System, method and device for controlling rotation angle of blowing arm of snow blower and snow blower

Abstract

The invention discloses a system, a method and a device for controlling the rotating angle of a blowing arm of a snow blowing vehicle and the snow blowing vehicle. The control accuracy is improved, and further, the use safety of the snow blowing vehicle is improved, wherein the system comprises a blowing arm, a rotating air pipe, a fixed air pipe, a gear, a driving motor, a counting proximity switch and a controller, wherein the rotating air pipe drives the blowing arm to rotate, one end of the rotating air pipe is communicated with the air blowing arm, the fixed air pipe is communicated with the other end of the rotating air pipe, the gear is fixed with the rotating air pipe and drives the rotating air pipe to rotate, the driving motor drives the gear to rotate, the counting proximity switch is relatively fixed with the fixed air pipe, and is used for collecting the rotating tooth number of the gear when the blowing arm rotates to the preset position, and the controller is connected with the counting proximity switch through signals, is used for receiving the rotating tooth number of the gear collected by the counting proximity switch when the blowing arm rotates to the preset position, and is used for updating the tooth number collected by the counting proximity switch into the standard tooth number when the received tooth number is different from the preset standard tooth number.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a control system, method, device and a snow blower for controlling the rotation angle of a blowing arm of a snow blower. Background technique [0002] During the operation of the snow blower, it is necessary to control the rotation direction of the blowing arm of the snow blower according to the position of the blowing arm and the current operation mode. The operation modes generally include: left 90 degree rotation operation, right 90 degree rotation operation and 120 degree rotation operation Wait. [0003] In the existing technology, such as figure 1 as shown, figure 1 It is a block diagram of the control system for the rotation angle of the blowing arm of the snow blower in the prior art. The programmable logic controller PLC generally obtains the real-time position of the blowing arm through the encoder. The initial position of the blowing arm should theoreti...

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Problems solved by technology

[0004] However, if the initial position of the blowing arm of the snow blower is not the correct position due to reasons such as installation and maintenance, that is to say, the centerline of the blowing arm is not parallel to the centerline of the beam of the snow blower frame, at this time the encoder obtains The angle of the blowing arm is inconsistent with the angle formed between the blowing arm and the crossbeam, which will easily cause the control error of the blowing arm rotation angle of the snow blower, and the encoder is prone to cumulative errors, and the calibration of the encoder is also troublesome.

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