Adaptive Seed Distribution Device with Collision Sensors
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Solution Overview
Problem
Conventional pneumatic centralized delivery seeders face challenges in achieving uniform seed distribution and consistent seed metering due to variations in seed varieties, sizes, machine vibration, and air pressure, leading to poor seeding quantity control.
Innovation Solution
A multi-crop adaptive seed delivery and uniform seed distribution device featuring a seed storage box, seed metering mechanism, disk-shaped seed distributor with rotating blades, and collision sensors to adjust seed quantity and distribution, ensuring precise control and consistency in seed delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional pneumatic centralized delivery seeder is used, then high delivery efficiency is achieved, but seed metering consistency deteriorates due to variations in seed varieties, sizes, machine vibration, and air pressure
Solution Approach 1:
The patent divides the seed delivery system into multiple independent seed guide tubes (N≥2), each handling a specific seed flow path. This segmentation allows individual control of seed metering for each tube while maintaining high overall delivery efficiency, resolving the contradiction between productivity and precision.
Solution Approach 2:
The patent introduces a blade driving mechanism with adjustable blades that can dynamically adapt to different seed varieties and sizes. The blades rotate to create variable seed guide cavities, enabling real-time adjustment of seed metering parameters to maintain consistency despite variations in seed characteristics and operating conditions.
2Speed
If conventional pneumatic delivery is used, then fast seed delivery is achieved, but seeding quantity control deteriorates due to air pressure variations and machine vibration
Solution Approach 1:
The patent incorporates collision sensors in each fan-shaped area that detect seed collision events and provide feedback signals. This feedback mechanism enables real-time monitoring and adjustment of seeding quantity, maintaining precise control even during high-speed delivery operations with varying air pressure and machine vibration.
Solution Approach 2:
The patent introduces blades as intermediary elements that mediate between the pneumatic delivery system and the seed guide tubes. The blades create controlled seed guide cavities that stabilize seed flow, acting as a buffer between the variable pneumatic delivery and the precise seeding requirement, thus maintaining both speed and control precision.
3Device complexity
If a single seed delivery system is used, then device simplicity is maintained, but adaptability to different crop types deteriorates
Solution Approach 1:
The patent designs a universal seed delivery system with N adjustable blades and N seed guide tubes that can accommodate different seed varieties, sizes, and crop types. The blade driving mechanism provides multi-functional capability to adjust seed guide cavity configurations, enabling the same device structure to serve multiple crop types without requiring complete redesign.
Solution Approach 2:
The patent enables adaptability through parameter changes in the blade positions and seed guide tube configurations. By adjusting blade angles and positions, the system can modify seed guide cavity volumes and shapes to match different seed characteristics, achieving multi-crop adaptability while maintaining a relatively simple base device structure.
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
The device improves seed metering consistency and precisely controls seeding quantity, ensuring uniform seed distribution in rows, accommodating different seed sizes and types while preventing seed damage and dust ingress.
Implementation Method 1
an inlet end on one side of the seed metering box is connected to an electric fan, and an outlet end on an other side of the seed metering box is connected to a delivery tube
Implementation Method 2
an upper end of each blade is connected to an edge of a corresponding fan-shaped area by means of an elastic piece
Implementation Method 3
The seeds inputted in each seed guide cavity hit the collision sensor to generate voltage signals in corresponding quantities and different sizes
Data Source
AI summary
A multi-crop adaptive seed delivery and uniform seed distribution device, including: a seed storage box, a seed metering mechanism, a seed distributor lower housing, a seed distributor upper housing, and a blade driving mechanism. Closed accommodating cavity is formed between the seed distributor upper and lower housing; N seed guide tubes are arranged in circumferential direction, N being positive integer equal to or greater than 2; N blades are rotatably mounted in accommodating cavity; blades are arranged in vertical direction; closed independent seed guide cavity is divided in accommodating cavity by two adjacent blades; upper end of each seed guide tube is connected with corresponding seed guide cavity; top of seed distributor upper housing is divided into N fan-shaped areas in circumferential direction; upper end of each blade is connected to edge of corresponding fan-shaped area by means of elastic piece; and collision sensor is provided in each fan-shaped area.