Automatic centering spreader

Abstract

The utility model relates to the technical fields of lifting appliance, especially a kind of automatic outer bracing centering lifting appliance, which can be more firm and stable when hoisting disc parts and parts with middle through hole, and the lifting appliance is more convenient to use;Including hoisting part and hook part, the hoisting part includes pull rod, pull rod top end is provided with lifting ring, pull rod bottom end is fixedly connected with conical table, the hook part includes sleeve, sleeve is movably sleeved on pull rod, sleeve top end is integrally connected with 13, three groups of hinged seats are arranged on the lower side annular of sleeve outer wall, and hook is rotatably connected on three groups of hinged seats, hook is L type, and the bottom end of hook is upwardly inclined inclined plane, and the inner side of three hooks is all abutted on the outer wall of conical table.

Description

Technical Field

[0001] This utility model relates to the technical field of lifting devices, and in particular to an automatic external support centering lifting device. Background Technology

[0002] In industrial production, the use of lifting equipment is indispensable. Lifting equipment enables lifting machinery to lift heavy objects, making it convenient for hoisting and moving heavy objects.

[0003] When lifting disc-shaped parts, engine housing components with central through holes, and relatively balanced components such as automotive brake hubs, engine flywheels, and engine flywheel housings, existing lifting tools are not suitable for lifting these components. This results in insufficient clamping and inconvenience during lifting. Therefore, a new type of lifting tool is urgently needed to lift these components. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic external support centering lifting device that can make the lifting device clamp more firmly and stably when lifting disc-shaped parts and parts with a central through hole, and is more convenient to use.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic external support centering lifting device, comprising a lifting component and a hook component. The lifting component includes a pull rod with a lifting ring at the top and a conical platform fixedly connected to the bottom. The hook component includes a sleeve that is movably fitted onto the pull rod. The top of the sleeve is integrally connected to a 13. Three sets of hinge seats are provided equidistantly in a ring on the lower side of the outer wall of the sleeve. Each of the three sets of hinge seats is rotatably connected to a hook. The hook is L-shaped, and the bottom of the hook is an upwardly inclined slope. The inner sides of the three sets of hooks abut against the outer wall of the conical platform.

[0007] Preferably, the hinge seat includes a U-shaped connecting frame, which is fixedly connected to the outer wall of the sleeve. An internal hexagon bolt is inserted into the U-shaped connecting frame, and a lock nut is screwed onto one end of the internal hexagon bolt. A through hole is provided at the top of the hook, and the hook is rotatably connected to the U-shaped connecting frame through the cooperation of the internal hexagon bolt and the lock nut is pressed onto the U-shaped connecting frame.

[0008] Preferably, the top end of the pull rod is rotatably connected to an adapter seat, and the lifting ring is rotatably sleeved on the adapter seat.

[0009] Preferably, the outer wall of the conical platform is provided with three sets of positioning grooves at equal intervals in a ring, and the inner sides of the three sets of hooks respectively abut against the three sets of positioning grooves.

[0010] Preferably, the sleeve is movably fitted onto the pull rod via a clearance fit.

[0011] Preferably, the edges at the connection between the pull rod and the conical platform, as well as the inner corners of the hook and the upper and lower edges of the conical platform, are rounded.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, by cooperating with the conical platform and the hook, the hook can be automatically opened or closed by moving the conical platform upward or downward. The conical platform applies external support force to open the hook, making the hook clamped to the inner hole of the workpiece more firmly and stably. This lifting method makes the clamping more firm and stable when lifting disc-shaped parts, engine housing parts with a central through hole, and relatively balanced parts such as automobile brake hubs, engine flywheels, and engine flywheel housings. The self-tightening and loosening of the hook makes the lifting tool more convenient to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is an isometric structural diagram of the connection between the sleeve and the hinge seat in this utility model;

[0015] Figure 3 This is an isometric structural diagram of the hook in this utility model;

[0016] Figure 4 This is a partial isometric structural diagram of the connection between the conical platform and the tie rod in this utility model;

[0017] Figure 5 This is an isometric structural diagram of the fit between the internal hexagonal bolt and the anti-loosening nut in this utility model;

[0018] The following are labels in the attached diagram: 1. Tie rod; 2. Lifting ring; 3. Sleeve; 4. Hinge seat; 5. Hook; 6. Conical platform; 7. U-shaped connecting frame; 8. Socket head bolt; 9. Locking nut; 10. Adapter seat; 11. Positioning groove; 12. Rounded corner. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] Example

[0021] Please see Figures 1-5This utility model discloses an automatic external support centering lifting device, comprising a pull rod 1 and a sleeve 3. A lifting ring 2 is provided at the top of the pull rod 1, and a conical platform 6 is fixedly connected to the bottom of the pull rod 1. The sleeve 3 is movably fitted onto the pull rod 1, and a 13 is integrally connected to the top of the sleeve 3. Three sets of hinge seats 4 are equidistantly arranged in a ring on the lower outer wall of the sleeve 3. Each of the three sets of hinge seats 4 is rotatably connected to a hook 5. The hook 5 is L-shaped, and the bottom of the hook 5 is an upwardly inclined slope. The inner sides of the three sets of hooks 5 abut against the outer wall of the conical platform 6. In use, the conical platform 6 and the hook 5 are engaged... When the conical platform 6 moves upward or downward, the hook 5 can automatically open or retract. The conical platform 6 applies external support force to open the hook 5, making the hook 5 more firmly and stably clamped to the inner hole of the workpiece. This lifting method makes the clamping more secure and stable when lifting disc-shaped parts, engine housing parts with a central through hole, and relatively balanced parts such as automobile brake hubs, engine flywheels, and engine flywheel housings. The self-tightening and loosening of the hook 5 makes the lifting tool more convenient to use.

