CN110900147B

CN110900147B - Bearing dismouting subassembly and automatic bearing dismouting device

Info

Publication number: CN110900147B
Application number: CN201911333757.1A
Authority: CN
Inventors: 刘雪岭
Original assignee: Yangzhou Hengtai Heavy Industry Technology Co Ltd
Current assignee: Yangzhou Hengtai Heavy Industry Technology Co., Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-12-01
Anticipated expiration: 2039-12-23
Also published as: CN110900147A

Abstract

The invention discloses a bearing dismounting component and an automatic bearing dismounting device, which comprise a servo motor, a coupler, a ball screw, a screw nut, a fixed side screw supporting seat, a supporting side screw supporting seat, a base, a baffle, a pulling plate, a threaded rod, a bearing limiting plate and a lifting trolley, wherein the fixed side screw supporting seat is arranged on the base; when the device is used, the device is moved to a working position through the lifting trolley, the hydraulic cylinder is controlled through the electric control cabinet, the bearing dismounting assembly on the lifting trolley is lifted to a proper height, one end of the main shaft is abutted to the baffle, one end of the bearing is abutted to the bearing limiting plate, the rotation of the servo motor is converted into linear motion of the pulling plate and the bearing limiting plate through the ball screw, the bearing limiting plate drives the bearing to move, and the purpose that the bearing is installed on the main shaft or the bearing is separated from the main shaft is achieved. The mechanism realizes that a bearing equipment tool and a bearing dismounting tool are combined into a whole, has automatic operation, is safe and convenient, can effectively reduce the assembly time, and reduces the labor cost.

Description

Bearing dismouting subassembly and automatic bearing dismouting device

Technical Field

The invention relates to the technical field of bearing auxiliary equipment, in particular to a bearing dismounting assembly and an automatic bearing dismounting device.

Background

As a common component, bearings are widely used in the industrial field and have various models. The bearing is a component for fixing and reducing the friction coefficient of load in the mechanical transmission process, is used for reducing the friction coefficient in the power transmission process and keeping the center position of the shaft fixed when other parts move relative to each other on the shaft, and has the main function of supporting the mechanical rotating body to reduce the friction coefficient of the mechanical load of the equipment in the transmission process. Bearings play an increasingly important role in many industries, being a component of great use in the electromechanical, electrical, petroleum, smelting and military sectors, all of which are said to be required in places where there is rotation.

The bearing assembly is an indispensable important technology in the mechanical equipment technology, the bearing clearance can be controlled in an ideal range in the assembly process, the surface quality of the inner wall of the bearing is not damaged, and the optimal performance is realized in the assembly process; the disassembly of the bearing is also an indispensable process in the maintenance of equipment, and in the disassembly process, particularly in the disassembly process of the interference fit bearing, the disassembly operation difficulty is large, and the bearing is easy to damage. The existing bearing is usually assembled by adopting a method of knocking a sleeve and a soft hammer, and is disassembled by adopting methods such as a tool knocking method, a puller drawing method, a temperature difference method and the like, the methods are all manual operations, the labor intensity is high, the disassembling and assembling speed is slow, and tools used for assembling and disassembling are different, so that the bearing can be assembled and disassembled by one tool.

Patent CN206998793U discloses a bearing dismounting device, which comprises a screw, a support component, and a nut plate and a bearing dismounting component sequentially connected with the screw along the axial direction of the screw; the nut plate is provided with a threaded hole which runs through the two sides of the nut plate and is connected with the screw; the support part is connected with the nut plate and extends towards the direction close to the bearing detaching part, the support part is used for being detachably connected with a front end cover of the main shaft, and a bearing detaching space is formed between one side of the support part, facing the screw rod, and the screw rod; the bearing detaching component is provided with a protrusion with adjustable axial line distance of the screw rod, and the protrusion can penetrate through the bearing and the space ring and hook the end face of the space ring. The structure of this patent is a manual dismantlement bearing tool, and its shortcoming lies in can not the automatic dismantlement bearing, extravagant manpower, and this instrument can not be used for the installation of bearing.

