WO2016119774A1 - Stator-rotor-system und verfahren zum einstellen eines stators in einem stator-rotor-system - Google Patents
Stator-rotor-system und verfahren zum einstellen eines stators in einem stator-rotor-system Download PDFInfo
- Publication number
- WO2016119774A1 WO2016119774A1 PCT/DE2016/000032 DE2016000032W WO2016119774A1 WO 2016119774 A1 WO2016119774 A1 WO 2016119774A1 DE 2016000032 W DE2016000032 W DE 2016000032W WO 2016119774 A1 WO2016119774 A1 WO 2016119774A1
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- WO
- WIPO (PCT)
- Prior art keywords
- stator
- adjusting
- rotor system
- elements
- distance
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
- F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
- F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
- F04C2/1075—Construction of the stationary member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/102—Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2250/00—Geometry
- F04C2250/30—Geometry of the stator
Definitions
- the present invention relates to a stator-rotor system and a method of setting a stator in a stator-rotor system according to the features of the preambles of claims 1 and 12.
- the present invention relates to stator-rotor system of an eccentric screw pump for conveying liquid and / or granular media with an adjustable or adjustable stator.
- Eccentric screw pumps are pumps for pumping a large number of media, in particular viscous, highly viscous and abrasive media such as sludges, liquid manure, crude oil and fats.
- the driven, coiled rotor rolls in the stator.
- This is a housing with a spiral-shaped inside.
- the rotor performs with its figure axis an eccentric rotation about the stator.
- the outer screw i. the stator, for example, has the form of a double-threaded thread, while the rotor screw is only catchy.
- the rotor is usually made of a highly abrasion-resistant material, such as steel.
- the stator however, consists of an elastic material, for example rubber.
- the rotor is pressurized to an inner wall of the stator formed by elastic material. Due to the movement of the usually metallic rotor within the usually made of rubber or a similar material stator there is a certain abrasion or wear of the stator. Due to the wear, the pressurized contact force between the rotor and stator is reduced, in particular, the
- sensors are used, which detect the wear of the stator based on physical parameters.
- stator can be readjusted to compensate for wear.
- the voltage in the stator-rotor system can be adjusted by changing the stator diameter.
- DE 3433269 A1 describes a stator jacket with tensioning devices in the form of tension bolts, which are distributed over the entire axial length of the stator shell. This causes a significant increase in weight of the stator-rotor system. In addition, all clamping devices must be tightened individually to readjust.
- DE 3641855 A1 describes an adjustable stator with an elastomeric body, which is vulcanized into a tubular jacket which is divided into segments on the circumference by longitudinal slots and at least one clamping collar comprising the tubular jacket.
- EP 0292594 A1 discloses a stator jacket provided with a longitudinal slot for progressing cavity pumps, which has an exclusively in its pressure range
- Has clamping device for generating pressure and readjustment in case of wear of the stator.
- the tension is partially distributed over the length of the stator shell by suitable reinforcing ribs.
- Eccentric screw pumps with continuous longitudinal slots and longitudinal slots, the end a short distance before the suction end of the stator.
- a longitudinal slot is followed by a continuous slot.
- the stator comprises helical strips in areas of particularly high wear.
- the regions of the internal thread surface of the stator formed by the sections which are rectilinear in cross section are changed in their position in the radial direction. This can make even a badly worn
- Statoraus be deformed so that it resumes its original cross-sectional shape.
- a fluid is pressed between the wall of a stator shell and the elastomer part, whereby the stator diameter is changed.
- fluid is filled into inflatable tubes, whereby the pressure on the rotor is increased.
- the object of the invention is to make the clamping force of the elastomer of the stator to the rotor in the stator-rotor system of the eccentric screw variable to To compensate for the wear of the stator and in which the reflux can be kept low even after a long period of operation. Furthermore, influences of the medium on the elastomer in the system should be compensated.
- the invention relates to a stator-rotor system for a
- Such a stator-rotor system comprises a rotor with a rotor screw and a stator with an internal thread.
- the stator may for example be constructed in two parts and in particular a support element,
- stator jacket for example, include a stator jacket, and an elastomeric part, wherein the
- Elastomererteil of the stator is arranged in the support element or stator shell and has no fixed connection to the support element or stator jacket.
