EP1097306A1 - Schwenkmotor - Google Patents
SchwenkmotorInfo
- Publication number
- EP1097306A1 EP1097306A1 EP99919094A EP99919094A EP1097306A1 EP 1097306 A1 EP1097306 A1 EP 1097306A1 EP 99919094 A EP99919094 A EP 99919094A EP 99919094 A EP99919094 A EP 99919094A EP 1097306 A1 EP1097306 A1 EP 1097306A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- pressure
- sealing ring
- ring
- sliding
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
-
- 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
- F01C21/003—Systems for the equilibration of forces acting on the elements of the machine
Definitions
- the invention relates to a swivel motor according to the preamble of claim 1.
- Such swivel motors are used in particular in the aviation and vehicle industries.
- Such a swivel motor consists of a stator with a housing and covers on both sides. One or more stator blades are arranged in the housing. An output shaft is mounted in the covers, which is equipped with rotor blades of the same number.
- the Statorflugel and Rotorflugel form mehere volu enveranderliche Kam ⁇ chambers, which are formed as pressure or flow areas and therefore have n gleichen connection to corresponding inlet or outlet.
- annular sealing element for tightness to the outside, there is an annular sealing element in the area of the output axis between the rotor and each cover, which is arranged primarily in the cover.
- Swing motors of this type are subject to major leakage problems, not least because of the limited and changing the rotational movement ken in a very high wear of the sealing elements and in an unsatisfactory sealing quality in the output shaft blan ⁇ .
- this sealing variant cannot meet the high requirements with regard to start-up behavior, tightness and service life. There is therefore the task improve the starting behavior in radial pivot engines of the present type to ver ⁇ while maintaining the high standard of D chtfunk- station and the service life.
- the invention eliminates the disadvantages mentioned in the prior art.
- the start-up behavior of the swivel motor is improved in that the static pressure enclosed in the installation space of the diagonal seal and the dynamic working pressure prevailing in the pressure spaces can be balanced out via pressure compensation channels on both sides of the sliding seal. This reduces the undesirable contact forces acting at a standstill and during the operation of the swivel motor in an appropriate range.
- FIG. 1 shows a swivel motor in longitudinal section
- FIG. 2 shows the swivel motor in cross section
- FIG. 3 shows the rotor of the swivel motor in a perspective view
- Fig. 4 the mechanical seal in a view
- Fig. 5 the mechanical seal in a partial section.
- the swing motor in accordance with the Fig. 1, in the main thing ⁇ of an outer stator 1 and an inner rotor 2.
- the stator 1 is composed of a housing 3 and covers 4 arranged on both ends of the housing 3, which are fastened by means of screws, not shown.
- a clamping ring 5 on each cover side assumes the fi xation ⁇ the radial position to one another. - 6 -
- Both covers 4 each have a bearing bore. Inside the housing 3 s is a cylindrical bore ch ⁇ housing, the opposite in the length of two mutually opposite and radially aligned Statorflugeln 6 m two free space is divided.
- the rotor 2 consists of a driven shaft 7 with double-sided bearing pin 8 and a da fundamentallie ⁇ constricting cylinder member 9.
- Rotorflugel 10th In the region of this cylindrical portion 9 are arranged two opposed and radially aligned Rotorflugel 10th
- the rotor 2 is m the casing 3 of the stator 1 is fitted so that between the head of Rotorflugels 10 and the inner wall of the housing as well as between the head of Statorflugels 6 and the circumferential of the Zylmderteils 9 flat respectively en axially rich ⁇ Teter sealing gap 11 is formed is.
- each Rotorflugel 10 divides one of the two free ⁇ space in housing 3 into a pressure chamber 13 and m has a psychology Hurm 14, located so that two opposing pressure space 13 and two opposed flow space 14 result in that during reverse to the operation.
- Both pressure spaces 13 and both discharge spaces 14 are connected to one another by inner channels 15 and 16, respectively, while one of the two pressure spaces 13 with an inlet connection 17 and one of the two discharge spaces 14 with an outlet connection
- any Stator vane 6 and each rotor vane 10 are provided with two slow-running legs 21, which form a central groove 22 extending over them over the entire height and over the entire length.
- the frame sealing element 20 is pressed into this groove 22. This ensures that the rotor wing 10 is sealed on the circumference and on the end faces of each rotor wing 10 against the housing 3 and the covers 4.
- a sliding seal ring 23 is axially displaceable drive shaft on the Ab ⁇ placed 7, it so that, with its radially directed sliding and sealing surface m a sliding manner to the inner surface of the lid 4 abuts and egg here NEN radially aligned sealing gap 24 trains.
- the sliding seal ring 23 has a recess on its side facing away from the cover 4, which serves as an installation space 27 is designed for a diagonal sealing ring 28.
- This installation space 27 forms in interaction with a through ⁇ messerstufung the cylinder part 9 of the output shaft 7, a first sealing edge 29 and a second sealing edge 30.
- the sealing ring 28 is diagonal z. B. formed with two sealing parts and with an intermediate and movable guide part and fitted in the installation space 27 so that the one sealing part on the one hand abuts the first sealing edge 29 and the other sealing part on the second sealing edge 30.
- the Gleitdicht ⁇ are ring 23 and the rotor 2 is further equipped with a rotation.
- both legs 21 of the rotor blade 10, which enclose the frame sealing element 20, are formed on their end faces as drivers 31.
