Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Self-sensing conical roller bearing for wind driven generator

A technology for tapered roller bearings and wind turbines, applied in the directions of roller bearings, bearing components, shafts and bearings, etc., can solve the problem of difficulty in obtaining the running status of bearings in a timely and accurate manner, and improve reliability and power generation. The effect of strong power supply capacity and novel structure

Inactive Publication Date: 2014-08-13
ZHEJIANG NORMAL UNIVERSITY
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a self-sensing tapered roller bearing for wind power generators to solve the problem that the existing bearing monitoring system is still non-real-time and indirect non-contact measurement in practical applications, and it is difficult to obtain the operation of the bearing in a timely and accurate manner. status problem

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
  • Self-sensing conical roller bearing for wind driven generator
  • Self-sensing conical roller bearing for wind driven generator
  • Self-sensing conical roller bearing for wind driven generator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Such as Figure 1 to Figure 6 As shown, it includes an inner ring 1, a cone 2, a cage 3, and an outer ring 4. The right end of the inner ring 1 is provided with a stepped shaft 11, and the left end of the outer ring 4 is provided with a stepped hole 41. The inner ring 1 The left end and the right end of the outer ring 4 are respectively inlaid with a group of excitation magnets C2, and the stepped shaft 11 of the inner ring 1 and the stepped hole 41 of the outer ring 4 are respectively installed with a right disk 5 and a left disk 5' through interference fit, The right disc 5 is provided with a right step ring groove 51 and a right guide hole 52, and the left disc 5' is provided with a left step ring groove 51' and a left guide hole 52', and the right disc 5 and the left disc 5 The right pressing plate 6 and the left pressing plate 6' are respectively installed on the ' by screws, and the right pressing plate 6 and the left pressing plate 6' are respectively provided wi...

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 relates to a self-sensing conical roller bearing for a wind driven generator, and belongs to the technical field of bearings and monitoring thereof. Excitation magnets are embedded into the left end of an inner ring and the right end of an outer ring; a right disk and a left disk are respectively arranged on a stepped shaft of the inner ring and in a stepped hole in the outer ring; a stepped ring slot and a guide hole are formed in the right disk and the left disk; a right pressing plate and a left pressing plate are respectively arranged on the right disk and the left disk; limiting surfaces are arranged on the pressing plates; piezoelectric vibrators are pressed between the left and right disks and the pressing plates; metal substrates on the piezoelectric vibrators are in contact with arc limiting surfaces; excited magnets are arranged at the free ends of the piezoelectric vibrators and are arranged in the guide hole; a circuit board and a sensor are mounted in a ladder ring slot. The self-sensing conical roller bearing has the advantages that an automatic power supplying, sensing and monitoring function is realized; the structure of mounting equipment is not required to be changed; true real-time and on-line monitoring is realized; configuration parameters of the structures of the piezoelectric vibrators and the excitation magnets are reasonably determined, so that the power supply and generation capacity is high; due to the guide hole and the limiting measure, the reliability is high.

Description

technical field [0001] The invention belongs to the technical field of bearings and monitoring thereof, and in particular relates to a self-sensing tapered roller bearing for wind power generators. Background technique [0002] Bearing is a typical mechanical basic part, which is widely used in the fields of machinery, vehicles, aerospace, ships and energy; however, bearing is also one of the most vulnerable parts in rotating machines, and 30% of rotating machinery failures % is caused by bearing failure. Therefore, the state monitoring and early fault diagnosis of bearings have attracted people's attention. On-line monitoring of bearing status has gradually become an indispensable technology in the fields of large generators, ships, high-speed rail, and aircraft. The indicators to be monitored include temperature, vibration, speed, and noise. Early bearing monitoring systems were mainly plug-in. One of the disadvantages was that the distance between the sensor and the sig...

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): F16C19/36F16C33/30F16C33/58
Inventor 阚君武李胜杰王淑云曾平程光明
Owner ZHEJIANG NORMAL UNIVERSITY
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
Eureka Blog
Learn More
PatSnap group products