CN111300007A

CN111300007A - Multifunctional bearing press-in device

Info

Publication number: CN111300007A
Application number: CN202010158206.2A
Authority: CN
Inventors: 蔡维; 陈奎; 吴晓东; 张大威; 谷翠军; 谭宇文; 仇爽; 杨军; 祁德建; 易统; 马斌; 张星; 李万生; 张明广
Original assignee: Chongqing CRRC Sifang Institute Intelligent Equipment Technology Co Ltd
Current assignee: Chongqing CRRC Sifang Institute Intelligent Equipment Technology Co Ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-06-19

Abstract

The invention belongs to the field of machining, and particularly relates to a multifunctional bearing press-in device. The invention provides a multifunctional bearing press-in device, which is used for mounting a bearing into a shaft or a sleeve and comprises an underframe, a positioning assembly and a bearing press-in assembly. The positioning assembly and the bearing press-in assembly are both arranged on the same side of the bottom frame. The positioning assembly is used for fixing the shaft or the sleeve, and the bearing pressing assembly is used for installing the bearing into the shaft or the sleeve. The bearing subassembly of impressing includes axis of rotation, thrust subassembly and supporting seat, and the axis of rotation is connected with the transmission of thrust subassembly, and the axis of rotation rotates to be installed in the supporting seat, and the thrust subassembly runs through to be installed in the supporting seat, and the rotation of axis of rotation can drive the thrust subassembly and remove along the thickness direction of supporting seat. The multifunctional bearing press-in device provided by the invention simplifies the process of bearing press-in, improves the working efficiency of workers, and has the advantages of simple structure and accurate positioning.

Description

Multifunctional bearing press-in device

Technical Field

The invention relates to the field of machining, in particular to a multifunctional bearing press-in device.

Background

The bearing is a common important part in modern mechanical equipment, and has the main functions of supporting a mechanical rotating body, reducing the friction coefficient in the motion process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body. The bearing is mainly installed in pivot, sleeve. When the bearing is matched in a transition or interference fit mode, a certain acting force is needed to enable the bearing to be sleeved on the rotating shaft or arranged in the sleeve. Therefore, the installation of the bearing has a great influence on the realization and transmission of the transmission. The existing pressing-in of the bearing in the industry is generally realized by manually beating or pressing in through other equipment, the pressing-in process is complex, the efficiency is low, the positioning in the pressing-in process is inaccurate, and the workpiece is easily damaged.

Disclosure of Invention

The invention provides a multifunctional bearing press-in device, aiming at solving the problems of more complex bearing press-in process, lower efficiency and inaccurate positioning in the press-in process in the prior art, and aiming at: the process of bearing impressing is simplified, the working efficiency and the working quality of workers are improved, and the device is simple in structure and accurate in positioning.

The technical scheme adopted by the invention is as follows:

a multifunctional bearing press-in device is used for installing a bearing into a shaft or a sleeve and comprises a base frame, a positioning assembly and a bearing press-in assembly. The positioning assembly and the bearing press-in assembly are both arranged on the same side of the bottom frame. The positioning assembly is used for fixing the shaft or the sleeve, and the bearing pressing assembly is used for installing the bearing into the shaft or the sleeve. The pressing-in assembly comprises a rotating shaft, a thrust assembly and a supporting seat. The axis of rotation is connected with the transmission of thrust subassembly, and the axis of rotation rotates to be installed in the supporting seat, and the thrust subassembly runs through to be installed in the supporting seat. The rotation of axis of rotation can drive thrust unit and move along the thickness direction of supporting seat, and thrust unit is arranged in axle or sleeve with the bearing.

