Maintenance device and maintenance method for expressway pavement

Abstract

The invention relates to the field of expressway management and maintenance, in particular to a maintenance device and method for an expressway pavement, and the maintenance device comprises a loading frame used for being connected with a maintenance vehicle, and the loading frame is connected with a pavement gap maintenance part and a power element; the pavement gap maintenance component comprises a loading seat used for being connected with the loading frame, an outer circular pipe is rotationally arranged on the loading seat, and a plurality of outer open holes are formed in the lower portion of the side portion of the outer circular pipe; and the outer circular tube is connected with a power element assembled on the loading seat. The power element drives the outer circular pipe to rotate, so that pavement gaps can be expanded; during gap expansion treatment, the top of the outer circular pipe is connected with a negative pressure fan, so that fine crushed materials and dust in the gaps of the road surface are synchronously sucked out during gap expansion, and the cleaning effect in the gaps is improved; and after seam expanding and cleaning are completed, the top of the outer circular pipe is controlled to be connected with a grouting machine, slurry used for filling the pavement seams is injected into the outer circular pipe through the grouting machine, and rapid filling and repairing of the pavement seams are achieved.

Description

Technical Field

[0001] The present invention relates to the field of highway management and maintenance, and more specifically, to a maintenance device and a maintenance method for highway pavement. Background Art

[0002] In the prior art, many highway pavements are all asphalt pavements, which are very comfortable to drive on. However, after the asphalt pavement is put into use, various pavement diseases will occur due to the influence of climate, traffic load, etc., among which the most common is cracks. These cracks are small at first, but with the invasion of surface rainwater and the action of traffic load, they will eventually seriously affect the performance of the asphalt pavement. Generally speaking, asphalt pavement cracks are divided into two categories based on their causes. The first type is load-type cracks. Simply put, under the action of vehicle loads, the bottom of the pavement structure layer is affected by tension and cracks are generated, and then the cracks gradually expand upward to the surface of the asphalt pavement. The second type is non-load-type cracks, which are mainly manifested by the shrinkage of the asphalt pavement at low temperatures, resulting in cracks.

[0003] In order to prevent cracks from occurring in asphalt pavements and affecting their use, measures are usually taken to promptly curb the occurrence and expansion of the disease when cracks have not yet appeared or when early cracks have just appeared. When the asphalt pavement crack disease is in the early and middle stages, the commonly used repair methods are grooving and grouting. In this method, the gaps need to be expanded and filled with slurry. During the repair, multiple equipment such as grooving equipment, cleaning equipment, and sealing equipment are often required to work in sequence, which is cumbersome to operate and has low grouting efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a maintenance device and a maintenance method for a highway pavement.

[0005] The technical solution adopted by the present invention is:

[0006] A maintenance device for a highway pavement comprises: a loading frame for connecting a maintenance vehicle, a pavement gap maintenance component and a power element being connected to the loading frame; the pavement gap maintenance component comprises: a loading seat for connecting the loading frame, an outer circular tube being rotatably arranged on the loading seat, and a plurality of outer openings being provided at the lower side of the outer circular tube; and the outer circular tube being connected to the power element assembled on the loading seat.

[0007] Furthermore, a plurality of external openings are evenly arranged from bottom to top on the lower side of the outer circular tube, and a lower bevel gear fixedly arranged on the top of the outer circular tube is connected to the power element; a middle circular tube unit is movably connected inside the outer circular tube to close or open the plurality of external openings, and the bottom of the middle circular tube unit can pass downward to the outside of the outer circular tube or be retracted upward into the inside of the outer circular tube; the top of the middle circular tube unit is connected to the loading seat and is connected to the power element.

[0008] Furthermore, the middle circular tube unit includes: a middle tube body for closing or opening multiple external openings, the middle tube body is movably connected in the outer circular tube, the top of the middle tube body is rotated on the middle frame plate, the middle frame plate and the loading seat are respectively connected to the upper and lower ends of the cylinder; the middle bevel gear on the middle tube body is connected to the power element.

[0009] Furthermore, a plurality of inclined crushing heads are evenly arranged around the bottom of the middle tube body.

[0010] Furthermore, multiple short blocks are evenly fixed around the outer side of the middle tube body, and the multiple short blocks are slidably arranged in multiple slide grooves on the side of the outer circular tube. One end of the multiple short blocks passes through the multiple slide grooves and is connected with multiple strips slidably arranged on the outer surface of the outer circular tube. The multiple strip covers are arranged on the outside of multiple external openings opened on the side of the outer circular tube. When the middle tube body opens or closes the multiple external openings on the inner side of the outer circular tube, the multiple strips are driven by the multiple short blocks to synchronously open or close the multiple external openings on the outer side of the outer circular tube; one side of the bottom of the multiple strips is provided with an inclined cutting edge.

[0011] Furthermore, the maintenance device for highway pavement also includes: an inner circular tube unit; the inner circular tube unit includes: an inner tube body movably connected in the middle tube body, a conical drilling head at the bottom of the inner tube body can penetrate downward to the outside of the middle tube body or be retracted into the inside of the middle tube body; the top of the inner tube body is rotated on the upper frame plate, the upper frame plate and the loading seat are respectively connected to the upper and lower ends of the cylinder two, and the upper bevel gear on the inner tube body is connected to the power element; a plurality of inner openings are evenly arranged from bottom to top at the lower side of the inner tube body, and the plurality of inner openings can be opened or closed when the middle tube body slides relatively on the inner tube body; a joint pipe for connecting a negative pressure fan or a grouting machine is rotated on the top of the inner tube body.

[0012] Furthermore, the power element includes: a motor installed on a loading seat, a pulley of the motor is connected to a pulley fixed on a worm gear through a belt, the bottom of the worm gear is rotated in a mounting hole on the upper surface of the loading seat, the worm gear is meshed and connected with a lower worm wheel, a middle worm wheel and an upper worm wheel from bottom to top in sequence, the lower worm wheel and bevel gear one are respectively fixed at both ends of the lower wheel shaft, bevel gear one meshes with the lower bevel gear, and the lower wheel shaft is rotated on a lower bracket on the loading seat; the middle worm wheel and bevel gear two are respectively fixed at both ends of the middle wheel shaft, the middle wheel shaft is rotated on the middle frame plate, bevel gear two meshes with the middle bevel gear; the upper worm wheel and bevel gear three are respectively fixed at both ends of the upper wheel shaft, the upper wheel shaft is rotated on the upper frame plate, and bevel gear three meshes with the upper bevel gear.

[0013] Furthermore, the front and rear ends of the loading seat are slidably arranged on the inner sides of the front end plate and the rear end plate of the loading frame through two horizontal open grooves; the left and right ends of the loading seat are respectively connected to the left end plate and the right end plate of the loading frame through multiple tensioning springs; the loading seat is threadedly connected to a fixed screw rod, which is inserted into the fixed through hole of the rear end plate of the loading frame.

[0014] Furthermore, the loading seat is slidably connected to the middle part of the vertical sliding body, the clamping block on the top of the vertical sliding body is clamped on the upper surface of the loading seat, and a spring element is connected between the bottom cover plate of the vertical sliding body and the lower surface of the loading seat; a rotating sleeve is rotatably arranged on the cover plate, and the outer circular tube and multiple strips are slidably arranged in the adaptation hole of the rotating sleeve.

[0015] The maintenance method is applied to the above-mentioned maintenance device for highway pavement, and is characterized in that the method comprises the following steps:

[0016] Install the loading rack on the maintenance vehicle;

[0017] Control the maintenance vehicle to drive the road surface gap maintenance component on the loading frame to move to the road surface gap;

[0018] The outer tube is controlled to be gradually inserted into the road surface gap, and the power element is started, so that the power element drives the outer tube to rotate to expand the road surface gap;

[0019] The top of the outer circular tube is controlled to be connected to the negative pressure fan to suck out the fine debris and dust in the gaps of the road surface;

[0020] The top of the outer circular tube is controlled to be connected to a grouting machine, and slurry for filling the road surface gaps is injected into the outer circular tube through the grouting machine. The slurry is filled into the road surface gaps through the bottom opening of the outer circular tube and multiple external openings to repair the road surface gaps.

[0021] It can be seen from the above scheme that the beneficial effects of the present invention are:

[0022] The present invention provides a maintenance device and maintenance method for a highway pavement. After an outer circular tube is controlled to be gradually inserted into a pavement gap, a power element drives the outer circular tube to rotate, so that the pavement gap can be expanded. During the expansion process, the top of the outer circular tube is connected to a negative pressure fan, so that fine particles and dust in the pavement gap are sucked out synchronously during the expansion, thereby improving the cleaning effect in the gap. After the expansion and cleaning are completed, the top of the outer circular tube is controlled to be connected to a grouting machine, and slurry for filling the pavement gap is injected into the outer circular tube through the grouting machine. The slurry is filled into the pavement gap through an opening at the bottom of the outer circular tube and a plurality of external openings, thereby realizing rapid filling and repair of the pavement gap, and the maintenance and repair efficiency is high and the effect is good.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 Schematic diagram of the maintenance device provided in the embodiment of the present invention Figure 1 ;

[0026] Figure 2 Schematic diagram of the maintenance device provided in the embodiment of the present invention Figure 2 ;

[0027] Figure 3 A cross-sectional view of a maintenance device provided by an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the structure of a loading rack provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the structure of a pavement gap maintenance component provided by an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the structure of a power element provided by an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of the structure of a loading base provided by an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of the structure of an outer circular tube provided in an embodiment of the present invention;

[0033] Fig. 9 A schematic diagram of the structure of a medium circular tube unit provided in an embodiment of the present invention;

[0034] Fig.10 A schematic diagram of the structure of an inner circular tube unit provided in an embodiment of the present invention;

[0035] Fig.11 A partial cross-sectional view of a pavement gap maintenance component provided in an embodiment of the present invention.

[0036] Icons: loading frame 1; pavement gap maintenance component 2; power element 3; motor 301; worm 302; lower worm wheel 303; middle worm wheel 304; upper worm wheel 305; bevel gear one 306; bevel gear two 307; bevel gear three 308; loading seat 4; tensioning spring 401; fixed screw 402; vertical slide 403; spring element 404; cover plate 405; rotating sleeve 406; outer circular tube 5; outer opening 501; lower bevel gear 502; middle circular tube unit 6; middle tube body 601; middle frame plate 602; cylinder one 603; middle bevel gear 604; crushing head 605; short block 606; strip plate 607; inclined cutting edge 608; inner circular tube unit 7; inner tube body 701; conical drilling head 702; upper frame plate 703; cylinder two 704; upper bevel gear 705; inner opening 706. DETAILED DESCRIPTION

[0037] In order to clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention, it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0039] See also Figure 1-11 The present invention provides a maintenance device for a highway pavement, comprising: a loading frame 1 for connecting a maintenance vehicle, a pavement gap maintenance component 2 and a power element 3 being connected to the loading frame 1; the pavement gap maintenance component 2 comprising: a loading seat 4 for connecting the loading frame 1, an outer circular tube 5 being rotated on the loading seat 4, and a plurality of outer openings 501 being provided at the lower side of the outer circular tube 5; the outer circular tube 5 is connected to the power element 3 assembled on the loading seat 4.

[0040] The working principle and technical effects of the above technical solution are as follows:

[0041] The present invention is a maintenance device for highway pavement, which is mainly used for repairing and maintaining pavement gaps. During maintenance, the loading frame 1 is first installed on the mechanical arm of the maintenance vehicle, and then the maintenance vehicle is controlled to drive the pavement gap maintenance component 2 on the loading frame 1 to move to the pavement gap. Under normal conditions, the gap is small, and the mechanical arm of the maintenance vehicle controls the outer tube 5 to gradually insert downward into the pavement gap, and starts the power element 3, which drives the outer tube 5 to rotate, so that the outer tube 5 is gradually inserted downward into the pavement gap in the rotating state, thereby reducing the resistance during insertion and being able to improve the pavement quality. The gap is drilled and expanded to improve the expansion effect; when expanding the gap, the top of the outer tube 5 can be connected to the negative pressure fan to suck out the fine debris and dust in the road surface gap, and there is no need to use a separate cleaning equipment for cleaning, thereby improving the cleaning effect in the gap; after the expansion and cleaning are completed, the top of the outer tube 5 is controlled to be connected to the grouting machine, and the grouting machine is used to inject slurry for filling the road surface gap into the outer tube 5. The slurry is filled into the road surface gap through the bottom opening of the outer tube 5 and multiple external openings 501, so as to repair the road surface gap, realize rapid filling and repair of the road surface gap, and have high maintenance and repair efficiency and good effect.

[0042] A plurality of external openings 501 are uniformly arranged from bottom to top at the lower side of the outer circular tube 5, and a lower bevel gear 502 fixedly arranged on the top of the outer circular tube 5 is connected to the power element 3; a middle circular tube unit 6 for closing or opening the plurality of external openings 501 is movably connected inside the outer circular tube 5, and the bottom of the middle circular tube unit 6 can pass downward to the outside of the outer circular tube 5 or be retracted upward into the inside of the outer circular tube 5; the top of the middle circular tube unit 6 is connected to the loading seat 4 and is connected to the power element 3; the middle circular tube unit 6 comprises: a middle tube body 601 for closing or opening the plurality of external openings 501, the middle tube body 601 is movably connected inside the outer circular tube 5, the top of the middle tube body 601 is rotated on the middle frame plate 602, the middle frame plate 602 and the loading seat 4 are respectively connected to the upper and lower ends of the cylinder 1 603; the middle bevel gear 604 on the middle tube body 601 is connected to the power element 3; a plurality of inclined crushing heads 605 are uniformly arranged around the bottom of the middle tube body 601.

[0043] The working principle and technical effects of the above technical solution are as follows:

[0044] In a maintenance device for a highway road surface of the present invention, after the power element 3 is started, the lower bevel gear 502 can be driven to rotate. When the lower bevel gear 502 rotates, it drives the outer cylindrical tube 5 coaxial therewith to rotate, so that the outer cylindrical tube 5 is gradually inserted into the road surface gap in the rotating state, and efficient seam expansion processing is achieved. A middle cylindrical tube unit 6 for closing or opening a plurality of outer openings 501 is movably connected in the outer cylindrical tube 5. The middle tube body 601 in the middle cylindrical tube unit 6 can rotate in the outer cylindrical tube 5, and can also slide in the up and down directions in the outer cylindrical tube 5. When it is necessary to open a plurality of outer openings 501, the cylinder 1 603 is opened, and the cylinder 1 603 drives the middle tube body 601 to move upward through the middle frame plate 602, so that the bottom of the middle tube body 601 is upwardly retracted into the outer cylindrical tube 5, and the closure of the outer openings 501 is gradually released. When it is necessary to close the outer openings 501, the cylinder 1 603 is opened. The cylinder 1 603 drives the middle tube body 601 to move downward through the middle frame plate 602 so that the middle tube body 601 closes the outer opening 501. In the process of seam expansion, since the diameter of the middle tube body 601 is smaller than the diameter of the outer circular tube 5, the middle tube body 601 can be controlled to extend downward to the bottom of the outer circular tube 5 and first contact the road surface gap. The middle bevel gear 604 on the middle tube body 601 is connected to the power element 3, so that the power element 3 drives the middle bevel gear 604 to rotate, thereby controlling the middle tube body 601 to drive the crushing head 605 at the bottom thereof to rotate, effectively crushing the road surface at the gap and improving the seam expansion effect. The cylinder 1 603 can drive the middle tube body 601 to reciprocate in the upper and lower directions in the outer circular tube 5 through the middle frame plate 602, so as to realize the intermittent contact and seam expansion treatment between the middle tube body 601 and the road surface gap, and generate intermittent downward pressure, which is more conducive to improving the seam expansion effect.

[0045] A plurality of short blocks 606 are evenly fixed around the outer side of the middle tube body 601, and the plurality of short blocks 606 are slidably arranged in a plurality of slide grooves on the side of the outer circular tube 5. One end of the plurality of short blocks 606 passes through the plurality of slide grooves and is connected with a plurality of strip plates 607 slidably arranged on the outer tube surface of the outer circular tube 5. The plurality of strip plates 607 are covered on the outer side of a plurality of external openings 501 opened on the side of the outer circular tube 5. When the middle tube body 601 opens or closes the plurality of external openings 501 on the inner side of the outer circular tube 5, the plurality of strip plates 607 are driven by the plurality of short blocks 606 to synchronously open or close the plurality of external openings 501 on the outer side of the outer circular tube 5; an inclined cutting edge 608 is arranged on one side of the bottom of the plurality of strip plates 607.

[0046] The working principle and technical effects of the above technical solution are as follows:

[0047] In a maintenance device for a highway road surface of the present invention, when the middle tube body 601 moves up and down, it can drive multiple short blocks 606 to move in multiple chutes, thereby driving multiple strips 607 slidably arranged on the outer tube surface of the outer cylindrical tube 5 to move, and the multiple strips 607 always remain in a state of blocking the outer sides of the multiple chutes, preventing fine debris in the gap of the road surface from entering between the middle tube body 601 and the outer cylindrical tube 5 through the multiple chutes, resulting in an obstruction that affects the relative movement of the two; the middle tube body 601 and the multiple strips 607 are relatively blocked on both the inside and outside of the multiple outer openings 501 On the other hand, the stability of the opening and closing state of the outer opening 501 is maintained, and when the seam is expanded, the multiple strips 607 located on the outside of the outer circular tube 5 can cut and crush the gap. One side of the bottom of the multiple strips 607 is provided with an inclined cutting edge 608, which is more conducive to improving the seam expansion effect. In addition, when the middle tube body 601 moves up and down, it can also drive the multiple strips 607 to move, constantly changing the contact position of the multiple strips 607 and the road surface gap, and initially drilling through the multiple strips 607. The multiple strips 607 are made of cemented carbide, with high strength and good stability.

[0048] The maintenance device for highway pavement described herein also includes: an inner tube unit 7; the inner tube unit 7 includes: an inner tube body 701 movably connected to the middle tube body 601, a conical drilling head 702 at the bottom of the inner tube body 701 can penetrate downward to the outside of the middle tube body 601 or be retracted into the inside of the middle tube body 601; the top of the inner tube body 701 is rotated on an upper frame plate 703, the upper frame plate 703 and the loading seat 4 are respectively connected to the upper and lower ends of the cylinder 2 704, and the upper bevel gear 705 on the inner tube body 701 is connected to the power element 3; a plurality of inner openings 706 are uniformly arranged around the lower side of the inner tube body 701 from bottom to top, and the plurality of inner openings 706 can be opened or closed when the middle tube body 601 slides relatively on the inner tube body 701; a joint pipe for connecting a negative pressure fan or a grouting machine is rotated on the top of the inner tube body 701.

[0049] The working principle and technical effects of the above technical solution are as follows:

[0050] In a maintenance device for a highway pavement of the present invention, an inner tube body 701 is movably connected in a middle tube body 601, and the inner tube body 701 can rotate around its own axis in the middle tube body 601, and can also slide in the up-and-down direction in the middle tube body 601, and the actual position can be adjusted according to actual needs. After the power element 3 is started, the upper bevel gear 705 can be driven to rotate, thereby driving the inner tube body 701 to rotate through the upper bevel gear 705, so as to control the inner tube body 701 to rotate around its own axis in the middle tube body 601, and the upper frame plate 703 and the loading seat 4 are respectively connected to the upper and lower ends of the cylinder 2 704, and after the cylinder 2 704 is started, the inner tube body 701 can be driven by the upper frame plate 703 to slide in the up-and-down direction in the middle tube body 601, and the inner tube body The conical drilling head 702 at the bottom of 701 can penetrate downward to the outside of the middle tube body 601. When expanding the seam, the inner tube body 701 with the smallest diameter can be controlled to extend below the middle tube body 601 and the outer tube 5. The conical drilling head 702 at the bottom of the inner tube body 701 first contacts the gap, and gradually controls the inner tube body 701, the middle tube body 601 and the outer tube 5 to contact the gap in turn, so as to achieve intermittent expansion of the gap, which is conducive to ensuring the seam expansion effect, and can reduce the problems of large seam expansion obstruction and large damage to the road surface near the gap when the seam is expanded directly through the outer tube 5 with a larger diameter, and reduce the impact on the road surface in a good state during road surface gap repair and maintenance; a plurality of inner openings 706 are evenly arranged around the lower side of the inner tube body 701 from bottom to top, and the middle tube 5 is connected to the inner tube body 701. When the middle tube body 601 slides relatively on the inner tube body 701, the multiple inner openings 706 can be opened or closed. The multiple outer openings 501 and the multiple inner openings 706 can be controlled by the middle tube body 601. When the inner tube body 701 with the multiple inner openings 706 is controlled to first penetrate into the road surface gap for seam expansion, the middle tube body 601 is initially controlled to close the multiple inner openings 706. When the seam is expanded to a certain extent, the middle tube body 601 is controlled to gradually release the blockage of the multiple inner openings 706, and the negative pressure fan or negative pressure pump device connected to the inner tube body 701 is turned on, so that the fine crushed materials generated during the seam expansion and the fine crushed materials in the road surface gap are extracted through the multiple inner openings 706 while the seam is expanded; when the seam is expanded to a preset size, , the inner tube body 701 is put into the middle tube body 601, and after the middle tube body 601 is put into the outer tube 5, when the inner wall of the gap is rotated and polished flat by the outer tube 5, the middle tube body 601 is controlled to release the blocking of the multiple outer openings 501 and the multiple inner openings 706, and the bottom surface of the inner tube body 701 is made to be the same or similar in height to the bottom surface of the outer tube 5. At this time, the negative pressure fan or negative pressure pump device is turned on, and the fine crushed materials at the bottom of the gap can enter the multiple inner openings 706 through the suction port formed by the inner tube body 701 and the bottom of the outer tube 5. The fine crushed materials generated when the side of the gap is polished flat can enter the suction port through the multiple outer openings 501, and then enter the multiple inner openings 706, and finally be discharged to the outside of the inner tube body 701, forming a variety of working modes;

