Acoustic Testing Apparatus Rotary Door Linear Displacement
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Solution Overview
Problem
Conventional audio module testers require manual operation for loading and unloading objects, leading to idle time for operators and inefficient use of testing equipment during audio testing processes.
Innovation Solution
An acoustic testing apparatus incorporating a rotary mechanism and linear displacement mechanism, allowing for simultaneous loading and unloading of objects during testing, with a soundproof box body and damping mechanisms to enhance test accuracy and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operation is used for loading and unloading objects, then the structure is simple, but the test efficiency is low and operator idle time increases
Solution Approach 1:
The door assembly is designed with dynamic movement capabilities through the rotary mechanism (enabling the door body to rotate between horizontal and vertical positions) and linear displacement mechanism (enabling the door frame to move linearly). This dynamic design allows automatic loading and unloading operations, eliminating manual intervention and improving test efficiency while accepting increased structural complexity.
Solution Approach 2:
The apparatus performs self-service through automated door operations. The door frame and door body automatically open, rotate, and close to facilitate loading and unloading of test objects without requiring manual operation, thereby reducing operator idle time and improving productivity.
2Object-affected harmful factors
If the door body is made thick for soundproofing, then the soundproofing effect is improved, but the weight and inertia increase
Solution Approach 1:
The door body employs a composite structure consisting of multiple material layers including a dense plate layer, glass fiber layer, and cotton layer. This composite material approach achieves effective soundproofing by combining materials with different acoustic properties, reducing the need for excessive thickness while maintaining sound isolation performance and thereby reducing weight and inertia.
Solution Approach 2:
The door assembly utilizes rotational movement to change its orientation from horizontal to vertical position. This dimensional change allows the door to effectively block sound paths in different orientations, achieving soundproofing through spatial arrangement rather than solely relying on increased thickness.
3Speed
If the door body rotates to horizontal position, then the linear displacement mechanism needs to bear larger force, but the opening speed increases
Solution Approach 1:
The rotary mechanism is designed to rotate the door body to the horizontal position before the linear displacement mechanism operates to open the door. This preliminary positioning action ensures that the door is in the optimal orientation for linear displacement, reducing the force required by the linear displacement mechanism while maintaining efficient opening speed.
Data Source
AI summary
An acoustic testing apparatus includes a box body, a machine frame, a door frame, a door body, a rotary mechanism and linear displacement mechanisms. The box body has a feed-discharge port. The machine frame has a first opening and a second opening opposite to each other, and is disposed on the box body. The first opening communicates with the feed-discharge port. The door frame is disposed on the machine frame. The door body is disposed on the door frame. The rotary mechanism is disposed on the door frame and is connected to the door body to drive the door body to rotate. The linear displacement mechanisms are disposed on the machine frame and are connected to the door frame to drive the door frame to displace between the first opening and the second opening linearly, thus delivering an object to come in and out of the box body.


