A high-efficiency logistics transportation system

Abstract

The application relates to a high-efficiency logistics transportation system, belonging to the field of goods transportation, which comprises a transportation mechanism, an elevator frame, an elevator car and a transportation disc, the transportation mechanism is used for controlling the sliding of the elevator car in the elevator frame, further comprising a conveying mechanism, the transportation disc comprises a bearing tray and an auxiliary tray, and the conveying mechanism is used for alternately feeding and discharging the bearing tray and the auxiliary tray into the elevator car. When the bearing tray is moved in or out of the elevator car in normal operation, the auxiliary tray can be correspondingly moved out or in, the elevator car does not need to stop and wait when an operator loads and unloads the bearing tray or the auxiliary tray, and the efficiency of goods transportation is relatively high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of goods transportation, in particular to an efficient logistics transportation system. BACKGROUND

[0002] In the working environment of factories, warehouses and workshops, it is often necessary to vertically transport goods to different floors or different height working areas, generally using a tray to load goods and then using an elevator or other vertical transportation device to transport the goods.

[0003] In the related art, the logistics transportation system includes a lifting device, a lifting frame, a lifting car and a tray. The length direction of the lifting frame is vertical, the lifting car is located in the lifting frame and is in sliding connection with the lifting frame, and the lifting device can control the reciprocating sliding of the lifting car. When the goods are placed in the tray, they are sent into the lifting car, and the lifting car reciprocates under the control of the lifting device, thereby transporting the goods to different heights.

[0004] For the above-mentioned related technology, the inventors believe that there are the following defects: when batchwise unidirectional transportation of goods is required, the working process of the logistics transportation system is as follows: the tray is moved to a target position at a certain height by riding the lifting car, and the tray is removed from the lifting car to load or unload the goods. During this process, the lifting car needs to be stopped for a long time to wait until the tray returns to the lifting car before it can start moving again, resulting in a longer downtime of the logistics transportation system and reducing the transportation efficiency of the logistics transportation system. SUMMARY

[0005] In order to improve the above problems, the present application provides an efficient logistics transportation system.

[0006] The efficient logistics transportation system provided by the present application adopts the following technical solution:

[0007] An efficient logistics transportation system includes a transportation mechanism, a lifting frame, a lifting car and a transportation tray. The transportation mechanism is used to control the sliding of the lifting car in the lifting frame. The system also includes a conveying mechanism. The transportation tray includes a load-bearing tray and an auxiliary tray. The conveying mechanism is used to alternately move the load-bearing tray and the auxiliary tray into and out of the lifting car.

[0008] By using the above technical solution, the load-bearing tray or the auxiliary tray can alternately enter the lifting car under the control of the conveying mechanism. The lifting car moves to the target area under the control of the transportation mechanism. When the load-bearing tray is moved into or out of the lifting car, the auxiliary tray can be moved out or in correspondingly. The lifting car can directly carry the new tray back. The loading and unloading operations of the load-bearing tray or the auxiliary tray by the operator do not affect the next working process of the lifting car, and the efficiency of the goods transportation is higher.

[0009] Preferably, the conveying mechanism comprises a feeding assembly, the feeding assembly comprises a fixed frame, a first driving source, a driving wheel, a driven wheel, a lifting chain, a tensioning column, a lifting frame, a first transmission chain and a first transmission wheel, the first driving source is fixedly connected with the fixed frame, the first driving source is used for controlling rotation of the driving wheel, the driving wheel is located in the fixed frame and is rotationally connected with the fixed frame, the driven wheel is located below the driving wheel, the tensioning column is located in the fixed frame and is slidingly connected with the fixed frame, one end of the lifting chain is fixedly connected with an inner wall of the fixed frame, the other end passes through the driving wheel and the driven wheel and passes through below the tensioning column and is fixedly connected with the fixed frame, the first transmission chain is wound on the first transmission wheel, the first transmission wheel is rotationally connected with the lifting frame, the lifting frame is rotationally connected with the driven wheel, the driven wheel is used for driving the lifting frame to move in the vertical direction, and the carrying tray or the auxiliary tray is abutted with the first transmission chain.

[0010] By adopting the above technical scheme, the first driving source controls rotation of the driving wheel, the rotation of the driving wheel drives the driven wheel to rise, the rising of the driven wheel drives the lifting frame to rise, the rising of the lifting frame can drive the carrying tray or the auxiliary tray on the lifting transmission chain to rise, so that the carrying tray or the auxiliary tray is away from the ground, thereby obtaining the condition of being able to translate into the lifting car, and due to the arrangement of the tensioning column, the tensioning column is always in a tensioning state under the influence of its own gravity, thereby facilitating cooperation between the driving wheel, the driven wheel and the lifting chain.

[0011] Preferably, the conveying mechanism further comprises a conveying assembly, the conveying assembly comprises a conveying frame, a conveying frame, a second transmission chain and a second transmission wheel, the second transmission chain is wound on the second transmission wheel, the second transmission wheel is rotationally connected with the conveying frame, the conveying frame is divided into two layers, the conveying frame, the second transmission chain and the second transmission wheel are provided in plurality, the carrying tray is located on the upper layer of the conveying frame and is abutted with the second transmission chain on the upper layer, and the auxiliary tray is located on the lower layer of the conveying frame and is abutted with the second transmission chain on the lower layer.

[0012] By adopting the above technical scheme, since the conveying frame is divided into two layers, the carrying tray is moved to the upper layer of the partition rod and is abutted with the second transmission chain under the action of the feeding assembly, thereby facilitating transportation of goods on the carrying tray, the auxiliary tray is moved to the lower layer of the partition rod and is abutted with the second transmission chain under the action of the feeding assembly, thereby facilitating cooperation between the carrying tray and the auxiliary tray, and different height conveying assemblies are mutually combined to realize simultaneous conveying of the two trays.

