Rope pressing device for electric hoist

Abstract

The utility model relates to the technical field of electric hoists, and discloses a rope pressing device for an electric hoist, which comprises a motor component, a steel rope is wound on the motor component, and a pulley component matched with the steel rope for use is arranged on one side of the motor component. One side of the motor assembly is provided with a pressing assembly which is used for pressing the whole steel rope to prevent loosening when the steel rope is released or wound; by arranging the pressing assembly, the adjusting assembly and the limiting assembly, when the steel rope is used, the steel rope penetrates through the limiting assembly, the pressing assembly is closed, and the position of the adjusting assembly is moved, so that when the steel rope is released or wound, the steel rope is limited by the limiting assembly, movement of the steel rope is limited, winding or releasing is facilitated, and the adjusting assembly can be pressed on one side of the steel rope; and in addition, excessive friction cannot be generated when the steel rope is released or wound, abrasion of the steel rope and the pressing device is reduced, and the service life of the electric hoist is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to a wire rope pressing device for an electric hoist. Background Art

[0002] An electric hoist is a special lifting device installed on overhead cranes and gantry cranes. The electric hoist has the characteristics of small size, light self-weight, simple operation, and convenient use. It is used in industrial and mining enterprises, warehouses, docks and other places. Since the electric hoist has a wide range of applications, it is also necessary to optimize the structure of the electric hoist.

[0003] For example, in the Chinese utility model patent with the publication number CN217516583U, a wire rope pressing device for an electric hoist with an ultra-long lifting stroke is disclosed. In the above-mentioned prior art, although the wire rope wound around the drum of the electric hoist is pressed by a wire rope pressing roller, the structure is simple and the manufacturing cost is low. However, when the wire rope is wound or released, pressing the wire rope will cause wear between the wire rope and the pressing device. The tighter it is pressed, the more serious the wear will be. After using for a period of time, it will be necessary to replace the wire rope and the pressing device. Otherwise, the fracture of the wire rope or the damage of the pressing device will cause serious consequences. Such frequent replacement will reduce the service life of the electric hoist. Therefore, it is necessary to design a wire rope pressing device for an electric hoist that will not cause excessive wear to the wire rope. Summary of the Utility Model

[0004] To solve the technical problem that the pressing device will cause excessive wear to the wire rope when pressing, the utility model provides a wire rope pressing device for an electric hoist.

[0005] The utility model is realized by the following technical solutions: A wire rope pressing device for an electric hoist includes a motor assembly, a steel wire rope is wound around the motor assembly, a pulley assembly for cooperating with the steel wire rope is arranged on one side of the motor assembly, a pressing assembly for pressing the whole steel wire rope to prevent loosening when the steel wire rope is released or wound is arranged on one side of the motor assembly, an adjusting assembly for adjusting the pressing position of the steel wire rope is arranged on the pressing assembly, and a limiting assembly for limiting the position of the steel wire rope when the steel wire rope is released or wound is arranged on one side of the pressing assembly.

[0006] Through the above technical solutions, when the limiting assembly is sleeved on the steel wire rope and then the pressing assembly is closed, the adjusting assembly will be in contact with and press the steel wire rope.

[0007] As a further improvement of the above solution, the pressing assembly includes a pressing plate arranged at the opening of the motor assembly and a rotating shaft installed on one side of the pressing plate. The pressing plate is rotationally matched with the motor assembly through the rotating shaft. The pressing plate is arranged in an arc shape, and an adjusting opening penetrating the pressing plate is arranged on one side of the pressing plate.

[0008] Through the above technical solution, when the pressing plate is closed, the pressing column can be attached to and pressed against the surface of the steel rope.

[0009] As a further improvement of the above solution, first sliding grooves are opened on both sides of the inner wall of the adjustment opening. The adjustment component includes first sliding blocks that are slidably engaged inside each first sliding groove and a pressing column that is rotatably installed between the two first sliding blocks.

[0010] Through the above technical solution, the pressing column is attached to and pressed against the steel rope. In this way, when the steel rope is released or wound up, the pressing column will rotate and press.

[0011] As a further improvement of the above solution, a second sliding groove is opened on one side of the inner wall of the adjustment opening. The limiting component includes a second sliding block that is slidably installed inside the second sliding groove and a limiting block that is fixedly installed on one side of the second sliding block. A rope passing hole for the steel rope to pass through is opened on one side of the limiting block.

