Layer-changing elevator and warehousing system

Abstract

The utility model provides a layer changing elevator and a warehousing system. The layer changing elevator comprises a rack; the vehicle carrying system comprises a lifting mechanism and a plurality of vehicle carrying platforms, the vehicle carrying platforms are all used for bearing the shuttle vehicles and are all arranged on the rack in a liftable mode, the lifting mechanism is in driving connection with the vehicle carrying platforms so as to drive the vehicle carrying platforms to ascend and descend relative to the rack, and switching of the shuttle vehicles on the vehicle carrying platforms among different layers of the goods shelf is achieved. In this way, efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of warehouse logistics, in particular to a layer-changing lifting machine and a warehouse system. BACKGROUND

[0002] In some warehouse systems, a layer-changing lifting machine is used to drive a shuttle vehicle to switch between different layers of a rack, so as to realize cross-layer operation of the shuttle vehicle.

[0003] The layer-changing lifting machine drives the shuttle vehicle to ascend and descend and change layers through a vehicle carrying platform. In the related art, the layer-changing lifting machine only includes one vehicle carrying platform, and can only drive one shuttle vehicle to ascend and descend and change layers at a time, which affects efficiency. UTILITY MODEL CONTENT

[0004] The present application aims to provide a layer-changing lifting machine and a warehouse system with higher efficiency.

[0005] To achieve the above-mentioned purpose, the layer-changing lifting machine provided by the present application comprises:

[0006] a rack; and

[0007] a vehicle carrying system comprising a lifting mechanism and a plurality of vehicle carrying platforms, the plurality of vehicle carrying platforms are all used to carry a shuttle vehicle and are all arranged on the rack in a liftable manner, the lifting mechanism is drivingly connected with the plurality of vehicle carrying platforms to drive each vehicle carrying platform to ascend and descend relative to the rack, so as to realize switching of the shuttle vehicle on each vehicle carrying platform between different layers of a rack.

[0008] In some embodiments, the plurality of vehicle carrying platforms are arranged on the same side or opposite sides of the rack.

[0009] In some embodiments, the vehicle carrying platforms arranged on the same side of the rack comprise a first vehicle carrying platform and a second vehicle carrying platform adjacent to each other in the height direction, and the layer-changing lifting machine further comprises a distance measuring component, which detects the distance between the first vehicle carrying platform and the second vehicle carrying platform in the height direction.

[0010] In some embodiments, when the distance measuring component detects that the distance between the first vehicle carrying platform and the second vehicle carrying platform in the height direction is less than a safety distance, the first vehicle carrying platform and / or the second vehicle carrying platform reduces the lifting speed or suspends the lifting; and / or, the layer-changing lifting machine further comprises an alarm, which alarms when the distance measuring component detects that the distance between the first vehicle carrying platform and the second vehicle carrying platform in the height direction is less than a safety distance.

[0011] In some embodiments, the distance measuring component is arranged on each of the first vehicle carrying platform and the second vehicle carrying platform.

[0012] In some embodiments, the first vehicle carrier and / or the second vehicle carrier pause the lifting when a difference between the detection results of the distance measuring components on the first vehicle carrier and the second vehicle carrier exceeds a preset range; and / or, the layer changing lift includes an alarm that alarms when the difference between the detection results of the distance measuring components on the first vehicle carrier and the second vehicle carrier exceeds the preset range.

[0013] In some embodiments, at least one end of the vehicle carrier in the height direction is provided with a buffer for collision cushioning.

[0014] In some embodiments, the lifting mechanism includes a plurality of lifting driving mechanisms that are one-to-one drivingly connected to the plurality of vehicle carriers to respectively drive the plurality of vehicle carriers to lift.

[0015] In some embodiments, each of the plurality of lifting driving mechanisms includes a lifting power mechanism and a lifting transmission mechanism, and the lifting power mechanism is drivingly connected to the vehicle carrier through the lifting transmission mechanism.

[0016] In some embodiments, the lifting transmission mechanisms corresponding to the vehicle carriers on the same side of the rack are arranged side by side in the relative arrangement direction of the vehicle carriers and the rack; and / or, the lifting transmission mechanism includes a transmission member, and the lifting transmission mechanism is drivingly connected to the vehicle carrier through the transmission member, the transmission member extends in the height direction and includes a belt, a chain or a steel wire rope.

[0017] In some embodiments, the lifting transmission mechanism includes two transmission members, the two transmission members of the lifting transmission mechanism are arranged in a transverse direction and are both drivingly connected to the corresponding vehicle carrier, and the transverse direction is perpendicular to the height direction and the relative arrangement direction of the vehicle carriers and the rack.

[0018] In some embodiments, the rack includes two upright columns arranged in the transverse direction, and the two transmission members of the lifting transmission mechanism are one-to-one connected to the two upright columns.

[0019] In some embodiments, among the plurality of vehicle carriers, two different vehicle carriers are lifted in different height regions of the rack, or two different vehicle carriers are lifted in the entire height range of the rack.

[0020] In some embodiments, among the plurality of vehicle carriers, two different vehicle carriers are lifted in different height regions of the rack, and the lifting height regions of the vehicle carriers lifted in different height regions of the rack overlap.

[0021] In addition, the warehouse system provided in the present application includes a rack and further includes the layer changing lift of any of the embodiments.

[0022] Since the layer-changing elevator no longer includes only one car loading platform but includes multiple car loading platforms, the layer-changing elevator can no longer implement layer changing of only one shuttle vehicle each time but can implement layer changing of multiple shuttle vehicles at a time, which can effectively reduce the waiting of the shuttle vehicles for the layer-changing elevator and improve efficiency.

[0023] Other features and advantages of the present application will become apparent from the following detailed description of illustrative embodiments thereof, which proceeds with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the layer-changing elevator in the embodiments of the present application.

