CN108087517A - A kind of subdivision differential differential speed reducer - Google Patents
A kind of subdivision differential differential speed reducer Download PDFInfo
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- CN108087517A CN108087517A CN201810079034.2A CN201810079034A CN108087517A CN 108087517 A CN108087517 A CN 108087517A CN 201810079034 A CN201810079034 A CN 201810079034A CN 108087517 A CN108087517 A CN 108087517A
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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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
- F16H37/082—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft and additional planetary reduction gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
A kind of subdivision differential differential speed reducer, differential differential reducing device including casing and in casing, the differential differential reducing device includes a nthdifferential differential reducing device and second-order differential differential reducing device, the one nthdifferential differential reducing device is sequentially connected by roller frame and second-order differential differential reducing device, roller frame is connected by outer shaft with motor drive, and the driving wheel of I and II differential differential reducing device is connected with main shaft.A kind of subdivision differential differential speed reducer precision is high, and torsion stiffness is big, under nominal torque, elastic return difference is small, and backhaul gap is small, and gear range is big, transmission efficiency transfers similary torque with small during power, and can take into account the requirement of precision and output torque simultaneously：Once, constantly Xun Huan reaches subdivision differential, reaches and realizes higher output accuracy on the premise of same torque is kept for one, the driving of second-order differential differential reducing device difference differential.
Description
Technical field
The invention belongs to mechanical engineering technical fields, are related to a kind of retarder, particularly a kind of subdivision differential differential reducing
Device.
Background technology
With the development of society and science and technology, human cost increasingly rises, and machine Man's Demands are increasing, retarder
It is the core component of robot, movement clearance influences robot overall performance very big, deceleration used in robot at present
There are the following problems for device：
1. the robot of higher-end（Such as industrial robot）Widely use RV retarders and harmonic speed reducer, such retarder skill
Art is complicated, the processing technologys such as material, machining and heat treatment are required it is harsh, it is at high price, it is difficult to civilian popularization；
2. the robot of lower end（Such as toy robot）The planetary reduction gear low precision that uses, gap return difference are big, it is impossible to full
The requirement of the civilian robot of foot.
Differential quantum will be driven, i.e., will be cut transmission process differentiation, then a copy by a copy output, it can reduce or even disappear
Except the movement clearance in transmission process, principle such as 16~Figure 18 of attached drawing, upper and lower two layers is disk with holes, and solid line hole is price fixing
22, dotted line hole is Moving plate 21, and the quantity in each hole is by design accuracy requirement variable, and quantity difference is constant, such as price fixing and Moving plate point
Not Wei 24 holes and 25 holes, pin plug is often inserted into driving wheel and moves 0.6 degree, sticks with a circle（24 times）Afterwards, driving wheel moves hole
Distance（B=14.4 degree）；It is less efficient, it is impossible to meet high speed since pin plug retarder takes the movement of plug pin plug to reach deceleration
Occasion.
The utility model patent of Application No. CN2017208877684《A kind of differential differential speed reducer》, it is poor using differential
The problem of dynamic movement replaces plug campaign, preferably resolves " low precision, gap return difference are big " present in prior art, it is former
Reason such as 19~Figure 20 of attached drawing：Figure 19 is front view, and Figure 20 is three-dimensional effect diagram,（Solid line gear is fixed wheel, and dotted line gear is
Wheel, intermediate pinion gear are differential gear）.
As can be known from Fig. 19, work drive motor drives sun gear 39 to rotate by input shaft, and sun gear 39 drives planetary gear 37
It rotates, planetary gear revolves round the sun while rotation around the gear teeth of 36 ring gear of fixed wheel, and passes through differential bracket 34 and drive differential gear 35
The gear teeth around 32 ring gear of fixed wheel while rotation revolve round the sun, and differential gear 35 drives driving wheel 32 to rotate, due to driving wheel 32 and output
Axis 31 is fixedly connected, so that output shaft 31 rotates.
