Reversible Plough Hydraulic Blocking Cylinder
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Solution Overview
Problem
Reversible ploughs have complex architectures that are prone to malfunction in aggressive environments, requiring double-action hydraulic cylinders for depth adjustment, which are stressful and not optimal for transportation.
Innovation Solution
A reversible plough design using a single-action hydraulic blocking cylinder with a pressurization chamber connected to the inversion and alignment cylinders via a control valve, allowing the support wheel to be oriented and blocked in both ploughing positions, and adjustable for transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If double-action hydraulic cylinders are used for depth adjustment, then the wheel can be positioned in both advance and return directions, but the system complexity increases and the cylinders are heavily stressed
Solution Approach 1:
The hydraulic control function is segmented between the inversion cylinder (which controls frame rotation and indirectly controls wheel positioning) and a separate single-action blocking cylinder (which provides positioning lock). This segmentation eliminates the need for complex double-action cylinders while maintaining positioning reliability in both advance and return directions.
Solution Approach 2:
A single-action blocking cylinder acts as an intermediary positioning mechanism. It is activated by the inversion cylinder during frame rotation to block the wheel at the correct position, then deactivated to allow wheel adjustment. This intermediary mechanism simplifies the overall hydraulic system while ensuring reliable positioning.
2Reliability
If double-action hydraulic cylinders are used for depth adjustment, then the wheel positioning is controlled in both directions, but the cylinders are subjected to heavy stress and transverse loading
Solution Approach 1:
The positioning function is segmented from the main depth adjustment function. The blocking cylinder only needs to provide positioning lock, not withstand full operational loads. This segmentation reduces the strength requirements for the positioning cylinder rods, eliminating transverse loading issues.
Solution Approach 2:
The blocking cylinder is designed as a lightweight, simple component that provides temporary positioning during inversion. It is not intended to bear continuous heavy loads, only to provide momentary positioning control during the inversion process, reducing material requirements and stress.
3Ease of operation
If the depth adjustment cylinder is connected to the frame, then the wheel can be positioned during inversion, but the cylinder must be disconnected for transportation
Solution Approach 1:
The blocking cylinder is designed with dynamic connectivity - it is connected to the frame during inversion operations to provide positioning control, but can be easily disconnected or rendered inactive during transportation. This dynamic adaptability allows the same component to serve different operational modes without compromise.
Solution Approach 2:
The blocking cylinder is pre-positioned and connected to the frame before inversion begins, allowing it to control wheel positioning throughout the inversion process. For transportation, the system is prepared in advance by disconnecting or deactivating the cylinder, eliminating the need to choose between positioning capability and transportation readiness.
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 solution simplifies the hydraulic system, prevents incorrect wheel positioning, ensures correct alignment, and allows transportation without disconnecting the depth adjustment cylinder, reducing the risk of malfunction and wear.
Implementation Method 1
a hydraulic blocking cylinder (17) which is configured to allow the tilting of the support (12) of the wheel (11) during a rotation of the plough and to block the tilting of the support (12) when the plough takes up a ploughing operating position
Implementation Method 2
an inversion cylinder between the frame and the headstock in order to rotate the frame in relation to the headstock between two ploughing operating positions
Implementation Method 3
an alignment cylinder which, in the initial step of rotation of the frame about the hinging axis, reduces the ploughing extent by moving the frame towards the rotation axis
Implementation Method 4
a support wheel which is mounted on the frame of the plough in order to adjust the working depth of the reversible plough, which wheel can be actuated by means of a hydraulic cylinder
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Reversible plough having a headstock, on which there is hinged a frame which in turn carries at least one pair of opposite ploughing members, having an inversion cylinder between the frame and the headstock in order to rotate the frame in relation to the headstock between two ploughing operating positions from a positioning step at one side of the plough to a repositioning step at the opposite side passing via a dead centre position of the inversion cylinder and having a support wheel which is mounted on the frame of the plough in order to adjust the working depth thereof, the wheel being reversible together with the frame in order to adjust the working depth of the plough in both rotational positions at the opposite sides of the frame of the plough and being able to be blocked in an operating position by means of a hydraulic blocking cylinder.