Separation device for preventing concentration of coarse aggregate part on water-stable paving surface

Abstract

The utility model belongs to the field of road bed construction, and particularly relates to a segregation device for preventing a coarse aggregate part on a water-stable paving surface from being concentrated, which comprises an arc-shaped aggregate cover, leaking holes are arranged on the periphery of the arc-shaped aggregate cover, a plurality of supporting short rods are fixedly connected with the left end and the right end of the arc-shaped aggregate cover, and the supporting short rods are fixed with a fixing cylinder. The fixed barrel is forwards connected with horizontal longitudinal rods, a horizontal cross rod is connected between the horizontal longitudinal rods on the two sides, the horizontal cross rod is downwards provided with a roller, the horizontal cross rod upwards fixes a vertical supporting rod, the vertical supporting rod backwards fixes a horizontal supporting rod, and the horizontal supporting rod and the upper end of an arc-shaped material collecting cover are fixed together; a spiral conveying roller is arranged in the arc-shaped material collecting cover and penetrates through the fixing cylinders on the two sides, and tires are fixed to the two ends of the spiral conveying roller. The device is convenient to use and low in manufacturing cost, engineering machinery can be carried, the device is pulled by the engineering machinery on a construction site to automatically shovel accumulated surface layer coarse aggregate, and compared with manual shoveling, the construction efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the road bed construction field especially relates to a kind of isolation devices for preventing water stable surface coarse aggregate partial concentration. BACKGROUND

[0002] During the cement stabilized soil paving process of road base construction, various factors can cause coarse aggregate in cement stabilized soil to gather on the surface, resulting in phenomena such as peeling, cracking and peeling of the surface of cement stabilized soil, which seriously affects the aesthetic and durability. Currently, the general method to deal with the problem of coarse aggregate concentration is to manually remove the surface coarse aggregate and then sieve it. This requires 2-3 people to be stationed behind the paving machine to eliminate the segregation of coarse and fine aggregates. Manual removal and processing is time-consuming and labor-intensive, and the construction efficiency is very low. SUMMARY

[0003] The present application aims to overcome the shortcomings of the background art and provide an isolation device for preventing water stable surface coarse aggregate partial concentration.

[0004] The present application is achieved by the following technical solutions:

[0005] An isolation device for preventing water stable surface coarse aggregate partial concentration, comprising an arc-shaped aggregate cover, the lower edge of the front end of the arc-shaped aggregate cover is integrally and uniformly provided with a shovel tooth along the length direction of the arc-shaped aggregate cover, and the arc-shaped aggregate cover is provided with a plurality of holes. The diameter of the holes is greater than the particle size of fine aggregate and smaller than the particle size of coarse aggregate. The left and right ends of the arc-shaped aggregate cover are fixedly connected to a plurality of support short rods, which are fixed together with the outer surface of a fixed cylinder. A horizontal longitudinal rod is fixedly connected to the front of the fixed cylinder, and a horizontal transverse rod is fixedly connected between the two horizontal longitudinal rods. A roller is installed in the middle of the horizontal transverse rod downward, and a vertical support rod is fixedly connected to the middle of the horizontal transverse rod upward. The horizontal support rod is fixed to the vertical support rod rearward, and the rear end of the horizontal support rod is fixed together with the upper end of the arc-shaped aggregate cover. A spiral conveying roller is provided in the arc-shaped aggregate cover, and the two ends of the spiral conveying roller pass through the two fixed cylinders respectively. Tires are symmetrically fixed to the two ends of the spiral conveying roller. The bottom end of the tire is on the same horizontal plane as the bottom end of the roller, and the bottom end of the tire is higher than the bottom end of the arc-shaped aggregate cover. A horizontal connecting rod is fixedly connected to the upper end of the vertical support rod forward.

[0006] Preferably, the vertical support rod comprises a vertical fixed rod and a vertical adjusting rod that are sleeved together. The vertical adjusting rod can slide up and down in the vertical fixed rod. Adjusting holes are provided on the vertical fixed rod and the vertical adjusting rod respectively. The vertical fixed rod and the vertical adjusting rod are fixed together by bolts passing through the adjusting holes.

[0007] Preferably, the tire center is integrally provided with a sleeve outward, the sleeve is sleeved on both ends of the spiral conveying roller, a through hole A is arranged on the sleeve, a through hole B is arranged on both ends of the spiral conveying roller, and the tire and the spiral conveying roller are fixed together through bolts penetrating through the through hole A and the through hole B.

[0008] Preferably, the chisel tooth is a rectangle or a triangle.

[0009] Preferably, the arc-shaped aggregate cover is a semicircular steel plate.

[0010] Preferably, the chisel tooth spacing is 3-4 cm.

[0011] Preferably, the diameter of the leakage hole is 4.75 mm.

[0012] Preferably, the front end of the horizontal connecting rod is provided with a plurality of connecting holes.

[0013] The device is convenient to use, low in manufacturing cost, and can be carried on an engineering machine. The engineering machine on the construction site can pull the device to automatically shovel the gathered surface layer coarse aggregate. Compared with manual shoveling, the construction efficiency is greatly improved, time and labor are saved. The device can automatically output coarse aggregate from one end, which is convenient for workers to collect coarse aggregate for re-mixing of mixed materials. Fine aggregate can fall from the leakage hole of the arc-shaped aggregate cover, and coarse and fine aggregates are automatically screened. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the overall structure of the device from the front of the embodiment;

[0015] Figure 2 It is a schematic view of the overall structure of the device from the side of the embodiment;

[0016] Figure 3 It is a schematic view of the arc-shaped aggregate cover structure of the embodiment;

[0017] Figure 4 It is a schematic view of the spiral conveying roller structure of the embodiment;

[0018] Figure 5 It is an enlarged schematic view of the sleeve connection of the embodiment.

[0019] In the figure, 1 is an arc-shaped aggregate cover, 2 is a chisel tooth, 3 is a leakage hole, 4 is a supporting short rod, 5 is a fixed cylinder, 6 is a horizontal longitudinal rod, 7 is a horizontal transverse rod, 8 is a roller, 9 is a vertical supporting rod, 10 is a horizontal supporting rod, 11 is a spiral conveying roller, 12 is a tire, 13 is a horizontal connecting rod, 14 is a vertical fixing rod, 15 is a vertical adjusting rod, 16 is an adjusting hole, 17 is a sleeve, 18 is a through hole A, 19 is a through hole B, and 20 is a connecting hole. DETAILED DESCRIPTION

[0020] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application.

[0021] The embodiment includes an arc-shaped aggregate cover 1 for removing coarse aggregate on the surface, preferably the arc-shaped aggregate cover 1 is semicircular and made of a semicircular steel plate. A plurality of shovel teeth 2 are integrally and uniformly arranged on the lower edge of the front end of the arc-shaped aggregate cover 1 along the length direction of the arc-shaped aggregate cover 1, preferably the interval of the shovel teeth 2 is 3-4 cm, the shovel teeth 2 are square or triangular, and the shovel teeth 2 are used for shoveling coarse aggregate concentrated on the surface layer of the road. A plurality of leakage holes 3 are arranged on the circumference of the arc-shaped aggregate cover 1, the leakage holes 3 are used for allowing fine aggregate to fall out of the arc-shaped aggregate cover 1 and allowing coarse aggregate to remain in the arc-shaped aggregate cover 1, therefore the diameter of the leakage hole 3 is greater than the particle diameter of the fine aggregate and smaller than the particle diameter of the coarse aggregate, at present, the dividing point of the coarse aggregate and the fine aggregate is generally 4.75 mm, therefore the diameter of the leakage hole 3 is set to 4.75 mm in the embodiment.

[0022] A plurality of support short rods 4 are fixedly connected to the left and right ends of the arc-shaped aggregate cover 1, and the other ends of the support short rods 4 are fixedly connected to the outer surface of a fixed cylinder 5. The fixed cylinder 5 is fixedly connected to a horizontal longitudinal rod 6 in front, and a horizontal transverse rod 7 is fixedly connected between the horizontal longitudinal rods 6 on the two sides. A roller 8 is installed in the middle of the horizontal transverse rod 7 downward, a vertical support rod 9 is fixedly connected to the middle of the horizontal transverse rod 7 upward, a horizontal support rod 10 is fixed to the vertical support rod 9 rearward, and the rear end of the horizontal support rod 10 is fixedly connected to the upper end of the arc-shaped aggregate cover 1. A horizontal connecting rod 13 is fixedly connected to the upper end of the vertical support rod 9 forward, and the horizontal connecting rod 13 is used for carrying engineering machinery, such as a paver or other walking mechanical equipment. The horizontal connecting rod 13 is connected to the engineering machinery through the horizontal connecting rod 13, and the whole device is dragged forward by the engineering machinery. A plurality of connecting holes 20 can be arranged on the front end of the horizontal connecting rod 13, the horizontal connecting rod 13 can be connected to the engineering machinery through bolts passing through the connecting holes 20, or the horizontal connecting rod 13 can be connected to the engineering machinery through ropes or hooks passing through the connecting holes 20. In order to conveniently carry engineering machinery with different heights, preferably, the height of the vertical support rod 9 can be adjusted, specifically, the vertical support rod 9 includes a vertical fixed rod 14 and a vertical adjusting rod 15 which are sleeved together, the vertical adjusting rod 15 can slide up and down in the vertical fixed rod 14, and corresponding adjusting holes 16 are arranged on the vertical fixed rod 14 and the vertical adjusting rod 15, respectively, and the vertical fixed rod 14 and the vertical adjusting rod 15 are fixedly connected through bolts passing through the adjusting holes 16.

[0023] A spiral conveying roller 11 is arranged in the arc-shaped aggregate cover 1, the spiral conveying roller 11 is located at the middle position of the arc-shaped aggregate cover 1, the spiral conveying roller 11 passes through the two fixed cylinders 5 at two ends respectively, and the spiral conveying roller 11 can rotate in the fixed cylinder 5. The tires 12 are symmetrically fixed at the two ends of the spiral conveying roller 11, the bottom end of the tire 12 is on the same horizontal plane as the bottom end of the roller 8, and the bottom end of the tire 12 is slightly higher than the bottom end of the arc-shaped aggregate cover 1. The teeth at the bottom end of the arc-shaped aggregate cover 1 are inserted into the road surface layer paving material, and the insertion depth can be designed according to the situation. The tire 12 is pulled to rotate by the engineering machinery, thereby driving the spiral conveying roller 11 to rotate. Preferably, the tire 12 and the spiral conveying roller 11 are in a detachable fixed structure, specifically, a sleeve 17 is integrally arranged outward at the center position of the tire 12, the sleeves 17 of the two tires 12 are respectively sleeved at the two ends of the spiral conveying roller 11, through holes A 18 are arranged on the sleeves 17 at the two ends, and through holes B 19 corresponding to the through holes A 18 are arranged at the two ends of the spiral conveying roller 11. The tire 12 and the spiral conveying roller 11 are fixed together through bolts passing through the through holes A 18 and the through holes B 19.

[0024] During construction, the device is connected with the engineering machinery through the horizontal connecting rod 13 in front, then the engineering machinery walks forward to pull the device to move forward, the tire 12 rotates to drive the spiral conveying roller 11 to rotate, when the device moves forward, the lower teeth 2 shovel the coarse aggregate and fine aggregate on the road surface, the coarse aggregate and fine aggregate enter the arc-shaped aggregate cover 1, when the spiral conveying roller 11 rotates, the fine aggregate falls from the leakage hole 3 to the road surface again, and the coarse aggregate is conveyed to the other end of the arc-shaped aggregate cover 1 and falls out from the other end, realizing the shovel removal of the coarse aggregate. Workers can use the concentrated coarse aggregate falling on one side again to mix the mixture and re-pave on the road surface.

[0025] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; those skilled in the art should understand that: the technical solutions recorded in the above examples can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An apparatus for preventing segregation of coarse aggregate in water stable pavement surfaces, characterized by: The utility model relates to an arc aggregate cover (1) is provided with a plurality of spurs (2) on the lower edge of the front end along the length direction of the arc aggregate cover (1), and the arc aggregate cover (1) is provided with a plurality of leakage holes (3) with a diameter larger than that of fine aggregate and smaller than that of coarse aggregate.

2. An apparatus for preventing segregation of coarse aggregate portions of a water stable pavement surface according to claim 1, wherein: The vertical supporting rod (9) comprises a vertical fixing rod (14) and a vertical adjusting rod (15) sleeved together, the vertical adjusting rod (15) can slide up and down in the vertical fixing rod (14), and corresponding adjusting holes (16) are arranged on the vertical fixing rod (14) and the vertical adjusting rod (15) respectively.

3. An apparatus for preventing segregation of coarse aggregate portions of a water stable mat surface according to claim 1, wherein: The tire (12) is provided with a sleeve (17) on the center and outwardly, the sleeve (17) is sleeved on the two ends of the spiral conveying roller (11), a through hole A (18) is arranged on the sleeve (17), and a through hole B (19) is arranged on the two ends of the spiral conveying roller (11) correspondingly.

4. The apparatus for preventing segregation of coarse aggregate portions of a water stable mat surface of claim 1, wherein: The spurs (2) are in a rectangular or triangular shape.

5. The apparatus for preventing segregation of coarse aggregate portions of a water stable mat surface of claim 1, wherein: The arc aggregate cover (1) is a semicircular steel plate.

6. The apparatus for preventing segregation of coarse aggregate portions of a water stable mat surface of claim 1, wherein: The distance between the spurs (2) is 3-4 cm.

7. The apparatus for preventing segregation of coarse aggregate portions of a water stable mat surface of claim 1, wherein: The diameter of the leakage holes (3) is 4.75 mm.

8. The apparatus for preventing segregation of coarse aggregate portions of a water stable mat surface of claim 1, wherein: A plurality of connecting holes (20) are arranged on the front end of the horizontal connecting rod (13).

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