Large-torque brake hub motor

Abstract

The invention belongs to the technical field of electric carriers, and provides a large-torque brake hub motor. The motor comprises a motor stator, a motor rotor, a motor shell and a motor shaft, the motor shell comprises a roller, a first end cover and a second end cover, the first end cover and the second end cover are arranged on the two end faces of the roller, and the motor rotor, the motor stator, a component A and a component B are arranged on the inner side of the roller. The relative position of the motor rotor and the roller is positioned through a first cylindrical pin and fixed through a first screw, connection of the motor rotor and the roller is achieved, synchronous rotation is ensured, the motor shaft penetrates through the motor rotor and the roller, and the two ends of the motor shaft are supported on the first end cover and the second end cover to keep relative movement. A motor winding is assembled in a motor stator winding groove to form a hub motor excitation assembly, a magnetic steel sheet is assembled on the inner side face E face of an electronic rotor to form a hub motor permanent magnet, and when the motor winding is powered on, a rotating magnetic field is generated to drive the motor rotor to rotate to drive a roller to rotate to generate driving force; and the motor has the advantages that the advantages of a traditional manpower vehicle and a traditional motor-driven vehicle are combined, and the manpower and motor dual-drive mode is achieved.

Description

technical field [0001] The invention belongs to the technical field of electric transport vehicles, and in particular relates to a large-torque braking wheel hub motor. Background technique [0002] At present, the driving of electric pallet trucks and electric stackers on the market basically adopts the form of motor + gear box + electromagnetic brake, and the motor is directly connected with the gear box and electromagnetic brake. Individually adopt gearless hub direct drive motors that cannot realize high-torque electromagnetic brakes and manual release of electromagnetic brakes; [0003] There are several disadvantages in the above design: 1. The gears inside the gearbox will wear out after a long time of use and the noise will increase; 2. Due to the lubricating oil inside, there is a hidden danger of poor sealing and leakage; 3. Gearless hub direct drive Although the motor does not have the unique disadvantages of gear reduction drive, the gearless hub direct drive mo...

AI Technical Summary

Problems solved by technology

[0003] There are several disadvantages in the above design: 1. The gears inside the gearbox will wear out after a long time of use and the noise will increase; 2. Due to the lubricating oil inside, there is a hidden danger of poor sealing and leakage; 3. Gearless hub direct drive Although the motor does not have the unique disadvantages of gear reduction drive, the gearless hub direct drive motor has the disadvantages of large low-speed torque, which cannot realize electromagnetic braking, and cannot be safely applied to electric pallet trucks and electric stackers; 4. In case of vehicle failure 1. When the battery is out of power, the electromagnetic brake is powered off and braked. At this time, the drive is in the parking brake state and cannot move. In this case, it is very easy to block the road and affect the traffic; 5. When the vehicle cannot When walking and has no maintenance value, but the mechanical parts can still be used, because the vehicle cannot be dragged, the whole vehicle can only be scrapped, resulting in a waste of resources

Images