Pallet shelf warehousing system

Abstract

The utility model relates to a pallet shelf warehousing system which comprises at least one group of shelves, a goods transfer device is arranged on a roadway between two shelves in the same group, the goods transfer device comprises a mother vehicle, and the mother vehicle is connected with a goods carrying table through a lifting belt. The mother vehicle is matched with a walking track arranged on the goods shelf through the first walking mechanism so as to walk in the extending direction of the goods shelf, the goods carrying table is provided with a telescopic pallet fork assembly, the telescopic pallet fork assembly is connected with a lifting mechanism installed on the goods carrying table, and the warehousing system is better in operation safety.

Description

Technical Field

[0001] The utility model relates to the technical field of warehousing, in particular to a pallet rack warehousing system. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] In the current pallet rack storage system, the pallet transfer device is arranged in the aisle between two adjacent racks, including a mother car and a cargo platform. The mother car is connected to the cargo platform through a lifting belt to drive the cargo platform to move up and down. The mother car is connected to the track set on the side of the rack through a first walking mechanism. The mother car can move along the extension direction of the rack through the first walking mechanism and the track. The lifting belt drives the cargo platform to move up and down so that the cargo platform can move to the target cargo position on the rack. A telescopic fork assembly is provided on the cargo platform, which is used to cooperate with the fork hole of the pallet. When in use, the telescopic fork assembly is extended into the fork hole, and the lifting belt drives the cargo platform to move up and down, so that the pallet is detached from or placed on the target cargo position of the shelf through the telescopic fork assembly. However, when using this method, if the weight of the cargo on the pallet is large, the telescopic fork assembly is prone to the risk of equipment overturning during the picking process. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a pallet rack storage system to ensure the safety of the telescopic fork assembly in the process of picking up goods.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An embodiment of the utility model provides a pallet rack storage system, comprising at least one group of racks, wherein a cargo transfer device is provided in an aisle between two racks in the same group, wherein the cargo transfer device comprises a mother car, which is connected to a cargo platform via a lifting belt, and the mother car cooperates with a walking track provided with the rack via a first walking mechanism to travel along the extension direction of the rack, and the cargo platform is provided with a telescopic fork assembly, which is connected to a lifting mechanism installed on the cargo platform.

[0007] Optionally, the lifting mechanism adopts a cam lifting mechanism, a screw lifting mechanism or a rack and pinion lifting mechanism installed on the cargo platform.

[0008] Optionally, the shelves are provided in multiple groups, and the running tracks of adjacent groups of shelves are connected by lane-changing tracks to enable the cargo transfer device to be transferred between the lanes of adjacent groups of shelves.

[0009] Optionally, the lane-changing track is a curved track. In two adjacent groups of shelves, one end of the curved track is connected to the end of the running track of one group of shelves, and the other end of the curved track is connected to the end of the running track of the other group of shelves.

[0010] Optionally, the end of the shelf is provided with a mobile platform that can cooperate with the walking track. The mobile platform cooperates with the mobile platform track arranged on one side of the shelf through a moving mechanism. The mobile platform track is arranged along an extension direction perpendicular to the shelf. The mobile platform is used to carry the cargo transfer device and move along the extension direction perpendicular to the shelf to realize the transfer of the cargo transfer device between adjacent groups of shelf aisles.

[0011] Optionally, a plurality of walking tracks are provided at different heights of the shelf, and the mobile platform is connected to the moving mechanism via a lifting mechanism to carry the cargo transfer device to move along the height direction of the shelf so that the cargo transfer device can reach different levels of the shelf.

[0012] Optionally, at least one clamping component for cooperating with the shelf is provided on both sides of the cargo platform, and the clamping component is connected to the telescopic assembly installed on the cargo platform; the clamping part is a magnetic claw or a rigid claw.

[0013] Optionally, the telescopic assembly adopts a gear rack telescopic mechanism or a telescopic cylinder. Optionally, in the mother vehicle, at least one buffer component is provided on both edges perpendicular to the extension direction of the shelf.

[0014] Optionally, a second walking mechanism is provided on both sides of the cargo platform along the extension direction of the shelf, and the second walking mechanism is used to run along the ground of the lane or along the cargo platform walking track provided in the extension direction of the lane.

[0015] Optionally, a cargo detection element is provided above the cargo platform to detect whether the cargo has been transferred to the cargo platform.

