CN217127956U - Utilize polyurethane to toughen device of concrete restoration road surface crack - Google Patents

Abstract

A device for repairing pavement cracks by utilizing polyurethane toughened concrete belongs to the technical field of road and bridge engineering repair, and aims to solve the problems that the spraying materials of the existing pavement repairing device are all fixedly arranged and are not beneficial to adapting to the extending direction of cracks, when in use, the repairing efficiency is greatly reduced and the repairing effect is not ideal, the charging basket in the device of the utility model can slide along the width direction of the frame, and handles which are convenient to push and pull are arranged at the two ends of the sliding plate, when the paint repair device is used, two persons are needed to cooperate, one person pushes the frame to move forwards, the other person pulls or pushes the sliding plate according to the extending position of the crack, so that paint positioned in the sliding plate feeding barrel can flow down according to the sliding position of the sliding plate, the paint is attached to the crack to the greatest extent, the repair efficiency is improved while the repair accuracy is guaranteed, and the repair material is saved to the greatest extent.

Description

Utilize polyurethane to toughen device of concrete restoration road surface crack

Technical Field

The utility model belongs to the technical field of road and bridge engineering restoration, concretely relates to utilize polyurethane to toughen concrete and restore cracked device in road surface.

Background

Among many diseases of cement concrete, cracks are an extremely serious disease. In the case of cement concrete, the occurrence of cracks is inevitable due to the inherent properties of the material. The micro cracks will slowly develop into large cracks under the action of the driving load. If not handled in a timely manner, the cracks can grow larger and can severely extend through the entire pavement slab. When the damage reaches a certain degree, the road surface crack can generate a mud pumping phenomenon, and the road panel is empty in time, so that the road panel loses the function, the driving safety of the vehicle is seriously influenced, and unnecessary economic loss is generated.

After the road surface is damaged, the road surface should be treated in time, otherwise the service performance of the road surface is rapidly reduced, and finally the road surface body is possibly damaged, and only the plate replacement treatment can be carried out, so that not only is the resource waste caused, but also the economic development is seriously influenced.

The cement concrete pavement in cold areas is easy to be damaged under the combined action of traffic load and natural factors, wherein cracks are one of the main damage forms. In order to prolong the service life of the pavement, the cracks need to be effectively repaired in time. Because the extending direction of crack is not fixed, its form is more random itself, the material spraying of current road surface patching device all is fixed the setting, be unfavorable for adapting to crack extending direction, the very big repair efficiency and the repair effect of having reduced when using, and road surface crack repair many adopts materials such as pitch, epoxy, but this type of material has the cost height, easily ageing, the defect of not environmental protection, consequently research and development one kind utilize the device of polyurethane toughened concrete restoration road surface crack to overcome above-mentioned drawback and be very according with actual need.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the spraying materials of the existing pavement repairing device are all fixedly arranged, are not beneficial to adapting to the extending direction of the crack, and greatly reduce the repairing efficiency and the repairing effect when in use, thereby providing a device for repairing the pavement crack by utilizing the polyurethane toughened concrete;

a device for repairing pavement cracks by utilizing polyurethane toughened concrete comprises a main frame, a supporting plate, a storage battery mounting seat, a storage battery, a charging basket, a resistance wire heating net, a connecting pipe, a discharging pipe, two compression rollers, a sliding assembly and a stirring assembly, wherein the storage battery is arranged on the storage battery mounting seat;

the main frame comprises two n-shaped frames, two middle connecting beams and two top supporting beams; the two n-type frames are oppositely arranged, the two middle connecting beams are horizontally arranged between the two n-type frames and are arranged in parallel, one end of each middle connecting beam is fixedly connected with the middle part of one supporting leg in one n-type frame, the two top supporting beams are horizontally arranged between the two n-type frames and are arranged in parallel, one end of each top supporting beam is fixedly connected with the upper part of one supporting leg in one n-type frame, and the bottom of each supporting leg in each n-type frame is provided with a roller;

