Adjustable container portal crane lifting appliance torsion inhibition method and device
A technology of gantry cranes and suppression devices, which is applied in the direction of cranes, trolley cranes, hoisting devices, etc., to achieve the effects of reducing construction difficulty, wide application range, and eliminating interference
Pending Publication Date: 2021-01-05
TIANJIN PORT (GROUP) COMPANY +2
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Problems solved by technology
[0004] The object of the present invention is aimed at the existing container gantry cranes with coaxial arrangement of hoisting drums and adopting four-rope suspension spreader structure. To solve the problem of work efficiency, provide a container gantry crane spreader torsion suppression method, and combine this suppression method to provide adjustable torsion suppression device components for specific structures of different field bridges
Method used
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Embodiment 1
[0040] figure 1 The example shows the schematic diagram of the wire rope winding method of the four-rope suspension spreader in the prior art, the yard bridge equipment with the coaxial arrangement of the hoisting mechanism reel. It should be pointed out that this solution is only for comparison with the method of the present invention, and its specific components, specific arrangements and forms of components are not within the protection scope of the present invention. Included in the figure is the reel device 11 of the hoisting mechanism, the wire rope 12, the upper frame pulley 13 of the spreader and the upper frame structure 14 of the spreader. At the same time, for the convenience of explanation, it is stipulated that the direction of the main shaft of the pulley is the X direction, that is, the vertical direction of the trolley; the Y direction in the horizontal plane is perpendicular to the X direction, that is, the travel direction of the field bridge equipment trolle...
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The invention discloses an adjustable container portal crane lifting appliance torsion inhibition method and device The device comprises two sets of lifting appliance upper frame pulley supporting structures installed on a lifting appliance upper frame main structure, two lifting appliance upper frame pulleys installed through two sets of lifting appliance pulley assembly shafting arranged on eachsupporting structure, adjustable rope-out-preventing guardrails arranged on the lifting appliance upper frame pulley supporting structures and adjusting and fastening assemblies arranged on the lifting appliance upper frame pulley supporting structures. A method of performing mechanical transformation on the lifting appliance upper frame pulley assembly structures is adopted, and the uneven stress condition of four hanging ropes of a winding drum is improved by adjusting the lengths of annular sleeves on main shafts on the two sides of the upper frame pulleys, so that the influence of reciprocating torsion in the descending or lifting process of a lifting appliance is inhibited, the torsion amplitude is reduced to a range in which a box can be normally landed, and the interference of thereciprocating torsion phenomenon of the lifting appliance on the container stacking operation process is eliminated.
Description
technical field [0001] The invention relates to the field of container gantry cranes, in particular to a method and a corresponding device for suppressing the torsion phenomenon of the spreader components of the container gantry crane during the lowering or lifting process. Background technique [0002] Container gantry crane, referred to as yard bridge, is the main equipment for container cargo stacking operations in the yard behind the wharf. In the process of field bridge operation, apart from the problem of wire rope swing when the trolley is running, the problem of reciprocating torsion on the horizontal plane generated by the spreader and load when the hoisting mechanism is working is also an important factor affecting its work efficiency. It has the phenomenon of horizontal reciprocating torsion, which is more obvious on the field bridge equipment with four-rope suspension structure. [0003] During the descending process of the field bridge spreader, if there are fr...
Claims
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Login to View More IPC IPC(8): B66C1/12B66C11/00B66C13/46B66C13/06B66C19/00B66D1/26B66D1/28
CPCB66C1/12B66C11/00B66C13/06B66C13/46B66C19/00B66D1/26B66D1/28
Inventor 刘峰朱连义么学成李鑫杨志郭志刚曹海昕郝运嵩
Owner TIANJIN PORT (GROUP) COMPANY