Scroll Compressor Tensioning Sleeve for Two-Sided Machining
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Solution Overview
Problem
Existing tensioning devices for scroll compressors require complex and time-consuming re-tensioning processes as they are only accessible from one side, necessitating re-processing of the opposite side after initial clamping.
Innovation Solution
A tensioning device with a frame and a tensioning sleeve featuring a continuous opening and recess, allowing access and processing from both sides, utilizing a tensioning unit with evenly distributed force to secure the workpiece without the need for additional grooves or re-tensioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional tensioning devices with solid structure are used, then clamping force is sufficient, but accessibility to both sides of the workpiece is blocked requiring re-tensioning
Solution Approach 1:
The tensioning device is divided into modular components: a frame structure, a tensioning sleeve with continuous opening, and tensioning means. This segmentation allows the workpiece to be accessible from both sides through the continuous opening while maintaining effective clamping force through the distributed tensioning mechanism.
Solution Approach 2:
The tensioning sleeve incorporates a continuous opening that runs through the clamping direction, creating a three-dimensional structure that allows access from both sides simultaneously. This dimensional approach eliminates the need for re-tensioning operations that would otherwise be required with solid tensioning devices.
2Reliability
If tensioning grooves are added to the workpiece for positive fit, then clamping security is improved, but manufacturing complexity and processing steps increase
Solution Approach 1:
Instead of modifying the workpiece by adding tensioning grooves, the invention inverts the approach by providing the continuous opening and tensioning structure in the tensioning device itself. This eliminates the need for additional workpiece features while maintaining secure clamping through the distributed tensioning mechanism.
Solution Approach 2:
The tensioning device's continuous opening structure provides inherent alignment and positioning capabilities without requiring corresponding features on the workpiece. The device serves itself by incorporating all necessary structural elements for secure clamping, eliminating the need for workpiece modifications.
3Productivity
If re-tensioning is performed to process the opposite side, then complete processing is achieved, but processing time and operational complexity increase
Solution Approach 1:
The continuous opening in the tensioning sleeve enables continuous useful action by allowing both sides of the workpiece to be accessed and processed simultaneously without interruption. The tensioning force is maintained throughout the process while both sides remain accessible, eliminating the need for stopping and re-tensioning operations.
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
Facilitates simultaneous processing from both sides of the workpiece, reducing processing steps and simplifying tensioning operations, while maintaining secure clamping without additional features like grooves.
Implementation Method 1
Through this tensioning unit, a force acting on the tensioning section in the direction of the central axis can be built up and distributed uniformly along the circumferential direction with respect to the central axis
Implementation Method 2
the tensioning sleeve lies with the tensioning surface flat against the workpiece and the tensioning section can be transferred from the basic position to at least one tensioning position, the workpiece can be force-fitted or friction-fitted
Data Source
AI summary
A tensioning device for a scroll compressor having at least one frame which has a continuous opening which extends circularly about a central axis and is surrounded by an inner wall of the frame. At least one tensioning sleeve is arranged in the opening of the frame and has a stop section which runs around the central axis and lies flat against the inner wall of the frame with an outer surface. A tensioning section is included which revolves around the central axis and has a continuous recess which extends circularly around the central axis and is surrounded by an inner surface of the tensioning sleeve. At least one tensioning unit which includes at least one tensioning means is arranged between the tensioning sleeve and the frame and by means of which a force can be built up which is uniformly distributed along the circumferential direction.