the support plate is arranged on the two middle connecting beams, the support plate is detachably connected with the upper surfaces of the two middle connecting beams, the storage battery mounting seat is fixedly connected on the upper surface of the support plate, the storage battery is arranged in the storage battery mounting seat, the sliding assembly is arranged on one side of the support plate, the sliding assembly is arranged on the two middle connecting beams, the charging basket is embedded in the sliding assembly, the stirring assembly is arranged on the upper surface of the sliding assembly, the stirring end of the stirring assembly is arranged right above the charging basket, the power input end of the stirring assembly is connected with the storage battery through a wire, the outer side of the charging basket is wrapped with a resistance wire heating net, the resistance wire heating net is connected with the storage battery through a wire, the connecting pipe is arranged at the bottom of the charging basket along the vertical direction, the top end of the connecting pipe is communicated with the bottom of the charging basket, the bottom end of the connecting pipe is sleeved with a discharging pipe, and the discharging pipe is detachably connected with the connecting pipe, the valve is arranged on the discharge pipe, the lower part of one side of each n-shaped frame, which faces the charging bucket, is provided with a compression roller, a rotating shaft is inserted into each compression roller, two ends of each rotating shaft are fixedly connected with a support leg of the n-shaped frame through a connecting rod respectively, and the rotating shaft is rotatably connected with the connecting rods;

furthermore, an external thread is processed on the outer wall of the bottom end of the connecting pipe, an internal thread matched with the external thread is processed on the inner wall of the top end of the discharge pipe, and the connecting pipe is detachably connected with the discharge pipe through the thread;

furthermore, a handle is arranged on the outer side of each support leg in each n-shaped frame along the length direction of the support leg;

furthermore, the sliding assembly comprises two slideways and a sliding plate, the two slideways are arranged in parallel, the two slideways are arranged on the two middle connecting beams along the width direction of the main frame, the bottom of the sliding plate is symmetrically provided with two pulley blocks along the central line of the width direction of the sliding plate, each pulley block is arranged corresponding to one slideway, each pulley block is correspondingly arranged on one slideway, the sliding plate is connected with the two slideways in a sliding way through the two pulley blocks, a circular through hole is processed at the center of the sliding plate, a charging basket wrapped with a resistance wire heating net is embedded in the circular through hole on the sliding plate, and the stirring assembly is arranged on the upper surface of the sliding plate;

furthermore, the pulley block comprises four sliding wheels which are arranged at equal intervals along the length direction of the slide way, and each sliding wheel is fixedly connected with the bottom surface of the sliding plate;

furthermore, two ends of the sliding plate extending along the length direction of the slideway are respectively and fixedly connected with a handle;

furthermore, the stirring assembly comprises four lifting cylinders, a top mounting plate, a motor, a coupler and a stirring roller, wherein the four lifting cylinders are respectively and correspondingly arranged at four corners of the upper surface of the sliding plate along the vertical direction, the bottom of each lifting cylinder is fixedly connected with the upper surface of the sliding plate, the top mounting plate is arranged at the tops of the four lifting cylinders, the lower surface of the top mounting plate is fixedly connected with the top end of a piston rod in each lifting cylinder, the motor is inverted on the lower surface of the top mounting plate, a shell of the motor is fixedly connected with the lower surface of the top mounting plate, an output shaft of the motor is connected with the stirring roller through the coupler, and the stirring roller is positioned right above the charging basket;

furthermore, the stirring roller comprises a connecting shaft, a mounting plate, a main stirring rod and N auxiliary stirring rods, wherein the connecting shaft is arranged at the center of the upper surface of the mounting plate along the vertical direction, the bottom end of the connecting shaft is fixedly connected with the upper surface of the mounting plate, the top end of the connecting shaft is connected with an output shaft of a motor through a coupler, the main stirring rod is arranged at the center of the lower surface of the mounting plate along the vertical direction, the top end of the main stirring rod is fixedly connected with the lower surface of the mounting plate, the N auxiliary stirring rods are arranged on the lower surface of the mounting plate along the circumferential direction at equal intervals, the top end of each auxiliary stirring rod is fixedly connected with the lower surface of the mounting plate, and the length of each auxiliary stirring rod is smaller than that of the main stirring rod;

further, the storage bucket is the cone-shaped bucket, and the cone-shaped end is the bottom of storage bucket, and the top of connecting pipe sets up with the cone-shaped end intercommunication in the storage bucket.

Compared with the prior art, the utility model following beneficial effect has:

1. the utility model provides a pair of utilize tough concrete repair road surface fissured device of polyurethane, in the application device storage bucket wherein can slide along frame width direction to be equipped with the handle of being convenient for promote and pulling at the both ends of sliding plate, need two people to cooperate when using, alone promote the frame and move forward, another people is according to crack extended position pulling or promote the sliding plate, the coating that makes to be arranged in the storage bucket on the sliding plate can be left according to the sliding position of sliding plate, at utmost and crack laminating, when having guaranteed the accuracy of repairing, the repair efficiency has also been improved, and the at utmost has practiced thrift repair material.

2. The utility model provides a pair of utilize polyurethane to toughen concrete and restore cracked device in road surface still is equipped with heating and stirring subassembly in this device, can avoid polyurethane to toughen concrete and air-dry in the storage bucket and solidify, cause the connecting pipe and arrange the going on of material pipe jam influence repair work.

Drawings

Fig. 1 is a schematic view of the main view of the present invention:

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the direction A-A of the present invention;

FIG. 4 is a schematic view of a stirring roller according to the present invention;

FIG. 5 is a schematic bottom view of the stirring roller of the present invention;

in the figure, a 1 n-type frame, 2 intermediate connecting beams, 3 top supporting beams, 4 supporting plates, 5 storage battery mounting seats, 6 storage batteries, 7 slideways, 8 sliding plates, 9 charging barrels, 10 lifting cylinders, 11 top mounting plates, 12 motors, 13 couplers, 14 stirring rollers, 141 connecting shafts, 142 mounting plates, 143 main stirring rods, 144 auxiliary stirring rods, 15 resistance wire heating nets, 16 connecting pipes, 17 discharging pipes and 18 pressing rollers are arranged.

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1 to 5, and provides a device for repairing pavement cracks by utilizing polyurethane toughened concrete, which comprises a main frame, a supporting plate 4, a storage battery mounting seat 5, a storage battery 6, a charging basket 9, a resistance wire heating net 15, a connecting pipe 16, a discharging pipe 17, two compression rollers 18, a sliding assembly and a stirring assembly;

the main frame comprises two n-shaped frames 1, two middle connecting beams 2 and two top supporting beams 3; the two n-type frames 1 are oppositely arranged, the two middle connecting beams 2 are horizontally arranged between the two n-type frames 1, the two middle connecting beams 2 are arranged in parallel, one end of each middle connecting beam 2 is fixedly connected with the middle part of one supporting leg in one n-type frame 1, the two top supporting beams 3 are horizontally arranged between the two n-type frames 1, the two top supporting beams 3 are arranged in parallel, one end of each top supporting beam 3 is fixedly connected with the upper part of one supporting leg in one n-type frame 1, and the bottom of each supporting leg in each n-type frame 1 is provided with a roller;

the support plate 4 is arranged on the two middle connecting beams 2, the support plate 4 is detachably connected with the upper surfaces of the two middle connecting beams 2, the storage battery mounting seat 5 is fixedly connected on the upper surface of the support plate 4, the storage battery 6 is arranged in the storage battery mounting seat 5, the sliding assembly is arranged on one side of the support plate 4 and is arranged on the two middle connecting beams 2, the charging basket 9 is embedded in the sliding assembly, the stirring assembly is arranged on the upper surface of the sliding assembly, the stirring end of the stirring assembly is arranged right above the charging basket 9, the power input end of the stirring assembly is connected with the storage battery 6 through a wire, the outer side of the charging basket 9 is wrapped with a resistance wire heating net 15, the resistance wire heating net 15 is connected with the storage battery 6 through a wire, the connecting pipe 16 is arranged at the bottom of the charging basket 9 along the vertical direction, and the top end of the connecting pipe 16 is communicated with the bottom of the charging basket 9, the cover is equipped with row material pipe 17 on the bottom of connecting pipe 16, arranges material pipe 17 and can dismantle with connecting pipe 16 and be connected, arranges to be equipped with the valve on the material pipe 17, and every n type frame 1 is equipped with a compression roller 18 towards the lower part of storage bucket 9 one side, and a pivot has been inserted in every compression roller 18, and the both ends of pivot are connected with a stabilizer blade fixed connection of place n type frame 1 through a connecting rod respectively, and the pivot rotates with the connecting rod to be connected.

The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 5, and the present embodiment further defines the connecting pipe 16 according to the first embodiment, in which an external thread is formed on an outer wall of a bottom end of the connecting pipe 16, an internal thread matched with the external thread is formed on an inner wall of a top end of the discharge pipe 17, and the connecting pipe 16 and the discharge pipe 17 are detachably connected by a thread. Other components and connection modes are the same as those of the first embodiment.

So set up, consider that fissured width is different, the operator can carry out the blowing through the row of selecting for use material pipe 17 of different pipe diameters, can improve the repair accuracy on the one hand, and on the other hand also can improve repair efficiency.

The third concrete implementation mode: the present embodiment is described with reference to fig. 1 to 5, and the present embodiment further defines the n-type frame 1 according to the second embodiment, and in the present embodiment, a handle is provided on the outer side of each leg of each n-type frame 1 along the length direction of the leg. Other components and connection modes are the same as those of the first embodiment.

So arranged, it is convenient to push and pull the n-type frame 1.

The fourth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 5, and is further limited to the sliding assembly according to the third embodiment, which includes two sliding ways 7 and a sliding plate 8, the two sliding ways 7 are arranged in parallel, and two slideways 7 are arranged on the two middle connecting beams 2 along the width direction of the main frame, two pulley blocks are symmetrically arranged at the bottom of the sliding plate 8 along the central line of the width direction of the sliding plate 8, each pulley block is arranged corresponding to one slideway 7, each pulley block is correspondingly arranged on one slideway 7, the sliding plate 8 is in sliding connection with the two slideways 7 through the two pulley blocks, a circular through hole is processed at the center of the sliding plate 8, the charging basket 9 wrapped with the resistance wire heating net 15 is embedded at the circular through hole on the sliding plate 8, and the stirring component is arranged on the upper surface of the sliding plate 8. Other components and connection modes are the same as those of the third embodiment.

In this embodiment, the two ends of the slideway 7 are provided with stoppers to prevent the slideway 7 from being pushed accidentally, and the bottom of the slideway 7 is coated with lubricating oil to increase the lubricity between the pulley block and the slideway and ensure that the sliding plate 8 is pushed smoothly.

The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1 to 5, and is further limited to the pulley block described in the fourth embodiment, and the pulley block in the present embodiment includes four sliding wheels, the four sliding wheels are equidistantly arranged along the length direction of the slideway 7, and each sliding wheel is fixedly connected to the bottom surface of the sliding plate 8. The other components and the connection mode are the same as those of the fourth embodiment.

The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1 to 5, and the present embodiment further defines the slide plate 8 according to the fifth embodiment, and in the present embodiment, one handle is fixed to each of both ends of the slide plate 8 extending in the longitudinal direction of the slide 7. The other components and the connection mode are the same as those of the fourth embodiment.

So arranged, it is convenient to push and pull the sliding plate 8.

The seventh embodiment: the present embodiment is described with reference to fig. 1 to 5, and is further limited to the stirring assembly described in the sixth embodiment, which includes four lifting cylinders 10, a top mounting plate 11, a motor 12, a coupling 13, and a stirring roller 14;

four lift cylinders 10 correspond the four corners department that sets up at the sliding plate 8 upper surface respectively along vertical direction, the bottom of every lift cylinder 10 and the upper surface fixed connection of sliding plate 8, top mounting panel 11 sets up the top at four lift cylinders 10, and the top fixed connection of piston rod in the lower surface of top mounting panel 11 and every lift cylinder 10, motor 12 inverts on the lower surface of top mounting panel 11, and the casing of motor 12 and the lower surface fixed connection of top mounting panel 11, the output shaft of motor 12 passes through shaft coupling 13 and links to each other with stirring roller 14, stirring roller 14 is located the storage bucket directly over. Other components and connection modes are the same as those of the sixth embodiment.

So set up, drive top mounting panel 11 and motor 12 through lift cylinder 10 and reciprocate, make to have the clearance between top mounting panel 11 and the storage bucket, be convenient for pour into the repair material into the storage bucket.

The specific implementation mode is eight: the present embodiment is described with reference to fig. 1 to 5, and the present embodiment further defines the stirring roller 14 according to the seventh embodiment, in which the stirring roller 14 includes a connecting shaft 141, a mounting plate 142, a main stirring rod 143, and N auxiliary stirring rods 144, the connection shaft 141 is provided at the center of the upper surface of the mounting plate 142 in the vertical direction, the bottom end of the connecting shaft 141 is fixedly connected with the upper surface of the mounting plate 142, the top end of the connecting shaft 141 is connected with the output shaft of the motor 12 through a coupler, the main stirring rod 143 is arranged at the center of the lower surface of the mounting plate 142 along the vertical direction, and the top end of the main stirring rod 143 is fixedly connected with the lower surface of the mounting plate 142, the N auxiliary stirring rods 144 are equidistantly arranged on the lower surface of the mounting plate 142 along the circumferential direction, and the top end of each auxiliary stirring rod 144 is fixedly connected with the lower surface of the mounting plate 142, and the length of the auxiliary stirring rod 144 is less than that of the main stirring rod 143. Other components and connection modes are the same as those of the fourth embodiment.

