Edge cutting device for asphalt pavement construction

Abstract

The utility model relates to the technical field of road pavement construction, in particular to an edge cutting device for asphalt pavement construction, which comprises a movable frame body and a guide mechanism, a lifter horizontally slides on the movable frame body, a sliding lifting mechanism is fixedly mounted at the output end of the lifter, and the sliding lifting mechanism vertically slides in the movable frame body. A driver is fixedly installed on one side of the sliding lifting mechanism, a main cutting disc is fixedly installed at the output end of the driver, the axis direction of an output shaft of the driver is consistent with the sliding direction of the lifter, the guide mechanism and the main cutting disc are arranged on the same side, and the guide mechanism and the sliding lifting mechanism are in sliding connection in the vertical direction. And a grooving mechanism capable of cutting a guide groove is arranged in the guide mechanism. The road surface trimming device solves the problem that an existing road surface construction trimming device lacks continuity and is inconvenient to trim and trim a road surface layer at a long distance along a line.

Description

Technical Field

[0001] The utility model relates to the technical field of road pavement construction, in particular to a trimming device used for asphalt pavement construction. Background Art

[0002] Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed into mineral materials. Asphalt binder improves the ability of paving aggregate to resist damage to the road surface caused by traffic and natural factors, making the road surface smooth, dust-free, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. Asphalt pavement generally includes base layer, subbase layer and asphalt surface layer. During the construction of asphalt surface layer, it is generally necessary to trim the irregular edges on both sides of the surface layer. At present, the edges of the pavement surface layer are generally trimmed manually or with special trimming equipment.

[0003] In the prior art, for example, a Chinese patent with announcement number CN219930669U proposes a municipal pavement construction trimming device, which adjusts the displacement of the cutting knife through a cutting knife displacement adjustment mechanism to avoid the cutting knife and the uneven positions on both sides of the pavement being not in line after the device is fixed, resulting in the inability to trim the uneven positions of the pavement, and the device is fixed at a specified position through a device fixing mechanism, thereby ensuring that the device can stably trim the pavement. However, if the surface trimming work is to be carried out along a long distance, the fixing function of the device fixing mechanism needs to be frequently released, so the above-mentioned trimming device lacks continuity, and the fixing nails in the device fixing mechanism will damage the pavement surface. Utility Model Content

[0004] The utility model provides a trimming device for asphalt pavement construction, which solves the problem that the existing trimming devices for pavement construction lack continuity and are inconvenient for trimming the pavement surface layer over a long distance along the line.

[0005] To achieve the above-mentioned purpose, the utility model provides a trimming device for asphalt pavement construction, comprising a movable frame and a guide mechanism;

[0006] A lifter is horizontally slidable on the movable frame, a sliding lift mechanism is fixedly installed at the output end of the lifter, and the sliding lift mechanism slides vertically in the movable frame;

[0007] A driver is fixedly installed on one side of the sliding lifting mechanism, a main cutting disc is fixedly installed on the output end of the driver, and the axial direction of the output shaft of the driver is consistent with the sliding direction of the lifter;

[0008] The guide mechanism is arranged on the same side as the main cutting disc, and the guide mechanism is connected to the sliding lifting mechanism in a vertical sliding direction. A slotting mechanism capable of cutting a guide slot is arranged in the guide mechanism.

[0009] Preferably, the mobile frame includes a mobile bottom frame, side support walls, a side support frame and a top frame, the side support frames and the side support walls are respectively fixedly connected to the left and right sides of the mobile bottom frame, the side support frames and the side support walls are vertically arranged and parallel to each other, and the top frame is fixedly connected to the upper ends of the side support frames and the side support walls;

[0010] A sliding connection frame and a sliding connection column are provided on the upper surface of the movable bottom frame for sliding along the left-right direction. The sliding connection frame is arranged at the rear side of the bottom frame, and the sliding connection column is arranged at the front side of the bottom frame.

[0011] Preferably, there are two mutually parallel lifting beams sliding vertically between the side support frame and the side support wall;

[0012] A sliding hole is provided on the side surface of the lifting beam.

[0013] Preferably, a fixed beam is fixedly connected inside the top frame;

[0014] A connecting block is provided on one side surface of the fixed beam for sliding along the left-right direction;

[0015] The lifter is fixedly mounted on the connection block.

