RU2564393C1 - Rotary mower with fluffer - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: rotary mower with a fluffer comprises rotors with vertical axes of rotation and the cutting elements. The drums are mounted on the rotors, constituting removable hollow cylinders with lids in the upper part. The drums are rigidly attached with the lower portion to the rotors. The drums are provided with removable curved plates. The plates are fixedly mounted on the outer surface of the drums obliquely at an acute angle to the direction and the plane of rotation of the rotors with the drums. The outer edges of the plates have a variable radius decreasing in the direction of rotation of the rotors with the drums and not exceeding the radius of the cutting edge formed by the ends of the articulated rotor blades. On the inner side the plate are provided with protrusions with openings. The protrusions are inserted into the slots of the drums and attached inside to the nuts welded under the slots.

EFFECT: simplified design, intensification of wilting of the mowed grass.

6 dwg

Description

The invention relates to agricultural machinery and can be used in rotary mowers for the formation of friable rolls when mowing natural and seeded grasses and accelerate their drying.

A device for mower conditioners for forming rolls [1] is known, consisting of flaps hinged on both sides of the flather rolls of various lengths, with one flap located below the other.

The disadvantage of this device is that the flaps of the device form two streams of flattened mass, which are laid in a swath on top of each other. With this laying, despite the location of the plant stalks along the rolls, a narrow and high roll is formed, which does not contribute to its rapid drying.

A device for a mower conditioner to reduce the density of the roll [2], installed behind the conditioning mechanism. The device contains a feed conveyor and a screw installed behind it, made with two sections having mutually opposite winding directions to increase the width of the roll.

The disadvantage of this device is the design complexity and high material consumption.

Known rotary working body of the mower [3], containing a rotor with a vertical axis of rotation, a cutting element made in the form of a flat annular disk with a pointed outer edge mounted coaxially with the rotor and mounted on its lower base. The rotor is made in the form of a hollow truncated cone with an annular flange on the lower base and a spline hub at the upper base and has two curvilinear plates mounted on the surface of the rotor obliquely at an acute angle relative to the direction and plane of rotation. The outer edges of the curved plates mounted on the rotor have a variable radius, the value of which is less than the radius of the cutting edge of the disk cutting element and decreasing in the opposite direction of rotation.

The disadvantage of this working body is that its rotor, made in the form of a hollow truncated cone, a cutting element in the form of a flat annular disk with a pointed outer edge and two curvilinear plates rigidly fixed to the rotor when meeting with foreign objects during mowing, for example stones will be damaged. Therefore, the operation of rotary mowers with such working bodies is expensive, since they will need to be completely changed. Changing only a flat annular disk, difficult to manufacture, requires increased time. In addition, the use of such a design with inclined plates mounted on the surface of the rotor - a hollow truncated cone, designed to remove mowed grass from the cutting zone, is successfully solved by using hinged, easily removable half-screw knives on modern rotary mowers.

The purpose of the invention is to simplify the design, reduce material consumption, intensify the drying of mowed herbs by ensuring their stacking in fluffy, well-aerated rolls.

This goal is achieved in that the rotary mower with a cultivator contains rotors with vertical axes of rotation, cutting elements and curvilinear plates mounted on the outer surface of the rotors obliquely at an acute angle with respect to the direction and plane of rotation of the rotors. Drums are installed on the rotors, which are removable hollow cylinders with caps in the upper part, rigidly attached to the rotors by the lower part, equipped with curvilinear removable plates rigidly mounted on the outer surface of the drums obliquely at an acute angle with respect to the direction and plane of rotation of the rotors with the drums, moreover, the outer edges of the plates have a variable radius, decreasing in the direction of rotation of the rotors with drums and not exceeding the radius of the cutting edge formed by the ends of the hinge knives of rotors, and on the inside of the plate are equipped with protrusions with holes that are inserted into the slots of the drums and fastened inside to the nuts welded under the slots.

Figure 1 shows a side view of a mower with a blower; figure 2 is the same, a top view; figure 3 is a side view in section in a rotor with a drum tumbler; figure 4 is the same, a top view; figure 5 is a side view in section in section of the drum assembly; figure 6 is a top view of a removable plate of a curved shape.

A rotary mower with a cultivator contains a supporting beam 1 with rotors 2 rotating towards each other with knives 3 pivotally mounted on them and vertically rigidly mounted on rotors 2 with drums 4, which are removable hollow cylinders (pipes) equipped with flanges 5 at the bottom that are installed on the rotors 2 and bolted 6 to the hubs 7 of the supporting beam 1. In the upper part, the drums 4 are equipped with removable covers 8, preventing the ingress of drums 4 of plant mass. They are attached with screws 9 to four flat brackets 10 located inside the drums 4 with an offset relative to the bolts 6 of the mounting flange 5 at an angle of 45 °. Outside, on the surface of the drums 4, two removable plates 11 are curved, mounted obliquely at an acute angle with respect to the direction and plane of rotation of the rotors 2 with the drums 4. The outer edges of the plates 11 have a variable radius that decreases in the direction of rotation of the rotors 2 with the drums 4. The wide part of the plates 11 is located in the lower part of the drums 4 behind the hinged knives 3 of the rotors 2 and forms the largest radius, gradually decreasing as the plate rises up. In the upper part of the reels 4, it disappears, that is, it becomes the smallest, but in the next quadrant in the direction of rotation. The inner part of the plates 11 is provided with protrusions 12 with two holes 13. The plates 11 are inserted by protrusions 12 into the slots 14, made in the drums 4 obliquely at an acute angle with respect to the direction and plane of their rotation, until the inner edges of the plates 11 abut against the forming surface of the drums 4 and fastened internally by bolts 15 through the holes 13 of the protrusions 12 to the nuts 16 welded under the slots 14.

