CN106352024B - A kind of single eccentric short transmission chain retarder - Google Patents
A kind of single eccentric short transmission chain retarder Download PDFInfo
- Publication number
- CN106352024B CN106352024B CN201611052908.2A CN201611052908A CN106352024B CN 106352024 B CN106352024 B CN 106352024B CN 201611052908 A CN201611052908 A CN 201611052908A CN 106352024 B CN106352024 B CN 106352024B
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- gear
- external gear
- minor arc
- bearing
- ring gear
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention discloses a kind of single eccentric short transmission chain retarder, including fixed ontology, bearing holder (housing, cover), power input shaft, power output shaft and duplicate gear；The power input shaft includes that the positive axle portion at both ends and intermediate off-axis portion, the axle center in positive axle portion and off-axis portion are not overlapped, and the duplicate gear is sleeved in the off-axis portion of power input shaft by bearing three, and duplicate gear includes the first external gear and the second external gear；The position of corresponding first external gear is provided with the first ring gear on the fixed ontology, the position of corresponding second external gear is provided with the second ring gear on power output shaft, is Inside gear drive between the first external gear and the first ring gear and between the second external gear and the second ring gear.The present invention has many advantages, such as that structure is simple, transmission chain is short, transmission efficiency is high, stable drive, driving torque are big and reduction ratio range is wide.
Description
Technical field
The invention belongs to technical field of engineering machinery, are related to a kind of retarder, in particular to a kind of single eccentric short transmission chain
Retarder.
Background technique
Retarder is a kind of relatively accurate machinery, and the purpose using it is to reduce revolving speed, increases torque.Its type is numerous
More, model is different, and variety classes have different purposes.Gear reduction unit, worm reducer and row can be divided into according to actuation types
Star gear reduction unit；Single-stage and multi-stage speed reducer can be divided into according to transmission series difference；Cylinder Gear can be divided into according to gear shape
Wheel decelerator, cone gear reducer and circular cone-cylinder gear speed reducer；Expansion can be divided into again according to the arrangement form of transmission
Formula, shunt and coaxial reducer.
Retarder is widely used in robot, automobile and other industries, common deceleration as mechanically operated important component
Mechanism generallys use two different pitch wheels of diameter to realize and slow down.Retarder is in machine driven system at present
Extensive servo motor, for reduce revolving speed and increase torque, need with it is small in size, transmission chain is short, transmission efficiency is high and driving torque
Big retarder matches, and existing retarder has the deficiencies of transmission chain length, structure is complicated and volume is larger.
Summary of the invention
The purpose of the present invention is providing a kind of single eccentric short transmission chain retarder to solve above-mentioned the deficiencies in the prior art,
It is excellent that the present invention has that structure is simple, transmission chain is short, transmission efficiency is high, stable drive, driving torque are big and reduction ratio range is wide etc.
Point.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of single eccentric short transmission chain retarder, including it is solid
Determine ontology, bearing holder (housing, cover), power input shaft, power output shaft and duplicate gear；The bearing holder (housing, cover) is solid by bolt and fixed ontology
Fixed connection, by being rotatablely connected between bearing two and bearing holder (housing, cover), the outer ring of the bearing two is placed in bearing holder (housing, cover) power output shaft,
And be fixedly connected with the step of fixed ontology, the inner ring of bearing two is fixedly connected by bearing pressure ring with power output shaft；It is described
Power input shaft includes that the positive axle portion at both ends and intermediate off-axis portion, the axle center in positive axle portion and off-axis portion are not overlapped, power input
The positive axle portion in one end of axis is threaded through in the installation through-hole of fixed ontology, and passes through bearing four and fixed ontology rotation connection, power
The positive axle portion of the other end of input shaft is threaded through in the through-hole of power output shaft, and is connected by bearing one and power output shaft rotation
Connect, the duplicate gear is sleeved in the off-axis portion of power input shaft by bearing three, duplicate gear include the first external gear and
Second external gear is provided with positioning sleeve between the bearing one and bearing three；Corresponding first external gear on the fixed ontology
Position is provided with the first ring gear, and the position of corresponding second external gear is provided with the second ring gear on power output shaft, outside first
It between gear and the first ring gear and is Inside gear drive between the second external gear and the second ring gear, the first ring gear,
The modulus of second ring gear, the first external gear and the second external gear is identical, and the number of teeth is different.
