RU42080U1 - VERTICAL PUMP UNIT - Google Patents

Abstract

The inventive utility model relates to the field of hydraulic engineering and is intended for feeding liquid chemical preservatives and bacterial starter cultures to livestock feed (plant mass) during its harvesting. The vertical pump unit includes a housing with an inlet and an outlet, a guide apparatus, an electric motor located in the support and connected to the electric motor shaft and impellers mounted on the shaft. The electric motor is installed on the upper end of the housing, the shaft support is mounted above the impellers and is made in the form of a stepped sleeve with channels for the pumped liquid, a dividing pipe is installed between the stepped sleeve and the electric motor inside the housing, and the outlet pipe is made lateral. The housing is prefabricated and contains a pipe in the lower part, and a tee connected to the pipe with a lower axial bend in the upper part, the electric motor in the lower part is equipped with a cup, the glass is connected to the upper axial bend of the tee, and the transverse bend of the tee is equipped with a plug with a fitting. The pipe is connected to the tee, and the tee with a plug and a glass connection type "pipe-socket", and the connections are equipped with sealing cuffs.

Description

The inventive utility model relates to the field of hydraulic engineering. The vertical pumping unit is intended for feeding liquid chemical preservatives and bacterial starter cultures to cattle feed (plant mass) during its procurement. The unit can be used both on field forage harvesting machines, and in stationary conditions.

Devices for supplying liquid preservatives to the plant mass are widely known (see, for example, descriptions to patents of the Russian Federation No. 2061387, publ. 10.06.96, No. 2063146, publ. 10.07.96). These devices are designed for the treatment of mowed crop placed on the soil or in the container. As the dosing unit in the listed devices, a hydraulic cylinder is used. The disadvantage of these technical solutions is the inability to process the crop directly on the forage harvester, i.e. in the process of transporting the mass through the silo.

Known rotary pump according to the patent of the Russian Federation No. 2005198, publ. 12/30/93. The rotary pump is intended for use in devices requiring a dosed liquid supply, for example, in devices for processing preservatives and biological products of plant feed for agricultural animals.

The rotary pump contains a cylindrical housing with a fixed liner, a rotor mounted in the housing on the drive shaft with the possibility of interaction with the surface of the liner, a spring-loaded separation plate placed in the housing with the formation of the working chambers and channels for supplying and discharging the working medium.

The specified rotary pump can be mounted on a forage harvester. The disadvantages of this analogue is the relatively low resource of work. When working in aggressive environments, the presence of friction pairs causes accelerated wear of the working elements.

As a prototype, we have chosen a vertical pumping unit according to the patent of the Russian Federation No. 20188718, publ. 30.08.94. The prototype is intended for use in the construction of vertical pumps for pumping liquid from wells, wells, reservoirs and reservoirs.

The vertical pump unit includes a housing with an inlet and an outlet, a guide apparatus, an electric motor located in the support and connected to the electric motor shaft and impellers mounted on the shaft.

The constructive solution used in the prototype cannot be completely, unchanged, used to work in aggressive environments - the parts are made of metal, and the electric motor is installed inside the housing, i.e. below the level of pumped liquid.

The prototype has relatively large transverse dimensions, which does not allow it to be placed in a barrel, in which a preservative or starter is usually supplied. The diameter of the neck in barrels, as a rule, is about 50 mm.

In addition, the prototype is not adapted to work on forage machines, because it does not have means of fixation on the container with liquid, therefore, when moving the machine as a result of shaking it will move around the container.

In developing this utility model, the goal was to expand the arsenal of technical equipment for this purpose, namely, to create a reliable and compact pumping unit designed for feeding liquid chemical preservatives and bacterial starters into livestock feed during its preparation.

The inventive vertical pumping unit comprises a housing with an inlet and an outlet, a guide apparatus, an electric motor located in a support and connected to the electric motor shaft and impellers mounted on the shaft.

The inventive pump unit differs from the prototype in that the electric motor is mounted on the upper end of the housing. The shaft support is mounted above the impellers and is made in the form of a stepped sleeve with channels for the pumped liquid. Inside the housing, between the step sleeve and the electric motor, a separation pipe is installed. The inner surface of the housing and the outer surface of the separation pipe form an annular channel for draining the liquid. A separation pipe is necessary in order to isolate the shaft from the pumped liquid and to give the necessary size to the cross section of the channel for draining the liquid. The outlet pipe is made lateral, i.e. located on the wall of the housing.