However further study show that, although differential differential speed reducer can be used at a high speed, not compared with pin plug retarder
It can be used for high-power（Large torque cannot be exported）, differential differential speed reducer is difficult to take into account precision and output torque simultaneously, i.e. precision
It is required that higher, the torque that can be output is smaller, i.e., differential differential speed reducer design accuracy is higher, tooth form（Or modulus）It is smaller, energy
The torque smaller of output so that its application range is extremely restricted.
The content of the invention
The technical problem to be solved by the present invention is to：A kind of new subdivision differential differential speed reducer is provided, to overcome existing skill
Above-mentioned deficiency present in art.
Solving the technical solution of above-mentioned technical problem is：
A kind of subdivision differential differential speed reducer, including casing, motor and the differential differential reducing device in casing；It is described
Differential differential reducing device includes a nthdifferential differential reducing device and second-order differential differential reducing device, and a nthdifferential is poor
Dynamic deceleration device is mounted on the upper strata of casing, and the second-order differential differential reducing device is mounted on the lower floor of casing, a nthdifferential
Differential reducing device is sequentially connected by bracket wheel and second-order differential differential reducing device；
The one nthdifferential differential reducing device includes upper fixed wheel, difference wheel in upper driving wheel and at least two, the upper fixed wheel and upper
For driving wheel for reference diameter is identical, the gear teeth are towards the ring gear in axle center, the gear teeth of upper fixed wheel are identical with the tooth form of the gear teeth of upper driving wheel
Or it is similar and the number of teeth is different, upper fixed wheel is installed with upper driving wheel adjacent coaxial, and upper driving wheel is located at upper fixed wheel top, and upper fixed wheel periphery leads to
It crosses screw to be fixedly connected with casing, upper driving wheel is mounted on by driving wheel frame on main shaft, and the bracket wheel is mounted on upper by bearing
On the main shaft of fixed wheel lower part, the upper difference wheel is mounted on by bearing on the bracket axis on bracket wheel top, during original state
Upper at least one gear teeth of difference wheel are meshed simultaneously with the gear teeth of upper fixed wheel and the ring gear of upper driving wheel；
The bracket wheel is sequentially connected with the upper outer shaft gear mounted on casing one side, the upper outer shaft gear and casing one side
Outer axis connection, the lower outer shaft gear of outer shaft lower end connection, lower outer shaft gear and the motor gear of the motor positioned at casing lower part are driven
Connection；By lower outer shaft gear outer shaft is driven to rotate during electric motor starting, outer shaft drives bracket wheel to rotate by upper outer shaft gear, support
The upper difference wheel on frame wheel top revolves round the sun simultaneously around the rotation of bracket axis and around main shaft, so as to drive main axis by upper driving wheel；
The second-order differential differential reducing device is mounted on bracket wheel lower part, including difference under lower fixed wheel, lower driving wheel and at least two
Wheel, the lower fixed wheel and lower driving wheel are reference diameter is identical, the gear teeth are towards the ring gear in axle center, the gear teeth of lower fixed wheel and lower driving wheel
The gear teeth tooth form it is same or similar, lower fixed wheel and lower driving wheel adjacent coaxial are installed, and lower driving wheel is located at lower fixed wheel lower part, lower fixed wheel
Periphery is fixedly connected by screw with casing, and lower driving wheel is mounted on by driving wheel frame on main shaft, and the lower difference wheel passes through bearing
On the bottom bracket axis of bracket wheel lower part, original state at present at least one gear teeth of difference wheel simultaneously with lower fixed wheel and under
The gear teeth of the ring gear of driving wheel are meshed；
By lower outer shaft gear outer shaft is driven to rotate during electric motor starting, outer shaft drives bracket wheel to rotate by upper outer shaft gear, support
The lower difference wheel of frame wheel lower part revolves round the sun simultaneously around the rotation of bottom bracket axis and around main shaft, so as to drive main axis by lower driving wheel；
The lower fixed wheel is identical with the number of teeth of upper fixed wheel, and the lower driving wheel is identical with the number of teeth of upper driving wheel, lower driving wheel and upper driving wheel
The number of teeth be respectively greater than the number of teeth of lower fixed wheel and upper fixed wheel, i.e., upper fixed wheel or the tooth pitch radian B2 of lower fixed wheel and upper driving wheel or lower dynamic
The difference of the tooth pitch radian B1 of wheel is the constant B, i.e. B=B2-B1 ＜ 1 less than 1；
The tooth pitch radian B2 of the upper fixed wheel or lower fixed wheel refer to fixed wheel or adjacent two gear teeth of lower fixed wheel with it is heart-shaped in ring gear
Into angle, the tooth pitch radian B1 of upper driving wheel or lower driving wheel refer to driving wheel or adjacent two gear teeth of lower driving wheel with it is heart-shaped in ring gear
Into angle, unit for degree；
The upper fixed wheel is different from the phase that lower fixed wheel is installed, and phase difference 1/2B, the upper difference wheel and lower difference wheel are equal
Even distribution.
