HUE032546T2

HUE032546T2 - Device for rotating a hose or similar

Info

Publication number: HUE032546T2
Application number: HUE13002225A
Authority: HU
Inventors: Karl Wiedemann
Original assignee: Karl Wiedemann
Priority date: 2012-04-27
Filing date: 2013-04-26
Publication date: 2017-10-30
Also published as: PL2662156T3; DE102012008558B4; EP2662156A3; EP2662156B1; EP2662156A2; DE102012008558A1

Description

[0GG1J This invention relates to a device for a nose or similar wpicn is unwmdabte írom a reel in particular a rinsing hose of a channel cleaning and/or inspection device, which is insertable into a channel and suppliafoie with high pressure rinsing water, about its longitudinal axis comprising a rotating unit arranged downstream of the reel, through which the hose extends. This invention further relates to a channel cleaning vehicle comprising such a device.

[0002] An arrangement of this kind is known from WO 2011/10 40 21 A2. In this known arrangement the rotating unit is associated with a stationary cover of the top opening of a channel shaft through which the rinsing hose extends and provided with pressure roliers evenly distributed over the circumference of the rinsing hose, which are received on a joint carrier which is twistabie relative to the stationary cover. By means of the said rotating unit not only the loose end of the rinsing hose, arranged downstream of the rotating unit and inserted in the channel, is twisted, but also the loose end arranged upstream of the said •rotating unit leading to a unit which is stationary relative to the direction of rotation to: which unit the rinsing hose is connected and which has to be twisted in itself when the front loose end of the rinsing hose is twisted. Since the rinsing hose is supplied with high pressure water having a high pressure of up to 150 bar, the rinsing hose exhibits a great measure of stiffness during operation, so that twisting is not possible at all or only to a comparatively small extent. As a consequence thereof, the front loose end, which is lowered into the channel is not twistabie at all or only to a small extent. The front end of the rinsing hose is, as a rule, connected with a channel nozzle provided with jet nozzles, which is moved forwards in the channel by the effect of repulsion and can be deflected laterally by twisting the hose of about 90* and thus be guided into a lateral channel branch, in order to achieve good steering properties and curve maneuverability of the rinsing hose in the case of several subsequent channel turnoffs, larger angles of rotation and/or fuil rotations of the rinsing hose are required for which the known arrangement is not suitable.

[Ö0Ö3J JP H 08 257 522 A shows a channel cleaning vehicle in which a reel associated with a rinsing hose comprising a downstream hose guide are received on a carrier arranged on the rear of the vehicle and rotatable about a horizontéi axis. By rotating the said carrier the rinsing hose running off the reei is rotated about its longitudinal axis.

[0004] JP 2001 34 20 61 A shows a device for channel cleaning comprising a rinsing hose; which is insertabie Into the channei and suppliable with high pressure water, such rinsing hose being provided with a channei nozzle at Its front end, which, through the effect .of the water jets discharging from the channel nozzle, is moved forwards and rotated independently from the rinsing hose. The latter runs over a motor-driven drum and is thus not rotatable.

[0GO5] AT 403 712 8 shows a channel cleaning vehicle whose rinsing hose is receivable on a first reel which is followed by a second, smaller reel which is received on a frame rotatably arranged about a vertical axis on the rear end of the vehicle. By means of the smaller reel, around which the rinsing hose twines at least once, a reliable rinsing hose advance is intended. For this reason it is necessary that the smaller reel is steadily twined around by the rinsing: hose during operation, [0006] On the basis of the foregoing it is the object of the present Invention to improve a device as described initially above using simple and low-cost means in such a way that a comparatively large angle of rotation of the rinsing hose can be achieved while a simple design is ensured, 10007] According tp#* Invention.,.ifS object is achieved in that the rotating unit comprises a drum receiving a small hose stock* and further a deflection roller associated with said dmm on its outlet side, v#ieh is received on a rotating arm which is rotatable about an axis coaxial to the axis of the dmm.

[0ÖÖ8J In this arrangement it is possible that the deflection roller, over which the rinsing hose unrolls into the channel, is moved about the circumference of the drum by rotating the rotatmg arm receiving the said defection roller while Only the hose stock received thereon is correspondingly reduced and/or enlarged. At the same time, due to the shifting of the deflection roller on the circumference of the drum following a rotation of the rotating arm, the rinsing hose unrolling into the channel via the deflection rdlfer also undergoes the same shift, and thus a rotation about its longitudinal axis by an angle corresponding to the angle of the rotating arm receiving the deflection roller, without a twisting of the loose end of the rinsing hose arranged upstream of the rotating unit [0009] Advantageous embodiments and expedient developments of the main-claim measures will be evident from the sub-claims, [0010] Thus* the rotating arm may in an advantageous manner be motor driven in the direction of rotation* which not only ensures a great measure of user friendliness and relief for the operating staff but also easy control, [0011] A further advantageous measure may consist in that the drum is arranged iri overhung manner and that the rotating arm is positioned on the support free side of the drum. This, in an advantageous manner, permits the unimpeded rotatabliity of the rotating arm by 380* and more.

