CN112775899A - Bearing dismounting device and dismounting method - Google Patents

Abstract

The invention discloses a bearing dismounting device and a dismounting method. The bearing dismounting device comprises a chassis provided with an open slot, a first mounting hole and a second mounting hole; the first upright post can be installed in the first installation hole and is provided with a first adjusting piece; the second upright post can be arranged in the second mounting hole and is provided with a second adjusting piece; the pressing plate is provided with a first connecting hole and a second connecting hole; the first fastener is arranged on the first upright column, and the second fastener is arranged on the second upright column; can apply the climbing mechanism who is on a parallel with the axial pressure of axle to the clamp plate, climbing mechanism's one end can with the clamp plate butt, the other end can with axle end face butt. The bearing dismounting device provided by the invention has the advantages that the bearing dismounting device is positioned by the contact of the chassis and the end surface of the bearing to be dismounted, the stress area of the bearing to be dismounted is increased, the bearing to be dismounted is stably stressed, and the phenomena of deviation, deflection or loosening and the like are not easy to occur, so that the possibility of injury to workers is reduced, and the safety of the bearing dismounting work is improved.

Description

Bearing dismounting device and dismounting method

Technical Field

The invention relates to the technical field of disassembling tools, in particular to a bearing disassembling device and a disassembling method.

Background

At present, a common tool for disassembling the bearing is a puller. The puller mainly comprises a rotary handle, a screw rod and a pulling claw. When the device is used, the tip of the screw rod is positioned in the central hole of the shaft end, the pull claw is hooked on the outer ring of the bearing, and the rotating handle is rotated to drive the pull claw to drive the bearing to move outwards along the axial direction for dismounting.

Because the puller is positioned by utilizing the center of the screw rod and the center hole of the shaft end, when the bearing to be detached is arranged at the shaft end without the center hole, the clamping and positioning precision of the puller at the shaft end cannot be ensured, so that the bearing is easy to deviate or skew and the like in the axial outward movement process, and even the pulling claw is loosened at the outer ring of the bearing, so that the worker is injured, and the safety of the bearing detaching work is reduced.

Therefore, how to improve the safety of the bearing dismounting work is a technical problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present invention is directed to a bearing dismounting device to improve the safety of the bearing dismounting operation.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a bearing dismounting device for dismantle and treat the dismantlement bearing, treat that the dismantlement bearing is installed epaxially, bearing dismounting device includes:

the chassis is provided with an open slot, a first mounting hole and a second mounting hole, and the width of the open slot is larger than the diameter of the shaft and smaller than the outer diameter of the bearing to be disassembled;

the first upright post can be installed in the first installation hole, and a first adjusting piece which can move along the height direction of the first upright post is arranged on the first upright post;

the second upright post can be installed in the second installation hole, and a second adjusting piece capable of moving along the height direction of the second upright post is arranged on the second upright post;

the pressing plate is provided with a first connecting hole and a second connecting hole, the first connecting hole can be matched and connected with the first upright column, the second connecting hole can be matched and connected with the second upright column, and the pressing plate is positioned on one side, away from the chassis, of the first adjusting piece and the second adjusting piece;

the first fastener and the second fastener are arranged on one side, far away from the chassis, of the pressing plate, the first fastener is mounted on the first upright post, and the second fastener is mounted on the second upright post;

the jacking mechanism can apply pressure parallel to the axial direction of the shaft to the pressing plate, one end of the jacking mechanism can be abutted against one side, close to the end face of the shaft, of the pressing plate, and the other end of the jacking mechanism can be abutted against the end face of the shaft. Preferably, in the above bearing detaching device, the base plate is circular, and a center line of the base plate and a center line of the open groove are on the same straight line.

Preferably, in the bearing detaching device, the first column and the second column are both screws, and both ends of the screws are provided with threads.

