CN104070334A - Manufacturing process of arc bevel gear - Google Patents
Manufacturing process of arc bevel gear Download PDFInfo
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- CN104070334A CN104070334A CN201410300148.7A CN201410300148A CN104070334A CN 104070334 A CN104070334 A CN 104070334A CN 201410300148 A CN201410300148 A CN 201410300148A CN 104070334 A CN104070334 A CN 104070334A
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- bevel gear
- manufacturing process
- heating
- well formula
- furnace
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The invention relates to a manufacturing process of an arc bevel gear. The manufacturing process of the arc bevel gear includes following steps: step 1, forging and pressing a blank; step 2, preparing heat treatment; step 3, cutting teeth; step 4, performing the heat treatment; step 5, processing finish machining on an installation connection component; step 6, grinding the teeth; step 7, performing phosphorization; step 8, pairing the teeth. According to the manufacturing process of the arc bevel gear, detected hardness of the end face of the arc bevel gear obtained by using the manufacturing process is originally set to be 450-480HV, the organization of the arc bevel gear is nitrogenous martensite, the depth of a hardened layer of the arc bevel gear is 0.2-0.5mm, and the arc bevel gear fully meets design requirements.
Description
Technical field
The present invention relates to the manufacturing process of bevel gear.
Background technology
The processing of bevel gear is more complicated in Gear Processing, is mainly manifested in cutting operation.
Traditional bevel gear processing technology is such: selection-forging and stamping blank-normalizing-rough turn-wheel blank and fine finishining-gear lapping-pairing that thick fine finishining-cutting-quenching-tempering-installation connecting portion of connecting portion is installed; Above processing technology can access the product of good quality to a certain extent, and still, existing processing technology exists interiors of products crystal grain excessively thick, after heat treatment distortion larger, the not high deficiency of precision, thus affected greatly service life of bevel gear.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of manufacture method of Novel plunger pump retainer, and technique is simple, can guarantee the precision of retainer, avoids retainer window to crack, and enhances productivity.
For solving above-mentioned existing technical problem, the present invention adopts following scheme: the manufacturing process of bevel gear, comprises following step:
Step 1, forging and stamping blank;
Step 2, conditioning treatment;
Step 3, cutting;
Step 4, heat treatment;
Step 5, the fine finishining that connecting portion is installed;
Step 6, gear lapping;
Step 7, phosphatization;
Step 8, pairing.
Described conditioning treatment: utilize residual forging heat to carry out normalized treatment.
Described conditioning treatment is modulation treatment: specifically 830 ~ 850 ℃ of heating in common moderate box-type furnace, oil quenchinng after thoroughly burning; 610 ~ 630 ℃ of heating in low hot-well formula resistance furnace, water-cooled after thoroughly burning.
Described heat treatment: 820 ~ 860 ℃ of heating in pit carburizing furnace, splash into methyl alcohol and acetone and carry out carbo-nitriding, and direct quenching is cooling in the deep fat of 80 ℃; Then tempering in low hot-well formula resistance furnace, 350 ~ 420 ℃ of heating, air cooling after thoroughly burning.
Described heat treatment: in 560 ~ 580 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h in well formula nitriding furnace; Then tempering in low hot-well formula resistance furnace: 180 ~ 200 ℃ of heating, air cooling after insulation 1h.
Also comprise the austenite carbo-nitriding of gear: in well formula nitriding furnace, in 770 ~ 790 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h; Then tempering in low hot-well formula resistance furnace: 380 ~ 450 ℃ of heating, air cooling after insulation 2h.
Beneficial effect of the present invention:
At end face, detect the former 450 ~ 480HV that is decided to be; Tissue committee martensite containing nitrogen; Case depth is 0.2 ~ 0.5mm, meets design requirement comprehensively.
The specific embodiment
To be described in further detail the present invention below.
Embodiment mono-,
The manufacturing process route of 20CrMo and 20Cr steel gear: comprise the following steps:
Step 1, blanking;
Step 2, rough turn;
Step 3, normalizing;
Step 4, carbo-nitriding;
Step 5, quenching;
Step 6, tempering;
Step 7, be ground to finished product.
Described conditioning treatment: utilize residual forging heat to carry out normalized treatment.Hardness is 156 ~ 214HBW, and to improve mechanical processing technique, its gross decarburization layer must not surpass 1/3 of reserved processing capacity.