[0012] in arrangements where the hose is unrolled downwards, as is the case of a rinsing hose inserted into a channel, the drum is expediently arranged with vertical axis and the deflection roller preferably with horizontal axis arranged transversely to the axis of the drum, with the drum being expediently positioned above the rotating arm holding the deflection roller resulting in an obvious arrangement ensuring high clarity and a great measure of user friendliness of the example described above.

[0013] Advantageously, provision may bo made for an overhung axle on which the drum and the rotating arm are rotatably received independently from each other, which results in a vary simple and compact arrangement.

[0014] A further expedient measure may consist in that the rotating arm is attached to a drivable shaft engaging: a central axiai bore of the axle and is provided on its side away from the rotating arm with a drive unit acting together with a drive unit. This even enhances the advantage described above. £0015] In a further development of the main-claim measures, the axle may be attached to a cantilever beam in a suspended manner which is provided with a drive unit on a side away from the drum. This facilitates ease of access to the drum as well as unimpeded rotatafoility of the rotating arm carrying the deflection roller.

[0016] In the case of a channel cleaning vehicle comprising a reel attached thereto and associated with the rinsing hose, the rotating unit together with the reei may also be attached to the vehicle, thus resulting in a particularly compact and user friendly arrangement.

[0017] Further advantageous embodiments and expedient developments of the main-claim measures will be evident from the remaining sub-claims and from the description of an example given below in conjunction with the accompanying drawtng(s).

[001::8] in these drawings

Figure 1 shows a side view' of a device in accordance with the invention;

Figure 2 shows a channei section with a rinsing hose inserted therein;

Figure 3 shows a top view on the arrangement according to Figure 1; and

Figure 4 shows a clarification of the mode of operation of the arrangement, according to the invention by means of a cross section of the rinsing hose being unrolled intoThe channel, [001 l| fhe present invention is mainly used for a rinsing hose of a channel cleaning and/or inspectionarrangement supplied with high pressure water. But also other elements having a certain stiffness, which can be unrolled from a reel, extending in longitudinal direction, suoh as thick cables or ropes, may be used.

[0020] Figure 1 shows a rinsing hose 2. insertable into a channel 1 which is indicated by a shaft and which, in operation, is supplied with high pressure water in a manner known to the art. The rinsing hose 2 can be unrolled from an associated reei 3 or rolled up and is deflected in downward direction by a deflection roller 4, positlonahie above the channei opening. The reel 3, enabling the reception of a large hose stock having a iength corresponding to the length of several channel sections limited by channel shafts, is received on an associated reei carrier 5 and in the example shown is attached to a channel cleaning vehicle 6 via the said carrier 5, Indicated in this example by a barrel, which as a rule is provided with a high pressure pump, via which the rinsing tube 2 is suppliable with high pressure rinsing water. As a rule, the reei 3 is drivable by means of a motor in the direction of rolling up the hose, in the direction of unrolling the hose it suffices, as a rule, to brake the reel 3 against the tension acting on the rinsing hose 2. However, a drive would also be conceivable.

[QÖ21J The rinsing hose 2. as can be seen In Figure 2, is provided with a channel nozzle 7 at its front end, which is equipped with jet nozzles 8, Provision may be made for jet nozzles 8 in forward or backward direction from which in operation mode a high pressure rinsing wafer jet 9 discharges. A water jet directed forward may serve to loosen dirt residue. The water jets discharging in backward direction cause flotation of the ioosened dirt as well as a repulsion drive of the channel nozzle 7 which as a consequence thereof pulls forward the rinsing hose 2 against the brake effect acting on the reei 3. Provision may also be made for a lighting or camera device on the channel nozzle 7 which represents the situation in the channei on a screen. Expediently, the rear jet nozzles may be arranged in unsymmetricai order relative to the jet axis, so that as a consequence a force acting on the channel nozzle 7 in upward direction is generated in addition to the propulsion force, so that the channei nozzle 7 is at a desired distance from the channei bottom. 10022] During the cleaning or inspection of channels it often occurs that the channel nozzle 7 has to be inserted into a channel turnoff 10 laterally branching off from the main channel. For this purpose the rinsing hose and thus the channei nozzle 7 attached thereto are twisted about the longitudinal axis so that the rear jet nozzles 8, arranged in unsymmetricai order relative to the nozzle axis, cause a force acting laterally and thus the required deflection.

