Electric Cylinder Assembly With Radial-Float Piston Coupling
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Solution Overview
Problem
During the assembly of electric cylinder devices, if the center position of the cylinder and piston is deviated, it can lead to uneven wear on components due to radial loads, which reduces the accuracy and productivity of the device.
Innovation Solution
The electric cylinder device is designed to allow relative displacement in the radial direction between specific components, such as the piston and the cylinder, which alleviates radial loads and prevents uneven wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high accuracy assembly is required to prevent radial load, then uneven wear is reduced, but manufacturing complexity and productivity are reduced
Solution Approach 1:
The housing is designed with a bearing that allows the rotation input component to rotate relative to the housing, enabling dynamic adjustment to accommodate center position deviations between the piston and cylinder. This dynamic capability eliminates the need for high-precision static assembly, thereby improving productivity while preventing uneven wear.
2Stability of the object's composition
If rigid connection is used between components, then structural stability is improved, but radial load causes uneven wear
Solution Approach 1:
A bearing is introduced as an intermediary component between the rotation input component and the housing. This bearing mediates the interaction by allowing relative rotation while supporting radial loads, thereby maintaining structural stability while preventing uneven wear caused by center position deviations.
3Manufacturing precision
If center position alignment is strictly controlled, then radial load is prevented, but assembly time and complexity increase
Solution Approach 1:
The design changes the parameter of relative motion between components by introducing a bearing that enables rotation. This parameter change allows the system to accommodate center position deviations without requiring strict alignment control, thereby reducing assembly time and complexity while preventing radial load and uneven wear.
Data Source
AI summary
In an electric cylinder device including a third gear that rotates by receiving rotation of an electric motor and a linear motion conversion mechanism that converts the rotation of the third gear into linear motion of a piston inside a cylinder, a nut, which is a linear motion portion of the linear motion conversion mechanism, and the piston are connected in a state in which relative displacement in a radial direction is allowed.