly connected to the top of the pulley driving frame; a pulley track extending in the longitudinal direction is fixed to the upper part of the wall, and the pulley track is provided with a pulley assembly that can move horizontally, and the bottom of the front and rear ends of the pulley assembly is respectively hinged with oblique rods, and the lower ends of the two oblique rods are respectively hinged at the front and rear sides of the driven hinge seat, and the driven hinge seat is fixed to the upper outer wall of the driven sleeve, and the lower end of the driven sleeve passes through between the two limit clamps and is inserted downward into the driving sleeve for fixing; a warehouse out machine cable is suspended by a sliding hanger below the pulley track, and the free end of the warehouse out machine cable is fixed on the pulley assembly, and the free cable descends along the driven sleeve to supply power to the warehouse out machine.

[0021] As a further improvement of the present invention, a double-row large discharging sprocket is coaxially connected to the top of the discharging active sprocket through a flange, and the double-row large discharging sprocket is transmission-connected to the double-row small discharging sprocket through a double-row discharging chain, and the double-row small discharging sprocket is fixed at the output end of the discharging reduction box, and the discharging reduction box is fixed on the main frame and driven by the discharging motor; the scraper assembly includes a vertical bracket fixed on the chain link of the discharging chain in the middle, and the upper and lower ends of the vertical bracket are respectively fixed with horizontal bracket plates extending horizontally outward, and the free ends of the upper and lower horizontal bracket plates are respectively connected with scraper comb plates extending outward; chain constraint rollers are respectively fixed to the top and bottom of the vertical bracket, and the chain constraint rollers are respectively located in the discharging chain constraint track, and the openings of the upper and lower discharging chain constraint tracks face each other and are fixed to the outer wall of the main frame.

[0022] Another object of the present invention is to overcome the problems existing in the prior art and provide a flat warehouse unloading system, which can break the high material layer in front of the unloading machine in advance, so that the compacted material pile in the high material layer collapses in advance, avoiding the formation of cliffs and damaging the unloading machine equipment.

[0023] In order to solve the above technical problems, the present invention provides a flat warehouse unloading system, in which a pit extending along the longitudinal direction is provided in the middle of the flat warehouse floor width direction, a main conveyor extending along the full length of the pit is provided at the bottom of the pit, and the high material layer compacted material unloading machines as mentioned above are respectively provided on the ground on both sides of the pit.

[0024] Another object of the present invention is to overcome the problems existing in the prior art and provide a flat warehouse unloading method, which can break the high material layer in front of the unloading machine in advance, so that the compacted material pile in the high material layer collapses in advance, avoiding the formation of a cliff and damaging the unloading machine equipment.

[0025] In order to solve the above technical problems, a flat warehouse unloading method of the present invention adopts the unloading machine for compacted materials in high material layers as mentioned above. The end of the arch-breaking auger on the unloading machine is inserted into the compacted materials at a high position in front in advance, and rotates while moving back and forth horizontally. At the same time, as the unloading machine moves forward, a horizontal continuous fracture is cut on the cliff surface of the upper material layer in front to make it collapse downward in advance, forming a low material pile in front of the unloading machine. As the unloading machine moves forward, the discharging chain drives the scraper assembly to transport the material to the middle pit along the width direction.

[0026] As an improvement of the present invention, when the warehouse unloading machine moves forward to discharge materials, the input end of the travel reducer is driven by the travel reducer motor through the discharging split elastic coupling to achieve low-speed travel; after the discharging of materials at one end of the flat warehouse is completed, the elastic body of the discharging split elastic coupling is removed, and it is switched to be driven by the fast transition motor through the transition split elastic coupling, and the warehouse unloading machine moves backward and then moves forward to the other end of the flat warehouse at high speed.

[0027] Compared with the prior art, the present invention has achieved the following beneficial effects: 1. The high material layer about 3 meters ahead of the warehouse discharge machine can be broken in advance, so that the compacted materials at high places collapse and fall in advance; at the same time, the collapsed materials in advance will form a relatively low continuous bulk material pile in front of the warehouse discharge machine, and the warehouse discharge machine can easily discharge these low continuous material piles;

[0028] 2. The free end of the arch-breaking auger discharges materials in the direction of the warehouse discharge machine, which can make the materials flow evenly to the front side of the warehouse discharge machine, making it easy to discharge materials at a uniform speed, and can transport materials to the next production line more continuously and stably, ensuring stable feeding of the production line;

[0029] 3. It is convenient for the warehouse discharge machine to realize fully automatic unmanned continuous and safe discharge, reduce the number of people entering and exiting, reduce the risk of safety accidents, and protect the health of personnel;

[0030] 4. When the warehouse unloading machine has only one set of travel drive system, it can not only meet the low speed requirement when unloading, but also realize the rapid transfer of the warehouse unloading machine;

