CN202484213U - Novel precise cycloid reducer - Google Patents
Novel precise cycloid reducer Download PDFInfo
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- CN202484213U CN202484213U CN2012200960642U CN201220096064U CN202484213U CN 202484213 U CN202484213 U CN 202484213U CN 2012200960642 U CN2012200960642 U CN 2012200960642U CN 201220096064 U CN201220096064 U CN 201220096064U CN 202484213 U CN202484213 U CN 202484213U
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- cycloid wheel
- boss
- wheel
- cycloid
- output disc
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Abstract
The utility model relates to a novel precise cycloid reducer comprising a rotating arm, a rotating arm bearing, a cycloid wheel with a boss and a sleeve, and output trays with grooves and the bosses. The cycloid wheel is meshed with teeth or pin teeth on an annular gear, and transmits motions and power by matching the boss and the sleeve on the cycloid reducer with the grooves on the output trays. The two output trays can improve rigidity and load bearing by fixing the bosses and screws as a whole. The bosses can be constituted by a short shaft or an eccentric short shaft which is embedded in the cycloid wheel, and the sleeve and the bearing can also be arranged on the bosses. Therefore, the novel precise cycloid reducer has the advantages of being high in precision, efficiency, rigidity and load bearing, long in service life, and particularly suitable for robots in heavy-duty industry.
Description
Technical field
The utility model relates to a kind of novel precise cycloidal reducer, particularly a kind of novel precise cycloidal reducer that is applicable to heavily loaded industrial robot.
Background technique
Nineteen twenty-six German L.Braren has invented the cycloidal-pin wheel retarder, and he as planet wheel flank profil curve, as the central gear tooth curve, provides the planetary drive with small teeth difference structure the same with the involute less tooth difference transmission mode with circular arc with the curtate epicycloid equal space line.The Sumitomo of SUMITOMO CHEMICAL company bought out this technology in 1938, and made improvements.At present the precision speed reduction device released of Sumitomo company mainly is a FA series, compares its advantage with worm and gear with common involute gear and is: high efficiency, large speed ratio, volume is little, in light weight, the stable drive noise is low.It adopts three eccentric cycloid wheel of staggered 120 degree to be meshed with pinwheel, and output disc is connected transmitting movement through protruding axle with three eccentric wheels.Though improved the excessive weak part of RV retarder rotary arm bearing bearing capacity of Japanese Supreme Being people company; But because the protruding axle that links to each other with output disc is that cantilever contacts with three eccentric wheels; Having much room for improvement aspect stressed and the transmitting torque; Simultaneously, one-sided output power transmission also influences the rigidity and the bearing capacity of retarder.
Summary of the invention
In order to overcome disadvantages of background technology, the utility model provide a kind of stressed evenly, the novel precise cycloidal reducer of long service life.
The technological scheme that the utility model adopts is: a kind of novel precise cycloidal reducer comprises eccentric pivoted arm, rotary arm bearing, cycloid wheel, ring gear, two output discs; Said eccentric pivoted arm is connected on the said output disc through respectively establish a rotary arm bearing at two ends; Said cycloid wheel is connected with said eccentric pivoted arm through roller bearing; Said eccentric pivoted arm supports said cycloid wheel; The engagement retarded motion is characterized in that on said cycloid wheel, being provided with several boss in said cycloid wheel and said ring gear formed, and said boss is positioned on the said cycloid wheel adjacent with said output disc; Be provided with the groove that quantity equates with said boss at said output disc, said groove supplies said boss to insert and remains Continuous Contact Transmission at boss described in said cycloid wheel, the output disc movement process and said groove.
On the basis of such scheme and as the preferred version of such scheme: the axis of said boss is positioned on the pitch circle of said cycloid wheel.
On the basis of such scheme and as the preferred version of such scheme: said sleeve or the bearing of on said boss, being provided with.
On the basis of such scheme and as the preferred version of such scheme: said quantity at said boss is 3.
