Belt Cutting Unit Hydraulic System Simplification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing belt cutting units have complex hydraulic systems that complicate operation and maintenance, particularly in adapting to different working conditions and ground unevenness.
Innovation Solution
A belt cutting unit with a simplified hydraulic system using double-acting hydraulic cylinders connected to a 3/2-way valve or two 2/2-way valves, which allows for single-acting or double-acting operation, combined with a pressure accumulator and throttle check valve to stabilize pressure and cushion shocks, and a control device for automated adjustments based on sensor inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple hydraulic circuits are used for support wheel control, then adaptability to different working conditions is improved, but device complexity increases
Solution Approach 1:
A single hydraulic circuit is designed to perform multiple functions by using a double-acting hydraulic cylinder that can operate in different modes. The circuit can provide both lifting function (raising support wheels) and damping function (absorbing shocks and adapting to ground unevenness) through the same hydraulic components, eliminating the need for separate hydraulic circuits for different operations.
Solution Approach 2:
The hydraulic system uses a dynamically controllable valve that can switch between different flow paths and resistance characteristics. By adjusting the valve position, the system can transition between providing full damping resistance for shock absorption and providing free movement for lifting operations, allowing one circuit to adapt to multiple working conditions dynamically.
2Adaptability or versatility
If double-acting hydraulic cylinders are used for support wheel control, then adaptability to different working conditions is improved, but device complexity increases
Solution Approach 1:
The double-acting hydraulic cylinder is integrated into a single hydraulic circuit that provides both lifting and damping functions. The same cylinder that can raise and lower support wheels also serves as a shock absorber when the valve is positioned to provide resistance during compression movements, eliminating the need for separate single-acting cylinders or additional damping mechanisms.
Solution Approach 2:
The lifting function and damping function are merged into a single hydraulic circuit with a double-acting cylinder. The circuit design allows the same hydraulic fluid path to serve both purposes by controlling valve position, combining what would traditionally require separate systems into one integrated solution.
3Reliability
If pressure accumulators and throttle check valves are added, then shock absorption is improved, but device complexity increases
Solution Approach 1:
The hydraulic system uses the inherent compressibility of the hydraulic fluid itself as the damping medium. When the support wheel compresses the cylinder during shock absorption, the fluid is compressed and then expands to cushion the rebound, eliminating the need for external spring-damper elements or separate shock absorption mechanisms.
Solution Approach 2:
The hydraulic fluid's compressibility is utilized as a spring-damper element to absorb shocks and cushion unevenness. The fluid's elastic properties provide natural damping without requiring mechanical springs or external dampers, using the hydraulic system's own characteristics for shock absorption.
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, allowing for efficient operation on uneven terrain, automatic adjustments for support wheel positioning, and enhanced shock absorption, improving operational stability and ease of use.
Implementation Method 1
a pressure accumulator stabilizes the pressure during ongoing operation of the belt cutting unit
Implementation Method 2
hydraulic fluid to be pumped or sucked back and forth in a tank-side hydraulic line due to compression movements
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a belt cutter (1) comprising a central section (3) and at least two side sections (4), wherein at least one support wheel (16) is arranged at least on the outer side sections (1), which is guided vertically by a double-acting hydraulic cylinder (19) connected to a hydraulic circuit of a hydraulic system (20), wherein a 3/2-way valve (29) is assigned to each hydraulic cylinder (19), which assumes a switching state in the operation of the belt cutter (1) in which the piston rod chamber (30) and piston chamber (31) of the hydraulic cylinder (19) are fluidly connected.