Double-chute height adjusting device and double-chute loading equipment

By monitoring the weight, height, and vehicle position of materials in real time and adjusting the height of the fine loading chute, the problems of uneven loading and coal spillage in the double-chute loading equipment were solved, achieving efficient and precise control of the loading process.

CN223983200UActive Publication Date: 2026-03-10INNER MONGOLIA BAIYINHUA MENGDONG OPENCUT COAL IND CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing double-chute loading equipment suffers from uneven loading and coal spillage during coal loading, resulting in low loading efficiency, high labor intensity, and difficulty in achieving precise control.

Method used

The system employs a weight acquisition module, a height acquisition module, and a position acquisition module to monitor the weight, height, and vehicle position of materials in real time. The height of the fine loading chute is adjusted by a control module to ensure uniform loading.

Benefits of technology

It enables precise control of the loading process, reduces labor intensity, avoids uneven loading and coal spillage, and improves loading efficiency and accuracy.

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Abstract

The utility model discloses a double-chute height adjusting device and double-chute loading equipment, which are applied to the technical field of loading equipment and are used for solving the problem of unbalanced loading of materials in loading of the double-chute loading equipment in the prior art. The method specifically comprises the steps that a weight collecting module collects the weight of rough loading materials in a rough loading chute and the weight of fine loading materials in a fine loading chute; the height acquisition module acquires the height of the roughly loaded materials in the loading truck; the position acquisition module acquires the real-time position of a loading vehicle; the control module adjusts the height of the fine loading chute according to the weight of the rough loading materials, the weight of the fine loading materials, the height of the rough loading materials and the real-time position of the loading vehicle. Through accurate data acquisition of the weight acquisition module, the height acquisition module and the position acquisition module, key information such as the weight of rough loading materials, the weight of fine loading materials, the height of the rough loading materials and the real-time position of a loading vehicle is provided, an accurate basis is provided for the control module to adjust the height of the fine loading chute, uniform loading is ensured, and the unbalance loading problem is solved.
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Description

Technical Field

[0001] This utility model relates to the field of loading equipment technology, and in particular to a double chute height adjustment device and a double chute loading equipment. Background Technology

[0002] Railway transportation is a crucial means of transporting coal, enabling the rapid and efficient delivery of coal to users over long distances. The use of intelligent loading systems enhances the intelligence of the loading process and is an important component of intelligent coal mine construction. To achieve rapid loading, a double-chute loading system is designed, using two chutes to load the same car. The two chutes are arranged one behind the other along the train's direction of travel, with each chute loading half of the car, thus accelerating the loading process. The coarse loading chute of the double-chute loading system pre-fills the car with coal, requiring only the coal to be placed into the car. The fine loading chute requires controlling the coal discharge height to ensure no uneven loading or coal spillage.

[0003] Currently, dual-chute loading equipment faces significant challenges in coal loading operations. During the loading process, the volume of coal and the loading height often fluctuate due to the need for continuous adjustments to the coal feeder. This instability places extremely high demands on the skills of the loaders, who must rely on extensive experience and keen eyesight to judge the loading status. However, human judgment is easily affected by multiple factors such as environment and fatigue; even slight negligence can lead to uneven loading, resulting in problems such as off-center loading or coal spillage. Once such situations occur, the loaders must laboriously climb into the car to manually shovel coal, which not only increases labor intensity but also seriously affects loading efficiency. At the same time, the quantitative silo is filled with dust and the material flow is rapid, making accurate measurement of coal volume in advance a major challenge, further exacerbating the uncertainty and complexity of the loading process. Utility Model Content

[0004] This utility model provides a double chute height adjustment device and a double chute loading equipment to solve the problem of uneven material loading in existing double chute loading equipment.

[0005] The technical solution provided by this utility model is as follows:

[0006] On the one hand, this utility model provides a dual-chute height adjustment device, including: a weight acquisition module, a height acquisition module, a position acquisition module, and a control module; the dual chute includes a coarse loading chute and a fine loading chute; the coarse loading chute and the fine loading chute are connected to a quantitative bin;

[0007] The weight acquisition module is located at the bottom of the quantitative silo. The weight acquisition module is used to collect the weight of the coarse material in the coarse material chute and the weight of the fine material in the fine material chute, respectively.

