An efficient road cutting device

Abstract

The present invention discloses an efficient road surface cutting device, comprising a vehicle body, a cutting mechanism arranged on the vehicle body, and a driving mechanism for driving the vehicle body to move, wherein the cutting mechanism is used to cut at least two mutually parallel cutting seams, and the vehicle body is also provided with an excavating mechanism, which is used to excavate the portion between the two cutting seams; the efficient road surface cutting device provided by the present invention can complete the cutting at one time when in use, and at the same time, can crush the excised portion of the road surface, so that workers can clean up the excised road surface waste and improve the efficiency of trench opening.

Description

Technical Field

[0001] The invention relates to the technical field of cutting devices, and in particular to a highly efficient road surface cutting device. Background Art

[0002] During the construction of asphalt roads, grooves are opened on both sides of the road in parallel to the direction of the road with the help of cutting devices to prevent bulging and cracking of the road surface caused by thermal expansion and contraction. After the asphalt is paved, the cutting device is used to cut two parallel seams at the location where the grooves need to be opened on the road surface, and then the asphalt concrete between the two cut seams is removed.

[0003] For example, the patent application with publication number CN110409274B discloses a municipal road cutting machine, whose structure includes a driver, a shield, a blade, a cutter, and a handrail. The driver is embedded and connected to the cutter, the shield is connected to the cutter, and the handrails are installed at the rear ends of both sides of the cutter. The blade and the cutter are movably engaged. When the blade is cutting a slit on an inclined road surface, the blade can enhance the grip of the slit cut on the road surface through the teeth on the blade, so that the blade is not likely to cut a road slit shallower than a horizontal road surface due to the inclination of the road surface, resulting in different force strengths on the expansion joints of the road surface after cutting. The extrusion pressure generated by the force plate on the wet fine sand removal mechanism on the road slit can make the force plate swing inward along the bottom plate, and when the force plate loses the extrusion pressure generated by the wet fine sand on it, the reset bar can quickly push the force plate to rebound and reset, so that the force plate can bounce off the wet fine sand attached to its surface.

[0004] The existing cutting device needs to be used in batches or with two sets of cutting devices for cutting at the same time, and the part between the two cut seams is still a whole, which makes it inconvenient to remove the asphalt concrete between the cut seams, resulting in low efficiency in opening the groove. Summary of the invention

[0005] The object of the present invention is to provide a road surface cutting device with high groove opening efficiency.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An efficient road cutting device comprises a vehicle body, a cutting mechanism arranged on the vehicle body, and a driving mechanism for driving the vehicle body. The cutting mechanism is used to cut at least two mutually parallel cutting seams. The vehicle body is also provided with an excavating mechanism for excavating the portion between the two cutting seams.

[0008] The above-mentioned efficient road cutting device, the cutting mechanism includes a driving assembly and two or more sets of cutting blades arranged parallel to each other, the driving assembly is installed on the vehicle body, and the driving assembly is used to drive the cutting blades to rotate synchronously.

[0009] The above-mentioned efficient road surface cutting device has two groups of cutting blades, and the two groups of cutting blades are arranged opposite to each other.

[0010] The above-mentioned efficient road cutting device has an excavation mechanism including a rotating shaft and an excavation claw installed outside the rotating shaft. The excavation claw is arranged between two sets of cutting blades, and the excavation claw is arranged on the side of the cutting blade away from the moving direction of the vehicle body.

[0011] In the above-mentioned efficient road surface cutting device, the rotation direction of the digging claw is opposite to the rotation direction of the cutting blade.

[0012] In the above-mentioned efficient road cutting device, more than two digging claws are provided, and the digging claws are distributed in an array along the length direction of the rotating shaft.

[0013] In the above-mentioned efficient road cutting device, the distance between the cutting blades and the distance between the digging claws are both adjustable.

[0014] The above-mentioned efficient road cutting device also includes an adjusting mechanism, which is used to adjust the spacing between the two sets of cutting blades, and the adjusting mechanism is also used to adjust the overall distribution width of the digging claws.

[0015] The above-mentioned efficient road surface cutting device also includes a blocking mechanism, which is used to limit the cutting blade from approaching the road surface on one side of the vehicle body's traveling direction when the digging claw is digging.

[0016] In the above-mentioned efficient road cutting device, the baffle mechanism includes a baffle plate arranged along the rotation axis of the cutting blade, the baffle plate includes a first plate and a second plate whose relative positions can be adjusted, and the sides of the first plate and the second plate used for blocking are in the same plane.

