CN214323199U

CN214323199U - Device for dismounting radial thrust ball bearing

Info

Publication number: CN214323199U
Application number: CN202120203658.8U
Authority: CN
Inventors: 罗国平; 魏江林; 陈磊; 崔智银; 施宗云
Original assignee: Nanjing Jinling Petrochemical Construction And Installation Engineering Co ltd
Current assignee: Nanjing Jinling Petrochemical Construction And Installation Engineering Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-01
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to a dismantle radial thrust ball bearing's device relates to the field of dismantling equipment technique, and it includes lead screw, positioning bottom plate and hydraulic means, be equipped with the locating hole on the positioning bottom plate, lead screw wears to locate in the locating hole, hydraulic means's one end and positioning bottom plate butt, hydraulic means's other end butt is on the motor shaft, the last fastener that is equipped with of lead screw, positioning bottom plate deviates from hydraulic means's lateral wall and fastener butt. This application is favorable to dismantling radial ball bearing under less space, can reduce moreover and damage radial ball bearing, helps prolonging radial ball bearing's life.

Description

Device for dismounting radial thrust ball bearing

Technical Field

The application relates to the field of disassembling equipment technology, in particular to a device for disassembling a radial thrust ball bearing.

Background

The radial thrust ball bearing is mainly used for positioning a pump rotor, so that the center of an impeller flow channel is overlapped with the center of an outlet pipeline to bear partial axial force, the radial thrust ball bearing is installed in a bearing box of the pump, and a gland screw hole for installing a gland is formed in the side wall of the radial thrust ball bearing. In the maintenance process of the mechanical pump, the claw type bearing puller is easy to damage the center thrust ball bearing and is not suitable for disassembling the bearing, so that a special disassembling device is required to be used for disassembling.

In the related art, the chinese patent with publication number CN212146218U discloses a novel bearing puller, which comprises a puller, a stop iron, a jack and two screws, wherein the puller is provided with an avoiding groove for being sleeved on a motor shaft, the puller is an integrally formed structure with an axisymmetric shape, and the puller is axially symmetrically provided with two screw holes; the jack is arranged on the stop iron, one end of each screw rod is connected with the stop iron, and the other end of each screw rod is connected with one screw hole of the puller. The end face of the puller abuts against the end face of the part to be disassembled, the ejection shaft of the jack abuts against the motor shaft, the jack is driven, the puller can disassemble the part to be disassembled, and the bearing is not easy to damage.

With respect to the related art in the above, the inventor has considered that when the operable space in the bearing housing is small, the above puller is difficult to project into the bearing housing, and it is inconvenient to disassemble the angular contact ball bearing.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that is not convenient for dismantle radial ball bearing under less space, this application provides a dismantle radial ball bearing's device.

The application provides a dismantle angular ball bearing's device adopts following technical scheme:

the utility model provides a dismantle radial thrust ball bearing's device, includes lead screw, positioning bottom plate and hydraulic means, be equipped with the locating hole on the positioning bottom plate, lead screw wears to locate in the locating hole, hydraulic means's one end and positioning bottom plate butt, hydraulic means's other end butt is on the motor shaft, the last fastener that is equipped with of lead screw, positioning bottom plate deviates from hydraulic means's lateral wall and fastener butt.

By adopting the technical scheme, after the guide screw rod is in threaded connection with the hole wall of the gland screw hole on the radial thrust ball bearing, the hydraulic device is operated to extrude the motor shaft, the radial thrust ball bearing can be pushed to move through the positioning bottom plate and the guide screw rod, and the fastening piece is used for limiting the positioning bottom plate to move on the guide screw rod; the guide screw rod of this application need not to stretch into in the bearing box, consequently, can dismantle radial thrust ball bearing under less space.

Optionally, the hole wall of the positioning hole extends along the radial direction of the guide screw, and the guide screw abuts against the hole wall of the positioning hole.

Through adopting above-mentioned technical scheme, lead screw can remove along the pore wall of locating hole, helps the radial thrust ball bearing of different specifications of positioning bottom plate adaptation.

