Moisture-absorbing powder spreading device of unmanned helicopter

Abstract

The utility model provides a hygroscopic powder scattering device of an unmanned helicopter, and relates to the field of powder scattering devices for weather modification, the hygroscopic powder scattering device of the unmanned helicopter comprises a hopper, and a plurality of round hole blocks are symmetrically and fixedly installed on one side of the hopper. The moisture absorption powder is injected into the hopper from the feeding port of the hopper and then flows into the cylinder under the action of gravity, then the hopper is fixedly installed on the unmanned helicopter through the cooperation of the round hole block and the bolt, and when the unmanned helicopter flies for sowing, the driving mechanism can be started to drive the auger to rotate in the cylinder, so that the moisture absorption powder can flow into the cylinder. The hygroscopic powder falling into the cylinder is evenly scattered out, the scattering speed is increased, the material and the size of the hopper can be according to actual use requirements, and therefore specific fixed limitation is not made, the amount of carried powder can be increased according to the actual requirements, and the scattering efficiency and the scattering effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of powder spreaders, and in particular to a hygroscopic powder spreader for unmanned helicopters. Background Technology

[0002] A powder spreader is a device used to evenly spread powdery materials. Its main function is to spread powdery materials evenly on the soil surface or other target areas to improve efficiency and ensure uniform distribution of materials.

[0003] Hygroscopic powder spreaders are devices used for artificial fog reduction. They spread hygroscopic particles such as salt, urea, and compound salt powder as catalysts. After spreading, a large number of condensation nuclei are generated. The strong hygroscopicity of the condensation nuclei promotes the evaporation of fog droplets and condenses them into large fog droplets on the nuclei. As the fog droplets continue to grow, they gradually form large water droplets and fall. During the falling process, they will further collide with small fog droplets, further reducing the number of fog droplets and ultimately achieving the purpose of reducing or eliminating fog. Existing powder dispersants fall into two categories: First, those used on manned aircraft, which utilize the pressure difference between the inside and outside of the cabin to disperse hygroscopic powder outside the cabin, are large dispersing devices. These are bulky and heavy, exceeding the payload capacity of existing unmanned helicopters. Second, those used on unmanned aerial vehicles (UAVs) employ two main methods: one is a pressurized gas cylinder system, which uses high-pressure gas cylinders to disperse the hygroscopic powder mixed with gas, using air pressure to spray the powder through nozzles. This method suffers from uneven dispersal speed and powder residue. Furthermore, the weight of the pressurized gas cylinders can reduce the weight capacity of the UAV, decreasing the amount of powder carried and thus reducing dispersal efficiency and effectiveness. The third method is gravity-based self-dispersing devices, which utilize the combined effect of the hygroscopic powder's gravity and the negative pressure generated by high-speed flight to disperse the powder. However, current UAVs have limited payload capacity and slow flight speeds, making it impossible to utilize the powder's gravity and the negative pressure generated by high-altitude flight for effective powder dispersal. Therefore, existing dispersing methods are unsuitable for medium to large-sized helicopters. This application provides a new solution. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing drone pressure cylinder device has problems such as small dosage, uneven dissemination speed and low dissemination efficiency, as well as the problem that the drone gravity self-dissemination device cannot achieve dissemination due to the low flight speed and low negative pressure of the drone helicopter. Therefore, the existing dissemination method is not suitable for medium and large drone helicopters. This application provides another solution.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an unmanned helicopter hygroscopic powder spreader, including a hopper, a number of round hole blocks are symmetrically fixedly installed on one side of the hopper, a cylinder is fixedly installed at the bottom of the hopper at an incline, an auger is installed through the inner wall of the cylinder, and a drive mechanism is provided on one side of the cylinder and one end of the auger.

[0006] The effect achieved by the above components is as follows: When using a large unmanned helicopter to spread hygroscopic powder, the hygroscopic powder is first injected into the hopper through the feed inlet. Then, under the action of gravity, it flows into the inside of the cylinder. The hopper is then fixed to the unmanned helicopter with bolts through a round hole block. When the unmanned helicopter is flying and spreading, the drive mechanism can be activated to drive the auger to rotate in the cylinder, spreading the hygroscopic powder that has fallen into the cylinder evenly, thereby increasing the spreading speed. The material of the hopper can be made of a lightweight material according to actual needs, so there is no fixed limitation. Therefore, the amount of powder carried can be increased, and the spreading efficiency and effect can be improved.

[0007] Preferably, the drive mechanism includes a housing, wherein one side of the housing is fixedly mounted on one side of the cylinder; a reducer, wherein the reducer is disposed in the inner wall of the housing; a motor, wherein one side of the motor is fixedly mounted on one side of the housing, and the output end passes through one side of the housing and is fixedly mounted on the input shaft of the reducer via a coupling; and a transmission shaft, wherein one end of the transmission shaft is fixedly connected to the output end of the reducer, and the other end is fixedly mounted on one end of the auger.

