CN204403285U - A kind of planetary gear speed reducing mechanism and speed reducer - Google Patents

A kind of planetary gear speed reducing mechanism and speed reducer Download PDF

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Publication number
CN204403285U
CN204403285U CN201520013495.1U CN201520013495U CN204403285U CN 204403285 U CN204403285 U CN 204403285U CN 201520013495 U CN201520013495 U CN 201520013495U CN 204403285 U CN204403285 U CN 204403285U
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China
Prior art keywords
gear
internal gear
planetary
power
reducing mechanism
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Expired - Fee Related
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CN201520013495.1U
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Chinese (zh)
Inventor
胡晓东
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Zhuhai Huayisheng Precision Parts Co., Ltd.
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胡晓东
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Abstract

A kind of planetary gear speed reducing mechanism and speed reducer, comprise sun gear, enter power internal gear, at least three planetary pinions, planet stent and planet axis, described sun gear inputs as power, the described power of entering internal gear fixed installation, described planetary pinion is connected with described planet axis by described planet stent, move between described sun gear and the described power of entering internal gear, it is characterized in that, also comprise an internal gear of exerting oneself, described internal gear of exerting oneself engages with described planetary pinion, described in internal gear of exerting oneself output power.The utility model breach internal gear in prior art be all fixed installation, by the technological scheme of sun gear outputting power, planetary pinion is engaged from two different, that modulus is equal internal gears of the number of teeth simultaneously simultaneously, wherein enter power internal gear to fix, internal gear of exerting oneself rotates and outputs power, and achieves the technique effect that single hop reduction speed ratio is large, output torque is large, volume is little, precision is high.

