Early arrival luggage storage stereoscopic warehouse system

Abstract

The invention relates to the technical field of early-arrival luggage storage equipment, in particular to an early-arrival luggage storage stereoscopic warehouse system which comprises a four-way vehicle, a goods shelf, an elevator and a platform conveyor. The goods shelf is used for bearing the four-way vehicle to run on a track of the goods shelf, and the four-way vehicle places trays and luggage to a specified storage position; one or more four-way vehicles are arranged on each layer of goods shelf according to the requirement of the luggage storage amount; the elevators are arranged at the ends of the goods shelves and used for elevating trays and luggage, and four-direction vehicle layer changing is achieved through cooperation of the two elevators. The platform conveyors are arranged at the two ends of the goods shelf and used for transporting trays and luggage. The four-way vehicle comprises a main vehicle frame, a sub-vehicle frame, a lifting device and a pallet fork telescopic device. According to the method, the structure that the luggage arrives at the warehouse early is optimized, the stability of the structure is guaranteed through optimization of the four-way shuttle vehicle, meanwhile, the endurance time is prolonged, the overall structure complexity is lowered, the maintenance time is shortened, the cost is lowered, the difficulty is lowered, and therefore the working efficiency of the luggage in-out peak period can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of early luggage storage equipment, and in particular to a vertical warehouse system for storing early luggage. Background Art

[0002] The existing early baggage warehouse is usually a stacker warehouse or a multi-pass garage. Each lane or each shelf can only be equipped with one stacker or multi-pass vehicle. However, during the peak period of baggage in and out of the warehouse, the efficiency cannot meet the usage requirements. To achieve a certain efficiency, usually only the number of cargo spaces served by a single stacker or multi-pass vehicle can be reduced to overcome this problem.

[0003] The existing light-loaded four-way shuttle vehicles are usually used for the transportation of materials and other items. The goods are mainly stored and retrieved through the forks on the vehicle, and the vehicle is operated in the X and Y directions through two sets of travel transmission systems. That is, the luggage four-way vehicle is mainly composed of a vehicle body (divided into an upper and lower vehicle body, each with a set of travel transmission systems), forks, travel wheels, lifting mechanisms, drive mechanisms, etc., wherein the lifting mechanism is installed between the upper vehicle body and the lower vehicle body, so that the upper vehicle body is vertically displaced relative to the lower vehicle body, and the forks can autonomously clamp and pick up and release goods, or drag and pick up and release goods through the fork front fingers. Since the vehicle body needs to be equipped with a set of transmission systems when traveling in two dimensions, the internal structure of the vehicle body is complicated, so the space left for batteries and other components inside the vehicle body is small, which affects the selection of electronic control and battery components and limits the battery life. The fork needs to perform the fork extension task as well as the clamping or rotating fork finger mechanism task, which undoubtedly further increases the complexity of the vehicle body, reduces the battery size, and further reduces the battery life of the four-way shuttle vehicle. In addition, the large number of mechanisms will increase the difficulty of vehicle processing, assembly and maintenance, while also reducing the reliability of the entire system. Summary of the invention

[0004] The purpose of the present invention is to provide a vertical warehouse system for storing early baggage, and to optimize the structure of the early baggage warehouse. The optimization of the four-way shuttle ensures the stability of the structure while improving the endurance time, reducing the overall structural complexity and maintenance time, cost and difficulty, thereby improving the work efficiency during the peak period of baggage in and out of the warehouse.

[0005] In order to achieve the above-mentioned purpose, a system for storing early baggage in a vertical warehouse is provided, including a four-way vehicle, a shelf, an elevator and a platform conveyor;

[0006] The rack is used to carry the four-way vehicle running on its track, and the four-way vehicle places the pallet and luggage to the designated storage location; one or more four-way vehicles are arranged on each shelf according to the luggage storage capacity requirements;

[0007] The elevator is arranged at the end of the rack to lift pallets and luggage, and the cooperation of two elevators can realize four-way vehicle layer change;

[0008] Platform conveyors are arranged at both ends of the racks to transport pallets and luggage, and are used by four-way vehicles to pick up pallets and luggage from above;

[0009] The four-way vehicle comprises a main frame, a sub-frame, a lifting device and a fork telescopic device; the frame body adopts two steel pipes as a skeleton to connect the body parts at both ends, the body parts are provided with a control module and a battery, the fork telescopic device is arranged on the relatively inner side surfaces of the body parts at both ends, and the outer side surfaces of the body parts are provided with main running wheels; the main frame is arranged on the upper side of the sub-frame, and sub-running wheels are arranged on both sides of the sub-frame, and the main running wheels and sub-running wheels share a set of transmission devices to respectively realize X-direction movement and Y-direction movement; the lifting device is arranged between the main frame and the sub-frame for lifting the main frame to realize the switching of X-direction movement and Y-direction movement, and for realizing the picking and placing of pallets and luggage by lifting the fork telescopic device; the transmission device adopts a transmission layout coordinated with a single motor, a transmission shaft, a universal joint, a long coupling and a commutator, and the long coupling and the two steel pipes are used as a skeleton.

[0010] Furthermore, the sub-frame body includes two groups of lifting brackets, and the left and right end surfaces of the lifting brackets are respectively provided with a group of two sub-traveling wheels, and the sub-traveling wheels in the same group are driven by belts. The upper end surface of the lifting bracket is used to install a lifting device, and the upper end of the lifting device is connected to the lower end surface of the vehicle body component.

[0011] Furthermore, the single motor of the transmission device is a double-axle extension motor, which is fixed to the lower side of the vehicle body component, and the connecting structures on both sides of the double-axle extension motor are symmetrically arranged, wherein one side of the rotating shaft is connected to the first commutator arranged on the lower side of the vehicle body component through a transmission shaft, and the first commutator is a T-type commutator, one end of the output end is connected to the main walking wheel on the same side, and the other end of the output end is connected to the second commutator through a first telescopic universal joint; the second commutator is a T-type commutator, one end of the output end is connected to the sub-walking wheel at the end of the lifting bracket on the same side, and the other end of the output end is connected to the third commutator through a long coupling; the third commutator is a T-type commutator, one end of the output end is connected to the sub-walking wheel at the end of the lifting bracket on the same side, and the other end of the output end is connected to the main walking wheel on the same side through a second telescopic universal joint.

[0012] Furthermore, the lifting device includes a lifting motor, a long lifting transmission coupling, a second short coupling, a first lifting commutator, a second lifting commutator and two sets of lifting mechanisms. The long lifting transmission coupling and the second short coupling are distributed on both sides of the lifting motor. One end of the second short coupling is connected to the output end of the lifting motor, and the other end is connected to the first lifting commutator. The other end of the first lifting commutator is connected to the lifting mechanism on one side; one end of the long lifting transmission coupling is connected to the output end of the lifting motor, and the other end is connected to the second lifting commutator. The other end of the second lifting commutator is connected to the lifting mechanism on the other side.

[0013] Further, the jacking mechanism includes a left fork arm linkage mechanism, a right fork arm linkage mechanism, a connecting piece, a screw, a first short coupling, a transmission shaft, a bearing seat and a third telescopic universal joint, the left fork arm linkage mechanism is connected to the right fork arm linkage mechanism through a long strip connecting piece, the bearing seat is installed in the middle of the connecting piece, the left fork arm linkage mechanism includes an upper top plate, an upper fork arm, a screw moving end mounting block, a screw fixed end mounting block, a lower fork arm and a bottom plate, and the two ends of the upper fork arm are respectively hinged between the upper top plate and the screw moving end mounting block, and between the upper top plate and the screw fixed end mounting block. The two ends of the lower fork arm are respectively hinged between the mounting block of the movable end of the screw and the base plate, and between the mounting block of the fixed end of the screw and the base plate; the left fork arm connecting rod mechanism and the right fork arm connecting rod mechanism have similar structures, one end of the third telescopic universal joint is connected to the first lifting commutator or the second lifting commutator, and the other end is connected to the transmission shaft, the transmission shaft is installed in the bearing seat, and the other end is connected to the screw through the first short coupling; the rotation of the screw drives the movable end of the screw to move linearly, drives the left fork arm connecting rod mechanism and the right fork arm connecting rod mechanism to move, and realizes the rising and falling of the upper top plate.

[0014] Furthermore, the hubs of the main running wheels and the sub-running wheels are made of aluminum alloy, the wheel guide adopts rim self-guided, the rim and the hub are integrated, the rim has a taper, and the position where the track contacts the rim is also set to be chamfered.