In special cases, the proposed device can be characterized by the following features.

The housing is prefabricated and contains a pipe in the lower part, and a tee connected to the pipe with a lower axial bend in the upper part, the electric motor in the lower part is equipped with a glass, the glass is connected to the upper axial bend of the tee. The lateral branch of the tee is equipped with a plug with a fitting. In this particular case, the lateral branch of the tee is the outlet pipe.

The pipe is connected with a tee, and the tee with a plug and a glass with a pipe-to-bell connection. Connections are equipped with sealing cuffs.

List of drawings

Figure 1 - Vertical pumping unit. Lengthwise cut;

Figure 2 - Guide apparatus. Axonometry

Figure 3 - Step sleeve. Axonometry

Figure 4 - Impeller. Axonometry

Utility Model Implementation

The design of the inventive vertical pumping unit is presented in figure 1. The vertical pump unit contains a prefabricated housing consisting of a pipe 1 and a tee 2, an electric motor 3 provided with a cup 4, a shaft 5 connected to an electric motor 3 by means of a coupling b, a suction lining 7 with an inlet 8, a guiding apparatus 9 (see Fig. 2 .), a shaft support in the form of a stepped sleeve 10 (see Fig. 3), upper 11 and lower 12 impellers mounted on the shaft 5 (see Fig. 4), a dividing pipe 13 and an outlet pipe, the function of which is a transverse branch 14 of tee 2, equipped with a plug 15 with an outlet fitting 16. Position 17 We denote annular channel for removing liquid. The impellers 11, 12 are fixed on the shaft with a nut 18. The position 19 denotes a drainage hole.

The upper axial and transverse branches of the tee 2, as well as the upper end of the pipe 1 are equipped with sockets (pos.20, 21, 22, respectively). The tee 2 is connected to the pipe 1, the glass 4 and the plug 15 connection type "pipe-socket". The connections are equipped with sealing cuffs 23, 24, 25. The separation pipe 13 in the upper part is equipped with a flange 26, which is connected to the glass 4. The position 27 indicates a sealing cuff.

In the guide apparatus 9, an axial channel 28 and several radial channels 29 are made.

In the stepped sleeve 10, grooves 30, a drainage hole 19 and a hole 31 for the shaft 5 are made.

The blades 32 are located on the impellers 11, 12. Position 33 indicates a hole for fixing the impeller on the shaft 5.

The claimed work unit operates as follows.

Using the o-ring, the claimed device is fixed in the neck of a barrel filled with a liquid preservative. Driven by an electric motor 3, the impellers 11, 12 pump the preservative out of the barrel through the inlet 8 and pump it through the radial channels 29, the axial channel 28 of the guiding apparatus 9, the axial grooves 30 of the step sleeve 10 into the annular channel 17. From the annular channel 17, the preservative enters through the transverse branch 14 of the tee 2 to the outlet fitting 16, and from there to the consumer (i.e., through a flexible hose and nozzle to the silo). The liquid entering the space between the shaft 5 and the separation pipe 13 is discharged through the drainage hole 19.

The described design allows you to perform a pump unit using as a tee 2, pipe 1, separation pipe 13 and sealing cuffs 23, 24, 25, 27 standard plastic commercially available plumbing products.

The claimed pump unit can be installed on any field grinder or stationary equipment and provides the ability to work with any low-viscosity process liquids based on acids.

Performance - 10-15 l / min; Pressure rating - 0.035 MPa; Case Diameter - 50 mm; Length -1m; Resource - 500 hours.

Claims (3)

1. A vertical pump unit comprising a housing with an inlet and an outlet, a guide apparatus, an electric motor located in a support and connected to an electric motor shaft and impellers mounted on the shaft, characterized in that the electric motor is mounted on the upper end of the housing, the shaft support is mounted above with impellers and made in the form of a stepped sleeve with channels for the pumped liquid, a separation pipe is installed between the stepped sleeve and the electric motor inside the housing, and the output lateral pipe made. 2. The vertical pumping unit according to claim 1, characterized in that the casing is prefabricated and contains a pipe in the lower part, and a tee connected to the pipe in the lower part, a tee connected to the pipe in the lower part, a glass in the lower part, the glass connected to the upper axial bend tee, and the lateral branch of the tee is equipped with a plug with a fitting. 3. The vertical pumping unit according to claim 1 or 2, characterized in that the pipe is connected to a tee, and the tee is with a plug and with a glass pipe-to-socket connection, the connections being equipped with sealing cuffs.