EP4298361A1 - Dispositif d'entraînement d'appareil de nettoyage à haute pression - Google Patents

Dispositif d'entraînement d'appareil de nettoyage à haute pression

Info

Publication number
EP4298361A1
EP4298361A1 EP22702705.9A EP22702705A EP4298361A1 EP 4298361 A1 EP4298361 A1 EP 4298361A1 EP 22702705 A EP22702705 A EP 22702705A EP 4298361 A1 EP4298361 A1 EP 4298361A1
Authority
EP
European Patent Office
Prior art keywords
drive device
motor flange
swash
oil housing
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.)
Pending
Application number
EP22702705.9A
Other languages
German (de)
English (en)
Inventor
Wolfgang Müller
Thomas Maier
Robert Nathan
Manuel KERKOW
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP4298361A1 publication Critical patent/EP4298361A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H23/00—Wobble-plate gearings; Oblique-crank gearings
    • F16H23/10—Wobble-plate gearings; Oblique-crank gearings with rotary wobble-plates with plane surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • F16H37/124—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types for interconverting rotary motion and reciprocating motion
    • 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
    • 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
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • 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
    • 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
    • F04B1/145—Housings
    • 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
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0486—Gearings with gears having orbital motion with fixed gear ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0223—Electric motor pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0294—Wobbling swash plates for high pressure cleaners
    • 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
    • F04B1/128—Driving means
    • 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
    • F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
    • F04B19/04—Pumps for special use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/10—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2235/00—Cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/42—Pumps with cylinders or pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts

Definitions

  • the invention relates to a drive device for a high-pressure cleaning device, with a motor, the motor shaft of which is rotatably mounted on a motor flange and is coupled to a swash plate arrangement via a planetary gear, the planetary gear having a sun wheel which is non-rotatably connected to the motor shaft and which can be rotated on a planet carrier gela siege planetary gears meshes, which reached into an internally toothed ring gear in a, and wherein the swash plate assembly is positioned in an oil housing.
  • the piston pump of a high-pressure cleaning device can be driven by means of such a drive device.
  • the swash plate arrangement translates the rotary motion of the motor shaft into a reciprocating motion of the pistons of the piston pump.
  • the motor shaft defines a longitudinal axis of the drive device and the pistons can lie against a contact surface of the swash plate arrangement which is oriented obliquely to the longitudinal axis.
  • Piston pumps of this type are known to those skilled in the art.
  • the swash disk arrangement is coupled via a planetary gear to the motor shaft; it can be connected, for example, to a planetary carrier on which several, preferably two or three, planetary gears are rotatably mounted.
  • the planet gears are connected on the one hand to a sun gear which is non-rotatably connected to the motor shaft and on the other hand to an internally toothed ring gear surrounding the planet gears.
  • a drive device of the type mentioned above is known from WO 2009/083154 A2 and from DE 10 2005 009 311 A1.
  • drive devices are also known to those skilled in the art from US 2004/0016821 A1.
  • the object of the present invention is to further develop a drive device of the type mentioned at the outset in such a way that it has a longer service life and allows a larger selection of materials during manufacture.
  • this object is achieved according to the invention in that the motor flange and the oil housing form separate components, the motor flange having the ring gear and the oil housing being fixed to the motor flange, the motor flange forming a center for the oil housing.
  • the motor flange and the oil housing form separate components, with the oil housing being fixed to the motor flange, which forms a center for the oil housing, i.e. the motor flange centers the oil housing.
  • Different materials can be used to manufacture the motor flange and the oil housing, for example aluminum, die-cast or plastic materials.
  • the thermal properties of the drive device can be easily adapted to different performance classes of the high-pressure cleaning device by using different material pairings.
  • the materials used for the oil housing and the motor flange can be optimized with regard to a longer service life of the drive device.
  • the assembly of the oil housing on the motor flange is very simple, since the motor flange forms a center for the oil housing. With the help of the motor flange, the oil housing can be centered in a simple manner relative to the longitudinal axis of the drive device.
  • the oil housing is positively connected to the motor flange.
  • the motor flange and the oil housing have interlocking form-fitting elements. This makes it easier to mount the oil housing on the engine flange.
  • the motor flange has an annular groove and the oil housing has a collar, with the collar fitting precisely into the annular groove.
  • the oil housing can be fixed to the motor flange with at least one sealing ring interposed.
  • the sealing ring prevents oil from escaping in the area between the oil housing and the motor flange.
  • the swash plate arrangement has a swash body, with a front bearing ring being arranged on the front side of the swash body facing away from the motor flange, on which a thrust washer is supported via front rolling elements, and on the rear side facing the motor flange of the swash body, a rear bearing ring is held, which is supported via rear rolling elements on a support ring held on the oil housing.
  • the thrust washer is oriented obliquely to the longitudinal axis of the drive device and forms a contact surface for the piston pump piston of the high-pressure cleaning device.
  • the pistons can be resiliently prestressed in the direction of the contact surface, so that when the wobble body rotates about the longitudinal axis of the drive device, they are driven in a reciprocating motion parallel to the longitudinal axis.
  • the thrust washer is supported via front rolling elements on the front bearing ring, which is supported by ist swash body, at the front of the front bearing ring is arranged.
  • the swash body in turn is supported in the axial direction via the rear bearing ring and the rear rolling elements on the support ring, which in turn is supported by the oil housing.
  • Such a design gives the swash plate assembly a high mechanical resilience and extends the service life of the drive device.
  • the swash body has at least one front centering element and at least one rear centering element, with the at least one front centering element centers the front bearing ring and wherein the at least one rear centering element centers the rear bearing ring.
  • the at least one front centering element preferably reaches through the front of the bearing ring.
  • the thrust washer is ring-shaped and at least one front centering element penetrates the thrust washer. In such a configuration, it allows at least one front centering element to center and guide not only the front bearing ring but also the thrust washer.
  • At least one rear centering element passes through the rear bearing ring.
  • front bearing ring is pressed onto the at least one front centering element and/or if the rear bearing ring is pressed onto the at least one rear centering element.
  • the swash body has a front centering element which forms a cylindrical sleeve which protrudes from a base part of the swash body on the side facing away from the motor flange and whose central axis is inclined to the longitudinal axis of the drive device.
  • the swash body has a rear centering element which forms a cylindrical collar which protrudes from the base part of the swash body on the side facing the motor flange and which is aligned coaxially with the longitudinal axis of the drive device.
  • the swash body has a projection which at least partially surrounds the front bearing ring and preferably also the thrust washer in the circumferential direction.
  • the projection preferably protrudes from the base part of the wobble body on the side facing away from the motor flange.
  • the projection can, for example, be designed as a collar-shaped ring segment which is aligned coaxially with the central axis of the cylindrical sleeve and extends in the circumferential direction over a portion of the front bearing ring and preferably also the thrust washer.
  • the projection preferably extends over an angular range of approximately 90° to 150°, in particular 120°.
  • the base part is preferably designed as a base plate.
  • the oil housing forms a receptacle into which the support ring dips, with the receptacle supporting the support ring in the axial and radial directions.
  • the receptacle preferably has a cylindrical lateral surface and a flat bottom surface, the lateral surface surrounding the support ring in the circumferential direction and being aligned coaxially to the longitudinal axis of the drive device, and the bottom surface being positioned in a plane perpendicular to the longitudinal axis of the drive device.
  • the lateral surface supports the support ring in the radial direction and the bottom surface supports the support ring in the axial direction.
  • the support ring is preferably pressed or inserted into the receptacle.
  • the swash body is advantageously non-rotatably connected to the planet carrier.
  • the swash body is positively connected to the planet carrier. Provision can be made, for example, for the swash body to have a non-circular opening into which a connecting section of the planet carrier designed to complement the opening dips.
  • the non-circular opening is preferably designed in the shape of a star or profile, in particular in the shape of a polygon.
  • the swash body has a hollow cone aligned coaxially with the longitudinal axis of the drive device and into which a connecting section of the planet carrier designed to complement the hollow cone dips.
  • the hollow cone of the wobble body in combination with the complementary configuration of the connec tion section of the planet carrier, enables the planet carrier to be centered coaxially to the longitudinal axis of the drive device, ie coaxially to the motor shaft.
  • the planetary carrier preferably has a hollow shaft which extends through the wobble body. Oil in the oil housing can reach the planetary gear unit from the front side of the swash body facing away from the motor flange via the hollow shaft.
  • the hollow shaft protrudes from the wobble body in the direction away from the motor flange.
  • the hollow shaft forms an oil delivery pipe in such an embodiment of the invention, which can dip into an oil sump when the drive device is operated with the longitudinal axis aligned essentially vertically, with the oil housing being arranged below the motor. Oil can be conveyed from the oil sump to the planetary gear via the oil conveying pipe.
  • the swash body has at least one through-opening that forms a flow path for oil, so that oil can flow from the front side of the swash body facing away from the motor flange to the back side of the swash body facing the motor flange.
  • the oil can reach the rear bearing ring, the rear rolling elements and the support ring from the front side of the swash body via the at least one passage opening.
  • the wobble body is favorably fixed axially on the planet carrier.
  • the axial fixation can take place, for example, with the aid of a retaining ring, a spring or a toothed washer or, for example, with the aid of a bolt.
  • FIG. 1 shows a schematic sectional view of a drive device for a high-pressure cleaning device
  • FIG. 2 an enlarged sectional view of detail X from FIG. 1;
  • FIG. 3 an enlarged sectional view of detail Y from FIG. 2;
  • FIG. 4 a perspective view of a swash plate arrangement of the drive device from FIG. 1;
  • FIG. 5 a perspective representation of the swash plate arrangement from FIG. 4 in the manner of an exploded drawing obliquely from the front;
  • FIG. 6 a perspective representation of the swash plate arrangement from FIG. 3 in the manner of an exploded drawing, obliquely from behind.
  • a preferred embodiment of an inventive Shen drive device for a high-pressure cleaning device is shown schematically.
  • the drive device is given the reference number 10 overall.
  • the piston pump of a high-pressure cleaning device can be driven by means of the drive device 10 .
  • the drive device 10 has an electric motor 12 with a motor shaft 14 which defines a longitudinal axis 16 of the drive device 10 and is rotatably mounted on a motor flange 18 .
  • the motor shaft 14 is coupled to a swash plate arrangement 22 via a planetary gear 20 .
  • the dew disc arrangement 22 forms a flat contact surface 24 inclined to the longitudinal axis 16 .
  • Pistons 26, 28 of the known piston pump of the high-pressure cleaning device can rest against the contact surface 24.
  • the pistons 26, 28 can be resiliently pretensioned in the direction of the contact surface 24. Due to the wobbling movement of the contact surface 24, the pistons 26, 28 are moved back and forth parallel to the longitudinal axis 16.
  • the motor flange 18 has the swash plate arrangement 22 facing a recess 30 with a cylindrical peripheral wall 32, which forms an internally toothed ring gear 34.
  • the motor shaft 14 protrudes with an Endab section 35 into the recess 30 and rotatably carries a central sun wheel 36 of the planetary gear 20, which meshes with several planetary gears, with two planetary gears 38, 40 in Figures 1 and 2 can be seen.
  • the planet gears 38, 40 are on the one hand with the sun gear 36 and on the other hand with the coaxially aligned to the sun gear 30, internally toothed ring gear 34 engaged.
  • the planet gears 38, 40 are each held rotatably on a supporting pin 42.
  • the identically configured supporting pins 42 form part of a planet carrier 46 of the planetary gear 20, and they are connected in one piece to a hollow shaft 48 of the planet carrier 46, which is aligned coaxially with the longitudinal axis 16.
  • the hollow shaft 48 passes through the swash plate arrangement tion 22 and protrudes with a tubular end portion 50 in the motor flange 18 facing away from the swash plate assembly 22 direction.
  • the swash plate assembly 22 is surrounded in the circumferential direction by an oil housing 52, which, with a collar 54 designed as a first form-fitting element 56, dips into a second form-fitting element 60, designed as an annular groove 58, of the motor flange 18 with a precise fit.
  • the annular groove 58 forms a centering of the oil housing 52 in relation to the longitudinal axis 16 of the drive device 10.
  • the oil housing 52 has a cylindrical annular wall 62, the disk assembly 22 surrounds the swash in the circumferential direction and a radially inward shoulder 64 in the collar 54 merges.
  • the shoulder 64 in combination with a section of the annular wall 62 directly adjoining the shoulder 64 , forms a receptacle 66 of the oil housing 52 .
  • the motor flange 18 facing away from the side of the shoulder 64 forms a flat Bodenflä surface 68 of the receptacle 66 and immediately adjoining the shoulder 64 portion of the annular wall 62 forms a cylindrical jacket surface 70 of the receptacle 66 from.
  • the swash plate arrangement 22 has a swash body 72 which has a base part 74 in the form of a base plate 76 .
  • the base plate 76 has a non-circular opening 78 .
  • the opening 78 is therefore not designed in a circular manner.
  • the opening 78 is star-shaped. This becomes clear from FIG.
  • the opening 78 is followed by a hollow cone 80, aligned coaxially with the longitudinal axis 16, of the rope body 72, which carries a securing element in the form of a spring washer 84 on its end face 82 facing away from the motor flange 18.
  • the spring washer 84 interacts with the tubular end portion 50 of the planet carrier 46, so that the swash body 72 is fixed axially by means of the spring washer 84 on the planet carrier 46.
  • the planetary carrier 46 With its hollow shaft 48, the planetary carrier 46 passes through the opening 78 and the hollow cone 80, with a first connecting section 86 of the hollow shaft 48 designed to complement the opening 78 passing through the opening 78 with a precise fit and a second connecting section 87 designed to complement the hollow cone 80 with a precise fit through the hollow cone 80 cracks down.
  • the first connec tion section 86 has a star-shaped outer contour and the second connec tion section 87 has a conical outer contour. This becomes particularly clear from FIGS.
  • the first connection portion 86 and the opening 78 of the swash body 72 is rotatably connected to the planet carrier 46.
  • the second connecting section 87 in combination with the hollow cone 80, centers the planet carrier 46 in relation to the longitudinal axis 16 of the drive device 10.
  • a front bearing ring 88 is arranged on the front side 73 of the swash body 72 facing away from the motor flange 18 .
  • the front bearing ring 88 is flat and inclined to the longitudinal axis 16 .
  • On the front bearing ring 88 is supported an annular, parallel to the front bearing ring 88 aligned pressure disc 90 via front rolling elements 92 from.
  • the thrust washer 90 forms the above-mentioned contact surface 24 on which the pistons 26, 28 rest.
  • the front rolling elements 92 are arranged in a rolling element cage 94, which is positioned between the front bearing ring 88 and the thrust washer 90 and which, like the front bearing ring 88 and the thrust washer 90, is penetrated by a front centering element 98 designed as a cylindrical sleeve 96.
  • the sleeve 96 protrudes from the base plate 76 on the side facing away from the motor flange 18 , the central axis 100 of the sleeve 96 being inclined relative to the longitudinal axis 16 .
  • the front bearing ring 88, the thrust washer 90 and the rolling element cage 94 are centered with respect to the central axis 100.
  • a projection 99 in the form of a collar-shaped ring segment 101 is arranged on the side of the base plate 76 facing away from the motor flange 18 at a radial distance from the sleeve 96 and coaxially with its central axis 100 90 partially surrounds in the circumferential direction.
  • the projection 101 extends over an angular range of approximately 120° and forms a lateral stop for the bearing ring 88, the rolling element cage 94 and the thrust washer 90.
  • a rear bearing ring 102 is arranged on the rear side 75 of the wobble body 72 facing the motor flange 18 and is supported on a support ring 106 via rear rolling elements 104 .
  • the support ring 106 is taken from the measure 66 on the oil housing 52, which supports the support ring 106 in the axial direction and in the radial direction.
  • the rear bearing ring 102 is penetrated by a rear centering element 110 designed as a cylindrical collar 108 which centers the rear bearing ring 102 on the longitudinal axis 16 .
  • the collar 108 is aligned coaxially with the longitudinal axis 16 and protrudes from the side of the base plate 76 facing the motor flange 18 .
  • the base plate 76 of the swash body 72 has a plurality of passage openings 112 which form a flow path for oil, so that the oil can flow from the front side 73 of the swash body 72 facing away from the motor flange 18 to the rear side 75 of the swash body 72 facing the motor flange 18.
  • Oil can also reach the recess 30 of the motor flange 18 unhindered from the swash body 72 via the hollow shaft 48 of the planet carrier 46, in which the sun gear 36, the planet gears 38, 40 and the ring gear 34 are arranged.
  • the oil case 52 is preferably made of an aluminum material, a die-casting material, particularly zinc die-casting, or a plastic material.
  • the motor flange 18 is preferably made of metal or a plastic material, and the swash body 72 is preferably also made of an aluminum material, a die-cast material, in particular die-cast zinc, or a plastic material.
  • the design of the oil housing 52 and the motor flange 18 as separate components makes it possible to manufacture these components from different materials.
  • the oil housing 52 can consist of different materials depending on the performance class of the high-pressure cleaning device.
  • the swash body 72 is fixed axially on the planetary carrier 46 with the aid of the spring washer 84 .
  • other securing elements can also be used, in particular a bolt or a securing ring.
  • the rope body 72 is screwed to the planetary carrier 46 .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Hydraulic Motors (AREA)
  • General Details Of Gearings (AREA)
  • Retarders (AREA)

