CH134301A

CH134301A - Cement mixer.

Info

Publication number: CH134301A
Authority: CH
Inventors: Jaeger Gebhard
Original assignee: Jaeger Gebhard
Priority date: 1928-06-05
Filing date: 1928-06-05
Publication date: 1929-07-31

Description

Betonniere. Dans 1e type de Betonniere dans lequel un tambour malaxeur actionne par un dispo- sitif d'entrainement est charge ä 1'aide dune benne qui regoit un mouvement d'elevation pour deeharger son contenu de sable, de gra vier et de ciment dans 1e tambour, 1'ecoule- ment de ce contenu de la benne est souvent si retarde qu'il est necessaire de Trapper 1e fond de la benne ä 1'aide dun marteau, dune Barre lourde ou d'un autre instrument com- mode permettant de secouer la matiere et d'accelerer sa deseente. Les chocs ainsi pro- duits deteriorent la benne et aWmentent la dif ficulte de chargement. Le but de la pre- sente invention est de faciliter 1e chargement du tambour tout en evitant 1'inconvenient sus- mentionne. Pour y parvenir, an uhlise sui- vant 1'invention une tringlerie reliant la benne au tambour par 1'intermediaire d'un dispositif actionne par 1e dispositif d'entrai- nement du- tambour, pour secouer la benne, lorsque celle-ci o.ccupe la Position de char- gement du tambour. Cement mixer. In the type of concrete mixer in which a drum mixer driven by a driving device is loaded by means of a bucket which receives an elevating movement to discharge its contents of sand, gravel and cement into the drum , the flow of these contents from the bucket is often so retarded that it is necessary to trap the bottom of the bucket with a hammer, heavy bar or other convenient instrument for shaking the bucket. the matter and to accelerate its descent. The shocks thus produced damage the skip and increase the difficulty of loading. The object of the present invention is to facilitate the loading of the drum while avoiding the aforementioned inconvenience. To achieve this, an uhlise according to the invention a linkage connecting the bucket to the drum via a device actuated by the drum drive device, to shake the bucket, when the latter o .takes the Drum Loading Position.

Une forme d'execution de 1'invention sera decrite ei-apres, ä titre d'exemple, en se referant au dessin annexe Jans lequel: Fig. 1 represente en vue de cöte une Be- tonni6re dopt 1e tambour malaxeur est du type rotatif et pivotant, certaines pieces ayant kg bris.ees dans un but de olärte; Fig. 2 est une vue fragmj,#ehtaire repre- sentant des details des organee secoueurs, en regardant de la gauche de ~ 1'appareil, la benne n'etant pas representse; - Fig. 3 est une vue fragmentaire repre- sentant les dispositifs de rotation et de pivo- tement du tambour et une came portee par 1e dispositif de rotation du tambour et servant ä, actionner 1e dispositif secoueur; Fig. 4 est un plan fragmentaire avec coupe horizontale partielle dune Partie du bäti representant la construction dune :des ex- tr6mit6s de 1'organe oscillant du dispositif secoueur. One embodiment of the invention will be described below, by way of example, with reference to the appended drawing, which: FIG. 1 shows a side view of a cement mixer with the mixer drum being of the rotating and pivoting type, some parts having broken for the purpose of damage; Fig. 2 is a fragmentary view showing details of the shaker organs, looking from the left of the apparatus, the bucket not being represented; -Fig. 3 is a fragmentary view showing the drum rotating and pivoting devices and a cam carried by the drum rotating device and serving to actuate the shaker device; Fig. 4 is a fragmentary plan with partial horizontal section of a part of the frame showing the construction of one of the ends of the oscillating member of the shaker device.

Dans ces figures, 5 dAsigne 1e tambour malaxeur qui, dans 1e type de b6tonniere represente, est monte pour tourner autour d'un axe Porte par un etrier pivotant 6 qui est -uruni de tcurillons support6s dans un bäti principal 7. A 1'un des tourillons est fixe un levier 8 (fig. 3) ou un autre organe convenable ä 1'aide duquel an peut faire pi- voter 1e tambour de la Position de charge- ment ä la Position de dechargement._ Dans lautre tourillon est monte de fagon ä pouvoir tourner un arbre 9 sur lequel est fixe un pi- gnon dente entraine par une chaine 10, rece- vant elle-meme son mouvement d'un dispo- sitif moteur non represente, 1'arbre 9 portant ä son extremite interne un pignon 11 qui en- grene avec une cremailliere annulaire 12 fixee au tambour pour faire tourner celui-ei autour .de Paxe de symetrie de Fetrier pivo- tant 6:. A Farbre 9 est fixee une came 13 ser- vant ü actionner 1e micanisme prevu pour secouer la benne. In these figures, 5 denotes the mixer drum which, in the type of concrete mixer represented, is mounted to rotate about an axis carried by a pivoting yoke 6 which is fitted with rods supported in a main frame 7. At one fixed to the journals is a lever 8 (fig. 3) or other suitable device by which the drum can be pivoted from the loading position to the unloading position. so as to be able to turn a shaft 9 on which is fixed a toothed pinion driven by a chain 10, itself receiving its movement from a motor device (not shown), the shaft 9 carrying at its internal end a pinion 11 which meshes with an annular rack 12 fixed to the drum in order to rotate the latter around .de the axis of symmetry of Pivoting Fetrier 6:. To the shaft 9 is fixed a cam 13 serving to actuate the mechanism provided for shaking the bucket.

14 designe la benne de chargement qui est de la forme ordinaire et .qui est munie de chaque cöte dune Barre diagonale 15 et dune Barre horizontale 16, ces Barres pivotant ä leur jonctian sur 1'extr6mite inferieure dune Biellette pivotante 17 et s'etendant vers 1e bas ä partir dune Barre 18 fixee entre les elements 7 du bäti principal de .l'appareil. La benne de chargement est elevge ä la Position de- chargement de la bAtonniere, comme re- pr6sent6 par les lignes pointillees de fig. 1, ä Faide de cäbles 19 assujettis ä la Partie in ferieure de la benne et Passant autour de poulies (non representees) port6es par un ar- bre 20 qui Porte une roue ä chaine 21 rece- vant sa commande d'un moteur (non repre- sente), ainsi qu'il est usuel dans les beton ni6res de ce genre. Comme la benne chargee est assez loürde; la Barre 18 est contrevent6e par des jambes de force telles que celles re- pr6sent6es en 22 et en 23 qui s'elevent de 1a Base du bäti principal (fig. 1) et sont reliees ä la Barre 18 comme represente dans la fig. 2. 14 designates the loading bucket which is of the ordinary shape and which is provided on each side with a diagonal bar 15 and a horizontal bar 16, these bars pivoting at their junction on the lower end of a pivoting rod 17 and extending towards the first bottom from a bar 18 fixed between the elements 7 of the main frame of the device. The cargo bed is raised to the Bar Unloading Position, as shown by the dotted lines in FIG. 1, with the aid of cables 19 secured to the lower part of the bucket and passing around pulleys (not shown) carried by a shaft 20 which carries a chain wheel 21 receiving its control from a motor (not shown). represented), as is customary in finished concrete of this kind. As the loaded skip is quite heavy; Bar 18 is braced by struts such as those shown at 22 and 23 which rise from the base of the main frame (fig. 1) and are connected to bar 18 as shown in fig. 2.

,Sur 1a Barre 18 est montee une douille oscillante 24 pr6sentant une 6chancrure et un element de jonction 24a de fagon quelle n'entre pas en contact aveo la Biellette 17 et les jambes de farce sus-mentionnees. A 1'extremite externe de cette douille est reli6 un bras 25 uruni d'un galet anti-friction 26 qui est destine ä. cooperer avec la came 13 sus-mentionnee. , On 1a Bar 18 is mounted an oscillating sleeve 24 presenting a notch and a junction element 24a so that it does not come into contact with the connecting rod 17 and the above-mentioned stuffing legs. Connected to the outer end of this sleeve is an arm 25 fitted with an anti-friction roller 26 which is intended to. cooperate with the cam 13 mentioned above.

La douille 24- Porte ä son extremite in terne deux butees 27 qui viennent heurter des goupilles 28 portees par les Barres horizon tales 16 lorsque la benne est elevee ä sa Po sition de chargement. The sleeve 24 carries at its inner end two stops 27 which strike pins 28 carried by the horizontal bars 16 when the bucket is raised to its loading position.

