Hydraulic synchronous control system of the davit device
A technology of hydraulic synchronization and control system, applied in the direction of fluid pressure actuation device, servo motor, mechanical equipment, etc., can solve the problems of inability to synchronize work, poor environmental adaptability, complex control system, etc., achieve good synchronization effect, low manufacturing cost , the effect of eliminating the cumulative synchronization error
Active Publication Date: 2017-08-25
中船绿洲镇江船舶辅机有限公司
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Problems solved by technology
This method has the function of automatic compensation and high synchronization accuracy, but it has defects such as high cost, complex control system, poor environmental adaptability, and easy failures, and it cannot work synchronously when the power-off state of the davit device
Method used
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[0022] The present invention will be further described below in conjunction with drawings and embodiments.
[0023] like Figure 1 ~ Figure 4 As shown, the present invention includes two luffing cylinders 1 with the same structural size and a double hydraulic pump 2, and the two luffing cylinders 1 are respectively connected to the same hydraulic circuit 3 of the luffing cylinders. Each luffing cylinder hydraulic circuit 3 includes a one-way valve 31, a system relief valve 32, a manual reversing valve 33, two stroke end compensation valves 34 and a balance valve 35, and the manual reversing valve 33 is a three-position six-way reversing valve. The valve, the rod chamber and the rodless chamber of the luffing cylinder 1 are respectively connected to the first output port 334 and the third output port 336 of the manual reversing valve 33 through the balance valve 35 . The pump at the left end of the double hydraulic pump 2 is a quantitative pump 21, and the pump at the right en...
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The invention discloses a boat-hanging device hydraulic synchronous control system which comprises two derricking cylinders and a duplex hydraulic pump. The two derricking cylinders are connected with same derricking cylinder hydraulic loops respectively. Each derricking cylinder hydraulic loop comprises a one-way valve, a system overflow valve, a manual reversing valve, two stroke terminal point compensation valves and a balance valve. Movement valve core end heads of the two manual reversing valves are fixedly connected with the two ends of a connection rod respectively; the lower end of an operation handle is fixedly arranged on the middle point of the connection rod; two output ports of the manual reversing valve are connected with two stroke terminal point compensation valve input ports respectively; and oil channels of two stroke terminal point compensation valve output ports are combined into one oil channel which is returned to an oil tank through a return oil filter. The system is simple in structure, high in reliability and low in manufacturing cost; piston rods of the derricking cylinders always keep synchronous in the moving process, and have nothing to do with load born by the derricking cylinders; and cumulated synchronization errors of the two derricking cylinders can be eliminated to enable the two derricking cylinders to obtain a good synchronization effect.
Description
technical field [0001] The invention relates to a boat hanging device, in particular to a hydraulic control system for synchronous retraction and retraction of the boom of the energy storage type double lifting point hanging boat, which belongs to the technical field of hydraulic transmission. Background technique [0002] The boat hanging device is a life-saving equipment that must be equipped on all kinds of ships and offshore platforms. The two booms of the energy-storage double lifting point boat hanging device are poured out and recovered through two luffing oil cylinders. In order to ensure that the lifeboat and its To ensure the safety of the occupants, the two booms must be poured out and recovered synchronously, so the two luffing cylinders are required to be extended and retracted synchronously. [0003] There are mainly three types of synchronous pouring and recovery of the two booms of the existing energy-storage double-lift point hanging device: [0004] 1. Rig...
Claims
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IPC IPC(8): F15B11/22F15B11/17
CPCF15B11/17F15B11/22
Inventor 王志军蒋余良眭国忠印俊
Owner 中船绿洲镇江船舶辅机有限公司