Henan Weihua reminds you what safety devices and functions are installed in the hook set
Most of the major accidents of operating cranes are caused by the loss of stability of the crane. Loss of stability is due to overload, over-hoisting and other reasons. To prevent the occurrence of accidents, the following safety devices must be installed: moment limiter, rising limit position limiter, amplitude indicator, level gauge, and warning boom back-tilt device. Outrigger retraction locking device, rotation positioning device, reverse alarm device, moving parts protective cover, electrical configuration rain cover.
Moment limiter: Its function is to limit the overturning moment of the crane and prevent the crane from overturning due to excessive torque. It is composed of force detector, arm length and arm angle detector. When the lifting weight reaches the rated value, a signal is sent and a red light is displayed to stop the accident.
Amplitude indicator: A circular indicator plate equipped with a movable pointer is hung on the lifting arm. When the amplitude is changed, it can indicate the lifting weight at various amplitudes.
Lift limit position limiter: This device is a device that warns the boom of over-lifting. When the boom approaches the maximum angle, the limit switch opens and an alarm is issued.
Rotary positioning device: When the crane is traveling, the upper crane is connected to a firm position.
Reverse alarm device: When the crane travels in the reverse direction, it should be able to quickly send out alarm sound signals and flashing light signals.
Level instrument: This instrument mainly measures the levelness of the front, rear, left and right directions of the crane chassis to control the outriggers to keep the crane level.
The device to prevent the boom from tilting backwards: to ensure that when the travel switch of the luffing mechanism fails, the boom can be prevented from tilting backwards.
Moving parts protective cover: Covers exposed moving parts on the crane that may injure people.
Electrical configuration rain cover: Cover the electrical configuration on the crane to prevent rain from affecting its performance.
Outrigger retraction locking device: ensures that the crane outriggers can be locked reliably when they are retracted.
Most of the major accidents of operating cranes are caused by the loss of stability of the crane. Loss of stability is due to overload, over-hoisting and other reasons. To prevent the occurrence of accidents, the following safety devices must be installed: moment limiter, rising limit position limiter, amplitude indicator, level gauge, and warning boom back-tilt device. Outrigger retraction locking device, rotation positioning device, reverse alarm device, moving parts protective cover, electrical configuration rain cover.
Moment limiter: Its function is to limit the overturning moment of the crane and prevent the crane from overturning due to excessive torque. It is composed of force detector, arm length and arm angle detector. When the lifting weight reaches the rated value, a signal is sent and a red light is displayed to stop the accident.
Amplitude indicator: A circular indicator plate equipped with a movable pointer is hung on the lifting arm. When the amplitude is changed, it can indicate the lifting weight at various amplitudes.
Lift limit position limiter: This device is a device that warns the boom of over-lifting. When the boom approaches the maximum angle, the limit switch opens and an alarm is issued.
Rotary positioning device: When the crane is traveling, the upper crane is connected to a firm position.
Reverse alarm device: When the crane travels in the reverse direction, it should be able to quickly send out alarm sound signals and flashing light signals.
Level instrument: This instrument mainly measures the levelness of the front, rear, left and right directions of the crane chassis to control the outriggers to keep the crane level.
The device to prevent the boom from tilting backwards: to ensure that when the travel switch of the luffing mechanism fails, the boom can be prevented from tilting backwards.
Moving parts protective cover: Covers exposed moving parts on the crane that may injure people.
Electrical configuration rain cover: Cover the electrical configuration on the crane to prevent rain from affecting its performance.
Outrigger retraction locking device: ensures that the crane outriggers can be locked reliably when they are retracted.
Most of the major accidents of operating cranes are caused by the loss of stability of the crane. Loss of stability is due to overload, over-hoisting and other reasons. To prevent the occurrence of accidents, the following safety devices must be installed: moment limiter, rising limit position limiter, amplitude indicator, level gauge, and warning boom back-tilt device. Outrigger retraction locking device, rotation positioning device, reverse alarm device, moving parts protective cover, electrical configuration rain cover.
Moment limiter: Its function is to limit the overturning moment of the crane and prevent the crane from overturning due to excessive torque. It is composed of force detector, arm length and arm angle detector. When the lifting weight reaches the rated value, a signal is sent and a red light is displayed to stop the accident.
Amplitude indicator: A circular indicator plate equipped with a movable pointer is hung on the lifting arm. When the amplitude is changed, it can indicate the lifting weight at various amplitudes.
Lift limit position limiter: This device is a device that warns the boom of over-lifting. When the boom approaches the maximum angle, the limit switch opens and an alarm is issued.
Rotary positioning device: When the crane is traveling, the upper crane is connected to a firm position.
Reverse alarm device: When the crane travels in the reverse direction, it should be able to quickly send out alarm sound signals and flashing light signals.
Level instrument: This instrument mainly measures the levelness of the front, rear, left and right directions of the crane chassis to control the outriggers to keep the crane level.
The device to prevent the boom from tilting backwards: to ensure that when the travel switch of the luffing mechanism fails, the boom can be prevented from tilting backwards.
Moving parts protective cover: Covers exposed moving parts on the crane that may injure people.
Electrical configuration rain cover: Cover the electrical configuration on the crane to prevent rain from affecting its performance.
Outrigger retraction locking device: ensures that the crane outriggers can be locked reliably when they are retracted.
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