Auxiliary Boom Jackscrew Mechanism for Precise Alignment

The patent replaces the traditional manual mechanical alignment method with a laser alignment system. The laser alignment device projects alignment marks onto the auxiliary boom and main boom, enabling precise alignment without manual measurement tools. This substitution of mechanical alignment with optical alignment resolves the contradiction by achieving high precision alignment while maintaining simple operational procedures.

The patent introduces alignment marks as an intermediary element between the laser alignment device and the boom components. These marks serve as visual mediators that facilitate precise alignment by providing clear reference points. The alignment marks bridge the gap between the laser projection system and the physical components, enabling accurate positioning without direct mechanical contact or complex measurement procedures.

The patent combines multiple pin insertion operations into a single coordinated action. The auxiliary boom is designed with multiple connecting pins that can be inserted simultaneously or in a standardized sequence. This merging of multiple discrete pinning operations into a unified mounting procedure reduces the overall complexity while maintaining the reliability benefits of multiple connection points.

The patent employs preliminary alignment through laser marking before pin insertion. By pre-establishing the correct position and orientation of the auxiliary boom using laser alignment marks, the subsequent pin insertion becomes a straightforward task. This preliminary action eliminates the need for complex adjustment and trial-and-error during the pinning operation, reducing mounting complexity while ensuring reliable connection.

The patent implements a telescopic boom structure where smaller boom sections are nested within larger sections. The auxiliary boom can be extended by telescoping out additional sections, similar to nested dolls. This nesting arrangement achieves variable boom length without proportionally increasing overall structural complexity, as the nested sections share common structural elements and connection mechanisms.

The patent designs the boom as a dynamic, adjustable structure rather than a fixed single-piece component. The telescopic sections can be extended or retracted based on operational requirements, allowing the boom length to adapt to different lifting tasks. This dynamic design achieves variable length capability while maintaining relatively simple structure through standardized telescopic mechanisms and hydraulic control systems.