SU1001904A1 - Sprinkler rod - Google Patents

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, namely field sprayers for surface distribution of a liquid by a rod.

The known boom sprayer contains a container with a working fluid, a pump, a pipeline system with valves, a boom with sprayers and a pipeline, supplying the working fluid to the boom, while spraying. The tel is equipped with a double-piston VYV4 multiplier connected to the pipeline, and the rod is made with foam generators connected to the multiplier via a pipeline system with valves 1.

A disadvantage of this device is the complexity of its design.

A spray boom is known, which includes a central frame connected to the sprayer, side sections hinged to it by means of brackets, suspended from cross members of the central beam by means of flexible elements 2.

The drawback of the device lies in the uneven distribution of the liquid due to the oscillations of the horizontal component of the velocity

individual sections of the boom section relative to the treated surface, which is caused by oscillations of the boom section relative to the sprayer in the direction of its movement. With an increase in the length of the side section, this uneven distribution increases, which is one of the limitations of the width of the opal hub.

ten

The purpose of the invention is to increase the uniform distribution of the liquid by the sprayer boom by reducing the influence of the longitudinal oscillations of the pant-GI.

15

The goal is achieved by the fact that in the proposed rod each bracket is connected to a double-swiveled double hinge and is mounted for movement relative to the frame stand,

20, wherein one of the hinge axes is located in a vertical plane and inclined towards the sprayer, while the other is connected with a side boom section.

FIG. 1 shows the general view.

Claims (2)

25 pieces in FIG. 2 is a view along arrow A, and FIG. i; in fig. 3 - section AA, in FIG. 1 | in FIG. 4 - diagrams of liquid droplets distribution I - without rotating the boom section, II - with rotating boom section (plots are built for the following conditions: droplet diameter - 0.5 mm, spray speed of bodies 5 m / s, relative speed amplitude of the boom section in the considered cross section - 2.88 m / s, the period of oscillations of the rod -2C). The sprayer boom includes a central frame 1, connected to the sprayer, on racks 2 of which brackets 3 with double hinges 4 are mounted, to which the side sections 5 of the boom with nozzles 6 are attached. The side sections 5 with j matte 3 are suspended from the straps 7. The central frame 1 with the help of flexible elements 8. The ha ha 9 supports the lateral section 5 in a position parallel to the surface being machined. The upper end of the rod 9 is fixed in the spherical hinge 10 mounted on the ring 11, the ring 11 being located in the upper part of the bracket on 3 and having the possibility of rotation about its vertical axis. The lower end of the pull rod 9 is fixed to the side section 5 using a spherical hinge. The boom works as follows. The sprays 6 are mounted on the boom section 5 in such a way that when the sprayer moves along the field and immobility relative to the sprayer of the lateral section 5 , the direction of the absolute velocity of the jet of liquid coming out of the sprayer 6 is close to the vertical. When the boom section 5 deviates from the equilibrium position to a certain angle (f simultaneously rotates relative to its own The axle axis is at an angle of 3, which is due to the angle of the double hinge 4 axis from the helicopter to the axis of symmetry of the sprayer at an angle c /. The angle of rotation of section 5 relative to its own axis is determined from the expression: T-Sivi Marcos. A - siM When oscillating the boom section determines the magnitude and direction of the horizontal component of the absolute velocity of the jet of fluid at the spray gun outlet and, therefore, the range and direction of fluid flow in the air relative to the boom section. The kinematically matching of the angles of deviation of section 5 from the equilibrium position Y and its rotation around its own y-axis ensures the deposition of liquid sprayed over a half-period of oscillation of the rod section in a section shorter than the path traveled by the section of the rod over a half-period of oscillation, in the case where the boom section 5 relative to the surface to be treated exceeds the speed of movement of the sprayer. Conversely, when the speed of the boom section is less than the speed of the sprayer, the liquid is deposited at a site of greater length than the boom path over the treated surface during this half-period, which makes it possible to increase the longitudinal uniformity of the liquid distribution. The above is true for the coarse spray of a liquid, since the fine droplets very quickly lose their initial velocity during deposition in air. Turning J :: Action 5 boom 3 around its own axis has a positive effect on the distribution of the liquid, starting from a certain distance from the fixing point of section 5 in the hinge 4. On the part of the working width of section 5 located closer to the sprayer, the liquid distribution worsens However, over the entire width of the rod grip, the uneven distribution of the fluid decreases as the size of the doses of the applied fluid decreases. The proposed device allows for spraying to reduce the longitudinal uneven distribution of the liquid, due to the longitudinal oscillations of the side sections of the rod, which leads to more efficient use of fertilizers and chemical chemicals and an increase in the yield of agricultural crops. Invention formula Spray boom comprising a center frame connected to the sprayer, side sections hinged to it by means of brackets, suspended from the cross members of the center frame with flexible elements, so as to increase the uniformity of fluid distribution by reducing the effect of longitudinal vibrations the rods, each bracket is connected to the side section with a double hinge and is mounted for movement relative to the frame frame, with one of the hinge axes wife in a vertical plane and is inclined to the sprayer, and the other associated with, side section bar. Sources of information taken into account in the examination 1. The author's certificate of the USSR 673256, cl. A 01 M 7/00, 1975. 2. US patent 3807676, cl. 260-33.6 (prototype). 9fffff8 2f27gffiO S and I r I  / Jiy / j -4-- 4 s at