[0031] 5. In a high humidity and high dust environment, the compacted materials on the steel track can be shoveled before the walking rollers to reduce the impact of the compaction of materials such as soybean meal on the steel track on the movement of the warehouse delivery machine; the track cleaning block can float up and down to adapt to the flatness error of the flat warehouse floor or the unevenness of the track surface, which can ensure that the compacted materials on the track can be cleaned up throughout the process, avoid the risk of derailment, and ensure the safety of the warehouse delivery machine moving along the longitudinal track;

[0032] 6. The pulley power supply device is safe and reliable to use under the existing working conditions of high humidity, high dust and materials piled on both sides of the warehouse discharge machine. Since the material layer along the axis of the bungalow warehouse is relatively high and the material layer near the wall is slightly lower, the pulley track and pulley assembly are located high on the wall, and power is obtained from high altitude through the pulley assembly to avoid interference of materials on the mobile power supply device. The sleeve holder slides horizontally to make up for the lateral error between the end of the warehouse discharge machine and the pulley track. Driven by the pulley drive frame, the pulley assembly can move in both directions along the pulley track, realizing efficient, convenient and safe two-way mobile power supply function, which has obvious advantages compared with ground trough power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The accompanying drawings are only provided for reference and explanation and are not intended to limit the present invention.

[0034] Figure 1 It is a three-dimensional diagram of the high-layer compacted material discharging machine of the present invention;

[0035] Figure 2 It is a three-dimensional diagram of the discharging drive mechanism of the present invention;

[0036] Figure 3 This is an end view of the high-layer compacted material discharging machine of the present invention;

[0037] Figure 4 It is a three-dimensional diagram of the discharging driving sprocket part of the present invention;

[0038] Figure 5 It is a three-dimensional enlarged view of the scraper assembly in the present invention;

[0039] Figure 6 It is a three-dimensional diagram of the walking mechanism in the present invention;

[0040] Figure 7 is an enlarged view of the walking roller assembly of the present invention;

[0041] Figure 8 It is a cross-sectional view of the track cleaning block in the present invention being floatingly connected below the bottom plate of the main frame;

[0042] Fig. 9 It is a three-dimensional diagram of the arch breaking device in the present invention;

[0043] Fig.10 It is a three-dimensional enlarged view of the arch-breaking reduction box part of the present invention;

[0044] Fig.11 It is a three-dimensional diagram of the power taking device in the present invention;

[0045] Fig.12 This is a working state diagram of the flat warehouse unloading system of the present invention;

[0046] In the figure: 1. Main frame; 1a. Main frame bottom plate; 1b. Platform guide rail; 1c. Discharging chain restraint rail;

[0047] 2. Discharging drive mechanism; 2a. Discharging motor; 2b. Discharging reduction box; 2c. Discharging double-row small sprocket; 2d. Discharging double-row chain; 2e. Discharging double-row large sprocket; 2f. Discharging driving sprocket; 2g. Discharging chain; 2h. Discharging driven sprocket;

[0048] 3. Scraper assembly; 3a. Vertical bracket; 3b. Horizontal bracket plate; 3c. Scraper comb plate; 3d. Chain restraint roller;

[0049] 4. Arch breaking device; 4a. Arch breaking platform; 4b. Platform roller; 4c. Arch breaking motor; 4d. Arch breaking reduction box; 4e. Arch breaking bearing seat; 4f. Arch breaking auger; 4g. Arch breaking stirring rod;

[0050] 5. Translation drive mechanism: 5a. Translation drive bracket; 5b. Translation motor; 5c. Translation drive reducer; 5d. Translation drive sprocket; 5e. Translation chain; 5f. Tensioning mechanism;

[0051] 6. Travel mechanism; 6a. Travel reduction motor; 6b. Discharging split elastic coupling; 6c. Quick transfer motor; 6d. Transfer split elastic coupling; 6e. Travel reduction gear; 6f. Travel drive shaft;

[0052] 7. Travel roller assembly; 7a. Travel bracket; 7b. Travel drive sprocket; 7c. Travel redirecting sprocket; 7d. Travel roller; 7e. Travel chain;

[0053] 8. Track cleaning block; 8a. Scraping ramp; 8b. Cleaning block screw; 8c. Distance sleeve; 8d. Distance spacer;

[0054] 9. Pulley power supply device; 9a. Pulley drive frame; 9b. Drive sleeve; 9c. Limit clamp frame; 9d. Driven sleeve; 9e. Driven hinge seat; 9f. Diagonal rod; 9g. Pulley assembly; 9g1. Limit clamp; 9h. Sliding hanger; 9i. Warehouse machine cable; 9j. Pulley track;

[0055] 10. Ground rail groove; 11. Longitudinal track; 12. Ground pit. DETAILED DESCRIPTION

[0056] In the following description of the present invention, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not mean that the device must have a specific direction.

[0057] For the convenience of description and understanding, the longitudinal depth of the flat warehouse is the "front" and "back" directions, and the width of the flat warehouse, that is, the horizontal direction of the warehouse unloading machine, is the "left" and "right" directions.