[0026] Figure 2 It is a schematic diagram of the structure of the layer-changing elevator at the two car loading platforms in the embodiments of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the layer-changing elevator at the first car loading platform in the embodiments of the present application.

[0028] Figure 4 It is a schematic diagram of the structure of the layer-changing elevator at the second car loading platform in the embodiments of the present application.

[0029] Figure 5 It is a schematic diagram of the structure of the layer-changing elevator at the bottom of the rack in the embodiments of the present application.

[0030] Figure 6 It is a schematic diagram of the structure of the layer-changing elevator at the top of the rack in the embodiments of the present application.

[0031] Figure 7 It is a first perspective schematic diagram of the car loading platform in the embodiments of the present application.

[0032] Figure 8 It is a second perspective schematic diagram of the car loading platform in the embodiments of the present application.

[0033] Explanation of reference signs:

[0034] 10, layer-changing elevator;

[0035] 1, rack; 11, column; 12, beam; 13, bottom plate;

[0036] 2, car loading system;

[0037] 3, vehicle loading platform; 31, support; 32, guide rail; 33, shuttle rail; 34, telescopic driving mechanism; 35, electric push rod; 36, connecting piece; 38, first vehicle loading platform; 39, second vehicle loading platform;

[0038] 4, lifting mechanism; 41, lifting driving mechanism; 42, lifting power mechanism; 43, lifting transmission mechanism; 44, motor; 45, coupling; 46, driving wheel; 47, driven wheel; 48, belt; 49, wheel adjusting device; 40, transmission piece;

[0039] 5, distance measuring component;

[0040] 6, buffer;

[0041] X, longitudinal direction; Y, transverse direction; Z, height direction. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without carrying out creative work fall within the scope of protection of the present application.

[0043] The technology, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification when appropriate.

[0044] In the description of the present application, it should be understood that the use of the words "first", "second" and the like to qualify elements is only for the convenience of distinguishing the corresponding elements, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0045] In the present application, "a plurality of" means at least two, i.e., including two and at least three, unless otherwise stated.

[0046] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0047] The layer-changing lifting machine is a carrying device for carrying the shuttle vehicle and driving the shuttle vehicle to perform layer-changing operation between layers of the rack. The layer-changing lifting machine is usually arranged at one end of a lane between two racks and comprises a rack, a vehicle carrying table and a lifting mechanism. The vehicle carrying table is arranged on the rack and is used for carrying the shuttle vehicle and is driven by the lifting mechanism to ascend and descend along the rack so as to drive the shuttle vehicle to ascend and descend and realize switching of the shuttle vehicle between different layers of the rack.

[0048] In the related art, the layer-changing lifting machine only comprises one vehicle carrying table and can only carry one shuttle vehicle to perform layer-changing operation at a time. In this case, the phenomenon of the shuttle vehicle waiting for the layer-changing lifting machine is prone to occur, which affects the efficiency, and the corresponding problem is more obvious when the layer / vehicle ratio (the number of layers of the rack in the lane / the number of vehicles in the lane) is larger.

[0049] In view of the above, the layer-changing lifting machine is provided.

[0050] Figures 1-8 The structure of the layer-changing lifting machine is exemplarily shown.

[0051] Referring to Figures 1-8 In the present application, the layer-changing lifting machine 10 comprises a rack 1 and a vehicle carrying system 2. The vehicle carrying system 2 comprises a lifting mechanism 4 and a plurality of vehicle carrying tables 3. The plurality of vehicle carrying tables 3 are all used for carrying the shuttle vehicle (not shown) and are all arranged on the rack 1 in a lifting manner. The lifting mechanism 4 is drivingly connected with the plurality of vehicle carrying tables 3 to drive each vehicle carrying table 3 to ascend and descend relative to the rack 1, so as to realize switching of the shuttle vehicle on each vehicle carrying table 3 between different layers of the rack (not shown).

[0052] Since the layer-changing lifting machine 10 no longer comprises only one vehicle carrying table 3 but comprises a plurality of vehicle carrying tables 3, and each vehicle carrying table 3 can carry the shuttle vehicle and drive the shuttle vehicle to ascend and descend under the driving of the lifting mechanism 4, the layer-changing lifting machine 10 can no longer realize layer-changing of only one shuttle vehicle at a time but can realize layer-changing of a plurality of shuttle vehicles at a time, which effectively reduces the waiting of the shuttle vehicle for the layer-changing lifting machine 10, and therefore, the efficiency is higher.

[0053] It can be seen that by increasing the number of vehicle carrying tables 3 in the layer-changing lifting machine 10 from one to a plurality, the warehouse logistics efficiency can be effectively improved.

[0054] Moreover, the efficiency can be improved by increasing the number of the vehicle platforms 3 in the same layer-changing hoist 10 without increasing the number of the layer-changing hoists 10, so that the floor space is not increased and the normal realization of other functions of the tunnel is not affected. For example, generally, a layer-changing hoist is arranged at one end of a tunnel and the other end of the tunnel is used as an entrance and exit of a maintenance passage. By increasing the number of the vehicle platforms 3 in the layer-changing hoist 10, the efficiency can be improved without adding a layer-changing hoist 10 at the other end of the tunnel, so that the other end of the tunnel can still be used as an exit of a maintenance passage and the normal realization of the corresponding maintenance function is not affected.

[0055] Meanwhile, since the plurality of vehicle platforms 3 of the layer-changing hoist 10 share the same rack 1, the equipment cost can also be saved.

[0056] It can be seen that by increasing the number of the vehicle platforms 3 in the layer-changing hoist 10 from one to a plurality, the efficiency can be effectively improved at a lower cost without increasing the floor space.

[0057] The plurality of vehicle platforms 3 of the layer-changing hoist 10 can be extended by the rack 1 to the same side or to opposite sides, that is, the plurality of vehicle platforms 3 of the layer-changing hoist 10 can be arranged on the same side or opposite sides of the rack 1.

