CN112443276B - A tight rock geological exploration sampling drilling system and its working method - Google Patents

Abstract

The utility model provides a tight rock geological exploration sampling drilling system, including the truck, ordinary drill bit, the special drill bit of geological coring, electronic slips, slips driving motor, gantry crane device, well drilling guide tube subassembly, the top is driven, water supply installation and waste fitting discharging, the truck includes locomotive and automobile body, it is preceding to use the locomotive orientation, set up the platform floor on the automobile body, the round hole has been seted up at the middle part of platform floor, electronic slips fixed mounting is at the lower surface of platform floor, slips driving motor drives and connects electronic slips, gantry crane device fixed mounting is on the platform floor, well drilling guide tube subassembly is installed at the middle part of platform floor, the cable and the top drive fixed connection that gantry crane device put, water supply installation and waste fitting discharging all set up on the platform floor. The device and equipment used in the whole operation of the invention are realized on a movable truck, the invention has complete maneuverability, the coring operation process is not limited by terrain and landform, the speed and the accuracy are high, and a new thought and a new device are provided for geological exploration sampling.

Description

A tight rock geological exploration sampling drilling system and its working method

technical field

The invention relates to the field of geological exploration of tight rocks, in particular to a sampling drilling system for geological exploration of tight rocks and a working method thereof.

Background technique

Tight rock oil and gas is a kind of unconventional oil and gas resources. It is widely distributed all over the world, and it is also widely distributed in China. It has broad development potential. However, the degree of exploration in my country is still relatively low. One of the main reasons is that the geology is complex and the development Factors such as remote wells increase the difficulty of exploration and development. Geological exploration sampling is an effective means to obtain the geological conditions of underground tight rocks. At present, geological exploration sampling is mainly connected to ordinary drill bits through drill pipes, and the power is applied through the wellhead drilling rig, which is transmitted to the drill bit through the drill pipe, so that the drill bit cuts and impacts the formation. When the well is In ultra-deep wells, the geology is relatively complicated, and power is applied entirely by the wellhead, which may cause excessive torsional deformation of the drill pipe, or even direct twisting, resulting in serious accidents; in addition, because the development well is likely to be located in remote geological conditions, even steep roads often occur , which makes the transportation of the drilling rig difficult, so a drilling rig that is easy to transport and adapt to the steep road environment is provided, and a multifunctional drill bit that can supply cutting and impact power is designed to form a new tight rock geological exploration sampling The system is of great significance for improving the convenience and safety of drilling exploration and sampling, and saving labor costs.

Contents of the invention

The purpose of the present invention is to provide a tight rock geological exploration sampling drilling system and its working method. The used device and equipment of the whole operation of the present invention are all realized on a movable truck, which has complete mobility, and the coring operation process does not need to be charged. Restricted by topography and topography, fast and accurate, it provides a new idea and device for geological exploration sampling.

To achieve the above object, the present invention adopts the following technical solutions:

A drilling system for tight rock geological exploration and sampling, including a truck, a common drill bit, a special drill bit for geological coring, an electric slip, a slip drive motor, a gantry crane, a drilling guide pipe assembly, a top drive, a water supply device and a sewage discharge device. The truck includes The front of the car and the body, with the front facing forward, the car body is equipped with a car floor, and the ordinary drill bit and the special drill bit for geological coring are placed on the car floor. In the middle of the lower surface of the carriage floor and directly below the round hole, the slip driving motor is fixedly installed in the middle of the left side of the lower surface of the carriage floor and drives and connects the electric slips. The guide pipe assembly is installed in the middle of the carriage floor and directly below the gantry crane device. The lower end of the cable of the gantry crane device is fixedly connected to the upper end of the top drive. Both the water supply device and the sewage device are installed on the carriage floor. The front side of the carriage floor is fixed There is a first fixed frame on which several drill pipes are placed, a second fixed frame is fixedly installed on the rear side of the carriage floor, and several formation well casings are placed on the second fixed frame.

The gantry crane device includes a horizontal frame, a horizontal sliding plate, a cable reel and a cable winding motor. The horizontal frame is composed of two first horizontal guide rails and two first vertical support plates. The length directions of the two first horizontal guide rails are along the The front and back directions are arranged horizontally, the two first horizontal guide rails are arranged side by side, the two first vertical support plates are arranged vertically along the left and right directions, the two first vertical support plates are arranged front and back side by side, and the first vertical support plates on the front side are arranged side by side. The support plate is fixedly connected to the front ends of the two first horizontal guide rails, the first vertical support plate on the rear side is fixedly connected to the rear ends of the two first horizontal guide rails, and four vertical columns are fixedly connected to the floor of the carriage. The vertical projection of the vertical column is located at the four corners of the rectangle, the bottom of the first horizontal guide rail on the left is fixedly connected to the top of the two vertical columns on the left, and the bottom of the first horizontal guide rail on the right is fixedly connected to the two vertical columns on the right The top of the vertical column and the bottom of the horizontal sliding plate are slidably connected to the two first horizontal guide rails. The middle part of the horizontal sliding plate is provided with a long hole for threading through the upper and lower sides. The middle part of the horizontal sliding plate is fixed with a long hole for threading The reel bracket directly above, the cable reel is rotated and installed on the reel bracket, the cable winding motor is fixedly installed in the middle of the right side of the horizontal sliding plate, the central axis of the cable reel and the power axis of the cable winding motor are both along the left and right The direction is set horizontally, the left end of the power shaft of the cable winding motor is driven and connected to the right end of the central axis of the cable reel, and the cable reel is wound with coiled cables. The upper end of the upper end is fixedly connected, and two racks are fixedly connected between the two first vertical support plates, and the two racks are arranged symmetrically. The left rack is located at the lower left of the left guide rail, and the right rack is located At the bottom right of the guide rail on the right side, a vertical servo reduction motor is fixedly installed around the horizontal sliding plate. The first driving gear is connected to the rack on the left, and the two driving gears on the right are connected to the rack on the left;

The front side of the first vertical support plate on the front side, the rear side of the first vertical support plate on the rear side, the front middle part of the upper surface of the horizontal sliding plate and the rear side middle part are all fixedly installed with pipeline guide wheel set seats, which are installed on the front side The pipeline guide wheel set seat on the front side of the first vertical support plate consists of a door-shaped support plate and two guide wheels. The upper, lower and front sides of the door-shaped support plate are open, and the door-shaped support plate The front sides of the left and right sides of the board are fixedly connected to the rear side of the first vertical support plate on the rear side. The two guide wheels are arranged side by side and the central axis is horizontally arranged along the left and right directions. The left and right ends of the central axis of the two guide wheels rotate respectively. It is installed on the left and right side plates of the door-shaped support plate.

The drilling guide pipe assembly includes a first guide pipe and a second guide pipe. The first guide pipe, the second guide pipe and the center line of the round hole coincide. The lower end of the first guide pipe is set at the center of the round hole and is connected to the electric slip The center hole of the first guide tube is butted up and down, and the outer circumference of the lower end of the first guide tube is fixedly connected with four connecting rods arranged in a circular array. On the inner circle of the hole, the outer diameter of the second guide tube is the same as the inner diameter of the first guide tube, the second guide tube is inserted into the first guide tube, and the upper side of the second guide tube extends out of the first guide tube. At the upper end, the left side wall and the right side wall of the first guide pipe are provided with long guide holes vertically, and the lower side of the left side wall and the right side wall of the second guide pipe are fixedly connected with a The limit guide rod is set horizontally, the limit guide rod on the left is correspondingly plugged into the long guide hole on the left and is slidably connected with the long guide hole on the left, the limit guide rod on the right is correspondingly inserted into the In the long guide hole on the right side and slidingly connected with the long guide hole on the right side, two sets of connecting rod drive devices for driving the second guide tube to move up and down are fixedly installed on the floor of the carriage;

The two sets of connecting rod driving devices have the same structure and are symmetrically arranged front and rear with respect to the first guide tube. The connecting rod driving device on the rear side includes a horizontal servo gear motor, a horizontal screw, a sliding support and the first connecting rod, a horizontal servo gear motor and a horizontal Lead screws are arranged horizontally along the front-to-back direction. Two second horizontal guide rails located between the round hole and the rear side of the carriage floor are fixedly installed on the carriage floor along the front-to-rear direction. The two second horizontal guide rails are arranged side by side. The horizontal lead screw Located in the middle of the two second horizontal guide rails, the front side and rear side of the two second horizontal guide rails are fixedly connected with the second vertical support plate, the second vertical support plate is vertically arranged along the left and right direction, and the horizontal servo The geared motor is fixedly installed on the rear side of the second vertical support plate on the rear side. The front end of the power shaft of the horizontal servo geared motor passes through the second vertical support plate on the rear side and is connected to the rear end of the horizontal lead screw by transmission. The front end is rotatably installed on the second vertical support plate on the front side, the middle part of the sliding support is screwed on the horizontal screw rod, and the left and right sides of the bottom of the sliding support are respectively slidably connected to two second horizontal guide rails. The connecting rods are set with a high front and a low rear, the lower end of the first connecting rod is hinged on the sliding support, the upper end of the first connecting rod is hinged on the upper side of the rear side wall of the second guide tube, and the upper end of the first connecting rod is hinged on the shaft and the hinge shaft at the lower end are arranged horizontally along the left and right directions;

The outer circumference of the upper end of the second guide tube is fixedly connected with a first circular support, and the outer circumference of the upper side of the second guide tube is slidably connected with a ring located directly below the first circular support and sleeved on the second guide tube. There are two first hydraulic cylinders hinged between the first circular support and the second circular support, and the two first hydraulic cylinders are symmetrically arranged on the front and rear sides of the second guide pipe. On the front side and the rear side, several second connecting rods arranged in a circular array are arranged around the second guide pipe, the upper end of the second connecting rod is hinged on the first circular support, and the lower end of the second connecting rod is fixedly installed There is an anchor bolt fixing seat, the upper side of each second connecting rod is hinged with a third connecting rod, and the lower end of each third connecting rod is hinged on the second circular support, and the second connecting rod The upper hinge shaft, the upper hinge shaft and the lower hinge shaft of the third connecting rod are all arranged horizontally and perpendicular to the length direction of the second connecting rod, the first circular support, each second connecting rod, and each third connecting rod The rod and the second annular support form a drilling guide pipe fixing frame similar to an umbrella skeleton structure.

The water supply device includes a water supply tank, a high-pressure water supply pump, a high-pressure water inlet pipeline and a high-pressure water supply reel. On the fixed frame, the water outlet of the water supply tank is connected to the central water inlet of the high-pressure water supply pipe reel through the high-pressure water supply pipe. One end of the water pipeline is connected to the water outlet of the high-pressure water inlet reel, and the other end of the high-pressure water inlet pipeline protrudes from the high-pressure water inlet reel and passes vertically upward through the two guides installed on the first vertical support plate on the front side. In the middle of the wheel, the other end of the high-pressure water inlet line is bent horizontally and passes back through the middle of the two guide wheels installed in the middle of the front side of the upper surface of the horizontal sliding plate, and the other end of the high-pressure water inlet line is bent down and passes through Slide the board horizontally.

The sewage discharge device includes a sewage discharge tank, a sewage discharge pump, a sewage discharge pipeline and a sewage discharge pipe reel. The water inlet is connected to the center outlet of the sewage pipe reel through the return pipe, the sewage pump is installed on the return pipe, the sewage pipeline is wound on the sewage pipe reel, and one end of the sewage pipeline is connected to the water inlet of the sewage pipe reel, and the sewage is discharged The other end of the pipeline protrudes from the sewage pipe reel and passes vertically upwards between the two guide wheels installed on the first vertical support plate on the rear side, and the other end of the sewage pipeline is bent horizontally and passes through the horizontal In the middle of the two guide wheels at the middle part of the rear side of the upper surface of the sliding plate, the other end of the sewage pipeline is bent downwards and passes through the horizontal sliding plate.

The special drill bit for geological coring includes the excavation part, the crushing part and the cutting part. The excavation part, the crushing part and the cutting part are connected sequentially from top to bottom. The bottom is movably connected with the top of the crushing part, and the top of the cutting part is rotatably connected with the bottom of the crushing part. The excavation part is provided with a high-pressure water supply ring cavity and a sewage channel. The lower end of the head is connected with the sewage channel, the crushing part is provided with a flushing ring cavity, and the inside of the flushing ring cavity is provided with a crushing channel connected with the sewage channel, and the high-pressure water supply ring cavity is connected with the flushing ring cavity through several high-pressure hoses, and the cutting part is provided with The cutting channel is transparent up and down and connected with the crushing channel. There are several high-pressure water spray channels transparent up and down on the cutting part. The upper port of each high-pressure water spray channel is connected with the flushing ring cavity. The lower port of the water channel is connected to the high-pressure water spray ring cavity, and the bottom of the cutting part is rotated with several cutting wheels in a circular array. The nozzles of the nozzles are respectively arranged facing each cutting wheel, and the outer circumference of the excavation part and the outer circumference of the crushing part are arranged in a circumferential array along a number of support mechanisms that are in tight contact with the well wall;

The excavation part includes the excavation cylinder, the top and bottom of the excavation cylinder are open, the top of the excavation cylinder is fixedly connected with the upper flange end cover, the bottom of the excavation cylinder is fixedly connected with the lower flange end cover, and the upper flange end The middle part of the cover and the lower flange end cover is provided with up and down transparent drain holes, and a sewage pipe is fixedly connected between the upper flange end cover and the lower flange end cover, and the sewage discharge channel is formed in the sewage pipe, and the sewage pipe The upper port and the lower port are respectively connected to the upper sewage discharge hole and the lower sewage discharge hole. The lower end of the sewage pipe connector is fixedly connected to the middle of the upper flange end cover and connected to the upper sewage discharge hole. The high-pressure water supply annular cavity is formed between the inner circles of the cylinder, and there are four high-pressure water inlet pipe connectors, and the four high-pressure water inlet pipe connectors are arranged in a circular array around the sewage pipe connector, and the four high-pressure water inlet pipes are connected. The lower end of the head is fixedly installed on the upper flange end cover and communicates with the high-pressure water supply ring cavity. The middle part of the lower flange end cover is fixedly connected with a bellows, and the upper port of the bellows is connected with the lower drain hole. Four, four high-pressure hoses are arranged in a circular array around the bellows, the upper ends of the four high-pressure hoses are fixedly installed on the lower flange end cover and communicate with the high-pressure water supply ring cavity, and the outer edge of the lower flange end cover is fixed Four second hydraulic cylinders arranged in a circular array are installed. The second hydraulic cylinder is vertically arranged. The piston rod of the second hydraulic cylinder protrudes downward from the cylinder body. The top of the cylinder body of the second hydraulic cylinder is hinged on the lower flange end cover. ;

The crushing part includes a crushing cylinder. The top and bottom of the crushing cylinder are both open. A friction pipe is arranged concentrically in the crushing cylinder. The upper end of the friction pipe is integrally formed and fixedly connected with the top of the crushing cylinder. The inner diameter of the sewage hole is the same, the outer diameter of the friction pipe is smaller than the inner diameter of the crushing cylinder, the lower end of the friction pipe is located at the lower side of the crushing cylinder, and the top of the crushing cylinder is equipped with a first Thrust bearing, the outer circle of the first thrust bearing is in contact with the inner circle of the crushing cylinder, several first water seals are set on the outer circumference of the friction tube, and a conductive sliding sleeve is set on the outer circumference of the lower side of the friction tube. The outer circumference of the bottom of the friction tube is provided with a deep groove ball bearing. The lower end of the bellows is fixedly connected to the middle of the upper surface of the crushing cylinder and connected to the upper port of the friction tube. The pistons of the four second hydraulic cylinders The lower end of the rod is hinged on the outer edge of the upper surface of the crushing cylinder, and the lower ends of the four high-pressure hoses are fixedly installed on the upper surface of the crushing cylinder. There are four high-pressure water jets on the upper surface of the crushing cylinder. The lower ends of the four high-pressure water jets are respectively connected to the upper ends of the four high-pressure water jets. There are four high-pressure water jets around the upper side of the inner wall of the crushing cylinder, and the lower ends of the four high-pressure water jets lead to the four high-pressure water jets. , the inner wall of the friction tube is uniformly provided with long friction grooves along the axial direction, the above-mentioned crushing channel is formed inside the friction tube, and the bottom of the crushing cylinder is integrally formed with a column;

The cutting part includes a cutting cylinder, the top and bottom of the cutting cylinder are open, the cutting channel is formed inside the cutting cylinder, the top of the cutting cylinder is integrally formed with the center and fixedly connected with a diversion cylinder, and the diversion cylinder Both the top and the bottom of the diversion cylinder are open, the inner circle of the bottom of the diversion cylinder is fixedly connected with the radial plate support, the center of the diversion cylinder is provided with a crushing shaft, the lower end of the crushing shaft is fixedly connected to the middle of the radial plate support, and the diversion cylinder The body is inserted into the crushing cylinder and sleeved on the outside of the friction tube. The scour ring cavity is formed between the outer circle of the diversion cylinder and the inner circle of the crushing cylinder, and the crushing shaft extends into the friction tube. The crushing shaft is integrally formed with spiral cutting blades along the axial direction, and the outer circumference of the guide cylinder is integrally formed with spiral guide vanes in the opposite direction of rotation to the spiral cutting blades along the axial direction, and the outer circle of the upper side of the guide cylinder is integrated A number of rotating blades are formed in a circular array. The upper outer circle of the guide cylinder is fixedly connected with an annular plate. The top outer circumference of the guide cylinder is provided with a second thrust bearing. The outer circle of the second thrust bearing is connected to the crushing The inner circle of the cylinder is in contact, the upper surface of the second thrust bearing is in pressure contact with the lower surface of the annular plate, the inner edge of the upper surface of the annular plate is in pressure contact with the outer edge of the lower surface of the first thrust bearing, and each first water seal , conductive slip rings and deep groove ball bearings are all embedded between the diversion cylinder and the friction pipe, the injection directions of the four high-pressure water jet holes are respectively set towards each rotating blade, and the top of the cutting cylinder is opened along the circumferential direction. There is a rotating ring groove with an open top, and the pipe string is installed in the rotating ring groove correspondingly for rotation, and the second water seal sleeved on the outer circumference of the pipe string is arranged in the rotating ring groove;

The bottom of the cutting cylinder is fixedly equipped with a coring seat, and the middle part of the coring seat is provided with a coring channel that is transparent up and down and connected with the cutting channel. The bottom of the coring seat is fixedly connected with a slag discharge seat, and the middle part of the There is a slag discharge channel that is transparent up and down and docked with the slag discharge channel. Each high-pressure water spray channel is vertically connected to the eccentric part of the cutting cylinder, the coring seat and the slag discharge seat, and the bottom of the cutting cylinder and the coring seat. All have arc-shaped placement grooves, the arc-shaped placement grooves on the upper side are connected to the lower port of the cutting channel, the arc-shaped placement grooves on the lower side are connected to the lower port of the coring channel, and the inner wall side of the lower port of the cutting channel and Waterproof motors are installed on one side of the inner wall of the lower port of the coring channel, and the waterproof motors are installed vertically. The upper ends of the power shafts of the two waterproof motors are fixedly connected with baffles, and the upper baffles are arranged in an arc that slides on the upper side slot and is used to block the lower port of the cutting channel, and the lower baffle slides correspondingly in the arc-shaped placement groove on the lower side and is used to block the lower port of the coring channel. Both waterproof motors pass waterproof cables and conductive slip rings Connection, the middle part of the slag discharge seat is provided with an annular groove, the bottom of the slag discharge seat is fixedly installed with a cutting flange seat, and the middle part of the cutting flange seat is provided with a slag discharge hole that is transparent up and down and connected with the slag discharge channel. The above-mentioned high-pressure water spray ring cavity is formed between the top of the orchid seat and the annular groove, and the bottom of the cutting flange seat is fixedly connected with a conical slag collecting hopper with a small upper part and a larger lower part. The slag hole is docked, and the outer edge of the bottom of the cutting flange seat is provided with several pillars in a circumferential array. Each cutting wheel rotates on each pillar respectively. The central axis of each cutting wheel is set along the radial direction of the cutting flange seat. The cutting surfaces of the cutting wheels are all set towards the center of the cutting flange seat, and the inner end of the central axis of each cutting wheel is fixedly installed with a driving impeller, and each high-pressure nozzle is fixedly installed on the cutting flange seat, and each high-pressure nozzle The nozzles are respectively arranged downwards towards the upper side of each driving impeller;

Both the outer circumference of the excavation cylinder and the outer circumference of the crushing cylinder are provided with four installation grooves arranged in a circular array. The lower and front sides of the front installation grooves are open, and each installation groove is installed with The above-mentioned supporting mechanism, the supporting mechanism on the front side includes a hinged support, a vertical support plate and a third hydraulic cylinder, the hinged support is fixed and installed on the bottom of the installation groove on the front side through several screws, and the vertical support plate is vertically aligned along the left and right directions. To the front of the mounting groove provided and located on the front side, the cylinder bottom of the third hydraulic cylinder is hinged on the upper side of the hinged support, the piston rod of the third hydraulic cylinder protrudes forward and downward, and the front end of the piston rod of the third hydraulic cylinder Hinged to the middle part of the rear side of the vertical support plate, the fourth link is hinged on the lower side of the middle part of the back side of the vertical support plate, the fourth link is arranged inclined backward, and the rear side of the fourth link is connected to the hinged support Two parallel fifth connecting rods are hinged between the undersides of the bottom, and the front side of the vertical support plate is a rough surface.

A working method of a tight rock geological exploration sampling drilling system, specifically comprising the following steps:

(1) Drive the truck to drive the whole system to the designated operation position, adjust the drilling guide pipe assembly and fix it with the carriage floor to prepare for the next drilling operation;

(2) Place the ordinary drill bit in the center hole of the electric slips, and buckle each drill pipe one by one through the top drive and the electric slips to perform drilling operations on the formation until the depth of the tight rock formation is drilled, and then through The top drive and the electric slips shackle each drill pipe one by one, hoist each drill pipe back to the first fixed frame, and remove the ordinary drill bit;

(3) Make up each formation well casing one by one through the top drive and electric slips, connect each formation well casing into the drilling well, and fix the drilling well wall to prevent subsidence;

(4) Remove the electric slips, put the special drill bit for geological coring into the center of the upper port of the well, and fix the upper ends of the four high-pressure water inlet pipe connectors to the lower end of the high-pressure water inlet pipe through the five-way pipe , the upper end of the sewage pipe connector is fixedly connected to the lower end of the sewage pipeline, and the special drill bit for geological coring is lowered into the bottom of the well through the high-pressure water inlet pipeline and sewage pipeline, and the compact rock is crushed and sampled. After the sampling is completed, Rewind the high-pressure water inlet pipeline and sewage pipeline, lift the special drill bit for geological coring out of the well, and take out the sample;

(5) Break out each formation well casing one by one by top drive and electric slips, and hoist each formation well casing back to the second fixed frame.

Step (1) is as follows: drive the truck to drive the whole system to the designated working position, wherein, initially, the two sliding supports are close to the round hole, the upper end of the second guide tube is at the highest position, and the two limit guide rods are at the At the top of the corresponding guide long hole, the piston rods of the two first hydraulic cylinders are all in the extended state, and each second connecting rod and each third connecting rod are close to the second guide pipe, that is, the drilling guide pipe fixing frame As the umbrella skeleton is in the shrinking state, start the two first hydraulic cylinders, the piston rods of the two first hydraulic cylinders will shrink upwards synchronously and drive the second annular support to move upward along the outer circumference of the second guide tube, and each root will The second connecting rod and each third connecting rod are away from the second guide pipe, so that the drilling guide pipe fixing frame is opened like an umbrella frame, and then two horizontal servo gear motors are started to drive the corresponding horizontal screw rods to rotate respectively. The horizontal screw drives the front sliding support to move forward, and the rear horizontal screw drives the rear sliding support to move backward, so that the lower ends of the two first connecting rods move away from the round hole with the corresponding sliding support. , and then the upper ends of the two first connecting rods will drive the second guide pipe to move downward, and the two limit guide rods are located at the bottom of the corresponding long guide holes. Contact, the lower surface of each anchor bolt fixing seat is pressed tightly on the upper surface of the carriage floor, and each anchor bolt fixing seat is fixed and installed on the carriage floor through several anchor bolts, so that the preparation for the next drilling operation is completed Work.

Step (2) is specifically: clamp and fix the ordinary drill bit in the center hole of the electric slip, drive the corresponding driving gear synchronously to rotate through four vertical servo reduction motors, the two driving gears on the left and the teeth on the left The two driving gears on the right are connected with the rack on the left, so that the horizontal sliding plate moves back and forth on the two first horizontal guide rails, and when the horizontal sliding plate moves forward to the top of each drill pipe Stop, the cable winding motor drives the cable reel to rotate to unwind the cable, so that the top drive goes down to the top of the first drill pipe, the top drive is stuck and hugs the top of the first drill pipe, and the cable winding motor drives the cable The reel rotates reversely to take up the cable, the top drive lifts the first drill pipe, and the four vertical servo gear motors reverse synchronously, thereby driving the horizontal sliding plate to move in reverse to directly above the second guide pipe, and then, The cable winding motor drives the cable reel to rotate to unwind the cable, then the top drive drives the first drill pipe to drop into the second guide pipe until the lower end of the first drill pipe falls to the lower end of the first guide pipe, and the top drive With the function of the electric slips, the lower end of the first drill pipe is hooked up with the upper end of the ordinary drill bit, the slip drive motor is started, and the slip drive motor drives the electric slips to hold the first drill pipe tightly and rotate, and drives the first drill pipe The drill pipe moves downward step by step, so that the ordinary drill bit can perform drilling operations on the stratum. The whole connected drill pipe is hoisted by driving, the electric slips clamp the second upper drill pipe, and the first upper drill pipe and the second upper drill pipe are released by the top drive, and the first upper drill pipe is released. Drilling rod hangs back on the first fixed frame, like this, breaks out each drilling rod one by one, makes each drilling rod hang back on the first fixed frame, takes off common drill bit.

Step (3) is specifically as follows: drive the horizontal sliding plate to move backward on the two first horizontal guide rails to directly above the casings of each formation well through four vertical servo reduction motors, and the cable winding motor drives the cable reel to rotate Carry out cable laying until the top drive goes down to the top of the first formation well casing, the top drive is stuck and tightly hugs the top of the first formation well casing, and the cable winding motor drives the cable reel to reversely rotate for retraction. The first formation well casing is hoisted by the top drive, and the four vertical servo gear motors are reversed synchronously, thereby driving the horizontal sliding plate to move in reverse to directly above the second guide pipe, and then the cable winding motor drives When the cable reel rotates to unwind the cable, the top drive drives the first formation well casing down into the second guide pipe until the lower end of the first formation well casing falls through the lower end of the first guide pipe and is inserted into the In the center hole of the electric slips, the electric slips clamp the first formation well casing, and then, the cable winding motor drives the cable reel to reversely rotate to wind up the cable, and the top drive is lifted out of the second guide pipe, and the four A vertical servo deceleration motor drives the horizontal sliding plate to move backward again to the top of each formation well casing, and the cable winding motor drives the cable reel to rotate to unwind the cable, so that the top drive goes down to the second formation well casing Right above the top drive, the top drive clamps the top of the second formation well casing, the cable winding motor drives the cable reel to reversely rotate to wind up the cable, the top drive hoists the second formation well casing, and the four The two vertical servo reduction motors are reversed synchronously, so that the horizontal sliding plate is reversed to move directly above the second guide pipe, and then the cable winding motor drives the cable reel to rotate to unwind the cable, and the top drive drives the second formation The well casing falls into the second guide pipe until the lower end of the second formation well casing falls to the lower end of the first guide pipe and docks with the upper end of the first formation well casing. The function realizes the lower end of the second formation well casing and the upper end of the first formation well casing. In this way, each formation well casing is buckled one by one through the top drive and electric slips, and each formation well casing Docking is run into the drilling well, and the drilling well wall is fixed to prevent collapse.

Step (4) is as follows: remove the electric slips, put the special drill bit for geological coring into the center of the upper port of the well, and pass the upper ends of the four high-pressure water inlet pipe connectors through the connection between the five-way pipe and the high-pressure water inlet pipe. The lower end is fixedly connected, the upper end of the sewage pipe connector is fixedly connected with the lower end of the sewage pipeline, the high-pressure water inlet pipeline is unwound through the high-pressure water inlet pipe reel, the sewage discharge pipeline is unwound through the sewage pipe reel, and then passed through the high-pressure water inlet pipeline and sewage pipeline Lower the special drill bit for geological coring into the bottom of the drilling well, start the four third hydraulic cylinders on the excavation cylinder, and the piston rods of the four third hydraulic cylinders on the excavation cylinder will stretch out to fix and support the corresponding vertical support plate on the drilling surface. On the inner wall, so that the excavation cylinder is fixed in the drilling, and then the piston rods of the four second hydraulic cylinders are extended to push the crushing part and the cutting part downward for a certain distance, and then the four third cylinders on the crushing cylinder are activated. Hydraulic cylinder, the piston rods of the four third hydraulic cylinders on the crushing cylinder extend out to fix the corresponding vertical support plate on the inner wall of the drilling, so that the crushing cylinder is fixed in the drilling, and then the four cylinders on the excavation cylinder are The piston rod of the third hydraulic cylinder retracts and separates from the inner wall of the drilling well, and the excavation part is moved downward for a certain distance through the contraction of the piston rods of the four second hydraulic cylinders, and then the piston rods of the four third hydraulic cylinders on the excavation cylinder are stretched out Fix the corresponding vertical support plate on the inner wall of the drilling, fix the excavation cylinder in the drilling, withdraw the piston rods of the four third hydraulic cylinders on the crushing cylinder and separate them from the inner wall of the drilling, and then pass through the four second hydraulic The piston rod of the oil cylinder is stretched out to push the crushing part and the cutting part downward for a certain distance, and then the piston rods of the four third hydraulic cylinders on the crushing cylinder are stretched out to fix the corresponding vertical support plate on the inner wall of the drilling. So that the broken cylinder is fixed in the drilling, so, repeat the above operation, to realize the creeping advancement of the special drill bit for geological coring;

During the peristaltic advancement of the special drill bit for geological coring, start the high-pressure water supply pump and the sewage pump, and the high-pressure water supply pump sends the water in the water supply tank to the high-pressure water in the excavation part High-pressure water is injected into the water supply ring cavity, and then enters the four high-pressure water jets through four high-pressure hoses, and the high-pressure water is sprayed into the scour ring cavity through four high-pressure water jet holes and impacts the upper side of the diversion cylinder. The rotating blades on the circumference drive the diversion cylinder to rotate at high speed, and the diversion cylinder drives the cutting part to rotate as a whole. The high-pressure water in the flushing ring cavity is accelerated by the rotation of the spiral guide vanes and rushes down into each high-pressure water spray channel. The high-pressure water then enters the high-pressure water spray ring cavity through each high-pressure water spray channel, and finally, the high-pressure water is sprayed out through each high-pressure nozzle, and part of the high-pressure water impacts each driving impeller to drive each cutting wheel to rotate at a high speed, and part of the high-pressure water impacts when needed On the mined tight rock, the crushing operation is carried out. At the same time, each cutting wheel rotates to cut and break the tight rock. Due to the small space at the bottom of the drilling well, the high-pressure water will reversely gather in the conical slag collecting bucket and flow back upward, so that the tight rock slag will be sent to into the conical slag-accumulating hopper, and enter the crushing channel through the slag discharge hole, slag discharge channel, coring channel and cutting channel upwards, and further cut and crushed under the action of the high-speed rotating helical cutting blade, and at the same time, it is in contact with the friction tube The long friction groove of the wall is used for friction and crushing, and then enters the sewage pipe through the bellows, and then discharges the excavation cylinder through the sewage pipe and discharges to the ground through the sewage pipe joint and sewage pipeline, and finally enters the sewage tank through the sewage pump and return pipe. Initially, the two baffles are located at the eccentric position, and the coring channel and the cutting channel are both opened;

When reaching a specified position, start the waterproof motor on the upper side, turn the baffle plate on the upper side to the center to block the lower port of the cutting channel, then the broken compact rock sample enters the coring channel, and then start the lower side baffle Waterproof motor, turn the baffle plate on the lower side to the center to block the lower port of the coring channel, so that the sampling is completed, the high-pressure water inlet pipeline and the sewage pipeline are retracted upward synchronously, and the multi-functional tight rock geological exploration drill bit is removed from the Drilling was raised and samples were taken.

Compared with the prior art, the present invention has outstanding substantive features and remarkable progress. Specifically, the used devices and equipment for the whole operation of the present invention are all realized on a movable truck, which has complete mobility, and the coring operation process is not easy. It is fast and accurate, and provides a new idea and device for geological exploration sampling.

Description of drawings

Fig. 1 is a structural schematic diagram 1 of the present invention.

Fig. 2 is a schematic diagram of the second structure of the present invention.

Fig. 3 is a partial structural schematic diagram of the present invention.

Fig. 4 is an axonometric view of the special drill bit for geological coring of the present invention.

Fig. 5 is a front view of the special drill bit for geological coring of the present invention.

Fig. 6 is a cross-sectional view of the special drill bit for geological coring of the present invention.

Fig. 7 is a structural schematic diagram of the crushing part of the special drill bit for geological coring according to the present invention.

Fig. 8 is an axonometric view of the cutting part of the special drill bit for geological coring of the present invention after removing the slag discharge seat, the cutting flange seat and each cutting wheel.

Fig. 9 is an axonometric view 1 of the cutting part of the special drill bit for geological coring of the present invention after removing the cutting flange seat and each cutting wheel.

Fig. 10 is the second axonometric view of the cutting part of the special drill bit for geological coring of the present invention after removing the cutting flange seat and each cutting wheel.

Fig. 11 is a cross-sectional view of the cutting part of the special drill bit for geological coring of the present invention after the cutting flange seat and each cutting wheel are removed.

Detailed ways

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 11, the tight rock geological exploration and sampling drilling system includes trucks, ordinary drill bits 1, special drill bits for geological coring 2, electric slips 3, slip drive motors 4, gantry cranes, drilling guide pipe components, Top drive 5, water supply device and sewage device, the truck includes a front 6 and a vehicle body, with the front 6 facing forward, the vehicle body is provided with a compartment floor 7, the common drill bit 1 and the special drill bit 2 for geological coring are placed on the compartment floor 7, The middle part of the carriage floor 7 is provided with a circular hole 8 that is transparent up and down. The electric slip 3 is fixedly installed in the middle of the lower surface of the carriage floor 7 and is located directly below the round hole 8. The slip drive motor 4 is fixedly installed on the bottom of the carriage floor 7. The middle part on the left side of the lower surface is driven and connected to the electric slip 3. The gantry crane device is fixedly installed on the carriage floor 7 along the front and rear directions. It is fixedly connected with the upper end of the top drive 5, and the water supply device and the sewage discharge device are both arranged on the carriage floor 7. The front side of the carriage floor 7 is fixedly installed with a first fixed frame 9, and several drill pipes are placed on the first fixed frame 9. 10. A second fixed frame 11 is fixedly installed on the rear side of the carriage floor 7, and several formation well casings 12 are placed on the second fixed frame 11.

The gantry crane device comprises a horizontal frame, a horizontal sliding plate 13, a cable reel 14 and a cable winding motor 15, the horizontal frame is made up of two first horizontal guide rails 16 and two first vertical support plates 17, and the two first horizontal guide rails The length direction of 16 is arranged horizontally along the front-to-back direction, two first horizontal guide rails 16 are arranged side by side, two first vertical support plates 17 are all vertically arranged along the left-right direction, and two first vertical support plates 17 are arranged side by side The first vertical support plate 17 on the front side is fixedly connected to the front ends of the two first horizontal guide rails 16, and the first vertical support plate 17 on the rear side is fixedly connected to the rear ends of the two first horizontal guide rails 16. Four vertical columns 18 are fixedly connected to the bottom plate 7, and the vertical projections of the four vertical columns 18 are located at the four corners of the rectangle. The bottom of the first horizontal guide rail 16 on the left is fixedly connected to the two vertical columns 18 on the left. Top, the bottom of the first horizontal guide rail 16 on the right side is fixedly connected to the two vertical columns 18 tops on the right side, the bottom of the horizontal sliding plate 13 is slidably connected on the two first horizontal guide rails 16, and the middle part of the horizontal sliding plate 13 is opened There are up and down transparent long holes for threading the rope (not shown), the middle part of the horizontal sliding plate 13 is fixedly installed with a reel support 19 directly above the long hole for threading the rope, and the cable reel 14 is rotatably mounted on the reel support 19, The cable winding motor 15 is fixedly mounted on the right middle part of the horizontal sliding plate 13, the central axis of the cable reel 14 and the power shaft of the cable winding motor 15 are all arranged horizontally along the left and right directions, and the left end of the power shaft of the cable winding motor 15 is driven Connect the right end of the central axis of the cable reel 14, the cable reel 14 is wound with a coiled cable (not shown in the figure), the protruding end of the cable passes downward through the long hole for threading the rope and is fixedly connected with the upper end of the top drive 5, Two racks 20 are fixedly connected between the two first vertical support plates 17, and the two racks 20 are arranged symmetrically. At the bottom right of the guide rail on the right side, a vertical servo reduction motor 21 is fixedly installed around the horizontal sliding plate 13, and the lower end of the power shaft of the vertical servo reduction motor 21 passes through the horizontal sliding plate 13 and is fixedly installed with a driving gear 22. , the two driving gears 22 on the left are in transmission connection with the left rack 20, and the two driving gears 22 on the right are in transmission connection with the left rack 20;

The rear side of the first vertical support plate 17 on the front side, the front side of the first vertical support plate 17 on the rear side, and the upper surface of the horizontal sliding plate 13 are all fixedly equipped with a pipeline guide wheel set seat at the front middle part and the rear side middle part of the upper surface. The pipeline guide wheel group seat installed on the front side of the first vertical support plate 17 on the front side comprises a door-shaped support plate 23 and two guide wheels 24. The upper side, the lower side and the front side of the door-shaped support plate 23 All openings, the left and right sides of the door-shaped support plate 23 are fixedly connected to the rear side of the first vertical support plate 17 on the rear side, and the two guide wheels 24 are arranged side by side and the central axis is horizontally arranged along the left and right directions. The left and right ends of the central shaft of two guide wheels 24 are respectively rotated and installed on the left and right side plates of the door-shaped support plate 23.

The drilling guide tube assembly includes a first guide tube 25 and a second guide tube 26, the centerlines of the first guide tube 25, the second guide tube 26 and the circular hole 8 coincide, and the lower end of the first guide tube 25 is arranged at the center of the circular hole 8 The center is connected up and down with the center hole of the electric slip 3, and the outer circumference of the lower end of the first guide tube 25 is fixedly connected with four connecting rods 27 arranged in a circular array. The connecting rods 27 are arranged radially along the first guide tube 25, The outer ends of four connecting rods 27 are all fixedly connected on the inner circle of the circular hole 8, the outer diameter of the second guide tube 26 is the same as the inner diameter of the first guide tube 25, and the second guide tube 26 is inserted into the first guide tube. 25, the upper side of the second guide tube 26 stretches out the upper end of the first guide tube 25, and the left side wall and the right side wall of the first guide tube 25 are all provided with guide long holes 28 vertically, and the second guide tube The lower side of the left side wall and the lower side of the right side wall of 26 are all fixedly connected with a limit guide rod 29 arranged horizontally along the left and right directions, and the limit guide rod 29 on the left side is correspondingly inserted into the guide length on the left side. hole 28 and is slidably connected with the guide long hole 28 on the left side, and the limit guide rod 29 on the right side is correspondingly inserted in the guide long hole 28 on the right side and is slidably connected with the guide long hole 28 on the right side. 7 is fixedly installed with two sets of connecting rod driving devices for driving the second guide pipe 26 to move up and down;

The two groups of connecting rod driving devices have the same structure and are symmetrically arranged front and rear with respect to the first guide tube 25. The connecting rod driving device on the rear side includes a horizontal servo reduction motor 30, a horizontal lead screw 31, a sliding support 32 and a first connecting rod 33. The servo reduction motor 30 and the horizontal lead screw 31 are all arranged horizontally along the front-to-back direction, and two second horizontal guide rails positioned between the round hole 8 and the rear side of the car floor 7 are fixedly installed on the carriage floor 7 along the front-to-rear direction. The two horizontal guide rails are arranged side by side. The horizontal lead screw 31 is located in the middle of the two second horizontal guide rails. The straight support plate 34 is vertically arranged along the left and right directions, and the horizontal servo reduction motor 30 is fixedly installed on the rear side of the second vertical support plate 34 on the rear side, and the front end of the power shaft of the horizontal servo reduction motor 30 passes through the second vertical support on the rear side. Plate 34 is also drive-connected to the rear end of horizontal lead screw 31, and the front end of horizontal lead screw is rotated and installed on the second vertical support plate 34 on the front side, and the middle part of sliding support 32 is screwed on the horizontal lead screw, and the sliding support The left and right sides of the bottom of the seat 32 are respectively slidably connected to two second horizontal guide rails, and the first connecting rod 33 is arranged with a high front and a low rear, and the lower end of the first connecting rod 33 is hinged on the sliding support 32. The upper end of 33 is hinged on the upper side of the rear side wall of the second guide pipe 26, and the upper and lower hinge shafts of the first connecting rod 33 are horizontally arranged along the left and right directions;

The outer circle of the upper end of the second guide tube 26 is fixedly connected with the first annular support 35, and the outer circumference of the upper side of the second guide tube 26 is slidably connected with a ring located directly below the first annular support 35 and sleeved on the second The second annular bearing 36 on the two guide pipes 26, two first hydraulic cylinders 37 are hinged between the first annular bearing 35 and the second annular bearing 36, and the two first hydraulic cylinders 37 is symmetrically arranged on the front side and the rear side of the second guide tube 26, and there are several second connecting rods 38 arranged in a circular array around the second guiding tube 26, and the upper ends of the second connecting rods 38 are hinged on the first circle. On the annular support 35, the lower end of the second connecting rod 38 is fixedly equipped with an anchor bolt fixing seat 39, and the upper side of each second connecting rod 38 is hinged with a third connecting rod 40, and each third connecting rod The lower end of 40 is all hinged on the second annular bearing 36, and the upper end hinge shaft of the second connecting rod 38, the upper end hinge shaft and the lower end hinge shaft of the third connecting rod 40 are all horizontally arranged and connected with the second connecting rod 38 The length direction is vertical, and the first annular support 35, each second connecting rod 38, each third connecting rod 40 and the second annular support 36 form a drilling guide pipe fixing frame similar to an umbrella skeleton structure.

The water supply device includes a water supply tank 41, a high-pressure water supply pump 42, a high-pressure water inlet pipeline 43, and a high-pressure water inlet pipe reel 44. The reel 44 is rotatably mounted on the first fixed frame 11. The water outlet of the water supply tank 41 is connected to the central water inlet of the high-pressure water supply pipe 44 through the high-pressure water supply pipe 45. The high-pressure water supply pump 42 is installed on the high-pressure water supply pipe 45. The water inlet pipeline 43 is wound on the high-pressure water inlet pipe reel 44, and one end of the high-pressure water inlet pipeline 43 is connected with the water outlet of the high-pressure water inlet pipe reel 44, and the other end of the high-pressure water inlet pipeline 43 stretches out from the high-pressure water inlet pipe reel 44 and Pass vertically upwards between the two guide wheels 24 installed on the first vertical support plate 17 on the front side, and the other end of the high-pressure water inlet line 43 is bent horizontally and passes back through the upper surface of the horizontal sliding plate 13 In the middle of the two guide wheels 24 in the middle of the front side, the other end of the high-pressure water inlet pipeline 43 is bent downwards to pass through the horizontal slide plate 13 .

Sewage device comprises blowdown water tank 46, blowdown water pump 47, blowdown pipeline 48 and blowdown pipe reel 49, and blowdown water tank 46 and blowdown water pump 47 are all fixedly installed on the rear side left side part of compartment floor 7, and blowdown pipe reel 49 is rotatably installed on On the second fixed frame 9, the water inlet of the waste water tank 46 is connected to the central water outlet of the sewage pipe reel 49 through the return pipe 50, the sewage pump 47 is installed on the return pipe 50, and the sewage pipeline 48 is wound on the sewage pipe reel 49 One end of the sewage pipeline 48 is connected to the water inlet of the sewage pipe reel 49, and the other end of the sewage pipeline 48 stretches out from the sewage pipe reel 49 and passes vertically upwards through the first vertical support plate 17 installed on the rear side. In the middle of two guide wheels 24, the other end of the sewage pipeline 48 is bent horizontally forward and passes through the middle of the two guide wheels 24 installed in the middle of the upper surface rear side of the horizontal sliding plate 13, and the other end of the sewage pipeline 48 is folded down again. Bend through the horizontal sliding plate 13.

The special drill bit 2 for geological coring includes an excavation part, a crushing part and a cutting part, and the excavation part, the crushing part and the cutting part are connected sequentially from top to bottom, and the top of the excavation part is provided with a high-pressure water inlet pipe connector 51 and a sewage discharge pipe connector 52, The bottom of the excavation part is movably connected with the top of the crushing part, and the top of the cutting part is rotatably connected with the bottom of the crushing part. The excavation part is provided with a high-pressure water supply ring chamber 53 and a sewage channel 54. The lower end of the high-pressure water inlet pipe connector 51 is connected to the high-pressure water supply ring. The cavity 53 is connected, the lower end of the sewage pipe connector 52 is connected with the sewage channel 54, a flushing ring cavity 55 is arranged in the crushing part, and a crushing channel 56 connected with the sewage channel 54 is arranged inside the flushing ring cavity 55, and the high-pressure water supply ring cavity 53 passes through several A high-pressure hose 57 communicates with the flushing ring cavity 55. The cutting part is provided with a cutting channel 58 that is transparent up and down and docked with the crushing channel 56. There are several high-pressure water spray channels 59 that are transparent up and down on the cutting part. The upper port of the water channel 59 communicates with the flushing ring cavity 55, and the cutting part is provided with a high-pressure water spraying ring cavity 60 docked with the lower port of each high-pressure water spraying channel 59, and the bottom of the cutting part is provided with several cutting wheels in a circular array. 61, the bottom of the cutting part is equipped with several high-pressure nozzles 62 docked with the high-pressure water spray ring cavity 60, and the nozzles of each high-pressure nozzle 62 are respectively set towards each cutting wheel 61, the outer circumference of the excavation part and the outer circumference of the crushing part There are several support mechanisms that are in tight contact with the well wall along the circumferential array;

The excavation part includes an excavation cylinder 63, the top and bottom of the excavation cylinder 63 are open, the top of the excavation cylinder 63 is fixedly connected with an upper flange end cover 64, and the bottom of the excavation cylinder 63 is fixedly connected with a lower flange end cover 65, the upper flange end cover 64 and the middle part of the lower flange end cover 65 are provided with up and down transparent drain holes 66, and a sewage discharge pipe 67 is fixedly connected between the upper flange end cover 64 and the lower flange end cover 65, The sewage discharge channel 54 is formed in the sewage discharge pipe 67, the upper port and the lower port of the sewage discharge pipe 67 are respectively connected with the upper sewage discharge hole 66 and the lower side sewage discharge hole 66, and the lower end of the sewage discharge pipe connector 52 is fixedly connected to the upper flange end. The middle part of the cover 64 is docked with the upper sewage discharge hole 66, and the high-pressure water supply ring cavity 53 is formed between the outer circle of the sewage pipeline 67 and the inner circle of the excavation cylinder 63. There are four high-pressure water inlet pipe connectors 51, Four high-pressure water inlet pipe connectors 51 are arranged in a circular array around the sewage pipe connector 52, and the lower ends of the four high-pressure water inlet pipe connectors 51 are fixedly installed on the upper flange end cover 64 and communicate with the high-pressure water supply ring chamber 53. The middle part of the flange end cover 65 is fixedly connected with a corrugated pipe 68, the upper port of the corrugated pipe 68 is docked with the lower drain hole 66, four high-pressure hoses 57 are provided, and the four high-pressure hoses 57 are arranged in a circular array on the bellows 68. Around the four high-pressure hoses 57, the upper ends of the four high-pressure hoses 57 are fixedly installed on the lower flange end cover 65 and communicate with the high-pressure water supply ring cavity 53, and the outer edge of the lower flange end cover 65 is fixedly installed with four second circular arrays. Hydraulic oil cylinder 69, the second hydraulic oil cylinder 69 is vertically arranged, the piston rod of the second hydraulic oil cylinder 69 extends out of the cylinder body downwards, and the top of the cylinder body of the second hydraulic oil cylinder 69 is hinged on the lower flange end cover 65;

The crushing part includes a crushing cylinder 70. The top and bottom of the crushing cylinder 70 are both open. The friction tube 71 is concentrically arranged in the crushing cylinder 70. The upper end of the friction tube 71 is integrated with the top of the crushing cylinder 70 and fixed. connection, the inner diameter of the friction circular tube 71 is the same as the inner diameter of the sewage hole 66, the outer diameter of the friction circular tube 71 is smaller than the inner diameter of the crushing cylinder 70, the lower end of the friction circular tube 71 is located at the lower side of the crushing cylinder 70, and the crushing cylinder 70 The inner top is equipped with a first thrust bearing 72 that is sleeved on the top outer circumference of the friction tube 71. The outer circle of the first thrust bearing 72 is in contact with the inner circle of the crushing cylinder 70, and the outer circumference of the friction tube 71 is sleeved with a A plurality of first water seals 73, a conductive slip ring 74 is fixedly set on the outer circumference of the lower side of the friction tube 71, a deep groove ball bearing 75 is set on the outer circumference of the bottom of the friction tube 71, and the bellows 68 The lower end is fixedly connected to the middle part of the upper surface of the crushing cylinder 70 and docked with the upper port of the friction tube 71. The lower ends of the piston rods of the four second hydraulic cylinders 69 are hinged on the outer edge of the upper surface of the crushing cylinder 70. Four high-pressure flexible The lower end of the pipe 57 is fixedly installed on the upper surface of the crushing cylinder 70, and the upper surface of the crushing cylinder 70 is provided with four high-pressure water jets, and the lower ends of the four high-pressure hoses 57 are respectively connected to the upper ends of the four high-pressure water jets. There are four high-pressure water flow perforations 76 around the upper side of the inner wall of the crushing cylinder 70. The lower ends of the four high-pressure water jets lead to the four high-pressure water flow perforations 76 respectively. The inner wall of the friction tube 71 is axially Long friction grooves 77 are evenly opened, the crushing channel 56 is formed inside the friction tube 71, and the bottom of the crushing cylinder 70 is integrally formed with a column 78;

The cutting part includes a cutting cylinder 79, the top and bottom of which are open, and the cutting channel 58 is formed inside the cutting cylinder 79, and the top of the cutting cylinder 79 is integrally formed with the center and fixedly connected with a guide cylinder 80, the top and the bottom of the diversion cylinder 80 are open, and the inner circle of the bottom of the diversion cylinder 80 is fixedly connected with a web support 81, and the concentric center of the diversion cylinder 80 is provided with a crushing shaft 82, and the center of the crushing shaft 82 The lower end is fixedly connected to the middle part of the web support 81, and the diversion cylinder 80 is plugged into the crushing cylinder 70 and sleeved on the outside of the friction tube 71. The outer circle of the diversion cylinder 80 and the inner circle of the crushing cylinder 70 The scour ring cavity 55 is formed between them, the crushing shaft 82 extends into the friction tube 71, the helical cutting blade 83 is integrally formed on the crushing shaft 82 along the axial direction, and the outer circumference of the guide cylinder 80 is integrally formed along the axial direction. A spiral guide vane 84 that is opposite to the spiral cutting blade 83 is formed. The outer circle of the upper side of the guide cylinder 80 is integrally formed with a plurality of rotating blades 85 arranged in a circular array. The outer circle of the upper end of the guide cylinder 80 An annular plate 86 is fixedly connected, and a second thrust bearing 87 is provided on the outer circumference of the top of the diversion cylinder 80. The outer circle of the second thrust bearing 87 is in contact with the inner circle of the crushing cylinder 70. The surface is in tight contact with the lower surface of the annular plate 86, and the inner edge of the upper surface of the annular plate 86 is in pressure contact with the outer edge of the lower surface of the first thrust bearing 72. Each of the first water seal 73, conductive slip ring 74 and deep groove ball The bearings 75 are all embedded between the diversion cylinder 80 and the friction tube 71, the injection directions of the four high-pressure water jet holes 76 are respectively set towards the respective rotating blades 85, and the top of the cutting cylinder 79 is provided with a top along the circumferential direction. The open rotating ring groove 88, the pipe string 78 is installed in the rotating ring groove 88 for corresponding rotation, and the second water seal 89 sleeved on the outer circumference of the pipe string 78 is arranged in the rotating ring groove 88;

The bottom of the cutting cylinder 79 is fixedly equipped with a coring seat 90, and the middle part of the coring seat 90 is provided with a coring channel 91 that is transparent up and down and docked with the cutting channel 58. The bottom of the coring seat 90 is fixedly connected with a slag discharge seat 92 , the middle part of the slag discharge seat 92 is provided with a slag discharge channel 93 that is transparent up and down and docked with the slag discharge channel. The eccentric portion of the cutting cylinder 79 and the bottom of the coring seat 90 are provided with an arc-shaped placement groove 94, the arc-shaped placement groove 94 on the upper side is connected with the lower port of the cutting passage 58, and the arc-shaped placement groove 94 on the lower side Correspondingly connected with the lower port of the coring passage 91, a waterproof motor 95 is installed on the lower port inner wall side of the cutting passage 58 and the lower port inner wall side of the coring passage 91, and the waterproof motor 95 is vertically arranged. Two waterproof motors 95 The upper ends of the power shafts are fixedly connected with baffles 96, and the upper baffles 96 slide correspondingly in the upper arc-shaped placement groove 94 and are used to block the lower port of the cutting channel 58, and the lower baffles 96 slide correspondingly in the lower The arc-shaped placement groove 94 on the side is used to block the lower port of the coring channel 91. The two waterproof motors 95 are connected to the conductive slip ring 74 through waterproof cables (not shown), and the middle part of the slag discharge seat 92 is provided with a ring Groove 97, the bottom of slag discharge seat 92 is fixedly equipped with cutting flange seat 98, and the middle part of cutting flange seat 98 is provided with the slag discharge hole 99 that is transparent up and down and docked with slag discharge passage 93, and the cutting flange seat 98 The high-pressure water spray ring cavity 60 is formed between the top and the annular groove 97, and the bottom of the cutting flange seat 98 is fixedly connected with a conical slag collecting hopper 100 with a small upper part and a larger lower part. The upper port of the slag collecting hopper 100 is Docked with the slag discharge hole 99, the bottom outer edge of the cutting flange seat 98 is provided with several pillars 101 in a circumferential array, and each cutting wheel 61 rotates on each pillar 101 correspondingly, and the central axis of each cutting wheel 61 is along the cutting method. The radial setting of the orchid seat 98, the cutting surface of each cutting wheel 61 is all set towards the center of the cutting flange seat 98, and the inner end of the center axis of each cutting wheel 61 is fixedly equipped with a driving impeller 102, and each high-pressure nozzle 62 is Fixedly installed on the cutting flange seat 98, the nozzles of each high-pressure nozzle 62 are respectively set downwards towards the upper side of each driving impeller 102;

Both the outer circumference of the excavation cylinder 63 and the outer circumference of the crushing cylinder 70 are provided with four installation grooves 103 arranged in a circular array. The above-mentioned supporting mechanism is installed in each of them. The supporting mechanism on the front side includes a hinged support 104, a vertical support plate 105 and a third hydraulic cylinder 106. The hinged support 104 is fixedly installed in the installation groove on the front side by several screws 107. 103 at the bottom, the vertical support plate 105 is vertically arranged along the left and right direction and is located in front of the mounting groove 103 on the front side, the cylinder bottom of the third hydraulic cylinder 106 is hinged on the upper side of the hinged support 104, the third hydraulic cylinder 106 The piston rod stretches out forward and downward, and the front end of the piston rod of the third hydraulic oil cylinder 106 is hinged on the rear side middle part of the vertical support pressing plate 105, and the rear side middle part of the vertical support pressing plate 105 is hinged with a fourth connecting rod 108, The connecting rod 108 is inclined backward and arranged, and two parallel fifth connecting rods 109 are hinged between the rear side of the fourth connecting rod 108 and the lower side of the hinged support 104, and the front side of the vertical support plate 105 is rough surface.

A working method of a tight rock geological exploration sampling drilling system, specifically comprising the following steps:

(1) Drive the truck to drive the whole system to the designated operation position, adjust the drilling guide pipe assembly and fix it with the carriage floor 7 to prepare for the next drilling operation;

(2) Place the ordinary drill bit 1 in the center hole of the electric slip 3, and buckle each drill pipe 10 one by one through the top drive 5 and the electric slip 3, and perform drilling operations on the formation until the tight rock formation is drilled depth, and then through the top drive 5 and electric slips 3 to break out each drill pipe 10 one by one, and hang each drill pipe 10 back to the first fixed frame 9, and remove the ordinary drill bit 1;

(3) Make up each formation well casing 12 one by one through the top drive 5 and electric slips 3 , connect each formation well casing 12 into the drilling well, fix the drilling well wall and prevent subsidence;

(4) Disassemble the electric slips 3, put the special drill bit 2 for geological coring into the center of the upper port of the well, and pass the upper ends of the four high-pressure water inlet pipe connectors 51 through the five-way pipe and the high-pressure water inlet pipeline 43 The lower end of the sewage pipe connector 52 is fixedly connected to the lower end of the sewage pipeline 48, and the special drill bit 2 for geological coring is lowered into the bottom of the drilling through the high-pressure water inlet pipeline 43 and the sewage pipeline 48, and the compact rock is crushed. And carry out the sampling operation. After the sampling is completed, the high-pressure water inlet pipeline 43 and the sewage pipeline 48 are rewound, and the special drill bit 2 for geological coring is put out from the drilling, and the sample is taken out;

(5) Break out each formation well casing 12 one by one through the top drive 5 and electric slips 3 , and hoist each formation well casing 12 back to the second fixed frame 11 .

Step (1) is specifically: drive the truck to drive the whole system to the designated operating position, wherein, initially, the two sliding supports 32 are close to the round hole 8, the upper end of the second guide pipe 26 is at the highest position, and the two limiters The guide rod 29 is located at the top of the corresponding guide long hole 28, the piston rods of the two first hydraulic cylinders 37 are all in an extended state, and each second connecting rod 38 and each third connecting rod 40 are all close to the second guiding rod. The pipe 26, that is, the drilling guide pipe fixing frame is in a shrinking state like an umbrella skeleton, and the two first hydraulic cylinders 37 are activated, and the piston rods of the two first hydraulic cylinders 37 shrink upward synchronously and drive the second annular support 36 along the first The outer circumference of the two guide pipes 26 moves up, and then each second connecting rod 38 and each third connecting rod 40 are just far away from the second guide pipe 26, so that the drilling guide pipe fixing frame is opened like an umbrella skeleton, and then the two connecting rods are started. The horizontal servo deceleration motor 30 respectively drives the corresponding horizontal screw to rotate, the front horizontal screw drives the front sliding support 32 to move forward, and the rear horizontal screw 31 drives the rear sliding support 32 to move backward , and then make the lower ends of the two first connecting rods 33 move away from the round hole 8 along with the corresponding sliding bearings 32, and then the upper ends of the two first connecting rods 33 will drive the second guide tube 26 to move downward, and the two limit The guide rods 29 are located at the bottom of the corresponding long guide holes 28. At this time, the lower ends of the second connecting rods 38 are in contact with the compartment floor 7, and the lower surfaces of each anchor bolt holder 39 are pressed against the compartment floor 7 upper surface. Each anchor bolt holder 39 is fixedly installed on the carriage floor 7 respectively by several anchor bolts, so that the preparatory work for the next drilling operation is completed.

Step (2) is as follows: fasten and fix the ordinary drill bit 1 in the center hole of the electric slip 3, drive the corresponding driving gear 22 to rotate synchronously through four vertical servo reduction motors 21, and the two driving gears 22 on the left side It is transmission connected with the rack 20 on the left side, and the two driving gears 22 on the right side are transmission connected with the rack 20 on the left side, so that the horizontal sliding plate 13 can move back and forth on the two first horizontal guide rails 16, and the horizontal sliding plate 13 moves forward and stops when it reaches the top of each drill pipe 10, and the cable winding motor 15 drives the cable reel 14 to rotate to unwind the cable, so that the top drive 5 is lowered to the top of the first drill pipe 10, and the top drive 5 stops. Hold the top of the first drill pipe 10 tightly, the cable winding motor 15 drives the cable reel 14 to reversely rotate to wind up the cable, the top drive 5 lifts the first drill pipe 10, and the four vertical servo reduction motors 21 Reverse synchronously, thereby driving the horizontal sliding plate 13 to move in reverse to directly above the second guide tube 26, then, the cable winding motor 15 drives the cable reel 14 to rotate to unwind the cable, and the top drive 5 drives the first drill pipe 10 falls into the second guide pipe 26 until the lower end of the first drill pipe 10 falls to the lower end of the first guide pipe 25, and the lower end of the first drill pipe 10 is connected to the The upper end of the ordinary drill bit 1 is hooked up, and the slip drive motor 4 is started, and the slip drive motor 4 drives the electric slip 3 to hold the first drill pipe 10 to rotate, and drives the first drill pipe 10 to move downward step by step, so that the ordinary The drill bit 1 performs drilling operations on the formation. During the drilling operation, each drill pipe 10 is made up one by one by the top drive 5 using the above operation until the ordinary drill bit 1 penetrates to the depth of the tight rock formation, and the entire drill pipe is hoisted by the top drive 5. The drill pipes 10 connected together, the electric slips 3 clamp the upper second drill pipe 10, the upper first drill pipe 10 and the upper second drill pipe 10 are released by the top drive 5, and the upper second A drilling rod 10 is hung back on the first fixed frame 9, so each drilling rod 10 is shackled one by one, each drilling rod 10 is hung back on the first fixed frame 9, and the common drill bit 1 is taken off.

Step (3) is specifically as follows: four vertical servo reduction motors 21 drive the horizontal sliding plate 13 to move backward on the two first horizontal guide rails 16 to directly above each formation well casing 12, and the cable winding motor 15 Drive the cable reel 14 to rotate to unwind the cable, so that the top drive 5 is lowered to the top of the first formation well casing 12, the top drive 5 is stuck and hugs the top of the first formation well casing 12, and the cable is wound The motor 15 drives the cable reel 14 to rotate in reverse to take up the cable, the top drive 5 lifts the first formation well casing 12, and the four vertical servo reduction motors 21 reverse synchronously, thereby driving the horizontal sliding plate 13 to reverse Move to the top of the second guide pipe 26, then, the cable winding motor 15 drives the cable reel 14 to rotate to unwind the cable, then the top drive 5 drives the first formation well casing 12 to fall into the second guide pipe 26 until The lower end of the first formation well casing 12 drops through the lower end of the first guide pipe 25 and is inserted into the central hole of the electric slip 3, and the electric slip 3 clamps the first formation well casing 12, and then, The cable winding motor 15 drives the cable reel 14 to reversely rotate to take up the cable, and the top drive 5 is lifted out of the second guide pipe 26, and the four vertical servo reduction motors 21 drive the horizontal sliding plate 13 to move backward to each root again. Directly above the formation well casing 12, the cable winding motor 15 drives the cable reel 14 to rotate to unwind the cable, so that the top drive 5 is lowered to directly above the second formation well casing 12, and the top drive 5 is stuck and held tightly On the top of the second formation well casing 12, the cable winding motor 15 drives the cable reel 14 to reversely rotate to wind up the cable. The top drive 5 lifts the second formation well casing 12. Four vertical servo reduction motors 21 is reversed synchronously again, thereby driving the horizontal sliding plate 13 to move in reverse to directly above the second guide pipe 26, then, the cable winding motor 15 drives the cable reel 14 to rotate to unwind the cable, then the top drive 5 drives the second formation The well casing 12 falls into the second guide pipe 26 until the lower end of the second formation well casing 12 falls to the lower end of the first guide pipe 25 and docks with the upper end of the first formation well casing 12, and the top drive 5 and the electric slips 3 realize the make-up of the lower end of the second formation well casing 12 and the upper end of the first formation well casing 12, so that each formation can be made up one by one through the top drive 5 and the electric slips 3 The well casing 12 is used to connect and lower each formation well casing 12 into the drilling, and fix the drilling well wall to prevent collapse.

Step (4) is specifically as follows: remove the electric slip 3, put the special drill bit 2 for geological coring into the center of the upper port of the well, and connect the upper ends of the four high-pressure water inlet pipe connectors 51 with the high-pressure inlet through the five-way pipe. The lower end of the water pipeline 43 is fixedly connected, the upper end of the sewage pipe connector 52 is fixedly connected with the lower end of the sewage pipeline 48, the high-pressure water inlet pipeline 43 is unwound through the high-pressure water inlet pipe reel 44, and the sewage discharge pipeline 48 is unwound through the sewage pipe reel 49 , and then through the high-pressure water inlet pipeline 43 and the sewage pipeline 48, the special drill bit 2 for geological coring is lowered into the bottom of the drilling well, the four third hydraulic cylinders 106 on the excavation cylinder 63 are started, and the four third hydraulic cylinders 106 on the excavation cylinder 63 are The piston rods of the oil cylinders 106 are stretched out to fix the corresponding vertical support plate 105 on the inner wall of the drilling, so that the excavation cylinder 63 is fixed in the drilling, and then the piston rods of the four second hydraulic cylinders 69 are stretched out to make the crushing part and the The cutting parts are pushed down for a certain distance together, and then the four third hydraulic cylinders 106 on the crushing cylinder 70 are started, and the piston rods of the four third hydraulic cylinders 106 on the crushing cylinder 70 stretch out to push the corresponding vertical support plate 105 It is fixedly supported on the inner wall of the drilling, so that the crushing cylinder 70 is fixed in the drilling, and then the piston rods of the four third hydraulic cylinders 106 on the excavation cylinder 63 are withdrawn and separated from the inner wall of the drilling. The piston rod shrinks to move the excavation part downward for a certain distance, and then the piston rods of the four third hydraulic cylinders 106 on the excavation cylinder 63 are stretched out to fix and support the corresponding vertical support plate 105 on the inner wall of the drilling, so that the excavation cylinder 63 is fixed in the drilling well, the piston rods of the four third hydraulic cylinders 106 on the crushing cylinder 70 are retracted and separated from the inner wall of the drilling well, and then the piston rods of the four second hydraulic cylinders 69 are extended to move the crushing part and the cutting part together Push down for a certain distance, and then extend the piston rods of the four third hydraulic cylinders 106 on the crushing cylinder 70 to fix the corresponding vertical support plate 105 on the inner wall of the drilling, so that the crushing cylinder 70 is fixed in the drilling, In this way, the above-mentioned operations are repeated to realize the creeping advancement of the special drill bit 2 for geological coring;

During the peristaltic advancement of the special drill bit 2 for geological coring, start the high-pressure water supply pump 42 and the sewage pump 47, and the high-pressure water supply pump 42 will pass the water in the water supply tank 41 through the high-pressure water supply pipe 45, the high-pressure water inlet pipeline 43 and four high-pressure water inlet pipes. The connector 51 injects high-pressure water into the high-pressure water supply ring chamber 53 in the excavation part, and then the high-pressure water enters the four high-pressure water jet channels through four high-pressure hoses 57, and the high-pressure water enters the flushing ring chamber through four high-pressure water jet holes 76 55 and impact the rotating blades 85 on the outer circumference of the upper side of the diversion cylinder 80, driving the diversion cylinder 80 to rotate at a high speed, the diversion cylinder 80 drives the cutting part to rotate as a whole, and the high-pressure water is flushed in the ring cavity 55 The spiral guide vane 84 rotates and accelerates to rush down into each high-pressure water spray channel 59, and then the high-pressure water enters the high-pressure water spray ring chamber 60 through each high-pressure water spray channel 59, and finally, the high-pressure water is sprayed through each high-pressure nozzle 62. Part of the high-pressure water impacts each driving impeller 102 to drive each cutting wheel 61 to rotate at a high speed, and part of the high-pressure water impacts on the tight rock to be mined to perform crushing operations. At the same time, each cutting wheel 61 rotates to cut and break the tight rock. Smaller, the high-pressure water will gather in the opposite direction to the conical slag collecting hopper 100 and flow back upwards, so that the dense rock slag will be sent into the conical slag collecting hopper 100, and pass upward through the slag discharge hole 99, slag discharge channel 93, and coring. The channel 91 and the cutting channel 58 enter the crushing channel 56, and are further cut and crushed under the action of the high-speed rotating helical cutting blade 83. At the same time, they are rubbed and crushed with the long friction groove 77 on the inner wall of the friction tube 71, and then enter through the bellows 68. Sewage pipe 67, then discharge the excavation barrel 63 through the sewage pipe 67 and discharge to the ground through the sewage pipe connector 52 and the sewage pipeline 48, and finally enter the sewage water tank 46 through the sewage pump 47 and the return pipe 50, wherein initially, two The baffle plate 96 is all located at the eccentric place, and the coring channel 91 and the cutting channel 58 are all opened;

When reaching a specified position, start the waterproof motor 95 on the upper side, turn the baffle plate 96 on the upper side to the lower port of the center to block the cutting channel 58, and then the broken compact rock sample enters the coring channel 91, and then Start the waterproof motor 95 on the lower side, rotate the baffle plate 96 on the lower side to the lower port of the core-taking channel 91 at the center, and thus complete the sampling, and retract the high-pressure water inlet pipeline 43 and the sewage pipeline 48 upwards synchronously. The multifunctional tight rock geological exploration drill bit is lifted out of the well to take out samples.

The above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand; the present invention can still be modified or equivalently replaced without departing from Any modifications or partial replacements within the spirit and scope of the present invention shall fall within the scope of the claims of the present invention.

Claims (9)

1. A tight rock geological exploration sampling drilling system is characterized in that: the drill comprises a truck, a common drill bit, a drill bit special for geological coring, an electric slip, a slip driving motor, a gantry crane device, a drilling guide pipe assembly, a top drive, a water supply device and a sewage discharge device, wherein the truck comprises a truck head and a truck body, the truck head is arranged in the front direction, a carriage bottom plate is arranged on the truck body, the common drill bit and the drill bit special for geological coring are both arranged on the carriage bottom plate, a vertically through round hole is formed in the middle of the carriage bottom plate, the electric slip is fixedly arranged in the middle of the lower surface of the carriage bottom plate and is positioned under the round hole, the slip driving motor is fixedly arranged in the middle of the left side of the lower surface of the carriage bottom plate and is connected with the electric slip in a driving manner, the gantry crane device is fixedly arranged on the middle of the front side of the carriage bottom plate and is fixedly arranged on the carriage bottom plate in the front-back direction, the drilling guide pipe assembly is arranged in the middle of the carriage bottom plate and is positioned under the gantry crane device, the lower end of a cable of the gantry crane device is fixedly connected with the upper end of the top drive, the water supply device and the carriage bottom plate, the front side of the carriage bottom plate is fixedly arranged on the carriage bottom plate, a first fixing frame is fixedly arranged on the front side of the carriage bottom plate, a plurality of which is arranged, a plurality of drill pipes are arranged on the second fixing frame, a plurality of stratum well casings;

the gantry crane device comprises a horizontal frame, a horizontal sliding plate, a cable reel and a cable winding motor, wherein the horizontal frame consists of two first horizontal guide rails and two first vertical support plates, the length directions of the two first horizontal guide rails are horizontally arranged along the front-back direction, the two first horizontal guide rails are arranged side by side left and right, the two first vertical support plates are vertically arranged along the left-right direction, the two first vertical support plates are arranged side by side front and back, the first vertical support plate at the front side is fixedly connected to the front ends of the two first horizontal guide rails, the first vertical support plate at the rear side is fixedly connected to the rear ends of the two first horizontal guide rails, four vertical stand columns are fixedly connected to a bottom plate of a carriage, the vertical projections of the four vertical stand columns are positioned at the four corners of a rectangle, the bottom of the first horizontal guide rail at the left side is fixedly connected to the tops of the two vertical stand columns at the left side, the bottom of the first horizontal guide rail at the right side is fixedly connected to the tops of the two vertical stand columns at the right side, the bottom of a horizontal sliding plate is slidably connected to two first horizontal guide rails, the middle part of the horizontal sliding plate is provided with a rope penetrating long hole which is through up and down, the middle part of the horizontal sliding plate is fixedly provided with a reel bracket which is positioned right above the rope penetrating long hole, a cable reel is rotatably arranged on the reel bracket, a cable winding motor is fixedly arranged in the middle part of the right side of the horizontal sliding plate, a central shaft of the cable reel and a power shaft of the cable winding motor are horizontally arranged along the left-right direction, the left end of the power shaft of the cable winding motor is connected with the right end of the central shaft of the cable reel in a transmission way, a coiled cable is wound on the cable reel, the extending end of the cable downwards penetrates through the rope penetrating long hole and is fixedly connected with the upper end of a top drive, two racks are fixedly connected between two first vertical support plates, the two racks are arranged in a bilateral symmetry way, and the rack on the left side is positioned on the left lower part of the left guide rail, the rack on the right side is positioned at the right lower part of the guide rail on the right side, a vertical servo gear motor is fixedly arranged on the periphery of the horizontal sliding plate respectively, the lower end of a power shaft of the vertical servo gear motor penetrates through the horizontal sliding plate downwards and is fixedly provided with driving gears, the two driving gears on the left side are in transmission connection with the rack on the left side, and the two driving gears on the right side are in transmission connection with the rack on the left side;

the first vertical extension board leading flank of front side, the first vertical extension board trailing flank of rear side, the equal fixed mounting in upper surface front side middle part and the rear side middle part of horizontal sliding plate has pipeline leading wheel group seat, the pipeline leading wheel group seat of installation on the first vertical extension board leading flank of front side includes door style of calligraphy extension board and two leading wheel constitutions, door style of calligraphy extension board upside, downside and front side are all uncovered, door style of calligraphy extension board left and right sides board front side fixed connection is on the first vertical extension board trailing flank of rear side, around two leading wheels side by side and the center pin is along left and right sides direction level setting, both ends rotate respectively and install on the left and right sides board of door style of calligraphy extension board about the center pin of two leading wheels.

2. The tight rock geological exploration sampling drilling system of claim 1, wherein: the drilling guide pipe assembly comprises a first guide pipe and a second guide pipe, the central lines of the first guide pipe, the second guide pipe and the round hole are overlapped, the lower end of the first guide pipe is arranged at the center of the round hole and is in up-and-down butt joint with a central hole of an electric slip, the outer circumference of the lower end of the first guide pipe is fixedly connected with four connecting rods arranged in a circumferential array, the connecting rods are arranged along the radial direction of the first guide pipe, the outer ends of the four connecting rods are fixedly connected on an inner circle of the round hole, the outer diameter of the second guide pipe is the same as the inner diameter of the first guide pipe, the second guide pipe is inserted into the first guide pipe, the upper side part of the second guide pipe extends out of the upper end of the first guide pipe, the left side wall and the right side wall of the first guide pipe are vertically provided with guide long holes, the lower side part of the left side wall and the lower side part of the right side wall of the second guide pipe are fixedly connected with a limit guide rod horizontally arranged along the left-and right direction, the left limit guide rod correspondingly penetrates through the left guide long holes and is in sliding connection with the left guide long holes, and the right guide pipe, and two sets of guide rod driving devices for driving the carriage to move up and down;

the two groups of connecting rod driving devices have the same structure and are symmetrically arranged in the front and back direction of the first guide pipe, the connecting rod driving device at the rear side comprises a horizontal servo speed reducing motor, a horizontal lead screw, a sliding support and a first connecting rod, the horizontal servo speed reducing motor and the horizontal lead screw are both horizontally arranged along the front and back direction, two second horizontal guide rails positioned between the round hole and the rear side edge of the carriage bottom plate are fixedly arranged on the carriage bottom plate along the front and back direction, the two second horizontal guide rails are arranged side by side at the left and right sides, the horizontal lead screw is positioned between the two second horizontal guide rails, the front side part and the rear side part of the two second horizontal guide rails are both fixedly connected with a second vertical support plate, and the second vertical support plate is vertically arranged along the left and right direction, the horizontal servo speed reducing motor is fixedly arranged on the rear side surface of the second vertical support plate on the rear side, the front end of a power shaft of the horizontal servo speed reducing motor penetrates through the second vertical support plate on the rear side and is in transmission connection with the rear end of the horizontal lead screw, the front end of the horizontal lead screw is rotatably arranged on the second vertical support plate on the front side, the middle part of the sliding support is in threaded connection with the horizontal lead screw, the left side and the right side of the bottom of the sliding support are respectively in sliding connection with two second horizontal guide rails, the first connecting rod is obliquely arranged in a high-front-rear-low manner, the lower end of the first connecting rod is hinged on the sliding support, the upper end of the first connecting rod is hinged on the upper side part of the rear side wall of the second guide pipe, and an upper end hinged shaft and a lower end hinged shaft of the first connecting rod are both horizontally arranged along the left-right direction;

the outer circle of the upper end of the second guide pipe is fixedly connected with a first annular support, the outer circumference of the upper side part of the second guide pipe is slidably connected with a second annular support which is positioned under the first annular support and sleeved on the second guide pipe, two first hydraulic cylinders are hinged between the first annular support and the second annular support, the two first hydraulic cylinders are symmetrically arranged on the front side and the rear side of the second guide pipe in a front-back mode, a plurality of second connecting rods arranged in a circumferential array mode are arranged around the second guide pipe, the upper end of each second connecting rod is hinged on the first annular support, the lower end of each second connecting rod is fixedly provided with a foundation bolt fixing seat, the upper side part of each second connecting rod is hinged with a third connecting rod, the lower end of each third connecting rod is hinged on the second annular support, the upper end of each second connecting rod is hinged with an articulated shaft, the upper end of each third connecting rod and the lower end of each third connecting rod are horizontally arranged and are perpendicular to the length direction of the second connecting rod, the first annular support, each second connecting rod, each annular third connecting rod and the second support form a drilling guide pipe fixing frame similar to the umbrella framework.

3. The tight rock geological exploration sampling drilling system of claim 2, wherein: the water supply device comprises a water supply tank, a high-pressure water supply pump, a high-pressure water inlet pipeline and a high-pressure water inlet pipe reel, wherein the water supply tank and the high-pressure water supply pump are fixedly arranged on the left side part of the front side of the carriage bottom plate;

the sewage discharging device comprises a sewage discharging box, a sewage discharging pump, a sewage discharging pipeline and a sewage discharging pipe reel, wherein the sewage discharging box and the sewage discharging pump are fixedly installed at the left side part of the rear side of the carriage bottom plate, the sewage discharging pipe reel is rotatably installed on the second fixing frame, a water inlet of the sewage discharging box is connected with a central water outlet of the sewage discharging pipe reel through a water return pipe, the sewage discharging pump is installed on the water return pipe, the sewage discharging pipeline is wound on the sewage discharging pipe reel, one end of the sewage discharging pipeline is connected with the water inlet of the sewage discharging pipe reel, the other end of the sewage discharging pipeline stretches out of the sewage discharging pipe reel and vertically upwards passes through two guide wheels installed on a first vertical support plate at the rear side, the other end of the sewage discharging pipeline is horizontally bent again and forwards passes through the middle two guide wheels installed at the middle part of the rear side of the upper surface of the horizontal sliding plate, and the other end of the sewage discharging pipeline is bent downwards to pass through the horizontal sliding plate.

4. The tight rock geological exploration sampling drilling system of claim 3, wherein: the geological coring special drill comprises a tunneling part, a crushing part and a cutting part, wherein the tunneling part, the crushing part and the cutting part are sequentially connected from top to bottom, the top of the tunneling part is provided with a high-pressure water inlet pipe connector and a blow-off pipe connector, the bottom of the tunneling part is movably connected with the top of the crushing part, the top of the cutting part is rotatably connected with the bottom of the crushing part, a high-pressure water supply annular cavity and a blow-off channel are arranged in the tunneling part, the lower end of the high-pressure water inlet pipe connector is communicated with the high-pressure water supply annular cavity, the lower end of the blow-off pipe connector is communicated with the blow-off channel, a scouring annular cavity is arranged in the crushing part, a crushing channel butted with the blow-off channel is arranged in the scouring annular cavity, the high-pressure water supply annular cavity is communicated with the scouring annular cavity through a plurality of high-pressure hoses, the cutting part is provided with a cutting channel which is through up and down and is butted with the crushing channel, the cutting part is provided with a plurality of high-pressure water spraying channels which are through up and down, the upper port of each high-pressure water spraying channel is communicated with the scouring annular cavity, the cutting part is internally provided with a high-pressure water spraying annular cavity butted with the lower port of each high-pressure water spraying channel, the bottom of the cutting part is rotatably provided with a plurality of cutting wheels in a circumferential array, the bottom of the cutting part is provided with a plurality of high-pressure spray pipes butted with the high-pressure water spraying annular cavity, the nozzle of each high-pressure spray pipe is respectively arranged towards each cutting wheel, and the outer circumference of the tunneling part and the outer circumference of the crushing part are respectively provided with a plurality of supporting mechanisms which are in pressing contact with the well wall along the circumferential array;

the tunneling part comprises a tunneling barrel body, the top and the bottom of the tunneling barrel body are both open, an upper flange end cover is fixedly connected to the top of the tunneling barrel body, a lower flange end cover is fixedly connected to the bottom of the tunneling barrel body, vertically-through sewage discharge holes are formed in the middle parts of the upper flange end cover and the lower flange end cover, a sewage discharge pipeline is fixedly connected between the upper flange end cover and the lower flange end cover, a sewage discharge channel is formed in the sewage discharge pipeline, the upper port and the lower port of the sewage discharge pipeline are respectively in butt joint with the upper sewage discharge hole and the lower sewage discharge hole correspondingly, the lower end of a sewage discharge pipeline connector is fixedly connected to the middle part of the upper flange end cover and is in butt joint with the upper sewage discharge hole, a high-pressure water supply ring cavity is formed between the outer circle of the sewage discharge pipeline and the inner circle of the tunneling barrel body, four high-pressure water inlet pipe connectors are arranged around the sewage discharge pipe connector, the lower ends of the four high-pressure water inlet pipe connectors are fixedly arranged on the upper flange end cover and are communicated with the high-pressure water supply ring cavity, the middle part of the lower flange end cover is fixedly connected with a corrugated pipe, the upper port of the corrugated pipe is in butt joint with four lower side of a second hydraulic oil cylinder body, and four hydraulic oil cylinder bodies are arranged on the upper end cover, and are hinged with the upper end of the upper hydraulic oil cylinder body, and the upper hydraulic oil cylinder, and the lower hydraulic cylinder body, and the upper end cover, and the lower hydraulic cylinder, and the hydraulic cylinder body, and the hydraulic oil cylinder body, the hydraulic cylinder body, and the hydraulic cylinder body, and the hydraulic cylinder body are arranged on the upper end of the second hydraulic cylinder body, and the upper end of the second hydraulic cylinder, the hydraulic cylinder body;

the crushing part comprises a crushing barrel, the top and the bottom of the crushing barrel are both open, a friction circular tube is concentrically arranged in the crushing barrel, the upper end of the friction circular tube is fixedly connected with the inner top of the crushing barrel in an integrated forming way, the inner diameter of the friction circular tube is the same as the inner diameter of a sewage discharge hole, the outer diameter of the friction circular tube is smaller than the inner diameter of the crushing barrel, the lower end of the friction circular tube is positioned at the inner lower side part of the crushing barrel, a first thrust bearing sleeved on the outer circumference of the top of the friction circular tube is installed at the inner top of the crushing barrel, the outer circle of the first thrust bearing is in contact with the inner circle of the crushing barrel, a plurality of first water seals are sleeved on the outer circumference of the friction circular tube, a conductive slip ring is fixedly sleeved on the outer circumference of the lower side part of the friction circular tube, a deep groove ball bearing is sleeved on the outer circumference of the bottom of the friction circular tube, the lower end of the corrugated pipe is fixedly connected to the middle of the upper surface of the crushing barrel and is in butt joint with the upper end port of the friction circular pipe, the lower ends of piston rods of four second hydraulic cylinders are hinged to the outer edge of the upper surface of the crushing barrel, the lower ends of four high-pressure hoses are fixedly installed on the upper surface of the crushing barrel, four high-pressure water flow injection channels are formed in the upper surface of the crushing barrel, the lower ends of the four high-pressure hoses are in butt joint with the upper ends of the four high-pressure water flow injection channels respectively, four high-pressure water flow perforation holes are formed in the periphery of the upper side portion of the inner side wall of the crushing barrel, the lower ends of the four high-pressure water flow injection channels are communicated with the four high-pressure water flow perforation holes respectively, friction elongated grooves are uniformly formed in the inner wall of the friction circular pipe in the axial direction, the crushing channel is formed in the friction circular pipe, and a pipe column is integrally formed in the bottom of the crushing barrel;

the cutting part comprises a cutting barrel, the top and the bottom of the cutting barrel are both open, the cutting channel is formed in the cutting barrel, a diversion barrel is fixedly connected with the top of the cutting barrel in a concentric forming mode, the top and the bottom of the diversion barrel are both open, a radial plate support is fixedly connected with the inner circle of the bottom of the diversion barrel, a crushing shaft is arranged in the diversion barrel in a concentric mode, the lower end of the crushing shaft is fixedly connected to the middle of the radial plate support, the diversion barrel is inserted in the crushing barrel and sleeved outside a friction circular pipe, a scouring ring cavity is formed between the outer circle of the diversion barrel and the inner circle of the crushing barrel, the crushing shaft stretches into the friction circular pipe, a helical cutting blade is integrally formed on the crushing shaft along the axial direction, and a helical guide blade with the direction opposite to the direction of rotation of the helical cutting blade is integrally formed on the outer circumference of the diversion barrel along the axial direction, the outer circle of the upper side part of the flow guide cylinder body is integrally formed with a plurality of rotary blades arranged in a circumferential array, the outer circle of the upper end of the flow guide cylinder body is fixedly connected with an annular plate, a second thrust bearing is sleeved on the outer circumference of the top part of the flow guide cylinder body, the outer circle of the second thrust bearing is contacted with the inner circle of the crushing cylinder body, the upper surface of the second thrust bearing is tightly pressed and contacted with the lower surface of the annular plate, the inner edge of the upper surface of the annular plate is in top pressing contact with the outer edge of the lower surface of the first thrust bearing, each first water seal, each conductive sliding ring and each deep groove ball bearing are embedded between the flow guide cylinder body and the friction circular pipe, the spraying directions of four high-pressure water flow perforating holes are respectively arranged correspondingly towards each rotary blade, a rotary ring groove with an opening at the top part is formed in the circumferential direction of the cutting cylinder body, the pipe column is correspondingly rotatably installed in the rotary ring groove, and a second water seal sleeved on the outer circumference of the pipe column is arranged in the rotary ring groove;

the bottom of the cutting cylinder body is fixedly provided with a core taking seat, the middle part of the core taking seat is provided with a core taking channel which is through up and down and is butted with the cutting channel, the bottom of the core taking seat is fixedly connected with a slag discharging seat, the middle part of the slag discharging seat is provided with a slag discharging channel which is through up and down and is butted with the slag discharging channel, each high-pressure water spraying channel vertically penetrates through the eccentric parts of the cutting cylinder body, the core taking seat and the slag discharging seat, the bottoms of the cutting cylinder body and the core taking seat are respectively provided with an arc-shaped placing groove, the arc-shaped placing groove at the upper side is correspondingly connected with the lower port of the cutting channel, the arc-shaped placing groove at the lower side is correspondingly connected with the lower port of the core taking channel, one side of the inner wall of the lower port of the cutting channel and one side of the inner wall of the lower port of the core taking channel are respectively provided with a waterproof motor, the waterproof motors are vertically arranged, and the upper ends of power shafts of the two waterproof motors are respectively and fixedly connected with a baffle plate, the baffle on the upper side correspondingly slides in the arc-shaped accommodating groove on the upper side and is used for plugging the lower port of the cutting channel, the baffle on the lower side correspondingly slides in the arc-shaped accommodating groove on the lower side and is used for plugging the lower port of the coring channel, two waterproof motors are both connected with the conductive slip ring through waterproof cables, the middle part of the slag discharging seat is provided with an annular groove, the bottom of the slag discharging seat is fixedly provided with a cutting flange seat, the middle part of the cutting flange seat is provided with a slag discharging hole which is through from top to bottom and is in butt joint with the slag discharging channel, a high-pressure water spraying annular cavity is formed between the top of the cutting flange seat and the annular groove, the bottom of the cutting flange seat is fixedly connected with a conical slag collecting hopper with a small top and a big bottom, the upper port of the conical slag collecting hopper is in butt joint with the slag discharging hole, the outer edge of the bottom of the cutting flange seat is provided with a plurality of pillars along a circumferential array, each cutting wheel respectively and correspondingly rotates on each pillar, and the central shaft of each cutting wheel is arranged along the radial direction of the cutting flange seat, the cutting surface of each cutting wheel faces the center of the cutting flange seat, the inner end of the central shaft of each cutting wheel is fixedly provided with a driving impeller, each high-pressure spray pipe is fixedly arranged on the cutting flange seat, and the nozzle of each high-pressure spray pipe is downwards arranged towards the upper side part of each driving impeller;

the mounting grooves that four circumference arrays set up are all seted up on the outer circumference of tunnelling barrel and the outer circumference of broken barrel, the downside and the front side of the mounting groove of front side are all uncovered, all install in every mounting groove supporting mechanism, the supporting mechanism of front side includes hinged support, vertical support clamp plate and third hydraulic cylinder, hinged support passes through the mounting groove bottom of a plurality of screws fixed mounting at the front side, vertical support clamp plate is along controlling the vertical setting of direction and being located the mounting groove the place ahead of front side, third hydraulic cylinder's cylinder body bottom articulates the last side at hinged support, third hydraulic cylinder's piston rod stretches out to the below, third hydraulic cylinder's piston rod front end articulates at vertical support clamp plate's trailing flank middle part, vertical support clamp plate's trailing flank middle part downside articulates there is the fourth connecting rod, the slope setting backward, it has two parallel fifth connecting rods to articulate between the trailing flank of fourth connecting rod and hinged support's the lower side, vertical support clamp plate's leading flank is the rough surface.

5. The method of operating a tight rock geological exploration sampling drilling system as claimed in claim 4 wherein: the method specifically comprises the following steps:

(1) Driving the whole system to a designated operation position by a truck, adjusting the well drilling guide pipe assembly to be in a state of being fixedly connected with the carriage bottom plate, and preparing for next drilling operation;

(2) Placing a common drill bit in a central hole of the electric slip, screwing up each drill rod one by one through the top drive and the electric slip, performing drilling operation on the stratum until the stratum is drilled to the depth of the compact stratum, unscrewing each drill rod one by one through the top drive and the electric slip, hoisting each drill rod back to the first fixed frame, and taking down the common drill bit;

(3) Buckling up and buckling each stratum well casing pipe one by one through a top drive and an electric slip, butting and lowering each stratum well casing pipe into a well, fixing the well wall of the well and preventing collapse;

(4) The electric slips are disassembled, the drill bit special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors are fixedly connected with the lower end of a high-pressure water inlet pipeline through a five-way pipe, the upper end of a blow-off pipe connector is fixedly connected with the lower end of a blow-off pipeline, the drill bit special for geological coring is placed into the bottom of the well through the high-pressure water inlet pipeline and the blow-off pipeline, compact rock is crushed, sampling operation is carried out, after sampling is completed, the high-pressure water inlet pipeline and the blow-off pipeline are wound, the drill bit special for geological coring is lifted out of the well, and a sample is taken out;

(5) And each stratum well casing is sequentially broken off through the top drive and the electric slips, and each stratum well casing is hung back to the second fixed frame.

6. The working method of the tight rock geological exploration sampling drilling system according to claim 5, characterized by comprising the following steps: the step (1) is specifically as follows: the truck drives the whole system to a designated operation position, wherein, initially, two sliding supports are close to the round hole, the upper end of the second guide pipe is at the highest position, two limit guide rods are positioned at the top of the corresponding guide long hole, the piston rods of the two first hydraulic oil cylinders are in an extending state, each second connecting rod and each third connecting rod are close to the second guide pipe, namely, the drilling guide pipe fixing frame is in a contraction state like an umbrella framework, the two first hydraulic oil cylinders are started, the piston rods of the two first hydraulic oil cylinders synchronously contract upwards and drive the second circular ring-shaped support to move upwards along the outer circumference of the second guide pipe, and then each second connecting rod and each third connecting rod are far away from the second guide pipe, so that the drilling guide pipe fixing frame is opened like the umbrella framework, then two horizontal servo speed reducing motors are started to respectively drive corresponding horizontal screw rods to rotate, the horizontal screw rods on the front side drive sliding supports on the front side to move forwards, the horizontal screw rods on the rear side drive sliding supports on the rear side to move backwards, and then the lower ends of the two first connecting rods are far away from round holes along with the corresponding sliding supports, and then the upper ends of the two first connecting rods can drive the second guide pipe to move downwards, the two limiting guide rods are located at the bottoms of the corresponding guide long holes, at the moment, the lower ends of the second connecting rods are in contact with a carriage bottom plate, the lower surfaces of the anchor bolt fixing seats are tightly pressed on the upper surface of the carriage bottom plate, the anchor bolt fixing seats are respectively and fixedly installed on the carriage bottom plate through the plurality of anchor bolts, and therefore the preparation work for the next drilling operation is completed.

7. The working method of the tight rock geological exploration sampling drilling system according to claim 6, characterized by comprising the following steps: the step (2) is specifically as follows: a common drill bit is clamped and fixed in a central hole of an electric slip, corresponding driving gears are synchronously driven to rotate through four vertical servo speed reducing motors, the two driving gears on the left side are in transmission connection with racks on the left side, the two driving gears on the right side are in transmission connection with the racks on the left side, therefore, a horizontal sliding plate moves back and forth on two first horizontal guide rails, the horizontal sliding plate stops moving forwards to the positions above all drill rods, a cable winding motor drives a cable reel to rotate to pay off cables, a top drive is driven to descend to the position right above a first drill rod, the top drive is clamped and tightly holds the top of the first drill rod, the cable winding motor drives the cable reel to rotate reversely to take up cables, the top drive lifts the first drill rod, the four vertical servo speed reducing motors synchronously reverse again, the horizontal sliding plate is driven to reversely move to the position right above a second guide pipe, and then, the cable winding motor drives the cable reel to rotate for releasing the cable, the top drive drives the first drill rod to fall into the second guide pipe until the lower end of the first drill rod falls to the lower end of the first guide pipe, the lower end of the first drill rod is buckled with the upper end of the common drill bit under the action of the top drive and the electric slip, the slip drive motor is started, the slip drive motor drives the electric slip to clasp the first drill rod tightly and rotate and drive the first drill rod to move downwards step by step, so that the common drill bit performs drilling operation on a stratum, during the drilling operation, the top drive is used for buckling the drill rods one by one until the common drill bit drills into the depth of a compact rock stratum, the whole connected drill rods are hoisted by the top drive, the electric slip blocks the second drill rod on the upper portion, and the first drill rod on the upper portion is buckled with the second drill rod on the upper portion through the top drive, and the first drill rod on the upper part is hoisted back to the first fixed frame, so that the drill rods are broken off one by one, the drill rods are hoisted back to the first fixed frame, and the common drill bit is taken down.

8. The method of claim 7, wherein the drilling system comprises: the step (3) is specifically as follows: four vertical servo reducing motors drive a horizontal sliding plate to move backwards on two first horizontal guide rails to be right above each stratum well casing, a cable winding motor drives a cable reel to rotate to pay off the cable, so that a top drive is driven to be right above the first stratum well casing, the top drive is clamped and tightly holds the top of the first stratum well casing, the cable winding motor drives the cable reel to rotate in the reverse direction to take up the cable, the top drive lifts the first stratum well casing, the four vertical servo reducing motors rotate in the reverse direction again synchronously, so that the horizontal sliding plate is driven to move in the reverse direction to be right above a second guide pipe, then the cable winding motor drives the cable reel to rotate to pay off the cable, the top drive drives the first stratum well casing to fall into the second guide pipe until the lower end of the first stratum well casing falls through the lower end of the first guide pipe and is inserted into a central hole of an electric slip, the electric slip clamps a first stratum well casing, then the cable winding motor drives the cable reel to rotate reversely to take up the cable, the top drive is lifted out of a second guide pipe, the four vertical servo reducing motors drive the horizontal sliding plate to move backwards to the position right above each stratum well casing again, the cable winding motor drives the cable reel to rotate to pay off the cable, the top drive is driven to fall to the position right above a second stratum well casing, the top drive clamps the top of the second stratum well casing tightly, the cable winding motor drives the cable reel to rotate reversely to take up the cable, the top drive lifts the second stratum well casing, the four vertical servo reducing motors rotate reversely again synchronously, so that the horizontal sliding plate is driven to move reversely to the position right above the second guide pipe, then the cable winding motor drives the cable reel to rotate to pay off the cable, and the top drive drives the second stratum well casing to fall into the second guide pipe, and buckling the lower end of the second stratum well casing pipe and the upper end of the first stratum well casing pipe one by one through the top drive and the electric slip until the lower end of the second stratum well casing pipe falls to the lower end of the first guide pipe and is butted with the upper end of the first stratum well casing pipe, and thus, butting and lowering each stratum well casing pipe into a drilling well through the top drive and the electric slip to fix the well wall of the drilling well and prevent collapse.

9. The working method of the tight rock geological exploration sampling drilling system according to claim 8, characterized by: the step (4) is specifically as follows: the electric slips are disassembled, the drill bit special for geological coring is placed in the center of an upper port of a well, the upper ends of four high-pressure water inlet pipe connectors are fixedly connected with the lower end of a high-pressure water inlet pipeline through a five-way pipe, the upper end of a blow-off pipe connector is fixedly connected with the lower end of a blow-off pipeline, the high-pressure water inlet pipeline is unreeled through a high-pressure water inlet pipe reel, the blow-off pipeline is unreeled through the blow-off pipe reel, the drill bit special for geological coring is further put into the bottom of the well through the high-pressure water inlet pipeline and the blow-off pipeline, four third hydraulic cylinders on the tunneling barrel are started, piston rods of the four third hydraulic cylinders on the tunneling barrel extend out to fixedly support corresponding vertical supporting pressing plates on the inner wall of the well, so that the tunneling barrel is fixed in the well, then the breaking part and the cutting part are pushed downwards for a certain distance through the extension of the piston rods of the four second hydraulic cylinders, and then the four third hydraulic cylinders on the breaking barrel are started, the four third hydraulic oil cylinder piston rods on the crushing cylinder body extend out to fixedly support the corresponding vertical supporting pressing plates on the inner wall of a drilling well, so that the crushing cylinder body is fixed in the drilling well, the four third hydraulic oil cylinder piston rods on the tunneling cylinder body are retracted to be separated from the inner wall of the drilling well, the tunneling part moves downwards for a certain distance through the contraction of the piston rods of the four second hydraulic oil cylinders, the four third hydraulic oil cylinder piston rods on the tunneling cylinder body extend out to fixedly support the corresponding vertical supporting pressing plates on the inner wall of the drilling well, the tunneling cylinder body is fixed in the drilling well, the four third hydraulic oil cylinder piston rods on the crushing cylinder body are retracted to be separated from the inner wall of the drilling well, the crushing part and the cutting part are pushed downwards for a certain distance through the extension of the piston rods of the four second hydraulic oil cylinders, and the four third hydraulic oil cylinder piston rods on the crushing cylinder body extend out to fixedly support the corresponding vertical supporting pressing plates on the inner wall of the drilling well The inner wall is fixed, so that the crushing cylinder is fixed in the well drilling, and the operations are repeated, and the creeping advance of the drill bit special for geological coring is realized;

in the creeping forward process of the drill bit special for geological coring, a high-pressure water supply pump and a sewage discharge pump are started, the high-pressure water supply pump injects high-pressure water into a high-pressure water supply ring cavity in a driving part through a high-pressure water supply pipe, a high-pressure water inlet pipeline and four high-pressure water inlet pipe connectors, the high-pressure water enters four high-pressure water jet channels through four high-pressure hoses, the high-pressure water is injected into a scouring ring cavity through the four high-pressure water jets and impacts each rotating blade on the outer circumference of the upper side part of a guide cylinder body to drive the guide cylinder body to rotate at high speed, the guide cylinder body drives a cutting part to rotate integrally, the high-pressure water is accelerated to downwards impact each high-pressure water jet channel through the rotation of a spiral guide blade in the scouring ring cavity, the high-pressure water enters the high-pressure water jet ring cavity through each high-pressure water jet channel, and finally the high-pressure water is sprayed out through each high-pressure spray pipe, part of high-pressure water impacts each driving impeller to drive each cutting wheel to rotate at high speed, part of high-pressure water impacts compact rocks to be mined to perform crushing operation, meanwhile, each cutting wheel rotates to cut and crush the compact rocks, the high-pressure water can reversely gather towards a conical slag collecting hopper and upwards flow back due to the small space at the bottom of a drilled well, so that crushed slag of the compact rocks is sent into the conical slag collecting hopper, upwards enters a crushing channel through a slag discharge hole, a slag discharge channel, a core taking channel and a cutting channel, is further cut and crushed under the action of a high-speed rotating spiral cutting blade, is simultaneously subjected to friction crushing with a friction elongated slot on the inner wall of a friction circular pipe, then enters a sewage discharge pipeline through a corrugated pipe, is discharged out of the tunneling barrel through the sewage discharge pipeline, is discharged to the ground through a sewage discharge pipe connector and a sewage discharge pipeline, and finally enters a sewage discharge water tank through a sewage pump and a water return pipe, wherein initially, the two baffles are positioned at the eccentric position, and the coring channel and the cutting channel are both opened;

when arriving a certain assigned position, start the waterproof motor of upside, rotate the baffle of upside to center department shutoff cutting passageway's lower port, then during the core passageway is got to broken fine and close rock sample entering, then start the waterproof motor of downside, rotate the baffle of downside to center department shutoff and get the lower port of core passageway, so, accomplish the sample, upwards pack up high pressure water inlet pipe line and sewage pipes in step, take out the special drill bit of geology coring from the well drilling, take out the sample.

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