At present, there are three main methods for damping the chassis of mobile screw compressors at home and abroad: (1) installing spring steel plates for vehicles between the chassis and the axles; (2) installing torsion springs in the middle of the axles; (3) using rubber anti-vibration, The working principle is the same as the second method of damping, that is, the axle is made of square steel, and a small square steel with a 45° angle to the axle steel is inserted into the axle steel, and four rubbers are inserted between the axle square steel and the small square steel. Rods, small square steel and crank, crank and flange shaft are steel connections. The flange shaft is the place where the wheel is installed. The torque generated by the weight of the screw compressor is balanced by the torque generated by the pressure of the four rubber rods. The first two methods are complicated in structure, high in cost, but easy to install; the third method structure Simple, low cost, but complicated to install. Through comprehensive comparison, we believe that the third method is more difficult to install, but it is good for reducing the cost and weight of the whole machine. So we decided to use the third method to design. After repeated modification and trial production, the rubber damping mechanism was finally developed. The trailer test showed that the vibration damping effect of the mechanism was good and the design requirements were met.
The mobile screw compressor gas volume adjustment system generally adopts ON/OFF adjustment + speed regulation. When used under the condition of changing working conditions, the relief valve and the diesel engine throttle move frequently, which affects the life of the unloading valve and the diesel engine and the energy saving effect of the unit. On the basis of the foreign advanced mobile screw compressor gas volume adjustment system, we adopt the current advanced proportional adjustment + ON / OFF adjustment + speed adjustment: that is, the use of gas volume in the 70% ~ 100% change of the rated displacement Proportional adjustment; ON/OFF adjustment is used when the gas consumption varies from 0 to 70% of the rated displacement.
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