CN113513306A - While-drilling inclination measuring device of rotary drilling equipment - Google Patents
While-drilling inclination measuring device of rotary drilling equipment Download PDFInfo
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- CN113513306A CN113513306A CN202111023155.3A CN202111023155A CN113513306A CN 113513306 A CN113513306 A CN 113513306A CN 202111023155 A CN202111023155 A CN 202111023155A CN 113513306 A CN113513306 A CN 113513306A
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- 238000005553 drilling Methods 0.000 title claims abstract description 143
- 238000005259 measurement Methods 0.000 claims description 49
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- 239000007788 liquid Substances 0.000 description 11
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
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- E21B47/00—Survey of boreholes or wells
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Abstract
The invention provides a while-drilling inclination measuring device of rotary drilling equipment, which comprises: the device comprises a travelling mechanism, a stand column, a drill rod, a rigid rod and a reading instrument; the upright post is arranged on the traveling mechanism, and a bottom guide frame is arranged on the upright post; one end of the drill rod is connected with the upright post, the other end of the drill rod penetrates through the bottom guide frame to be connected with the drill bit, and the drill rod can move along the axial direction of the upright post; the drill rod can be rotatably arranged outside the rigid rod, and a sensor is arranged in the rigid rod; the reading instrument is arranged on the walking mechanism and can display signals detected by the sensor. In the scheme, the measuring accuracy of the pile-forming verticality can be detected through the rigid rod, the inclination can be corrected at any time, and the pile-forming verticality and the engineering construction quality are ensured.
Description
Technical Field
The invention relates to the technical field of engineering construction, in particular to a rotary drilling equipment inclination measuring device while drilling.
Background
The rotary drilling equipment is widely applied to the field of building engineering, such as drilling piling equipment, and can serve foundation treatment, waterproof curtains and foundation pit supporting engineering. The high verticality pile body is the premise of ensuring the construction quality, and drilling and pile foundation engineering with poor verticality can cause serious economic loss and even threaten the engineering safety.
At the present stage, a large number of rotary drilling devices are not provided with corresponding control devices for the perpendicularity of the drilled holes, and part of the devices monitor the perpendicularity degree of the drilled holes by adopting devices or methods such as line perpendicularity, visual inspection, theodolite, laser range finders and the like. The control methods have various defects, such as low precision, poor effect and high subjectivity of operators in a plumb line method and an eye measurement method. Although the precision of equipment such as theodolites and laser rangefinders is improved, the detection principle is that the verticality of a drill rod below the ground is calculated by observing the verticality of a mast above the ground. The method is indirect measurement and has low accuracy. The verticality of the drilled hole and the verticality of the drill bit are measured while drilling, which is an ideal method for ensuring the verticality of the pile hole.
The existing inclination measurement while drilling technology is mainly based on an acceleration sensor, and the acceleration sensor requires that a measured object cannot perform variable speed movement (such as rotation) during measurement. Therefore, the existing inclination measurement while drilling technology is applied to the field of directional drilling with a non-rotating drill rod. In the field of rotary drilling equipment, the main inclination measurement method is 'measuring an inclination value when drilling is stopped', and real-time inclination measurement while drilling cannot be realized. The prior art does not solve the problem of inclination measurement while drilling of rotary drilling equipment, so that the rotary drilling equipment has poor pile perpendicularity measurement precision, poor pile perpendicularity and low engineering construction quality.
Disclosure of Invention
The invention aims to provide a while-drilling inclination measurement device of rotary drilling equipment, which aims to solve the problems of poor pile perpendicularity measurement precision, poor pile perpendicularity and low engineering construction quality in the conventional while-drilling inclination measurement technology.
In order to solve the technical problem, the inclination measuring device while drilling of the rotary drilling equipment provided by the invention comprises:
a traveling mechanism is arranged on the base plate,
the upright post is arranged on the travelling mechanism, and a bottom guide frame is arranged on the upright post;
one end of the drill rod is connected with the upright column, the other end of the drill rod penetrates through the bottom guide frame and is connected with the drill bit, and the drill rod can move along the axial direction of the upright column;
the drill rod is rotatably arranged outside the rigid rod, and a sensor is arranged in the rigid rod; and a process for the preparation of a coating,
the reading instrument is arranged on the travelling mechanism and can display signals detected by the sensor.
