Seed Sowing Drum Body Automatic Positioning via Compression Spring
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Solution Overview
Problem
Existing precision sowing devices require precise adjustment of the interrupter body during assembly, increasing effort and necessitating readjustment, while also compromising functional reliability.
Innovation Solution
A precision sowing device with a rotatable drum and a body that is pressed against the lateral surface by a compression spring, allowing for automatic positioning and improved force transmission, eliminating the need for precise adjustment and enhancing operational reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the body position is precisely adjusted during assembly, then the sealing function is improved, but the assembly effort increases
Solution Approach 1:
The compression spring enables the body to automatically adjust and position itself against the lateral surface during assembly, eliminating the need for manual precise positioning. The elastic force self-regulates the contact pressure and alignment, making the assembly process simpler while maintaining reliable sealing function.
Solution Approach 2:
The compression spring introduces an elastic parameter that allows dynamic adjustment of the body position and contact force. This elastic element transforms rigid positioning requirements into flexible self-adjusting contact, resolving the contradiction between precise positioning and ease of assembly.
2Reliability
If the body is pressed against the lateral surface with optimal force, then the rolling performance is improved, but the device complexity increases
Solution Approach 1:
The compression spring directly transmits elastic force to press the body against the lateral surface, achieving optimal rolling performance through a simple elastic-mechanical action. This approach bypasses complex adjustment mechanisms while maintaining reliable force transmission for proper body rolling.
3Adaptability or versatility
If the body can move against the compression spring, then the adaptability to foreign bodies is improved, but the positioning stability deteriorates
Solution Approach 1:
The compression spring creates a dynamic positioning system where the body can move elastically in response to foreign bodies while maintaining stable average positioning. The spring force provides continuous stabilization, allowing temporary displacement for adaptability while ensuring return to optimal position, thus maintaining both adaptability and stability.
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
Simplifies assembly, ensures optimal positioning of the body, and improves functional reliability by allowing the device to adapt automatically, reducing the risk of leaks from dirt or broken grains, and preventing undesired displacement.
Implementation Method 1
a compression spring, the compression spring pressing the body against the lateral surface, the compression spring pressing the body against the lateral surface in a radial direction in relation to the axis of rotation of the drum
Implementation Method 2
an improved rolling of the body on the lateral surface can be achieved through the optimal transmission of force
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
Device for singling out seeds, comprising the following features: a drum (10) rotatable about an axis of rotation (22), a cavity (18) formed in the drum (10), an end face of the cavity (18) being bounded by a seed disc (14) in which several seed holes (26) are arranged at intervals on an imaginary circular path (24), a body is arranged in the cavity (18) which is rotatable about an axis (32) arranged at a distance and parallel to the axis of rotation (22), with a part (34s) of its surface bearing against the seed disc (14) in such a way that, when the seed disc (14) is rotating, it temporarily seals each passing seed hole (26) on the inside, wherein the body (34) is rollable on an outer surface (12) encompassing the cavity (18), a compression spring (51) wherein the compression spring (51) presses the body (34) against the The lateral surface (12) presses.