CN102705477A - High-precision speed-regulating sliding gear ring and preparation method for same - Google Patents
High-precision speed-regulating sliding gear ring and preparation method for same Download PDFInfo
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- CN102705477A CN102705477A CN2012101979852A CN201210197985A CN102705477A CN 102705477 A CN102705477 A CN 102705477A CN 2012101979852 A CN2012101979852 A CN 2012101979852A CN 201210197985 A CN201210197985 A CN 201210197985A CN 102705477 A CN102705477 A CN 102705477A
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- gear ring
- sliding gear
- regulating sliding
- precision speed
- tooth
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Abstract
The invention discloses a high-precision speed-regulating sliding gear ring and a preparation method for the same. The speed-regulating sliding gear ring comprises a ring body, internal teeth and external teeth are respectively arranged on the inner peripheral surface and the outer peripheral surface of the ring body, a convex ledge is arranged on the outer peripheral surface of the ring body and contacts with the external teeth, and a groove is formed in the convex ledge; the ring body comprises the following powder metallurgy component in percentage by mass: 1.35-1.65% of Cu, 1.56-1.93% of Ni, 0.45-0.55% of Mo, 0.54-0.66% of C, 0.25-0.35% of MnX and the balance Fe and inevitable impurities. The high-precision speed-regulating sliding gear ring is complex in appearance and quite high in accuracy; the density of the high-precision speed-regulating sliding gear ring is higher than 6.8g/cm<3>; the hardness of the high-precision speed-regulating sliding gear ring is higher than Brinell hardness (HRB) 70; the tooth profile accuracy of the high-precision speed-regulating sliding gear ring reaches Japanese industrial standard (JIS) 7; the complete cycle of the tooth R arc of the high-precision speed-regulating sliding gear ring is R0.2, and the tooth R arc does not have burrs; the outer diameter eccentricity of the high-precision speed-regulating sliding gear ring is less than 0.10mm; and the size of five teeth on a cross-tip diameter is 27.05(+0.2/0)mm. The high-precision speed-regulating sliding gear ring is manufactured by directly forming a powder metallurgy R arc, the tooth R arc of the inner diameter of the high-precision speed-regulating sliding gear ring is formed directly, the high-precision speed-regulating sliding gear ring is stable in transition and high in burr controllability, after the high-precision speed-regulating sliding gear ring is used, gear shifting is smooth and stable, noise is greatly reduced, and requirements on high accuracy and high quality of the high-precision speed-regulating sliding gear ring are met.
Description
Technical field
The present invention relates to the component of gearbox, be specifically related to a kind of highi degree of accuracy speed governing slip gear ring and preparation method thereof.
Background technique
Speed governing slip gear ring often is applied in the electric tool speed regulating mechanism, in order to shift gears along sliding; When using, product require internal diameter profile of tooth R arc evenly not have burr; Traditional processing method is mill gradient deburring technology, and product quality is unstable, noise is higher, can not satisfy user demand.
Summary of the invention
Goal of the invention: the deficiency to existing in the existing technology, the purpose of this invention is to provide a kind of highi degree of accuracy speed governing slip gear ring, make its steady quality, noise is low, satisfies usage requirement.Another object of the present invention provides a kind of preparation highi degree of accuracy speed governing slip gear ring method, so that its tool cost is low, precision is high, satisfies user demand.
Technological scheme: in order to realize the foregoing invention purpose, the technological scheme that the present invention adopts is following:
A kind of highi degree of accuracy speed governing slip gear ring comprises circle body, on the inside and outside circle side face of circle body, is respectively equipped with internal tooth and external tooth, on the outer peripheral surface of circle body, is provided with protruding stupefiedly touch mutually with external tooth, is provided with groove protruding on stupefied;
The powder metallurgy constituent mass percentage of described circle body is: 1.35-1.65%Cu, and 1.58-1.93%Ni, 0.45-0.55%Mo, 0.54-0.66%C, 0.25-0.35%MnX remains and is Fe and unavoidable impurities.
A kind of method for preparing highi degree of accuracy speed governing slip gear ring may further comprise the steps:
(1) the metallurgical component of mixed-powder, R arc direct forming in mould, forming pressure 60T;
(2) sintering, 1050 ~ 1120 ℃ of sintering temperatures, sintering velocity 80 ~ 120 mm/min;
(3) carburizing, Cp=1.0, time 2h;
(4) product examine, shipment.
Beneficial effect: compared with prior art, highi degree of accuracy speed governing slip gear ring of the present invention, product design is complicated, and precision is high; Density: 6.8g/cm
3More than; Hardness: HRB is more than 70; Profile accuracy: JIS 7; The R of tooth portion arc: complete all R0.2 do not have burr; External diameter is eccentric: below the 0.10mm; Stride tip footpath 5 teeth: 27.05 (+0.2/0) mm.Adopt the method for powder metallurgy R arc direct forming to make, the product internal diameter tooth R of portion arc direct forming obtains, transition steadily and burr control well, use the back gearshift more along sliding, steadily, and greatly reduce noise, satisfy product highi degree of accuracy, high-quality requirement.
Description of drawings
Fig. 1 is the plan view of highi degree of accuracy speed governing slip gear ring;
Fig. 2 is the partial sectional view of highi degree of accuracy speed governing slip gear ring.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further explanation.
As illustrated in fig. 1 and 2, highi degree of accuracy speed governing slip gear ring comprises circle body 1, on the inside and outside circle side face of circle body 1, is respectively equipped with internal tooth 2 and external tooth 3, on the outer peripheral surface of circle body 1, is provided with protruding stupefied 4 and touches mutually with external tooth 3, on protruding stupefied 4, is provided with groove 5;
The powder metallurgy component (mass percent) of this speed governing slip gear ring is: 1.35-1.65%Cu, and 1.58-1.93%Ni, 0.45-0.55%Mo, 0.54-0.66%C, 0.25-0.35%MnX remains and is Fe and unavoidable impurities.X represents the compound set of Mn, and common is MnS.
Embodiment 1
The preparation method of highi degree of accuracy speed governing slip gear ring may further comprise the steps:
(1) the metallurgical component of mixed-powder, the internal diameter tooth R of portion arc direct forming in mould, forming pressure 60T; Wherein powder metallurgy component (mass percent) is: 1.35%Cu, and 1.93%Ni, 0.55%Mo, 0.54%C, 0.25%MnX remains and is Fe and unavoidable impurities.
(2) sintering, 1050 ℃ of sintering temperatures, sintering velocity 120 mm/min;
(3) carburizing, Cp=1.0, time 2h;
(4) product examine, shipment.
The important technological parameters of acceptable product is: density: 6.8g/cm
3More than; Hardness: HRB is more than 70; Profile accuracy: JIS 7; The R of tooth portion arc: complete all R0.2 do not have burr; External diameter is eccentric: below the 0.10mm; Stride tip footpath 5 teeth: 27.05 (+0.2/0) mm.
The preparation method of highi degree of accuracy speed governing slip gear ring may further comprise the steps:
(1) the metallurgical component of mixed-powder, the internal diameter tooth R of portion arc direct forming in mould, forming pressure 60T; Wherein powder metallurgy component (mass percent) is: 1.65%Cu, and 1.58%Ni, 0.45%Mo, 0.66%C, 0.35%MnX remains and is Fe and unavoidable impurities.
(2) sintering, 1120 ℃ of sintering temperatures, sintering velocity 80 mm/min;
(3) carburizing, Cp=1.0, time 2h;
(4) product examine, shipment.
The important technological parameters of acceptable product is: density: 6.8g/cm
3More than; Hardness: HRB is more than 70; Profile accuracy: JIS 7; The R of tooth portion arc: complete all R0.2 do not have burr; External diameter is eccentric: below the 0.10mm; Stride tip footpath 5 teeth: 27.05 (+0.2/0) mm.
The preparation method of highi degree of accuracy speed governing slip gear ring may further comprise the steps:
(1) the metallurgical component of mixed-powder, the internal diameter tooth R of portion arc direct forming in mould, forming pressure 60T; Wherein powder metallurgy component (mass percent) is: 1.45%Cu, and 1.63%Ni, 0.50%Mo, 0.60%C, 0.30%MnX remains and is Fe and unavoidable impurities.
(2) sintering, 1100 ℃ of sintering temperatures, sintering velocity 100 mm/min;
(3) carburizing, Cp=1.0, time 2h;
(4) product examine, shipment.
The important technological parameters of acceptable product is: density: 6.8g/cm
3More than; Hardness: HRB is more than 70; Profile accuracy: JIS 7; The R of tooth portion arc: complete all R0.2 do not have burr; External diameter is eccentric: below the 0.10mm; Stride tip footpath 5 teeth: 27.05 (+0.2/0) mm.
The preparation method of highi degree of accuracy speed governing slip gear ring may further comprise the steps:
(1) the metallurgical component of mixed-powder, the internal diameter tooth R of portion arc direct forming in mould, forming pressure 60T; Wherein powder metallurgy component (mass percent) is: 1.55%Cu, and 1.78%Ni, 0.52%Mo, 0.62%C, 0.33%MnX remains and is Fe and unavoidable impurities.
(2) sintering, 1080 ℃ of sintering temperatures, sintering velocity 110 mm/min;
(3) carburizing, Cp=1.0, time 2h;
(4) product examine, shipment.
The important technological parameters of acceptable product is: density: 6.8g/cm
3More than; Hardness: HRB is more than 70; Profile accuracy: JIS 7; The R of tooth portion arc: complete all R0.2 do not have burr; External diameter is eccentric: below the 0.10mm; Stride tip footpath 5 teeth: 27.05 (+0.2/0) mm.