In order to improve the work efficiency that the bearing was impressed in the trade, reduce workman's work load, this technical scheme is provided with chassis, locating component and bearing subassembly of impressing to can realize semi-mechanization and pack the bearing into axle or sleeve, avoid the workman to lead to the fact the damage to the work piece when carrying out the bearing pressure through modes such as beating. The workman utilizes this bearing push in device to carry out the during operation, need carry out simple fixed with axle or sleeve in advance with the bearing, then place axle or sleeve and fix on the locating component, it can to use the bearing push in subassembly to push in the bearing again. The operation process is simple, the working efficiency is greatly improved, and the workpiece is not easy to damage.

Preferably, the press-in sleeve and the thrust disk are internally provided with a passage through the shaft.

Preferably, the thrust assembly includes a thrust disc, a moving guide shaft and a press-in sleeve. The thrust disc is connected with the rotating shaft (for example, in a connection mode of threaded connection, screw connection and the like), the thrust disc is connected with the thrust disc through a movable guide shaft, the movable guide shaft penetrates through the supporting seat, and the press-in sleeve is connected with the thrust disc.

Preferably, the number of the movable guide shafts is at least two, and the plurality of the movable guide shafts are circumferentially arranged on the supporting seat at intervals.

Preferably, a handle is arranged at one end of the rotating shaft, which is far away from the supporting seat.

Preferably, a bearing set is arranged in the supporting seat and used for mounting the rotating shaft.

The bearing can be more simply and efficiently installed into the shaft or the sleeve by the prior scheme, so that the condition that the pressing-in accuracy of the bearing is reduced due to uneven stress of the bearing in the pressing-in process is avoided; the bearing press-in process is more stable.

Preferably, the positioning assembly comprises a positioning support seat, a first positioning installation seat, a second positioning installation seat and a positioning fixing shaft. The location supporting seat is installed in the chassis, and first location mount pad links to each other with the location supporting seat through the location fixed axle, and second location mount pad links to each other with the location supporting seat, and first location mount pad and second location mount pad cooperate jointly to realize counter shaft or telescopic fixed.

Above preferred scheme can realize the fixed of axle or sleeve, has avoided in the bearing pressfitting in-process, and axle or sleeve receive the bearing subassembly to transmit under the power or other external force effects, and the condition that the position changes takes place. The pressing precision of the bearing is further improved, and the working efficiency is improved.

Preferably, the number of the bearing press-in components and the number of the positioning components are respectively two, the two bearing press-in components are respectively and symmetrically arranged at two ends of the underframe, and the positioning components are arranged between the two bearing press-in components.

When both ends of the shaft or the sleeve need to be pressed into the bearing, both ends of the multifunctional bearing pressing device can work simultaneously. The working requirements under various conditions are met, and the working efficiency is greatly improved.

Preferably, the chassis is provided with the guiding axle, and the guiding axle is all located to locating component and bearing push in the subassembly cover. The positions of the positioning assembly and the bearing press-in assembly are not easy to change, and the accuracy of the device in working is further improved.

Preferably, the positioning assembly and the bearing press-in assembly are detachably connected with the guide shaft. The user can replace the components conveniently.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. this technical scheme is provided with chassis, locating component and bearing subassembly of impressing to can realize semi-mechanization and pack the bearing into axle or sleeve, avoid the workman when carrying out the bearing pressure through modes such as beating, the bearing atress is inhomogeneous and causes the damage to the accuracy that reduces the work piece even to the work piece. The workman utilizes this bearing push in device to carry out the during operation, need carry out simple fixed with axle or sleeve in advance with the bearing, then place axle or sleeve and fix on the locating component, it can to use the bearing push in subassembly to push in the bearing again. The operation process is simple, the working efficiency is greatly improved, and the workpiece is not easy to damage.

2. When the bearing press-in assembly works, one end of the rotating shaft is connected with the thrust assembly, and the other end of the rotating shaft is connected with the supporting seat, so that the rotating shaft is fixed. The supporting seat can fix the thrust assembly, and the bearing is guaranteed to be stressed uniformly and the stress direction is not changed in the pressing-in process. The rotating shaft is in transmission connection with the thrust assembly, and the rotating shaft drives the thrust assembly to move so as to press the bearing in.

