Stacker hoist mechanism
By improving the innovative layout of the motor assembly and pulley transmission assembly, the problems of large space occupation and confusing rotation direction of traditional stacker cranes have been solved, achieving higher warehouse space utilization and equipment safety, and reducing the risk of installation errors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU MAIKAGE AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-04
AI Technical Summary
The traditional stacker crane's drum layout occupies a large amount of lateral space in the aisle, resulting in low warehouse space utilization. Furthermore, the confusion of rotation directions can easily lead to equipment failure and installation difficulties.
The lifting motor assembly and pulley transmission assembly are set in parallel aisle, with the pulley blocks rotating in the same direction. A lifting point weighing assembly is installed, along with an anti-jump device, to reduce the space occupied by the components and the probability of installation errors. The weight of the goods is monitored in real time, improving safety.
It effectively reduces the space occupied by aisles, increases the density of warehouse shelves, reduces the probability of installation errors, and enhances equipment safety and real-time monitoring capabilities.
Smart Images

Figure CN224590616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stacker crane technology, and specifically to a stacker crane lifting mechanism. Background Technology
[0002] Stacker cranes are automated equipment in automated storage and retrieval systems (AS / RS) responsible for the precise vertical and horizontal handling of goods. They mainly run along dedicated tracks on aisle racks within the warehouse. Through a lifting platform supported by uprights and a telescopic fork mechanism, they enable the storage and retrieval of pallets or boxes on racks of different heights. They can operate continuously without human intervention and are widely used in modern warehousing centers in e-commerce, automobile manufacturing, pharmaceuticals, cold chain and other fields.
[0003] Traditional stacker cranes use drums placed perpendicular to the aisle. This layout means the axial length of the drum directly occupies the lateral space of the aisle. Combined with the safety clearance required for operation, this necessitates wider aisle dimensions to meet the equipment's operational needs, indirectly reducing the density of warehouse shelving and lowering the overall storage space utilization. Furthermore, traditional stacker crane drums require distinguishing between left and right rotation. During installation, the drum rotation direction must be strictly identified and matched to the specific installation position. Confusion or incorrect installation can cause wire rope tangling, jamming of the lifting mechanism, and even equipment malfunctions, increasing installation and commissioning time and the probability of errors. Utility Model Content
[0004] The purpose of this utility model is to provide a stacker crane lifting mechanism to solve the above problems.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution, including:
[0006] A hoisting motor assembly and a pulley transmission assembly are connected by a traction rope. A lifting point weighing assembly is installed below the pulley transmission assembly. The hoisting motor assembly and the pulley transmission assembly are arranged parallel to the roadway.
[0007] The lifting motor assembly includes a mounting base, on which a drive motor is mounted. A traction drum is mounted on one side of the drive motor, and an anti-jump device is mounted on the outside of the traction drum.
[0008] The pulley transmission assembly includes a pulley block, and the pulley blocks rotate in the same direction.
[0009] The lifting point weighing assembly includes a traction joint, a traction device is installed on the top of the traction joint, and a weighing sensor is installed on one side of the traction device.
[0010] As a further description of the above technical solution, the mounting base is mounted on the top platform via a supporting square tube, and a supporting plate is installed at the end of the mounting base.
[0011] As a further description of the above technical solution, one end of the traction drum rotating shaft is rotatably connected to the traction plate through a bearing seat, and the other end of the traction drum rotating shaft is rotatably connected to the output end of the drive motor.
[0012] As a further description of the above technical solution, an oil receiving tray is provided below the traction drum, and the edge of the oil receiving tray is detachably connected to the mounting base.
[0013] As a further description of the above technical solution, the anti-jump device includes a fixing plate, the ends of which are detachably connected to a support plate and a drive motor, respectively.
[0014] As a further description of the above technical solution, an anti-jump block is installed on the top of the fixing plate, and two sets of the anti-jump blocks are symmetrically arranged.
[0015] As a further description of the above technical solution, the pulley block includes a stationary pulley and a movable pulley, and an anti-slip plate is installed on the outside of the stationary pulley.
[0016] As a further description of the above technical solution, the pulling device includes a pulling rod, the top of which is detachably connected to the weighing lifting point.
[0017] As a further description of the above technical solution, a screw is installed on the top of the weighing point, and the screw is mounted on a fixed block.
[0018] As a further description of the above technical solution, the bottom of the traction joint is respectively connected to a traction rope, and the end of the traction rope is equipped with a rope clamp.
