Boom reversing hydraulic supporting and fixing device for large fixed boom floating crane
A hydraulic support and fixing device technology, applied in the direction of cranes, etc., can solve the problems of reducing the anti-wind and wave ability of floating cranes, limiting the application range of floating cranes, raising the gravity center of gravity of floating cranes, etc., achieving good promotion and application value, simple structure, The effect of lowering the boom height
Inactive Publication Date: 2012-07-18
董兰田
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Problems solved by technology
This limited operation method has the following shortcomings and disadvantages: 1. The towering and huge boom not only raises the center of gravity of the floating crane, but also has a huge wind resistance effect, which reduces the wind and wave resistance of the floating crane
2. The floating and swinging tall boom brings a lot of inconvenience and risks to maintenance, inspection and repair
3. During the transition and movement, if bridges and culverts or other air obstacles are encountered, the application range of the floating crane will be limited.
Method used
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[0014] Such as figure 1 As shown, a support mortar 6 is provided on the boom 2, a hydraulic device 7 is provided in the cabin of the hull 1, the piston rod head of the hydraulic device 7 is provided with a support pestle 8 corresponding to the support mortar 6, and a fixed bracket is provided at the rear of the deck of the hull 1 9.
[0015] In use, when the boom 2 is in the vertical position, the support pestle 8 touches the support mortar 6, while the winch 5 continuously tightens the sling 4, the hydraulic pressure 7 supports and controls the boom 2 to fall, and slowly sits on the fixed bracket 9 , by the base 3 and the fixed support 9 support fixed boom 2 lying on the deck of the hull 1.
[0016] Except for the technical features described in the description, all are known technologies by those skilled in the art.
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The invention provides a boom reversing hydraulic supporting and fixing device for a large fixed boom floating crane. The device consists of a boom, a supporting socket, a supporting poke, a hydraulic press and a fixing bracket. The device is characterized in that: when the boom is positioned at a vertical position, the supporting poke is pressed against the supporting socket; and when the boom is inclined and falls towards a reverse position, the boom is supported and controlled by the hydraulic press to be seated on the fixing bracket. Compared with the prior art, the boom reversing hydraulic supporting and fixing device for the large fixed boom floating crane has the advantages that: when the floating crane is to be used and transferred, the boom forwardly lies on a floating crane deck; and the device is low in wind resistance, low in gravity center, high wind wave resistance and convenient to maintain and check, and easily passes through bridges, culverts and other air barriers, so that the device has high promotion and application value.
Description
1. Technical field: [0001] The invention relates to floating crane equipment, in particular to a large-scale fixed-arm floating crane arm reverse hydraulic support and fixing device. 2. Background technology: [0002] In the large-scale fixed-arm floating crane of the prior art, its boom is fixed within the range of motion of the forward functional position, and is limited to completing the raising or lowering action. There are following deficiencies and drawbacks in this limited mode of operation: 1. The towering and huge boom not only raises the gravity center of gravity of the floating crane, but also has a huge wind resistance effect, which reduces the wind and wave resistance of the floating crane. 2. The floating and swinging tall boom brings a lot of inconvenience and risks to maintenance, inspection and repair. 3. During the transition and movement, if bridges and culverts or other air obstacles are encountered, the application range of the floating crane will be li...
Claims
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IPC IPC(8): B66C23/53
Inventor 王为凯李雷董娜董婷婷董兰田
Owner 董兰田