Thermal insulation transportation semitrailer for hot asphalt mixture

Abstract

The utility model relates to a thermal insulation transportation semitrailer for a hot asphalt mixture. The thermal insulation transportation semitrailer comprises a semitrailer chassis, a stock bin arranged on the chassis, an energy supply device, a material conveying device, a hydraulic system, an electric control system, a weighing module and an electric heating module, the weighing module comprises a plurality of weighing sensors arranged on the chassis; the electric heating module comprises a plurality of electric heating wires and a plurality of temperature sensors; the weighing module and the electric heating module are both electrically connected with the electric control system, the weighing module feeds back the weight of materials in the stock bin to the electric control system, and the electric control system controls the electric heating module to output corresponding heat preservation heating power according to the weight of the materials in the stock bin and the temperature of the materials. The thermal insulation transportation semitrailer for the hot asphalt mixture is good in thermal insulation performance, can control the temperature of the hot asphalt mixture in real time, can weigh the hot asphalt mixture in real time, improves the quality of the hot asphalt mixture, improves the weighing efficiency, and avoids overload.

Description

Technical Field

[0001] This utility model relates to a heat-insulated semi-trailer for transporting hot asphalt mixture, belonging to the technical field of transport semi-trailers. Background Technology

[0002] Currently, most specialized semi-trailers used for transporting hot asphalt mixtures have poor sealing and lack any insulation measures, or only have insulation cotton for insulation. Due to the high thermal conductivity and rapid heat dissipation of the steel structure, the vehicles have poor insulation performance. During long-distance transport in cold seasons, this can easily lead to quality problems such as low-temperature segregation and solidification of the asphalt mixture, affecting the overall performance of the constructed road surface. Furthermore, specialized semi-trailers used for transporting hot asphalt mixtures, aggregates, and other bulk granular materials require weighing before and after loading to determine the weight of the loaded materials. Traditional methods relying on fixed-point weighbridges are inefficient, resource-intensive, and cannot promptly detect overloading. As heavy-duty transport equipment, semi-trailers are primarily subject to national overload detection using weighbridges, which suffer from high failure rates, poor accuracy, and inability to provide comprehensive coverage of roads nationwide. The problem of semi-trailer overloading persists despite repeated crackdowns, seriously endangering road traffic safety.

[0003] Therefore, there is an urgent need for a heat-insulating semi-trailer for transporting hot asphalt mixtures that has good thermal insulation performance and can control the temperature and weigh the hot asphalt mixtures in real time, so as to improve the quality of hot asphalt mixtures, improve weighing efficiency, and prevent overloading. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a semi-trailer for transporting hot asphalt mixture with good thermal insulation performance, which can control the temperature and weigh the hot asphalt mixture in real time, thereby improving the quality of hot asphalt mixture, increasing weighing efficiency, and preventing overloading.

[0005] The purpose of this utility model is achieved as follows:

[0006] A semi-trailer for insulated transport of hot asphalt mixture includes a semi-trailer chassis, a hopper mounted on the chassis, an energy supply device, a material conveying device, a hydraulic system, an electrical control system, a weighing module, and an electric heating module.

[0007] The silo is fixed to the chassis. The upper part of the silo is the inlet and the rear part is the outlet. A silo cover is installed on the upper part of the silo and a rear tailgate is installed at the rear. A conveying device for unloading asphalt material is provided at the bottom of the silo.

[0008] The power supply device is located at the front end of the chassis and is connected to the hydraulic system and the electronic control system respectively, supplying power to them respectively;

[0009] The weighing module includes several weighing sensors installed on the chassis to monitor the weight of materials in the silo in real time.

[0010] The electric heating module includes several electric heating wires and several temperature sensors. The electric heating wires are arranged around and at the bottom of the hopper, including the rear tailgate. The temperature sensors are used to measure the heating temperature of the electric heating wires.

[0011] The hopper cover, rear tailgate, and conveying device are all driven by hydraulic power provided by the hydraulic system, and their actions are controlled by the electronic control system.

[0012] Both the weighing module and the electric heating module are electrically connected to the electrical control system. The weighing module feeds back the weight of the material in the hopper to the electrical control system, and the electrical control system controls the electric heating module to output the corresponding heat preservation and heating power according to the weight and temperature of the material in the hopper.

[0013] Furthermore, the chassis includes a frame, an axle, and leaf springs; the frame is provided with a first load cell mounting seat and a second load cell mounting seat for mounting a plurality of load cells; the first load cell mounting seat is fixed to the front end of the frame, and the second load cell mounting seat is fixed to the axle and leaf springs at the rear end of the frame.

