Steel wire rope rotation stress releasing structure
By designing a wire rope to release rotary stress structure, the combination of the wire locker and the rotating part is used to solve the winding problem caused by the accumulation of rotary stress in the wire rope, and the safe and stable lifting of the wire rope is achieved.
Patent Information
- Application Number
- CN202422482704.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-14
AI Technical Summary
In large-stroke lifting devices, the wire rope is wound and damaged due to the accumulation of rotational stress, especially in the moving pulley structure, the wire rope cannot release stress, resulting in the rotation of the hanging object and the damage to the machine.
A wire rope releasing rotary stress structure is designed, including a wire locker, a rotating part and an elastic part. Through the cooperation of the plane bearing and the sleeve member, the wire locker can rotate relative to the sleeve member, and drives the wire rope to rotate to remove stress and prevent winding.
Effectively removes the stress caused by the rotation of the wire rope, avoids the wire rope winding and machine damage, and improves the safety and reliability of the lifting device.
Smart Images
Figure CN223121357U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of key components in lifting devices, and more specifically, relates to a structure for releasing the rotational stress of a steel wire rope. Background Art
[0002] Currently, electrical appliances such as lamps and lighting fixtures are equipped with lifting devices. The advantage is that the electrical appliances can be lifted to a suitable height for use, giving full play to the best performance of the electrical appliances. During the lifting process with a large stroke (greater than 20 meters), since the steel wire rope is a multi-strand filament twisted structure, when the steel wire rope is wound or released, rotational stress will be generated on the steel wire rope. If it is a lifting device with a single-wire structure, the stress causes the steel wire rope to drive the lamp to rotate, and the stress will also be released as the lamp rotates. However, in a lifting device with a movable pulley structure, one end of the steel wire rope is fixed, and the other end is wound during lifting. The rotational stress on the steel wire rope cannot be released and continuously accumulates, and is transmitted to the suspended object. When the accumulated rotational stress is greater than the hanging torque, the suspended object starts to rotate. Especially when rising, the more the steel wire rope is wound, the more the steel wires connecting the movable pulley will entangle with each other. The more it rises, the more it entangles until it is completely entangled, causing damage to the machine and the steel wires. Even if the lifting is stopped midway, due to the stress not being eliminated, the steel wire rope is always in a state of stress entanglement. There is always a hidden danger of wire entanglement. The utility model specifically designs this structure component for releasing the rotational stress of the steel wire rope, which well solves the problem of wire entanglement during rising. Content of the Utility Model
[0003] The main purpose of the utility model is to provide a structure for releasing the rotational stress of a steel wire rope. The wire locking device rotates relative to the sleeve member, and the wire locking device drives the steel wire rope to rotate, removing the stress on the steel wire rope and solving the problem of wire entanglement caused by rotation.
[0004] According to the first aspect of the utility model, there is provided a structure for releasing the rotational stress of a steel wire rope,
[0005] including a wire locking device, a rotating part, an elastic part, and a sleeve member,
[0006] The upper part of the outer surface of the wire locking device is provided with a first shoulder, which divides the surface of the wire locking device into an upper main body and a lower main body. The sleeve member is rotatably installed on the lower main body;
[0007] The rotating part includes a plain bearing and a bearing support seat. The plain bearing and the bearing support seat are respectively provided with a central wire passing hole. The plain bearing and the bearing support seat are installed on the upper main body of the first shoulder through the central wire passing holes,
[0008] The elastic part is arranged between the bearing support seat and the sleeve member. The elastic part can make the bearing support seat and the plain bearing abut against the first shoulder through elastic force,
[0009] The sleeve member is provided with a second shoulder and a first thread or snap for fixing to an external bracket.
[0010] In a specific embodiment of the present utility model, a second thread portion is provided at the lower part of the lower body, and a limiting member is screwed to the second thread portion. The limiting member abuts against the sleeve member to limit the moving range of the sleeve member in the up-and-down direction along the lower body.
[0011] In a specific embodiment of the present utility model, the elastic portion is provided between the second shoulder and the bearing bracket.
[0012] In a specific embodiment of the present utility model, a third thread portion is provided on the outside of the upper body, and a decorative cover is screwed to the third thread portion. A first through hole for a steel wire rope to pass through is provided on the decorative cover.