[0013] Preferably, the lifting frame and the transport frame are provided with a waist-shaped hole, the lifting frame and the transport frame are slidably connected with a clamping plate, one of the first transmission wheels and one of the second transmission wheels are rotatably connected with the clamping plate, the clamping plate is located at the waist-shaped hole, the lifting frame and the transport frame are fixedly connected with a support plate, the clamping plate is fixedly connected with an auxiliary screw rod on the side facing the support plate, the length direction of the auxiliary screw rod is consistent with the transmission direction of the first transmission chain, the support plate is rotatably connected with an auxiliary nut, and the auxiliary screw rod passes through the support plate and the auxiliary nut and is threadedly connected with the auxiliary nut.

[0014] By adopting the above technical scheme, the rotation of the auxiliary nut can control the axial movement of the auxiliary screw rod, the length of the auxiliary screw rod passing through the support plate is controlled, the sliding of the clamping plate in the waist-shaped hole is controlled, the movement of the clamping plate can drive the first transmission wheel to move along the transmission direction of the first transmission belt and the second transmission wheel to move along the length direction of the transport frame, thereby controlling the distance between the first transmission wheels or the distance between the second transmission wheels, so that the first transmission chain or the second transmission chain is in a tension state.

[0015] Preferably, the limiting assembly comprises a support rod, a connecting rod, a detection plate and a width limiting rod, the support rod and the connecting rod are fixedly connected, the length direction of the support rod is vertical, the length direction of the connecting rod is perpendicular to the length direction of the support rod, the detection plate is fixedly connected with the connecting rod, the width limiting rod is hingedly connected with the detection plate, a vibration sensor is installed on the detection plate, the vibration sensor is used to send a signal when the goods contact the width limiting rod, an adjusting bolt is connected with the detection plate, the adjusting bolt passes through the width limiting rod and the detection plate and is threadedly connected with the detection plate, an adjusting nut is threadedly connected with the end of the adjusting bolt extending out of the detection plate, an adjusting spring is coaxially arranged on the adjusting bolt, one end of the adjusting spring abuts against the adjusting thread, and the other end abuts against the side of the detection plate facing the adjusting nut, and the vibration sensor abuts against the width limiting rod.

[0016] By adopting the above technical scheme, the vibration sensor on the detection plate can detect the width of the goods accumulation on the bearing tray, when the goods accumulation hits the width limiting rod, the width limiting rod vibrates, the vibration sensor can send a signal to temporarily stop the operation of the logistics transportation system.

[0017] Preferably, the transport mechanism comprises a transport assembly, the transport assembly comprises a second driving source, a transmission belt, a control wheel and a fixed rod, the second driving source, the fixed rod and the control wheel are fixedly connected to the top end of the lifting frame, the second driving source is used to control the rotation of the control wheel, the transmission belt is arranged on the pulley, one end of the transmission belt is fixedly connected with the lifting car, and the fixed rod is located on the side of the transmission belt away from the control wheel and is in contact with the transmission belt.

[0018] By adopting the above technical solution, when the carrying pallet or auxiliary pallet enters the lifting car, the drive shaft of the second drive source drives the control wheel to rotate. The rotation of the control wheel causes the lifting car to rise or fall through the transmission belt. The fixed rod can limit the transmission of the transmission belt, reducing the possibility of the transmission belt coming off the pulley.

[0019] Preferably, the transport mechanism further includes auxiliary components, which include an auxiliary torsion spring, an auxiliary rod, a safety clamp, a cooperating rod, and a speed limiter. The speed limiter is located at the top of the lifting frame. The cooperating rod cooperates with the wire rope inside the speed limiter. The safety clamp is fixedly connected to opposite sides of the lifting car. The auxiliary rod is located inside the lifting car and is rotatably connected to the lifting car. A safety rod is fixedly connected to the end of the auxiliary rod. The cooperating rod is hinged to the safety rod. The safety rod cooperates with the safety clamp. The auxiliary torsion spring is coaxially sleeved on the auxiliary rod. The lifting car has multiple adjustment holes for one end of the auxiliary torsion spring to pass through, and these adjustment holes are distributed circumferentially along the end of the auxiliary rod that extends out of the lifting car.

[0020] By adopting the above technical solution, when the lifting car is working normally, the auxiliary torsion spring controls the auxiliary rod so that the auxiliary rod controls the safety rod and does not engage with the safety clamp. When the lifting car falls unexpectedly, the wire rope of the speed limiter can pull the cooperating rod, which pulls the safety rod so that the safety rod engages with the safety clamp, thereby slowing down and stopping the lifting car. After a long period of use, the torque of the auxiliary torsion spring decreases. Moving one end of the auxiliary torsion spring from one adjustment hole to another allows the auxiliary torsion spring to restore its torque and improves its service life.

[0021] Preferably, both the supporting tray and the auxiliary tray are provided with positioning grooves, and the groove walls and the groove openings are provided with transition chamfers.

[0022] By adopting the above technical solution, when the goods trolley is placed on the carrier pallet or auxiliary pallet, the positioning groove can limit the movement of the goods trolley, reducing the possibility of the goods trolley slipping during the movement of the carrier pallet.

[0023] Preferably, the transport plate is provided with an auxiliary cavity on one side of the storage site, the auxiliary plate is fixedly connected to the bottom of the auxiliary cavity on the side of the bearing tray or auxiliary tray facing the ground, the fixed plate is fixedly connected to the side of the bearing tray or auxiliary tray facing the ground, the auxiliary plate and the fixed plate are in abutment with the ground, the auxiliary plate is provided with an auxiliary groove, the fixed plate is provided with a fixed hole on the side facing the auxiliary plate, the bearing tray or auxiliary tray is provided with a limiting rod, the limiting rod slides relative to the bearing tray or auxiliary tray, one end of the limiting rod is inserted into the fixed plate through the fixed hole, the other end is detachably connected with a limiting rod, one end of the limiting rod is located in the auxiliary cavity, and the other end faces the goods, the limiting rod and the limiting rod slide relative to the goods cart and the sliding directions of the limiting rod and the limiting rod are perpendicular to the advancing direction of the goods cart, and the bearing tray or auxiliary tray is further provided with a control assembly.

