CN109555786B - Anti-rotation positioning structure of oil receiving ring - Google Patents
Anti-rotation positioning structure of oil receiving ring Download PDFInfo
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- CN109555786B CN109555786B CN201811543792.1A CN201811543792A CN109555786B CN 109555786 B CN109555786 B CN 109555786B CN 201811543792 A CN201811543792 A CN 201811543792A CN 109555786 B CN109555786 B CN 109555786B
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- ring
- axle
- oil
- shaft
- cup
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N31/00—Means for collecting, retaining, or draining-off lubricant in or on machines or apparatus
- F16N31/02—Oil catchers; Oil wipers
Abstract
The application discloses receive oil ring anti-rotation location structure, it includes the bearing, the axle, take the receipts oil ring of labyrinth, the sealing washer, cup-shaped locking plate and nut, the bearing is installed in the outside of axle, receives the oil ring and installs in the inboard of axle and through the terminal surface axial positioning of axle, is equipped with spaced sealing washer between receipts oil ring and the axle, cup-shaped locking plate axial insertion receives the labyrinth one end of oil ring, and cup-shaped locking plate passes through the nut and the axle is fixed relatively in order to restrict the rotation of receiving the oil ring. The design purpose of preventing rotation and axial positioning of the oil receiving ring and the shaft in the circumferential direction is achieved, the structure of preventing rotation and positioning the end face in the axial direction is designed at the rear end of the shaft diameter position of the assembling bearing, the radial thickness of the shaft ring is not affected, the structure of the minimum shaft inner diameter of the sealing ring is not affected, and meanwhile, the shaft is matched with the inner thread and the nut, so that the cup-shaped locking plate is designed to prevent the oil receiving ring from moving in the axial direction and prevent rotation of the nut and the oil receiving ring, and after positioning is achieved, the fact that the sealing piece is collided and rubbed due to axial movement and radial deflection of the sealing structure.
Description
Technical Field
The application belongs to the technical field of aeroengines, and particularly relates to an anti-rotation positioning structure of an oil receiving ring.
Background
In the advanced aircraft engine, oil supply under a ring is required in many bearing oil supply modes, an oil collecting ring and a shaft structure are required to be arranged under a bearing ring of some supporting points, the structure of the oil collecting ring and the shaft for axial positioning and circumferential rotation prevention is limited by the structural size of the inner diameter of the shaft and the radial thickness of a shaft collar, and meanwhile, for the oil collecting ring of the integrated sealing structure, the positioning of the oil collecting ring also determines the structural performance design of a sealing gap and the like. At present, on the premise of ensuring the inner diameter and the radial thickness of a shaft, the anti-rotation positioning structure of the oil receiving ring and the shaft only can adopt an axial anti-rotation and axial limiting structure, and the oil receiving ring and the radial direction of the shaft are in clearance fit and positioned by two sealing rings.
As shown in figure 1, the bearing 11 is installed on the shaft 12, the oil receiving ring 13 and the shaft 12 adopt an axial anti-rotation and axial limiting structure, the oil receiving ring 3 is limited in the axial direction through the nut 5 with the flange 6, and the circumferential anti-rotation of the oil receiving ring 3 and the shaft 2 is realized through a staggered tooth structure. The radial fit clearance between the oil collecting ring 13 and the shaft 12, the distance between the two seals 14 and the distance between the grid tooth 17 and the right side seal ring 14 jointly determine the deflection amount of the grid tooth 17 in the radial direction, and when the distance between the grid tooth 17 and the right side seal ring 14 is larger, the deflection amount of the grid tooth 17 in the radial direction is also larger.
Because the oil collecting ring is integrated with a sealing structure, if a size chain is controlled unreasonably during assembly and operation, the oil collecting ring is sealed and interfered with a runway, and the serious sealing of the labyrinth can cause the phenomena that the labyrinth collides with the runway matrix to cause sparks, even a bearing cavity is ignited and the like.