[0016] Preferably, a motor 1 is disposed outside the top frame, and a screw rod 1 is fixedly connected to the output end of the motor 1;

[0017] The screw rod 1 rotates in the top frame, and the axis direction of the screw rod 1 is consistent with the sliding direction of the connecting block;

[0018] The screw rod 1 is threadedly connected to the connecting block.

[0019] Preferably, the sliding lifting mechanism comprises a sliding mounting plate and two lifting frames, the two lifting frames are respectively fixedly connected to the front and rear sides of the sliding mounting plate through the connecting plate, and the connecting plate slides in the sliding hole;

[0020] The output end of the lifter is fixedly connected to the upper surface of the sliding mounting plate;

[0021] The two lifting frames are respectively connected to the sliding connection frame and the sliding connection column in a vertical sliding manner.

[0022] Preferably, the driver is motor four, the motor four is fixedly mounted on the side of the sliding mounting plate, and the motor four slides vertically in the side support frame, and the main cutting disk is fixedly mounted on the output end of the motor four.

[0023] Preferably, the guide mechanism further comprises a guide rod, the upper surface of which is fixedly connected with a lifting frame and a lifting connection frame;

[0024] The lifting frame is arranged behind the lifting connection frame.

[0025] Preferably, the sliding connection frame is in an inverted L-shape, the lifting frame is vertically slidably connected to the vertical portion of the sliding connection frame, and the horizontal portion of the sliding connection frame abuts against the upper surface of the lifting frame;

[0026] A second motor is fixedly mounted on the upper surface of the horizontal portion of the sliding connection frame, and a second screw rod is fixedly connected to the output end of the second motor;

[0027] The lower end of the second screw rod passes through the horizontal portion of the sliding connection frame and the top wall of the lifting frame to be rotatably connected to the guide rod, and the lifting frame is threadedly connected to the second screw rod;

[0028] The lifting connection frame is in an inverted L shape, and the free end of the horizontal portion of the lifting connection frame is vertically slidably connected to the sliding connection column;

[0029] The guide rod is provided with a lifting hole and a mounting hole, the lifting hole is located between the lifting frame and the lifting connection frame and corresponds to the position of the main cutting disk, and the mounting hole is located on the guide rod section on the front side of the lifting connection frame;

[0030] A guide plate is provided on the lower surface of the rear end of the guide rod.

[0031] Preferably, the slotting mechanism comprises a motor three and a guide cutting disc, the motor three is fixedly mounted on the inner side of the guide rod, the guide cutting disc is rotatably connected in the mounting hole, and the guide cutting disc is fixedly mounted on the output end of the motor three, and the edge of the guide cutting disc passes through the mounting hole and extends below the lower surface of the guide rod;

[0032] The guide cutting disc, the main cutting disc and the guide plate are located on the same straight line.

[0033] The utility model has the following beneficial effects:

[0034] 1. The guide cutting disc can not only leave a cutting groove with a guiding function, so that the main cutting disc can continuously cut along the specified direction and prevent the main cutting disc from deviating from the cutting route, but also the guide plate can stabilize the guide rod and play a guiding role, ensuring that the guide cutting disc cuts the groove along the specified route;

[0035] 2. First, the trimming device is moved to the edge of the road surface through the mobile frame, and the motor 1 is started. The motor 1 drives the screw rod 1 to rotate, and the screw rod 1 drives the connecting block to slide in the left and right directions. The connecting block drives the lifter to slide in the left and right directions, and the sliding lifting mechanism slides in the front and rear directions. The sliding lifting mechanism drives the main cutting disk to slide in the left and right directions through the motor 4. At the same time, the sliding lifting mechanism drives the guide mechanism to move in the left and right directions through the sliding connecting frame and the sliding connecting column, so as to adjust the horizontal position of the main cutting disk. In this way, there is no need to frequently move the mobile frame to adjust the horizontal position of the main cutting disk. The horizontal positions of the guide cutting disk and the guide plate in the guide mechanism will also be adjusted synchronously, which is convenient to operate and saves time and effort.

