Anti-torsion lifting appliance

Abstract

The utility model relates to the technical field of slings, and discloses an anti-torsion sling which comprises a top frame, a lifting motor is mounted on the top frame, an output shaft of the lifting motor is connected with a gear box, the gear box is provided with two coaxial output shafts, and the two output shafts extend oppositely and have the same rotating speed. The two output shafts are each provided with a wire shaft, each wire shaft is connected with a front sling and a rear sling, the two front slings and the two rear slings are jointly connected with a bottom frame in a hanging mode, and the front slings and the rear slings are both connected with the two adjacent side faces of the bottom frame in a hanging mode. According to the device, the problem that a four-rope suspension structure is prone to being influenced by device movement to generate torsion and influence hoisting is solved, and the torsion resistance performance is improved through repeated transfer of the ropes.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, and more specifically, to an anti-twist sling. Background Art

[0002] A sling is a device used in lifting machinery to lift heavy objects. The most commonly used slings for lifting piece items are hooks and slings. Others include lifting rings, lifting suction cups, clamps and forks, which are widely used in the lifting and hoisting industry.

[0003] Large lifting slings usually use a four-rope suspension structure. One end of the rope is wrapped around the winch, and the other end passes through the pulley and is fixed to the top frame. However, during operation, the top frame of the sling is prone to swing with the movement of the lifting device, causing the rope to twist and the cargo to sway, affecting the stacking. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an anti-twist hanger.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A torsion-proof sling comprises a top frame, a lifting motor is mounted on the top frame, a gear box is connected to the output shaft of the lifting motor, the gear box is provided with two coaxial output shafts, the two output shafts extend in opposite directions and have the same rotation speed, a bobbin is mounted on each of the two output shafts, a front sling and a rear sling are connected to the bobbin, a bottom frame is hung on the two front slings and the two rear slings, the front slings and the rear slings are hung on two adjacent side surfaces of the bottom frame, and the two front slings and the two rear slings are symmetrically arranged about the axis of the bobbin.

[0007] The utility model is further configured as follows: cross beams are provided on both sides of the top frame, the cross beams are parallel to the spool, a fixed frame is fixed at the center position of the outer side of the cross beam, the front sling includes rope 1, both ends of the cross beam are rotatably installed with steering wheel 1 and auxiliary wheel, the steering wheel 1 is installed above the cross beam, the auxiliary wheel is installed on the outer side of the cross beam, a hanging wheel 1 is rotatably installed on the side of the bottom frame perpendicular to the cross beam, and a hanging wheel 2 is rotatably installed on the side of the bottom frame parallel to the cross beam, one end of the rope 1 is wound around the spool, and the other end of the rope 1 is passed around the hanging wheel 1, the steering wheel 1, the auxiliary wheel and the hanging wheel 2 in sequence, and is fixed to the fixed frame.

[0008] The utility model is further configured as follows: the axes of the hanging wheel 1 and the steering wheel 1 are parallel to the axis of the spool, the axes of the auxiliary wheel and the hanging wheel 2 are perpendicular to the axis of the spool, the hanging wheel 1 and the hanging wheel 2 are arranged at the center position of the side of the base frame, and the center plane of the steering wheel 1 perpendicular to the axis is in the same vertical plane as the end of the auxiliary wheel circumference facing outward.

[0009] The utility model is further configured as follows: the rear sling has the same structure as the front sling, the rear sling comprises rope two, a sling wheel three, a steering wheel two, an auxiliary wheel two and a sling wheel four, the sling wheel three and the sling wheel four are coaxially arranged corresponding to the sling wheel one and the sling wheel two respectively, the steering wheel two and the auxiliary wheel two are arranged opposite to the steering wheel one and the auxiliary wheel respectively, one end of the rope two is wound around the bobbin, the other end of the rope two is passed around the sling wheel three, the steering wheel two, the auxiliary wheel two and the sling wheel four in sequence, and is fixed to a fixed frame.

