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Common scraper machine failure analysis

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Common scraper machine failure analysis

[Abstract]:
MotorFailureandAnalysisofMotorfailureisamorecommontypeofscraperleakagesense,tailtohavethreekindsofenvironment:themotorstartsfault,themotorovertheamountoffireinadditiontonight-timemotorsoundisnotthesam
Motor Failure and Analysis of
Motor failure is a more common type of scraper leakage sense, tail to have three kinds of environment: the motor starts fault, the motor over the amount of fire in addition to night-time motor sound is not the same as usual.
Motor starting fault is the end of the last notice is scraper machine load over night; the chain or some other components have a serious Jun stuck resistance voltage can not reach the rated for; line hidden bad reputation, the power supply is not the same as usual ; The composition of the voltage step-by-step capacity of the transformer is too sensitive to the night-time voltage drop; or there is no smoothing in the coal-mining work; it is also mostly caused by the failure of the motor itself.
Motor burn more than overnight, the motor fan stalls or the radiator is covered by a wide margin, the heat dissipation of the infarct = short time after the brake board machine has been shut down Qi, at a time when the overburden turns get confused; machine start frequency is still In addition to starting the current in the night, the fuse selected over night, the motor is starting to work less time under the current.
The motor sound is not the same as the usual notice is scraper machine in single-phase turn to get; the back load is too heavy; the terminal looming loosening, war is not good; shaft dampness; sheet help, roof fall will lose the machine.
Gear reducer failure and its causes analysis
There are three kinds of strange tail gear reducer example: reducer shell overheating; the sound is not as usual; reducer leakage.
Overheating reducer shell Analysis: reducer space step Juan allow, over or under oil injection; shaft Kai Yu dead or bad reputation or smooth results are good; reducer internal coverage wide, resulting in large heat dissipation better.
Leading to the end of the gearbox oil leakage to the end of the reducer rare Kai circle reputation bad, rare Kai performance degradation; reducer box to open the Department of rare open Kai wide, the shaft cap bolts screw loose no loose.
Scraper Chain Failure and Analysis of
1) scraper chain error
Lead to broken chain fault Tearing pro-more, the tail should have: scraper chain amount of material and the amount of manufacturing process can not be measured for quantity = The degree of control steps, too loose or too loose, or less the double circle of the chain did not open a; the chain of grinding benefits Jun, in a loose case; the chain is getting stuck in the North Ran suddenly stuck; drag chain Even the angle of the bolt Yu Ji picked up; coal mining workers do not have a smooth, straight convex convex wide Jun.
2) Scraper off Jiao Shun fault
Leakage scraper lead off Jiao Shun incident to the end of the incident are: the scraper machine nose color cavity is positive; two chains of loose water and chaos, scraping wide and steep slope; sprocket wear benefit aging or bite loose Debris, scraper sit chain out of the wheel; too straight open or scraper is too thin.
3) scraper flying chain failure
Scratch machine floating chain Analysis of the reasons: the transport aircraft are not flat, there is no straight, hidden target 燠 = comb board chain is too loose, squeeze the coal into the side of the chute = comb board chain is at the tip of the shovel = comb board chain too loose or mediation There is no compromise, the coal is chute side, scraper conveyor with the tilt will lead to loss of scraper chain down slot.
4) Scraper bottom chain out of the groove
Scratch machine bottom chain slot Analysis: scraper lose their own machine straight, tribute convex, too straight straight. Chute wide grinding benefits; two chains Tam Tam divergent composition of the scraper 阢 oblique or fruit scraper too straight Shake deer two chains of chain contraction.
Summary: Scratch the whole parts of the machine reputable damage Known as scraper machine is working under conditions of poor quality, the whole part of the consumption is too heavy, therefore, is the selection of scraper machine parts procurement time should be Sees the choice the quantity perfect product, in order to guarantee the smooth containment of the funeral workers.
Motor Failure and Analysis of
Motor failure is a more common type of scraper leakage sense, tail to have three kinds of environment: the motor starts fault, the motor over the amount of fire in addition to night-time motor sound is not the same as usual.
Motor starting fault is the end of the last notice is scraper machine load over night; the chain or some other components have a serious Jun stuck resistance voltage can not reach the rated for; line hidden bad reputation, the power supply is not the same as usual ; The composition of the voltage step-by-step capacity of the transformer is too sensitive to the voltage drop; or there is no smoothing in the coal-mining work;
The motor over the amount of overnight additions are mostly motor fan stall or heat sink cover wide Jun, bucket elevator cooling passion infarction = less comb brake machine has been shut down less than Qi, Frequent start-up of the machine, the starting current in addition to night, the fuse selected overnight, the motor is starting to work less time is starting. Telescopic belt machine
The motor sound is not the same as the usual notice is scraper machine in single-phase turn to get; the back load is too heavy; the terminal looming loosening, war is not good; shaft dampness; sheet help, roof fall will lose the machine.
Gear reducer failure and its causes analysis
There are three kinds of strange tail gear reducer example: reducer shell overheating; the sound is not as usual; reducer leakage.
Overheating reducer shell Analysis: reducer space step Juan allow, over or under oil injection; shaft Kai Yu dead or bad reputation or smooth results are good; reducer internal coverage wide, resulting in large heat dissipation better.
Leading to the end of the gearbox oil leakage to the end of the reducer rare Kai circle reputation bad, rare Kai performance degradation; reducer box to open the Department of rare open Kai wide, the shaft cap bolts screw loose no loose.
Scraper Chain Failure and Analysis of
1) scraper chain error
Lead to broken chain fault Tearing pro-more, the tail should have: scraper chain amount of material and the amount of manufacturing process can not be measured for quantity = The degree of control steps, too loose or too loose, or less the double circle of the chain did not open a; the chain of grinding benefits Jun, in a loose case; the chain is getting stuck in the North Ran suddenly stuck; drag chain Even the angle of the bolt Yu Ji picked up; coal mining workers do not have a smooth, straight convex convex wide Jun.
2) Scraper off Jiao Shun fault
Leakage scraper lead off Jiao Shun incident to the end of the incident are: the scraper machine nose color cavity is positive; two chains of loose water and chaos, scraping wide and steep slope; sprocket wear benefit aging or bite loose Debris, scraper sit chain out of the wheel; too straight open or scraper is too thin.
3) scraper flying chain failure
Scratch machine floating chain Analysis of the reasons: the transport aircraft are not flat, there is no straight, hidden target 燠 = comb board chain is too loose, squeeze the coal into the side of the chute = comb board chain is at the tip of the shovel = comb board chain too loose or mediation There is no compromise, the coal is chute side, scraper conveyor with the tilt will lead to loss of scraper chain down slot.
4) Scraper bottom chain out of the groove
Scratch machine bottom chain slot Analysis: scraper lose their own machine straight, tribute convex, too straight straight. Chute wide grinding benefits; two chains Tam Tam divergent composition of the scraper 阢 oblique or fruit scraper too straight Shake deer two chains of chain contraction.
Summary: Scratch the whole parts of the machine reputable damage Known as scraper machine is working under conditions of poor quality, the whole part of the consumption is too heavy, therefore, is the selection of scraper machine parts procurement time should be Sees the choice the quantity perfect product, in order to guarantee the smooth containment of the funeral workers.