Rotary excavating cone coring barrel drill

Abstract

The utility model discloses a rotary excavating cone coring barrel drill which comprises a barrel body, a plurality of core cutting cones, a plurality of clamping and embedding mechanisms and a core removing mechanism, and the bottom of the barrel body is provided with an opening; each core cutting cone is fixed at the opening of the cylinder body along the circumferential direction so as to cut off a rock core; all the clamping and embedding mechanisms are arranged in the cylinder body in the circumferential direction so as to clamp a rock core; the depoling mechanism is arranged right above each clamping and embedding mechanism and comprises a depoling plate and a driving part, and the depoling plate is arranged in the cylinder body in a sliding manner. The cylindrical drill has the advantages that in the construction process of drilling and coring, a rock core can be clamped through the clamping and embedding mechanisms, the rock core is prevented from falling off in the process of being lifted out, after the rock core is taken out, downward acting force can be applied to the rock core through downward movement of the core-removing plate, the rock core falls off from the interior of the cylindrical drill, and the rock core is prevented from falling off from the interior of the cylindrical drill. Therefore, the drilling and coring efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pile hole mechanical equipment, in particular to a rotary cone core drill. Background Art

[0002] A rotary drilling rig is a construction machine suitable for drilling operations in building foundation projects. The roller coring barrel drill used in the rotary drilling rig is a relatively special drill bit. Its main advantage is that it has a fast penetration rate and is suitable for hard rock or relatively hard rock foundation treatment. In the existing rotary roller coring barrel drill (such as a rotary roller coring barrel drill disclosed in application number 202022688156.7), during the construction process of coring, after the barrel drill drills in and cuts, a core is formed in the unbroken area of ​​the barrel. The core is columnar. Under the influence of the annular cutting of the barrel drill, the cracks inside the core are further expanded, which will eventually lead to the fracture of the core. After the core breaks, the core can be stuck by the filling effect of the folding plate and the drill slag, and the core can be taken out as a whole. If the core is too loosely embedded, the core is easy to fall off during the process of being taken out, but if the core is too tight, when the core is taken out, it is not easy to be detached, which reduces the efficiency of coring. Utility Model Content

[0003] The purpose of the utility model is to overcome the above technical deficiencies and propose a rotary cone coring drill to solve the technical problems in the prior art of how to ensure that the core does not fall off during the process of being taken out and how to quickly detach the core after the core is taken out.

[0004] In order to achieve the above technical purpose, the technical solution of the utility model provides a rotary cone coring drill, comprising:

[0005] A cylinder body, the bottom of which is open;

[0006] A plurality of core cutting teeth are fixed at the opening of the cylinder along the circumferential direction to cut the core;

[0007] A plurality of clamping mechanisms are arranged in the cylinder along the circumferential direction to clamp the rock core;

[0008] The core stripping mechanism is arranged directly above each of the embedded mechanisms, and includes a core stripping plate and a driving member. The core stripping plate is slidably arranged in the cylinder body, one end of the driving member is fixedly connected to the core stripping plate, and the other end thereof slides out of the cylinder body, which can push the driving member to move the core stripping plate downward.

[0009] Furthermore, the top of the cylinder is sealed.

[0010] Furthermore, the rotary cone coring barrel drill also includes a connecting mechanism, one end of which is fixedly connected to the top of the barrel, and the other end of which is used to be detachably fixedly connected to the bottom of the drill rod of the drilling rig.

[0011] Furthermore, the connecting mechanism includes a connecting seat, a fixing ring and a plurality of wing plates, the connecting seat having a square hole extending in a vertical direction, a plurality of pin holes which penetrate the square hole are provided on the side wall of the connecting seat from top to bottom, the fixing ring is fixedly sleeved on the top of the connecting seat, and each of the wing plates is circumferentially arranged on the side of the connecting seat, and each of the wing plates is fixedly connected to the connecting seat and the top of the cylinder.

[0012] Furthermore, each of the core cutting teeth is arranged at an angle, and the directions of adjacent core cutting teeth are opposite, and they are respectively facing the core or facing away from the core.

