德赢官网 | 官网登录首页 沼气发电机组的操作,如果连杆扭曲,这将改变活塞销的线和曲轴线的平行度和垂直度的气缸,活塞在气缸中间前后倾斜
In the operation of biogas generator set, if the connecting rod is twisted, it will change the parallelism and perpendicularity of the center line of piston pin and the cylinder of crankshaft center line. The piston will tilt back and forth in the middle of the cylinder and the clearance will cause eccentric wear of the piston connecting rod set. In the process of accelerating wear of components, the cylinder will be operated in biogas generator mode when it is severe. If the connecting rod is twisted, it will change the center line of piston pin and the cylinder of crankshaft The parallelism and perpendicularity of the center line of the cylinder and the front and back inclination and clearance of the piston in the middle of the cylinder lead to the eccentric wear of the piston connecting rod group. In the process of accelerating the wear of the components, the cylinder pulling will occur seriously. The following is the method to introduce the deformation of the test rod of the biogas generator set:
(1) After cleaning the piston, piston ring and cylinder, install the piston connecting rod without piston ring into the cylinder, and tighten the connecting rod bolts according to the specified torque.
(2) Turn the crankshaft several times so that the piston rod is free. The distance between the two sides of the connecting rod small end and the piston pin seat hole shall not be less than 1mm.
(3) Turn the crankshaft so that the piston is in the middle of the cylinder. Check that the clearance difference between the front and rear ends of the piston crown is not more than 0.10 mm. If it is more than 0.10 mm, the connecting rod is deformed. The clearance between the upper and lower stop points of the piston cylinder should be the same. If the gap between the upper and lower stop points increases gradually, the travel clearance of the piston in the middle position will vary greatly, and the direction of the reciprocating movement of the piston will also change, which indicates that there must be distortion of the connecting rod.
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