Disclosure of Invention
The application aims to provide an anti-rotation positioning structure of an oil collecting ring, so as to solve any one of the problems.
The technical scheme of the application is as follows: the utility model provides a receive oil ring anti-rotation location structure, its includes bearing, axle, take oil ring, sealing washer, cup-shaped locking plate and the nut of labyrinth, and the bearing is installed in the outside of axle, receives the oil ring and installs in the inboard of axle and through the terminal surface axial positioning of axle, receives and is equipped with spaced sealing washer between oil ring and the axle, and cup-shaped locking plate axial inserts the labyrinth one end of receiving the oil ring, and cup-shaped locking plate passes through the nut and the relative fixed rotation in order to restrict oil ring with the axle.
The utility model provides an oil ring prevents changeing location structure under axle internal diameter and the restriction of axle ring radial thickness structure, realized receiving the oil ring and the design purpose that axle circumference was prevented changeing and axial positioning, the structure of preventing changeing and location terminal surface in the axial has been designed at assembly bearing axle diameter position rear end, no influence to the axle ring radial thickness, do not influence the structure of the minimum axle internal diameter of sealing ring yet, the internal thread is used with the nut cooperation to the axle simultaneously, make cup-shaped locking plate realize receiving the oil ring axial and not leap up the change, the nut prevents changeing with receiving the oil ring design, realize the location back, avoided receiving the sealing member that oil ring seal structure axial leap up and move and radial deflection caused and bump and rub.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
FIG. 1 is a schematic view of an anti-rotation positioning structure of an oil-receiving ring in the prior art.
Fig. 2 is a schematic view of an anti-rotation positioning structure of the oil receiving ring.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
As shown in fig. 2, which is a cross-sectional view of the anti-rotation positioning structure of the oil receiving ring of the present application, the anti-rotation positioning structure of the oil receiving ring of the present application includes a bearing 21, a shaft 22, an oil receiving ring 23 (with a labyrinth 28), a seal ring 24, a cup-shaped locking plate 25, and a nut 26. The bearing 21 is arranged on the outer side of the shaft 22, the oil collecting ring 23 is arranged on the inner side of the shaft 22 and is axially positioned through an end face 27 of the shaft 22, a sealing ring 24 with intervals is arranged between the oil collecting ring 23 and the shaft 22, the cup-shaped locking plate 25 is axially inserted into one end of a comb tooth 28 of the oil collecting ring 23, and the cup-shaped locking plate 25 is relatively fixed with the shaft 22 through a nut 26 so as to limit the rotation of the oil collecting ring 23.
The positioning and rotation-proof structures of the shaft 22 and the oil receiving ring 23 are arranged at the matching area of the shaft 22 and the bearing 21 and the rear end of the sealing ring 24.
The utility model provides a receive oil ring rotational positioning structure, adopted the wrong tooth structure of axle 22 with nut 26, screw thread and cup type locking plate combination location form, axle 22 and receive oil ring 23 through axial wrong tooth structure, when realizing that circumference prevents changeing, terminal surface 27 after the assembly will receive oil ring 23 one end axial positioning, receive the oil ring 23 other end by cup-shaped rand 25, nut 26 axial positioning. The oil-receiving ring 23 and the nut 26 are prevented from rotating by the cup-shaped locking piece 25.
The oil receiving ring anti-rotation positioning structure is suitable for the axial anti-rotation axial positioning structure design between a rotating body and a rotating component under a limited structure, and the limit limiting size which can be solved is h1\ h 2.