3. The thrust disc is connected with the thrust disc through a movable guide shaft, and the movable guide shaft penetrates through the supporting seat to determine the movement direction of the thrust assembly. The thrust disc is in threaded connection or lead screw connection with the rotating shaft, and the thrust assembly can be driven to move by rotating the rotating shaft. The press-in sleeve is connected with the thrust disc, and a user can replace the corresponding press-in sleeve according to the size of the pressed-in bearing.

4. A plurality of removes guide shaft circumference interval and sets up in the supporting seat. Preferably, three movable guide shafts are arranged, and the three movable guide shafts form a triangular outline, so that the connection between the thrust disc and the thrust disc can be more stable.

5. The rotation shaft is more labor-saving due to the arrangement of the handle, and a user can use the multifunctional bearing pressing-in device more conveniently.

6. The bearing set is arranged in the supporting seat and is used for mounting the rotating shaft, so that the frictional resistance between the supporting seat and the rotating shaft can be reduced, and the abrasion of the supporting seat to the rotating shaft is reduced; the bearing group plays the fixed action to the axis of rotation, makes the axis of rotation steady rotation.

7. The positioning assembly can fix the shaft or the sleeve, so that the length direction of the shaft or the sleeve is consistent with the length direction of the thrust assembly, and the pressing-in accuracy of the bearing is improved; in addition, in the bearing press-in process, the shaft or the sleeve can be subjected to the force transmitted by the thrust assembly, and the positioning assembly can enable the position of the shaft or the sleeve not to be changed when the shaft or the sleeve is subjected to the force.

8. When both ends of the shaft or the sleeve need to be pressed into the bearing, both ends of the multifunctional bearing pressing device can work simultaneously. The working requirements under various conditions are met, and the working efficiency is greatly improved.

9. The guide shaft is sleeved with the positioning component and the bearing press-in component. The positions of the positioning assembly and the bearing press-in assembly are not easy to change, and the accuracy of the device in working is further improved.

10. When partial components of the device are in failure or damage, users can conveniently detach and replace the damaged components.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of a multi-functional bearing press-in device provided by the invention;

FIG. 2 is a schematic structural view of a bearing press-in assembly provided by the present invention;

FIG. 3 is a schematic view of a combined rotary shaft and thrust assembly provided by the present invention;

fig. 4 is a schematic structural diagram of a positioning assembly provided by the present invention.

Wherein: 100-a multi-functional bearing press-in device; 110-a chassis; 130-a positioning assembly; 150-bearing press-in assembly; 170-a thrust assembly; 190-a guide shaft; 131-positioning a supporting seat; 133-a first positioning mount; 135-a second positioning mount; 137-positioning the fixed shaft; 151-rotating shaft; 153-a support base; 155-a guide bushing; 157-a bearing set; 159-deep groove roller ball bearing; 161-angular contact ball bearing; 163-a sealing cover; 165-thrust bearing seat; 167-a handle; 171-a thrust disc; 173-a thrust disk; 175-a mobile guide shaft; 177-pressing in the sleeve; 191-guide holes.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The present invention will be described in detail with reference to fig. 1 to 4.

