An intelligent loading system for asphalt transport vehicles based on PLC control

Abstract

The present application relates to the technical field of asphalt loading, and in particular to an intelligent loading system for asphalt transport vehicles based on PLC control. It includes a PLC controller and a discharge barrel; the first discharge port and the second discharge port are symmetrically arranged on both sides of the bottom barrel wall of the discharge barrel, and the third discharge port is arranged at the bottom of the discharge barrel; the first discharge port is rotatably provided with a first guide plate at the lower edge, the second discharge port is rotatably provided with a second guide plate at the lower edge, the third discharge port is provided with a third guide plate coaxially rotating with the first guide plate at the outer edge, and the third discharge port is provided with a fourth guide plate coaxially rotating with the second guide plate at the outer edge; the loading system includes a double-side discharge mode and a middle discharge mode; the PLC controller is used to control the rotation angles of the first guide plate, the second guide plate, the third guide plate, and the fourth guide plate to switch between the double-side discharge mode and the middle discharge mode, so as to realize the in-situ loading of the transport vehicle, avoid multiple moves, and improve the loading efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of asphalt loading, and in particular to an intelligent loading system for an asphalt transport vehicle based on PLC control. Background Art

[0002] Asphalt is a dark brown complex mixture of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is in liquid state with a black surface and is soluble in carbon disulfide. It is mainly used in industries such as coatings, plastics, and rubber, as well as in road paving. At present, when using asphalt for paving roads, large transport vehicles are used to transport the finished asphalt from the asphalt mixing plant for paving. When the existing mixing plant unloads the material into the carriage of the transport vehicle, the unloading position of the unloading hopper is fixed and single. When loading, the transport vehicle needs to be moved many times, which is cumbersome and affects the unloading efficiency.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Summary of the invention

[0004] The purpose of the present application is to provide an intelligent loading system for an asphalt transport truck based on PLC control to solve or alleviate the problems existing in the above-mentioned prior art.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] An intelligent loading system for an asphalt transport vehicle based on PLC control, the loading system comprising a PLC controller and a discharge barrel;

[0007] A first discharge port and a second discharge port are symmetrically arranged on both sides of the bottom wall of the discharge barrel, and a third discharge port is arranged at the bottom of the discharge barrel;

[0008] A first guide plate is rotatably provided at the lower edge of the first discharge port, a second guide plate is rotatably provided at the lower edge of the second discharge port, a third guide plate is rotatably provided at the outer edge of the third discharge port and rotates coaxially with the first guide plate, and a fourth guide plate is rotatably provided at the outer edge of the third discharge port and rotates coaxially with the second guide plate;

[0009] The loading system includes a double-side unloading mode and a middle unloading mode;

[0010] When the loading system is in the double-side unloading mode, the third guide plate and the fourth guide plate rotate upward to form an inverted V-shaped structure to block the third unloading port; the first guide plate and the second guide plate rotate downward to open the first unloading port and the second unloading port;

[0011] When the loading system is in the middle unloading mode, the first guide plate and the second guide plate rotate to block the first unloading port and the second unloading port respectively, and the third guide plate and the fourth guide plate rotate downward to open the third unloading port;

[0012] The PLC controller is used to control the rotation angles of the first guide plate, the second guide plate, the third guide plate, and the fourth guide plate.

[0013] Preferably, the third guide plate and the fourth guide plate are axially telescopically arranged on the outer edge of the third discharge port;

[0014] The PLC controller is also used to control the telescopic lengths of the third guide plate and the fourth guide plate.

[0015] Preferably, when the loading system is in a double-side unloading mode, the ends of the third guide plate and the fourth guide plate that are close to each other are staggered and engaged with each other.

[0016] Preferably, the ends of the third guide plate and the fourth guide plate that are close to each other are made of rubber material.

[0017] Preferably, buffer plates are provided on both sides of the inner cylinder wall of the discharge cylinder and are symmetrically distributed along the axial direction of the discharge cylinder.

[0018] Preferably, a plurality of buffer plates are spaced apart and distributed along the axial direction of the discharge barrel.

