Snow clogging prevention control system and snow thrower

Abstract

The present invention relates to the field of snow throwing and snow removing. Disclosed are a snow clogging prevention control system and a snow thrower. The snow clogging prevention control system comprises a console, 3D LiDARs, and a pressure sensor, the console is used for controlling the snow thrower to switch between a manual mode and a snow clogging prevention mode, the 3D LiDARs are adapted to be mounted at the front end of the snow thrower so as to detect the volume of accumulated snow ahead of a vehicle, and the pressure sensor is adapted to be arranged on a working motor so as to detect the working pressure of the working motor; in the manual mode, the traveling speed of the snow thrower and an auger rotation speed are manually input values on the console, and in the snow clogging prevention mode, the traveling speed of the snow thrower and the auger rotation speed are adaptively adjusted on the basis of the volume of accumulated snow ahead; and the adaptive adjustment comprises: measuring a current traveling speed and the auger rotation speed, calculating the volume of accumulated snow ahead of the snow thrower by means of the 3D LiDARs, and calculating an optimal auger rotation speed at the current traveling speed on the basis of the volume of accumulated snow ahead. The present application has the advantages of reducing the risk of snow clogging in a snow thrower and being convenient to use.

Description

Anti-clogging snow control system and snow thrower

[0001] The present application claims priority to the Chinese patent application No. 202410898265.1, filed on July 5, 2024, entitled "Anti-clogging snow control system and snow thrower", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of snow throwing and snow removal, in particular to an anti-clogging snow control system and a snow thrower. BACKGROUND

[0003] Wind-blowing snow has the effect of redistributing natural snow, and the snow depth formed by it is 3-10 times thicker than natural snow, and the snow is more compact. Using a snow thrower to remove snow is a relatively efficient way of snow removal.

[0004] During the snow throwing process, the driver needs to adjust the walking speed and the auger rotation speed according to the snow thickness. When the snow thickness increases, if the walking speed is not reduced and the auger rotation speed is not increased in time, the snow throwing cylinder is prone to be clogged. The driver needs to get off the vehicle and use a shovel to unblock the snow throwing cylinder, which affects the work efficiency. In order to avoid the clogging of the snow throwing cylinder, the snow throwing auger rotation speed is increased to the maximum at a low speed, which reduces the snow removal efficiency, increases the fuel consumption, and increases the snow removal cost.

[0005] To solve the problem of snow clogging of the snow thrower, one solution is to detect the snow density sensor signal to predict the occurrence of snow clogging. First, this solution uses a double-engine setting to separate the walking and working, so it cannot be applied to a single-engine. Second, when the snow amount is small but the density is large, the snow throwing cylinder will not be clogged, but the snow density sensor will make a false judgment. Finally, the snow density sensor has a high delay, and when it detects a high snow density, the snow throwing cylinder may have already been clogged. Another solution is to add an auxiliary unblocking device. For example, adding an electric heating wire in the snow throwing cylinder, installing a high-frequency oscillator on the wall of the snow throwing cylinder, adding a compressed air nozzle in the snow throwing cylinder, and installing an unblocking motor outside the snow throwing cylinder. These solutions generally have the disadvantages of high energy consumption, bulky snow throwing device, and inconvenient maintenance.

[0006] SUMMARY

[0007] The present application provides an anti-clogging snow control system and a snow thrower to solve the problem of easy clogging of the snow thrower.

[0008] According to one aspect of the present application, a snow blocking prevention control system is provided, comprising a control console, a 3D laser radar and a pressure sensor, the control console is used to control the snow plow to switch between a manual mode and a snow blocking prevention mode, the 3D laser radar is used to be installed at the front end of the snow plow to detect the volume of snow in front of the vehicle, and the pressure sensor is used to be arranged on the working motor to detect the working pressure of the working motor; in the manual mode, the walking speed and the auger rotating speed of the snow plow are the input values on the control console, and in the snow blocking prevention mode, the walking speed and the auger rotating speed of the snow plow are adaptively adjusted according to the volume of snow in front; the adaptive adjustment comprises: detecting the current walking speed and the auger rotating speed, obtaining the volume of snow in front of the snow plow through the 3D laser radar, and calculating the optimal auger rotating speed under the current walking speed according to the volume of snow in front.

[0009] Optionally, in the step of calculating the optimal auger rotating speed under the current walking speed according to the volume of snow in front, the calculation formula is as follows:

[0010] In the formula, Q is the snow removal flow, in units of m3 / s;

[0011] V is the volume of snow, in units of m3;

[0012] t is the snow removal time, in units of s;

[0013] v is the walking speed, in units of km / h;

[0014] l is the distance in front of the vehicle, in units of m;

[0015] S is the cross-sectional area of the auger, in units of mm2;

[0016] v0 is the linear speed of the auger transmission, in units of m / s;

[0017] D is the outer diameter of the auger, in units of m;

[0018] d is the inner diameter of the auger, in units of m;

[0019] γ is the snow filling coefficient;

[0020] n is the auger rotating speed, in units of rpm;

[0021] s is the pitch of the auger, in units of m.

[0022] Optionally, in the snow blocking prevention mode, the calculated snow removal flow Q and the rated snow removal flow of the snow plow are compared, and if the snow removal flow Q is greater than the rated snow removal flow of the snow plow, it indicates that the auger speed under the current walking speed has reached the maximum value and still cannot remove the snow in front, so the walking speed is reduced to prevent snow blocking.

[0023] Optionally, in the process of reducing the walking speed to prevent snow blocking, the driving speed changes linearly with time, and the calculation formula is: v1=v-kt;

[0024] In the formula, v1 is a new value of the travel speed, v is an old value of the travel speed, k is a slope, preset in the system, and t is time.

[0025] Optionally, in the process of reducing the walking speed to prevent snow blocking, after the walking speed is reduced to zero, the snow plow auger continues to work to throw snow, the front snow is thrown out, and the working motor working pressure is reduced. After the working pressure returns to the normal working pressure, the snow plow continues to walk.

[0026] Optionally, in the step of continuing to walk after the working pressure returns to the normal working pressure, the travel speed changes linearly with time, and the calculation formula is: v1=v+kt, wherein v1 is a new value of the travel speed, v is an old value of the travel speed, k is a slope, preset in the system, and t is time.

[0027] Optionally, the snow blocking prevention control system further comprises an auger speed sensor and a walking speed sensor, both of which are inductive proximity switches. The auger speed sensor is used to detect the auger speed, and the walking speed sensor is used to detect the walking speed.

[0028] Optionally, the snow blocking prevention control system further comprises a motion controller, a working pump electromagnetic valve, and a walking pump electromagnetic valve. The motion controller is installed on the vehicle frame and is used to receive sensor signals and output signals to the working pump electromagnetic valve and the walking pump electromagnetic valve. The working pump electromagnetic valve is self-provided for the working pump and is used to control the working pump displacement. The walking pump electromagnetic valve is self-provided for the walking pump and is used to control the walking pump displacement.

[0029] Optionally, the control console comprises a walking speed control knob, an auger speed control knob, and an industrial touch screen used to display the travel speed, the auger speed, the engine speed, and the working pressure.

[0030] According to another aspect of the present application, a snow plow using the above-described snow blocking prevention control system is also provided, which comprises a vehicle body, an auger, a wheel, a cab, and a snow throwing cylinder.

[0031] In summary, the present application has at least one of the following beneficial technical effects:

[0032] 1. Both manual input of the walking speed and the auger speed for snow removal and self-adaptive adjustment of the walking speed and the auger speed through the snow blocking prevention mode can reduce the operation difficulty of the driver and have high automation;

[0033] 2. Compared with the scheme of adding a crushing disc, a resistance wire, and a gas storage tank, the present application not only saves fuel and reduces snow removal cost, but also can predict the occurrence of snow blocking in advance, reduce snow removal waiting time, has high reliability, and has high practicability;

[0034] 3. The anti-blocking snow mode adjusts the walking speed and the auger rotation speed adaptively, can fully exert the potential of the snow thrower, makes the snow thrower always operate efficiently, always runs in the rated range, and will not damage the snow thrower, and increases the service life of the snow thrower.

[0035] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for explanation by reference. In the drawings:

[0037] Fig. 1 is a schematic view of the structure of the snow thrower of the present application;

[0038] Fig. 2 is a schematic view of another perspective of the snow thrower of the present application;

[0039] Fig. 3 is a schematic view of the control principle of the anti-blocking snow control system of the present application;

[0040] Fig. 4 is a schematic view of the connection of the motion controller, the electromagnetic valve and the sensor of the present application.

[0041] Legend: 1, working pressure sensor; 2, 3D laser radar; 3, auger speed sensor; 4, walking speed sensor; 5, motion controller; 6, working pump electromagnetic valve; 7, walking pump electromagnetic valve; 8, industrial touch screen; 9, auger; 10, wheel; 11, cab; 12, snow throwing. DETAILED DESCRIPTION

[0042] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered below.

[0043] The present application will be described in further detail below with reference to Figs. 1-3.

[0044] Based on the above related technology, before the specific scheme of the following embodiments is generated, it is found that the above related technology can reduce the manual work intensity, but cannot predict the blocking of snow, can only assist the manual dredging after the blocking of snow, and has the disadvantages of high energy consumption, bulky snow throwing device, and inconvenient maintenance.

[0045] The embodiments of the present application disclose an anti-blocking snow control system and a snow thrower.

[0046] Referring to FIG. 1 and FIG. 2, the snow thrower includes a vehicle body, an auger 9, wheels 10, a cab 11, and a snow throwing cylinder 12. The vehicle body is the main structure of the snow thrower, which is used to support and connect other components. Various sensors, control systems, and power devices are installed on the vehicle body. The auger 9 is the core component of the snow thrower, which is responsible for breaking and collecting snow. The auger 9 cuts and breaks the snow through rotational motion and conveys it to the snow throwing cylinder 12; the wheels 10 are used to drive the snow thrower to move, and the rotational speed of the wheels 10 determines the driving speed of the snow thrower. By controlling the rotational speed of the wheels 10, the forward speed of the snow thrower can be adjusted to adapt to different snow thickness requirements; the cab 11 is the working space of the operator, which is equipped with a console, an industrial touch screen 8, and other operating devices. The operator can monitor and control the operating state of the snow thrower in the cab 11; the snow throwing cylinder 12 is used to throw the broken snow from the auger 9 to the designated area. The direction and angle of the snow throwing cylinder 12 can be adjusted to ensure that the snow is thrown to the appropriate position.

[0047] The working pressure sensor 1 is a piezoresistive pressure sensor installed on the working motor to detect the high-pressure side pressure of the working motor. The 3D laser radar 2 is installed above the auger 9 to detect the volume of snow in front of the vehicle. The auger speed sensor 3 and the walking speed sensor 4 are both inductive proximity switches used to detect the auger 9 speed and walking speed. The motion controller 5 is installed on the vehicle frame to receive sensor signals and output signals to the working pump solenoid valve 6 and the walking pump solenoid valve 7. The working pump solenoid valve 6 is self-contained with the working pump to control the working pump displacement. The working pump displacement affects the speed of the auger 9. The walking pump solenoid valve 7 is self-contained with the walking pump to control the walking pump displacement. The walking pump displacement affects the speed of the wheels 10. The industrial touch screen 8 is installed in the cab 11 to display various parameters such as driving speed, auger 9 speed, engine speed, working pressure, etc. and can also display a 3D model of the snow in front of the vehicle. The 3D laser radar is a kind of existing three-dimensional vision sensor, its working principle is based on laser scanning technology, can quickly obtain three-dimensional data in the environment, and realizes high-quality stereoscopic imaging through unique product structure design. For example, the IFM 3D camera, from the product structure point of view, the IFM 3D camera adopts double camera synchronous scanning technology, uses two cameras with the same resolution to obtain environment images from left and right two angles, and then generates three-dimensional point cloud data through computer stereo matching technology. In addition, the camera is also equipped with a high-precision laser scanner, which can scan the environment at high speed and high precision, so as to obtain more accurate three-dimensional data. From the product working principle point of view, the working process of the IFM 3D camera can be divided into three main steps: laser scanning, image acquisition and stereo matching. First, the laser emitted by the laser will scan the environment at a certain angle, and then the left and right two cameras will obtain the environment images at the same time. Then, the computer matches the left and right two images through stereo matching technology, calculates the three-dimensional point coordinates in the image, and finally generates accurate three-dimensional point cloud data.

[0048] Referring to FIG. 3, the snow thrower uses an anti-snow blocking control system, which includes a control console, a 3D laser radar 2, and a pressure sensor. The control console is used to control the snow thrower to switch between manual mode and anti-snow blocking mode. The 3D laser radar 2 is installed at the front end of the snow thrower to detect the volume of snow in front of the vehicle. The pressure sensor is arranged on the working motor to detect the working pressure of the working motor. In manual mode, the walking speed and auger 9 speed of the snow thrower are manually input on the control console. In anti-snow blocking mode, the walking speed and auger 9 speed of the snow thrower are self-adaptively adjusted according to the volume of snow in front. The self-adaptive adjustment includes detecting the current walking speed and auger 9 speed, measuring the volume of snow in front of the snow thrower through the 3D laser radar 2, and calculating the optimal auger 9 speed at the current walking speed according to the volume of snow in front.

[0049] The snow thrower uses an anti-clogging control system, which integrates a control console, a 3D laser radar 2, and a pressure sensor to achieve intelligent and automated high-efficiency snow removal. The system can switch between manual mode and anti-clogging mode. In manual mode, the walking speed and auger 9 speed are manually input by the operator on the control console. In anti-clogging mode, the system adjusts the walking speed and auger 9 speed according to the volume of snow in front and the pressure of the working motor. The 3D laser radar 2 detects the volume of snow in front in real time, and combined with the current walking speed and auger 9 speed, the system can calculate the most appropriate auger 9 speed to prevent the snow throwing cylinder 12 from clogging. This not only improves snow removal efficiency, reduces manual intervention, but also reduces fuel consumption and snow removal costs. The pressure sensor monitors the working pressure of the working motor in real time, and when the pressure is too high, the system automatically reduces the driving speed to further prevent clogging. This system reduces the difficulty and risk of operation for the driver in bad weather conditions, improves the safety of operation and the service life of the equipment. Through adaptive adjustment, the snow thrower can always work in the best working condition, fully exerting its snow removal potential.

[0050] The control console includes a walking speed control knob, an auger 9 speed control knob, and an industrial touch screen 8 for displaying driving speed, auger 9 speed, engine speed, and working pressure. The walking speed control knob and the auger 9 speed control knob provide the driver with a direct manual adjustment approach, allowing him to quickly and conveniently set and adjust the walking speed and auger 9 speed of the snow thrower according to the actual working conditions. This design improves the flexibility of operation and better adapts to different snow conditions and working requirements. Secondly, the industrial touch screen 8 can display key parameters such as driving speed, auger 9 speed, engine speed, and working pressure in real time, providing clear and intuitive feedback information for the driver. This design allows the driver to know the working status and performance of the snow thrower at any time, so as to make timely adjustments and decisions to ensure efficient operation of the equipment. In addition, the industrial touch screen 8 can also integrate more functions, such as switching between manual mode and anti-clogging mode, viewing sensor data and system status, diagnosing faults and debugging the system, etc. This integrated design not only improves the operability and convenience of the system, but also enhances the intelligence and automation level of the equipment.

[0051] In one embodiment, in the step of calculating the optimal auger 9 speed at the current walking speed according to the volume of snow in front, the calculation formula is as follows: Q = V / t / v / l / S / v0 / (D-d) / γ / n / s; where Q is the snow removal flow, in m3 / s; V is the snow volume, in m3; t is the snow removal time, in s; v is the walking speed, in km / h; l is the distance in front of the vehicle, in m; S is the auger cross-sectional area, in mm2; v0 is the auger transmission line speed, in m / s; D is the auger outer diameter, in m; d is the auger inner diameter, in m; γ is the snow filling coefficient; n is the auger speed, in rpm; s is the auger pitch, in m.

