Old pavement milling device

Abstract

The utility model relates to an old pavement milling device, and relates to the field of pavement milling. The old pavement milling device comprises a machine frame, a milling cylinder, a cleaning component and a connecting assembly, the cleaning component comprises a protective cover, a cleaning brush, a spraying pipe and a connecting pipe head, the spraying pipe in the old pavement milling device can conveniently humidify the outer surface of the milling cylinder, asphalt concrete adhered to the outer surface of the milling cylinder can be conveniently cleaned by the cleaning brush, and the cleaning effect is good; in addition, the cleaning component is connected with the machine frame through the connecting assembly, so that the cleaning component can be conveniently detached from the machine frame, the cleaning component can be conveniently overhauled and cleaned, and the service life of the cleaning component is effectively guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of road milling, and particularly relates to an old road milling device. Background Art

[0002] In the related art, a road milling device with the publication number of CN218911062U includes a machine body. A push handle is fixedly connected to an outer wall on one side of the machine body. A milling drum is arranged inside the machine body. Two partition plates are symmetrically distributed and fixed inside the machine body. A dust removal structure is arranged inside the machine body. The dust removal structure includes a water tank, a water pump, a water outlet pipe, a water pipe, a corrugated diversion pipe and a high-pressure nozzle. For this road milling device, the water pump extracts the water in the water tank and flows it into the water pipe through the water outlet pipe, and then flows into the corrugated diversion pipe through the water pipe. Furthermore, it is sprayed on the milling drum through the high-pressure nozzle on one side of the corrugated diversion pipe to reduce the generation of dust during the working process of the milling drum, and thus play a role in protecting the physical and mental health of the staff.

[0003] In view of the design characteristics of the above-mentioned road milling device, the inventor found that the asphalt concrete ground has a relatively high viscosity. When the milling machine works for a long time, the surface of the tool is prone to adhere to asphalt materials, which affects the subsequent milling operation and reduces the work efficiency. The above device lacks a mechanism for cleaning the tool. Summary of the Utility Model

[0004] In order to solve the situation that due to its own design characteristics, the current road milling device has the problem that the inventor found that the asphalt concrete ground has a relatively high viscosity. When the milling machine works for a long time, the surface of the tool is prone to adhere to asphalt materials, which affects the subsequent milling operation and reduces the work efficiency. This application provides an old road milling device.

[0005] An old road milling device provided by this application adopts the following technical solution: It includes a frame, a milling drum arranged on the frame, a cleaning component arranged on the upper end surface of the milling drum for cleaning the milling drum, and a connecting component arranged between the cleaning component and the frame. The cleaning component includes a circular arc-shaped protective cover arranged on the upper end surface of the milling drum, cleaning brushes evenly arranged on the inner wall of the protective cover, a spray pipe arranged at the highest point of the inner cavity arc of the protective cover, and a connecting pipe head communicated with the spray pipe. The connecting pipe head is externally connected to a water storage device.

[0006] By adopting the above technical solution, the spray pipe facilitates humidifying the outer surface of the milling drum, which not only facilitates the cleaning brush to clean the asphalt concrete adhered to the outer surface of the milling drum, but also effectively avoids the dust flying everywhere during the cleaning process. In addition, the cleaning component is connected to the frame through the connecting component, which facilitates removing the cleaning component from the frame, thereby facilitating the maintenance and cleaning of the cleaning component, and effectively ensuring the service life of the cleaning component.

[0007] Optionally, the protective cover is provided with the same curvature as the milling drum, and the protective cover is provided with the same length as the milling drum, and the lower end surface of the protective cover is arranged in the upper middle part in the axial direction of the milling drum.

[0008] By adopting the above technical solution, not only the obstruction to the working of the milling drum is reduced, but also the cleaning is made more convenient, the cleaning effect is improved, and the protective cover facilitates protecting the outer periphery of the milling drum during the cleaning process, effectively avoiding the splashing of asphalt concrete everywhere during the cleaning process.

[0009] Optionally, the connecting component includes limit steps fixedly arranged on both sides of the upper end surface of the protective cover, connecting columns fixedly arranged on the upper end surfaces of the limit steps, connecting sleeves fixedly arranged on the lower end surface of the frame and coaxially arranged with the connecting columns, and fixing screws for connecting the connecting sleeves and the connecting columns. The fixing screws penetrate through the frame and are connected to the connecting columns, and threaded holes adapted to the fixing screws are arranged on the connecting columns.

[0010] By adopting the above technical solution, it is further convenient to connect the connecting sleeve and the connecting column through the fixing screws, thereby facilitating the disassembly and assembly of the cleaning component and the frame.

[0011] Optionally, the outer diameter of the connecting step is larger than the outer diameter of the connecting sleeve.

[0012] By adopting the above technical solution, the connecting step facilitates limiting the connecting sleeve.

[0013] Optionally, it further includes a positioning hole arranged on the upper end surface of the frame and coaxially arranged with the connecting sleeve, and the positioning hole is arranged to be penetrating.

[0014] By adopting the above technical solution, the positioning hole facilitates positioning the installation position of the fixing screw, thereby facilitating connecting the fixing screw and the connecting column.

[0015] Optionally, it further includes a connecting hole arranged on the frame and coaxially arranged with the connecting pipe head, and the connecting hole is arranged to be penetrating.

[0016] By adopting the above technical solution, the connecting hole facilitates connecting the connecting pipe head and the water storage device.

[0017] In summary, the present application includes the following beneficial technical effects:

[0018] 1. The spray pipe facilitates humidifying the outer surface of the milling drum, which not only facilitates the cleaning brush to clean the asphalt concrete adhered to the outer surface of the milling drum, but also effectively avoids the dust flying everywhere during the cleaning process.

[0019] 2. The connection assembly includes a limit step, a connection column, a connection sleeve and a fixing screw. The fixing screw passes through the frame and is connected to the connection column. A threaded hole adapted to the fixing screw is provided on the connection column, so that it is convenient to connect the connection sleeve to the connection column through the fixing screw, thereby facilitating the disassembly and assembly of the cleaning component and the frame. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the overall structure of the old pavement milling device of the present application;

[0021] Figure 2 is a schematic structural diagram when the frame and the cleaning component in the old pavement milling device of the present application are connected;

[0022] Figure 3 is a schematic structural diagram of the cleaning component in the old pavement milling device of the present application;

[0023] Figure 4 is in the old pavement milling device of the present application Figure 3 schematic structural diagram of a partial half-sectional view of.

[0024] Description of the reference numerals: 1, frame; 10, positioning hole; 2, milling drum; 31, protective cover; 32, cleaning brush; 331, limit step; 332, connection column; 34, connection pipe head; 341, connection hole; 35, spray pipe; 41, connection sleeve; 42, fixing screw. Detailed Embodiment

[0025] The following further describes the present application in detail with reference to the drawings.

[0026] Specifically, please refer to Figure 1 and Figure 2, an embodiment of the present application discloses an old pavement milling device. It includes a frame 1, a milling drum 2 arranged on the frame 1, and a cleaning component arranged on the upper end surface of the milling drum 2 for cleaning the milling drum 2. The cleaning component includes an arc-shaped protective cover 31 arranged on the upper end surface of the milling drum 2, cleaning brushes 32 uniformly arranged on the inner wall of the protective cover 31, a spray pipe 35 arranged at the highest point of the inner cavity radian of the protective cover 31, and a connecting pipe head 34 communicated with the spray pipe 35. The connecting pipe head 34 is externally connected to a water storage device. The protective cover 31 is arranged with the same curvature as the milling drum 2, and the protective cover 31 is arranged with the same length as the milling drum 2. Moreover, the lower end surface of the protective cover 31 is arranged in the upper middle part in the axial direction of the milling drum 2, which not only reduces the obstruction to the working of the milling drum 2 but also makes the cleaning more convenient, improves the cleaning effect, and the protective cover 31 is convenient for protecting the outer circumference of the milling drum 2 during the cleaning process, effectively avoiding the splashing of asphalt concrete everywhere during the cleaning process;

[0027] The spray pipe 35 is convenient for humidifying the outer surface of the milling drum 2, which is not only convenient for the cleaning brushes 32 to clean the asphalt concrete adhered to the outer surface of the milling drum 2 but also effectively avoids the flying of dust everywhere during the cleaning process.