In some embodiments of the present invention, the rotary drilling apparatus inclination measuring while drilling device further includes a limit ring frame, the limit ring frame is disposed in the drill rod, the limit ring frame is provided with a through hole, and the rigid rod is disposed in the through hole in a penetrating manner.
In some embodiments of the present invention, the rotary drilling apparatus inclination measuring while drilling device further includes a bearing, the bearing is sleeved in the through hole, and the rigid rod is sleeved in the bearing.
In some embodiments of the present invention, the number of the stop ring frames is plural, and the plural stop ring frames are arranged along the axial direction of the drill rod.
In some embodiments of the present invention, the number of the rigid rods is plural, and two adjacent rigid rods are connected by a universal joint.
In some embodiments of the invention, the rotary drilling equipment inclination measurement while drilling device further comprises an upper guide frame, the drill pipe is connected with the upright column through the upper guide frame, the upper guide frame can move along the axial direction of the upright column, the rigid rod is fixedly connected to the upper guide frame, and the drill pipe is rotatably connected to the upper guide frame.
In some embodiments of the invention, the drill rod is rotated around the axial direction of the drill rod by a power device, and the power device is arranged on the upper guide frame or the bottom guide frame.
In some embodiments of the invention, the rotary drilling equipment inclination measurement while drilling device further comprises a guide rail, the guide rail is arranged on the upright column along the axis direction of the upright column, the upper guide frame can move along the guide rail, the upright column is provided with a pulley, and the upper guide frame is wound on the pulley through a lifting rope.
In some embodiments of the invention, the rotary drilling apparatus inclination measurement while drilling device further comprises a fastener for limiting the axial movement of the rigid rod relative to the drill rod.
In some embodiments of the invention, the sensors comprise an inclination measurement sensor and an azimuth measurement sensor.
By adopting the technical scheme, the invention has the following beneficial effects:
in the drilling inclination measuring device of the rotary drilling equipment, the drill rod can be rotatably arranged outside the rigid rod, and a sensor is arranged in the rigid rod; the reader is capable of displaying the signal detected by the sensor. The problem that rotary drilling equipment which cannot be solved by the prior art cannot measure inclination while drilling is solved. The invention can detect the verticality of the drill rod in real time while drilling through the rigid rod, has better pile-forming verticality measurement precision, can correct the inclination at any time, and ensures the pile-forming verticality and the engineering construction quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic side structure diagram of a rotary drilling device inclination measurement while drilling device according to embodiment 1 of the present invention;
fig. 2 is a top view of a middle column and an upper guide frame of a drilling inclinometer of rotary drilling equipment provided in embodiment 1 of the invention;
FIG. 3 is a longitudinal sectional view of a drill rod in a drilling inclinometer of rotary drilling equipment provided by the embodiment 1 of the invention;
FIG. 4 is a longitudinal sectional view of a drill rod and a drill bit in a drilling inclinometer of rotary drilling equipment provided by the embodiment 1 of the invention;
fig. 5 is a transverse cross-sectional view of a bearing and a drill rod in a drilling inclinometer of rotary drilling equipment provided in embodiment 1 of the invention;
fig. 6 is an angle measured by an inclination angle measuring sensor in the inclination measuring while drilling device of rotary drilling equipment according to embodiment 1 of the present invention;
fig. 7 is a schematic side structure view of a rotary drilling apparatus inclination measurement while drilling device according to embodiment 2 of the present invention;
FIG. 8 is a schematic side view illustrating an operating state of a rotary drilling apparatus while drilling inclinometer according to embodiment 3 of the present invention;
fig. 9 is a schematic diagram of a lateral cross section of a gearbox in an while-drilling inclinometer for rotary drilling equipment according to embodiment 3 of the invention.
Fig. 10 is a longitudinal sectional view of a gearbox in an while-drilling inclination measuring device of rotary drilling equipment provided in embodiment 3 of the invention.
