Thread adjustable type hot rolling pulley

By setting limiting and auxiliary components on the pulley body, the problems of pulley position stability and rope adaptability are solved, realizing the stability and applicability of the pulley in diverse application scenarios.

CN223839702UActive Publication Date: 2026-01-27CHANGZHOU LINGONG LIFTING EQUIP CO LTD
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Patent Information

Application Number
CN202520474243.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-27
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

The threaded adjustable hot-rolled pulley has insufficient stability in position after adjustment, and is prone to positional deviation due to vibration or external force. In addition, it has poor adaptability to ropes of different sizes, which limits its application range.

Method used

By setting limiting and auxiliary components on the pulley body, including ratchet, limiting block, limiting spring, threaded mounting shaft and auxiliary plate, the pulley position can be reliably fixed and the rope size can be adaptively adjusted, thereby increasing friction to prevent slippage.

Benefits of technology

It ensures the stability and adaptability of the pulley's position after adjustment, expands its application range, and prevents accidental displacement and slippage caused by vibration or external force.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a thread adjustable type hot rolling pulley which comprises a pulley body, an adjusting assembly is arranged on the pulley body, first limiting assemblies are arranged on the two sides of the pulley body, an auxiliary assembly is arranged on the inner wall of the pulley body, and a second limiting assembly is arranged at one end of the auxiliary assembly. Axial movement of the threaded mounting shaft can be reliably limited, accidental displacement of the threaded mounting shaft due to vibration or other external force after adjustment is prevented, so that the pulley is always kept at a required working position, and meanwhile, the auxiliary component arranged on the pulley body not only can adapt to ropes with different sizes, but also can enhance friction force, so that the service life of the pulley is prolonged. According to the sliding wheel, the sliding phenomenon is effectively prevented, the application range of the sliding wheel is expanded, the applicability of the sliding wheel in diversified application scenes can be greatly enhanced according to actual working condition requirements through the adjusting assembly arranged on the sliding wheel body, and meanwhile one-way locking can be achieved under the action of ratchet wheel teeth through the second limiting assembly arranged on the auxiliary assembly.
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Description

Technical Field

[0001] This utility model relates to the field of hot-rolled pulley technology, and more specifically, to a threaded adjustable hot-rolled pulley. Background Technology

[0002] Thread-adjustable hot-rolled pulleys are mechanical transmission components that combine thread adjustment function with hot-rolling forming process. They are mainly used in scenarios where flexible adjustment of pulley position or tension is required. These pulleys are usually made of hot-rolled steel to ensure high strength and wear resistance, making them suitable for heavy-duty applications.

[0003] However, the pulley's position stability after adjustment is insufficient, and it is easy for the pulley's position to shift due to vibration or other external forces, affecting the transmission effect. At the same time, the pulley has poor adaptability to ropes of different sizes in actual use, and cannot effectively meet the usage requirements of various rope diameters, thus limiting its application range.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a threaded adjustable hot-rolled pulley to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A threaded adjustable hot-rolled pulley includes a pulley body with an adjustment component. Limiting components one are located on both sides of the pulley body, and an auxiliary component is located on the inner wall of the pulley body. A limiting component two is located at one end of the auxiliary component. The limiting component two includes a ratchet fixedly mounted at one end of the auxiliary component, a limiting block engaging with the teeth of the ratchet, a limiting spring fixed to one side of the limiting block, and a limiting cylinder fixed to one end of the limiting spring. The limiting cylinder and the limiting block are connected to the side of the pulley body via a rotating rod two. A limiting post contacts one side of the limiting block, and one end of the limiting post is connected to the side of the pulley body.

[0008] Furthermore, in order to better adjust the hot-rolled pulley, the adjustment component includes a threaded groove on the pulley body, a threaded mounting shaft connected to the inner wall of the threaded groove, and an adjustment groove at one end of the threaded mounting shaft.

