Spraying beam structure of foamed asphalt distribution truck

Abstract

The utility model discloses a distribution beam structure of a foamed asphalt distribution truck, which comprises a main beam, side beams are fixed on the front side and the rear side of the main beam, the two side beams are distributed in a left-right mirror image mode, telescopic beams are installed on the side beams in a guiding mode, and driving mechanisms used for driving the telescopic beams to move on the side beams are installed at the ends, close to each other, of the two telescopic beams respectively. Spraying nozzles used for spraying foamed asphalt are installed on the main beam and the telescopic beam at equal intervals. The movable telescopic beams which are distributed in a mirror image mode are arranged on the left side and the right side of the main beam, the width of asphalt spraying can be flexibly adjusted, when the outer ends of the telescopic beams are flush with the ends of the main beam, the width of asphalt spraying of the device is the smallest, at the moment, it is equivalent to that two rows of spraying nozzles are used for asphalt spraying, and the spraying efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spreading beams, in particular to a spreading beam structure of a foamed asphalt spreading vehicle. Background Art

[0002] Foamed asphalt spreaders are generally used in various road construction, maintenance, repair and reconstruction projects. Their main function is to evenly spread the foamed asphalt material on the road surface through the spray nozzles on the spray beam, which plays a role in bonding, densification and waterproofing.

[0003] As urban planning develops more and more advanced, the road surfaces are also being built wider and wider. However, the length of the spreading beam on a general foam asphalt spreader is fixed. When spreading on a wider road surface, it is necessary to move back and forth to spread, and the work efficiency is low. In addition, some roads need to be sprayed with asphalt twice or even more times to meet the standards (the existing spreading nozzles are all single-row). The foam asphalt spreader can only spread back and forth, and each spreading requires a period of time to wait for the asphalt to solidify (to prevent the asphalt from sticking to the wheels of the spreader), which is time-consuming. At present, there are also intelligent asphalt spreaders equipped with a spreading width adjustment system on the market. The spreading width adjustment system includes a nozzle, a hydraulic system, a controller, etc. Through the coordinated work of these components, the spreading width can be accurately adjusted. However, the spreading width is adjusted by adjusting the nozzle pressure through the hydraulic system, and the adjustment width is limited after all.

[0004] In view of the above problems, the inventor proposes a foamed asphalt spreading beam structure for a foamed asphalt spreading vehicle. Utility Model Content

[0005] The utility model aims to provide a foam asphalt spreading vehicle spreading beam structure, which can flexibly adjust the width of the asphalt spreading and can also spread in double rows, with high work efficiency, thus solving the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spreading beam structure of a foamed asphalt spreading vehicle, comprising a main beam, side beams are fixed on both the front and rear sides of the main beam, the two side beams are distributed in left and right mirror images, telescopic beams are guided and installed on the side beams, and driving mechanisms for driving the telescopic beams to move on the side beams are respectively installed at the ends of the two telescopic beams close to each other, and spreading nozzles for spreading foamed asphalt are installed at equal distances on the main beam and the telescopic beam.

[0007] Preferably, the ends of the two side beams that are away from each other are respectively provided with limiting grooves, and the telescopic beams are slidably installed in the limiting grooves.

[0008] Preferably, grooves are respectively provided on both sides of the telescopic beam in the length direction, and the side beams on both sides of the limiting groove are respectively embedded in the grooves.

[0009] Preferably, the driving mechanism includes rubber wheels installed on the front and rear sides of the telescopic beam, and a wheel axle is fixed at the axis of the rubber wheel. Both ends of the wheel axle are rotatably connected to the telescopic beam respectively, and the outer wheel surface of the rubber wheel extends into the inside of the groove and is in rolling contact with the inner wall of the limit groove.

[0010] Preferably, the middle part of the rubber wheel is fixedly sleeved with a driven gear which is retracted inwardly, and the inside of the telescopic beam between the two driven gears is provided with a driving gear which meshes with it, and a shaft is fixed at the center of the driving gear, and the shaft is rotatably connected to the telescopic beam.

[0011] Preferably, a motor for driving the shaft rod is installed at the bottom of the telescopic beam.

