CN105666072A - Machining process for rear axle driven gear - Google Patents
Machining process for rear axle driven gear Download PDFInfo
- Publication number
- CN105666072A CN105666072A CN201410661900.0A CN201410661900A CN105666072A CN 105666072 A CN105666072 A CN 105666072A CN 201410661900 A CN201410661900 A CN 201410661900A CN 105666072 A CN105666072 A CN 105666072A
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- China
- Prior art keywords
- driven gear
- incubated
- minutes
- rear axle
- carburizing
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- Heat Treatment Of Articles (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a machining process for a rear axle driven gear. The machining process comprises the following steps of forging, isothermal normalizing, shot blasting treatment, rough and finish machining, rough and finish gear cutting, carburizing and quenching, tempering at the temperature of 180 DEG C, shot blasting, inner hole grinding, lapping gear pairing, parkerising, rust preventing and packing. According to the technical scheme disclosed by the invention, by changing common normalizing into isothermal normalizing and changing the carburizing process into two-time recrystallization, the heat treatment process for the bevel gear can be greatly simplified, and meanwhile the machining cost can also be reduced.
Description
Technical field
The present invention relates to a kind of rear axle driven gear processing technique.
Background technology
Rear axle gear is the drive disk assembly often used in power transmission, and it needs to improve its every characteristic through necessary heat treatment in process of production. Existing bevel gear Technology for Heating Processing includes the steps such as common normalizing, carburizing, quenching, post bake, again quenching, operates more various and cost of manufacture is higher. Prior art is badly in need of back axle gear heat treatment technique a kind of simple to operate, that cost is low.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide a kind of rear axle driven gear processing technique, and this processing technique is simple to operate, and cost is low.
For achieving the above object, the invention provides a kind of rear axle driven gear processing technique, comprise the steps,---ball blast----mill endoporus----pairing gear lapping-phosphatization antirust----packaging that forging isothermal normalizing Shot Blasting Roughing and fine machining is thick, finishing tooth----carburizing, 180 DEG C of tempering of quenching.
The invention has the beneficial effects as follows: the present invention: by changing common normalizing into isothermal normalizing, carburizing process changes into twice recrystallization can be greatly simplified the heat treatment process of bevel gear, can also reduce processing cost simultaneously.
Detailed description of the invention
Technical scheme disclosed by the invention is a kind of rear axle driven gear processing technique, comprise the steps,---ball blast----mill endoporus----pairing gear lapping-phosphatization antirust----packaging that forging isothermal normalizing Shot Blasting Roughing and fine machining is thick, finishing tooth----carburizing, 180 DEG C of tempering of quenching.
Further, described isothermal normalizing is to be incubated 60 minutes after first driven gear being preheated to 930-940 DEG C; Then bevel gear is cooled to 550-570 DEG C soon by rapid cooling mode, is incubated more than 120 minutes; Last natural cooling or air-cooled cooling in atmosphere.
Further, described carburizing is incubated 70 minutes after driven gear is preheated to 850 DEG C, keeps carbon potential 0.8 during this; Then it is incubated more than 80 minutes after driven gear being preheated to 925 DEG C, during this, keeps carbon potential 0.78 ~ 1.24; It is incubated 60 minutes after being preheated to 935 DEG C; Then driven gear is cooled to 650 DEG C soon by rapid cooling mode, is incubated 120 minutes.
Further, described quenching refers to and temperature after carburizing is cooled down either directly through cooling medium at the driven gear of 840 DEG C, and described cooling medium is water, saline, mineral oil or air.
Carburizing process, by changing common normalizing into isothermal normalizing, is changed into by the technical scheme that the invention discloses
The heat treatment process of bevel gear can be greatly simplified by twice recrystallization, can also reduce processing cost simultaneously.
