SU1109078A1 - Ploughing unit - Google Patents

Abstract

I. TILTING UNIT, including traction equipment and a plow with adjustable width, the frame of which is made of a rotary bar carrying and associated with a hinge and hydraulic cylinder, characterized in that, in order to improve the quality of plowing when changing the width of the plow, it is a hinge. The connecting carrier and rotary beam is placed in front of the first plow body at a distance equal to 0.85-1.0 distances between the plow bodies and is shifted relative to the rotary beam towards the longitudinal axis of symmetry of the unit by the distance defined by the ratio ". (.-f), where m is the distance between the plow bodies; d is the distance from the first plow body to the hinge; (P / L is the angle between the rotary bar and the perpendicular of the frame 1 to the longitudinal axis of symmetry of the aggregate. 2. The unit according to claim 1, characterized in that the plow is equipped with a gauge mounted on the rotary bar. 00

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to tillage equipment for primary tillage

The arable unit is known, which includes traction equipment, a hitch and a plow with a variable width, the frame of which is made of two parts hinged and connected to each other and connected to a chain device with the possibility of transverse displacement. The disadvantages of this unit are design complexity and overloading. one of the movers

traction equipment, which reduces traction power and impairs the controllability of the unit.

An arable unit is also known, which includes traction equipment and a plow with adjustable grip width, the frame of which is made of a hinge bearing and associated with it a hinge and rotating bar.

The disadvantages of the known aggregate are a violation of the fusion of the surface of the plowed floor at the site of the first hull passage due to the constant width of the first hull and the distance from the furrow wall to the propulsion means.

The purpose of the invention is to improve the quality of plowing with a change in the plow width.

This goal is achieved by the fact that in the arable unit a hinge connecting the 1st and rotary bars is placed in front of the first plow body and a distance of 0.85-1.0 between the slewing and amphibious bodies. side of the longitudinal axis of symmetry of the unit to the distance determined by the ratio

-hk- | -) where 1 is the distance between the main bodies; d is the distance from the first plow body to the hinge; / 1 - the angle between the rotary bar and perpendicular to the longitudinal axis of symmetry of the unit.

In addition, the plow is equipped with a working width indicator mounted on the pivot beam.

FIG. 1 shows the proposed arable unit, top view; in fig. 2 - plow scheme with design parameters; in fig. 3 - pointer width of the plow.

The arable unit consists of traction means 1 with engines 2 and a plow 3. The plow frame is made of carrying bar 4, the hinge 5 connected with it and the hydraulic cylinder 6 of the rotary bar 7 on which the plow bodies 8 are mounted. Plow bodies 8 can be rotated in the horizontal plane while maintaining the angle of attack of the hulls in the direction of motion. On the swivel bar, there is a gauge width indicator, made in the form of a slider 9, a guide 10, scales 11 and arrows 12. The slider 9 is connected to the hydraulic cylinder 6, and the arrow 12 is rigidly fixed on it. The hydraulic cylinder 6 is coupled to the bearing bar 4 by a crank 13.

Arable unit works as follows.

When changing the width of the grip, the hydrocylid 6, acting on the slider 9 and the crank 13, retracts the rotary bar 7, while the plow bodies, which are connected between each other (not shown) and connected through it to the rotary bar 7, retain their position relative to the direction movement. To control the change in the width of the grip, the plow width indicator is used.

With a given capture width of the buildings b and the distance between them hi, the position of the rotary bar 7 in the horizontal plane is determined through the angle / by the formula {b

 arccos -.--. Asking value

d the removal of the hinge 5 in front of the first plow body within m "J 0.85 t, determine the distance R from the hinge 5 to the rotary bar 7 by the formula

Sch («- 4)

R

If the increment magnitude of the turning radius between the bodies is m, and between the hinge 5 and the first body is less than tn, then, accordingly, the catch width of the first body will change within smaller limits compared to the subsequent plow bodies.

As a result of the fact that the first hull slightly changes its position relative to the initial one. When changing the working width,

the distance is kept constant: С from the drive of 2 t of the vehicle to the wall of the furrow and the fusion of the plowed floor is ensured.

Fig, 1

Claims (2)

1. AGRICULTURAL UNIT including a towing device and a plow with an adjustable working width, the frame of which is made of a rotary beam bearing and connected by a hinge and a hydraulic cylinder, characterized in that, in order to improve the plowing quality when changing the plow working width, the hinge connecting the load-bearing and a swivel bar, placed in front of the first plow body at a distance equal to 0.85-1.0 of the distance between the plow bodies, and offset relative to the swivel beam in the direction of the longitudinal axis of symmetry of the unit by the distance nd relation where m - the distance between the plow bodies} d - distance from the first plow body to sharni- § pa; p> is the angle between the rotary beam and perpendicular 1 to the longitudinal axis of symmetry of the unit. 2. Unit pop. 1, characterized in that the plow is equipped with a working width indicator mounted on the rotary beam. SUg., And 09078 1 1109078 2