Bearing dismounting tool

Abstract

The utility model provides a bearing dismounting tool, which is used for dismounting a bearing sleeved on a bearing mounting shaft, the bearing dismounting tool comprises a pressing plate, a guide piece and a chuck, the pressing plate is fixedly connected with the bearing mounting shaft through a fastener, the guide piece is slidably connected to the pressing plate along a first direction, the first direction is perpendicular to the pressing plate, and the chuck is arranged on the pressing plate. The chuck is detachably connected to one end of the guide part and connected with the bearing in a clamped mode, the inner side of the chuck abuts against the outer side of the bearing, and the guide part moves in the first direction to drive the chuck to be close to or away from the pressing plate. According to the bearing dismounting tool, the chuck and the bearing are connected in the clamping mode and are in surface contact, the contact area between the bearing dismounting tool and the bearing is increased, the bearing can be evenly stressed in the dismounting process, and damage to the bearing caused by dismounting is reduced. And the chuck is detachably connected with one end of the guide piece, so that the specification of the chuck can be conveniently replaced, the disassembly work of bearings with different sizes can be carried out, and adjustability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing disassembly, in particular to a bearing disassembly tool. Background Art

[0002] Bearings are an integral part of mechanical transmission systems, providing support and guidance while also reducing friction compared to transmission components without bearings. Bearings are precision-machined components, and their installation and removal procedures generally adhere to strict procedures to prevent damage. Furthermore, to facilitate assembly and disassembly, many bearings are designed with separate structures, allowing the inner and outer rings to be separated and installed independently. Examples include the separate inner ring assembly of the common NJ series cylindrical roller bearings and the separate outer ring assembly of the 3 series tapered roller bearings.

[0003] In the existing technology, bearing disassembly and assembly tools generally adopt a clamping structure. The structural form of this tool is mainly used in scenarios where smaller-sized bearings and the shoulder fit space are larger. The inner and outer rings of the tapered roller bearing itself have no fixed fit. When using a disassembly tool with a clamping structure, the disassembly work is difficult due to the limited fit space between the inner ring of the bearing and the bearing shoulder. In addition, because the clamping claw is in direct contact with the inner ring roller and the retaining cage and is in point contact, when the bearing size is large, it may cause bearing damage, thereby affecting the bearing service life. Utility Model Content

[0004] The purpose of the utility model is to provide a bearing disassembly and assembly tool to solve the problems of difficult disassembly work in a narrow assembly space and easy bearing damage.

[0005] The utility model provides a bearing disassembly tool for disassembling a bearing mounted on a bearing mounting shaft. The bearing disassembly tool comprises a pressure plate, a guide member and a chuck. The pressure plate is fixedly connected to the bearing mounting shaft by a fastener. The guide member is slidably connected to the pressure plate along a first direction, and the first direction is perpendicular to the pressure plate. The chuck is detachably connected to one end of the guide member. The chuck is engaged with the bearing, and the inner side of the chuck abuts against the outer side of the bearing. The guide member moves along the first direction to drive the chuck closer to or away from the pressure plate.

[0006] In one embodiment of the present invention, the bearing disassembly tool also includes a nut, the guide member is a screw, the pressure plate is provided with a through hole, one end of the guide member passes through the through hole, and the nut is sleeved on one end of the guide member and threadedly connected to the guide member to enable the guide member to move relative to the pressure plate along the first direction.

[0007] In one embodiment of the present invention, there are four guide members, the pressure plate is provided with four through holes, and each guide member is connected in cooperation with one nut.

[0008] In one embodiment of the present invention, the chuck includes a first part and a second part, the two ends of the first part and the two ends of the second part are fixedly connected, the first part and the second part are enclosed to form a receiving hole, the receiving hole is for the bearing to be placed, the inner side of the first part and the inner side of the second part are both in contact with the outer side of the bearing, the first part and the second part clamp the bearing and remain relatively fixedly connected to the bearing.

[0009] In an embodiment of the present invention, the bearing disassembly tool further includes a connecting assembly, and the first part and the second part are fixedly connected via the connecting assembly.

[0010] In one embodiment of the present invention, the connecting assembly includes a first connecting plate, a second connecting plate and a bolt, the first connecting plate and the second connecting plate are respectively located on opposite sides of the first part and the second part, and the bolt is used to fix and lock the first connecting plate and the second connecting plate so that the first part and the second part are fixedly connected.

[0011] In one embodiment of the present invention, the four guide members are evenly distributed between the pressure plate and the chuck.

[0012] In one embodiment of the present invention, the bearing disassembly and assembly tool further includes a lifting ring, which is fixedly connected to the pressure plate and is used for lifting, hanging and transportation.

