CN212177662U

CN212177662U - Contact ball type slewing bearing

Info

Publication number: CN212177662U
Application number: CN201922448023.XU
Authority: CN
Inventors: 李学奎
Original assignee: Sichuan Jinte Precision Bearing Co Ltd
Current assignee: Sichuan Jinte Precision Bearing Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-12-18
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a contact ball formula slewing bearing, including the inner circle main part, the inner wall of inner circle main part is provided with prevents iron fillings mechanism, the outer wall of inner circle main part is provided with multi-functional rust-resistant mechanism, multi-functional rust-resistant mechanism's outer wall is provided with ceramic ball mechanism, ceramic ball mechanism's outer wall is provided with the bearing inner race, the outer wall of bearing inner race is provided with the installation base, the lower extreme surface of installation base is provided with installation mechanism. A contact ball formula slewing bearing, through the multi-functional rust-resistant mechanism that sets up, installation mechanism, pottery ball mechanism and prevent iron fillings mechanism, can provide more powerful rust-resistant function and other functions that improve the result of use in the course of the work to and the mounting structure of the staff's installation of being convenient for, can also prevent the adverse effect of iron fillings to the bearing, be favorable to people to use.

Description

Contact ball type slewing bearing

Technical Field

The utility model relates to a bearing field specifically is a contact ball formula slewing bearing.

Background

The bearing is a part for fixing and reducing the load friction coefficient in the mechanical transmission process, or can be said, when other parts generate relative motion on the shaft, the bearing is an important basic part of various mechanical equipment, the precision, the performance, the service life and the reliability of the bearing play a decisive role on the precision, the performance, the service life and the reliability of a host machine, in mechanical products, the bearing belongs to a high-precision product, not only needs the comprehensive support of various subject theories of mathematics, physics and the like, but also needs a plurality of subjects of material science, heat treatment technology, precision machining and measurement technology, numerical control technology, effective numerical method, powerful computer technology and the like to serve, nowadays, domestic enterprises mainly engage in the production of general bearings, few special and high-end bearing production enterprises are needed, the technology is immature, therefore, domestic enterprises want to compete with foreign advanced bearing brands, even surpassing, still need to experience the development way of a very long time in the aspect of technology etc. along with the continuous increase of competition of bearing manufacturing industry, large-scale bearing manufacturing enterprises are getting more and more frequent to buy and integrate and capital operation, and domestic excellent bearing manufacturing enterprises are more and more paying more attention to the research of industry market, especially to the deep research of industry development environment and product purchaser, because of this, a large amount of domestic excellent bearing manufacturing brands are growing up rapidly, become the perk in the bearing manufacturing industry gradually.

When current bearing is installed and is used, at first, rust-resistant effect is not obvious, and the structure is comparatively simple moreover, leads to rust-resistant effect more and more poor along with the time lapse easily, and the function singleness, can't provide the various functions that need under the different environment, has certain limitation, and the inconvenient installation of part bearing brings inconvenience for staff's installation work, and receives iron fillings to influence easily, brings adverse effect to the life of bearing.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a contact ball formula slewing bearing possesses advantages such as rust-resistant effectual, multi-functional, prevent iron fillings, easy to assemble, can effectively solve the problem in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a contact ball formula slewing bearing, includes the inner circle main part, the inner wall of inner circle main part is provided with prevents iron fillings mechanism, the outer wall of inner circle main part is provided with multi-functional rust-resistant mechanism, multi-functional rust-resistant mechanism's outer wall is provided with ceramic ball mechanism, ceramic ball mechanism's outer wall is provided with the bearing inner race, the outer wall of bearing inner race is provided with the installation base, the lower extreme surface of installation base is provided with installation mechanism.

As the utility model discloses a preferred technical scheme, multi-functional rust-resistant mechanism is including glass steel plate, polyisobutylene rubber board, spread groove, rust-resistant pipeline, connecting block and rust-resistant intermediate layer, the connecting block sets up in the outer wall of rust-resistant pipeline, rust-resistant intermediate layer sets up the inside at rust-resistant pipeline, glass steel plate is located one side of polyisobutylene rubber board, the spread groove is located the lower extreme of polyisobutylene rubber board.

