Blowing direction monitoring device for large fan

Abstract

The utility model discloses a device for monitoring the blowing direction of a large fan, which relates to the technical field of road snow removal equipment and comprises a display device mounted in a cab and used for displaying the blowing direction of the fan and a sensor mounted at the position, close to an air outlet, of an air pipe of the fan and used for monitoring the placement angle of a reversing device of the fan in real time. The sensor is connected with the signal processor, and the signal processor is used for preprocessing information, collected by the sensor, of the placement angle of the fan reversing device; the signal processor is connected with the control unit, and the control unit is connected with the display device; compared with the prior art, the control unit receives the position information, collected by the sensor, of the fan reversing device, processes the position information and then displays the position information through the display device, an operator can visually know the blowing direction of the fan, and safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road snow removal equipment, in particular to a monitoring device for the blowing direction of a large fan. Background Art

[0002] In winter, the snow cleaning work in areas such as roads, railways and airport runways is crucial. As the main snow removal equipment, the snow plow is equipped with a large fan to generate a strong air flow to remove snow, which significantly improves the snow removal efficiency. The existing snow removal equipment usually adopts a blower with a fixed wind direction, resulting in the inability to flexibly adjust the wind direction during operation, which affects the snow cleaning efficiency. Therefore, some snow plows with the function of adjusting the fan direction have emerged on the market. However, during the snow removal process, the operator needs to continuously switch the blowing direction many times, resulting in the operator being unable to determine the blowing direction of the fan. Generally, the fan is installed at the rear of the equipment, and the operator cannot see it either. Therefore, it brings inconvenience to the operator and increases the risk of misoperation. Content of the Utility Model

[0003] The purpose of the utility model is to provide a monitoring device for the blowing direction of a large fan, which can solve the problem that it is difficult for the operator to know the working direction of the large fan of the existing snow plow, thus bringing inconvenience to the operator and increasing the risk of misoperation.

[0004] To solve the above problems, the technical solution adopted by the utility model is: this monitoring device for the blowing direction of a large fan includes a display device installed in the cab for displaying the blowing direction of the fan and a sensor installed near the air outlet of the fan air duct for real-time monitoring of the placement angle of the fan commutation device; the sensor is connected to a signal processor, and the signal processor is used for preprocessing the information of the placement angle of the fan commutation device collected by the sensor; the signal processor is connected to a control unit, and the control unit is connected to the display device.

[0005] In the technical solution of the above monitoring device for the blowing direction of a large fan, a more specific technical solution may also be: the fan commutation device is hinged on the air duct opening of the fan, and the fan commutation device is controlled by a hydraulic cylinder to turn up and down. When the fan commutation device descends and its air inlet is sleeved with the air outlet of the fan air duct, the side wall of the air inlet touches the sensor.

[0006] In some possible implementation schemes, the fan commutation device includes a commutation pipeline, which is provided with an air inlet channel and an air outlet channel. The air inlet of the air inlet channel and the air outlet of the air outlet channel are arranged on the same side. The air inlet channel and the air outlet channel are separated by a windshield, and the air outlet of the air inlet channel is communicated with the air inlet of the air outlet channel.

[0007] In some possible embodiments, the sensor, the signal processor, the display device, and the control unit are all electrically connected.

[0008] In some possible embodiments, the display device is a liquid crystal display screen.

[0009] In some possible embodiments, the sensor is a displacement sensor.

[0010] Due to the adoption of the above technical solutions, the present utility model has the following beneficial effects compared with the prior art:

[0011] 1. Since a sensor is installed near the air outlet of the fan air duct and a display device is installed in the cab, the sensor transmits the information collected about the raising or lowering of the fan reversing device to the signal processor. The signal processor preprocesses the received information and then transmits it to the control unit. The control unit sends the processed data or information to the display device, and the display device displays the air blowing direction information of the large fan, realizing the real-time display of the air blowing direction of the large fan. The operator can intuitively understand the operating state of the fan, improving safety.

[0012] 2. By processing the air blowing direction information collected by the sensor through the signal processor, the error is reduced and the measurement accuracy is improved.

[0013] 3. The display device adopts a liquid crystal display screen, with a clear display effect, facilitating the operator to read. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is a state diagram of the fan reversing device of the present utility model in the lowered state.

[0016] Figure 3 is a monitoring block diagram of the present utility model.