[0012] Preferably, a photoelectric control switch is also included, which includes a sensor plate. The sensor plates are fixed on both sides of the two telescopic beams close to each other, and the two side beams are each provided with a photoelectric limit switch used in conjunction with the sensor plate at the ends away from each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can flexibly adjust the width of asphalt spreading by arranging movable telescopic beams in mirror-image distribution twice on the left and right of the main beam. When the outer ends of the telescopic beams are respectively flush with the ends of the main beam, the width of asphalt spreading by this device is the narrowest. At this time, it is equivalent to having two rows of spreading nozzles spreading asphalt, which greatly improves the spreading efficiency. Since the relative position of the telescopic beam on the side beam can be flexibly adjusted, the asphalt spreading can be made more flexible and uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view of the structure state of the utility model;

[0017] Figure 3 This is a top view of the second structural state of the utility model;

[0018] Figure 4 This is the right side view of the structure of the utility model;

[0019] Figure 5 It is a cross-sectional view of the side beam, telescopic beam and driving mechanism of the utility model.

[0020] In the figure: 1. main beam; 2. side beam; 201, limit groove; 3. telescopic beam; 4. spray nozzle; 5. photoelectric limit switch; 6. driving gear; 7. motor; 8. axle; 9. rubber wheel; 10. driven gear; 11. shaft; 12. induction sheet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a spreading beam structure of a foamed asphalt spreading vehicle, comprising a main beam 1, side beams 2 are fixed on both the front and rear sides of the main beam 1, the two side beams 2 are distributed in left and right mirror images, telescopic beams 3 are guided and installed on the side beams 2, and the ends of the two telescopic beams 3 close to each other are respectively installed with driving mechanisms for driving them to move on the side beams 2, and spreading nozzles 4 for spreading foamed asphalt are evenly installed on the main beam 1 and the telescopic beams 3. The spreading nozzles 4 in the device are all controlled separately and can be arbitrarily combined (this is a prior art and will not be described in detail here).

[0023] A limiting groove 201 is respectively provided at one end of the two side beams 2 that are away from each other. A telescopic beam 3 is slidably installed in the limiting groove 201. One end of the telescopic beam 3 can extend to the outside of the side beam 2, thereby increasing the width of asphalt spread by the device, making it suitable for wider roads and improving the spreading efficiency.

[0024] Grooves are provided on both sides of the telescopic beam 3 in the length direction, so that the cross-section of the telescopic beam 3 is in the shape of an "I". The side beams 2 on both sides of the limit groove 201 are respectively embedded in the grooves. The above structure is designed so that the telescopic beam 3 can be stably installed inside the side beam 2 and will not fall out upward or downward.

[0025] like Figure 4 and Figure 5As shown, the driving mechanism includes a rubber wheel 9 installed on the front and rear sides of the telescopic beam 3, and a wheel axle 8 is fixed at the axis of the rubber wheel 9. The two ends of the wheel axle 8 extend to the outside of the rubber wheel 9 respectively, and the two ends of the wheel axle 8 are respectively rotatably connected to the telescopic beam 3. The outer wheel surface of the rubber wheel 9 extends to the inside of the groove and is in rolling contact with the inner wall of the limiting groove 201. The middle part of the rubber wheel 9 is contracted inward and fixed with a driven gear 10. Through the above design, the driven gear 10 will not contact the inner wall of the limiting groove 201, and the two driven gears 10 are not in contact with each other. A driving gear 6 meshing with the telescopic beam 3 is arranged inside the telescopic beam 3, and a shaft 11 is fixed at the center of the driving gear 6. The shaft 11 and the telescopic beam 3 are rotatably connected. A motor 7 for driving the shaft 11 is installed at the bottom of the telescopic beam 3. When working, the motor 7 is turned on to drive the shaft 11 to rotate, so that the driving gear 6 rotates and drives the driven gear 10 meshing with it to rotate, so that the rubber wheel 9 rotates continuously, and the rubber wheel 9 rolls on the side wall of the limiting groove 201, thereby driving the telescopic beam 3 to move on the side beam 2 to adjust the width of asphalt sprayed by the device.

