CN214407352U - Deep hole measurement system based on triangular radius measurement method - Google Patents
Deep hole measurement system based on triangular radius measurement method Download PDFInfo
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Abstract
The utility model relates to a deep hole measurement system based on triangle radius measurement method, including the elevating platform fixing base, include: the three radius measuring laser range finders are fixedly arranged on the lifting platform fixing seat and used for measuring the distance from the emitted laser to the deep hole, and the laser emitted by the three radius measuring laser range finders is on the same section; the lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole; and the processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, measuring the distance measured by the laser distance measuring instrument according to the three radiuses, and calculating the radius of the deep hole in real time. According to the scheme, the radius of the deep hole can be calculated by adopting a triangular circumscribed circle formula on the same section through the laser emitted by the three radius measuring laser range finders.
Description
Technical Field
The utility model relates to a deep hole measurement technical field, in particular to deep hole measurement system based on triangle radius measurement method.
Background
For constructions such as power foundation towers, bridge construction and deep wells, deep holes are usually drilled according to process requirements, and because the deep holes can require different dimension specifications at different depth stages, whether the construction dimensions of the deep holes are qualified or not is usually measured by manually entering the holes. Challenges and limits on personnel safety, measurement efficiency and the like in the measurement process, so that the development of a novel deep hole measurement scheme with autonomous measurement capability has positive significance.
The name is 'a system and a device for measuring deep holes', and the application number is as follows: 202022610331.0, the method of measurement is based on the use of a laser to measure the radius, and during rotation, to measure and compensate for center offset and horizontal tilt. The method is easy to cause the problem that a measuring point is not positioned on a section in the actual measuring process, and thus measuring errors are introduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to make the measuring point can be in same cross-section when actual measurement to the internal diameter of more accurate simulation deep hole provides a deep hole measurement system based on triangle radius measurement method.
In order to realize the purpose of the utility model, the embodiment of the utility model provides a following technical scheme:
as an embodiment, a deep hole measuring system based on triangulation radius measurement includes a lifting table fixing base, including:
the three radius measuring laser range finders are fixedly arranged on the lifting platform fixing seat and used for measuring the distance from the emitted laser to the deep hole, and the laser emitted by the three radius measuring laser range finders is on the same section;
the lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole;
and the processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, measuring the distance measured by the laser distance measuring instrument according to the three radiuses, and calculating the radius of the deep hole in real time.
Furthermore, the laser ranging device further comprises an electronic level adjusting instrument which is used for adjusting the three radius measuring laser ranging instruments to a horizontal state, so that the laser emitted by the three radius measuring laser ranging instruments is not only on the same cross section, but also parallel to the horizontal plane.
Furthermore, the laser deep hole drilling machine further comprises a rotating motor which is fixedly arranged on the lifting platform fixing seat and used for driving the three radius measurement laser range finders to rotate at a constant speed, so that laser emitted by the radius measurement laser range finders can scan the inner wall of the whole circumference of the deep hole.
Furthermore, the device also comprises a horizontal sensor which is used for detecting the inclination angles of the laser emitted by the three radius measuring laser range finders and the horizontal plane and sending the detected inclination angles to the processor so as to enable the processor to correct the measuring error.
Furthermore, the laser depth measuring device further comprises a depth measuring laser range finder which is fixedly arranged on the lifting platform fixing seat and used for measuring the depth of the deep hole, and the laser emitted by the depth measuring laser range finder is perpendicular to the laser emitted by the radius measuring laser range finder.
Further, the angle between the laser light emitted from each of the radius measuring laser rangefinders is 120 °.
A deep hole measuring method based on a triangular radius measuring method comprises the following steps:
the lifting device controls the lifting platform fixing seat to descend to a set height, and the rotating motor controls the lifting platform fixing seat to rotate at a constant speed, so that laser emitted by the three radius measuring laser range finders can scan the inner wall of the whole circumference of the deep hole;
and the processor measures the distance obtained after the laser emitted by the laser range finder scans the inner wall of the deep hole according to the three radii, and calculates the radius of the deep hole in real time.
