CN206458806U - A kind of miniature reducer - Google Patents
A kind of miniature reducer Download PDFInfo
- Publication number
- CN206458806U CN206458806U CN201720147505.XU CN201720147505U CN206458806U CN 206458806 U CN206458806 U CN 206458806U CN 201720147505 U CN201720147505 U CN 201720147505U CN 206458806 U CN206458806 U CN 206458806U
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- China
- Prior art keywords
- gear
- flange
- input shaft
- planetary gear
- flanges
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Abstract
The utility model discloses a kind of miniature reducer, including input shaft, planetary gear, flange, pin, internal gear and steel ball；Input shaft is provided with two eccentric wheels, and the side of eccentric wheel, which is provided with, can make the center of gravity of eccentric wheel fall back to compensating groove on the central axis of input shaft；Planetary gear is provided with two, and two planetary gear parameters are completely the same and with multiple pin-and-holes, and two planetary gears are separately mounted on two eccentric wheels by bearing, and planetary gear is provided with balance pipe；Flange is provided with two, and two flanges are arranged on input shaft by bearing respectively；Multiple pins are each passed through multiple pin-and-holes on two planetary gears；The internal tooth of internal gear is engaged with two planetary gears；Steel ball is provided with two groups, and every group includes multiple steel balls；The two ends of internal gear are respectively by two groups of steel ball positioning supports on two flanges.The utility model compact conformation, gearratio are big, precision is high, long lifespan, bearing capacity high, manufacturing cost is low, wide using scope.
Description
Technical field
The utility model is related to a kind of miniature reducer.
Background technology
At present, requiring big lightweight, small volume, gearratio, high transmission accuracy, the occasion of transmission efficiency (such as industry
Robot, service robot, at the Minor articulus of small scale robot) be all the harmonic speed reducer used.Harmonic speed reducer generally by
Wave producer, flexible gear, three bare bones compositions of rigid gear.Harmonic speed reducer is that one kind makes flexible gear by wave producer
Controlled elasticity deformation is produced, and is meshed with rigid gear and comes the gear drive of drive motion and power, harmonic speed reducer
Either under unloaded or loading condition, if operating, flexible gear will produce elastic deformation and fatigue stress, therefore it is soft
Property gear mesh material and heat treatment requirements it is very high, process also relatively difficult, complexity, and harmonic speed reducer special bearing is dependent on greatly
Import, general factory can not manufacture, and the price that this results in harmonic speed reducer is very expensive.
Utility model content
The purpose of this utility model is to provide that a kind of compact conformation, gearratio are big, precision is high, long lifespan, bearing capacity are high,
Manufacturing cost is low, use the wide miniature reducer of scope.
Realizing the technical scheme of the utility model purpose is：A kind of miniature reducer, including input shaft, planetary gear, method
Orchid, pin, internal gear and steel ball；The input shaft is mutually 180 ° of eccentric wheel, the one of eccentric wheel provided with two eccentric directions
Side, which is provided with, can make the center of gravity of eccentric wheel fall back to compensating groove on the central axis of input shaft；The planetary gear is provided with two,
Two planetary gear parameters are completely the same and with multiple pin-and-holes, and two planetary gears are separately mounted to two bias by bearing
On wheel, deflection angle is provided between two planetary gears；Balance pipe is additionally provided with the planetary gear, balance pipe makes planetary
The planetary central axis of deviation of gravity center, and make deviation of gravity center distance be equal to planetary setting-up eccentricity away from；Described two
The position of individual planetary balance pipe is arranged relative to towards outside into 180 °；The flange is provided with two, and two flanges lead to respectively
Bearing is crossed on input shaft, passes through multiple pins and nut connection composition caged framework between two flanges；It is the multiple
Pin is each passed through multiple pin-and-holes on two planetary gears；The internal tooth of the internal gear is engaged with two planetary gears；It is described
Steel ball is provided with two groups, and every group includes multiple steel balls；The two ends of the internal gear are respectively by two groups of steel ball positioning supports at two
On flange.
Deflection angle between described two planetary gears is 90 °.
The input shaft is hollow shaft.
A kind of miniature reducer, in addition to output shaft；The outer side center of one of flange be fixed with output shaft or
The outer side center of two flanges of person is respectively and fixedly provided with output shaft.
The output shaft is integral type structure with flange.
The output shaft is hollow shaft.
A kind of miniature reducer, in addition to end cap, backbone sealing ring and O-ring seal；The end cap is provided with two, two
End cap is separately positioned on the outside of two flanges, and one of end cap is arranged on input shaft by backbone sealing ring, another
End cap is arranged on flange adjacent thereto by O-ring seal.
Annular groove is equipped with the outside of described two flanges；Being equipped with the inside of described two end caps can be with flange outside
Annular groove coordinate annular flange.
Above-mentioned technical proposal is employed, the utility model has following beneficial effect：(1) the utility model is in performance
Not only there is harmonic speed reducer, modulus ratio harmonic speed reducer is twice in same gear ratios, and output shape
The diversity and adaptability of formula have profile succinctly attractive in appearance far beyond all kinds of planetary speed reducer with small tooth number difference, easy for installation, use
The advantages of long lifespan.
(2) compensating groove on the eccentric wheel on input shaft of the present utility model and the balance pipe on planetary gear, can
Reduce the moment of inertia on input shaft, vibration and noise during reduction input shaft rotation.
(3) all simply supported beam forms of axle, the supporting form of flange and pin in the utility model, substantially increase machine
The rigidity of structure；The structure type of caged framework realizes coaxial dual-speed output, the output of coaxial two ends, particularly conveniently realizes
Input and output are coaxially with the requirement at end, the problem of considering stress balance comprehensively, make its balance and noise specification less than all kinds of
Universal speed reducer, under equal volume and weight, compact conformation, big many, the large carrying capacity of gearratio, high transmission accuracy, system
Make difficulty lower than harmonic speed reducer with cost, service life is long.
(4) the utility model compact conformation, draw ratio is 1/2~2/3, and minimum outer diameter is up to 35mm, and 40mm has been
The limit minimum diameter of conventional harmonic speed reducer.
(5) two ends of internal gear of the present utility model, can respectively by two groups of steel ball positioning supports on two flanges
Realize the supporting of high rigidity.
Brief description of the drawings
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model, wherein
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
Fig. 2 is the structural representation of the input shaft of embodiment 1 of the present utility model.
Fig. 3 is the planetary structural representation of embodiment 1 of the present utility model.
Fig. 4 is the first input, output form schematic diagram of embodiment 1 of the present utility model.
Fig. 5 is second input, output form schematic diagram of embodiment 1 of the present utility model.
Fig. 6 is the input of embodiment 2 of the present utility model, output form schematic diagram.
Fig. 7 is the first input, output form schematic diagram of embodiment 3 of the present utility model.
Fig. 8 is second input, output form schematic diagram of embodiment 3 of the present utility model.
Fig. 9 is the third input, output form schematic diagram of embodiment 3 of the present utility model.
Figure 10 is the input of embodiment 4 of the present utility model, output form schematic diagram.
Figure 11 is the input of embodiment 5 of the present utility model, output form schematic diagram.
In accompanying drawing marked as：
Input shaft 1, eccentric wheel 1-1, compensating groove 1-1-1, planetary gear 2, pin-and-hole 2-1, balance pipe 2-2, flange 3, pin
4th, internal gear 5, steel ball 6, output shaft 7, end cap 8, annular flange 8-1, backbone sealing ring 9, O-ring seal 10.
Embodiment
(embodiment 1)
See Fig. 1, the miniature reducer of the present embodiment, including input shaft 1, planetary gear 2, flange 3, pin 4, internal gear 5,
Steel ball 6, output shaft 7, end cap 8, backbone sealing ring 9 and O-ring seal 10.
Input shaft 1 is mutually 180 ° of eccentric wheel 1-1 provided with two eccentric directions.Planetary gear 2 is provided with two, two rows
The parameter of star gear 2 is completely the same and with multiple pin-and-hole 2-1, and two planetary gears 2 are separately mounted to two bias by bearing
Take turns on 1-1, deflection angle is provided between two planetary gears 2, deflection angle can be 90 °.Flange 3 is provided with two, two 3 points of flanges
It is not arranged on by bearing on input shaft 1, passes through multiple pins 4 and nut connection composition caged framework between two flanges 3.It is many
Individual pin 4 is each passed through multiple pin-and-hole 2-1 on two planetary gears 2.The internal tooth of internal gear 5 is engaged with two planetary gears 2.
Steel ball 6 is provided with two groups, and every group includes multiple steel balls 6.The two ends of internal gear 5 are respectively by two groups of positioning supports of steel ball 6 at two
On flange 3.