[0013] In a specific embodiment of the present utility model, the wire locking device includes a locking member sleeved inside the lower body. At least three locking ball blocks are spaced apart on the side wall of the locking member. A third shoulder is provided inside the lower body. An internal elastic member is provided between the third shoulder and the upper end surface of the locking member. The locking member moves downward under the action of the internal elastic member to reduce the distance between the locking ball blocks. A second through hole for a steel wire rope to pass through is provided between the locking member and the third shoulder. A guiding annular surface is provided inside the lower body. The inner diameter of the guiding annular surface gradually decreases from the lower end to the upper end. The outside of the locking ball block contacts the guiding annular surface.
[0014] One of the technical solutions in the above technical solutions of the present utility model has at least the following advantages or beneficial effects: By providing a plain bearing and a sleeve member, the wire locking device can rotate relative to the sleeve member. During use, the sleeve member is installed on an external bracket or the sleeve member is limited by a limiting member. The wire locking device drives the steel wire rope to rotate along with the sleeve member to remove the stress on the steel wire rope, so as to solve the problem of winding of the steel wire rope due to rotation. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;
[0016] Figure 1 is a schematic structural view of an embodiment of the present utility model Figure One ;
[0017] Figure 2 is a schematic structural view of an embodiment of the present utility model Figure Two 。 DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0019] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the present utility model.
[0020] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.
[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the term "connection" should be understood in a broad sense. For example, it may be a fixed connection or a movable connection, or a detachable connection or a non-detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection or a connection that can communicate with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements, indirect communication or the interaction relationship between two elements.
[0023] The following disclosure provides many different embodiments or examples for implementing different solutions of the present utility model.
[0024] Refer to Figure 1As shown in the figure, the steel wire rope release and rotation stress structure includes a wire locking device, a rotating part and an elastic part. The upper part of the outer surface of the wire locking device is provided with a first shoulder 11. The first shoulder 11 divides the surface of the wire locking device into an upper main body 10 and a lower main body 12. A rotatable sleeve part 18 is also sleeved on the lower main body 12. The rotating part includes a plain bearing 15 and a bearing support 16. The plain bearing 15 and the bearing support 16 are respectively provided with a central wire passing hole. The plain bearing 15 and the bearing support 16 are installed on the upper main body 10 of the first shoulder through the central wire passing hole. The elastic part 17 is arranged between the bearing support 16 and the sleeve part 18. The elastic part 17 can drive the plain bearing 15 to abut against the first shoulder 11 through the bearing support 16. Specifically, a plurality of balls are arranged on the plain bearing 15. The upper and lower end faces of the balls are respectively in contact with the first shoulder 11 and the bearing support 16, so that the wire locking device can rotate under the action of the balls. Preferably, the elastic part 17 is a spring.
[0025] During use, after the steel wire rope 24 passes through the wire locking device and is locked by the wire locking device, when the winding wheel winds or releases the steel wire rope 24, the sleeve part 18 is limited at the installation position 20 or is limited by the limiting part 25. The wire locking device drives the steel wire rope 24 to rotate along with the sleeve part 18, removing the stress on the steel wire rope 24 to solve the problem of winding of the steel wire rope due to rotation.
[0026] In an embodiment of the present invention, the lower part of the sleeve part 18 is provided with an installation part, and the installation part is a first thread part or a snap part. Specifically, when the installation part is a first thread part, the installation position is provided with a thread section adapted to the first thread part so that the sleeve part 18 can be limited. When the installation part is a snap part, the installation position is provided with an installation part adapted to the snap part to realize the limitation of the sleeve part 18.
[0027] In an embodiment of the present invention, as Figure 2 shown, the lower part of the lower main body 12 is provided with a second thread part, and a limiting part 25 is screwed to the second thread part. The limiting part 25 abuts against the sleeve part 18 to limit the moving range of the sleeve part 18 in the up and down direction along the lower main body 12. After the limiting part 25 is installed, the sleeve part 18 can compress the elastic part 17, so that the elastic part 17 can drive the plain bearing 15 to abut against the first shoulder 11 through the bearing support 16, so as to facilitate the rotation of the wire locking device under the action of the balls.
[0028] In an embodiment of the present invention, a second shoulder 19 is arranged on the outer side of the sleeve part 18. The elastic part 17 is arranged between the second shoulder 19 and the bearing support 16. The area above the second shoulder 19 can extend into the interior of the elastic part 17, playing a role of installation guidance and facilitating the limit installation of the elastic part 17. The installation part is arranged below the second shoulder 19.
