CN104888976A - Differential speed change mechanism applied to centrifugal machine - Google Patents
Differential speed change mechanism applied to centrifugal machine Download PDFInfo
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- CN104888976A CN104888976A CN201510343709.6A CN201510343709A CN104888976A CN 104888976 A CN104888976 A CN 104888976A CN 201510343709 A CN201510343709 A CN 201510343709A CN 104888976 A CN104888976 A CN 104888976A
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- gear
- speed changer
- tooth difference
- differential
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Abstract
The invention discloses a differential speed change mechanism applied to centrifugal machine. The differential speed change mechanism comprises an input shaft and an output shaft, and also comprises a first stage first tooth difference transmission composed of a first outer gear and a first inner gear ring and a second stage first tooth difference transmission composed of a second outer gear and a second inner gear ring, wherein the tooth number of the first inner gear ring is one more than that of the first outer gear, the first outer gear tightly sleeves the input shaft and is engaged with the first inner gear ring, the tooth number of the second inner gear ring is one more than that of the second outer gear, the second outer gear tightly sleeves the output shaft and is engaged with the second inner gear ring, the first inner gear ring is fixedly connected with the second inner gear ring by a dowel to form a linkage inner gear ring, and thereby a mutual difference relationship is formed between the first stage first tooth difference transmission and the second stage first tooth difference transmission. The differential speed change mechanism applied to the centrifugal machine provided by the invention has the advantages of being igneous in design, compact in structure, small in volume, capable of providing stable speed difference, and also capable of allowing the speed difference ratio to be smaller.
Description
Technical field
The present invention relates to a kind of differential gear, is specifically a kind of for the differential gear in centrifuge.
Background technology
Centrifuge is a kind of solid-liquid separating equipment utilizing centrifugal force the solid particle in suspension and liquid to be separated, it is mainly used in the industries such as chemical industry, ore dressing, oil, pharmacy, food, and foul smelling smell sewage disposal etc. needs the occasion to carrying out sedimentation separation containing solid suspension.The operation principle of centrifuge is, suspension enters rotary drum after feed pipe and discharging opening, under the centrifugal action that main frame High Rotation Speed produces, the solid phase particles that proportion is larger is deposited on drum inner wall, the solid phase particles be deposited on drum inner wall is scraped by helical blade and releases slag-drip opening by screw feeder continuously that do relative motion with rotary drum, and the clear liquid after separation flows out rotary drum through overfall.At present, screw feeder in centrifuge and the difference of the speed between rotary drum are generally realized by differential mechanism, as satellite differential etc., this just needs two motors to control respective rotating speed respectively through two frequency converters, the speed reached between the two is poor, and speed difference stable by testing the speed, adjusting, the means such as compensation reach, relatively complicated.Also simple speed changer is had, but speed difference is unsatisfactory, the speed changer can having made 1/125 is at present reported according to some, the speed that is can obtain 24 revs/min under the rotating speed of 3000 revs/min is poor, we know that the water capacity of the less solid material of speed difference is fewer, some centrifuge even needs the speed lower than 7 revs/min poor, such speed changer is inconvenient in manufacture, its reason is, it is poor in order to less speed can be reached, the quantity of the speed changer middle gear number of teeth just requires larger, and under certain module requires, the outside diameter of gear will be done very large, so not only can increase the volume of speed changer and centrifuge, and bring certain trouble to the manufacturing of centrifuge.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of design ingenious, compact conformation, small volume, and stable speed not only can be provided poor, and speed differs from ratio and can reach less of the differential gear in centrifuge.
Technical solution of the present invention is, there is provided a kind of have following structure for the differential gear in centrifuge, it comprises power shaft and output shaft, wherein, this differential gear also comprises the first order one tooth difference speed changer and the second level one tooth difference speed changer, the first order one tooth difference speed changer is connected with power shaft, and the second level one tooth difference speed changer is connected with output shaft, and the first order one tooth difference speed changer and the second level one tooth difference speed changer are connected to form mutual deviation relation.
After adopting above structure, compared with prior art, the differential gear that the present invention is used in centrifuge has the following advantages: because the present invention not only employs two to a tooth difference speed changer, but also this two couple one tooth difference speed changer is connected to form a kind of mutual deviation relation, therefore, the present invention can not by the impact of machine burden, differential is very more constant than not only, ensure that the simplification of Centrifugal Machine Control part, but also us can be made to accomplish any differential ratio, meanwhile, under the requirement of certain modulus, in the present invention, that all it goes without doing is very large for the external diameter of four harmonic gears, thus make the present invention have compact conformation, the feature of small volume.
