A release agent spraying system for asphalt mixture transport vehicle bodies

Abstract

This utility model discloses a release agent spraying system for asphalt mixture transport vehicle bodies. The technical solution is as follows: it includes a release agent tank. The release agent in the tank is pressurized by a pressure pump and transported along pipelines to multiple nozzles of two spray pipes installed on the upper part of the spraying shed. The spray pipes are supported by side supports. The two spray pipes are connected in the center by a lifter to adjust the spraying angle to achieve spraying of transport vehicle bodies of different widths. The asphalt mixture transport vehicle body release agent spraying system provided by this utility model, along with its lifter, supports, and pressure control device, automatically sprays the release agent through the pressure pump to the adjustable-angle spray pipes. This solves the problems of low efficiency and poor safety of manual spraying, achieves uniform spraying effect, and prevents the release agent from spreading and polluting the environment. It has the advantages of improving spraying efficiency, ensuring operational safety, achieving uniform spraying, and reducing material waste and environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of release agent spraying, specifically to a release agent spraying system for the body of an asphalt mixture transport vehicle. Background Technology

[0002] During highway pavement construction, the interior of asphalt mixture transport vehicles needs to be sprayed with a release agent to prevent asphalt from sticking during unloading. Traditional methods have several drawbacks: First, manual spraying inside the truck bed is not only labor-intensive and inefficient, but also poses a safety hazard of falls from heights. Second, manual spraying makes it difficult to ensure the uniform distribution of the release agent, often resulting in missed areas or excessive application, affecting the anti-sticking effect and wasting materials. Third, open-air spraying causes the release agent to spread into the surrounding environment, polluting the work environment and increasing material loss. Furthermore, existing equipment cannot automatically adjust the spraying angle according to different truck bed widths, leading to incomplete coverage of corners and edges. These technical deficiencies severely restrict construction efficiency and quality, necessitating the development of a new intelligent spraying system to solve these problems. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a system for spraying a release agent onto the body of an asphalt mixture transport vehicle.

[0004] This utility model is achieved through the following technical solution:

[0005] This application provides a release agent spraying system for asphalt mixture transport vehicle bodies. The technical solution is as follows: it includes a release agent tank, in which the release agent is pressurized by a pressure pump and transported along pipelines to multiple nozzles of two spray pipes installed on the upper part of the spraying shed. The spray pipes are supported by side supports, and the spraying angle of the two spray pipes is adjusted by a centrally connected lifter to achieve spraying of transport vehicle bodies of different widths.

[0006] Furthermore, this application also proposes that the lifting device includes a drive motor fixed to the top of the spray booth, the drive end of the drive motor being threadedly connected to the lifting block via a threaded rod, and the two ends of the lifting block being hinged and fixed to the spray pipe.

[0007] Furthermore, this application also proposes that the lifting block has multiple guide holes, and a guide rod fixed to the spray booth is slidably connected in the guide holes.

[0008] Furthermore, this application also proposes that the support component includes a frame-shaped support frame fixed to the top of the inside of the spray booth for passing through the support spray pipe, the frame-shaped support frame having a through strip hole on its side, a pressure rod for pressing the spray pipe is provided in the strip hole, and a compression spring located inside the frame-shaped support frame is connected to the upper part of the pressure rod, the top of the compression spring being fixed to the inside of the frame-shaped support frame.

[0009] Furthermore, this application also proposes that the outlet of the pressure pump is connected to a spray pipe on one side via a high-pressure pipe and a connecting hose, and the two spray pipes are also connected via a connecting hose.

[0010] Furthermore, this application also proposes that the pressurizing pump be electrically connected to the control box, and that the control box be equipped with a wireless module for starting the pressurizing pump via remote control.