Its further technical solution is：The shaft staggered cloth of bracket of the bottom bracket axis and top of the bracket wheel lower part
It puts, when upper and lower difference wheel is 2, the arranged direction of upper and lower bracket axis is mutually perpendicular to.
The upper fixed wheel, upper driving wheel, lower fixed wheel and lower driving wheel the gear teeth tooth form it is same or similar, shape or be circular arc
Shape is polygon or is involute, cycloid or hyperbola.
Due to the adoption of the above technical scheme, compared with prior art, a kind of of the present invention had segmented differential differential speed reducer both
Possess《A kind of differential differential speed reducer》The following advantageous effects possessed：
1. precision is high, torsion stiffness is big, and under nominal torque, gap return difference is small, is driven to drive part by part, backhaul gap（It returns
Difference）It is small；
2. gear range is big, by adjusting differential spacing or reducing the number of teeth of sun gear, the reduction ratio of bigger can be realized；
3. transmission efficiency, transfer similary torque with it is small during power；
4. having the characteristics that output torque is big again simultaneously, the requirement of precision and output torque can be taken into account simultaneously：I and II differential is poor
Once, constantly Xun Huan reaches subdivision differential for dynamic deceleration device difference differential driving, reaches real on the premise of same torque is kept
Existing higher output accuracy；
If this example is two times of subdivision differential differential speed reducers, fixed wheel is 24 teeth（B2 is 15 degree）, driving wheel is 25 teeth（B1 is 14.4
Degree）, differential coefficient is 0.6 degree（B=B2-B1=0.6 degree）, i.e., 0.6 degree of rotation is once generated per difference, fixed wheel in centre, on
Portion and lower part are all driving wheels, and flute profile is the same, and upper and lower fixed wheel is fixed on outer wall, and upper and lower driving wheel is all fixed on main shaft, can do work,
But initial phase is different（1/2B, the half for deviating differential coefficient are differed, this example is 0.3 degree）, when top or lower part are without difference
When dividing, transmission gear is in gap active state, and when top starts difference to 0.3 degree, lower part starts difference；Instantly
When portion starts difference to 0.6 degree, top starts difference again, so alternately, achievees the purpose that subdivision, it is achieved thereby that precision
For 0.3 degree of output, i.e., backhaul difference is limited in 0.3 degree.
In the following, a kind of technical characteristic for segmenting differential differential speed reducer of the present invention is made into one in conjunction with the accompanying drawings and embodiments
The explanation of step.
Description of the drawings
Fig. 1~Fig. 2 is a kind of structure diagram for segmenting differential differential speed reducer of the present invention：
Fig. 1 is front view, and Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3~Fig. 8 is a kind of transmission mechanism structure diagram for segmenting differential differential speed reducer of the present invention：
Fig. 3 is the bottom view of Fig. 4, and Fig. 4 is front view, and Fig. 5 is the top view of Fig. 4, and Fig. 6 is upward three-dimensional effect diagram, and Fig. 7 is
Sectional view, Fig. 8 are downward three-dimensional effect diagram；
Fig. 9~Figure 10 is bracket wheel and upper and lower difference wheel attachment structure schematic diagram：
Fig. 9 is front view, and Figure 10 is top view；
Figure 11~Figure 15 is bracket wheel and upper and lower difference wheel and upper outer shaft gear attachment structure schematic diagram：
Figure 11 is sectional view, and Figure 12 is the bottom view of Figure 13, and Figure 13 is front view, and Figure 14 is the top view of Figure 13, and Figure 15 is vertical
Body design sketch；
Figure 16~Figure 18 is pin plug reducer structure schematic diagram：
Figure 16 is front view, and Figure 17 is the left view of Figure 16, and Figure 18 is the tooth pitch radian schematic diagram of price fixing；
Figure 19~Figure 20 is a kind of differential differential speed reducer structure diagram：
Figure 19 is front view, and Figure 20 is three-dimensional effect diagram.