- the sliding seal ring 23 has on the periphery of two ge ⁇ genüberantede pairs of axial grooves 32, each pair of Ro ⁇ leaf is of grooves 32 the two arms 21 of an associated 10th Insofar as the Ab ⁇ corresponding stand of both grooves 32 of a pair of the sliding seal ring 23 the distance between the two carriers 31 on the legs 21 of the rotor blade 10.
- corresponding to the dimensions ⁇ each of the axial groove 32 the dimensions of the corresponding opposed follower 31, so that in the mounted state each driver 31 in an axial groove 32 engages a ⁇ .
- the sliding seal ring 23 is further equipped with means for a static and a dynamic pressure relief to reduce the frictional resistance between the sliding ⁇ sealing ring 23 and the lid.
- the sliding seal ring 23 for the static pressure relief on the cover side has a circumferential ring channel 33, the position and size of its effective base area being matched to the position and size of the pressure-loaded base area of the pressure-side installation space 27 for the diagonal seal ring 28.
- At least one pressure compensation bore 34 connects the cover-side ring channel 33 to the pressure-side installation space 27 of the diagonal sealing ring 28.
- four ring channels 35 are again provided on the cover side of the sliding sealing ring 23, which are arranged on a common circumferential line and are limited in length.
- two adjacent ring channels 35 are firstly separated by ei ⁇ NEN web 36 and on the other hand by the two grooves 32 with the intervening Nutensteg 37 in ⁇ mer.
- the size of the effective base area corresponds to a predetermined part of the pressure-effective surface of the sliding seal ring 23.
- This arrangement always connects two opposite annular channels 35 to the two opposite pressure chambers 13 of the swivel motor, while the webs 36 and the groove webs lying between the grooves 32 are the pressure chambers 13 separate from the adjacent runoff rooms 14. - 1 0 -
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19812752A DE19812752C1 (de) | 1998-03-23 | 1998-03-23 | Schwenkmotor |
DE19812752 | 1998-03-23 | ||
PCT/DE1999/000742 WO1999049226A1 (de) | 1998-03-23 | 1999-03-17 | Schwenkmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1097306A1 true EP1097306A1 (de) | 2001-05-09 |
EP1097306B1 EP1097306B1 (de) | 2005-07-27 |
Family
ID=7862014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99919094A Expired - Lifetime EP1097306B1 (de) | 1998-03-23 | 1999-03-17 | Schwenkmotor |
Country Status (5)
Country | Link |
---|---|
US (1) | US6429551B1 (de) |
EP (1) | EP1097306B1 (de) |
DE (2) | DE19812752C1 (de) |
ES (1) | ES2245099T3 (de) |
WO (1) | WO1999049226A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6870295B2 (en) * | 2001-01-22 | 2005-03-22 | Lg Electronics Inc. | Oscillating motor and motor control apparatus and method |
DE102004010432B3 (de) * | 2004-03-01 | 2005-10-06 | Zf Friedrichshafen Ag | Dichtungseinrichtung für einen radialen Schwenkmotor |
US20060059937A1 (en) * | 2004-09-17 | 2006-03-23 | Perkins David E | Systems and methods for providing cooling in compressed air storage power supply systems |
DE102006014018A1 (de) * | 2006-03-27 | 2007-10-04 | Robert Bosch Gmbh | Hydraulischer Schwenkmotor |
WO2009109283A1 (de) * | 2008-03-01 | 2009-09-11 | Ixetic Hückeswagen Gmbh | Schwenkmotorgehäuse |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3128679A (en) * | 1962-04-26 | 1964-04-14 | Roto Actuator Corp | Sealing and stop means for fluid motors |
US3195421A (en) * | 1963-02-04 | 1965-07-20 | Houdaille Industries Inc | Rotary hydraulic actuator and sealing means therefor |
US3426654A (en) * | 1967-02-06 | 1969-02-11 | Ex Cell O Corp | Shaft mounting and sealing construction for rotary actuators |
US4656925A (en) * | 1985-01-24 | 1987-04-14 | Sollami Phillip A | Face seal |
US4823678A (en) * | 1987-10-26 | 1989-04-25 | Sollami Phillip A | Rotary actuator |
DE4333047C1 (de) * | 1993-09-29 | 1994-10-27 | Freudenberg Carl Fa | Dichtungsanordnung |
ES2212323T3 (es) * | 1997-06-17 | 2004-07-16 | Zf Lemforder Metallwaren Ag | Anillo de obturacion de un motor basculante. |
EP1019637B1 (de) * | 1997-09-29 | 2004-04-14 | ZF Lemförder Metallwaren AG | Radialer schwenkmotor |
-
1998
- 1998-03-23 DE DE19812752A patent/DE19812752C1/de not_active Expired - Fee Related
-
1999
- 1999-03-17 WO PCT/DE1999/000742 patent/WO1999049226A1/de active IP Right Grant
- 1999-03-17 ES ES99919094T patent/ES2245099T3/es not_active Expired - Lifetime
- 1999-03-17 DE DE59912339T patent/DE59912339D1/de not_active Expired - Fee Related
- 1999-03-17 EP EP99919094A patent/EP1097306B1/de not_active Expired - Lifetime
- 1999-03-17 US US09/647,259 patent/US6429551B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9949226A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6429551B1 (en) | 2002-08-06 |
DE59912339D1 (de) | 2005-09-01 |
ES2245099T3 (es) | 2005-12-16 |
EP1097306B1 (de) | 2005-07-27 |
DE19812752C1 (de) | 1999-08-12 |
WO1999049226A1 (de) | 1999-09-30 |
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