[0009] Furthermore, in order to better restrict the adjusted hot-rolled pulley, the first restriction component includes connecting columns fixedly installed on both sides of the pulley body. One end of the connecting column passes through the first restriction plate and the second restriction plate. One side of the first restriction plate and the second restriction plate is in contact with the surface of the threaded mounting shaft. One side of the first restriction plate and the second restriction plate is provided with a mounting groove. The inner wall of the mounting groove is connected to a mounting block through a rotating rod. One side of the mounting block is provided with a spring-loaded telescopic rod.

[0010] Furthermore, in order to better adjust according to different rope sizes, the auxiliary components include multiple auxiliary cavities opened in the inner wall of the pulley body, multiple auxiliary plates installed on the inner walls of the multiple auxiliary cavities, and an adjusting screw connected to the upper thread of the auxiliary plates. One end of the adjusting screw is connected to the middle position of the ratchet, and both ends of the adjusting screw are connected to the pulley body through a bearing. An adjusting groove is opened at one end of the adjusting screw.

[0011] Furthermore, to better assist in adjustment, multiple spring-loaded telescopic rods are fixed to the side of the auxiliary plate, with one end of each spring-loaded telescopic rod fixedly connected to the inner wall of the pulley body.

[0012] Furthermore, to further improve slip resistance, an anti-slip pad is installed on one side of the auxiliary board, and the anti-slip pad is compatible with the auxiliary board.

[0013] Furthermore, multiple mounting plates are connected to the threaded mounting shaft via bearing 2.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) By setting the limiting component one on the pulley body, the axial movement of the threaded mounting shaft can be reliably limited, preventing it from being accidentally displaced due to vibration or other external forces after adjustment, thereby ensuring that the pulley always stays in the required working position. At the same time, the auxiliary component set on the pulley body can not only adapt to ropes of different sizes but also enhance friction, effectively preventing slippage and expanding the application range of the pulley.

[0016] (2) By setting the adjustment component on the pulley body, the pulley body can be precisely adjusted according to the actual working conditions, which greatly enhances the applicability of the pulley in diverse application scenarios. At the same time, the limiting component two set in the auxiliary component can achieve one-way locking under the action of ratchet teeth, effectively preventing the adjusting screw from retracting due to external force, and ensuring the positional stability of the pulley after adjustment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the main structure of a threaded adjustable hot-rolled pulley according to an embodiment of the present utility model;

[0019] Figure 2 This is a side view of a threaded adjustable hot-rolled pulley according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment component structure of a threaded adjustable hot-rolled pulley according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the limiting component and auxiliary component of a threaded adjustable hot-rolled pulley according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the auxiliary component and the limiting component two of a threaded adjustable hot-rolled pulley according to an embodiment of the present utility model.

[0023] In the picture:

[0024] 1. Pulley body; 2. Adjustment assembly; 201. Threaded mounting shaft; 202. Adjustment groove one; 3. Restriction assembly one; 301. Connecting column; 302. Restriction plate one; 303. Restriction plate two; 304. Mounting block; 305. Spring-loaded telescopic rod one; 4. Auxiliary assembly; 401. Auxiliary cavity; 402. Auxiliary plate; 403. Adjusting screw; 404. Adjustment groove two; 5. Restriction assembly two; 501. Ratchet; 502. Restriction block; 503. Restriction spring; 504. Restriction cylinder; 505. Restriction column; 6. Spring-loaded telescopic rod two; 7. Anti-slip pad; 8. Mounting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1:

[0027] like Figures 1-5 As shown, a threaded adjustable hot-rolled pulley according to an embodiment of the present utility model includes a pulley body 1, an adjustment component 2 on the pulley body 1, the adjustment component 2 including a threaded groove on the pulley body 1, a threaded mounting shaft 201 threadedly connected to the inner wall of the threaded groove, a plurality of mounting plates 8 connected to the threaded mounting shaft 201 via a bearing 2, the number of mounting plates 8 being two, used for mounting the hot-rolled pulley, an adjustment groove 202 being provided at one end of the threaded mounting shaft 201, the shape of the adjustment groove 202 being a straight line, a cross, an internal hexagon or other shapes, and the shape can be changed according to the actual situation;

[0028] Limiting components 3 are provided on both sides of the pulley body 1. The limiting components 3 include connecting posts 301 fixedly installed on both sides of the pulley body 1. One end of the connecting post 301 passes through the limiting plate 302 and the limiting plate 303. One side of the limiting plate 302 and the limiting plate 303 contacts the surface of the threaded mounting shaft 201. One side of the limiting plate 302 and the limiting plate 303 is provided with a mounting groove. The inner wall of the mounting groove is connected to the mounting block 304 through the rotating rod. One side of the mounting block 304 is provided with a spring-loaded telescopic rod 305.

