SE502096C2 - Cleaning load drum of concrete delivery vehicle - involves drivable lance fitted with spray mouthpiece - Google Patents

Abstract

The lance (10) used has a length which at least corresponds to the length of the drum (2) on the vehicle, and at its end which is inserted through the drum aperture (4) has a spray mouthpiece (11) directed at an angle to and possibly at right-angles to the lance longitudinal axis. The lance is supported at its rear part by a drive (13) which moves it axially between two end positions, the distance between which corresponds to the length of the vehicle drum (2). The lance contains an axial channel connected to the spray mouthpiece and to a sourcee (18) for high pressure water.

Description

502 Asa 2 present invention to a device for concrete cars lasttrnlnma, irisidaärförselfdlnaifrån väggenodxinâtutskjutanievingaroduvilkentnmnahareni-odnm- lastnixxgsöpprzirxg, däranordrxixmgenimxefattarenlansmedenlärxgd, San åtuirstoæmtswrartnmmarslängdutneddesslängiææLvilkenlæas idessfrämreär al qvilkenäravseddattinfömasgenunnäm fi aögx fi ng, is fözsaidnedspray-nmxstydcemdärlansaaidessbaluepartiärupphmen of a drívanordx fi RNG arranged to drivingly displace the lance in the axial riJCtnirxg lællan two änilägen, which lance contains a axial channel, which is partly forbtlrnden "spray-nnmstyclzerxa, and is forhmden" with a source of 'tten and uhnarkæ "that the distance between narmda" end position "" motsvarartnmnanslängdsåattilæsensirmeäx f in spray innerstavirgeodiav, attåtmirstorævissamnwstyclcmbildareravir al cel mtlarsenslärgsaxelodiärr al ctadesnettbakåtir al cu f ngfrånlansens Below beslmives invention further in connection to an on the accompanying drawing shows a learning example of the invention none, where Fig. 1 schematically shows the bilodienaxxordrnirgerxl. Lzppfinnixxgexiseddafrånsidan.

Ifig. lvisasenbetongbillmedenlastmmua2, därtrlmamanvisasiett scharatislctæcielltszaitt.

The TrunuanZ is equipped with an off-wall node to extend the armpits3. It is common for these images to form a long-term spiral spiral.

Often there are two parallel spirals. Virxganaa can consist of about 300 um high plates.

The Itrunnan is rotatable relative to the car's chassis. Furthermore, the drum is equipped with an i- and 4. The concrete truck described so far is of the type. according to. The invention includes an alarm with a length of the arm which corresponds to the length of the arm along its axis.

The Larsen is in its front "spirit", which is intended to gencxn 4, provided Inred spray nozzles 11 directed at an angle and 3,502 096 3 vertically towards the lance 10 Iansaxloäridessbaluepartimupçhrmavendrivmmmürglßænrdrad to drivably displace the lance 10 in axial direction 14 indicates, nellantvåändlägemïdeterma, inraär fi lägetbefimmrsiglansenslø frame "änie15nära 2relativtqpn1rgen" '4motståerñevägg löochivarjefallnärmarevàggenlóändeninnerstavingenn. Idet andra, utterre, är laxsens 4.

The distance between the two positions is thus equivalent to the current. In addition, there is a flexible layer 18 for the axial channel of the intermediate alarms and the source 18 for high-pressure water.

Drivananir fi xagen consists of a prxamatic or hydraulic Cylinder 20 with a stroke the distance between said är a is fi bearings.

In a preferred embodiment, the type of cylindrical exchanger is of the type in which the downturner 21 is attached to the piston rod and has a radius ut er radially away from the cylinder and runs in an axial slot in the cylinder I / lens assembly 21 in this case is fixed to the lance 10.

Of course, other mechanical drive chains, ropes, etc. can be used, which are driven by an electric motor. üs ßstyrsmedelstenlärpligkär fi lßæmrdxad attmstymdri so that the lance is moved from its sytueämläge to itshmeärxilägeodxåtert todessyttreärxdläge.

According to. a preferred embodiment is the drive fixed via a hinge 22 in a frame 23 or the like, where one is provided for adjusting the drive 13 and thus the angle of the lance 10 towards the horizontal plane.

