A stacker lifting device

Abstract

The utility model provides a kind of stacker lifting device, the utility model includes stacker frame, wherein, still include lifting structure, lifting structure includes driving device, chain structure and loading platform, chain structure includes first chain and second chain arranged side by side, loading platform is located at the center of stacker frame, driving device includes driving motor, speed reducer and reversing assembly, the output of driving motor is connected with speed reducer transmission and the output of speed reducer is connected with reversing assembly transmission.The utility model drives a chain wheel by a motor speed reducer, controls two groups of chains on chain wheel synchronous operation, improves synchronism, chain is not easy to wear, reduces the number of repair and replacement.

Description

Technical Field

[0001] This utility model relates to the field of automated storage and retrieval systems, and in particular to a stacker crane lifting device. Background Technology

[0002] Automated storage and retrieval systems (AS / RS) are an important component of logistics, playing a significant role in improving productivity and reducing costs. Stacker cranes are the most crucial lifting and stacking equipment in AS / RS, capable of moving back and forth within the warehouse's aisles. The main structure of a stacker crane consists of a frame composed of two uprights, an upper crossbeam, and a lower crossbeam. Stacker cranes are widely used in warehousing, logistics, and manufacturing industries.

[0003] Existing stacker crane lifting structures typically employ a single-drive, double-drum wire rope lifting mechanism. This structure has limited lifting capacity, and due to errors in the manufacturing process of the two drums, asynchronous control can easily lead to deviations, causing the loading platform to tilt. This can result in the loaded goods tilting or even falling, reducing operational safety. Furthermore, the wire rope is prone to wear, requiring frequent inspection and replacement, affecting equipment performance and safety. The wire rope is also prone to tangling during lifting and lowering. Over time, the wire rope can become stretched, leading to inaccurate height positioning. Utility Model Content

[0004] To address the shortcomings mentioned above, this utility model provides a stacker crane lifting device that uses a motor reducer to drive a sprocket, controlling two sets of chains on the sprocket to run synchronously. This improves synchronization, reduces chain wear, and decreases the frequency of maintenance and replacement.

[0005] To address the aforementioned problems, this utility model provides a stacker crane lifting device, including a stacker crane frame. The top and bottom of the stacker crane frame are respectively equipped with upper and lower crossbeams. The device also includes a lifting structure, comprising a drive unit, a chain structure, and a loading platform. The drive unit is mounted on the lower crossbeam, and a lower crossbeam sprocket is mounted at the bottom of the lower crossbeam. An upper crossbeam sprocket is mounted at the bottom of the upper crossbeam. The chain structure includes a first chain and a second chain arranged in parallel. Both the first and second chains are connected to the output end of the drive unit. The top and bottom ends are respectively wound around the upper crossbeam sprocket and the lower crossbeam sprocket. The loading platform is located at the center of the stacker crane frame, and the left end of the loading platform is connected to the first chain, and the right end of the loading platform is connected to the second chain. The drive device includes a drive motor, a reducer and a reversing assembly. The reversing assembly is set on the right side of the lower crossbeam. The top of the reversing assembly is mounted on a mounting bracket. The drive motor and the reducer are set on the mounting bracket, and the drive motor is located above the reducer. The output end of the drive motor is drivenly connected to the reducer, and the output end of the reducer is drivenly connected to the reversing assembly.

[0006] Preferably, the reversing assembly includes a reversing housing, and a bearing housing, a bearing, a support rod, a bushing, and a sprocket are disposed inside the reversing housing. The bearing housing has a bearing and a support rod respectively disposed at its bottom and side ends. The reducer output shaft penetrates the bearing housing and the bottom end of the reducer output shaft is connected to the bearing. The bushing covers the reducer output shaft and the sprocket is disposed on the bushing.

[0007] Preferably, the bearing housing includes a first bearing housing and a second bearing housing, and the support rod includes a first support rod and a second support rod. The first bearing housing is located above the second bearing housing and is connected to the second bearing housing through the first support rod and the second support rod.

