CN111190162B - Adjusting and positioning mechanism of shield tunnel contact net anchor bolt hole positioning device and application thereof - Google Patents
Adjusting and positioning mechanism of shield tunnel contact net anchor bolt hole positioning device and application thereof Download PDFInfo
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- CN111190162B CN111190162B CN202010070540.2A CN202010070540A CN111190162B CN 111190162 B CN111190162 B CN 111190162B CN 202010070540 A CN202010070540 A CN 202010070540A CN 111190162 B CN111190162 B CN 111190162B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
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Abstract
The invention belongs to the positioning of equipment in subway tunnel construction, and particularly relates to an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device and application thereof. The adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises a triangular bracket and a laser ranging sensor; the top of the triangular bracket and the lower surface of the base plate adopt a movable ball matching mechanism with a locking device, a rotating plate is arranged above the base plate at intervals and is assembled with the base plate in a rotating way through a shaft, a first motor on the base plate drives a shaft to rotate through a gear pair, a second motor is fixed on the rotating plate, a swing rod is fixed on an output shaft of the second motor, a laser ranging sensor and a second inclination sensor are assembled on the swing rod, and a first inclination sensor is arranged on the rotating plate; the control device receives signals sent by the first inclination angle sensor and the second inclination angle sensor and controls the start and stop and the rotation angle of the first motor and the second motor. The invention effectively solves the problems of complicated positioning method in the prior art, and has the advantages of accurate positioning, simple device, convenient measurement and the like.
Description
Technical Field
The invention belongs to the positioning of equipment in subway tunnel construction, and particularly relates to an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device and application thereof.
Background
The subway tunnel overhead line system installation construction is to install the overhead line system after the track is paved, so that the traditional construction mode is changed for shortening the construction period, and the overhead line system installation trackless construction method is started when the track installation is not completed in the existing construction. Firstly, simulating a paved track, then measuring and positioning, secondly, measuring by using a total station, recording data, calculating by using other tools, and finally repositioning, wherein the two methods are complicated.
In the urban rail transit engineering measurement Specification (GB 50308-2008) and the high-speed railway engineering measurement Specification (TB 106601-2009), the control network layout and measurement requirements of the CP III are defined: CP III control points are symmetrically distributed on two sides of the line, and the longitudinal distance between the control points is 30-70 m; the encryption standard is set up one every 6 meters in the straight line segment and every 5 meters in the curve segment.
Currently, railway control networks are divided into three classes: a first level basic plane control network (CPI); a second level line plane control network (CPII); a third level of track base control network (CP iii); the track foundation control network (CP III) is a three-dimensional control network arranged along a railway line, and mainly provides a control reference for track laying, operation and maintenance.
The construction quality acceptance standard (TB 10421-2018) of the railway electric traction power supply engineering has the following regulations on the construction of the subway overhead line system:
rigid contact net positioning
The transverse center line of the anchor bolt screw is perpendicular to the line center line, the longitudinal center line is parallel to the line center line, the allowable deviation of construction along the line direction is +/-500 mm, and the allowable deviation of construction in a vertical line mode is +/-30 mm (joint or steel bar is met for adjustment). And using a T-square and a steel tape to carry out construction inspection.
The applicant has not found the patent literature report the same or similar to the present invention.
Disclosure of Invention
The invention aims to provide an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device and application thereof, which can realize accurate self-positioning of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device, and meanwhile, the device has the advantages of simple structure, low cost and convenient operation.
The invention has the following overall technical concept:
the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises a triangular bracket and a laser ranging sensor; the top of the triangular bracket and the lower surface of the base plate adopt a movable ball matching mechanism with a locking device, a rotating plate is arranged above the base plate at intervals and is rotationally assembled with the base plate through a shaft, a first motor fixed on the base plate drives the shaft to rotate through a gear pair, a second motor is fixed on the rotating plate, an output shaft of the second motor is fixedly assembled with a swinging rod, a laser ranging sensor and a second inclination sensor are assembled on the swinging rod, and a first inclination sensor is arranged on the rotating plate; the control device receives and processes signals sent by the first inclination angle sensor, the second inclination angle sensor and the laser ranging sensor, and sends control instructions to the first motor and the second motor to control the start, stop and rotation angle of the first motor and the second motor.
The application of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device.
