SU720191A1 - Vertical pump - Google Patents

Description

The invention relates to pump engineering and can be used in devices for pumping and mixing non-uniform media, such as liquid. A vertical pump is known for pumping and mixing non-uniform media, preferably liquid, containing a motor and a housing with a centrifugal impeller mounted on it and pre-connected auger, the blades of which are placed on the sleeve l. The blade mixer of such a pump is only put into operation when liquid manure is needed. The disadvantage of this pump is the design complexity of the overrunning clutch consisting of heat-treated parts of complex configuration made of alloyed steels with a high degree of accuracy, as well as the need for a bearing device. , the compaction of which in slurry is difficult. The goal of the inventive is to simplify the design, reduce the weight and size of the pump. This is achieved by the fact that in the proposed pump, at the lower end of the shaft, guides with elastic stops are installed, between which a screw is punched out on the shaft, and the screw sleeve is made hollow and the nut is rigidly fixed in it, the shaft Q is screwed. FIG. 1 schematically shows a vertical pump in position when pumping the medium, general view; in fig. 2 - the same, in position when mixing the medium. The pump contains a motor 1 and a housing 2 with centrifugal impeller 4 mounted on shaft 3 and upstream screw 5, blades 6 of which are placed on hub 7. Guides 8 with elastic stops are mounted on the lower end of shaft 3

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9., between which biitov cutting 10 is made on the shaft 3, and the sleeve 7 of the speck S is made hollow and the nut 11 is rigidly fixed in it, the interaction is: screw with thread 10, Bottom of the sleeve. 7 is closed by a lid 12,

The vertical pump agaad / k - works.

When pumping medium engine.

I transfers the rotation to the shaft 3, together with the xusor rotates the centrifugal impeller 4e creating a vacuum at the inlet 5 due to the effect of the difference SIL; arising from the interaction of screw thread 10 rotating shaft 3 with a nut

11, and the force of resistance to rotation of the medium of the screw 5 rises up along the screw thread 10, the sleeve 7 rightly saline up along the guides 8, and the nut

II is pressed to the elastic stop 9, after which the screw 5 is installed in place with the shaft ZZ, the medium is pumped to the precise impeller 4 and further on. pump stroke ,,

In the third position, the screw 5 is: B.ijTpH of the housing 2, therefore the mixing of the medium outside the pump does not occur.

When the engine environment is variable: it transmits rotation in the opposite direction, for example, Vle. n;, to the shaft 3. with which it rotates. With the centrifugal operating drip 4, without creating a negative pressure at the inlet, the HhjoK 5 is lowered downward through the cutting process, the sleeve 7 slides downwards

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on the guides 8 before contact with the elastic stop 9, after it the screw 5 rotates together with the shaft 3. In this position, part of the turns of the screw 5 due to the axial clearance between the nut 11 and the elastic stops 9 is taken out of the body 2 and performs functions of a paddle stirrer, so the medium moves as it rotates.

Such a weeding out of a vertical pump provides for separate, aero pumping and mixing of the medium.

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Vertical pump for pumping. Injuring and transporting heterogeneous media of previously liquid manure containing an engine and a housing with an iibhviH installed, in it there is a centrifugal impeller on the shaft and a pre-included auger, the blades of which are placed on the hub, so that , in order to simplify the design, to reduce the weight and dimensions, guides with elastic ones are installed at the lower end of the shaft; between which a screw is made on the shaft, a screw is cut, and the bush of the screw is made of a field and the nut is rigidly fastened in it, interacting with a screw screw of the shaft.

Sources of information taken into account in the examination

1 "USSR Copyright Certificate No. 566964, cl" G04B7 / 04, 1974.

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Claims (1)

Claim A vertical pump for pumping and mixing inhomogeneous media, mainly liquid manure, containing an engine and a housing with a centrifugal impeller mounted on the shaft and an upstream auger, the blades of which are placed on the sleeve, which can be molded in order to simplify the design and reduce weight and dimensions, guides with elastic stops are installed on the lower end of the shaft. between which a screw thread is made on the shaft, and the screw sleeve is polled and a nut interacting with the screw thread of the shaft is rigidly fixed in it.