[0029] In an embodiment of the present utility model, a third thread portion is provided on the outer part of the upper main body 10, and a decorative cover 14 is screwed to the third thread portion. A first through hole for the steel wire rope 24 to pass through is provided on the decorative cover 14. The decorative cover 14 shields the upper space of the wire locking device and serves a decorative function. The second through hole facilitates the passing of the steel wire rope 24.
[0030] In an embodiment of the present utility model, the wire locking device includes a locking member 21 sleeved inside the lower main body 12. At least three locking ball blocks 22 are spaced apart on the side wall of the locking member 21. A third shoulder 13 is provided inside the lower main body 12. An internal elastic member 23 is provided between the third shoulder 13 and the upper end surface of the locking member 21. The locking member 21 moves downward under the action of the internal elastic member 23 to reduce the distance between the locking ball blocks 22. A second through hole for the steel wire rope 24 to pass through is provided on the locking member 21 and the third shoulder 13. Specifically, after the steel wire rope 24 passes through the through holes of the locking member 21 and the third shoulder 13, it is connected to the corresponding connecting wire in the installation cavity. The locking member 21 moves downward under the elastic force of the internal elastic member 23. The outer wall of the locking ball block 22 contacts the inner wall of the lower main body 12. Under the action of the inner wall of the lower main body 12, the distance between the locking ball blocks 22 is reduced, and the steel wire rope 24 is clamped. When unlocking, press the locking member 21 to make the locking member 21 move upward. The locking member 21 compresses the internal elastic member 23. The locking ball blocks 22 move upward along the inner wall of the lower main body 12. The distance between the locking ball blocks 22 increases, and the steel wire rope 24 is loosened, facilitating the pulling of the steel wire rope 24. The internal elastic member 23 is preferably a spring.
[0031] In an embodiment of the present utility model, a guiding annular surface is provided inside the lower main body 12. The inner diameter of the guiding annular surface gradually decreases from the lower end to the upper end. The outer side of the locking ball block 22 contacts the guiding annular surface. Specifically, when the locking ball block 22 moves downward with the locking member 21 from top to bottom, the locking ball blocks 22 gradually approach each other, so that the distance between the locking ball blocks 22 is reduced, and the steel wire rope 24 is clamped. When the locking ball block 22 moves upward with the locking member 21 from bottom to top, the locking ball blocks 22 gradually approach each other, so that the distance between the locking ball blocks 22193 increases, and the steel wire rope 24 is loosened.
[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. Structure for releasing the rotational stress of a wire rope, characterized in that, It includes a wire locking device, a rotating part, an elastic part and a sleeve part. The upper part of the outer surface of the wire locking device is provided with a first shoulder, and the first shoulder divides the surface of the wire locking device into an upper main body and a lower main body. The sleeve part is rotatably installed on the lower main body. The rotating part includes a plain bearing and a bearing bracket. The plain bearing and the bearing bracket are respectively provided with a central wire passing hole. The plain bearing and the bearing bracket are installed on the upper main body of the first shoulder through the central wire passing hole. The elastic part is arranged between the bearing bracket and the sleeve part, and the elastic part can make the bearing bracket and the plain bearing abut against the first shoulder through elastic force. The sleeve part is provided with a second shoulder and a first thread or a snap fastener for fixing on an external bracket.
2. The wire rope release rotation stress structure according to claim 1, wherein, The lower part of the lower main body is provided with a second thread part, and a limiting part is screwed on the second thread part. The limiting part abuts against the sleeve part to limit the moving range of the sleeve part in the up and down direction along the lower main body.
3. The wire rope release and rotational stress structure according to claim 2, characterized in that, The elastic part is arranged between the second shoulder and the bearing bracket.
4. The wire rope release and rotational stress structure according to claim 1, characterized in that, The outer part of the upper main body is provided with a third thread part, and a decorative cover is screwed on the third thread part. The decorative cover is provided with a first through hole for a steel wire rope to pass through.
5. The wire rope release rotation stress structure according to claim 1, characterized in that, The wire locking device includes a locking part sleeved in the lower main body. At least three locking ball blocks are arranged at intervals on the side wall of the locking part. A third shoulder is arranged in the lower main body. An internal elastic part is arranged between the third shoulder and the upper end surface of the locking part. The locking part moves downward under the action of the internal elastic part to reduce the distance between the locking ball blocks. The locking part and the third shoulder are provided with a second through hole for a steel wire rope to pass through. A guiding annular surface is arranged inside the lower main body. The inner diameter of the guiding annular surface gradually becomes smaller from the lower end to the upper end. The outer side of the locking ball block contacts the guiding annular surface.