Two-Stage Pneumatic Speed Controller With Integrated Cushioning
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Solution Overview
Problem
Existing speed controllers for pneumatic cylinders are complex, costly to install, and require sophisticated calibration, making them difficult to adapt to different models and manufacturers.
Innovation Solution
A two-stage speed controller with a sliding axle assembly and regulation assembly, featuring a primary and secondary throttle channel system that allows for intuitive adjustment of fluid flow and pressure, enabling two-stage speed control and cushioning during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a time delay and flow controller is used to achieve cushioning and internal environment control for pneumatic cylinders, then the desired performance is achieved, but the installation cost increases significantly and the design becomes complicated
Solution Approach 1:
The patent integrates the flow control and cushioning functions directly into the speed controller body by forming throttle channels (first throttle channel 12, second throttle channel 231) and a pressure accumulation chamber (13) within the controller structure. This merging eliminates the need for separate external flow controllers and compensation mechanisms, thereby reducing overall system complexity while maintaining cushioning performance.
Solution Approach 2:
The speed controller is designed to perform multiple functions: speed control through throttle channels and cushioning through the pressure accumulation chamber. The controller can be applied to pneumatic cylinders from different manufacturers and models, providing universal functionality that combines both speed regulation and impact cushioning in a single device.
2Adaptability or versatility
If multiple flow paths are arranged in the interior of the speed controller for sectionized fluid processing, then high and low speed switching is achieved, but the interior structure becomes complicated and the entire size increases significantly
Solution Approach 1:
The patent implements a nested arrangement where the pressure accumulation chamber (13) is positioned within the controller body, and throttle channels are formed within the existing structural components. The sliding axle assembly (20) with its sub-axle (23) and main axle (21) defines channels within the moving component itself, effectively nesting multiple flow paths within the compact controller volume without significantly increasing overall size.
Solution Approach 2:
The patent utilizes three-dimensional spatial arrangement of flow paths, with the primary throttle channel (12) and secondary throttle channel (231) arranged in different orientations and levels within the controller. The balance channel (24) connects these channels through the sliding axle assembly, creating a multi-dimensional fluid processing network that achieves sectionized control without requiring a larger controller volume.
3Reliability
If a flow controller is designed for a specific model of pneumatic cylinder, then the best performance is achieved, but it becomes inapplicable to other models and manufacturers
Solution Approach 1:
The speed controller is designed with universal applicability to pneumatic cylinders from different manufacturers and models. The controller incorporates adjustable throttle channels and a pressure accumulation chamber that can be calibrated for various cylinder specifications. The sliding axle assembly with its regulation mechanism allows adaptation to different flow requirements, making the controller versatile across multiple cylinder types while maintaining optimized performance.
Solution Approach 2:
The controller allows for parameter adjustment through the regulation assembly (30) with rotary regulation knob (32) that modifies the effective opening of throttle channels. This parameter adjustability enables the same controller hardware to be optimized for different pneumatic cylinder models by changing the flow resistance parameters, thereby achieving both universality and performance optimization.
4Reliability
If additional compensation mechanisms and needle valves are added for flow adjustment, then cushioning is achieved, but the installation cost and calibration complexity increase
Solution Approach 1:
The patent combines the cushioning function with the speed control mechanism by integrating the pressure accumulation chamber (13) and throttle channels (12, 231) into the controller body. This eliminates the need for separate external compensation mechanisms and needle valves, thereby reducing installation cost and simplifying calibration to a single integrated system that can be adjusted through the regulation assembly.
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 controller simplifies the structure of existing systems, allows for intuitive adjustment of cushioning and speed, and is applicable to various pneumatic cylinders, reducing installation costs and calibration complexity.
Implementation Method 1
a main axle (21) having an end sequentially penetrating through an elastic element (22) and a sub-axle (23)
Implementation Method 2
the secondary channel (41) allows flowing in a single direction to a pressure accumulation chamber (13)
Implementation Method 3
a primary throttle channel (12) and a secondary throttle channel (231)
Data Source
AI summary
A two-stage speed controller includes a main body including a first port and a second port in communication with each other, and a primary channel and a secondary channel for fluid to flow therethrough. The secondary channel allows flowing in a single direction to a pressure accumulation chamber. A sliding-axle seat is arranged in the second port. An end of a sliding axle assembly forms, together with the sliding-axle seat, a valve. The pressure accumulation chamber is connected with a primary throttle channel. The sliding axle assembly is formed, in a transverse direction, with a secondary throttle channel. During ingress and discharging of the fluid, all the channels and movement of the valve together allow for control of the pressure of the fluid according to a magnitude of a spring force of a regulation assembly in order to control a moving speed of a cylinder connected to the main body.