Fig. 11 is a schematic front structural view of a drill rod in a drilling inclinometer of rotary drilling equipment provided in embodiment 4 of the present invention;
FIG. 12 is a longitudinal sectional view of a guide sleeve in a drilling inclinometer of rotary drilling equipment provided in embodiment 4 of the invention;
FIG. 13 is a transverse sectional view of a guide sleeve in a inclinometer while drilling device of rotary drilling equipment provided in embodiment 4 of the invention;
FIG. 14 is a schematic view of the measurement principle of embodiment 5 of the present invention;
fig. 15 is a schematic front structural view of a drill rod in a drilling inclinometer of rotary drilling equipment according to embodiment 5 of the present invention;
fig. 16 is a longitudinal sectional view of a liquid storage barrel in a drilling inclinometer of rotary drilling equipment provided by the embodiment 5 of the invention;
fig. 17 is a longitudinal sectional view of a laser displacement measuring device in a drilling inclinometer of rotary drilling equipment provided in embodiment 5 of the invention;
fig. 18 is a transverse cross-sectional view of a laser displacement measuring device in a drilling inclinometer of rotary drilling equipment provided by embodiment 5 of the invention;
fig. 19 is a transverse sectional view of a liquid storage barrel in a drilling inclinometer of rotary drilling equipment provided by the embodiment 5 of the invention;
FIG. 20 is a transverse cross-sectional view of a bottom buckle and a drill rod in a inclinometer while drilling device of rotary drilling equipment provided by embodiment 5 of the invention;
reference numerals:
1-drill bit, 2-bottom guide frame, 3-drill rod, 4-fixed frame, 5-lifting rope, 6-upright column, 7-inclined strut, 8-walking mechanism, 9-limit ring frame, 10-bearing, 11-universal joint, 13-rigid rod, 14-guide rail, 15-reading instrument, 16-fastener, 17-inclination measuring sensor, 18-upper guide frame, 19-bearing inner ring, 20-bearing outer ring, 24-gear box, 25-driving tooth, 26-driven gear, 27-power device output shaft, 28-power device, 111-guide sleeve, 112-guide sleeve seat, 114-middle through hole, 115-sensor cavity, positioning tube 118, 119-side through hole, 209-bottom connecting rod, 210-bottom buckle, 211-steel wire rope, 212-liquid storage barrel, 213-floating body, 214-liquid, 215-top buckle, 216-floating body connecting rod, 224-supporting frame, 227-laser measuring device, 228-light sensitive plate, 229-point light source and 230-shell.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
Example 1:
as shown in fig. 1 to 4, the inclination measuring device while drilling of the rotary drilling apparatus provided by the present invention includes: the traveling mechanism 8, the upright post 6, the drill rod 3, the rigid rod 13 and the reading instrument 15; the upright post 6 is arranged on the traveling mechanism 8, and the bottom guide frame 2 is arranged on the upright post 6; one end of a drill rod 3 is connected with the upright post 6, the other end of the drill rod 3 penetrates through the bottom guide frame 2 to be connected with the drill bit 1, and the drill rod 3 can move along the axial direction of the upright post 6; the rigid rod 13 is arranged in the drill rod 3, a sensor for monitoring the inclination degree of the drill rod 3 is arranged in the rigid rod 13, and the drill rod 3 is rotationally sleeved outside the rigid rod 3; the reading instrument 15 is arranged on the travelling mechanism 8, and the reading instrument 15 can display signals detected by the sensor. The rigid rod 13 is connected to the column 6 such that the center of the upper part of the drill rod 3 coincides with the center of the upper part of the rigid rod 13.
Specifically, the rigid rod 13 is arranged in the drill rod 3, and the rigid rod 13 does not rotate when the drill rod 3 rotates continuously. The method can overcome the defect that the inclination value of an object can not be measured when the object is in a variable-speed motion state (such as rotation) in the prior art, the rigid rod 13 is arranged to overcome the influence of the rotation of the drill rod 3 on the inclination measurement, the verticality of the drilled hole is accurately measured, and corrective measures are taken to ensure that the verticality meets the engineering requirements. The method solves the problem that rotary drilling equipment which cannot be solved by the prior art cannot measure inclination while drilling, and is relative to a method for measuring the verticality of a drill rod above the ground and then calculating.
In some embodiments of the present invention, the inclination measurement while drilling device of the rotary drilling apparatus further includes a limit ring frame 9, the limit ring frame 9 is disposed in the drill rod 3, the limit ring frame 9 is provided with a through hole, and the rigid rod 13 is disposed in the through hole. As shown in fig. 5, the limiting ring frame 9 may include at least two connecting portions, the at least two connecting portions are disposed outside the sleeved portion along a circumferential direction of the sleeved portion, the through hole is disposed in the sleeved portion, the rigid rod 13 is sleeved in the through hole, and the connecting portions are fixedly connected to the drill rod 3.