As a preferred technical scheme of the utility model, installation mechanism is including mounting panel, mounting hole, bottom plate and connecting axle, the mounting hole sets up in the inside of mounting panel, the bottom plate sets up the one side at the mounting panel, the connecting axle is located the upper end of bottom plate.

As the utility model discloses a preferred technical scheme, pottery ball mechanism is including inner splint, ceramic roller and outer splint, the inner splint sets up in the lower extreme of ceramic roller, the ceramic roller sets up the lower extreme at the outer splint.

As the utility model discloses a preferred technical scheme, prevent iron fillings mechanism including filter screen, magnetic path and iron fillings collecting chamber, the filter screen sets up in the upper end of iron fillings collecting chamber, the magnetic path sets up the inside at the iron fillings collecting chamber.

As a preferred technical scheme of the utility model, be provided with the fixed block between connecting block and the rust-resistant pipeline, the lower extreme surface of connecting block and the upper end surface of rust-resistant pipeline pass through fixed block fixed connection, the lower extreme fixed surface that rust-resistant interbedded one side surface passes through rust-resistant pipeline and connecting block is connected, be provided with the screw between glass steel sheet and the polyisobutylene rubber board, screw fixed connection is passed through with one side surface of polyisobutylene rubber board to one side surface of glass steel sheet, one side surface of spread groove is passed through polyisobutylene rubber board and is connected with one side fixed surface of glass steel sheet.

As a preferred technical scheme of the utility model, be provided with the circular port between bottom plate and the connecting axle, the lower extreme surface of connecting axle passes through circular port fixed connection with the upper end surface of bottom plate, one side surface of mounting panel passes through the lower extreme fixed surface of bottom plate with the connecting axle and is connected, one side surface of mounting hole passes through the mounting panel and is connected with one side fixed surface of bottom plate.

As a preferred technical scheme of the utility model, be provided with the standing groove between inner plate and the ceramic roller, the lower extreme surface of ceramic roller passes through standing groove swing joint with the upper end surface of inner plate, one side surface swing joint of ceramic roller and inner plate is passed through to one side surface of outer splint.

As the utility model discloses a preferred technical scheme, be provided with between filter screen and the iron fillings collecting chamber and collude the ring, the lower extreme surface of filter screen and the upper end surface of iron fillings collecting chamber are through colluding ring fixed connection, one side surface of magnetic path passes through the iron fillings collecting chamber and is connected with one side fixed surface of filter screen.

As an optimal technical scheme of the utility model, be provided with the powerful glue between bearing inner race and the installation base, the lower extreme surface of bearing inner race and the upper end surface of installation base pass through the powerful glue fixed connection.

(III) advantageous effects

Compared with the prior art, the utility model provides a contact ball formula slewing bearing possesses following beneficial effect:

1. through the multifunctional anti-rust mechanism arranged on the inner ring main body, the multifunctional anti-rust mechanism comprises a glass steel plate, a polyisobutylene rubber plate, a connecting groove, an anti-rust pipeline, a connecting block and an anti-rust interlayer, the surface of the anti-rust pipeline is provided with an anti-rust coating which can well play a role of rust prevention, the connecting block plays a role of effective connection through the arranged connecting block, the anti-rust interlayer is arranged inside the anti-rust pipeline and is provided with anti-rust liquid, so that the anti-rust effect can be further enhanced, through the arranged polyisobutylene rubber plate, the polyisobutylene rubber still has good elasticity and enough strength at low temperature, the polyisobutylene rubber can resist the corrosion of media such as hydrochloric acid with various concentrations, sulfuric acid with less than 80 percent, dilute nitric acid with less than 40 percent, hydrofluoric acid with alkali liquor and various salt solutions, and the polyisobutylene rubber has light weight and can provide an anti-corrosion, the weight of the pipeline to be born is also reduced, the connecting groove can well play a connecting role through the arranged connecting groove, the glass fiber reinforced plastic plate is made of glass fiber reinforced plastics, the glass fiber reinforced plastics have higher mechanical strength and integrity due to the reinforcing effect of glass fiber, and are not easy to be damaged by mechanical impact and the like, the glass fiber reinforced plastic lining layer is composed of four parts, the bottom layer is a coating which is coated for preventing rust return after the surface layer of the equipment is treated, the putty layer mainly fills the uneven part of the surface of the base body, the leveling is realized through the putty, the covering capability of a fiber product is improved, the reinforcing layer mainly plays a reinforcing role, the lining layer forms a whole, the surface layer is a high resin layer and has good compactness and impermeability, the multifunctional antirust mechanism can provide a powerful antirust function in the working process, and the double antirust protection is realized, the bearing can be greatly prevented from leading to poorer and poorer antirust effect along with the lapse of time, other functions required by the bearing can be provided in daily work, the functionality and the practicability are enhanced, and the bearing is favorable for people to use.

