CN209340430U - A kind of modified planet-gear speed reducer - Google Patents
A kind of modified planet-gear speed reducer Download PDFInfo
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- CN209340430U CN209340430U CN201821978628.9U CN201821978628U CN209340430U CN 209340430 U CN209340430 U CN 209340430U CN 201821978628 U CN201821978628 U CN 201821978628U CN 209340430 U CN209340430 U CN 209340430U
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- speed reducer
- deceleration train
- planet
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Abstract
The utility model discloses a kind of modified planet-gear speed reducer, and the speed reducer that prior art three-level NGW planetary gear train is connected into speed ratio 50-300 is improved to K-H-V cycloid train and NGW involute train is connected into the 2-level reducer of same speed ratio.Modified speed reducer and the prior art speed reducer bearing capacity under volume the same terms improve 30%.Modified speed reducer includes motor, K-H-V train input shaft, rotary arm bearing, Cycloidal Wheel, needle tooth internal gear, pin-type load W output mechanism, NGW train center sun gear, planetary gear, internal gear, output shaft.Motor drives K-H-V train input shaft and rotary arm bearing rotation, engages Cycloidal Wheel with needle tooth internal gear and generates retarded motion, passes to NGW train center sun gear, engages planetary gear with internal gear and generates retarded motion, realizes output shaft and slows down.Modified speed reducer and prior art speed reducer input shaft and output axle steer are all identical.
Description
Technical field
The utility model relates to a kind of modified planet-gear speed reducers, especially a kind of to use K-H-V type cycloid in planet
Deceleration train and NGW type involute planetary deceleration train are composed in series transmission ratio 50-300, input shaft and the equidirectional rotation of output shaft
The planet-gear speed reducer turned.
Background technique
The planet-gear speed reducer of the prior art, attached drawing 2 are the structure of the planet-gear speed reducer of the prior art, this row
The shortcomings that star gear reduction unit, is: prior art planet-gear speed reducer using NGW type involute planet gear be driven, due to by
NGW type involute planet gear gear range is placed restrictions on, it is necessary to use three-level NGW type involute planet gear deceleration train string
Connection can be only achieved the requirement of planet-gear speed reducer step-down ratio 50-300.Since planet-gear speed reducer is wanted in certain operating conditions
Cube compact dimensions install three-level NGW type involute planet gear deceleration train, every grade of NGW in regulation confined space domestic demand
Type involute planet gear deceleration train volume size can only be narrow, and the safe load carrying capacity of planet-gear speed reducer is limited
Only, it is easy overload damage, influences planet-gear speed reducer normal work.
Summary of the invention
The utility model aim is to provide a kind of modified planet-gear speed reducer, this modified planet-gear speed reducer
It is not to be connected using three-level NGW type involute planet gear deceleration train, composition step-down ratio reaches 50-300 planetary gear reduction
Fast machine, but the first order use input shaft and the equidirectional rotation of output shaft K-H-V type cycloid gear deceleration train, second
Grade uses NGW type involute planet gear deceleration train, due to the step-down ratio of K-H-V type cycloid gear deceleration train
Range is larger, and step-down ratio can be reached by being composed in series planet-gear speed reducer only with secondary planetary gear deceleration train
The requirement of 50-300 only needs to install in the prior art is taken up space by the speed reducer of three-level NGW type planetary gear speed-reduction train
The volume size of the speed reducer of secondary planetary gear deceleration train, every grade of planetary gear speed-reduction train can amplify, composed
The bearing capacity of planet-gear speed reducer increases 30% or so than the bearing capacity of prior art planet-gear speed reducer, improves
The reliability of planet-gear speed reducer, and meet certain operating condition needs, modified planet-gear speed reducer and existing skill
The input shaft and output shaft of art planet-gear speed reducer all must rotating Vortexes.
In order to solve the above technical problems, the utility model uses following technical proposals.
