CN107575541A - Has the planetary reduction gear of few teeth difference reducing gear - Google Patents
Has the planetary reduction gear of few teeth difference reducing gear Download PDFInfo
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- CN107575541A CN107575541A CN201710808009.9A CN201710808009A CN107575541A CN 107575541 A CN107575541 A CN 107575541A CN 201710808009 A CN201710808009 A CN 201710808009A CN 107575541 A CN107575541 A CN 107575541A
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Abstract
The invention discloses a kind of planetary reduction gear for having few teeth difference reducing gear, fixed in a circumferential direction by planet carrier of the few teeth difference input shaft directly with planetary gear speed reducing mechanism, both make use of the planetary gear of planetary gear speed reducing mechanism can greatly increase occlusal contact area between gear, the advantages of increase loads, bearing capacity is high, it is big that few teeth difference reducing gear gear range is by means of again, the characteristics of being easy to export high pulling torque so that overall decelerator has been provided simultaneously with the advantages of high-mechanic and big output；And on the basis of primary planet reducing gear serial less-tooth difference speed reducing mechanism reaches reduction decelerator axial dimension, it is connected by the way that the side output panel of the ring gear of planetary gear speed reducing mechanism and few teeth difference reducing gear is formed, the load to single part can be greatly reduced, and under the conditions of Same Efficieney, single part size can be done smaller, so that decelerator complete machine, in the case where meeting equal output torque, gearratio, relatively existing NGW planetary reducers volume is smaller, and weight is lighter.
Description
Technical field
The present invention relates to decelerator field, more particularly to a kind of planetary reduction gear for having few teeth difference reducing gear.
Background technology
NGW planetary reducers are a kind of existing conventional decelerator equipment, have the characteristics that small volume, in light weight.
To ensure the big speed ratio of NGW planetary reducers and high pulling torque output, more by the way of the series connection of multistage NGW planetary mechanisms
Realize, i.e., usually said multistage (including two level, three-level, level Four etc.) NGW planetary reduction gears.And this multistage planet mechanism string
The planetary reducer of connection, axial dimension is higher, and number of parts is more, and decelerator machine volume is big, structure bulky, very
It is not easy to carry and uses, and manufacturing cost is higher.
Therefore, it is necessary to be improved to existing planetary gear type reduction gear, equal output torque, biography can be met
In the case of dynamic ratio, relatively existing NGW planetary reducers have a less axial dimension, less number of parts, and
So that the volume of decelerator complete machine diminishes significantly, main screw lift is reduced.
The content of the invention
In view of this, the present invention provides a kind of planetary reduction gear for having few teeth difference reducing gear, and it disclosure satisfy that equal defeated
In the case of going out torque, gearratio, relatively existing NGW planetary reducers have a less axial dimension, and less zero
Number of packages amount, and the volume of decelerator complete machine is diminished significantly, reduce main screw lift.
The planetary reduction gear of the tool few teeth difference reducing gear of the present invention, including the planetary gear speed reducing mechanism secondary as primary transmission
With the few teeth difference reducing gear secondary as secondary transmission；
Planetary gear speed reducing mechanism include as power input sun gear, with sun gear external toothing setting planetary gear and with row
The planetary annular of star-wheel internal messing, planetary gear speed reducing mechanism also include being used for being formed the planet carrier of power output, planet carrier with it is every
One planetary gear is fixedly connected；
Few teeth difference reducing gear comprises at least the few teeth difference input shaft for being used for power input, and few teeth difference input shaft subtracts with planet
The planet carrier of fast mechanism forms a fixed connection in a circumferential direction to be transmitted for power.
Further, few teeth difference input shaft be axially through hollow structure.
Further, the end of few teeth difference input shaft passes through radially formed with radial flange, few teeth difference input shaft with planet carrier
Flange forms circumference and is fixedly connected.
Further, few teeth difference reducing gear also includes eccentric bushing, gear with small teeth difference I, gear with small teeth difference II, output panel and lacked
Tooth difference ring gear, bias are set on the periphery of few teeth difference input shaft, and gear with small teeth difference I and gear with small teeth difference II are with phase
For the mode of 180 ° of difference along eccentric bushing to spread configuration, eccentric bushing drives gear with small teeth difference I and gear with small teeth difference II around few tooth
The revolution motion of the axis of poor ring gear and the spinning motion around own axes, output panel and gear with small teeth difference I and few teeth difference tooth
The transmission of wheel II, which coordinates, is used for power output.
Further, two-phase potential difference is set to be 180 ° and correspond to and gear with small teeth difference I and gear with small teeth difference respectively on eccentric bushing
II eccentric block being rotatably assorted.
