CN113685436A - High unitized joint bearing for aerospace and aviation - Google Patents

High unitized joint bearing for aerospace and aviation Download PDF

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Publication number
CN113685436A
CN113685436A CN202110968667.0A CN202110968667A CN113685436A CN 113685436 A CN113685436 A CN 113685436A CN 202110968667 A CN202110968667 A CN 202110968667A CN 113685436 A CN113685436 A CN 113685436A
Authority
CN
China
Prior art keywords
outer ring
ring
rocker arm
inner ring
plain bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110968667.0A
Other languages
Chinese (zh)
Inventor
张博威
徐英超
伍子晟
张同一
肖琦
黄晓春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerospace Precision Products Co Ltd
Original Assignee
Aerospace Precision Products Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aerospace Precision Products Co Ltd filed Critical Aerospace Precision Products Co Ltd
Priority to CN202110968667.0A priority Critical patent/CN113685436A/en
Publication of CN113685436A publication Critical patent/CN113685436A/en
Priority to PCT/CN2021/140821 priority patent/WO2023024362A1/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/02—Sliding-contact bearings
    • F16C23/04—Sliding-contact bearings self-adjusting
    • F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
    • 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
    • F16C33/72—Sealings
    • F16C33/74—Sealings of sliding-contact bearings
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
    • 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
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • 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
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/04—Connecting-rod bearings; Attachments thereof
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/43—Aeroplanes; Helicopters
    • 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
    • F16C2326/00—Articles relating to transporting
    • F16C2326/47—Cosmonautic vehicles, i.e. bearings adapted for use in outer-space

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention provides a highly unitized joint bearing for aerospace, which comprises an inner ring, an outer ring, a rocker arm and a gear, wherein a key groove is arranged in the inner ring, the outer ring is sleeved on the inner ring, the outer ring is rotatably connected with the inner ring, the rocker arm is fixedly connected with the outer ring or detachably connected with the outer ring, a connecting hole for connecting a shaft rod is arranged on the rocker arm, and the gear is coaxially fixedly connected with the outer ring or detachably connected with the outer ring. The joint bearing provided by the invention changes the single function of the traditional outer ring, integrates the rocker arm, the gear and the outer ring together, enriches the functions, reduces the number of parts, reduces the assembly difficulty, and has the advantages of diversified functions, light weight, small volume and space and no damage to the performance of the bearing compared with the traditional product.