Optionally, the hydraulic device comprises a hydraulic jack, a straight plate and a connecting piece, the straight plate is fixedly connected with the outer wall of the hydraulic jack, the hydraulic jack and the straight plate are abutted to the positioning bottom plate, one end of the hydraulic jack, far away from the positioning bottom plate, faces towards the motor shaft, the connecting piece is installed on the positioning bottom plate, and the connecting piece is detachably connected with the straight plate.

Through adopting above-mentioned technical scheme, straight board and connecting piece can be fixed hydraulic jack on the positioning bottom plate, help reducing hydraulic jack and take place relative slip with the positioning bottom plate in the course of the work to the holistic stability of device has been strengthened.

Optionally, the connecting piece includes connecting screw and coupling nut, connecting screw's one end and positioning bottom plate fixed connection, be equipped with connect the via hole on the straight board, connecting screw wears to locate in the connect the via hole, coupling nut and connecting screw threaded connection, coupling nut and straight board deviate from positioning bottom plate's lateral wall butt.

By adopting the technical scheme, the connecting screw rod is matched with the connecting nut, and the straight plate and the positioning bottom plate can be relatively fixed, so that the hydraulic jack and the positioning bottom plate are fixed together; the connecting nut is separated from the connecting screw rod, so that the hydraulic jack can be detached from the positioning bottom plate, and the hydraulic jack is favorable for installation or replacement.

Optionally, one end of the hydraulic jack facing the motor shaft is provided with a buffer block, the buffer block is provided with a mounting groove, the hydraulic jack is inserted into the mounting groove, and the buffer block is abutted to the motor shaft.

Through adopting above-mentioned technical scheme, the buffer block helps buffering the pressure that the motor shaft received to be favorable to reducing the motor shaft and damage.

Optionally, the fastener includes ring gear, driving gear and drive gear, the ring gear is no less than two, ring gear, driving gear and drive gear all rotate with the positioning bottom plate and are connected, lead screw wears to locate in the ring gear, lead screw and ring gear threaded connection, drive gear and ring gear meshing, the driving gear meshes with drive gear, be equipped with the driving piece that is used for driving the driving gear on the driving gear, be equipped with the braking piece that is used for fixed driving gear on the positioning bottom plate.

Through adopting above-mentioned technical scheme, the operation driving piece can drive driving gear and drive gear and rotate, and drive gear can drive a plurality of ring gears simultaneously and rotate, consequently, helps improving the installation effectiveness of location bottom plate, and the arresting member helps reducing driving gear antiport to be favorable to reducing the ring gear not hard up.

Optionally, the driving part comprises a driving shaft, a sleeve and a clamping block, one end of the driving shaft is fixedly connected with the driving gear, the other end of the driving shaft is fixedly connected with the clamping block, and the sleeve is sleeved on the driving shaft.

Through adopting above-mentioned technical scheme, rotate the drive shaft, can promote the driving gear and rotate, sleeve and drive shaft take place relative rotation, are convenient for continuously rotate the drive shaft, and the fixture block is used for reducing the sleeve and breaks away from the drive shaft.

Optionally, the braking piece includes brake block, axis of rotation and fixed block, fixed block and location bottom plate fixed connection, the axis of rotation rotates with the fixed block to be connected, brake block and axis of rotation fixed connection, brake block and the outer wall joint of driving gear.

By adopting the technical scheme, the brake block rotates around the rotating shaft and can be clamped between adjacent teeth on the outer wall of the driving gear, so that the rotation of the driving gear is limited; the brake block is separated from the driving gear, and the driving gear can rotate freely.

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

1. the guide screw is in threaded connection with the hole wall of the gland screw hole on the radial thrust ball bearing, so that the radial thrust ball bearing can be detached in a smaller space;

2. the hole wall of the positioning hole extends along the radial direction of the positioning hole, so that the positioning bottom plate is beneficial to adapting to radial thrust ball bearings with different specifications;

3. by arranging the hydraulic jack, the straight plate and the connecting piece, the relative sliding between the hydraulic jack and the positioning bottom plate in the working process is favorably reduced, and the integral stability of the device is enhanced;

4. this application is through setting up ring gear, driving gear and drive gear, can drive a plurality of ring gears simultaneously and rotate, helps improving the installation effectiveness of positioning bottom plate.

