CN107939912A - Optimal design of coaxial planetary reducer with dual power output - Google Patents
Optimal design of coaxial planetary reducer with dual power output Download PDFInfo
- Publication number
- CN107939912A CN107939912A CN201711386311.6A CN201711386311A CN107939912A CN 107939912 A CN107939912 A CN 107939912A CN 201711386311 A CN201711386311 A CN 201711386311A CN 107939912 A CN107939912 A CN 107939912A
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- China
- Prior art keywords
- motor
- gear
- end cover
- planetary gear
- middle shell
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The present invention provides a kind of optimal design of coaxial planetary reducer with dual power output, including housing, motor, planetary gear speed reducing mechanism and output unit, the motor, planetary gear speed reducing mechanism, output unit is separately positioned on the housing, the motor is connected by the planetary gear speed reducing mechanism with the output unit, wherein, the planetary gear speed reducing mechanism includes central gear, planetary gear, planet carrier, first order internal gear and second level internal gear, the central gear is connected with the motor, the planetary gear is arranged on the planet carrier, the central gear is engaged with the planetary gear, the planetary gear respectively with the first order internal gear, second level internal gear engagement.The beneficial effects of the invention are as follows:It can realize coaxial dual output, compact-sized, small, the gearratio under same volume is relatively large；Friction is few, transmission efficiency；Number of parts is few, and installs the centralized positioning that positioning is concentrated mainly on same axis, easy for installation.
Description
Technical field
The present invention relates to retarder, more particularly to a kind of optimal design of coaxial planetary reducer with dual power output.
Background technology
The advantages that involute planet gear drive mechanism is big with gearratio, small, transmission efficiency, in Minitype transmission
Field has a wide range of applications.
Planetary gear transmission mechanism has the diversified forms such as NGW, NGWN, NW, NN types, but the Planetary Gear Transmission of the prior art
Structure is mainly used for coaxially inputting in the retarder coaxially exported.
In existing coaxial double-output transmission device, the coaxial both ends output drivers of patent CN201710209686-, use
Be it is single input bilateral output structure, patent CN200910264409- multi-diffluence coaxial double output gear cases be at present often
Dead axle parallel-axes gears drive mechanism, is realized same defeated by the shunting of multistage parallel-axes gears transmission and interflow effect
Go out two different output speeds and steering on axis.A kind of coaxial single input homonymy dual outputs of patent CN201410342765-
Cycloidal reducer, discloses a kind of retarder of coaxial dual output, is to be based on Cycloidal pin-wheel drive structure, with involute planetary tooth
Wheel construction is compared, and has larger gearratio and registration, is driven more steady, low noise, but this Structure adaptation is in heavy load
With the transmission compared with thump, since the big transmission efficiency of pressure angle is relatively low, and occupancy volume is larger, in Miniature precision transmission
Using being above subject to certain restrictions.A kind of coaxial Dual-output reducer of single inputs of patent CN201310363096-, discloses one kind
The reducer structure of coaxial dual output, is the gear differential mechanism principle based on Bevel Gear Transmission, its is complicated, component assembly position
It is high to put requirement, and the difficulty of processing of bevel gear and cost are also higher, while spatial volume is also larger.
The content of the invention
In order to solve the problems of the prior art, the present invention provides a kind of optimal design of coaxial planetary reducer with dual power output.
The present invention provides a kind of optimal design of coaxial planetary reducer with dual power output, including housing, motor, planetary gear speed reducing mechanism and
Output unit, the motor, planetary gear speed reducing mechanism, output unit are separately positioned on the housing, and the motor passes through described
Planetary gear speed reducing mechanism is connected with the output unit, wherein, the planetary gear speed reducing mechanism includes central gear, planetary gear, OK
Carrier, first order internal gear and second level internal gear, the central gear are connected with the motor, and the planetary gear is arranged on
On the planet carrier, the central gear is engaged with the planetary gear, the planetary gear respectively with the first order internal tooth
Wheel, the engagement of second level internal gear, the output unit include efferent duct and output shaft, the first order internal gear and the housing
It is fixedly connected, the second level internal gear is fixedly connected with the efferent duct, and the planet carrier is fixedly connected with the output shaft.