In Fig. 1~Figure 15
1-motor, 2-lower outer shaft gear, 3-motor gear, 4-outer shaft, 5-upper outer shaft gear, 6-bracket wheel, 7-pop-up
Frame axis, 8-upper fixed wheel, 9-bearing, 10-upper difference wheel, 11-upper driving wheel, 12-main shaft, 13-casing, 14-screw,
15-lower difference wheel, 16-lower fixed wheel, 17-lower driving wheel, 18-bottom bracket axis；
In Figure 16~Figure 18；
21-Moving plate, 22-price fixing, 23-pin plug, 24-shaft, 25-bearing；
In Figure 19~Figure 20：
30-motor input shaft bore, 31-output shaft, 32-driving wheel, 33-differential wheel shaft, 34-differential bracket, 35-differential
Wheel, 36-fixed wheel, 37-planetary gear, 38-planet wheel spindle, 39-sun gear.
Specific embodiment
Embodiment one
A kind of subdivision differential differential speed reducer, including casing 13, motor 1 and the differential differential reducing device in casing；
The differential differential reducing device includes a nthdifferential differential reducing device and second-order differential differential reducing device, the level-one are micro-
Differential deceleration device is mounted on the upper strata of casing, and the second-order differential differential reducing device is mounted on the lower floor of casing, level-one
Differential differential reducing device is sequentially connected by bracket wheel 6 and second-order differential differential reducing device；
The one nthdifferential differential reducing device includes difference wheel 10 in upper fixed wheel 8, upper driving wheel 11 and at least two, described fixed
Wheel 8 and upper driving wheel 11 are reference diameter is identical, the gear teeth are towards the ring gear in axle center, the gear teeth of upper fixed wheel and the gear teeth of upper driving wheel
Tooth form is same or similar and the number of teeth is different, and upper fixed wheel 8 is installed with upper 11 adjacent coaxial of driving wheel, and upper driving wheel is located at upper fixed wheel top,
Upper fixed wheel periphery is fixedly connected by screw with casing 13, and upper driving wheel is mounted on by driving wheel frame on main shaft 12, the bracket wheel
6 are mounted on by bearing on the main shaft of upper 8 lower part of fixed wheel, and the upper difference wheel is mounted on 6 top of bracket wheel by the way that bearing 9 is well-balanced
Bracket axis 7 on, during original state upper 10 at least one gear teeth of difference wheel simultaneously with upper fixed wheel 8 and the ring gear of upper driving wheel 11
The gear teeth be meshed；
The bracket wheel 6 is sequentially connected with the upper outer shaft gear 5 mounted on casing one side, the upper outer shaft gear 5 and casing one
The outer shaft 4 of side connects, the lower outer shaft gear 2 of 4 lower end of outer shaft connection, lower outer shaft gear 2 and the motor of the motor 1 positioned at casing lower part
Gear 3 is sequentially connected；By lower outer shaft gear 2 outer shaft 4 is driven to rotate during electric motor starting, outer shaft 4 is driven by upper outer shaft gear 5
Bracket wheel 6 rotates, and the upper difference wheel on 6 top of bracket wheel revolves round the sun simultaneously around 7 rotation of bracket axis and around main shaft, so as to by upper dynamic
11 drive main shaft 12 of wheel rotates；
The second-order differential differential reducing device is mounted on 6 lower part of bracket wheel, including lower fixed wheel 16, lower driving wheel 17 and at least two
Lower difference wheel 15, the lower fixed wheel and lower driving wheel are reference diameter is identical, the gear teeth are towards the ring gear in axle center, the gear teeth of lower fixed wheel
