CN102705476A - Dual gear and machining process for same - Google Patents
Dual gear and machining process for same Download PDFInfo
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- CN102705476A CN102705476A CN2012101940250A CN201210194025A CN102705476A CN 102705476 A CN102705476 A CN 102705476A CN 2012101940250 A CN2012101940250 A CN 2012101940250A CN 201210194025 A CN201210194025 A CN 201210194025A CN 102705476 A CN102705476 A CN 102705476A
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Abstract
The invention discloses a dual gear and a machining process for the same. The dual gear comprises a metal gear which is integrally formed on a metal gear shaft. A plastic gear and the metal gear are coaxially assembled on the metal gear shaft. The plastic gear comprises polyamide 66 and 33 percent fiberglass. The machining process comprises the following steps of: machining a metal gear shaft blank, and machining the metal gear on the gear forming section of the metal gear shaft by using a generating method; coaxially assembling a plastic gear blank on the metal gear shaft by using an injection molding process; and machining the plastic gear on the plastic gear blank by using the generating method. In such a way, the 33 percent fiberglass is added into the conventional plastic gear, so that the performance of the plastic gear is greatly improved; and the machining process is optimized, and the gears are machined by the generating method, so that the gear has a high lubricating property, high abrasion resistance, low noise and higher tooth profile, tooth alignment and radial run-out accuracy.
Description
Technical field
The present invention relates to the Gear Processing field, particularly relate to a kind of duplicate gear and processing technology thereof.
Background technique
Put down in writing according to historical data; Just bring into use gear the sixth of the twelve Earthly Branches far away from the Ancient Chinese of B.C. 400-200 generation; The bronze gear that is unearthed in China Shanxi is the most ancient gear of having found so far, is exactly to be the mechanical device of core with the gear mechanism as the vehicle pointing to the south that reflects the ancient science technological contribution.The 17th century Mo, people just begin one's study, correctly the gear teeth shape of transmitting movement.In 18th century, after the European industrial revolution, gear-driven application is increasingly extensive; Developing cycloidal gear before this, then is involute gear.Involute gear uses generate cutting ratio juris processing metal gear.Obtain very fast development especially after utilizing the appearance of special purpose machine tool and cutter of this principle.After 19 end of the centurys, involute gear more demonstrates huge dominance.So far, generate cutting method is still the main manufacturing process of gear.And in the application of some fine module gears, nylon gear embodies bigger advantage gradually.
At present; Glass fibre strengthens PA nylon, and research was just arranged in the 1950's, is the seventies in 20th century but form industrialization; After du pont company in 1976 is developed the tough PA66 of excess of export; The new modification PA product of the numerous and confused exploitation of various countries major company, the U.S., West Europe, Japan, Holland, Italy etc. develop energetically and strengthen PA, fire-retardant PA, filling PA, and a large amount of modification PA put on market.
The eighties in 20th century; Compatibilizer technological development success; Promoted the development of PA alloy; Countries in the world are developed thousands of kinds of alloys such as PA/PE, PA/PP, PA/ABS, PA/PC, PA/PBT, PA/PET, PA/PPO, PA/PPS, PA/I.CP (liquid crystal polymer), PA/PA in succession, are widely used in industries such as automobile, locomotive, electronics, electric tool, weaving, sports goods, office appliance, household electrical appliances parts.
The nineties in 20th century, the modification of nylon new varieties constantly increase, and this, modification of nylon moved towards commercialization in period, had formed new industry, and had obtained developing rapidly, and late 1990s, world's nylon alloy output reaches 1,100,000 tons/year.
Aspect product development, mainly with high performance nylon PPO/PA6, PPS/PA66, tenacity increased nylon, nano-nylon, halogen-free reinforced nylon are taken direction as the leading factor; In application facet; Automobile component, electric component exploitation have obtained major progress; With the commercialization of high flow modifier nylon, the plastic of this baroque parts is except that application facet is significant like automobile inlet manifold; The more important thing is the life-span that has prolonged parts, promoted the development of engineering plastics processing techniquies.
