CN112032195A

CN112032195A - Slewing support bearing

Info

Publication number: CN112032195A
Application number: CN202010850032.6A
Authority: CN
Inventors: 赵青华; 李治良; 梁泽显
Original assignee: Hunan Meibeida Technology Co ltd
Current assignee: Hunan Meibeida Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-12-04

Abstract

The invention relates to the technical field of sliding pieces and discloses a rotary supporting bearing which comprises an inner shaft ring, wherein an outer shaft ring is arranged on the outer surface of the outer side of the inner shaft ring, a limiting ring is arranged on the outer surface of the right side of the outer shaft ring and positioned on the outer surface of the top of the inner shaft ring, a plurality of groups of balls are arranged between the outer surface of the outer side of the inner shaft ring and the inner side of the outer shaft ring, a rack is arranged on the outer surface of the outer side of the outer shaft ring, a shell is arranged on the outer surface of the outer side of the rack and positioned on the outer side of the outer shaft ring, a driving chamber is arranged on the outer side of the shell and positioned on the outer side of the rack, a rotating rod. This gyration support bearing, the motor passes through the bull stick and drives outer collar and rotate, improves the slip effect of inner collar, and the clamp plate centre gripping bull stick that corresponds simultaneously improves the stability of bull stick operation, reduces inside noise.

Description

Slewing support bearing

Technical Field

The invention relates to the technical field of sliding parts, in particular to a rotary support bearing.

Background

The rotary support bearing is a large bearing capable of bearing comprehensive loads and can simultaneously bear larger axial and radial loads and overturning moments. The slewing bearing is generally provided with a mounting hole, an internal gear or an external gear, a lubricating oil hole and a sealing device, so that the main machine is compact in design structure, simple and convenient to guide and easy to maintain.

A slewing bearing among current open patent CN105545942A, CN110805613A, there is certain drawback when using in the use to have the drawback, at first singly organize rolling structure, the sliding effect is relatively poor, and a ball damages, the bearing will be unable to use, the durability is relatively poor, secondly lack into oily function, inconvenient interpolation lubricating oil, influence the later maintenance, at last inside seal degree is too high, inconvenient dismantlement, long-time use, stability reduces by a wide margin, we propose a slewing bearing for this reason.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a slewing support bearing which has the advantages of being provided with a plurality of groups of rolling structures for combined use, strong in durability, convenient for oil entering, later maintenance, strong in stability and beneficial to long-time use, and solves the problems that a traditional single-group rolling structure is poor in sliding effect, poor in durability, lack of an oil entering function, inconvenient in adding lubricating oil, influence on later maintenance, too high in internal sealing degree, inconvenient to disassemble and long-time use and greatly reduced in stability.

(II) technical scheme

In order to realize the purposes of combination use of a plurality of groups of rolling structures, strong durability, convenient oil filling, convenient later maintenance, strong stability and long-time use, the invention provides the following technical scheme: the utility model provides a slewing bearing, includes inner collar 1, the outside surface of inner collar is provided with outer collar, the right side surface of outer collar and the top surface that is located inner collar are provided with the spacing ring, be provided with the multiunit ball between the outside surface of inner collar and the inboard of outer collar, the outside surface of outer collar is provided with the rack, the outside of rack and the outside surface that is located outer collar are provided with the shell, the outside of shell and the outside that is located the rack are provided with the drive chamber, be provided with the bull stick between the both sides of the inside of drive chamber, the right side of bull stick and the right side surface that is located the drive chamber inside are provided with the motor, the top and the inside that the bottom just is located the drive chamber of bull stick all are provided with the clamp plate.

Preferably, the inner side of the outer collar is provided with an elongate slot corresponding to the outer side of the inner collar, the inner side of the outer collar being tangential to the outer side of the inner collar.

Preferably, the outer surface of the outer side of the inner collar and the outer surface of the inner side of the outer collar are both provided with grooves corresponding to the balls, the adjacent balls are tangent, the outer surfaces of the tops and the bottoms of the balls are both provided with rolling rods, the outer surface of the outer side of the inner collar is provided with grooves corresponding to the rolling rods, the outer collar is tangent to the rolling rods, and the adjacent rolling rods are tangent.

Preferably, the roll bar is the tubular structure, the spacing ring is the rubber construction, the bottom of spacing ring is located the top of roll bar, the inboard surface of spacing ring and the inside that is located the outer collar ring are provided with the locator card strip, locator card strip and spacing ring are fixed connection, the inside of outer collar ring is provided with the rectangular groove corresponding with the locator card strip, the inboard outside that is located the outer collar ring of spacing ring is provided with the opening, the inboard opening of spacing ring is corresponding with the internal diameter of roll bar.

Preferably, the inner part of the inner collar and the inner part of the outer collar are provided with a plurality of groups of through holes, and the top and the bottom of the through hole of the inner collar are both provided with grooves.