As a further improvement on the present invention, the motor is connected with motor drive shaft, the motor drive shaft, efferent duct, output shaft
Axis coincide, the motor drive shaft is connected with the central gear.
As a further improvement on the present invention, the housing includes upper end cover, middle shell, bottom end cover and motor protective housing,
The bottom end cover is connected with the motor protective housing, and the upper end of the middle shell is connected with the upper end cover, under the middle shell
End is connected with the bottom end cover.
As a further improvement on the present invention, motor installation cavity is enclosed between the bottom end cover, motor protective housing
Body, the motor are fixed within the motor installation cavity, and the bottom end cover is equipped with motor drive shaft and avoids through hole, the motor
Axis avoids through hole through the motor drive shaft and is connected with the central gear.
As a further improvement on the present invention, the motor is connected by screw with the bottom end cover, and the bottom end cover leads to
Cross screw to be connected with the motor protective housing, sealing ring, the middle shell are folded between the bottom end cover, motor protective housing
Be connected with the bottom end cover by radial screw, be folded with sealing ring between the middle shell, bottom end cover, the middle shell with it is described on
End cap is connected by axial bolt, and sealing ring is folded between the middle shell, upper end cover.
As a further improvement on the present invention, the upper end cover, middle shell, bottom end cover are enclosed planetary gear speed reducing mechanism installation
Cavity, the planetary gear speed reducing mechanism are arranged within the planetary gear speed reducing mechanism installation cavity, are set on the medial surface of the middle shell
Have by the middle shell be divided into upper part, lower part step, the lower part of the first order internal gear and the middle shell, which is fixed, to be connected
Connect, the upper surface of the first order internal gear is alignd setting with the step, and the second level internal gear is located at the middle shell
In top point is.
As a further improvement on the present invention, the output shaft is equipped with output shaft installation step, the output shaft installation
Step is connected with the planet carrier, and the output shaft is equipped with output shaft bearing, the efferent duct at output shaft installation step
Be equipped with efferent duct installation step and with the corresponding efferent duct inner bore of step of the efferent duct installation step, the output shaft axis
Hold and be arranged within the efferent duct inner bore of step.
As a further improvement on the present invention, the efferent duct is equipped with output tubular shaft at efferent duct installation step,
The output tubular shaft is fixed on the upper end cover.
As a further improvement on the present invention, the end of the efferent duct and the end of the second level internal gear pass through footpath
Connected to pin.
As a further improvement on the present invention, the number of teeth of the first order internal gear and the second level internal gear not phase
Together.
The beneficial effects of the invention are as follows：Through the above scheme, it is possible to achieve coaxial dual output, compact-sized, small, phase
Gearratio under same volume is relatively large；Friction is few, transmission efficiency；Number of parts is few, and installs positioning and be concentrated mainly on together
The centralized positioning of one axis, it is easy for installation.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of optimal design of coaxial planetary reducer with dual power output of the present invention.
Fig. 2 is a kind of front view of optimal design of coaxial planetary reducer with dual power output of the present invention.
Fig. 3 is the profile F-F of Fig. 2.
Embodiment
The invention will be further described for explanation and embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of optimal design of coaxial planetary reducer with dual power output, including housing, motor 2, planetary reducer
Structure and output unit, the motor 2, planetary gear speed reducing mechanism, output unit are separately positioned on the housing, and the motor 2 is logical
The planetary gear speed reducing mechanism is crossed to be connected with the output unit, wherein, the planetary gear speed reducing mechanism includes central gear 31, planet
Gear 32, planet carrier 33, first order internal gear 34 and second level internal gear 35, the central gear 31 are connected with the motor 2,
The planetary gear 32 is arranged on the planet carrier 33, and the central gear 31 is engaged with the planetary gear 32, the row
Star gear 32 is engaged with the first order internal gear 34, second level internal gear 35 respectively, and the output unit includes efferent duct 42
With output shaft 41, the first order internal gear 34 is fixedly connected with the housing, the second level internal gear 35 and the output
Pipe 42 is fixedly connected, and the planet carrier 33 is fixedly connected with the output shaft 41, the central gear 31, planetary gear 32,
Level-one internal gear 34 and second level internal gear 35 are involute gear.
