A rotary drilling equipment while drilling inclination measuring device

Abstract

The present invention provides a rotary drilling equipment inclination measuring device while drilling, the rotary drilling equipment inclination measuring device while drilling, including: a traveling mechanism, a column, a drill rod, a rigid rod, and a reading instrument; the column is arranged on the traveling mechanism, and a bottom guide frame is arranged on the column; one end of the drill rod is connected to the column, and the other end of the drill rod is passed through the bottom guide frame and connected to the drill bit, and the drill rod can move along the axis direction of the column; the drill rod can be rotatably arranged outside the rigid rod, and a sensor is arranged inside the rigid rod; the reading instrument is arranged on the traveling mechanism, and the reading instrument can display the signal detected by the sensor. In this scheme, the measurement accuracy of the verticality of the pile can be detected by the rigid rod, and the inclination can be corrected at any time to ensure the verticality of the pile and the quality of engineering construction.

Description

Technical Field

[0001] The invention relates to the technical field of engineering construction, in particular to a drilling-while-drilling inclination measuring device for rotary drilling equipment. Background Art

[0002] Rotary drilling equipment is widely used in the field of construction engineering, such as pile drilling equipment, which can serve foundation treatment, water-stop curtain and foundation pit support engineering. High verticality piles are the prerequisite for ensuring construction quality. Drilling and pile foundation engineering with poor verticality will cause serious economic losses and even threaten engineering safety.

[0003] At present, a large number of rotary drilling equipment are not equipped with corresponding control devices for borehole verticality. Some equipment uses plumb line, visual inspection, theodolite, laser rangefinder and other equipment or methods to monitor the verticality of the borehole. The above control methods all have many disadvantages, such as low accuracy, poor effect and high subjectivity of operators in plumb line and visual inspection. Although theodolite, laser rangefinder and other equipment have improved the accuracy, their detection principle is to infer the verticality of the drill rod below the ground by observing the verticality of the mast above the ground. This method is an indirect measurement with low accuracy. The measurement of borehole verticality and drill bit verticality while drilling is an ideal way to ensure the verticality of the pile hole.

[0004] The existing inclination measurement while drilling technology is mainly based on acceleration sensors, which require that the object being measured cannot undergo variable speed motion (such as rotation) during measurement. Therefore, the existing inclination measurement while drilling technology is applied to the field of directional drilling where the drill pipe does not rotate. In the field of rotary drilling equipment, the main inclination measurement method is "measuring the inclination value when drilling is stopped", which cannot achieve real-time inclination measurement while drilling. The existing technology does not solve the problem of inclination measurement while drilling for rotary drilling equipment, resulting in poor measurement accuracy of verticality of piles formed by rotary drilling equipment, poor verticality of piles formed, and low quality of engineering construction. Summary of the invention

[0005] The purpose of the present invention is to provide a rotary drilling equipment while drilling inclination measurement device to solve the problems of poor pile verticality measurement accuracy, poor pile verticality and low engineering construction quality in the existing while drilling inclination measurement technology.

[0006] In order to solve the above technical problems, the present invention provides a rotary drilling equipment while drilling inclination measuring device, comprising:

[0007] Walking mechanism,

[0008] A column, wherein the column is arranged on the walking mechanism, and a bottom guide frame is arranged on the column;

[0009] A drill rod, one end of which is connected to the column, the other end of which is passed through the bottom guide frame and connected to the drill bit, and the drill rod can move along the axis direction of the column;

[0010] a rigid rod, the drill rod being rotatably disposed outside the rigid rod, a sensor being disposed inside the rigid rod; and,

[0011] A reader is provided on the walking mechanism, and the reader can display the signal detected by the sensor.

[0012] In some embodiments of the present invention, the rotary drilling equipment inclination measurement device also includes a limit ring frame, the limit ring frame is arranged in the drill rod, the limit ring frame is provided with a through hole, and the rigid rod is passed through the through hole.

[0013] In some embodiments of the present invention, the rotary drilling equipment inclination measurement while drilling device further includes a bearing, the bearing is sleeved in the through hole, and the rigid rod is sleeved in the bearing.

[0014] In some embodiments of the present invention, there are multiple limit ring frames, and the multiple limit ring frames are arranged along the axial direction of the drill rod.

[0015] In some embodiments of the present invention, there are multiple rigid rods, and two adjacent rigid rods are connected via a universal joint.

[0016] In some embodiments of the present invention, the rotary drilling equipment while-drilling inclinometer device also includes an upper guide frame, the drill rod is connected to the column via the upper guide frame, the upper guide frame can move along the axial 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.

[0017] In some embodiments of the present invention, the drill rod is rotated around the axis 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.

[0018] In some embodiments of the present invention, the rotary drilling equipment inclinometer device also includes a guide rail, the guide rail is arranged on the column along its axial direction, the upper guide frame can move along the guide rail, the column is provided with a pulley, and the upper guide frame is wound around the pulley through a lifting rope.

[0019] In some embodiments of the present invention, the rotary drilling equipment inclination measurement device further includes a fastener, and the fastener is used to limit the movement of the rigid rod relative to the axial direction of the drill rod.

[0020] In some embodiments of the present invention, the sensor includes a tilt angle measurement sensor and an azimuth angle measurement sensor.

[0021] By adopting the above technical solution, the present invention has the following beneficial effects:

[0022] In the device for measuring inclination while drilling for rotary drilling equipment provided by the present invention, the drill rod can be rotatably arranged outside the rigid rod, and a sensor is arranged inside the rigid rod; the reader can display the signal detected by the sensor. The problem that rotary drilling equipment cannot measure inclination while drilling, which has not been solved by the prior art, is solved. The present invention can detect the verticality of the drill rod in real time while drilling through the rigid rod, and the measurement accuracy of the verticality of the pile is good. The inclination can be corrected at any time to ensure the verticality of the pile and the quality of the engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic side structural diagram of a rotary drilling equipment inclination measurement while drilling device provided in Example 1 of the present invention;

[0025] Figure 2 A top view of a column and an upper guide frame in a rotary drilling equipment while drilling inclination measuring device provided in Example 1 of the present invention;

[0026] Figure 3 A longitudinal cross-sectional view of a drill pipe in a drilling while inclinometer device for rotary drilling equipment provided in Example 1 of the present invention;

[0027] Figure 4 A longitudinal cross-sectional view of a drill rod and a drill bit in a rotary drilling equipment while drilling inclination measuring device provided in Example 1 of the present invention;

[0028] Figure 5 A transverse cross-sectional view of a bearing and a drill pipe in a drilling-while-drilling inclination measuring device for rotary drilling equipment provided in Example 1 of the present invention;

[0029] Figure 6 The angle measured by the inclination measuring sensor in the drilling-while-drilling inclination measuring device of the rotary drilling equipment provided in Embodiment 1 of the present invention;

[0030] Figure 7 A schematic diagram of the side structure of a rotary drilling equipment while drilling inclination measuring device provided in Example 2 of the present invention;

[0031] Figure 8 It is a side schematic diagram of a working state of a rotary drilling equipment while drilling inclination measuring device provided by Example 3 of the present invention;

[0032] Fig. 9 It is a schematic cross-sectional view of a gear box in a drilling while inclinometer device of a rotary drilling equipment provided in Example 3 of the present invention.

[0033] Fig.10 It is a longitudinal cross-sectional view of a gear box in a drilling and inclinometer device of a rotary drilling equipment provided in Example 3 of the present invention.

[0034] Fig.11 A schematic diagram of the front structure of a drill rod in a drilling while inclinometer device for rotary drilling equipment provided in Example 4 of the present invention;

[0035] Fig.12 A longitudinal cross-sectional view of a guide sleeve in a drilling-while-drilling device for rotary drilling equipment provided in Example 4 of the present invention;

[0036] Fig.13 A transverse cross-sectional view of a guide sleeve in a drilling-while-drilling device for rotary drilling equipment provided in Example 4 of the present invention;

[0037] Fig.14 This is a schematic diagram of the measurement principle of Example 5 of the present invention;

[0038] Fig.15 A front structural schematic diagram of a drill rod in a drilling while inclination measuring device for a rotary drilling equipment provided in Example 5 of the present invention;

[0039] Fig.16 A longitudinal cross-sectional view of a liquid storage barrel in a drilling-while-drilling inclination measuring device of a rotary drilling equipment provided in Example 5 of the present invention;

[0040] Fig.17 A longitudinal cross-sectional view of a laser displacement measuring device in a while-drilling inclination measuring device of a rotary drilling equipment provided in Example 5 of the present invention;

[0041] Fig.18 A transverse cross-sectional view of a laser displacement measurement device in a while-drilling inclination measurement device for a rotary drilling equipment provided in Example 5 of the present invention;

[0042] Fig.19 A transverse cross-sectional view of a liquid storage barrel in a drilling-while-drilling inclination measuring device of a rotary drilling equipment provided in Example 5 of the present invention;

[0043] Fig. 20 A transverse cross-sectional view of a bottom buckle and a drill pipe in a drilling-while-drilling inclination measuring device for a rotary drilling equipment provided in Example 5 of the present invention;

[0044] Reference numerals:

[0045] 1-drill bit, 2-bottom guide frame, 3-drill rod, 4-fixed frame, 5-lifting rope, 6-column, 7-brace, 8-travel mechanism, 9-limiting ring frame, 10-bearing, 11-universal joint, 13-rigid rod, 14-guide rail, 15-reading instrument, 16-fastener, 17-inclination measurement sensor, 18-upper guide frame, 19-bearing inner ring, 20-bearing outer ring, 24-gear box, 25-driving gear, 26-driven gear, 27-power unit output shaft, 28-power unit,

[0046] 111-guide sleeve, 112-guide sleeve seat, 114-middle through hole, 115-sensor cavity, positioning tube 118, 119-side through hole,

[0047] 209-bottom connecting rod, 210-bottom buckle, 211-wire rope, 212-liquid storage barrel, 213-floating body, 214-liquid, 215-top buckle, 216-floating body connecting rod, 224-support frame, 227-laser measuring device, 228-photosensitive plate, 229-point light source, 230-shell. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The present invention is further explained below in conjunction with specific implementation modes.

[0052] Embodiment 1:

[0053] like Figures 1 to 4 As shown, the rotary drilling equipment inclination measurement device provided by the present invention in this embodiment includes: a walking mechanism 8, a column 6, a drill rod 3, a rigid rod 13, and a reading instrument 15; the column 6 is arranged on the walking mechanism 8, and a bottom guide frame 2 is arranged on the column 6; one end of the drill rod 3 is connected to the column 6, and the other end of the drill rod 3 is passed through the bottom guide frame 2 and connected to the drill bit 1, and the drill rod 3 can move along the axis direction of the column 6; the rigid rod 13 is arranged in the drill rod 3, and a sensor for monitoring the inclination of the drill rod 3 is arranged in the rigid rod 13, and the drill rod 3 is rotatably sleeved outside the rigid rod 13; the reading instrument 15 is arranged on the walking mechanism 8, and the reading instrument 15 can display the signal detected by the sensor. The rigid rod 13 is connected to the column 6, and the upper center of the drill rod 3 and the upper center of the rigid rod 13 are coincident.

[0054] Specifically, the rigid rod 13 is arranged in the drill rod 3, and when the drill rod 3 rotates continuously, the rigid rod 13 does not rotate. It can overcome the problem that the prior art cannot measure the inclination value of an object when it is in a variable speed motion state (such as rotation). Setting the rigid rod 13 can overcome the influence of the rotation of the drill rod 3 on the inclination measurement, accurately measure the verticality of the borehole, take corrective measures, and ensure that the verticality meets the engineering requirements. It solves the problem that the rotary drilling equipment cannot measure the inclination while drilling, which has not been solved by the prior art, and is relative to the method of measuring the verticality of the drill rod above the ground and then calculating it.

[0055] In some embodiments of the present invention, the rotary drilling equipment inclination measurement device further includes a limit ring frame 9, which is arranged in the drill rod 3, and the limit ring frame 9 is provided with a through hole, and the rigid rod 13 is passed through the through hole. Figure 5 As shown, the limiting ring frame 9 may include a sleeve portion and a connecting portion, there are at least two connecting portions, at least two connecting portions are arranged on the outside of the sleeve portion along the circumference of the sleeve portion, a through hole is arranged in the sleeve portion, the rigid rod 13 is sleeved in the through hole, and the connecting portion is fixedly connected to the drill pipe 3.

[0056] Specifically, when the rotary drilling equipment is working, the drill rod 3 rotates continuously, and is fitted with the rigid rod 13 through the limit ring frame 9. The rigid rod 13 is rigidly connected to the "connecting piece between the drill rod 3 and the column 6" (such as the upper guide frame 18), so that the rigid rod 13 does not rotate when the drill rod 3 rotates, but the rigid rod 13 can tilt with the drill rod 3 when the drill rod 3 tilts, so that the inclination value of each part of the borehole can be measured while drilling.

[0057] In some embodiments of the present invention, the rotary drilling equipment inclination measurement while drilling device further includes a bearing 10, the bearing 10 is sleeved in the through hole, and the rigid rod 13 is sleeved in the bearing.

[0058] The bearing 10 can eliminate the influence of the rotation of the drill rod 3 on the measurement of the inclination of the borehole. The bearing 10 includes a bearing inner ring 19 and a bearing outer ring 20. The limiting ring frame 9 rigidly connects the bearing outer ring 20 and the inner wall of the drill rod 3. The center of the bearing 10 coincides with the center of the drill rod 3. The rigid rod 13 is tightly fitted with the bearing 10.

[0059] In some embodiments of the present invention, there are multiple limiting ring frames 9 , and the multiple limiting ring frames 9 are arranged along the axial direction of the drill rod 3 .

[0060] In some embodiments of the present invention, there are multiple rigid rods 13 , and two adjacent rigid rods 13 are connected via a universal joint 11 .

[0061] Specifically, a plurality of rigid rods 13 are connected in the first position and arranged along the length direction of the drill pipe 3, and the plurality of rigid rods 13 are connected by a universal joint 11. Alternatively, the rigid rod 13 can be formed by rigidly connecting a plurality of rigid rods 13 of different lengths. Preferably, the rigid connection can be a bolt connection. There are three short rigid rods in the embodiment, and the lengths are the same.

[0062] The universal joint 11 is composed of a universal joint cross shaft, a first universal joint fork, and a second universal joint fork. The first universal joint fork is connected to the previous short rigid rod, and the second universal joint fork is connected to the next adjacent short rigid rod. The first universal joint fork can rotate relative to the second universal joint fork around the X-axis and Y-axis on the universal joint cross shaft, but the first universal joint fork cannot rotate relative to the second universal joint fork around the Z-axis.

[0063] In some embodiments of the present invention, the rotary drilling equipment inclination measurement device further includes an upper guide frame 18, which can be arranged on the column 6 along the axial direction of the column, the drill rod 3 is connected to 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. Both the drill rod 3 and the rigid rod 13 are connected to the column 6 through the upper guide frame 18.

[0064] In some embodiments of the present invention, the drill rod 3 is rotated around the axis direction of the drill rod 3 by a power device 28 , and the power device 28 is disposed on the upper guide frame 18 or the bottom guide frame 2 .

[0065] Specifically, the power device 28 drives the drill rod 3 to rotate through a gear set.

[0066] In some embodiments of the present invention, the rotary drilling equipment inclination measurement while drilling device further includes a guide rail 14, and the guide rail 14 is arranged on the column 6 along its axial direction, and the upper guide frame 18 can move along the guide rail 14. A pulley is arranged on the column 6, and the upper guide frame 18 is wound around the pulley through the lifting rope 5.

[0067] Specifically, the guide rail 14 is connected to the upper guide frame 18, and the upper guide frame 18 controls the position of the top of the drill rod 3. The rigid rod 13 is arranged on the upper guide frame 18 through the fixed frame 4, and the center of the upper part of the drill rod 3 and the center of the rigid rod 13 coincide.

[0068] In some embodiments of the present invention, the rotary drilling equipment inclination measurement while drilling device further includes a fastener 16 , and the fastener 16 is used to limit the movement of the rigid rod 13 relative to the axial direction of the drill rod 3 .

[0069] Specifically, the rigid rod 13 is fixed on the limiting ring frame 9, and a thread can be provided on the rigid rod 13. The fastener 16 is aligned with the nut, and the rigid rod 13 can be fixed by threaded connection. The size of the fastener 16 is slightly wider than the rigid rod 13. The fastener 16 is in close contact with the inner ring 19 of the bearing at the bottom. The fastener 16 is used to pre-tighten and tighten the rigid rod 13, so that each rigid rod 13 is in a tension state, thereby increasing the measurement accuracy.

[0070] In some embodiments of the present invention, the sensor includes a tilt angle measurement sensor 17 and an azimuth angle measurement sensor.

[0071] Azimuth angle measurement sensors are used to measure the angle of rotation of the sensor around the gravity axis, which is generally called azimuth; Figure 6 As shown, the angles between the two orthogonal axes on the sensor and the horizontal plane are measured by the inclination measuring sensor 17: the angle α between the X-axis and the horizontal plane, and the angle β between the Y-axis and the horizontal plane. The current inclination measurement technology cannot accurately measure the inclination value of the inclination measuring sensor 17 when it is constantly rotating. When the drill rod 3 rotates, the present application overcomes the influence of the rotation of the drill rod 3 on the measurement, and measures the inclination degree of the drill rod 3 in three-dimensional space in real time.

[0072] The upright column 6 is arranged on the running mechanism 8 through the diagonal brace 7, and the inclination angle of the diagonal brace 7 can be adjusted according to the demand.

[0073] When the rotary drilling equipment inclination measurement device provided by the present invention is used, the fixed frame 4 is rigidly connected to the upper guide frame 18 of the rotary drilling equipment, and the center of the fixed frame 4 is located directly above the center of the upper part of the drill rod 3. A plurality of rigid rods 13 connected in series through the universal joint 11 are located inside the drill rod 3. The upper part of the rigid rod 13 located at the highest point is rigidly connected to the center of the fixed frame 4, and its center coincides with the center of the upper part of the drill rod 3. The rigid rod 13 has a built-in inclination measuring device and an azimuth measuring device. There are several groups of limit ring frames 9 and bearings 10, which are located on the plane of the drill rod 3 at different heights. The limit ring frame 9 is rigidly connected to the outer ring 20 of the bearing and the inner wall of the bottom of the drill rod 3, and the center of the bearing 10 coincides with the center of the drill rod 3. The rigid rod 13 is tightly fitted with the bearing 10. The fastener 16 is located at the lower part of the lowest bearing 10 and is in close contact with the lowest bearing inner ring 19, and is used to pre-tighten the rigid rod. The reader 15 has the function of reading the measurement data of the inclination measuring device and the azimuth measuring device. During drilling, the influence of the rotation of the drill pipe 3 on the inclination measurement is overcome through the rigid rod, universal joint and bearing rigidly connected to the upper guide frame 18, the verticality of the borehole is accurately measured in sections, and corrective measures are taken to ensure that the verticality meets the engineering requirements.

[0074] Example 2

[0075] Some drilling formations are complex and uneven in hardness and softness. When the power is too low, the drilling efficiency is low. When the power is high, the torque on the drill bit is unbalanced due to the uneven hardness of the formation, which can easily cause the drill bit to deflect. After the drill bit deflects, the deflection is transmitted to the drill rod, eventually causing the whole hole to deflect. This embodiment 2 is an embodiment for complex formations where drill bit deflection is difficult to control, such as Figure 7 As shown, the fixed frame 4 is rigidly connected to the upper guide frame 18 of the rotary drilling equipment, and the center of the fixed frame 4 is located directly above the upper center of the drill rod 3. Below the fixed frame 4, three rigid rods 13 are connected in series through two universal joints 11. Among the three rigid rods 13, the rigid rods 13 located at the top and bottom are shorter, and the rigid rod 13 located in the middle is longer. The rigid rods 13 located in the middle and the bottom are built-in with an inclination measuring device and an azimuth measuring device. The fixed frame 4 is rigidly connected to the rigid rod 13 located at the top. The rigid rod 13 located at the bottom is at a smaller distance from the drill bit 1, and its inclination is consistent with the inclination of the drill bit 1, so it can be used to measure the inclination of the drill bit 1. Since the top midpoint and the bottom midpoint of the rigid rod 13 located in the middle coincide with the top midpoint and the bottom midpoint of the drill rod 3 respectively, it can be used to measure the inclination of the drill rod.

[0076] In this embodiment 2, when using the rotary drilling equipment while drilling inclination measuring device provided by the invention, during the drilling process, the degree of inclination measured by the rigid rod 13 at the bottom is paid attention to in real time, and the deflection trend of the drill bit can be discovered immediately. When the drill bit is found to be deflected, the downward drilling is stopped, and the drill bit 1 is moved up and down at the deflected position, and the rock and soil at the deflected drilling position is repeatedly swept and cut until the degree of inclination measured by the rigid rod 13 at the bottom is less than the expected design value, and then the drilling is continued downward. The degree of inclination measured by the rigid rod 13 at the middle is the overall degree of inclination of the drill rod. It can be used as an auxiliary basis for judging the deflected hole.

[0077] Embodiment 3:

[0078] The power device 28 of some bored pile machines is located at the top of the drill rod 3, which conflicts with the fixed frame 4 and other related devices provided in the present invention in terms of spatial position. This embodiment 3 is an embodiment of "ensuring 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". Figure 8 As shown, in the conventional pile-driving machine working state, a gear box 24 is arranged on the upper guide frame 18, and a power device 28 is arranged above the gear box 24. The axis of the power device 28 is parallel to the axis of the drill rod 3. The fixed frame 4 is rigidly connected to the gear box. Fig.10 , Fig. 9 As shown, the drill rod 3 passes through the gear box 24. The power unit output shaft 27 is the power output shaft of the power unit 28. One end of the power unit output shaft 27 passes through the top of the gear box 24. A driving gear 25 and a driven gear 26 are arranged in the gear box 24. The driving gear 25 and the driven gear 26 are hollow inside, and a plurality of gear teeth are arranged outside. The gear teeth of the driving gear 25 and the driven gear 26 mesh with each other. The power unit output shaft 27 is located in the driving gear 25. The power unit output shaft 27 is rigidly connected to the driving gear 25, and the plane center of the power unit output shaft 27 coincides with the driving 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 plane center of the drill rod 3. The drill rod 3 is hollow, and the top end of the rigid rod 13 passes through the inside of the drill rod 3 and the gear box 24 and is 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 speed, that is, to convert the high-speed, low-torque power of the power device 28 into low-speed, high-torque power to meet the drilling needs.

[0079] By the above arrangement, when the power device 28 is located at the top of the drill rod 3, the spatial position conflict between the fixing frame 4 and the power device 28 can be resolved. The present invention can be applied to a pile-forming machine in which the power device 28 is located at the top of the drill rod 3.

[0080] Embodiment 4:

[0081] Since the measurement results of a measurement device that relies on a single measurement method have certain instability, this embodiment is an embodiment including a device for calibrating the measurement results to increase the stability and accuracy of the measurement results.

[0082] like Figures 11 to 14 As shown, the present invention provides a rotary drilling equipment while drilling inclination measuring device, there are two positioning tubes 118, located on both sides of the drill pipe 3. The upper part 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 reading instrument can display the signal detected by the sensor.

[0083] The guide sleeve 112 is composed of an upper guide sleeve component, a middle guide sleeve component, and a lower guide sleeve component which are rigidly connected. The outer contours of the middle guide sleeve component, the upper guide sleeve component, and the lower guide sleeve component are all thick-walled cylindrical, and the outer contour plane dimensions of the upper guide sleeve component and the lower guide sleeve component are larger than the plane dimensions of the middle guide sleeve component.

[0084] 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 central through hole 114, and the drill rod 3 is located in the central through hole 114. The positioning tube 118 is located in the side through hole 119. The drill rod 3 is clearance-matched with the central through hole 114. The drill rod 3 is rotatably arranged in the central through hole 114.

[0085] The guide sleeve 111 is provided to enable the drill rod 3 to be dynamically connected to the guide sleeve 111, and the guide sleeve 111 does not rotate with the rotation of the drill rod 3 around the axis. However, the guide sleeve 111 can tilt with the inclination of the drill rod 3. That is, during the drilling process, the inclination value of the guide sleeve 111 is consistent with the inclination value of the drill rod 3, and no rotation occurs, and it is relatively static. The prior art cannot accurately measure the inclination posture of an object in variable speed motion (such as rotational motion). The present invention embeds the inclination angle measurement sensor and the azimuth angle measurement sensor into the sensor cavity 115 of the guide sleeve 111, eliminates the influence of the rotation of the drill rod 3 on the measurement of the inclination degree of the borehole, and can realize the measurement of the inclination value of the drill rod while drilling. The measured value can be used to verify the verticality result of the bored pile measured by the present invention.

[0086] Specifically, providing multiple sensors can make the measurement more accurate.

[0087] In some embodiments of the present invention, the sensor includes an inclination measurement sensor and / or an azimuth measurement sensor, and a seismic isolation pad is disposed between the inclination measurement sensor and the azimuth measurement sensor and the sensor cavity, respectively.

[0088] Specifically, the inclination angle measuring sensor and the azimuth angle measuring sensor are arranged in the sensor cavity 115, and a seismic isolation pad is arranged between the inclination angle measuring sensor and the sensor cavity, and a seismic isolation pad is also arranged between the azimuth angle measuring sensor and the sensor cavity. The seismic isolation pad can reduce the vibration of the sensor.

[0089] The present invention provides a rotary drilling equipment inclinometer device, which can monitor the verticality of the drill bit 1 and the drill rod 3 in real time through the inclination measurement sensor and the azimuth measurement sensor in the guide sleeve 111. The measurement result can be used to verify the monitoring value of the inclination measurement sensor in the rigid rod 13 inside the drill rod 3 in real time.

[0090] Embodiment 5:

[0091] The present invention mainly relies on the inclination measurement sensor to measure the verticality of the borehole, but the inclination measurement sensor generally has calibration errors, resulting in distorted measurement results. This embodiment is a rotary drilling equipment while drilling inclination measurement device, which can realize the accurate verification of the verticality of the drill pipe, and can eliminate the influence of sensor measurement errors caused by factors such as the calibration of the inclination measurement sensor during the verification process.

[0092] like Figures 14 to 20 As shown, a steel wire rope 211 is arranged in the positioning tube 118, and a tensioning unit is connected to the top end of the steel wire rope 211. The tensioning unit is used to tension the steel wire rope 211 and keep the steel wire rope 211 in a vertical state along the gravity axis direction of the positioning tube. The tensioning unit is a float 213, and the tensioning unit also includes a liquid storage barrel 212, into which liquid 214 can be passed; the float 213 is connected to the top end of the steel wire rope 211, and after the liquid 214 is passed into the liquid storage barrel 212, the float 213 moves upward along the axis direction of the drill pipe.

[0093] like Fig.15 As shown, since the buoyancy of the float 213 is always vertically upward, when the float 213 is stationary, the downward pulling force applied to the float 213 by the steel wire rope 211 must be equal in magnitude and opposite in direction. That is, the steel wire rope 211 must be in an absolutely vertical state to provide a vertical downward pulling force that can balance the "buoyancy in an absolutely vertically upward 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 degree of deviation of the top of the steel wire rope 211 relative to the top center of the positioning tube 118. Since the steel wire rope 211 is absolutely vertical, the measured deviation degree will not cause the zero drift of a general inclination sensor, and parameter calibration is not required. Therefore, the monitoring value in this embodiment is used to calibrate the monitoring value of the inclination sensor in the rigid rod 13, which can eliminate the influence of sensor measurement errors caused by factors such as the calibration of the inclination measurement sensor.

[0094] The bottom of the liquid storage barrel 212 is rigidly connected to the support frame 224, and the liquid storage barrel 21 is connected to the upper guide frame 18 through the support frame 224. The rotary drilling equipment inclination measurement device also includes a top buckle 215 and a bottom buckle 210. The top of the wire rope 211 is connected to the floating body connecting rod 216 through the top buckle 215, and the floating body connecting rod 216 is connected to the floating body 213. The top bottom buckle 210 of the wire rope 211 is connected to the bottom connecting rod 209, and the bottom connecting rod 209 is connected to the positioning tube 118. The positioning tube 118 does not rotate with the rotating bucket of the drill pipe 3, but tilts with the inclination of the drill pipe 3. The displacement of the positioning tube 118 relative to the wire rope 211 can measure the inclination of the entire drill pipe. The measuring device is a laser measuring device 227, which includes a shell 230, two point light sources 229 and two photosensitive plates 228. The shell 230 encloses a measuring space, and a reader is arranged in the shell 230. The two point light sources 229 and the two photosensitive plates 228 are located in the measuring space. The photosensitive plates 228 can receive signals from the point light sources 229 and transmit them to the reader.

[0095] In summary, in the rotary drilling equipment inclination measurement device provided by the present invention, a rigid rod is arranged inside the drill rod, and a sensor is arranged inside the rigid rod; the reader can display the signal detected by the sensor. The rigid rod can detect that the verticality of the pile is of good measurement accuracy, and the inclination can be corrected at any time to ensure the verticality of the pile and the quality of engineering construction.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary drilling equipment while drilling inclination measuring device, characterized in that: include: Walking mechanism, A column, wherein the column is arranged on the walking mechanism, and a bottom guide frame is arranged on the column; A drill rod, one end of which is connected to the column, the other end of which is passed through the bottom guide frame and connected to the drill bit, and the drill rod can move along the axis direction of the column; a rigid rod, the drill rod being rotatably disposed outside the rigid rod, a sensor being disposed inside the rigid rod; and, A reader, the reader is arranged on the walking mechanism, the reader can display the signal detected by the sensor; The rotary drilling equipment while drilling inclination measuring device also includes a limit ring frame, the limit ring frame is arranged in the drill rod, the limit ring frame is provided with a through hole, and the rigid rod is passed through the through hole; It includes three rigid rods connected in series through two universal joints; among the three rigid rods, the rigid rods located at the top and bottom are shorter, and the rigid rod located in the middle is longer; the rigid rods located in the middle and bottom are built with inclination measuring devices and azimuth measuring devices; the inclination degree of the rigid rod located at the bottom is consistent with the inclination degree of the drill bit, and is used to measure the inclination degree of the drill bit; since the top midpoint and the bottom midpoint of the rigid rod located in the middle coincide with the top midpoint and the bottom midpoint of the drill rod respectively, it is used to measure the inclination degree of the drill rod; It also includes positioning tubes, two positioning tubes are located on both sides of the drill rod; the bottom of the positioning tube passes through the side through hole of the guide sleeve and is rigidly connected to the guide sleeve; the guide sleeve is provided with a central through hole, and the drill rod is located in the central through hole; the drill rod is rotatably arranged in the central through hole; the guide sleeve does not rotate with the rotation of the drill rod around the axis; the guide sleeve can be tilted with the inclination of the drill rod; that is, during the drilling process, the inclination value of the guide sleeve is consistent with the inclination value of the drill rod; A steel wire rope is arranged in the positioning tube, and a tensioning unit is connected to the top end of the steel wire rope, and the tensioning unit is used to tension the steel wire rope and keep the steel wire rope in a vertical state along the gravity axis direction of the positioning tube; the tensioning unit is a floating body, and the tensioning unit also includes a liquid storage barrel, and liquid is passed into the liquid storage barrel; the floating body is connected to the top end of the steel wire rope, and the floating body moves upward along the axis direction of the drill pipe; The bottom of the wire rope is fixed to the bottom of the positioning tube, and the verticality of the positioning tube can be determined by measuring the degree of deviation of the top of the wire rope relative to the top center of the positioning tube.

2. The rotary drilling equipment inclination measurement device according to claim 1, characterized in that: The rotary drilling equipment inclination measurement while drilling device also includes a bearing, the bearing is sleeved in the through hole, and the rigid rod is sleeved in the bearing.

3. The rotary drilling equipment inclination measurement while drilling device according to claim 1, characterized in that: There are multiple limit ring frames, and the multiple limit ring frames are arranged along the axial direction of the drill rod.

4. The rotary drilling equipment while drilling inclination measuring device according to claim 1, characterized in that: There are multiple rigid rods, and two adjacent rigid rods are connected via a universal joint.

5. The rotary drilling equipment while drilling inclination measuring device according to claim 1, characterized in that: The rotary drilling equipment while-drilling inclinometer device also includes an upper guide frame, the drill rod is connected to the column through the upper guide frame, the upper guide frame can move along the axial 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.

6. The device for measuring inclination while drilling of rotary drilling equipment according to claim 5, characterized in that: The drill rod is rotated around the axis 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.

7. The device for measuring inclination while drilling of rotary drilling equipment according to claim 5, characterized in that: The rotary drilling equipment inclinometer device also includes a guide rail. The column is provided with a guide rail along its axial direction. The upper guide frame can move along the guide rail. The column is provided with a pulley. The upper guide frame is wound around the pulley through a lifting rope.

8. The device for measuring inclination while drilling of rotary drilling equipment according to claim 1, characterized in that: The rotary drilling equipment inclination measurement device also includes a fastener, which is used to limit the movement of the rigid rod relative to the axial direction of the drill rod.

9. The device for measuring inclination while drilling of rotary drilling equipment according to claim 1, characterized in that: The sensors include a tilt angle measuring sensor and an azimuth angle measuring sensor.

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