As the further improvement of retarder of the present invention, single flank profil is by first ring gear and the second ring gear
One minor arc, the second minor arc and third minor arc successively connect, the second minor arc respectively with the first minor arc and the reversed phase of third minor arc
It is cut in the first point of contact and the second point of contact, the same radius of circle where the first minor arc and third minor arc, and the first minor arc and third minor arc
The center of circle of place circle is located on the ring gear reference circle of the first ring gear and the second ring gear, the center of circle position of circle where the second minor arc
In in the ring gear reference circle of the first ring gear and the second ring gear, the flank profil of adjacent teeth on the first ring gear and the second ring gear
Shape is just as two minor arcs of adjacent flank profil junction are located on the same circle；On first external gear and the second external gear
Single flank profil is successively connected by the 4th minor arc, the 5th minor arc and the 6th minor arc, the 5th minor arc respectively with the 4th minor arc and the
Six minor arcs are reversely tangential on third point of contact and the 4th point of contact, the same radius of circle where the 4th minor arc and the 6th minor arc, and the 4th is bad
The center of circle of circle is located on the external gear reference circle of the first external gear and the second external gear where arc and the 6th minor arc, the 5th minor arc institute
In the external gear reference circle that the round center of circle is located at the first external gear and the second external gear, on the first external gear and the second external gear
The profile geometry of adjacent teeth is identical, and two minor arcs of adjacent teeth flank profil junction are located on the same circle.
As the further improvement of retarder of the present invention, the bearing three is set as two, in the duplicate gear vestibule
Portion is provided with lug boss along entire circumferential direction, and described two bearings three are separately positioned on the two sides of the lug boss.
As the further improvement of retarder of the present invention, sealing is additionally provided between the power output shaft and bearing holder (housing, cover)
Circle.
As the further improvement of retarder of the present invention, the material selection polytetrafluoroethylene (PTFE) of the sealing ring.
Beneficial effect
1, between the first ring gear of fixation ontology of the invention and the first external gear of duplicate gear and power output
Internal messing between second ring gear of axis and the second external gear of duplicate gear forms two groups of internal gear pairs, fixed ontology
The first ring gear fix, when power input shaft input power, duplicate gear not only makees revolution and makees autobiography, drive power output shaft again
The rotation of the second ring gear, realize and slow down, the present invention only passes through two groups of internal gear pairs and single eccentric shaft and realizes deceleration purpose,
Therefore have many advantages, such as that structure is simple, transmission chain is short, stable drive and small volume；Due to using inside engaged gear auxiliary driving,
Cycloidal-pin gear speed reducer and worm reducer are corresponded to, transmission efficiency is higher；Due to using single eccentric shaft structure, relative to double
Eccentric shaft structure and more eccentric shaft structure, without in addition setting counterweight, and single eccentric shaft is more easily processed.
2, two groups of internal gear pairs provided by the invention, the first ring gear and the first external gear and the second ring gear and
The flank profil of second external gear is made of circular arc, and thickness at root of tooth is larger, and contact strength is high, and bearing capacity is strong；The number of teeth can be less,
Can at least it accomplish as five teeth；Ring gear and external gear full tooth engagement when gear operation, are essentially rolled between ring gear and external gear
Dynamic, transmission efficiency is high, and transmitting power is steady, and the way of contact rolled can effectively reduce impact, frictional noise；Ring gear and outer
The flank profil structure of gear is simple, and the difficulty of processing of easily controllable machining accuracy, gear is low, is conducive to promote and apply.
