Portable bearing ejection tool

Abstract

The utility model discloses a portable bearing ejection tool, and relates to the technical field of bearing disassembly, the portable bearing ejection tool comprises a base, a first screw rod, a second screw rod and a fixing block, the fixing block and the base are arranged at a certain height, the first screw rod penetrates through the fixing block, and the first screw rod is in threaded fit with the fixing block; the second screw rods are arranged on the two sides of the first screw rod along the axis of the first screw rod, the second screw rods are fastened to the base and the fixing block through locking pieces respectively, the base is round, and a clamping groove is formed in the base. When the bearing and the shaft are adhered into a whole, the bearing and the transmission shaft are easily separated from each other through convenient operation of the ejection tool, and the ejection tool is small and exquisite and convenient to assemble and disassemble.

Description

Technical Field

[0001] The present application relates to the technical field of bearing disassembly, and in particular to a convenient bearing ejection tool. Background Art

[0002] During use, bearings may rust due to water vapor, moisture or other corrosive substances, causing bearing components to stick together and be difficult to separate; or the fit between the bearing and the shaft or bearing seat is too tight, which may be due to design requirements or thermal expansion caused by long-term operation, making it difficult to remove the bearing from the shaft.

[0003] Therefore, in the actual production process, it is often encountered that the bearing is difficult to disassemble, so a portable bearing disassembly tool is urgently needed. Utility Model Content

[0004] In order to improve the problem that the parts of the bearing are stuck together and difficult to disassemble after long-term use, the present application provides a convenient bearing ejection tool.

[0005] The present application provides a portable bearing ejection tool that adopts the following technical solution:

[0006] A convenient bearing ejection tool comprises a base, a first screw, a second screw and a fixed block, wherein the fixed block and the base are arranged at a certain height, the first screw passes through the fixed block, and the first screw and the fixed block are threadedly matched, the second screw is arranged on both sides of the first screw along the axis of the first screw, the second screw is respectively fastened to the base and the fixed block by locking pieces, the base is circular, and a slot is provided on the base.

[0007] By adopting the above technical solution, the second screws located on both sides of the first screw play a supporting role. The space formed by the second screw, the fixed block and the base facilitates the movement of the first screw along its own axial direction. The fixed seat, the second screw and the base are fastened by locking members, so disassembly and installation are simpler and more convenient. The axis of the bearing to be disassembled is aligned with the axis of the first screw, and the first screw is rotated to move downward. The first screw pushes against the inner ring of the bearing, so that the bearing and the transmission shaft are separated from each other. This operation is convenient and quick.

[0008] Optionally, a conical top is integrally formed at one end of the first screw rod close to the base, and a mounting hole is formed at one end of the first screw rod away from the base, and the axis of the mounting hole and the axis of the first screw rod are perpendicular to each other.

[0009] By adopting the above technical solution, the mounting hole located on the end of the first screw rod can be easily rotated by a force wrench, which helps to save disassembly time and improve the efficiency of disassembling the bearing.

[0010] Optionally, the locking member includes a gasket and a nut, one end of the second screw rod passes through the base and cooperates with the nut thread, the second screw rod passes through the fixing block and cooperates with the nut thread, and the gasket located between the fixing block and the nut is sleeved on the second screw rod.

[0011] By adopting the above technical solution, the tightness between the two connecting parts is maintained within the predetermined service life, the surface of the fixing block is prevented from being worn, and the nut is prevented from loosening.

[0012] Optionally, the length of the first screw is greater than the length of the second screw, and the shaft diameter of the first screw is greater than the shaft diameter of the second screw.

[0013] By adopting the above technical solution, the larger shaft diameter of the first screw helps to support the transmission shaft of the inner ring of the bearing.

[0014] Optionally, the slot is U-shaped, and a slot pitch of the slot is greater than an axial diameter of the first screw.

[0015] By adopting the above technical solution, the bearing sleeve is arranged on the transmission shaft, and the outer diameter of the bearing is larger than the diameter of the transmission shaft. Therefore, the larger groove pitch is convenient for adapting the transmission shaft to pass through the slot, and the bearing is blocked by the base, which facilitates the ejection and separation of the transmission shaft and the bearing.

[0016] Optionally, a movable groove is provided on the inner wall of the clamping groove, and a clamping member for abutting against the bearing is slidably provided in the movable groove.

[0017] By adopting the above technical solution, the bearing is better limited by the clamping member, which facilitates the separation of the transmission shaft and the bearing.

[0018] Optionally, the clamping member includes a clamping bolt and a clamping plate, the clamping plate is slidably arranged in the movable groove, the clamping bolt passes through the base and the clamping plate and rotates to fit, and the clamping bolt and the base are threadedly fitted.