[0011] Furthermore, this application also proposes that the spray pipe is located at the upper front end of the spray booth, and as the transport vehicle moves forward, the spraying prevents the release agent from spreading to the outside of the spray booth.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: The asphalt mixture transport vehicle body release agent spraying system and its lifter, support components and pressurization control device provided by this utility model deliver the release agent to the adjustable angle spray pipe for automatic spraying through a pressurization pump, which solves the problems of low efficiency and poor safety of manual spraying, achieves uniform spraying effect, and prevents the release agent from spreading and polluting the environment. It has the advantages of improving spraying efficiency, ensuring operational safety, achieving uniform spraying, reducing material waste and environmental pollution. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 yes Figure 1 Enlarged view of a local structure in the diagram;

[0015] Figure 3 This is a practical schematic diagram of spraying large-size transport vehicles;

[0016] Figure 4 This is a practical schematic diagram of spraying small-sized transport vehicles;

[0017] In the diagram: 1. Spray booth; 2. Release agent tank; 3. Pressure pump; 4. High pressure pipe; 5. Connecting hose; 6. Spray pipe; 6. Nozzle; 7. Lifting block; 7. Guide rod; 8. Drive motor; 9. Threaded rod; 10. Frame support frame; 11. Strip hole; 12. Pressure rod; 13. Compression spring; 14. Transport vehicle. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0019] like Figure 1-2As shown, this application proposes a release agent spraying system for asphalt mixture transport vehicle bodies, including a release agent tank. The release agent in the release agent tank is pressurized by a pressure pump and transported along pipelines to multiple nozzles of two spray pipes installed on the upper part of the spraying shed. The spray pipes are supported by side supports. The spraying angle of the two spray pipes is adjusted by a centrally connected lifter to achieve spraying of transport vehicle bodies of different widths.

[0020] Specifically, the release agent tank, used to store the release agent, can be made of stainless steel to prevent corrosion, and its capacity can range from 500 liters to 2000 liters depending on actual needs. The pressure pump should be a diaphragm pump or gear pump, with a recommended operating pressure range of 0.3-0.8 MPa. The spray pipe should preferably be made of stainless steel with a diameter of 25-50 mm, with a nozzle installed every 200-300 mm along its length. The nozzles should be fan-shaped spray nozzles with a spray angle of 60-90 degrees. Rigid brackets can be used for support. The lifting device can be an electric push rod, hydraulic cylinder, or screw lifting mechanism, with an adjustable stroke of 200-500 mm to meet the needs of different truck bed widths, and an adjustment accuracy controlled within ±5 mm. The spray booth is designed as a semi-enclosed structure with a height of 2.5-3.5 meters.

[0021] This technical solution replaces manual operation with a mechanized spraying system. A pressure pump provides stable pressure to ensure uniform spraying, while an adjustable spray nozzle design adapts to different vehicle models. An enclosed spray booth effectively controls the spray range. Compared to manual spraying, this system allows for quantitative control, reducing material waste. Operators do not need to enter the vehicle compartment, ensuring operational safety, and spraying efficiency can be increased by 3-5 times.

[0022] Furthermore, this application also proposes that the lifting device includes a drive motor fixed to the top of the spray booth, the drive end of the drive motor being threadedly connected to the lifting block via a threaded rod, and the two ends of the lifting block being hinged and fixed to the spray pipe.

[0023] Specifically, a stepper motor can be used as the drive motor to achieve precise angle control. The connection between the threaded rod and the lifting block can be a trapezoidal thread or a ball screw structure, with the ball screw effectively reducing friction loss. The hinged fixation between the lifting block and the spray pipe can be achieved through a universal joint or a ball joint, allowing the spray pipe to freely adjust its angle in the vertical plane. The fit between the guide hole and the guide rod can be achieved using a linear bearing or a copper sleeve structure to ensure smooth vertical movement of the lifting block.

[0024] Therefore, this technical solution uses a motor-driven threaded rod to raise and lower the lifting block, thereby adjusting the angle of the spray pipe, solving the problems of low efficiency and difficulty in ensuring uniform spraying during manual adjustment. Compared with existing technologies, this structure can achieve automated angle adjustment, improving spraying efficiency, while maintaining motion stability through guide rods to prevent the spray pipe from shifting during adjustment.

[0025] Furthermore, this application also proposes that the lifting block has multiple guide holes, and a guide rod fixed to the spray booth is slidably connected in the guide holes.

