RU2233064C1 - Spiral auger feed - Google Patents

Abstract

FIELD: agricultural engineering.

SUBSTANCE: invention relates to working members of machines designed for application of fertilizers, particularly, mineral fertilizers. Proposed device contains hopper with discharge holes, spiral auger consisting of two spirals differing in hand of helix, and bridge breaking device. The latter is made in from of plate carrying rods installed at different angles and in different directions. Plate is set in engagement with disk installed with tilting on auger shaft by means of rigidly connected lever.

EFFECT: provision of uniform feeding and breaking of loose material bridges.

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Description

The invention relates to the field of agricultural engineering, and in particular to the working bodies of machines for making bulk materials, in particular mineral fertilizers.

Known auger sowing apparatus [1] with a metering device, under which a screw is installed across the movement, enclosed in a casing with sowing holes that are offset relative to each other in the direction of rotation of the screw by an equal amount in the direction of the intake part of the screw, and a shutter.

The disadvantage of this apparatus is the sticking of mineral fertilizers to the auger belt and the deterioration of the uniformity of sowing of bulk materials when working in warehouses.

Closest to the technical nature of the present invention is a fertilizer apparatus [2], containing a hopper with a metering working body installed in it in the form of a rotating shaft with screw springs fixed on it, the ends of which are placed in the transport channels of the housings having sowing holes with located below them with funnel-receiving funnels, and between the coil springs and the rotating shaft, springs of smaller diameter are installed with the direction of winding, which coincides with the direction of winding of the outer spring .

The disadvantage of this design is the low uniformity of seeding low-flowing materials.

The present invention solves the problem of increasing the uniformity of seeding and collapse of the arches of bulk materials in the bunkers.

To achieve this technical result, in a known device containing a hopper with a metering working element installed in it in the form of a rotating shaft with screw springs fixed on it, the ends of which are placed in the transport channels of the housings having sowing holes, it is installed in the hopper with the possibility of reciprocating movement in the horizontal plane vault-breaking device, which is a bar on which at different angles in different directions and planes are located rzhni, wherein the strap means fixedly connected thereto a lever is in constant engagement with the obliquely installed on the shaft of the helical screw washer.

The proposed technical solution is illustrated by the drawing, which shows a spiral screw metering device.

The spiral screw metering device consists of a hopper 1, a spiral screw 2, having left and right windings, supplying material in opposite directions from the place of its loading to the sowing windows 3 of the casing 4, consisting of two equal parts in length.

Inside the hopper 1 is a collapsing device 5, which is mounted on the hopper with a mount 6.

The collapsing device 5 is a bar 7, on which rods 8 are located at different angles and in different directions.

The lever 9, which is in constant engagement with the washer 10 of the spiral screw 2, is rigidly connected to the bar 7 of the collapsing device 5.

To exclude the rotation of the collapsing device 5, a pin 11 is installed at the end of the strip 7, which moves along the groove of the fastening 12 mounted on the wall of the hopper 1.

The device operates as follows: when the spiral screw 2 rotates, the bulk material from the hopper 1 is captured by its turns and moves horizontally to the sowing windows 3. When the spiral screw 2 is rotated, the lever 9 of the collapsing device 5, which is in constant engagement with the washer 10 of the spiral screw 2, makes a reciprocating motion in the horizontal plane. The strap 7 with the rods 8 located on it and rigidly connected with the rod 9 destroys the formed material arches, thereby providing a continuous supply of material to the sowing windows 3.

The frequency of the reciprocating movements of the collapsing device 5 depends on the frequency of rotation of the spiral screw 2.

The work of the collapsing device ceases with the end of the spiral screw metering device.

Sources of information

1. USSR author's certificate No. 1253457, IPC ⁵ A 01 C 15/00, 1983.

2. USSR author's certificate No. 829016, M. Cl ³ A 01 C 17/00, 1981.

Claims (1)

Spiral-screw metering device containing a hopper with a metering working element installed in it in the form of a rotating shaft with screw springs fixed on it, the ends of which are placed in the transport channels of casings having seed holes, characterized in that it is installed in the hopper with the possibility of return translational movement in the horizontal plane, a collapsing device made in the form of a bar, on which rods are located at different angles in different directions and planes, and the bar means rigidly connected thereto lever is in constant engagement with the obliquely installed on the shaft of the helical screw washer.