Flexible damping bearing bush

A bearing bushing and bushing technology, applied in the direction of bearing components, shafts and bearings, springs/shock absorbers, etc., can solve problems such as failure, fatigue fracture and vibration reduction performance, and affect the normal operation of bearings, so as to protect machinery and reduce Amplitude, the effect of excellent vibration damping effect

Active Publication Date: 2020-05-01
中国航发贵阳发动机设计研究所
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional vibration reduction measure is to add a bush made of flexible material on the inside or outside of the bearing. This design has poor fatigue resistance in harsh application scenarios, such as long-term high-speed operation. Long-term use may be caused by the material Aging or fatigue fracture causes the vibration damping performance to fail, and even affects the normal operation of the entire bearing

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible damping bearing bush
  • Flexible damping bearing bush
  • Flexible damping bearing bush

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] According to the principle that when the hydraulic oil passes through the damping hole at a very high speed, it can absorb a large amount of impact mechanical energy, convert the mechanical energy into heat energy, and quickly restore the rotating shaft to the normal operating state, and designs a flexible damping bearing bushing , the structure diagram of the bushing is shown in Figure 1-3 as shown in figure 1 as shown,

[0013] There is an annular hydraulic oil chamber inside the outer ring of the bushing, and several piston chambers are evenly distributed along the circumference of the bushing body. The damping hole is the connection channel between the piston chamber and the hydraulic oil in the annular hydraulic oil chamber. When flowing through the orifice at high speed, it consumes and absorbs a large amount of mechanical energy. The bush outer ring and the bush main body can be integrally formed or connected as a whole through other mechanical seals. The ent...

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

No PUM Login to view more

Abstract

The invention belongs to the application field of rotating machinery and particularly relates to a flexible damping bearing bush which is composed of a bush outer ring, a bush inner ring, a bush mainbody, a damping piston and a sealing ring, wherein an annular hydraulic oil cavity is formed in the bush outer ring; a plurality of piston cavities are uniformly distributed in the bush main body in the circumferential direction; the piston cavities communicate with the annular hydraulic oil cavity through damping holes formed in the bush main body; the damping piston is mounted in the piston cavities uniformly formed in the circumferential direction; the root part of the damping spring is fixedly connected with the bush inner ring and does reciprocating motion in the piston cavities to extrude or absorb hydraulic oil; the sealing ring is arranged between the damping piston and the piston cavities and is mounted in a sealing ring mounting groove at the upper section of the damping piston;the bush outer ring, the bush main body and the bush inner ring are sequentially and concentrically stacked; and a damping device is further arranged between the bush main body and the bush inner ring.

Description

technical field [0001] The invention belongs to the application field of rotating machinery, and in particular relates to a flexible damping bearing bush, which can reduce the mechanical vibration produced during the operation of the rotating machinery. Background technique [0002] The rotating shaft supported on the bearing is often operated in an unexpected high-amplitude state when it is disturbed by the outside world, passes through the critical speed zone or self-excited vibration and other abnormal operating conditions, causing severe vibration of the machine. The conventional vibration reduction measure is to add a bush made of flexible material on the inside or outside of the bearing. This design has poor fatigue resistance in harsh application scenarios, such as long-term high-speed operation. Long-term use may be caused by the material Aging or fatigue fractures cause the vibration damping performance to fail, and even affect the normal operation of the entire bea...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/04F16F15/023
CPCF16C33/04F16F15/023
Inventor 袁鑫田俊许柯张鹏丁光耀郭立全薛慧聪
Owner 中国航发贵阳发动机设计研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap