Relay type array short-rail weighbridge group device and loading method

Abstract

The invention discloses a relay type array short rail weighbridge group device and a loading method. The relay type array short-rail weighbridge group device comprises a plurality of short-rail weighbridges, wheel position sensors and a control unit which are sequentially and adjacently arranged, the minimum size of the total length of the plurality of short rail weighers is 2Lc-L1, Lc is the length size of the carriage, L1 is the width size of the loading chute, and the length size of each short rail weigher does not exceed the wheel spacing size between two adjacent carriages; the wheel position sensor is arranged along the direction in which the plurality of short-rail weighbridges are sequentially arranged, and is used for detecting the position relationship between the wheels and the short-rail weighbridges; and the control unit is connected with the wheel position sensor and the plurality of short-rail weighers so as to acquire the wheel position and the metering data of the short-rail weighers where the wheels are located. The relay type array short rail weighbridge group device can realize relay metering and quantification and unbalance loading control in the loading process, and greatly improves the loading quality and efficiency of the rail weighbridge.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail scale loading, and particularly relates to a relay type array short rail scale group device and a loading method. Background Art

[0002] As one of the main transportation modes for the three major bulk materials (coal, iron ore, and grain), quantitative loading based on rail scales occupies an important position in the bulk material loading of railways.

[0003] Currently, for the bulk material loading based on rail scales, most of the time, when the carriage has not fully entered the load-bearing range of the rail scale, blind loading without weight detection or scribing preloading is carried out first, and then weight detection and fine loading are carried out when the carriage drives into the rail scale. However, since the length of the rail scale is limited, usually 13 - 14 meters, and the length of the carriage is in the range of 12 - 14 meters, after the carriage drives into the rail scale, the distance from its front wheel to the position of driving out of the rail scale is very short and it is extremely easy to drive out of the rail scale, and the distance of the next connected carriage from driving into this rail scale is also very short and it is extremely easy to drive into the rail scale, thus resulting in an extremely short window for the rail scale to perform weight detection on the carriage. At this time, weight detection and fine loading can only be completed by stopping the carriage after it drives into the rail scale, which greatly affects the loading speed and cannot control the distribution of materials and is extremely prone to front-back partial load.

[0004] In addition, a rapid quantitative loading station based on a large hopper scale above the railway can improve the loading efficiency, but it has a high building height, a large volume, a high cost, and can only weigh the net weight of the loaded material, and cannot perform targeted gross vehicle weight weighing according to the actual tare weight of each carriage. And the gross vehicle weight is an important index for detecting the loading result of the carriage. At the same time, this loading method cannot detect the partial load situation of the material loaded into the carriage, so disputes and penalties are often caused by overloading and partial load of the gross vehicle weight during the actual loading process. Summary of the Invention

[0005] In view of the above problems, the present invention discloses a relay type array short rail scale group device and a loading method to overcome or at least partially solve the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] On the one hand, the present invention discloses a relay - type array short rail weigher group device, which includes a plurality of short rail weighers, wheel position sensors, and a control unit arranged adjacent to each other in sequence; the minimum total length of the plurality of short rail weighers arranged adjacent to each other in sequence is 2Lc - L1, where Lc is the length dimension of the carriage and L1 is the width dimension of the loading chute, and the length dimension of each short rail weigher does not exceed the wheel spacing dimension between two adjacent carriages; the wheel position sensors are arranged along the direction in which the plurality of short rail weighers are arranged in sequence, and are used to detect the position relationship between the wheels and the short rail weighers; the control unit is connected to the wheel position sensors and the plurality of short rail weighers to obtain the wheel positions and the measurement data of the short rail weighers where the wheels are located.

[0008] Preferably, the short rail weigher adopts a type with broken rails and beams, a type with unbroken rails and beams, or a type with unbroken rails and no beams.

[0009] Preferably, the wheel position sensor adopts a grating sensor.

[0010] Preferably, the relay - type array short rail weigher group device is also provided with a carriage identifier; the carriage identifier is located at the upstream position of the relay - type array short rail weigher group device and can identify the carriage data entering the relay - type array short rail weigher group device.

[0011] On the other hand, the present invention also discloses a quantitative loading method based on the relay - type array short rail weigher group device, which is characterized in that the above - mentioned relay - type array short rail weigher group device is adopted, and specifically includes the following steps:

[0012] Step S1, weighing the empty car tare weight: Move the carriage to the relay - type array short rail weigher group device, the wheel position sensor detects the positions of the wheels in the carriage, and the control unit obtains the measurement data of the corresponding short rail weigher according to the positions of the wheels and determines the empty car tare weight of the carriage.