[0052] Formula Flow rate Q = Volume V / Time t, Time t = Distance l / Speed v, here the distance unit is meter, the time is second, so the speed unit should be m / s, but the instrument panel speed is km / h, so multiply the coefficient to convert kilometers per hour to meters per second, where 1 (km / h) = 5 / 18 (m / s).

[0053] The adaptive adjustment of walking speed and auger 9 speed according to the snow volume in front has significant advantages, which improves the snow removal efficiency, prevents snow throwing cylinder 12 from being blocked by adjusting the working parameters in real time, avoids downtime and manual dredging, ensures the continuity and smoothness of operation, saves fuel and reduces operating costs, reduces the burden on the environment, the adaptive adjustment function reduces the complexity of the driver's operation and the workload, improves safety, especially in bad weather and complex terrain conditions, avoids the risk of personnel injury, the optimized working parameters reduce the overload and wear of the equipment, prolong the service life of the snow thrower, reduce maintenance and replacement costs, flexibly respond to different thickness and density of snow, so that the snow thrower can operate efficiently in various environments, fully exert the snow removal potential of the equipment, and meet the snow removal needs in various complex conditions.

[0054] In the snow blocking prevention mode, the calculated snow removal flow rate Q and the rated snow removal flow rate of the snow thrower are compared. If the snow removal flow rate Q is greater than the rated snow removal flow rate of the snow thrower, it means that the auger 9 speed reaches the maximum value at the current walking speed, which still cannot remove the snow in front, so the walking speed is reduced to prevent snow blocking. Such design can effectively prevent the snow throwing cylinder 12 from being blocked, ensure the continuous operation of the snow thrower in an efficient state, reduce downtime and manual dredging time caused by blocking, thereby improving snow removal efficiency; at the same time, automatic adjustment of walking speed can save fuel, reduce operating costs, and reduce the difficulty of the driver's operation and workload, further improve the safety of operation, especially in bad weather and complex terrain conditions, this design can significantly reduce the overload and wear of the equipment, prolong the service life of the snow thrower, ensure that the equipment always operates in the best working state, adapt to different thickness and density of snow, and maximize the performance and reliability of the snow removal equipment.

[0055] In the process of reducing the walking speed to prevent snow blocking, the driving speed changes linearly with time, and the calculation formula is: v1 = v - kt;

[0056] In the formula, v1 is the new value of driving speed, v is the old value of driving speed, k is the slope, which is preset in the system, and t is the time.

[0057] In the process of reducing the walking speed to prevent snow blocking, after the walking speed is reduced to zero, the snow thrower auger continues to work to throw snow, and the front snow is thrown out, the working motor working pressure will be reduced, and after the working pressure is restored to normal, the snow thrower continues to walk. Such a design can ensure that when the walking speed is slowed down or even stopped due to too thick snow, the auger can still effectively handle the snow, avoid complete blocking, ensure the continuity and efficiency of snow throwing operation, and reduce downtime; at the same time, by monitoring the working pressure in real time and adjusting the walking speed according to the change, the system can automatically optimize the working state, reduce the operation burden of the driver, improve the automation level and safety of snow removal operation, especially in complex snow conditions. This design not only helps to prevent equipment overload and damage, prolongs the service life of the snow thrower.

[0058] In the step of continuing to walk after the working pressure is restored to normal, the driving speed changes linearly with time, and the calculation formula is: v1=v+kt

[0059] In the formula, v1 is the new value of the driving speed, v is the old value of the driving speed, k is the slope, which is preset in the system, and t is the time.

