Bearing outer ring extraction tool

Abstract

The utility model belongs to the technical field of cigarette machine maintenance auxiliary tool, concretely relates to a bearing outer ring taking-out tool, including screw bush, screw rod, tensioning cylinder, T type screw rod and taper nut, the step inner chamber that is provided with in screw bush is composed of first inner chamber and second inner chamber, the tensioning cylinder is movably arranged in the second inner chamber, the first inner chamber is provided with internal thread, the screw rod passes the inner chamber of screw bush and is connected with the first inner chamber thread, and is connected with the tensioning cylinder thread in the threaded end of screw rod, the first through -hole that is provided with axial penetration in screw rod, and is provided with internal thread in the first through -hole near the tensioning cylinder side, and T type screw rod is connected with taper nut thread after penetrating into the first through -hole and the tensioning cylinder. The tool is even and reasonable, can effectively conveniently dismounts replacement bearing, avoids the inconvenient use of the tool of dismounting bearing shell, time -consuming and labor -intensive, the condition of damaging parts, overall operation is convenient, and protects the wheel body seat hole wall.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary tools for cigarette machine maintenance, and specifically relates to a tool for removing the outer ring of a bearing. Background Technology

[0002] When repairing the separator drum of a cigarette machine, the linear bearing needs to be replaced. Because the linear bearing is installed in the blind hole of the wheel seat, and the step limit is used, the bearing can only be disassembled by tapping the inner wall of the bearing at an angle with a screwdriver or copper rod. This often results in damage to the cage, leaving the outer shell inside the hole. Repeatedly tapping from different angles is time-consuming and laborious, making maintenance inconvenient. Uneven force affects the bearing installation accuracy and may even damage the hole wall, causing the wheel seat to be scrapped, resulting in significant economic losses. Utility Model Content

[0003] The purpose of this utility model is to provide a bearing outer ring removal tool that is convenient to use, protects the integrity of the parts, improves maintenance efficiency, and ensures accuracy for a specific bearing structure.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A bearing outer ring removal tool includes a threaded sleeve, a screw, a tensioning cylinder, a T-shaped screw, and a tapered nut. The threaded sleeve has a cylindrical tube structure and a stepped inner cavity consisting of a first inner cavity and a second inner cavity. The tensioning cylinder is movably disposed in the second inner cavity. The first inner cavity has an internal thread. The screw passes through the inner cavity of the threaded sleeve and is threadedly connected to the first inner cavity. The threaded end of the screw is threadedly connected to the tensioning cylinder.

[0006] A first through hole is provided in the screw, and an internal thread is provided on the side of the first through hole near the tensioning cylinder. The T-shaped screw passes through the first through hole and the tensioning cylinder and is threadedly connected to the tapered nut.

[0007] Furthermore, the inner diameter of the first inner cavity of the threaded sleeve is smaller than the inner diameter of the second inner cavity.

[0008] Furthermore, two opposing cutting portions are provided at one end of the threaded sleeve near the first inner cavity for engaging with a wrench.

[0009] Furthermore, the tensioning cylinder includes a cylindrical body, on which a second through hole is provided axially, and an internal thread is provided at the left end of the second through hole. The internal thread is threaded with the external thread of the screw. Three or more openings are evenly distributed on the side wall of the cylindrical body, dividing the cylindrical body into three or more tensioning parts, and a protrusion is provided on the outer side of each tensioning part near the end.

[0010] Furthermore, there are five openings and five tensioning sections.

[0011] Furthermore, the outer surface of the screw includes a smooth surface on the left and an external thread on the right, and the external thread of the screw is threadedly connected to the internal thread of the second through hole of the tensioning cylinder.

[0012] Furthermore, the conical nut includes a conical nut body and two or more extensions provided on the outer side of the conical nut body, the extensions sliding within the opening.

[0013] The beneficial effects of this utility model are:

[0014] The bearing outer ring removal tool in this technical solution distributes force evenly and reasonably, enabling effective and convenient disassembly and replacement of the bearing. It avoids the inconvenience, time-consuming and laborious nature of traditional bearing housing removal tools, which can damage parts. The overall operation is convenient, protects the wheel housing bore wall, and ensures proper and standardized tool use. It solves the problems of difficult outer ring removal and damaged wheel bodies. Attached Figure Description

[0015] Figure 1 This is an exploded view of the bearing outer ring removal tool of this utility model.

[0016] Figure 2 This is a schematic diagram of the bearing outer ring removal tool of this utility model.

[0017] Figure 3 This is a schematic diagram of the cylindrical screw fitting of this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Screw sleeve; 2. Screw; 3. Tensioning cylinder; 4. T-screw; 5. Tapered nut; 11. Cutting part; 31. Tensioning part; 32. Opening; 33. Protrusion. Detailed Implementation

[0020] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of this utility model, and should not be construed as limiting the technical solution of this utility model.

[0021] like Figures 1 to 3 As shown, this application provides a bearing outer ring removal tool, including a threaded sleeve 1, a screw 2, a tensioning cylinder 3, a T-shaped screw 4, and a tapered nut 5. The threaded sleeve of this application has a cylindrical tube structure, with two opposing cutting parts 11 provided at the left end of the cylindrical tube. These two cutting parts are used to cooperate with a wrench to achieve rotation of the cylindrical tube, or to prevent the threaded sleeve from rotating by cooperating with the wrench and the cutting parts.

