Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Eddy current type reduction gear

A reducer and eddy current technology, applied in the field of eddy current reducer, can solve problems such as sliding braking and magnetic flux leakage

Inactive Publication Date: 2006-06-21
ISUZU MOTORS LTD
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the magnetic force of the magnets 61, 62 is increased, a problem arises that part of the magnetic flux leaks to the brake rotor 53 during the braking stop, forming a flux leakage circuit and causing a slipping brake.

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
  • Eddy current type reduction gear
  • Eddy current type reduction gear
  • Eddy current type reduction gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] Preferred embodiments according to the present invention will be described below with reference to the accompanying drawings.

[0047] figure 1 is a side sectional view of the upper half of the eddy current type speed reducer according to the present invention. figure 2 is a partial front sectional view showing the state of the eddy current speed reducer during a braking stop. image 3 is a partial front sectional view showing the state of the eddy current reducer during brake activation.

[0048] Such as figure 1 As shown, the eddy current speed reducer 1 includes a drum-shaped brake rotor 3 mounted on a rotating shaft 2 such as a vehicle drive shaft, and a drum-shaped brake rotor 3 radially arranged on the inner side of the brake rotor 3 and installed in such as a transmission box, etc. Stator 4 (source of magnetic force) on the fixed side. The deceleration braking of the rotating shaft 2 is induced by supplying magnetic force from the stator 4 to the rotor 3 t...

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

An object of the present invention is to provide an eddy current type speed reducer capable of securing braking capability and preventing leakage of magnetic force. In a preferred embodiment of the present invention, the eddy current reducer (1) includes a first magnet ring ( 18), and the second magnet ring (7) that is arranged opposite to the first magnet ring (18) and includes a plurality of permanent magnets (10) spaced along the circumferential direction, wherein the second magnet ring (7 The magnetic force of each permanent magnet (10) of ) is set to be greater than the total of one or more permanent magnets (16) of the first magnet ring (18) used as a cooperating part of the magnetic circuit in the braking stop state magnetic force. As a result, the magnetic flux leakage to the brake rotor (3) during the braking stop can be almost zero.

Description

technical field [0001] The present invention relates to an eddy current type speed reducer mainly suitable for use as a secondary brake of a large vehicle. Background technique [0002] Eddy current speed reducers have been used as secondary brakes for large vehicles such as trucks. [0003] see below Figure 15 and Figure 16 An example of a conventional eddy current type speed reducer will be described. [0004] The eddy current speed reducer 51 includes a drum-shaped brake rotor 53 installed on a rotating shaft 52 such as a vehicle drive shaft, and a drum-shaped brake rotor 53 arranged radially inside the brake rotor 53 and mounted on a fixed side such as a transmission case. Stator 54 (magnetic force source). [0005] The stator 54 comprises a hollow housing 55 supported on the fixed side and two magnet rings 57 , 58 arranged inside the housing 55 . [0006] The first magnet ring 57 is fixed so that it cannot rotate relative to the housing 55, and the second magnet r...

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
IPC IPC(8): H02K49/10H02K49/02
Inventor 桑原彻小川诚
Owner ISUZU MOTORS LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com