[0024] By adopting the above technical scheme, the fixed plate can be used as the rib structure of the bearing tray, the deformation of the bearing tray or auxiliary tray caused by the pressure of the goods can be reduced, and the wheels of the goods cart on the bearing tray or auxiliary tray can be limited by the end of the limiting rod extending out of the auxiliary cavity, so that the goods cart is not easy to slide on the bearing tray, and the possibility of falling off of the goods cart during movement of the bearing tray is reduced.

[0025] Preferably, the control assembly comprises a control spring and a control seat, one end of the control spring is bonded to the groove wall of the auxiliary groove, the other end is in abutment with the limiting rod, the fixed plate is provided with an auxiliary hole on the side facing the ground, the control seat is located on the ground and the auxiliary hole is inserted into the end of the control seat away from the ground, the side wall of the part of the control seat inserted into the fixed plate is provided with an arc surface, one end of the limiting rod inserted into the fixed plate is rotatably connected with a limiting wheel, and the limiting wheel is in abutment with the surface of the control seat.

[0026] By adopting the above technical scheme, when the bearing tray or auxiliary tray is located on the ground, the end of the limiting rod inserted into the fixed plate is pushed by the control seat to make the other end of the limiting rod located in the auxiliary cavity, when the bearing tray or auxiliary tray carries the goods cart and rises, the end of the limiting rod inserted into the fixed plate is away from the control seat and is pushed by the control spring, so that the other end of the limiting rod extends out of the auxiliary cavity and limits the wheels of the goods cart.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. Through the setting of the bearing tray and the auxiliary tray, the bearing tray or the auxiliary tray conveying mechanism can be alternately entered into the lifting cabin under the control of the bearing tray or the auxiliary tray conveying mechanism, the lifting cabin moves to the destination area under the control of the transportation mechanism, when the bearing tray is moved in or out of the lifting cabin, the auxiliary tray can be moved out or in correspondingly, the lifting cabin can directly carry the new tray back, the loading and unloading operation of the operator on the bearing tray or the auxiliary tray does not affect the next working process of the lifting cabin, and the efficiency of the goods transportation is higher.

[0029] 2. Through the setting of the positioning groove, when the goods cart is placed into the bearing tray or the auxiliary tray, the positioning groove can limit the goods cart, and the possibility of sliding of the goods cart in the moving process of the bearing tray is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the overall structure schematic diagram for embodying the efficient logistics transportation system in the embodiment one of the application.

[0031] Figure 2 is the structure schematic diagram for embodying the goods cart located in the conveying rack in the embodiment one of the application.

[0032] Figure 3 is the structure schematic diagram for embodying the feeding assembly in the embodiment one of the application.

[0033] Figure 4 is the partial enlarged view of A part in Figure 3

[0034] Figure 5 is the structure schematic diagram for embodying the inside of the fixing frame in the embodiment one of the application.

[0035] Figure 6 is the structure schematic diagram for embodying the conveying assembly in the embodiment one of the application.

[0036] Figure 7 is the structure schematic diagram for embodying the transportation assembly in the embodiment one of the application.

[0037] Figure 8 is the structure schematic diagram for embodying the lifting assembly in the embodiment one of the application.

[0038] Figure 9 is the structure schematic diagram for embodying the auxiliary assembly in the embodiment one of the application.

[0039] Figure 10 is the partial enlarged view of B part in Figure 9

[0040] Figure 11 is the structure schematic diagram for embodying the auxiliary rod in the embodiment one of the application.​​

[0041] Figure 12 is a structural schematic diagram for embodying the limiting assembly in the embodiment one of the present application.

[0042] Figure 13 is Figure 12 is a partial enlarged view of the C part in the embodiment one of the present application.

[0043] Figure 14 is a structural schematic diagram for embodying the transport tray in the embodiment two of the present application.

[0044] Figure 15 is a structural schematic diagram for embodying the bottom of the transport tray in the embodiment two of the present application.

[0045] Figure 16 is a structural schematic diagram for embodying the transport tray in the embodiment two of the present application.

[0046] BRIEF DESCRIPTION OF THE DRAWINGS: 1, elevator frame; 11, elevator car; 12, transition plate; 2, transport tray; 21, bearing tray; 211, auxiliary cavity; 212, auxiliary plate; 2121, auxiliary groove; 213, fixed plate; 2131, fixed hole; 2132, auxiliary hole; 214, limiting rod; 2141, limiting wheel; 215, limiting rod; 216, control assembly; 2161, control spring; 2162, control seat; 22, auxiliary tray; 23, positioning groove; 3, conveying mechanism; 31, feeding assembly; 310, first driving motor; 311, fixed frame; 312, lifting motor; 313, driving wheel; 314, follower wheel; 315, lifting chain; 316, tensioning column; 317, lifting frame; 3171, waist-shaped hole; 318, first transmission chain; 319, first transmission wheel; 32, conveying assembly; 321, conveying frame; 322, partition rod; 323, transport frame; 324, second transmission chain; 325, second transmission wheel; 326, second driving motor; 33, tensioning assembly; 331, clamping plate; 332, support plate; 333, auxiliary screw; 334, auxiliary nut; 4, transport mechanism; 41, transport assembly; 411, control motor; 412, transmission belt; 413, control wheel; 4131, first pulley; 4132, second pulley; 414, fixed rod; 42, lifting assembly; 421, conveying frame; 422, third transmission wheel; 423, third transmission chain; 424, third driving motor; 43, auxiliary assembly; 431, auxiliary torsional spring; 4311, adjusting hole; 432, vertical rod; 433, auxiliary rod; 434, safety clamp; 435, matching rod; 436, speed limiter; 437, auxiliary piece; 438, travel switch; 439, safety rod; 5, limiting assembly; 51, support rod; 52, connecting rod; 53, detection plate; 531, adjusting bolt; 532, adjusting nut; 533, adjusting spring; 54, width limiting rod; 541, vibration sensor; 542, infrared sensor. DETAILED DESCRIPTION

