CN203730664U - Planetary reducer - Google Patents
Planetary reducer Download PDFInfo
- Publication number
- CN203730664U CN203730664U CN201320867920.4U CN201320867920U CN203730664U CN 203730664 U CN203730664 U CN 203730664U CN 201320867920 U CN201320867920 U CN 201320867920U CN 203730664 U CN203730664 U CN 203730664U
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- Prior art keywords
- shaft
- planetary reducer
- output shaft
- gear
- planet carrier
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Abstract
The utility model discloses a planetary reducer which comprises a reducer housing, an input shaft, an output shaft, an input gear arranged on the input shaft, a planet carrier end plate installed on the reducer housing in a rotary mode, multiple planet gear shafts fixedly connected with the planet carrier end plate and the output shaft, a planet gear connected to the planet gear shafts in a rotary mode and meshed with the input gear, an inner gear ring meshed with the planet gear and connected in the reducer housing in a rotary mode, multiple idler wheels meshed with the inner gear ring and an output gear of the output shaft, and an idler wheel shaft connected with the idler wheels in a rotary mode and fixed in the reducer housing. According to the planetary reducer, a power dividing transmission method is adopted, power is divided into two paths, one path is transmitted to the output shaft through the input shaft, the planet gear and the planet gear shaft, the other path is transmitted to the output shaft through the input shaft, the planet gear, the inner gear ring and the idler wheels, and in this way, the load of a single part is reduced, and the size of the planetary reducer is reduced under the condition that the power is unchanged.
Description
Technical field
The utility model relates to retarder technical field, particularly a kind of planetary reducer.
Background technique
The principle of planetary reducer is to adopt planetary gears to realize to slow down, and planetary gears generally includes sun gear, planet wheel, planet carrier and gear ring, and planet wheel is supported by planet carrier, revolves round the sun around sun gear.The planetary gears of existing planetary reducer is taking sun gear as driving link, and planet carrier is Passive part, thereby realizes the transmission of power.
But, in the time that the power transmitting is larger, need to increase the size of the each parts of retarder, to improve the intensity of load of retarder, like this, will certainly increase the volume of retarder, cannot be arranged in small-sized equipment, do not meet the development trend of current device miniaturization.
In sum, how, under the condition of Same Efficieney, reduce the volume of planetary reducer, become those skilled in the art's problem demanding prompt solution.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of planetary reducer, under the condition of Same Efficieney, to reduce the volume of planetary reducer.
For achieving the above object, the utility model provides following technological scheme:
A kind of planetary reducer, comprising: reduction-gear housing shell; Input shaft; The output shaft coaxially arranged with described input shaft; Be arranged on the input gear on described input shaft; Be rotatably installed in the planet carrier end plate on described reduction-gear housing shell; Be fixedly connected with multiple planet wheel shafts of described planet carrier end plate and described output shaft; Be rotationally connected with the planet wheel on described planet wheel shaft, described planet wheel engages with described input gear; With the ring gear that described planet wheel engages, described ring gear is rotationally connected with in described reduction-gear housing shell;
Also comprise: the multiple idle pulleys that all engage with the output gear of described ring gear and described output shaft;
Be rotationally connected and be fixed on the idler shaft in described reduction-gear housing shell with described idle pulley.
Preferably, in above-mentioned planetary reducer, also comprise the multiple planet carrier coupling shafts that are fixedly connected with described planet carrier end plate and described output shaft.
Preferably, in above-mentioned planetary reducer, the quantity of described planet carrier coupling shaft is at least three.
Preferably, in above-mentioned planetary reducer, the quantity of described planet wheel is at least three, and the quantity of described idle pulley is at least three.
Preferably, in above-mentioned planetary reducer, described reduction-gear housing shell comprises the first case lid, the second case lid and case shell main body;
Described the first case lid and described the second case lid are arranged on respectively the two ends of described case shell main body;
Described planet carrier end plate is rotationally connected with on described the first case lid by bearing;
Described idler shaft is arranged on described the second case lid.
Preferably, in above-mentioned planetary reducer, also comprise the bearing (ball) cover being arranged on described the first case lid; Described input shaft is rotationally connected by bearing and planet carrier end plate.