[0008] The effect achieved by the above components is as follows: by setting up a drive mechanism, during dispersal, the motor can be started to drive the input shaft of the reducer to rotate through the coupling. The reducer has a gear set inside to slow down the speed of the motor output shaft, which then drives the transmission shaft to rotate, thereby driving the auger to rotate and conveying the hygroscopic powder falling inside the cylinder, so that it is dispersed from the outlet of the cylinder. It should be noted that the reducer is a mature technology and equipment in the existing technology, and its internal structure, connection method and principle will not be described further.

[0009] Preferably, feed funnels are detachably installed at both ends of the hopper, and the feed inlets of the hopper are inclined and located above the hopper.

[0010] The effect achieved by the above components is that by setting up a feeding funnel, the storage capacity of the hopper and the area of ​​the feeding port can be increased, which facilitates feeding and improves work efficiency.

[0011] Preferably, a reinforcing rib is fixedly installed on one side of the circular hole block, and the reinforcing rib is fixedly installed on the outer surface of the hopper on one side.

[0012] The effect achieved by the above components is that by setting reinforcing ribs, the connection area between the round hole block and the hopper can be increased, making the connection more secure and thus more stable when installed on the unmanned helicopter.

[0013] Preferably, the bottom of the hopper is in the shape of a circular funnel, wherein the bottom angle α of the funnel is 48°, which is greater than the angle of repose of the hygroscopic powder.

[0014] The effect achieved by the above components is as follows: by setting the bottom of the hopper to a circular funnel shape, it can effectively prevent the powder from accumulating or adhering in the hopper, ensuring that the powder flows smoothly and is evenly spread out. The bottom angle α of the funnel is greater than the angle of repose of the powder, which allows the powder to fall smoothly from the inside of the hopper into the auger in the cylinder, and then the rotation of the auger will spread the powder out.

[0015] The beneficial effects of this utility model are:

[0016] When using a small or medium-sized unmanned helicopter to spread hygroscopic powder, the powder is first injected into the hopper through the feed inlet. Under gravity, it flows into the inside of the cylinder. The hopper is then fixed to the unmanned helicopter using bolts and a circular hole block. During the flight of the unmanned helicopter, the drive mechanism can be activated to rotate the auger in the cylinder, evenly spreading the hygroscopic powder that has fallen into the cylinder, thus increasing the spreading speed. The material of the hopper can be made of lightweight materials according to actual needs, so there is no fixed limit. This allows for an increase in the amount of powder carried, improving spreading efficiency and effectiveness. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the hopper of this utility model;

[0020] Figure 3 for Figure 2 A three-dimensional schematic diagram of a local structure;

[0021] Figure 4 This is a three-dimensional structural diagram of the auger part of this utility model.

[0022] Legend: 1. Hopper; 2. Circular hole block; 3. Cylinder; 4. Screwdriver; 5. Drive mechanism; 51. Outer shell; 52. Reducer; 53. Motor; 54. Drive shaft; 6. Feed hopper; 7. Reinforcing rib. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Figures 1-4 The hygroscopic powder spreader shown includes a hopper 1, with several circular hole blocks 2 symmetrically fixed on one side of the hopper 1. A cylinder 3 is fixedly installed at the bottom of the hopper 1 at an incline, and an auger 4 is installed through the inner wall of the cylinder 3. A drive mechanism 5 is provided on one side of the cylinder 3 and one end of the auger 4. When using a small or medium-sized unmanned helicopter to spread hygroscopic powder, the hygroscopic powder is first injected into the hopper 1 through the inlet. Then, under the action of gravity, it flows into the inside of the cylinder 3. The hopper 1 is then fixed to the unmanned helicopter using the circular hole blocks 2 and bolts. When the unmanned helicopter is flying and spreading, the drive mechanism 5 can be activated to drive the auger 4 to rotate in the cylinder 3, spreading the hygroscopic powder that has fallen into the cylinder 3 evenly, thereby increasing the spreading speed. The material of the hopper 1 can be a lightweight material to support it according to actual needs, so there is no fixed limitation. Therefore, the amount of powder carried can be increased, improving spreading efficiency and effect.