[0015] Furthermore, the shelf includes a main track, a sub-track and a reversing track, the sub-track is distributed in the storage channel of the shelf; the main track is distributed in the reversing channel of the shelf; the reversing track is aligned with the sub-track and arranged on the inner side of the main track; the reversing track is provided with a notch at the intersection with the main track for the main walking wheel to pass.

[0016] Furthermore, the platform conveyor includes a motorized roller, an unpowered roller, a frame and a baffle, wherein the motorized roller serves as a conveying power source and conveys luggage together with the unpowered roller; the motorized roller and the unpowered roller are arranged on the upper surface of the frame, and the baffle is arranged on both sides of the motorized roller; two notched grooves for forks to extend into are arranged on one side of the upper surface of the frame, and the notched grooves are used to cooperate with a four-way vehicle to pick up and place goods in a lifting manner.

[0017] Furthermore, a support plate for supporting a tray and luggage is provided between the body parts at both ends of the four-way vehicle, and the support plate is mounted on two steel pipes.

[0018] Principles and advantages:

[0019] 1. The four-way vehicle frame of this scheme uses two high-strength steel pipes as the skeleton and adopts a unique transmission layout, so that the middle cargo-carrying part of the four-way vehicle can be sunk, which is convenient for arranging the main motors, electronic control components, batteries and other parts at both ends of the vehicle, greatly reducing the occupancy rate of the vertical space of the luggage early arrival storage warehouse when the vehicle is transporting goods, and improving the overall utilization rate of the luggage early arrival storage warehouse space. Among them, the use of two high-strength steel pipes and the long coupling in the transmission layout as the skeleton makes the four-way vehicle body have a certain degree of torsional freedom, which can adapt to the uneven track surface, reduce the bumps caused by the uneven track surface of the four-way vehicle, and reduce the failures and risks that may be caused by the bumps of the four-way vehicle. In addition, the control module and the transmission mechanism are arranged separately, which simplifies the structure of the vehicle body and reduces the complexity of the interior of the vehicle body. While facilitating the subsequent maintenance of the vehicle, it also increases the internal space of the vehicle body, can be equipped with a larger battery, and can improve the endurance of the vehicle.

[0020] 2. This solution adopts a transmission layout that cooperates with a drive shaft, telescopic universal joints, long couplings and commutators. Only one motor is needed to provide all wheels with walking power, which is beneficial for the vehicle body to pass through positions such as track joints, and has low wear. It is better than the currently commonly used two-wheel drive solution, and compared with the currently commonly used transmission methods such as synchronous belts, chains, gears, etc., the solution of this application has high transmission efficiency, high reliability and is maintenance-free.

[0021] 3. The connection setting of the lifting bracket and the lifting device can complete the reversal of the four-way vehicle through the lifting and lowering movement of the lifting device. Compared with the conventional four-way vehicle, the force-bearing surface between the lifting bracket and the lifting device is larger, and the lifting and lowering is more stable and reliable than the conventional four-way vehicle. The lifting device can not only realize the reversal of the four-way vehicle, but also act on the fork telescopic device, so that the fork telescopic device can pick up and place goods from the shelf or platform conveyor by lifting, so there is no need for the clamping mechanism of the traditional four-way vehicle to clamp the luggage and goods. This makes the structure of the four-way vehicle more streamlined.

[0022] 4. The main body of the lifting device of this solution is composed of a hinge connecting rod mechanism, and the linear motion of the moving end of the lead screw drives the left and right fork arm connecting rod mechanisms to achieve the rise and fall of the lifting device. Compared with the conventional four-way vehicle lifting device using a cam and other structures, the lifting device of this application has a more stable structure and more uniform force, making the four-way vehicle work more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic diagram of a vertical storage system for early luggage according to an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the local structure of the shelf;

[0025] Figure 3 It is a structural schematic diagram of a four-way vehicle;

[0026] Figure 4 A schematic diagram of the bottom surface of the main frame;

[0027] Figure 5 is a schematic diagram of the structure of the sub-frame;

[0028] Figure 6 is a schematic diagram of the structure of the transmission device;

[0029] Figure 7 It is a structural schematic diagram of the lifting device;

[0030] Figure 8 It is a structural schematic diagram of a group of lifting mechanisms in the lifting device;

[0031] Fig. 9 It is a schematic diagram of the state where the four-way vehicle is located at the initial position of the shelf;

[0032] Fig.10 A schematic diagram of the structure in which the main traveling wheels are lifted;

