EP0733406B1 - Zentrifuge mit einer Antriebseinheit und einem Endlostreibmittel - Google Patents
Zentrifuge mit einer Antriebseinheit und einem Endlostreibmittel Download PDFInfo
- Publication number
- EP0733406B1 EP0733406B1 EP95104399A EP95104399A EP0733406B1 EP 0733406 B1 EP0733406 B1 EP 0733406B1 EP 95104399 A EP95104399 A EP 95104399A EP 95104399 A EP95104399 A EP 95104399A EP 0733406 B1 EP0733406 B1 EP 0733406B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- centrifuge
- centrifuge drum
- drive unit
- drum
- drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/12—Suspending rotary bowls ; Bearings; Packings for bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
Definitions
- the invention relates to a centrifuge with an elastically mounted centrifuge drum, a drive unit, which the centrifuge drum with an endless propellant drives, and arranged in the plane of the endless propellant Strain relief means for those caused by the continuous propellant Tensile forces.
- the elastic support of the centrifuge drum is said to vibrate isolate the unbalance acting on the drum and resulting from it Vibrations originate.
- a flexible connection between the Storage of the centrifuge drum and the centrifuge housing decouples the Vibrations of the centrifuge drum so that it does not leak to the environment be passed on.
- Endless propellants are used for power transmission, which is known to the Bearing a large lateral force in the form of the drive and preload forces exercise.
- V-belt drives are usually used. The from the Lateral force resulting from drive and preload forces causes a Relocation of the centrifuge drum. Consequently, the vibration dampers tense, which is essential when using vibrating metal rubbers deteriorated vibration isolation leads and also the life of the Vibration damper greatly shortened.
- US Pat. No. 4,640,770 is operated in batches Centrifugal system known in which a rotatable shaft at one end a gimbal, with at the other end of the Shaft the centrifuge drum is arranged.
- the wave is in one elongated bearing supported, the bearing and thus the shaft near the Centrifuge drum elastic by means of a support structure on a fixed Base frame is supported.
- the cardanic bearing on End of the shaft facing away from the centrifuge drum allows the Swiveling of the centrifuge drum connected to the drive shaft two axes of rotation arranged perpendicular to each other and orthogonal to the shaft, however, the centrifuge drum is free to move in lateral directions not possible.
- a pendulum centrifugal machine with a drive motor connected to the centrifuge drum by a drive belt is known, the drive motor being firmly connected to a support arm on the shaft bearing of the drum.
- the centrifugal machine and the drive motor are flexibly suspended on all sides.
- the drive belt tension can be adjusted by moving the drive motor on the support arm. It is disadvantageous that the vibrations originating from the drum are transmitted directly to the drive motor via the support arm, and the drive motor brings large forces into the system as a vibrating mass.
- a strain relief device for drive belt drives in which the pretensioning and driving forces on the pulley shafts are absorbed by a pressure rod on both sides of the belt pulleys are screwed on, which have a bearing on the inside in which the corresponding pulley shafts are supported.
- the shaft distance can be adjusted by turning the elongated sleeve.
- the object of the invention is to provide a centrifuge with an elastically mounted Centrifuge drum, a drive unit that the centrifuge drum with a Continuous propellant drives, and means for strain relief for those of the To specify endless propellants caused by the Centrifuge drum has all degrees of freedom.
- the strain relief device arranged according to the invention allows one Safe setting and re-tensioning of the endless propellant. Across from conventional constructions with a second shaft can reduce the overall height be significantly reduced. This not only reduces costs and reduces the space requirement of the entire system, and operation is simplified, since the Accessibility from above for the entire centrifuge is significantly improved.
- the strain relief acts in the plane of the endless propellant, the line of action preferably aligned with the input and output shafts. So they work Strain relief means exactly that generated by the endless propellant Drive and biasing forces counter without any further tension or Tipping moment arises.
- the elastic suspension of the centrifuge drum is therefore not unilaterally loaded even during centrifuge operation, so that the service life of the vibration damper is extended.
- the elastic Thrust element supports the drive and generated by the endless propellant Preload force is released elastically and thus decouples the centrifuge drum vibrationally from the drive.
- the endless propellant is a belt drive, it is a particularly good one Decoupling of the centrifuge drum from the environment is achieved.
- a belt drive also works on the centrifuge drum in the event of imbalance and vibrations trouble-free.
- the elastic thrust element or at least one compression spring Compression spring package preferably designed as coil springs, or a Has rubber spring, an ideal vibration decoupling of the drive unit reached by the centrifuge drum.
- the compression spring or the compression spring assembly is generated those to compensate for the driving and preloading forces of the endless traction means required counterforce.
- a compression spring package is the most compact version, which consequently takes up the most space can reduce as far as possible.
- rubber springs would have the advantage of being self-damping different spring stiffness from the areas left / right on the one hand and Avoid front / rear on the other hand. Have both preferred alternatives also the advantage of not needing a guide or additional elements that the could otherwise restrict freedom of movement.
- the strain relief device has a push rod, a End of the push rod, preferably adjustable in the axial direction, on the Drive unit is attached and the other end of the push rod over the elastic Thrust element is connected to the elastically mounted centrifuge drum is a ideal adhesion between drive unit and elastically mounted Centrifuge drum reached.
- the push rod in the Intermediate storage slidable but secured against rotation, for example by one in one Grooving tongue, held.
- the Drive unit can be moved on a console, for example by means of elongated holes, educated. After pretensioning the V-belt, the drive unit is on the Console screwed tight again.
- the prestressing is preferably carried out via a Adjusting nut on a threaded portion of the push rod on the strain relief device.
- the average driving force from the drive motor over the V-belt drive is transferred to the centrifuge drum by another Biasing the elastic push element on the threaded portion of the Push rod of the strain relief device can be preset. So that's it elastically supported centrifuge drum during centrifuge operation in the essentially in their zero position, d. H. is the elastic support of the centrifuge drum tension-free and has an ideal vibration-decoupling effect.
- Fig. 1 shows a part of a continuously running centrifuge with an elastic stored centrifuge drum 11 and a drive unit 12, which by means of a Electric motor 13 and a V-belt pulley 14 attached to its shaft a V-belt 16 a V-belt pulley 15 which is fixed to the bearing shaft Centrifuge drum 11 is connected drives.
- the centrifuge drum 11 is rotatable held on a centrifuge drum base plate 21.
- the Centrifuge drum base plate 21 is over vibrating metal rubbers 17 with a Base plate 20 connected.
- the drive unit 12 is fixed via a motor base plate 2, however adjustable via elongated holes, by means of screws 18 with the base plate 20 connected.
- a Strain relief device 19 arranged in the connecting line of the two deflection points of the V-belt 16, i. H. in the cutting line through the two axes of the V-belt pulleys 14 and 15 defined plane with the plane spanned by the V-belt 16 is a Strain relief device 19 arranged.
- the strain relief device 19 exists from a push rod 1 and an elastic push element 6, one end of the Push rod 1 with the motor base plate 2 which can be moved in elongated holes Drive unit 12 is connected and its opposite end with a End of the elastic push element 6 is connected.
- the other end of the elastic push element 6 is with the elastically mounted centrifuge drum base plate 21 connected.
- the elastic push element 6 consists of a Spring pack of three compression springs arranged parallel to each other.
- the elastic thrust element 6 provides the driving and biasing forces of the V-belt opposing counterforce.
- This counterforce is how 2 2
- a threaded section 22 on that of the drive unit 12 facing end of the push rod 1 is provided on the nuts 9, 10th are screwed on to make the push rod 1 adjustable in the axial direction and consequently the spring assembly of the elastic thrust element 6 as desired preload.
- An intermediate bearing 3 is provided in the push rod 1, in which the push rod 1 centers, but is held axially displaceable.
- the intermediate storage 3 is on the Centrifuge drum base plate 21 attached.
- At interim storage 3 is one Plain bearing sleeve 4 arranged around the push rod 1 mounted therein easily to keep sliding.
- the plain bearing sleeve 4 is by means of screws 7, 8 on the intermediate storage 3 attached.
- In the bore inside the plain bearing sleeve 4 is an axially parallel Groove provided, in which a spring 5, which is also in an axially parallel groove Push rod 1 is inserted, engages. The push rod 1 is thus secured against rotation stored.
- the strain relief device of the centrifuge according to the invention is like described below.
- the drive unit 12 by loosening the Screws 18 loosened from the base plate 20.
- the drive unit 12 is thus with her Motor base plate 2 can be moved along the elongated holes located therein.
- the V-belt 16 loosely placed on the V-belt pulleys 14 and 15.
- the elastic thrust element 6 By preloading the elastic thrust element 6 by adjusting the nuts 9, 10 on the Threaded portion 22 of the push rod 1 is around the V-belt pulleys 14 and 15 placed V-belts 16 tensioned.
- V-belt 16 defines the axial distance of drive unit 12 and centrifuge drum 11.
- the elastic Vibrating metal rubbers 17 hold the centrifuge drum base plate 21 and thus the Centrifuge drum 11 in its unloaded zero position.
- the engine base 2 of the Drive unit 12 is in accordance with the bias of the V-belt 16 in the Elongated holes of the motor base plate 2 have been moved on the base plate 20. Now the motor unit 12 or the motor base plate 2 is firmly attached to the base plate 20 Tighten the screws 18 connected.
- the centrifuge drum 11 With such a centrifuge, the centrifuge drum 11 is in the Hibernation, d. H. with the centrifuge stopped, no longer in its zero position. However is the centrifuge drum 11 after the start-up process during continuous centrifuge operation in unstressed center or zero position, so that the Vibrating metal rubbers have an ideal vibration damping effect and a long service life to have.
- the dynamic behavior of the centrifuge is improved because the V-belt pulleys can be precisely aligned with each other and no tilting moment works in storage.
- the centrifuge drum Belt tensile forces compensated by a resilient counterforce.
- the counterforce acts in the axis of symmetry of the belt drive between the drive unit and Centrifuge drum. This can be advantageous for those caused by the belt drive Tensioning forces do not act on the elastic centrifuge drum bearing.
- the centrifuge drum is therefore in the operating state, i. H. with continuous Centrifuge operation, in unstressed zero position. There is therefore no relocation of the rotating centrifuge drum for stationary centrifuge inlet. Therefore kick no sealing problems between centrifuge drum and centrifuge inlet or Centrifuge housing. There is therefore the possibility of one rotating product distributor with a stationary steam bell, which would hardly be possible without the strain relief according to the invention.
Landscapes
- Centrifugal Separators (AREA)
Description
Ferner ist aus der WO 93/10373 eine Zugentlastungsvorrichtung für Treibriemenantriebe bekannt, bei der die auf den Riemenscheibenwellen lastenden Vorspann- und Antriebskräfte durch einen Druckstab beidseitig der Riemenscheiben aufgenommen werden .Der Druckstab besteht aus einer langgestreckten Hülse, an deren gegenüberliegenden Enden Ösen mit gegensinnigem Gewinde angeschraubt sind, die innenseitig ein Lager haben, in das sich die entsprechenden Riemenscheibenwellen abstützen. Durch Verdrehen der langgestreckten Hülse ist der Wellenabstand einstellbar.
- Fig. 1
- eine Seitenansicht, teils geschnitten, des erfindungsgemäßen Zentrifugenantriebs und
- Fig. 2
- eine Draufsicht auf den Zentrifugenantrieb gemäß Fig. 1.
- 1
- Schubstange
- 2
- Motorgrundplatte
- 3
- Zwischenlager
- 4
- Gleitlagerhülse
- 5
- Feder
- 6
- elastisches Schubelement
- 7
- Schraube
- 8
- Schraube
- 9
- Mutter
- 10
- Mutter
- 11
- Zentrifugentrommel
- 12
- Antriebseinheit
- 13
- Elektromotor
- 14
- Keilriemenscheibe
- 15
- Keilriemenscheibe
- 16
- Keilriemen
- 17
- Schwingmetallgummi
- 18
- Schraube
- 19
- Zugentlastungsvorrichtung
- 20
- Grundplatte
- 21
- Zentrifugentrommelgrundplatte
- 22
- Gewindeabschnitt
Claims (8)
- Zentrifuge mit einer elastisch gelagerten Zentrifugentrommel (11), einer Antriebseinheit (12), die die Zentrifugentrommel mit einem Endlostreibmittel antreibt, und in der Ebene des Endlostreibmittels angeordneten Mitteln zur Zugentlastung für die von dem Endlostreibmittel hervorgerufenen Zugkräfte, dadurch gekennzeichnet, daß die Mittel zur Zugentlastung (19) zwischen zum Endlostreibmittel gehörenden Umlenkmitteln (14,15) angeordnet sind und ein elastisches Schubelement (6) aufweisen.
- Zentrifuge nach Anspruch 1, dadurch gekennzeichnet, daß das elastische Schubelement (6) wenigstens eine Druckfeder bzw. ein Druckfederpaket aufweist.
- Zentrifuge nach Anspruch 2, dadurch gekennzeichnet, daß die Druckfeder bzw. das Druckfederpaket aus Schraubenfedern gebildet ist.
- Zentrifuge nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das Endlostreibmittel ein Riementrieb (16) ist.
- Zentrifuge nach Anspruch 1, 2, 3 oder 4 dadurch gekennzeichnet, daß die Mittel zur Zugentlastung (19) eine Schubstange (1) aufweisen, wobei ein Ende der Schubstange (1) an der Antriebseinheit (12) befestigt ist und das andere Ende der Schubstange (1) über das elastische Schubelement (6) mit der elastisch gelagerten Zentrifugentrommel (11) verbunden ist.
- Zentrifuge nach Anspruch 5, dadurch gekennzeichnet, daß die Schubstange (1) in axialer Richtung einstellbar ist.
- Zentrifuge nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Schubstange (1) an einem Zwischenlager (3) verschiebbar, vorzugsweise verdrehgesichert, gehalten ist.
- Zentrifuge nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Antriebseinheit (12) zum Spannen des Endlostreibmittels verschiebbar ausgebildet ist.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59507431T DE59507431D1 (de) | 1995-03-24 | 1995-03-24 | Zentrifuge mit einer Antriebseinheit und einem Endlostreibmittel |
| EP95104399A EP0733406B1 (de) | 1995-03-24 | 1995-03-24 | Zentrifuge mit einer Antriebseinheit und einem Endlostreibmittel |
| US08/621,814 US5746915A (en) | 1995-03-24 | 1996-03-22 | Centrifuge with a drive unit and an endless drive means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP95104399A EP0733406B1 (de) | 1995-03-24 | 1995-03-24 | Zentrifuge mit einer Antriebseinheit und einem Endlostreibmittel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0733406A1 EP0733406A1 (de) | 1996-09-25 |
| EP0733406B1 true EP0733406B1 (de) | 1999-12-15 |
Family
ID=8219116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95104399A Expired - Lifetime EP0733406B1 (de) | 1995-03-24 | 1995-03-24 | Zentrifuge mit einer Antriebseinheit und einem Endlostreibmittel |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5746915A (de) |
| EP (1) | EP0733406B1 (de) |
| DE (1) | DE59507431D1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009021589A1 (de) | 2009-05-15 | 2010-11-25 | Braunschweigische Maschinenbauanstalt Ag | Kontinuierlich arbeitende Zentrifuge |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236289B (zh) * | 2013-06-06 | 2016-03-23 | 富泰华工业(深圳)有限公司 | 脱水装置 |
| CN103405958A (zh) * | 2013-07-20 | 2013-11-27 | 湖南琼鑫环保科技有限责任公司 | 将化学反应后的料所含液体分离出来的装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE640787C (de) * | 1937-01-13 | Ind Hirschau A G | Pendelschleudermaschine mit einem mit der Trommel durch einen Riemenzug o. dgl. verbundenen Antriebsmotor | |
| US3463022A (en) * | 1967-10-24 | 1969-08-26 | Caterpillar Tractor Co | Chain adjuster |
| US4640770A (en) * | 1985-04-03 | 1987-02-03 | United Coal Company | Apparatus for extracting water from solid fines or the like |
| DE3734761A1 (de) * | 1987-10-14 | 1989-05-03 | Kloeckner Humboldt Deutz Ag | Zentrifuge zum trennen von stoffen unterschiedlicher dichte mit senkrechter zentrifugenspindel |
| EP0487780B1 (de) * | 1990-11-30 | 1994-03-30 | Braunschweigische Maschinenbauanstalt AG | Kontinuierlich arbeitende Zentrifuge zum Abschleudern von Zuckerfüllmassen |
| GB9124123D0 (en) * | 1991-11-13 | 1992-01-02 | Granville Kevin | Belt or pulley drive arrangement |
-
1995
- 1995-03-24 DE DE59507431T patent/DE59507431D1/de not_active Expired - Fee Related
- 1995-03-24 EP EP95104399A patent/EP0733406B1/de not_active Expired - Lifetime
-
1996
- 1996-03-22 US US08/621,814 patent/US5746915A/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009021589A1 (de) | 2009-05-15 | 2010-11-25 | Braunschweigische Maschinenbauanstalt Ag | Kontinuierlich arbeitende Zentrifuge |
| US9174224B2 (en) | 2009-05-15 | 2015-11-03 | Bma Braunschweigische Maschinenbauanstalt Ag | Continuously operating centrifuge |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59507431D1 (de) | 2000-01-20 |
| US5746915A (en) | 1998-05-05 |
| EP0733406A1 (de) | 1996-09-25 |
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