Pavement crack repairing device for road maintenance

Abstract

The utility model provides a road surface crack repairing device for road maintenance, which comprises a movable bottom plate and a material mixing cylinder, the material mixing cylinder is arranged on the movable bottom plate, one end of the movable bottom plate is provided with a material discharging cover, the top of the material discharging cover is provided with an inlet, the surface of the material mixing cylinder is provided with an outlet, and the outlet is communicated with the material discharging cover. A heating mechanism is arranged on the surface of the mixing barrel. The heating mechanism is arranged on the mixing barrel on the movable bottom plate, the problem that the flowability of asphalt is reduced in the cold environment is effectively solved, the heating mechanism comprises the protective shell, the electric heating pipe and the heat insulation pad, the asphalt in the mixing barrel can be kept at a certain temperature through the design of the heating mechanism, and the asphalt can be effectively heated. By arranging the stirring mechanism, asphalt in the mixing barrel can be uniformly heated, so that the overall flowability of the asphalt is ensured, the asphalt can be conveniently discharged through the discharging cover, rapid repair of cracks is realized, the road maintenance efficiency is improved, and the asphalt mixing device has better superiority especially in cold regions.

Description

Technical Field

[0001] The utility model relates to the technical field of highway maintenance, in particular to a road surface crack repairing device for highway maintenance. Background Art

[0002] After a long period of use, cracks will appear on the road due to various effects. When a car is driving on the road, it will generate force. The cracks will continue to grow under the force, accelerating the damage to the road surface. In order to increase the service life of the road, the cracks on the road must be repaired in time;

[0003] Announcement No. "CN215800887U" discloses a road surface crack repair device for highway maintenance, including a movable bottom plate, a baffle fixedly installed on one side of the top of the movable bottom plate, a mounting plate fixedly installed on the top of the baffle, the mounting plate fixedly connected to the movable bottom plate through a support plate, a transmission motor fixedly installed on the top of the mounting plate, and a half gear fixedly installed on the output end of the transmission motor. The device prevents asphalt from splashing through a discharge cover, and can also perform preliminary scraping to prevent accumulation. The pressing roller finally rolls and presses to make the asphalt surface smoother and eliminate the traces of the connection;

[0004] However, the above solution still has the following defects:

[0005] Asphalt is stored inside the mixing drum, but there is no heating structure for the mixing drum on the movable bottom plate. Therefore, the temperature of the asphalt will decrease after a long period of use. Especially in cold areas or cold environments, the fluidity of the asphalt will be reduced due to the low temperature, making it inconvenient to discharge through the discharge hood, which makes it difficult to repair the cracks. Utility Model Content

[0006] The purpose of the utility model is to provide a road surface crack repairing device for highway maintenance to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A road surface crack repairing device for highway maintenance comprises a movable bottom plate and a mixing drum, wherein the mixing drum is arranged on the movable bottom plate, a discharge cover is installed at one end of the movable bottom plate, an inlet is arranged at the top of the discharge cover, an outlet is arranged on the surface of the mixing drum, a heating mechanism is arranged on the surface of the mixing drum, and a stirring mechanism is arranged inside the mixing drum;

[0009] The heating mechanism includes a protective shell, an electric heating tube and an insulating pad. The insulating pad is bonded to the inner wall of the protective shell. Two protective shells are provided. The electric heating tube is vertically fixed between the two protective shells. The two protective shells are respectively fixed at both ends of the mixing barrel. The outlet passes through the surface of one of the protective shells and the insulating pad.

[0010] Preferably, the stirring mechanism includes a dual-axis motor, a bracket, a driving shaft and a stirring plate, the dual-axis motor is fixed on a movable bottom plate, a plurality of stirring plates are vertically fixed to the surface of the bracket, the driving shaft is fixedly arranged at the center of the bracket, and one end of the driving shaft rotates inside the mixing barrel and passes through the mixing barrel to be connected to the output end of the dual-axis motor.

[0011] Preferably, a surface of each stirring plate is provided with a receiving cavity, and the receiving cavity is connected to the inner cavity of the mixing cylinder.

[0012] Preferably, the inner wall of the accommodating cavity is provided with a flexible mechanism, the flexible mechanism comprises a rotating shaft and flexible blades, the flexible blades are fixed to the surface of the rotating shaft, and the rotating shaft is rotatably arranged on the inner wall of the accommodating cavity through a driving mechanism.

[0013] Preferably, the driving mechanism includes a ring gear and a gear, the ring gear is fixedly arranged on the inner wall of the accommodating cavity, one end of the rotating shaft passes through the bracket and extends to the other side of the bracket, the gear is fixed to the surface of the rotating shaft, and the gear is meshed with the ring gear.

[0014] Preferably, the plurality of accommodating cavities and the rotating shaft are symmetrical about the midpoint of the bracket.

[0015] Preferably, transmission pumps are installed on both sides of the movable bottom plate, and the input end and output end of the transmission pump are connected to the outlet and the inlet respectively through hoses.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model effectively solves the problem of reduced fluidity of asphalt in cold environment by arranging a heating mechanism on the mixing barrel on the movable bottom plate, wherein the heating mechanism comprises a protective shell, an electric heating pipe and a heat insulating pad. The design of the heating mechanism enables the asphalt inside the mixing barrel to maintain a certain temperature, and the setting of the stirring mechanism enables the asphalt in the mixing barrel to be evenly heated, thereby ensuring the overall fluidity of the asphalt, facilitating discharge through a discharge cover, realizing rapid repair of cracks, and improving road maintenance efficiency, which is particularly advantageous in cold areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0019] Figure 2This is a schematic diagram of the connection structure between the protective cover and the mixing barrel of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the stirring plate and the bracket of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure between the rotating shaft and the accommodating cavity of the utility model.

[0022] In the figure: 1. movable bottom plate; 2. mixing barrel; 3. discharge cover; 4. inlet; 5. outlet; 6. protective shell; 7. electric heating tube; 8. insulation pad; 9. double-axis motor; 10. bracket; 11. drive shaft; 12. stirring plate; 13. accommodating chamber; 14. rotating shaft; 15. flexible blades; 16. gear ring; 17. gear; 18. transmission pump. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] Embodiment 1

[0026] A road surface crack repairing device for highway maintenance comprises a movable bottom plate 1 and a mixing drum 2, wherein the mixing drum 2 is arranged on the movable bottom plate 1, a discharge cover 3 is installed at one end of the movable bottom plate 1, an inlet 4 is arranged at the top of the discharge cover 3, an outlet 5 is arranged on the surface of the mixing drum 2, transmission pumps 18 are installed on both sides of the movable bottom plate 1, the input end and the output end of the transmission pump 18 are respectively connected to the outlet 5 and the inlet 4 through a hose, a heating mechanism is arranged on the surface of the mixing drum 2, and a stirring mechanism is arranged inside the mixing drum 2;

[0027] See also Figure 1 and 2 The heating mechanism first heats the asphalt inside the mixing barrel 2. The fluidity of the heated asphalt increases. At this time, the transmission pump 18 can extract the asphalt from the inside of the mixing barrel 2 through the outlet 5, and discharge it into the discharge hood 3 through the inlet 4, and finally spray it into the cracks in the road surface through the discharge hood 3, thereby repairing the cracks.

[0028] The heating mechanism includes a protective shell 6, an electric heating tube 7 and an insulating pad 8. The insulating pad 8 is bonded to the inner wall of the protective shell 6. Two protective shells 6 are provided. The electric heating tube 7 is vertically fixed between the two protective shells 6. The two protective shells 6 are respectively fixed at both ends of the mixing barrel 2. The outlet 5 passes through the surface of one of the protective shells 6 and the insulating pad 8.

[0029] See also Figure 1 and 2 The heat generated by the electric heating tube 7 can heat the mixing barrel 2. When the temperature of the mixing barrel 2 rises, the asphalt inside can be heated, so that the fluidity of the asphalt will not be reduced.

[0030] The stirring mechanism includes a dual-axis motor 9, a bracket 10, a driving shaft 11 and a stirring plate 12. The dual-axis motor 9 is fixed on the movable bottom plate 1, and multiple stirring plates 12 are vertically fixed to the surface of the bracket 10. The driving shaft 11 is fixedly arranged in the center of the bracket 10. One end of the driving shaft 11 rotates inside the mixing barrel 2 and passes through the mixing barrel 2 to be connected to the output end of the dual-axis motor 9.

[0031] See also Figure 2 The dual-axis motor 9 can drive the driving shaft 11 to rotate, and the driving shaft 11 can drive the bracket 10 to rotate. Finally, the bracket 10 drives the stirring plate 12 to rotate inside the mixing barrel 2 to achieve stirring of the asphalt inside the mixing barrel 2, so that the asphalt can be evenly heated.

[0032] Embodiment 2

[0033] In the above scheme, the heating of asphalt is achieved by the cooperation of the heating mechanism and the stirring mechanism. However, since the electric heating tube 7 is arranged on the surface of the mixing barrel 2, the temperature of the mixing barrel 2 will be high around and low in the center. Therefore, in this embodiment, a accommodating cavity 13 is arranged on the surface of each stirring plate 12. The accommodating cavity 13 is connected to the inner cavity of the mixing barrel 2. The inner wall of the accommodating cavity 13 is provided with a flexible mechanism. The flexible mechanism includes a rotating shaft 14 and a flexible blade 15. The flexible blade 15 is fixed to the surface of the rotating shaft 14. The rotating shaft 14 is rotatably arranged on the inner wall of the accommodating cavity 13 through a driving mechanism. The driving mechanism includes a ring gear 16 and a gear 17. The ring gear 16 is fixedly arranged on the inner wall of the accommodating cavity 13. One end of the rotating shaft 14 passes through the bracket 10 and extends to the other side of the bracket 10. The gear 17 is fixed to the surface of the rotating shaft 14, and the gear 17 is meshed with the ring gear 16. The multiple accommodating cavities 13 and the rotating shaft 14 are symmetrical about the midpoint of the bracket 10.

[0034] See also Figure 3 and 4Since the mixing barrel 2 is fixed on the movable bottom plate 1 in a horizontal manner, when the asphalt is discharged through the outlet 5, the liquid level inside the mixing barrel 2 gradually decreases. At this time, when the dual-axis motor 9 drives the drive shaft 11 to rotate, the drive shaft 11 can drive the stirring plate 12 to rotate synchronously through the bracket 10, and the stirring plate 12 can drive part of the asphalt to rise to the area above the inner cavity of the mixing barrel 2 without asphalt through the accommodating chamber 13 when rotating. Since the stirring plate 12 is close to the electric heating tube 7, the stirring plate 12 can evenly heat the asphalt inside the accommodating chamber 13 when passing through each electric heating tube 7. Finally, through the continuous rotation of the stirring plate 12, the asphalt inside the accommodating chamber 13 will return to the asphalt below the inner cavity of the mixing barrel 2 under the action of gravity for mixing. Multiple stirring plates 12 repeat the above process continuously, thereby achieving uniform heating of the asphalt.

[0035] It should be noted that when the stirring plate 12 is in the process of orbital rotation, the stirring plate 12 can drive the rotating shaft 14 and the gear 17 to rotate synchronously. Since the ring gear 16 is fixed, the gear 17 can drive the rotating shaft 14 to rotate by meshing with the ring gear 16 when it is in the process of orbital rotation, and then the rotating shaft 14 can drive the flexible blades 15 to rotate synchronously inside the accommodating chamber 13, thereby assisting the asphalt to be evenly heated through the rotation of the flexible blades 15.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road surface crack repairing device for highway maintenance, comprising a movable bottom plate (1) and a mixing drum (2), wherein the mixing drum (2) is arranged on the movable bottom plate (1), and is characterized in that: A discharge cover (3) is installed at one end of the movable bottom plate (1), an inlet (4) is arranged at the top of the discharge cover (3), an outlet (5) is arranged on the surface of the mixing barrel (2), a heating mechanism is arranged on the surface of the mixing barrel (2), and a stirring mechanism is arranged inside the mixing barrel (2); The heating mechanism comprises a protective shell (6), an electric heating tube (7) and a thermal insulation pad (8); the thermal insulation pad (8) is bonded to the inner wall of the protective shell (6); two protective shells (6) are provided; the electric heating tube (7) is vertically fixed between the two protective shells (6); the two protective shells (6) are respectively fixed to the two ends of the mixing barrel (2); and the outlet (5) passes through the surface of one of the protective shells (6) and the thermal insulation pad (8).

2. A road surface crack repairing device for highway maintenance according to claim 1, characterized in that: The stirring mechanism comprises a dual-axis motor (9), a bracket (10), a driving shaft (11) and a stirring plate (12); the dual-axis motor (9) is fixed on a movable bottom plate (1); a plurality of stirring plates (12) are vertically fixed on the surface of the bracket (10); the driving shaft (11) is fixedly arranged at the center of the bracket (10); one end of the driving shaft (11) rotates inside a mixing barrel (2) and passes through the mixing barrel (2) to be connected to the output end of the dual-axis motor (9).

3. A road surface crack repairing device for highway maintenance according to claim 2, characterized in that: The surface of each stirring plate (12) is provided with a receiving cavity (13), and the receiving cavity (13) is connected to the inner cavity of the mixing cylinder (2).

4. A road surface crack repairing device for highway maintenance according to claim 3, characterized in that: The inner wall of the accommodating cavity (13) is provided with a flexible mechanism, the flexible mechanism comprising a rotating shaft (14) and a flexible blade (15), the flexible blade (15) is fixed to the surface of the rotating shaft (14), and the rotating shaft (14) is rotatably arranged on the inner wall of the accommodating cavity (13) through a driving mechanism.

5. A road surface crack repairing device for highway maintenance according to claim 4, characterized in that: The driving mechanism comprises a gear ring (16) and a gear (17); the gear ring (16) is fixedly arranged on the inner wall of the accommodating chamber (13); one end of the rotating shaft (14) passes through the bracket (10) and extends to the other side of the bracket (10); the gear (17) is fixed on the surface of the rotating shaft (14), and the gear (17) is meshed with the gear ring (16).

6. A road surface crack repairing device for highway maintenance according to claim 4, characterized in that: The plurality of accommodating cavities (13) and the rotating shaft (14) are symmetrical about the center of the midpoint of the bracket (10).

7. A road surface crack repairing device for highway maintenance according to claim 1, characterized in that: A transmission pump (18) is installed on both sides of the movable bottom plate (1), and the input end and the output end of the transmission pump (18) are respectively connected to the outlet (5) and the inlet (4) through a hose.

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