Patent CN109531108A also discloses a multifunctional bearing dismounting device, which comprises a frame body, two pushing cylinders, two sliding plates, a fixed plate and two tension springs, wherein the frame body is arranged in a frame shape, the pushing cylinders are arranged at the top of the frame body, the sliding plates are slidably arranged between two vertical supporting rods of the frame body, the bottom of each pushing cylinder is connected with the corresponding sliding plate, the pushing cylinders drive the corresponding sliding plates to move on the frame body, the two tension springs are symmetrically arranged on the corresponding sliding plates and are respectively connected with the top of the frame body, the fixed plate is arranged at the bottom of the frame body, the corresponding sliding plates are arranged in a matching manner with the fixed plate, rectangular tool grooves are arranged at the end face of the top of the frame body, circular grooves with sequentially increased apertures are uniformly arranged in the rectangular tool grooves, matched ejector rods are arranged in the circular grooves, and the tops of the ejector rods are magnetically attracted to the centers of the, the circular groove bottom is provided with rubber magnetism, the ejector rod can be adsorbed on the rubber magnetism, the upper opening part of the rectangular tool groove is arranged in a stepped groove, the opening part of the rectangular tool groove is positioned in the stepped groove and is provided with a closing plate, one side of the closing plate is hinged with the rectangular tool groove, the other side surface of the closing plate is provided with a fixing groove, the rectangular tool groove is provided with a sliding groove corresponding to the fixing groove, a sliding block is arranged in the sliding groove, one end of the sliding block, facing the fixing groove, can be arranged in the fixing groove in a sliding manner, the frame body is provided with a limiting groove communicated with the sliding groove corresponding to the sliding groove, a shifting block connected with the sliding block is arranged in the limiting groove, the bottom in the sliding groove is provided with a reset spring, the sliding block can slide towards the fixing groove direction under the action of the elastic force of, the plane end of the sliding block is abutted against the return spring. The structure of this patent is an automatic bearing dismounting device, and its shortcoming lies in that the device structure is comparatively complicated, and the volume is great, complex operation.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the bearing dismounting assembly and the automatic bearing dismounting device, which can be used for mounting and dismounting the bearing, are automatic equipment, effectively reduce the assembly time and reduce the labor cost.

In order to achieve the above object, the present invention provides a bearing dismounting assembly, which comprises a servo motor, a motor mounting plate, a coupler, a ball screw, a screw nut, a fixed side screw supporting seat, a supporting side screw supporting seat, a bearing, a base, a baffle, a pulling plate, a lock nut, a threaded rod, a bearing limiting plate and a limit sensor, wherein the servo motor is fixedly mounted at the front end of the base through the motor mounting plate, the front end of the ball screw is connected with an output shaft of the servo motor through the coupler, the front end and the rear end of the ball screw are respectively connected with the fixed side screw supporting seat and the supporting side screw supporting seat through the bearing, the fixed side screw supporting seat and the supporting side screw supporting seat are fixedly mounted on the base, the baffle is fixedly mounted at the rear end of the base, the screw nut is arranged on the ball screw between the fixed side screw supporting seat and the supporting side screw, the rotation of the servo motor is converted into the linear motion of the screw nut through the ball screw.

Further, the arm-tie passes through bolt fixed mounting at screw nut's terminal surface, the arm-tie is the polygon, as preferred, the arm-tie is the quadrangle, and the four corners is provided with the through-hole, the arm-tie lower extreme is equipped with the recess for avoid the base in case to interfere, the threaded rod has four, passes the through-hole of seting up on arm-tie and the bearing limiting plate respectively, fixes the front end and the rear end at the threaded rod respectively with arm-tie and bearing limiting plate through lock nut, the bearing limiting plate is the polygon, as preferred, the bearing limiting plate is the quadrangle, and the four corners is provided with the through-hole.

Further, the bearing limiting plate is split type structure, including last limiting plate and the lower limiting plate of fixed connection at the U notch department of last limiting plate of seting up U type groove, the inner of lower limiting plate be the semicircular groove shape, one side of lower limiting plate and bearing contact still be fixed with the inner radial limiting plate of bearing that is the semicircular groove shape, the semicircular groove of the radial limiting plate inner of bearing and the semicircular groove of lower limiting plate inner are concentric.

