RU2816766C1 - Detachable comb of combing device - Google Patents

Abstract

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building. Disclosed is a detachable comb of a combing device, which comprises a plate with a curved transverse profile formed from tangentially conjugated to the curve of the bending radius of the plate, located at an angle to each other, rectilinear base and sidewall, along the length of the profile of which there are working surfaces perpendicular to the base from slots and sharpened teeth in the upper part. In the slot between adjacent teeth at their base there is a smooth expansion, which begins at distance of 3/4 from the top of the teeth. Slot is made not along the whole length of the sidewall of the plate, thus forming a transporting plane of the comb.

EFFECT: invention ensures reduction of energy consumption of the combing process and reduction of losses of the harvested material.

1 cl, 2 dwg

Description

The invention relates to agricultural engineering and can be used in devices for harvesting seeds of agricultural crops using the standing stripping method.

A working body is known for stripping the tops of plants [USSR Copyright Certificate for invention No. 482143 A1, A01D 45/04, published 08/30/1975]. The working body is a drum, on the surface of which finger combs are installed in longitudinal rows. Finger combs have extended areas between the fingers at their base.

The disadvantage of the known working body is the loss of seed material, due to the fact that the expanded zones between the fingers at their base at the point of attachment to the drum do not participate in the movement of seed material, but only ensure the passage of plants without causing them to jam in the gaps between the fingers.

A removable drum comb for stripping equipment is known [patent for invention RU 2 442 313 C2, A01D 41 /08, published 02/20/2012 Bull. No. 5]. The removable comb of the stripping equipment drum has the form of a plate with a curved transverse profile formed from plates conjugated tangentially to the bend radius curve, rectilinear bases and sidewalls located at an angle to each other, along the length of the profile, working surfaces made of slots and teeth pointed at the top, made perpendicular to the base with rigid connections of their upper parts to the base of the plate.

The main disadvantage of the comb is that its design does not allow plants to come out of the slots freely, so the plants become jammed and torn off, which leads to additional energy consumption in the combing process. Also, the comb slot is made along the entire length of the sidewall, so losses occur when transporting seeds.

Based on the totality of essential features, the comb is closest to the proposed technical solution and is accepted as a prototype.

The problem solved by the invention is to develop a removable comb of the stripping device, which ensures a reduction in the energy consumption of the stripping process, due to the elimination of jamming and the free exit of plants without being torn from the slots of the comb, which allows eliminating the loss of seeds during transportation, due to the fact that the slot is not made along the entire length of the comb sidewall.

The technical result of solving the problem is to reduce the energy consumption of the stripping process, due to the elimination of jamming and the free exit of plants without being torn from the comb slots, reducing the loss of harvested material during stripping with a stripping device, and ultimately reducing the cost of harvesting work.

The task posed in the invention is achieved by the fact that the removable comb of the stripping device contains a plate with a curved transverse profile formed from tangents to the curve of the bending radius of the plate, rectilinear bases and sidewalls located at an angle to each other, along the length of the profile of which working surfaces are made perpendicular to the base slots and teeth pointed at the top, in the slot between adjacent teeth at their base there is a smooth expansion, which begins at a distance of 3/4 from the top of the teeth, at the same time the slot is not made along the entire length of the sidewall of the plate, thereby forming the transport plane of the comb.

In the slot between adjacent teeth at their base there is a smooth expansion, which begins from a distance of 3/4 from the top of the teeth, eliminates jamming of plants between the teeth and reduces the energy consumption of the combing process, at the same time the slot is not made along the entire length of the sidewall of the comb, thereby forming a transport plane of the comb, which allows transporting crop seeds without loss.

The invention is illustrated by drawings.

In fig. 1 shows a general view of the removable comb of the stripping device in axonometry; in fig. 2 - shows a general view of the removable comb of the stripping device from the side of the working surface.

The removable comb of the stripping device contains a plate with a curved transverse profile formed from tangents to the bend radius curve of the plate, rectilinear base and sidewalls of the plate located at an angle to each other, along the length of the profile, which is made perpendicular to the base of the plate, teeth - 1; and teeth pointed at the top - 2; working surfaces made of slots that are made perpendicular to the base of the plate - 3; between adjacent teeth at their base there is a smooth expansion, which begins at a distance of 3/4 from the top of the teeth, - 4; recess at the base of the teeth - 5; at the same time, the slot is not made along the entire length of the sidewall of the plate, thereby forming the transport plane of the comb - 6. At the base of the plate there are holes intended for mounting on the stripper drum.

The process of stripping plants with a removable comb of the stripping device is carried out as follows.

Removable combs are mounted on the stripper drum through threaded connections and holes on the base.

When the removable comb of the stripping device operates, the teeth - 1 are embedded in the grain of the crop being harvested, directing the plant stems into the gap between the teeth - 2, and form a layer. Working surfaces made of slots - 3, sliding along plant stems, meet a thickening, i.e. the base of the ear (panicle, bean). Since the speed of the tooth is high, the ear at its base receives an impact from the edge of the tooth, which leads to the release of grains or the separation of the ear from the stem, then the stem moves into a smooth expansion of the slot from a distance of 3/4 from the top of the teeth - 4, where it is free without jamming comes out of the comb through a recess - 5. The moving mass of seeds is transported by the plane of the comb, in which the slot is not made along the entire length of the sidewall of the comb, - 6. The tow products are transported by the stripping device to the combine harvester for complete threshing, separation of grain from plant residues and its collection to the bunker.

The use of the claimed invention makes it possible to reduce the energy consumption of the combing process by eliminating jamming and the free exit of plants without being torn off from the comb slots, at the same time allowing to transport seeds without loss, since the slot is not made along the entire length of the sidewall of the comb, thereby forming a transporting plane of the comb, resulting in a reduction in the cost of harvesting work.

Claims (1)

The removable comb of the stripping device contains a plate with a curved transverse profile formed from the plates conjugate tangentially to the bend radius curve, rectilinear base and sidewalls located at an angle to each other, along the length of the profile of which there are working surfaces made of slots and teeth pointed at the top, perpendicular to the base, characterized in that in the slot between adjacent teeth at their base there is a smooth expansion, which begins at a distance of 3/4 from the top of the teeth, at the same time, the slot is not made along the entire length of the sidewall of the plate, thereby forming a transporting plane of the comb.