2. Through the installation mechanism installed on the bearing, the installation mechanism comprises an installation plate, an installation hole, a bottom plate and a connecting shaft, the installation mechanism can provide a structure convenient for workers to install, the time required by the installation of the bearing is saved, and the workers can conveniently perform daily installation and use.

3. Through installing the ceramic ball mechanism on the bearing, ceramic ball mechanism is including interior splint, ceramic roller and outer splint, and ceramic ball mechanism can replace the roller of traditional material into ceramic material's roller, makes things convenient for the bearing to carry out daily use more, has also improved the result of use of bearing.

4. Through installing the anti-iron-dust mechanism on the bearing, anti-iron-dust mechanism is including filter screen, magnetic path and iron fillings containing chamber, and in the daily use of bearing, iron fillings pass through the filter screen and get into iron fillings containing chamber, and the iron fillings that get into iron fillings containing chamber can receive the influence of magnetic path, adheres to the surface at the magnetic path, realizes the function of preventing iron fillings through this principle, has improved the result of use of bearing, has also strengthened the life of bearing, is favorable to people to use.

Drawings

Fig. 1 is an overall structure schematic diagram of the contact ball type slewing bearing of the present invention.

Fig. 2 is a structural diagram of a multifunctional rust-proof mechanism in the contact ball-type slewing bearing of the present invention.

Fig. 3 is a structural diagram of the mounting mechanism in the contact type ball slewing bearing of the present invention.

Fig. 4 is a structural diagram of a ceramic ball mechanism in the contact ball-type slewing bearing of the present invention.

Fig. 5 is a structural diagram of the scrap iron prevention mechanism in the contact ball type slewing bearing of the present invention.

Fig. 6 is a front view of the contact ball slewing bearing of the present invention.

In the figure: 1. an inner race body; 2. a multifunctional rust prevention mechanism; 3. an installation mechanism; 4. a ceramic ball mechanism; 5. An iron scrap prevention mechanism; 6. installing a base; 7. a bearing outer race; 201. a glass fiber reinforced plastic plate; 202. a polyisobutylene rubber sheet; 203. connecting grooves; 204. an antirust pipeline; 205. connecting blocks; 206. an antirust interlayer; 301. mounting a plate; 302. mounting holes; 303. a base plate; 304. a connecting shaft; 401. an inner splint; 402. a ceramic roller; 403. an outer splint; 501. filtering with a screen; 502. a magnetic block; 503. iron fillings collecting chamber.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 6, a contact ball slewing bearing comprises an inner ring main body 1, wherein an iron scrap prevention mechanism 5 is arranged on the inner wall of the inner ring main body 1, a multifunctional rust prevention mechanism 2 is arranged on the outer wall of the inner ring main body 1, a ceramic ball mechanism 4 is arranged on the outer wall of the multifunctional rust prevention mechanism 2, a bearing outer ring 7 is arranged on the outer wall of the ceramic ball mechanism 4, an installation base 6 is arranged on the outer wall of the bearing outer ring 7, and an installation mechanism 3 is arranged on the outer surface of the lower end of the installation base.

