Bearing dismounting and mounting device

Abstract

The utility model relates to a bearing disassembling and assembling device which is used for disassembling and assembling a bearing and comprises a fixing frame, a lifting mechanism and a plurality of sleeves of different specifications. An adjusting assembly capable of freely adjusting the height is arranged at the bottom of the fixing frame. The sleeves are detachably installed on the adjusting assembly, and the sleeves of different specifications are provided with through holes of different radiuses. The lifting mechanism comprises a pressing plate, a telescopic power assembly and a plurality of press-in adapters of different specifications, the telescopic power assembly is connected to the top of the fixing frame, the pressing plate is connected to the bottom of the telescopic power assembly, and the telescopic power assembly can drive the pressing plate to reciprocate in the axial direction of the sleeve. The press-in adapters are detachably mounted on the bottom surface of the pressing plate, the bottom ends of the press-in adapters are provided with circular crimping planes, and the press-in adapters with different specifications have crimping planes with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly of mechanical equipment bearings, in particular to a bearing disassembly and assembly device. Background Art

[0002] Bearings are an important component that supports mechanical rotating bodies and can reduce the friction coefficient of mechanical rotating bodies during movement. Nowadays, when installing and repairing mechanical equipment, bearings are often worn after working for a long time, so it is often necessary to disassemble and install bearing components. However, traditional bearing disassembly and assembly tools, such as the bearing disassembly and assembly devices involved in the invention patent with application number CN202210334228.9 and the utility model patent with application number CN202120025104.3, have the following shortcomings in actual use:

[0003] 1. Lack of adaptability: Traditional bearing disassembly and assembly tools are difficult to adapt to large-sized bearings during use, which makes it difficult to properly fix or adapt the bearings during the disassembly and assembly process, increasing the difficulty of disassembly and assembly and the risk of damaging the bearings; in addition, traditional bearing disassembly and assembly tools are often only suitable for specific types or brands of bearings, and cannot adapt to other types or brands of bearings, which greatly limits the scope of use and adaptability of the tools and greatly increases the cost of use and maintenance.

[0004] 2. Poor durability: Traditional bearing disassembly and assembly tools have poor durability due to their own materials or their own structure. When used frequently or when handling larger bearings, they often deform, become damaged, or even lose their ability to work, which has a great impact on their effectiveness and service life.

[0005] 3. Inconvenient operation: Traditional bearing disassembly and assembly tools often have inconvenient operation problems, including unreasonable handle design, difficulty in accurately controlling the operating force, and complicated tools during the disassembly and assembly process. These problems greatly increase the difficulty of operation and reduce work efficiency.

[0006] 4. Low safety: Traditional bearing disassembly and assembly tools usually have hidden dangers in use safety. For example, the tool may suddenly slip or loosen, causing unexpected injuries to the operator. For example, the lack of protective devices makes it difficult to effectively protect the operator.

[0007] In summary, there is an urgent need for a bearing removal tool that is more comprehensive, durable, easy to operate and safe in design and manufacture. Utility Model Content

[0008] In view of the defects of the prior art mentioned above, the technical problem to be solved by the utility model is to provide a bearing disassembly and assembly device, which can complete the installation and disassembly of bearings of various models and sizes, is simple to operate, does not damage the bearings, and can effectively ensure the safety of operators.

[0009] To achieve the above-mentioned purpose, the utility model provides a bearing disassembly and assembly device for disassembling and installing bearings, comprising a fixing frame, a lifting mechanism and a plurality of sleeves of different specifications; an adjustment component capable of freely adjusting the height is provided at the bottom of the fixing frame; the sleeve is detachably mounted on the adjustment component, and sleeves of different specifications have through holes of different radii; the lifting mechanism comprises a pressure plate, a telescopic power component and a plurality of press-fit adapters of different specifications, the telescopic power component is connected to the top of the fixing frame, the pressure plate is connected to the bottom of the telescopic power component, and the telescopic power component can drive the pressure plate to reciprocate along the axial direction of the sleeve, the press-fit adapter is detachably mounted on the bottom surface of the pressure plate, the bottom end of the press-fit adapter is provided with a circular crimping plane, and press-fit adapters of different specifications have crimping planes of different diameters.

[0010] Furthermore, the lifting mechanism also includes a spring, which connects the fixing frame and the pressing plate, and when the pressing plate moves downward, the spring can apply an upward elastic force to the pressing plate.

