CN111996889A - Device and method for repairing cracking of pavement in cold area by using polyurethane concrete - Google Patents

Abstract

The invention discloses a device and a method for repairing cold-region pavement cracks by utilizing polyurethane concrete, and the device comprises a supporting frame, an inflation air pressure pump, a driving motor, a heating device and an electric blanking valve, wherein the left end and the right end below the supporting frame are both rotatably connected with walking wheels, the inner side of an outer-layer heat-insulating shell is fixedly connected with a stirring barrel through bolts, an opening at the upper side of the stirring barrel is welded with a hopper, the lower side wall of the stirring barrel is provided with the heating device through bolts, the lower side of the electric blanking valve is fixedly connected with a blanking pipe through bolts, an opening at the left side of a fixed pipe is fixedly connected with an injection bent pipe, and an air outlet of the inflation air pressure pump is provided with an air. This utilize device of polyurethane concrete restoration cold district road surface fracture is convenient for clear up impurity and dust in the crack, has improved the reliability after the concrete is filled, and the practicality has been improved to the polyurethane concrete's of being convenient for injection in addition and has been filled.

Description

Device and method for repairing cracking of pavement in cold area by using polyurethane concrete

technical field

The invention relates to the related technical field of pavement crack repair in cold regions, in particular to a device and method for repairing pavement cracks in cold regions by using polyurethane concrete.

Background technique

Polyurethane concrete has excellent chemical corrosion resistance, heavy impact resistance and thermal shock resistance, etc. It is suitable for harsh environments with various special performance requirements. Therefore, polyurethane concrete is often used when repairing road cracks in cold regions.

However, when repairing cracked pavements, it is inconvenient to clean up impurities and dust in the cracks, which reduces the reliability of concrete filling. In addition, it is inconvenient for the injection and filling of polyurethane concrete, which reduces the practicability. Therefore, we provide a method using polyurethane A device for repairing cracked pavement in cold areas with concrete to solve the problems mentioned above.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a device and method for repairing cracking of pavement in cold regions by using polyurethane concrete, so as to solve the problem of inconvenient cleaning of impurities and dust in the cracks proposed in the above-mentioned background technology, and reduce the reliability after concrete filling, In addition, it is inconvenient to inject and fill the polyurethane concrete, which reduces the problem of practicality.

In order to achieve the above purpose, the present invention provides the following technical solutions: a device for repairing cracks in cold areas by using polyurethane concrete, comprising a support frame, an inflatable air pump, a drive motor, a heating device and an electric blanking valve. The left and right ends of the support frame are rotatably connected with walking wheels, and the right end below the support frame is installed with an inflatable air pump, the front and rear side walls of the middle part of the support frame are fixedly connected with auxiliary rods, and the upper end of the auxiliary rod is insulated from the outer layer. The outer side of the shell is connected in a penetrating manner, the inner side of the outer insulation shell is fixedly connected with a mixing drum by bolts, and the outer surface of the upper side wall of the mixing drum is fixedly connected with the output end of the electric telescopic rod, and the electric telescopic rod passes through. The bolt is installed on the side wall of the upper end of the support frame, the opening on the upper side of the mixing drum is welded with a hopper, and the middle part above the mixing drum is installed with a driving motor through the bolt, and the output end of the driving motor is fixedly connected with a stirring rod , the inner side of the outer insulation shell is provided with a heating ring, a heating device is installed on the lower side wall of the mixing drum through bolts, and an electric feeding valve is installed at the opening on the lower side of the mixing drum, and the electric feeding The lower side of the valve is fixedly connected with a feeding pipe by bolts, and the lower side of the feeding pipe is welded with the opening of the fixed pipe. The opening on the left side of the fixed pipe is fixedly connected with a feeding elbow, and the right side of the fixed pipe is A pneumatic telescopic rod is installed on the side through bolts, an output end of the pneumatic telescopic rod is fixedly connected with a movable column, and a jet pipe is installed at the air outlet of the inflatable air pump.

Preferably, the electric telescopic rod is symmetrically arranged with respect to the vertical center axis of the mixing drum, and the mixing drum forms a lifting structure on the side wall of the support frame.

Preferably, the heating rings are installed on the outer side wall of the mixing drum at equal intervals, and the lower side wall of the mixing drum has a funnel-shaped structure.

Preferably, the fixing pipe is inclined on the feeding pipe, and the right side wall of the fixing pipe is connected with the pneumatic telescopic rod in a penetrating manner.

Preferably, the movable column and the inner side wall of the fixed pipe are arranged in a fit manner, and the length of the movable column is larger than the width of the opening of the feeding pipe.

Preferably, the horizontal central axis of the air injection pipe coincides with the horizontal central axis of the material injection elbow, and the air injection pipe is mounted on the lower side of the right end of the fixed pipe by means of bolts.

Compared with the prior art, the beneficial effects of the present invention are: the device for repairing cracks in cold areas by using polyurethane concrete is convenient for cleaning impurities and dust in the cracks, improves the reliability of concrete filling, and is convenient for polyurethane concrete. The injection filling improves the practicability;

1. There is a heating ring. The outer side of the middle of the mixing drum is installed with heating rings at equal intervals, and the heating device is started to work. During the stirring process of the stirring rod, the setting of the heating ring is convenient for heating in cold areas. Facilitate the mixing of polyurethane concrete;

2. There is a fixed pipe, the fixed pipe is inclined on the unloading pipe, start the operation of the pneumatic telescopic rod, so that the movable column slides on the inner side of the fixed pipe, and the setting of the injection elbow is convenient for the injection and filling of polyurethane concrete. improved usability;

3. Equipped with a jet pipe, the horizontal central axis of the jet pipe coincides with the horizontal central axis of the injection elbow, start the operation of the inflatable air pump, and spray the air flow on the cracks of the road through the jet pipe, which is convenient for impurities in the cracks. And dust is cleaned, which improves the reliability of concrete after filling.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is a side view structural schematic diagram of the present invention;

Fig. 3 is the front view sectional structure schematic diagram of the connection between the outer layer insulation shell and the mixing drum of the present invention;

FIG. 4 is a schematic diagram of the front cross-sectional structure of the connection between the feeding pipe and the fixing pipe of the present invention.

In the figure: 1. Supporting frame; 2. Walking wheel; 3. Inflatable air pump; 4. Auxiliary rod; 5. Outer insulation shell; 6. Mixing drum; 7. Electric telescopic rod; 8. Hopper; 9. Drive Motor; 10, stirring rod; 11, heating ring; 12, heating device; 13, electric feeding valve; 14, feeding pipe; 15, fixed pipe; 16, feeding elbow; 17, pneumatic telescopic rod; 18, Activity column; 19, jet pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-4, the present invention provides a technical solution: a device for repairing road cracks in cold regions by using polyurethane concrete, including a support frame 1, a walking wheel 2, an inflatable air pump 3, an auxiliary rod 4, and an outer layer of thermal insulation Shell 5, mixing drum 6, electric telescopic rod 7, hopper 8, drive motor 9, stirring rod 10, heating ring 11, heating device 12, electric feeding valve 13, feeding pipe 14, fixed pipe 15, feeding elbow 16. The pneumatic telescopic rod 17, the movable column 18 and the jet pipe 19, the left and right ends of the support frame 1 are rotatably connected to the walking wheels 2, and the right end below the support frame 1 is installed with an inflatable air pump 3, and the middle of the support frame 1 Auxiliary rods 4 are fixedly connected to the front and rear side walls of the outer layer, and the upper ends of the auxiliary rods 4 are connected with the outer side of the outer insulation shell 5 in a penetrating manner, and the inner side of the outer insulation shell 5 is fixedly connected with a stirring drum 6 by bolts. And the outer surface of the upper side wall of the mixing drum 6 is fixedly connected with the output end of the electric telescopic rod 7, and the electric telescopic rod 7 is installed on the side wall of the upper end of the support frame 1 through bolts, and the opening on the upper side of the mixing drum 6 is welded with a hopper. 8, and the middle part above the mixing drum 6 is provided with a driving motor 9 through bolts, the output end of the driving motor 9 is fixedly connected with a stirring rod 10, the inner side of the outer insulation shell 5 is provided with a heating ring 11, and the lower side of the mixing drum 6 is provided with a heating ring 11. A heating device 12 is installed on the wall through bolts, and an electric feeding valve 13 is installed at the opening on the lower side of the mixing drum 6. The lower side of the electric feeding valve 13 is fixedly connected with a feeding pipe 14 through bolts, and the feeding pipe 14 The lower side of the fixed pipe 15 is welded with the opening of the fixed pipe 15, the opening on the left side of the fixed pipe 15 is fixedly connected with a material injection elbow 16, and the right side of the fixed pipe 15 is installed with a pneumatic telescopic rod 17 through bolts. A movable column 18 is fixedly connected to the output end, and a jet pipe 19 is installed at the air outlet of the air-filled air pump 3 .

As shown in FIG. 1 and FIG. 2 , the electric telescopic rod 7 is symmetrically arranged about the vertical center axis of the mixing drum 6, and the mixing drum 6 forms a lifting structure on the side wall of the support frame 1, and the fixed pipe 15 is inclined on the feeding pipe 14. And the right side wall of the fixed pipe 15 is connected with the pneumatic telescopic rod 17 in a penetrating manner, the movable column 18 and the inner side wall of the fixed pipe 15 are arranged in a fit, and the length of the movable column 18 is larger than that at the opening of the feeding pipe 14. The width dimension is convenient for the injection and filling of polyurethane concrete, which improves the practicality.

As shown in Figures 1 and 3, the heating rings 11 are installed on the outer side wall of the mixing drum 6 at equal intervals, and the lower side wall of the mixing drum 6 has a funnel-shaped structure. The setting of the heating rings 11 facilitates heating during construction in cold regions Handling and easy mixing of polyurethane concrete.

As shown in Figures 1 and 4, the horizontal central axis of the air injection pipe 19 coincides with the horizontal central axis of the injection elbow 16, and the air injection pipe 19 is installed on the lower side of the right end of the fixed pipe 15 by bolts, and the air flow is injected through the air injection pipe 19. In the cracked pavement, it is convenient to clean the impurities and dust in the cracks, which improves the reliability of concrete filling.

A repairing method of a device for repairing cracking of pavement in cold regions using polyurethane concrete: when using the device for repairing cracking pavement in cold regions using polyurethane concrete, as shown in FIG. Inside, start the driving motor 9 to work, and stir and mix the polyurethane concrete raw materials through the stirring rod 10. During the mixing process, in order to prevent the temperature from being too low to affect the uniform mixing of the polyurethane concrete, the heating device 12 is started to work, and the outer layer is insulated. The inner side of the shell 5 is provided with a heating ring 11, and the mixing drum 6 is heated through the heating ring 11. As shown in Figures 1 and 2, the outer side of the outer layer of the thermal insulation shell 5 is connected with the auxiliary rod 4 in a penetrating manner, Start the operation of the electric telescopic rod 7, so that the mixing drum 6 drives the fixed pipe 15 to move down on the side wall of the support frame 1, and makes the injection pipe 16 align with the cracked part of the road surface. When repairing, according to Figure 1 As shown in FIG. 4 , the pneumatic telescopic rod 17 and the jet pipe 19 are connected to the inflatable air pump 3 through a hose, and the support frame 1 is pulled to the right to move through the walking wheel 2 to start the inflatable air pump 3 to operate. The debris and dust in the cracks are blown out through the jet pipe 19. After the electric feeding valve 13 is opened, the stirred polyurethane concrete slides into the interior of the fixed pipe 15 through the feeding pipe 14, and the pneumatic telescopic rod 17 is started to operate to make the movable column work. 18 Slide the inner side of the fixed pipe 15, push the polyurethane concrete, and inject the polyurethane concrete into the crack through the injection elbow 16 to complete the filling.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides an utilize polyurethane concrete to restore device of cold district road surface fracture, includes braced frame (1), aerifys air-compression pump (3), driving motor (9), heating device (12) and electronic unloading valve (13), its characterized in that: the left end and the right end below the supporting frame (1) are respectively and rotatably connected with a travelling wheel (2), the right end below the supporting frame (1) is provided with an inflatable air pressure pump (3), the front side wall and the rear side wall of the middle part of the supporting frame (1) are respectively and fixedly connected with an auxiliary rod (4), the upper end of each auxiliary rod (4) is connected with the outer side of the outer heat-insulating shell (5) in a penetrating mode, the inner side of the outer heat-insulating shell (5) is fixedly connected with a stirring cylinder (6) through bolts, the outer surface of the upper side wall of the stirring cylinder (6) is fixedly connected with the output end of an electric telescopic rod (7), the electric telescopic rod (7) is arranged on the upper end of the supporting frame (1) through bolts, a hopper (8) is welded at the opening of the upper side of the stirring cylinder (6), and a driving, a stirring rod (10) is fixedly connected on the output end of the driving motor (9), a heating ring (11) is arranged on the inner side of the outer-layer heat-insulating shell (5), a heating device (12) is arranged on the lower side wall of the mixing drum (6) through a bolt, an electric blanking valve (13) is arranged at an opening at the lower side of the mixing drum (6), a blanking pipe (14) is fixedly connected at the lower side of the electric blanking valve (13) through a bolt, the lower side of the blanking pipe (14) is welded with the opening of the fixed pipe (15), the opening on the left side of the fixed pipe (15) is fixedly connected with a material injection bent pipe (16), and the right side of the fixed pipe (15) is provided with a pneumatic telescopic rod (17) through a bolt, the output end of the pneumatic telescopic rod (17) is fixedly connected with a movable column (18), and an air jet pipe (19) is arranged at an air outlet of the inflation air compression pump (3).

2. The device for repairing cold-region road surface cracks by using the polyurethane concrete as claimed in claim 1, wherein: the electric telescopic rods (7) are symmetrically arranged about the vertical middle axis of the mixing drum (6), and the mixing drum (6) forms a lifting structure on the side wall of the supporting frame (1).

3. The device for repairing cold-region road surface cracks by using the polyurethane concrete as claimed in claim 1, wherein: the heating rings (11) are installed on the outer side wall of the mixing drum (6) at equal intervals, and the lower side wall of the mixing drum (6) is of a funnel-shaped structure.

4. The device for repairing cold-region road surface cracks by using the polyurethane concrete as claimed in claim 1, wherein: the fixed pipe (15) is obliquely arranged on the discharging pipe (14), and the right side wall of the fixed pipe (15) is connected with the pneumatic telescopic rod (17) in a penetrating mode.

5. The device for repairing cold-region road surface cracks by using the polyurethane concrete as claimed in claim 1, wherein: the movable column (18) is attached to the inner side wall of the fixed pipe (15), and the length of the movable column (18) is larger than the width of the opening of the discharging pipe (14).

6. The device for repairing cold-region road surface cracks by using the polyurethane concrete as claimed in claim 1, wherein: the horizontal central axis of the gas injection pipe (19) coincides with the horizontal central axis of the material injection bent pipe (16), and the gas injection pipe (19) is installed on the lower side of the right end of the fixed pipe (15) through bolts.

7. The method for repairing the cold region pavement crack by using the polyurethane concrete as claimed in claim 1, wherein the method comprises the following steps: the specific method comprises the following steps: when the device for repairing cold-region pavement cracks by using polyurethane concrete is used, polyurethane concrete raw materials are poured into the inner side of a mixing drum (6) through a hopper (8), a driving motor (9) is started to operate, the polyurethane concrete raw materials are mixed and stirred through a mixing rod (10), in the mixing process, in order to prevent the temperature from being too low and influence the uniform mixing of the polyurethane concrete, a heating device (12) is started to operate, a heating ring (11) is arranged on the inner side of an outer-layer heat-insulating shell (5), the mixing drum (6) is heated through the heating ring (11), the outer side of the outer-layer heat-insulating shell (5) is connected with an auxiliary rod (4) in a penetrating manner, an electric telescopic rod (7) is started to operate, the mixing drum (6) drives a fixing pipe (15) to move downwards on the side wall of a supporting frame (1), and a material injection bent pipe (16) is aligned to the pavement crack part, when repairing, the pneumatic telescopic rod (17) and the air injection pipe (19) are connected with the inflatable air compression pump (3) through hoses, the supporting frame (1) is pulled rightwards, the walking wheels (2) move, the inflatable air compression pump (3) is started to operate, sundry dust in cracks is blown out through the air injection pipe (19), after the electric blanking valve (13) is opened, the stirred polyurethane concrete slides into the fixed pipe (15) through the blanking pipe (14), the pneumatic telescopic rod (17) is started to operate, the movable column (18) slides on the inner side of the fixed pipe (15), the polyurethane concrete is injected into the cracks through the injection bent pipe (16) to complete filling after the polyurethane concrete is pushed, and the whole process of using the device for repairing cold-region pavement cracks by utilizing the polyurethane concrete is realized.

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