3, the bearing three is set as two, so that duplicate gear rotation is more steady, two bearings three are arranged in protrusion
Portion two sides, between each other without interference.
4, it is additionally provided with sealing ring between power output shaft and bearing holder (housing, cover), fills up the seam between bearing holder (housing, cover) and power output shaft
Gap prevents external dust from entering and internal grease outflow.
5, sealing ring uses polytetrafluoroethylene (PTFE), has the characteristics that low coefficient of friction, antiacid caustic corrosion and high temperature resistant, therefore can
Greatly extend the service life of sealing ring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of retarder embodiment of the present invention；
Fig. 2 is the first ring gear and the second ring gear flank profil structural schematic diagram of retarder embodiment of the present invention；
Fig. 3 is the first external gear and the second external gear flank profil structural schematic diagram of retarder embodiment of the present invention；
Fig. 4 is the first ring gear and the full tooth engagement schematic diagram of the first external gear of retarder embodiment of the present invention；
Fig. 5 is motion state schematic diagram of first external gear with respect to the first ring gear of retarder embodiment of the present invention；
Marked in the figure: 1, fixed ontology, 2, bearing holder (housing, cover), 3, sealing ring, 4, power output shaft, 5, positioning sleeve, 6, bearing one,
7, duplicate gear, 8, bearing two, 9, bearing three, 10, bearing four, 11, power input shaft, 12, bearing pressure ring, 101, first is bad
Arc, the 102, second minor arc, 103, third minor arc, the 104, first point of contact, the 105, second point of contact, 106, ring gear reference circle, 107,
4th minor arc, the 108, the 5th minor arc, the 109, the 6th minor arc, 110, third point of contact, the 111, the 4th point of contact, 112, external gear indexing
Circle, the 113, first ring gear, the 114, first external gear.
Specific embodiment
In order to which technical solution of the present invention and advantage is more clearly understood, with reference to the accompanying drawings and embodiments, to this hair
It is bright to be further elaborated.
As shown in the figure: the embodiment of the present invention discloses a kind of single eccentric short transmission chain retarder, including fixed ontology 1, axis
Bearing sleeve 2, power input shaft 11, power output shaft 4 and duplicate gear 7.
The bearing holder (housing, cover) 2 is fixedly connected by bolt with fixed ontology 1, and power output shaft 4 passes through bearing 28 and bearing holder (housing, cover)
It is rotatablely connected between 2, the outer ring of the bearing 28 is placed in bearing holder (housing, cover) 2, and is fixedly connected with the step of fixed ontology 1, bearing
28 inner ring is fixedly connected by bearing pressure ring 12 with power output shaft 4, and setting bearing holder (housing, cover) 2 is convenient for the disassembly and assembly of bearing,
Adjustable elasticity so that the machining accuracy of component is relaxed, and can overcome the axial float of bearing.
The axle center in positive axle portion and intermediate off-axis portion of the power input shaft 11 including both ends, positive axle portion and off-axis portion is not
It is overlapped, the positive axle portion in one end of power input shaft 11 is threaded through in the installation through-hole of fixed ontology 1, and by bearing 4 10 and admittedly
Determine the rotation connection of ontology 1, the positive axle portion of the other end of power input shaft 11 is threaded through in the through-hole of power output shaft 4, and passes through axis
It holds 1 to be rotatablely connected with power output shaft 4, the duplicate gear 7 is sleeved on the off-axis portion of power input shaft 11 by bearing 39
On, the bearing 39 is set as two, so that the rotation of duplicate gear 7 is more steady, along whole in the middle part of 7 vestibule of duplicate gear
A circumferential direction is provided with lug boss, and described two bearings 39 are separately positioned on the two sides of the lug boss, between each other without interference.It is double
Joining gear 7 includes the first external gear 114 and the second external gear, is provided with positioning sleeve 5 between the bearing 1 and bearing 39.
