Rotary Drive Functional Module Axial Mounting
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Solution Overview
Problem
Existing rotary drives face challenges in achieving a compact and practical design, particularly when integrated with valve fittings, as they often require additional installation space and complex fastening systems, which can limit their use in space-constrained applications.
Innovation Solution
The design extends the housing of the rotary drive in the axial direction by attaching a functional module arrangement to the end face, which includes an electronic and/or control valve arrangement, using existing fastening sections to secure it, thereby increasing installation space without increasing overall height or width, and ensuring a pressure-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If functional modules are attached laterally to the housing, then the rotary drive can accommodate additional components, but the overall width and height increase, reducing compactness
Solution Approach 1:
The patent transitions from lateral attachment of functional modules to axial attachment at the end face of the housing. This dimensional change allows functional modules to be arranged in the axial direction rather than increasing the lateral footprint, thereby maintaining compactness while accommodating additional components.
2Reliability
If additional fastening sections are provided for attaching functional modules, then secure attachment is achieved, but the housing becomes more complex and requires additional cleaning considerations
Solution Approach 1:
The housing cover is designed with fastening sections that serve dual purposes: securing the housing cover itself and attaching functional modules to the end face. This multi-functionality eliminates the need for separate fastening structures, reducing housing complexity while maintaining secure attachment capabilities.
3Ease of operation
If the housing is extended axially to accommodate functional modules, then installation space is optimized for vertical mounting, but the piston chamber volume increases
Solution Approach 1:
The functional modules are designed to attach to the end face within the existing housing envelope, with the piston chamber extending into the functional module arrangement. This nesting approach allows the piston chamber to utilize space within the functional module volume rather than requiring additional external space, optimizing installation convenience without proportionally increasing overall volume.
Data Source
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AI summary
The invention relates to a fluid-actuated rotary drive (10, 20) comprising a housing (1) which is designed as a tubular body and which has a piston chamber (11) extending in an axial direction (26) of the housing. A drive piston arrangement (19) for driving a rotatably mounted output shaft (6) is movably guided in the piston chamber. The housing has an end face (3) at an axial end (2), said end face being open towards the piston chamber and comprising at least one securing portion (5) that is suitable for attaching a housing cover. The rotary drive also comprises a functional module arrangement (7) which comprises an electronic arrangement for monitoring, controlling, and/or regulating the rotary drive and/or a control valve arrangement for actuating the rotary drive. The invention is characterized in that the functional module arrangement is placed on the end face and is secured by means of the at least one securing portion.