Further, still be provided with two spacing sensors on the base, two spacing sensors are installed respectively at the foremost and rearmost end of lead screw nut linear motion direction, play the safety limiting effect, protection personnel and equipment safety.

In order to achieve the purpose, the invention further provides a bearing dismounting assembly, which comprises a pulling plate, a bearing limiting plate, the servo motor, a motor mounting plate, a coupler, a ball screw, a screw nut, a fixed side screw supporting seat, a supporting side screw supporting seat, a bearing, a base, three threaded rods and a limiting sensor, wherein the pulling plate is fixedly mounted on the end face of the screw nut through bolts and is triangular, through holes are formed in the three corners, grooves are formed in the lower end of the pulling plate and used for avoiding the base from interference, the three threaded rods respectively penetrate through the pulling plate and the through holes formed in the bearing limiting plate, the pulling plate and the bearing limiting plate are respectively fixed at the front end and the rear end of the threaded rod through the locking nuts, the bearing limiting plate is triangular, and the three corners are provided with the through holes.

In order to achieve the purpose, the invention also provides a bearing dismounting assembly which comprises a pulling plate, a pin shaft, pulling claw supports, pulling claws, the servo motor, a motor mounting plate, a coupler, a ball screw, a screw nut, a fixed side screw support seat, a bearing, a supporting side screw support seat, a base and a limit sensor, wherein the pulling plate is fixedly mounted on the end face of the screw nut through bolts, the pulling claw supports are at least three groups and are uniformly distributed on the other end face of the pulling plate, each pulling claw support seat is movably connected with one pulling claw through the pin shaft, the pulling claws are in long strip shapes, and the rear ends of the pulling plate are provided with grapples convenient for fastening the inner ring of the bearing.

In addition, the invention also provides an automatic bearing dismounting device, which comprises a lifting trolley and any one of the bearing dismounting components; the lifting trolley comprises a connecting block, a supporting platform, a first sliding chute, an outer shearing fork arm, an inner shearing fork arm, a pin shaft, a roller, a first connecting rod, a second connecting rod, a hydraulic cylinder, a second sliding chute, a trolley body, a trundle, an electric control cabinet and a push rod; the bearing dismounting assembly is fixedly arranged on the upper surface of the supporting platform through a connecting block; the outer scissor fork arm and the inner scissor fork arm are respectively provided with two parallel parts, the middle of each outer scissor fork arm and the middle of each inner scissor fork arm are hinged through a pin shaft, the lower end of each outer scissor fork arm and the upper end of each inner scissor fork arm are respectively provided with a roller wheel, a first sliding groove is arranged below the supporting platform, the vehicle body is provided with a second sliding groove, the roller wheels at the lower ends of the outer scissor fork arms can slide along the second sliding groove, and the upper ends of the outer scissor fork arms are hinged below the supporting platform; the roller at the upper end of the inner scissor arm can slide along the first sliding chute, and the upper end of the inner scissor arm is hinged on the vehicle body; a first connecting rod is arranged between the two outer scissor arms, a second connecting rod is arranged between the two inner scissor arms, the lever end of the hydraulic cylinder is hinged to the second connecting rod, the cylinder body end of the hydraulic cylinder is hinged to the first connecting rod, and the descending and ascending of the supporting platform on the lifting trolley are realized through the hydraulic cylinder and the inner and outer scissor arms; the four trundles are respectively arranged at four corners below the vehicle body; the electric control cabinet is arranged on one side above the vehicle body; the push rod is used for pushing or pulling the vehicle body and is arranged above the vehicle body and at the same side as the electric control cabinet.

Compared with the prior art, the invention has the beneficial effects that: unite two into one bearing mounting tool and bearing extracting tool, can be applicable to the bearing dismouting of multiple model, automated operation, it is safe convenient, can effectual reduction assemble duration, reduce the human cost.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a side view of a structural shaft of a first embodiment of a bearing assembly and disassembly assembly of the present invention

FIG. 2 is a side view of the structural shaft of the first embodiment of the bearing assembly and disassembly assembly of the present invention

FIG. 3 is a front view of the first embodiment of the bearing assembly/disassembly assembly of the present invention

FIG. 4 is a top view of the first embodiment of the bearing assembly and disassembly assembly of the present invention