[0013] Furthermore, the embedding mechanism includes an embedding plate and at least one embedding gear, the embedding plate is fixed on the inner side wall of the cylinder, and each of the embedding gears is fixed on the embedding plate.

[0014] Furthermore, the insert plate is a wedge-shaped structure, the surface of the insert plate facing the top of the cylinder is a horizontal surface, the surface of the insert plate facing the bottom of the cylinder is an inclined surface, and each of the insert gears is fixed at intervals on the inclined surface of the insert plate.

[0015] Furthermore, the driving member includes a plurality of guide rods and a driving ring, each of the guide rods is vertically arranged on the side of the connecting seat along the circumferential direction, the lower end of each guide rod slides through the top of the cylinder and extends into the cylinder, the bottom of each guide rod is fixedly connected to the core stripping plate, the upper end of each guide rod slides through the fixing ring, the driving ring is coaxially arranged directly above the fixing ring, and the driving ring is fixedly connected to the top of each guide rod.

[0016] Furthermore, the rotary cone core drill also includes a wear-resistant strip, which is a spiral structure and is fixedly arranged on the outer side wall of the barrel.

[0017] Furthermore, a plurality of drainage holes are provided on the side wall of the cylinder.

[0018] Compared with the prior art, the utility model has the following beneficial effects: during the construction process of coring, after the barrel is drilled and cut, a columnar core is formed in the barrel, and the core will push the core stripping plate to move upward to the highest point of the barrel, and each core cutting gear will perform annular cutting on the core as the barrel rotates. As the cracks inside the core expand, the core is cut off, and each clamping mechanism will be embedded in the core as the barrel rotates, thereby clamping the core. After the core is broken, the core can be taken out as a whole. After the core is taken out, the barrel is driven by the drill rod to The core is reciprocated downward to make the core fall off. If the core cannot fall off, the driving part can be pushed to make the core stripping plate move downward. During the downward movement of the core stripping plate, a downward force is applied to the core to make the core fall off from the barrel. During the construction process of coring with the barrel drill, the core can be clamped by various clamping mechanisms to prevent the core from falling off during the process of being taken out. After the core is taken out, the downward movement of the core stripping plate can exert a downward force on the core to make the core fall off from the barrel, thereby improving the efficiency of coring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a rotary cone core drill provided by the utility model;

[0020] Figure 2 yes Figure 1 A cross-sectional view of a rotary cone coring drill;

[0021] Figure 3 yes Figure 2 The enlarged view of A in FIG.

[0022] In the figure: 100 - cylinder, 110 - drainage hole, 200 - core cutting gear, 300 - embedding mechanism, 310 - embedding plate, 320 - embedding gear, 400 - core stripping mechanism, 410 - core stripping plate, 420 - driving member, 421 - guide rod, 422 - driving ring, 500 - connecting mechanism, 510 - connecting seat, 511 - square hole, 512 - pin hole, 520 - fixing ring, 530 - wing plate, 600 - wear-resistant strip. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The utility model provides a rotary cone core drill, the structure of which is as follows: Figure 1 - Figure 3As shown, it includes a barrel 100, a plurality of core cutting teeth 200, a plurality of engaging mechanisms 300 and a core stripping mechanism 400, the bottom of the barrel 100 is opened; each of the core cutting teeth 200 is circumferentially fixed at the opening of the barrel 100 to cut the core; each of the engaging mechanisms 300 is circumferentially arranged in the barrel 100 to clamp the core; the core stripping mechanism 400 is arranged directly above each of the engaging mechanisms 300, and includes a core stripping plate 410 and a driving member 420, the core stripping plate 410 is slidably arranged in the barrel 100, one end of the driving member 420 is fixedly connected to the core stripping plate 410, and the other end thereof slides out of the barrel 100 to push the driving member 420 to move the core stripping plate 410 downward.