- it can be used as a support element, for example, an elastomer part enclosing tissue. That is, the support element or the
- the support element or the stator jacket surrounds the elastomer part at least partially full extent.
- the support element or the stator jacket surrounds the majority of the elastomer part, so that only the free outer end regions of the elastomer part project beyond the support element or the stator jacket and are not enclosed by the same.
- the stator is a stator system as in the US Pat
- stator-rotor system a stator-rotor system
- Adjusting mechanism for adjusting or readjusting of the stator comprises two coupled to the stator-rotor system adjustment elements that are distanzvariabel each other. In a first working position, the two adjusting elements at a first distance from each other and in a second
- Working position are the cross section and the length of the elastomeric part of the stator relative to the cross section and the length of the elastomeric part in the first
- Cross section of the internal thread of the elastomeric part is important in relation to the bias voltage formed between the stator and rotor.
- a compression of the elastomer part which reduces its length, causes an increase in the cross section.
- the inner contour of the stator is reduced, which increases the bias between the stator and the rotor.
- an elongation of the elastomeric part which increases its length, causes a reduction of the cross-section.
- the inner contour of the stator increases, which reduces the bias between the stator and the rotor.
- Adjustment mechanism and the stator a mechanical coupling and / or
- connection in particular, there is such a mechanical coupling and / or connection between the adjusting mechanism and the elastomer part of the stator.
- a change of the cross section and the length of the elastomer part of the stator is effected.
- the second distance is less than the first distance, wherein in the second working position, the cross-section of the elastomeric part of the stator is increased compared to the first working position and the length of the elastomeric part of the stator is reduced compared to the first working position.
- an approach of the adjustment causes an increase or increase in the bias voltage between the rotor and stator of the stator-rotor system.
- a spacing of the adjusting elements from one another causes a reduction of the bias voltage between the rotor and stator of the stator-rotor system.
- the second distance is greater than the first distance, wherein in the second working position, the cross-section of the elastomeric part of the stator is reduced compared to the first working position and the length of the elastomeric part of the stator is increased compared to the first working position.
- removal of the adjustment elements causes a reduction in the bias between the rotor and stator of the stator-rotor system.
- a spacing of the adjustment elements from one another causes an increase or increase in the bias voltage between the rotor and stator of the stator-rotor system.
- Setting element is arranged variable in position on the stator-rotor system.
- the first adjusting element is fixedly arranged on the support element or stator jacket, and the second adjustment element is arranged in a positionally variable manner on the elastomeric part of the stator.
- the first adjusting element is fixedly arranged on a flange at a free end of the support element or stator shell and that the second position-variable adjusting element is arranged at a free end of the elastomeric part of the stator.
- the adjustment of the relative distance between the two adjusting elements can be done in different ways.
- wedge elements can be assigned to each of the two adjustment elements.
- the wedge elements are operatively connected to each other, so that a change in the position of a wedge element forces a change in the position of the other wedge element.
- the first wedge element associated with the first stationary adjustment element is displaceable relative thereto
- the second wedge element associated with the second positionally variable adjustment element is fixedly attached to the second adjustment element.
- a movement of the first wedge element in particular a displacement of the first wedge element relative to the first adjusting element, causes a displacement of the second wedge element and thus a displacement of the second position-variable adjusting element.
- the displacement movement of the second wedge element is oriented approximately orthogonal to the displacement movement of the first wedge element.
- a plurality of wedge rings is provided between the two adjusting elements. By twisting the wedge rings
- the distance in a range between a minimum distance defined by the wedge rings and a maximum distance can be varied as desired.
- Adjusting elements is arranged, that the second position-variable adjusting element can be displaced in the direction of the first stationary adjusting element or in the opposite direction from the first stationary adjusting element. This is possible, for example, in combination with a toggle mechanism. Instead of a spindle and at least one hydraulic or pneumatic hollow cylinder for the change in distance between the two adjusting elements or an adjustment can be provided over several threads.
- the invention may be in addition to the adjustment of two
- Adjusting elements in particular comprise a support element, so that the elastomeric part of the stator at least partially covered and supported at an exposed outer end portion in which the elastomeric member is not enclosed by the support member or stator jacket. Furthermore, a compensation element may be necessary so that at least a majority of the exposed elastomer part is always covered and supported.