The specific technical concept of the invention is as follows:
in order to facilitate the height adjustment of the tripod, various height adjustment modes can be adopted for each supporting leg of the tripod, including but not limited to a screw rod and nut mechanism, a pull rod locking sleeve structure, a positioning pin mechanism and the like, without departing from the technical spirit of the invention, and the preferable technical scheme is that each supporting leg of the tripod adopts a segmented telescopic structure with a locking member.
In order to facilitate the realization of the movable ball matching mechanism, the preferable technical scheme is that the movable ball matching mechanism adopts a spherical bearing assembled at the abutting part of the top of the triangular bracket and the lower surface of the base plate, and the locking device adopts a jackscrew coaxially assembled by a locking knob.
In order to enable the base plate to have a better adjusting range and adjusting freedom, a preferable technical implementation mode is that a dovetail chute is arranged between the lower surface of the base plate and the movable ball matching mechanism, and the action locking of the dovetail chute is controlled by a jackscrew coaxially assembled with the adjusting knob.
The gear pair preferably comprises a driving wheel fixed on the output shaft of the first motor, and a driven wheel coaxially and fixedly assembled with the shaft and meshed with the driving wheel.
In order to facilitate the operation of the user, the preferred technical implementation means is that the device also comprises an adjusting handle, and the adjusting handle is fixed with the base plate or the dovetail chute on the base plate.
In order to facilitate the detection of the angle change signal to be more accurate, the preferred technical implementation means is that the first inclination sensor is assembled at the outer edge of the rotating plate.
In order to improve the accuracy of the measurement data when the rotating plate rotates, the preferred technical implementation means is that the projection of the swing rod coincides with the center of the rotating plate when the swing rod is perpendicular to the rotating plate.
The applicant has noted that the length of the rocker should be as short as possible under the conditions of the assembly of the laser distance measuring sensor and the second inclination sensor, the main purpose of which is to reduce the positioning error of the device.
In order to facilitate data reading and observation, the preferred and common technical scheme is that the device further comprises a display screen which can receive and display the data output by the control device.
The application of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises the following steps:
A. setting an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device in a tunnel, setting a setting point A, wherein the coordinates of the point A are X, Y and Z, selecting a CP III pile foundation or an encryption base mark B, C point before and after the point A along the track laying direction in the tunnel under the condition that the CP III pile foundation or the encryption base mark marked in the tunnel is known, and setting B, C points on the tunnel wall on the same side adjacent to the laying track; the substrate is arranged on the tripod, a power switch of the device is started, the included angle between the rotating plate and the horizontal plane is reflected to be the included angle between the rotating plate and X, Y two axes which are coplanar and perpendicular to each other, the X, Y two-axis included angle measured by the first inclination sensor is displayed on the display screen, the tripod and the substrate are regulated, and when the included angles between the rotating plate displayed by the display screen and the X, Y two axes are 0, the substrate is fixed by the locking device;
B. starting a first motor and a second motor, fixing a base plate, driving a rotating plate to rotate around a shaft under the drive of the first motor and a gear pair, driving a swinging rod to swing under the drive of the second motor, starting a laser source, controlling the rotation of the first motor and the second motor to enable a laser point to coincide with a known first CP III pile foundation or encryption base mark C point mark, and closing the first motor and the second motor; the laser ranging sensor measures the distance L1 between the laser source and the known CP III pile foundation or the encryption basic mark C point, and the second inclination sensor measures the inclination of the swing rod at the moment, so that the included angle alpha 1 between the laser beam and the horizontal plane is obtained;
C. inputting the known first CP III pile foundation or encryption basic mark C point coordinates X1, Y1 and Z1 into a control device and confirming;
D. controlling the rotation of the first motor and the second motor, turning on the laser source to enable the laser point to coincide with the known second CP III pile foundation or the encryption basic mark B point mark, and turning off the first motor and the second motor; the laser ranging sensor measures the distance L2 between the laser source and a known second CP III pile foundation or an encryption base mark B point, and the second inclination sensor measures the inclination angle of the swing rod at the moment, so that an included angle alpha 2 between the laser beam and the horizontal plane is obtained;
E. inputting the known second CP III pile foundation or encryption basic mark B point coordinates X2, Y2 and Z2 into the control device and confirming;
F. according to the known CP III pile foundation or the projection of the coordinates of the point B and the point C of an encryption basic mark and the L1 and the L2 on a plane formed by X, Y shafts, a control device calculates two coordinates A1 and A2 of an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device on the plane formed by X, Y shafts, wherein the coordinate of the point A1 is X5, the coordinate of the point Y5, and the coordinate of the point A2 is X6 and the coordinate of the point Y6; selecting a CP III pile foundation or an encryption base mark F point corresponding to a CP III pile foundation or an encryption base mark B point (or a C point) on the other side wall of the tunnel, inputting the coordinates of the F point into a control device according to X4, Y4 and Z4, confirming the coordinates X4, Y4 and Z4, respectively calculating the distances from the coordinates to the points A1 and A2 by the control device according to the following formula, comparing the magnitudes of the numbers of the formulas (3) and (4), selecting and displaying the coordinates X, Y and Z of the A point of an adjusting and positioning mechanism of a reasonable shield tunnel contact net anchor bolt hole positioning device;
[(X4-X5) 2 +(Y4-Y5) 2 ] 1/2 ③
[(X4-X6) 2 +(Y4-Y6) 2 ] 1/2 ④
if the formula (3) is greater than the formula (4), selecting points A2 and X6, Y6, namely X=X6, and Y=Y6 as projections of coordinates of points A of an adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device on a horizontal plane, otherwise selecting points A1 and X5, Y5, namely X=X5, and Y=Y5; based on the measured data α1, α2, L1, L2, the control device calculates the difference in height between the a point and the B point (or C point) in the Z-axis direction according to the formula l11=l1×cos α1 or l21=l2×cos α2, and the Z-axis coordinates of the B point (or C point) are known, and the Z-axis coordinates of the a point are obtained using the formula z=z2-l2×sin α2 or z=z1-l1×sin α1.
The measuring principle of the invention is as follows:
the point A is the device position, the point C is the first CP III pile foundation or encryption base, three-dimensional coordinates of the point C are X1, Y1 and Z1, the point B is the second CP III pile foundation or encryption base, three-dimensional coordinates of the point B are X2, Y2 and Z2, the distance between the point A and the first CP III pile foundation or encryption base C is measured to be L1, the inclination angle between the point A and the horizontal plane is measured to be alpha 1, the distance between the point A and the second CP III pile foundation or encryption base B is measured to be L2, and the inclination angle between the point A and the horizontal plane is measured to be alpha 2.
From the trigonometric function relationship:
L11＝L1×cosα1
L21＝L2×cosα2
point a Z axis coordinate z=z2-l2×sin α2
Or z=z1-l1×sin α1
On the horizontal plane, L11 and L21 respectively form right triangle with parallel lines of X axis and Y axis, and the method is obtained by using Pythagorean theorem:
(X-X1) 2 +(Y-Y1) 2 ＝L11 2 ①
(X-X2) 2 +(Y-Y2) 2 ＝L21 2 ②
selecting a CP III pile foundation or an encryption basic mark F point corresponding to a CP III pile foundation or an encryption basic mark B point (or C point) on the other side wall of the tunnel, respectively calculating the distances from the F point to A1 (X5, Y5) and A2 (X6, Y6) according to formulas (1) and (2), comparing the numerical values of the formulas (3) and (4), and determining the X, Y axis coordinate of the A point of the device;
[(X4-X5) 2 +(Y4-Y5) 2 ] 1/2 ③
[(X4-X6) 2 +(Y4-Y6) 2 ] 1/2 ④
if the formula (3) is greater than the formula (4), selecting the point A2 (X6, Y6) as the coordinate of the X-Y axis of the point A of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device, namely X=X6, Y=Y6; otherwise, selecting A1 point (X5, Y5), namely X=X5, Y=Y5; and obtaining the coordinates (X, Y and Z) of the point A by combining the coordinates Z of the point A and the Z axis.
The applicant needs to say that:
in the description of the present invention, the orientation or positional relationship indicated by the terms "top", "lower surface", "above", "lower surface", "outer edge", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for the purpose of simplifying the description of the present invention, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. The terms "first" and "second" are used merely to describe distinguishing between elements and not necessarily for the purpose of implying any particular importance.
