Up-and-down rail stacking machine
By designing the gantry and lifting platform of the overhead rail stacker crane and combining them with the drive mechanism, the automated up-and-down movement of the platform and the automatic stacking of goods are realized. This solves the safety hazards and insufficient capacity problems of manual operation in the existing technology and improves the utilization efficiency of the automated warehouse.
Patent Information
- Application Number
- CN202511886796.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-01-23
AI Technical Summary
Existing stacker cranes, lacking product ejection mechanisms on their loading platforms, require manual operation, posing safety hazards and making it impossible to store and retrieve goods in situations with limited top-level space, resulting in insufficient capacity in automated warehouses.
A stacker crane with a ground rail system was designed. It adopts a gantry frame that is slidably set on a ground rail, and has a lifting platform and a stacking and transferring mechanism inside. The automatic up and down movement of the platform and the stacking operation of the goods are realized through the drive mechanism. The second drive mechanism drives the gantry frame to move horizontally, and the lifting platform and stacking and transferring mechanism together automatically stack and push out the goods.
It has enabled automated operation of the loading platform, avoiding manual intervention and improving the security of storage and retrieval and the capacity utilization of the automated warehouse.
Smart Images

Figure CN121376869A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of stacker cranes, and more particularly to overhead rail stacker cranes. Background Technology
[0002] When existing stacker cranes are in use, the platform lowers below the stacker, and with manual assistance, the products to be stacked are pushed onto the platform. The platform then rises to the height of the stacked products. However, because the platform lacks a product ejection mechanism, manual assistance is still required to retrieve products at the stacking height, which poses a safety hazard to the overall operation. Furthermore, with limited space at the top level, it is impossible to store and retrieve goods, thus reducing the number of storage layers and causing the automated warehouse capacity to fall short of customer requirements. Therefore, the proposed top-and-bottom rail stacker crane is proposed. Summary of the Invention
[0003] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.
[0004] A top-and-bottom rail stacker crane, slidably mounted on a ground rail, includes a gantry frame slidably mounted on the ground rail. A lifting platform is horizontally mounted inside the gantry frame, and the lifting platform moves vertically within the gantry frame. The lifting platform is equipped with a stacking and transferring mechanism that moves horizontally above it, and the lifting platform, along with the stacking and transferring mechanism, moves vertically within the gantry frame. A first drive mechanism is located on one side of the gantry frame, and is connected to the lifting platform, driving the lifting platform and stacking and transferring mechanism to move vertically within the gantry frame. Second drive mechanisms are located on both sides of the bottom end of the gantry frame, moving in the same direction as the gantry frame, and are connected to the ground rail.
[0005] Preferably, a first movable platform is provided on one side below the gantry frame, and the first movable platform moves horizontally on the ground rail. A column that moves synchronously with the first movable platform is vertically provided on the first movable platform. A connecting block is provided on the forward side of the column, and a support platform that moves synchronously with the connecting block is vertically provided on the forward side of the connecting block. The support platform moves up and down on the forward side of the column through the connecting block.
[0006] Preferably, the stacking and transferring mechanism includes a track frame arranged horizontally on the lifting platform, and a movable frame arranged horizontally above the track frame, and the movable frame moves horizontally on the track frame. The track frame is equipped with a third drive motor that drives the movable frame to move above it, and the third drive motor is located below the lifting platform. The third drive motor drives the movable frame to move horizontally on the track frame by a sprocket and chain meshing transmission method.
[0007] Preferably, the first drive mechanism includes a second drive motor disposed on one side of the gantry frame, and the second drive motor is driven and connected to a second gearbox. The second gearbox and the second gearbox are combined to form a permanent magnet synchronous traction machine. Both sides of the permanent magnet synchronous traction machine are synchronously driven and connected to transmission traction steel ropes, and the transmission traction steel ropes are connected to the lifting platform for transmission.
