Before the springboard leaves the top to jump quickly, the top spring ensures that the moving and stationary contacts are always on. When the springboard quickly jumps clockwise, the bakelite block is driven to disconnect the main contact, and the motor is de-energized to stop running. At this time, the air pressure of the air tank is at the highest value set. If the top spring fails, the contact between the moving contact and the stationary contact is maintained, but is supported by the bakelite block and moves along with the bakelite block. The gravity of the bakelite block and the spring force of the moving contact act on the springboard, causing the critical equilibrium point to move further down. When the air pressure is at a certain pressure value, the right end of the springboard drops from the highest point to a certain height that has not yet jumped, so that the bakelite block drives the moving contact away from the static contact, and the air compressor is powered off. As the air pressure of the gas storage tank is consumed during use, the air pressure drops, and the springboard rises slowly, and the main contact is turned on again. This process can be repeated continuously, although the springboard does not jump between the upper and lower ends, but the springboard does not jump between the upper and lower ends, The air pressure of the air compressor can also be stabilized. The pressure at this time may not be the highest pressure for normal operation. If the operator does not carefully understand the state of the pneumatic automatic switch, it is easy to mistakenly think that the pressure is improperly set, so the screw is artificially adjusted, and the main spring is pressed to make the contact open. The disconnected pressure value increases to meet the job requirements. Since the top spring does not function, the pneumatic automatic switch can only be turned on and off frequently. Long-term work will overheat the motor, and arcing will occur due to the contact opening and opening action, resulting in contact corrosion, poor contact or motor phase loss, shortening the service life of the pneumatic automatic switch. China Js500 Concrete Mixers,Js Concrete Mixer manufacturer, choose the high quality Js500 Electrical Concrete Mixer Machine,Js Horizontal Axle Mixer, etc.
The advanced hydraulic driving equipment avoid that the m1x1ng plant can't discharge because of the shortage of the pneumatic when the pneumatic doors is unloading .There are serval arrest point to be general switch on the unloading gate so that it is convenient to pour into the mixer.It is safe and reliable that double unloading way can work with manual discharging control when the power outage.
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