Steel slag asphalt concrete road paving device and construction method

Abstract

The invention discloses a steel slag asphalt concrete road paving device and a construction method thereof. The steel slag asphalt concrete road paving device comprises a vehicle frame, a material paving roller is arranged on the vehicle frame, an annular limiting frame is arranged on the vehicle frame, a feeding mechanism is arranged at the top of the material paving roller, a top opening matched with the feeding mechanism is formed in the material paving roller, and a material paving opening is formed in the bottom of the material paving roller; a front striker plate and a rear striker plate are arranged on the spreading opening; an angle locking gear ring is arranged outside the spreading roller, and an angle locking mechanism is fixed on the frame; a first vibration motor is arranged at the bottom of the material spreading opening, and second vibration motors are arranged on the front material blocking plate and the rear material blocking plate. The construction method further comprises the construction steps of S1 to S6 and the like. According to the paving device disclosed by the invention, broken stones are uniformly thrown on the road surface and are matched with the paving roller for paving, so that automatic throwing and paving are realized in the whole process, manpower is saved, and the road construction efficiency can be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of road paving, and in particular to a steel slag asphalt concrete road paving device and a construction method thereof. Background Art

[0002] Steel slag asphalt concrete road is an innovative road paving technology that uses steel slag as one of the main materials. After being crushed in a special way, it is mixed with asphalt to form a new type of asphalt concrete.

[0003] The traditional paving method uses a steel slag asphalt paving auxiliary device to pave the steel slag mixture, then uses a paver to pave the asphalt, and finally roller compacts the road surface. The asphalt paving auxiliary device includes a rolling wheel and a spreading mechanism. After the gravel is spread on the road surface by the spreading mechanism, the gravel is rolled by a moving rolling wheel. In the asphalt paving and compacting process, the asphalt is first poured on the paved main layer aggregate, and a special vehicle is used to spread the gravel on the road surface. Then, the gravel is evenly spread by manpower, and then rolled by a rolling roller. The asphalt paving auxiliary device in the traditional paving method has low gravel paving efficiency and uneven gravel paving when used, and wastes manpower, making the asphalt concrete road paving efficiency low. Therefore, it is necessary to propose a steel slag asphalt concrete road paving device with higher paving efficiency and a construction method thereof. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a steel slag asphalt concrete road paving device and a construction method thereof.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] A steel slag asphalt concrete road paving device is provided, comprising a frame, a rotatable paving roller is arranged on the frame, an annular limit frame for mounting the paving roller is arranged on the frame, a feeding mechanism is arranged on the top of the paving roller, a top opening cooperating with the feeding mechanism is arranged on the paving roller, a straight-line paving opening is arranged at the bottom of the paving roller, and a movable front baffle plate and a rear baffle plate are arranged on the paving opening; an angle locking gear ring is arranged on the outside of the paving roller, and an angle locking mechanism cooperating with the angle locking gear ring is fixed on the frame; a first vibration motor is arranged at the bottom of the paving opening, and a second vibration motor is arranged on the front baffle plate and the rear baffle plate.

[0007] Furthermore, the cross-section of the annular limit frame is L-shaped, the lateral section of the annular limit frame is arranged inwardly, a lower annular ball groove is arranged on the top of the lateral section of the annular limit frame, a plurality of balls are arranged in the lower annular ball groove, and an upper annular ball groove cooperating with the balls is arranged at the bottom of the paving roller.

[0008] Furthermore, a plurality of first threaded holes are provided in the vertical section of the annular limit frame, and limit screws are provided in the first threaded holes. A limit ring groove cooperating with the limit screws is provided on the outside of the paving roller.

[0009] Furthermore, mounting plates for installing the front baffle plate and the rear baffle plate are provided on both sides of the material paving opening, mounting shafts for installing the front baffle plate and the rear baffle plate are provided on the two mounting plates, sleeves cooperating with the mounting shafts are provided on the front baffle plate and the rear baffle plate, and torsion springs are provided between the front baffle plate, the rear baffle plate and the mounting shafts.