Nylon gear is little because of having proportion, makes simply, and absorbed oscillation is arranged, and reduces advantages such as noise, can reduce the wearing and tearing of metal gear when using in pairs with metal gear, reduces energy consumption.Therefore be widely used in the transmission device of industries such as automobile, electronics, weaving, office appliance, household electrical appliances parts.
The birth defect of nylon gear and metal gear contrast: intensity is low.Use injection machine through mold injection straight forming nylon gear; Mould can't form theoretic involute; Add the difference on the Shooting Technique, precision such as the nylon gear profile of tooth of injection moulding, teeth directional, footpath are jumped precision etc. and can't be compared with the metal gear of traditional generating method gear hobbing processing.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of duplicate gear and processing technology thereof, can have high-lubricity, wear resistance and highi degree of accuracy, low noise, and cost is low, reduces the characteristics of friction.
For solving the problems of the technologies described above; The technological scheme that the present invention adopts is: a kind of duplicate gear is provided; Comprise: metal-toothed wheel shaft, metal gear, plastic gear, said metal gear are shaped on the said metal-toothed wheel shaft, and said plastic gear is assemblied on the said metal-toothed wheel shaft with said metal gear is coaxial; Said plastic gear comprises polyamide 66, glass fibre, and said glass fibre comprises the glass fibre of 33% glass.
The present invention also provides a kind of processing technology of duplicate gear, may further comprise the steps:
1) chooses the wheel blank of metal-toothed wheel shaft as the processing metal gear;
2) the metal-toothed wheel shaft is carried out metal-toothed gear teeth base processing, and at the metal gear forming station with generating method rolling cut processing metal gear;
3) after the gear hobbing of metal gear machines, adopt Shooting Technique to be assemblied on the said metal-toothed wheel shaft plastic teeth gear teeth base is coaxial;
4) on said plastic teeth gear teeth base, process plastic gear with the generating method rolling cut;
5) detect the precision of duplicate gear with accuracy of gear detector.
In preferred embodiment of the present invention, also comprise oiling agent in the said plastic gear.
In preferred embodiment of the present invention, the grade of accuracy of said duplicate gear is smaller or equal to the GB8 level.
In preferred embodiment of the present invention, adopt chain digital control gear hobbing machine rolling cut processing metal wheel tooth base, plastic teeth gear teeth base.
In preferred embodiment of the present invention, said chain digital control gear hobbing machine comprises six axle interlocks.
The invention has the beneficial effects as follows: duplicate gear of the present invention and processing technology thereof have added 33% glass fibre in the conventional plastic gear; Avoided adding too much or very few poor toughness that causes of proportion of fibrous material or the low problem of intensity, promoted the performance of plastic gear greatly; Optimize processing technology, adopted generating method rolling cut Machining of Gear, made gear both have high-lubricity and wear resistance, low noise, cost is low, reduces characteristics such as friction, also has higher profile of tooth, teeth directional, directly jumps precision.
Description of drawings
Fig. 1 is the structural representation of a preferred embodiment of duplicate gear of the present invention;
Fig. 2 is the side view of duplicate gear shown in Figure 1;
Fig. 3 is the process schematic representation of duplicate gear processing technology of the present invention;
The mark of each parts is following in the accompanying drawing: 1, metal-toothed wheel shaft, 2, metal gear, 3, plastic gear.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, Fig. 2 and Fig. 3, the embodiment of the invention comprises:
A kind of duplicate gear; Comprise: metal-toothed wheel shaft 1, metal gear 2, plastic gear 3; Said metal gear 2 is shaped on the said metal-toothed wheel shaft 1; Said plastic gear 3 and said metal gear 2 coaxial being assemblied on the said metal-toothed wheel shaft 1, said plastic gear 3 comprises polyamide 66, glass fibre, said glass fibre comprises the glass fibre of 33% glass.Also comprise oiling agent in the said plastic gear 3.
Because of the simple gear that uses polyamide 66 material, its material can't arrive requirement of strength, therefore needs to add a certain amount of glass fibre.And the ratio of lamination coating is the industry difficult point always.Ratio is very few, good toughness but insufficient strength.Ratio is too much, and intensity is excessive, but toughness is not enough.The present invention adds 33% glass fibre in Du Pont's polyamide 66, the glass fibre of this ratio can effectively address the above problem, and makes the intensity of gear and toughness all reach level preferably.
The present invention also designs a kind of processing technology of duplicate gear, may further comprise the steps:
1) chooses the wheel blank of metal-toothed wheel shaft 1 as processing metal gear 2;
2) metal-toothed wheel shaft 1 is carried out metal gear 2 tooth bases processing, and at metal gear 2 forming stations with generating method rolling cut processing metal gear 2;
3) after the gear hobbing of metal gear 2 machines, be assemblied on the said metal-toothed wheel shaft 1 plastic gear 3 tooth bases are coaxial, plastic gear described in the preferred embodiment of the present invention 3 is to be shaped on the said metal-toothed wheel shaft 1 through Shooting Technique;
4) on said plastic gear 3 tooth bases, process the gear hobbing of plastic gear 3 with the generating method rolling cut;
5) detect the synthesis precision of duplicate gear with accuracy of gear detector, the synthesis precision grade then is qualified during smaller or equal to the GB8 level.
Adopt chain digital control gear hobbing machine rolling cut processing metal gear 2 tooth bases, plastic gear 3 tooth bases.Chain digital control gear hobbing machine is the YKJ3610IV numerical control horizontal gear hobbing machine, is equipped with German Rexroth numerical control system, adopts six controls, and automaticity is high, can be widely used in the straight toothed spur gear of the modulus m≤3mm of various industries, helical gear processing.Use the highi degree of accuracy hobboing cutter, when adopting rational cutting specification, (helical gear of 8 class precisions of m≤1.5mm), tooth-face roughness Ra can reach 1.6 μ m can to process GB/T10095-2001.
Duplicate gear of the present invention and processing technology thereof have added 33% glass fibre in conventional plastic gear 3, have avoided adding too much or very few poor toughness that causes of proportion of fibrous material or the low problem of intensity, have promoted the performance of plastic gear 3 greatly; Optimize processing technology, adopted generating method rolling cut Machining of Gear, made gear both have high-lubricity and wear resistance, low noise, cost is low, reduces characteristics such as friction, also has higher profile of tooth, teeth directional, directly jumps precision.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. duplicate gear; It is characterized in that; Comprise: metal-toothed wheel shaft, metal gear, plastic gear, said metal gear are shaped on the said metal-toothed wheel shaft, and said plastic gear is assemblied on the said metal-toothed wheel shaft with said metal gear is coaxial; Said plastic gear comprises polyamide 66, glass fibre, and said glass fibre comprises the glass fibre of 33% glass.
2. the processing technology of duplicate gear according to claim 1 is characterized in that, may further comprise the steps:
1) chooses the wheel blank of metal-toothed wheel shaft as the processing metal gear;
2) the metal-toothed wheel shaft is carried out metal-toothed gear teeth base processing, and at the metal gear forming station with generating method rolling cut processing metal gear;
3) after the gear hobbing of metal gear machines, plastic teeth gear teeth base is assemblied on the said metal-toothed wheel shaft through Shooting Technique is coaxial;
4) on said plastic teeth gear teeth base, process plastic gear with the generating method rolling cut;
5) detect the precision of duplicate gear with accuracy of gear detector.
3. duplicate gear according to claim 1 is characterized in that, also comprises oiling agent in the said plastic gear.
4. the processing technology of duplicate gear according to claim 2 is characterized in that, the grade of accuracy of said duplicate gear is smaller or equal to the GB8 level.
5. the processing technology of duplicate gear according to claim 2 is characterized in that, adopts chain digital control gear hobbing machine rolling cut processing metal wheel tooth base, plastic teeth gear teeth base.