By the K-H-V type cycloid row of first order deceleration train input shaft and the equidirectional rotation of first order deceleration train output shaft
Star gear reduction train, second level deceleration train involute central sun gear and second level deceleration train pinion frame, that is, defeated
The NGW type involute planet gear deceleration train of the equidirectional rotation of shaft, a kind of modified row that above-mentioned two train is composed in series
Case lid, box body of speed reducer, first order deceleration train needle tooth internal gear, first before star gear reduction unit, including motor, speed reducer
Grade deceleration train input shaft, first order deceleration train eccentric rotary arm bearing, first order deceleration train cycloid gear, the first order
Ratio wheel bitt pin type W output mechanism, first order deceleration train output shaft, second level deceleration train involute center sun tooth
Wheel, second level deceleration train involute planet gear, second level deceleration train involute internal gear, second level deceleration train planet
Gear shaft, second level deceleration train pinion frame, that is, output shaft, speed reducer back box lid, second level deceleration train center sun tooth
Wheel with output shaft coupling bearing, first order deceleration train needle tooth internal gear bearing support, first order deceleration train input shaft axle sleeve,
The axis that deceleration train output shaft in the second level mutually connects firmly.
The motor is fixed on the upper surface of case lid before the speed reducer, case lid lower end surface before the speed reducer
Couple with the box body of speed reducer, the first order deceleration train needle tooth internal gear can be opposite with the box body of speed reducer
Rotation, the first order deceleration train needle tooth internal gear are supported on first order deceleration train needle tooth internal gear bearing support,
The bearing support and needle tooth internal gear of the first order deceleration train input shaft axle sleeve are installed on case lid before the speed reducer
Bearing support, described first order deceleration train input shaft one end connects firmly in first order deceleration train input shaft axle sleeve, another
End is fixed with the first order deceleration train eccentric rotary arm bearing inner hole, the first order deceleration train cycloid gear
Central bore be supported on the first order deceleration train eccentric rotary arm bearing roller, the first order deceleration train pendulum
Line planetary gear is meshed with the first order deceleration train needle tooth internal gear, the first order ratio wheel bitt pin type W
Pin one end of output mechanism is fixed on before speed reducer on case lid, the other end cantilever insertion first order deceleration train cycloid
Planetary gear etc. is divided in distribution hole, and the first order deceleration train needle tooth internal gear and the first order deceleration train are defeated
The flange of shaft connects firmly, the first order deceleration train output shaft and the second level deceleration train involute center sun
Gear connects firmly, and the second level deceleration train involute planet gear subtracts close to the gear teeth of central axis with the second level
Fast train involute central sun gear is meshed, and the second level deceleration train involute planet gear is most from central axis
The remote gear teeth are meshed with the second level deceleration train involute internal gear, the second level deceleration train planetary gear
Axis is connected firmly with the second level deceleration train pinion frame, that is, output shaft, the second level deceleration train center sun tooth
Wheel and the second level deceleration train pinion frame, that is, output shaft, using second level deceleration train central sun gear with it is defeated
Shaft coupling bearing is connected, and connection is mounted in second level deceleration train involute central sun gear with bearing outer ring
Portion, connection are mounted on the axis mutually connected firmly with second level deceleration train output shaft with bearing inner race, and the second level is slowed down
Train pinion frame is to export on the bearing being pivotally supported in the speed reducer back box lid.
A kind of working principle of the modified planet-gear speed reducer of the utility model；It is mounted on the planetary gear reduction
Motor rotary work before fast machine on case lid drives the first order deceleration train input shaft rotation, and drives described the
Primary speed-down train eccentric rotary arm bearing makees eccentric revolution motion, and the first order deceleration train cycloid gear is described
First order deceleration train eccentric rotary arm bearing drive under, not only made eccentric revolution motion, but with the first order deceleration train
Needle tooth internal gear, which is meshed, makees deceleration spinning motion, which exports machine by the first order ratio wheel bitt pin type W
Structure passes to the first order deceleration train needle tooth internal gear and first order deceleration train output shaft and second level deceleration train
Involute central sun gear rotation, the second level deceleration train involute planet gear close to central axis the gear teeth with
The second level deceleration train involute central sun gear is meshed, the second level deceleration train involute planetary tooth
It takes turns the gear teeth farthest from central axis to be meshed with the second level deceleration train involute internal gear, is engaged and transported by gear
It is dynamic, make the second level deceleration train involute planet gear around the second level deceleration train involute center sun
Gear makees deceleration revolution motion, this deceleration revolution motion passes to by the planetary gear shaft of the second level deceleration train
Double reduction train pinion frame, that is, output shaft is rotated in deceleration movement, realizes the deceleration of modified planet-gear speed reducer
Work.Since a kind of modified planet-gear speed reducer first order of the utility model is using input shaft and the equidirectional rotation of output shaft
Turn K-H-V type Planetary Gear Transmission, second level deceleration train use NGW type Planetary Gear Transmission, described in the second level subtract
Fast train input shaft (second level involute central sun gear) is also with second level deceleration train pinion frame, that is, output shaft
Equidirectional rotation, therefore a kind of input shaft of modified planet-gear speed reducer of the utility model and output shaft are equidirectional rotation
Turn.