[0010] Furthermore, the angle locking mechanism includes a vertical support block and a radial adjustment screw that cooperates with the angle locking gear ring, and a radial threaded hole for installing the radial adjustment screw is provided on the vertical support block.

[0011] Furthermore, the feeding mechanism includes a main feed pipe, a feed motor, a spiral blade and a conveying shaft, the conveying shaft is connected to the output end of the feed motor, the spiral blade is fixed on the conveying shaft, and the spiral blade and the conveying shaft are installed in the main feed pipe; a feed pipe is arranged at the top of the main feed pipe, and a discharge pipe is arranged at the bottom of the main feed pipe.

[0012] Furthermore, a plurality of angle scale convex strips are arranged on the outside of the material spreading drum, and the plurality of angle scale convex strips correspond to the material spreading projection widths of the plurality of material spreading openings; a plurality of bottom partition plates are arranged on the material spreading openings, and the plurality of bottom partition plates are equidistantly distributed.

[0013] The frame includes two rolling rollers, which are respectively arranged on the front and rear sides of the frame. The frame is provided with a mounting rod for installing an annular limit frame. The outside of the paving roller is provided with a mounting block that cooperates with the mounting rod, and the mounting block is provided with fixing bolts.

[0014] Furthermore, a towing hook is provided on the front side of the frame.

[0015] Furthermore, a feeding bracket for installing the feeding mechanism is provided on the frame.

[0016] A construction method of a steel slag asphalt concrete road paving device comprises the following steps:

[0017] S1: Clean and level the roadbed;

[0018] S2: using a construction device to evenly lay and compact the steel slag mixture on the road base to form a steel slag mixture base;

[0019] S3: Spreading and compacting asphalt on the steel slag mixture base to form an asphalt lower layer;

[0020] S4: Spreading and compacting asphalt on the asphalt lower layer to form an asphalt middle surface layer;

[0021] S5: Spreading and compacting asphalt on the asphalt middle surface layer to form an asphalt upper surface layer;

[0022] S6: Complete asphalt pavement paving and maintain the asphalt pavement.

[0023] The beneficial effects of the present invention are:

[0024] The paving roller of the present invention can rotate on the annular limit frame. According to the width of the paved road, the paving roller is adjusted and rotated to a suitable angle. The feeding width of the paving roller after rotation changes. The projection of the paving opening at the bottom of the paving roller in the road width direction represents the actual paving width of the paving opening, thereby adapting to the paving of roads of different widths. According to the width of the road to be paved, the paving roller is rotated to a suitable angle, and finally the paving roller is locked and fixed by the angle locking mechanism to complete the adjustment of the paving roller angle.

[0025] The paving drum of the present invention is provided with a straight-line paving opening at the bottom, and a movable front baffle plate and a rear baffle plate are provided at the bottom of the paving opening. A first vibration motor is provided on both sides of the paving opening, and a second vibration motor is provided on the front baffle plate and the rear baffle plate. In normal state, the bottoms of the front baffle plate and the rear baffle plate are closed, and the steel slag mixture in the paving drum will not vibrate and fall out of the paving opening. During operation, when the first vibration motor and the second vibration motor work at the same time, the vibration gap at the bottom of the front baffle plate and the rear baffle plate changes, thereby evenly vibrating the steel slag mixture in the paving drum and sprinkling it onto the road base layer, so that the laid steel slag mixture base layer is more uniform.

[0026] The paving roller of the present invention cooperates with the feeding mechanism to realize continuous feeding operation and ensure the continuity of graded gravel paving; at the same time, the paving opening at the bottom of the paving roller is provided with a front baffle plate, a rear baffle plate, a first vibration motor and a second vibration motor. Through the vibration of the first vibration motor and the second vibration motor, in conjunction with the front baffle plate and the rear baffle plate that can be opened and closed at the bottom, more uniform vibration paving of the steel slag mixture can be achieved.

[0027] The paving device of the present invention evenly scatters the crushed stones on the road surface and spreads them in cooperation with the paving roller. The whole process realizes automation of scattering and paving, which saves manpower and can greatly improve the road construction efficiency.

[0028] The steel slag asphalt concrete pavement of the present invention uses steel slag aggregate instead of traditional natural aggregate for the asphalt pavement surface layer, improves the pavement condition, enhances the road service level, extends the road service life, and effectively reduces the initial construction cost and the later maintenance and repair cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0030] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0031] Figure 3 Schematic diagram of the structure of the material spreading roller and the feeding mechanism Figure 1 ;

[0032] Figure 4 Schematic diagram of the structure of the material spreading roller and the feeding mechanism Figure 2 ;

[0033] Figure 5 It is a structural schematic diagram of an annular limit frame;

[0034] Figure 6 It is a structural schematic diagram of the material laying port;

[0035] The main components in the figure are described as follows:

[0036] 1. Frame; 11. Rolling roller; 12. Mounting rod; 2. Paving roller; 21. Angle locking gear ring; 22. Paving opening; 23. Front baffle plate; 24. Rear baffle plate; 25. Mounting plate; 26. Mounting shaft; 27. Torsion spring; 28. First vibration motor; 29. ​​Second vibration motor; 210. Bottom partition plate; 211. Angle scale convex strip; 3. Annular limit frame; 31. Lower annular ball groove; 32. Limit screw; 33. Mounting block; 34. Fixing bolt; 4. Ball; 5. Angle locking mechanism; 51. Vertical support block; 52. Radial adjustment screw; 6. Feed mechanism; 61. Main feed pipe; 62. Feed pipe; 63. Discharge pipe; 64. Feed motor; 7. Feed bracket; 8. Towing hook. DETAILED DESCRIPTION

[0037] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0038] like Figure 1 , 2As shown in Figures 3 and 4, the steel slag asphalt concrete road paving construction device includes a frame 1, a rotatable paving roller 2 is arranged on the frame 1, an annular limit frame 3 for mounting the paving roller 2 is arranged on the frame 1, a feeding mechanism 6 is arranged on the top of the paving roller 2, and a top opening matched with the feeding mechanism 6 is arranged on the paving roller 2. The frame 1 includes two rolling rollers 11, which are respectively arranged at the front and rear sides of the frame 1. The front rolling roller 11 can further compact the cleaned road base, and the rear rolling roller 11 can compact the laid steel slag mixture to form a crushed stone base.

[0039] like Figure 5 As shown, the cross section of the annular limit frame 3 is L-shaped, the transverse section of the annular limit frame 3 is arranged inward, a lower annular ball groove 31 is arranged at the top of the transverse section of the annular limit frame 3, a plurality of balls 4 are arranged in the lower annular ball groove 31, and an upper annular ball groove matching the balls 4 is arranged at the bottom of the paving drum 2. The paving drum 2 is installed in the annular limit frame 3, and a plurality of balls 4 are used to reduce friction between the bottom of the paving drum 2 and the annular limit frame 3, so as to facilitate the rotation adjustment of the paving drum 2.

[0040] The vertical section of the annular limit frame 3 is provided with a plurality of first threaded holes, each of which is provided with a limit screw 32, and the outside of the paving drum 2 is provided with a limit ring groove that cooperates with the limit screw 32. The paving drum 2 is installed on the annular limit frame 3, and the paving drum 2 can be limited by the cooperation of the plurality of limit screws 32 and the limit ring groove, so that the paving drum 2 is installed and limited in the annular limit frame 3, so that the paving drum 2 can only rotate in the annular limit frame 3.

[0041] like Figure 6As shown, a straight-line paving opening 22 is provided at the bottom of the paving drum 2. The paving drum 2 can rotate on the vehicle frame 1 through the annular limit frame 3. By adjusting the rotation angle of the paving drum 2, the projection width of the straight-line paving opening 22 in the paving direction is changed, thereby changing the paving width of the paving opening 22 to meet the paving requirements of roads of different widths. A movable front baffle plate 23 and a rear baffle plate 24 are provided on the paving opening 22. A first vibration motor 28 is provided at the bottom of the paving opening 22, and a second vibration motor 29 is provided on both the front baffle plate 23 and the rear baffle plate 24. Mounting plates 25 for mounting the front baffle plate 23 and the rear baffle plate 24 are provided on both sides of the material paving opening 22. The two mounting plates 25 are welded and fixed on both sides of the material paving opening 22. Mounting shafts 26 for mounting the front baffle plate 23 and the rear baffle plate 24 are provided on the two mounting plates 25. The front baffle plate 23 and the rear baffle plate 24 are provided with sleeves that cooperate with the mounting shafts 26. The front baffle plate 23 and the rear baffle plate 24 are installed on the mounting shafts 26 through the sleeves. Torsion springs 27 are provided between the front baffle plate 23, the rear baffle plate 24 and the mounting shafts 26. The torsion springs 27 are arranged in the middle position of the front baffle plate 23 and the rear baffle plate 24, so that the force distribution of the torsion springs 27 is more uniform. In normal state, under the action of torsion spring 27, the front baffle plate 23 and the rear baffle plate 24 prevent the steel slag mixture in the paving drum 2 from falling from the paving opening 22. When the first vibration motor 28 and the second vibration motor 29 vibrate together, the first vibration motor 28 drives the two sides of the paving opening 22 to vibrate, and the second vibration motor 29 drives the front baffle plate 23 and the rear baffle plate 24 to vibrate respectively, thereby increasing the gap at the bottom between the front baffle plate 23 and the rear baffle plate 24, thereby evenly vibrating and shaking the steel slag mixture in the paving drum 2 down from the paving opening 2, achieving even laying of the steel slag mixture and facilitating further compaction to form a gravel base layer.

[0042] An angle locking gear ring 21 is arranged outside the material spreading drum 2, and an angle locking mechanism 5 cooperating with the angle locking gear ring 21 is fixed on the frame 1. The angle locking mechanism 5 comprises a vertical support block 51 and a radial adjustment screw 52 cooperating with the angle locking gear ring 21, and a radial threaded hole for installing the radial adjustment screw 52 is arranged on the vertical support block 51.

[0043] The feeding mechanism 6 includes a main feeding pipe 61, a feeding motor 64, a spiral blade and a conveying shaft. The conveying shaft is connected to the output end of the feeding motor 64, the spiral blade is fixed on the conveying shaft, and the spiral blade and the conveying shaft are installed in the main feeding pipe 61. A feeding pipe 62 is arranged at the top of the main feeding pipe 61, and a discharge pipe 63 is arranged at the bottom of the main feeding pipe 61. The top opening and the discharge pipe 63 of the feeding mechanism 6 are matched with clearance to ensure that the discharge pipe 63 is not affected when the paving roller 2 rotates. The feeding pipe 62 can be connected to the conveying pipeline for conveying the steel slag mixture, so as to realize continuous feeding of the paving roller 2 by using the feeding mechanism 6.

[0044] The outside of the material spreading drum 2 is provided with a plurality of angle scale convex strips 211, and the plurality of angle scale convex strips 211 correspond to the projection widths of the material spreading of the material spreading openings 22. By rotating and adjusting the angle of the material spreading drum 2, when the radial adjustment screw 52 is fixed, the projection widths of the material spreading of the material spreading drum 2 can be adjusted to a suitable width by corresponding to the angle scale convex strips 211 at a suitable position. The material spreading opening 22 is provided with a plurality of bottom partition plates 210, and the plurality of bottom partition plates 210 are evenly distributed. The bottom partition plates 210 can evenly guide the steel slag mixture falling from the material spreading drum 2 to the material spreading opening 22, so that the steel slag mixture falling from the guided material spreading opening 22 is more uniform.

