DE102019118257A1 - Cleaning device and method for driving a cleaning device - Google Patents

Abstract

The invention relates to a cleaning device (100) for cleaning a container, in particular an orbital cleaner, comprising: a housing (110) with a fluid inlet (112) for admitting a fluid, in particular cleaning agent, a rotor (120) which, relative to the housing (110 ) can be driven in rotation about a first axis of rotation (122), a nozzle head (130) with a fluid outlet (132) for dispensing the fluid, in particular cleaning agent, the nozzle head (130) on the rotor (120) being rotatable about a second axis of rotation (134 ) is mounted, a flow channel (140) for the fluid-conducting connection of the fluid inlet (112) and the fluid outlet (132), a passage (142) which is fluid-conducting set up to conduct part of the flowing fluid to the rotor (120) , in order to apply a drive torque and to drive the rotor (120) rotationally, and a drive unit (150) which is connected to the rotor (120) on the drive side and to the nozzle head (130 ) is coupled and set up to transmit the drive torque of the rotor (120) to the nozzle head (130). The invention also relates to a method for driving a cleaning device.

Description

The invention relates to a cleaning device for cleaning a container, in particular an orbital cleaner, and a method for driving a cleaning device.

Cleaning devices of the type mentioned are generally known. They are used, for example, in the food and beverage industry for the hygienic and especially sterile cleaning of containers.

So-called orbital cleaners work on the basis of two rotating axes, a vertical and a horizontal axis, around which a round jet nozzle rotates in such a way that a highly concentrated jet of water or cleaning agent with high impact ensures intensive cleaning of the surfaces of tanks and containers.

Such cleaning devices are mostly driven by the inflowing fluid, in particular cleaning agent itself. A rotor is arranged in the flow path of the fluid flowing into the cleaning device in such a way that the rotor is driven as a function of the flow velocity. As a result of the rotation of the rotor, the cleaning device, and in particular a nozzle head for such a cleaning device, is driven around a first axis.

It is therefore an object of the present invention to provide an improved cleaning device.

The invention achieves the above-mentioned object by a cleaning device according to claim 1.

In particular, the invention proposes a cleaning device of the type mentioned at the outset, comprising: a housing with a fluid inlet for admitting a fluid, in particular cleaning agent, a rotor which can be rotatably driven relative to the housing about a first axis of rotation, a nozzle head with a fluid outlet for dispensing of the fluid, in particular cleaning agent, wherein the nozzle head is rotatably mounted on the rotor about a second axis of rotation, a flow channel for the fluid-conducting connection of the fluid inlet and the fluid outlet, a passage which is fluid-conducting set up to supply part of the flowing fluid to the rotor guide in order to apply a drive torque and to drive the rotor rotationally, and a drive unit which is coupled on the drive side to the rotor and on the output side to the nozzle head and is set up to transmit the drive torque of the rotor to the nozzle head.

The invention includes the knowledge that in the cleaning devices of the type mentioned at the outset, the arrangement of the rotor in the flow path restricts the design variety in such cleaners. The invention further includes the knowledge that the arrangement of the rotor in the flow path causes turbulent flows or flow disturbances, so that the drive of the nozzle head is impaired. In this context, the invention includes the knowledge that, as a result of the drive of the nozzle head, depending on the flow speed, these turbulences and flow disturbances lead to a discontinuity and impairment of the control of the nozzle head.

One advantage of the invention lies in the fact that a passage which is fluidly configured to conduct part of the flowing fluid to the rotor enables reliable drive of the rotor and at the same time impairs or creates turbulence in the flowing fluid between the Fluid inlet and the fluid outlet avoids. Furthermore, such a passage advantageously enables the generation of a pressure-controlled drive torque which is therefore no longer controlled solely by the flow speed of the flowing fluid. The design variety of such an advantageous cleaning device is thus increased and the controllability of the drive as a function of the pressure is made possible.

