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Sliding sleeve

A sliding sleeve and coaxial technology, applied in the direction of motor vehicles, linear motion bearings, anti-centrifugal force rotating parts, etc., can solve the problems of unsuitable for retractable steering shaft bearings, high surface quality, manufacturing costs, etc., to achieve The effect of reducing friction

Inactive Publication Date: 2011-10-19
THYSSENKRUPP PRESTA AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both bearings are complex to produce and require a high surface quality of the parts that are movable relative to each other
Therefore, these bearings are not suitable for the support of telescopic steering shafts

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] exist figure 1 A side view of the telescoping steering shaft 1 is shown in . The steering shaft 1 includes an inner shaft 2 and an outer shaft 3 . The inner shaft 2 is provided with a non-circular, in this example roughly cloverleaf-shaped cross-section. The outer shaft 3 is tubular in shape and has a hollow cross-section which is complementary to the outer peripheral contour of the inner steering shaft. The inner shaft 2 and the outer shaft 3 each carry on the end faces a connecting piece 4 known per se for a universal joint for connecting a steering gear with a steering column. In this example, a universal joint is shown as joint, in which a pin (pin cross) of the universal joint crosshead is mounted rotatably in a connection part 4 designed as a fork, wherein the fork The support structures of the shape are vertically offset from each other, but it is conceivable and possible that other joints or entirely different elements are connected to the telescoping shaft p...

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PUM

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Abstract

The invention relates to a telescoping steering spindle (1) having an inner spindle (2) and an outer spindle (3), which are disposed coaxially to each other and have an out-of-round cross-section for transmitting a torque, wherein an intermediate space is provided between the outer spindle (3) and the inner spindle (2), a sliding sleeve (5) being disposed in said intermediate space, wherein the sliding sleeve (5) is equipped with a surface structuring (11) on at least one surface facing the inner spindle (2) or the outer spindle (3).

Description

technical field [0001] The invention relates to a sliding sleeve between two structural elements that can be nested or rotatably inserted into one another, having the features of the preamble of claim 1, and a sliding sleeve having the features of the preamble of claim 5. Telescopic steering shaft, and a method for producing a sliding sleeve with the features of claim 11 . Background technique [0002] The sliding sleeve is used to reduce friction and / or to compensate, for example, play between the relatively rotatable and telescopic bushings and the play between the outer and inner shafts of the telescoping steering shaft. [0003] The telescoping steering shaft has two coaxial shaft parts which have a non-circular cross-section and are axially movable but capable of transmitting torque. In steering shafts it is important to transmit the torque without backlash, but it is also important that the friction is as low as possible. In motor vehicles, a telescopic steering shaf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C3/035F16C29/02F16C33/20B29C59/04B62D1/16
CPCB29C59/04B62D1/16F16C3/035F16C29/02F16C33/201B29C59/043B62D1/185B62D1/20F16C33/20F16D3/06F16D2300/10F16C2326/24F16C2220/02F16C2220/44F16C2220/04F16C33/208F16C2220/48Y10T29/49471Y10T403/7026
Inventor 安德烈亚斯·普里茨勒尔
Owner THYSSENKRUPP PRESTA AG
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