The utility model provides an oil ring prevents changeing location structure under axle internal diameter and the restriction of axle ring radial thickness structure, realized receiving the oil ring and the design purpose that axle circumference was prevented changeing and axial positioning, the structure of preventing changeing and location terminal surface in the axial has been designed at assembly bearing axle diameter position rear end, no influence to the axle ring radial thickness, do not influence the structure of the minimum axle internal diameter of sealing ring yet, the internal thread is used with the nut cooperation to the axle simultaneously, make cup-shaped locking plate realize receiving the oil ring axial and not leap up the change, the nut prevents changeing with receiving the oil ring design, realize the location back, avoided receiving the sealing member that oil ring seal structure axial leap up and move and radial deflection caused and bump and rub.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (1)
1. The utility model provides an oil receiving ring prevents changeing location structure, a serial communication port, including bearing (21), axle (22), take oil receiving ring (23) of labyrinth (28), sealing washer (24), cup-shaped locking plate (25) and nut (26), bearing (21) are installed in the outside of axle (22), oil receiving ring (23) are installed in the inboard of axle (22) and through the terminal surface (27) axial positioning of axle (22), be equipped with spaced sealing washer (24) between oil receiving ring (23) and axle (22), cup-shaped locking plate (25) axial insertion oil receiving ring's (23) labyrinth (28) one end, and cup-shaped locking plate (25) are fixed relatively with axle (22) through nut (26) in order to restrict the rotation of oil receiving ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543792.1A CN109555786B (en) | 2018-12-17 | 2018-12-17 | Anti-rotation positioning structure of oil receiving ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543792.1A CN109555786B (en) | 2018-12-17 | 2018-12-17 | Anti-rotation positioning structure of oil receiving ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109555786A CN109555786A (en) | 2019-04-02 |
| CN109555786B true CN109555786B (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543792.1A Active CN109555786B (en) | 2018-12-17 | 2018-12-17 | Anti-rotation positioning structure of oil receiving ring |
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| Country | Link |
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| CN (1) | CN109555786B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201953484U (en) * | 2010-12-23 | 2011-08-31 | 中国航空工业集团公司沈阳发动机设计研究所 | Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure |
| CN203050804U (en) * | 2012-12-27 | 2013-07-10 | 中国燃气涡轮研究院 | Comb gear ring structure capable of being fast buckled |
| WO2015022373A1 (en) * | 2013-08-14 | 2015-02-19 | Aktiebolaget Skf | Bearing arrangement |
| CN204900542U (en) * | 2015-06-04 | 2015-12-23 | 中航商用航空发动机有限责任公司 | Oil ring is radially received to main shaft bearing and impeller formula for aviation |
| CN206581990U (en) * | 2016-12-30 | 2017-10-24 | 中国航发商用航空发动机有限责任公司 | The system of obturaging of prewhirling of aero-engine |
| CN108167336A (en) * | 2017-12-27 | 2018-06-15 | 中国航发哈尔滨轴承有限公司 | One kind is for Aero-engine Bearing and receives oil ring connection structure |
-
2018
- 2018-12-17 CN CN201811543792.1A patent/CN109555786B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201953484U (en) * | 2010-12-23 | 2011-08-31 | 中国航空工业集团公司沈阳发动机设计研究所 | Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure |
| CN203050804U (en) * | 2012-12-27 | 2013-07-10 | 中国燃气涡轮研究院 | Comb gear ring structure capable of being fast buckled |
| WO2015022373A1 (en) * | 2013-08-14 | 2015-02-19 | Aktiebolaget Skf | Bearing arrangement |
| CN204900542U (en) * | 2015-06-04 | 2015-12-23 | 中航商用航空发动机有限责任公司 | Oil ring is radially received to main shaft bearing and impeller formula for aviation |
| CN206581990U (en) * | 2016-12-30 | 2017-10-24 | 中国航发商用航空发动机有限责任公司 | The system of obturaging of prewhirling of aero-engine |
| CN108167336A (en) * | 2017-12-27 | 2018-06-15 | 中国航发哈尔滨轴承有限公司 | One kind is for Aero-engine Bearing and receives oil ring connection structure |
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| Publication number | Publication date |
|---|---|
| CN109555786A (en) | 2019-04-02 |
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