Device for hoisting bearing

Abstract

The utility model discloses a device for hoisting a bearing, which is characterized in that the device comprises a hoisting rod, an upper three-fork plate is sleeved on a hoisting rod shaft of the hoisting rod, and a plurality of hoisting hooks are fixed on the upper three-fork plate at intervals; a hook-shaped structure protruding outwards is arranged at the tail end of the lifting hook; a limiting sleeve penetrates through the tail end of a suspender shaft of the suspender, and a lower three-fork plate is arranged at the lower end of the limiting sleeve; the upper three-fork plate moves up and down along the suspender shaft, and the downward moving end point of the upper three-fork plate is limited through the limiting sleeve; the upward moving end point of the upper three-fork plate is limited through a limiting terminal at the top of the hanging rod. The lifting hook hooks the inner ring of the bearing to fix the bearing, the length of the lifting hook can be suitable for bearing specifications of different sizes, meanwhile, the balance of the bearing is guaranteed, the horizontal state is kept, the bearing disassembly and assembly quality can be achieved, meanwhile, personnel operation is convenient, and lifting is easy.

Description

Technical Field

[0001] The utility model relates to the field of hot rolling finishing work roll manufacturing, in particular to a device for realizing bearing lifting. Background Art

[0002] Traditional bearing disassembly and assembly uses two lifting rings to fix diagonally on the bearing cage, uses a shackle to screw on the lifting ring, and then uses a crane to lift the bearing to disassemble and assemble. Traditional disassembly and assembly methods are prone to deformation of the cage, damage to the lifting ring, causing the bearing to fall, and unbalanced bearings that are difficult to disassemble, resulting in low work efficiency and easy damage to the bearing.

[0003] Alternatively, the bearing may be lifted by grabbing the outside of the bearing with a mechanical claw, as described in Chinese patent application 202220641270.0. However, such a lifting method is prone to wear caused by squeezing during the grasping of the bearing. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a device for lifting bearings.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0006] A device for lifting a bearing, comprising:

[0007] A suspension rod, wherein an upper three-prong plate is sleeved on the suspension rod shaft of the suspension rod, and a plurality of suspension hooks are fixed on the upper three-prong plate at intervals;

[0008] The end of the hook is provided with a hook-shaped structure protruding outwards;

[0009] A limiting sleeve is passed through the end of the suspension rod shaft of the suspension rod, and a lower tripod plate is arranged at the lower end of the limiting sleeve;

[0010] The upper three-pronged plate moves up and down along the suspension rod axis, and the end point of the upper three-pronged plate moving downward is limited by the limiting sleeve;

[0011] The end point of the upper tripod plate moving upward is limited by a limit terminal at the top of the suspension rod.

[0012] In a preferred embodiment of the present utility model, a lifting ring is provided on the limit terminal.

[0013] In a preferred embodiment of the present utility model, an upper limit plane is provided at the upper end of the limiting sleeve, and the upper limit plane is in limiting contact with the boom shaft through the first supporting portion.

[0014] In a preferred embodiment of the present utility model, a lower limiting plane is provided at the lower end of the limiting sleeve, and the lower limiting plane contacts the upper surface of the lower tripod plate through the second supporting portion.

[0015] In a preferred embodiment of the present invention, the hook-shaped structure includes an inclined guide surface, and a hook-shaped portion is arranged at the bottom end of the guide surface toward the periphery.

[0016] In a preferred embodiment of the present invention, the hook is fixed to the upper tripod plate by a threaded fastener with a cotter pin.

[0017] In a preferred embodiment of the present invention, the threaded fastener includes a matching bolt, a nut and a gasket for shock absorption, and the relative tightening of the nut on the bolt is controlled by the cotter pin.

[0018] In a preferred embodiment of the present invention, a groove corresponding to the lifting arm of the hook is provided on the radial surface of the lower tripod plate.

[0019] In a preferred embodiment of the present utility model, the hook comprises a first hook and a second hook symmetrically arranged along the suspension rod.

[0020] The beneficial effects of the utility model are:

[0021] The utility model fixes the bearing by hooking the inner ring of the bearing through the hook. The length of the hook can be suitable for bearings of different sizes, while ensuring the balance and horizontal state of the bearing. The bearing disassembly and assembly quality can be achieved, and it is convenient for personnel to operate and easy to hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] like Figure 1 The device shown in the figure for lifting a bearing comprises a suspension rod 1 for bearing a load, an upper tripod plate 2 is sleeved on the suspension rod shaft 11 of the suspension rod 1, and a plurality of suspension hooks 3 are fixed at intervals on the upper tripod plate 2, and 2, 3 or 4 hooks can be arranged as needed.

[0026] In the embodiment, the first hook and the second hook are symmetrically arranged.

[0027] The hook 3 is fixed to the upper tripod plate 2 by a threaded fastener with a cotter pin 9, the threaded fastener includes a matching bolt 6, a nut 8 and a gasket 7 for shock absorption, and the cotter pin 9 controls the relative tightening of the nut 8 on the bolt 6. The nut 8 is locked by a locking wrench 5.

[0028] The end of the hook 3 is provided with a hook-shaped structure 21 protruding outward, and the hook-shaped structure 21 includes an inclined guide surface 211 , and a hook-shaped portion 212 is provided at the bottom end of the guide surface 211 toward the outer periphery.

[0029] The end of the boom shaft 11 of the boom 1 passes through the limiting sleeve 10 , and a lower tripod plate 4 is arranged at the lower end of the limiting sleeve 10 .