[0017] In the above technical solution, the efficient road surface cutting device provided by the present invention can complete the cutting at one time when in use. At the same time, it can crush the cut part of the road surface, making it easier for workers to clean up the cut road surface waste and improving the efficiency of trench opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a side view of the present invention;

[0020] Figure 2 It is a front view of the present invention;

[0021] Figure 3 A top view showing the positional relationship between the cutting blade and the digging claw of the present invention;

[0022] Figure 4 A cross-sectional view showing the connection relationship between the digging claw and the rotating shaft of the present invention;

[0023] Figure 5 An exploded view of the rotating shaft of the present invention;

[0024] Figure 6 It is a schematic diagram of the installation of an excavation grab in another embodiment of the present invention;

[0025] Figure 7 It is a schematic diagram of the connection state of the cylinder, the connecting protrusion and the connecting sleeve in another embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Car body; 11. First bracket; 12. Second bracket; 13. Third bracket; 14. Fourth bracket; 2. Cutting mechanism; 21. Cutting blade; 22. Mounting shaft; 221. First shaft; 222. Second shaft; 3. Digging mechanism; 31. Digging claw; 311. Connecting sleeve; 312. Claw body; 313. Spring; 32. Rotating shaft; 321. First rod; 3211. First arc plate; 3212. First cylindrical block; 3213. Limit 1. first cylindrical block; 3214. first arc block; 322. second rod; 3221. second arc plate; 3222. second cylindrical block; 3223. second arc block; 33. fixing rod; 331. first pin shaft; 332. second pin shaft; 4. adjusting mechanism; 41. supporting plate; 42. threaded rod; 43. connecting rod; 5. blocking mechanism; 51. blocking plate; 511. first plate; 512. second plate; 513. long rod; 514. telescopic rod. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1-7 As shown, an embodiment of the present invention provides an efficient road cutting device, including a vehicle body 1, a cutting mechanism 2 arranged on the vehicle body 1, and a driving mechanism for driving the vehicle body 1 to move, the cutting mechanism 2 is used to cut at least two mutually parallel cutting seams, and the vehicle body 1 is also provided with an excavating mechanism 3, and the excavating mechanism 3 is used to excavate the part between the two cutting seams.

[0031] Specifically, the efficient road cutting device provided in this embodiment has a main body of a vehicle body 1, and a driving mechanism for driving the vehicle body 1 is provided on the vehicle body 1. This is a prior art. Optionally, the driving mechanism can use a motor or a prime mover in conjunction with a pulley, which is connected to the connecting shaft of at least one wheel on the vehicle body 1. The motor and the pulley cooperate to drive the corresponding wheel to rotate, so that the vehicle body 1 moves forward or backward. The vehicle body 1 is also provided with an adjustment component for adjusting the distance between the cutting mechanism 2 and the ground. The adjustment component can be used to adjust the inclination angle of the support surface of the vehicle body 1, thereby adjusting the distance between the cutting device and the ground. It can also be installed on the vehicle body 1 to directly drive the cutting mechanism 2 to move up and down as a whole, and adjust the cutting depth of the cutting mechanism 2 so that when cutting, the cutting work can be started from the middle of the asphalt pavement. This is a prior art and will not be repeated.

[0032] In this embodiment, the cutting mechanism 2 can adopt laser cutting, water jet cutting or blade cutting. When laser cutting is adopted, several laser emitters need to be arranged in a straight line, and this straight line is perpendicular to the moving direction of the vehicle body 1, so that when the vehicle body 1 moves forward with the laser emitter, the laser emitter can cut at least two parallel cutting seams. When water jet cutting is adopted, the arrangement of the water jet is consistent with the arrangement of the laser emitter when laser cutting is adopted.

[0033] In addition, the excavation mechanism 3 in this embodiment includes at least an excavation claw 31 and a driving member for driving the excavation claw 31. The driving member can adopt a rotary driving source or a linear driving source. When there are multiple parallel slits, the excavation claw 31 is located between the two outermost slits, that is, the excavation claw 31 is arranged in the area between the two leftmost and rightmost slits in the multiple groups of parallel slits.

[0034] When a rotary driving source is used, preferably, the digging claw 31 is an arc-shaped hard metal, and the rotary driving source drives the arc-shaped hard metal to rotate to dig the portion between the two cuts.

[0035] When a linear drive source is used, preferably, the digging claw 31 is a long strip of hard metal. The linear drive source first drives the long strip of digging claw 31 to be vertically inserted into the road surface, and then drives the long strip of digging claw 31 to move horizontally away from the vehicle body 1 to separate the cut part of the road surface. Among them, the rotary drive source and the linear drive source are both existing technologies and can be directly applied without further explanation.

[0036] The efficient road surface cutting device provided by the present invention can complete the cutting at one time when in use, and at the same time, can crush the cut-off part of the road surface, making it convenient for workers to clean up the cut road surface waste, thereby improving the efficiency of trench opening.

[0037] In an optional embodiment of the present invention, the cutting mechanism 2 includes a driving assembly and two or more groups of cutting blades 21 arranged parallel to each other. The driving assembly is installed on the vehicle body 1, and the driving assembly is used to drive the cutting blades 21 to rotate synchronously.

[0038] When cutting with the cutting blade 21, a first bracket 11 and a second bracket 12 are installed on the vehicle body 1, and a mounting shaft 22 is arranged between the first bracket 11 and the second bracket 12. The mounting shaft 22 is arranged horizontally and installed perpendicular to the moving direction of the vehicle body 1. Both ends of the mounting shaft 22 are rotatably connected to the first bracket 11 and the second bracket 12 respectively, and bearings are provided at positions corresponding to the mounting shaft 22 on the first bracket 11 and the second bracket 12. Each cutting blade 21 is in a plane parallel to each other, and the cutting blades 21 are all installed on the outer wall of the mounting shaft 22. When the mounting shaft 22 rotates, the cutting blade 21 does not undergo relative displacement with the mounting shaft 22. The driving component in this embodiment can adopt a motor, and a rotating shaft is connected to the output shaft of the motor. The rotating shaft is used to extend the length of the output shaft of the motor, and then the rotating shaft cooperates with gears or belts to transmit power to the mounting shaft 22, so that each cutting blade 21 rotates synchronously.