FIG. 5 is a side view of the bearing retainer plate of the first embodiment of the present invention

FIG. 6 is a side view of the lower retainer plate in accordance with the first embodiment of the present invention

FIG. 7 is a side elevational view of the structural shaft of a second embodiment of the bearing assembly and disassembly assembly of the present invention

FIG. 8 is a side view of a structural shaft of a third embodiment of a bearing assembly and disassembly assembly of the present invention

FIG. 9 is a side elevational view of the present invention during operation of the bearing assembly

FIG. 10 is a front view of the present invention during the operation of installing a bearing

FIG. 11 is an axial side view of the present invention during a bearing removal operation

FIG. 12 is a front view of the present invention during the operation of removing the bearing

FIG. 13 is a schematic structural diagram of a first embodiment of an automatic bearing assembling and disassembling device according to the present invention

FIG. 14 is a front view of the first embodiment of the automatic bearing assembling and disassembling device of the present invention

FIG. 15 is a schematic structural diagram of a second embodiment of an automatic bearing assembling and disassembling device according to the present invention

FIG. 16 is a schematic structural diagram of a third embodiment of an automatic bearing assembling and disassembling device according to the present invention

In the figure: 1. a servo motor; 2. a motor mounting plate; 3. a coupling; 4. a ball screw; 5. a lead screw nut; 6. fixing a side lead screw supporting seat; 7. supporting the side lead screw supporting seat; 8. a bearing; 9. a base; 10. A baffle plate; 11. locking the nut; 12. pulling a plate; 13. a threaded rod; 14. a bearing limit plate; 15. an upper limiting plate; 16. a lower limiting plate; 17. a bearing radial limiting plate; 18. a limit sensor; 19. a claw pulling support; 20. a pin shaft; 21. claw pulling; 22. a main shaft; 23. a bearing to be assembled; 24. a bearing is to be disassembled; 25. lifting the trolley; 2501. connecting blocks; 2502. a support platform; 2503. a first chute; 2504. an outer scissor yoke; 2505. an inner scissor fork arm; 2506. a pin shaft; 2507. a roller; 2508. a first link; 2509. A second link; 2510. a hydraulic cylinder; 2511. a second chute; 2512. a vehicle body; 2513. a caster wheel; 2514. an electric control cabinet; 2515. a push rod.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 of the present invention without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "left", "right", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

Fig. 1 to 6 show the main technical content of a first embodiment of a bearing dismounting assembly, which provides a bearing dismounting assembly comprising a servo motor 1, a motor mounting plate 2, a coupler 3, a ball screw 4, a screw nut 5, a fixed side screw supporting seat 6, a supporting side screw supporting seat 7, a bearing 8, a base 9, a baffle 10, a lock nut 11, a pulling plate 12, a threaded rod 13, a bearing limiting plate 14, and a limit sensor 18, wherein the servo motor 1 is fixedly mounted at the front end of the base 9 through the motor mounting plate 2, the front end of the ball screw 4 is connected with an output shaft of the servo motor 1 through the coupler 3, the front end and the rear end of the ball screw 4 are respectively connected with the fixed side screw supporting seat 6 and the supporting side screw supporting seat 7 through the bearing 8, the fixed side screw supporting seat 6 and the supporting side screw supporting seat 7 are fixedly mounted on the base 9, the screw nut 5 is arranged on the ball screw 4 between the fixed side screw support seat 6 and the supporting side screw support seat 7, the rotation of the servo motor 1 is converted into the linear motion of the screw nut 5 through the ball screw 4, and the baffle 10 is fixedly arranged at the rear end of the base 9 and used for blocking and limiting a workpiece to be detached or mounted.