[0025] During the construction process of coring, the top of the cylinder 100 is detachably fixedly connected to the bottom of the drill rod of the drilling rig. After the cylinder 100 is drilled and cut, a core is formed in the unbroken area of ​​the cylinder 100. The core is columnar, and the core will push the core removal plate 410 to move upward to the highest point of the cylinder 100. The cylinder 100 rotates under the drive of the drill rod, so that each of the core cutting teeth 200 and each of the clamping mechanisms 300 rotate synchronously. During the rotation process, each of the core cutting teeth 200 performs circumferential cutting on the core. As the cutting time increases, the internal cracks of the core are further expanded, and the core is finally cut off. During the rotation process, each of the clamping mechanisms 300 will be embedded in the core, thereby clamping the core. After the core breaks, the core can be taken out as a whole. After the core is taken out, the barrel 100 reciprocates under the drive of the drill rod to make the core fall off. If the core cannot fall off, the driving member 420 can be pushed to make the core stripping plate 410 move downward. During the downward movement of the core stripping plate 410, a downward force is applied to the core to make the core fall off from the barrel 100. During the construction process of coring with the barrel drill, the core can be clamped by each of the clamping mechanisms 300 to prevent the core from falling off during the process of being taken out. After the core is taken out, the downward movement of the core stripping plate 410 can apply a downward force to the core to make the core fall off from the barrel 100, thereby improving the efficiency of coring.

[0026] As a preferred embodiment, please refer to Figure 2 The top of the cylinder 100 is sealed to prevent the core stripping plate 410 from moving from the top of the cylinder 100 to the outside of the cylinder 100 .

[0027] As a preferred embodiment, please refer to Figure 1 and Figure 2The rotary core drill also includes a connecting mechanism 500, one end of which is fixedly connected to the top of the barrel 100, and the other end of the connecting mechanism 500 is used for detachable fixed connection with the bottom of the drill rod of the drilling rig, and the barrel 100 can be connected to the drill rod of the drilling rig via the connecting mechanism 500.

[0028] As a preferred embodiment, please refer to Figure 2 The connection mechanism 500 includes a connection seat 510, a fixing ring 520 and a plurality of wing plates 530. The connection seat 510 has a square hole 511 extending in the vertical direction. A plurality of pin holes 512 are spaced apart from top to bottom on the side wall of the connection seat 510 and all penetrate the square hole 511. The fixing ring 520 is fixed to the top of the connection seat 510. Each of the wing plates 530 is circumferentially arranged on the side of the connection seat 510. Each of the wing plates 530 is connected to the connection seat 510 and the The top of the cylinder 100 is fixedly connected, and the connection strength between the connecting seat 510 and the cylinder 100 can be improved by each of the wing plates 530. The lower end of the drill rod is passed through the square opening and extended into the square hole 511, and the pin shaft is passed through the pin hole 512 and the hole on the drill rod, so that the connecting seat 510 and the drill rod can be fixedly connected. Since the heights of the holes on drill rods of different types are different, the multiple pin holes 512 arranged at intervals from top to bottom can facilitate the selection of the appropriate pin hole 512, thereby improving adaptability.

[0029] As a preferred embodiment, please refer to Figure 2 Each of the core cutting teeth 200 is tilted, and the adjacent core cutting teeth 200 are in opposite directions, facing the core or facing away from the core, respectively, so as to facilitate multi-layered cutting of rock and soil, facilitate drilling, and improve drilling effect and drilling efficiency. At the same time, each of the core cutting teeth 200 facing the core guides the cut granular rock and soil, facilitates the concentration of slag toward the inside of the cylinder 100, and facilitates the scooping of slag and broken rock.

[0030] As a preferred embodiment, please refer to Figure 2 and Figure 3 The embedding mechanism 300 includes an embedding plate 310 and at least one embedding gear 320. The embedding plate 310 is fixed on the inner wall of the cylinder 100, and each of the embedding gears 320 is fixed on the embedding plate 310. The core can be embedded through the embedding plate 310 and each of the embedding gears 320 to improve the clamping effect and prevent the core from falling off during the removal process.

[0031] As a preferred embodiment, please refer to Figure 3The embedded plate 310 is a wedge-shaped structure, the surface of the embedded plate 310 facing the top of the cylinder 100 is a horizontal surface, and the surface of the embedded plate 310 facing the bottom of the cylinder 100 is an inclined surface. Each of the embedded gears 320 is fixed at intervals on the inclined surface of the embedded plate 310, thereby increasing the contact area between the embedded mechanism 300 and the core in the vertical direction and improving the clamping effect.

[0032] As a preferred embodiment, please refer to Figure 2 The card embedded plate 310 is close to the opening of the cylinder 100. If the length of the cylinder 100 is 1.5m, the card embedded plate 310 is at 1.3m. If the length of the cylinder 100 is 1.8m, the card embedded plate 310 is at 1.5m. The pile foundation coring can be carried out at the maximum depth, which effectively speeds up the drilling efficiency.

[0033] As a preferred embodiment, please refer to Figure 2 The driving member 420 includes a plurality of guide rods 421 and a driving ring 422. Each of the guide rods 421 is vertically arranged on the side of the connecting seat 510 along the circumferential direction. The lower end of each of the guide rods 421 slides through the top of the cylinder 100 and extends into the cylinder 100. The bottom of each of the guide rods 421 is fixedly connected to the core stripping plate 410. The upper end of each of the guide rods 421 slides through the fixing ring 520. The driving ring 422 is coaxially arranged on the fixing ring 520. Directly above the drill bit 421, the driving ring 422 is fixedly connected to the top of each guide rod 421. When the core is taken out, the barrel 100 reciprocates under the drive of the drill rod to make the core fall off. If the core cannot fall off, the driving ring 422 can be pushed to make the driving ring 422 drive each of the wire rods to move downward, thereby making the core stripping plate 410 move downward. During the downward movement of the core stripping plate 410, it will exert a downward force on the core, so that the core falls off from the barrel 100.

[0034] As a preferred embodiment, please refer to Figure 1 and Figure 2 The rotary core drill also includes a wear-resistant strip 600. The wear-resistant strip 600 is a spiral structure and is fixedly arranged on the outer wall of the cylinder 100. The wear-resistant strip 600 can provide 360-degree protection for the cylinder 100.

[0035] As a preferred embodiment, please refer to Figure 2The wear-resistant strip 600 extends from the bottom of the cylinder 100 to the top of the cylinder 100. During the screwing process, the wear-resistant strip 600 can roll up the silt and other sediments around the cylinder 100 to the upper part of the cylinder 100, avoiding the formation of a closed area between the bottom of the cylinder 100 and the bottom of the borehole, which makes it difficult to remove the cylinder 100 from the borehole.

[0036] As a preferred embodiment, please refer to Figure 1 and Figure 2 A plurality of drainage holes 110 are provided on the side wall of the cylinder 100 . During the process of taking out the core, the accumulated water in the cylinder 100 can be discharged through each of the drainage holes 110 .

[0037] In order to better understand the present invention, the following Figure 1 - Figure 3 The working principle of the technical solution of the utility model is described in detail:

[0038] During the construction process of coring, the lower end of the drill rod is passed through the drive ring 422 and extended into the square hole 511, and the pin is passed through the pin hole 512 and the hole on the drill rod, so that the connecting seat 510 can be fixedly connected to the drill rod. After the cylinder 100 is drilled and cut, a core is formed in the unbroken area of ​​the cylinder 100, and the core is columnar. The core will push the core removal plate 410 to move upward to the highest point of the cylinder 100. The cylinder 100 is driven by the drill rod to rotate, so that each of the core cutting teeth 200 and each of the clamping mechanisms 300 rotate synchronously. During the rotation process, each of the core cutting teeth 200 performs circumferential cutting on the core. As the cutting time increases, the internal cracks of the core are further expanded, and the core is finally cut off. During the rotation process, each of the clamping mechanisms 300, each of the clamping plates 310 and each of the clamping teeth 320 The core 422 is driven by the drill rod to reciprocate, so that the core falls off. If the core cannot fall off, the driving ring 422 can be pushed, so that the driving ring 422 drives each of the wire rods to move downward, thereby causing the core stripping plate 410 to move downward. During the downward movement of the core stripping plate 410, a downward force is applied to the core, causing the core to fall off from the cylinder 100. During the construction process of coring with the present cylinder drill, the core can be clamped by each of the embedding mechanisms 300 to prevent the core from falling off during the process of being taken out. After the core is taken out, the downward movement of the core stripping plate 410 can apply a downward force to the core, causing the core to fall off from the cylinder 100, thereby improving the efficiency of coring.

