Road detection coring device

Abstract

The invention relates to the technical field of road detection sampling, and discloses a road detection coring device which comprises a frame body, a drilling driving mechanism, a drilling barrel and a pressure supply driving mechanism are arranged on the frame body, the drilling driving mechanism drives the drilling barrel to rotate, the road detection coring device further comprises a position changing mechanism, a reaming drilling barrel, a coring barrel and a lifting frame, and the position changing mechanism comprises a first motor and a center table; when the lifting frame is lifted to the highest point, the first motor is in transmission connection with the center table, an outer ring table is arranged on the outer side of the bottom of the center table, three protection barrel ring tables are evenly arranged on the outer ring table, the drilling barrel, the reaming drilling barrel and the coring barrel are arranged in the protection barrel ring tables respectively, the drilling driving mechanism comprises a second motor and a driving shaft, and the second motor drives the driving shaft to rotate on the lifting frame. According to the drilling, reaming and coring integrated machine, the problems that an existing sample core is prone to being damaged, the operation efficiency is low and the like are solved, and the integrated continuous operation of drilling, reaming and coring is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway detection sampling, in particular to a highway detection coring device. BACKGROUND

[0002] Highway sampling is a key link for evaluating the strength of pavement structure, material performance and construction quality. The highway is usually composed of three main structures, namely surface layer, base layer and cushion layer, and the soil foundation is below the cushion layer. The surface layer is asphalt concrete or cement concrete, the base layer is gravel mixed with asphalt or cement, and the cushion layer is mixed with natural sand and gravel and slag. The underground core sample can be obtained by using a coring machine, which can effectively judge the integrity of the highway base layer and surface layer, and provide an important basis for maintenance decision and quality detection.

[0003] The existing highway detection coring machine is composed of a simple frame, a rotating mechanism, a lifting mechanism and a drill cylinder. The drill cylinder rotates downward into the highway, and when it reaches the appropriate depth, the drill cylinder is lifted. The sample core is in the drill cylinder or left in the drill hole. After coring, the sample core can be taken out only after the drill cylinder is manually disassembled. The operation is complicated and the sample core is easily broken due to knocking and other actions. If the sampling requirement reaches the soil foundation position, the sand and gravel at the base layer will be loose and fall off when the drill cylinder rises, which makes it difficult to ensure the integrity of the sample core. The sample core left in the drill hole needs to be taken out manually with tools, which is relatively laborious. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the above difficulties and provide a highway detection coring device.

[0005] To solve the above technical problems, the technical solution provided by the present application is as follows: a highway detection coring device, comprising a frame, a drilling driving mechanism, a drill cylinder and a pressure feeding driving mechanism are arranged on the frame. The drilling driving mechanism drives the drill cylinder to rotate, and the pressure feeding driving mechanism drives the drill cylinder to move up and down. Further comprising a displacement mechanism, an expansion drill cylinder, a coring cylinder and a lifting frame. The displacement mechanism comprises a motor one fixed on the lifting frame and a central table rotatably arranged on the lifting frame. When the lifting frame is lifted to the highest point, the motor one is in transmission connection with the central table. An outer ring table is arranged on the bottom outer side of the central table. Three cylinder protection ring tables are uniformly arranged on the outer ring table. The drill cylinder, the expansion drill cylinder and the coring cylinder are arranged in the cylinder protection ring tables respectively. The pressure feeding driving mechanism drives the lifting frame to move up and down in the frame. The drilling driving mechanism is arranged on the lifting frame. The drilling driving mechanism comprises a motor two and a driving shaft. The motor two drives the driving shaft to rotate on the lifting frame. A driving table is arranged at the bottom of the driving shaft. The driving table is in transmission connection with the drill cylinder, the expansion drill cylinder and the coring cylinder respectively.

[0006] As the improvement: the top of the drive table is provided with a spline shaft, the bottom of the drive shaft is provided with a spline groove matched with the spline shaft, a spring is arranged between the drive table and the bottom of the drive shaft, the top of the drill cylinder is provided with a top plate one, the top plate one is provided with a transmission table one, the top of the reaming drill cylinder is provided with a top plate two, the top plate two is provided with a transmission table two, the core taking cylinder comprises a cylinder body, the top of the cylinder body is provided with a top plate three, the top of the top plate three is rotatably provided with a transmission table three, the bottom of the top plate one, the top plate two and the top plate three is in contact with the protection cylinder ring table, and the transmission table one, the transmission table two and the transmission table three are respectively in driving connection with the drive table.

[0007] As the improvement: the bottom of the drive table is provided with a cross slot, the outer side ring table of the cross slot is provided with an inclined groove, the inclined groove is provided with a clamping groove, the top of the transmission table one and the transmission table two is provided with an inclined table one matched with the inclined groove, the inclined table one is provided with a clamping table, the top of the transmission table one and the transmission table two is provided with a cross insertion table matched with the cross slot, and the top of the transmission table three is provided with an inclined table two matched with the inclined groove.

[0008] As the improvement: the bottom of the reaming drill cylinder is provided with a plurality of spiral digging teeth and a hollow groove, a plurality of spiral grooves are arranged on the outer wall of the reaming drill cylinder, the bottom of the spiral groove is communicated with the hollow groove, and the top plate two is provided with an earth outlet communicated with the spiral groove.

[0009] As the improvement: the core taking cylinder further comprises a transmission rod, the inner side of the cylinder body is provided with a hollow groove, the transmission rod is rotatably arranged in the hollow groove, the top of the transmission rod is provided with a gear one penetrating through the top plate three, the bottom of the transmission table three is provided with a gear two engaged with the gear one, the bottom of the transmission rod is provided with an arc-shaped plate, the inner side of the bottom of the hollow groove is provided with a ring groove, and the arc-shaped plate is inserted into the bottom of the sample core after penetrating through the ring groove.

[0010] As the improvement: the outer side of the cylinder body is provided with a limiting sliding groove, and the inner side of the protection cylinder ring table where the core taking cylinder is arranged is provided with a limiting table in sliding cooperation with the limiting sliding groove.

[0011] As the improvement: the top of the center table is provided with a center rod, the outer side of the top of the center rod is uniformly provided with a same number of positioning tables as the protection cylinder ring table, the inner side of the frame body is provided with a positioning frame, and the inner side of the positioning frame is provided with a positioning groove in sliding cooperation with the positioning table.

[0012] As the improvement: the pressure driving mechanism comprises a third motor and a second threaded column, the third motor drives the second threaded column to rotate on the frame body, the top of the lifting frame is provided with a wing plate on both sides, the wing plate is provided with a threaded hole matched with the second threaded column, the lifting frame is provided with a sliding block, and the frame body is provided with a sliding groove in sliding cooperation with the sliding block.

[0013] As the improvement: the output end of the first motor is provided with a bevel gear one, the outer side of the center table is provided with a bevel gear two engaged with the bevel gear one, the bottom of the center table is provided with an adjusting plate, the top of the adjusting plate is provided with a first threaded column, and the bottom of the center table is provided with a threaded hole matched with the first threaded column.

[0014] Compared with the prior art, the present application has the beneficial effects that: the present application solves the problems of complicated operation, inconvenient tool switching, easy damage of sample core, low operation efficiency and the like of the existing coring machine by integrating the innovative structures of the displacement mechanism, the reaming drill cylinder and the coring cylinder, realizes integrated continuous operation of drilling, reaming and coring, greatly improves the power transmission stability, sample core integrity and operation efficiency by optimizing the transmission adaptability, slag discharge structure and positioning accuracy, and is more convenient to operate, can adapt to different highway detection scenes, effectively meets the efficient and accurate coring demand, and specifically: 1. The displacement mechanism can realize quick and accurate switching of the drill cylinder, the reaming drill cylinder and the coring cylinder without the need of additional equipment assistance, significantly improves operation continuity and reduces process interval time; 2. The optimized transmission structure such as spline cooperation, spring pre-pressing, cross slot and inclined slot cooperation and the like ensures stable docking of different tools and driving mechanisms, deviation-free power transmission and reduces transmission failure probability; 3. The arc plate cutting structure and the limiting sliding groove design of the coring cylinder can firmly fix the sample core, avoid sample core falling off or breaking during coring and ensure sample core integrity; 4. The pressure-giving driving mechanism cooperates with the positioning table and the positioning groove to ensure stable operation of the lifting frame, accurate positioning, small tool docking error and improved operation accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present application.

[0016] Figure 2 is an explosion view of the main structure of the present application.

[0017] Figure 3 is a schematic diagram of the main structure of the present application.

[0018] Figure 4 is a structural schematic diagram of the frame body of the present application.

[0019] Figure 5 is a structural schematic diagram of the positioning frame of the present application.

[0020] Figure 6 is a structural schematic diagram of the displacement mechanism of the present application.

[0021] Figure 7 is a sectional view of the displacement mechanism of the present application.

[0022] Figure 8 is a structural schematic diagram of the drill cylinder of the present application.

[0023] Figure 9 is a structural schematic diagram of the reaming drill cylinder of the present application Figure 1 .

[0024] Figure 10is the structural diagram of the reamer barrel of the present application Figure 2 .

[0025] Figure 11 is the exploded view of the core barrel of the present application.

[0026] Figure 12 is the sectional view of the core barrel of the present application.

[0027] Figure 13 is the structural diagram of the drilling driving mechanism of the present application.

[0028] Figure 14 is the structural diagram of the driving table of the present application.

[0029] Figure 15 is the structural diagram of the pressure feeding driving mechanism of the present application.

[0030] Figure 16 is the structural diagram of the lifting frame of the present application.

