CN109268452A - Double cycloid differential speed reducer - Google Patents
Double cycloid differential speed reducer Download PDFInfo
- Publication number
- CN109268452A CN109268452A CN201811440951.5A CN201811440951A CN109268452A CN 109268452 A CN109268452 A CN 109268452A CN 201811440951 A CN201811440951 A CN 201811440951A CN 109268452 A CN109268452 A CN 109268452A
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- CN
- China
- Prior art keywords
- wheel
- internal tooth
- fixing seat
- teeth
- double
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
- F16H55/0826—Novikov-Wildhaber profile
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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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- 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
- F16H57/00—General details of gearing
- F16H2057/0087—Computer aided design [CAD] specially adapted for gearing features ; Analysis of gear systems
Abstract
A kind of double cycloid differential speed reducer, including fixing seat, it is equipped with output wheel in fixing seat side, is equipped with wheel for inputting in the circular cavity that output wheel and fixing seat are formed, wheel for inputting is drawn by fixing seat side and is equipped with active axis hole in axle center, is equipped with work axis hole in output wheel axle center；There is the first internal tooth in fixing seat inner wall even distribution, there is the second internal tooth in output wheel inner wall even distribution, double pendulum line wheel is equipped in circular cavity, double cycloid wheel is sleeved on the external gear that on the eccentric wheel of wheel for inputting inner end and the equal, number of teeth differs 1~3 by two moduluses and is formed by stacking；Two external gears are equal with the modulus of the first internal tooth and the second internal tooth, the number of teeth differs one respectively, and respectively with the first internal tooth of part and the second internal tooth internal gearing, the pitch diameter of the first internal tooth and the second internal tooth is respectively equal to the sum of the external gear pitch diameter being engaged with it and two times eccentric wheel eccentricity.The configuration of the present invention is simple, easy to process, frictional resistance is small, long service life, and can be realized a wide range of speed ratio.
Description
Technical field
The present invention relates to a kind of retarder, in particular to a kind of double cycloid differential speed reducer.
Background technique
Traditional cycloidal planetary gear speed reducer is the reducer shell being formed by connecting by chassis block, pin wheel housing and flange seat, respectively
The input shaft and output shaft being mounted in flange seat and chassis block, the cycloid gear of input shaft inner end is sleeved on by eccentric bushing,
The gear pin being uniformly fixed in pin wheel housing, the pin shaft being uniformly fixed on the wheel disc of output shaft inner end are constituted.This cycloidal-pin wheel
Speed reducer the problem is that: 1, input shaft and output shaft pass through bearing respectively and are mounted on flange seat and chassis block, are simultaneously
So that mechanism is reached balance, two sets of eccentric bushings and cycloid gear is usually symmetrical arranged on input shaft, therefore complete machine carries out opposite rotation
The part turned is more, and volume is big, and structure is complicated, manufacturing cost is high, and the heat of generation is big, and heat dissipation is difficult, when high-power transmission especially
It is prominent；2, pin shaft one end is fixed on output shaft, in cantilever position, and while working fully relies on pin shaft transmitting high torque,
Therefore rolls set is set on pin shaft, but pin shaft is still prone to wear, is bent, or even fractures；Once selling when especially processing
There is error in axis halving precision, will result in the part even independent stress of single pin shaft, can greatly speed up pin shaft abrasion, therefore right
Component processing required precision is higher；3, when installing, input shaft and output shaft need respectively using shaft coupling and motor shaft and work
Axis connection, it is erroneous for installation；4, the tooth form of cycloid gear outer rim is located at as abnormal epicycloid, and tooth form is complicated, and difficulty of processing is big；5, phase
It is more to the component of rotation, keep the frictional resistance that need to be overcome when motor driven big, increases the load of motor.