[0058] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0060] like Figures 1 to 5 and Fig.12As shown, the high-layer compacted material unloading machine of the present invention comprises a main frame 1 extending along the width direction of the bunker, and the main frame 1 is equipped with a material unloading drive mechanism 2, a scraper assembly 3, an arch breaking device 4, a walking mechanism 6 and a pulley power supply device 9. For a bunker with a pit 12 extending along the longitudinal axis, a unloading machine is provided on each of the left and right sides of the pit 12. For a bunker with a pit 12 close to a side wall, the main frame 1 is located on one side of the pit 12.

[0061] The discharging drive mechanism 2 includes a discharging motor 2a, a discharging reduction box 2b, a discharging driving sprocket 2f, a discharging chain 2g and a discharging driven sprocket 2h. The discharging motor 2a, the discharging reduction box 2b and the discharging driving sprocket 2f are located at one end of the main frame 1, and the discharging driven sprocket 2h is located at the other end of the main frame 1. The discharging chain 2g is wrapped between the discharging driving sprocket 2f and the discharging driven sprocket 2h. A plurality of scraper assemblies 3 are evenly installed along the circumference of the discharging chain 2g. The output shaft of the discharging motor 2a is connected to the input end of the discharging reduction box 2b, and the output end of the discharging reduction box 2b is installed with a discharging double-row small sprocket 2c, and a discharging double-row large sprocket 2e is coaxially installed above the discharging driving sprocket 2f. The discharging double-row small sprocket 2c is transmission-connected to the discharging double-row large sprocket 2e through the discharging double-row chain 2d.

[0062] The discharging motor 2a drives the discharging reduction box 2b to operate, and the discharging reduction box 2b drives the discharging double-row large sprocket 2e to rotate through the discharging double-row small sprocket 2c and the discharging double-row chain 2d, and the discharging driving sprocket 2f rotates synchronously with the discharging double-row large sprocket 2e, and drives the discharging driven sprocket 2h to rotate through the discharging chain 2g, and the discharging driven sprocket 2h is provided with a tensioning mechanism to adjust the tightness of the discharging chain 2g. While the discharging chain 2g rotates, the materials are sent into the pit 12 in the horizontal direction through each scraper assembly 3.

[0063] The scraper assembly 3 includes a vertical bracket fixed in the middle on the link of the discharge chain, and horizontal bracket plates extending horizontally outward are fixed to the upper and lower ends of the vertical bracket respectively, and the free ends of the upper and lower horizontal bracket plates are respectively connected to scraper comb plates extending outward, and the inner part of the scraper comb plate is the scraper, and a plurality of comb teeth are distributed on the vertical outer edge of the scraper. As the discharge chain 2g rotates, the comb teeth of the upper and lower scraper comb plates cut into the material layer in front, so as to facilitate raking off the compacted material, and then the broken material is scraped away by the scraper closer to the inside and sent to the pit 12.

[0064] Chain restraint rollers are fixed to the top and bottom of the vertical bracket, respectively. The chain restraint rollers are located in the discharge chain restraint tracks, and the openings of the upper and lower discharge chain restraint tracks face each other and are fixed to the outer wall of the main frame. The upper and lower chain restraint rollers can keep the discharge chain 2g in a vertical state and withstand the deflection torque caused by the scraper comb plate raking the material.

[0065] like Figure 6 to Figure 7As shown, the traveling mechanism 6 includes a main frame 1, a traveling reducer 6e, a traveling drive shaft 6f, a traveling roller assembly 7 and a track cleaning block 8. The main frame 1 extends in the transverse direction, that is, along the width direction of the flat warehouse. The traveling reducer 6e is installed in the middle of the main frame 1. The traveling roller assemblies 7 are symmetrically arranged on both sides of the longitudinal axis of the main frame. The two ends of the output shaft of the traveling reducer 6e are respectively connected to the traveling drive shafts 6f. The other ends of the two traveling drive shafts 6f drive the traveling roller assemblies 7 to travel through couplings, thereby carrying the main frame 1 to move forward or backward along the longitudinal direction of the flat warehouse.

[0066] The travel reducer 6e uses dual input shafts and dual output shafts, one of which is used as a low-speed ratio fast transition input end, and the other is used as a high-speed ratio discharge travel input end during normal discharge. The discharge travel input end is connected to the output shaft of the travel reducer motor 6a through the discharge split elastic coupling 6b, and the fast transition input end is connected to the output shaft of the fast transition motor 6c through the transition split elastic coupling 6d.

[0067] When the warehouse unloading machine is unloading normally, it moves slowly along the depth direction of the flat warehouse to unload materials, and the travel speed is very small. The speed ratio of the travel reducer 6e is 18000. It is only necessary to install the elastomer on the unloading split elastic coupling 6b between the unloading walking input end of the travel reducer and the travel reducer motor 6a. The elastomer of the transfer split elastic coupling 6d is not installed, which can meet the unloading needs.

[0068] When the warehouse unloading machine has cleared the materials at one end of the flat warehouse, it needs to increase the forward speed when moving in the opposite direction. The speed ratio of the travel reducer 6e is 755; it is only necessary to install the elastomer on the transition split elastic coupling 6d between the fast transition input end of the travel reducer and the fast transition motor 6c, and remove the elastomer on the discharging split elastic coupling 6b. The walking speed is increased by more than 50 times than that during discharging, so that the warehouse unloading machine can achieve rapid transition.

