Bearing extractor

Abstract

The utility model discloses a bearing extractor which comprises a clamping jaw used for clamping a bearing and an impact sleeve assembly connected to the clamping jaw, the clamping jaw comprises a threaded rod and two jaw parts, the two jaw parts are rotatably connected to the impact sleeve assembly, the threaded rod is rotatably arranged in one jaw part in a penetrating mode, and the impact sleeve assembly is connected to the other jaw part in a penetrating mode. And the impact sleeve assembly is used for forming impact force to drive the clamping jaw to take out the bearing inertially, so that the damaged bearing can be taken out conveniently, and the bearing taking-out difficulty of an operator can also be reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical tool technology, and in particular to a bearing remover. Background Technology

[0002] When the bearings of a CNC machine tool are burned or excessively worn due to high temperature, they need to be replaced in time. However, during the process of removing the damaged bearing, the inner ring of the bearing is easy to fall off, making the bearing disassembly inconvenient. In addition, auxiliary tools such as drilling and tapping cannot be used in the limited space of the CNC machine tool. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a bearing extractor that facilitates the removal of damaged bearings and reduces the difficulty for operators in removing bearings.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] This utility model provides a bearing extractor, including a gripper for clamping a bearing and an impact sleeve assembly connected to the gripper; the gripper includes a threaded rod and two claw portions, the two claw portions are rotatably connected to the impact sleeve assembly, and the threaded rod is rotatably inserted through one claw portion and used to abut against the other claw portion to adjust the opening angle between the two claw portions; the impact sleeve assembly is used to generate an impact force to drive the gripper to inertially extract the bearing.

[0006] Furthermore, the impact sleeve assembly includes a connecting rod, a stop block, a mounting bracket, and an impact sleeve located between the stop block and the mounting bracket. The stop block and the mounting bracket are respectively connected to the connecting rod, the impact sleeve is slidably sleeved on the connecting rod, and the gripper is rotatably connected to the mounting bracket.

[0007] Furthermore, the mounting bracket includes a pin and two spaced support arms. One end of the two support arms is detachably rotatably connected to the end of the connecting rod away from the stop block via the pin. The grippers are inserted between the two support arms, and the middle parts of the two grippers are rotatably mounted to the other end of the two support arms via a hinge shaft.

[0008] Furthermore, one end of the threaded rod passes through one end of one of the claws and between the two support arms until it abuts against one end of the other claw.

[0009] Furthermore, the end of the claw facing away from the threaded rod has an arcuate spherical surface for inserting a ball groove into a bearing.

[0010] Furthermore, the stop block is fixed to the end of the connecting rod opposite to the mounting bracket; the outer diameter of the stop block is larger than the inner diameter of the impact sleeve.

[0011] Furthermore, the outer peripheral wall of the impact sleeve is provided with an anti-slip surface.

[0012] The technical solution provided by this utility model has the following beneficial effects:

[0013] When a bearing needs to be replaced, first rotate the threaded rod to close the two jaws, then insert the jaws into the damaged bearing. Next, rotate the threaded rod in the opposite direction to open the two jaws, allowing the jaws to grip the damaged bearing. The impact force generated by the impact sleeve assembly then drives the jaws to remove the bearing by inertia. This facilitates the removal of damaged bearings, improves the efficiency of bearing removal, reduces the difficulty for operators in removing bearings, and minimizes the impact of bearing removal on equipment precision. Attached Figure Description

[0014] Figure 1 The image shown is a first-view schematic diagram of the bearing remover in the embodiment;

[0015] Figure 2 The image shown is a second-view schematic diagram of the bearing remover in the embodiment. Detailed Implementation

[0016] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] Reference Figure 1 and Figure 2 This embodiment provides a bearing extractor for removing damaged bearings from CNC machine tools.

[0019] The bearing extractor of this embodiment includes a jaw 3 for gripping the bearing and an impact sleeve assembly 100 connected to the jaw 3.

[0020] The gripper 3 includes a threaded rod 32 and two claws 31. The two claws 31 are rotatably connected to the impact sleeve assembly 100, and the threaded rod 32 is rotatably inserted through one of the claws 31 and used to abut against the other claw 31 to adjust the opening angle between the two claws 31.

[0021] The impact sleeve assembly 100 is used to generate an impact force to drive the gripper 3 to remove the bearing by inertia.

[0022] In this embodiment, the impact sleeve assembly 100 includes a connecting rod 1, a stop block 5 located at the upper end of the connecting rod 1, a mounting bracket 4 located at the lower end of the connecting rod 1, and an impact sleeve 2 located between the stop block 5 and the mounting bracket 4.

[0023] The impact sleeve 2 is slidably sleeved on the connecting rod 1 to ensure that after the damaged bearing is clamped, the impact sleeve 2 is driven to slide up and down along the connecting rod 1 to repeatedly hit the stop block 5, thereby generating an impact force to drive the gripper 3 and the damaged bearing together to form an inertial motion, thereby gradually removing the damaged bearing from the CNC machine tool, while reducing the impact of disassembling the bearing on the accuracy of the CNC machine tool.

[0024] The stop block 5 is fixed to the upper end of the connecting rod 1 by screwing, welding or other fixed connection methods, and the outer diameter of the stop block 5 is larger than the inner diameter of the impact sleeve 2 to ensure that the impact sleeve 2 will not detach from the connecting rod 1.

[0025] The mounting bracket 4 includes a pin 42 and two spaced support arms 41. The upper ends of the two support arms 41 are detachably rotatably connected to the lower end of the connecting rod 1 via the pin 42. This detachable structure allows the bearing remover to be disassembled into two independent parts for easy storage after use. Of course, in other embodiments, the mounting bracket 4 can also be fixed to the connecting rod 1, but this does not allow for disassembly and storage.

[0026] The middle part of the two claws 31 is rotatably mounted to the other lower end of the two support arms 41 via the hinge shaft 33. The lower ends of the two claws 31 extend out of the mounting space 411 between the two support arms 41, and one end of the threaded rod 32 passes through the upper end of one of the claws 31 and through the mounting space 411 between the two support arms 41 until it abuts against the upper end of the other claw 31 to form a gripper structure. The opening angle between the lower ends of the two claws 31 can be adjusted by screwing the threaded rod 32 in and out.

[0027] When a bearing needs to be replaced, first rotate the threaded rod 32 to close the two claws 31, then insert the lower end of the gripper 3 into the damaged bearing, and then rotate the threaded rod 32 in the opposite direction to open the two claws 31 so that the lower end of the gripper 3 can clamp the damaged bearing. Then, the impact force generated by the impact sleeve assembly 100 drives the gripper 3 to remove the damaged bearing by inertia. This makes it easier to remove the damaged bearing, improves the bearing removal efficiency, reduces the difficulty of bearing removal for operators, and reduces the impact of bearing removal on equipment accuracy.

[0028] Furthermore, the mounting bracket 4 is rotatably mounted on the connecting rod 1 to ensure that the gripper 3 and the mounting bracket 4 rotate together within a certain rotation angle range, that is, the use angle of the gripper 3 can be flexibly adjusted, which makes it convenient to use in the limited space of the CNC machine tool.

[0029] In another preferred embodiment, such as Figure 1 As shown, the two claw portions 31, facing away from the lower end of the threaded rod 32, each have an arcuate spherical surface 311 for inserting ball grooves into the bearing.

[0030] Preferably, the hinge shaft 33 is made detachable, which makes it easy to remove the two claws 31 from the mounting bracket 4 and to quickly replace the new claws 31.

[0031] Further preferably, the outer peripheral wall of the impact sleeve 2 is provided with an anti-slip surface to facilitate the operator's grip on the impact sleeve 2 and prevent slippage.

[0032] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A bearing extractor characterized by: Includes grippers for gripping bearings and an impact sleeve assembly connected to the grippers; The gripper includes a threaded rod and two claws, which are rotatably connected to the impact sleeve assembly. The threaded rod is rotatably inserted through one of the claws and used to abut against the other claw to adjust the opening angle between the two claws. The impact sleeve assembly is used to generate an impact force to drive the grippers to inertially remove the bearing.

2. The bearing extractor of claim 1, wherein: The impact sleeve assembly includes a connecting rod, a stop block, a mounting bracket, and an impact sleeve located between the stop block and the mounting bracket. The stop block and the mounting bracket are respectively connected to the connecting rod. The impact sleeve is slidably sleeved on the connecting rod. The gripper is rotatably connected to the mounting bracket.

3. The bearing extractor of claim 2, wherein: The mounting bracket includes a pin and two spaced support arms. One end of each support arm is detachably rotatably connected to the end of the connecting rod away from the stop block via the pin. The grippers are inserted between the two support arms, and the middle of each gripper is rotatably mounted to the other end of the two support arms via a hinge shaft.

4. The bearing extractor of claim 3, wherein: One end of the threaded rod passes through one end of one of the claws and between the two support arms until it abuts against one end of the other claw.

5. The bearing extractor of claim 4, wherein: The end of the claw facing away from the threaded rod has an arcuate spherical surface for inserting a ball groove into a bearing.

6. The bearing extractor of any of claims 2-5, wherein: The stop block is fixed to the end of the connecting rod away from the mounting bracket; the outer diameter of the stop block is larger than the inner diameter of the impact sleeve.

7. The bearing extractor of any of claims 2-5, wherein: The outer peripheral wall of the impact sleeve is provided with an anti-slip surface.

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