[0016] The beneficial effects of the above utility model are as follows:

[0017] 1. In the pallet rack storage system of the present invention, the telescopic fork assembly is connected to the lifting mechanism. When picking up goods, the telescopic fork assembly cooperates with the pallet, and the lifting mechanism is first used to lift the pallet and goods to a set height, and then the goods are picked up. Compared with the traditional method of lifting the pallet and goods with a lifting belt, the risk of overturning of the equipment is avoided, and the cargo transfer device works more safely.

[0018] 2. In the pallet rack storage system of the present invention, the loading platform is provided with a clamping component connected to the telescopic assembly. When the telescopic fork assembly picks up and places goods, the telescopic assembly can drive the clamping component to extend and cooperate with the shelf to press against the shelf, further preventing the loading platform from overturning and ensuring safety when picking up and placing goods.

[0019] 3. The pallet rack storage system of the present invention is provided with a lane-changing track or a mobile platform, so that the cargo transfer device can move to the lanes of different groups of shelves. The same cargo transfer device can pick up and place goods on different groups of shelves. There is no need to set up a cargo transfer device on each group of shelves, which reduces the equipment cost of the storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation on this application.

[0021] Figure 1 This is a front view of Example 1 of the utility model;

[0022] Figure 2 This is a top view of Example 1 of the utility model;

[0023] Figure 3 This is a structural diagram of a cargo transfer device according to embodiment 1 of the present invention;

[0024] Figure 4 This is a front view of the cargo transfer device according to embodiment 1 of the present invention;

[0025] Figure 5 This is a side view of the cargo transfer device according to embodiment 1 of the present invention;

[0026] Figure 6 This is a schematic diagram of a cargo transfer device according to embodiment 2 of the present utility model;

[0027] Figure 7 This is a schematic structural diagram of Example 3 of the present utility model;

[0028] Among them: 1. Shelf, 2. Cargo transfer device, 3. Lane change track, 4. Pallet, 5. Second travel mechanism, 6. Axle, 7. Slider, 8. Telescopic drive mechanism, 9. Intermediate shaft, 10. Belt drive mechanism, 11. Cargo platform travel drive motor, 12. Mobile platform, 13. Mobile platform track, 14. Rectangular frame, 15. Lifting mechanism;

[0029] 2-1. Mother vehicle, 2-2. Lifting belt, 2-3. Cargo platform, 2-4. First walking mechanism, 2-5. Lifting belt drive motor, 2-6. Winding wheel, 2-7. Guide wheel, 2-8. Buffer assembly, 2-9. Telescopic fork assembly, 2-10. Clamping component, 2-11. Telescopic assembly, 2-12. Cargo detection element. DETAILED DESCRIPTION

[0030] Example 1

[0031] This embodiment provides a pallet rack storage system, such as Figure 1-Figure 2 As shown, it includes at least one group of shelves 1, and the same group includes two shelves 1 arranged side by side. There is an aisle between adjacent shelves 1, and a cargo transfer device 2 is provided at the aisle position of adjacent shelves. The cargo transfer device 2 includes a mother car 2-1, and the mother car 2-1 is connected to the cargo platform 2-3 through a lifting belt 2-2. The mother car 2- can drive the cargo platform 2-3 to do lifting and lowering movements through the lifting belt 2-2. The two mother cars 2-1 are also provided with a first walking mechanism 2-4, and the first walking mechanism 2-4 cooperates with the walking track fixed on the shelf 1. The mother car 2- can walk along the walking track through the first walking mechanism 2-4, so that the mother car 2-1 can walk along the extension direction of the shelf 1 and the aisle.

[0032] In this embodiment, the travel track is set on the top of the shelf 1, so the mother vehicle 2-1 travels from the top of the aisle.

[0033] like Figure 3-Figure 5 As shown, lifting belt driving parts are provided at the four corners of the mother vehicle 2-1. The lifting belt driving parts adopt a lifting belt driving motor 2-5 or other equipment that can output rotational motion. The output shaft of the lifting belt driving motor 2-5 is connected to the winding wheel 2-6. The lifting belt 2-2 is wound on the winding wheel 2-6. The lifting belt 2-2 passes around the guide wheel 2-7 provided on the cargo platform 2-3 and then extends downward through the cargo platform. The movable end of the lifting belt is connected to the cargo platform 2-3.

[0034] Two first walking mechanisms 2-4 are provided on both sides of the mother vehicle 2-1. The first walking mechanism 2-4 includes walking wheels that cooperate with the walking track. At least one walking wheel is connected to the walking drive motor installed on the mother vehicle 2-1. The walking drive motor drives the walking wheel to rotate, thereby driving the entire mother vehicle to move along the walking track.

[0035] At least one buffer component 2-8 is provided on both side edges of the mother vehicle 2-1 perpendicular to the traveling direction. The buffer component 2-8 is a block made of a flexible material such as a rubber block.

