EP1045989B1 - Hochdruckreinigungsgerät - Google Patents
Hochdruckreinigungsgerät Download PDFInfo
- Publication number
- EP1045989B1 EP1045989B1 EP98966373A EP98966373A EP1045989B1 EP 1045989 B1 EP1045989 B1 EP 1045989B1 EP 98966373 A EP98966373 A EP 98966373A EP 98966373 A EP98966373 A EP 98966373A EP 1045989 B1 EP1045989 B1 EP 1045989B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- swash plate
- motor shaft
- appliance according
- motor
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
- F04B1/141—Details or component parts
- F04B1/146—Swash plates; Actuating elements
- F04B1/148—Bearings therefor
Definitions
- the invention relates to a high-pressure cleaning device an engine and a piston pump driven by it, the piston springs of which are driven by the engine Swash plate, with a motor shaft, which can be rotated on both sides and is non-rotatable at one end is connected to the swash plate, and with a Rolling bearing with two concentric bearing rings on the swash plate side End, whose outer bearing ring in a bearing plate of the engine is held during the inner bearing ring surrounds the motor shaft.
- a non-rotatable connection of the rolling bearing with the motor shaft can be achieved in that the motor shaft has a shoulder so that the rolling bearing axially between this shoulder and the swashplate below Forming a frictional connection can be clamped can. This requires training on the shoulder the motor shaft increased manufacturing costs.
- the swash plate side To design the bearing of the motor shaft that the assembly of the motor shaft and the bearing simplified and as independent as possible from the inevitable Manufacturing tolerances.
- the recording to the swash plate open is. This facilitates assembly, since the rolling bearing inserted into the receptacle from the piston side can be.
- the housing of the engine and the Pumps are typically firmly connected.
- the pistons of the pump are surrounded by springs that are Support on the pump housing and the pistons against the Press swashplate.
- the piston axis and the longitudinal axis the motor shaft are usually parallel. This causes the piston spring to push the swash plate the attached motor shaft in the direction of the motor housing.
- the insertion depth of the motor shaft is limited by a stop.
- the motor shaft is supported on the motor housing.
- the drag to the force exerted by the piston springs is applied to the motor shaft from the stop, whereby the motor shaft is fixed in the axial direction can be.
- the stop through the bearing of the motor shaft is formed, which in turn is on the end shield supports the engine. In this way it works Force of the piston springs via the roller bearing on the end shield of the motor. The roller bearing is thus through the force of the piston springs pressed against the motor housing.
- the swash plate abuts the swash plate-side bearing. This creates a connection between the swash plate side Bearings and the motor shaft, because the swashplate is rotatably attached to the motor shaft connected is.
- the inner bearing ring surrounds the motor shaft only loose.
- the swash plate face on the inner bearing ring of the swash plate Bearing is present. Because the swashplate is not touching the two bearing rings at the same time ensures that the bearing rings are relative to each other can twist.
- the recording is one-sided open bowl with an inwardly jumping step and that the inner bearing ring is not on the Level applies.
- the spring forces act the piston springs on the swash plate, this in turn is non-rotatably connected to the motor shaft.
- the Swashplate is supported on the inner bearing ring of the Rolling bearing.
- the outer bearing ring is loose in the shell open on one side with inward jumping Step. This leads to a frictional connection, which is the effective one Force the piston springs over the swash plate, the inner bearing shell, the balls and the outer bearing shell transfers to the level of the end shield.
- the rolling bearing is designed as a ball bearing.
- the drawing shows a longitudinal section through a Electric motor with a piston pump coupled to it a high-pressure cleaning device.
- the electric motor 1 of a high-pressure cleaning device shown in FIG. 1 comprises a housing 2 in which a motor shaft 3 running in the horizontal direction is arranged. On her protruding from the electric motor 1 free end, the motor shaft 3 carries a swash plate 4, in which a pressure plate via a ball bearing 5 6 is rotatably mounted. Support this piston 7 one not shown in the drawing Piston pump from the surrounding by the piston 7 Coil springs 8 pressed against the pressure pad 6 become.
- the electric motor 1 is in a housing 2, on which the swash plate 4, surrounding the piston 7 and the pump, not shown Pump housing 9 connects.
- a transverse wall 10 forms a bearing plate in which the outer cage 11 of a ball bearing is supported, through which the motor shaft 3 is mounted in the transverse wall 10 is.
- the transverse wall 10 is used to form the end shield exempted in two stages, the second stage 13 is just so wide that only the outer cage 11 of the ball bearing 12 is supported on the step 13.
- the inner cage 14 of the ball bearing 12 surrounds the motor shaft 3 loose.
- the swash plate 4 extends over the end face of the motor shaft 3 in the radial direction just so far that it the inner cage 14 of the Ball bearing 12 covered, but the outer cage 11 not touched.