Same or similar from the tooth form of the gear teeth of lower driving wheel and the number of teeth is different, lower fixed wheel is installed with lower driving wheel adjacent coaxial, lower driving wheel position
In lower fixed wheel lower part, lower fixed wheel periphery is fixedly connected by screw with casing 13, and lower driving wheel is mounted on main shaft 12 by driving wheel frame
On, the lower difference wheel is well-balanced on the bottom bracket axis 18 of 6 lower part of bracket wheel by bearing, original state difference wheel at present
15 at least one gear teeth are meshed simultaneously with the gear teeth of lower fixed wheel and the ring gear of lower driving wheel；
By lower outer shaft gear 2 outer shaft 4 is driven to rotate during electric motor starting, outer shaft 4 drives 6 turns of bracket wheel by upper outer shaft gear 5
Dynamic, the lower difference wheel of 6 lower part of bracket wheel revolves round the sun simultaneously around 18 rotation of bottom bracket axis and around main shaft, so as to be driven by lower driving wheel 17
Main axis；
The lower fixed wheel 16 is identical with the number of teeth of upper fixed wheel 8, and the lower driving wheel 17 is identical with the number of teeth of upper driving wheel 11, upper driving wheel 11
The number of teeth be more than the number of teeth of upper fixed wheel 8, the number of teeth of lower driving wheel 17 is more than the tooth of the number of teeth of lower fixed wheel 16, i.e., upper fixed wheel or lower fixed wheel
The difference of tooth pitch radian B1 away from radian B2 and upper driving wheel or lower driving wheel is the constant B, i.e. B=B2-B1 ＜ 1 less than 1；
The tooth pitch radian B2 of the upper fixed wheel or lower fixed wheel refer to fixed wheel or adjacent two gear teeth of lower fixed wheel with it is heart-shaped in ring gear
Into angle, the tooth pitch radian B1 of upper driving wheel or lower driving wheel refer to driving wheel or adjacent two gear teeth of lower driving wheel with it is heart-shaped in ring gear
Into angle, unit for degree；
In the present embodiment, the value of constant B is 0.6, and the number of teeth of upper driving wheel and lower driving wheel is 25, and tooth pitch radian B1 is 1.44, on
The number of teeth of fixed wheel and lower fixed wheel is 24, and tooth pitch radian B2 is 1.5, the tooth pitch radian B2 of the upper fixed wheel and tooth pitch radian B1 of upper driving wheel
Poor B=1.5-1.44=0.6；The phase shifting 1/2B of upper and lower difference wheel installation, i.e., 0.3 degree；The upper fixed wheel 8 and lower fixed wheel
The phase of 16 installations is different, and phase difference 1/2B, upper difference wheel 10 is uniformly distributed with lower difference wheel 15.
2 bottom bracket axis of 6 lower part of bracket wheel and 27 interlaced arrangements of bracket axis on top, upper and lower bracket axis
Arranged direction be mutually perpendicular to（Such as bracket axis lateral arrangement, then bottom bracket axis is longitudinally arranged, thus upper difference wheel and lower difference
The arrangement of wheel is mutually perpendicular to）.
The upper fixed wheel, upper driving wheel, lower fixed wheel and lower driving wheel the gear teeth tooth form it is same or similar, shape or be circular arc
Shape is polygon or is involute, cycloid or hyperbola.
The above content is combine specific embodiment further explanation made for the present invention, it is impossible to assert the present invention's
Specific implementation is confined to this, for the technical field of the invention, without departing from the inventive concept of the premise, makes simple
Deduction or replace, said mechanism should all be considered as protection scope of the present invention.