[0069] The travel roller assembly 7 includes a travel bracket 7a, the bottom of which is fixed above the main frame bottom plate 1a, and the main frame bottom plate 1a is located at the bottom of the main frame 1. A travel drive sprocket 7b, two travel redirection sprockets 7c and four travel rollers 7d are respectively installed on the travel bracket 7a, the travel drive sprocket 7b is installed on the travel drive shaft 6f, the left and right sides of the travel drive sprocket 7b are supported on the travel bracket 7a through bearing seats, the front and rear sides of the travel bracket 7a are respectively installed with travel roller shafts, the middle of the travel roller shafts are respectively installed with travel redirection sprockets 7c, and the left and right sides of the travel redirection sprocket 7c are installed with travel rollers 7d in pairs.

[0070] The walking chain 7e is laid in the ground rail groove 10. After the walking chain 7e bypasses the bottom of the front walking redirection sprocket 7c, it bypasses the top of the walking drive sprocket 7b upwards, and then bypasses the bottom of the rear walking redirection sprocket 7c downwards and extends backwards. The shoulders on both sides of the ground rail groove 10 are respectively provided with longitudinal rails 11, and each walking roller 7d is pressed on the longitudinal rails 11 respectively. The front of each front walking roller 7d and the rear of the rear walking roller 7d are symmetrically installed with a track cleaning block 8. The middle part of the bottom wall of the track cleaning block 8 is provided with a cleaning block groove in the longitudinal direction as an escape channel for the walking chain 7e.

[0071] The top of each track cleaning block 8 is respectively connected to the bottom of the traveling bracket 7a in a floating manner. The track cleaning block 8 slides on the longitudinal tracks 11 on both sides of the ground rail groove 10 by its own weight. The forward end of each track cleaning block 8 is respectively provided with a scraping slope 8a.

[0072] When the walking roller 7d rolls forward on the longitudinal track 11, the scraping bevel 8a of the front track cleaning block 8 can effectively clear the compacted materials on the longitudinal track 11 in advance; when the walking roller 7d moves backward along the longitudinal track 11, the scraping bevel 8a of the rear track cleaning block 8 plays a scraping role; in this way, no matter in which direction the warehouse discharge machine moves, the track cleaning block 8 can effectively clear the compacted materials on the longitudinal track 11 before the walking roller 7d, avoiding the risk of derailment caused by the walking roller 7d climbing onto the material layer during the movement, and greatly improving the influence of the compaction of soybean meal on the steel track on the movement of the warehouse discharge machine.

[0073] Due to the flatness error of the flat warehouse floor or the uneven track surface, the fixed installation of the track cleaning block 8 is prone to interference or too large a gap with the track surface. To solve this problem, a floating gap is provided between the track cleaning block 8 and the main frame bottom plate 1a, and four stepped holes are provided at the bottom of the track cleaning block 8. The cleaning block screws 8b pass through the stepped holes of the track cleaning block 8 to connect the track cleaning block 8 to the bottom of the main frame bottom plate 1a.

[0074] like Figure 8 As shown, the outer periphery of the cleaning block screw 8b is covered with a distance sleeve 8c and a distance washer 8d, the distance washer 8d abuts against the lower end of the cleaning block screw 8b, and the distance sleeve 8c is supported between the main frame bottom plate 1a and the distance washer 8d and matches the gap of the screw hole of the track cleaning block 8. In this way, the track cleaning plate will automatically fall on the longitudinal track 11 under the action of its own weight to continuously shovel away the hardened materials on the track. If the warehouse unloading machine travels to a low-lying place on the ground, the track cleaning plate can float upward on the outer periphery of each distance sleeve 8c, and still maintain good contact with the track surface, ensuring a good shoveling effect throughout the process.

[0075] like Fig. 9 , Fig.10As shown, the arch-breaking device 4 includes a main frame 1, an arch-breaking platform 4a, a platform roller 4b, an arch-breaking motor 4c, an arch-breaking reduction box 4d, an arch-breaking bearing seat 4e, an arch-breaking auger 4f, and an arch-breaking stirring rod 4g. The main frame 1 extends in the horizontal direction and can move in the longitudinal direction. The arch-breaking platform 4a is located at the top of the main frame 1. The left and right ends of the arch-breaking platform 4a are respectively provided with arch-breaking augers 4f extending outward in the longitudinal direction and discharging materials in the direction of the main frame. Two arch-breaking augers 4f on the same side constitute a group. For a warehouse discharge machine with two-way discharging, two groups of arch-breaking augers 4f are symmetrically arranged on the front and rear sides of the arch-breaking platform 4a. The four arch-breaking augers 4f are arranged in an axisymmetric manner, which balances the overturning moment caused by the cantilevered extension of the arch-breaking augers 4f, which is conducive to the stability of the center of gravity of the warehouse discharge machine. When discharging from the middle of the bunkhouse to one side, the two arch-breaking screw dragons 4f on the front side play a role; when discharging from the middle of the bunkhouse to the other side, the two arch-breaking screw dragons 4f on the rear side play a role, and the original backward direction serves as the new forward direction.