- a support and / or compensation element is arranged between the first stationary adjusting element and the second position-variable adjusting element, which has an exposed end region of the
- the support and / or compensation element of at least two the elastomeric part form-fitting encompassing and at least partially guided one inside the other
- Support elements exist. One of the support elements is stationary at the first
- Adjustment and the other support member is disposed on the second position-variable adjustment.
- one of the support members is formed as a comprehensive the end portion of the elastomeric support ring and the other support member is formed as a hollow cylinder and the flange of the support member or stator canals arranged.
- the inner diameter of the hollow cylinder is at least slightly larger than the outer diameter of the support ring.
- the support ring is guided by the cylinder-piston principle in the hollow cylinder. Support ring and
- Hollow cylinders are arranged on the stator-rotor system in such a way that the hollow cylinder largely encloses the support ring with minimal spacing between the two adjustment elements. At maximum spacing of the two adjusting elements, however, the hollow cylinder encloses a region of the support ring facing away from the free end of the elastomeric part of the stator only to a small extent. In this way, a radial support of the elastomeric part is always ensured in the not enclosed by the support member or stator shell end.
- the support elements have approximately the same inner and outer diameter.
- Each of the support elements has regularly spaced fingers.
- the support members are disposed on the stator-rotor system such that the fingers of one support member are guided in the spaces between the fingers of the other support member. With minimal spacing of the two adjustment elements, the fingers of one support element largely fill the spaces between the fingers of the other support element and vice versa. At maximum spacing of the two adjusting elements, however, only access
- the elastomeric part encompassing spring assembly, such as a corrugated spring, or a plurality of the elastomer part loosely embracing elements
- the supporting and / or compensating element can also be formed by a material introduced internally and / or externally into the elastomer part and / or applied to the elastomer part.
- the invention further relates to a method for adjusting or readjusting a stator in a stator-rotor system
- Eccentric screw pump in particular a method for adjusting or readjusting a stator in a previously described stator-rotor system.
- the relative distance between two is arranged on the stator-rotor system
- Adjustment selectively changed, whereby the cross section and / or the length of the elastomeric part can be adjusted to readjust and / or adapt to the respective operating conditions.
- the relative distance between the two adjusting elements is reduced to the cross section of the elastomer part of the
- the relative distance between the two adjusting elements is increased in order to reduce the cross-section of the elastomeric part of the stator and to increase the length of the elastomeric part of the stator, whereby the bias voltage between stator and rotor is reduced. If, however, the relative distance between the two adjusting elements is reduced, then the cross-section of the elastomer part of the stator increases, while the length of the elastomeric part of the stator decreases, the bias voltage between the stator and rotor is increased.
- the method may alternatively or in addition to the features described one or more features and / or properties of the previously described
- the Device include. Likewise, the device may alternatively or additionally comprise one or more features and / or properties of the described method. According to one embodiment of the invention is an automation of
- the adjusting mechanism with a
- Control system coupled and is controlled by this and controlled.
- the control system comprises at least one sensor for determining actual Operating parameters of the stator-rotor system and a controller for adjusting the adjustment mechanism.
- the setting of the adjusting mechanism is determined by means of sensor-measured data, wherein the setting of the adjusting mechanism is controlled by the control and / or controlled or monitored.
- the control mechanism according to the invention establishes a relationship between various physical operating parameters of the stator-rotor system and the state of wear of the stator or the prestress between stator and rotor. For example, a connection between the physical
- Wear state of the stator or the bias voltage between stator and rotor made.
- the most direct parameter that unites these relationships is the stress in the elastomer material. This can be determined either directly via a corresponding sensor in the elastomeric material, or be determined indirectly on the reaction force of the elastomer to other components.
- a correlation is produced, for example, from pressure, flow rate, rotational speed and the required preload and then a corresponding adjustment path for setting the
- Adjusting mechanism calculates distance to be set. After automated adjustment of the adjustment mechanism, the physical operating parameters of the adjustment mechanism.
- Reciprocating pump again measured and determined from it, if the optimal operating condition is reached. If the measured operating parameters do not correspond to the desired desired parameters, an adjustment path is again calculated and the adjusting mechanism adjusted, in particular the relative distance between the adjusting means of the adjusting mechanism is readjusted.
- the second position-variable setting element for changing the distance relative to the first stationary adjusting element is controlled by the controller.
- a query of the actual operating state of the eccentric screw pump is first carried out.
- Adjustment mechanism determined. Subsequently, the sensory determined actual Operating parameters compared with known or desired desired operating parameters. The comparison is made in particular on the basis of data stored in the controller. If a comparison between the actual operating parameters and the desired operating parameters is determined during the comparison, then a necessary adjustment of the adjusting mechanism is calculated and adjusted and adjusted accordingly, which leads to setting or readjustment of the stator, in particular to a change in the cross section and the length of the elastomeric part of the stator.
- Adjustment of the adjusting mechanism after a defined period of time a renewed query of the actual operating state of the eccentric screw pump and comparison with the desired operating parameters. The success of the adjustment is controlled. If there is still a significant deviation between the actual operating parameters and the desired operating parameters of the eccentric screw pump, a renewed
- Control and adjustment of the adjustment mechanism could be sufficiently reduced by the adjustment of the adjustment mechanism and thus adjusting or adjustment of the stator, the deviation between the actual operating parameters and the desired operating parameters, so there is no further adjustment. Instead, the set operating state of the eccentric screw pump is checked again after a defined period of time by previously described sensory measurements.
- Eccentric screw pump determines no deviation between the actual operating parameters and the setpoint operating parameters, so after a defined period of time a renewed query of the actual operating state of the eccentric screw pump by measuring the actual operating parameters and again a comparison of the same with the desired operating parameters.
- the stator-rotor system is constantly monitored during operation and can be quickly readjusted and adjusted.
- the pressure, the rotational speed, the temperature and / or the volumetric flow of the eccentric screw pump are sensed.
- the bias voltage between the rotor and stator and / or the reaction forces of the elastomeric material of the elastomeric part are measured.
- the position of at least one adjusting element of the sensor can Adjusting mechanism and / or the relative distance between two adjusting elements of the adjusting mechanism can be determined.
- stator-rotor system can be easily, quickly and thus cost-effectively compensated for the wear of a stator. Furthermore, the adjustment or adjustment of the stator according to the invention can also be used to adjust the bias voltage between stator and rotor of an eccentric screw pump.
- the setting of the stator can continue at standstill of the pump as
- Leakage valve can be used. At standstill of the pump, the bias voltage is increased, resulting in a seal between the rotor and stator
- the efficiency of the pump can be increased, since the reflux of medium can be largely minimized.
- the adjustment or readjustment of the stator is effected by the interaction of two adjustment elements.
- a change in the distance of the two adjusting elements to each other causes a deformation of the elastomer and thus a change in the cross section and / or the length of the elastomeric part of the stator and thus adjusting or readjusting the elastomer part of the stator.
- the position of the two elements can be over the entire stator length and beyond.
- the first stationary element may be arranged on the flange of the support element or stator jacket flange at one end of the stator-rotor system and the second stationary element on the opposite free end of the elastomeric part of the stator-rotor system.
- Figure 1 shows a schematic partial view of a known stator-rotor system (prior art).
- Figure 2 shows a schematic partial view of a first embodiment of an inventive stator-rotor system with adjusting mechanism.
- FIG. 3 schematically shows a partial view of a further embodiment of a stator-rotor system according to the invention with adjusting mechanism.
- FIG. 4 shows schematically a partial view of another embodiment of an inventive stator-rotor system with adjustment.
- FIG. 5 shows a stator with a support ring in cross section.
- Figure 6 shows another Abstschreib- compensation element of an embodiment of the stator-rotor system according to the invention.
- Figure 7 shows another Abstschreib- compensation element of an embodiment of the stator-rotor system according to the invention.
- Figures 8 to 14 show various embodiments of
- FIG. 1 shows a schematic partial view of a known stator-rotor system 1 for an eccentric screw pump.
- a system 1 comprises one in the Normally metallic, single-turn helical rotor (not shown) and a stator 3 with a two-start thread.
- the rotor performs with its figure axis an eccentric rotation about the
- the stator 3 comprises an elastomer part 4 and a stator shell 5 as a support element, wherein there is no firm connection between the elastomer part 4 and the stator shell 5.
- FIG. 2 shows a schematic partial view of a first embodiment of a stator-rotor system 10, 10a according to the invention with adjusting mechanism 12.
- the adjusting mechanism 12 comprises a first fixed adjusting element 13 and a second positionally variable adjusting element 14. A change in distance of the two
- Adjusting elements 13, 14 to one another causes a deformation of the elastomer and thus a change in the cross section and / or the length of the elastomeric part 4 of the stator 3 and thus adjusting or readjusting the elastomeric part 4 of the stator 3.
- a flange 23 on the stator shell 5 serves as a fixed Adjustment element 13 and a arranged at the free end 8 of the elastomeric part 4 actuator 24 serves as a position variable adjustment member 14th
- FIGS. 3 and 4 show schematic partial views of further embodiments of a stator-rotor system 10b, 10c according to the invention with adjusting mechanism 12.
- the protruding from the stator jacket 5 end portion 9 of the elastomeric part 4 is preferably at least partially covered and supported by a support member which the elastomeric part 4 of the stator 3 in the exposed end portion 9 in which the elastomeric part 4 is not enclosed by the stator jacket 5.
- a compensation element necessary so that always at least a majority of the exposed elastomeric part 4 is covered and supported.
- two elastomeric part 4 positively encompassing and at least partially guided into each other elements 30, 31 are provided, in particular a support ring 30 * and a hollow cylinder 31 *, according to the cylinder-piston principle, a support of the elastomeric part 4 below consideration on length changes cause.
- One of the elements, in particular the support ring 30 *, is arranged and fixed on the position-variable adjusting element 14 and the other element, in particular the hollow cylinder 31 *, is arranged and fixed on the stationary adjusting element 13.
- the position-variable adjusting element 14 approaches the stationary adjusting element 13
- the supporting ring 30 * is pushed further into the hollow cylinder 31 * .
- both elements 30, 31 together cause the support of the exposed end portion 9 and the length compensation of the elastomeric part 4, that is, each of the two elements 30, 31 serves both as a support element and as a compensation element.
- the attachment of the elastomer part 4 positively embraces element 30, in particular a support ring 30 * , for example, at the thickened free end 8 of the elastomeric part 4 and is shown in Figure 13.
- the elastomer part 4 is arranged in the stator jacket 5.
- the elastomeric part 4 positively encompassing element 30 is arranged in the form of a support ring 30 * in the region of the free end 8 of the elastomeric part 4 and screwed after assembly.
- the screw connection 40 takes place in the region of the thickening of the free end 8 of the elastomer part 4.
- FIG. 5 shows the construction of a support ring 30 arranged around the elastomer part 4 of the stator 3.
- the latter has an overlap and is fastened to the elastomer part 4 in the overlap area by means of a screw connection 40.
- FIG. 6 shows a further support compensation system comprising two elements 32, 33 that engage around the elastomer part 4 in a form-fitting manner and at least partially run one inside the other.
- the elements 32, 33 each have regularly spaced-apart fingers 34.
- the two elements 32, 33 are arranged so that the fingers 34a of the first element 32 engage in the spaces between the fingers 34b of the second element 33.
- Supporting element as well as a compensation element is used.
- FIG. 4 shows an embodiment of a stator-rotor system 10c according to the invention with adjusting mechanism 12 with a support compensating element 35 between the first fixed adjusting element 13, in particular between the Statormantelflansch 23, and the second position variable adjusting element 14, in particular the actuating element 24.
- Abstütz- compensation element 35 may for example serve loose elements which surround the elastomeric part 4 of the stator 3, between the adjusting elements 13, 14 and thus cover a large part of the exposed outer circumferential surface of the elastomeric part 4.
- Embodiment can as Abstütz- compensation element 35, for example, a the
- Elastomer part 4 of the stator 3 embracing spring assembly be provided, for example, a corrugated spring 37 shown in Figure 7. According to another embodiment, not shown, the elastomeric part
- the length of the thus supported elastomeric part 4 along the stator longitudinal axis X3 must be selected according to that to any
- Time exposed region of the elastomeric part 4 is always sufficiently supported.
- FIGS 8 to 14 show various embodiments of
- FIG. 8 shows an adjusting mechanism 12a in the form of a wedge mechanism, in which a first wedge element 50 is arranged on the first stationary adjusting element 13 and a second wedge element 54 is arranged on the second positionally variable adjusting element 14.
- the first adjusting element 13 further comprises a screw 52 fixed to the first wedge element 50 with external thread, which is guided by a nut 51 with a corresponding internal thread.
- the interaction of the wedge elements 50, 54 of the two adjusting elements 13, 14 causes a change in distance of the two adjusting elements 13, 14 to each other and thus one Deformation of the elastomer, in particular a change in the cross section and / or a change in the length of the elastomeric part. 4
- FIG. 9 shows an adjusting mechanism 12b in the form of an adjustment by means of a spindle 60.
- the spindle 60 has an external thread 62.
- the spindle 60 is rotatably arranged and mounted on the stationary on the stator jacket 5 arranged flange 23.
- the spindle 60 is fixedly mounted on the flange 23, that is, a rotation of the spindle 60 causes no change in the position of the spindle 60 relative to the flange 23.
- the spindle 60 has a Verstellansatz 66. This can for example be designed as a coupling for a motor or serve as a starting point for a manual adjustment of the spindle 60.
- a plurality of spindles may be arranged around the outer circumference of the stator 3.
- a first driven spindle 60 may be mechanically coupled to the other non-driven spindles (not shown) via a gear 64 and sprocket 65 or other suitable coupling means such that all spindles may be adjusted together.
- a second positionally variable adjusting element 14 is arranged. Between the second position-variable adjusting element 14 and the first stationary adjusting element 13 serving flange 23 a Abstweil- compensation element 35 is provided, as has been described for example in connection with Figures 3 to 6.
- the second position-variable adjustment member 14 has a bearing for the spindle 60 with an internal thread (not shown), in which the spindle 60 is rotatably supported, so that a rotation R of the spindle 60 to their
- FIG. 10 illustrates a part of an adjusting mechanism 12c in the form of a toggle lever 70.
- a spindle 72 or toothed rack 73 with an external thread 74 is assigned in a rotationally movable manner to an adjusting element 75.
- Verstellleglieder 77a is fixed in place and forms the first fixed adjustment member 13.
- the other adjustment member 77b is positionally variable and forms the second position variable adjustment member 14 by actuation of the adjusting element 75, for example by Rotation R, the spindle 72 is moved and moved in particular in the direction of movement B4. This movement is transmitted via the movable connecting elements 76 to the adjusting members 77, which are thereby brought closer to each other or moved apart, in particular, the position variable adjusting member 77b is moved relative to the fixed adjusting member 77a.
- FIG. 11 shows an adjustment mechanism 12d in the form of an adjustment by means of wedge rings 80, 82.
- the adjustment mechanism 12d is constructed, for example, from two outer wedge rings 80a, 80b and two inner wedge rings 82a, 82b and is seated at the free end 8 on the elastomer part 4 of the stator ,
- the outer wedge ring 80b is disposed on a fixed part 13, for example on the flange 23 of the stator shell (not shown).
- Opposite outer wedge ring 80a is associated with positionally variable adjustment element 14.
- the two inner wedge rings 82a, 82b sit on the widened free end 8 of the elastomer part 4 of the stator and are fixed thereto.
- Statormantels and the free end 8 of the elastomeric part 4 of the stator varies.
- FIG. 12 shows an adjusting mechanism 12e by means of a hydraulic or pneumatic hollow cylinder 90.
- the second position is variable
- Adjusting element 14 in turn arranged on the widened free end 8 of the elastomeric part 4 of the stator 3.
- the flange 23 on the stator shell 5 provided the stationary
- Adjustment 13 is increased in its outer regions in the direction of the free end 8 of the elastomeric part 4 by an attached ring or the like.
- variable adjustment element 14 is at least one hydraulic or
- the second position-variable adjusting element 14 can be moved in the direction of the first stationary adjusting element 13 or in the opposite direction.
- the change in distance between the two adjusting elements 13, 14 causes the desired deformation of the elastomeric part 4 and thus adjusting or readjusting the elastomeric part 4 of the stator 3.
- Analogously to Figures 2 to 4 is again a Abstütz- compensation element 35 between the second variable position adjustment member 14 and as first fixed
- Adjustment element 13 serving flange 23 is provided
- Figure 13 shows an adjusting mechanism 12f, which achieves the adjustment of the relative distance of the adjusting elements 13, 14 to each other by means of threads.
- the fixed adjusting element 13 is connected via a threaded arrangement with the position-variable adjusting element 14 in operative connection.