As shown in Figure 1 to Figure 3, the motor 2 is connected with motor drive shaft 21, the motor drive shaft 21, efferent duct 42, output shaft 41
Axis coincide, the motor drive shaft 21 is connected with the central gear 31, and planetary gear 32 has multiple and is distributed in sun tooth
Around wheel 31, central gear 31 is sleeved on motor drive shaft 21 and is engaged with being distributed in surrounding multiple planetary gears 32, OK
Star gear 32 is set in planetary gear shaft, and planetary gear shaft is installed on planet carrier 33, and planet carrier 33 is by upper and lower two parts group
Into.
As shown in Figure 1 to Figure 3, the housing includes upper end cover 14, middle shell 13, bottom end cover 12 and motor protective housing 11,
The bottom end cover 12 is connected with the motor protective housing 11, and the upper end of the middle shell 13 is connected with the upper end cover 14, described
The lower end of middle shell 13 is connected with the bottom end cover 12.
As shown in Figure 1 to Figure 3, motor installation cavity, institute are enclosed between the bottom end cover 12, motor protective housing 11
State motor 2 to be fixed within the motor installation cavity, the bottom end cover 12 is equipped with motor drive shaft and avoids through hole, the motor drive shaft
21 avoid through hole through the motor drive shaft is connected with the central gear 31.
As shown in Figure 1 to Figure 3, the motor 2 is connected by screw with the bottom end cover 12, and the bottom end cover 12 passes through spiral shell
Nail is connected with the motor protective housing 11, sealing ring is folded between the bottom end cover 12, motor protective housing 11, in described
Shell 13 is connected with the bottom end cover 12 by radial screw, sealing ring is folded between the middle shell 13, bottom end cover 14, in described
Shell 13 is connected with the upper end cover 14 by axial bolt, and sealing ring is folded between the middle shell 13, upper end cover 14.
As shown in Figure 1 to Figure 3, the upper end cover 14, middle shell 13, bottom end cover 12 are enclosed planetary gear speed reducing mechanism installation cavity
Body, the planetary gear speed reducing mechanism are arranged within the planetary gear speed reducing mechanism installation cavity, are set on the medial surface of the middle shell 13
Have by the middle shell 13 be divided into upper part, lower part step, the lower part of the first order internal gear 33 and the middle shell 13
It is fixedly connected, the upper surface of the first order internal gear 33 is alignd setting with the step, and the second level internal gear 34 is located at
In the top of the middle shell 13 point is.
As shown in Figure 1 to Figure 3, the output shaft 41 is equipped with output shaft installation step, the output shaft installation step with
The planet carrier 33 connects, and the output shaft 41 is equipped with output shaft bearing 51, the efferent duct at output shaft installation step
42 be equipped with efferent duct installation step and with the corresponding efferent duct inner bore of step of the efferent duct installation step, the output shaft
Bearing 51 is arranged within the efferent duct inner bore of step.
As shown in Figure 1 to Figure 3, the efferent duct 42 is equipped with output tubular shaft 52 at efferent duct installation step, described
Output tubular shaft 52 is fixed on the upper end cover 14.
As shown in Figure 1 to Figure 3, the end of the efferent duct 42 and the end of the second level internal gear 35 pass through radial peg
Nail connection.
As shown in Figure 1 to Figure 3, the number of teeth of the first order internal gear 34 and the second level internal gear 35 differs.
A kind of operation principle of optimal design of coaxial planetary reducer with dual power output provided by the invention is：
1st, rotation is delivered to central gear 31 by motor 2 by motor drive shaft 21, and central gear 31 is engaged with planetary gear 32, due to
First order internal gear 33 is fixed, and 21 rotation of planetary gear simultaneously drives planet carrier 33 to revolve round the sun around central gear 31, and planet carrier 33 rotates
Drive output shaft 41 thereon to rotate, realize the output of output shaft 41；
2nd, internal gear 35 number of teeth in the second level is different from 34 number of teeth of first order internal gear, thus planetary gear 32 at the same time with first order internal tooth
When wheel 34, second level internal gear 35 engage, first order internal gear 34 is fixed, but second level internal gear 35 rotates, second level internal tooth
The rotation of wheel 35 drives efferent duct 42 thereon to rotate, and realizes the output of efferent duct 42, due to 35 number of teeth of second level internal gear with
34 number of teeth of first order internal gear is different, and efferent duct 42 is different from the rotating speed of output shaft 41, it can be achieved that the input of 21 side of motor drive shaft, defeated
Outlet pipe 42 exports at the same time with output shaft 41, and rotating speed differs.
