Square-Base Cylindrical Motor Frame

The Square-Base Cylindrical Motor Frame is a hybrid support structure that combines a square lower base with a cylindrical upper or middle section. It integrates the stability of a box-type base with the spatial and functional advantages of a cylinder, and is widely used in the electric motor industry. Its defining feature is the “stable square bottom, cylindrical upper section” design: the lower part provides rigid support via a square or rectangular base, while the upper or middle cylindrical section meets special functional requirements.

Core Structural Features
1. Composite Structural Design
Square base:
Constructed by welding steel plates into a robust frame, with four-corner supports providing excellent anti-tilt capability.

Adjustable leveling feet at the bottom allow adaptation to uneven floors and ensure precise horizontal alignment.

Cylindrical section:
The middle or upper section uses a cylindrical structure, typically fabricated by rolling and welding steel plates.

The cylinder and square base are connected through a “round-to-square transition” structure, enabling smooth geometric conversion.

Internal stiffeners, ventilation channels, or positioning devices can be incorporated to enhance functionality.

2. Key Connection Technology
Integrated welding: Continuous weld seams join the square base and cylindrical section to ensure overall rigidity.

Reinforcement plates at critical joints improve torsional resistance.

3. Motor Support System
The cylindrical section accommodates the stator core, with axial stiffeners providing additional support.

The square base houses the bearing pedestals and cooling system, facilitating maintenance and assembly.