[0036] A lifting mechanism is provided on the cargo platform 2-3, and the lifting mechanism is connected to the telescopic fork assembly 2-9. The telescopic fork assembly 2-9 can perform telescopic movement. The telescopic fork assembly 2-9 is used to cooperate with the fork hole on the pallet 4. When the telescopic fork assembly is extended, it can be inserted into the fork hole, thereby driving the movement of the pallet 4.

[0037] The telescopic fork assembly 2-9 can be made of existing equipment, and its specific structure is described in detail in this section.

[0038] The telescopic fork assembly 2-9 is connected to a lifting mechanism provided on the cargo platform 2-3, and the lifting mechanism can drive the telescopic fork assembly as a whole to perform a lifting movement of a certain distance.

[0039] In this embodiment, in order to ensure the stability of the lifting of the telescopic fork assembly 2-9, at least one lifting mechanism is provided on both sides of the cargo platform 2-3. Preferably, multiple lifting mechanisms are provided on both sides of the cargo platform 2-3.

[0040] The lifting mechanism adopts a screw lifting mechanism, a cam lifting mechanism, a screw lifting mechanism, etc. It can be understood that as long as the lifting mechanism can output vertical lifting movement perpendicular to the cargo platform, technical personnel in this field can set it according to actual needs, which will not be described in detail here.

[0041] In order to further improve the stability of the cargo platform 2-3 when picking up and placing goods, at least one holding component 2-10 is provided on both sides of the cargo platform. The holding component 2-10 is connected to the telescopic component 2-11 installed on the cargo platform. When the cargo platform 2-3 moves to the target cargo position of the shelf, the telescopic component 2-11 can drive the holding component 2-10 to extend, and the holding component 2-10 abuts against the shelf 1, thereby realizing the use of the shelf 1 to maintain the stability of the cargo platform 2-3.

[0042] In this embodiment, two holding components 2-10 are provided on both sides of the cargo platform. In another embodiment, a holding component 2-10 is provided on both sides of the cargo platform 2-3. The holding components 2-0 on both sides are arranged diagonally relative to the cargo platform 2-3 to avoid the position of the holding component 2-10 deviating from the center of the cargo platform 2-3 and causing the center to shift, thereby ensuring the stability of the cargo platform.

[0043] The telescopic component 2-11 adopts a telescopic cylinder or a gear rack telescopic mechanism and other devices that can output telescopic movement. In this embodiment, the telescopic component 2-11 adopts a gear rack telescopic mechanism, including a telescopic shaft, which is slidably connected to the guide block installed on the cargo platform 2-3, and the end of the telescopic shaft is connected to a holding component 2-10. A servo is provided on the guide block, and the servo is connected to the gear located in the internal cavity of the guide block. The gear is engaged with the rack set on the telescopic shaft, and the servo drives the gear to rotate, thereby driving the telescopic shaft to perform telescopic movement through the rack.

[0044] The clamping component 2-10 adopts a magnetic clamping claw or a rigid clamping claw, and the clamping component 2-10 has multiple claws to increase the contact area with the shelf.

[0045] Furthermore, cargo detection elements 2-12 are provided on both sides above the cargo platform 2-3 for detecting whether the cargo has moved to the cargo platform. In this embodiment, the cargo detection elements 2-12 use photoelectric sensors, and the two photoelectric sensors are distributed along the telescopic direction of the telescopic fork assembly. The photoelectric sensors are fixed on the sensor bracket, and the sensor bracket is fixed on the cargo platform, so that there is a set distance between the photoelectric sensor and the cargo platform.

[0046] Furthermore, a posture detection element is installed on the cargo platform 2-3, and the posture detection element uses a gyroscope to detect the posture of the cargo platform, or a plurality of laser rangefinders are installed on the cargo platform or the mother vehicle as posture detection elements. The distance between the mother vehicle and the cargo platform at different positions is detected by multiple laser rangefinders, so that the posture of the cargo platform can be judged.

[0047] In this embodiment, multiple groups of shelves 1 are provided, and aisle-changing tracks 3 are provided between the running tracks of adjacent groups of shelves. The mother vehicle 2-1 can travel on the aisle-changing tracks 3, thereby moving to the aisle position of the adjacent group of shelves 1. This setting method enables the cargo transfer device 2 to move to the aisles of different groups of shelves 1. The same cargo transfer device 2 can pick up and place goods for different groups of shelves 1. There is no need to set up a cargo transfer device for each group of shelves, thereby reducing the equipment cost of the warehousing system.