[0033] Fig.11 is a schematic diagram of a gap passing through the commutation rail;

[0034] Fig.12 A schematic diagram of a four-way vehicle entering a storage channel between shelf storage columns through a sub-track;

[0035] Fig.13 This is a schematic diagram of the fork extension device lifting the pallet to the cargo position;

[0036] Fig.14 It is a schematic diagram of resetting the forks of the fork telescopic device;

[0037] Fig.15 It is a schematic diagram of the four-way vehicle returning to the reversing track;

[0038] Fig.16 This is a schematic diagram of the four-way vehicle returning to the main track for operation;

[0039] Fig.17 This is a schematic diagram of the structure of the platform conveyor layout. DETAILED DESCRIPTION

[0040] The following is further described in detail through specific implementation methods:

[0041] The reference numerals in the drawings of the specification include: shelf 1, hoist 2, platform conveyor 2-1, main track 3, sub-track 4, cargo space bar 5, reversing track 6, battery 7, controller 8, body component 9, sub-travel wheel 10, long coupling 11, steel pipe 12, support plate 13, main travel wheel 14, fork telescopic long coupling 15, fork telescopic motor 16, lifting transmission long coupling 17, lifting motor 18, fork telescopic device 19, second commutator 20, lifting bracket 21, first commutator 22, double shaft extension motor 23, third commutator 2 4. Upper top plate 25, upper fork arm 26, lower fork arm 27, bottom plate 28, third telescopic universal joint 29, connector 30, right fork arm linkage 31, tray 32, notch 33, baffle 34, frame 35, notch groove 36, unpowered roller 37, electric roller 38, threading tube 39, first telescopic universal joint 40, second telescopic universal joint 41, second lifting commutator 42, bearing seat 43, transmission shaft 44, first short coupling 45, lead screw 46, lead screw moving end mounting block 47, lead screw fixed end mounting block 48, second short coupling 49.

[0042] Example

[0043] A vertical storage system for early baggage, basically Figure 1 As shown, it includes a four-way vehicle, a shelf 1, an elevator 2 and a platform conveyor 2-1; in this embodiment, the platform conveyor 2-1 is arranged at Figure 1 Behind the middle elevator 2. A total of 8 platform conveyors, 4 on each side. A total of 2 elevators 2, 1 on each side.

[0044] The rack 1 is used to carry a four-way vehicle running on its track, and the four-way vehicle places the pallet 32 ​​and the luggage to the designated storage location; one or more four-way vehicles are arranged on each shelf 1 according to the luggage storage capacity requirements;

[0045] like Figure 2 As shown, the shelf 1 includes a main track 3, a sub-track 4 and a reversing track 6, wherein the sub-track 4 is distributed in the storage channel between the cargo space columns 5 of the shelf 1; the main track 3 is distributed in the reversing channel of the shelf 1; the reversing track 6 is aligned with the sub-track 4 and arranged on the inner side of the main track 3; the reversing track 6 is provided with a notch 33 at the position where it intersects with the main track 3 for the main walking wheel 14 to pass through.

[0046] The elevator 2 is used to lift the tray 32 and the luggage, and the two elevators 2 cooperate to realize the four-way vehicle layer change;

[0047] like Figure 3 , Figure 4As shown, the four-way vehicle includes a main frame, a sub-frame, a lifting device and a fork telescopic device 19; the frame body uses two steel pipes 12 as a skeleton to connect the body parts 9 at both ends, and the body parts 9 are provided with a control module and a battery 7. The fork telescopic device 19 is arranged on the relative inner side surfaces of the body parts 9 at both ends, and the outer side surface of each body part 9 is provided with two regularly distributed main walking wheels 14.

[0048] The main frame and the sub-frame adopt an upper and lower double-layer design. The main frame is arranged on the upper side of the sub-frame. Sub-traveling wheels 10 are arranged on both sides of the sub-frame. The main traveling wheels 14 and the sub-traveling wheels 10 share a set of transmission devices to respectively realize X-direction movement and Y-direction movement; the lifting device is arranged between the main frame and the sub-frame to lift the main frame to realize the switching of X-direction movement and Y-direction movement, and to realize the picking and placing of the pallet 32 ​​and luggage by lifting the fork telescopic device 19; the transmission device adopts a transmission layout in which a single motor, a transmission shaft, a universal joint, a long coupling 11 and a commutator are matched, and the long coupling 11 and two steel pipes 12 are used as a skeleton together.

