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!

装载机液压油温度过高的原因主要有以下七个方面：

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

1、散热不良：

1. Poor heat dissipation:

散热器表面沉积污物过厚将造成散热、通风不良，致使油温过高；液压油箱中液面过低而使系统循环的油量不足，也会导致系统油温过高。

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、液压油牌号选用不当：

2. Improper selection of hydraulic oil grade:

液压油牌号特别是油液黏度指标选用不当，将直接威胁到液压系统的正常工作。所以只能选用特定的黏度范围且黏度变化尽量小的液压油。选择液压油时还应考虑具体的施工地域和季节，北方地区冬季施工应选用黏度较低的液压油；夏季则应选用黏度较高的液压油；对有明确规定用油标准的机器应严格按规定加注液压油。

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、压力调整不当：

3. Improper pressure adjustment:

系统压力调整过高时，溢流阀就不能正常溢流降压，造成内泄漏增加，致使系统油温升高。对回油路上带背压阀的液压系统，如果背压阀调压过高，也会因回油阻力过大而造成油温过高。当回油滤芯堵塞或回油管路老化脱层时也将造成背压偏高，增加油液流动时的压力损失，造成油温过高。

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、液压泵吸空：

4. Suction of hydraulic pump:

液压泵吸空使油液中混入空气过多，在高压作用下产生气穴现象和液压冲击，并伴随强烈振动和噪声，致使系统油温快速升高。造成液压泵吸空的原因多数是由于进油滤芯或进油管阻塞所致。若油管连接处松动或先导泵、主液压泵传动轴油封破损，也会造成液压泵吸空。

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、内泄漏：

5. Internal leakage:

在能量传递过程中若内泄漏严重，将增加系统的容积损失，损失的能量转化成热能而造成系统油温过高。若元件间隙过小，各相对运动件之间产生摩擦，也可使油温升高；而间隙过大则泄漏严重。

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、元件磨损：

6. Component wear:

液压系统中的元件严重磨损可造成系统油温过高。系统中元件的很多部位都是靠间隙密封的，一旦这些液压元件磨损，则会引起内泄漏增加，导致油温升高，造成油液的黏度下降，继而引起内泄漏进一步增加，造成油温进一步升高，形成恶性循环。

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、液压原件过紧产生摩擦也会导致油温上升：

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

大家搞清楚了装载机液压油温度过高原因，就可以在遇到液压油温度过高的时候进行原因分析，然后对症下药。

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.

以上就是为大家介绍的有关井下装载机的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以的态度,为您提供服务http://www.kuangjingjixie.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.kuangjingjixie.com