CN206889591U - A kind of planet gear reducing mechanism and its decelerator - Google Patents
A kind of planet gear reducing mechanism and its decelerator Download PDFInfo
- Publication number
- CN206889591U CN206889591U CN201720815051.9U CN201720815051U CN206889591U CN 206889591 U CN206889591 U CN 206889591U CN 201720815051 U CN201720815051 U CN 201720815051U CN 206889591 U CN206889591 U CN 206889591U
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- China
- Prior art keywords
- planetary gear
- gear
- external toothing
- planetary
- reducing mechanism
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Abstract
The utility model discloses a kind of planet gear reducing mechanism and its decelerator.A kind of planet gear reducing mechanism, including sun gear, several first planetary gears engaged with sun gear, and the first external toothing engaged with the first planetary gear；First planetary gear is distal to sun gear one end and is provided with the second planetary gear, and the first planetary gear is coaxially fixed with the second planetary gear；Second planetary gear engages with the second external toothing being provided with.The utility model, which is slowed down the rotary motion of force piece by planet gear reducing mechanism, to be exported.First planetary gear outer end of planet gear reducing mechanism is provided with the output power after the first external toothing revolution motion the second external toothing rotary motion of driving, the rotary motion as deceleration of the second external toothing of the second coaxial planetary gear, the first planetary gear and the second planetary gear.The utility model gearratio is big, compact-sized, small volume, is easy to assemble.
Description
Technical field
The utility model is related to small-sized retarding device technical field, more specifically refer to a kind of planet gear reducing mechanism and
Its decelerator.
Background technology
With making rapid progress for science and technology, the electronic device requirement in the field such as robot, toy, medicine equipment is more and more smart
Carefully, precisely.Among miniature precision instrument, decelerator is often used, but the size of decelerator influences whether the whole of instrument
Body volume.
Traditional reduction box, due to the influence of step of reduction and technique, it is impossible to which reduction box is made too small；But in reality
In, step of reduction height is generally required, volume small decelerator again.
Typically, motor is all to have larger rotating speed, the output end driving coupling that many instruments can not directly with motor, institute
Be required for couple a speed changer speed of motor is lowered, then with the power intake driving coupling of instrument.Pass
The speed changer of system is excessive in general volume in order to reach the speed change of higher plate number, is not suitable with the instrument that volume requires.
Thus, it is necessary to consider a kind of decelerator of planetary wheeling mechanism.
Utility model content
The defects of the purpose of this utility model is to overcome prior art, there is provided a kind of planet gear reducing mechanism and its deceleration
Device.
To achieve the above object, the utility model uses following technical scheme：
A kind of planet gear reducing mechanism, including sun gear, several first planetary gears engaged with sun gear, and with first
First external toothing of planetary gear engagement；First planetary gear is distal to sun gear one end and is provided with the second planetary gear, and the first planet
Wheel is coaxially fixed with the second planetary gear；Second planetary gear engages with the second external toothing being provided with.
Its further technical scheme is：The first described planetary gear is coaxially fixed with the second planetary gear, to form planetary gear
Group；The planetary gear set rotation is connected in the fixed mount being provided with；The sun gear input power, the first planetary gear rotation of driving is simultaneously
Revolved round the sun around the first external toothing, and power is exported by second the second external toothing of planet wheel drive.
Its further technical scheme is：Described fixed mount include be rotatably connected with the first planetary gear free end first consolidate
Fixed board, and the second fixed plate coupled with the rotation of the second planetary gear free end；First fixed plate is provided with some towards the same side
Individual first contiguous block；Second fixed plate is provided with and equal numbers of second contiguous block of the first contiguous block towards the same side；It is described
First contiguous block is fixed in opposite directions with the second contiguous block, so that the first fixed plate surrounds accommodating chamber with the second fixed plate；The planet
Wheel is mounted in accommodating chamber；Described first solid plate is provided with the through hole through sun gear.
Its further technical scheme is：The number of teeth of the first described planetary gear be at least the number of teeth one of the second planetary gear again with
On.
Its further technical scheme is：The first described planetary gear is circumferentially disposed；The sun gear is located at the first of ring
Planetary gear center and engaged with the first planetary gear.
Its further technical scheme is：The second described external toothing is internal gear；The second external toothing outer end is provided with dynamic
Power output shaft.
