Pivot Housing

The Pivot Housing is a critical component of the Boom Base Section. It provides a secure enclosure and mounting structure for the pivot mechanism, enabling rotational movement while maintaining structural integrity and alignment. The housing is designed to accommodate bearing surfaces and mounting points that allow controlled rotation of connected components, distributing loads and preventing misalignment. This component is typically manufactured from cast steel, with a specified material grade of QT400-18 per GB/T 1348, offering minimum tensile strength of 400 MPa, yield strength of 250 MPa, and elongation of 18%. The Brinell hardness ranges from 130 to 180 HBW. The housing is suitable for outdoor machinery, with an operating temperature range of -40°C to 85°C. Dimensional tolerances on critical mating surfaces are ±0.05 mm per ISO 2768-mK, and surface roughness on sealing surfaces is Ra 1.6 to 3.2 μm per ISO 1302. The weight typically ranges from 15 to 25 kg, depending on final dimensions. The housing offers an IP65 rating per IEC 60529, indicating dust-tight protection and protection against water jets. Corrosion resistance is verified by a salt spray test per ISO 9227, with a minimum duration of 500 hours. These specifications serve as reference values; actual model-specific parameters must be confirmed with the legal manufacturer or supplier. The Pivot Housing is essential for the reliable operation of the boom base, ensuring smooth pivoting action and long-term durability under demanding conditions.

The Pivot Housing provides a rigid frame that contains bearing surfaces and mounting points for the pivot assembly. It allows controlled rotation of connected components by supporting the pivot mechanism and distributing loads evenly. The housing prevents misalignment by maintaining precise dimensional tolerances and surface finishes on critical interfaces. It also protects internal components from environmental factors, contributing to the overall structural integrity of the Boom Base Section.