Bearing inner sleeve dismounting device
By designing a bearing inner sleeve removal device including a semicircular clamp half body and a screw column, the problem of difficulty in disassembling the bearing inner sleeve is solved, and an efficient and low-cost removal effect is achieved.
Patent Information
- Application Number
- CN202422650254.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the prior art, the bearing inner sleeve is intersected with the transmission shaft or wear and deformation, which makes it difficult to disassemble, and traditional tools are difficult to effectively clamp and remove.
The bearing inner sleeve removal device is used with a pair of semicircular clamping half-body and screw, column and central shaft. The bearing inner sleeve is tightened by the clamping half-body, and the removal is achieved by flexibly adjusting the column and central shaft.
It improves the efficiency of removing bearing inner sleeves, reduces construction difficulty, simplifies operating procedures, and reduces costs.
Smart Images
Figure CN223265587U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bearing disassembly technology, in particular to a bearing inner sleeve disassembly device. Background Art
[0002] During the installation and maintenance of industrial equipment, it is common to replace the equipment bearings. Due to the interference fit between the inner sleeve of the bearing and the drive shaft, wear and deformation of the shaft and bearing, etc., disassembly is often difficult. Even after the old bearing outer sleeve, retainer and rolling elements are removed first, the inner sleeve fixed on the drive shaft is still difficult to remove. Utility Model Content
[0003] In order to solve the above problems in the prior art, the utility model provides a bearing inner sleeve disassembly device.
[0004] The utility model provides a bearing inner sleeve disassembly device, which adopts the following technical solutions:
[0005] The bearing inner sleeve disassembly device includes two fixture halves that cooperate to clamp the bearing inner sleeve, two screws are passed between the two fixture halves, and a nut is installed on the screw. A column is vertically installed on the top surface of the fixture half, and a crossbeam is provided on the top of the two columns. A mounting hole with an internal thread is opened in the middle of the crossbeam, and long sliding holes are provided on both sides of the mounting hole. The top of the column is provided with an external thread and is slidably passed through the sliding hole. The top of the column is fixed by a nut. The inner thread of the mounting hole is installed with a central shaft for abutting the transmission shaft, and the top of the central shaft is provided with a handle.
[0006] By adopting the above technical solution, the device is easy to obtain materials, simple to manufacture, low in cost, improves the removal efficiency of the bearing inner sleeve, significantly shortens the operation time, and reduces the difficulty of construction technology.
[0007] Optionally, an external thread is provided at the bottom end of the column, a threaded hole is provided on the top surface of the clamp half, and the column is threadedly mounted on the clamp half.
[0008] By adopting the above technical solution, the installation or removal of the column is facilitated, and the assembly efficiency is improved.
[0009] Optionally, the middle portion of the column is configured to be prism-shaped.
[0010] By adopting the above technical solution, it is convenient for workers to use a wrench to tighten the column.
[0011] In summary, the present invention has at least one of the following beneficial technical effects:
[0012] 1. This device uses a pair of semicircular clamp halves to clamp the bearing inner sleeve, solving the problem that traditional technologies such as hooks and pullers are difficult to clamp the bearing inner sleeve and are prone to loosening during ejection operation. The pair of clamp halves can ensure a tight fit with the groove of the bearing inner sleeve, evenly apply force, and are not easily scratched or worn;
[0013] 2. With the transmission shaft as the fulcrum, the central axis adopts a screw design. The distance between the two columns is adjustable and can be flexibly disassembled and assembled, making the device simple and convenient to operate when ejecting the bearing inner sleeve;
[0014] 3. The device is easy to obtain materials, simple to make, and low in cost. It improves the efficiency of removing the inner sleeve of the bearing, significantly shortens the operation time, and reduces the difficulty of construction technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of a bearing inner sleeve disassembly device according to an embodiment of the present utility model.
[0016] Figure 2 It is a front view of the bearing inner sleeve disassembly device according to an embodiment of the present utility model.
[0017] Explanation of the accompanying reference numerals: 1. gear; 2. transmission shaft; 3. bearing inner sleeve; 4. fixture half; 40. screw; 41. nut one; 5. column; 50. nut two; 6. beam; 60. mounting hole; 61. sliding hole; 7. center axis; 70. handle. DETAILED DESCRIPTION
[0018] The following is combined with Figure 1 -Attached Figure 2 The utility model is described in further detail.