The position of corresponding first external gear 114 is provided with the first ring gear 113, power output shaft 4 on the fixed ontology 1
The position of upper the second external gear of correspondence is provided with the second ring gear, between the first external gear 114 and the first ring gear 113 and
It is Inside gear drive, the first ring gear 113, the second ring gear, the first external gear 114 between two external gears and the second ring gear
Identical with the modulus of the second external gear, the number of teeth is different.
It is additionally provided with sealing ring 3 between power output shaft 11 and bearing holder (housing, cover) 2, fills up between bearing holder (housing, cover) and power output shaft
Gap prevents external dust from entering and uses polytetrafluoroethylene (PTFE) material with internal grease outflow, sealing ring 3, low with coefficient of friction,
The features such as antiacid caustic corrosion and high temperature resistant, therefore can greatly extend the service life of sealing ring.
Single flank profil is by the first minor arc 101, the second minor arc 102 and on first ring gear 113 and the second ring gear
Three minor arcs 103 successively connect, and the second minor arc 102 is reversely tangential on first with the first minor arc 101 and third minor arc 103 respectively
The same radius of circle where point of contact 104 and the second point of contact 105, the first minor arc 101 and third minor arc 103, and the first minor arc 101 and the
The center of circle of circle is located on the ring gear reference circle 106 of the first ring gear 113 and the second ring gear where three minor arcs 103, and second is bad
The center of circle of circle is located in the ring gear reference circle 106 of the first ring gear 113 and the second ring gear where arc 102, the first ring gear
113 and second adjacent teeth on ring gear profile geometry just as two minor arcs of adjacent flank profil junction are located on the same circle；
Single flank profil is by the 4th minor arc 107, the 5th minor arc 108 and the 6th minor arc 109 on first external gear 114 and the second external gear
Successively connect, the 5th minor arc 108 be reversely tangential on the 4th minor arc 107 and the 6th minor arc 109 respectively third point of contact 110 and
The same radius of circle where 4th point of contact 111, the 4th minor arc 107 and the 6th minor arc 109, and the 4th minor arc 107 and the 6th minor arc 109
The center of circle of place circle is located on the external gear reference circle 112 of the first external gear 114 and the second external gear, where the 5th minor arc 108
The round center of circle is located in the external gear reference circle 112 of the first external gear 114 and the second external gear, the first external gear 114 and second
The profile geometry of adjacent teeth is identical on external gear, and two minor arcs of adjacent teeth flank profil junction are located on the same circle.
Two groups of second ring gear and the second external gear and the first ring gear 113 and the first external gear 114 composition of the invention
The gear-profile shape and engagement system of internal gear pair identical (the second ring gear and the full tooth engagement signal of the second external gear
Figure does not provide).
Two groups of inside engaged gear groups provided in an embodiment of the present invention, the first ring gear 113 and the first external gear 114 and
The flank profil of two ring gears and the second external gear is made of circular arc, and thickness at root of tooth is larger, and contact strength is high, and bearing capacity is strong；Tooth
Number can be less, can at least accomplish as five teeth；Ring gear and the full tooth engagement of external gear, when gear operation, ring gear and external tooth
It is essentially rolled between wheel, transmission efficiency is high, and transmitting power is steady, and the way of contact rolled can effectively reduce impact, friction is made an uproar
Sound；The flank profil structure of ring gear and external gear is simple, and the difficulty of processing of easily controllable machining accuracy, gear is low, is conducive to promote
Using.
The working principle of the embodiment of the present invention is as follows: the first of the first ring gear 113 of fixed ontology 1 and duplicate gear 7
Between external gear 114 and the second external gear internal messing of the second ring gear of power output shaft 4 and duplicate gear 7, composition two
First ring gear 113 of group internal gear pair, fixed ontology 1 is fixed, when 11 input power of power input shaft, duplicate gear 7
Not only make to revolve but also make autobiography, drive the second ring gear rotation of power output shaft 4, realize deceleration purpose.