6. the processing technology of duplicate gear according to claim 5 is characterized in that, said chain digital control gear hobbing machine comprises six axle interlocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101940250A CN102705476A (en) | 2012-06-13 | 2012-06-13 | Dual gear and machining process for same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101940250A CN102705476A (en) | 2012-06-13 | 2012-06-13 | Dual gear and machining process for same |
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| CN102705476A true CN102705476A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101940250A Pending CN102705476A (en) | 2012-06-13 | 2012-06-13 | Dual gear and machining process for same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722355A (en) * | 2013-12-27 | 2014-04-16 | 宝钢特钢有限公司 | Method for assembling duplicate gear for roller of seamless steel tube cold rolling mill |
| CN111055091A (en) * | 2019-12-30 | 2020-04-24 | 綦江齿轮传动有限公司 | High-position machining method for duplicate gear |
| CN111231342A (en) * | 2020-02-12 | 2020-06-05 | 南通市中吕齿轮有限公司 | Processing technology of nylon gear |
| CN115875405A (en) * | 2023-02-20 | 2023-03-31 | 日本电产凯宇汽车电器（江苏）有限公司 | Transmission mechanism for pedal motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09177945A (en) * | 1995-12-28 | 1997-07-11 | Polyplastics Co | Low noise resin gear and drive noise reducing method of resin gear |
| JPH1190835A (en) * | 1997-09-17 | 1999-04-06 | Nippon Seiko Kk | Manufacturing tool for worm wheel made of fiber-reinforced resin |
| CN1578888A (en) * | 2002-08-09 | 2005-02-09 | 光洋精工株式会社 | Resin gear |
| CN1761597A (en) * | 2003-03-19 | 2006-04-19 | 日本精工株式会社 | Electric power steering device and resin gear used for the same |
| CN1948586A (en) * | 2005-10-10 | 2007-04-18 | 梁少俊 | Umbrella shaped gear for high speed industrial sewing machine |
| CN201575130U (en) * | 2010-01-08 | 2010-09-08 | 常熟市迅达粉末冶金有限公司 | Dual-articulated gear |
-
2012
- 2012-06-13 CN CN2012101940250A patent/CN102705476A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09177945A (en) * | 1995-12-28 | 1997-07-11 | Polyplastics Co | Low noise resin gear and drive noise reducing method of resin gear |
| JPH1190835A (en) * | 1997-09-17 | 1999-04-06 | Nippon Seiko Kk | Manufacturing tool for worm wheel made of fiber-reinforced resin |
| CN1578888A (en) * | 2002-08-09 | 2005-02-09 | 光洋精工株式会社 | Resin gear |
| CN1761597A (en) * | 2003-03-19 | 2006-04-19 | 日本精工株式会社 | Electric power steering device and resin gear used for the same |
| CN1948586A (en) * | 2005-10-10 | 2007-04-18 | 梁少俊 | Umbrella shaped gear for high speed industrial sewing machine |
| CN201575130U (en) * | 2010-01-08 | 2010-09-08 | 常熟市迅达粉末冶金有限公司 | Dual-articulated gear |
Non-Patent Citations (1)
| Title |
|---|
| 侯建华、王联奎: "双联齿轮的加工工艺分析与研究", 《农业装备与车辆工程》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722355A (en) * | 2013-12-27 | 2014-04-16 | 宝钢特钢有限公司 | Method for assembling duplicate gear for roller of seamless steel tube cold rolling mill |
| CN103722355B (en) * | 2013-12-27 | 2016-08-24 | 宝钢特钢有限公司 | A kind of assembly method of seamless steel pipe cold-rolling mill roll duplicate gear |
| CN111055091A (en) * | 2019-12-30 | 2020-04-24 | 綦江齿轮传动有限公司 | High-position machining method for duplicate gear |
| CN111055091B (en) * | 2019-12-30 | 2021-07-13 | 綦江齿轮传动有限公司 | High-position machining method for duplicate gear |
| CN111231342A (en) * | 2020-02-12 | 2020-06-05 | 南通市中吕齿轮有限公司 | Processing technology of nylon gear |
| CN111231342B (en) * | 2020-02-12 | 2022-03-11 | 南通市中吕齿轮有限公司 | Processing technology of nylon gear |
| CN115875405A (en) * | 2023-02-20 | 2023-03-31 | 日本电产凯宇汽车电器（江苏）有限公司 | Transmission mechanism for pedal motor |
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Application publication date: 20121003 |