[0031] As shown in the figure: 1, frame body; 2, displacement mechanism; 3, drill barrel; 4, reamer barrel; 5, core barrel; 6, drilling driving mechanism; 7, pressure feeding driving mechanism; 8, lifting frame; 11, sliding groove; 12, positioning frame; 13, connecting arm; 14, roller; 15, fixed block; 16, hand push rod; 17, positioning groove; 21, motor one; 211, bevel gear one; 22, center table; 221, bevel gear two; 23, outer ring table; 24, protection barrel ring table; 241, limiting table; 25, center rod; 26, positioning table; 27, adjusting plate; 28, threaded column one; 31, top plate one; 32, wall hole; 33, transmission table one; 331, inclined table one; 332, clamping table; 333, cross insertion table; 41, rotary digging tooth; 42, empty slot; 43, helical groove; 44, top plate two; 45, unearthed hole; 46, transmission table two; 51, barrel body; 511, top plate three; 512, hollow slot; 513, ring slot; 514, limiting sliding groove; 52, transmission rod; 521, gear one; 522, arc plate; 53, transmission table three; 531, inclined table two; 532, gear two; 61, motor two; 62, gear three; 63, driving shaft; 64, gear four; 65, driving table; 651, inclined slot; 652, clamping slot; 653, cross insertion slot; 66, spline shaft; 67, spring; 71, motor three; 711, pulley one; 72, gear five; 721, pulley two; 73, gear six; 74, threaded column two; 81, connecting table one; 82, connecting table two; 83, wing plate; 84, sliding block. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] The present application is described in detail below with reference to the accompanying drawings. Figure 1 , the accompanying drawings Figure 2, attached Figure 3 and attached Figure 8 As shown in the drawings, a highway detection coring device comprises a frame body 1, a drilling driving mechanism 6, a drill cylinder 3 and a pressure driving mechanism 7 are arranged on the frame body 1, the drilling driving mechanism 6 drives the drill cylinder 3 to rotate, the pressure driving mechanism 7 drives the drill cylinder 3 to move up and down, the drill cylinder 3 is provided with a plurality of wall holes 32 arranged uniformly, further comprising a displacement mechanism 2, a reaming drill cylinder 4, a coring cylinder 5 and a lifting frame 8, the displacement mechanism 2 comprises a motor one 21 fixed on the lifting frame 8 and a central table 22 rotatably arranged on the lifting frame 8, when the lifting frame 8 rises to the highest point, the motor one 21 is in transmission connection with the central table 22, an outer ring table 23 is arranged at the bottom of the outer side of the central table 22, three protector ring tables 24 are arranged uniformly on the outer ring table 23, the drill cylinder 3, the reaming drill cylinder 4 and the coring cylinder 5 are arranged in the protector ring tables 24 respectively, the pressure driving mechanism 7 drives the lifting frame 8 to move up and down in the frame body 1, the drilling driving mechanism 6 is arranged on the lifting frame 8, the drilling driving mechanism 6 comprises a motor two 61 and a driving shaft 63, the motor two 61 drives the driving shaft 63 to rotate on the lifting frame 8, a driving table 65 is arranged at the bottom of the driving shaft 63, and the driving table 65 is in transmission connection with the drill cylinder 3, the reaming drill cylinder 4 and the coring cylinder 5 respectively.

[0034] The device aims to solve the problem that in the traditional highway detection coring operation, the coring machine only uses the drill cylinder to drill and core, and the coring operation needs to disassemble the drill cylinder from the coring machine, then knock out or use tools to take out the sample core, which is inconvenient to operate and easy to cause the sample core to break. The device integrates multiple functional components and realizes precise cooperative operation, achieving continuous and efficient coring operation.

[0035] During operation, the frame body 1 is first fixed on the road surface to be detected, in the initial state, the lifting frame 8 is at the highest point, the pressure driving mechanism 7 drives the lifting frame 8 to descend, the drill cylinder 3, the reaming drill cylinder 4 and the coring cylinder 5 stop descending after falling to the ground, the displacement mechanism 2 still descends with the lifting frame 8 until the driving table 65 is power coupled with the drill cylinder 3, the motor two 61 in the drilling driving mechanism 6 drives the driving table 65 to rotate through the driving shaft 63, thereby driving the drill cylinder 3 to rotate, while the drill cylinder 3 is rotating, the lifting frame 8 applies downward pressure to the drill cylinder 3 through the driving shaft 63 under the action of the pressure driving mechanism 7, completing the preliminary drilling operation, when the drilling reaches the preset depth, the pressure driving mechanism 7 drives the lifting frame 8 to rise until the lifting frame 8 rises to the highest point, in this process, the protector ring table 24 drives the drill cylinder 3, the reaming drill cylinder 4 and the coring cylinder 5 to rise and reset, whether the sample core is in the drill cylinder 3 is observed, if yes, the drill cylinder 3 is pulled out of the protector ring table 24, the plurality of wall holes 32 on the drill cylinder 3 facilitates the sample core to be taken out of the drill cylinder 3, avoiding that the negative pressure in the drill cylinder 3 prevents the sample core from being taken out.