Description

High unitized joint bearing for aerospace and aviation
Technical Field
The invention belongs to the field of aviation aircraft parts, and particularly relates to a highly unitized aerospace joint bearing.
Background
With the vigorous development of aerospace industry in China, the precision bearing for aerospace is used as a mechanical joint, and plays a role in lifting the weight. The method is widely applied to the field of execution systems, transmission and control systems of aircrafts.
Along with the increasing flying speed of the aircraft, the flexibility is higher and higher, the distance of deep space detection is longer and longer, the weight of the aircraft body is reduced, and the integration of multiple functions is more important. Lightweight and diversification have been the direction of effort in the field of flight. The bearing exists as a standard part in the traditional mechanical field, but the stricter requirements of the bearing in the aerospace field also make the inherent defects of the bearing become serious obstacles for limiting the development of the field. This also makes it difficult for conventional bearings to perform other functions of transmission (such as gear transmission and chain transmission) and stationary motion (such as stationary cyclic motion) while maintaining their inherent functions of support, rotation and friction reduction.
Disclosure of Invention
In view of this, the present invention is directed to provide a highly unitized joint bearing for aerospace, so that the bearing integrates more functions, the application scenario of the bearing is improved, reliable connection of aerospace is satisfied, and a designated action can be realized.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a highly unitized aerospace spherical plain bearing comprises an inner ring, wherein a key groove is arranged in the inner ring;
the outer ring is sleeved on the inner ring, and the outer ring is rotationally connected with the inner ring;
the rocker arm is fixedly connected with the outer ring or detachably connected with the outer ring, and a connecting hole for connecting the shaft rod is formed in the rocker arm;
and the gear is coaxially fixedly connected with the outer ring or detachably connected with the outer ring.
Further, a self-lubricating liner is arranged between the outer ring and the inner ring.
Furthermore, the inner wall of the outer ring is a concave spherical surface, and the outer wall of the inner ring is a corresponding convex spherical surface.
Further, the maximum rotation angle of the rocker arm around the shaft is less than 180 degrees.
Furthermore, the rocker arm comprises a ring sleeve part and a connecting part, the ring sleeve part is fixedly connected with the outer ring, the connecting hole is formed in the connecting part, and the opening direction of the connecting hole is parallel to that of the inner ring.
Further, the cross section of the ring sleeve part is approximately circular.
Further, the connecting part comprises two connecting plates which are symmetrically arranged, and a gap is reserved between the two connecting plates.
Furthermore, a dustproof assembly is arranged between the outer ring and the inner ring.
Compared with the prior art, the highly unitized aerospace joint bearing has the following advantages:
(1) the joint bearing provided by the invention changes the single function of the traditional outer ring, integrates the rocker arm, the gear and the outer ring together, enriches the functions, reduces the number of parts, reduces the assembly difficulty, has the advantages of diversified functions, light weight and small volume space compared with the traditional product, and does not damage the performance of the bearing;
(2) the joint bearing can realize the key groove connection of the bearing inner ring and the shaft, meets the requirement of reliable connection of the bearing inner ring, and does not cause unreliable connection due to the selection of the magnitude of interference of the bearing outer ring assembly;
(3) the joint bearing provided by the invention can realize the functions of a rocker arm and flange connection of the bearing through the structural change, meets the reliable connection of the outer ring of the bearing, and does not cause unreliable connection due to the selection of the magnitude of interference of the assembly of the outer ring of the bearing.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of a spherical plain bearing according to an embodiment of the present invention;
fig. 2 is a schematic structural view illustrating a joint bearing rotating around a shaft according to an embodiment of the present invention.
Description of reference numerals:
1. an outer ring; 2. an inner ring; 3. a self-lubricating liner; 4. a rocker arm; 5. a gear; 6. a loop portion; 7. a connecting plate; 8. and connecting the holes.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The highly unitized aerospace joint bearing comprises an inner ring 2, an outer ring 1, a rocker arm 4 and a gear 5, wherein a key groove is formed in the inner ring 2;
the outer ring 1 is sleeved on the inner ring 2, the outer ring 1 is rotationally connected with the inner ring 2, the inner wall of the outer ring 1 is a concave spherical surface, the outer wall of the inner ring 2 is a corresponding convex spherical surface, rolling parts such as balls and rollers can be filled between the outer ring 1 and the inner ring 2, lubricating oil can be injected between the outer ring 1 and the inner ring 2 for improving the rotational fluency, or a self-lubricating liner 3 is arranged between the outer ring 1 and the inner ring 2, and a dustproof assembly is arranged between the outer ring 1 and the inner ring 2, so that the dustproof effect of the joint bearing is improved;
