How To Analyze And Deal With The Failure Of The Hydraulic Transmission System Of Rock Mucking Loading Machine？
mucking machine, rock mucking loader, tunnel mucking machine, mucking loading machine, rock mucking loading machine
During the operation of the mucking loading machine, its operation efficiency is often affected by the failure of the transmission system. Now, some typical faults and troubleshooting methods of the tunnel mucking machine，rock mucking loading machine transmission system are introduced as follows for the reference of the colleagues.
1. The first gear and reverse gear are normal, and the second gear has no driving force.
First check whether the shifting lever is in place, if it is not in place, readjust it. Then check whether the transmission pressure gauge is depressurized in the second gear position. If depressurization, you must check whether there is pressure oil flowing out of the periphery of the 8-shaped end cover of the gearbox. If there is leakage, you can tighten the surrounding bolts. The above method still cannot eliminate the fault, you must remove the figure-eight end cover, and replace the o-ring and paper gasket. If there is no pressure oil overflow at this time, it proves that there is a problem with the second gear member in the gearbox, and the second gear member must be removed. First check whether the external oil seal of the second gear is damaged, then disassemble the components of the second gear, take out the piston, and check whether the piston ring, oil seal ring and friction plate are damaged. Finally, check whether the guide pin in the second gear oil cylinder falls off. If the guide pin falls off, a large amount of pressure oil in the second gear will flow out from here, causing the pressure in the second gear to decrease and driving cannot be performed. For reasons of pressure drop, replace seals or repair or replace parts.
2. The speed change pressure, boom, bucket and steering are all normal, but the slag loader still cannot move forward or backward
Check whether there is oil shortage in the gearbox and whether the oil inlet line is blocked, and then check the gearbox oil pan and torque converter filter. If you find metal fragments.you can be sure that the internal parts of the large overrunning clutch in the gearbox are damaged. If aluminum chips are found in the gearbox oil pan and the torque converter filter, it is certain that the parts inside the torque converter are damaged. At this time, the gearbox and torque converter must be disassembled and inspected, and the damaged parts must be repaired and replaced. Excluding the above reasons, if the car still cannot travel, it can be determined that the bolts around the second gear member in the gearbox have been cut off, or the intermediate shaft output gear has fallen off, and the power cannot be output. Remedy: You can disassemble the 8-shaped end cover of the gearbox, take out the second gear component, and replace the cut bolts. The bolt material is 40Cr, which must be quenched and tempered, and can never be replaced by ordinary bolts.
3. Weak in first gear and reverse gear, slow driving in second gear
Check whether the pressure indicated by the variable speed pressure gauge is normal. If the pressure reaches 108KPa, increase the throttle to check whether the pointer of the pressure gauge is swinging; if it swings violently, it proves that the turbine oil in the gearbox is too dirty or the amount of oil is insufficient. Check the gearbox oil level check plug to see if the turbine oil can flow out . If there is oil flowing out, the fault is caused by too dirty oil, the gearbox and filter should be cleaned, and then replaced with new oil; if the amount of oil is normal and the transmission pressure gauge indicates normal, the fault may be the gearbox and torque converter The input secondary gear in the middle is broken, so that the power of the secondary gear of the torque converter cannot be output, and only the power of the primary gear can be output. Remedy: Remove the connection between the torque converter and the gearbox, and replace the damaged input secondary gear.
