RU2701943C1 - Rotary mower with device for conditioning forage grasses - Google Patents

Abstract

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building and can be used in machinery for fodder production. Rotary mower with device for conditioning forage grasses comprises cutting unit with rotating discs 2 with hinged knives 3 and beater 4, which are made of angles with different sides. Along the wide flanges of the angles the chamfers have edges with blunted edges and fastening holes are located. Short side flanges of angles play the role of blades. Each pair of beats 4 is installed on each disc 2 with its wide flanges diametrically opposite and perpendicular to blades 3 of discs 2. Beaters 4 are hinged to hubs of mower.

EFFECT: rotary mower reduces load on drive of cutting device and increases traumatic treatment of stems.

1 cl, 4 dwg

Description

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

Known rotary mower with air conditioning device [1], containing 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 the drums of a rectangular shape, in the upper part and cotted fingers secured from the inside of the drums . Removable drums are made in the form of hollow cylinders, rigidly attached with the lower part to the disks, equipped with upper bits - knives made of a strip of rectangular cross-section, each of which is equipped with a cutting edge located at an angle of 45 ° on one side, installed in the slot of the drums and pivotally secured by holes with another cotter pin in brackets located inside the drums diametrically opposite parallel or perpendicular to the blade knives, they deviate the beats from their working position by an angle of up to 90 °, and the diameter of the circle created by the ends of the beat knives during the rotation of the drums does not exceed the diameter of the circle formed by the ends of the hinged knives of the disks. Covers installed in the landing holes of the upper part of the drums with a seating depth equal to the thickness of each cover are fixed rigidly to flat brackets located inside the drums under the lower edge of each landing hole with an offset of 45 ° relative to the mounting holes of the bases.

The disadvantage of this mower is the relatively high load on the drive of the cutting apparatus due to the cantilever arrangement of the hinged bills - knives in the upper part of the removable cylindrical drums relative to the hinged knives of the disks of the rotary mower, which increases with the height of the drums. In addition, this mower has a regrinding of mowed plants in the cutting zone and a not very high quality of stem injury.

Known rotary mower with knife air conditioning [2], containing a cutting apparatus with rotating disks with hinged knives and vertically mounted drums with bases in the lower part, bills placed in the slots of the drums of a rectangular shape and secured from the inside of the drums with forelocked fingers in their upper part. 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 made of a strip of rectangular section with two cutting edges located along the axis of each knife - one on its upper plane, the other opposite to the first on the bottom, installed in the slot of the drums and pivotally pivotally secured with fingers in brackets located inside the drums, the knife is diametrically opposite to the parallel or perpendicular to the knife disks, and the slots provide a deviation of the beats from their working position by an angle of up to 90 °, and the diameter of the circle created by the ends of the beat-knives during rotation of the drums does not exceed the diameter of the circle formed by the ends of the hinged knives of the disks.

The disadvantage of this mower is the relatively high load on the drive of the cutting apparatus due to the cantilever arrangement of the hinged bills - knives in the upper part of the removable cylindrical drums relative to the hinged knives of the disks of the rotary mower, which increases with the height of the drums. In addition, this mower has a regrinding of mowed plants in the cutting zone and a not very high quality of stem injury.

The purpose of the invention is to reduce the load on the drive of the cutting apparatus and the regrinding of plants in the cutting zone, as well as increasing the traumatic treatment of the stems.

This goal is achieved in that the rotary mower with a device for conditioning fodder grasses contains a cutting apparatus with rotating discs with hinged knives and bills. The beats are made of corners with different sides, along the wide shelves of which there are chamfers with blunt edges and mounting holes, and the side, short shelves act as blades, each pair of beats installed on each disk with its wide shelves diametrically opposite and perpendicular to the blade knives and attached articulated to the hubs of the mower through the beat holes, bolts, spacer sleeves, flat washers and Grover washers, and the diameter of the circle created by the rounded ends of the beaters does not exceed Diameter of the circle formed by the ends of the hinge blades discs.

In FIG. 1 is a front view of a rotary mower with a device for conditioning fodder grasses; in FIG. 2 - the same, top view; in FIG. 3 is a top view of the beater assembly; in FIG. 4 is a section AA in FIG. 3.