The pull plate 12 is fixedly installed on the end face of the screw nut 5 through bolts, the pull plate 12 is quadrilateral, through holes are formed in four corners, a groove is formed in the lower end of the pull plate 12 and used for avoiding the base 9 to prevent interference, the threaded rod 13 is four, the four through holes formed in the pull plate 12 and the bearing limiting plate 14 are respectively penetrated through and respectively fixed at the front end and the rear end of the threaded rod 13 through a locking nut 11, the bearing limiting plate 14 is quadrilateral, the four through holes are formed in four corners, the bearing limiting plate 14 is of a split structure and comprises an upper limiting plate 15 with a U-shaped groove and a lower limiting plate 16 fixedly connected to the U-shaped groove of the upper limiting plate 15, the inner end of the lower limiting plate 16 is semicircular, and a bearing radial limiting plate 17 with the semicircular inner end is further fixed on one side of the lower limiting plate 16 in contact with the bearing, the semicircular groove at the inner end of the bearing radial limiting plate 17 and the semicircular groove at the inner end of the lower limiting plate 16 are concentric, when the bearing radial limiting plate is used, the upper limiting plate 15 and the lower limiting plate 16 abut against one end of a bearing 23 to be assembled or one end of a bearing 24 to be disassembled, the lower end of the bearing is dragged by the bearing radial limiting plate 17, and the bearing is driven to do linear motion through the linear motion of the bearing limiting plate 14.

Still be provided with two spacing sensors 18 on the base 9, two spacing sensors 18 are installed respectively at the foremost and rearmost end of screw nut 5 linear motion direction, play the safety limiting effect, protection personnel and equipment safety.

The working process of the bearing dismounting and mounting of the invention is as follows:

during bearing installation, as shown in fig. 9-10, a proper bearing limiting plate 14 is selected according to the type of a bearing 23 to be assembled, the bearing limiting plate 14 is adjusted to a proper position according to the length of a main shaft 22 and the installation position of the bearing 23 to be assembled, one end face of the bearing 23 to be assembled is in surface contact with the side face of the bearing limiting plate 14, the outer diameter of the bearing 23 to be assembled is in surface contact with the semicircular groove of a bearing radial limiting plate 17, radial movement of the bearing is prevented, the non-installation end of the main shaft 22 abuts against a baffle 10, the installation end of the main shaft 22 abuts against the inner ring of the bearing 23 to be assembled, the servo motor 1 is started, the bearing limiting plate 14 drives the bearing 23 to be assembled to move linearly towards the front end, and the bearing.

When the bearing is disassembled, as shown in fig. 11-12, a proper bearing limiting plate 14 is selected according to the model of the bearing 24 to be disassembled, the bearing limiting plate 14 is adjusted to a proper position according to the length of the main shaft 22 and the disassembling position of the bearing 24 to be disassembled, one end face of the bearing 24 to be disassembled is in surface contact with the side face of the bearing limiting plate 14, the outer diameter of the bearing 24 to be disassembled is in surface contact with the semicircular groove face of the bearing radial limiting plate 17, the radial movement of the bearing is prevented, the disassembling end of the main shaft 22 abuts against the baffle 10, the servo motor 1 is started, the bearing limiting plate 14 drives the bearing 24 to be disassembled to move linearly to the front end, and then the bearing 24 to be disassembled is pushed to.

Fig. 7 shows the main technical content of a second embodiment of a bearing dismounting assembly, which provides a bearing dismounting assembly, comprising a pulling plate 12, a bearing limiting plate 14, the servo motor 1, a motor mounting plate 2, a coupler 3, a ball screw 4, a screw nut 5, a fixed side screw supporting seat 6, a supporting side screw supporting seat 7, a bearing 8, a base 9, a lock nut 11, a threaded rod 13, and a limiting sensor 18, wherein the pulling plate 12 is fixedly mounted on the end surface of the screw nut 5 through bolts, is triangular, three corners are provided with through holes, the lower end of the pulling plate 12 is provided with a groove for avoiding the base 9 to prevent interference, three threaded rods 13 respectively pass through the through holes formed in the pulling plate 12 and the bearing limiting plate 14, the pulling plate 12 and the bearing limiting plate 14 are respectively fixed at the front end and the rear end of the threaded rod 13 through the lock nut 11, bearing limiting plate 14 is triangle-shaped, and three angle is provided with the through-hole, bearing limiting plate 14 is split type structure, including last limiting plate 15 and the lower limiting plate 16 of fixed connection in the U notch department of last limiting plate 15 of seting up U type groove, lower limiting plate 16 the inner be the semicircular groove form, one side of lower limiting plate 16 and bearing contact still be fixed with the inner radial limiting plate 17 of bearing that is the semicircular groove form, the semicircular groove of bearing radial limiting plate 17 the inner and the semicircular groove of lower limiting plate 16 the centre of a circle.

