EP3517226A2 - Cleaning device - Google Patents

Abstract

The invention relates to a cleaning device (1) for cleaning with a cleaning liquid (F), in particular for cleaning hollow bodies, comprising a tubular section (3), a cleaning head (2) rotatable about a first rotation axis (Z) on a cleaning head end region of the tubular section (3), at least one spray arm (5) rotatable about an at least substantially perpendicular to the first axis of rotation (Z) aligned rotary axis (X) on the cleaning head (2), a drive device (6) for driving the cleaning head (2) and the spray arm (5) at a driving end portion of the tubular portion (3) opposite to the cleaning head end portion and a cleaning liquid (24) for the cleaning liquid (F) passing through the tubular portion (3). According to the invention, the cleaning liquid pipe (24) also passes through the cleaning head (2) and the spray arm (5) through and mü In at least one outlet opening (25), wherein the cleaning fluid line (24) is formed liquid-tight with respect to a cleaning device interior and wherein all cleaning device components outside the cleaning fluid line (24) are arranged.

Description

The invention relates to a cleaning device according to the features of the preamble of claim 1.

From the prior art, as in the DE 10 2012 011 788 A1 described a cleaning device and a method for cleaning hollow bodies. The cleaning device for cleaning hollow bodies, for example of containers or the like, with cleaning liquid comprises a drive shaft, which is rotationally drivable by means of a main drive. On the drive shaft, a nozzle carrier of a cleaning head is arranged rotationally fixed. On the nozzle carrier, a nozzle unit is rotatably mounted with at least one nozzle. The nozzle carrier is rotatably mounted on a bearing tube. The bearing tube is coupled by gear means with the nozzle unit such that a caused by the drive shaft relative rotational movement of the nozzle carrier relative to the bearing tube causes a rotational movement of the nozzle unit with respect to the nozzle carrier. There are additional drive means present, by which the bearing tube in turn is rotationally driven such that the rotational speed of the nozzle unit with respect to the nozzle carrier is variable.

The object of the invention is to specify a cleaning device which is improved over the prior art.

The object is achieved by a cleaning device with the features of claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

A cleaning device for cleaning with a cleaning liquid, in particular for cleaning, in particular internal cleaning, of hollow bodies, comprises a tubular section, at least one cleaning head rotatable about a first axis of rotation on a cleaning head end region of the tubular section, a spray arm which is at least substantially perpendicular to the first Rotary axis aligned second axis of rotation is rotatably mounted on the cleaning head, a drive device for driving the cleaning head and the spray arm at a cleaning head end region opposite drive end of the tubular portion and a cleaning liquid line for the cleaning liquid, which passes through the tubular portion.

According to the invention, the cleaning fluid line also passes through the cleaning head and the spray arm and opens into at least one outlet opening, wherein the cleaning fluid line is designed to be liquid-tight with respect to a cleaning device interior. Advantageously, all cleaning device components are arranged outside the cleaning fluid line.

The cleaning fluid line is thus formed as a relative to the cleaning device interior completely closed line, for example tubular, tubular or channel-shaped, for example as a cleaning fluid tube, cleaning fluid tube or cleaning fluid channel. It thus has its own, within the cleaning device completely closed pipe wall. This conduit wall encloses a line interior, which is provided exclusively for the flow through, in particular for the passage of the cleaning liquid. In this line space enclosed by the conduit wall no other cleaning device component is arranged, in particular no drive component, in particular no drive shaft, no transmission component, no transmission, no bearing component and no bearing, ie in particular no required for rotating the cleaning head and / or the spray arm and in particular for this self-moving component.

From the prior art it is known to direct the cleaning fluid through the tubular portion, the cleaning head and the spray arm in such a way that drive components required for driving the rotary motion of the cleaning head and the spray arm, for example shafts, axles, gears or gear parts, in particular gears and / or worms, and / or bearings or bearing parts, are washed by the cleaning fluid. For example, the cleaning fluid is used to lubricate these parts, such as gears and bearings. For this purpose, the cleaning device interior or essential areas of the cleaning device interior, in which these cleaning device components are arranged, are flooded with the cleaning liquid.

This flow around such cleaning device components, in particular of transmission parts, is avoided by the solution according to the invention, since a liquid flow of the cleaning liquid through the cleaning device is carried out by encapsulated. This avoids that a wear-related abrasion is flushed out of the gear parts by the cleaning liquid from the cleaning device and thus enters together with the cleaning liquid in the hollow body to be cleaned and dirty, for example, a product subsequently filled therein.

Furthermore, the solution according to the invention achieves, at least substantially, a constant flow cross-section of the cleaning fluid line, as a result of which pressure losses are reduced. In addition, a swirling of the cleaning liquid and a resulting flow disturbance is arranged in the cleaning liquid line and in particular moving therein Cleaning device components avoided because in the inventive solution no such cleaning device components are present in the cleaning fluid line.

In addition, there is the danger in the above-described flushing of said cleaning device components with the cleaning liquid in the prior art, the danger that settle by cleaning the hollow body from this remote product residues on these cleaner components, for example in the transmission, creating hygienic risks and also the risk of failure this cleaner components, such as the transmission consists. This danger exists, since the cleaning of hollow bodies, for example tanks, by means of the cleaning device usually takes place in the circulation, d. H. There is no lost cleaning, but the cleaning liquid is reused. Since built-in filters do not filter out all product residues from the cleaning liquid, they return to the circulation, whereby the described risk of contamination exists in cleaning devices known from the prior art. This is also avoided by the solution according to the invention, since contact of the cleaning liquid with these cleaning device components is avoided here.

In particular, the cleaning fluid line runs completely through the tubular section, ie from the drive end area to the cleaning head end area. Thus, it enters the drive end portion in the axial direction of the tubular portion, and the end portion of the cleaning head in the axial direction of the tubular portion thereof. As a result, in particular a lateral, ie radially to the tubular portion, extending entry of the cleaning liquid line in the tubular portion and an associated crossing in the tubular portion of rotating components or entry into these rotating components, for example, associated with elaborate sealing measures avoided.

In one embodiment, the tubular section, the cleaning head and the at least one spray arm, with the exception of the at least one outlet opening, are closed in a liquid-tight manner with respect to an external environment. Thus, in particular the cleaning device interior is liquid-tightly sealed against the external environment. The above-described encapsulated embodiment of the cleaning fluid line prevents the penetration of the cleaning fluid and, for example, contaminants removed from the hollow body to be cleaned into the cleaning device interior. Due to the liquid-tight closed design of the tubular portion, the cleaning head and the at least one spray arm with the exception of the at least one outlet opening to the outside environment and the penetration of sprayed by the cleaning device cleaning liquid and, for example, removed from the hollow body to be cleaned contaminants from the outside, from the external environment of the cleaning device, avoided in the cleaner interior. As a result, the contamination and the resulting risk of failure of cleaning device components, in particular transmission and / or bearing components, required in particular for the rotational movement of the cleaning head and the spray arm are avoided. This is achieved in particular in that the cleaning device interior in the manner described outwardly, d. H. sealed liquid-tight against the external environment and thus formed encapsulated.

