Rotatable hoisting sling

Abstract

The utility model provides a rotatable hoisting sling, which belongs to the technical field of hoisting slings and comprises a turntable and a connecting component connected with the turntable, a plurality of sling iron chains are fixedly arranged on the bottom surface of the turntable, hooks are fixedly arranged at the bottoms of the sling iron chains, and the connecting component comprises a hanging rod, a connecting hole, a lower clamping disc and an upper clamping disc. A connecting hole is formed in the upper portion of the hanging rod in a penetrating mode, a lower clamping disc is fixedly arranged at the bottom of the hanging rod, and a lower clamping disc is fixedly arranged on the outer side surface of the hanging rod. By arranging the driving assembly, when a heavy object is hoisted, the hoisting rod is installed on the crane through the connecting holes, the hooks of the multiple sling iron chains are hung on the heavy object needing to be hoisted, and when the angle of the cargo needs to be adjusted in the hoisting process, the rotating disc is driven by the driving mechanism to rotate, so that the heavy object is hoisted. The rotating disc drives the heavy object to rotate through the sling iron chain and the hook, the effect of adjusting the cargo angle is achieved, cargo angle adjustment is achieved without manual cargo pushing, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the field of lifting slings technology, and in particular to a rotatable lifting sling. Background Technology

[0002] Lifting slings are the connecting parts between the crane or the main body of the load and the object being lifted. They encompass slings and lifting devices, mainly including wire rope slings, chain slings, lifting slings, shackles, hooks, lifting clamps, magnetic lifting devices, etc.

[0003] In the prior art, the patent with authorization announcement number CN222475879U discloses a rotatable lifting sling. This device can make the rotating disk rotate with the support disk and the positioning disk through the rolling groove and the ball, so that the rotation of the rotating disk is more stable. It can stably lift the goods through four sets of hooks. The rotating disk can be stopped by the hydraulic cylinder, the clamping block and the brake pad, thereby stopping the rotation of the rotating disk and stably lifting the goods, so that the sling can be used more effectively.

[0004] However, when the device needs to adjust the angle of the heavy object during hoisting, it requires manual pushing of the cargo to make the turntable rotate. When hoisting heavy objects, manually pushing the cargo to make the cargo and turntable rotate affects the personal safety of the workers and is not conducive to the angle adjustment and stable hoisting of the cargo. Therefore, a rotatable lifting sling is designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the above-mentioned background art by proposing a rotatable lifting sling.

[0006] The technical problem to be solved by this utility model is to provide a rotatable lifting sling, which solves the problem that in the prior art, when the angle of the lifted heavy object needs to be adjusted, the angle of the object is adjusted by manually pushing the object, which affects the personal safety of the workers and is not conducive to the angle adjustment and stable lifting of the object.

[0007] This utility model provides a rotatable lifting sling, including a turntable and a connecting assembly connected to the turntable. Multiple lifting chains are fixedly mounted on the bottom surface of the turntable, and hooks are fixedly mounted on the bottom of each lifting chain. The connecting assembly includes a boom, a connecting hole, a lower clamping plate, and an upper clamping plate. The connecting hole extends through the top of the boom, and the lower clamping plate is fixedly mounted on the bottom of the boom. The lower clamping plate is also fixedly mounted on the outer surface of the boom. The boom passes through the center of the turntable, which is positioned between the lower and upper clamping plates. A first annular groove is formed on both the upper and lower surfaces of the turntable. A second annular groove is formed on the upper and lower surfaces of the upper and lower clamping plates. The first and second annular grooves form an annular channel, within which multiple balls are rolled. A toothed ring is fixedly mounted on the outer surface of the turntable, and a driving mechanism for rotating the turntable is fixedly mounted on the boom.

[0008] Preferably, the drive mechanism includes a fixed ring, which is fixedly mounted on the boom. Horizontal plates are fixedly mounted on both the left and right sides of the fixed ring. A transmission assembly is mounted on the left horizontal plate, and an emergency stop assembly is mounted on the right horizontal plate.

[0009] Preferably, the transmission assembly and the emergency stop assembly have the same weight.