[0058] When the plurality of vehicle platforms 3 of the layer-changing hoist 10 are arranged on opposite sides of the rack 1, the plurality of vehicle platforms 3 of the layer-changing hoist 10 are divided into two groups, one group is arranged on a first side of the rack 1 and extended by the rack 1 to the first side, and the other group is arranged on a second side opposite to the first side of the rack 1 and extended by the rack 1 to the second side, wherein each group includes at least one vehicle platform 3. In this case, the two groups of vehicle platforms 3 are extended by the rack 1 to opposite sides of the rack 1 and respectively abut against the shelves on the two sides of the same tunnel, and the two groups of vehicle platforms 3 do not interfere with each other in the height direction Z, so that the two groups of vehicle platforms 3 can conveniently lift in the entire height range of the rack 1 to realize the layer changing of different shuttles in the entire height range of the shelves. For example, in some embodiments, the layer-changing hoist 10 only includes two vehicle platforms 3, and the two vehicle platforms 3 are arranged on opposite sides of the rack 1 and extended by the rack 1 to opposite sides in the horizontal direction. In this case, the lifting of the two vehicle platforms 3 does not interfere with each other, and both can lift in the entire height range of the rack 1, so that both can drive a shuttle to lift and change layers between all layers of the shelves. At this time, the layer changing range of the shuttle on each vehicle platform 3 is not limited, which can effectively meet the demand that each shuttle changes layers in the entire height range of the shelves.

[0059] When the multiple vehicle carrying platforms 3 of the layer changing elevator 10 are arranged on the same side of the rack 1, the multiple vehicle carrying platforms 3 of the layer changing elevator 10 are extended by the rack 1 towards the same side of the rack 1, in which case each vehicle carrying platform 3 is docked with the same rack and is used for the access of different shuttles to the same rack, and each vehicle carrying platform 3 is restricted in the height direction Z and is prone to interfere with each other during lifting, and thus it is difficult for each vehicle carrying platform 3 to lift in the entire height range of the rack 1. Therefore, each vehicle carrying platform 3 can be lifted in a different height range of the rack 1, for example, the lower vehicle carrying platform 3 is lifted only in the entire or partial height range below the highest position that can be reached by the upper adjacent vehicle carrying platform 3, and the upper vehicle carrying platform 3 is lifted only in the entire or partial height range above the lowest position that can be reached by the lower adjacent vehicle carrying platform 3, so as to effectively solve the lifting interference problem between each vehicle carrying platform 3 on the same side of the rack 1, and enable each vehicle carrying platform 3 on the same side of the rack 1 to lift in different height ranges to achieve the lifting and layer changing of different shuttles at one time.

[0060] Of course, the multiple vehicle carrying platforms 3 of the layer changing elevator 10 are not necessarily all arranged on the same side of the rack 1 or all arranged on the opposite sides of the rack 1, but a part of the vehicle carrying platforms 3 can be arranged on the same side of the rack 1 and the other part of the vehicle carrying platforms 3 can be arranged on the opposite sides of the rack 1. At this time, the multiple vehicle carrying platforms 3 of the layer changing elevator 10 are divided into two groups, and the two groups of vehicle carrying platforms 3 are arranged on the opposite sides of the rack 1 and are extended by the rack 1 towards the opposite sides of the rack 1, and at least one group of vehicle carrying platforms 3 includes multiple vehicle carrying platforms 3, for example, in some embodiments, the layer changing elevator 10 includes two groups of vehicle carrying platforms 3, the first group is arranged on the first side of the rack 1, is extended by the rack 1 towards the first side of the rack 1, and includes multiple vehicle carrying platforms 3, and the second group is arranged on the second side of the rack 1, is extended by the rack 1 towards the second side of the rack 1, and includes one vehicle carrying platform 3, in which case the multiple vehicle carrying platforms 3 of the first group are lifted only in the partial height range of the rack 1, and the vehicle carrying platform 3 of the second group can be lifted in the entire height range of the rack 1; for another example, in other embodiments, the layer changing elevator 10 includes two groups of vehicle carrying platforms 3, the first group is arranged on the first side of the rack 1, is extended by the rack 1 towards the first side of the rack 1, and includes multiple vehicle carrying platforms 3, and the second group is arranged on the second side of the rack 1, is extended by the rack 1 towards the second side of the rack 1, and includes multiple vehicle carrying platforms 3, in which case the multiple vehicle carrying platforms 3 of the first group and the second group are lifted only in the partial height range of the rack 1.

[0061] As can be seen, in the multiple vehicle carrying platforms 3 of the layer changing elevator 10, two different vehicle carrying platforms 3 can be lifted in different height ranges of the rack 1, or can be lifted in the entire height range of the rack 1. Among them, the former is particularly suitable for being arranged between each vehicle carrying platform 3 on the same side of the rack 1, and the latter is particularly suitable for being arranged between two vehicle carrying platforms 3 on the opposite sides of the rack 1.

[0062] The lifting height regions of the vehicle carrying tables 3 that are lifted in different height regions of the rack 1 can be completely separated or partially overlapped. When the lifting height regions of the vehicle carrying tables 3 that are lifted in different height regions of the rack 1 are partially overlapped, the lifting interference between different vehicle carrying tables 3 can be prevented, and the lifting range of each vehicle carrying table 3 can be maximized to meet the layer changing requirements of the shuttles on each vehicle carrying table 3. When there is an overlapping part between the lifting height regions of the vehicle carrying tables 3 that are lifted in different height regions of the rack 1, especially when there is an overlapping part between the lifting height regions of the vehicle carrying tables 3 that are located on the same side of the rack 1, the lifting interference between the two vehicle carrying tables 3 in the overlapping height region can be solved by controlling the two vehicle carrying tables 3 not to reach the same height in the overlapping region at the same time.