Further, the multifunctional rust prevention mechanism 2 comprises a glass fiber reinforced plastic plate 201, a polyisobutylene rubber plate 202, a connecting groove 203, a rust prevention pipeline 204, a connecting block 205 and a rust prevention interlayer 206, wherein the connecting block 205 is arranged on the outer wall of the rust prevention pipeline 204, the rust prevention interlayer 206 is arranged inside the rust prevention pipeline 204, the glass fiber reinforced plastic plate 201 is positioned on one side of the polyisobutylene rubber plate 202, the connecting groove 203 is positioned at the lower end of the polyisobutylene rubber plate 202, a fixing block is arranged between the connecting block 205 and the rust prevention pipeline 204, the outer surface of the lower end of the connecting block 205 is fixedly connected with the outer surface of the upper end of the rust prevention pipeline 204 through the fixing block, the outer surface of one side of the rust prevention interlayer 206 is fixedly connected with the outer surface of the lower end of the connecting block 205 through the rust prevention pipeline 204, a screw is arranged between the glass fiber, the outer surface of one side of the connecting groove 203 is fixedly connected with the outer surface of one side of the glass steel plate 201 through the polyisobutylene rubber plate 202, the connecting block 205 is arranged to play an effective connecting role through the connecting block 205, the antirust interlayer 206 is arranged inside the antirust pipeline 204 through the arranged antirust interlayer 206, the antirust liquid is arranged inside the antirust interlayer 206, the antirust effect can be further enhanced, the polyisobutylene rubber still has good elasticity and enough strength at low temperature through the arranged polyisobutylene rubber plate 202, the polyisobutylene rubber can resist corrosion of media such as hydrochloric acid with various concentrations, sulfuric acid with less than 80 percent, dilute nitric acid, hydrofluoric acid with less than 40 percent, alkali liquor, various salt solutions and the like, the polyisobutylene rubber is light in weight, the weight of the pipeline to be born can be reduced while the anticorrosion function is provided, and the connecting groove 203 can play a good connecting role through the arranged connecting groove 203, through the arranged glass fiber reinforced plastic plate 201, the glass fiber reinforced plastic plate 201 is made of glass fiber reinforced plastic, the glass fiber reinforced plastic has high mechanical strength and integrity and is not easy to damage due to mechanical impact and the like, the glass fiber reinforced plastic lining layer is composed of four parts, the bottom layer is a coating which is coated for preventing rust return after the surface layer of the equipment is treated, the putty layer mainly fills the uneven part of the surface of the base body, the leveling is realized through the putty, the covering capability of a fiber product is improved, the reinforcing layer mainly plays a role in reinforcing, the lining layer forms a whole, the surface layer is a high resin layer and has good compactness and impermeability, the multifunctional antirust mechanism 2 can provide a powerful antirust function in the working process, the double antirust protection can greatly avoid the antirust effect of a bearing from being more and more poor along with the lapse of time, and can also provide other functions required by the bearing in daily work, the functionality and the practicability are enhanced.

Further, installation mechanism 3 is including mounting panel 301, mounting hole 302, bottom plate 303 and connecting axle 304, mounting hole 302 sets up in the inside of mounting panel 301, bottom plate 303 sets up the one side at mounting panel 301, connecting axle 304 is located the upper end of bottom plate 303, be provided with the circular port between bottom plate 303 and the connecting axle 304, the lower extreme surface of connecting axle 304 and the upper end surface of bottom plate 303 pass through circular port fixed connection, the lower extreme surface fixed connection of one side surface of mounting panel 301 through bottom plate 303 and connecting axle 304, one side surface of mounting hole 302 passes through one side surface fixed connection of mounting panel 301 and bottom plate 303, installation mechanism 3 can provide the structure of being convenient for the staff to install, the time that the bearing installation needs has been saved, make things convenient for the staff to carry out daily installation and use.

Further, ceramic ball mechanism 4 is including interior splint 401, ceramic roller 402 and outer splint 403, interior splint 401 sets up in the lower extreme of ceramic roller 402, ceramic roller 402 sets up the lower extreme at outer splint 403, be provided with the standing groove between interior splint 401 and the ceramic roller 402, the lower extreme surface of ceramic roller 402 passes through standing groove swing joint with the upper end surface of interior splint 401, one side surface of outer splint 403 passes through one side surface swing joint of ceramic roller 402 with interior splint 401, ceramic ball mechanism 4 can replace the roller of traditional material into the roller of ceramic material, more make things convenient for the bearing to carry out daily use, the result of use of bearing has also been improved.

