Unlock instant, AI-driven research and patent intelligence for your innovation.

Rolling Bearing For Blade Root, Oscillating System, And Rotating System

A technology for rolling bearings and blade roots, applied in rolling contact bearings, ball and roller bearings, bearings for rotary motion, etc., can solve problems such as wrong preload, incorrect installation, large packaging, etc.

Active Publication Date: 2017-06-20
恩特恩斯恩尔轴承公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Document GB 2251896 describes an example of a rolling bearing that has a complex structure assembled with many components, which can cause problems in achieving effective sealing
Additionally, this product has a large package and must be assembled directly onto the shaft by the end user
Numerous risks exist during end-user assembly, among which can be incorrect mounting, including the risk of incorrectly applying preload, leading to premature failure of these bearings

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
  • Rolling Bearing For Blade Root, Oscillating System, And Rotating System
  • Rolling Bearing For Blade Root, Oscillating System, And Rotating System
  • Rolling Bearing For Blade Root, Oscillating System, And Rotating System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] figure 1 A schematic three-dimensional perspective view of an example of a rotating system rotor according to an embodiment of the present invention is schematically shown. The rotary system 1 comprises a hub (not shown) with an axis A at which a rotor 2 is rotatably mounted. The rotor 2 rotates about the axis A relative to the hub. The rotor 2 comprises a main body 3 , for example rotationally symmetrical about an axis A. As shown in FIG. The rotor 2 also comprises one or more blades 4 (in this example three blades 4 ), each extending radially with respect to the hub. Each blade 4 extends along a longitudinal axis B. As shown in FIG. Since the blade may have a very complex shape, it is difficult to define exactly the longitudinal axis B unless it corresponds to the main direction of the blade 4 . Also, when the blades are described as extending "radially", it does necessarily mean that the axis B intersects the axis A or extends in a plane perpendicular to the axis...

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

A blade root extends in a longitudinal direction between a proximal end and a distal end. The rolling bearing allows oscillation of the root about an axis extending in the longitudinal direction relative to a housing. The rolling bearing includes a single outer ring, a first inner ring providing a distal seat, a second inner ring fitted onto the seat and held in axial abutment against the first inner ring. The inner surface of the first inner ring includes a shoulder for assembly to a blade root. The outer surface of the single outer ring includes a shoulder for assembly to a housing.

Description

technical field [0001] The invention relates to the field of rolling bearings for blade roots. [0002] More particularly, the invention relates to the field of blades with variable angles in the rotating housing of aircraft propellers, or other applications. Background technique [0003] Document GB 2251896 describes an example of a rolling bearing having a complex structure assembled with many components, which can lead to problems in achieving effective sealing. Additionally, this product has a large package and must be assembled directly onto the shaft by the end user. There are numerous risks at end-user assembly, among which can be incorrect installation, including the danger of incorrectly applying preload, leading to premature failure of these bearings. [0004] Document FR 2862609 describes an example of this type of product in which the blade is fitted by one of its ends, called the blade root, in a casing (called "hub" in the given document). The root is mounte...

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): F16C19/49B64C11/16
CPCB64C11/16F16C19/49F16C2326/43F16C19/186F16C19/386F16C25/06F16C33/60F16C2240/40B64C11/06F16C23/06B64C11/04F16C19/497F16C2240/30F16C35/063F16C35/067B64C11/325F04D29/059F04D29/362F04D29/38
Inventor 古伊劳姆·莱福特
Owner 恩特恩斯恩尔轴承公司