CN111074738A

CN111074738A - Device for repairing cracked asphalt pavement

Info

Publication number: CN111074738A
Application number: CN201911264397.4A
Authority: CN
Inventors: 张帆
Original assignee: Guangzhou Haoheng Building Materials Technology Co ltd
Current assignee: Guangzhou Haoheng Building Materials Technology Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-04-28

Abstract

The invention discloses a device for repairing a cracked asphalt pavement, and belongs to the field of pavement maintenance equipment. The technical scheme is as follows: the steel brush bearing base band which can change the width of the working face along with the telescopic frames at the two sides in the cleaning mechanism can adapt to the road surfaces to be treated with different widths, the base band rotates and the steel brush fixedly connected below the base band cleans the cracked asphalt road, the cleaned sand dust is blown to two sides by the swinging air blowing pipe and is absorbed by the air suction pipes on two sides, the influence of the dust on workers and a travelling crane is avoided, the cracked road surface is irrigated and paved by the curing agent discharging pipe at the rear end, the flexible scraper at the rear part scrapes the curing agent emulsion evenly, and finally the aggregate discharge pipe sprays a layer of fine aggregate on the surface of the spread curing agent evenly to play the roles of water resistance and skid resistance, compared with manual operation, the device of the invention can replace heavy construction, effectively avoid the pollution of blown sand dust to the environment when cleaning and preprocessing the road surface, and realize the automatic repair of the cracked road surface.

Description

Device for repairing cracked asphalt pavement

Technical Field

The invention belongs to the field of pavement maintenance equipment, and particularly relates to a device for repairing a cracked asphalt pavement.

Background

With the rapid development of economic construction, the construction of high-grade roads is also changing day by day. The asphalt pavement is widely applied due to the advantages of good flatness, comfortable driving, low noise, short construction period, simple and convenient maintenance and the like, and plays a vital role in a highway traffic network when the proportion of the total mileage of the highway reaches more than 90 percent. However, in the using process, with the increasing traffic volume, the overload problem is serious, and in addition, the influence of environmental conditions such as heavy rain, high temperature and the like causes the asphalt pavement to have the defects of tracks, cracks, pits and the like, wherein the pit defect is especially serious. If the pit diseases cannot be repaired in time, the pit diseases can be further enlarged, a pit belt can be formed even in rainy season, the speed has to be reduced or the route has to be changed when the vehicle encounters the pit in the driving process, the driving of the following vehicle is seriously influenced, and traffic accidents are easily caused; for vehicles with large tonnage, the large impact force of the vehicle can easily cause the accidents of vehicle breaking and axle breakage. If the pit is not found in time and the vehicle directly runs through the pit, the vehicle can be greatly damaged, and the formed pit belt easily causes the vehicle to have accidents of breaking and breaking the shaft under the action of huge impact force on the vehicle. Currently, various diseases have appeared on many expressways built in different periods. The cracking and the network cracking of the asphalt pavement are the common diseases of the existing asphalt pavement, the cold patching material construction is adopted for repairing the pit slots of the existing asphalt pavement, and the technology of pouring cement concrete after expanding the slots is adopted for repairing the pit slots (broken plates and broken corners) of the cement pavement. When the cold patching material is used for patching the pits of the asphalt pavement, the cold patching material has poor cohesiveness and is not firmly combined with the asphalt pavement, so that the problems of poor stability, short service life, easy water leakage and the like exist; when the cement concrete pouring method is used for repairing the pit slot on the cement concrete pavement, the newly supplemented cement concrete has small area and high brittleness, and is easy to break at the repaired interface. In addition, newly poured cement concrete needs a one-week curing period, the open traffic period is long, and the influence on traffic is large. The cement concrete pouring method for repairing the pit slot on the cement concrete pavement has the problems of poor stability, short service life, long life span and the like. In addition, when a common mixer works, the stirring shaft drives the stirring blades to rotate, the linear speed on the stirring blades is gradually increased from the center of the stirring shaft along the radius, and the stirring speed has a gradient. That is, the mixture at the outer side of the mixing tank has good mixing effect, and the mixture at the inner side of the mixing tank, that is, the position close to the mixing shaft, has poor mixing effect. Due to the limitation of the rotation speed of the whole stirring device, the common mixer has a low-efficiency area (an area close to the position of the stirring shaft), and the mixture inside the stirring cylinder, namely the area close to the position of the stirring shaft, is not uniformly stirred. In addition, only the cracked part can be cut and removed in the past, and then the asphalt after being heated and melted is used for filling and repairing; with the popularization and application of the asphalt pavement net crack curing agent, the curing agent can be used as an asphalt pavement regeneration reducing agent, is rich in asphalt active ingredients and has good regeneration and reduction effects on aged asphalt pavement, a regeneration seal layer is formed after the curing agent is sprayed on the asphalt pavement, the curing agent permeates and activates the aged asphalt on the original pavement, the penetration degree and the ductility of the aged asphalt on the original pavement are greatly improved, the performance of the asphalt pavement is recovered, fine cracks are healed, a surface water seepage channel of the asphalt pavement is sealed, surface aggregate loosening is inhibited, the preventive maintenance of the asphalt pavement is realized, the construction temperature is between minus 15 ℃ and plus 50 ℃, so that the curing agent does not need to be heated like asphalt, can be used for quickly repairing cracks and the net crack asphalt pavement, greatly reduces the maintenance cost, has some defects, and needs to comprehensively clean up dust and sundries on cracks of the asphalt pavement in order to achieve the best effect, the assurance has abundant curing agent infiltration and fills the crack, and now through artifical preliminary treatment, manual with the steel brush clear up it, blows off the sand and soil of chapped department with the road surface hair-dryer after that, just can continue spreading of curing agent and spill, not only intensity of labour is higher, and manpower resources is extravagant too big, and the operational environment of raise dust also can cause the threat to health, influences driving and pedestrian.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: aiming at the problems that the labor intensity of the conventional manual method for repairing the cracked asphalt pavement is high, time and cost are consumed, the working environment of dust can threaten the health and influence the driving and pedestrians, a device for repairing the cracked asphalt pavement is provided.