[0013] Step S2, loading: Drive the carriage through the loading chute, the wheel position sensor real - time detects the positions of the wheels of the carriage, and the control unit obtains the measurement data of the corresponding short rail weigher according to the positions of the wheels, and controls the loading gate and the loading chute accordingly to complete the loading operation of the carriage.

[0014] Step S3, weighing the total weight and partial load of the loaded car: After the loading is completed, the wheel position sensor detects the positions of all the wheels in the carriage, the control unit obtains the measurement data of the short rail weighers where the wheels at different positions in the carriage are located, and determines the total weight of the carriage and the front - rear partial load weight data according to the measurement data of different short rail weighers and forms a record form.

[0015] Preferably, in the step S1, the wheel position sensor detects the positions of all the wheels in the carriage, and the control unit obtains the metering data of the short rail scales corresponding to all the wheels according to the positions of the wheels, and adds the metering data of the short rail scales corresponding to different wheels in the same carriage to obtain the tare weight of the empty carriage of the carriage.

[0016] Preferably, in the step S2, during the process of driving the carriage to move, the wheel position sensor detects the position changes of all the wheels in the carriage, and the control unit obtains the metering data of the short rail scales where the wheels are located at different times according to the position changes of the wheels, and determines the change in the total weight of the carriage based on the metering data of different short rail scales, so as to control the opening degree of the loading gate and output materials to the carriage through the loading chute.

[0017] Preferably, in the step S2, during the process of driving the carriage to move, the wheel position sensor detects the position changes of all the wheels in the carriage, and the control unit obtains the metering data of the short rail scales where the wheels at different positions in the carriage are located, and determines the change in the front and rear partial load of the carriage based on the metering data of different short rail scales, so as to control the loading chute to output materials to the carriage.

[0018] Preferably, in the step S2, when the front and rear partial load of the carriage exceeds the requirement, the control loading chute extends into the carriage, and the materials in the carriage are pushed by the loading chute to adjust the material distribution in the carriage.

[0019] Preferably, in the step S3, the control unit obtains the metering data corresponding to the short rail scale, including the weight Gq of the front bogie corresponding to the front wheels and the weight Gh of the rear bogie corresponding to the rear wheels, and respectively obtains the total vehicle weight G total and the partial load weight G partial and records them to form a loading form, where G total = Gq + Gh, and G partial = Gq - Gh.

[0020] Preferably, the relay - type array short rail scale group device is also provided with a carriage identifier, and the carriage identifier is located at the upstream position of the relay - type array short rail scale group device; the control unit obtains the carriage data through the carriage identifier, and accordingly completes the control of the total weight and / or the front and rear partial load of the carriage in the step S2.

[0021] The advantages and beneficial effects of the present invention are as follows: In the relay - type array short rail - scale group device of the present invention, by arranging multiple short rail - scales adjacent to each other in sequence to form a short rail - scale group, a metering area capable of accommodating two carriages is constituted, and the length dimension of a single short rail - scale is restricted to not exceed the wheel spacing dimension between two adjacent carriages. Thus, a single short rail - scale can only accommodate the front wheels or rear wheels of a single carriage for metering and weighing. In this way, during the loading process, according to the different positions of the wheels during the movement of the carriage, the metering data of the corresponding short rail - scale can be obtained in real - time, realizing the relay metering throughout the process. Thereby, the loading progress, such as the loading quantity and the off - loading condition, can be monitored and controlled in real - time, so that the tare weight metering of the empty car, quantitative loading, gross weight metering of the loaded car, and off - loading adjustment can be achieved at one time, improving the loading quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as limiting the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the relay - type array short rail - scale group device in an embodiment of the present invention;

[0024] Figures 2 - 9 is for using Figure 1 the process schematic diagram of train quantitative loading with the shown relay - type array short rail - scale group device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The following will, in conjunction with the drawings, elaborate on the technical solutions provided by each embodiment of the present invention in detail.