[0014] Furthermore, the number of the leaf springs is six, with eight fulcrum positions on top. At each fulcrum, a second weighing sensor mounting base is provided and a weighing sensor is installed.

[0015] Furthermore, the power supply device includes an engine and a generator; the engine drives the generator to generate electricity and provides electrical energy, and a protective cover is provided on the outside of the power supply device.

[0016] Furthermore, the conveying device includes two parallel conveying scraper chains, each comprising two annular conveying chains and a plurality of scrapers located between the two annular conveying chains.

[0017] Furthermore, the hydraulic system includes a hopper cover hydraulic cylinder, a rear cover cylinder, and a hydraulic transmission device; the hopper cover hydraulic cylinder and the rear cover cylinder respectively drive the opening and closing of the hopper cover and the rear tailgate; the hydraulic transmission device drives the material conveying device to operate through a chain and a drive shaft.

[0018] Furthermore, the electronic control system includes a remote control device, which controls the hydraulic cylinders of the hopper cover and the rear door to open and close the hopper cover and the rear door respectively, and controls the forward and reverse rotation of the hydraulic transmission device.

[0019] Furthermore, the weighing module is equipped with a weighing display instrument to display the weight of the material, and the electric heating module is equipped with a temperature control instrument to display the temperature of the material; the weighing display instrument and the temperature control instrument are installed in the cab of the semi-trailer tractor, and the load weight data and temperature data of the hot asphalt mixture insulated transport semi-trailer are uploaded to the mobile Internet platform for management in real time.

[0020] Furthermore, insulation layers are installed on the side walls, cover, and rear tailgate of the silo. The insulation materials for these layers are aluminum silicate needle-punched blankets, rock wool, or rubber-plastic insulation cotton.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This invention integrates a hopper, power supply device, material conveying device, hydraulic system, electrical control system, weighing module, and electric heating module on a semi-trailer chassis. The electric heating module heats and insulates the material within the hopper, ensuring stable material temperature and improving the transport quality of hot asphalt mixtures. The weighing module provides real-time feedback on the material weight within the hopper, preventing overloading or underloading, improving loading efficiency, and preventing overloading issues. By using the weighing and electric heating modules to monitor the material weight and temperature in real time, and then setting a matching heating and insulation power by the electrical control system, the energy required for material insulation can be significantly reduced, resulting in remarkable energy savings. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a heat-insulated transport semi-trailer for hot asphalt mixture according to the present invention.

[0024] Figure 2 This is a front view of a semi-trailer for insulated transport of hot asphalt mixture according to the present invention.

[0025] Figure 3 This is a schematic diagram of the chassis structure of a semi-trailer for insulated transport of hot asphalt mixture according to the present invention.

[0026] Figure 4 This is a schematic diagram of the hopper structure of a heat-insulated transport semi-trailer for hot asphalt mixture according to this utility model.

[0027] Figure 5 This is a schematic diagram of the power supply device for a heat-insulated transport semi-trailer of hot asphalt mixture according to the present invention.

[0028] in:

[0029] 1. Chassis; 2. Hopper; 3. Power supply device; 4. Conveying device; 6. Electrical control system; 7. Weighing module; 8. Electric heating module; 9. Hopper cover; 10. Rear tailgate; 11. Weighing sensor; 12. Weighing display instrument; 13. Electric heating wire; 14. Temperature sensor; 15. Temperature controller; 16. Frame; 17. Axle; 18. Leaf spring; 19. First weighing sensor mounting base; 20. Second weighing sensor mounting base; 21. Engine; 22. Generator; 23. Protective cover; 27. Insulation layer; 28. Hopper cover hydraulic cylinder; 29. ​​Rear door cylinder; 30. Hydraulic transmission device; 31. Remote control device. Detailed Implementation

[0030] See Figures 1-5 The present invention relates to a heat-insulated transport semi-trailer for hot asphalt mixture, comprising a semi-trailer chassis 1, a hopper 2 mounted on the chassis 1, an energy supply device 3, a material conveying device 4, a hydraulic system, an electrical control system 6, a weighing module 7, and an electric heating module 8.

