Special clamp for hoisting three-jaw shaft sleeve

Abstract

The invention discloses a special clamp for hoisting a three-jaw shaft sleeve. The special clamp comprises a lifting lug, a connecting rod I, a connecting rod II, a positioning disc and clamping jaws, the lifting lug is connected with the first connecting rod, the first connecting rod is connected with the second connecting rod through the connecting bolt, the middle of the second connecting rod is connected with the positioning disc, and the end of the second connecting rod is connected with the three clamping jaws. The special clamp applied to lifting of the cylindrical shaft sleeve spare parts can improve the working efficiency, reduce the labor intensity of operators, and reduce potential safety hazards and the probability of safety accidents.

Description

Technical Field

[0001] The invention relates to a field, and in particular to a three-claw shaft sleeve lifting special clamp. Background Art

[0002] Cylindrical sleeves (such as KOCKS roller sleeves, etc.) are not suitable for manual handling. In addition, the sleeves are heavy and have no fulcrums, so the operation efficiency is low when using general lifting equipment for lifting. Operators are prone to drop the sleeves during lifting, causing safety accidents. During the operation, it is impossible to use lifting equipment such as slings to pass through the middle hole of the sleeve for lifting.

[0003] Therefore, it is necessary to develop new types of special lifting fixtures to improve efficiency. Summary of the invention

[0004] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a three-claw shaft sleeve lifting special clamp, which is used for lifting cylindrical shaft sleeve spare parts. It can improve work efficiency and reduce the labor intensity of operators, and reduce safety hazards and the probability of safety accidents.

[0005] Technical solution: A three-jaw shaft sleeve lifting special clamp of the present invention is characterized in that it includes a lifting ear, a connecting rod 1, a connecting rod 2, a positioning plate and a clamp; the lifting ear is connected to the connecting rod 1, the connecting rod 1 is connected to the connecting rod 2 through a connecting bolt, the middle part of the connecting rod 2 is connected to the positioning plate, and the two ends of the connecting rod are connected to the clamp, and the number of the clamps is 3.

[0006] Wherein, the lifting lug is connected to the external crane hook head, and the inner hole of the lifting lug is designed to be a "pear-shaped" structure.

[0007] The radius of the upper part of the lifting ear is 50 mm, the thickness is 20 mm, and all edges are rounded with R5 corners; a connecting hole is designed at the lower part of the lifting ear, and the hole diameter is 17 mm.

[0008] Among them, the length of the connecting rod 1 is 280mm, the width is 30mm, the thickness is 10mm, the hole spacing is 250mm, the hole diameter is 17mm, and the connecting rod 1 connects the lifting ear and the connecting rod 2.

[0009] Wherein, the connecting rod 2 is designed to be a "7"-shaped structure with an included angle of 110°.

[0010] Wherein, the thickness of the connecting rod 2 is 20 mm, and the diameter of the connecting hole is 17 mm.

[0011] The outer diameter of the positioning plate is 300 mm, the thickness is 20 mm, three grooves with a width of 21 mm are opened at 120° intervals, and a mounting hole for welding and fixing the second connecting rod is provided at a position with a diameter of 160 mm.

[0012] Wherein, one side of the positioning plate is a positioning surface, and the other side is a location of a welding mounting hole, which is used to connect and fix the entire fixture.

[0013] The length of the clamp is 120 mm, the width is 50 mm, the depth of the middle groove is 5 mm, and the clamp is equipped with anti-slip rubber.

[0014] When in use, a lifting ear is designed at the uppermost part of the clamp, the lifting ear is connected to the connecting rod one by using a reamed bolt, the connecting rod two is connected to the connecting rod one by using a reamed bolt, the middle part of the connecting rod two is connected to the positioning plate, and a clamping claw is installed at the lower part of the connecting rod two. When the lifting ear moves upward, the clamping claw moves outward to clamp the shaft sleeve.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention is a special clamp used for lifting cylindrical sleeve spare parts, which can improve work efficiency and reduce the labor intensity of operators, and reduce safety hazards and the probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] In the figure, 1 is a lifting ear; 2 is a connecting rod 1; 3 is a connecting bolt; 4 is a connecting rod 2; 5 is a positioning plate; and 6 is a clamping claw. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0019] The three-claw shaft sleeve lifting special clamp of the present invention comprises a lifting ear 1, a connecting rod 1 2, a connecting rod 2 4, a positioning plate 5 and a clamping claw 6; the lifting ear 1 is connected to the connecting rod 1 2, the connecting rod 1 2 is connected to the connecting rod 2 4 through a connecting bolt 3, the middle part of the connecting rod 2 4 is connected to the positioning plate 5, and the end of the connecting rod 2 4 is connected to the clamping claw 6, and the number of the clamping claws 6 is 3.

