The MB series stepless speed variators, as a common power transmission mechanism, are widely applied in various mechanical transmission systems. Their installation and usage directly influence the operational results and must comply with relevant technical specifications and standards. Regarding the installation and test run of the MB stepless speed variators and the precautions during usage, the following several key points:
Firstly, when installing the MB stepless speed variator, great attention must be paid to the alignment of the transmission center axis. The alignment error must not exceed the compensation range of the coupling used for the MB stepless speed variator. Only after achieving precise alignment can a more ideal transmission effect be obtained and the service life be prolonged.
Secondly, when installing the transmission parts on the output shaft of the MB stepless speed variator, the operation must be gentle. It is strictly prohibited to install them violently by using tools such as hammers. The best way is to install by means of assembly fixtures and the internal thread of the end shaft, and press the transmission parts into the MB stepless speed variator by the force of screwing in the bolts. This can effectively ensure that the internal parts of the MB stepless speed variator remain intact.
Furthermore, various types of couplings can be selected for the MB stepless speed variator. However, the rigid fixed coupling is not an ideal choice. Such couplings are difficult to install. Once installed incorrectly, the load will increase, which is very likely to cause damage to the bearings and even may lead to the fracture of the output shaft.
Additionally, the test run time of the MB stepless speed variator should not be less than two hours. The standard for normal operation is: smooth running, no vibration, no noise, no leakage, and no shock. Once any abnormal situation occurs, it must be eliminated in a timely manner.
Also, the fixation of the MB stepless speed variator is of vital importance and must be ensured to be stable and firm. Generally speaking, it should be installed on a horizontal foundation or base, while ensuring that the oil in the oil drainage groove can be discharged smoothly and the cooling air circulation is unobstructed. If the MB stepless speed variator is not fixed well and the foundation is unreliable, it will cause problems such as vibration and cause unnecessary damage to the bearings and gears.
Moreover, when the transmission couplings of the MB stepless speed variator are in need, protective devices should be installed. For example, if there are protrusions on the couplings, or in cases such as gear or sprocket transmission. If the radial load on the output shaft is large, a reinforced type should be selected.
Finally, the installation position of the MB stepless speed variator should be convenient for the operation of the staff, including being able to easily access parts such as the vernier, the vent plug and the oil drain plug. After the installation of the MB stepless speed variator is completed, the inspectors should comprehensively check the accuracy of the installation position in sequence and confirm the reliability of each fastener, etc. Before the operation of the MB stepless speed variator, it is also necessary to do a good job of operation preparation. Remove the vent hole plug of the oil pool and replace it with a vent plug, open the oil level plug screw to check the oil level height, add lubricating oil until it overflows from the hole of the oil level plug screw, then screw on the oil level plug and confirm that it is correct before starting the test run.
