Movable sanding device for asphalt pavement maintenance

Abstract

The movable sanding device comprises a sanding cylinder, a sand discharging opening is formed in the bottom of the sanding cylinder, positioning seats are welded and fixed to the two ends of the outer side of the sanding cylinder, fixing rods are arranged on the positioning seats in a threaded connection mode, and meanwhile the ends, away from the positioning seats, of the fixing rods are welded and fixed to stress rods. Handles are mounted on the two sides of the stress rod; and an auger is movably mounted in the sanding cylinder. According to the movable sanding device for asphalt pavement maintenance, the handle is held by a hand, the sanding cylinder is obliquely pushed, the sand discharging opening is formed above a ground crack, a starting switch at the bottom of the stress rod is pressed, the driving motor drives the auger to rotate, sand in the sanding cylinder is discharged from the sand discharging opening and falls into the ground crack, and the whole device is small and exquisite in shape and convenient to use. Ground cracks at different positions on the road surface can be conveniently and rapidly filled and repaired; and the filling and repairing efficiency of the ground crack zone is improved.

Description

Technical Field

[0001] The utility model relates to the field of asphalt pavement maintenance, in particular to a mobile sand spreading device for asphalt pavement maintenance. Background Art

[0002] After several years of normal use, asphalt pavement begins to age, lose fine aggregate, spread microcracks, and its water permeability is greatly improved. Water on the pavement will enter the asphalt mixture through cracks or fine aggregate damage (exposed areas), and the huge dynamic water pressure generated by vehicle impact further accelerates the damage to the pavement. During this period, the pavement is basically intact. If it is not treated in time during this period, it will cause pavement damage such as cracks, cracks, and potholes. There are many ways to deal with the above defects, such as micro-surfacing and thin overlay, each with its own advantages and disadvantages, but in summary, at this stage, the most effective method is "fog seal technology" or "FOGSEAL", and its cost is very low. After the fog seal, due to the high fluidity of the material used, it can penetrate into the aggregate joints and flow into the cracks, "transfusing" the pavement, thereby restoring the adhesion of the road surface asphalt, filling small cracks and gaps, preventing the infiltration of road surface water, and maintaining the pavement performance for 2 to 3 years, postponing more expensive maintenance projects, and improving the economic benefits of the road.

[0003] Regarding the patent for filling cracks in the road with sand, a Chinese patent with the authorization announcement number CN204898476U discloses a towed sand spreading device; the device comprises a hopper (1), a cylinder (2), a tire (3), a material plate 1 (4), a material plate 2 (5) and a hanging rod (6); wherein the upper part of the hopper (1) is fixed with a bolt to the hanging rod (6);

[0004] The distribution of cracks on the road surface is irregular, and the above-mentioned device is large in size and difficult to move, making it difficult to perform efficient sand filling and repair maintenance work on the scattered cracks. Utility Model Content

[0005] The purpose of the utility model is to provide a mobile sand spreading device for asphalt pavement maintenance to solve the defects mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, a mobile sand spreading device for asphalt pavement maintenance is provided, comprising a sand spreading cylinder, a sand discharge port is arranged at the bottom of the sand spreading cylinder, and fixed positioning seats are welded to both ends of the outer side of the sand spreading cylinder, and a fixing rod is screwed on the positioning seat, and at the same time, one end of the fixing rod away from the positioning seat is welded and fixed to a force-bearing rod, and handles are installed on both sides of the force-bearing rod;

[0007] An auger is movably installed inside the sand spreading cylinder, and the rotating shaft of the auger is movably arranged inside the sand spreading cylinder through a bearing and a limit plate, while the end of the limit plate is installed on the inner wall of the sand spreading cylinder, the top of the rotating shaft of the auger is fixedly connected to the driving rod, and the driving rod is fixed to the output shaft of the driving motor, and the driving motor is screwed and fixed to the surface of the mounting frame.

[0008] Preferably, a sand adding port is provided on the upper side of the surface of the sand spreading cylinder, and a sand adding frame is fixedly installed on the outer side of the sand adding port, and a sand adding opening is provided on the surface of the sand adding frame, and the bottom surface of the sand adding frame is inclined.

[0009] Preferably, the mounting frame is a "U"-shaped structure made of metal material, and both ends of the mounting frame are screwed and fixed to the inner wall of the fixing rod.

[0010] Preferably, fixed mounting seats are welded on both sides of the sand spreading cylinder, and fixed rods are inserted into the inside of the two sets of mounting seats. At the same time, the force-bearing rod is fixed to the sand spreading cylinder through the two sets of fixed rods, and a driving switch electrically connected to the driving motor is installed at the bottom of the force-bearing rod.

[0011] Preferably, the back side of the mounting frame is fixed to the support seat, and the driving motor on the mounting frame is powered by a power supply installed on the side wall of the sand spreading cylinder.

[0012] Preferably, running wheels are movably installed on both sides of the bottom of the sand spreading cylinder, and the bottom of the sand spreading cylinder is moved by two sets of running wheels. At the same time, the cross-section of the sand discharge port at the bottom of the sand spreading cylinder is triangular, and the bottom of the sand discharge port is suspended.

[0013] Compared with the prior art, the beneficial effects of the utility model are: holding the handle, the sand spreading barrel is tilted and pushed, and the sand discharge port is placed above the ground cracks, pressing the start switch at the bottom of the force-bearing rod, the driving motor drives the auger to rotate, and the sand inside the sand spreading barrel is discharged from the sand discharge port and falls into the ground cracks. The whole device is compact in shape, which is convenient for quickly filling and repairing ground cracks at different positions on the road surface; and the efficiency of filling and repairing ground crack belts is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0015] Figure 2 The utility model structure Figure 1 Appearance diagram;

[0016] Figure 3 The utility model structure Figure 1 Side view of

[0017] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of the sand-spreading cylinder.

[0018] Numbers in the figure: 1. force-bearing rod; 2. handle; 3. driving motor; 4. fixing rod; 5. mounting frame; 51. supporting seat; 6. sand spreading cylinder; 7. sand adding port; 71. sand adding frame; 8. driving rod; 9. limiting plate; 10. mounting seat; 11. auger; 12. positioning seat; 13. walking wheel; 14. sand discharge port. DETAILED DESCRIPTION

[0019] See also Figure 1-4 The utility model provides a mobile sand spreading device for asphalt pavement maintenance, including a sand spreading cylinder 6, a sand discharge port 14 is arranged at the bottom of the sand spreading cylinder 6, and both ends of the outer side of the sand spreading cylinder 6 are welded with fixed positioning seats 12, and a fixing rod 4 is screwed on the positioning seat 12, and at the same time, one end of the fixing rod 4 away from the positioning seat 12 is welded and fixed to a force-bearing rod 1, and handles 2 are installed on both sides of the force-bearing rod 1;

[0020] An auger 11 is movably installed inside the sand-spreading cylinder 6, and the rotating shaft of the auger 11 is movably arranged inside the sand-spreading cylinder 6 through a bearing and a limit plate 9. At the same time, the end of the limit plate 9 is installed on the inner wall of the sand-spreading cylinder 6. The top of the rotating shaft of the auger 11 is fixedly connected to the driving rod 8, and the driving rod 8 is fixed to the output shaft of the driving motor 3. At the same time, the driving motor 3 is screwed and fixed to the surface of the mounting frame 5.

[0021] Working principle: When in use, hold the handle 2, push the sand-spreading cylinder 6 at an angle, and place the sand-discharging port 14 above the ground cracks, press the start switch at the bottom of the force-bearing rod 1, and the driving motor 3 drives the auger 11 to rotate. The sand inside the sand-spreading cylinder 6 is discharged from the sand-discharging port 14 and falls into the ground cracks. The whole device is compact in shape, which is convenient for quickly filling and repairing ground cracks at different positions on the road surface; and improves the efficiency of filling and repairing ground cracks.

[0022] As a preferred embodiment, a sand adding port 7 is opened on the upper surface of the sand spreading tube 6, and a sand adding frame 71 is fixedly installed on the outer side of the sand adding port 7. At the same time, a sand adding opening is opened on the surface of the sand adding frame 71, and the bottom surface of the sand adding frame 71 is inclined.

[0023] like Figure 1-4 As shown, the mounting frame 5 is a "U"-shaped structure made of metal material, and both ends of the mounting frame 5 are screwed and fixed on the inner wall of the fixing rod 4.

[0024] The bottom surface of the sand adding frame 71 is inclined, and the sand enters the sand adding frame 71 from the sand adding opening, and enters the sand spreading cylinder 6 from the sand adding port 7, thereby completing the sand adding work to the sand spreading cylinder 6.

[0025] As a preferred embodiment, fixed mounting seats 10 are welded on both sides of the sand-spreading cylinder 6, and fixed rods 4 are inserted into the two sets of mounting seats 10. At the same time, the force-bearing rod 1 is fixed to the sand-spreading cylinder 6 through the two sets of fixed rods 4, and a driving switch electrically connected to the driving motor 3 is installed at the bottom of the force-bearing rod 1.

[0026] The back side of the mounting frame 5 is fixed to the support seat 51 , and the driving motor 3 on the mounting frame 5 is powered by a power source installed on the side wall of the sand spreading cylinder 6 .

[0027] The driving switch is arranged at the bottom of the force bearing rod 1, so that when the sand spreading tube 6 is pushed, the driving switch can be operated quickly, so as to start and close the driving motor 3.

[0028] As a preferred embodiment, running wheels 13 are movably installed on both sides of the bottom of the sand spreading cylinder 6, and the bottom of the sand spreading cylinder 6 is moved by two sets of running wheels 13. At the same time, the cross-section of the sand discharge port 14 at the bottom of the sand spreading cylinder 6 is triangular, and the bottom of the sand discharge port 14 is suspended.

[0029] Both sides of the bottom of the sand-spreading cylinder 6 are movably equipped with running wheels 13. The two sets of running wheels 13 are arranged to facilitate the movement of the device, which saves time and effort.

[0030] When the device is idle, the device is held and placed, with one end of the device supported by the running wheel 13 and the other end supported by the support base 51 .

Claims

1. A mobile sand spreading device for asphalt pavement maintenance, comprising a sand spreading cylinder (6), characterized in that: A sand discharge port (14) is provided at the bottom of the sand spreading cylinder (6), and fixed positioning seats (12) are welded to both ends of the outer side of the sand spreading cylinder (6), and a fixing rod (4) is screwed on the positioning seat (12), and at the same time, one end of the fixing rod (4) away from the positioning seat (12) is welded and fixed to the force bearing rod (1), and handles (2) are installed on both sides of the force bearing rod (1); An auger (11) is movably installed inside the sand-spreading cylinder (6), and the rotating shaft of the auger (11) is movably arranged inside the sand-spreading cylinder (6) through a bearing and a limit plate (9), and the end of the limit plate (9) is installed on the inner wall of the sand-spreading cylinder (6), the top of the rotating shaft of the auger (11) is fixedly connected to the driving rod (8), and the driving rod (8) is fixed to the output shaft of the driving motor (3), and the driving motor (3) is screwed and fixed to the surface of the mounting frame (5).

2. The mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that: A sand adding port (7) is provided on the upper surface of the sand spreading cylinder (6), and a sand adding frame (71) is fixedly installed on the outer side of the sand adding port (7). Meanwhile, a sand adding opening is provided on the surface of the sand adding frame (71), and the bottom surface of the sand adding frame (71) is inclined.

3. The mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that: The mounting frame (5) is a "U"-shaped structure made of metal material, and both ends of the mounting frame (5) are screwed and fixed on the inner wall of the fixing rod (4).

4. The mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that: Fixed mounting seats (10) are welded on both sides of the sand-spreading cylinder (6), and fixed rods (4) are inserted into the interiors of the two sets of mounting seats (10). At the same time, the force-bearing rod (1) is fixed to the sand-spreading cylinder (6) through the two sets of fixed rods (4), and a driving switch electrically connected to the driving motor (3) is installed at the bottom of the force-bearing rod (1).

5. The mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that: The back side of the mounting frame (5) is fixed to the support seat (51), and the driving motor (3) on the mounting frame (5) is powered by a power source installed on the side wall of the sand spreading cylinder (6).

6. The mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that: Both sides of the bottom of the sand spreading cylinder (6) are movably provided with running wheels (13), and the bottom of the sand spreading cylinder (6) is moved by the two sets of running wheels (13). Meanwhile, the cross section of the sand discharge port (14) at the bottom of the sand spreading cylinder (6) is triangular, and the bottom of the sand discharge port (14) is suspended.

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