[0023] in order to effect the respective twisting of the rinsing hose 2, as is further evident from Figure 1, provision is made for a rotating unit 11 arranged downstream of the reel 3, through which extends the rinsing hose 2. The rotating unit 11 comprises a drum 12, which is arranged downstream of the reel 3, receiving a smali hose stock of oniy a few windings* and the above mentioned deflection roller 4 which is associated with the drum 12 and arranged on the outiét side thereof, in this arrangement the deffectlen roller 4 is expediently aligned t&ngehtiiiiy relative to the drum circumference, so that the rinsing hose 2, unrolling from the drum 12;, aocuritply arrives on the detection roller 4 in straight running direction and vice verté·. The drum 12 may exhibit a smaller diameter than the reei 3, However, it has to be ensured that the bending strain of the rinsing hose 2 twining about the said reel 3 is Within permissible limits. (0024] The deflection roller 4, which is expediently arranged with its axis transverse to the axis of the drum 12, is freely received rotatably on a rotating arm 13 which in turn is rotatable about an axis that is coaxiaiiy positioned relative to the middle axis of the drum 12, whereby the deflection roller 4 can be guided about the said drum 12 at a constant distance to the circumference of the drum 12 in the example shown the middle axis of the drum 12 is vertical. The same applies correspondingly to the axis of rotation of the rotating arm 13. in the example shown the axis of the deflection roiier 4 extending transversely to the axis of the drum correspondingly extends horizontally, in the illustrated example the rotating arm 13 receiving the deflection roller 4 is arranged below the vertically arranged drum 12, thus facilitating the downward insertion of the rinsing hose 2 into the channel 1.

[0025] In order to effect a twisting of the rinsing hose 2 about its longitudinal axis and thus a corresponding twisting of the channel nozzle 7, the rotating arm 13 is twisted about its axis by an angle corresponding to the desired twisting angle, whereby the deflection roller 4 is shifted at the circumference of the daim 12 by a corresponding angle, whereby a certain length of the rinsing hose 2 corresponding to the arc length travelled by the rotation of the deflection roller 4 is unrolled from the drum 12 and/or rolled up the same. At the same time the rinsing hose 2 undergoes a rotation about an angle corresponding to the angle of twisting of hie rotating arm 13, as is described in the illustration below. In Figure 3 a start position of the rotating arm 13 and thus the deflection roller 4 is indicated by a oerilriuOus line, A position which is twisted by 90° relative to the said start position is indicated by broken lines. By rotating the rotating arm 13 and thus the deflection roller 4 about ÍP the rinsing hose 2, too, is rotated by 90*. This is clearly indicted by the marking, as illustrated by Figure 4. associated with the rear side away from the deflection roller 4 of the rinsing hose 2 being unrolled from the deflection roller 4, [0026] The above mentioned start position is to be associated with the marking 14 pointing towards the bottom right in Figure 4. In the course of the above mentioned rotation of the rotating arm 13 to the position which is indicated by broken lines the rear of the rinsing hose 2 away from the deflection roiier 4 moves to the position of the marking 14a which in Figure 4 points to the top right. In the illustrated example, the positions 14 and 14a are mutually offset by 90° relative to each other which corresponds to the angle of rotation of the rotating arm 13 between the positions shown in Figure 3. It goes without saying that large and small angles of rotation and also one or several full revolutions are possible.

[ÖG27] By the rotation of the rotating arm 13 about the axis which is coaxial with the middle axis of the drum 12 the deflection roller 4, as was stated before, is shifted by the desired angle of rotation at the circumference of the drum 12, whereby a corresponding part of one or several rinsing hose windings received on the drum 12 is unrolled or rolled up. The rinsing hose stock received on the drum 12 correspondingly comprises at least a certain number of windings corresponding to the number of desired full revolutions of the rinsing hose 2. The possibility of carrying out one or several full revolutions in an advantageous manner opens up the possibility of inserting the channel nozzle 7 into several subsequent channel turnoffs 10 and/or carrying out a spiral movement.