Preferably, in the bearing detaching device, the center of the first mounting hole and the center of the second mounting hole are symmetrically arranged on both sides of the center line of the open slot, and the center distance between the first mounting hole and the second mounting hole is larger than the outer diameter of the bearing to be detached.

Preferably, in the bearing dismounting device, the open groove is a U-shaped groove.

Preferably, in the above bearing dismounting device, each of the first adjusting member and the second adjusting member is an adjusting nut.

Preferably, in the above bearing detaching device, the first connection hole and the second connection hole are both oblong holes, and a length direction of the first connection hole and the second connection hole is parallel to a length direction of the pressure plate.

Preferably, in the above bearing detaching device, each of the first fastening member and the second fastening member is a fastening nut.

Preferably, in the above bearing detaching device, the lifting mechanism is a jack.

Preferably, in the above bearing detaching device, the pressure plate is made of a steel plate.

A bearing dismounting method using the bearing dismounting device as described above, comprising the steps of:

s1: sleeving the chassis on the outer circumference of the shaft through the open slot;

s2: adjusting the height of the first adjusting piece on the first upright post and the height of the second adjusting piece on the second upright post;

s3: judging whether the plane of the pressure plate is parallel to the plane of the chassis, if not, executing step S2, and if so, executing step S4;

s4: installing a first fastener and a second fastener;

s5: enabling one end of the jacking mechanism to abut against one side, close to the end face of the shaft, of the pressing plate, and after the other end of the jacking mechanism abuts against the end face of the shaft, starting the jacking mechanism to enable the jacking mechanism to apply pressure to the pressing plate in the dismounting direction of the bearing to be dismounted;

s6: judging whether the bearing to be disassembled is separated from the shaft, if so, executing the step S7, otherwise, executing the step S5;

s7: and taking down the bearing to be disassembled to finish the disassembly.

When the bearing dismounting device provided by the invention is used, because the width of the open slot on the chassis is larger than the diameter of the shaft and smaller than the outer diameter of the bearing to be dismounted, the chassis can be sleeved on the outer circumference of the shaft through the open slot and is contacted with the end surface of the bearing, the first upright post is arranged in the first mounting hole, the second upright post is arranged in the second mounting hole, then the first connecting hole of the pressing plate is matched and connected with one end of the first upright post, which is far away from the chassis, the second connecting hole is matched and connected with one end of the second upright post, which is far away from the chassis, the height of the first adjusting piece is adjusted along the height direction of the first upright post, the height of the second adjusting piece is adjusted along the height direction of the second upright post, the pressing plate is further adjusted, the plane of the pressing plate is parallel to the plane of the chassis, then the first fastening piece is arranged on the first upright post, place climbing mechanism again between the terminal surface of clamp plate and axle, make climbing mechanism's one end and the one side butt of the terminal surface that the clamp plate is close to the axle, the other end is simultaneously after the terminal surface butt of axle, start climbing mechanism, make climbing mechanism apply the axial pressure that is on a parallel with the axle to the clamp plate, because climbing mechanism is on a parallel with the axial of axle to the pressure that the clamp plate was applied, consequently this pressure promotes the clamp plate and moves to one side of keeping away from the axle along the axial of axle, drive the chassis of being connected through first stand and second stand simultaneously and move to one side of keeping away from the axle along the axial of axle, and then make the chassis promote to wait to dismantle the bearing and move to one side of keeping away from the axle along the axial of axle, until waiting to dismantle. Therefore, the bearing dismounting device provided by the invention has the advantages that the bearing dismounting device is positioned by the contact of the chassis and the end surface of the bearing to be dismounted, the stress area of the bearing to be dismounted is increased, the bearing to be dismounted is stably stressed, and the phenomena of deviation, deflection or loosening and the like are not easy to occur, so that the possibility of injury to workers is reduced, and the safety of the bearing dismounting work is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bearing dismounting device according to an embodiment of the present invention when a bearing to be dismounted is dismounted;

fig. 2 is a schematic partial perspective view of a bearing dismounting device according to an embodiment of the present invention;

fig. 3 is a schematic partial front view of a bearing dismounting device according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a chassis according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a screw according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a pressing plate according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a jacking mechanism according to an embodiment of the present invention;

fig. 8 is a schematic flow chart of a bearing dismounting method according to an embodiment of the present invention.

