CN101363516A - Circular mobile tooth and small tooth difference variable-speed drive device - Google Patents
Circular mobile tooth and small tooth difference variable-speed drive device Download PDFInfo
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- CN101363516A CN101363516A CNA200810196624XA CN200810196624A CN101363516A CN 101363516 A CN101363516 A CN 101363516A CN A200810196624X A CNA200810196624X A CN A200810196624XA CN 200810196624 A CN200810196624 A CN 200810196624A CN 101363516 A CN101363516 A CN 101363516A
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Abstract
The invention discloses a circular oscillating tooth variable speed driving device with small teeth difference, consisting of an outer ring, a bearing pack, a driving ring, driving ring oscillating teeth, long oscillating teeth, short oscillating teeth, a ring gear, an eccentric shaft, a bearing, a rotary arm bearing, an eccentric bearing, a pin hole end cap, a pin tooth sleeve, a counter balance and a load balancing ring. In the driving device, the driving ring and the ring gear are meshed with small teeth difference, the meshed gear form is a cylindrical surface which can replace the traditional involute or cycloid, and the cylinder can rotate freely for convex-concave matching; a hole-pin type force transferring mechanism is adopted, a pin hole disk is arranged at the side and is integrated with the end cap, pins are selected from a plurality of cylindrical oscillating teeth and the pins and the teeth are integrated; the driving ring is an output mechanism. The whole shape of compact structure can carry out constant ratio variable transmission between input and output as a common rolling bearing can.
Description
Technical field
The present invention relates to few tooth difference transmission mechanism, particularly a kind of circular mobile tooth and small tooth difference variable-speed drive device.
Background technique
The present invention be directed to that planetary drive with small teeth difference proposes, the type of planetary drive with small teeth difference is a lot, existing main structure form roughly is divided into involute gear planetary drive with small teeth difference, cycloid planetary drive with small teeth difference, mobile tooth and small tooth difference Gear Planet Transmission etc., and still in development, constantly the someone designs and proposes new structure type.
Involute gear planetary drive with small teeth difference gear range in theory is very wide, and transmission efficiency was very low when velocity ratio was very big but practicality is taken in, so present this transmission is used for the small-power transmission more.
Cycloid planetary drive with small teeth difference accuracy of manufacturing requires high, needs special process equipment, the processing charges costliness, and also having weak link is that stressed big life-span of rotary arm bearing is low, adopts traditional pin output mechanism, structure is relatively backward, can't realize high-power transmission.
The mobile tooth and small tooth difference transmission is a kind of type of belt drive that is different from traditional gear transmission notion.In traditional gear transmission, tooth and wheel are processed as one, and are the dead teeth that does not have relative movement between the two.Oscillating Tooth Gear Reducer has then adopted the gear teeth of mobilizable tooth as planet wheel, and promptly oscillating tooth can be done relative movement between planet wheel and the oscillating tooth.Oscillating Tooth Gear Reducer is a kind of mechanical transmission that is used for transmitting with the between centers rotation motion, because the geometrical shape of oscillating tooth is generally simple cylindrical body, be easy to processing and can guarantee precision, thereby the processing technology of main parts size is also fairly simple.In addition, because of each main driving parts mainly bears pressure, not fragile so intensity is high.On the whole, the mobile tooth and small tooth difference transmission has compact structure, gear range is wide, bearing capacity is big, the transmission efficiency advantages of higher, and not outstanding especially weak link, so it is once the extensive attention that the scientific worker occurs having caused.China researcher has carried out abundant research to the mobile tooth and small tooth difference transmission, thereby propose and developed the novel mobile tooth and small tooth difference drive mechanism of many kinds, variable speed transmission bearing (CN85200923U), roller transmission mechanism, raceway speed reducer, osculating circle Oscillating Tooth Gear Reducer, the oscillating tooth harmonic wave speed reducing machine, the rotation teeth-adjustable reducer, movable sleeve tooth gearing with small teeth differenc, wobble gear speed reducer etc.In these teeth-adjustable reducers, push-rod oscillating tooth transmission and cylinder (steel ball) Oscillating Tooth Gear Reducer is the typical structure of developing the earliest, and the teeth-adjustable reducer that has has formed certain industrial capacity.
CN85200923U discloses a kind of variable speed transmission bearing, it is the push-rod oscillating tooth transmission typical structure of developing the earliest, integrate the supporting role of rolling bearing and the speed changing function of gearbox, can replace the cycloidal-pin wheel retarder in many cases, cylinder gear speed reducer and worm speed reducer.But owing to be subjected to the precision of standard rolling bearing, the constraint of the restriction in load rating capacity and retainer life-span and processing eccentric shaft technological level, the tolerance of throw of eccentric has responsive influence to the sideshake Changing Pattern that guarantees conjugate tooth profile, be directly connected to the kinematic accuracy of Oscillating Tooth Gear Reducer and the raising of transmission performance, the shock wave device of forming by standard rolling bearing and eccentric shaft, in precision, all there are many problems in aspect such as performance and life-span, can not satisfy the requirement of high-performance transmission component-push-rod oscillating tooth transmission key technology fully, thereby limited the further raising of teeth-adjustable reducer transmission accuracy and meshing performance, push-rod oscillating tooth and radially be sliding pair between guide groove, its wear problem, the transmission efficiency of raising push-rod oscillating tooth transmission and the key in life-span have been become, so exist bearing capacity low, general input power is no more than 30kW, needs the high inner curve profile of requirement on machining accuracy profile of tooth simultaneously.
It is bigger that CN2531173Y has disclosed a kind of rotary arm bearing diameter, and the also bigger circular mobile tooth planetary reducer of bearing pin distribution circle diameter of output mechanism, but exist the output mechanism required precision higher, heating value is big, bearing capacity is low, makes problems such as keeping in repair comparatively difficulty.
Summary of the invention
The present invention puts in view of the above problems and makes, its purpose is to provide a kind of circular mobile tooth and small tooth difference variable-speed drive device, when not having common planetary mechanism, do not need high involute of requirement on machining accuracy or inner curve profile profile of tooth realizing the bigger transmission of single-stage driving; Further improve the transmission capacity and the efficient of hole pin force transferring structure; Increase the rotary arm bearing diameter and improve its bearing capacity; Compact structure is made easy to maintenance; Can adopt fit to become the variable speed drive of general rolling bearing, thereby provide possibility for replacing the universal component transmission case with standard piece.
Technological scheme of the present invention is:
To achieve these goals, according to major character of the present invention, a kind of circular mobile tooth and small tooth difference variable-speed drive device is provided, this device comprises outer ring, bearing pack, transmission circle, transmission circle oscillating tooth, long-term job tooth, short oscillating tooth, ring gear, eccentric shaft, bearing, rotary arm bearing, capacity eccentric bearing, pin-and-hole end cap, pin tooth cover, equilibrium block, all carries ring.
Transmission circle and ring gear adopt few tooth difference engagement, and the profile of tooth that is meshed is the cylndrical surface, replaces traditional involute, cycloid, but and the cylindrical so tooth be split, can rotate relatively freely the convex-concave cooperation.
Adopt the hole-pin force transmission mechanism, the pin-and-hole dish is located at the side, unifies into the pin-and-hole end cap with end cap, and compact structure is made easy to maintenance; Its pin is formed by the cylinder oscillating tooth extraction of some, the alligator unification, and also the pin cantilever is short, and distribution diameter is big.
The transmission circle is supported in the outer ring by bearing pack and becomes output mechanism, directly outputting power.Described bearing pack can be rolling bearing (cylindrical body, ball) or sliding bearing, can be single-row or multiple row.
The long-term job tooth ends is provided with capacity eccentric bearing, and capacity eccentric bearing is rolling bearing (cylindrical body, ball) or sliding bearing, and the capacity eccentric bearing inner ring is rigid body or is embedded with flexible body.
According to second feature of the present invention, the long-term job tooth ends is provided with pin tooth cover, and the long-term job tooth is provided with and all carries ring, and eccentric shaft is provided with equilibrium block.
According to the 3rd feature of the present invention, two groups of symmetric arrangement are integral, and eccentric shaft, transmission circle are shared, long and short oscillating tooth also can adopt whole shared, the off-centre of described eccentric shaft has two groups, direction is that unanimity also can stagger 180 °.
According to the 4th feature of the present invention, transmission circle, outer ring and bearing pack extend axially along it, and the transmission circle becomes cantilever structure, and output can be born bigger radial force like this.
Description of drawings
By detailed description, these and other purposes, features and advantages of the present invention and its other mode of execution will be known more, and can understand the present invention self better that accompanying drawing has represented to implement particular form of the present invention below with reference to accompanying drawing.In the accompanying drawing:
Fig. 1 represents the first embodiment of the invention structural representation;
Fig. 2 represents the first embodiment of the invention partial sectional view;
Fig. 3 represents the first embodiment of the invention schematic side view;
Fig. 4 represents the second embodiment of the invention structural representation;
Fig. 5 represents the third embodiment of the invention structural representation;
Fig. 6 represents the four embodiment of the invention structural representation.
Among the figure:
1 outer ring, 2 bearing pack, 3 transmission circles, 4 transmission circle oscillating tooths, 5 long-term job teeth, 6 short oscillating tooth 7 ring gears 8 eccentric shafts 9 bearings 10 rotary arm bearings 11 capacity eccentric bearings 12 pin-and-hole end caps 21 pin teeth overlap 22 equilibrium blocks 23 and all carry ring
Embodiment
Introduce first to fourth mode of execution of the present invention below with reference to Fig. 1 to Fig. 6.The reference number that parts are identical will be used for being illustrated in these mode of execution same parts.Therefore,, will omit repeat specification, introduce the difference of structure in the union for each embodiment.
Below with reference to Fig. 1 to Fig. 3, represented first mode of execution of the present invention among the figure, this circular mobile tooth and small tooth difference variable-speed drive device is by eccentric stiffener, and few tooth difference mechanism, hole-pin force transmission mechanism are formed; Eccentric shaft 8 is supported on transmission circle 3 and the pin-and-hole end cap 12 by two bearings 9, and transmission circle 3 is supported on the outer ring 1 by bearing pack 2, and ring gear 7 is supported on the eccentric shaft 8 by rotary arm bearing 10; The inboard of transmission circle 3 is provided with the uniform arc groove of some, and the outside of ring gear 7 also is provided with the uniform arc groove of some, and their quantity is unequal, differ quantity and be 1 and more than; Transmission circle oscillating tooth 4 is housed in the arc groove of transmission circle 3, long-term job tooth 5 and short oscillating tooth 6 are housed in the arc groove of ring gear 7, the quantity of long-term job tooth 5 evenly extracts at interval by certain arc groove; Capacity eccentric bearing 11 is equipped with in the end of long-term job tooth 5, and capacity eccentric bearing 11 is supported in the pin-and-hole of pin-and-hole end cap 12.This mode of execution, monnolithic case such as common rolling bearing can be according to the form production and the application of standard piece.
Below with reference to Fig. 4, represented second mode of execution of the present invention among the figure, this circular mobile tooth and small tooth difference variable-speed drive device has identical structural type with first mode of execution of the present invention.Because the present invention has eccentric structure, is unbalanced when rotatablely moving, so eccentric shaft 8 is provided with two equilibrium blocks 22.The capacity eccentric bearing 11 of first mode of execution also can be substituted by the pin tooth cover 21 of present embodiment, and adopting capacity eccentric bearing 11 certainly also is good structural type.On long-term job tooth 5, be provided with and all carry ring 23, when the pin tooth overlaps 21 power transmissions, play the effect of all carrying.This mode of execution, monnolithic case such as common rolling bearing can be according to the form production and the application of standard piece.
Below with reference to Fig. 5, represented the 3rd mode of execution of the present invention among the figure, this circular mobile tooth and small tooth difference variable-speed drive device contains two groups of first mode of executions of the present invention, two groups of symmetric arrangement are integral, eccentric shaft 8, transmission circle 3 are shared, long-term job tooth 5, short oscillating tooth 6 also can adopt whole shared, the off-centre of described eccentric shaft 8 has two groups, direction is that unanimity also can stagger 180 °.
Below with reference to Fig. 6, represented the 4th mode of execution of the present invention among the figure, this circular mobile tooth and small tooth difference variable-speed drive device is similar substantially to first mode of execution of the present invention.Transmission circle 3, outer ring 1 and bearing pack 2 are extended axially along it, 3 one-tenth cantilever structures of transmission circle, the output of present embodiment can bear bigger radial force like this.
In addition to the implementation, the present invention can also have other mode of executions, described several embodiments' inner structure form can be used in combination according to actual conditions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, still do not break away from the spirit and scope of the present invention.
Claims (9)
1. circular mobile tooth and small tooth difference variable-speed drive device, it comprises outer ring, bearing pack, transmission circle, transmission circle oscillating tooth, long-term job tooth, short oscillating tooth, ring gear, eccentric shaft, bearing, rotary arm bearing, capacity eccentric bearing, pin-and-hole end cap, pin tooth cover, equilibrium block, all carries ring.It is characterized in that: the few tooth difference engagement of transmission circle and ring gear, the profile of tooth that is meshed is the cylndrical surface, replace traditional involute, cycloid, and cylinder is free to rotate, convex-concave cooperates; Adopt the hole-pin force transmission mechanism, the pin-and-hole dish is located at the side, and with the end cap unification, pin is formed by the cylinder oscillating tooth extraction of some, the alligator unification; Output mechanism is the transmission circle.
2. circular mobile tooth and small tooth difference variable-speed drive device according to claim 1, wherein said transmission circle and outer ring are provided with bearing pack, and bearing pack is rolling bearing (cylindrical body, a ball), or sliding bearing, and aforementioned bearings is single group or many groups.
3. circular mobile tooth and small tooth difference variable-speed drive device according to claim 1, wherein said long-term job tooth ends is provided with capacity eccentric bearing, capacity eccentric bearing is rolling bearing (cylindrical body, a ball), or sliding bearing, and the capacity eccentric bearing inner ring is rigid body or is embedded with flexible body.
4. circular mobile tooth and small tooth difference variable-speed drive device according to claim 1, wherein said long-term job tooth ends is provided with pin tooth cover.
5. circular mobile tooth and small tooth difference variable-speed drive device according to claim 1, wherein said cylindrical oscillating tooth can be an integrative-structure with corresponding transmission circle or ring gear.
6. circular mobile tooth and small tooth difference variable-speed drive device comprises that eccentric shaft is provided with equilibrium block as feature as described in the claim 1～5, and the long-term job tooth is provided with and all carries ring.
7. circular mobile tooth and small tooth difference variable-speed drive device comprises that its structure is that two groups of symmetric arrangement are integral as feature as described in the claim 1～5, and eccentric shaft, transmission circle are shared, and it is shared that long-term job tooth, short oscillating tooth also can whole.
8. circular mobile tooth and small tooth difference variable-speed drive device according to claim 7, two groups of eccentric directions of wherein said eccentric shaft are that unanimity also can stagger 180 °.
9. circular mobile tooth and small tooth difference variable-speed drive device comprises that its structure is that transmission circle, outer ring and bearing pack extend axially along it as feature as described in claim 1～5 or 6, and the transmission circle becomes cantilever structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810196624XA CN101363516B (en) | 2008-10-06 | 2008-10-06 | Circular mobile tooth and small tooth difference variable-speed drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810196624XA CN101363516B (en) | 2008-10-06 | 2008-10-06 | Circular mobile tooth and small tooth difference variable-speed drive device |
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| Publication Number | Publication Date |
|---|---|
| CN101363516A true CN101363516A (en) | 2009-02-11 |
| CN101363516B CN101363516B (en) | 2010-07-14 |
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| CN200810196624XA Expired - Fee Related CN101363516B (en) | 2008-10-06 | 2008-10-06 | Circular mobile tooth and small tooth difference variable-speed drive device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982302A (en) * | 2010-08-30 | 2011-03-02 | 兰州瑞德实业集团有限公司 | Planetary transmission mechanism for double-faced grinding/polishing machine |
| 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 |
| CN108533708A (en) * | 2018-06-15 | 2018-09-14 | 王踊 | Thrust gear hobbing gear and the transmission device for using such gear |
| CN113062962A (en) * | 2021-04-12 | 2021-07-02 | 王踊 | Anti-rolling thrust hobbing gear and transmission device using same |
-
2008
- 2008-10-06 CN CN200810196624XA patent/CN101363516B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982302A (en) * | 2010-08-30 | 2011-03-02 | 兰州瑞德实业集团有限公司 | Planetary transmission mechanism for double-faced grinding/polishing machine |
| CN101982302B (en) * | 2010-08-30 | 2013-01-02 | 兰州瑞德实业集团有限公司 | Planetary transmission mechanism for double-faced grinding/polishing machine |
| 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 |
| CN108533708A (en) * | 2018-06-15 | 2018-09-14 | 王踊 | Thrust gear hobbing gear and the transmission device for using such gear |
| CN108533708B (en) * | 2018-06-15 | 2022-08-09 | 王踊 | Thrust hobbing gear and transmission device using same |
| CN113062962A (en) * | 2021-04-12 | 2021-07-02 | 王踊 | Anti-rolling thrust hobbing gear and transmission device using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101363516B (en) | 2010-07-14 |
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