[0008] Preferably, a connecting frame is provided between the transmission traction steel rope and the lifting platform, and the connecting frames are all vertically located on both sides of the lifting platform. The connecting frames are all connected to the transmission traction steel rope, and a third traction wheel that rotates on the side of the connecting frame to cooperate with the transmission traction steel rope is provided for transmission.
[0009] Preferably, the connecting frame is provided with a fourth traction wheel and a fifth traction wheel that move synchronously with it. The fourth traction wheel is rolled on the upper side of the connecting frame, and the fifth traction wheel is rolled on the lower side of the connecting frame. The transmission traction steel rope passes through the fourth traction wheel and the fifth traction wheel and makes frictional contact with the fourth traction wheel and the fifth traction wheel.
[0010] Preferably, a first traction wheel and a second traction wheel are further provided between the transmission traction steel rope and the lifting platform. The first traction wheel is rolled at the front and rear ends on both sides above the gantry frame, and the second traction wheel is rolled at both sides above the gantry frame. The transmission traction steel rope passes through the inside of the first traction wheel and the second traction wheel and makes frictional contact with the first traction wheel and the second traction wheel.
[0011] Preferably, the lifting platform is provided with a reinforcing frame that moves synchronously with it, and the reinforcing frame is vertically arranged on the lifting platform. The reinforcing frame can limit the movement of the loading platform onto the lifting platform.
[0012] Preferably, the second drive mechanism includes a first drive motor that is vertically arranged at the bottom of both sides of the gantry, and a first gearbox is driven at the bottom of the first drive motor, and a drive wheel that rolls on the ground rail is driven at the bottom of the first gearbox.
[0013] Preferably, the gantry frame is provided with sliding guide wheels that move synchronously with it, and the sliding guide wheels are all rolled at the front and rear ends on both sides below the gantry frame, and the sliding guide wheels roll at the front and rear ends of the ground rail.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the second drive mechanism can drive the gantry frame to move horizontally on the ground rail. When items need to be stacked, the second drive mechanism drives the gantry frame, along with the stacking and moving mechanism, to the desired stacking position. After reaching the designated position, the second drive mechanism stops, and the gantry frame stops moving. At this time, the lifting platform, along with the stacking and moving mechanism, descends to the bottom of the gantry frame. The stacking and moving mechanism then moves forward and to a position below the items. Since the items are stacked on the platform, the stacking and moving mechanism moves horizontally below the platform. At this point, the lifting platform... The platform drives the stacking and transfer mechanism to move upwards, along with the platform carrying the items. During the movement, the stacking and transfer mechanism and the platform gradually move into the lifting platform until the platform and the items are placed on the lifting platform. At this point, the lifting platform, the platform, and the items on the platform are raised to the desired stacking height. Simultaneously, the stacking and transfer mechanism pushes the platform and the items placed on it out from above the lifting platform and stacks them on top of other items. Then, the stacking and transfer mechanism resets, and the lifting platform simultaneously lowers and resets, ready to transport the next batch of items to be stacked.
[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural schematic diagram of a top-and-bottom rail stacker crane;
[0018] Figure 2 This is another structural schematic diagram of a top-and-bottom rail stacker crane;
[0019] Figure 3 This is another structural schematic diagram of a top-and-bottom rail stacker crane;
[0020] Figure 4 This is a schematic diagram of the lifting mechanism;
[0021] Figure 5 This is another structural schematic diagram of the lifting mechanism;
[0022] Figure 6 This is another structural diagram of the lifting mechanism.