Conveniently, therefore, all required for the rotational movement of the cleaning head and the at least one Sprüharms cleaning device components, in particular gear and / or bearing components, such as bearings and / or gears, within this relative to the external environment liquid-tight closure of the tubular portion, the cleaning head and the at least one Sprüharms and thus especially within the opposite to the outer Environment liquid-tightly sealed and thus advantageously encapsulated trained cleaning device interior are arranged.

In one embodiment, the cleaning device comprises two mutually independent, in particular completely independent, drive arrangements, d. H. a drive arrangement for driving the cleaning head and a further drive arrangement for driving the spray arm. In particular, the two drive arrangements each comprise a drive unit, in particular in each case a drive motor. As a result, the rotational movements of the cleaning head and the spray arm can be carried out independently of one another; in particular, rotational speeds of the cleaning head and the spray arm can be adjusted independently of one another, in particular independently controlled and / or regulated. In particular, the rotational movements of the cleaning head and at least one spray arm can be carried out independently of one another such that they do not influence one another. The respective drive unit is designed in particular as an electrical, pneumatic and / or hydraulic drive unit. In particular, the respective drive unit designed as a drive motor is designed as an electric motor. In other embodiments, the respective drive unit designed as a drive motor may be designed, for example, as a pneumatic motor or hydraulic motor. In other exemplary embodiments, the respective drive unit can be designed, for example, as a turbine, in particular as a hydraulically operated turbine and thus as a hydraulic drive unit designed as a turbine. The two drive units can be identical or different.

The cleaning device thus allows independently controllable and / or controllable rotational movements about two axes of rotation, in particular about the vertical first axis of rotation and the horizontal second axis of rotation. In known from the prior art cleaning devices is a forced coupling between the rotational movement of the cleaning head and the Rotational movement of the spray arm before. This results in fixed predetermined cleaning paths, which describes a jet of sprayed from the spray arm cleaning fluid. By driving the cleaning head and the spray arm independently of each other, on the contrary, a needs-based and / or adaptive cleaning is made possible.

For example, the hollow body to be cleaned has areas that need to be cleaned more intensively, for example areas in which product residues are increasingly deposited, and / or agitators, nozzles, manholes and / or other openings in whose area a surface shape makes cleaning more difficult, and / or or areas where sensors are located. By driving the cleaning head and the spray arm independently of one another, the cleaning head and the spray arm can be rotated in such a way that the jet of the cleaning liquid sprayed by the spray arm is directed towards these areas, because the jet of cleaning liquid can be directed to any point on a surface of the hollow body become. In combination with a suitable sensor system is also an adjustment of the cleaning profile during cleaning, d. H. inline, possible, so that an adaptive cleaning is achieved.

Thus, all the areas to be cleaned can be sprayed as required with the cleaning liquid, in contrast to the cleaning devices according to the prior art, which spray all areas evenly. In particular, by the separate drive of cleaning head and spray arm any cleaning tracks can be designed, ie cleaning tracks and cleaning processes are freely parameterized. This is not possible by means of transmission solutions over which the rotation of the cleaning head and the spray arm is forcibly coupled. By the need-based cleaning enabled a time and resource-optimized cleaning is possible and it will be less downtime of plants that comprise the hollow body to be cleaned, achieved.

The drive assemblies and advantageously all components driven by them are advantageously so independent of each other that they do not interfere with each other. In particular, their movements are decoupled from each other. Movements of one of the drive assemblies and their associated movable components thus have no influence on movements of the respective other drive arrangement and the components associated therewith.

In one embodiment, the tubular portion comprises an outer hollow shaft which is coupled to the cleaning head and, in particular via a gear, to the drive unit, in particular the drive motor, for driving the cleaning head. In one embodiment, an inner hollow shaft is arranged in the outer hollow shaft, which, in particular via a sprüharmseitiges gear, with the spray arm and, in particular via a drive motor side gear, with the drive unit, in particular the drive motor is coupled to drive the spray arm. Through the hollow shafts a compact design is achieved and in particular also achieves a drive power transmission in a compact design and with few components. Furthermore, this makes it possible to guide along the cleaning fluid line within the hollow shafts.

The cleaning fluid line therefore advantageously passes through the inner hollow shaft. As already mentioned, the cleaning fluid line has its own conduit wall, ie. H. it runs tubular or tubular inside the hollow shaft, so that the cleaning liquid does not come into contact with the hollow shaft. As a result, deposits are avoided on the Innenholwelle and it is a flow control of the cleaning liquid avoided by the rotation of the hollow shaft.

In one embodiment, a sensor is provided for determining a rotational position of the cleaning head and / or a sensor for determining a rotational position of the spray arm. This will be an exact one Alignment of the beam of the sprayed cleaning liquid allows each to be cleaned inner surface area of the hollow body.

In one embodiment, the tubular portion is formed telescopically, in particular as a telescopic tube assembly of a plurality of axially displaceable relative to each other and advantageously interlocking intermeshing tubular elements. This telescoping is also possible independently of one or more features described above.

For example, both the inner hollow shaft and the outer hollow shaft are formed corresponding telescopically. Alternatively, for example, a flexible shaft or a Teleskopfaltenbalg be provided for the respective torque transmission.

The cleaning liquid line is, in order to enable this telescoping, in the region of telescoping tubular portion, for example, also telescopically formed in the manner described, or it is for example flexible in the axial direction, for example as a flexible hose, the conduit wall stretchable and / or foldable in the axial direction is.

This telescoping allows advantageously, in addition to the two independent rotational movements of cleaning head and spray arm about two axes, a translational movement along an axis, more specifically along the first axis of rotation, ie, a translational movement of the cleaning head with the spray arm axially to the tubular portion and thereby lowering and lifting the cleaning head with the spray arm in the hollow body to be cleaned. This translational movement, ie the telescoping, can for example be done manually and / or by means of a telescopic drive, for example comprising a further drive motor, and thus in particular automatically. The telescopic drive can telescoping the tubular Section, ie for retraction and extension, for example, a rope, a chain, a belt or a spindle.

By telescoping, for example, internals in the hollow body to be cleaned, for example an agitator, can also be specifically cleaned from below by lowering the cleaning head with the spray arm in the hollow body by extending the telescoping tubular section. As a result, an immersion depth of the cleaning head with the spray arm in the hollow body to be cleaned, for example, extendable, at least within the maximum telescopic length of the tubular portion. By telescoping large structures of the cleaning device outside of the hollow body to be cleaned are also avoided.

In one embodiment, the cleaning fluid line comprises at least one self-cleaning line section, which branches off from a main line section of the cleaning fluid line and opens in a further outlet opening on the cleaning head or on the spray arm. For example, a plurality of such self-cleaning line sections are provided which each branch off from the main line section of the cleaning liquid line and open into a respective further outlet opening on the cleaning head or on the spray arm. Alternatively or additionally, one or more such further outlet openings for self-cleaning may also be provided on the main line section, in particular where the main line section runs correspondingly favorably for this purpose, in particular on the spray arm.