Example 1

Referring to fig. 1, fig. 1 is a schematic structural diagram of a multi-functional bearing press-in device 100. A multi-functional bearing press-in apparatus 100 for installing a bearing into a shaft or sleeve includes a base frame 110, a positioning assembly 130, and a bearing press-in assembly 150. The positioning assembly 130 and the bearing press-in assembly 150 are installed on the same side of the bottom chassis 110, and the bottom chassis 110 is used for fixing the positioning assembly 130 and the bearing press-in assembly 150. The locating assembly 130 is used to secure a shaft or sleeve and the bearing press-in assembly 150 is used to load a bearing into the shaft or sleeve. When a user mounts the positioning assembly 130 and the bearing press-in assembly 150 on the bottom bracket 110, the user only needs to align the mounting holes (not shown) on the positioning assembly 130 and the bearing press-in assembly 150 with the mounting holes (not shown) on the bottom bracket 110, and then fix the positioning assembly 130 and the bearing press-in assembly with screws. If a user needs to perform self-drilling installation on the bottom frame 110, the axes of the positioning assembly 130 and the bearing press-in assembly 150 need to coincide with the axis of the bottom frame 110, the position of an installation hole (not shown) is determined, then drilling is performed, and then the positioning assembly 130 and the bearing press-in assembly 150 are installed on the bottom frame 110, so that the bearing press-in assembly 150 can accurately install the bearing into the shaft or the sleeve fixed by the positioning assembly 130 when the multifunctional bearing press-in device 100 works. The bearing press-in device 100 is used for press-in work of the bearing, the situations that the press-in position is inaccurate and a workpiece is damaged due to uneven stress of the bearing in the press-in process can be avoided, the operation process is simple, and the working efficiency is improved.

Referring to fig. 2 and 3, fig. 2 is a schematic view illustrating a structure of the bearing press-fitting assembly 150, and fig. 3 is a schematic view illustrating a combined structure of the rotating shaft 151 and the thrust assembly 170. The bearing press-fitting assembly 150 includes a rotating shaft 151, a thrust assembly 170, and a support base 153. The axis of rotation 151 is connected with thrust unit 170 transmission, and axis of rotation 151 rotates and installs in supporting seat 153, and supporting seat 153 and thrust unit 170 realize jointly that rotation axis 151 is spacing, guarantee that rotation axis 151 uses the axle center to rotate as the center. A handle 167 is arranged at one end of the rotating shaft 151 far away from the supporting seat 153, and the handle 167 is connected with a clamping groove of the rotating shaft 151. The bearing set 157 is arranged in the supporting seat 153, the bearing set 157 is used for installing the rotating shaft 151, in this embodiment, the bearing set 157 is connected with the clamping groove of the rotating shaft 151, and in other embodiments, the bearing set 157 and the rotating shaft 151 may be connected in other connection modes such as welding. The bearing set 157 can prevent the rotating shaft 151 from being directly connected with the supporting seat 153 to wear the rotating shaft, and can reduce the frictional resistance when the rotating shaft 151 rotates, so that the user can use the bearing set more easily. In the present embodiment, the bearing set 157 is composed of a deep groove roller ball bearing 159 and an angular contact ball bearing 161. The angular ball bearing 161 is installed at the inner side of one end of the rotating shaft 151 near the support seat 153, and the deep groove roller ball bearing 159 is installed at the outer side of one end of the rotating shaft 151 near the support seat 153, thereby realizing that the bearing set 157 can bear both radial and axial loads.

A sealing cover 163 is further disposed on one side of the supporting seat 153 close to the rotating shaft 151, and the rotating shaft 151 penetrates through the sealing cover 163 to be connected with the bearing set 161. A thrust bearing seat 165 is arranged on one side of the supporting seat 153 away from the rotating shaft 151. The sealing cover 163 and the thrust bearing seat 165 are fixed outside the supporting seat 153 by bolts (in other embodiments, threaded connection or other connection methods are also possible), and protect the bearing set 157 inside the supporting seat 153. The thrust bearing base 165 is fitted with a spring (not shown) and a positioning pin (not shown), one end of which is conical. One side of the thrust shaft seat 165, which is far away from the support seat 153, is further provided with a round hole (not shown in the cylinder), and the conical end of the positioning pin shaft penetrates through the round hole (the diameter of the round hole is smaller than that of the positioning pin shaft), so that the round hole can fix the positioning pin shaft. The spring is located the one end that the round hole was kept away from to the location round pin axle. The press-in sleeve 177 and the thrust disk 173 are provided internally with passages (not shown) for passage of the shaft. When the bearing is installed on the mounting shaft, the end of the shaft near the bearing seat 153 can enter the channel inside the press-in sleeve 177 and the thrust disk 173, and the positioning pin contacts the mounting shaft, keeping the mounting shaft coaxial. When the positioning pin shaft is in contact with the mounting shaft, one conical end of the positioning pin shaft enters the thrust shaft seat 165, and the spring is compressed; when the locating pin shaft is separated from the mounting shaft, the spring can push the locating pin shaft back to reset, and one end of the conical locating pin shaft extends out of the round hole.

