路橋門式起重機(jī)主要用于橋梁建設(shè),工作速度慢,由門架、卷?yè)P(yáng)機(jī)小車、大車運(yùn)行機(jī)構(gòu)、司機(jī)室和電氣控制系統(tǒng)組成。
門架為桁架結(jié)構(gòu),具有結(jié)構(gòu)輕、抗風(fēng)力強(qiáng)等優(yōu)點(diǎn)。包括主梁、上端梁、支腿、下端梁、走行臺(tái)車及走臺(tái)欄桿等。主梁采用三角桁架結(jié)構(gòu),上面鋪設(shè)有軌道,供小車沿主梁方向作橫向移動(dòng)。支腿采用箱形或鋼管兩種形式。
Boad-bridge gantry crane is mainly used for bridge construction which is worked at a low rate. It is composed of gantry, windlass crab, trolley travelling mechanism, cab and electric control system.
The gantry, of a truss structure and having advantages of light structure, strong wind resistance and so on, is composed of girder, upper end girder, leg, lower end girder, travelling trolley and platform railing. The girder is of a triangular truss structure, on which laid rails for crane crab to transversely move along the main girder. The legs are of a box structure or steel tube structure.




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湖北省|
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房产|
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