Conversion as above-described embodiment：
1. constant B influences the precision of differential differential every time, precision is more big then more smooth, and the value of the constant B can be according to reality
Depending on needing, the value of general B is 0.6,0.5,0.4,0.3,0.25,0.2 or 0.15 etc., and numerical value is smaller, differential spacing is smaller
Its resolution ratio（Precision）It is higher；This figure show 2 times of subdivisions, if necessary when can realize 3 times, 4 times, 5 times, 6 times etc. of subdivision,
The subdivision bigger precision of multiple is higher but volume is bigger；
2. the upper and lower difference wheel of the present embodiment sets each two, the number of difference wheel is influenced by constant B, in the case of permission
Set multiple difference wheels that output can be made more steady.
Operation principle
Motor gear 3 on motor 1 drives lower outer shaft gear 2, then drives outer shaft 4 and upper outer shaft gear 5, by power transmission to support
Frame wheel 6 drives the upper and lower bracket axis 7 being fixed thereon to rotate, and 7 upper end of bracket axis is equipped with bearing 9, and upper and lower difference wheel is mounted on
On bearing 9, in the rotation, by driving wheel 11 in upper 8 differential driving of fixed wheel, upper driving wheel 11 is connected to main shaft to upper difference wheel 10
On 12, when upper wheel rotation, will rotate main shaft 12, and upper fixed wheel 8 is fixed with shell 13 by screw 14.Lower difference wheel 15 and upper
Difference wheel 10 staggers certain angle（90 degree）, by fixed wheel under difference 16 and lower driving wheel 17, still deliver power to main shaft
On 12；
Once, once, then top differential drives again for differential driving again for lower part, and constantly it is micro- to reach subdivision for Xun Huan for top differential driving
Point purpose, such as the differential precision of single differential retarder is 0.2 degree, and top and the bottom intermesh insertion, then realize
The overall subdivision for exporting 0.1 degree namely output shaft realize 0.1 degree of output, therefore real on the premise of same torque is kept
Higher output accuracy is showed.
If the present embodiment is two times of subdivision differential differential speed reducers, upper and lower fixed wheel is 24 teeth（B2 is 15 degree）, it is upper and lower dynamic
It takes turns as 25 teeth（B1 is 14.4 degree）, differential coefficient is 0.6 degree（B=B2-B1=0.6 degree）, i.e., once generate rotation 0.6 per difference
Degree, for upper and lower fixed wheel between upper and lower driving wheel, upper and lower fixed wheel is fixed on outer wall, upper and lower fixed wheel flute profile is identical but initial phase not
Together（B/2, the half for deviating differential coefficient are differed, this example is 0.3 degree）；
Upper and lower driving wheel is all fixed on main shaft, can do work, and when top or lower part are without difference, transmission gear is in
Gap active state, when top starts difference to 0.3 degree, lower part starts difference；When lower part starts difference to 0.6 degree,
Top starts difference again, so alternately, achievees the purpose that subdivision, it is achieved thereby that precision is 0.3 degree of output, can will return
Poor clearance control is in 0.3 degree.
（As the engine of multi cylinder, multi-cylinder is all fixedly connected on main crankshaft its principle, but due to initial phase not
Together, some cylinder air-breathings, some cylinder exhausts, some cylinder actings, so that engine output is evenly）.