[0030] An upper limit plane 101 is provided at the upper end of the limiting sleeve 10 , and the upper limit plane 101 is in limiting contact with the boom shaft 11 of the boom 1 through the first supporting portion 1011 .

[0031] A lower limiting plane 102 is provided at the lower end of the limiting sleeve 10 , and the lower limiting plane 102 contacts the upper surface of the lower tripod plate 4 through the second supporting portion 1021 .

[0032] The upper tripod plate 2 moves up and down along the boom shaft 11 of the boom 1 , and the end point of the upper tripod plate 2 moving downward is limited by the limiting sleeve 10 .

[0033] The end point of the upper tripod plate 2 moving upward is limited by a limit terminal 12 at the top of the suspension rod 1 , and a suspension ring 13 is provided on the limit terminal 12 .

[0034] A slot 41 corresponding to the arm of the hook 3 is provided on the radial surface of the lower tripod plate 4 .

[0035] 1 represents the suspension rod used to limit the weight of the bearing, 2 represents the upper tripod plate used to fix the hook. 3 represents the hook used to hook the bottom surface of the inner ring of the bearing to prevent the bearing from falling, 4 represents the lower tripod plate used to support the hook, and 5 represents the locking wrench used to fix the position. 6 represents the hexagonal head screw with hole for reaming the hole, 7 represents the flat washer-C grade φ16*90, 8 represents the type 1 hexagonal nut-C grade M16, and 9 represents the cotter pin 3.2*25. 6 / 7 / 8 / 9 are combined into a bolt set for fixing the hook to the upper tripod plate.

[0036] The utility model can be used for disassembling and assembling bearings, and can be used in conjunction with a suspension rod, an upper three-prong plate, a suspension hook, a lower three-prong plate, and a locking wrench. It can realize the disassembly and assembly of bearings of different specifications, and can also ensure the quality of bearing disassembly, assembly, and lifting. At the same time, it is convenient for personnel to operate, and can also improve the efficiency of bearing disassembly and assembly.

[0037] The specific implementation is as follows:

[0038] 1. Hook the bearing: Use a shackle to connect the wire rope and the eye 13 of the sling 1, and lift the sling body into the inner ring of the bearing. After the sling is lowered to the ground, loosen the locking wrench 5 to loosen the upper tripod plate 2 and no longer fix it on the sling 1. As the gravity falls, the hook 3 is opened due to the falling of the upper tripod plate 2, and the hook-shaped part 212 at the tail hooks the inner ring of the bearing (not shown in the figure).

[0039] 2. Lift the bearing: operate the lifting equipment to slightly lift the boom 1, so that the bottom tripod 4 leaves the ground, rotate the lower tripod plate 4 so that its slot and hook 3 no longer correspond to each other, and then operate the lifting equipment to lift the boom 1, together with the entire bearing.

[0040] 3. Lower the bearing: operate the lifting equipment to lift the bearing to the lowering position, lower the lifting device, and place two sleepers at the lowering position of the bearing so that the bearing does not press the hook of the hook 3 after it falls.

[0041] After the lower tripod plate 4 drops to the bottom, rotate the lower tripod plate 4 so that its slot 41 corresponds to the hook 3, then retract the hook 3, raise the suspension rod 1, and when the hook 3 is engaged in the slot 41 of the lower tripod plate 4, tighten the locking wrench 5 and adjust the entire sling away from the bearing.

[0042] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0043] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A device for lifting a bearing, characterized in that: include: A suspension rod, wherein an upper three-prong plate is sleeved on the suspension rod shaft of the suspension rod, and a plurality of suspension hooks are fixed on the upper three-prong plate at intervals; The end of the hook is provided with a hook-shaped structure protruding outwards; A limiting sleeve is passed through the end of the suspension rod shaft of the suspension rod, and a lower tripod plate is arranged at the lower end of the limiting sleeve; The upper three-pronged plate moves up and down along the suspension rod axis, and the end point of the upper three-pronged plate moving downward is limited by the limiting sleeve; The end point of the upper tripod plate moving upward is limited by a limit terminal at the top of the suspension rod.

2. A device for lifting bearings as claimed in claim 1, characterized in that: A lifting ring is arranged on the limit terminal.

3. A device for lifting bearings as claimed in claim 1, characterized in that: An upper limit plane is arranged at the upper end of the limiting sleeve, and the upper limit plane is in limiting contact with the suspension rod shaft through the first supporting portion.

4. A device for lifting bearings as claimed in claim 1, characterized in that: A lower limiting plane is arranged at the lower end of the limiting sleeve, and the lower limiting plane contacts the upper surface of the lower tripod plate through the second supporting portion.

5. The device for lifting bearings according to claim 1, characterized in that: The hook-shaped structure comprises an inclined guide surface, and a hook-shaped portion is arranged at the bottom end of the guide surface toward the periphery.

6. A device for lifting bearings as claimed in claim 1, characterized in that: The hook is fixed to the upper tripod plate by a threaded fastener with a split pin.

7. A device for lifting bearings as claimed in claim 6, characterized in that: The threaded fastener comprises a matching bolt, a nut and a gasket for shock absorption, and the relative tightening of the nut on the bolt is controlled by the cotter pin.

8. The device for lifting a bearing according to claim 1, characterized in that: A slot corresponding to the lifting arm of the hook is arranged on the radial surface of the lower tripod plate.

9. A device for lifting bearings as claimed in claim 1, characterized in that: The hook comprises a first hook and a second hook symmetrically arranged along the suspension rod.

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