[0026] A spreading beam structure of a foamed asphalt spreading vehicle also includes a photoelectric control switch, which is used to control an axle rod 11. The photoelectric control switch includes a sensor sheet 12. The two telescopic beams 3 are respectively fixed with the sensor sheets 12 on both sides of one end close to each other, and the two side beams 2 are each provided with a photoelectric limit switch 5 used in conjunction with the sensor sheet 12 at the ends away from each other. The photoelectric control switch is a prior art, and the photoelectric limit switch 5 is generally a U-shaped photoelectric limit switch. When working, the telescopic beam 3 moves on the side beam 2, driving the sensor sheet 12 to move. When the sensor sheet 12 moves to the position of the photoelectric limit switch 5, the electrical signal changes, thereby stopping the axle rod 11, fixing the telescopic beam 3 at the current position and not moving further. At this time, the spreading width of the device is the widest. Figure 3 As shown, when one end of the telescopic beam 3 contacts the side wall of the closed end of the limiting groove 201, the end of the telescopic beam 3 is flush with the end of the main beam 1, and the width of asphalt spread by the device is the narrowest. At this time, there are equivalent to two rows of spreading nozzles 4 spreading asphalt, which greatly improves the spreading efficiency.

[0027] The telescopic beam 3 moves on the side beam 2, which can make the spreading nozzles 4 on the main beam 1 and the telescopic beam 3 staggered, so that the asphalt spreading is more uniform and comprehensive, and the lateral stripes caused by uneven lateral spreading are reduced.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foamed asphalt spreading beam structure of a spreading vehicle, comprising a main beam (1), characterized in that: Side beams (2) are fixed on both the front and rear sides of the main beam (1), and the two side beams (2) are distributed in a left and right mirror image. Telescopic beams (3) are installed on the side beams (2) for guidance. The ends of the two telescopic beams (3) close to each other are respectively installed with driving mechanisms for driving them to move on the side beams (2). Sprinkling nozzles (4) for spreading foamed asphalt are evenly installed on the main beam (1) and the telescopic beams (3).

2. The foamed asphalt distributor beam structure according to claim 1, characterized in that: A limiting groove (201) is respectively provided at one end of the two side beams (2) that is away from each other, and the telescopic beam (3) is slidably mounted in the limiting groove (201).

3. The foamed asphalt distributor beam structure according to claim 2, characterized in that: Grooves are respectively provided on both sides of the telescopic beam (3) in the length direction, and the side beams (2) on both sides of the limiting groove (201) are respectively embedded in the grooves.

4. The foamed asphalt distributing vehicle distributing beam structure according to claim 3 is characterized in that: The driving mechanism comprises rubber wheels (9) installed on the front and rear sides of the telescopic beam (3), a wheel axle (8) is fixed at the axis of the rubber wheel (9), both ends of the wheel axle (8) are rotatably connected to the telescopic beam (3), and the outer wheel surface of the rubber wheel (9) extends into the interior of the groove and is in rolling contact with the inner wall of the limit groove (201).

5. The foamed asphalt distributing vehicle distributing beam structure according to claim 4, characterized in that: The middle part of the rubber wheel (9) is retracted inwardly and fixedly sleeved with a driven gear (10); a driving gear (6) meshing with the driven gear (10) is arranged inside the telescopic beam (3) between the two driven gears (10); a shaft (11) is fixed at the center of the driving gear (6); and the shaft (11) and the telescopic beam (3) are rotatably connected.

6. The foamed asphalt distributing vehicle distributing beam structure according to claim 5, characterized in that: A motor (7) for driving the shaft (11) is installed at the bottom of the telescopic beam (3).

7. The foamed asphalt distributor beam structure according to any one of claims 1 to 6, characterized in that: It also includes a photoelectric control switch, which includes a sensing sheet (12). The sensing sheets (12) are fixed on both sides of the two telescopic beams (3) close to each other, and the two side beams (2) are each provided with a photoelectric limit switch (5) used in conjunction with the sensing sheet (12) at the ends away from each other.

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