[0013] In this bearing disassembly and assembly tool, the chuck and bearing are engaged and face-to-face, increasing the contact area between the tool and the bearing. This ensures uniform force distribution during disassembly and minimizes damage to the bearing. The chuck is removably connected to one end of the guide member, allowing for easy replacement of chuck sizes and the removal of bearings of varying sizes, providing adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a bearing disassembly and assembly tool according to an embodiment of the present invention.

[0015] Figure 2 This is a structural schematic diagram of a bearing disassembly and assembly tool in a working state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0017] The utility model provides a bearing disassembly tool for disassembling a bearing 22 mounted on a bearing mounting shaft 21. Figure 1-2 As shown, a bearing disassembly tool of an embodiment includes a pressure plate 11, a guide member 12 and a chuck 13. The pressure plate 11 is fixedly connected to the bearing mounting shaft 21 by fasteners. The guide member 12 is slidably connected to the pressure plate 11 along a first direction, and the first direction is perpendicular to the pressure plate 11. The chuck 13 is detachably connected to one end of the guide member 12. The chuck 13 is engaged with the bearing 22, and the inner side of the chuck 13 is abutted against the outer side of the bearing 22. The guide member 12 moves along the first direction to drive the chuck 13 closer to or away from the pressure plate 11.

[0018] In the bearing disassembly and assembly tool of the present invention, the chuck 13 is engaged and connected with the bearing 22 in surface contact, increasing the contact area between the bearing disassembly tool and the bearing 22, ensuring uniform force on the bearing 22 during disassembly and reducing damage to the bearing 22. The chuck 13 is detachably connected to one end of the guide member 12, allowing for easy replacement of the chuck 13 specifications, enabling the disassembly of bearings of different sizes and providing adjustability.

[0019] For ease of description and understanding, the first direction is defined as an up-down direction.

[0020] It should be noted that the pressing plate 11 and the chuck 13 in this embodiment are arranged parallel to each other and are respectively located at two ends of the guide member 12 .

[0021] In this embodiment, the bearing removal tool further includes a nut 14. The guide member 12 can be a screw. The pressure plate 11 has a through hole, through which one end of the guide member 12 extends. The nut 14 is sleeved on one end of the guide member 12 and threadedly engages with the guide member 12 to enable the guide member 12 to move up and down relative to the pressure plate 11. During the up and down movement of the guide member 12, the pressure plate 11 is fixedly connected to the bearing mounting shaft 21, and the pressure plate 11 remains relatively fixed and stationary. The nut 14 is threadedly engaged with the guide member 12 at the end of the guide member 12 away from the chuck 13. As the nut 14 rotates clockwise, the guide member 12 moves upward, one end of the guide member 12 gradually extending from the through hole of the pressure plate 11. The other end of the guide member 12 is fixedly connected to the chuck 13, which then drives the chuck 13 upward. The chuck 13 engages with the bearing 22 and remains relatively fixedly connected to the bearing 22, synchronously driving the bearing 22 upward, thereby removing the bearing 22 from the bearing mounting shaft 21.

[0022] In another preferred embodiment, there may be four guide members 12. Simultaneously, the pressure plate 11 is provided with four through holes. One end of each guide member 12 extends through one through hole and is engaged with a nut 14. Those skilled in the art may set the number of guide members 12 to 2, 3, 5, 6, etc. according to actual conditions, and this is not a limitation.

[0023] In this embodiment, the chuck 13 includes a first part 131 and a second part 132. The two ends of the first part 131 and the two ends of the second part 132 are fixedly connected. The first part 131 and the second part 132 are enclosed to form a receiving hole 133. The receiving hole 133 is for the bearing 22 to be placed. The inner side of the first part 131 and the inner side of the second part 132 are both in contact with the outer side of the bearing 22. The first part 131 and the second part 132 clamp the bearing 22 and remain relatively fixedly connected to the bearing 22.

[0024] Specifically, the chuck 13 can be annular, i.e., both the first portion 131 and the second portion 132 are semi-annular. The first portion 131 and the second portion 132 are fixedly connected to form a receiving hole 133. The diameter of the receiving hole 133 is the same as the outer diameter of the bearing 22. This allows the first portion 131 and the second portion 132 to clamp the bearing 22 and maintain a fixed connection. As the guide member 12 moves upward, the guide member 12 drives the chuck 13 upward, engaging the chuck 13 and relatively fixing the bearing 22. The chuck 13 drives the bearing 22 upward, and after moving a certain distance, the bearing 22 can be removed from the bearing mounting shaft 21.

