CN201760363U - Rotary hydraulic atomization spray nozzle - Google Patents

Abstract

The utility model relates to a rotary hydraulic atomizing nozzle, which is mainly used in light agricultural aircraft. The rotary hydraulic atomizing nozzle comprises a DC motor (6), an infusion shaft (8), an infusion cross bar (11) and two centrifugal atomizing nozzles. The two nozzles are connected to the transfusion bar (11) through threads, and the cross-recessed pan head screw (13) can connect and fix the infusion bar (11) with one end of the infusion shaft (8), and the liquid passes through the external joint (1), Filter (2), inner joint (3) are communicated with the internal channel of infusion shaft (8), then flow through the internal channel of infusion crossbar (11) and divert to two nozzles to spray. The other end of the infusion shaft (8) is connected to the DC motor (6) through the DC motor coupling (7). Driven by the DC motor (6), the mist droplets do circular motion after atomization to form a mist disk.

Description

Rotary hydraulic atomizing nozzle

technical field

The utility model relates to a rotary hydraulic atomizing nozzle, in particular to a pesticide chemical spraying device applied to light agricultural aircraft. There are two hydraulic atomizing nozzles on each rotary hydraulic atomizing nozzle, which can be rotated under the drive of a DC motor to form a disc spray pattern. the

Background technique

The area of crop diseases, insect pests and weeds is constantly expanding, and the onset is ferocious, showing an explosive and sudden situation. The application of agricultural aviation can timely exterminate these large-scale, explosive pests and diseases. However, due to the relatively high flight speed during the spraying operation of large-scale agricultural aircraft, when the liquid medicine is atomized by hydraulic force to form droplets and then falls to the ground in a free-falling motion, due to the influence of the wind force when the aircraft is flying and the droplets touch the surface of the plant The free fall of the fog actually makes it difficult for the deposition of the droplets on the surface of the target plant to achieve the desired effect. In recent years, some light aircraft, such as small helicopters and unmanned aircraft, have been more and more used in agricultural spraying because of their high flexibility, convenient manipulation, hoverability, and ultra-low-volume spraying. In pest control. However, the existing sprayers for agricultural aircraft are traditional hydraulic nozzles, which are mainly used on some large agricultural aircraft. The fog spectrum is relatively narrow and the flow rate is large, so it is difficult to be suitable for ultra-low-volume spraying on light agricultural aircraft. the

Utility model content

The technical problem to be solved by the utility model is to provide a rotary hydraulic atomizing nozzle applied on a light agricultural aircraft. Large-scale agricultural aircraft spraying increases the deposition of droplets on the surface of target plants, and reduces the drift loss and increases the effective dosage to obtain biological effects. the

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

The rotary hydraulic atomizing nozzle includes two hollow cone nozzles, and the distance between the centers of the two nozzles is 70-80 mm. The two nozzles are installed on the infusion cross bar, and are connected with the infusion cross bar through threads, driven by the DC motor, the two nozzles can rotate together with the infusion cross bar. The nozzle is connected to the pump and the medicine tank of the aircraft through a connector. The liquid from the medicine box enters the nozzle through the connection head, enters the center of the infusion shaft through the filter and the infusion channel, flows to the channel of the infusion bar, and is diverted to two hollow cone nozzles to realize hydraulic atomization. the

The DC motor is 12V, and the DC motor is designed with a supporting body for installing the DC motor, and the DC motor is isolated from the outside world through the DC motor sealing cover, so as to prevent the water mist generated during operation from affecting the DC motor. the

The length of the infusion shaft is 60-70 mm, and there is an infusion channel in the middle, which is made of stainless steel to prevent the corrosion of the chemical liquid. The chemical solution contacts the DC motor, causing adverse effects on the DC motor. The other end of the infusion shaft is connected with the DC motor through a DC motor coupling, and the inner channel of the infusion shaft communicates with the infusion tube installed on the aircraft through an outer joint, a filter and an inner joint. the

The infusion cross bar is connected with the infusion shaft through a cross-recessed pan head screw. An infusion hole is opened inside to communicate with the hole of the infusion shaft, and the two ends are threadedly connected to the hollow cone nozzle. the

The spray angle of the hollow cone nozzle is 70°-110°, the aperture diameter of the nozzle core is 0.5mm-1.5mm in various series, the spray pressure is 0.15-0.3MPa, and the flow rate is 0.5-1.2L/min. the

The advantages and effects that the utility model has are:

1. The rotary hydraulic atomizing nozzle of the utility model is combined with a light agricultural aircraft to form an atomizing disc. Under the action of the downward airflow generated by the rotor of the light aircraft, the droplet adhesion rate can be increased. The updraft generated by the downdraft can make the droplets directly collide with the front and back of the plant leaves, increasing the drug attachment area of the leaves, so that the drift loss of the droplets can be significantly reduced, so as to increase the effective dosage of medicine, save medicine, reduce costs and reduce environmental pollution. purpose of pollution. For different regions, different planting scales and different crops, it has better adaptability. It can realize variable spraying and precise application of pesticides in different regions, and significantly reduce the phenomenon of missed spraying or respraying. the

2. The nozzle core of each nozzle of the rotary hydraulic atomizing nozzle of the utility model can be replaced as required to ensure that it is suitable for different spraying objects. the

3. The two nozzles of the rotary hydraulic atomizing nozzle of the utility model can work at the same time, that is, spray while rotating at the same time; it is also possible to let only one nozzle spray while rotating, while the other nozzle is blocked with a plug; or only Allowing the nozzle to spray without rotating, it can be approximated as a common hydraulic spray to meet the needs of different operations. the

4. The rotary hydraulic atomizing nozzle of the utility model has a small flow rate and a small droplet drift, which can realize low-volume spray and ultra-low-volume spray. the

5. The rotary hydraulic atomizing nozzle of the utility model is installed on both sides of the aircraft, and its DC motor can be connected to the power supply of the aircraft, which can work and stop at the same time to ensure the load balance on both sides of the aircraft. the

Description of drawings

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. the

Fig. 1 is a sectional view of the overall structure of the rotary hydraulic atomizing nozzle of the present invention. the

Fig. 2 is a working schematic diagram of the rotary hydraulic atomizing nozzle of the present invention. the

Fig. 2 is a structural cross-sectional view of the atomizing nozzle of the rotary hydraulic atomizing nozzle of the present invention. the

Among them: outer joint 1; filter 2; inner joint 3; sealing ring 4; DC motor sealing cover 5; DC motor 6; DC motor coupling 7; infusion shaft 8; annular sealing ring 9; DC motor support body 10; Transfusion bar 11; plug 12; cross recessed pan head screw 13; flat gasket 14; hollow cone nozzle 15; nozzle body 16; orifice plate 17; the

Detailed ways

Example 1:

As shown in Figure 1, the rotary hydraulic atomizing nozzle of the utility model includes a DC motor 6, an infusion shaft 8, an infusion bar 11 and two identical nozzles 15, and the two nozzles 15 are connected to the infusion bar 11 through threads , The cross recessed pan head screw 13 can connect and fix the infusion cross bar 11 with one end of the infusion shaft 8 , and the infusion cross bar 11 communicates with the inner channel of the infusion shaft 8 . The other end of the infusion shaft 8 is connected with the DC motor 6 through the DC motor coupling 7, and the inner channel of the infusion shaft 8 is also communicated with the infusion tube installed on the aircraft through the outer joint 1, the filter 2 and the inner joint 3. Like this, the liquid from the aircraft medicine box flows into the inner channel of the infusion shaft 8 through the infusion tube and the filter 2, and then divides into two branches after passing through the inner channel of the infusion cross bar 11 to reach two hollow cone nozzles respectively, and then passes through the hollow cone nozzle 15 Spray from the front outlet. Simultaneously, under the drive of DC motor 6, infusion axis 8, infusion cross bar 11 and two hollow cone nozzles 15 rotate together. The mist sprayed by the two hollow cone nozzles 15 sprays out along with the circular motion of the nozzles while being atomized. the