[0031] The silo 2 is fixed to the chassis 1. The upper part of the silo 2 is the inlet and the rear part is the outlet. The upper part of the silo 2 is equipped with a silo cover 9 and the rear part is equipped with a rear tailgate 10. The bottom of the silo 2 is equipped with a conveying device 4 for unloading asphalt materials. The side walls of the silo 2, the silo cover 9 and the rear tailgate 10 are all equipped with a heat insulation layer 27. The heat insulation material of the heat insulation layer 27 is aluminum silicate needle-punched blanket, rock wool or rubber and plastic heat insulation cotton to prevent heat loss of hot asphalt mixture and save energy.

[0032] The conveying device 4 includes two parallel conveying scraper chains, which can increase the discharge width at the bottom of the hopper 2. The larger discharge width can avoid the phenomenon of material caking and accumulation, and at the same time improve the unloading efficiency. The conveying scraper chain includes two annular conveying chains and several scrapers located between the two annular conveying chains. The annular conveying chains rotate in annularity, driving the scrapers to move and pushing the material to the rear tailgate 10 for unloading.

[0033] The hydraulic system includes a hopper cover hydraulic cylinder 28, a rear cover cylinder 29, and a hydraulic transmission device 30; the hopper cover hydraulic cylinder 28 and the rear cover cylinder 29 respectively drive the opening and closing of the hopper cover 9 and the rear tail door 10; the hydraulic transmission device 30 drives the material conveying scraper chain of the material conveying device 4 to run through a chain and a drive shaft.

[0034] The power supply device 3 is located at the front end of the chassis 1 and is connected to the hydraulic system and the electronic control system 6 respectively, and supplies power to them respectively. It includes an engine 21 and a generator 22. The engine 21 drives the generator 22 to generate electricity and provide electrical energy. A protective cover 23 is provided on the outside of the power supply device 3.

[0035] The weighing module 7 includes several weighing sensors 11 installed on the chassis 1 and a weighing display instrument 12 that displays the weight of the material. It can monitor the weight of the material in the silo 2 in real time. When loading materials, it can effectively prevent overloading, eliminate the need for weighing on a weighbridge, improve work efficiency, and prevent overloading.

[0036] The chassis 1 includes a frame 16, an axle 17, and leaf springs 18. The frame 16 is provided with a first weighing sensor mounting seat 19 and a second weighing sensor mounting seat 20 for mounting a plurality of weighing sensors 11. The first weighing sensor mounting seat 19 is fixed to the front end of the frame 16, and the second weighing sensor mounting seat 20 is fixed to the axle 17 and leaf springs 18 at the rear end of the frame. In this embodiment, the semi-trailer has six leaf springs 18, with eight support points on top. At each support point, the second weighing sensor mounting seat 20 is provided and a weighing sensor 11 is installed.

[0037] The electric heating module 8 includes several electric heating wires 13, several temperature sensors 14, and a temperature control instrument 15 that displays the material temperature in real time; the electric heating wires 13 are arranged around and at the bottom of the hopper 2, including the rear tailgate 10; the temperature sensors 14 are used to measure the heating temperature of the electric heating wires 13.

[0038] The hopper cover 9, the rear tailgate 10, and the conveying device 4 are all driven by hydraulic power provided by the hydraulic system, and their actions are controlled by the electronic control system 6. In addition, the electronic control system 6 in this embodiment includes a remote control device 31, which controls the action of the hydraulic cylinder 28 of the hopper cover and the hydraulic cylinder 29 of the rear cover to realize the opening and closing of the hopper cover 9 and the rear tailgate 10, respectively, and controls the forward and reverse rotation of the hydraulic transmission device 30, further facilitating the control operation.

[0039] Both the weighing module 7 and the electric heating module 8 are electrically connected to the electronic control system 6. The weighing module 7 feeds back the weight of the material in the hopper 2 to the electronic control system 6. The electronic control system 6 controls the electric heating module 8 to output the corresponding heat preservation and heating power according to the weight and temperature of the material in the hopper 2, resulting in better energy saving.

[0040] The weighing display instrument 12 and temperature control instrument 15 are both installed in the cab of the semi-trailer tractor. The driver can view the data in real time and make decisions based on the data. For example, when loading cargo, the driver can determine whether the cargo has reached the maximum loading capacity based on the real-time weight displayed on the weighing display instrument 12, and thus continue or stop loading to prevent insufficient cargo or overloading. The driver can also determine whether the target heating temperature has been reached based on the heating temperature of the electric heating wire displayed on the temperature control instrument 15, and thus continue or stop heating to prevent insufficient or excessive heating, resulting in significant energy savings. Furthermore, the weighing display instrument 12 and temperature control instrument 15 can upload the cargo weight and temperature data of the hot asphalt mixture insulated transport semi-trailer to a mobile internet platform for management in real time, improving the management efficiency and transportation quality of the hot asphalt mixture transportation process.