In order to solve the technical problems, the invention adopts the following technical scheme:

a device for repairing a cracked asphalt pavement comprises a first machine body, a second machine body and universal wheels; the first machine body is in a U-shaped structure, the groove on the side surface of the first machine body corresponds to the second machine body, two ends of the second machine body are respectively and fixedly connected with a sliding rod, the two sliding rods are connected to the first machine body in a sliding way and are positioned at the positions of two ends of the groove, so that the second machine body can move left and right relative to the first machine body through the sliding rods at the two ends, the middle of the second machine body is rotatably connected with a rotating shaft which transversely crosses the two ends of the second machine body, two sides of the second machine body are respectively provided with a horizontally-installed telescopic frame, two ends of the two telescopic frames are respectively and fixedly connected with a threaded sleeve, two ends of the rotating shaft and the positions close to the two ends of the second machine body are respectively and fixedly connected with a driving bevel gear, two pairs of driven bevel gears are respectively and rotatably connected at, the other end of each driven bevel gear is fixedly connected with a threaded rod, the threaded rod penetrates through the second machine body and extends to one end, close to the outside, of the two sides of the second machine body and is respectively screwed into a corresponding threaded sleeve on the telescopic frame, a cleaning mechanism is arranged close to the right position of the bottom end of the second machine body and comprises two symmetrically-installed steel brush bearing basebands, a driven guide wheel is sleeved at one end, close to the outside, of each two steel brush bearing basebands, a driving guide wheel is sleeved at one end, close to the inside, of each two steel brush bearing basebands, the center of each driven guide wheel is fixedly connected to the lower end of the corresponding driven rotating shaft, the upper end of each driven rotating shaft is rotatably connected to the telescopic frame on the corresponding side, the centers of the driving guide wheels on the two steel brush bearing basebands are respectively and fixedly connected to the lower ends of the driving rotating shafts, the upper ends of the, the left end of the turbofan is fixedly connected with a dust collecting chamber, the dust collecting chamber and the turbofan are separated to form a fixedly connected filter screen, a connecting pipe A is arranged on the right side of the turbofan, a connecting pipe B communicated with the dust collecting chamber is arranged on the dust collecting chamber, a horizontally-mounted air blowing pipe is rotatably connected to the bottom end of the second machine body close to the middle position, the left end of the air blowing pipe is communicated with the right end of the connecting pipe A, a flat air nozzle is arranged on an air outlet of the air blowing pipe, a rocker is fixedly connected to the center of the right end of the air blowing pipe, the other end of the rocker is movably connected to a position, away from the rotation center, of a crank A on the second machine body, horizontally-mounted cylindrical air suction pipes are fixedly connected to the lower portions of expansion brackets on two sides of the second machine body through two pairs of brackets B respectively, the left end of the air suction pipes is communicated with the right end of the connecting Arrange the material pipe to the outside downside in its bottom curing agent, the material pipe sliding connection is arranged in the maintenance is at first organism left end, first organism left end arranges the material pipe at the aggregate that the left end sliding connection that the material pipe was arranged to the curing agent is located, material pipe upper end fixedly connected with sliding sleeve is arranged to the aggregate, it has the carrier bar to alternate in the middle of the sliding sleeve, the carrier bar both ends are respectively through the both ends of support A fixed connection at second organism left end slide bar, it is connected with crank B to rotate on one of them support A, the last swing joint who keeps away from rotation center of crank B has the side link, side link other end swing joint is on sliding sleeve and on the position that is close to crank B one side.

Preferably, the outer sides of two driving guide wheels in the cleaning mechanism are respectively sleeved with a helical gear, the two helical gears are meshed with each other, and a driving rotating shaft on one driving guide wheel is in transmission connection with a driving belt pulley arranged on the second machine body through a belt.

Preferably, two driven rotating shafts in the cleaning mechanism are respectively and rotatably connected to the telescopic frame and in the correspondingly arranged sliding grooves, and the right ends of the sliding grooves and the driving rotating shaft on the second machine body are located on the same vertical line.

Preferably, the lower end positions of the two steel brush bearing base bands in the cleaning mechanism are respectively and fixedly connected with a plurality of vertically arranged steel brushes.

Preferably, a pair of universal wheels is respectively installed at two ends of the bottom of the second machine body.

Preferably, support C left side fixedly connected with scraper blade mechanism on the curing agent row material pipe, scraper blade mechanism includes that fixed connection bears the frame on support C, bear the frame lower extreme and rotate through the revolute pair and be connected with the arc scraper blade, arc scraper blade upside is connected with the spring, spring other end fixed connection bears the left side of frame.

Preferably, a pair of universal wheels is respectively installed at two ends of the bottom of the first machine body.

Preferably, the first organism left side is equipped with adjacent aggregate storage tank and bituminous paving net and splits curing agent storage tank, the aggregate storage tank is arranged the pipe through flexible hose A and aggregate and is communicated with each other, bituminous paving net splits curing agent storage tank is arranged the pipe through flexible hose B that the bottom intercommunication set up and is connected with the curing agent.

Preferably, the rotating shaft penetrates through the second machine body and extends to the tail end of the outer side of the right end of the second machine body to be fixedly connected with a hand wheel.