[0049] like Figure 5 As shown, the sub-frame body includes two groups of lifting brackets 21, and the left and right end surfaces of the lifting brackets 21 are respectively provided with a group of two sub-traveling wheels 10, and the upper end surface of the middle groove of the lifting bracket 21 is used to install a lifting device, and the upper end of the lifting device is connected to the lower end surface of the body part 9 of the main frame.

[0050] like Figure 6 As shown, the single motor of the transmission device is a double-axle extension motor 23, which is fixed on the lower side of the vehicle body part 9. The connection structures on both sides of the double-axle extension motor 23 are symmetrically arranged, wherein one side of the rotating shaft is connected to the first commutator 22 arranged on the lower side of the vehicle body part 9 through a transmission shaft. The first commutator 22 is a T-type commutator, one end of the output end is connected to the main running wheel 14 on the same side, and the other end of the output end is connected to the second commutator 20 through a first telescopic universal joint 40; the second commutator 20 is a T-type commutator, one end of the output end is connected to the sub-running wheel 10 at the end of the lifting bracket on the same side, and the other end of the output end is connected to the third commutator 24 through a long coupling 11. The third commutator 24 is a T-type commutator, one end of the output end is connected to the sub-running wheel 10 at the end of the lifting bracket on the same side, and the other end of the output end is connected to the main running wheel 14 on the same side through a second telescopic universal joint 41. The sub-running wheels 10 of the same group are driven by belts.

[0051] like Figure 3As shown, a support plate 13 for supporting a tray 32 and luggage is provided between the body parts 9 at both ends of the four-way vehicle, and the bottom of the support plate 13 is sleeved on two steel pipes 12. The wiring harnesses between the body parts 9 at both ends of the four-way vehicle are all placed in a threading tube 39, and the threading tube 39 can cooperate with the steel pipe 12 to enable the four-way vehicle as a whole to have a certain degree of torsional freedom and structural stability. The support plate 13 is mounted on the threading tube 39, so that the threading tube 39 can provide a certain support effect.

[0052] like Figure 7 As shown, the lifting device includes a lifting motor 18, a lifting transmission long coupling 17, a second short coupling 49, a first lifting commutator, a second lifting commutator 42 and two sets of lifting mechanisms, the lifting transmission long coupling 17 and the second short coupling 49 are distributed on both sides of the lifting motor 18, one end of the second short coupling 49 is connected to the output end of the lifting motor 18, and the other end is connected to the first lifting commutator, and the other end of the first lifting commutator is connected to the lifting mechanism on one side; one end of the lifting transmission long coupling 17 is connected to the output end of the lifting motor 18, and the other end is connected to the second lifting commutator 42, and the other end of the second lifting commutator 42 is connected to the lifting mechanism on the other side.

[0053] like Figure 8 As shown, the lifting mechanism includes a left fork arm linkage, a right fork arm linkage 31, a connecting piece 30, a lead screw 46, a first short coupling 45, a transmission shaft 44, a bearing seat 43 and a third telescopic universal joint 29. The left fork arm linkage is connected to the right fork arm linkage 31 through a long strip connecting piece 30. The bearing seat 43 is installed in the middle of the connecting piece 30. The left fork arm linkage includes an upper top plate 25, an upper fork arm 26, a lead screw moving end mounting block 47, a lead screw fixed end mounting block 48, a lower fork arm 27 and a bottom plate 28. The two ends of the upper fork arm 26 are respectively hinged between the upper top plate 25 and the lead screw moving end mounting block 47, and the upper top plate 25 and the lead screw fixed end mounting block are respectively hinged. Block 48; the two ends of the lower fork arm 27 are respectively hinged between the screw moving end mounting block 47 and the base plate 28, and between the screw fixed end mounting block 48 and the base plate 28; the left fork arm connecting rod mechanism and the right fork arm connecting rod mechanism 31 have similar structures, one end of the third telescopic universal joint 29 is connected to the first lifting commutator or the second lifting commutator 42, and the other end is connected to the transmission shaft 44, the transmission shaft 44 is installed in the bearing seat 43, and the other end is connected to the screw 46 through the first short coupling 45; the screw 46 rotates to drive the moving end of the screw 46 to move linearly, driving the left fork arm connecting rod mechanism and the right fork arm connecting rod mechanism 31 to move, thereby realizing the rising and falling of the upper top plate 25.

