Single-rope anti-rotation hoisting mechanism

Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a single-rope anti-rotation hoisting mechanism which comprises a hoisting device and a hoisting tool, the hoisting device and the hoisting tool are connected through a steel wire rope, and a limiting structure arranged outside the steel wire rope in a sleeving mode is installed between the hoisting device and the hoisting tool. The limiting structure is used for reducing deflection and shaking of the steel wire rope in the transmission process and comprises a guide sleeve, a guide wheel is arranged on the lower portion of the guide sleeve, an arc-shaped groove is formed in the surface of the guide wheel, and the steel wire rope is arranged in the arc-shaped groove so that the steel wire rope can be limited and guided and prevented from shaking. The stability of the steel wire rope in the use process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a single-rope anti-rotation lifting mechanism. Background Art

[0002] In the field of lifting machinery, the lifting mechanism is the core component that undertakes the task of lifting heavy objects. Traditional lifting mechanisms usually adopt a single-rope or multi-rope structure, which is connected to the sling through a wire rope to achieve the lifting and lowering of heavy objects. However, in practical applications, the traditional single-rope lifting mechanism has the problem that the wire rope is easy to rotate or swing, which not only affects the stability of the lifting process, but also may cause increased wear of the wire rope and shorten its service life.

[0003] Specifically, when the spreader encounters external factors such as wind force, inertia force or load changes during the lifting or lowering process, the wire rope is prone to rotate or swing under the traction of the spreader. This rotation or swing will not only increase the swing amplitude of the spreader and reduce the stability of the lifting process, but may also cause unnecessary friction and wear between the wire rope and parts such as pulleys and drums. Over time, this friction and wear will cause the strength and wear resistance of the wire rope to decrease, and even cause safety accidents such as rope breakage. Utility Model Content

[0004] In order to solve the above problems, an embodiment of the utility model provides a single-rope anti-rotation lifting mechanism which can prevent the wire rope from rotating or swinging with the sling during use, thereby improving the stability and life of the wire rope.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: a single-rope anti-rotation lifting mechanism, including a lifting device and a sling, the lifting device and the sling are connected by a wire rope, a limiting structure is arranged between the lifting device and the sling, the limiting structure includes a guide sleeve, and a guide wheel is arranged at the lower part of the guide sleeve.

[0006] As a further improvement of the above technical solution:

[0007] There are two guide wheels, and a channel for passing the steel wire rope is arranged between the two guide wheels.

[0008] A rotating shaft is arranged in the middle of the two guide wheels, and protective plates located on both sides of the guide wheels are arranged at both ends of the rotating shaft, and sealing end plates are arranged at both ends of the two protective plates.

[0009] A transfer device is arranged on the upper part of the sling, and the transfer device comprises a connecting sleeve, and an anti-rotation clamp is arranged below the connecting sleeve.

[0010] The anti-rotation clamp comprises two clamping plates which are symmetrically distributed with the center line of the connecting sleeve as the axis, a cross brace is arranged between the two clamping plates, and a bearing seat 1 for connecting the sling is arranged in the middle of the cross brace.

[0011] Both ends of the cross brace are provided with a bearing seat 2 connected with the clamping plate.

[0012] The beneficial effects of the embodiments of the utility model are as follows: the single-rope anti-rotation lifting mechanism includes a lifting device and a sling, the lifting device and the sling are connected by a steel wire rope, a limiting structure is installed between the lifting device and the sling and is sleeved on the outside of the steel wire rope, which is used to reduce the deflection and shaking of the steel wire rope during the transmission process, the limiting structure includes a guide sleeve, the lower part of the guide sleeve is provided with a guide wheel, the surface of the guide wheel is provided with an arc groove, and the steel wire rope is placed in the arc groove to limit and guide the steel wire rope, thereby avoiding shaking of the steel wire rope and improving the stability of the steel wire rope during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the installation structure of the guide wheel in the utility model;

[0015] Figure 3 It is a cross-sectional view of the guide wheel in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the cross brace in the utility model.

[0017] In the figure: 1. lifting device; 2. lifting device; 3. wire rope; 4. guide sleeve; 5. guide wheel; 6. channel; 7. rotating shaft; 8. protective plate; 9. sealing end plate; 10. connecting sleeve; 11. anti-rotation clamp; 12. clamping plate; 13. cross brace; 14. bearing seat 1; 15. bearing seat 2. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0019] like Figure 1-4As shown, the single-rope anti-rotation lifting mechanism of this embodiment includes a lifting device 1 and a sling 2, and the lifting device 1 and the sling 2 are connected by a wire rope 3. A limiting structure is installed between the lifting device 1 and the sling 2 and is sleeved on the outside of the wire rope 3. It is used to reduce the deflection and shaking of the wire rope 3 during the transmission process. The limiting structure includes a guide sleeve 4. The lower part of the guide sleeve 4 is provided with a guide wheel 5. The surface of the guide wheel 5 is provided with an arc groove. Placing the wire rope 3 in the arc groove can limit and guide the wire rope 3, avoid shaking of the wire rope 3, and improve the stability of the wire rope 3 during use.

