CN104959242A - Differential speed change mechanism for centrifugal machine - Google Patents
Differential speed change mechanism for centrifugal machine Download PDFInfo
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- CN104959242A CN104959242A CN201510375061.0A CN201510375061A CN104959242A CN 104959242 A CN104959242 A CN 104959242A CN 201510375061 A CN201510375061 A CN 201510375061A CN 104959242 A CN104959242 A CN 104959242A
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- speed changer
- external gear
- differential
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Abstract
The invention relates to a differential speed change mechanism for a centrifugal machine. The differential speed change mechanism for the centrifugal machine comprises an input shaft, an output shaft, a first-stage one-tooth-difference speed changer composed of a first external gear and a first internal gear ring and a second-stage one-tooth-difference speed changer composed of a second external gear and a second external gear ring. The number of teeth of the fist internal gear ring is one more than that of the first external gear. The first external gear is sleeved on the input shaft and is meshed with the first internal gear ring. The number of the second internal gear ring is one more than that of the second external gear. The second external gear is sleeved on the output shaft and is meshed with the second internal gear ring. The first internal gear ring is fixedly connected with the second internal gear ring through a pin to form a linked internal gear ring, so that the first-stage one-tooth-difference speed changer and the second-stage one-tooth-difference speed changer form a mutual-difference relation. The differential speed change mechanism for the centrifugal machine has the advantages of being ingenious in design, compact in structure and comparatively small in size; a stable speed difference can be provided, and the speed-difference ratio can 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 illustrates:
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 |
|---|---|---|---|
| CN201510375061.0A CN104959242A (en) | 2015-06-29 | 2015-06-29 | Differential speed change mechanism for centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375061.0A CN104959242A (en) | 2015-06-29 | 2015-06-29 | Differential speed change mechanism for centrifugal machine |
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| CN104959242A true CN104959242A (en) | 2015-10-07 |
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| CN201510375061.0A Pending CN104959242A (en) | 2015-06-29 | 2015-06-29 | Differential speed change mechanism for centrifugal machine |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069556A (en) * | 1991-08-19 | 1993-03-03 | 曲燕矶 | By zero adjustable mechanical continuously-variable transmission |
| CN2291748Y (en) * | 1997-05-12 | 1998-09-16 | 卢诚 | Pulse converting variable frequency buncher |
| CN1941609A (en) * | 2005-09-30 | 2007-04-04 | 许正望 | High-performance cheap AC speed-adjusting system |
| JP2014131907A (en) * | 2009-03-24 | 2014-07-17 | Honda Motor Co Ltd | Hybrid vehicle |
| CN104047998A (en) * | 2013-03-12 | 2014-09-17 | 李建利 | Suspension wheel speed 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 |
| CN104888976A (en) * | 2015-06-20 | 2015-09-09 | 罗名杨 | Differential speed change mechanism applied to centrifugal machine |
-
2015
- 2015-06-29 CN CN201510375061.0A patent/CN104959242A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069556A (en) * | 1991-08-19 | 1993-03-03 | 曲燕矶 | By zero adjustable mechanical continuously-variable transmission |
| CN2291748Y (en) * | 1997-05-12 | 1998-09-16 | 卢诚 | Pulse converting variable frequency buncher |
| CN1941609A (en) * | 2005-09-30 | 2007-04-04 | 许正望 | High-performance cheap AC speed-adjusting system |
| JP2014131907A (en) * | 2009-03-24 | 2014-07-17 | Honda Motor Co Ltd | Hybrid vehicle |
| CN104047998A (en) * | 2013-03-12 | 2014-09-17 | 李建利 | Suspension wheel speed 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 |
| CN104888976A (en) * | 2015-06-20 | 2015-09-09 | 罗名杨 | Differential speed change mechanism applied to centrifugal machine |
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Application publication date: 20151007 |