2013年7月29日星期一

Introduce three kinds of electric hoist stopper


Wire rope hoist lifting weight limiter includes stopper, lifting height limiter, run stroke limiter, the following limit these three were described as follows, for your reference:
      1, electric hoist lifting weight limiter: electric hoist operations are overloaded possible lifting mechanism shall be fitted with lifting limiter. Actual weight of over 95 per cent from the nominal weight, the alarm function from the weight limiter should be able to send an alarm signal. Actual nominal weight from the weight in between, from the weight of the stopper should be able to work, you should be able to automatically shortness of breath lifting power source while lowering movement should allow noon.
2,  Rope hoist  shall be fitted with lifting height limiter: When the device rises to extract higher limit prescribed, it shall be automatically cut off the power source of the lifting. In the limit position should allow sufficient spare height has decreased need Haiying depth limiter, when extract device drop down to the design requirements limit position, shall be automatically cut off the power source of the motor for the decline in the direction of the movement should be able to retain power is cut off the power to do the opposite movement.
      3, run the stroke limiter:  hoist and trolley  running in the direction of each stroke limiter to be installed to run in place to meet the design requirements limit the forward direction shall be automatically cut off the power source , you can run the opposite direction. Running speed is greater than or equal to 100 meters per minute higher speeds or when parking position positioning precision is higher, you can install a second stroke limiter.

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