Lifting device for stacking machine and assembly structure of lifting device

Abstract

The utility model relates to a lifting device for a stacking machine and an assembly structure of the lifting device, and belongs to the technical field of stacking machines. The lifting device comprises a lifting assembly, a support and a dust cover. Wherein the lifting assembly is connected with the driving shaft through the locking disc, the synchronous belt wheel, the spacer bush, the oil retainer, the bearing and other components are sequentially arranged on the driving shaft, a bearing flange plate is adopted to replace a traditional mounted bearing, and radial run-out and cost are reduced; the upper end of the support is provided with a notch matched with the locking disc, so that suction caused by interference fit is avoided, and disassembly and maintenance are facilitated; the dustproof cover covers the exterior of the lifting assembly to provide protection. The structure is optimized, the problems that a traditional design is prone to abrasion, difficult to maintain, high in cost and the like are solved, and operation stability and economical efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, and in particular to a lifting device for a stacker crane and its assembly structure. Background Technology

[0002] With the development of modern intelligent warehousing technology, automated logistics systems with stacker cranes as the core equipment have emerged. This technology integrates high-precision positioning, multi-dimensional motion control and intelligent scheduling algorithms to achieve efficient coordination of operations such as goods entering and leaving the warehouse, sorting and turnover, and thus gives rise to vertical handling execution mechanisms with lifting device components as the core.

[0003] In related technologies, traditional hoisting device designs employ a support-driven drive system, using an interference fit between the shaft hole and a locking disc to achieve structural fixation. The drive shaft end relies on a mounted bearing for radial constraint, and the overall architecture is assembled from standardized purchased components. This design mode meets basic functional requirements through modular configuration and has the advantage of rapid deployment.

[0004] However, the aforementioned standardized design still faces technical bottlenecks:

[0005] First, the interference fit between the support shaft hole and the locking plate makes the assembly accuracy extremely sensitive to machining tolerances, making disassembly difficult and easily causing structural damage during later maintenance.

[0006] Second, the rigid constraint of mounted bearings, under long-term dynamic load, may lead to wear failure of the drive shaft due to the cumulative effect of radial runout, and may even cause shaft breakage under extreme working conditions.

[0007] Third, while the integration solution of purchasing components from multiple vendors reduces the manufacturing cost of individual units, the adaptation losses and redundant designs caused by differences in interface standards actually increase the total life cycle cost of the system.

[0008] Therefore, the reliability defects and cost optimization issues of the aforementioned core components remain unresolved. Utility Model Content

[0009] In response to the shortcomings of the existing production technology, the applicant provides a lifting device and its assembly structure for a stacker crane, thereby avoiding interference fit between the shaft hole and the locking plate, and making it easier for inspectors to observe the internal operation of the lifting device components, thus facilitating maintenance.

[0010] The technical solution adopted in this utility model is as follows:

[0011] A lifting device for a stacker crane, comprising:

[0012] Lifting components and supports;

[0013] The lifting assembly includes a lifting reduction motor;

[0014] The lifting reduction motor is connected to the drive shaft via a locking disc;

[0015] The drive shaft is sequentially configured along the axial direction with a synchronous pulley, a flat key, a spacer, a first oil retainer ring, a bearing, a second oil retainer ring, and a washer.

[0016] The synchronous pulley is located on the opposite side of the locking disc from the lifting reduction motor;

[0017] The spacer is mounted on the drive shaft and is in close contact with the side of the timing pulley;

[0018] The first oil baffle is mounted on the drive shaft and is in close contact with the spacer.

[0019] The bearing is mounted on the drive shaft and is in close contact with the first oil retainer ring;

[0020] The other side of the bearing is connected to the bearing flange, and the second oil retainer and washer are set tightly against the bearing;

[0021] The other side of the bearing flange is connected to the bearing outer ring pressure plate;

[0022] A shaft end pressure plate is fixed to the shaft end of the drive shaft;

[0023] The bearing flange is also equipped with a brass grease nipple.

[0024] In one embodiment, the upper end of the support is provided with a notch, the shape of which matches the contour of the locking disc, in order to avoid the locking disc from being sucked together due to interference fit between the mounting surface of the support.

[0025] In one embodiment, the inner hole of the bearing flange mates with the outer ring of the bearing and is fixed by the bearing outer ring pressure plate; the mounting surface of the bearing flange and the mounting surface of the support are connected by bolts.

[0026] In one embodiment, the timing pulley is fixed to the drive shaft by a flat key, and the spacer is in close contact with the side of the timing pulley to limit axial displacement.

[0027] In one embodiment, the first oil baffle and the second oil baffle are located on both sides of the bearing and are pressed together by washers to form a sealing structure.

[0028] In one embodiment, the brass grease fitting is mounted on the side of the bearing flange for injecting lubricant into the bearing.

