Spreading system of synchronous chip sealer

Abstract

The utility model discloses a synchronous spreading system of a chip sealer, which comprises an asphalt spraying device and a chip spreading device, the asphalt spraying device comprises a spray head fixing frame, and a bottom layer asphalt spray head, a middle layer asphalt spray head and a surface layer asphalt spray head which are fixedly arranged on the spray head fixing frame; the bottom-layer asphalt spray head and the surface-layer asphalt spray head are arranged downwards, are the same in height and are respectively positioned in front of and behind the spreading hopper, and the middle-layer asphalt spray head is arranged downwards and obliquely opposite to the open material channel of the fan-shaped dispersing groove. Asphalt is sprayed to the surface of gravel flowing downwards through the fan-shaped dispersing groove through the middle-layer asphalt spray head, the direction of the gravel is changed randomly during rolling, wrapping of the sprayed asphalt is facilitated, the asphalt is sprayed to the road surface through the bottom-layer asphalt spray head, and the gravel falls onto the asphalt sprayed on the ground and immerses downwards. Then surface asphalt is sprayed to the gravels on the ground through a surface asphalt spray head, and on the basis that the cohesiveness of the gravels and the ground is ensured, the cohesiveness between the gravels and the cohesiveness of the surface layer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous chip seal vehicles, in particular to a synchronous chip seal vehicle spreading system. Background Art

[0002] Synchronous chip seal refers to the use of a synchronous chip seal vehicle to simultaneously spray asphalt binder and spread aggregate, so that the asphalt binder and aggregate are bonded together. Compared with ordinary chip seal, synchronous chip seal shortens the time interval between spraying binder and spreading aggregate, improves operation productivity, reduces machinery configuration, and reduces construction costs.

[0003] The spreading system of the synchronous chip sealer in the prior art consists of an asphalt spraying device and a chip spreader, with the asphalt spraying device in front and the chip spreader in the back. As the synchronous chip sealer moves forward, the asphalt is first sprayed on the ground, and the chip falls and adheres to the asphalt, and is compacted by a roller to complete the sealing. However, in actual operation, only the lower quarter of the chip is immersed in the asphalt, and after compaction, less than half of the chip is immersed in the asphalt, resulting in low wrapping and adhesion. In addition, as the road surface is used, large vehicles and vehicles with narrow tires repeatedly roll over it for a long time, which can easily cause local chip falling off. Once it falls off, the damaged area will gradually increase, causing large-scale damage to the road surface.

[0004] Therefore, some designs can improve on the above by adding another set of asphalt spraying devices behind the gravel spreading device, but they can only increase the adhesion of the gravel surface, and the adhesion between the gravels is still insufficient. Once they are loose, the same problem mentioned above will still occur. Therefore, in order to improve the adhesion of gravel, the adhesion between gravel and asphalt, and improve the quality of the road surface, a new type of synchronous gravel sealing vehicle spreading system is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a synchronous chip seal vehicle spreading system for solving the problem that the synchronous chip seal vehicle sealing layer has low adhesion between the chip and asphalt, which affects the road surface quality.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A synchronous chip seal vehicle spreading system comprises an asphalt spraying device and a chip spreading device, wherein the asphalt spraying device comprises a nozzle fixing frame and a bottom layer asphalt nozzle, a middle layer asphalt nozzle and a surface layer asphalt nozzle fixedly mounted on the nozzle fixing frame;

[0008] The crushed stone spreading device comprises a lower hopper, a fan-shaped dispersion trough fixedly connected below the lower hopper, and a spreading hopper fixedly installed at the bottom of the fan-shaped dispersion trough;

[0009] The open channel of the fan-shaped dispersion trough faces the front of the synchronous chip seal vehicle and the bottom is inclined forward, and the opening of the spreading bucket faces the rear of the synchronous chip seal vehicle and the bottom is inclined backward;

[0010] The bottom layer asphalt nozzles, middle layer asphalt nozzles and surface layer asphalt nozzles are arranged in multiples at equal intervals along the nozzle fixing frame. The bottom layer asphalt nozzles and surface layer asphalt nozzles are arranged downward, have the same height and are respectively located in front of and behind the spreading bucket. The middle layer asphalt nozzles are arranged to be inclined downward facing the open material channel of the fan-shaped dispersion trough.

[0011] Preferably, the bottom layer asphalt spray head and the middle layer asphalt spray head are both mounted on the beam of the synchronous gravel sealing vehicle through a spray head fixing frame, and the spray head fixing frame corresponding to the surface layer asphalt spray head is movably mounted on the fan-shaped dispersion tank through an articulated frame and a push rod.

[0012] Preferably, a nozzle baffle is fixedly connected to the nozzle fixing frame corresponding to the surface asphalt nozzle on the side close to the spreading bucket.

[0013] Preferably, the lengths of the nozzle fixing frames corresponding to the bottom layer asphalt nozzles and the surface layer asphalt nozzles are adapted to the widths of the synchronous gravel sealing vehicle and the spreading bucket.

[0014] Preferably, the middle layer asphalt nozzle corresponds to the middle part of the fan-shaped dispersion groove, and the length of the nozzle fixing frame corresponding to the middle layer asphalt nozzle is adapted to the width dimension of the middle part of the fan-shaped dispersion groove.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model sprays asphalt onto the surface of crushed stones flowing downward in the fan-shaped dispersion groove through a middle layer asphalt nozzle. In the process of the crushed stones flowing downward along the fan-shaped dispersion groove, the crushed stones roll and randomly change directions, which helps the sprayed asphalt to complete the wrapping. The asphalt is sprayed onto the road surface through a bottom layer asphalt nozzle, and the crushed stones fall onto the asphalt sprayed on the ground and immerse downward. Then, the surface asphalt is sprayed onto the crushed stones on the ground through a surface layer asphalt nozzle. On the basis of ensuring the adhesion between the crushed stones and the ground, the adhesion between the crushed stones and the surface layer is increased, thereby improving the compacting effect of the road surface, improving the strength, making the road surface less prone to damage, and solving the problem in the prior art that the crushed stones and asphalt in the sealing layer of the synchronous crushed stone sealing vehicle are not highly adherent to each other, which affects the road surface quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the asphalt spraying device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the gravel spreading device of the utility model;

[0020] Figure 4 It is a right view of the local structure at the corresponding position of the fan-shaped dispersion groove of the utility model;

[0021] Figure 5 It is a left view of the local structure at the corresponding position of the fan-shaped dispersion tank of the utility model.

[0022] In the figure: 10, asphalt spraying device; 11, nozzle fixing frame; 12, bottom layer asphalt nozzle; 13, middle layer asphalt nozzle; 14, surface layer asphalt nozzle; 20, gravel spreading device; 21, lower hopper; 22, fan-shaped dispersion trough; 23, spreading bucket; 30, vehicle beam; 40, articulated frame; 50, push rod; 60, nozzle baffle. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1-5 As shown, the utility model provides a technical solution: a synchronous chip seal vehicle spreading system, comprising an asphalt spraying device 10 and a chip spreading device 20, the asphalt spraying device 10 comprising a nozzle fixing frame 11 and a bottom layer asphalt spraying head 12, a middle layer asphalt spraying head 13 and a surface layer asphalt spraying head 14 fixedly mounted on the nozzle fixing frame 11;

[0025] The gravel spreading device 20 includes a lower hopper 21, a fan-shaped dispersion trough 22 fixedly connected to the lower part of the lower hopper 21, and a spreading bucket 23 fixedly installed at the bottom of the fan-shaped dispersion trough 22. The open material channel of the fan-shaped dispersion trough 22 faces the front of the synchronous gravel sealing vehicle and the bottom is inclined forward. The opening of the spreading bucket 23 faces the rear of the synchronous gravel sealing vehicle and the bottom is inclined backward.

[0026] A plurality of bottom layer asphalt spray heads 12, middle layer asphalt spray heads 13 and surface layer asphalt spray heads 14 are arranged equidistantly along the spray head fixing frame 11. The bottom layer asphalt spray heads 12 and surface layer asphalt spray heads 14 are arranged downward, at the same height and respectively located in front of and behind the spreading bucket 23. A spray head baffle 60 is fixedly connected to the side of the spray head fixing frame 11 corresponding to the surface layer asphalt spray heads 14 close to the spreading bucket 23. The middle layer asphalt spray heads 13 are arranged to tilt downward facing the open material channel of the fan-shaped dispersion tank 22.

[0027] The bottom layer asphalt spray head 12 and the middle layer asphalt spray head 13 are both mounted on the beam 30 of the synchronous gravel sealing vehicle through the spray head fixing frame 11, and the spray head fixing frame 11 corresponding to the surface layer asphalt spray head 14 is movably mounted on the fan-shaped dispersion tank 22 through the hinge frame 40 and the push rod 50;

[0028] The length of the nozzle fixing frame 11 corresponding to the bottom layer asphalt nozzle 12 and the surface layer asphalt nozzle 14 is adapted to the width dimension of the synchronous gravel sealing vehicle and the spreading bucket 23, the middle layer asphalt nozzle 13 corresponds to the middle part of the fan-shaped dispersion groove 22, and the length of the nozzle fixing frame 11 corresponding to the middle layer asphalt nozzle 13 is adapted to the width dimension of the middle part of the fan-shaped dispersion groove 22.

[0029] Working principle: asphalt is sprayed on the surface of the gravel flowing downward from the fan-shaped dispersion groove 22 through the middle layer asphalt nozzle 13. When the gravel flows downward along the fan-shaped dispersion groove 22, the gravel rolls and randomly changes direction to help the sprayed asphalt to complete the wrapping. Asphalt is sprayed on the road surface through the bottom layer asphalt nozzle 12. The gravel falls on the asphalt sprayed on the ground and soaks downward. Then, the surface asphalt is sprayed on the gravel on the ground through the surface layer asphalt nozzle 14. On the basis of ensuring the adhesion between the gravel and the ground, the adhesion between the gravel and the surface layer is increased, thereby improving the compacting effect of the road surface, increasing the strength, and making the road surface less prone to damage.

[0030] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] 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 synchronous chip seal vehicle spreading system, comprising an asphalt spraying device (10) and a chip spreading device (20), characterized in that: The asphalt spraying device (10) comprises a nozzle fixing frame (11) and a bottom layer asphalt spraying head (12), a middle layer asphalt spraying head (13) and a surface layer asphalt spraying head (14) fixedly mounted on the nozzle fixing frame (11); The gravel spreading device (20) comprises a lower hopper (21), a fan-shaped dispersion trough (22) fixedly connected below the lower hopper (21), and a spreading hopper (23) fixedly installed at the bottom of the fan-shaped dispersion trough (22); The open material channel of the fan-shaped dispersion trough (22) faces the front of the synchronous chip seal vehicle and the bottom is inclined forward, and the opening of the spreading bucket (23) faces the rear of the synchronous chip seal vehicle and the bottom is inclined backward; The bottom layer asphalt spray heads (12), the middle layer asphalt spray heads (13) and the surface layer asphalt spray heads (14) are arranged in a plurality of equal distances along the spray head fixing frame (11); the bottom layer asphalt spray heads (12) and the surface layer asphalt spray heads (14) are arranged downward, at the same height and respectively located in front of and behind the spreading bucket (23); the middle layer asphalt spray heads (13) are arranged to be inclined downward facing the open material channel of the fan-shaped dispersion trough (22).

2. A synchronous chip seal vehicle spreading system according to claim 1, characterized in that: The bottom layer asphalt spray head (12) and the middle layer asphalt spray head (13) are both mounted on the vehicle beam (30) of the synchronous chip seal vehicle via a spray head fixing frame (11), and the spray head fixing frame (11) corresponding to the surface layer asphalt spray head (14) is movably mounted on the fan-shaped dispersion trough (22) via an articulated frame (40) and a push rod (50).

3. The synchronous chip seal vehicle spreading system according to claim 1, characterized in that: A nozzle baffle (60) is fixedly connected to a nozzle fixing frame (11) corresponding to the surface asphalt nozzle (14) on one side close to the spreading bucket (23).

4. A synchronous chip seal vehicle spreading system according to claim 1, characterized in that: The lengths of the nozzle fixing frames (11) corresponding to the bottom layer asphalt nozzles (12) and the surface layer asphalt nozzles (14) are adapted to the widths of the synchronous chip seal vehicle and the spreading bucket (23).

5. The synchronous chip seal vehicle spreading system according to claim 1, characterized in that: The middle layer asphalt spray head (13) corresponds to the middle part of the fan-shaped dispersion groove (22), and the length of the spray head fixing frame (11) corresponding to the middle layer asphalt spray head (13) is adapted to the width dimension of the middle part of the fan-shaped dispersion groove (22).

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