Processing technology of starting transmission gear

A processing technology and transmission gear technology, which is applied in the processing technology field of starting transmission gears, can solve the problems of difficult processing of gear discs, high scrap rate, and heat treatment that cannot meet the requirements of differentiation, so as to achieve optimized machining steps and low scrap rate , significant economic effect

Inactive Publication Date: 2019-11-08
重庆申耀机械工业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Third, due to the different requirements for the hardness and depth of the carburized layer of the gear disc part and the gear sleeve part of the starting transmission gear (see figure 1 ), and the existing heat treatment cannot meet the distinction requirements;
[0007] Fourth, if the tooth plate of the starting transmission gear is processed after heat treatment, carburizing and quenching, there is a problem that the hobbing of the tooth portion of the gear plate is difficult and the scrap rate is high

Method used

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  • Processing technology of starting transmission gear
  • Processing technology of starting transmission gear
  • Processing technology of starting transmission gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1: A kind of processing technology of starting transmission gear, it adopts to separately process the gear plate N and the gear cover M respectively first, and then combine the gear plate N and the gear cover M to process;

[0068] Among them, see figure 2 , the gear plate N adopts 20CrMo material, and its separate processing steps include:

[0069] a1) forging to obtain a blank;

[0070] a2) Finishing the first end surface N-1 and the first inner hole N-2;

[0071] a3) The second end surface N-3, the first outer circle N-4 and the sinking platform N-5 of the finish car;

[0072] a4) drilling or punching N-6;

[0073] a5) hobbing N-7;

[0074] a6) Deburring;

[0075] a7) Inspection;

[0076] Among them, see image 3 , the gear sleeve M is made of 20CrMo material, and its separate processing steps include:

[0077] b1) forging to obtain a blank;

[0078] b2) Finishing the third end surface M-1, the second inner hole M-2 and the second outer circle M-3;...

Embodiment 2

[0111] Embodiment 2: A kind of processing technology of starting transmission gear, it adopts to separately process the gear plate N and the gear sleeve M respectively first, and then the gear plate N and the gear sleeve M are processed in combination;

[0112] Among them, see figure 2 , the gear plate N adopts 20CrMo material, and its separate processing steps include:

[0113] a1) forging to obtain a blank;

[0114] a2) Finishing the first end surface N-1 and the first inner hole N-2;

[0115] a3) The second end surface N-3, the first outer circle N-4 and the sinking platform N-5 of the finish car;

[0116] a4) drilling or punching N-6;

[0117] a5) hobbing N-7;

[0118] a6) deburring;

[0119] a7) Inspection;

[0120] Among them, see image 3 , the gear sleeve M is made of 20CrMo material, and its separate processing steps include:

[0121] b1) forging to obtain a blank;

[0122] b2) Finishing the third end surface M-1, the second inner hole M-2 and the second out...

Embodiment 3

[0155] Embodiment 3: A kind of processing technology of starting transmission gear, it adopts to separately process the gear plate N and the gear cover M respectively first, and then the gear plate N and the gear cover M are processed in combination;

[0156] Among them, see figure 2 , the gear plate N adopts 20CrMo material, and its separate processing steps include:

[0157] a1) forging to obtain a blank;

[0158] a2) Finishing the first end surface N-1 and the first inner hole N-2;

[0159] a3) The second end surface N-3, the first outer circle N-4 and the sinking platform N-5 of the finish car;

[0160] a4) drilling or punching N-6;

[0161] a5) hobbing N-7;

[0162] a6) Deburring;

[0163] a7) Inspection;

[0164] Among them, see image 3 , the gear sleeve M is made of 20CrMo material, and its separate processing steps include:

[0165] b1) forging to obtain a blank;

[0166] b2) Finishing the third end surface M-1, the second inner hole M-2 and the second outer...

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Abstract

The invention discloses a processing technology of a starting transmission gear. The processing technology is characterized in that a gear disc and a gear sleeve are machined separately, and then thegear disc and the gear sleeve are combined to machine; the individual processing steps of the gear disc comprise comprises the following steps of forging, finish turning a first end face and a first inner hole, finish turning second end surface, a first outer circle and a sedimentation table, drilling or punching, gear hobbing, deburring, and inspection; the individual processing steps of the gearsleeve comprises the following steps of forging, finish turning a third end face, a second inner hole and a second outer circle, finish turning a fourth end face and a stepped outer circle, carryingout carburizing heat treatment, and turning a welding groove and turning to remove a carburized layer on the fourth end face; and the combination machining of the gear disc and the gear sleeve comprises the following steps of assembling the gear disc and the gear sleeve in a press fitting manner, welding the gear disc and the gear sleeve into a whole, carrying out heat treatment, and fine turninga second inner hole and a second outer circle of the gear sleeve. According to the processing technology, manufacturing and processing of the starting transmission gear can be realized, and the technical problem that the depth requirements of the carburized layer at different parts of the starting transmission gear are different can be solved.

Description

technical field [0001] The invention belongs to a processing technology of a starting transmission gear. Background technique [0002] The principle of the starting one-way clutch is one-way engagement and reverse disengagement. When starting, the starter motor (or starter motor, etc.) is generally used to drive the crankshaft to rotate through the one-way clutch. Since the speed of the starter motor is higher than that of the engine (the engine is relatively static or the speed is very low before starting), when the engine starts Finally, because its speed is higher than that of the starter motor, the one-way clutch rotates in the opposite direction relative to the crankshaft, so the starter motor is separated from the rotation of the engine to protect the starter motor from damage. And the starting drive gear is a key part of starting the one-way clutch. [0003] see figure 1 , the existing starter drive gear (see figure 1 ) The processing technology is: forging-cuttin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
CPCB23P15/14
Inventor 林光华
Owner 重庆申耀机械工业有限责任公司
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