DE1653478A1 - concrete pump - Google Patents

Description

PATENT LAWYERS
DIPI /. ING. C. STOBPBL · DIPL. ING. W. GOLLWITZEB

LANDAIT / PIJ'ALZ · AM SCHÜTZENHOP

14, Jimi 1956

LuC

IBAG Internationale Jaumascninenfabrik Aktiengesellschaft,

ITeustadt on the vVeinstrasse

"BetonouniOe"

contact always great em l ~ 3e & ansteile other conveyors for concrete, such as SB cranes. The concrete pumps have the Vortsi 1 _$ that the Joräerirlttal not .jeweils return must take a new batch au iMiineria Furthermore, can also grosae Eöiien by cascading ia ^ = hrsrsa concrete pumps overcome ₅

Bsi άθκ Qro3s-G @ ± l of the known concrete purapen occur iiijii © ia $ Hsihe * yox? Haalitgilen sui *, aie im 17 θ sent Ii ah en da3? Iii 2U solion are, i.e. 5θΐ? Estoa nicli- pe-rarllirit ^ ö ~ calls,.-Ronclerii in ä? J? Fnsme avs? Oh Esm & .Q2? uaigelsnk ^ will.

BAD ORfGlNAL

Eohrhose rubs, oolite aiese Icohrhose who avoided ^ e / i, the ribs would have to be lic.her. Fitted with sliders v: ground. ims additional moving parts rr.it den corresponding IT disadvantages, such as wear and tear, leaks and the like. means. If such ears are not provided, It is a question of single-acting pumps, in the case of soft ones so only half of the operating time back. Jördervor ^ ang from _, enutζt v? ird.

The inventor has already proposed one earlier, which has a cylinder support swinging back and forth rr.it de ^ ii furape cylinder, /; oak alternating with sv. ^! ei filling funnels arranged in parallel and the between these arranged: into the mouth of the delivery line act out. Here it was achieved for the first time that a doubly efficient pur; .pe without irachief.

However, it was decided that this pump, which was correct in principle and had considerable potential over all other pumps, could still be improved. Above all, the arrangement and the sequence of movements of the feed cylinders were to be simplified in order to then also have a simpler drive, sine hohara operational reliability, but above all a simple possibility of handling according to the occurrence of changes in the individual "b β away" during operation: ^ e *: - Tsiie Su arreiohs /; Finally, viar the control of the

- ·. "Ntriebes weii ^ ehend zv simpli ^ o.»

ßSze ±. will he ^ i.ihv.ii ^ ig.ei: .. ^ r. by a · - · ': -h para "IqI a ;;, _: e'.; -: Ιγ \ η: ;; · ^ι! alternie ^ oncl httrii oiaer B9 tc;: \ ·; -.:.f ⁷ · R ^ r ^ and der: cwi.i an üJingong der? Ö:? Le.-lei, · mg

109811/0397

kenden Pan-eiiisy lino Erii dissolved, wherein for Lurchf Jhriing thereof: eracllini; "he reciprocating '^ r motion Kuei' ^T .veitere 3teuerzylinder, uie in -the jibene of the two pumping cylinders, are arranged at right angles 211 aieseii, before \ e3e:; en are. The juit drive and the control of both the 'piston in the pumps zj'. ' "-.; -. he:?, as if looking for two folds in the Güevier- bsv: ·" per hub .-.

The ^ nordnyng and Tuord: iun, £ of ^ 'Jrierkolben i ;: the PaK> enz "liniern and cchubkolben in de-" üeuer ^ .ylindern i3 ⁴ j it made such that iie 3ndla ;; s of the conveyor.. -Iv ^ lben and the Tündiagen of the ic reciprocating piston and dar: ir des pumping ^ lJ.riderrr ^ -vers spange " ¹ ei se are fixed by the oil pressure of the ii; jarauli shear drive and oteuvorrichtung.