[0011] Furthermore, the telescopic power assembly includes an electric cylinder, a pneumatic cylinder or a hydraulic cylinder, and the piston rod of the telescopic power assembly faces upward and is fixedly connected to a fixing frame, and the pressure plate is fixedly connected to the bottom end of the cylinder body.

[0012] Furthermore, the fixing frame includes a base, and the base is arranged at the bottom of the adjustment component.

[0013] Furthermore, four universal wheels are arranged on the base.

[0014] Furthermore, the fixing frame includes a vertically arranged column, the column is provided with a plurality of mounting holes arranged in a vertical direction, the adjustment assembly is mounted on the column by bolts, and the bolts pass through the adjustment assembly and are installed in the mounting holes.

[0015] As described above, the bearing disassembly and assembly device of the utility model has the following beneficial effects:

[0016] By setting up a lifting mechanism and multiple sleeves of different specifications, the limitation of traditional bearing disassembly and assembly tools that are difficult to adapt to large-size bearings during use is overcome, and the installation and disassembly of bearings of various models and sizes in mechanical equipment can be completed; the safety of operators in the process of installing and disassembling bearings is effectively guaranteed, the occurrence of accidents is reduced, and when installing and disassembling bearings, the bearings and parts around the bearings can be protected to a certain extent to avoid damage and protect the integrity of the equipment; the efficiency of bearing installation and disassembly can also be improved, and the time cost and labor cost in the maintenance process can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the bearing disassembly and assembly device in the utility model.

[0018] Figure 2 It is the front view of the bearing disassembly and assembly device in the utility model.

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

[0020] Description of Figure Numbers

[0021] 1. Fixed frame, 101. Base, 102. Adjustment assembly, 103. Column, 2. Lifting mechanism, 201. Pressing plate, 202. Telescopic power assembly, 203. Spring, 204. Press-in adapter, 3. Sleeve, 4. Universal wheel, 5. Bearing, 6. Bearing seat DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0024] See also Figures 1 to 3The utility model provides a bearing disassembly and assembly device for disassembling and installing a bearing 5, comprising a fixing frame 1, a lifting mechanism 2 and a plurality of sleeves 3 of different specifications; the fixing frame 1 can fix the remaining components of the bearing disassembly and assembly device and can reduce noise and vibration, and an adjustment component 102 capable of freely adjusting the height is arranged at the bottom of the fixing frame 1; the sleeve 3 is detachably mounted on the adjustment component 102, and sleeves 3 of different specifications have through holes of different radii; the lifting mechanism 2 comprises a pressing plate 201, a telescopic power component 202 and a plurality of press-fit adapters 204 of different specifications, and the telescopic power component 2 02 is connected to the top of the fixed frame 1, the pressure plate 201 is connected to the bottom of the telescopic power component 202, and the telescopic power component 202 can drive the pressure plate 201 to reciprocate along the axial direction of the sleeve 3, and the press-in adapter 204 is detachably installed on the bottom surface of the pressure plate 201. The bottom end of the press-in adapter 204 is provided with a circular crimping plane, and the crimping plane is perpendicular to the moving direction of the telescopic component 203. Different specifications of press-in adapters 204 have crimping planes of different diameters. The interior and crimping plane of the press-in adapter 204 can open a crimping inner hole according to the actual installation situation of the bearing 5.

[0025] The basic working principle of the bearing disassembly and assembly device involved in the utility model is as follows: the bearing disassembly and assembly device can be used for disassembly and assembly of a bearing 5 on a bearing seat 6 or a shaft. When installing the bearing 5, the height of the adjustment component 102 is adjusted according to the actual size of the bearing seat 6 or the shaft, and then the bearing seat 6 or the shaft is fixed on the sleeve 3. The bearing seat 6 can be set on the end face of the sleeve 3, and the shaft can be set in the through hole of the sleeve 3, and one end of the shaft extends out of the sleeve 3. The bearing 5 is placed on the bearing seat 6 or the shaft, and it is ensured that the outer side surface of the outer ring of the bearing is aligned with the bearing hole of the bearing seat 6, or the inner side surface of the inner ring of the bearing is aligned with the shaft; according to the actual size of the bearing 5 and the actual size of the shaft, a press-fit adapter 204 of appropriate specifications is selected, and the diameter of the crimping plane on the press-fit adapter 204 is larger than the inner diameter of the inner ring of the bearing. If a crimping inner hole is provided on the crimping plane, the diameter of the crimping inner hole is larger than the diameter of the shaft, so as to avoid the shaft during crimping; when the telescopic power component 202 is working, it can drive the pressure plate 201 and the press-fit adapter 204 to move toward the direction of the sleeve 3, and the crimping plane of the press-fit adapter 204 can slowly contact the bearing 5, which can provide stable support on the one hand, and the pressure on the crimping plane can The bearing 5 is evenly distributed on the bearing 5 until the bearing 5 is completely installed in the bearing hole of the bearing seat 6, and the crimping plane is completely in contact with the end face of the bearing seat 6 at this time, or until the bearing 5 is located in the correct installation position on the shaft, and the shaft enters the inner cavity of the crimping inner hole at this time, which can protect the bearing 5 to a certain extent and prevent the bearing 5 from being damaged during installation; after the bearing 5 is installed, when the telescopic power component 202 is reset, it can drive the pressure plate 201 and the press-fit adapter 204 to move toward the top of the fixed frame 1, and then the staff checks the installation of the bearing 5 to ensure that the outer side surface of the outer ring of the bearing is completely aligned with the bearing hole of the bearing seat 6, or the inner side surface of the inner ring of the bearing is completely aligned with the shaft, and the bearing 5 is located in the correct installation position on the shaft without looseness or offset; during the installation of the bearing 5, the lifting mechanism 2 works stably and reliably, and the staff can stay away from the bearing disassembly and assembly device when the drive component 202 is started, which can effectively ensure the safety of the operator when installing the bearing 5 and improve the installation efficiency of the bearing 5.When removing the bearing 5 from the bearing seat 6, a sleeve 3 of appropriate specifications is selected according to the actual size of the bearing 5, the aperture of the sleeve 3 is larger than the outer diameter of the outer ring of the bearing 5, and then the bearing seat 6 with the bearing 5 installed is placed on the upper end surface of the sleeve 3, and a press-fit adapter 204 of appropriate specifications is selected according to the actual size of the bearing 5, the diameter of the pressing surface on the press-fit adapter 204 is larger than the inner diameter of the inner ring of the bearing and smaller than the outer diameter of the outer ring of the bearing, and the telescopic power component 202 drives the press-fit adapter 204 to slowly contact the bearing 5, and the pressing surface is pressed on the bearing 5 until the outer side surface of the outer ring of the bearing is completely separated from the bearing hole of the bearing seat 6, and the bearing 5 falls off from the through hole of the sleeve 3; when removing the bearing 5 from the shaft, the aperture of the sleeve 3 Smaller than the outer diameter of the outer ring of the bearing 5 and larger than the outer diameter of the shaft, then the shaft with the bearing 5 installed is placed in the through hole inside the sleeve 3, and the bearing 5 is placed on the upper end face of the sleeve 3, the diameter of the crimping plane on the press-fit adapter 204 is smaller than the inner diameter of the inner ring of the bearing, and the telescopic power component 202 drives the press-fit adapter 204 to slowly contact the shaft, and the crimping plane is pressed on the upper end face of the shaft until the shaft is completely separated from the inner side surface of the inner ring of the bearing, and the shaft falls off from the through hole of the sleeve 3; during the disassembly process, the risk of damage to surrounding components by the bearing 5 can be reduced, the integrity of the bearing 5 can be protected, the recovery of the bearing 5 is facilitated, and the risk of accidents to operators can be reduced, reducing the time cost and labor cost during the maintenance process.

[0026] See also Figures 1 to 3 The present invention is further described below with a specific embodiment:

[0027] In this embodiment, see Figure 3 As a preferred design, the lifting mechanism 2 also includes a spring 203, which connects the fixed frame 1 and the pressure plate 201, and when the pressure plate 201 moves downward, the spring 203 is in an elastic energy storage state. When the telescopic power assembly 202 is reset, the spring 203 can apply an upward elastic force to the pressure plate 201, thereby providing a certain power for the telescopic power assembly 202 to assist the telescopic power assembly 202 to retract. In addition, the spring 203 can also improve the stability of the installation of the pressure plate 201.

[0028] In this embodiment, see Figure 3 As a preferred design, the telescopic power assembly 202 adopts a hydraulic cylinder, and may also adopt an electric cylinder or a pneumatic cylinder. The piston rod of the telescopic power assembly 202 faces upward and is fixedly connected to the fixed frame 1, and the pressure plate 201 is fixedly connected to the bottom end of the cylinder body. When the piston rod of the telescopic power assembly 202 extends relative to the cylinder body, the cylinder body moves downward, thereby driving the pressure plate 201 to move downward. When the piston rod is retracted, the cylinder body moves downward. The telescopic power assembly 202 has a compact structure, executes actions quickly, is easy to use and efficient. In other embodiments, the telescopic power assembly 202 may also be a cylinder body fixed on the fixed frame 1, and the piston rod moves up and down to drive the pressure plate 201.

