Sweden Hegron hydraulic motor There are three factors affecting the leakage of hydraulic oil from the cover of the main shaft

The first factor is:

The motor's rotating oil and plastic material are aging. There are two factors for the aging of plastic material. - It is the aging factor. The seal ring has operated for more than 4 years

The second reason is that environmental factors lead to the loss of sealing power of materials, and the primary factor for aging of such plastic materials is Hydraulic motor Long term outdoor natural environment

Or the rotating seal ring made of Jqing material cannot be selected for the hydraulic motor rotating seal running in the natural environment in the suburb with high light temperature! The rotating seal made of fluororubber must be selected

The fluororubber has obvious high temperature resistance (200~250 ° C) and oil resistance. The rotating nozzle sealing ring of fluororubber can significantly improve the service time.

The second factor is:

The hydraulic motor has not undergone maintenance for a long time, which causes friction damage to the friction pairs inside the motor, resulting in clearance flow (clearance working pressure overflow

The working pressure of the hydraulic oil in the housing is high due to the excessive value (pressure application). The stainless steel material on the main shaft of the holding brake hydraulic motor with too tight lip is resistant to

The metal surface of the shaft diameter of the grinding ring and the anti-wear ring is polished into a groove by the lip of the rotary seal. At the same time, the rotary seal lip [] also grinds off the whole ring (the internal diameter of the rotary seal ring increases), and the rotation is tight

The sealing force is lost, and the final result is that the hydraulic oil in the housing leaks out from the lip of the rotating seal ring to the surface of the anti-wear ring

Before and after the clock, the primary purpose of the maintenance is to adjust the clearance between the port plate and the motor rotating rotor because the port plate of the motor is still when the motor rotor rotates

The distribution surface on the rotor is tightly pushed by 16 springs under the stop condition. The leakage of hydraulic oil between the two metal materials is not allowed (there is a rigid oil film between the two metal materials). Grinding in the rigid oil film

The particles rub the surface of the bimetallic layer. Therefore, when the routine maintenance of the Hagelung hydraulic motor reaches the operating time range, it is indispensable to remove and replace the seal. At the same time, the stainless steel materials must be removed and replaced.

One of the two anti wear rings is indispensable:

The third factor is:

The hydraulic oil cleanliness does not meet the standard for a long time, resulting in serious leakage of the friction pairs inside the hydraulic motor. The working pressure of the motor housing exceeds 6 Barl, resulting in tight

When the working pressure of the seal is higher than the working pressure of the HGL hydraulic motor housing, even if the seal is removed or replaced, the oil will still leak and the friction pairs of the motor will be damaged (the friction pair is annular

The gap flow and the face leakage of the port plate), even if it is useless to replace the excellent seal in the world. The rotary seal operated by Hergelon has a diameter of 200~400, which is extremely high pressure resistant BAR. It is also a rotary seal with a diameter of

The rotating seal ring at the front and rear of Zhong100 can only withstand 0.5BAR

        Hoglon motor When the main shaft leaks oil, it is necessary to know which factor is the oil leakage. A hydraulic gauge with a small measuring range should be used to measure the working pressure of the housing when the motor has a great torque

After 30 minutes of accurate measurement, the correct extreme value should be taken. During accurate measurement, observe whether the stopwatch of the hydraulic meter is relatively stable or jumping? Hergelong hydraulic motor is at the maximum output

When the torque is large, the accurately measured working pressure pointer jumps back and forth, which means that the friction pair of the motor leaks when it is under pressure!