Output shaft 7 is fixed on the outer side center of the flange 3 close to the side of O-ring seal 10, and scheme preferably is output shaft 7
It is integral type structure with flange 3.When the external gear revolution of planetary gear 2, drive output shaft 7 to rotate and realize output.Output shaft 7
For hollow shaft.End cap 8 is provided with two, and two end caps 8 are separately positioned on the outside of two flanges 3, and one of end cap 8 passes through bone
Frame sealing ring 9 is arranged on input shaft 1, and another end cap 8 is arranged on flange 3 adjacent thereto by O-ring seal 10.Two
The outside of individual flange 3 is equipped with annular groove.The inner side of two end caps 8, which is equipped with, to be coordinated with the annular groove in the outside of flange 3
Annular flange 8-1.
180 ° of eccentric wheel 1-1 is mutually due to being provided with two eccentric directions on input shaft 1, therefore input will necessarily be caused
Axle 1 produces moment of inertia at rotation (particularly rotating at a high speed).Two planetary gears 2 are because installed in eccentric wheel 1-1 simultaneously
On, when making plane motion can also moment of inertia be produced to input shaft 1.The collective effect of the two moments of inertia, can be formed pair
The whole unfavorable vibration of miniature reducer and noise.The method that the present embodiment solves this problem is respectively to input shaft 1 and row
Star gear 2 does dynamic balance treatment, and specific way is：
1. compensating groove 1-1-1, compensating groove 1-, are set in eccentric wheel 1-1 side (side of preferably respective eccentric direction)
1-1 size can be adjusted according to concrete structure weight, and its principle is：Eccentric wheel 1-1 center of gravity is allowed to fall back in eccentric shaft 1
On heart axis.
2., balance pipe 2-2 is set on planetary gear 2, makes the central shaft of the deviation of gravity center planetary gear 2 of planetary gear 2
Line, and make deviation of gravity center distance be equal to planetary gear 2 setting-up eccentricity away from.The balance pipe 2-2 of two planetary gears 2 position
Arranged relative to towards outside into 180 °.
See Fig. 4, the first input of the present embodiment, output form are：Internal gear 5 is fixed, and realizes that coaxial single-ended single speed is defeated
Go out.
See Fig. 5, second input, output form of the present embodiment are：Output shaft 7 is fixed, and realizes coaxial one end input one
End is fixed, and internal gear 5 is exported.
(embodiment 2)
See Fig. 6, the present embodiment is substantially the same manner as Example 1, and difference is：Input shaft 1 is from the endoporus of output shaft 7
Pass.
The input of the present embodiment, output form are：Internal gear 5 is fixed, and realizes coaxial single-ended double speed output.
(embodiment 3)
The present embodiment is substantially the same manner as Example 1, and difference is：It is not provided with output shaft 7.
See Fig. 7, the first input of the present embodiment, output form are：Internal gear 5 is fixed, and realizes that coaxial another end flange is defeated
Go out.
See Fig. 8, second input, output form of the present embodiment are：Internal gear 5 is fixed, and is realized coaxial defeated with end flanges
Go out.
See Fig. 9, the third input of the present embodiment, output form are：Internal gear 5 is fixed, and realizes coaxial two flanges output.
(embodiment 4)
See Figure 10, the present embodiment is substantially the same manner as Example 3, and difference is：Input shaft 1 is hollow shaft.
The input of the present embodiment, output form are：Internal gear 5 is fixed, and realizes coaxial one end insertion axle another end flange output.
(embodiment 5)
See Figure 11, the present embodiment is substantially the same manner as Example 1, and difference is：The outer side center of two flanges is solid
Surely there is output shaft.
The input of the present embodiment, output form are：Output shaft 7 is fixed, and realizes that coaxial one end input two ends are fixed, internal gear
5 outputs.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements done etc. all should be wrapped
It is contained within protection domain of the present utility model.