As a result, self-cleaning, in particular of the cleaning head, is achieved by spraying and / or flushing an outer side of the cleaning head and / or the spray arm with the cleaning liquid, thereby avoiding adhesion of particles, in particular of dirt particles to be cleaned by the hollow body to be cleaned. For example, such particles do not pass through the cleaning head and / or spray arm Detergent through to their respective outer surface or they are rinsed from this outer surface.

In one embodiment, a baffle plate is arranged on an outer side of the cleaning head in front of the further outlet opening, in particular of the at least one self-cleaning line section, and spaced from this further outlet opening. This baffle plate serves to divert the cleaning liquid emerging from the further outlet opening in the direction of the outer surface of the cleaning head and / or of the spray arm.

In one embodiment, the cleaning device comprises a pressure sensor, for example a pressure measuring cell, for determining a pressure of the cleaning liquid sprayed by the spray arm. This is expediently arranged such that the jet of cleaning liquid impinges on the pressure sensor when the cleaning head and the spray arm are in a corresponding position. The pressure sensor serves in particular as a reference point, in particular for calibration and / or system monitoring. As a result, a pressure with which the cleaning liquid is sprayed can be checked and set and / or changed, for example. Furthermore, a basic position of the cleaning head and the spray arm can be adjusted by means of the pressure sensor in order then to enable an exact setting of a respective position.

The pressure can be checked during cleaning, for example, when the jet of cleaning fluid impinges on the pressure sensor, so that system monitoring during cleaning is enabled, and / or it can be checked at any time by targeted approach of the pressure sensor with the jet of cleaning fluid, for example before the start of cleaning.

The cleaning device is designed, for example, as a cleaning device or cleaning robot, in particular as a so-called Jet cleaner. As already described, the cleaning device is used in particular for cleaning hollow bodies, in particular the cleaning of an interior, in particular an inner wall, of the respective hollow body. Such hollow bodies are for example tanks, containers, containers, machines or plants.

The cleaning device has in particular a simple and robust construction. This construction, in particular described above, is freely scalable, for example by designing the tubular section with the described components and / or the cleaning head and / or the spray arm smaller or larger, so that the cleaning device can be easily adapted to any application. Changes in the functionality described above are not required for this purpose, d. H. in particular, only changed dimensions of the respective components are required. As a result of the construction described above, in particular the drive units designed, for example, as drive motors can be arranged fixedly on the cleaning device, so that no rotary feedthroughs, for example slip rings, are required.

In one embodiment, the spray arm is curved in such a way that its outer mold facing the cleaning head is adapted to an outer shape of, for example, at least substantially spherical cleaning head, the spray arm resting against the cleaning head over its entire length or being only slightly spaced so as to rotate the spray arm without grinding on the cleaning head to allow. As a result of this guidance of the spray arm close to the cleaning head, a particularly small imbalance is achieved during the rotation of the cleaning head and the rotation of the spray arm. Furthermore, an alignment of the jet of the cleaning liquid is thereby also made possible on regions of the hollow body which are to be cleaned directly under and above the cleaning head, whereby, for example, a region around an opening through which the hollow body can be cleaned Cleaning device is inserted into the hollow body, and / or a lower discharge region of the hollow body can be cleaned.

In one embodiment, the cleaning device comprises at least two or more than two rotatable spray arms. In this case, the spray arms, in particular in the case of two spray arms, can be rotatable about the second rotation axis aligned at least essentially perpendicular to the first rotation axis, ie. H. be located opposite to the cleaning head, or different spray arms can be aligned differently, d. H. be rotatable at an angle to each other, each aligned at least substantially perpendicular to the first axis of rotation second rotational axes.

It can be provided that the two spray arms or all spray arms can be driven by the same drive arrangement, d. H. it is then only provided a drive arrangement for driving the spray arms, with which all spray arms are coupled. Alternatively it can be provided that a plurality of drive arrangements are provided for the spray arms, wherein in each case one or more of the spray arms are coupled to the respective drive arrangement. These several drive arrangements of the spray arms are advantageously independent of each other, in particular completely independent, so that they each only influence the movement of the spray arm or the spray arms, with which they are coupled. This allows a movement of several spray arms independently.

Thus, if the cleaning device has two spray arms, it can thus be provided, for example, that the cleaning device has three independent, especially completely independent, drive arrangements for driving the cleaning head and for driving the two spray arms, which in particular each have a drive unit, in particular one drive motor each , ie, a drive arrangement for driving the cleaning head and a further drive arrangement for driving the respective spray arm. The three In particular, drive assemblies each comprise a drive unit, in particular in each case a drive motor. As a result, the rotational movements of the cleaning head and the respective spray arm can be carried out independently of one another; in particular, rotational speeds of the cleaning head and the respective spray arm can be adjusted independently of one another, in particular independently controlled and / or regulated. In particular, the rotational movements of cleaning head and respective spray arm can be carried out independently of each other so that they do not influence each other. The respective drive unit is designed in particular as an electrical, pneumatic and / or hydraulic drive unit. In particular, the respective drive unit designed as a drive motor is designed as an electric motor. In other embodiments, the respective drive unit designed as a drive motor may be designed, for example, as a pneumatic motor or hydraulic motor. In other exemplary embodiments, the respective drive unit can be designed, for example, as a turbine, in particular as a hydraulically operated turbine and thus as a hydraulic drive unit designed as a turbine. The drive units may be the same or different. Accordingly, with more than two spray arms, more than two drive arrangements, in particular with one drive unit each, can be provided for the spray arms, wherein the respective drive arrangement can be coupled to one or more of the spray arms.

In one embodiment, it is provided that the tubular portion comprises at least one intermediate hollow shaft, which is arranged between the outer hollow shaft and the inner hollow shaft. It can also be provided a plurality of such intermediate hollow shafts, which are then arranged coaxially with each other between the outer hollow shaft and the inner hollow shaft, ie, the intermediate hollow shafts are arranged inside each other and in the outer hollow shaft and the inner hollow shaft is disposed in the innermost intermediate hollow shaft. This makes it possible, for example, several spray arms on different hollow shafts with different drive arrangements and / or To couple drive units, for example via the hollow shaft and the at least one intermediate hollow shaft or a plurality of intermediate hollow shafts, wherein the hollow shaft and the respective intermediate hollow shaft may be coupled to one or more spray arms. Thus, it can be provided, for example, that the at least one intermediate hollow shaft and the inner hollow shaft, in particular via a respective sprüharmseitiges gear, with different spray arms and, in particular via a respective drive motor side gear, are coupled to different particular designed as a drive motor drive units for driving the respective spray arm.

In one embodiment, the cleaning device has a plurality of cleaning liquid lines for a respective cleaning liquid, which respectively pass through the tubular section, through the cleaning head and through at least one spray arm and open in at least one outlet opening, wherein the respective cleaning liquid line is liquid-tight with respect to the cleaning device interior and wherein all cleaning device components are arranged outside the respective cleaning fluid line. It can be provided that the cleaning liquid lines are each assigned to different spray arms, d. H. one or more spray arms for each cleaning fluid line, or that one or more of the cleaning fluid lines are associated with the same spray arm or spray arms, for example by means of valves. The cleaning liquid may be the same for all cleaning liquid lines or the different cleaning liquid lines are advantageously provided for different cleaning liquids. As a result, various cleaning liquids can be conveyed without mixing them, for example foam, lye, acid, ultrapure water.

