Steel wire rope tensioning device for a stacker lifting drum

Abstract

The application relates to the technical field of storage equipment, and discloses a steel wire rope pressing device for a lifting roller of a stacking machine, which comprises a main rod, a side frame, a roller, and a spring. The main rod is fixedly installed on the stacking machine and is parallel to the axis of the lifting roller in the axial direction. The side frame is provided with two groups and is symmetrically installed at the left and right ends of the main rod. A connecting rod is hingedly connected to the side frame. A connecting groove is formed in the roller, and the roller is rotatably installed at the end of the connecting rod through the connecting groove. One end of the spring is fixedly connected to the side frame, and the other end is fixedly connected to the connecting rod. Under the action of the spring, the roller can always press the steel wire rope at the lifting roller. The scheme provided by the application can limit the steel wire rope in the groove of the lifting roller, greatly reduces the risk of the steel wire rope coming off, and guarantees the safety and stability of the operation of the stacking machine.

Description

Technical Field

[0001] This application relates to the field of warehousing equipment technology, and specifically to a wire rope clamping device for a stacker crane lifting roller. Background Technology

[0002] In automated storage and retrieval systems (AS / RS), stacker cranes are the core storage and retrieval equipment, using wire ropes and lifting drive components to achieve vertical lifting of goods. However, existing stacker crane lifting systems suffer from the problem of wire ropes easily slipping off the lifting drums. The lifting drive component typically consists of three parts: a motor, a reducer, and lifting drums. Specifically, the motor is connected to the reducer, and a lifting drum is installed on each side of the reducer along the transverse direction, with the two lifting drums symmetrically arranged, forming a layout with the motor and reducer in the middle and the lifting drums on both sides. Furthermore, the wire rope is driven by the lifting drums. To prevent the wire rope from slipping off the lifting drum, evenly spaced annular grooves are provided on the lifting drum to restrict the axial displacement of the wire rope along the lifting drum.

[0003] However, during the operation of the stacker crane, the wire rope at the lifting drum may slip due to interference from factors such as vibration or load impact. Once the wire rope comes off, it will not only cause the stacker crane to malfunction and affect warehousing operations, but may also cause equipment failure or even safety accidents.

[0004] Currently, the most common anti-slip method involves installing limit rods on both sides of the lifting drum, perpendicular to the drum's axis. When the wire rope slips to the edge of the drum, the limit rods forcefully restrain it, preventing slippage. While this method alleviates the slippage problem, both the wire rope and the limit rods are made of rigid materials, and the friction between them is relatively high due to sliding friction. This can easily wear down the wire rope, posing a safety hazard. Utility Model Content

[0005] This application provides a wire rope clamping device for a stacker crane lifting drum, which aims to solve the problem of the wire rope slipping off the lifting drum.

[0006] To achieve the above objectives, this application employs the following technical solution:

[0007] A wire rope clamping device for a stacker crane lifting roller includes:

[0008] The main rod is fixedly installed on the stacker crane, and its axial direction is parallel to the axial direction of the lifting roller.

[0009] The side frame has two sets, which are symmetrically installed at the left and right ends of the main rod, and the side frame is hinged with a connecting rod;

[0010] A roller, which has a connecting groove and is rotatably mounted on the end of a connecting rod through the connecting groove;

[0011] A spring, one end of which is fixed to the side frame and the other end of which is fixed to the connecting rod, allows the roller to always press against the wire rope at the lifting drum under the action of the spring.

[0012] Optionally, in some embodiments, a fixing ring is fixedly connected to the main rod. The fixing ring has a movable opening, and locking plates are symmetrically arranged at the movable opening. A bolt is passed through the two locking plates and threadedly connected to a nut. The main rod can be fixedly installed on the stacker crane through the fixing ring.

[0013] Optionally, in some embodiments, two ear plates are symmetrically arranged on each set of side frames, and a connecting rod is installed at each ear plate via a hinge shaft.

[0014] Optionally, in some embodiments, the connecting rod has an L-shaped structure.

[0015] Optionally, in some embodiments, the roller is made of wear-resistant rubber material wrapped around a metal hub, and two connecting grooves corresponding to the connecting rods are opened on the roller, with the ends of the connecting rods rotatably connected to the connecting grooves.

[0016] Optionally, in some embodiments, a first connecting buckle is provided on the side frame, and a second connecting buckle is provided on the corresponding connecting rod. One end of the spring is fixed to the first connecting buckle, and the other end is fixed to the second connecting buckle, and the spring is always in a stretched state.

[0017] The beneficial effects of this application are:

[0018] This application uses a spring to continuously press the steel wire rope against the roller, which confines the steel wire rope within the groove of the lifting drum, greatly reducing the risk of the steel wire rope coming off and ensuring the safety and stability of the stacker crane operation. By wrapping the outer layer of the roller with a wear-resistant rubber layer, the pressure can be evenly distributed during the pressing process of the steel wire rope, avoiding local stress concentration. Furthermore, the rolling friction between the roller and the steel wire rope can effectively reduce wear on the steel wire rope and extend its service life. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a partial structural diagram of this application.

[0022] Labels for each item in the figure:

[0023] 1-Fixing ring, 11-Modible opening, 12-Locking plate, 2-Main rod, 3-Side frame, 31-Ear plate, 32-Hinge shaft, 33-First connecting buckle, 4-Connecting rod, 41-Second connecting buckle, 5-Roller, 51-Connecting groove, 6-Spring. Detailed Implementation

[0024] The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application. Similarly, the following examples are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "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 are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0026] 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 utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly 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, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" 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.

[0029] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. 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.

[0030] This application proposes improvements and innovations, and presents the following embodiments.