[0023] The diagram shows: 1. Ground rail, 2. Gantry frame, 3. Lifting platform, 4. First moving platform, 5. Track frame, 6. Moving frame, 7. Loading platform, 8. Support platform, 9. Connecting frame, 10. First drive motor, 11. Sliding guide wheel, 12. Second drive motor, 13. Transmission traction steel rope, 14. Stand, 15. Connecting block, 16. Third drive motor, 17. First gearbox, 18. Drive wheel, 19. First traction wheel, 20. Second traction wheel, 21. Second gearbox, 22. Reinforcing frame, 23. Third traction wheel, 24. Fourth traction wheel, 25. Fifth traction wheel. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] Please see Figure 1-6In this embodiment of the invention, the top-and-bottom rail stacker is slidably mounted on a ground rail 1, including a gantry frame 2 slidably mounted on the ground rail 1. A lifting platform 3 is laterally arranged inside the gantry frame 2, and the lifting platform 3 moves vertically within the gantry frame 2. The lifting platform 3 is equipped with a stacking and transferring mechanism that moves horizontally above it, and the lifting platform 3, along with the stacking and transferring mechanism, moves vertically within the gantry frame 2. A first driving mechanism is provided on one side of the gantry frame 2, and the first driving mechanism is driven to move the lifting platform 3, along with the stacking and transferring mechanism, vertically within the gantry frame 2. Second driving mechanisms are provided on both sides of the bottom end of the gantry frame 2, and the second driving mechanisms move in the same direction as the gantry frame 2, and are driven to move the gantry frame 2, along with the stacking and transferring mechanism, through the second driving mechanisms. After moving to the desired stacking location, the second drive mechanism stops, and the gantry 2 stops moving. At this point, the lifting platform 3, along with the stacking and transferring mechanism, descends to the bottom of the gantry 2. The stacking and transferring mechanism then moves forward to a position below the items. Since the items are stacked on the loading platform 7, the stacking and transferring mechanism moves horizontally to below the loading platform 7. The lifting platform 3 then drives the stacking and transferring mechanism upwards, moving the loading platform 7 carrying the items upwards as well. During this movement, the stacking and transferring mechanism... The mechanism, along with the platform 7, gradually moves into the lifting platform 3 until the platform 7 and the items are placed on the lifting platform 3. At this point, the lifting platform 3, along with the platform 7 and the items on the platform 7, is raised to the desired stacking height. Simultaneously, the stacking and transfer mechanism gradually pushes the platform 7 and the items placed on the platform 7 out from above the lifting platform 3 and stacks them on top of other items. Then, the stacking and transfer mechanism resets, and the lifting platform 3 simultaneously lowers and resets, and the next batch of items to be stacked is transported and transferred.
[0026] A first movable platform 4 is provided on one side below the gantry frame 2 and moves synchronously therewith. The first movable platform 4 moves horizontally on the ground rail 1, and a column 14 that moves synchronously therewith is vertically provided on the first movable platform 4. A connecting block 15 is provided on the forward side of the column 14, and a support platform 8 that moves synchronously therewith is vertically provided on the forward side of the connecting block 15. The support platform 8 moves up and down on the forward side of the column 14 through the connecting block 15. So when the lifting platform 3 and the stacking and transferring mechanism rise, the connecting block 15 will drive the support platform 8 to rise below the loading platform 7 and rise synchronously with the lifting platform 3. This allows the support platform 8 to support the stacking and transferring mechanism during the lifting process of the lifting platform 3, ensuring that the stacking and transferring mechanism will not tilt or collapse during the transfer and lifting of the loading platform 7.
[0027] The stacking and transferring mechanism includes a track frame 5 horizontally arranged on the lifting platform 3, and a movable frame 6 horizontally arranged above the track frame 5. The movable frame 6 moves horizontally on the track frame 5. The track frame 5 is equipped with a third drive motor 16 that drives the movable frame 6 to move above it. The third drive motor 16 is located below the lifting platform 3. The third drive motor 16 uses a sprocket and chain meshing transmission method to drive the movable frame 6 to move horizontally on the track frame 5 so that the movable frame 6 can be moved off the lifting platform 3 and support the loading platform 7.