[0019] By adopting the above technical solution, by tightening the clamping bolt, the clamping bolt drives the clamping plate along the movable groove to approach the outer ring of the bearing, so that the clamping plate and the outer ring of the bearing are in contact, which helps the bearing to limit the transmission shaft from the bearing.

[0020] Optionally, the side of the abutting plate facing the bearing is a smooth arc-shaped surface.

[0021] By adopting the above technical solution, the arc surface helps to fit the bearing surface, making it easier for the clamping plate and the outer ring of the bearing to abut against each other.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The second screw penetrates the fixed block and the base, and the second screw is fixed by a locking piece. The first screw is rotated to move toward the inner ring of the bearing located at the base slot. During the transmission process of the first screw, the bearing and the transmission shaft are ejected and separated. The operation is simple and convenient, which helps to save the bearing disassembly time and improve the bearing disassembly efficiency;

[0024] 2. The ejection tool used consists of a base, a first screw, a second screw, a fixing block and a plurality of nuts, which is convenient for assembly and disassembly, and the tool is light and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a structural diagram showing implementation one of the present application.

[0027] Figure 2 It is a structural schematic diagram of the present application observed from another perspective.

[0028] Figure 3 It is a structural schematic diagram showing the second embodiment of the present application.

[0029] Figure 4 It is a cross-sectional view showing the fastening member of the present application.

[0030] Figure numerals: 1, base; 2, first screw; 3, second screw; 4, fixing block; 5, locking piece; 6, slot; 7, conical head; 8, mounting hole; 51, gasket; 52, nut; 9, fastening piece; 91, fastening bolt; 92, fastening plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiment of the present application discloses a portable bearing ejection tool.

[0033] Embodiment 1

[0034] Reference Figure 1A convenient bearing ejection tool comprises a base 1, a first screw 2, a second screw 3 and a fixed block 4. The fixed block 4 and the base 1 are arranged at a certain height. The first screw 2 passes through the fixed block 4, and the first screw 2 and the fixed block 4 are threadedly matched. The end of the first screw 2 is hexagonal and can be rotated by tools such as calipers wrenches or pliers. The second screw 3 is arranged on both sides of the first screw 2 along the axis of the first screw 2. The second screw 3 is respectively fastened to the base 1 and the fixed block 4 by locking members 5. The base 1 is circular and has a slot 6.

[0035] The end of the first screw rod 2 close to the base 1 is integrally formed with a conical head 7, and the end of the first screw rod 2 away from the base 1 is provided with a mounting hole 8, and the axis of the mounting hole 8 is perpendicular to the axis of the first screw rod 2. The staff inserts one end of the force wrench through the mounting hole 8 and manually rotates the force wrench, and the first screw rod 2 moves downward until it contacts the transmission shaft sleeved on the bearing, and continues to apply external force to rotate the transmission shaft to separate the transmission shaft from the bearing. The sharp part of the conical head 7 on the first screw rod 2 helps to eject the transmission shaft.

[0036] See also Figure 2 As shown, the locking member 5 includes a gasket 51 and a nut 52. One end of the second screw rod 3 passing through the base 1 is threadedly matched with the nut 52. The second screw rod 3 passes through the fixing block 4 and is threadedly matched with the nut 52. The gasket 51 located between the fixing block 4 and the nut 52 is sleeved on the second screw rod 3. Within the predetermined service life, the tightness between the two connecting parts is maintained to prevent the surface of the fixing block 4 from being worn, and the nut 52 is prevented from loosening.

[0037] See also Figure 1 and Figure 2 As shown, the length of the first screw rod 2 is greater than the length of the second screw rod 3, and the shaft diameter of the first screw rod 2 is greater than the shaft diameter of the second screw rod 3. The larger shaft diameter of the first screw rod 2 helps to eject the transmission shaft of the inner ring of the bearing.

[0038] See also Figure 2 As shown, the slot 6 is a U-shaped opening slot, and the slot pitch of the slot 6 is larger than the shaft diameter of the first screw 2. The bearing is sleeved on the transmission shaft, and the outer diameter of the bearing is larger than the diameter of the transmission shaft. Therefore, the larger slot pitch is convenient for the transmission shaft to pass through the slot 6, and the bearing is blocked by the base 1, which is convenient for the transmission shaft and the bearing to be ejected and separated.