[0010] The utility model is further configured as follows: the rope 1 is wound around one end of the bobbin close to the gear box, the hanging wheel 3 is arranged on the outside of the hanging wheel 1, the rope 2 is wound around one end of the bobbin away from the gear box, and the ends of the rope 1 and the rope 2 are connected to one end of the fixing frame away from the corresponding bobbin.

[0011] The utility model is further configured as follows: the first rope is wound from one end close to the gear box to the middle position of the spool, and the second rope is wound from one end away from the gear box to the middle position of the spool.

[0012] The advantages of the utility model are:

[0013] Two front slings and two rear slings are symmetrically arranged. The front sling is respectively provided with a sling wheel 1 and a sling wheel 2 on two adjacent side edges of the bottom frame, and a steering wheel 1 and an auxiliary wheel are rotatably installed on the corresponding crossbeam of the top frame. Rope 1 passes through sling wheel 1, steering wheel 1, auxiliary wheel and sling wheel 2 in sequence and is connected to the fixed frame. The rear sling has the same structure as the front sling. When the lifting device or the cargo shakes and the rope twists, the parts on the two side edges perpendicular to each other pull each other, thereby reducing the twisting amplitude and having an anti-twist function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the front sling connection structure shown in the utility model;

[0016] Figure 3 It is a schematic diagram of the rear sling connection structure shown in the utility model;

[0017] In the figure: 1. top frame; 11. crossbeam; 2. lifting motor; 3. gear box; 4. bobbin; 5. front sling; 51. rope one; 52. lifting wheel one; 53. steering wheel one; 54. auxiliary wheel; 55. lifting wheel two; 6. rear sling; 61. rope two; 62. lifting wheel three; 63. steering wheel two; 64. lifting wheel four; 7. bottom frame; 8. fixed frame. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0020] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0021] See also Figure 1-3 , the utility model provides the following technical solutions:

[0022] A torsion-proof sling comprises a top frame 1, on which a lifting motor 2 is mounted, on which an output shaft of the lifting motor 2 is connected a gear box 3, on which two coaxially arranged output shafts are mounted, the two output shafts extend in opposite directions and have the same rotation speed, on which a bobbin 4 is mounted, on which a front sling 5 and a rear sling 6 are connected, a bottom frame 7 is hung on the two front slings 5 ​​and the two rear slings 6, the front slings 5 ​​and the rear slings 6 are hung on two adjacent side surfaces of the bottom frame 7, the two front slings 5 ​​and the two rear slings 6 are symmetrically arranged about the axis of the bobbin 4; the same sling is connected to two adjacent side surfaces of the bottom frame 7 at the same time, and when the bottom frame 7 shakes or twists, the parts of the rope on the two side surfaces pull each other, which can reduce the displacement of the rope, thereby reducing the torsion amplitude and achieving the torsion-proof effect.

[0023] A crossbeam 11 is arranged on both sides of the top frame 2, the crossbeam 11 is parallel to the bobbin 4, a fixing frame 8 is fixed at the center position of the outer side of the crossbeam 11, a steering wheel 53 and an auxiliary wheel 54 are installed at both ends of the crossbeam 11, the steering wheel 53 is installed above the crossbeam 11, and the auxiliary wheel 54 is installed on the outer side of the crossbeam 11, a hanging wheel 52 is rotatably installed on one side of the bottom frame 7 perpendicular to the crossbeam 11, and a hanging wheel 2 55 is rotatably installed on one side of the bottom frame 7 parallel to the crossbeam 11, and the front sling 5 includes a rope 51, one end of the rope 51 is wound around the bobbin 4, and the other end of the rope 51 is passed around the hanging wheel 52, the steering wheel 53, the auxiliary wheel 54 and the hanging wheel 2 55 in sequence, and is fixed on the fixing frame 8;

[0024] The rear sling 6 has the same structure as the front sling 5. The rear sling 6 includes a rope 2 61, a sling wheel 3 62, a steering wheel 2 63, an auxiliary wheel 2 and a sling wheel 4 64. The sling wheel 3 62 and the sling wheel 4 64 are coaxially arranged with the sling wheel 1 52 and the sling wheel 2 55 respectively. The steering wheel 2 63 and the auxiliary wheel 2 are arranged opposite to the steering wheel 1 53 and the auxiliary wheel 54 respectively. One end of the rope 2 61 is wound around the bobbin 4, and the other end of the rope 2 61 is passed through the sling wheel 3 63, the steering wheel 2 63, the auxiliary wheel 2 and the sling wheel 4 64 in sequence and fixed to the fixing frame 8.

