RU2133087C1 - Header for forming tent-shaped windrow - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: header has horizontal conveyors, vertical conveyors with finger-type throwing cylinders and divider positioned in header ejector window and fixed on cutter bar. Divider has upper and lower guides, telescopic tine and adjusting frame with telescopic horizontal bars and pole. Freshly mowed mass is entrained by fingers and thrown by two countercurrent flows onto guiding dividers. Stalk tops stick together above upper guiding dividers to form wedge-shaped windrow. Angle of inclination of tent wall and width of windrow base are adjusted by changing length of telescopic horizontal bars and poles. Such construction allows high-quality tent-shaped windrows to be formed independent of kind of crop and average height and density of plant stand. EFFECT: increased efficiency, wider operational capabilities and enhanced reliability in operation. 2 cl, 6 dwg

Description

 The invention relates to agricultural machinery, in particular to roll reapers.

 Known reaper for forming a tent roll, including a horizontal conveyor, conical drums and a divider located in the exhaust window / 1 /.

 Also known is a header for forming a tent roll, including a frame, horizontal and vertical transfer conveyors and a swath divider located in the exhaust window / 2 /.

 A disadvantage of the known devices is the impossibility of forming a quality tent roll depending on the height of the stem.

 The aim of the invention is the qualitative formation of a tent-shaped roll, regardless of the average height of the stalk and the type of harvested culture.

 This is achieved by the fact that the inclined conveyors are equipped with a finger ejector of the beveled mass, and a divider is installed in the exhaust window of the header, which is adjustable in height and angle of inclination of the walls of the tent. Inclined conveyors and finger drums are mounted on the header frame pivotally and are regulated by the angle of inclination and extension depending on the crop yield and the height of the stem.

 The divider is pivotally mounted on the frame and has a wheel for copying the relief of the field surface.

 1. The claimed technical solution - "Reaper for forming a tent-shaped roll" - meets the criterion of "novelty of the technical solution." A patent information search for identifying analogues and a prototype was carried out using the funds of the KSAA, TSNTI and the Republican Library of Kazan. As a result of this, a technical solution was identified - "A device for forming a tent-shaped roll to the reapers" (A.S. N 820724, MKI A 01 D 57/30, 1981), taken as the closest analogue / prototype /.

 2. The claimed invention meets the criterion of "industrial technical solution". At the filing date, a prototype of the header was made and put into production in the Iskra collective enterprise of the Sabinsky district of the Republic of Tatarstan.

3. A comparative analysis of the proposed technical solution, not only with technical solutions known in the art - analogues, but also with the prototype, revealed a number of significant distinguishing features that form a new population unknown from the prior art, specifically:
- it is equipped with a drum ejector with eccentric fingers:
- in the exhaust window of the header a divider is installed, adjustable in width and height depending on the type of harvested crop and the average height of the stem:
- simplicity of design and reliability in operation.

 Having at least three significant distinctive features from the prototype, the claimed technical solution is fully consistent with obtaining a new "technical result".

 In FIG. 1 is a front view of the header; FIG. 2 is also a top view, FIG. 3 - finger ejector (section AA), FIG. 4 - finger ejector (section BB), FIG. 5 is a side view of a divider, FIG. 6 - also a top view.

 The header for forming a tent-shaped roll contains horizontal conveyors 1 (Fig. 1, 2), vertical belt conveyors 2, a divider 3, mounted on a knife beam 4 by means of an arm 5. The drive mechanism of the vertical conveyors contains the main 6, intermediate 7, final 8, bevel gears telescopic driveshafts 9.

 The drive drums 10 contain a crankshaft 11, hinges 12, discs 13, pins 14, stops 15, guide sleeves 16. The divider 3 (Fig. 5, 6) contains upper 17 and lower 18 guides, a telescopic rack 19, an adjusting frame with horizontal telescopic rods 20 and the rack 21. Fixing the telescopic structural elements of the divider is carried out by means of clamps 22. The divider is lowered onto the copy wheel 23.

 Reaper works as follows. When the header moves, the mowed mass with the butt part of the stems enters the horizontal conveyors 1, the upper part of the mowed plants rests on the right and left vertical conveyors 2, the drive of which is carried out from the final 8 and intermediate 7 bevel gears, respectively. The latter by means of the driveshaft 9 is connected to the main gearbox 6, which receives rotation from the power take-off shaft of the tractor or combine. The beveled mass is transported in a vertical or close position to the exhaust window located in the middle of the header. When approaching the window, the beveled mass is picked up by the fingers 14 of the drive drums 10. The fingers of the drum move from the action of the guides 15 pivotally mounted in the holes of the drum wall, which are located between the belts of the vertical conveyors. The fingers are pivotally mounted on the disks 13, rotating by means of bearings 12 around the crankshaft axis 11.

 At the moment the fingers exit the drums and introduce them into the streams of beveled mass located on vertical conveyors, they have an angular velocity equal to or close to the angular velocity of the drum. With further rotation, the angular velocity of the fingers increases due to the eccentricity of the crankshaft axis 11, giving the beveled mass an additional speed.

 The beveled mass carried away by the fingers is discharged by two oncoming streams onto the guides 17 and 18 of the divider 3, while the tops of the stems should engage above the upper guides 17 of the divider, forming a tent-shaped roll.

 The longitudinal component of the portable flow velocity of the mowed mass, directed opposite to the direction of the header speed, should be equal to the last modulo. The transverse component of the flow velocity should be sufficient for the knots to reach the lower guide 18 of the divider 3 by the clod plants.

 The angle of inclination of the side walls of the tent and the width of the base of the tent-shaped roll are selected depending on the type of harvested crop, the average height of the stalk, and are regulated by changing the length of the telescopic horizontal rods 20 and racks 19 and 21.

 The magnitude and direction of the velocity of the flow of the beveled mass in the exhaust window during the formation of the tent is adjusted by moving the crankshaft axis 11, which is stationary relative to the drive drums 10.

 With the same length of the header conveyors, the divider 3 is installed along the center line of the header exhaust window.

 Thus, the proposed header allows you to form a high-quality tent-shaped roll regardless of the type of culture and the average height of the stalk, which reduces grain loss by improving the drying conditions of the mowed mass.

Sources of information
1. A. p. USSR N 730324, MKI A 01 D 43/04, 1980.

 2. A. p. USSR N 820724, MKI A 01 D 57/30, 1981.

Claims (2)

 1. The header for forming a tent-shaped roll, including conveyors and a divider located in the exhaust window of the header, characterized in that it is equipped with finger ejector mounted on the drive drums of the vertical conveyors, and the fingers of the ejector rotate around a crankshaft fixed and eccentrically fixed inside the drum.  2. The reaper according to claim 1, characterized in that the divider is made adjustable in width, angle of inclination of the walls of the divider, depending on the average height of the stem and the type of harvested crop.

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