CN103032459B - Combination bearing provided with double-axis structure - Google Patents
Combination bearing provided with double-axis structure Download PDFInfo
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- CN103032459B CN103032459B CN201210582782.5A CN201210582782A CN103032459B CN 103032459 B CN103032459 B CN 103032459B CN 201210582782 A CN201210582782 A CN 201210582782A CN 103032459 B CN103032459 B CN 103032459B
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Abstract
The invention belongs to the field of bearing manufacturing, and particularly relates to a combination bearing provided with a double-axis combination structure. The combination bearing is suitable for the field of aviation fittings, adopts the double-axis combination structure, and comprises an angular contact ball bearing and a thrust angular contact ball bearing, wherein the angular contact ball bearing rotates around a first axis; steel balls guide the thrust ball bearing to rotate around a second axis; and the double-axis structure is formed. With the adoption of the structure, the combination bearing can satisfy use demands of supporting components for aviation and the like on light weight, integration and high precision, and the combination bearing has the advantages that the combination bearing is light in weight, high in precision and long in service life, and occupies a small space.
Description
Technical field
The invention belongs to bearing mnanufacture field, relate to a kind of combination bearing of Double-axis composite structure concretely, be applicable to aviation accessory field and use.
Background technique
Aviation industry is the high-end industry driving all sectors of the national economy high speed development, and it also represents a national Sci-Tech Level.Especially future war compare be control of the air, the command of the sea ability compare with.Therefore, the development of various novel aircrafts and air equipment has become the project that world man drops into a large amount of human and material resources, financial resources fall over each other development.Thereupon, for the performance of aircraft and the supporting each component of air equipment is had higher requirement.Bearing, as the support unit of its rotation portion, plays very important effect to the performance of main frame, and it directly affects the precision of main frame.In view of the particularity of aircraft bearing, its development trend is to lightweight, the development of integrated, highi degree of accuracy, but current existing bearing still can not meet above-mentioned requirements, there is complex structure more, defect that number of spare parts is many, weight is large and the life-span is shorter etc.
Summary of the invention
In view of the defect that prior art exists, the object of the invention is the combination bearing that a kind of Double-axis composite structure will be provided, meet aviation field support unit for bearing lightweight, the user demand that integrated, highi degree of accuracy is high.
To achieve these goals, the technical solution adopted in the present invention is Double-axis airframe bearing, it is characterized in that: this bearing is made up of the first outer ring, the first inner ring, the second outer ring, the second inner ring, back-up ring, screw, play spacer, steel ball, first row steel ball, secondary series steel ball, retainer, described first inner ring is made up of upper part, lower part and supporting part; Described retainer is installed between the first outer ring and the first inner ring lower part, contacts in the pocket hole that steel ball is installed on retainer with the first outer ring raceway, the first inner ring lower part raceway, composition clutch shaft bearing structure, and the axle center of this part is the first axle center; Described secondary series steel ball and the first inner ring raceway, the contacting of the second inner ring supporting part raceway; Described first row steel ball contacts with the second outer ring raceway, the second inner ring raceway, first inner ring upper part end face is provided with screw hole, the external diameter of the first inner ring upper part and the internal diameter of the second inner ring cooperatively interact, and form the second bearing structure, and the axle center of this structure is the second axle center; Be provided with back-up ring outside described first inner ring and the second inner ring, back-up ring is coordinated with screw hole by screw, and be fixed on the first inner ring, play spacer is arranged between back-up ring and screw; Described first axle center and the second axle center have certain angle.
Described clutch shaft bearing structure is angular contact ball bearing structure, and the second bearing structure is that steel ball guides thrust ball bearing structure.
The steel ball of described clutch shaft bearing structure is Double-row ball, is respectively the 3rd row steel ball, the 4th row steel ball.
First row steel ball, the secondary series steel ball of described second bearing structure all adopt full complement.
Described clutch shaft bearing structure rotates around the first axle center, and the second bearing structure rotates around the second axle center, forms Double-axis structure.
Described screw hole direction is consistent with the second axis direction.
The angle that described first axle center and the second axle center are formed is acute angle.
Described retainer material is PEEK 450.
Excellent effect of the present invention: the present invention adopts Double-axis composite structure, be made up of angular contact ball bearing and angular contact thrust ball bearing, angular contact ball bearing part rotates around the first axle center, steel ball guides thrust ball bearing part to rotate around the second axle center, form Double-axis structure, such structure can meet the support units such as aviation for lightweight, the user demand that integrated, highi degree of accuracy is high, has that quality is light, precision is high, long service life, and the advantage such as occupy little space.
