Use and maintenance of MAAG reducer thin oil station

1=SimSun reduces the wear of the gear sleeve. The oil change interval of the reducer is extended by nearly 13 and it has received good results. However, when switching to a serpentine cooler, it is necessary to consider the pressure loss of the lubricating oil in the snake and the tube, and to ensure that the lubricating oil pressure of the reducer meets the design requirements of the manufacturer.
2 How to judge the wear of the bearing? The 30 planetary gear reducer is an integral seal, and the internal gear bearing is not visible. It brings great difficulties to daily maintenance. Several support bearings are light and narrow series bearings, which is the weak link in the use of the reducer. Several of the reducers in mine have been used in the low-speed shaft to support the bearings. The low-speed shaft shaft end coupling and the shaft are keyless interference joints. The coupling is removed for bearing inspection, and the field cannot be carried out. It is very difficult to judge the bearing wear condition during normal use. In response to this situation, we have adopted the following two methods in combination with the scene to hear the operating speed of the output shaft of the output shaft is slower. If the output shaft support bearing is seriously worn, the output shaft will run with vibration. I will hear the irregular drop of the bearing ball on the runway, and use the reducer to observe the hole. I can also touch the outer bearing bearing with the hand. I have profound lessons. The three reducers of our mine are used in two wellheads, which are spare for each other and have many replacements. At the beginning of the use of the three reducers, there was no question after every time the gear unit was replaced. However, after 45 years of use of the reducer, the correction data did not match the actual use. After careful inspection and analysis, It is believed that the main reason is that the output shaft of the reducer has a bowing phenomenon. After finding out the original factor, before each correction, it is necessary to accurately measure the deviation of the data reflected by the shaft head in the alignment, so that when looking for a positive reading, the buckle is deducted. Deviation data is taken to ensure the normal operation of the reducer. Of course, if the position of the reducer is fixed, the best way is to record the size of the floor mat after the gear unit is put into operation for the first time, and drill the eye for good stability. No need to find it again. This is also the difference between planetary gear reducers and other reducers. In short, the 30 planetary gear reducer has the unparalleled advantages of other ordinary reducers. As long as it is used properly, it will become more and more important in the production of coal mines. Zen yells at you and licks your ridge. This method was used in May 1997. It was successfully judged that one of the reducer support bearings had worn out excessively, and was promptly replaced and sent to the factory for dismantling and overhaul.
2 Measure the floating amount of the output shaft with 0.51 jack and gently support the outermost end of the output shaft to support the lower part of the coupling. Note that the jack cannot support the weight of the reducer body, just lift the output shaft to the highest position. , measure the floating amount of the output shaft, measure the time when the reducer is put into operation, measure the time after using the period of time, compare the change value of the two floating amounts, and then calculate the floating amount of the output shaft according to the maximum clearance of the bearing, thus Accurately determine the degree of wear of the bearing. That is, the output of the output shaft is calculated for the B-line gear reducer.
The distance that the output axis floats from the horizontal position to the highest position.
In the actual measurement, due to the self-weight of the coupling, the shaft is bowed, and the stroke of the jack should be the top output shaft of the jack, and then the top to the most floating point.
If the speed reducer is used after a period of time, the measured value is 1 than the value of the new input, it can be concluded that the bearing clearance is too large, or there is a gap between the output shaft and the inner race of the bearing, and should be replaced immediately. The replacement of the 330 planetary gear reducer and the alignment of the planetary gear reducer are compact and small, and the replacement is convenient. However, it must be recognized that due to the fact that there are several stages of floating tooth sleeves inside the 30 planetary gear reducer, the parts of the sleeve gears will wear out during the process, so the input shaft of the speeder is just after the operation. The coaxiality of the output shaft is good, but after using the segment time, the output shaft of the input shaft will have different degrees of bowing, and the two axes will have poorer heart. At this time, if the reducer is corrected, there will be no base thief to enter, the use and maintenance of the reducer thin oil station. Yang Ximin Wang Yong Qi Yanmin Henan Henan Yuhe Cement Co., Ltd. Henan Hebi I plant is a typical kiln two mills of daily production clinker New dry process production.
line. In order to ensure the long-term safe and stable operation of the entire production line, our factory has introduced a 0, 22 reducer from Switzerland. As an imported equipment, the mechanical parts are relatively stable, and human factors have little effect. The variables are mainly reflected in the lubrication system. Therefore, the design of the sleeve is well installed. For the speed machine system, the key question is whether the lubrication system is stable and reliable. According to the experience of our factory for two years, the operation and use of the reducer oil station and its daily maintenance and maintenance The method analyzes the frequent faults of the thin oil station and the causes and the effective troubleshooting methods.
1 The operation principle of the lubrication system of the thin oil station, the speed machine and the main reducer itself adopt the central centralized lubrication system. After more than two years of use, the equipment performance is superior and reliable, ensuring the efficient operation of the mill system. Its lubrication system device
