Asphalt pavement crack repairing device and method

Abstract

The invention belongs to the field of asphalt pavement patching, and particularly relates to an asphalt pavement crack patching device and a patching method.The asphalt pavement crack patching device comprises an engine, the output end of the engine is fixedly connected with a horizontally-arranged power shaft, a cutting disc is arranged on one side of the engine, and a protective cover is arranged on the outer side of the cutting disc; a driving arm for adjusting the height of the cutting disc is arranged on the side, away from the power shaft, of the engine, the three functions of road surface cutting, damaged road surface crushing and repairing material tamping are integrated through one device, the time loss caused by continuous equipment switching in the repairing process due to the single function of the equipment is greatly reduced, and the repairing efficiency is improved. The device is simple in structure and convenient to operate, transportation cost required for transporting the devices is reduced due to the fact that the number of the devices is small, meanwhile, driving of three functions can be completed through one power output source, the overall size is reduced, the device cost is reduced, and meanwhile operation becomes convenient.

Description

Technical Field

[0001] The invention belongs to the field of asphalt pavement repair, in particular to an asphalt pavement crack repair device and a repair method. Background Art

[0002] Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed into mineral materials. The asphalt binder improves the ability of paving aggregate to resist damage to the road surface caused by traffic and natural factors, making the road surface smooth, dust-free, waterproof and durable.

[0003] After long-term use, asphalt pavement will have defects such as cracks and collapses, which need to be repaired in time. There are generally two repair methods. When the cracks are small, you can directly add repair materials to the cracks; when the cracks are large, in order to ensure long-term use, the defective areas need to be completely cleaned, and then filled with repair materials, and the materials and the original asphalt pavement are compacted and fixed to ensure the quality of the repair;

[0004] The traditional asphalt repair process requires first drawing rectangular box markings on the road surface, then cutting and separating the damaged asphalt road surface along the markings, then breaking, shoveling and cleaning the asphalt road surface inside the box, then placing the repair material into the cleaned box, and finally compacting the repair material multiple times. The entire process requires a variety of equipment, and the areas that need to be repaired are relatively scattered. Carrying many devices to the repair location for work not only takes up too much transfer space, but also the switching and transportation of each device when used is cumbersome, which is not conducive to the rapid repair process in such an environment as highways.

[0005] To this end, the present invention provides an asphalt pavement crack repairing device and a repairing method. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: an asphalt pavement crack repairing device described in the present invention comprises an engine, the output end of the engine is fixedly connected to a horizontally arranged power shaft, a cutting disc is arranged on one side of the engine, a protective cover is arranged on the outer side of the cutting disc, a driving arm for adjusting the height of the cutting disc is arranged on the side of the engine away from the power shaft, a belt for transmitting power to the cutting disc is sleeved on the outer side of the power shaft, a tamping plate is arranged below the engine, a driving plate for driving the tamping plate to vibrate is fixedly connected to the middle part of the power shaft, a crushing nail for crushing the asphalt pavement is also arranged on one side of the engine, an adsorption cover for driving the crushing nail to rise and fall is also drivingly connected to the end of the power shaft, and two electric wheels capable of rising and falling are arranged on the outer side of the engine;

[0008] Through the setting of the tamping plate, cutting disc and crushing nails, the device is placed on the road surface that needs to be repaired, and the cutting disc is aligned with the pre-drawn marking line. Then the cutting disc starts to rotate, and the driving arm is used to adjust the height of the cutting disc so that it sinks together with the protective cover, so that the cutting disc cuts the asphalt road surface. The engine drives the power shaft to rotate, and the power shaft drives the cutting disc to rotate through the belt, and the electric wheel drives the device to move forward, thereby separating the asphalt in the marking area from the asphalt on the road surface. During the separation process, the rotation of the power shaft can also synchronously drive the adsorption cover to rotate, and the adsorption cover will contact the crushing nails and drive the crushing nails to move up and down, so that the crushing nails can synchronously crush the asphalt road surface in the marking area during the cutting process of the cutting disc. It should be noted that the crushing nails need to be placed in the marking area, and cannot be placed outside the marking area; when the cutting is completed, the driving arm is used to adjust the height of the cutting disc and the protective cover, and both are raised so that the cutting disc no longer contacts the road surface, and then the equipment is pushed to move in the marking area. During the movement, the crushing nails that move up and down continuously crush the asphalt road surface. In order to improve safety, the cutting disc can be removed. After the crushing is completed , adjust the electric wheel upward so that the bottom compacting plate directly contacts the ground, the engine drives the power shaft and the drive disc to rotate, and the drive disc can drive the bottom compacting plate to vibrate at high frequency. Since the bottom of the compacting plate fits the ground, the road repair material and the asphalt foundation are compacted under the action of high-frequency vibration. During the high-frequency vibration process, the friction between the entire device and the ground is reduced, so that the device can be moved on the ground without the help of the electric wheel drive, only by manual push, thereby completing the function of compacting the repair material; through this setting, one device is used to integrate the three functions of road cutting, damaged road crushing, and compaction of repair materials, which greatly reduces the time loss caused by the need to constantly switch equipment during the repair process due to the single function of the equipment, and because the number of equipment is small, the transportation cost required for transporting equipment is also reduced. At the same time, the device uses one power output source to complete the drive of the three functions, which not only reduces the overall volume, but also reduces the equipment cost, and makes the operation convenient; not only that, in the process of cutting the road surface, the function of road crushing can also be performed simultaneously, further improving the efficiency of road repair.

[0009] Preferably, a protective shell is fixedly connected to the outer side of the engine, a lifting platform is provided on one side of the protective shell, a vertically arranged hydraulic rod is fixedly connected between the lifting platform and the protective shell, the electric wheels are installed on both sides of the lifting platform, the outer side of the protective shell is rotatably connected to an operating arm, and the side of the protective shell away from the lifting platform is rotatably connected to a folding wheel, the protective shell is arranged on the outer side of the engine, the operating arm can rotate, and the operator grasps the operating arm to control the forward direction of the equipment; by shortening the hydraulic rod, the lifting platform is raised relative to the protective shell, so that the electric wheel no longer contacts the ground, and at the same time the folding wheel is flipped upward, so that only the tamping plate contacts the ground, and when the tamping plate vibrates, under the huge gravity of the engine and other parts, the equipment still fits the ground, and can transmit the vibration to the repair material at the bottom, thereby compacting the repair material.

[0010] Preferably, a horizontally arranged transmission shaft is fixedly connected to the middle part of the cutting disk, one end of the transmission shaft is located inside the protective shell, the belt is sleeved on the outside of the transmission shaft and the power shaft, a restraining sleeve is rotatably sleeved on the outside of the transmission shaft, and the driving arm is respectively fixed to the restraining sleeve and the protective cover. When the power shaft rotates, the transmission shaft is driven to rotate through the belt, and the transmission shaft then drives the cutting disk to rotate. The restraining sleeve is set so that in order to fix the position of the transmission shaft, the driving arm can adjust the height of the restraining sleeve, thereby controlling whether the cutting disk contacts the ground for cutting, and the movement of the restraining sleeve can synchronously drive the protective cover to move, so that the protective cover is always sleeved on the outside of the cutting disk for protection.

[0011] Preferably, the driving arm is rotatably connected to the outer side of the engine, and a positioning rod arranged perpendicular to the driving arm is slidably sleeved on the top of the outer side of the driving arm. An arc-shaped operating groove is provided on the outer side of the protective shell, and the positioning rod is located in the operating groove. By adjusting the positioning rod on the outer side of the protective shell for circular movement, the restraining sleeve and the transmission shaft can be moved in a circular manner inside the protective shell to adjust the rise and fall of the cutting disc and the protective cover. After the adjustment is completed, the positioning rod can be slid and inserted into the notch of the operating groove to fix the driving arm, and then fix the position of the cutting disc, thereby realizing the function of adjusting the height of the cutting disc and controlling whether the cutting disc cuts the ground.

[0012] Preferably, a nail hole for passing a breaker nail is formed on the surface of the tamping plate, a sliding sleeve is sleeved on the outer side of the breaker nail, the sliding sleeve is fixed to the protective shell by a reinforcement frame, a vertical spring is fixed between the top of the breaker nail and the inside of the sliding sleeve, the adsorption cover can rotate and continuously hit the breaker nail from the top, when the road surface is broken, the power shaft of the engine will drive the adsorption cover to rotate, the sliding sleeve is vertically fixed in the protective shell, under the action of the vertical spring, the top of the breaker nail will be lifted to the top of the sliding sleeve, during the rotation of the adsorption cover, it will continuously hit the breaker nail at the bottom, and then the breaker nail will rebound under the action of the vertical spring, so that the bottom of the breaker nail continuously passes through the nail hole and breaks the ground. Through this arrangement, the function of the breaker nail continuously breaking the damaged asphalt road surface is realized.

[0013] Preferably, the end of the power shaft is fixedly connected to a magnetic block made of magnetic material, and the adsorption cover is sleeved on the outside of the magnetic block, the magnetic block is made of magnetic material, one end of the adsorption cover is fixedly connected to an electric telescopic rod for driving the adsorption cover to move horizontally, and the surface of the adsorption cover is fixedly connected with two symmetrically arranged protrusions, so that the crushing nails can work only when needed, through the setting of the electric telescopic rod, when the crushing nails are not needed, the electric telescopic rod is shortened, and the adsorption cover is moved away from the outside of the magnetic block, so that the crushing nails are always in an upper state, neither passing through the nail holes nor crushing the road surface; when the crushing nails are needed to work, the electric telescopic rod is started to extend, and the adsorption cover is moved to the outside of the magnetic block, and the two are transmitted under the action of magnetic attraction, the power shaft drives the magnetic block to rotate, and the magnetic block drives the adsorption cover to rotate, and then continuously hits the top of the crushing nail, so that the bottom of the crushing nail continuously breaks the road surface, and the top of the crushing nail is hemispherical, which is convenient for the protrusions around the adsorption cover to hit the crushing nail.

[0014] Preferably, the driving disk is composed of two disks, which are fixedly connected by an eccentric rod, a piston connecting rod group is arranged between the two disks, a fixing sleeve is fixedly connected to the inside of the protective shell, the bottom translation end of the piston connecting rod group is slidably clamped in the fixing sleeve, the rotating end of the piston connecting rod group is sleeved on the outside of the eccentric rod, the top of the tamping plate is fixedly connected to an impact column, the impact column is slidably clamped in the fixing sleeve, the power shaft drives the driving disk to rotate, and the driving disk drives the piston connecting rod group to reciprocate, so that the bottom of the piston connecting rod group continuously hammers the impact column, and the protective shell All parts are directly connected to the protective shell, not to the tamping plate, so under the action of impact, the tamping plate will be downward, while the entire protective shell and internal parts will be upward. Under the action of gravity, the power generated by the impact will eventually be converted into the force of the tamping plate pressing the ground. Under high-speed impact, the tamping plate vibrates at a high frequency, thereby effectively compacting the asphalt repair material. Under high-frequency vibration, the equipment will have a smaller contact area with the ground and temporarily float in the air, so the entire equipment can be pushed without electric wheels, and the movement of the equipment can be controlled by pushing the operating arm.

[0015] Preferably, the tamping plate is made of solid metal and is arranged in a flat shape. A plurality of vertically arranged spring telescopic rods are fixedly connected between the top of the tamping plate and the protective shell and the engine. In order to ensure that the moving trajectory of the tamping plate can only move up and down, a plurality of spring telescopic rods are connected between the protective shell and the tamping plate, so that the tamping plate can only move up and down under the impact of the piston connecting rod group, while also ensuring the stable reciprocating working process of the piston connecting rod group.

[0016] A method for repairing cracks in an asphalt pavement, which is applicable to the asphalt pavement crack repairing device described above, and specifically comprises:

[0017] S1: Mark the road surface to be repaired, frame the damaged area in the markings, place the device on the road surface to be repaired, align the cutting disc with the pre-drawn markings, then the cutting disc starts to rotate, use the drive arm to adjust the height of the cutting disc, let it sink together with the protective cover, and let the cutting disc cut the asphalt road surface;

[0018] S2: During the cutting process and the subsequent individual stages, the electric telescopic rod can be activated to extend, allowing the suction cover to move to the outside of the magnetic block. The two are transmitted under the action of magnetic attraction. The power shaft drives the magnetic block to rotate, and the magnetic block drives the suction cover to rotate, which continuously hits the top of the crushing nail, allowing the bottom of the crushing nail to continuously crush the road surface;

[0019] S3: After the crushing is completed, the hydraulic rod is shortened to allow the lifting platform to rise relative to the protective shell, so that the electric wheel no longer contacts the ground. At the same time, the folding wheel is flipped upward, leaving only the tamping plate in contact with the ground. The engine drives the power shaft and the drive disc to rotate, and the drive disc can drive the tamping plate at the bottom to vibrate at high frequency. Since the bottom of the tamping plate is in contact with the ground, the road repair material and the asphalt foundation are compacted under the action of high-frequency vibration.

[0020] The method of high-frequency vibration of the compaction plate described in step S3 is as follows:

[0021] Q1: The engine drives the drive plate to rotate through the power shaft, and the drive plate drives the piston connecting rod group to reciprocate;

[0022] Q2: The bottom of the piston-connecting rod assembly continuously hammers the impact column. All parts in the protective shell are directly connected to the protective shell, not to the tamping plate. Under the impact, the tamping plate will move downward, while the entire protective shell and internal parts will move upward.

[0023] Q3: Under the action of gravity, the power generated by the impact will eventually be converted into the force of the compacting plate pressing the ground. Under high-speed impact, the compacting plate vibrates at a high frequency, thereby compacting the asphalt repair material.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The asphalt pavement crack repairing device and repairing method described in the present invention, through the provision of a tamping plate, a cutting disc and a crushing nail, realizes the use of one device to integrate the three functions of pavement cutting, damaged pavement crushing and compacting of repair materials, thereby greatly reducing the time loss caused by the need to constantly switch devices during the repair process due to the single function of the equipment, and because the number of equipment is small, the transportation cost required for transporting the equipment is also reduced. At the same time, the device uses one power output source to complete the driving of the three functions, which not only reduces the overall volume and reduces the equipment cost, but also makes the operation convenient; not only that, in the process of cutting the pavement, the pavement crushing function can also be performed simultaneously, further improving the efficiency of pavement repair.

[0026] 2. In the asphalt pavement crack repair device and method described in the present invention, a protective shell is arranged on the outside of the engine, and the operating arm can rotate. The operator grasps the operating arm to control the forward direction of the equipment; by shortening the hydraulic rod, the lifting platform is raised relative to the protective shell, so that the electric wheel no longer contacts the ground, and at the same time the folding wheel is flipped upward, leaving only the tamping plate in contact with the ground. When the tamping plate vibrates, under the huge gravity of the engine and other parts, the equipment still adheres to the ground, and can transmit the vibration to the repair material at the bottom, thereby compacting the repair material. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 is a three-dimensional diagram of the protective shell of the present invention;

[0030] Figure 3 is a perspective view of the engine of the present invention;

[0031] Figure 4 is a perspective view of the drive arm and the engine of the present invention;

[0032] Figure 5 is a three-dimensional diagram of a tamping plate of the present invention;

[0033] Figure 6 is a three-dimensional diagram of the drive disk of the present invention;

[0034] Figure 7 is a three-dimensional diagram of a crushing nail of the present invention;

[0035] Figure 8 is a flowchart of the method of the present invention;

[0036] In the figure: 1. Protective shell; 2. Operating arm; 3. Lifting platform; 4. Electric wheel; 5. Protective cover; 6. Cutting disc; 7. Tamping plate; 8. Folding wheel; 9. Operating slot; 10. Engine; 11. Power shaft; 12. Adsorption cover; 13. Reinforcement frame; 14. Spring telescopic rod; 15. Sliding sleeve; 16. Restraining sleeve; 17. Transmission shaft; 18. Belt; 19. Driving arm; 20. Positioning rod; 21. Driving disc; 22. Nail hole; 23. Fixed sleeve; 24. Impact column; 25. Electric telescopic rod; 26. Magnetic block; 27. Crushing nail; 28. Vertical spring; 29. ​​Piston connecting rod group. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figure 1 to Figure 2As shown, an asphalt pavement crack repairing device according to an embodiment of the present invention comprises an engine 10, wherein a horizontally arranged power shaft 11 is fixedly connected to an output end of the engine 10, a cutting disc 6 is arranged on one side of the engine 10, a protective cover 5 is arranged on the outer side of the cutting disc 6, a driving arm 19 for adjusting the height of the cutting disc 6 is arranged on the side of the engine 10 away from the power shaft 11, a belt 18 for transmitting power to the cutting disc 6 is sleeved on the outer side of the power shaft 11, a tamping plate 7 is arranged below the engine 10, a driving disc 21 for driving the tamping plate 7 to vibrate is fixedly connected to the middle part of the power shaft 11, a crushing nail 27 for crushing the asphalt pavement is also arranged on one side of the engine 10, an adsorption cover 12 for driving the crushing nail 27 to rise and fall is also transmission-connected to the end of the power shaft 11, and two electric wheels 4 capable of rising and falling are arranged on the outer side of the engine 10;

[0039] Traditional asphalt repair requires at least: a pavement cutter to cut the damaged asphalt pavement; a crusher or manual iron pick to break the asphalt pavement; a compactor to compact the laid material. Multiple machines are used one by one to complete the pavement repair work.

[0040] By setting the compacting plate 7, the cutting disc 6 and the crushing nail 27, the device is placed on the road surface to be repaired, and the cutting disc 6 is aligned with the pre-drawn marking line. Then the cutting disc 6 starts to rotate, and the driving arm 19 is used to adjust the height of the cutting disc 6 so that it sinks together with the protective cover 5, so that the cutting disc 6 cuts the asphalt road surface, and the engine 10 drives the power shaft 11 to rotate, and the power shaft 11 drives the cutting disc 6 to rotate through the belt 18, and the electric wheel 4 drives the device forward, so as to separate the asphalt in the marking area from the asphalt on the road surface. During the separation process, the rotation of the power shaft 11 can also synchronously drive the adsorption As the cover 12 rotates, the adsorption cover 12 will contact the crushing nails 27 and drive the crushing nails 27 to move up and down, so that the crushing nails 27 can synchronously crush the asphalt pavement in the marking area during the cutting process of the cutting disc 6. It should be noted that the crushing nails 27 need to be placed in the marking area and cannot be placed outside the marking area. When the cutting is completed, the driving arm 19 is used to adjust the height of the cutting disc 6 and the protective cover 5, and both are raised so that the cutting disc 6 no longer contacts the road surface. Then the equipment is pushed to move in the marking area. During the movement, the crushing nails 27 that move up and down continuously crush the asphalt pavement. In order to improve safety The cutting disc 6 can be removed. After the crushing is completed, the electric wheel 4 is adjusted upward to allow the tamping plate 7 at the bottom to directly contact the ground. The engine 10 drives the power shaft 11 and the driving disc 21 to rotate. The driving disc 21 can drive the tamping plate 7 at the bottom to vibrate at a high frequency. Since the bottom of the tamping plate 7 is in contact with the ground, the road repair material and the asphalt foundation are compacted under the action of the high-frequency vibration. During the high-frequency vibration process, the friction between the entire device and the ground is reduced, so that the device can be moved on the ground without the help of the drive of the electric wheel 4, and only needs to be pushed manually, thereby completing the function of compacting the repair material. The device uses one device to integrate the three functions of road surface cutting, damaged road surface crushing, and compaction of repair materials. It greatly reduces the time loss caused by the need to constantly switch equipment during the repair process due to the single function of the equipment. And because the number of equipment is small, the transportation cost required for transporting equipment is also reduced. At the same time, the device uses one power output source to complete the driving of three functions, which not only reduces the overall volume and reduces the equipment cost, but also makes the operation convenient. Not only that, in the process of cutting the road surface, the function of road surface crushing can also be performed simultaneously, further improving the efficiency of road surface repair.

[0041] A protective shell 1 is fixedly connected to the outside of the engine 10, a lifting platform 3 is arranged on one side of the protective shell 1, a vertically arranged hydraulic rod is fixedly connected between the lifting platform 3 and the protective shell 1, the electric wheel 4 is installed on both sides of the lifting platform 3, the outer side of the protective shell 1 is rotatably connected to an operating arm 2, and the side of the protective shell 1 away from the lifting platform 3 is rotatably connected to a folding wheel 8;

[0042] During operation, the protective shell 1 is arranged on the outside of the engine 10, and the operating arm 2 can rotate. The operator grasps the operating arm 2 to control the forward direction of the equipment; by shortening the hydraulic rod, the lifting platform 3 is raised relative to the protective shell 1, so that the electric wheel 4 no longer contacts the ground, and at the same time, the folding wheel 8 is flipped upward, leaving only the tamping plate 7 in contact with the ground. When the tamping plate 7 vibrates, under the huge gravity of the engine 10 and other parts, the equipment still adheres to the ground, and can transmit the vibration to the repair material at the bottom, thereby compacting the repair material.

[0043] A horizontally arranged transmission shaft 17 is fixedly connected to the middle of the cutting disc 6, one end of the transmission shaft 17 is located inside the protective shell 1, the belt 18 is sleeved on the outside of the transmission shaft 17 and the power shaft 11, a restraining sleeve 16 is rotatably sleeved on the outside of the transmission shaft 17, and the driving arm 19 is respectively fixedly connected to the restraining sleeve 16 and the protective cover 5;

[0044] During operation, when the power shaft 11 rotates, it will drive the transmission shaft 17 to rotate through the belt 18, and the transmission shaft 17 will then drive the cutting disk 6 to rotate. The restraining sleeve 16 is set to fix the position of the transmission shaft 17. The driving arm 19 can adjust the height of the restraining sleeve 16, so as to control whether the cutting disk 6 contacts the ground for cutting, and the movement of the restraining sleeve 16 can synchronously drive the protective cover 5 to move, so that the protective cover 5 is always on the outside of the cutting disk 6 for protection.