[0025] The stability of the connection between the base frame 7 and the top frame 1 is ensured by the two front slings 5 ​​and the two rear slings 6 that are relatively arranged. The lifting motor 2 can synchronously control the winding and releasing of all ropes, and the base frame 7 and the cargo hoisted thereunder pull the ropes downward, so that all the lifting wheels can remain stable on the ropes, thereby ensuring the stability of the cargo lifting process.

[0026] The axes of the hanging wheel 1 52 and the steering wheel 1 53 are parallel to the axis of the spool 4, the axes of the auxiliary wheel 54 and the hanging wheel 2 55 are perpendicular to the axis of the spool 4, the hanging wheel 1 52 and the hanging wheel 2 55 are both arranged at the center of the side of the base frame 7, when the rope 1 51 passes over the hanging wheel 1 52 from the spool 4, there is a certain angle between the rope 1 51 and the groove of the hanging wheel 1 52, and an arc-shaped covering plate can be arranged on the circumference of the hanging wheel 1 52 to cover the rope 1 51 in the groove of the hanging wheel 1 52, so as to prevent the rope 1 51 from slipping out of the hanging wheel 1 52 and ensure the stability of the connection;

[0027] The end of the auxiliary wheel 54 facing the outside of the sling is in the same vertical plane as the radial center plane of the steering wheel 53. The rope 51 is in a vertical state between the steering wheel 53 and the auxiliary wheel 54. After the rope 51 passes through the steering wheel 53 and turns from rising to falling, it is then turned through the auxiliary wheel 54 to extend in a plane parallel to the crossbeam 11, and then passes through the hanging wheel 2 55. Through multiple transfers, it is ensured that the rope 51 is tangentially arranged with the grooves of each pulley, which facilitates the movement of the rope 51 in each pulley, can prevent the rope 51 from escaping from the pulley, and reduce the friction between the rope 51 and each pulley to avoid damage.

[0028] The rope 1 51 is wound around one end of the bobbin 4 close to the gear box 3, and the rope 1 51 is wound from the end close to the gear box 3 to the middle position of the bobbin 4. The hanging wheel 3 62 is arranged on the outside of the hanging wheel 1 52. The rope 2 61 is wound around one end of the bobbin 4 away from the gear box 3, and the rope 2 61 is wound from the end away from the gear box 3 to the middle position of the bobbin 4. The ends of the rope 1 51 and the rope 2 61 are connected to one end of the fixing frame 8 away from the corresponding bobbin 4.

[0029] When the spool 4 reels the rope, the base frame 7 rises, and the distance between the rope 1 51 and the rope 2 61 on the spool 4 is close, but the length of the rope between the spool 4 and the base frame 7 is shortened, and twisting is not easy to occur;

[0030] When the spool 4 unwinds the rope, the chassis 7 descends. At this time, the distance between the rope 1 51 and the rope 2 61 on the spool 4 becomes larger. Even if the rope length between the spool 4 and the chassis 7 is longer, it is not easy to twist because the distance between them becomes larger.

[0031] Specifically, two front slings 5 ​​and two rear slings 6 are symmetrically arranged. The front sling 5 is respectively installed with a sling wheel 1 52 and a sling wheel 2 55 on two adjacent side edges of the base frame 7, and a steering wheel 1 53 and an auxiliary wheel 54 are rotatably installed on the crossbeam 11 of the top frame 1. The rope 1 51 passes through the sling wheel 1 52, the steering wheel 1 53, the auxiliary wheel 54 and the sling wheel 2 55 in sequence and is connected to the fixed frame 8. The rear sling 6 has the same structure as the front sling 5. When the lifting device or the cargo shakes and the rope twists, the parts on the two side edges perpendicular to each other pull each other, thereby reducing the twisting amplitude and having an anti-twist function.

