Pavement coring machine with road structure thickness measuring device

Abstract

The utility model belongs to the technical field of road structure thickness detection, and particularly relates to a road surface coring machine with a road structure thickness measuring device, which comprises a platform, the lower end face of the platform is fixedly provided with a drill bit, the drill bit is internally provided with an accommodating cavity, and the platform can move along the vertical direction; the first push rod penetrates through the platform, one end of the first push rod is arranged in the containing cavity, and the first push rod moves in the vertical direction with the platform as the reference; the sliding groove is fixedly formed in the platform, the sliding groove is formed in the circumferential direction of the first push rod in parallel, and the opening direction of the sliding groove is opposite to the axis of the first push rod; the measuring pieces are embedded into the sliding grooves in a one-to-one correspondence mode, the measuring pieces are detachably connected to the top ends of the sliding grooves to form a fixed state and a separated state, and when the measuring pieces are in the separated state, the measuring pieces freely fall along the sliding grooves; the road surface coring machine with the road structure thickness measuring device has the effects of accurately positioning the direction, avoiding position errors and improving the measuring precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of road structure thickness detection, and particularly relates to a pavement coring machine with a road structure thickness measuring device. Background Art

[0002] Pavement coring refers to, after the pavement construction is completed, coring the pavement to understand the pavement quality condition. When coring the pavement, align the coring machine vertically with the pavement drilling position, lower the drill bit, turn on the cooling water, start the motor, slowly press down the drill rod to drill the core sample. After drilling through the full thickness, lift the drill rod, pull out the drill bit, stop rotating to prevent the core sample from being damaged, and take out the core sample. Then use a steel straightedge or vernier caliper to measure the surface thickness along the cross directions symmetrically around the circumference of the core sample, and take the average value. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that when measuring the thickness, it is necessary to first determine the cross directions and measure one by one, which is time-consuming and laborious, and the cross direction positioning is inaccurate when measuring the thickness, affecting the test accuracy.

[0004] Therefore, the utility model provides a pavement coring machine with a road structure thickness measuring device.

[0005] The technical solution adopted by the utility model to solve its technical problem is as follows:

[0006] A platform, a drill bit is fixedly arranged on the lower end surface of the platform, an accommodation cavity is arranged inside the drill bit, and the platform can move in the vertical direction;

[0007] A first push rod, the first push rod penetrates through the platform, one end of the first push rod is arranged in the accommodation cavity, and the first push rod moves in the vertical direction with the platform as a reference;

[0008] A sliding groove, the sliding groove is fixedly arranged on the platform, the sliding groove is arranged in parallel around the circumference of the first push rod, the opening direction of the sliding groove is opposite to the axis of the first push rod, and the sliding groove is provided with scales;

[0009] Measuring parts, the number of the measuring parts is equal to that of the sliding grooves, and the measuring parts are respectively and correspondingly embedded in the sliding grooves, the measuring parts are detachably connected to the top ends of the sliding grooves to form a fixed state and a separated state, and when the measuring parts are in the separated state, the measuring parts freely fall along the sliding grooves.

[0010] Further, it further includes a second push rod, the second push rod is connected to the platform, and the second push rod drives the platform to move in the vertical direction.

[0011] Further, it further includes a base, a column, and a second rotating part. The column is fixedly arranged on the base, the column penetrates through the platform, the second rotating part is fixedly connected to the top end of the second push rod, and the second rotating part drives the second push rod to rotate circumferentially.

[0012] Further, a main shaft is fixedly arranged on the upper end surface of the platform. The main shaft and the drill bit are coaxially arranged. The first push rod penetrates through the main shaft. The lower end of the sliding groove is fixedly connected to the main shaft. A cooling pipe is arranged on the main shaft, and the cooling pipe is adapted to cool the drill bit.

[0013] Further, a driving part is fixedly arranged on the platform, and the driving part is electrically connected to the drill bit.

[0014] Further, the measuring part includes a horizontal part, a vertical part, and an indicating part. The horizontal part, the vertical part, and the indicating part are all sheet-shaped. One side edge of the horizontal part is vertically connected to one side edge of the vertical part. The indicating part is arranged at the top end of the vertical part. An indicating needle and a fixing hole are arranged on the indicating part. The fixing hole is adapted to detachably arrange the measuring part at the top end of the sliding groove, and the indicating needle and the top end of the sliding groove are at the same height.

[0015] Further, a first rotating part is fixedly arranged at the top end of the first push rod, and the first rotating part drives the first push rod to rotate circumferentially.

[0016] Further, the inner walls at the notch of the sliding groove extend towards each other to form a baffle, and the baffle limits the free fall of the measuring part.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. By guiding the free fall of the measuring part through the sliding groove in the vertical direction, the direction to be measured is accurately positioned, avoiding the position error caused by manual positioning and improving the measurement accuracy.

[0019] 2. A plurality of measuring parts can perform free fall simultaneously or successively, and multiple data can be measured in one measurement, saving the detection time.

[0020] 3. Through the liftable setting of the second push rod, the whole process of standing measurement and reading is realized, reducing the fatigue of bending down during manual measurement and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0022] Figure 1 It is a schematic structural diagram of the optimal embodiment of a pavement coring machine with a road structure thickness measuring device of the present utility model;

[0023] Figure 2 It is an enlarged schematic view of part A of the optimal embodiment of a core drill for road surface with a device for measuring the thickness of road structure according to the present utility model;

[0024] Figure 3 It is an enlarged schematic view of the chute of the optimal embodiment of a core drill for road surface with a device for measuring the thickness of road structure according to the present utility model.

[0025] In the figure: 1, platform; 2, drill bit; 3, accommodation cavity; 4, first push rod; 5, chute; 6, measuring member; 7, second push rod; 8, base; 9, column; 10, second rotating part; 11, main shaft; 12, cooling pipe; 13, driving member; 14, horizontal part; 15, vertical part; 16, indicating part; 17, indicating needle; 18, first rotating part; 19, baffle; 20, handrail; 21, traveling wheel. Detailed implementation mode

[0026] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic views, only illustrating the basic structure of the present utility model in a schematic way, so they only show the components related to the present utility model.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" 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, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Embodiment:

[0030] As shown Figures 1 to 3 in the figure, an optimal embodiment of a pavement coring machine equipped with a road structure thickness measuring device includes: a platform 1, a drill bit 2 is fixedly arranged on the lower end surface of the platform 1, an accommodation cavity 3 is arranged inside the drill bit 2, and the platform 1 can move in the vertical direction; a first push rod 4, the first push rod 4 penetrates through the platform 1, one end of the first push rod 4 is arranged in the accommodation cavity 3, and the first push rod 4 moves in the vertical direction with the platform 1 as a reference; a sliding groove 5, the sliding groove 5 is fixedly arranged on the platform 1, and the sliding groove 5 is arranged in parallel around the circumference of the first push rod 4. In this embodiment, the number of sliding grooves 5 is four, and the opening directions of the sliding grooves 5 are opposite to the axis of the first push rod 4. The sliding groove 5 has scales. In this embodiment, the length of the drill bit 2 is equal to the total range of the scales on the sliding groove 5, both being 40 cm; measuring members 6, the number of measuring members 6 is equal to that of the sliding grooves 5, both being four, and they are respectively and correspondingly embedded in the sliding grooves 5. The measuring members 6 are detachably connected to the top ends of the sliding grooves 5 to form a fixed state and a detached state. When the measuring members 6 are in the detached state, the measuring members 6 freely fall along the sliding grooves 5. During this process, the sliding grooves 5 play the following two roles for the free fall of the measuring members 6. One is that the sliding grooves 5 play a guiding role for the free fall of the measuring members 6 to accurately position the direction to be measured. The other is that the sliding grooves 5 have scales, and the scales are arranged along the direction of the free fall of the measuring members 6. When the measuring members 6 complete the free fall, the positions of the measuring members 6 are obtained through the scales on the sliding grooves 5.

[0031] That is to say, when the platform 1 is driven to fall until the drill bit 2 drills into the road surface for coring, that is, when the drill bit 2 drills into the road surface, a part of the road surface will break away from the road surface and enter the accommodation cavity 3 inside the drill bit 2. The part that enters the accommodation cavity 3, that is, the core sample, is a cylinder. Then, the drill bit 2 is driven to extract the cored road surface, and the bottom end of the drill bit 2 is abutted against another road surface. At this time, there is a distance between the bottom surface of the core sample in the accommodation cavity 3 and the road surface against which the drill bit 2 abuts. Then, the first push rod 4 is driven to move downward, and the core sample in the accommodation cavity 3 is pushed downward through the first push rod 4 until the bottom surface of the core sample abuts against the road surface against which the drill bit 2 abuts. At this time, the measuring member 6 should be located at the position where the scale on the sliding groove 5 is 40, and the measuring member 6 is also in a fixed state. Next, the thickness of the core sample can be measured.

[0032] The measurement of the core sample thickness is specifically to operate the measuring member 6 to make it in the detached state. Under the action of gravity, the four measuring members 6 are simultaneously or successively made to freely fall until the measuring members 6 fall on the upper end surface of the core sample, and the scales are recorded and averaged respectively through the positions of the four measuring members 6 on the sliding groove 5 to complete the measurement.

[0033] After the measurement is completed, lift the sliding piece to the uppermost end of the sliding groove 5, fix the measuring piece 6 by bolts, raise the drill bit 2, and drive the first push rod 4 to push the core sample in the accommodating cavity 3 out of the drill bit 2. Thus, the entire working process ends.

[0034] It further includes a second push rod 7. The second push rod 7 is connected to the platform 1. The second push rod 7 is used to drive the platform 1 to move in the vertical direction, and is suitable for driving the drill bit 2 to press down into the road surface to drill a core sample, and driving the drill bit 2 to lift upward after the measurement is completed, so as to facilitate pushing the core sample out of the drill bit 2.

[0035] It further includes a base 8, a column 9 and a second rotating part 10. The column 9 is fixedly arranged on the base 8. The column 9 penetrates through the platform 1. The second rotating part 10 is fixedly connected to the top end of the second push rod 7. The second rotating part 10 drives the second push rod 7 to rotate circumferentially, and the second push rod 7 drives the platform 1 to move in the vertical direction. An armrest 20 is also fixedly arranged on the base 8, and walking wheels 21 are fixedly arranged at the bottom of the base 8, which is convenient for the operator to push the entire device and move it to different road surfaces for detection.

[0036] The upper end surface of the platform 1 is fixedly provided with a main shaft 11. The main shaft 11 and the drill bit 2 are coaxially arranged. The first push rod 4 penetrates through the main shaft 11. The lower end of the sliding groove 5 is fixedly connected to the main shaft 11. A cooling pipe 12 is arranged on the main shaft 11. The cooling pipe 12 is suitable for cooling the drill bit 2. The setting of the main shaft 11 provides a reference for the setting of the first push rod 4, the sliding groove 5 and the cooling pipe 12. The first push rod 4 is provided with threads and moves in the vertical direction with the main shaft 11 as the reference.

[0037] A driving part 13 is fixedly arranged on the platform 1. The driving part 13 is electrically connected to the drill bit 2 and drives the drill bit 2 to rotate to facilitate drilling the core sample.

[0038] The measuring piece 6 includes a horizontal part 14, a vertical part 15 and an indicating part 16. The horizontal part 14, the vertical part 15 and the indicating part 16 are all sheet-shaped. One side edge of the horizontal part 14 is perpendicularly connected to one side edge of the vertical part 15. The indicating part 16 is arranged at the top end of the vertical part 15. An indicating needle 17 and a fixing hole are arranged on the indicating part 16. The fixing hole is suitable for detachably arranging the measuring piece 6 at the top end of the sliding groove 5. The indicating needle 17 and the top end of the sliding groove 5 are at the same height, that is, when the measuring piece 6 is in a fixed state, the indicating needle 17 and the highest point of the scale of the sliding groove 5 are flush.

[0039] The top end of the first push rod 4 is fixedly provided with a first rotating part 18. The first rotating part 18 drives the first push rod 4 to rotate circumferentially.

[0040] The inner walls at the notch of the sliding groove 5 extend towards each other to form a baffle 19. The baffle 19 limits the free fall of the measuring piece 6.

[0041] In summary, the operation process of this embodiment is as follows:

[0042] 1. After the entire device moves to the designated road surface, retract the walking wheels 21, vertically align the device with the drilling position on the road surface, lower the drill bit 2, and firmly place it to ensure that the device is stably placed on the ground. Open the cooling water to cool the drill bit 2 through the cooling pipe 12. Start the driving member 13, slowly press down the second push rod 7 to drill the core sample. After drilling through the full thickness, lift the drill bit 2 and pull out the drill bit 2, and the drill bit 2 stops rotating.

[0043] 2. Make the drill bit 2 contact the ground, control the first rotating part 18, move the first push rod 4 downward, and slowly push out the core sample until the bottom of the core sample contacts the ground. At this time, the indicating needles 17 should all point to 40 cm.

[0044] 3. Remove the four measuring members 6 from the fixing bolts respectively and let them fall freely. When the measuring members 6 stop falling, record the scales indicated by the four indicating needles 17 and take the average value.

[0045] 4. After the measurement, lift the measuring member 6 upward, fix it on the sliding groove 5 through bolts, lift the drill bit 2, and rotate the first rotating part 18 to drive the first push rod 4 to push the core sample out of the drill bit 2.

[0046] Inspired by the ideal embodiment of the present invention described above, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A road coring machine equipped with a road structure thickness measuring device, characterized in that: include: A platform (1), a drill bit (2) is fixedly arranged on the lower end surface of the platform (1), the drill bit (2) has a receiving cavity (3) inside, and the platform (1) is movable in a vertical direction; A first push rod (4), the first push rod (4) passes through the platform (1), one end of the first push rod (4) is arranged in the accommodating cavity (3), and the first push rod (4) moves in a vertical direction with the platform (1) as a reference; A slide groove (5), the slide groove (5) is fixedly arranged on the platform (1), the slide groove (5) is arranged in parallel with the circumference of the first push rod (4), the opening direction of the slide groove (5) is opposite to the axis of the first push rod (4), and the slide groove (5) has a scale; The measuring pieces (6) are equal in number to the slide grooves (5) and are embedded in the slide grooves (5) one by one. The measuring pieces (6) are detachably connected to the top of the slide grooves (5) to form a fixed state and a disengaged state. When the measuring pieces (6) are in the disengaged state, the measuring pieces (6) fall freely along the slide grooves (5).

2. A road surface coring machine with a road structure thickness measuring device as claimed in claim 1, characterized in that: It also comprises a second push rod (7), wherein the second push rod (7) is connected to the platform (1), and the second push rod (7) drives the platform (1) to move in a vertical direction.

3. A road surface coring machine with a road structure thickness measuring device as claimed in claim 2, characterized in that: It also includes a base (8), a column (9) and a second rotating part (10), wherein the column (9) is fixedly arranged on the base (8), the column (9) passes through the platform (1), and the second rotating part (10) is fixedly connected to the top end of the second push rod (7), and the second rotating part (10) drives the second push rod (7) to rotate circumferentially.

4. A road surface coring machine with a road structure thickness measuring device as claimed in claim 1, characterized in that: A main shaft (11) is fixedly arranged on the upper end surface of the platform (1); the main shaft (11) and the drill bit (2) are coaxially arranged; the first push rod (4) passes through the main shaft (11); the lower end of the slide groove (5) is fixedly connected to the main shaft (11); a cooling pipe (12) is arranged on the main shaft (11); and the cooling pipe (12) is suitable for cooling the drill bit (2).

5. A road surface coring machine with a road structure thickness measuring device as claimed in claim 1, characterized in that: A driving member (13) is fixedly arranged on the platform (1), and the driving member (13) is electrically connected to the drill bit (2).

6. A road surface coring machine with a road structure thickness measuring device as claimed in claim 1, characterized in that: The measuring member (6) comprises a horizontal portion (14), a vertical portion (15) and an indicating portion (16); the horizontal portion (14), the vertical portion (15) and the indicating portion (16) are all in the form of sheets; one side of the horizontal portion (14) and one side of the vertical portion (15) are vertically connected; the indicating portion (16) is arranged at the top end of the vertical portion (15); an indicating needle (17) and a fixing hole are arranged on the indicating portion (16); the fixing hole is suitable for detachably arranging the measuring member (6) at the top end of the slide groove (5); the indicating needle (17) and the top end of the slide groove (5) are located at the same height.

7. A road surface coring machine with a road structure thickness measuring device as claimed in claim 1, characterized in that: A first rotating portion (18) is fixedly provided at the top end of the first push rod (4), and the first rotating portion (18) drives the first push rod (4) to rotate in a circumferential direction.

8. A road surface coring machine with a road structure thickness measuring device as claimed in claim 1, characterized in that: The inner walls of the slots (5) extend towards each other to form baffles (19), and the baffles (19) limit the free fall of the measuring member (6).

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