CN210289619U

CN210289619U - Small-size indoor drilling parameter quick acquisition device

Info

Publication number: CN210289619U
Application number: CN201920897925.9U
Authority: CN
Inventors: 梁栋才; 汤华; 吴振君; 房昱纬
Original assignee: Wuhan Institute of Rock and Soil Mechanics of CAS
Current assignee: Wuhan Institute of Rock and Soil Mechanics of CAS
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-10
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a quick collection system of small-size indoor drilling parameter, which comprises a base, be provided with the wheel rail on the base, drive arrangement passes through drive roller and sets up on the wheel rail, drive arrangement one side offsets with motor power's fixing base, another offside of drive arrangement is connected with the fixing base of hydraulic press, motor power passes through the motor gyro wheel setting on the wheel rail, the hydraulic press is connected with hydraulic stem one end, the hydraulic stem other end offsets with the reaction frame, motor power's rotation axis passes through the coupling and is connected with drill bit one end, the drill bit other end extends to in the pressure chamber, the pressure chamber passes through the pressure chamber support and sets up on the base. The utility model discloses drilling speed, drill bit rotational speed, drilling pressure, the drill bit moment of torsion, the water pump velocity of flow, the equal steerable and real time monitoring of data such as confined pressure condition. When drilling uneven rock, the change of the working state of the power motor can reflect the change of the properties of the rock. The three-sided flexible confining pressure ensures uniform stress and can simulate the ground stress condition of deep rock mass.

Description

Small-size indoor drilling parameter quick acquisition device

Technical Field

The utility model belongs to the technical field of ground mechanics indoor test, more specifically relate to a quick collection system of small-size indoor drilling parameter, it is applicable to under the condition of accurate control state of creeping into and the sample environment of locating, and quick record creeps into data such as parameter and environmental parameter.

Background

With the development of infrastructure in China, the requirements of various rock mass projects on the exploration link are higher and higher. Drilling is used as a basic exploration means, on one hand, the drilling accounts for a large amount of engineering construction cost, on the other hand, the result utilization rate is low, the drilling result which consumes a large amount of energy can only be used for formation logging, and the obtained core sample can only be used for indoor tests.

The main problems of the indoor test are that the size of the rock sample is limited, the representativeness is insufficient, the sampling disturbance is inevitable, the moisture content and the integrity of the rock sample can be changed in the transportation process, particularly, the structure of the rock with soft texture is often seriously damaged, and the obtained data is lack of authenticity. Even a rock sample with certain hardness is completely separated from the attached environment, the stress is completely released, and the reliability of data is poor.

The in-situ test is carried out on the rock-soil body in a natural state, so that the obtained data is most real and reliable. At present, the in-situ test method with higher popularization rate and mature technology mainly comprises the following steps: the method comprises the physical detection methods of static sounding test, dynamic sounding test, standard penetration test, cross plate shear test, load test, side pressure test, drilling shear test, in-situ shear test, wave velocity test, high-density electrical method and the like. Generally, the methods can only obtain a part of basic rock-soil body parameters, and the application range is not wide enough. To comprehensively master the strength and deformation parameters of the rock-soil mass to be tested, multiple tests of the same kind and multiple test combination modes are required. Due to different principles and means, various test methods have different precision and poor data compatibility. In addition, the in-situ test has huge consumption of manpower and material resources, and the period for obtaining the complete mechanical parameters of the rock and soil mass is long.

The drilling work environment is performed on a rock-soil body in a natural state, is consistent with in-situ testing, and has the condition of obtaining reliable parameters, so the measurement while drilling technology is developed.

In actual production, the operation of the drilling machine is lack of effective monitoring on the working state of the drilling machine during the test operation while drilling, namely, the operation parameters of the drilling machine cannot be quantitatively controlled. The natural state geotechnical structures are relatively complex, and the randomness of the operation parameters of the drilling machine further aggravates the discreteness of the test data. And a great deal of effort is needed to correct the data in the later period so as to establish a quantitative relation between the measurement while drilling data and the mechanical parameters of the rock and soil mass.

The existing indoor drilling test generally lacks effective confining pressure control on a rock sample, and the test is carried out under the condition that surrounding rocks of the rock-soil sample are completely released. Even with some confining pressure control, it is generally not easy to achieve continuous distribution conditions. The problem that the confining pressure is difficult to accurately simulate the actual condition is also a difficult problem of setting the confining pressure of the triaxial apparatus. In order to restore the pressure state of the rock-soil sample occurrence environment, the device is specially designed with a pressure chamber. The stress distribution in the rock-soil mass in nature can be predicted within a certain range. In a homogeneous, dense state, the stress distribution in the rock mass is continuous and the variation is uniform. During drilling operations, the stresses on the drilling face are constantly relieved as the drill bit advances. According to the characteristics, the stress-controlled three-way independently-controlled fully-flexible confining pressure chamber is specially designed. The design can overcome the defects of uneven stress and damage caused by stress concentration of a rigid loading boundary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned problem that prior art exists, provide a quick collection system of small-size indoor drilling parameter, can establish the parameter database along with boring of various types rocks and complicated stratum fast, provide data guidance for the on-the-spot test along with boring.

The utility model provides a small-size indoor drilling parameter quick acquisition device, which comprises a base, be provided with the wheel rail on the base, drive arrangement passes through drive roller and sets up on the wheel rail, drive arrangement one side offsets with motor power's fixing base, another offside of drive arrangement is connected with the fixing base of hydraulic press, motor power passes through the motor gyro wheel setting on the wheel rail, the hydraulic press is connected with hydraulic stem one end, the hydraulic stem other end offsets with the reaction frame, motor power's rotation axis passes through the coupling and is connected with drill bit one end, the drill bit other end extends to in the pressure chamber, the pressure chamber passes through the pressure chamber support and sets up on the base.

As above the pressure chamber includes the pressure chamber body, the pressure chamber body is the cuboid, the pressure chamber body passes through the pressure chamber support and sets up on the base, the pressure chamber body is provided with the drilling preformed hole towards one side of drill bit, the drill bit runs through the drilling preformed hole, the water pump is connected with water pipe one end, the water pipe other end extends to in the drilling preformed hole, six internal faces in the pressure chamber body are provided with flexible hydraulic bag respectively, each flexible hydraulic bag respectively with hydraulic bag interface connection, the flexible hydraulic bag of the internal face of one side of pressure chamber body towards the drill bit is provided with the drill bit through hole that corresponds with drilling preformed hole position, the aperture of drill bit through hole is greater than the aperture of drilling preformed hole, adjacent flexible hydraulic bag is separated by the division board, the inlet end and the drilling preformed hole intercommunication of sluicing passageway.

The utility model provides a small-size indoor drilling parameter quick acquisition device, still establishes the dust cover on the preformed hole of drilling including covering, sets up the dust cover preformed hole that corresponds with the preformed hole position of drilling on the dust cover, and the dust cover preformed hole is run through to the drill bit, and the play water end of sluicing passageway is located the dust cover, and the bottom of dust cover is provided with the catchment groove.

A rotating shaft of the power motor is provided with a drill rod rotating speed sensor and a drill rod torque sensor, the water pump is connected with the flow controller, the hydraulic machine is connected with the hydraulic sensor, and the power motor is connected with the motor power analyzer.

The driving device is provided with the driving motor, the rotating shaft of the driving motor is sleeved and fixed with the driving gear, the top of the wheel rail is provided with the chain along the extending direction of the wheel rail, and the driving gear is meshed with the chain.

The power motor is provided with the displacement sensor, and the end part of the wheel rail is provided with the baffle sheet matched with the displacement sensor.

The wheel rail is also provided with a walking stop device.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model discloses the volume is less. The modularized design can be disassembled, the transportation is convenient, the on-site operation can be carried out on the construction site, and the interference to the rock sample in the transportation process is reduced.

2. Data are collected rapidly, and cost is saved. The installation can be fast, the time for one drilling is short, and the time cost is saved; the operation of the machine is automated, and the labor cost is greatly saved.

3. The operation parameters of the drilling machine can be controlled quantitatively. The drilling speed, the rotating speed of the drill bit, the drilling pressure, the torque of the drill bit, the flow rate of a water pump, the confining pressure condition and other data can be controlled and monitored in real time.

The working condition of the power motor, current, voltage, power, frequency and other data are monitored through the power analyzer, and when uneven rock is drilled, the change of the working state of the power motor can reflect the change of the properties of the rock.

4. The influence of gravity on the test is reduced. The purpose of the horizontal setting of the drilling direction is to measure the weight on bit directly without correction.

5. And (4) flexibly confining pressure on three sides. The three-sided flexible confining pressure ensures uniform stress and can simulate the ground stress condition of deep rock mass.

Drawings

Fig. 1 is a schematic structural view of the utility model;

FIG. 2 is a schematic cross-sectional front view of the pressure chamber;

fig. 3 is a schematic left sectional view of the pressure chamber.

Wherein: 1-hydraulic rod, 2-hydraulic machine, 3-power motor, 4-motor power analyzer, 5-drill rod rotation speed sensor, 6-drill rod torque sensor, 7-shaft coupler, 8-drill bit, 9-dust cover, 10-water pipe, 11-flow controller, 12-water pump, 13-pressure chamber, 14-driving device, 1501-motor roller, 1502-driving roller, 16-chain, 17-displacement sensor, 18-wheel rail, 19-walking stopping device, 20-water collecting tank, 21-water drainage channel, 22-pressure chamber bracket, 23-base, 24-isolation plate fixer, 25-pressure chamber lining plate, 26-hydraulic bag interface, 27-flexible hydraulic bag, 28-pressure chamber body, 29-isolation plate, 30-drilling preformed hole, 31-dust cover preformed hole and 32-drill through hole.

Detailed Description

To facilitate understanding and practice of the invention by those of ordinary skill in the art, the following detailed description of the invention is provided in connection with the examples, and it is to be understood that the examples described herein are for purposes of illustration and explanation only and are not intended to limit the invention.

The utility model provides a quick collection system of small-size indoor drilling parameter, which comprises a base 23, be provided with wheel rail 18 on the base 23, drive arrangement 14 sets up on wheel rail 18 through

drive roller

1502, 14 one side of drive arrangement offsets with power motor 3's fixing base, another offside of drive arrangement is connected with hydraulic press 2's fixing base, power motor 3 sets up on wheel rail 18 through motor roller 1501, hydraulic press 2 is connected with 1 one end of hydraulic stem, the hydraulic stem 1 other end offsets with the reaction frame, power motor 3's rotation axis passes through shaft coupling 7 and is connected with 8 one end of drill bit, 8 other ends of drill bit extend to in the pressure chamber 13, pressure chamber 13 passes through pressure chamber support 22 and sets up on base 23.

The driving device 14 can adopt an L-shaped plate support, one side of one arm plate of the L-shaped plate support abuts against a fixed seat of the power motor 3, the other side of the arm plate is connected with a fixed seat of the hydraulic machine 2, the power motor 3 and the driving device 14 are respectively arranged on the wheel rail 18 through a motor roller 1501 and a driving roller 1502, and the power motor 3 and the driving device 14 can move along the wheel rail 18. As shown in fig. 1, the hydraulic machine 2 drives the hydraulic rod 1 to extend and retract, and provides rightward power for the L-plate bracket through the reaction frame, so as to push the power motor 3 and the drill bit 8 to advance rightward to provide drilling power, and meanwhile, the drill bit 8 extends into the pressure chamber 13 to perform drilling action on a rock mass in the pressure chamber 13.

The pressure chamber 13 comprises a pressure chamber body 28, the pressure chamber body 28 is cubic, the pressure chamber body 28 is arranged on the base 23 through a pressure chamber support 22, one side of the pressure chamber body 28 facing the drill bit 8 is provided with a drilling preformed hole 30, the drill bit 8 penetrates through the drilling preformed hole 30, the water pump 12 is connected with one end of the water pipe 10, the other end of the water pipe 10 extends into the drilling preformed hole 30, six inner wall surfaces in the pressure chamber body 28 are respectively provided with a flexible hydraulic bag 27, each flexible hydraulic bag 27 is respectively connected with a hydraulic bag interface 26, the flexible hydraulic bags 27 on the inner wall surfaces of the side of the pressure chamber body 28 facing the drill bit 8 are provided with drill bit through holes 32 corresponding to the drilling preformed hole 30, the aperture of each drill bit through hole 32 is larger than that of the drilling preformed hole 30, the adjacent flexible hydraulic bags 27 are separated by a separation plate 29, and the water inlet end of the water drainage channel 21 is communicated with the drilling preformed hole 30.

The utility model provides a small-size indoor drilling parameter quick acquisition device, still establishes the dust cover 9 on drilling preformed hole 30 including the cover, sets up the dust cover preformed hole 31 that corresponds with drilling preformed hole 30 position on the dust cover 9, and drill bit 8 runs through dust cover preformed hole 31, and the play water end of sluicing passageway 21 is located dust cover 9, and the bottom of dust cover 9 is provided with catchment groove 20.

The pressure chamber 13 adopts three-way flexible confining pressure, and the pressure is provided by flexible hydraulic bags 27 in three directions (the pressure applied by a pair of two flexible hydraulic bags 27 arranged at opposite sides forms pressure in one direction). The hydraulic bags 26 in two adjacent directions are blocked from each other by a partition plate 29. The partition plate 29 is fixed to the partition plate holder 24, and the partition plate 29 from three directions is intersected at each focal point, and is fixed to the partition plate holder 24, and the partition plate holder 24 is fixed to the inner wall of the pressure chamber body 28. Confining pressure is provided by liquid that is constantly injected from hydraulic bladder port 26. The diameter of the drill through-hole 32 is larger than that of the drill reserve hole 30 to facilitate the passage of the drill 8 through the drill reserve hole 30. In operation, a rock sample is placed within the area enclosed by the three flexible hydraulic bladders 27. The drainage channel 21 is used for draining cooling water of the drill bit.

The water pump 12 is used for cooling the drill bit 8, cleaning rock debris and inhibiting dust. The water pump 12 is connected to a flow controller 11, and the flow controller 11 is used to monitor the flow change of the water pump 12. A controlled flow rate was used in a set of experiments because the flow rate had an effect on the temperature of the drill bit 8 and the amount of cuttings in the borehole.

The dust cover 9 is used for controlling the splashing of the rock debris and the cooling water, and the water in the water drainage channel 21 is also collected into the water collection groove 20 of the dust cover 9. And (5) uniformly treating after the experiment is finished.

A drill rod rotating speed sensor 5 and a drill rod torque sensor 6 are arranged on a rotating shaft of the power motor 3, the water pump 12 is connected with the flow controller 11, the hydraulic machine 2 is connected with the hydraulic sensor, and the power motor 3 is connected with the motor power analyzer 4.

The power motor 3 is started, the drill bit 8 starts to rotate, and the motor power analyzer 4 can record data such as power, current and voltage of the power motor 3 in real time. The drill rod torque sensor 6 and the drill rod rotating speed sensor 5 are responsible for recording the drilling torque and rotating speed in real time. And matching the motor power analyzer 4 according to the recorded torque and rotating speed data, and adjusting the power of the power motor 3 by the motor power analyzer 4 to realize a working mode of constant torque and constant rotating speed. The hydraulic pressure sensor may measure the hydraulic pressure of the hydraulic machine 2, thereby obtaining the drilling pressure. In the drilling process, the hydraulic machine 2 generates transverse thrust to the power motor 3 through the hydraulic rod 1 to serve as drilling pressure.

The driving device 14 is provided with a driving motor, a rotating shaft of the driving motor is fixedly sleeved with a driving gear, the top of the wheel rail 18 is provided with a chain 16 along the extending direction of the wheel rail 18, and the driving gear is meshed with the chain 16.

The driving motor, the driving gear and the chain 16 are used as auxiliary pushing devices, when the hydraulic machine 2 does not work, the driving gear can be driven to rotate through the driving motor, the driving gear is meshed with the chain 16, the driving device 14 is driven to push rightwards, the power motor 3 and the drill bit 8 are further pushed, and rightwards drilling force is provided for the drill bit 8.

The power motor 3 is provided with a displacement sensor 17, and the end part of the wheel rail 18 is provided with a baffle sheet matched with the displacement sensor 17.

The displacement sensor 17 monitors the distance between the displacement sensor 17 and the blocking piece, and then obtains the displacement information of the power motor 3.

The wheel rail 18 is also provided with a running stop device 19. In order to prevent the drill bit 8 from damaging the pressure chamber 13 after drilling through the sample, a travel stop device 19 is provided, the position of which is set according to the drilling depth, and the power motor 3 is forcibly stopped to continue traveling rightward. The walking stopping device 19 can be a travel switch, when the power motor 3 travels rightmost to the right stroke point, the power motor 3 touches the travel switch, and the travel switch outputs a control signal to control the hydraulic machine 2 or the driving motor to stop working, so that the condition that the drill bit 8 damages the pressure chamber 13 after drilling through the sample is prevented.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a quick collection system of small-size indoor drilling parameter, including base (23), a serial communication port, be provided with wheel rail (18) on base (23), drive arrangement (14) set up on wheel rail (18) through drive roller (1502), drive arrangement (14) one side offsets with the fixing base of driving motor (3), another offside of drive arrangement (14) is connected with the fixing base of hydraulic press (2), driving motor (3) set up on wheel rail (18) through motor gyro wheel (1501), hydraulic press (2) are connected with hydraulic stem (1) one end, the hydraulic stem (1) other end offsets with the reaction frame, the rotation axis of driving motor (3) passes through coupling (7) and is connected with drill bit (8) one end, the drill bit (8) other end extends to in pressure chamber (13), pressure chamber (13) pass through pressure chamber support (22) and set up on base (23).

2. The small-sized indoor drilling parameter rapid acquisition device according to claim 1, wherein the pressure chamber (13) comprises a pressure chamber body (28), the pressure chamber body (28) is cubic, the pressure chamber body (28) is arranged on a base (23) through a pressure chamber bracket (22), one side of the pressure chamber body (28) facing the drill bit (8) is provided with a drilling reserved hole (30), the drill bit (8) penetrates through the drilling reserved hole (30), the water pump (12) is connected with one end of the water pipe (10), the other end of the water pipe (10) extends into the drilling reserved hole (30), six inner wall surfaces in the pressure chamber body (28) are respectively provided with flexible hydraulic bags (27), each flexible hydraulic bag (27) is respectively connected with a hydraulic bag interface (26), the flexible hydraulic bags (27) on the inner wall surface of one side of the pressure chamber body (28) facing the drill bit (8) are provided with a through hole (32) corresponding to the drilling reserved hole (30), the aperture of the drill through hole (32) is larger than that of the drilling preformed hole (30), the adjacent flexible hydraulic bags (27) are separated by the partition plate (29), and the water inlet end of the water drainage channel (21) is communicated with the drilling preformed hole (30).

3. The small indoor drilling parameter rapid acquisition device according to claim 2, further comprising a dust cover (9) covering the drilling preformed hole (30), wherein the dust cover (9) is provided with a dust cover preformed hole (31) corresponding to the drilling preformed hole (30), the drill bit (8) penetrates through the dust cover preformed hole (31), the water outlet end of the water drainage channel (21) is located in the dust cover (9), and the bottom of the dust cover (9) is provided with a water collection tank (20).

4. The small-sized indoor drilling parameter rapid acquisition device according to claim 3, characterized in that a drill rod rotation speed sensor (5) and a drill rod torque sensor (6) are arranged on a rotation shaft of the power motor (3), a water pump (12) is connected with a flow controller (11), a hydraulic machine (2) is connected with a hydraulic sensor, and the power motor (3) is connected with a motor power analyzer (4).

5. The small-sized indoor drilling parameter rapid acquisition device according to claim 4, wherein a driving motor is arranged on the driving device (14), a driving gear is fixedly sleeved on a rotating shaft of the driving motor, a chain (16) is arranged at the top of the wheel rail (18) along the extending direction of the wheel rail (18), and the driving gear is meshed with the chain (16).

6. The small-sized indoor drilling parameter rapid acquisition device according to claim 4, characterized in that a displacement sensor (17) is arranged on the power motor (3), and a baffle plate matched with the displacement sensor (17) is arranged at the end part of the wheel rail (18).

7. The device for rapidly acquiring the small indoor drilling parameters as claimed in claim 4, wherein the wheel rail (18) is further provided with a walking stop device (19).