[0063] In the case where the layer changing hoist 10 includes vehicle carrying tables 3 arranged on the same side of the rack 1, referring to Figure 2 , the vehicle carrying tables 3 arranged on the same side of the rack 1 include a first vehicle carrying table 38 and a second vehicle carrying table 39 adjacent to each other in the height direction Z, and in some embodiments, the layer changing hoist 10 further includes a distance measuring component 5 that detects the distance between the first vehicle carrying table 38 and the second vehicle carrying table 39 in the height direction Z. In this way, the height distance between the two vehicle carrying tables 3 located on the same side of the rack 1 and adjacent to each other in the height direction Z can be determined in a timely and accurate manner, facilitating the control of the corresponding two vehicle carrying tables 3 to prevent collision and the like, and improving the safety and reliability of the layer changing process.

[0064] For example, in some embodiments, the first vehicle carrying table 38 and / or the second vehicle carrying table 39 reduce the lifting speed or pause the lifting when the distance measuring component 5 detects that the distance between the first vehicle carrying table 38 and the second vehicle carrying table 39 in the height direction Z is less than a safe distance; and / or the layer changing hoist 10 further includes an alarm (not shown) that alarms when the distance measuring component 5 detects that the distance between the first vehicle carrying table 38 and the second vehicle carrying table 39 in the height direction Z is less than a safe distance.

[0065] When the distance measuring component 5 detects that the distance between the first vehicle carrying table 38 and the second vehicle carrying table 39 in the height direction Z is less than a safe distance, it indicates that the distance between the first vehicle carrying table 38 and the second vehicle carrying table 39 is too close, and there is a risk of collision. In this case, the first vehicle carrying table 38 and / or the second vehicle carrying table 39 are controlled to reduce the lifting speed or pause the lifting, and / or the alarm is controlled to alarm, and the staff can take measures, which can effectively reduce the collision risk of the first vehicle carrying table 38 and the second vehicle carrying table 39, improve the operation safety, and prevent the structure of the layer changing hoist 10 from being damaged due to the collision of the first vehicle carrying table 38 and the second vehicle carrying table 39, and improve the structural reliability.

[0066] The distance measuring component 5 can be arranged in various ways. For example, in some embodiments, the distance measuring component 5 is arranged on the rack 1, or arranged on the vehicle carrying platform 3. When the distance measuring component 5 is arranged on the vehicle carrying platform 3, the distance measuring component 5 can be raised and lowered together with the vehicle carrying platform 3, thus making it more convenient to accurately detect the height distance between two adjacent vehicle carrying platforms 3.

[0067] When arranged on the vehicle carrying platform 3, the distance measuring component 5 can be arranged on only one of the first vehicle carrying platform 38 and the second vehicle carrying platform 39, or arranged on both the first vehicle carrying platform 38 and the second vehicle carrying platform 39, that is, the distance measuring component 5 can be arranged on only one of the first vehicle carrying platform 38 and the second vehicle carrying platform 39, or arranged on both the first vehicle carrying platform 38 and the second vehicle carrying platform 39.

[0068] When the distance measuring component 5 is arranged on both the first vehicle carrying platform 38 and the second vehicle carrying platform 39, the two distance measuring components 5 can be used as backup for each other and check each other, so that even if one distance measuring component 5 fails and cannot accurately detect, the other distance measuring component 5 can still be used for distance detection, and the collision of the first vehicle carrying platform 38 and the second vehicle carrying platform 39 can be more reliably prevented.

[0069] For example, in some embodiments, when the difference between the detection results of the distance measuring components 5 on the first vehicle carrying platform 38 and the second vehicle carrying platform 39 exceeds a predetermined range, the lifting of the first vehicle carrying platform 38 and / or the second vehicle carrying platform 39 is suspended; and / or the layer changing elevator 10 includes an alarm, which alarms when the difference between the detection results of the distance measuring components 5 on the first vehicle carrying platform 38 and the second vehicle carrying platform 39 exceeds a predetermined range.

[0070] When the difference between the detection results of the distance measuring components 5 on the first vehicle carrying platform 38 and the second vehicle carrying platform 39 exceeds a predetermined range, it indicates that at least one of the two distance measuring components 5 arranged on the first vehicle carrying platform 38 and the second vehicle carrying platform 39 has a problem and the detection result is not accurate. In this case, the lifting of the first vehicle carrying platform 38 and / or the second vehicle carrying platform 39 is suspended, and / or the alarm is controlled to alarm, so that the staff can take measures, which can effectively reduce the collision risk of the first vehicle carrying platform 38 and the second vehicle carrying platform 39, and improve the operation safety and structural reliability.

[0071] As a further improvement of the foregoing embodiments, see Figure 2The at least one end of the vehicle loading platform 3 in the height direction Z is provided with a buffer 6 to perform collision buffering. Since the buffer 6 is arranged at at least one of the upper and lower ends of the vehicle loading platform 3, if the vehicle loading platform 3 collides with an object (for example, an adjacent vehicle loading platform 3 or a structure on the top or bottom of the rack 1) on the upper side and / or the lower side during lifting, the buffer 6 can play a buffering role, reducing damage to the vehicle loading platform 3 itself or the object colliding with the vehicle loading platform 3, effectively improving operation safety and structural reliability.

[0072] In the foregoing embodiments, each vehicle loading platform 3 is lifted under the drive of the lifting mechanism 4. The lifting mechanism 4 can include only one lifting drive mechanism 41, so that each vehicle loading platform 3 is lifted under the drive of the same lifting drive mechanism 41, or the lifting mechanism 4 can include multiple lifting drive mechanisms 41, which are one-to-one drivingly connected with the multiple vehicle loading platforms 3 to drive each vehicle loading platform 3 to lift, respectively. When the lifting mechanism 4 includes multiple lifting drive mechanisms 41 which are one-to-one drivingly connected with the multiple vehicle loading platforms 3, it is more convenient to drive each vehicle loading platform 3 to lift independently.

