CN109235199B

CN109235199B - Asphalt pavement curing agent dispensing device

Info

Publication number: CN109235199B
Application number: CN201811178754.0A
Authority: CN
Inventors: 韩焜焜; 韩晶晶; 方磊磊; 王超
Original assignee: Jiangsu Tonghe Asphalt Concrete Co ltd
Current assignee: Jiangsu Tonghe Asphalt Concrete Co.,Ltd.
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2020-12-08
Anticipated expiration: 2038-10-10
Also published as: CN109235199A

Abstract

The invention relates to a device for spreading a curing agent for an asphalt pavement, which effectively solves the problems of poor absorption effect and high labor intensity of the traditional curing agent spreader; the technical scheme includes that the hollow shaft can not rotate, a round pipe is sleeved on each hollow shaft, a roller is arranged on the outer side of each round pipe, a plurality of groups of brushes are evenly distributed on the periphery of the outer edge face of each roller, a spray head is arranged between every two groups of brushes, two discs are arranged in the middle of each hollow shaft, a rotating wheel is sleeved at each of two ends of each hollow shaft, a first chain wheel capable of moving back and forth and rotating along the rotating wheel is coaxially arranged on the inner side of each rotating wheel, a polished rod is fixed on the inner end face of each first chain wheel, the other end of the polished rod is fixedly connected with the discs, a second chain is arranged between the two first chain wheels, a winding wheel is arranged on the inner side of each second chain wheel, the second chain wheel can be driven to rotate intermittently by the rotation of the second chain wheel, and the intermittent rotation of the.

Description

Asphalt pavement curing agent dispensing device

Technical Field

The invention relates to the field of road maintenance equipment, in particular to a spreading device for an asphalt pavement maintenance agent.

Background

The asphalt pavement curing agent is a novel material for preventive curing of asphalt pavements, is mainly used for preventive curing in a sub-health state of the asphalt pavements, is sprayed on the surfaces of the asphalt pavements, recovers and enhances the original performance through infiltrating, activating, repairing and reducing aged asphalt, stops the aging of the asphalt, plays a role in comprehensive preventive curing, avoids further diffusion of road diseases, prolongs the service life of the roads, and has the effects of beautifying the roads and quickly finishing and renewing the roads.

The asphalt pavement curing agent has two application modes: one is that the high-pressure spray gun directly sprays the asphalt pavement curing agent on the pavement by pressurization, so that the spraying mode has small spraying amount and needs to be sprayed repeatedly; the absorption rate of the road surface is low during spraying, and pressurizing equipment is needed during spraying, so that the mobility is low during spraying, but the spraying speed is high, and the number of workers is small. The other method is to use a scraper or a roller brush to directly contact and paint the asphalt pavement, the method needs a large amount of workers and has high labor intensity and low efficiency, but the painting is uniform, the absorption rate of the asphalt pavement is high, and the maintenance effect is good, so that a construction device of the asphalt pavement maintenance agent is needed at the present stage, the labor intensity of the workers is reduced and the efficiency is improved on the premise of meeting the requirements of uniform painting and high absorption rate of the asphalt pavement.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the asphalt pavement curing agent spreading device, which effectively solves the problems of poor absorption effect and high labor intensity of the traditional curing agent spreading machine.

The technical proposal for solving the problems comprises two hollow shafts which are positioned on the same horizontal plane and are arranged side by side at intervals left and right, the hollow shafts can not rotate, each hollow shaft is sleeved with a round pipe which is coaxial with the hollow shaft and can rotate around the hollow shaft, two ends of the round pipe are provided with a baffle disc and a baffle disc, the hollow shaft and the circular tube form a closed cavity, a roller is concentrically fixed on the outer side of the circular tube, a plurality of groups of hairbrushes are uniformly distributed on the periphery of the outer edge surface of the roller, each group of hairbrushes are uniformly distributed at intervals along the axis direction of the roller, a spray head is arranged between every two groups of hairbrushes, the other end of the spray head is communicated with the closed cavity, two discs which can move in a reverse direction and reset are sleeved at the middle position of the hollow shaft, the outer edge surface of each disc can slide along the inner wall of the circular tube but cannot rotate, the inner edge surface can slide along the inner wall of the hollow shaft and can rotate, the spray heads can be opened through the reverse movement of the two;

