Cam rotor pump is used in food daily chemical industry. Cam double rotor pump is widely used in petrochemical, fine chemical, daily chemical, pharmaceutical, food, environmental protection, paper, paint, metallurgy and other industries.
The cam double rotor pump generally includes gear box, pump body, pump cover, rear box cover, main drive shaft, auxiliary drive shaft, two cam rotors, gears and so on. Its working principle is that the main drive shaft is connected with the motor through the coupling. After the motor is started, the main drive shaft rotates, and the secondary drive shaft rotates synchronously with the main drive shaft and in the opposite direction through the transmission of a pair of gears. In the cam double-rotor pump of the prior art, the internal gears are located in the gearbox and meshed with each other, and the gears are directly fixed on the shaft, which makes it difficult to install the gears and adjust the meshing angle of the two cam rotors at the front of the main drive shaft.
The content of the utility model aims at the shortcomings of the existing technology, the utility model aims to provide a novel cam type double rotor pump, which is composed of a gearbox, a cam rotor, a front cover, a mechanical seal assembly, a pump body, a bolt, a bearing gland, a locking nut, a gear, a positioning sleeve, a short drive shaft, a long drive shaft, a gear gland, a back cover of the gearbox, a base, etc. The technical proposal adopted by the utility model to solve its technical problems is that the gearbox is arranged above the base, the rear cover of the gearbox is fixed on one side of the gearbox, the other side of the gearbox is provided with a pump body, and the outside of the pump body is provided with a front cover and is fixed with bolts; two cam rotors are arranged in the cavity formed by the pump body and the front cover, and the long drive shaft and the short drive shaft are connected with the fixed nut through the two cam rotors. The two gears are arranged in the cavity formed by the gearbox and the rear cover of the gearbox, and the two gears are fixed with the long drive shaft and the short drive shaft through positioning sleeves and locking nuts at both ends, and the outer sides of the two gears are provided with gear caps. As a further technical feature, the two gears are meshing with each other. The two gears of the cam rotor pump are on the same side outside the gearbox. A mechanical sealing assembly is arranged between the pump body and the gearbox. The utility model has the advantages of easy maintenance and cleaning, wear resistance, corrosion resistance and the like, the installation of gears and the adjustment of the meshing angle of the two cam rotors are simple and convenient, the structure is compact and the service life.