Claims (2)
1. highi degree of accuracy speed governing slip gear ring; It is characterized in that: comprise circle body (1); On the inside and outside circle side face of circle body (1), be respectively equipped with internal tooth (2) and external tooth (3); On the outer peripheral surface of circle body (1), be provided with protruding stupefied (4) and touch mutually, on protruding stupefied (4), be provided with groove (5) with external tooth (3);
The powder metallurgy constituent mass percentage of described circle body (1) is: 1.35-1.65%Cu, and 1.58-1.93%Ni, 0.45-0.55%Mo, 0.54-0.66%C, 0.25-0.35%MnX remains and is Fe and unavoidable impurities.
2. a method for preparing the described highi degree of accuracy speed governing of claim 1 slip gear ring is characterized in that, may further comprise the steps:
(1) the metallurgical component of mixed-powder, R arc direct forming in mould, forming pressure 60T;
(2) sintering, 1050 ~ 1120 ℃ of sintering temperatures, sintering velocity 80 ~ 120 mm/min;
(3) carburizing, Cp=1.0, time 2h;
(4) product examine, shipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012101979852A CN102705477A (en) | 2012-06-15 | 2012-06-15 | High-precision speed-regulating sliding gear ring and preparation method for same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101979852A CN102705477A (en) | 2012-06-15 | 2012-06-15 | High-precision speed-regulating sliding gear ring and preparation method for same |
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| CN102705477A true CN102705477A (en) | 2012-10-03 |
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| CN2012101979852A Pending CN102705477A (en) | 2012-06-15 | 2012-06-15 | High-precision speed-regulating sliding gear ring and preparation method for same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103464750A (en) * | 2013-10-12 | 2013-12-25 | 泰州市新诚新材料科技有限公司 | Manufacturing method of automobile ABS (acrylonitrile-butadiene-styrene) induction counting tooth ring |
| CN103537673A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder-metallurgy oil-pump adjusting gear ring and manufacturing method thereof |
| US11707786B2 (en) | 2020-04-17 | 2023-07-25 | PMG Indiana LLC | Apparatus and method for internal surface densification of powder metal articles |
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| US20080066566A1 (en) * | 2006-09-14 | 2008-03-20 | Aichi Machine Industry Co., Ltd. | Gearwheel unit, transmission having gearwheel unit and gearwheel manufacturing method |
| CN201615202U (en) * | 2010-01-22 | 2010-10-27 | 黄文波 | Synchronous gear sleeve for front force adding direction reverser of motor tricycle |
| CN102059342A (en) * | 2010-12-09 | 2011-05-18 | 扬州保来得科技实业有限公司 | Manufacture method of special gear plate |
| CN202032012U (en) * | 2011-03-25 | 2011-11-09 | 重庆动霸机械制造有限公司 | Synchronous conversion clutch gear of power conversion device |
| CN102401109A (en) * | 2011-11-25 | 2012-04-04 | 扬州保来得科技实业有限公司 | Special powder metallurgy gear wheel and preparation method thereof |
| CN202228557U (en) * | 2011-09-15 | 2012-05-23 | 浙江迅达汽车部件有限公司 | Novel gear sleeve for car synchronizer |
-
2012
- 2012-06-15 CN CN2012101979852A patent/CN102705477A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080066566A1 (en) * | 2006-09-14 | 2008-03-20 | Aichi Machine Industry Co., Ltd. | Gearwheel unit, transmission having gearwheel unit and gearwheel manufacturing method |
| CN201615202U (en) * | 2010-01-22 | 2010-10-27 | 黄文波 | Synchronous gear sleeve for front force adding direction reverser of motor tricycle |
| CN102059342A (en) * | 2010-12-09 | 2011-05-18 | 扬州保来得科技实业有限公司 | Manufacture method of special gear plate |
| CN202032012U (en) * | 2011-03-25 | 2011-11-09 | 重庆动霸机械制造有限公司 | Synchronous conversion clutch gear of power conversion device |
| CN202228557U (en) * | 2011-09-15 | 2012-05-23 | 浙江迅达汽车部件有限公司 | Novel gear sleeve for car synchronizer |
| CN102401109A (en) * | 2011-11-25 | 2012-04-04 | 扬州保来得科技实业有限公司 | Special powder metallurgy gear wheel and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537673A (en) * | 2013-10-11 | 2014-01-29 | 芜湖市鸿坤汽车零部件有限公司 | Powder-metallurgy oil-pump adjusting gear ring and manufacturing method thereof |
| CN103464750A (en) * | 2013-10-12 | 2013-12-25 | 泰州市新诚新材料科技有限公司 | Manufacturing method of automobile ABS (acrylonitrile-butadiene-styrene) induction counting tooth ring |
| US11707786B2 (en) | 2020-04-17 | 2023-07-25 | PMG Indiana LLC | Apparatus and method for internal surface densification of powder metal articles |
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Application publication date: 20121003 |