[0076] The roots of the arch-breaking auger 4f are supported in the arch-breaking bearing seat 4e and are connected to the output end of the arch-breaking reduction box 4d, respectively. The arch-breaking reduction box 4d is driven by the arch-breaking motor 4c. The arch-breaking bearing seat 4e and the arch-breaking reduction box 4d are respectively fixed on the arch-breaking platform 4a, and the tail ends of the front and rear arch-breaking motors 4c face each other and are close to the transverse axis of the arch-breaking platform 4a. The arch-breaking bearing seat 4e is located on the outside away from the transverse axis of the arch-breaking platform. When working, each arch-breaking motor 4c drives the arch-breaking auger 4f to rotate through the arch-breaking reduction box 4d, and the free end of the arch-breaking auger 4f discharges materials in the direction of the warehouse discharge machine, so that the materials can flow evenly to the front side of the warehouse discharge machine, which is convenient for realizing uniform speed discharge.

[0077] The front and rear sides of the bottom of the arch-breaking platform 4a are supported in the platform guide rails by platform rollers 4b respectively and can be translated laterally along the platform guide rails, that is, reciprocated along the width direction of the flat warehouse. The platform guide rails are fixed to the front and rear sides of the upper part of the main frame 1. The upper and lower edges of the front and rear platform rollers 4b are restricted between the platform guide rails, which not only play a supporting and guiding role, but also can resist the overturning moment of the arch-breaking platform 4a to keep it moving smoothly.

[0078] The two warehouse unloading machines move forward synchronously, and four 4-meter-long arch-breaking augers 4f extend in the width direction of the flat warehouse. The arch-breaking augers 4f are conical augers with the small end facing outward to reduce weight and improve stress conditions; the length of the arch-breaking augers 4f can be adjusted according to the height of the pile.

[0079] The distance between the left and right arch-breaking augers 4f on each warehouse unloading machine is half the length of the main frame 1, so that the arch-breaking platform 4a only needs to be translated horizontally by half the length of the main frame 1, and two arch-breaking augers 4f can complete the arch-breaking of half the material layer of the flat warehouse.

[0080] A translation driving mechanism 5 is installed in the middle of the arch breaking platform 4a, and the translation driving mechanism 5 includes a translation driving bracket 5a and a translation driving reducer 5c. The front and rear ends of the translation driving bracket 5a are supported on the arch breaking platform 4a, and the translation driving reducer 5c is fixed on the translation driving bracket 5a. The input end of the translation driving reducer 5c is connected to the output shaft of the translation motor 5b. A translation driving sprocket 5d is installed on the output shaft of the translation driving reducer 5c. Translation redirecting sprockets 5e are respectively provided on the left and right sides of the translation driving sprocket 5d. The translation chain 5f is Ω-shaped and passes around the translation redirecting sprocket 5e on the left side in turn, then passes around the translation driving sprocket 5d upwards, and then passes around the translation redirecting sprocket 5e on the left side downwards, so as to increase the wrap angle of the translation driving sprocket 5d and improve the reliability of the transmission.

[0081] The two ends of the translation chain 5f are respectively fixed to the two end brackets of the arch breaking platform 4a through the tensioning mechanism 5g, so as to ensure good meshing with the translation driving sprocket 5d and the translation redirecting sprocket 5e. The translation motor 5b drives the translation driving sprocket 5d to rotate through the translation driving reducer 5c. Since the translation chain 5f is fixed, the translation driving sprocket 5d drives the entire arch breaking platform 4a to move horizontally. The cables of the translation motor 5b and each arch breaking motor 4c are laid on the drag chain assembly, and the drag chain assembly follows the expansion and contraction of the arch breaking platform 4a.

[0082] When the warehouse discharge machine is working, the discharge chain 2g carries the scraper assemblies 3 to rotate along the length direction of the main frame 1, that is, the width direction of the bunk house, and discharges the materials on the upper half of the ground to the pit 12, and is sent out of the warehouse by the total output machine in the pit 12.

[0083] As the warehouse unloading machine slowly moves along the depth direction of the bunk house to discharge materials, the arch-breaking auger 4f mounted on the arch-breaking platform 4a moves back and forth along the half-width direction of the bunk house on the arch-breaking platform 4a. As the warehouse unloading machine moves forward, the free end of the arch-breaking auger 4f slowly inserts into the material pile with a high material layer and severe compaction. When the arch-breaking auger 4f is inserted into the material pile to a certain depth, for example, 30 to 50 cm, a continuous fracture along the width direction of the bunk house will be drawn on the cross section of the entire high material layer material pile, with a depth of about 30 to 50 cm or more. At this time, the high material layer material pile will partially collapse in advance, forming a continuous low material pile in front of the warehouse unloading machine, thereby preventing the warehouse unloading machine equipment from being smashed by the huge amount of materials that collapse in a concentrated manner. At the same time, as the warehouse unloading machine continues to move forward, these low material piles that collapse in front of the warehouse unloading machine will be stably transported by the warehouse unloading machine to the main conveyor in the pit 12.