[0039] In this embodiment, a cutting blade 21 is used for cutting. Since its accessories are more commonly used and the cost of the device is low, it is convenient to purchase accessories for replacement when damage occurs during use. In addition, the operation of the device is more commonly used than water jet and laser cutting, and the requirements for users are lower.

[0040] Furthermore, two groups of cutting blades 21 are provided, and the two groups of cutting blades 21 are arranged opposite to each other.

[0041] Specifically, when two sets of cutting blades 21 are used for cutting, the two sets of cutting blades 21 can be respectively installed at the two ends of the mounting shaft 22. Optionally, the driving component can use a motor, the motor is installed on the vehicle body 1, and a pulley is installed on the mounting shaft 22. The output shaft of the motor is connected to the mounting shaft 22 through a belt, so that the motor drives the two sets of cutting blades 21 to rotate synchronously.

[0042] In the present embodiment, two groups of cutting blades 21 are used for cutting, which reduces the number of cutting blades 21 used and reduces the cost of the device. In addition, due to the reduction in the number of cutting blades 21, the sum of the friction between each cutting blade 21 and the road surface is reduced. Since the resistance encountered by the vehicle body 1 during movement comes from the friction between the wheels and the ground and the resistance generated by the cutting blades 21 during cutting, when two groups of cutting blades 21 are used, the resistance encountered by the vehicle body 1 during movement can be effectively reduced.

[0043] Furthermore, the excavation mechanism 3 includes a driving member, a rotating shaft 32 and an excavation claw 31 installed on the outside of the rotating shaft 32. The excavation claw 31 is arranged between the two sets of cutting blades 21, and the excavation claw 31 is arranged on the side of the cutting blades 21 away from the moving direction of the vehicle body 1. The driving member is used to drive the rotating shaft 32 to rotate.

[0044] Specifically, the digging claw 31 is arranged at Figure 1 On the left side of the cutting blade 21 in the view, preferably, the digging claw 31 is made of arc-shaped hard metal, a third bracket 13 and a fourth bracket 14 are provided on the vehicle body 1, two ends of the rotating shaft 32 are rotatably connected through the third bracket 13 and the fourth bracket 14 respectively, and bearings are provided at positions corresponding to the rotating shaft 32 on the third bracket 13 and the fourth bracket 14, and the digging claw 31 is installed on the outer wall of the rotating shaft 32, that is, the digging claw 31 is installed on the part of the rotating shaft 32 between the third bracket 13 and the fourth bracket 14. Such an arrangement can avoid interference between the rotating shaft 32 and the cutting blade 21, and the driving member is installed on the vehicle body 1. Optionally, the driving member is a motor, and the motor is connected to the rotating shaft 32 through a belt. During the movement of the vehicle body 1, the driving assembly drives the two groups of cutting blades 21 to cut two groups of parallel cutting seams on the road surface. At the same time, the driving member drives the rotating shaft 32 to rotate, and the rotating shaft 32 drives several digging claws 31 to rotate synchronously.

[0045] In this embodiment, since the digging claw 31 is arranged on the side of the cutting blade 21 away from the moving direction of the vehicle body 1, the digging claw 31 can dig the cracks cut by the two sets of cutting blades 21 when rotating, and continuously divide the part of the road surface between the two cutting seams into small pieces, so as to facilitate the processing of the cut part of the road surface.

[0046] Furthermore, the digging claw 31 is arc-shaped, and the rotation direction of the digging claw 31 is opposite to the rotation direction of the cutting blade 21 .

[0047] Specifically, since the digging claw 31 rotates in opposite directions to the cutting blade 21, when the digging claw 31 rotates to below the rotating shaft 32, it rotates toward the position where the cutting blade 21 is located. Assuming that the position where the digging claw 31 is inserted into the ground is the first point, and the position where the digging claw 31 passes through the ground is the second point, as shown in FIG. Figure 1 As shown, the first point is located on the side of the cutting blade 21 away from the traveling direction of the vehicle body 1. Figure 1 In the view, the vehicle body 1 moves forward from left to right, and the second point is between the two groups of cutting blades 21. Since the digging claw 31 enters the ground from the first point, the part of the ground between the two groups of cutting blades 21 is less affected, and the part of the ground between the two groups of cutting blades 21 will not expand toward the two groups of cutting blades 21 due to the compression of the road surface when the digging claw 31 is inserted, thereby causing the two groups of cutting blades 21 to be axially squeezed and stuck. In addition, when the digging claw 31 rotates from the first point to the second point, due to its arc-shaped setting, it can pry the ground between the first point and the second point from bottom to top, so that the ground between the two groups of cutting blades 21 arches upward, reducing the axial force exerted by the ground between the two groups of cutting blades 21 on the cutting blades 21, thereby reducing the cutting resistance of the cutting blades 21. At the same time, when the digging claw 31 passes through the first point, it can separate the part of the ground between the first point and the second point from the rest of the ground, achieving a crushing effect, so as to facilitate the cleaning of the cut part of the road surface.

[0048] In another embodiment of the present invention, more than two digging claws 31 are provided, and the digging claws 31 are evenly spaced along the length direction of the rotating shaft 32 , that is, the distances between the digging claws 31 are equal.

[0049] Specifically, since the device is used for cutting asphalt pavement, during use, the digging claw 31 needs to pass through the above-mentioned second point. Multiple groups of digging claws 31 are arranged and are arranged at equal intervals along the length direction of the rotating shaft 32, which reduces the setting width of a single digging claw 31 and makes it easier for the digging claw 31 to pass upward from the ground at the above-mentioned second point and tear the cut-off part of the road surface from the position of the second point.

[0050] Furthermore, the distance between the cutting blades 21 and the distance between the digging claws 31 are both adjustable, that is, the width of the two sets of parallel cutting slits is adjustable, and the distribution width of the digging claws 31 is also adjustable.

[0051] Specifically, for adjusting the cutting blade 21, the mounting shaft 22 is optionally configured as a first shaft 221 and a second shaft 222, the first shaft 221 is sleeved outside the second shaft 222, and a guide groove is provided on the inner wall of the first shaft 221, and a long guide strip is provided at a position corresponding to the guide groove on the outer wall of the second shaft 222, so that the mounting shaft 22 has a telescopic function while the first shaft 221 and the second shaft 222 cannot rotate relative to each other, and the end of the first shaft 221 away from the second shaft 222 is rotatably connected to the first bracket 11, and the end of the second shaft 222 away from the second shaft 222 is rotatably connected to the first bracket 11. The end of the first shaft 221 is rotatably connected to the second bracket 12, and the second bracket 12 is slidably connected to the vehicle body 1. A slide groove is provided on the vehicle body 1 to limit the sliding direction of the second bracket 12. The slide groove is opened along the length direction of the first shaft 221 and the second shaft 222. The driving component is connected to the first shaft 221 through the cooperation of a pulley and a belt. The two groups of cutting blades 21 are respectively fixed to the outer walls of the ends of the first shaft 221 and the second shaft 222 that are away from each other. For the extension and retraction of the mounting shaft 22, manual adjustment and electric adjustment can be adopted in specific implementation.

[0052] When manual adjustment is adopted, a locking piece needs to be set. Optionally, a threaded sleeve is set at one end of the first shaft 221 close to the second shaft 222. The threaded sleeve is used to lock the second shaft 222 on the first shaft 221 to ensure that the first shaft 221 and the second shaft 222 do not move relative to each other. When it is necessary to adjust the length of the mounting shaft 22, the threaded sleeve is rotated to release the lock on the second shaft 222, and then the relative position of the second shaft 222 and the first shaft 221 can be adjusted. After the adjustment is completed, the second shaft 222 is locked on the first shaft 221 again by the threaded sleeve. Locking by the threaded sleeve is an existing technology and can be directly applied without further explanation.

[0053] When electric adjustment is adopted, a first adjusting member can be installed on the vehicle body 1, and the output end of the first adjusting member is fixedly connected to the second bracket 12. Optionally, the first adjusting member adopts an electric push rod, and the main body of the electric push rod is fixed to the vehicle body 1 along the length direction of the rotating shaft 32, and the telescopic end of the electric push rod is connected to the second bracket 12. When the electric push rod is extended or shortened, it can drive the second bracket 12 to slide along the axial direction of the rotating shaft 32, and drive the second shaft 222 to slide on the first shaft 221, so as to realize the adjustment of the length of the installation shaft 22.

[0054] For the adjustment of the excavating claw 31, optionally, the rotating shaft 32 is set as a multi-section telescopic shaft composed of multiple telescopic sections, the diameters of the multiple telescopic sections gradually decrease, and the telescopic section with a larger diameter is mounted on the outside of the telescopic section with a smaller diameter, and the multiple telescopic sections can only slide along their own length direction, the telescopic section with the largest diameter is rotatably connected to the third bracket 13, that is, the connecting end of the telescopic section with the largest diameter and the third bracket 13 is a fixed end, and the exposed end of the telescopic section with the smallest diameter is rotatably connected to the fourth bracket 14, and the fourth bracket 14 is slidably connected to the vehicle body 1, that is, the connecting end of the telescopic section with the smallest diameter and the fourth bracket 14 is a telescopic end, and a slide groove is provided on the vehicle body 1 to limit the axial sliding of the fourth bracket 14 along the multi-section telescopic shaft, the excavating claw 31 is arranged one by one with the telescopic section, and is fixedly installed on the corresponding telescopic section, and the adjustment method of the multi-section telescopic shaft can also be manually or automatically adjusted by the above-mentioned adjustment method of the first shaft 221 and the second shaft 222, which will not be repeated.

[0055] In this embodiment, the cutting device can adjust the length of the mounting shaft 22 and the rotating shaft 32 according to the opening width of the groove, thereby changing the spacing between the two sets of cutting blades 21 and the overall distribution width of the digging claws 31 to adapt to the width of the groove to be opened, so that the digging claws 31 can well crush the part of the road surface that needs to be removed when opening grooves of different widths, and ensure that the crushed part can become a small block as a whole, which is convenient for cleaning the crushed part of the road surface and exposing the groove.

