CN104074930A - Coaxial cycloid speed reducer with single-input and same-side double-output - Google Patents
Coaxial cycloid speed reducer with single-input and same-side double-output Download PDFInfo
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- CN104074930A CN104074930A CN201410342765.3A CN201410342765A CN104074930A CN 104074930 A CN104074930 A CN 104074930A CN 201410342765 A CN201410342765 A CN 201410342765A CN 104074930 A CN104074930 A CN 104074930A
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- wheel housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/323—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising eccentric crankshafts driving or driven by a gearing
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a coaxial cycloid speed reducer with single-input and same-side double-output. An output shaft is connected with three eccentric bushings through keys in a staggered mode, so that three rotary arm cranks with the eccentric positions being staggered at 120 degrees are formed. The three rotary arm cranks are connected with a left cycloid wheel, a middle cycloid wheel and a right cycloid wheel respectively through cylindrical roller bearings. The three cycloid wheels have different cycloid tooth numbers and are provided with a plurality of pin holes which are evenly distributed and enable pins to penetrate through. The three cycloid wheels are meshed with gear pins on corresponding gear pin shells. The outer output gear pin shell is connected with the fixed gear pin shell through an outer supporting bearing, connected with an outer output sleeve shaft through a screw and connected with the inner output gear pin shell through an inner supporting bearing. The inner output gear pin shell is connected with an inner output shaft through a screw. The input shaft is connected with a left box cover and the inner output shaft through supporting bearings. According to the cycloid speed reducer, multi-level cycloid composite transmission structural design is adopted, single-input and same-side double-output transmission is achieved, and the cycloid speed reducer is particularly suitable for coaxial double-scull transmission of a stirrer, an aircraft, a ship and a submersible.
Description
Technical field
The present invention relates to a kind of cycloidal reducer, relate in particular to a kind of coaxial single input homonymy dual output cycloidal reducer.
Background technique
Cycloidal reducer has that velocity ratio is large, transmission efficiency is high, transmission accuracy is high, torsional rigid is high and the plurality of advantages such as the life-span is long, is therefore widely used in precision mechanical transmission field.Cycloidal reducer is owing to adopting planetary transmission structure, so compact structure is compared with the gear reducer of same power, volume and weight all can reduce 1/2～1/3.Existing cycloidal reducer single staged transmission ratio can reach 11～87, and secondary transmission ratio can reach 121～5133.In addition, cycloidal reducer smooth running, noise free, and there is larger overload and bear the ability compared with thump.
Existing cycloidal reducer is mainly realized the coaxial transmission technology of single-input single-output, cannot realize the transmission of single input homonymy dual output.For example, publication number is CN102252062A, the Chinese invention patent that open day is on November 23rd, 2011 discloses a kind of complex precise cycloidal speed reducer, publication number is CN102242795A, the Chinese invention patent that open day is on November 16th, 2011 discloses a kind of precision cycloid decelerator, the disclosed cycloidal reducer of above-mentioned two patents is all by two-stage cycloid Composite Transmission structural design, only can realize coaxial single-input single-output transmission.
Existing coaxial single input homonymy Dual-output reducer is mainly realized by complicated gear drive system, velocity ratio, and transmission accuracy and transmission efficiency are difficult to further improve.Moreover, existing coaxial single input homonymy Dual-output reducer is mainly realized two output shafts and is rotated relative to forward and reverse, be difficult to realize two output shafts by the change of retarder internal structure and rotate relative to rotating Vortex or relative to forward and reverse, and two outputs are difficult to realize velocity ratio independent design.
Summary of the invention
For overcoming the defect in prior art, the invention provides a kind of coaxial single input homonymy dual output cycloidal reducer.This retarder has the advantages such as highi degree of accuracy, high efficiency, high rigidity, high-mechanic and long service life simultaneously.Be particularly suitable in the coaxial transmission of two oars of stirrer, aircraft, boats and ships and submersible.
In order to solve the problems of the technologies described above, the technological scheme of a kind of coaxial single input homonymy dual output cycloidal reducer of the present invention is, this retarder comprises input shaft, left side case lid and right case cover, between described left side case lid and right case cover, be fixed with fixedly pin wheel housing, one end of described input shaft is connected with described left side case lid by spring bearing, the other end of described input shaft is connected with interior output shaft by spring bearing, on described input shaft, key is connected with three eccentric bushings that are axially arranged in juxtaposition, described three eccentric bushings have different throw of eccentric and eccentric phase is staggered 120 °, thereby form and to there is the be staggered pivoted arm crank of 120 ° of three eccentric phases, on three eccentric bushings, connecting a left side with the different cycloid numbers of teeth separately respectively by a roller bearing puts cycloid wheel, middle cycloid wheel and the right side and puts cycloid wheel, a described left side puts cycloid wheel, middle cycloid wheel and right putting is evenly equipped with respectively the column pin hole that quantity is identical in cycloid wheel, also include the pin identical with column pin hole quantity, each pin is put cycloid wheel, middle cycloid wheel and the right side simultaneously and is put the column pin hole in cycloid wheel through a described left side, on described interior output shaft, be set with outer output quill, described right case cover is sleeved on described outer output quill, between described outer output quill and described interior output shaft, be Spielpassung between described right case cover and described outer output quill, on described interior output shaft, be fixed with interior output pin wheel housing, in described outer output quill, be fixed with outer output pin wheel housing, described outer output pin wheel housing and the described outer support bearing connection and positioning that fixedly adopts between pin wheel housing, adopt inner support bearing connection and positioning between described outer output pin wheel housing and described interior output pin wheel housing, a described left side is put cycloid wheel and is meshed with the gear pin being embedded on described fixedly pin wheel housing, in the middle of described, cycloid wheel is meshed with the gear pin being embedded on described outer output pin wheel housing, the described right side is put cycloid wheel and is meshed with the gear pin being embedded on described interior output pin wheel housing.
A kind of coaxial single input homonymy dual output cycloidal reducer of the present invention, wherein, three eccentric bushings that are arranged in juxtaposition, adopt spacer ring separated in the axial direction.
The gear pin of inlaying respectively on described fixedly pin wheel housing, outer output pin wheel housing and interior output pin wheel housing adopts circlip to fix.
A described left side put cycloid wheel and fixedly between the gear pin on pin wheel housing, described in the middle of between gear pin on cycloid wheel and outer output pin wheel housing and the described right side put and between the gear pin on cycloid wheel and interior output pin wheel housing, there is respectively a tooth when poor, this retarder has following two and exports velocity ratios:
In formula (1) and formula (2), i
1for the output velocity ratio between outer output quill (18) and input shaft, i
2for the output velocity ratio between interior output shaft and input shaft, Z
1for putting the number of teeth of cycloid wheel in a left side; Z
2for the fixing number of pin wheel housing upper pin gear pin; Z
3the number of teeth for middle cycloid wheel; Z
4number for the gear pin on outer output pin wheel housing; Z
5for putting the number of teeth of cycloid wheel in the right side; Z
6number for the gear pin on interior output pin wheel housing; "+", represents that turning to of outer output quill or interior output shaft is identical with steering input shaft; "-", represents that turning to of outer output quill or interior output shaft is contrary with steering input shaft.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is by the design of above-mentioned multistage cycloidal-pin wheel Composite Transmission structure, can realize the transmission of retarder list input homonymy dual output, and possess the advantage that velocity ratio is large, precision is high, efficiency is high, rigidity is high, carry high and long service life, be particularly suitable in the coaxial transmission of two oars of stirrer, aircraft, boats and ships and submersible.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of coaxial single input homonymy dual output cycloidal reducer of the present invention;
Fig. 2 is the A-A sectional drawing of cycloidal reducer shown in Fig. 1;
Fig. 3 is the B-B sectional drawing of cycloidal reducer shown in Fig. 1;
Fig. 4 is the C-C sectional drawing of cycloidal reducer shown in Fig. 1.
In figure: 1-input shaft, 2-key, 31,32,33-eccentric bushing, 4-roller bearing, 5-puts cycloid wheel in a left side, cycloid wheel in the middle of 6-, and 7-puts cycloid wheel in the right side, 8-column pin hole, 9-pin, 10-is pin wheel housing fixedly, and 11-exports pin wheel housing outward, output pin wheel housing in 12-, 131,132,133-gear pin, 14-outer support bearing, 15-inner support bearing, 16-spring bearing, 17-screw, 18-exports quill outward, output shaft in 19-, 20-left side case lid, 21-right case cover, 22-spacer ring, 23-circlip.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical solution of the present invention is described in further detail.
A kind of coaxial single input homonymy dual output cycloidal reducer of the present invention, comprise input shaft 1, left side case lid 20 and right case cover 21, between described left side case lid 20 and right case cover 21, by screw, be fixed with fixedly pin wheel housing 10, that is, left side case lid 20, fixedly pin wheel housing 10 and right case cover 21 have formed the housing of this retarder.One end of described input shaft 1 is connected with described left side case lid 20 by spring bearing, at the input end of input shaft 1, is provided with the bearing cap fixing with left side case lid 20, and the other end of described input shaft 1 is connected with interior output shaft 19 by spring bearing 16.
On described input shaft 1, by key 2, be connected with axially side by side three eccentric bushings 31,32,33 that (in Fig. 1 from left to right successively) arranges, three eccentric bushings that are arranged in juxtaposition, adopt spacer ring 22 separation in the axial direction.Eccentric phase between described three eccentric bushings 31,32,33 is staggered 120 °, thereby form, has the be staggered pivoted arm crank of 120 ° of three eccentric phases, three eccentric bushings 31, 32, on 33 (i.e. three pivoted arm cranks), a roller bearing 4 is housed respectively separately, be used for supporting three cycloid wheel, three cycloid wheel are that cycloid wheel 5 is put on a left side with the different cycloid numbers of teeth, cycloid wheel 7 is put on middle cycloid wheel 6 and the right side, cycloid wheel 5 is put on a described left side, middle cycloid wheel 6 and the right side are put and in cycloid wheel 7, are evenly equipped with respectively the column pin hole that quantity is identical, as shown in Figure 1, because the quantity of column pin hole in each cycloid wheel is identical, uniform angular orientation is consistent, thereby, can run through with a described left side simultaneously and put cycloid wheel 5 with a pin 9, middle cycloid wheel 6 and right putting in the column pin hole in cycloid wheel 7, for realizing pin 9, do not interfere stuck phenomenon with smooth and easy contact of column pin hole 8, therefore cycloid wheel 5 is put on a left side, middle cycloid wheel 6 and the right column pin hole of putting in cycloid wheel 7 are to be distributed in the circular hole on same radius standard pitch circle with different-diameter size, in cycloid wheel, the diameter of column pin hole is relevant with the throw of eccentric of cycloid wheel place eccentric bushing, as for common practise how to calculate the diameter of column pin hole in cycloid wheel and belong to the art, do not repeat them here.
On described interior output shaft 19, be set with outer output quill 18, between described outer output quill 18 and described interior output shaft 19, be Spielpassung, and be provided with seal ring; Described right case cover 21 is sleeved in described outer output quill 18, is Spielpassung, and is provided with seal ring between described right case cover 21 and described outer output quill 18.On described interior output shaft 19, by screw, be fixed with interior output pin wheel housing 12, in described outer output quill 18, adopt screw 17 to be fixed with outer output pin wheel housing 11, between described outer output pin wheel housing 11 and described fixedly pin wheel housing 10, adopt outer support bearing 14 connection and positionings, between described outer output pin wheel housing 11 and described interior output pin wheel housing 12, adopt two inner support bearing 15 connection and positionings; On described fixedly pin wheel housing 10, be inlaid with gear pin 131, on described outer output pin wheel housing 11, be inlaid with gear pin 132, on described interior output pin wheel housing 12, be inlaid with gear pin 133, the both sides of each gear pin adopt circlip 23 to be fixed in pin wheel housing separately.
A described left side is put cycloid wheel 5 and is meshed with the gear pin 131 being embedded on described fixedly pin wheel housing 10, as shown in Figure 2; In the middle of described, cycloid wheel 6 is meshed with the gear pin 132 being embedded on described outer output pin wheel housing 11, as shown in Figure 3; The described right side is put cycloid wheel 7 and is meshed with the gear pin 133 being embedded on described interior output pin wheel housing 12, as shown in Figure 4.
The double output shaft of retarder homonymy of the present invention, in output shaft 19 and outer output quill 18 on a described left side, put between the gear pin 131 on cycloid wheel 5 and fixing pin wheel housing 10, described in the middle of between gear pin 132 on cycloid wheel 6 and outer output the pin wheel housing 11 and described right side put and between the gear pin 133 on cycloid wheel 7 and interior output pin wheel housing 12, there is respectively a tooth when poor, there are following two and export velocity ratios:
I
1for the output velocity ratio between outer output quill 18 and input shaft 1, i
2for the output velocity ratio between interior output shaft 19 and input shaft 1, Z
1for putting the number of teeth of cycloid wheel 5 in a left side; Z
2for the fixing number of pin wheel housing 10 upper pin gear pins 131; Z
3the number of teeth for middle cycloid wheel 6; Z
4number for the gear pin 132 on outer output pin wheel housing 11; Z
5for putting the number of teeth of cycloid wheel 7 in the right side; Z
6number for the gear pin 133 on interior output pin wheel housing 12; "+", represents that outer output quill 18 or turning to of interior output shaft 19 turn to identical with input shaft 1; "-", represents turning to and input shaft 1 switched in opposite of outer output quill 18 or interior output shaft 19.
In retarder of the present invention, identical with steering input shaft or contrary specific to turning to of double output shaft, or the large I of two output shaft velocity ratios is carried out independent design.For example, getting a left side, to put the cycloid wheel number of teeth be 19, and fixedly the number of pin wheel housing upper pin gear pin is 20, the middle cycloid wheel number of teeth is 17, the number of the gear pin on outer output pin wheel housing is 18, and it is 21 that the cycloid wheel number of teeth is put on the right side, and the number of the gear pin on interior output pin wheel housing is 22.Utilize in the present invention and export can be calculated of velocity ratio, the output velocity ratio of the outer output quill of this retarder is+171, turns to identically with input shaft, and the output velocity ratio of interior output shaft is-209, turns to contrary with input shaft.
During retarder transmission of the present invention, power is inputted by input shaft 1, input shaft 1 is connected transmission of power is given by three eccentric phases, three the pivoted arm cranks that the eccentric bushing of 120 ° forms that are staggered by key, and three pivoted arm cranks drive a left side to put cycloid wheel 5, middle cycloid wheel 6 and the right side and put cycloid wheel 7 and rotate simultaneously.A left side put cycloid wheel 5 by with fixing pin wheel housing 10 on the engagement of gear pin 131 drive pin 9 to rotate, because pin 9 is put cycloid wheel 5, middle cycloid wheel 6 and right putting in cycloid wheel 7 through a left side, pin 9 can stir middle cycloid wheel 6 simultaneously and cycloid wheel 7 rotations are put on the right side.Under the driving of input shaft 1 and pin 9, middle cycloid wheel 6 is stirred outer output pin wheel housing 11 and is rotated, the right side is put cycloid wheel 7 and is stirred interior output pin wheel housing 12 rotations, thereby realize input shaft 1 and drive the outer output quill 18 of homonymy and the rotational motion of interior output shaft 19, and by the number of design cycloid wheel and the gear pin that is engaged with, realize this retarder and there are 2 different output velocity ratios.
Although by reference to the accompanying drawings the preferred implementation of retarder of the present invention is described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; in the situation that not departing from aim of the present invention, can also make a lot of distortion, within these all belong to protection of the present invention.
Claims (4)
1. a coaxial list is inputted homonymy dual output cycloidal reducer, comprise input shaft (1), left side case lid (20) and right case cover (21), between described left side case lid (20) and right case cover (21), be fixed with fixedly pin wheel housing (10), one end of described input shaft (1) is connected with described left side case lid (20) by spring bearing (16), the other end of described input shaft (1) is connected with interior output shaft (19) by spring bearing (16), it is characterized in that
The upper key (2) of described input shaft (1) is connected with three eccentric bushings (31,32,33) that are axially arranged in juxtaposition, described three eccentric bushings (31,32,33) have different throw of eccentric and eccentric phase is staggered 120 °, thereby form, have the be staggered pivoted arm crank of 120 ° of three eccentric phases;
On three eccentric bushings (31,32,33), connecting a left side with the different cycloid numbers of teeth separately respectively by a roller bearing (4) puts cycloid wheel (5), middle cycloid wheel (6) and the right side and puts cycloid wheel (7); Cycloid wheel (5) is put on a described left side, middle cycloid wheel (6) is put in cycloid wheel (7) and is evenly equipped with respectively the column pin hole that quantity is identical with the right side, also include the pin identical with column pin hole quantity, each pin is put cycloid wheel (5), middle cycloid wheel (6) and the right side and is put the column pin hole in cycloid wheel (7) simultaneously through a described left side;
On described interior output shaft (19), be set with outer output quill (18), described right case cover (21) is sleeved on described outer output quill (18), between described outer output quill (18) and described interior output shaft (19), be Spielpassung between described right case cover (21) and described outer output quill (18);
On described interior output shaft (19), be fixed with interior output pin wheel housing (12), in described outer output quill (18), be fixed with outer output pin wheel housing (11);
Between described outer output pin wheel housing (11) and described fixedly pin wheel housing (10), adopt outer support bearing (14) connection and positioning, between described outer output pin wheel housing (11) and described interior output pin wheel housing (12), adopt inner support bearing (15) connection and positioning;
A described left side is put cycloid wheel (5) and is meshed with the gear pin (131) being embedded on described fixedly pin wheel housing (10); In the middle of described, cycloid wheel (6) is meshed with the gear pin (132) being embedded on described outer output pin wheel housing (11); The described right side is put cycloid wheel (7) and is meshed with the gear pin (133) being embedded on described interior output pin wheel housing (12).
2. a kind of coaxial single input homonymy dual output cycloidal reducer according to claim 1, is characterized in that three eccentric bushings that are arranged in juxtaposition adopt spacer ring (22) separation in the axial direction.
3. a kind of coaxial list according to claim 2 is inputted homonymy dual output cycloidal reducer, it is characterized in that, the gear pin of inlaying respectively on described fixedly pin wheel housing (10), outer output pin wheel housing (11) and interior output pin wheel housing (12) adopts circlip (23) fixing.
4. according to any coaxial single input homonymy dual output cycloidal reducer in claim 1-3, it is characterized in that, a described left side put cycloid wheel (5) and fixedly between the gear pin (131) on pin wheel housing (10), described in the middle of between gear pin (132) on cycloid wheel (6) and outer output pin wheel housing (11) and the described right side put and between the gear pin (133) on cycloid wheel (7) and interior output pin wheel housing (12), there is respectively a tooth when poor, this retarder has following two and exports velocity ratios:
In formula (1) and formula (2), i
1for the output velocity ratio between outer output quill (18) and input shaft (1), i
2for the output velocity ratio between interior output shaft (19) and input shaft (1), Z
1for putting the number of teeth of cycloid wheel (5) in a left side; Z
2for the fixing number of pin wheel housing (10) upper pin gear pin (131); Z
3the number of teeth for middle cycloid wheel (6); Z
4number for the gear pin (132) on outer output pin wheel housing (11); Z
5for putting the number of teeth of cycloid wheel (7) in the right side; Z
6number for the gear pin (133) on interior output pin wheel housing (12); "+", represents that outer output quill (18) or turning to of interior output shaft (19) turn to identical with input shaft (1); "-", represents turning to and input shaft (1) switched in opposite of outer output quill (18) or interior output shaft (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410342765.3A CN104074930B (en) | 2014-07-17 | 2014-07-17 | A kind of coaxial single input homonymy dual output cycloidal reducer |
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|---|---|---|---|
| CN201410342765.3A CN104074930B (en) | 2014-07-17 | 2014-07-17 | A kind of coaxial single input homonymy dual output cycloidal reducer |
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| CN104074930A true CN104074930A (en) | 2014-10-01 |
| CN104074930B CN104074930B (en) | 2016-08-31 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191550A (en) * | 2017-07-13 | 2017-09-22 | 北京龙微智能科技股份有限公司 | RV decelerators |
| CN110005762A (en) * | 2019-04-17 | 2019-07-12 | 湖北汽车工业学院 | A kind of large transmission ratio planet-gear transmission device |
| CN110005779A (en) * | 2019-04-17 | 2019-07-12 | 湖北汽车工业学院 | A kind of small teeth number difference planet gear independent transmission device |
| CN110067834A (en) * | 2019-05-30 | 2019-07-30 | 兰州西腾润工装备制造有限公司 | A kind of large torque diameter gear needle roller speed reducer |
| CN111677819A (en) * | 2020-06-17 | 2020-09-18 | 祝宗煌 | Differential speed reducing mechanism and differential speed reducer |
| CN111853167A (en) * | 2020-08-17 | 2020-10-30 | 重庆大学 | Movable pin type cycloidal speed reducer |
| TWI741467B (en) * | 2019-01-17 | 2021-10-01 | 台達電子工業股份有限公司 | Cycloid speed reducer |
| US11168763B2 (en) | 2017-05-03 | 2021-11-09 | Delta Electronics, Inc. | Cycloid speed reducer |
| US11174918B2 (en) * | 2018-06-22 | 2021-11-16 | Sumitomo Heavy Industries, Ltd. | Reduction gear |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11168763B2 (en) | 2017-05-03 | 2021-11-09 | Delta Electronics, Inc. | Cycloid speed reducer |
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| CN110067834A (en) * | 2019-05-30 | 2019-07-30 | 兰州西腾润工装备制造有限公司 | A kind of large torque diameter gear needle roller speed reducer |
| CN111677819A (en) * | 2020-06-17 | 2020-09-18 | 祝宗煌 | Differential speed reducing mechanism and differential speed reducer |
| CN111853167A (en) * | 2020-08-17 | 2020-10-30 | 重庆大学 | Movable pin type cycloidal speed reducer |
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