红领巾瓜报组的紧固件组装是非常重要的一个环节，如果开始没有装好，后续可能会非常多的问题。今天小编为大家介绍一下发电机组紧固件组装的具体注意事项，希望对大家有帮助。

The fastener assembly of biogas generator unit is a very important part. If it is not installed at the beginning, there may be many problems left in the future. Today, I would like to introduce the specific precautions for the assembly of generator set fasteners. I hope it will help you.

1.气缸盖螺母的组装

1. Assembly of cylinder head nuts

拧紧气缸盖螺母时，应分数次逐步拧紧到规定的力矩，并按先中间、后两边、对角交叉的原则进行拆缸时也应按规定顺序逐步拧松。若气缸盖螺母拧紧得不均匀或不平衡，会引起缸盖平面翘曲变形。若螺母拧得过紧，螺栓会拉伸变形，机体和螺纹也会受到损坏。若螺母拧得不够紧，会造成气缸漏气、漏水、漏油，气缸内的高温气体也会烧坏气缸垫。

When tightening the cylinder head nuts, they should be gradually tightened to the specified torque several times, and the cylinder removal should also be gradually loosened according to the specified sequence according to the principle of first middle, then two sides and diagonal crossing. If the cylinder head nuts are tightened unevenly or unevenly, the cylinder head plane will be warped and deformed. If the nut is tightened too tightly, the bolt will be stretched and deformed, and the body and thread will also be damaged. If the nut is not tightened enough, it will cause air, water and oil leakage in the cylinder, and the high-temperature gas in the cylinder will also burn the cylinder gasket.

2.飞轮螺母的组装

2. Assembly of flywheel nut

安装时飞轮螺母必须拧紧，并用止推垫圈折边锁紧。如果飞轮螺母拧得不紧，机工作时，会产生敲击声，严重时会损坏曲轴锥面，剪裂键槽，扭断曲轴，造成严重事故。另外还要注意止推垫圈的角只能扳折一次。

During installation, the flywheel nut must be tightened and locked with thrust washer. If the flywheel nut is not tightened tightly, there will be a knocking sound when the machine is working, which will damage the crankshaft cone, cut the keyway, and break the crankshaft, causing serious accidents. Also note that the angle of the thrust washer can only be broken once.

3.连杆螺栓的组装

3. Assembly of connecting rod bolts

用优质钢材加工的连杆螺栓在工作中承受很大冲击力，不能用普通螺栓代替。拧紧时扭力要均匀，两根连杆螺栓要轮流分几次逐步拧紧到规定力矩，后用镀锌铁丝锁紧。若连杆螺栓扭紧力矩过大，会使螺栓拉伸变形甚至折断，引起捣缸事故;若连杆螺栓拧紧力矩过小，轴瓦间隙增大，工作时产生敲击声和冲击载荷，甚至发生烧瓦抱轴及连杆螺栓折断事故。

Connecting rod bolts made of high-quality steel bear great impact force during work and cannot be replaced by ordinary bolts. When tightening, the torque should be uniform. The two connecting rod bolts should be tightened gradually to the specified torque several times in turn, and then locked with galvanized iron wire. If the tightening torque of the connecting rod bolt is too large, the bolt will be stretched and deformed or even broken, causing the cylinder tamping accident; If the tightening torque of the connecting rod bolt is too small, the clearance of the bearing bush will increase, resulting in knocking sound and impact load during operation, and even the accident of burning the bearing bush and holding the shaft and breaking the connecting rod bolt.

4.主轴承螺栓的组装

4. Assembly of main bearing bolts

应保证主轴承的安装精度，且不松动。拧紧主轴承螺栓时，5道主轴承应按照先中间，后2、4道，再1、5道的顺序，分2～3次均匀拧紧到规定的力矩。每拧紧一道还应检查一次曲轴转动是否正常。主轴承螺栓拧紧力矩过大或过小所产生的危害，与连杆螺栓拧紧力矩过大或过小所产生的危害基本相同。

The installation accuracy of the main bearing shall be guaranteed without looseness. When tightening the main bearing bolts, the five main bearings should be tightened evenly to the specified torque in 2-3 times in the sequence of first middle, then 2 and 4, then 1 and 5. Check whether the crankshaft rotates normally after each tightening. The harm caused by excessive or too small tightening torque of main bearing bolts is basically the same as that caused by excessive or too small tightening torque of connecting rod bolts.

5.平衡块螺栓的组装

5. Assembly of balance weight bolts

平衡块螺栓安装时应按顺序，分几次逐步拧紧到规定力矩。平衡块应按原位装复，否则会失去平衡作用。

When installing the balance weight bolts, tighten them gradually to the specified torque in sequence and several times. The balance weight shall be reinstalled in situ, otherwise it will lose its balance function.