According to a preferred embodiment, the rotor or the housing has at least one rolling element, the housing or the rotor having at least one rolling surface arranged coaxially to the rotor, and the part of the flowing fluid being guided to the rotor in such a way that the rolling element is passed through the fluid is moved along the rolling surface. A drive torque is thus applied to the rotor by driving a rolling element along a rolling surface arranged coaxially to the rotor. Such a rolling element is preferably coupled to the rotor in such a way that the rolling element is moved along the rolling surface and thus around the first axis of rotation, so that the rotor rotates around the first axis of rotation relative to the housing.

The rolling surface is preferably formed by an, in particular rotationally symmetrical, inner wall of the housing that is formed around the first axis of rotation and extends in the axial direction. Alternatively, the rolling surface is formed by an, in particular rotationally symmetrical, outer wall of the rotor that is formed around the first axis of rotation. Thus, a compact design can be guaranteed in both cases and the rolling elements within the housing in this way rotate so that a drive torque is applied to the rotor. The inner wall extends at least along part of the rolling element in the axial direction so that it is moved in a guided manner along the inner wall which forms the rolling surface. The at least one rolling element can preferably be arranged radially inside the rolling surface. In this way, for a given size of the device, a higher torque is achieved than in an alternative, likewise preferred embodiment, in which the at least one rolling element is arranged radially outside the rolling surface, so that the rolling surface is between the at least one rolling element and the axis of rotation .

According to a particularly preferred embodiment, the distance between the rolling surface and the axis of rotation is not constant, so that the rolling surface has at least one first section in which the distance decreases and has at least one second section in which the distance increases. Thus, in addition to the movement of the rolling element in the circumferential direction, a movement of the rolling element in the radial direction is also generated, which is dependent on the distance between the rolling surface and the axis of rotation. Thus, a movement of the rolling element in the radial direction also leads to a movement of the rolling element in the circumferential direction along the rolling surface.

The rotor preferably has a plurality of rolling elements and the rolling surface has a plurality of first sections in which the distance decreases and a plurality of second sections in which the distance increases, a first section in each case being arranged adjacent to a second section. In the second section, a movement of the roller body radially outwards thus simultaneously leads to a movement in the circumferential direction. Then an adjacent rolling element can be driven radially outward by the flowing fluid so that it is also moved in a defined area in the circumferential direction. The successive movement in the circumferential direction of the plurality of rolling elements causes the rotor to rotate about the first axis of rotation.

The distance between the rolling surface and the axis of rotation can preferably be described as a function A = sin α. Thus, there is a uniform increase and decrease in the distance between the rolling surface and the axis of rotation and thus a uniform movement of the rolling element in the radial direction between a maximally deflected and a maximally deflected position in the radial direction.

The passage is preferably connected in a fluid-conducting manner to a pressure space for pressurized fluid that is at least partially formed by the flow channel. In this way, fluid under pressure can get into the passage particularly easily.

Alternatively or in addition, the passage can be connected in a fluid-conducting manner to a pressure space for pressurized fluid, which is at least partially formed by an interior of the rotor.

According to a further preferred embodiment, the drive unit comprises: a drive shaft for driving the nozzle head, which is arranged coaxially to the second axis of rotation and is coupled to the rotor in such a way that the drive shaft with the rotor is driven about the first axis of rotation, and one relative to the first and second axis of rotation stationary receptacle, wherein the drive shaft is in engagement with the stationary receptacle in such a way that the drive torque of the rotor is transmitted to the drive shaft and the drive shaft rotates about the second axis. Thus, through the rotation of the rotor and the drive shaft coupled to the rotor around the first axis of rotation, a torque is applied to the drive shaft of the drive unit at the same time, which drives the drive shaft around the second axis of rotation in such a way that the nozzle head around the first axis of rotation and the second The axis of rotation is driven in rotation around.

