Think heavy industry: how to control the speed of aerial work platform safely
Aerial work truckIs a kind of widely used in ships, engineering machinery and equipment construction, municipal construction, fire control, ports and other industries, nearly ten years of rapid growth in market demand, domestic and foreign enterprises to strengthen the research in this field, especially the development of the core components of the aerial vehicle controller.
At present, the control system of domestic related products is mainly mechanical hydraulic, the action of the working arm depends on the experience and skills of the operator, and the core technology of the intelligent control system is almost monopolized by foreign countries. The intelligent control system of aerial work vehicle can reduce people's participation to the greatest extent, and ensure that the work platform is relatively smooth in the reliable range of operation, so that the aerial workers are guaranteed in the aspects of safety and comfort. From the point of view of improving the comfort of aerial work vehicle, the operation speed of working arm is controlled and processed to ensure the smooth operation of the working platform, so as to improve the quality of operation.
Speed processing method of aerial operation platform
Aerial work vehicle is generally manned operations, the need to deal with the operating speed of the work platform, in order to ensure the high-altitude work personnel safe and comfortable work. The speed processing is divided into 4 modules: the end of the stroke speed processing, the cycle rate processing, the uniform process speed processing, the acceleration and deceleration process, and the speed processing method according to the different operation state of the working platform.
Stroke end velocity processing
The working safety requirements of the working arm, make it in the undulating, telescopic and slewing movement has a certain range of constraints, the constraint position is called the end of the stroke. In order to make the working platform run smoothly, the deceleration process is started at the end of the approaching stroke, and the process is the end of the stroke.
Cycle rate processing
The linear speed of the work platform is not only related to the input value of the joystick, but also affected by the current elongation and working radius of the working arm. In order to make the platform run smoothly, it is very important to deal with the linear velocity constant of the input of the joystick.
Velocity processing in acceleration and deceleration process
In order to maintain the stability of the working platform, the speed output value can be treated gently when the working arm appears acceleration, deceleration or stop action.
To transport heavy industry from the perspective of improving the aerial working comfort point of view, puts forward the treatment method of complete speed and in high altitude working vehicle for the actual test of the method, the test results show that the platform at the end of travel, speed smooth operation process, the expected effect is achieved. The method has important theoretical guiding significance and practical application value for the current intelligent control system of aerial work vehicle in china.