The superiority of the utility model first, the planet-gear speed reducer of the prior art due to by NGW type involute planetary
Gear reduction train gear range is placed restrictions on, it is necessary to using three-level NGW type involute planet gear deceleration train series connection ability
Reach the requirement of planet-gear speed reducer step-down ratio 50-300, a kind of modified planet-gear speed reducer of the utility model is only
Planet-gear speed reducer need to be composed in series using secondary planetary gear deceleration train, the first order is wider using gear range
K-H-V type cycloid gear deceleration train, with the concatenated second level of first order K-H-V type cycloid gear deceleration train
Planetary gear speed-reduction train uses NGW type involute planet gear deceleration train, the deceleration that this double reduction train is composed in series
The step-down ratio of machine can reach 50-300, use three-level NGW type planetary gear reduction in prior art planet-gear speed reducer
Secondary planetary gear deceleration train, the body of every grade in this way planetary gear speed-reduction train need to be only installed in fixed space shared by fast train
Product size can amplify with bearing capacity, the row of the safe load carrying capacity of composed planet-gear speed reducer than the prior art
The safe load carrying capacity of star gear reduction unit increases 30% or so, improves the reliability of planetary reducer.
The superiority of the utility model is second, modified planet-gear speed reducer and the first of box body of speed reducer relative rotation
Grade deceleration train needle tooth internal gear is supported on first order deceleration train needle tooth internal gear bearing support, improves first order deceleration
The smoothness of operation of train needle tooth internal gear.
The superiority of the utility model third, modified planet-gear speed reducer second level deceleration train involute center
Deceleration train central sun gear in the second level used by sun gear and second level deceleration train pinion frame, that is, output shaft
The inside of second level deceleration train involute central sun gear is mounted on the outer ring of output shaft coupling bearing, inner ring is mounted on
On second level deceleration train output shaft mutually axis of fixed connection, keep the length of output shaft internal splined hole defeated compared with prior art speed reducer
The increase of shaft internal splined hole length is more, improves the bearing capacity of spline connection.
The superiority of the utility model is fourth, modified planet-gear speed reducer and prior art three-level NGW type planet tooth
The input shaft and output shaft for taking turns speed reducer are equidirectional rotation, are conducive to meet certain operating condition needs, are more advantageous to and are not changing
Under conditions of variable working condition, modified planet-gear speed reducer directly substitutes prior art three-level NGW type planet-gear speed reducer.
Detailed description of the invention
Attached drawing 1 is a kind of modified planet-gear speed reducer schematic diagram of the utility model；
Attached drawing 2 is prior art planet-gear speed reducer schematic diagram.
In attached drawing 1: 1, motor；2, case lid before speed reducer；3, box body of speed reducer；4, first order deceleration train input shaft；
5, first order deceleration train eccentric rotary arm bearing；6, first order deceleration train cycloid gear；7, first order ratio wheel bitt
Pin type W output mechanism；8, first order deceleration train needle tooth internal gear；9, first order deceleration train output shaft；10, the second level subtracts
Fast train involute central sun gear；11, second level deceleration train involute planet gear；12, second level deceleration train is gradually
Burst at the seams internal gear；13, second level deceleration train planetary gear shaft；14, second level deceleration train pinion frame, that is, output shaft；
15, speed reducer back box lid；16, second level deceleration train central sun gear and output shaft coupling bearing；17, first order ratio wheel
It is needle tooth internal gear bearing support；18, first order deceleration train input shaft axle sleeve；19, second level deceleration train output shaft is mutually solid
The axis of connection.