In more than two hollow shafts, ie when the at least one intermediate shaft is provided or a plurality of such intermediate shafts are provided, can Cavities between each two of these hollow shafts are used to guide these cleaning fluid lines, d. h, as an alternative or in addition to guiding one of the cleaning fluid lines through the inner hollow shaft, one or more of the cleaning fluid conduits may be arranged between the inner hollow shaft and the intermediate hollow shaft, between two intermediate hollow shafts and / or between the intermediate hollow shaft and the outer hollow shaft. Even if no intermediate hollow shaft is provided, a plurality of cleaning fluid lines may be provided, in which case for the arrangement of one or more of the cleaning fluid lines, for example, the cavity between the inner hollow shaft and the outer hollow shaft may be used.

In a method for cleaning a hollow body, in particular an inner space, in particular an inner wall, of the hollow body by means of the cleaning device, the tubular section with the cleaning head is introduced into the hollow body to be cleaned and the cleaning liquid is sprayed via the spray arm. In this case, advantageously, the spray arm and / or the cleaning head are rotated about their respective axis of rotation.

Advantageously, the spray arm and the cleaning head are driven separately, wherein advantageously a respective rotation speed is predetermined separately, in particular controlled and / or regulated. For example, cleaning paths are given and the two drive arrangements, in particular the two drive units designed for example as drive motors, are each controlled and / or regulated in such a way that the jet of cleaning liquid sprayed by the spray arm moves along these predetermined cleaning paths on an inner surface of the hollow body to be cleaned.

For example, in addition to the self-cleaning is performed by the cleaning fluid also passed through the or the self-cleaning sections and is discharged via the respective further outlet opening and / or from the main line section directly through the respective further outlet opening. If a baffle plate is arranged in front of the respective further outlet opening, the cleaning liquid is thereby diverted in the direction of the outside of the cleaning head in order to flush around and clean it and / or to keep particles away from the cleaning head.

If the described telescoping capability is provided, then the cleaning head, in particular before and / or during the cleaning, in a predetermined manner along its axis of rotation, d. H. along the particular vertical first axis of rotation to be moved laterally, in particular lowered or raised. This can be done automatically, for example, in particular during cleaning, in order thereby to achieve a further degree of freedom in the cleaning, in particular for the shutdown of the cleaning tracks. Alternatively or additionally, this telescoping can also be done manually. By means of the sensors, a respective rotational position of the cleaning head and the spray arm can be determined. By means of the pressure sensor, a pressure of the spray of the sprayed cleaning agent can be determined, for example, before, during and / or after cleaning.

Instead of the cleaning liquid may be used in the cleaning device and in the method of cleaning, for example, a cleaning fluid, which then instead of the liquid tightness described above, there is a fluid tightness.

Embodiments of the invention are explained in more detail below with reference to drawings.

Figur 1

schematisch eine Seitenansicht einer Reinigungsvorrichtung,

Figur 2

schematisch eine Längsschnittdarstellung der Reinigungsvorrichtung entlang der Schnittebene II-II in Figur 1,

Figur 3

schematisch eine Detaildarstellung des Bereichs III in Figur 2,

Figur 4

schematisch ein oberer Bereich der Reinigungsvorrichtung,

Figur 5

schematisch eine perspektivische Längsschnittdarstellung eines Reinigungskopfes der Reinigungsvorrichtung,

Figur 6

schematisch eine perspektivische Darstellung eines Getriebes im Reinigungskopf,

Figur 7

schematisch eine Längsschnittdarstellung des Reinigungskopfes,

Figur 8

schematisch eine Längsschnittdarstellung einer weiteren Ausführungsform des Reinigungskopfes,

Figur 9

schematisch eine Längsschnittdarstellung einer weiteren Ausführungsform des Reinigungskopfes,

Figur 10

schematisch eine perspektivische Darstellung einer weiteren Ausführungsform der Reinigungsvorrichtung in einem eingezogenen Zustand des Reinigungskopfes,

Figur 11

schematisch eine perspektivische Darstellung der Ausführungsform der Reinigungsvorrichtung gemäß Figur 10 in einem ausgefahrenen Zustand des Reinigungskopfes, und

Figur 12

schematisch eine Längsschnittdarstellung einer weiteren Ausführungsform der Reinigungsvorrichtung.

Show:

FIG. 1

schematically a side view of a cleaning device,

FIG. 2

schematically a longitudinal sectional view of the cleaning device along the cutting plane II-II in FIG. 1 .

FIG. 3

schematically a detailed representation of the area III in FIG. 2 .

FIG. 4

schematically an upper portion of the cleaning device,

FIG. 5

1 is a schematic longitudinal sectional view of a cleaning head of the cleaning device;

FIG. 6

schematically a perspective view of a transmission in the cleaning head,

FIG. 7

schematically a longitudinal sectional view of the cleaning head,

FIG. 8

FIG. 2 is a schematic longitudinal sectional view of another embodiment of the cleaning head; FIG.

FIG. 9

FIG. 2 is a schematic longitudinal sectional view of another embodiment of the cleaning head; FIG.

FIG. 10

FIG. 2 schematically a perspective view of a further embodiment of the cleaning device in a retracted state of the cleaning head, FIG.

FIG. 11

schematically a perspective view of the embodiment of the cleaning device according to FIG. 10 in an extended state of the cleaning head, and

FIG. 12

schematically a longitudinal sectional view of another embodiment of the cleaning device.

Corresponding parts are provided in all figures with the same reference numerals.

The FIGS. 1 and 2 show a trained example of a cleaning device or cleaning robot cleaning device 1 for cleaning by means of a cleaning fluid F, which can be cleaned by means of this cleaning device 1, in particular hollow body, in particular can be carried out an internal cleaning such hollow body, ie it can be an interior of the hollow body to be cleaned, in particular an inner wall and / or interior parts. The hollow body may be formed, for example, as a container, tank, container, keg, as a plant and / or machine and / or as another hollow body. Such a cleaning device 1 is also referred to as a target jet cleaner. The cleaning device 1 flowing through the cleaning liquid F is in the FIGS. 7 to 9 hatched shown.

The cleaning device 1 is in FIG. 1 in a side view and in FIG. 2 shown in a longitudinal sectional view. The FIGS. 3 to 9 each show detailed representations of different areas of this cleaning device 1, wherein the FIGS. 7 to 9 various embodiments of a cleaning head 2 of this cleaning device 1 show. The Figures 10 and 11 show the cleaning device 1 with a further embodiment of a tubular portion 3, which will be described in more detail below.

The cleaning device 1 comprises a support housing 4, which serves in particular for arranging and holding the cleaning device 1 in an opening of the hollow body to be cleaned. In this case, the tubular portion 3 is introduced with the cleaning head 2 through the opening in the interior of the hollow body to be cleaned. The support housing 4 is, for example, with a formed flange, in particular with a mounting terminal 23, placed on an opening edge and attached, for example, to be cleaned hollow body, so that the cleaning device 1 is held stable during cleaning on the hollow body to be cleaned. The mounting connection 23 is designed, for example, as a connection screw connection in order to connect the cleaning device 1 by screwing to the hollow body.

The tubular or rod-shaped section 3, d. H. the elongated, at least substantially rotationally symmetrical, section of the cleaning device 1 is, in particular with a drive end region, arranged in the support housing 4 and extends downwards, d. H. along its longitudinal extent, out of the support housing 4. The cleaning head 2, which is rotatable about an in particular vertical first rotation axis Z, adjoins a cleaning head end region of the tubular section 3 opposite the drive end region. At this cleaning head 2, a spray arm 5 rotatable about an at least substantially perpendicular to the first axis of rotation Z and thus substantially horizontally oriented second axis of rotation X is arranged.

A drive device 6 for driving the cleaning head 2 and the spray arm 5 is arranged on the drive end region of the tubular section 3 opposite the cleaning head end region. This drive device 6 comprises a gear arrangement 7, which is arranged in a gear housing 8 on an upper side of the support housing 4, and a motor arrangement 9, which is arranged on an upper side of the gear housing 8.

The gear arrangement 7 comprises two independent drive motor side gear 10, 11 and the motor assembly 9 two independent drive units, in particular drive motors 12, 13, each drive unit, in the example shown each drive motor 12, 13, each with a drive motor side gear 10, 11 is coupled , so that the cleaning device 1 two independent and advantageously having separately controllable and / or controllable drive arrangements. One of the drive arrangements serves to drive the cleaning head 2 and the other drive arrangement serves to drive the spray arm 5.

The respective drive unit is designed in particular as an electrical, pneumatic and / or hydraulic drive unit. In particular, the respective drive unit 12, 13 designed as a drive unit is designed as an electric motor. In other embodiments, the respective drive unit formed as a drive motor 12, 13 may be formed, for example, as a pneumatic motor or hydraulic motor. In other exemplary embodiments, the respective drive unit can be designed, for example, as a turbine, in particular as a hydraulically operated turbine and thus as a hydraulic drive unit designed as a turbine. The two drive units can be identical or different.

The tubular section 3 comprises an outer hollow shaft 14, which is rotatably mounted in the support housing 4 about its axis of rotation, which corresponds to the first axis of rotation Z. It is connected to the cleaning head 2, in particular rotatably connected, and coupled via the first drive motor side gear 10 with the first drive motor 12 formed as the first drive unit for driving the cleaning head 2, as in the Figures 2 and 4 shown.

In the outer hollow shaft 14, an inner hollow shaft 15 is arranged, which is rotatably mounted relative to the outer hollow shaft 14 about its axis of rotation corresponding to the first axis of rotation Z, ie, the hollow shaft 15 is coaxially disposed in the hollow shaft 14, wherein the hollow shaft 14 and inner hollow shaft 15 independently are rotatable. Thus, the inner hollow shaft 15 and the cleaning head 2 are rotatable independently. This is achieved via a corresponding bearing 30 between inner hollow shaft 15 and cleaning head 2. This hollow shaft 15 is coupled via a sprüharmseitiges gear 16 with the spray arm 5 and the second drive motor-side gear 11 is coupled to the second drive unit designed as a second drive unit 13 for driving the spray arm 5.

The drive motor side gear 10, 11 each have a drive gear 17, 18 and a driven gear 19, 20 on. The drive gear 17 of the first drive-motor-side transmission 10 is, in particular via a first drive shaft, coupled to the first drive motor 12 formed as the first drive unit. The drive gear 18 of the second drive-motor-side transmission 11 is coupled, in particular via a second drive shaft, with the second drive unit designed as a second drive motor 13. The output gear 19 of the first drive motor side gear 10 is coupled to the outer hollow shaft 14, in particular arranged on this. The output gear 20 of the second drive motor side gear 11 is coupled to the inner hollow shaft 15, in particular arranged on this.

The sprüharmseitige gear 16 is designed as a crown gear, also referred to as crown gear, wherein on the inner hollow shaft 15, a spindle or spur gear 21 is arranged and arranged on the spray arm 5, more precisely on a rotatably mounted in the cleaning head 2 region of the spray arm 5, a crown wheel 22 is, also referred to as Kronenrad. As a result, a deflection from the vertical first rotational axis Z of the inner hollow shaft 15 to the horizontal second rotational axis X of the spray arm 5 is achieved. The alternative arrangement of spur gear 21 and crown wheel 22, d. H. the spur gear 21 on the spray arm 5 and the crown wheel 22 on the inner hollow shaft 15, would also be possible. Alternatively, a bevel gear would be possible or it may be another form of redirecting the rotational movement of the vertically disposed inner hollow shaft 15 on the cleaning head 2 horizontally extending portion of the spray arm 5 may be provided.

A cleaning liquid line 24 for the cleaning liquid F passes through the tubular portion 3, through the cleaning head 2 and through the Spray arm 5 through and opens into at least one outlet opening 25 of the spray arm 5. In this case, the cleaning fluid line 24 is disposed in the tubular portion 3 in the inner hollow shaft 15, ie it passes through it. It is thus coaxial with the inner hollow shaft 15 and thus also arranged coaxially with the outer hollow shaft 14.

This cleaning fluid line 24 is liquid-tight with respect to a cleaning device interior, in particular with respect to the inner hollow shaft 15 and thus also with respect to the outer hollow shaft 14, with respect to the gear assembly 7, through which it passes, with respect to the sprüharmseitigen transmission 16, through which it also passes, with respect to an interior the cleaning head 2 and in particular with respect to bearings, which allow the rotation of the inner hollow shaft 15, the outer hollow shaft 14, the cleaning head 2 and the spray arm 5.

The cleaning fluid line 24 extends from a connection element 26, for example a fluid connection, for supplying the cleaning fluid F through the transmission housing 8, through the two output gears 19, 20, through the inner hollow shaft 15 and thus also through the outer hollow shaft 14, in which the inner hollow shaft 15 is arranged , through the spur gear 21, is then angled towards the crown wheel 22 and passes therethrough and through the spray arm 5 to its outlet opening 25. The described course forms a main line section of the cleaning fluid line 24, from which one or more self-cleaning line sections 27 to further outlet openings 28 on the cleaning head 2 and / or on the spray arm 5 can branch off, as will be described in more detail below. Furthermore, such a further outlet opening 28 may be provided directly on the main line section, for example, as in the FIGS. 7 to 9 shown on the spray arm 5.

