A spraying device for a wheat harvester

Abstract

The utility model relates to a harvesting machine auxiliary dust falling technical field especially, it relates to a kind of spraying device of wheat harvester, including cyclone dust collector, with the spraying tank of cyclone dust collector top gas outlet intercommunication, multiple atomizing nozzles are set in the top of the spraying tank, the liquid collecting hopper is set in the bottom of the spraying tank, and the circulating pump is communicated with the liquid collecting hopper by circulation pipe;In the utility model, the gravity screening principle of cyclone dust collector is utilized, so that the weight of the heavier wheat bran or a small amount of straw is intercepted to the lower cyclone dust collector, and the wheat bran is uniformly discharged under the driving of motor by the conveying auger designed below the cyclone dust collector, so as to avoid the problem that the wheat bran flies;The air containing dust is discharged into the spraying tank through the dust discharge port, and the air containing dust is sprayed and dusted through the circulating spraying structure in the spraying tank, to ensure air quality.

Description

Technical Field

[0001] This utility model relates to the field of dust suppression technology for harvesters, and in particular to a spraying device for a wheat harvester. Background Technology

[0002] During operation, conventional wheat harvesters thresh the wheat, and the straw is chopped and discharged through a special straw discharge device at the rear. The chaff (including husks, broken stalks, and other light impurities) is mainly separated by the cleaning system's fan and screen, and blown out from the discharge port at the rear of the machine. This process generates a mixture of dust, chaff, and straw, which can cause significant dust and particulate matter buildup in certain areas, leading to widespread environmental pollution and a decline in air quality, resulting in substandard air quality monitoring. Furthermore, the dust emissions can impair the driver's visibility and health. Utility Model Content

[0003] The purpose of this invention is to provide a spraying device for a wheat harvester, which solves the problem that dust emissions from conventional wheat harvesters can affect air quality.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model provides a spraying device for a wheat harvester, including a cyclone dust collector, a spray box connected to the top air outlet of the cyclone dust collector, a plurality of atomizing nozzles disposed at the top of the spray box, a liquid collection hopper disposed at the bottom of the spray box, and a circulation pump connected to the liquid collection hopper through a circulation pipe. The outlet of the circulating pump is connected to the atomizing nozzle via a conduit; An inclined screen is provided inside the spray box and directly above the liquid collection hopper; The bottom of the cyclone dust collector is equipped with a conveying auger for easy material discharge, and the conveying auger is driven to rotate by an auger drive motor.

[0005] In this embodiment, the bottom sidewall of the cyclone dust collector, located outside the conveying auger, is provided with a wheat bran outlet.

[0006] Furthermore in this embodiment, the cyclone dust collector is connected to the discharge port of the wheat harvester through a feed pipe, and a fan is installed on the feed pipe.

[0007] Furthermore in this embodiment, the top of the cyclone dust collector is connected to the spray box through a dust discharge port, wherein an exhaust port is provided on the other side wall of the spray box.

[0008] Furthermore, in this embodiment, a cleaning door facing the inclined screen is provided on the side wall of the spray box. A reserved window is provided on the side wall of the spray box. The lower end of the cleaning door is hinged to the bottom of the reserved window by a folding hinge. A connecting buckle is also provided on the top of the cleaning door and locked to the top of the reserved window.

[0009] Furthermore, in this embodiment, a flow valve is provided on the circulation pipe.

[0010] Furthermore in this embodiment, the lower part of the cyclone dust collector is a conical tube structure, and the conveying auger is a variable diameter conveying auger that fits properly against the inner wall of the conical tube structure.

[0011] Compared with the prior art, the beneficial technical effects of this utility model are as follows: This invention utilizes the gravity screening principle of a cyclone dust collector to intercept and settle relatively heavy wheat chaff or a small amount of straw, which is then evenly discharged through a conveying auger at the bottom, effectively preventing the wheat chaff from flying directly. Secondly, the air containing finer dust after preliminary separation is introduced into a spray box, where a deep dust suppression is achieved through an internal circulating spray system, significantly improving the quality of the exhaust air. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the main structure of the spraying device of the wheat harvester of this utility model; Figure 2 This is a schematic diagram of the internal cross-section of the spraying device of the wheat harvester of this utility model; Figure 3 This is a schematic diagram of the internal structure of the spray box of the spraying device of the wheat harvester of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Cyclone dust collector; 11. Feed pipe; 12. Wheat bran outlet; 13. Dust outlet; 2. Screwdriver drive motor; 21. Conveying screw; 3. Spray box; 31. Cleaning door; 311. Folding hinge; 312. Connecting buckle; 32. Exhaust vent; 33. Water collection port; 4. Circulation pipe; 5. Circulation pump; 51. Flow valve; 6. Atomizing nozzle; 7. Inclined screen. Detailed Implementation

[0015] refer to Figure 1This embodiment discloses a spraying device for a wheat harvester, including a cyclone dust collector 1, a spray box 3 connected to the top air outlet of the cyclone dust collector 1, a plurality of atomizing nozzles 6 installed at the top of the spray box 3, a liquid collection hopper installed at the bottom of the spray box 3, and a circulation pump 5 connected to the liquid collection hopper through a circulation pipe 4; wherein the liquid outlet of the circulation pump 5 is connected to the atomizing nozzles 6 through a conduit; wherein an inclined screen 7 is installed in the spray box 3 and directly above the liquid collection hopper; wherein a conveying auger 21 for easy discharge is installed at the bottom of the cyclone dust collector 1, and the conveying auger 21 is driven to rotate by an auger drive motor 2.