The stationary receptacle preferably has a stationary bevel gear, which is arranged coaxially to the first axis of rotation and is tapered on the rotor side, and the drive shaft has a bevel drive gear for torque-transmitting coupling with the stationary bevel gear, which is arranged coaxially to the second axis of rotation and in the direction of the first axis of rotation is tapered. The drive unit is thus designed in the manner of a bevel gear, which comprises the first axis of rotation and a second axis of rotation which is arranged at an angle to the first axis of rotation and which have a common point of intersection. The power is transmitted through the first and the drive bevel gear. Such a bevel gear preferably has external toothing, the teeth of the drive bevel gear rolling or sliding along the teeth of the stationary bevel gear. The sliding or rolling is generated by the relative movement of the drive bevel gear relative to the stationary bevel gear. The stationary bevel gear is preferably a ring gear and the drive bevel gear is preferably a pinion. The bevel gears mesh with one another in such a way that a relative movement of the drive bevel gear around the first axis of rotation in a first direction of rotation and in a second direction of rotation causes the drive torque of the rotor to be transmitted to the drive shaft around the first axis of rotation.

According to a further preferred embodiment, the flow channel has a first cross-sectional area and the passage has a second cross-sectional area, the second cross-sectional area being smaller than the first cross-sectional area. The flow rate of the fluid in the passage can thus be increased by the second cross-sectional area, which is smaller than the first cross-sectional area. Thus, even with a comparatively slow flow of the fluid in the flow channel, a faster rotational movement of the nozzle head about the first and second rotational axes can be generated.

Furthermore, the first cross-sectional area of the flow channel can be smaller than the second cross-sectional area of the passage, so that the flow velocity of the fluid can be high and a comparatively slow rotation of the nozzle head about the first axis and the second axis is generated.

The housing preferably has a cylindrical section which is arranged coaxially to the first axis of rotation and which forms a section of the flow channel, and wherein the stationary bevel gear is formed at an end of the cylindrical section on the rotor side. The stationary receptacle is thus formed by the cylindrical section which has the stationary bevel gear on the rotor side. The design of the housing is thus made more compact, since part of the flow channel, namely the part of the flow channel which has the fluid inlet and can be coupled to a supply line, forms the stationary receptacle. This part of the flow channel is conventionally designed to be stationary, since a reliable fluid-conducting coupling to the supply line must be ensured.

According to a further preferred embodiment, the rotor has a cage for guiding the rolling element in the radial direction, which is arranged coaxially to the first axis of rotation and is set up to rotate with the rolling element about the first axis of rotation. The majority of the rolling elements are thus coupled to one another and guided in the radial direction. A movement of one rolling element in each case in the circumferential direction thus requires a movement in the circumferential direction of all of the rolling elements which are guided through the cage. The movement of one rolling element in each case radially outward through a part of the flowing fluid thus equally causes a relative movement in the circumferential direction of all rolling elements.

The cage is preferably at least partially received on the housing and the rolling element is guided through the cage in such a way that the rolling element can be moved in the radial direction between the cage and the rolling surface. This ensures a guided movement of the rolling element in the radial direction.

The cage also preferably has a plurality of receptacles which are arranged along an outer circumference of the cage and are designed to at least partially receive a rolling element and to guide it in the radial direction. Through such receptacles, which guide the rolling elements in the radial direction, the plurality of rolling elements can be received by the cage in such a way that they can be moved within the receptacles in the radial direction between the rolling surface and an inner contact surface of the respective receptacle. The passage is preferably connected in a fluid-conducting manner to at least one receptacle, so that part of the flowing fluid is introduced between the rolling element and an inner contact surface of the receptacle and strikes the rolling element in such a way that it is pressed radially outward.

Preferably, the rolling elements are cylindrical and the receptacle is designed in a partially cylindrical manner, corresponding to the rolling elements. Such a cylindrical design prevents the rolling element from tilting within the receptacle.

The receptacles preferably each have an opening facing away from the housing, which can be connected to the passage in a fluid-conducting manner. Thus, part of the flowing fluid can be introduced through the opening between the rolling element and an inner contact surface of the receptacle in such a way that the rolling element is pressed radially outward.

According to a further preferred embodiment, the rotor further comprises a cover element, which is designed to close the openings, and wherein the cover element has a plurality of channels which can be connected to the passage in a fluid-conducting manner. Thus, depending on the channels of such a cover element, a defined inflow of at least part of the flowing fluid into the receptacle for the rolling elements can be ensured, so that the respective rolling element is moved radially outward in the receptacle.

