RU2457658C1 - Slot beater with adjustable blades - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to the agricultural industry and may be used in devices for harvesting panicle and cereal crops. Slot beater comprises a base with blades fixed on it. Each blade has a bracket and is provided with a curved working surface with its convex forward. The working surface of the blade to the periphery ends with a constraint on the bracket, on which a ledge with a threshing edge is located. Between the limiter and the edge a slit is formed. Each blade is equipped with a carrier plate. Under each beater blade a cam shaft is mounted with the cam arrangement in one plane and with their rest in the blade from the inside. All cam shafts are connected to the mechanism of their rotation, which includes the ring gear, an adjusting self-locking screw and gears installed on the cam shafts. The axis of the ring gear coincides with the axis of the base. The adjusting self-locking screw is balanced with a balancing load. The blades are made of elastic material and are connected to the base by screws with the ability to move along the grooves made in the blades.

EFFECT: due to the ability to change the curvature of the beater blades the quality of combing crops is increases at different grain moisture.

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Description

The invention relates to agricultural machinery, specifically to machines for cleaning panicle and cereal crops.

Known combing the working body of the threshing-separating device / 1 /, containing a rotating rotor mounted on it with blades with curved working surfaces made with combing grooves.

Known combing working body "slotted beater" / 2 / containing a base and blades mounted on it, each of which has a curved working surface with a limiter and a protrusion provided with a threshing edge, while the convex part of the working surface is directed towards the direction of rotation of the beater, and the limiter is located at the peripheral end of the working surface. A gap is placed between the limiter and the edge.

Known combing working body "slotted beater with a transporting plate" / 3 /, adopted as a prototype. The slit beater with a transporting plate contains a base with blades fixed on it, each blade having a bracket and made with a curved working surface convex forward, which ends from the base to the periphery with a stop, and the front part of the protrusion has a threshing edge, between which and a stop there is a gap, wherein each blade is provided with a conveying plate.

The disadvantage of these devices is that they are adapted to a quality tow of harvested crops in a narrow range of their humidity, which to some extent limits their applicability.

The invention consists in the following.

The objective of the invention is to improve the quality of tow of panicle and cereal crops at different moisture levels of grain and plants.

EFFECT: possibility of establishing the necessary curvature of the slotted beater blade to ensure high-quality tow of panicle or cereal crops at a given moisture content.

The specified technical result in the implementation of the invention is achieved by the fact that in the well-known working body "Slit beater with a transporting plate", under each blade there is a cam shaft with the cams located in one plane and with their focus on the blade on the inside, all cam shafts being connected with the mechanism of their rotation, including a gear ring, the axis of which coincides with the axis of the base, self-locking adjusting screw balanced by a balancing weight, gears mounted on cam x shafts, and the blades are made of elastic material and are connected to the base with the help of special screws, on which they can move along the grooves made in the blades.

Figure 1 presents a diagram of the proposed slotted beater with adjustable blades.

Figure 2 presents a view And figure 1.

The slotted beater with adjustable blades contains a base 1 with blades 2 fixed on it, each blade 2 having a bracket 3 and made with a curved working surface convex forward, which ends from the base 1 to the periphery with a stop 4, and the front part of the protrusion has a threshing edge 5, between which and the limiter a gap 6 is formed, each blade 2 provided with a transporting plate 7, a cam shaft 8 is installed under each blade 2 with the cams 9 in the same plane and with their stop into the blade 2 from the inside, and all the cam shafts are connected with the mechanism of their rotation 10, including a gear ring 11, the axis of which coincides with the axis of the base 1, an adjusting self-locking screw 12 balanced by a balancing weight 13, gears 14 mounted on the cam shafts 8, and the blades 2 are made of elastic material and are connected to the base 1 using special screws 15, through which they are able to move along the grooves 16 made in the blades 2.

Slit beater with adjustable blades works as follows.

Before harvesting panicle or grain crops determine the moisture content of their stems. According to the nomogram obtained by the results of experimental studies for a slotted beater with specific design parameters (number of blades, diameter, rotation speed, protrusion length, length and inclination of the transport plate, etc.), showing the dependence of size A (see Fig. 1) on humidity the stems of the crop being harvested, size A is determined. Size A is the size between the blade 2 and the edge of the bracket 3 nearest to it. It is measured with a ruler, which is placed on the self-locking screw 12 with an accuracy of 1 m. Then, the selected size A is set with the adjusting screw 12. The working body is ready for use.

Plants are fed into the gap between two beaters (the second beater is not shown in FIG. 1). Beaters alternately stroke 2 panicles (or ears) of plants from the base to the top with their blades, passing them from one beater to another. The grains attached to the panicle (or to the spike) are engulfed around the stripping edge 5 and fall into the slot 6. The stripping edge 5 bends and breaks off the stem at the length specified by the limiter 4. The overlapping of the plants will depend on the moisture content of their stems and is determined by the curvature of the blade 2. After this, the grain falls on the transporting plate 7 and due to centrifugal force is ejected outside the working body.

Information sources

1. Patent RU No. 2023374, cl. A01D 45/00, A01F 12/18. The working body of the threshing and separating device. / A.K. Skvortsov. No. 4817755/15. Declared 05/14/1990. Published on November 30th, 1994. Bull. Number 22.

2. Patent RU No. 2023369, cl. A01D 45/00. Slit beater / A.K. Skvortsov. No. 4868229/15. Announced on 10/03/1990. Published on November 30th, 1994. Bull. Number 22.

3. Patent RU No. 2199203, cl. A01D 41/08, 45/00. Slit beater with a transporting plate. / A.I. Ryadnov, A.K. Skvortsov, S.V. Ileneva, R.V. Sharipov. No. 2000128584/13. Announced on 11/15/2000. Published on April 27, 213, 2003. Bull. No. 6.

Claims (1)

A slotted beater with adjustable blades, comprising a base with blades fixed on it, each blade having a bracket and made with a curved working surface convex forward, which ends from the base to the periphery with a stop, and the front part of the protrusion has a threshing edge, between which and a stop there is a gap moreover, each blade is equipped with a conveying plate, characterized in that a cam shaft is installed under each blade with the cams located in one plane and focusing them on the blade on the inside, and all the cam shafts are connected to the mechanism of their rotation, including a gear ring, the axis of which coincides with the axis of the base, an adjusting self-locking screw balanced by a balancing weight, gears mounted on the cam shafts, and the blades are made of elastic material and connected to the base with screws, through which they have the ability to move along the grooves made in the blades.

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