48-Volt Agricultural Sprayer With Independent Air and Liquid Flow Control
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Solution Overview
Problem
Existing agricultural sprayer machines suffer from mechanical transmissions that are bulky, inefficient, costly, and lack precise control over airflow rate, chemical flow rate, and direction, leading to inefficiencies and environmental waste.
Innovation Solution
The sprayer machine employs electric motors and independent control systems for blowers and nebulizer nozzles, eliminating mechanical transmission and enabling precise control over airflow, chemical flow, and direction, with an electronic control unit coordinating operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a mechanical transmission system is used to connect the sprayer machine to the tractor, then the machine can be powered by the tractor's power take-off, but the transmission system becomes bulky, heavy, and inefficient
Solution Approach 1:
The patent replaces the mechanical transmission system with an electrical power transmission system. Electric motors are mounted directly on the sprayer machine and powered through electrical connections from the tractor, eliminating the need for mechanical universal joints, shafts, and gear reducers. This substitution dramatically reduces the weight and complexity of the power transmission system while improving efficiency.
2Ease of operation
If a mechanical transmission system is used, then the sprayer machine can be operated, but the control over airflow rate, chemical flow rate, and direction is insufficiently precise
Solution Approach 1:
The patent implements dynamic control capabilities by equipping each blower with an independently controllable electric motor and each nozzle with independently controllable electric actuators. This allows real-time adjustment of airflow rates, chemical flow rates, and spray directions based on operational requirements, achieving precise control that mechanical systems cannot provide.
Solution Approach 2:
The patent replaces the inadequate mechanical control system with an electrical control system. Electric motors and actuators provide precise, programmable control over all operational parameters, eliminating the limitations of mechanical linkages and enabling independent adjustment of each blower and nozzle.
3Productivity
If a mechanical transmission system is used, then the sprayer machine can function, but fuel consumption increases and chemical product is wasted
Solution Approach 1:
The patent enables dynamic optimization of spraying operations through independent control of each blower and nozzle. The system can adjust airflow rates and chemical application rates in real-time to match actual crop needs, eliminating waste and improving productivity. Variable speed electric motors allow the system to operate at optimal efficiency levels rather than being locked into fixed mechanical ratios.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution achieves precise spraying control, reduces weight and energy consumption, saves fuel and chemical product, and optimizes application to specific crop areas, enhancing efficiency and environmental sustainability.
Implementation Method 1
a plurality of blowers (2), each driven by a respective electric motor (20)
Implementation Method 2
each blower (2) comprises an impeller (22), configured to produce an airflow
Implementation Method 3
each nebuliser nozzle (3) being equipped with a control solenoid valve (30), adapted to control the delivery of product
Implementation Method 4
At the outlet end of the tubular casing (23), a diffuser (24) can be positioned, to improve the distribution of the outflow
Data Source
Figure 1
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AI summary
A 48-volt electric sprayer machine for agriculture, comprising: a plurality of blowers (2), each driven by a respective electric motor (20) and configured to produce an airflow; a plurality of nebuliser nozzles (3), each of which is positioned in such a way as to deliver a nebulised product in the airflow produced by the blowers (2); an electric pump (4), connected to the nebuliser nozzles (3) and adapted to supply a flow of product to the nebulisers (3); each blower (2) is equipped with an electronic controller (21), connected to the electric motor (20) and configured to control the actuation of the electric motor (20); each nebuliser nozzle (3) is equipped with a control solenoid valve (30), adapted to control the delivery of product; the pump (4) is driven by an electric motor (40), equipped with an electronic controller (41); the controllers (21) of the blowers (2), the control solenoid valves (30) and the controller (41) of the pump (4) are arranged to be connected with digital transmission to an electronic control unit (C), configured to control the independent actuation of each thereof, as a function of the conditions of use of the sprayer machine.