[0012] Through the above technical solution, the steel rope passes through the limiting block, so that it will be limited when the steel rope is released or wound up.

[0013] As a further improvement of the above solution, two third sliding grooves are opened on one side of the pressing plate. One of the third sliding grooves communicates with the first sliding groove, and the other third sliding groove communicates with the second sliding groove. Threaded columns are provided inside both of the third sliding grooves. One of the threaded columns threadedly penetrates the first sliding block, and the other threaded column threadedly penetrates the second sliding block. Rotating blocks are fixedly installed at the other ends of both of the threaded columns.

[0014] Through the above technical solution, by rotating the threaded columns, the pressing column and the limiting block with adjusted positions can be fixed.

[0015] As a further improvement of the above solution, a fixing plate with a limiting groove is fixedly installed on one side of the motor component. A limiting plate is slidably installed inside the limiting groove.

[0016] Through the above technical solution, the limiting plate and the fixing plate can be used to press and fix the pressing plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The utility model sets a pressing component, an adjusting component and a limiting component. When using a steel rope, the steel rope passes through the limiting component, and the pressing component is closed to move the position of the adjusting component. In this way, when the steel rope is released or wound up, it will be restricted by the limiting component, making the movement of the steel rope restricted, which is convenient for winding or releasing. The adjusting component presses on one side of the steel rope to press the steel rope tightly, and there will be no excessive friction when the steel rope is released or wound up, reducing the wear of the steel rope and the pressing device, and prolonging the service life of the electric hoist. Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is a structure schematic diagram of the utility model with an adjusting component;

[0021] Figure 3 It is a structure schematic diagram of the utility model with a limiting component.

[0022] Main Symbol Description:

[0023] 1. Motor assembly; 2. Steel rope; 3. Pulley assembly; 401. Pressing plate; 402. Rotating shaft; 501. First sliding block; 502. Pressing column; 601. Second sliding block; 602. Limiting block; 7. Threaded column; 8. Fixed plate; 9. Limiting plate. Specific Embodiment

[0024] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0025] Please combine Figures 1 - 3 , A rope pressing device for an electric hoist in this embodiment includes a motor assembly 1, a steel rope 2 is wound around the motor assembly 1, a pulley assembly 3 for cooperating with the steel rope 2 is arranged on one side of the motor assembly 1, a pressing component for pressing the entire steel rope 2 to prevent loosening when the steel rope 2 is released or wound up is arranged on one side of the motor assembly 1, an adjusting component for adjusting the pressing position of the steel rope 2 is arranged on the pressing component, and a limiting component for restricting the position of the steel rope 2 when the steel rope 2 is released or wound up is arranged on one side of the pressing component.

[0026] Combine Figures 1 - 3, the pressing component includes a pressing plate 401 arranged at the opening of the motor component 1 and a rotating shaft 402 installed on one side of the pressing plate 401. The pressing plate 401 is rotationally matched with the motor component 1 through the rotating shaft 402. The pressing plate 401 is arranged in an arc shape. An adjustment opening penetrating the pressing plate 401 is formed on one side of the pressing plate 401. When the pressing plate 401 is closed, the pressing column 502 can be attached to and press the surface of the steel rope 2.

[0027] Combined with Figure 2 and Figure 3 , on both sides of the inner wall of the adjustment opening, first sliding grooves are formed. The adjustment component includes first sliding blocks 501 that are slidably matched inside each first sliding groove and a pressing column 502 rotatably installed between the two first sliding blocks 501. The pressing column 502 is attached to and presses the steel rope 2. In this way, when the steel rope 2 is released or wound up, the pressing column 502 will rotate and press.

[0028] Combined with Figure 2 and Figure 3 , a second sliding groove is formed on one side of the inner wall of the adjustment opening. The limiting component includes a second sliding block 601 slidably installed inside the second sliding groove and a limiting block 602 fixedly installed on one side of the second sliding block 601. A rope-passing hole for the steel rope 2 to pass through is formed on one side of the limiting block 602.