The bearing assembling device comprises a base plate 100, an opening groove 101, a first mounting hole 102, a second mounting hole 103, a first upright post 200, a first adjusting piece 201, a second upright post 300, a second adjusting piece 301, a pressing plate 400, a first connecting hole 401, a second connecting hole 402, a first fastener 500, a second fastener 600, a jacking mechanism 700, a shaft 800 and a bearing to be disassembled 900.

Detailed Description

In view of the above, the core of the present invention is to provide a bearing dismounting device to improve the safety of the bearing dismounting operation.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 7, an embodiment of the present invention discloses a bearing dismounting device, which is used for dismounting a bearing 900 to be dismounted, wherein the bearing 900 to be dismounted is mounted on a shaft 800, and the bearing dismounting device includes a chassis 100, a first upright 200, a second upright 300, a pressure plate 400, a first fastener 500, a second fastener 600 and a jacking mechanism 700.

The chassis 100 is provided with an open slot 101, a first mounting hole 102 and a second mounting hole 103, the width of the open slot 101 is larger than the diameter of the shaft 800 and smaller than the outer diameter of the bearing 900 to be disassembled, so that the chassis 100 is sleeved on the outer circumference of the shaft 800 through the open slot 101, and meanwhile, the chassis 100 is in contact with the end face of the bearing 900 to be disassembled; the first upright column 200 can be mounted in the first mounting hole 102, the first upright column 200 is provided with a first adjusting piece 201 capable of moving along the height direction of the first upright column 200, the second upright column 300 can be mounted in the second mounting hole 103, and the second upright column 300 is provided with a second adjusting piece 301 capable of moving along the height direction of the second upright column 300, so that the purpose of adjusting the position of the pressing plate 400 is achieved by adjusting the heights of the first adjusting piece 201 and the second adjusting piece 301; the pressing plate 400 is provided with a first connecting hole 401 and a second connecting hole 402, the first connecting hole 401 can be connected with the first upright column 200 in a matching way, the second connecting hole 402 can be connected with the second upright column 300 in a matching way, and the pressing plate 400 is positioned on one side of the first adjusting piece 201 and the second adjusting piece 301 far away from the chassis 100; the first fastener 500 and the second fastener 600 are arranged on one side of the pressure plate 400 far away from the chassis 100, the first fastener 500 is arranged on the first upright post 200, and the second fastener 600 is arranged on the second upright post 300, so that when the pressure plate 400 is applied through the jacking mechanism 700, the pressure plate 400 is prevented from being loosened from the first upright post 200 and the second upright post 300; the jacking mechanism 700 can apply pressure to the pressing plate 400, one end of the jacking mechanism 700 can abut against one side of the pressing plate 400 close to the end face of the shaft 800, and the other end of the jacking mechanism 700 can abut against the end face of the shaft 800, so that the jacking mechanism 700 is located between the pressing plate 400 and the end face of the shaft 800, and further the jacking mechanism 700 can apply pressure parallel to the axial direction of the shaft 800 to the pressing plate 400, and the pressure pushes the pressing plate 400 to move along one side of the shaft 800 away from the axial direction of the shaft 800, and simultaneously drives the chassis 100 connected through the first upright post 200 and the second upright post 300 to move along one side of the shaft 800 away from the axial direction of the shaft 800, and further the chassis 100 pushes the bearing 900 to be disassembled to move along one side of the shaft 800 away from the axial direction of the shaft.