[0019] The embodiment of the utility model discloses a bearing inner sleeve disassembly device. Figure 1 and Figure 2 Taking the transmission shaft 2 on gear 1 as an example, the bearing inner sleeve 3 is clamped on the transmission shaft 2 and needs to be removed. The bearing inner sleeve removal device includes two symmetrically arranged clamp halves 4, which are machined from steel plates. The thinner inner portions of the clamp halves 4 are used to clamp the grooves on the peripheral wall of the bearing inner sleeve 3. Two screws 40 are inserted between the thicker outer portions of the two clamp halves 4. Nuts 41 are installed at the ends of the screws 40 to secure the clamp halves 4.
[0020] Reference Figure 1 and Figure 2A column 5 is vertically installed on the top surface of each clamp half 4. The column 5 is made of round steel, and external threads are processed at both ends of the column 5. The middle part of the column 5 is processed into a hexagonal column shape for easy disassembly and assembly with a wrench; a threaded hole is opened on the top surface of the clamp half 4, and the bottom end of the column 5 is threadedly connected to the threaded hole; a crossbeam 6 is horizontally arranged above the two columns 5, and the crossbeam 6 is made of steel plate. A mounting hole 60 with an internal thread is opened in the middle of the crossbeam 6, and long sliding holes 61 are opened on both sides of the mounting hole 60. The top of the column 5 is passed through the sliding hole 61 and is fixed by a nut 2 50. When the diameter of the bearing inner sleeve 3 changes, the distance between the two columns 5 can be adjusted.
[0021] Reference Figure 1 and Figure 2 The inner thread of the mounting hole 60 is installed with a central shaft 7 with an external thread. The bottom end of the central shaft 7 is used to abut the transmission shaft 2. The top end of the central shaft 7 is horizontally fixed with a handle 70 for driving the central shaft 7 to rotate.
[0022] The method for disassembling the bearing inner sleeve according to the embodiment of the utility model comprises the following steps:
[0023] S1. Arrange the two fixture halves 4 opposite to each other and insert them into the groove of the bearing inner sleeve 3. Then insert two screws 40 and tighten them with nuts 41 to fix the two fixture halves 4 on the bearing inner sleeve 3.
[0024] S2. Screw the bottom ends of the two columns 5 into the threaded holes on the top surface of the clamp half 4 and tighten them;
[0025] S3. Place the crossbeam 6 on the two columns 5, pass the top of the columns 5 through the sliding holes 61, and then tighten and secure them with nuts 50.
[0026] S4. Screw the middle shaft 7 into the mounting hole 60, operate the handle 70 to rotate the middle shaft 7 so that the bottom end of the middle shaft 7 abuts the transmission shaft 2, and then further rotate the handle 70 to gradually pull the bearing inner sleeve 3 off the transmission shaft 2 until the removal work is completed.
[0027] The device adopts a pair of semicircular clamp halves 4 to clamp the bearing inner sleeve 3, solving the problem that traditional technologies such as hooks and pullers are difficult to clamp the bearing inner sleeve 3 and are easy to loosen during ejection operation; the pair of clamp halves 4 can ensure that they are tightly combined with the grooves of the bearing inner sleeve 3, with uniform force, and are not easily scratched or worn; with the transmission shaft 2 as the fulcrum, the central axis 7 adopts a screw design, and the spacing between the two columns 5 is adjustable and can be flexibly disassembled and assembled, so that the operation of the device to eject the bearing inner sleeve 3 is simple and convenient; the device is easy to obtain materials, simple to make, and low in cost, which improves the removal efficiency of the bearing inner sleeve 3, significantly shortens the operation time, and reduces the difficulty of construction technology.
[0028] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A bearing inner sleeve disassembly device, characterized in that: The invention comprises two clamp halves (4) which cooperate to clamp the bearing inner sleeve (3), two screw rods (40) are passed through the two clamp halves (4), a nut (41) is installed on the screw rod (40), a column (5) is vertically installed on the top surface of the clamp half body (4), a crossbeam (6) is provided on the top of the two columns (5), a mounting hole (60) with an internal thread is opened in the middle of the crossbeam (6), and long strip-shaped sliding holes (61) are provided on both sides of the mounting hole (60), the top of the column (5) is provided with an external thread and is slidably passed through the sliding hole (61), the top of the column (5) is fixed by a nut (50), the inner thread of the mounting hole (60) is provided with a central axis (7) for abutting the transmission shaft (2), and the top of the central axis (7) is provided with a handle (70).
2. The bearing inner sleeve disassembly device according to claim 1, characterized in that: The bottom end of the column (5) is provided with an external thread, the top surface of the clamp half body (4) is provided with a threaded hole, and the column (5) is threadedly mounted on the clamp half body (4).
3. The bearing inner sleeve disassembly device according to claim 2, characterized in that: The middle part of the column (5) is arranged in a prism shape.