Spiral paver for asphalt concrete

Abstract

The utility model relates to the technical field of road construction equipment, in particular to a spiral paver for asphalt concrete, which comprises a rack, a spiral paving component, a paving controller and an ironing plate, and the paving controller and the ironing plate are arranged on the rack; the spiral spreading assembly comprises at least two spiral spreading devices which are connected in sequence, each spiral spreading device is connected with the rack through a lifting suspension support, and the spiral spreading devices and the lifting suspension supports are connected with the spreading controller. According to the utility model, the spiral pavers are arranged in sections, and the height of each section of spiral paver is adjusted, so that the uniform paving of the asphalt mixture is controlled, and the problem of segregation of asphalt concrete is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to road construction equipment technical field, concretely relates to a spiral paving machine for asphalt concrete. BACKGROUND

[0002] At present, the paving material of road surface is mostly asphalt concrete, and the asphalt pavement refers to various types of pavements constructed by mixing road asphalt material into mineral material, and the asphalt binder improves the ability of the paving granule to resist the damage of driving and natural factors to the pavement, so that the pavement is flat, less dusty, impermeable to water and durable.

[0003] In order to improve the construction efficiency, the asphalt paving machine is usually used to lay asphalt. The asphalt paving machine is a machine for uniformly paving the asphalt mixture on the road base and performing preliminary vibration and leveling. It is composed of traction, paving, vibration, and ironing. For the crawler-type paving machine, it includes a frame, a power device, a walking device, a hopper, a material door, a scraper conveyor, a spiral paving device, and a cab.

[0004] Since the asphalt aggregate particles are coarse and fine, the centrifugal force and inertia generated by the aggregate particles are different under the driving of the rotating spiral paving device, which causes the large particles of aggregate to be concentrated and conveyed to the both ends of the distribution chute, often resulting in excessive coarse aggregate on both sides of the pavement water stable layer or surface layer, which is more prone to segregation phenomenon, further affecting the engineering quality.

[0005] In view of the above, there is an urgent need for a spiral paving machine for asphalt concrete to solve the problems in the prior art. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a spiral paving machine for asphalt concrete, and the specific technical scheme is as follows:

[0007] A spiral paving machine for asphalt concrete, comprising a frame, a spiral paving assembly, a paving controller, and an ironing plate, wherein the paving controller and the ironing plate are arranged on the frame.

[0008] The spiral paving assembly comprises at least two spiral paving devices connected in sequence, each spiral paving device is connected to the frame through a lifting suspension bracket, and the spiral paving device and the lifting suspension bracket are connected to the paving controller.

[0009] Optionally, the spiral paving device comprises a rotating shaft, spiral vanes, spiral blades, and a power source, the spiral vanes are arranged at both ends of the rotating shaft, the spiral blades are detachably arranged on the rotating shaft, and the power source is connected to the rotating shaft to drive the rotating shaft to rotate.

[0010] Optionally, the spiral directions of the spiral blades between adjacent spiral paving devices are opposite, and the rotating directions of the rotating shafts are the same.

[0011] Optionally, the rotating shaft is provided with a spiral mounting portion, and the spiral blades are connected to the spiral mounting portion through bolts.

[0012] Optionally, the spiral blades include blades with different diameters, and the diameters of adjacent spiral blades are different.

[0013] Optionally, the screed is arranged below the spiral paver, and the length of the spiral paver is smaller than 0.5-0.6 m than the width of the screed.

[0014] Optionally, the spiral paver further includes a scraper conveyor arranged below the spiral paving assembly and used for conveying the asphalt mixture.

[0015] The technical scheme of the utility model has the following beneficial effects:

[0016] Compared with the prior art, the utility model provides a spiral paver for asphalt concrete, which controls uniform paving of the mixture by segmentally arranging the spiral pavers and adjusting the height of the spiral pavers and the diameter of the blades on the spiral pavers, so as to solve the problem of segregation.

[0017] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The utility model will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model.

[0019] In the drawings:

[0020] Figure 1 is a structural schematic view of the spiral paver in the preferred embodiment of the utility model;

[0021] Figure 2 is Figure 1 is a connection schematic view of the spiral paver and the lifting suspension support in the preferred embodiment of the utility model;

[0022] Figure 3 is Figure 1 is a structural schematic view of the spiral paver in the preferred embodiment of the utility model.

[0023] In the drawings, 1 is a rack, 2 is a paving controller, 3 is a screed, 4 is a spiral paver, 401 is a rotating shaft, 402 is a spiral blade, 403 is a spiral blade, 404 is a spiral mounting portion, 405 is a bolt, 5 is a lifting suspension support. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the drawings, but the present application can be implemented in various different ways as limited and covered by the claims.

[0025] Embodiment:

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 is a structural schematic view of a spiral paving machine in the preferred embodiment of the present application; Figure 2 is Figure 1 a connection schematic view of a spiral paving device and a lifting suspension support in the preferred embodiment of the present application; Figure 3 is Figure 1 a structural schematic view of a spiral paving device in the preferred embodiment of the present application.