[0051] At the same time, when the joint pipe at the top of the inner tube body 701 is connected to the grouting machine, the position and range of the slurry output can be selected according to the actual situation. When it is necessary to control the slurry to be ejected only from the side, that is, when the slurry is controlled to be output only through the multiple inner openings 706, the inner tube body 701 is controlled to extend downward to below the middle tube body 601 and the outer tube 5, and the middle tube body 601 is controlled to be blocked in the multiple outer openings 501 of the outer tube 5. At this time, the slurry can only be output through the multiple inner openings 706 extending from the inner tube body 701 to the bottom; when the slurry needs to be ejected from the bottom and the side at the same time, the inner tube body 701 is controlled to be retracted into the middle tube body 601. After the middle tube body 601 is retracted into the outer circular tube 5, the middle tube body 601 is controlled to slide upward to release the blockage of the multiple outer openings 501 and the multiple inner openings 706. At this time, the slurry can enter the inner tube body 701 and the discharge port formed at the bottom of the outer circular tube 5 (the discharge port is the suction port, and the name is different under different usage states) through the inner tube body 701, and be discharged downward through the discharge port. At the same time, the slurry can also be discharged at the side through the multiple outer openings 501, which meets the use needs in different situations. It is particularly suitable for use when first spraying various coatings or protective layers and then spraying concrete slurry or asphalt slurry, which can meet the use needs of various situations.

[0052] The power element 3 includes: a motor 301 mounted on the loading seat 4, a pulley of the motor 301 is connected to a pulley on the worm 302 through a belt connection, the bottom of the worm 302 is rotated in the mounting hole on the upper surface of the loading seat 4, the worm 302 is meshed and connected with the lower worm wheel 303, the middle worm wheel 304 and the upper worm wheel 305 from bottom to top, the lower worm wheel 303 and the bevel gear 1 306 are respectively fixed at both ends of the lower wheel shaft, the bevel gear 1 306 meshes with the lower bevel gear 502, and the lower wheel shaft is rotated on the lower bracket on the loading seat 4; the middle worm wheel 304 and the bevel gear 2 307 are respectively fixed at both ends of the middle wheel shaft, the middle wheel shaft is rotated on the middle frame plate 602, the bevel gear 2 307 meshes with the middle bevel gear 604; the upper worm wheel 305 and the bevel gear 3 308 are respectively fixed at both ends of the upper wheel shaft, the upper wheel shaft is rotated on the upper frame plate 703, and the bevel gear 3 308 meshes with the upper bevel gear 705.

[0053] After the motor 301 is started, the worm 302 can be driven to rotate through the cooperation of the belt and the two pulleys. When the worm 302 rotates, it meshes with the lower worm wheel 303, the middle worm wheel 304 and the upper worm wheel 305 to rotate. When the lower worm wheel 303 rotates, the bevel gear 1 306 is driven to rotate through the lower wheel shaft. The bevel gear 1 306 meshes with the lower bevel gear 502 to rotate, thereby realizing the rotation control of the outer tube 5. When the middle worm wheel 304 rotates, the bevel gear 2 307 is driven to rotate through the middle wheel shaft. The bevel gear 2 307 meshes with the middle bevel gear 502. The gear 604 rotates to realize the rotation control of the middle tube body 601. When the upper worm wheel 305 rotates, the bevel gear three 308 is driven to rotate through the upper wheel shaft. The bevel gear three 308 engages with the upper bevel gear 705 to rotate, thereby realizing the rotation control of the inner tube body 701. Due to the structural setting of the worm wheel and the worm, when the inner tube body 701, the middle tube body 601 and the outer tube 5 slide relatively, the lower worm wheel 303, the middle worm wheel 304 and the upper worm wheel 305 roll on the worm 302 without affecting the transmission effect.

[0054] The front and rear ends of the loading seat 4 are slidably arranged on the inner sides of the front end plate and the rear end plate of the loading frame 1 through two horizontal open grooves; the left and right ends of the loading seat 4 are respectively connected to the left end plate and the right end plate of the loading frame 1 through multiple tensioning springs 401; the loading seat 4 is threadedly connected with a fixed screw rod 402, and the fixed screw rod 402 is inserted into the fixed through hole of the rear end plate of the loading frame 1. When the fixed-point screw 402 is inserted into the fixed-point through-hole of the rear end plate of the loading frame 1, the relative position of the loading seat 4 and the loading frame 1 is fixed. At this time, the expansion position of the road surface gap maintenance component 2 can only be adjusted by the control of the maintenance vehicle. After controlling the fixed-point screw 402 to disengage from the fixed-point through-hole of the rear end plate of the loading frame 1, the outer cylindrical tube 5 or the middle tube body 601 or the inner tube body 701 is inserted into the road surface gap. The outer cylindrical tube 5 or the middle tube body 601 or the inner tube body 701 can change the movement path according to the position of the road surface gap, and drive the loading seat 4 to slide and adjust in the left and right directions on the loading frame 1, automatically follow the gap for expansion processing, improve the expansion efficiency, and reduce the problems of inaccurate expansion position caused by misoperation. When the loading seat 4 slides and adjusts in the left and right directions on the loading frame 1, the multiple tensioning springs 401 on the side are compressed or stretched, and the multiple tensioning springs 401 play the role of tensioning limit.

[0055] The loading seat 4 is slidably connected to the middle part of the vertical slide body 403, the block on the top of the vertical slide body 403 is clamped on the upper surface of the loading seat 4, and a spring element 404 is connected between the bottom cover plate 405 of the vertical slide body 403 and the lower surface of the loading seat 4; a rotating sleeve 406 is rotatably arranged on the cover plate 405, and the outer circular tube 5 and multiple strips 607 are slidably arranged in the matching holes of the rotating sleeve 406. After the outer cylindrical tube 5 or the middle tube body 601 or the inner tube body 701 is inserted into the gap in the road surface, the cover plate 405 can slide on the road surface and block the gap, which is beneficial to partially close the gap and improve the effect of sucking fine particles. When filling the slurry, the cover plate 405 can also squeeze the slurry under the elastic force of the spring element 404 to increase the filling density, which is beneficial to improve the repair and maintenance effect. The outer cylindrical tube 5 and the multiple strips 607 are slidably arranged in the matching hole of the rotating sleeve 406, so that when the outer cylindrical tube 5 and the multiple strips 607 rotate, the rotating sleeve 406 can be driven to rotate without affecting the movement of the outer cylindrical tube 5 and the multiple strips 607. In addition, the road surface at the gap can be smoothed to a certain extent by rotating the rotating sleeve 406, thereby improving the subsequent repair effect.

[0056] The maintenance method is applied to the maintenance device for a highway pavement, and the method comprises the following steps:

[0057] Installing the loading frame 1 on the maintenance vehicle;

[0058] Control the maintenance vehicle to drive the road surface gap maintenance component 2 on the loading frame 1 to move to the road surface gap;

[0059] The outer tube 5 is controlled to be gradually inserted into the road surface gap, and the power element 3 is started, so that the power element 3 drives the outer tube 5 to rotate to expand the road surface gap;

[0060] The top of the outer circular tube 5 is controlled to be connected to a negative pressure fan to suck out the fine debris and dust in the gaps of the road surface;

[0061] The top of the outer circular tube 5 is controlled to be connected to a grouting machine, and slurry for filling the road surface gaps is injected into the outer circular tube 5 through the grouting machine. The slurry is filled into the road surface gaps through the bottom opening of the outer circular tube 5 and multiple external openings 501 to repair the road surface gaps.

[0062] The method has a fast road repair speed and a good repair effect.

[0063] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0064] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A maintenance device for highway pavement, characterized in that: include: A loading frame (1) used for connecting to a maintenance vehicle, wherein a road surface gap maintenance component (2) and a power element (3) are connected to the loading frame (1); The pavement gap maintenance component (2) comprises: a loading seat (4) for connecting to a loading frame (1); an outer circular tube (5) is rotated on the loading seat (4); a plurality of outer openings (501) are provided at the lower side of the outer circular tube (5); and the outer circular tube (5) is connected to a power element (3) assembled on the loading seat (4).

2. A maintenance device for highway pavement according to claim 1, characterized in that: A plurality of external openings (501) are provided from bottom to top at the lower side of the outer circular tube (5); a lower bevel gear (502) fixedly arranged at the top of the outer circular tube (5) is connected to the power element (3); a middle circular tube unit (6) for closing or opening the plurality of external openings (501) is movably connected inside the outer circular tube (5); the bottom of the middle circular tube unit (6) can be passed downward to the outside of the outer circular tube (5) or retracted upward to the inside of the outer circular tube (5); the top of the middle circular tube unit (6) is connected to the loading seat (4) and is connected to the power element (3).

3. A maintenance device for highway pavement according to claim 2, characterized in that: The middle round tube unit (6) comprises: a middle tube body (601) for closing or opening a plurality of external openings (501); the middle tube body (601) is movably connected in the outer round tube (5); the top of the middle tube body (601) is rotatably mounted on a middle frame plate (602); the middle frame plate (602) and the loading seat (4) are respectively connected to the upper and lower ends of the cylinder 1 (603); and the middle bevel gear (604) on the middle tube body (601) is connected to the power element (3).

4. A maintenance device for highway pavement according to claim 3, characterized in that: A plurality of inclined crushing heads (605) are arranged at the bottom of the middle tube body (601).