Specifically, when the rotary drilling equipment works, the drill rod 3 continuously rotates, the rigid rod 13 is sleeved with the limiting ring frame 9, and the rigid rod 13 is rigidly connected with a connecting piece (such as an upper guide frame 18) of the drill rod 3 and the upright post 6, so that the rigid rod 13 does not rotate when the drill rod 3 rotates, but the rigid rod 13 can incline along with the drill rod 3 when the drill rod 3 inclines, and the measurement of the inclination value of each part of a drilled hole along with drilling can be realized.
In some embodiments of the present invention, the inclination measuring while drilling device of the rotary drilling apparatus further includes a bearing 10, the bearing 10 is sleeved in the through hole, and the rigid rod 13 is sleeved in the bearing.
The bearing 10 can eliminate the influence of the rotation of the drill rod 3 on the measurement of the inclination degree of the drill hole, the bearing 10 comprises a bearing inner ring 19 and a bearing outer ring 20, and the limit ring frame 9 is rigidly connected with the bearing outer ring 20 and the inner wall of the drill rod 3. The center of the bearing 10 is coincident with the center of the drill rod 3. The rigid rod 13 is tightly nested with the bearing 10.
In some embodiments of the present invention, the number of the retainer ring frames 9 is plural, and the plural retainer ring frames 9 are arranged along the axial direction of the drill rod 3.
In some embodiments of the present invention, the number of the rigid rods 13 is plural, and two adjacent rigid rods 13 are connected by the universal joint 11.
Specifically, a plurality of rigid rods 13 are arranged along the length direction of the drill rod 3 in a head-to-head connection mode, and the plurality of rigid rods 13 are connected through universal joints 11. Alternatively, the rigid rod 13 may be formed by rigidly connecting a plurality of lengths of rigid rods 13 of different lengths. Preferably, the rigid connection may be a bolted connection. The short rigid rods in the embodiment are three and all have the same length.
The universal joint 11 is composed of a universal joint cross, a first universal joint fork and a second universal joint fork, the first universal joint fork is connected with the last short rigid rod, and the second universal joint fork is connected with the next adjacent short rigid rod. The first universal joint fork can rotate around an X shaft and a Y shaft on the universal joint cross shaft relative to the second universal joint fork, but the first universal joint fork cannot rotate around a Z shaft relative to the second universal joint fork.
In some embodiments of the present invention, the inclination measuring while drilling device of the rotary drilling apparatus further comprises an upper guide frame 18, the upper guide frame 18 can be arranged on the column 6 along the axial direction of the column, the drill rod 3 is connected with the column 6 through the upper guide frame 18, the rigid rod 13 is fixedly connected to the upper guide frame 18, and the drill rod 3 is rotatably connected to the upper guide frame 18. The drill rod 3 and the rigid rod 13 are both connected to the column 6 by means of an upper guide 18.
In some embodiments of the invention, the drill rod 3 is rotated around the axial direction of the drill rod 3 by a power device 28, and the power device 28 is arranged on the upper guide frame 18 or the lower guide frame 2.
In particular, the power means 28 rotates the drill rod 3 through a gear train.
In some embodiments of the present invention, the rotary drilling apparatus inclination measuring while drilling device further comprises a guide rail 14, the guide rail 14 is arranged on the upright 6 along the axial direction thereof, and the upper guide frame 18 can move along the guide rail 14. The upright post 6 is provided with a pulley, and the upper guide frame 18 is wound on the pulley through the lifting rope 5.
In particular, the guide rail 14 is connected to an upper guide frame 18, the upper guide frame 18 controlling the position of the top of the drill rod 3. The rigid rod 13 is arranged on the upper guide frame 18 through the fixing frame 4, and the upper center of the drill rod 3 is overlapped with the center of the rigid rod 13.
In some embodiments of the invention, the rotary drilling apparatus inclination measurement while drilling device further comprises a fastener 16, and the fastener 16 is used for limiting the axial movement of the rigid rod 13 relative to the drill rod 3.