[0020] There are two guide wheels 5, and a channel 6 for passing the wire rope 3 is provided between the two guide wheels 5. The channel 6 is formed by splicing arc grooves on the surfaces of the two guide wheels 5 after installation. The design of the channel 6 can further limit and guide the wire rope 3, and has the advantage of being more stable than a single guide wheel 5.

[0021] A rotating shaft 7 is provided in the middle of the two guide wheels 5, and protective plates 8 are provided at both ends of the rotating shaft 7 and are located on both sides of the guide wheels 5. Sealing end plates 9 are provided at both ends of the two protective plates 8. The sealing end plates 9 are arc-shaped and the inner side walls are in contact with the guide wheels 5. An arc groove is also provided on the inner side wall of the sealing end plate 9, which cooperates with the arc groove on the guide wheel 5. When one guide wheel 5 is in use, the wire rope 3 is located between the guide wheel 5 and the sealing end plate 9.

[0022] A transfer device is provided at the upper part of the sling 2, and the transfer device includes a connecting sleeve 10 for connecting the wire rope 3. An anti-rotation clamp 11 connected to the sling 2 is provided below the connecting sleeve 10. The design of the anti-rotation clamp 11 can prevent the wire rope 3 from causing cage-like distortion after the synchronous rotation of the sling 2, thereby extending the service life of the wire rope 3.

[0023] The anti-rotation clamp 11 includes two clamping plates 12 which are symmetrically distributed with the center line of the connecting sleeve 10 as the axis, and a cross brace 13 is arranged between the two clamping plates 12. A bearing seat 14 for connecting the sling 2 is arranged in the middle of the cross brace 13. The design of the bearing seat 14 can ensure that the wire rope 3 will not be affected when the sling 2 rotates. Both ends of the cross brace 13 are provided with bearing seats 15 connected to the clamping plates 12. The design of the bearing seat 15 can avoid swinging the wire rope 3 when the sling 2 rotates with the cross brace 13 as the axis.

[0024] Working principle / assembly process of this scheme: The lifting device 1 includes a motor, a reducer, a brake, and a drum. A single wire rope 3 is wound on the drum. The sling 2 is installed at the lower end of the wire rope 3. When the motor drives the drum to rotate, it drives the sling 2 to move longitudinally. A guide sleeve 4 is installed in the middle of the wire rope 3, and one side of the guide sleeve 4 is fixed to the frame. The lifting and lowering of the wire rope 3 are initially constrained by the guide sleeve 4, and then the wire rope 3 is passed through the channel 6 for secondary constraint, so as to increase the stability of the wire rope 3 during use and avoid it from shaking. The adapter can connect the wire rope 3 and the sling 2. At the same time, the design of the anti-rotation clamp 11 can avoid cage-like distortion of the wire rope 3, further improve the stability of the wire rope 3, and extend the operating stability of the wire rope 3.

[0025] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0028] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A single-rope anti-rotation lifting mechanism, comprising a lifting device (1) and a sling (2), wherein the lifting device (1) and the sling (2) are connected via a steel wire rope (3), characterized in that: A limiting structure is provided between the lifting device (1) and the sling (2), the limiting structure comprising a guide sleeve (4), and a guide wheel (5) is provided at the lower part of the guide sleeve (4).

2. The single-rope anti-rotation lifting mechanism according to claim 1, characterized in that: There are two guide wheels (5), and a channel (6) for passing the steel wire rope (3) is provided between the two guide wheels (5).

3. The single-rope anti-rotation lifting mechanism according to claim 2 is characterized in that: A rotating shaft (7) is provided in the middle of each of the two guide wheels (5), and protective plates (8) located on both sides of the guide wheels (5) are provided at both ends of the rotating shaft (7), and sealing end plates (9) are provided at both ends of the two protective plates (8).

4. The single-rope anti-rotation lifting mechanism according to claim 1, characterized in that: A transfer device is provided on the upper part of the sling (2), the transfer device comprising a connecting sleeve (10), and an anti-rotation clamp (11) is provided below the connecting sleeve (10).

5. The single-rope anti-rotation lifting mechanism according to claim 4 is characterized in that: The anti-rotation clamp (11) comprises two clamping plates (12) symmetrically distributed about the center line of the connecting sleeve (10), a cross brace (13) being arranged between the two clamping plates (12), and a bearing seat (14) for connecting the sling (2) being arranged in the middle of the cross brace (13).

6. The single-rope anti-rotation lifting mechanism according to claim 5, characterized in that: Both ends of the cross brace (13) are provided with a second bearing seat (15) connected to the clamping plate (12).

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