AGV chassis structures mainly include single steering wheel drive structure, double steering wheel drive structure, four steering wheel drive structure, two-wheel differential drive structure and Mecanum wheel drive structure.
Single steering wheel drive structure: This is the simplest AGV chassis structure, consisting of a steering wheel and two directional wheels. It is suitable for loads over 1 ton, such as tractors and forklifts. The single steering wheel drive structure can adapt to a variety of ground conditions, but it may deviate during driving, and certain control skills are required when turning.
Dual steering wheel drive structure: This structure is suitable for loads over 1 ton and occasions where translation in any direction is required. The dual steering wheel drive structure consists of two driving wheels and one or more non-driving wheels, which is common in medium-loaded AGVs. It has high stability and does not require special skills when turning. It is suitable for transportation scenarios with medium and heavy loads, medium speeds and more complex paths.
Four steering wheel drive structure: This structure uses four steering wheels as drive and steering units, and achieves omnidirectional driving and precise positioning by precisely controlling the movement of each steering wheel. The AGV with four steering wheel chassis has extremely high flexibility and stability, and is suitable for heavy-load, high-speed and complex path transportation scenarios.
Two-wheel differential drive structure: Suitable for AGVs with loads from 500 kg to 1.5 tons, with the ability to rotate in place, but not to translate. This structure can be divided into 3-wheel and 6-wheel layouts. The 3-wheel structure includes two drive wheels and a universal wheel, while the 6-wheel structure requires special floating treatment to ensure that the drive wheels are always on the ground.
Mecanum wheel drive structure: It consists of four Mecanum wheels and is suitable for occasions with low operating frequency and requiring translation and rotation in any direction. The advantage of this structure is high flexibility of movement, but special design is required to ensure that all four wheels are on the ground at the same time to achieve the ideal movement effect.