Claims (3)
1. a kind of subdivision differential differential speed reducer, including casing（13）, motor（1）With the differential differential reducing in casing
Device；It is characterized in that：The differential differential reducing device includes a nthdifferential differential reducing device and second-order differential is differential subtracts
Speed variator, the nthdifferential differential reducing device are mounted on the upper strata of casing, the second-order differential differential reducing device installation
In the lower floor of casing, a nthdifferential differential reducing device passes through bracket wheel（6）It is sequentially connected with second-order differential differential reducing device；
The one nthdifferential differential reducing device includes upper fixed wheel（8）, upper driving wheel（11）With difference wheel at least two（10）, institute
State fixed wheel（8）With upper driving wheel（11）For reference diameter is identical, the gear teeth towards axle center ring gear, the gear teeth of upper fixed wheel with it is upper dynamic
The tooth form of the gear teeth of wheel is same or similar and the number of teeth is different, upper fixed wheel（8）With upper driving wheel（11）Adjacent coaxial is installed, upper driving wheel position
In upper fixed wheel top, upper fixed wheel periphery passes through screw and casing（13）It is fixedly connected, upper driving wheel is mounted on main shaft by driving wheel frame
（12）On, the bracket wheel（6）Upper fixed wheel is mounted on by bearing（8）On the main shaft of lower part, the upper difference wheel passes through bearing
（9）Mounted on bracket wheel（6）The bracket axis on top（7）On, upper difference wheel during original state（10）At least one gear teeth is same
When with upper fixed wheel（8）With upper driving wheel（11）The gear teeth of ring gear be meshed；
The bracket wheel（6）With the upper outer shaft gear mounted on casing one side（5）It is sequentially connected, the upper outer shaft gear and casing
The outer shaft of one side（4）Connection, the lower outer shaft gear of outer shaft lower end connection（2）, lower outer shaft gear with positioned at casing lower part motor（1）
Motor gear（3）It is sequentially connected；Outer shaft is driven by lower outer shaft gear during electric motor starting（4）It rotates, outer shaft passes through upper outer shaft
Gear（5）Drive bracket wheel（6）It rotates, bracket wheel（6）The upper difference wheel on top is simultaneously around bracket axis（7）Rotation and around main shaft
Revolution, so as to pass through upper driving wheel（11）Drive main shaft（12）It rotates；
The second-order differential differential reducing device is mounted on bracket wheel（6）Lower part, including lower fixed wheel（16）, lower driving wheel（17）Extremely
Few 2 lower difference wheels（15）, the lower fixed wheel and lower driving wheel for reference diameter is identical, the gear teeth towards axle center ring gear, it is lower fixed
The gear teeth of wheel are same or similar from the tooth form of the gear teeth of lower driving wheel and the number of teeth is different, and lower fixed wheel is installed with lower driving wheel adjacent coaxial,
Lower driving wheel is located at lower fixed wheel lower part, and lower fixed wheel periphery passes through screw and casing（13）It is fixedly connected, lower driving wheel is pacified by driving wheel frame
Mounted in main shaft（12）On, the lower difference wheel is mounted on bracket wheel by bearing（6）The bottom bracket axis of lower part（18）On, initial shape
State difference wheel at present（15）At least one gear teeth is meshed simultaneously with the gear teeth of lower fixed wheel and the ring gear of lower driving wheel；
Pass through lower outer shaft gear during electric motor starting（2）Drive outer shaft（4）It rotates, outer shaft passes through upper outer shaft gear（5）Drive bracket
Wheel（6）It rotates, bracket wheel（6）The lower difference wheel of lower part is simultaneously around bottom bracket axis（18）Rotation is simultaneously revolved round the sun around main shaft, so as to pass through
Lower driving wheel（17）Drive main axis；
The lower fixed wheel（16）With upper fixed wheel（8）The number of teeth it is identical, the lower driving wheel（17）With upper driving wheel（11）The number of teeth it is identical,
Upper driving wheel（11）With lower driving wheel（17）The number of teeth be respectively greater than upper fixed wheel（8）With lower driving wheel（17）The number of teeth, i.e., upper fixed wheel or under
The tooth pitch radian B2 of fixed wheel is the constant B, i.e. B=B2-B1 ＜ less than 1 with the difference of upper driving wheel or the tooth pitch radian B1 of lower driving wheel
1；
The tooth pitch radian B2 of the upper fixed wheel or lower fixed wheel refer to fixed wheel or adjacent two gear teeth of lower fixed wheel with it is heart-shaped in ring gear
Into angle, the tooth pitch radian B1 of upper driving wheel or lower driving wheel refer to driving wheel or adjacent two gear teeth of lower driving wheel with it is heart-shaped in ring gear
Into angle, unit for degree；
The upper fixed wheel（8）With lower fixed wheel（16）The phase of installation is different, phase difference 1/2B, the upper difference wheel（10）With
Lower difference wheel（15）It is uniformly distributed.
2. a kind of subdivision differential differential speed reducer according to claim 1, it is characterised in that：The bracket wheel（6）Lower part
Bottom bracket axis and top bracket axis（7）Interlaced arrangement, when upper and lower difference wheel is respectively 2, the cloth of upper and lower bracket axis
Direction is put to be mutually perpendicular to.