[0060] The snow blocking prevention control system further comprises an auger speed sensor 3 and a walking speed sensor 4, both of which are inductive proximity switches. The auger speed sensor 3 is used to detect the rotational speed of the auger 9, and the walking speed sensor 4 is used to detect the walking speed. Such a design can monitor and obtain the running state data of the auger 9 and the wheel 10 in real time, providing accurate rotational speed and driving speed information for the system, so that the snow blocking prevention control system can dynamically adjust the rotational speed of the auger 9 and the walking speed according to the current working condition, ensuring that the snow thrower always operates in the best working state, thereby effectively preventing the snow throwing cylinder 12 from being blocked and improving the snow removal efficiency. In addition, this design can help the system quickly respond to changes in snow thickness and density, automatically optimize working parameters, reduce operation errors and delays caused by manual adjustment, further improve the automation level and reliability of snow removal operation, and reduce the operation burden of the driver, improve the safety and comfort of the overall operation.

[0061] The anti-clogging snow control system also includes a motion controller 5, a working pump electromagnetic valve 6, and a walking pump electromagnetic valve 7. The motion controller 5 is installed on the vehicle frame and is used to receive sensor signals and output signals to the working pump electromagnetic valve 6 and the walking pump electromagnetic valve 7. The working pump electromagnetic valve 6 is self-contained with the working pump and is used to control the working pump displacement. The walking pump electromagnetic valve 7 is self-contained with the walking pump and is used to control the walking pump displacement. First, the motion controller 5 can comprehensively process data from various sensors, including the auger speed sensor 3, the walking speed sensor 4, the pressure sensor, and the 3D laser radar 2, thereby realizing real-time monitoring and intelligent adjustment of the snow thrower's working state. By controlling the displacements of the working pump and the walking pump, the system can accurately adjust the rotational speed of the auger 9 and the walking speed of the vehicle, ensuring that the snow thrower can work efficiently under various working conditions. This design makes the operation of the snow thrower more automated and intelligent. The motion controller 5 automatically adjusts parameters according to the snow conditions and equipment load, reducing the operator's operational burden and reliance on manual adjustment, and improving the efficiency and reliability of snow removal operations.

[0062] Referring to FIG. 4, the pressure sensor transmits a 4-20 mA current signal to the controller, and the pressure sensor current size corresponds to the pressure size. The vehicle speed sensor and the auger speed sensor transmit a 24 V voltage signal to the controller. The speed sensor outputs a voltage signal, and the controller detects the rising edge of the high level. The speed corresponds to the rising edge frequency. The controller transmits a 0-1000 mA current signal to the working pump electromagnetic valve and the walking pump electromagnetic valve. The greater the current, the greater the electromagnetic attraction, and the greater the corresponding pump opening, the faster the corresponding speed. In the anti-clogging snow mode, the auger speed sensor and the vehicle speed sensor transmit the auger speed signal and the vehicle speed signal to the controller. When a large volume of snow is detected in front of the vehicle, the controller adjusts the auger rotational speed according to the current vehicle speed. Specifically, the controller sends a current signal to the working pump electromagnetic valve, and the working pump electromagnetic valve adjusts the working pump opening to adjust the auger rotational speed. When adjusting the vehicle speed, the controller sends a current signal to the walking pump electromagnetic valve, and the walking pump electromagnetic valve adjusts the walking pump opening to adjust the vehicle speed.

[0063] The present application adopts the following technical solutions: first, the 3D laser radar 2 measures the volume of snow in front of the vehicle, and simultaneously detects the current walking speed and the auger 9 rotational speed; then, the current walking speed is kept unchanged, and the most suitable auger 9 rotational speed is calculated; second, if the auger 9 rotational speed reaches the maximum and still may clog snow, the current driving speed is reduced to the calculated value; third, the controller detects the working motor high-pressure side pressure sensor signal, and if the pressure exceeds a certain value, the driving speed is continuously reduced until the speed is zero; finally, the amount of snow in front of the vehicle decreases, and the driving speed gradually recovers to the original set value. This process is automatically executed by the controller, eliminating the need for manual operation steps, reducing the difficulty of driving the snow thrower, and fully utilizing the potential of the snow thrower to reduce energy consumption.