A rotary mower with a device for conditioning fodder grasses contains a supporting beam 1 with rotating disks 2 with knives 3 pivotally mounted on the disks 2 and beats 4 made from a corner with different sides. Along the wide flange of the beat 4 there is a chamfer with a blunt edge 5 and there are two mounting holes 6 (to ensure left and right rotation), offset to the short side flange 7 to align the axial center of gravity. The height of the blunt edge 5 of the bevel 4 of the chamfer is about 2 mm. Side short regiments beat 4 serve as blades. Each pair of beaters 4 is mounted on each disk 2 with its wide shelves diametrically opposite and perpendicular to the knives 3 and is pivotally attached to the hubs of the mower through holes 6 of beaters 4, bolts 8, spacer sleeves 9, flat washers 10 and washer Grover 11. Spacer sleeves 9, installed directly on the disks 2, they are equipped with shoulders, on which they rest on their wide shelves of the beater 4. The height of the working part of the spacer sleeves 9 exceeds the thickness of the shelves of the beater 4 to ensure their unhindered rotation. The diameter of the circle created by the ends of the beat 4 during rotation of the disks 2 does not exceed the diameter of the circle formed by the ends of the hinge knives 3 of the disks 2. To be able to deflect when meeting an obstacle during operation, the ends of the beat 4 are rounded.

The rotary mower with a forage grass conditioning device works according to the principle of traditional mowers. The torque from the tractor PTO is transmitted to the disks 2 located on the supporting beam 1, which allows the knives 3 and the saws 4 to rotate at a speed of 3000 rpm and cleanly cut off the grass. However, when mowing long-stalk forage crops, especially clover, a partial overgrowing of the mowed plants in the knife cutting zone is observed 3. To remove the plant mass from the cutting zone and carry out the conditioning process, on the discs 2, beats 4 are hinged to the mower hubs. Each pair beat 4 is located on the disks 2 diametrically opposite and perpendicular to the knives 3 with the help of bolts 8, spacers 9, flat washers 10 and washers Grover 11.

The cut off plant mass falls into the coverage area of beat 4, which condition the plant stems with their chamfers with blunt edges 5 (break, knead, cut the cuticle of the stems, etc.) and with their lateral shelves 7, which act as blades, create significant air flow and fling effect, due to which the mowed treated mass is ejected from the cutting zone into a well-aerated roll.

When encountering an obstacle, such as a stone, the hinge knives 3 and the hinge beams 4 deviate from their working position and after passing the obstacles return to their original position. For the possibility of deviation when meeting with an obstacle, the ends of beat 4 are made rounded.

The use of articulated beats with chamfers with blunted edges and side shelves, which act as blades, will make it possible to qualitatively process grasses during mowing and to accelerate their drying in the field, as well as to reduce the overgrowing of plants in the cutting zone and the load on the drive of the cutting apparatus.

BIBLIOGRAPHY

1. Pat. 2588180 RU, IPC A01D 43/10; A01D 34/64. Rotary mower with air conditioning / S.A. Otroshko (RU), Yu.D. Akhlamov (RU), V.M. Kosolapoe (RU), Romaniuk Wenceslas (PL), N.D. Sharikov (RU), A.V. Shevtsov (RU). - 2015107530/13; stated on 03/04/2015; publ. 06/27/2016. Bull.№18.

2. Pat. 2588183 RU, IPC A01D 43/10; A01D 34/64. Rotary mower with knife air conditioning / S.A. Otroshko, N.D. Sharikov, Yu.D. Akhlamov (RU). - 2015107533/13; stated on 03/04/2015; publ. 06/27/2016, Bull. Number 18.

Claims (1)

Rotary mower with a device for conditioning fodder grasses, containing a cutting apparatus with rotating discs with hinged knives and bills, characterized in that the bills are made of corners with different sides, along the wide shelves of which there are chamfers with dull edges and mounting holes, and the side holes are short shelves serve as blades, with each pair of beats installed on each disk with its wide shelves diametrically opposite and perpendicular to the blade knives and mounted hinged Mower hubs through holes beat, bolts, spacer sleeves, flat washers and lockwashers, and the diameter of the circle created by the rounded ends beat does not exceed the diameter of the circle formed by the ends of the hinge blades discs.

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