Crane and its hoisting wire rope anti-over-discharge protection device
An over-discharge protection and steel wire rope technology, which is applied in hoisting devices, clockwork mechanisms, etc., can solve problems such as poor reliability, low sensitivity, and wire rope working state detection, and achieve low cost of use, improved reliability, and simple structure Effect
Inactive Publication Date: 2014-10-29
XUZHOU HEAVY MASCH CO LTD
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Problems solved by technology
[0007] The anti-over-discharge device cannot constantly detect the working state of the wire rope on the drum, and the sensitivity is not high, and the reliability is relatively poor
Method used
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[0028] The core of the present invention is to provide a hoisting wire rope anti-over-discharge protection device, which can measure the number of rotations of the drum at all times, improve the safety of the crane, and has a simple structure and relatively low cost of use. Another core of the present invention aims to provide a crane including the above-mentioned hoisting wire rope over-discharging protection device.
[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0030] Please refer to Figure 1 to Figure 3 , figure 1 It is a structural schematic diagram of a specific embodiment of the hoisting wire rope anti-over-discharge protection device provided by the present invention; figure 2 for figure 1 Right side view of the supplied overdischarge protection.
[0031] In a sp...
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The invention discloses an anti-over-discharging protection device of a hoisting rope, which is used for measuring the rotating turn number of a rope (4) and comprises a detecting switch and a display device, wherein the detecting switch is used for detecting an rotating angle of a wound roll (3) and is arranged on the wound roll (3), and the display device is connected with the signal output end of the detecting switch. The anti-over-discharging protection device of the hoisting rope can accurately measure the rotating turn number of the rope (4) in real time, thereby monitoring the work state of the hoisting rope (4) and increasing the over-discharging judgment reliability of the rope (4) and the work safety of a crane, in addition, the anti-over-discharging protection device of the hoisting rope has simple structure and lower use cost, is also provided with a controller (6) and an alarming device and realizes the automatic control of engineering machinery. On the basis, the invention also provides a crane with the anti-over-discharging protection device of the hoisting rope.
Description
technical field [0001] The invention relates to the technical field of cranes, in particular to a hoisting wire rope over-discharging protection device for a crane. In addition, the present invention also relates to a crane comprising the above-mentioned hoisting wire rope over-discharging protection device. Background technique [0002] Hoisting is one of the most important working mechanisms of the crane. Its main function is to control the retraction and release of the wire rope wound on the surface of the drum, so that the crane can raise or lower the heavy objects during the lifting operation. [0003] The reel used in the crane is generally a compound reel, and both sides of the reel are provided with spiral grooves, and the helical directions of the two are opposite. Usually fixed with a pressure plate. [0004] When the crane is working, the steel wire rope will generate tension on the pressure plate that fixes it. In order to reduce the tension of the steel wire r...
Claims
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IPC IPC(8): B66D1/54
Inventor 曹立峰曹广志柴君飞
Owner XUZHOU HEAVY MASCH CO LTD