Accompanying drawing explanation
Fig. 1 is structural profile sketch of the present invention;
Fig. 2 is plan structure schematic diagram of the present invention.
In figure, the 1, first outer ring, the 2, first inner ring, the 3, second outer ring, the 4, second inner ring, 5, back-up ring, 6, screw, 7, play spacer, 8, first row steel ball, 9, secondary series steel ball, 10, the 3rd row steel ball, the 11, the 4th row steel ball, 12, retainer, A, the first axle center, B, the second axle center.
Embodiment
Technological scheme of the present invention is further illustrated below in conjunction with accompanying drawing.
Double-axis combination bearing, as shown in Figure 1 and Figure 2, it is characterized in that: Double-axis combination bearing, it is characterized in that: this bearing is made up of the first inner ring 2, second outer ring 3, second, outer ring 1, first inner ring 4, back-up ring 5, screw 6, play spacer 7, steel ball, first row steel ball 8, secondary series steel ball 9, retainer 12, and described first inner ring 2 is made up of upper part, lower part and supporting part; Described retainer 12 is installed between the first outer ring 1 and the first inner ring 2 lower part, contact with the first outer ring 1 raceway, the first inner ring 2 lower part raceway in the pocket hole that steel ball is installed on retainer 12, composition clutch shaft bearing structure, the axle center of this part is the first axle center A; Described secondary series steel ball 9 and the first inner ring 2 raceway, the contacting of the second inner ring 4 supporting part raceway; Described first row steel ball 8 contacts with the second outer ring 2 raceway, the second inner ring 4 raceway, first inner ring 2 upper part end face is provided with screw hole, the external diameter of the first inner ring 2 upper part and the internal diameter of the second inner ring 4 cooperatively interact, and form the second bearing structure, and the axle center of this structure is the second axle center B; Be provided with back-up ring 5 outside described first inner ring 2 and the second inner ring 4, back-up ring 5 is coordinated with screw hole by screw 6, and be fixed on the first inner ring 2, play spacer 7 is arranged between back-up ring 5 and screw 6; Described first axle center A and the second axle center B has certain angle.
Described clutch shaft bearing structure is angular contact ball bearing structure, and the second bearing structure is that steel ball guides thrust ball bearing structure.
The steel ball of described clutch shaft bearing structure is Double-row ball, is respectively the 3rd row steel ball 10, the 4th row steel ball 11.
First row steel ball 8, the secondary series steel ball 9 of described second bearing structure all adopt full complement.
Described clutch shaft bearing structure rotates around the first axle center A, and the second bearing structure rotates around the second axle center B, forms Double-axis structure.
Described screw hole direction is consistent with the second B direction, axle center.
The angle of described first axle center A and the second axle center B is acute angle.
The material of described retainer 12 is PEEK 450.
Described angular contact ball bearing structure is around the first axle center A High Rotation Speed, and the first inner ring 2 plays the effect of compound Internal and external cycle, and it had both played the action of inner of angular contact ball bearing structure, plays again the compound outer ring effect of angular contact thrust ball bearing structure; The effect of compound Internal and external cycle is played in second outer ring, it had both played the outer ring effect of angular contact thrust ball bearing structure, play again and angular contact ball bearing linkage structure compound action of inner, this angular contact thrust ball bearing structure, while the second axle center B High Rotation Speed, does oscillating motion relative to the first axle center A again.
Claims (8)
1. Double-axis textural association bearing, it is characterized in that: this bearing is made up of the first outer ring, the first inner ring, the second outer ring, the second inner ring, back-up ring, screw, play spacer, steel ball, first row steel ball, secondary series steel ball, retainer, described first inner ring is made up of upper part, lower part and supporting part; Described retainer is installed between the first outer ring and the first inner ring lower part, contacts in the pocket hole that steel ball is installed on retainer with the first outer ring raceway, the first inner ring lower part raceway, composition clutch shaft bearing structure, and the axle center of this part is the first axle center; Described secondary series steel ball contacts with the first inner ring raceway, the second inner ring supporting part raceway; Described first row steel ball contacts with the second outer ring raceway, the second inner ring raceway, first inner ring upper part end face is provided with screw hole, the external diameter of the first inner ring upper part and the internal diameter of the second inner ring cooperatively interact, and form the second bearing structure, and the axle center of this structure is the second axle center; Be provided with back-up ring outside described first inner ring and the second inner ring, back-up ring is coordinated with screw hole by screw, and be fixed on the first inner ring, play spacer is arranged between back-up ring and screw; Described first axle center and the second axle center have certain angle.
2. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: described clutch shaft bearing structure is angular contact ball bearing structure, the second bearing structure is that steel ball guides thrust ball bearing structure.
3. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: the steel ball of described clutch shaft bearing structure is Double-row ball, be respectively the 3rd row steel ball, the 4th row steel ball.
4. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: first row steel ball, the secondary series steel ball of described second bearing structure all adopt full complement.
5. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: described clutch shaft bearing structure rotates around the first axle center, and the second bearing structure rotates around the second axle center, form Double-axis structure.
6. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: described screw hole direction is consistent with the second axis direction.
7. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: the angle that described first axle center and the second axle center are formed is acute angle.
8. according to the Double-axis textural association bearing described in claim 1, it is characterized in that: described retainer material is PEEK450.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582782.5A CN103032459B (en) | 2012-12-28 | 2012-12-28 | Combination bearing provided with double-axis structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582782.5A CN103032459B (en) | 2012-12-28 | 2012-12-28 | Combination bearing provided with double-axis structure |
Publications (2)
| Publication Number | Publication Date |
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| CN103032459A CN103032459A (en) | 2013-04-10 |
| CN103032459B true CN103032459B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210582782.5A Active CN103032459B (en) | 2012-12-28 | 2012-12-28 | Combination bearing provided with double-axis structure |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386188A (en) * | 2018-04-13 | 2018-08-10 | 国家海洋局第海洋研究所 | A kind of underwater robot can portable horizontal direction geological sampling drilling tool |
| CN110725857B (en) * | 2019-10-30 | 2024-02-09 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | High-integration double-shaft spindle bearing unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4989999A (en) * | 1989-03-23 | 1991-02-05 | Hoesch Aktiengesellschaft | Empty-center rotating-roller joint |
| CN1734107A (en) * | 2004-08-11 | 2006-02-15 | 洛阳轴承集团有限公司 | Combined bearing with shaft |
| JP2010091038A (en) * | 2008-10-09 | 2010-04-22 | Nsk Ltd | Radial-thrust combination bearing |
| CN201884459U (en) * | 2010-02-04 | 2011-06-29 | 鲁国裕 | Radial and thrust combined rolling bearing |
| CN202182149U (en) * | 2011-07-08 | 2012-04-04 | 南京高精船用设备有限公司 | Lower portion gear box input mechanism of ship propeller |
| CN102777493A (en) * | 2011-05-10 | 2012-11-14 | 洛阳锐航钢球有限公司 | Novel combined bearing |
| CN203130792U (en) * | 2012-12-28 | 2013-08-14 | 瓦房店轴承集团有限责任公司 | Dual-axis-structure combined bearing |
-
2012
- 2012-12-28 CN CN201210582782.5A patent/CN103032459B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4989999A (en) * | 1989-03-23 | 1991-02-05 | Hoesch Aktiengesellschaft | Empty-center rotating-roller joint |
| CN1734107A (en) * | 2004-08-11 | 2006-02-15 | 洛阳轴承集团有限公司 | Combined bearing with shaft |
| JP2010091038A (en) * | 2008-10-09 | 2010-04-22 | Nsk Ltd | Radial-thrust combination bearing |
| CN201884459U (en) * | 2010-02-04 | 2011-06-29 | 鲁国裕 | Radial and thrust combined rolling bearing |
| CN102777493A (en) * | 2011-05-10 | 2012-11-14 | 洛阳锐航钢球有限公司 | Novel combined bearing |
| CN202182149U (en) * | 2011-07-08 | 2012-04-04 | 南京高精船用设备有限公司 | Lower portion gear box input mechanism of ship propeller |
| CN203130792U (en) * | 2012-12-28 | 2013-08-14 | 瓦房店轴承集团有限责任公司 | Dual-axis-structure combined bearing |
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| CN103032459A (en) | 2013-04-10 |
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Effective date of registration: 20160901 Address after: 116300 Wafangdian City, Liaoning, North Street, a section of the city of St., No. 1, No. Patentee after: Wafangdian City Bearing Group Special Precision Bearing Co., Ltd. Address before: 116300 Wafangdian City, Liaoning, North Street, a section of the city of St., No. 1, No. Patentee before: Wafangdian Bearing Group Corp., Ltd. |