Compared with other methods, the method has the beneficial technical effects that:

the front end of the advancing direction is provided with a cleaning mechanism, wherein a steel brush bearing base band which can change the width of a working face along with telescopic frames at two sides can adapt to pavements to be treated with different widths, the rotating base band and the steel brush fixedly connected below the base band clean cracked asphalt roads, then the cleaned sand dust is blown to two sides by a swinging air blowing pipe and is absorbed and uniformly collected by air suction pipes at two sides, the influence of dust raising phenomena on workers and travelling cranes is avoided, the cracked pavements are paved by a curing agent discharging pipe at the rear end, a flexible scraper at the rear can scrape curing agent emulsion into cracks and uniformly scrape the cracks, and a layer of fine aggregate which is uniformly sprayed on the surface of the paved curing agent by the finally arranged aggregate discharging pipe which can swing left and right is used for regeneration and reduction, water and skid resistance, and beautification of old roads at the same time, so as to realize multifunctional curing effect, compared with the traditional manual operation, the device of the invention can replace the heavy construction of manpower, effectively avoid the pollution of the blown sand dust to the environment when cleaning and preprocessing the pavement, and realize the automatic repair of the cracked pavement.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention shown in FIG. 1;

FIG. 3 is a schematic structural view of the cleaning mechanism 5 in FIG. 1;

FIG. 4 is a schematic view of the scraper mechanism 8 of FIG. 1;

FIG. 5 is a schematic diagram of the right side of the gas blow pipe 6 in FIG. 1;

1. a first body; 2. a second body; 3. a telescopic frame; 301. a threaded sleeve; 4. an air intake duct; 5. a cleaning mechanism; 501. a driven guide wheel; 502. a driving guide wheel; 503. the steel brush bearing base band; 504. a helical gear; 505. a steel brush; 6. an air blowing pipe; 601. an air tap; 602. a rocker; 7. a curing agent discharging pipe; 8. a scraping plate mechanism; 801. a carrier; 802. an arc-shaped scraper plate; 803. a revolute pair; 804. a spring; 9. an aggregate discharge pipe; 10. a rotating shaft; 11. a driving bevel gear; 12. a slide bar; 13. a sliding sleeve; 14. a carrier bar; 15. a bracket A; 16. a crank B; 17. a side link; 18. a threaded rod; 19. a driven bevel gear; 20. a drive pulley; 21. a belt; 22. a chute; 23. a crank A; 24. a bracket B; 25. a turbo fan; 26. filtering with a screen; 27. a connecting pipe A; 28. a dust collecting chamber; 29. a connecting pipe B; 30. a support C; 31. a driven rotating shaft; 32. a driving rotating shaft; 33. a storage tank for a net crack curing agent for the asphalt pavement; 34. an aggregate storage tank; 35. a flexible hose A; 36. a flexible hose B; 37. a universal wheel; 38. a handwheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The words "upper", "lower", "left" and "right" when used herein are merely intended to designate corresponding upper, lower, left and right directions in the drawings, and do not limit the structure thereof.

A device for repairing a cracked asphalt pavement as shown in fig. 1 or 2 includes a first body 1, a second body 2, and universal wheels 37; the first machine body 1 is in a U-shaped structure, and the groove on the side surface of the first machine body 1 corresponds to the second machine body 2, so that when the device is not used, the second machine body 2 can be contracted into the groove body of the first machine body 1, and the first machine body is convenient to move; as shown in fig. 1 or 2, two ends of the second body 2 are fixedly connected with a sliding rod 12 respectively, and the two sliding rods 12 are slidably connected to the first body 1 and located at two ends of the groove, so that the second body 2 can move left and right relative to the first body 1 through the sliding rods 12 at the two ends, and the second body 2 is convenient to use when being pulled out, and is pushed back to the corresponding groove of the first body 1 when not in use, thereby protecting the second body 2 and reducing the volume for convenient movement; as shown in fig. 2, a rotating shaft 10 is rotatably connected in the middle of the second body 2 and crosses over two ends of the second body, two horizontally installed telescopic frames 3 are respectively arranged on two sides of the second body 2, two threaded sleeves 301 are respectively fixedly connected to two ends of the two telescopic frames 3, driving bevel gears 11 are respectively fixedly connected to two ends of the rotating shaft 10 and near two ends of the second body 2, two pairs of driven bevel gears 19 are respectively rotatably connected to two ends of the second body 2 and located on two sides of the two driving bevel gears 11, and four driven bevel gears 19 are symmetrical along the middle of the second body 2, a threaded rod 18 is fixedly connected to the other end of each driven bevel gear 19, the threaded rod 18 penetrates through the second body 2 and extends to one end of the two outer sides of the second body 2 and is respectively screwed into the corresponding threaded sleeves 301 on the telescopic frames 3, so as to be rotatable by the rotating shaft, the driving bevel gears 11 at the two ends are meshed to drive the four driven bevel gears 19 to rotate simultaneously, and then the rotary motion is converted into linear motion through the threaded rods 18 and the threaded sleeves 301, so that the telescopic frames 3 at the two sides of the second machine body 2 extend or retract towards the two sides simultaneously, and the width of the cleaning mechanism 5 is adjusted to adapt to the cracked pavements with different widths, so that the quick and effective pretreatment cleaning is performed on the cracked pavements; as shown in fig. 1, 2 or 3, a cleaning mechanism 5 is disposed near the right position of the bottom end of the second body 2, the cleaning mechanism 5 includes two symmetrically installed steel brush bearing base bands 503, a driven guide wheel 501 is sleeved at one end of the two steel brush bearing base bands 503 near the outer side, a driving guide wheel 502 is sleeved at one end of the two steel brush bearing base bands 503 near the inner side, the centers of the driven guide wheels 501 are fixedly connected to the lower end of the driven rotating shaft 31, the upper end of the driven rotating shaft 31 is rotatably connected to the telescopic frame 3 on the corresponding side, the centers of the driving guide wheels 502 on the two steel brush bearing base bands 503 are respectively fixedly connected to the lower end of the driving rotating shaft 32, and the upper end of the driving rotating shaft 32 is rotatably connected to the second body 2, so that the cleaning mechanism 5 can be horizontally installed at the bottom of the second body 2, and the two steel brush bearing base; as shown in fig. 1, a turbofan 25 is fixedly connected to a right side of a bottom end of the second body 2, a dust collecting chamber 28 is fixedly connected to a left end of the turbofan 25, a filter screen 26 is fixedly connected to the dust collecting chamber 28 and spaced from the turbofan 25, so that sand and dust can be isolated and kept in the dust collecting chamber 28 for uniform collection while moving air, a connecting pipe a27 is arranged on the right side of the turbofan 25, a connecting pipe B29 communicated with the dust collecting chamber 28 is arranged on the bottom end of the second body 2, a horizontally installed air blowing pipe 6 is rotatably connected to a middle position of the bottom end of the second body 2, the left end of the air blowing pipe 6 is communicated with the right end of the connecting pipe a27, and a flat air nozzle 601 is arranged on an air outlet of the air blowing pipe 6, so that the flow rate of air passing through the air nozzle 601 can be; as shown in fig. 5, a rocker 602 is fixedly connected to the center of the right end of the air blowing pipe 6, and the other end of the rocker 602 is movably connected to a position of a crank a23 on the second body 2, which is far away from the rotation center, so that a crank rocker structure can be formed, the air blowing pipe 6 is driven to repeatedly swing left and right by the rotation of a crank a23, and the dust and sand cleaned by the cleaning mechanism 5 are blown to both sides; as shown in fig. 1 or 2, the lower parts of the telescopic frames 3 at both sides of the second body 2 are fixedly connected with horizontally installed cylindrical air suction pipes 4 through two pairs of brackets B24 respectively, the left ends of the air suction pipes 4 are connected and communicated with the right end of a connecting pipe B29, so that the turbofan 25 rotates to drive the air flow to move from right to left, sand and dust flows along with the air flow and enters the dust collection chamber 28 through the air suction pipes 4, and finally the sand and dust is blocked by the filter screen 26 and stays in the dust collection chamber 28, thereby preventing the sand and dust blown by the air blowing pipes 4 from diffusing and polluting the environment; as shown in fig. 1, the lower end of the part of the slide bar 12 at the left end of the second body 2, which is located in the first body 1, is fixedly connected with a curing agent discharging pipe 7 which penetrates through the first body 1 and extends to the lower side of the bottom end of the first body 1, through a support C30, and the curing agent discharging pipe 7 is slidably connected to the left end of the first body 1, so that when the second body 2 moves relative to the first body 1 through the slide bar 12, the curing agent discharging pipe 7 can be driven to slide out of the first body 1, and the curing agent is sprayed on the cleaned road surface behind the second body 2; as shown in fig. 1 or 2, a horizontally installed aggregate discharging pipe 9 is slidably connected to the left end of the first body 1 and located at the left end of the curing agent discharging pipe 7, a sliding sleeve 13 is fixedly connected to the upper end of the aggregate discharging pipe 9, a carrier bar 14 is inserted in the middle of the sliding sleeve 13, two ends of the carrier bar 14 are fixedly connected to two ends of a sliding bar 12 at the left end of the second body 2 through brackets a15, respectively, a crank B16 is rotatably connected to one of the brackets a15, a frame connecting bar 17 is movably connected to one position of the crank B16 away from the rotation center, the other end of the frame connecting bar 17 is movably connected to the sliding sleeve 13 and is close to one side of the crank B16, so that the crank B16 can rotate to drive the sliding sleeve 13 to swing back and forth on the carrier bar 14, so that the aggregates can be sprayed from holes at the bottom of the aggregate discharging pipe 9 to uniformly cover the surface of the curing agent laid, the fine aggregate can prevent the wheel sticking and slipping of the road surface travelling crane.

As shown in fig. 2 or 3, wherein, two helical gears 504 are respectively sleeved on the outer sides of two driving guide wheels 502 in the cleaning mechanism 5, and the two helical gears 504 are engaged with each other, the driving rotating shaft 32 on one of the driving guide wheels 502 is in transmission connection with the driving pulley 20 arranged on the second body 2 through a belt 21, so that the belt transmission can drive one of the rotating driving rotating shafts 32 to rotate through power transmission, thereby driving the driving guide wheels 502 to rotate, and since the two driving guide wheels 502 are in engagement transmission through the helical gears 504, further driving the driving guide wheel 502 on the other side to rotate, the two steel brush carrier base bands 503 can rotate simultaneously.

As shown in fig. 2, two driven rotating shafts 31 in the cleaning mechanism 5 are respectively rotatably connected to the telescopic frame 3 and in the corresponding sliding grooves 22, and the right end of the sliding groove 22 and the driving rotating shaft 32 on the second body 2 are located on the same vertical line, so that the two steel brush carrying base bands 503 can rotate along with the movement of the telescopic frame 3, and the crossing width of the cleaning mechanism 5 is adjusted to clean the cracked road surfaces with different widths.

As shown in fig. 1, a plurality of vertically arranged steel brushes 505 are fixedly connected to the lower ends of two steel brush bearing base bands 503 of the cleaning mechanism 5, so that the rotating steel brush bearing base bands 503 can drive the steel brushes 505 to sweep away cracks and attached impurities in the asphalt road.

Wherein, a pair of universal wheels 37 is installed at both ends of the bottom of the second body 2 respectively, so that the second body 2 can move forward and move simultaneously along with the first body 1.

As shown in fig. 1 or 4, a scraper mechanism 8 is fixedly connected to the left side of a support C30 on the curing agent discharge pipe 7, the scraper mechanism 8 comprises a bearing frame 801 fixedly connected to a support C30, the lower end of the bearing frame 801 is rotatably connected with an arc scraper 802 through a rotating pair 803, the upper side of the arc scraper 802 is connected with a spring 804, and the other end of the spring 804 is fixedly connected to the left side of the bearing frame 801, so that the arc scraper 802 can flexibly sweep the spread curing agent to uniformly cover the curing agent above the cracked road surface.

Wherein, a pair of universal wheels 37 are respectively installed at two ends of the bottom of the first machine body 1.

The left side of the first machine body 1 is provided with an adjacent aggregate storage tank 34 and an asphalt pavement net-cracking curing agent storage tank 33, the aggregate storage tank 34 is communicated with the aggregate discharge pipe 9 through an expansion hose A35, and the asphalt pavement net-cracking curing agent storage tank 33 is connected with the curing agent discharge pipe 7 through an expansion hose B36 communicated with the bottom end.

The rotating shaft 10 penetrates through the second body 2 and extends to the end of the outer side of the right end of the second body 2, and a hand wheel 38 is fixedly connected to the end of the outer side of the right end of the second body 2.

The present invention has been further described with reference to specific embodiments, but it should be understood that the detailed description should not be construed as limiting the spirit and scope of the present invention, and various modifications made to the above-described embodiments by those of ordinary skill in the art after reading this specification are within the scope of the present invention.

Claims

1. A device for repairing a cracked asphalt pavement comprises a first machine body (1), a second machine body (2) and universal wheels (37), and is characterized in that the first machine body (1) is of a U-shaped structure, a groove in the side face of the first machine body (1) corresponds to the second machine body (2), two ends of the second machine body (2) are respectively and fixedly connected with a sliding rod (12), the two sliding rods (12) are connected to the first machine body (1) in a sliding mode and located at positions at two ends of the groove, so that the second machine body (2) can move left and right relative to the first machine body (1) through the sliding rods (12) at two ends, a rotating shaft (10) crossing two ends of the second machine body (2) is rotatably connected in the middle of the second machine body, two sides of the second machine body (2) are respectively provided with horizontally-mounted telescopic frames (3), two ends of the two telescopic frames (3) are respectively and fixedly connected with threaded sleeves (301), the two ends of the rotating shaft (10) and the positions close to the two ends of the second machine body (2) are respectively and fixedly connected with driving bevel gears (11), the two ends of the second machine body (2) and the positions on the two sides of the two driving bevel gears (11) are respectively and rotatably connected with two pairs of driven bevel gears (19), the four driven bevel gears (19) are symmetrical along the middle position of the second machine body (2), the other end of each driven bevel gear (19) is fixedly connected with a threaded rod (18), the threaded rod (18) penetrates through the second machine body (2) and extends to the outer ends of the two sides of the second machine body (2) and is respectively screwed into corresponding threaded sleeves (301) on the telescopic frame (3), a cleaning mechanism (5) is arranged at the right position of the bottom end of the second machine body (2) and comprises two symmetrically installed steel brush bearing base belts (503), and driven guide wheels (501) are sleeved at the ends of the two steel brush bearing base belts (503) close to, the two steel brush bearing base belts (503) are sleeved with a driving guide wheel (502) by one end at the inner side, the centers of the driven guide wheels (501) are fixedly connected to the lower end of a driven rotating shaft (31), the upper end of the driven rotating shaft (31) is rotatably connected to a telescopic frame (3) at one corresponding side, the centers of the driving guide wheels (502) on the two steel brush bearing base belts (503) are respectively fixedly connected to the lower ends of driving rotating shafts (32), the upper end of the driving rotating shaft (32) is rotatably connected to a second machine body (2), a turbofan (25) is fixedly connected to the right side of the bottom end of the second machine body (2), a dust collection chamber (28) is fixedly connected to the left end of the turbofan (25), a filter screen (26) is fixedly connected to the dust collection chamber (28) and the turbofan (25) in a spaced manner, a connecting pipe A (27) is arranged at the right side of the turbofan (25), and a connecting pipe B (29, the bottom end of the second machine body (2) is rotatably connected with a horizontally-mounted air blowing pipe (6) by a middle position, the left end of the air blowing pipe (6) is communicated with the right end of a connecting pipe A (27), a flat air nozzle (601) is arranged on an air outlet of the air blowing pipe (6), a rocker (602) is fixedly connected with the center of the right end of the air blowing pipe (6), the other end of the rocker (602) is movably connected with a crank A (23) on the second machine body (2) to keep away from a rotating center, the lower parts of expansion brackets (3) on the two sides of the second machine body (2) are respectively and fixedly connected with a horizontally-mounted columnar air suction pipe (4) through two pairs of brackets B (24), the left end of the air suction pipe (4) is connected and communicated with the right end of a connecting pipe B (29), and the lower end of a part, in the first machine body (1), of a fixedly connected slide rod (12) on the left end of the second machine body (2) is fixedly connected with a A curing agent discharging pipe (7) arranged at the lower side outwards, the curing agent discharging pipe (7) is connected to the left end of the first machine body (1) in a sliding way, the left end of the first machine body (1) and the left end of the curing agent discharging pipe (7) are connected with a horizontally arranged aggregate discharging pipe (9) in a sliding way, the upper end of the aggregate discharging pipe (9) is fixedly connected with a sliding sleeve (13), a bearing rod (14) is inserted in the middle of the sliding sleeve (13), two ends of the bearing rod (14) are respectively and fixedly connected with two ends of a sliding rod (12) at the left end of the second machine body (2) through a bracket A (15), a crank B (16) is rotatably connected on one bracket A (15), a side link (17) is movably connected to one position of the crank B (16) far away from the rotation center, the other end of the side link (17) is movably connected to the sliding sleeve (13) and is close to one side of the crank B (16).

2. The device for repairing cracked asphalt pavement according to claim 1, wherein a bevel gear (504) is respectively sleeved outside two driving guide wheels (502) in the cleaning mechanism (5) and the two bevel gears (504) are meshed with each other, and a driving rotating shaft (32) on one of the driving guide wheels (502) is in transmission connection with a driving pulley (20) arranged on the second machine body (2) through a belt (21).

3. The device for repairing cracked asphalt pavement according to claim 1, wherein two driven rotating shafts (31) in the cleaning mechanism (5) are respectively and rotatably connected to the telescopic frame (3) and in correspondingly arranged sliding chutes (22), and the right ends of the sliding chutes (22) and the driving rotating shaft (32) on the second machine body (2) are on the same vertical line.

4. The device for repairing cracked asphalt pavement according to claim 1, wherein a plurality of vertically arranged steel brushes (505) are fixedly connected to the lower end positions of the two steel brush carrying base belts (503) in the cleaning mechanism (5).

5. The device for repairing cracked asphalt pavement according to claim 1, wherein a pair of universal wheels (37) are respectively mounted at two ends of the bottom of the second machine body (2).

6. The device for repairing cracked asphalt pavement according to claim 1, characterized in that a scraper mechanism (8) is fixedly connected to the left side of a support C (30) on the curing agent discharging pipe (7), the scraper mechanism (8) comprises a bearing frame (801) fixedly connected to the support C (30), the lower end of the bearing frame (801) is rotatably connected with an arc-shaped scraper (802) through a rotating pair (803), the upper side of the arc-shaped scraper (802) is connected with a spring (804), and the other end of the spring (804) is fixedly connected to the left side of the bearing frame (801).

7. The device for repairing cracked asphalt pavement according to claim 1, wherein a pair of universal wheels (37) are respectively mounted at two ends of the bottom of the first machine body (1).

8. The device for repairing cracked asphalt pavement according to claim 1, wherein an aggregate storage tank (34) and an asphalt pavement network cracking curing agent storage tank (33) are arranged on the left side of the first machine body (1) and are adjacent to each other, the aggregate storage tank (34) is communicated with the aggregate discharge pipe (9) through an expansion hose A (35), and the asphalt pavement network cracking curing agent storage tank (33) is connected with the curing agent discharge pipe (7) through an expansion hose B (36) with the bottom end communicated with each other.

9. The device for repairing cracked asphalt pavement according to claim 1, wherein a hand wheel (38) is fixedly connected to the end of the rotating shaft (10) which penetrates through the second machine body (2) and extends to the outer side of the right end of the second machine body (2).