[0047] The application is described in further detail below in conjunction with the accompanying Figures 1-16 The application is described in further detail below in conjunction with the accompanying

[0048] Embodiment One

[0049] The application discloses a high-efficiency logistics transportation system, as shown in Figure 1 and 2 The system comprises an elevator frame 1, an elevator car 11, a transportation tray 2, a transportation mechanism 4 and a conveying mechanism 3. The transportation tray 2 comprises a bearing tray 21 and an auxiliary tray 22. The bearing tray 21 and the auxiliary tray 22 have the same size and structure. When the tray carries goods, it is the bearing tray 21; when the tray does not carry goods, it is the auxiliary tray 22. The transportation mechanism 4 is used to control the sliding of the elevator car 11 in the elevator frame 1. The conveying mechanism 3 is used to alternately transport the bearing tray 21 or the auxiliary tray 22 into the elevator car 11.

[0050] As shown in Figure 3 , 4 , 5 and 6, the conveying mechanism 3 comprises a fixed frame 311, and the transportation mechanism 4 comprises a conveying frame 321. The length direction of the fixed frame 311 is perpendicular to the ground, and the fixed frame 311 is located on the side of the conveying frame 321 away from the elevator foot. The tray surface of the bearing tray 21 and the auxiliary tray 22 is provided with a positioning groove 23. A transition chamfer is arranged on the groove wall of the positioning groove 23 and at the groove opening. The length direction of the positioning groove 23 is perpendicular to the conveying direction of the conveying mechanism 3. The fixed frame 311 is provided with a transition plate 12 at the end away from the conveying frame 321. The transition plate 12 is fixedly connected to the ground, and the end of the transition plate 12 away from the conveying mechanism 3 is inclined towards the ground. The trolley carrying goods can be transported onto the bearing tray 21 or the auxiliary tray 22 through the transition plate 12. After the wheels of the trolley are trapped in the positioning groove 23, they are not easy to roll out of the groove, thereby reducing the possibility of skidding of the trolley during transportation.

[0051] As shown in Figure 3 and 5As shown, the conveying mechanism 3 comprises a feeding assembly 31, the feeding assembly 31 comprising a first driving source, a driving wheel 313, a driven wheel 314, a lifting chain 315 and a tensioning column 316, the length direction of the fixed frame 311 being vertical, and two fixed frames 311 being mirror-imaged arranged. The first driving source is a lifting motor 312 with a reducer, the lifting motor 312 being located at the end of the fixed frame 311 and fixedly connected with the fixed frame 311, the driving wheel 313 being located in the fixed frame 311 and rotatably connected with the fixed frame 311, and the output shaft of the lifting motor 312 being coaxially fixedly connected with the driving wheel 313. The tensioning column 316 is located in the fixed frame 311 and slidably connected with the fixed frame 311, the sliding direction of the tensioning column 316 being consistent with the length direction of the fixed frame 311, the driven wheel 314 being located below the driving wheel 313, the lifting chain 315 being located inside the fixed frame 311 and one end of the lifting chain 315 being fixedly connected with the fixed frame 311, and the other end passing through the driving wheel 313 and the driven wheel 314 and passing below the tensioning column 316 and being fixedly connected with the fixed frame 311.

[0052] As shown in FIGS. Figure 3 , 4 and 5, the feeding assembly 31 further comprises a lifting frame 317, a first transmission chain 318, a first transmission wheel 319 and a first driving motor 310 with a reducer, two lifting frames 317 being provided and one lifting frame 317 corresponding to one fixed frame 311, the length direction of the lifting frame 317 being consistent with the advancing direction of the transport plate 2 when the transport plate 2 is moved out of the lifting car 11, the first transmission wheel 319 being located on the lifting frame 317 and two first transmission wheels 319 being provided on a single lifting frame 317, the two first transmission wheels 319 being rotatably connected with the lifting frame 317 and arranged along the length direction of the lifting frame 317, and the output shaft of the first driving motor 310 being coaxially fixedly connected with one first transmission wheel 319. The first transmission chain 318 is meshed and wound around the two first transmission wheels 319, the lifting frame 317 is rotatably connected with the driven wheel 314, and the opposite edges of the transport plate 2 are integrally formed with overlapping extension edges, the overlapping extension edges being located above the lifting frame 317 and abutting against the first transmission chain 318. The output shaft of the lifting motor 312 drives the driving wheel 313 to rotate, the rotation of the driving wheel 313 can drive the driven wheel 314 to rise, since the axle of the driven wheel 314 is connected with the lifting frame 317, the rising of the driven wheel 314 can drive the lifting frame 317 to rise, so as to make the bearing tray 21 rise, and the driving shaft of the first driving motor 310 drives the first transmission wheel 319 to rotate, so as to make the bearing tray 21 move along the conveying direction of the conveying mechanism 3.

[0053] As shown in FIGS. Figure 6As shown, the conveying mechanism 3 further comprises a conveying assembly 32, the conveying assembly 32 comprises a partition rod 322, the partition rod 322 is fixedly connected with the conveying frame 321, the length direction of the partition rod 322 is horizontal and perpendicular to the conveying direction of the conveying mechanism 3, and the partition rod 322 divides the conveying frame 321 into two layers. The conveying assembly 32 further comprises a conveying frame 323, a second transmission chain 324, a second transmission wheel 325 and a second driving motor 326. The conveying frame 323 is provided with two groups, one group is located on the upper layer of the conveying frame 321, and the other group is located on the lower layer of the conveying frame 321. Each group of conveying frames 323 has two and is mirror image arranged, and the conveying frame 323 is fixedly connected with the conveying frame 321. The second transmission wheel 325 is located on the conveying frame 323 and two second transmission wheels 325 are arranged on one conveying frame 323. The two second transmission wheels 325 are rotatably connected with the conveying frame 323 and arranged along the length direction of the conveying frame 323. The second transmission chain 324 is wound around the two second transmission wheels 325 and meshed with each other. The output shaft of the second driving motor 326 with a speed reducer is coaxially fixedly connected with one second transmission wheel 325. The bearing tray 21 is located above the partition rod 322 and the overlapping extension edge thereof abuts against the second transmission chain 324. The auxiliary tray 22 is located below the partition rod 322 and the overlapping extension edge thereof abuts against the second transmission chain 324.

