Servo Cylinder With Internal Ball-Screw Coupling for Compact Layout
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Solution Overview
Problem
The existing servo cylinder designs with external ball-screw coupling structures result in increased total length and complexity, leading to difficulties in application, especially in industrial automation and robotics, due to interference with peripheral structures and the need for complex support mechanisms.
Innovation Solution
The implementation of an internal ball-screw coupling structure where one end of the ball screw is coupled to a reducer inside the reducer, reducing the total length and simplifying the structure, eliminating the need for external coupling components like thrust and radial support bearings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If an external ball-screw coupling structure is used to connect the ball screw to the reducer, then the connection is achieved, but the total length of the servo cylinder increases
Solution Approach 1:
The ball screw is inserted into the reducer housing, with one end portion of the ball screw coupled to the speed reduction output part inside the reducer. This nesting arrangement allows the ball screw to be housed within the reducer's internal space, eliminating the need for external coupling structures and reducing the overall length of the servo cylinder.
Solution Approach 2:
The coupling structure is merged with the reducer by integrating the ball screw directly into the speed reduction output part inside the reducer. This consolidation eliminates separate external coupling components and their associated support structures, thereby reducing both the total length and structural complexity of the servo cylinder.
2Device complexity
If an external coupling structure is used to connect the ball screw to the reducer, then the connection is achieved, but the structure becomes complex requiring additional support components
Solution Approach 1:
The ball screw is nested within the reducer housing, coupled to the speed reduction output part internally. This eliminates external coupling structures and their associated support components, reducing structural complexity while simultaneously reducing the total length of the servo cylinder.
Solution Approach 2:
The coupling function is merged with the reducer's internal structure by directly coupling the ball screw to the speed reduction output part inside the reducer. This integration eliminates the need for separate external coupling components, simplifying the overall structure and reducing the servo cylinder's total length.
3Adaptability or versatility
If the ball screw is coupled outside the reducer, then the connection is achieved, but interference with peripheral structures occurs
Solution Approach 1:
The ball screw is nested within the reducer housing, coupled to the speed reduction output part internally. This compact arrangement reduces the total length of the servo cylinder, eliminating interference with peripheral structures and improving adaptability for applications with limited space.
4Length of moving object
If an internal ball-screw coupling structure is used, then the total length is reduced, but the reducer internal space must accommodate the ball screw
Solution Approach 1:
The ball screw is nested within the reducer housing, utilizing the reducer's internal space to house the ball screw. This arrangement reduces the total length of the servo cylinder while the reducer's volume accommodates the ball screw, achieving a compact design.
Data Source
AI summary
Provided is a servo cylinder. The servo cylinder includes a reducer comprising a reducer main body connected to a motor and a speed reduction output part provided in the reducer main body, the speed reduction output part outputting power from the motor by reducing a rotation speed and increasing torque; a ball screw coupled to the speed reduction output part inside the reducer when one end portion region of the ball screw is inserted into the reducer, the ball screw performing a rotational motion by the speed reduction output part; and a motion conversion output part connected to the ball screw and converting the rotational motion of the ball screw to a linear motion and outputting a converted motion.