The working principle of the second embodiment is the same as that of the first embodiment, and is not described again.

Fig. 8 shows the main technical content of the third embodiment of the bearing dismounting assembly, and this embodiment provides a bearing dismounting assembly, which includes a pulling plate 12, a pulling claw support 19, a pin shaft 20, pulling claws 21, the servo motor 1, the motor mounting plate 2, a shaft coupling 3, a ball screw 4, a screw nut 5, a fixed side screw support 6, a supporting side screw support 7, a bearing 8, a base 9, and a limit sensor 18, wherein the pulling plate 12 is fixedly mounted on the end surface of the screw nut 5 through a bolt, the pulling claw support 19 has three groups, which are uniformly distributed on the other end surface of the pulling plate 12, each pulling claw support 19 is movably connected with one pulling claw 21 through the pin shaft 20, the pulling claws 21 are in a long strip shape, and the rear end is provided with a grapple convenient for fastening the inner ring of the bearing.

When the bearing pulling device is used specifically, the proper position of the pulling plate 12 is adjusted according to the length of the main shaft 22 and the mounting and dismounting positions of the bearing, the grabbing hook of the pulling claw 21 is abutted against the inner ring of the bearing, the servo motor 1 is started, the pulling claw 21 drives the bearing to move linearly towards the front end, and then the bearing is mounted on the main shaft 22 or separated from the main shaft 22.

Fig. 13 to 14 show the main technical content of the first embodiment of the automatic bearing dismounting device, and the present embodiment provides an automatic bearing dismounting device, which comprises a lifting trolley 25 and all the structures of the first embodiment of the bearing dismounting assembly; the lifting trolley 25 comprises a connecting block 2501, a supporting platform 2502, a first sliding chute 2503, an outer scissor arm 2504, an inner scissor arm 2505, a pin 2506, a roller 2507, a first connecting rod 2508, a second connecting rod 2509, a hydraulic cylinder 2510, a second sliding chute 2511, a trolley body 2512, a caster 2513, an electric control cabinet 2514 and a push rod 2515; the bearing dismounting assembly is fixedly arranged on the upper surface of the supporting platform 2502 through a connecting block 2501; the outer scissor arm 2504 and the inner scissor arm 2505 are respectively provided with two pieces which are respectively parallel, the middle of each outer scissor arm 2504 and the middle of each inner scissor arm 2505 are hinged through a pin 2506, the lower end of each outer scissor arm 2504 and the upper end of each inner scissor arm 2505 are respectively provided with a roller 2507, a first sliding groove 2503 is arranged below the supporting platform 2502, the vehicle body 2512 is provided with a second sliding groove 2511, the roller 2507 at the lower end of the outer scissor arm 2504 can slide along the second sliding groove 2511, and the upper end of the outer scissor arm 2504 is hinged below the supporting platform 2502; a roller 2507 at the upper end of the inner scissor arm 2505 can slide along the first sliding chute 2503, and the upper end of the inner scissor arm 2505 is hinged on the vehicle body 2512; a first connecting rod 2508 is arranged between the two outer scissor arms 2504, a second connecting rod 2509 is arranged between the two inner scissor arms 2505, the lever end of a hydraulic cylinder 2510 is hinged to the second connecting rod 2509, the cylinder body end of the hydraulic cylinder 2510 is hinged to the first connecting rod 2508, and the descending and ascending of the supporting platform 2502 on the lifting trolley 25 are realized through the hydraulic cylinder 2510 and the inner and outer scissor arms; four casters 2513 are provided and are respectively mounted at four corners below the vehicle body 2512; the electric control cabinet 2514 is arranged on one side above the vehicle body 2512; the push rod 2515 is used for pushing or pulling the vehicle body 2512, and is arranged above the vehicle body 2512 and on the same side as the electric control cabinet 2514.

During specific use, the automatic bearing dismounting device is pushed to the working position, the electric control cabinet controls the hydraulic cylinder to lift the bearing dismounting component on the lifting trolley to a proper height, and then the bearing dismounting component finishes dismounting work of the bearing.