[0045] The driving arm 19 is rotatably connected to the outer side of the engine 10, and a positioning rod 20 vertically arranged with the driving arm 19 is slidably sleeved on the outer side of the driving arm 19 by the top, and an arc-shaped operating groove 9 is opened on the outer side of the protective shell 1, and the positioning rod 20 is located in the operating groove 9;

[0046] During operation, by adjusting the positioning rod 20 on the outside of the protective shell 1 to move in a circular motion, the restraining sleeve 16 and the transmission shaft 17 can move in a circular motion inside the protective shell 1, so as to adjust the rise and fall of the cutting disk 6 and the protective cover 5. After the adjustment is completed, the positioning rod 20 can be slid and inserted into the notch of the operating slot 9 to fix the drive arm 19, and then fix the position of the cutting disk 6, thereby realizing the function of adjusting the height of the cutting disk 6 and controlling whether the cutting disk 6 cuts the ground.

[0047] The surface of the tamping plate 7 is provided with a nail hole 22 for passing the crushing nail 27. The outer side of the crushing nail 27 is sleeved with a sliding sleeve 15. The sliding sleeve 15 is fixed to the protective shell 1 through a reinforcing frame 13. A vertical spring 28 is fixed between the top of the crushing nail 27 and the inside of the sliding sleeve 15. The adsorption cover 12 can rotate and continuously hit the crushing nail 27 from the top.

[0048] During operation, when breaking the road surface, the power shaft 11 of the engine 10 will drive the adsorption cover 12 to rotate, and the sliding sleeve 15 will be vertically fixed in the protective shell 1. Under the action of the vertical spring 28, the top of the breaking nail 27 will be lifted to above the sliding sleeve 15. During the rotation of the adsorption cover 12, it will continuously hit the breaking nail 27 at the bottom, and then the breaking nail 27 will rebound under the action of the vertical spring 28, so that the bottom of the breaking nail 27 will continuously pass through the nail hole 22 and break the ground. Through this arrangement, the function of the breaking nail 27 to continuously break the damaged asphalt road surface is realized.

[0049] The end of the power shaft 11 is fixedly connected with a magnetic block 26 made of a magnetic material, and the adsorption cover 12 is sleeved on the outside of the magnetic block 26. The magnetic block 26 is made of a magnetic material. One end of the adsorption cover 12 is fixedly connected with an electric telescopic rod 25 for driving the adsorption cover 12 to move horizontally. The surface of the adsorption cover 12 is fixedly connected with two symmetrically arranged protrusions.

[0050] During operation, in order to allow the breaker nail 27 to work only when needed, the electric telescopic rod 25 is set. When the breaker nail 27 is not needed to work, the electric telescopic rod 25 is shortened to allow the adsorption cover 12 to move away from the outside of the magnetic block 26, so that the breaker nail 27 is always in an upward state, and will neither pass through the nail hole 22 nor break the road surface; when the breaker nail 27 is needed to work, the electric telescopic rod 25 is started to extend to allow the adsorption cover 12 to move to the outside of the magnetic block 26, and the two are transmitted under the action of magnetic attraction, the power shaft 11 drives the magnetic block 26 to rotate, and the magnetic block 26 drives the adsorption cover 12 to rotate, and then continuously hits the top of the breaker nail 27, so that the bottom of the breaker nail 27 continuously breaks the road surface, and the top of the breaker nail 27 is hemispherical, which is convenient for the protrusion around the adsorption cover 12 to hit the breaker nail 27.

[0051] The driving disk 21 is composed of two disks, which are fixedly connected by an eccentric rod. A piston connecting rod group 29 is arranged between the two disks. A fixing sleeve 23 is fixedly connected to the inside of the protective shell 1. The bottom translation end of the piston connecting rod group 29 is slidably engaged in the fixing sleeve 23. The rotating end of the piston connecting rod group 29 is sleeved on the outside of the eccentric rod. The top of the tamping plate 7 is fixedly connected to an impact column 24, which is slidably engaged in the fixing sleeve 23.

[0052] During operation, the power shaft 11 drives the driving disk 21 to rotate, and the driving disk 21 drives the piston connecting rod group 29 to reciprocate, so that the bottom of the piston connecting rod group 29 continuously hammers the impact column 24. All parts in the protective shell 1 are directly connected to the protective shell 1, but not to the tamping plate 7. Therefore, under the action of the impact, the tamping plate 7 will be downward, and the entire protective shell 1 and internal parts will be upward. Under the action of gravity, the power generated by the impact will eventually become the force of the tamping plate 7 to press the ground. Under high-speed impact, the tamping plate 7 vibrates at a high frequency, thereby effectively compacting the asphalt repair material. Under high-frequency vibration, the equipment will have a smaller contact area with the ground and a temporarily floating state, so the entire equipment can be pushed without the electric wheel 4, and the movement of the equipment can be controlled by pushing the operating arm 2.

[0053] The tamping plate 7 is made of solid metal and is arranged in a flat shape. A plurality of vertically arranged spring telescopic rods 14 are fixedly connected between the top of the tamping plate 7 and the protective shell 1 and the engine 10. During operation, in order to ensure that the moving trajectory of the tamping plate 7 can only move up and down, a plurality of spring telescopic rods 14 are connected between the protective shell 1 and the tamping plate 7, so that the tamping plate 7 can only move up and down under the impact of the piston connecting rod group 29, while also ensuring the stable reciprocating working process of the piston connecting rod group 29.

