SU912074A1 - Snow plow - Google Patents

Description

(54) SNOWFLOW

one

The invention relates to agricultural machinery, in particular to aggregates for the formation of snow rolls. :

Snowpaws are known to form snow rolls, the dumps of which are made in the form of surfaces of rotation 1}.

Also known snowpaws, including traction means, dumps, pivotally interconnected by a spacer bar, which has a hydraulic mechanism for changing the grip width 21.

 On snow of shallow depth, known snow plowes form a low swath, which reduces snow retention and leads to underloading of the tractor, and at deep, overloading and stalling of the tractor occurs.

The purpose of the invention is to improve the uniformity of loading of the traction means by ensuring automatic adjustment of the width of the snowman.

The goal is achieved by the fact that each blade is made in the form of two pivotally connected parts and is equipped with a snow height sensor, made in the form of an iceddy.

n connected to the hydraulic cylinders by means of a spool valve, and by the fact that the spacer connecting the dumps is made adjustable in length.

The drawing shows schematically the proposed snow pits.

The snow plows has a frame 1 and piles 2 and 3. The piles 2 are fixed to the ends of horizontal rods 5 by means of racks 4, which are installed with the possibility of

10 transverse guides 6 made on the frame of the snow trap. The dumps 3 are connected to the dumps 2 with the help of hinges 7. The rear ends of the dumps 3 are connected by a spacer bar 8 with the help of hinges 9 installed in the hubs of hinges 9. The spreader bar S is filled with expansion tool and is equipped with a clamping device, made in the form of a screw coupling. 10. The ends of the rods 5 of each blade 2 are connected between

Claims (2)

20 with cross-pieces 11 connected to the rods of hydrocyl-shdr 12. Between the dumps 3 there is a sensor of the height of the formed snow roll mounted in 39 kind of ski 13. Ski 13 is connected through the lever system 14 to the control unit 15 by the mechanism 12 of the dumps sliding. The control unit 15 is implemented in the input of the hydraulic spool valve, the Snegopakh works as follows. When moving the snow plow across the field, in the case of a decrease in the depth of the snow cover on the plot to be processed, the height of the snow roll formed by the snow pushes decreases in comparison with the specified value. The sensor 13, which is supported on top of the top of the roll, descends with respect to the snow ‑ plow frame 1, on which the hydraulic spool valve is mounted, due to a decrease in the height of the roll. As a result of this, under the pressure of the working fluid coming from the hydraulic trunk, the pistons of the hydraulic cylinders 12 move the blades 2, increasing the width of the snow groin. With the expansion of the dumps 2, the number of snow that is captured and shifted by the snow plow increases, the drag resistance and the height of the snow roll being formed increase. Increasing the height of the snow roll causes the ski 13 i to rise to the normal position. Thereafter, due to the locking of the hydraulic cylinders 12, the movement of the dumps 2 stops. With an increase in the depth of the snow cover on the area to be treated, the floor increases in comparison with the amount of snow shifted by the snowfalls and the height of the snow roll formed by the snowfalls. This causes the rise of the roll height sensor - ski 13 and leaning on the top of the roll. dumps 2 snow dogs with hydraulic cylinders 12. Depending on the physical and mechanical properties of snow, the distance between the heaps can be adjusted by changing the length of the spreader bar 8. Automating the process of adjusting the snow trap width provides the tractor with a more stable operation, increases the uniformity of the height of the roll, frees the driver the occupations of constant observation of the work of the snow-ass. Claim 1. Snegopakh, which includes traction means dumps, pivotally interconnected by a spacer bar, having hydrocyliidry mechanisms for changing the width of the grip, characterized in that, in order to improve the uniformity of loading of the traction means by providing automatic adjustment of the width of the snow plow, each dump It is made in the form of two pivotally connected parts and is equipped with a snow roll height sensor, made in the form of a ski, and connected to hydraulic cylinders by means of a spool valve. 2. Snow pads according to claim 1, characterized in that the distance bar is adjustable in length. Sources of information taken into account during the examination. 1. USSR author's certificate No. 605565, cl. A 01 B 13/16, 1978 .. 2.Certificate of the USSR N 471071, cl. A 01 B 13 / (Yu, 1975 (prototype).