Preferably, the top surface of shell and the top and the bottom surface that are located outer collar all are provided with sealed lid, sealed lid and shell are fixed connection, the inside of sealed lid is provided with the perforation, the top surface of sealed lid is provided with the corresponding opening with outer collar perforation, the inside of sealed lid is provided with the opening corresponding with the internal diameter of outer collar.

Preferably, the drive chamber is fixed connection with the shell, the right side of motor and the right side surface that is located the drive chamber are provided with the connector, the motor is electric connection with the connector, bull stick and motor are fixed connection, the outside surface of bull stick and the outside that is located the rack are provided with a screw thread section of thick bamboo, a screw thread section of thick bamboo is fixed connection with the bull stick, a screw thread section of thick bamboo and rack intermeshing, rack and outer collar are fixed connection, the height of rack is less than the height of outer collar.

Preferably, the both sides surface of bull stick all is provided with the locating piece, driving chamber and locating piece are squarely, the locating piece is swing joint with the bull stick, the inboard of locating piece and driving chamber is fixed connection, the outside of locating piece just is located and all is provided with the buffer board between the outside of motor and clamp plate, the buffer board is rubber construction, be provided with the spring between the outside surface of clamp plate and the inboard of driving chamber, the clamp plate is tangent with the outside of bull stick, the bottom surface of clamp plate is rubber construction.

(III) advantageous effects

Compared with the prior art, the invention provides a slewing bearing, which has the following beneficial effects:

1. this kind of gyration support bearing drives the bull stick through the motor and rotates, and the bull stick drives a screw thread section of thick bamboo and rotates, and a screw thread section of thick bamboo drives the rack and rotates, and the rack drives outer collar and rotates, uses in the combination of spring and clamp plate, improves the pivoted stability of bearing.

2. This gyration support bearing moves ball and roll bar rotation through interior axle ring and outer axle ring to the inside through outer axle ring and interior axle ring all is provided with the recess corresponding with ball and roll bar, and sealed lid and the corresponding opening of outer axle ring, has played the functional that improves the bearing, and multiunit rolling structure is tangent, thereby has reached the effect that improves the bearing durability.

3. This gyration support bearing, through the opening of the sealed roll bar of spacing ring, the locator card strip is connected with outer collar for fixed spacing ring, and under the basis of spacing ring rubber material, played the effect of convenient dismantlement and sealed roll bar, the opening of roll bar is tangent with the ball, thereby has reached the effect of convenient interpolation and sealed lubricating oil, the later stage maintenance of being convenient for.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a top view of the structure of the present invention;

FIG. 3 is a partial structural exploded view of the outer collar of the present invention;

FIG. 4 is a top view of a portion of the inner collar of the present invention;

FIG. 5 is an enlarged structural view of area A in FIG. 2 according to the present invention;

FIG. 6 is a right side view of the structure of the positioning plate of the present invention.

In the figure: 1. an inner collar; 2. an outer collar; 3. a limiting ring; 4. a ball bearing; 5. a rack; 6. a housing; 7. a drive chamber; 8. a rotating rod; 9. an electric motor; 10. pressing a plate; 11. rolling a rod; 12. positioning the clamping strip; 13. a sealing cover; 14. a wire connector; 15. a threaded barrel; 16. positioning blocks; 17. a buffer plate; 18. a spring.

Detailed Description

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.

The first embodiment is as follows:

as shown in fig. 1, a slewing support bearing, including inner collar 1, the outside surface of inner collar 1 is provided with outer collar 2, the right side surface of outer collar 2 and the top surface that is located inner collar 1 are provided with spacing ring 3, be provided with multiunit ball 4 between the outside surface of inner collar 1 and the inboard of outer collar 2, the outside surface of outer collar 2 is provided with rack 5, the outside of rack 5 and the outside surface that is located outer collar 2 are provided with shell 6, the outside of shell 6 and the outside that is located rack 5 are provided with drive chamber 7, be provided with bull stick 8 between the both sides of the inside of drive chamber 7, the right side of bull stick 8 and the right side surface that is located the inside of drive chamber 7 are provided with motor 9, the top and the bottom of bull stick 8 and the inside that is located drive chamber 7 all are provided with clamp plate 10.

The inside of inner collar 1 and the inside of outer collar 2 are provided with the multiunit and perforate, and the fenestrate top of inner collar 1 all is provided with the recess with the bottom, convenient fixed and installation.

The top surface of shell 6 and the top that is located outer collar 2 all is provided with sealed lid 13 with the bottom surface, and sealed lid 13 is fixed connection with shell 1, and the inside of sealed lid 13 is provided with the perforation, the later maintenance of being convenient for, dismantles sealed lid 13, and the top surface of sealed lid 13 is provided with the corresponding opening with outer collar 2 fenestrate, and the inside of sealed lid 13 is provided with the opening corresponding with the internal diameter of outer collar 2.