Preferably, in above-mentioned planetary reducer, between described bearing (ball) cover and described input shaft, be provided with the first oil sealing; Between described the second case lid and described output shaft, be provided with the second oil sealing.
Preferably, in above-mentioned planetary reducer, the inner of described input shaft is contained in the inner groove of described output shaft, and the inner of described input shaft is rotationally connected by the inner groove of bearing and described output shaft.
Preferably, in above-mentioned planetary reducer, described planet wheel shaft and described planet carrier coupling shaft are all fixed on described planet carrier end plate and described output shaft by flush end Cock screw.
Preferably, in above-mentioned planetary reducer, on described the second case lid, be provided with fuel outlet, described fuel outlet is provided with plug screw.
Compared with prior art, the beneficial effects of the utility model are:
The planetary reducer that the utility model provides, idle pulley and idler shaft are increased, ring gear is rotationally connected with in reduction-gear housing shell, like this, is transferred to output shaft from the power dividing of input shaft transmission, be divided into two-way, wherein a road power passes to planet wheel through input gear, and planet wheel drives planet wheel shaft and planet carrier end plate to rotate around the axis of input shaft, because planet carrier end plate is connected with output shaft by planet wheel shaft, therefore, this road power finally passes to output shaft; Another road power passes to planet wheel through input gear, and planet wheel passes to ring gear, and ring gear passes to output shaft through idle pulley.Compared with the planetary reducer that only has a road power delivery in the past, the utility model adopts the planetary reducer of power dividing transmission, reduce the intensity of load of single part in retarder, under the condition of equal-wattage, can reduce the size of single part, thereby reduce on the whole the volume and weight of planetary reducer.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or scheme of the prior art, to accompanying drawing that describe required use in embodiment or prior art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of planetary reducer that Fig. 1 provides for model utility embodiment;
Fig. 2 is the partial enlarged drawing of the A part in Fig. 1;
The transmission sketch of a kind of planetary reducer that Fig. 3 provides for the utility model embodiment.
In above-mentioned Fig. 1-Fig. 3, 1 is input shaft, 2 is the first oil sealing, 3 is bearing, 4 is bearing, 5 is the first case lid, 6 is spring washer, 7 is plain washer, 8 is hexagon socket cap head screw, 9 is O shape rubber seal, 10 is case shell main body, 11 is hexagon socket cap head screw, 12 is the second case lid, 13 is output shaft, 14 is the second oil sealing, 15 is tapered roller bearing, 16 is idler shaft, 17 is needle bearing, 18 is idle pulley, 19 is ring gear, 20 is interior hexagonal flush end Cock screw, 21 is planet wheel, 22 is roller bearing, 23 is planet wheel shaft, 24 is hexagon socket cap head screw, 25 is O shape rubber seal, 26 is bearing (ball) cover, 27 is planet carrier end plate, 28 is bearing, 29 is planet carrier coupling shaft, 30 is fuel outlet, 31 is plug screw.
Embodiment
Core of the present utility model has been to provide a kind of planetary reducer, under Same Efficieney condition, has reduced the volume of planetary reducer.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on embodiment of the present utility model, all other embodiments that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belong to the scope that the utility model is protected.
Please refer to Fig. 1 and Fig. 2, the structural representation of a kind of planetary reducer that Fig. 1 provides for model utility embodiment; Fig. 2 is the partial enlarged drawing of the A part in Fig. 1; The transmission sketch of a kind of planetary reducer that Fig. 3 provides for the utility model embodiment.
