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Mechanical transmission shaft and preparation method thereof

A mechanical transmission and element technology, applied in the field of mechanical transmission components, can solve the problems of high cost and complex structure, and achieve the effects of long practical life, improved transmission efficiency and high strength

Inactive Publication Date: 2016-12-14
路望培
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this structure is more complicated and the cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of a mechanical transmission shaft, prepared by the following steps:

[0025] (1) Weigh the following raw materials in parts by weight: 10 parts of 40Cr steel, 5 parts of stainless steel powder, 1 part of aluminum element, 1 part of nickel element and 1 part of titanium element;

[0026] (2) The 40Cr steel and the stainless steel powder weighed in step (1) are molded earlier, and cold isostatic pressing is performed under a pressure of 6kPa for 2 hours;

[0027] (3) adding the aluminum element, nickel element and titanium element weighed in step (1) and molding together;

[0028] (4) The cold isostatic compact is hot-extruded at a temperature of 900°C;

[0029] (5) the blank of step (4) molding is flattened and the outer circle of the car on the instrument lathe, and made into a blank that meets the step (6) press mold;

[0030] (6) Anneal the billet formed in step (4) at a high temperature of 900°C for a holding time of 10 hours, and then cool it...

Embodiment 2

[0039] A preparation method of a mechanical transmission shaft, prepared by the following steps:

[0040] (1) Weigh the following raw materials in parts by weight: 15 parts of 40Cr steel, 7 parts of stainless steel powder, 2 parts of aluminum element, 2 parts of nickel element and 2 parts of titanium element;

[0041] (2) The 40Cr steel and the stainless steel powder weighed in step (1) are molded earlier, and cold isostatic pressing is carried out under a pressure of 6.5kPa for 2 hours;

[0042] (3) adding the aluminum element, nickel element and titanium element weighed in step (1) and molding together;

[0043] (4) The cold isostatic compact is hot-extruded at a temperature of 1000°C;

[0044] (5) the blank of step (4) molding is flattened and the outer circle of the car on the instrument lathe, and made into a blank that meets the step (6) press mold;

[0045] (6) Anneal the billet formed in step (4) at a high temperature of 950°C for a holding time of 10 hours, then whe...

Embodiment 3

[0054] A preparation method of a mechanical transmission shaft, prepared by the following steps:

[0055] (1) Weigh the following raw materials in parts by weight: 20 parts of 40Cr steel, 10 parts of stainless steel powder, 3 parts of aluminum element, 3 parts of nickel element and 3 parts of titanium element;

[0056] (2) The 40Cr steel and the stainless steel powder weighed in step (1) are molded earlier, and cold isostatic pressing is performed under a pressure of 7kPa for 2 hours;

[0057] (3) adding the aluminum element, nickel element and titanium element weighed in step (1) and molding together;

[0058] (4) The cold isostatic compact is hot-extruded at a temperature of 1100°C;

[0059] (5) the blank of step (4) molding is flattened and the outer circle of the car on the instrument lathe, and made into a blank that meets the step (6) press mold;

[0060] (6) Anneal the billet formed in step (4) at a high temperature of 1000°C for a holding time of 10 hours, and then c...

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PUM

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Abstract

The invention relates to a mechanical transmission shaft and a preparation method thereof. The mechanical transmission shaft is made of, by weight, 10-20 parts of 40Cr steel, 5-10 parts of stainless steel powder, 1-3 parts of aluminum element, 1-3 parts of nickel element and 1-3 parts of titanium element. The mechanical transmission shaft and the preparation method thereof have the beneficial effects that the axial sliding resistance and abrasion of the transmission shaft are small, the transmission efficiency is effectively improved, and the manufactured transmission shaft is high in strength, good in abrasion resistance and long in service life.

Description

technical field [0001] The invention relates to the field of mechanical transmission components, in particular to a mechanical transmission shaft and a preparation method thereof. Background technique [0002] The transmission shaft assembly is mainly composed of the transmission shaft and the spline shaft welded at both ends and the universal joint fork. The transmission shaft is generally provided with a sliding spline composed of a sliding fork and a spline shaft to realize the change of the transmission length. In order to reduce the axial sliding resistance and wear of the sliding spline, spline teeth are sometimes phosphating or sprayed with a nylon layer; some rolling elements such as needles, rollers or balls are placed in the spline groove to roll Friction replaces sliding friction to improve transmission efficiency. But this structure is more complicated and the cost is higher. Sometimes for transmissions with severe shock loads, elastic transmission shafts are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14B22F1/00
CPCB23P15/14B22F1/0003
Inventor 路望培
Owner 路望培