CN103122973A - Rigid inside and outside tooth-profile-wrapped tooth reducer - Google Patents
Rigid inside and outside tooth-profile-wrapped tooth reducer Download PDFInfo
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- CN103122973A CN103122973A CN201310066037XA CN201310066037A CN103122973A CN 103122973 A CN103122973 A CN 103122973A CN 201310066037X A CN201310066037X A CN 201310066037XA CN 201310066037 A CN201310066037 A CN 201310066037A CN 103122973 A CN103122973 A CN 103122973A
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- 239000003638 chemical reducing agent Substances 0.000 title abstract description 12
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- 230000033001 locomotion Effects 0.000 claims description 15
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- 238000007789 sealing Methods 0.000 claims description 6
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- 230000009467 reduction Effects 0.000 description 15
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Abstract
The invention relates to a rigid inside and outside tooth-profile-wrapped tooth reducer which comprises a first level reducing mechanism and a second level reducing mechanism. The first level reducing mechanism comprises an eccentric wheel (101), a first turning arm bearing (5), an outer meshing curve wheel (7) and a gear pin (8), wherein the gear pin (8) is fixed on a first support (9) and is meshed with the outer meshing curve wheel (7) in an external mode. The second level reducing mechanism comprises an eccentric driving wheel (14), a second turning arm bearing (13), an inner meshing curve wheel (11) and an output disc (16), wherein the inner meshing curve wheel (11) is meshed and matched with the gear pin (8) in an internal mode, the output disc (16) is connected with an output shaft (20) of the output disc (16) in a linkage mode, the eccentric driving wheel (14) is connected with the outer meshing curve wheel (7) in a transmission mode through a pin (26), the inner meshing curve wheel (11) is connected with the output disc (16) in a transmission mode through a transmission pin (24), one side of the outer meshing curve wheel (7) is provided with a first reinforcing bracket (6), and one side of the inner meshing curve wheel (11) is further provided with a second reinforcing bracket (23). The rigid inside and outside tooth-profile-wrapped tooth reducer has the advantages of being small in the number of teeth, large in speed ratio, small in size, high in bearing and efficiency, long in service life, high in rigidity, and particularly suitable for a reducer for a heavy-load robot.
Description
Technical field
The present invention relates to a kind of industrial little tooth difference speed reducer, belong to the retarder technical field.The present invention is subsidized by " national high-tech research development plan (863 Program) ".
Background technique
The retarder that is used for the robot field mainly contains two large classes: harmonic speed reducer and planet-cycloid reducer.The harmonic speed reducer of Ceng Zuowei robot transmission main device, resiliently deformable by flexbile gear realizes retarded motion, its resiliently deformable is larger, the elasticity return difference that causes thus is also large, inevitably affects robot motion's accuracy, when transmitting than heavy load, the distortion flexbile gear is not the conjugate profiles engagement with just wheel engagement, it is low to protect accuracy life, can not be used for heavy-load robot, can only be used for underloading, underloading robot.Japan Rotary Vector(is called for short RV) retarder compare with harmonic wave drive speed reducer have that volume is little, lightweight, velocity ratio is large, rigidity is large, precision and the series of advantages such as efficient is high, smooth running, return difference is little, kinematic accuracy is high, be suitable for the heavy-load robot use.The up-to-date RV reducer of Japan further dwindles the volume of retarder by flexible bearing outer ring, and the robot body interface also diminishes thereupon, is representing that robot uses retarder to the trend of less better future development.Yet in the situation that the retarder constancy of volume, the velocity ratio of RV retarder is along with the increase of the pinwheel number of teeth, and the size decreases of the single tooth of cycloid and gear pin has affected the further raising of retarder bearing capacity.In addition, the requirement on machining accuracy of RV retarder is high, cost is high, has restricted its propagation and employment, particularly will satisfy two eccentric shaft machining accuracies that differ 180 degree layouts very difficult, and its precision directly affects transmission accuracy and the efficient of retarder.The large speed ratio of RV retarder is from its planetary reduction gear transmission and cycloidal-pin wheel gearing down, it is compound double reduction, can realize large reduction speed ratio with the series connection of Japan's FA retarder or the series connection of other speed reducer, but axial dimension can not satisfy the needs of robot little, the high rigidity of retarder volume, efficient carrying along with being in series of retarder doubly increases.Therefore, the retarder of few number of teeth, large speed ratio, small volume, high-mechanic, high efficiency long service be robot to the bottleneck of small and exquisite efficient large carrying future development, need to be resolved hurrily.