8. Planetary reducer 9. Main motor 10. Connected to the auxiliary transmission. Instrument board 2. Oil cooler 13. Thermostatic control valve 4. Shunt tube 15. Relief valve 16. Double filter 7. Relief valve 8. Gate valve 19. Check valve 20. Lubricating oil pump 21. Pressure regulating valve 22. Venting hole 23. Heating the fuel tank 24. The compensator is accurate, moving, and put into operation according to the data of the hung, the reducer will produce severe vibration and even the cracking of the outer casing of the reducer, which is in the mine and the brothers are thin oil stations. According to the design instructions, the temperature is not low in the fully enclosed dust-free environment, 0妒山, 2,2.; 10 to ensure oil viscosity can always make the mill reducer in the startable state. Its main components include the fuel tank and the heating tank heater oil as a whole, the pump filter connector plate and the like. Under the premise of confirming the direction of rotation of the oil pump, the system pressure is adjusted to the normal range through the pressure regulating valve, and the system is released to prevent the lubricating oil from foaming, and then the lubrication system can be opened. Its work 4, the principle is as follows: the lubricating oil is pumped out through the lubricating oil pump, through the one-way valve gate valve double filter, through the thermostatic control valve that controls the oil cooling water flow to control the oil inlet temperature, and control the oil intake through the overflow valve After the oil pipeline, the oil pipe of different root diameters enters different parts of the reducer to achieve lubrication and cooling of the main reducer.
Then, the oil return temperature and pressure are detected by the two oil return pipes through the block plate, and then returned to the oil tank to complete the lubrication and lubrication detection function of the entire system design. In winter, when the system oil temperature is lower than the set minimum temperature, the heater works to maintain the system oil temperature.
The lubricating oil tank contains a heating oil tank. One lubricating oil 1500 uses 830 buckle 320 mechanical lubricating oil; the heating oil 400 uses 350 7,00 mechanical lubricating oil.
2 oil pumps, standby spiral pump, model 06096,900 for 8, pressure supply 22, oil, rated speed 14501.
Rated speed 1450, rated voltage 38.
Oil filter 2 sets of double filter, filter insert filter 6025 him.
Oil cooler 1 set of stomach 516, cooling water flow 5.71 work 7 instrument plate 2 block 1 block for adjusting the cooling water flow required by the cooler and 1 block to check the lubricating oil return pressure and temperature.
3 Separate operation of the lubrication system After the lubrication system is installed, the whole system is tested or the main components such as the oil valve 1 and the multi-filter oil cooler are replaced to ensure the system works. The stability requires separate operation of the lubrication system. The operation process is as follows: 1 Check the oil level. In January, when the oil station is started after the inspection, the oil level in the fuel tank will be. Because the main oil pump tubing, filter and other components are filled with oil and need to be replenished to the normal oil level; 2 confirm that the control slaughter switch is in the grinding stop position; 4 the auxiliary motor and the brake lift device are closed; the fuel tank is exhausted, Unscrew the exhaust port and close the exhaust port after the exhaust is finished. 7 Select the oil pump as the main oil pump, check whether the setting data is reasonable, and start the oil pump from the automatic shut-off of the oil pump to the open position; 81 Whether the cooling water system is normal; 9 Observe whether there is oil leakage in the road, if any, take immediate measures; observe whether the oil returning mirror has oil return, or observe the return pressure and temperature through the instrument plate.
After the above operation process is completed, if it is determined that the entire system does not have any request to the central control room according to the set operating procedures, the normal remote operation of the whole raw material grinding system is performed. 3 5 Oil station frequent failures and troubleshooting methods Motor power and worm gear pump If the requirements do not match, the motor needs to be replaced; 1 the pipe or pipe joint oil leaks and needs to be repaired; the filter or oil cooler is blocked, need to be cleaned, Φ鹘诜, 闯浞 蚩, 枰, 浯蚩, pump bearing slips, need Replace the bearing.
If the pump pressure difference is too large, the double filter is clogged and the filter needs to be cleaned.
Oil, too high 8. The host is defective, the return temperature is too high, and the main unit needs to be overhauled; 1. The heat exchange oil cooler is contaminated, and the oil cooler needs to be cleaned; the heater is not disconnected, and a computer inspection program or instrument inspection is required. Instrument, recovery program or instrument works normally; 1. Cooling water into the oil cooler is blocked, need to clean the inlet or outlet pipe; 1 cooling water temperature is too high, need to reduce the cooling water temperature, the oil level drops due to system leakage and oil loss Too much, you need to refuel and repair the oil circuit.
The oil level is too high. The water in the heat exchange oil cooler is blocked. It is necessary to clean the inlet or outlet pipe and deflate the tank.
6 Conclusion Through the working principle and daily inspection and maintenance of the reducer thin oil station, determine the effective troubleshooting method of the set, which can ensure the long-term safe and efficient operation of the raw material grinding system equipment, and provide good conditions for the normal operation of the whole production line. To achieve the purpose of improving the economic efficiency of enterprises. Received date 2002 sand spring selection and activation of sales examples Li Cairong 1 Li Baolin 2, Shandong Gold Group Co., Ltd. Jiaojiajin Mine Dongcaiyang Shijiazhuang Pump Industry Group Co., Ltd., the sand pump in the metallurgical mine beneficiation process The key equipment of the art can be carried out normally, and the normal economic operation of the centrifugal sand pump has an important relationship with the selection. This paper adopts the simple selection method of the sand pump to select the sand pump of the 7th gold ore beneficiation system. The practical selection method with universal guiding significance in the metallurgical industry is put forward, especially for the selection of sand pump slurry pump in heavy working conditions.
1 sand pump selection method The two important parameters of the centrifugal sand pump are the flow rate and the lift. Because the slurry condition is different, the operation of the centrifugal pump is based on the characteristic curve of the pump. Therefore, the reasonable selection of the lift is sand. The key to pump selection.
The following is the relevant formula for the sand pump simple selection method. Art determined, 1.1 flow rate In order to prevent sedimentation, the flow rate is usually adopted by the Kev formula or the Durad formula. The formula is conservative. I recommend that the flow rate of the slurry in the metallurgical industry should be 2, such as 3 It is appropriate.
1.2 Heading Because the working conditions of solid-liquid two-phase flow vary widely, most of the coefficients in the calculation formula are empirical formulas, so it brings a lot of inconvenience to the user, and the calculation of the lift is the key to the normal operation of the sand pump. The following is a simple calculation formula. H clear water lift, claw pay geometric height difference, 1 H1 along the path resistance to convert the lift,