Specifically, the rigid rod 13 is fixed on the limit ring frame 9, a thread may be provided on the rigid rod 13, and the fastener 16 is far away from the same as the nut, so that the rigid rod 13 can be fixed through threaded connection. The fastener 16 is sized slightly wider than the rigid rod 13. The fastener 16 is in close contact with the bearing inner race 19 located at the lowermost portion. The fastener 16 is used for pre-tightening and fastening the rigid rods 13, so that each rigid rod 13 is in a tension state, and the measurement accuracy is improved.
In some embodiments of the invention, the sensors include a tilt measurement sensor 17 and an azimuth measurement sensor.
The azimuth angle measuring sensor is used for measuring the angle of the sensor rotating around the gravity axis, and is generally called as an azimuth angle; as shown in fig. 6, the inclination angle measuring sensor 17 measures the angle between two orthogonal axes on its sensor and the horizontal plane: the included angle alpha between the X axis and the horizontal plane and the included angle beta between the Y axis and the horizontal plane. The current inclinometer technology cannot accurately measure the inclination value of the inclination angle measuring sensor 17 under the condition of continuous rotation. This application is when drilling rod 3 rotates, overcomes drilling rod 3 and rotates the influence to measuring, and the real-time measurement drilling rod 3 is at three-dimensional space inclination degree.
The upright post 6 is arranged on the traveling mechanism 8 through the inclined strut 7, and the inclination angle of the inclined strut 7 can be adjusted according to requirements.
When the inclination measuring device while drilling of the rotary drilling equipment provided by the invention is used, the fixing frame 4 is rigidly connected with the upper guide frame 18 of the rotary drilling equipment, and the center of the fixing frame 4 is positioned right above the center of the upper part of the drill rod 3. Inside the drill rod 3 are several rigid rods 13 connected in series by universal joints 11. The upper part of the rigid rod 13 at the highest position is rigidly connected with the center of the fixed frame 4, and the center of the rigid rod is superposed with the center of the upper part of the drill rod 3. The rigid rod 13 is provided with a tilt angle measuring device and an azimuth angle measuring device inside. The limit ring frame 9 and the bearings 10 are provided with a plurality of groups and are positioned on the planes of the drill rods 3 at different heights. The limit ring frame 9 is rigidly connected with the bearing outer ring 20 and the inner wall of the bottom of the drill rod 3, and the center of the bearing 10 is coincided with the center of the drill rod 3. The rigid rod 13 is tightly nested with the bearing 10. The fastener 16 is located at the lower part of the bearing 10 at the lowest position and is closely attached to the bearing inner ring 19 at the lowest position for pre-fastening the rigid rod. The reading instrument 15 has the function of reading the measurement data of the inclination angle measuring device and the azimuth angle measuring device. During drilling, the influence of the rotation of the drill rod 3 on inclination measurement is overcome through a rigid rod, a universal joint and a bearing which are rigidly connected with the upper guide frame 18, the verticality of the drilled hole is accurately measured in a segmented mode, and a correction measure is taken to ensure that the verticality meets the engineering requirements.
Example 2
The condition of partial drilling stratum is complex, the hardness is uneven, the drilling efficiency is underground when the power is too low, the moment of the drill bit is unbalanced due to uneven hardness of the stratum when the power is larger, the drill bit is easy to deflect, and the deflection is transmitted to the drill rod after the drill bit deflects, so that the deflection of the whole hole is finally caused. In the embodiment 2, which is an embodiment for a complex stratum in which the deflection of the drill bit is difficult to control, as shown in fig. 7, the fixed frame 4 is rigidly connected with the upper guide frame 18 of the rotary drilling equipment, and the center of the fixed frame 4 is positioned right above the center of the upper part of the drill rod 3. Below the fixed frame 4, 3 rigid rods 13 are connected in series by 2 universal joints 11. Of the 3 rigid rods 13, the rigid rods 13 located above and below are short, and the rigid rod 13 located in the middle is long. The rigid rods 13 positioned at the middle part and the lower part are internally provided with an inclination angle measuring device and an azimuth angle measuring device. The fixed frame 4 is rigidly connected to the uppermost rigid rod 13. The lowermost rigid rod 13, which is located at a small distance from the drill bit 1 and whose inclination corresponds to the inclination of the drill bit 1, can be used to measure the inclination of the drill bit 1. Since the top and bottom midpoints of the rigid rod 13 in the middle are respectively coincident with the top and bottom midpoints of the drill rod 3, the inclination degree of the drill rod can be measured.
In the embodiment 2, when the rotary drilling device provided by the invention is used, in the drilling process, the inclination degree measured by the rigid rod 13 at the bottom is paid attention to in real time, the inclination trend of the drill bit can be found at the first time, when the inclination of the drill bit is found, downward drilling is stopped, the drill bit 1 is moved up and down at the inclined position, and rock and soil mass at the inclined position is repeatedly swept to cut until the inclination degree measured by the rigid rod 13 at the bottom is smaller than an expected design value, and then downward drilling is continued. The measured inclination of the centrally located rigid rod 13 is the overall inclination of the drill rod. Can be used as an auxiliary judgment basis for the eccentric hole.
Example 3:
the power device 28 of a part of the bored pile machine is located at the top of the drill rod 3, and there is a conflict in terms of spatial position with the related devices such as the fixing frame 4 and the like provided in the present invention, and in this embodiment 3, as shown in fig. 8, in the working state of the conventional pile forming machine, the gear box 24 is provided on the upper guide frame 18, the power device 28 is provided above the gear box 24, and the axis of the power device 28 is parallel to the axis of the drill rod 3, in order to ensure that the pile forming machine with the power device 28 located at the top of the drill rod 3 can normally apply the present invention. The fixed frame 4 is rigidly connected with the gear box. As shown in fig. 10 and 9, the drill rod 3 passes through the gear box 24. The power plant output shaft 27 is a power output shaft of the power plant 28. One end of the power plant output shaft 27 passes through the top of the gear box 24. A drive gear 25 and a driven gear 26 are provided in the gear case 24. The driving gear 25 and the driven gear 26 are hollow, and a plurality of gear teeth are arranged on the outside. The teeth of the drive gear 25 and the driven gear 26 are engaged with each other. The power plant output shaft 27 is located within the drive gear 25. The power plant output shaft 27 is rigidly connected to the drive gear 25, and the power plant output shaft 27 coincides with the center of the plane of the drive gear 25. The upper end of the drill rod 3 is located in the through hole of the driven gear 26. The drill rod 3 is rigidly connected to the driven gear 26. The driven gear 26 coincides with the planar centre of the drill rod 3. The drill rod 3 is hollow, and the top end of the rigid rod 13 passes through the interior of the drill rod 3 and the gear box 24 to be connected to the fixed frame 4. The main function of the driving gear 25 and the driven gear 26 in the gear box 24 is to reduce the speed, i.e. to convert the high-speed and low-torque power of the power device 28 into low-speed and high-torque power to meet the drilling requirement.
With the above arrangement, when the power unit 28 is located at the top of the drill rod 3, the conflict in the spatial position between the fixing frame 4 and the power unit 28 can be resolved. The invention can be applied to a pile-forming machine with a power device 28 positioned at the top of the drill rod 3.
Example 4:
since the measurement result of the measurement device relying on a single measurement method has a certain instability, the embodiment is an embodiment including a device for checking the measurement result, and the stability and the accuracy of the measurement result are increased.
As shown in fig. 11 to 14, in the rotary drilling apparatus inclination measuring while drilling device provided by the present invention, there are 2 positioning pipes 118 located at both sides of the drill pipe 3. The upper portion of the positioning tube 118 is rigidly connected to the upper guide frame 18. The bottom of the positioning tube 118 passes through the side through hole 119 of the guide sleeve 111 and is rigidly connected to the guide sleeve 111. A sensor is arranged in the guide sleeve 111; the reader is capable of displaying the signal detected by the sensor.
The guide sleeve base 112 is formed by rigidly connecting an upper guide sleeve base member, a middle guide sleeve base member, and a lower guide sleeve base member. The outer contours of the middle guide sleeve seat component, the upper guide sleeve seat component and the lower guide sleeve seat component are all thick-wall cylinders, and the plane size of the outer contours of the upper guide sleeve seat component and the lower guide sleeve seat component is larger than that of the middle guide sleeve seat component.
The guide sleeve 111 is arranged outside the positioning tube 118 through the guide sleeve seat 112. The guide sleeve 111 is provided with a middle through hole 114, and the drill rod 3 is positioned in the middle through hole 114. The positioning tube 118 is located within the side through hole 119. The drill rod 3 is in clearance fit with the through-hole 114. The drill rod 3 is rotatably disposed in the through-center hole 114.