[0019] Preferably, the sizes of the plurality of buffer plates spaced apart along the axial direction of the discharge barrel gradually increase as they approach the third discharge port.

[0020] Preferably, the buffer plate is connected to the inner wall of the discharge barrel in a damping rotation manner.

[0021] Preferably, the loading system comprises an anti-overflow scraper for scraping the asphalt in the carriage;

[0022] The anti-overflow scraper is connected to the silo bracket through a connecting rod;

[0023] One end of the connecting rod is rotatably connected to the silo bracket, and the other end is rotatably connected to the anti-overflow scraper;

[0024] The PLC controller is also used to control the rotation angle of the anti-overflow scraper and the connecting rod.

[0025] Preferably, a heating element is provided on the anti-overflow scraper.

[0026] Compared with the closest prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

[0027] The rotation angles of the first guide plate, the second guide plate, the third guide plate and the fourth guide plate are controlled by the PLC controller to switch between the double-side unloading mode and the middle unloading mode, so that the transport vehicle can load materials in situ, avoid multiple moves and improve loading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. Among them:

[0029] Figure 1 A schematic diagram of loading a transport vehicle according to some embodiments of the present application;

[0030] Figure 2 A schematic diagram of the double-side unloading mode structure of a unloading barrel provided according to some embodiments of the present application;

[0031] Figure 3 A schematic diagram of the structure of the middle unloading mode of the unloading barrel provided according to some embodiments of the present application;

[0032] Figure 4 A schematic diagram of the structure of the right-side unloading mode of the unloading barrel provided according to some embodiments of the present application;

[0033] Figure 5 A schematic diagram of an asphalt loading structure in a transport vehicle compartment provided according to some embodiments of the present application;

[0034] Figure 6 This is a schematic diagram of the connection between the third guide plate and the fourth guide plate provided according to some embodiments of the present application.

[0035] Description of reference numerals:

[0036] 1. Transport vehicle; 2. Discharge barrel; 3. First guide plate; 4. Second guide plate; 5. Third guide plate; 6. Fourth guide plate; 7. First discharge port; 8. Second discharge port; 9. Third discharge port; 10. Buffer plate; 11. Anti-overflow scraper; 12. Connecting rod; 13. Silo bracket; 14. Asphalt. DETAILED DESCRIPTION

[0037] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application and does not limit the present application. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present application without departing from the scope or spirit of the present application. For example, a feature shown or described as a part of an embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present application includes such modifications and variations within the scope of the appended claims and their equivalents.

[0038] In the following description, the terms "first / second / third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first / second / third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein are only for the purpose of describing the embodiments of the present disclosure and are not intended to limit the present disclosure.

[0040] In the description of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and do not require that the present application must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. The terms "connected", "connected", and "set" used in the present application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0041] The following will be combined with the attached Figure 1-6 The present application further describes in detail an intelligent loading system for an asphalt 14 transport vehicle 1 based on PLC control.

[0042] An intelligent loading system for an asphalt 14 transport vehicle 1 based on PLC control, the loading system comprising a PLC controller and a discharge barrel 2;

[0043] A first discharge port 7 and a second discharge port 8 are symmetrically arranged on both sides of the bottom wall of the discharge cylinder 2, and a third discharge port 9 is arranged at the bottom of the discharge cylinder 2;

[0044] A first guide plate 3 is rotatably provided at the lower edge of the first discharge port 7, a second guide plate 4 is rotatably provided at the lower edge of the second discharge port 8, a third guide plate 5 is rotatably provided at the outer edge of the third discharge port 9 and the fourth guide plate 6 is rotatably provided at the outer edge of the third discharge port 9 and the second guide plate 4;

[0045] The loading system includes double-side unloading mode and middle unloading mode;

[0046] When the loading system is in the double-side unloading mode, the third guide plate 5 and the fourth guide plate 6 rotate upward to form an inverted V-shaped structure to block the third unloading port 9; the first guide plate 3 and the second guide plate 4 rotate downward to open the first unloading port 7 and the second unloading port 8;

[0047] When the loading system is in the middle unloading mode, the first guide plate 3 and the second guide plate 4 rotate to block the first unloading port 7 and the second unloading port 8 respectively, and the third guide plate 5 and the fourth guide plate 6 rotate downward to open the third unloading port 9;

[0048] The PLC controller is used to control the rotation angles of the first guide plate 3 , the second guide plate 4 , the third guide plate 5 , and the fourth guide plate 6 .

[0049] The loading system includes a vehicle information identification device such as a long-distance card reader. When the transport vehicle 1 enters the site for loading, the long-distance card reader monitors and identifies the transport vehicle 1, and transmits the corresponding vehicle compartment size, loading capacity and other information to the PLC controller. The PLC controller configures the corresponding optimal loading mode, such as double-side unloading mode, middle unloading mode, or a combination of double-side unloading mode and middle unloading mode, to reduce the occurrence of asphalt 14 segregation. High-definition cameras and laser imaging radars are provided at both ends of the silo. The high-definition cameras and laser imaging radars are used to collect the position information of the loading vehicle, and the designated position is monitored in conjunction with infrared sensors, so as to facilitate monitoring and directing the transport vehicle 1 to correctly enter the designated loading area. Furthermore, the PLC controller adjusts the inclination angles of the first guide plate 3 and the second guide plate 4 according to the position information of the transport vehicle 1, the size of the compartment, the discharge speed of the asphalt 14 and the diversion control of the inverted V-shaped structure, so as to assist in guiding the asphalt 14 to the unloading route at the head and tail ends of the vehicle in the double-side unloading mode, avoiding the need to move the position of the transport vehicle 1, and realizing intelligent loading.

[0050] Asphalt 14 is composed of gravel, powder and other materials of different particle sizes. When unloading, due to the height difference, it is easy to form large-size materials around and fine-size materials in the middle, which leads to particle size segregation of asphalt 14, affecting the quality of asphalt 14 paving in the later stage and failing to meet construction needs.

[0051] In the specific embodiment of the present application, the inverted V-shaped structure is used to simultaneously divert the asphalt 14 to the first discharge port 7 and the second discharge port 8 on both sides. After entering the site, the transport vehicle 1 drives into the bottom of the silo discharge barrel 2 directly below the third discharge port 9, and the asphalt 14 is loaded by combining the double-side discharge mode with the middle discharge mode. Specifically, the double-side discharge is performed once, and then the middle discharge is performed. After one cycle, the asphalt 14 loading is completed.

[0052] The third guide plate 5 and the fourth guide plate 6 are axially telescopically arranged at the outer edge of the third discharge port 9;

[0053] The PLC controller is also used to control the telescopic length of the third guide plate 5 and the fourth guide plate 6.

[0054] In a specific embodiment of the present application, the loading system also includes a single-side unloading mode, in which the first guide plate 3 or the second guide plate 4 close to the side to be unloaded rotates downward to open the corresponding side unloading port, and the third guide plate 5 or the fourth guide plate 6 close to the side to be unloaded rotates upward and extends axially to abut the inner cylinder wall on the opposite side, and the other opposite guide plate rotates upward and extends axially to support the third guide plate 5 or the fourth guide plate 6, so that when the asphalt 14 is unevenly loaded, causing the center of gravity of the transport vehicle 1 to shift or even become unstable, the corresponding position of the carriage can be loaded on one side through the single-side unloading mode. Specifically, the single-side unloading mode includes a left-side unloading mode and a right-side unloading mode. When the loading system is in the left-side unloading mode, the PLC controller controls the third guide plate 5 to rotate upward and extend axially until the third guide plate 5 abuts against the inner wall of the unloading barrel 2, and the fourth guide plate 6 rotates upward and extends axially to assist in supporting the third guide plate 5; when the loading system is in the right-side unloading mode, the PLC controller controls the fourth guide plate 6 to rotate upward and extend axially until the fourth guide plate 6 abuts against the inner wall of the unloading barrel 2, and the third guide plate 5 rotates upward and extends axially to assist in supporting the fourth guide plate 6; the PLC controller adjusts the inclination angles of the first guide plate 3 and the second guide plate 4 according to the information of the position to be replenished in the car body, combined with the asphalt 14 discharge speed and the rotation angle of the third guide plate 5 / the fourth guide plate 6, so as to assist in guiding the unloading route of the asphalt 14 to the replenishing position in the single-side unloading mode, thereby avoiding the need to move the position of the transport vehicle 1 and realizing intelligent replenishment.