The invention has the substantial characteristics and the remarkable technical progress that:
1. according to the invention, the distance from the device to the CP III pile foundation or the encryption base mark point can be measured rapidly and accurately by the internal processing and control device of the controller during testing, the inclination angle of the swing rod is measured by the inclination angle sensor, and finally the coordinates of the device are calculated and positioned by the control device, so that the complicated process of simultaneously recording data and recalculating by using a simulation track (or using a total station for measurement) in the existing construction is avoided. The method can automatically realize the accurate self-positioning of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device, the placing position of the device has no special requirement, the device is simple, the control device can intuitively and rapidly display the calculation result after the data measurement is finished, and the working process from the beginning of the adjusting device to the ending of the positioning is ensured to be finished in a short time.
2. The angle of the swing rod can be effectively adjusted and accurate position positioning can be realized by the first motor and the second motor under the action of the control system through the design of the adjusting mechanisms and the sensors on the triangular bracket, the base plate and the rotating plate.
3. The adjusting handle is matched with the locking device and the structural design of the adjusting knob, so that the control and the positioning of the equipment are more convenient and flexible, and meanwhile, labor is saved.
4. The first motor and the second motor adopt stepping rotating motors, and the rotating angles of parts can be accurately controlled, so that accurate adjustment of the mechanism is realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a control schematic diagram of the present invention.
Fig. 3 is a schematic diagram of tunnel coordinate geometry of the present invention.
Reference numerals in the drawings are as follows:
1. a tripod; 2. a substrate; 3. a shaft; 4. a control device; 5. a first motor; 6. a gear pair; 7. a rotating plate; 8. a first tilt sensor; 9. a second motor; 10. swing rod; 11. a laser ranging sensor; 12. a second tilt sensor; 13. an adjustment knob; 14. a locking knob; 15. a live ball; 16. an adjustment handle; 17. a fixing belt.
Detailed Description
The present invention will be further described with reference to the following examples, but should not be construed as limiting the invention, and the scope of the invention is defined by the appended claims, and any equivalents thereof may be substituted according to the description without departing from the scope of the invention.
The whole structure and the control principle of the embodiment are shown as the figures, and the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises a tripod 1 and a laser ranging sensor 11; the top of the tripod 1 and the lower surface of the base plate 2 adopt a movable ball matching mechanism with a locking device, a rotating plate 7 is arranged above the base plate 2 at intervals and is rotationally assembled with the base plate 2 through a shaft 3, a first motor 5 fixed on the base plate 2 drives the shaft 3 to rotate through a gear pair 6, a second motor 9 is fixed on the rotating plate 7, an oscillating bar 10 is fixedly assembled on an output shaft of the second motor, a laser ranging sensor 11 and a second inclination sensor 12 are assembled on the oscillating bar 10, and a first inclination sensor 8 is arranged on the rotating plate 7; the control device 4 receives and processes signals sent by the first inclination angle sensor 8, the second inclination angle sensor 12 and the laser ranging sensor 11, and sends control instructions to the first motor 5 and the second motor 9 to control the start and stop and the rotation angle of the first motor and the second motor.
The application of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device.
Each supporting leg of the triangular bracket 1 adopts a segmented pull rod type telescopic structure with a locking sleeve.
The movable ball matching mechanism is a spherical bearing assembled at the abutting part of the top of the triangular bracket 1 and the lower surface of the base plate 2, and the locking device is a jackscrew coaxially assembled by a locking knob 14.
A dovetail chute is arranged between the lower surface of the base plate 2 and the movable ball matching mechanism, and the action locking of the dovetail chute is controlled by a jackscrew coaxially assembled with the adjusting knob 13.
The gear pair 6 comprises a driving wheel fixed on the output shaft of the first motor 5, and a driven wheel coaxially and fixedly assembled with the shaft 3 and meshed with the driving wheel.
And an adjusting handle 16, wherein the adjusting handle 16 is fixed with the base plate 2 or a dovetail chute on the base plate 2.
The first inclination sensor 8 is assembled at the outer edge of the rotating plate 7.
When the swing rod 10 is perpendicular to the rotating plate 7, the projection of the swing rod coincides with the center of the rotating plate 7.
And a display screen which can receive and display the data output by the control device 4.
The application of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises the following steps:
A. setting an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device in a tunnel, setting a setting point A, wherein the coordinates of the point A are X, Y and Z, selecting a CP III pile foundation or an encryption base mark B, C point before and after the point A along the track laying direction in the tunnel under the condition that the CP III pile foundation or the encryption base mark marked in the tunnel is known, and setting B, C points on the tunnel wall on the same side adjacent to the laying track; the substrate 2 is arranged on the tripod 1, a power switch of the device is started, the included angle between the rotating plate 7 and the horizontal plane is reflected to be the included angle between the rotating plate 7 and X, Y two axes which are coplanar and perpendicular to each other, the included angle between the X, Y two axes measured by the first inclination sensor 8 is displayed on a display screen, the tripod 1 and the substrate 2 are regulated, and when the included angle between the rotating plate 7 displayed by the display screen and the X, Y two axes is 0, the substrate 2 is fixed by the locking device;
B. starting a first motor 5 and a second motor 9, fixing a base plate 2, rotating a rotating plate 7 around a shaft 3 under the drive of the first motor 5 and a gear pair 6, swinging a swinging rod 10 under the drive of the second motor 9, turning on a laser source, controlling the rotation of the first motor 5 and the second motor 9 to enable a laser point to coincide with a known first CP III pile foundation or encryption base mark C point mark, and turning off the first motor 5 and the second motor 9; the laser ranging sensor 11 measures the distance L1 between the laser source and the known CP III pile foundation or the encryption basic mark C point, and the second inclination sensor 12 measures the inclination of the swing rod 10 at the moment, so that the included angle alpha 1 between the laser beam and the horizontal plane is obtained;
C. inputting the known first CP III pile foundation or encryption basic mark C point coordinates X1, Y1 and Z1 into the control device 4 and confirming;
D. controlling the rotation of the first motor 5 and the second motor 9, turning on the laser source to enable the laser point to coincide with the known second CP III pile foundation or the encryption basic mark B point mark, and turning off the first motor 5 and the second motor 9; the laser ranging sensor 11 measures the distance L2 between the laser source and the known second CP III pile foundation or the encryption basic mark B point, and the second inclination sensor 12 measures the inclination of the swing rod 10 at the moment, so as to obtain the included angle alpha 2 between the laser beam and the horizontal plane;
E. inputting the known second CP III pile foundation or encryption basic mark B point coordinates X2, Y2 and Z2 into the control device 4 and confirming;
F. according to the known coordinates of the point B and the point C of the CP III pile foundation or the encryption basic mark and the projection of L1 and L2 on a X, Y shaft composition plane, the control device 4 calculates two coordinates A1 and A2 of an adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device on the X, Y shaft composition plane, wherein the coordinate of the point A1 is X5, the coordinate of the point Y5, and the coordinate of the point A2 is X6 and the coordinate of the point Y6; selecting a CP III pile foundation or an encryption base mark F point corresponding to a CP III pile foundation or an encryption base mark B point (or a C point) on the other side wall of the tunnel, inputting the coordinates of the F point into a control device 4, wherein the coordinates of the F point are X4, Y4 and Z4, confirming the coordinates, X4, Y4 and Z4, respectively calculating the distances from the coordinates to the points A1 and A2 by the control device 4 according to the following formula, comparing the magnitudes of the numbers in the formulas (3) and (4), and selecting and displaying the coordinates X, Y and Z of the A point of an adjusting and positioning mechanism of a reasonable shield tunnel contact net anchor bolt hole positioning device;
[(X4-X5) 2 +(Y4-Y5) 2 ] 1/2 ③
[(X4-X6) 2 +(Y4-Y6) 2 ] 1/2 ④
if the formula (3) is greater than the formula (4), selecting points A2 and X6, Y6, namely X=X6, and Y=Y6 as projections of coordinates of points A of an adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device on a horizontal plane, otherwise selecting points A1 and X5, Y5, namely X=X5, and Y=Y5; based on the measured data α1, α2, L1, L2, the control device 4 calculates the difference in height between the a point and the B point (or C point) in the Z-axis direction according to the formula l11=l1×cos α1 or l21=l2×cos α2, and the Z-axis coordinates of the B point (or C point) are known, and obtains the Z-axis coordinates of the a point using the formula z=z2-l2×sin α2 or z=z1-l1×sin α1.
