CN205503875U - Speed reducer - Google Patents
Speed reducer Download PDFInfo
- Publication number
- CN205503875U CN205503875U CN201620359432.6U CN201620359432U CN205503875U CN 205503875 U CN205503875 U CN 205503875U CN 201620359432 U CN201620359432 U CN 201620359432U CN 205503875 U CN205503875 U CN 205503875U
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- CN
- China
- Prior art keywords
- gear
- ring
- retainer
- planetary gear
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a speed reducer, including the inner circle with set up in inner circle outlying outer lane, contain first sun gear and second sun gear on the outer wall of inner circle, contain first ring gear and second ring gear on the inner wall of outer lane, the meshing is connected with a set of first planet wheel between first sun gear and the first ring gear, the meshing is connected with a set of second planet wheel between second sun gear and the second ring gear, a set of first planet wheel is connected inside location of first ring gear through first planet wheel holder, a set of second planet wheel is connected inside location of second ring gear through second planet wheel holder, a second planet wheel holder and a transmission shaft fixed connection. The utility model discloses a planet wheel structure of two sets of different speed reducing ratio has realized the speed reduction of big velocity ratio, big moment transmission, the input of high rotational speed, high accuracy transmission performance, and has the advantage that the technology manufacturing is simple, with low costs and the reliability is high.
Description
Technical field
This utility model relates to mechanical reduction transmission field, specifically a kind of reductor.
Background technology
Mostly the reducer with big speed ratio of current industrial use is Cycloidal Wheel reductor and harmonic wave speed reducing machine.Cycloidal Wheel reductor and harmonic wave speed reducing machine all have eccentric shaft mechanism, and its input speed is relatively low and is not easily accomplished high pulling torque transmission, and speed reducing ratio is not easy to do greatly.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of reductor, utilizes the planetary gear set that two speed reducing ratio differences are less, can realize the rotating speed output of relatively big retarding ratio.
The technical solution of the utility model is:
A kind of reductor, include inner ring and be arranged at the outer ring that inner ring is peripheral, the first sun gear and the second sun gear is included on the outer wall of inner ring, the first ring gear and the second ring gear is included on the inwall of outer ring, engage connection between the first described sun gear and the first ring gear and have one group of the first row star-wheel, engage connection between the second described sun gear and the second ring gear and have one group of second planetary gear, one group of described the first row star-wheel is connected in the first ring gear positioned internal by the first row star-wheel retainer, one group of second described planetary gear is connected in the second ring gear positioned internal by the second planetary gear retainer, the second described planetary gear retainer and the fixing connection of a power transmission shaft.
When described the first row star-wheel retainer is fixed and inner ring is power shaft, fix, with the second planetary gear retainer, the power transmission shaft being connected and be set to output shaft.
When described the first row star-wheel retainer is fixed and outer ring is power shaft, fix, with the second planetary gear retainer, the power transmission shaft being connected and be set to output shaft.
When described outer ring is fixed and inner ring is power shaft, the first row star-wheel retainer and fix, with the second planetary gear retainer, the power transmission shaft being connected and be set to output shaft.
Fixing and fix with the second planetary gear retainer the power transmission shaft being connected when described the first row star-wheel retainer when being power shaft, inner ring is set to output shaft.
Described the first row star-wheel retainer is fixed, and is that the first row star-wheel retainer is fixedly connected on housing.
Described outer ring is fixed, and is that outer ring is fixedly connected on housing.
Can be the rigid structure of integration between the first sun gear of comprising on the outer wall of inner ring and inner ring, the second sun gear three, it is also possible to be the fixed connection structure between inner ring and the first sun gear and the second sun gear；Can be the rigid structure of integration between the first ring gear and the second ring gear three that comprise on outer ring and outer ring inwall, it is also possible to be inner circumferential garden and the first ring gear and the fixed connection structure of the second ring gear of outer ring.
Relative size value by the speed reducing ratio of the speed reducing ratio and one group of second planetary gear that change one group of the first row star-wheel, it is possible to achieve outfan is relative to the equidirectional underdrive of input or opposite direction underdrive.
Advantage of the present utility model:
This utility model uses the planetary gear structure of two groups of difference speed reducing ratio to achieve large speed ratio to slow down, high-torque transmission, the input of high rotating speed and the performance of high accuracy transmission, and technique is simple to manufacture, low cost and the high advantage of reliability.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment 1.
Fig. 2 is the relativeness figure of this utility model sun gear, planetary gear and ring gear.
Fig. 3 is the structural representation of this utility model embodiment 2.
Fig. 4 is the structural representation of this utility model embodiment 3.
Fig. 5 is the structural representation of this utility model embodiment 4.
Detailed description of the invention.
