Rotary joint pin applied to spacecraft mechanism and preparation method thereof
A technology for rotating joints and spacecraft, applied in the field of material surface engineering, can solve the problems of loss of lubrication effect and poor temperature adaptability, and achieve the effect of good lubrication effect, high adaptability and solving the problem of idle travel.
Active Publication Date: 2022-07-15
CHINA UNIV OF GEOSCIENCES (BEIJING) +2
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, MoS 2 The temperature adaptability is not strong, and it starts to oxidize when heated in the air at 315°C. As the temperature increases, the oxidation reaction accelerates and oxidizes to MoO 3 loss of lubrication
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0037] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0038] Unless expressly stated otherwise, throughout the specification and claims, the term "comprising" or its conjugations such as "comprising" or "comprising" and the like will be understood to include the stated elements or components, and Other elements or other components are not excluded.
[0039] In one embodiment of the present invention, as figure 1 and figure 2 As shown, 1 is a U-shaped joint, 2 is a pin, 3 is a tongue, and 4 is a sealing ring. Insert pin 2 into the hole of U-shaped joint 1, place O-shaped rubber sealing rings 4 on both ends of pin 2, and then connect pin 2 and U-shaped joint 1, which is the connection between the rotating joint pin and the U-shaped joint. Matching structure.
[0040] The...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
| height | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a rotary joint pin applied to a spacecraft mechanism and a preparation method thereof. The rotary joint pin comprises a pin body, and a solid lubricating film is attached to the surface of the pin body, and the solid lubricating film From the inside to the outside, it includes a transition layer and a surface layer; part of the solid lubricating film also includes a graphene layer located outside the surface layer; the transition layer is a Ti metal layer; the surface layer is Ti, Pb and MoS 2 The composite layer is composed; the area of the solid lubricating film covered by the graphene layer is greater than 90%. The rotating joint pin of the present invention can reduce the sliding friction force and improve the motion accuracy through the solid lubricating film on the surface of the rotating joint pin body; and can slow down the MoS 2 It can adapt to a wide temperature range with alternating temperature; after graphene is rubbed and worn to produce fine abrasive particles, the friction form changes from sliding friction to rotational friction, which is more beneficial to lubrication.
Description
technical field [0001] The invention relates to the technical field of material surface engineering, in particular to a rotary joint pin applied to a spacecraft mechanism and a preparation method thereof. Background technique [0002] With the development of the aerospace field, spacecraft operating in the sky need to have long-term endurance and high maneuverability, reduce the energy consumption of friction, and require a lower friction coefficient. The processing technology of the rotary joint is simple, the use is convenient, and the reliability is high, and it is the most widely used in the structure of spacecraft. Conventional rotary joint U-shaped joints and pins, pins and tangs are all clearance fit. Due to the existence of joint gaps, rotary joints exhibit nonlinearities including idle travel and hysteresis under the cyclic action of tension and pressure. The force-displacement characteristic of , not only brings many uncertainties to the motion of the spacecraft m...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/35C23C14/02C23C14/16C23C14/50C23C14/54C23C26/00F16C11/04
CPCC23C14/35C23C14/165C23C14/022C23C14/028C23C14/352C23C14/505C23C14/54C23C26/00C23C14/025F16C11/04
Inventor 朱丽娜刘梅康嘉杰岳文佘丁顺田斌付志强孟德忠王成彪
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)