[0027] As shown in Figure 1 and Figure 2 , the present embodiment provides a spiral paving machine for asphalt concrete, which comprises a rack 1, a spiral paving assembly, a paving controller 2 and a screed 3, wherein the paving controller 2 and the screed 3 are arranged on the rack 1.

[0028] The spiral paving assembly comprises at least two spiral paving devices 4 connected in sequence, each of which is connected to the rack 1 through a lifting suspension support 5, and the spiral paving device 4 and the lifting suspension support 5 are connected to the paving controller 2.

[0029] The paving controller 2 adjusts the height of each spiral paving device 4 by controlling the lifting suspension support 5, thereby ensuring that the asphalt concrete can be evenly paved and solving the problem of asphalt concrete segregation.

[0030] Specifically, the spiral paving assembly in the present embodiment comprises three spiral paving devices connected in sequence, i.e., a left spiral paving device, a middle spiral paving device and a right spiral paving device.

[0031] It should be noted that the spiral paving machine in the present embodiment further comprises a transmission system, an automatic leveling device and an electrical control system, etc., wherein the transmission system, the automatic leveling device and the electrical control system are conventional settings in the existing spiral paving machine, and the present embodiment will not be described in detail.

[0032] As shown in Figure 3 , the spiral paving device 4 comprises a rotating shaft 401, spiral vanes 402, spiral blades 403 and a power source (not shown in the figure), wherein the spiral vanes 402 are arranged at both ends of the rotating shaft 401, the spiral blades 403 are detachably arranged on the rotating shaft 401, and the power source is connected to the rotating shaft 401 for driving the rotating shaft 401 to rotate.

[0033] Further, the power source in the embodiment can be an electric motor, which is arranged at a middle position of the rotating shaft, and the electric motor is connected to the paving controller through a signal line.

[0034] In the embodiment, the spiral directions of the spiral blades 403 are opposite to each other, and the rotating directions of the rotating shafts 401 are the same between adjacent spiral paving machines 4.

[0035] Specifically, the rotating shaft 401 is provided with a spiral mounting portion 404, and the spiral blade 403 is connected to the spiral mounting portion 404 through a bolt 405. The spiral mounting portion 404 in the embodiment has a shape similar to a spiral auger, and is provided with a bolt mounting hole. The spiral blade 403 is provided with a through hole matched with the bolt mounting hole, and the spiral blade 403 is detachably connected to the spiral mounting portion 404 through the bolt.

[0036] In the embodiment, the spiral blade 403 includes multiple blades with different diameters, and the diameters of adjacent spiral blades 403 are different. Specifically, the specifications of the spiral blades 403 include blades with diameters of 420 mm and 360 mm, and half blades with diameters of 210 mm and 180 mm.

[0037] Further, the screed 3 is arranged below the spiral paving machine 4, and the length of each spiral paving machine 4 is smaller than the width of the screed 3 by 0.5-0.6 m, so as to prevent the spiral from conveying the asphalt concrete out of the range of the spiral paving machine 4. When the paving width is equal to the width of the spiral paving machine 4, the outermost spiral blade 403 can be removed, so as to prevent too much material from accumulating at both ends of the screed 3, and to prevent the uniformity and flatness of the paving layer from being affected, and to reduce the abrasion of the spiral blade 403.

[0038] The spiral paving machine in the embodiment further includes a scraper conveyor, which is arranged below the spiral paving assembly and behind the screed 3, and is used to convey the asphalt concrete to the positions of the spiral paving machine and the screed 3.

[0039] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spiral paver for asphalt concrete, characterized in that The invention relates to a paving machine, comprising a frame (1), a spiral paving assembly, a paving controller (2) and a screed (3), wherein the paving controller (2) and the screed (3) are arranged on the frame (1); The spiral paving assembly comprises at least two spiral paving devices (4) connected in sequence, each spiral paving device (4) is connected to the frame (1) by a lifting suspension bracket (5), and the spiral paving device (4) and the lifting suspension bracket (5) are connected to the paving controller (2).

2. The spiral paver of claim 1, wherein, The spiral paving device (4) comprises a rotating shaft (401), spiral paddles (402) arranged at both ends of the rotating shaft (401), spiral blades (403) arranged on the rotating shaft (401) in a detachable manner, and a power source connected to the rotating shaft (401) for driving the rotating shaft (401) to rotate.

3. The spiral paver of claim 2, wherein, The spiral directions of the spiral blades (403) of adjacent spiral paving devices (4) are opposite, and the rotating directions of the rotating shafts (401) are the same.

4. The spiral paver of claim 2, wherein, The rotating shaft (401) is provided with a spiral mounting portion (404), and the spiral blades (403) are connected to the spiral mounting portion (404) by bolts (405).

5. The spiral paver of claim 2, wherein, The spiral blades (403) comprise multiple blades with different diameters, and the diameters of adjacent spiral blades (403) are different.

6. The spiral paver of claim 1, wherein, The screed (3) is arranged below the spiral paving devices (4), and the lengths of all the spiral paving devices (4) are 0.5-0.6 m smaller than the width of the screed (3).

7. The spiral paver of claim 1, wherein, Further comprising a scraper conveyor arranged below the spiral paving assembly for conveying asphalt mixture.

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