A columnar sediment cutting sampling device for marine mining area geological survey

Abstract

The application discloses a kind of marine mining area geological survey columnar sediments cutting sampling device of sampling device technical field, including mounting frame, support leg, drive drill rig;When the present application is surveyed and sampled to the geology of marine mining area, utilize rotating column and cleaning tooth, rotating column and cleaning tooth can be rotated under the drive of silt and debris, the mud discharge effect of drill bit can be increased by rotating column rotation, avoid silt and debris will gather and adhere in the gap between multiple broken teeth, and cleaning tooth can stir and clean silt and debris that have adhered between multiple broken teeth, so that silt and debris adhered between broken teeth can be stripped and flow with water flow, avoid multiple broken teeth between there can be silt and debris adhered, and utilize flushing hole to flush the gap between broken teeth, cooperate with the stripping of silt and debris between broken teeth by cleaning tooth, can further remove the debris remaining between broken teeth.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sampling devices, in particular to a columnar sediment cutting sampling device for marine mining area geological survey. BACKGROUND

[0002] Marine sediments are an important part of seabed geological layers. Sampling and detecting marine sediments can realize detection and tracing of marine pollution, ecological risk assessment, scientific research, and development and utilization of marine resources.

[0003] In the prior art, when drilling and sampling marine mining area sediments, the drill bits and sludge generated during the drilling process will adhere between the crushing teeth of the drill bit, thereby increasing the friction between the drill bit and the sediments, causing the rotation resistance of the drill bit to increase, the drilling speed to decrease, and even the drill bit to be stuck, thereby reducing the drilling efficiency. In addition, the sludge and drill bits between the crushing teeth of the drill bit contain salt and sulfides, which can accelerate the corrosion of metal parts and shorten the service life of the drill bit. SUMMARY

[0004] The purpose of the present application is to provide a columnar sediment cutting sampling device for marine mining area geological survey to solve the problems raised in the background.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a columnar sediment cutting sampling device for marine mining area geological survey, comprising a mounting frame, a supporting leg, a driving drill, a drilling pipe mounted inside the driving drill, a sealing valve mounted inside the drilling pipe, and a drill bit mounted at the end of the drilling pipe. The drill bit is composed of a connecting pipe and a plurality of crushing teeth arranged at equal angles. A stepped protrusion is formed on the surface of the connecting pipe near the crushing teeth. A rotating shaft is arranged between two adjacent crushing teeth. A rotating column is rotatably connected to the surface of the rotating shaft. A plurality of conical cleaning teeth are fixedly connected to the surface of the rotating column. The cleaning teeth are used to clean the gap between the adjacent crushing teeth.

[0006] The surface of the drill bit is provided with inclined washing holes. The washing holes extend from the stepped protrusion position on the side surface of the connecting pipe to the bottom of the connecting pipe between the adjacent crushing teeth.

[0007] As a further scheme of the present application, the surface of the drilling pipe is provided with a sampling outlet. An arc-shaped sealing cover is fixedly installed in the sampling outlet. A recess is formed in the inner wall surface of the drilling pipe. An inner liner pipe is installed in the recess. The sample cut by the drill bit can be moved to the inside of the inner liner pipe. The sampling outlet is used to take out the inner liner pipe.

[0008] As a further scheme of the present application, two sides adjacent to the breaking teeth are provided with buffer grooves, and the rotating shafts are respectively arranged in the buffer grooves.

[0009] As a further scheme of the present application, the two sides adjacent to the breaking teeth are provided with replacement grooves.

[0010] As a further scheme of the present application, the side wall of the replacement groove is provided with a blocking groove, and a blocking block is elastically and slidably connected in the blocking groove through an elastic block.

[0011] As a further scheme of the present application, the surface of the connecting pipe is fixedly connected with an inclined shielding block above the flushing hole.

[0012] As a further scheme of the present application, the flushing hole is fixedly connected with a fixing frame, and a sliding rod is elastically and slidably connected to the fixing frame, the sliding rod penetrates through the fixing frame and extends to the breaking teeth between the bottom of the connecting pipe, and the bottom of the sliding rod is above the rotating column.