Embodiment 1
See Fig. 1 and Fig. 2, a kind of reductor, include housing 1, the inner ring 2 being arranged in housing 1 and the outer ring 3 being arranged at inner ring 2 periphery, the first sun gear 4 and the second sun gear 5 is comprised on the outer wall of inner ring 2, the first ring gear 6 and the second ring gear 7 is comprised on the inwall of outer ring 3, engage connection between first sun gear 4 and the first ring gear 6 and have one group of the first row star-wheel 8, engage connection between second sun gear 5 and the second ring gear 7 and have one group of second planetary gear 9, one group of the first row star-wheel 8 is connected in the first ring gear 6 positioned internal by the first row star-wheel retainer 10, one group of second planetary gear 9 is connected in the second ring gear 7 positioned internal by the second planetary gear retainer 11, second planetary gear retainer 11 is fixing with a power transmission shaft 12 to be connected；Wherein, when the first row star-wheel retainer 10 is fixedly connected on housing 1 and inner ring 2 is power shaft, it is set to output shaft with the second fixing power transmission shaft 12 being connected of planetary gear retainer 11.
The modulus of the first row star-wheel 8 is 1, number of teeth z11=60 of the first sun gear 4, radius r11=30, number of teeth z13=70 of the first row star-wheel 8, radius r13=35, number of teeth z12=130 of the first ring gear 6, radius r12=100；The modulus of the second planetary gear 9 is 0.8, number of teeth z21=75 of the second sun gear 5, radius r21=30, number of teeth z23=87 of the second planetary gear 9, radius r23=34.8, number of teeth z22=162 of the second ring gear 7, radius r22=99.6.
Transfer Formula is rotated according to planetary gear, when sun gear be driving link, the retainer of planetary gear be that driven member, ring gear are fixed, transmission formula is: i31=1/ (1+z2/z1), in formula, i31 is the planetary gear retainer speed reducing ratio relative to sun gear, z2 is the number of teeth of ring gear, and z1 is the number of teeth of sun gear；
Owing to two groups of planetary gears share an external toothing, so using external toothing as common reference point time, the second planetary gear retainer 11 relative to the rotation speed difference of the first row star-wheel retainer 10 is: 1/(1+z22/z21)-1/(1+z12/z11)=1/(1+162/75)-1/(1+130/60)=1/1501；
It is connected, so output shaft is 1501 times relative to the speed reducing ratio of power shaft because the second planetary gear retainer and output shaft are fixing.
The result of calculation rotating speed difference is that the output rotation direction after explanation is slowed down is identical with the rotation direction of input.Equally when the speed reducing ratio of one group of second planetary gear is less than the speed reducing ratio of one group of the first row star-wheel, the rotation speed difference result of calculating is negative value, and the output after deceleration is contrary with the rotation direction of input.
Embodiment 2
See Fig. 3, a kind of reductor, include housing 1, the inner ring 2 being arranged in housing 1 and the outer ring 3 being arranged at inner ring 2 periphery, the first sun gear 4 and the second sun gear 5 is included on the outer wall of inner ring 2, the first ring gear 6 and the second ring gear 7 is included on the inwall of outer ring 3, engage connection between first sun gear 4 and the first ring gear 6 and have one group of the first row star-wheel 8, engage connection between second sun gear 5 and the second ring gear 7 and have one group of second planetary gear 9, one group of the first row star-wheel 8 is connected in the first ring gear 6 positioned internal by the first row star-wheel retainer 10, one group of second planetary gear 9 is connected in the second ring gear 7 positioned internal by the second planetary gear retainer 11, second planetary gear retainer 11 is fixing with a power transmission shaft 12 to be connected；Wherein, when the first row star-wheel retainer 10 is fixedly connected on housing 1 and outer ring 3 is power shaft, it is set to output shaft with the second fixing power transmission shaft 12 being connected of planetary gear retainer 11.
The first row star-wheel retainer 10 is fixedly connected on housing 1, when outer ring 3 rotates, owing to the first row star-wheel retainer 10 constrains the second planetary gear retainer 11 relative to external toothing and the relative rotation speed of sun gear, from embodiment 1, owing to the speed reducing ratio of the first row star-wheel 8 and the second planetary gear 9 differs the least, result obtains, at power transmission shaft 12, the rotating speed that a vast scale reduces.
Embodiment 3
See Fig. 4, a kind of reductor, include housing 1, the inner ring 2 being arranged in housing 1 and the outer ring 3 being arranged at inner ring 2 periphery, the first sun gear 4 and the second sun gear 5 is included on the outer wall of inner ring 2, the first ring gear 6 and the second ring gear 7 is included on the inwall of outer ring 3, engage connection between first sun gear 4 and the first ring gear 6 and have one group of the first row star-wheel 8, engage connection between second sun gear 5 and the second ring gear 7 and have one group of second planetary gear 9, one group of the first row star-wheel 8 is connected in the first ring gear 6 positioned internal by the first row star-wheel retainer 10, one group of second planetary gear 9 is connected in the second ring gear 7 positioned internal by the second planetary gear retainer 11, second planetary gear retainer 11 is fixing with a power transmission shaft 12 to be connected；Wherein, outer ring 3 be fixedly connected on housing 1 and inner ring 2 for power shaft time, the first row star-wheel retainer 10 and be set to output shaft with the second fixing power transmission shaft 12 being connected of planetary gear retainer 11.
Due to two groups of planetary gears module, the sun gear number of teeth, the number of teeth of planetary gear and the ring gear number of teeth can separate configurations, so the output speed of the output speed of the first row star-wheel retainer 10 and the second planetary gear retainer 11 can be according to job demand flexible configuration.