Summary of the invention
The objective of the invention is for the problems referred to above, by increasing by two hog frames that link with the output movement wheel, provide a kind of high rigidity, few number of teeth, large speed ratio, small volume, high-mechanic, high efficiency long service to be particularly suitable for the heavy-load robot retarder, guaranteeing effectively to reduce the volume and weight of retarder in few number of teeth, large speed ratio, efficient high-mechanic situation, and be easy to industrialization and seriation.
Technological scheme of the present invention is outer teeth profile bag tooth retarder in a kind of rigidity, includes the first support (9); The second support (10), itself and the first support (9) form a cavity volume; Input shaft (1), it is installed on the first support (9) by the first spring bearing (3); Output shaft (20), it is installed on the second support (10); And be installed on cavity volume interior first order reducing gear and second level reducing gear, and be characterized in: described first order reducing gear includes: eccentric wheel (101), and it is located on input shaft (1); The first rotary arm bearing (5), it is set on eccentric wheel (101); Outer gearing curve wheel (7), it is sheathed on the first rotary arm bearing (5); And gear pin (8), its be fixed on the first support (9) upper and with outer gearing curve wheel (7) outer gearing; Described second level reducing gear includes: eccentric gearing wheel (14), and it is installed on input shaft (1) by the second spring bearing (17); The second rotary arm bearing (13), it is set on eccentric gearing wheel (14); Interior pitch curve wheel (11), it is set on the second rotary arm bearing (13), and with the interior engagement fit of described gear pin (8); And output disc (16), itself and output shaft (20) are connected; Described eccentric gearing wheel (14) is in transmission connection by pin (26) and outer gearing curve wheel (7), and described interior pitch curve wheel (11) is in transmission connection by driving pin (24) and output disc (16); The quantity of described gear pin (8) be less than interior pitch curve wheel (11) the number of teeth and more than the number of teeth of outer gearing curve wheel (7); A side near the first support (9) of pitch curve wheel (7) is provided with the first hog frame (6) outside, this first hog frame (6) is arranged on input shaft (1) by clutch shaft bearing (4), be provided with a plurality of boss (61) on the first hog frame (6), the corresponding a plurality of through holes (71) that are provided with of described outer gearing curve wheel (7), the boss (61) of the first hog frame (6) passes through hole (71) and is fixedly connected with eccentric gearing wheel (14), and described outer gearing curve wheel (7) does not contact with described boss (61) in movement process all the time; A side at interior pitch curve wheel (11) also is provided with the second hog frame (23), this second hog frame (23) is installed on described eccentric gearing wheel (14) by the second bearing (25), also be provided with a plurality of boss (231) on described the second hog frame (23), at the upper corresponding a plurality of through holes (111) that are provided with of interior pitch curve wheel (11), the boss (231) of the second hog frame (23) passes through hole (111) and is fixedly connected with output disc (16), and described interior pitch curve wheel (11) does not contact with described boss (231) in movement process all the time.
As preferred version of the present invention: the boss (61,231) on described the first hog frame (6), the second hog frame (23) is all three and circumferentially evenly distributes centered by the axis of input shaft.
As preferred version of the present invention: described eccentric gearing wheel (14) is provided with the convex shoulder (141) coaxial with input shaft (1), is provided with the 3rd spring bearing (15) between convex shoulder (141) and output disc (16).
As preferred version of the present invention: the quantity of described gear pin (8) is Duoed one than the number of teeth of outer gearing curve wheel (7), many one of the quantity of the gear ratio gear pin (8) of described interior pitch curve wheel (11).
As preferred version of the present invention: described output disc (16) is wholely set with output shaft (20).
As preferred version of the present invention: described eccentric wheel (101) is wholely set with input shaft (1).
As preferred version of the present invention: described driving pin (24) one ends are fixed on output disc (16), the other end is arranged on interior pitch curve wheel (11), is provided with the driving pin back-up ring (22) corresponding with driving pin (24) on the end face of output disc (16).
As preferred version of the present invention: be provided with the first Sealing shield ring (2) between the distolateral and input shaft (1) of described the first support (9).
