沼氣發(fā)電機組的緊固件組裝是非常重要的一個環(huán)節(jié)，如果開始沒有裝好，后續(xù)可能會非常多的問題。今天小編為大家介紹一下發(fā)電機組緊固件組裝的具體注意事項，希望對大家有幫助。

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.氣缸蓋螺母的組裝

1. Assembly of cylinder head nuts

擰緊氣缸蓋螺母時，應分數(shù)次逐步擰緊到規(guī)定的力矩，并按先中間、后兩邊、對角交叉的原則進行拆缸時也應按規(guī)定順序逐步擰松。若氣缸蓋螺母擰緊得不均勻或不平衡，會引起缸蓋平面翹曲變形。若螺母擰得過緊，螺栓會拉伸變形，機體和螺紋也會受到損壞。若螺母擰得不夠緊，會造成氣缸漏氣、漏水、漏油，氣缸內(nèi)的高溫氣體也會燒壞氣缸墊。

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.飛輪螺母的組裝

2. Assembly of flywheel nut

安裝時飛輪螺母必須擰緊，并用止推墊圈折邊鎖緊。如果飛輪螺母擰得不緊，機工作時，會產(chǎn)生敲擊聲，嚴重時會損壞曲軸錐面，剪裂鍵槽，扭斷曲軸，造成嚴重事故。另外還要注意止推墊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.連桿螺栓的組裝

3. Assembly of connecting rod bolts

用優(yōu)質(zhì)鋼材加工的連桿螺栓在工作中承受很大沖擊力，不能用普通螺栓代替。擰緊時扭力要均勻，兩根連桿螺栓要輪流分幾次逐步擰緊到規(guī)定力矩，后用鍍鋅鐵絲鎖緊。若連桿螺栓扭緊力矩過大，會使螺栓拉伸變形甚至折斷，引起搗缸事故;若連桿螺栓擰緊力矩過小，軸瓦間隙增大，工作時產(chǎn)生敲擊聲和沖擊載荷，甚至發(fā)生燒瓦抱軸及連桿螺栓折斷事故。

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.主軸承螺栓的組裝

4. Assembly of main bearing bolts

應保證主軸承的安裝精度，且不松動。擰緊主軸承螺栓時，5道主軸承應按照先中間，后2、4道，再1、5道的順序，分2～3次均勻擰緊到規(guī)定的力矩。每擰緊一道還應檢查一次曲軸轉(zhuǎn)動是否正常。主軸承螺栓擰緊力矩過大或過小所產(chǎn)生的危害，與連桿螺栓擰緊力矩過大或過小所產(chǎn)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.平衡塊螺栓的組裝

5. Assembly of balance weight bolts

平衡塊螺栓安裝時應按順序，分幾次逐步擰緊到規(guī)定力矩。平衡塊應按原位裝復，否則會失去平衡作用。

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.搖臂座螺母的組裝

6. Assembly of rocker arm seat nut

對于搖臂座螺母，在使用過程中要結(jié)合保養(yǎng)經(jīng)常定期檢查。如果搖臂座螺母松動，會使氣門間隙增大，氣門開啟延后，關(guān)閉提前，氣門開啟延續(xù)時間縮短，引起機供氣不足，排氣不凈，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.噴油嘴鎖緊螺母的組裝

7. Assembly of fuel injector locknut

在安裝噴油器時，其鎖緊螺母應擰緊到規(guī)定的力矩。同時，好反復擰緊幾次，不要一次擰緊。若噴油嘴鎖緊螺母擰得過緊，會引起鎖緊螺母變形，還易使針閥卡死;若擰得過松，會引起噴油器漏油，噴油壓力下降，霧化不良，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.出油閥緊座的組裝

8. Assembly of tight seat of oil outlet valve

安裝噴油泵的出油閥緊座時，也要按規(guī)定扭矩進行。若出油閥緊座擰得過緊，會使柱塞套筒變形，柱塞在套筒中發(fā)生阻滯現(xiàn)象.并引起柱塞偶件早期磨損，密封性能下降，功率不足;若出油閥緊座過松，會引起噴油泵漏油，不能建立油壓，供油時間滯后，供油量減少，嚴重影響發(fā)動機工作性能。

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.噴油器壓板螺母的組裝

9. Assembly of pressure plate nut of fuel injector

在機氣缸蓋上安裝噴油器總成時，除了注意清除噴油器總成安裝座內(nèi)積炭等臟物、噴油器總成壓板別裝反、鋼墊厚度要適當且不能漏裝外，還要注意噴油器總成壓板螺母的緊固力矩。若壓板螺母緊固力矩過大，會造成噴油器閥體變形，導致噴油嘴卡死，機無法工作;若擰緊力矩過小，噴油器會漏氣，造成氣缸壓力不足，機啟動困難，高溫氣體還會沖出燒壞噴油嘴。另外，分配泵滑片轉(zhuǎn)子、分配泵外殼上的高壓油管接頭安裝時，也簧按規(guī)定力矩進行。

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.

關(guān)于發(fā)電機組的緊固件安裝小編就為大家介紹到這里了，這里小編提醒各位，如果您對安裝不是很了解，請一定要找專門的安裝師傅來幫忙安裝，負責在以后的運行中可能會出現(xiàn)各種不必要的麻煩。更多相關(guān)事項就來我們網(wǎng)站http://www.hdlelisa.com咨詢吧！

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 http://www.hdlelisa.com Ask!