Rotary mower with a dryer operates as follows. When the tractor with the mower moves across the field, the torque from the tractor PTO is transmitted to the rotors 2 located on the supporting beam 1, rotating towards each other, with knives 3 pivotally mounted on the rotors 2 and vertically mounted on the rotors 2, which are cylindrical pipes equipped with the lower part of the flanges 5, which are mounted on the rotors 2 and are bolted 6 to the hubs 7 of the load-bearing beam 1.

When the rotary mower is moved to the grass stand, the hinge knives 3 of the rotors 2 cut the grass, and every two plates 11 of curved shape mounted on the outer surface of the drums 4 obliquely at an acute angle with respect to the direction and plane of rotation of the rotors 2 with drums 4, raise the mowed grass and smoothly stack them in swath in fluffy, well-aerated rolls. For this, the outer edges of the plates 11 have a variable radius decreasing in the direction of rotation of the rotors 2 with the drums 4, and the wide part of the plates 11 is located in the lower part of the drums 4 behind the hinged knives 3 of the rotors 2 and form the largest radius, gradually decreasing as the plate rises. In the upper part of the reels 4, it disappears, that is, it becomes the smallest, but in the next quadrant in the direction of rotation.

For ease of use, the drums 4 and the plate 11 of a curved shape are removable. During operation, the drums 4 with the plates 11 are mounted on the rotors 2 with flanges 5 and are rigidly bolted to the hubs 7 of the load-bearing beam 1. Removable covers 8 prevent the ingress of drums 4 of plant mass. They are attached with self-tapping screws 9 to four flat brackets 10 located inside the drums 4. The brackets 10 are offset relative to the bolts 6 of the mounting flange 5 by an angle of 45 ° for the convenience of fastening the drums 4 to the rotors 2 and the hub 7 of the supporting beam 1. If grass plates are damaged during mowing 11 of any drum 4, unscrew the screws 9 from the flat brackets 10 and remove the cover 8. Then, unscrew the bolts 15 from the nuts 16, welded inside the drums 4 under the slots 14, made obliquely at an acute angle with respect to the direction and plane and the rotation of the rotors 2 with the drums 4 and pull out the protrusions 12 of the plates 11 with two holes 13. Take new plates 11 and install them in the slots 14 with the protrusions 12 until their inner edges stop in the forming surface of the drums 4. Insert the bolts 15 into the holes 13 of the protrusions 12 plates 11 and screw them into nuts 16, welded inside the drums 4 under the slots 14. Then cover 8 is mounted and fastened with screws 9 to flat brackets 10.

The use of a rotary mower equipped with removable drums with curvilinear plates rigidly fixed on their outer surface when mowing grass stands allows for laying mowed grass in fluffy, well-aerated rolls, which makes it possible to intensify the drying process and, due to the simplification of the design, significantly reduce the material consumption of the developed device compared to with flattening rollers traditionally used in the national economy or rotary roller conditioning units power.

BIBLIOGRAPHY

1. A.S. 365119 SU, IPC A01D 43/10; A01D 57/24. Adaptation to mower conditioners for forming rolls / Lavrenov V.V., Orlov P.S., Smirnova L.I., Chikhachev A.V., Ivanov E.V. (SU). - No. 1682833 / 30-15; claimed 07/20/1971; publ. 01/08/1973, Bull. No. 6.

2. A.S. 1166715, IPC A01D 43/10. Device for mower conditioner to reduce roll density (SU). - No. 3693613 / 30-15; claimed 07/20/1984; publ. 07/15/1985, Bull. No. 26.

3. Patent 2309573 RU, IPC A01D 34/63. Rotary working body of the mower / Sigaev EA, Buziyan O.N., Chukhray S.A. (RU). - No. 2005141693/11; claimed December 29, 2005; publ. 11/10/2007, Bull. No. 31.

Claims (1)

Rotary mower with a desiccant, containing rotors with vertical axes of rotation, cutting elements and curved plates mounted on the outer surface of the rotors obliquely at an acute angle with respect to the direction and plane of rotation of the rotors, characterized in that the rotors are fitted with removable hollow drums cylinders with caps in the upper part, rigidly attached with the lower part to the rotors, equipped with removable curvilinear plates rigidly mounted on the outer the surface of the drums obliquely at an acute angle with respect to the direction and plane of rotation of the rotors with drums, and the outer edges of the plates have a variable radius that decreases in the direction of rotation of the rotors with drums and does not exceed the radius of the cutting edge formed by the ends of the hinged knives of the rotors, and from the inside of the plate equipped with protrusions with holes that are inserted into the slots of the drums and are mounted inside to the nuts welded under the slots.

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