Gimbal Center of Gravity Adjustment via Threaded Rod
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Solution Overview
Problem
Existing gimbals face difficulties in adjusting the center of gravity due to high static friction between structural members, making it challenging to balance the system effectively.
Innovation Solution
Incorporation of a center of gravity adjusting unit within the gimbal's support frame, utilizing a threaded rod, weight, and anti-slipping blocks to precisely adjust the center of gravity, allowing for improved balance and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If structural members are used to support loads in the gimbal, then the structural strength is improved, but the static friction between structural members increases making relative movement difficult
Solution Approach 1:
The center of gravity adjusting mechanism is segmented into independent components: a movable component that can be independently adjusted along the strut, separate from the load-bearing structural members. This segmentation allows the adjustment function to operate independently without being constrained by the high friction in load-bearing connections.
Solution Approach 2:
A threaded rod serves as an intermediary mechanism between the movable component and the strut. The threaded connection provides a low-friction adjustment path that is decoupled from the high-friction load-bearing structural members, enabling easy center of gravity adjustment while maintaining structural strength.
2Measurement precision
If a small amount of relative displacement is achieved between structural members, then the center of gravity changes significantly, but the high static friction makes such displacement difficult to achieve
Solution Approach 1:
The adjustment mechanism replaces direct mechanical displacement of load-bearing members with a threaded rod system. This substitution converts the adjustment operation into a rotational motion that translates to precise linear displacement, overcoming the high static friction of traditional mechanical connections.
Solution Approach 2:
The threaded rod mechanism changes the parameter of friction by using a threaded connection with lower friction characteristics. The thread geometry transforms the displacement operation into a rotational motion that requires less force to overcome friction, enabling precise center of gravity adjustment.
3Adaptability or versatility
If the center of gravity is adjusted by relative displacement of structural members, then the center of gravity can be changed, but the process is slow and difficult due to high friction
Solution Approach 1:
The movable component is designed to be dynamically adjustable along the strut through the threaded rod mechanism. This dynamic adjustment capability allows the center of gravity to be quickly repositioned as needed, transforming a previously static and difficult-to-adjust system into a flexible and responsive one.
Solution Approach 2:
The threaded rod acts as an intermediary that enables quick adjustment by providing a low-friction pathway for the movable component. This intermediary mechanism decouples the adjustment speed from the friction constraints of load-bearing members, allowing rapid center of gravity repositioning.
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
Enables quick and precise balancing of the gimbal, enhancing the stability of the imaging device during operation by ensuring the center of gravity aligns with the driving shaft, reducing rotational torque and improving shooting stability.
Implementation Method 1
The CG adjusting unit may comprise a threaded rod, a weight through which the threaded rod penetrates and threadably connected with the threaded rod, and a rotating device; when the rotating device rotates the threaded rod, the weight may move along a longitudinal direction of the threaded rod
Implementation Method 2
a sidewall of the weight may be provided with at least one receiving groove; the CG adjusting unit may further comprise at least one anti-slipping block and each of the at least one anti-slipping block may be received in a corresponding one of the at least one receiving groove
Data Source
AI summary
The present invention discloses a gimbal for carrying an imaging device. The gimbal comprises a first support frame, a locking device arranged on the first support frame, and a second support frame hinged with the first support frame and being capable of driving in rotation of the first support frame. The locking device is configured to carry the imaging device. The first support frame comprises two first struts. The gimbal further comprises at least one center of gravity (CG) adjusting unit, the at least one CG adjusting unit being arranged at least within one of the first struts. The at least one CG adjusting unit is configured to adjust the center of gravity of the first support frame. The gimbal of the present invention can adjust the center of gravity of the first support frame through the CG adjusting unit.