Further, output panel includes the drive plate I and drive plate II for being disposed in parallel in two gear with small teeth difference both sides vertically,
The both ends of few teeth difference input shaft penetrate two drive plates and formed in circumferencial direction and are rotatably assorted vertically；Drive plate I and transmission
By being formed a fixed connection in the uniform planet pin of circumferencial direction between disk II.
Further, the planetary reduction gear for having few teeth difference reducing gear also includes housing, and drive plate I and drive plate II are and shell
Body forms rotational support and coordinated.
Further, drive plate I and drive plate II are formed by two taper roll bearings being disposed opposite to each other with housing rotates
Support coordinates.
Further, the integrally formed axle sleeve being provided with for power output on drive plate I, the periphery of axle sleeve formed with
Power output gear ring.
Beneficial effects of the present invention：The planetary reduction gear of the tool few teeth difference reducing gear of the present invention, by the way that few teeth difference is subtracted
The few teeth difference input shaft of fast mechanism is directly solid in a circumferential direction with the planet carrier as planetary gear speed reducing mechanism power delivery section
Power cooperation is shaped as, that is, make use of the planetary gear of planetary gear speed reducing mechanism can greatly increase occlusal contact area between gear, and increase is negative
Carry, the advantages of bearing capacity is high, it is big to by means of few teeth difference reducing gear gear range again, the characteristics of being easy to export high pulling torque,
So that overall decelerator has been provided simultaneously with the advantages of high-mechanic and big output；
And on the basis of primary planet reducing gear serial less-tooth difference speed reducing mechanism reaches and reduces decelerator axial dimension,
It is connected by the way that the side output panel of the ring gear of planetary gear speed reducing mechanism and few teeth difference reducing gear is formed, further reduce and subtract
The overall axial dimension of fast device so that decelerator complete machine is relatively existing in the case where meeting equal output torque, gearratio
NGW planetary reducer volumes are smaller, and weight is lighter.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is schematic structural view of the invention.
Embodiment
Fig. 1 is schematic structural view of the invention, as shown in the figure：The planetary reduction gear of the tool few teeth difference reducing gear of the present embodiment
Device, including the planetary gear speed reducing mechanism secondary as primary transmission and the few teeth difference reducing gear secondary as secondary transmission；
Planetary gear speed reducing mechanism include as power input sun gear 2, with the external toothing of sun gear 2 setting planetary gear 3 and
With the planetary annular 4 of the internal messing of planetary gear 3, planetary gear speed reducing mechanism also includes being used for the planet carrier 5 for forming power output, planet
Frame 5 is fixedly connected with each planetary gear 3；In the present embodiment, planetary gear speed reducing mechanism is primary planet mechanism, and sun gear 2 passes through flower
Key is connected with outside line shaft, and planetary gear 3 sets two, three or more than three, the planetary reducer of the present embodiment
Structure forms clutch end by planet carrier 5, and planet carrier 5 is fixedly connected by bearing pin with planetary gear 3；
Few teeth difference reducing gear includes being used for the few teeth difference input shaft 6 of power input, coordinated with the transmission of few teeth difference input shaft
Less teeth difference transmission component and with less teeth difference transmission component transmission with merges be used for few teeth difference power output output panel, few teeth difference
The planet carrier 5 of input shaft 6 and planetary gear speed reducing mechanism forms a fixed connection in a circumferential direction to be transmitted for power；Output panel includes
The drive plate I and drive plate II for being disposed in parallel in the less teeth difference transmission component both sides vertically and being mutually permanently connected, few tooth
The both ends of poor input shaft penetrate two drive plates and formed in circumferencial direction and are rotatably assorted vertically, the planet of planetary gear speed reducing mechanism
Ring gear is fixedly connected in a circumferential direction with drive plate II；The power of planetary gear speed reducing mechanism is few from the input of few teeth difference input shaft 6
Tooth difference speed reducing mechanism；As illustrated, drive plate I, which is located at downside, is used for power output, drive plate II is positioned at the top of diagram, planet
Ring gear can be fixed in a circumferential direction with drive plate II 12, can be realized by screw, now drive plate II 12 just not as
Power output, but it is used as power to input, the power after deceleration only exports from drive plate I, i.e. (general from external impetus axle
For motor) input power be driven all the way through sun gear, planet carrier, few teeth difference input shaft and few teeth difference reducing gear after deceleration
To drive plate II 12, another way drives to drive plate II 12 through planetary gear, planetary annular and drive plate I 11, passes through two-way
Dynamic retarding transmission is completed in path, and two-way power converges, is transferred to drive plate II 12, can not only reduce to single part again
Load, and under the conditions of Same Efficieney, single part size can be done smaller, further reduce the axial dimension of complete machine,
Reduce the overall volume and weight of planetary reduction gear.