[0029] In this embodiment, see Figure 2 As a preferred design, the fixing frame 1 includes a base 101, which is arranged at the bottom of the adjustment component 102. The base 101 can provide stable support and balancing force for the bearing disassembly and assembly device.

[0030] In this embodiment, see Figure 1 As a preferred design, the base 101 is provided with four universal wheels 4, which can move in multiple directions, have high flexibility, and adapt to various areas.

[0031] In this embodiment, see Figure 1 The fixing frame 1 includes a vertically arranged column 103, on which a plurality of vertically arranged mounting holes are provided. The adjustment component 102 is installed on the column 103 by bolts, and the bolts pass through the adjustment component 102 and are installed in the mounting holes. By adjusting the adjustment component 102 to be installed on the mounting holes at different height positions, the height position can be adjusted.

[0032] As can be seen from the above, the bearing disassembly and assembly device of the utility model has the following beneficial effects:

[0033] By providing a lifting mechanism 2 and a plurality of sleeves 3 of different specifications, and providing a plurality of press-fit adapters 204 of different specifications in the lifting mechanism 2, the limitation of traditional bearing disassembly and assembly tools that are difficult to adapt to large-size bearings during use is overcome, and the installation and disassembly of bearings 5 ​​of various models and sizes in mechanical equipment can be completed; the safety of operators during the installation and disassembly of bearings 5 ​​is effectively guaranteed, the occurrence of accidents is reduced, and when installing and disassembling bearings 5, the bearings 5 ​​and the parts around the bearings 5 ​​can be protected to a certain extent to avoid damage and protect the integrity of the equipment; the efficiency of the installation and disassembly of the bearings 5 ​​can also be improved, and the time cost and labor cost during the maintenance process can be reduced.

[0034] In summary, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0035] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A bearing disassembly and assembly device for disassembling and installing a bearing (5), characterized in that: The invention comprises a fixing frame (1), a lifting mechanism (2) and a plurality of sleeves (3) of different specifications; an adjustment component (102) capable of freely adjusting the height is arranged at the bottom of the fixing frame (1); the sleeve (3) is detachably mounted on the adjustment component (102); sleeves (3) of different specifications have through holes of different radii; the lifting mechanism (2) comprises a pressing plate (201), a telescopic power component (202) and a plurality of press-fit adapters (204) of different specifications; the telescopic power component ( The pressing plate (201) is connected to the bottom of the telescopic power assembly (202), and the telescopic power assembly (202) can drive the pressing plate (201) to reciprocate along the axial direction of the sleeve (3). The press-in adapter (204) is detachably mounted on the bottom surface of the pressing plate (201), and a circular crimping plane is provided at the bottom end of the press-in adapter (204), and press-in adapters (204) of different specifications have crimping planes of different diameters.

2. The bearing disassembly and assembly device according to claim 1, characterized in that: The lifting mechanism (2) further comprises a spring (203), wherein the spring (203) connects the fixing frame (1) and the pressing plate (201), and when the pressing plate (201) moves downward, the spring (203) can exert an upward elastic force on the pressing plate (201).

3. The bearing disassembly and assembly device according to claim 1, characterized in that: The telescopic power assembly (202) comprises an electric cylinder, a pneumatic cylinder or a hydraulic cylinder, and the piston rod of the telescopic power assembly (202) faces upward and is fixedly connected to the fixing frame (1), and the pressing plate (201) is fixedly connected to the bottom end of the cylinder body.

4. The bearing disassembly and assembly device according to claim 1, characterized in that: The fixing frame (1) comprises a base (101), and the base (101) is arranged at the bottom of the adjustment component (102).

5. The bearing disassembly and assembly device according to claim 4, characterized in that: Four universal wheels (4) are arranged on the base (101).

6. The bearing disassembly and assembly device according to claim 1, characterized in that: The fixing frame (1) comprises a vertically arranged column (103), the column (103) being provided with a plurality of vertically arranged mounting holes, the adjustment assembly (102) being mounted on the column (103) by means of bolts, and the bolts passing through the adjustment assembly (102) and being mounted in the mounting holes.

Images