Pavement joint cutting device for highway engineering construction
By introducing a grinding cutter disc that works in conjunction with a cutting cutter disc in the road surface joint cutting device, the problem of sharp and rough joint edges has been solved, resulting in smoother joint edges and improved road surface durability.
Patent Information
- Application Number
- CN202511762297.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-02-27
AI Technical Summary
Existing road surface cutting devices produce sharp and rough edges at the joints during cutting, which makes them prone to damage when driven by wheels, affecting road surface quality.
Design a road surface joint cutting device for highway construction. The device uses a grinding edge cutter and a cutting edge cutter coaxially. The grinding edge is used to grind the edge of the joint. The height is adjusted by a telescopic cylinder to ensure that the grinding edge is in close contact with the edge of the joint, eliminating sharp and rough shapes.
The grinding operation of the edge groove makes the edge of the contraction joint smoother, increases its strength, disperses wheel stress, and prolongs the time when the road surface maintains good quality.
Smart Images
Figure CN121575657A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of highway engineering construction, and particularly relates to a road surface cutting device for highway engineering construction. BACKGROUND
[0002] The road surface cutting device is an auxiliary device for cutting joints of concrete road surface and asphalt road surface to meet the requirements of winter shrinkage and prevent thermal expansion in summer, and improve the service life of the road. The joint cut on the road surface is called a shrinkage joint, and the existence of the shrinkage joint is of great significance for protecting the road surface.
[0003] However, when the cutting cutter rotates to cut the joint, although a straight shrinkage joint can be cut, the edges of the joint on both sides are relatively sharp and rough. When a vehicle passes through the joint, the edges of the joint are subjected to concentrated stress caused by the wheels of the vehicle, and the force area of the edges in this form is small, so that the edges on both sides of the joint are easily damaged, affecting the quality of the road surface. SUMMARY
[0004] The technical problem to be solved by the present application is to provide a road surface cutting device for highway engineering construction, which can polish the edges of the cut shrinkage joint, eliminate the sharp and rough form, improve the strength, and make the road surface maintain good quality for a longer period.
[0005] The technical scheme adopted by the present application is to provide a road surface cutting device for highway engineering construction, which comprises a mounting table and a plurality of rollers. The rollers are respectively arranged on the front and rear sides below the mounting table, and the rollers are respectively provided with wheel seats. The rollers are rotationally connected with the corresponding wheel seats. The mounting table is connected with the wheel seats through telescopic cylinders. The telescopic cylinders are used to adjust the height distance between the rollers and the mounting table. The lower side of the mounting table is fixedly provided with a cover. The cover is rotationally connected with a cutting cutter in the inside of the cover. The cover covers the upper part of the cutting cutter. The cutting cutter is driven by a cutting motor connected to the cover. The cover is also provided with a shrinkage joint edge polishing assembly. The shrinkage joint edge polishing assembly comprises a polishing cutter rotationally connected in the cover. The cover covers the upper part of the polishing cutter. The polishing cutter is arranged on the rear side of the cutting cutter and is linked with the cutting cutter through a transmission member. The polishing cutter and the cutting cutter are arranged on the same vertical plane, and the axial directions of the two are parallel to the axial direction of the roller. The edges of the two ends of the polishing cutter in the axial direction are respectively provided with polishing grooves in the circumferential direction. The rotation of the polishing cutter is used to polish the edges on both sides of the shrinkage joint of the road surface.
[0006] Further optimization of the technical scheme, the rollers on the front side of the mounting table of the road surface cutting device for highway engineering construction are coaxially corresponding. The rollers on the rear side of the mounting table are coaxially corresponding. The wheel seats on the front side of the mounting table are connected with one telescopic cylinder, and the wheel seats on the rear side of the mounting table are connected with another telescopic cylinder.
[0007] Further optimize the technical scheme, a kind of transmission member of road surface cutting joint device for highway engineering construction includes driving pulley fixed coaxially with cutting cutter, driven pulley fixed coaxially with edge grinding cutter;Driving pulley and driven pulley are connected by transmission belt.
[0008] Further optimize the technical scheme, the axial section of the edge grinding groove of the road surface cutting joint device for highway engineering construction is concave arc structure.