[0084] Materials within the height range of the scraper assembly 3 can be transported horizontally to the pit 12, and materials higher than the scraper assembly 3 will still bridge above it. Therefore, arch-breaking stirring rods 4g are fixed centrally and symmetrically at the root of the blades of each arch-breaking auger 4f. The arch-breaking stirring rods 4g rotate with the arch-breaking auger 4f, and the rotation radius is much larger than that of the arch-breaking auger 4f. The materials above the front side of the scraper assembly 3 can be stirred and crushed to eliminate the bridging phenomenon and make the loose materials fall as much as possible and be sent into the pit 12 by the scraper assembly 3.

[0085] like Fig.11 As shown, the power taking device includes a main frame 1, a pulley driving frame 9a, a driving sleeve 9b, a limit clamp frame 9c, a driven sleeve 9d, an inclined rod 9f and a pulley assembly 9g. The pulley driving frame 9a is fixed above one end of the main frame 1 close to the wall, and a driving sleeve 9b is provided on the pulley driving frame 9a. The middle part of the driving sleeve 9b is fixed in the sleeve holder, and the front and rear ends of the sleeve holder are respectively sleeved on the transverse connecting rod, and the other end of the transverse connecting rod is inserted into the pin hole sleeve of the pulley driving frame 9a. The end of the transverse connecting rod extends from the pin hole sleeve and is inserted with a split pin, so that the driving sleeve 9b can be translated on the transverse connecting rod for a distance with the sleeve holder to adapt to the transverse error between the pulley track 9j and the pulley driving frame 9a.

[0086] The driving sleeve 9b extends vertically to facilitate the insertion of the driven sleeve 9d. The front and rear sides of the driving sleeve 9b are respectively provided with oblique limit clamps 9c. The limit clamps 9c can be channel steel, angle steel or other profiles. The smooth surfaces of the two limit clamps 9c face each other, which is convenient for providing limit on the front and rear sides of the driven sleeve 9d. The lower end of the limit clamp 9c is fixed on the pulley driving frame 9a.

[0087] A pulley track 9j extending in the longitudinal direction is fixed to the upper part of the wall. The pulley track 9j can be an I-beam and its height is higher than the top of the material layer. A pulley assembly 9g that can be moved horizontally is provided on the pulley track 9j. The cross section of the pulley assembly 9g is U-shaped. Pulley rollers are installed in pairs on the facing end surfaces of the two vertical walls. The pulley rollers on both sides are supported between the upper and lower rail surfaces of the pulley track 9j. The front and rear sides of the pulley assembly 9g are respectively provided with dust shoveling mechanisms for cleaning the pulley track 9j. The dust shoveling mechanisms remove the dust accumulated on the roller rail surface of the pulley track 9j in advance, reduce the running resistance of the pulley rollers, and avoid the pulley rollers from getting stuck or derailing.

[0088] The bottom of the front and rear ends of the pulley assembly 9g are respectively hinged with inclined rods 9f through the pulley hinge seat and the pulley pin shaft. The lower ends of the two inclined rods 9f are respectively hinged at the front and rear sides of the driven hinge seat 9e. The driven hinge seat 9e is fixed to the upper outer wall of the driven sleeve 9d. The lower end of the driven sleeve 9d passes through between the two limit clamps 9c. The two limit clamps 9c keep the driven sleeve 9d in a vertical state; the lower end of the driven sleeve 9d is inserted into the driving sleeve 9b and fixed.

[0089] The cable 9i of the warehouse machine is suspended below the pulley track 9j through the sliding hanger 9h. The sliding hanger 9h can slide along the pulley track 9j. The cable 9i of the warehouse machine at the hanging point is fixed, and the cable 9i of the warehouse machine between adjacent hanging points is in a relaxed state. A limit clamp 9g1 is provided in the middle of the pulley assembly 9g to fix the free end of the warehouse machine cable 9i, and a section of the free cable at the tail end goes down along the driven sleeve 9d to supply power to the warehouse machine.

[0090] When the warehouse discharge machine moves to discharge materials, the pulley driving frame 9a moves horizontally with the main frame 1, and drives the driving sleeve 9b to move forward or backward, and the driven sleeve 9d inserted in the driving sleeve 9b moves horizontally. The limit clamps 9c on both sides provide support for the driven sleeve 9d to prevent it from tilting forward or backward. The upper end of the driven sleeve 9d drives the pulley assembly 9g to move horizontally along the pulley track 9j through the driven hinge seat 9e and two inclined rods 9f, thereby achieving the purpose of moving the warehouse discharge machine and taking power.