Further, scrap iron prevention mechanism 5 is including filter screen 501, magnetic path 502 and iron fillings collecting chamber 503, filter screen 501 sets up in the upper end of iron fillings collecting chamber 503, magnetic path 502 sets up the inside at iron fillings collecting chamber 503, be provided with the colluding ring between filter screen 501 and the iron fillings collecting chamber 503, the lower extreme surface of filter screen 501 and the upper end surface of iron fillings collecting chamber 503 pass through colluding ring fixed connection, one side surface of magnetic path 502 passes through iron fillings collecting chamber 503 and one side surface fixed connection of filter screen 501, iron fillings get into iron fillings collecting chamber 503 through filter screen 501, the iron fillings that get into iron fillings collecting chamber 503 can receive the influence of magnetic path 502, adhere to the surface at magnetic path 502, realize scrap iron prevention's function through this principle, the result of use of bearing is improved, the life of bearing has also been strengthened.

The working principle is as follows: the utility model provides a contact ball type slewing bearing, after correctly installing according to corresponding installation steps, through installing the multi-functional rust-proof mechanism 2 on the bearing, multi-functional rust-proof mechanism 2 is including glass steel plate 201, polyisobutylene rubber plate 202, spread groove 203, rust-proof pipeline 204, connecting block 205 and rust-proof intermediate layer 206, through the connecting block 205 that sets up, connecting block 205 plays effective connection effect, through the rust-proof intermediate layer 206 that sets up, rust-proof intermediate layer 206 sets up inside rust-proof pipeline 204, the inside antirust liquid that is provided with of rust-proof intermediate layer 206, can further strengthen rust-proof effect, through polyisobutylene rubber plate 202 that sets up, polyisobutylene rubber still has good elasticity and sufficient intensity at low temperature, it can be able to bear the hydrochloric acid of various concentrations, sulphuric acid less than 80%, dilute nitric acid, hydrofluoric acid less than 40%, the corruption of mediums such as lye and various saline solution, the polyisobutylene rubber is light in weight, the weight of a pipeline to be borne can be reduced while an anti-corrosion function is provided, the connecting groove 203 can well play a connecting role through the arranged connecting groove 203, the glass steel plate 201 is made of glass steel, the glass steel has high mechanical strength and integrity due to the reinforcing effect of glass fibers, is not easy to be damaged by mechanical impact and the like, the glass steel lining layer is composed of four parts, the bottom layer is a coating which is coated for preventing rust return after the surface layer of the equipment is treated, the putty layer mainly fills the uneven part of the surface of the base body, the paving capability of a fiber product is improved through putty leveling, the reinforcing layer mainly plays a reinforcing role, the lining layer is integrated, the surface layer is a high resin layer and has good compactness and impermeability, and the multifunctional anti-rust mechanism 2 can provide a powerful anti-rust function in the working process, the double rust-proof protection can greatly avoid the bearing from causing increasingly poor rust-proof effect along with the lapse of time, other functions required by the bearing can be provided in daily work, the functionality and the practicability are enhanced, through the installation mechanism 3 arranged on the bearing, the installation mechanism 3 comprises the installation plate 301, the installation hole 302, the bottom plate 303 and the connecting shaft 304, the installation mechanism 3 can provide a structure convenient for workers to install, the time required by the installation of the bearing is saved, the workers can conveniently carry out the daily installation and use, through the ceramic ball mechanism 4 arranged on the bearing, the ceramic ball mechanism 4 comprises the inner clamping plate 401, the ceramic roller 402 and the outer clamping plate 403, the ceramic ball mechanism 4 can replace the roller made of the traditional material into the roller made of the ceramic material, the daily use of the bearing is more convenient, and the use effect of the bearing is also improved, through installing iron fillings mechanism 5 on the bearing, iron fillings mechanism 5 is including filter screen 501, magnetic path 502 and iron fillings containing chamber 503, and iron fillings pass through filter screen 501 entering iron fillings containing chamber 503, and the iron fillings that get into iron fillings containing chamber 503 can receive the influence of magnetic path 502, adhere to on the surface of magnetic path 502, realize the function of preventing iron fillings through this principle, have improved the result of use of bearing, have also strengthened the life of bearing.

It is noted that, herein, relational terms such as first and second (a, b, etc.) 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 apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A contact ball slewing bearing, includes inner circle main part (1), its characterized in that: the inner wall of inner circle main part (1) is provided with prevents iron fillings mechanism (5), the outer wall of inner circle main part (1) is provided with multi-functional rust-resistant mechanism (2), the outer wall of multi-functional rust-resistant mechanism (2) is provided with ceramic ball mechanism (4), the outer wall of ceramic ball mechanism (4) is provided with bearing inner race (7), the outer wall of bearing inner race (7) is provided with installation base (6), the lower extreme surface of installation base (6) is provided with installation mechanism (3).