Fig. 15 shows the main technical content of the second embodiment of the automatic bearing dismounting device, and the present embodiment provides an automatic bearing dismounting device, which comprises all the structural features of the second embodiment of the lifting trolley and the bearing dismounting component; the bearing dismounting assembly is fixed above the lifting trolley.

Fig. 16 shows the main technical content of the third embodiment of the automatic bearing dismounting device, and the present embodiment provides an automatic bearing dismounting device, which comprises all the structural features of the lifting trolley and the third embodiment of the bearing dismounting component; the bearing dismounting assembly is fixed above the lifting trolley.

The working principle of the third embodiment is the same as that of the first embodiment, and is not described again.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a bearing dismouting subassembly, includes servo motor (1), shaft coupling (3), ball (4), lead screw nut (5), base (9), arm-tie (12), its characterized in that: the servo motor (1) is arranged at the front end of the base (9), the ball screw (4) is connected with an output shaft of the servo motor (1) through a coupler (3), the screw nut (5) is movably connected to the ball screw (4), the pull plate (12) is fixedly connected to the end face of the screw nut (5), and the rotation of the servo motor (1) is converted into the linear motion of the screw nut (5) through the ball screw (4);

the bearing dismounting assembly further comprises a motor mounting plate (2), a fixed side screw rod supporting seat (6), a supporting side screw rod supporting seat (7) and a bearing (8), the servo motor (1) is fixedly mounted at the front end of the base (9) through the motor mounting plate (2), the front end and the rear end of the ball screw rod (4) are respectively connected with the fixed side screw rod supporting seat (6) and the supporting side screw rod supporting seat (7) through the bearing (8), and the fixed side screw rod supporting seat (6) and the supporting side screw rod supporting seat (7) are fixedly mounted on the base (9);

the bearing dismounting assembly further comprises a baffle (10), and the baffle (10) is fixedly arranged at the rear end of the base (9) and used for blocking and limiting a workpiece to be dismounted or mounted;

the bearing disassembling and assembling component further comprises a locking nut (11), a threaded rod (13) and bearing limiting plates (14), the pulling plate (12) is quadrilateral, through holes are formed in four corners, a groove is formed in the lower end of the pulling plate (12) and used for avoiding the base (9) to prevent interference, the bearing limiting plates (14) are quadrilateral, through holes are formed in four corners, four threaded rods (13) penetrate through the through holes formed in the pulling plate (12) and the bearing limiting plates (14) respectively, and the pulling plate (12) and the bearing limiting plates (14) are fixed to the front end and the rear end of the threaded rod (13) through the locking nut (11) respectively; the bearing limiting plate (14) is of a split structure and comprises an upper limiting plate (15) provided with a U-shaped groove and a lower limiting plate (16) fixedly connected to the U-shaped groove of the upper limiting plate (15), and the inner end of the lower limiting plate (16) is in the shape of a semicircular groove; a bearing radial limiting plate (17) with a semicircular groove-shaped inner end is further fixed on one side of the lower limiting plate (16) contacted with the bearing, and the semicircular groove at the inner end of the bearing radial limiting plate (17) and the semicircular groove at the inner end of the lower limiting plate (16) are concentric; still be provided with two spacing sensors (18) on base (9), install respectively at lead screw nut (5) linear motion direction foremost and rearmost end in two spacing sensors (18), play safe limiting displacement.

2. The utility model provides a bearing dismouting subassembly which characterized in that: including arm-tie (12), bearing limiting plate (14) and bearing dismouting subassembly, bearing dismouting subassembly includes servo motor (1), shaft coupling (3), ball (4), lead screw nut (5), base (9), arm-tie (12), its characterized in that: the servo motor (1) is arranged at the front end of the base (9), the ball screw (4) is connected with an output shaft of the servo motor (1) through a coupler (3), the screw nut (5) is movably connected to the ball screw (4), the pull plate (12) is fixedly connected to the end face of the screw nut (5), and the rotation of the servo motor (1) is converted into the linear motion of the screw nut (5) through the ball screw (4);