[0028] For details, please refer to Figure 3 and Figure 4 , a connecting component is arranged between the cleaning component and the frame 1. The connecting component includes limit steps 331 fixedly arranged on both sides of the upper end surface of the protective cover 31, connecting columns 332 fixedly arranged on the upper end surface of the limit steps 331, a connecting sleeve 41 fixedly arranged on the lower end surface of the frame 1 and coaxially arranged with the connecting columns 332, and fixing screws 42 for connecting the connecting sleeve 41 and the connecting columns 332. The fixing screws 42 penetrate through the frame 1 and are connected to the connecting columns 332. Threaded holes adapted to the fixing screws 42 are arranged on the connecting columns 332, so as to facilitate the connection of the connecting sleeve 41 and the connecting columns 332 through the fixing screws 42, thereby facilitating the disassembly and assembly of the cleaning component and the frame 1; the outer diameter of the connecting step is larger than the outer diameter of the connecting sleeve 41, and the connecting step is convenient for limiting the connecting sleeve 41.

[0029] For details, please refer to Figure 2 , it further includes a positioning hole 10 arranged on the upper end surface of the frame 1 and coaxially arranged with the connecting sleeve 41. The positioning hole 10 is arranged to be penetrating. The positioning hole 10 is convenient for positioning the installation position of the fixing screws 42, so as to facilitate the connection of the fixing screws 42 and the connecting columns 332.

[0030] For details, please refer to Figure 1 and Figure 2 , in addition, it further includes a connecting hole 341 arranged on the frame 1 and coaxially arranged with the connecting pipe head 34. The connecting hole 341 is arranged to be penetrating. The connecting hole 341 is convenient for connecting the connecting pipe head 34 and the water storage device.

[0031] The implementation principle of an old pavement milling device in an embodiment of this application is as follows: The spray pipe 35 is externally connected to a water storage device through a connecting pipe head 34. The spray pipe 35 facilitates humidifying the outer surface of the milling drum 2, which not only facilitates the cleaning brush 32 to clean the asphalt concrete adhered to the outer surface of the milling drum 2, but also effectively avoids the dust flying everywhere during the cleaning process.

[0032] How to disassemble and assemble the cleaning component: When connecting, the connecting column 332 is sleeved with the connecting sleeve 41 until the lower end surface of the connecting sleeve 41 contacts the upper end surface of the connecting step, and then the fixing screw 42 passes through the frame 1 and is connected to the threaded hole on the connecting column 332, thus connecting the cleaning component to the frame 1.

[0033] When disassembling and assembling, disassemble the fixing screw 42 from the connecting column 332 and remove the protective cover 31 from the upper end surface of the milling drum 2.

[0034] The above are all preferred embodiments of this application. Without restricting the protection scope of this application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An old road surface milling device, characterized in that: The invention comprises a frame (1), a milling cylinder (2) arranged on the frame (1), a cleaning component arranged on the upper end surface of the milling cylinder (2) for cleaning the milling cylinder (2), and a connecting component arranged between the cleaning component and the frame (1).

2. The old road surface milling device according to claim 1, characterized in that: The cleaning component comprises a protective cover (31) with an arc-shaped structure arranged on the upper end surface of the milling barrel (2), a cleaning brush (32) evenly arranged on the inner wall of the protective cover (31), a spray pipe (35) arranged at the highest point of the arc of the inner cavity of the protective cover (31), and a connecting pipe head (34) connected to the spray pipe (35), wherein the connecting pipe head (34) is externally connected to a water storage device.

3. The old road surface milling device according to claim 2, characterized in that: The protective cover (31) and the milling cylinder (2) are arranged with the same curvature, and the protective cover (31) and the milling cylinder (2) are arranged with the same length, and the lower end surface of the protective cover (31) is arranged in the middle and upper part of the milling cylinder (2) in the axial direction.

4. The old road surface milling device according to claim 3, characterized in that: The connection assembly comprises a limit step (331) fixedly arranged on both sides of the upper end surface of the protective cover (31), a connection column (332) fixedly arranged on the upper end surface of the limit step (331), a connection sleeve (41) fixedly arranged on the lower end surface of the frame (1) and coaxially arranged with the connection column (332), and a fixing screw (42) for connecting the connection sleeve (41) to the connection column (332).

5. The old road surface milling device according to claim 4, characterized in that: The fixing screw (42) passes through the frame (1) and is connected to the connecting column (332), and the connecting column (332) is provided with a threaded hole that is compatible with the fixing screw (42).

6. The old road surface milling device according to claim 5, characterized in that: It also includes a positioning hole (10) arranged on the upper end surface of the frame (1) and coaxially arranged with the connecting sleeve (41), and the positioning hole (10) is arranged to be penetrating.

7. The old road surface milling device according to claim 6, characterized in that: It also includes a connection hole (341) arranged on the frame (1) and coaxially arranged with the connection pipe head (34), and the connection hole (341) is arranged to be penetrating.

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