Further preferably, at least one discharge channel is formed in such a cover element, from which the fluid located in the receptacle can flow after the respective rolling element has been moved radially outward.

The invention has been described above in relation to a first aspect.

In a second aspect, the invention also relates to a method for driving a cleaning device, in particular a cleaning device of the type described above.

The invention achieves the object described above in a second aspect through the subject matter of claim 18.

• - Einlassen eines Fluids, insbesondere Reinigungsmittels, in ein Gehäuse,
• - Leiten eines Teils des strömenden Fluids zu einem Rotor,
• - Antreiben des Rotors durch den Teil des strömenden Fluids um eine erste Rotationsachse relativ zu dem Gehäuse,
• - Bereitstellen einer Antriebseinheit, welche antriebsseitig mit dem Rotor und abtriebsseitig mit einem Düsenkopf gekoppelt ist,
• - Übertragen des Drehmoments des Rotors auf den Düsenkopf durch die Antriebseinheit, und
• - Abgeben des Fluids durch einen Fluidauslass des Düsenkopfes.

In particular, the invention proposes a method for driving a cleaning device, in particular a method for driving a cleaning device of the type described above, the method comprising the steps:

• - Letting a fluid, in particular cleaning agent, into a housing,
• - directing part of the flowing fluid to a rotor,
• - Driving the rotor by the part of the flowing fluid about a first axis of rotation relative to the housing,
• - Provision of a drive unit which is coupled to the rotor on the drive side and to a nozzle head on the driven side,
• - Transmission of the torque of the rotor to the nozzle head by the drive unit, and
• - Dispensing the fluid through a fluid outlet of the nozzle head.

The method according to the invention and its possible developments have features or method steps that make them particularly suitable for being used for a cleaning device according to the previous aspect and the respective developments.

For further advantages, design variants and design details of this further aspect and its possible further developments, reference is made to the description given above for the corresponding features and further developments of the cleaning device.

• 1: eine Schnittdarstellung einer erfindungsgemäßen Reinigungsvorrichtung;
• 2: ein Gehäuse für die Reinigungsvorrichtung gemäß 1 in einer perspektivischen Ansicht;
• 3: ein Käfig für die Reinigungsvorrichtung gemäß 1 in einer perspektivischen Ansicht;
• 4: ein Abdeckelement für die Reinigungsvorrichtung gemäß 1 in einer perspektivischen Ansicht;
• 5: einen Wälzkörper für die Reinigungsvorrichtung gemäß 1 in einer perspektivischen Ansicht;
• 6: ein Kegelrad für die Reinigungsvorrichtung gemäß 1 einer perspektivischen Ansicht.

The invention is explained below on the basis of a preferred exemplary embodiment with reference to the accompanying figures. Show it:

• 1 : a sectional view of a cleaning device according to the invention;
• 2 : a housing for the cleaning device according to 1 in a perspective view;
• 3 : a cage for the cleaning device according to 1 in a perspective view;
• 4th : a cover element for the cleaning device according to FIG 1 in a perspective view;
• 5 : a rolling element for the cleaning device according to FIG 1 in a perspective view;
• 6th : a bevel gear for the cleaning device according to 1 a perspective view.

In the 1 shown cleaning device 100 includes a housing 110 , a rotor 120 with a first axis of rotation 122 and a nozzle head 130 with a second axis of rotation 134.

The case 110 has a fluid inlet 112 to let in fluid from.

The rotor 120 is relative to the housing 110 rotatory about the first axis of rotation 122 drivable and has a large number of rolling elements 124 on which one with the housing 110 are in rolling contact.

The nozzle head 130 is on the rotor 120 rotatable around the second axis 134 assembled. The nozzle head 130 has a fluid outlet 132 to discharge fluid.

The cleaning device 100 further comprises a flow channel 140 for fluid-conducting connection from the fluid inlet 112 and the fluid outlet 132 .

Furthermore, the cleaning device comprises 100 a passage 142 , which preferably conducts fluid with a through the flow channel 140 Formed pressure chamber is connected for pressurized fluid and is adapted to a part of the flowing fluid to the rotor 120 to conduct to apply a drive torque and the rotor 120 rotatory about the first axis of rotation 122 to drive. In addition or as an alternative, the passage 142 fluidly with one through an interior of the rotor 120 formed pressure space for pressurized fluid be connected.

The cleaning device 100 further comprises a drive unit 150 , which on the drive side with the rotor 120 and on the output side with the nozzle head 130 is coupled and set up to the drive torque of the rotor 120 on the nozzle head 130 transferred to.

The drive unit preferably comprises 150 a drive shaft 152 for driving the nozzle head 130 which is coaxial with the second axis of rotation 134 is arranged. The drive shaft 152 is so with the rotor 120 coupled that the drive shaft 152 with the rotor 120 around the first axis of rotation 122 is driven.

The drive unit 150 further comprises one with respect to the first and second axes of rotation 122 , 134 hospitalized 154 . The drive shaft 152 stands in such a way with the stationary admission 154 engaged that the drive torque of the rotor 120 on the drive shaft 152 is transmitted and the drive shaft 152 around the second axis of rotation 134 rotates.

Inpatient admission 154 is on the housing 110 arranged on a rotor-side end section. Inpatient admission 154 has a stationary bevel gear 156 on, and the drive unit 150 also has a drive bevel gear 158 which on the drive shaft 152 is arranged. The stationary bevel gear 156 is torque-transmitting with the drive bevel gear 158 coupled. The drive bevel gear 158 is doing so with the drive shaft 152 coupled that the drive torque of the rotor 120 from the stationary bevel gear 156 on the drive bevel gear 158 and finally on the drive shaft 152 is transmitted so that the nozzle head 130 around the first axis of rotation 122 and the second axis of rotation 134 rotates.

The cleaning device 100 also has a cage 160 for guiding the at least one rolling element 124 on which the rotor 120 assigned and coaxial with the first axis of rotation 122 is arranged. The cage is preferred 160 for guiding the at least one rolling element 124 set up in the radial direction.

The cage 160 is partially in the housing 110 added and set up for this purpose with the at least one rolling element 124 around the first axis of rotation 122 to rotate.

The rolling elements 124 be in the cage 160 guided in such a way that the at least one rolling element 124 in the radial direction between the cage 160 and the case 110 is movable.

The cleaning device 100 further comprises a cover element 170 , which is set up to the cage 160 to be covered or closed at least in sections. The cover element 170 is fluid-conducting with the flow channel 140 and especially the passage 142 connectable.

The cleaning device 100 further comprises a first pair of bearing rings 180 , which are set up to the rotor 120 on the housing 110 rotatable about the first axis of rotation 122 to store. The cleaning device further comprises a second bearing ring 182 and a third bearing ring 184 which are set up for this purpose, the nozzle head 130 and the drive shaft 152 rotatable about the second axis of rotation 134 on the rotor 120 to store.

The 2 to 6th show detailed representations of the housing 110 , the cage 160 , the cover element 170 , the rolling element 124 as well as part of the drive unit 150 according to the cleaning device 1 .

How in particular 2 shows includes the housing 110 an inner wall 114 , which is a rolling surface 116 for at least one rolling element 124 (see. 1 ) trains. According to the preferred, in the 1 and 2 The embodiment shown is the at least one rolling element 124 radially inside the rolling surface 116 arranged. Alternatively, but not shown, is the at least one rolling element 124 radially outside the rolling surface 116 arranged so that the rolling surface 116 between the at least one rolling element 124 and the axis of rotation 122 is located.

The rolling surface 116 comprises a plurality of first sections 116a , in which the distance between the rolling surface 116 to the first axis of rotation 122 sinks and a plurality of second sections 116b , in which the distance between the rolling surface 116 to the first axis of rotation 122 increases. There is always a first section 116a adjacent to a second section 116b arranged so that the change in the distance of the rolling surface 116 from the first axis of rotation 122 changes and the change is repeated cyclically.

