CN201679932U - Planetary gear - Google Patents

Planetary gear Download PDF

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Publication number
CN201679932U
CN201679932U CN201020189984XU CN201020189984U CN201679932U CN 201679932 U CN201679932 U CN 201679932U CN 201020189984X U CN201020189984X U CN 201020189984XU CN 201020189984 U CN201020189984 U CN 201020189984U CN 201679932 U CN201679932 U CN 201679932U
Authority
CN
China
Prior art keywords
planetary gear
pressure angle
utility
model
planetary pinion
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.)
Expired - Fee Related
Application number
CN201020189984XU
Other languages
Chinese (zh)
Inventor
李财华
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.)
BENGBU PLANETARY ENGINEERING MACHINERY Co Ltd
Original Assignee
BENGBU PLANETARY ENGINEERING MACHINERY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BENGBU PLANETARY ENGINEERING MACHINERY Co Ltd filed Critical BENGBU PLANETARY ENGINEERING MACHINERY Co Ltd
Priority to CN201020189984XU priority Critical patent/CN201679932U/en
Application granted granted Critical
Publication of CN201679932U publication Critical patent/CN201679932U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a planetary gear which has the pressure angle of 26.5-27.5 degrees. Compared with the existing planetary gear with the pressure angle of 20 degrees, the planetary gear leads the pitch circle and the root of tooth to be thickened under the condition of the same modulus and specification, has high mechanical strength of tooth part, and improves the bending resistance, the torsional strength and the fatigue resistance of the tooth part. The planetary gear has more reasonable pressure angle, good mechanical strength and long service life.

Description

A kind of planetary pinion
Technical field
The utility model relates to a kind of gear, specifically a kind of planetary pinion.
Background technique
The pressure angle of gear is more little, and transmission efficiency is high more, but the mechanical strength of tooth portion is poor more; Pressure angle is big more, and transmission efficiency is low more, but the mechanical strength of tooth portion is high more.The pressure angle of existing metric gears is 20 °, some special pressure angles is also arranged between 20～25 °.The existing planetary pressure angle that is used for planet wheel decelerator is 20 °, the planetary pinion in planet wheel decelerator, pressure angle adopts 20 °, though transmission efficiency is better, the shortcoming that exists is: in use planetary pinion forms Undercutting Phenomenon easily; Planetary bending resistance and impact resistance a little less than, working life is shorter.
The model utility content
The purpose of this utility model is to provide a kind of planetary pinion, this planetary pitch circle and tooth root thickening, the mechanical strength height of tooth portion.
For achieving the above object, the utility model adopts following scheme: a kind of planetary pinion, the pressure angle of this gear are 26.5～27.5 °.It is preferable that the pressure angle of this gear is 27 °.
By such scheme as seen, the planetary pinion that the utility model provides and existing pressure angle are that 20 ° planetary pinion is compared, under the situation of same modulus, same specification, this planetary pitch circle and tooth root obtain thickening, the mechanical strength height of tooth portion, the bending resistance of tooth portion, ability antitorque, antifatigue are improved.
The planetary pressure angle that the utility model provides is more reasonable, and its mechanical strength is good, long service life.
Description of drawings
Accompanying drawing is the utility model one embodiment's a structural representation.
Embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing.
Referring to accompanying drawing
The formation of the planetary pinion 1 that the utility model provides is identical with existing planetary pinion, and it is an involute cylindrical gear.Planetary pinion that the utility model provides 1 planetaryly is not both with existing, and the pressure angle of this planetary pinion 1 is 27 °.In the accompanying drawing, what double dot dash line was illustrated is that existing same modulus, same specification pressure angle are the profile of 20 ° planetary pinion 2.By the silhouette contrast of planetary pinion 1 and planetary pinion 2 as seen, the pitch circle of the planetary pinion 1 that the utility model provides and tooth root obtain thickening, under the situation of transmitting same torque, the planetary bending resistance that the utility model provides, ability antitorque, antifatigue improve about 15%.

Claims (2)

1. planetary pinion, it is characterized in that: the pressure angle of this gear is 26.5～27.5 °.
2. a kind of planetary pinion according to claim 1 is characterized in that: the pressure angle of this gear is 27 °.
CN201020189984XU 2010-05-14 2010-05-14 Planetary gear Expired - Fee Related CN201679932U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020189984XU CN201679932U (en) 2010-05-14 2010-05-14 Planetary gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020189984XU CN201679932U (en) 2010-05-14 2010-05-14 Planetary gear

Publications (1)

Publication Number Publication Date
CN201679932U true CN201679932U (en) 2010-12-22

Family

ID=43344976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020189984XU Expired - Fee Related CN201679932U (en) 2010-05-14 2010-05-14 Planetary gear

Country Status (1)

Country Link
CN (1) CN201679932U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307252A (en) * 2013-06-27 2013-09-18 江苏赫夫特齿轮制造有限公司 Planetary gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307252A (en) * 2013-06-27 2013-09-18 江苏赫夫特齿轮制造有限公司 Planetary gear

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Planet gear shaft and process method

Effective date of registration: 20130709

Granted publication date: 20101222

Pledgee: Bengbu financing guarantee Group Co., Ltd.

Pledgor: Bengbu Planetary Engineering Machinery Co., Ltd.

Registration number: 2013990000438

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20140918

Granted publication date: 20101222

Pledgee: Bengbu financing guarantee Group Co., Ltd.

Pledgor: Bengbu Planetary Engineering Machinery Co., Ltd.

Registration number: 2013990000438

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Planet gear shaft and process method

Effective date of registration: 20140919

Granted publication date: 20101222

Pledgee: Bengbu financing guarantee Group Co., Ltd.

Pledgor: Bengbu Planetary Engineering Machinery Co., Ltd.

Registration number: 2014990000774

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20150924

Granted publication date: 20101222

Pledgee: Bengbu financing guarantee Group Co., Ltd.

Pledgor: Bengbu Planetary Engineering Machinery Co., Ltd.

Registration number: 2014990000774

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Planet gear shaft and process method

Effective date of registration: 20151026

Granted publication date: 20101222

Pledgee: Bengbu high tech SME financing Company Limited by Guarantee

Pledgor: Bengbu Planetary Engineering Machinery Co., Ltd.

Registration number: 2015990000923

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20170301

Granted publication date: 20101222

Pledgee: Bengbu high tech SME financing Company Limited by Guarantee

Pledgor: Bengbu Planetary Engineering Machinery Co., Ltd.

Registration number: 2015990000923

PC01 Cancellation of the registration of the contract for pledge of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101222

Termination date: 20170514

CF01 Termination of patent right due to non-payment of annual fee