[0054] The hubs of the main running wheel 14 and the sub-running wheel 10 are made of aluminum alloy, the wheel guide adopts rim self-guided, the rim and the hub are integrated, the rim has a taper, and the rail is also rounded at the position where it contacts the rim, which is convenient for running-in with the rim, so that the trolley has greater walking accuracy error redundancy.

[0055] like Figure 3 As shown, the fork telescopic device 19 adopts a traditional horizontal telescopic device with a primary telescopic capability. In other embodiments, a secondary telescopic capability can be set according to the usage scenario. The fork telescopic long coupling 15, the fork telescopic motor 16 and the steering gear are used in conjunction. The fork telescopic motor 16 drives the fork telescopic devices 19 on both sides at the same time.

[0056] like Fig.17 As shown, the platform conveyor 2-1 is arranged at both ends of the shelf 1 for transporting pallets 32 and luggage, and for the four-way vehicle to pick up pallets 32 and luggage from the upper fork; the platform conveyor 2-1 includes a motorized roller 38, an unpowered roller 37, a frame 35 and a baffle 34, and the motorized roller 38 is used as a conveying power source to convey the luggage together with the unpowered roller 37; the motorized roller 38 and the unpowered roller 37 are arranged on the upper surface of the frame 35, and the baffle 34 is arranged on both sides of the motorized roller 38; two notches 36 for the forks of the fork telescopic device 19 to extend into are arranged on one side of the upper surface of the frame 35, and the notches 36 are used to cooperate with the four-way vehicle to pick up and place goods in a lifting manner.

[0057] The specific principle of the four-way car movement in this scheme is as follows:

[0058] At the initial position, Fig. 9 As shown, the four-way vehicle is located above the reversing track 6, but the four main running wheels 14 are in contact with the main track 3, and the eight running wheels are not in contact with the sub-track 4 and are in a suspended state. The four main running wheels are provided with wheel rims for guiding.

[0059] ① The lifting device is activated, the main frame rises to a certain height, and the lower sub-frame is lowered. The main running wheel 14 is separated from the main track 3 and is suspended in the air. The sub-running wheel 10 contacts the sub-track 4 for support and drive, thereby completing the reversal. Fig.10 shown.

[0060] ② If Fig.11 As shown, during the operation after the reversal, a certain height difference is set between the main track 3 and the sub-track 4 to avoid wheel flange interference; the sub-track 4 forms a gap 33 at the intersection with the main track 3 for the main running wheel 14 to pass through; there are 4 sub-running wheels 10 on each side, and the distance between the two connected wheels must be greater than the width of the gap 33, which can prevent the sub-running wheel 10 from falling into the gap 33 when passing through, affecting the smoothness of operation.

[0061] ③ Such as Fig.12 As shown, it moves to the left, and after reaching the designated cargo position, the fork of the fork telescopic device 19 is driven to extend, and the luggage tray 32 is placed above the cargo space column 5 of the cargo position without touching the cargo space column 5; (the following steps of the cargo picking and placing scheme are different from the currently commonly used clamping scheme and the rotating fork finger dragging scheme, which lacks a mechanism, reduces the space occupied by the internal vehicle body, and reduces a risk point).

[0062] ④ Such as Fig.13 As shown, after the fork of the fork telescopic device 19 is extended to the right position, the lifting mechanism is then driven in reverse, and the fork falls with the vehicle body, so that the pallet 32 ​​is placed on the cargo space column 5 of the shelf 1.

[0063] ⑤ Such as Fig.14 As shown, after the luggage is placed on the cargo space bar 5 of the cargo space, the cargo fork is retracted and reset.

[0064] ⑥ Such as Fig.15 As shown, the driving sub-wheel 10 returns to the reversing track 6 to perform reversing.

[0065] ⑦ Such as Fig.16 As shown, after the reversal, the four-way vehicle can run on the main track 3.

[0066] 1. Compared with the traditional luggage early arrival storage, this solution adopts four-way vehicles to retrieve luggage. Compared with the traditional stacker and multi-pass vehicle, it enhances the compatibility with different needs and redundancy: when the luggage storage volume is small, a four-way vehicle is placed on each floor or every few floors to achieve normal luggage storage and retrieval; when the luggage storage volume is large, multiple four-way vehicles can be placed on each floor to achieve efficient storage of luggage; at the same time, when other four-way vehicles fail in the warehouse, other four-way vehicles can replace them to store and retrieve goods.