[0026] Specifically, the number of guide holes can be set to 2-4 according to actual needs, evenly distributed on both sides of the lifting block. This technical solution, through the cooperation of the guide rod and guide holes, effectively limits the radial displacement of the lifting block during the lifting process, ensuring the motion accuracy of the threaded drive system. Specifically, when the drive motor rotates the threaded rod, the lifting block can only move linearly along the guide rod, avoiding deflection caused by uneven force. This structural design significantly improves the stability of the spray pipe angle adjustment, making the control of the release agent spray trajectory more precise and solving the problems of easy jamming and inaccurate positioning in existing technologies. At the same time, the introduction of the guide structure reduces the lateral load on the threaded pair, extending the service life of key components.

[0027] Furthermore, this application also proposes a specific structural scheme for the support component. The support component includes a frame-type support frame fixedly connected to the top of the interior of the spray booth, which is used to pass through and support the spray pipe. A through-hole is provided on the side of the frame-type support frame, and a pressure rod for pressing the spray pipe is provided in the through-hole. A compression spring located inside the frame-type support frame is connected to the upper part of the pressure rod, and the top of the compression spring is fixedly connected to the interior of the frame-type support frame.

[0028] Specifically, the frame support can be a rectangular steel structure with internal dimensions slightly larger than the outer diameter of the spray pipe for ease of installation. The slotted holes should be parallel to the axis of the spray pipe, and their length should ensure sufficient adjustment stroke for the pressure rod. The pressure rod can be a metal rod with rubber pads, using spring preload to flexibly fix the spray pipe.

[0029] This support structure achieves stable fixation of the spray pipe through a spring clamping mechanism, while allowing for slight displacement of the spray pipe when adjusting its angle. Compared to rigid fixing methods, this elastic support effectively absorbs vibrations during the spraying process, preventing pipe loosening. The frame-type support bracket ensures both support strength and provides ample space for pipe layout. The design of the pressure bar and slotted holes facilitates installation and maintenance, and the preload of the compression spring can be adjusted at any time to adapt to different working conditions.

[0030] Furthermore, this application also proposes that the outlet of the pressure pump is connected to a spray pipe on one side via a high-pressure pipe and a connecting hose, and the two spray pipes are also connected via a connecting hose.

[0031] Specifically, the high-pressure hose is made of pressure-resistant metal tubing, capable of withstanding the high-pressure liquid delivery pressure generated by the booster pump. The connecting hose is made of flexible rubber or polyurethane, with quick-connect fittings at both ends connecting to the high-pressure hose and the spraying hose, respectively. The connecting hose between the two spraying hoses is made of the same material, and its length is adjustable according to the spacing between the spraying hoses to ensure continuous liquid delivery. As a preferred embodiment, the connecting hose can be a pressure-resistant hose with a steel wire reinforcement layer, with a working pressure range between 0.8 and 1.2 MPa.

[0032] This technical solution achieves efficient delivery of the release agent from the pressurization pump to the spray nozzle through a combination of high-pressure pipe and connecting hose. The high-pressure pipe ensures the pressure stability of the main delivery pipeline, while the connecting hose solves the pipeline connection problem when adjusting the spray nozzle angle.

[0033] Furthermore, this application also proposes that the pressurizing pump be electrically connected to the control box, and that the control box be equipped with a wireless module for starting the pressurizing pump via a remote control.

[0034] Specifically, the control box and the booster pump are electrically connected via a cable. The control box integrates a wireless communication module, which can use Bluetooth wireless communication technology. The remote control establishes a connection with the control box via a wireless signal, allowing the operator to control the booster pump from a safe distance. The control box can also be equipped with status indicator lights to display the current operating status.

[0035] Therefore, this technical solution achieves remote control of the pressurizing pump via wireless remote control, eliminating the safety hazards of close contact with high-pressure equipment during manual operation. Compared with existing technologies, operators can control the release agent spraying operation without approaching the spraying area, ensuring operational safety and improving work efficiency. In practical implementation, the control box can be installed in an easily accessible location outside the spray booth, and the remote control distance can be achieved by selecting a wireless module with appropriate power according to actual needs.

[0036] Furthermore, this application also proposes that the spray pipe is located at the upper front end of the spray booth, and as the transport vehicle moves forward, the spraying prevents the release agent from spreading to the outside of the spray booth.

