Self-locking adjustable counterweight balancing arm
By designing a self-locking adjustable counterweight balance arm, and utilizing a worm gear thread and motor reverse drive, the operational hazards and wear problems of fixed and direct-drive motor counterweights are solved, enabling flexible adjustment of the counterweights and improving equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FOURTH BUREAU FOURTH CONSTR ENG
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technologies, the counterweight of a fixed counterweight arm cannot be changed and requires high-altitude lifting for replacement, which is dangerous. When the counterweight block of a motor-driven direct-drive counterweight is moved into place, it impacts the motor due to inertia, which can easily damage traditional braking and limiting devices, resulting in a high failure rate. Furthermore, in the absence of braking, it is prone to inertial offset or slippage, leading to instability of the tower.
It adopts a self-locking adjustable counterweight balance arm. By installing transmission components and worm threads on the balance arm, the opposite threads of the worms driven by the motors on both sides are used to counteract the rotational torque, so as to achieve precise adjustment of the counterweight. Friction is reduced by guide cones and bearing balls, and wear is reduced by lubrication system.
It enables flexible adjustment of the counterweight, reduces mechanical collisions and wear, improves the stability and reliability of the equipment, and reduces the failure rate.
Smart Images
Figure CN224467426U_ABST