the bearing dismounting assembly further comprises a locking nut (11), a threaded rod (13) and a bearing limiting plate (14), the pull plate (12) is fixedly installed on the end face of the screw nut (5) through bolts and is triangular, through holes are formed in three corners, a groove is formed in the lower end of the pull plate (12) and used for avoiding the base (9) to prevent interference, the bearing limiting plate (14) is triangular, the three corners are provided with the through holes, the threaded rod (13) is three and penetrates through the through holes formed in the pull plate (12) and the bearing limiting plate (14) respectively, and the pull plate (12) and the bearing limiting plate (14) are fixed to the front end and the rear end of the threaded rod (13) respectively through the locking nut (11); the bearing limiting plate (14) is of a split structure and comprises an upper limiting plate (15) provided with a U-shaped groove and a lower limiting plate (16) fixedly connected to the U-shaped groove of the upper limiting plate (15), and the inner end of the lower limiting plate (16) is in the shape of a semicircular groove; a bearing radial limiting plate (17) with a semicircular groove-shaped inner end is further fixed on one side of the lower limiting plate (16) contacted with the bearing, and the semicircular groove at the inner end of the bearing radial limiting plate (17) and the semicircular groove at the inner end of the lower limiting plate (16) are concentric; still be provided with two spacing sensors (18) on base (9), install respectively at lead screw nut (5) linear motion direction foremost and rearmost end in two spacing sensors (18), play safe limiting displacement.

3. The utility model provides a bearing dismouting subassembly which characterized in that: the bearing dismounting device comprises a pulling plate (12), pulling claw supports (19), a pin shaft (20), pulling claws (21) and the bearing dismounting assembly according to claim 1, wherein the pulling plate (12) is fixedly arranged on the end surface of a screw nut (5) through bolts, the pulling claw supports (19) are provided with three groups which are uniformly distributed on the other end surface of the pulling plate (12), each pulling claw support (19) is movably connected with one pulling claw (21) through the pin shaft (20), each pulling claw (21) is in a long strip shape, and the rear end of each pulling claw support is provided with a grapple convenient for buckling the inner ring of a bearing.

4. The utility model provides an automatic change bearing dismouting device which characterized in that: comprising a lift carriage (25) and a bearing dismounting assembly according to claim 1; the lifting trolley (25) comprises a connecting block (2501), a supporting platform (2502), a first sliding groove (2503), an outer scissor arm (2504), an inner scissor arm (2505), a pin shaft (2506), a roller (2507), a first connecting rod (2508), a second connecting rod (2509), a hydraulic cylinder (2510), a second sliding groove (2511), a trolley body (2512), a caster (2513), an electric control cabinet (2514) and a push rod (2515); the bearing dismounting assembly is fixedly arranged on the upper surface of the supporting platform (2502) through a connecting block (2501); the outer scissor arm (2504) and the inner scissor arm (2505) are respectively provided with two pieces which are respectively parallel, the middle of each outer scissor arm (2504) and the middle of each inner scissor arm (2505) are hinged through a pin shaft (2506), the lower end of each outer scissor arm (2504) and the upper end of each inner scissor arm (2505) are respectively provided with a roller (2507), a first sliding groove (2503) is arranged below the supporting platform (2502), the vehicle body (2512) is provided with a second sliding groove (2511), the roller (2507) at the lower end of the outer scissor arm (2504) can slide along the second sliding groove (2511), and the upper end of the outer scissor arm (2504) is hinged below the supporting platform (2502); a roller (2507) at the upper end of the inner scissor arm (2505) can slide along the first sliding chute (2503), and the upper end of the inner scissor arm (2505) is hinged on the vehicle body (2512); a first connecting rod (2508) is arranged between the two outer scissor arms (2504), a second connecting rod (2509) is arranged between the two inner scissor arms (2505), the lever end of the hydraulic cylinder (2510) is hinged to the second connecting rod (2509), and the cylinder body end of the hydraulic cylinder (2510) is hinged to the first connecting rod (2508).

5. The automated bearing disassembly and assembly device of claim 4, wherein: four caster wheels (2513) are arranged at four corners below the vehicle body (2512); the electric control cabinet (2514) is arranged on one side above the vehicle body (2512); the push rod (2515) is used for pushing or pulling the vehicle body (2512), is arranged above the vehicle body (2512) and is arranged on the same side as the electric control cabinet (2514).