As preferred version of the present invention: be provided with the second Sealing shield ring (19) between the distolateral and output shaft (20) of described the second support (10).
the present invention compared with prior art its beneficial effect is: the present invention is meshed with same locking pin alligator by pitch curve wheel flank profil inside and outside few teeth difference, realize the large speed ratio retarded motion, because double reduction shares same group of gear pin, the axial dimension of retarder reduces greatly than the simple size of connecting of two first stage decelerators in the past, again because outer gearing curve wheel and interior pitch curve wheel is subjected to one of force direction outside along the tangent Normal direction of gear pin and curve engagement place, one inwards, can realize inside and outside pitch curve wheel engaging force partial offset, bearing capacity and the transmission efficiency of retarder have been improved, having removed the RV Key Part of Cycloid Cam Planetary Speed Reducer from must two slices arranged off-centre that differ 180 degree, two eccentric shaft part requirements that differ 180 degree layouts on the eccentric shaft have also been removed thus from.Every grade of deceleration of retarder of the present invention is only with an eccentric wheel of being located on eccentric shaft, double reduction only with two independently single eccentric wheel just can realize retarder stress equalization problem, therefore compare with the RV retarder, reduced by a cycloid wheel on structure, also reduced by one section eccentric shaft part that must satisfy biasing 180 degree that requirement on machining accuracy is higher, this has not only reduced axial dimension, alleviated the weight of retarder, and greatly simplified eccentric shaft processing technology and manufacture cost, be easy to realize industrialization.In addition, the RV retarder is planetary reduction gear transmission and the compound double reduction of few teeth difference cycloidal-pin wheel deceleration, compare with the double reduction of two few teeth differences of the present invention, and identical reduction speed ratio, the number of teeth of retarder of the present invention is far less than the RV retarder.For example, RV40EQ retarder planetary reduction gear part is respectively 16 and 32 gear by the number of teeth and forms, and the cycloidal pin teeth deceleration part is by the cycloid wheel number of teeth 39, and the pin tooth number of teeth 40 consists of, and total reduction ratio is 81; Similar velocity ratio 80, the present invention is respectively 8 and 10, the pin number of teeth 9 with the number of teeth of interior pitch curve wheel and outer gearing curve wheel.Double reduction is used 9 of 18 of the curve wheel numbers of teeth and the pin numbers of teeth altogether, and 87 of the numbers of teeth that the RV double reduction will be used, 39 of the pin numbers of teeth.The retarder of same volume, gear pin of the present invention and curve wheel can be done very thick very thickly, and rigidity is very strong.After particularly setting up hog frame, the rigidity of its complete machine structure is further improved, namely, same gear ratios, the present invention is owing to increasing by two hog frames that link with the output movement wheel, and not only high rigidity, the number of teeth are few, large carrying, high efficiency, and greatly simplified eccentric shaft processing technology and difficulty, lowered manufacture cost, be easy to realize industrialization, be particularly suitable for the real requirement of the heavy-load robot high rigidity of retarder, small volume, large carrying, high efficiency long service.
Description of drawings
Fig. 1 is mechanism driving schematic diagram of the present invention.
Fig. 2 is the schematic diagram that interior pitch curve wheel of the present invention and outer gearing curve wheel are meshed with gear pin.
Fig. 3 is the specific embodiments of the invention schematic diagram.
Fig. 4 is that pitch curve wheel and outer gearing curve wheel are meshed with gear pin in the present invention is subjected to the line of force schematic diagram.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As Fig. 1---shown in Figure 4, outer teeth profile bag tooth retarder embodiment in a kind of rigidity of the present invention includes the first support 9 and the second support 10, and first, second support 9,10 forms a cavity volume; Be provided with on the first support and be with eccentric input shaft 1, this input shaft 1 is installed on the first support 9 by the first spring bearing 3; Be provided with output shaft 20 on the second support 10, the part that is positioned at cavity volume on output shaft 20 is output disc 16, output shaft 20 is installed on the second support 10 by the 4th spring bearing 18, be provided with first order reducing gear and second level reducing gear in cavity volume, first order reducing gear by eccentric wheel 101, be located at the first rotary arm bearing 5 on eccentric wheel 101, be sheathed on the outer gearing curve wheel 7 on the first rotary arm bearing 5 and be fixed on the first support 9 and form with the gear pin 8 of outer gearing curve wheel 7 outer gearings; Second level reducing gear is by being installed on eccentric gearing wheel 14 on input shaft 1 by the second spring bearing 17, being set in the second rotary arm bearing 13 on eccentric gearing wheel 14, being set on the second rotary arm bearing 13 and forming with the interior pitch curve wheel 11 of described gear pin 8 interior engagement fit and output disc 16, pin 26, driving pin 24; A side near the first support 9 of pitch curve wheel 7 is provided with the first hog frame 6 outside, this first hog frame 6 is arranged on input shaft 1 by clutch shaft bearing 4, be provided with a plurality of boss 61 on the first hog frame 6, described outer gearing curve wheel 7 is corresponding is provided with a plurality of through holes 71, the boss 61 of the first hog frame 6 passes through hole 71 and is fixedly connected with eccentric gearing wheel 14, and described outer gearing curve wheel 7 does not contact with described boss 61 in movement process all the time; A side at interior pitch curve wheel 11 also is provided with the second hog frame 23, this second hog frame 23 is installed on described eccentric gearing wheel 14 by the second bearing 25, also be provided with a plurality of boss 231 on described the second hog frame 23, correspondingly on interior pitch curve wheel 11 be provided with a plurality of through holes 111, the boss 231 of the second hog frame 23 passes through hole 111 and is fixedly connected with output disc 16, and described interior pitch curve wheel 11 does not contact with described boss 231 in movement process all the time.
Boss 61,231 on above-mentioned the first hog frame 6, the second hog frame 23 is all three and circumferentially evenly distributes centered by the axis of input shaft.
In diagram, eccentric gearing wheel 14 is provided with the convex shoulder 141 coaxial with input shaft 1, is provided with the 3rd spring bearing 15 between convex shoulder 141 and output disc 16.By setting up convex shoulder 141 and the 3rd spring bearing 15, can improve stability and the reliability of output disc and eccentric gearing wheel 14 operations.
The running of the embodiment of the present invention is as follows: input shaft 1 is meshed with gear pin 8 by eccentric wheel 101 process spring bearings 3 and the first rotary arm bearing 5 drive outer gearing curve wheels 7 and realizes primary speed-down; Pin 26 on outer gearing curve wheel 7 again is meshed eccentric gearing wheel 14 (eccentric gearing wheel 14 and the first hog frame 6 interlocks), the eccentric gearing wheel 14 pitch curve wheel 11 in the second rotary arm bearing 13 drives that retarded motion passes on the second spring bearing 17 and realizes double reduction with gear pin 8, driving pin 24 on interior pitch curve wheel 11 passes motion to output disc 16 and output shaft 20(output disc 16 and the second hog frame 23 interlocks on the 3rd spring bearing 15 and the 4th spring bearing 18), retarded motion is exported away.
In the present embodiment, interior pitch curve wheel, gear pin and the outer gearing curve wheel number of teeth differ respectively 1, and namely every grade of double reduction is all a poor deceleration of tooth.
In illustrated embodiment, driving pin 24 1 ends are fixed on output disc 16, and the other end is arranged on interior pitch curve wheel 11, is provided with the driving pin back-up ring 22 corresponding with driving pin 24 on the end face of output disc 16.An end of driving pin is transmitted that pin back-up ring 22 stops, the other end is stopped by the second hog frame 23 like this, thereby really driving pin 24 can not gone out from axial disengaging in running, and the two ends of pivot pin 26 are due to the gear that the 3rd spring bearing 15 and the first hog frame 6 are arranged, therefore also can not go out from axial disengaging in running.
In figure, be provided with the second Sealing shield ring 19 between the distolateral and output shaft 20 that also is provided with the first Sealing shield ring 2, the second supports 10 between the distolateral and input shaft 1 of the first support 9.
In the present embodiment, each spring bearing adopts ball bearing usually, and each rotary arm bearing adopts roller bearing usually.But selecting of each bearing is not limited to this.
In above-described embodiment, make interior pitch curve wheel 11, outer gearing curve wheel 7 elder generations and engage sleeves thereby can also add again sleeve on gear pin, coordinate thereby coordinated to make into to roll by slippage in movement process, make kinetic friction force less; Can add sleeve or consisted of by the cam pin identical with eccentric wheel on pin, driving pin, coordinating thereby coordinated to make into to roll by slippage when making transmission by sleeve, thereby make frictional force less.Input shaft also can adopt hollow type.
In a word; above-described embodiment is only that the preferred implementation to outer teeth profile bag tooth retarder in rigidity of the present invention is described; be not that design and the scope of inventing limited; under the prerequisite that does not break away from the present invention program; various external form modification and improvement that those skilled in the art make technological scheme of the present invention all should fall into the protection domain of outer teeth profile bag tooth retarder in the present invention.
Claims (9)
1. the interior outer teeth profile bag tooth retarder of rigidity, include
The first support (9);
The second support (10), itself and the first support (9) form a cavity volume;
Input shaft (1), it is installed on the first support (9) by the first spring bearing (3);
Output shaft (20), it is installed on the second support (10);
And be installed on first order reducing gear and second level reducing gear in cavity volume; It is characterized in that:
Described first order reducing gear includes:
Eccentric wheel (101), it is located on input shaft (1);
The first rotary arm bearing (5), it is set on eccentric wheel (101);
Outer gearing curve wheel (7), it is sheathed on the first rotary arm bearing (5);
And gear pin (8), its be fixed on the first support (9) upper and with outer gearing curve wheel (7) outer gearing;
Described second level reducing gear includes:
Eccentric gearing wheel (14), it is installed on input shaft (1) by the second spring bearing (17);
The second rotary arm bearing (13), it is set on eccentric gearing wheel (14);
Interior pitch curve wheel (11), it is set on the second rotary arm bearing (13), and with the interior engagement fit of described gear pin (8);
And output disc (16), itself and output shaft (20) are connected;
Described eccentric gearing wheel (14) is in transmission connection by pin (26) and outer gearing curve wheel (7), and described interior pitch curve wheel (11) is in transmission connection by driving pin (24) and output disc (16);
The quantity of described gear pin (8) be less than interior pitch curve wheel (11) the number of teeth and more than the number of teeth of outer gearing curve wheel (7);
A side near the first support (9) of pitch curve wheel (7) is provided with the first hog frame (6) outside, this first hog frame (6) is arranged on input shaft (1) by clutch shaft bearing (4), be provided with a plurality of boss (61) on the first hog frame (6), the corresponding a plurality of through holes (71) that are provided with of described outer gearing curve wheel (7), the boss (61) of the first hog frame (6) passes through hole (71) and is fixedly connected with eccentric gearing wheel (14), and described outer gearing curve wheel (7) does not contact with described boss (61) in movement process all the time; A side at interior pitch curve wheel (11) also is provided with the second hog frame (23), this second hog frame (23) is installed on described eccentric gearing wheel (14) by the second bearing (25), also be provided with a plurality of boss (231) on described the second hog frame (23), at the upper corresponding a plurality of through holes (111) that are provided with of interior pitch curve wheel (11), the boss (231) of the second hog frame (23) passes through hole (111) and is fixedly connected with output disc (16), and described interior pitch curve wheel (11) does not contact with described boss (231) in movement process all the time.
2. outer teeth profile bag tooth retarder in rigidity according to claim 1 is characterized in that: the boss (61,231) on described the first hog frame (6), the second hog frame (23) is all three and circumferentially evenly distribute centered by the axis of input shaft input shaft (1).
3. outer teeth profile bag tooth retarder in rigidity according to claim 1, it is characterized in that: described eccentric gearing wheel (14) is provided with the convex shoulder (141) coaxial with input shaft (1), is provided with the 3rd spring bearing (15) between convex shoulder (141) and output disc (16).
4. outer teeth profile bag tooth retarder in rigidity according to claim 1, it is characterized in that: the quantity of described gear pin (8) is Duoed one than the number of teeth of outer gearing curve wheel (7), many one of the quantity of the gear ratio gear pin (8) of described interior pitch curve wheel (11).
5. outer teeth profile bag tooth retarder in rigidity according to claim 1, it is characterized in that: described output disc (16) is wholely set with output shaft (20).
6. interior outer teeth profile bag tooth retarder according to claim 1 is characterized in that: described eccentric wheel (101) is wholely set with input shaft (1).
7. outer teeth profile bag tooth retarder in rigidity according to claim 1, it is characterized in that: described driving pin (12) one ends are fixed on output disc (16), the other end is arranged on interior pitch curve wheel (11), is provided with the driving pin back-up ring (22) corresponding with driving pin (24) on the end face of output disc (16).
8. outer teeth profile bag tooth retarder in rigidity according to claim 1, is characterized in that: be provided with the first Sealing shield ring (2) between the distolateral and input shaft (1) of described the first support (9).