The CN101705979 of my invention discloses a kind of cycloidal planetary gear speed reducer, although this cycloidal planetary gear speed reducer
It solves the above problem to a certain extent, but has been found that need to manufacture low speed than high-power cycloid speed reducer in practice,
Just need to reduce the diameter and the number of teeth of fixing seat and cycloid gear, and cycloid gear diameter is nowhere processed thereon once crossing urine
Scallop hole, therefore the cycloidal planetary gear speed reducer of this structure cannot achieve low speed than high-power.
Authorization Publication No. CN103335069A discloses a kind of sieve run-out tolerance speed reducer, and this retarder changes tradition
The kind of drive of cycloidal planetary gear speed reducer, no setting is required in double pendulum line wheel any pin shaft hole or scallop hole, double cycloid size of wheel
Without limitation, therefore low speed can be produced and compare high-power gear reducer.But its gear pin and gear hobbing pin be installed in respectively fixing seat and
The circumferential inner wall of output wheel, and there have the perimeter close to half to protrude from the excircle of gear pin and gear hobbing pin respectively to be solid
The circumferential inner wall of reservation and output wheel, therefore, it is difficult to guarantee the structural integrity of gear pin and gear hobbing pin；And due to gear pin
The circumferential inner wall of fixing seat and output wheel is installed in respectively with gear hobbing pin, when work between gear pin and fixing seat and gear hobbing pin
Sliding friction can be generated between output wheel, coefficient of friction and frictional resistance are big, and not only service life is short, but also increase motor
Idle work.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind to be not only simple in structure, and easy to process, frictional resistance is small, makes
It is long with the service life, and can be realized the double cycloid differential speed reducer of a wide range of speed ratio.
Technical scheme is as follows:
A kind of double cycloid differential speed reducer, including fixing seat are equipped with output wheel, output wheel and fixing seat in fixing seat side
A circular cavity is formed, wheel for inputting is equipped in the circular cavity, wheel for inputting is drawn by fixing seat side and set in axle center
There is active axis hole, is equipped with work axis hole in output wheel axle center；It is characterized in that: being evenly equipped with first in the circumferential inner wall of fixing seat
Internal tooth is evenly equipped with the second internal tooth in the circumferential inner wall of output wheel, and double pendulum line wheel, double cycloid wheel case are equipped in the circular cavity
On the eccentric wheel of wheel for inputting inner end, the double pendulum line wheel is the external gear of number of teeth difference 1~3 equal by two moduluses
It is formed by stacking；Two external gears are equal with the modulus of the first internal tooth and the second internal tooth, the number of teeth differs one respectively, two external gears
Respectively with the first internal tooth of part and the second internal tooth internal gearing, the pitch diameter of the first internal tooth and the second internal tooth respectively equal to stung with it
The sum of the external gear pitch diameter of conjunction and two times of eccentric wheel eccentricity.
As further preferred, each teeth lateral margin of first internal tooth and the second internal tooth is respectively symmetrical and evagination
Arc-shaped, the center of circle of arc-shaped lateral margin is located on the pitch circle calibration point of the first internal tooth and the second internal tooth；First internal tooth and
Each teeth inner edge of two internal tooths is the arc-shaped of indent, with further manufacture easy to process.
As further preferred, each teeth two sides lateral margin of the external gear is the arc-shaped of indent, and adjacent two
Between a teeth corresponding arc-shaped lateral margin on the same circumference, with further manufacture easy to process.
As further preferred, the eccentric wheel is structure as a whole with wheel for inputting, and fan-shaped balance hole is equipped on eccentric wheel.
As further preferred, needle bearing is equipped between double pendulum line wheel and eccentric wheel.
As further preferred, the double pendulum line wheel be, the number of teeth equal by two moduluses differ 1 external gear superposition and
At；For realizing large speed ratio deceleration.
As further preferred, the double pendulum line wheel be, the number of teeth equal by two moduluses differ 2 external gear superposition and
At；Slow down for realizing compared with large speed ratio.
