2012年8月26日星期日

your constant filling fluid coupling how to verify the correctness of the fluid-filled


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   Because sometimes do not exactly match the actual operating conditions and calculation conditions, the amount of fluid-filled selected according to the calculation condition may not be suitable for the requirements of the actual operation. For example, transfer of power, the overload factor are likely to be different, which must pass debug to verify the correctness of the fluid-filled, the validation of the project and the method is as follows.

    Rated speed verification method: work machine running at full capacity, with the rotational speed of the the tachometer measurement coupler output shaft or work machine spindle, if nT ≥ 0.96 nd (nT coupling output speed, nd motor speed), then the coupling torque (rated torque is not less than the rated load of the work machine work work machine rated torque rated torque is less than if the coupling, the coupling can not be working at nominal operating conditions, we must increase the slip to reduce the output speed). The coupling rated output speed below standard. The description of the fluid-filled inadequate, appropriate adjustments retry.

    Overload validation experience positive a s followshydraulic fittings manufacturers

(1) working machine or constant filling fluid couplings turbine brake, check the motor overload current, and calculated torque motor overload. If within the allowable range, then the suitable coupling overload coefficient, if the motor overload torque is too large, then the the coupling liquid filled excessive amount appropriate to reduce the fluid-filled retry.china hydraulic hose

(2) the working machine or constant filling fluid couplings turbine brake, measurement speed motor overload, if the motor overload speed ndj = (0.97 ~~ 0.95) nd (nd overload coupling factor for motor rated speed) qualified. If ndj <0.95, nd, excessive amount of coupling fluid-filled if ndj> 0.97nd coupling fluid-filled volume is too small.hydraulic hose and fittings

    Extended sta rt-up time to verify authentication method is as follows: In the process of working machine starts, check the start time. If the start time is too fast, the liquid filled excessive, and if the start-up time is too long, indicating that the liquid filled amount is too small, after adjusting the liquid-filled amount retry until pass up.

Multi-drive coupling filled correctness verification method is as follows

(1) measured with an ammeter various motor running current, the current description of the amount of coupling is filled, by force; low current couplings liquid filled less force is small. Appropriate adjustments since the fluid-filled, until the current basic balance date.

(2) observation of the synchronous operation of the multi-machine drive, high output speed coupling may be appropriate to put a little oil, add a little oil or low output speed coupling appropriate.

(3) measured state coupling output speed, high output speed p ut a little oil should be slightly lower output speed should be a little oil.

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