Pavement construction quality detection device for road supervision

Abstract

The invention relates to the technical field of road construction quality detection, in particular to a road surface construction quality detection device for road supervision, which comprises a drilling machine, a main shaft, a chuck and a drill bit, the chuck is detachably and fixedly mounted at the bottom of the main shaft, the bottom of the chuck is provided with a quadrangular-prism-shaped connecting plug extending downwards, the drill bit is of a cylindrical structure, and the drill bit is fixedly connected with the main shaft. A bayonet socket is arranged at the top of the drill bit, a quadrangular-prism-shaped slot is formed in the bayonet socket, the cross section of the bayonet socket is of a square structure, the cross section of the slot is of a rectangular structure, the long edge of the cross section of the slot is longer than the edge of the cross section of the bayonet socket, and the short edge of the cross section of the slot is equal to the edge of the cross section of the bayonet socket. The upper portion and the lower portion of the connecting plug are each provided with a through threaded hole. The invention provides an efficient, accurate and low-damage road surface sampling scheme.

Description

Technical Field

[0001] The invention relates to the technical field of highway construction quality detection, in particular to a road surface construction quality detection device for highway supervision. Background Art

[0002] In highway construction, the quality of concrete pavement construction directly impacts the road's load-bearing capacity, durability, and driving safety. Highways used by trucks and heavy vehicles, in particular, place higher demands on the compressive strength, density, and uniformity of the hardened concrete layer. To ensure construction quality meets standards, highway supervisors typically use coring machines to drill cylindrical cores after the concrete or asphalt has hardened for testing purposes such as compressive strength, thickness, and internal structure.

[0003] At present, the coring devices widely used in highway quality inspections usually need to drill through the entire hardened layer (from the surface to the bottom layer of the road surface) to completely remove the sample core. However, this full-thickness coring method affects the normal traffic on the highway. Full-depth coring will leave through holes in the road surface, which need to be repaired in time to avoid vehicles running over and causing potholes to expand, affecting traffic flow and safety. High-grade materials must be used for core pit filling and strict compaction, otherwise weak points are likely to form, and long-term use may cause local collapse or cracks. In addition, some inspection items (such as surface strength and layered density) only need to analyze the concrete performance within a specific thickness range, and do not require a whole layer of core samples.

[0004] Therefore, there is an urgent need for a new type of road construction quality detection device for highway supervision to provide an effective solution to the defects of the existing technology. Summary of the Invention

[0005] The purpose of the present invention is to provide a road surface construction quality detection device for highway supervision to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The tool is fixed on the bottom of the main shaft, and the bottom of the tool is provided with a quadrangular prism-shaped plug connector extending downwardly. The drill bit is a cylindrical structure, and a socket is provided on the top of the drill bit. A quadrangular prism-shaped slot is provided in the socket. The cross section of the plug connector is a square structure, and the cross section of the slot is a rectangular structure. The long side of the cross section of the slot is longer than the side length of the cross section of the plug connector, and the short side of the cross section of the slot is equal to the side length of the cross section of the plug connector. The plug connector is plugged into the slot, and a threaded hole is respectively provided at the upper and lower ends of the plug connector. A pair of threaded rods are rotatably connected to the two ends of the length direction of the slot in the socket, and the two pairs of threaded rods are respectively threadedly connected to a pair of threaded holes from both sides; cutting blades are evenly distributed on the lower end of the drill bit, and the width of the cutting blade is greater than the thickness of the drill bit barrel wall. The inner and outer ends of the cutting blade extend horizontally out of the inner and outer sides of the drill bit barrel wall respectively.

[0008] Furthermore, cutting blade mounting seats are evenly distributed on the lower port of the drill bit, and the cutting blade mounting seats are welded to the lower port of the drill bit. The cutting blade mounting seats are the same width as the cutting blade.

[0009] Furthermore, a gear groove is provided on each side of the outer wall of the circumference of the socket, and a pair of bearings are used in the gear groove on each side to realize the rotatable installation of a pair of threaded rods on the same side. A driving gear is also rotatably installed in the gear groove on each side, and the outer end of the driving gear is provided with an inner hexagonal wrench groove. A driven gear is fixedly installed on the outer end of each threaded rod, and the driven gears of the pair of threaded rods on the same side are meshed with the driving gear, and the driving gear is located between the pair of driven gears.

[0010] Furthermore, vertical center scale lines are provided at the center positions of the two side surfaces of the plug connector where no threaded holes are provided, and eccentric indicating scale lines are provided on the two side long sides of the slot port.