The distance between the centers of the two nozzles of each rotary hydraulic atomizing nozzle is 70-80 mm. As shown in FIG. 3 , each nozzle is mainly composed of a nozzle body 16 , an orifice sheet 17 , a swirler 18 and a holder 19 . Wherein the nozzle body 16 is used for installing the orifice sheet 17 and the swirler 18 . The fixer 19 is used to support and position the orifice sheet 17 and the swirler 18 . Each orifice sheet 17 is a hollow conical structure, the inner angle of the hollow cone can be between 70° and 110°, the hole diameter can be 0.5mm～1.5mm and other series, and the swirler 18 can provide a The spray pattern of the hollow cone. The liquid is sheared and atomized after passing through the cyclone 18 and the orifice plate 17 to form droplets with a certain particle size. The spray pressure is 0.15~0.3MPa, and the flow rate is 0.5~1.2L/min. the

The DC motor 6 of the rotary hydraulic atomizing nozzle is 12V, and the speed can reach 3000-12000r/min. The DC motor is designed with a support body 10 to support and fix the DC motor, and the DC motor is sealed by the DC motor sealing cover 5. It is isolated from the outside world to prevent the water mist generated during work from affecting the DC motor. The DC motor 6 can drive the infusion shaft 8 to rotate together by driving the DC motor coupling 7 . The infusion shaft 8 has a length of 60-70 mm, is made of anti-corrosion stainless steel, and is sealed with a hydraulic and pneumatic O-shaped rubber sealing ring with the DC motor support body 10. The purpose is to prevent the chemical liquid from contacting the DC motor. cause adverse effects. the

When working, the rotation direction of the rotary hydraulic atomizing nozzle is clockwise as shown in Figure 2, and its linear velocity direction is opposite to the velocity direction of the droplets sprayed along the nozzle. the

Example 2:

In this embodiment as shown in Figure 2, it is also possible to allow only one nozzle to rotate while spraying, while the other nozzle is plugged with a plug 12, so that the mist produced by a single hydraulic atomizing nozzle can be obtained under different DC motor speeds Drip, to meet the needs of the job. Others are with embodiment 1. the

Example 3:

As shown in Figure 3, in this embodiment, only two hydraulic nozzles are allowed to spray, and the DC motor does not work, so that the droplets produced by ordinary hydraulic atomizing nozzles can be obtained to meet the needs of the operation. Others are with embodiment 1. the

Claims (5)

1. rotary fluid power atomizer, it is characterized in that forming by direct current generator (6), transfusion axle (8), transfusion cross bar (11) and two identical nozzles (15), two nozzles (15) are installed on the transfusion cross bar, link to each other with transfusion cross bar (11) by screw thread, Cross Recess Head Screw (13) can be connected transfusion cross bar (11) and be fixing with an end of transfusion axle (8), transfusion cross bar (11) communicates with the duct, inside of transfusion axle (8); The other end of transfusion axle (8) is connected with direct current generator (6) by direct current generator shaft coupling (7), and the duct, inside of transfusion axle (8) communicates with the woven hose of installing aboard by coupling (1), filter (2) and nipple (3).

2. rotary fluid power atomizer according to claim 1 is characterized in that described two nozzles (15) center distance is 70～80 millimeters.

3. rotary fluid power atomizer according to claim 1 is characterized in that described nozzle (15) adopts the hollow cone spray pattern, and the interior angle of hollow cone is 70 °～110 °, and the aperture of spray nozzle sheet (17) can be 0.5mm～1.5mm.

4. rotary fluid power atomizer according to claim 1 is characterized in that described direct current generator (6) is 12V, and rotating speed can reach 3000～12000r/min.

5. rotary fluid power atomizer according to claim 1, it is characterized in that described transfusion axle (8) length is 60～70 millimeters, adopt etch-proof stainless steel material, and and direct current generator supporter (10) between adopt hydropneumatic with the sealing of O shape rubber seal.

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