Described heat treatment: 820 ~ 860 ℃ of heating in pit carburizing furnace, splash into methyl alcohol and acetone and carry out carbo-nitriding, and direct quenching is cooling in the deep fat of 80 ℃; Then tempering in low hot-well formula resistance furnace, 350 ~ 420 ℃ of heating, air cooling after thoroughly burning.
Also comprise the austenite carbo-nitriding of gear: in well formula nitriding furnace, in 770 ~ 790 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h; Then tempering in low hot-well formula resistance furnace: 380 ~ 450 ℃ of heating, air cooling after insulation 2h.
Result: detect the former 450 ~ 480HV that is decided to be at end face; Tissue committee martensite containing nitrogen; Case depth is 0.2 ~ 0.5mm, meets design requirement comprehensively.
Embodiment bis-,
The manufacturing process of 40Cr steel gear, comprises following step:
Step 1, blanking;
Step 2, rough turn;
Step 3, modulation treatment;
Step 4, fine finishining;
Step 5, mill teeth;
Step 6, nitrocarburizing;
Step 7, be ground to finished product.
Described conditioning treatment is modulation treatment: specifically 830 ~ 850 ℃ of heating in common moderate box-type furnace, oil quenchinng after thoroughly burning; 610 ~ 630 ℃ of heating in low hot-well formula resistance furnace, water-cooled after thoroughly burning.
Described heat treatment: in 560 ~ 580 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h in well formula nitriding furnace; Then tempering in low hot-well formula resistance furnace: 180 ~ 200 ℃ of heating, air cooling after insulation 1h.
Also comprise the austenite carbo-nitriding of gear: in well formula nitriding furnace, in 770 ~ 790 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h; Then tempering in low hot-well formula resistance furnace: 380 ~ 450 ℃ of heating, air cooling after insulation 2h.
Result: detect the former 450 ~ 480HV that is decided to be at end face; Tissue committee martensite containing nitrogen; Case depth is 0.2 ~ 0.5mm, meets design requirement comprehensively.
Claims (7)
1. a manufacturing process for bevel gear, is characterized in that, comprises following step:
Step 1, forging and stamping blank;
Step 2, conditioning treatment;
Step 3, cutting;
Step 4, heat treatment;
Step 5, the fine finishining that connecting portion is installed;
Step 6, gear lapping;
Step 7, phosphatization;
Step 8, pairing.
2. the manufacturing process of bevel gear according to claim 1, is characterized in that, described conditioning treatment: utilize residual forging heat to carry out normalized treatment.
3. the manufacturing process of bevel gear according to claim 1, is characterized in that, described conditioning treatment is modulation treatment: specifically 830 ~ 850 ℃ of heating in common moderate box-type furnace, oil quenchinng after thoroughly burning; 610 ~ 630 ℃ of heating in low hot-well formula resistance furnace, water-cooled after thoroughly burning.
4. the manufacturing process of bevel gear according to claim 1, is characterized in that, described heat treatment: 820 ~ 860 ℃ of heating in pit carburizing furnace, and splash into methyl alcohol and acetone and carry out carbo-nitriding, and direct quenching is cooling in the deep fat of 80 ℃; Then tempering in low hot-well formula resistance furnace, 350 ~ 420 ℃ of heating, air cooling after thoroughly burning.
5. the manufacturing process of bevel gear according to claim 1, is characterized in that, described heat treatment: in well formula nitriding furnace, in 560 ~ 580 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h; Then tempering in low hot-well formula resistance furnace: 180 ~ 200 ℃ of heating, air cooling after insulation 1h.
6. the manufacturing process of bevel gear according to claim 4, is characterized in that, also comprises the austenite carbo-nitriding of gear: in well formula nitriding furnace, in 770 ~ 790 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h; Then tempering in low hot-well formula resistance furnace: 380 ~ 450 ℃ of heating, air cooling after insulation 2h.
