RU2558393C1 - Rotary mower with device for intensifying grass wilting - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: rotary mower with a device for intensifying the grass wilting comprises a bearing beam with rotating rotors 2 and blades hingedly mounted on them. On the rotors 2 the vertical drums 4 with flanges 5 in the lower part are rigidly fixed. In the upper part the drums 4 have removable lids 8 to prevent ingress into the drums 4 of plant mass. Outside on the surface of each drum 4 two curved plates 11 are fixed, mounted obliquely at an acute angle relative 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 decreasing in the direction of rotation of the rotors 2 with the drums 4 and not exceeding the radius of the cutting edge of the hingedly mounted blades.

EFFECT: curved plates 11 provide the creation of fluffed and well aerated rolls of grasses, that contributes to their intense wilting.

2 cl, 4 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 as 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-hollow truncated cone, designed to remove mowed grass from the cutting zone, is successfully solved by the use of 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 by the fact that the rotary mower with the device for intensifying grass drying contains 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. Drums are installed on the rotors, which are removable hollow cylinders or truncated cones with caps in the upper part, rigidly attached to the rotors with the lower part, equipped with curved 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 drums, and 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 Tsami flail blades rotors.

Covers in the upper part of the drums are fixed rigidly to four flat brackets displaced inside the drums relative to the mounting holes of their lower part by an angle of 45 °.

Figure 1 shows a side view of a mower with a device for intensifying sowing herbs; figure 2 is the same, a top view; figure 3 is a side view in section in a device for intensifying wilting herbs; figure 4 is the same, top view.

A rotary mower with a device for intensifying grass drying contains a supporting beam 1 with rotating rotors 2 with knives 3 pivotally mounted on the rotors 2 and vertically mounted on rotors 2, which are removable hollow cylinders (pipes) or truncated cones equipped with flanges in the lower part 5, which are mounted on the rotors 2 and bolted 6 to the hubs 7 of the load-bearing beam 1. In the upper part, the drums 4 are equipped with removable covers 8, which prevent plant m from getting inside the drums 4 ssy. They are attached with self-tapping screws 9 to four flat brackets 10 located inside the drums 4. For the convenience of fastening the drums 4 to the rotors 2 and the hub 7 of the load-bearing beam 1, the brackets 10 are offset relative to the bolts 6 of the mounting flange 5 by an angle of 45 °.

Outside, on the surface of the drums 4, two curvilinear plates 11 are fixed, 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, decreasing in the direction of rotation of the rotors 2 with the drums 4. 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.

A rotary mower with a device for intensifying the drying of herbs works as follows. When a tractor with a mower is moving across the field, the torque from the tractor PTO is transmitted to the rotors 2 located on the supporting beam 1 with knives 3 pivotally mounted on the rotors 2 by drums 4, which are cylindrical pipes or truncated cones equipped with flanges in the lower part 5, which are installed on the rotors 2 and are bolted 6 to the hubs 7 of the 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 they are laid in a swath in well-aerated rolls, which greatly intensifies the process of drying. 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 forms 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 operation, especially when the drums 4 are damaged or the plates 11 are curved in a rigid form fixed on their outer surface, the drums 4 are removable. During operation, they are mounted on the rotors 2 by flanges 5 and are firmly 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 hubs 7 of the bearing beam 1.

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.

The source of information

1. A.S. 365119 SU, MKI A01D 43/10; A01D 57/24. Adaptation to mowers - conditioners for roll formation / 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, MKI 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., Chukhrai S.A. (RU). - No. 2005141693/11; claimed December 29, 2005; publ. 11/10/2007, Bull. No. 31.

Claims (2)

A rotary mower with a device for intensifying grass drying, containing rotors with vertical axes of rotation, cutting elements and curved plates 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, characterized in that the rotors are equipped with drums, representing removable hollow cylinders or truncated cones with covers in the upper part, rigidly attached to the rotors by the lower part, provided with curvature plates shape, 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 drums, 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 hinge knives rotors. 2. A rotary mower with a device for intensifying sacking according to claim 1, characterized in that the covers in the upper part of the drums are fixed rigidly to four flat brackets displaced inside the drums relative to the mounting holes of their lower part by an angle of 45 °.

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