[0055] When the loading system is in the double-side unloading mode, the third guide plate 5 and the fourth guide plate 6 are staggered and engaged with each other at their ends close to each other.

[0056] In a specific embodiment of the present application, the ends of the third guide plate 5 and the fourth guide plate 6 that are close to each other are both tooth-shaped structures to enhance the sealing effect of the third discharge port 9 and the smoothness of the diversion of the asphalt 14 by the third guide plate 5 and the fourth guide plate 6 in the double-sided unloading mode.

[0057] In order to further improve the blocking effect of the third guide plate 5 and the fourth guide plate 6 on the third discharge port 9 in the double-side discharge mode, the third guide plate 5 and the fourth guide plate 6 are made of rubber material at one end close to each other. When the loading system is in the single-side discharge mode, the rubber material can further improve the stability of the third guide plate 5 and the third guide plate 5 abutting against the inner wall of the discharge barrel 2.

[0058] During conventional unloading operations, a steel pipe is usually used to load the asphalt 14 directly into the carriage. However, due to the large height difference between the carriage and the unloading port, a large impact force is generated during unloading, which can easily cause the asphalt 14 to splash around, damage the carriage and create safety hazards.

[0059] Therefore, buffer plates 10 are provided on both sides of the inner wall of the discharge barrel 2 and are symmetrically distributed along the axial direction of the discharge barrel 2 .

[0060] In a specific embodiment of the present application, the buffer plate 10 is arranged on the same side as the first discharge port 7 and the second discharge port 8 .

[0061] In order to further enhance the buffering effect on the asphalt 14 , a plurality of buffer plates 10 are distributed at intervals along the axial direction of the discharge barrel 2 .

[0062] In a specific embodiment of the present application, three buffer plates 10 are distributed at intervals along the axial direction of the discharge barrel 2 , and a total of three pairs of buffer plates 10 symmetrically distributed along the axial direction of the discharge barrel 2 are arranged in the discharge barrel 2 .

[0063] The sizes of the plurality of buffer plates 10 spaced apart along the axial direction of the discharge barrel 2 gradually increase as they approach the third discharge port 9 .

[0064] In a specific embodiment of the present application, the size of the three buffer plates 10 axially spaced apart along the discharge barrel 2 gradually increases as they approach the third discharge port 9, so that on the basis of achieving step-by-step buffering of the asphalt 14, the asphalt 14 can be guided to the middle of the discharge barrel 2. Furthermore, when the loading system is in a double-sided unloading mode, the buffer plates 10 arranged as above can improve the uniformity of the inverted V-shaped structure diversion; when the loading system is in a central unloading mode, the buffer plates 10 arranged as above can improve the accuracy of the unloading position.

[0065] In order to further enhance the buffering effect on the asphalt 14 , the buffer plate 10 is connected to the inner wall of the discharge barrel 2 in a damping rotation manner.

[0066] When the asphalt 14 is loaded and the height is higher than the carriage, when driving up and downhill in the asphalt 14 station or driving on a road with poor road conditions outside the asphalt 14 station, it is easy for overflow to scald the construction workers, and the overflowed asphalt 14 will pollute the environment, and personnel need to be arranged to clean it up in time. Therefore, after unloading in the asphalt 14 station, the transport vehicle 1 slowly drives forward to scrape the asphalt 14 material at a high place to facilitate covering and transportation, so as to avoid safety problems caused by overflow during driving.

