行業資訊

挖掘機工作無力主要有兩點原因

來源：http://m.shainiao.com.cn/ 日期：2022-11-28

挖掘機工作量非常的大若不及時保養就可能出現各種故障，下面濟南挖掘機租賃廠家對挖掘機工作無力的問題做一個分析：

If the excavator is not maintained in time, various failures may occur. The following is an analysis of the excavator's inability:

（一）發動機功率足夠，運轉正常，而挖掘機作業速度緩慢，挖掘無力。

（1） The engine has sufficient power and operates normally, while the excavator operates slowly and is unable to excavate.

挖掘機的液壓泵多為變量柱塞泵，工作一定時間以后，泵內部零件不可避免的產生磨損，造成內漏，各參數數據不協調，導致流量不足、油溫過高，速度緩慢，不能建立起高壓，所以動作緩慢無力。對于這類問題須卸下液壓泵進行數據測量，確認問題所在，更換不能繼續使用的配件，或修復可以繼續使用的配件，重新組裝后上校驗臺調試，匹配各回路參數(壓力、流量、功率及變量等)。

The hydraulic pumps of excavators are mostly variable piston pumps. After a certain period of operation, the internal parts of the pump will inevitably wear, causing internal leakage. The data of various parameters are not coordinated, resulting in insufficient flow, high oil temperature, slow speed, and failure to establish high pressure, so the action is slow and ineffective. For such problems, it is necessary to remove the hydraulic pump for data measurement, confirm the problem, replace the parts that can no longer be used, or repair the parts that can continue to be used. After reassembly, perform bench testing and debugging, and match the parameters of each circuit (pressure, flow, power, variable, etc.).

挖掘機上一個重要液壓元件－多路分配閥，上面有主安全閥、二次閥、溢流閥、補油閥等。若這些閥所設定的壓力達不到標準壓力則導致挖掘無力。

An important hydraulic component on the excavator, the multi way distribution valve, has a main safety valve, a secondary valve, an overflow valve, a makeup valve, etc. If the pressure set by these valves does not reach the standard pressure, the excavation will be weak.

另外，若閥桿與閥孔之間因為磨損而間隙過大，閥桿回位不完全、換向不到位，則大量內漏，導致流量不足，速度緩慢。

In addition, if the clearance between the valve stem and the valve hole is too large due to wear, the valve stem return is incomplete and the direction of rotation is not in place, a large amount of internal leakage will occur, resulting in insufficient flow and slow speed.
濟南挖掘機租賃

此類問題，應當卸下多路分配閥，送到實驗臺進行調試，重新設定所有閥的壓力至標準壓力，消除閥桿與閥孔之間的間隙即可。

For such problems, the multi way distribution valve should be removed and sent to the test bench for debugging, and the pressure of all valves should be reset to the standard pressure to eliminate the gap between the valve stem and the valve hole.

（二）冷機時一切正常，熱機時動作緩慢，挖掘無力。

（2） Everything is normal when the engine is cold, but the action is slow when the engine is hot, and the excavation is weak.

出現這樣的問題表明液壓泵內部配件磨損嚴重，須更換泵內易損件，并重新組裝、上調試臺校驗調試。

The occurrence of such a problem indicates that the internal accessories of the hydraulic pump are seriously worn. The wearing parts in the pump must be replaced, and the test bench shall be reassembled and adjusted for calibration and commissioning.

挖掘機整機出現工作緩慢無力現象的另一個主要原因是液壓油變質，因此，要注意監控液壓油油質(粘度，流動性及有無懸浮物等)，按時更換符合規定的液壓油，就能很大程度上避免此類故障的發生。

Another main reason for the slow and weak operation of the excavator is the deterioration of the hydraulic oil. Therefore, we should pay attention to monitoring the quality of the hydraulic oil (viscosity, fluidity and whether there are suspended solids, etc.), and replace the hydraulic oil that meets the requirements on time, which can largely avoid such failures.

挖掘機工作無力主要有兩點原因便是以上所講解的內容了，您對此有什么想咨詢了解的內容就來我們網站http://m.shainiao.com.cn看看吧！

There are two main reasons for the excavator's inability to work, which are explained above. If you want to know anything about this, please come to our website http://m.shainiao.com.cn Look!

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