[0067] 2. Compared with the traditional four-way vehicle with clamping forks, this solution is replaced by a lifting device, which can simultaneously realize the functions of lifting and reversing and lifting and picking up and releasing goods, reducing the number of active mechanisms, reducing the number of risk points of the four-way vehicle as a whole, and reducing the probability of failure.

[0068] 3. The main body of the frame is connected by two high-strength steel pipes 12 and cooperates with the two long couplings 11, the fork telescopic long coupling 15 and the jacking transmission long coupling 17, so that the four-way vehicle as a whole has a certain degree of torsional freedom, can adapt to the uneven track surface, reduce the bumps of the four-way vehicle caused by the uneven track surface, and reduce the failures and risks that may be caused by the bumps of the four-way vehicle.

[0069] 4. The lifting bracket 21 in the sub-frame adopts a unique structure. With a larger force-bearing surface between the sub-frame and the lifting device, the space of the four-way vehicle is fully utilized. Compared with conventional four-way vehicles, the lifting is more stable and reliable, and the space utilization rate is high.

[0070] 5. The lifting device adopts a mechanical structure instead of a traditional hydraulic structure, which solves the problem of inconvenient placement in the small space of the vehicle body, reduces the risk caused by aging of hydraulic components, and can adapt to low temperature environments.

[0071] 6. The main body of the lifting device is composed of a hinge-link mechanism, and the connections are all hinge low-joint structures, which have high reliability and low maintenance costs.

[0072] 7. The transmission layout of this solution enables all wheels to carry power, which is conducive to the vehicle body passing through the track joints, and has lower wear, which is better than the currently commonly used two-wheel drive solution. In addition, while transmitting, it can be matched with two high-strength steel pipes 12, so that the four-way vehicle as a whole has a certain degree of torsional freedom, can adapt to the uneven track surface, reduce the bumps caused by the uneven track surface of the four-way vehicle, and reduce the failures and risks that may be caused by the bumps of the four-way vehicle.

[0073] 8. The rim self-steering wheel reduces the guide wheel structure, improves the redundancy of the trolley's walking error, and improves the running quality of the vehicle without adding a guide mechanism.

[0074] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An early baggage storage system, characterized by: Includes four-way carts, racks, elevators and platform conveyors; The rack is used to carry the four-way vehicle running on its track, and the four-way vehicle places the pallet and luggage to the designated storage location; one or more four-way vehicles are arranged on each shelf according to the luggage storage capacity requirements; The elevator is arranged at the end of the rack to lift pallets and luggage, and the cooperation of two elevators can realize four-way vehicle layer change; Platform conveyors are arranged at both ends of the racks to transport pallets and luggage, and are used by four-way vehicles to pick up pallets and luggage from above; The four-way vehicle comprises a main frame, a sub-frame, a lifting device and a fork telescopic device; the frame body adopts two steel pipes as a skeleton to connect the body parts at both ends, the body parts are provided with a control module and a battery, the fork telescopic device is arranged on the relatively inner side surfaces of the body parts at both ends, and the outer side surfaces of the body parts are provided with main running wheels; the main frame is arranged on the upper side of the sub-frame, and sub-running wheels are arranged on both sides of the sub-frame, and the main running wheels and sub-running wheels share a set of transmission devices to respectively realize X-direction movement and Y-direction movement; the lifting device is arranged between the main frame and the sub-frame for lifting the main frame to realize the switching of X-direction movement and Y-direction movement, and for realizing the picking and placing of pallets and luggage by lifting the fork telescopic device; the transmission device adopts a transmission layout coordinated with a single motor, a transmission shaft, a universal joint, a long coupling and a commutator, and the long coupling and the two steel pipes are used as a skeleton.

2. The early baggage storage system according to claim 1, characterized in that: The sub-frame body includes two groups of lifting brackets, and the left and right end surfaces of the lifting brackets are respectively provided with two sub-traveling wheels in a group, and the sub-traveling wheels in the same group are driven by belts. The upper end surface of the lifting bracket is used to install a lifting device, and the upper end of the lifting device is connected to the lower end surface of the vehicle body component.