[0073] As an example of the multiple lifting drive mechanisms 41, see Figures 2-8 The multiple lifting drive mechanisms 41 each include a lifting power mechanism 42 and a lifting transmission mechanism 43, and the lifting power mechanism 42 is drivingly connected with the vehicle loading platform 3 through the lifting transmission mechanism 43. In this way, by controlling the start-stop, running speed and running direction of each lifting power mechanism 42, the lifting of each vehicle loading platform 3, the lifting speed and the lifting direction can be controlled, which is simple and convenient.

[0074] The structure of the lifting transmission mechanism 43 can be various. For example, in some embodiments, the lifting transmission mechanism 43 includes a transmission member 40, the lifting transmission mechanism 43 is drivingly connected with the vehicle loading platform 3 through the transmission member 40, the transmission member 40 extends along the height direction H and includes a belt 48, a chain or a steel wire rope. The transmission member 40 including the belt 48, the chain or the steel wire rope extends along the height direction Z, and the vehicle loading platform 3 is connected to the belt 48, the chain or the steel wire rope, so as to be driven by the belt 48, the chain or the steel wire rope to lift, which is simple and convenient.

[0075] Further, see Figures 1-6In some embodiments, the lifting transmission mechanism 43 includes two transmission components 40. The two transmission components 40 of the lifting transmission mechanism 43 are arranged at intervals along the transverse Y direction (i.e., the direction perpendicular to the height direction H and the relative arrangement direction of the vehicle platform 3 and the frame 1), and are both drivenly connected to the corresponding vehicle platform 3. In this case, different vehicle platforms 3 correspond to different transmission components 40, and each vehicle platform 3 is not lifted and lowered only by one transmission component 40, but by two transmission components 40 arranged at intervals along the transverse Y direction. This is more conducive to improving the lifting and lowering stability of each vehicle platform 3 and realizing a smoother independent lifting and lowering process for each vehicle platform 3.

[0076] Furthermore, see Figures 1-6 In some embodiments, the frame 1 includes two columns 11, which are arranged at a lateral Y-interval. The two transmission components 40 of the lifting transmission mechanism 43 are connected to the two columns 11 in a one-to-one correspondence. In this way, each vehicle platform 3 is mounted on the two columns 11 of the frame 1 and is lifted and lowered under the guidance of the two columns 11. Each vehicle platform 3 shares a pair of columns 11, which is simple in structure, low in cost, and provides smooth lifting and lowering.

[0077] In the case where the floor-changing elevator 10 includes a car platform 3 located on the same side of the frame 1, see Figures 2-6 In some embodiments, the lifting transmission mechanisms 43 corresponding to the vehicle platforms 3 located on the same side of the frame 1 are arranged side by side in the relative arrangement direction of the vehicle platforms 3 and the frame 1. In this way, the lifting transmission mechanisms 43 corresponding to each vehicle platform 3 located on the same side of the frame 1 are compactly arranged and do not interfere with each other, which can more conveniently drive each vehicle platform 3 located on the same side of the frame 1 to lift independently.

[0078] Next, combine Figures 1-8 The embodiments shown further illustrate this application.

[0079] For ease of description, Figure 1 The label indicates three directions: height (Z), longitudinal (X), and transverse (Y). Height (Z) aligns with the vertical direction of the shelving and aisles, and is also the up-down direction. Longitudinal (X) and transverse (Y) are two horizontal directions perpendicular to height (Z). Longitudinal (X) aligns with the extension / retraction direction of the loading platform 3, while transverse (Y) is perpendicular to both longitudinal (X) and height (Z).

[0080] like Figures 1-8 As shown, in this embodiment, the floor-changing elevator 10 includes a frame 1, a vehicle-carrying system 2, a distance measuring component 5, and a buffer component 6. The vehicle-carrying system 2 includes a lifting mechanism 4 and a vehicle-carrying platform 3.

[0081] Frame 1 provides support. Figures 1-6It can be seen that, in this embodiment, the rack 1 comprises the cross beam 12 and two upright columns 11, the two upright columns 11 each extend along the height direction Z and are spaced apart along the lateral direction Y and opposite to each other, and the cross beam 12 is connected to the top ends of the two upright columns 11, so that the rack 1 as a whole forms a gantry frame. As shown in the figure, Figure 5 In this embodiment, the bottom ends of the two upright columns 11 are further provided with a bottom plate 13. In this way, the two upright columns 11 can serve as a shuttle track for guiding the lifting of the vehicle carrying platform 3, and the cross beam 12 and the bottom plate 13 can be used for mounting the lifting mechanism 4.

[0082] The vehicle carrying platform 3 is arranged on the rack 1 in a liftable manner and is used for carrying and driving the shuttle to lift and change layers. As shown in the figure, Figures 7-8 In this embodiment, the vehicle carrying platform 3 comprises a support 31, two guide rails 32, two shuttle tracks 33, a telescopic driving mechanism 34 and two connecting members 36. The support 31 is connected to the lifting mechanism 4 through the two connecting members 36, specifically, the support 31 is connected to the lifting mechanism 4 through two connecting members 36 corresponding to the two upright columns 11, so that the liftable arrangement of the vehicle carrying platform 3 on the rack 1 and the driving connection between the vehicle carrying platform 3 and the lifting mechanism 4 can be realized, and the vehicle carrying platform 3 can be lifted on the rack 1 under the driving of the lifting mechanism 4. The two guide rails 32 are spaced apart along the lateral direction Y on the support 31, and each guide rail 32 is provided above with a shuttle track 33 for supporting the shuttle and movable along the longitudinal direction X, so that the vehicle carrying platform 3 comprises two shuttle tracks 33 for supporting the shuttle, and the two shuttle tracks 33 are spaced apart along the lateral direction Y and movably arranged on the support 31 along the longitudinal direction X. The telescopic driving mechanism 34 is drivingly connected to the two shuttle tracks 33 to drive the two shuttle tracks 33 to approach or move away from the rack. Specifically, Figure 7 and Figure 8 It can be seen that, in this embodiment, the telescopic driving mechanism 34 comprises an electric push rod 35, and the electric push rod 35 is drivingly connected to the two shuttle tracks 33, so that when the electric push rod 35 is telescoped, the two shuttle tracks 33 can be driven to move on the two guide rails 32 along the longitudinal direction X to approach or move away from the rack.

