The self loading mixer is composed of a chassis and a top loading. The top loading is important except that the mixing tank is the hydraulic system, and the hydraulic oil pump in the hydraulic system is a relatively fine component. Therefore, great attention should be paid to the use and maintenance of the hydraulic oil pump during the operation of the mixer.
Working principle of hydraulic oil pump: when the variable lever is rotated to the left through 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, 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 larger the rotation angle of the variable lever, the more oil will be discharged by the oil pump per revolution, and the higher the speed of the motor. When the variable lever is operated to rotate to the right, the pressure oil is discharged from the other port, the rotation direction of the motor changes, and the low-pressure oil flows back to the oil pump from the oil port.
The rotation of the motor drives the reducer, so that the mixing tank of the mixer can be infinitely variable within 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 work efficiently and trouble free, it is necessary to strengthen the maintenance in daily use, operate according to the instructions, 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 that meets the requirements. Do not use filtered and precipitated hydraulic oil.
2. the oil filter is easy to use with a filtering accuracy of 10.
3. the shells of the main system, pump and motor shall be filled with hydraulic oil before starting.
4. the hydraulic oil and filter element shall be replaced in time according to the instructions.
Before starting work each time, please check the hydraulic oil. If you find the oil level gauge and oil color of the oil window of the gearbox and reducer, replenish the oil or replace it according to the situation.
When the mixer is working, pay attention to check the filter element and vacuum gauge of the hydraulic oil tank to prevent the filter element from having too much return resistance due to poor oil quality. If the resistance is too large, pull out the filter element for replacement, or even replace the hydraulic oil.
Frequently check the oil pump and motor, check whether there is hydraulic oil leakage at the connecting part, and whether the interface is loose (especially the oil suction pipe of the hydraulic pump is easy to loosen and air intake, resulting in system noise and oil discharge from the breathing port of the oil tank)
If the hydraulic system is found to be faulty, such as the noise is increased, but there is no sound of metal impact, it is necessary to check the oil and temperature. Shut down the meeting service station for inspection if necessary. If there is metal impact sound, please report for repair immediately; If you find a more serious problem, and it happens that there is concrete in the machine, you must report for repair in time, or find two high-pressure emergency oil pipes and connect them to other machines
The above is the relevant content about the problem shared for you today. I hope it can help you. If you want to know more, you can contact us by phone or follow our website https://www.zishangliaojiaobanji.cn 。