[0054] As shown in Figure 4 and 5 As shown, the waist-shaped hole 3171 is formed on the lifting frame 317 and the conveying frame 323. The tensioning assembly 33 is arranged on the lifting frame 317 and the conveying frame 323. The tensioning assembly 33 comprises a clamping plate 331, a supporting plate 332, an auxiliary screw 333 and an auxiliary nut 334. The clamping plate 331 is located at the waist-shaped hole 3171 and is slidably connected with the lifting frame 317. The first transmission wheel 319 is rotatably connected with the clamping plate 331. The supporting plate 332 is located on the side of the lifting frame 317 away from the first transmission chain 318. The auxiliary screw 333 is fixedly connected to the side of the clamping plate 331 facing the supporting plate 332. The length direction of the auxiliary screw 333 is consistent with the length direction of the lifting frame 317. The auxiliary nut 334 is located on both sides of the supporting plate 332. The auxiliary screw 333 passes through the supporting plate 332 and the auxiliary nut 334 and is threadedly connected with the auxiliary nut 334. The long-time movement of the first transmission chain 318 can cause the loosening of the transmission chain. The axial movement of the auxiliary screw 333 can be controlled by rotating the auxiliary nut 334. The bolt passing through the clamping plate 331 can slide in the waist-shaped hole 3171. The axial movement of the auxiliary screw 333 can drive the movement of the clamping plate 331. The movement of the clamping plate 331 can drive the movement of the first transmission wheel 319 along the length direction of the lifting frame 317, so as to increase the distance between the two first transmission wheels 319 and re-tension the first transmission chain 318. The structure and arrangement of the tensioning assembly 33 on the conveying frame 323 are consistent with those of the lifting frame 317, which will not be described here.

[0055] As Figure 7 and 8 shown, the transport mechanism 4 further comprises a transport assembly 41, the transport assembly 41 comprising a second driving source, a transmission belt 412, a control wheel 413 and a fixed rod 414, the second driving source being a control motor 411, the control motor 411, the fixed rod 414 and the control wheel 413 all being fixedly connected to the top end of the elevator frame 1, the control wheel 413 being provided in two groups, and one group of the control wheel 413 comprising a first pulley 4131 and a second pulley 4132, the output shaft of the control motor 411 with a speed reducer being coaxially fixedly connected with the first pulley 4131. The transmission belt 412 is wound on the first pulley 4131 and the second pulley 4132, one end of the transmission belt 412 being fixedly connected with a counterweight (not shown in the figure), and the other end being fixedly connected with the lift car 11. The fixed rod 414 is located on the side of the transmission belt 412 away from the control wheel 413 and is in contact with the transmission belt 412, and the fixed rod 414 can limit the transmission of the transmission belt 412. The lift car 11 is provided with a lifting assembly 42, the lifting assembly 42 comprising a conveying frame 421, a third transmission wheel 422, a third transmission chain 423 and a third driving motor 424, the conveying frame 421 also being provided with two layers and being consistent with the structure in the conveying frame 321, when the third transmission chain 423 and the second transmission chain 324 are flush, the carrier tray 21 or the auxiliary tray 22 can be transported from the second transmission chain 324 to the third transmission chain 423. When the carrier tray 21 or the auxiliary tray 22 enters the lift car 11, the output shaft of the control motor 411 with a speed reducer rotates to drive the rotation of the first pulley 4131, the rotation of the first pulley 4131 drives the rotation of the second pulley 4132 through the transmission belt 412, and the transmission belt 412 drives the lifting or lowering of the lift car 11, and when the lift car 11 is lifted or lowered, the fixed rod 414 can reduce the possibility of the transmission belt 412 falling off the second pulley 4132.

[0056] As Figure 9 , 10As shown in FIGS. 11, the conveying mechanism 4 further comprises an auxiliary assembly 43, which comprises an auxiliary torsion spring 431, a vertical rod 432, an auxiliary rod 433, a safety clamp 434, a matching rod 435, a speed limiter 436, an auxiliary piece 437 and a travel switch 438. The speed limiter 436 is located at the top end of the elevator frame 1, the matching rod 435 is matched with the steel wire rope in the speed limiter 436 and is arranged on the opposite sides of the lift car 11. The auxiliary rod 433 is located in the lift car 11 and is rotationally connected with the lift car 11, and the length direction of the auxiliary rod 433 is perpendicular to the conveying direction of the conveying mechanism 3. The end of the auxiliary rod 433 is fixedly connected with a safety rod 439, the matching rod 435 is fixedly connected with the steel wire rope, the matching rod 435 and the safety rod 439 are hinged, the safety clamp 434 is arranged on the opposite sides of the lift car 11 and is fixedly connected with the safety clamp 434. The safety rod 439 is matched with the safety clamp 434. The vertical rod 432 is fixedly connected with the elevator frame 1, the length direction of the vertical rod 432 is consistent with the length direction of the elevator frame 1, and the vertical rod 432 passes through the safety clamp 434. The auxiliary torsion spring 431 is arranged on the two ends of the auxiliary rod 433, and the auxiliary torsion spring 431 is coaxially sleeved on the two ends of the auxiliary rod 433. The lift car 11 is provided with a plurality of adjustment holes 4311 through which one end of the auxiliary torsion spring 431 extends, and the adjustment holes 4311 are distributed circumferentially along the end of the auxiliary rod 433 extending out of the lift car 11. The auxiliary piece 437 is fixedly connected with the auxiliary rod 433, the travel switch 438 is fixedly connected with the lift car 11, and the auxiliary piece 437 abuts against the travel switch 438. When the lift car 11 works normally, the auxiliary torsion spring 431 can control the rotation of the auxiliary rod 433, the safety rod 439 does not cooperate with the safety clamp 434, the auxiliary piece 437 and the travel switch 438 abut against each other, and the plurality of auxiliary holes 2132 can control the one end of the auxiliary torsion spring 431 to be inserted. When the auxiliary torsion spring 431 is used for a long time, the one end of the auxiliary torsion spring 431 is moved from one adjustment hole 4311 to another adjustment hole 4311, and the auxiliary torsion spring 431 can continue to control the auxiliary rod 433, without the need to replace a new auxiliary torsion spring 431. When the lift car 11 falls accidentally, the lift car 11 has a motion trend of falling rapidly, the speed limiter 436 stops moving in response to the steel wire rope, the safety rod 439 rotates relatively under the tension, so that the safety rod 439 and the safety clamp 434 cooperate, the safety clamp 434 clamps the vertical rod 432, and the hard friction between the two reduces the falling speed of the lift car 11 until it stops, and the auxiliary piece 437 is away from the travel switch 438, and the travel switch 438 can transmit a signal to inform the staff.

