Crack sealing machine for repairing road cracks

Abstract

The invention provides a crack sealing machine for road crack repair, the crack sealing machine comprises a crack sealing machine body and a leveling mechanism, the crack sealing machine body comprises a carrier loader, a storage box, a heating mechanism and a discharge mechanism, the discharge end of the discharge mechanism is rotatably arranged, and the leveling mechanism comprises a mounting rack, a compression roller assembly, a vibration mechanism and a scraper. In this way, the leveling mechanism can conduct leveling treatment on the pouring crack in real time, the flatness of a road is improved, traveling is facilitated, the pressing roller assembly can be movably adjusted in the vertical direction and can adapt to different pouring crack laying height requirements, and the application range is widened; the poured asphalt can be scraped flat for the first time through the scraping plate, so that convenience is provided for follow-up pressing roller leveling; the vibrating mechanism vibrates up and down, so that repeated rapping can be realized, and the compacting and leveling effects are further improved; and the angle of the discharging end of the discharging mechanism can be changed through rotation, so that the gap filling width is changed, the gap filling stability and accuracy are ensured, and different gap filling requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of road crack filling, and in particular to a crack filling machine for road crack repair. Background Art

[0002] Road cracks are one of the common diseases of highways and urban roads. If not repaired in time, the cracks will further expand, affecting the service life of the road and driving safety. Traditional road crack repair methods include using simple manual tools or semi-automatic equipment for crack filling treatment. These methods are inefficient and difficult to ensure the repair quality.

[0003] With the development of technology, various types of automatic crack filling equipment have emerged on the market, which can complete the road crack repair work more efficiently. Existing automatic crack filling machines usually include a container for heating asphalt, a discharging system, and a carrier vehicle. The repair purpose is achieved by injecting the heated asphalt material into the road cracks.

[0004] The automatic crack filling equipment in the prior art lacks an effective leveling device, resulting in an uneven road surface after filling, affecting the aesthetics and driving comfort, and requiring later leveling, with low efficiency. Many devices do not provide a flexible height adjustment function and cannot accurately adapt to cracks of different depths or widths, reducing the scope of application.

[0005] In view of this, it is necessary to propose a crack filling machine for road crack repair to solve or at least alleviate the above defects. Summary of the Invention

[0006] The main purpose of the present invention is to provide a crack filling machine for road crack repair to solve the problem that the automatic crack filling equipment in the prior art lacks a leveling device, resulting in an uneven road surface after filling and affecting driving.

[0007] To achieve the above object, the present invention provides a crack filling machine for road crack repair, including a crack filling machine body and a leveling mechanism, and the leveling mechanism is connected to one side of the crack filling machine body; wherein, The crack filling machine body includes a carrier vehicle, a storage tank, a heating mechanism, and a discharging mechanism. The heating mechanism is connected to the carrier vehicle, the heating mechanism has a heating chamber, the storage tank is connected to the heating mechanism and the bottom is placed inside the heating chamber, the top of the storage tank extends out of the heating mechanism, the discharging mechanism is connected to the side wall of the heating mechanism and is communicated with the storage tank, and the discharging end of the discharging mechanism is rotatably arranged; The leveling mechanism includes a mounting frame, a pressure roller assembly, a vibration mechanism, and a scraper. The mounting frame is connected to the side wall of the heating mechanism and is arranged at intervals along the longitudinal direction on one side of the discharging mechanism. The pressure roller assembly is connected to the mounting frame and is movably arranged vertically. A vibration chamber is formed in the pressure roller assembly, and the vibration mechanism is connected to the vibration chamber. The scraper is convexly connected to the pressure roller assembly along the longitudinal direction, and the bottom end of the scraper is flush with the bottom end of the pressure roller assembly.

[0008] Preferably, the pressure roller assembly includes an adjusting rod, a hanging bracket, and a pressure roller. A first chute is recessed in the mounting frame, and the adjusting rod is slidably connected to the first chute vertically. The hanging bracket is connected to the bottom of the adjusting rod, and the scraper is convexly connected to the bottom of the side wall of the adjusting rod along the longitudinal direction. The pressure roller is connected to the bottom of the hanging bracket and is rotatably arranged.

[0009] Preferably, a second chute is recessed at the bottom of the adjusting rod, and the top of the hanging bracket is elastically connected to the second chute through a spring.