[0008] Preferably, the sprocket includes a first sprocket and a second sprocket arranged in parallel, both the first sprocket and the second sprocket are mounted on a bushing, and the first sprocket is connected to the first chain and the second sprocket is connected to the second chain.

[0009] Preferably, the upper crossbeam sprocket includes a first upper crossbeam sprocket and a second upper crossbeam sprocket. The first upper crossbeam sprocket is located on the left side of the upper crossbeam and the second upper crossbeam sprocket is located on the right side of the upper crossbeam. The top end of the first chain is connected to the first upper crossbeam sprocket, and the top end of the second chain is connected to the second upper crossbeam sprocket.

[0010] Preferably, the lower crossbeam sprocket includes a first lower crossbeam sprocket and a second lower crossbeam sprocket. The first lower crossbeam sprocket is located on the left side of the lower crossbeam and the second lower crossbeam sprocket is located on the right side of the lower crossbeam. The bottom end of the first chain is connected to the first lower crossbeam sprocket, and the bottom end of the second chain is connected to the second lower crossbeam sprocket.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. This utility model adopts chain traction lifting, which improves the load-bearing capacity.

[0013] 2. The chain used in this utility model is two independent chains, which avoids the tangling of traditional steel wire ropes during operation and affects the operation of the equipment.

[0014] 3. In this utility model, two sets of chains are wound around the same sprocket, which facilitates control, maintains synchronization, makes the loading platform run smoothly, stabilizes the equipment, and improves work efficiency.

[0015] 4. This utility model adopts chain traction lifting, which improves service life. The chain has stronger wear resistance and can be replaced in sections, saving usage costs and reducing maintenance frequency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a front view of the driving device according to an embodiment of the present invention;

[0018] Figure 3 This is a top view of the driving device according to an embodiment of this utility model;

[0019] Figure 4 This is a side view of the structural driving device of an embodiment of this utility model;

[0020] Figure 5 This is a front view of the commutation component according to an embodiment of this utility model;

[0021] Figure 6 This is a top view of the commutation assembly according to an embodiment of this utility model;

[0022] Figure 7 This is a side view of the commutation assembly according to an embodiment of the present invention.

[0023] Explanation of key component symbols:

[0024] 1. Loading platform; 2. Stacker crane frame; 3. Chain; 4. Drive unit; 21. Upper crossbeam; 22. Upper crossbeam sprocket; 23. Lower crossbeam; 24. Lower crossbeam sprocket; 2. Lateral movement device; 41. Brake device; 42. Drive motor; 43. Reducer; 44. Reversing assembly; 441. Bearing housing; 442. Reducer output shaft; 443. Bearing; 444. Bushing; 445. Sprocket; 446. Support rod. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and examples, but the examples given are not intended to limit the present utility model.

[0026] like Figures 1-7 As shown, an embodiment of this utility model is a stacker crane lifting device, which is applied to stacker crane equipment.

[0027] In this embodiment, an upper crossbeam 21 and a lower crossbeam 23 are installed on the upper part and the bottom of the stacker frame 2, respectively. A lifting structure is provided at the center of the stacker frame 2, and the lifting structure is located between the upper crossbeam 21 and the lower crossbeam 23.

[0028] In this embodiment, the lifting structure includes a drive device 4, two chains 3, and a loading platform 1. The drive device 4 is mounted on the lower crossbeam 23, and an upper crossbeam sprocket 22 is mounted on the bottom of the upper crossbeam 21. The two chains 3 include a first chain and a second chain arranged in parallel. The upper crossbeam sprocket 22 includes a first upper crossbeam sprocket and a second upper crossbeam sprocket. The first upper crossbeam sprocket is located on the left side of the upper crossbeam 21, and the second upper crossbeam sprocket is located on the right side of the upper crossbeam 21. The top end of the first chain is wound around the first upper crossbeam sprocket, and the top end of the second chain is wound around the second upper crossbeam sprocket. Both the first chain and the second chain are connected to the output end of the drive device 4.

