Online detection alarm protection device for hoist climbing rope and alarm protection method thereof
A technology of protection device and alarm device, applied in the direction of hoisting device, clockwork mechanism, etc., can solve the problems of property loss, casualties, heavy objects falling, etc., and achieve the effects of simple operation, high reliability and low cost
Inactive Publication Date: 2016-06-01
ANHUI LIUGONG CRANE
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Problems solved by technology
However, due to some reasons, the winding action of the steel wire rope cannot continue normally, and the rope climbing phenomenon of the steel wire rope occurs. The direction continues to wind, but it has been wound on the nearest circle of steel wire rope at the original position, until the winding height of the steel wire rope is higher than the drum rib, and then it comes out of the drum
When a climbing rope fault occurs, the steel wire rope will suddenly come out from the side of the drum, causing the heavy object to fall suddenly, and the fault is difficult to be discovered by the operator in advance during the normal operation of the machine, which will bring great harm to personal and property hidden dangers, and may even cause major property damage and casualties
Method used
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[0016] An on-line detection and alarm protection device for a hoist climbing rope, comprising a bracket located below the reel 6 and arranged close to the inner side of the sidewall of the reel 6, a proximity switch is installed on the upper end of the bracket, and the proximity switch is arranged close to the outermost layer of the rope contained in the hoist. The signal output end of the switch is connected with the signal input end of the controller, and the signal output end of the controller is respectively connected with the alarm device and the winch. The lower end of the bracket is installed on the base plate 5 where the reel 6 is located, and the base plate 5 is a steel plate. The alarm device is composed of a buzzer and an indicator light, and the signal output terminals of the controller are respectively connected with the buzzer and the indicator light. Such as figure 1 , 2 , 3 shown.
[0017] Such as figure 1 , 2 , 3, the bracket is composed of first and seco...
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The invention relates to an online detection warning protection device for the rope winding abnormity of a winch. The device comprises a support. The support is located below a winding drum and arranged close to the inner side of a flange of the winding drum. A proximity switch is installed at the upper end of the support and arranged close to the outermost layer of an area within the rope capacity range of the winch. The signal output end of the proximity switch is connected with the signal input end of a controller. The signal output end of the controller is connected with a warning unit and the winch. The invention further discloses a warning protection method of the online detection warning protection device for the rope winding abnormity of the winch. When the rope winding abnormity occurs, the controller receives a rope winding abnormity signal sent by the proximity switch and then sends two signals, one signal is transmitted to the warning unit to give a warning, and the other signal is used for stopping movement of the winch to guarantee working safety. At the time of the rope winding abnormity of the winch, the actions of giving the warning and stopping the movement of the winch can be effectively carried out in time to prevent a steel wire rope from being disengaged from the winding drum, and therefore the safety protection effect is achieved. The device is low in cost, high in reliability and easy to operate.
Description
technical field [0001] The invention relates to the technical field of hoist control, in particular to a hoist climbing rope online detection alarm protection device and an alarm protection method thereof. Background technique [0002] During the working process of the hoist, when the steel wire rope is wound to the inner side of the drum rib, it should rise to the upper layer and continue winding in the opposite direction. However, due to some reasons, the winding action of the steel wire rope cannot continue normally, and the rope climbing phenomenon of the steel wire rope has occurred. The direction continues to wind, but has been wound on the nearest turn of the steel wire rope at the original position, until the winding height of the steel wire rope is higher than the reel rib, and then comes out of the reel. When a climbing rope fault occurs, the steel wire rope will suddenly come out from the side of the drum, causing the heavy object to fall suddenly, and the fault ...
Claims
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IPC IPC(8): B66D1/54B66D1/56
Inventor 柳坤李亮郭太银王充徐青山张朋
Owner ANHUI LIUGONG CRANE