Application and energy saving of the torque limited hydrauliccam and groove coupling in mixed sand machine

　　Start with load: in the past, sand mixing machine stops and starts, must be to empty the sand in the machine, otherwise unable to start.

　　After the application of hydraulic cam and groove coupling transmission, without tunneling machine sand can be started, is welcomed by the workers.

　　Reduce the installed capacity: installed capacity is reduced by an average of 27%.

　　Overload protection: in the sand mixing machine, it is mixed with impurities such as iron overload, cam and groove coupling can protect the machine from being damaged. For example, Tangshan iron foundry metallurgical machinery plant using S116 sand mixing machine, 1986 put into production a new, not to the malignant accidents of three months of two, general three accidents, causing loss of more than 5000 yuan.

　　In 1987, hydraulic cam and groove coupling was improved, the motor power is decreased from 30KW to 22KW, not only energy, but also has the light load start, overload protection function, simplify the operation, save repair cost

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