- the swash plate 4 is for example via a tie rod, which is not shown, rotatably connected to the motor shaft 3.
- the coil springs 8 are supported on the pump housing and press the pistons 7 against the swash plate 4. This in turn stands with the inner cage 14 of the ball bearing 12 in contact by frictional connection over the Balls 15 on the outer cage and thus on the step 13 of the transverse wall 10 of the housing 2 acts.
- the conventional one Pressure washers preferred non-rotatable Connection of inner cage 14 and motor shaft 13, for example by shrinking the inner cage 14 on the motor shaft 3, is in the present Embodiment unnecessary.
- the contact pressure of the Coil springs 8 is so large that between the Swash plate 4 and the inner cage 14 and the outer cage 11 and the step 13 forms a frictional connection, the quasi a rotatable connection between Motor shaft 3 and inner cage 14 over the swash plate 4 and another non-rotatable connection between the outer cage 11 and the transverse wall 10 or the step 13 realized.
- This embodiment primarily simplifies assembly of the high-pressure cleaning device and allows larger ones Manufacturing tolerances in the diameters of the bearing rings and the motor shaft.
- the ball bearing 12 becomes simple inserted into the two-stage recess of the transverse wall 10 and the motor shaft non-rotatably connected to the swash plate 4 3 inserted into the electric motor 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Details Of Reciprocating Pumps (AREA)
- Rolling Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Description
Claims (10)
- Hochdruckreinigungsgerät mit einem Motor und einer von diesem angetriebenen Kolbenpumpe, deren Kolben federnd an einer von dem Motor angetriebenen Taumelscheibe anliegen, mit einer Motorwelle, die beidseitig drehbar gelagert und an einem Ende drehfest mit der Taumelscheibe verbunden ist, und mit einem Wälzlager mit zwei konzentrischen Lagerringen (11, 12) am taumelscheibenseitigen Ende, dessen äußerer Lagerring in einem Lagerschild des Motor gehalten ist, während der innere Lagerring die Motorwelle umgibt, dadurch gekennzeichnet, daß der innere Lagerring (14) die Motorwelle (3) lose umgibt.
- Gerät nach Anspruch 1, dadurch gekennzeichnet, daß der äußere Lagerring (11) lose in einer Aufnahme (13) des Lagerschildes (10) ruht, die den äußeren Lagerring (11) in radialer und in einer axialen Richtung festlegt.
- Gerät nach Anspruch 2, dadurch gekennzeichnet, daß die Aufnahme (10, 13) zur Taumelscheibe (4) hin offen ist.
- Gerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Motorwelle (3) und die Taumelscheibe (4) durch die Kolben (7) federnd in den Motor (1) eingedrückt sind.
- Gerät nach Anspruch 4, dadurch gekennzeichnet, daß die Einschubtiefe der Motorwelle (3) durch einen Anschlag (14) begrenzt wird.
- Gerät nach Anspruch 5, dadurch gekennzeichnet, daß der Anschlag (14) durch das Lager (12) der Motorwelle gebildet wird, das sich seinerseits am Lagerschild (13) des Motors (1) abstützt.
- Gerät nach Anspruch 6, dadurch gekennzeichnet, daß die Taumelscheibe (4) stirnseitig an dem taumelscheibenseitigen Lager (12) anliegt.
- Gerät nach Anspruch 7, dadurch gekennzeichnet, daß die Taumelscheibe (4) stirnseitig am inneren Lagerring (14) des taumelscheibenseitigen Lagers (12) anliegt.
- Gerät nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß die Aufnahme (10, 13) als einseitig offene Schale mit nach innen springender Stufe (13) ausgebildet ist und daß der innere Lagerring (14) nicht an der Stufe (13) anliegt.
- Gerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß das Wälzlager (12) als Kugellager (12) ausgebildet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19800680A DE19800680A1 (de) | 1998-01-10 | 1998-01-10 | Hochdruckreinigungsgerät |
DE19800680 | 1998-01-10 | ||
PCT/EP1998/008332 WO1999035397A1 (de) | 1998-01-10 | 1998-12-18 | Hochdruckreinigungsgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1045989A1 EP1045989A1 (de) | 2000-10-25 |
EP1045989B1 true EP1045989B1 (de) | 2002-03-20 |
Family
ID=7854293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966373A Expired - Lifetime EP1045989B1 (de) | 1998-01-10 | 1998-12-18 | Hochdruckreinigungsgerät |
Country Status (7)
Country | Link |
---|---|
US (1) | US6499962B1 (de) |
EP (1) | EP1045989B1 (de) |
AU (1) | AU2275099A (de) |
BR (1) | BR9814810A (de) |
DE (2) | DE19800680A1 (de) |
DK (1) | DK1045989T3 (de) |
WO (1) | WO1999035397A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008014253A1 (de) | 2008-03-13 | 2009-09-17 | Schaeffler Kg | Taumellagerung |
DE102008014974A1 (de) | 2008-03-19 | 2009-09-24 | Schaeffler Kg | Taumellagerung |
DE102008051433A1 (de) | 2008-10-15 | 2010-04-22 | Schaeffler Kg | Taumellagerung |
DE102008051333A1 (de) | 2008-10-15 | 2010-04-22 | Alfred Kärcher Gmbh & Co. Kg | Taumellagerung |
DE102008051434A1 (de) | 2008-10-15 | 2010-04-22 | Schaeffler Kg | Taumellagerung |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005023449A1 (de) * | 2005-05-20 | 2006-12-14 | Schaeffler Kg | Taumelscheibengetriebe |
DE102006058355A1 (de) * | 2006-03-10 | 2007-09-13 | Brueninghaus Hydromatik Gmbh | Kombi-Pumpengehäuse für mehrere Nenngrößen |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2241046A (en) * | 1938-02-07 | 1941-05-06 | Gunnar A Wahlmark | Fluid motor |
US3438686A (en) * | 1967-01-23 | 1969-04-15 | Murray Co Inc | Bearing support bushing |
GB1457487A (en) * | 1974-06-19 | 1976-12-01 | Leduc G | Hydraulic swash plate pumps |
DE2923284A1 (de) * | 1979-06-08 | 1980-12-11 | Wagner Gmbh J | Verfahren und vorrichtung zur leistungsregelung von membranpumpen |
US5058485A (en) * | 1986-11-04 | 1991-10-22 | Cardillo Joseph S | Ring valve pump |
AU616393B2 (en) * | 1987-01-10 | 1991-10-31 | Sanden Corporation | Refrigerant compressor |
DE3702446A1 (de) * | 1987-01-28 | 1988-08-11 | Kaercher Gmbh & Co Alfred | Hochdruckreinigungsgeraet mit einer taumelscheibenkolbenpumpe |
DE4106955A1 (de) * | 1991-03-05 | 1992-09-10 | Kaercher Gmbh & Co Alfred | Hochdruckreinigungsgeraet |
DE9112170U1 (de) * | 1991-09-30 | 1992-11-12 | Schwarzbich, Jörg, 4800 Bielefeld | Taumelscheiben-Lagerung |
EP0796154B1 (de) * | 1994-12-08 | 1999-03-17 | Alfred Kärcher GmbH & Co. | Hochdruckreinigungsgerät |
-
1998
- 1998-01-10 DE DE19800680A patent/DE19800680A1/de not_active Ceased
- 1998-12-18 EP EP98966373A patent/EP1045989B1/de not_active Expired - Lifetime
- 1998-12-18 BR BR9814810-9A patent/BR9814810A/pt not_active IP Right Cessation
- 1998-12-18 WO PCT/EP1998/008332 patent/WO1999035397A1/de active IP Right Grant
- 1998-12-18 DK DK98966373T patent/DK1045989T3/da active
- 1998-12-18 DE DE59803473T patent/DE59803473D1/de not_active Expired - Lifetime
- 1998-12-18 AU AU22750/99A patent/AU2275099A/en not_active Abandoned
-
2000
- 2000-07-07 US US09/611,929 patent/US6499962B1/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008014253A1 (de) | 2008-03-13 | 2009-09-17 | Schaeffler Kg | Taumellagerung |
DE102008014974A1 (de) | 2008-03-19 | 2009-09-24 | Schaeffler Kg | Taumellagerung |
DE102008014974B4 (de) * | 2008-03-19 | 2016-06-23 | Schaeffler Technologies AG & Co. KG | Taumellagerung und Verfahren zu deren Herstellung |
DE102008051433A1 (de) | 2008-10-15 | 2010-04-22 | Schaeffler Kg | Taumellagerung |
DE102008051333A1 (de) | 2008-10-15 | 2010-04-22 | Alfred Kärcher Gmbh & Co. Kg | Taumellagerung |
DE102008051434A1 (de) | 2008-10-15 | 2010-04-22 | Schaeffler Kg | Taumellagerung |
Also Published As
Publication number | Publication date |
---|---|
DE59803473D1 (de) | 2002-04-25 |
US6499962B1 (en) | 2002-12-31 |
AU2275099A (en) | 1999-07-26 |
EP1045989A1 (de) | 2000-10-25 |
WO1999035397A1 (de) | 1999-07-15 |
BR9814810A (pt) | 2000-10-03 |
DE19800680A1 (de) | 1999-07-15 |
DK1045989T3 (da) | 2002-05-27 |
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