Oscillation Cylinder Valve Layout for Compact Direction Control
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Solution Overview
Problem
Existing oscillation cylinder arrangements are space-consuming and costly due to the need for impulse valves to be placed between adjustable control discs, leading to a long mechanical structure and high manufacturing costs, while also requiring complex and expensive end covers to accommodate the valves.
Innovation Solution
The oscillation cylinder arrangement integrates impulse valves into the main valve body, with lever arms projecting from the main valve body to control the operational state of the impulse valves, allowing for a more compact design and reduced outer dimensions, and incorporating all flow channels in a single body to minimize seals and joints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If impulse valves are placed between adjustable control discs on the piston rod, then the oscillation cylinder can control the direction of movement, but the mechanical structure becomes long and space-consuming
Solution Approach 1:
The patent relocates the impulse valves from the traditional position between control discs on the piston rod to a different spatial arrangement where they are controlled by lever arms projecting from the main valve body. This dimensional repositioning allows the impulse valves to be actuated by the piston rod's movement through the lever mechanism without requiring the valves themselves to be positioned along the length of the piston rod, thereby reducing the overall structural length while maintaining direction control functionality.
2Ease of operation
If impulse valves are positioned between control discs, then direction control is achieved, but manufacturing costs increase due to complex end covers and multiple components
Solution Approach 1:
The patent integrates the impulse valves and their control mechanism into the main valve body structure. The lever arms that control the impulse valves project directly from the main valve body, eliminating the need for separate end covers and reducing the number of discrete components. This merging of functions into a single integrated body simplifies the manufacturing process, reduces assembly complexity, and lowers overall production costs while maintaining the direction control capability.
3Ease of operation
If control discs are spaced far apart on the piston rod, then impulse valves can be positioned between them, but the oscillation cylinder requires longer stroke length than necessary
Solution Approach 1:
The patent changes the spatial relationship between the piston rod, control discs, and impulse valves by introducing lever arms that project from the main valve body. The control discs remain on the piston rod but can be positioned closer together, while the lever arms transmit the motion to the impulse valves at a different location. This dimensional transformation allows the piston rod to have a shorter stroke length while still achieving proper actuation of the impulse valves for direction control.
Data Source
AI summary
The oscillation cylinder arrangement (100) comprises a working cylinder (10A) and a piston with a rod (27A), arranged to move therein, and a control valve structure (20) for the working cylinder (10A). The control valve structure (20) incorporates a main valve (24) for transmitting a pressure medium to a first sub-chamber or a second sub-chamber of the working cylinder (10A) for a linear movement (A, B) of the piston, as well as impulse valves (22, 23), and lever arms (25, 26) for controlling them, in order to set the operational state of the main valve (24). Control members (27B) fixed to the piston rod (27A) moving in the working cylinder (10A), the control members (27B) being arranged to contact the lever arms (25, 26) of the impulse valves in order to define the extreme positions of the movement of the piston rod (27A).