5. A highway pavement maintenance device according to claim 3, characterized in that: A plurality of short blocks (606) are fixedly arranged on the outer side of the middle tube body (601), and the plurality of short blocks (606) are slidably arranged in a plurality of slide grooves on the side of the outer circular tube (5). One end of the plurality of short blocks (606) passing through the plurality of slide grooves is connected with a plurality of strip plates (607) slidably arranged on the outer circular tube (5), and the plurality of strip plates (607) are covered outside a plurality of external openings (501) opened on the side of the outer circular tube (5). When the middle tube body (601) opens or closes the plurality of external openings (501) on the inner side of the outer circular tube (5), the plurality of strip plates (607) are driven by the plurality of short blocks (606) to synchronously open or close the plurality of external openings (501) on the outer side of the outer circular tube (5); an inclined cutting edge (608) is arranged at the bottom of the strip plates (607).

6. A highway pavement maintenance device according to claim 5, characterized in that: Also includes: Inner tube unit (7); The inner tube unit (7) comprises: an inner tube body (701) movably connected to the middle tube body (601); a conical drilling head (702) at the bottom of the inner tube body (701) can be downwardly penetrated to the outside of the middle tube body (601) or retracted into the inside of the middle tube body (601); the top of the inner tube body (701) is rotated on an upper frame plate (703); the upper frame plate (703) and the loading seat (4) are respectively connected to the two ends of the cylinder 2 (704); the upper bevel gear (705) on the inner tube body (701) is connected to the power element (3); a plurality of inner openings (706) are arranged around the lower side of the inner tube body (701) from bottom to top, and the plurality of inner openings (706) can be opened or closed when the middle tube body (601) slides relatively on the inner tube body (701); a joint pipe for connecting a negative pressure fan or a grouting machine is rotated on the top of the inner tube body (701).

7. A highway pavement maintenance device according to claim 6, characterized in that: The power element (3) comprises: a motor (301) mounted on a loading seat (4); a pulley of the motor (301) is connected to a pulley fixed on a worm (302) via a belt; the bottom of the worm (302) is rotated in a mounting hole on the upper surface of the loading seat (4); the worm (302) is meshed and connected with a lower worm wheel (303), a middle worm wheel (304) and an upper worm wheel (305) in sequence from bottom to top; the lower worm wheel (303) and a bevel gear (306) are respectively fixed at two ends of the lower wheel shaft; the bevel gear (306) is fixed to the lower wheel shaft at two ends ... The lower wheel shaft is rotatably mounted on the lower bracket on the loading seat (4); the middle worm gear (304) and the second bevel gear (307) are respectively fixed at both ends of the middle wheel shaft, the middle wheel shaft is rotatably mounted on the middle frame plate (602), and the second bevel gear (307) is meshed with the middle bevel gear (604); the upper worm gear (305) and the third bevel gear (308) are respectively fixed at both ends of the upper wheel shaft, the upper wheel shaft is rotatably mounted on the upper frame plate (703), and the third bevel gear (308) is meshed with the upper bevel gear (705).

8. A highway pavement maintenance device according to claim 7, characterized in that: The loading seat (4) is slidably mounted on the inner sides of the front end plate and the rear end plate of the loading frame (1) through two transverse open grooves; the left and right ends of the loading seat (4) are respectively connected to the left end plate and the right end plate of the loading frame (1) through a plurality of tension springs (401); a fixed point screw rod (402) is threadedly connected to the loading seat (4), and the fixed point screw rod (402) is inserted into a fixed point through hole of the rear end plate of the loading frame (1).

9. A highway pavement maintenance device according to claim 8, characterized in that: The loading seat (4) is slidably connected to the middle part of the vertical sliding body (403); a clamping block at the top of the vertical sliding body (403) is clamped on the upper surface of the loading seat (4); a spring element (404) is connected between a cover plate (405) at the bottom of the vertical sliding body (403) and the lower surface of the loading seat (4); a rotating sleeve (406) is rotatably arranged on the cover plate (405); and an outer circular tube (5) and a plurality of strip plates (607) are slidably arranged in an adapting hole of the rotating sleeve (406).

10. A maintenance method, applied to a maintenance device for a highway pavement as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: Installing the loading frame (1) on the maintenance vehicle; Controlling the maintenance vehicle to drive the road surface gap maintenance component (2) on the loading frame (1) to move to the road surface gap; The outer circular tube (5) is controlled to be gradually inserted into the road surface gap, and the power element (3) is started, so that the power element (3) drives the outer circular tube (5) to rotate, so as to expand the road surface gap; The top of the outer circular tube (5) is controlled to be connected to a negative pressure fan to suck out fine particles and dust in the cracks of the road surface; The top of the outer circular tube (5) is controlled to be connected to a grouting machine, and slurry for filling the road surface gap is injected into the outer circular tube (5) through the grouting machine. The slurry is filled into the road surface gap through the bottom opening of the outer circular tube (5) and the plurality of external openings (501) to repair the road surface gap.

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