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Eccentric motor shaft production method

A technology of eccentric motor and motor shaft, which is applied in the direction of manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problem that the strength of the motor shaft cannot meet the demand, and achieve the effect of low processing cost, less time consumption and high strength

Inactive Publication Date: 2021-04-30
TIANJIN YUEFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many kinds of starters for automobile generators, but they all include a drive shaft. The shaft used by the motor is a part that supports the shaft. It can guide the rotation of the shaft and can also bear the idling parts on the shaft. Metal balls or rollers and lubricated inner and outer ring metal surfaces to reduce friction. These balls or balls carry the load and support the motor shaft so that the motor can rotate smoothly. During the production and processing of the current motor shaft, most The formed motor shaft is directly subjected to quenching and tempering heat treatment to enhance the strength and wear resistance of the motor shaft. Although this preparation method can improve the mechanical properties of the motor shaft, it is not suitable for some harsh road conditions. , the strength of such a motor shaft still cannot meet the demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021]An eccentric motor shaft preparation method, its steps:

[0022]S1 preparation: Select different weight carbon steel rolled round steel and forgings as prepared raw materials, carbon steel rolled round steel and forgings of 20 crmmnti carbon steel, and then select the selected raw materials to wash in the cleaning pool. Wash the impurities of the surface of the raw material;

[0023]S2 rough processing: punch the raw material on the punch, different lengths depending on the model of the generator;

[0024]S3 finishing: clamp the blanks on the unoccupial grinding machine, sandwich the base circle, then clamp the blanks on the CNC lathe, select the B-type central diamond, the first end of the fine car, and then the second end surface;

[0025]S4 bonding processing: Processes the spline grooves required for the desired size on the blanket and the joker tank of the spline of the spline of the spline of 5-10 mm;

[0026]S5 normal fire treatment: placed the blanks in the heating device for normal ...

Embodiment 1

[0032]An eccentric motor shaft preparation method, its steps:

[0033]S1 preparation: Select different weight carbon steel rolled round steel and forgings as prepared raw materials, carbon steel rolled round steel and forgings of 20 crmmnti carbon steel, and then select the selected raw materials to wash in the cleaning pool. Wash the impurities of the surface of the raw material;

[0034]S2 rough processing: punch the raw material on the punch, different lengths depending on the model of the generator;

[0035]S3 finishing: clamp the blanks on the unoccupial grinding machine, sandwich the base circle, then clamp the blanks on the CNC lathe, select the B-type central diamond, the first end of the fine car, and then the second end surface;

[0036]S4 key slot processing: Processes the spollic grooves required for the desired size on the blanket and the joker groove of the spline of the spline of the spline of the spline of 10 mm;

[0037]S5 normal treatment: placed the blanks in the heating device ...

Embodiment 2

[0042]An eccentric motor shaft preparation method, its steps:

[0043]S1 preparation: Select different weight carbon steel rolled round steel and forgings as prepared raw materials, carbon steel rolled round steel and forgings of 20 crmmnti carbon steel, and then select the selected raw materials to wash in the cleaning pool. Wash the impurities of the surface of the raw material;

[0044]S2 rough processing: punch the raw material on the punch, different lengths depending on the model of the generator;

[0045]S3 finishing: clamp the blanks on the unoccupial grinding machine, sandwich the base circle, then clamp the blanks on the CNC lathe, select the B-type central diamond, the first end of the fine car, and then the second end surface;

[0046]S4 key slot processing: Processes the needle groove and connect key grooves required for the desired size on the blank, and the teeth of the spline of the spline is 5 mm;

[0047]S5 normal treatment: placing the blanks in the heating device for normal tre...

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Abstract

The invention relates to an eccentric motor shaft production method. The eccentric motor shaft production method comprises the following steps: (1) preparing materials; (2) conducting rough machining; (3) conducting fine machining; (4) conducting key groove machining; (5) conducting normalizing treatment; (6) conducting quenching and tempering treatment; (7) conducting quenching treatment; and (8) conducting low-temperature tempering. The motor shaft production method is low in machining cost and short in consumed time, after motor shaft heat treatment is conducted, it is guaranteed that spline roots have complete quenching hardness, and stress concentration areas have higher hardness, so that the fatigue lives of parts are effectively prolonged.

Description

Technical field[0001]The present invention relates to the field of production of motor shafts, and more particularly to an eccentric motor shaft preparation method.Background technique[0002]With the diversification and miniaturization of the automotive engine, the engine structure is increasing, and the mounting position of the generator also changes. At present, the starter of the automotive generator is a variety of starters, but it includes a drive shaft. The axis used by the motor is a part of a support shaft. He can guide the axis of rotation, or to withstand the part of the shaft, the motor shaft utilizes smooth Metal ball or roller and lubricated inner ring and outer ring metal surface to reduce friction, these balls or balls carry loads, support the motor spindle, so that the motor can rotate smoothly, the current motor shaft is in the production and processing process, most It is directly to quench and back heat treatment directly to enhance the strength and wear resistance...

Claims

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Application Information

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IPC IPC(8): C21D9/28B23P15/00
CPCC21D9/28B23P15/00
Inventor 崔桂生运起健吴明明张连辉张宝华于晓雷高显胜李泽宇樊艳权孝本康
Owner TIANJIN YUEFENG TECH