CN109707838A - A kind of few teeth difference unsymmetric gear planetary transmission system - Google Patents
A kind of few teeth difference unsymmetric gear planetary transmission system Download PDFInfo
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- CN109707838A CN109707838A CN201910061922.6A CN201910061922A CN109707838A CN 109707838 A CN109707838 A CN 109707838A CN 201910061922 A CN201910061922 A CN 201910061922A CN 109707838 A CN109707838 A CN 109707838A
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- gear
- input shaft
- external gear
- bearing
- left outside
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Abstract
The invention discloses a kind of few teeth difference unsymmetric gear planetary transmission systems, it is characterized in that input shaft, output shaft is on same center line, input shaft is stage eccentric shaft, left outside gear is installed on input shaft, it is eccentric segment at the position of right external gear, internal gear and left outside gear in internal gear pair, right external gear engages simultaneously, internal gear pair and roller bearing form a geared linkage mechanism, input shaft rotation, internal gear is fixed, force left outside gear, right external gear is around internal tooth crop rotation planetary motion, left outside gear, the movement made by the input shaft of right external gear is reversed low speed spinning motion, by pivoted arm by left outside gear, the spinning motion of right external gear is transmitted to output shaft；Beneficial effect is drive system structure novelty, and stable drive, power density is high, and bearing capacity is strong, long service life, selects the train number of teeth as needed, so that it may very big transmission ratio is obtained under lesser volume.
Description
Technical field
The present invention relates to field of power machinery, more particularly to a kind of few teeth difference unsymmetric gear planetary transmission system.
Background technique
Machine driving is subjects of mechanical engineering one of core technology the most classical, and machine driven system is answered in industrial circle
With extremely wide, all occasions for having prime mover, which are almost required to use machine driven system, carries out speed change, realizes working machine
Speeds match completes the torsion of speedup drop or deceleration torque increase.
Planet-gear transmission is since big with transmission ratio, compact-sized, small in size, light-weight, transmission efficiency is high
And the advantages that large carrying capacity, in metallurgical machinery, handling machinery, engineering machinery, chemical machinery and textile machine etc.
Power transmission field is widely used.It is mentioned simultaneously because the characteristics of its multi-tooth meshing significantly facilitates averaging effect of errors
High transmission accuracy is also applied to mechanical transmission fields more and more widely in recent years.
In order to which the transmission ratio for solving currently available technology transmission system is small, power density is low, and the service life is short, and complete machine oscillation is big,
Problems, the present invention such as noise is big disclose a kind of few teeth difference unsymmetric gear planetary transmission system, have structure simple, transmission ratio
Greatly, the advantages that small in size, light weight, high transmission efficiency.Since gear pair uses unsymmetric gear, the tooth logarithm of carrying is contacted
It is more, therefore transmission system bearing capacity is strong, long service life.Structure of the invention is novel, transmission ratio is big, easily manufactured, both can be with
Effectively meet engineering actual demand, and can produce biggish economic benefit.
Summary of the invention
In order to overcome the shortcomings of on above-mentioned, the invention proposes a kind of few teeth difference unsymmetric gear planetary transmission systems, should
Drive system structure is novel, and bearing capacity is strong, and power density is high, and transmission efficiency is high, and compact can be under lesser volume
Realize biggish transmission ratio.
A kind of few teeth difference unsymmetric gear planetary transmission system, it is characterised in that input shaft, output shaft are in same
On heart line, input shaft is stage eccentric shaft, and being installed at the position of left outside gear, right external gear on input shaft is eccentric segment,
Internal gear engages simultaneously with left outside gear, right external gear in internal gear pair, and internal gear pair and roller bearing form a tooth
Link mechanism is taken turns, input shaft rotation, internal gear is fixed, and force left outside gear, right external gear around internal tooth crop rotation planetary motion,
The movement made by the input shaft of left outside gear, right external gear is reversed low speed spinning motion, by pivoted arm by left outside gear, right external tooth
The spinning motion of wheel is transmitted to output shaft；
Further, the number of teeth of left outside gear, right external gear and internal gear is close, the rotation of left outside gear, right external gear
Center line is not overlapped with the center line of output shaft, and left outside gear, right external gear, internal gear are unsymmetric gear, gear teeth two sides
Flank profil is asymmetrical tooth space profile, and the pressure angle of tooth of working surface and non-working surface flank profil is unequal, and work surface side flank profil takes big pressure
Angle, inoperative surface side flank profil take small pressure angle；
Further, be mounted on cover by bearing on the left of input shaft on the left of input shaft, input shaft left bearing inner ring and
Transition fit between input shaft, input shaft left side are equipped with radiator fan and hood, and hood is connected by bolt with cover, defeated
Enter and is mounted on pivoted arm on the right side of axis by bearing on the right side of input shaft；
Further, internal gear is rigidly connected by bolt and cover, body, is remained stationary, with left outside gear, right external tooth
It takes turns while engaging, left outside gear is mounted on input shaft by planet carrier left bearing, and right external gear is pacified by planet carrier right bearing
On input shaft；
Further, roller bearing right part in left side is mounted on left outside gear, and right part is mounted on the planet carrier of left side,
Roller bearing is assemblied on right external gear by left side planet carrier roll sleeve and right side planet carrier roll sleeve, and right side roller bearing is mounted on pivoted arm,
The revolution of right side roller bearing, drives pivoted arm, then transmit motion to output shaft by pivoted arm；
Further, it is mounted on body on the left of output shaft by output shaft left bearing and axle sleeve, output shaft right bearing is right
End is limited by snap ring, is mounted on body, and output shaft and right-hand end outer side of lid are equipped with sealing ring；
Further, the external gear on input shaft has lightening hole, and loss of weight central channel, the axis of cover is arranged on the outside of internal gear
Smaller to size, the axial dimension of body is larger, has loss of weight central channel on cover and body, both by bolt group with it is interior
Gear connection.