Of the present invention for the differential gear in centrifuge, wherein, the first order one tooth difference speed changer comprises the first external gear and the first ring gear, first many one of the ring gear gear ratio first external gear number of teeth, first external gear to be locked on power shaft and meshing with the first ring gear, and the first ring gear is connected with the second level one tooth difference speed changer.
Of the present invention for the differential gear in centrifuge, wherein, the number of teeth of the first external gear is 24, and the number of teeth of the first ring gear is 25.
Of the present invention for the differential gear in centrifuge, wherein, the second level one tooth difference speed changer comprises the second external gear and the second ring gear, second many one of the ring gear gear ratio second external gear number of teeth, second external gear to be locked on output shaft and meshing with the second ring gear, and the second ring gear is connected with the first order one tooth difference speed changer.
Of the present invention for the differential gear in centrifuge, wherein, the number of teeth of the second external gear is 22, and the number of teeth of described second ring gear is 23.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the differential gear in centrifuge.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the differential gear that the present invention is used in centrifuge is described further:
The mentality of designing that the present invention is used for the differential gear in centrifuge is as follows: if we want the differential transmission doing 1/200, by a tooth difference principle, a gear does 200 teeth, a gear does 199 teeth, every like this 200 turns of mutual deviations 1 turn, suppose under certain modulus requires, it is very large that the outside diameter of gear will be done, if but we do a pair 1/40 speed changer mutual deviations again of a pair 1/50, i.e. 1/40-1/50=1/200, so namely, ensure that certain modulus requirement, that the external diameter of gear can not be done again is very large, and speed ratio also reaches requirement.
By above-mentioned thinking, the present invention just can accomplish the differential transmission of any differential ratio.
As shown in Figure 1, in this embodiment, the present invention's differential gear be used in centrifuge comprises power shaft 1, output shaft 2, the first order one tooth difference speed changer and the second level one tooth difference speed changer.The first order one tooth difference speed changer comprises first external gear 3 and many one of first ring gear 4, first ring gear 4 gear ratio first external gear 3 number of teeth, and the first external gear 3 to be locked on power shaft 1 and meshing with the first ring gear 4.The second level one tooth difference speed changer comprises second external gear 5 and many one of second ring gear 6, second ring gear 6 gear ratio second external gear 5 number of teeth, and the second external gear 5 is locked and connects and meshing with the second ring gear 6 at output shaft 2.First ring gear 4 is fixedly connected to form the ring gear that links by pin and the second ring gear 6, thus makes the first order one tooth difference speed changer and the second level one tooth difference speed changer form a kind of mutual deviation relation.
In this embodiment, the number of teeth of the first external gear 3 in the present invention is 24, and the number of teeth of the first ring gear 4 is 25, and the number of teeth of the second external gear 5 is 22, and the number of teeth of the second ring gear 6 is 23.After adopting the above number of teeth, differential between the power shaft that we obtain and output shaft is than being 1/23-1/25=0.00345, differential ratio reaches less than 0.4%, namely do the differential transmission of 1/288, under the rotating speed of 3000 revs/min, 3000 × 0.00345=10.4, like this we just to obtain the speed of about 10 revs/min poor, this speed difference is that the inaccessiable speed of current conventional differential and speed changer is poor.In the present invention, whole differential gear design is ingenious, compact conformation, and small volume, outputting torsion is large, fullys meet requirement.
The operation principle of the differential gear that the present invention is used in centrifuge is: when driven by motor power shaft and screw feeder rotate, the first ring gear 4 is driven to make rotating Vortex by the first external gear 3, because the first ring gear 4 and the second ring gear 6 link, therefore the second ring gear 6 will drive the second external gear 5 to rotate, and finally output shaft and rotary drum can be driven also to do equidirectional running by the second external gear 5.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (5)
1. one kind for the differential gear in centrifuge, it comprises power shaft (1) and output shaft (2), it is characterized in that: this differential gear also comprises the first order one tooth difference speed changer and the second level one tooth difference speed changer, the described first order one tooth difference speed changer is connected with power shaft (1), the described second level one tooth difference speed changer is connected with output shaft (2), and the described first order one tooth difference speed changer and the second level one tooth difference speed changer are connected to form mutual deviation relation.
2. according to claim 1 for the differential gear in centrifuge, it is characterized in that: the described first order one tooth difference speed changer comprises the first external gear (3) and the first ring gear (4), described many one of first ring gear (4) gear ratio first external gear (3) number of teeth, described first external gear (3) is locked upper and meshing with the first ring gear (4) at power shaft (1), and described first ring gear (4) is connected with the second level one tooth difference speed changer.
3. according to claim 2 for the differential gear in centrifuge, it is characterized in that: the number of teeth of described first external gear (3) is 24, the number of teeth of described first ring gear (4) is 25.
