CN102886314A - Planet differential structure used for horizontal screw decanter centrifuge - Google Patents
Planet differential structure used for horizontal screw decanter centrifuge Download PDFInfo
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- CN102886314A CN102886314A CN2012103458008A CN201210345800A CN102886314A CN 102886314 A CN102886314 A CN 102886314A CN 2012103458008 A CN2012103458008 A CN 2012103458008A CN 201210345800 A CN201210345800 A CN 201210345800A CN 102886314 A CN102886314 A CN 102886314A
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Abstract
The invention discloses a planet differential structure used for a horizontal screw decanter centrifuge. The planet differential structure comprises an input shaft and is characterized in that the input shaft penetrates out from a shell of a second inner gear ring; a first stage sun gear is installed at one end of the input shaft inside the shell of the second inner gear ring; the first stage sun gear is externally meshed with a first stage planet gear; the first stage planet gear is fixedly installed on a bracket inside the shell of the second inner gear ring; the first stage planet gear is internally meshed with a first inner gear ring; a second stage sun gear is installed on the bracket of a shell of the first inner gear ring; the second stage sun gear is externally meshed with a second stage planet gear; the second stage planet gear is internally meshed with the second stage inner gear ring; and the second stage planet gear penetrates outside the shell of the second inner gear ring. With the adoption of the planet differential structure, a spiral and a rotary drum are kept in reversed rotation when the horizontal screw decanter centrifuge moves in a low speed, so that liquid and solid articles can be separated from a liquid article outlet and a solid article outlet respectively during the low-speed rotation process of the horizontal screw decanter centrifuge, the separation efficiency is increased, and the energy resources are saved.
Description
Technical field
The present invention relates to centrifuge, specifically relate to a kind of planetary differential structure for horizontal screw centrifuge.
Background technology
Centrifuge is to utilize the centrifugation principle suspension material liquid to be carried out the device of Separation of Solid and Liquid.Centrifuge has one to be called rotary drum around the cylinder of axis High Rotation Speed own, usually by Motor Drive, after suspension adds rotary drum, is driven and the synchronized rotation of rotary drum rapidly, and each component is separated under centrifugal action, and discharges respectively.
Horizontal screw centrifuge is energy-saving and cost-reducing owing to having, floor space is little, the automaticity high, is used at increasing industrial chemical industry and field of Environment Protection.Differential mechanism is divided into two kinds of satellite differential and cycloidal-pin wheel differential mechanisms as the core component of horizontal screw centrifuge.Wherein the involute planet gear differential mechanism is because the horizontal screw centrifuge that bearing capacity height, compact conformation, volume are little, the differential scope is large, the transmission efficiency advantages of higher has been widely used in large, medium and small various moment of torsion and differential operating mode, is particularly useful for high score from factor, large poor rotating speed, the large horizontal screw centrifuge of pusher moment of torsion.
As shown in Figure 1, normally used satellite differential is comprised of planetary gear mechanisms for two stages on the horizontal screw centrifuge, the shell of ring gear a1 and a2 and bowl A fix, and with the rotary drum synchronous rotary, differential mechanism by secondary belt pulley b to its human transporting axle transmission rotating speed, the differential mechanism output shaft is by the luer engages with in splined shaft and the rotary drum A, the differential mechanism input connects one-level sun gear R1 and ring gear a1 forms I level speed change, drive secondary solar gear R2 and be coupled to second level epicyclic transmission mechanism by planetary wheel carrier (tie-rod) X1, the output of further slowing down.
In the horizontal screw centrifuge work engineering, must there be certain poor rotating speed in spiral and rotary drum, the heavy solid formation of relative liquid phase thing that is deposited in drum inner wall through centrifugation can be pushed away out rotary drum, and then outside the eliminating machine.In general, when the rotating speed of horizontal screw centrifuge is very fast (normally the bowl frequency is more than 10hz), the effect that the liquid phase thing separates with solid formation is better, liquid phase thing and solid formation are separated from liquid phase thing and solid formation outlet respectively, but, when the bowl frequency is lower than 10hz, because centrifugal force has been not enough to overcome gravity, originally a large amount of solid-phase layer and the liquid phase layer that were close to drum inner wall can fall within the extremely short time, easily cause solid formation to enter into the liquid phase thing on the one hand, and then the generation clear liquid pollutes, the problems such as pipeline sedimentation obstruction, economic loss.On the other hand, cause the large end sealing load of horizontal screw centrifuge to increase, make sometimes large end shield shell sealing place the water spray phenomenon occur.
Summary of the invention
The objective of the invention is to make for existing satellite differential structure spiral and the rotary drum rotating in same direction of horizontal screw centrifuge, cause that solid formation enters into the liquid phase thing in horizontal screw centrifuge slowly runs process, the defective that clear liquid pollutes, the pipeline sedimentation is stopped up occurs, a kind of novel planetary gear differential mechanism structure is provided, make spiral and the rotary drum backward rotation of horizontal screw centrifuge, thereby slowly run in process liquid phase thing and solid formation of horizontal screw centrifuge also can be separated from liquid phase thing and solid formation outlet respectively.
Technical scheme
In order to realize that above-mentioned technical purpose the present invention designs a kind of planetary differential structure for horizontal screw centrifuge, it comprises power shaft, it is characterized in that: described power shaft passes from the second ring gear shell, power shaft is arranged on the end of the second ring gear shell the one-level sun gear is housed, one-level sun gear and the external toothing of one-level planetary gear, one-level planetary gear center is installed on the second ring gear shell inner support, engagement in one-level planetary gear and the first ring gear, on the first ring gear outer casing stand secondary solar gear is housed, secondary solar gear and the external toothing of secondary planet wheel, the secondary planet wheel stretches out the second ring gear shell with the interior engagement of the second ring gear, secondary planet wheel output shaft.
Described one-level planetary gear center keyway is installed on the second ring gear shell inner support.
Described secondary planet wheel center keyway is installed on the first ring gear shell inner support.
Described one-level planetary gear quantity is 3, becomes even circumferential to distribute centered by one-level sun gear central shaft.
Described secondary planet wheel quantity is 3, becomes even circumferential to distribute centered by the secondary solar gear central shaft.Beneficial effect
The invention provides a kind of novel planetary gear differential mechanism structure, make horizontal screw centrifuge when high-speed motion and all keep spiral and rotary drum backward rotation during low-speed motion, thereby slowly run in process liquid phase thing and solid formation of horizontal screw centrifuge also can be separated respectively from liquid phase thing and solid formation outlet, separative efficiency improves, energy savings.
Description of drawings
Accompanying drawing 1 is traditional horizontal screw centrifuger differential mechanism working state structure schematic diagram.
Accompanying drawing 2 is differential mechanism working state structure schematic diagrames provided by the invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
The first embodiment of the present invention as shown in Figure 2, a kind of planetary differential structure for horizontal screw centrifuge, it comprises power shaft 1, it is characterized in that: described power shaft 1 passes from the second ring gear 2 shells, power shaft 1 is arranged on the end of the second ring gear 2 shells one-level sun gear 3 is housed, one-level sun gear 3 and 4 external toothings of one-level planetary gear, one-level planetary gear 4 centers are installed on the second ring gear 2 shell inner supports 201, one-level planetary gear 4 and the 5 interior engagements of the first ring gear, on the first ring gear 5 outer casing stands 501 secondary solar gear 6 is housed, secondary solar gear 6 is taken turns 7 external toothings with secondary planet, the 2 interior engagements of secondary planet wheel the 7 and second ring gear, secondary planet is taken turns 6 output shafts and is stretched out the second ring gear 2 shells.
Described one-level planetary gear 4 center keyways are installed on the second ring gear 2 shell inner supports 201.
Described secondary planet is taken turns 7 center keyways and is installed on the first ring gear 5 shell inner supports 501.
The second embodiment of the present invention, described one-level planetary gear 4 quantity are preferably 3, become even circumferential to distribute centered by one-level sun gear 3 central shafts.
It is best 3 that described secondary planet is taken turns 6 quantity, becomes even circumferential to distribute centered by secondary solar gear 6 central shafts.
The power shaft input power drives the one-level planetary gear transmission mechanism and rotates, change rotation direction output backward rotation through the secondary planet wheel drive mechanism, the power shaft of the differential mechanism that provides among the present invention is opposite with the output shaft rotation direction, therefore at same rotary drum rotating speed, equally under the situation with wheels, the present invention has not only solved and has caused the clear phase thing of rotary drum and solid formation to mix easily when common satellite differential slowly runs, liquid outlet stops up drawback easily, and energy efficient is more than 30% simultaneously.
Claims (5)
1. planetary differential structure that is used for horizontal screw centrifuge, it comprises power shaft (1), it is characterized in that: described power shaft (1) passes from the second ring gear (2) shell, power shaft (1) is arranged on the end of the second ring gear (2) shell one-level sun gear (3) is housed, one-level sun gear (3) and one-level planetary gear (4) external toothing, one-level planetary gear (4) center is installed on the second ring gear (2) shell inner support (201), one-level planetary gear (4) and the interior engagement of the first ring gear (5), secondary solar gear (6) is housed on the first ring gear (5) outer casing stand (501), secondary solar gear (6) and (7) external toothing of secondary planet wheel, secondary planet wheel (7) stretches out the second ring gear (2) shell with the interior engagement of the second ring gear (2), secondary planet wheel (6) output shaft.
2. a kind of planetary differential structure for horizontal screw centrifuge as claimed in claim 1, it is characterized in that: described one-level planetary gear (4) center keyway is installed on the second ring gear (2) shell inner support (201).
3. a kind of planetary differential structure for horizontal screw centrifuge as claimed in claim 1 is characterized in that: described secondary planet wheel (7) center keyway is installed on the first ring gear (5) shell inner support (501).
4. a kind of planetary differential structure for horizontal screw centrifuge as claimed in claim 1, it is characterized in that: described one-level planetary gear (4) quantity is 3, becomes even circumferential to distribute centered by one-level sun gear (3) central shaft.
5. a kind of planetary differential structure for horizontal screw centrifuge as claimed in claim 1 is characterized in that: described secondary planet wheel (6) quantity is 3, becomes even circumferential to distribute centered by secondary solar gear (6) central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103458008A CN102886314A (en) | 2012-09-17 | 2012-09-17 | Planet differential structure used for horizontal screw decanter centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103458008A CN102886314A (en) | 2012-09-17 | 2012-09-17 | Planet differential structure used for horizontal screw decanter centrifuge |
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| Publication Number | Publication Date |
|---|---|
| CN102886314A true CN102886314A (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103458008A Pending CN102886314A (en) | 2012-09-17 | 2012-09-17 | Planet differential structure used for horizontal screw decanter centrifuge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111377A (en) * | 2013-01-31 | 2013-05-22 | 浙江三联环保机械设备有限公司 | Differential mechanism of spiral discharge centrifugal machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3017158A1 (en) * | 1980-05-05 | 1981-11-12 | Helmut Dr.-Ing. 7990 Friedrichshafen Gaggermeier | Motor driven spiral centrifuge - has brake and clutch assembly controlling speed difference of drum and worm |
| CN2088622U (en) * | 1991-01-14 | 1991-11-13 | 司马永根 | Multi-function stepless speed-adjusting differential mechanism for horizontal screw centrifuge |
| CN2263234Y (en) * | 1996-04-01 | 1997-09-24 | 宁波东海分离机械制造厂 | Stepless speed regulating differential mechanism |
| CN2326342Y (en) * | 1998-05-07 | 1999-06-30 | 甘大才 | Differential gear of centrifugal machine |
| CN2526593Y (en) * | 2001-09-19 | 2002-12-18 | 张宪英 | Differential mechanism |
| CN101504065A (en) * | 2008-02-05 | 2009-08-12 | 洪涛 | Differential gear with limited differential ratio |
| CN202151598U (en) * | 2011-06-14 | 2012-02-29 | 杭州三力机械有限公司 | Horizontal spiral centrifugal machine with petroleum type differential |
| CN202215701U (en) * | 2011-08-31 | 2012-05-09 | 山西恩必讴重工有限公司 | Differential with large torque, large speed ratio and high rotating speed |
-
2012
- 2012-09-17 CN CN2012103458008A patent/CN102886314A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3017158A1 (en) * | 1980-05-05 | 1981-11-12 | Helmut Dr.-Ing. 7990 Friedrichshafen Gaggermeier | Motor driven spiral centrifuge - has brake and clutch assembly controlling speed difference of drum and worm |
| CN2088622U (en) * | 1991-01-14 | 1991-11-13 | 司马永根 | Multi-function stepless speed-adjusting differential mechanism for horizontal screw centrifuge |
| CN2263234Y (en) * | 1996-04-01 | 1997-09-24 | 宁波东海分离机械制造厂 | Stepless speed regulating differential mechanism |
| CN2326342Y (en) * | 1998-05-07 | 1999-06-30 | 甘大才 | Differential gear of centrifugal machine |
| CN2526593Y (en) * | 2001-09-19 | 2002-12-18 | 张宪英 | Differential mechanism |
| CN101504065A (en) * | 2008-02-05 | 2009-08-12 | 洪涛 | Differential gear with limited differential ratio |
| CN202151598U (en) * | 2011-06-14 | 2012-02-29 | 杭州三力机械有限公司 | Horizontal spiral centrifugal machine with petroleum type differential |
| CN202215701U (en) * | 2011-08-31 | 2012-05-09 | 山西恩必讴重工有限公司 | Differential with large torque, large speed ratio and high rotating speed |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111377A (en) * | 2013-01-31 | 2013-05-22 | 浙江三联环保机械设备有限公司 | Differential mechanism of spiral discharge centrifugal machine |
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Application publication date: 20130123 |