[0008] The height acquisition module is located at the bottom of the quantitative silo and between the coarse loading chute and the fine loading chute. The height acquisition module is used to collect the height of the coarse loading material in the loading vehicle.

[0009] The location acquisition module is set up on the loading path of the loading vehicle and is used to collect the real-time location of the loading vehicle.

[0010] Each input terminal of the control module is connected to the weight acquisition module, height acquisition module, and position acquisition module, respectively, and the output terminal of the control module is connected to the operating mechanism of the fine loading chute. The control module is used to adjust the height of the fine loading chute according to the weight of the coarse loading material, the weight of the fine loading material, the height of the coarse loading material, and the real-time position of the loading vehicle.

[0011] Optionally, the weight acquisition module includes: at least two weight sensors; the metering chamber includes a coarse metering chamber and a fine metering chamber;

[0012] At least one weight sensor is installed at the bottom of the coarse filling quantitative bin, and at least one weight sensor is installed at the bottom of the fine filling quantitative bin; at least two weight sensors are electrically connected to the control module.

[0013] Optional, the height acquisition module includes: a detection radar;

[0014] The detection radar is located at the bottom of the quantitative silo, and is positioned between the coarse loading chute and the fine loading chute.

[0015] Optionally, the dual chute height adjustment device may also include: a signal conversion module;

[0016] The input of the signal conversion module is connected to the height acquisition module, and the output of the signal conversion module is connected to the control module; the signal conversion module is used to convert the signal type of the coarse material height from an analog signal to a digital signal.

[0017] Optionally, the position acquisition module includes: multiple through-beam photoelectric switches;

[0018] The through-beam photoelectric switch includes a transmitter and a receiver. Multiple transmitters are evenly arranged at preset intervals on one side of the loading path of the vehicle; multiple receivers are arranged opposite to the transmitters on the other side of the loading path of the vehicle.

[0019] Optionally, the dual chute height adjustment device also includes: a serial communication module;

[0020] The first end of the serial communication module is connected to the position acquisition module, and the second end of the serial communication module is connected to the control module; the serial communication module is used to transmit the real-time position of the vehicle to the control module via serial communication.

[0021] Optional, the control module includes: PLC;

[0022] The first input terminal of the PLC is connected to the weight acquisition module, the second input terminal of the PLC is connected to the signal conversion module, the third input terminal of the PLC is connected to the serial communication module, and the output terminal of the PLC is connected to the operating mechanism of the fine loading chute.

[0023] Optionally, the dual chute height adjustment device may also include: an alarm module;

[0024] The alarm module is connected to the control module and is used for audible and visual alarms.

[0025] The dual-chute height adjustment device also includes: an indicator module;

[0026] The input terminal of the indicator module is connected to the control module. The indicator module is used to provide a prompt when the loading vehicle moves to the first position, where the first position is the starting loading position of the loading vehicle.

[0027] On the other hand, this utility model provides a double-chute loading device, including: a quantitative bin, a coarse loading chute, a fine loading chute, a chute operating mechanism, and the above-mentioned double-chute height adjustment device;

[0028] The coarse loading chute and the fine loading chute are connected to the metering bin via chute operating mechanisms, and are located at the bottom of the metering bin; the dual chute height adjustment device is connected to the chute operating mechanism.

[0029] The beneficial effects of this utility model are as follows:

[0030] In this invention, precise data acquisition through the weight acquisition module, height acquisition module, and position acquisition module provides key information such as the weight of the coarse-loaded material, the weight of the fine-loaded material, the height of the coarse-loaded material, and the real-time position of the loading vehicle. This provides an accurate basis for the control module to adjust the height of the fine-loaded chute, ensuring uniform loading, effectively solving the problem of uneven loading, reducing labor intensity, and realizing refined control of the loading process.

[0031] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0033] Figure 1 This is a schematic diagram of the first structure of the double chute height adjustment device in this utility model embodiment;

[0034] Figure 2 This is a schematic diagram showing the installation location of the detection radar in an embodiment of this utility model;

[0035] Figure 3 This is a schematic diagram of the second structure of the double chute height adjustment device in this embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram showing the placement of the through-beam photoelectric switch in an embodiment of this utility model;

[0037] Figure 5 This is a schematic diagram of the third structure of the double chute height adjustment device in this utility model embodiment;

[0038] Figure 6 This is a schematic diagram of the fourth structure of the double chute height adjustment device in this utility model embodiment;

[0039] Figure 7 This is a schematic diagram of the structure of the double-chute loading equipment in this embodiment of the present invention. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0041] This utility model embodiment provides a double chute height adjustment device, see reference. Figure 1 As shown, the dual-chute height adjustment device 100 includes: a weight acquisition module 110, a height acquisition module 120, a position acquisition module 130, and a control module 140; the dual chute includes a coarse loading chute and a fine loading chute; the coarse loading chute and the fine loading chute are connected to the quantitative bin.

