Asphalt paver for large-area asphalt plaza

Abstract

The utility model discloses an asphalt paver for a large-area asphalt square, and relates to the technical field of engineering machinery. Comprising an asphalt paver, a front pushing roller is arranged at the front end of a hopper of the asphalt paver, the independent storage hopper comprises a walking chassis, walking wheels are arranged at the bottom of the walking chassis, a material box with an opening in the upper end is arranged above the walking chassis, and the upper end of the material box is provided with a hopper. The walking chassis is provided with an air cylinder used for supporting the walking chassis to be in an inclined state. A material receiving buffering mechanism and an auxiliary discharging mechanism are arranged at the two ends of the bottom in the material box respectively, the material receiving buffering mechanism is used for conducting falling buffering on poured asphalt when the dump truck unloads the asphalt at a time, and the auxiliary discharging mechanism is used for assisting in pushing the asphalt in the material box into a hopper of the asphalt paver.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an asphalt paver used for large-area asphalt squares. Background Art

[0002] An asphalt paver is a machine that evenly spreads asphalt mixture onto the road base, performing preliminary compaction and leveling. It typically consists of a frame, power unit, travel mechanism, hopper, gate, scraper conveyor, auger, and cab. The hopper is the feeding device, located at the front of the paver, and receives asphalt concrete from a dump truck. During operation, the paver's front push rollers push the rear wheels of the loaded dump truck forward, receiving the asphalt mixture. The asphalt mixture discharged into the hopper is delivered to the auger paving chamber by two independently driven scraper conveyors at the bottom of the hopper. The feed rate is controlled by two gates on the rear wall. The auger paver has two spirals, both left and right, that simultaneously spread the material evenly to the left and right sides, but each can also be driven independently.

[0003] In the prior art, the asphalt paver pushes the loaded dump truck to move until the asphalt paving is completed or the asphalt in the dump truck is unloaded. However, for a large area of ​​asphalt-paved square, the asphalt material consumption is large, and more dump trucks are required to transport the asphalt. At least one dump truck is required to move with the asphalt paver for paving. Moreover, each time a dump truck is unloaded and replaced by another one, it must be re-docking so that the front push roller of the paver pushes the loaded dump truck. This process will affect the overall construction efficiency, increase the construction period, and occupy a large number of engineering vehicles.

[0004] Therefore, based on the above technical problems, technicians in this field urgently need to develop an asphalt paver for large-area asphalt plazas. Utility Model Content

[0005] The purpose of the utility model is to provide an asphalt paver for large-area asphalt plazas that can directly load a large amount of asphalt material at the front end of the asphalt paver for the asphalt paver to pave asphalt, improve the operating efficiency of the dump truck carrying asphalt, avoid occupying a large number of dump trucks, and reduce the time taken for the asphalt paver to dock with the dump truck to improve the construction efficiency of the overall project.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The utility model discloses an asphalt paver for large-area asphalt plazas, comprising an asphalt paver, a front end of a hopper of the asphalt paver having a front push roller, and further comprising:

[0008] An independent storage hopper, comprising a traveling chassis with traveling wheels at the bottom, a material box with an open top disposed above the traveling chassis, and a cylinder disposed on the traveling chassis for supporting the material box to an inclined state;

[0009] A material receiving buffer mechanism and an auxiliary material unloading mechanism are respectively provided at both ends of the bottom of the material box. The material receiving buffer mechanism is used to cushion the falling of the pouring asphalt when the dump truck unloads the asphalt at one time, and the auxiliary material unloading mechanism is used to assist in pushing the asphalt in the material box into the hopper of the asphalt paver.

[0010] Furthermore, docking rods are provided on both sides of the tail end of the walking chassis in the forward direction, and arc-shaped docking joints for docking with the front pushing rollers are provided on the docking rods.

[0011] Furthermore, the material receiving buffer mechanism includes a support platform, which is arranged at the bottom of the material box, a buffer bottom plate is arranged above the support platform, and a plurality of elastic buffers are arranged between the buffer bottom plate and the support platform.

[0012] Furthermore, vertical baffles are provided at both the front and rear ends of the buffer bottom plate, and two groups of the vertical baffles are respectively located at the two ends of the support platform and slide relative to the support platform.

[0013] Furthermore, the auxiliary unloading mechanism includes a mounting platform, which is located in the material box at one end close to the hopper of the asphalt paver. A plurality of mutually parallel conveying dragons are arranged on the upper surface of the mounting platform. The conveying dragons are driven to rotate by a motor, and the conveying direction of the conveying dragons is toward the direction of the hopper of the asphalt paver.

[0014] Furthermore, the material box has a material discharge notch and a blocking door for blocking the material discharge notch at one end close to the hopper of the asphalt paver. The lower end of the blocking door is hingedly connected to the lower end of the material discharge notch, and the upper end of the blocking door is fixed by a door lock when closed.

[0015] A limiting plate is provided at the lower end of the baffle door and located on the outer side of the material box, and the limiting plate and the baffle door are perpendicularly arranged to each other.

[0016] In the above technical solution, the utility model provides an asphalt paver for large-area asphalt plazas, which has the following beneficial effects:

[0017] The material box of the utility model can directly load a large amount of asphalt material at the front end of the asphalt paver for the asphalt paver to pave asphalt. After the dump truck carries the asphalt, it only needs to unload the asphalt directly into the material box without having to follow the asphalt paver. This improves the operating efficiency of the dump truck carrying asphalt, avoids occupying a large number of dump trucks, and reduces the time taken for the asphalt paver to connect with the dump truck, thereby improving the construction efficiency of the entire project. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic structural diagram of an asphalt paver for large-area asphalt plazas provided by an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of loading material into a material box of an asphalt paver for large-area asphalt plazas provided in an embodiment of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Asphalt paver; 2. Push roller; 3. Travel chassis; 4. Travel wheels; 5. Material box; 6. Cylinder; 7. Docking rod; 8. Arc-shaped docking joint; 9. Support platform; 10. Buffer bottom plate; 11. Elastic buffer; 12. Vertical baffle; 13. Mounting platform; 14. Conveying dragon; 15. Material discharge notch; 16. Baffle door; 17. Limit plate. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0024] See also Figures 1 to 2 As shown;

[0025] This embodiment discloses an asphalt paver for large-area asphalt plazas, including an asphalt paver 1. The asphalt paver 1 is a conventional asphalt paver currently used in the prior art. The front end of the hopper of the asphalt paver 1 is provided with a front push roller 2, which is used to push a dump truck carrying asphalt material forward synchronously with the asphalt paver 1, so that the dump truck can continuously unload asphalt into the hopper of the asphalt paver 1, and then the asphalt is spread on the ground by the asphalt paver 1. The embodiment also includes:

[0026] An independent storage hopper is a hopper that replaces the storage hopper of the dump truck in front of the asphalt paver 1. It is mainly used to load asphalt materials directly unloaded from the dump truck. The independent storage hopper includes a traveling chassis 3. The bottom of the traveling chassis 3 has traveling wheels 4 so that the traveling chassis 3 can move forward through the traveling wheels 4. A material box 5 with an open upper end is provided above the traveling chassis 3. The material box 5 is used to load asphalt materials directly unloaded from the dump truck. A cylinder 6 is provided on the traveling chassis 3 for supporting the material box 5 to an inclined state. The cylinder 6 is used to lift one end of the material box 5 to an inclined state, and the inclined direction is toward the hopper of the asphalt paver 1, so that the asphalt material can be poured into the hopper of the asphalt paver 1 for use;

[0027] A material receiving buffer mechanism and an auxiliary material discharge mechanism are respectively provided at both ends of the bottom of the material box 5. The material receiving buffer mechanism is used to buffer the falling of the pouring asphalt when the dump truck unloads the asphalt at one time, so as to avoid damage to the independent storage hopper caused by the short-term increase in pressure on the independent storage hopper when a large amount of material is unloaded. The auxiliary material discharge mechanism is used to assist in pushing the asphalt in the material box 5 into the hopper of the asphalt paver 1 to ensure the continuity of material supply.

[0028] Specifically, the material box 5 of the present invention can directly load a large amount of asphalt material at the front end of the asphalt paver 1 for the asphalt paver 1 to pave asphalt. After the dump truck carries the asphalt, it only needs to directly unload the asphalt into the material box 5. According to specific needs, the material box 5 can be set to be able to carry asphalt materials with the carrying capacity of two or even three dump trucks, so as to reduce the number of loading times and shutdown times, so that the dump truck does not need to follow the asphalt paver 1, so as to improve the operating efficiency of the dump truck carrying asphalt, avoid occupying a large number of dump trucks, and reduce the time used for the asphalt paver 1 to dock with the dump truck to improve the construction efficiency of the overall project.

[0029] Furthermore, docking rods 7 are provided on both sides of the tail end of the walking chassis 3 in its forward direction, and an arc-shaped docking joint 8 is provided on the docking rod 7 for docking with the front push roller 2. The arc-shaped docking joint 8 is supported by the docking rod 7 to semi-wrap the front push roller 2 to improve the docking stability.

[0030] Furthermore, the material receiving buffer mechanism includes a support platform 9, which is arranged at the bottom of the material box 5. A buffer bottom plate 10 is arranged above the support platform 9, and multiple elastic buffers 11 are arranged between the buffer bottom plate 10 and the support platform 9. When the dump truck unloads asphalt, the asphalt is supported by the buffer bottom plate 10, and the elastic buffer 11 reduces the impact through elastic buffering, thereby avoiding impact on the bottom of the material box 5.

[0031] Furthermore, vertical baffles 12 are provided at both ends of the buffer base plate 10. The two groups of vertical baffles 12 are respectively located at both ends of the support platform 9 and slide relative to the support platform 9. Through the restriction of the vertical baffles 12 at both ends, the buffer base plate 10 and the support platform 9 can maintain stable relative vertical movement, so as to better play the elastic buffering effect of the elastic buffer 11.

[0032] Furthermore, the auxiliary unloading mechanism includes a mounting platform 13, which is located in the material box 5 at one end of the hopper of the asphalt paver 1. The mounting platform 13 needs to be set close to the material receiving buffer mechanism to prevent asphalt material from entering. A plurality of mutually parallel conveying dragons 14 are set on the upper surface of the mounting platform 13. The conveying dragons 14 are driven to rotate by a motor. The conveying direction of the conveying dragons 14 is toward the direction of the hopper of the asphalt paver 1, so as to ensure that the asphalt sliding down from the material box 5 can be continuously fed by the conveying dragons 14 at the bottom position.

[0033] Furthermore, the material box 5 has a discharge opening 15 and a blocking door 16 at one end thereof, which is close to the hopper of the asphalt paver 1. The lower end of the blocking door 16 is hingedly connected to the lower end of the discharge opening 15, and the upper end of the blocking door 16 is fixed by a door lock when closed.

[0034] A limiting plate 17 is provided at the lower end of the blocking door 16 and on the outer side of the material box 5 , and the limiting plate 17 and the blocking door 16 are perpendicularly arranged to each other.

[0035] Specifically, the discharge opening 15 is the outlet for unloading after the material bin 5 is tilted. It is normally blocked by a gate 16 to load asphalt. When asphalt material needs to be transported, the gate 16 is opened outward and rotated 90 degrees. At this time, the limit plate 17 rotates and stops on the outer wall of the material bin 5 to limit the further rotation of the gate 16. At this time, the gate 16 tilts with the tilt of the material bin 5, forming a hopper for transporting asphalt to the hopper of the asphalt paver 1. This structure also avoids the problem of asphalt material being unable to be directly dumped due to the large distance between the rear end of the asphalt paver 1 and the hopper of the asphalt paver 1. To prevent asphalt from spilling from the sides of the gate 16, additional shields can be installed on both sides of the gate 16 as needed.

[0036] In the above technical solution, the utility model provides an asphalt paver for large-area asphalt plazas, which has the following beneficial effects:

[0037] The material box of the utility model can directly load a large amount of asphalt material at the front end of the asphalt paver for the asphalt paver to pave asphalt. After the dump truck carries the asphalt, it only needs to unload the asphalt directly into the material box without having to follow the asphalt paver. This improves the operating efficiency of the dump truck carrying asphalt, avoids occupying a large number of dump trucks, and reduces the time taken for the asphalt paver to connect with the dump truck, thereby improving the construction efficiency of the entire project.

[0038] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An asphalt paver for large-area asphalt plazas, comprising an asphalt paver (1), wherein the front end of the hopper of the asphalt paver (1) is provided with a front push roller (2), characterized in that: Also includes: An independent material storage hopper, comprising a walking chassis (3), the bottom of the walking chassis (3) having walking wheels (4), a material box (5) with an open upper end arranged above the walking chassis (3), and a cylinder (6) arranged on the walking chassis (3) for supporting the material box (5) to an inclined state; A material receiving and buffering mechanism and an auxiliary material discharge mechanism are respectively provided at both ends of the bottom of the material box (5). The material receiving and buffering mechanism is used to provide a buffer for the falling of the pouring asphalt when the dump truck unloads the asphalt at one time, and the auxiliary material discharge mechanism is used to assist in pushing the asphalt in the material box (5) into the hopper of the asphalt paver (1).

2. The asphalt paver for large-area asphalt plazas according to claim 1, characterized in that: The walking chassis (3) is provided with docking rods (7) on both sides of the tail end thereof in the forward direction, and the docking rods (7) are provided with arc-shaped docking joints (8) for docking with the front pushing roller (2).

3. The asphalt paver for large-area asphalt plazas according to claim 1, characterized in that: The material receiving buffer mechanism comprises a support platform (9) which is arranged at the bottom of the material box (5); a buffer bottom plate (10) is arranged above the support platform (9); and a plurality of elastic buffers (11) are arranged between the buffer bottom plate (10) and the support platform (9).

4. The asphalt paver for large-area asphalt plazas according to claim 3, characterized in that: Vertical baffles (12) are provided at both the front and rear ends of the buffer bottom plate (10), and two groups of the vertical baffles (12) are respectively located at the two ends of the support platform (9) and slide relative to the support platform (9).

5. The asphalt paver for large-area asphalt plazas according to claim 1, characterized in that: The auxiliary unloading mechanism comprises a mounting platform (13), the mounting platform (13) being located in the material box (5) at one end close to the hopper of the asphalt paver (1), and a plurality of mutually parallel conveying dragons (14) being provided on the upper surface of the mounting platform (13), the conveying dragons (14) being driven to rotate by a motor, and the conveying direction of the conveying dragons (14) is towards the direction where the hopper of the asphalt paver (1) is located.

6. The asphalt paver for large-area asphalt plazas according to claim 5, characterized in that: The material box (5) has a material discharge notch (15) and a blocking door (16) for blocking the material discharge notch (15) at one end thereof close to the material hopper of the asphalt paver (1). The lower end of the blocking door (16) is hingedly connected to the lower end of the material discharge notch (15). The upper end of the blocking door (16) is fixed by a door lock when closed. A limiting plate (17) is provided at the lower end of the blocking door (16) and located on the outer side of the material box (5), and the limiting plate (17) and the blocking door (16) are arranged perpendicular to each other.

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