3. The early baggage storage system according to claim 2, characterized in that: The single motor of the transmission device is a double-axle extension motor, which is fixed to the lower side of the vehicle body component. The connecting structures on both sides of the double-axle extension motor are symmetrically arranged, wherein one side of the rotating shaft is connected to the first commutator arranged on the lower side of the vehicle body component through a transmission shaft, and the first commutator is a T-type commutator, one end of the output end is connected to the main walking wheel on the same side, and the other end of the output end is connected to the second commutator through a first telescopic universal joint; the second commutator is a T-type commutator, one end of the output end is connected to the sub-walking wheel at the end of the lifting bracket on the same side, and the other end of the output end is connected to the third commutator through a long coupling; the third commutator is a T-type commutator, one end of the output end is connected to the sub-walking wheel at the end of the lifting bracket on the same side, and the other end of the output end is connected to the main walking wheel on the same side through a second telescopic universal joint.

4. The early baggage storage system according to claim 3 is characterized by: The lifting device includes a lifting motor, a long lifting transmission coupling, a second short coupling, a first lifting commutator, a second lifting commutator and two sets of lifting mechanisms. The long lifting transmission coupling and the second short coupling are distributed on both sides of the lifting motor. One end of the second short coupling is connected to the output end of the lifting motor, and the other end is connected to the first lifting commutator. The other end of the first lifting commutator is connected to the lifting mechanism on one side; one end of the long lifting transmission coupling is connected to the output end of the lifting motor, and the other end is connected to the second lifting commutator. The other end of the second lifting commutator is connected to the lifting mechanism on the other side.

5. The early baggage storage system according to claim 4 is characterized by: The jacking mechanism includes a left fork arm connecting rod mechanism, a right fork arm connecting rod mechanism, a connecting piece, a lead screw, a first short coupling, a transmission shaft, a bearing seat and a third telescopic universal joint. The left fork arm connecting rod mechanism is connected to the right fork arm connecting rod mechanism through a long strip connecting piece. The bearing seat is installed in the middle of the connecting piece. The left fork arm connecting rod mechanism includes an upper top plate, an upper fork arm, a lead screw moving end mounting block, a lead screw fixed end mounting block, a lower fork arm and a bottom plate. The two ends of the upper fork arm are respectively hinged between the upper top plate and the lead screw moving end mounting block, and between the upper top plate and the lead screw fixed end mounting block; The two ends of the lower fork arm are respectively hinged between the mounting block of the movable end of the screw and the base plate, and between the mounting block of the fixed end of the screw and the base plate; the left fork arm connecting rod mechanism and the right fork arm connecting rod mechanism have similar structures, one end of the third telescopic universal joint is connected to the first lifting commutator or the second lifting commutator, and the other end is connected to the transmission shaft, the transmission shaft is installed in the bearing seat, and the other end is connected to the screw through the first short coupling; the rotation of the screw drives the movable end of the screw to move linearly, drives the left fork arm connecting rod mechanism and the right fork arm connecting rod mechanism to move, and realizes the rising and falling of the upper top plate.

6. The early baggage storage system according to claim 3 is characterized by: The hubs of the main running wheel and the sub-running wheel are made of aluminum alloy, the wheel guide adopts rim self-guided, the rim and the hub are integrated, the rim has a taper, and the position where the track contacts the rim is also set to be chamfered.

7. The early baggage storage system according to claim 1, characterized in that: The shelf includes a main track, a sub-track and a reversing track, wherein the sub-track is distributed in the storage channel of the shelf; the main track is distributed in the reversing channel of the shelf; the reversing track is aligned with the sub-track and arranged on the inner side of the main track; the reversing track is provided with a notch at the position where it intersects with the main track for the passage of the main walking wheel.

8. The early baggage storage system according to claim 1, characterized in that: The platform conveyor includes a motorized roller, an unpowered roller, a frame and a baffle. The motorized roller serves as a conveying power source and conveys luggage together with the unpowered roller. The motorized roller and the unpowered roller are arranged on the upper surface of the frame, and the baffle is arranged on both sides of the motorized roller. Two notched grooves for forks to extend into are arranged on one side of the upper surface of the frame, and the notched grooves are used to cooperate with a four-way vehicle to pick up and place goods in a lifting manner.

9. The early baggage storage system according to claim 1, characterized in that: A support plate for supporting a tray and luggage is arranged between the body parts at both ends of the four-way vehicle, and the support plate is mounted on two steel pipes.

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