Heavy duty apron feeder is widely used in industrial sectors such as mining, metallurgy, building materials and coal. It is suitable for short distance transportation of materials with large block degree, and has the advantages of large load bearing, uniform ore feeding and strong impact resistance. At the same time, it also has the disadvantages of large volume, more moving parts, more lubrication points, and large maintenance workload. There are more lubrication points, poor lubrication of any part such as reducer, motor, lower tug, heavy support wheel, tension device, etc., may lead to bearing damage, equipment outage and other accidents, do a good job of heavy duty apron feeder lubrication, to improve the utilization rate of equipment, it is of great significance to ensure the good performance of the equipment, reduce the amount of labor and reduce the amount of maintenance and repair costs.
The lubrication points of heavy duty apron feeder are reducer, motor, lower roller, support wheel, tension device, etc., all parts of the bearing are using shell 3# lithium grease, reducer using kunlun 220# industrial gear oil. By manual lubrication, there are the following disadvantages:
(1) Refueling time can not be strictly implemented, the interval is not fixed,
(2) Uneven distribution of lubricating point oil leads to poor lubrication effect, fast equipment wear, large maintenance workload, and rising production costs.
(3) Can not be measured, the amount of lubrication is more or less, easy to cause waste or lubrication is not in place,
(4) High manual labor intensity. In order to solve the problems caused by manual lubrication, ensure good lubrication of equipment, reduce the occurrence of faults, reduce production and maintenance costs, and improve the equipment operation rate, install thrh-i automatic oil injection lubrication system for heavy duty apron feeder by comparing the products of multiple lubrication equipment manufacturers. Automatic lubrication system automatic centralized lubrication system is the organic integration of sensing technology, information technology, automatic control, machinery manufacturing and management ideas, the lubrication system is designed and manufactured according to the timely, appropriate, accurate lubrication concept, so that the lubrication of large-scale equipment in enterprises into the era of automatic control and network monitoring, a large number of replaced the previous single, two-line distributor lubrication system.
3.1 System functions (1) can adjust the oil supply cycle, oil supply amount, and oil supply time at any point: (2) the positive displacement flowmeter is used to achieve accurate flow control, overcoming the inaccurate measurement caused by factors such as the length of the oil circuit, environmental temperature changes, and oil supply pressure fluctuations in the oil pump when measuring by time: (3) by installing positive displacement flowmeters in the main oil circuit and the subtank, the formation of double detection, real-time monitoring of the oil supply of the subtank and comparison with the set value, timely alarm is found, and the fault nature and fault location are specified, (4) the system adopts point-by-point oil supply and point-by-point detection of the oil supply mode to ensure the reliability of the detection, (5) the system has automatic. Manual and other control methods, and through the upper computer to complete the adjustment of lubrication point parameters, (6) each lubrication point in the system has a unique number, not repeated. Lubrication point number can be adjusted.
3.2 System working principles
Automatic oil injection lubrication system for all lubrication points unified number, in the normal operation of the main equipment for the lubrication cycle time, there is a lubrication point lubrication cycle when:
(1) First, the main control cabinet outputs the starting signal to the high pressure oil pump, and the high pressure oil pump starts to work and transfers the grease to the "Main oil pipe".
(2) Slightly delay the system pressure, the main control cabinet output "Start point lubrication" Command, in the "Start point lubrication" Command, including the number of the point to be lubricated, the amount of lubricating oil to be added and other information,
(3) After receiving the "Start point lubrication" Command, the intelligent sub-tank determines that it is a lubricating task, an intelligent sub-tank with lubricating tasks, automatically completes the opening of the lubricating point solenoid valve, the monitoring of the lubricating amount, the closing of the lubricating point solenoid valve and other actions, and reports the blockage alarm of the lubricating point to the main control cabinet when the main control cabinet queries the lubrication performance.
(4) When the control cabinet is checked to determine the end of the oil supply at all lubrication points, the system enters the cycle time, and the high pressure oil pump stops working. When the lubrication system arrives at the next lubrication cycle, it will start again and repeat the oil supply process of the system, so that the intelligent oil supply of the entire equipment lubrication system can be realized.
The automatic oil injection lubrication system has achieved good results on the lubrication of heavy duty apron feeder. The system is simple in operation, reliable and easy to maintain. It can lubricate and control flow at multiple points at the same time, and can be popularized in modern large-scale mining equipment. Automatic lubrication of ball mill, rotary kiln, flotation machine, belt conveyor, slurry pump, vibrating screen, mixing bucket and other equipment to improve the equipment operation rate and production capacity of the entire process.
