SU1428278A1 - Pick-up baler - Google Patents

Abstract

The invention relates to the field of agricultural engineering, in particular to machines for the collection of hay-milling materials. The purpose of the invention is to reduce losses when harvesting flax by improving the quality of bale wrapping by eliminating its taper. The device comprises a frame 1, a pick 4, a press chamber 5 formed by a system of drive rollers located along its periphery, a rear flap wall 7 and into a filling apparatus 8. The press chamber is provided with elements for further sealing the butt part of flax products made in the form of conical rollers fixed coaxially with driven rollers with the possibility of free rotation. When flax is fed into the bale chamber, the butt portion of the flax is directed into the zone of action of the tapered rollers and is subjected to more intensive compaction. 1 hp f-ly, 3 ill.

Description

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The invention relates to agricultural machinery and is intended primarily for use in flax harvesting.

The purpose of the invention is to reduce losses when harvesting flax by improving the quality of bale wrapping by eliminating its taper.

FIG. 1 shows a round baler; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a graph of the experimental dependence of the cylindrical roll on the size of -.

The round baler for harvesting haymaking materials consists of a frame 1 supported by a wheel drive 2 and equipped with a hitch 3, a pick-up 4, an annular bale chamber 5, formed by a system of driving cylindrical rollers 6 located along its periphery, a rear flap wall 7, of the apparatus 8 and the drive of the working bodies from the tractor's PTO through a reducer and cardan gear 9. The rollers 6 are mounted on shafts 10, fixed in the sidewalls 11 of the bale chamber 5 in sub-bearings 12. Drive shafts are fixed on the shafts 10 sprockets 13 that span the chain 14 associated with the main gearbox of the drive. On one side of the drive rollers 6, rotating conic rollers 15 are installed, in which the diameter of the smaller base is equal to the diameter of the drive rollers 6. The ratio of the difference between the large diameter D and the smaller diameter d to the length L of the conical roller 6 is chosen in the range of 0.25-0.5.

Rolled baler haymaking materials works as follows.

The baler is used primarily for harvesting flax trusts and straw. In the process, the press moves along flax trusts or straw 16 so that its butt part is located against the tapered rollers 15. At the same time, the pick-up 4 lifts the belt 16 and feeds it into the loading window of the annular pressing chamber 5, where the mass first accumulates to fill its useful volume and then is rotated in the direction indicated

by the arrow AB, by the rollers 6, which compact the material, which continues to flow into the press chamber 5. At the same time, the tapered rollers 15 to a greater extent compact the butt part of the tape, compensating

its elastic expansion, ensuring the correct cylindrical shape of the roll. The most correct cylindrical shape of the rolls is obtained if the ratio of the difference between the diameters of the tapered rollers and their

the length lies within

, 25-0.5,

where D and d are the diameters of the larger and smaller base of the conical rollers;

L is the length of the tapered rollers, and the smaller value of this ratio relates to flax trust, and more to flax straw.

20

Claims (2)

1.Roll baler containing frame, pick-up, annular bale chamber formed by the system drive rollers located around its periphery, rear flap wall and into the intake apparatus, characterized in that, in order to reduce losses during flax harvesting by increasing the quality of wrapping the rolls by eliminating its cone, the drive rollers are provided with elements for additional sealing of the butt part flax, made in the form of tapered rollers placed coaxially with the drive rollers with the possibility of free rotation, with a smaller base of tapered rollers installed at the ends of the drive rollers. 2. A baler according to claim 1, characterized in that the menypical diameter of the tapered rollers is equal to the diameter of the driven rollers, and the ratio of the difference between the diameters of the tapered roller and its length lies within -Y- 0.2 ... 0.5, 45 where D is the diameter of the larger base; d is the diameter of the smaller base; L is the length of the tapered roller. 9g.Z