[0056] Furthermore, if Figure 1 As shown, it also includes an adjustment mechanism 4, which is used to adjust the spacing between the two groups of cutting blades 21, and the adjustment mechanism 4 is also used to adjust the overall distribution width of the digging claws 31. The overall distribution width of the digging claws 31 is also the distance between the opposite sides of the two groups of digging claws 31 at both ends of the rotating shaft 32.

[0057] Specifically, the adjustment mechanism 4 includes a driving part and a transmission part, the transmission part includes a connecting rod 43, one end of the connecting rod 43 is fixedly connected to the second bracket 12, and the other end of the connecting rod 43 is fixedly connected to the fourth bracket 14. Optionally, the driving part is an electric push rod, which is arranged along the sliding direction of the second bracket 12 and the fourth bracket 14, and the extended end of the electric push rod is connected to any one of the second bracket 12, the connecting rod 43 or the fourth bracket 14. The electric push rod pushes the second bracket 12, the connecting rod 43 and the fourth bracket 14 to slide synchronously, so as to synchronously adjust the extension and retraction of the mounting shaft 22 and the rotating shaft 32.

[0058] In this embodiment, the positions of the second bracket 12 and the fourth bracket 14 can be adjusted by one driving member, so that the overall distribution width of the cutting blade 21 and the digging claw 31 can be adjusted synchronously, which has a simple structure and reduces the cost of the device.

[0059] Furthermore, the driving unit includes a support plate 41 installed on the vehicle body 1, and a threaded rod 42 is threadedly connected to the support plate 41, and the threaded rod 42 passes through the support plate 41. To ensure that the sliding of the second bracket 12 and the fourth bracket 14 will not interfere with the arrangement of the cutting blade 21, the second bracket 12 and the fourth bracket 14 are both arranged between the two cutting blades 21, and the upper end of the fourth bracket 14 passes through the vehicle body 1 and extends to be higher than the threaded rod 42, and the end of the threaded rod 42 is rotatably connected to the upper end of the fourth bracket 14. When the threaded rod 42 rotates, it can drive the threaded rod 42 of the fourth bracket 14 to move in the length direction, so as to adjust the fourth bracket 14 to slide on the vehicle body 1 through the threaded rod 42. Since the second bracket 12 is connected to the fourth bracket 14 through the connecting rod 43, when the fourth bracket 14 slides, it can drive the second bracket 12 to slide synchronously, thereby realizing the extension and retraction of the multi-section telescopic shaft to adjust the distribution width of the excavating claw 31.

[0060] In this embodiment, the adjustment mechanism 4 can adjust the length of the mounting shaft 22 and the rotating shaft 32 at the same time, and because the threaded rod 42 is threadedly connected to the support plate 41, when the threaded rod 42 rotates one circle, the movement distance along its own axis is very small, so that the overall distribution width of the two sets of cutting blades 21 and the digging claws 31 can be accurately adjusted.

[0061] In another embodiment of the present invention, Figure 5 As shown, the rotating shaft 32 includes a first rod 321 and a second rod 322. The first rod 321 is composed of a plurality of first arc-shaped plates 3211 and a first cylindrical block 3212. The plurality of first arc-shaped plates 3211 are equiangularly distributed on the same end surface of the first cylindrical block 3212. The second rod 322 is composed of a plurality of second arc-shaped plates 3221 and a second cylindrical block 3222. The plurality of second arc-shaped plates 3221 are equiangularly distributed on the same end surface of the second cylindrical block 3222. The first arc-shaped plates 3211 and the second arc-shaped plates 3221 are staggered, and the diameter of the circle surrounded by the first arc-shaped plates 3211 is equal to the diameter of the circle surrounded by the second arc-shaped plates 3221, that is, the outer diameters of the first rod 321 and the second rod 322 are equal. A first arc block 3214 is provided on the side wall of one end of the first arc plate 3211 away from the first cylindrical block 3212. The first arc block 3214 is distributed clockwise and contacts the adjacent second arc plate 3221. A second arc block 3223 is provided on the side wall of one end of the second arc plate 3221 away from the second cylindrical block 3222. The second arc block 3223 is distributed counterclockwise and contacts the adjacent first arc plate 3211. The inner wall of the first arc plate 3211 is connected to the limiting cylinder 3213, and the outer wall of the limiting cylinder 3213 contacts the inner wall of the second arc plate 3221, that is, the diameter of the limiting cylinder 3213 is equal to the inner diameter of the second rod 322.

[0062] The excavating claw 31 comprises a connecting sleeve 311 and a claw body 312. The claw body 312 is mounted on the side wall of the connecting sleeve 311. The connecting sleeve 311 is mounted on the outside of the first rod 321 and the second rod 322. A spring 313 is arranged between two adjacent connecting sleeves 311. The spring 313 is mounted on the outside of the first rod 321 and the second rod 322. A limiting seat is installed on the connecting sleeve 311. An extension protruding toward the bottom of the vehicle body 1 is arranged on the outer wall of the second cylindrical block 3222. A fixing rod 33 is installed on the extension. The fixing rod 33 is arranged along the length direction of the second rod 322. The end of the fixing rod 33 passes through a plurality of limiting seats on the connecting sleeve 311 in sequence. The first cylindrical block 3212 and the second cylindrical block 3222 are connected to each other. The diameter of the column block 3222 is larger than the inner diameter of the connecting sleeve 311. When the device is in use, the connecting sleeves 311 on the two sides can contact the first cylindrical block 3212 and the second cylindrical block 3222 respectively. In this embodiment, the first cylindrical block 3212 is rotatably connected to the third bracket 13 arranged on the vehicle body 1, and the second cylindrical block 3222 is rotatably connected to the fourth bracket 14. When the threaded rod 42 drives the fourth bracket 14 to slide on the vehicle body 1, the fourth bracket 14 drives the second cylindrical block 3222 to move. At this time, the second cylindrical block 3222 drives the second rod 322 and the first rod 321 to slide relative to each other, thereby changing the length of the rotating shaft 32 and realizing the position adjustment of the connecting sleeve 311.

[0063] In this embodiment, since the connecting sleeve 311 is directly mounted on the outside of the first rod 321 and the second rod 322, and the outer diameters of the first rod 321 and the second rod 322 are equal, that is, the connecting sleeve 311 can slide axially along the first rod 321 and the second rod 322. Since a spring 313 is provided between two adjacent connecting sleeves 311, when the length of the rotating shaft 32 changes, the deformation of the spring 313 changes accordingly, and the deformation of each spring 313 is roughly equal, so that the spacing between the connecting sleeves 311 is always approximately equal in length. When excavating, each claw body 312 can be evenly distributed, so that the spacing between the contact points of the claw body 312 and the road surface is equal. This makes it possible for the claw body 312 to lift the road surface from bottom to top, and the spacing between the contact points of the road surface and the claw body 312 is equal, so that the road surface cut-off portion can be fully lifted, further improving the crushing effect of the excavating claw 31 on the road surface portion that needs to be cut off.

[0064] Furthermore, the claw bodies 312 are equiangularly distributed along the circumference of the rotating shaft 32 .

[0065] Specifically, Figure 6As shown, viewed from the end face of the rotating shaft 32, the angles between the two adjacent claw bodies 312 are equal. In the process of the rotating shaft 32 rotating and driving the claw bodies 312 to rotate, each claw body 312 can contact the road surface in turn. With this arrangement, the claw body 312 that contacts the road surface first can lift up a part of the road surface first, so that the part of the road surface corresponding to the claw body 312 behind becomes soft, thereby reducing the digging resistance of the claw body 312 that contacts the road surface behind.

[0066] Furthermore, the number of digging claws 31 is an odd number, and a limit block is provided on the inner side of the connecting sleeve 311 corresponding to the middle digging claw 31, and the limit block includes a cylinder and a connecting protrusion, and the cylinder is provided on the inner side of the first rod 321 and the second rod 322, and is tightly attached to the inner walls of the first rod 321 and the second rod 322, and the connecting protrusion extends outward from the opening between the first arc block 3214 and the second arc block 3223 on the first rod 321 and the second rod 322, and the part of the connecting protrusion on the outer side of the first rod 321 and the second rod 322 is connected to the corresponding connecting sleeve 311.

[0067] Specifically, when the rotating shaft 32 is in the extended state, the connection strength at the junction of the first rod 321 and the second rod 322 is the weakest. Since the number of the digging claws 31 is a cardinality, and the digging claws 31 are evenly spaced on the rotating shaft 32, when the rotating shaft 32 is extended or retracted, there is always a group of connecting sleeves 311 at the junction of the first rod 321 and the second rod 322. At this time, the cylinder arranged on the inner side of the middle connecting sleeve 311 can support the junction of the first rod 321 and the second rod 322, and form a whole with the corresponding connecting sleeve 311, and the inner and outer sides strengthen and fix the junction of the first rod 321 and the second rod 322, thereby improving the structural strength of the junction of the first rod 321 and the second rod 322 and protecting the rotating shaft 32.

[0068] Furthermore, the fixing rod 33 includes a first pin shaft 331 and a second pin shaft 332 arranged along the length direction of the rotating shaft 32, the first pin shaft 331 and the second pin shaft 332 are respectively arranged corresponding to the first rod 321 and the second rod 322, and the first pin shaft 331 and the second pin shaft 332 are staggered, the limiting seats arranged on the connecting sleeve 311 on the first rod 321 are all mounted on the first pin shaft 331, and the first pin shaft 331 is fixedly connected to the extension portion on the second cylindrical block 3222, the limiting seats arranged on the connecting sleeve 311 on the second rod 322 are all mounted on the second pin shaft 332, two groups of limiting seats are arranged on the connecting sleeve 311 in the middle, and the limiting seats on the middle connecting sleeve 311 are respectively mounted on the first pin shaft 331 and the second pin shaft 332, and the end of the second pin shaft 332 away from the first pin shaft 331 is fixed to the corresponding limiting seat.