6.摇臂座螺母的组装

6. Assembly of rocker arm seat nut

对于摇臂座螺母，在使用过程中要结合保养经常定期检查。如果摇臂座螺母松动，会使气门间隙增大，气门开启延后，关闭提前，气门开启延续时间缩短，引起机供气不足，排气不净，功率下降，油耗增加。

The rocker arm seat nut should be regularly checked in combination with maintenance during use. If the rocker arm seat nut is loose, the valve clearance will increase, the valve opening will be delayed, the valve closing will be advanced, and the valve opening duration will be shortened, resulting in insufficient air supply, dirty exhaust, reduced power, and increased fuel consumption.

7.喷油嘴锁紧螺母的组装

7. Assembly of fuel injector locknut

在安装喷油器时，其锁紧螺母应拧紧到规定的力矩。同时，好反复拧紧几次，不要一次拧紧。若喷油嘴锁紧螺母拧得过紧，会引起锁紧螺母变形，还易使针阀卡死;若拧得过松，会引起喷油器漏油，喷油压力下降，雾化不良，油耗增加。

When installing the fuel injector, its lock nut should be tightened to the specified torque. At the same time, tighten it several times, not once. If the locknut of the fuel injection nozzle is tightened too tightly, the locknut will be deformed and the needle valve will be easily blocked; If the screw is too loose, the fuel injector will leak oil, the injection pressure will drop, the atomization will be poor, and the fuel consumption will increase.

8.出油阀紧座的组装

8. Assembly of tight seat of oil outlet valve

安装喷油泵的出油阀紧座时，也要按规定扭矩进行。若出油阀紧座拧得过紧，会使柱塞套筒变形，柱塞在套筒中发生阻滞现象.并引起柱塞偶件早期磨损，密封性能下降，功率不足;若出油阀紧座过松，会引起喷油泵漏油，不能建立油压，供油时间滞后，供油量减少，严重影响发动机工作性能。

When installing the tight seat of the fuel delivery valve of the fuel injection pump, the specified torque should also be followed. If the tight seat of the outlet valve is tightened too tightly, the plunger sleeve will be deformed, the plunger will be blocked in the sleeve, and the plunger coupling will be worn early, the sealing performance will be reduced, and the power will be insufficient; If the tight seat of the fuel outlet valve is too loose, the fuel injection pump will leak oil, the oil pressure cannot be established, the fuel supply time will lag, the fuel supply quantity will be reduced, and the engine performance will be seriously affected.

9.喷油器压板螺母的组装

9. Assembly of pressure plate nut of fuel injector

在机气缸盖上安装喷油器总成时，除了注意清除喷油器总成安装座内积炭等脏物、喷油器总成压板别装反、钢垫厚度要适当且不能漏装外，还要注意喷油器总成压板螺母的紧固力矩。若压板螺母紧固力矩过大，会造成喷油器阀体变形，导致喷油嘴卡死，机无法工作;若拧紧力矩过小，喷油器会漏气，造成气缸压力不足，机启动困难，高温气体还会冲出烧坏喷油嘴。另外，分配泵滑片转子、分配泵外壳上的高压油管接头安装时，也簧按规定力矩进行。

When installing the fuel injector assembly on the engine cylinder head, pay attention to the tightening torque of the pressure plate nut of the fuel injector assembly, in addition to removing the dirt such as carbon deposit in the mounting base of the fuel injector assembly, installing the pressure plate of the fuel injector assembly in a wrong way, and installing the steel pad in a proper thickness. If the tightening torque of the pressing plate nut is too large, the valve body of the fuel injector will be deformed, causing the fuel injector to be stuck and the machine cannot work; If the tightening torque is too small, the fuel injector will leak, resulting in insufficient cylinder pressure, difficulty in starting the engine, and high temperature gas will rush out and burn the fuel injector. In addition, when installing the high pressure oil pipe joint on the distribution pump sliding vane rotor and the distribution pump housing, the spring should also be installed according to the specified torque.

对于发电机组的紧固件安装小编就为大家介绍到这里了，这里小编提醒各位，如果您对安装不是很了解，请一定要找专门的安装师傅来帮忙安装，负责在以后的运行中可能会出现各种不必要的麻烦。更多相关事项就来我们网站咨询吧！

This is the brief introduction of the fastener installation of the generator set. Here, the brief introduction reminds you that if you don't know much about the installation, please find a special installation technician to help you with the installation, which may cause various unnecessary troubles in the future operation. Come to our website for more relevant matters Ask!