Antenna Transmission Linkage for Non-Coaxial Motion Transfer
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Solution Overview
Problem
Existing transmission apparatuses for base station antennas have complex structures and high costs due to their universal joint design, which limits their ability to handle large directional changes in momentum transmission and input/output distance, necessitating a more flexible and cost-effective solution.
Innovation Solution
A transmission apparatus comprising a first rotation member, a cross shaft with pivot mating elements, and a second rotation member, allowing for flexible positioning and momentum transmission with direction changes, adaptable to non-coaxial setups between the motor and phase shifter, with adjustable linkage structures and position-limiting elements for precise movement control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a universal joint structure is used in the transmission apparatus, then the structure can accommodate directional changes in momentum transmission, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The transmission apparatus is divided into multiple independent rotation members (first rotation member, second rotation member) that can rotate independently around different axes. This segmentation allows each component to perform a specific rotational function, replacing the complex universal joint structure with simpler, modular elements that achieve the same directional change capability through sequential rotation.
Solution Approach 2:
The invention introduces multiple rotational dimensions by using rotation members that can rotate around different axes (first rotation axis, second rotation axis). This multi-dimensional approach allows the transmission apparatus to accommodate directional changes in three-dimensional space without requiring a complex universal joint, achieving adaptability through dimensional decomposition.
2Adaptability or versatility
If a universal joint structure is used in the transmission apparatus, then the structure can handle directional changes, but the manufacturing cost increases due to material, mold, and processing requirements
Solution Approach 1:
The invention replaces expensive universal joint components with simpler rotation members that have fewer material and processing requirements. The rotation members can be manufactured using more cost-effective methods and materials, significantly reducing the overall manufacturing cost while maintaining the necessary directional change functionality.
Solution Approach 2:
The invention extracts and eliminates the complex universal joint structure from the transmission apparatus, retaining only the essential rotational functionality through simpler rotation members. This extraction removes the costly material, mold, and processing requirements associated with universal joints while preserving the core adaptability function.
3Ease of manufacture
If the transmission apparatus uses a fixed structure, then the manufacturing cost is reduced, but the ability to accommodate large directional changes and varying input/output distances is limited
Solution Approach 1:
The invention introduces dynamic elements in the form of rotation members that can rotate around different axes, allowing the transmission apparatus to adapt to varying directional requirements and input/output distances. This dynamic capability is achieved through simple rotational joints rather than complex universal joints, maintaining cost-effectiveness while enhancing adaptability.
4Ease of manufacture
If the transmission apparatus is designed with simple structures, then the manufacturing cost is reduced, but the precision and control of momentum transmission deteriorate
Solution Approach 1:
The invention applies local quality by designing rotation members with specific rotational characteristics around different axes. Each rotation member is optimized for its specific rotational function, ensuring precise momentum transmission in the required directions while keeping the overall structure simple and cost-effective.
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
The apparatus enables flexible and precise momentum transmission with direction changes, reducing design complexity and manufacturing costs, and accommodating varying distances between the motor and phase shifter, enhancing antenna performance and installation efficiency.
Implementation Method 1
a pair of first pivot elements; a pair of first pivot mating elements... the pair of first pivot mating elements rotatably cooperating with the pair of first pivot elements
Data Source
AI summary
A transmission apparatus applied to an antenna, includes a first rotation member, a cross shaft, a second rotation member. The first end of the first rotation member is connected to a first linkage structure, and the second end of the first rotation member includes a pair of first pivot elements. The cross shaft includes a pair of first pivot mating elements and a pair of second pivot mating elements. Each first pivot mating element and a neighboring second pivot mating element are formed at an angle. The pair of first pivot mating elements rotatably cooperate with the pair of first pivot elements. The first end of the second rotation member is connected to the second linkage structure. The second end of the second rotation member includes a pair of second pivot elements. The pair of second pivot elements rotatably cooperate with the pair of second pivot mating elements.