Furthermore, the processor measures distances obtained after the laser emitted by the laser range finder scans the inner wall of the deep hole according to the three radii, and calculates the radius of the deep hole in real time, wherein the step of calculating the radius of the deep hole comprises the following steps:
the three radius measurement laser range finders are respectively a first radius measurement laser range finder, a second radius measurement laser range finder and a third radius measurement laser range finder, the angle between the lasers emitted by each radius measurement laser range finder is 120 degrees, and the reverse extension lines of the lasers emitted by the three radius measurement laser range finders coincide with a point P;
the distance between the point where the laser emitted by the first radius measurement laser range finder reaches the inner wall of the deep hole and the point where the laser emitted by the second radius measurement laser range finder reaches the inner wall of the deep hole is a:
wherein d is1＝X1+Y1，d2＝X2+Y2；d1Measuring the sum of the distance X1 from the laser emitted by the laser range finder to the inner wall of the deep hole and the distance Y1 from the laser emitting point to the point P for the first radius; d2Measuring the sum of the distance X2 from the laser emitted by the laser range finder to the inner wall of the deep hole and the distance Y2 from the laser emitting point to the point P for the second radius; theta1An angle between the laser light emitted from the first radius measuring laser range finder and the laser light emitted from the second radius measuring laser range finder, and theta1120 DEG;
the distance between the point where the laser emitted by the second radius measurement laser range finder reaches the inner wall of the deep hole and the point where the laser emitted by the third radius measurement laser range finder reaches the inner wall of the deep hole is b:
wherein d is3＝X3+Y3；d3Measuring the sum of the distance X3 from the laser emitted by the laser range finder to the inner wall of the deep hole and the distance Y3 from the laser emitting point to the point P for the third radius; theta2An angle between the laser light emitted from the second radius measuring laser range finder and the laser light emitted from the third radius measuring laser range finder, and theta2120 DEG;
the distance between the point where the laser emitted by the third radius measurement laser range finder reaches the inner wall of the deep hole and the point where the laser emitted by the first radius measurement laser range finder reaches the inner wall of the deep hole is c:
θ3an angle between the laser light emitted from the third radius measuring laser range finder and the laser light emitted from the first radius measuring laser range finder, and theta3120 DEG;
and calculating the radius of the deep hole according to the distances a, b and c:
wherein r is the radius of the deep hole.
Specifically, the time for the laser emitted by the laser range finder to reach the inner wall of the deep hole is measured according to the first radius, and the distance X for the laser emitted by the laser range finder to reach the inner wall of the deep hole is obtained1, adding a distance Y1 from the emitting point of the laser emitted by the first radius measuring laser range finder to the point P to obtain d1；
According to the time that the laser emitted by the second radius measuring laser range finder reaches the inner wall of the deep hole, the distance X2 that the laser emitted by the second radius measuring laser range finder reaches the inner wall of the deep hole is obtained, and the distance Y2 that the emitting point of the laser emitted by the second radius measuring laser range finder reaches the point P is obtained by adding the distance X2 that the laser emitted by the second radius measuring laser range finder reaches the point P, so that d2；
According to the time that the laser emitted by the laser range finder reaches the inner wall of the deep hole is measured by the third radius, the distance X3 that the laser emitted by the laser range finder reaches the inner wall of the deep hole is obtained by the third radius, and the distance Y3 that the emitting point of the laser emitted by the laser range finder reaches the point P is obtained by the third radius, so that d3。
In the above solution, when three radius measuring laser distance meters are arranged on the lifting platform fixing base, the starting points of the three beams of laser emitted by the three radius measuring laser distance meters cannot be at the same point, so that if the triangulation method is used for calculation, in addition to the distance from each laser to the inner wall of the deep hole, the distance between the laser emitting point and the coincident point P of the reverse extension lines of the three beams of laser is obtained.