Description

A kind of planetary gear speed reducing mechanism and speed reducer
Technical field
The utility model relates to a kind of reduction gears mechanism, particularly relates to a kind of planetary gear reducing mechanism, and applies the speed reducer of this planetary gear reducing mechanism.
Background technique
Traditional planet-gear speed reducer single hop reduction speed ratio is little, need multistage to slow down could realize big retarding ratio, and so then can increase volume, reduce precision and increase cost, special in limited space, existing planetary gear speed reducing mechanism just becomes inapplicable.
Fig. 1 is the planetary speed reducer that traditional internal gear is fixed, and motor gear 14 drives by motor drive shaft 14, and internal gear 4 is fixed on motor 1, and coaxial with motor gear 2, and section planetary pinion 5 at the beginning of at least three installs running between motor gear 14 and internal gear 4.First section planetary pinion 5 installs sun gear driving plate 6, and this driving plate can rotate with motor gear 14, and sun gear driving plate 6 is also integrally provided with sun gear.So, motor gear 14 drives just section planetary pinion 5 to revolve round the sun around it, and this revolution is converted into the rotation of sun gear by sun gear driving plate 6, is exported by sun gear, so just achieves primary speed-down.Reduction speed ratio formula is: i=Z 1/ Zt+1, Z 1be the number of teeth of internal gear 4, Zt is the number of teeth of motor gear 14, if get Z 1=72, Zt=24, then reduction speed ratio is 4/1.Said structure is repeated superposition, just can realize multistage and slow down.
This traditional planetary gear speed reducing mechanism as larger reduction speed ratio will be realized, such as 64, then to use three sections of reduction speed ratio be 4/1 planetary reduction gear just can realize, as shown in Figure 1, be three grades slow down planetary gear speed reducing mechanisms.Now, the volume of reducing gear increases greatly, and can bring back clearance precise decreasing because of hop count increase, increase cost, and applicable situation is restricted.In addition, the output torque size of planetary gear speed reducing mechanism depends on the sun gear intensity of the section of exerting oneself substantially, and when equal volume, material and modulus, the effective length of sun gear is longer, and its intensity is larger.Traditional reducing gear because of hop count many, when not increasing volume, sun gear effective length can only shorten, and thus output torque is also just relatively little.
Model utility content
In order to solve the problems of the technologies described above, the utility model provides that a kind of single hop reduction speed ratio can reach 100/1, volume is little, cost is low, and precision is higher simultaneously, output torque large, the planetary gear speed reducing mechanism that also can use at restricted clearance and the speed reducer applying this planetary gear speed reducing mechanism.
The technological scheme that the utility model adopts is: a kind of planetary gear speed reducing mechanism, comprise sun gear 6, enter power internal gear 4, at least three planetary pinions 9, planet stent 7 and planet axis 8, described sun gear 6 inputs as power, the described power of entering internal gear 4 fixedly mounts, described planetary pinion 9 is connected with described planet axis 8 by described planet stent 7, move between described sun gear 6 and the described power of entering internal gear 4, it is characterized in that, also comprise an internal gear 10 of exerting oneself, described internal gear 10 of exerting oneself engages with described planetary pinion 9, described internal gear 10 of exerting oneself outputs power.
Relative to prior art, the utility model by by planetary pinion 9 simultaneously with enter power internal gear 4, internal gear 10 of exerting oneself engages, finally by the Power output of internal gear 10 of exerting oneself, realizing single hop reduction speed ratio is i=Z 2/ (Z 2-Z 1), Z 1for entering the number of teeth of power internal gear 4, Z 2for the number of teeth of internal gear 10 of exerting oneself, if get Z 1=72, Z 2=75, then single hop reduction speed ratio is 25/1.And in prior art, mainly with sun gear as Power output, the single hop reduction speed ratio reached is i=Z 1/ Zt+1, Z 1be the number of teeth of internal gear 4, Zt is the number of teeth of motor gear 14, if get Z 1=72, Zt=24, then reduction speed ratio is 4/1.Single hop reduction speed ratio of the present utility model is comparatively large, and the volume of mechanism is little, cost is low, and precision is higher.Simultaneously because organization volume is little, when compared with when employing prior art, if volume is equal, then the effective length of sun gear can be longer, and its intensity is improved, and therefore exportable moment of torsion is also larger.
Further, also comprise just section planetary reduction unit, described just section planetary reduction unit comprises section planetary pinion 5 and a sun gear driving plate 61 at the beginning of motor gear 2, at least three, described just section planetary pinion 5 connected by described sun gear driving plate 61, move between described motor gear 2 and the described power of entering internal gear 4, described sun gear driving plate 61 is fixedly connected with described sun gear 6 or integrally manufactured.
This first section planetary reduction unit is combined with aforementioned schemes, and can reach reduction speed ratio is i=(Z 1/ Zt+1) * (Z 2/ (Z 2-Z 1)), if get Z equally 1=72, Z 2=75, Zt=24, then reduction speed ratio is 100/1, can just realize comparatively big retarding ratio in smaller size smaller.
Further, also include mechanical axis 14, described inputting shaft 14 drives described motor gear 2 to move.
Further, also comprise motor 1, described in enter power internal gear 4 and be fixedly connected with motor 1 by screw 3.
Further, also comprise be arranged on described in enter power internal gear 4 and described gear cap 11 of exerting oneself outside internal gear 10.
Further, the force-output shaft 13 be fixedly connected with described internal gear 10 of exerting oneself also is comprised.
Further, the meson 12 be arranged on described force-output shaft 13 is also comprised.
Meanwhile, the utility model also provides a kind of speed reducer applying planetary gear speed reducing mechanism described in above-mentioned any one.
In order to understand better and implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is planetary gear speed reducing mechanism of the prior art.
Fig. 2 is explosive view of the present utility model.
Fig. 3 is sectional drawing of the present utility model.
Embodiment
Please refer to Fig. 2 and Fig. 3, Fig. 2 is explosive view of the present utility model, and Fig. 3 is sectional drawing of the present utility model.The utility model comprises motor 1, inputting shaft 14, motor gear 2, screw 3, enters section planetary pinion 5 at the beginning of power internal gear 4, three, sun gear driving plate 61, sun gear 6, planet stent 7, planet axis 8, three planetary pinions 9, internal gear 10 of exerting oneself, gear cap 11, E type meson 12, force-output shaft 13.
As figure, enter power internal gear 4 to be fixedly connected with motor 1 by screw 3, and coaxially install with motor gear 2, section planetary pinion 5 at the beginning of inputting shaft 14 drive motor gear 2, three engages with described motor gear 2 and the described power of entering internal gear 4 and moves between simultaneously.This first section planetary pinion 5 can rotate around motor gear 2, namely revolves round the sun, and the planetary central axis portion of the first section that also can be formed on sun gear driving plate 61 rotates, i.e. rotation.The attachment portion 612 that sun gear driving plate 61 comprises the first planetary central axis portion of section 611 and coupled together by described central shaft, and sun gear driving plate 61 can with described motor gear 2 coaxial rotating.Sun gear driving plate 61 is fixedly connected with sun gear 6, and both also can be integrally manufactured.First section planetary pinion 5 drives central axis portion 611 to rotate around the revolution of motor gear 2, and then sun gear driving plate 61 and sun gear 6 rotate around its central axis, realizes first time to slow down.
The internal gear 10 of exerting oneself coaxially is installed with sun gear 6, and three planetary pinions 9 are arranged on planet stent 7 by planet axis 8, and planet stent 7 and sun gear 6 are coaxially installed, and can with sun gear 6 coaxial rotating.Planetary pinion 9 engages with sun gear 6 and the hard-wired power of entering internal gear 4 simultaneously and moves between, both rotates around sun gear 6, also rotates centered by planet axis 8.The rotating drive planetary pinion 9 of sun gear 6 revolves round the sun, and realizes second time and slows down.
Planetary pinion 9 also engages with internal gear 10 of exerting oneself, and planetary pinion 9 drives internal gear 10 of exerting oneself to rotate around the revolution of sun gear 6, realizes third time deceleration, then is outputed power by the force-output shaft 13 be fixedly connected with internal gear 10 of exerting oneself.
Main feature of the present utility model is, planetary pinion 9 simultaneously with enter power internal gear 4, internal gear 10 of exerting oneself engages, wherein, enter that power internal gear 4 is different with the number of teeth of internal gear 10 of exerting oneself, modulus is equal, enter power internal gear 4 for fixed installation, and internal gear of exerting oneself can be driven by the revolution of planetary pinion 9 and rotate, finally by internal gear 10 outputting power of exerting oneself.Internal gear of the prior art is all fixed installation, and then by sun gear outputting power, the utility model breaches the scheme of prior art, using the internal gear of motion as clutch end, achieves larger reduction speed ratio and output torque.
The reduction speed ratio of this planetary gear speed reducing mechanism is i=(Z 1/ Zt+1) * (Z 2/ (Z 2-Z 1)), Z 1for entering the number of teeth of power internal gear 4, Z 2for the number of teeth of internal gear 10 of exerting oneself, Zt is the number of teeth of motor gear 2, if get Z 1=72, Z 2=75, Zt=24, then reduction speed ratio is 100, and single hop reduction speed ratio is comparatively large, and volume does not increase simultaneously, and applicable situation is wider, and it also avoid the back clearance precise decreasing brought because of the hop count increase of multistage deceleration, thus precision is higher.Simultaneously because organization volume is little, when compared with when employing prior art, if volume is equal, then the effective length of sun gear can be longer, and its intensity is improved, and therefore exportable moment of torsion is also larger.
The gear cap 11 be arranged on outside said structure entirety plays a part to install and protection, and the E type meson 12 installed between gear cap 11 and force-output shaft 13 can firm output axle 13 better.
The utility model is not limited to above-mentioned mode of execution, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.

