Opening and closing method of cable-stayed arc gate with hydraulic hoist
A technology of hydraulic hoist and arc gate, which is used in hydraulic engineering, marine engineering, coastline protection, etc., to reduce the internal force of bending moment and save manufacturing.
Inactive Publication Date: 2011-12-28
YELLOW RIVER ENG CONSULTING
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Problems solved by technology
Therefore, how to adopt a simple and easy method to solve the above-mentioned contradictions has been a subject of research by those skilled in the art, but there are no reports on this aspect at present
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[0015] Such as Figure 1-4 As shown, in the method for opening and closing the obliquely-stayed arc gate of the hydraulic hoist according to the present invention, a cross joint 2 is respectively installed on the suspension heads at both ends of the hydraulic gate hoist 1, and the two cross joints 2 The hinge shafts 3 and 4 are perpendicular to each other, and the hydraulic hoist 1 is respectively connected with the lifting lug 8 of the arc gate 5 and the upper support 9 of the hydraulic gate 1 through the two cross hinge joints 2; the arc gate 5 The lifting lug 8 of the arc gate 5 can be arranged at the best position of the arc gate 5, so as to minimize the moment arm of the cantilever load, as long as the axis of the lug 8 of the arc gate 5 is perpendicular to the longitudinal symmetrical center plane 6 of the arc gate. Yes; the upper support 9 of the hydraulic hoist 1 can also be arranged as close to the side wall 7 of the gate pier as possible, so as to achieve the best ov...
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The invention discloses a method for opening and closing a cable-stayed arc-shaped gate of a hydraulic hoist. A cross hinge joint is installed on the suspension heads at both ends of the hydraulic hoist. The two hinge shafts of the cross hinge joint are perpendicular to each other. The hoist is respectively connected to the lifting lug of the arc gate and the upper support of the hydraulic hoist through two cross hinge joints; the lifting lug of the arc gate can be arranged at the best force-bearing position of the arc gate, so as to minimize the moment arm of the cantilever load , as long as the axis of the lifting lug of the arc gate is perpendicular to the longitudinal symmetry center plane of the arc gate; the optimal overhang length of the upper support of the hydraulic hoist is based on reducing the internal force of the bending moment of the cantilever section and maintaining the hydraulic pressure. The axis of the hinge shaft of the upper support of the hoist is perpendicular to the longitudinal symmetrical central plane of the arc gate. The invention has the advantage of solving the contradictions in the layout positions of the upper and lower hoisting points of the hydraulic hoist when the arc gates are arranged with large openings and large spans, and saves the manufacturing and installation costs of the arc gates.
Description
technical field [0001] The invention relates to a method for opening and closing an arc gate in a water conservancy project, in particular to a method for opening and closing an arc gate with a hydraulic hoist. Background technique [0002] In the design of metal structures in water conservancy projects, hydraulic hoists are often used to open and close arc gates. Such as Figure 5 , Image 6 As shown, the lifting lug of the gate is often connected with the lifting head of the hoist by a cylindrical hinge shaft, and the other end of the hoist is connected with the cylindrical support fixed on the side wall of the gate pier. According to the constraint conditions of the arc gate, it is obvious that during the gate opening and closing process, the central axis of the gate hoist must be parallel to the longitudinal symmetrical center plane of the gate. Therefore, the positions of the upper and lower lifting points of the hoist have always been a contradiction in gate layout. ...
Claims
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Inventor 乔为民陈丽晔丁正忠杨光
Owner YELLOW RIVER ENG CONSULTING