Forging process of energy-saving rear spline shaft

A spline shaft and process technology, which is applied in the field of energy-saving spline shaft forging technology, can solve the problems of high cost and high energy consumption, and achieve the effects of improving quality, saving energy, and reducing the weight of blanking

Active Publication Date: 2021-03-09
重庆传动轴股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rear spline shaft is generally produced by forging technology. In the prior art, when the rear spline shaft is forged, the entire rear spline shaft needs to be heated, resulting in high energy consumption and high cost

Method used

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  • Forging process of energy-saving rear spline shaft
  • Forging process of energy-saving rear spline shaft
  • Forging process of energy-saving rear spline shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The embodiment is basically as attached figure 1 Shown: a forging process of energy-saving rear spline shaft, including the following steps:

[0032] (1) Prepare materials; prepare blanks;

[0033] (2) Heating: the billet heating section prepared in step (1) is heated by a four-station intermediate frequency heating furnace; the heating temperature is 1100°C;

[0034] (3) Forming: put the billet heated in step (2) into the mold and forge; before putting the billet into the mould, spray the cooling lubricating liquid evenly into the forming upper mold and the lower mold cavity with a spray gun; When feeding the blank, make the feeding end of the blank upward; after putting the blank into the forming lower mold, it also includes pressing the blank to the lower mold with a flat die, so that the top surface of the blank is lower than the end surface of the lower mold, and then take out the flat mold; Die forging, the pressure during forging shall not exceed 20MPa;

[003...

Embodiment 2

[0038] The difference between this embodiment and Embodiment 1 is that the heating temperature of step (2) in this embodiment is 1130°C.

Embodiment 3

[0040] The difference between this embodiment and Embodiment 1 is that the heating temperature in step (2) in this embodiment is 1230°C.

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Abstract

The invention relates to the technical field of transmission shaft production, and discloses a forging process of an energy-saving rear spline shaft. The forging process of the energy-saving rear spline shaft comprises the steps of (1) preparing materials: preparing a blank; (2) heating: heating the heating section of the blank prepared in the step (1); (3) forming: putting the blank heated in thestep (2) into a mold for forging; (4) demolding: withdrawing an upper mold, and ejecting the blank; and (5) inspection: inspecting the product manufactured in the step (4). According to the energy-saving rear spline transmission shaft forged by the process, the blanking weight can be reduced, energy is saved, the quality is improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of transmission shaft production, in particular to an energy-saving rear spline shaft forging process. Background technique [0002] The transmission shaft is an important part of power transmission in the car transmission system. Its function is to transmit the power of the engine to the wheels together with the gearbox and drive axle, so that the car can generate driving force. The transmission shaft is composed of a shaft tube, a telescopic sleeve and a universal joint, and the telescopic sleeve can automatically adjust the change of the distance between the transmission and the drive axle. The universal joint is to ensure the change of the angle between the output shaft of the transmission and the input shaft of the drive axle, and to realize the transmission of the two shafts at equal angular speeds. [0003] The spline shaft is a kind of mechanical transmission. Its structure is that there are longitu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/06B21J13/02B21J13/14B21J1/06
CPCB21K1/06B21J13/02B21J13/14B21J1/06Y02P70/10
Inventor 颜永生
Owner 重庆传动轴股份有限公司
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