Snow sweeper cold air blowing automatic control device and method based on pressure feedback
An automatic control device and technology for snow removal vehicles, applied in fluid pressure actuation devices, snow surface cleaning, cleaning methods, etc., can solve the problem of poor ability to adapt to road conditions and road snow thickness, inability to effectively ensure constant wind pressure and energy saving, etc. problem, to achieve the effect of improving the snow blowing and snow removal effect, real-time adjustment, and improving the cleaning quality
Inactive Publication Date: 2015-02-25
CHANGAN UNIV
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Problems solved by technology
[0005] Aiming at the defects and deficiencies in the prior art, the purpose of the present invention is to provide a pressure feedback-based automatic control device for cold air blowing of snow removal vehicles and its control method, so as to solve the problem that the existing cold air blower has poor ability to adapt to road conditions and road snow thickness, and cannot Effectively ensure constant wind pressure and energy saving during work
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Embodiment
[0079] (A) The PLC controller 52 detects whether the left lift cylinder 3 of the fan and the right lift cylinder 4 of the fan are at the limit position through the left lift limit switch 23 and the right lift limit switch 24 of the blower fan. When the lifting cylinder 4 is not at the rising limit position, the PLC controller 52 controls the rising of the left lifting cylinder 3 of the fan through the left lifting proportional valve 34 of the fan, and controls the rising of the right lifting cylinder 4 of the fan through the right lifting proportional valve 35 of the fan, so that the left and right lifting cylinders are at the limit position, then close the electric current of the left lift proportional valve 34 of the blower fan and the right lift proportional valve 35 of the blower fan;
[0080] (B) Select the working air duct through the operation panel 53, the PLC controller 52 opens the corresponding air duct according to the selected air duct, and closes the unused air du...
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The invention provides a snow sweeper cold air blowing automatic control device and method based on pressure feedback. The control device comprises a hydraulic oil tank, a fan cylinder hydraulic system, a fan motor hydraulic system and a PLC (Programmable Logic Controller) control system, wherein the fan cylinder hydraulic system comprises a vehicle-mounted engine, a hydraulic pump, a left fan elevating cylinder, a right fan elevating cylinder, an air channel converting cylinder, a left air door cylinder and a right air door cylinder; the fan motor hydraulic system comprises a fan engine, a fan variable pump, a fan variable pump discharge adjusting mechanism, a fan variable pump discharge control electromagnetic valve, an oil change pump and a fan motor; the control method comprises the steps of detecting the limit positions of the cylinders through a limiting switch, detecting the air pressure through an air pressure sensor and controlling the actions of the cylinders through the PLC. Therefore, the self-adaptive adjustment on the air pressure of the fan and the ground is realized, and the snow blowing and sweeping effect is improved.
Description
technical field [0001] The invention belongs to the field of road snow removal, and relates to a snow removal vehicle, in particular to a pressure feedback-based automatic control device and method for cold air blowing of a snow removal vehicle. Background technique [0002] In the Northeast and Northwest of China, the snowfall lasts for a long time in winter and the amount of snowfall is large, which seriously affects the normal traffic of roads and airports. Airports, in particular, are most affected by snowfall and require efficient and high-quality snow blowing equipment. [0003] According to different snow thicknesses, the combined equipment used for snow removal at airports is different. Generally, the combined snow removal is carried out by snow throwing, snow pushing, snow sweeping and snow blowing equipment, among which snow blowing equipment is essential. For different thicknesses of snow, the use of different blower engine power is the key to high-quality snow b...
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IPC IPC(8): E01H5/04F15B11/16
Inventor 张军司癸卯宋建安雷元肖婷婷李鹏司微肖鹏张铁匠
Owner CHANGAN UNIV