Bearing puller

Abstract

The utility model discloses a bearing puller, and belongs to the technical field of bearing pullers. The device mainly comprises a screw rod, and a rotating handle penetrates through the screw rod; the pull seat is fixedly mounted on the screw rod; the three groups of pull feet are connected with two groups of connecting sheets; the lifting assembly comprises a pull rod arranged between the two groups of connecting sheets; the abutting assembly comprises an outer claw hook arranged on the pull rod and an inner claw hook clamped to the end, close to the connecting piece, of the pull rod, and the outer claw hook and the inner claw hook are suitable for rotating switching so as to adapt to different bearing dismounting working conditions. The utility model discloses a bearing puller which is provided with an inner claw hook and an outer claw hook, and the outer claw hook and the inner claw hook are suitable for rotating switching so as to adapt to different bearing dismounting working conditions.

Description

Technical Field

[0001] The present application relates to the technical field of bearing pullers, and in particular to a bearing puller. Background Art

[0002] Bearing pullers, also known as bearing pullers, are mainly used to remove bearings from shafts. They are generally composed of a handle, a screw rod, and claws. Bearing pullers are mainly divided into two-claw and three-claw. The length, spacing, and screw length of the claws are different, which can adapt to the installation of bearings with different diameters and axial depth requirements.

[0003] For example, the utility model patent with publication number CN207206329U specifically discloses a new type of bearing puller, which clamps the outer ring of the bearing and then conveniently removes the bearing from the shaft.

[0004] The bearing puller in the above patent can only remove the part where the bearing is installed on the shaft when in use. However, during the use of the bearing, the outer ring of the bearing will be installed on the bearing seat. If the bearing needs to be removed from the bearing seat, another tool is required. This undoubtedly requires the preparation of additional tools, which results in the need to prepare tools according to the actual disassembly situation when disassembling the bearing, which in turn makes the disassembly work cumbersome. Therefore, it is necessary to design a bearing puller to solve the above problem.

[0005] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0006] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a bearing puller that can adapt to the disassembly work of the bearing under different conditions.

[0007] The technical solution adopted by the present application to solve its technical problems is: a bearing puller, comprising: a spiral rod, a rotary handle passing through the spiral rod; a pulling seat, the pulling seat is fixedly installed on the spiral rod; three groups of pulling feet, two groups of connecting plates are connected to the pulling feet; a pulling assembly, the pulling assembly includes a pulling rod arranged between the two groups of connecting plates; a supporting assembly, the supporting assembly includes an outer grab hook arranged on the pulling rod, and an inner grab hook engaged on the pulling rod near one end of the connecting plate, wherein the outer grab hook and the inner grab hook are suitable for rotation and switching to adapt to different bearing disassembly conditions.

[0008] Furthermore, the pull rod is provided with a placement groove matched with one end of the inner grab hook.

[0009] Furthermore, a second bolt is connected to the pull rod.

[0010] Furthermore, the rotary handle is provided with an anti-slip component, and the anti-slip component includes:

[0011] A grip is sleeved and mounted on the rotating handle.

[0012] Furthermore, an anti-slip pad is provided on the handle.

[0013] The beneficial effect of the present application is that the present application provides a bearing puller, which has an inner grab hook and an outer grab hook, and the outer grab hook and the inner grab hook are suitable for rotation and switching to adapt to different bearing removal conditions.

[0014] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0016] In the attached picture:

[0017] Figure 1 It is an overall schematic diagram of a bearing puller in this application;

[0018] Figure 2 for Figure 1 An exploded schematic diagram of the overall structure;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Among them, the reference numerals in the figure are:

[0021] 1. Screw rod; 11. Top; 12. Rotary handle; 2. Pull seat; 21. Pull foot; 3. Connecting plate; 31. Rotary buckle; 32. First bolt; 33. First nut; 4. Lifting assembly; 41. Pull rod; 411. External hook; 412. Fixing hole; 5. Anti-skid assembly; 51. Handle; 511. Anti-skid pad; 6. Support assembly; 61. Internal hook; 611. Second bolt. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] In the disassembly of the bearing, the bearing needs to be completely disassembled from the shaft and the bearing seat. However, in actual operation, the disassembly may be completed smoothly by knocking. However, sometimes the bearing is stuck together with the bearing seat, and sometimes it is stuck together with the shaft. At this time, the bearing needs to be disassembled from the above two parts separately.

[0025] In practice, the above two disassembly operations require different tools. Therefore, when the working conditions are unpredictable, two different tools need to be carried, which makes the bearing disassembly too complicated. In order to solve the above problem, the present application provides a tool that can handle the above two bearing disassembly operations at the same time, specifically:

[0026] like Figure 1-Figure 3 As shown, the present application provides a bearing puller, comprising a spiral rod 1 at the upper end, a rotary handle 12 is fixedly mounted on the spiral rod 1, the rotary handle 12 is used to rotate the spiral rod 1, and a top 11 is fixedly mounted on the end of the spiral rod 1 away from the rotary handle 12, the top 11 is used to abut against the shaft;

[0027] A pull seat 2 is fixedly mounted on the spiral rod 1, three groups of pull pins 21 are fixedly mounted on the pull seat 2, two groups of connecting plates 3 are connected to the pull pins 21, a rotating buckle 31 is connected to the connecting plates 3, and a buckle hole (not shown in the figure) adapted to the rotating buckle 31 is opened on the pull pin 21, so that the connecting plates 3 are rotatably arranged on the pull pin 21;

[0028] At the same time, a first bolt 32 is connected to one end of the connecting piece 3 away from the rotating buckle 31, and a lifting assembly 4 is arranged between the two groups of connecting pieces 3, the lifting assembly 4 includes a pull rod 41 arranged between the two groups of connecting pieces 3, and a plurality of fixing holes 412 adapted to the first bolt 32 are opened on the pull rod 41, and the fixing holes 412 are evenly opened on the pull rod 41, the first bolt 32 penetrates one group of connecting pieces 3 and the pull rod 41 is connected to the other group of connecting pieces 3, and a first nut 33 is connected to the first bolt 32, the first nut 33 is attached to the surface of one group of connecting pieces 3, and an outer hook 411 is fixedly installed on the end of the pull rod 41 away from the pulling foot 21, and the outer hook 411 is used to hook on the outer ring of the bearing;

[0029] In summary, when the bearing puller disassembles the bearing fixed on the shaft, first position the tip 11 of the screw rod 1 on the tip hole at the end of the shaft, then adjust the position of the outer hook 411 so that the outer hook 411 is hooked on the outer ring of the bearing, and then rotate the handle 12 so that the tip 11 exerts a force on the end of the shaft, thereby driving the bearing to move axially outward through the outer hook 411 for removal.

[0030] In order to remove the bearing that is engaged with the bearing seat, Figure 2-Figure 3 As shown, a holding component 6 is connected to the lifting component 4, and the holding component 6 includes an inner hook 61 that is engaged with one end of the pull rod 41 near the connecting piece 3, and a placement groove (not shown) that matches one end of the inner hook 61 is provided on the pull rod 41, and a second bolt 611 is connected to the pull rod 41, and the second bolt 611 passes through the fixing hole 412 and is connected to the inner hook 61;

[0031] In the present application, a second nut is connected to a side of the second bolt 611 away from the first nut 33, so as to fix the inner hook 61 on the pull rod 41, and to replace and install inner hooks 61 of different sizes, so as to disassemble bearings of different diameters.

[0032] To summarize, when the bearing puller is used to disassemble the bearing, the first bolt 32 can be removed first, and then the pull rod 41 can be turned so that the inner hook 61 is at the position of the top 11, and then the inner hook 61 is clamped at the end of the inner ring of the bearing, and then the handle 51 is rotated to make the inner hook 61 drive the bearing to move axially outward for removal, and at the same time, the inner hook 61 of different sizes can be replaced and installed.

[0033] In order to solve the problem of slipping when turning the handle, Figure 2 As shown, an anti-skid component 5 is provided on the rotary handle 12, and the anti-skid component 5 includes a handle 51 sleeved and installed on the rotary handle 12, and an anti-skid pad 511 is provided on the handle 51, and the anti-skid pad 511 is used to prevent the rotary handle 12 from slipping when being gripped and rotated.

[0034] Therefore, when the inner and outer bearings need to be disassembled, they can be disassembled by clamping the inner hook 61 and the outer hook 411 with the bearings and rotating the handle 51. The anti-slip component 5 can be used to increase the contact friction between the hand and the handle to play an anti-slip role.

[0035] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bearing puller, characterized in that: Said: A spiral rod (1), wherein a rotary handle (12) is mounted on the spiral rod (1); A pull seat (2), the pull seat (2) being fixedly mounted on the spiral rod (1); Three groups of pull pins (21), the pull pins (21) being connected to two groups of connecting plates (3); A lifting assembly (4), the lifting assembly (4) comprising a pull rod (41) arranged between two groups of the connecting plates (3); A holding component (6), the holding component (6) comprising an outer catch hook (411) arranged on the pull rod (41), and an inner catch hook (61) engaged with one end of the pull rod (41) close to the connecting piece (3); The outer catch hook (411) and the inner catch hook (61) are suitable for rotational switching to adapt to different bearing disassembly working conditions.

2. A bearing puller according to claim 1, characterized in that: The pull rod (41) is provided with a placement groove matched with one end of the inner grab hook (61).

3. A bearing puller according to claim 1, characterized in that: The pull rod (41) is connected with a second bolt (611).

4. A bearing puller according to claim 1, characterized in that: The rotating handle (12) is provided with an anti-skid component (5), and the anti-skid component (5) comprises: A handle (51) is sleeved and mounted on the rotating handle (12).

5. A bearing puller according to claim 4, characterized in that: An anti-slip pad (511) is provided on the handle (51).

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