[0029] Example 2:

[0030] like Figures 1-5 As shown, according to an embodiment of the present utility model, an adjustable hot-rolled pulley with a thread is provided on the inner wall of the pulley body 1. The auxiliary component 4 includes a plurality of auxiliary cavities 401 opened on the inner wall of the pulley body 1. The number of auxiliary cavities 401 is two and they are arranged symmetrically. A plurality of auxiliary plates 402 are installed on the inner wall of the plurality of auxiliary cavities 401. The number of auxiliary plates 402 is two, which are used to adapt to ropes of different sizes or to adjust the ropes. A plurality of spring-loaded telescopic rods 6 are fixed on the side of the auxiliary plate 402. The number of spring-loaded telescopic rods 6 on each auxiliary plate 402 is four. One end of the spring-loaded telescopic rods 6 is fixedly connected to the inner wall of the pulley body 1. An anti-slip pad 7 is installed on one side of the auxiliary plate 402.

[0031] The spring-loaded telescopic rod 2 6 and the spring-loaded telescopic rod 1 305 are composed of telescopic rod 1, telescopic rod 2 and their springs. One end of telescopic rod 1 is nested and connected to the inner wall of telescopic rod 2 through a sealing block or sealing gasket. The spring is fitted on the outside of telescopic rod 1 and telescopic rod 2.

[0032] The anti-slip mat 7 is compatible with the auxiliary plate 402. The auxiliary plate 402 is threaded with an adjusting screw 403. The two ends of the adjusting screw 403 are connected to the pulley body 1 through a bearing. One end of the adjusting screw 403 is provided with an adjusting groove 404. The shape of the adjusting groove 404 can be a straight line, a cross, an internal hexagon, or other shapes. The shape can be changed according to the actual situation.

[0033] One end of the auxiliary component 4 is provided with a limiting component 2 5. The limiting component 2 5 includes a ratchet 501 fixedly disposed at one end of the auxiliary component 4. One end of the adjusting screw 403 is connected to the middle position of the ratchet 501. A limiting block 502 is engaged at the teeth of the ratchet 501. A limiting spring 503 is fixed to one side of the limiting block 502. A limiting cylinder 504 is fixed to one end of the limiting spring 503. The limiting cylinder 504 and the limiting block 502 are connected to the side of the pulley body 1 through the rotating rod 2. A limiting post 505 contacts one side of the limiting block 502. One end of the limiting post 505 is connected to the side of the pulley body 1.

[0034] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0035] In summary, with the help of the above-mentioned technical solution of this utility model, when in use, the operator rotates the adjustment groove 202 on the threaded mounting shaft 201 with a tool, so that the threaded mounting shaft 201 moves axially along the threaded groove of the pulley body 1. This movement can adjust the effective working diameter or tension of the pulley body 1 to adapt to the needs of ropes or transmission of different sizes.

[0036] After the threaded mounting shaft 201 is moved into place, the staff presses the first limiting plate 302 and the second limiting plate 303. The spring force of the first telescopic rod 305 of the spring sleeve presses them tightly against their surfaces, forming a friction lock. At the same time, the mounting block 304 is connected to the first limiting plate 302 and the second limiting plate 303 through the first rotating rod, further restricting the accidental displacement of the threaded mounting shaft 201 and ensuring the stability of the adjusted position.