Retarder of the present invention only passes through two groups of internal gear pairs and single eccentric shaft realizes deceleration purpose, therefore has structure
Simply, transmission chain is short, stable drive and the advantages that small volume；Due to using inside engaged gear auxiliary driving, cycloid is corresponded to
Pinwheel reducer and worm reducer, transmission efficiency are higher；Due to using single eccentric shaft structure, relative to double-eccentric shaft structure and
More eccentric shaft structure, without in addition setting counterweight, and single eccentric shaft is more easily processed.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (4)
1. a kind of single eccentric short transmission chain retarder, it is characterised in that: including fixed ontology (1), bearing holder (housing, cover) (2), power input
Axis (11), power output shaft (4) and duplicate gear (7)；
The bearing holder (housing, cover) (2) is fixedly connected by bolt with fixed ontology (1), and power output shaft (4) passes through bearing two (8) and axis
Bearing sleeve is rotatablely connected between (2), and the outer ring of the bearing two (8) is placed in bearing holder (housing, cover) (2), and the step with fixed ontology (1)
It is fixedly connected, the inner ring of bearing two (8) is fixedly connected by bearing pressure ring (12) with power output shaft (4)；
The power input shaft (11) includes that the positive axle portion at both ends and intermediate off-axis portion, the axle center in positive axle portion and off-axis portion do not weigh
Close, the positive axle portion in one end of power input shaft (11) is threaded through in the installation through-hole of fixed ontology (1), and by bearing four (10) with
Fixed ontology (1) rotation connection, the positive axle portion of the other end of power input shaft (11) are threaded through in the through-hole of power output shaft (4),
And be rotatablely connected by bearing one (6) and power output shaft (4), the duplicate gear (7) is sleeved on power by bearing three (9)
In the off-axis portion of input shaft (11), duplicate gear (7) includes the first external gear (114) and the second external gear, the bearing one (6)
Positioning sleeve (5) are provided between bearing three (9)；
The position of corresponding first external gear (114) is provided with the first ring gear (113), power output on the fixed ontology (1)
The position of corresponding second external gear is provided with the second ring gear on axis (4), the first external gear (114) and the first ring gear (113)
Between and the second external gear and the second ring gear between be Inside gear drive, the first ring gear (113), the second ring gear,
First external gear (114) is identical with the modulus of the second external gear, and the number of teeth is different；
Ring gear and the full tooth engagement of external gear, single flank profil is bad by first on first ring gear (113) and the second ring gear
Arc (101), the second minor arc (102) and third minor arc (103) successively connect, the second minor arc (102) respectively with the first minor arc
(101) and third minor arc (103) is reversely tangential on the first point of contact (104) and the second point of contact (105), the first minor arc (101) and the
The same radius of circle where three minor arcs (103), and the center of circle of circle where the first minor arc (101) and third minor arc (103) is located at first
On the ring gear reference circle (106) of ring gear (113) and the second ring gear, the center of circle of circle where the second minor arc (102) is located at the
In the ring gear reference circle (106) of one ring gear (113) and the second ring gear, on the first ring gear (113) and the second ring gear
The profile geometry of adjacent teeth is just as two minor arcs of adjacent flank profil junction are located on the same circle；First external gear
(114) single flank profil is by the 4th minor arc (107), the 5th minor arc (108) and the 6th minor arc (109) successively phase and on the second external gear
It connects, the 5th minor arc (108) is reversely tangential on third point of contact (110) with the 4th minor arc (107) and the 6th minor arc (109) respectively
With the 4th point of contact (111), the same radius of circle where the 4th minor arc (107) and the 6th minor arc (109), and the 4th minor arc (107) and
The center of circle of circle is located at the external gear reference circle (112) of the first external gear (114) and the second external gear where 6th minor arc (109)
On, the center of circle of circle is located at the external gear reference circle of the first external gear (114) and the second external gear where the 5th minor arc (108)
(112) in, the first external gear (114) is identical with the profile geometry of adjacent teeth on the second external gear, adjacent teeth flank profil junction
Two minor arcs are located on the same circle.