The l? Ordu:? Kolc-an in dsr "Fircpenaylinderü can at the same time als]) ruckölr ,, vlinder for the push-calves in the control yiinders, that is, double cylinders. Year In addition to a considerable simplification of the Jansen _αι-triebs- and the control device ensures that a loss of fluid in the actuation flow circuit of the conveyor is automatic and forcibly by the prints "! overprint in the Hydraulics is balanced.

For driving and controlling the various pistons the pump is a single pressure oil control pump with only two control valves provided and required.

Further features of the invention and details of the advantages achieved by the same result from the following Description of an embodiment of the subject matter of the invention, shown in the accompanying drawing.

BAD OftJGfNAL 109811/0397

7ig. 1 _b t zei the erfindungsgemi-'sse ISetoiipumpe

in longitudinal section along the line Ι-Ϊ. in:? ig. 2 ,. . ;

! • 'ig. 2 gives a cross section along the line II-II in Fig. 1 again.

A filling funnel 2 with two outlet openings 3 and 3 ^{1 is} arranged on a pump housing 1. Between these two. Outlet openings, in a "vertical plane with these, is the Singang mouth 4- of. Conveyor line 5 ·

On the top of the housing 1, between this and the hopper 2, a cylinder carrier 6 is arranged, which in the libsne of the two H ¹ UIl funnel openings 3 and 3 'as well as the entrance to them and 4 · of the delivery line 5 back. and can be drawn out. In Fig. 1, the cylinder support 6 is in its right 3nd position.

J> he cylinder carrier 6 is equipped with two delivery cylinders 7 and 7 ', delivery pistons 8 and 8 · slide in multiple ways. The cylinder carrier 6 with the delivery cylinders 7 and 7 ¹ is pushed back and forth in a straight line by the thrust pistons 3 and 9 ¹ in two control cylinders Io and Io 'in such a way that the upper openings of the two delivery cylinders 7 and 7' alternately under the protrusions 3 and 3 'of the hopper 2 and the inlet mouth 4- of the delivery line.

In the position shown in FIG. 1, the delivery cylinder '7' is located under the socket 3 * of the hopper 2, the delivery cylinder 7 is located under the Inlet mouth 4- of the delivery line 5. In the left end position of the cylinder support 6 and thus the two delivery lines

109811/0397

1bb3,478

-5- ■ - '■ "■

sy linder 7 and? ' the Foraer cylinder 7 is located under the ignition 5 of the hopper. 2 and the Härder asunder 7 ¹ under the uer entrance smündting 4 of the delivery line 5.

As shown in Fig.! .Dargestellten position, the conveyor basket is en 8 ^r in its upper 2nd la yes, -dor irörderkolben 8 lower in his Sndlage. With the simultaneous movement of the piston 8 upwards and the piston 8 'downwards, the concrete in the cylinder 7 is pressed into the delivery line 5, the cylinder 7'fills', partly under the influence of the influence on the concrete in the hopper 2 acting gravity, partly under the influence of the suction with concrete generated by the piston 8 'going downwards.

The backward movement of the two delivery pistons 8 and 8 'is triggered by two pressure switches 11 and 11', which actuate a control valve 12 via an electrical control circuit (not shown), which the space 1 $ or 13 'in the hollow FÖraerkolben 8 and 8 ¹ with pressure oil acted upon via lines 14- and 14- '.

If the respective delivery piston 8 and 8 ', its upper-limit position reached _t e is a limit switch 15 (Figure "2) a further control valve 16' is set into action, which BAW via lines 17th 17 * acts on the control cylinder Io or Io 'and thus triggers the horizontal linear movement of the cylinder carrier 6 with the two delivery cylinders 7 and 7' from one end position to the other. Via the same control valve, after reaching the respective end position of the conveying cylinder 7 or 7 ^1, the interior 18 or 18 'of the same via lines X9 ttQö. 19 '^ beaufschlag as _a d ss of the standing © each of the 4- Bingangamünduiis the delivery line 5 Förderkolban 8 or »8 * bei.gleicher downward movement under the then

109811/031?