[0067] The loading system includes an anti-overflow scraper 11 for scraping the asphalt 14 in the carriage;

[0068] The anti-overflow scraper 11 is connected to the silo support 13 via a connecting rod 12;

[0069] One end of the connecting rod 12 is rotatably connected to the silo support 13, and the other end is rotatably connected to the anti-overflow scraper 11;

[0070] The PLC controller is also used to control the rotation angles of the anti-overflow scraper 11 and the connecting rod 12 .

[0071] In a specific embodiment of the present application, the anti-overflow scraper 11 is connected to the side of the silo support 13 near the front of the transport vehicle 1 through a connecting rod 12. The connecting rod 12 can be axially retracted. The PLC controller controls the connecting rod 12 to retract according to the vehicle position and size information until the anti-overflow scraper 11 moves to the end of the vehicle compartment near the front of the vehicle compartment, and controls the connecting rod 12 to rotate until the height of the lower edge of the anti-overflow scraper 11 is lower than the height of the upper edge of the vehicle compartment. When the asphalt 14 is loaded, the transport vehicle 1 slowly drives away from the lower side of the silo, thereby realizing the anti-overflow scraper 11 to scrape the asphalt 14 above its lower edge.

[0072] The anti-overflow scraper 11 is provided with a heating element, which can not only improve the leveling effect of the anti-overflow scraper 11 but also prevent the asphalt 14 from adhering to the anti-overflow scraper 11 .

[0073] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An intelligent loading system for asphalt transport vehicles based on PLC control, characterized in that: The loading system includes a PLC controller and a discharge barrel; A first discharge port and a second discharge port are symmetrically arranged on both sides of the bottom wall of the discharge barrel, and a third discharge port is arranged at the bottom of the discharge barrel; A first guide plate is rotatably provided at the lower edge of the first discharge port, a second guide plate is rotatably provided at the lower edge of the second discharge port, a third guide plate is rotatably provided at the outer edge of the third discharge port and rotates coaxially with the first guide plate, and a fourth guide plate is rotatably provided at the outer edge of the third discharge port and rotates coaxially with the second guide plate; The loading system includes a double-side unloading mode and a middle unloading mode; When the loading system is in the double-side unloading mode, the third guide plate and the fourth guide plate rotate upward to form an inverted V-shaped structure to block the third unloading port; the first guide plate and the second guide plate rotate downward to open the first unloading port and the second unloading port; When the loading system is in the middle unloading mode, the first guide plate and the second guide plate rotate to block the first unloading port and the second unloading port respectively, and the third guide plate and the fourth guide plate rotate downward to open the third unloading port; The PLC controller is used to control the rotation angles of the first guide plate, the second guide plate, the third guide plate, and the fourth guide plate; The third guide plate and the fourth guide plate are axially telescopically arranged at the outer edge of the third discharge port; The PLC controller is also used to control the telescopic length of the third guide plate and the fourth guide plate; When the loading system is in a double-side unloading mode, the ends of the third guide plate and the fourth guide plate that are close to each other are staggered and engaged with each other.

2. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 1, characterized in that: The ends of the third guide plate and the fourth guide plate that are close to each other are made of rubber material.

3. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 1, characterized in that: Buffer plates are symmetrically distributed along the axial direction of the discharge barrel and are arranged on both sides of the inner barrel wall of the discharge barrel.

4. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 3, characterized in that: A plurality of buffer plates are distributed at intervals along the axial direction of the discharge barrel.

5. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 4, characterized in that: The sizes of the plurality of buffer plates spaced apart along the axial direction of the discharge barrel gradually increase as they approach the third discharge port.

6. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 3, characterized in that: The buffer plate is connected to the inner cylinder wall of the discharge cylinder in a damping rotation manner.

7. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 1, characterized in that: The loading system includes an anti-overflow scraper for scraping the asphalt in the carriage; The anti-overflow scraper is connected to the silo bracket through a connecting rod; One end of the connecting rod is rotatably connected to the silo bracket, and the other end is rotatably connected to the anti-overflow scraper; The PLC controller is also used to control the rotation angle of the anti-overflow scraper and the connecting rod.

8. The intelligent loading system for asphalt transport vehicles based on PLC control as claimed in claim 7, characterized in that: The anti-overflow scraper is provided with a heating element.

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