[0029] On the other hand, this utility model also provides an assembly structure for a lifting device for a stacker crane, including the above-mentioned lifting device and a dust cover;

[0030] The support is fixed to the lower crossbeam of the stacker crane;

[0031] The lifting assembly is connected to the support via a bearing flange and is capable of rotating about the drive shaft axis.

[0032] In one embodiment, the dust cover covers the exterior of the lifting assembly.

[0033] In one embodiment, the dust cover is detachably mounted on the support and covers the lifting assembly to provide dust protection and safety shielding.

[0034] In one embodiment, the mounting surface of the support and the locking disc are connected by bolts, and the mounting position of the locking disc corresponds to the notch of the support to facilitate disassembly and maintenance.

[0035] The beneficial effects of this utility model are as follows:

[0036] This utility model has a compact structure and replaces the traditional mounted bearing with a bearing flange: the inner hole of the bearing flange fits with the outer ring of the bearing, and is fixed by the bearing outer ring pressure plate, which can avoid shaft breakage and wear; at the same time, the notch at the upper end of the support is adapted to the contour of the locking plate, eliminating the interference fit problem during disassembly and shortening maintenance time.

[0037] This utility model also has the following advantages:

[0038] (1) The first and second oil retaining rings of this utility model are arranged on both sides of the bearing and are pressed together with the gasket to form a dynamic seal, which prevents oil leakage and blocks external dust; the brass oil nozzle is directly configured on the flange, which simplifies the lubrication operation and extends the bearing life.

[0039] (2) The synchronous pulley of this utility model is fixed to the drive shaft by a flat key, the spacer limits the axial displacement, and the shaft end pressure plate strengthens the shaft end to ensure transmission stability.

[0040] (3) The dust cover of this utility model can be detachably configured on the support and cover the lifting assembly to achieve dust prevention and safety shielding, and reduce the failure rate. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the lifting assembly of this utility model.

[0042] Figure 2 for Figure 1 A schematic diagram of the structure under explosive conditions.

[0043] Figure 3 This is a schematic diagram of the support structure of this utility model.

[0044] Figure 4This is a schematic diagram of the assembly of the lifting component and the support of this utility model.

[0045] Among them: 100, lifting assembly; 200, support; 300, dust cover;

[0046] 1. Lifting geared motor; 2. Locking disc; 3. Drive shaft; 4. Synchronous pulley; 5. Flat key; 6. Spacer; 7. Oil baffle; 8. Bearing; 9. Bearing flange; 10. Oil baffle; 11. Washer; 12. Bearing outer ring pressure plate; 13. Shaft end pressure plate; 14. Brass grease nipple. Detailed Implementation

[0047] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0048] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0050] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0051] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0052] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0053] like Figures 1-3The accompanying drawing shows a structural schematic diagram of a lifting device for a stacker crane according to an embodiment of the present invention; for ease of description, the drawing only shows the structure related to the embodiment of the present invention.

[0054] In this embodiment, a lifting device for a stacker crane is provided, including a lifting assembly 100;

[0055] Furthermore, the lifting assembly 100 includes a lifting reduction motor 1, a locking disc 2, a drive shaft 3, and transmission components;

[0056] The output end of the lifting gear motor 1 is fixedly connected to the drive shaft 3 through the locking plate 2. The locking plate 2 is fastened with bolts to ensure the reliability of power transmission.

[0057] Among them, the following components are assembled sequentially along the axial direction on drive shaft 3:

[0058] Synchronous pulley 4: is fixed to drive shaft 3 via flat key 5 to achieve power transmission;

[0059] Spacer 6: It fits tightly against the right end face of the timing pulley 4, restricting its axial displacement;

[0060] First oil baffle ring 7: It is set tightly against the spacer 6 to form a sealing structure with subsequent components;

[0061] Bearing 8: Installed close to the first oil retainer ring 7, with the outer ring of bearing 8 fitting into the inner hole of bearing flange 9;

[0062] Second oil retainer ring 10: Located on the right side of bearing 8, symmetrically distributed with first oil retainer ring 7;

[0063] Washer 11: Presses down the second oil retainer ring 10, and together with the bearing outer ring pressure plate 12, fixes the bearing 8.

[0064] In this embodiment, the right end of the drive shaft 3 is fixed by the shaft end pressure plate 13 to prevent the shaft end from loosening.

[0065] In this embodiment, a brass grease nipple 14 is installed on the side of the bearing flange 9 for injecting lubricant into the bearing 8 to extend its service life.

[0066] Please continue reading. Figure 3 In this embodiment, the upper end of the support 200 is provided with a notch, the shape of which matches the contour of the locking disc 2 to avoid suction caused by interference fit during installation. The mounting surface of the support 200 is connected to the bearing flange 9 by bolts, and the outer ring of the bearing 8 is fixed on the other side of the bearing flange 9 by the bearing outer ring pressure plate 12.

[0067] Please see Figure 4The image shows an assembly structure of a lifting device for a stacker crane according to an embodiment of the present invention, including the aforementioned lifting device and a dust cover 300.

