There are various proposals for the structure of the traction motor integrated with the wheel. According to the form of the motor, it can be divided into an inner rotor type that rotates inside and an outer rotor type that rotates outside. In the wheel-integrated traction motor design using the same inner rotor structure as the conventional motor, the rotor of the traction motor is directly connected to the axle, and the stator is supported by the axle through the bearing. In the basic structural solution of the traction motor integrated with the wheel of the outer rotor type structure, the axle is fixed, and the stator of the traction motor is fixed on the axle. The wheel is mounted on the axle by means of a bearing, and the rotor of the traction motor is directly connected to the wheel. When the inner rotor type structure is adopted, the bearing for the traction motor is an indispensable component. When the outer rotor type structure is adopted, the bearing for the traction motor has been omitted, and the structure is simpler.
The wheels of ordinary railway locomotives are all driven by the left and right sides (two-wheel drive). On the other hand, when the outer rotor type structure is employed, each wheel drive method in which the left and right wheels can be independently rotated can be employed. Compared with the two-wheel drive method, the structure is complicated, and the decanter centrifuge can show that it is possible to build a so-called independent wheel type electric 1 bogie that can rotate independently. If this type of bogie is used, and the method of subtly controlling the left and right wheels is supplemented, there is a desire to improve the running stability of the train in the straight line section and the smooth curve passing performance. Since the left and right wheels are mechanically independent, they are also characterized by the ability to easily make a variable wheeled bogie. Compared with the conventional method, the traction motor integrated with the wheel is a power device that realizes less maintenance, low noise, energy saving and space saving. However, the traction motor has the performance requirements of large torque, light weight, strong and reliable. Advantages of wheel integrated traction motor: no need to install additional traction motor (simplified bogie structure), no need for reduction gear (saving maintenance, noise reduction), no transmission loss (high efficiency), is conducive to Achieving low flooring is conducive to the realization of independent wheel drive mode. #Producing the problem of lightweighting of the motor car, the traction motor is subjected to a large impact, and because of the low rotation speed, a large torque is required.
It is possible to ensure the traction motor integrated with the wheel. The traction motor integrated with the wheel has many advantages. However, in the past, the traction motor has a large volume and a heavy weight, and it is difficult to put it into practical use. However, with the advancement of power electronic device technology in recent years, a power supply device (VVVF inverter) capable of arbitrarily changing voltage and frequency has been put to practical use. A three-phase AC induction motor that is smaller, lighter, and more reliable than conventional DC motors has been adopted. In addition, with the development of high-performance permanent magnet materials, permanent magnet synchronous motors that are smaller, lighter, and more efficient than induction motors have also become popular in the field of small motors. If this technology is introduced into a railway train, it is likely to constitute a direct drive traction motor integrated with the wheel. This program is under development. Figure 3 shows the progress of the performance of the permanent magnets (maximum energy product) for each period.
1, FY-16A Flat Face Mask Machine
Introduction:
Semi automatic flat mask production line adopts advanced design, only need to put the raw material on the feeding rack, after the completion of the modulating, the machine can realize automatic production. It only need one person to operate and fully realize the whole process of automatic production. The equipment also adopts ultrasonic welding, which is beautiful, sanitary, environmental friendly.The output is 150-200 pcs/min. The length of nose bridge bar can be adjusted. The product size error is ±1mm.
Features:
1. High efficiency(150-200 pcs per minute) but in small size. The whole machine made of aluminum alloy, make a fine and classic look and with good rust protection and sturdiness.
2.With high output and 1-4 layers of mask blank producing adjustable.
3.With nose pin inserting in line.
Specification:
Machine Size: L3340*W800*H2000mm without conveyor
L4840*W800*H2000mm with conveyor
Mask blank size: 175*95mm
Nose bridge is inside the mask.
Output: 150-200pcs/min
Voltage: 220V
Power: 3KW
Net Weight: 400 KG
Installation and adjusting:
Factory will adjust the machine to best working status before delivery. Factory offer adjusting and installing video to custom and offer on-line technical support due to the Virus affecting.
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DongGuan FeiYang Packaging Machinery Equipment Co., Ltd , https://www.feiyang-machinerys.com