CN203130792U - Dual-axis-structure combined bearing - Google Patents
Dual-axis-structure combined bearing Download PDFInfo
- Publication number
- CN203130792U CN203130792U CN 201220737873 CN201220737873U CN203130792U CN 203130792 U CN203130792 U CN 203130792U CN 201220737873 CN201220737873 CN 201220737873 CN 201220737873 U CN201220737873 U CN 201220737873U CN 203130792 U CN203130792 U CN 203130792U
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- inner ring
- steel ball
- bearing
- axle center
- ring
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Abstract
The utility model belongs to the field of bearing manufacturing and particularly relates to a dual-axis-structure combined bearing which is applied to the field of aviation accessories. The bearing consists of a first outer ring, a first inner ring, a second outer ring, a second inner ring, a retaining ring, a screw, a clearance adjustment pad, steel balls, a first column of steel balls, a second column of steel balls and a retaining rack. According to the dual-axis-structure combined bearing, a dual-axis combined structure is adopted and consists of an angular-contact ball bearing and a thrust angular-contact ball bearing, wherein the angular-contact ball bearing rotates around a first axis, the thrust ball bearing is guided to rotate around a second axis by the steel balls, and then, the dual-axis structure is formed, so that the requirements of supporting members of aviation and the like for light weight, integration and high precision can be met due to the structure; and the dual-axis-structure combined bearing has the advantages of light weight, high precision, long service life, small occupied space and the like.
Description
Technical field
The utility model belongs to bearing and makes the field, relates to a kind of combination bearing of twin shaft heart composite structure concretely, is applicable to the use of aviation accessory field.
Background technique
Aviation industry is the high-end industry that drives all sectors of the national economy high speed development, and it is also representing the development in science and technology level of a country.What especially future war compared with is the ability competition of control of the air, the command of the sea.Therefore, the development of various novel aircrafts and air equipment has become world today various countries and has dropped into the project that a large amount of human and material resources, financial resources fall over each other to develop.Thereupon, be the demands for higher performance of each supporting component of aircraft and air equipment.Bearing plays important effect as the support unit at its rotation position 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 existing bearing still can not satisfy above-mentioned requirements at present, has complex structure more, number of spare parts is many, weight is big and the life-span than defectives such as weak points.
The model utility content
In view of the defective that prior art exists, the purpose of this utility model is the combination bearing that a kind of twin shaft heart composite structure will be provided, and satisfies the aviation field support unit for bearing lightweight, integrated, user demand that highi degree of accuracy is high.
To achieve these goals, the technological scheme that the utility model adopts is a kind of twin shaft core structure bearing, it is characterized in that: this bearing is made up of first outer ring, first inner ring, second outer ring, second inner ring, back-up ring, screw, play spacer, steel ball, the first row steel ball, secondary series steel ball, retainer, and described first inner ring is made of top, bottom and supporting part; Described retainer is installed between first outer ring and the first inner ring bottom, and steel ball is installed in the pocket hole of retainer and with first outer ring raceway, the first inner ring bottom raceway and contacts, and forms the clutch shaft bearing structure, and the axle center of this part is first axle center; Described secondary series steel ball contacts with first inner ring raceway, the second inner ring supporting part raceway; The described first row steel ball contacts with second outer ring raceway, second inner ring raceway, the first inner ring top end face is provided with screw hole, the internal diameter of the external diameter on the first inner ring top and second inner ring cooperatively interacts, and forms second bearing structure, and the axle center of this structure is second axle center; Described first inner ring and second inner ring outside are provided with back-up ring, and back-up ring cooperates with screw hole by screw, is fixed on first inner ring, and the play spacer is arranged between back-up ring and the screw; Described first axle center and second axle center have certain angle.
Described clutch shaft bearing structure is the angular contact ball bearing structure, and second bearing structure is steel ball guiding thrust ball bearing structure.
The steel ball of described clutch shaft bearing structure is the biserial steel ball, is respectively the 3rd row steel ball, the 4th row steel ball.
The first row steel ball of described second bearing structure, secondary series steel ball all adopt full complement.
Described clutch shaft bearing structure is rotated around first axle center, and second bearing structure rotates around second axle center, constitutes the twin shaft core structure.
Described screw hole direction is consistent with second axis direction.
The angle that described first axle center and second axle center constitute is acute angle.
Described retainer material is PEEK 450.
The utility model excellent effect: the utility model adopts twin shaft heart composite structure, formed by angular contact ball bearing and angular contact thrust ball bearing, the angular contact ball bearing part is rotated around first axle center, steel ball guiding thrust ball bearing part is rotated around second axle center, constitute the twin shaft core structure, such structure can satisfy support units such as aviation for lightweight, integrated, user demand that highi degree of accuracy is high, has that quality is light, precision is high, long service life, and advantage such as occupy little space.
Description of drawings
Fig. 1 is structural profile sketch of the present utility model;
Fig. 2 is plan structure schematic representation of the present utility model.
Among the figure, 1, first outer ring, 2, first inner ring, 3, second outer ring, 4, second inner ring, 5, back-up ring, 6, screw, 7, the play spacer, 8, the first row steel ball, 9, the secondary series steel ball, 10, the 3rd row steel ball, the 11, the 4th row steel ball, 12, retainer, A, first axle center, B, second axle center.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing.