[0027] Combined with Figures 1 to 9As shown, in one embodiment of the present invention, a relay array short track scale group device is disclosed, including ten short track scales 10-19 arranged adjacent to each other in sequence, a wheel position sensor 20 and a control unit. Among them, the ten short track scales 10-19 are arranged adjacent to each other in sequence to form a short track scale group, and the minimum total length dimension of the adjacent arrangement is 2Lc-L1, Lc is the length dimension of the carriage, and L1 is the width dimension of the loading chute. At the same time, the length dimension of any short track scale among the ten short track scales 10-19 does not exceed the wheel spacing dimension between two adjacent carriages, that is, it does not exceed the spacing dimension between the rear wheel of the carriage 3 and the front wheel of the carriage 4 shown in the figure, nor does it exceed the spacing dimension between the rear wheel of the carriage 4 and the front wheel of the carriage 5. The wheel position sensor 20 is arranged along the direction in which the ten short track scales 10-19 are arranged in sequence, and is used to detect the positional relationship between the wheel and the short track scale. The control unit is connected to the wheel position sensor 20 and the ten short track scales 10-19 to obtain the measurement data of the wheel position and the short track scale where the wheel is located.

[0028] In this embodiment, multiple short track scales are arranged adjacent to each other in sequence to form a short track scale group and the minimum total length is controlled to 2Lc-L1, where Lc is the length of the car and L1 is the width of the loading chute, so that the weighing of the empty car before loading and the weighing of the heavy car after loading can be completed, and the length of a single short track scale is limited to not exceed the wheel spacing between two adjacent cars, so that a single short track scale can only accommodate the front wheel or the rear wheel of a single car and perform measurement and weighing. In this way, during the loading process, the wheel position can be detected in real time and the measurement data of the corresponding short track scale can be obtained according to the different wheel positions during the movement of the car, thereby realizing relay measurement of the whole process. Therefore, according to the measurement data of different short track scales, the loading progress, such as the loading amount and the overload condition, can be monitored in real time, so that the empty car weight measurement, quantitative loading, heavy car total weight measurement and overload adjustment can be realized at one time, thereby improving the loading quality and efficiency.

[0029] In the relay - type array short - track weigher group device of this embodiment, ten short - track weighers are set according to the length dimension of a single carriage to achieve the weighing of the tare weight of an empty wagon and the total weight of a loaded wagon. Among them, in this embodiment, the length dimensions of each carriage are equal. If the length dimensions between carriages are not equal, the minimum total length of multiple short - track weigher groups is set according to the length dimensions of two adjacent carriages. In addition, when setting multiple short - track weighers, a certain redundant length Lr can also be set. At this time, the length dimension of the weighing area of this relay - type array short - track weigher group device is Lz = 2Lc - L1+Lr, where the redundant length dimension Lr can take the width dimension L1 of the loading chute. In this way, the length dimension of the weighing area of this relay - type array short - track weigher group device is approximately twice the length dimension of the carriage. In other embodiments, according to different design requirements and usage environments, the length dimensions and quantities of the short - track weighers can be adjusted to meet the usage requirements.

[0030] Combined with Figure 1 As shown, in the relay - type array short - track weigher group device of this embodiment, the short - track weighers 10 - 19 all adopt a non - broken - rail and beamless structure, that is, the complete track 21 covering all short - track weighers is arranged on the sleeper 23 equipped with the load cell 22. Among them, in this embodiment, each short - track weigher corresponds to three sleepers to meet the length dimension requirements of a single short - track weigher. At the same time, shear sensors 24 are respectively arranged at both ends of each short - track weigher to cooperate with the load cell 22 to improve the metering accuracy of the short - track weigher. Among them, the load cell 22 can adopt a rail - pad type load cell.

[0031] In this way, when obtaining the metering data of any short - track weigher, the load cell corresponding to this short - track weigher and the shear sensors at both its ends are obtained simultaneously. Based on the data of the load cell and the data of the shear sensors at both ends, the metering data of this short - track weigher can be calculated to complete the weighing of the wheels above it. The non - broken - rail weighing measurement based on the load cell and the shear sensor is a prior art and will not be introduced here. In the subsequent introduction of this embodiment, if there is no special explanation, the metering data of the short - track weigher refers to the data obtained based on the corresponding load cell and shear sensor.

[0032] Of course, in other embodiments, the short - track weigher can also adopt a broken - rail and beam - type structure, that is, each short - track weigher is provided with a section of independent track, and at the same time, a box - shaped beam is arranged below the track, and a load cell is arranged below the box - shaped beam. At this time, the load cell can adopt a column - type load cell.