[0045] The frame 1 is provided with a mounting rod 12 for mounting the annular limit frame 3, and the outside of the paving drum 2 is provided with a mounting block 33 that cooperates with the mounting rod 12. Two mounting blocks 33 are provided on the outside of the paving drum 2, and the mounting blocks 33 are welded and fixed to the outside of the paving drum 2. The mounting rod 12 is a direction rod, and a square through hole is provided on the mounting block 33. The mounting block 33 is installed on the mounting rod 12 through the square through hole. A fixing bolt 34 is provided on the mounting block 33, and the mounting block 33 can be fixed to a suitable position on the mounting rod 12 by the fixing bolt 34, so that the paving drum 2 is fixed below the discharge pipe 63, so that it is convenient to add steel slag mixture to the paving drum 2 through the feeding mechanism 6.

[0046] A towing hook 8 is provided on the front side of the frame 1. The towing vehicle in front can drive the frame 1 to move forward through the towing hook 8, and cooperate with the continuously rolling rolling roller 11, so as to use the paving opening 22 of the paving drum 2 to perform continuous gravel throwing and paving operations. A feeding bracket 7 for installing the feeding mechanism 6 is provided on the frame 1. The bottom of the feeding bracket 7 is welded and fixed on the frame 1. The middle part of the feeding bracket 7 is inclined toward the paving drum 2. A horizontal section that cooperates with the discharge pipe 63 is provided on the top of the feeding bracket 7. A passage for installing the discharge pipe 63 is provided on the horizontal section. The discharge pipe 63 is fixed in the through hole. The lower side of the discharge pipe 63 guides the steel slag mixture from the top opening into the paving drum 2. The discharge pipe 63 and the top opening of the paving drum 2 are clearance-matched, and the rotation of the paving drum 2 will not be affected by the interference of the discharge pipe 63.

[0047] The steel slag asphalt concrete road paving device and the construction method thereof are specifically as follows:

[0048] S1: Clean and level the roadbed;

[0049] S2: Use construction equipment to evenly lay and compact steel slag mixture on the road base to form a steel slag mixture base. The steel slag mixture is made by mixing coarse and fine aggregates and mineral powder. The asphalt is modified asphalt. The steel slag mixture is compacted and mixed with asphalt to form a steel slag asphalt mixture. The steel slag mixture is made by mixing coarse and fine aggregates and mineral powder;

[0050] S3: Spreading and compacting asphalt on the steel slag mixture to form an asphalt lower layer;

[0051] S4: Spreading and compacting asphalt on the asphalt lower layer to form an asphalt middle surface layer;

[0052] S5: Spreading and compacting asphalt on the asphalt middle surface layer to form an asphalt upper surface layer;

[0053] S6: Complete asphalt pavement paving and maintain the asphalt pavement.

Claims

1. A steel slag asphalt concrete road paving device and a construction method thereof, characterized in that: The invention comprises a frame (1), wherein a rotatable material spreading roller (2) is arranged on the frame (1), an annular limit frame (3) for mounting the material spreading roller (2) is arranged on the frame (1), a feeding mechanism (6) is arranged on the top of the material spreading roller (2), a top opening cooperating with the feeding mechanism (6) is arranged on the material spreading roller (2), a straight-line material spreading opening (22) is arranged on the bottom of the material spreading roller (2), and a movable front baffle plate (23) and a rear baffle plate (24) are arranged on the material spreading opening (22); an angle locking gear ring (21) is arranged on the outside of the material spreading roller (2), and an angle locking mechanism (5) cooperating with the angle locking gear ring (21) is fixed on the frame (1); a first vibration motor (28) is arranged at the bottom of the material spreading opening (22), and a second vibration motor (29) is arranged on both the front baffle plate (23) and the rear baffle plate (24).

2. The steel slag asphalt concrete road paving device and construction method thereof according to claim 1, characterized in that: The cross section of the annular limit frame (3) is L-shaped, the transverse section of the annular limit frame (3) is arranged inwardly, a lower annular ball groove (31) is arranged at the top of the transverse section of the annular limit frame (3), a plurality of balls (4) are arranged in the lower annular ball groove (31), and an upper annular ball groove cooperating with the balls (4) is arranged at the bottom of the material spreading roller (2).

3. The steel slag asphalt concrete road paving device and construction method thereof according to claim 2, characterized in that: The vertical section of the annular limit frame (3) is provided with a plurality of first threaded holes, each of which is provided with a limit screw (32), and the outside of the paving roller (2) is provided with a limit ring groove that cooperates with the limit screw (32).

4. The steel slag asphalt concrete road paving device and construction method thereof according to claim 2, characterized in that: Both sides of the material laying opening (22) are provided with mounting plates (25) for mounting a front material baffle plate (23) and a rear material baffle plate (24); mounting shafts (26) for mounting the front material baffle plate (23) and the rear material baffle plate (24) are provided on the two mounting plates (25); sleeves cooperating with the mounting shafts (26) are provided on the front material baffle plate (23) and the rear material baffle plate (24); and torsion springs (27) are provided between the front material baffle plate (23), the rear material baffle plate (24) and the mounting shafts (26).

5. The steel slag asphalt concrete road paving device and construction method thereof according to claim 1, characterized in that: The angle locking mechanism (5) comprises a vertical support block (51) and a radial adjustment screw (52) matched with the angle locking gear ring (21); the vertical support block (51) is provided with a radial threaded hole for mounting the radial adjustment screw (52).

6. The steel slag asphalt concrete road paving device and construction method thereof according to claim 1, characterized in that: The feeding mechanism (6) comprises a main feeding pipe (61), a feeding motor (64), a spiral blade and a conveying shaft, wherein the conveying shaft is connected to the output end of the feeding motor (64), the spiral blade is fixed on the conveying shaft, and the spiral blade and the conveying shaft are installed in the main feeding pipe (61); a feeding pipe (62) is arranged at the top of the main feeding pipe (61), and a discharging pipe (63) is arranged at the bottom of the main feeding pipe (61).

7. The steel slag asphalt concrete road paving device and construction method thereof according to claim 1, characterized in that: The outside of the material spreading roller (2) is provided with a plurality of angle scale convex strips (211), and the plurality of angle scale convex strips (211) correspond to the material spreading projection widths of the plurality of material spreading openings (22); the material spreading openings (22) are provided with a plurality of bottom partition plates (210), and the plurality of bottom partition plates (210) are equidistantly distributed.

8. The steel slag asphalt concrete road paving device and construction method thereof according to claim 1, characterized in that: The frame (1) comprises two rolling rollers (11), which are respectively arranged on the front and rear sides of the frame (1); the frame (1) is provided with a mounting rod (12) for mounting an annular limit frame (3); the outside of the material spreading roller (2) is provided with a mounting block (33) cooperating with the mounting rod (12); and the mounting block (33) is provided with a fixing bolt (34).

9. The steel slag asphalt concrete road paving device and construction method thereof according to claim 1, characterized in that: A traction hook (8) is arranged on the front side of the vehicle frame (1), and a feeding bracket (7) for installing a feeding mechanism (6) is arranged on the vehicle frame (1).

10. A construction method for the steel slag asphalt concrete road paving device according to any one of claims 1 to 9, comprising the following steps: S1: Clean and level the roadbed; S2: using a construction device to evenly lay and compact the steel slag mixture on the road base to form a steel slag mixture base; S3: Spreading and compacting asphalt on the steel slag mixture base to form an asphalt lower layer; S4: Spreading and compacting asphalt on the asphalt lower layer to form an asphalt middle surface layer; S5: Spreading and compacting asphalt on the asphalt middle surface layer to form an asphalt upper surface layer; S6: Complete asphalt pavement paving and maintain the asphalt pavement.

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