the two ends of the hollow shaft are respectively sleeved with a rotating wheel, the inner side of each rotating wheel is coaxially provided with a first chain wheel which can move back and forth and can rotate along with the rotating wheel, the inner end surface of each first chain wheel is fixed with a polished rod, the other end of the polished rod penetrates through the baffle disc and is fixedly connected with a disc on the corresponding side of the baffle disc, a second chain wheel is arranged between the two first chain wheels on the same side, the two first chain wheels and the three chain wheels are connected through a chain, the outer side of the chain is provided with a transverse plate, the first chain wheel and the second chain wheel on the same side are both rotatably connected on the transverse plate, the inner side of each second chain wheel is provided with a winding wheel, the winding wheel can be intermittently driven to rotate by the rotation of the second chain wheel, the inner side of the winding wheel is fixed with a vertical plate, the left side and the right side of the winding wheel are, the other end of the rope is fixed on the winding wheel, and the rotation of the winding wheel pulls the two V-shaped structures to be opened through the rope and enables the transverse plate to move outwards.

The maintenance agent spraying device is novel in concept, ingenious in structure and high in practicability, the maintenance agent for the asphalt pavement is intermittently sprayed to the brushes, so that the brushes can be used for soaking enough maintenance agent at different speeds, the maintenance agent is more uniformly coated, the absorption of the maintenance agent is effectively promoted under the double-roller pressing of the two brushes, and the labor intensity is reduced.

Drawings

FIG. 1 is a front view of the present invention.

FIG. 2 is a left side sectional view of the hollow shaft, circular tube and roller fitting structure of the present invention.

FIG. 3 is a top sectional view of the present invention.

FIG. 4 is a partial enlarged view of the area B in FIG. 3 according to the present invention.

FIG. 5 is a front sectional view of the hollow shaft, circular tube and roller fitting structure of the present invention.

FIG. 6 is an enlarged view of a portion of the region A in the drawing.

FIG. 7 is a schematic view of the structure of the slave wheel cooperating with the first and second sprockets of the present invention.

FIG. 8 is a schematic view of the structure of the invention in which the long gear drives the incomplete gear to drive the reel to rotate.

FIG. 9 is a schematic view of the driving structure of the winding wheel according to the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As can be seen from the drawings 1 to 9, the invention comprises two hollow shafts 1 which are positioned on the same horizontal plane and are arranged side by side at intervals left and right, the hollow shafts 1 can not rotate, each hollow shaft 1 is sleeved with a round pipe 2 which is coaxial with and can rotate around the hollow shaft, two ends of the round pipe 2 are provided with baffle discs 3, the hollow shafts 1 and the round pipes 2 form a closed cavity, the outer side of the round pipe 2 is concentrically fixed with a roller 4, the outer edge surface of the roller 4 is uniformly distributed with a plurality of groups of brushes 5, each group of brushes 5 is uniformly distributed with a plurality of brushes 5 along the axial direction of the roller 4, a spray head 6 is arranged between each two groups of brushes 5, the other end of the spray head 6 is communicated with the closed cavity, the middle position of the hollow shaft 1 is sleeved with two discs 7 which can move back to back and can reset back, the outer edge surface of each disc 7 can slide with the inner wall, the back movement of the two discs 7 can open the spray head 6, and the spray head 6 is closed when the two discs are reset;

the two ends of the hollow shaft 1 are respectively sleeved with a rotating wheel 8, the inner side of each rotating wheel 8 is coaxially provided with a first chain wheel 9 which can move back and forth and can rotate along with the rotating wheel, a polished rod 10 is fixed on the inner end surface of each first chain wheel 9, the other end of the polished rod 10 penetrates through the baffle disc 3 and is fixedly connected with a disc 7 on the corresponding side of the baffle disc, a second chain wheel 11 is arranged between the two first chain wheels 9 on the same side and is connected with the three through a chain 12, a transverse plate 13 is arranged on the outer side of the chain 12, the first chain wheel 9 and the second chain wheel 11 on the same side are both rotatably connected on the transverse plate 13, the inner side of each second chain wheel 11 is provided with a winding wheel 14, the rotation of the second chain wheel 11 can intermittently drive the winding wheel 14 to rotate, a vertical plate 15 is fixed on the inner side of the winding wheel 14, two connecting rods 16 with one ends mutually hinged and forming a V-shaped structure are, a rope 17 is fixed on the V-shaped structure, the other end of the rope 17 is fixed on the winding wheel 14, and the rotation of the winding wheel 14 pulls the two V-shaped structures to be opened through the rope 17 and enables the transverse plate 13 to move outwards.

In order to realize uninterrupted feeding of the closed cavity, a storage box 18 is fixed above the two rollers 4, two connecting pipes 19 are respectively arranged at the front end and the rear end of the storage box 18, the other end of each connecting pipe 19 is communicated with the closed cavity at the corresponding side of the hollow shaft 1, and a check valve 20 flowing from the storage box 18 to the closed cavity is arranged on each connecting pipe 19.

In order to realize that the second chain wheel 11 can rotate and the intermittent winding wheel 14 can rotate, a first gear 21 is coaxially fixed on the inner side of the second chain wheel 11, a long gear 22 meshed with the first gear 21 is arranged below the first gear 21, an incomplete gear 23 coaxially fixed with the long gear 22 is arranged on the inner side of the long gear 22, a second gear 24 coaxially and fixedly installed with the winding wheel 14 is meshed above the incomplete gear 23, and the winding wheel 14 is driven to rotate intermittently through the meshing of the first gear 21, the long gear 22 and the incomplete teeth and the second gear 24.

In order to fix the two hollow shafts 1 and the storage box 18, a cross rod 25 is respectively arranged at the front end and the rear end of each of the two hollow shafts 1, the two cross rods 25 and the two hollow shafts 1 are sequentially connected end to form a rectangular frame, a support rod 26 is respectively fixed on the front end face and the rear end face of the storage box 18, and one end of the support rod 26 is fixed on the storage box 18 while the other end is fixed on the rectangular frame.

In order to realize that two discs 7 can reset, two discs 7 are arranged at intervals and a first tension spring 27 sleeved on the hollow shaft 1 is arranged between the two discs 7, two ends of the first tension spring 27 are respectively fixed on the inner end faces of the two discs 7, and the two discs 7 can reset in a back-to-back motion mode and in a reverse motion mode through the arrangement of the first tension spring 27.

In order to realize that shower nozzle 6 opens when two disc 7 dorsad moves, shower nozzle 6 closes during the reseing, the outside of shower nozzle 6 is equipped with a toper cover 28, the small circle face of toper cover 28 is equipped with a blind hole, the blind hole is arranged in to the outer end of shower nozzle 6, the position circumference equipartition that the blind hole pore wall is close to the bottom has the through-hole 29 of a plurality of slopes, the other end of through-hole 29 and the big disc intercommunication of toper cover 28, be connected through second extension spring 30 between toper cover 28 and the roller 4 outer fringe face, realize through setting up of toper cover 28 under the initial condition blind hole bottom and shower nozzle 6 contact and extrusion and obstruct the curing agent and spill, when disc 7 dorsad moves, the internal pressure of airtight cavity increases, toper cover 28 moves to the outside, the curing agent outwards sprays to brush 5 on from through-hole 29, realize the infiltration to brush 5.

In order to realize that the first chain wheels 9 can rotate along with the rotating wheels 8 and can move back and forth, an outer spline shaft 31 coaxial with the rotating wheels is fixed on the inner side of each rotating wheel 8, the inner diameter of the outer spline shaft 31 is larger than the outer diameter of the hollow shaft 1, an inner spline 32 matched with the outer spline shaft 31 is fixed in the inner edge surface of each first chain wheel 9, and the first chain wheels 9 can rotate along with the rotating wheels 8 and can move back and forth through the matching of the inner spline 32 and the outer spline shaft 31.

In order to realize that the rope 17 is uniformly separated from the winding wheel 14 when the V-shaped structure is expanded and contracted, the left side and the right side of each winding wheel 14 are respectively provided with a conduit 33, and the rope 17 penetrates through the conduits 33 to be connected with the winding wheel 14.

In order to realize the outer fringe face of

disc

7 and 2 interior fringe faces of pipe adherent slip but can not rotate, be equipped with the rectangular form slide rail that sets up along its axis direction on 2 interior fringe faces of pipe, be equipped with on the outer fringe face of disc 7 with slide rail matched with spout, realize the outer fringe face of

disc

7 and 2 interior fringe faces of pipe adherent slip but can not rotate through the cooperation of slide rail and spout.

In order to facilitate the traction of the device, a pull rod 34 is fixed on the outer side of each cross rod 25 through a pin shaft, the other ends of the two pull rods 34 are connected through a connecting rod 35, and the device can move back and forth by pulling the connecting rod 35.

The specific working process of the invention is as follows: this device adds the bituminous paving curing agent of capacity to storage case 18 in when using, guarantees that the bottom of storage case 18 is higher than pipe 2 to the bituminous paving curing agent that guarantees in the storage case 18 can flow to airtight cavity under normal liquid pressure, and guarantees to be full of bituminous paving curing agent in the pipe 2.

At the moment, the connecting rod 35 is pulled, the hollow shaft 1 is kept to be not rotated at the moment, the rotating wheel 8 sleeved on the hollow shaft 1 is contacted with the ground, therefore, the rotating wheel 8 is rotated under the action of friction force with the ground when the hollow shaft moves leftwards and rightwards, the diameter of the roller 4 is smaller than that of the rotating wheel 8, the diameter of a cylindrical structure formed by a plurality of brushes 5 on the roller 4 is larger than that of the rotating wheel 8, so that the brushes 5 are contacted with the ground and deform, thereby realizing effective contact with the ground, the rollers 4 can be effectively driven to rotate by the contact of the brushes 5 with the ground under the supporting action of the rotating wheel 8, the cylindrical structure formed by the plurality of brushes 5 is contacted with the ground, meanwhile, the rotating wheel 8 and the first chain wheel 9 are installed through an external spline shaft 31 and an external spline, a polished rod 10 is arranged between the first chain wheel 9 and the baffle disc 3 and the disc 7, and the, in the process, the roller 4 and the corresponding rotating wheel 8 keep synchronous rotation, and a radial rod can be arranged between the roller 4 and the circular tube 2 to ensure the fixed installation of the circular tube 2 and the roller 4.

When the device is pulled leftwards, the roller 4 and the rotating wheel 8 both rotate anticlockwise, at this time, the first chain wheels 9 connected with the internal spline 32 through the external spline shafts 31 also rotate anticlockwise synchronously, at this time, the chains 12 buckled on the two first chain wheels 9 on the same side rotate, the chains 12 rotate to drive the second chain wheels 11 to rotate, the second chain wheels 11 rotate to drive the first gears 21 fixed coaxially with the second chain wheels 21 to rotate, the rotation of the first gears 21 is meshed to drive the long gears 22 to rotate, the rotation of the long gears 22 drives the incomplete gears 23 installed coaxially with the long gears 22 to rotate, when the toothed parts of the incomplete gears 23 are meshed with the second gears 24, the second gears 24 rotate and drive the winding wheel 14 to rotate, the rotation of the winding wheel 14 can drive the ropes 17 wound on the winding wheel to tighten and realize the opening of the two V-shaped structures on the two sides of the winding wheel, and the opening and closing of the V-shaped structures are convenient to, the V font structure of reel 14 both sides should set up to the opening relative, V font structure's opening makes diaphragm 13 move to the outside, because first sprocket 9 and second sprocket 11 all rotate to be connected on diaphragm 13 this moment, consequently diaphragm 13's outside removal can drive first sprocket 9 and second sprocket 11 and all move to the outside, this in-process because first sprocket 9 inboard is equipped with internal spline 32, and the internal spline 32 cooperation is on external spline shaft 31, consequently realize its outside removal when first sprocket 9 is pivoted, simultaneously because first gear 21 meshes on long gear 22 consequently when first gear 21 follows second sprocket 11 and moves to the outside, first gear 21 can not break away from long gear 22.

The outside of the first chain wheels 9 on the two sides moves to drive the corresponding polished rods 10 to move outwards, the polished rods 10 on the two sides move outwards to enable the polished rods 10 on the two sides to drive the discs 7 on the two sides to move backwards, the first pressure springs are stretched and enable the first pressure springs to have rebounding trend and elastic potential energy due to the fact that the polished rods 10 move backwards, the two discs 7 in the same circular tube 2 extrude the asphalt pavement curing agent in the circular tube 2 along with the outward movement of the polished rods 10, the pressure in the sealed cavity is increased, when the pressure in the sealed cavity is increased to overcome the elasticity of the second tension spring 30, the conical sleeves 28 on the spray heads 6 are pushed open, the asphalt pavement curing agent passes through the spray heads 6, the blind holes and the through holes 29 and is sprayed onto the brushes 5, and then the brushes 5 are infiltrated, and the brushes 5 are filled.

Along with the rotation of the runner 8, a first chain wheel 9 and a second chain wheel 11. The first gear 21, the long gear 22 and the incomplete gear 23 can rotate continuously, when the toothless part of the incomplete gear 23 corresponds to the second gear 24, the incomplete gear 23 does not provide power for the second gear 24, the two disks 7 can be reset under the resetting action of the first tension spring 27, the pressure in the closed cavity can be gradually reduced in the resetting process of the two disks 7, the conical sleeve 28 is pressed on the sprayer 6 again under the action of the second tension spring 30 to realize the sealing of the sprayer 6, the asphalt pavement maintenance agent in the storage tank 18 is backfilled into the circular pipe 2 through the connecting pipe 19 with the one-way valve 20 to keep being filled with the circular pipe 2 in the resetting process of the two disks 7, meanwhile, the polished rod 10 is reset in the reverse direction through the resetting of the two disks 7, the first chain wheel 9 is reset through the reverse direction of the polished rod 10, the transverse plate 13 can move inwards through the resetting of the first chain wheel 9, at this point the V-shaped structure collapses allowing the cord 17 and reel 14 to be repositioned.

This device has following advantage than traditional dragging device:

1. set up runner 8 through 4 both sides of roller and realize runner 8 and roller 4 synchronous rotation, runner 8 provides the support for roller 4 and can satisfy brush 5 and drive roller 4 and rotate, can also effectively prevent simultaneously that roller 4 from pressing 5 deformations of brush, places two rollers 4 around can be effectual scribbles the effect even and reach the promotion road surface absorption curing agent with the curing agent.

2. First sprocket 9 in this device, roller 4 and runner 8 are synchronous rotation, for realizing that intermittent type nature soaks brush 5, it tightens up rope 17 and makes the V font structure open to rotate through the drive take-up pulley 14 at incomplete gear 23 intermittent type nature, thereby realize that disc 7 dorsad motion extrusion bituminous paving curing agent and make the curing agent spray on brush 5 through 6 intermittent type nature of shower nozzle, thereby the spraying speed that realizes curing agent on brush 5 follows the travelling speed of this device and cooperatees, guaranteed the even spraying that homoenergetic realized the curing agent under the arbitrary speed.

3. The device can change the extrusion amount of the curing agent at the same speed by changing the meshing ratio of the first gear 21 and the long gear 22 or the incomplete gear 23 and the second gear 24, so that the spraying amount of the curing agent is adjusted, and the device can adapt to different requirements of different spraying amounts of different pavement curing agents.

The maintenance agent spraying device is novel in concept, ingenious in structure and high in practicability, the maintenance agent for the asphalt pavement is intermittently sprayed to the brushes 5, so that the brushes 5 can be soaked with enough maintenance agent at different speeds, the maintenance agent is uniformly coated, the maintenance agent is effectively absorbed under the double-roller pressing of the two brushes 5, and the labor intensity is reduced.

Claims

1. A bituminous pavement curing agent spreading device comprises two hollow shafts (1) which are arranged on the same horizontal plane and are arranged side by side at intervals left and right, the hollow shafts (1) cannot rotate, and the bituminous pavement curing agent spreading device is characterized in that each hollow shaft (1) is sleeved with a round pipe (2) which is coaxial with the hollow shaft and can rotate around the hollow shaft, two ends of each round pipe (2) are provided with baffle discs (3), the hollow shafts (1) and the round pipes (2) form a closed cavity, a roller (4) is concentrically fixed on the outer side of each round pipe (2), a plurality of groups of brushes (5) are uniformly distributed on the outer edge surface of each roller (4) in a circumferential manner, a plurality of groups of brushes (5) are uniformly distributed along the axial direction of each roller (4) at intervals, a spray head (6) is arranged between each two groups of brushes (5), the other end of each spray head (6) is communicated with the closed cavity, two, the outer edge surface of each disk (7) can slide close to the wall with the inner wall of the circular tube (2) but cannot rotate, the inner edge surface slides close to the wall with the hollow shaft (1) and can rotate, the back movement of the two disks (7) can open the spray head (6), and the spray head (6) is closed during resetting;

the two ends of the hollow shaft (1) are respectively sleeved with a rotating wheel (8), the inner side of each rotating wheel (8) is coaxially provided with a first chain wheel (9) which can move back and forth and can rotate along with the rotating wheel, the inner end face of each first chain wheel (9) is fixed with a polished rod (10), the other end of each polished rod (10) penetrates through the baffle disc (3) and is fixedly connected with the disc (7) on the corresponding side of the baffle disc, a second chain wheel (11) is arranged between the two first chain wheels (9) on the same side and is connected with the first chain wheel and the second chain wheel through a chain (12), the outer side of the chain (12) is provided with a transverse plate (13), the first chain wheel (9) and the second chain wheel (11) on the same side are both rotatably connected on the transverse plate (13), the inner side of each second chain wheel (11) is provided with a winding wheel (14), the rotation of the second chain wheels (11) can intermittently drive the winding wheels, two connecting rods (16) with one ends hinged to each other and forming a V-shaped structure are respectively arranged on the left side and the right side of the winding wheel (14), one end of the V-shaped structure is hinged to the vertical plate (15) while the other end is hinged to the transverse plate (13), a rope (17) is fixed on the V-shaped structure, the other end of the rope (17) is fixed on the winding wheel (14), and the rotation of the winding wheel (14) pulls the two V-shaped structures to be opened through the rope (17) and enables the transverse plate (13) to move outwards.

2. The asphalt pavement curing agent spreading device according to claim 1, wherein a storage tank (18) is fixed above the two rollers (4), two connecting pipes (19) are respectively arranged at the front end and the rear end of the storage tank (18), the other end of each connecting pipe (19) is communicated with the closed cavity on the corresponding side through the hollow shaft (1), and a check valve (20) which flows from the storage tank (18) to the closed cavity is arranged on each connecting pipe (19).

3. An asphalt pavement curing agent spreading device according to claim 1, wherein a first gear (21) is coaxially fixed to the inside of the second sprocket (11), a long gear (22) is provided below the first gear (21) to be engaged therewith, an incomplete gear (23) is provided inside the long gear (22) to be coaxially fixed thereto, and a second gear (24) is coaxially fixedly mounted to the winding wheel (14) to be engaged above the incomplete gear (23).

4. The asphalt pavement curing agent spreading device according to claim 1, wherein a cross bar (25) is respectively disposed at the front end and the rear end of each of the two hollow shafts (1), the two cross bars (25) and the two hollow shafts (1) are sequentially connected end to form a rectangular frame, a support bar (26) is respectively fixed at the front end and the rear end of the storage tank (18), one end of the support bar (26) is fixed on the storage tank (18), and the other end is fixed on the rectangular frame.

5. An asphalt pavement curing agent spreading device according to claim 1, wherein the two disks (7) are arranged at intervals, a first tension spring (27) sleeved on the hollow shaft (1) is arranged between the two disks (7), and two ends of the first tension spring (27) are respectively fixed on the inner end surfaces of the two disks (7).

6. An asphalt pavement curing agent spreading device according to claim 1, wherein a conical sleeve (28) is arranged on the outer side of the spray head (6), a blind hole is arranged on the small circular surface of the conical sleeve (28), the outer end of the spray head (6) is arranged in the blind hole, a plurality of inclined through holes (29) are uniformly distributed on the circumference of the position of the wall of the blind hole close to the bottom, the other end of each through hole (29) is communicated with the large circular surface of the conical sleeve (28), and the conical sleeve (28) is connected with the outer edge surface of the roller (4) through a second tension spring (30).

7. An asphalt pavement curing agent spreading device according to claim 1, wherein an outer spline shaft (31) is fixed to the inner side of each of the rotating wheels (8) coaxially therewith, the outer spline shaft (31) has an inner diameter larger than the outer diameter of the hollow shaft (1), and an inner spline (32) engaged with the outer spline shaft (31) is fixed to the inner peripheral surface of each of the first sprockets (9).

8. An asphalt pavement curing agent spreading device according to claim 1, wherein each of said winding rollers (14) is provided with a conduit (33) on each of left and right sides thereof, and the rope (17) is connected to the winding roller (14) through the conduit (33).

9. An asphalt pavement curing agent spreading device according to claim 1, wherein the inner edge surface of the circular tube (2) is provided with an elongated slide rail arranged along the axial direction thereof, and the outer edge surface of the circular plate (7) is provided with a slide groove for engaging with the slide rail.

10. An asphalt pavement curing agent spreading device according to claim 4, wherein a pull rod (34) is fixed to the outer side of each cross bar (25) through a pin, and the other ends of the two pull rods (34) are connected through a connecting rod (35).