[0022] In this application, a stepped inner cavity is provided inside the screw sleeve, specifically composed of a first inner cavity and a second inner cavity. The first inner cavity is located on the side near the cutting part, i.e., the left side of the screw sleeve, and the second inner cavity is located on the right side of the screw sleeve. The inner diameter of the first inner cavity is smaller than the inner diameter of the second inner cavity. The inner surface of the first inner cavity is provided with an internal thread for threaded engagement with the screw. The second inner cavity is used to place a tensioning cylinder, and the tensioning cylinder can slide within the second inner cavity.

[0023] The specific installation method is as follows: the screw is inserted into the sleeve, and the external thread of the screw is engaged with the internal thread of the sleeve. The screw is screwed in clockwise and then pulled out of the sleeve counterclockwise. The end of the screw is then threaded into the tension cylinder.

[0024] The tensioning cylinder of this application includes a cylindrical body, on which an axially penetrating second through hole is provided. In this application, the diameter of the second through hole is not the same, and it is composed of a third through hole on the left and a fourth through hole on the right end connected in sequence. The third through hole is an internal threaded hole that is threaded to the screw, and the fourth through hole on the right end is a smooth hole for inserting a T-shaped screw.

[0025] There are three or more non-axially penetrating openings 32 evenly distributed on the side wall of the cylindrical body. In this embodiment, five openings are used as an example for explanation. These five openings 32 divide the right side wall of the cylindrical body into five tensioning parts 31. A protrusion 33 is provided on the outer side of each tensioning part 31 near the end for matching with the corresponding position of the inner wall of the bearing.

[0026] The outer surface of the screw in this application includes a smooth surface on the left and an external thread on the right. The external thread on the right can be threaded to the first inner cavity of the screw sleeve, and is also threaded to the third through hole of the tensioning cylinder. An axially penetrating first through hole is provided at the center of the screw. The first through hole in this application is an internally threaded hole that is threaded to fit with the T-type screw.

[0027] The conical nut of this application includes a conical nut body and two or more extensions provided on the outer side of the conical nut body, wherein the extensions slide within the opening.

[0028] The foregoing parts of this application are as follows Figure 2 To assemble, the screw and the sleeve are threaded together. After screwing the screw into the sleeve, the tensioning cylinder is threaded together with the end of the screw and tightened. Then, the T-screw is screwed into the screw and the T-screw is threaded together with the tapered nut.

[0029] When not in use, turning the screw counterclockwise retracts most of the tension cylinder into the sleeve. In use, turning the screw clockwise removes the tension cylinder from the sleeve without turning the T-screw. Then, insert the front end of the tension cylinder into the bearing. Rotate the cylinder at a certain angle to align the protrusion on the cylinder with the protrusion on the bearing's inner wall. Rotate the T-screw to move the tapered nut along the tension cylinder from right to left, gradually opening the tension section of the cylinder and tightening it against the bearing's inner wall. Finally, rotate the sleeve to apply an outward axial force to the screw, causing the bearing housing to move synchronously and pull the bearing housing out.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tool for removing the outer ring of a bearing, characterized in that, The device includes a threaded sleeve, a screw rod, a tensioning cylinder, a T-shaped screw rod, and a tapered nut. The threaded sleeve is a cylindrical tube structure with a stepped inner cavity consisting of a first inner cavity and a second inner cavity. The tensioning cylinder is movably disposed within the second inner cavity. The first inner cavity has an internal thread. The screw rod passes through the inner cavity of the threaded sleeve and is threadedly connected to the first inner cavity. The threaded end of the screw rod is threadedly connected to the tensioning cylinder. A first through hole is provided in the screw, and an internal thread is provided on the side of the first through hole near the tensioning cylinder. The T-shaped screw passes through the first through hole and the tensioning cylinder and is threadedly connected to the tapered nut.

2. The bearing outer ring removal tool according to claim 1, characterized in that, The inner diameter of the first inner cavity of the threaded sleeve is smaller than the inner diameter of the second inner cavity.

3. The bearing outer ring removal tool according to claim 1, characterized in that, Two opposing cutting portions are provided at one end of the threaded sleeve near the first inner cavity for engagement with a wrench.

4. The bearing outer ring removal tool according to claim 1, characterized in that, The tensioning cylinder includes a cylindrical body with an axially penetrating second through hole. An internal thread is provided at the left end of the second through hole, which engages with the external thread of the screw. Three or more openings are evenly distributed on the side wall of the cylindrical body, dividing the cylindrical body into three or more tensioning parts. A protrusion is provided on the outer side of each tensioning part near the end.

5. The bearing outer ring removal tool according to claim 4, characterized in that, There are five openings and five tensioning sections.

6. The bearing outer ring removal tool according to claim 4, characterized in that, The outer surface of the screw includes a smooth surface on the left and an external thread on the right. The external thread of the screw is threadedly connected to the internal thread of the second through hole of the tensioning cylinder.

7. The bearing outer ring removal tool according to claim 4, characterized in that, The conical nut includes a conical nut body and two or more extensions provided on the outer side of the conical nut body, the extensions sliding within the opening.

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