The self loading mixer is composed of chassis and top loading. Besides the mixing tank, the hydraulic system is the most important part for the top loading Zui. The hydraulic oil pump in the hydraulic system is a relatively fine part. Therefore, great attention should be paid to the use and maintenance of the hydraulic oil pump during the operation of the self loading mixer.
The working principle of the oil pump: when the variable rod is turned to the left by the control lever device, the oil pump starts to drain oil from the oil port, enters the motor through the high-pressure oil pipe, the motor rotates, and the oil flowing through the motor becomes low-pressure oil, and then flows back to the oil pump from another oil port through another high-pressure oil pipe. The greater the rotation angle of the variable rod, the more oil is discharged from the oil pump per revolution, and the higher the motor speed is. When the variable lever is turned to the right, the pressure oil is discharged from the other port, the rotation direction of the motor is changed, and the low-pressure oil flows back to the oil pump from the oil port.
The rotation of the motor of the self loading mixer drives the reducer, so that the mixing tank of the mixer can be infinitely variable in a certain speed range and has two rotation directions. The principle of other hydraulic oil pumps is the same. In order to make the hydraulic oil pump efficient and trouble free, it is necessary to strengthen the maintenance in daily use, operate according to the manual, and timely replace the hydraulic oil and auxiliary devices as required.
Pay attention to the following points when changing hydraulic oil:
1. Use hydraulic oil with stable performance and meet the requirements, do not use filtered and precipitated hydraulic oil.
2. The oil filter should use the filter precision of 10.
3. The shell of main system, pump and motor should be filled with hydraulic oil before starting.
4. The hydraulic oil and filter element should be replaced in time according to the instructions.
There are domestic, Sino foreign joint venture and imported hydraulic systems for the loading mixer. Generally, the standard configuration of small mixer truck is domestic hydraulic system. For large mixer truck, such as rear double axle, small three axle, front four and rear eight mixer truck, the standard configuration is imported or Sino foreign joint venture hydraulic system. Of course, in addition to the standard configuration, it can be installed according to the needs of customers Brand hydraulic system price is also different.
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