[0037] Specifically, the spray pipe is installed at the upper front of the spray booth, a position optimized to ensure that the spraying area covers the width of the transport vehicle's cargo compartment. As the transport vehicle moves forward, the spray pipe remains in a fixed position to perform the spraying operation, thus creating a dynamic spraying process.

[0038] The implementation principle of the asphalt mixture transport vehicle body release agent spraying system in this application embodiment is as follows:

[0039] When spraying release agent into the compartment of transport vehicle 14, the vehicle stops moving forward when the compartment is perpendicular to the spray pipe when the transport vehicle 14 enters the entrance of the spray booth 1. The personnel operate the remote control equipment to start the pressure pump 3 of the spray system. The pressure pump 3 pressurizes the release agent in the release agent tank 2 and delivers it along the high pressure pipe 4 to the spray pipe 6 and the nozzle 61 for spraying. At the same time, the transport vehicle 14 is directed to move forward slowly to complete the spraying in the tank. When it is about to reach the rear of the transport vehicle 14, the pressure pump 3 is turned off to stop the spraying.

[0040] When encountering vehicles with larger width dimensions (such as...) Figure 3 As shown), the two spray pipes 6 have a large included angle, and the release agent sprayed from multiple nozzles 61 has a wide radiation range, which can adapt to larger transport vehicles 14. When encountering vehicles with smaller widths (such as... Figure 4 As shown, the drive motor 8 is started to drive the rotating threaded rod 9 to raise the lifting block 7, which reduces the included angle of the spray pipes 6 on both sides. This makes the spray width of the nozzle 61 of the spray pipe 6 smaller, so that it can be adapted to smaller vehicles, thereby preventing the release agent from being sprayed outside the compartment of the transport vehicle 14 and achieving precise spraying.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An asphalt mixture hauler body release agent spraying system characterized by: The system includes a release agent tank (2), in which the release agent is pressurized by a pressurizing pump (3) and transported along the pipeline to multiple nozzles (61) of two spray pipes (6) installed on the upper part of the spray booth (1) for spraying. The spray pipes (6) are supported by side supports. The two spray pipes (6) are adjusted by a centrally connected lifter to achieve spraying of the carriages (14) of different widths.

2. The asphalt mixture transport vehicle body release agent spraying system according to claim 1, characterized in that: The lifting device includes a drive motor (8) fixed on the top of the spray booth (1). The drive end of the drive motor (8) is threadedly connected to the lifting block (7) through a threaded rod (9). The two ends of the lifting block (7) are hinged and fixed to the spray pipe (6).

3. An asphalt mixture hauler body release agent spray system as defined in claim 2, wherein: The lifting block (7) has multiple guide holes, and a guide rod (71) fixed to the spray booth (1) is slidably connected in the guide holes.

4. An asphalt mixture hauler body release agent spray system as defined in claim 1, wherein: The support includes a frame-shaped support frame (10) fixed to the top of the inside of the spray booth (1) for passing through the support spray pipe (6). The frame-shaped support frame (10) has a through strip hole (11) on its side. A pressure rod (12) for pressing the spray pipe (6) is provided in the strip hole (11). A compression spring (13) located inside the frame-shaped support frame (10) is connected to the upper part of the pressure rod (12). The top of the compression spring (13) is fixed to the inside of the frame-shaped support frame (10).

5. An asphalt mixture hauler body release agent spray system as defined in claim 1, wherein: The outlet of the pressurizing pump (3) is connected to the spraying pipe (6) on one side through a high-pressure pipe (4) and a connecting hose (5). The two spraying pipes (6) are also connected through the connecting hose (5).

6. The asphalt mixture transport vehicle body release agent spraying system according to claim 5, characterized in that: The pressurizing pump (3) is electrically connected to the control box, which is equipped with a wireless module for starting the pressurizing pump (3) via remote control.

7. The asphalt mixture transport vehicle body release agent spraying system according to claim 5, characterized in that: The spray pipe (6) is located at the upper front end of the spray booth (1). As the transport vehicle (14) moves forward, the spray prevents the release agent from spreading to the outside of the spray booth (1).

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