[0083] In the working process, when the vehicle carrying platform 3 reaches a certain layer of the rack under the driving of the lifting mechanism 4, the shuttle track 33 is extended and connected to the rack track on the rack, so that the shuttle on the vehicle carrying platform 3 can enter and exit the rack and the vehicle carrying platform 3, and the layer changing of the shuttle is realized.

[0084] As shown in the figure, Figures 1-6As shown, in this embodiment, the layer-changing hoist 10 no longer includes only one vehicle carrying platform 3, but includes two vehicle carrying platforms 3, which are arranged side by side along the height direction Z on the same side of the frame 1, forming a first vehicle carrying platform 38 at the lower layer and a second vehicle carrying platform 39 at the upper layer. In this way, the first vehicle carrying platform 38 and the second vehicle carrying platform 39 are arranged on the same side of the frame 1 and adjacent to each other in the height direction Z.

[0085] By providing two vehicle carrying platforms 3, the layer-changing hoist 10 can carry two shuttles at a time for layer changing, thus being more efficient.

[0086] In order to conveniently drive the two vehicle carrying platforms 3 to independently ascend and descend, as shown, Figures 2-6 in this embodiment, the lifting mechanism 4 includes two lifting drive mechanisms 41, which are arranged on the frame 1 and are in one-to-one driving connection with the two vehicle carrying platforms 3 to drive the two vehicle carrying platforms 3 to independently ascend and descend.

[0087] Specifically, as shown, Figures 2-6 in this embodiment, the two lifting drive mechanisms 41 are arranged side by side along the longitudinal direction X (which is also the relative arrangement direction of the vehicle carrying platform 3 and the frame 1 and the extension direction of the vehicle carrying platform 3), and each includes a lifting power mechanism 42 and a lifting transmission mechanism 43.

[0088] The lifting power mechanism 42 is arranged on the bottom plate 13 and includes a motor 44, which is in driving connection with the vehicle carrying platform 3 through the lifting power mechanism 42 to provide power for the lifting of the vehicle carrying platform 3.

[0089] The lifting transmission mechanism 43 includes two sets of transmission assemblies, which are arranged opposite to each other along the transverse direction Y and correspond to the two vertical columns 11, and each set of transmission assemblies includes a coupling 45, a driving wheel 46, a driven wheel 47, a belt 48 (such as a synchronous belt or a flat belt), and a wheel adjusting device 49. The coupling 45 is arranged on the bottom plate 13 and is in driving connection with the motor 44 and the driving wheel 46. The driving wheel 46 and the driven wheel 47 are arranged on the bottom plate 13 and the cross beam 12, respectively, and are in driving connection through the belt 48 wrapped around the outer periphery of the two. The wheel adjusting device 49 is arranged at the driven wheel 47. The belt 48 serves as a transmission member 40, which is connected with the connecting member 36 of the vehicle carrying platform 3 to realize the driving connection between the lifting transmission mechanism 43 and the vehicle carrying platform 3.

[0090] Based on the above arrangement, the lifting mechanism 4 of this embodiment includes four belt transmission mechanisms, which are divided into two groups. The two groups of belt transmission mechanisms are arranged side by side along the longitudinal direction X (which can be referred to as front and rear arrangement), and each group of belt transmission mechanisms includes two belt transmission mechanisms arranged at intervals along the transverse direction Y (which can be referred to as left and right arrangement), and is in driving connection with the vehicle carrying platform 3 through the belts 48 of the two belt transmission mechanisms thereof.

[0091] Specifically, by Figures 2-4 It can be seen that, in this embodiment, the first vehicle carrying platform 38 located at the lower layer is connected to the two belt drive belts 48 arranged rearward (i.e., close to the column 11 in the longitudinal direction X) through its own two connecting members 36, while the second vehicle carrying platform 39 located at the upper layer is connected to the two belt drive belts 48 arranged forward (i.e., away from the column 11 in the longitudinal direction X) through its own two connecting members 36.

[0092] Based on the above arrangement, the two lifting driving mechanisms 41 are compact in layout and do not interfere with each other, and can conveniently drive the first vehicle carrying platform 38 and the second vehicle carrying platform 39 to independently lift.

[0093] In operation, the two lifting driving mechanisms 41 can be controlled and scheduled by the same controller (e.g., PLC), wherein when the rear motor 44 is started, the rear two shaft couplings 45 can drive the rear two belt driving mechanisms to operate, and the first vehicle carrying platform 38 located at the lower layer is lifted by the two rear belts 48, while when the front motor 44 is started, the front two shaft couplings 45 can drive the front two belt driving mechanisms to operate, and the second vehicle carrying platform 39 located at the upper layer is lifted by the two front belts 48, so that one shuttle vehicle can be lifted and changed layer by the first vehicle carrying platform 38 and the second vehicle carrying platform 39 respectively, which is simple and convenient, and has high efficiency.

