(57) Abstract:Use: agricultural machinery, sprinkler apparatus. The inventive device includes a rotary shaft 2, provided with a nozzle 3, the rotation is carried out under the action of the torque generated by the reactive force of the jet, flying from the barrel 2, the axis 4 which does not intersect with the axis 5 of rotation of the shaft 2. On the shaft 2 from the side of its axis of rotation is stationary fortified two blades 6, 7, the arrangement of which is subject to the following conditions:
g > f > e > 0.5 d; b > h > and > 0; k > 0,
where d is the diameter of the nozzle; K - shortest distance between the blades 6, 7; b, a, h, and b is the distance from the end of s; g, f - distance from the axis 4 to respectively closest to him end closest to the axis 4 of the blade 6, to the point of intersection of the continuation of the blade 6 with the second blade 7, until very close to the axis of the barrel 2 of the second end of the blade 7. 3 Il. The invention relates to agricultural machinery, mainly to structures sprinkling apparatus with a rotating barrel, designed for uniform distribution of rain on the irrigated area.It is known that the best mode of their operation is intermittent rotary movement is ikaetsya maximum for the given conditions (pressure, the flow angle of the jet) range and significantly reduces the danger of formation of runoff.To create such a regime, there are various devices.The most popular of them received the following:
use hrapovic device that converts a continuous rotation of the impeller placed in the stream, intermittent rotary movement of the rotary shaft (an example of the application of such a device can serve as a sprinkler apparatus DD - 30);
the use of oscillating under the action of the jet rocker, periodically turning the rotary barrel in the resulting collisions (an example of the application of such a device can serve as a sprinkler apparatus "Ross 1" and "Ross 3").For these and other known devices typical
the complexity and high cost of sprinkling devices;
the need for systematic maintenance (lubrication of moving parts, winter storage in warehouse conditions, what should be the dismantling of the sprinkling apparatus with risers at the end of the irrigation season, with the subsequent installation in the beginning of the next);
resulting from said increased demands is redstavlena in Fig.1, side view of Fig.2 a top view with a stationary rotary shaft; Fig. 3 a top view when rotating the rotary shaft, on which is shown the stationary part (the housing 1, a rotary shaft 2, provided with a nozzle 3, the axis of which 4 does not intersect with the axis of rotation 5 of the rotary shaft, most closely located to the nozzle blade 6, the second blade 7, the bracket 8, with which the blades are attached to the rotary shaft.The distinctive feature of the proposed device sprinkling apparatus is that the position of both blades, reinforced stationary relative to the rotary shaft from its axis of rotation, subject to the following conditions:
g > f > e > 0.5 d; b > h > and > 0; k > 0,
where d is the diameter of the nozzle; k shortest distance between the blades; and, h, b the distance from the end of the nozzle; e, g, f distance from the nozzle axis to respectively closest to him end closest to the axis of the nozzle vanes to the point of intersection of the continuation of this blade with a second blade, until very close to the axis of the nozzle end face of the second blade.The principle of the proposed sprinkler apparatus is as follows: Q jet departing from the stationary nozzle due to the presence of gaps (e, f) between it and l is achiwa maximum range.Because the axis of the nozzle does not interfere with the rotation axis of the rotary shaft, creates a torque M reactive power P of the jet, which tends to rotate the barrel (M=PmCos, where m shoulder; q angle of the jet). Under the action of the torque shaft is rotated and the blades attached to it, interact with the jet leaving the nozzle.First stream enters at the closest to the nozzle blade. As a result of interaction of the jet with this blade you receive the component of the force of this interaction, which directs to the second blade. Appears when the braking torque of the force of interaction of the jet with this blade slows, and then stops the rotary shaft. When you stop turning the trunk stream again reaches its maximum range. The process is repeated and the rotary shaft moves in a jerky-rotational mode.The positive effect from the use of the proposed device sprinkling apparatus is that
simplifies the design and manufacturing technology, enhanced reliability and durability, since it excludes such nodes and the details of the mechanisms of rotation of the rotary shaft as the impeller of the rocker arm, the ratchet mechanism is you're on maintenance, including repairs, cleaning, lubrication;
there is no need for storage in the winter to remain parked during the entire service life;
for these same reasons, reduced requirement for restriction weight characteristics, eliminating the need for annual installation and dismantling periods. Therefore, the apparatus can be made cheaper in comparison with aluminum alloy material, for example, of steel tubes for the manufacture of shafts, of cast iron for body parts, etc.The proposed device sprinkling devices verified the calculations and the experimental samples. The test results confirmed the stated provisions. Furthermore, the versatility of the device, which can be used, for example, in the fountains with the rotating shaft, the apparatus for wastewater irrigation livestock farms, in devices designed for fire-fighting purposes, for example, on isoclad. Sprinkling apparatus comprising a rotary shaft, provided with a nozzle whose axis does not intersect with the axis of rotation of the rotary shaft, and a brake device, characterized in that the braking device is made in VI is>/BR>g>f>e>0.5 d;
where d is the diameter of the nozzle;
To the shortest distance between the blades;
a, h, b the distance from the end of the nozzle, e, g, f distances from the axis of the nozzle, respectively, to the nearest to him butt first from the nozzle vanes, to the point of intersection of this blade with a second blade that is nearest to the axis of the nozzle end face of the second blade
this blade and the axis of rotation of the rotary shaft located at one side of a vertical plane passing through the axis of the nozzle dodavatelskeho apparatus.
FIELD: agricultural engineering, in particular, equipment for drop irrigation of farm crops.
SUBSTANCE: apparatus has cylindrical casing with inlet and outlet openings. Cylindrical casing has threaded covers and body. Valve and elastic cuff are movably positioned inside cavity of cylindrical casing. Apparatus is further equipped with additional cuff. Main and additional cuffs are provided with orifices. Valve is made in the form of concavo-concave lens arranged in spherical belt. Valve is manufactured from material having density smaller than density of water, in particular, valve may be made from cork of 0.2-0.3 t/m3 density. Valve is arranged in casing between cuffs and is adapted for alternating contacting through cuffs with projections oppositely arranged inside casing cavity. Projections are made in the form of spherical segments, with radius of spheres of segments being smaller than radius of spheres of concavo-concave valve lens. Difference between radii of projection sphere and that of spheres of concavo-concave valve lens is equal to thickness of elastic cuffs. Channels on apexes of cover and casing projections are extending in radial direction toward inlet and outlet openings.
EFFECT: increased efficiency and enhanced reliability in operation.
4 cl, 4 dwg