[0009] Further optimize the technical scheme, a water tank and water pump are fixed on the mounting table of the road surface cutting joint device for highway engineering construction;Water pump is communicated with water tank by water suction pipe;Water pump is connected with spray head for spraying water to the surface of cutting cutter and edge grinding cutter by drain pipe.
[0010] Further optimize the technical scheme, the spray head of the road surface cutting joint device for highway engineering construction is fixed inside the upper side of the cover;Spray head sprays water downward to the surface of cutting cutter and edge grinding cutter.
[0011] Further optimize the technical scheme, a connecting frame is fixed on the lower side of the mounting table of the road surface cutting joint device for highway engineering construction;Reference wheel is rotatably connected on the connecting frame;Reference wheel is coaxial with edge grinding cutter;The diameter of reference wheel is greater than the diameter of inner circle of edge grinding groove, and less than the diameter of outer circle of edge grinding groove.
[0012] The beneficial effects of the present application are: Edge grinding cutter and cutting cutter are in the same vertical plane, and the axial direction of both is parallel to the axial direction of roller, so that cutting cutter and edge grinding cutter can travel with the rolling of roller, to realize cutting joint action and grinding operation on contraction joint. Telescopic cylinder is used to adjust the height distance between roller and mounting table, and roller is respectively arranged on the front and rear sides below mounting table, and the height distance between roller and mounting table is adjusted by front and rear telescopic cylinders, to adjust the depth of cutting cutter into road surface, and adjust the depth of edge grinding cutter into contraction joint, to ensure that edge grinding groove can smoothly grind the edges of both sides of road surface contraction joint. The grinding operation of edge grinding groove on the edges of both sides of road surface contraction joint can eliminate the sharp and rough shape of contraction joint edges, to make them smoother, improve the firmness, and avoid damage when wheel rolls, to make the road surface maintain good quality for a long time. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The structure of the present application is shown in the figure; Figure 2 The structure of the present application is shown in the figure; Figure 1 The state diagram of roller under left view angle; Figure 3 The state diagram of roller under left view angle; Figure 1 The state diagram of reference wheel under left view angle; Figure 4 The state diagram of contraction joint after grinding.
[0014] In the figure, 1, mounting table; 2, roller; 3, wheel seat; 4, telescopic cylinder; 5, cover shell; 6, cutting cutter; 7, cutting motor; 8, edge grinding cutter; 9, edge grinding groove; 10, driving pulley; 11, driven pulley; 12, transmission belt; 13, water tank; 14, water pump; 15, water suction pipe; 16, drain pipe; 17, spray head; 18, connecting frame; 19, reference wheel; 20, shrinkage joint. DETAILED DESCRIPTION
[0015] The application will be further described in detail below in combination with the drawings and specific embodiments.
[0016] As Figure 1 shown, a pavement joint cutting device for highway engineering construction, comprising a mounting table 1 and a plurality of rollers 2; the rollers 2 are respectively arranged on the front and rear sides below the mounting table 1, and each roller 2 is provided with a wheel seat 3 outside; the roller 2 is rotationally connected with the corresponding wheel seat 3; the mounting table 1 is connected with the wheel seat 3 through a telescopic cylinder 4; the telescopic cylinder 4 is used for adjusting the height distance between the roller 2 and the mounting table 1; the mounting table 1 is fixed with a cover shell 5 on the lower side; the cover shell 5 is rotationally connected with a cutting cutter 6 inside; the cover shell 5 covers the upper part of the cutting cutter 6; the cutting cutter 6 is driven by a cutting motor 7 connected on the cover shell 5; the cover shell 5 is further provided with an edge grinding assembly for shrinkage joint 20; The edge grinding assembly for shrinkage joint 20 comprises an edge grinding cutter 8 rotationally connected in the cover shell 5; the cover shell 5 covers the upper part of the edge grinding cutter 8; the edge grinding cutter 8 is arranged on the rear side of the cutting cutter 6 and is linked with the cutting cutter 6 through a transmission member; the edge grinding cutter 8 and the cutting cutter 6 are arranged on the same vertical plane, and the axial directions of the two are parallel to the axial direction of the roller 2; the edges of the two ends of the edge grinding cutter 8 are respectively provided with edge grinding grooves 9 in the circumferential direction; the rotation of the edge grinding cutter 8 is used for making the edge grinding grooves 9 grind the edges on both sides of the shrinkage joint 20 of the pavement.