[0042] The weight acquisition module 110 is located at the bottom of the quantitative bin. The weight acquisition module 110 is used to collect the weight of the coarse material in the coarse material chute and the weight of the fine material in the fine material chute, respectively.

[0043] The height acquisition module 120 is located at the bottom of the quantitative bin and between the coarse loading chute and the fine loading chute. The height acquisition module 120 is used to acquire the height of the coarse loading material in the loading vehicle.

[0044] The location acquisition module 130 is set on the loading path of the loading vehicle, and the location acquisition module 130 is used to collect the real-time location of the loading vehicle.

[0045] Each input terminal of the control module 140 is connected to the weight acquisition module 110, the height acquisition module 120, and the position acquisition module 130, respectively. The output terminal of the control module 140 is connected to the operating mechanism of the fine loading chute. The control module 140 is used to adjust the height of the fine loading chute according to the weight of the coarse loading material, the weight of the fine loading material, the height of the coarse loading material, and the real-time position of the loading vehicle.

[0046] exist Figure 1 In the dual-chute height adjustment device 100 shown, a metering bin is positioned above the coarse loading chute and the fine loading chute. The metering bin holds the fine materials to be loaded via the fine loading chute and the coarse materials to be loaded via the coarse loading chute. A weight acquisition module 110 is located at the bottom of the metering bin. This module can separately acquire the weight of the coarse materials in the coarse loading chute and the weight of the fine materials in the fine loading chute, and transmit the acquired weights to the control module 140. A height acquisition module 120 is located at the bottom of the metering bin between the coarse and fine loading chutes, with its acquisition end facing downwards. When the loading vehicle reaches the initial loading position, the coarse materials begin to be loaded into the vehicle via the coarse loading chute. As the vehicle moves, the height acquisition module 120 acquires the height of the coarse materials in real time and transmits this height to the control module 140. The loading path of the loading vehicle refers to the designated running path during the loading process. The loading vehicle travels along this path, sequentially passing through the coarse loading chute and the fine loading chute. The position acquisition module 130 collects the real-time position of the loading vehicle along the loading path and transmits this real-time position to the control module 140. The control module 140 transmits the weight of the coarse loading material, the weight of the fine loading material, the height of the coarse loading material, and the real-time position of the loading vehicle to an external host in real time. This allows the external host to perform integral calculations based on the height of the coarse loading material and the real-time position of the loading vehicle to obtain the volume of the coarse loading material; determine the material density based on the weight and volume of the coarse loading material; determine the volume of the fine loading material based on the weight and density of the fine loading material; and determine the loading height of the fine loading material based on the volume of the coarse loading material, the volume of the fine loading material, and the vehicle parameters, and then feeds this loading height back to the control module 140. The vehicle parameters include the loading length and loading width of the vehicle. The control module 140 adjusts the operating mechanism of the fine-loading chute according to the loading height, thereby adjusting the height of the fine-loading chute and solving the problems of material imbalance and spillage during loading. The external host is wiredly connected to the control module 140.

[0047] In this way, through the precise data acquisition of the weight acquisition module 110, the height acquisition module 120 and the position acquisition module 130, key information such as the weight of the coarse loading material, the weight of the fine loading material, the height of the coarse loading material and the real-time position of the loading vehicle is provided. This provides an accurate basis for the control module 140 to adjust the height of the fine loading chute, ensuring uniform loading without spillage, effectively solving the problem of uneven loading, reducing labor intensity and realizing refined control of the loading process.

[0048] In practical implementation, the weight acquisition module in the dual chute height adjustment device has various structures to realize its function. The weight acquisition module includes at least two weight sensors; the quantitative bins include a coarse quantitative bin and a fine quantitative bin.