In attached drawing 2: 1, motor；2, case lid before speed reducer；3, first order deceleration train input shaft, that is, first order ratio wheel
It is involute central sun gear；4, first order deceleration train involute planet gear；5, in first order deceleration train involute
Gear；6, first order deceleration train planetary gear shaft；7, first order deceleration train pinion frame, that is, second level deceleration train is gradually
Burst at the seams central sun gear；8, second level deceleration train involute planet gear；9, second level deceleration train involute internal gear；
10, second level deceleration train planetary gear shaft；11, second level deceleration train pinion frame, that is, third level deceleration train involute
Central sun gear；12, third level deceleration train involute planet gear；13, third level deceleration train involute internal gear；
14, third level deceleration train planetary gear shaft；15, third level deceleration train pinion frame, that is, third level deceleration train output
Axis；16, speed reducer back box lid.
Specific embodiment
Embodiment shown in reference to the accompanying drawing is described in detail below the utility model:
As shown in Figure 1, a kind of modified planet-gear speed reducer of the utility model uses secondary planetary gear driving wheel
It is the planet-gear speed reducer being composed in series, first order deceleration train input shaft 4 and 9 Tongfang of first order deceleration train output shaft
To the K-H-V type cycloid gear deceleration train of rotation, second level deceleration train involute central sun gear 10 and
Double reduction train pinion frame, that is, output shaft 14 is also the NGW involute planet gear deceleration train of equidirectional rotation, is passed
It moves than reachable 50-300, the input shaft and output shaft of this modified planet-gear speed reducer are equidirectional rotation.Modified row
Motor 1 described in star gear reduction unit is fixed on the upper surface of case lid 2 before the speed reducer, case lid before the speed reducer
2 lower end surface couples with box body of speed reducer 3, the first order deceleration train needle tooth internal gear 8 and the box body of speed reducer 3
Can relative rotation, the first order deceleration train needle tooth internal gear 8 uses first order deceleration train needle tooth internal gear support shaft
17 bearings are held, the bearing support of the first order deceleration train input shaft axle sleeve 18 is installed in case lid 2 before the speed reducer,
One end of the first order deceleration train input shaft 4 connects firmly in the first order deceleration train input shaft axle sleeve 18, separately
One end is fixed with 5 inner hole of first order deceleration train eccentric rotary arm bearing, the first order deceleration train cycloid in planet tooth
The central bore of wheel 6 is supported on the roller of the first order deceleration train eccentric rotary arm bearing 5, and the first order is slowed down
Train cycloid gear 6 is meshed with the first order deceleration train needle tooth internal gear 8, the first order deceleration train
Pin one end of pin-type load W output mechanism 7 is fixed on before speed reducer on case lid 2, and the other end cantilever insertion first order subtracts
In the hole of the equal part distribution of fast train cycloid gear 6, the first order deceleration train needle tooth internal gear 8 and described the
The flange of primary speed-down train output shaft 9 connects firmly, the first order deceleration train output shaft 9 and the second level ratio wheel
It is that involute central sun gear 10 connects firmly, the second level deceleration train involute planet gear 11 is close to central axis
The gear teeth are meshed with the second level deceleration train involute central sun gear 10, the second level deceleration train involute
The gear teeth farthest from central axis of planetary gear 11 are meshed with the second level deceleration train involute internal gear 12, described
Second level deceleration train planetary gear shaft 13 connected firmly with the second level deceleration train pinion frame, that is, output shaft 14, institute
The second level deceleration train involute central sun gear 10 and the second level deceleration train pinion frame stated export
Axis 14 is connected using second level central sun gear with output shaft coupling bearing 16, the second level deceleration train involute
The outer ring of central sun gear 10 and output shaft coupling bearing 16 is mounted on second level deceleration train involute central sun gear
10 inside, inner ring are mounted on the axis 19 that deceleration train output shaft in the second level mutually connects firmly, the speed reducer back box lid 15
Upper surface and the lower end surface of the second level deceleration train involute internal gear 12 mutually connect firmly, the second level ratio wheel
It is on the bearing in the speed reducer back box lid 15 described in pinion frame i.e. output shaft 14 is supported on.