The beneficial effects of the present invention are:
1, since only there are four the basic element of character to constitute for complete machine, the component that complete machine carries out relative rotation is few therefore small in size, again
Amount is light, and structure is simple, manufacturing cost is low, and the heat of generation is small, is easy heat dissipation；It is various that overall weight volume is equivalent to Same Efficieney
The one third of type is particularly suitable for installing and using at narrow space.
2, it is evenly equipped with the first internal tooth in the circumferential inner wall of fixing seat, is evenly equipped with the second internal tooth in the circumferential inner wall of output wheel,
Double pendulum line wheel is equipped in the circular cavity, two external gears in double pendulum line wheel are respectively and in the first internal tooth of part and second
Tooth internal gearing, thus it is easy to process, and frictional resistance is small, is that rolling rubs between double pendulum line wheel and the first internal tooth and the second internal tooth
It wipes, frictional resistance is small, long service life,
3, since the double pendulum line wheel is that equal by two moduluses, number of teeth difference 1~3 external gear is formed by stacking；It needs
When increasing speed ratio, only it need to reduce the teeth number difference of two external gears, therefore can be realized a wide range of speed ratio, application range
Extensively.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the B-B cross-sectional view of Fig. 1.
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 2.
Fig. 5 is the A-A cross-sectional view of Fig. 4.
Fig. 6 is the B-B cross-sectional view of Fig. 4.
In figure: eccentric wheel 1, balance hole 101, output wheel 2, the second internal tooth 201, work axis hole 202, sealing 3, fixing seat 4,
First internal tooth 401, double pendulum line wheel 5, external gear 501, needle bearing 6, wheel for inputting 7, active axis hole 701.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Figure 1-Figure 3, a kind of double cycloid differential speed reducer of the present invention, including a fixing seat 4, in fixation
4 sides of seat are equipped with output wheel 2, form a circular cavity between output wheel 2 and fixing seat 4, are equipped in the circular cavity
Wheel for inputting 7, wheel for inputting 7 is drawn by 4 side of fixing seat and is equipped with active axis hole 701 in axle center, for being inserted into motor shaft；It is exporting
2 axle center are taken turns equipped with work axis hole 202, for being inserted into working shaft.
It is uniformly machined with the first internal tooth 401 in the circumferential inner wall of fixing seat 4, is uniformly processed in the circumferential inner wall of output wheel 2
There is the second internal tooth 201, double pendulum line wheel 5 is equipped in the circular cavity, double pendulum line wheel 5 is sleeved on the bias of 7 inner end of wheel for inputting
On wheel 1, the eccentric wheel 1 is structure as a whole with wheel for inputting 7, and the eccentric side on eccentric wheel 1 is equipped with fan-shaped balance hole 101.
Needle bearing 6 is installed between double pendulum line wheel 5 and eccentric wheel 1, when reducing work between eccentric wheel 1 and double pendulum line wheel 5
Friction.It is respectively equipped between 4 inner port of wheel for inputting 7 and fixing seat and between fixing seat 4 and the opposite face of output wheel 2 close
Envelope 3, in order to lubricate, prevents from leaking.
The double pendulum line wheel 5 is that equal by two moduluses, number of teeth difference 1~3 external gear 501 is formed by stacking.Two
External gear 501 is equal with the modulus of the first internal tooth 401 and the second internal tooth 201, the number of teeth differs one respectively, two external gears 501
Respectively with 201 internal gearing of part the first internal tooth 401 and the second internal tooth, the pitch diameter point of the first internal tooth 401 and the second internal tooth 201
The sum of 501 pitch diameter of external gear that Deng Yu not be engaged with it and two times of 1 eccentricity of eccentric wheel.First described in the present embodiment
The tooth number Z 1 of internal tooth 401 is 10, and 501 tooth number Z 2 of external gear corresponding with the first internal tooth 401 is 9；Second internal tooth 201
Tooth number Z 3 be 9,501 tooth number Z 4 of external gear corresponding with the second internal tooth 201 be 8.The number of teeth phase of i.e. two external gears 501
Poor 1, for realizing large speed ratio deceleration.The reduction ratio of the retarder are as follows:
I=Z2*Z3/ (Z2-Z4)=81
The lateral margin of each teeth two sides of first internal tooth 401 and the second internal tooth 201 is respectively symmetrical and evagination
It is arc-shaped, the lateral margin of each teeth two sides is located on same circumference and the center of circle is located at the first internal tooth 401 and the second internal tooth
On 201 pitch circle calibration point.Each teeth inner edge of first internal tooth 401 and the second internal tooth 201 is the arc-shaped of indent, with into one
Walk manufacture easy to process.Each teeth two sides lateral margin of the external gear 501 is the arc-shaped of indent, and adjacent two teeth
Between corresponding arc-shaped lateral margin on the same circumference, with further manufacture easy to process.
