Variable gear ratio steering apparatus for an automobile

A technology of steering equipment and transmission ratio, which is applied in the direction of power steering mechanism, equipment with rotatable camera, steering mechanism, etc. It can solve the backlash between sun gear and planetary gear, reduce the backlash of planetary gear and ring gear, and cannot apply planetary gear. gear system etc.

Active Publication Date: 2007-08-01
HL MANDO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, there is a problem with these existing methods: they cannot be applied to planetary gear systems
[0010] In short, according to the prior art, it is impossible to reduce the backlash between the sun gear and the planetary gear, and reduce the backlash between the planetary gear and the ring gear

Method used

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  • Variable gear ratio steering apparatus for an automobile
  • Variable gear ratio steering apparatus for an automobile
  • Variable gear ratio steering apparatus for an automobile

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Embodiment Construction

[0022] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In the following description and drawings, the same numerals are used to refer to the same or similar components, and repeated descriptions of the same or similar components are omitted.

[0023] The perspective view in Fig. 2 shows a planetary gear system according to a first embodiment of the present invention.

[0024] As shown in Figure 2, the planetary gear system according to the first embodiment of the present invention includes a sun gear 201; a first pair of planetary gears 203; a second pair of planetary gears 204; a first connecting rod 205; a second connecting rod 207; member 209; and ring gear 211.

[0025] The first pair of planetary gears 203 includes a first planetary gear 213 and a second planetary gear 215 , and the second pair of planetary gears 204 includes a third planetary gear 217 and a fourth planetary gear 219 . If necessary, th...

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PUM

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Abstract

A variable gear ratio steering apparatus for an automobile includes an input shaft connected to a steering wheel; a sun gear coaxially formed with the input shaft while enclosing the input shaft; a first pair of planet gears externally meshing with the sun gear; a second pair of planet gears externally meshing with the sun gear; a first carrier coupled to the input shaft while connecting the first pair of planet gears; a second carrier adapted to rotate relative to the input shaft while connecting the second pair of planet gears; a ring gear internally meshing with the first and second pairs of planet gears; and an input shaft connected to the ring gear. The second carrier is inserted into the first carrier while being supported by a compression means so that the second carrier can rotate relative to the input shaft. This reduces backlash.

Description

technical field [0001] The invention relates to a steering system with a variable transmission ratio for a motor vehicle. More particularly, the present invention relates to a variable ratio steering apparatus for automobiles having a planetary gear system including a sun gear, a first planet carrier, and a second planet carrier, the second planet carrier being Inserted into the first planet carrier and supported by the pressing device at the same time, so that the second planet carrier can perform relative rotation around the sun gear, so as to reduce the backlash. Background technique [0002] As is well known in the art, a planetary gear system includes: a sun gear; planet gears that mesh externally with the sun gear while being supported by a planet carrier; and ring gears that mesh internally with the planet gears. If necessary, the planetary gear system can adopt a simpler structure. The sun gear, the planetary gear, and the ring gear can serve as a fixed member, an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/02F16H3/46
CPCF16H57/082F16H1/2863B62D5/008H04M1/0264H04M2250/20H04M2201/34H04M2201/38H04M1/72403
Inventor 崔祯洛金秉国
Owner HL MANDO CORP
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