EP2747891A1 - Nozzle head for a cleaning device - Google Patents
Nozzle head for a cleaning deviceInfo
- Publication number
- EP2747891A1 EP2747891A1 EP11748926.0A EP11748926A EP2747891A1 EP 2747891 A1 EP2747891 A1 EP 2747891A1 EP 11748926 A EP11748926 A EP 11748926A EP 2747891 A1 EP2747891 A1 EP 2747891A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- sleeve
- nozzle head
- inlet
- channel
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 26
- 230000000694 effects Effects 0.000 description 5
- 229910010293 ceramic material Inorganic materials 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/025—Rotational joints
- B05B3/026—Rotational joints the fluid passing axially from one joint element to another
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
- B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction, i.e. creating a spinning torque due to a tangential component of the jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
Definitions
- the invention relates to a nozzle head for a cleaning device, in particular a surface cleaning device, with an inlet part, which has an inlet channel for a pressurized cleaning liquid, and with a nozzle support part on which at least one cleaning nozzle is arranged and which has a supply channel for supplying the cleaning liquid to the at least one cleaning nozzle, wherein the nozzle support member is rotatable relative to the inlet part about an axis of rotation and the inlet channel via a arranged at its output first sleeve part and a arranged at the inlet of the supply channel second sleeve part is in flow communication with the supply channel, and wherein the sleeve parts facing each other sealing surfaces exhibit.
- a nozzle head is known from the published patent application DE 197 11 837 AI.
- a pressurized cleaning liquid such as water
- Nozzle heads of this type are used, for example, in surface cleaning devices in which the rotatable nozzle support part has at least two support arms, on each of which a cleaning nozzle is held.
- a cleaning liquid can be applied to a surface to be cleaned via the cleaning nozzles rotating together with the nozzle support part.
- the sealing surfaces are usually finely worked, in particular polished. Strong adhesion forces between the sealing surfaces then lead to a high density in the area between the two sleeve parts. However, it has been shown that the adhesion forces counteract a rotational movement of the nozzle carrier part. It must therefore be provided in many cases considerable driving forces to enable the nozzle support member in rotation can.
- sealing surface has at least one sleeve part at least one recess.
- the sleeve parts are preferably made of a very wear-resistant material, in particular of a ceramic material.
- the ceramic material can be very finely ground and polished in the region of the sealing surface and have a considerable hardness.
- the two sleeve parts each comprise a central through-passage through which the cleaning liquid can flow from the inlet channel to the supply channel. It is advantageous if the at least one recess is connected to the central through-channel. For example, starting from the passageway, the depression can extend in the direction away from the axis of rotation of the nozzle carrying part. The at least one recess thus connects to the central passage and is supplied by this with cleaning fluid. This results in a structurally simple way to a lubrication, that is, to a reduction of friction and wear between the two sealing surfaces.
- At least three recesses preferably five or seven recesses, are arranged at a uniform angular distance from one another on a sealing surface.
- the axial extent of the at least one depression is less than one millimeter, in particular less than one-half millimeter, for example 0.3 millimeter.
- the sealing surfaces of the two sleeve parts each have at least one recess.
- the two sleeve parts are identical. This reduces the manufacturing costs of the sleeve parts and also simplifies their assembly.
- the first sleeve part is non-rotatably and axially movably held in an outlet section of the inlet channel. The pressure of the cleaning liquid acting on the first sleeve part in the axial direction presses the first sleeve part in such a bearing in the direction of the sealing surface of the second sleeve part and thereby enhances the sealing effect.
- the output portion of the inlet channel forms a receptacle into which the first sleeve part can be conveniently inserted with the interposition of a sealing ring which surrounds the sleeve part in the circumferential direction.
- the second sleeve part is rotatably and axially movably held in an input portion of the supply channel in an advantageous embodiment.
- the input section of the supply channel forms a receptacle, into which the second sleeve part can be conveniently inserted with the interposition of a sealing ring which surrounds the sleeve part in the circumferential direction.
- the second sleeve part has at least one anti-rotation element which protrudes from a cylindrical base body of the second sleeve part to the outside and immersed in a complementarily configured anti-rotation receptacle of the supply channel.
- Figure 1 a schematic sectional view of a cleaning device with a nozzle head according to the invention
- FIG. 3 shows a sectional view of a sleeve part of the nozzle head of Figure 1
- FIG. 4 shows a plan view of the sleeve part from FIG. 3.
- an inventive nozzle head 30 is held centrally, which is shown enlarged in Figure 2. It comprises a housing-like inlet part 32, which passes through the ceiling wall 14 and facing the cleaning chamber 20 has a recess 34. Dips into the recess 34 a nozzle support member 36 with a hollow shaft 38 a. Via a first ball bearing 40 and a second ball bearing 42, the hollow shaft 38 is rotatably mounted in the recess 34 of the Einlassmaschines 32 about an aligned perpendicular to the top wall 14 axis of rotation 44.
- the hollow shaft 38 protrudes in the direction of the cleaning chamber 20 from the recess 34 and is rotatably connected to a distributor part 46 of the nozzle support member 36 having two diametrically opposed support arms 48, 50.
- the support arms 48, 50 are aligned perpendicular to the axis of rotation 44 and carry at their free end in each case a cleaning nozzle 52 and 54.
- the hollow shaft 38 forms a first channel section 56 and the distributor part 46 forms a branching second channel section 58 of a supply channel 60, over the the cleaning nozzles 52, 54 can be supplied with pressurized cleaning liquid.
- a surface to be cleaned in the region which is surrounded by the bristle strips 26 can be sprayed with cleaning liquid.
- the cleaning nozzles 52, 54 produce an obliquely downwardly directed liquid jet of the cleaning liquid, which exerts a torque on the support arms 48, 50 at the exit from the cleaning nozzles 52, 54 and thereby put them together with the hollow shaft 38 about the rotation axis 44 in rotation.
- the recoil of the cleaning liquid thus forms a driving force for the rotational movement of the nozzle-carrying part 36 relative to the inlet part 32.
- the inlet part 32 comprises an inlet channel 62, via which the cleaning liquid can be supplied to the supply channel 60.
- the inlet channel 62 has an input section oriented perpendicular to the axis of rotation 40, which merges via an intermediate section 66 oriented obliquely to the axis of rotation 44 into an output section 68 aligned flush with the hollow shaft 38 and consequently collinear with the axis of rotation 44.
- a connection part 70 which is surrounded by a sealing ring 72 and has a continuous longitudinal channel 74 aligned perpendicularly to the axis of rotation 44, enters the input section 64.
- the inlet part 32 is encompassed above the top wall 14 by a fork-shaped feed line 76 into which the connector 70 dips with its protruding from the inlet section 64 of the inlet channel 32 area and which includes a feed line 78, via the longitudinal channel 74 of the connecting part 70 with the Inlet channel 62 is in flow communication. Via the supply line 78 and the longitudinal channel 74, the inlet channel 62 can be supplied with pressurized cleaning liquid.
- the output section 68 of the inlet channel 62 has two complementary to the anti-rotation locks 84, 86 configured anti-rotation recordings, so that the first sleeve member 80 can be inserted in the axial direction in the output section 68, wherein the anti-rotation locks 84, 86 are received by the anti-rotation recordings and thus the first sleeve member 80 in the output section 68 rotatably and axially displaceable.
- an annular groove is formed, which receives a sealing ring 92 which surrounds the first sleeve member 80 in the circumferential direction.
- the first sleeve part 80 Facing the hollow shaft 38, the first sleeve part 80 has a first sealing surface 94 which is microfinished, for example polished.
- An input section 95 of the hollow shaft 38 forms a receptacle for a second sleeve part 96, which is configured in the same way as the first sleeve part 80. It is also made of a wear-resistant material, in particular made of a ceramic material and has a cylindrical base body 98, of which two diametrically opposed anti-rotation devices 100, 102 protrude radially outward.
- the input portion 95 of the hollow shaft 38 has two complementary to the anti-rotation devices 100, 102 configured anti-rotation recordings.
- the two sleeve parts 80 and 96 are identical.
- the second sleeve part 96 is shown enlarged in FIGS. 3 and 4. Like the first sleeve part 80, it has a passage 112 extending longitudinally through the sleeve part.
- a plurality of channel-shaped recesses 114 are arranged which extend from the through-passage 112 and extend in the radial direction over a partial region of the respective sealing surface 94 and 108.
- the depressions 114 are surrounded by a self-contained annular surface 116 and are inclined in the direction of rotation 118 of the nozzle carrier part 36 in the manner of guide vanes. This becomes clear in particular from FIG.
- the recesses 114 may have, for example, a depth of a few tenths of a millimeter, for example a depth of 0.3 millimeters.
- the length of the recesses is preferably significantly more than their depth, for example, the recesses may have a length of 1 millimeter.
- the width of the depressions is preferably at least twice as large as their depth. For example, it can be provided that the width of the recesses is about 0.8 millimeters.
- a spray lance can be connected to the supply line 76, which is connected via a pressure hose to a high-pressure cleaning device.
- the cleaning fluid flows through the supply line 78 of the supply line part 76 and enters via the longitudinal channel 74 of the connecting part 70 in the inlet channel 62 a.
- the cleaning liquid then flows through the passage 112 of the first sleeve part 80 and the passage 112 of the second sleeve part 96 and is then fed via the supply channel 60 to the two cleaning nozzles 52, 54. From the cleaning nozzles 52, 54, the cleaning liquid is directed to the surface to be cleaned.
- the recoil acting on the cleaning nozzles 52, 54 acts as a driving force for the nozzle support member 36, which is rotated about the axis of rotation 44 under the action of the recoil.
- the second sleeve member 96 rotates due to its rotationally fixed connection with the hollow shaft 38 together with the nozzle support member 36 about the rotation axis 44, whereas the first sleeve member 80 due to its rotationally fixed connection with the stationary inlet part 32 performs no rotational movement.
- the two sleeve parts 80, 96 in combination with the inlet part 32 and the rotatably mounted nozzle carrier part 36 a self-lubricating rotary feedthrough for a pressurized fluid, wherein the rotary feedthrough has only very low frictional forces.
Landscapes
- Nozzles (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2011/064404 WO2013026471A1 (en) | 2011-08-22 | 2011-08-22 | Nozzle head for a cleaning device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2747891A1 true EP2747891A1 (en) | 2014-07-02 |
EP2747891B1 EP2747891B1 (en) | 2018-12-19 |
Family
ID=44512890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11748926.0A Active EP2747891B1 (en) | 2011-08-22 | 2011-08-22 | Nozzle head for a cleaning device |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2747891B1 (en) |
CN (1) | CN103747879B (en) |
BR (1) | BR112013032401A2 (en) |
DK (1) | DK2747891T3 (en) |
RU (1) | RU2567632C2 (en) |
WO (1) | WO2013026471A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105327805A (en) * | 2015-11-20 | 2016-02-17 | 国家电网公司 | Deicing machine for transformer |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202013104238U1 (en) * | 2013-09-17 | 2013-11-18 | Guggenberger Reinigungstechnik E.K. | rotating nozzle |
CN105964600A (en) * | 2016-07-01 | 2016-09-28 | 青岛炬荣工程科技有限公司 | Novel cavitation jet flow cleaning disc |
CN107639549A (en) * | 2016-07-21 | 2018-01-30 | 上海交通大学 | Single nozzle automatic sand blasting rifle |
CN107639550A (en) * | 2016-07-21 | 2018-01-30 | 上海交通大学 | More shower nozzle automatic sand blasting rifles |
CN106238429A (en) * | 2016-09-01 | 2016-12-21 | 常州航天岳达精密机械有限公司 | A kind of rotator for high-pressure cleaning device |
DE102019134040A1 (en) * | 2019-12-11 | 2021-06-17 | Hammelmann GmbH | Cleaning device |
JP7037210B2 (en) * | 2020-07-01 | 2022-03-16 | 有限会社タクショー | Cleaner |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3532045A1 (en) * | 1985-09-09 | 1987-03-19 | Josef Kraenzle | ROTATIONAL NOZZLE |
DE3902135A1 (en) * | 1989-01-25 | 1990-07-26 | Paul Hammelmann | NOZZLE HEAD WITH A DRIVABLE NOZZLE BEARING BEARED BY AN AXLE |
CN2152606Y (en) * | 1993-03-01 | 1994-01-12 | 石油大学(华东) | Liquid film closed rotary jet flow generator |
DE19711837A1 (en) | 1997-03-21 | 1998-09-24 | Hammelmann Paul Maschf | Nozzle head with a drivable nozzle holder which is rotatably mounted about a longitudinal axis |
US6551001B2 (en) * | 2001-09-14 | 2003-04-22 | S. C. Johnson & Son, Inc. | Cleaning device with a trigger-actuated spray canister |
RU40607U1 (en) * | 2004-04-26 | 2004-09-20 | Лось Виталий Михайлович | ROTARY SURFACE CLEANER WITH ROTATING ROTARY JET FLOWS |
DE102004022587A1 (en) * | 2004-05-07 | 2005-12-01 | Jäger, Anton | Ejection device for fluid has rotary transmission duct exchangeably fitted in guide passage formed by stator and rotor and detachably fixed on rotor via sealing insert accessible from outside |
JP4742683B2 (en) * | 2005-06-02 | 2011-08-10 | ソニー株式会社 | Liquid detection device and liquid ejection device |
CN100407979C (en) * | 2006-05-16 | 2008-08-06 | 李爱良 | Spraying cleaner |
EP1886733B1 (en) * | 2006-08-11 | 2010-06-02 | Ulrich Simpfendörfer | Cleaning nozzle |
-
2011
- 2011-08-22 CN CN201180072905.4A patent/CN103747879B/en active Active
- 2011-08-22 DK DK11748926.0T patent/DK2747891T3/en active
- 2011-08-22 RU RU2014105868/05A patent/RU2567632C2/en not_active IP Right Cessation
- 2011-08-22 WO PCT/EP2011/064404 patent/WO2013026471A1/en active Application Filing
- 2011-08-22 EP EP11748926.0A patent/EP2747891B1/en active Active
- 2011-08-22 BR BR112013032401A patent/BR112013032401A2/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2013026471A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105327805A (en) * | 2015-11-20 | 2016-02-17 | 国家电网公司 | Deicing machine for transformer |
Also Published As
Publication number | Publication date |
---|---|
RU2014105868A (en) | 2015-08-27 |
DK2747891T3 (en) | 2019-03-18 |
RU2567632C2 (en) | 2015-11-10 |
CN103747879A (en) | 2014-04-23 |
EP2747891B1 (en) | 2018-12-19 |
BR112013032401A2 (en) | 2017-01-17 |
WO2013026471A1 (en) | 2013-02-28 |
CN103747879B (en) | 2017-07-18 |
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