2. single eccentric short transmission chain retarder as described in claim 1, it is characterised in that: the bearing three (9) is set as two
It is a, entire circumferential direction is provided with lug boss in the middle part of duplicate gear (7) vestibule, described two bearings three (9) are separately positioned on
The two sides of the lug boss.
3. single eccentric short transmission chain retarder as described in claim 1, it is characterised in that: the power output shaft (4) and axis
Sealing ring (3) are additionally provided between bearing sleeve (2).
4. single eccentric short transmission chain retarder as claimed in claim 3, it is characterised in that: the material of the sealing ring (3) is selected
Use polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052908.2A CN106352024B (en) | 2016-11-25 | 2016-11-25 | A kind of single eccentric short transmission chain retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052908.2A CN106352024B (en) | 2016-11-25 | 2016-11-25 | A kind of single eccentric short transmission chain retarder |
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| Publication Number | Publication Date |
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| CN106352024A CN106352024A (en) | 2017-01-25 |
| CN106352024B true CN106352024B (en) | 2019-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611052908.2A Active CN106352024B (en) | 2016-11-25 | 2016-11-25 | A kind of single eccentric short transmission chain retarder |
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| CN (1) | CN106352024B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838139A (en) * | 2017-04-13 | 2017-06-13 | 盐城奥凯特种机械有限公司 | A kind of eccentric rolling formula difference tooth precision speed reduction device |
| CN108916355A (en) * | 2018-09-25 | 2018-11-30 | 山东帅克机械制造股份有限公司 | A kind of robot few teeth difference surmounts harmonic speed reducer device |
| CN109268452A (en) * | 2018-11-29 | 2019-01-25 | 齐中才 | Double cycloid differential speed reducer |
| CN109356999A (en) * | 2018-12-12 | 2019-02-19 | 中核新科（天津） 精密机械制造有限公司 | The close roller shafting of retarder high precision overloading |
| CN109356998A (en) * | 2018-12-12 | 2019-02-19 | 中核新科（天津） 精密机械制造有限公司 | The close roller shafting of retarder heavy duty |
| CN109386590A (en) * | 2018-12-12 | 2019-02-26 | 中核新科（天津） 精密机械制造有限公司 | Retarder high precision dense bead shafting |
| CN110107656B (en) * | 2019-05-28 | 2024-07-09 | 保定启晨传动科技有限公司 | Fixed-shaft speed changer |
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| CN206175573U (en) * | 2016-11-25 | 2017-05-17 | 许昌学院 | Single eccentric short driving chain reduction gear |
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| CN100434753C (en) * | 2007-06-08 | 2008-11-19 | 重庆大学 | Pure rolling speed reducer |
| KR101608306B1 (en) * | 2014-06-27 | 2016-04-26 | 주식회사 액셜스페이스 | A harmonic speed reducer including gear tooth and a supporting part combined with the gear tooth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044668U (en) * | 1988-03-06 | 1989-09-20 | 季爱国 | Gear with circum-scribed teeth |
| CN2061228U (en) * | 1989-07-19 | 1990-08-29 | 季爱国 | Circumscribed gear planetary reducer |
| CN104235272A (en) * | 2013-06-10 | 2014-12-24 | 廖承平 | Switching mechanism |
| CN105473891A (en) * | 2013-08-12 | 2016-04-06 | 三宝Motors株式会社 | Reducer |
| CN103994184A (en) * | 2014-03-26 | 2014-08-20 | 重庆大学 | Closed cycloid precision gear reducer |
| CN105952848A (en) * | 2016-05-16 | 2016-09-21 | 李敏 | Double-eccentric-shaft small-tooth-difference NN type planetary reducer |
| CN206175573U (en) * | 2016-11-25 | 2017-05-17 | 许昌学院 | Single eccentric short driving chain reduction gear |
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| Publication number | Publication date |
|---|---|
| CN106352024A (en) | 2017-01-25 |
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