[0054] A method for repairing cracks in an asphalt pavement, which is applicable to the asphalt pavement crack repairing device described above, and specifically comprises:

[0055] S1: Marking the road surface to be repaired, framing the damaged area in the markings, placing the device on the road surface to be repaired, aligning the cutting disc 6 with the pre-drawn markings, and then the cutting disc 6 starts to rotate, and the driving arm 19 is used to adjust the height of the cutting disc 6 so that it and the protective cover 5 sink together, so that the cutting disc 6 cuts the asphalt road surface;

[0056] S2: During the cutting process and the subsequent individual stages, the electric telescopic rod 25 can be started to extend, so that the adsorption cover 12 moves to the outside of the magnetic block 26, and the two are transmitted under the action of magnetic attraction, the power shaft 11 drives the magnetic block 26 to rotate, and the magnetic block 26 drives the adsorption cover 12 to rotate, and then continuously hits the top of the crushing nail 27, so that the bottom of the crushing nail 27 continuously crushes the road surface;

[0057] S3: After the crushing is completed, the lifting platform 3 is raised relative to the protective shell 1 by shortening the hydraulic rod, so that the electric wheel 4 no longer contacts the ground, and the folding wheel 8 is flipped upward, leaving only the tamping plate 7 in contact with the ground. The engine 10 drives the power shaft 11 and the drive disk 21 to rotate, and the drive disk 21 can drive the tamping plate 7 at the bottom to vibrate at high frequency. Since the bottom of the tamping plate 7 is in contact with the ground, the road repair material and the asphalt foundation are compacted under the action of high-frequency vibration.

[0058] Also includes:

[0059] The method of high-frequency vibration of the compacting plate 7 in step S3 is as follows:

[0060] Q1: The engine 10 drives the driving plate 21 to rotate through the power shaft 11, and the driving plate 21 drives the piston connecting rod assembly 29 to reciprocate;

[0061] Q2: The bottom of the piston connecting rod assembly 29 continuously hammers the impact column 24. All parts in the protective shell 1 are directly connected to the protective shell 1, but not to the tamping plate 7. Under the impact, the tamping plate 7 will be downward, while the entire protective shell 1 and the internal parts will be upward;

[0062] Q3: Under the action of gravity, the power generated by the impact will eventually be converted into the force of the compacting plate 7 pressing the ground. Under the high-speed impact, the compacting plate 7 vibrates at a high frequency, thereby compacting the asphalt repair material.

[0063] During operation, the device is placed on the road surface to be repaired by setting the compacting plate 7, the cutting disc 6 and the crushing nails 27, and the cutting disc 6 is aligned with the pre-drawn marking line. Then the cutting disc 6 starts to rotate, and the driving arm 19 is used to adjust the height of the cutting disc 6 so that it and the protective cover 5 sink together, so that the cutting disc 6 cuts the asphalt road surface, and the power shaft 11 is driven by the engine 10 to rotate, and the power shaft 11 drives the cutting disc 6 to rotate through the belt 18, and the electric wheel 4 drives the device forward, so as to separate the asphalt in the marking area from the asphalt on the road surface. During the separation process, the rotation of the power shaft 11 can also synchronously drive the belt The suction cover 12 is driven to rotate, and the suction cover 12 will contact the crushing nails 27 and drive the crushing nails 27 to move up and down, so that the crushing nails 27 can synchronously crush the asphalt pavement in the marking area during the cutting process of the cutting disc 6. It should be noted that the crushing nails 27 need to be placed in the marking area and cannot be placed outside the marking area. When the cutting is completed, the driving arm 19 is used to adjust the height of the cutting disc 6 and the protective cover 5, and both are raised so that the cutting disc 6 no longer contacts the road surface, and then the equipment is pushed to move in the marking area. During the movement, the crushing nails 27 that move up and down continuously crush the asphalt pavement. In order to improve For safety, the cutting disc 6 can be removed. After the crushing is completed, the electric wheel 4 is adjusted upward to allow the tamping plate 7 at the bottom to directly contact the ground. The engine 10 drives the power shaft 11 and the driving disc 21 to rotate. The driving disc 21 can drive the tamping plate 7 at the bottom to vibrate at high frequency. Since the bottom of the tamping plate 7 is in contact with the ground, the road repair material and the asphalt foundation are compacted under the action of high-frequency vibration. During the high-frequency vibration process, the friction between the entire device and the ground is reduced, so that the device can be moved on the ground without the help of the drive of the electric wheel 4, and only needs to be pushed manually, thereby completing the function of compacting the repair material. The device integrates the three functions of road cutting, broken damaged road surface and compaction of repair materials in one device, which greatly reduces the time loss caused by the need to switch the device constantly during the repair process due to the single function of the device. The smaller the number of devices, the lower the transportation cost of the equipment. At the same time, the device uses one power output source to drive the three functions, which not only reduces the overall volume, but also reduces the equipment cost and makes the operation more convenient. In addition, in the process of cutting the road surface, the road surface can also be broken simultaneously, which further improves the efficiency of road repair.