BATH ORIGINAL

—Ο—

an ignition of the valve Z standing I? '5wheels>;; piston £ 3 8' or 8 is moved upwards and so the filled door cylinder 7 or 7 ^{1 is} emptied into the door line.

This process takes place alternately iii ininer the same order from. c, s is achieved so that the concrete is only lurked in a straight line and no pipes with the larger frictional forces that occur there have to flow through. The pump is double acting. So 3s finds

et a steady promotion instead of ir. period of Rückholbewecung the or a "^ örderkolbens interrupted is. The pump does not have pipe pants. Bs are therefore accordingly; äss there are no zones in which concrete to "concrete with the resulting extremely high friction losses Must be brought by. Finally, the Do not pump any additional slides in the concrete delivery path. ■ The number of oil surfaces exposed to the concrete is more agile Parts is therefore limited to a minimum. The sequence of movements of the moving parts and thus the construction effort ' for the same is very easy. Adjustment of the moving parts after signs of wear and tear occurring during operation to restore or maintain the

ψ the necessary seal is possible in the simplest possible way.

The hydraulic drive and control circuit is also characterized by the greatest possible simplicity. Es-- ■ = only a single Druckölregelpurape 2o is required, which, as shown, can be arranged in a separate housing 21 on the pump ^ - housing I ₅ , namely advantageously on one end of the same under one of the two control cylinders, while a electric drive 22 is provided on the outside of the pump housing 1 on the opposite end face thereof. The frictional connection between the two can be done, for example, in the simplest possible way by means of V-belts 23.

10 9 8 11/0397

"specify the page:. ~ ez eleventh Yorteilen iveisfc ax Punpe the '.weiteren advantage of ausseroraentlich crowded to type on" .3ie is cen-held so low, particularly in its vertical s expansion to everywhere, T.2 too. can be set up in already finished trees of buildings under construction. In addition, the pump and drive are combined in a single unit,

Oa, vvi-e indicated, the delivery pistons S and 8 'are designed on the same side as Bruckolay cylinders and act as double-acting pressure oil cylinders. single movement of the pistons 8 and 8 ^r jruckcl via the then. 18 * with the movement of the Jöra piston S bavv, 8 upwards always an overpressure compared to the chambers 13 and 13 *, the latter fill up again and again automatically with the usual oil losses at the Eolbe seals small amounts of carbon that adhere to the cylinder walls as a lubricating film between the piston seals and the cylinder walls.

109811/0397

Claims (1)

P a t e η t a η s t> r ii c h e: Ι »Concrete: .r.pe»:; it auei arranged in parallel alternating with zv; ei Jälltricht er openings of a filler- • uricLter raid α er ^ .. "i ^ ciien these arranged liJinputnündung the! Delivery line interacting, hydraulically operated pump cylinders, characterized in that the 7ülltrichtercffnunaen the 3ingan £ s: üünd <k & r conveying line and the two! conveying cylinders are arranged in one level xxnd the implementation of a straight I-rin and backward movement of the two conveying cylinders in this level z?; one more, also hydraulic actuated control cylinders are arranged at right angles to the delivery cylinders ο 2o concrete pump according to claim 1, characterized in that .that to drive and control both the piston in the j? 5rderzy relieve as well as the piston in the steering cylinders a single hydraulic drive and control circuit two control valves operated by limit switches and one Drive pump is provided. 3. Concrete pump according to claim 1 and 2, characterized in that the delivery cylinder with its piston and the Control cylinders with their pistons are assigned to one another in this way are that the end positions of the pistons in the delivery cylinders and the end positions of the pistons in the control cylinders and thus forcibly through the end positions of the conveyor relay cutter Oil pressure of the hydraulic drive and control device are fixed. 1098 11/0397 BATH 4. Concrete pump according to claim 1 to 3, characterized marked that uia pistons in the feed cylinders at the same time as a double-acting pressure oil control cylinder are trained. BAD ORIOiNAL 109811/0397 '. Blank page