Drawings

Fig. 1 is a front view of a device for removing an angular ball bearing according to embodiment 1 of the present application.

Fig. 2 is a view from direction a in fig. 1.

Fig. 3 is a front view of the device for removing an angular ball bearing according to embodiment 2 of the present application.

Fig. 4 is a view from direction B in fig. 3.

Fig. 5 is an exploded view of the hydraulic apparatus according to embodiment 2 of the present application.

Fig. 6 is a schematic view of a buffer block structure in embodiment 2 of the present application.

Description of reference numerals: 1. a lead screw; 2. positioning the bottom plate; 21. positioning holes; 3. a hydraulic device; 31. a hydraulic jack; 311. a buffer block; 3111. mounting grooves; 32. a straight plate; 321. a connecting through hole; 33. a connecting member; 331. connecting a screw rod; 332. a connecting nut; 4. a motor shaft; 5. a fastener; 51. a toothed ring; 52. a driving gear; 53. a transmission gear; 6. a drive member; 61. a drive shaft; 62. a sleeve; 63. a clamping block; 7. a stopper; 71. a brake pad; 72. a rotating shaft; 73. a fixed block; 731. rotating the hole; 8. and a gland screw hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a device for disassembling a radial thrust ball bearing.

Example 1

Referring to fig. 1 and 2, the device for dismounting the radial thrust ball bearing comprises four guide screw rods 1, positioning base plates 2 and a hydraulic device 3, wherein the number of the guide screw rods 1 is four, the positioning base plates 2 are provided with four positioning holes 21, the positioning holes 21 are waist-shaped holes, the length direction of the positioning holes 21 is the same as the radial direction of the guide screw rods 1, and the guide screw rods 1 penetrate through the positioning holes 21; the side wall of the radial thrust ball bearing is provided with four gland screw holes 8 for mounting a gland, one end of a guide screw rod 1 is in threaded connection with the hole wall of the gland screw hole 8, the other end of the guide screw rod 1 is in threaded connection with a fastening piece 5, and the fastening piece 5 is a nut; the hydraulic device 3 comprises a hydraulic jack 31, the bottom end of the hydraulic jack 31 is abutted against the positioning bottom plate 2, and an ejection shaft of the hydraulic jack 31 is abutted against the motor shaft 4.

The implementation principle of the embodiment 1 is as follows: after the pore wall threaded connection with lead screw 1 and gland screw 8, insert lead screw 1 again in locating hole 21, promote positioning bottom plate 2 and remove to suitable position along lead screw 1, then 5 threaded connection of fastener on lead screw 1, and with positioning bottom plate 2 the lateral wall butt that deviates from motor shaft 4, again with the bottom of hydraulic jack 31 and positioning bottom plate 2 towards the lateral wall butt of motor shaft 4, the ejection shaft and the motor shaft 4 butt of hydraulic jack 31, accomplish the installation of dismantling the device of radial thrust ball bearing promptly.

Then, the hydraulic jack 31 is driven to extend, the positioning base plate 2 moves in the direction far away from the motor shaft 4 under the pushing of the hydraulic jack 31, the guide screw rod 1 and the radial thrust ball bearing both move synchronously along with the positioning base plate 2, and when the radial thrust ball bearing is separated from the contact with the motor shaft 4, the hydraulic jack 31 is closed.

And then, reversely rotating the fastening piece 5 to separate the fastening piece 5 from the guide screw rod 1, then rotating the guide screw rod 1 to pull out the guide screw rod 1 from the gland screw hole 8, and finally, completing the disassembly of the radial thrust ball bearing.

Example 2

Referring to fig. 3 and 4, the embodiment is different from embodiment 1 in that the fastening member 5 includes four toothed rings 51, a driving gear 52 and a transmission gear 53, the toothed rings 51 are sleeved on the lead screw 1, the inner circumferential wall of the toothed ring 51 is in threaded connection with the lead screw 1, and the toothed rings 51, the driving gear 52 and the transmission gear 53 are all rotatably connected to the side wall of the positioning bottom plate 2 away from the motor shaft 4; the outer peripheral walls of the four toothed rings 51 are engaged with the transmission gear 53, and the drive gear 52 is engaged with the transmission gear 53.