The case 110 also has a coaxial to the first axis of rotation 122 arranged cylindrical section 118 on, which is a section of the flow channel 140 (see. 1 ) trains. On the cylindrical section 118 is the stationary holder at one end on the rotor side in the assembled state 154 the drive unit 150 with the stationary bevel gear 156 (see. 1 ) educated.

Further is on the cylindrical portion 118 the passage 142 formed, which extends towards the inner surface 114 of the housing 110 extends and is adapted to part of the inside of the flow channel 140 (see. 1 ) flowing fluid into the housing 110 and such to the rolling element 124 (see. 1 ) to direct that this along the rolling surface 116 performs a rolling motion.

By the adjacent first and second sections 116a , b causes a rolling motion of the rolling element 124 (see. 1 ) in the circumferential direction at the same time a movement in the radial direction.

3 shows the cage 160 , which is set up, the rolling elements 124 (see. 1 ) in the radial direction in the housing 110 (see. 1 and 2 ) respectively. The cage 160 is mounted to the rotor 120 (see. 1 ) assigned and coaxial to the first axis of rotation 122 arranged.

The cage 160 has a plurality of preferably partially cylindrical receptacles 162 on which along an outer periphery of the cage 160 are arranged and set up to each have a rolling element 124 (see. 1 and 5 ) at least partially take up and to guide in the radial direction such that the rolling elements 124 between the cage 160 and the rolling surface 116 are guided and movable in the radial direction. The recordings 162 correspond to the rolling elements 124 (see. 5 ) are partially cylindrical and each have a straight wall section 164 on, through which the rolling elements 124 be guided in the radial direction. The number of rolling elements is preferred 124 unequal to the number of by the sections 116a and 116b associated valleys formed in the rolling surface 116 .

The recordings 162 each have one in the assembled state of the housing 110 facing away opening 166 on which fluid-conducting with the passage 142 (see. 1 and 2 ) is connectable. The recordings 162 are arranged evenly distributed along the outer circumference.

The cage 160 also has a centrally formed cylindrical opening 168 on, which is set up, the cylindrical section 118 of the housing 110 (see. 1 and 2 ) at least in sections.

How in particular 4th shows is the cover element 170 designed as a disc, which in the assembled state is coaxial with the first axis of rotation 122 is arranged.

The cover element 170 has a plurality of channels 172 on, which are arranged evenly distributed in the circumferential direction and in the assembled state fluid-conducting with the passage 142 (see. 1 ) are connectable to a part of the flowing fluid to the rolling elements 124 (see. 1 ) to manage.

The cover element 170 also has a further central cylindrical opening 174 (second cylindrical opening), which is adapted to the cylindrical portion 118 of the housing 110 at least in sections.

5 shows the rolling element 124 in a perspective view. When assembled, each of the recordings 162 (see. 3 ) such a rolling element 124 added movably in the axial direction.

By the fluid that is passing through the channels 172 in the recordings 162 flows in (cf. 3 and 4th ), and through the passage 142 (see. 2 ) to the rolling element 124 is directed, the rolling element 124 pressed radially outwards. The rolling element 124 is doing so with the rolling surface 116 (see. 2 ) brought into contact that each of the rolling elements 124 from a position in which he was in the first section 116a the rolling surface 116 (see. 2 ) is in contact along the second section 116b is moved so that the rolling element 124 moved radially outward. This movement allows the rolling element 124 avoid the pressure that is applied by the inflowing fluid.

As a result of this evasive movement radially outwards, one rolling element rolls in each case 124 consequently along the second section 116b up to a point where the distance of the contact surface 116 to the axis of rotation 122 is maximum. Then the radially outward movement of a further rolling element leads 124 to continue this rolling movement. This movement is repeated, so that there is a sustained rolling movement depending on the pressure of the flow channel 140 flowing fluid comes.

6th shows the drive bevel gear 158 , which has an external toothing 158a. The external toothing 158a is used to transmit the drive torque with the stationary bevel gear 156 inpatient admission 154 (see. 1 and 2 ) engaged.

The drive bevel gear 158 is set up for this, together with the rotor in the assembled state 120 around the first axis of rotation 122 and thus about inpatient admission 154 to rotate around (cf. 1 ). The inclination of the external toothing 158a causes the rotational movement about the first axis of rotation 122 at the same time a rotation of the drive bevel gear 158 around the second axis of rotation 134 .

The second cone is in the assembled state 158 doing so with the drive shaft 152 (see. 1 ) coupled that the drive shaft 152 together with the drive bevel gear 158 around the second axis of rotation 134 rotates.

Thus, by means of the rolling elements 124 a rotational movement of the rotor 120 around the first axis of rotation 122 causes which by means of the drive unit 150 on the drive shaft 152 is transmitted so that the nozzle head 130 around the first axis of rotation 122 and the second axis of rotation 134 rotates and the flowing fluid through the fluid outlet 132 in the radial direction about the first and the second axis of rotation 122 , 134 is distributed in a container for cleaning (cf. 1 ).

List of reference symbols

100

Cleaning device

110

casing

112

Fluid inlet

114

Inner wall

116

Rolling surface

116a

first section

116b

second part

118

cylindrical section

120

rotor

122

first axis of rotation

124

Rolling elements

130

Nozzle head

132

Fluid outlet

134

second axis of rotation

140

Flow channel

142

passage

150

Drive unit

152

drive shaft

154

hospitalized

156

Drive bevel gear

158

stationary bevel gear

160

Cage

162

partially cylindrical recording

164

straight wall section

166

opening

168

first central cylindrical opening

170

Cover element

172

Plurality of channels

174

second central cylindrical opening

180

first bearing ring

182

second bearing ring

184

third bearing ring

Claims (18)