[0028J Expediently, the rotating arm 13 is motor-dlivable. For this purpose provision is made for a drive motor 15 which may be expediently designed as a multiphase motor. The latter can be automatically controlled by means of a safety switch using channel plans and/or photos taken in the channel. The drum 12 does not require any drive. The said drum 12 may be received freely rotatable on an associated, stationary axle 16 and is carried along by the rinsing hose 2 twining around the said axle in the direction of rotation, Expediently, the axle 18 is designed as a hollow axle, as can be seen in Figure 1, which is provided with a central axial bore, through which extends a shaft 17 carrying the rotating arm 13 on an end projecting out from the axle 18, whose axis of rotation: correspondingly extends coaxially to the middle axis of drum 12, in the example shown, the axie 18 is arranged with vertical middle axis which correspondingly also applies to the drum 12 and the shaft 17 and correspondingly to the rotating axis of the rotating arm 13, [0029] in the example shown in accordance with Figure 1 the axie 18 is received on a cantilever beam 18 in a suspended manner overlapping the drum 12 and with its upper end is attached hereto; This results correspondingly in an overhung arrangement of the axle 18 and thus also of the drum 12 received thereon, in the example shown the shaft 17 carrying the rotating arm 13 projects from the axle 18 downwards, resulting In the rotating arm 13 and the drum 12 being arranged on top of each other, with the drum 12 being provided on top and the rotating arm 13 being provided below on the support-free side of the drum 12 and/or the axle 18 receiving the said drum 12. This arrangement ensures that the rotating arm 13 and with the latter the deflection roller 4 received on the said rotating arm 13 may be unlmpedediy rotated by more than 380 Λ below the drum 12. The rotating arm 13 may be provided at its free end with a fork for receiving the deflection roller 4. in the example illustrated, the rotating arm 13, as can best be seen from Figure 3, is designed as a two-arm angle bracket whose arm away from its axis of rotation carries at Its free end the deflection roller 4 arranged with its axis parallel hereto thus facilitating an approximate tangential alignment of the deflection roller relative to the circumference of the drum 12.

[0030] in the example illustrated, the drivabie shaft 17, in the region of the end opposite the rotating arm 13, that is to say top end, is provided with a drive unit 19 designed in this example as a gear wheel which acts together with the motor 15 via a circulating element 20, in this example, having the form of a chain. The motor, correspondingly, is arranged on the upper side of the cantilever beam 18. instead of a motor turning drive of the rotating arm 13 and/or the shaft 17 it would of course also be conceivable to use manual actuation, for example by means of a crank acting together with the actuating device.

[0031] A considerable distance may exist between the reel 3 and the rotating unit 11, Thus the rotating unit 11 may be set up separately from the reel 3, Expediently, the rotating unit 11 Is located in an area adjacent to the reel 3, so that the cantilever beam 18 associated with the rotating unit 11 may be attached to the reel 3, as is Illustrated in Figures 1 and 3, in the example underlying Figures 1 and 3 the reel carrier 5 receiving the reel 3 and with the latter the cantilever beam 18 receiving the rotating unit 11 are attached to the channel cleaning vehicle 8, expediently on the rear of the channel cleaning vehicle s.

Claims

Apparatus for hose or similar rotations of Szádadajíh claims

An apparatus for winching (3) a hose or the like that can be retracted, in particular a rotary channel (2) arranged in the channel after the winch (3), on which the hose can be rotated (11), by means of a rotary unit (11) which can be introduced into a channel (1) with high pressure wash water. passing through the rotating unit (11) comprising a drum (12) for receiving a t # and a spacer roller (4) arranged on its output side, which is rotatable on a rotary arm with the axis of the drum (12) (13) 2> 1: ^, characterized in that the rotary arm (13) is blocked to any desired angle of rotation of the hose, freely movable and preferably driven by a motor in the direction of rotation.

Apparatus according to any one of the preceding claims, characterized in that the drum (12) has a suspended arrangement and the rotary arm is positioned on the non-supported side of the drum (12). Apparatus according to claim 3, characterized in that it comprises a suspended axle (16) on which the drum (12) and the rotary arm (13) are rotatably mounted independently of one another. The apparatus according to claim 4, characterized in that the rotary arm (13) is a spherical roller. (4) is retracted onto a drive shaft (17) extending into a central axial bore of the shaft (16).

Apparatus according to claim 5, characterized in that the bending shaft (17) extends through the respective axial bore and comprises a drive means (19) which cooperates with the drive device at the opposite end of the sleeve troughs (13).

Device according to one of the preceding claims, characterized in that the deflector (4) is arranged on a transverse axis to the axis of the drum (12).

Apparatus according to any one of the preceding claims, wherein the drum (12) is arranged with a vertical axis and the guide roller (4) is arranged with a horizontal axis. Device according to claim 8, characterized in that the drum (12) and the rotary arm (13) carrying the deflector roller (4) are arranged one above the other, the drum (12) is located at the top and the rotating arm (13) is located at the bottom. 1o. Device according to claim 9, characterized in that the drum (12) and the rotating arm (13) are suspended on a bracket (18) comprising a drive device (13) for the drive arm (13) on the side of the drum (12). An apparatus according to claim 1, characterized in that the hose container arranged in the drum (1: 2) comprises at least a thread number corresponding to the desired total number of revolutions of the hose.

Apparatus according to any one of the preceding claims, characterized in that the rotating unit (11) is arranged in a region adjacent to the bellows (3). (18) is mounted on the rack (5) for picking up the bankrupt (3).

14. A canal cleaning vehicle as defined in claims 1-13. Apparatus according to any one of claims 1 to 5 is mounted.