[0029] In this embodiment, the loading platform 1 is located between the upper crossbeam 21 and the lower crossbeam 23. The upper side of the first chain is connected to the top left end of the loading platform 1, and the lower side of the first chain is connected to the bottom left end of the loading platform 1. The upper side of the second chain is connected to the top right end of the loading platform 1, and the lower side of the second chain is connected to the bottom right end of the loading platform 1.

[0030] In this embodiment, a brake device 41 is provided on the drive device 2, and the brake device 41 is mounted on the drive motor 42.

[0031] In this embodiment, the drive device 2 includes a drive motor 42, a reducer 43, and a commutation assembly 44. The reducer 43 and the commutation assembly 44 are mounted on the lower crossbeam 23, and the drive motor 42 is connected to the reducer 43 in a transmission connection.

[0032] In this embodiment, the output of the drive motor 42 is transmitted to the reversing assembly 44 via the reducer 43, causing the reversing assembly 44 to rotate. Both chains 3 are wound into or out of the reversing assembly 44, thus lifting both ends of the loading platform 1. At the same time, braking can be achieved through the brake device 41.

[0033] In this embodiment, the reversing assembly 44 includes a bearing housing 441, a reducer output shaft 442, a bearing 443, a bushing 444, a sprocket 445, and a support rod 446. The sprocket 445 is rotatably connected to the reducer output shaft 442, and both chains 3 are wound around the sprocket 445.

[0034] In this embodiment, the bearing housing 441 includes a first bearing housing and a second bearing housing, the support rod 446 includes a first support rod and a second support rod, the first bearing housing is located above the second bearing housing and is connected to the second bearing housing through the first support rod and the second support rod, the sprocket 445 includes a first sprocket and a second sprocket arranged in parallel, the first sprocket and the second sprocket are both arranged on the bushing 444, and the first sprocket is correspondingly connected to the first chain, and the second sprocket is correspondingly connected to the second chain.

[0035] In this embodiment, both the first sprocket and the second sprocket are rotatably connected via the output shaft 442 of the reducer. Both the first bearing housing and the second bearing housing are mounted on the lower crossbeam 23. The bearing 443 is fixedly mounted on the second bearing housing. The first support rod and the second support rod are both mounted between the first bearing housing and the second bearing housing. Both the first sprocket and the second sprocket are mounted on the output shaft 442 of the reducer, and the bushing 444 is mounted on the output shaft 442 of the reducer. Axial axial restraint is formed between the first sprocket and the second sprocket on the side away from the reducer 43. The bearing housing 441 provides stable support for the reducer 43 and the sprocket 445, and prevents the sprocket 445 from moving axially.

[0036] In this embodiment, one end of the chain 3 is connected and fixed to both ends of the bottom of the loading platform 1, and the other end is wrapped around the sprocket 445, passes over the lower crossbeam sprocket 24 at the bottom of the lower crossbeam 23, then passes through the sprocket 22 of the upper crossbeam 21, and then is connected and fixed to both ends of the top of the loading platform 1.

[0037] In this embodiment, specifically, one end of the first chain is connected and fixed to the bottom left end of the loading platform 1, and the other end of the first chain is wrapped around the sprocket and passes around the first lower crossbeam sprocket at the bottom of the lower crossbeam 23, then passes through the first upper crossbeam sprocket of the upper crossbeam 21, and then is connected and fixed to the top left end of the loading platform 1; one end of the second chain is connected and fixed to the bottom right end of the loading platform 1, and the other end of the second chain is wrapped around the sprocket and passes around the second lower crossbeam sprocket at the bottom of the lower crossbeam 23, then passes through the second upper crossbeam sprocket of the upper crossbeam 21, and then is connected and fixed to the top right end of the loading platform 1.