The thrust assembly 170 is penetratingly mounted on the supporting seat 153, the rotation of the rotating shaft 151 can drive the thrust assembly 170 to move along the thickness direction of the supporting seat 153, and the thrust assembly 170 is used for mounting the bearing in a shaft or a sleeve. Support seat 153 has both played the supporting role to thrust assembly 170, has still played spacing guide effect to thrust assembly 170. When a user uses the bearing press-in component 150 to install a bearing into a shaft or a sleeve, the user only needs to rotate the rotating shaft 151 clockwise, the rotating shaft 151 drives the thrust component 170 to move towards the positioning component 130, one end, close to the positioning component 130, of the thrust component 170 is in contact with the bearing to be pressed in, and the bearing is installed into the shaft or the sleeve; after the bearing is pressed in, when the user needs to reset the thrust assembly 170, the rotating shaft 151 needs to be rotated counterclockwise, so that the thrust assembly 170 moves in a direction away from the positioning assembly 130.

Further, thrust assembly 170 includes a thrust disk 171, a thrust disk 173, a movable guide shaft 175, and a press-in sleeve 177. The thrust disc 171 is connected with the rotating shaft 151 through a screw (in other embodiments, the thrust disc 171 may be connected with the rotating shaft 151 through a screw thread), the rotating shaft 151 is provided with an external thread along the length direction, a first opening (not shown in the figure) is formed in the center of the thrust disc 171, and an internal thread matched with the rotating shaft 151 is formed in the first opening. Thrust disk 171 is connected to thrust disk 173 by a movable guide shaft 175, and thrust disk 171 and thrust disk 173 are each provided with a plurality of second openings (not shown) that match movable guide shaft 175. Both ends of the movable guide shaft 175 are threaded, and both ends of the movable guide shaft 175 pass through the second openings corresponding to the

thrust discs

171 and 173, respectively, and are then fixed by nuts. The number of the movable guide shafts 175 is at least two, the plurality of movable guide shafts 175 are circumferentially arranged on the support base 153 at intervals, in this embodiment, three movable guide shafts (175) are arranged, the three movable guide shafts 175 form a triangular fixing, the thrust disc 171 and the thrust disc 173 can be stably fixed on the movable guide shafts 175, and meanwhile, the thrust assembly 170 can be stably fixed on the support base 171. The press-in sleeve 177 is in threaded connection with the thrust disk 173, the size of the press-in sleeve 177 is divided into multiple specifications, and a user can replace the press-in sleeve 177 with the corresponding specification according to the specification of a bearing to be pressed in.

Further, a guide bushing 155 is movably disposed at a position where the support seat 153 is connected to the thrust assembly 170. Guide bushing 155 prevents thrust assembly 170 from directly contacting support base 153, thereby reducing wear on thrust assembly 170 and support base 153 and extending the useful life of thrust assembly 170 and support base 153.

