SU141346A1 - Mounted mower for highlands - Google Patents

Description

Mountain compact mowers are known, the cutting apparatus of which can change its position relative to the frame and remain constantly parallel with the surface of the meadow, regardless of its slope. Their disadvantage is the low productivity of the unit.

The proposed mower does not have this drawback and is a productive machine with a normal cutting and gripping machine. The mower can work on mountain slopes, both along and across the slope with any angle of inclination within 25 ° and at the same time maintains the parallelism of the cutting apparatus relative to the soil surface. This is achieved by using a movable frame connected to the frame of the tractor by two hinges, one of which is spherical and attached to the tractor by means of a telescopic arm-suspension. The constant position of the cutting unit relative to the soil surface is maintained by an external hydraulic cylinder and a return spring connecting the hinge and rigid parts of the mower frame.

FIG. 1 shows a diagram of the mower, side view; in fig. 2, also, top view; in fig. 3 - also, front view; in fig. 4 is a diagram of the position of the cutting apparatus and the drive, when operating on a slope; and in FIG. 5 - also when working on level ground. The mower is a hinged design of the frontal type and is aggregated with mountain tractors of the SS-8G type (or with a self-propelled mountain chassis).

The device consists of a U-shaped rigid frame 1 with a front cutter 2 from the mower KNU-6. The longitudinal bars of the U-shaped frame are interconnected by a cross member 3, with which it is fixed to the hinged suspensions 4 mounted on the front bar 5 of a tubular section of the movable frame.

One end of the beam 5 of the movable frame is attached by means of a hinge 6 to the arm 7, rigidly fixed to the frame of the tractor

or a chassis and the other end with a spherical hinge 8 is connected to a telescopic bracket 9 mounted on the frame of the tractor's support wheel (or chassis). On the crossbar 3 and the beam 5 of the moving frame, brackets 10 are welded to fasten the external hydraulic cylinder // control and return springs 12.

The drive of the cutter, its apparatus, is carried out from the tractor's power take-off shaft (or chassis) through a counter-drive 13, a two-stage chain drive 14, a crank mechanism 15, and a shaft 16. The use of a two-stage chain drive, the sprockets of which can maintain center distance and change within certain limits, the angle between the axes of the gears ensures normal working conditions for the cutting apparatus, regardless of the terrain slope.

When the machine is working on a slope and when the tractor is copying a slope of the ground, the cutting unit, due to the presence of hinges at the connection of the movable frame, is always in a position parallel to the soil surface.

Subject invention

Claims (2)

1. Hinged mower for mountainous areas, aggregated with mountain tractors (self-propelled chassis), including a front cutter, frame, crank-connecting rod drive mechanism and lifting control hydraulic cylinder, so that it can be used for mountain slopes, both along and across the slope with any angle of inclination within 25 ° and preservation of the cutting apparatus parallelism of the soil surface, it is equipped with a nodvizimny frame connected to the tractor frame (chassis) with two hinges, one of which It is spherical and attached to the tractor using a telescopic suspension bracket. 2. The mower according to claim 1, characterized in that in it maintaining the constant position of the cutting unit relative to the soil is supported by an external hydraulic cylinder operating in conjunction with a return spring connecting the hinge and rigid parts of the mower frame. i “Cf:“: 57 SMFW q x 07) 9 fwpiN 49f%. 1rig Vuz h Compiled by expert V.S. Chernomordik