A kind of optimal design of coaxial planetary reducer with dual power output provided by the invention, input shaft are located at same axis with output shaft
On, being inputted from retarder one end, dual output is realized from the retarder device other end, the rotating speed of two output is different, and with fixation
Speed proportional, compact-sized, small, the gearratio under same volume is relatively large；Using Involutes Gears Transmission, relatively
Friction is few, transmission efficiency；Number of parts is few, and installs the centralized positioning that positioning is concentrated mainly on same axis, easy for installation.
Above content is that a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
- A kind of 1. optimal design of coaxial planetary reducer with dual power output, it is characterised in that：Including housing, motor, planetary gear speed reducing mechanism and defeated Go out unit, the motor, planetary gear speed reducing mechanism, output unit are separately positioned on the housing, and the motor passes through the row Star reducing gear is connected with the output unit, wherein, the planetary gear speed reducing mechanism includes central gear, planetary gear, planet Frame, first order internal gear and second level internal gear, the central gear are connected with the motor, and the planetary gear is arranged on institute State on planet carrier, the central gear is engaged with the planetary gear, the planetary gear respectively with the first order internal gear, Second level internal gear engagement, the output unit include efferent duct and output shaft, and the first order internal gear is consolidated with the housing Fixed connection, the second level internal gear are fixedly connected with the efferent duct, and the planet carrier is fixedly connected with the output shaft.
- 2. optimal design of coaxial planetary reducer with dual power output according to claim 1, it is characterised in that：The motor is connected with horse Up to axis, the motor drive shaft, efferent duct, the axis of output shaft coincide, and the motor drive shaft is connected with the central gear.
- 3. optimal design of coaxial planetary reducer with dual power output according to claim 2, it is characterised in that：The housing includes upper end Lid, middle shell, bottom end cover and motor protective housing, the bottom end cover are connected with the motor protective housing, the upper end of the middle shell It is connected with the upper end cover, the lower end of the middle shell is connected with the bottom end cover.
- 4. optimal design of coaxial planetary reducer with dual power output according to claim 3, it is characterised in that：The bottom end cover, motor Motor installation cavity is enclosed between protective housing, the motor is fixed within the motor installation cavity, the lower end Cover and avoid through hole equipped with motor drive shaft, the motor drive shaft avoids through hole through the motor drive shaft and is connected with the central gear.
- 5. optimal design of coaxial planetary reducer with dual power output according to claim 4, it is characterised in that：The motor passes through screw It is connected with the bottom end cover, the bottom end cover is connected by screw with the motor protective housing, the bottom end cover, motor protection Sealing ring is folded between housing, the middle shell is connected with the bottom end cover by radial screw, between the middle shell, bottom end cover Sealing ring is folded with, the middle shell is connected with the upper end cover by axial bolt, is folded between the middle shell, upper end cover close Seal.
- 6. optimal design of coaxial planetary reducer with dual power output according to claim 3, it is characterised in that：The upper end cover, middle shell, Bottom end cover is enclosed planetary gear speed reducing mechanism installation cavity, and the planetary gear speed reducing mechanism is arranged on the planetary gear speed reducing mechanism installation Within cavity, the medial surface of the middle shell be equipped with by the middle shell be divided into upper part, lower part step, in the first order Gear is fixedly connected with the lower part of the middle shell, and the upper surface of the first order internal gear is alignd setting with the step, institute State second level internal gear be located at the middle shell top it is point in.
- 7. optimal design of coaxial planetary reducer with dual power output according to claim 3, it is characterised in that：The output shaft is equipped with Output shaft installation step, the output shaft installation step are connected with the planet carrier, and the output shaft is close to output shaft erecting bed It is equipped with output shaft bearing at rank, the efferent duct is equipped with efferent duct installation step and corresponding with the efferent duct installation step Efferent duct inner bore of step, the output shaft bearing is arranged within the efferent duct inner bore of step.