[0048] In this embodiment, the lane-changing track 3 is a curved track, preferably a semicircular track, one end of the curved track is connected to one end of the running track of one of the two adjacent groups of shelves, and the other end of the curved track is connected to the same side end of the running track of the other group of shelves. In this way, the mother vehicle can move directly to the running track of the adjacent group of shelves through the curved track without the need for a steering mechanism. The working method of the storage system of this embodiment is as follows:

[0049] The mother car 2- moves along the walking track, and the mother car 2-1 drives the cargo platform 2-3 to rise and fall through the lifting belt 2-2, so that the cargo platform 2-3 moves to the target cargo position of the shelf 1. When releasing the goods, the telescopic fork assembly 2-9 performs telescopic movement to transfer the pallet 4 carrying the goods to the target cargo position, and then the lifting mechanism drives the telescopic fork assembly 2-9 to descend, driving the pallet 4 to be placed on the shelf 1. When picking up the goods, the telescopic fork assembly 2-9 extends and inserts into the fork hole of the pallet 4, and then the lifting mechanism drives the pallet 4 to rise to the set height, the pallet 4 leaves the shelf 1, and then the telescopic fork assembly retracts to transfer the pallet to the cargo platform, the lifting belt drives the cargo platform to the highest height, the mother car moves to the shipping position, the lifting belt drives the cargo platform down to the shipping position, and the telescopic fork assembly is used to ship the goods.

[0050] Furthermore, when the telescopic fork assembly 2-9 picks up and places goods, the telescopic assembly 2-11 drives the holding component 2-10 to extend and abut against the shelf 1, thereby ensuring the stability of the cargo platform when picking up and placing goods.

[0051] In the warehousing system of this embodiment, after the telescopic fork assembly is matched with the pallet, the pallet and the goods are first lifted to a set height using the lifting mechanism, and then the goods are picked up. Compared with the traditional method of lifting the pallet and goods using a lifting belt, the risk of overturning of the equipment is avoided, and the cargo transfer device operates more safely.

[0052] Example 2

[0053] This embodiment provides a pallet rack storage system, such as Figure 6 As shown, compared with Example 1, the difference is that the cargo platform is provided with a second walking mechanism 5 on both sides of the cargo platform along the extension direction of the shelf, and the second walking mechanism 5 is used for walking along the ground of the lane or along the cargo platform walking track provided in the extension direction of the lane.

[0054] The second traveling mechanism 5 adopts traveling wheels installed on the side of the cargo platform. The traveling wheels are connected to a driving mechanism, and the driving mechanism drives the traveling wheels to rotate so that the cargo platform walks along the cargo platform walking track or the roadway ground.

[0055] When the second walking mechanism cooperates with the walking track of the cargo platform, the second walking mechanism is a telescopic structure. Specifically, the walking wheel of the second walking mechanism is connected to the wheel axle 6, the wheel axle 6 is rotatably connected to the slider 7 through a bearing, the slider is slidingly connected to the cargo platform, and the slider 7 is connected to the telescopic drive mechanism 8 on the cargo platform. The wheel axle 6 is also connected to the corresponding intermediate shaft 9 by a key connection, and the intermediate shaft is rotatably connected to the cargo platform through the intermediate shaft seat. The wheel axle 6 can rotate synchronously with the intermediate shaft 9 and can move linearly along the axial direction of the intermediate shaft 9. The intermediate shaft 9 is connected to the cargo platform walking drive motor 11 through a belt transmission mechanism 10, and the cargo platform walking drive motor is installed on the cargo platform.

[0056] The telescopic drive mechanism can adopt a mechanism that can output linear motion, such as a cylinder or a gear rack telescopic mechanism, which will not be described in detail here. In this embodiment, a gear rack telescopic mechanism is adopted, including a telescopic shaft, which is slidably connected to a guide block, a servo is fixed on the guide block, and the servo is connected to a gear, which is engaged with a rack set on the telescopic shaft.

[0057] The rest of the structure of this embodiment is the same as that of embodiment 1 and will not be repeated here.