[0028] The first drive mechanism includes a second drive motor 12 located on one side of the gantry frame 2. The second drive motor 12 is connected to a second gearbox 21, and the second gearbox 12 and the second gearbox 21 are combined to form a permanent magnet synchronous traction machine. Both sides of the permanent magnet synchronous traction machine are synchronously connected to transmission traction steel ropes 13, and the transmission traction steel ropes 13 are connected to the lifting platform 3. Thus, the drive cooperation between the second drive motor 12 and the second gearbox 21 drives the transmission traction steel ropes 13 to pull the lifting platform 3 up and down inside the gantry frame 2.
[0029] A connecting frame 9 is provided between the transmission traction steel rope 13 and the lifting platform 3. The connecting frames 9 are all vertically located on both sides of the lifting platform 3 and are connected to the transmission traction steel rope 3. A third traction wheel 23 is rolled on the side of the connecting frame 9 to cooperate with the transmission traction steel rope 3. Thus, during the pulling process, the transmission traction steel rope 3 drives the third traction wheel 23 to move up and down along with the lifting platform 3 through friction.
[0030] The connecting frame 9 is equipped with a fourth traction wheel 24 and a fifth traction wheel 25 that move synchronously with it. The fourth traction wheel 24 is rolled on the upper side of the connecting frame 9, and the fifth traction wheel 25 is rolled on the lower side of the connecting frame 9. The transmission traction steel rope 13 passes through the fourth traction wheel 24 and the fifth traction wheel 25 and makes frictional contact with the fourth traction wheel 24 and the fifth traction wheel 25. Thus, the fourth traction wheel 24 and the fifth traction wheel 25 guide the transmission traction steel rope 13 when it drives the third traction wheel 23, preventing the transmission traction steel rope 13 from deviating during the transmission process.
[0031] A first traction wheel 19 and a second traction wheel 20 are also provided between the transmission traction steel rope 13 and the lifting platform 3. The first traction wheel 19 is rolled at the front and rear ends on both sides above the gantry frame 2, and the second traction wheel 20 is rolled at both sides above the gantry frame 2. The transmission traction steel rope 13 passes through the inside of the first traction wheel 19 and the second traction wheel 20 and makes frictional contact with the first traction wheel 19 and the second traction wheel 20. Thus, the first traction wheel 19 and the second traction wheel 20 guide the transmission traction steel rope 13 when it drives the third traction wheel 23, preventing the transmission traction steel rope 13 from deviating during the transmission process.
[0032] The lifting platform 3 is equipped with a reinforcing frame 22 that moves synchronously with it. The reinforcing frame 22 is vertically mounted on the lifting platform 3 and can limit the movement of the platform 7 on the lifting platform 3.
[0033] The second drive mechanism includes a first drive motor 10 that is vertically arranged at the bottom of both sides of the gantry 2. The bottom of the first drive motor 10 drives a first gearbox 17, and the bottom of the first gearbox 17 drives a drive wheel 18 that rolls on the ground rail 2. Thus, through the transmission between the first drive motor 10 and the first gearbox 17, the drive wheel 18 is driven to roll below the gantry 2, and the gantry 2 is driven to move on the ground rail 1.
[0034] The gantry 2 is provided with sliding guide wheels 11 that move synchronously with it. The sliding guide wheels 11 are all rolled at the front and rear ends of both sides below the gantry 2, and the sliding guide wheels 11 roll at the front and rear ends of the ground rail 1. Thus, when the gantry 2 slides on the ground rail 1 via the drive wheel 18, it can be prevented from sliding off the track.
[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.
Claims
1. A ground track stacker which is slidably arranged on a ground track, characterized in that, The gantry is slidably arranged on the ground rail, and a lifting platform is transversely arranged inside the gantry and moves up and down inside the gantry, the lifting platform is provided with a stacking and transferring mechanism that translates above the lifting platform, and the lifting platform and the stacking and transferring mechanism move up and down inside the gantry, a first driving mechanism is arranged on one side of the gantry, the first driving mechanism is drivingly connected with the lifting platform, and the first driving mechanism drives the lifting platform and the stacking and transferring mechanism to move up and down inside the gantry, second driving mechanisms are arranged on both sides of the bottom end of the gantry, the second driving mechanisms move in the same direction as the gantry, and the second driving mechanisms are drivingly connected with the ground rail.
