Plough Roller Actuator for Constant Soil Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing soil working plows with additional rollers require frequent adjustments to maintain constant pressure, especially when dealing with varying plowing depths and uneven terrain, leading to excessive stress on the structure and suboptimal soil consolidation.
Innovation Solution
The implementation of a double-acting jack with a blind space and two chambers of identical volume in the connecting arms of the plow, allowing for constant contact pressure and automatic adaptation to plowing depth and terrain undulations, eliminating the need for user adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the roller's contact pressure is adjusted manually for different plowing depths, then soil consolidation can be optimized for specific conditions, but frequent adjustments are required and user comfort decreases
Solution Approach 1:
The system performs self-adjustment through the hydraulic connection between the plow frame and roller support structure. As the plow depth changes, the hydraulic pressure automatically adjusts the roller contact force without user intervention, making the system serve itself across varying operating conditions.
Solution Approach 2:
The hydraulic system dynamically changes the pressure parameter based on plowing depth. The variable displacement pump adjusts hydraulic flow and pressure according to the plow's position and soil resistance, automatically optimizing roller contact pressure for each operating condition.
2Manufacturing precision
If the roller pressure is increased for deep plowing, then soil consolidation improves, but excessive stress occurs on the plow structure
Solution Approach 1:
The hydraulic system provides continuous feedback between plow depth and roller pressure. The variable displacement pump responds to hydraulic pressure changes caused by plowing resistance, automatically modulating roller contact force to match structural capacity while maintaining consolidation quality.
Solution Approach 2:
The system transitions from static fixed pressure to dynamic adaptive pressure. The hydraulic circuit with variable displacement pump continuously adjusts roller pressure in real-time based on plowing depth and soil conditions, optimizing the balance between consolidation and structural stress.
3Measurement precision
If a complex mechanical device with multiple cylinders is used to control roller pressure, then pressure control precision improves, but device complexity increases
Solution Approach 1:
The invention replaces complex mechanical pressure control with a hydraulic system. The variable displacement pump and hydraulic cylinders provide precise pressure control through fluid power, simplifying the mechanical structure while maintaining or improving control accuracy through hydraulic feedback mechanisms.
Solution Approach 2:
The hydraulic system serves multiple functions simultaneously: it controls plow depth, adjusts roller pressure, and provides structural support. This multi-functionality eliminates the need for separate mechanical devices for each function, reducing overall system complexity while maintaining precision.
4Device complexity
If the roller position is fixed relative to the plow frame, then structural simplicity is maintained, but constant pressure cannot be achieved on uneven terrain
Solution Approach 1:
The roller support structure transitions from a fixed rigid connection to a dynamic hydraulic suspension. The hydraulic cylinders allow the roller to move vertically independently while maintaining controlled contact pressure, adapting to terrain undulations without requiring complex mechanical linkages.
Solution Approach 2:
The hydraulic system automatically compensates for terrain variations through pressure feedback. As the roller encounters uneven ground, the hydraulic pressure self-adjusts to maintain constant contact force, making the system self-regulating without additional mechanical complexity.
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
Ensures consistent soil consolidation and reduced structural stress by maintaining constant pressure on the roller, regardless of plowing depth or terrain, enhancing user comfort and reducing mechanical stress.
Implementation Method 1
said actuator (7) consists of at least one double-acting hydraulic cylinder (8) with a double rod (9, 9')
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a plow (1) comprising at least one additional soil-working device (2), which incorporates a set (3') of roller-forming means (3) and is connected to the longitudinal frame (4) of the plow (1) by two controlled connecting arms (5, 5'), each connecting arm (5, 5') comprising, on the one hand, two mounted articulated branches arranged to form a deformable parallelogram, which is arranged along a vertical plane (PV) in the soil-working position of the plow (1), and, on the other hand, a linear actuator designed and arranged to be able to achieve, by moving the branches, various configurations of the parallelogram, corresponding to various respective positions of the additional soil-working device (2).Plough (1) characterized in that the actuator consists of at least one double-acting double-rod cylinder with a blind space, said or each cylinder comprising two chambers with equivalent working sections, said actuator forming a support cylinder for the roller (3') considered.