Referring to fig. 4, driving gear 52 is equipped with driving piece 6 on deviating from the lateral wall of location bottom plate 2, driving piece 6 includes drive shaft 61, sleeve 62 and fixture block 63, drive shaft 61 is the cylinder, the one end welding of drive shaft 61 is on the lateral wall that driving gear 52 deviates from location bottom plate 2, sleeve 62 cover is established on drive shaft 61, the inner wall and the drive shaft 61 butt of sleeve 62, fixture block 63 bonds with the one end that drive shaft 61 kept away from driving gear 52, fixture block 63 is circular block, the diameter of fixture block 63 is greater than the internal diameter of sleeve 62.

Referring to fig. 4, the side wall of the positioning bottom plate 2 departing from the motor shaft 4 is provided with a braking member 7, the braking member 7 comprises a braking block 71, a rotating shaft 72 and a fixing block 73, the fixing block 73 is welded on the positioning bottom plate 2, the fixing block 73 is provided with a rotating hole 731, the rotating shaft 72 is inserted into the rotating hole 731 and abuts against the hole wall of the rotating hole 731, one end of the braking block 71 is integrally connected with the rotating shaft 72, and the other end of the braking block 71 is clamped between two adjacent teeth on the outer wall of the driving gear 52.

Referring to fig. 5, the positioning hole 21 is a circular hole, the hydraulic device 3 further includes a straight plate 32 and a connecting member 33, the straight plate 32 is welded to the outer wall of the hydraulic jack 31 and abuts against the positioning base plate 2; be equipped with four connect the through hole 321 on the straight board 32, connecting piece 33 includes four connecting screw 331 and four coupling nut 332, and the one end of connecting screw 331 and the lateral wall welding of location bottom plate 2 orientation straight board 32, the other end of connecting screw 331 pass connect the through hole 321, coupling nut 332 and connecting screw 331 threaded connection and with the straight board 32 deviate from the lateral wall butt of location bottom plate 2.

Referring to fig. 5 and 6, the hydraulic jack 31 has a buffer block 311 on its ejection shaft, the buffer block 311 is a wood block, the buffer block 311 has a mounting groove 3111, the ejection shaft of the hydraulic jack 31 is inserted into the mounting groove 3111 and abuts against the groove wall, and the buffer block 311 abuts against the motor shaft 4.

The implementation principle of the embodiment 2 is as follows: after the guide screw rod 1 is in threaded connection with the hole wall of the gland screw hole 8, the guide screw rod 1 is inserted into the positioning hole 21, and meanwhile, the guide screw rod 1 is inserted into the toothed ring 51; then, the brake block 71 is rotated, the brake block 71 is separated from the driving gear 52, the sleeve 62 is held, the driving shaft 61 is pushed to rotate around the circumferential direction of the driving gear 52, the driving gear 52 drives the transmission gear 53 to rotate, the transmission gear 53 drives the four toothed rings 51 to rotate synchronously, the toothed rings 51 and the guide screw 1 generate thread feeding, the positioning bottom plate 2 moves along the guide screw 1, when the positioning bottom plate 2 moves to a proper position, the driving gear 52 stops rotating, the brake block 71 is rotated, and the brake block 71 is clamped with the driving gear 52.

The hydraulic jack 31 is placed between the positioning base plate 2 and the motor shaft 4, then the hydraulic jack 31 and the straight plate 32 are abutted against the positioning base plate 2, meanwhile, the connecting screw rod 331 is inserted into the connecting through hole 321, and then the connecting nut 332 is connected to the connecting screw rod 331 in a threaded mode; then, the buffer block 311 is sleeved on the ejecting shaft of the hydraulic jack 31, and the installation of the device for detaching the radial thrust ball bearing is completed.

The hydraulic jack 31 is driven to extend, the buffer block 311 abuts on the motor shaft 4, then the positioning bottom plate 2, the guide screw rod 1 and the radial thrust ball bearing synchronously move towards the direction far away from the motor shaft 4, and when the radial thrust ball bearing is separated from the motor shaft 4, the hydraulic jack 31 is closed.