Embodiment 4
See Fig. 5, a kind of reductor, include housing 1, the inner ring 2 being arranged in housing 1 and the outer ring 3 being arranged at inner ring 2 periphery, the first sun gear 4 and the second sun gear 5 is included on the outer wall of inner ring 2, the first ring gear 6 and the second ring gear 7 is included on the inwall of outer ring 3, engage connection between first sun gear 4 and the first ring gear 6 and have one group of the first row star-wheel 8, engage connection between second sun gear 5 and the second ring gear 7 and have one group of second planetary gear 9, one group of the first row star-wheel 8 is connected in the first ring gear 6 positioned internal by the first row star-wheel retainer 10, one group of second planetary gear 9 is connected in the second ring gear 7 positioned internal by the second planetary gear retainer 11, second planetary gear retainer 11 is fixing with a power transmission shaft 12 to be connected；Wherein, when the first row star-wheel retainer 10 is fixedly connected on housing 1 and the power transmission shaft 12 that be connected fixing with the second planetary gear retainer 11 is power shaft, inner ring 2 is set to output shaft.
When power from
When power transmission shaft 12 inputs, power is rotated in the second sun gear 5 and the second ring gear 7 by the second planetary gear retainer 11, owing to the first row star-wheel retainer 10 is fixedly attached on housing 1, so the Slewing logic relation of the second external toothing and sun gear is obtained, at inner ring 2, the rotating speed that a speed ratio amplifies by the constraint of the first row star-wheel retainer 10, result.The present embodiment is the inverse process of embodiment 1.
Claims (7)
1. a reductor, it is characterized in that: include housing, the outer ring that the inner ring being arranged in housing is peripheral with being arranged at inner ring, the first sun gear and the second sun gear is comprised on the outer wall of inner ring, the first ring gear and the second ring gear is comprised on the inwall of outer ring, engage connection between the first described sun gear and the first ring gear and have one group of the first row star-wheel, engage connection between the second described sun gear and the second ring gear and have one group of second planetary gear, one group of described the first row star-wheel is connected in the first ring gear positioned internal by the first row star-wheel retainer, one group of second described planetary gear is connected in the second ring gear positioned internal by the second planetary gear retainer, the second described planetary gear retainer and the fixing connection of a power transmission shaft.
A kind of reductor the most according to claim 1, it is characterised in that: when described the first row star-wheel retainer is fixed and inner ring is power shaft, fix, with the second planetary gear retainer, the power transmission shaft being connected and be set to output shaft.
A kind of reductor the most according to claim 1, it is characterised in that: when described the first row star-wheel retainer is fixed and outer ring is power shaft, fix, with the second planetary gear retainer, the power transmission shaft being connected and be set to output shaft.
A kind of reductor the most according to claim 1, it is characterised in that: when described outer ring is fixed and inner ring is power shaft, the first row star-wheel retainer and fix, with the second planetary gear retainer, the power transmission shaft being connected and be set to output shaft.
5.According to claim 1 Described a kind of reductor, it is characterised in that: fixing and fix with the second planetary gear retainer the power transmission shaft being connected when described the first row star-wheel retainer when being power shaft, inner ring is set to output shaft.
6.According to claim 2-3 Or 5 A kind of reductor described in any one, it is characterised in that: described the first row star-wheel retainer is fixedly connected on housing.
7.According to claim 4 Described a kind of reductor, it is characterised in that: described outer ring is fixedly connected on housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359432.6U CN205503875U (en) | 2016-04-25 | 2016-04-25 | Speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359432.6U CN205503875U (en) | 2016-04-25 | 2016-04-25 | Speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205503875U true CN205503875U (en) | 2016-08-24 |
Family
ID=56706507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620359432.6U Expired - Fee Related CN205503875U (en) | 2016-04-25 | 2016-04-25 | Speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205503875U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757185A (en) * | 2016-04-25 | 2016-07-13 | 袁廷华 | Speed reducer |
| CN107061637A (en) * | 2017-03-10 | 2017-08-18 | 安徽理工大学 | A kind of planetary transmission system of the double uniform flow dividing structure in parallel of planetary gear |
| CN115462225A (en) * | 2022-10-26 | 2022-12-13 | 河南科技大学 | Pot seedling taking mechanism with cam-link planetary gear train |
-
2016
- 2016-04-25 CN CN201620359432.6U patent/CN205503875U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757185A (en) * | 2016-04-25 | 2016-07-13 | 袁廷华 | Speed reducer |
| CN107061637A (en) * | 2017-03-10 | 2017-08-18 | 安徽理工大学 | A kind of planetary transmission system of the double uniform flow dividing structure in parallel of planetary gear |
| CN115462225A (en) * | 2022-10-26 | 2022-12-13 | 河南科技大学 | Pot seedling taking mechanism with cam-link planetary gear train |
| CN115462225B (en) * | 2022-10-26 | 2024-01-26 | 河南科技大学 | Pot seedling taking mechanism with cam connecting rod planetary gear train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20180425 |