[0029] Combined with Figure 2 and Figure 3 , two third sliding grooves are formed on one side of the pressing plate 401. One of the third sliding grooves is communicated with the first sliding groove, and the other third sliding groove is communicated with the second sliding groove. Threaded columns 7 are arranged inside both third sliding grooves. One threaded column 7 threadedly penetrates the first sliding block 501, and the other threaded column 7 threadedly penetrates the second sliding block 601. Rotating blocks are fixedly installed at the other ends of the two threaded columns 7. By rotating the threaded columns 7, the pressing column 502 and the limiting block 602 with adjusted positions can be fixed.

[0030] Combined with Figure 1 , a fixing plate 8 with a limiting groove is fixedly installed on one side of the motor component 1. A limiting plate 9 is slidably installed inside the limiting groove.

[0031] In the embodiment of the present application, the implementation principle of a wire pressing device for an electric hoist is as follows: Pass the steel wire rope 2 through the wire passing hole of the limit block 602, rotate the pressing plate 401 to close and fix it with the limiting plate 9, rotate the threaded column 7 to slide the first sliding block 501 and the second sliding block 601, adjust the positions of the pressing column 502 and the limit block 602, and then rotate the threaded column 7 to fix it after the adjustment. In this way, when the steel wire rope 2 is released or wound, its position will be restricted by the limit block 602, making the winding orderly and not chaotic. The pressing column 502 will closely press against the remaining steel wire rope 2 when the steel wire rope 2 is released or wound. And since the pressing column 502 is a cylinder, when the steel wire rope 2 rotates due to the rotation of the motor assembly 1, the pressing column 502 will also rotate while pressing, which can reduce the wear between the steel wire rope 2 and the pressing column 502 and extend the service life of the steel wire rope 2.

[0032] The above-mentioned implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A wire pressing device for an electric hoist, comprising a motor assembly (1) around which a steel wire rope (2) is wound, and a pulley assembly (3) for cooperating with the steel wire rope (2) is arranged on one side of the motor assembly (1), characterized in that, On one side of the motor assembly (1), there is a pressing assembly for pressing the entire steel rope (2) to prevent loosening when releasing or winding the steel rope (2). An adjusting assembly for adjusting the pressing position of the steel rope (2) is provided on the pressing assembly. On one side of the pressing assembly, there is a limiting assembly for restricting the position of the steel rope (2) when the steel rope (2) is released or wound.

2. The wire pressing device for an electric hoist according to claim 1, characterized in that, The pressing assembly includes a pressing plate (401) provided at the opening of the motor assembly (1) and a rotating shaft (402) installed on one side of the pressing plate (401). The pressing plate (401) is rotatably engaged with the motor assembly (1) through the rotating shaft (402). The pressing plate (401) is arranged in an arc shape. An adjusting opening penetrating the pressing plate (401) is provided on one side of the pressing plate (401).

3. The wire pressing device for an electric hoist according to claim 2, characterized in that, On both sides of the inner wall of the adjusting opening, first sliding grooves are provided. The adjusting assembly includes first sliding blocks (501) slidably engaged inside each first sliding groove and a pressing column (502) rotatably installed between the two first sliding blocks (501).

4. The rope pressing device for an electric hoist according to claim 3, wherein, On one side of the inner wall of the adjusting opening, a second sliding groove is provided. The limiting assembly includes a second sliding block (601) slidably installed inside the second sliding groove and a limiting block (602) fixedly installed on one side of the second sliding block (601). A rope-passing hole for the steel rope (2) to pass through is provided on one side of the limiting block (602).

5. The wire pressing device for an electric hoist according to claim 4, characterized in that, On one side of the pressing plate (401), two third sliding grooves are provided. One of the third sliding grooves is communicated with the first sliding groove, and the other third sliding groove is communicated with the second sliding groove. Threaded columns (7) are provided inside both of the third sliding grooves. One of the threaded columns (7) threadedly penetrates the first sliding block (501), and the other threaded column (7) threadedly penetrates the second sliding block (601). Rotating blocks are fixedly installed at the other ends of both of the threaded columns (7).

6. The wire rope pressing device for an electric hoist according to claim 1, wherein, On one side of the motor assembly (1), a fixing plate (8) with a limiting groove is fixedly installed. A limiting plate (9) is slidably installed inside the limiting groove.

Images