Compared with prior art, beneficial effects of the present invention are as follows: transmission principle is novel, and configuration is unique, and transmission ratio is big, function
Rate density is high, has boundless commercial promise, it can fill up the relevant technologies blank, and can produce biggish social benefit
With economic benefit.
Detailed description of the invention
Fig. 1 is a kind of few teeth difference unsymmetric gear planetary transmission system.
Fig. 2 is transmission system core component tomograph.
Fig. 3 is asymmetric tooth.
Fig. 4 is symmetrical tooth form.
In Fig. 1:
1, input shaft；2, hood；3, cover；
4, left outside gear；5, left side planet carrier roll sleeve；6, right external gear；
7, planet carrier right bearing；8, roller bearing；9, right side planet carrier roll sleeve；
10, input shaft right bearing；11, axle sleeve；12, body；
13, right side end cap；14, sealing ring；15, output shaft；
16, output shaft right bearing；17, output shaft left bearing；18, right side roller bearing；
19, pivoted arm；20, right side planet carrier；21, internal gear；
22 left side planet carriers；23, left side roller bearing；24, fan；
25, planet carrier left bearing；26, input shaft left bearing.
Specific embodiment
Embodiments of the present invention are described with reference to the drawings, the present invention is specifically described below with reference to mono- Fig. 4 of Fig. 1.
A kind of few teeth difference unsymmetric gear planetary transmission system, including input shaft 1, hood 2, cover 3, left outside gear 4, a left side
Skidding carrier roll sleeve 5, right external gear 6, planet carrier right bearing 7, roller bearing 8, right side planet carrier roll sleeve 9, input shaft right bearing 10, axis
Set 11, body 12, right side end cap 13, sealing ring 14, output shaft 15, output shaft right bearing 16, output shaft left bearing 17, right side rolling
Axis 18, pivoted arm 19, right side planet carrier 20, internal gear 21, left side planet carrier 22, left side roller bearing 23, fan 24, planet carrier left bearing
25, input shaft left bearing 26.
Cabinet main body is made of cover 3, body 12, right side end cap 13, is pacified on the left of input shaft 1 by input shaft left bearing 18
On body, radiator fan 25 and hood 2 are installed on the left of input shaft 1, hood 2 is connect by bolt with cover 3, input shaft
1 right side is mounted on pivoted arm by bearing 10 on the right side of input shaft.
Internal gear 21 is rigidly connected by bolt and cover 3, body 12, is remained stationary, with left outside gear 4, right external gear 6
It engages simultaneously, left outside gear 4 is mounted on input shaft 1 by planet carrier left bearing 25, and right external gear 6 passes through planet carrier right bearing
7 are mounted on input shaft 1.
Roller bearing 23 right part in left side is mounted on left outside gear 4, and right part is mounted on the planet carrier 22 of left side, roller bearing
8 are assemblied on right external gear 5 by left side planet carrier roll sleeve 5 and right side planet carrier roll sleeve 9, and right side roller bearing 19 is mounted on pivoted arm 19
On, right side roller bearing 18 revolves, and driving pivoted arm 19 rotates, then transmits motion to output shaft 15 by pivoted arm 19.
It is mounted on body 12 on the left of output shaft 15 by output shaft left bearing 17 and axle sleeve 11, output shaft right bearing 16 is right
End is limited by snap ring, is mounted on body 12, is equipped with sealing ring 14 on the outside of output shaft 15 and right side end cap 13.
The above is only better embodiment of the invention, not does any restrictions to the present invention, all according to this hair
Bright essence still falls within the protection of the technology of the present invention to any modification, change and equivalence changes made by embodiment of above
Within the scope of.
