Low pick face stacker
By using linkage assemblies and drop fork mechanisms, the picking height of the stacker crane is reduced, solving the problem that existing stacker cranes cannot pick up goods at low positions, and achieving efficient space utilization and increased load capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏健芮智能科技股份有限公司
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-19
AI Technical Summary
Existing stacker cranes cannot pick up goods at low positions below 700mm, resulting in wasted space and insufficient load capacity.
By replacing the direct-drive bottom beam with a linkage assembly, and combining it with a sinking fork mechanism and a lifting motor, the picking height is reduced, enabling ultra-low-position picking.
This increases the shelf's load capacity, reduces wasted space, and improves space utilization.
Smart Images
Figure CN224377589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stacker crane technology, and in particular to a low-lift stacker crane. Background Technology
[0002] Currently, stacker cranes are equipped with bottom beams, which have a certain height. Due to the height of the bottom beams, the lowest picking position is generally above 700mm from the ground. Stacker cranes cannot pick up goods below 700mm from the ground and cannot achieve low-position picking. Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a low-position picking stacker crane. Utility Model Content
[0003] The main technical problem solved by this utility model is to provide a low-retrieval stacker crane that can achieve ultra-low-position retrieval, increase the load capacity of the rack, reduce space waste, and improve space utilization.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a low-reach stacker crane is provided, which includes a gantry frame, a traveling mechanism, a track, ground spikes, a linkage assembly, a drop-down fork mechanism, and a lifting motor. The traveling mechanism is fixedly installed on the outer ends of the two columns of the gantry frame. The traveling mechanism is mounted on the track, which is fixed to the ground by ground spikes. The bottom of the traveling mechanisms on both sides is fixedly connected by a linkage assembly, and the height of the linkage assembly is the same as that of the track. The drop-down fork mechanism is vertically slidably installed in the middle of the gantry frame. A lifting motor is also installed on the side of the gantry frame. The lifting motor drives the drop-down fork mechanism to move up and down through a chain and sprocket.
[0005] Preferably, the linkage assembly includes a connecting rod and a limiting block. At least two sets of limiting blocks are installed on the side of the walking frame of the two walking mechanisms. The connecting rod is fixedly installed on the limiting block on the same side. The two connecting rods are located on both sides of the track and are parallel to each other. The limiting block adopts a split structure, including a first limiting block fixed on the walking frame and a second limiting block that cooperates with the first limiting block to lock and fix the connecting rod.
[0006] Preferably, the sinking fork mechanism includes a lifting frame, guide wheels, sinking brackets, and forks. Two rows of guide wheels are installed on the two lifting frames and roll in contact with the outer side of the gantry column. Sinking brackets are fixed at the bottom of the two lifting frames. The sinking bracket includes a vertical part fixedly connected to the bottom of the lifting frame and a horizontal part connecting the two vertical parts. The sinking bracket is concave and forks are also installed on the sinking bracket. The forks are installed in a sinking manner.
[0007] Preferably, the walking mechanism includes a walking frame, walking wheels, a walking motor, guide wheels, and brushes. The walking frame is rotatably mounted with walking wheels that travel on the surface of the track. The walking wheels are driven to rotate by the walking motor. Guide wheels that roll in contact with the sidewalls of the track are installed at the bottom of the walking frame and the bottom of the gantry column. The guide wheels are located on both sides of the track. A brush capable of sweeping away dust on the track is also installed on the outside of the walking frame.
[0008] Preferably, the bottom of the two columns of the gantry is also equipped with anti-collision components. The anti-collision components include a connecting plate installed at the bottom of the column and an anti-collision pad installed on the connecting plate. The anti-collision pad is opposite to the sinking fork mechanism and is made of elastic material.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] The two walking mechanisms are fixedly connected by a linkage assembly, and the linkage assembly is at roughly the same height as the track, which replaces the previous direct-connection bottom beam and can reduce the picking height;
[0011] The drop-down fork installation can further reduce the picking height, increase the rack load capacity, reduce space waste, and improve space utilization. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of a low-lift stacker crane.
[0013] Figure 2 This is a front view of a low-retrievability stacker crane.
[0014] Figure 3 This is a partial structural diagram of a low-retrievability stacker crane.
[0015] Figure 4 This is a schematic diagram of the sinking fork mechanism of a low-lift stacker crane.
[0016] Among them, 1. Gantry frame, 2. Traveling mechanism, 21. Traveling frame, 22. Traveling wheel, 23. Traveling motor, 24. Guide wheel, 25. Brush, 3. Rail, 4. Ground spike, 5. Linkage assembly, 51. Connecting rod, 52. Limiting block, 6. Drop fork mechanism, 61. Lifting frame, 62. Guide wheel, 63. Drop support, 64. Fork, 7. Lifting motor, 8. Anti-collision component, 81. Connecting plate, 82. Anti-collision pad. Detailed Implementation
[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0018] Please see Figures 1 to 4 The embodiments of this utility model include:
[0019] A low-reach stacker crane includes a gantry frame 1, a traveling mechanism 2, a track 3, ground spikes 4, a linkage assembly 5, a drop-down fork mechanism 6, and a lifting motor 7.
[0020] The gantry frame 1 has a traveling mechanism 2 fixedly installed on the outer ends of the two columns. The traveling mechanism 2 is mounted on the track 3, which is fixed to the ground by ground nails 4. The bottom of the two traveling mechanisms 2 is fixedly connected by a connecting rod assembly 5. The height of the connecting rod assembly 5 is about the same as that of the track 3. The connecting rod assembly 5 replaces the previous direct-connection bottom beam, which can reduce the picking height. The gantry frame 1 has a vertically sliding sinking fork mechanism 6 installed in the middle. The gantry frame 1 also has a lifting motor 7 installed on the side. The lifting motor 7 drives the sinking fork mechanism 6 to move up and down through a chain and sprocket.