Referring to fig. 4, fig. 4 is a schematic structural diagram of the positioning assembly 130. The positioning assembly 130 includes a positioning support seat 131, a first positioning installation seat 133, a second positioning installation seat 135 and a positioning fixing shaft 137. The positioning support 131 is mounted to the bottom frame 110. First location mount pad 133 links to each other with location supporting seat 131 through location fixed axle 137, and second location mount pad 135 links to each other with location supporting seat 131, and first location mount pad 133 cooperates with second location mount pad 135 jointly to realize counter shaft or telescopic fixed. The positioning support 131 is in threaded connection with a positioning fixing shaft 137. In this embodiment, the positioning support 131 is connected to the positioning fixing shaft 137 through a screw, a first fixing hole (not shown) is disposed on a side of the positioning support 131 close to the first positioning mounting seat 133, and an internal thread is disposed inside the first fixing hole. And an external thread matched with the internal thread arranged in the first fixing hole is arranged at one end of the positioning fixing shaft 137 connected with the positioning supporting seat 131. The positioning fixing shaft 137 penetrates through the first positioning installation seat 133, and the positioning fixing shaft 137 is detachably connected with the first positioning installation seat 133. The second positioning and mounting seat 135 is detachably connected to the positioning and supporting seat 131. One end of the positioning fixing shaft 137, which is far away from the positioning supporting seat 131, is provided with a thread for mounting a matched nut, and the nut is used for limiting the movement of the first positioning mounting seat 133 along the length direction of the positioning fixing shaft 137. An arc groove (not shown) is further disposed on one side of the first positioning and mounting seat 133 close to the positioning and supporting seat 131, and the arc groove is used for fixing a shaft or a sleeve. One side of the positioning support seat 131 is further provided with an L-shaped groove (not shown in the figure) for mounting a second positioning mounting seat 135, and the second positioning mounting seat 135 is connected with the positioning support seat 131 through a bolt. The second positioning and mounting seat 135 is also provided with an arc-shaped groove (not shown) at a side thereof away from the positioning and supporting seat 131. The arc-shaped groove of the second positioning installation seat 135 and the arc-shaped groove of the first positioning installation seat 133 jointly realize the fixation of the shaft or the sleeve.

In addition, the number of the bearing press-in components (150) and the number of the positioning components (130) are respectively two, the two bearing press-in components 150 are respectively and symmetrically arranged at two ends of the underframe 110, and the positioning component 130 is arranged between the two bearing press-in components 150. In the actual bearing press-in work, the bearings are required to be pressed in at two ends of a shaft or a sleeve in many times, the two ends of the underframe 110 are respectively and symmetrically provided with the bearing press-in components 150, the positioning component 130 is arranged between the two bearing press-in components 150, the bearing press-in work can be simultaneously carried out at two ends of the shaft or the sleeve, and the working efficiency is greatly improved. Moreover, the arrangement can be applied to various situations such as pressing the bearing into one end or two ends of the shaft, pressing the bearing into one end or two ends of the sleeve, pressing the bearing into one end or two ends of the shaft and the sleeve simultaneously, and the like.

The chassis is further provided with a guide shaft 190, the positioning assembly 130 and the bearing press-in assembly 150 are sleeved on the guide shaft 190, and the positioning assembly 130 and the bearing press-in assembly 150 are detachably connected with the guide shaft 190. The positioning assembly 130 and the bearing press-in assembly 150 are provided with guide holes 191, and the positioning assembly 130 and the bearing press-in assembly 150 are connected with the guide shaft 190 through the guide holes 191. The positions of the positioning assembly 130 and the bearing press-in assembly 150 are not easily changed, and it is convenient for a user to replace parts.