9. outer teeth profile bag tooth retarder in rigidity according to claim 1, is characterized in that: be provided with the second Sealing shield ring (19) between the distolateral and output shaft (20) of described the second support (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066037.XA CN103122973B (en) | 2013-03-02 | 2013-03-02 | Rigid inside and outside tooth-profile-wrapped tooth reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310066037.XA CN103122973B (en) | 2013-03-02 | 2013-03-02 | Rigid inside and outside tooth-profile-wrapped tooth reducer |
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| Publication Number | Publication Date |
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| CN103122973A true CN103122973A (en) | 2013-05-29 |
| CN103122973B CN103122973B (en) | 2015-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014134765A1 (en) * | 2013-03-02 | 2014-09-12 | 浙江恒丰泰减速机制造有限公司 | Rigid internally and peripherally meshed speed reducer |
| CN104888976A (en) * | 2015-06-20 | 2015-09-09 | 罗名杨 | Differential speed change mechanism applied to centrifugal machine |
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| CN87206444U (en) * | 1987-04-14 | 1988-01-27 | 国营陕西前进机械厂 | Movable teeth resonance speed retardation device |
| RU2386065C1 (en) * | 2008-12-08 | 2010-04-10 | Валерий Александрович Мухин | Planetary reducer (versions) |
| CN101806352A (en) * | 2010-05-09 | 2010-08-18 | 浙江恒丰泰减速机制造有限公司 | Multifunctional positioning and driving mechanism |
| WO2011091770A1 (en) * | 2010-02-01 | 2011-08-04 | 重庆大学 | Filtering gear reducer |
| CN102242795A (en) * | 2011-07-21 | 2011-11-16 | 浙江恒丰泰减速机制造有限公司 | Precision cycloid decelerator |
| CN203130926U (en) * | 2013-03-02 | 2013-08-14 | 浙江恒丰泰减速机制造有限公司 | Rigid speed reducer with internal tooth profile and external tooth profile wrapping teeth |
-
2013
- 2013-03-02 CN CN201310066037.XA patent/CN103122973B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206444U (en) * | 1987-04-14 | 1988-01-27 | 国营陕西前进机械厂 | Movable teeth resonance speed retardation device |
| RU2386065C1 (en) * | 2008-12-08 | 2010-04-10 | Валерий Александрович Мухин | Planetary reducer (versions) |
| WO2011091770A1 (en) * | 2010-02-01 | 2011-08-04 | 重庆大学 | Filtering gear reducer |
| CN101806352A (en) * | 2010-05-09 | 2010-08-18 | 浙江恒丰泰减速机制造有限公司 | Multifunctional positioning and driving mechanism |
| CN102242795A (en) * | 2011-07-21 | 2011-11-16 | 浙江恒丰泰减速机制造有限公司 | Precision cycloid decelerator |
| CN203130926U (en) * | 2013-03-02 | 2013-08-14 | 浙江恒丰泰减速机制造有限公司 | Rigid speed reducer with internal tooth profile and external tooth profile wrapping teeth |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014134765A1 (en) * | 2013-03-02 | 2014-09-12 | 浙江恒丰泰减速机制造有限公司 | Rigid internally and peripherally meshed speed reducer |
| US9206881B2 (en) | 2013-03-02 | 2015-12-08 | Zhejiang Hengfengtai Reducer Mfg.Co., Ltd | Rigid speed reducer with internal and external tooth profile tooth-enveloping |
| CN104888976A (en) * | 2015-06-20 | 2015-09-09 | 罗名杨 | Differential speed change mechanism applied to centrifugal machine |
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| Publication number | Publication date |
|---|---|
| CN103122973B (en) | 2015-06-03 |
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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: 325000 Wenzhou Province Economic and Technological Development Zone, Binhai District, Binhai Road, No., No. ten, No. 1489 Patentee before: Zhejiang Hengfengtai Reducer MFG Co., Ltd |
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Denomination of invention: Rigid inside and outside tooth-profile-wrapped tooth reducer Effective date of registration: 20200622 Granted publication date: 20150603 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: HENGFENGTAI PRECISION MACHINERY Co.,Ltd. Registration number: Y2020330000377 |
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Date of cancellation: 20220308 Granted publication date: 20150603 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: HENGFENGTAI PRECISION MACHINERY CO.,LTD. Registration number: Y2020330000377 |
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Denomination of invention: Rigid internal and external tooth profile wrap gear reducer Effective date of registration: 20220314 Granted publication date: 20150603 Pledgee: China Minsheng Banking Corp Wenzhou branch Pledgor: HENGFENGTAI PRECISION MACHINERY CO.,LTD. Registration number: Y2022980002601 |