All of the cleaner components, and of course all other cleaner components except for the cleaning fluid conduit 24 itself, are located outside the cleaning fluid conduit 24. The cleaning fluid line 24 is thus designed as a line which is completely closed, ie encapsulated, relative to the cleaning device interior, for example as a cleaning fluid tube, cleaning fluid tube or cleaning fluid channel. It thus has its own, within the cleaning device 1 completely closed line wall 29. This conduit wall 29 is spaced from an inner side of the inner hollow shaft 15 to allow the inner hollow shaft 15 to rotate without grinding on the cleaning fluid conduit 24, because the portion of the cleaning fluid conduit 24 passing through the tubular portion 3 does not rotate, neither with the outer hollow shaft 14 nor with the Inner hollow shaft 15. The spacing of inner hollow shaft 15 and cleaning fluid line 24 and the thus enabled rotation of the hollow shaft 15 relative to the stationary cleaning fluid line 24, without damaging them, is achieved by a bearing 31 between inner hollow shaft 15 and conduit wall 29.

The conduit wall 29 encloses a conduit interior, which is provided exclusively for the flow through, in particular for the passage of the cleaning fluid F. Ie. the cleaning fluid line 24 is hollow inside, it has a free cross section and free diameter. In this enclosed by the conduit wall 29 line interior no other cleaning device component is arranged, in particular no drive component, in particular no drive shaft, no transmission component, no transmission, no bearing component and no bearing, ie in particular no required for rotating the cleaning head 2 and / or the spray arm 5 and especially for this self-moving component.

This refinement of the cleaning fluid line 24 prevents the cleaning fluid F from coming into contact with cleaning device components in the interior of the cleaning device 1, in particular with the abovementioned components which are required for the rotation of the cleaning head 2 and the spray arm 5. This avoids that from the hollow body to be cleaned dissolved particles with the reused, d. H. in recirculation mode returned to the cleaning device 1, cleaning liquid F are transported to these cleaning device components and pollute them and thereby damage or block.

The tubular section 3, the cleaning head 2 and the spray arm 5, with the exception of the at least one outlet opening 25, in the examples shown here, with the exception of the plurality of outlet openings 25, 28, liquid-tightly sealed against an external environment. This prevents the cleaning fluid F soiled by the cleaning of the hollow body from penetrating from the outside into the cleaning device interior and, in particular, reaching the above-mentioned cleaning device components required for the rotational movement of the cleaning head 2 and the spray arm 5 so that they can not be soiled or blocked.

In order to ensure this seal against the external environment, in the example shown, the outer hollow shaft 14, overlapping a flange region of the cleaning head 2, is connected to the cleaning head 2. For example, the flange portion of the cleaning head 2 is screwed into the outer hollow shaft 14.

Furthermore, a press-fit sleeve 32 with a sealing lip 33 is arranged at a transition region from a section fixed in the cleaning head 2 into a section of the cleaning fluid line 24 rotating with the spray arm 5 in order to prevent the cleaning fluid F from escaping. moreover are in a recess of this press-in sleeve 32, a sealing element 34 and a support member 35 is arranged.

Furthermore, a seal 36 is arranged at an opening region through which the spray arm 5 is guided into the cleaning head 2, in order to prevent penetration of the cleaning fluid F from the outside into the cleaning device interior also via this opening. In addition, a seal 37 is also arranged between the support housing 4 and the outer hollow shaft 14 in order to prevent a penetration of the cleaning fluid F between the outer hollow shaft 14 and support housing 4 in the support housing 4 and from there into the transmission housing 8 and into the tubular portion 3. This ensures that the cleaning fluid F is guided within the cleaning device 1 exclusively in the cleaning fluid line 24.

The cleaning device 1 furthermore has sensors 38 for determining a rotational position of the cleaning head 2 and a rotational position of the spray arm 5. These are arranged in the illustrated example in the gear housing 8, in particular in the region of the respective drive motor side gear 10, 11. They detect, for example, revolutions of the respective drive gear 17, 18 and / or driven gear 19, 20 and / or the respective drive shaft. This makes it possible, for example, to determine a respective rotational position of the cleaning head 2 and of the spray arm 5 and thus a respective direction of the jet of spray liquid sprayed on the spray arm 5.

Optionally, it can be provided that the cleaning device 1 has a pressure sensor 39 for determining a pressure of the cleaning liquid F sprayed by the spray arm 5, as in FIG FIG. 2 shown. Here, this pressure sensor 39, for example a pressure measuring cell, is arranged in the support housing 4, more precisely at an underside of the support housing 4 within a region enclosed by the mounting connection 23 and thus during the cleaning before the opening of the hollow body, through which the Cleaning device 1 is introduced. The pressure sensor 39 is aligned in the direction of the cleaning head 2 with spray arm 5.

Are the cleaning head 2 and the spray arm 5 in the in FIG. 2 In the position shown, the jet of the cleaning liquid F sprayed by the spray arm 5 hits the pressure sensor 39, so that the pressure of the jet can be determined. In addition, this position of the cleaning head 2 and spray arm 5 can be detected as soon as the pressure sensor 39 detects the impact of the sprayed cleaning liquid F. As a result, for example, a calibration of the rotational positions of cleaning head 2 and spray arm 5 is made possible by, for example, this in FIG. 2 shown position of the cleaning head 2 and spray arm 5, in which the jet of cleaning fluid F impinges on the pressure sensor 39 is defined as the home position or home position.

The cleaning device 1 may for example have a self-cleaning function, in particular to clean outer areas of the cleaning head 2 or to protect against contamination. In order to avoid contamination of a region between spray arm 5 and cleaning head 2 in particular, a further outlet opening 28 in cleaning fluid line 24 is provided on spray arm 5, which is formed on a lower region of spray arm 5, that of end-side outlet opening 25 for spraying the cleaning liquid F is provided for cleaning the hollow body, is complained of, as in the FIGS. 7 to 9 shown. This further outlet opening 28 is aligned in the direction of the cleaning head 2 and sprays a portion of the outside of the cleaning head 2, on which the spray arm 5 moves past. As a result, in particular an attachment of particles between the spray arm 5 and cleaning head 2 and thus blocking the rotational movement of the spray arm 5 is prevented.

Furthermore, in the embodiment according to FIG. 8 at least one, in the illustrated example at least substantially horizontally extending, Self-cleaning line section 27 is provided in the cleaning head 2, which branches off from the main line section of the cleaning fluid line 24 and opens in a further outlet opening 28 on the cleaning head 2. As a result, the cleaning fluid F is led laterally to the outside of the cleaning head 2 in order to clean it, in particular its outer surface, and / or to prevent the contamination. Advantageously, a plurality of such substantially horizontal self-cleaning line sections 27 are provided, which open into distributed around the cleaning head 2 further outlet openings 28 to spray a lateral outer surface of the cleaning head 2 as fully as possible with the cleaning liquid F.

In the embodiment according to FIG. 9 In addition, an at least substantially vertically extending self-cleaning line section 27 is provided in the cleaning head 2, which branches off from the main line section of the cleaning fluid line 24 and opens in a further outlet opening 28 at an underside of the cleaning head 2. Thereby, the cleaning liquid F is also passed to the lower outside of the cleaning head 2, to clean it and / or to prevent contamination.

In order to enable the spraying of the outer surface of the cleaning head 2 in a simple manner, a baffle plate 40 is arranged on the outside of the cleaning head 2 in front of the respective further outlet opening 28 of the respective self-cleaning line section 27 and spaced apart from this respective further outlet opening 28, as in FIGS FIGS. 8 and 9 shown. As a result, the cleaning liquid F exiting from the respective further outlet opening 28 bounces against a side of the respective baffle plate 40 facing the respective further outlet opening 28 and bounces off the latter in the direction of the outer surface of the cleaning head 2. As a result, the outer surface of the cleaning head 2 is sprayed with the cleaning liquid F, whereby deposited particles are removed and / or the attachment of particles is prevented.

In the embodiment according to the Figures 10 and 11 is the tubular portion 3 telescopically formed, in particular as a telescopic tube assembly of a plurality of axially displaceable relative to each other and advantageously interlocking intermeshing tubular elements 41. This telescoping is independent of one or more features described above possible. For example, both the inner hollow shaft 15 and the outer hollow shaft 14 are formed correspondingly telescopic. Alternatively, for example, a flexible shaft or a Teleskopfaltenbalg be provided for the respective torque transmission.

The cleaning fluid line 24 is to enable this telescoping, in the region of this telescopic tubular portion 3, for example, also telescopically formed in the manner described, or it is for example flexible in the axial direction, for example as a flexible hose, the conduit wall 29 stretchable and / or foldable in the axial direction.

This telescoping allows, advantageously in addition to the two independent rotational movements of cleaning head 2 and spray arm 5 about two axes, d. H. about the first rotation axis Z and the second rotation axis X, a translational movement along an axis, in particular along the first rotation axis Z, d. H. a translational movement of the cleaning head 2 with the spray arm 5 axially to the tubular portion and thereby lowering and raising the cleaning head 2 with the spray arm 5 in the hollow body to be cleaned.

This translational movement, ie the telescoping, can for example be done manually and / or by means of a telescopic drive 42, for example comprising a further drive motor, and thus in particular automatically. The telescopic drive 42, in particular a corresponding telescopic drive unit, for telescoping the tubular portion 3, ie for retraction and Extending, in particular in addition to the further drive motor, for example, a rope, a chain, a belt or a spindle.

By telescoping, for example, internals in the hollow body to be cleaned, for example an agitator, can also be specifically cleaned from below by lowering the cleaning head 2 with the spray arm 5 in the hollow body by extending the telescoping tubular section 3. As a result, an immersion depth of the cleaning head 2 with the spray arm 5 in the hollow body to be cleaned, for example, extendable, at least within the maximum telescopic length of the tubular portion 3. By telescoping large structures of the cleaning device 1 outside of the hollow body to be cleaned are also avoided.

The described cleaning device 1 thus enables independently controllable and / or controllable rotations about two axes of rotation Z, X and, if the telescopability is present, also an automatic and / or manual vertical translational movement along the first axis of rotation Z. As a result, in particular a needs-based Cleaning the inner surface of the hollow body allows, with individual areas can be targeted and stronger irradiated with the cleaning fluid F than other areas.

When using the cleaning device 1, any, in particular freely parameterizable, cleaning tracks and cleaning courses can be designed, which are then traversed by the jet of the cleaning agent. This would not be possible with transmission solutions, via which the rotation of the spray arm 5 is positively coupled with the rotation of the cleaning head 2.

By means of the cleaning device 1 thus a time and resource-optimized cleaning is possible, whereby downtime of a system to be cleaned can be reduced. By means of the cleaning device 1, each point in the hollow body to be cleaned by means of the jet of Cleaning fluid F targeted approach and be cleaned, especially critical points such as nozzles, manholes or agitators. Furthermore, in combination with a corresponding sensor system, an inline adaptation of the cleaning profile, ie adaptation during cleaning, is possible, which enables adaptive cleaning.

In the embodiment of the cleaning device 1, which has the Telekopierbarkeit, it is also possible internals in the hollow body, for example, a stirrer, also targeted to clean from below by the cleaning head 2 is lowered by the telescoping corresponding deep into the hollow body. As a result, no installation of additional cleaners, such as spray balls required.

The cleaning device 1 described has a simple and robust construction, which is freely scalable. Ie. the design of the cleaning device 1 is easily adaptable to any application, for example by producing the cleaning device 1 in the appropriate size. Changes in the basic functions are not required for this.

The drive units, in particular drive motors 12, 13, of the cleaning device 1 are arranged fixed. As a result, an intelligent drive concept is achieved in which no rotary feedthroughs, such as slip rings, are required.

The spray arm 5 advantageously has a curved shape, in particular a shape corresponding to the outer surface of the cleaning head 2, on which the spray arm 5 moves along, in particular in the Figures 2 . 5 and 7 to 9 shown. The spray arm 5 is thus curved so that its cleaning head 2 facing outer shape of the outer shape of the at least substantially spherical cleaning head 2 is adjusted, the spray arm 5 rests over its entire length on the cleaning head 2 or, as in the Figures 2 . 5 and 7 to 9 shown, only so slightly spaced to allow rotation of the spray arm 5 without grinding on the cleaning head 2.

As a result of this guidance of the spray arm 5 close to the cleaning head 2, a particularly small imbalance is achieved during the rotation of the cleaning head 2 and the rotation of the spray arm 5. Furthermore, an alignment of the jet of the cleaning liquid F is thereby also made possible on regions of the hollow body to be cleaned arranged directly under and above the cleaning head 2, whereby, for example, a region around the opening through which the cleaning device 1 is introduced into the hollow body, and / or a lower drainage area of the hollow body can be cleaned.

As already mentioned, the liquid flow of the cleaning liquid F is encapsulated by the cleaning device 1, so that, in particular, gear components do not come into contact with the cleaning liquid F. As a result, introduction of wear-related abrasion of the gear components via the cleaning fluid F into the hollow body is avoided. Furthermore, a, at least substantially, constant flow cross-section is achieved and a flow around moving parts is avoided. As a result, lower pressure losses are achieved and turbulence of the cleaning fluid F can be avoided.

Since the cleaning of hollow bodies usually takes place in the circulation, ie not as lost cleaning, but with reuse of the sprayed cleaning liquid F, and built-in filters can not filter out all the product residues dissolved from the hollow body, this encapsulation of the liquid flow also sets such product residues in the drive motor side gears 10, 11 and avoided in sprüharmseitigen gear 16, whereby hygienic risks and failure of the cleaning device 1 can be avoided.

Due to the simple structure of the cleaning device 1 in particular an immersion depth of the cleaning head 2 in the hollow body is arbitrarily changeable, either by the provision of telescoping or by the outer hollow shaft 14, inner hollow shaft 15 and the running therein part of the cleaning fluid line 24 are replaced with correspondingly longer or shorter replacement parts ,

Due to the telescopability, in addition to the particularly simple change in the immersion depth during cleaning, also achieved that no large structures outside the hollow body are required because not all the cleaning device 1 or parts thereof must be pulled out of the hollow body to the top Change immersion depth.

FIG. 12 shows a further embodiment of the cleaning device 1, in which the cleaning device 1 has two spray arms 5. In the illustrated example, both spray arms 5 are arranged opposite one another on the cleaning head 2 and are thus arranged rotatable about the same at least substantially perpendicular to the first axis of rotation Z and thus substantially horizontally oriented second axis of rotation X. They are connected in the example shown with a rotatably mounted in the cleaning head 2 Sprüharmhohlwelle 43, which is aligned parallel to the second axis of rotation X and through which the cleaning fluid line 24 passes. For this purpose, this Sprüharmhohlwelle 43 is sealed and rotatably mounted in a arranged in the cleaning head 2 T-piece 44 of extending through the inner hollow shaft 15 and in the cleaning head 2 continuing portion of the cleaning fluid line 24, wherein a sealed in this T-piece 44 arranged area of Sprüharmhohlwelle 43rd at least one passage opening 45, in the example shown a plurality of passage openings 45, to the inflow of the cleaning fluid F from the extending through the hollow shaft 15 and in the cleaning head 2 further leading portion of the cleaning fluid line 24 in the Sprüharmhohlwelle 43 and thus in the section of the cleaning fluid line 24 enable.

In the example shown, the spray arm hollow shaft 43 and are thus both spray arms 5 coupled via the sprüharmseitige gear 16 with the inner hollow shaft 15 and coupled via the second drive motor side gear 11 with the second drive motor 13 formed as the second drive unit for driving the spray arm 5.

The sprüharmseitige gear 16 is formed in this example as a bevel gear, wherein on the inner hollow shaft 15, a bevel gear 46 is arranged and on the Sprüharmwelle 43 a corresponding bevel gear 47 is arranged, which are in meshing engagement with each other. As a result, a deflection from the vertical first rotational axis Z of the hollow inner shaft 15 to the horizontal second rotational axis X of the Sprüharmhohlwelle 43 and thus the two spray arms 5 is achieved. Alternatively, a crown gear would also be possible or it may be another form of redirecting the rotational movement of the vertically disposed inner hollow shaft 15 may be provided on the cleaning head 2 horizontally extending Sprüharmhohlwelle 43.

LIST OF REFERENCE NUMBERS

1

cleaning device

2

cleaning head

3

tubular section

4

support housing

5

spray arm

6

driving device

7

transmission assembly

8th

gearbox

9

engine location

10, 11

drive motor side gear

12, 13

drive motor

14

Outer hollow shaft

15

Inside the hollow shaft

16

spray arm side gear

17.18

drive gear

19.20

output gear

21

spur gear

22

crown wheel

23

mounting connection

24

Cleaning fluid line

25

outlet opening

26

connecting element

27

Self-cleaning line section

28

further outlet opening

29

conduit wall

30, 31

warehouse

32

Press-

33

sealing lip

34

sealing element

35

support element

36, 37

poetry

38

sensor

39

pressure sensor

40

flapper

41

tube element

42

telescopic drive

43

Sprüharmhohlwelle

44

Tee

45

Through opening

46, 47

bevel gear

F

cleaning fluid

Z

first axis of rotation

X

second axis of rotation

Claims (15)

Cleaning device (1) for cleaning with a cleaning liquid (F), in particular for cleaning hollow bodies, comprising a tubular portion (3), a cleaning head (2) rotatable about a first rotation axis (Z) at a cleaning head end region of the tubular portion (3), at least one spray arm (5) rotatable about an at least substantially perpendicular to the first axis of rotation (Z) aligned rotary axis (X) on the cleaning head (2), a drive device (6) for driving the cleaning head (2) and the spray arm (5) a drive end portion of the tubular portion (3) opposite to the cleaning head end portion, and a cleaning liquid pipe (24) for the cleaning liquid (F) passing through the tubular portion (3),
characterized in that the cleaning fluid line (24) also passes through the cleaning head (2) and the spray arm (5) and in at least one outlet opening (25) opens, wherein the cleaning liquid line (24) is liquid-tight with respect to a cleaning device interior and wherein all cleaning device components are arranged outside the cleaning fluid line (24). Cleaning device (1) according to claim 1,
characterized in that the tubular portion (3), the cleaning head (2) and the at least one spray arm (5) with the exception of the at least one outlet opening (25, 28) are sealed liquid-tight against an external environment. Cleaning device (1) according to one of the preceding claims,
characterized by two independent drive arrangements for driving the cleaning head (2) and for driving the spray arm (5), which in particular each comprise a drive unit, in particular in each case a drive motor (12, 13). Cleaning device (1) according to claim 3,
characterized in that the tubular portion (3) comprises an outer hollow shaft (14) connected to the cleaning head (2) and, in particular via a transmission (10), with the drive unit, in particular as a drive motor (12) for driving the cleaning head (2 ), wherein in the outer hollow shaft (14) an inner hollow shaft (15) is arranged, in particular via a sprüharmseitiges transmission (16) with the spray arm (5) and, in particular via a drive motor side gear (11), with the particular as a drive motor (13) formed drive unit for driving the spray arm (5) is coupled. Cleaning device (1) according to claim 4,
characterized in that the cleaning fluid line (24) passes through the inner hollow shaft (15). Cleaning device (1) according to one of the preceding claims,
characterized in that sensors (38) for determining a rotational position of the cleaning head (2) and a rotational position of the spray arm (5) are provided. Cleaning device (1) according to one of the preceding claims,
characterized in that the tubular portion (3) is telescopic. Cleaning device (1) according to one of the preceding claims,
characterized in that the cleaning fluid line (24) comprises at least one self-cleaning line section (27) which branches off from a main line section of the cleaning fluid line (24) and opens in a further outlet opening (28) on the cleaning head (2) or on the spray arm (5). Cleaning device (1) according to claim 8,
characterized in that on an outer side of the cleaning head (2) in front of the further outlet opening (28) of the at least one self-cleaning line section (27) and from this further outlet opening (28) spaced apart a baffle plate (40) is arranged. Cleaning device (1) according to one of the preceding claims,
characterized in that a pressure sensor (39) for detecting a pressure of the spray arm (5) sprayed cleaning liquid (F) is provided. Cleaning device (1) according to one of the preceding claims,
characterized by at least two rotatable spray arms (5). Cleaning device (1) according to claim 11,
characterized by three independent drive arrangements for driving the cleaning head (2) and for driving the two spray arms (5), which in particular each comprise a drive unit, in particular in each case a drive motor (12, 13). Cleaning device (1) according to one of the preceding claims.
characterized in that the tubular portion (3) comprises at least one intermediate hollow shaft disposed between the outer hollow shaft (14) and the inner hollow shaft (15). Cleaning device (1) according to claim 13,
characterized in that the at least one intermediate hollow shaft and the inner hollow shaft (15), in particular via each one sprüharmseitiges transmission (16), with different Sprüharmen (5) and, in particular via a respective drive motor side gear (11), with different in particular each as a drive motor ( 13) formed drive units for driving the respective spray arm (5) are coupled. Cleaning device (1) according to one of the preceding claims,
characterized by a plurality of cleaning fluid lines (24) for a respective cleaning fluid (F), each through the tubular portion (3), through the cleaning head (2) and through at least one spray arm (5) and open in at least one outlet opening (25) wherein the respective cleaning liquid line (24) is liquid-tight with respect to the cleaning device interior, and wherein all the cleaning device components are disposed outside the respective cleaning liquid line (24).

Images