- 8. optimal design of coaxial planetary reducer with dual power output according to claim 7, it is characterised in that：The efferent duct is close to defeated Output tubular shaft is equipped with outlet pipe installation step, the output tubular shaft is fixed on the upper end cover.
- 9. optimal design of coaxial planetary reducer with dual power output according to claim 1, it is characterised in that：The end of the efferent duct It is connected with the end of the second level internal gear by radial direction pin.
- 10. optimal design of coaxial planetary reducer with dual power output according to claim 1, it is characterised in that：The first order internal tooth The number of teeth of wheel and the second level internal gear differs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711386311.6A CN107939912A (en) | 2017-12-20 | 2017-12-20 | Optimal design of coaxial planetary reducer with dual power output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711386311.6A CN107939912A (en) | 2017-12-20 | 2017-12-20 | Optimal design of coaxial planetary reducer with dual power output |
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| Publication Number | Publication Date |
|---|---|
| CN107939912A true CN107939912A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711386311.6A Pending CN107939912A (en) | 2017-12-20 | 2017-12-20 | Optimal design of coaxial planetary reducer with dual power output |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878816A (en) * | 2019-12-11 | 2020-03-13 | 西安航天精密机电研究所 | Single/double-input and double-output planetary gear reducer |
| CN113007304A (en) * | 2021-04-16 | 2021-06-22 | 天府重工有限公司 | Single-input double-output driving device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586402A (en) * | 1982-10-08 | 1986-05-06 | Battenfeld Extrusionstechnik Gmbh | Drive for two-worm extruder |
| US5679089A (en) * | 1995-09-14 | 1997-10-21 | The United States Of America As Represented By The Secretary Of The Navy | Bicoupled contrarotating epicyclic gears |
| JPH10257715A (en) * | 1997-03-13 | 1998-09-25 | Tamagawa Seiki Co Ltd | Method of driving ball screw spline shaft |
| CN2370219Y (en) * | 1999-05-07 | 2000-03-22 | 曹小华 | Reducing gear having two rotation speed output |
| KR20020080209A (en) * | 2001-04-12 | 2002-10-23 | 구재홍 | A booster combined with decelerator |
| CN203585222U (en) * | 2013-10-10 | 2014-05-07 | 西安创联超声技术有限责任公司 | Coaxial reverse rotation planetary speed reducer |
| CN207687267U (en) * | 2017-12-20 | 2018-08-03 | 深圳市兆威机电股份有限公司 | Optimal design of coaxial planetary reducer with dual power output |
-
2017
- 2017-12-20 CN CN201711386311.6A patent/CN107939912A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586402A (en) * | 1982-10-08 | 1986-05-06 | Battenfeld Extrusionstechnik Gmbh | Drive for two-worm extruder |
| US5679089A (en) * | 1995-09-14 | 1997-10-21 | The United States Of America As Represented By The Secretary Of The Navy | Bicoupled contrarotating epicyclic gears |
| JPH10257715A (en) * | 1997-03-13 | 1998-09-25 | Tamagawa Seiki Co Ltd | Method of driving ball screw spline shaft |
| CN2370219Y (en) * | 1999-05-07 | 2000-03-22 | 曹小华 | Reducing gear having two rotation speed output |
| KR20020080209A (en) * | 2001-04-12 | 2002-10-23 | 구재홍 | A booster combined with decelerator |
| CN203585222U (en) * | 2013-10-10 | 2014-05-07 | 西安创联超声技术有限责任公司 | Coaxial reverse rotation planetary speed reducer |
| CN207687267U (en) * | 2017-12-20 | 2018-08-03 | 深圳市兆威机电股份有限公司 | Optimal design of coaxial planetary reducer with dual power output |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878816A (en) * | 2019-12-11 | 2020-03-13 | 西安航天精密机电研究所 | Single/double-input and double-output planetary gear reducer |
| CN113007304A (en) * | 2021-04-16 | 2021-06-22 | 天府重工有限公司 | Single-input double-output driving device |
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