A kind of decelerator with planetary mechanism, including above-mentioned planet gear reducing mechanism, passed with planet gear reducing mechanism
The force piece of dynamic connection；The force piece is bordering on clutch end and is provided with fixed seat；Outside the first of the planet gear reducing mechanism
Gear ring is fixedly connected with fixed seat；The second external toothing periphery rotation of the planet gear reducing mechanism is connected in provided with support base.
Its further technical scheme is：Described force piece is motor；The sun gear passes through provided with connecting shaft and motor
Pto connection.
Its further technical scheme is：Described support base one end is fixedly connected with fixed seat；If the fixed seat is provided with
Dry buckle is raised, and support base is provided with and the raised neck coupled of buckle.
The beneficial effect of the utility model compared with prior art is：A kind of planet gear reducing mechanism of the utility model and its
Decelerator, the rotary motion of force piece is slowed down by planet gear reducing mechanism and exported.First planet of planet gear reducing mechanism
Take turns outer end and be provided with the second coaxial planetary gear, the first planetary gear and the second planetary gear around the first external toothing revolution motion driving the
Two external toothing rotary motions, the rotary motion of the second external toothing are the output power after slowing down.The utility model gearratio is big,
It is compact-sized, small volume, it is easy to assemble.
Brief description of the drawings
Fig. 1 is a kind of three-dimensional structure diagram of planet gear reducing mechanism of the utility model；
Fig. 2 is a kind of explosive view of planet gear reducing mechanism of the utility model；
Fig. 3 is a kind of planetary gear set of planet gear reducing mechanism of the utility model and mounting bracket explosive view；
Fig. 4 is a kind of three-dimensional structure diagram of the decelerator with planetary mechanism of the utility model；
Fig. 5 is a kind of explosive view of the decelerator with planetary mechanism of the utility model；
Fig. 6 is a kind of support base three-dimensional structure diagram of the decelerator with planetary mechanism of the utility model；
Fig. 7 is a kind of fixed seat three-dimensional structure diagram of the decelerator with planetary mechanism of the utility model；
Fig. 8 is a kind of three-dimensional knot of the eccentric shaft of the decelerator with planetary mechanism of the utility model located at the second external toothing
Composition；
Fig. 9 is a kind of left view provided with magnet piece of the decelerator with planetary mechanism of the utility model；
Figure 10 is Fig. 9 mid section figure；
Figure 11 is a kind of sun gear inside structure provided with magnet piece of decelerator with planetary mechanism of the utility model
Figure；
Figure 12 is the centre that a kind of power output shaft of the decelerator with planetary mechanism of the utility model is provided with eccentric shaft
Sectional view；
Figure 13 is a kind of fixing hole of second external toothing of the decelerator with planetary mechanism of the utility model and matches somebody with somebody repeated hole
Structure chart.
Embodiment
In order to more fully understand technology contents of the present utility model, with reference to specific embodiment to skill of the present utility model
Art scheme is further described and illustrated, but is not limited to this.
As shown in figure 1 to figure 13, it is the concrete structure view of the present embodiment.
As shown in Figure 1 to Figure 3, a kind of planet gear reducing mechanism Q, including sun gear 10, engaged with sun gear 10 some
Individual first planetary gear 11, and the first external toothing 12 engaged with the first planetary gear 11.First planetary gear 11 is distal to sun gear 10 1
End is provided with the second planetary gear 13, and the first planetary gear 11 is coaxially fixed with the second planetary gear 13.Second planetary gear 13 is with being provided with
Second external toothing 14 engages.First planetary gear 11 and the second planetary gear 13 have identical linear velocity.Wherein, the tooth of sun gear 10
The number of teeth of the number less than the first planetary gear 11.Sun gear 10 drives the rotation of the first planetary gear 11, and the first planetary gear 11 is also around the
One external toothing 12 revolves round the sun, due to the first planetary gear 11 with the second planetary gear 13 is coaxial is fixedly connected with identical linear velocity, institute
The second external toothing 14 is driven to rotate so as to export low-speed motion with the revolution motion of the second planetary gear 13, to reach the purpose of deceleration.
In moderating process, the first external toothing 12 and the second external toothing 14 have relative motion.
Preferably, sun gear 10 is provided with the connecting shaft 18 coupled with force piece clutch end.
Preferably, in the production process of reality, the first planetary gear 11 and the second planetary gear 13 are integrated injection molding, carry
High manufacturing accuracy, convenient installation.
Wherein, in order to improve accuracy and reduce volume, the modulus of gear can reach m=0.07-0.50 (or with
On), precision can reach 0.005mm.