Abstract

L'invention concerne un dispositif d'entraînement (10) destiné à un appareil de nettoyage à haute pression, comprenant un moteur (12) dont l'arbre de moteur (14) est monté avec liberté de rotation sur une bride de moteur (18) et accouplé à un agencement à plateau oscillant (22) par l'intermédiaire d'un train planétaire (20), le train planétaire (20) comportant une roue solaire (36) reliée fixement à l'arbre de moteur (14) et avec liberté de rotation autour de ce dernier, laquelle roue solaire s'engrenant avec des roues planétaires (38, 40) montées pour pouvoir tourner sur un porte-satellites (46) et venant en prise avec une roue creuse à denture interne (34), tandis que l'agencement à plateau oscillant (22) est positionné dans un carter d'huile (52). Pour perfectionner le dispositif d'entraînement (10) pour qu'il présente une durée de vie prolongée et permette une sélection étendue de matériaux lors de la fabrication, on propose selon l'invention que la bride de moteur (18) et le logement d'huile (52) soient des éléments séparés. La bride de moteur (18) comprend la roue creuse (34) et le carter d'huile (52) est fixé à la bride de moteur (18), laquelle forme un centrage pour le carter d'huile (52).
EP22702705.9A 2021-02-25 2022-01-28 Dispositif d'entraînement d'appareil de nettoyage à haute pression Pending EP4298361A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021104570.3A DE102021104570A1 (de) 2021-02-25 2021-02-25 Antriebsvorrichtung für ein hochdruckreinigungsgerät
PCT/EP2022/052082 WO2022179798A1 (fr) 2021-02-25 2022-01-28 Dispositif d'entraînement d'appareil de nettoyage à haute pression

Publications (1)

Publication Number Publication Date
EP4298361A1 true EP4298361A1 (fr) 2024-01-03

Family

ID=80218315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22702705.9A Pending EP4298361A1 (fr) 2021-02-25 2022-01-28 Dispositif d'entraînement d'appareil de nettoyage à haute pression

Country Status (5)

Country Link
US (1) US20230400088A1 (fr)
EP (1) EP4298361A1 (fr)
CN (1) CN116670411A (fr)
DE (1) DE102021104570A1 (fr)
WO (1) WO2022179798A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29604364U1 (de) 1996-03-09 1997-07-10 Alfred Kärcher GmbH & Co, 71364 Winnenden Hochdruckreinigungsgerät
DE29811966U1 (de) 1998-07-04 1998-10-29 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Taumelscheibenpumpe
DE29813978U1 (de) * 1998-08-05 1998-10-01 Kaercher Gmbh & Co Alfred Motorpumpeneinheit für ein Hochdruckreinigungsgerät
ITRE20020023U1 (it) 2002-07-25 2004-01-26 Annovi Reverberi Spa Dispositivo per la lavorazione della pressione del fluido erogato da una idropulitrice
DE102005009311A1 (de) 2005-02-21 2006-08-24 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
DE102007006284A1 (de) 2007-02-01 2008-08-07 Alfred Kärcher Gmbh & Co. Kg Motorpumpeneinheit für ein Hochdruckreinigungsgerät
DE102007063541A1 (de) 2007-12-21 2009-07-02 Alfred Kärcher Gmbh & Co. Kg Antriebsvorrichtung für Hochdruckreinigungsgerät
DE102008028798A1 (de) * 2008-06-17 2009-12-24 Schaeffler Kg Taumelkörper für ein Taumelscheibengetriebe und Taumelscheibengetriebe
DE202012009130U1 (de) 2012-09-24 2013-09-26 Josef Kränzle GmbH & Co. KG Kolbenpumpe für ein Hochdruckreinigungsgerät
CN104776004B (zh) 2015-04-21 2016-08-24 黄小良 高压无气喷涂机柱塞泵

Also Published As

Publication number Publication date
WO2022179798A1 (fr) 2022-09-01
DE102021104570A1 (de) 2022-08-25
US20230400088A1 (en) 2023-12-14
CN116670411A (zh) 2023-08-29

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