Example two:

in the first embodiment, as shown in fig. 2, 3 and 4, the inner side of the outer collar 2 is provided with a long groove corresponding to the outer side of the inner collar 1, and the inner side of the outer collar 2 is tangent to the outer side of the inner collar 1.

The outside surface of interior collar 1 and the inboard surface of outer collar 2 all are provided with in the corresponding recess of ball 4, and adjacent ball 4 is tangent, and the top and the bottom surface of ball 4 all are provided with roll bar 11, and the outside surface of interior collar 1 is provided with the recess corresponding with roll bar 11 for roll bar 11 is spacing, and outer collar 2 is tangent with roll bar 11, and adjacent roll bar 11 is tangent.

The roll bar 11 is the tubular structure, be used for the lubricating oil to flow, the spacing ring 3 is the rubber construction, conveniently dismantle the spacing ring, the bottom of spacing ring 3 is located the top of roll bar 11, be used for sealed roll bar 11, the inboard surface of spacing ring 3 and the inside that is located outer collar 2 are provided with locator card strip 12, locator card strip 12 is fixed connection with spacing ring 3, the inside of outer collar 2 is provided with the rectangular groove corresponding with locator card strip 12, the inboard outside that is located outer collar 2 of spacing ring 3 is provided with the opening, the inboard opening of spacing ring 3 is corresponding with the internal diameter of roll bar 11.

Example three:

on the basis of the first and second embodiments, as shown in fig. 5 and 6, the driving chamber 7 is fixedly connected to the housing 1, the wire connector 14 is disposed on the right side of the motor 9 and on the outer surface of the right side of the driving chamber 7, the motor 9 can be a Y200L1-2 type asynchronous motor, the power is 30kW, the motor 9 is electrically connected to the wire connector 14, the rotating rod 8 is fixedly connected to the motor 9, the threaded cylinder 15 is disposed on the outer surface of the outer side of the rotating rod 8 and on the outer side of the rack 5, the threaded cylinder 15 is fixedly connected to the rotating rod 8, the threaded cylinder 15 is engaged with the rack 5 to drive the outer collar 2 to rotate, the rack 5 is fixedly connected to the outer collar 2, and the height of the rack 5 is smaller than the height of the outer collar 2 to reduce the internal friction force.

The both sides surface of bull stick 8 all is provided with locating piece 16, drive chamber 7 is squarely with locating piece 16, locating piece 16 is swing joint with bull stick 8, locating piece 16 is fixed connection with the inboard of drive chamber 7, locating piece 16's the outside and be located all be provided with buffer board 17 between the outside of motor 9 and clamp plate 10, improve inside stability, buffer board 17 is rubber construction, be provided with spring 18 between the outside surface of clamp plate 10 and the inboard of drive chamber 7, clamp plate 10 is tangent with the outside of bull stick 8, the bottom surface of clamp plate 10 is rubber construction, be used for centre gripping bull stick 8.

When the device works, a user installs the outer shaft collar 2 and the inner shaft collar 1 into the shell 6, the rack 5 is meshed with the thread cylinder 15, and the sealing cover 13 is covered to finish installation; during the maintenance, through the opening in the 2 outsides of outer collar and sealed lid 13 fixed connection, place outer collar 2 and rotate, take spacing ring 3 out, can pour into lubricating oil into to roll bar 11, lubricating oil passes through the opening of roll bar 11, gets into the outside of ball 4, need not to dismantle, can maintain the bearing, in rethread locator card strip 12 inserts the recess in the 2 outsides of outer collar, can install spacing 3, sealed roll bar 11's opening, convenient to use, it is comparatively practical.