[0013] As a further scheme of the present application, the surface of the connecting pipe is elastically and slidably connected with an L-shaped jacking rod, the bottom of the jacking rod is above the upper end of the sliding rod, the upper end of the sliding rod extends to above the shielding block after penetrating through the shielding block, the upper end of the jacking rod is fixedly connected with a shielding ring, the surface of the drilling pipe away from the sealing cover is provided with an inclined communication hole, and the communication hole is in communication with the groove after penetrating through the drilling pipe.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] When the present application is used for surveying and sampling the geology of a marine mining area, the rotating column and the cleaning teeth can rotate under the driving of the silt and debris, the rotation of the rotating column can increase the silt discharge effect of the drill bit, avoid the aggregation and adhesion of the silt and debris in the gaps between the plurality of breaking teeth, and the cleaning teeth can stir and clean the silt and debris that have been adhered between the plurality of breaking teeth, so that the silt and debris adhered between the breaking teeth can be stripped and flow away with the water flow, avoiding the adhesion of the silt and debris between the plurality of breaking teeth, which can increase the friction between the drill bit and the seabed sediment, thereby increasing the burden of the drill bit during the drilling process, increasing unnecessary energy consumption, reducing the service life of the drill bit, and using the flushing hole to flush the gaps between the breaking teeth, cooperating with the stripping of the cleaning teeth to the silt and debris between the breaking teeth, which can further clean the residual debris between the breaking teeth.

[0016] The present application is sealed in the process of drilling sampling, the sealing valve opens, the sample passes through the drill bit and the sealing valve moves to the inside of the inner liner pipe, then the sealing valve is closed after the drilling sampling is finished, the sample is sealed in the inside of the drilling pipe, the drilling pipe moves to take out the sample, then the sealing cover is removed, the inner liner pipe and the sample in the inside of the inner liner pipe are taken out through the taking-out port, which is favorable for quickly taking out the sample from the drilling pipe, the inner liner pipe can protect the sample, guarantees the integrity of the sample, and avoids sample breakage in the taking-out process.

[0017] In the process of drilling sampling, a large amount of silt and debris is present between adjacent crushing teeth, the rotating column and the rotating shaft are pressed by silt to move to the side close to the connecting pipe, the rotating shaft moves in the buffer groove, the buffer block is compressed, the buffer block can slow down the impact of the rotating shaft during movement, and normal work of the rotating shaft and the rotating column is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the overall structure of the present application;

[0019] Figure 2 It is a schematic view of the overall structure of the present application;

[0020] Figure 3 It is a schematic view of the structure of the drilling pipe in the present application;

[0021] Figure 4 It is a schematic view of the structure of the drill bit in the present application;

[0022] Figure 5 It is an exploded schematic view of the drilling pipe, the inner liner pipe and the sealing cover in the present application;

[0023] Figure 6 It is a schematic view of the structure of the drilling pipe in the present application;

[0024] Figure 7 It is Figure 6 a schematic view of the structure at A in the present application;

[0025] Figure 8 It is Figure 6 a schematic view of the structure at B in the present application;

[0026] Figure 9 It is Figure 6 a schematic view of the structure at C in the present application.

[0027] In the drawing: 1- mounting frame, 2- sealing valve, 3- support leg, 4- driving drill, 5- drilling pipe, 6- drill bit, 7- connecting pipe, 8- crushing tooth, 9- outlet, 10- sealing cover, 11- groove, 12- inner liner pipe, 13- rotating shaft, 14- rotating column, 15- cleaning tooth, 16- buffer groove, 17- buffer block, 18- replacement groove, 19- blocking groove, 20- blocking block, 21- elastic block, 22- flushing hole, 23- shielding block, 24- fixing frame, 2401- sliding rod, 25- jacking rod, 26- shielding ring, 27- communication hole. DETAILED DESCRIPTION

[0028] Please refer to Figures 1-9 The present application provides a technical solution: a columnar sediment cutting sampling device for marine mining area geological survey, comprising a mounting frame 1, a support leg 3, a driving drill 4, a drilling pipe 5 mounted inside the driving drill 4, a sealing valve 2 mounted inside the drilling pipe 5, and a drill bit 6 mounted at the end of the drilling pipe 5, the drill bit 6 is composed of a connecting pipe 7 and a plurality of equally angularly arranged crushing teeth 8, the surface of the connecting pipe 7 near the crushing teeth 8 side is provided with a stepped protrusion formed by increasing the diameter, a rotating shaft 13 is arranged between the two adjacent crushing teeth 8, the surface of the rotating shaft 13 is rotatably connected with a rotating column 14, and the surface of the rotating column 14 is fixedly connected with a plurality of conical cleaning teeth 15, the cleaning teeth 15 are used for cleaning the gap between the adjacent crushing teeth 8.