[0069] Specifically, Figure 6As shown, the first pin shaft 331 and the second pin shaft 332 are parallel to each other and staggered. When the connecting sleeve 311 is provided with five groups, the limiting seats provided on the first three groups of connecting sleeves 311 are set on the first pin shaft 331, and the limiting seats provided on the last three groups of connecting sleeves 311 are set on the second pin shaft 332, and the end of the first pin shaft 331 away from the second pin shaft 332 is fixedly connected to the extension portion provided on the second cylindrical block 3222, and the end of the second pin shaft 332 away from the first pin shaft 331 is fixedly connected to the last group of connecting sleeves 311. The limiting seat on the rotating shaft 32 is fixedly connected, and when the extension of the rotating shaft 32 is the maximum, the distance between the staggered ends of the first pin shaft 331 and the second pin shaft 332 is the smallest. Since the first pin shaft 331 and the second shaft 222 are staggered, the rotating shaft 32 has a larger expansion space while ensuring that the fixing rod 33 does not contact the two cutting blades 21, that is, the digging claws 31 at both ends of the rotating shaft 32 can be set closer to the two cutting blades 21, so that the digging claws 31 can fully dig the ground between the two cutting seams.

[0070] In another embodiment of the present invention, a blocking mechanism 5 is further included. When the digging claw 31 is digging, the blocking mechanism 5 is used to limit the cutting blade 21 from approaching the road surface on one side of the moving direction of the vehicle body 1.

[0071] Specifically, since the digging claw 31 first lifts up the part of the road surface to be removed and then tears it, and the digging claw 31 is arranged near the mounting shaft 22 of the cutting blade 21, when the device is used, the digging claw 31 will lift up the uncut part of the road surface. At this time, since the uncut part of the road surface is deformed and becomes soft due to being lifted up, the cutting blade 21 cannot cut normally. The setting of the blocking mechanism 5 can limit the uncut part of the road surface so that the uncut part of the road surface will not be deformed. , or reduce the deformation of the uncut part of the road surface to a very small amount, so that the cutting blade 21 can cut normally. Optionally, the baffle mechanism 5 includes a baffle plate 51 and a linear adjustment member for adjusting the height of the baffle plate 51. The baffle plate 51 is placed horizontally, and a gap is left between the baffle plate 51 and the cutting blade 21. The linear adjustment member can be an electric push rod or a cylinder. When the device is in use, the baffle plate 51 can prevent the excavating claw 31 from lifting the part of the road surface that has not been cut, that is, the road surface is on the side of the cutting blade 21 close to the traveling direction of the vehicle body 1, affecting the cutting effect of the road surface.

[0072] Furthermore, the blocking mechanism 5 includes a blocking plate 51 arranged along the rotation axis of the cutting blade 21, and the blocking plate 51 includes a first plate 511 and a second plate 512 whose relative positions can be adjusted, and the sides of the first plate 511 and the second plate 512 for blocking are in the same plane.

[0073] Specifically, the blocking surfaces of the first plate 511 and the second plate 512 are in the same plane, that is, the side contacting the ground. Notches are alternately provided on the first plate 511 and the second plate 512, and the first plate 511 and the second plate 512 are connected by a long rod 513 so that the blocking surfaces of the first plate 511 and the second plate 512 can be in the same horizontal plane. The structure of the first plate 511 and the second plate 512 is as follows: Figure 3 As shown, connecting blocks are installed on both the first plate 511 and the second plate 512. The connecting blocks are arranged on the sides of the first plate 511 and the second plate 512 away from the blocking surface. One end of the long rod 513 is fixedly installed on one connecting block, and the other end of the long rod 513 passes through the other connecting block.

[0074] Among them, the adjustment methods of the first plate 511 and the second plate 512 are divided into manual adjustment and electric adjustment. When manual adjustment is adopted, it is necessary to lock with the help of bolts and other components. This is the existing technology and will not be repeated. When electric adjustment is adopted, it is optional to use an electric push rod to connect the main body and the extended end of the electric push rod to the first plate 511 and the second plate 512 respectively, so as to adjust the relative position of the first plate 511 and the second plate 512 by the extension and retraction of the electric push rod. When the device is used to open grooves of different widths, the length of the baffle plate 51 can be consistent with the adjustment width of the cutting blade 21, so as to facilitate comprehensive blocking work.

[0075] Furthermore, scales can be marked on the long rod 513, and the second plate 512 can be connected to the fourth bracket 14, and the first plate 511 can be connected to the vehicle body 1. At this time, the relative position of the first plate 511 and the vehicle body 1 cannot be adjusted, and the threaded rod 42 drives the fourth bracket 14 to move, so as to achieve the adjustment of the relative position of the first plate 511 and the second plate 512, and comprehensively block the part of the road surface that has not been cut. Rubber pads can also be set at the position where the connecting block is penetrated by the long rod 513. When adjusting the length of the baffle plate 51, the dust attached to the long rod 513 can be wiped off, so that the scale on the long rod 513 can be clearly seen for reading, and the overall distribution width of the two sets of cutting blades 21 and the excavating claws 31 can be adjusted.

[0076] Furthermore, the vehicle body 1 is provided with a height adjustment member. At this time, the first plate 511 is connected to the vehicle body 1 through a telescopic rod 514, and the second plate 512 is connected to the fourth bracket 14 through another telescopic rod 514. The height adjustment member is used to adjust the overall height of the baffle plate 51. Optionally, the height adjustment member adopts an electric push rod, which is installed on the vehicle body 1 and the telescopic end of the electric push rod is connected to the first plate 511, that is, the first plate 511 can only move along the length direction of the telescopic rod 514.

[0077] Specifically, the height adjustment member drives the first plate 511 and the second plate 512 to move along the length direction of the telescopic rod 514 to adapt to different road surfaces. At this time, since the second plate 512 is restricted by the long rod 513, it moves synchronously with the first plate 511. Moreover, when the threaded rod 42 is rotated, the fourth bracket 14 can drive the second plate 512 to move along the restricted direction of the long rod 513 through the corresponding telescopic rod 514, thereby realizing the adjustment of the overall length of the baffle plate 51.

[0078] In this embodiment, when the device is in use, the height of the baffle plate 51 can be adjusted by a height adjusting member, so that the baffle plate 51 can be used to open grooves of different depths.

[0079] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An efficient road cutting device, comprising a vehicle body, a cutting mechanism arranged on the vehicle body, and a driving mechanism for driving the vehicle body, characterized in that: The cutting mechanism is used to cut at least two parallel cutting seams. The vehicle body is also provided with an excavating mechanism, which is used to excavate the portion between the two cutting seams. The cutting mechanism includes a driving assembly and two or more groups of cutting blades arranged in parallel with each other. The driving assembly is installed on the vehicle body. The driving assembly is used to drive the cutting blades to rotate synchronously. Two groups of cutting blades are arranged, and the two groups of cutting blades are arranged opposite to each other. The excavating mechanism includes a driving member, a rotating shaft, and an excavating claw installed outside the rotating shaft. The excavating claw is arranged between the two groups of cutting blades, and the excavating claw is arranged on the side of the cutting blade away from the moving direction of the vehicle body. The driving member is used to drive the rotating shaft to rotate. The excavating claw includes a connecting sleeve and a claw body. The claw body moves along The rotating shaft is equiangularly distributed in the circumferential direction, the claw body is installed on the side wall of the connecting sleeve, the rotating shaft includes a first rod and a second rod, the connecting sleeve is sleeved on the outside of the first rod and the second rod, and a spring is arranged between two adjacent connecting sleeves, the spring is sleeved on the outside of the first rod and the second rod, and a limited seat is installed on the connecting sleeve, the outer wall of the second cylindrical block is provided with an extension protruding to the bottom of the vehicle body, and a fixing rod is installed on the extension, the fixing rod is arranged along the length direction of the second rod, and the end of the fixing rod sequentially passes through several limiting seats on the connecting sleeve, the first rod is composed of several first arc plates and a first cylindrical block, and the several first arc plates are equiangularly distributed on the same end face of the first cylindrical block, and the second rod is composed of several second arc plates and the first cylindrical block. The invention is composed of two cylindrical blocks, a plurality of second arc plates are equiangularly distributed on the same end face of the second cylindrical block, the first arc plates and the second arc plates are staggered, and the diameter of the circle surrounded by the first arc plates is equal to the diameter of the circle surrounded by the second arc plates, that is, the outer diameters of the first rod and the second rod are equal, a first arc block is arranged on the side wall of the end of the first arc plate away from the first cylindrical block, the first arc blocks are arranged clockwise, and the first arc block contacts the adjacent second arc plate, a second arc block is arranged on the side wall of the end of the second arc plate away from the second cylindrical block, the second arc blocks are arranged counterclockwise, and the second arc block contacts the adjacent first arc plate, the inner wall of the first arc plate is connected to a limiting cylinder, and the limiting cylinder The outer wall of the cylinder contacts the inner wall of the second arc plate, and the fixed rod includes a first pin and a second pin arranged along the length direction of the rotating shaft, the first pin and the second pin are respectively arranged corresponding to the first rod and the second rod, and the first pin and the second pin are staggered, the limit seats arranged on the connecting sleeve on the first rod are all mounted on the first pin, and the first pin is fixedly connected to the extension portion on the second cylindrical block, the limit seats arranged on the connecting sleeve on the second rod are all mounted on the second pin, two groups of limit seats are arranged on the connecting sleeve in the middle, and the limit seats on the middle connecting sleeve are respectively mounted on the first pin and the second pin, and the end of the second pin away from the first pin is fixed to the corresponding limit seat.

2. An efficient road surface cutting device according to claim 1, characterized in that: The digging claw is arc-shaped, and the rotation direction of the digging claw is opposite to the rotation direction of the cutting blade.

3. An efficient road surface cutting device according to claim 2, characterized in that: There are more than two digging claws, and the digging claws are evenly distributed along the length direction of the rotating shaft.

4. The efficient road surface cutting device according to claim 3, characterized in that: The distance between the cutting blades and the distance between the digging jaws are adjustable.

5. An efficient road surface cutting device according to any one of claims 1 to 4, characterized in that: The utility model also comprises an adjusting mechanism, which is used for adjusting the distance between the two groups of cutting blades, and the adjusting mechanism is also used for adjusting the overall distribution width of the digging claws.

6. The efficient road surface cutting device according to claim 5, characterized in that: The utility model also comprises a blocking mechanism, which is used for limiting the cutting blade from approaching the road surface on one side of the vehicle body in the traveling direction when the digging claw is digging.

7. An efficient road surface cutting device according to claim 6, characterized in that: The baffle mechanism comprises a baffle plate arranged along the rotation axis of the cutting blade, the baffle plate comprises a first plate and a second plate whose relative positions can be adjusted, and the sides of the first plate and the second plate used for baffle are in the same plane.

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