Claims (1)
1. a kind of few teeth difference unsymmetric gear planetary transmission system, it is characterised in that input shaft, output shaft are in same center
On line, input shaft is stage eccentric shaft, and being installed at the position of left outside gear, right external gear on input shaft is eccentric segment, interior
Internal gear engages simultaneously with left outside gear, right external gear in engaging tooth wheel set, and internal gear pair and roller bearing form a gear
Link mechanism, input shaft rotation, internal gear is fixed, and the movement made by the input shaft of left outside gear, right external gear is reversed
The spinning motion of left outside gear, right external gear is transmitted to output shaft by pivoted arm by low speed spinning motion；
The number of teeth of left outside gear, right external gear and internal gear is close, the rotation centerline and output shaft of left outside gear, right external gear
Center line be not overlapped, left outside gear, right external gear, internal gear are unsymmetric gear, and gear teeth two sides flank profil is asymmetric tooth
The pressure angle of exterior feature, tooth of working surface and non-working surface flank profil is unequal, and work surface side flank profil takes large pressure angle, inoperative surface side tooth
Exterior feature takes small pressure angle；
It is mounted on cover on the left of input shaft by bearing on the left of input shaft, transition between input shaft left bearing inner ring and input shaft
Cooperation, input shaft left side are equipped with radiator fan and hood, and hood is connected by bolt with cover, by defeated on the right side of input shaft
Enter bearing on the right side of axis to be mounted on pivoted arm；
Internal gear is rigidly connected by bolt and cover, body, is remained stationary, is engaged simultaneously with left outside gear, right external gear, left
External gear is mounted on input shaft by planet carrier left bearing, and right external gear is mounted on input shaft by planet carrier right bearing；
Left side roller bearing right part is mounted on left outside gear, and right part is mounted on the planet carrier of left side, and roller bearing passes through left side
Planet carrier roll sleeve and right side planet carrier roll sleeve are assemblied on right external gear, and right side roller bearing is mounted on pivoted arm, the revolution of right side roller bearing,
Pivoted arm is driven, then output shaft is transmitted motion to by pivoted arm；
It is mounted on body on the left of output shaft by output shaft left bearing and axle sleeve, output shaft right bearing right end is limited by snap ring
Position, is mounted on body, and output shaft and right-hand end outer side of lid are equipped with sealing ring；
External gear on input shaft has lightening hole, loss of weight central channel is arranged on the outside of internal gear, the axial dimension of cover is smaller, machine
The axial dimension of body is larger, has loss of weight central channel on cover and body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061922.6A CN109707838A (en) | 2019-01-18 | 2019-01-18 | A kind of few teeth difference unsymmetric gear planetary transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910061922.6A CN109707838A (en) | 2019-01-18 | 2019-01-18 | A kind of few teeth difference unsymmetric gear planetary transmission system |
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| Publication Number | Publication Date |
|---|---|
| CN109707838A true CN109707838A (en) | 2019-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910061922.6A Pending CN109707838A (en) | 2019-01-18 | 2019-01-18 | A kind of few teeth difference unsymmetric gear planetary transmission system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178135A (en) * | 2020-09-08 | 2021-01-05 | 大连理工大学 | Light-weight small-tooth-difference double-pressure-angle involute planetary gear reducer and assembling method |
| CN117803698A (en) * | 2024-03-01 | 2024-04-02 | 潍坊华夏拖拉机制造有限公司 | Final driving device for wheeled tractor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2911323Y (en) * | 2006-05-29 | 2007-06-13 | 高敬民 | Little gearing tolerance planetary speed reducer |
| CN200958560Y (en) * | 2006-06-12 | 2007-10-10 | 郑广和 | Coaxial gear-differential speed reducer |
| CN201269285Y (en) * | 2008-08-26 | 2009-07-08 | 比亚迪股份有限公司 | Translational gear transmission mechanism |
| CN201412480Y (en) * | 2009-06-05 | 2010-02-24 | 北京瑞德信通用机械设备制造有限公司 | Rod-type output speed reducer |
| CN210566052U (en) * | 2019-01-18 | 2020-05-19 | 天津工业大学 | Planetary differential speed reducer |
-
2019
- 2019-01-18 CN CN201910061922.6A patent/CN109707838A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2911323Y (en) * | 2006-05-29 | 2007-06-13 | 高敬民 | Little gearing tolerance planetary speed reducer |
| CN200958560Y (en) * | 2006-06-12 | 2007-10-10 | 郑广和 | Coaxial gear-differential speed reducer |
| CN201269285Y (en) * | 2008-08-26 | 2009-07-08 | 比亚迪股份有限公司 | Translational gear transmission mechanism |
| CN201412480Y (en) * | 2009-06-05 | 2010-02-24 | 北京瑞德信通用机械设备制造有限公司 | Rod-type output speed reducer |
| CN210566052U (en) * | 2019-01-18 | 2020-05-19 | 天津工业大学 | Planetary differential speed reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178135A (en) * | 2020-09-08 | 2021-01-05 | 大连理工大学 | Light-weight small-tooth-difference double-pressure-angle involute planetary gear reducer and assembling method |
| CN117803698A (en) * | 2024-03-01 | 2024-04-02 | 潍坊华夏拖拉机制造有限公司 | Final driving device for wheeled tractor |
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