The guide sleeve 111 is arranged to enable the drill rod 3 to be movably connected with the guide sleeve 111, and the guide sleeve 111 does not rotate along with the axial rotation of the drill rod 3. The guide sleeve 111 may be inclined with inclination of the drill rod 3. That is, during drilling, the inclination of the guide sleeve 111 is the same as the inclination of the drill rod 3, and the drill rod is relatively stationary without rotating. The inclination angle measuring sensor and the azimuth angle measuring sensor are arranged in the sensor cavity 115 of the guide sleeve 111, so that the influence of the rotation of the drill rod 3 on the inclination degree of the measured drill hole is eliminated, the inclination value of the drill rod can be measured while drilling, and the measured value can be used for checking the verticality result of the drilled pile measured by the method.
In particular, the provision of a plurality of sensors enables the measurement to be more accurate.
In some embodiments of the invention, the sensor comprises an inclination angle measurement sensor and/or an azimuth angle measurement sensor, and a vibration isolation cushion is arranged between each of the inclination angle measurement sensor and the azimuth angle measurement sensor and the sensor cavity.
Specifically, the inclination angle measurement sensor and the azimuth angle measurement sensor are arranged in the sensor cavity 115, a shock insulation pad is arranged between the inclination angle measurement sensor and the sensor cavity, and a shock insulation pad is also arranged between the azimuth angle measurement sensor and the sensor cavity. The vibration of the sensor can be reduced by arranging the vibration isolation cushion.
According to the inclination measuring device while drilling of the rotary drilling equipment, provided by the invention, the verticality of the drill bit 1 and the drill rod 3 can be monitored in real time through the inclination measuring sensor and the azimuth measuring sensor in the guide sleeve 111, and the monitoring value of the inclination measuring sensor in the rigid rod 13 in the drill rod 3 can be checked in real time through the measuring result.
Example 5:
the invention mainly depends on the inclination angle measuring sensor to measure the verticality of the drill hole, but the inclination angle measuring sensor generally has calibration errors, so that the measuring result is distorted. The embodiment is a drilling-while-drilling inclination measuring device of rotary drilling equipment, which can realize accurate checking of the verticality of a drill rod and eliminate the influence of sensor measurement errors caused by factors such as calibration of an inclination measuring sensor in the checking process.
As shown in fig. 14 to 20, a wire rope 211 is provided in the positioning pipe 118, and a tension unit for tensioning the wire rope 211 and keeping the wire rope 211 in a vertical state in the direction of the gravity axis of the positioning pipe is connected to the tip of the wire rope 211. The tensioning unit is a floating body 213, the tensioning device further comprises a liquid storage barrel 212, and liquid 214 can be filled in the liquid storage barrel 212; the floating body 213 is connected to the top end of the steel wire rope 211, and after the liquid 214 is introduced into the liquid storage barrel 212, the floating body 213 moves upwards along the axial direction of the drill rod.
As shown in fig. 15, since the buoyancy applied to the floating body 213 is always vertically upward, the buoyancy applied to the floating body 213 is inevitably equal to and opposite to the downward tension applied to the floating body 213 by the wire rope 211 when the floating body 213 is at rest. That is, the wire rope 211 is always in an absolutely vertical state to provide a vertically downward pulling force that can be balanced with the "buoyancy force in the absolutely vertical direction". When the bottom of the steel wire rope 211 is fixed to the bottom of the positioning tube 118, the verticality of the positioning tube 118 can be determined by measuring the offset degree of the top of the steel wire rope 211 relative to the center of the top of the positioning tube 118. Because the steel wire rope 211 is absolutely vertical, the zero drift and other phenomena of a common inclination angle sensor can not occur to the measured deviation degree, and parameter calibration is not needed, therefore, the monitoring value of the inclination angle sensor in the rigid rod 13 is checked by utilizing the monitoring value in the embodiment, and the influence of the sensor measurement error caused by the factors such as the calibration of the inclination angle measurement sensor can be eliminated.