In other embodiments, the multi-function bearing press-fitting device 100 further includes a bearing support (not shown), a rotating shaft support (not shown), and a scale (not shown). The bearing support bracket is located between the positioning component 130 and the bearing press-in component 150 and close to the bearing press-in component 150, and the bearing support bracket is installed on the bottom frame 110 for fixing the bearing to be pressed in. The height of the bearing support frame can be adjusted according to the size of the required pressed bearing. One end of the rotary shaft support bracket is mounted to the end of the rotary shaft 151 adjacent the handle 167 between the thrust plate 171 and the handle 167. The rotation shaft 151 is rotatably connected to the rotation shaft support frame. An end of the rotating shaft support bracket remote from the rotating shaft 151 is mounted to the base frame 110. The rotation shaft support frame further fixes the rotation shaft 151. Both ends of the graduated scale are movably connected to the top of the supporting seat 153 and the top of the rotating shaft supporting frame respectively. The graduated scale is used for measuring the moving distance of the thrust disc 171 so as to determine the pressed-in distance of the bearing, and the accuracy of the pressed-in distance of the bearing is greatly improved.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. The multifunctional bearing press-in device is used for installing a bearing into a shaft or a sleeve and is characterized by comprising a base frame (110), a positioning component (130) and a bearing press-in component (150), wherein the positioning component (130) and the bearing press-in component (150) are installed on the same side of the base frame (110), the positioning component (130) is used for fixing the shaft or the sleeve, the bearing press-in component (150) is used for installing the bearing into the shaft or the sleeve, the bearing press-in component (150) comprises a rotating shaft (151), a thrust component (170) and a supporting seat (153), the rotating shaft (151) is in transmission connection with the thrust component (170), the rotating shaft (151) is rotatably installed on the supporting seat (153), the thrust component (170) is installed on the supporting seat (153) in a penetrating mode, and the rotation of the rotating shaft (151) can drive the thrust component (170) to move along the thickness direction of the supporting seat (153) The thrust assembly (170) is used to load the bearing into the shaft or the sleeve.

2. The multi-functional bearing press-in device according to claim 1, wherein the thrust assembly (170) comprises a thrust disc (171), a thrust disc (173), a movable guide shaft (175) and a press-in sleeve (177), the thrust disc (171) is connected with the rotating shaft (151), the thrust disc (171) is connected with the thrust disc (173) through the movable guide shaft (175), the movable guide shaft (175) penetrates through the support base (153), and the press-in sleeve (177) is connected with the thrust disc (173).

3. A multi-function bearing press-in device according to claim 2, characterized in that the press-in sleeve (177) and the thrust disk (173) are provided internally with a passage for passage of the shaft.

4. The multi-functional bearing press-in device according to claim 2, characterized in that the moving guide shafts (175) are provided in at least two numbers, and a plurality of the moving guide shafts (175) are circumferentially spaced from each other and provided in the supporting base (153).

5. The multi-functional bearing press-in device according to claim 1, characterized in that a handle (167) is provided at an end of the rotating shaft (151) away from the supporting base (153).

6. The multi-function bearing press-in device according to claim 1, wherein a bearing set (157) is provided in the supporting base (153), and the bearing set (157) is used for mounting the rotating shaft (151).

7. The multi-functional bearing press-in device according to claim 1, wherein the positioning assembly (130) comprises a positioning support seat (131), a first positioning mount seat (133), a second positioning mount seat (135) and a positioning fixing shaft (137), the positioning support seat (131) is mounted on the chassis (110), the first positioning mount seat (133) is connected with the positioning support seat (131) through the positioning fixing shaft (137), the second positioning mount seat (135) is connected with the positioning support seat (131), and the first positioning mount seat (133) and the second positioning mount seat (135) cooperate together to fix the shaft or the sleeve.

8. The multi-functional bearing press-in device according to claim 1, characterized in that the number of the bearing press-in components (150) and the number of the positioning components (130) are two, the two bearing press-in components (150) are respectively and symmetrically arranged at two ends of the chassis (110), and the positioning component (130) is arranged between the two bearing press-in components (150).

9. The multi-functional bearing press-in device according to any one of claims 1 to 8, characterized in that the chassis (110) is provided with a guide shaft (190), and the positioning assembly (130) and the bearing press-in assembly (150) are both sleeved on the guide shaft (190).

10. The multi-function bearing press-in device according to claim 9, wherein the positioning member (130) and the bearing press-in member (150) are detachably connected to the guide shaft (190).