[0036] If the sample core is still in the road hole and is not convenient to take out, the sample core needs to be taken out using the reamer barrel 4 and the coring barrel 5. The lifting frame 8 is raised to the highest point, the drive table 65 is decoupled from the power of the drill barrel 3, the motor one 21 is started and drives the central table 22 to rotate, the outer ring table 23 and the barrel ring table 24 at the bottom of the central table 22 rotate with it, the reamer barrel 4 is switched to below the drive table 65, the lifting frame 8 is lowered under the action of the pressure driving mechanism 7, the drive table 65 is coupled with the power of the reamer barrel 4, the reamer barrel 4 starts to rotate and descend, and the reaming process is carried out on the drilled hole to provide space for the coring barrel 5. After the reaming is completed, the lifting frame 8 is raised to the highest point again, the motor one 21 drives the central table 22 to rotate again, the coring barrel 5 is switched to below the drive table 65, the coring barrel 5 falls into the drilled hole, the drive table 65 provides power for the internal components of the coring barrel 5, the bottom part of the coring barrel 5 is inserted into the bottom of the sample core, the lifting frame 8 is raised, the coring barrel 5 moves upward with it, and the sample core can be lifted with the coring barrel 5, completing the whole coring process.

[0037] In this process, the displacement mechanism 2 realizes the accurate switching of the drill barrel 3, the reamer barrel 4 and the coring barrel 5 through the cooperation of the motor one 21 and the central table 22, the pressure driving mechanism 7 provides pressure for the downward operation of each tool and controls the lifting of the lifting frame 8, and the drilling driving mechanism 6 provides power for the rotation of each tool. The three work together to ensure that the drilling, reaming and coring processes are continuously and accurately completed.

[0038] In combination with the drawings Figure 3 , the drawings Figure 8 , the drawings Figure 9 , the drawings Figure 11 , the drawings Figure 13 , the drawings Figure 14 and the drawings Figure 16 , the motor two 61 is fixed on the connecting table two 82 on the lifting frame 8, the drive shaft 63 is rotatably arranged on the connecting table two 82, the motor two 61 is provided with a gear three 62 at the output end, the drive shaft 63 is provided with a gear four 64 at the top end, the gear four 64 is engaged with the gear three 62, the drive table 65 is provided with a spline shaft 66 at the top end, the drive shaft 63 is provided with a spline groove at the bottom end, the spline groove is matched with the spline shaft 66, the drive table 65 and the bottom end of the drive shaft 63 are provided with a spring 67, the drill barrel 3 is provided with a top plate one 31 at the top end, the top plate one 31 is provided with a transmission table one 33, the reamer barrel 4 is provided with a top plate two 44 at the top end, the top plate two 44 is provided with a transmission table two 46, the coring barrel 5 includes a barrel body 51, the barrel body 51 is provided with a top plate three 511 at the top end, the top plate three 511 is rotatably provided with a transmission table three 53 at the top end, the top plate one 31, the top plate two 44 and the top plate three 511 are in contact with the barrel ring table 24 at the bottom end, and the transmission table one 33, the transmission table two 46 and the transmission table three 53 are respectively in transmission connection with the drive table 65.

[0039] In combination with the drawings Figure 8 , the drawings Figure 9 , the drawings Figure 11 and the drawingsFigure 14 As shown, the driving platform 65 is provided with a cross slot 653 at the bottom, and a bevel groove 651 is provided on the outer ring platform of the cross slot 653. A clamping slot 652 is provided on the bevel groove 651. The top sides of the transmission platform 1 33 and the transmission platform 2 46 are both provided with a bevel platform 1 331 that cooperates with the bevel groove 651. A clamping platform 332 is provided on the bevel platform 1 331. The tops of the transmission platforms 1 33 and 2 46 are provided with a cross inserting platform 333 that cooperates with the cross slot 653. The top side of the transmission platform 3 53 is provided with a bevel platform 2 531 that cooperates with the bevel groove 651.

[0040] On the basis of the original, this device further solves the problems of insufficient transmission adaptability between different tools and drive structures, easy deviation in docking accuracy and poor power transmission stability. By optimizing the transmission structure design, it ensures efficient and accurate coordination between the drill barrel 3, reaming drill barrel 4, coring barrel 5 and drilling drive mechanism 6.

[0041] During operation, when the driving platform 65 is docked with the drill tube 3, the reaming drill tube 4 or the coring tube 5, the motor 2 61 is fixed on the connecting platform 2 82 of the lifting frame 8, and the gear 3 62 is engaged with the gear 4 64 at the top of the driving shaft 63, driving the driving shaft 63 to rotate on the connecting platform 2 82. The spline groove at the bottom of the driving shaft 63 cooperates with the spline shaft 66 at the top of the driving platform 65. At the same time, the spring 67 between the driving platform 65 and the bottom of the driving shaft 63 provides elastic pressure to ensure that the driving platform 65 is in close contact with the tool below. For the drill tube 3 and the reaming drill tube 4, the inclined platform 1 33 on the top side thereof 1 is inserted into the inclined slot 651 of the driving platform 65 to achieve preliminary positioning, and then the cross inserting platform 333 at the top is inserted into the cross slot 653 at the bottom of the driving platform 65, and the clamping platform 332 on the inclined platform 331 is inserted into the clamping slot 652 of the inclined slot 651, forming a stable transmission connection. At this time, the rotation of the driving platform 65 can drive the drill tube 3 or the reaming drill tube 4 to rotate synchronously through the coordinated action of the cross inserting platform 333 and the cross slot 653, and the clamping platform 332 and the clamping slot 652. The cooperation between the clamping platform 332 and the clamping slot 652 prevents the inclined platform 331 and the inclined slot 651 from sliding.

[0042] When the transmission platform 3 53 at the top of the core barrel 5 is docked, the inclined platform 2 531 on its side is inserted or slid into the inclined groove 651 of the driving platform 65, and close contact is achieved under the elastic pressure of the spring 67. Since there is no clamping structure between the transmission platform 3 53 and the driving platform 65, power is transmitted only through the cooperation between the inclined platform 2 531 and the inclined groove 651. When the transmission platform 3 53 is blocked, the inclined platform 2 531 slides along the inclined groove 651 of the driving platform 65, the driving platform 65 rises, and the spring 67 is compressed. During this process, the driving platform 65 continues to rotate, and the spring 67 applies pressure to the driving platform 65, so that the inclined groove 651 hits the inclined platform 2 531, thereby overcoming the resistance of the internal structure of the core barrel 5 through the impact force.

[0043] This structural design enables the drive platform 65 to quickly and accurately dock with different tools after the tool switching is completed by the displacement mechanism 2. Through the spline fit, the pressure of the spring 67, and the multiple positioning of the cross insert 333 and the cross slot 653, the inclined platform and the inclined groove 651, the stability and accuracy of power transmission are guaranteed, further improving the efficiency and accuracy of the entire coring operation.

[0044] Combined with attachment Figure 9 and attached Figure 10 As shown, the reaming drill barrel 4 has the same inner diameter as the drill barrel 3, and the outer diameter of the reaming drill barrel 4 is larger than the outer diameter of the drill barrel 3. A plurality of screw-in digging teeth 41 and empty grooves 42 are provided at the bottom of the reaming drill barrel 4, and a plurality of spiral grooves 43 are provided on the outer wall of the reaming drill barrel 4. The bottom of the spiral groove 43 is connected to the empty groove 42, and an excavation hole 45 connected to the spiral groove 43 is provided on the top plate 44.

[0045] The newly added reaming drill barrel structure of this device is designed to solve the problems of increased resistance, reduced operating efficiency and affected reaming quality caused by untimely discharge of slag during the reaming process. By optimizing the wall thickness and slag discharge structure of the reaming drill barrel 4, the smoothness and effectiveness of the reaming operation are improved.

[0046] During operation, after the shifting mechanism 2 switches the reaming drill tube 4 to the bottom of the driving platform 65, the reaming drill tube 4 has the same inner diameter as the drill tube 3, the outer diameter of the reaming drill tube 4 is larger than the outer diameter of the drill tube 3, and the wall thickness of the reaming drill tube 4 is larger than that of the drill tube 3, which can provide stronger structural support on the basis of reaming and ensure stability during the reaming process. When the reaming drill tube 4 rotates and descends under the drive of the drilling drive mechanism 6, the multiple rotating excavating teeth 41 at the bottom can quickly crush the road surface material outside the hole wall, and a part of the crushed debris enters the ground hole and rotates with the rotating excavating teeth 41. As the reaming drill tube 4 rotates, the debris enters the empty groove 42 at the bottom of the reaming drill tube 4, and the multiple spiral grooves 43 on the outer wall of the reaming drill tube 4 are connected to the empty groove 42. As the reaming drill tube 4 rotates, the spiral grooves 43 can transport the debris in the empty groove 42 and between the hole wall and the drill tube 3 upward like a screw conveyor, and finally discharge it through the unearthing hole 45 on the top plate 44 that is connected to the spiral groove 43, avoiding the accumulation of debris in the hole. While achieving precise hole reaming, the debris discharge is efficiently completed, further ensuring the continuity and operation quality of the entire coring operation.

[0047] Combined with attachment Figure 11 and attached Figure 12As shown, the outer side of the barrel 51 is provided with a limiting sliding groove 514, and the inner side of the core barrel ring table 24 where the core barrel 5 is located is provided with a limiting table 241 which is in sliding cooperation with the limiting sliding groove 514. The core barrel 5 further comprises a transmission rod 52, and the inner side of the barrel 51 is provided with a hollow groove 512. The transmission rod 52 is rotatably arranged in the hollow groove 512. The top of the transmission rod 52 is provided with a gear one 521 which passes through the top plate three 511. The bottom of the transmission table three 53 is provided with a gear two 532 which is in meshing cooperation with the gear one 521. The bottom of the transmission rod 52 is provided with an arc-shaped plate 522. The inner side of the bottom of the hollow groove 512 is provided with a ring groove 513. The arc-shaped plate 522 is inserted into the bottom of the sample core after passing through the ring groove 513.

[0048] The newly added core barrel 5 structure of the device aims to solve the problem of easy falling of the sample core and insufficient stability of the core taking during the core taking process. The fixing structure of the core barrel 5 is optimized to further improve the core taking quality.

[0049] During the core taking operation, when the displacement mechanism 2 switches the core barrel 5 to the lower side of the driving table 65, the core barrel 5 descends with the lifting frame 8. The limiting sliding groove 514 on the outer side of the barrel 51 is in sliding cooperation with the limiting table 241 on the inner side of the core barrel ring table 24, which ensures that the barrel 51 does not rotate during the downward process, thereby enhancing the stability of the core taking. The driving table 65 drives the transmission table three 53 to rotate. The gear two 532 at the bottom of the transmission table three 53 is in meshing cooperation with the gear one 521 at the top of the transmission rod 52, which makes the transmission rod 52 rotate in the hollow groove 512 on the inner side of the barrel 51. The arc-shaped plate 522 at the bottom of the transmission rod 52 is inserted into the bottom of the sample core after passing through the ring groove 513 on the inner side of the bottom of the hollow groove 512. The arc-shaped plate 522 will be subjected to resistance from the foundation soil layer during the rotation process. The impact force of the driving table 65 on the transmission table three 53 will make the arc-shaped plate 522 cut into the soil layer at the bottom of the sample core, thereby cutting off the connection between the sample core and the soil layer. When the core barrel 5 rises, the arc-shaped plate 522 will lift the sample core, so that it rises with the core barrel 5.

[0050] As shown in Figs. 1-4, Figure 4 , Figs. 5-8, Figure 5 , Figs. 9-12, Figure 6 and Figs. 13-16, Figure 16 As shown, the top of the center table 22 is provided with a center rod 25 which is rotatably connected with the connecting table one 81 on the lifting frame 8. The outer side of the top of the center rod 25 is uniformly provided with the same number of positioning tables 26 as the core barrel ring table 24. The inner side of the frame body 1 is provided with a positioning frame 12. The inner side of the positioning frame 12 is provided with a positioning groove 17 which is in sliding cooperation with the positioning table 26.

[0051] When the tool is switched, the center rod 25 at the top of the center platform 22 is rotatably connected to the connecting platform 81 on the lifting frame 8, and the positioning platform 26 on the outside of the top of the center rod 25 slides with the positioning groove 17 of the positioning frame 12 inside the frame body 1. When the center platform 22 drives the casing ring platform 24 to rotate and switch the tool, the positioning platform 26 rotates above the positioning frame 12. After the switching is completed, the positioning platform 26 is aligned with the positioning groove 17. When the center rod 25 descends with the lifting frame 8, the positioning platform 26 slides into the positioning groove 17, thereby realizing the precise positioning of the drill barrel 3, the reaming drill barrel 4 and the coring barrel 5, ensuring that the reaming drill barrel 4 and the coring barrel 5 fall accurately into the drill hole, and the positioning platform 26 cooperates with the positioning groove 17 to play a limiting role, preventing the displacement mechanism 2 from rotating when the lifting frame 8 descends and the drilling drive mechanism 6 works, further improving the consistency and accuracy of the operation. These structures work in conjunction with the original mechanism to make the entire coring operation process more stable and efficient.

[0052] Combined with attachment Figure 1 , Attachment Figure 4 , Attachment Figure 15 and attached Figure 16 As shown, the pressure driving mechanism 7 includes a motor three 71, a gear five 72 and a threaded column two 74. The motor three 71 is fixed on the frame body 1, and the gear five 72 and the threaded column two 74 rotate on the frame body 1. The output end of the motor three 71 is provided with a pulley one 711, and the gear five 72 is coaxially connected with the pulley two 721. The pulley one 711 and the pulley two 721 are connected through a belt transmission. The threaded column two 74 is provided with a gear six 73 that meshes with the gear five 72. Wing plates 83 are provided on both sides of the top of the lifting frame 8. The wing plates 83 are provided with threaded holes that cooperate with the threaded column two 74. The lifting frame 8 is provided with a slider 84, and the frame body 1 is provided with a slide groove 11 that slides with the slider 84.

[0053] The newly added structure of the pressure drive mechanism 7 of this device is mainly to solve the problem that when the lifting frame drives the drill barrel 3, the reaming drill barrel 4 and the coring barrel 5 to move up and down, the driving force transmission is unstable and the lifting process is prone to shaking, which in turn affects the operation accuracy and efficiency. By optimizing the transmission method and guide structure, it is ensured that the lifting frame can achieve smooth and accurate lifting and lowering movements.

[0054] When it is necessary to drive the lifting frame 8 to move up and down, the motor three 71 in the pressure driving mechanism 7 is started, the pulley one 711 at the output end of the motor three 71 drives the pulley two 721 coaxially connected with the gear five 72 to rotate through the belt, the gear five 72 rotates and engages with the gear six 73 on the threaded column two 74, thereby driving the threaded column two 74 to rotate on the frame body 1, the wing plates 83 on both sides of the top of the lifting frame 8 are matched with the threaded column two 74 through the threaded holes, the rotation of the threaded column two 74 is converted into the up and down movement of the wing plates 83, thereby driving the entire lifting frame 8 to move up and down, at the same time, the sliding block 84 on the lifting frame 8 is matched with the sliding groove 11 on the frame body 1 to provide guidance for the movement of the lifting frame 8 and prevent the lifting frame 8 from deviating or shaking during the movement, the structure design enables the pressure driving mechanism 7 to provide stable and sufficient driving force for the lifting frame 8, thereby ensuring that the drilling cylinder 3, the reaming cylinder 4 and the coring cylinder 5 can accurately control the downhole depth and speed during the drilling, reaming and coring operations, and also ensuring that the lifting frame 8 can smoothly rise to the highest point when the tools are switched, so that the displacement mechanism 2 can smoothly complete the tool switching.

[0055] Combining the drawings Figure 6 and the drawings Figure 7 As shown in the drawings, the output end of the motor one 21 is provided with the bevel gear one 211, the outer side of the center table 22 is provided with the bevel gear two 221 engaged with the bevel gear one 211, the bottom of the center table 22 is provided with the adjusting plate 27, the top of the adjusting plate 27 is provided with the threaded column one 28, and the bottom of the center table 22 is provided with the threaded hole matched with the threaded column one 28.

[0056] The transmission structure of the motor one 21 and the center table 22 and the related structure of the adjusting plate 27 in the device mainly solve the problem of insufficient transmission stability of the displacement mechanism 2 when driving the center table 22 to rotate, and improve the reliability and accuracy of tool switching by optimizing the transmission mode and adding the height adjustment structure.

[0057] During the tool switching process, when the lifting frame 8 rises to the highest point, the bevel gear one 211 at the output end of the motor one 21 engages with the bevel gear two 221 at the outer side of the center table 22 to form a stable transmission structure, after the motor one 21 is started, the center table 22, the outer ring table 23 at the bottom and the protector ring table 24 are driven to stably rotate through the engagement transmission of the bevel gear one 211 and the bevel gear two 221, thereby realizing the position switching of the drilling cylinder 3, the reaming cylinder 4 and the coring cylinder 5, the adjusting plate 27 at the bottom of the center table 22 can be adjusted in height through the cooperation of the threaded column one 28 at the top and the threaded hole at the bottom of the center table 22, thereby controlling the drilling depth of the drilling cylinder 3 and keeping the lowering depth of the reaming cylinder 4 and the coring cylinder 5 consistent with the drilling depth of the drilling cylinder 3, which ensures the continuous and efficient performance of the entire coring operation.

[0058] Combining the drawings Figure 1 and the drawings Figure 4As shown, the bottom side of the frame body 1 is hingedly provided with a connecting arm 13, the connecting arm 13 is rotatably provided with a roller 14, the bottom of the frame body 1 is provided with a fixed block 15 in contact with the connecting arm 13, and the rear side of the frame body 1 is provided with a hand pushing rod 16.

[0059] In use, the device is moved by pushing the hand pushing rod 16 and cooperating with the roller 14, after reaching the sampling position, the device is tilted twice, the connecting arm 13 is rotated, the roller 14 is moved above the bottom of the frame body 1, so that the frame body 1 directly falls to the ground, preventing the device from moving.

[0060] The above describes the present application and its embodiments, which is not restrictive, the drawings only show one of the embodiments of the present application, the actual structure is not limited thereto, in general, if the ordinary skilled in the art is inspired, without departing from the purpose of the present application, without creating a similar structure and examples of the technical solution, which should belong to the protection scope of the present application.

Claims

1. A highway detection coring device, comprising a frame body (1), a drilling driving mechanism (6), a drill cylinder (3) and a pressure driving mechanism (7) are arranged on the frame body (1), the drilling driving mechanism (6) drives the drill cylinder (3) to rotate, and the pressure driving mechanism (7) drives the drill cylinder (3) to move up and down, characterized in that: further comprising a displacement mechanism (2), a reaming drill cylinder (4), a coring cylinder (5) and a lifting frame (8), the displacement mechanism (2) comprises a motor one (21) fixed on the lifting frame (8) and a central table (22) rotatably arranged on the lifting frame (8), when the lifting frame (8) rises to the highest point, the motor one (21) is in transmission connection with the central table (22), an outer ring table (23) is arranged at the bottom of the outer side of the central table (22), three cylinder protection ring tables (24) are uniformly arranged on the outer ring table (23), the drill cylinder (3), the reaming drill cylinder (4) and the coring cylinder (5) are arranged in the cylinder protection ring tables (24) respectively, the pressure driving mechanism (7) drives the lifting frame (8) to move up and down in the frame body (1), the drilling driving mechanism (6) is arranged on the lifting frame (8), the drilling driving mechanism (6) comprises a motor two (61) and a driving shaft (63), the motor two (61) drives the driving shaft (63) to rotate on the lifting frame (8), a driving table (65) is arranged at the bottom of the driving shaft (63), and the driving table (65) is in transmission connection with the drill cylinder (3), the reaming drill cylinder (4) and the coring cylinder (5) respectively. The top of the driving table (65) is provided with a spline shaft (66), the bottom of the driving shaft (63) is provided with a spline groove matched with the spline shaft (66), a spring (67) is arranged between the driving table (65) and the bottom of the driving shaft (63), the top of the drill cylinder (3) is provided with a top plate one (31), the top plate one (31) is provided with a transmission table one (33), the top of the reaming drill cylinder (4) is provided with a top plate two (44), the top plate two (44) is provided with a transmission table two (46), the coring cylinder (5) comprises a cylinder body (51), the top of the cylinder body (51) is provided with a top plate three (511), the top of the top plate three (511) is rotatably provided with a transmission table three (53), the bottoms of the top plate one (31), the top plate two (44) and the top plate three (511) are in contact with the cylinder protection ring table (24), and the transmission table one (33), the transmission table two (46) and the transmission table three (53) are in transmission connection with the driving table (65) respectively.

2. A highway detection coring device according to claim 1, wherein: The bottom of the driving table (65) is provided with a cross-shaped insertion slot (653), an inclined slot (651) is arranged on the outer side ring table of the cross-shaped insertion slot (653), a clamping slot (652) is arranged on the inclined slot (651), the top edges of the transmission table one (33) and the transmission table two (46) are each provided with an inclined table one (331) matched with the inclined slot (651), the inclined table one (331) is provided with a clamping table (332), the top of the transmission table one (33) and the transmission table two (46) is provided with a cross-shaped insertion table (333) matched with the cross-shaped insertion slot (653), and the top edge of the transmission table three (53) is provided with an inclined table two (531) matched with the inclined slot (651).

3. A highway detection coring device according to claim 2, wherein: ​ 4. A highway detection coring device according to claim 2, wherein: The bottom of the reamer barrel (4) is provided with a plurality of screwing digging teeth (41) and a hollow groove (42), the outer wall of the reamer barrel (4) is provided with a plurality of spiral grooves (43), the bottom of the spiral groove (43) is communicated with the hollow groove (42), and the top plate two (44) is provided with an earth outlet hole (45) communicated with the spiral groove (43).

5. A highway detection coring device according to claim 2, wherein: The core taking barrel (5) further comprises a transmission rod (52), the inner side of the barrel body (51) is provided with a hollow groove (512), the transmission rod (52) is rotatably arranged in the hollow groove (512), the top of the transmission rod (52) is provided with a gear one (521) penetrating through the top plate three (511), the bottom of the transmission platform three (53) is provided with a gear two (532) meshing with the gear one (521), the bottom of the transmission rod (52) is provided with an arc-shaped plate (522), the inner side of the bottom of the hollow groove (512) is provided with a ring groove (513), and the arc-shaped plate (522) is inserted into the bottom of the sample core after penetrating through the ring groove (513).

6. A highway detection coring device according to claim 2 or 5, wherein: The outer side of the barrel body (51) is provided with a limiting sliding groove (514), and the inner side of the barrel ring platform (24) where the core taking barrel (5) is located is provided with a limiting platform (241) in sliding cooperation with the limiting sliding groove (514).

7. A highway detection coring device according to claim 1, wherein: The top of the center platform (22) is provided with a center rod (25), the outer side of the top of the center rod (25) is uniformly provided with a same number of positioning platforms (26) as the barrel ring platform (24), the inner side of the frame body (1) is provided with a positioning frame (12), and the inner side of the positioning frame (12) is provided with a positioning groove (17) in sliding cooperation with the positioning platform (26).

8. A highway detection coring device according to claim 1, wherein: The pressure giving driving mechanism (7) comprises a motor three (71) and a threaded column two (74), the motor three (71) drives the threaded column two (74) to rotate on the frame body (1), the top of the lifting frame (8) is provided with a wing plate (83) on both sides, the wing plate (83) is provided with a threaded hole matched with the threaded column two (74), the lifting frame (8) is provided with a sliding block (84), and the frame body (1) is provided with a sliding groove (11) in sliding cooperation with the sliding block (84).

9. A highway detection coring device according to claim 1, wherein: The output end of the motor one (21) is provided with a bevel gear one (211), the outer side of the center platform (22) is provided with a bevel gear two (221) meshing with the bevel gear one (211), the bottom of the center platform (22) is provided with an adjusting plate (27), the top of the adjusting plate (27) is provided with a threaded column one (28), and the bottom of the center platform (22) is provided with a threaded hole matched with the threaded column one (28).

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