The utility model embodiment provides a kind of planetary reducer, comprises reduction-gear housing shell, input shaft 1, output shaft 13, input gear, planet carrier end plate 27, planet wheel shaft 23, planet wheel 21, ring gear 19, idler shaft 16 and idle pulley 18; Wherein, reduction-gear housing shell is for the above part of accommodating installation; Input gear is arranged on input shaft 1, is preferably integrative-structure, i.e. input gear axle certainly, can be also Split connection structure; Output shaft 13 is coaxially arranged with input shaft 1, and input shaft 1 and output shaft 13 are all rotatably installed in reduction-gear housing shell, and the input end of input shaft 1 stretches out reduction-gear housing shell, and the output terminal of output shaft 13 stretches out reduction-gear housing shell; Planet carrier end plate 27 is rotatably installed on reduction-gear housing shell, coaxially arranged with input shaft 1; Planet wheel shaft 23 is fixedly connected on planet carrier end plate 27 and output shaft 13, and planet carrier end plate 27 is rotated together with output shaft 13; Planet wheel 21 is rotationally connected with on planet wheel shaft 23, and planet wheel 21 connects one to one with planet wheel shaft 23, all arranges multiplely, and planet wheel 21 engages with input gear; Ring gear 19 is rotationally connected with in reduction-gear housing shell, and ring gear 19 engages with planet wheel 21; Idle pulley 18 is arranged between ring gear 19 and output shaft 13, and all engage with the output gear of ring gear 19 and output shaft 13, idle pulley 18 and idler shaft 16 corresponding being rotationally connected one by one, and idler shaft 16 is fixed in reduction-gear housing shell, and the quantity of idle pulley 18 and idler shaft 16 is multiple.
The working principle of above-mentioned planetary reducer is: through-put power starts to transmit from input shaft 1, clockwise rotate as example and describe (certainly taking input shaft 1, according to real work needs, determine turning to of input shaft 1), power is delivered to after input gear, through-put power starts shunting, be divided into two-way, wherein the bang path of first via power is: input gear clockwise rotates, drive oppositely rotation counterclockwise of planet wheel 21, simultaneously due to the in the same way clockwise impetus of input gear to planet wheel 21, make planet wheel 21, planet wheel shaft 23 clockwise rotates around the axis of input shaft 1 together with planet carrier end plate 27, and because planet wheel shaft 23 is fixed together planet carrier end plate 27 and output shaft 13, therefore, drive output shaft 13 to clockwise rotate, this road power delivery completes, meanwhile, the transmission path of the second road power is: input gear clockwise rotates, drive oppositely rotation counterclockwise of planet wheel 21, planet wheel 21 engages with ring gear 19, therefore, planet wheel 21 promotes ring gear 19 and rotates counterclockwise in the same way, ring gear 19 engages with idle pulley 18, idle pulley 18 engages with the output gear of output shaft 13, thereby make turning to of output shaft 13 contrary with ring gear 19, output shaft 13 clockwise rotates, and the output shaft 13 while transmission with first via power turns to identical, two-way power converges again, is transferred to output shaft 13.Can find out, planetary reducer of the present utility model adopts power is first shunted to the transfer mode converging again, total through-put power is divided into relatively little branch power, the load that makes to act on single part reduces, compared with a road power transfer mode of the prior art, under equal total output condition, the size of the single part in planetary reducer of the present utility model can reduce, thereby has reduced overall volume and the weight of planetary reducer.Compared with the planetary reducer of same specification volume and weight of the prior art, the planetary reducer in the utility model can meet more powerful transmission.
Further optimize planetary reducer, the planetary reducer in the present embodiment also comprises the multiple planet carrier coupling shafts 29 that are fixedly connected with planet carrier end plate 27 and output shaft 13, further planet carrier end plate 27 and output shaft 13 are fixed together, improves join strength.Output shaft 13 the inners are disc-shaped structure, overlap in the projection of axial direction with planet carrier end plate 27.
As optimization, the quantity of the planet carrier coupling shaft 29 in the present embodiment is at least three, it can be three, four or more, determine quantity and the size of planet carrier coupling shaft 29 according to the actual size of planetary reducer, certainly, under the condition that meets strength demand, the quantity of planet carrier coupling shaft 29 can also be two.
Further, the quantity of the planet wheel 21 in the present embodiment is at least three, and more preferably three, the quantity of idle pulley 18 is also at least three, more preferably three.In first via power transmits, multiple planet wheels 21 are further divided into multiple branch roads by first via power and pass to output shaft 13, the load acting on each planet wheel 21 is further reduced, thereby can further reduce the size of planet wheel 21 and planet wheel shaft 23, the quantity of planet wheel 21 can also be two, four or more, does not specifically limit at this.In like manner, multiple idle pulleys 18 are further divided into multiple branch roads by the second road power and pass to output shaft 13, and the load on each idle pulley 18 is further reduced, thereby can further reduce the size of idle pulley 18 and idler shaft 16.
Preferably, the planet wheel 21 in the present embodiment, planet carrier coupling shaft 29 are evenly alternately distributed between planet frame end plate 27 and output shaft 13, make stressed more evenly, and structure is more firm.Certainly, planet wheel 21 and planet carrier end plate 27 also can uneven distributions, are not specifically limited at this.In like manner, idle pulley 18 is also evenly distributed in reduction-gear housing shell.
Reduction-gear housing shell is optimized, and the reduction-gear housing shell in the present embodiment comprises the first case lid 5, the second case lid 12 and case shell main body 10; The first case lid 5 and the second case lid 12 are fixed by screws in respectively the two ends of case shell main body 10, more preferably, fixing by hexagon socket cap head screw 8 between the first case lid 5 and case shell main body 10, for fixation, support the use with hexagon socket cap head screw 8 by spring washer 6 and plain washer 7, prevent from becoming flexible.And on the second case lid 12, offer counterbore, by hexagon socket cap head screw 11, the second case lid 12 is fixing with case shell main body 10.Further, the position being connected with case shell main body 10 at the first case lid 5, the second case lid 12 is provided with O shape rubber seal 9, ensures sealing; Planet carrier end plate 27 is rotationally connected by bearing 4 and the first case lid 5; Idler shaft 16 is fixedly mounted on the second case lid 12.
Further, planetary reducer also comprises the bearing (ball) cover 26 being arranged on the first case lid 5, bearing (ball) cover 26 is fixedly connected on the first case lid 5 by hexagon socket cap head screw 24, input shaft 1 is rotationally connected by bearing 3 and planet carrier end plate 27, and between bearing (ball) cover 26 and input shaft 1, be provided with the first oil sealing 2, between the second case lid 12 and output shaft 13, be provided with tapered roller bearing 15 and the second oil sealing 14, planetary reducer inner sealing is got up, prevent leakage of oil; Between bearing (ball) cover 26 and the first case lid 5, be also provided with O shape rubber seal 25.
As optimization, the inner of input shaft 1 in the present embodiment is contained in the inner groove of output shaft 13, and the inner of input shaft 1 is rotationally connected by bearing 28 and the inner groove of output shaft 13, arrange is like this in order further to save space, support input shaft 1 by output shaft 13, make planetary reducer structure compacter.
For fixing planet wheel shaft 23 and planet carrier coupling shaft 29, in the present embodiment adopts, hexagonal flush end Cock screw 20 is all fixed on planet wheel shaft 23, planet carrier coupling shaft 29 on planet carrier end plate 27 and output shaft 13, certainly, except adopt interior hexagonal flush end Cock screw 20 fixing, can also be connected and fixed by key, realizing fixing mode has a variety ofly, will not enumerate at this.
In the present embodiment, on the second case lid 13, be provided with fuel outlet 30, fuel outlet 30 is by plug screw 31 and packing ring sealing, and plug screw 31 adopts hexagonal socket head plug, certainly, can also be outer-hexagonal plug screw etc.It is in order to be convenient for changing the lubricant oil in planetary reducer that fuel outlet 30 is set.
Use to bearing is optimized, between planet wheel 21 and planet wheel shaft 23, be connected by roller bearing 22, between idle pulley 18 and idler shaft 16, be connected by needle bearing 17, between input shaft 1 and planet carrier end plate 27, between planet carrier end plate 27 and the first case lid 5, be all connected by deep groove ball bearing between input shaft 1 and output shaft 13.Certainly, select suitable bearing according to actual conditions, be not limited to above-mentioned bearing.
The utility model embodiment provides a kind of main transmission parameter of planetary reducer, for reference, is specially: the number of teeth of input gear: Z1=17; Planet wheel 21 numbers of teeth: Z2=26; Ring gear 19 numbers of teeth: Z3=70; Idle pulley 18 gears: Z4=20; The number of teeth of the output gear of output shaft 13: Z5=29; Modulus: m=5; Velocity ratio: i=6.8; Load torque: Tf=25000N.m; Transmission efficiency: >90%; Safety coefficient: 2.5; Sound level :≤60.Certainly, above-mentioned data are a specific implementation, and those skilled in the art can adjust every data according to actual needs.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and other embodiments' difference, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to these embodiments' multiple amendment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a planetary reducer, comprising: reduction-gear housing shell; Input shaft (1); The output shaft (13) coaxially arranged with described input shaft (1); Be arranged on the input gear on described input shaft (1); Be rotatably installed in the planet carrier end plate (27) on described reduction-gear housing shell; Be fixedly connected with multiple planet wheel shafts (23) of described planet carrier end plate (27) and described output shaft (13); Be rotationally connected with the planet wheel (21) on described planet wheel shaft (23), described planet wheel (21) engages with described input gear; The ring gear (19) engaging with described planet wheel (21);
It is characterized in that, described ring gear (19) is rotationally connected with in described reduction-gear housing shell;
Also comprise: the multiple idle pulleys (18) that all engage with the output gear of described ring gear (19) and described output shaft (13);
Be rotationally connected and be fixed on the idler shaft (16) in described reduction-gear housing shell with described idle pulley (18).
2. planetary reducer according to claim 1, is characterized in that, also comprises the multiple planet carrier coupling shafts (29) that are fixedly connected with described planet carrier end plate (27) and described output shaft (13).
3. planetary reducer according to claim 2, is characterized in that, the quantity of described planet carrier coupling shaft (29) is at least three.
4. planetary reducer according to claim 1, is characterized in that, the quantity of described planet wheel (21) is at least three, and the quantity of described idle pulley (18) is at least three.
5. planetary reducer according to claim 1, is characterized in that, described reduction-gear housing shell comprises the first case lid (5), the second case lid (12) and case shell main body (10);
Described the first case lid (5) and described the second case lid (12) are arranged on respectively the two ends of described case shell main body (10);
Described planet carrier end plate (27) is rotationally connected with on described the first case lid (5) by bearing (4);
Described idler shaft (16) is arranged on described the second case lid (12).
6. planetary reducer according to claim 5, is characterized in that, also comprises the bearing (ball) cover (26) being arranged on described the first case lid (5); Described input shaft (1) is rotationally connected by bearing (3) and planet carrier end plate (27).
7. planetary reducer according to claim 6, is characterized in that, between described bearing (ball) cover (26) and described input shaft (1), is provided with the first oil sealing (2); Between described the second case lid (12) and described output shaft (13), be provided with the second oil sealing (14).
8. planetary reducer according to claim 1, it is characterized in that, the inner of described input shaft (1) is contained in the inner groove of described output shaft (13), and the inner of described input shaft (1) is rotationally connected by bearing (28) and the inner groove of described output shaft (13).
9. planetary reducer according to claim 2, it is characterized in that, described planet wheel shaft (23) and described planet carrier coupling shaft (29) are all fixed on described planet carrier end plate (27) and described output shaft (13) by interior hexagonal flush end Cock screw (20).
10. according to the planetary reducer described in claim 5 or 7 any one, it is characterized in that, on described the second case lid (12), be provided with fuel outlet (30), plug screw (31) is installed on described fuel outlet (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867920.4U CN203730664U (en) | 2013-12-26 | 2013-12-26 | Planetary reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320867920.4U CN203730664U (en) | 2013-12-26 | 2013-12-26 | Planetary reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730664U true CN203730664U (en) | 2014-07-23 |
Family
ID=51200742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320867920.4U Withdrawn - After Issue CN203730664U (en) | 2013-12-26 | 2013-12-26 | Planetary reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730664U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671741A (en) * | 2013-12-26 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Planetary speed reducer |
| CN105065647A (en) * | 2015-08-18 | 2015-11-18 | 平湖市当湖街道飞天人机械图文设计服务部 | External cylinder cover of decelerating mechanism of computer embroidery machine |
-
2013
- 2013-12-26 CN CN201320867920.4U patent/CN203730664U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671741A (en) * | 2013-12-26 | 2014-03-26 | 重庆川仪自动化股份有限公司 | Planetary speed reducer |
| CN103671741B (en) * | 2013-12-26 | 2016-05-04 | 重庆川仪自动化股份有限公司 | A kind of planetary reduction gear |
| CN105065647A (en) * | 2015-08-18 | 2015-11-18 | 平湖市当湖街道飞天人机械图文设计服务部 | External cylinder cover of decelerating mechanism of computer embroidery machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20160504 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |