A kind of anti-clogging rotary bored pile drilling and cleaning machine

Abstract

The present invention discloses an anti-clogging rotary bored pile drilling and cleaning machine, which relates to the technical field of bored pile drilling and cleaning machines, and comprises a support frame, wherein eight first vibration sensors are installed in a circular array in the circular inner wall in the middle of the top of the support frame, and a ball head body is installed at the end of each first vibration sensor, and also comprises a soil discharge screw. The anti-clogging rotary bored pile drilling and cleaning machine generates a signal of corresponding intensity by installing the first vibration sensors on the support frame in the form of eight groups of circular array distribution, combining the front and back order and force of the soil discharge screw contacting the first vibration sensors in non-passing positions, to assist the control block in roughly judging the specific obstructed position of the soil discharge screw in the borehole, so that subsequent staff can estimate the soil condition of the working soil based on these feedback data.

Description

Technical Field

[0001] The invention relates to the technical field of bored pile hole cleaning machines, in particular to an anti-clogging rotary excavation bored pile hole cleaning machine. Background Art

[0002] A bored pile is a pile made by forming a hole in place and pouring concrete or reinforced concrete. Commonly used bored piles are bored piles, which are formed by forming a hole in place and pouring concrete using equipment such as spiral drills and submersible drills. Among them, the spiral drill is also called a rotary bored pile drilling and cleaning machine, which is suitable for clay, sand and artificial fill above the groundwater level. The drilled soil blocks rise along the spiral blades on the drill rod and are discharged out of the hole. The hole diameter is about 300mm and the drilling depth is 8-12m. The drill rod can be selected according to the soil quality and water content. The submersible drill is suitable for clay, sand, silt and silty soil, etc., especially for forming holes in soil with a high groundwater level. When drilling, mud is used to protect the wall to prevent the hole from collapsing. Clean water is used to drill in clay to make a mud wall. The prepared mud should be injected into the sand for drilling, and the mud circulation is used to remove the soil debris under the drilling. After drilling to the required depth, the hole should be cleaned to remove the soil debris sunk at the bottom of the hole and reduce the settlement of the pile.

[0003] Traditional bored pile drilling equipment is less efficient in high-density soil and is prone to clogging, low soil discharge efficiency, and long stagnation time during construction, which affects the overall construction efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: an anti-clogging rotary bored pile drilling and cleaning machine, comprising a support frame, eight first vibration sensors are installed in a circular array in the circular inner wall in the middle of the top of the support frame, and a ball head body is installed at the end of each of the first vibration sensors, and the ball head body is used to provide protection for the end of the first vibration sensor to prevent the first vibration sensor from being directly damaged, and is also used for limiting and guiding functions;

[0005] It also includes a soil discharge screw, which is installed in the middle of the support frame. The soil discharge screw is made of a solid material as a whole and is responsible for transporting the excavated soil to the ground. The soil discharge screw includes a rotary digging rod installed in the middle of the support frame, and four first reverse scale blocks are spirally installed on the surface of the rotary digging rod near the top, and a joint rod body is connected to the bottom of the rotary digging rod, and four second reverse scale blocks are spirally installed on the surface of the rotary digging rod near the bottom;

[0006] A driving device, which is threadedly mounted on the top of the support frame, is used to provide sufficient power to drive the soil discharging screw to rotate, ensuring that the soil discharging screw does not generate excessive vibration during operation. The driving device includes a gear box threadedly mounted on the top of the support frame, and a driving motor is assembled on the top of the gear box. The driving motor is installed with a transmission shaft through the gear box. A control block is installed on the driving motor to receive real-time feedback from a vibration sensor, determine whether there is soil blockage, and generate corresponding control signals to quickly take corresponding measures; wherein the transmission shaft is used to connect the driving device and the soil discharging screw to transmit power to rotate the soil discharging screw;

[0007] A base assembly, which is installed at the bottom end of the support frame, and the support frame and the base assembly jointly provide support and stability. The base assembly includes a positioning base installed at the bottom end of the support frame, a hoop ring is fixedly installed in the middle of the positioning base, and three slots are opened on the positioning base in an equilateral triangle, and a sealing plug is embedded in the slot;

[0008] A soil discharge pipe is installed on a base assembly, and includes a soil bucket threadedly installed on a positioning base. An expansion portion is provided on one end of the soil bucket close to the positioning base. The expansion portion corresponds to the outer side of the hoop ring, and a torsion motor is installed on the top of the expansion portion.

[0009] Preferably, the second reverse scale block has the same structure as the first reverse scale block and is both installed in a counterclockwise direction on the rotary drilling rod. A reinforcing plate is fixedly connected to the joint rod body to improve the structural strength of the bottom of the rotary drilling rod. A drill bit body is installed at the bottom of the joint rod body, and spiral drill cutters are provided on the surface of the drill bit body. These spiral drill cutters are similar to reversely installed scrapers and have soil retaining and bulldozing functions. Water holes are opened on the surface of the drill bit body, and a hydraulic assembly is installed inside the rotary drilling rod. The bottom of the hydraulic assembly passes through the joint rod body and extends to the inside of the drill bit body to communicate with the water holes.

[0010] Preferably, the water pressure assembly includes an inner tube installed inside the rotary drilling rod, and a right hemisphere and a left hemisphere are assembled on the inner side of the inner tube, the right hemisphere is installed below the left hemisphere, and the surfaces of the right hemisphere and the left hemisphere are provided with notches in a left-right offset state, and the tops of both are arranged in a curved surface shape, and the right hemisphere and the left hemisphere are both used to guide water flow, and a thin rod group 1 is installed on the side of the right hemisphere, and a thin rod group 2 is installed on the side of the left hemisphere, and the thin rod group 2 has the same structure as the thin rod group 1, and the thin rod group 2 is arranged vertically and cross-wise to the plane where the thin rod group 1 is located.

[0011] Preferably, a clamp is installed on the right-facing hemisphere, and the top and bottom of the clamp are connected to folding springs. A sleeve is fixedly installed on the side of the clamp facing away from the right-facing hemisphere, and the sleeve is sleeved on the thin rod group one. A stop pin is installed on the pin on the thin rod group one, and the sleeve is arranged between the two stop pins. The stop pin is used to limit the lifting and lowering movement of the sleeve on the thin rod group one.

[0012] Preferably, a transmission shaft is assembled at the top of the soil-draining screw, a head pipe is threadedly installed on the top end of the transmission shaft, the main body of the hydraulic assembly is installed inside a long rod cavity composed of a rotary drilling rod and a transmission shaft, and the head pipe is connected to the top of the built-in tube through a transmission shaft.

[0013] Preferably, an inner ring is installed on the inner side of the hoop ring, a sleeve is installed on the positioning base through a slot, a base column is installed on the bottom end pin of the sleeve, and the base column can be installed on the positioning base through the slot, an arc-shaped groove is opened on the surface of the sleeve, and a cleaning motor is assembled on the inner side of the sleeve. The cleaning motor is responsible for cleaning the soil that may remain on the soil discharge spiral when the rotary drilling rod is pushed in reverse to prevent blockage.

[0014] Preferably, the inner ring member includes an inner ring body assembled on the inner side of the hoop ring, the inner wall of the inner ring body is provided with spiral ridges in a circular array, the outer wall of the inner ring body is provided with rubber strips in a circular array, the outer wall of the inner ring body is provided with telescopic elastic rods in a circular array, the telescopic elastic rods and the rubber strips are staggered on the inner ring body, a second vibration sensor is embedded on the inner side of one end of the telescopic elastic rod away from the inner ring body, and is used to detect soil density and vibration by being installed near a hole in the ground through which the soil removal auger drills into the soil, and the end of the telescopic elastic rod away from the inner ring body is threadedly installed on the inner wall of the hoop ring.

[0015] Preferably, the surface of the cleaning motor is connected with a positioning sleeve rod and a bracket rod, the positioning sleeve rod and the bracket rod are both staggered and connected to the cleaning motor in an equilateral triangle shape, an inclined plate scraper is threadedly installed on the bracket rod, and the inclined plate scraper is divided into a front side with a cutting edge and a back side without a cutting edge. The inclined plate scraper is used to scrape off the soil excavated by the rotary drilling rod, and three groups of support members are installed in a circular array around the cleaning motor, and the support members are assembled on the back side of the inclined plate scraper;

[0016] The support member includes a rib plate that is fitted and assembled on the back of the inclined plate scraper, and an arc-shaped recess is provided at one end of the rib plate close to the cleaning motor. The rib plate is mounted in an engaging manner with the sleeve shell through the arc-shaped recess and the arc-shaped groove. A first screw rod and a second screw rod are threadedly mounted on a side of the rib plate away from the cleaning motor, and the second screw rod is mounted on the end away from the arc-shaped recess. A flexible spacer is threadedly mounted on the side of the rib plate facing the inclined plate scraper through the second screw rod, and the flexible spacer is tightly fitted on the back of the first screw rod to provide strong support for the first screw rod. The rib plate can also be threadedly mounted on the cleaning motor through the first screw rod, wherein the positioning sleeve rod passes through the sleeve shell and extends into the inner side of the arc-shaped groove, and the first screw rod is threadedly connected to the positioning sleeve rod on the inner side of the arc-shaped groove through the rib plate.

[0017] Preferably, the end of the expansion portion away from the positioning base is connected to a hose telescopic portion, the hose telescopic portion can be freely telescopic, and the end of the hose telescopic portion away from the earth bucket is connected to a double cavity; the double cavity includes a cavity shell connected to the hose telescopic portion, and two cables are symmetrically connected to the inner wall of the cavity shell, and the other ends of the two cables are connected to the inner wall of the earth bucket. In the initial state, the cables are in a relaxed state, used to connect the earth bucket and the cavity shell to enhance the connection strength, and a ring disk is symmetrically installed on the cavity shell in an upper and lower shape, and a long connecting plate is installed on the ring disk, and the end of the long connecting plate away from the ring disk is hinged on the earth bucket, wherein the torsion motor at the top of the earth bucket is connected to the long connecting plate at the top of the cavity shell, and the cavity shell is swingably installed with the earth bucket through the cooperation of the long connecting plate on the ring disk and the torsion motor, and a diverter column is fixedly connected to the inner middle part of the cavity shell, and the diverter column is installed at the end away from the earth bucket.

[0018] Preferably, the input end of the control block is electrically connected to the output ends of the driving motor, the first vibration sensor, the second vibration sensor, the cleaning motor, and the torsion motor, respectively. At the same time, the output end of the control block is also electrically connected to the input ends of the driving motor, the first vibration sensor, the second vibration sensor, the cleaning motor, and the torsion motor, respectively, to achieve control of the driving motor, the cleaning motor, and the torsion motor, and to achieve reception and feedback of signals from the first vibration sensor and the second vibration sensor.

[0019] The present invention provides an anti-clogging rotary bored pile drilling and cleaning machine, which has the following beneficial effects:

[0020] 1. The anti-clogging rotary bored pile drilling and cleaning machine has a transmission shaft located between the soil discharge screw and the drive device. Through the connection with the drive device, the power is transmitted to rotate the soil discharge screw; the support frame surrounds the soil discharge screw to ensure that the soil discharge screw remains stable during operation; the soil discharge pipe is used in conjunction with the cleaning motor, and the two are installed together at the end of the soil discharge screw exposed to the ground, responsible for transporting the excavated soil to the ground. Through such a structural design and layout, the various components of the drilling and cleaning machine are closely integrated. The soil discharge screw is driven by the drive device, the support frame provides stable support, and the soil discharge pipe cooperates with the cleaning motor to transport the soil layer to the ground. The synergistic effect of the entire soil discharge system ensures an efficient and reliable soil discharge process, which is suitable for bored pile drilling operations.

[0021] 2. The anti-clogging rotary drilling and boring cleaning machine for bored piles can impact the right hemisphere and the left hemisphere to bounce up and down inside the built-in tube by intermittently flowing high-pressure water into and out of the built-in tube, thereby causing a certain slight vibration to the rotary drilling rod inside the rotary drilling rod, so as to assist the rotary drilling rod in generating slight vibration from the inside to the outside, thereby preventing the soil from fitting tightly on the rotary drilling rod, and facilitating the soil to be quickly scraped off by the cleaning motor when the rotary drilling rod is rotated counterclockwise.

[0022] 3. The anti-clogging rotary bored pile drilling and cleaning machine can manually select the installation positions of the cleaning motor and the soil discharge pipe on the positioning base by installing the cleaning motor on the inner side of the slot with the help of the base column, so as to change the position where the soil is guided by the soil discharge pipe, and can manually change the specific position where the soil is accumulated around the positioning base; when the base column is installed inside other slots, the slots can be blocked by plugs to prevent the soil from directly blocking the slots.

[0023] 4. The anti-clogging rotary bored pile drilling and cleaning machine is used in conjunction with a cleaning motor through a soil discharge pipe. The two are installed together at the end of the soil discharge spiral exposed to the ground, and are responsible for transporting the excavated soil to the ground; it can be adaptively installed along the three azimuths of the positioning base, and the soil cleaning efficiency on the surface of the soil discharge spiral can be regulated by increasing or decreasing the number of installed soil discharge pipes and cleaning motors to ensure smooth soil discharge channels.

[0024] 5. The anti-clogging rotary bored pile drilling and cleaning machine uses the inclined plate scraper on the cleaning motor when not in use, wherein the two inclined plate scrapers are always on both sides of the soil discharge spiral. Thus, when the cleaning motor is idle, it can ensure that the normal drilling work of the soil discharge spiral is not disturbed by the cleaning motor.

[0025] 6. The anti-clogging rotary excavation bored pile drilling and cleaning machine can guide the soil on the soil discharge spiral to the ground near the support frame in time through the use of a soil discharge pipe on one side of the cleaning motor and a cleaning motor. When the control block activates the cleaning motor, the cleaning motor can drive the double cavity to swing left and right, and divide the soil scraped into two parts on the left and right. The two ejection ports on the inner side of the cavity shell with the diverter column as the dividing line can divide the soil into two places for guidance. The excavated soil can be transported to a place far away from the positioning base for stacking, so as to avoid the accumulation of soil near the positioning base and affect the normal use of the positioning base and the drilling and cleaning machine.

[0026] 7. The anti-clogging rotary bored pile drilling and cleaning machine is equipped with a cleaning motor near the soil discharge screw through a positioning base. The cleaning motor is used to clean the soil that may be adhered to the soil discharge screw while the soil discharge screw is pushed in reverse, thereby automatically cleaning the soil adhered to the soil discharge screw, reducing the burden of the soil discharge screw's re-drilling work and ensuring the drilling efficiency of the soil discharge screw when drilling again.

[0027] 8. The anti-clogging rotary bored pile drilling and cleaning machine realizes the working principle of the anti-clogging structure through the coordinated use of the driving device, the base assembly and the soil discharge pipe with the soil discharge spiral, so that the soil discharge spiral of the drilling and cleaning machine can more flexibly cope with the blockage situation under different geological conditions, ensuring the continuous and efficient completion of the bored pile drilling operation.

[0028] 9. The anti-clogging rotary bored pile drilling and cleaning machine detects the vibration of the soil discharge screw at the transmission part between the soil discharge screw and the transmission shaft through the first vibration sensor installed on the support frame. As a second set of backup sensors for the second vibration sensor close to the ground, and a calibration structure for the signal feedback of the second vibration sensor, when the second vibration sensor contacts the vibration of the soil discharge screw, the first vibration sensor can also contact the vibration of the soil discharge screw, and transmit the signals to the control block for feedback and comparison calibration. The first vibration sensors installed on the support frame are distributed in the form of eight groups of circular arrays, and the order of contact between the soil discharge screw and the first vibration sensor in the non-passing position, as well as the force, are combined to generate signals of corresponding strength to assist the control block in roughly judging the specific obstructed position of the soil discharge screw in the borehole, so that subsequent staff can estimate the soil condition of the working soil based on these feedback data. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the external structure of an anti-clogging rotary bored pile drilling and cleaning machine of the present invention;

[0030] Figure 2It is a schematic diagram of the structure of the soil discharge screw and the transmission shaft of the present invention;

[0031] Figure 3 It is a schematic diagram of the local structure of the soil discharge spiral of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the joint rod body and the drill bit body of the present invention;

[0033] Figure 5 It is a structural schematic diagram of the water pressure assembly of the present invention;

[0034] Figure 6 It is a schematic structural diagram of the right-facing hemisphere of the present invention;

[0035] Figure 7 It is a schematic diagram of the partial assembly structure of the driving device and the supporting frame of the present invention;

[0036] Figure 8 It is a schematic diagram of the structure of the positioning base and the soil discharge spiral of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of the inner ring member of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the casing and the cleaning motor of the present invention;

[0039] Fig.11 It is a schematic diagram of the structure of the casing and the base column of the present invention;

[0040] Fig.12 It is a structural schematic diagram of the support member and the cleaning motor of the present invention;

[0041] Fig.13 It is a structural schematic diagram of the support member of the present invention;

[0042] Fig.14 It is a structural schematic diagram of the soil discharge pipeline of the present invention;

[0043] Fig.15 It is a schematic diagram of the structure of the double cavity of the present invention.

[0044] In the figure: 1, support frame; 11, first vibration sensor; 12, ball head body; 2, soil discharge spiral; 21, rotary digging rod; 22, first reverse scale block; 23, joint rod body; 24, second reverse scale block; 25, reinforcement plate; 26, drill bit body; 27, water permeable hole; 28, water pressure component; 281, built-in tube; 282, right hemisphere; 283, thin rod group one; 284, left hemisphere; 285, thin rod group two; 801, clamp body; 802, folding spring; 803, sleeve body; 804, stop pin; 3, transmission shaft; 31, head pipe; 4, driving device; 41, gear box; 42, driving motor; 43, control block; 5, base assembly; 51, positioning base; 52, stirrup ring; 53, slot; 54, Plug; 55, inner ring; 551, inner ring body; 552, spiral ridge; 553, rubber strip; 554, telescopic spring rod; 555, second vibration sensor; 56, casing; 561, arc groove; 57, base column; 58, cleaning motor; 581, positioning sleeve rod; 582, bracket rod; 583, inclined plate scraper; 59, support; 591, rib plate; 592, arc notch; 593, first screw rod; 594, flexible spacer; 595, second screw rod; 6, soil discharge pipe; 61, soil bucket; 62, edge expansion part; 63, torsion motor; 64, hose telescopic part; 65, double cavity; 651, cavity shell; 652, cable; 653, ring plate; 654, long connecting plate; 655, diverter column. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0046] The first embodiment, as Figures 1 to 15 As shown, the present invention provides a technical solution: an anti-clogging rotary bored pile drilling and cleaning machine, comprising a support frame 1, eight first vibration sensors 11 are installed in a circular array in the circular inner wall in the middle of the top of the support frame 1, and a ball head body 12 is installed at the end of each first vibration sensor 11. The ball head body 12 is used to provide protection for the end of the first vibration sensor 11 to prevent the first vibration sensor 11 from being directly damaged, and is also used for limiting and guiding functions;

[0047] The soil discharge screw 2 is also included. The soil discharge screw 2 is installed in the middle position of the support frame 1. The soil discharge screw 2 is made of a solid material as a whole and is responsible for transporting the excavated soil to the ground. The soil discharge screw 2 includes a rotary digging rod 21 installed in the middle position of the support frame 1. Four first reverse scale blocks 22 are spirally installed on the surface of the rotary digging rod 21 near the top. A joint rod body 23 is connected to the bottom of the rotary digging rod 21. Four second reverse scale blocks 24 are spirally installed on the surface of the rotary digging rod 21 near the bottom. Among them, by setting the first reverse scale block 22 and the second reverse scale block 24, the soil can be intercepted on the rotary digging rod 21 when the rotary digging rod 21 is rotating clockwise or counterclockwise, and the rotary digging rod 21 is assisted to rotate and guide the soil out of the drill hole, which can effectively prevent the backflow of soil on the rotary digging rod 21 during the clockwise rotation drilling process of the rotary digging rod 21, and can provide thrust to assist the soil in being guided out of the rotary digging rod 21 when the rotary digging rod 21 is rotating counterclockwise, thereby accelerating the soil guidance;

[0048] The driving device 4 is threadedly mounted on the top of the support frame 1. The driving device 4 is used to provide sufficient power to drive the soil discharging screw 2 to rotate, ensuring that the soil discharging screw 2 does not generate excessive vibration during operation. The driving device 4 includes a gear box 41 threadedly mounted on the top of the support frame 1. A driving motor 42 is assembled on the top of the gear box 41. The driving motor 42 is installed with the transmission shaft 3 through the gear box 41. A control block 43 is installed on the driving motor 42 for receiving real-time feedback from a vibration sensor, determining whether there is soil blockage, and generating corresponding control signals to quickly take corresponding measures; wherein the transmission shaft 3 is used to connect the driving device 4 and the soil discharging screw 2 to transmit power to rotate the soil discharging screw 2;

[0049] A base assembly 5, which is installed at the bottom end of the support frame 1. The support frame 1 and the base assembly 5 provide support and stability. The base assembly 5 includes a positioning base 51 installed at the bottom end of the support frame 1. A hoop ring 52 is fixedly installed in the middle of the positioning base 51. Three card slots 53 are opened on the positioning base 51 in the shape of an equilateral triangle. A sealing plug 54 is embedded in the card slot 53.

[0050] The soil discharge pipe 6 is installed on the base assembly 5. The soil discharge pipe 6 includes a soil bucket 61 threadedly installed on the positioning base 51. The soil bucket 61 is provided with an expansion part 62 on one end side close to the positioning base 51. The expansion part 62 corresponds to the outer side of the hoop ring 52, and a torsion motor 63 is installed on the top of the expansion part 62.

[0051] A transmission shaft 3 is assembled at the top of the soil discharge screw 2, and a head pipe 31 is threadedly installed on the top of the transmission shaft 3. The main body of the hydraulic assembly 28 is installed inside a long rod cavity composed of the rotary drilling rod 21 and the transmission shaft 3. The head pipe 31 is connected to the top of the built-in tube 281 through the transmission shaft 3.

[0052] The input end of the control block 43 is electrically connected to the output ends of the drive motor 42, the first vibration sensor 11, the second vibration sensor 555, the cleaning motor 58, and the torsion motor 63, respectively. At the same time, the output end of the control block 43 is also electrically connected to the input ends of the drive motor 42, the first vibration sensor 11, the second vibration sensor 555, the cleaning motor 58, and the torsion motor 63, respectively, to achieve control of the drive motor 42, the cleaning motor 58, and the torsion motor 63, and to achieve reception and feedback of signals from the first vibration sensor 11 and the second vibration sensor 555.

[0053] When in use, the hole cleaning machine is assembled on the front end of the drilling vehicle, the high-pressure water pipe is connected to the top of the head pipe 31, and multiple high-pressure water jets are intermittently injected into the hydraulic assembly 28; then the hole cleaning machine is installed as Figure 1 It is vertically positioned at the point where the hole is to be drilled and piled; then, by activating the driving motor 42, the transmission shaft 3 is driven to rotate with the help of the gear box 41, so that the transmission shaft 3 drives the soil discharge screw 2 to perform a vertical downward clockwise drilling motion, and the drilling of the soil discharge screw 2 is utilized to realize the rotary drilling construction of the cast-in-place pile. After rotary drilling to a specified depth, the driving device 4 drives the transmission shaft 3 and the soil discharge screw 2 to perform a counterclockwise drilling motion together, so that the soil discharge screw 2 is pushed in the reverse direction for a short distance to push the blocked soil out of the lumen of the soil discharge borehole, and completes the retreat action of the soil discharge screw 2 from the borehole, thereby completing the automatic pushing out of the blocked soil.

[0054] When the drill bit body 26 drills downward, water flows out intermittently from the water permeable hole 27, and a self-made mud wall can be formed during the downward drilling of the soil auger 2 itself, automatically reinforcing the inner wall of the column pile of the drilled hole.

[0055] When the soil removal spiral 2 is blocked in the borehole or encounters a large soil density and is difficult to drill and trembles, the collision between the rotary drilling rod 21 and the inner ring 55 during the continued drilling operation after the soil removal spiral 2 is blocked can be used to transmit the signal to the control block 43 with the help of the signal generated by the second vibration sensor 555 when it is squeezed and vibrated. Then, after the control block 43 judges based on the collected signal, a corresponding control signal is generated to control the drive motor 42 to run in the opposite direction, thereby driving the soil removal spiral 2 and the transmission shaft 3 to rotate counterclockwise to guide the soil blocked on the soil removal spiral 2 out of the borehole; and during this period, the cleaning motor 58 can also be controlled by the control block 43 to rotate counterclockwise to clean the soil on the soil removal spiral 2, and the soil is uniformly guided to one side of the support frame 1 by the soil removal pipe 6 for accumulation; through the above operation, the soil removal spiral 2 has the ability to rotate reversibly, and when it is sensed that the soil density is large or there are signs of blockage in the soil cavity formed by the soil removal borehole, the problem can be solved by changing the rotation direction.

[0056] Among them, by installing the inner ring part 55 near the soil discharge screw 2, the second vibration sensor 555 installed on the inner ring part 55 can be effectively utilized to monitor the dynamic changes of the soil discharge screw 2 in the borehole in real time. Once the soil discharge screw 2 is blocked during drilling or encounters a state of high soil density, the soil discharge screw 2 itself encounters a large resistance and fails to stop in time, which will cause the soil discharge screw 2 to vibrate or shake locally, and may come into contact with the inner wall of the inner ring body 551, thereby successfully triggering the second vibration sensor 555 installed between the hoop ring 52 and the inner ring body 551, which can detect the soil density and the vibration of the soil discharge screw 2 in time; and through the real-time feedback of the second vibration sensor 555, the control block 43 can determine whether there is soil blockage and take corresponding measures quickly.

[0057] Among them, the first vibration sensor 11 installed on the support frame 1 is used to detect the vibration of the soil discharge screw 2 at the transmission part between the soil discharge screw 2 and the transmission shaft 3. It serves as a second set of backup sensors for the second vibration sensor 555 close to the ground, as well as a calibration structure for the signal feedback of the second vibration sensor 555. When the second vibration sensor 555 contacts the tremor of the soil discharge screw 2, the first vibration sensor 11 can also contact the vibration of the soil discharge screw 2, and transmit the signals to the control block 43 for feedback and comparison calibration. And the first vibration sensors 11 installed on the support frame 1 are distributed in the form of eight groups of circular arrays, combined with the order of contact between the soil discharge screw 2 and the first vibration sensor 11 in the non-passing position, and the magnitude of the force, to generate a signal of corresponding strength, to assist the control block 43 to roughly judge the specific obstructed position of the soil discharge screw 2 in the borehole, so that subsequent staff can estimate the soil condition of the working soil based on these feedback data.

[0058] The working environment can be monitored in real time through various vibration sensors, and the signals are transmitted to the control block 43. The control block 43 automatically adjusts the movement of the soil-discharging screw 2 according to the feedback of the sensor, including counterclockwise rotation and reverse propulsion, to ensure continuous and smooth operation during the bored pile drilling process. The effective combination of the control block 43 and the soil-discharging pipe 6 ensures that the soil-discharging screw 2 is effectively cleaned when necessary, further reducing the possible risk of blockage.

[0059] The transmission shaft 3 is located between the soil discharging screw 2 and the driving device 4. Through the connection with the driving device 4, the power is transmitted to rotate the soil discharging screw 2. The support frame 1 surrounds the soil discharging screw 2 to ensure that the soil discharging screw 2 remains stable during operation. The soil discharging pipe 6 is used in conjunction with the cleaning motor 58. The two are installed together at the end of the soil discharging screw exposed to the ground, responsible for transporting the excavated soil to the ground. Through such a structural design and layout, the various components of the drilling and cleaning machine are tightly integrated. The soil discharging screw 2 is driven by the driving device 4 to rotate, and the support frame 1 provides stable support. The soil discharging pipe 6 cooperates with the cleaning motor 58 to transport the soil layer to the ground. The synergistic effect of the entire soil discharging system ensures an efficient and reliable soil layer discharge process, which is suitable for bored pile drilling operations.

[0060] The second embodiment is based on the first embodiment. Figures 1 to 6 As shown, the second reverse scale block 24 has the same structure as the first reverse scale block 22, and both are installed in a counterclockwise direction on the rotary digging rod 21. A reinforcing plate 25 is fixedly connected to the joint rod body 23 to improve the structural strength of the bottom of the rotary digging rod 21. A drill bit body 26 is installed at the bottom of the joint rod body 23. The surface of the drill bit body 26 is provided with spiral drill cutters. These spiral drill cutters are similar to reversely installed scrapers and have soil retaining and bulldozing functions. A water permeable hole 27 is opened on the surface of the drill bit body 26. A hydraulic component 28 is installed inside the rotary digging rod 21. The bottom of the hydraulic component 28 passes through the joint rod body 23 and extends to the inner side of the drill bit body 26 to communicate with the water permeable hole 27.

[0061] The hydraulic assembly 28 includes an internal pipe 281 installed inside the rotary drilling rod 21, and a right hemisphere 282 and a left hemisphere 284 are assembled inside the internal pipe 281. The right hemisphere 282 is installed below the left hemisphere 284. The surfaces of the right hemisphere 282 and the left hemisphere 284 are staggered left and right and have notches for providing drainage cavities for downward transportation of water flow. The tops of both are curved to weaken the impact of high-pressure water flow, and the impact force of the water flow on the right hemisphere 282 and the left hemisphere 284 is reduced. The double weakening of the degree can ensure that the water flows out smoothly from the water-permeable hole 27, will not cause secondary impact damage to the inner wall of the soil in the borehole, and can promote the formation of the soil pipe wall; the right hemisphere 282 and the left hemisphere 284 are both used to guide the water flow, and a thin rod group 1 283 is installed on the side of the right hemisphere 282, and a thin rod group 285 is installed on the side of the left hemisphere 284. The thin rod group 285 has the same structure as the thin rod group 1 283, and the plane where the thin rod group 285 and the thin rod group 1 283 are located is vertically cross-arranged.

[0062] A clamp 801 is installed on the right hemisphere 282, and the top and bottom of the clamp 801 are connected to a folding spring 802. A sleeve 803 is fixedly installed on the side of the clamp 801 away from the right hemisphere 282. The sleeve 803 is sleeved on the thin rod group 283. The thin rod group 283 has a stop pin 804 installed on the pin. The sleeve 803 is set between the two stop pins 804. The stop pin 804 is used to control the lifting of the sleeve 803 on the thin rod group 283. The descending movement is limited, wherein the clamp body 801 and the folding spring 802 are also installed in the inner wall of the built-in tube 281. That is to say, the right hemisphere 282 is installed on the inner side of the built-in tube 281 by means of the thin rod group 1 283 for elastic limitation, and the left hemisphere 284 is also installed on the inner side of the built-in tube 281 by means of the thin rod group 285 for elastic limitation, and the thin rod group 1 283 and the thin rod group 2 285 are both installed in the inner wall of the built-in tube 281 in an embedded manner.

[0063] When in use, by intermittently flowing high-pressure water into and out of the built-in tube 281, the right hemisphere 282 and the left hemisphere 284 can be impacted to bounce up and down inside the built-in tube 281, thereby causing a certain slight vibration to the rotary digging rod 21 inside the rotary digging rod 21, so as to assist the rotary digging rod 21 in generating slight vibrations from the inside to the outside, thereby preventing the soil from fitting tightly to the rotary digging rod 21, and facilitating the rotary digging rod 21 to be quickly scraped off by the cleaning motor 58 when the rotary digging rod 21 is rotated counterclockwise.

[0064] The third embodiment is based on the first and second embodiments. Figures 8 to 13As shown, an inner ring member 55 is installed on the inner side of the hoop ring 52, a sleeve 56 is installed on the positioning base 51 through a slot 53, a base column 57 is installed on the bottom end pin of the sleeve 56, and the base column 57 can be installed on the positioning base 51 through the slot 53. An arc groove 561 is opened on the surface of the sleeve 56, and a cleaning motor 58 is assembled on the inner side of the sleeve 56. The cleaning motor 58 is responsible for cleaning the soil that may remain on the soil discharge spiral 2 when the rotary drilling rod 21 is pushed in the reverse direction to prevent blockage.

[0065] The inner ring member 55 includes an inner ring body 551 assembled on the inner side of the hoop ring 52, spiral ridges 552 are installed in a circular array on the inner wall of the inner ring body 551, rubber strips 553 are installed in a circular array on the outer wall of the inner ring body 551, and telescopic elastic rods 554 are also installed in a circular array on the outer wall of the inner ring body 551. The telescopic elastic rods 554 and the rubber strips 553 are staggered on the inner ring body 551, and a second vibration sensor 555 is embedded on the inner side of one end of the telescopic elastic rod 554 away from the inner ring body 551. The second vibration sensor 555 is installed near the hole in the ground drilled by the soil discharge screw 2 to detect soil density and vibration. The end of the telescopic elastic rod 554 away from the inner ring body 551 is threadedly installed on the inner wall of the hoop ring 52.

[0066] The surface of the cleaning motor 58 is connected with a positioning sleeve rod 581 and a bracket rod 582. The positioning sleeve rod 581 and the bracket rod 582 are staggered and connected to the cleaning motor 58 in an equilateral triangle. The bracket rod 582 is threadedly installed with an inclined plate scraper 583. The inclined plate scraper 583 is divided into a front side with a cutting edge and a back side without a cutting edge. The front side with a cutting edge is used to easily scrape off the soil attached to the rotary digging rod 21. Three groups of support members 59 are installed in a circular array around the cleaning motor 58. The support members 59 are assembled on the back side of the inclined plate scraper 583.

[0067] The support member 59 includes a rib plate 591 which is assembled on the back of the inclined plate scraper 583. An arc-shaped notch 592 is provided at one end of the rib plate 591 close to the cleaning motor 58. The rib plate 591 is fitted and installed with the casing 56 through the arc-shaped notch 592 and the arc-shaped groove 561. A first screw rod 593 and a second screw rod 595 are threadedly installed on one side of the rib plate 591 away from the cleaning motor 58. The second screw rod 595 is installed at the end away from the arc-shaped notch 592. The rib plate 591 faces the inclined plate. A flexible spacer 594 is threadedly installed on one side of the scraper 583 through the second screw rod 595. The flexible spacer 594 fits tightly on the back side of the first screw rod 593 to provide strong support for the first screw rod 593. The reinforcing plate 591 can also be threadedly installed with the cleaning motor 58 through the first screw rod 593, wherein the positioning sleeve 581 passes through the sleeve shell 56 and extends into the inner side of the arc-shaped groove 561, and the first screw rod 593 is threadedly connected with the positioning sleeve 581 on the inner side of the arc-shaped groove 561 through the reinforcing plate 591.

[0068] When in use, the cleaning motor 58 and the soil discharge pipe 6 can be installed on the inner side of the slot 53 with the help of the base column 57 to manually select the installation position of the cleaning motor 58 and the soil discharge pipe 6 on the positioning base 51, so as to change the position where the soil is guided by the soil discharge pipe 6, and manually change the specific position where the soil is accumulated around the positioning base 51; when the base column 57 is installed inside other slots 53, the slot 53 can be blocked via the plug 54 to prevent the soil from directly blocking the slot 53.

[0069] The soil discharge pipe 6 is used in conjunction with the cleaning motor 58, and the two are jointly installed at the end of the soil discharge spiral exposed to the ground, and are responsible for transporting the excavated soil to the ground; it can be adaptively installed along the three azimuths of the positioning base 51, and the soil cleaning efficiency on the surface of the soil discharge spiral 2 can be regulated by increasing or decreasing the number of installed soil discharge pipes 6 and cleaning motors 58, so as to ensure that the soil discharge channel is unobstructed.

[0070] Among them, when the inclined plate scraper 583 on the cleaning motor 58 is not in use, the two inclined plate scrapers 583 are always on both sides of the soil discharge screw 2. Therefore, when the cleaning motor 58 is idle, it can ensure that the normal drilling work of the soil discharge screw 2 is not disturbed by the cleaning motor 58.

[0071] The fourth embodiment is based on the first, second and third embodiments. Figure 14 to Figure 15 As shown, the end of the expansion portion 62 away from the positioning base 51 is connected to a hose telescopic portion 64, which can be freely telescopic, and the end of the hose telescopic portion 64 away from the earth bucket 61 is connected to a double cavity 65; the double cavity 65 includes a cavity shell 651 connected to the hose telescopic portion 64, and two cables 652 are symmetrically connected to the inner wall of the cavity shell 651, and the other ends of the two cables 652 are connected to the inner wall of the earth bucket 61. In the initial state, the cables 652 are in a relaxed state, which is used to connect the earth bucket 61 and the cavity shell 651 to enhance the connection strength. A ring disk 653 is installed on the cavity shell 651 in a symmetrical shape up and down, and a long connecting plate 654 is installed on the ring disk 653. The end of the long connecting plate 654 away from the ring disk 653 is hinged on the earth bucket 61, wherein the torsion motor 63 on the top of the earth bucket 61 is connected to the long connecting plate 654 on the top of the cavity shell 651. The cavity shell 651 is swingably installed with the earth bucket 61 through the long connecting plate 654 on the ring disk 653 and the torsion motor 63. A diverter column 655 is fixedly connected to the inner middle part of the cavity shell 651, and the diverter column 655 is installed at the end away from the earth bucket 61.

[0072] When in use, the soil discharge pipe 6 is used in conjunction with the cleaning motor 58 on one side of the cleaning motor 58, so that the soil on the soil discharge spiral 2 can be timely guided to the ground near the support frame 1, and the cleaning motor 58 can be activated by the control block 43, so that the double cavity 65 can be driven by the cleaning motor 58 to swing left and right, and the soil scraped into the soil bucket 61 is divided into two parts on the left and right, and the two ejection ports on the inner side of the cavity shell 651 with the diversion column 655 as the dividing line are used to divide the soil into two places for guidance, and the excavated soil can be transported to a place far away from the positioning base 51 for stacking, so as to avoid the accumulation of soil near the positioning base 51 and affecting the normal use of the positioning base 51 and the drilling cleaning machine.

[0073] That is to say, with the help of the positioning base 51, a cleaning motor 58 is set near the soil discharge screw 2, which is used to clean the soil that may be adhered to the soil discharge screw 2 when the soil discharge screw 2 is pushed in reverse, thereby realizing automatic cleaning of the soil adhered to the soil discharge screw 2, reducing the burden of the soil discharge screw 2 when drilling again, and also ensuring the drilling efficiency of the soil discharge screw 2 when drilling again.

[0074] That is, through the coordinated use of the above-mentioned driving device 4, base assembly 5 and soil discharge pipe 6 together with the soil discharge screw 2, the working principle of this anti-blocking structure is realized, so that the soil discharge screw 2 of the drilling and cleaning machine can more flexibly cope with the blockage situation under different geological conditions, ensuring the continuous and efficient completion of the bored pile drilling operation.

[0075] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An anti-clogging rotary bored pile drilling and cleaning machine, comprising a support frame (1), characterized in that: Eight first vibration sensors (11) are installed in a circular array in a circular inner wall in the middle of the top end of the support frame (1), and a ball head body (12) is installed at the end of each first vibration sensor (11); It also comprises a soil discharge screw (2), which is mounted in the middle of the support frame (1), and the soil discharge screw (2) comprises a rotary digging rod (21) mounted in the middle of the support frame (1), four first reverse scale blocks (22) are spirally mounted on the surface of the rotary digging rod (21) near the top, a joint rod body (23) is connected to the bottom of the rotary digging rod (21), and four second reverse scale blocks (24) are spirally mounted on the surface of the rotary digging rod (21) near the bottom; A driving device (4), the driving device (4) being threadedly mounted on the top of the support frame (1), the driving device (4) comprising a gear box (41) threadedly mounted on the top of the support frame (1), a driving motor (42) being assembled on the top of the gear box (41), the driving motor (42) being transmission-mounted with the transmission shaft (3) via the gear box (41), and a control block (43) being mounted on the driving motor (42); A base assembly (5), the base assembly (5) being mounted at the bottom end of the support frame (1), the base assembly (5) comprising a positioning base (51) mounted at the bottom end of the support frame (1), a hoop ring (52) being fixedly mounted in the middle of the positioning base (51), three slots (53) being formed in the form of an equilateral triangle on the positioning base (51), and sealing plugs (54) being fitted inside the slots (53); A soil discharge pipe (6), the soil discharge pipe (6) being mounted on the base assembly (5), the soil discharge pipe (6) comprising a soil bucket (61) threadedly mounted on the positioning base (51), an edge expansion portion (62) being provided on one end side of the soil bucket (61) close to the positioning base (51), the edge expansion portion (62) correspondingly fitting on the outer side of the stirrup ring (52), and a torsion motor (63) being mounted on the top of the edge expansion portion (62); The second reverse scale block (24) has the same structure as the first reverse scale block (22), and is both installed on the rotary drilling rod (21) in a counterclockwise direction. A reinforcing plate (25) is fixedly connected to the joint rod body (23). A drill head body (26) is installed at the bottom of the joint rod body (23). A spiral drill cutter is provided on the surface of the drill head body (26). A water permeable hole (27) is provided on the surface of the drill head body (26). A hydraulic component (28) is installed inside the rotary drilling rod (21). The bottom of the hydraulic component (28) passes through the joint rod body (23) and extends to the inside of the drill head body (26) to communicate with the water permeable hole (27). The hydraulic assembly (28) comprises an inner tube (281) installed inside the rotary drilling rod (21), a right hemisphere (282) and a left hemisphere (284) are assembled inside the inner tube (281), the right hemisphere (282) is installed below the left hemisphere (284), the surfaces of the right hemisphere (282) and the left hemisphere (284) are provided with notches in a left-right dislocation, the tops of both are arranged in a curved surface, a thin rod group 1 (283) is installed on the side of the right hemisphere (282), a thin rod group 2 (285) is installed on the side of the left hemisphere (284), the thin rod group 2 (285) has the same structure as the thin rod group 1 (283), and the thin rod group 2 (285) and the thin rod group 1 (283) are arranged in a perpendicular cross-arrangement with the plane where the thin rod group 2 (285) and the thin rod group 1 (283) are located; A clamping body (801) is installed on the right-facing hemisphere (282), and the top and bottom of the clamping body (801) are both connected to folding springs (802). A sleeve (803) is fixedly installed on a side of the clamping body (801) facing away from the right-facing hemisphere (282), and the sleeve (803) is sleeved on the thin rod group (283). A stop pin (804) is installed on the thin rod group (283), and the sleeve (803) is arranged between the two stop pins (804).

