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The engine How should the maintenance
2013-03-25
The engine is the core components for construction machinery, construction machinery engine maintenance and repair work to enhance the life of service quality. This article discusses the considerations of mechanical engine in the day-to-day use of the process, focus on engineering construction site, construction machinery engine maintenance and mai... The engine is the core components for construction machinery, construction machinery engine maintenance and repair work to enhance the life of service quality. This article discusses the considerations of mechanical engine in the day-to-day use of the process, focus on engineering construction site, construction machinery engine maintenance and maintenance measures, to strengthen the maintenance of construction machinery engine has a certain significance. Engineering machinery work environment is generally poor, common occurrences cause engine damage due to lack of maintenance, illegal operation and human factors such as the engine in actual use, resulting in large economic losses, but also affect the normal use of construction machinery. Therefore, it is necessary to the proper use and timely maintenance, engine maintenance. Except normal maintenance and upkeep must be done "Sanqin": "ground look at the ground to listen handling touch". Particular attention to the following points: Prime Minister, by listening to the abnormal sound of the engine to determine engine failure. The engine parts will be issued in the normal the various abnormal sound, if found to be timely. There is a sound Special attention should be: when the engine is running, when the crankcase has a larger metal parts percussion, then the large gap between the rod bearing and crankshaft or connecting rod small end of the copper sleeve and the connecting rod larger gap between copper sleeve piston pin. Must stop immediately, otherwise will lead to the rod breakdown cylinder accidents resulting in serious consequences scrapped by the switchboard. Engine water filter, be sure to be on time to replace the water filter. Because such an engine cylinder wall is thinner, the dust filter containing an active substance, the pH value of the cooling fluid can be adjusted to ensure that the corrosion resistance of the cooling liquid. Used because they do not use the industrial water filters and cause wear of the cylinder rust instance. Third, the engine is not running, flywheel pry generally judged to fall into the bush-burning or valve cylinder piston top dead. Another factor, it should be noted that the flywheel or gearbox foreign body stuck. There was a crane encountered this situation, after checking found between the flywheel and flywheel housing fell into the the fixed flywheel housing with a nut is stuck; There are too full hydraulic paver the gearbox bearing roller card live instance. If such problems without the engine disintegration of inspection. Fourth, when the engine temperature is too high, remember not to turn off immediately stop the operation, which will cause the engine to "stick cylinder" accident, seriously affecting the normal operation of the engine will also shorten the life of the engine; When the engine temperature is too low, remember high-speed operation, which will accelerate the wear of the engine will also seriously affect the life of the engine. Similarly, the construction site environment harsh, mechanical construction works at the project site, it must attach importance to the conservation of the engine, specifically, can be strengthened from the following aspects of the construction site of construction machinery engine Maintenance: First, peacetime should pay attention to the maintenance work of the starter periodic magnetic switch, armature winding, armature shaft, the field winding, one-way clutch, bearings, commutator and brush overhaul, and remove the starter exist faults and hidden faults, to prevent the failure to expand, in order to ensure that the starter in good technical condition. Second, when the engine rotation difficult due to some trouble, or due to cold weather, the lower temperatures cause the engine to start when the resistance is too large, not forcibly starter drag engine start will not be available to increase the battery quantity especially series battery to start (unless special circumstances), must first identify the cause of the malfunction, or full warm-up, then use the starter to start the engine. Troubleshooting and then when the diesel engine three times in a row can not start, you should start to prevent damage to the starter and battery. Third, every time you start the engine, not eager to start traveling should carefully check that the engine is working properly, each instrument and the value is normal. Focus on checking the starter has been reset to stall and prevent the starter in the engine rotation speed operation is burned. In short, for the maintenance of the site construction engineering machinery engine maintenance, we must strictly enforce regular inspection, periodic testing, and strive to achieve fault early detection, early elimination to effectively improve the life of the engine of engineering machinery, engine maintenance must feel alone when you can not repair, the rule of thumb should seriously investigate and asked, comprehensive analysis of the structure, working principle and failure phenomena, the right remedy. Machine hand to ask to appear before the use of the engine in the fault, work and maintenance, failure prior to engine fault, any fault, what to exclude, but also asked some of the phenomena fault appears. The only way to shorten the time to repair, improve efficiency, reduce maintenance costs and truly ruled out engine failure, to achieve the purpose of maintenance. View Details
The principle of selection of water filters
2012-09-10
1, Import and Export Path:Principle, Sheung Shui, import and export filter diameter should not be less than the the matching pump inlet diameter general unanimously agreed import pipeline.2, Nominal pressure:Determined in accordance with the highest possible pressure of the filter pipe pressure rating of the filter.3, the choice of mesh holes:Main ... 1, Import and Export Path:Principle, Sheung Shui, import and export filter diameter should not be less than the the matching pump inlet diameter general unanimously agreed import pipeline.2, Nominal pressure:Determined in accordance with the highest possible pressure of the filter pipe pressure rating of the filter.3, the choice of mesh holes:Main the impurities particle size consider to be intercepted, according to media workflow process requirements. The particle size can be blocked by a variety of wire mesh check the following table "filter specifications.4, industrial water filters material:Water filter material generally choose the connection process piping material for different service conditions may be considered to select the cast iron, carbon steel, low alloy steel or stainless steel filter.5, the filter resistance loss calculationWater filter, and the nominal flow rate of the general calculation, the pressure loss is 0.52 ~ 1.2kpa   View Details
Industrial water filters design features
2012-08-29
Industrial water filters1, industrial water filters internal mechanical structure of the patented technology to achieve the true sense of the high-pressure backwash filter retention of impurities can be easily and thoroughly clean, clean no dead ends, flux attenuation to protect the filtration efficiency and long life.2, industrial water filters&nb... Industrial water filters1, industrial water filters internal mechanical structure of the patented technology to achieve the true sense of the high-pressure backwash filter retention of impurities can be easily and thoroughly clean, clean no dead ends, flux attenuation to protect the filtration efficiency and long life.2, industrial water filters uses 304,316 L stainless steel wedge filter, high strength, high precision, corrosion-resistant the highest filtration accuracy up to 25 microns.3, the water filters through its own search and contingency function, automatic backwash, water quality fluctuations can cope with an unstable, without human intervention., Water filters wearing of small, no supplies, low operation and maintenance costs, simple operation and management.5, run precise water filter backwash differential pressure time and time settings can be flexibly adjusted according to different sources of water and filtering accuracy.6, water filter backwash process, the individual (s) filter sequentially backwashing operation; ensure that filters are safety, efficient cleaning, and other filters will not be affected, continue filtering.7, industrial water filters using pneumatic drain valve, short duration backwash, backwash water consumption, environmentally friendly economy. Water filter structural design of reasonably compact, small footprint, flexible installation of mobile. View Details