[0049] At least one weight sensor is installed at the bottom of the coarse filling quantitative bin, and at least one weight sensor is installed at the bottom of the fine filling quantitative bin; at least two weight sensors are electrically connected to the control module.

[0050] In practical applications, the coarse-filling metering bin is equipped with at least one weight sensor, each used to collect the weight of the coarse-filling material. When multiple weight sensors are used in the coarse-filling metering bin, the average value of the multiple weight sensors can be taken as the weight of the coarse-filling material. Similarly, the fine-filling metering bin is equipped with at least one weight sensor, each used to collect the weight of the fine-filling material. When multiple weight sensors are used in the fine-filling metering bin, the average value of the multiple weight sensors can be taken as the weight of the fine-filling material.

[0051] In practical implementation, the height acquisition module in the dual-chute height adjustment device has various structures to achieve its function; see [reference needed]. Figure 2 As shown, the height acquisition module includes at least: a detection radar 121;

[0052] The detection radar 121 is located at the bottom of the quantitative chamber 122, and is positioned between the coarse loading chute 123 and the fine loading chute 124.

[0053] In practical applications, the detection radar 121 is positioned at the bottom of the quantitative hopper 122, precisely between the coarse loading chute 123 and the fine loading chute 124, with its detection end facing downwards. This arrangement allows the detection radar 121 to accurately capture the height of the coarse material during loading, i.e., the accumulation height of the coarse material within the truck bed. By emitting electromagnetic waves and receiving their echoes, the detection radar 121 can non-contactly measure the distance to the material surface, thereby acquiring real-time material height information. Employing advanced ranging technology, the detection radar 121 provides high-precision material height data, ensuring accurate control during loading. Furthermore, because the detection radar 121 is a non-contact measuring device, it does not interfere with material flow and avoids measurement errors caused by material accumulation or adhesion.

[0054] In one possible implementation, see [reference] Figure 3 As shown, the dual chute height adjustment device also includes: a signal conversion module 150;

[0055] The input of the signal conversion module 150 is connected to the height acquisition module 120, and the output of the signal conversion module is connected to the control module 140; the signal conversion module 150 is used to convert the signal type of the coarse material height from an analog signal to a digital signal.

[0056] In practical applications, the height acquisition module 120, such as a detection radar, typically outputs an analog signal indicating the height of the pre-loaded material. The signal conversion module, through its internal circuitry, performs sampling, quantization, and encoding steps to convert the analog signal into a digital signal. Specifically, the signal conversion module can be implemented using an analog-to-digital converter chip and corresponding external components. By converting the analog signal into a digital signal, the control module 140 can more accurately receive and process the height of the pre-loaded material, thereby achieving more precise height adjustment. This is significant for solving off-center loading problems and improving loading efficiency and accuracy. Simultaneously, the transmission and processing of digital signals are more stable and reliable, helping to extend the lifespan of the device and reduce maintenance costs.

[0057] In practical implementation, the position acquisition module in the dual-chute height adjustment device has various structures to achieve its function; see [reference needed]. Figure 4 As shown, the position acquisition module includes at least: multiple through-beam photoelectric switches 131;

[0058] The through-beam photoelectric switch includes a transmitter 132 and a receiver 133. Multiple transmitters 132 are evenly arranged at preset intervals on one side of the loading path of the loading vehicle; multiple receivers 133 are arranged opposite to the transmitters on the other side of the loading path of the loading vehicle.

[0059] In practical applications, multiple transmitters 132 are evenly arranged at preset intervals on one side of the loading path of the loading vehicle, forming a continuous detection line. Correspondingly, multiple receivers 133 are arranged on the other side of the loading path, forming a one-to-one photoelectric relationship with the transmitters 132. Specifically, taking a coarse loading chute 4 meters apart as an example, the distance between the first and last transmitters is 16 meters, and the remaining transmitters are evenly arranged at 16-meter intervals, forming a one-to-one photoelectric relationship between the receivers and transmitters. The first transmitter is located in the first direction of the vertical projection of the coarse loading chute, and the first transmitter is 6 meters away from the vertical projection of the coarse loading chute. The last transmitter is located in the second direction of the vertical projection of the fine loading chute, and the last transmitter is 6 meters away from the vertical projection of the fine loading chute. The first direction is the forward direction of the loading vehicle along the loading path, and the second direction is the backward direction of the loading vehicle along the loading path. When the loading vehicle moves forward along the loading path, it will sequentially block the photoelectric switches 131 on the path. Once a through-beam photoelectric switch 131 is blocked by a vehicle, the light emitted by its transmitter 132 will not be received by the receiver 133, at which point the through-beam photoelectric switch 131 will generate a switching signal. This switching signal is then sent to the control module as part of the vehicle position information. After receiving the switching signal from the position acquisition module, the control module determines the real-time position of the loading vehicle on the loading path based on the signal sequence and time interval, combined with the transmitter's preset interval. In this way, the through-beam photoelectric switch configuration ensures the accuracy and real-time nature of the position information, providing reliable data support for subsequent chute height adjustment.

[0060] In one possible implementation, see [reference] Figure 5 As shown, the dual chute height adjustment device also includes: a serial communication module 160;

[0061] The first end of the serial communication module 160 is connected to the position acquisition module 130, and the second end of the serial communication module 160 is connected to the control module; the serial communication module 160 is used to transmit the real-time position of the vehicle to the control module in the form of serial communication.

[0062] In practical applications, the serial communication module 160 transmits the real-time location of the vehicle to the control module 140 via a serial communication interface, ensuring real-time updates and accurate transmission of location information. Specifically, the serial communication module 160 may include an RS-232 serial port circuit or an RS485 circuit.

[0063] In practical implementation, the control module in the double chute height adjustment device has various structures to realize its function, and the control module includes at least: PLC;

[0064] The first input terminal of the PLC is connected to the weight acquisition module, the second input terminal of the PLC is connected to the signal conversion module, the third input terminal of the PLC is connected to the serial communication module, and the output terminal of the PLC is connected to the operating mechanism of the fine loading chute.

[0065] In practical applications, the PLC transmits data based on the weight of the coarse material, the weight of the fine material, the height of the coarse material, and the real-time position of the loading vehicle to the external host in real time. The PLC then receives the fine material loading height from the external host, which is the set height of the fine material chute. The PLC controls the operating mechanism of the fine material chute by adjusting the fine material loading height to achieve the adjustment of the height of the fine material chute.

[0066] In one possible implementation, see [reference] Figure 6 As shown, the dual chute height adjustment device also includes: an alarm module 170;

[0067] The alarm module 170 is connected to the control module 140 and is used to provide audible and visual alarms.

[0068] In practical applications, when abnormal situations such as the detected weight exceeding the preset value or the loading height of the fine-packaged goods exceeding the adjustable height occur, the control module 140 controls the alarm module 170 to issue an audible and visual alarm. The alarm module 170 includes one or more of a buzzer, a speaker, and an indicator light, and the alarm mechanism may include issuing an audible alarm and / or a visual alarm.

[0069] In one possible implementation, see [reference] Figure 6 As shown, the dual chute height adjustment device also includes: an indicator module 180;

[0070] The input terminal of the indicator module 180 is connected to the control module 140. The indicator module 180 is used to provide a prompt when the loading vehicle moves to the first position, where the first position is the starting loading position of the loading vehicle.

[0071] In practical applications, when the control module 140 receives the real-time position of the loaded vehicle as the first position, the control indication module 180 provides visual prompts, such as illuminating the indicator lights inside the indication module or changing the color of the indicator inside the indication module.

[0072] Based on the same concept, this utility model also provides a double-chute loading device, see reference. Figure 7 As shown, the dual-chute loading equipment includes: a quantitative bin 122, a coarse loading chute 123, a fine loading chute 124, a chute operating mechanism 125, and the aforementioned dual-chute height adjustment device 100.

[0073] The coarse loading chute 123 and the fine loading chute 124 are respectively connected to the quantitative bin 122 through the chute operating mechanism 125. The coarse loading chute 123 and the fine loading chute 124 are located at the bottom of the quantitative bin 122. The dual chute height adjustment device 100 is connected to the chute operating mechanism 125.

[0074] In practical applications, during the loading process, the dual-chute loading equipment first stores and buffers materials through the quantitative hopper 122. The quantitative hopper 122 includes a coarse loading quantitative hopper 126 and a fine loading quantitative hopper 127. Then, according to the loading requirements and vehicle type, the position, angle, and height parameters of the coarse loading chute 123 and the fine loading chute 124 are adjusted via the chute control mechanism 125. Once the loading vehicle enters the initial loading position, as materials are loaded and the vehicle moves forward, the dual-chute height adjustment device 100 automatically adjusts the height of the fine loading chute 124 to the optimal position, ensuring that the materials fall accurately and smoothly into the truck bed.

[0075] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0076] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this utility model without departing from the spirit and scope of the embodiments of this utility model. Therefore, if these modifications and variations to the embodiments of this utility model fall within the scope of the claims of this utility model and their equivalents, then this utility model also intends to include these modifications and variations.

Claims

1. A dual chute height adjustment device, characterized by, The system comprises a weight collecting module, a height collecting module, a position collecting module and a control module; the double chute comprises a coarse loading chute and a fine loading chute; the coarse loading chute and the fine loading chute are connected with the quantitative bin; The weight collecting module is arranged at the bottom of the quantitative bin, and is used for collecting the coarse loading material weight of the coarse loading chute and the fine loading material weight of the fine loading chute respectively; The height collecting module is arranged at the bottom of the quantitative bin, and is arranged between the coarse loading chute and the fine loading chute, and is used for collecting the coarse loading material height in the loading vehicle; The position collecting module is arranged on the loading path of the loading vehicle, and is used for collecting the real-time position of the loading vehicle; The input ends of the control module are connected with the weight collecting module, the height collecting module and the position collecting module respectively, and the output end of the control module is connected with the operating mechanism of the fine loading chute; the control module is used for adjusting the height of the fine loading chute according to the coarse loading material weight, the fine loading material weight, the coarse loading material height and the real-time position of the loading vehicle. The weight collecting module comprises at least two weight sensors; the quantitative bin comprises a coarse loading quantitative bin and a fine loading quantitative bin; 2. The dual-chute height adjustment device of claim 1, wherein, At least one weight sensor is arranged at the bottom of the coarse loading quantitative bin, and at least one weight sensor is arranged at the bottom of the fine loading quantitative bin; the at least two weight sensors are electrically connected with the control module. The height collecting module comprises a detection radar; 3. The dual-chute height adjustment device of claim 1, wherein, The detection radar is arranged at the bottom of the quantitative bin, and is arranged between the coarse loading chute and the fine loading chute. Further comprising:

4. The dual-chute height adjustment device of claim 3, wherein, a signal conversion module; The input of the signal conversion module is connected with the height collecting module, and the output of the signal conversion module is connected with the control module; the signal conversion module is used for converting the signal type of the coarse loading material height from an analog signal to a digital signal. The position collecting module comprises a plurality of pair of light switches; 5. The dual-chute height adjustment device of claim 4, wherein, The pair of light switches comprises a transmitter and a receiver; a plurality of transmitters are uniformly arranged at one side of the loading path of the loading vehicle according to a preset interval; a plurality of receivers are arranged at the other side of the loading path of the loading vehicle opposite to the transmitters. Further comprising:

6. The dual-chute height adjustment device of claim 5, wherein, a serial communication module; The first end of the serial communication module is connected with the position collecting module, and the second end of the serial communication module is connected with the control module; the serial communication module is used for transmitting the real-time position of the loading vehicle to the control module in a serial communication mode. The control module comprises a PLC; 7. The dual-chute height adjustment device of claim 6, wherein, The first input end of the PLC is connected with the weight collecting module, the second input end of the PLC is connected with the signal conversion module, the third input end of the PLC is connected with the serial communication module, and the output end of the PLC is connected with the operating mechanism of the fine loading chute. Further comprising:

8. The dual chute height adjustment device of any of claims 1-7, wherein, an alarm module; The alarm module is connected with the control module, and is used for performing sound and light alarm. Further comprising:

9. The dual-chute height adjustment device of claim 8, wherein, an indication module; ​ The input end of the indicating module is connected with the control module, and the indicating module is used for prompting when the loading vehicle advances to a first position, wherein the first position is a starting loading position of the loading vehicle.

10. A dual chute car loading apparatus characterized by, Comprise: A quantitative bin, a coarse loading chute, a fine loading chute, a chute operating mechanism, and the double-chute height adjusting device according to any one of claims 1-9; The coarse loading chute and the fine loading chute are respectively connected with the quantitative bin through the chute operating mechanism, and the coarse loading chute and the fine loading chute are arranged at the bottom of the quantitative bin; and the double-chute height adjusting device is connected with the chute operating mechanism.