[0010] Preferably, the pressure roller assembly further includes a lead screw and a handwheel. The bottom end of the lead screw penetrates through the mounting frame and extends into the first chute. A threaded hole is recessed at the top end of the adjusting rod, and the adjusting rod is threadedly connected to the bottom end of the lead screw. The handwheel is sleeved and connected to the top end of the lead screw.

[0011] Preferably, the vibration mechanism includes a driving motor and an eccentric wheel. The vibration chamber is formed in the hanging bracket, and both the driving motor and the eccentric wheel are connected to the vibration chamber, and the eccentric wheel is connected to the driving end of the driving motor.

[0012] Preferably, the scraper is in an arc shape curved towards the pressure roller.

[0013] Preferably, a shovel is convexly formed on the side of the hanging bracket away from the scraper downward. The side of the shovel facing the pressure roller is in an arc shape corresponding to the pressure roller, and the shovel is arranged in contact with the pressure roller.

[0014] Preferably, the discharging mechanism includes a discharging pipe, a discharging nozzle, and a locking bolt. The feeding end of the discharging pipe penetrates through the side wall of the heating mechanism and is communicated with the storage tank. The discharging nozzle is connected to the discharging end of the discharging pipe and is rotatably arranged horizontally. The locking bolt passes through the discharging pipe and abuts against the discharging nozzle to limit the rotation of the discharging nozzle.

[0015] Preferably, the discharging nozzle is in a flat tubular shape.

[0016] Preferably, the heating mechanism includes a heating box and a gas stove. The heating box is connected to the carrier vehicle. The heating chamber is provided inside the heating box. The storage box is connected to the heating box. The gas stove is built in the bottom of the heating box and is spaced from the bottom end of the storage box.

[0017] Compared with the prior art, the present invention has the following beneficial effects: A crack filling machine for road crack repair provided by the present invention includes a crack filling machine body and a leveling mechanism. The leveling mechanism is connected to one side of the crack filling machine body. The crack filling machine body includes a carrier vehicle, a storage box, a heating mechanism, and a discharging mechanism. The heating mechanism is connected to the carrier vehicle. The heating mechanism has a heating chamber. The storage box is connected to the heating mechanism and the bottom is placed inside the heating chamber. The top of the storage box extends out of the heating mechanism. The discharging mechanism is connected to the side wall of the heating mechanism and is communicated with the storage box. The discharging end of the discharging mechanism is rotatably arranged. The leveling mechanism includes a mounting frame, a pressing roller assembly, a vibrating mechanism, and a scraper. The mounting frame is connected to the side wall of the heating mechanism and is longitudinally spaced on one side of the discharging mechanism. The pressing roller assembly is connected to the mounting frame and is vertically movable. A vibrating chamber is provided in the pressing roller assembly. The vibrating mechanism is connected to the vibrating chamber. The scraper is longitudinally protruded and connected to the pressing roller assembly, and the bottom end of the scraper is flush with the bottom end of the pressing roller assembly. In this way, the leveling mechanism can level the crack filling in real time, improve the flatness of the road, and facilitate driving. The vertically movable adjustment of the pressing roller assembly can adapt to different laying height requirements of the crack filling, and improve the scope of application. The scraper can initially scrape the poured asphalt to facilitate the subsequent leveling by the pressing roller. The combined up and down vibration of the vibrating mechanism can repeatedly vibrate and beat to further improve the compaction and leveling effect. The discharging end of the discharging mechanism can change the angle by rotation, so as to change the filling width, ensure the stability and accuracy of the filling, and meet different crack filling requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 It is a plan schematic diagram of the overall structure in an embodiment of the present invention; Figure 3 It is a cross-sectional schematic diagram of the heating mechanism in an embodiment of the present invention; Figure 4 A three-dimensional schematic diagram of the leveling mechanism in an embodiment of the present invention; Figure 5 A cross-sectional schematic diagram of the leveling mechanism in an embodiment of the present invention; Figure 6 is Figure 5 A partial enlarged schematic diagram at position A in Figure 7 A cross-sectional schematic diagram of the discharging mechanism in an embodiment of the present invention.

[0020] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings.

[0021] Explanation of the reference numerals in the drawings: 10, caulking machine body; 110, carrier vehicle; 120, storage tank; 130, heating mechanism; 131, heating chamber; 132, heating box; 133, gas stove; 134, liquefied gas tank; 140, discharging mechanism; 141, discharging pipe; 142, discharging nozzle; 143, locking bolt; 20, leveling mechanism; 210, mounting frame; 211, first chute; 220, pressure roller assembly; 221, vibration chamber; 222, adjusting rod; 2221, second chute; 2222, threaded hole; 223, hanger; 224, pressure roller; 225, spring; 226, lead screw; 227, handwheel; 228, scraper; 230, vibration mechanism; 231, drive motor; 232, eccentric wheel; 240, scraper. Detailed implementation manners

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] Please refer to the attached Figure 1 - attached Figure 7 As shown in the accompanying drawings, a crack filling machine for road crack repair provided in an embodiment of the present invention includes a crack filling machine body 10 and a leveling mechanism 20, and the leveling mechanism 20 is connected to one side of the crack filling machine body 10. First of all, it should be noted that the longitudinal direction in this application refers to the traveling direction of the carrier vehicle 110; different from the existing automatic crack filling equipment lacking an effective leveling device, resulting in an uneven road surface after filling, affecting the aesthetics and driving comfort, and requiring subsequent leveling with low efficiency. Many devices do not provide a flexible height adjustment function and cannot accurately adapt to cracks of different depths or widths, reducing the scope of application. The present application solves the above defects in the prior art by providing a crack filling machine for road crack repair, specifically as follows: The crack filling machine body 10 includes a carrier vehicle 110, a storage tank 120, a heating mechanism 130, and a discharging mechanism 140. The heating mechanism 130 is connected to the carrier vehicle 110, and the heating mechanism 130 has a heating chamber 131. The storage tank 120 is connected to the heating mechanism 130 and its bottom is placed inside the heating chamber 131. The top of the storage tank 120 extends out of the heating mechanism 130. The discharging mechanism 140 is connected to the side wall of the heating mechanism 130 and is communicated with the storage tank 120, and the discharging end of the discharging mechanism 140 is rotatably arranged; the leveling mechanism 20 includes a mounting frame 210, a pressing roller assembly 220, a vibration mechanism 230, and a scraping plate 240. The mounting frame 210 is connected to the side wall of the heating mechanism 130 and is arranged at intervals along the longitudinal direction on one side of the discharging mechanism 140. The pressing roller assembly 220 is connected to the mounting frame 210 and is movably arranged vertically. A vibration chamber 221 is provided in the pressing roller assembly 220, and the vibration mechanism 230 is connected to the vibration chamber 221. The scraping plate 240 is convexly connected to the pressing roller assembly 220 along the longitudinal direction, and the bottom end of the scraping plate 240 is flush with the bottom end of the pressing roller assembly 220.

[0027] Specifically, the crack-sealing machine for road crack repair in this application includes a crack-sealing machine body 10 and a leveling mechanism 20. The crack-sealing machine body 10 is a device for crack-sealing. After heating asphalt, it is discharged to the crack for crack-sealing treatment. Specifically, it includes a carrier vehicle 110, a storage tank 120, a heating mechanism 130, and a discharging mechanism 140. The carrier vehicle 110 is the load-bearing main body. The storage tank 120 is used to store asphalt, and the heating mechanism 130 is used to heat the asphalt in the storage tank 120. Therefore, the storage tank 120 is connected to the heating mechanism 130. The heating mechanism 130 has a heating chamber 131 for the lower half of the storage tank 120 to be located in the heating chamber 131 for heating, and the top extends out of the heating mechanism 130 for adding asphalt. The discharging mechanism 140 is used to guide and discharge the heated asphalt for crack-sealing work. Therefore, the discharging mechanism 140 is connected to the side wall of the heating mechanism 130 and is directly communicated with the storage tank 120. It can be understood that a valve can be provided at the feeding end of the discharging mechanism 140 for easy opening and closing, and the discharging end of the discharging mechanism 140 is rotatably arranged in the horizontal direction so that the crack-sealing angle can be changed according to different crack-sealing situations to improve the adaptability of crack-sealing and meet the crack-sealing requirements of cracks with different widths. After crack-sealing, the leveling mechanism 20 is used for compaction and leveling.

[0028] Among them, the leveling mechanism 20 includes a mounting frame 210, a roller assembly 220, a vibration mechanism 230, and a scraper 240. The mounting frame 210 is used for installing the roller assembly 220 so that the roller assembly 220 can be installed on the crack-sealing machine body 10. When installed, the mounting frame 210 is longitudinally arranged on one side of the discharging mechanism 140, so that the two functional areas of discharging and leveling are close. That is, after pouring, it only needs to move a short distance to carry out compaction and leveling. The roller assembly 220 is used for flattening the crack-sealing. It is vertically movably connected to the mounting frame 210 to flexibly adjust the leveling height, so that the equipment can meet different crack-sealing and laying height requirements, greatly improving the applicable range of the equipment to cope with various road crack repair scenarios. The vibration mechanism 230 is used to generate vibration, so it is connected to the vibration chamber 221 opened in the roller assembly 220 to drive the entire roller assembly 220 to repeatedly vibrate the ground, thereby further compacting and leveling the freshly poured asphalt to better improve the crack-sealing effect and make the repaired road surface more flat and firm. The scraper 240 is used to initially scrape the poured asphalt to facilitate the subsequent leveling by the roller 224. Therefore, its bottom end needs to be flush with the bottom end of the roller assembly 220 so that the crack-sealing surface and the leveling surface are in the same plane.

[0029] As a preferred embodiment of the present invention, the press roll assembly 220 includes an adjusting rod 222, a hanging bracket 223, and a press roll 224. A first chute 211 is recessed in the mounting bracket 210. The adjusting rod 222 is slidably connected to the first chute 211 in the vertical direction. The hanging bracket 223 is connected to the bottom of the adjusting rod 222. The scraper 240 is longitudinally protrudingly connected to the bottom of the side wall of the adjusting rod 222. The press roll 224 is connected to the bottom of the hanging bracket 223 and is rotatably arranged.

[0030] It should be noted that the adjusting rod 222 is used to adjust the height of the press roll 224. It is slidably connected to the first chute 211 of the mounting bracket 210 in the vertical direction to drive the press roll 224 to move vertically for adjustment. The hanging bracket 223 is used for mounting the press roll 224, so that the press roll 224 is mounted at the bottom end of the adjusting rod 222 through the hanging bracket 223. The scraper 240 protrudes from the bottom of the side wall of the adjusting rod 222. In this way, when the adjusting rod 222 is adjusted vertically, it also drives the scraper 240 to be adjusted vertically, so as to ensure consistency with the press roll 224.

[0031] As a relatively preferred embodiment of the present invention, a second chute 2221 is recessed in the bottom of the adjusting rod 222. The top of the hanging bracket 223 is elastically connected to the second chute 2221 through a spring 225.

[0032] It should be noted that the top of the hanging bracket 223 can adapt to upward contraction when encountering a steep slope section through elastic connection, and can also adapt to a small part of deformation during leveling, so as to avoid rigid damage to the structure, improve the buffering performance of the overall structure and the self-adaptability of deformation; and the spring 225 can also cooperate with the vibration mechanism 230 to drive the hanging bracket 223 to vibrate up and down repeatedly in the vertical direction.

[0033] As a preferred embodiment of the present invention, the press roll assembly 220 further includes a lead screw 226 and a handwheel 227. The bottom end of the lead screw 226 penetrates through the mounting bracket 210 and extends into the first chute 211. A threaded hole 2222 is recessed in the top end of the adjusting rod 222. The adjusting rod 222 is threadedly connected to the bottom end of the lead screw 226. The handwheel 227 is sleeved and connected to the top end of the lead screw 226.

[0034] It is worth mentioning that the screw rod 226 is used to adjust the vertical position of the adjusting rod 222. The top end of the adjusting rod 222 is recessed to form a threaded hole 2222 for threaded connection with the bottom end of the screw rod 226. In this way, the vertical position of the adjusting rod 222 can be adjusted by tightening and loosening the screw rod 226. The handwheel 227 is convenient for the staff to operate, so that the height of the pressure roller 224 can be quickly adjusted without the aid of other tools, which greatly improves the convenience of equipment operation and improves work efficiency.

[0035] As a preferred embodiment of the present invention, the vibration mechanism 230 includes a drive motor 231 and an eccentric wheel 232, the vibration chamber 221 is formed in the hanger 223, the drive motor 231 and the eccentric wheel 232 are both connected to the vibration chamber 221, and the eccentric wheel 232 is connected to the driving end of the drive motor 231.

[0036] It is worth noting that the eccentric wheel 232 is driven to rotate by the driving motor 231, and the centrifugal force generated by the eccentric shaft will cause the eccentric wheel 232 to continuously change its center of gravity position during rotation. Since the eccentric wheel 232 is fixed on the motor shaft, the movement of its center of gravity is constrained, thereby generating periodic displacement, that is, repeated vibration. In this way, the ground is repeatedly vibrated through this vibration to further improve the grouting effect.

[0037] Furthermore, the scraper 240 is in an arc shape bent toward the pressure roller 224 .

[0038] It should be noted that the arc-shaped scraper 240 can prevent the scraper 240 from getting stuck, and the arc surface can be used to break free from the stuck state to improve the smoothness of scraping, which is beneficial to improving the overall leveling quality.

[0039] Furthermore, a scraper 228 is protruded downward on one side of the hanger 223 away from the scraper plate 240 , and the scraper 228 is in an arc shape corresponding to the pressure roller 224 on the side facing the pressure roller 224 , and the scraper 228 is arranged to fit the pressure roller 224 .

[0040] It should be understood that the asphalt adhered to the surface of the pressure roller 224 can be scraped off by the scraper 228 that is arranged in a close relationship. This can not only prevent the surface of the pressure roller 224 from being uneven due to the adhesion of asphalt, affecting the leveling effect, but also avoid asphalt waste and ensure that the grouting effect is not affected. At the same time, it is also beneficial to the maintenance of the equipment and extends the service life of the equipment. It is worth mentioning that the fitting here means that the scraper 228 is close to the surface of the pressure roller 224 on one side facing the pressure roller 224, and actually a small gap needs to be maintained to ensure the normal rotation of the pressure roller 224.

[0041] Further, the discharging mechanism 140 includes a discharging pipe 141, a discharging nozzle 142 and a locking bolt 143. The feeding end of the discharging pipe 141 penetrates through the side wall of the heating mechanism 130 and is communicated with the storage tank 120. The discharging nozzle 142 is connected to the discharging end of the discharging pipe 141 and is rotatably arranged in the horizontal direction. The locking bolt 143 passes through the discharging pipe 141 and abuts against the discharging nozzle 142 to limit the rotation of the discharging nozzle 142.

[0042] It should be noted that the heated asphalt flows out of the storage tank 120 through the discharging pipe 141 and is then poured through the discharging nozzle 142. The discharging nozzle 142 is connected to the discharging end of the discharging pipe 141 and is rotatably arranged in the horizontal direction. Thus, by rotating the discharging nozzle 142, its angle can be changed, and further the caulking width can be changed to meet the caulking requirements of cracks with different widths. The locking bolt 143 is used for limiting and fixing after adjusting the discharging angle of the discharging nozzle 142 to prevent the discharging nozzle 142 from skewing during the caulking process, thereby ensuring the stability and accuracy of the caulking width.

[0043] Further, the discharging nozzle 142 is in a flat tubular shape.

[0044] It should be noted that the flat tubular shape is more suitable for the width shape of the crack to improve the caulking efficiency.

[0045] Further, the heating mechanism 130 includes a heating box 132 and a gas stove 133. The heating box 132 is connected to the carrier vehicle 110. The heating box 132 has the heating chamber 131. The storage tank 120 is connected to the heating box 132. The gas stove 133 is built in the bottom of the heating box 132 and is spaced from the bottom end of the storage tank 120.

[0046] It can be understood that the heating chamber 131 in the heating box 132 can be used as a high-temperature heating environment. By introducing the liquefied gas tank 134 on the carrier vehicle 110, the heat generated by the combustion of liquefied gas in the gas stove 133 is stored in the heating chamber 131, and the asphalt in the storage tank 120 is heated by the continuous high temperature until the asphalt reaches the appropriate construction temperature to meet the fluidity requirements for road crack repair.

[0047] For the convenience of those skilled in the art to understand, the specific operation process is briefly described as follows: After heating the asphalt to the target temperature through the heating mechanism 130, rotate the discharging nozzle 142 according to the actual width of the road crack and adjust it to an appropriate angle to change the caulking width. After the adjustment is completed, tighten the locking bolt 143 on the outer side of the discharging pipe 141 to abut against the side wall of the discharging nozzle 142, so as to achieve a fixed effect; then rotate the handwheel 227 at the top of the lead screw 226. The handwheel 227 drives the lead screw 226 to rotate. Through the cooperation of the threaded hole 2222 of the adjusting rod 222 and the lead screw 226, the adjusting rod 222 will slide up and down along the first chute 211 until the pressing roller 224 is adjusted to an appropriate leveling height; then start to push the carrier vehicle 110, so that the caulking machine moves along the road crack. The heated asphalt in the storage tank 120 flows into the road crack through the discharging pipe 141 and the discharging nozzle 142. While caulking, the scraper 240 on the hanging frame 223 will move with the equipment to initially level the poured asphalt, which provides convenience for the subsequent leveling by the pressing roller 224. Then start the driving motor 231. The driving motor 231 drives the eccentric wheel 232 to rotate, so that the pressing roller 224 vibrates up and down. During the movement of the equipment, the vibrating pressing roller 224 repeatedly vibrates the ground to compact and level the just-poured asphalt, so as to further improve the caulking effect. Repeat the leveling until the target requirements are met.

[0048] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A road crack repairing machine, characterized in that: It includes a seam filling machine body and a leveling mechanism, wherein the leveling mechanism is connected to one side of the seam filling machine body; wherein, The main body of the seam sealing machine includes a carrier, a material storage box, a heating mechanism and a discharge mechanism, wherein the heating mechanism is connected to the carrier, the heating mechanism has a heating chamber, the material storage box is connected to the heating mechanism and the bottom is built into the heating chamber, the top of the material storage box extends out of the heating mechanism, the discharge mechanism is connected to the side wall of the heating mechanism and communicated with the material storage box, and the discharge end of the discharge mechanism is rotatably arranged; The leveling mechanism includes a mounting frame, a pressure roller assembly, a vibration mechanism and a scraper. The mounting frame is connected to the side wall of the heating mechanism and is arranged at a longitudinal interval on one side of the discharging mechanism. The pressure roller assembly is connected to the mounting frame and is movably arranged in the vertical direction. A vibration chamber is opened in the pressure roller assembly, and the vibration mechanism is connected to the vibration chamber. The scraper is convexly connected to the pressure roller assembly in the longitudinal direction, and the bottom end of the scraper is flush with the bottom end of the pressure roller assembly.

2. The road crack repairing machine according to claim 1, characterized in that: The pressure roller assembly includes an adjusting rod, a hanger and a pressure roller. A first slide groove is formed in a recess in the mounting frame. The adjusting rod is slidably connected to the first slide groove along the vertical direction. The hanger is connected to the bottom of the adjusting rod, and the scraper is convexly connected to the bottom of the side wall of the adjusting rod along the longitudinal direction. The pressure roller is connected to the bottom of the hanger and is rotatably arranged.

3. The road crack repairing machine according to claim 2, characterized in that: The bottom of the adjusting rod is recessed to form a second sliding groove, and the top of the hanger is elastically connected to the second sliding groove through a spring.

4. The road crack repairing machine according to claim 2, characterized in that: The pressure roller assembly also includes a screw rod and a handwheel. The bottom end of the screw rod passes through the mounting frame and extends into the first slide groove. The top end of the adjusting rod is recessed to form a threaded hole. The adjusting rod is connected to the bottom end of the screw rod by a thread. The handwheel is sleeved and connected to the top end of the screw rod.

5. The road crack repairing machine according to claim 2, characterized in that: The vibration mechanism comprises a driving motor and an eccentric wheel. The vibration chamber is formed in the hanger. The driving motor and the eccentric wheel are both connected to the vibration chamber, and the eccentric wheel is connected to the driving end of the driving motor.

6. The road crack repairing machine according to claim 2, characterized in that: The scraper is in an arc shape bent toward the pressure roller.

7. The road crack repairing machine according to claim 2, characterized in that: A scraper is formed on a side of the hanger away from the scraper and protrudes downwards. The side of the scraper facing the pressure roller is in an arc shape corresponding to the pressure roller, and the scraper is arranged in close contact with the pressure roller.

8. The road crack repairing machine according to claim 1, characterized in that: The discharge mechanism includes a discharge pipe, a discharge nozzle and a locking bolt. The feed end of the discharge pipe passes through the side wall of the heating mechanism and is connected to the storage box. The discharge nozzle is connected to the discharge end of the discharge pipe and is rotatable in the horizontal direction. The locking bolt passes through the discharge pipe and abuts against the discharge nozzle to limit the rotation of the discharge nozzle.

9. The road crack repairing machine according to claim 8, characterized in that: The feeding nozzle is in a flat tubular shape.

10. The road crack repairing machine according to claim 1, characterized in that: The heating mechanism includes a heating box and a gas stove. The heating box is connected to the carrier vehicle. The heating box has the heating chamber. The material storage box is connected to the heating box. The gas stove is built into the bottom of the heating box and is spaced apart from the bottom end of the material storage box.

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