High-performance scissors-fork type aerial work platform hydraulic system

Abstract

The invention relates to a high-performance scissors-fork type aerial work platform hydraulic system comprising an oil tank, a steering oil cylinder, a walking motor, a walking controller and a lifting oil cylinder. A hydraulic pump is connected with a triple electromagnetic reversing valve. The triple electromagnetic reversing valve comprises a first three-position six-way O-shaped-valve elementelectromagnetic valve, a second three-position six-way Y-shaped-valve element electromagnetic valve and a third two-position six-way O-shaped-valve element electromagnetic valve. A walking control valve is arranged on a walking oil way between the second electromagnetic valve and the walking motor. The walking control valve comprises a shuttle valve, a balance valve, a flow distributing and collecting valve, a two-position six-way electromagnetic reversing valve and a trailing valve, wherein the shuttle valve communicates with a walking brake oil channel. The high-performance scissors-fork type aerial work platform hydraulic system can achieve the functions of steering, walking, rapid releasing of walking brake and lifting driving on the work platform, lowers the integration degree and isconvenient to maintain, the climbing capacity of the work platform is effectively improved, the speed can be controlled when the work platform goes down a slope, low-speed travel shake is avoided, andthe overall performance of the aerial work platform is greatly improved.

Description

technical field [0001] The invention relates to a hydraulic system of a high-performance scissor type high-altitude operation platform, belonging to the technical field of high-altitude operation equipment. Background technique [0002] With the development of social science and technology, scissor-type aerial work platforms have spread to every corner of social life. Its main function is to transport workers to high altitudes for operations or unload goods. The lifting has high stability, the wide operating platform and high carrying capacity make the high-altitude operation wider and suitable for multiple people to work at the same time. The user can control the mechanical lifting and walking without getting off the lifting platform. It is an ideal high-altitude operation equipment for efficient and safe production of modern enterprises by controlling the equipment to travel to other working places on the table. [0003] The scissor-type aerial work platform adopts hydrau...

AI Technical Summary

Problems solved by technology

[0003] The scissor-type aerial work platform adopts hydraulic feeding and mechanical drive, and realizes the operation requirements through the hydraulic system. At present, the hydraulic system of the scissor-type aerial work platform has the following disadvantages: (1) weak climbing; (2) low-speed walking vibration; (3) The speed of the vehicle is out of control when going downhill; (4) When the load is too low, the brakes cannot be released, and there is abnormal noise; (5) When walking, there is a sudden turn and there is a setback; (6) High integration, inconvenient maintenance; (7) When the handle is suddenly released while walking, the vehicle will have a large impact when parking

Due to the above shortcomings, the performance of the aerial work platform needs to be improved. Therefore, there is an urgent need for a hydraulic system to solve the above problems

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