[0031] See Figure 1 , Figure 2 A wire rope clamping device for a stacker crane lifting roller, comprising:

[0032] Main rod 2 is made of steel pipe and is fixedly installed at the lifting drive assembly of the stacker crane. The lifting drive assembly consists of three parts: motor, reducer and lifting drum. The specific installation position can be adjusted according to the actual situation. Generally speaking, main rod 2 is fixedly installed at the reducer. During installation, the axis of main rod 2 needs to be parallel to the axis of lifting drum.

[0033] Side frame 3 is made of steel plate and has a rectangular structure. There are two sets of side frames, which are symmetrically welded to the left and right ends of the main rod 2. Ear plates 31 are also welded on the side frame 3. Each ear plate 31 is hinged to a connecting rod 4 through a hinge shaft.

[0034] The roller 5 is made of wear-resistant rubber material wrapped around a metal hub, forming a structure that is flexible on the outside and rigid on the inside. A connecting groove 51 is opened on the metal hub, and the roller 5 is rotatably mounted on the end of the connecting rod 4 through the connecting groove 51.

[0035] Spring 6 has a first connecting buckle 33 on the side frame 3 and a second connecting buckle 41 on the corresponding connecting rod 4. One end of spring 6 is fixed to the first connecting buckle 33, and the other end is fixed to the second connecting buckle 41. Spring 6 is a tension spring and is always in a stretched state. Under the action of spring 6, the roller 5 can always press the wire rope at the lifting drum. It should be noted that the structure of the connecting buckle is existing technology and will not be described in detail here. Moreover, there are various ways to install spring 6, which can be updated and adjusted according to needs, as long as it can achieve the purpose of pressing the roller 5 to press the wire rope.

[0036] Furthermore, the number of springs 6 is positively correlated with the clamping force; the more springs 6 there are, the greater the clamping force. The number of springs 6 can be increased or decreased according to requirements. In this embodiment, two springs 6 are provided on each side frame 3. In addition, to ensure the stability of the roller 5, two ear plates 31 are symmetrically arranged on each side frame 3. Connecting rods 4 are mounted on each ear plate 31 via hinge shafts 32. Two connecting grooves 51 corresponding to the connecting rods 4 are opened on the roller 5. The ends of the two connecting rods 4 are rotatably connected to the left and right sides of the roller 5, thereby ensuring the stability of the roller 5. It should be noted that the diameter of the connection between the connecting rod 4 and the roller 5 needs to be smaller than the outer diameter of the roller 5 to avoid direct contact between the connection and the wire rope, thus preventing wear on the wire rope. Furthermore, the connecting rod can be designed in an L-shape. This structure, compared to a straight structure, allows for more movement space for the springs 6, preventing contact between the springs 6 and the lifting drum.

[0037] In some embodiments, the main rod 2 is fixed by a clamp. Specifically, a fixing ring 1 is welded at the middle position of the main rod 2. The fixing ring 1 has a movable opening 11, which can be pried open to both sides by external force, thus facilitating the fitting of the fixing ring 1 onto the reducer. Locking plates 12 are symmetrically arranged on both sides of the movable opening 11. Bolts are threaded through the two locking plates 12 and connected to nuts. After the fixing ring 1 is fitted onto the reducer, tightening the nuts secures the fixing ring 1 to the reducer, thereby fixing the main rod 2. The shape of the fixing ring 1 needs to match the shape and size of the fixing position; the specific shape and size can be set according to actual needs.

[0038] Specific work process:

[0039] The device is fixed in a suitable position by fixing ring 1, so that the left and right rollers 5 press the wire ropes on the left and right lifting drums respectively. Under the action of elasticity, the rollers 5 can restrict the wire ropes in the groove of the lifting drum, which greatly reduces the risk of the wire ropes coming off. In addition, if the wire ropes jump slightly due to external load impact or other factors, the springs 6 can buffer and absorb the impact, preventing the wire ropes from sliding along the axial direction of the lifting drum.

[0040] The above are merely optional embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this utility model.

Claims

1. A wire rope clamping device for a stacker crane lifting roller, characterized in that, include: The main rod is fixedly installed on the stacker crane, and its axial direction is parallel to the axial direction of the lifting roller. The side frame has two sets, which are symmetrically installed at the left and right ends of the main rod, and the side frame is hinged with a connecting rod; A roller, which has a connecting groove and is rotatably mounted on the end of a connecting rod through the connecting groove; A spring, one end of which is fixed to the side frame and the other end of which is fixed to the connecting rod, allows the roller to always press against the wire rope at the lifting drum under the action of the spring.

2. The wire rope clamping device according to claim 1, characterized in that, A fixing ring is fixedly connected to the main rod. The fixing ring has a movable opening, and locking plates are symmetrically arranged at the movable opening. Bolts are threaded through the two locking plates and connected to nuts. The main rod can be fixedly installed on the stacker crane through the fixing ring.

3. The wire rope clamping device according to claim 1, characterized in that, Each set of side frames has two ear plates symmetrically arranged, and each ear plate is connected to a connecting rod via a hinge shaft.

4. The wire rope clamping device according to claim 3, characterized in that, The connecting rod has an L-shaped structure.

5. The wire rope clamping device according to claim 4, characterized in that, The roller is made of wear-resistant rubber material wrapped around a metal hub. Two connecting grooves for corresponding connecting rods are opened on the roller, and the ends of the connecting rods are rotatably connected to the connecting grooves.

6. The wire rope clamping device according to claim 1, characterized in that, The side frame is provided with a first connecting buckle, and the corresponding connecting rod is provided with a second connecting buckle. One end of the spring is fixed to the first connecting buckle, and the other end is fixed to the second connecting buckle, and the spring is always in a stretched state.

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