Antenna Clamping Apparatus Backlash Reduction Design
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Solution Overview
Problem
Existing clamping apparatuses for antennas have limited tilting rotation range and often suffer from mechanical backlash noise during direction adjustments, especially when dealing with heavy antenna devices.
Innovation Solution
A clamping apparatus with a tilting driving unit and a steering driving unit, featuring a backlash reduction design shape with inclined surfaces and trapezoidal cross-sections, which reduces mechanical backlash noise and allows for maximum rotation range in both tilting and steering directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of antennas is increased to expand coverage and increase channel capacity, then data transmission capacity is improved, but device size and weight increase
Solution Approach 1:
The antenna device is divided into multiple independent antenna modules arranged in a layered structure. Each module can be independently manufactured and assembled, allowing the system to achieve high channel capacity through multiple antennas while maintaining manageable individual component weights and sizes.
Solution Approach 2:
Multiple antenna modules are arranged in a compact layered structure where modules are stacked vertically. This nesting arrangement allows multiple antennas to occupy a small spatial volume, increasing data transmission capacity without proportionally increasing the overall device footprint and weight.
2Adaptability or versatility
If the tilting unit rotates the antenna device in the upward/downward direction, then direction adjustment capability is improved, but the rotation range is limited
Solution Approach 1:
The tilting unit employs a dynamic linkage mechanism with multiple degrees of freedom that allows the antenna device to achieve a wide rotation range. The linkage structure dynamically adapts its configuration during rotation, enabling the system to overcome the limited range constraint while maintaining direction adjustment capability.
3Adaptability or versatility
If gear connection parts are used to enable tilting rotation and steering rotation, then direction adjustment functionality is improved, but mechanical backlash noise occurs
Solution Approach 1:
The patent replaces traditional gear connection parts with a linkage mechanism that uses geometric constraints and mechanical advantage to achieve rotation without meshing gears. This substitution eliminates the tooth engagement that causes backlash noise while preserving the direction adjustment functionality through pure rotational motion transmission.
Solution Approach 2:
The linkage mechanism introduces intermediate connection elements between the driving force and the antenna device rotation. These intermediaries (linkage arms and joints) transmit motion smoothly without direct gear meshing, acting as mediators that eliminate the source of mechanical backlash noise while maintaining the required rotational movement.
Data Source
Figure 1A
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Figure 2A
AI summary
The present invention relates to a clamping apparatus for an antenna, the clamping apparatus including fixing bracket parts provided at upper and lower sides of a support pole to mediate installation of an antenna device on the support pole, an antenna installation bracket configured to mediate installation of the antenna device at a front side, a steering driving unit connected to the fixing bracket part and configured to operate to steer and rotate the antenna device, and a tilting driving unit having an upper end hingedly connected to the steering driving unit and a lower end hingedly connected to an upper end of a rear surface of the antenna installation bracket by means of a pair of tilting link members, the tilting driving unit being configured to tilt and rotate the antenna device, in which the clamping apparatus may further include a backlash reduction design shape for reducing the occurrence of mechanical backlash noise caused by an eccentric load of the antenna device, thereby suppressing the occurrence of backlash noise.