Wherein, the end face that each first planetary gear 11 is distal to sun gear 10 is designed with the second planetary gear 13.
First planetary gear 11 is coaxially fixed with the second planetary gear 13, to form planetary gear set 15.The rotation connection of planetary gear set 15
It is connected to the fixed mount 16 being provided with.The input power of sun gear 10, drive the rotation of the first planetary gear 11 and revolved round the sun around the first external toothing 12,
And the second external toothing 14 is driven to export low speed power by the second planetary gear 13.Fixed mount 16 is with planetary gear set 15 around the first external tooth
The speed of the revolution of circle 12 rotates.
Specifically, fixed mount 16 includes the first fixed plate 161 for being rotatably connected with the free end of the first planetary gear 11, and with the
Second fixed plate 162 of the free end of two planetary gear 13 rotation connection, the i.e. both ends of planetary gear set 15 rotation are connected in fixed mount 16.The
One fixed plate 161 is provided with several first contiguous blocks 163 towards the same side.Second fixed plate 162 is provided with towards the same side to be connected with first
Connect equal numbers of second contiguous block 164 of block 163.First contiguous block 163 is fixed in opposite directions with the second contiguous block 164, so that first
The fixed plate 162 of fixed plate 161 and second surrounds accommodating chamber 165.Planetary gear set 15 is in accommodating chamber 165, and the first planet
The engaging portion of the external toothing 12 of wheel 11 and first extends to the outside of fixed mount 16, and the second planetary gear 13 is nibbled with the second external toothing 14
Conjunction extends partially into the outside of fixed mount 16.First solid plate is provided with the through hole 166 through sun gear 10.
Preferably, the number of teeth of the first planetary gear 11 is at least more than one times of the number of teeth of the second planetary gear 13, to reach into one
Walk the purpose slowed down.
In the present embodiment, the first number of planetary gear 11 is three, and circumferentially disposed.Sun gear 10 is located at the first row of ring
The center of star-wheel 11 and engaged with the first planetary gear 11.First planetary gear 11 is circumferentially disposed, and the center of sun gear 10, make it is mutual it
Between stress balance, motion stabilization.
In other embodiment, the first planetary gear 11 can be one, two or more than three.
Wherein, the second external toothing 14 is internal gear, is arranged on the outside of fixed mount 16, and engaged with the second planetary gear 13.
The outer end of second external toothing 14 is provided with power output shaft 17, wherein, power output shaft 17 is fixed on the second external toothing 14, with
Second external toothing 14 moves, i.e. the second external toothing 14 is identical with the motion of power output shaft 17 linear velocity.
As shown in 4 to Fig. 7, a kind of decelerator with planetary mechanism, including above-mentioned planet gear reducing mechanism Q, with row
The force piece 20 of star wheel reducer structure Q driving couplings.Force piece 20 is bordering on clutch end and is provided with fixed seat 30.Planetary gear slows down
Mechanism Q the first external toothing 12 and fixed seat 30 is fixedly connected.The planet gear reducing mechanism Q periphery of the second external toothing 14 rotation connection
It is connected to and is provided with support base 40.
Force piece 20 is motor.Sun gear 10 provided with connecting shaft 18 with the pto of motor by coupling.Its
In, the power output shaft of motor is flat axle, and connecting shaft 18 is provided with the flat axis hole 181 being mutually matched with flat axle profile.
In other embodiment, the power output shaft of force piece 20 can directly with the driving coupling of sun gear 10, without logical
Connecting shaft 18 is crossed to couple.
The one end of support base 40 is fixedly connected with fixed seat 30.Fixed seat 30 is provided with several buckle projections 31, and support base
40 are provided with the neck 41 coupled with buckle projection 31.Support base 40 is fixed on by the cooperation of buckle projection 31 and neck 41
In reservation 30.
Preferably, support base 40 is provided with inner chamber 42, and the second external toothing 14 moves in the internal rotation of inner chamber 42, and support base 40 is to two
External toothing 14 plays a part of support.Support base 40 is provided with the mounting groove 43 of convenient installation, and fixed seat 30 is provided with and mounting groove 43
It is mutually matched the installation projection 32 of installation.During installation, installation projection 32 sticks into mounting groove 43, and support base 40 is with fixing
The relative position of seat 30 is assured that.
In whole device, gearratio can reach i=1：30-1000, its structure with the general reduction box of same gearratio
It is much smaller.