The preferred embodiment of the present invention described in detail above. Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of the present invention without creative work. Therefore, all technical staff in the art, all should in the protection domain being defined in the patent claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (4)
1. a rear axle driven gear processing technique, it is characterized in that,---ball blast----mill endoporus----pairing gear lapping-phosphatization antirust----packaging that comprising the steps, forging isothermal normalizing Shot Blasting Roughing and fine machining is thick, finishing tooth----carburizing, 180 DEG C of tempering of quenching.
2. rear axle driven gear processing technique according to claim 1, it is characterised in that: described isothermal normalizing is to be incubated 60 minutes after first driven gear being preheated to 930-940 DEG C; Then bevel gear is cooled to 550-570 DEG C soon by rapid cooling mode, is incubated more than 120 minutes; Last natural cooling or air-cooled cooling in atmosphere.
3. rear axle driven gear processing technique according to claim 1, it is characterised in that: described carburizing is incubated 70 minutes after driven gear is preheated to 850 DEG C, keeps carbon potential 0.8 during this; Then it is incubated more than 80 minutes after driven gear being preheated to 925 DEG C, during this, keeps carbon potential 0.78 ~ 1.24; It is incubated 60 minutes after being preheated to 935 DEG C; Then driven gear is cooled to 650 DEG C soon by rapid cooling mode, is incubated 120 minutes.
4. rear axle driven gear processing technique as claimed in claim 1, is characterized in that: described quenching refers to and temperature after carburizing cooled down either directly through cooling medium at the driven gear of 840 DEG C, and described cooling medium is water, saline, mineral oil or air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661900.0A CN105666072A (en) | 2014-11-19 | 2014-11-19 | Machining process for rear axle driven gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410661900.0A CN105666072A (en) | 2014-11-19 | 2014-11-19 | Machining process for rear axle driven gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105666072A true CN105666072A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410661900.0A Pending CN105666072A (en) | 2014-11-19 | 2014-11-19 | Machining process for rear axle driven gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105666072A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110343823A (en) * | 2019-07-31 | 2019-10-18 | 北京机电研究所有限公司 | A kind of isothermal normalizing heat treatment process |
| CN110791640A (en) * | 2019-11-27 | 2020-02-14 | 南京工程学院 | High-temperature carburization gear composite preparatory heat treatment process |
| CN111500833A (en) * | 2020-05-21 | 2020-08-07 | 厦门澄志精密科技有限公司 | Heat treatment process for heat-resistant steel casting of valve |
| CN111500834A (en) * | 2020-05-27 | 2020-08-07 | 江苏联峰实业有限公司 | Heat treatment process of gear steel for automobile gearbox |
| CN113337698A (en) * | 2020-03-02 | 2021-09-03 | 中车戚墅堰机车车辆工艺研究所有限公司 | Method for manufacturing gear blank |
-
2014
- 2014-11-19 CN CN201410661900.0A patent/CN105666072A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110343823A (en) * | 2019-07-31 | 2019-10-18 | 北京机电研究所有限公司 | A kind of isothermal normalizing heat treatment process |
| CN110343823B (en) * | 2019-07-31 | 2021-04-16 | 北京机电研究所有限公司 | Isothermal normalizing heat treatment process |
| CN110791640A (en) * | 2019-11-27 | 2020-02-14 | 南京工程学院 | High-temperature carburization gear composite preparatory heat treatment process |
| CN110791640B (en) * | 2019-11-27 | 2021-06-29 | 南京工程学院 | High-temperature carburization gear composite preparatory heat treatment process |
| CN113337698A (en) * | 2020-03-02 | 2021-09-03 | 中车戚墅堰机车车辆工艺研究所有限公司 | Method for manufacturing gear blank |
| CN111500833A (en) * | 2020-05-21 | 2020-08-07 | 厦门澄志精密科技有限公司 | Heat treatment process for heat-resistant steel casting of valve |
| CN111500834A (en) * | 2020-05-27 | 2020-08-07 | 江苏联峰实业有限公司 | Heat treatment process of gear steel for automobile gearbox |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160615 |
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| WD01 | Invention patent application deemed withdrawn after publication |