In use, fixing seat 4 is fixed on a pedestal, motor shaft and working shaft are inserted into wheel for inputting 7 and defeated respectively
The active axis hole 701 of wheel 2 and work and are connected by key axis hole out, and starting motor drives wheel for inputting 7 to rotate, due to the first internal tooth
401 differ one with corresponding 501 number of teeth of external gear, therefore can drive double pendulum line wheel 5 by eccentric wheel 1 when the rotation of wheel for inputting 7
Cycloid motion is done in circular cavity, while driving 2 rotating Vortex of output wheel, and wheel for inputting 7, which rotates a circle, keeps double pendulum line wheel 5 in the same direction
A teeth are rotated, and double pendulum line wheel 5 rotates a circle just will drive output wheel 2 rotating Vortex, one teeth, it is achieved that together
Slow down to large speed ratio and exports.
Embodiment 2
As shown in Figure 4-Figure 6, the tooth number Z 1 of the first internal tooth 401 described in the present embodiment is 11, right with the first internal tooth 401
501 tooth number Z 2 of external gear answered is 10；The tooth number Z 3 of second internal tooth 201 is 9, corresponding with the second internal tooth 201 outer
501 tooth number Z 4 of gear is 8.The number of teeth for constituting two external gears 501 of double pendulum line wheel 5 differs 2, for realizing larger speed
Than slowing down.The reduction ratio of the retarder are as follows: i=Z2*Z3/ (Z2-Z4)=45.There are three eccentric side on eccentric wheel 1 is set
Balance hole 101.The present embodiment other structures are with embodiment 1, and this embodiment is not repeated.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (7)
1. a kind of double cycloid differential speed reducer, including fixing seat are equipped with output wheel, output wheel and fixing seat shape in fixing seat side
At a circular cavity, wheel for inputting is equipped in the circular cavity, wheel for inputting is drawn by fixing seat side and is equipped in axle center
Active axis hole is equipped with work axis hole in output wheel axle center；It is characterized in that: the circumferential inner wall in fixing seat is evenly equipped with the first internal tooth,
It is evenly equipped with the second internal tooth in the circumferential inner wall of output wheel, double pendulum line wheel is equipped in the circular cavity, double cycloid wheel is sleeved on
On the eccentric wheel of wheel for inputting inner end, the double pendulum line wheel is equal by two moduluses, number of teeth difference 1~3 external gear superposition
It forms；Two external gears are equal with the modulus of the first internal tooth and the second internal tooth, the number of teeth differs one respectively, two external gear difference
With the first internal tooth of part and the second internal tooth internal gearing, what the pitch diameter of the first internal tooth and the second internal tooth was respectively equal to engaged with it
The sum of external gear pitch diameter and two times of eccentric wheel eccentricity.
2. double cycloid differential speed reducer according to claim 1, it is characterized in that: first internal tooth and the second internal tooth is every
A teeth lateral margin is respectively symmetrical and evagination arc-shaped, and the center of circle of arc-shaped lateral margin is located at the first internal tooth and the second internal tooth
Pitch circle calibration point on；Each teeth inner edge of first internal tooth and the second internal tooth is the arc-shaped of indent, to be further convenient for adding
Work manufacture.
