CN1096573A - Tooth profile of helical gear with very few teeth - Google Patents

Tooth profile of helical gear with very few teeth Download PDF

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Publication number
CN1096573A
CN1096573A CN 93108361 CN93108361A CN1096573A CN 1096573 A CN1096573 A CN 1096573A CN 93108361 CN93108361 CN 93108361 CN 93108361 A CN93108361 A CN 93108361A CN 1096573 A CN1096573 A CN 1096573A
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CN
China
Prior art keywords
helical gear
circular arc
few teeth
pair
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 93108361
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Chinese (zh)
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CN1037466C (en
Inventor
刘延林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Publication date
Application filed by Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN93108361A priority Critical patent/CN1037466C/en
Publication of CN1096573A publication Critical patent/CN1096573A/en
Application granted granted Critical
Publication of CN1037466C publication Critical patent/CN1037466C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Measuring Volume Flow (AREA)

Abstract

The present invention relates to a kind of gear transmission, be specially adapted to helical gear with very few teeth.Its end pick exterior feature is the smoothed curve that is made of round envelope, circular arc and prolate epicycloid.Gear pair is that physical dimension is identical, and rotation direction is opposite.Have a pair of helical gear of above-mentioned flank profil, its working flank is a conjugate surface.

Description

Tooth profile of helical gear with very few teeth
The present invention relates to a kind of gear transmission.
The work of developing and be applicable to the material conveying, increase the helical gear with very few teeth pair of (subtracting) pressure, metering use occasion has at present become the very interested problem of people, and the research of tooth profile of helical gear is the most basic content.Japan's disclosed flank profil of clear 58-6131 patent is a kind of by the flank profil that cycloid, involute and prolate epicycloid constituted, and the enforcement of this patent also successfully is applied to positive displacement flowmeter.But the involute of this flank profil and the intersection point of prolate epicycloid are singular point, and in the running, singular point all is in engagement in the quite a while.
The present invention provides a kind of helical gear with very few teeth end pick exterior feature that is made of envelope, circular arc and the prolate epicycloid of circle for the shortcoming that overcomes above-mentioned prior art existence.
The present invention implements by following technical measures, and it constitutes smoothed curve by envelope a-b, circular arc b-c, the prolate epicycloid c-d of circle, and d-f is the tooth root circular arc, and e-a is the tooth top circular arc, and the b point is on standard pitch circle.Wherein circular arc b-c and prolate epicycloid c-d tangent (no singular point).Physical dimension is identical, and rotation direction is opposite, has a pair of helical gear of above-mentioned flank profil, and its working flank is a conjugate surface.The meshing relation of wide each section curve of helical gear pair end pick of the present invention as shown in Figure 2.1 and 1' be respectively the pitch circle of helical gear O and helical gear O', in running, pitch circle 1 is made relative pure rolling with 1', circular arc b-c meshes with the envelope a'-b' conjugation of circle simultaneously, a moves along prolate epicycloid c'-d', and circular arc b'-c' meshes with the envelope a-b conjugation of circle, and a' moves along prolate epicycloid c-d.
The present invention has the following advantages: (one) no singular point, meshing performance is good, and (two) are convenient to processing, and (three) are particularly suitable for making bigbore device, and compact structure, (4) realize dynamic balancing easily, the balance that therefore turns round, pulsating movement free, noise is low, (5) use occasion is wide, can be applicable to such as materials such as rotary compressor, vacuum pump, positive displacement flowmeter, fluid-flow pumps to carry, and need increase (subtracting) and press, measures occasion
Description of drawings is as follows:
Fig. 1 is an end pick profile of the present invention.
Fig. 2 is meshing relation figure.

Claims (1)

1, a kind of helical gear with very few teeth end pick exterior feature, it is characterized by it and constitute smoothed curve (no singular point) by round envelope a-b, circular arc b-c, prolate epicycloid c-d, d-f is the tooth root circular arc, e-a is the tooth top circular arc, the b point on standard pitch circle 1, wherein circular arc b-c and prolate epicycloid c-d tangent (no singular point), its gear pair is that physical dimension is identical, rotation direction is opposite, has a pair of helical gear of above-mentioned flank profil, and its working flank is a conjugate surface.
CN93108361A 1993-07-15 1993-07-15 Tooth profile of helical gear with very few teeth Expired - Fee Related CN1037466C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN93108361A CN1037466C (en) 1993-07-15 1993-07-15 Tooth profile of helical gear with very few teeth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN93108361A CN1037466C (en) 1993-07-15 1993-07-15 Tooth profile of helical gear with very few teeth

Publications (2)

Publication Number Publication Date
CN1096573A true CN1096573A (en) 1994-12-21
CN1037466C CN1037466C (en) 1998-02-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN93108361A Expired - Fee Related CN1037466C (en) 1993-07-15 1993-07-15 Tooth profile of helical gear with very few teeth

Country Status (1)

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CN (1) CN1037466C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1070595C (en) * 1996-01-02 2001-09-05 株式会社椭圆 Helical gear
WO2008011764A1 (en) * 2006-07-21 2008-01-31 Hong Jiang A kind of gear pair for power transmission in speed increaser or reducer and its forming method
CN102330805A (en) * 2011-11-07 2012-01-25 上海师范大学 Novel straight-tooth bevel gear
CN101709729B (en) * 2009-10-10 2012-07-04 镇江液压件厂有限责任公司 Cycloidal engagement pair with uniform-gap engagement of full hydraulic steering gear and processing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101504054B (en) * 2008-11-18 2011-04-20 无锡麦克络微电机有限公司 Transmission gear of automobile instrument motor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1537930A (en) * 1923-01-22 1925-05-12 Signal Gmbh Sound receiver, particularly for receiving sound waves in liquids
US4053263A (en) * 1973-06-27 1977-10-11 Joy Manufacturing Company Screw rotor machine rotors and method of making
JPS6042359B2 (en) * 1979-09-14 1985-09-21 株式会社日立製作所 screw rotor
US4644814A (en) * 1985-07-22 1987-02-24 Rouverol William S Wide-angle gearing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1070595C (en) * 1996-01-02 2001-09-05 株式会社椭圆 Helical gear
WO2008011764A1 (en) * 2006-07-21 2008-01-31 Hong Jiang A kind of gear pair for power transmission in speed increaser or reducer and its forming method
US8020464B2 (en) 2006-07-21 2011-09-20 Hong Jiang Gear pairs for power transmission in speed increaser or reducer and methods of forming the same
CN101709729B (en) * 2009-10-10 2012-07-04 镇江液压件厂有限责任公司 Cycloidal engagement pair with uniform-gap engagement of full hydraulic steering gear and processing method thereof
CN102330805A (en) * 2011-11-07 2012-01-25 上海师范大学 Novel straight-tooth bevel gear
CN102330805B (en) * 2011-11-07 2014-04-02 上海师范大学 Straight-tooth bevel gear

Also Published As

Publication number Publication date
CN1037466C (en) 1998-02-18

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