[0091] like Fig.12 As shown, in the flat warehouse unloading system of the present invention, a pit 12 extending in the longitudinal direction is provided in the middle of the flat warehouse floor in the width direction, a general conveyor extending in the full length direction of the pit is provided at the bottom of the pit 12, and high material layer compacted material unloading machines are provided on the ground on both sides of the pit 12. The unloading machines move along the direction of the pit 12 and unload the materials from both ends in the width direction to the pit 12.

[0092] In the flat warehouse unloading method of the present invention, the end of the arch-breaking auger 4f on the unloading machine is inserted into the compacted material at a high position in front in advance, and it rotates and moves back and forth horizontally. At the same time, as the unloading machine moves forward, a horizontal continuous fracture is cut on the cliff surface of the upper material layer in front to make it collapse downward in advance, forming a low material pile in front of the unloading machine. As the unloading machine moves forward, the unloading chain 2g drives the scraper assembly 3 to transport the material to the middle pit 12 along the width direction.

[0093] When the warehouse unloading machine moves forward to unload materials, the input end of the travel reducer 6e is driven by the travel reducer motor 6a through the unloading split elastic coupling 6b to achieve low-speed travel; after the unloading of materials at one end of the flat warehouse is completed, the elastic body of the unloading split elastic coupling 6b is removed, and it is switched to be driven by the fast transfer motor 6c through the transfer split elastic coupling 6d, and the warehouse unloading machine moves backward and then moves forward to the other end of the flat warehouse at high speed.

[0094] The above is only a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention, but does not limit the scope of patent protection of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. In addition to the above embodiments, the present invention may have other implementation modes without departing from the spirit and scope of the present invention. The present invention may also have various changes and improvements, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the attached claims and their equivalents. The technical features not described in the present invention can be realized by or using existing technologies, which will not be repeated here.

Claims

1. A high-layer compacted material discharging machine, comprising a main frame extending in the transverse direction and capable of moving in the longitudinal direction, wherein a discharging driving sprocket and a discharging driven sprocket are respectively provided at both ends of the main frame, a discharging chain is wrapped between the discharging driven sprocket and the discharging driving sprocket, and a plurality of scraper assemblies are evenly fixed along the circumference of the discharging chain, characterized in that: The top of the main frame is equipped with an arch breaking device, which can cause the high material layer of compacted materials in the forward direction of the warehouse discharge machine to collapse in advance; The arch breaking device comprises an arch breaking platform, the front and rear sides of the bottom of the arch breaking platform are respectively supported in the platform guide rails by platform rollers and can be laterally translated along the platform guide rails, and the platform guide rails are fixed to the front and rear sides of the upper part of the main frame; Both ends of the arch-breaking platform are respectively provided with arch-breaking augers which are cantilevered and inserted into the material layer in front. The arch-breaking augers rotate to discharge materials toward the large end and move back and forth horizontally with the arch-breaking platform, so as to make a continuous horizontal fracture in the upper material layer in front to make it collapse in advance. The large ends of the arch-breaking auger are respectively supported in the arch-breaking bearing seats and are respectively connected to the output ends of the arch-breaking reduction boxes. The arch-breaking reduction boxes are respectively driven by arch-breaking motors. Each arch-breaking bearing seat and the arch-breaking reduction box are respectively fixed on the arch-breaking platform. A translation driving mechanism is installed in the middle of the arch-breaking platform, and the translation driving mechanism includes a translation driving bracket and a translation driving reducer. The front and rear ends of the translation driving bracket are supported on the arch-breaking platform, and the translation driving reducer is fixed on the translation driving bracket. The input end of the translation driving reducer is driven by a translation motor, and a translation driving sprocket is installed on the output shaft of the translation driving reducer. Translation redirecting sprockets are respectively provided on the left and right sides of the translation driving sprocket. The translation chain is Ω-shaped and passes around the translation redirecting sprocket and the translation driving sprocket in turn, and the two ends of the translation chain are respectively fixed to the two ends of the arch-breaking platform through a tensioning mechanism; The spacing between the arch-breaking augers on the same side is equal to half the length of the warehouse discharger, and two groups of the arch-breaking augers are symmetrically arranged on the front and rear sides of the arch-breaking platform; the roots of the large end blades of each arch-breaking augers are respectively fixed with arch-breaking stirring rods in a centrally symmetrical manner.

2. The high-layer compacted material discharging machine according to claim 1 is characterized by: The main frame is equipped with a walking mechanism that carries the warehouse discharge machine forward or backward in the longitudinal direction. The walking mechanism includes a walking reducer installed in the middle of the main frame. Both ends of the output shaft of the walking reducer are connected to the walking drive shaft through couplings respectively, and the other ends of the two walking drive shafts respectively drive the walking roller assemblies to walk along the corresponding longitudinal tracks; the walking reducer is provided with a high-speed ratio discharging walking input end and a low-speed ratio fast transition input end, the discharging walking input end is connected to the output shaft of the walking reducer motor through a discharging split elastic coupling, and the fast transition input end is connected to the output shaft of the fast transition motor through a transition split elastic coupling.

