Electric Wire rope hoist belong in one, can be used for ground and aerial work, widely used in construction, hoist electric hoist safety device with different components, including: safety stop devices, broken rope protection device, load limiting device, upper limit stopper, the lower limit stopper, hoists, safety gates, buffers and communication signal devices, the following detailed description of your hoist safety devices:
(1) Safety stopping device
When the elevator stops at a certain level, the sound can hoist rests on the frame body of the device. Prevent sudden breakage or wire rope hoist brake failure of the basket from falling. Safety stop device with a brake and manual, when the cage running in place, controlled by a spring or artificial move, so that the support rod extends shelf supporting frame body, which loads the burden all by supporting frame, wire rope does not force. When the cage loading 125% rated load, run to the loading and unloading of the load floor position, the stop device should be able to reliably locate the cage.
(2) broken rope protection device
Hoist load rated load, hanging off the rope or run occurs when the protective device must be reliably broken rope hoist brake put on the rail system, the maximum braking distance should not fall more than 1m, and should not cause permanent structures damage.
(3) Load limiting device
When lifting the machine load reaches 90% of the rated load, an alarm signal, hoist rated load within the load reaches 100% -110%, the
lift hoist should be cut off the power supply.
(4) the upper limit stopper
Upper limit stopper should be installed in elevators allow elevation of the highest working position, the electric hoist overrun should not be less than 3m. When the elevator reaches the limit rise height, limiter action for that turn off the power.
(5) the lower limit stopper
Lower limit position to be capable of cushioning device in hoist met before action, hoist down to the lower limit position, the stopper should automatically cut off the power, so that the cage stopped declining.
(6) Hoist Safety Gate
Safety door interlock Opener for electrical safety door is not closed, can cause power outages, elevator does not work, but also for the mechanical chain, hoist on the runtime security doors closed automatically.
Buffers shall be installed in the frame body of the bottomless pit, when the elevator at rated load and speed requirement is applied to the buffer should be able to withstand the corresponding impact. Buffers can be used in the form of a spring or an elastic solid.
(8) means a communication signal
Signaling device is controlled by a hoist an audio device driver, the volume should enable the use of elevators on each floor clearly hear the person handling the material. When the driver can not see clearly the operator and signal commanding officer, you must install the communication device. Communication means to be a closed two-way electrical communication system, drivers and operators to each other.
rope hoist easy installation, maintenance is also relatively simple, hoist safety device equipped, standard lifting height of 3,6,9,12 m, if you have special requirements, please explain in advance at the time of purchase in order to facilitate for you ordered.