In the present embodiment, few teeth difference input shaft 6 be axially through hollow structure；Few teeth difference input shaft 6 be axially through
Structure, the inside of few teeth difference input shaft 6 can be used for line.
In the present embodiment, the end of few teeth difference input shaft 6 is formed with radial flange 7, few teeth difference input shaft 6 and planet carrier 5
Circumference is formed by radial flange 7 to be fixedly connected；Ensure alignment.
In the present embodiment, few teeth difference reducing gear also includes eccentric bushing 8, gear with small teeth difference I 9, gear with small teeth difference II 10, defeated
Placing and few teeth difference ring gear, eccentric bushing 8 are arranged on the periphery of few teeth difference input shaft 6, gear with small teeth difference I 9 and few teeth difference
Along 8 axial spread configuration of eccentric bushing in a manner of phase differs 180 °, eccentric bushing 8 drives gear with small teeth difference I 9 and lacked gear II 10
Revolution motion of the tooth difference gear II 10 around the axis of few teeth difference ring gear and the spinning motion around own axes, output panel and few tooth
Poor gear I 9 and gear with small teeth difference II 10 transmission, which coordinates, is used for power output；Gear with small teeth difference refers to that its number of teeth is slightly less than few teeth difference
The number of teeth of ring gear.
Set two-phase potential difference to be 180 ° in the present embodiment, on eccentric bushing 8 and correspond to respectively and gear with small teeth difference I 9 and few tooth
The eccentric block that poor gear II 10 is rotatably assorted；Two gear with small teeth difference are respectively set on an eccentric block, are provided with eccentric block partially
Mandrel is held, and eccentric bushing 8 can be the integrative-structure with few teeth difference input shaft 6, also can individually be arranged and be fixed on few teeth difference input shaft 6
Independent structure, rotated under the drive of the planet carrier 5 of few teeth difference input shaft 6, few teeth difference input shaft 6 pass through eccentric bushing 8 drive two
Gear with small teeth difference does revolution motion and spinning motion, and drives output panel to export power.
In the present embodiment, by being formed in the uniform planet pin 13 of circumferencial direction between drive plate I 11 and drive plate II 12
It is fixedly connected；The both ends of few teeth difference input shaft 6 penetrate two drive plates and formed in circumferencial direction and are rotatably assorted vertically；Few tooth
The both ends of poor input shaft 6 are coordinated by bearing and two drive plates respectively.
In the present embodiment, the planetary reduction gear of tool few teeth difference reducing gear also includes housing 14, drive plate I 11 and drive plate
II 12 form rotational support with housing 14 coordinates.
In the present embodiment, two taper roll bearings 15 and shell of drive plate I 11 and drive plate II 12 by being disposed opposite to each other
Body 14 forms rotational support and coordinated.
In the present embodiment, the integrally formed axle sleeve 16 being provided with for power output, the circumference of axle sleeve 16 on drive plate I 11
Outside is formed with power output gear ring 1.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (9)
- A kind of 1. planetary reduction gear for having few teeth difference reducing gear, it is characterised in that：Subtract including the planet secondary as primary transmission Fast mechanism and the few teeth difference reducing gear secondary as secondary transmission；The planetary gear speed reducing mechanism include be used for power input sun gear, with sun gear external toothing set planetary gear and with row The planetary annular of star-wheel internal messing, the planetary gear speed reducing mechanism also include being used for the planet carrier for forming power output, the row Carrier is fixedly connected with each planetary gear；The few teeth difference reducing gear includes being used for the few teeth difference input shaft of power input, is driven what is coordinated with few teeth difference input shaft Less teeth difference transmission component and with the transmission of less teeth difference transmission component with the output panel merged for few teeth difference power output, it is described to lack tooth The planet carrier of poor input shaft and the planetary gear speed reducing mechanism forms a fixed connection in a circumferential direction to be transmitted for power；It is described defeated Placing includes being disposed in parallel in the less teeth difference transmission component both sides and the drive plate I and drive plate that are mutually permanently connected vertically II, the both ends of the few teeth difference input shaft penetrate two drive plates and formed in circumferencial direction vertically to be rotatably assorted, the row The planetary annular of star reducing gear is fixedly connected in a circumferential direction with the drive plate II.
- 2. the planetary reduction gear of tool few teeth difference reducing gear according to claim 1, it is characterised in that：The few teeth difference is defeated Enter axle be axially through hollow structure.
- 3. the planetary reduction gear of tool few teeth difference reducing gear according to claim 1, it is characterised in that：The few teeth difference is defeated The end for entering axle forms circumference by the radial flange with planet carrier and fixed formed with radial flange, the few teeth difference input shaft Connection.
- 4. the planetary reduction gear of tool few teeth difference reducing gear according to claim 1, it is characterised in that：The few teeth difference passes Dynamic component includes eccentric bushing, gear with small teeth difference I, gear with small teeth difference II and few teeth difference ring gear, and the bias is set on described The periphery of few teeth difference input shaft, the gear with small teeth difference I and gear with small teeth difference II are in a manner of phase differs 180 ° along partially The heart covers axial spread configuration, and the eccentric bushing drives the gear with small teeth difference I and gear with small teeth difference II around few teeth difference ring gear The revolution motion of axis and the spinning motion around own axes.
- 5. the planetary reduction gear of tool few teeth difference reducing gear according to claim 4, it is characterised in that：On the eccentric bushing Two-phase potential difference is set to be 180 ° and correspond to the eccentric block being rotatably assorted with gear with small teeth difference I and gear with small teeth difference II respectively.
- 6. the planetary reduction gear of tool few teeth difference reducing gear according to claim 4, it is characterised in that：Drive plate I and biography By being formed a fixed connection in the uniform planet pin of circumferencial direction between Moving plate II, the planet pin fits through in gap vertically Gear with small teeth difference I and gear with small teeth difference II.
- 7. the planetary reduction gear of tool few teeth difference reducing gear according to claim 6, it is characterised in that：The tool few teeth difference The planetary reduction gear of reducing gear also includes housing, and the drive plate I and drive plate II form rotational support with the housing Coordinate.
- 8. the planetary reduction gear of tool few teeth difference reducing gear according to claim 7, it is characterised in that：The drive plate I Rotational support is formed with drive plate II with housing by two taper roll bearings being disposed opposite to each other to coordinate.
- 9. the planetary reduction gear of tool few teeth difference reducing gear according to claim 6, it is characterised in that：The drive plate I The upper integrally formed axle sleeve being provided with for power output, the periphery of the axle sleeve is formed with power output gear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808009.9A CN107575541B (en) | 2017-09-08 | 2017-09-08 | Has the planetary reduction gear of few teeth difference deceleration mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710808009.9A CN107575541B (en) | 2017-09-08 | 2017-09-08 | Has the planetary reduction gear of few teeth difference deceleration mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107575541A true CN107575541A (en) | 2018-01-12 |
| CN107575541B CN107575541B (en) | 2019-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710808009.9A Active CN107575541B (en) | 2017-09-08 | 2017-09-08 | Has the planetary reduction gear of few teeth difference deceleration mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331895A (en) * | 2018-04-18 | 2018-07-27 | 南京信息工程大学 | Few teeth difference big retarding compares composite speed reducer |
| WO2020015590A1 (en) * | 2018-07-18 | 2020-01-23 | 六环传动（西安）科技有限公司 | Planetary reduction electrical machine capable of achieving full closed-loop control and articulated robot |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006845A1 (en) * | 2001-07-09 | 2003-01-23 | Ganxu Zhou | A type of speed reducer or speed-varying device with sprocket-wheel drive assembly |
| JP2009257494A (en) * | 2008-04-17 | 2009-11-05 | Ntn Corp | Motor drive unit and in-wheel motor drive unit |
| CN101825067A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating cycloidal pitch-controlled speed reducer |
| CN202082348U (en) * | 2011-06-16 | 2011-12-21 | 重庆妙奇丰科技有限公司 | Yaw speed reducer |
| CN207111848U (en) * | 2017-09-08 | 2018-03-16 | 重庆清平机械有限责任公司 | Compact type planetary speed reducer with small tooth number difference |
-
2017
- 2017-09-08 CN CN201710808009.9A patent/CN107575541B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003006845A1 (en) * | 2001-07-09 | 2003-01-23 | Ganxu Zhou | A type of speed reducer or speed-varying device with sprocket-wheel drive assembly |
| JP2009257494A (en) * | 2008-04-17 | 2009-11-05 | Ntn Corp | Motor drive unit and in-wheel motor drive unit |
| CN101825067A (en) * | 2010-05-01 | 2010-09-08 | 吴声震 | Wind generating cycloidal pitch-controlled speed reducer |
| CN202082348U (en) * | 2011-06-16 | 2011-12-21 | 重庆妙奇丰科技有限公司 | Yaw speed reducer |
| CN207111848U (en) * | 2017-09-08 | 2018-03-16 | 重庆清平机械有限责任公司 | Compact type planetary speed reducer with small tooth number difference |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331895A (en) * | 2018-04-18 | 2018-07-27 | 南京信息工程大学 | Few teeth difference big retarding compares composite speed reducer |
| WO2020015590A1 (en) * | 2018-07-18 | 2020-01-23 | 六环传动（西安）科技有限公司 | Planetary reduction electrical machine capable of achieving full closed-loop control and articulated robot |
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| Publication number | Publication date |
|---|---|
| CN107575541B (en) | 2019-04-30 |
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