[0036] 3. The setting of the sliding connecting frame and the sliding connecting column can make the sliding lifting frame drive the motor four and the main cutting disk to move up and down independently, so as to conveniently adjust the cutting depth of the main cutting disk and prevent the guide mechanism from moving up and down with the sliding lifting frame and affecting the main cutting disk from cutting the edge of the road surface. At the same time, when the sliding lifting mechanism drives the motor four and the main cutting disk to move in the left and right directions, the sliding connecting frame and the sliding connecting column can be used to drive the guide mechanism to slide in the left and right directions, so that the main cutting disk is always aligned with the lifting hole, so as to prevent the guide rod from hindering the up and down movement of the cutting disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic diagram of the overall structure of a trimming device for asphalt pavement construction according to the utility model from a top perspective;

[0038] Figure 2 This is a bottom perspective overall structural diagram of a trimming device for asphalt pavement construction according to the utility model;

[0039] Figure 3 It is a schematic diagram of the connection between the moving frame and the sliding lifting mechanism in the trimming device for asphalt pavement construction described in the utility model;

[0040] Figure 4 This is a structural schematic diagram of a sliding lifting mechanism in a trimming device for asphalt pavement construction according to the utility model;

[0041] Figure 5 The utility model is a connection diagram of a movable frame, a sliding lifting mechanism and a guide mechanism in a trimming device for asphalt pavement construction.

[0042] In the figure: 1. movable frame; 11. movable bottom frame; 12. side support wall; 13. side support frame; 14. top frame; 15. fixed beam; 16. connecting block; 17. lifting beam; 171. sliding hole; 2. sliding lifting mechanism; 21. sliding mounting plate; 22. lifting frame; 23. connecting plate; 3. lifter; 4. guide mechanism; 41. guide rod; 411. lifting hole; 412. mounting hole; 42. guide plate; 43. lifting frame; 44. lifting connecting frame; 5. sliding connecting frame; 6. sliding connecting column; 7. motor one; 71. screw rod one; 8. motor two; 81. screw rod two; 9. motor three; 100. main cutting disk; 200. guide cutting disk; 300. motor four. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0044] The utility model provides a cutting device for asphalt pavement construction, such as Figure 1 and Figure 2 As shown, it includes a movable frame 1 and a guide mechanism 4. A lifter 3 is horizontally slidable on the movable frame 1. The lifter 3 adopts a hydraulic cylinder or a pneumatic cylinder. A sliding lifter 2 is fixedly installed on the output end of the lifter 3. The sliding lifter 2 slides vertically in the movable frame 1. A driver is fixedly installed on one side of the sliding lifter 2. A main cutting disk 100 is fixedly installed on the output end of the driver. The axial direction of the output shaft of the driver is consistent with the sliding direction of the lifter 3. The guide mechanism 4 is arranged on the same side as the main cutting disk 100, and the guide mechanism 4 is connected to the sliding lifter along the vertical sliding direction. A grooving mechanism capable of cutting a guide groove is provided in the guide mechanism 4.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, the mobile frame 1 includes a mobile bottom frame 11, side support walls 12, side support frames 13 and a top frame 14. The side support frames 13 and the side support walls 12 are respectively fixedly connected to the left and right sides of the mobile bottom frame 11. The side support frames 13 and the side support walls 12 are vertically arranged and parallel to each other. The top frame 14 is fixedly connected to the upper ends of the side support frames 13 and the side support walls 12.

[0046] like Figure 5 As shown, a sliding connection frame 5 and a sliding connection column 6 are slidably mounted on the upper surface of the movable bottom frame 11 along the left-right direction. The sliding connection frame 5 is arranged at the rear side of the movable bottom frame 11 , and the sliding connection column 6 is arranged at the front side of the movable bottom frame 11 .

[0047] like Figure 3 and Figure 5 As shown, there are two parallel lifting beams 17 sliding vertically between the side support frame 13 and the side support wall 12;

[0048] A sliding hole 171 is provided on the side surface of the lifting beam 17 .

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, a fixed beam 15 is fixedly connected inside the top frame 14;

[0050] A connecting block 16 is provided on one side of the fixed beam 15 for sliding along the left-right direction;

[0051] The lifter 3 is fixedly mounted on the connecting block 16 .

[0052] like Figure 1 , Figure 2 and Figure 3 As shown, a motor 7 is disposed outside the top frame 14, and a screw rod 71 is fixedly connected to the output end of the motor 7;

[0053] The screw rod 71 rotates in the top frame 14, and the axial direction of the screw rod 71 is consistent with the sliding direction of the connecting block 16;

[0054] The screw rod 71 is threadedly connected to the connecting block 16.

[0055] like Figure 4 and Figure 5 As shown, the sliding lifting mechanism 2 includes a sliding mounting plate 21 and two lifting frames 22. The two lifting frames 22 are fixedly connected to the front and rear sides of the sliding mounting plate 21 through connecting plates 23, and the connecting plates 23 slide in the sliding holes 171.

[0056] The output end of the lifter 3 is fixedly connected to the upper surface of the sliding mounting plate 21 .

[0057] like Figure 5 As shown, the two lifting frames 22 are respectively connected to the sliding connection frame 5 and the sliding connection column 6 in a vertical sliding direction.

[0058] like Figure 1 , Figure 3 and Figure 4 As shown, the driver is motor four 300, which is fixedly mounted on the side of the sliding mounting plate 21, and the motor four 300 slides vertically in the side support frame 13, and the main cutting disk 100 is fixedly mounted on the output end of the motor four 300.

[0059] like Figure 2 and Figure 5 As shown, the guide mechanism 4 further includes a guide rod 41, and a lifting frame 43 and a lifting connection frame 44 are fixedly connected to the upper surface of the guide rod 41;

[0060] The lifting frame 43 is arranged behind the lifting connection frame 44 .

[0061] like Figure 3 and Figure 5 As shown, the lifting frame 43 is in an inverted U shape.

[0062] like Figure 5 As shown, the sliding connection frame 5 is inverted L-shaped, the lifting frame 22 is slidably connected to the vertical portion of the sliding connection frame 5 along the vertical direction, and the horizontal portion of the sliding connection frame 5 is against the upper surface of the lifting frame 43.

[0063] like Figure 5 As shown, a second motor 8 is fixedly mounted on the upper surface of the horizontal portion of the sliding connection frame 5, and a second screw rod 81 is fixedly connected to the output end of the second motor 8;

[0064] The lower end of the second screw rod 81 passes through the horizontal portion of the sliding connection frame 5 and the top wall of the lifting frame 43 to be rotatably connected to the guide rod 41 , and the lifting frame 43 is threadedly connected to the second screw rod 81 .

[0065] like Figure 2 and Figure 5 As shown, the lifting connection frame 44 is in an inverted L shape, and the free end of the horizontal portion of the lifting connection frame 44 is vertically slidably connected to the sliding connection column 6.

[0066] like Figure 5 As shown, a lifting hole 411 and an installation hole 412 are provided on the guide rod 41. The lifting hole 411 is located between the lifting frame 43 and the lifting connecting frame 44 and corresponds to the position of the main cutting disk 100. The installation hole 412 is located on the rod section of the guide rod 41 on the front side of the lifting connecting frame 44.

[0067] The setting of the sliding connecting frame 5 and the sliding connecting column 6 can enable the sliding lifting frame 22 to drive the motor four 300 and the main cutting disk 100 to move up and down independently, so as to conveniently adjust the cutting depth of the main cutting disk 100 and prevent the guide mechanism 4 from moving up and down with the sliding lifting frame 22, thereby preventing the main cutting disk 100 from cutting the edge of the road surface. At the same time, when the sliding lifting mechanism 2 drives the motor four 300 and the main cutting disk 100 to move in the left and right directions, the sliding connecting frame 5 and the sliding connecting column 6 can be used to drive the guide mechanism 4 to slide in the left and right directions, so that the main cutting disk 100 is always aligned with the lifting hole 411, thereby preventing the guide rod 41 from hindering the cutting disk from moving up and down.

[0068] like Figure 2 As shown, a guide plate 42 is provided on the lower surface of the rear end of the guide rod 41 .

[0069] like Figure 1 , Figure 2 and Figure 5As shown, the slotting mechanism includes a motor 39 and a guide cutting disc 200, the motor 39 is fixedly mounted on the inner side of the guide rod 41, the guide cutting disc 200 is rotatably connected in the mounting hole 412, and the guide cutting disc 200 is fixedly mounted on the output end of the motor 39, the edge of the guide cutting disc 200 passes through the mounting hole 412, and extends below the lower surface of the guide rod 41;

[0070] The guide cutting disc 200, the main cutting disc 100 and the guide plate 42 are located on the same straight line.