[0019] The beneficial effects of this utility model are as follows:
[0020] 1. This utility model improves the parallel arrangement of the motor assembly and pulley transmission assembly in the aisle, effectively reducing the space occupied by the components, and is suitable for use in narrow aisles and narrow cargo scenarios;
[0021] 2. In this utility model, the pulley blocks of the pulley transmission assembly rotate in the same direction, which reduces the types of transmission rod assemblies and effectively reduces the probability of installation errors;
[0022] 3. In this utility model, a lifting point weighing component is installed at the traction rope lifting point below the pulley transmission assembly, which can monitor the weight of the goods in real time;
[0023] 4. In this utility model, an anti-jump block is provided on the outside of the traction drum and an anti-jump plate is installed on the outside of the stationary pulley to prevent the wire rope from jumping out of the traction groove after it breaks, thus effectively improving the safety of use.
[0024] To more clearly illustrate the structural features and functions of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the lifting mechanism of the stacker crane of this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the lifting motor assembly of this utility model;
[0027] Figure 3 This is a schematic diagram of the pulley transmission assembly structure of this utility model;
[0028] Figure 4 This is a structural schematic diagram of the lifting point weighing component of this utility model.
[0029] Figure label:
[0030] 1. Traction rope; 2. Lifting motor assembly; 21. Mounting base; 22. Drive motor; 23. Traction drum; 24. Anti-jump device; 241. Fixing plate; 242. Anti-jump block; 25. Support plate; 26. Bearing seat; 27. Oil receiving tray; 3. Pulley transmission assembly; 31. Pulley block; 311. Stationary pulley; 312. Moving pulley; 313. Anti-jump plate; 4. Lifting point weighing assembly; 41. Traction joint; 42. Pulling device; 421. Pulling rod; 422. Weighing lifting point; 43. Weighing sensor; 44. Screw; 45. Fixing block; 46. Rope clamp; 5. Support square tube; 6. Top platform. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0032] like Figures 1-4 As shown, in one embodiment, a stacker crane lifting mechanism includes:
[0033] The lifting motor assembly 2 and the pulley transmission assembly 3 are connected by a traction rope 1. A lifting point weighing assembly 4 is installed below the pulley transmission assembly 3.
[0034] Understandably, the parallel aisle arrangement of the lifting motor assembly 2 and pulley transmission assembly 3, compared to the traditional vertical aisle layout, allows the axial dimension of the lifting mechanism to extend along the aisle length, effectively reducing the occupation of the aisle's lateral space. This not only adapts to narrower aisles but also flexibly addresses the storage and retrieval needs of narrow-sized goods, significantly improving the layout density and space utilization of warehouse racks. Meanwhile, the lifting point weighing assembly 4 is installed in the force transmission path, enabling real-time capture of weight changes during the lifting and movement of goods.
[0035] Please continue reading. Figures 1-4 In this embodiment, the lifting motor assembly 2 includes a mounting base 21, on which a drive motor 22 is fixed by a combination of positioning pins and bolts. The output end of the drive motor 22 is rotatably connected to the central shaft of the traction drum 23 on the same side via a coupling. The traction drum 23 adopts a hollow cylindrical structure, and a spiral traction groove is machined on the outer surface to adapt to the winding trajectory of the wire rope. In addition, an anti-jump device 24 is provided on the outside of the drum to ensure operational safety.
[0036] Specifically, the mounting base 21 is installed on the top platform 6 via the supporting square tube 5. The supporting square tube 5 not only bears the load, but also forms a bottom maintenance space through the height difference.
[0037] Correspondingly, a support plate 25 is installed at the end of the mounting base 21, one end of the rotating shaft of the traction drum 23 is rotatably connected to the traction plate through the bearing seat 26, and the other end of the rotating shaft of the traction drum 23 is rotatably connected to the output end of the drive motor 22.
[0038] Furthermore, to prevent lubricating grease from dripping onto the wire rope and contaminating equipment or goods, an oil receiving tray 27 is provided directly below the traction drum 23; the edge of the oil receiving tray 27 is folded upward to form a disc-shaped oil storage tank.
[0039] Specifically, the edge of the disc is detachably connected to the mounting base 21 via a snap-fit or other connecting structure, making it easy to disassemble and clean grease regularly.
[0040] It should be noted in detail that the anti-jump device 24 includes a fixing plate 241, and the two ends of the fixing plate 241 are detachably connected to the edge of the support plate 25 and the end cover of the drive motor 22 by bolts or other connecting parts.
[0041] Correspondingly, two sets of anti-jump blocks 242 are symmetrically installed on the top of the fixing plate 241 along the axis of the traction drum 23. The anti-jump blocks 242 can be made of wear-resistant material and maintain a certain gap with the surface of the wire rope.
[0042] Understandably, when the wire rope bounces due to sudden breakage or a sudden change in tension, the anti-jump block 242 can quickly prevent the wire rope from detaching from the traction groove, thus preventing it from getting tangled in other parts or swinging and injuring people, effectively reducing the probability of safety accidents.