The concrete operating principle of decelerator：The power output shaft of motor delivers power to sun gear 10；Sun gear 10 drives
Move the spinning motion of the first planetary gear 11 and around the revolution motion of the first external toothing 12 being fixedly connected in fixed seat 30；Second planet
Wheel 13 is coaxially fixed with the first planetary gear 11, has identical linear velocity, so that the second planetary gear 13 has with the first planetary gear 11
There are identical spinning motion and revolution motion, wherein the revolution motion of the first planetary gear 11 drives the second external toothing 14 to rotate；By
Differ that (preferable, the number of teeth of the first planetary gear 11 is more than the second planet in the second planetary gear 13 and the number of teeth of the first planetary gear 11
The number of teeth of wheel 13), there is also slowing effect for the second planetary gear 13 and the second external toothing 14；The rotation of second external toothing 14 drives dynamic
Power output shaft 17 rotates, so that power output shaft 17 exports low-speed motion.
Wherein, sun gear 10, the second planetary gear 13, the first planetary gear can be changed according to the requirement of actual speed and volume
11st, the number of teeth of the first external toothing 12 and the second external toothing 14, so as to change the number of steps of speeds of whole speed changer.
In other embodiment, as shown in figure 8, the eccentric setting of 17 and second external toothing of power output shaft 14, inclined to be formed
The planet gear reducing mechanism Q of heart output, to adapt to the demand of special occasions.
In other embodiment, as shown in Fig. 9-Figure 11, sun gear 10 is provided with mounting hole 101, and mounting hole 101 is with moving
The output shaft driving coupling of power part 20.The inwall of mounting hole 101, which is provided with, to be used to prevent sun gear 10 from mutually axially moving with output shaft
Magnet piece 102.Magnet piece 102 includes the first radial part 1021 and the second radial part 1022.First radial part 1021 and second
Radial part 1022 is mutually perpendicular to, to form T-type structure.Wherein, mounting hole 101 is provided with the first groove for accommodating the first radial part 1021
Hole 1011, accommodate the second slotted eye 1012 of the second radial part 1022.The output shaft of force piece 20 coordinates with the gap of mounting hole 101,
And prevent sun gear 10 from moving axially by the magnetic force of magnet piece 102.
In other embodiment, as shown in figure 12, eccentric shaft 171 is fixed with the side of power output shaft 17.Power output
Axle 17 and the eccentric setting of eccentric shaft 171, so that the eccentric output of clutch end.
In other embodiment, as shown in figure 13, the second external toothing 14 is provided with several and is used to install power output shaft 17
Fixing hole 172, and the pivot eccentric setting of the external toothing 14 of fixing hole 172 and second.Wherein, the rotation of fixing hole 172
Match somebody with somebody repeated hole 173 provided with balancing weight in symmetrical position.Specifically, when decelerator exports eccentric dynamic, revolved with power output shaft 17
Turn symmetrical position is provided with balancing weight with repeated hole 173, so that output power keeps balance, reduces and is shaken caused by bias
It is dynamic.
In summary, a kind of planet gear reducing mechanism of the utility model and its decelerator, will by planet gear reducing mechanism
The rotary motion of force piece, which is slowed down, to be exported.First planetary gear outer end of planet gear reducing mechanism is provided with the second coaxial planetary gear,
First planetary gear and the second planetary gear drive the second external toothing rotary motion, the second external toothing around the first external toothing revolution motion
Rotary motion be slow down after output power.The utility model gearratio is big, compact-sized, small volume, is easy to assemble, essence
Close property is high.
It is above-mentioned that technology contents of the present utility model are only further illustrated with embodiment, in order to reader is easier to understand,
But embodiment of the present utility model is not represented is only limitted to this, any technology extension or recreation done according to the utility model,
By protection of the present utility model.The scope of protection of the utility model is defined by claims.
Claims (9)
- A kind of 1. planet gear reducing mechanism, it is characterised in that including sun gear, several first planets engaged with sun gear Wheel, and the first external toothing engaged with the first planetary gear；First planetary gear is distal to sun gear one end and is provided with the second planetary gear, And first planetary gear coaxially fixed with the second planetary gear；Second planetary gear engages with the second external toothing being provided with.
- 2. a kind of planet gear reducing mechanism according to claim 1, it is characterised in that the first described planetary gear and second Planetary gear is coaxially fixed, to form planetary gear set；The planetary gear set rotation is connected in the fixed mount being provided with；The sun gear is defeated Enter power, drive the first planetary gear rotation and revolved round the sun around the first external toothing, and it is defeated by second the second external toothing of planet wheel drive Go out power.
- 3. a kind of planet gear reducing mechanism according to claim 2, it is characterised in that described fixed mount includes and first First fixed plate of planetary gear free end rotatable connection, and the second fixed plate coupled with the rotation of the second planetary gear free end；Institute State the first fixed plate and be provided with several first contiguous blocks towards the same side；Second fixed plate is provided with towards the same side and is connected with first Equal numbers of second contiguous block of block；First contiguous block is fixed in opposite directions with the second contiguous block, so that the first fixed plate and the Two fixed plates surround accommodating chamber；The planetary gear set is in accommodating chamber；Described first solid plate is provided with the through hole through sun gear.
- A kind of 4. planet gear reducing mechanism according to claim 1, it is characterised in that the number of teeth of the first described planetary gear More than one times of the number of teeth of at least the second planetary gear.
- A kind of 5. planet gear reducing mechanism according to claim 1, it is characterised in that the first described planetary gear ring cloth Put；The sun gear is located at the first planetary gear center of ring and is engaged with the first planetary gear.
- 6. a kind of planet gear reducing mechanism according to claim 1, it is characterised in that the second described external toothing is internal tooth Wheel；The second external toothing outer end is provided with power output shaft.
- 7. a kind of decelerator with planetary mechanism, it is characterised in that including the planet-gear speed reducer described in claim 1 to 6 Structure, the force piece with planet gear reducing mechanism driving coupling；The force piece is bordering on clutch end and is provided with fixed seat；The row The first external toothing and the fixed seat of star wheel reducer structure are fixedly connected；Socialized outside second external toothing of the planet gear reducing mechanism Turn to be connected in provided with support base.
- 8. a kind of decelerator with planetary mechanism according to claim 7, it is characterised in that described force piece is electricity Machine；The sun gear provided with connecting shaft with the pto of motor by coupling.
- A kind of 9. decelerator with planetary mechanism according to claim 7, it is characterised in that described support base one end It is fixedly connected with fixed seat；The fixed seat is provided with several buckles projection, and support base is provided with and the raised card coupled of buckle Groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720815051.9U CN206889591U (en) | 2017-07-06 | 2017-07-06 | A kind of planet gear reducing mechanism and its decelerator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720815051.9U CN206889591U (en) | 2017-07-06 | 2017-07-06 | A kind of planet gear reducing mechanism and its decelerator |
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| CN206889591U true CN206889591U (en) | 2018-01-16 |
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| CN201720815051.9U Active CN206889591U (en) | 2017-07-06 | 2017-07-06 | A kind of planet gear reducing mechanism and its decelerator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191549A (en) * | 2017-07-06 | 2017-09-22 | 深圳市华宏昊科技有限公司 | A kind of planet gear reducing mechanism and its decelerator |
| CN108454732A (en) * | 2018-03-23 | 2018-08-28 | 江苏理工学院 | A kind of junked-auto green stereo rotary disassembling apparatus |
| CN108528186A (en) * | 2018-02-23 | 2018-09-14 | 蔚来汽车有限公司 | Electric vehicle and its bi-motor planetary gear power drive system |
| CN109139813A (en) * | 2018-10-23 | 2019-01-04 | 浙江贝托传动科技有限公司 | A kind of planet-gear speed reducer and its assembly method |
-
2017
- 2017-07-06 CN CN201720815051.9U patent/CN206889591U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191549A (en) * | 2017-07-06 | 2017-09-22 | 深圳市华宏昊科技有限公司 | A kind of planet gear reducing mechanism and its decelerator |
| CN108528186A (en) * | 2018-02-23 | 2018-09-14 | 蔚来汽车有限公司 | Electric vehicle and its bi-motor planetary gear power drive system |
| WO2019161738A1 (en) * | 2018-02-23 | 2019-08-29 | 蔚来汽车有限公司 | Electric vehicle and dual-motor planet gear power transmission system thereof |
| CN108454732A (en) * | 2018-03-23 | 2018-08-28 | 江苏理工学院 | A kind of junked-auto green stereo rotary disassembling apparatus |
| CN109139813A (en) * | 2018-10-23 | 2019-01-04 | 浙江贝托传动科技有限公司 | A kind of planet-gear speed reducer and its assembly method |
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