[0032] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar opposites, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0035] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An anti-twist hanger, comprising a top frame (1), characterized in that: A lifting motor (2) is installed on the top frame (1), and a gear box (3) is connected to the output shaft of the lifting motor (2). The gear box (3) is provided with two coaxial output shafts, and the two output shafts extend in opposite directions and have the same rotation speed. A bobbin (4) is installed on each of the two output shafts, and a front sling (5) and a rear sling (6) are connected to the bobbin (4). The two front slings (5) and the two rear slings (6) are jointly hung with a bottom frame (7), and the front slings (5) and the rear slings (6) are hung with two adjacent side surfaces of the bottom frame (7). The two front slings (5) and the two rear slings (6) are symmetrically arranged about the axis of the bobbin (4).

2. The anti-twist hanger according to claim 1, characterized in that: The top frame (1) is provided with crossbeams (11) on both sides, the crossbeams (11) are parallel to the spool (4), a fixing frame (8) is fixed at the center of the outer side of the crossbeam (11), the front sling (5) comprises a rope (51), and both ends of the crossbeam (11) are rotatably mounted with a steering wheel (53) and an auxiliary wheel (54), the steering wheel (53) is mounted above the crossbeam (11), and the auxiliary wheel (54) is mounted on the crossbeam (11). On the outer side, a first hanging wheel (52) is rotatably mounted on one side of the base frame (7) perpendicular to the cross beam (11), and a second hanging wheel (55) is rotatably mounted on one side of the base frame (7) parallel to the cross beam (11). One end of the first rope (51) is wound around the bobbin (4), and the other end of the first rope (51) is passed through the first hanging wheel (52), the first steering wheel (53), the auxiliary wheel (54) and the second hanging wheel (55) in sequence, and is fixed to the fixed frame (8).

3. The anti-twist hanger according to claim 2, characterized in that: The axes of the hanging wheel 1 (52) and the steering wheel 1 (53) are parallel to the axis of the spool (4), the axes of the auxiliary wheel (54) and the hanging wheel 2 (55) are perpendicular to the axis of the spool (4), the hanging wheel 1 (52) and the hanging wheel 2 (55) are arranged at the center position of the side of the base frame (7), and the center plane of the steering wheel 1 (53) perpendicular to the axis is in the same vertical plane as the end of the auxiliary wheel (54) facing outward.

4. The anti-twist hanger according to claim 3, characterized in that: The rear sling (6) has the same structure as the front sling (5). The rear sling (6) comprises a rope 2 (61), a sling wheel 3 (62), a steering wheel 2 (63), an auxiliary wheel 2 and a sling wheel 4 (64). The sling wheel 3 (62) and the sling wheel 4 (64) are coaxially arranged corresponding to the sling wheel 1 (52) and the sling wheel 2 (55), respectively. The steering wheel 2 (63) and the auxiliary wheel 2 are arranged opposite to the steering wheel 1 (53) and the auxiliary wheel (54), respectively. One end of the rope 2 (61) is wound around the bobbin (4), and the other end of the rope 2 (61) is passed around the sling wheel 3 (62), the steering wheel 2 (63), the auxiliary wheel 2 and the sling wheel 4 (64) in sequence and is fixed to the fixing frame (8).

5. The anti-twist hanger according to claim 4, characterized in that: The rope 1 (51) is wound around one end of the spool (4) close to the gear box (3), the hanging wheel 3 (62) is arranged on the outside of the hanging wheel 1 (52), the rope 2 (61) is wound around one end of the spool (4) away from the gear box (3), and the ends of the rope 1 (51) and the rope 2 (61) are both connected to one end of the fixing frame (8) away from the corresponding spool (4).

6. The anti-twist hanger according to claim 5, characterized in that: The first rope (51) is wound from an end close to the gear box (3) to the middle position of the spool (4), and the second rope (61) is wound from an end away from the gear box (3) to the middle position of the spool (4).

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