Claims (8)
1. a kind of miniature reducer, it is characterised in that：Including input shaft (1), planetary gear (2), flange (3), pin (4), interior
Gear (5) and steel ball (6)；The input shaft (1) is mutually 180 ° of eccentric wheel (1-1), eccentric wheel provided with two eccentric directions
The side of (1-1), which is provided with, can make the center of gravity of eccentric wheel (1-1) fall back to compensating groove (1-1- on the central axis of input shaft (1)
1)；The planetary gear (2) is provided with two, and two planetary gear (2) parameters are completely the same and with multiple pin-and-holes (2-1), two
Individual planetary gear (2) is separately mounted on two eccentric wheels (1-1) by bearing, provided with deflection between two planetary gears (2)
Angle；Balance pipe (2-2) is additionally provided with the planetary gear (2), balance pipe (2-2) makes the deviation of gravity center planet of planetary gear (2)
The central axis of gear (2), and make deviation of gravity center distance be equal to planetary gear (2) setting-up eccentricity away from；Described two planets
The position of the balance pipe (2-2) of gear (2) is arranged relative to towards outside into 180 °；The flange (3) is provided with two, two flanges
(3) it is arranged on input shaft (1), is made up of between two flanges (3) multiple pins (4) and nut connection by bearing respectively
Caged framework；The multiple pin (4) is each passed through multiple pin-and-holes (2-1) on two planetary gears (2)；The internal gear
(5) internal tooth is engaged with two planetary gears (2)；The steel ball (6) is provided with two groups, and every group includes multiple steel balls (6)；In described
The two ends of gear (5) are respectively by two groups of steel ball (6) positioning supports on two flanges (3).
2. a kind of miniature reducer according to claim 1, it is characterised in that：Between described two planetary gears (2)
Deflection angle is 90 °.
3. a kind of miniature reducer according to claim 1, it is characterised in that：The input shaft (1) is hollow shaft.
4. a kind of miniature reducer according to claim 1, it is characterised in that：Also include output shaft (7)；Described wherein one
The outer side center of individual flange (3) is fixed with output shaft (7) or the outer side center of two flanges (3) is respectively and fixedly provided with output shaft (7).
5. a kind of miniature reducer according to claim 4, it is characterised in that：The output shaft (7) is one with flange (3)
Body formula structure.
6. a kind of miniature reducer according to claim 4, it is characterised in that：The output shaft (7) is hollow shaft.
7. a kind of miniature reducer according to claim 1, it is characterised in that：Also include end cap (8), backbone sealing ring
And O-ring seal (10) (9)；The end cap (8) is provided with two, and two end caps (8) are separately positioned on the outer of two flanges (3)
Side, one of end cap (8) is arranged on input shaft (1) by backbone sealing ring (9), and another end cap (8) passes through O-shaped sealing
(10) are enclosed to be arranged on flange (3) adjacent thereto.
8. a kind of miniature reducer according to claim 7, it is characterised in that：It is all provided with the outside of described two flanges (3)
There is annular groove；The annular flange that can coordinate with the annular groove on the outside of flange (3) is equipped with the inside of described two end caps (8)
(8-1)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720147505.XU CN206458806U (en) | 2017-02-17 | 2017-02-17 | A kind of miniature reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720147505.XU CN206458806U (en) | 2017-02-17 | 2017-02-17 | A kind of miniature reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458806U true CN206458806U (en) | 2017-09-01 |
Family
ID=59691178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720147505.XU Withdrawn - After Issue CN206458806U (en) | 2017-02-17 | 2017-02-17 | A kind of miniature reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458806U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678341A (en) * | 2017-02-17 | 2017-05-17 | 黄溧震 | Miniature reducer |
| CN113757320A (en) * | 2021-09-15 | 2021-12-07 | 燕山大学 | String pin wheel reducer |
| US11486469B2 (en) | 2020-11-05 | 2022-11-01 | Delta Electronics, Inc. | Cycloid speed reducer |
| US11555531B1 (en) | 2021-09-24 | 2023-01-17 | Delta Electronics, Inc. | Cycloid speed reducer |
-
2017
- 2017-02-17 CN CN201720147505.XU patent/CN206458806U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678341A (en) * | 2017-02-17 | 2017-05-17 | 黄溧震 | Miniature reducer |
| CN106678341B (en) * | 2017-02-17 | 2023-10-20 | 黄溧震 | Miniature speed reducer |
| US11486469B2 (en) | 2020-11-05 | 2022-11-01 | Delta Electronics, Inc. | Cycloid speed reducer |
| CN113757320A (en) * | 2021-09-15 | 2021-12-07 | 燕山大学 | String pin wheel reducer |
| CN113757320B (en) * | 2021-09-15 | 2023-07-25 | 燕山大学 | String needle wheel speed reducer |
| US11555531B1 (en) | 2021-09-24 | 2023-01-17 | Delta Electronics, Inc. | Cycloid speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20231020 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20231020 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |