CN1874704A

CN1874704A - Wash brush

Info

Publication number: CN1874704A
Application number: CNA2004800318540A
Authority: CN
Inventors: J·施密德
Original assignee: Alfred Kaercher SE and Co KG
Current assignee: Alfred Kaercher SE and Co KG
Priority date: 2003-10-29
Filing date: 2004-10-21
Publication date: 2006-12-06
Also published as: WO2005041712A1; EP1677646B1; DE10351880B3; EP1677646A1; US20060242774A1; EP1677646B8

Abstract

The invention relates to a washing brush for cleaning objects, having a rotatably mounted brush head which can be driven, via a gear mechanism, by a drive wheel, which drive wheel can be subjected to the action of pressurized cleaning liquid. In order to develop the washing brush such that a high torque can be imparted to the brush head at low speed, it is proposed according to the invention that the gear mechanism comprise two internally toothed hollow wheels oriented coaxially in relation to one another, one of the hollow wheels being mounted in a rotatable manner and the other hollow wheel being fixed, and at least one externally toothed coupling element, which is in operative connection with the drive wheel and simultaneously meshes with the two hollow wheels, the two hollow wheels having different numbers of teeth.

Description

Cleaning brush

Technical field

The present invention relates to a kind of cleaning brush that is used for cleaning objects, it has the brush of a rotatable supporting, and this brush can be via transmission device by a drive wheel, and this driving wheel can be loaded by the clean liquid of the effect of being stressed.

Background technology

By the known a kind of such cleaning brush of US-A-4461052.This cleaning brush is used for cleaning objects, particularly automobile.A clean liquid preferred water can be applied on the surface to be cleaned by means of it, can add chemical substance, and can mechanically clean the surface by means of rotatable brush simultaneously in order to improve the described water of cleaning effect.Cleaning brush can make the clean liquid effect of being stressed as the accessory of high-pressure cleaning device by it.The clean liquid of the effect of being stressed is defeated by cleaning brush and is pointed to driving wheel, thereby make the driving wheel rotation simultaneously, this rotatablely moves and can be delivered to brush via transmission device.

Described document US-A-4461052 describes a kind of cleaning brush, wherein adopt the planetary gear transmission, it has a sun gear by drive wheel, and one is connected in the rotatable interior internal gear of tooth and the planetary gear that at least one is meshed with sun gear and internal gear made of brush.The planetary gear transmission can reduce the rotating speed of turbine, thereby the rotating speed of brush is lower than the rotating speed by the clean liquid driving wheel that makes it to rotate of the effect of being stressed.

What be worth pursuit is can provide a high torque for the brush of rotation, thereby the user can be pressed to cleaning brush surface to be cleaned, and not interrupt the danger that rotatablely moves of brush.

Summary of the invention

The objective of the invention is, further the cleaning brush of the described type of exploitation beginning makes it provide higher torque for brush under the slow-speed of revolution.

This purpose reaches like this according to the present invention in the cleaning brush of same type, it is the internal gear that transmission device comprises the interior system tooth of two mutual coaxial orientations, one of them internal gear be rotatable supporting and another internal gear is fixed, and the joint element of the outer system tooth that at least one is connected with the driving wheel effect is meshed with two internal gears simultaneously, and described two internal gears have the different numbers of teeth.

Adopt a transmission device according to the present invention in cleaning brush, this transmission device has the internal gear of system tooth in two, at least one joint element lift-over simultaneously on described internal gear.One first internal gear is set regularly, and coaxial in the rotatably mounted secondary annulus of first internal gear.The number of teeth of two internal gears is different.Because at least one joint element is meshed with two internal gears simultaneously, because the number of teeth difference that exists causes the relative motion of two internal gears when joint element rotates.Rotatable thus internal gear is realized rotatablely moving, and this rotatablely moving can be delivered to brush.The fact shows, can realize big deceleration whereby, simultaneously can be with high transmission of torque to brush.

Driving shaft is connected and can constitutes in various modes with effect between the joint element.For example joint element can constitute gear, and its rotation remains on the driving wheel regularly.But advantageously, joint element is connected with the driving wheel effect via an intermediate gearing.So for example can set, at least one joint element constitutes planetary gear, and it is meshed by the sun gear of drive wheel with two internal gears with one.In a kind of such form of implementation, comprise that by use the planetary transmission realization first of a sun gear and at least one planetary gear is slowed down, and by using two internal gears to realize second deceleration, the number of teeth of described two internal gears is different.

Comprise that fixing and an a planetary transmission rotatable internal gear are for example known by open text DE195 25 831 A1 as so-called Wolfrom transmission device for a person skilled in the art.The fact shows, a kind of cleaning brush with such Wolfrom transmission device is cleaning objects especially effectively, and wherein the user can be with cleaning brush towards surface pressure to be cleaned, and does not interrupt the danger that rotatablely moves of brush.

Can guarantee by the Wolfrom transmission device simultaneously that brush only turns round with the slow-speed of revolution.In order to reach the particularly cleaning completely of automobile of object, this proves favourable.Because the obtainable slow-speed of revolution also avoids clean liquid to spray from brush laterally.

As mentioned above, the clean liquid by the loading effect of being stressed makes the driving wheel rotation.Set in this respect in a kind of form of implementation simple in structure, driving wheel constitutes turbine.In this case when adopting a planet gear drive advantageously, turbine is connected with sun gear with being integral.Like this, for example can set, turbine has the turbine disk of a rotatable supporting, and this turbine disk deviates from a side bearing turbo blade of sun gear in alignment with the rotation ground supporting sun gear of the turbine disk and at it.The latter preferably is connected with the turbine disk with being integral.

In order to reach good especially run-in synchronism, advantageously, transmission device has at least two joint elements, its form be two mutually at diametrically opposite planetary gear.

Fixing internal gear remains on the support plate and rotatable internal gear remains on the cover plate in a kind of preferred form of implementation, wherein two internal gears and support plate and the cover plate qualification one transmission space that holds at least one joint element.Such form of implementation can realize a special compact structure form, can reach a high mechanical bearing capacity simultaneously.Avoid injection water and dust may invade transmission device in addition whereby.

Preferred fixing internal gear is connected with support plate with being integral.Fixed annulus can constitute a basin connected in star with support plate, can insert at least one joint element therein.

In addition advantageously, rotatable internal gear is connected with cover plate with being integral.Rotatable internal gear can constitute transmission device lid with cover plate, and it overlaps at least one joint element.

As mentioned above, advantageously, driving wheel constitutes the turbine with a turbine disk.The turbine disk is parallel to the support plate orientation and has turbo blade in its side that deviates from support plate in a kind of preferred form of implementation.

In this respect advantageously, the turbine disk is attached on the support plate slidably, wherein particularly advantageously is, the director element that the turbine disk and support plate have a plurality of mutual interlockings is gathering sill and guide rib for example.This can make the turbine disk lead on support plate, obtains the sealing function by the labyrinth sealing pattern simultaneously.Like this, for example can set, a plurality of gathering sills that are shaped in support plate insert a plurality of guide ribs that link to each other with the turbine disk therein with being integral.

In a kind of preferred form of implementation, it is one coaxial in the output shaft of two internal gear orientations that transmission device has, and this output shaft passes sun gear and not only is fixedly connected with rotatable internal gear but also with the brush rotation.Rotatablely moving of rotatable internal gear can be delivered to brush via output shaft.Make the coaxial structural form that can have a compactness in the setting of two internal gears of output shaft in this case.

Preferred output shaft is bearing on the cover plate, and this cover plate and rotatable internal gear are rigidly connected.In this respect advantageously, internal gear, cover plate and output shaft interconnect with being integral.

A kind of favourable form of implementation of cleaning brush of the present invention has extra high mechanical bearing capacity, wherein cleaning brush comprises a housing with diapire, this diapire is parallel to a wall and with interval being arranged of transmission device, and wherein this wall and diapire axially limit a driving space that holds driving wheel.Can adopt an annular lip that axially stretches out in this wall and/or diapire in order radially limit to drive the space, it has one and is used for cleaning agent is imported the opening that drives the space.The wall of this transmission device can for example constitute the support plate of supporting fixed annulus.

For example can set, driving wheel constitutes the turbine with the turbo blade that is provided with in driving the space.

Output shaft passes the port that drives a space and a diapire in a preferred form of implementation, and can removably be connected in brush at its end regions that stretches out in diapire.This can assemble cleaning brush of the present invention simply, for example brush in axial direction can be installed in the end regions that stretches out in diapire of output shaft.

In order to reach special effective cleaning, advantageously, brush has a brush dish, fixes first and second groups of cleaning bristles on this brush dish, and wherein first group of cleaning bristle rotation of being parallel to brush is directed and second group of cleaning bristle favours the rotation orientation of brush.The fact shows, can improve mechanical cleaning performance by the form of implementation of such brush.

Advantageously, the brush dish is attached on the diapire of housing of cleaning brush slidably.At this advantageously, brush dish and diapire have the director element of mutual interlocking, for example a guide rib that inserts in the gathering sill of attaching troops to a unit.Preferred guide rib is arranged on deviating from the upside that cleans bristle and inserting in the gathering sill that is shaped of brush dish in the diapire of downside at housing.

Description of drawings

The following description of a kind of preferred form of implementation of the present invention is used for more detailed description in conjunction with the accompanying drawings.Wherein:

Fig. 1: according to the bottom view of cleaning brush of the present invention;

Fig. 2: the side view of cleaning brush;

Fig. 3: the cutaway view of cleaning brush;

Fig. 4: the cutaway view of the drive unit of cleaning brush; And

Fig. 5: along the cutaway view of the line 5-5 among Fig. 4.

The specific embodiment

Schematically illustrate a cleaning brush of totally representing with Reference numeral 10 in the accompanying drawing, this cleaning brush for example can be used as the accessory of a high-pressure cleaning device and can be connected in the high-pressure hose of high-pressure cleaning device.

Cleaning brush 10 has a housing 12, and it comprises a diapire 13 and a lid 14, and they hold a drive unit 16 in the centre.One input channel 18 is installed on lid 14 in the side, and this input channel is provided with a connector 19 that constitutes bayonet coupling at its free end, is used for the own known spray gun that cleaning brush 10 detachably is connected in not shown high-pressure cleaning device.

At the downside of the away from cover 14 of diapire 13, cleaning brush 10 has a removable brush 21, and this brush comprises a brush dish 22 and first group of cleaning bristle 23 and second group of cleaning bristle 24.Brush 21 can be parallel to rotation 26 orientations around the cleaning bristle of a rotation 26 rotations and the first cleaning bristle pack, and the cleaning bristle of the second cleaning bristle pack favours rotation 26 directed and directed outward.This can be clear that from Fig. 3 especially.

The driving wheel that comprises a transmission device 28 and a turbine 30 forms by the drive unit 16 of lid 14 coverings.The latter has a turbine disk 31 that is parallel to diapire 13 orientations of housing 12, stretches out a plurality of turbo blades 32 by it along the axial direction towards diapire 13, and they are connected with the turbine disk 31 with being integral.

Turbine 30 can be rotated to support on the output shaft 34 of transmission device 28, this output shaft passes a center port 37 of diapire 13 and constitutes polygonal short column with a lower end region 35, brush dish 22 can be installed thereon be fixedly coupled with the rotation that forms between output shaft 34 and the brush dish 22.

Output shaft 34 is connected with the cover plate 39 of transmission device 28 in its upper end region away from brush dish 22 with being integral, cover plate 39 is provided with one on its outward flange can be with the internal gear 41 of cover plate 39 and output shaft 34 rotations, and it has the system tooth that comprises a plurality of gear teeth 42 shown in a Fig. 5 in the inboard.

Transmission device 28 comprises that one is parallel to cover plate 39 and the support plate that is arranged 44 with interval, the turbine disk 31 is attached on the downside away from cover plate 39 of this support plate slidably, wherein in support plate 44 below that is towards the turbine disk 31 a plurality of gathering sills 45 that are shaped, insert the guide rib 47 of a plurality of correspondences in described gathering sill, described guide rib is connected with the turbine disk 31 with being integral.Therefore the support plate 44 and the turbine disk 31 constitute a labyrinth sealing and invade transmission device 28 to prevent liquid and dust.