Then the connecting nut 332 is separated from the connecting screw rod 331, and the hydraulic jack 31 is detached from the positioning bottom plate 2; and then the brake block 71 is rotated towards the direction far away from the driving gear 52, the driving gear 52 is rotated reversely, the positioning bottom plate 2 moves towards the direction far away from the hydraulic jack 31 along the guide screw rod 1, when the positioning bottom plate 2 is separated from the guide screw rod 1, the guide screw rod 1 is rotated, the guide screw rod 1 is separated from the radial thrust ball bearing, and the disassembly of the radial thrust ball bearing is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A device for disassembling a radial thrust ball bearing, characterized in that: including lead screw (1), positioning bottom plate (2) and hydraulic means (3), be equipped with locating hole (21) on positioning bottom plate (2), lead screw (1) wears to locate in locating hole (21), the one end and the positioning bottom plate (2) butt of hydraulic means (3), the other end butt of hydraulic means (3) is on motor shaft (4), be equipped with fastener (5) on lead screw (1), positioning bottom plate (2) deviate from lateral wall and fastener (5) butt of hydraulic means (3).

2. A device for dismounting a radial ball bearing according to claim 1, wherein: the hole wall of the positioning hole (21) extends along the radial direction of the guide screw rod (1), and the guide screw rod (1) is abutted to the hole wall of the positioning hole (21).

3. A device for dismounting a radial ball bearing according to claim 1, wherein: hydraulic means (3) include hydraulic jack (31), straight board (32) and connecting piece (33), the outer wall fixed connection of straight board (32) and hydraulic jack (31), hydraulic jack (31) and straight board (32) all with positioning bottom plate (2) butt, the one end and orientation motor shaft (4) of positioning bottom plate (2) are kept away from in hydraulic jack (31), connecting piece (33) are installed on positioning bottom plate (2), connecting piece (33) can be dismantled with straight board (32) and be connected.

4. A device for dismounting a radial ball bearing according to claim 3, wherein: connecting piece (33) are including connecting screw rod (331) and coupling nut (332), the one end and the location bottom plate (2) fixed connection of connecting screw rod (331), be equipped with connect the via hole (321) on straight board (32), connect screw rod (331) and wear to locate in connect the via hole (321), coupling nut (332) and connecting screw rod (331) threaded connection, coupling nut (332) and straight board (32) deviate from the lateral wall butt of location bottom plate (2).

5. A device for dismounting a radial ball bearing according to claim 3, wherein: hydraulic jack (31) are equipped with buffer block (311) towards the one end of motor shaft (4), be equipped with mounting groove (3111) on buffer block (311), hydraulic jack (31) are inserted and are located mounting groove (3111), buffer block (311) and motor shaft (4) butt.

6. A device for dismounting a radial ball bearing according to claim 1, wherein: fastener (5) include ring gear (51), driving gear (52) and drive gear (53), two are no less than in ring gear (51), driving gear (52) and drive gear (53) all rotate with location bottom plate (2) and are connected, lead screw (1) wears to locate in ring gear (51), lead screw (1) and ring gear (51) threaded connection, drive gear (53) and ring gear (51) meshing, driving gear (52) and drive gear (53) meshing, be equipped with driving piece (6) that are used for driving gear (52) on driving gear (52), be equipped with on location bottom plate (2) and be used for the stopper (7) of fixed driving gear (52).

7. An apparatus for dismounting a radial ball bearing according to claim 6, wherein: the driving piece (6) comprises a driving shaft (61), a sleeve (62) and a clamping block (63), one end of the driving shaft (61) is fixedly connected with the driving gear (52), the other end of the driving shaft (61) is fixedly connected with the clamping block (63), and the sleeve (62) is sleeved on the driving shaft (61).

8. An apparatus for dismounting a radial ball bearing according to claim 6, wherein: the braking piece (7) comprises a braking block (71), a rotating shaft (72) and a fixing block (73), the fixing block (73) is fixedly connected with the positioning bottom plate (2), the rotating shaft (72) is rotatably connected with the fixing block (73), the braking block (71) is fixedly connected with the rotating shaft (72), and the braking block (71) is clamped with the outer wall of the driving gear (52).