The bottom of the liquid storage barrel 212 is rigidly connected with a support frame 224, and the liquid storage barrel 21 is connected with the upper guide frame 18 through the support frame 224. The rotary drilling equipment inclination measuring while drilling device further comprises a top buckle 215 and a bottom buckle 210, the top of the steel wire rope 211 is connected with a floating body connecting rod 216 through the top buckle 215, and the floating body connecting rod 216 is connected with a floating body 213. The top and bottom buckles 210 of the steel wire rope 211 are connected with the bottom connecting rod 209, the bottom connecting rod 209 is connected with the positioning tube 118, the positioning tube 118 does not rotate along with the rotating bucket of the drill rod 3, but inclines along with the inclination of the drill rod 3, and the inclination of the whole drill rod is measured through the displacement of the positioning tube 118 relative to the steel wire rope 211. The measuring device is a laser measuring device 227, the laser measuring device 227 comprises a shell 230, two point light sources 229 and two light sensing plates 228, the shell 230 encloses a measuring space, a reading instrument is arranged in the shell 230, the two point light sources 229 and the two light sensing plates 228 are located in the measuring space, and the light sensing plates 228 can receive signals of the point light sources 229 and transmit the signals to the reading instrument.
In summary, in the device for measuring inclination of rotary drilling equipment along with drilling provided by the invention, the rigid rod is arranged in the drill rod, and the sensor is arranged in the rigid rod; the reader is capable of displaying the signal detected by the sensor. The measuring accuracy of the pile-forming verticality can be detected through the rigid rod, the inclination can be corrected at any time, and the pile-forming verticality and the engineering construction quality are guaranteed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A rotary drilling equipment inclination measurement while drilling device is characterized by comprising:
a traveling mechanism is arranged on the base plate,
the upright post is arranged on the travelling mechanism, and a bottom guide frame is arranged on the upright post;
one end of the drill rod is connected with the upright column, the other end of the drill rod penetrates through the bottom guide frame and is connected with the drill bit, and the drill rod can move along the axial direction of the upright column;
the drill rod is rotatably arranged outside the rigid rod, and a sensor is arranged in the rigid rod; and a process for the preparation of a coating,
the reading instrument is arranged on the travelling mechanism and can display signals detected by the sensor.
2. The rotary drilling equipment inclination while drilling device of claim 1, further comprising a limiting ring frame, wherein the limiting ring frame is arranged in the drill rod, the limiting ring frame is provided with a through hole, and the rigid rod is arranged in the through hole in a penetrating manner.
3. The rotary drilling equipment inclination while drilling device of claim 2, further comprising a bearing, wherein the bearing is sleeved in the through hole, and the rigid rod is sleeved in the bearing.
4. The rotary drilling equipment inclination while drilling device of claim 2, wherein the number of the stop ring frames is multiple, and the plurality of the stop ring frames are arranged along the axial direction of the drill rod.
5. The rotary drilling equipment inclination while drilling device of claim 1, wherein the number of the rigid rods is multiple, and two adjacent rigid rods are connected through a universal joint.
6. The rotary drilling device inclination while drilling device of claim 1, further comprising an upper guide frame, wherein the drill rod is connected with the column through the upper guide frame, the upper guide frame can move along the axis direction of the column, the rigid rod is fixedly connected to the upper guide frame, and the drill rod is rotatably connected to the upper guide frame.
7. The rotary drilling apparatus inclination while drilling device of claim 6, wherein the drill rod is rotated around the axial direction of the drill rod by a power device, and the power device is arranged on the upper guide frame or the bottom guide frame.
8. The rotary drilling equipment inclination while drilling device of claim 6, further comprising a guide rail, wherein the guide rail is arranged on the column along the axial direction of the column, the upper guide frame can move along the guide rail, the column is provided with a pulley, and the upper guide frame is wound on the pulley through a lifting rope.
9. The rotary drilling apparatus inclination while drilling device of claim 1, further comprising a fastener for limiting axial movement of the rigid rod relative to the drill pipe.
10. The rotary drilling apparatus inclination while drilling device of claim 1, wherein the sensors comprise an inclination measurement sensor and an azimuth measurement sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111023155.3A CN113513306A (en) | 2021-09-01 | 2021-09-01 | While-drilling inclination measuring device of rotary drilling equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111023155.3A CN113513306A (en) | 2021-09-01 | 2021-09-01 | While-drilling inclination measuring device of rotary drilling equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412450A (en) * | 2022-03-31 | 2022-04-29 | 中国航天建设集团有限公司 | Drilling-while-drilling inclination measuring device suitable for rotary drilling rig |
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