RU2588181C1 - Rotary cutter with air conditioner of dynamic action - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agricultural machine building and can be used in machinery for fodder production. Rotary cutter with dynamic conditioner comprises cutting tool with rotating disks with pivoted blades and vertically installed drums 4 with bases 6 in their lower part, beaters 5 and covers 7. Beaters 5 are arranged in upper part of drums 4 in slots 12 and are pivotally connected with eccentric bolts 14 with thrust heads to brackets 9 located above slots inside drums 4. Drums 4 are made in the form of hollow cylinders and are rigidly attached to disks 6 via its bases. Beaters 5 are made in the form of curved along a logarithmic spiral blades with sharpened cutting edges. Slots provide beaters 5 deviation from their working position at the angle of up to 90°. At rotation of drums 4 the circle made by beater end parts 5 has diameter not exceeding the diameter of circle formed by ends of articulated knives of disks.

EFFECT: mowing machine is ease in operation and provides high intensity of grass processing.

1 cl, 4 dwg

Description

The invention relates to agricultural machinery and can be used in machines for feed production.

Known rotary mower with tiered air conditioning [1], containing a cutting apparatus with rotating disks with hinged knives and vertically mounted drums with beats in their upper part, fixed from the inside of the drums. The drums, made in the form of truncated cones, rigidly attached with the lower part to the disks, are equipped with caps and bushings in the upper part, rigidly fixed diametrically opposite, the axis of symmetry of which is parallel and (or) perpendicular to the disk knives, and bills are installed in the bushings - pipes of circular cross section and fastened with forelocked fingers through holes made in the bills and that part of the bushings that is inside the truncated cones, while their outer part is flush with the generatrices truncated to cones drums.

The disadvantage of this mower is that the use of round beats is quite energy intensive and does not damage all stalks of mowed grass. Rigid fastening beat the inside of the drums by means of forelocked fingers in the event of a collision, for example, with stones, they can break them, and if the disks or drums welded to the disks are damaged, they must be changed together, which is inconvenient when operating the mower.

Known rotary mower with air conditioning [2], containing a cutting device with an even number of rotating disks with fixed knives and vertically mounted drums with bills. Concave bills are installed in the upper part of the drums by means of rectangular slots made in mutually perpendicular planes at different vertical heights, with a tent or a cup perpendicular or parallel to the lower knives, and the beats are secured from the inside of the drums with cotter pins.

The disadvantage of this mower is that the use of blunt beats of rectangular cross section is quite energy-intensive and does not provide damage to all stems of mowed herbs. Rigid fastening beat the inside of the drums by means of forelocked fingers in the event of a collision, for example, with stones, they can break them, and if the disks or drums welded to the disks are damaged, they must be changed together, which is inconvenient when operating the mower.

The purpose of the invention is to increase the intensity of processing mowed herbs, reducing the energy intensity of the working process, ensuring ease of use.

This goal is achieved by the fact that the rotary mower with dynamic air conditioning contains a cutting apparatus with rotating disks with hinged knives and vertically mounted drums with bases in the lower part, covers and bills placed in the slots of rectangular drums and fixed from the inside of the drums, in the upper one. Removable drums, made in the form of hollow cylinders, rigidly attached with bases to the disks, are equipped in the upper part with beats - curved knives with rectangular bases and working parts made according to a logarithmic curve with sharpened cutting edges mounted by bases in the slot of the drums and pivotally attached eccentric bolts with thrust heads to the brackets located above the slots inside the drums diametrically opposite in parallel or perpendicular to the disco knives in, and the slots provide a deviation of the beaters from their working position by an angle of up to 90 °, and the diameter of the circle created by the ends of the beaters when the drums rotate does not exceed the diameter of the circle formed by the ends of the hinged knives of the disks. Covers in the upper part of the drums are fixed rigidly to flat brackets fixed inside below the upper end of each drum by an amount equal to the thickness of the cover, with an offset of 45 ° relative to the mounting holes of the bases.

In FIG. 1 is a front view of a mower with dynamic air conditioning; in FIG. 2 - the same, top view; in FIG. 3 is a side view of a dynamic conditioner; in FIG. 4 is a top view of a dynamic air conditioner without a cover.

A dynamic-acting rotary mower with dynamic air conditioning comprises a supporting beam 1 with rotating disks 2 with knives 3 pivotally mounted on disks 2 and reels 4 rigidly vertically fixed, which are hollow cylinders (tubes) with bills 5 in their upper part. The drums 4 contain bases 6, covers 7, flat brackets 8, brackets 9 with eccentric holes. The bases 6 of the drums 4 are mounted on the disks 2 by mounting holes and are rigidly bolted to the hubs of the rotary mower through the holes 10. The saws 5 are curved knives with rectangular bases and working parts made according to a logarithmic curve, with sharpened cutting edges 11. They are set with their own the bases of a rectangular cross section in the slot 12 of a rectangular shape in the upper part of the drums 4 and are mounted pivotally through the holes 13 beat 5 to the brackets 9 located above the gap The holes 12 are diametrically opposite parallel or perpendicular to the knives 3 of the disks 2 inside the drums 4 with eccentric bolts 14. The bolts 14 with eccentricity S have thrust heads 15 that support the beads 5 in operation and ensure their free movement in the slots 12 of the rectangular shape of the drums 4. The slots 12 provide a deflection hit 5 when interacting with an obstacle while mowing grass at an angle of up to 90 °. The diameter of the circle created by the ends of beat 5 during the rotation of the drums 4 does not exceed the diameter of the circle formed by the ends of the knives 3 of the disks 2.