[0017] Description of the marks in the figure:

[0018] Fan air duct 1, air outlet of the fan air duct 1-1, fan reversing device 2, air inlet 2-1, air inlet channel 2-2, air outlet channel 2-3, air outlet 2-4, wind deflector 2-5, sensor 3, signal processor 4, control unit 5, hinge shaft 6, hydraulic cylinder 7, display device 8. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the above-mentioned objects, features, and advantages of the present utility model easier to understand, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Many specific details are set forth in the following description in order to fully understand the present utility model, but the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "middle", "length", "width", "", "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", "radial", "circumferential", etc. is the orientation or positional relationship given in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] As Figure 3 The large fan blowing direction monitoring device shown includes a display device 8 installed in the cab for displaying the blowing direction of the fan and a sensor 3 installed near the air outlet of the fan air duct 1 for real-time monitoring of the placement angle of the fan commutation device 2; the sensor 3 is connected to a signal processor 4, and the signal processor 4 is used for preprocessing the information on the placement angle of the fan commutation device 2 collected by the sensor 3; the signal processor is connected to a control unit 5, and the control unit is connected to the display device 8. The control unit sends the processed data or information to the display device, and the display device displays the fan blowing direction information determined by the raising or lowering of the fan commutation device, realizing the real-time display of the large fan blowing direction. The operator can intuitively understand the operating state of the fan, improving safety; the sensor, the signal processor, the display device, and the control unit are all electrically connected. The display device is a liquid crystal display screen, and the sensor is a displacement sensor.

[0022] As Figure 1 and Figure 2In the shown embodiment, the fan reversing device 2 is hinged to the fan air duct opening through a hinge shaft 6, and the turning of the fan reversing device 2 is controlled by a hydraulic cylinder 7 to rise or fall. When the fan reversing device 2 descends and its air inlet 2-1 is sleeved with the air outlet 1-1 of the fan air duct, the side wall of the air inlet 2-1 touches the sensor 3. The fan reversing device includes a reversing duct, which is provided with an air inlet passage 2-2 and an air outlet passage 2-3. The air inlet 2-1 of the air inlet passage 2-2 and the air outlet 2-4 of the air outlet passage 2-3 are arranged on the same side. The air inlet passage 2-2 and the air outlet passage 2-3 are separated by a wind baffle 2-5, and the air outlet of the air inlet passage is communicated with the air inlet of the air outlet passage; when the side wall of the air inlet touches the sensor 3, the sensor collects the touched signal, sends the signal to the information processor for preprocessing, and then transmits the preprocessed information to the control unit. The control unit sends the processed data or information to the display device, which is displayed by the display. The operator can intuitively know that the blowing direction of the wind at this time is opposite to the blowing direction of the fan air outlet; when the fan reversing device 2 rises, the side wall of the air outlet 2-1 leaves the sensor 3, the sensor collects the non-touch signal, sends the signal to the information processor for preprocessing, and then transmits the preprocessed information to the control unit. The control unit sends the processed data or information to the display device, which is displayed by the display. The operator can intuitively know that the blowing direction of the wind at this time is the same as the blowing direction of the fan air outlet.

Claims

1. A monitoring device for the blowing direction of a large fan, characterized in that: It includes a display device installed in the cab for displaying the blowing direction of the fan and a sensor installed near the air outlet of the fan air duct for real-time monitoring of the placement angle of the fan commutation device; the sensor is connected to a signal processor, and the signal processor is used to preprocess the information on the placement angle of the fan commutation device collected by the sensor; the signal processor is connected to a control unit, and this control unit is connected to the display device.

2. The large fan blowing direction monitoring device according to claim 1, characterized in that: The fan commutation device is hinged on the air duct opening of the fan and is controlled by a hydraulic cylinder to turn up and down. When the fan commutation device descends and its air inlet is sleeved with the air outlet of the fan air duct, the side wall of the air inlet touches the sensor.

3. The large fan blowing direction monitoring device according to claim 1 or 2, characterized in that: The fan commutation device includes a commutation pipeline, and this commutation pipeline is provided with an air inlet channel and an air outlet channel. The air inlet of the air inlet channel and the air outlet of the air outlet channel are arranged on the same side. The air inlet channel and the air outlet channel are separated by a wind baffle, and the air outlet of the air inlet channel is communicated with the air inlet of the air outlet channel.

4. The large fan blowing direction monitoring device according to claim 1, characterized in that: The sensor, the signal processor, the display device and the control unit are all electrically connected.

5. The large fan blowing direction monitoring device according to claim 4, characterized in that: The display device is a liquid crystal display screen.

6. The large fan blowing direction monitoring device according to claim 5, characterized in that: The sensor is a displacement sensor.

Images