[0064] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A snow plow control system, characterized by: The snow thrower comprises a console, a 3D laser radar (2) and a pressure sensor, the console is used for controlling the snow thrower to switch between a manual mode and an anti-blocking mode, the 3D laser radar (2) is used for being installed at the front end of the snow thrower to detect the volume of snow in front of the vehicle, and the pressure sensor is used for being arranged on the working motor to detect the working pressure of the working motor. In the manual mode, the walking speed and the auger (9) speed of the snow thrower are manually input values on the console, and in the anti-blocking mode, the walking speed and the auger (9) speed of the snow thrower are adaptively adjusted according to the volume of snow in front. The adaptive adjustment comprises detecting the current walking speed and the auger (9) speed, measuring the volume of snow in front of the snow thrower through the 3D laser radar (2), and calculating the optimal auger (9) speed under the current walking speed according to the volume of snow in front. In the anti-blocking mode, the calculated snow removal flow Q is compared with the rated snow removal flow of the snow thrower, if the snow removal flow Q is greater than the rated snow removal flow of the snow thrower, it indicates that the auger (9) speed under the current walking speed reaches the maximum value and still cannot remove the snow in front, the walking speed is reduced to prevent snow blocking, and after the walking speed is reduced to zero, the auger (9) of the snow thrower continues to work to throw snow, the snow in front is thrown out, the working pressure of the working motor is reduced, and after the working pressure returns to the normal working pressure, the snow thrower continues to walk.

2. The anti-icing control system of claim 1, wherein: The step of calculating the optimum rotating speed of the auger at the current walking speed according to the volume of the snow in front includes the following formula: In the formula, Q is the snow removal flow, unit: m3 / s; V is the volume of snow, unit: m3; t is the snow removal time, unit: s; v is the walking speed, unit: km / h; l is the distance in front of the vehicle, unit: m; S is the cross-sectional area of the auger, unit: mm2; v0 is the linear speed of the auger transmission, unit: m / s; D is the outer diameter of the auger, unit: m; d is the inner diameter of the auger, unit: m; γ is the snow filling coefficient; n is the auger speed, unit: rpm; s is the auger pitch, unit: m.

3. The anti-icing control system of claim 2, wherein: In the process of reducing the walking speed to prevent snow blocking, the driving speed changes linearly with time, and the calculation formula is: v1=v-kt; In the formula, v1 is the new driving speed, v is the old driving speed, k is the slope, which is preset in the system, and t is the time.

4. The anti-icing control system of claim 3, wherein: In the process of reducing the walking speed to prevent snow blocking, the driving speed changes linearly with time, and the calculation formula is: v1=v-kt; In the formula, v1 is the new driving speed, v is the old driving speed, k is the slope, which is preset in the system, and t is the time.

5. The anti-snow-blockage control system according to any one of claims 1 to 4, characterized in that: The anti-blocking control system further comprises an auger speed sensor (3) and a walking speed sensor (4), the auger speed sensor (3) and the walking speed sensor (4) are both inductive proximity switches, the auger speed sensor (3) is used for detecting the auger (9) speed, and the walking speed sensor (4) is used for detecting the walking speed.

6. The anti-icing control system of claim 5, wherein: The anti-blocking control system further comprises a motion controller (5), a working pump electromagnetic valve (6) and a walking pump electromagnetic valve (7), the motion controller (5) is installed on the vehicle frame and is used for receiving sensor signals and outputting signals to the working pump electromagnetic valve (6) and the walking pump electromagnetic valve (7), the working pump electromagnetic valve (6) is self-provided for the working pump and is used for controlling the working pump displacement, and the walking pump electromagnetic valve (7) is self-provided for the walking pump and is used for controlling the walking pump displacement.

7. The anti-icing control system of claim 6, wherein: The control console comprises a walking speed control knob, an auger (9) rotation speed control knob, and an industrial touch screen (8) for displaying the traveling speed, the auger (9) rotation speed, the engine rotation speed, and the working pressure.

8. Snow thrower using the anti-clogging control system according to any one of claims 1 to 7, characterized in that: The vehicle body, the auger (9), the wheels (10), the cab (11), and the snow throwing cylinder (12) are included.

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