[0043] Please continue reading. Figures 1-4 In this embodiment, the pulley transmission assembly 3 includes a pulley group 31, and the pulley group 31 rotates in the same direction, so there is no need to distinguish between left and right rotation directions;
[0044] Specifically, the pulley block 31 includes a stationary pulley 311 and a movable pulley 312. The stationary pulley 311 is used to change the direction of the wire rope, while the movable pulley 312 is connected to the lifting point weighing component 4 and moves synchronously with the lifting of the goods.
[0045] An anti-jump plate 313 is installed on the outside of the stationary pulley 311. When the wire rope bounces abnormally at the pulley, the anti-jump plate 313 can effectively limit its displacement range.
[0046] Understandably, the uniform rotation direction of pulley block 31 ensures that all transmission rod components have the same structural parameters, eliminating the need for differentiation during production, warehousing, and installation. This not only reduces the variety of parts but also effectively avoids installation errors and operational risks caused by confusion in rotation direction.
[0047] Please continue reading. Figures 1-4 In this embodiment, the lifting point weighing component 4 includes a traction joint 41, a traction device 42 is installed on the top of the traction joint 41, and a weighing sensor 43 is installed on one side of the traction device 42.
[0048] Furthermore, the pulling device 42 includes a pulling link 421, the top of which is detachably connected to the weighing point 422; correspondingly, a screw 44 is vertically installed on the top of the weighing point 422, and the screw 44 passes through the threaded hole on the fixing block 45 and is locked by double nuts.
[0049] Specifically, the bottom of the traction joint 41 is clamped with the traction rope 1, and the end of the traction rope 1 is equipped with a rope clamp 46, which further prevents the rope head from slipping by interlocking clamps.
[0050] Specifically, the load cell 43 is cylindrical and is detachably connected to the weighing rod through the weighing suspension point 422; during operation, the shear force generated by the steel wire traction rope 1 is used to detect the stress on the pressure sensor, thereby weighing the goods.
[0051] Through the above technical solution, this application can effectively reduce the space occupied by components, reduce the types of transmission rod components, effectively reduce the probability of installation errors, and monitor the weight of goods in real time during operation.
[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A stacker crane lifting mechanism, characterized in that, include: The hoisting motor assembly (2) and the pulley transmission assembly (3) are rotatably connected by a traction rope (1). A lifting point weighing assembly (4) is installed below the pulley transmission assembly (3). The hoisting motor assembly (2) and the pulley transmission assembly (3) are arranged parallel to the roadway. The lifting motor assembly (2) includes a mounting base (21), a drive motor (22) is mounted on the mounting base (21), a traction drum (23) is mounted on one side of the drive motor (22), and an anti-jump device (24) is mounted on the outside of the traction drum (23). The pulley transmission assembly (3) includes a pulley block (31) in which the pulley blocks (31) rotate in the same direction. The lifting point weighing assembly (4) includes a traction joint (41), a traction device (42) is installed on the top of the traction joint (41), and a weighing sensor (43) is installed on one side of the traction device (42).
2. The stacker crane lifting mechanism according to claim 1, characterized in that, The mounting base (21) is mounted on the top platform (6) via a supporting square tube (5), and a support plate (25) is mounted on the end of the mounting base (21).
3. The stacker crane lifting mechanism according to claim 1, characterized in that, One end of the rotating shaft of the traction drum (23) is rotatably connected to the traction plate through the bearing seat (26), and the other end of the rotating shaft of the traction drum (23) is rotatably connected to the output end of the drive motor (22).
4. The stacker crane lifting mechanism according to claim 3, characterized in that, An oil receiving tray (27) is provided below the traction drum (23), and the edge of the oil receiving tray (27) is detachably connected to the mounting base (21).
5. The stacker crane lifting mechanism according to claim 1, characterized in that, The anti-jump device (24) includes a fixing plate (241), the ends of which are detachably connected to a support plate (25) and a drive motor (22).
6. The stacker crane lifting mechanism according to claim 5, characterized in that, The top of the fixing plate (241) is equipped with anti-jump blocks (242), and two sets of anti-jump blocks (242) are symmetrically arranged.
7. The stacker crane lifting mechanism according to claim 1, characterized in that, The pulley block (31) includes a stationary pulley (311) and a movable pulley (312), and an anti-slip plate (313) is installed on the outside of the stationary pulley (311).
8. The stacker crane lifting mechanism according to claim 1, characterized in that, The pulling device (42) includes a pulling link (421), the top of which is detachably connected to the weighing lifting point (422).
9. The stacker crane lifting mechanism according to claim 8, characterized in that, A screw (44) is installed on the top of the weighing point (422), and the screw (44) is mounted on the fixing block (45).
10. The stacker crane lifting mechanism according to claim 1, characterized in that, The bottom of the traction joint (41) is respectively connected to the traction rope (1), and the end of the traction rope (1) is equipped with a rope clamp (46).