[0094] In the above lifting and layer changing process, in order to facilitate real-time determination of the position of each vehicle carrying platform 3, the embodiment is equipped with a position detection device (not shown) for each vehicle carrying platform 3 to detect the absolute position of each vehicle carrying platform 3 in real time. Specifically, in this embodiment, the position detection device includes a position sensor and an origin sensor, and the position sensor includes one or more of a combination of an encoder, a laser ranging sensor, a barcode strip, and a code scanner. In this way, the real-time height position of each vehicle carrying platform 3 can be determined in time and accurately, so as to determine whether the vehicle carrying platform 3 has reached the target layer of the shelf.

[0095] In addition, in order to prevent the first vehicle carrying platform 38 and the second vehicle carrying platform 39 from colliding during lifting, as Figure 2 shown, in this embodiment, the two vehicle carrying platforms 3 of the first vehicle carrying platform 38 and the second vehicle carrying platform 39 are each provided with a distance measuring component 5, which detects the height distance between the first vehicle carrying platform 38 and the second vehicle carrying platform 39 in real time, so as to effectively prevent the first vehicle carrying platform 38 and the second vehicle carrying platform 39 from colliding according to the distance detection result.

[0096] Specifically, in this embodiment, the ranging component 5 installed on the first vehicle platform 38 detects the height distance L1 between the first vehicle platform 38 and the second vehicle platform 39, and the ranging component 5 installed on the second vehicle platform 39 detects the height distance L2 between the second vehicle platform 39 and the first vehicle platform 38. When L1 or L2 is less than the safety distance L0 (i.e., L1 < L0, or L2 < L0), the controller controls the alarm to sound and controls the first vehicle platform 38 and the second vehicle platform 39 to slow down or stop lifting, so as to effectively prevent the first vehicle platform 38 and the second vehicle platform 39 from colliding.

[0097] Furthermore, in this embodiment, the controller also performs real-time comparison of the detection results of the two ranging components 5, and calculates the difference between L1 and L2. ( = When the distance exceeds the set range, the control alarm will sound or the lifting of the first vehicle platform 38 and the second vehicle platform 39 will be suspended to prevent the first vehicle platform 38 and the second vehicle platform 39 from colliding due to the failure of either of the two ranging components 5.

[0098] In addition, such as Figure 2 As shown, in this embodiment, both the upper and lower ends of the first vehicle platform 38 and the second vehicle platform 39 are provided with buffers 6 (e.g., rubber parts). In this way, when the first vehicle platform 38 and the second vehicle platform 39 collide, when the first vehicle platform 38 collides with the structure on the base plate 13, or when the second vehicle platform 39 collides with the structure on the crossbeam 12, the buffers 6 can play a buffering role and effectively reduce structural damage caused by accidental collisions.

[0099] The first vehicle platform 38 and the second vehicle platform 39 in this embodiment can operate in two different modes. The first working mode is a zoned operation mode. In this mode, the entire height range of the shelf is divided into N lifting zones (N is the same as the number of vehicle platforms 3). Two adjacent lifting zones can partially overlap. Each vehicle platform 3 is responsible for the layer-changing operation of the shuttle within its lifting zone. For example, for the layer-changing elevator 10 in this embodiment, assuming the total height of the shelf is 45 layers, it can be divided into two lifting zones. One lifting zone is for the first vehicle platform 38 to operate, corresponding to layers 1-23 of the shelf, and the other lifting zone is for the second vehicle platform 39 to operate, corresponding to layers 23-45 of the shelf. At this time, the first vehicle platform 38 and the second vehicle platform 39 lift in separate zones, and their lifting zones overlap on the 23rd layer, forming an area that can be reached by both the first vehicle platform 38 and the second vehicle platform 39. The second working mode is a non-zoned operation mode. In this mode, the entire height range of the shelf is not pre-zoned, and all vehicle platforms 3 can lift within their own reachable height range. The system performs overall scheduling according to the task situation.

[0100] In summary, the layer-changing elevator 10 of the embodiment has two car platforms 3 sharing one frame 1 and can be independently lifted to perform the layer-changing operation of the shuttle car, which can improve the efficiency of the single lane without increasing the floor space and affecting the normal realization of other functions of the lane, and can also save the cost of equipment.

[0101] Based on the layer-changing elevator 10 of the foregoing embodiments, the application further provides a storage system, which comprises shelves and further comprises the layer-changing elevator 10 of any of the embodiments. The layer-changing elevator 10 can be arranged at one end of the shelf, so that the lane formed by two adjacent shelves is provided with the layer-changing elevator 10 at only one end, and the other end still serves as the entrance and exit of the maintenance passage, thereby improving the efficiency without increasing the number of layer-changing elevators 10, affecting the realization of the maintenance function, and increasing the floor space.

[0102] The above only describes exemplary embodiments of the application and is not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A change level hoist (10) characterized by, The application relates to a layer-changing lifting machine (10) for a storage and retrieval system (1), comprising: a rack (1); and a vehicle carrying system (2) comprising a lifting mechanism (4) and a plurality of vehicle carrying platforms (3), each of which is used for carrying a shuttle vehicle and is arranged on the rack (1) in a lifting manner, the lifting mechanism (4) is drivingly connected with the plurality of vehicle carrying platforms (3) to drive each of the vehicle carrying platforms (3) to lift relative to the rack (1) to realize the switching of the shuttle vehicle on each of the vehicle carrying platforms (3) between different layers of the rack. The plurality of vehicle carrying platforms (3) are arranged on the same side or opposite sides of the rack (1).

2. The cross-level hoist (10) according to claim 1, characterized in that The vehicle carrying platforms (3) arranged on the same side of the rack (1) comprise a first vehicle carrying platform (38) and a second vehicle carrying platform (39) adjacent to each other in the height direction (Z), and the layer-changing lifting machine (10) further comprises a distance measuring component (5) for detecting the distance between the first vehicle carrying platform (38) and the second vehicle carrying platform (39) in the height direction (Z).