3. double cycloid differential speed reducer according to claim 2, it is characterized in that: each teeth two sides side of the external gear
Edge is the arc-shaped of indent, and between adjacent two teeth corresponding arc-shaped lateral margin on the same circumference, with further
Manufacture easy to process.
4. double cycloid differential speed reducer according to claim 1, it is characterized in that: the eccentric wheel and wheel for inputting are integrated knot
Structure is equipped with fan-shaped balance hole on eccentric wheel.
5. double cycloid differential speed reducer according to claim 1-4, it is characterized in that: in double pendulum line wheel and eccentric wheel
Between be equipped with needle bearing.
6. double cycloid differential speed reducer according to claim 5, it is characterized in that: the double pendulum line wheel is by two modulus phases
The external gear for differing 1 Deng, the number of teeth is formed by stacking；For realizing large speed ratio deceleration.
7. double cycloid differential speed reducer according to claim 5, it is characterized in that: the double pendulum line wheel is by two modulus phases
The external gear for differing 2 Deng, the number of teeth is formed by stacking；Slow down for realizing compared with large speed ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440951.5A CN109268452A (en) | 2018-11-29 | 2018-11-29 | Double cycloid differential speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440951.5A CN109268452A (en) | 2018-11-29 | 2018-11-29 | Double cycloid differential speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268452A true CN109268452A (en) | 2019-01-25 |
Family
ID=65185948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811440951.5A Pending CN109268452A (en) | 2018-11-29 | 2018-11-29 | Double cycloid differential speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268452A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173551A (en) * | 2019-06-21 | 2019-08-27 | 上海快点机器人科技有限公司 | Deceleration mechanism with overload protection function |
| CN113859170A (en) * | 2021-08-09 | 2021-12-31 | 重庆光大产业有限公司 | Driving pre-tightening safety belt retractor with dynamically adjustable force limiting working condition and speed reducing mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335069A (en) * | 2013-07-04 | 2013-10-02 | 齐中才 | Sieve pendulum differential gear reducer |
| CN104653454A (en) * | 2014-12-18 | 2015-05-27 | 赵立军 | Internal meshed cycloid gear pump |
| CN105736645A (en) * | 2016-03-30 | 2016-07-06 | 湖北航天三江红林机电科技有限公司 | Conical pendulum type few tooth difference speed reduction device |
| CN106352024A (en) * | 2016-11-25 | 2017-01-25 | 许昌学院 | Single-eccentric short transmission chain speed reducer |
| DE102016201822A1 (en) * | 2016-02-08 | 2017-08-10 | Schaeffler Technologies AG & Co. KG | The wave gear |
-
2018
- 2018-11-29 CN CN201811440951.5A patent/CN109268452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335069A (en) * | 2013-07-04 | 2013-10-02 | 齐中才 | Sieve pendulum differential gear reducer |
| CN104653454A (en) * | 2014-12-18 | 2015-05-27 | 赵立军 | Internal meshed cycloid gear pump |
| DE102016201822A1 (en) * | 2016-02-08 | 2017-08-10 | Schaeffler Technologies AG & Co. KG | The wave gear |
| CN105736645A (en) * | 2016-03-30 | 2016-07-06 | 湖北航天三江红林机电科技有限公司 | Conical pendulum type few tooth difference speed reduction device |
| CN106352024A (en) * | 2016-11-25 | 2017-01-25 | 许昌学院 | Single-eccentric short transmission chain speed reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173551A (en) * | 2019-06-21 | 2019-08-27 | 上海快点机器人科技有限公司 | Deceleration mechanism with overload protection function |
| CN113859170A (en) * | 2021-08-09 | 2021-12-31 | 重庆光大产业有限公司 | Driving pre-tightening safety belt retractor with dynamically adjustable force limiting working condition and speed reducing mechanism |
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