[0020] The lifting lug 1 of the present invention is connected to the external driving hook head, and the inner hole shape of the lifting lug 1 is designed to be a "pear-shaped" structure. The upper radius size of the lifting lug 1 is 50mm, the thickness is 20mm, and all edges are rounded R5; the lower part of the lifting lug 1 is designed with a connecting hole, and the hole diameter is 17mm. The length of the connecting rod 1 2 is 280mm, the width is 30mm, the thickness is 10mm, the hole spacing is 250mm, and the hole diameter is 17mm. The connecting rod 1 2 connects the lifting lug 1 and the connecting rod 2 4. The connecting rod 2 4 is designed to be a "7"-shaped structure with an angle of 110°. The thickness of the connecting rod 2 4 is 20mm, and the diameter of the connecting hole is 17mm. The outer diameter of the positioning plate 5 is 300mm, the thickness is 20mm, and three grooves with a width of 21mm are opened at 120°. At the position of 160mm in diameter, the mounting hole of the connecting rod 2 4 is welded and fixed. One side of the positioning plate 5 is a positioning surface, and the other side is the position of the welding mounting hole, which is used to connect and fix the entire clamp. The length of the clamping jaw 6 is 120 mm, the width is 50 mm, the depth of the middle groove is 5 mm, and the clamping jaw 6 is installed with anti-skid rubber skin.

[0021] When in use, a lifting ear 1 is designed at the uppermost part of the clamp, the lifting ear 1 is connected to the connecting rod 2 by using a reaming bolt, the connecting rod 2 4 is connected to the connecting rod 2 by using a reaming bolt, the middle part of the connecting rod 2 4 is connected to the positioning plate 5, and a clamping claw 6 is installed at the lower part of the connecting rod 2 4. When the lifting ear 1 moves upward, the clamping claw 6 moves outward to clamp the shaft sleeve.

[0022] The present invention is designed to design a self-clamping, self-centering three-claw shaft sleeve special clamp based on the outer structure of the shaft sleeve, with the middle circular hole of the shaft sleeve as the clamping position and a connecting rod mechanism that uses the shaft sleeve's own weight for self-clamping. The various components of the clamp are connected by reaming bolts, and the nuts are self-locking nuts. Since the clamp uses the shaft sleeve's own weight for self-clamping, it is designed as a connecting rod mechanism, and the movement of the connecting rod drives the clamp arm to clamp the catheter.

[0023] The invention is a special clamp for lifting cylindrical shaft sleeve spare parts, which can improve work efficiency, reduce the labor intensity of operators, and reduce safety hazards and the probability of safety accidents.

Claims

1. A three-claw shaft sleeve lifting fixture, characterized in that: The invention comprises a lifting ear (1), a connecting rod 1 (2), a connecting rod 2 (4), a positioning plate (5) and a clamping claw (6); the lifting ear (1) is connected to the connecting rod 1 (2); the connecting rod 1 (2) is connected to the connecting rod 2 (4) via a connecting bolt (3); the middle part of the connecting rod 2 (4) is connected to the positioning plate (5); the end part of the connecting rod 2 (4) is connected to the clamping claw (6); and the number of the clamping claws (6) is 3.

2. The three-claw shaft sleeve lifting fixture according to claim 1 is characterized in that: The lifting lug (1) is connected to the external crane hook head, and the inner hole of the lifting lug (1) is designed to be a "pear-shaped" structure.

3. The three-claw shaft sleeve lifting fixture according to claim 2 is characterized in that: The upper radius of the lifting ear (1) is 50 mm, the thickness is 20 mm, and all edges are rounded to R5. A connecting hole is designed at the lower part of the lifting ear (1), and the hole diameter is 17 mm.

4. The three-claw shaft sleeve lifting fixture according to claim 1 is characterized in that: The connecting rod 1 (2) has a length of 280 mm, a width of 30 mm, a thickness of 10 mm, a hole spacing of 250 mm, and a hole diameter of 17 mm. The connecting rod 1 (2) connects the lifting ear (1) and the connecting rod 2 (4).

5. The three-claw shaft sleeve lifting fixture according to claim 1 is characterized in that: The connecting rod 2 (4) is designed to be a "7"-shaped structure with an included angle of 110°.

6. The three-claw shaft sleeve lifting fixture according to claim 5 is characterized in that: The thickness of the connecting rod 2 (4) is 20 mm, and the diameter of the connecting hole is 17 mm.

7. The three-claw shaft sleeve lifting fixture according to claim 1 is characterized in that: The positioning plate (5) has an outer diameter of 300 mm and a thickness of 20 mm. It has three slots with a width of 21 mm at intervals of 120°. At the position of 160 mm in diameter, a mounting hole for welding and fixing the second connecting rod (4) is provided.

8. The three-claw shaft sleeve lifting fixture according to claim 7 is characterized in that: One side of the positioning plate (5) is a positioning surface, and the other side is a location for a welding mounting hole, which is used to connect and fix the entire clamp.

9. The three-claw shaft sleeve lifting fixture according to claim 1 is characterized in that: The length of the clamping jaw (6) is 120 mm, the width is 50 mm, the depth of the middle groove is 5 mm, and the clamping jaw (6) is installed with anti-skid rubber skin.

10. The three-claw shaft sleeve lifting fixture according to any one of claims 1 to 9, characterized in that: When in use, a lifting ear (1) is designed at the uppermost part of the clamp, the lifting ear (1) is connected to the first connecting rod (2) by using a reaming bolt, the second connecting rod (4) is connected to the first connecting rod (2) by using a reaming bolt, the middle part of the second connecting rod (4) is connected to the positioning plate (5), the lower part of the second connecting rod (4) is equipped with a clamping claw (6), and when the lifting ear (1) moves upward, the clamping claw (6) moves outward to clamp the shaft sleeve.

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