[0022] The hinge seat 4 includes a U-shaped connecting frame 7, which is fixedly connected to the outer wall of the sleeve 3. An internal hex bolt 8 is inserted into the U-shaped connecting frame 7, and a lock nut 9 is screwed onto one end of the internal hex bolt 8. The top of the hook 5 has a through hole, and the hook 5 is rotatably connected to the U-shaped connecting frame 7 through the cooperation of the internal hex bolt 8 and the lock nut 9 is pressed onto the U-shaped connecting frame 7. The hook 5 is rotatably connected to the U-shaped connecting frame 7 through the cooperation of the internal hex bolt 8 and the lock nut 9. If the hook 5 is damaged, the lock nut 9 can be unscrewed from the internal hex bolt 8 and the internal hex bolt 8 can be pulled out to disassemble the hook 5, which facilitates the subsequent replacement of the damaged hook 5.

[0023] The top of the pull rod 1 is rotatably connected to the adapter seat 10, and the lifting ring 2 is rotatably sleeved on the adapter seat 10. During hoisting, the rotation of the adapter seat 10 and the lifting ring 2 can improve the flexibility of the lifting ring 2, so that the lifting ring 2 can rotate when subjected to force, thus avoiding damage to the lifting ring 2 due to force.

[0024] Three sets of positioning grooves 11 are equidistantly arranged in a ring on the outer wall of the conical platform 6. The inner sides of the three sets of hooks 5 abut against the three sets of positioning grooves 11 respectively. By setting the positioning grooves 11, the hooks 5 can be limited to prevent them from swinging in the tangential direction to the outer wall of the conical platform 6 during hoisting, thereby improving the stability of hoisting.

[0025] The sleeve 3 is movably fitted onto the pull rod 1 through a clearance fit; the clearance fit between the sleeve 3 and the pull rod 1 allows the sleeve 3 to slide freely on the pull rod 1.

[0026] The edges where the pull rod 1 connects to the conical platform 6, as well as the inner corners of the hook 5 and the upper and lower edges of the conical platform 6, are all provided with rounded corners 12; by providing rounded corners 12, the connection, corners and edges can be made smoother.

[0027] The working principle of this utility model of an automatic external support centering lifting device is as follows: Initially, the hook 5 rests against the conical platform 6 under the action of gravity. When lifting the workpiece, the lifting ring 2 is attached to the lifting machinery. The sleeve 3 is lifted by hand through 13, causing the sleeve 3 to move the hook 5 upward along the conical platform 6. At this time, the outer support diameter of the hook 5 will decrease. Then, the hook 5 is inserted into the inner hole of the workpiece. Then, the sleeve 3 is released. Under the action of gravity, the sleeve 3 slides downward along the tie rod 1, and the hook 5 moves downward along the conical platform 6. This causes the outer diameter of the hook 5 to increase, allowing the hook 5 to grip the workpiece. Then, preparations are made for lifting. At the start of lifting, the lifting ring 2 pulls the tie rod 1 and the conical platform 6 upward, causing the conical platform 6 to continuously apply external support force to the hook 5, thereby firmly locking the hook 5 into the inner hole of the workpiece and making the clamping more secure. After the lifting is completed, the lifting ring 2 is released. Under the action of gravity, the tie rod 1, the lifting ring 2, and the conical platform 6 will move downward, thereby reducing the outer diameter of the hook 5 and causing the hook 5 to loosen its grip, allowing the workpiece to be removed.

[0028] The automatic external support centering lifting device of this utility model has common mechanical methods in terms of installation, connection or setting. Any method that can achieve its beneficial effect can be implemented.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic centering spreader, characterized in that, Includes lifting components and hook components; The lifting component includes a tie rod (1), a lifting ring (2) is provided at the top of the tie rod (1), and a conical platform (6) is fixedly connected to the bottom of the tie rod (1). The hook component includes a sleeve (3), which is movably mounted on the pull rod (1). The top of the sleeve (3) is integrally connected with a 13. Three sets of hinge seats (4) are provided in a ring at equal intervals on the lower side of the outer wall of the sleeve (3). Each of the three sets of hinge seats (4) is rotatably connected with a hook (5). The hook (5) is L-shaped, and the bottom end of the hook (5) is an upwardly inclined slope. The inner sides of the three sets of hooks (5) abut against the outer wall of the conical platform (6).

2. The automatic external support centering lifting device as described in claim 1, characterized in that, The hinge seat (4) includes a U-shaped connecting frame (7), which is fixedly connected to the outer wall of the sleeve (3). An internal hex bolt (8) is inserted into the U-shaped connecting frame (7), and a lock nut (9) is screwed onto one end of the internal hex bolt (8). The top of the hook (5) has a through hole, and the hook (5) is rotatably connected to the U-shaped connecting frame (7) through the through hole and the internal hex bolt (8). The lock nut (9) is pressed onto the U-shaped connecting frame (7).

3. The automatic external support centering lifting device as described in claim 2, characterized in that, The top of the pull rod (1) is rotatably connected to the adapter (10), and the lifting ring (2) is rotatably sleeved on the adapter (10).

4. The automatic external support centering lifting device as described in claim 3, characterized in that, The conical platform (6) has three sets of positioning grooves (11) equidistantly arranged in a ring on its outer wall, and the inner sides of the three sets of hooks (5) abut against the three sets of positioning grooves (11).

5. An automatic external support centering lifting device as described in claim 4, characterized in that, The sleeve (3) is movably fitted onto the pull rod (1) by means of clearance fit.

6. The automatic external support centering lifting device as described in claim 5, characterized in that, The edges of the connection between the tie rod (1) and the conical platform (6), as well as the inner corners of the hook (5) and the upper and lower edges of the conical platform (6), are all provided with rounded corners (12).

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