[0064] The protective shell 1 is arranged outside the engine 10, and the operating arm 2 can rotate. The operator grasps the operating arm 2 to control the forward direction of the equipment; by shortening the hydraulic rod, the lifting platform 3 is raised relative to the protective shell 1, so that the electric wheel 4 no longer contacts the ground, and at the same time, the folding wheel 8 is turned upward, so that only the tamping plate 7 contacts the ground. When the tamping plate 7 vibrates, under the huge gravity of the engine 10 and other parts, the equipment still adheres to the ground, and the vibration can be transmitted to the repair material at the bottom, so as to compact the repair material;

[0065] When the power shaft 11 rotates, the transmission shaft 17 is driven to rotate through the belt 18, and the transmission shaft 17 drives the cutting disc 6 to rotate. The setting of the restraint sleeve 16 is to fix the position of the transmission shaft 17. The driving arm 19 can adjust the height of the restraint sleeve 16, so as to control whether the cutting disc 6 contacts the ground for cutting. The movement of the restraint sleeve 16 can synchronously drive the protective cover 5 to move, so that the protective cover 5 is always covered on the outside of the cutting disc 6 for protection.

[0066] By adjusting the positioning rod 20 on the outside of the protective shell 1 to move in a circular manner, the restraining sleeve 16 and the transmission shaft 17 can be moved in a circular manner inside the protective shell 1, so as to adjust the rise and fall of the cutting disc 6 and the protective cover 5. After the adjustment is completed, the positioning rod 20 can be slid and inserted into the notch of the operating slot 9 to fix the driving arm 19 and then fix the position of the cutting disc 6, thereby achieving the function of adjusting the height of the cutting disc 6 and controlling whether the cutting disc 6 cuts the ground;

[0067] When breaking the road surface, the power shaft 11 of the engine 10 drives the adsorption cover 12 to rotate, and the sliding sleeve 15 is vertically fixed in the protective shell 1. Under the action of the vertical spring 28, the top of the breaking nail 27 is lifted to the top of the sliding sleeve 15. During the rotation of the adsorption cover 12, it will continuously hit the breaking nail 27 at the bottom, and then the breaking nail 27 will rebound under the action of the vertical spring 28, so that the bottom of the breaking nail 27 continuously passes through the nail hole 22 and breaks the ground. Through this setting, the function of the breaking nail 27 to continuously break the damaged asphalt road surface is realized;

[0068] In order to make the crushing nail 27 work only when needed, the electric telescopic rod 25 is set. When the crushing nail 27 is not needed to work, the electric telescopic rod 25 is shortened to move the adsorption cover 12 away from the outside of the magnetic block 26, so that the crushing nail 27 is always in an upward state, and will neither pass through the nail hole 22 nor crush the road surface; when the crushing nail 27 is needed to work, the electric telescopic rod 25 is started to extend to move the adsorption cover 12 to the outside of the magnetic block 26, and the two are transmitted under the action of magnetic attraction, the power shaft 11 drives the magnetic block 26 to rotate, and the magnetic block 26 drives the adsorption cover 12 to rotate, and then continuously hits the top of the crushing nail 27, so that the bottom of the crushing nail 27 continuously breaks the road surface, and the top of the crushing nail 27 is hemispherical, which is convenient for the protrusion around the adsorption cover 12 to hit the crushing nail 27;

[0069] The power shaft 11 drives the driving disk 21 to rotate, and the driving disk 21 drives the piston connecting rod group 29 to reciprocate, so that the bottom of the piston connecting rod group 29 continuously hammers the impact column 24. All parts in the protective shell 1 are directly connected to the protective shell 1, but not to the tamping plate 7. Therefore, under the impact, the tamping plate 7 will be downward, while the entire protective shell 1 and the internal parts will be upward. Under the action of gravity, the power generated by the impact will eventually become the force of the tamping plate 7 to press the ground. Under high-speed impact, the tamping plate 7 vibrates at a high frequency, thereby effectively compacting the asphalt repair material. Under high-frequency vibration, the equipment will have a smaller contact area with the ground and a temporary floating state, so the entire equipment can be pushed without the electric wheel 4, and the movement of the equipment can be controlled by pushing the operating arm 2;

[0070] In order to ensure that the moving trajectory of the tamping plate 7 can only move up and down, multiple spring telescopic rods 14 are connected between the protective shell 1 and the tamping plate 7, so that the tamping plate 7 can only move up and down under the impact of the piston connecting rod assembly 29, while also ensuring the stable reciprocating working process of the piston connecting rod assembly 29.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An asphalt pavement crack repair device, characterized in that: The invention comprises an engine (10), wherein the output end of the engine (10) is fixedly connected to a horizontally arranged power shaft (11), a cutting disc (6) is arranged on one side of the engine (10), a protective cover (5) is arranged on the outer side of the cutting disc (6), a driving arm (19) for adjusting the height of the cutting disc (6) is arranged on the side of the engine (10) away from the power shaft (11), a belt (18) for transmitting power to the cutting disc (6) is sleeved on the outer side of the power shaft (11), a tamping plate (7) is arranged below the engine (10), a driving plate (21) for driving the tamping plate (7) to vibrate is fixedly connected to the middle of the power shaft (11), a crushing nail (27) for crushing an asphalt pavement is also arranged on one side of the engine (10), an adsorption cover (12) for driving the crushing nail (27) to rise and fall is also transmission-connected to the end of the power shaft (11), and two electric wheels (4) capable of rising and falling are arranged on the outer side of the engine (10).

2. The asphalt pavement crack repairing device according to claim 1, characterized in that: A protective shell (1) is fixedly connected to the outside of the engine (10); a lifting platform (3) is arranged on one side of the protective shell (1); a vertically arranged hydraulic rod is fixedly connected between the lifting platform (3) and the protective shell (1); the electric wheel (4) is installed on both sides of the lifting platform (3); an operating arm (2) is rotatably connected to the outside of the protective shell (1); and a folding wheel (8) is rotatably connected to the side of the protective shell (1) away from the lifting platform (3).