2. The orbital stacker crane according to claim 1, characterized in that One side below the gantry is provided with a first moving table that moves synchronously therewith, the first moving table translates on the ground rail, and a vertical column that moves synchronously with the first moving table is vertically arranged on the first moving table, the vertical column is provided with a connecting block on the front side thereof, and a supporting table that moves synchronously with the connecting block is vertically arranged on the front side of the connecting block, and the supporting table moves up and down at the front side of the vertical column through the connecting block.
3. The straddle carrier of claim 1, wherein, The stacking and transferring mechanism comprises a track frame transversely arranged on the lifting platform, a moving frame is transversely arranged above the track frame, and the moving frame translates on the track frame, the track frame is provided with a third driving motor that drives the moving frame to move above the track frame, and the third driving motor is located below the lifting platform, and the third driving motor drives the moving frame to translate on the track frame in a meshing transmission mode of a chain wheel and a chain.
4. The straddle carrier of claim 1, wherein, The first driving mechanism comprises a second driving motor arranged on one side outside the gantry, the second driving motor is drivingly connected with a second gear box, and the second gear box and the second gear box are combined to form a permanent magnet synchronous traction machine, both sides of the permanent magnet synchronous traction machine are synchronously drivingly connected with transmission traction steel ropes, and the transmission traction steel ropes are drivingly connected with the lifting platform.
5. The orbital stacker crane of claim 4, wherein, Connecting frames are arranged between the transmission traction steel ropes and the lifting platform, the connecting frames are vertically located at both sides of the lifting platform, the connecting frames are drivingly connected with the transmission traction steel ropes, and third traction wheels that drivingly cooperate with the transmission traction steel ropes are rollingly arranged on the side surfaces of the connecting frames.
6. The ground-level rail stacker according to claim 5, characterized in that The connecting frames are provided with fourth traction wheels and fifth traction wheels that move synchronously therewith, the fourth traction wheels are rollingly arranged above the side surfaces of the connecting frames, the fifth traction wheels are rollingly arranged below the side surfaces of the connecting frames, the transmission traction steel ropes pass through the fourth traction wheels and the fifth traction wheels and frictionally contact the fourth traction wheels and the fifth traction wheels.
7. The orbital stacker crane of claim 4, wherein, First traction wheels and second traction wheels are further arranged between the transmission traction steel ropes and the lifting platform, the first traction wheels are rollingly arranged at the front and rear ends of both sides above the gantry, the second traction wheels are rollingly arranged at both sides above the gantry, and the transmission traction steel ropes pass through the first traction wheels and the second traction wheels and frictionally contact the first traction wheels and the second traction wheels.
8. The ground-level rail stacker according to claim 1, characterized in that, The lifting platform is provided with a reinforcing frame moving synchronously with the lifting platform, and the reinforcing frame is vertically arranged on the lifting platform and can limit the object table moving to the lifting platform through the reinforcing frame.
9. The ground-level rail stacker according to claim 1, characterized in that, The second driving mechanism comprises first driving motors vertically arranged at the bottom ends of the two sides of the gantry, the bottom end of each first driving motor is driven to be provided with a first gear box, and the bottom end of each first gear box is driven to be matched with a driving wheel rolling on the ground rail.
10. The orbital stacker crane of claim 9, wherein, The gantry is provided with sliding guide wheels moving synchronously with the gantry, and the sliding guide wheels are rolling arranged at the front and rear ends of the two sides below the gantry, and the sliding guide wheels are rolling at the front and rear ends of the ground rail.