Hoeing Parallelogram Linkage for Stable Depth in Hard Soil

The patent applies the dynamics principle by making the parallelogram deformable and controllable. The upper beam can be raised or lowered relative to the lower beam through controlled deformation of the parallelogram structure, allowing adaptive response to different soil conditions. This dynamic capability enables the hoeing elements to maintain contact with hard soil surfaces while allowing the operator to adjust the working depth as needed.

The patent applies hydraulics by incorporating a double-acting hydraulic cylinder that controls the movement of the upper beam relative to the lower beam. The hydraulic cylinder provides controlled force to raise or lower the upper beam, enabling precise control over the depth of the hoeing elements in the soil. This hydraulic actuation system allows the operator to maintain reliable contact with hard ground while managing the complexity through standardized hydraulic components.

The patent applies dynamics by enabling the upper beam to be dynamically raised or lowered relative to the lower beam. This controlled deformation of the parallelogram structure allows the hoeing elements to be positioned at different heights, providing flexibility to avoid specific areas such as crop rows or sensitive zones. The dynamic capability is achieved through the hydraulic cylinder that powers the relative movement between beams.

The patent applies universality by designing a single hydraulic cylinder and control system that serves multiple functions: controlling the depth of hoeing elements, raising the upper beam to avoid areas, and adapting to different working conditions. This multi-functional approach increases operational flexibility while minimizing the addition of separate control mechanisms for each function.

The patent applies hydraulics by replacing mechanical weighting mechanisms with a hydraulic cylinder that controls the position of the upper beam. The hydraulic system provides controlled force to maintain the upper beam in the desired position, ensuring reliable contact of hoeing elements with the soil without requiring heavy mechanical weights. This approach reduces maintenance requirements as hydraulic systems have fewer moving parts and no wear-prone mechanical connections.

The patent applies parameter changes by using the hydraulic cylinder to dynamically adjust the position and orientation of the upper beam relative to the lower beam. Instead of using fixed mechanical weights, the system changes the positional parameters of the parallelogram components through hydraulic force control. This allows flexible adjustment of hoeing depth and angle while reducing maintenance needs associated with mechanical weighting systems.