2. The anti-clogging rotary bored pile drilling and cleaning machine according to claim 1, characterized in that: A transmission shaft (3) is assembled at the top of the soil discharge screw (2), a head pipe (31) is threadedly mounted on the top of the transmission shaft (3), a main body of the hydraulic assembly (28) is mounted inside a long rod cavity composed of a rotary drilling rod (21) and the transmission shaft (3), and the head pipe (31) is connected to the top of the built-in pipe (281) via the transmission shaft (3).

3. The anti-clogging rotary bored pile drilling and cleaning machine according to claim 1, characterized in that: An inner ring member (55) is installed on the inner side of the hoop ring (52); a sleeve (56) is installed on the positioning base (51) via a slot (53); a base column (57) is installed on the bottom end of the sleeve (56) via a latch; the base column (57) can be mounted on the positioning base (51) via the slot (53); an arc-shaped groove (561) is provided on the surface of the sleeve (56); and a cleaning motor (58) is assembled on the inner side of the sleeve (56).

4. The anti-clogging rotary bored pile drilling and cleaning machine according to claim 3, characterized in that: The inner ring member (55) comprises an inner ring body (551) assembled on the inner side of the stirrup ring (52); spiral ridges (552) are installed in a circular array on the inner wall of the inner ring body (551); rubber strips (553) are installed in a circular array on the outer wall of the inner ring body (551); telescopic elastic rods (554) are also installed in a circular array on the outer wall of the inner ring body (551); the telescopic elastic rods (554) and the rubber strips (553) are staggered on the inner ring body (551); a second vibration sensor (555) is embedded and installed on the inner side of one end of the telescopic elastic rod (554) away from the inner ring body (551); and one end of the telescopic elastic rod (554) away from the inner ring body (551) is threadedly installed on the inner wall of the stirrup ring (52).

5. The anti-clogging rotary bored pile drilling and cleaning machine according to claim 4, characterized in that: The surface of the cleaning motor (58) is connected to a positioning sleeve rod (581) and a support rod (582); the positioning sleeve rod (581) and the support rod (582) are both connected to the cleaning motor (58) in an equilateral triangle shape and are staggered; an inclined plate scraper (583) is threadedly mounted on the support rod (582); the inclined plate scraper (583) is generally divided into a front side with a cutting edge and a back side without a cutting edge; three groups of support members (59) are mounted in a circular array around the cleaning motor (58); the support members (59) are assembled in a close fit on the back side of the inclined plate scraper (583); The support member (59) comprises a reinforcing plate (591) which is fitted and assembled on the back side of the inclined plate scraper (583); an arc-shaped recess (592) is provided at one end of the reinforcing plate (591) close to the cleaning motor (58); the reinforcing plate (591) is fitted and installed with the sleeve (56) through the arc-shaped recess (592) and the arc-shaped groove (561); a first screw rod (593) and a second screw rod (595) are threadedly installed on one side of the reinforcing plate (591) away from the cleaning motor (58); the second screw rod (595) is installed at the end away from the arc-shaped recess (592); A flexible spacer (594) is threadedly mounted on one side of the rib plate (591) facing the inclined plate scraper (583) via a second screw rod (595), and the flexible spacer (594) is tightly fitted on the back side of the first screw rod (593). The rib plate (591) can also be threadedly mounted on the cleaning motor (58) via the first screw rod (593), wherein the positioning sleeve rod (581) passes through the sleeve shell (56) and extends into the inner side of the arc-shaped groove (561), and the first screw rod (593) is threadedly connected to the positioning sleeve rod (581) on the inner side of the arc-shaped groove (561) via the rib plate (591).

6. The anti-clogging rotary bored pile drilling and cleaning machine according to claim 5, characterized in that: The end of the expansion portion (62) away from the positioning base (51) is connected to a hose telescopic portion (64), and the end of the hose telescopic portion (64) away from the earth bucket (61) is connected to a double cavity (65); the double cavity (65) comprises a cavity shell (651) connected to the hose telescopic portion (64), two cables (652) are symmetrically connected to the inner wall of the cavity shell (651), and the other ends of the two cables (652) are connected to the inner wall of the earth bucket (61); in an initial state, the cables (652) are in a relaxed state, and the cavity shell (651) is symmetrically mounted with a ring disk (653) ), a long connecting plate (654) is installed on the annular disk (653), and one end of the long connecting plate (654) away from the annular disk (653) is hinged on the earth bucket (61), wherein the torsion motor (63) on the top of the earth bucket (61) is connected to the long connecting plate (654) on the top of the cavity shell (651), and the cavity shell (651) is swingably installed with the earth bucket (61) through the cooperation of the long connecting plate (654) on the annular disk (653) and the torsion motor (63), and a diverter column (655) is fixedly connected to the inner middle part of the cavity shell (651), and the diverter column (655) is installed at the end away from the earth bucket (61).

7. The anti-clogging rotary bored pile drilling and cleaning machine according to claim 6, characterized in that: The input end of the control block (43) is electrically connected to the output ends of the drive motor (42), the first vibration sensor (11), the second vibration sensor (555), the cleaning motor (58), and the torsion motor (63), respectively. At the same time, the output end of the control block (43) is also electrically connected to the input ends of the drive motor (42), the first vibration sensor (11), the second vibration sensor (555), the cleaning motor (58), and the torsion motor (63), respectively, so as to control the drive motor (42), the cleaning motor (58), and the torsion motor (63), and to receive and feedback the signals of the first vibration sensor (11) and the second vibration sensor (555).

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