[0071] With the utility model, the trimming device is first moved to the edge of the road surface through the mobile frame 1, and the motor 7 is started. The motor 7 drives the screw rod 71 to rotate, and the screw rod 71 drives the connecting block 16 to slide in the left and right directions. The connecting block 16 drives the lifter 3 to slide in the left and right directions, and the sliding lifting mechanism 2 slides in the front and rear directions accordingly. The sliding lifting mechanism 2 drives the main cutting disk 100 to slide in the left and right directions through the motor 4 300. At the same time, the sliding lifting mechanism 2 drives the guide mechanism 4 to move in the left and right directions through the sliding connecting frame 5 and the sliding connecting column 6, so as to adjust the horizontal position of the main cutting disk 100. In this way, there is no need to frequently move the mobile frame 1 to adjust the horizontal position of the main cutting disk 100. The horizontal positions of the guide cutting disk 200 and the guide plate 42 in the guide mechanism 4 will also be adjusted synchronously, which is convenient to operate and saves time and effort. Then start the lifter 3 and the motor 4 300, the lifter 3 drives the sliding lift mechanism 2 to move downward, the motor 4 300 drives the main cutting disk 100 to rotate, and the sliding lift mechanism 2 drives the motor 4 300 and the main cutting disk 100 to move downward until the main cutting disk 100 cuts off the uneven part of the edge of the road surface layer, and then pushes the mobile frame 1 forward to move it The distance is greater than the length of the guide rod 41, and then the moving frame 1 is stopped, and the motor 2 8 and the motor 3 9 are started. The motor 2 8 drives the screw rod 2 81 to rotate, and the motor 3 9 drives the guide cutting disk 200 to rotate. The screw rod 2 81 drives the lifting frame 43 to move downward, and the lifting frame 43 drives the guide rod 41 to move downward. The guide rod 41 drives the guide plate 42 and the guide cutting disk 200 to move downward until the ground of the guide rod 41 is against the pavement surface layer. At this time, the guide plate 42 is close to the side of the trimmed pavement surface layer, the guide cutting disk 200 cuts into the pavement surface layer, and the lifting connecting frame 44 also slides downward. The main cutting disc 100 moves forward and then continues to push the movable frame 1 forward. The guide cutting disc 200 continuously reserves a cutting groove in front of the main cutting disc 100. The main cutting disc 100 moves forward along the cutting groove and further cuts downward along the cutting groove to cut off the uneven edge of the road surface. In this way, the guide cutting disc 200 can not only leave a cutting groove with a guiding function, but also enable the main cutting disc 100 to perform continuous cutting along a specified direction to prevent the main cutting disc 100 from deviating from the cutting route. At the same time, the guide plate 42 can stabilize the guide rod 41 and play a guiding role to ensure that the guide cutting disc 200 cuts the groove along the specified route.

[0072] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A trimming device for asphalt pavement construction, characterized in that: It comprises a movable frame (1) and a guide mechanism (4); A lifter (3) is horizontally slidable on the movable frame (1); a sliding lift mechanism (2) is fixedly mounted on the output end of the lifter (3); and the sliding lift mechanism (2) slides vertically inside the movable frame (1); A driver is fixedly mounted on one side of the sliding lifting mechanism (2), a main cutting disc (100) is fixedly mounted on the output end of the driver, and the axial direction of the output shaft of the driver is consistent with the sliding direction of the lifter (3); The guide mechanism (4) is arranged on the same side as the main cutting disc (100), and the guide mechanism (4) is connected to the sliding lifting mechanism in a vertical sliding manner. A slotting mechanism capable of cutting a guide slot is provided in the guide mechanism (4).

2. A trimming device for asphalt pavement construction according to claim 1, characterized in that: The movable frame (1) comprises a movable bottom frame (11), a side support wall (12), a side support frame (13) and a top frame (14); the side support frame (13) and the side support wall (12) are respectively fixedly connected to the left and right sides of the movable bottom frame (11); the side support frame (13) and the side support wall (12) are vertically arranged and parallel to each other; and the top frame (14) is fixedly connected to the upper ends of the side support frame (13) and the side support wall (12); A sliding connection frame (5) and a sliding connection column (6) are provided on the upper surface of the movable bottom frame (11) so as to slide in the left-right direction. The sliding connection frame (5) is arranged on the rear side of the movable bottom frame (11), and the sliding connection column (6) is arranged on the front side of the movable bottom frame (11).