On the basis of such scheme and as the preferred version of such scheme: on a said output disc, be provided with several protuberances; Said protuberance is positioned on the side of contiguous said cycloid wheel; Said protuberance respectively passes a through hole that is arranged on the said cycloid wheel; Another output disc is fixedly connected with said protuberance, and in the movement process of said cycloid wheel and said output disc, said protuberance does not contact with said through hole.
On the basis of such scheme and as the preferred version of such scheme: said protuberance is positioned on the pitch circle of described output disc, and said protuberance is imitative triangle, and the quantity of said protuberance is 3 and is uniformly distributed with.
On the basis of such scheme and as the preferred version of such scheme: said eccentric pivoted arm is made up of the eccentric shaft of two 180 degree that interlace, and each said eccentric shaft is respectively through cycloid wheel of roller bearing support.
On the basis of such scheme and as the preferred version of such scheme: said ring gear is made up of the pinwheel that the pin tooth constitutes, and said cycloid wheel is an epicyclodial wheel, and said pinwheel, said cycloid wheel and said output disc constitute the cycloidal-pin wheel speed reducer.
On the basis of such scheme and as the preferred version of such scheme: said ring gear is made up of the hypocycloid wheel, said hypocycloid wheel, said cycloid wheel and said output disc formation double cycloid speed reducer.
On the basis of such scheme and as the preferred version of such scheme: said boss is embedded in the cycloid wheel and with said cycloid wheel by minor axis and is fixedly connected to form.
The utility model is through above-mentioned concrete design; Compare with the FA driving mechanism; Owing to adopted new structure on the cycloid wheel, can the engaging force of cycloid wheel and ring gear directly be passed to output disc through boss, the defective of the unbalance stress that protruding of the output disc that has overcome FA causes because of cantilever with boss; Two output discs are fastenedly connected through the boss on it and are integral simultaneously, have improved the rigidity and the bearing capacity of whole retarder.Adopt new structure, can further improve transmission efficiency, rigidity and the bearing capacity of precision speed reduction device, be specially adapted to use in the heavily loaded robot.This novel precise cycloidal reducer has obtained " national high-tech research development plan (863 Program) subsidy ".
Description of drawings
Fig. 1 is the plan view of the utility model novel precise cycloidal reducer.
Fig. 2 is the sectional view of Fig. 1 along A-A face.
Fig. 3 is the sectional view of Fig. 2 along C-C face.
Fig. 4 is the sectional view of Fig. 2 along B-B face.
Fig. 5 is the force analysis figure of cycloid wheel.
Among the figure, 1 eccentric pivoted arm, 2 rotary arm bearings, 3 cycloid wheel, 4 ring gears, 5 pin teeth, 6 boss, 7 sleeves, 8 output discs, 9 grooves, 10 protuberances, 11 through holes, 12 screws, 13 eccentric shafts, 14 roller bearings.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
Like Fig. 1-shown in Figure 4, a kind of novel precise cycloidal reducer of the utility model comprises eccentric pivoted arm 1, rotary arm bearing 2, cycloid wheel 3, ring gear 4, two output discs 8; Said eccentric pivoted arm 1 is connected on the said output disc 8 through respectively establish a rotary arm bearing 2 at two ends; Said cycloid wheel 3 is connected with said eccentric pivoted arm 1 through roller bearing 14; Said eccentric pivoted arm supports said cycloid wheel 3; The engagement retarded motion is characterized in that on said cycloid wheel, being provided with several boss 6 in said cycloid wheel 3 formed with said ring gear, and it is adjacent with said output disc 8 that said boss 6 is positioned on the said cycloid wheel 3; Be provided with the groove 9 that quantity equates with said boss at said output disc 8, said groove 9 supplies said boss 6 to insert and remains Continuous Contact Transmission at boss described in said cycloid wheel, the output disc movement process 6 and said groove 9.In order to realize that boss described in cycloid wheel, the output disc movement process and said groove remain the purpose of Continuous Contact Transmission, on the size relationship of boss and groove, should satisfy: the internal diameter of groove equals the external diameter+2E of boss; After boss is set up other part, should with the external diameter of this part benchmark.
As shown in Figure 3; In the present embodiment; Engagement formed retarded motion and can adopt following proposal in ring gear and cycloid wheel formed: said ring gear 4 is by pin tooth 5 and be used to install the pinwheel that the circle ring disk of this pin tooth constitutes and form said pinwheel and said cycloid wheel 3 and said output disc 8 formation cycloidal-pin wheel speed reducer.Certainly, pin tooth 5 also can be installed on the cycloid wheel, and with the ring gear that forms by hypocycloid wheel in engagement forming to slow down and moves.As the distortion of the foregoing description, said ring gear is formed by the hypocycloid wheel, and cycloid wheel is an epicyclodial wheel, and hypocycloid wheel and epicyclodial wheel are meshed, and said hypocycloid wheel, said cycloid wheel 3 and said output disc 8 constitute the double cycloid speed reducer.
As shown in Figure 5, know that according to the force analysis of cycloid wheel because cycloid passes through boss when output disc transmitting movement and moment, power concentrates on the pitch circle of cycloid wheel.The axis of said boss 6 is positioned on the pitch circle of said cycloid wheel 3.The quantity of boss can be 1,2,3,4 even more a plurality of, then on pitch circle, is uniformly distributed with to good with boss when a plurality of when selecting for use.Certainly, the position of boss also can be on other position of cycloid wheel.
In order to reduce the wearing and tearing between boss and output disc, saidly on said boss 6, be provided with sleeve 7 or bearing.Be provided with the cycloidal reducer of sleeve, also be convenient to change, reduce user cost effectively when the sleeve wear extent is excessive.
In order two output discs to be realized being rigidly connected; On a said output disc, be provided with several protuberances 10; Said protuberance 10 is positioned on the side of contiguous said cycloid wheel, and said protuberance 10 respectively passes a through hole 11 that is arranged on the said cycloid wheel 3, and another output disc is fixedly connected with said protuberance 10; In the movement process of said cycloid wheel and said output disc, said protuberance 10 does not contact with said through hole 11.Preferably, can output disc be fixed on the boss through screw 12.Same, two output discs also can be fixed together two output discs through the bolt nut cooperation.
In order better to realize being rigidly connected of two output discs, said protuberance 10 is positioned on the pitch circle of described output disc 8, and said protuberance 10 is imitative triangle, and its quantity is 3 and is uniformly distributed with.
In the utility model, said eccentric pivoted arm 1 is made up of the eccentric shaft 13 of two 180 degree that interlace, and each said eccentric shaft respectively supports a cycloid wheel 3 through roller bearing 14.Likewise, the utility model also can adopt an eccentric shaft, a cycloid wheel, realizes dynamic balancing through an equilibrium block is set on cycloid wheel.
In the utility model, the cross section of boss 6 and groove 9 is circle.Boss 7 can be integrally formed with cycloid wheel, also can be to form with the cycloid wheel split.When forming, split can be convenient to make and install.When boss and cycloid wheel split, on the relevant position of cycloid wheel, the hole is set, minor axis is embedded in this hole and minor axis is fixedly connected with cycloid wheel, and then outwardly directed part forms boss in the cycloid wheel.Minor axis can also can be that eccentric minor axis constitutes, and also can be with sleeve or bearing on it by cylindrical stub shaft.
Present embodiment should not be regarded as the restriction to the utility model, but any improvement of doing based on the spirit of the utility model, all should be within the protection domain of the utility model.
Claims (10)
1. a novel precise cycloidal reducer comprises eccentric pivoted arm (1), rotary arm bearing (2), cycloid wheel (3), ring gear (4), two output discs (8); Said eccentric pivoted arm (1) is connected on the said output disc (8) through respectively establish a rotary arm bearing (2) at two ends; Said cycloid wheel (3) is connected with said eccentric pivoted arm (1) through roller bearing (14); Said eccentric pivoted arm supports said cycloid wheel (3); Engagement retarded motion in said cycloid wheel (3) forms with said ring gear; It is characterized in that on said cycloid wheel, being provided with several boss (6), said boss (6) is positioned at said cycloid wheel (3) and goes up adjacent with said output disc (8); Be provided with the groove (9) that quantity equates with said boss at said output disc (8), said groove (9) supplies said boss (6) to insert and remains Continuous Contact Transmission at boss (6) described in said cycloid wheel, the output disc movement process and said groove (9).