[0017] When the device is used, the cutting motor 7 is started to drive the cutting cutter 6 to rotate, and then the front and rear telescopic cylinders 4 are respectively telescoped to adjust the height of the mounting table 1 from the ground on the front and rear sides. Through this adjustment of the mounting table 1, the cutting cutter 6 and the edge grinding cutter 8 are adjusted to the appropriate height position, so that the cutting cutter 6 can gradually cut into the pavement to the specified depth, and the edge grinding grooves 9 of the edge grinding cutter 8 can reach the position corresponding to the friction of the edges of the shrinkage joint 20. Of course, since the change of this height is generally determined, the telescoping amount of the front and rear telescopic cylinders 4 can be calibrated in advance, and the height adjustment can be quickly adjusted during each joint cutting operation.
[0018] When the cutting operation is performed, the device is pushed to move by the rolling guide of the rollers 2, so that the cutting disc 6 can perform the cutting action on the road surface in the moving direction, and the cutting disc 6 can perform the cutting action on the front side, and then the edges on both sides of the contraction joint 20 can be polished by the polishing groove 9 on the edge polishing disc 8 which is connected in linkage. When the cutting action on one contraction joint 20 is completed, the edge polishing disc 8 can complete the polishing process on the contraction joint 20. Through the polishing of the contraction joint 20, the sharp and rough edges of the contraction joint 20 can be eliminated, so that the edges are smoother, the stress can be dispersed when the wheels roll over, the range of stress is increased, the firmness of the edges of the contraction joint 20 is greatly improved, and the road surface can maintain good quality for a longer time.
[0019] As shown in Figures 1-2 , the rollers 2 on the front side of the mounting table 1 are coaxially corresponding; the rollers 2 on the rear side of the mounting table 1 are coaxially corresponding; the wheel seats 3 on the front side of the mounting table 1 are connected with one telescopic cylinder 4, and the wheel seats 3 on the rear side of the mounting table 1 are connected with another telescopic cylinder 4.
[0020] The above setting ensures that when the height of the mounting table 1 is adjusted, the mounting table 1 will only be tilted in the front-rear direction, and will not be tilted to the side, so that the cutting disc 6 is perpendicular to the road surface, the contraction joint 20 is also perpendicular to the road surface, and the cutting process meets the requirements.
[0021] As shown in Figure 1 , Figure 3 , the transmission member includes a driving pulley 10 fixed coaxially with the cutting disc 6, a driven pulley 11 fixed coaxially with the edge polishing disc 8, and a transmission belt 12 connected between the driving pulley 10 and the driven pulley 11. The cutting motor 7 drives the cutting disc 6 to rotate, so that the driving pulley 10 can be driven to rotate, and the edge polishing disc 8 fixed coaxially with the driven pulley 11 can be driven to rotate through the connection of the transmission belt 12, so that the edge polishing disc 8 and the cutting disc 6 are linked.
[0022] As shown in Figure 3 , the axial section of the polishing groove 9 is a concave arc structure. The polishing groove 9 can polish the edges on both sides of the contraction joint 20 into a convex arc structure, as shown in Figure 4 , the edges of the contraction joint 20 with this structure have high smoothness and no obvious corners, and the impact resistance is greatly increased, so that the edges are not easy to be damaged when the wheels roll over.
[0023] As shown in Figure 1 , a water tank 13 and a water pump 14 are fixed on the mounting table 1; the water pump 14 is communicated with the water tank 13 through a water suction pipe 15; the water pump 14 is connected with a spray head 17 for spraying water to the surfaces of the cutting disc 6 and the edge polishing disc 8 through a water discharge pipe 16. When the cutting operation is performed, the spray head 17 continuously sprays water to continuously flush and cool the cutting disc 6 and the edge polishing disc 8, so that the cutting and polishing can be continuously and stably performed.
[0024] As shown in Figure 1 The spray head 17 is fixed on the upper side inside the cover 5; the spray head 17 sprays water downward to the surface of the cutting disc 6 and the surface of the edging disc 8. The spray head 17 is arranged inside the cover 5 to spray water downward, which can also clean the inside of the cover 5, avoiding too much dust accumulation in the cover 5 to affect the use of the device.
[0025] As shown in Figure 3 The connecting frame 18 is fixed on the lower side of the mounting table 1; the reference wheel 19 is rotatably connected on the connecting frame 18; the reference wheel 19 is coaxially corresponding to the edging disc 8; the diameter of the reference wheel 19 is greater than the diameter of the inner ring of the edging groove 9 and less than the diameter of the outer ring of the edging groove 9. When the reference wheel 19 touches the ground, it is the appropriate height required by the edging disc 8. The reference wheel 19 is arranged to assist in determining the setting height of the edging disc 8, which can improve the convenience of adjusting the edging disc 8. On the one hand, it avoids the problem that the edging disc 8 cannot be effectively polished due to insufficient extension into the contraction joint 20; on the other hand, it avoids the problem that the contraction joint 20 is excessively widened due to excessive polishing of the edge of the contraction joint 20 by the edging groove 9 when the edging disc 8 extends too deeply into the contraction joint 20.
[0026] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, these features and embodiments can be modified to adapt to specific conditions and materials under the guidance of the present application without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of the present application.
Claims
1. A road surface cutting device for highway construction, comprising a mounting platform (1) and a plurality of rollers (2); the rollers (2) are respectively located on the front and rear sides below the mounting platform (1), characterized in that: Roller (2) is provided with wheel seat (3) on its outside; roller (2) is rotatably connected to the corresponding wheel seat (3); mounting platform (1) is connected to wheel seat (3) through telescopic cylinder (4); telescopic cylinder (4) is used to adjust the height distance between roller (2) and mounting platform (1); a cover (5) is fixed on the lower side of mounting platform (1); a cutting blade disc (6) is rotatably connected inside the cover (5); the cover (5) covers the upper part of the cutting blade disc (6); the cutting blade disc (6) is driven by a cutting motor (7) connected to the cover (5); a shrinking edge grinding assembly is also provided inside the cover (5); The joint grinding assembly includes a grinding blade (8) rotatably connected inside a housing (5); the housing (5) covers the upper part of the grinding blade (8); the grinding blade (8) is located behind the cutting blade (6) and is linked to the cutting blade (6) through a transmission component; the grinding blade (8) and the cutting blade (6) are on the same vertical plane, and their axes are parallel to the axis of the roller (2); the edges at both ends of the grinding blade (8) are respectively provided with grinding grooves (9) in the circumferential direction; the rotation of the grinding blade (8) is used to grind the edges on both sides of the road joint by the grinding grooves (9).
2. The road surface cutting device for highway construction according to claim 1, characterized in that: The rollers (2) on the front side of the mounting platform (1) are coaxially aligned; the rollers (2) on the rear side of the mounting platform (1) are coaxially aligned; the wheel seats (3) on the front side of the mounting platform (1) are all connected to a telescopic cylinder (4), and the wheel seats (3) on the rear side of the mounting platform (1) are all connected to another telescopic cylinder (4).
3. The road surface cutting device for highway construction according to claim 1, characterized in that: The transmission component includes a drive pulley (10) coaxially fixed with the cutting blade disc (6) and a driven pulley (11) coaxially fixed with the grinding blade disc (8); the drive pulley (10) and the driven pulley (11) are connected by a transmission belt (12).
4. A road surface cutting device for highway construction according to claim 2, characterized in that: The axial section of the grinding groove (9) is a concave arc structure.
5. A road surface cutting device for highway construction according to claim 1, characterized in that: A water tank (13) and a water pump (14) are fixed on the mounting platform (1); the water pump (14) is connected to the water tank (13) through a water suction pipe (15); the water pump (14) is connected to a nozzle (17) for spraying water onto the surface of the cutting blade (6) and the edge grinding blade (8) through a drain pipe (16).
6. A road surface cutting device for highway construction according to claim 5, characterized in that: The nozzle (17) is fixed inside the upper side of the cover (5); the nozzle (17) sprays water downwards toward the surface of the cutting blade (6) and the edge grinding blade (8).
7. A road surface cutting device for highway construction according to claim 4, characterized in that: A connecting frame (18) is fixed on the lower side of the mounting platform (1); a reference wheel (19) is rotatably connected to the connecting frame (18); the reference wheel (19) is coaxial with the grinding cutter disc (8); the diameter of the reference wheel (19) is larger than the diameter of the inner ring of the grinding groove (9) and smaller than the diameter of the outer ring of the grinding groove (9).