Preferably it consists of a hydraulic cylinder 24 or a 502 Åse i; 4 pneumatic cylinder, which is the nellan drive 13 and the frame 23 via joints 25,26. Through the irzstälhxirrgsorgarxet can launch angles towards the Ilorisontalplarlet to fit different concrete trucks. The irradiation means is by means of 14.

Furthermore, devices (not shown), such as hydraulic or pneumatic cylinders, can be present for: adjusting the height of the drive means above ground level.

San above rxanlrrts "is in lancers 10 mre 'arndlage" "spray 11 coated" raärxnareväggerllöänderxläxmgstinbelägrxavirgen fl.

According to. a väserrtlig utföriragsform åüninstozae certain forms: Mn pieces a Vinkelmotlansenslängdæceloduärr al ctadesnetthakåtirikmingfrån Dessamn-styclcengerxlpçtmvtillstrålarz f æ which rärlarsenärisittinmärdlägeeffektivtutspnmarhögnydcsvattenmt denimxerstavirgasl7frånöpp1irgen4vettar fi eytæNärlarsenförflyttas mtellerfråndessinreärñlägesprutarmmstydcernmotöwigavingars frånöçxpniragen4vettarxieytor.

The source 18 for high-pressure water is the linkage of one kind, which emits water of very high pressure, for example in the order of 250 bar.

A rerzgörirlg goes to acc. following.

In the initial position, the boot 10 is displaced to its outer end position. A concrete truck backs the countermeasure to be determined to determine the front end of the lance is in or at 4. Thereafter, the high-pressure water is released on which the spray nozzle can be applied so that it can be moved to the actual position or later.

Uncured and partially hardened concrete loosens effectively from the interior of the truxmnax. Thereafter, the car is carried out on the water and the remains of the composite are placed on the concrete to allow the water to rotate, whereby said spirals feed and the concrete spirals feed.

It has been shown by the expaerinent that a running speed for lansexs: 502 096 5 displacement melhndesstvåär fi lägarczalmirmtbmtotalatiden för encyxelfråneetyctreärmægettilldetinreocnåtert tilldecyccreär thusungefar2mimrter.

This should be used every time a car is parked before it can be removed from the factory or can be removed or removed from the remnants of the concrete in the drum. mrengörirqärmydcetbillig.

If the mating strap is not eliminated, the advantage is obtained that the load load quality is not affected by the fact that parts of earlier load heat quality are mixed in.

It may be noted that the present invention may be modified in detail by the embodiments of: constituent parts. liäcaupelvis can instead of a lance medeninrekanalenb fl kanvär fl as, 1rtmedvilkenenslangärfästad.

Such are considered: included in the tmpfirmirugen.

Thus, the present invention is not to be limited to the embodiment shown, but may be varied within the scope of the appended claims.

Claims (3)

502 (196 'in f; 6. Patent claims A device for cleaning the cargo drum of concrete trucks, which drum is provided on its inside with wings projecting from the wall and inwards and which drum has an loading and unloading opening, the device comprising a lance (10) having a length at least corresponding to the drum ( 2) length along its longitudinal axis, which lance (10) at its front end, which is intended to be inserted through said opening (4), is provided with spray nozzles (11), the lance (10) in its rear portion (12) ) is supported by a drive device (13) arranged to drivably displace the lance in axial direction between two end positions, which lance (10) contains an axial channel, which is partly connected to the spray nozzles (11), and partly connected to a source ( 18) for high-pressure water, characterized in that the distance between said end position corresponds to the length of the drum (2) so that in the inner end position of the lance (10) the spray nozzles (11) are located closer to the opposite wall (4) of the drum (2). 16) than the innermost part of the drum wing (17) and by the fact that at least some nozzles form an angle to the longitudinal axis of the lance (10) and are directed obliquely backwards in the direction from the front end of the lance. 2. Device according to claim 1, characterized in that the drive device consists of a pneumatic or hydraulic cylinder (20) with a stroke corresponding to the distance between said end positions. 3. Device according to claim 1 or 2, characterized in that the angle of the drive device (13) and thus the angle of the lance (10) towards the horizontal plane is adjustable by means of an adjusting means (24).