2. novel precise cycloidal reducer according to claim 1 is characterized in that the axis of said boss (6) is positioned on the pitch circle of said cycloid wheel (3).
3. novel precise cycloidal reducer according to claim 1 is characterized in that said sleeve (7) or the bearing of on said boss (6), being provided with.
4. novel precise cycloidal reducer according to claim 2, the quantity that it is characterized in that said boss is 3.
5. according to each described novel precise cycloidal reducer of claim 1-4; It is characterized in that on a said output disc, being provided with several protuberances (10); Said protuberance (10) is positioned on the side of contiguous said cycloid wheel; Said protuberance (10) respectively passes a through hole (11) that is arranged on the said cycloid wheel (3); Another output disc is fixedly connected with said protuberance (10), and in the movement process of said cycloid wheel and said output disc, said protuberance (10) does not contact with said through hole (11).
6. novel precise cycloidal reducer according to claim 4 is characterized in that said protuberance (10) is positioned on the pitch circle of described output disc (8), and said protuberance (10) is imitative triangle, and the quantity of said protuberance (10) is 3 and is uniformly distributed with.
7. novel precise cycloidal reducer according to claim 1 is characterized in that said eccentric pivoted arm (1) is made up of the eccentric shaft (13) of two 180 degree that interlace, and each said eccentric shaft is respectively through roller bearing (a 14) support cycloid wheel (3).
8. according to each described novel precise cycloidal reducer of claim 1-4; It is characterized in that said ring gear (4) is made up of said pinwheel and said cycloid wheel (3) and said output disc (8) formation cycloidal-pin wheel speed reducer the pinwheel that pin tooth (5) constitutes.
9. according to each described novel precise cycloidal reducer of claim 1-4; It is characterized in that said ring gear is formed by the hypocycloid wheel; Said cycloid wheel is an epicyclodial wheel, and said hypocycloid wheel, said cycloid wheel (3) and said output disc (8) constitute the double cycloid speed reducer.
10. novel precise cycloidal reducer according to claim 1 is characterized in that said boss is embedded in the cycloid wheel and with said cycloid wheel by minor axis to be fixedly connected to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200960642U CN202484213U (en) | 2012-03-14 | 2012-03-14 | Novel precise cycloid reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200960642U CN202484213U (en) | 2012-03-14 | 2012-03-14 | Novel precise cycloid reducer |
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| Publication Number | Publication Date |
|---|---|
| CN202484213U true CN202484213U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200960642U Expired - Lifetime CN202484213U (en) | 2012-03-14 | 2012-03-14 | Novel precise cycloid reducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588519A (en) * | 2012-03-14 | 2012-07-18 | 浙江恒丰泰减速机制造有限公司 | Novel precise cycloidal speed reducer |
| CN104565216A (en) * | 2013-10-28 | 2015-04-29 | 北京配天技术有限公司 | Cycloidal pin wheel speed reducer and robot |
-
2012
- 2012-03-14 CN CN2012200960642U patent/CN202484213U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588519A (en) * | 2012-03-14 | 2012-07-18 | 浙江恒丰泰减速机制造有限公司 | Novel precise cycloidal speed reducer |
| CN104565216A (en) * | 2013-10-28 | 2015-04-29 | 北京配天技术有限公司 | Cycloidal pin wheel speed reducer and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 325000 Wenzhou economic and Technological Development Zone, Zhejiang Binhai Road, No. 1489 Patentee after: Hengfengtai precision machinery Limited by Share Ltd Address before: 325016, Wenzhou, Zhejiang province Ouhai District, Guo Town, Lantau Industrial Zone, No. 2-5 Patentee before: Zhejiang Hengfengtai Reducer MFG Co., Ltd |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |