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Hydraulic Couplings Must Be Used When Attention

Ningbo E.H Hydraulic Co.,Ltd | Updated: Jul 21, 2017

Hydraulic couplings work smoothly and reliably, in a wide range of stepless speed regulation, from the lubrication, can make the power machine without load start. Power transmission speed is equal to the pump speed, the transmission efficiency of 95 --- 97%, when the pump speed reduced to 25 --- 30%, the transmission efficiency of 68 --- 70%, Hydraulic Couplings in the automatic control of the pumping station, stop Pump is often due to the inertia of the pump and the tube water back caused by the role of water hammer. However, the use of this structure, Hydraulic Couplings the need to add another hydraulic coupling and its internal oil-filled, if the use of hydraulic coupling, you can reduce the water hammer (or water) pump (or pump) coupling oil cooler and other equipment, fear

The hydraulic coupling is the intermediate connecting part of each movement mechanism, which has a direct effect on the normal operation of each movement mechanism. Therefore, it is necessary to pay attention to:

① hydraulic coupling is not allowed to exceed the provisions of the axis line skew and radial displacement, Hydraulic Couplings so as not to affect its transmission performance.

② hydraulic coupling bolts must not loose, defect.

③ gear hydraulic coupling and cross slide hydraulic coupling to regular lubrication, generally 2 to 3 months plus grease once, in order to avoid sharp teeth wear, resulting in serious consequences.

④ gear hydraulic coupling tooth width contact length shall not be less than 70%; the axial movement of the amount of not more than 5mm.

⑤ hydraulic coupling does not allow the existence of cracks, Hydraulic Couplings if cracks are required to be replaced (available hammer percussion, according to the sound to judge).

⑥ hydraulic coupling key should be with the tight, not loose.

⑦ gear hydraulic coupling tooth thickness wear, the hoisting mechanism more than 15% of the original tooth thickness, the operating mechanism should be more than 25% should be scrapped, broken teeth should also be scrapped.

⑧ pin hydraulic coupling elastic ring, gear hydraulic coupling ring, if damaged aging, pay attention to timely replacement.


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