Hub directly driven by motor and used for heavy-duty chassis dynamometer

A hub directly driven by a motor and used for a heavy-duty chassis dynamometer, comprising a hub body, wherein a mounting surface is arranged on an inner circumference of the hub body and is disposed around a transmission shaft coaxial with the hub body, the transmission shaft is sleeved with a driving assembly, bearing assemblies are disposed on two sides of the driving assembly in an axial direction respectively, and the pair of bearing assemblies are mounted on a support frame through a motor mounting base;

• sections, close to the mounting surface, of the driving assembly and the motor mounting base are sleeved with an inner side of the hub body;
• a plurality of axial mounting plates are disposed on an outer circumference of the driving assembly, and tension sensor assemblies are connected to the axial mounting plates located outside the hub body and are mounted on the support frame;
• and an end, away from the mounting surface, of the transmission shaft, is sleeved with an end flange plate, and a plurality of brake assemblies are disposed on the end flange plate and are mounted on the support frame.