The failure protection and maintenance requirements of the plum blossom type coupling are low, which can improve the service life of the entire equipment. A simple and effective technical means to solve the vibration and noise of the power device by installing it in the shaft system of the tower mill can be used to adjust the torsional vibration characteristics of the transmission device shaft system, compensate for the displacement of the main and secondary machine axes caused by vibration and impact, and continuously transmit torque. Oil seeps or drips outward from the oil baffle of the bearing seat, causing oil stains on the base and surrounding areas of the bearing seat, and even dripping onto the insulation layer of the front cylinder or steam pipeline, which may cause a fire. Due to the fact that the shaft sleeve and gear sleeve are connected in an evenly divided and mutually meshed manner, with elastic blocks in the middle for buffering, the machining accuracy can be guaranteed. The forces on each tooth and elastic block are relatively uniform, and the overall stress on the gear sleeve, shaft sleeve, and elastic block is not large, far lower than the bending value of the material, meeting the strength design requirements. The plum blossom type elastic coupling has a large torque transmission ability and strong absorption of misalignment, which can eliminate the vibration, impact, and misalignment of the entire equipment No lubrication required, easy to install and disassemble. The plum blossom type coupling can operate in damp, gravel, high temperature, and other harsh environments.
The bearing seat and coupling guard vent pipe emit oil outwards, while the plum shaped coupling guard sheds and seeps oil outwards. The cause of oil leakage in the bearing seat and coupling guard and corresponding treatment measures. The reason for the oil leakage phenomenon at the exhaust pipe of the plum blossom type coupling guard is the negative pressure formed by the exhaust fan at the top of the oil tank, which did not establish a low negative pressure inside the bearing seat through the oil return pipeline. At the same time, under the action of the blowing effect, it caused the oil leakage phenomenon at the exhaust pipe. To solve this problem, strictly follow the requirements, When installing the oil return pipeline, it is necessary to maintain a certain inclination angle to ensure smooth oil return. At the same time, it is recommended to connect a pipeline to connect the bearing box and the upper chamber of the oil tank according to the actual situation. This way, the negative pressure formed by the exhaust fan in the oil tank directly acts on the bearing seat, ensuring a slight negative pressure inside the bearing seat. At the same time, it can also remove some oil fumes, fundamentally solving the problem of oil leakage here. The phenomenon of oil leakage at the exhaust pipe of the plum blossom type coupling guard is also caused by air blowing, which is particularly prone to occur on high-speed steam turbine units. Oil leakage only occurs at the exhaust pipe of the plum blossom type coupling guard, exacerbating the movement of internal airflow, thereby increasing the density of oil smoke and causing serious oil leakage at the exhaust pipe.
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