[0039] The utility model provides a rotary cone core drill with the following beneficial effects:

[0040] (1) When the clamping mechanism 300 rotates with the barrel 100, the clamping plate 310 and each clamping gear 320 will be embedded in the core, which can improve the clamping effect and prevent the core from falling off during the removal process;

[0041] (2) The card insert 310 is close to the opening of the cylinder 100. If the length of the cylinder 100 is 1.5 m, the card insert 310 is at 1.3 m. If the length of the cylinder 100 is 1.8 m, the card insert 310 is at 1.5 m. The pile foundation coring can be performed at the maximum depth, effectively accelerating the drilling efficiency.

[0042] (3) When using the present barrel drill for coring, the core can be clamped by the respective clamping mechanisms 300 to prevent the core from falling out during the process of being taken out. After the core is taken out, the core stripping plate 410 can be moved downward to apply a downward force to the core, causing the core to fall out of the barrel 100, thereby improving the efficiency of coring.

[0043] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A rotary cone coring drill, characterized in that: include: A cylinder body, the bottom of which is open; A plurality of core cutting teeth are fixed at the opening of the cylinder along the circumferential direction to cut the core; A plurality of clamping mechanisms are arranged in the cylinder along the circumferential direction to clamp the rock core; The core stripping mechanism is arranged directly above each of the embedded mechanisms, and includes a core stripping plate and a driving member. The core stripping plate is slidably arranged in the cylinder body, one end of the driving member is fixedly connected to the core stripping plate, and the other end thereof slides out of the cylinder body, which can push the driving member to move the core stripping plate downward.

2. The rotary cone coring drill according to claim 1, characterized in that: The top of the cylinder is provided with a sealing portion.

3. The rotary cone coring drill according to claim 2, characterized in that: It also includes a connecting mechanism, one end of which is fixedly connected to the top of the cylinder, and the other end of which is detachably fixedly connected to the bottom of a drill rod of a drilling rig.

4. The rotary cone coring drill according to claim 3, characterized in that: The connecting mechanism includes a connecting seat, a fixing ring and a plurality of wing plates. The connecting seat has a square hole extending in the vertical direction. The side wall of the connecting seat is provided with a plurality of pin holes which penetrate the square hole from top to bottom. The fixing ring is fixedly sleeved on the top of the connecting seat. Each of the wing plates is circumferentially arranged on the side of the connecting seat. Each of the wing plates is fixedly connected to the connecting seat and the top of the cylinder.

5. The rotary cone coring drill according to claim 1, characterized in that: Each of the core cutting teeth is arranged obliquely, and the directions of adjacent core cutting teeth are opposite, and they are respectively facing the core or facing away from the core.

6. The rotary cone coring drill according to claim 1, characterized in that: The clamping mechanism comprises a clamping plate and at least one clamping gear. The clamping plate is fixed on the inner side wall of the cylinder, and each of the clamping gears is fixed on the clamping plate.

7. The rotary cone coring drill according to claim 6, characterized in that: The insert plate is a wedge-shaped structure, the surface of the insert plate facing the top of the cylinder is a horizontal surface, the surface of the insert plate facing the bottom of the cylinder is an inclined surface, and each of the insert gears is fixed at intervals on the inclined surface of the insert plate.

8. The rotary cone coring drill according to claim 4, characterized in that: The driving member includes a plurality of guide rods and a driving ring, each of the guide rods is vertically arranged on the side of the connecting seat along the circumferential direction, the lower end of each guide rod slides through the top of the cylinder and extends into the cylinder, the bottom of each guide rod is fixedly connected to the core stripping plate, the upper end of each guide rod slides through the fixing ring, the driving ring is coaxially arranged directly above the fixing ring, and the driving ring is fixedly connected to the top of each guide rod.

9. The rotary cone coring drill according to claim 1, characterized in that: It also includes a wear-resistant strip, which is a spiral structure and is fixedly arranged on the outer side wall of the cylinder.

10. The rotary cone coring drill according to claim 1, characterized in that: A plurality of drainage holes are provided on the side wall of the cylinder.

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