[0025] In this embodiment, the bearing removal tool further includes a connecting assembly 15, through which the first portion 131 and the second portion 132 are fixedly connected. Two connecting assemblies 15 are provided, one at each end of the first portion 131 and the other at each end of the second portion 132. The two connecting assemblies 15 are respectively fixedly connected.

[0026] Specifically, the connecting assembly 15 includes a first connecting plate 151, a second connecting plate 152 and a bolt 153. The first connecting plate 151 and the second connecting plate 152 are respectively located on opposite sides of the first part 131 and the second part 132. The bolt 153 is used to fix and lock the first connecting plate 151 and the second connecting plate 152 so that the first part 131 and the second part 132 are fixedly connected.

[0027] In this embodiment, the four guide members 12 are evenly distributed between the pressure plate 11 and the chuck 13. This distribution arrangement makes the force exerted on the bearing 22 more balanced when it is driven upward by the chuck 13, thereby preventing the bearing 22 from being damaged due to uneven force during the removal of the bearing 22.

[0028] In this embodiment, the bearing 22 disassembly and assembly tool further includes a lifting ring 16, which is fixedly connected to the pressure plate 11 and is used for lifting, hanging and transportation.

[0029] It should be noted that, in this embodiment, the bearing 22 is a tapered roller bearing. The outer ring of the tapered roller bearing can be taken out manually, and the chuck 13 is sleeved on the inner ring of the tapered roller bearing.

[0030] In this document, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms based on specific circumstances.

[0031] In this document, the directions or positional relationships indicated by terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", and "horizontal" are based on the directions or positional relationships shown in the accompanying drawings and are only for the clarity of the technical solution and the convenience of description. Therefore, they should not be understood as limitations on the present invention.

[0032] As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A bearing disassembly tool for disassembling a bearing mounted on a bearing mounting shaft, characterized in that: The bearing disassembly tool comprises a pressure plate (11), a guide member (12) and a chuck (13); the pressure plate (11) is fixedly connected to the bearing mounting shaft by a fastener; the guide member (12) is slidably connected to the pressure plate (11) along a first direction, and the first direction is perpendicular to the pressure plate (11); the chuck (13) is detachably connected to one end of the guide member (12); the chuck (13) is engaged with the bearing, and the inner side of the chuck (13) is in contact with the outer side of the bearing; the guide member (12) moves along the first direction to drive the chuck (13) to move closer to or away from the pressure plate (11).

2. The bearing disassembly tool according to claim 1, characterized in that: The bearing disassembly tool further includes a nut (14), the guide member (12) is a screw, the pressure plate (11) is provided with a through hole, one end of the guide member (12) passes through the through hole, and the nut (14) is sleeved on one end of the guide member (12) and threadedly connected to the guide member (12) to enable the guide member (12) to move relative to the pressure plate (11) along the first direction.

3. The bearing disassembly tool according to claim 2, characterized in that: There are four guide members (12), the pressure plate (11) is provided with four through holes, and each guide member (12) is connected in cooperation with a nut (14).

4. The bearing disassembly tool according to claim 1, characterized in that: The chuck (13) includes a first part (131) and a second part (132), two ends of the first part (131) and two ends of the second part (132) are fixedly connected, the first part (131) and the second part (132) enclose to form a receiving hole (133), the receiving hole (133) is for the bearing to be placed, the inner side of the first part (131) and the inner side of the second part (132) are both in contact with the outer side of the bearing, the first part (131) and the second part (132) clamp the bearing and remain relatively fixedly connected to the bearing.

5. The bearing disassembly tool according to claim 4, characterized in that: The bearing disassembly tool further comprises a connecting assembly (15), and the first part (131) and the second part (132) are fixedly connected via the connecting assembly (15).

6. The bearing disassembly tool according to claim 5, characterized in that: The connecting assembly (15) comprises a first connecting plate (151), a second connecting plate (152) and a bolt (153), wherein the first connecting plate (151) and the second connecting plate (152) are respectively located on opposite sides of the first part (131) and the second part (132), and the bolt (153) is used to fix and lock the first connecting plate (151) and the second connecting plate (152) so that the first part (131) and the second part (132) are fixedly connected.

7. The bearing disassembly tool according to claim 3, characterized in that: The four guide members (12) are evenly distributed between the pressing plate (11) and the chuck (13).

8. The bearing disassembly tool according to claim 1, characterized in that: The bearing disassembly and assembly tool further comprises a lifting ring (16), which is fixedly connected to the pressing plate (11) and is used for lifting, hanging and transporting.

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