Tool for disassembling inner hole bearing

Abstract

The utility model discloses a tool for disassembling an inner hole bearing, and belongs to the technical field of bearing disassembling devices. The utility model discloses a tool for disassembling an inner hole bearing. The tool comprises supporting legs which are symmetrically arranged; the cross beam is fixedly connected to the supporting legs; the screw rod is rotationally connected to the cross beam; the pull claw disc is connected to the screw rod; the multiple groups of pull claws are rotationally connected to the pull claw disc; and the pushing part is fixedly connected to the bottom of the lead screw, and the pushing part abuts against the pull claw. A thrust nut is rotationally connected to the cross beam, and the thrust nut is matched with the lead screw; the inner hole bearing is disassembled through the device, a hydraulic drawing device is not needed for disassembling the inner hole bearing, the device is convenient to operate and simple in structure, and the disassembling efficiency of the inner hole bearing is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing disassembly devices, in particular to a tool for disassembling an inner-hole bearing. Background Art

[0002] In equipment maintenance work, it is often necessary to disassemble inner-hole bearings. Since the fit between the bearing and the bearing hole usually has an interference amount, the disassembly process is relatively laborious. Especially for small-diameter bearings and bearings installed in blind holes, it is difficult to disassemble them using existing standard tools. Traditional disassembly methods, such as using gas welding cutting, arc welding cutting, or prying with a crowbar, are not only time-consuming and laborious, but also easily damage the bearing and the workpiece. Therefore, the disassembly tool for inner-hole bearings needs to have sufficient mechanical properties and precise control capabilities to ensure the safety and effectiveness of the disassembly process.

[0003] With the progress of industrial technology, the demand for more efficient and safer disassembly tools is increasing day by day. At present, there are various tools for disassembling inner-hole bearings on the market. Among them, the relatively common one is the hydraulic puller. The hydraulic puller uses the hydraulic principle to generate a powerful pulling force and is suitable for the disassembly of large bearings. However, its structure is complex, the operation is inconvenient, and the disassembly efficiency needs to be further improved. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the above background art, and to propose a tool for disassembling an inner-hole bearing.

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

[0006] A tool for disassembling an inner-hole bearing, comprising:

[0007] Support feet symmetrically arranged;

[0008] A cross beam fixedly connected to the support feet;

[0009] A lead screw rotatably connected to the cross beam;

[0010] A claw disc connected to the lead screw;

[0011] Multiple groups of claws rotatably connected to the claw disc;

[0012] A pushing part fixedly connected to the bottom of the lead screw, and the pushing part abuts against the claw.

[0013] Preferably, a thrust nut is rotatably connected to the cross beam, and the thrust nut matches the lead screw.

[0014] Preferably, a rotating rod is connected to the top of the lead screw.

[0015] Further, a limiting block is fixedly connected to the rotating rod, and the diameter of the limiting block is larger than that of the rotating rod.

[0016] Preferably, the pushing part is a conical block.

[0017] Further, a first bolt is connected to the claw disc, and the claw is rotatably connected to the first bolt.

[0018] Furthermore, a conical surface is provided at the bottom of the claw.

[0019] Preferably, a second bolt is connected to the support foot, and the second bolt abuts against the cross beam.

[0020] Compared with the prior art, the present utility model provides a tool for disassembling an inner hole bearing, having the following beneficial effects:

[0021] Parts not involved in this device are the same as or can be implemented using the prior art. With this device, the present utility model disassembles the inner hole bearing, eliminating the need to use a hydraulic puller for disassembly. Moreover, this device is convenient to operate, has a simple structure, and effectively improves the disassembly efficiency of the inner hole bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural view of a tool for disassembling an inner hole bearing proposed by the present utility model Figure 1 ;

[0023] Figure 2 is a schematic structural view of a tool for disassembling an inner hole bearing proposed by the present utility model Figure 2 ;

[0024] Figure 3 is a schematic structural connection view of the lead screw and the claw disc in a tool for disassembling an inner hole bearing proposed by the present utility model.

[0025] In the figure: 1, support foot; 101, second bolt; 2, cross beam; 3, lead screw; 301, rotating rod; 3011, limiting block; 4, thrust nut; 5, claw disc; 501, first bolt; 6, claw; 601, conical surface; 7, pushing part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Embodiment:

[0028] Refer to Figures 1 - 3 , a tool for disassembling an inner hole bearing, comprising:

[0029] Symmetrically arranged supporting feet 1;

[0030] Cross beam 2, fixedly connected to the supporting feet 1;

[0031] Lead screw 3, rotatably connected to the cross beam 2;

[0032] Claw chuck 5, connected to the lead screw 3;

[0033] Multiple groups of claws 6, rotatably connected to the claw chuck 5;

[0034] Pushing part 7, fixedly connected to the bottom of the lead screw 3, and the pushing part 7 abuts against the claw 6.

[0035] A thrust nut 4 is rotatably connected to the cross beam 2, and the thrust nut 4 matches the lead screw 3.

[0036] The top of the lead screw 3 is connected with a rotating rod 301.

[0037] A limiting block 3011 is fixedly connected to the rotating rod 301, and the diameter of the limiting block 3011 is larger than the diameter of the rotating rod 301.

[0038] The pushing part 7 is a conical block.

[0039] Refer to Figure 3 , by setting the pushing part 7 as a conical block, it is convenient for the lead screw 3 to move downward to push the claw 6 out.

[0040] A first bolt 501 is connected to the claw chuck 5, and the claw 6 is rotatably connected to the first bolt 501.

[0041] A conical surface 601 is arranged at the bottom of the claw 6.

[0042] Refer to Figure 1 , Figure 3 , by setting the bottom of the claw 6 as an inclined surface with an arc, the claw 6 can be more closely attached to the inner hole bearing, making it more convenient to disassemble the inner hole bearing.

[0043] A second bolt 101 is connected to the supporting foot 1, and the second bolt 101 abuts against the cross beam 2.

[0044] Refer to Figures 1 - 3 , before use, place the inner hole bearing to be disassembled in an appropriate position, manually rotate the rotating rod 301, which will drive the lead screw 3 to rotate, adjust the length of the lead screw 3 by rotating the lead screw 3, when the lead screw 3 rotates and moves downward, the lead screw 3 will also drive the pushing part 7 to move downward synchronously. When the pushing part 7 moves downward a certain distance, the pushing part 7 will squeeze the claw 6 to extend, so that it can adapt to the depth dimension of the inner hole bearing;

[0045] After the preparation is completed, install the support feet 1 on both sides of the cross beam 2, and tighten the second bolt 101 to fix the support feet 1.

[0046] Refer to Figures 1 - 2 , during use, align the pulling claws 6 with the edge of the inner ring of the inner hole bearing. By rotating the rotating rod 301, the pushing part 7 moves downward. The pushing part 7 squeezes the supporting pulling claws 6, causing the pulling claws 6 to open outwards and closely fit the inner ring of the inner hole bearing.

[0047] Use a wrench to rotate the thrust nut 4 to the right, driving the pulling claws 6 and the inner hole bearing to move upward together. As the gap under the inner hole bearing increases, because a conical surface 601 is provided at the bottom of the pulling claws 6, when rotating the pushing part 7 again, the more strenuous point is also greater and more intense, enabling the pulling claws 6 to closely fit on the inner ring of the bearing.

[0048] When rotating the thrust nut 4, the pulling claws 6 drive the inner ring of the inner hole bearing to move upward, making a relative movement with the support feet 1 on the cross beam 2, thereby gradually disassembling the inner hole bearing from the workpiece.

[0049] It should be noted that during the operation process, force should be applied slowly and evenly to avoid damaging the inner hole bearing or the shaft.

[0050] By using this device to disassemble the inner hole bearing, it is no longer necessary to use a hydraulic puller for disassembly. Moreover, this device is convenient to operate, has a simple structure, and effectively improves the disassembly efficiency of the inner hole bearing.

[0051] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A tool for disassembling an inner hole bearing, characterized in that, Including: Support feet (1) symmetrically arranged; Cross beam (2), fixedly connected to the support feet (1); Lead screw (3), rotatably connected to the cross beam (2); Claw disc (5), connected to the lead screw (3); Multiple groups of claws (6), rotatably connected to the claw disc (5); Pushing part (7), fixedly connected to the bottom of the lead screw (3), and the pushing part (7) abuts against the claw (6).

2. The tool for disassembling an inner hole bearing according to claim 1, characterized in that, A thrust nut (4) is rotatably connected to the cross beam (2), and the thrust nut (4) matches the lead screw (3).

3. A tool for disassembling an inner hole bearing according to claim 1, characterized in that, The top of the lead screw (3) is connected with a rotating rod (301).

4. A tool for disassembling an inner hole bearing according to claim 3, characterized in that, A limiting block (3011) is fixedly connected to the rotating rod (301), and the diameter of the limiting block (3011) is larger than the diameter of the rotating rod (301).

5. A tool for disassembling an inner hole bearing according to claim 1, characterized in that, The pushing part (7) is a conical block.

6. A tool for disassembling an inner hole bearing according to claim 5, characterized in that, A first bolt (501) is connected to the claw disc (5), and the claw (6) is rotatably connected to the first bolt (501).

7. A tool for disassembling an inner hole bearing according to claim 6, characterized in that, A conical surface (601) is arranged at the bottom of the claw (6).

8. A tool for disassembling an inner hole bearing according to claim 1, characterized in that, A second bolt (101) is connected to the support foot (1), and the second bolt (101) abuts against the cross beam (2).

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