[0029] The surface of the drill bit 6 is provided with an inclined flushing hole 22, the flushing hole 22 extends from the stepped protrusion position of the side surface of the connecting pipe 7 to the bottom of the connecting pipe 7 between the adjacent crushing teeth 8.

[0030] When the geological survey sampling of the marine mining area is carried out, first, the cutting sampling device is used to stably support the mounting frame 1 through the support leg 3, the driving drill 4 drives the drilling pipe 5 and the drill bit 6 to rotate to drill the marine sediment, the sealing valve 2 is opened, the crushing teeth 8 cut into the marine sediment to crush the marine sediment, there will be a large amount of silt and debris between the adjacent crushing teeth 8, the silt and debris generated during the drilling process flow from the surface of the rotating column 14, the rotating column 14 and the cleaning tooth 15 can be driven to rotate by the silt and debris, the rotation of the rotating column 14 can guide the movement of the debris to increase the silt discharge effect of the drill bit 6, avoid the silt and debris from gathering and adhering to the gap between the plurality of crushing teeth 8, thereby causing the friction between the drill bit 6 and the marine sediment to increase, increasing the burden of the drill bit 6, causing unnecessary energy loss, affecting the drilling efficiency of the drill bit 6, and the cleaning tooth 15 can stir and clean the silt and debris between the plurality of crushing teeth 8, so that the silt and debris adhering between the crushing teeth 8 can be cleaned and peeled off and washed away by the water flow, avoiding the salt and sulfide contained in the silt and debris adhering between the plurality of crushing teeth 8 from accelerating the corrosion of the drill bit 6, affecting the strength of the drill bit 6, and reducing the service life of the drill bit 6.

[0031] When the drilling pipe 5 and the drill bit 6 move upward after the drilling is completed, the sealing valve 2 is closed, the water flows into the gap between the crushing teeth 8 through the flushing holes 22 on the side of the connecting pipe 7, the stripping of the silt and debris between the crushing teeth 8 is assisted by the cleaning teeth 15, and the residual debris between the crushing teeth 8 can be further removed. During the drilling process, the drilling range of the crushing teeth 8 is large, the flushing holes 22 are located in the stepped protruding position on the surface of the connecting pipe 7, and when the drilling pipe 5 and the connecting pipe 7 move upward, a certain gap is left between the flushing holes 22 and the drill hole, and the water flow can flow into the flushing holes 22.

[0032] When the geological survey sampling of the marine mining area is carried out, the sample is usually discharged from the end of the drilling pipe 5, which is cumbersome to take out and easy to break the sample during the taking-out process. As a further scheme of the present application, a taking-out port 9 is formed on the surface of the drilling pipe 5, an arc-shaped sealing cover 10 is fixedly installed in the taking-out port 9, a recess 11 is formed on the inner wall surface of the drilling pipe 5, and an inner liner pipe 12 is installed in the recess 11. The sample cut by the drill bit 6 can move to the inside of the inner liner pipe 12, and the taking-out port 9 is used to take out the inner liner pipe 12;

[0033] During the drilling sampling process, the sealing valve 2 is opened, the sample moves to the inside of the inner liner pipe 12 through the drill bit 6 and the sealing valve 2, then the sealing valve 2 is closed to seal the sample in the drilling pipe 5 after the drilling sampling is completed, the drilling pipe 5 moves to take out the sample, then the sealing cover 10 is removed, and the inner liner pipe 12 and the sample in the inner liner pipe 12 are taken out through the taking-out port 9, which is beneficial to quickly take out the sample from the drilling pipe 5. The inner liner pipe 12 can protect the sample and ensure the integrity of the sample, avoiding the breakage of the sample during the taking-out process.

[0034] During the drilling sampling process, the impact force on the rotating shaft 13 is large, and as a further scheme of the present application, a buffer groove 16 is formed on both sides of the adjacent crushing teeth 8 close to each other, the two ends of the rotating shaft 13 are respectively located in the two buffer grooves 16, and an elastically expandable buffer block 17 is fixedly connected in the buffer groove 16, and the end of the buffer block 17 is attached to the surface of the rotating shaft 13.

[0035] During the drilling sampling process, there is a large amount of silt and debris between the adjacent crushing teeth 8, the rotating column 14 and the rotating shaft 13 are pressed by the silt and move to the side close to the connecting pipe 7, the rotating shaft 13 moves in the buffer groove 16, and the buffer block 17 is compressed. The buffer block 17 can reduce the impact on the rotating shaft 13 during movement, and ensure the normal work of the rotating shaft 13 and the rotating column 14.