When the bearing dismounting device provided by the invention is used, because the width of the opening groove 101 on the chassis 100 is larger than the diameter of the shaft 800 and smaller than the outer diameter of the bearing 900 to be dismounted, the chassis 100 can be sleeved on the outer circumference of the shaft 800 through the opening groove 101 and contacted with the end surface of the bearing 900 to be dismounted, the first upright post 200 is installed in the first installation hole 102, the second upright post 300 is installed in the second installation hole 103, then the first connection hole 401 of the press plate 400 is matched and connected with one end of the first upright post 200 away from the chassis 100, the second connection hole 402 is matched and connected with one end of the second upright post 300 away from the chassis 100, the height of the first adjusting part 201 is adjusted along the height direction of the first upright post 200, the height of the second adjusting part 301 is adjusted along the height direction of the second upright post 300, and the press plate 400 is further adjusted, so that the plane of the press plate 400 is parallel to the plane of the chassis 100, then the, the second fastener 600 is installed on the second upright post 300, the pressure plate 400 is fastened through the first fastener 500 and the second fastener 600, the jacking mechanism 700 is placed between the pressure plate 400 and the end surface of the shaft 800, one end of the jacking mechanism 700 is abutted against one side of the pressure plate 400 close to the end surface of the shaft 800, meanwhile, the other end of the lifting mechanism 700 is abutted against the end face of the shaft 800, the lifting mechanism 700 is started to apply pressure parallel to the axial direction of the shaft 800 to the pressing plate 400, since the pressure applied to the pressure plate 400 by the jacking mechanism 700 is parallel to the axial direction of the shaft 800, the pressure pushes the pressing plate 400 to move in the axial direction of the shaft 800 to the side away from the shaft 800, simultaneously, the chassis 100 connected with the first upright post 200 and the second upright post 300 is driven to move along the axial direction of the shaft 800 to the side far away from the shaft 800, and the chassis 100 pushes the bearing 900 to be dismounted to move along the axial direction of the shaft 800 to the side far away from the shaft 800 until the bearing 900 to be dismounted is separated from the shaft 800. Therefore, the bearing dismounting device provided by the invention has the advantages that the bearing dismounting device is positioned by the contact of the chassis 100 and the end surface of the bearing 900 to be dismounted, the stress area of the bearing 900 to be dismounted is increased, the bearing 900 to be dismounted is stably stressed, the phenomena of deviation, deflection or loosening and the like are not easy to occur, the possibility of injury to workers is further reduced, and the safety of the bearing dismounting work is improved.

It should be noted that the chassis 100 may be in a shape of a circle, a square, or a special shape, and any structure that can meet the use requirement is within the protection scope of the present invention; preferably, the circular chassis 100 is adopted in the embodiment of the present invention, and the center line of the chassis 100 and the center line of the opening slot 101 are on the same straight line, so as to balance the stress of the bearing 900 to be disassembled, improve the stability of the bearing 900 to be disassembled, and prevent the bearing 900 to be disassembled from skewing and deviating due to uneven stress during the disassembling process.

In addition, the distance between the pressing plate 400 and the chassis 100 cannot be too small, so that the distance between the pressing plate 400 and the chassis 100 is prevented from being too small, the jacking mechanism 700 cannot be placed between the pressing plate 400 and the end face of the shaft 800, namely cannot be abutted against the end face of the shaft 800 and the pressing plate 400, and the bearing dismounting device cannot be used.

Further, the first upright column 200 and the second upright column 300 can be of a polished rod, a ladder rod or an expansion rod, and any structure capable of meeting the use requirements is within the protection scope of the present invention; preferably, the first upright column 200 and the second upright column 300 provided by the embodiment of the present invention are both screws, and both ends of the screws are provided with threads, and the first mounting hole 102 and the second mounting hole 103 are both threaded holes, so that the first upright column 200 is mounted in the first mounting hole 102 and the second upright column 300 is mounted in the second mounting hole 103 through threaded connection.