[0038] In this embodiment, the method of use is as follows: the drive motor 42 rotates, driving the output shaft 442 of the reducer 43 to rotate. The sprocket 445 is mounted on the output shaft 442 of the reducer and rotates with it. The chain 3 is wound around the sprocket 445 and rotates with the sprocket 445, thereby causing the chain 3 to drive the loading platform 1 to rise and fall. Because both chains 3 are wound around the sprocket 445, the raising and lowering of the chains 3 can be better synchronized, thereby controlling the smooth raising and lowering of the loading platform 1, keeping the loading platform 1 level, and preventing tilting that could cause a system alarm or cargo tipping.

[0039] Those skilled in the art can connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence, and the sequential operation order between each electrical component to complete the electrical connection, are well-known technologies in the field, and will not be described further regarding electrical control.

[0040] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0041] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0044] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A stacker crane lifting device, comprising a stacker crane frame, wherein corresponding upper and lower crossbeams are respectively installed at the top and bottom of the stacker crane frame, characterized in that, The system also includes a lifting structure comprising a drive unit, a chain structure, and a loading platform. The drive unit is mounted on a lower crossbeam, with a lower crossbeam sprocket mounted at the bottom of the lower crossbeam and an upper crossbeam sprocket mounted at the bottom of the upper crossbeam. The chain structure includes a first chain and a second chain arranged in parallel, both connected to the output end of the drive unit. The top and bottom ends of the first chain are wound around the upper and lower crossbeam sprockets, respectively. The loading platform is located at the center of the stacker crane frame, with its left end connected to the first chain and its right end connected to the second chain. The drive unit includes a drive motor, a reducer, and a reversing assembly. The reversing assembly is located on the right side of the lower crossbeam, with a mounting bracket mounted on the top of the reversing assembly. The mounting bracket houses the drive motor and the reducer, with the drive motor positioned above the reducer. The output end of the drive motor is connected to the reducer, and the output end of the reducer is connected to the reversing assembly.

2. The stacker crane lifting device as described in claim 1, characterized in that, The reversing assembly includes a reversing housing, within which a bearing housing, a bearing, a support rod, a bushing, and a sprocket are disposed. The bearing housing has a bearing at its bottom end and a support rod at its side end. The reducer output shaft penetrates the bearing housing and the bottom end of the reducer output shaft is connected to the bearing. The bushing covers the reducer output shaft and the sprocket is disposed on the bushing.

3. A stacker crane lifting device as described in claim 2, characterized in that, The bearing housing includes a first bearing housing and a second bearing housing, and the support rod includes a first support rod and a second support rod. The first bearing housing is located above the second bearing housing and is connected to the second bearing housing through the first support rod and the second support rod.

4. A stacker crane lifting device as described in claim 3, characterized in that, The sprockets include a first sprocket and a second sprocket arranged in parallel. Both the first sprocket and the second sprocket are mounted on a bushing, and the first sprocket is connected to the first chain, and the second sprocket is connected to the second chain.

5. A stacker crane lifting device as described in claim 4, characterized in that, The upper crossbeam sprocket includes a first upper crossbeam sprocket and a second upper crossbeam sprocket. The first upper crossbeam sprocket is located on the left side of the upper crossbeam and the second upper crossbeam sprocket is located on the right side of the upper crossbeam. The top end of the first chain is connected to the first upper crossbeam sprocket, and the top end of the second chain is connected to the second upper crossbeam sprocket.

6. A stacker crane lifting device as described in claim 5, characterized in that, The lower crossbeam sprocket includes a first lower crossbeam sprocket and a second lower crossbeam sprocket. The first lower crossbeam sprocket is located on the left side of the lower crossbeam and the second lower crossbeam sprocket is located on the right side of the lower crossbeam. The bottom end of the first chain is connected to the first lower crossbeam sprocket, and the bottom end of the second chain is connected to the second lower crossbeam sprocket.

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