Provided is a middle folding type foldable suspension arm of an automobile crane. A rotary seat is fixedly mounted on a base, two triangular middle columns are symmetrically and fixedly mounted on thefront side and the rear side of the rotary seat respectively, a cavity is formed between the two middle columns, the tops of the two middle columns are movably connected with the tail part of a second arm, a downward bending part is arranged at each of the head and the tail of the second arm, oil cylinder seats I are symmetrically and fixedly mounted on the outer sides of the two middle columns,front and rear sides of the middle front part of the second arm are symmetrically provided with oil cylinder seats II, a first variable-amplitude oil cylinder is connected between the oil cylinder seats I and the oil cylinder seat II, the head of the second arm is movably connected with a telescopic arm, first connecting rods are movably arranged on two sides of the tail of the telescopic arm, second connecting rods are movably arranged on two sides of a bending point of the head of the second arm, the section of the second arm is in an inverted U shape, the inner side of the bending point ofthe tail of the second arm is movably connected with a second variable-amplitude oil cylinders, and the other end of the second variable-amplitude oil cylinder is movably connected with the first connecting rods and the second connecting rods. According to the middle folding type foldable suspension arm of the automobile crane, the loading space is saved, goods are convenient to ship, and the transportation cost is saved.
一种汽车起重机可中折式折叠吊臂,底座上固定安装有旋转座,旋转座的前后两侧分别对称固定安装有两个三角形中柱,两个中柱之间形成一个空腔,两个中柱的顶部与二臂的尾部活动连接,所述二臂的头部与尾部均设置有一向下弯折部,两个中柱的外侧对称固定安装有油缸座一,二臂的中前部的前后两侧对称设置有油缸座二,油缸座一和油缸座二之间连接有一变幅油缸,二臂的头部与伸缩臂活动连接,伸缩臂尾部的两侧活动安装有连杆一,二臂头部弯折点的两侧活动安装有连杆二,二臂的截面为倒U字型,二臂尾部的弯折点内侧与二变幅油缸活动连接,二变幅油缸的另一端与连杆一和连杆二活动连接。本发明节省了装载空间,方便托运货物,节省了运力成本。
Middle folding type foldable suspension arm of automobile crane
一种汽车起重机可中折式折叠吊臂
2020-08-04
Patent
Electronic Resource
Chinese
IPC: | B66C Krane , CRANES |
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