In addition, the center of the first mounting hole 102 and the center of the second mounting hole 103 may be symmetrically disposed on both sides of the center line of the open slot 101, or asymmetrically disposed on both sides of the center line of the open slot 101, and any structure that can meet the use requirement is within the scope of the present invention; preferably, in the embodiment of the present invention, the center of the first mounting hole 102 and the center of the second mounting hole 103 are symmetrically disposed on both sides of the center line of the open slot 101, so that the first upright column 200 and the second upright column 300 are symmetrically disposed on both sides of the center line of the open slot 101, and when the bearing 900 to be disassembled is disassembled, the forces applied to the chassis 100 by the first upright column 200 and the second upright column 300 are symmetrical along the center line of the open slot 101, so that the chassis 100 is stressed in a balanced manner, and further, the chassis 100 is balanced in the forces applied to the bearing 900 to be disassembled, and the stability and the safety of the disassembling process are improved.

Moreover, the center distance between the first mounting hole 102 and the second mounting hole 103 is larger than the outer diameter of the bearing 900 to be dismounted, so that the first upright post 200 and the second upright post 300 are prevented from interfering with the outer circumference of the bearing 900 to be dismounted due to the excessively small center distance between the first mounting hole 102 and the second mounting hole 103, and the bearing dismounting device and the bearing 900 to be dismounted are prevented from being damaged.

Further, the open slot 101 may be a U-shaped slot, a rectangular slot, or a gourd-shaped slot, and any type that enables the chassis 100 to be sleeved on the outer circumference of the shaft 800 is within the protection scope of the present invention; preferably, the opening groove 101 provided in the embodiment of the present invention is a U-shaped groove, so that the arc portion of the U-shaped groove is matched with the outer circumference of the shaft 800, and the positioning accuracy is improved.

The first adjusting part 201 and the second adjusting part 301 provided by the invention can be structures such as adjusting nuts, clamps or sleeves, and the like, and any structures which can move along the height direction of the first upright column 200 and the second upright column 300 are within the protection scope of the invention; preferably, the first adjusting member 201 and the second adjusting member 301 provided by the embodiment of the present invention are both adjusting nuts, which can be directly engaged with screws, and have simple structure and are convenient to adjust.

Further, the first connection hole 401 and the second connection hole 402 may be in the shape of a circular hole, an elongated circular hole, or a square hole, and any shape that allows the first upright 200 and the second upright 300 to pass through is within the scope of the present invention; preferably, the first connection hole 401 and the second connection hole 402 provided in the embodiment of the present invention are oblong holes, and the length directions of the first connection hole 401 and the second connection hole 402 are parallel to the length direction of the pressure plate 400, so that when the pressure plate 400 is mounted, the pressure plate 400 can be finely adjusted in the length direction of the pressure plate 400 to absorb the hole center shift caused by tolerance accumulation.

In addition, the first fastening member 500 and the second fastening member 600 may be a fastening nut, a clamp, a sleeve, or the like, and any structure that can prevent the pressing plate 400 from moving along the first upright column 200 and prevent the pressing plate 400 from loosening on the first upright column 200 and the second upright column 300, as long as the jacking mechanism 700 applies pressure to the pressing plate 400, the first fastening member 500 can prevent the pressing plate 400 from moving along the first upright column 200, and the second fastening member 600 can prevent the pressing plate 400 from moving along the second upright column 300, falls within the protection scope of the present invention; preferably, the first fastening member 500 and the second fastening member 600 provided by the embodiment of the present invention are both fastening nuts, and can be directly screwed with the threads on the screw, so that the structure is simple, and the fastening and installation are convenient.

In addition, the jacking mechanism 700 may be a hydraulic cylinder, a pneumatic cylinder, or an electric actuator, and any device capable of applying pressure to the pressing plate 400 so that the pressing plate 400 can detach the bearing 900 to be detached through the chassis 100 is within the scope of the present invention; preferably, the embodiment of the invention adopts the jack, so that the jack has larger jacking force, and the bearing dismounting device can be used for dismounting the bearing with larger interference fit.