A kind of working principle of modified planet-gear speed reducer of the utility model: it is mounted on case lid before the speed reducer
The motor shaft rotary work of 2 motor 1 drives the first order deceleration train input shaft 4 to rotate, and drives described the
Primary speed-down train eccentric rotary arm bearing 5 makees eccentric revolution motion, and the first order deceleration train cycloid gear 6 exists
Under the first order deceleration train eccentric rotary arm bearing 5 drives, eccentric revolution motion was not only made, but also slow down with the first order
Train needle tooth internal gear 8 is meshed, and makees deceleration spinning motion, drives the first order deceleration train needle tooth internal gear 8 and institute
The movement for the relative rotation of box body of speed reducer 3 is stated, and passes to the first order deceleration train output shaft 9 and second level ratio wheel
It is involute central sun gear 10.The gear teeth of the second level deceleration train involute planet gear 11 close to central axis
It is meshed with the second level deceleration train involute central sun gear 10, the second level deceleration train involute row
The gear teeth farthest from central axis of star gear 11 are meshed with the second level deceleration train involute internal gear 12, pass through
Gear gear motion makes the second level deceleration train involute planet gear 11 surround the second level deceleration train gradually
The central sun gear that bursts at the seams 10 makees deceleration revolution motion, the planet that this deceleration revolution motion passes through the second level deceleration train
Gear shaft 13 passes to second level deceleration train pinion frame i.e. output shaft 14 and is rotated in deceleration movement, modified planetary gear
Speed reducer decelerating operation.
Claims (3)
1. a kind of modified planet-gear speed reducer, including case lid, box body of speed reducer, the first order are slowed down before motor, speed reducer
Train input shaft, first order deceleration train cycloid gear, first order ratio wheel bitt pin type W output mechanism, the first order subtract
Fast train output shaft, second level deceleration train involute central sun gear, second level deceleration train involute planet gear,
Double reduction train involute internal gear, second level deceleration train pinion frame, that is, output shaft, speed reducer back box lid, it is this to change
Into type planet-gear speed reducer, it is characterized in that: the planet-gear speed reducer being composed in series using secondary planetary gear deceleration train,
Its first order deceleration train input shaft and the K-H-V type cycloid gear of the equidirectional rotation of first order deceleration train output shaft pass
Dynamic form, second level deceleration train involute central sun gear and second level deceleration train pinion frame, that is, output shaft,
It is the NGW involute planet gear driving form of rotating Vortex, input shaft and the output shaft of modified planet-gear speed reducer are
Rotating Vortex.
2. a kind of modified planet-gear speed reducer according to claim 1, it is characterized in that: first order deceleration train needle tooth
Internal gear and decelerating chassis physical efficiency relative rotation, the first order deceleration train needle tooth internal gear of rotation are supported on first order deceleration
On train needle tooth internal gear bearing support.
3. a kind of modified planet-gear speed reducer according to claim 1, it is characterized in that: second level deceleration train is gradually opened
Line central sun gear is coupled with second level deceleration train pinion frame, that is, output shaft using bearing, outside connection bearing
Circle is mounted on the inside of second level deceleration train involute central sun gear, and the inner ring of connection bearing is mounted on and the second level
Deceleration train output shaft mutually connects firmly on the axis connect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821978628.9U CN209340430U (en) | 2018-11-28 | 2018-11-28 | A kind of modified planet-gear speed reducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821978628.9U CN209340430U (en) | 2018-11-28 | 2018-11-28 | A kind of modified planet-gear speed reducer |
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| CN209340430U true CN209340430U (en) | 2019-09-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156302A (en) * | 2020-01-07 | 2020-05-15 | 重庆大学 | Large speed ratio heavy load speed reducer |
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2018
- 2018-11-28 CN CN201821978628.9U patent/CN209340430U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156302A (en) * | 2020-01-07 | 2020-05-15 | 重庆大学 | Large speed ratio heavy load speed reducer |
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