CN116357314A - Geological environment sampling drilling machine and application method thereof - Google Patents

Abstract

The invention relates to a drilling rig, in particular to a geological environment sampling drilling rig for obtaining geological samples and a use method thereof. The geological environment sampling drilling rig includes a mounting frame with an auger rod. The lower part of the auger rod is provided with a conical shell made of multiple arc plates, and the upper end of the triangular arc plate is connected to the auger rod through a hinge; the middle part of the auger rod is provided with a support rod, and the lower part of the support rod is installed with a motor. The lower part of the motor is connected with a sampling tube with sawtooth extending downwards. The above-mentioned geological environment sampling drilling rig puts the motor into the auger rod through the support rod, and drives the sampling tube to rotate through the motor. During the rotation of the sampling tube, the serrations at the lower end will unscrew the geological sample at the bottom of the borehole out of the cylindrical sample block, driven by the support rod. The cylindrical sample block is pulled out of the borehole during the ascending process of the motor and the sampling pipe, and then geological samples are obtained.

Description

A geological environment sampling drilling rig and its use method

technical field

The invention relates to a sample sampling device in cellar construction or site investigation, and mainly relates to a geological environment sampling drilling rig for collecting samples underground.

Background technique

During geological survey, it is necessary to obtain geological samples deep underground. Such as obtaining water quality, soil or rock, of course, other geological surveys also need to obtain geological samples protruding into the ground. The excavation of underground soil samples is greatly affected by equipment, and it is difficult to obtain samples with deep shovels when the ground is hard. When drilling underground soil samples by drilling rigs, the drill holes are prone to collapse or drop when the drill pipe is pulled out. The soil quality in the upper part of the borehole will affect the acquisition of samples.

Contents of the invention

The main purpose of the present invention is to provide a drilling rig for geological environment sampling, which aims to solve the problem that it is difficult to obtain soil samples underneath.

The present invention provides a geological environment sampling drilling rig. The geological environment sampling drilling rig includes a mounting frame, an auger rod is arranged on the mounting frame, and a first helical blade is provided on the outer wall of the spiral drilling rod; A driving motor for driving the auger rod is provided; the auger rod is a hollow tube. The lower opening of the auger rod is provided with a conical cone shell, the cone shell is formed by buckling at least three triangular arc plates, and the upper end of the triangular arc plate is connected to the auger rod through a hinge. above; the conical shell is provided with a second helical blade, and each of the triangular arc plates is connected with a return spring that drives the buckling of the triangular arc plates; a support rod is provided in the middle of the auger rod, and the support A motor is installed on the lower part of the rod, and a sampling tube extending downward is connected to the lower part of the motor. The outer diameter of the sampling tube is smaller than the inner diameter of the auger rod, and serrations are arranged on the lower end surface of the sampling tube.

Preferably, it also includes a circular frame for fixing the motor, the motor is installed in the circular frame, the outer periphery of the circular frame is provided with a guide groove, and the inner wall of the auger rod is provided with a The guide rail is matched with the groove, and the guide rail is snapped into the guide groove.

Still preferably, the guide rail and the guide groove are in a spiral shape that matches, and the guide groove spirals up and down along the guide rail; the support rod is rotatably connected with the circular frame.

More preferably, the guide rail extends to the bottom of the auger rod, and when the guide groove extends to the bottom end of the guide rail, the sampling pipe stretches out of the conical shell, and the triangular arc plate Top to sides.

More preferably, a bearing is sheathed on the outer periphery of the lower part of the sampling tube, and the outer side of the bearing abuts against the inner wall of the triangular arc plate.

More preferably, the inner wall of the sampling tube is provided with an inner helical blade, and the width of the inner helical blade is one-sixth to one-fifth of the inner diameter of the inner wall of the sampling tube.

More preferably, the motor as a whole has a cylindrical shape, the rotating shaft of the motor extends downward, and the sampling tube is fixed on the rotating shaft.

The present invention also provides a method for using a geological environment sampling drilling rig, comprising the following steps:

Step 1: Obtain a borehole through an auger drill rod, and the soil in the borehole is rotated out of the borehole through the first helical blade and the second helical blade;

Step 2: Lift the auger until the lifting height is greater than the arc length of the triangular arc plate;

Step 3: Put the motor into the hollow cavity of the auger rod through the support rod, and lower the motor to the lower part of the auger rod. At this time, the sampling tube lifts the triangular arc plate to expand the triangular arc plate, and the The sampling tube extends to the lower part of the triangular arc plate;

Step 4: Control the operation of the motor to rotate the sampling tube, and drill the soil or sand in the lower part of the borehole through the sampling tube;

Step 5: extract the support rod, make the motor and sampling tube rise from the auger rod and get out of the auger rod.

