Inclined Control Valve Layout for Rotary Working Machine
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Solution Overview
Problem
In rotary working machines, the horizontal arrangement of the control valve on the rotating table frame results in narrow spaces, a complex link mechanism, and increased costs due to the long distance between the control valve and operation lever or pedal.
Innovation Solution
The control valve is placed inclined, with the upper end at the front and lower end at the rear, allowing for a wider space on the rotating table frame, reducing the distance between the control valve and operation components, and enabling a simpler link mechanism, while a reservoir tank is positioned on the rear side to enhance capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the control valve is arranged horizontally on the rotating table frame, then the control valve can be easily installed, but the space at the front and back of the control valve becomes narrow and cannot be effectively used
Solution Approach 1:
The control valve is changed from a horizontal arrangement to an inclined arrangement, utilizing the vertical dimension and the slope of the rotating table frame surface. This dimensional change allows the front and back sides of the control valve to have sufficient space for effective utilization while maintaining installation feasibility through the inclined mounting structure.
2Device complexity
If the control valve is arranged horizontally on the rotating table frame, then the control valve structure is simple, but the distance between the control valve and the operation lever or operation pedal becomes long
Solution Approach 1:
By arranging the control valve on the inclined surface with the front end higher than the rear end, the vertical position of the control valve is optimized to reduce the vertical distance to the operation lever and operation pedal on the step, thereby shortening the overall connection distance without complicating the valve structure.
Solution Approach 2:
The control valve is positioned asymmetrically on the inclined surface rather than centrally or horizontally, with specific consideration given to its forward and backward positions. This asymmetric arrangement optimizes the distance to the operation components while maintaining structural simplicity.
3Area of stationary object
If the control valve is arranged horizontally on the rotating table frame, then the space utilization is limited, but external take-out components cannot be arranged in the space
Solution Approach 1:
By arranging the control valve on the inclined surface with the front end higher than the rear end, sufficient space is created on the front side of the control valve that can be effectively utilized for arranging external take-out components such as breakers, thereby improving both space utilization and adaptability for additional components.
Data Source
AI summary
Ample spaces are secured on a rotating table frame, in front of and behind a control valve. A rotary working machine where a step is placed on a rotating table frame, at the front of the frame, and a control valve is placed below the step. The step has operation levers and pedals mounted on it. The control valve is connected to the operation levers and the pedals to perform drive control of a hydraulic actuator, and is placed at an incline so as to be high at the front and low at the rear.