[0068] Furthermore, the dust cover 300 is detachably covered above the lifting assembly 100 and is fixed to the support 200 by bolts;

[0069] Furthermore, the dust cover 300 is made of lightweight materials, which not only provides dust protection but also safety shielding, while being easy to disassemble for internal maintenance.

[0070] Specifically, in practical work, the assembly structure of this utility model satisfies the following:

[0071] The lifting assembly 100 is connected to the support 200 via the bearing flange 9, and the support 200 is fixed to the lower crossbeam of the stacker crane; the drive shaft 3 can rotate around its axis, driving the synchronous pulley 4 to achieve power transmission;

[0072] The notch design of the bearing flange 9 and the support 200 works together to ensure that the locking disc 2 does not need to be forcibly separated during disassembly, significantly shortening maintenance time;

[0073] The first oil retainer ring 7 and the second oil retainer ring 10 are located on both sides of the bearing 8, and are pressed together by the washer 11 to form a dynamic sealing structure, which effectively prevents lubricant leakage and blocks external dust.

[0074] The brass grease nipple 14 is directly mounted on the bearing flange 9, simplifying the lubrication process.

[0075] This utility model has a reasonable structure. By replacing the traditional mounted bearing with a bearing flange 9, and combining it with a notched support 200 and a detachable dust cover 300, it solves the problems of easy wear, difficult maintenance and high cost in the traditional structure. At the same time, the components of this utility model fit together tightly, and the transmission stability is significantly improved. It is suitable for high-frequency and high-load stacker crane operation scenarios.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A lifting device for a stacker crane, characterized in that, include: Lifting assembly (100) and support (200); The lifting assembly (100) includes a lifting reduction motor (1); The lifting reduction motor (1) is connected to the drive shaft (3) via a locking disc (2); The drive shaft (3) is sequentially arranged along the axial direction with a synchronous pulley (4), a flat key (5), a spacer (6), a first oil baffle (7), a bearing (8), a second oil baffle (10), and a washer (11); The synchronous pulley (4) is located on the opposite side of the locking disc (2) relative to the lifting reduction motor (1); The spacer (6) is disposed on the drive shaft (3) and closely attached to the side of the timing pulley (4); The first oil baffle (7) is disposed on the drive shaft (3) and closely abuts the spacer (6); The bearing (8) is mounted on the drive shaft (3) and is in close contact with the first oil retainer ring (7); The other side of the bearing (8) is connected to the bearing flange (9), and the second oil retainer (10) and the washer (11) are set close to the bearing (8); The other side of the bearing flange (9) is connected to the bearing outer ring pressure plate (12); The drive shaft (3) is fixed with a shaft end pressure plate (13); The bearing flange (9) is also equipped with a brass grease nipple (14).

2. The lifting device for a stacker crane according to claim 1, characterized in that, The upper end of the support (200) is provided with a notch, the shape of which matches the contour of the locking disc (2) to avoid the locking disc (2) from being sucked together due to interference fit between the mounting surface of the support (200).

3. The lifting device for a stacker crane according to claim 1, characterized in that, The inner hole of the bearing flange (9) mates with the outer ring of the bearing (8) and is fixed by the bearing outer ring pressure plate (12); the mounting surface of the bearing flange (9) is connected to the mounting surface of the support (200) by bolts.

4. The lifting device for a stacker crane according to claim 1, characterized in that, The synchronous pulley (4) is fixed to the drive shaft (3) by a flat key (5), and the spacer (6) is in close contact with the side of the synchronous pulley (4) to limit axial displacement.

5. The lifting device for a stacker crane according to claim 1, characterized in that, The first oil baffle (7) and the second oil baffle (10) are located on both sides of the bearing (8) and are pressed together by the washer (11) to form a sealing structure.

6. The lifting device for a stacker crane according to claim 1, characterized in that, The brass grease nipple (14) is installed on the side of the bearing flange (9) and is used to inject lubricant into the bearing (8).

7. An assembly structure for a lifting device of a stacker crane, characterized in that, Includes the lifting device as described in any one of claims 1-6, and a dust cover (300); Among them, the support (200) is fixed to the lower crossbeam of the stacker crane; The lifting assembly (100) is connected to the support (200) via the bearing flange (9) and is able to rotate about the axis of the drive shaft (3).

8. The assembly structure for the lifting device of a stacker crane according to claim 7, characterized in that, The dust cover (300) covers the outside of the lifting assembly (100).

9. The assembly structure for the lifting device of a stacker crane according to claim 8, characterized in that, The dust cover (300) is detachably mounted on the support (200) and covers the lifting assembly (100) to provide dust protection and safety shielding.

10. The assembly structure for the lifting device of a stacker crane according to claim 7, characterized in that, The mounting surfaces of the support (200) and the locking disc (2) are connected by bolts, and the mounting position of the locking disc (2) corresponds to the notch of the support (200) to facilitate disassembly and maintenance.

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