[0026] Figures 1-4 The drive mechanism 5 shown includes a housing 51, one side of which is fixedly mounted on one side of the cylinder 3; a reducer 52, which is disposed within the inner wall of the housing 51; a motor 53, one side of which is fixedly mounted on one side of the housing 51, and its output end passes through one side of the housing 51 and is fixedly mounted on the input shaft of the reducer 52 via a coupling; and a transmission shaft, one end of which is fixedly connected to the output end of the reducer 52, and the other end is fixedly mounted on one end of the auger 4. By setting up the drive mechanism 5, during dispersal, the motor 53 can be started to drive the input shaft of the reducer 52 to rotate via the coupling. The reducer 52 has a gear set inside to slow down the rotational speed of the output shaft of the motor 53, which then drives the transmission shaft to rotate, thereby causing the auger 4 to rotate and convey the hygroscopic powder falling inside the cylinder 3, dispersing it from the outlet of the cylinder 3. It should be noted that the reducer 52 is a mature technology and equipment in the prior art; its internal structure, connection method, and principle will not be elaborated further.

[0027] Figures 1-4 The feed hopper 1 shown has detachable feed funnels 6 installed at both ends of the feed inlet. The feed inlets of the feed hopper 1 are inclined and located above the feed hopper 1. By setting up the feed funnels 6, the storage volume of the feed hopper 1 and the area of ​​the feed inlet can be increased, which facilitates feeding and improves work efficiency.

[0028] Figures 1-4 A reinforcing rib 7 is fixedly installed on one side of the circular hole block 2 shown, and the reinforcing rib 7 is fixedly installed on the outer surface of the hopper 1. By setting the reinforcing rib 7, the connection area between the circular hole block 2 and the hopper 1 can be increased, making the connection more secure and thus more stable when installed on the unmanned helicopter.

[0029] Figures 1-4 The bottom of the hopper 1 shown is in the shape of a circular funnel, with a bottom angle α of 48°, which is greater than the angle of repose of the hygroscopic powder. By setting the bottom of the hopper 1 to a circular funnel shape, the powder can be effectively prevented from accumulating or adhering inside the hopper 1, ensuring smooth flow and even distribution of the powder. The bottom angle α of the funnel is greater than the angle of repose of the powder, allowing the powder to fall smoothly from inside the hopper 1 onto the auger 4 in the cylinder 3. Then, the rotation of the auger 4 will distribute the powder.

[0030] Working principle: When using the Zhongda type unmanned helicopter to spread hygroscopic powder, the hygroscopic powder is first injected into the feed inlet of the hopper 1. Then, under the action of gravity, it flows into the inside of the cylinder 3. The hopper 1 is then fixed to the unmanned helicopter through the round hole block 2 and bolts. When the unmanned helicopter is flying and spreading, the motor 53 can be started to drive the input shaft of the reducer 52 to rotate through the coupling. The reducer 52 has a gear set inside, which is used to slow down the speed of the output shaft of the motor 53, and then drive the transmission shaft to rotate, which can drive the auger 4 to rotate in the cylinder 3, so as to spread the hygroscopic powder that falls into the cylinder 3 evenly, thereby increasing the spreading speed. The material of the hopper 1 can be made of a lightweight material according to actual needs, so there is no fixed limit. Therefore, the amount of powder carried can be increased, thereby improving the spreading efficiency and effect.

[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An unmanned helicopter hygroscopic powder spreader, comprising a hopper (1), characterized in that: A number of round hole blocks (2) are symmetrically fixedly installed on one side of the hopper (1), and a cylinder (3) is fixedly installed at the bottom of the hopper (1) in an inclined manner. An auger (4) is installed through the inner wall of the cylinder (3), and a driving mechanism (5) is provided on one side of the cylinder (3) and one end of the auger (4).

2. The unmanned helicopter hygroscopic powder dispenser according to claim 1, characterized in that: The drive mechanism (5) includes a housing (51), wherein one side of the housing (51) is fixedly mounted on one side of the cylinder (3); A speed reducer (52), wherein the speed reducer (52) is disposed in the inner wall of the housing (51); The motor (53) is fixedly mounted on one side of the housing (51), and its output end passes through one side of the housing (51) and is fixedly mounted on the input shaft of the reducer (52) by a coupling. The transmission shaft (54) is fixedly connected at one end to the output end of the reducer (52) and at the other end to one end of the auger (4).

3. The unmanned helicopter hygroscopic powder dispenser according to claim 1, characterized in that: Feeding funnels (6) can be detachably installed at the feed inlets at both ends of the hopper (1), and the feed inlets of the hopper (1) are inclined and set above the hopper (1).

4. The unmanned helicopter hygroscopic powder dispenser according to claim 1, characterized in that: A reinforcing rib (7) is fixedly installed on one side of the circular hole block (2), and one side of the reinforcing rib (7) is fixedly installed on the outer surface of the hopper (1).

5. The unmanned helicopter hygroscopic powder dispenser according to claim 1, characterized in that: The bottom of the hopper (1) is in the shape of a circular funnel, wherein the bottom angle α of the funnel is 48°, which is greater than the angle of repose of the hygroscopic powder.

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