A-frame luffing mechanism and control system thereof
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A technology of luffing mechanism and control system, which is applied in the direction of fluid pressure actuated system components, cranes, mechanical equipment, etc., can solve the problems of unstable luffing process, poor use efficiency and safety performance, etc. Stable, guaranteed synchronization and safety, stable amplitude effect
Active Publication Date: 2019-03-05
HUBEI OCEAN ENG EQUIP RES INST CO LTD +2
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[0003] This application provides an A-frame luffing mechanism and its control system, which solves the technical problems of the A-frame control system in the prior art that the luffing process is not stable, and the use efficiency and safety performance are poor
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Embodiment 1
[0042] In order to solve the technical problems in the prior art that the luffing process of the control system of the A-frame is not stable, and the use efficiency and safety performance are poor, the application provides an A-frame luffing mechanism. Such as figure 1 , figure 2 and image 3 As shown, the A-frame luffing mechanism includes a portal frame 110, an oil cylinder support 120, two first luffing cylinders 130, two second luffing cylinders 140 and a control system.
[0043] The portal frame 110 includes a beam 111 and two uprights 112 fixedly connected to both ends of the beam 111 , and the two uprights 112 are pivotally connected to a base (not shown).
[0044] The oil cylinder support 120 is fixed on the base.
[0045] One ends of the two first luffing cylinders 130 and the two second luffing cylinders 140 are fixed on the cylinder support 120 , and the other ends of the two first luffing cylinders 130 and the two second luffing cylinders 140 The other ends of...
Embodiment 2
[0084] Based on the same inventive concept, the present application also provides a control system of the A-frame luffing mechanism, the control system adopts an open system, and the control method adopts electronic control (closed-loop control, through the control signal, the oil cylinder position sensor signal and the area The signal is automatically completed), the reversing method adopts valve control, and the speed regulation method adopts pump control. exist Figure 4 Among them, the left A luffing cylinder and the left B luffing cylinder are the first luffing cylinder 130 , and the right A luffing cylinder and right B luffing cylinder are the second luffing cylinder 140 .
[0085] Such as Figure 4 As shown, the control system includes a main circuit one and a main circuit two, and the main circuit one mainly supplies oil to the left cylinder group.
[0086] Main circuit 1 includes: oil pump 1, oil pump 2, two butterfly valves 18, two oil suction filters 15, two first...
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Abstract
The invention discloses an A-shaped frame amplitude varying mechanism and a control system thereof. The A-shaped frame amplitude varying mechanism comprises an n-shaped frame, oil cylinder supports, two first amplitude varying oil cylinders, two second amplitude varying oil cylinders and the control system. The n-shaped frame comprises a cross beam and two vertical posts fixedly connected with the two ends of the cross beam respectively. The two vertical posts are connected to a base in a pivoted mode. The oil cylinder supports are fixed to the base. One ends of the two first amplitude varying oil cylinders and one ends of the two second amplitude varying oil cylinders are fixed to the oil cylinder supports, the other ends of the two first amplitude varying oil cylinders and the other ends of the two second amplitude varying oil cylinders are fixed to the two vertical posts respectively, and the two first amplitude varying oil cylinders and the two second amplitude varying oil cylinders are arranged on the two sides of the n-shaped frame respectively and are located on the two sides of the two vertical posts in the arraying direction respectively. By arranging the control system, when the amplitude varying of an A-shaped frame reaches different angles, the four hydraulic oil cylinders are changed to be in an expanding state or in a telescopic state or in a floating state through the hydraulic control system, so that different tensile force is supplied to the A-shaped frame, and the synchronism and the safety of the amplitude varying process are ensured.
Description
technical field [0001] The invention relates to the technical field of hoisting and hoisting equipment, in particular to an A-frame luffing mechanism and a control system thereof. Background technique [0002] With the increasing frequency of international ocean development activities, high-end marine engineering auxiliary deep-sea high-end equipment, such as the multi-functional deep-water salvage equipment hydraulic A-frame, which serves deep-sea operations, rescue, fire protection, and salvage, has attracted much attention from the international offshore oil industry. However, the existing domestic marine engineering equipment is mainly concentrated in shallow water areas, and there is no possibility of deep water salvage operations. Therefore, it is urgent to reduce costs and improve the transformation from foreign imports to domestic independent design, development and manufacture of hydraulic A-frames, so that the whole The overall localization of the machine to meet t...
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Application Information
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