[0010] Preferably, the transmission assembly includes a motor and a first gear, with the motor mounted on the left horizontal plate and the first gear mounted on the output end of the motor.

[0011] Preferably, the emergency stop assembly includes a rotating shaft, a second gear, a rotating column, an electro-hydraulic rod, and an arc-shaped plate. The rotating shaft is rotatably mounted on the right horizontal plate via a bearing. The second gear is fixedly mounted at the bottom of the rotating shaft, and the rotating column is fixedly mounted at the top of the rotating shaft. The electro-hydraulic rod is mounted on the right horizontal plate via a mounting plate, and the arc-shaped plate is fixedly mounted at the output end of the electro-hydraulic rod.

[0012] Preferably, both the first gear and the second gear mesh with the gear ring.

[0013] Preferably, the arc-shaped plate is located to the left of the rotating column, and the inner diameter of the arc-shaped plate is equal to the outer diameter of the rotating column, and the arc of the arc-shaped plate is 180°.

[0014] Preferably, when the electro-hydraulic rod extends or retracts, the arc-shaped plate can be sleeved on the rotating column.

[0015] Preferably, the inner surface of the arc-shaped plate is provided with a frosted layer.

[0016] Compared with the prior art, this utility model has at least the following beneficial effects:

[0017] 1. This utility model, by setting up a drive component, allows for the installation of a lifting rod onto a crane through a connection hole when hoisting heavy objects. The hooks of multiple sling chains are then attached to the heavy objects to be hoisted. During the hoisting process, when it is necessary to adjust the angle of the goods, the drive mechanism drives the turntable to rotate. The turntable, through the sling chains and hooks, drives the heavy objects to rotate, thereby achieving the effect of adjusting the angle of the goods. There is no need for manual pushing of the goods to adjust the angle, making the operation simple and convenient.

[0018] 2. By incorporating ball bearings, this utility model reduces friction between the turntable and the lower and upper clamping plates as the turntable rotates, with the ball bearings rolling within the first and second annular grooves.

[0019] 3. This utility model is equipped with a transmission component. When it is necessary to adjust the angle of the hoisted object, the motor is turned on, the motor drives the first gear to rotate, the first gear drives the gear ring, and the turntable rotates. The turntable drives the object to rotate through the sling chain and hook, thereby achieving the effect of adjusting the angle of the hoisted object.

[0020] 4. This utility model is equipped with an emergency stop component. After the angle adjustment is completed, the motor stops rotating and the arc plate moves to the right by extending the electro-hydraulic rod. The arc plate is in close contact with the rotating column, which prevents the rotating shaft and the second gear from rotating. The second gear meshes with the gear ring, which prevents the gear ring and the turntable from rotating. This prevents the goods and the turntable from rotating due to inertia after the motor is turned off, and prevents the angle deviation problem when adjusting the angle of the hoisted heavy object. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A.

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the drive mechanism of this utility model. Figure 1 .

[0026] Figure 5This is a schematic diagram of the three-dimensional structure of the drive mechanism of this utility model. Figure 2 .

[0027] [Figure Labels]

[0028] 1. Turntable; 101. First annular groove; 102. Gear ring; 2. Lifting rod; 201. Connecting hole; 202. Lower clamping plate; 203. Upper clamping plate; 204. Second annular groove; 205. Ball bearing; 3. Lifting cable chain; 4. Hook; 5. Fixing ring; 501. Horizontal plate; 502. Motor; 503. First gear; 504. Rotating shaft; 505. Second gear; 506. Rotating column; 507. Electro-hydraulic rod; 508. Arc plate. Detailed Implementation

[0029] Example:

[0030] like Figures 1-5 As shown, an embodiment of this utility model provides a rotatable lifting sling, including a turntable 1 and a connecting assembly connected to the turntable 1. Multiple sling chains 3 are fixedly mounted on the bottom surface of the turntable 1, and hooks 4 are fixedly mounted on the bottom of each sling chain 3. The connecting assembly includes a boom 2, a connecting hole 201, a lower clamping plate 202, and an upper clamping plate 203. The connecting hole 201 is provided through the top of the boom 2, the lower clamping plate 202 is fixedly mounted on the bottom of the boom 2, and the upper clamping plate 203 is fixedly mounted on the outer surface of the boom 2. The turntable 1 is located in the center and between the lower clamping plate 202 and the upper clamping plate 203. The upper and lower surfaces of the turntable 1 are provided with a first annular arc groove 101. The upper clamping plate 203 has a second annular arc groove 204 on its upper surface and bottom surface. The first annular arc groove 101 and the second annular arc groove 204 form an annular channel, and multiple balls 205 are rolled in the annular channel. A toothed ring 102 is fixedly provided on the outer surface of the turntable 1. A drive mechanism for driving the turntable 1 to rotate is fixedly provided on the lifting rod 2.

[0031] With a drive assembly, when hoisting heavy objects, the boom 2 is installed on the crane through the connection hole 201, and the hooks 4 of the multiple sling chains 3 are hung on the heavy objects to be hoisted. When it is necessary to adjust the angle of the goods during the hoisting process, the drive mechanism drives the turntable 1 to rotate. The turntable 1 drives the heavy objects to rotate through the sling chains 3 and hooks 4, thereby achieving the effect of adjusting the angle of the goods. There is no need to manually push the goods to adjust the angle of the goods. The operation is simple and convenient.

[0032] By incorporating ball bearings 205, the ball bearings 205 roll within the first annular groove 101 and the second annular groove 204 during the rotation of the turntable 1, thereby reducing the friction between the turntable 1 and the upper clamping plate 203.

[0033] In this embodiment, the drive mechanism includes a fixed ring 5, which is fixedly mounted on the boom 2. Horizontal plates 501 are fixedly mounted on both the left and right sides of the fixed ring 5. A transmission assembly is mounted on the left horizontal plate 501, and an emergency stop assembly is mounted on the right horizontal plate 501.

[0034] In this embodiment, the transmission assembly and the emergency stop assembly have the same weight, ensuring that the weight on both sides of the horizontal plate 501 is the same, thus ensuring the stability of the boom 2 in a vertical state.

[0035] In this embodiment, the transmission assembly includes a motor 502 and a first gear 503. The motor 502 is mounted on the left horizontal plate 501, and the first gear 503 is mounted on the output end of the motor 502.

[0036] In this embodiment, the emergency stop assembly includes a rotating shaft 504, a second gear 505, a rotating column 506, an electro-hydraulic rod 507, and an arc-shaped plate 508. The rotating shaft 504 is rotatably mounted on the right horizontal plate 501 via a bearing. The second gear 505 is fixedly mounted on the bottom of the rotating shaft 504, and the rotating column 506 is fixedly mounted on the top of the rotating shaft 504. The electro-hydraulic rod 507 is mounted on the right horizontal plate 501 via a mounting plate, and the arc-shaped plate 508 is fixedly mounted on the output end of the electro-hydraulic rod 507.

[0037] In this embodiment, both the first gear 503 and the second gear 505 mesh with the gear ring 102, which facilitates the first gear 503 to drive the gear ring 102 to rotate, thereby achieving the effect of driving the turntable 1 to rotate.

[0038] By incorporating a transmission assembly, when it is necessary to adjust the angle of the hoisted object, the motor 502 is activated. The motor 502 drives the first gear 503 to rotate, which in turn drives the gear ring 102, causing the turntable 1 to rotate. The turntable 1 then drives the object to rotate via the sling chain 3 and the hook 4, thereby achieving the effect of adjusting the angle of the hoisted object.

[0039] In this embodiment, the arc plate 508 is located to the left of the rotating column 506, and the inner diameter of the arc plate 508 is equal to the outer diameter of the rotating column 506, and the arc of the arc plate 508 is 180°.

[0040] In this embodiment, when the electric hydraulic rod 507 extends or retracts, the arc plate 508 can be sleeved on the rotating column 506. The friction between the arc plate 508 and the rotating column 506 can prevent the rotating column 506 from rotating.

