On the loader, the hydraulic oil not only plays an important role in transmitting power, but also plays other important roles such as lubrication. The temperature of the hydraulic oil directly affects the working performance of the loader. Next, the editor will tell you the reason why the hydraulic oil temperature of the loader is too high. I hope it will help you!

裝載機液壓油溫度過高的原因主要有以下七個方面：

There are seven main reasons for the high temperature of loader hydraulic oil:

1、散熱不良：

1. Poor heat dissipation:

散熱器表面沉積污物過厚將造成散熱、通風不良，致使油溫過高；液壓油箱中液面過低而使系統循環的油量不足，也會導致系統油溫過高。

Too thick dirt deposited on the radiator surface will cause poor heat dissipation and ventilation, resulting in high oil temperature; The liquid level in the hydraulic oil tank is too low to make the oil circulating in the system insufficient, which will also cause the system oil temperature to be too high.

2、液壓油牌號選用不當：

2. Improper selection of hydraulic oil grade:

液壓油牌號特別是油液黏度指標選用不當，將直接威脅到液壓系統的正常工作。所以只能選用特定的黏度范圍且黏度變化盡量小的液壓油。選擇液壓油時還應考慮具體的施工地域和季節，北方地區冬季施工應選用黏度較低的液壓油；夏季則應選用黏度較高的液壓油；對有明確規定用油標準的機器應嚴格按規定加注液壓油。

Improper selection of hydraulic oil grade, especially oil viscosity index, will directly threaten the normal operation of hydraulic system. Therefore, only hydraulic oil with specific viscosity range and small viscosity change can be selected. When selecting hydraulic oil, specific construction area and season shall also be considered. Hydraulic oil with low viscosity shall be selected for winter construction in northern areas; In summer, hydraulic oil with high viscosity should be selected; Hydraulic oil shall be filled in strict accordance with the regulations for machines with specified oil standards.

3、壓力調整不當：

3. Improper pressure adjustment:

系統壓力調整過高時，溢流閥就不能正常溢流降壓，造成內泄漏增加，致使系統油溫升高。對回油路上帶背壓閥的液壓系統，如果背壓閥調壓過高，也會因回油阻力過大而造成油溫過高。當回油濾芯堵塞或回油管路老化脫層時也將造成背壓偏高，增加油液流動時的壓力損失，造成油溫過高。

When the system pressure is adjusted too high, the overflow valve cannot normally overflow and depressurize, resulting in increased internal leakage and increased system oil temperature. For the hydraulic system with back pressure valve on the oil return circuit, if the pressure of the back pressure valve is too high, the oil temperature will be too high due to the excessive oil return resistance. When the oil return filter element is blocked or the oil return pipeline is aged and delaminated, the back pressure will also be high, which will increase the pressure loss when the oil flows and cause the oil temperature to be too high.

4、液壓泵吸空：

4. Suction of hydraulic pump:

液壓泵吸空使油液中混入空氣過多，在高壓作用下產生氣穴現象和液壓沖擊，并伴隨強烈振動和噪聲，致使系統油溫快速升高。造成液壓泵吸空的原因多數是由于進油濾芯或進油管阻塞所致。若油管連接處松動或先導泵、主液壓泵傳動軸油封破損，也會造成液壓泵吸空。

When the hydraulic pump is empty, too much air is mixed in the oil, and cavitation phenomenon and hydraulic shock are generated under high pressure, accompanied by strong vibration and noise, resulting in rapid increase of system oil temperature. Most of the reasons for the empty suction of the hydraulic pump are due to the blockage of the oil inlet filter element or the oil inlet pipe. If the oil pipe connection is loose or the oil seal of the drive shaft of the pilot pump and the main hydraulic pump is damaged, the hydraulic pump will also be empty.

5、內泄漏：

5. Internal leakage:

在能量傳遞過程中若內泄漏嚴重，將增加系統的容積損失，損失的能量轉化成熱能而造成系統油溫過高。若元件間隙過小，各相對運動件之間產生摩擦，也可使油溫升高；而間隙過大則泄漏嚴重。

In the process of energy transmission, if the internal leakage is serious, the volume loss of the system will be increased, and the lost energy will be converted into heat energy, which will cause the system oil temperature to be too high. If the element clearance is too small, friction will occur between the relative moving parts, which can also increase the oil temperature; And if the gap is too large, the leakage is serious.

6、元件磨損：

6. Component wear:

液壓系統中的元件嚴重磨損可造成系統油溫過高。系統中元件的很多部位都是靠間隙密封的，一旦這些液壓元件磨損，則會引起內泄漏增加，導致油溫升高，造成油液的黏度下降，繼而引起內泄漏進一步增加，造成油溫進一步升高，形成惡性循環。

Severe wear of components in the hydraulic system may cause the system oil temperature to be too high. Many parts of the components in the system are sealed by gaps. Once these hydraulic components are worn, it will cause an increase in internal leakage, resulting in an increase in oil temperature and a decrease in oil viscosity, which will further increase the internal leakage, further increase the oil temperature and form a vicious cycle.

7、液壓原件過緊產生摩擦也會導致油溫上升：

7. Friction caused by too tight hydraulic components will also cause the oil temperature to rise:

大家搞清楚了裝載機液壓油溫度過高原因，就可以在遇到液壓油溫度過高的時候進行原因分析，然后對癥下藥。

Once you understand the reason for the high temperature of the hydraulic oil of the loader, you can analyze the reason when you encounter the high temperature of the hydraulic oil, and then prescribe the right medicine.

以上就是為大家介紹的有關井下裝載機的詳細的介紹,希望對您有所幫助.如果您有什么疑問的話,歡迎聯系我們.我們將以專業的態度,為您提供服務http://www.tfnmusic.com

The above is the detailed introduction of the underground loader for you. I hope it will help you. If you have any questions, please contact us. We will provide you with services with a professional attitude http://www.tfnmusic.com