3. The trimming device for asphalt pavement construction according to claim 2, characterized in that: Two mutually parallel lifting beams (17) are arranged to slide vertically between the side support frame (13) and the side support wall (12); A sliding hole (171) is provided on the side surface of the lifting beam (17).

4. The trimming device for asphalt pavement construction according to claim 3, characterized in that: A fixed beam (15) is fixedly connected inside the top frame (14); A connecting block (16) is provided on one side surface of the fixed beam (15) for sliding along the left-right direction; The lifter (3) is fixedly mounted on the connecting block (16).

5. The trimming device for asphalt pavement construction according to claim 4, characterized in that: A motor (7) is disposed outside the top frame (14), and a screw rod (71) is fixedly connected to the output end of the motor (7); The screw rod 1 (71) rotates in the top frame (14), and the axial direction of the screw rod 1 (71) is consistent with the sliding direction of the connecting block (16); The screw rod 1 (71) is threadedly connected to the connecting block (16).

6. The trimming device for asphalt pavement construction according to claim 3, characterized in that: The sliding lifting mechanism (2) comprises a sliding mounting plate (21) and two lifting frames (22), the two lifting frames (22) being fixedly connected to the front and rear sides of the sliding mounting plate (21) respectively through connecting plates (23), and the connecting plates (23) slide in the sliding holes (171); The output end of the lifter (3) is fixedly connected to the upper surface of the sliding mounting plate (21); The two lifting frames (22) are respectively connected to the sliding connection frame (5) and the sliding connection column (6) in a vertical sliding manner.

7. The trimming device for asphalt pavement construction according to claim 6, characterized in that: The driver is motor four (300), and the motor four (300) is fixedly mounted on the side of the sliding mounting plate (21), and the motor four (300) slides vertically in the side support frame (13), and the main cutting disk (100) is fixedly mounted on the output end of the motor four (300).

8. The trimming device for asphalt pavement construction according to claim 6, characterized in that: The guide mechanism (4) further comprises a guide rod (41), the upper surface of which is fixedly connected to a lifting frame (43) and a lifting connection frame (44); The lifting frame (43) is arranged behind the lifting connection frame (44).

9. The trimming device for asphalt pavement construction according to claim 8, characterized in that: The sliding connection frame (5) is in an inverted L shape, the lifting frame (22) is connected to the vertical portion of the sliding connection frame (5) in a vertical sliding manner, and the horizontal portion of the sliding connection frame (5) abuts against the upper surface of the lifting frame (43); A second motor (8) is fixedly mounted on the upper surface of the horizontal portion of the sliding connection frame (5), and a second screw rod (81) is fixedly connected to the output end of the second motor (8); The lower end of the second screw rod (81) passes through the horizontal portion of the sliding connection frame (5) and the top wall of the lifting frame (43) to be rotatably connected to the guide rod (41), and the lifting frame (43) is threadedly connected to the second screw rod (81); The lifting connection frame (44) is in an inverted L shape, and the free end of the horizontal portion of the lifting connection frame (44) is vertically slidably connected to the sliding connection column (6); The guide rod (41) is provided with a lifting hole (411) and a mounting hole (412); the lifting hole (411) is located between the lifting frame (43) and the lifting connection frame (44) and corresponds to the position of the main cutting disc (100); and the mounting hole (412) is located on the rod section of the guide rod (41) on the front side of the lifting connection frame (44); A guide plate (42) is provided on the lower surface of the rear end of the guide rod (41).

10. The trimming device for asphalt pavement construction according to claim 9, characterized in that: The slotting mechanism comprises a motor three (9) and a guide cutting disc (200), wherein the motor three (9) is fixedly mounted on the inner side of the guide rod (41), the guide cutting disc (200) is rotatably connected in the mounting hole (412), and the guide cutting disc (200) is fixedly mounted on the output end of the motor three (9), and the edge of the guide cutting disc (200) passes through the mounting hole (412) and extends below the lower surface of the guide rod (41); The guide cutting disc (200), the main cutting disc (100) and the guide plate (42) are located on the same straight line.

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