[0011] The driving mechanism that the present invention relates to a driving mechanism that the cam is mounted on a supporting rim of the electric motor, and the driving mechanism that the cam is mounted on a supporting rim is mounted on a supporting rim of the electric motor.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention uses an eccentric adjustment mechanism and an extra-wide cutting blade to complete sampling without penetrating the road surface, forming only a shallow core pit, significantly reducing structural damage to the road surface, reducing repair costs and reducing the impact on traffic. The reinforced welding structure and gear / locking system of the cutting blade mounting seat ensure stability during eccentric cutting, and the scale line / design allows the operator to intuitively control the sampling depth and eccentricity. The device of the present invention is equipped with a multi-directional adjustment system, including a lifting screw, a horizontal screw and a rotating ring gear mechanism. The three-dimensional positioning of the drill bit is achieved by motor drive, and can adapt to the needs of efficient layered detection of road surfaces of different thicknesses. Compared with the traditional full-depth coring method, the present invention provides an efficient, accurate and low-damage road surface sampling solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front structure of a road surface construction quality detection device for highway supervision;

[0015] Figure 2 This is a schematic diagram of the rear structure of a road surface construction quality detection device for highway supervision;

[0016] Figure 3 Schematic diagram of the structure of the spindle, chuck and drill bit;

[0017] Figure 4 This is a schematic diagram of the structure of the spindle, chuck and drill bit;

[0018] Figure 5 It is a structural diagram of the socket;

[0019] Figure 6 It is a structural diagram of the threaded rod, the driven gear and the driving gear;

[0020] Figure 7 Schematic diagram of the drill bit structure;

[0021] Figure 8 This is a schematic diagram of the drill bit's structure breakdown;

[0022] Figure 9 This is a structural diagram of the cutting disc mounting seat.

[0023] In the figure: 1. Spindle; 2. Chuck; 3. Connector; 4. Drill bit; 5. Threaded hole; 6. Connector; 7. Slot; 8. Vertical center scale line; 9. Eccentricity indicator scale line; 10. Threaded rod; 11. Driven gear; 12. Driving gear; 13. Hexagonal wrench slot; 14. Gear slot; 15. Cutting disc; 16. Cutting disc mounting seat; 17. Spindle box; 18. Horizontal axis; 19. Horizontal lead screw; 20. Translation drive motor; 21. Lifting seat; 22. Lead screw sleeve; 23. Vertical lead screw; 24. Lifting drive motor; 25. Top seat; 26. Vertical axis; 27. Base; 28. Machine base; 29. ​​Rotation drive motor; 30. Gear; 31. Ring gear. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figures 3 to 9 A road surface construction quality inspection device for highway supervision includes a drilling rig and a spindle 1, a chuck 2 and a drill bit 4: the chuck 2 is detachably fixedly mounted on the bottom of the spindle 1, the bottom of the chuck 2 is provided with a quadrangular prism-shaped plug connector 3 extending downward, the drill bit 4 is a cylindrical structure, the top of the drill bit 4 is provided with a socket 6, and the socket 6 is provided with a quadrangular prism-shaped slot 7, the cross section of the plug connector 3 is a square structure, the cross section of the slot 7 is a rectangular structure, the long side of the cross section of the slot 7 is longer than the side length of the cross section of the plug connector 3, and the slot 7 is provided with a rectangular structure. The short side of the cross section is equal to the side length of the cross section of the plug connector 3. The plug connector 3 is plugged into the slot 7. The plug connector 3 is provided with a threaded hole 5 passing through the upper and lower ends. A pair of threaded rods 10 are rotatably connected to each end of the slot 7 in the length direction of the socket 6. The two pairs of threaded rods 10 are respectively threadedly connected to the pair of threaded holes 5 from both sides; cutting blades 15 are evenly distributed on the lower port of the drill bit 4. The width of the cutting blade 15 is greater than the thickness of the wall of the drill bit 4. The inner and outer ends of the cutting blade 15 extend horizontally from the inner and outer sides of the wall of the drill bit 4.

[0026] Cutting disc mounting seats 16 are evenly distributed on the lower end of the drill bit 4 . The cutting disc mounting seats 16 are welded to the lower end of the drill bit 4 . The cutting disc mounting seats 16 are the same width as the cutting disc 15 .

[0027] A gear groove 14 is provided on each side of the outer wall of the socket 6. A pair of bearings are used in the gear groove 14 on each side to realize the rotational installation of a pair of threaded rods 10 on the same side. A driving gear 12 is also rotatably installed in the gear groove 14 on each side. The outer end of the driving gear 12 is provided with an inner hexagonal wrench slot 13. A driven gear 11 is fixedly mounted on the outer end of each threaded rod 10. The driven gears 11 of the pair of threaded rods 10 on the same side are meshed with the driving gear 12, and the driving gear 12 is located between the pair of driven gears 11.

[0028] A vertical center scale line 8 is provided at the center position of the two side surfaces of the plug connector 3 where no threaded hole 5 is provided, and an eccentricity indicating scale line 9 is provided on the two long sides of the port of the slot 7 .

