SU1590638A1

SU1590638A1 - Concrete pump

Info

Publication number: SU1590638A1
Application number: SU884608257A
Authority: SU
Inventors: Александр Валентинович Лещинский; Станислав Аркадьевич Шемякин; Геннадий Гаврилович Воскресенский; Игорь Борисович Авдеев
Original assignee: Хабаровский политехнический институт
Priority date: 1988-11-23
Filing date: 1988-11-23
Publication date: 1990-09-07

Abstract

Изобретение относитс к насосостроению, в частности к насосам дл перекачивани в зких и неоднородных жидкостей. Целью изобретени вл етс увеличение объемной подачи путем повышени коэффициента заполнени рабочего цилиндра на также всасывани . Бетононасос содержит приемный бункер 2 с двум муфтами 3, имеющими продольные пазы. В муфтах 3 установлены два рабочих цилиндра, каждый из которых выполнен из двух последовательно установленных подвижной 5 и неподвижной 6 частей, перва из которых имеет продольный паз, жестко св зана с концом соответствующего S-образного патрубка 8 и установлена с возможностью с ним поророта. Оба патрубка 8 шарнирно прикреплены к общей плите 18, котора при помощи гидроцилиндров 19 может перемещатьс возвратнопоступательно между двум крайними положени ми дл сообщени в крайнем положении одного из патрубков 8 с нагнетательным трубопроводом 17. В рабочих цилиндрах установлены поршни. При перемещении плиты 18 в одно из крайних положений происходит поворот патрубков 8 и подвижных частей 5 рабочих цилиндров и в одном из рабочих цилиндров продольных паз рабочей части совмещаетс с продольным пазом муфты 3, что обеспечивает заполение рабочего цилиндра на такте всасывани не только за счет разр жени , но и под действием массы бетоносмеси в бункере 2 и за счет воздействи побудител . 6 ил.The invention relates to pump engineering, in particular to pumps for pumping viscous and non-uniform liquids. The aim of the invention is to increase the volumetric flow rate by increasing the filling ratio of the working cylinder by also suction. Concrete pump contains a hopper 2 with two couplings 3 with longitudinal grooves. In clutches 3, two working cylinders are installed, each of which is made of two sequentially mounted movable 5 and fixed 6 parts, the first of which has a longitudinal groove, is rigidly connected to the end of the corresponding S-shaped pipe 8 and is rotatably installed. Both nozzles 8 are pivotally attached to a common plate 18, which with the help of hydraulic cylinders 19 can be moved reciprocally between two extreme positions for communication in the extreme position of one of the nozzles 8 with the discharge pipe 17. Pistons are mounted in the working cylinders. When the plate 18 is moved to one of the extreme positions, the nozzles 8 and the moving parts 5 of the working cylinders are rotated and in one of the working cylinders the longitudinal groove of the working part is aligned with the longitudinal groove of the coupling 3, which ensures the filling of the working cylinder during the suction stroke not only due to the discharge , but also under the action of the mass of concrete mixture in the bunker 2 and due to the impact of the prompter. 6 Il.

Description

1S1S

ВидАVida

1818

±А± A

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Фие. ЗPhie. H

П 15 3 5 If/P 15 3 5 If /

Фиг.55

Фиг.66

Claims

Claim

A concrete pump containing a receiving hopper, two working cylinders, a discharge pipe and a distribution device comprising two S-shaped nozzles mounted to rotate between two extreme positions for alternating communication of each cylinder with a receiving hopper and a discharge pipe, characterized in that, with In order to increase the volumetric supply by increasing the performance factor of the working cylinder at the suction stroke, the receiving hopper is installed above the working cylinders and equipped with a bottom asti two sleeves covering working cylinders and have longitudinal grooves for communicating the cavities with each coupling cavity hopper. each working cylinder is split from two sequentially installed parts, one of which, coupled with the corresponding coupling, is provided with a longitudinal groove, is rigidly connected to the end of the corresponding S-shaped pipe and installed with the possibility of 5 joint with the pipe turning and aligning in one of its extreme positions a longitudinal groove with a longitudinal groove of the coupling, while both nozzles with their ends facing the discharge pipe are pivotally attached to a common plate mounted with the possibility of return o-poetupatelnogo movement between two extreme positions in the plane perpendicular to the axis of the discharge pipe.

VM

Fig.Z

FIG. 5

FIG. 6