A la Biellette 17 est fixe un doigt 29 qui, lorsque la benne est abaissee, agit sur RTI ID="0002.0275" WI="8" HE="4" LX="1865" LY="564"> 1'ele- ment de jonetion 24a de la douille 24 pour faire osciller cette douille autour de son axe, ee qui a pour effet de relever 1e bras 25 et de Famener ä une Position dans laquelle il n'est plus actiönne par 1a came 13 lorsque la benne est abaissee en vue du remplissage. LTn ressort ä boudin 30 relie au bras oscillant 25 et ä une traverse fixe du bäti principal tend ä maintenir 1e bras fermement en contact avec la came 13 quand la benne est elevee ä la Position de chargement. At the link 17 is fixed a finger 29 which, when the bucket is lowered, acts on RTI ID="0002.0275" WI="8" HE="4" LX="1865" LY="564"> 1'ele- ment 24a of the sleeve 24 to cause this sleeve to oscillate around its axis, which has the effect of raising the first arm 25 and bringing it to a position in which it is no longer actuated by the cam 13 when the bucket is lowered for filling. Coil spring 30 connected to rocker arm 25 and to a fixed cross member of the main frame tends to keep the arm firmly in contact with cam 13 when the body is raised to the loading position.

Le fonctionnement qui ressort clairement de la description detaillee qui precede est 1e suivant: Le tambour malaxeur regoit un mouve- ment de rotatien constant du. pignon 11 et Fon peut pend'ant ce temps 1e faire pivoter ä volonte vers la Position de chargement ou vers la Position de dechargement, ou de la fa- gon qui peut eire usuelle dans les b.etonnieres de ce type. Lorsque 1a benne a ete chargee de la quantite d6siree de sable, gravier et-ci- ment, elle est elevee par les cäbles jusqu'ä Pouverture d'alimentation et de distribution du tambour, comme represent6 par les traits pointill6s de fig. 1. Dans cette Position, 1e bras 25 est abäisse pour amener 1e galet 26 @de ce bras sur 1e chemin de la came 13, de sorte qu'un mouvement oscillant est commu- niqu6 aux butees 27 ainsi qu'ä 1a benne par Paction desdites butees sur les goupilles 28. Ce mouvement oscillant de la benne facilite la descente du gravier, du sable et du ciment de la benne ä Finterieur du tambour. La benne est ensuite abaiss6e et 1e tambour est amene comme d'ordinaire par la commande de son dispositif de pivotement 8 ä sa Posi tion de distribution, un intervalle de temps suffisant s'ecoulant Pendant 1e mouvemert du tambour de sa position de chargement à sa position de distribution pour terminer le malaxage à l'intérieur du tambour. The operation which emerges clearly from the detailed description which precedes is the following: The mixing drum receives a constant rotational movement of the. pinion 11 and during this time can be rotated at will to the Loading Position or to the Unloading Position, or in the manner which may be customary in concrete mixers of this type. When the bucket has been loaded with the desired quantity of sand, gravel and cement, it is raised by the cables to the feed and delivery opening of the drum, as represented by the dotted lines in FIG. 1. In this position, the arm 25 is lowered to bring the roller 26 of this arm into the path of the cam 13, so that an oscillating movement is imparted to the stops 27 as well as to the bucket by the action said stops on the pins 28. This oscillating movement of the bucket facilitates the descent of the gravel, sand and cement from the bucket inside the drum. The bucket is then lowered and the drum is brought as usual by the control of its swivel device 8 to its distribution position, a sufficient time interval elapsing During the movement of the drum from its loading position to its dispensing position to complete the mixing inside the drum.

Claims

CLAIM Concrete mixer in which a drum mixer actuated by a dragging device is loaded using a bucket which receives a lifting movement to dump its contents into the drum, ca acterized by a linkage connecting the bucket to the drum via a tif device actuated by the drum drive device to shake the bucket when the latter occupies the drum loading position. SUB-CLAIMS 1 Concrete mixer according to claim, characterized in that the device used to shake the bucket in its position for loading the drum comprises a cam carried by the device for driving the drum and an oscillating member actuated by this cam, this member acting on the bucket when the latter is brought to its position for loading the drum.

2 Concrete mixer according to claim and sub-claim 1, characterized in that a spring maintains the oscillating member in a position capable of allowing it to be actuated by the cam when the bucket occupies the drum loading position. A cement mixer according to claim and sub-claim 1, characterized in that means are provided to move the oscillating member away from the cam when the bucket is lowered. its filling position.