[0021] The walking mechanism 2 includes a walking frame 21, walking wheels 22, a walking motor 23, guide wheels 24, and a brush 25. The walking frame 21 is rotatably mounted with walking wheels 22 that travel on the upper surface of the track 3. The walking wheels 22 are driven to rotate by the walking motor 23. Guide wheels 24 that roll in contact with the side wall of the track 3 are installed at the bottom of the walking frame 21 and the bottom of the column of the gantry 1. The guide wheels 24 are located on both sides of the track 3 and play a guiding and anti-tipping role, ensuring the stability of the gantry 1 during the walking process. A brush 25 that can sweep away dust on the track 3 is also installed on the outside of the walking frame 21 to prevent foreign objects from affecting the walking.
[0022] The linkage assembly 5 includes a connecting rod 51 and a limiting block 52. At least two sets of limiting blocks 52 are installed on the side of the walking frame 21 of the two walking mechanisms 2. The connecting rod 51 is fixedly inserted on the limiting block 52 on the same side. The two connecting rods 51 are located on both sides of the track 3 and are parallel to each other. The limiting block 52 adopts a split structure, including a first limiting block fixed on the walking frame 21 and a second limiting block that cooperates with the first limiting block to lock and fix the connecting rod.
[0023] The sinking fork mechanism 6 includes a lifting frame 61, guide wheels 62, sinking brackets 63, and forks 64. Two rows of guide wheels 62 are installed on the two lifting frames 61 and roll in contact with the outer side of the column of the gantry frame 1. The sinking brackets 63 are fixed at the bottom of the two lifting frames 61. The sinking brackets 63 include a vertical part 631 fixedly connected to the bottom of the lifting frame 61 and a horizontal part 632 connecting the two vertical parts 631. The sinking brackets 63 are concave. Forks 64 are also installed on the sinking brackets 63. The sinking installation of the forks 64 can further reduce the picking height.
[0024] The bottom of the two columns of the gantry frame 1 is also equipped with anti-collision components 8. The anti-collision components 8 include a connecting plate 81 installed at the bottom of the column and an anti-collision pad 82 installed on the connecting plate 81. The anti-collision pad 82 is opposite to the sinking fork mechanism 6. The anti-collision pad 82 is made of elastic material. The anti-collision pad 82 is set to prevent the sinking fork mechanism 6 from moving down too far and hitting the rail 3 and the linkage assembly 5.
[0025] This utility model relates to a low-retrieval stacker crane, which can achieve ultra-low-position retrieval, increase the load capacity of the rack, reduce space waste, and improve space utilization.
[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A low-retrievable stacker crane, characterized in that: The system includes a gantry frame, a traveling mechanism, a track, ground spikes, a linkage assembly, a drop-down fork mechanism, and a lifting motor. The traveling mechanism is fixedly installed on the outer ends of the two uprights of the gantry frame. The traveling mechanism is mounted on the track, which is fixed to the ground by ground spikes. The bottom of the traveling mechanism on both sides is fixedly connected by a linkage assembly, and the linkage assembly is at the same height as the track. The drop-down fork mechanism is vertically slidably installed in the middle of the gantry frame. A lifting motor is also installed on the side of the gantry frame. The lifting motor drives the drop-down fork mechanism to move up and down through a chain and sprocket.
2. The low-retrievable stacker crane according to claim 1, characterized in that: The linkage assembly includes connecting rods and limiting blocks. At least two sets of limiting blocks are installed on the side of the walking frame of the two walking mechanisms. Connecting rods are fixedly installed on the limiting blocks on the same side. The two connecting rods are located on both sides of the track and are parallel to each other. The limiting blocks adopt a split structure, including a first limiting block fixed on the walking frame and a second limiting block that cooperates with the first limiting block to lock and fix the connecting rod.
3. A low-lift stacker crane according to claim 1, characterized in that: The sinking fork mechanism includes a lifting frame, guide wheels, sinking brackets, and forks. Two rows of guide wheels are installed on the two lifting frames and roll in contact with the outer side of the gantry column. Sinking brackets are fixed at the bottom of the two lifting frames. The sinking bracket includes a vertical part fixedly connected to the bottom of the lifting frame and a horizontal part connecting the two vertical parts. The sinking bracket is concave and forks are also installed on the sinking bracket. The forks are installed in a sinking manner.
4. A low-retrievable stacker crane according to claim 1, characterized in that: The traveling mechanism includes a traveling frame, traveling wheels, a traveling motor, guide wheels, and brushes. The traveling frame is rotatably mounted with traveling wheels that travel on the surface of the track. The traveling wheels are driven to rotate by the traveling motor. Guide wheels that roll in contact with the side walls of the track are installed at the bottom of the traveling frame and the bottom of the gantry column. The guide wheels are located on both sides of the track. Brushes that can sweep away dust on the track are also installed on the outside of the traveling frame.
5. A low-lift stacker crane according to claim 1, characterized in that: The bottom of the two columns of the gantry frame is also equipped with anti-collision components. The anti-collision components include a connecting plate installed at the bottom of the column and an anti-collision pad installed on the connecting plate. The anti-collision pad is opposite to the sinking fork mechanism and is made of elastic material.