3. The high-layer compacted material discharging machine according to claim 2 is characterized by: The travel roller assembly comprises a travel drive sprocket mounted on the travel drive shaft, the left and right sides of the travel drive sprocket are respectively supported on the travel bracket through bearing seats, the front and rear sides of the travel bracket are respectively mounted with travel roller shafts, the middle of the travel roller shaft is respectively mounted with travel redirection sprockets, the left and right sides of the travel redirection sprocket are symmetrically mounted with travel rollers, each group of travel rollers is respectively supported on the longitudinal rails, the longitudinal rails are located on both sides of the ground rail groove, and the travel chain is located in the ground rail groove; Track cleaning blocks are symmetrically installed in front of each front walking roller and behind the rear walking roller. The top of each track cleaning block is floatingly connected to the bottom of the walking bracket, and the bottom of each track cleaning block falls on the longitudinal rails on both sides of the ground rail groove. The forward end of each track cleaning block is provided with a scraping slope, and a cleaning block groove is provided in the middle of the bottom wall of the track cleaning block along the longitudinal direction as an avoidance channel for the walking chain.

4. The high-layer compacted material discharging machine according to claim 3 is characterized by: A main frame bottom plate is provided at the bottom of the main frame, the bottom of the walking bracket is fixed above the main frame bottom plate, the track cleaning block is connected to the bottom of the main frame bottom plate by a cleaning block screw and a floating gap is provided therebetween, a distance sleeve and a distance gasket are sleeved on the periphery of the cleaning block screw, the distance sleeve is supported between the main frame bottom plate and the distance gasket and matches the gap with the screw hole of the track cleaning block.

5. The high-layer compacted material discharging machine according to claim 4 is characterized in that: A pulley drive frame is fixed above one end of the main frame close to the wall, the pulley drive frame is provided with a drive sleeve capable of sliding laterally, and oblique limit clamp frames are respectively provided on the front and rear sides of the drive sleeve, and the lower end of the limit clamp frame is fixedly connected to the top of the pulley drive frame; A pulley track extending in the longitudinal direction is fixed to the upper part of the wall, and a pulley assembly capable of translation is provided on the pulley track, and inclined rods are respectively hinged at the bottom of the front and rear ends of the pulley assembly, and the lower ends of the two inclined rods are respectively hinged at the front and rear sides of the driven hinge seat, and the driven hinge seat is fixed to the upper outer wall of the driven sleeve, and the lower end of the driven sleeve passes through between the two limit clamps and is inserted downward into the driving sleeve for fixing; A warehouse outgoing machine cable is suspended below the pulley track through a sliding hanger, a free end of the warehouse outgoing machine cable is fixed on the pulley assembly, and the free cable goes down along the driven sleeve to supply power to the warehouse outgoing machine.

6. The high-layer compacted material discharging machine according to claim 1 is characterized by: A double-row large sprocket is coaxially connected to the top of the discharging driving sprocket through a flange, and the double-row large sprocket is drivingly connected to the double-row small sprocket through a double-row chain, and the double-row small sprocket is fixed to the output end of the discharging reduction box, and the discharging reduction box is fixed on the main frame and driven by the discharging motor; The scraper assembly includes a vertical bracket whose middle part is fixed on the discharging chain link, and the upper and lower ends of the vertical bracket are respectively fixed with horizontal bracket plates extending horizontally outward, and the free ends of the upper and lower horizontal bracket plates are respectively connected with scraper comb plates extending outward; Chain restraint rollers are fixed to the top and bottom of the vertical bracket respectively. The chain restraint rollers are respectively located in the discharge chain restraint tracks. The openings of the upper and lower discharge chain restraint tracks face each other and are fixed to the outer wall of the main frame.

7. A flat warehouse unloading system, wherein a pit extending longitudinally is provided in the middle of the flat warehouse floor width direction, and a main conveyor extending along the entire length of the pit is provided at the bottom of the pit, characterized in that: On the ground at both sides of the pit, there are respectively provided high-layer compacted material discharge machines as described in any one of claims 1 to 6.

8. A flat warehouse unloading method, using the high material layer compacted material unloading machine according to any one of claims 1 to 6, characterized in that: The end of the arch-breaking auger on the top of the warehouse discharger is inserted into the compacted material at a high position in front in advance, rotating and moving back and forth horizontally. At the same time, as the warehouse discharger moves forward, a horizontal continuous fracture is cut on the cliff surface of the upper material layer in front to make it collapse downward in advance, forming a low material pile in front of the warehouse discharger. As the warehouse discharger moves forward, the discharge chain drives the scraper assembly to transport the material to the middle pit along the width direction.

9. The method for unloading goods from a flat warehouse according to claim 8, characterized in that: When the warehouse unloading machine moves forward to discharge materials, the input end of the travel reducer is driven by the travel reducer motor through the discharging split elastic coupling to achieve low-speed travel; after the unloading is completed at one end of the flat warehouse, the elastic body of the discharging split elastic coupling is removed, and it is switched to be driven by the fast transfer motor through the transfer split elastic coupling, and the warehouse unloading machine moves backward and then moves forward to the other end of the flat warehouse at high speed.

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