7. the manufacturing process of bevel gear according to claim 5, is characterized in that, also comprises the austenite carbo-nitriding of gear: in well formula nitriding furnace, in 770 ~ 790 ℃, lead to ammonia and splash into methyl alcohol and carry out nitrocarburizing, directly oil quenchinng after insulation 4h; Then tempering in low hot-well formula resistance furnace: 380 ~ 450 ℃ of heating, air cooling after insulation 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300148.7A CN104070334B (en) | 2014-06-30 | 2014-06-30 | A kind of manufacturing process of bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300148.7A CN104070334B (en) | 2014-06-30 | 2014-06-30 | A kind of manufacturing process of bevel gear |
Publications (2)
| Publication Number | Publication Date |
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| CN104070334A true CN104070334A (en) | 2014-10-01 |
| CN104070334B CN104070334B (en) | 2016-08-24 |
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| CN201410300148.7A Active CN104070334B (en) | 2014-06-30 | 2014-06-30 | A kind of manufacturing process of bevel gear |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439992A (en) * | 2014-11-19 | 2015-03-25 | 柳州科尔特锻造机械有限公司 | Drive bevel gear machining method |
| CN104723046A (en) * | 2015-03-26 | 2015-06-24 | 西安北方光电科技防务有限公司 | Method for improving nitriding bevel gear wheel part machining precision |
| CN108747238A (en) * | 2018-08-06 | 2018-11-06 | 合肥银泉铸造有限责任公司 | A kind of Machining Spiral Bevel Gear technique |
| CN108942125A (en) * | 2018-08-06 | 2018-12-07 | 合肥银泉铸造有限责任公司 | A kind of diclinic Gearmaking Technology |
| CN109483184A (en) * | 2017-09-13 | 2019-03-19 | 南京美克斯精密机械有限公司 | A kind of bevel gear machining method |
| CN110030362A (en) * | 2018-12-24 | 2019-07-19 | 南京儒一航空机械装备有限公司 | A kind of straight bevel gear and manufacturing process |
| CN112935737A (en) * | 2021-03-25 | 2021-06-11 | 上齿集团有限公司 | Novel spiral bevel gear dry cutting method |
Citations (6)
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| JPH05320746A (en) * | 1992-05-25 | 1993-12-03 | Mitsubishi Motors Corp | Manufacture of gear made of austemper ductile cast iron |
| CN1229018A (en) * | 1998-03-13 | 1999-09-22 | 张元增 | Method for making speed changer gear |
| CN1540029A (en) * | 2003-10-28 | 2004-10-27 | 昆明理工大学 | Method for eliminating structure of internal oxidation in gas carbonitriding heat treatment for gear wheels |
| US20050198808A1 (en) * | 2004-03-15 | 2005-09-15 | Fisher James S. | Method for manufacturing bevel gears |
| JP2011105998A (en) * | 2009-11-19 | 2011-06-02 | Ud Trucks Corp | Treatment method for steel |
| CN103831599A (en) * | 2014-03-20 | 2014-06-04 | 重庆市坤津机械厂 | Machining method for hardened face gear |
-
2014
- 2014-06-30 CN CN201410300148.7A patent/CN104070334B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05320746A (en) * | 1992-05-25 | 1993-12-03 | Mitsubishi Motors Corp | Manufacture of gear made of austemper ductile cast iron |
| CN1229018A (en) * | 1998-03-13 | 1999-09-22 | 张元增 | Method for making speed changer gear |
| CN1540029A (en) * | 2003-10-28 | 2004-10-27 | 昆明理工大学 | Method for eliminating structure of internal oxidation in gas carbonitriding heat treatment for gear wheels |
| US20050198808A1 (en) * | 2004-03-15 | 2005-09-15 | Fisher James S. | Method for manufacturing bevel gears |
| JP2011105998A (en) * | 2009-11-19 | 2011-06-02 | Ud Trucks Corp | Treatment method for steel |
| CN103831599A (en) * | 2014-03-20 | 2014-06-04 | 重庆市坤津机械厂 | Machining method for hardened face gear |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439992A (en) * | 2014-11-19 | 2015-03-25 | 柳州科尔特锻造机械有限公司 | Drive bevel gear machining method |
| CN104723046A (en) * | 2015-03-26 | 2015-06-24 | 西安北方光电科技防务有限公司 | Method for improving nitriding bevel gear wheel part machining precision |
| CN109483184A (en) * | 2017-09-13 | 2019-03-19 | 南京美克斯精密机械有限公司 | A kind of bevel gear machining method |
| CN108747238A (en) * | 2018-08-06 | 2018-11-06 | 合肥银泉铸造有限责任公司 | A kind of Machining Spiral Bevel Gear technique |
| CN108942125A (en) * | 2018-08-06 | 2018-12-07 | 合肥银泉铸造有限责任公司 | A kind of diclinic Gearmaking Technology |
| CN110030362A (en) * | 2018-12-24 | 2019-07-19 | 南京儒一航空机械装备有限公司 | A kind of straight bevel gear and manufacturing process |
| CN112935737A (en) * | 2021-03-25 | 2021-06-11 | 上齿集团有限公司 | Novel spiral bevel gear dry cutting method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104070334B (en) | 2016-08-24 |
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