[0037] Then, an auxiliary plate 402 is installed in the auxiliary cavity 401 on the inner wall of the pulley body 1. The operator rotates the adjustment groove 404 on the adjusting screw 403 with a tool, so that the adjusting screw 403 drives the auxiliary plate 402 to move axially. When the auxiliary plate 402 moves, the spring sleeve telescopic rod 6 set on the auxiliary plate 402 provides elastic support, so that the auxiliary plate 402 and the anti-slip pad 7 adapt to the contact surface of the rope, enhance the friction and prevent slippage.

[0038] When the adjusting screw 403 drives the ratchet 501 to rotate, the teeth of the ratchet 501 mesh with the limiting block 502. The limiting spring 503 applies pressure to the limiting block 502 through the limiting cylinder 504, so that it always keeps close to the tooth surface of the ratchet 501, thus providing auxiliary restriction on the adjusting screw 403 and reducing the movement of the adjusting screw 403. At the same time, the limiting post 505 further blocks the displacement of the limiting block 502, forming a one-way lock to prevent the pulley from retracting due to external force.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A threaded adjustable hot-rolled pulley, characterized in that, The device includes a pulley body (1), an adjustment component (2) is provided on the pulley body (1), a first limiting component (3) is provided on both sides of the pulley body (1), an auxiliary component (4) is provided on the inner wall of the pulley body (1), a second limiting component (5) is provided at one end of the auxiliary component (4), the second limiting component (5) includes a ratchet (501) fixedly provided at one end of the auxiliary component (4), a limiting block (502) is engaged at the teeth of the ratchet (501), a limiting spring (503) is fixed on one side of the limiting block (502), a limiting cylinder (504) is fixed at one end of the limiting spring (503), the limiting cylinder (504) and the limiting block (502) are connected to the side of the pulley body (1) through a rotating rod, a limiting post (505) is in contact with one side of the limiting block (502), and one end of the limiting post (505) is connected to the side of the pulley body (1).

2. The threaded adjustable hot-rolled pulley according to claim 1, characterized in that, The adjustment component (2) includes a threaded groove on the pulley body (1), and a threaded mounting shaft (201) is threadedly connected to the inner wall of the threaded groove. One end of the threaded mounting shaft (201) is provided with an adjustment groove (202).

3. The threaded adjustable hot-rolled pulley according to claim 2, characterized in that, The first limiting component (3) includes connecting posts (301) fixedly installed on both sides of the pulley body (1). One end of the connecting post (301) passes through the first limiting plate (302) and the second limiting plate (303). One side of the first limiting plate (302) and the second limiting plate (303) is in contact with the surface of the threaded mounting shaft (201). Multiple mounting grooves are opened on one side of the first limiting plate (302) and the second limiting plate (303). The inner wall of the mounting groove is connected to the mounting block (304) through the rotating rod. One side of the mounting block (304) is provided with a spring-loaded telescopic rod (305).

4. A threaded adjustable hot-rolled pulley according to claim 3, characterized in that, The auxiliary component (4) includes multiple auxiliary cavities (401) opened on the inner wall of the pulley body (1). Multiple auxiliary plates (402) are installed on the inner walls of the multiple auxiliary cavities (401). An adjusting screw (403) is threaded onto the upper part of the auxiliary plate (402). One end of the adjusting screw (403) is connected to the middle position of the ratchet (501). Both ends of the adjusting screw (403) are connected to the pulley body (1) through a bearing. An adjusting groove (404) is opened at one end of the adjusting screw (403).

5. A threaded adjustable hot-rolled pulley according to claim 4, characterized in that, Multiple spring-loaded telescopic rods (6) are fixed to the side of the auxiliary plate (402), and one end of the spring-loaded telescopic rods (6) is fixedly connected to the inner wall of the pulley body (1).

6. A threaded adjustable hot-rolled pulley according to claim 5, characterized in that, An anti-slip pad (7) is installed on one side of the auxiliary plate (402), and the anti-slip pad (7) is adapted to the auxiliary plate (402).

7. A threaded adjustable hot-rolled pulley according to claim 6, characterized in that, Multiple mounting plates (8) are connected to the threaded mounting shaft (201) via bearing 2.