[0057] As Figure 12 and 13As shown, the logistics transportation system further comprises a limiting assembly 5, the limiting assembly 5 comprising two support rods 51, a connecting rod 52, two detection plates 53 and a width limiting rod 54, the two support rods 51 being located at opposite sides of the conveyor frame 321, the support rods 51 and the connecting rod 52 being connected by bolts, the length direction of the support rods 51 being vertical, the length direction of the connecting rod 52 being perpendicular to the length direction of the support rods 51, the connecting rod 52 being located in front of the two support rods 51 and at an end of the support rods 51 away from the ground. The detection plates 53 are fixedly connected with the connecting rod 52, the two detection plates 53 being located at a side of the connecting rod 52 facing the ground and respectively arranged at two end positions of the connecting rod 52. An adjusting bolt 531 is connected to the detection plate 53, the adjusting bolt 531 penetrating through the width limiting rod 54 and the detection plate 53 and being threadedly connected with the detection plate 53, the length direction of the adjusting bolt 531 being consistent with the length direction of the connecting rod 52, an end of the adjusting bolt 531 extending out of the detection plate 53 being threadedly connected with an adjusting nut 532, the adjusting bolt 531 being coaxially provided with an adjusting spring 533, one end of the adjusting spring 533 abutting against the adjusting nut 532 and the other end abutting against a side of the detection plate 53 facing the adjusting nut 532. In this way, the width limiting rod 54 and the detection plate 53 are hingedly connected through the adjusting bolt 531, the detection plate 53 being provided with a vibration sensor 541 and an infrared sensor 542, the infrared sensor 542 comprising an infrared emitter and an infrared receiver, the infrared emitter being located on one detection plate 53 and the infrared receiver being located on the other detection plate 53, in a natural state, the width limiting rod 54 naturally droops under the action of its own gravity, when the goods are transported on the upper layer of the conveyor frame 321 on the bearing pallet 21, the infrared sensor 542 can detect the height of the goods stacked on the bearing pallet 21, when the goods are stacked too high, the infrared receiver cannot receive the signal of the infrared emitter, the infrared sensor 542 sends a signal to temporarily stop the work of the system, when the goods are stacked too high or hit the width limiting rod 54, the infrared sensor 542 can send a signal, the vibration sensor 541 sends a signal by the vibration of the width limiting rod 54, so as to temporarily stop the work of the logistics transportation system.

[0058] The implementation principle of the high-efficiency logistics transportation system in the embodiment of the application is as follows:

[0059] The loading assembly 31 lifts the carrying tray 21 to the same height as the upper layer of the conveying frame 321, and then the first driving motor 310 starts to move the carrying tray 21 horizontally towards the second driving chain 324 of the upper layer. The rotation of the driving shaft of the second driving motor 326 drives the rotation of the second driving wheel 325, so that the carrying tray 21 enters the upper layer of the conveying frame 321 and abuts against the second driving chain 324. The overlapping extension edge of the carrying tray 21 is lapped onto the second driving chain 324. When the second driving chain 324 and the third driving chain 423 are aligned and leveled, the second driving chain 324 continuously drives to transport the carrying tray 21 to the third driving chain 423, thereby completing the transportation. The loading assembly 31 lifts the auxiliary tray 22 to the lower layer of the conveying frame 321. The rotation of the driving shaft of the second driving motor 326 drives the rotation of the second driving wheel 325, so that the auxiliary tray 22 enters the lower layer of the conveying frame 321 and abuts against the second driving chain 324. The auxiliary tray 22 is transported to the lift car 11, facilitating the cooperation and transportation between the carrying tray 21 and the auxiliary tray 22.

[0060] Embodiment two:

[0061] As Figure 14 , 15As shown in FIGS. 16, the difference between the embodiment one is that the positioning slot 23 is not set on the transport plate 2, the auxiliary cavity 211 is set between the lap joint extension edge and the plate surface of the transport plate 2, the auxiliary plate 212 is fixedly connected to the side of the transport plate 2 which is close to the ground and is located directly below the auxiliary cavity 211, the auxiliary plate 212 is provided with two, the fixed plate 213 is fixedly connected to the side of the transport plate 2 which is close to the ground and is located between the two auxiliary plates 212, the side of the auxiliary plate 212 which is close to the ground is provided with the auxiliary slot 2121, the side of the fixed plate 213 which is close to the auxiliary plate 212 is provided with the fixed hole 2131, and the side of the fixed plate 213 which is close to the ground is provided with the auxiliary hole 2132. The transport plate 2 is provided with the limiting rod 214, the limiting rod 214 is in L shape, the limiting rod 214 slides relative to the bearing tray 21 or the auxiliary tray 22, the sliding direction of the limiting rod 214 is perpendicular to the advancing direction of the goods cart, one end of the limiting rod 214 is inserted into the fixed plate 213 through the fixed hole 2131, and the other end of the limiting rod 214 extends into the auxiliary cavity 211. The length direction of the limiting rod 215 is consistent with the sliding direction of the limiting rod 214, one end of the limiting rod 215 is inserted into the auxiliary cavity 211 and is threadedly connected with the limiting rod 214, the other end of the limiting rod 215 is located on the plate surface of the transport plate 2, and a plurality of holes through which the limiting rod 215 passes are set on the cavity wall of the auxiliary cavity 211. The bearing tray 21 or the auxiliary tray 22 is provided with the control assembly 216, the control assembly 216 includes the control spring 2161 and the control seat 2162, the control seat 2162 is fixedly connected to the ground and is located between the two lifting frames 317, the auxiliary hole 2132 is for inserting the control seat 2162, the side wall of the part of the control seat 2162 which is inserted into the fixed plate 213 is provided with an arc surface, one end of the limiting rod 214 which is inserted into the fixed plate 213 is rotationally connected with the limiting wheel 2141, and the limiting wheel 2141 abuts against the surface of the control seat 2162. One end of the control spring 2161 is bonded with the slot wall of the auxiliary slot 2121, and the other end of the control spring 2161 abuts against the limiting rod 214, and in the natural state, the control spring 2161 applies a pushing force to the limiting rod 214.

[0062] As Figure 14 、 15As shown in Figs. 16 and 17, when the bearing tray 21 is lowered to the point that the fixed plate 213 of the bearing tray 21 is in contact with the ground, the control seat 2162 is inserted into the auxiliary hole 2132, the limiting rod 214 is inserted into the limiting wheel 2141 at one end of the fixed plate 213 and abuts against the control seat 2162, the limiting rod 214 is moved by the pushing force, the limiting rod 215 is moved into the auxiliary cavity 211, the space above the tray is reduced, and the goods cart is conveniently pushed into the bearing tray 21 or the auxiliary tray 22; when the bearing tray 21 or the auxiliary tray 22 is lifted to bear the goods cart, the control seat 2162 is moved out of the auxiliary hole 2132, the two limiting rods 214 are pushed by the control spring 2161, the limiting rod 214 at one end of the auxiliary cavity 211 is extended out of the auxiliary cavity 211, the wheels of the goods cart are positioned, and thus the possibility of the goods cart slipping during the movement of the bearing tray 21 is reduced. According to the wheel track of the goods cart, the limiting rod 215 can be selected to have different lengths, and according to the wheelbase of the goods cart, the limiting rod 215 can be inserted into the auxiliary cavity 211 from the openings at different positions of the cavity wall.

[0063] The implementation principle of the high-efficiency logistics transportation system in the embodiment of the present application is as follows:

[0064] Compared with the first embodiment, the cooperation of the limiting rod 214 and the limiting rod 215 in the second embodiment is more stable in positioning the wheels of the goods cart, the goods cart can be relatively fixed in the bearing tray 21, and the possibility of the goods cart slipping during the transportation is reduced.

[0065] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A high-efficiency logistics transportation system comprising a transportation mechanism (4) for controlling the sliding of a lift car (11) within a lift frame (1), a lift car (11) and a transportation tray (2), characterized in that: Also include conveying mechanism (3), the transport tray (2) includes a bearing tray (21) and auxiliary tray (22), the conveying mechanism (3) is used to make bearing tray (21) and auxiliary tray (22) alternately into and out of the lift car (11); The auxiliary cavity (211) is arranged on the transport tray (2) and at one side of the storage location, the auxiliary plate (212) is fixedly connected to the side of the bearing tray (21) or the auxiliary tray (22) facing the ground and below the auxiliary cavity (211), the fixed plate (213) is fixedly connected to the side of the bearing tray (21) or the auxiliary tray (22) facing the ground, the auxiliary plate (212) and the fixed plate (213) are in abutment with the ground, the auxiliary groove (2121) is arranged on the auxiliary plate (212), the fixed hole (2131) is arranged on the side of the fixed plate (213) facing the auxiliary plate (212), the limiting rod (214) is arranged on the bearing tray (21) or the auxiliary tray (22), the limiting rod (214) is in sliding connection with the bearing tray (21) or the auxiliary tray (22), one end of the limiting rod (214) is inserted into the fixed plate (213) through the fixed hole (2131), the other end of the limiting rod (214) is detachably connected with the limiting rod (215), one end of the limiting rod (215) is located in the auxiliary cavity (211), the other end of the limiting rod (215) faces the goods, the limiting rod (215) and the limiting rod (214) are in sliding connection with the goods cart and the sliding directions of the limiting rod (215) and the limiting rod (214) are perpendicular to the advancing direction of the goods cart, the control assembly (216) is further arranged on the bearing tray (21) or the auxiliary tray (22), and the control assembly (216) is used to control the sliding of the limiting rod (214). The control assembly (216) includes a control spring (2161) and a control seat (2162), one end of the control spring (2161) is bonded to the groove wall of the auxiliary groove (2121), the other end of the control spring (2161) is in abutment with the limiting rod (214), the auxiliary hole (2132) is arranged on the side of the fixed plate (213) facing the ground, the control seat (2162) is located on the ground and the auxiliary hole (2132) is used for inserting one end of the control seat (2162) away from the ground, the side wall of the part of the control seat (2162) inserted into the fixed plate (213) is provided in an arc shape, one end of the limiting rod (214) inserted into the fixed plate (213) is rotatably connected with the limiting wheel (2141), and the limiting wheel (2141) is in abutment with the surface of the control seat (2162).

