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

Reducer of electric power steering apparatus

A technology of electric power steering and reducer, which is applied in the direction of mechanical steering gear, power steering mechanism, electric steering mechanism, etc., and can solve the problems of increasing the rotation resistance of the worm shaft, uncomfortable driver, blocking bearings, etc.

Inactive Publication Date: 2014-12-17
HL MANDO CORP
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, in the speed reducer of the conventional electric power steering device, tolerances in the assembled portion of the worm shaft and the electric motor shaft accumulate during the manufacture and assembly of the speed reducer, thereby clogging the bearing and increasing the rotational resistance of the worm shaft
Also, when worms and worm gears are run for long periods of time, there are spacing issues due to wear and rattling noise due to backlash
In addition, when the driver operates the steering wheel, the rattling noise generated by the impact force transmitted from the road through the wheels and steering shaft makes the driver feel uncomfortable

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
  • Reducer of electric power steering apparatus
  • Reducer of electric power steering apparatus
  • Reducer of electric power steering apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Hereinafter, exemplary embodiments of the present invention will be described with reference to the schematic drawings. In describing elements of the present invention, the terms "first", "second", "A", "B", "(a)", "(b)" and the like may be used. These terms are only used to distinguish one structural element from other structural elements, and the nature, order, sequence, etc. of the corresponding structural elements are not limited by these terms. Where it is described that certain structural elements are "connected to", "coupled to" or "in contact with" another structural element, it should be understood that the other element may also be "connected to", "Coupled to" or "in contact with" the structural element, and certain structural elements are directly connected to or in direct contact with another structural element.

[0024] image 3 is a sectional view illustrating a speed reducer of an electric power steering device according to an embodiment of the present ...

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

Discloses is a reducer of an electric power steering apparatus. The reducer of the electric power steering apparatus can reduce the rattling noise caused by an increase of backlash due to friction and abrasion of a worm and a worm wheel or by an impact transferred through a wheel and a steering shaft from the road and allowing a pivotal movement of a worm shaft, while decreasing a rotation resistance and blockage of a worm shaft and a worm shaft bearing to increase steering feel of a driver.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority from Korean Application No. 10-2013-0061022 filed with the Korean Patent Office on May 29, 2013, the entire contents of which are incorporated herein by reference. technical field [0003] The present application relates to a speed reducer for an electric power steering device, and more particularly, to a speed reducer for an electric power steering device capable of reducing the gap caused by the friction and wear of the worm and the worm wheel or by the wheel and the steering The rattling noise is caused by impact forces transmitted by the shaft from the road and causing the pivotal movement of the worm shaft, while reducing rotational resistance and blocking of the worm shaft and worm shaft bearings to improve steering feel for the driver. Background technique [0004] figure 1 is a view illustrating a conventional electric power steering device. like figure 1 As shown, the electri...

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): F16H57/021F16H57/028
CPCF16H57/12B62D3/04B62D5/0454F16H57/0006F16H57/039B62D5/0409F16H25/24F16H55/24F16H2057/0213Y10T74/19623B62D5/04F16H1/16
Inventor 金太植
Owner HL MANDO CORP
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