[0033] In other embodiments, the short rail scale can also adopt the non - continuous - rail beam type, that is, the complete rail covering all short rail scales is arranged on the box - shaped beam, and load cells are arranged below the box - shaped beam. At this time, column - type load cells can also be used for the load cells, and shear sensors are respectively arranged at both ends of each short rail scale to improve the weighing and metering accuracy.

[0034] Combined with Figures 2 to 9 As shown, in the relay - type array short rail scale group device of this embodiment, the wheel position sensor 20 adopts a grating sensor. By adopting a grating sensor, the grating sensor is arranged horizontally at the position corresponding to the wheel height and the layout length is consistent with the total length of the ten short rail scales arranged in sequence, so that the real - time position detection of the wheels passing through this relay - type array short rail scale group device can be carried out, and thus the corresponding short rail scale can be accurately identified.

[0035] Combined with Figures 2 to 9 As shown, in the relay - type array short rail scale group device of this embodiment, there is also a car body identifier 25. Among them, the car body identifier 25 is located at the upstream position of this relay - type array short rail scale group device, for example Figure 2 the position where the second short rail scale 11 shown is located.

[0036] Through this car body identifier, the car body entering this relay - type array short rail scale group device can be identified to obtain the data of this car body, and further the control during the loading process can be completed. Among them, the acquisition of car body data can be specifically realized by means of radio frequency identification (RFID).

[0037] Next, combined with Figures 1 to 9 As shown, the operation process of using the relay - type array short rail scale group device of this embodiment for train loading is introduced, and the specific steps are as follows:

[0038] Step S1, weigh the tare weight of the empty car body. Move the car body to the relay - type array short rail scale group device, the wheel position sensor detects the positions of the wheels in the car body, and the control unit obtains the metering data of the corresponding short rail scale according to the positions of the wheels and determines the tare weight of the empty car body.

[0039] Specifically, taking the Figure 2 shown state as an example, first, move the car body 3 to this relay - type array short rail scale group device, that is, make the car body 3 completely drive into this relay - type array short rail scale group device. Then, use the wheel position sensor 20 to detect the positions of the front wheels and the rear wheels in the car body 3. The control unit respectively obtains the metering data of the corresponding short rail scale according to the determined positions of the front wheels and the rear wheels detected, that is, as Figure 2The weighing data of the fourth short rail weigher 13 corresponding to the front wheels shown and the weighing data of the first short rail weigher 10 corresponding to the rear wheels are obtained. Then, the weighing data of the fourth short rail weigher 13 is added to the weighing data of the first short rail weigher 10 to obtain the tare weight of the empty car body of the carriage 3.

[0040] Step S2, loading. The carriage is driven through the loading chute. The wheel position sensor continuously detects the wheel positions of the carriage. The control unit obtains the weighing data of the corresponding short rail weigher in real time according to the wheel positions, and accordingly controls the loading gate and the loading chute to complete the loading operation of the carriage.

[0041] Specifically, in combination with Figures 2 to 7 the state shown, the carriage 3 is driven to move to the right and pass under the loading chute 6, and the loading gate 7 and the loading chute 6 are controlled to output materials to the carriage 3. During this process, the front wheels and the rear wheels of the carriage 3 will sequentially pass over different short rail weighers, and the wheel position sensor 20 monitors the positions of the front wheels and the rear wheels in real time. The control unit obtains the weighing data of the corresponding short rail weigher in real time according to the wheel positions. For example, at the position shown in Figure 4 the weighing data of the first short rail weigher 10, the second short rail weigher 11, and the fifth short rail weigher 14 are obtained, and the total weight of the current carriage 3, that is, the car body weight and the current loading weight, is obtained by adding these three weighing data. For another example, at the position shown in Figure 6 the weighing data of the sixth short rail weigher 15 and the ninth short rail weigher 18 are obtained, and the total weight of the current carriage 3, that is, the car body weight and the current loading weight, is obtained by adding these two weighing data. The opening size of the loading gate 7 is controlled according to the real-time weighing data to control the discharge amount through the loading chute 6 and control the loading condition of the carriage 3. When the total weight of the carriage 3 reaches the loading requirement, that is, when the loading weight meets the requirement, the loading gate 7 is controlled to close and stop conveying materials to the carriage 3, thereby completing the loading operation of the carriage 3.

