Protective fusing device and method for steel wire rope of automobile crawler crane under overload tension
A protective and fusing technology, applied in cranes and other directions, can solve problems such as inability to adjust, and achieve the effect of simple structure, clear process, and good preventive and early warning effect.
Pending Publication Date: 2021-09-03
HUAIYIN INSTITUTE OF TECHNOLOGY
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- Abstract
- Description
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- Application Information
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Problems solved by technology
Most of the existing electromagnet applications can only be hoisted with a rated weight, and cannot be flexibly adjusted according to the specific requirements of the construction
Method used
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[0022] The technical solutions of the present invention will be further described below with reference to the accompanying drawings.
[0023] like figure 2 , 3 As shown, this wire rope protective fuse device is composed of: including an electromagnet hoist sling connection device controlled by a current magnitude I, a force-sensitive resistance surface, and a portable power supply device. The connecting device is used to connect the hoist sling; the force-sensitive resistance surface is installed on the inner surface where the connecting device contacts the sling; the portable power supply device is installed at the connecting device to ensure the normal operation of the entire device.
[0024] The present invention controls the integrity of the overall structure of the hook through the magnitude of the current I, controls the magnitude of the current in the entire system with a force-sensitive resistor, and arranges the force-sensitive resistor at a suitable position to ens...
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The invention discloses a protective fusing device for a steel wire rope of an automobile crawler crane under overload tension. The protective fusing device comprises a connecting device, a force sensitive resistor surface and a portable power supply device; the connecting device is used for being connected a sling of the crane and is controlled to achieve fusing according to the magnitude of current; the force sensitive resistor surface is mounted at the joint of the connecting device and the sling; and the portable power supply device is installed on the connecting device. The connection surface of the upper end of the sling is modified into a pressure sensitive resistor, meanwhile, the portable power supply device integrated with the pressure sensitive resistor is additionally arranged, and the electromagnet connecting device controlled by the current is additionally arranged at the joint to form the fusing device, so that when the pressure value is too large, the current changes accordingly, the electromagnet connecting device controlled by the magnitude of the current is immediately powered off, and a lifting hook and the sling are immediately separated from the crane to play a role in fusing early warning. The steel wire rope is prevented from being broken due to overweight, and meanwhile, casualties possibly caused by the fact that early warning is not conducted in time due to overload carrying are prevented.
Description
technical field [0001] The invention belongs to the technical field of civil engineering construction safety, and in particular relates to a protective fusing device and method for a wire rope of an automobile crawler crane under overload tension. Background technique [0002] The magnetism of the magnet can be controlled by on or off the current; the magnitude of the magnetism can be controlled by the strength of the current or the number of turns of the coil; the magnitude of the magnetism can also be controlled by changing the resistance to control the magnitude of the current; its magnetic pole can be changed by The direction of the current to control, and so on. That is, the strength of magnetism can be changed, the presence or absence of magnetism can be controlled, the direction of the magnetic pole can be changed, and the magnetism can disappear due to the disappearance of the current. [0003] At present, most of the common electromagnet applications in the market ...
Claims
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IPC IPC(8): B66C23/90
CPCB66C23/905
Inventor 张永成段思同赵度薇金丽君陶奕龙
Owner HUAIYIN INSTITUTE OF TECHNOLOGY