A&M Manufacturing Co.Ltd. focus on producing ferrous metal casting including ductile cast iron, Grey Iron Casting , Malleable Iron Casting , alloy iron casting. Among of them, Ductile Iron Casting is one of main type of ferrous metal casting.Adopting resin Sand Casting process, shell molded casting process and Lost Foam Casting process, it has the experience to produce ductile iron casting in a wide range of applications , including automotive industry, railway parts, pumps and valves, municipal construction, pipeline system, engineering machinery, hydraulic system and so on.

The normal type of ductile iron casting produced by us is the following:

DIN 1693 standard:GGG-40, GGG-40.3, GGG-50, GGG-60, GGG-70, GGG-80

ASTM A536 standard:60-40-18, 65-45-12,65-45-12,80-55-06,100-70-03,120-90-02.

Also we have the enough experience of producing Austempered Ductile Iron Casting, austenitic nodular iron.

There are diverse ways to describe the Ductile Iron Castings,  such as – Ductile Iron, Ductile Cast Iron, SG, SG Iron, Spheroidal Graphite and Spheroidal Graphite Cast Iron etc., all of them can be used and interchangeable.

Ductile Iron Casting

Precision Casting Parts,Precision Casting,Ductile Iron Grey Iron Sand Casting,Ductile Iron Casting

A&M Manufacturing Co.Ltd. , https://www.am-casting.com