Radar Detector Angle Regulation Gear Mechanism
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Solution Overview
Problem
Conventional angle regulation devices for radar detectors have low adjustment resolution and a short service life due to direct screw adjustment and a relatively short life of the angle transducer, requiring frequent repairs.
Innovation Solution
The angle regulation device incorporates a regulating gear, a driving mechanism with a rotating shaft and worm shafts, a transmitting mechanism with reduction gear train, and a powering unit, such as a stepper motor, to enhance adjustment resolution and eliminate backlash, allowing the radar detector to be kept at an optimal angle without the need for an angle transducer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a screw mechanism is used for direct angle adjustment, then the device structure is simple, but the adjustment resolution is low
Solution Approach 1:
A gear transmission mechanism is introduced as an intermediary between the motor and the radar detector mounting bracket. The gear train with multiple stages (first gear, second gear, third gear) provides precise angular adjustment by converting motor rotation into fine angular movements of the bracket, thereby achieving high adjustment resolution while maintaining manageable device complexity through modular gear design.
2Reliability
If an angle transducer is used for positioning, then the adjustment precision can be maintained, but the service life is short and frequent repairs are needed
Solution Approach 1:
The patent replaces the mechanical angle transducer with a motor-driven gear transmission system. The motor (stepper motor or servo motor) provides precise positioning control through electronic feedback and controlled rotation, eliminating the mechanical wear and short service life issues associated with angle transducers while maintaining or improving positioning precision through motor control algorithms and gear ratio optimization.
3Measurement precision
If a gear transmission mechanism is introduced to improve adjustment resolution, then the positioning precision is improved, but the device complexity increases
Solution Approach 1:
The gear transmission mechanism is segmented into multiple independent stages (first gear, second gear, third gear), each with a specific reduction ratio. This segmentation allows the total reduction ratio to be distributed across multiple simpler gear pairs, making the overall system more manageable, easier to manufacture, and simpler to maintain while achieving the required high positioning precision through cumulative reduction.
4Measurement precision
If the gear radius of transmitting gears is made smaller than the regulating gear, then the adjustment resolution is enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent employs pre-manufactured standard gear components with precisely controlled dimensions and tooth profiles. The gear ratios and radii are predetermined in the design phase, allowing for standardized manufacturing processes. This preliminary preparation of gear specifications enables high adjustment resolution to be achieved through carefully selected standard gear sizes rather than requiring custom high-precision machining of each gear component.
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 solution provides higher resolution in adjusting the radar detector's orientation, eliminates backlash, and extends the device's service life by using a stepper motor, reducing the need for frequent repairs and improving overall performance.
Implementation Method 1
The driving mechanism (5) includes a rotating shaft (50), first and second driving members (51, 52) that are mounted co-rotatably to the rotating shaft (50)... Each of the first and second driving members (51, 52) has a driving engaging structure (512, 522)... The powering unit (7) is coupled to the rotating shaft (50) and is operable for rotating the first and second driving members (51, 52) to drive the regulating gear (4) to pivot
Implementation Method 2
The transmitting mechanism (6) is disposed in the casing (1) and includes first and second transmitting units (61, 62). Each of the first and second transmitting units (61, 62) includes a transmitting gear (613, 623) that meshes with the regulating gear (4) and that has a gear radius smaller than that of the regulating gear (4)
Implementation Method 3
The powering unit (7) is coupled to the rotating shaft (50) and is operable for rotating the first and second driving members (51, 52)... such as a stepper motor
Data Source
AI summary
An angle regulation device includes a casing, a regulating gear, a driving mechanism, a transmitting mechanism and a powering unit. The regulating gear is pivoted to the casing and is mounted with a radar detector. The driving mechanism includes co-rotatable rotating shaft, and first and second driving members. The transmitting mechanism includes first and second transmitting units each including a transmitting gear that meshes with the regulating gear and that has a gear radius smaller than that of the regulating gear, and a transmitting engaging structure that meshes with a respective one of the first and second driving members. The powering unit is coupled to the rotating shaft for rotating the radar detector relative to the casing.