Claims (9)
1. The application method of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises a triangular bracket (1) and a laser ranging sensor (11); the device is characterized in that a movable ball matching mechanism with a locking device is adopted between the top of the triangular bracket (1) and the lower surface of the base plate (2), a rotating plate (7) is arranged above the base plate (2) at intervals and is rotationally assembled with the base plate through a shaft (3), a first motor (5) fixed on the base plate (2) drives the shaft (3) to rotate through a gear pair (6), a second motor (9) is fixed on the rotating plate (7) and is fixedly assembled with a swinging rod (10) on an output shaft of the second motor, a laser ranging sensor (11) and a second inclination sensor (12) are assembled on the swinging rod (10), and a first inclination sensor (8) is arranged on the rotating plate (7); the control device (4) receives and processes signals sent by the first inclination angle sensor (8), the second inclination angle sensor (12) and the laser ranging sensor (11), and sends control instructions to the first motor (5) and the second motor (9) to control the start, stop and rotation angles of the first motor and the second motor; the application of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device comprises the following steps:
A. setting an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device in a tunnel, setting a setting point as A, setting coordinates of the point A as (X, Y and Z), selecting a CP III pile foundation or an encryption base mark B, C point before and after the point A along the track laying direction in the tunnel under the condition that the CP III pile foundation or the encryption base mark marked in the tunnel is known, and setting B, C points on the tunnel wall on the same side adjacent to the laying track; the base plate (2) is arranged on the tripod (1), a power switch of the device is started, the included angle between the rotating plate (7) and the horizontal plane is reflected to be the included angle between the rotating plate (7) and two axes which are coplanar and mutually perpendicular to each other X, Y, the X, Y two-axis included angle measured by the first inclination angle sensor (8) is displayed on the display screen, the tripod (1) and the base plate (2) are adjusted, and when the included angle between the rotating plate (7) displayed by the display screen and the two axes of X, Y are 0, the base plate (2) is fixed by the locking device;
B. starting a first motor (5) and a second motor (9), fixing a base plate (2), rotating a rotating plate (7) around a shaft (3) under the drive of the first motor (5) and a gear pair (6), swinging a swinging rod (10) under the drive of the second motor (9), turning on a laser source, controlling the rotation of the first motor (5) and the second motor (9) to enable a laser point to coincide with a known first CP III pile foundation or encryption base mark C point mark, and turning off the first motor (5) and the second motor (9); the laser ranging sensor (11) measures the distance L1 between the laser source and the known CP III pile foundation or encryption basic mark C point, and the second inclination sensor (12) measures the inclination of the swing rod (10) at the moment, so that the included angle alpha 1 between the laser beam and the horizontal plane is obtained;
C. the known first CP III pile foundation or encryption basic mark C point coordinates (X1, Y1, Z1) are recorded into a control device (4) and confirmed;
D. controlling the rotation of the first motor (5) and the second motor (9) and turning on the laser source to enable the laser point to coincide with the known second CP III pile foundation or the encryption basic mark B point mark, and turning off the first motor (5) and the second motor (9); the laser ranging sensor (11) measures the distance L2 between the laser source and a known second CP III pile foundation or an encryption basic mark B point, and the second inclination sensor (12) measures the inclination of the swing rod (10) at the moment, so that an included angle alpha 2 between the laser beam and the horizontal plane is obtained;
E. the known second CP III pile foundation or encryption basic mark B point coordinates (X2, Y2, Z2) are input into a control device (4) and confirmed;
F. according to the known CP III pile foundation or the projection of the coordinates of the point B and the point C and the L1 and the L2 on the plane formed by the X, Y axes, a control device (4) calculates two coordinates A1 and A2 of an adjusting and positioning mechanism of a shield tunnel contact net anchor bolt hole positioning device on the plane formed by the X, Y axes, wherein the coordinate of the point A1 is (X5 and Y5), and the coordinate of the point A2 is (X6 and Y6); selecting a CP III pile foundation or an encryption base mark F point corresponding to a CP III pile foundation or an encryption base mark B point (or a C point) on the other side wall of the tunnel, inputting the coordinates (X4, Y4, Z4) of the F point into a control device (4) and confirming the coordinates (X4, Y4, Z4), respectively calculating the distances from the coordinates to the points A1 and A2 by the control device (4) according to the following formula, comparing the magnitudes of the formulas (3) and (4), and selecting and displaying the coordinates (X, Y, Z) of the point A of an adjusting and positioning mechanism of a reasonable shield tunnel contact net anchor bolt hole positioning device;
[(X4-X5) 2 +(Y4-Y5) 2 ] 1/2 ③
[(X4-X6) 2 +(Y4-Y6) 2 ] 1/2 ④
if the formula (3) is greater than the formula (4), selecting an A2 point (X6, Y6), namely X=X6, wherein Y=Y6 is the projection of the A point coordinate of an adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device on the horizontal plane, otherwise selecting an A1 point (X5, Y5), namely X=X5, and Y=Y5; based on the measured data α1, α2, L1, L2, the control device (4) calculates the difference in height between the a point and the B point (or C point) in the Z-axis direction according to the formula l11=l1×cos α1 or l21=l2×cos α2, and the Z-axis coordinates of the B point (or C point) are known, and the Z-axis coordinates of the a point are obtained by using the formula z=z2-l2×sin α2 or z=z1-l1×sin α1.