[0016] When a wheat harvester harvests wheat, it discharges straw and chaff from different locations. Wheat chaff has a small particle size and easily attracts dust. Conventional wheat harvesters directly blow the chaff and dust out of the wheat field, causing a large amount of dust and chaff to fly in the wheat field.

[0017] In this embodiment, during use, the air inlet of the cyclone dust collector 1 can be connected to the wheat chaff outlet of the wheat harvester. Utilizing the gravity screening principle of the cyclone dust collector 1, heavier wheat chaff or a small amount of straw is intercepted below the cyclone dust collector 1. The air containing dust is discharged into the spray box 3 through the dust outlet 13. During this process, the wheat chaff is evenly discharged by the conveying auger 21 designed below the cyclone dust collector 1 under the drive of the motor. In addition, the air containing dust is sprayed to reduce dust through the circulating spray structure in the spray box 3.

[0018] refer to Figure 1 and Figure 2 The bottom side wall of the cyclone dust collector 1, located outside the conveying auger 21, is provided with a wheat bran outlet 12 for discharging material. The lower part of the cyclone dust collector 1 is a conical tube structure, and the conveying auger 21 is a variable diameter conveying auger that fits the inner wall of the conical tube structure, so as to achieve uniform discharge of wheat bran and prevent it from scattering and flying.

[0019] In specific implementation, the cyclone dust collector 1 is connected to the wheat harvester's waste discharge port through the feed pipe 11, and a fan is installed on the feed pipe 11 to increase the air pressure entering the cyclone dust collector 1.

[0020] In this embodiment, the top of the cyclone dust collector 1 is connected to the spray box 3 through the dust discharge port 13, and an exhaust port 32 is provided on the other side wall of the spray box 3 for the circulation of clean air.

[0021] refer to Figure 1In this embodiment, a cleaning door 31 facing the inclined screen 7 is installed on the side wall of the spray box 3. A reserved window is provided on the side wall of the spray box 3. The lower end of the cleaning door 31 is hinged to the bottom of the reserved window by a folding hinge 311. A connecting buckle 312 is also installed on the top of the cleaning door 31 and locked to the top of the reserved window. The impurities intercepted by the inclined screen 7 can be removed in time by opening the cleaning door 31.

[0022] In this embodiment, a flow valve 51 is installed on the circulation pipe 4 to facilitate adjustment of the water supply flow according to demand; the atomizing nozzle 6 is a large-diameter nozzle to avoid clogging; and the inclined screen 7 also has a filtration function.

[0023] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A spraying device for a wheat harvester, characterized in that: Includes a cyclone dust collector (1), a spray box (3) connected to the top outlet of the cyclone dust collector (1), multiple atomizing nozzles (6) set at the top of the spray box (3), a liquid collection hopper set at the bottom of the spray box (3), and a circulation pump (5) connected to the liquid collection hopper through a circulation pipe (4). The outlet end of the circulating pump (5) is connected to the atomizing nozzle (6) via a conduit; An inclined screen (7) is provided inside the spray box (3) and directly above the liquid collection hopper. The bottom of the cyclone dust collector (1) is provided with a conveying auger (21) for easy material discharge, and the conveying auger (21) is driven to rotate by the auger drive motor (2).

2. The shower device of a wheat harvester according to claim 1, characterized in that: The bottom side wall of the cyclone dust collector (1) and the outside of the conveying auger (21) is provided with a wheat bran outlet (12).

3. The shower device of a wheat harvester according to claim 1, characterized in that: The cyclone dust collector (1) is connected to the wheat harvester's waste discharge port through the feed pipe (11), and a fan is installed on the feed pipe (11).

4. The shower device of a wheat harvester according to claim 1, characterized in that: The top of the cyclone dust collector (1) is connected to the spray box (3) through a dust discharge port (13), wherein an exhaust port (32) is provided on the other side wall of the spray box (3).

5. The shower device of a wheat harvester according to claim 1, characterized in that: A cleaning door (31) facing the inclined screen (7) is provided on the side wall of the spray box (3). A reserved window is provided on the side wall of the spray box (3). The lower end of the cleaning door (31) is hinged to the bottom of the reserved window by a folding hinge (311). A connecting buckle (312) is also provided on the top of the cleaning door (31) and locked to the top of the reserved window.

6. The shower device of a wheat harvester according to claim 1, characterized in that: A flow valve (51) is provided on the circulation pipe (4).

7. The shower device of a wheat harvester according to claim 1, characterized in that: The lower part of the cyclone dust collector (1) is a conical tube structure, and the conveying auger (21) is a variable diameter conveying auger that fits the inner wall of the conical tube structure.

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