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Method and device for mechanization plant frost prevention

A technology for fan blades and gearboxes, which is applied in the fields of botanical equipment and methods, plant protection, gardening, etc., can solve the problem of high frost protection cost and achieve the effect of reducing frost protection cost.

Inactive Publication Date: 2015-06-24
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Chinese utility model with the patent number 201020571460.7 discloses a suction-discharge anti-frost air duct for tea orchards, which prevents frost by sucking and exhausting the cold air at the canopy of the plant to the top of the inversion layer; the Chinese invention with the patent number 200810124434.7, A fan system control method and device for preventing plant frost damage are disclosed; the Chinese utility model patent No. 201120394220.9 discloses a plant frost protection machine, which is driven by an electric motor. The maximum swing angle of the fan is 90°, and the wind force is the highest. The long-distance delivery distance exceeds 30 m, and multiple anti-frost machines are required to be arranged in an approximate matrix to perform anti-frost operations on a certain area of ​​crops, and the cost of anti-frost per unit area is relatively high

Method used

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  • Method and device for mechanization plant frost prevention
  • Method and device for mechanization plant frost prevention

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take tea gardens on mountain slopes as an example.

[0024] The structure and performance parameters of the mechanized plant frost protection device used are as follows: the power input device 1 is a 90 KW variable frequency motor, the model is YVP315M-6, and the protection level is IP55; the transmission ratio of the lower gearbox reducer is 1.64:1; The transmission ratio of the bevel gear of the gearbox is 1:1; the transmission ratio of the worm turbine e is 15:1; the transmission ratio of the worm turbine f is 20:1; The revolution period of the fan blade is 2.5 min, and the rotation axis of the fan blade is 8° down in the horizontal direction; the column 9 is made of equal-diameter cylindrical steel pipe with an outer diameter of 50.8 cm and a wall thickness of 8 cm; the installation height of the fan blade is 12 m; the base 18 is concrete, the column and the base are fixedly connected by bolts, and the top of the base is buried underground to a depth of 1.5 m. The ...

Embodiment 2

[0026] Take tea gardens on flat terrain as an example.

[0027] The structure and performance parameters of the mechanized plant frost protection device used are as follows: the power input device (1) is a 45 KW variable frequency motor, the model is YVP315M-6, and the protection level is IP55; the transmission ratio of the lower gearbox reducer is 2.45:1 The transmission ratio of the bevel gear of the upper gearbox is 1:1; the transmission ratio of the worm turbine e is 12:1; the transmission ratio of the worm turbine f is 15:1; the rotation diameter of the fan blade (17) is 4 m, and the rotating speed is 400 rpm, the revolution period of the fan blades is 4 min, and the rotation axis of the fan blades is inclined downward by 10° along the horizontal direction; the column (9) is made of equal-diameter cylindrical steel pipe with an outer diameter of 50.8 cm and a wall thickness of 8 cm; the installation height of the fan blades The base (18) is concrete, the column and the ba...

Embodiment 3

[0029] Take an apple orchard on flat terrain as an example.

[0030] The structure and performance parameters of the mechanized plant frost protection device used are as follows: the power input device (1) is a 75 KW variable frequency motor, the model is YVP315M-6, and the protection level is IP55; the transmission ratio of the lower gearbox reducer is 1.69:1 The transmission ratio of the bevel gear of the upper gearbox is 1:1; the transmission ratio of the worm turbine e is 16:1; the transmission ratio of the worm turbine f is 20:1; rpm, the revolution period of the fan blade is 3.5 min; the rotation axis of the fan blade is inclined 12° in the horizontal direction; the column (9) is made of equal-diameter cylindrical steel pipe with an outer diameter of 50.8 cm and a wall thickness of 8 cm; the installation height of the fan blade is The base (18) is concrete, and the column and the base are fixedly connected by bolts, and the top of the base is embedded in the ground to a ...

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Abstract

The invention relates to a method and device for mechanization plant frost prevention, and belongs to the technical field of crop frost damage protection. According to the method and device for mechanization plant frost prevention, a bevel gear mechanism, a worm turbine mechanism, a transmission shaft and the like are used for driving fan blades to rotate, warm air above plants is convected to the canopy positions of the plants in a forced mode, and the effect of preventing frost damage is achieved. The device of the method for the mechanization plant frost prevention comprises a power input device, a base, a stand column, a climbing ladder, a lower gear box, the transmission shaft, an upper gear box, a center wheel, a planet wheel and the fan blades. The power input device drives the fan blades to rotate through the lower gear box, the transmission shaft and the upper gear box, wherein the lower gear box and the transmission shaft are arranged inside the stand column, and the upper gear box is arranged on the top of the stand column. Meanwhile, the center wheel and the planet wheel of the upper gear box drive the fan blades to revolute in a reciprocating mode, frost preventing within the 360-degree circumferential range is achieved, and the frost prevention cost in unit area can be lowered. The device for mechanization plant frost prevention has the advantages of being large in frost prevention area, low in cost, and suitable for large scale popularization and application.

Description

technical field [0001] The invention relates to a method and equipment for protecting crops from frost damage, in particular to a fan device capable of preventing frost damage of tea and fruit trees from fallen spring and late frost. Background technique [0002] Early spring, late spring, cold and late frost damage have brought serious losses to agricultural and forestry crop production, especially to tea orchards, causing huge economic losses. Late frost damage often occurs under the condition of temperature inversion in early spring. At this time, tea orchards absorb a large amount of solar radiation during the day and radiate to the sky at night, causing the temperature near the ground to drop rapidly, forming an inversion layer with high air temperature field and low temperature. Therefore, making full use of the distribution characteristics of the inversion temperature field and disturbing the air near the ground inversion layer mechanically (such as fans) to realize t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G13/08
Inventor 胡永光杨朔吴文叶刘萍
Owner JIANGSU UNIV