3. The asphalt pavement crack repairing device according to claim 2, characterized in that: A horizontally arranged transmission shaft (17) is fixedly connected to the middle of the cutting disc (6); one end of the transmission shaft (17) is located inside the protective shell (1); the belt (18) is sleeved on the outside of the transmission shaft (17) and the power shaft (11); a restraining sleeve (16) is rotatably sleeved on the outside of the transmission shaft (17); and the driving arm (19) is respectively fixedly connected to the restraining sleeve (16) and the protective cover (5).

4. The asphalt pavement crack repairing device according to claim 3, characterized in that: The driving arm (19) is rotatably connected to the outer side of the engine (10); a positioning rod (20) vertically arranged to the driving arm (19) is slidably sleeved on the outer side of the driving arm (19) near the top; an arc-shaped operating groove (9) is opened on the outer side of the protective shell (1); and the positioning rod (20) is located in the operating groove (9).

5. The asphalt pavement crack repairing device according to claim 4, characterized in that: The surface of the tamping plate (7) is provided with a nail hole (22) for passing a crushing nail (27); a sliding sleeve (15) is sleeved on the outer side of the crushing nail (27); the sliding sleeve (15) is fixedly connected to the protective shell (1) via a reinforcing frame (13); a vertical spring (28) is fixedly connected between the top of the crushing nail (27) and the inside of the sliding sleeve (15); and the adsorption cover (12) is capable of rotating and continuously striking the crushing nail (27) from the top.

6. The asphalt pavement crack repairing device according to claim 5, characterized in that: The end of the power shaft (11) is fixedly connected to a magnetic block (26) made of a magnetic material, the adsorption cover (12) is sleeved on the outside of the magnetic block (26), the magnetic block (26) is made of a magnetic material, one end of the adsorption cover (12) is fixedly connected to an electric telescopic rod (25) for driving the adsorption cover (12) to move horizontally, and the surface of the adsorption cover (12) is fixedly connected to two symmetrically arranged protrusions.

7. The asphalt pavement crack repairing device according to claim 6, characterized in that: The driving disk (21) is composed of two disks, which are fixedly connected by an eccentric rod. A piston connecting rod group (29) is arranged between the two disks. A fixing sleeve (23) is fixedly connected to the inside of the protective shell (1). The bottom translation end of the piston connecting rod group (29) is slidably engaged in the fixing sleeve (23). The rotating end of the piston connecting rod group (29) is sleeved on the outside of the eccentric rod. The top of the tamping plate (7) is fixedly connected to an impact column (24), and the impact column (24) is slidably engaged in the fixing sleeve (23).

8. The asphalt pavement crack repairing device according to claim 7, characterized in that: The tamping plate (7) is made of solid metal and is arranged in a flat shape. A plurality of vertically arranged spring telescopic rods (14) are fixedly connected between the top of the tamping plate (7) and the protective shell (1) and the engine (10).

9. A method for repairing cracks in an asphalt pavement, characterized in that: The repair method is applicable to an asphalt pavement crack repair device as described in any one of claims 1 to 8 above, and the method is specifically: S1: Marking the road surface to be repaired, framing the damaged area in the markings, placing the device on the road surface to be repaired, aligning the cutting disc (6) with the markings drawn in advance, and then starting the rotation of the cutting disc (6). Using the driving arm (19), the height of the cutting disc (6) is adjusted so that it and the protective cover (5) sink together, and the cutting disc (6) cuts the asphalt road surface; S2: During the cutting process and in the subsequent individual stages, the electric telescopic rod (25) can be activated to extend, so that the adsorption cover (12) moves to the outside of the magnetic block (26), and the two are transmitted under the action of magnetic attraction, the power shaft (11) drives the magnetic block (26) to rotate, and the magnetic block (26) drives the adsorption cover (12) to rotate, and then continuously hits the top of the crushing nail (27), so that the bottom of the crushing nail (27) continuously crushes the road surface; S3: After the crushing is completed, the hydraulic rod is shortened to allow the lifting platform (3) to rise relative to the protective shell (1), so that the electric wheel (4) no longer contacts the ground. At the same time, the folding wheel (8) is flipped upward, so that only the tamping plate (7) contacts the ground. The engine (10) drives the power shaft (11) and the drive disc (21) to rotate. The drive disc (21) can drive the tamping plate (7) at the bottom to vibrate at a high frequency. Since the bottom of the tamping plate (7) is in contact with the ground, the road repair material and the asphalt foundation are compacted under the action of the high-frequency vibration.

10. A method for repairing cracks in an asphalt pavement according to claim 9, characterized in that: The method of high-frequency vibration of the compacting plate (7) described in step S3 is specifically as follows: Q1: The engine (10) drives the driving plate (21) to rotate via the power shaft (11), and the driving plate (21) drives the piston connecting rod assembly (29) to reciprocate; Q2: The bottom of the piston connecting rod assembly (29) continuously hammers the impact column (24). All parts in the protective shell (1) are directly connected to the protective shell (1) but not to the tamping plate (7). Under the impact, the tamping plate (7) is turned downward, while the entire protective shell (1) and the internal parts are turned upward. Q3: Under the action of gravity, the power generated by the impact will eventually become the force of the compacting plate (7) pressing the ground. Under the high-speed impact, the compacting plate (7) vibrates at a high frequency, thereby compacting the asphalt repair material.

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