[0036] In the process of drilling sampling, the cleaning tooth 15 wears out quickly and needs to be replaced. As a further scheme of the present application, the two sides of the adjacent crushing tooth 8 close to each other are provided with a replacement slot 18, and the replacement slot 18 is communicated with the buffer slot 16.

[0037] In the process of drilling sampling, when the cleaning tooth 15 needs to be replaced after wearing out, the rotating shaft 13 and the rotating column 14 can be taken out through the replacement slot 18, which is beneficial to disassemble and replace the rotating shaft 13 and the rotating column 14 after the cleaning tooth 15 wears out, ensures the continuous use of the drill bit 6, and prolongs the service life of the drill bit 6.

[0038] In the process of drilling sampling, the rotating shaft 13 is easy to move into the replacement slot 18. As a further scheme of the present application, the side wall of the replacement slot 18 is provided with a blocking slot 19, and the blocking block 20 is elastically and slidably connected in the blocking slot 19 through the elastic block 21, and the side of the blocking block 20 away from the buffer slot 16 is a slope.

[0039] In the process of drilling sampling, the blocking block 20 can block the replacement slot 18 during drilling, so that the rotating shaft 13 cannot be moved out through the replacement slot 18 during drilling, thereby affecting normal drilling.

[0040] When the drilling pipe 5 moves upward after drilling is completed, the scattered debris in the drill hole will fall into the flushing hole 22. As a further scheme of the present application, the connecting pipe 7 is fixedly connected with an inclined shielding block 23, and the shielding block 23 is above the flushing hole 22.

[0041] When the drilling pipe 5 moves upward after drilling is completed, the shielding block 23 can block the upper part of the flushing hole 22, so that the falling debris falls along the shielding block 23 to one side of the flushing hole 22, preventing the scattered debris from moving into the flushing hole 22 along the water flow and causing the flushing hole 22 to be blocked, thereby affecting the cleaning of the drill bit 6.

[0042] In the process of drilling, a large amount of silt and debris will move with the water flow, and the silt or debris will still move into the flushing hole 22 and block the flushing hole 22. As a further scheme of the present application, the flushing hole 22 is fixedly connected with a fixing frame 24, the fixing frame 24 is elastically and slidably connected with a sliding rod 2401, the sliding rod 2401 penetrates through the fixing frame 24 and extends between the crushing teeth 8 at the bottom of the connecting pipe 7, and the bottom of the sliding rod 2401 is above the rotating column 14.

[0043] In the process of drilling, the rotating shaft 13 and the rotating column 14 move upward under the extrusion of silt and debris, the rotating column 14 pushes the sliding rod 2401 to move upward, the bottom of the sliding rod 2401 abuts against the position of the surface of the rotating column 14 without the cleaning tooth 15, the rotating column 14 rotates the sliding rod 2401 to move on the surface of the rotating column 14, which can clean the silt or debris attached to the surface of the rotating column 14, and then when the drilling pipe 5 moves upward after the drilling is completed, the rotating shaft 13 and the rotating column 14 move downward, the sliding rod 2401 moves under the action of the elastic force, and the movement of the sliding rod 2401 in the flushing hole 22 can loosen the silt and debris blocked in the flushing hole 22, so that the silt and debris flow away with the water flow, thereby avoiding that the flushing hole 22 is blocked during the drilling, so that the gap between the broken teeth 8 cannot be flushed.

[0044] When the sample is taken out after the drilling is completed, the inner liner pipe 12 closely abuts against the inner wall of the groove 11, and there is water between the inner liner pipe 12 and the drilling pipe 5, the inner liner pipe 12 is more difficult to be taken out from the inside of the drilling pipe 5 under the action of the water tension, and there is a further scheme of the application that the surface of the connecting pipe 7 elastically and slidably connects the L-shaped ejecting rod 25, the bottom of the ejecting rod 25 is above the upper end of the sliding rod 2401, the upper end of the sliding rod 2401 extends to above the blocking block 23 after penetrating through the blocking block 23, the upper end of the ejecting rod 25 is fixedly connected with the blocking ring 26, and the surface of the drilling pipe 5 away from the sealing cover 10 is provided with the inclined communication hole 27, which penetrates through the drilling pipe 5 and then communicates with the groove 11;

