The rotary fan is composed of host, base, motor, large and small pulleys, air chamber, air filter, oil drip nozzle and other parts. The main engine of the rotary fan is made of cast iron, with 2 metal rings (or 8 springs), 1 main engine shaft, 1 rotor, 4 sliding plates, 1 eccentric cylinder block, and 2 pump covers. The fan metal ring, rotor, sliding plates, pump cover, and eccentric cylinder block are made of wear-resistant castings, and the main engine shaft is made of 45 # steel. Four sliding plates of the rotary fan are embedded in an equally divided rotor. The shaft of the rotary fan is fastened to the center of the rotor. Bearings are installed at both ends of the shaft and are connected to the front and rear pump covers and installed on the eccentric cylinder block. At this time, the rotor and four sliding plates embedded in the rotor form four spaces with different volumes with the inner wall of the cylinder block. During the operation of the rotary fan, The metal ring or spring drives the sliding vane to move at a uniform speed along the inner wall of the cylinder. The cylinder body of the rotary fan is composed of a suction inlet, an air guide slot at the suction inlet, an exhaust outlet, and an air guide slot at the exhaust outlet. The working process of rotary fan consists of three parts: suction stroke, compression stroke and discharge stroke. When the rotary fan rotates, the four slides in the rotor slot will reciprocate to draw in, compress and discharge air, forming the fan.
After the rotary fan is impacted, it may cause the fan rotor to lean and the fan does not work properly. Loosen the bolts, tap the rear cover of the fan gently, and pull the fan belt until the fan belt can be pulled without any sense of weight. After the rotary fan is collided, it may cause the rotor of the fan to lean, and the fan will not work properly.
1. In case of collision accident of rotary fan, first pull the fan belt by hand to test whether the fan can rotate normally. If the fan can rotate normally without sense of weight, the fan is free of fault.
2. If the fan cannot be pulled, or can be pulled but has a sense of weight, it means that the fan rotor is leaning. At this time, loosen the rear cover bolt, gently tap the fan rear cover with a wooden hammer, and pull the fan belt at the same time until the fan belt can be pulled without a sense of weight, and then tighten the rear cover.
Shandong Xinqianshun Machinery Co., Ltd. is a professional Roots blower supplier integrating design, development and sales. The company's products include Roots Blower Roots vacuum pump, centrifugal fan, rotary blower, single-stage high-speed centrifugal blower, countercurrent cooling vacuum pump. It mainly produces Roots blower, which absorbs advanced technology and relies on a new generation of high-efficiency and energy-saving products developed by scientific research institutes. With reasonable structure, small size, high efficiency, low noise, stable operation, long service life, convenient maintenance and other characteristics, it is widely used in sewage treatment, mining, metallurgy, chemicals, building materials, electricity, light industry, flour, aquaculture and other fields. Over the years, it has been well received by users.