3. The cross-level hoist (10) according to claim 2, characterized in that When the distance between the first vehicle carrying platform (38) and the second vehicle carrying platform (39) in the height direction (Z) detected by the distance measuring component (5) is less than a safety distance, the first vehicle carrying platform (38) and / or the second vehicle carrying platform (39) reduces the lifting speed or suspends the lifting; and / or, the layer-changing lifting machine (10) further comprises an alarm which alarms when the distance between the first vehicle carrying platform (38) and the second vehicle carrying platform (39) in the height direction (Z) detected by the distance measuring component (5) is less than a safety distance.

4. The cross-level hoist (10) according to claim 3, characterized in that The distance measuring component (5) is arranged on each of the first vehicle carrying platform (38) and the second vehicle carrying platform (39).

5. The cross-level hoist (10) according to claim 3, characterized in that When the difference between the detection results of the distance measuring components (5) on the first vehicle carrying platform (38) and the second vehicle carrying platform (39) exceeds a preset range, the first vehicle carrying platform (38) and / or the second vehicle carrying platform (39) suspends the lifting; and / or, the layer-changing lifting machine (10) comprises an alarm which alarms when the difference between the detection results of the distance measuring components (5) on the first vehicle carrying platform (38) and the second vehicle carrying platform (39) exceeds a preset range.

6. The cross-level hoist (10) according to claim 5, characterized in that At least one end of the vehicle carrying platform (3) in the height direction (Z) is provided with a buffer (6) for collision buffering.

7. The cross-level hoist (10) according to claim 1, characterized in that The lifting mechanism (4) comprises a plurality of lifting driving mechanisms (41) which are drivingly connected with the plurality of vehicle carrying platforms (3) one by one to drive each of the vehicle carrying platforms (3) to lift.

8. The strata conveyor (10) according to any one of claims 1 to 7, characterised in that, Each of the plurality of lifting driving mechanisms (41) comprises a lifting power mechanism (42) and a lifting transmission mechanism (43), and the lifting power mechanism (42) is drivingly connected with the vehicle carrying platform (3) through the lifting transmission mechanism (43).

9. The cross-level hoist (10) according to claim 8, characterized in that ​ 10. The layer-changing hoist (10) according to claim 9, characterized in that The corresponding lifting transmission mechanisms (43) of the vehicle loading platforms (3) located on the same side of the rack (1) are arranged side by side in the relative arrangement direction of the vehicle loading platforms (3) and the rack (1); and / or, the lifting transmission mechanisms (43) comprise transmission members (40), the lifting transmission mechanisms (43) are drivingly connected with the vehicle loading platforms (3) through the transmission members (40), the transmission members (40) extend along the height direction (H) and comprise belts (48), chains or steel wires.

11. The cross-level hoist (10) according to claim 10, characterized in that The lifting transmission mechanisms (43) comprise two transmission members (40), the two transmission members (40) of the lifting transmission mechanisms (43) are arranged spaced apart along a transverse direction (Y) and are drivingly connected with corresponding vehicle loading platforms (3), the transverse direction (Y) is perpendicular to the height direction (H) and the relative arrangement direction of the vehicle loading platforms (3) and the rack (1).

12. The cross-level hoist (10) according to claim 11, characterized in that The rack (1) comprises two upright columns (11), the two upright columns (11) are arranged spaced apart along the transverse direction (Y), and the two transmission members (40) of the lifting transmission mechanisms (43) are connected with the two upright columns (11) in one-to-one correspondence.

13. The strata conveyor (10) according to any one of claims 1 to 7, characterised in that, Among the plurality of vehicle loading platforms (3), two different vehicle loading platforms (3) are lifted in different height regions of the rack (1), or two different vehicle loading platforms (3) are lifted in the entire height range of the rack (1).

14. The cross-level hoist (10) according to claim 13, characterized in that Among the plurality of vehicle loading platforms (3), two different vehicle loading platforms (3) are lifted in different height regions of the rack (1), and there is an overlapping part in the lifting height regions of the vehicle loading platforms (3) lifted in different height regions of the rack (1).

15. A warehousing system comprising a rack, characterized in that Also comprising the layer changing elevator (10) according to any one of claims 1-14. The corresponding lifting transmission mechanisms (43) of the vehicle loading platforms (3) located on the same side of the rack (1) are arranged side by side in the relative arrangement direction of the vehicle loading platforms (3) and the rack (1); and / or, the lifting transmission mechanisms (43) comprise transmission members (40), the lifting transmission mechanisms (43) are drivingly connected with the vehicle loading platforms (3) through the transmission members (40), the transmission members (40) extend along the height direction (H) and comprise belts (48), chains or steel wires. The lifting transmission mechanisms (43) comprise two transmission members (40), the two transmission members (40) of the lifting transmission mechanisms (43) are arranged spaced apart along a transverse direction (Y) and are drivingly connected with corresponding vehicle loading platforms (3), the transverse direction (Y) is perpendicular to the height direction (H) and the relative arrangement direction of the vehicle loading platforms (3) and the rack (1). The rack (1) comprises two upright columns (11), the two upright columns (11) are arranged spaced apart along the transverse direction (Y), and the two transmission members (40) of the lifting transmission mechanisms (43) are connected with the two upright columns (11) in one-to-one correspondence. Among the plurality of vehicle loading platforms (3), two different vehicle loading platforms (3) are lifted in different height regions of the rack (1), or two different vehicle loading platforms (3) are lifted in the entire height range of the rack (1). Among the plurality of vehicle loading platforms (3), two different vehicle loading platforms (3) are lifted in different height regions of the rack (1), and there is an overlapping part in the lifting height regions of the vehicle loading platforms (3) lifted in different height regions of the rack (1). Also comprising the layer changing elevator (10) according to any one of claims 1-14.

Images