Support plate 44 is provided with that be permanently connected with its rotation, a fixing internal gear 49 on its outward flange, it axially aligns the system tooth that is provided with and has in the inboard more than one gear teeth 50 in rotatable internal gear 41.Support plate 44 has the through hole 52 at a center and constitutes a gear mechanism housing with cover plate 39 and with rotatable internal gear 41 and fixed annulus 49, it surrounds a transmission space 54, inserts one and pass sun gear 56 central through hole 52 and that be connected with support plate 44 with being integral in this transmission space.Form two and mutually be meshed with sun gear 56 at two joint elements of diametrically opposite

planetary gear

58,60, each planetary gear is arranged on the inside in transmission space 54 and not only for good and all is connected with a joggle with the gear teeth 42 of rotatable internal gear 41 but also with the gear teeth 50 of the internal gear of fixing 49.

The number of teeth 42 of the interior system tooth of rotatable internal gear 41 is different from the number of teeth 50 of the interior system tooth of fixing internal gear 49.

Support plate 44 is provided with an annular lip 62 towards brush 21 on it deviates from the downside of fixed annulus 49, coaxial in input channel 18 shapings one pipe joint 63 on this annular lip, this pipe joint holds a nozzle 65, and this nozzle inserts an import 68 that is shaped with a nozzle head 66 in annular lip 62.Nozzle head 66 monolithically is connected for 65 one-tenth with nozzle.Annular lip 62 and support plate 44 and brush dish 22 limit a driving space that constitutes turbine space 70, can spray into cleaning agent by means of nozzle 65 in this driving space, described cleaning agent leaves turbine space 70 via the port 72 that is shaped and therefore can pass through between first and second groups of

cleaning bristles

23 and 24 in brush dish 22.

Can regulate detergent delivery continuously by means of the control valve 74 that on the height of nozzle 65, is provided with, wherein can between a minimum dimension and a full-size, change the outlet cross section of nozzle head 66.Therefore the outlet cross section of nozzle head 66 is selected greatly more, and the speed that is flushed to the clean liquid on the turbo blade 32 is low more, and the rotating speed of turbine 30 is low more.Therefore, can regulate rotating speed continuously by the selection of outlet cross section.If cleaning brush 10 is used for a high-pressure cleaning device, wherein by means of a syringe a kind of chemical substance is mixed mutually with clean liquid in order to improve cleaning effect, then also can regulate the amount of the chemical substance of mixing, because when the bigger outlet cross section of nozzle head 66, a lower pressure occurs in the downstream of syringe by means of control valve 74.Consequently on syringe, produce a bigger pressure drop, and this causes mixing more substantial chemical substance again.The minimum dimension of the outlet cross section of nozzle head 66 is preferably selected to, and makes when the outlet cross section is adjusted to minimum dimension such pressure condition to occur, does not promptly in fact have chemical substance to mix in syringe.Therefore the user can select between two kinds of duties by control valve 74 corresponding adjustings, one, and therefore the mixed chemical material also can make an object to be cleaned spume; Its two, do not have the mixed chemical material, therefore object is spumed.

Can will be subjected in cleaning brush 10 operating process the clean liquid preferred water of high pressure effect aim at turbo blades 32 by means of nozzle 65, thereby the turbine 30 that makes rotatable supporting be integral sun gear 56 rotations that are connected with it.Consequently two

planetary gears

58,60 lift-over on the

gear teeth

42 and 50 of rotatable internal gear 41 and fixing internal gear 49.And because the number of teeth difference of system tooth causes the relative motion of two

internal gears

41 and 49 in two, it is poor corresponding to the number of teeth when complete one of

planetary gear

58,60 changes.Internal gear 49 rotation is fixedly connected to support plate 44, thus the relative motion of two gears cause rotatablely moving of rotatable internal gear 41 and also cause thus cover plate 39 with the rotatablely moving of its output shaft that is connected 34 of one-tenth.The very big decline of turbine 30 rotating speeds can be reached by the application of fixed annulus 49 and rotatable internal gear 41 according to the selection of the number of teeth difference between the system tooth in two, a very big torque output shaft 34 can be delivered to from turbine 30 simultaneously.

As mentioned above, output shaft 34 is permanently connected with brush 21 rotations, thereby can make brush with lower rotating speed and high torque rotation corresponding to output shaft 34.

Can mechanically clean a surface to be cleaned, for example surface of an automobile by means of rotatable brush 21.Surface to be cleaned is subjected to loading from the clean liquid that turbine space 70 flows out via port 72 simultaneously.This can realize the effectively cleaning on surface on the whole, and wherein the user can be pressed onto cleaning brush 10 on the surface to be cleaned with very big power, and does not interrupt the danger that rotatablely moves of brush 21.

Claims

1. cleaning brush that is used for cleaning objects, it has the brush of a rotatable supporting, and this brush can be via transmission device by a drive wheel, and this driving wheel can be loaded by the clean liquid of the effect of being stressed; It is characterized in that, transmission device (28) comprises the internal gear (41,49) of the interior system tooth of two mutual coaxial orientations, one of them internal gear (41) be rotatable supporting and another internal gear (49) is fixed, and joint element (58, the 60) while that at least one is connected with driving wheel (30) effect, that make tooth outward is meshed with two internal gears (41,49), and described two internal gears have the different numbers of teeth.

2. according to the described cleaning brush of claim 1, it is characterized in that, described at least one joint element constitutes planetary gear (58,60), and this planetary gear is meshed by the sun gear (56) of driving wheel (30) driving and with described two internal gears (41,49) with one.

3. according to claim 1 or 2 described cleaning brush, it is characterized in that described driving wheel constitutes turbine (30).

4. according to the described cleaning brush of claim 3, it is characterized in that turbine (30) is connected with sun gear (56) with being integral.

5. according to claim 2,3 or 4 described cleaning brush, it is characterized in that, transmission device (28) comprise form be two mutually at two joint elements of diametrically opposite planetary gear (58,60).

6. according to one of an aforesaid right requirement described cleaning brush, it is characterized in that, fixing internal gear (49) remains on that a support plate (44) is gone up and rotatable internal gear (41) remains on the cover plate (39), described two internal gears (41,49) and support plate and cover plate (44,39) limit a transmission space (54), and this transmission space holds described at least one joint element (58,60).

7. according to the described cleaning brush of claim 6, it is characterized in that fixing internal gear (49) is connected with support plate (44) with being integral.

8. according to claim 6 or 7 described cleaning brush, it is characterized in that rotatable internal gear (41) is connected with cover plate (39) with being integral.

9. according to claim 4,5 or 6 described cleaning brush, it is characterized in that, driving wheel constitutes has a turbine (30) that is parallel to the directed turbine disk (31) of support plate (44), and this turbine disk (31) has turbo blade (32) in its side that deviates from support plate (44).

10. according to the described cleaning brush of claim 9, it is characterized in that the described turbine disk (31) abuts on the support plate (44) slidably.

11., it is characterized in that the turbine disk (31) and support plate (44) have the director element of mutual interlocking according to claim 9 or 10 described cleaning brush.

12. according to one of claim 2 to 11 described cleaning brush, it is characterized in that, transmission device (28) have one coaxial pass sun gear (56) and rotate in directed this output shaft of output shaft (34) of two internal gears (41,49) with described rotatable internal gear (41) and described brush (21) be fixedly connected.

13. according to the described cleaning brush of claim 11, it is characterized in that, output shaft (34) be bearing in one with the rigidly connected cover plate of rotatable internal gear (41) (39) on.

14. according to one of an aforesaid right requirement described cleaning brush, it is characterized in that, cleaning brush (10) has a housing (12) that comprises a diapire (13), this diapire is parallel to a wall (44) and the setting of turning up the soil with interval of transmission device (28), and its mesospore (44) and diapire (13) axially limit a driving space (70) that holds driving wheel (30).

15., it is characterized in that driving wheel constitutes the turbine (30) with the turbo blade (32) that is provided with according to the described cleaning brush of claim 14 in driving space (70).

16. according to claim 14 or 15 described cleaning brush, it is characterized in that output shaft (34) passes the port (37) that drives space (70) and diapire (13) and can removably be connected in brush (21) in it stretches out in the end regions (35) of diapire (13).

17. according to one of an aforesaid right requirement described cleaning brush, it is characterized in that, brush (21) has a brush dish (22), fix first and second groups of cleaning bristles (23,24) on this brush dish, it is directed and second group of cleaning bristle (24) favours rotation (26) orientation that wherein first group of cleaning bristle (23) is parallel to the rotation (26) of brush (21).

18., it is characterized in that brush dish (22) abuts on the diapire (13) of housing (12) of cleaning brush (10) slidably according to the described cleaning brush of claim 17.

19., it is characterized in that the diapire (13) of brush dish (22) and housing (12) has the director element (76,77) of mutual interlocking according to the described cleaning brush of claim 18.