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Universal driving device for forklift
Forklift universal transmission device should not tight not open, bolt fastening assembly complete, right angle, good lubrication, driving without jitter, abnormal sound. Therefore, in the use of forklifts, should seriously do the maintenance of the transmission shaft, found that the problem must be dealt with in a timely manner.
Forklift driving, the drive shaft must withstand torque and impact load, at the same time for high speed rotation, with the continuous vibration, the lubrication condition is bad, so prone to wear, deformation and damage, which will work out of the abnormal sound and chattering fault. Forklift start, if the body trembling with the grid. The impact of the grid, the sound of the chassis can also hear a periodic sound, the faster the sound. Seriously, the cab vibration, holding the steering wheel, hand numbness. The reasons are: the cardan shaft and the needle roller wear loose or broken; the connecting screw loose parts. Transmission shaft bending deformation. Meet the above fault, to check the bottom connecting screws loose, shaking hands and drive shaft, which can detect the wear parts; the rear wheels, gear set rotation, considerable drive shaft vibration and abnormal sound check; can also dial gague vehicle transmission shaft deformation, identify the reasons, respectively. To be repaired.
Drive shaft assembly dynamic balance once damaged, additional dynamic load at work caused by the centrifugal force, easy deformation, vibration and noise caused by the transmission shaft, the dynamic load increases, the transmission efficiency decline, accelerated the damage of parts. In the use of the transmission shaft accidental impact, disassembly and percussion, deformation of the parts after welding, and other parts of the accuracy of the damage, etc., will make the transmission shaft assembly of the rotation of the center of mass deviation from the axis of rotation, the destruction of its balance.
Maintenance, to cross bearing grease; cross check bearings with or without looseness, the transmission is neutral, release parking brake, hold the transmission shaft tube, or forcibly turn sharply, there should be no obvious Songkuang, if necessary, remove the breakdown repair. The transmission shaft is also necessary to check whether the fastener is fixed, the drive shaft appearance and curvature, if necessary, repair.
The drive shaft maintenance before the assembly, must be the components clean, especially C type steel equipment oil road, shaft neck and needle roller bearings, etc., are advised to clean kerosene wash and dry with compressed air. The mating surface is coated with grease. Universal joint after the installation, should be flexible and no obvious gap, there can be no card phenomenon.
The transmission shaft is connected between the CPCD50 forklift gearbox and the drive axle. This type of forklift transmission shaft is composed of flange fork, universal joint, cross shaft and bearings, the cross shaft is provided with a lubricating oil, which can be injected into the lubricating oil, the lubrication of the bearing. When the cross shaft of the needle roller bearing in excessive clearance, should be opened to drive pumping, wear and replace the cross shaft or needle roller bearings according to (must be replaced in pairs). Lithium based grease should be used for bearing lubrication. It is strictly forbidden to use a thick grease, such as a calcium base grease, because the use of heavy oil will accelerate the wear of the bearing or the cross shaft.
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