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The volume and method of hydraulic coupler
Jan 11, 2018

The working fluid of the hydraulic coupler is the medium of the transmission torque of the coupler, and the amount of the liquid power coupler has a great influence on the transmission torque size and overload protection of the coupler.

For a coupler with the same type and specification, the amount of liquid filling directly affects the transmission torque of the coupler.

Its basic rule is that in the prescribed filling range, the more liquid filling, the greater the transfer torque of the coupler.

When the transfer torque is constant, the more liquid filling, the more efficient the hydraulic coupler will be, but the starting torque will also increase, and the overload coefficient will increase accordingly.

Different filling amount can be used to match the coupler of the same specification with several different power machines to apply different working machine requirements.

The hydraulic coupler has a certain transmission torque range, known as power belt, which corresponds to the range of liquid filled by the coupler.

In general, the liquid power coupler's liquid filling range should be 60%~80% of the total volume of the coupler, and it can't be exceeded or filled.

When the hydraulic coupling charging amount more than 80% volume, coupler in turns, rose sharply due to overload and booster, lead to the expansion of the working fluid volume, the internal pressure increase of the coupler can well sealing, causing leakage, even cause coupler shell crack, cause the damage of the machinery.