the rocker arm 4 is fixedly connected or detachably connected with the outer ring 1, for example, the rocker arm 4 and the outer ring 1 can be fixed by welding, the outer ring 1 and the rocker arm 4 can be provided with corresponding threads and detachably connected by threads, the rocker arm 4 and the outer ring 1 can also be integrally cast, the rocker arm 4 is provided with a connecting hole 8 for connecting a shaft rod, the shaft rod passes through the connecting hole 8, nuts are connected by threads at two ends of the shaft rod, the connection of the rocker arm 4 and other components can be realized, at the moment, the rocker arm 4 can freely rotate around the shaft rod, and the maximum rotation angle is smaller than 180 degrees;
the rocker arm 4 in this embodiment includes a ring sleeve portion 6 and a connecting portion, the cross section of the ring sleeve portion 6 is approximately circular, an inner hole is formed in the middle of the ring sleeve portion 6, a key groove is formed in the inner hole, a connecting key corresponding to the key groove is arranged on the outer wall of the outer ring 1, the connecting key is inserted into the key groove to enable the ring sleeve portion 6 to be sleeved on the outer ring 1, the ring sleeve portion 6 and the outer ring 1 cannot rotate mutually, a mounting hole is formed in the outer ring 1 in a sleeved mode, a threaded hole is formed in the outer ring 1, a bolt penetrates through the mounting hole to be in threaded connection with the threaded hole, the ring sleeve portion 6 can be fixedly connected with the outer ring 1, the connecting hole 8 is formed in the connecting portion, the opening direction of the connecting hole 8 is parallel to the opening direction of the inner ring 2, the connecting portion includes two connecting plates 7 which are symmetrically arranged, a gap is reserved between the two connecting plates 7 and used for inserting other parts, and the connecting plates 7 are rotatably connected with other parts through a shaft rod.
Gear 5 and outer loop 1 coaxial rigid coupling or detachable connection, for example gear 5 and outer loop 1 can be for the welding, also can be for integrative casting shaping, can be equipped with the reference column on the outer loop 1, be equipped with the locating hole that corresponds with the reference column on gear 5, and the reference column inserts in the locating hole, and rethread nut threaded connection reference column makes gear 5 and outer loop 1 fixed connection.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The utility model provides a joint bearing for space flight and aviation of high unitized which characterized in that: the key groove is arranged in the inner ring;
the outer ring is sleeved on the inner ring, and the outer ring is rotationally connected with the inner ring;
the rocker arm is fixedly connected with the outer ring or detachably connected with the outer ring, and a connecting hole for connecting the shaft rod is formed in the rocker arm;
and the gear is coaxially fixedly connected with the outer ring or detachably connected with the outer ring.
2. The spherical plain bearing of claim 1, wherein: a self-lubricating liner is arranged between the outer ring and the inner ring.
3. The spherical plain bearing of claim 1, wherein: the inner wall of the outer ring is a concave spherical surface, and the outer wall of the inner ring is a corresponding convex spherical surface.
4. The spherical plain bearing of claim 1, wherein: the maximum rotation angle of the rocker arm around the shaft lever is less than 180 degrees.
5. The spherical plain bearing of claim 1, wherein: the rocker arm comprises a ring sleeve part and a connecting part, the ring sleeve part is fixedly connected with the outer ring, the connecting hole is formed in the connecting part, and the opening direction of the connecting hole is parallel to the opening direction of the inner ring.
6. The spherical plain bearing of claim 5, wherein: the cross section of the ring sleeve part is approximately circular.
7. The spherical plain bearing of claim 5, wherein: the connecting part comprises two connecting plates which are symmetrically arranged, and a gap is reserved between the two connecting plates.
8. The spherical plain bearing of claim 1, wherein: and a dustproof component is arranged between the outer ring and the inner ring.
CN202110968667.0A 2021-08-23 2021-08-23 High unitized joint bearing for aerospace and aviation Pending CN113685436A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110968667.0A CN113685436A (en) 2021-08-23 2021-08-23 High unitized joint bearing for aerospace and aviation
PCT/CN2021/140821 WO2023024362A1 (en) 2021-08-23 2021-12-23 Highly-unitized joint bearing for aerospace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110968667.0A CN113685436A (en) 2021-08-23 2021-08-23 High unitized joint bearing for aerospace and aviation

Publications (1)

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CN113685436A true CN113685436A (en) 2021-11-23

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CN (1) CN113685436A (en)
WO (1) WO2023024362A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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CN114810820A (en) * 2022-05-09 2022-07-29 西安鑫垚陶瓷复合材料有限公司 Integrated-structure special-shaped bearing based on ceramic matrix composite material and preparation method thereof
WO2023024362A1 (en) * 2021-08-23 2023-03-02 航天精工股份有限公司 Highly-unitized joint bearing for aerospace

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Publication number Priority date Publication date Assignee Title
WO2023024362A1 (en) * 2021-08-23 2023-03-02 航天精工股份有限公司 Highly-unitized joint bearing for aerospace
CN114810820A (en) * 2022-05-09 2022-07-29 西安鑫垚陶瓷复合材料有限公司 Integrated-structure special-shaped bearing based on ceramic matrix composite material and preparation method thereof
CN114810820B (en) * 2022-05-09 2024-03-08 西安鑫垚陶瓷复合材料股份有限公司 Special-shaped bearing with integrated structure based on ceramic matrix composite and preparation method thereof

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Application publication date: 20211123