[0041] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A semi-trailer for insulated transport of hot asphalt mixture, comprising a semi-trailer chassis (1) and a hopper (2) mounted on the chassis (1), characterized in that: It also includes a power supply device (3), a material conveying device (4), a hydraulic system, an electrical control system (6), a weighing module (7), and an electric heating module (8); The silo (2) is fixed on the chassis (1). The upper part of the silo (2) is the inlet and the rear part is the outlet. A silo cover (9) is installed on the upper part of the silo (2) and a rear tail door (10) is installed at the rear. A conveying device (4) for unloading asphalt materials is provided at the bottom of the silo (2). The power supply device (3) is located at the front end of the chassis (1) and is connected to the hydraulic system and the electrical control system (6) respectively, and supplies power to them respectively; The weighing module (7) includes several weighing sensors (11) installed on the chassis (1) to monitor the weight of materials in the silo (2) in real time. The electric heating module (8) includes several electric heating wires (13) and several temperature sensors (14). The electric heating wires (13) are arranged around and at the bottom of the hopper (2), including the rear tailgate (10). The temperature sensors (14) are used to measure the heating temperature of the electric heating wires (13). The hopper cover (9), the rear tailgate (10) and the conveying device (4) are all driven by hydraulic power provided by the hydraulic system and their actions are controlled by the electronic control system (6). The weighing module (7) and the electric heating module (8) are both electrically connected to the electric control system (6). The weighing module (7) feeds back the weight of the material in the silo (2) to the electric control system (6). The electric control system (6) controls the electric heating module (8) to output the corresponding heat preservation and heating power according to the weight and temperature of the material in the silo (2).

2. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: The chassis (1) includes a frame (16), an axle (17), and a leaf spring (18); the frame (16) is provided with a first weighing sensor mounting seat (19) and a second weighing sensor mounting seat (20) for mounting a plurality of weighing sensors (11); the first weighing sensor mounting seat (19) is fixed to the front end of the frame (16), and the second weighing sensor mounting seat (20) is fixed to the axle (17) and leaf spring (18) at the rear end of the frame.

3. The insulated transport semi-trailer for hot asphalt mixture according to claim 2, characterized in that: The number of the steel leaf springs (18) is six, and there are eight support points on the upper part. At each support point, a second weighing sensor mounting base (20) is set and a weighing sensor (11) is installed.

4. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: The power supply device (3) includes an engine (21) and a generator (22); the engine (21) drives the generator (22) to generate electricity and provide electrical energy, and a protective cover (23) is provided outside the power supply device (3).

5. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: The material conveying device (4) includes two parallel material conveying scraper chains, each comprising two annular conveying chains and several scrapers located between the two annular conveying chains.

6. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: The hydraulic system includes a hopper cover hydraulic cylinder (28), a rear cover cylinder (29), and a hydraulic transmission device (30); the hopper cover hydraulic cylinder (28) and the rear cover cylinder (29) drive the opening and closing of the hopper cover (9) and the rear tail door (10) respectively; the hydraulic transmission device (30) drives the material conveying device (4) to operate through a chain and a transmission shaft.

7. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: The electronic control system (6) includes a remote control device (31). The remote control device (31) controls the hydraulic cylinder (28) of the hopper cover and the hydraulic cylinder (29) of the rear cover to open and close the hopper cover (9) and the rear tail door (10) respectively, and controls the forward and reverse rotation of the hydraulic transmission device (30).

8. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: The weighing module (7) is equipped with a weighing display instrument (12) for displaying the weight of the material, and the electric heating module (8) is equipped with a temperature control instrument (15) for displaying the temperature of the material. The weighing display instrument (12) and the temperature control instrument (15) are installed in the cab of the semi-trailer tractor and upload the load weight data and temperature data of the hot asphalt mixture insulation transport semi-trailer to the mobile Internet platform for management in real time.

9. The insulated transport semi-trailer for hot asphalt mixture according to claim 1, characterized in that: Insulation layers (27) are provided on the side walls of the silo (2), the silo cover (9) and the rear tail door (10). The insulation material of the insulation layer (27) is aluminum silicate needle-punched blanket, rock wool or rubber and plastic insulation cotton.

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