Storage type folding arm rest of aerial work platform

Abstract

The invention discloses a storage type folding arm rest of an aerial work platform. The storage type folding arm rest comprises a derricking cylinder and a rotating table and is characterized by further comprising a first arm mechanism, a second arm mechanism, a front rotating table support and a rear rotating table support; the front rotating table support and the rear rotating table support are arranged on the rotating table, and the front rotating table support is used for supporting the first arm mechanism; the rear rotating table support is used for supporting the second arm mechanism, and the second arm mechanism is contained in the first arm mechanism under the stationary state; the derricking cylinder is vertically and perpendicularly arranged on the front portion of a folding arm rest; and the derricking cylinder is connected with the first arm mechanism, and the derricking cylinder is further connected with the second arm mechanism. The derricking cylinder can drive the first arm mechanism and the second arm mechanism to move. The storage type folding arm rest of the aerial work platform is simple in structure, low in gravity center, small in using number of oil cylinders, low in cost and convenient to control, and saves space.

Description

technical field [0001] The invention relates to a folding arm frame, in particular to a storage type folding arm frame of an aerial work platform. Background technique [0002] Straight arm type and folding type are the main forms of boom structure for aerial work platforms. Compared with the straight arm type, the foldable type has a stronger ability to cross obstacles and a wider range of operations; compared with the straight arm type, the telescopic oil cylinder and telescopic system are omitted due to the hinged arms of each group. The structure is simple, light in weight, and low in cost. Based on the above advantages, folding aerial work platforms have been more and more widely used in various high-altitude working environments with complex working conditions. [0003] The traditional folding arm frame generally consists of two or more groups of arms folded together, and pads are provided between the arms of each group, and between the lowermost group of arms and the...

AI Technical Summary

Problems solved by technology

[0006] figure 1 The structure of the folding boom shown has the following disadvantages: 1. The center of gravity is high, and the stability of the whole vehicle is poor

Since the No. 2 arm 1 is placed directly above the No. 1 arm 4, the total height of the two sets of folding arms is relatively high

2. Since the two groups of arms are folded up and down, two luffing cylinders and a set of luffing mechanisms are needed to realize the luffing movement of the folding arm structure. At the same time, two sets of telescopic systems are required

3. The control program is complicated, which is not conducive to humanized operation

It is necessary to control the expansion and contraction of No. 1 arm 4 and No. 2 arm 1 at different luffing angles, otherwise, the vehicle may overturn

Images