[0045] In the process of drilling, the rotating shaft 13 and the rotating column 14 move upward, the rotating column 14 pushes the sliding rod 2401 to move upward, the sliding rod 2401 pushes the ejecting rod 25 and the blocking ring 26 to move upward together, the blocking ring 26 can move to the position of the communication hole 27 to block the communication hole 27, then after the drilling is completed, the sliding rod 2401 and the ejecting rod 25 move downward, and the blocking ring 26 moves downward to below the communication hole 27, when the inner liner pipe 12 and the sample are taken out, the sealing cover 10 is opened, and the communication hole 27 can make the inside of the groove 11 enter air through the communication hole 27 when the inner liner pipe 12 is taken out, so that the inner liner pipe 12 can be quickly taken out.

Claims

1. A columnar sediment cutting sampling device for marine mining area geological exploration, comprising a mounting frame (1), a supporting leg (3), a driving drill (4), a drilling pipe (5) mounted inside the driving drill (4), a sealing valve (2) mounted inside the drilling pipe (5), and a drill bit (6) mounted at the end of the drilling pipe (5), characterized in that: The drill bit (6) is composed of a connecting pipe (7) and a plurality of equiangularly arranged crushing teeth (8), the surface of the connecting pipe (7) is provided with a stepped protrusion formed by increasing the diameter near the side of the crushing tooth (8), a rotating shaft (13) is arranged between the two adjacent crushing teeth (8), the surface of the rotating shaft (13) is rotatably connected with a rotating column (14), a plurality of conical cleaning teeth (15) are fixedly connected to the surface of the rotating column (14), and the cleaning teeth (15) are used for cleaning the gap between the adjacent crushing teeth (8). The surface of the drill bit (6) is provided with an inclined arranged flushing hole (22), the flushing hole (22) extends from the stepped protrusion position of the side surface of the connecting pipe (7) to the bottom of the connecting pipe (7) between the adjacent crushing teeth (8). The two sides of the adjacent crushing teeth (8) are provided with a buffer groove (16), the two ends of the rotating shaft (13) are respectively located in the two buffer grooves (16), and the buffer groove (16) is fixedly connected with an elastically expandable buffer block (17), the end of the buffer block (17) is attached to the surface of the rotating shaft (13). The surface of the connecting pipe (7) is fixedly connected with an inclined arranged blocking block (23), and the blocking block (23) is located above the flushing hole (22). The flushing hole (22) is fixedly connected with a fixed frame (24), the fixed frame (24) is elastically and slidably connected with a sliding rod (2401), the sliding rod (2401) penetrates through the fixed frame (24) and extends to the gap between the crushing teeth (8) at the bottom of the connecting pipe (7), and the bottom of the sliding rod (2401) is located above the rotating column (14).

2. A columnar sediment cutting sampler for geological survey of marine mining area according to claim 1, characterized in that: The surface of the drilling pipe (5) is provided with a take-out port (9), the take-out port (9) is fixedly connected with an arc-shaped sealing cover (10), the inner wall surface of the drilling pipe (5) is provided with a groove (11), the groove (11) is provided with an inner liner pipe (12), the sample cut by the drill bit (6) can move to the inner liner pipe (12), and the take-out port (9) is used for taking out the inner liner pipe (12).

3. A columnar sediment cutting sampler for geological survey of marine mining area according to claim 1, characterized in that: The two sides of the adjacent crushing teeth (8) are provided with a replacement groove (18), and the replacement groove (18) is communicated with the buffer groove (16).

4. A columnar sediment coring device for geological survey of marine mining areas according to claim 3, characterized in that: The side wall of the replacement groove (18) is provided with a blocking groove (19), the blocking groove (19) is elastically and slidably connected with a blocking block (20) through an elastic block (21), and the side, away from the buffer groove (16), of the blocking block (20) is inclined.

5. A columnar sediment coring device for geological survey of marine mining area according to claim 2, characterized in that: The surface of the connecting pipe (7) is elastically and slidably connected with an L-shaped jacking rod (25), the bottom of the jacking rod (25) is located above the upper end of the sliding rod (2401), the upper end of the sliding rod (2401) penetrates through the blocking block (23) and extends to above the blocking block (23), the upper end of the jacking rod (25) is fixedly connected with a blocking ring (26), the surface of the drilling pipe (5), away from the sealing cover (10), is provided with an inclined arranged communication hole (27), and the communication hole (27) penetrates through the drilling pipe (5) and is communicated with the groove (11).

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