The forklift universal transmission device is mainly used for the power transmission between the two axes that do not coincide, and when the electric pallet truck
is running, the relative position of the shaft is constantly changing. Used in forklifts with heavy loads (such as CPCD50, 5CQN), the connection between the transmission and the drive axle, and the connection between the forklift engine and the oil pump. Forklift universal transmission device is composed of universal joint fork, cross shaft assembly, etc., and its function is to transmit the transmission power to the final reducer. The transmission shaft transmits large torque, high speed, and heavy work. Therefore, although its structure is not complicated, the technical requirements are very high. Otherwise, chattering, noise, falling off and broken shafts will occur. Forklift truck universal transmission device should not be tight or open, the bolts are complete and fastened, the assembly angle is correct, the lubrication is good, there should be no jitter or abnormal noise during driving. Therefore, in the use of forklifts, the drive shaft should be carefully maintained, and problems must be dealt with in time. When an electric pallet truck is running, the drive shaft has to withstand high torque and impact load, and rotate at a high speed. Accompanied by constant vibration, its lubrication condition is poor, so it is prone to wear, deformation and damage, which will cause malfunction and abnormalities. Faults such as ringing and chattering. When the forklift starts, if the vehicle body trembles, it will be accompanied by a 'grid. Grid' impact; a periodic noise of the chassis can be heard during driving. The faster the speed, the louder the sound. In severe cases, the cab vibrates, holding the steering wheel, and the hand feels numb. The reasons are: the universal joint cross shaft and the roller needle are worn loose or the roller needle is broken; the fixing screws of each connection part are loose. The transmission shaft is bent and deformed. When encountering the above failures, you can go to the bottom of the car to check whether the connecting screws are loose, and shake the drive shaft with your hand to detect the worn parts; set up the rear wheel, rotate it in gear, and observe the vibration and abnormal noise of the drive shaft ; It can also be used to detect the deformation of the transmission shaft with the dial indicator for the vehicle, and repair them separately after finding out the cause. Once the dynamic balance of the drive shaft assembly is broken, it will be subjected to additional dynamic load caused by centrifugal force during work, which is prone to bending and deformation, causing vibration and noise of the drive shaft, increasing the dynamic load, reducing the transmission efficiency, and accelerating the damage of the parts. Accidental impact of the drive shaft during use, knocking deformation during disassembly and assembly, damage to the mutual position accuracy of the parts after surfacing, etc. will cause the rotating mass center of the drive shaft assembly to deviate from the rotation axis and destroy its balance performance. During maintenance, add grease to the cross bearing; when checking whether the cross bearing is loose, put the transmission in neutral, loosen the parking brake, hold the transmission shaft tube tightly with both hands, and rotate sharply left and right, there should be no obvious If necessary, remove it and repair it. When the drive shaft is maintained, check whether the fasteners are firmly fixed, the appearance and curvature of the drive shaft, and repair it if necessary. Before the drive shaft is repaired and assembled, its parts must be cleaned, especially the oil passages, journals and needle bearings of the cross shaft, which should be washed with clean kerosene and dried with compressed air. Coat the mating surface with grease and install it after matching the marks. After the universal joint is installed and restored, it should be able to rotate flexibly without obvious gaps, and there should be no card issuing. The CPCD50 forklift gearbox and the drive axle are connected by a drive shaft. This type of forklift drive shaft is composed of flange forks, universal joints, cross shafts and bearings. The cross shaft is equipped with a lubricating oil cup, which can be filled with lubricating oil to lubricate the bearings. When the cross shaft produces an excessive gap in the needle bearing, the transmission pump should be disassembled, and the cross shaft or needle bearing should be replaced according to the wear condition (must be replaced in pairs). Lithium-based grease should be used for bearing lubrication. It is absolutely forbidden to use thicker grease (such as calcium-based grease) for lubrication, because the use of thick oil will accelerate the wear of the bearing or the cross shaft.
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