A kind of twin shaft core structure bearing, as shown in Figure 1 and Figure 2, it is characterized in that: twin shaft heart combination bearing, it is characterized in that: this bearing is made up of first outer ring 1, first inner ring 2, second outer ring 3, second inner ring 4, back-up ring 5, screw 6, play spacer 7, steel ball, the first row steel ball 8, secondary series steel ball 9, retainer 12, and described first inner ring 2 is made of top, bottom and supporting part; Described retainer 12 is installed between first outer ring 1 and first inner ring, 2 bottoms, steel ball is installed in the pocket hole of retainer 12 and with first outer ring, 1 raceway, first inner ring, 2 bottom raceways and contacts, form the clutch shaft bearing structure, the axle center of this part is the first axle center A; Described secondary series steel ball 9 contacts with first inner ring, 2 raceways, the second inner ring 4 supporting part raceways; The described first row steel ball 8 contacts with second outer ring, 2 raceways, second inner ring, 4 raceways, first inner ring, 2 top end faces are provided with screw hole, the external diameter on first inner ring, 2 tops and the internal diameter of second inner ring 4 cooperatively interact, and form second bearing structure, and the axle center of this structure is the second axle center B; Described first inner ring 2 and second inner ring, 4 outsides are provided with back-up ring 5, and back-up ring 5 cooperates with screw hole by screw 6, is fixed on first inner ring 2, and play spacer 7 is arranged between back-up ring 5 and the screw 6; The described first axle center A and the second axle center B have certain angle.
Described clutch shaft bearing structure is the angular contact ball bearing structure, and second bearing structure is steel ball guiding thrust ball bearing structure.
The steel ball of described clutch shaft bearing structure is the biserial steel ball, is respectively the 3rd row steel ball 10, the 4th row steel ball 11.
The first row steel ball 8 of described second bearing structure, secondary series steel ball 9 all adopt full complement.
Described clutch shaft bearing structure is rotated around the first axle center A, and second bearing structure rotates around the second axle center B, constitutes the twin shaft core structure.
Described screw hole direction is consistent with the second axle center B direction.
The angle of the 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 rotated at a high speed around the first axle center A, and first inner ring 2 plays the effect of compound Internal and external cycle, and it had both played the inner ring effect of angular contact ball bearing structure, plays the compound outer ring effect of angular contact thrust ball bearing structure again; 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 the compound inner ring effect of angular contact ball bearing linkage structure, when this angular contact thrust ball bearing structure is rotated at a high speed around the second axle center B, do oscillating motion with respect to the first axle center A again.
Claims (8)
1. twin shaft core structure combination bearing, it is characterized in that: this bearing is made up of first outer ring, first inner ring, second outer ring, second inner ring, back-up ring, screw, play spacer, steel ball, the first row steel ball, secondary series steel ball, retainer, and described first inner ring is made of top, bottom and supporting part; Described retainer is installed between first outer ring and the first inner ring bottom, and steel ball is installed in the pocket hole of retainer and with first outer ring raceway, the first inner ring bottom raceway and contacts, and forms the clutch shaft bearing structure, and the axle center of this part is first axle center; Described secondary series steel ball contacts with first inner ring raceway, the second inner ring supporting part raceway; The described first row steel ball contacts with second outer ring raceway, second inner ring raceway, the first inner ring top end face is provided with screw hole, the internal diameter of the external diameter on the first inner ring top and second inner ring cooperatively interacts, and forms second bearing structure, and the axle center of this structure is second axle center; Described first inner ring and second inner ring outside are provided with back-up ring, and back-up ring cooperates with screw hole by screw, is fixed on first inner ring, and the play spacer is arranged between back-up ring and the screw; Described first axle center and second axle center have certain angle.
2. a kind of twin shaft core structure combination bearing according to claim 1, it is characterized in that: described clutch shaft bearing structure is the angular contact ball bearing structure, second bearing structure is steel ball guiding thrust ball bearing structure.
3. a kind of twin shaft core structure combination bearing according to claim 1, it is characterized in that: the steel ball of described clutch shaft bearing structure is the biserial steel ball, is respectively the 3rd row steel ball, the 4th row steel ball.
4. a kind of twin shaft core structure combination bearing according to claim 1, it is characterized in that: the first row steel ball of described second bearing structure, secondary series steel ball all adopt full complement.
5. a kind of twin shaft core structure combination bearing according to claim 1, it is characterized in that: described clutch shaft bearing structure is rotated around first axle center, and second bearing structure rotates around second axle center, constitutes the twin shaft core structure.
6. a kind of twin shaft core structure combination bearing according to claim 1, it is characterized in that: described screw hole direction is consistent with second axis direction.
7. a kind of twin shaft core structure combination bearing according to claim 1 is characterized in that: the angle that described first axle center and second axle center constitute is acute angle.
8. a kind of twin shaft core structure combination bearing according to claim 1, it is characterized in that: described retainer material is PEEK 450.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737873 CN203130792U (en) | 2012-12-28 | 2012-12-28 | Dual-axis-structure combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737873 CN203130792U (en) | 2012-12-28 | 2012-12-28 | Dual-axis-structure combined bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130792U true CN203130792U (en) | 2013-08-14 |
Family
ID=48938772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737873 Withdrawn - After Issue CN203130792U (en) | 2012-12-28 | 2012-12-28 | Dual-axis-structure combined bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032459A (en) * | 2012-12-28 | 2013-04-10 | 瓦房店轴承集团有限责任公司 | Combination bearing provided with double-axis structure |
-
2012
- 2012-12-28 CN CN 201220737873 patent/CN203130792U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032459A (en) * | 2012-12-28 | 2013-04-10 | 瓦房店轴承集团有限责任公司 | Combination bearing provided with double-axis structure |
| CN103032459B (en) * | 2012-12-28 | 2015-06-17 | 瓦房店轴承集团有限责任公司 | Combination bearing provided with double-axis structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |