Bearing dismounting device

Abstract

The utility model relates to the technical field of bearing dismounting, in particular to a bearing dismounting device which comprises a jackscrew rod, a tensioning cross beam and a bearing drag hook, an adjusting mechanism is arranged between the tensioning cross beam and the bearing drag hook, the bearing dismounting device comprises a tensioning cross arm, a tensioning rod, an adjusting ring and an adjusting rod, the two ends of the tensioning rod are connected with the tensioning cross beam and the tensioning cross arm through pin shafts respectively, and the adjusting ring is connected with the adjusting rod. The adjusting ring is arranged on the adjusting sleeve through a screw, the two sides of the adjusting ring are connected with one end of the adjusting rod through a pin shaft, and the other end of the adjusting rod is connected with the tensioning cross arm through a pin shaft. The cross beam has the advantages that the cross beam is short, and the overall size is reduced; 2, the adjusting mechanism is simple, the working efficiency is improved, and the manufacturing cost is low; and thirdly, the cross beam is solid and is prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing disassembly, and particularly relates to a bearing disassembly device. Background Technique

[0002] In industrial production, bearings are often used in rotating equipment. Bearings play an important role in the operation of equipment. Problems such as wear, reaching the service life, damage, and failure may occur during long-term operation of the bearings, and maintenance personnel need to replace the bearings. Since bearings often use interference fits, methods such as hot fitting and hammering are required during installation. Due to factors such as long-term interference fits, corrosion, and rust, it is difficult to disassemble the bearings during replacement. Often, they cannot be disassembled by methods such as hammering, and heat treatment or even gas welding cutting is required to damage them, resulting in difficult bearing replacement and wasting time, labor, and materials.

[0003] For example, the bearing disassembly device and its use method of a bearing type coupling with the patent number CN202210765444.9 include a cross beam. A threaded cylinder is fixedly connected to the central position of the cross beam. A threaded push rod is threadedly inserted into the threaded cylinder, and a nut is fixedly connected to the top end of the threaded push rod. For the bearing disassembly device of the bearing type coupling, when the bearing to be disassembled is embedded in the device and the outer ring of the bearing cannot be pulled out when the inner ring of the bearing is sleeved with a shaft rod and the outer ring of the bearing is embedded in the device, the sealing cover of the balls on the bearing can be disassembled first, and then the semi-circular inner chuck is inserted into the gap between the balls. At the same time, the pull rod is rotated 90 degrees, and both ends of the semi-circular inner chuck will be clamped with the edge of the groove on the surface of the inner ring of the bearing and the edge of the groove on the inner side of the outer ring of the bearing to fix and clamp the bearing. When the surface of the outer ring or the inner ring of the bearing to be disassembled is exposed, the bolt will penetrate through the connecting plate and be threadedly inserted into the threaded hole located below the hinge block.

[0004] However, this structure has the following disadvantages: First, the cross beam is too long, increasing the volume, and the adjustment mechanism is too complex, affecting the efficiency; second, the cross beam is hollow, and when the force is large, the cross beam is easily broken. Summary of the Invention

[0005] The purpose of the utility model is to provide a bearing disassembly device to solve the problems existing in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A bearing disassembly device includes a top screw rod 1, a tension cross beam 8, and a bearing hook 7. It is characterized in that: An adjustment mechanism is provided between the tension cross beam 8 and the bearing hook 7, including a tension cross arm 6, a tension rod 5, an adjustment ring 3, and an adjustment rod 4. Both ends of the tension rod 5 are respectively connected to the tension cross beam 8 and the tension cross arm 6 through pins. The adjustment ring 3 is provided on the adjustment sleeve 2 through screws, and both sides of the adjustment ring 3 are connected to one end of the adjustment rod 4 through pins. The other end of the adjustment rod 4 is connected to the tension cross arm 6 through a pin.

[0007] Preferably, the adjusting sleeve 2 is coaxial with the top screw rod 1, and a locking bolt 9 for fixing the adjusting sleeve 2 is provided on the tension beam 8.

[0008] Preferably, handles are provided at the top ends of the top screw rod 1 and the adjusting sleeve 2.

[0009] Preferably, a total of four tension rods 5 are symmetrically arranged on both sides of the top screw rod 1.

[0010] Preferably, the tension rod 5 is provided with a "U"-shaped long groove.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: First, the cross beam is shorter and the overall volume is reduced; second, the adjustment mechanism is simple, the work efficiency is improved, and the manufacturing cost is low; third, the cross beam is solid, avoiding the fracture of the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present utility model.

[0013] In the figure: 1, top screw rod; 2, adjusting sleeve; 3, adjusting ring; 4, adjusting rod; 5, tension rod; 6, tension cross arm; 7, bearing hook; 8, tension beam; 9, locking bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] Please refer to Figure 1 , the present utility model provides a technical solution: a bearing disassembly device, including a top screw rod 1, a tension beam 8 and a bearing hook 7. An adjustment mechanism is provided between the tension beam 8 and the bearing hook 7, including a tension cross arm 6, a tension rod 5, an adjustment ring 3 and an adjustment rod 4. The two ends of the tension rod 5 are respectively connected to the tension beam 8 and the tension cross arm 6 through pins. The adjustment ring 3 is provided on the adjusting sleeve 2 through screws, and both sides of the adjustment ring 3 are connected to one end of the adjustment rod 4 through pins. The other end of the adjustment rod 4 is connected to the tension cross arm 6 through a pin.

[0016] The adjusting sleeve 2 is coaxial with the top screw rod 1, and a locking bolt 9 for fixing the adjusting sleeve 2 is provided on the tension beam 8. The adjusting sleeve 2 can be rotated to move the adjustment ring 3 up and down, driving the bearing hook 7 to change its size.

[0017] Handles are provided at the top ends of the top screw rod 1 and the adjusting sleeve 2 for easy adjustment.

[0018] There are four tension rods 5 symmetrically arranged on both sides of the top screw rod 1. The tension rod 5 is provided with a "U"-shaped long groove, which increases the rigidity and reduces the weight.

[0019] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bearing disassembly device, comprising a jack screw (1), a tensioning beam (8) and a bearing hook (7), characterized in that: An adjustment mechanism is provided between the tensioning crossbeam (8) and the bearing hook (7), comprising a tensioning crossarm (6), a tensioning rod (5), an adjustment ring (3) and an adjustment rod (4); the two ends of the tensioning rod (5) are respectively connected to the tensioning crossbeam (8) and the tensioning crossarm (6) through a pin shaft; the adjustment ring (3) is arranged on the adjustment sleeve (2) through a screw, and the two sides of the adjustment ring (3) are connected to one end of the adjustment rod (4) through a pin shaft; the other end of the adjustment rod (4) is connected to the tensioning crossarm (6) through a pin shaft.

2. A bearing disassembly device according to claim 1, characterized in that: The adjusting sleeve (2) is coaxial with the top screw rod (1), and a locking bolt (9) for fixing the adjusting sleeve (2) is provided on the tensioning crossbeam (8).

3. A bearing disassembly device according to claim 1, characterized in that: The top ends of the jack screw rod (1) and the adjusting sleeve (2) are both provided with handles.

4. A bearing disassembly device according to claim 1, characterized in that: A total of four tension rods (5) are symmetrically arranged on both sides of the top screw rod (1).

5. A bearing disassembly device according to claim 1, characterized in that: The tension rod (5) is provided with a "U"-shaped long groove.

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