3. a kind of subdivision differential differential speed reducer according to claim 2, it is characterised in that：The upper fixed wheel, upper driving wheel,
The tooth form of the gear teeth of lower fixed wheel and lower driving wheel is same or similar, shape or for it is arc-shaped be polygon or be involute,
Cycloid or hyperbola.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079034.2A CN108087517B (en) | 2018-01-26 | 2018-01-26 | Subdivision differential speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810079034.2A CN108087517B (en) | 2018-01-26 | 2018-01-26 | Subdivision differential speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108087517A true CN108087517A (en) | 2018-05-29 |
| CN108087517B CN108087517B (en) | 2022-03-22 |
Family
ID=62182437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810079034.2A Active CN108087517B (en) | 2018-01-26 | 2018-01-26 | Subdivision differential speed reducer |
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| Country | Link |
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| CN (1) | CN108087517B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864893A (en) * | 1986-07-28 | 1989-09-12 | Kabushiki Kaisha Toshiba | Planetary gear having its orbital gears out of phase |
| US4942781A (en) * | 1988-01-06 | 1990-07-24 | Kabushiki Kaisha Toshiba | Differential planet gear unit |
| CN1629513A (en) * | 2004-08-06 | 2005-06-22 | 李本平 | Planetary differential worm stepless speed regulation soft start moment limiting device |
| CN101191531A (en) * | 2006-11-28 | 2008-06-04 | 欧仁伟 | Planet decelerating method and device for differential gear |
| CN101328959A (en) * | 2007-06-20 | 2008-12-24 | 沈阳元通传动装置制造有限公司 | Stepless automatic transmission and differential gear transmission system using the same |
| CN104989803A (en) * | 2015-08-03 | 2015-10-21 | 许奉成 | Differential planetary reducer |
| CN107355524A (en) * | 2017-07-20 | 2017-11-17 | 柳州市罗伯特科技有限公司 | A kind of differential differential speed reducer |
| CN207762214U (en) * | 2018-01-26 | 2018-08-24 | 柳州市怀远数控技术开发有限公司 | A kind of subdivision differential differential speed reducer |
-
2018
- 2018-01-26 CN CN201810079034.2A patent/CN108087517B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4864893A (en) * | 1986-07-28 | 1989-09-12 | Kabushiki Kaisha Toshiba | Planetary gear having its orbital gears out of phase |
| US4942781A (en) * | 1988-01-06 | 1990-07-24 | Kabushiki Kaisha Toshiba | Differential planet gear unit |
| CN1629513A (en) * | 2004-08-06 | 2005-06-22 | 李本平 | Planetary differential worm stepless speed regulation soft start moment limiting device |
| CN101191531A (en) * | 2006-11-28 | 2008-06-04 | 欧仁伟 | Planet decelerating method and device for differential gear |
| CN101328959A (en) * | 2007-06-20 | 2008-12-24 | 沈阳元通传动装置制造有限公司 | Stepless automatic transmission and differential gear transmission system using the same |
| CN104989803A (en) * | 2015-08-03 | 2015-10-21 | 许奉成 | Differential planetary reducer |
| CN107355524A (en) * | 2017-07-20 | 2017-11-17 | 柳州市罗伯特科技有限公司 | A kind of differential differential speed reducer |
| CN207762214U (en) * | 2018-01-26 | 2018-08-24 | 柳州市怀远数控技术开发有限公司 | A kind of subdivision differential differential speed reducer |
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|---|---|
| CN108087517B (en) | 2022-03-22 |
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Effective date of registration: 20221230 Address after: Floor 20, Shop F-1, Jinhu International Building, south of Yongfu West Street, Qinzhou, Guangxi Zhuang Autonomous Region, 535000 Patentee after: Guangxi Dashihui Technology Co.,Ltd. Address before: 545007 No. 414, 4th Floor, Building 7, 12 Fuxin Road, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee before: LIUZHOU HUAIYUAN CNC TECHNOLOGY DEVELOPMENT Co.,Ltd. |