To prevent ingress of drums 4 of plant mass, they are equipped with covers 7, which are mounted on top with self-tapping screws to four flat brackets 8, mounted inside below the upper end of each drum 4 by an amount equal to the thickness of the cover 7, offset relative to the mounting holes 10 of the bases 6 by an angle of 45 °. Drums 4 for ease of operation are removable.

A rotary mower with dynamic air conditioning operates as follows. When the tractor with the mower moves across the field, the torque from the tractor PTO is transmitted to the discs 2 located on the supporting beam with knives 3 pivotally attached to them and 4 drums rigidly vertically fixed with hollow cylinders (tubes) with 5 articulated beams in their upper part.

When the rotary mower is moved to the grass stand, the hinge knives 3 of the disks 2 cut the grass, and the hinge beams 5, which are curved knives with rectangular bases and working parts made according to a logarithmic curve with sharpened cutting edges 11, the drums 4 are hit on the stems of the plants, partially chopped , injure, crush them and put them on the field in well-aerated rolls, which greatly speeds up the drying of mowed grass.

To carry out the conditioning process, the bills 5 are inserted with their bases into the rectangular slots 12 made in the upper part of the drums 4 and are pivotally mounted inside them by means of eccentric bolts 14 through the holes 13 of the bats 5 to the brackets 9 located above the slots 12 diametrically opposite to the parallel or perpendicular to the knives 3 disks 2. Bolts 14 with eccentricity S have thrust heads 15 that support the beats 5 in operation and ensure their free movement in slots 12 of a rectangular shape Drums 4.

When encountering an obstacle, such as a lump of grass or a stone, bills 5 deviate in rectangular slots 12 of the reels 4 from their working position by an angle of up to 90 °. To prevent ingress of drums 4 of plant mass, they are equipped with covers 7, which are mounted on top with self-tapping screws to four flat brackets 8, mounted inside below the upper end of each drum 4 by an amount equal to the thickness of the cover 7, offset relative to the mounting holes 10 of the bases 6 by an angle of 45 °. Drums 4 for ease of operation are removable. The bases of the 6 drums 4 are mounted on the disks 2 and are rigidly bolted to the hubs of the rotary mower.

The use of articulated beats with a working part made according to a logarithmic curve with sharpened cutting edges will allow to carry out the processing of herbs during mowing and to speed up their drying in the field, as well as reduce the energy consumption of the processing process. The use of removable drums with articulated bills will make it easy to change damaged parts in the process.

Bibliography

1. Patent 2492618 RU, IPC A01D 34/64, A01D 43/10. Rotary mower with tier air conditioning / Otroshko S.A. (RU). - No. 2012108648/13; claimed 03/07/2012; publ. 09/20/2013, Bull. No. 26.

2. Patent 2371902 RU, IPC A01D 34/64, A01D 43/10. Rotary mower with air conditioning / Akhlamov Yu.D., Otroshko S.A., Sharikov N.D., Korovay B.C., Ilchenko V.S. (RU). - No. 2008100071/12; claimed January 10, 2008; publ. 11/10/2009, bull. No. 31.

Claims (2)

1. The rotary mower with dynamic air conditioning comprises a cutting apparatus with rotating disks with hinged knives and vertically mounted drums with bases in the lower part, covers and bills placed in the slots of rectangular drums and fixed from the inside of the drums, in the upper one, characterized in that removable drums, made in the form of hollow cylinders, rigidly attached with bases to the disks, are equipped in the upper part with beats - curved knives with bases of rectangular cross section and working their parts, made according to a logarithmic curve, with sharpened cutting edges, mounted by bases in the slots of the drums and pivotally mounted by eccentric bolts with thrust heads to brackets located above the slots inside the drums diametrically opposite to or parallel to the blade knives, and the slots provide a deviation from their working position at an angle of up to 90 °, and the diameter of the circle created by the ends of the beat during the rotation of the drums does not exceed the diameter of the circle, we form first ends hinged knife discs. 2. A rotary mower with dynamic dynamic air conditioning according to claim 1, characterized in that the covers in the upper part of the drums are fixed rigidly to flat brackets fixed inside below the upper end of each drum by an amount equal to the thickness of the cover, with an offset of 45 ° relative to the fixing holes of the bases.

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