Claims (8)

1. a planetary gear speed reducing mechanism, comprise sun gear, enter power internal gear, at least three planetary pinions, planet stent and planet axis, described sun gear inputs as power, the described power of entering internal gear fixed installation, described planetary pinion is connected with described planet axis by described planet stent, move between described sun gear and the described power of entering internal gear, it is characterized in that, also comprise an internal gear of exerting oneself, described internal gear of exerting oneself engages with described planetary pinion, described in internal gear of exerting oneself output power.
2. planetary gear speed reducing mechanism according to claim 1, it is characterized in that, also comprise just section planetary reduction unit, described just section planetary reduction unit comprises motor gear, section planetary pinion and a sun gear driving plate at the beginning of at least three, described just section planetary pinion connected by described sun gear driving plate, move between described motor gear and the described power of entering internal gear, described sun gear driving plate is fixedly connected with described sun gear or integrally manufactured.
3. planetary gear speed reducing mechanism according to claim 2, is characterized in that, also includes mechanical axis, and described inputting shaft drives described motor gear to move.
4. planetary gear speed reducing mechanism according to claim 1, is characterized in that, also comprises motor, described in enter power internal gear and be fixedly connected with motor by screw.
5. planetary gear speed reducing mechanism according to claim 1, is characterized in that, also comprises described in being arranged on and enters power internal gear and described gear cap of exerting oneself outside internal gear.
6. planetary gear speed reducing mechanism according to claim 1, is characterized in that, also comprises the force-output shaft be fixedly connected with described internal gear of exerting oneself.
7. planetary gear speed reducing mechanism according to claim 6, is characterized in that, also comprises the meson be arranged on described force-output shaft.
8. a speed reducer, is characterized in that, comprises planetary gear speed reducing mechanism according to any one of claim 1 to 7.
CN201520013495.1U 2015-01-08 2015-01-08 A kind of planetary gear speed reducing mechanism and speed reducer Expired - Fee Related CN204403285U (en)

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CN201520013495.1U CN204403285U (en) 2015-01-08 2015-01-08 A kind of planetary gear speed reducing mechanism and speed reducer

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Application Number Priority Date Filing Date Title
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CN204403285U true CN204403285U (en) 2015-06-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114263A (en) * 2015-09-21 2015-12-02 江苏中蕴风电科技有限公司 Speed-increasing rotor system for biological kinetic energy drag type power generation system
TWI603018B (en) * 2016-12-15 2017-10-21 Safeway Electro-Mechanical Co Ltd Motor reducer module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114263A (en) * 2015-09-21 2015-12-02 江苏中蕴风电科技有限公司 Speed-increasing rotor system for biological kinetic energy drag type power generation system
CN105114263B (en) * 2015-09-21 2018-02-02 江苏中蕴风电科技有限公司 A kind of speedup rotor-support-foundation system for biological kinetic energy pull-alongs electricity generation system
TWI603018B (en) * 2016-12-15 2017-10-21 Safeway Electro-Mechanical Co Ltd Motor reducer module

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C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180214

Address after: 519000, No. 2, No. 2, Gong Yi Street, Xiangzhou District, Xiangzhou District, Guangdong

Patentee after: Zhuhai Huayisheng Precision Parts Co., Ltd.

Address before: 511300 Guangdong Province, Guangzhou city Zengcheng District Stone Town Garden Verde Lake Lai Court 1 Street No. 2

Patentee before: Hu Xiaodong

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150617

Termination date: 20210108