The jack can be of a mechanical type, a hydraulic type or an inflatable type, and the like, and the jack can meet the use requirement and is within the protection scope of the invention.

In addition, the pressing plate 400 can be made of steel plate, iron plate or aluminum alloy plate, and any material that can meet the mechanical property requirement of the bearing dismounting device is within the protection scope of the present invention; preferably, embodiments of the present invention are fabricated from steel sheet.

As shown in fig. 8, the present invention also discloses a bearing dismounting method, which adopts the bearing dismounting device described in any one of the above, and includes the steps of:

s1: the chassis 100 is sleeved on the outer circumference of the shaft 800 through the open slot 101 so as to facilitate the chassis 100 to contact with the end surface of the bearing 900 to be disassembled, and the stressed area of the bearing 900 to be disassembled is increased through the surface contact, thereby improving the stability of the disassembling process.

S2: the height of the first adjusting part 201 on the first upright 200 and the height of the second adjusting part 301 on the second upright 300 are adjusted, so that the position and the angle of the pressure plate 400 can be adjusted, the pressure plate 400 and the chassis 100 are in a relatively parallel state, and the stability of the disassembling process is improved.

S3: and judging whether the plane of the pressing plate 400 is parallel to the plane of the chassis 100, if not, executing the step S2, and if so, executing the step S4.

S4: first and second fasteners 500 and 600 are installed to facilitate fastening of the pressure plate 400 to the first and second columns 200 and 300.

S5: after one end of the jacking mechanism 700 abuts against one side of the pressing plate close to the end face of the shaft, and the other end of the jacking mechanism 700 abuts against the end face of the shaft, the jacking mechanism 700 is started, so that the jacking mechanism 700 applies pressure parallel to the axial direction of the shaft 800 to the pressing plate 400, so that the pressing plate 400 moves along one side of the shaft 800 in the axial direction of the shaft 800, and the first upright post 200 and the second upright post 300 drive the chassis 100 to move along one side of the shaft 800 in the axial direction of the shaft 800, and further the chassis 100 pushes the bearing 900 to be disassembled to move along one side of the shaft 800 in the axial direction of the shaft 800.

S6: and judging whether the bearing 900 to be disassembled is separated from the shaft 800, if so, executing the step S7, and if not, executing the step S5.

S7: and taking down the bearing 900 to be disassembled to finish the disassembly.

Therefore, when the bearing dismounting method provided by the invention is used, the chassis 100 can be sleeved on the outer circumference of the shaft 800 through the open slot 101 and is in contact with the end face of the bearing 900 to be dismounted, the position of the press plate 400 is adjusted by adjusting the heights of the first adjusting piece 201 and the second adjusting piece 301, the plane of the press plate 400 is parallel to the plane of the chassis 100, then the first fastening piece 500 is installed on the first upright post 200, the second fastening piece 600 is installed on the second upright post 300, the press plate 400 is fastened through the first fastening piece 500 and the second fastening piece 600, then the jacking mechanism 700 applies pressure to the press plate 400, as the pressure applied to the press plate 400 by the jacking mechanism 700 faces to the axial direction parallel to the shaft, the pressure can push the press plate 400 to move along the axial direction of the shaft 800 to the side far away from the shaft 800, and drive the chassis 100 connected through the first upright post 200 and the second upright post 300 to move along the axial direction of the shaft 800 to, and then the chassis 100 contacting with the end face of the bearing 900 to be dismounted pushes the bearing 900 to be dismounted to move along the axial direction of the shaft 800 to the side far away from the shaft 800 until the bearing 900 to be dismounted is separated from the shaft 800. Therefore, in the bearing dismounting method provided by the invention, the chassis 100 is in contact positioning with the end face of the bearing 900 to be dismounted, so that the stress area of the bearing 900 to be dismounted is increased, the bearing 900 to be dismounted is stably stressed, and the phenomena of deviation, deflection or loosening and the like are not easy to occur, further the possibility of injury to workers is reduced, and the safety of the bearing dismounting work is improved.