[0058] Example 3

[0059] This embodiment provides a pallet rack storage system, such as Figure 7As shown, compared with Example 1, no lane-changing track is provided on the shelf 1, and a mobile platform 12 is provided on one side of the shelf. The mobile platform 12 adopts a U-shaped structure and can be docked with the walking track of the shelf 1, so that the mother vehicle 2-1 can move to the mobile platform 12, and the mobile platform 12 is connected to the mobile mechanism, and the mobile mechanism cooperates with the mobile platform track 13 provided on one side of the shelf 1. The mobile platform track is provided perpendicular to the extension direction of the shelf, and the mobile platform track 13 is fixed, wherein the upper mobile platform track 13 is fixed on the ceiling or the track bracket, and the lower mobile platform track 13 is fixed on the ground foundation, and the mobile mechanism can drive the mobile platform 12 to move along the mobile platform track 13 to move the cargo transfer device to correspond to different lanes, and the mobile mechanism includes a rectangular frame 14, which is connected to the mobile platform 12, and the top and bottom ends of the rectangular frame 14 are provided with electric wheels, which cooperate with the mobile platform track 13.

[0060] Furthermore, when the shelf 1 has multiple walking tracks at different heights, the mobile platform 12 is connected to the lifting mechanism 15 installed on the rectangular frame to carry the cargo transfer device to move along the height direction of the shelf to enable the cargo transfer device to reach different levels of the shelf.

[0061] The lifting mechanism 15 adopts a vertically arranged belt transmission mechanism or a chain transmission mechanism, preferably a chain transmission mechanism, and a transmission chain of the chain transmission mechanism is connected to the mobile platform 12 to drive the mobile platform 12 to move up and down.

[0062] When the storage system of this embodiment changes lanes, the mother vehicle 2-1 moves to the mobile platform 12, and the moving mechanism moves along the mobile platform track 13 to the target lane position. Then the mother vehicle 2-1 leaves the mobile platform 12 and moves to the walking track of the corresponding lane to realize the lane change.

[0063] The rest of the structure of this embodiment is the same as that of embodiment 1 and will not be repeated here.

[0064] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A pallet rack storage system, characterized in that: It includes at least one group of shelves, and the aisle between two shelves in the same group is provided with a cargo transfer device. The cargo transfer device includes a mother car, which is connected to a cargo platform through a lifting belt. The mother car cooperates with the walking track set with the shelf through a first walking mechanism to travel along the extension direction of the shelf. The cargo platform is provided with a telescopic fork assembly, and the telescopic fork assembly is connected to the lifting mechanism installed on the cargo platform.

2. A pallet rack storage system according to claim 1, characterized in that: The lifting mechanism adopts a cam lifting mechanism, a screw lifting mechanism or a gear rack lifting mechanism installed on the cargo platform.

3. The pallet rack storage system according to claim 1, characterized in that: The shelves are provided in multiple groups, and the running tracks of adjacent groups of shelves are connected by lane-changing tracks to realize the transfer of the cargo transfer device between the lanes of adjacent groups of shelves.

4. A pallet rack storage system according to claim 3, characterized in that: The lane-changing track adopts a curved track. In two adjacent groups of shelves, one end of the curved track is connected to the end of the running track of one group of shelves, and the other end of the curved track is connected to the end of the running track of the other group of shelves.

5. The pallet rack storage system according to claim 1, characterized in that: The end of the shelf is provided with a mobile platform that can cooperate with the walking track. The mobile platform cooperates with the mobile platform track arranged on one side of the shelf through a moving mechanism. The mobile platform track is arranged along an extension direction perpendicular to the shelf. The mobile platform is used to carry the cargo transfer device and move along the extension direction perpendicular to the shelf to realize the transfer of the cargo transfer device between adjacent groups of shelf aisles.

6. A pallet rack storage system according to claim 5, characterized in that: A plurality of walking tracks are provided at different heights of the shelf, and the mobile platform is connected to the moving mechanism through a lifting mechanism to carry the cargo transfer device to move along the height direction of the shelf so that the cargo transfer device can reach different levels of the shelf.

7. The pallet rack storage system according to claim 1, characterized in that: At least one clamping component for cooperating with the shelf is provided on both sides of the cargo platform, and the clamping component is connected to the telescopic assembly installed on the cargo platform; the clamping part is a magnetic clamping claw or a rigid clamping claw.

8. The pallet rack storage system according to claim 7, characterized in that: The telescopic assembly adopts a rack and pinion telescopic mechanism or a telescopic cylinder.

9. The pallet rack storage system according to claim 1, characterized in that: In the mother vehicle, at least one buffer component is provided on each of the two edges perpendicular to the extending direction of the shelf.

10. The pallet rack storage system according to claim 1, characterized in that: The cargo platform is provided with a second walking mechanism on both sides along the extension direction of the shelf, and the second walking mechanism is used for walking along the ground of the lane or along the cargo platform walking track provided in the extension direction of the lane.

11. The pallet rack storage system according to claim 1, characterized in that: A cargo detection element is also provided above the cargo platform to detect whether the cargo has been transferred to the cargo platform.

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