[0041] In this embodiment, the inner surface of the arc plate 508 is provided with a frosted layer to increase the friction coefficient of the arc plate 508, thereby increasing the friction between the arc plate 508 and the rotating column 506.

[0042] With an emergency stop component, after angle adjustment, the motor 502 stops rotating and the electric hydraulic rod 507 extends to move the arc plate 508 to the right. The arc plate 508 is in close contact with the rotating column 506, which prevents the rotating shaft 504 and the second gear 505 from rotating. The second gear 505 meshes with the gear ring 102, which prevents the gear ring 102 and the turntable 1 from rotating. This prevents the goods and the turntable 1 from rotating due to inertia after the motor 502 is turned off, and prevents angle deviation during the angle adjustment of the hoisted heavy object.

[0043] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A rotatable lifting sling, characterised in that: The utility model provides a connecting assembly of rotating disc, it includes rotating disc (1) and connecting assembly with rotating disc (1) is connected, the bottom surface of rotating disc (1) is fixedly arranged with a plurality of sling iron chain (3), the bottom of sling iron chain (3) is fixedly arranged with hook (4), and the connecting assembly includes suspender (2), connecting hole (201), lower clamping disc (202) and upper clamping disc (203), the upper side of suspender (2) is arranged with connecting hole (201), the bottom of suspender (2) is fixedly arranged with lower clamping disc (202), the outer side surface of suspender (2) is fixedly arranged with lower clamping disc (202), and suspender (2) is penetrated in the center of rotating disc (1), and rotating disc (1) is between lower clamping disc (202) and upper clamping disc (203), the upper and lower surfaces of rotating disc (1) are all set with first annular arc groove (101), the upper surface of lower clamping disc (202) and the bottom surface of upper clamping disc (203) are all set with second annular arc groove (204), first annular arc groove (101) and second annular arc groove (204) form annular channel, and a plurality of ball bearings (205) are arranged in annular channel and roll, the outer side surface of rotating disc (1) is fixedly arranged with gear ring (102), and the driving mechanism of driving rotating disc (1) rotation is fixedly arranged on suspender (2).

2. A rotatable lifting sling as claimed in claim 1, characterised in that: The driving mechanism includes fixed ring (5), the fixed ring (5) is fixedly arranged on suspender (2), the left and right sides of fixed ring (5) are all fixedly arranged with horizontal plate (501), and the left horizontal plate (501) is installed with transmission assembly, and the right horizontal plate (501) is installed with emergency stop assembly.

3. A rotatable lifting sling as claimed in claim 2, characterised in that: The weight of transmission assembly and emergency stop assembly is same.

4. A rotatable lifting sling as claimed in claim 3, characterised in that: The transmission assembly includes motor (502) and first gear (503), and the left horizontal plate (501) is installed with motor (502), and the output end of motor (502) is installed with first gear (503).

5. A rotatable lifting sling as claimed in claim 4, characterised in that: The emergency stop assembly includes rotating shaft (504), second gear (505), rotating column (506), electric hydraulic rod (507) and arc plate (508), the rotating shaft (504) is rotatably arranged on the right horizontal plate (501) through bearing, the bottom of rotating shaft (504) is fixedly arranged with second gear (505), the top of rotating shaft (504) is fixedly arranged with rotating column (506), the right horizontal plate (501) is installed with electric hydraulic rod (507) through mounting plate, and the output end of electric hydraulic rod (507) is fixedly arranged with arc plate (508).

6. A rotatable lifting sling as claimed in claim 5, characterised in that: The first gear (503) and second gear (505) are all engaged with gear ring (102).

7. A rotatable lifting sling as claimed in claim 6, characterised in that: The arc plate (508) is at the left side of rotating column (506), and the corresponding inner diameter of arc plate (508) is equal to the outer diameter of rotating column (506), and the corresponding radian of arc plate (508) is 180 DEG.

8. A rotatable lifting sling as claimed in claim 7, characterised in that: When the electric hydraulic rod (507) is telescopic, the arc plate (508) can be sleeved on the rotating column (506).

9. A rotatable lifting sling as claimed in claim 8, characterised in that: The inner side surface of arc plate (508) is provided with frosted layer.

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