- Adjusting element 14 is designed as an adjusting ring 93 and placed with a thread on the flange of the elastomeric part 4.
- the adjusting ring 93 also receives a collar 95, which is fixed by a clamping ring 97.
- a fixed mounting ring is arranged at the free end 8 of the elastomeric part 4.
- the mounting ring 92 is associated with a drive gear 94 and a gear 96 with internal thread.
- the internal gear wheel 96 in turn engages the position variable adjustment member 14 and
- Adjusting ring 93 on.
- the rotation of the threads of the gears 94, 96 against each other causes a movement of the position-variable adjusting element 14 or Verstellrings 93 along the longitudinal axis X3 of the stator (not shown) and the elastomeric part 4th
- Fig. 14 shows an adjusting mechanism 12g serving as a medium-actuated
- Adjustment system in particular hydraulic or pneumatic adjustment system, using a membrane 45 is formed.
- the principle of the medium-actuated adjusting mechanism 12g is a modification of the idea of adjustment by means of a hydraulic cylinder 46 according to FIG. 12.
- the prestress between stator 3 and rotor (not shown) is set as a function of a medium pressure on the membrane 45.
- the hydraulic cylinder 46 comprises a fixedly fixed cylinder part 47 and a movably mounted cylinder part 48, on which the diaphragm 45 is arranged such that it separates the hydraulic fluid H from the medium pumped by the eccentric screw pump.
- the hydraulic cylinder 46 is arranged at the free end 8 of the elastomeric part 4 of the stator 3, in particular the movably mounted cylinder part 48 is fastened to the elastomer flange and the fixedly fixed cylinder part 47 is arranged and fixed on the stator jacket 5.
- Embodiment realized by the membrane 45 As the pump pressure increases, the pressure on the diaphragm 45 is transferred to the hydraulic fluid H, resulting in an adjustment of the hydraulic cylinder 46. In particular, causes a
- Pressure transfer D an adjustment of the movably mounted cylinder part 48 relative to the fixed fixed cylinder part 47.
- the provision of the hydraulic cylinder 46 at a pressure reduction takes place via the spring force of the elastomer of the
- a encompassing (support) - element 30 which supports the elastomeric part 4 of the stator 3 in the exposed end portion 9, in which the elastomeric part 4 is not of the stator jacket 5 is enclosed, at least partially covered and supported.
- Compensation element 36 which can compensate for the change in length of the elastomeric part 4 of the stator-rotor system of the eccentric screw pump relative to a fixed flange 20 of the eccentric screw pump.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Transmission Devices (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2017130344A RU2017130344A (ru) | 2015-01-29 | 2016-01-29 | Рабочая пара одновинтового насоса и способ регулировки ее статора |
KR1020177024065A KR20170108127A (ko) | 2015-01-29 | 2016-01-29 | 스테이터/로터 시스템, 그리고 스테이터/로터 시스템 내에서 스테이터 조정 방법 |
JP2017540193A JP2018507347A (ja) | 2015-01-29 | 2016-01-29 | ステータ・ロータシステム及びステータ・ロータシステムにおけるステータを調整するための方法 |
CN201680007362.0A CN107208483B (zh) | 2015-01-29 | 2016-01-29 | 定子-转子系统和用于调节定子-转子系统中定子的方法 |
US15/547,400 US10760570B2 (en) | 2015-01-29 | 2016-01-29 | Stator-rotor system and method for adjusting a stator in a stator-rotor system |
AU2016212424A AU2016212424B2 (en) | 2015-01-29 | 2016-01-29 | Stator-rotor system and method for adjusting a stator in a stator-rotor system |
EP16708337.7A EP3250828B1 (de) | 2015-01-29 | 2016-01-29 | Stator-rotor-system und verfahren zum einstellen eines stators in einem stator-rotor-system |