2. The high efficiency logistics transportation system of claim 1, wherein: The conveying mechanism (3) comprises a feeding assembly (31), the feeding assembly (31) comprises a fixing frame (311), a first driving source, a driving wheel (313), a follower wheel (314), a lifting chain (315), a tensioning column (316), a lifting frame (317), a first transmission chain (318) and a first transmission wheel (319), the first driving source is fixedly connected with the fixing frame (311), the first driving source is used for controlling the rotation of the driving wheel (313), the driving wheel (313) is located in the fixing frame (311) and is rotationally connected with the fixing frame (311), the follower wheel (314) is located below the driving wheel (313), the tensioning column (316) is located in the fixing frame (311) and is slidingly connected with the fixing frame (311), one end of the lifting chain (315) is fixedly connected with the inner wall of the fixing frame (311), the other end passes through the driving wheel (313) and the follower wheel (314) and passes through the tensioning column (316) below and is fixedly connected with the fixing frame (311), the first transmission chain (318) is wound on the first transmission wheel (319), the first transmission wheel (319) is rotationally connected with the lifting frame (317), the lifting frame (317) is rotationally connected with the follower wheel (314), the follower wheel (314) is used for driving the lifting frame (317) to move in the vertical direction, and the carrying tray (21) or the auxiliary tray (22) abuts against the first transmission chain (318).

3. The high efficiency logistics transport system of claim 2, wherein: The conveying mechanism (3) further comprises a conveying assembly (32), the conveying assembly (32) comprises a conveying frame (321), a conveying frame (323), a second transmission chain (324) and a second transmission wheel (325), the second transmission chain (324) is wound on the second transmission wheel (325), the second transmission wheel (325) is rotationally connected with the conveying frame (323), the conveying frame (321) is divided into two layers, the conveying frame (323), the second transmission chain (324) and the second transmission wheel (325) are provided with a plurality of, the carrying tray (21) is located in the upper layer of the conveying frame (321) and abuts against the second transmission chain (324) in the upper layer, and the auxiliary tray (22) is located in the lower layer of the conveying frame (321) and abuts against the second transmission chain (324) in the lower layer.

4. The high efficiency logistics transport system of claim 3, wherein: The lifting frame (317) and the conveying frame (323) are slidably connected with a clamping plate (331), one of the first transmission wheels (319) and one of the second transmission wheels (325) are rotatably connected with the clamping plate (331), the clamping plate (331) is located at the waist-shaped hole (3171), the lifting frame (317) and the conveying frame (323) are fixedly connected with a supporting plate (332), one side of the clamping plate (331) towards the supporting plate (332) is fixedly connected with an auxiliary screw rod (333), the length direction of the auxiliary screw rod (333) is consistent with the transmission direction of the first transmission chain (318), the supporting plate (332) is rotatably connected with an auxiliary nut (334), the auxiliary screw rod (333) passes through the supporting plate (332) and the auxiliary nut (334) and is in threaded connection with the auxiliary nut (334).

5. The high efficiency logistics transportation system of claim 1, wherein: Further comprising a limiting assembly (5), the limiting assembly (5) comprises a supporting rod (51), a connecting rod (52), a detection plate (53) and a width limiting rod (54), the supporting rod (51) and the connecting rod (52) are fixedly connected, the length direction of the supporting rod (51) is vertical, the length direction of the connecting rod (52) is perpendicular to the length direction of the supporting rod (51), the detection plate (53) is fixedly connected with the connecting rod (52), the width limiting rod (54) is hingedly connected with the detection plate (53), a vibration sensor (541) is installed on the detection plate (53), the vibration sensor (541) is used to send a signal when the goods contact with the width limiting rod (54), an adjusting bolt (531) is connected with the detection plate (53), the adjusting bolt (531) passes through the width limiting rod (54) and the detection plate (53) and is in threaded connection with the detection plate (53), an adjusting nut (532) is in threaded connection with one end of the adjusting bolt (531) which extends out of the detection plate (53), an adjusting spring (533) is coaxially arranged on the adjusting bolt (531), one end of the adjusting spring (533) abuts against the adjusting thread, and the other end abuts against one side of the detection plate (53) towards the adjusting nut (532), the vibration sensor (541) abuts against the width limiting rod (54).

6. The high efficiency logistics transport system of claim 1, wherein: The conveying mechanism (4) comprises a conveying assembly (41), the conveying assembly (41) comprises a second driving source, a transmission belt (412), a control wheel (413) and a fixing rod (414), the second driving source, the fixing rod (414) and the control wheel (413) are all fixedly connected to the top end of the lifting frame (1), the second driving source is used to control the rotation of the control wheel (413), the transmission belt (412) is arranged around the control wheel (413), one end of the transmission belt (412) is fixedly connected with the lifting car (11), and the fixing rod (414) is located on the side of the transmission belt (412) away from the control wheel (413) and is in contact with the transmission belt (412).

7. The high efficiency logistics transport system of claim 6, wherein: The transportation mechanism (4) further comprises an auxiliary assembly (43), the auxiliary assembly (43) comprises an auxiliary torsion spring (431), an auxiliary rod (433), a safety clamp (434), a matching rod (435) and a speed limiter (436), the speed limiter (436) is arranged at the top end of the elevator frame (1), the matching rod (435) is matched with the steel wire rope in the speed limiter (436), the safety clamp (434) is fixedly connected to the opposite sides of the elevator car (11), the auxiliary rod (433) is located in the elevator car (11) and is rotationally connected with the elevator car (11), the end of the auxiliary rod (433) is fixedly connected with a safety rod (439), the matching rod (435) is hinged with the safety rod (439), the safety rod (439) is matched with the safety clamp (434), the auxiliary torsion spring (431) is coaxially sleeved on the auxiliary rod (433), a plurality of adjusting holes (4311) for the one end of the auxiliary torsion spring (431) to pass out are formed on the elevator car (11), and the adjusting holes (4311) are circumferentially distributed along the one end of the auxiliary rod (433) extending out of the elevator car (11).

8. The high efficiency logistics transport system of claim 1, wherein: The bearing tray (21) and the auxiliary tray (22) are both provided with positioning grooves (23), and transition chamfers are arranged on the groove walls of the positioning grooves (23) and located at the groove openings.

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