The terms "first" and "second," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not set forth for a listed step or element but may include steps or elements not listed.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The utility model provides a bearing dismounting device for dismantle and treat the dismantlement bearing, treat to dismantle the bearing and install epaxial, its characterized in that, bearing dismounting device includes:

the chassis is provided with an open slot, a first mounting hole and a second mounting hole, and the width of the open slot is larger than the diameter of the shaft and smaller than the outer diameter of the bearing to be disassembled;

the first upright post can be installed in the first installation hole, and a first adjusting piece which can move along the height direction of the first upright post is arranged on the first upright post;

the second upright post can be installed in the second installation hole, and a second adjusting piece capable of moving along the height direction of the second upright post is arranged on the second upright post;

the pressing plate is provided with a first connecting hole and a second connecting hole, the first connecting hole can be matched and connected with the first upright column, the second connecting hole can be matched and connected with the second upright column, and the pressing plate is positioned on one side, away from the chassis, of the first adjusting piece and the second adjusting piece;

the first fastener and the second fastener are arranged on one side, far away from the chassis, of the pressing plate, the first fastener is mounted on the first upright post, and the second fastener is mounted on the second upright post;

the jacking mechanism can apply pressure parallel to the axial direction of the shaft to the pressing plate, one end of the jacking mechanism can be abutted against one side, close to the end face of the shaft, of the pressing plate, and the other end of the jacking mechanism can be abutted against the end face of the shaft.

2. The bearing dismounting device according to claim 1, wherein the bottom plate is circular, and a center line of the bottom plate and a center line of the open slot are on the same straight line.

3. The bearing dismounting device according to claim 1, wherein the first column and the second column are both screws, and both ends of the screws are provided with threads.

4. The bearing dismounting device according to claim 1, wherein the centers of the first mounting hole and the second mounting hole are symmetrically arranged on both sides of the center line of the open slot, and the center distance between the first mounting hole and the second mounting hole is larger than the outer diameter of the bearing to be dismounted.

5. The bearing dismounting device of claim 1, wherein the open slot is a U-shaped slot.

6. The bearing disassembly apparatus of claim 1, wherein the first and second adjustment members are adjustment nuts.

7. The bearing detaching device according to claim 1, wherein the first connection hole and the second connection hole are both oblong holes, and a length direction of the first connection hole and the second connection hole is parallel to a length direction of the pressure plate.

8. The bearing disassembly apparatus of claim 1, wherein the first fastener and the second fastener are each a fastening nut.

9. The bearing removal apparatus of claim 1, wherein the jacking mechanism is a jack.

10. The bearing disassembly apparatus of claim 1, wherein the pressure plate is made of steel plate.

11. A bearing dismounting method, characterized in that the bearing dismounting device according to any one of claims 1 to 10 is used, comprising the steps of:

s1: sleeving the chassis on the outer circumference of the shaft through the open slot;

s2: adjusting the height of the first adjusting piece on the first upright post and the height of the second adjusting piece on the second upright post;

s3: judging whether the plane of the pressure plate is parallel to the plane of the chassis, if not, executing step S2, and if so, executing step S4;

s4: installing a first fastener and a second fastener;

s5: enabling one end of a jacking mechanism to abut against one side, close to the end face of the shaft, of the pressing plate, and after the other end of the jacking mechanism abuts against the end face of the shaft, starting the jacking mechanism to enable the jacking mechanism to apply pressure, parallel to the axial direction of the shaft, to the pressing plate;

s6: judging whether the bearing to be disassembled is separated from the shaft, if so, executing the step S7, otherwise, executing the step S5;

s7: and taking down the bearing to be disassembled to finish the disassembly.

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