In conclusion, the motor 9 drives the rotating rod 8 to rotate, the rotating rod 8 drives the threaded cylinder 15 to rotate, the threaded cylinder 15 drives the rack 5 to rotate, the rack 5 drives the outer shaft ring 2 to rotate, and the combination of the spring 18 and the pressing plate 10 is used, so that the rubber structure of the pressing plate 10 is utilized to improve the rotation stability of the bearing; the inner shaft collar 1 and the outer shaft collar 2 drive the balls 4 and the rolling rods 11 to rotate, grooves corresponding to the balls 4 and the rolling rods 11 are formed in the outer shaft collar 2 and the inner shaft collar 1, and openings corresponding to the sealing covers 13 and the outer shaft collar 2 are formed in the sealing covers, so that workers can fix the outer shaft collar 2 conveniently during maintenance, the function of the bearing is improved, and multiple groups of rolling structures are tangent, and the effect of improving the durability of the bearing is achieved; through the opening of 3 sealed roller bars 11 of spacing ring, the locator card strip 12 is connected with outer axle collar 2 for fixed spacing ring 3, and under the basis of 3 rubber materials of spacing ring, played the effect of convenient dismantlement and sealed roller bar 11, the opening of roller bar 11 is tangent with ball 4, thereby has reached the effect of convenient interpolation and sealed lubricating oil, the later maintenance of being convenient for.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or bearing that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or bearing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A slewing bearing comprising an inner collar (1), characterized in that: an outer collar (2) is arranged on the outer surface of the outer side of the inner collar (1), a limiting ring (3) is arranged on the outer surface of the right side of the outer collar (2) and the outer surface of the top of the inner collar (1), a plurality of groups of balls (4) are arranged between the outer surface of the outer side of the inner collar (1) and the inner side of the outer collar (2), the outer surface of the outer side of the outer shaft ring (2) is provided with a rack (5), the outer surface of the outer side of the rack (5) and the outer surface of the outer side of the outer shaft ring (2) is provided with a shell (6), a driving chamber (7) is arranged on the outer side of the shell (6) and positioned on the outer side of the rack (5), a rotating rod (8) is arranged between the two sides of the interior of the driving chamber (7), a motor (9) is arranged on the right outer surface of the right side of the rotating rod (8) and positioned in the driving chamber (7), and pressing plates (10) are arranged at the top and the bottom of the rotating rod (8) and in the driving chamber (7).

2. A slewing bearing as claimed in claim 1, wherein: the inner side of the outer collar (2) is provided with a strip groove corresponding to the outer side of the inner collar (1), and the inner side of the outer collar (2) is tangent to the outer side of the inner collar (1).

3. A slewing bearing as claimed in claim 1, wherein: the outer surface of the outer side of the inner shaft ring (1) and the outer surface of the inner side of the outer shaft ring (2) are provided with grooves corresponding to the balls (4), the adjacent balls (4) are tangent, the rolling rods (11) are arranged on the outer surfaces of the top and the bottom of the balls (4), the grooves corresponding to the rolling rods (11) are arranged on the outer surface of the outer side of the inner shaft ring (1), the outer shaft ring (2) is tangent to the rolling rods (11), and the adjacent rolling rods (11) are tangent.

4. A slewing bearing according to claim 3, characterized in that: the utility model discloses a rolling rod, including rolling rod (11), spacing ring (3), locating clip strip (12) and spacing ring (3), rolling rod (11) are the tubular structure, spacing ring (3) are the rubber construction, the bottom of spacing ring (3) is located the top of rolling rod (11), the inside surface of spacing ring (3) just is located the inside of outer collar (2) and is provided with locating clip strip (12), locating clip strip (12) are fixed connection with spacing ring (3), the inside of outer collar (2) is provided with the rectangular groove corresponding with locating clip strip (12), the inboard outside that just is located outer collar (2) of spacing ring (3) is provided with the opening, the opening of spacing ring (3) inboard is corresponding with the internal diameter of rolling rod (11).

5. A slewing bearing as claimed in claim 1, wherein: the inner portion of the inner collar (1) and the inner portion of the outer collar (2) are provided with a plurality of groups of through holes, and the top and the bottom of each through hole of the inner collar (1) are provided with grooves.

6. A slewing bearing according to claim 5, characterized in that: the top surface of shell (6) and the top that is located outer collar (2) all are provided with sealed lid (13) with the bottom surface, sealed lid (13) are fixed connection with shell (1), the inside of sealed lid (13) is provided with the perforation, the top surface of sealed lid (13) is provided with the corresponding opening with outer collar (2) fenestrate, the inside of sealed lid (13) is provided with the opening corresponding with the internal diameter of outer collar (2).

7. A slewing bearing as claimed in claim 1, wherein: drive chamber (7) are fixed connection with shell (1), the right side of motor (9) and the right side surface that is located drive chamber (7) are provided with connector (14), motor (9) are electric connection with connector (14), bull stick (8) are fixed connection with motor (9), the outside surface of bull stick (8) and the outside that is located rack (5) are provided with a thread section of thick bamboo (15), a thread section of thick bamboo (15) are fixed connection with bull stick (8), a thread section of thick bamboo (15) and rack (5) intermeshing, rack (5) are fixed connection with outer collar (2), the height of rack (5) is less than the height of outer collar (2).

8. A slewing bearing as claimed in claim 1, wherein: the utility model discloses a motor, including runner (8), drive chamber (7), locating piece (16), buffer board (17), locating piece (16) and runner (8), locating piece (16) and the inboard of drive chamber (7) are fixed connection, all be provided with between the outside of locating piece (16) and the outside that is located motor (9) and clamp plate (10), buffer board (17) are the rubber construction, be provided with spring (18) between the outside surface of clamp plate (10) and the inboard of drive chamber (7), clamp plate (10) are tangent with the outside of runner (8), the bottom surface of clamp plate (10) is the rubber construction.