[0042] Step S3, weighing the total weight of the loaded car and detecting the partial load: After the loading is completed, the wheel position sensor detects the positions of all the wheels in the carriage. The control unit obtains the weighing data of the short rail weighers where the wheels are located at different positions in the carriage, and determines the total weight of the carriage and the front and rear partial load weight data according to the weighing data of different short rail weighers and forms a record form.

[0043] Specifically, in combination with Figure 7As shown, after completing the loading operation of the carriage 3 and closing the loading gate 7, the wheel position sensor 20 is used to detect the positions of the front wheels and rear wheels in the carriage 3 and obtain the metering data of the corresponding short rail scales, that is, obtain the metering data of the ninth short rail scale 18 and the tenth short rail scale 19 where the front wheels are located to obtain the front bogie weight data Gq, and the metering data of the sixth short rail scale 15 where the rear wheels are located to obtain the rear bogie weight data Gh. Based on this, the total weight Gtotal of the carriage 3 = Gq + Gh, and the offload weight Goff = Gq - Gh can be obtained respectively, and a loading form is recorded. At the same time, the tare weight of the empty carriage 3 obtained before loading can be combined to calculate and record the net weight data of the materials loaded in the carriage 3 for use as subsequent loading detection data.

[0044] In addition, in the above step S2, during the process of driving the carriage 3 to move to the right and pass under the loading chute 6 for loading, after the control unit obtains the metering data of the short rail scale where the front wheels are located and the metering data of the short rail scale where the rear wheels are located in real time according to the wheel positions, it calculates the front and rear offload data of the carriage 3 at different times, Figure 5 Taking the state shown as an example, obtain the metering data of the sixth short rail scale 15 and the seventh short rail scale 16 corresponding to the front wheels, obtain the metering data of the third short rail scale 12 and the fourth short rail scale 13 corresponding to the rear wheels, and determine the front and rear deviation data of the current carriage 3 according to the difference between the metering data corresponding to the front wheels and the metering data corresponding to the rear wheels. If the front and rear deviation data meets the requirements, the subsequent loading operation continues. If the front and rear deviation data has exceeded the required range, that is, when the loading amount at the corresponding position of the front wheels is too large, control the loading chute 6 to move downward and extend into the carriage 3, and use the forward movement of the carriage 3 to push some of the materials in the carriage 3 to the rear of the carriage, thereby reducing the front and rear deviation data until the front and rear deviation data is restored within the required range. Among them, by controlling the size of the loading chute 6 moving downward and extending into the carriage 3, the amount of material pushed can be changed.

[0045] Among them, data such as the total weight of the carriage and the front and rear deviation of the carriage can be obtained in advance through the carriage identifier 25. As Figure 2 shown, when the carriage 3 drives into the relay type array short rail scale group device, when passing through the carriage identifier 25 on the second short rail scale 11, the carriage identifier 25 can obtain the data of the carriage 3, such as the carriage model, car number and other information, and then obtain the corresponding total weight of the carriage, front and rear deviation of the carriage and other data for subsequent loading control, realizing automatic acquisition and improving the automatic control effect.

[0046] According to Figures 5 to 9 shown, when the carriage 3 moves forward and passes through the loading chute 6 for loading, the next carriage 4 connected to the carriage 3 can move synchronously and gradually drive into the relay type array short rail scale group device. When the carriage 4 moves toFigure 8 When in the position shown, that is, when the front wheels of the carriage 4 are located on the fourth short rail scale 13 and the fifth short rail scale 14, and the rear wheels of the carriage 4 are located on the first short rail scale 10 and the second short rail scale 11, the tare weight of the empty carriage 4 in the above step S1 can be obtained through the measurement data of these four short rail scales. After that, drive the carriage 4 to continue moving forward to start the loading operation in step S2, as Figure 9 shown.

[0047] By repeating the above operations, during the movement of the train, the whole process relay measurement of the loading process of each carriage can be carried out, the loading progress can be controlled in real time, and the loading quality and effect can be improved.

[0048] The above is only the specific implementation manner of the present invention. Under the above teaching of the present invention, those skilled in the art can make other improvements or deformations based on the above embodiments. Those skilled in the art should understand that the above specific description is only a better explanation of the purpose of the present invention, and the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A relay - type array short - track rail weighbridge group device, characterized in that, It includes a plurality of short track scales, wheel position sensors, and a control unit that are arranged adjacent to each other in sequence; the minimum total length of the plurality of short track scales arranged adjacent to each other in sequence is 2Lc - L1, where Lc is the length dimension of the carriage and L1 is the width dimension of the loading chute, and the length dimension of each short track scale does not exceed the wheel spacing dimension between two adjacent carriages; the wheel position sensors are arranged along the direction in which the plurality of short track scales are arranged in sequence, and are used to detect the positional relationship between the wheels and the short track scales; the control unit is connected to the wheel position sensors and the plurality of short track scales to obtain the wheel positions and the measurement data of the short track scales where the wheels are located.

2. The relay type array short rail weighbridge set device according to claim 1, characterized in that, The short track scales adopt the broken rail with beam type, the non - broken rail with beam type, or the non - broken rail without beam type.

3. The relay type array short rail weighbridge set device according to claim 1, characterized in that, The wheel position sensors adopt grating sensors.

4. The relay type array short rail weighbridge group device according to claim 1, characterized in that, The relay - type array short track scale group device is also provided with a carriage identifier; the carriage identifier is located at the upstream position of the relay - type array short track scale group device and can identify the carriage data entering the relay - type array short track scale group device.

5. A quantitative loading method based on a relay-type array short rail scale set device, characterized in that, Adopting the relay - type array short track scale group device according to any one of claims 1 - 4, specifically including the following steps: Step S1, weighing the empty car tare weight: Move the carriage to the relay - type array short track scale group device, the wheel position sensor detects the positions of the wheels in the carriage, and the control unit obtains the measurement data of the corresponding short track scale according to the positions of the wheels and determines the empty car tare weight of the carriage. Step S2, loading: Drive the carriage through the loading chute, the wheel position sensor real - time detects the positions of the wheels of the carriage, and the control unit obtains the real - time measurement data of the corresponding short track scale according to the positions of the wheels, and controls the loading gate and the loading chute accordingly to complete the loading operation of the carriage. Step S3, weighing the total weight and partial load of the loaded car: After the loading is completed, the wheel position sensor detects the positions of all the wheels in the carriage, the control unit obtains the measurement data of the short track scales where the wheels are located at different positions in the carriage, and determines the total weight of the carriage and the front - rear partial load weight data according to the measurement data of different short track scales and forms a record form.

6. The quantitative loading method according to claim 5, wherein In step S1, the wheel position sensor detects the positions of all the wheels in the carriage, the control unit obtains the measurement data of the short track scales corresponding to all the wheels according to the positions of the wheels, and adds up the measurement data of the short track scales corresponding to different wheels in the same carriage to obtain the empty car tare weight of the carriage.

7. The quantitative loading method according to claim 5, wherein In step S2, during the process of driving the carriage to move, the wheel position sensor detects the changes in the positions of all the wheels in the carriage, the control unit obtains the measurement data of the short track scales where the wheels are located at different times according to the changes in the positions of the wheels, determines the change in the total weight of the carriage according to the measurement data of different short track scales, controls the opening of the loading gate, and outputs materials to the carriage through the loading chute.

8. The quantitative loading method according to claim 5, characterized in that In the step S2, during the process of driving the carriage to move, the wheel position sensor detects the position changes of all the wheels in the carriage, and the control unit obtains the metering data of the short rail weighbridges where the wheels at different positions in the carriage are located, and determines the front-back partial load change of the carriage according to the metering data of different short rail weighbridges, so as to control the loading chute to output materials to the carriage.

9. The quantitative loading method according to claim 8, characterized in that, In the step S2, when the front-back partial load of the carriage exceeds the requirement, the loading chute is controlled to extend into the carriage, and the materials in the carriage are pushed by the loading chute to adjust the material distribution in the carriage.

10. The quantitative loading method according to claim 5, characterized in that, In the step S3, the control unit obtains the metering data corresponding to the short rail weighbridge, including the weight Gq of the front bogie corresponding to the front wheels and the weight Gh of the rear bogie corresponding to the rear wheels, and respectively obtains the total vehicle weight G total and the partial load weight G partial and records them to form a loading form, where G total = Gq + Gh, and G partial = Gq - Gh.

11. The quantitative loading method according to claim 5, wherein, The relay type array short rail weighbridge group device is also provided with a carriage identifier, and the carriage identifier is located at the upstream position of the relay type array short rail weighbridge group device; the control unit obtains carriage data through the carriage identifier, and accordingly completes the control of the total weight of the carriage and / or the front-back partial load of the carriage in the step S2.

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