2. A contact ball slewing support bearing according to claim 1, wherein: multifunctional rust-resistant mechanism (2) is including glass steel board (201), polyisobutylene rubber board (202), spread groove (203), rust-resistant pipeline (204), connecting block (205) and rust-resistant intermediate layer (206), connecting block (205) set up in the outer wall of rust-resistant pipeline (204), rust-resistant intermediate layer (206) set up the inside at rust-resistant pipeline (204), glass steel board (201) are located one side of polyisobutylene rubber board (202), spread groove (203) are located the lower extreme of polyisobutylene rubber board (202).

3. A contact ball slewing support bearing according to claim 1, wherein: installation mechanism (3) including mounting panel (301), mounting hole (302), bottom plate (303) and connecting axle (304), mounting hole (302) set up in the inside of mounting panel (301), bottom plate (303) set up the one side at mounting panel (301), connecting axle (304) are located the upper end of bottom plate (303).

4. A contact ball slewing support bearing according to claim 1, wherein: the ceramic ball mechanism (4) comprises an inner clamping plate (401), a ceramic roller (402) and an outer clamping plate (403), wherein the inner clamping plate (401) is arranged at the lower end of the ceramic roller (402), and the ceramic roller (402) is arranged at the lower end of the outer clamping plate (403).

5. A contact ball slewing support bearing according to claim 1, wherein: anti-iron fillings mechanism (5) are including filter screen (501), magnetic path (502) and iron fillings containing chamber (503), filter screen (501) set up in the upper end of iron fillings containing chamber (503), magnetic path (502) set up the inside at iron fillings containing chamber (503).

6. A contact ball slewing support bearing according to claim 2, wherein: be provided with the fixed block between connecting block (205) and rust-resistant pipeline (204), the lower extreme surface of connecting block (205) and the upper end surface of rust-resistant pipeline (204) pass through fixed block fixed connection, the lower extreme external surface fixed connection of rust-resistant pipeline (204) and connecting block (205) is passed through to one side surface of rust-resistant intermediate layer (206), be provided with the screw between glass steel sheet (201) and polyisobutylene rubber board (202), screw fixed connection is passed through to one side surface of glass steel sheet (201) and one side surface of polyisobutylene rubber board (202), one side surface of spread groove (203) passes through one side external surface fixed connection of polyisobutylene rubber board (202) and glass steel sheet (201).

7. A contact ball slewing support bearing according to claim 3, wherein: be provided with the circular port between bottom plate (303) and connecting axle (304), the lower extreme surface of connecting axle (304) passes through circular port fixed connection with the upper end surface of bottom plate (303), the lower extreme surface fixed connection of bottom plate (303) and connecting axle (304) is passed through to the one side surface of mounting panel (301), the one side surface of mounting hole (302) passes through mounting panel (301) and one side surface fixed connection of bottom plate (303).

8. A contact ball slewing support bearing according to claim 4, wherein: a placing groove is formed between the inner clamping plate (401) and the ceramic roller (402), the outer surface of the lower end of the ceramic roller (402) is movably connected with the outer surface of the upper end of the inner clamping plate (401) through the placing groove, and the outer surface of one side of the outer clamping plate (403) is movably connected with the outer surface of one side of the inner clamping plate (401) through the ceramic roller (402).

9. A contact ball slewing support bearing according to claim 5, wherein: be provided with between filter screen (501) and iron fillings apotheca (503) and collude the ring, the lower extreme surface of filter screen (501) and the upper end surface of iron fillings apotheca (503) are through colluding ring fixed connection, one side surface of magnetic path (502) is through iron fillings apotheca (503) and one side surface fixed connection of filter screen (501).

10. A contact ball slewing support bearing according to claim 1, wherein: a strong glue is arranged between the bearing outer ring (7) and the mounting base (6), and the outer surface of the lower end of the bearing outer ring (7) is fixedly connected with the outer surface of the upper end of the mounting base (6) through the strong glue.