Cleaning device (100) for cleaning a container, in particular orbital cleaner, comprising: - A housing (110) with a fluid inlet (112) for admitting a fluid, in particular a cleaning agent, - A rotor (120) which can be driven relative to the housing (110) in a rotary manner about a first axis of rotation (122), - A nozzle head (130) with a fluid outlet (132) for dispensing the fluid, in particular cleaning agent, the nozzle head (130) being mounted on the rotor (120) so as to be rotatable about a second axis of rotation (134), - A flow channel (140) for the fluid-conducting connection of the fluid inlet (112) and the fluid outlet (132), - a passage (142) which is set up to guide part of the flowing fluid to the rotor (120) in order to apply a drive torque and to drive the rotor (120) in rotation, and - A drive unit (150), which is coupled on the drive side to the rotor (120) and on the output side to the nozzle head (130) and is configured to transmit the drive torque of the rotor (120) to the nozzle head (130). Cleaning device (100) Claim 1 wherein the rotor (120) or the housing (110) has at least one rolling element (124), wherein the housing (110) or the rotor (120) has at least one rolling surface (116) arranged coaxially to the rotor (120), and the part of the flowing fluid is guided to the rotor (120) in such a way that the rolling element (124) is moved by the fluid along the rolling surface (116). Cleaning device (100) Claim 2 , wherein the rolling surface (116) is formed by an, in particular rotationally symmetrical, inner wall (114) of the housing (110) or an outer wall of the rotor (120) which is formed around the first axis of rotation (122) and which extends in the axial direction, wherein the rolling element (124) can be arranged radially inside the rolling surface (116) or radially outside the rolling surface (116). Cleaning device (100) Claim 2 or 3 , wherein the distance between the rolling surface (116) and the first axis of rotation (122) is not constant, so that the rolling surface (116) has at least one first section (116a) in which the distance decreases and has at least one second section (116b), in which the distance increases. Cleaning device (100) Claim 4 , wherein the rotor (120) has a plurality of rolling elements (124), and wherein the rolling surface (116) has a plurality of first sections (116a) in which the distance decreases and a plurality of second sections (116b), in which the distance increases, and always a first Section (116a) is arranged adjacent to a second section (116b). Cleaning device (100) according to one of the Claims 2 to 5 , wherein the distance between the rolling surface (116) and the first axis of rotation (122) can be described as a function A = sin (a). The cleaning device (100) according to any one of the preceding claims, wherein the passage (142) is fluidly connected to a pressure chamber for pressurized fluid, which is at least partially formed by the flow channel (140) and / or to a pressure chamber for pressurized fluid, which is at least partially formed by an interior of the rotor (120) is. The cleaning device (100) according to any one of the preceding claims, wherein the drive unit (150) comprises: - A drive shaft (152) for driving the nozzle head (130), which is arranged coaxially to the second axis of rotation (134) and is coupled to the rotor (120) in such a way that the drive shaft (152) with the rotor (120) around the first Axis of rotation (122) is driven, and - A receptacle (154) stationary relative to the first and second axis of rotation (134), the drive shaft (152) engaging with the stationary receptacle (154) in such a way that the drive torque of the rotor (120) is applied to the drive shaft (152) is transmitted and the drive shaft (152) rotates about the second axis of rotation. Cleaning device (100) Claim 8 , wherein the stationary receptacle (154) has a stationary bevel gear (158) which is arranged coaxially to the first axis of rotation (122) and tapered on the rotor side, and the drive unit (150) has a drive bevel gear (156) for torque-transmitting coupling with the stationary bevel gear (158) which is arranged coaxially to the second axis of rotation (134) on the drive shaft (152) and is designed to taper in the direction of the first axis of rotation (122). The cleaning device (100) according to any one of the preceding claims, wherein the flow channel (140) has a first cross-sectional area and the passage (142) has a second cross-sectional area, and the second cross-sectional area is smaller than the first cross-sectional area. Cleaning device according to Claim 9 wherein the housing (110) has a cylindrical section (118) which is arranged coaxially to the first axis of rotation (122) and which forms a section of the flow channel (140), and wherein the stationary bevel gear (158) is at a rotor-side end of the cylindrical section ( 118) is formed. Cleaning device (100) according to one of the preceding claims, wherein the cleaning device further comprises a cage (160) for guiding the rolling element (124) in the radial direction, which cage is assigned to the rotor (120) and is arranged coaxially to the first axis of rotation (122), and wherein the cage (160) is set up to rotate with the rolling element (124) about the first axis of rotation (122). Cleaning device (100) Claim 12 , wherein the cage (160) is at least partially received in the housing (110) and the rolling element (124) is guided through the cage (160) in such a way that the rolling element (124) in the radial direction between the cage (160) and the Rolling surface (116) is movable. The cleaning device (100) according to any one of the preceding claims, wherein the cage (160) has a plurality of receptacles (162) which are arranged along an outer circumference of the cage (160) and are each designed to at least partially receive a rolling element (124) and to lead in the radial direction. Cleaning device (100) according to one of the preceding claims, wherein the rolling elements (124) are cylindrical and the receptacles (162) are each partially cylindrical, corresponding to the rolling elements (124). Cleaning device (100) according to one of the preceding claims, wherein the receptacles (162) each have an opening (166) facing away from the housing (110), which opening can be connected to the passage (142) in a fluid-conducting manner. Cleaning device (100) Claim 16 , wherein the cleaning device further comprises a cover element (170) which is assigned to the rotor (120) and is set up to close the openings (166), and wherein the cover element (170) has a plurality of channels which fluid-conductively with the passage (142) are connectable. Method for driving a cleaning device, in particular a cleaning device (100) according to one of the preceding claims, wherein the method comprises the steps: - Letting a fluid, in particular cleaning agent, into a housing (110), - Guiding part of the flowing fluid to a rotor (120), - driving the rotor (120) by the part of the flowing fluid about a first axis of rotation (122) relative to the housing (110), - Providing a drive unit (150) which is coupled on the drive side to the rotor (120) and on the output side to a nozzle head (130), - the drive unit (150) transmits the torque of the rotor (120) to the nozzle head (130), and - Dispensing the fluid through a fluid outlet (132) of the nozzle head (130).

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