2. The method for applying the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device according to claim 1, wherein each supporting leg of the triangular bracket (1) adopts a segmented telescopic structure with a locking member.
3. The application method of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device is characterized in that the movable ball matching mechanism is a spherical bearing assembled at the abutting part of the top of the triangular bracket (1) and the lower surface of the base plate (2), and the locking device is a jackscrew coaxially assembled by a locking knob (14).
4. The application method of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device is characterized in that a dovetail chute is arranged between the lower surface of the base plate (2) and the movable ball matching mechanism, and the action locking of the dovetail chute is controlled by a jackscrew coaxially assembled with the adjusting knob (13).
5. The method for applying the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device according to claim 1, wherein the gear pair (6) comprises a driving wheel fixed on an output shaft of the first motor (5), and a driven wheel coaxially and fixedly assembled with the shaft (3) and meshed with the driving wheel.
6. The method of using the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device according to any one of claims 1, 3 or 4, further comprising an adjusting handle (16), wherein the adjusting handle (16) is fixed with the base plate (2) or a dovetail chute on the base plate (2).
7. The application method of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device according to claim 1, wherein the first inclination sensor (8) is assembled at the outer edge of the rotating plate (7).
8. The application method of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device, according to claim 1, wherein the projection of the swing rod (10) is coincident with the center of the rotating plate (7) when the swing rod is perpendicular to the rotating plate (7).
9. The application method of the adjusting and positioning mechanism of the shield tunnel contact net anchor bolt hole positioning device according to claim 1, which is characterized by further comprising a display screen capable of receiving and displaying data output by the control device (4).
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| CN202010070540.2A CN111190162B (en) | 2020-01-21 | 2020-01-21 | Adjusting and positioning mechanism of shield tunnel contact net anchor bolt hole positioning device and application thereof |
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| CN202010070540.2A CN111190162B (en) | 2020-01-21 | 2020-01-21 | Adjusting and positioning mechanism of shield tunnel contact net anchor bolt hole positioning device and application thereof |
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| CN112066948B (en) * | 2020-09-10 | 2022-05-31 | 济南蓝动激光技术有限公司 | Automatic measuring device and method for mounting position of suspension post and inclination angle of fixed bottom plate |
| CN114812322B (en) * | 2022-05-25 | 2024-05-14 | 长沙市公路桥梁建设有限责任公司 | High-precision positioning structure for tunnel blast holes and construction method thereof |
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| CN201138331Y (en) * | 2007-12-27 | 2008-10-22 | 范兴旺 | Section detector for explosion preventing laser tunnel |
| CN101943577A (en) * | 2010-08-16 | 2011-01-12 | 上海地铁盾构设备工程有限公司 | Metro tunnel fracture surface deformation detection system |
| CN208431526U (en) * | 2018-07-17 | 2019-01-25 | 云南电网有限责任公司曲靖供电局 | A kind of quick joining type rotary support device |
| CN110375711A (en) * | 2019-07-17 | 2019-10-25 | 中铁十二局集团有限公司 | Ring network trackless measurement construction method in a kind of subway tunnel |
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| CN201138331Y (en) * | 2007-12-27 | 2008-10-22 | 范兴旺 | Section detector for explosion preventing laser tunnel |
| CN101943577A (en) * | 2010-08-16 | 2011-01-12 | 上海地铁盾构设备工程有限公司 | Metro tunnel fracture surface deformation detection system |
| CN208431526U (en) * | 2018-07-17 | 2019-01-25 | 云南电网有限责任公司曲靖供电局 | A kind of quick joining type rotary support device |
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