Self-propelled aloft work platform base capable of automatically keeping rotary platform balance

Abstract

The invention relates to a self-propelled chassis for an aloft work platform, which can automatically maintain the balance of a rotating platform. The self-propelled chassis comprises a frame (1), a rear axle (3), a front axle (7), a rear extensible leg (2) and a front extensible leg (5); the middle of the rear part of the frame (1) is connected with the middle of the rear axle (3) by pins, the middle of the front part of the frame (1) is connected with the middle of the front axle (7) by pins and the right side and the left side of the frame (1) are hinged with the right side and the left side of the front axle (7) by balancing cylinders (6); the rear axle (3) is provided with a balance control valve (11), a control handle of the balance control valve (11) is hinged with the rear axle; the balance control valve (11) adopts a three-position and six-way control valve, wherein, an A port is respectively connected with the left oscillating oil cylinder in a manner with a rod chamber and with the right oscillating oil cylinder in a manner without a rod chamber, while a B port is respectively connected with the left oscillating oil cylinder in a manner without a rod chamber and with the right oscillating oil cylinder in a manner with a rod chamber, and a balance valve (14) is arranged between the A port of the three-position and six-way control valve and the right oscillating oil cylinder without a rod chamber and a balance valve (14) is also arranged between the B port and the left oscillating oil cylinder without a rod chamber. The chassis can automatically maintain the balance of a rotating platform connected with the chassis.

Description

technical field [0001] The invention relates to a self-propelled aerial work platform, in particular to a chassis of a self-propelled aerial work platform. It belongs to the technical field of engineering machinery. Background technique [0002] Self-propelled aerial work platforms are mainly used in shipbuilding industry, port machinery manufacturing industry and construction industry. It is mainly composed of chassis, slewing platform, telescopic arm, suspension head, working bucket, upper operation box and oil cylinder. The chassis is mainly composed of frame, front axle, rear axle, front telescopic feet, rear telescopic feet, steering system and jacking cylinder system. Before the operation of the present invention, a rigid fixed structure was adopted between the chassis front axle and the vehicle frame, and between the rear axle and the vehicle frame of the traditional self-propelled aerial work platform. This connection method mainly has the following deficiencies: ...

AI Technical Summary

Problems solved by technology

When the ground is uneven, the slewing platform connected to the chassis will also tilt accordingly, which will affect the work and stability of the aerial work equipment

In addition, when turning on a road with a certain slope, due to the rigidity of the chassis structure, a three-point support phenomenon will be formed, which will affect the walking and climbing ability of the aerial work equipment

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