ZA2017/04733A ZA201704733B (en) | 2015-01-29 | 2017-07-13 | Stator-rotor system and method for adjusting a stator in a stator-rotor system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015101352.5A DE102015101352A1 (de) | 2015-01-29 | 2015-01-29 | Stator-Rotor-System und Verfahren zum Einstellen eines Stators in einem Stator-Rotor-System |
DE102015101352.5 | 2015-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016119774A1 true WO2016119774A1 (de) | 2016-08-04 |
Family
ID=55484776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2016/000032 WO2016119774A1 (de) | 2015-01-29 | 2016-01-29 | Stator-rotor-system und verfahren zum einstellen eines stators in einem stator-rotor-system |
Country Status (10)
Country | Link |
---|---|
US (1) | US10760570B2 (de) |
EP (1) | EP3250828B1 (de) |
JP (1) | JP2018507347A (de) |
KR (1) | KR20170108127A (de) |
CN (1) | CN107208483B (de) |
AU (1) | AU2016212424B2 (de) |
DE (1) | DE102015101352A1 (de) |
RU (1) | RU2017130344A (de) |
WO (1) | WO2016119774A1 (de) |
ZA (1) | ZA201704733B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108591051B (zh) * | 2018-04-11 | 2019-11-08 | 安徽埃斯克制泵有限公司 | 新型螺杆泵 |
CN114341499B (zh) * | 2019-08-29 | 2023-12-29 | 兵神装备株式会社 | 单轴偏心螺杆泵 |
JP7432921B2 (ja) | 2019-08-29 | 2024-02-19 | 兵神装備株式会社 | 一軸偏心ねじポンプ |
DE102020111386A1 (de) | 2020-04-27 | 2021-10-28 | Vogelsang Gmbh & Co. Kg | Zustandserfassung an Exzenterschneckenpumpen |
CN113652288A (zh) * | 2021-09-13 | 2021-11-16 | 孚迪斯石油化工(葫芦岛)有限公司 | 一种航改燃气轮机防锈型润滑油、生产方法及设备 |
DE102021131427A1 (de) | 2021-11-30 | 2023-06-01 | Vogelsang Gmbh & Co. Kg | Exzenterschneckenpumpe mit Arbeitszustellung und Ruhezustellung sowie Verfahren zum Steuern der Exzenterschneckenpumpe |
CN114472940B (zh) * | 2022-03-24 | 2023-04-28 | 安徽新诺精工股份有限公司 | 用于数控立式车削中心主轴单元安装支撑的机构 |
DE102022119147A1 (de) * | 2022-07-29 | 2024-02-01 | Ruhr-Universität Bochum, Körperschaft des öffentlichen Rechts | Verfahren zur Bestimmung oder Überwachung des Förderstroms einer Exzenterschneckenpumpe |
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-
2015
- 2015-01-29 DE DE102015101352.5A patent/DE102015101352A1/de not_active Withdrawn
-
2016
- 2016-01-29 JP JP2017540193A patent/JP2018507347A/ja active Pending
- 2016-01-29 US US15/547,400 patent/US10760570B2/en active Active
- 2016-01-29 KR KR1020177024065A patent/KR20170108127A/ko not_active Application Discontinuation
- 2016-01-29 AU AU2016212424A patent/AU2016212424B2/en active Active
- 2016-01-29 WO PCT/DE2016/000032 patent/WO2016119774A1/de active Application Filing
- 2016-01-29 CN CN201680007362.0A patent/CN107208483B/zh active Active
- 2016-01-29 EP EP16708337.7A patent/EP3250828B1/de active Active
- 2016-01-29 RU RU2017130344A patent/RU2017130344A/ru unknown
-
2017
- 2017-07-13 ZA ZA2017/04733A patent/ZA201704733B/en unknown
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US3139035A (en) | 1960-10-24 | 1964-06-30 | Walter J O'connor | Cavity pump mechanism |
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Also Published As
Publication number | Publication date |
---|---|
US10760570B2 (en) | 2020-09-01 |
AU2016212424B2 (en) | 2019-05-09 |
JP2018507347A (ja) | 2018-03-15 |
ZA201704733B (en) | 2018-08-29 |
EP3250828B1 (de) | 2020-04-29 |
KR20170108127A (ko) | 2017-09-26 |
CN107208483A (zh) | 2017-09-26 |
CN107208483B (zh) | 2019-05-31 |
RU2017130344A3 (de) | 2019-02-28 |
EP3250828A1 (de) | 2017-12-06 |
DE102015101352A1 (de) | 2016-08-04 |
RU2017130344A (ru) | 2019-02-28 |
AU2016212424A1 (en) | 2017-07-13 |
US20180010603A1 (en) | 2018-01-11 |
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