In this embodiment, the main stirring rod 143 and the auxiliary stirring rod 144 have the same composition, and are both composed of a rod body and a plurality of stirring columns, the plurality of stirring columns are spirally distributed on the outer circumferential surface of the rod body along the circumferential direction, the axis of each stirring column is perpendicular to the axis of the rod body, each stirring column is fixedly connected to the rod body, and the number N of the auxiliary stirring rods 144 ranges from 4 to 6.

The specific implementation method nine: the present embodiment is described with reference to fig. 1 to 5, and the present embodiment further defines the charging basket 9 according to the eighth embodiment, in which the charging basket 9 is a tapered basket, the tapered end is the bottom end of the charging basket 9, and the top end of the connecting pipe 16 is communicated with the tapered end in the charging basket 9. The other components and the connection mode are the same as those of the fourth embodiment.

The present invention has been disclosed in the above embodiments, but not limited to the present invention, and any person skilled in the art can make some changes or modifications to the equivalent embodiments without departing from the technical scope of the present invention, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments will still belong to the technical scope of the present invention.

Principle of operation

When the utility model is used, firstly, according to the first to ninth concrete implementation modes, all the components are connected together by the connection mode, the top mounting plate 11 is lifted by the lifting cylinder 10, the motor 12 and the stirring roller 14 which are positioned on the lower surface of the top mounting plate 11 are far away from the charging basket 9, at the moment, concrete materials consisting of polyurethane and sand can be injected into the charging basket 9, the top mounting plate 11 is lowered by the lifting cylinder 10, the stirring roller 14 enters the charging basket 9, the motor 12 and the resistance wire heating net 15 are powered by the storage battery 6, the resistance wire heating net 15 heats the charging basket 9, the stirring roller 14 is used for stirring the concrete materials in the charging basket 9 to prevent the concrete materials from solidifying, the valve on the discharging pipe 17 is opened, the concrete materials flow into cracks, two persons are needed to cooperate at the same time, one person pushes the main frame to move along the length direction of the cracks, the other person pushes or pulls the sliding plate 8 to adjust along the crack bending trend, the concrete entering the crack can be flattened by the compression roller 18 during movement, and the repairing effect is ensured.

Claims (9)

1. The utility model provides an utilize polyurethane to toughen concrete and restore device in road surface crack which characterized in that: the device comprises a main frame, a supporting plate (4), a storage battery mounting seat (5), a storage battery (6), a charging basket (9), a resistance wire heating net (15), a connecting pipe (16), a discharging pipe (17), two pressing rollers (18), a sliding assembly and a stirring assembly;

the main frame comprises two n-shaped frames (1), two middle connecting beams (2) and two top supporting beams (3); the two n-type frames (1) are oppositely arranged, the two middle connecting beams (2) are horizontally arranged between the two n-type frames (1), the two middle connecting beams (2) are arranged in parallel, one end of each middle connecting beam (2) is fixedly connected with the middle part of one supporting leg in one n-type frame (1), the two top supporting beams (3) are horizontally arranged between the two n-type frames (1), the two top supporting beams (3) are arranged in parallel, one end of each top supporting beam (3) is fixedly connected with the upper part of one supporting leg in one n-type frame (1), and a roller is arranged at the bottom of each supporting leg in each n-type frame (1);

the material barrel is characterized in that the supporting plate (4) is arranged on the two middle connecting beams (2), the supporting plate (4) is detachably connected with the upper surfaces of the two middle connecting beams (2), the storage battery mounting seat (5) is fixedly connected onto the upper surface of the supporting plate (4), the storage battery (6) is arranged in the storage battery mounting seat (5), the sliding assembly is arranged on one side of the supporting plate (4), the sliding assembly is arranged on the two middle connecting beams (2), the material barrel (9) is embedded in the sliding assembly, the stirring assembly is arranged on the upper surface of the sliding assembly, the stirring end of the stirring assembly is arranged right above the material barrel (9), the power input end of the stirring assembly is connected with the storage battery (6) through a lead, the outer side of the material barrel (9) is wrapped with a resistance wire heating net (15), the heating net (15) is connected with the storage battery (6) through a lead, the connecting pipe (16) is arranged at the bottom of the material barrel (9) along the vertical direction, and the top of connecting pipe (16) and storage bucket (9) bottom intercommunication setting, the cover is equipped with row material pipe (17) on the bottom of connecting pipe (16), row material pipe (17) can be dismantled with connecting pipe (16) and be connected, be equipped with the valve on arranging material pipe (17), every n type frame (1) is equipped with a compression roller (18) towards the lower part of storage bucket (9) one side, a pivot has been inserted in every compression roller (18), the both ends of pivot are respectively through a connecting rod and a stabilizer blade fixed connection of place n type frame (1), the pivot rotates with the connecting rod to be connected.

2. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 1, wherein: processing has the external screw thread on the outer wall of connecting pipe (16) bottom, processing has the internal thread with external screw thread complex on the inner wall on row material pipe (17) top, and connecting pipe (16) can be dismantled through the screw thread with row material pipe (17) and be connected.

3. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 2, wherein: and a handle is arranged on the outer side of each support leg in each n-shaped frame (1) along the length direction of the support leg.

4. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 3, wherein: the sliding assembly comprises two sliding ways (7) and a sliding plate (8), the two sliding ways (7) are arranged in parallel, the two sliding ways (7) are installed on the two middle connecting beams (2) along the width direction of the main frame, two pulley blocks are symmetrically arranged at the bottom of the sliding plate (8) along the center line of the width direction of the sliding plate (8), each pulley block is arranged corresponding to one sliding way (7), each pulley block is installed on one sliding way (7) correspondingly, the sliding plate (8) is connected with the two sliding ways (7) in a sliding mode through the two pulley blocks in a sliding mode, a circular through hole is machined in the center of the sliding plate (8), a charging basket (9) wrapped with a resistance wire heating net (15) is embedded in the circular through hole in the sliding plate (8), and the stirring assembly is installed on the upper surface of the sliding plate (8).

5. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 4, wherein: the pulley block comprises four sliding wheels, the four sliding wheels are arranged at equal intervals along the length direction of the slide way (7), and each sliding wheel is fixedly connected with the bottom surface of the sliding plate (8).

6. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 5, wherein: the two ends of the sliding plate (8) extending along the length direction of the slideway (7) are respectively and fixedly connected with a handle.

7. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 6, wherein: the stirring assembly comprises four lifting cylinders (10), a top mounting plate (11), a motor (12), a coupler (13) and stirring rollers (14);

four lift cylinders (10) correspond the four corners department that sets up at sliding plate (8) upper surface respectively along vertical direction, the bottom of every lift cylinder (10) is connected with the last fixed surface of sliding plate (8), top mounting panel (11) set up the top in four lift cylinders (10), and the lower surface of top mounting panel (11) and the top fixed connection of piston rod in every lift cylinder (10), motor (12) are invertd on the lower surface of top mounting panel (11), and the casing of motor (12) and the lower fixed surface of top mounting panel (11) are connected, the output shaft of motor (12) passes through shaft coupling (13) and links to each other with stirring roller (14), stirring roller (14) are located storage bucket (9) directly over.

8. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 7, wherein: the stirring roller (14) comprises a connecting shaft (141), a mounting plate (142), a main stirring rod (143) and N auxiliary stirring rods (144), the connecting shaft (141) is disposed at the center of the upper surface of the mounting plate (142) in the vertical direction, the bottom end of the connecting shaft (141) is fixedly connected with the upper surface of the mounting plate (142), the top end of the connecting shaft (141) is connected with an output shaft of the motor (12) through a coupler, the main stirring rod (143) is arranged at the center of the lower surface of the mounting plate (142) along the vertical direction, the top end of the main stirring rod (143) is fixedly connected with the lower surface of the mounting plate (142), the N auxiliary stirring rods (144) are equidistantly arranged on the lower surface of the mounting plate (142) along the circumferential direction, the top end of each auxiliary stirring rod (144) is fixedly connected with the lower surface of the mounting plate (142), and the length of each auxiliary stirring rod (144) is smaller than that of the main stirring rod (143).

9. The device for repairing pavement cracks by using the polyurethane toughened concrete as claimed in claim 8, wherein: the charging bucket (9) is a conical bucket, the conical end is the bottom end of the charging bucket (9), and the top end of the connecting pipe (16) is communicated with the conical end in the charging bucket (9).

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