4. according to claim 1 for the differential gear in centrifuge, it is characterized in that: the described second level one tooth difference speed changer comprises the second external gear (5) and the second ring gear (6), described many one of second ring gear (6) gear ratio second external gear (5) number of teeth, described second external gear (5) is locked upper and meshing with the second ring gear (6) at output shaft (2), and described second ring gear (6) is connected with the first order one tooth difference speed changer.
5. according to claim 4 for the differential gear in centrifuge, it is characterized in that: the number of teeth of described second external gear (5) is 22, the number of teeth of described second ring gear (6) is 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510343709.6A CN104888976A (en) | 2015-06-20 | 2015-06-20 | Differential speed change mechanism applied to centrifugal machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510343709.6A CN104888976A (en) | 2015-06-20 | 2015-06-20 | Differential speed change mechanism applied to centrifugal machine |
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| CN104888976A true CN104888976A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510343709.6A Pending CN104888976A (en) | 2015-06-20 | 2015-06-20 | Differential speed change mechanism applied to centrifugal machine |
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| CN (1) | CN104888976A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959242A (en) * | 2015-06-29 | 2015-10-07 | 宁波榕大环保装备有限公司 | Differential speed change mechanism for centrifugal machine |
| CN112264201A (en) * | 2020-12-22 | 2021-01-26 | 广州正广生物科技有限公司 | A high-efficient centrifugal separator for fluidized drying for health food manufacturing |
Citations (7)
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|---|---|---|---|---|
| CN2195656Y (en) * | 1994-09-02 | 1995-04-26 | 郭俊福 | Toothed planet-gear speed reducer |
| CN2926667Y (en) * | 2006-07-04 | 2007-07-25 | 李涛 | Planetary reducer and bow fastened nut dismounting machine therewith |
| CN103122973A (en) * | 2013-03-02 | 2013-05-29 | 浙江恒丰泰减速机制造有限公司 | Rigid inside and outside tooth-profile-wrapped tooth reducer |
| US20130178322A1 (en) * | 2012-01-11 | 2013-07-11 | Jtekt Corporation | Speed reduction mechanism, and motor torque transmission device including the same |
| CN104121334A (en) * | 2014-07-14 | 2014-10-29 | 天津职业技术师范大学 | Coaxial single-input bidirectional-output high-speed-ratio cycloid speed reducer |
| CN204186886U (en) * | 2014-09-29 | 2015-03-04 | 姜有福 | Involute one planetary gear speed reducer of maneuvering milling machine |
| CN104888974A (en) * | 2015-06-19 | 2015-09-09 | 罗名杨 | Vertical continuous discharging sedimentation centrifuge |
-
2015
- 2015-06-20 CN CN201510343709.6A patent/CN104888976A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195656Y (en) * | 1994-09-02 | 1995-04-26 | 郭俊福 | Toothed planet-gear speed reducer |
| CN2926667Y (en) * | 2006-07-04 | 2007-07-25 | 李涛 | Planetary reducer and bow fastened nut dismounting machine therewith |
| US20130178322A1 (en) * | 2012-01-11 | 2013-07-11 | Jtekt Corporation | Speed reduction mechanism, and motor torque transmission device including the same |
| CN103122973A (en) * | 2013-03-02 | 2013-05-29 | 浙江恒丰泰减速机制造有限公司 | Rigid inside and outside tooth-profile-wrapped tooth reducer |
| CN104121334A (en) * | 2014-07-14 | 2014-10-29 | 天津职业技术师范大学 | Coaxial single-input bidirectional-output high-speed-ratio cycloid speed reducer |
| CN204186886U (en) * | 2014-09-29 | 2015-03-04 | 姜有福 | Involute one planetary gear speed reducer of maneuvering milling machine |
| CN104888974A (en) * | 2015-06-19 | 2015-09-09 | 罗名杨 | Vertical continuous discharging sedimentation centrifuge |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959242A (en) * | 2015-06-29 | 2015-10-07 | 宁波榕大环保装备有限公司 | Differential speed change mechanism for centrifugal machine |
| CN112264201A (en) * | 2020-12-22 | 2021-01-26 | 广州正广生物科技有限公司 | A high-efficient centrifugal separator for fluidized drying for health food manufacturing |
| CN112264201B (en) * | 2020-12-22 | 2021-03-19 | 广州正广生物科技有限公司 | A high-efficient centrifugal separator for fluidized drying for health food manufacturing |
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Effective date of registration: 20171205 Address after: Chang in Shipu town of Xiangshan County in Zhejiang province 315732 city of Ningbo North Gate Yuzhu mountain Applicant after: Ningbo Rongda Environmental Protection Equipment Co., Ltd. Address before: Daqing road Hunan city Hengyang District 421001 Jianfu Yanfeng district a four unit 612 room Applicant before: Luo Mingyang |
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Application publication date: 20150909 |