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Method for producing camshaft assembly

一种凸轮轴、凸轮元件的技术，应用在凸轮、联轴器、发动机元件等方向，能够解决低精度等问题

Active Publication Date: 2019-10-22
THYSSENKRUPP PRESTA TECCENTER AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The widened area used to form the cam seat is produced using a mandrel tool, whereby only low precision can be achieved

Method used

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  • Method for producing camshaft assembly
  • Method for producing camshaft assembly
  • Method for producing camshaft assembly

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0031] figure 1Exemplarily shown is a carrier shaft 10 with a non-grinding surface 18 , wherein the carrier shaft 10 is in the form of a hollow shaft and comprises a cavity 19 extending along a central axis 17 . The carrier shaft 10 thus forms a weight-minimized tube extending rotationally symmetrically with respect to the central axis 17 and the carrier shaft 10 can be cut to length, for example, from a rod of material.

[0032] figure 2 An assembly consisting of a carrier shaft 10 and an end piece 11 is shown, and the end piece 11 may for example be a drive wheel, a phase adjuster or part of a phase adjuster, and in the context of the present invention the end piece 11 is Have part of the camshaft ready for use. For fastening the end part 11, the end part 11 comprises a protrusion 20, which can be inserted, for example, into the cavity 19 of the carrier shaft 10, wherein the end part 11 can also be connected in some other way, for example by an adhesive bonding process. ...

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PUM

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Abstract

The invention relates to a method for producing a ready-to-use camshaft (1) for controlling the valves of an internal combustion engine, the camshaft (1) having a carrier shaft (10) and a plurality of cam elements (12), Arranged on the carrier shaft (10) is an end part (11), for example a drive wheel, a phase adjuster, or a part of a phase adjuster, a plurality of cam elements (12) in a positionally fixed manner is attached to a bearing shaft (10), wherein the method comprises at least the steps of: a) providing the bearing shaft (10) and an end piece (11), b) joining the end piece (11) to the bearing shaft (10 ), c) grinding at least the carrier shaft (10) to form the cam seat (13) so as to be ready for use, d) forming a surface profile (14) on the first cam seat (13), e) providing A cam element (12) with ready-to-use properties, f) seating the cam element (12) on a cam seat (13) provided with a surface profile (14), and g) matching the desired cam element ( 12) Repeat steps d) to f) the number of times corresponding to the number.

Description

technical field [0001] The invention relates to a method for producing a ready-to-use camshaft for controlling valves of an internal combustion engine, said camshaft having a carrier shaft on which an end is arranged and a plurality of cam elements part, an end part such as a drive wheel, a phaser, or a part of a phaser, the plurality of cam elements are attached to the carrier shaft in a positionally fixed manner. Background technique [0002] A method for producing ready-to-use camshafts is known, for example, from WO 2012 / 031770 A1, wherein, in order to join a plurality of cam elements to the carrier shaft, cooling of the carrier shaft and heating of the cam elements are carried out , so that the carrier shaft can be pushed through the hole in the camshaft. The carrier shaft is then reheated and the cam element is cooled again. As a result, the cam element is fastened on the carrier shaft by means of an interference fit, which occurs due to thermal changes in shape. Ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P11/00
CPCB23P11/00B24B19/12B23P2700/02F01L2001/0471F16D1/072F01L2303/00F01L1/047F01L1/34F16D1/06F16H53/025
Inventor 曼弗雷德·穆斯特尔马尔科·丘尔利奇亚伦·费舍尔彼得·维斯纳尼古拉斯·霍利维克约尔格·沙特兹尔马提亚尔·丹特斯拉斐尔·霍贝尔
Owner THYSSENKRUPP PRESTA TECCENTER AG
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