Compared with the prior art, the geological environment sampling drilling rig provided by the invention and its use method have the following advantages:

Beneficial effect:

The above-mentioned geological environment sampling drilling rig and its use method are combined with the existing auger drilling technology. The lower cone shell of the auger drilling rig is formed by fastening three triangular arc plates, and the three triangular arc plates are hinged on the auger. The lower part of the rod is convenient for the triangular arc plate to open, and then it is convenient to put the motor and the sampling tube through the middle cavity of the auger rod.

In addition, in this embodiment, the motor is put into the auger rod through the support rod, and the rotating shaft extending downward of the motor is connected with the sampling tube, and the sampling tube is driven to rotate by the motor, and the sawtooth at the lower end of the sampling tube will drill the lower part of the hole during the rotation process. The cylindrical sample block is unscrewed by the geology, and the cylindrical sample block is pulled out of the borehole when the support rod drives the motor and the sampling tube to rise, and then the geological sample is obtained.

Sampling is carried out by the geological environment sampling rig mentioned above. During the sampling process, the auger drill pipe can protect the inner wall of the borehole, and there is no need to worry about the collapse of the borehole. And compared with Luoyang shovel or other long-stem shovel-like sampling equipment, the drilling depth value of the auger drill pipe is greater, and deeper geological samples can be obtained.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings that are required in the description of the embodiments or the prior art.

Obviously, the drawings in the following description are only some specific embodiments of the present invention, and those skilled in the art can also obtain other Attached picture.

FIG. 1 is a schematic diagram of a partial three-dimensional structure of a screw rod in Embodiment 1 of the present invention.

Fig. 2 is a partial cross-sectional schematic diagram of the screw rod in Embodiment 1 of the present invention.

Fig. 3 is a schematic perspective view of the three-dimensional structure of the baffle in Embodiment 1 of the present invention.

Fig. 4 is a schematic partial cross-sectional view of the sampling tube in Embodiment 1 of the present invention.

In the attached picture:

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.

Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise specified and limited, the terms "connection" and "fixation" should be understood in a broad sense, for example, "fixation" can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal communication between two elements or an interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered as a combination of technical solutions. Does not exist, nor is it within the scope of protection required by the present invention.

Example 1

This embodiment provides a geological environment sampling drilling rig, the geological environment sampling drilling rig includes a mounting frame, the mounting frame is provided with an auger rod 1, and the outer wall of the auger rod 1 is provided with a first helical blade 2; The mounting frame is also provided with a driving motor for driving the auger rod 1; the auger rod 1 is a hollow tube. A conical cone shell 3 is provided at the lower opening of the auger rod 1 . The above-mentioned auger rod 1, drive motor and installation frame basically adopt the existing long auger rig. The improvement of the present application lies in that the conical shell 3 is fastened by at least three triangular arc plates, and the upper ends of the triangular arc plates are connected to the auger rod 1 through hinges. The above-mentioned hinge connection can be that a casing is arranged in the middle of the triangular arc plate, and a rotating shaft is fixed at the lower end of the long screw rotor, and the rotating shaft is inserted into the casing. A conical cone shell 3 is formed after the triangular arc plates are fastened. In order to facilitate the drilling of the cone shell 3, a second helical blade 4 is arranged on the cone shell 3. The second helical blade 4 is divided into multiple sections, and each section is respectively set On each triangular arc plate, after each triangular arc plate is buckled, the second helical blade 4 of each segment is connected into one body, and then drilling is performed. Each of the triangular arc plates is connected with a return spring that drives the buckling of the triangular arc plates, and the return spring may be a torsion spring on the hinge connection shaft of the triangular arc plates. The middle part of the auger rod 1 is provided with a support rod, and the support rod should also be arranged on the mounting frame. Of course, other mounting frames can also be set up so that the support rod extends into the hollow cavity of the auger rod 1. And in order to control the lifting of the support rod, the support rod can also be lifted by chains or other devices. In actual operation, the length of the support rod is too large, and the support rod is designed with multiple sections, and each section of the support rod is connected in a detachable way. . The bottom of the support rod is equipped with a motor 6, the bottom of the motor 6 is connected with a sampling tube 9 extending downwards, the outer diameter of the sampling tube 9 is less than the inner diameter of the auger rod 1, and the sampling tube 9 Serrations 92 are provided on the lower end face of the lower end.

The above-mentioned geological environment sampling drilling rig is combined with the existing auger drilling rig technology, and the cone shell 3 at the lower part of the auger drilling rig is set to be formed by buckling at least three triangular arc plates, and the triangular arc plates are hingedly connected to the lower part of the auger rod 1 , It is convenient for the triangular arc plate to open, and then it is convenient to put the motor 6 and the sampling tube 9 through the middle cavity of the auger rod 1, so that the sampling tube 9 drops to the bottom of the auger rod 1. In addition, in this embodiment, the motor 6 is put into the auger rod 1 through the support rod, and the rotating shaft 8 extending downward of the motor 6 is connected with the sampling tube 9, and the sampling tube 9 is driven to rotate by the motor 6, and the sampling tube 9 rotates The sawtooth 92 at the middle and lower end spins out the geological sample block at the lower part of the borehole, and pulls the cylindrical sample block out of the borehole when the support rod drives the motor 6 and the sampling tube 9 to ascend, so as to obtain geological samples. Sampling is carried out by the above-mentioned geological environment sampling rig, and the auger drill pipe 1 can protect the inner wall of the borehole during the sampling process, and there is no need to worry about the collapse of the borehole. And compared with Luoyang shovel or other long-stem shovel-like sampling equipment, the drilling depth value of the auger drill pipe 1 is larger, and deeper geological samples can be obtained.

Specifically, in this embodiment, in order to facilitate the motor 6 to move up and down in the auger rod 1, and also to prevent the motor 6 from rotating relative to the auger rod when the motor 6 is at the bottom of the auger rod, keep the motor 6 relatively stationary in the direction of rotation , also includes a circular frame 5 for fixing the motor, the motor 6 is installed in the circular frame 5, the outer periphery of the circular frame 5 is provided with a guide groove 7, and the inner wall of the auger rod 1 is provided with A guide rail adapted to the guide groove 7 , the guide rail snaps into the guide groove 7 . When the guide groove 7 moves up and down on the guide rail, and then drives the motor 6 to lift, the above-mentioned guide groove 7 and the guide rail can avoid the side deviation of the motor 6, and simultaneously prevent the motor 6 from rotating at the bottom of the auger rod.

More specifically, in this embodiment, in order to control the lifting of the motor 6 in the auger rod 1, the guide rail and the guide groove 7 are in a spiral shape that is matched, and the guide groove 7 is along the guide rail. Spiral lifting; the support rod is connected with the circular frame 5 in rotation. When specifically lifting, the staff can control the forward rotation and overturning of the motor 6 through the remote control device, and then the motor 6 and the circular frame 5 are rotated to make it spirally rotate along the helical guide rail. It should be noted that the rotation trend of the sampling tube driven by the motor should match the helical direction of the above-mentioned guide rail. After the motor moves to the bottom, the rotation trend when driving the sampling tube should turn downward, and the lower part of the guide rail is provided with a stopper. Prevent the motor from continuing to move, and make the sampling tube rotate at this time. Through the spiral lifting, the impact force of the motor lifting can be reduced.

More specifically, in this embodiment, the guide rail extends to the lower part of the auger rod 1, and when the guide groove 7 extends to the bottom end of the guide rail, the sampling pipe 9 extends out of the cone shell 3, and push the triangular arc plate to both sides.

More specifically, the lower outer circumference of the sampling tube 9 is sheathed with a bearing 10, and the outer side of the bearing 10 abuts against the inner wall of the triangular arc plate. During the rotation process of the sampling tube 9, the above-mentioned bearing 10 can reduce the frictional force between the sampling tube 9 and the inner wall of the triangular arc plate, and reduce the frictional resistance during the downward rotation of the sampling tube 9 to avoid damage to the triangular arc plate.

More specifically, in this embodiment, in order to strengthen the connection strength between the sample and the sampling tube 9, the cylindrical sample drilled by the sampling tube 9 is fixed on the sampling tube 9. In this embodiment, the sampling tube 9 The inner wall is provided with an inner helical blade 91, the width value of the inner helical blade 91 is one-sixth to one fifth of the inner wall diameter value of the sampling tube 9, and the inner helical blade 91 drives the sample to rotate, while improving The connection strength of the sampling pipe 9 and the geological sample.

More specifically, the motor 6 has a cylindrical shape as a whole, the rotating shaft 8 of the motor 6 extends downward, and the sampling tube 9 is fixed on the rotating shaft 8 .

The present invention also provides a method for using a geological environment sampling drilling rig, comprising the following steps:

Step 1: Obtain a borehole through the auger rod 1, and the soil in the borehole is screwed out of the borehole through the first helical blade 2 and the second helical blade 4;

The second step: promote the auger drill pipe 1 until the lifting height is greater than the arc length of the triangular arc plate;

The third step: put the motor 6 into the hollow cavity of the auger rod 1 through the support rod, and lower the motor 6 to the lower part of the auger rod 1. At this time, the sampling tube 9 lifts the triangular arc plate to make the triangular arc plate The arc plate is expanded, and the sampling pipe 9 extends to the lower part of the triangular arc plate;

Step 4: Control the operation of the motor 6 to rotate the sampling pipe 9, and drill the soil or sand in the lower part of the borehole through the sampling pipe 9;

Step 5: Extract the support rod, so that the motor 6 and the sampling pipe 9 rise from the auger rod 1 and separate from the auger rod 1 .

Of course, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly/ Indirect application in other relevant technical fields is included in the patent protection scope of the present invention, and should be protected by the present invention.

Claims (8)

1. The geological environment sampling drilling rig comprises a mounting frame, wherein a spiral drill rod is arranged on the mounting frame, and a first spiral blade is arranged on the outer wall of the spiral drill rod; the mounting frame is also provided with a driving motor for driving the spiral drill rod; the spiral drill rod is a hollow pipe and is characterized in that,

the lower opening of the spiral drill rod is provided with a conical shell which is formed by buckling at least three triangular arc plates, and the upper ends of the triangular arc plates are connected to the spiral drill rod through hinges; the cone shell is provided with a second helical blade, and each triangular arc plate is connected with a return spring for driving the triangular arc plates to be buckled;

the middle part of auger stem sets up the bracing piece, the motor is installed to the lower part of bracing piece, the lower part of motor is connected with downwardly extending's sampling tube, the external diameter of sampling tube is less than the internal diameter of auger stem, be provided with the sawtooth on the lower terminal surface of sampling tube.

2. The geological environment sampling drill of claim 1, wherein,

the spiral drill rod is characterized by further comprising a round frame used for fixing the motor, the motor is installed in the round frame, a guide groove is formed in the periphery of the round frame, a guide rail matched with the guide groove is arranged on the inner wall of the spiral drill rod, and the guide rail is clamped into the guide groove.

3. The geological environment sampling drill of claim 2, wherein,

the guide rail and the guide groove are in a spiral shape which is matched with each other, and the guide groove is spirally lifted along the guide rail;

the support rod is rotatably connected with the circular frame.

4. A geological environment sampling drill as claimed in claim 3, wherein,

the guide rail extends to the lower part of the spiral drill rod, and when the guide groove extends to the bottommost end of the guide rail, the sampling tube extends out of the cone shell and pushes the triangular arc plates to two sides.

5. The geological environment sampling drill of claim 4, wherein,

the lower part periphery cover of sampling tube is equipped with the bearing, the outside top of bearing connects the inner wall of triangle arc board.

6. The geological environment sampling drill of claim 4, wherein,

the inner wall of the sampling tube is provided with an inner spiral blade, and the width value of the inner spiral blade is one sixth to one fifth of the inner diameter value of the inner wall of the sampling tube.

7. The geological environment sampling drill of claim 2, wherein,

the motor is wholly cylindrical, the pivot downwardly extending of motor, the sampling tube is fixed in the pivot.

8. A using method of a geological environment sampling drilling machine is characterized in that,

the method comprises the following steps:

the first step: acquiring a drilling hole through a spiral drill rod, wherein soil in the drilling hole is screwed out of the drilling hole through the first spiral blade and the second spiral blade;

and a second step of: lifting the spiral drill rod until the lifting height is greater than the arc length of the triangular arc plate;

and a third step of: the motor is placed into the hollow cavity of the spiral drill rod through the supporting rod, the motor is lowered to the lower part of the spiral drill rod, at the moment, the sampling tube jacks up the triangular arc plate, the triangular arc plate is unfolded, and the sampling tube extends to the lower part of the triangular arc plate;

fourth step: controlling the motor to work, enabling the sampling tube to rotate, and drilling soil or sand at the lower part of the drilling hole through the sampling tube;

fifth step: and (5) extracting the supporting rod to enable the motor and the sampling tube to ascend from the spiral drill rod and separate from the spiral drill rod.

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