[0039] The implementation principle of a convenient bearing ejection tool in the embodiment of the present application is as follows: the second screw 3 passes through the fixing block 4 and the base 1, and the second screw 3 is conveniently fastened to the fixing block 4 and the base 1 through the nut 52, and the first screw 2 rotates downward along the direction of its own axis. During the rotation of the first screw 2, the conical head 7 at its end acts on the inner ring of the bearing, so that the bearing and the transmission shaft sleeved on the bearing are separated from each other, thereby realizing convenient disassembly, saving bearing disassembly time, and effectively improving efficiency. Compared with the use of heavy equipment for disassembly, the ejection tool in this embodiment is small in size and easy to assemble and disassemble.

[0040] Embodiment 2

[0041] Based on the structure of the first embodiment, see Figure 3 As shown, in this embodiment, a movable groove is provided on the inner wall of the clamping groove 6, and a fastening member 9 for abutting the bearing is slidably provided in the movable groove. The fastening member 9 is used to better limit the bearing, so that the transmission shaft and the bearing can be separated.

[0042] See also Figure 4 As shown, the abutting member 9 includes a abutting bolt 91 and a abutting plate 92. The abutting plate 92 is slidably arranged in the movable groove. The abutting bolt 91 penetrates the base 1 and the abutting plate 92 and rotates to cooperate. The abutting bolt 91 and the base 1 are threadedly matched. The end face of the abutting plate 92 is in contact with the movable groove, and the intersection of the concave parts of the abutting plates 92 on both sides and the first screw rod 2 are located on the same axis, so that the axis of the bearing and the axis of the first screw rod 2 are better aligned. By screwing the abutting bolt 91, the abutting bolt 91 drives the abutting plate 92 to approach the outer ring of the bearing along the movable groove, so that the abutting plate 92 and the outer ring of the bearing are in contact, which helps the bearing limit to separate the transmission shaft from the bearing.

[0043] See also Figure 3 and Figure 4 As shown, the side of the abutting plate 92 facing the bearing is a smooth arc surface. The arc surface helps to fit the bearing surface, making it easier for the abutting plate 92 and the outer ring of the bearing to abut against each other. The arc surface abuts against the outer surface of the bearing, and the abutting plates 92 on both sides do not form a complete circle, which is convenient for abutting against bearings of different outer diameters and improves the versatility of bearing disassembly.

[0044] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A portable bearing ejection tool, characterized in that: The invention comprises a base (1), a first screw rod (2), a second screw rod (3) and a fixed block (4); the fixed block (4) and the base (1) are arranged at a certain height; the first screw rod (2) passes through the fixed block (4); the first screw rod (2) and the fixed block (4) are threadedly matched; the second screw rod (3) is arranged on both sides of the first screw rod (2) along the axis thereof; the second screw rod (3) is respectively fastened to the base (1) and the fixed block (4) by means of a locking member (5); the base (1) is circular; and a slot (6) is provided on the base (1).

2. A portable bearing ejection tool according to claim 1, characterized in that: A conical top (7) is integrally formed at one end of the first screw (2) close to the base (1), and a mounting hole (8) is provided at one end of the first screw (2) away from the base (1), wherein the axis of the mounting hole (8) and the axis of the first screw (2) are perpendicular to each other.

3. A portable bearing ejection tool according to claim 1, characterized in that: The locking member (5) comprises a gasket (51) and a nut (52); one end of the second screw rod (3) passes through the base (1) and is threadedly engaged with the nut (52); the second screw rod (3) passes through the fixing block (4) and is threadedly engaged with the nut (52); the gasket (51) located between the fixing block (4) and the nut (52) is sleeved on the second screw rod (3).

4. A portable bearing ejection tool according to claim 1, characterized in that: The length of the first screw (2) is greater than the length of the second screw (3), and the shaft diameter of the first screw (2) is greater than the shaft diameter of the second screw (3).

5. A portable bearing ejection tool according to claim 1, characterized in that: The clamping groove (6) is U-shaped, and the groove pitch of the clamping groove (6) is greater than the shaft diameter of the first screw rod (2).

6. A portable bearing ejection tool according to claim 1, characterized in that: A movable groove is provided on the inner wall of the clamping groove (6), and a tightening member (9) for abutting against the bearing is slidably arranged in the movable groove.

7. A portable bearing ejection tool according to claim 6, characterized in that: The clamping member (9) comprises a clamping bolt (91) and a clamping plate (92); the clamping plate (92) is slidably arranged in a movable groove; the clamping bolt (91) passes through the base (1) and the clamping plate (92) for rotational engagement; the clamping bolt (91) and the base (1) are threadedly engaged.

8. A portable bearing ejection tool according to claim 7, characterized in that: The side of the abutting plate (92) facing the bearing is a smooth arc-shaped surface.

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