[0029] Working principle of this embodiment:

[0030] When installing this embodiment, Figure 4 、 5 , plug the drill bit 4 into the socket 7 of the socket 6 and the plug connector 3 of the chuck 2, and the square cross section of the plug connector 3 and the rectangular cross section of the socket 7 form an eccentric space. Figure 6 、 7 By observing the alignment of the vertical center scale line 8 of the plug connector 3 and the eccentricity indicator scale line 9 of the slot 7, the eccentricity can be accurately controlled.

[0031] like Figure 6 , use an Allen wrench to insert the Allen wrench slot 13 of the driving gear 12, drive the driving gear 12 to drive the driven gears 11 on both sides to rotate synchronously, so that the two pairs of threaded rods 10 are screwed into the threaded holes 5 of the plug connector 3, to achieve rigid locking of the drill bit 4 and the chuck 2, and the eccentricity can be adjusted.

[0032] like Figure 8 When the drill rig drives the spindle 1 to rotate, the cutting blade 15 at the lower end of the drill bit 4, because its width is greater than the wall thickness, simultaneously cuts the road surface with its inner and outer edges, forming an annular groove slightly wider than the wall of the drill bit 4. When rotating eccentrically, the cutting blade 15 forms a transverse incision at the bottom of the core sample, breaking the connection between the bottom of the core sample and the road surface. After stopping drilling, the core sample can be pulled up by levering the tool to break it from the transverse incision and remove the specific thickness of the core.

[0033] like Figure 9 The cutting disc mounting seat 16 is welded to the drill bit 4 port to increase the support strength of the cutting disc 15 and ensure stability during eccentric cutting.

[0034] This embodiment uses the eccentric cutting blade 15 and the transverse incision design in conjunction with the adjustable mechanism 10-13 to allow flexible control of the sampling depth according to the detection requirements, avoid invalid sampling and cause the bottom of the sample core to break, reduce the difficulty of repair and material costs, shorten the maintenance time, and reduce the impact on traffic flow.

[0035] Example 2: Please refer to Figures 1-2 , a road surface construction quality detection device for highway supervision, which differs from Example 1 in that the drilling rig includes a machine base 28, a vertical shaft 26, a horizontal shaft 18 and a spindle box 17, and a top seat 25 and a base 27 are respectively provided at the upper and lower ends of the vertical shaft 26. A lifting seat 21 is slidably installed on the vertical shaft 26, and a screw sleeve 22 is installed on the lifting seat 21. A vertical screw 23 is rotatably installed between the top seat 25 and the base 27, and the vertical screw 23 is transmission-connected to the screw sleeve 22. A lifting drive motor 24 is fixedly installed on the top seat 25, and the lifting drive motor 24 is drivingly connected to the vertical screw 23; the horizontal shaft 18 is horizontally arranged and fixedly installed on the lifting seat 21, and the spindle box 17 is slidably installed on the horizontal shaft 18, and a horizontal screw 19 is rotatably installed on the horizontal shaft 18. The horizontal screw 19 is driven and connected to the translation drive motor 20 fixedly installed at the end of the horizontal shaft 18. The horizontal screw 19 is transmission-connected to the screw sleeve installed on the spindle box 17. The spindle 1 is rotatably installed in the spindle box 17, and the spindle 1 is driven and rotated by the cutting motor installed in the spindle box 17; the base 27 is rotatably installed on the machine base 28, and a gear ring 31 is provided on the circumferential outer wall of the machine base 28. A rotary drive motor 29 is installed on the base 27, and a gear 30 is fixedly installed on the spindle of the rotary drive motor 29, and the gear 30 is meshed with the gear ring 31.

[0036] Working principle of this embodiment:

[0037] In this embodiment, the drilling rig can be fixedly mounted on an inspection vehicle. When the lift drive motor 24 is activated, it rotates the vertical lead screw 23. The lead screw sleeve 22 engages with the vertical lead screw 23, driving the lift base 21 to slide up and down along the vertical axis 26. By controlling the forward and reverse rotation of the lift drive motor 24, the feed depth of the spindle box 17 and the drill bit 4 can be precisely adjusted to accommodate sampling requirements for road surfaces of varying thicknesses. The translation drive motor 20 rotates the horizontal lead screw 19. The lead screw sleeve at the bottom of the spindle box 17 engages with the horizontal lead screw 19, causing the spindle box 17 to move horizontally along the transverse axis 18, fine-tuning the lateral position of the drill bit 4 to facilitate multi-point sampling in the same area or avoid obstacles. When the rotation drive motor 29 is activated, it rotates the gear 30. The gear 30 engages with the ring gear 31 fixed to the base 28, driving the base 27 and the entire superstructure, including the vertical axis 26 and transverse axis 18, to rotate about the base 28. This function allows the drill bit 4 to adjust its working angle within a 360° range.

[0038] During operation, the rotary drive motor 29 adjusts the drilling angle, while the translation drive motor 20 fine-tunes the lateral position of the drill bit 4. The lift drive motor 24 drives the drill bit 4 downward to a predetermined depth for non-penetrating coring, as in Example 1. After sampling is complete, the lift mechanism retracts, the core sample is removed, and the horizontal or rotation mechanism is adjusted to the next sampling point.

[0039] This embodiment replaces manual adjustment with motor drive, which reduces operation intensity and improves detection and sampling efficiency.

Claims

1. A road surface construction quality detection device for highway supervision, characterized in that: Includes drill and spindle (1), chuck (2) and drill bit (4): The chuck (2) is detachably fixedly mounted on the bottom of the spindle (1); a quadrangular prism-shaped plug connector (3) extending downward is provided at the bottom of the chuck (2); the drill bit (4) is a cylindrical structure; a socket (6) is provided on the top of the drill bit (4); a quadrangular prism-shaped slot (7) is provided in the socket (6); the cross section of the plug connector (3) is a square structure; the cross section of the slot (7) is a rectangular structure; the long side of the cross section of the slot (7) is longer than the side length of the cross section of the plug connector (3); the short side of the cross section of the slot (7) is equal to the side length of the cross section of the plug connector (3); the plug connector (3) and the slot (7) are plugged in and matched; a threaded hole (5) is provided on the upper and lower sides of the plug connector (3); a pair of threaded rods (10) are rotatably connected to the two ends of the slot (7) in the socket (6) in the length direction; the two pairs of threaded rods (10) are respectively threadedly connected to the pair of threaded holes (5) from both sides; Cutting blades (15) are evenly distributed on the lower end of the drill bit (4), the width of the cutting blades (15) is greater than the thickness of the drill bit (4) barrel wall, and the inner and outer ends of the cutting blades (15) extend horizontally from the inner and outer sides of the drill bit (4) barrel wall respectively.

2. A road surface construction quality detection device for highway supervision according to claim 1, characterized in that: Cutting disc mounting seats (16) are evenly distributed on the lower port of the drill bit (4), and the cutting disc mounting seats (16) are welded to the lower port of the drill bit (4). The cutting disc mounting seats (16) are the same width as the cutting disc (15).

3. A road surface construction quality detection device for highway supervision according to claim 1, characterized in that: A gear groove (14) is provided on each side of the outer circumferential wall of the socket (6), and a pair of bearings are used in the gear groove (14) on each side to realize the rotational installation of a pair of threaded rods (10) on the same side. A driving gear (12) is also rotatably installed in the gear groove (14) on each side, and an inner hexagonal wrench groove (13) is provided at the outer end of the driving gear (12). A driven gear (11) is fixedly installed at the outer end of each threaded rod (10), and the driven gears (11) of the pair of threaded rods (10) on the same side are meshed and installed with the driving gear (12), and the driving gear (12) is located between the pair of driven gears (11).

4. A road surface construction quality detection device for highway supervision according to claim 1, characterized in that: A vertical center scale line (8) is provided at the center position of the two side surfaces of the plug connector (3) where no threaded hole (5) is provided, and an eccentric indicating scale line (9) is provided on both long sides of the port of the slot (7).

5. The road surface construction quality detection device for highway supervision according to claim 1, characterized in that: The drilling rig comprises a machine base (28), a vertical shaft (26), a horizontal shaft (18) and a spindle box (17), wherein a top seat (25) and a base (27) are respectively provided at the upper and lower ends of the vertical shaft (26), a lifting seat (21) is slidably mounted on the vertical shaft (26), a screw sleeve (22) is mounted on the lifting seat (21), a vertical screw (23) is rotatably mounted between the top seat (25) and the base (27), the vertical screw (23) is transmission-connected to the screw sleeve (22), a lifting drive motor (24) is fixedly mounted on the top seat (25), and the lifting drive motor (24) is drivingly connected to the vertical screw (23); The transverse shaft (18) is horizontally arranged and fixedly mounted on the lifting seat (21), the spindle box (17) is slidably mounted on the transverse shaft (18), a horizontal lead screw (19) is rotatably mounted on the transverse shaft (18), the horizontal lead screw (19) is drive-connected to a translation drive motor (20) fixedly mounted on the end of the transverse shaft (18), the horizontal lead screw (19) is drive-connected to a lead screw sleeve mounted on the spindle box (17), the spindle (1) is rotatably mounted in the spindle box (17), and the spindle (1) is driven to rotate by a cutting motor mounted in the spindle box (17); The base (27) is rotatably mounted on the machine base (28). A gear ring (31) is provided on the circumferential outer wall of the machine base (28). A rotary drive motor (29) is mounted on the base (27). A gear (30) is fixedly mounted on the main shaft of the rotary drive motor (29). The gear (30) is meshed with the gear ring (31).

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