Preferably, the distance Y1 from the emitting point of the laser beam emitted by the first radius measuring laser range finder to the point P is equal to the distance Y2 from the emitting point of the laser beam emitted by the second radius measuring laser range finder to the point P and the distance Y3 from the emitting point of the laser beam emitted by the third radius measuring laser range finder to the point P.
Furthermore, the processor measures the distance obtained after the laser emitted by the laser range finder scans the inner wall of the deep hole according to the three radii, and before the step of calculating the radius of the deep hole in real time, the method further comprises the following steps:
the three radius measurement laser range finders are adjusted to be in a horizontal state by using an electronic horizontal adjusting instrument, so that laser emitted by the three radius measurement laser range finders is not only on the same section, but also parallel to a horizontal plane;
after the three radius measurement laser range finders are adjusted to be in a horizontal state through the electronic level adjustment instrument, the horizontal sensor is used for detecting the inclination angles between the laser emitted by the three radius measurement laser range finders and a horizontal plane, and if the inclination angles still exist, measurement error correction is carried out through the processor.
Furthermore, a depth measuring laser range finder is fixedly arranged on the lifting platform fixing seat and used for measuring the distance between the lifting platform fixing seat and the bottom of the deep hole, and the laser emitted by the depth measuring laser range finder is perpendicular to the laser emitted by the radius measuring laser range finder.
Still further, the method comprises the steps of:
the lifting device controls the lifting platform fixing seat to descend to a set height, so that laser emitted by the depth measuring laser range finder can reach the bottom of the deep hole;
and measuring the time for the laser emitted by the laser range finder to reach the bottom of the deep hole according to the depth to obtain the height of the current position of the lifting platform fixing seat in the deep hole.
As another possible implementation manner, a deep hole measuring system based on triangulation radius measurement includes a lifting platform fixing base, and includes:
more than three radius measurement laser range finders are fixedly arranged on the lifting platform fixing seat, the laser emitted by more than three radius measurement laser range finders is on the same section, and any three of the radius measurement laser range finders are used as a group of deep hole measurement systems for measuring the distance from the emitted laser to a deep hole;
the lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole;
and the processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, measuring the distance measured by the laser distance measuring instrument according to more than three radiuses, and calculating the radius of the deep hole in real time.
In the above-mentioned scheme, as a preferable mode, three or more (not including three) radius measuring laser range finders may be used to measure the inner diameter of the deep hole, and during measurement, any three radius measuring laser range finders are used as a group of deep hole measuring system, and the deep hole inner diameter is measured and calculated by using the above-mentioned deep hole measuring method, so as to obtain a plurality of groups of deep hole inner diameter data, and then the average value of the plurality of groups of deep hole inner diameter data is obtained as the final calculated deep hole inner diameter. The inner diameter of the deep hole is obtained by a triangulation radius measurement method for multiple times, and finally the average value is taken as a result, so that the error of the measurement of the inner diameter of the deep hole can be reduced, and the measurement precision is improved.
Compared with the prior art, the beneficial effects of the utility model are that:
the laser that this scheme was launched through three radius measurement laser range finder is on same cross-section, can be better after making laser scanning deep hole internal diameter obtain the deep hole internal diameter.
According to the scheme, three distance values of the laser emitted by the same section are obtained at the same time, the radius of the section of the deep hole to be measured can be obtained according to a correlation formula, and the problem that the section is inconsistent when the three radius values are measured due to deflection of a measuring platform when a laser range finder measures 3 radius values at different moments does not exist.
This scheme makes the laser that three radius measurement laser range finder launched not only on same cross-section, this cross-section still is parallel with horizontal plane (the horizontal direction) through setting up the electronic level adjustment appearance, enables the deep hole internal diameter of measurement like this and is regular circular, makes the mode of calculating the deep hole radius simpler.
According to the scheme, the horizontal sensor is arranged, whether the cross section of laser emitted by the three radius measurement laser range finders is parallel to the horizontal plane or not is detected in real time, and if the inclination angle exists, the three radius measurement laser range finders can be adjusted on the horizontal plane in time through the electronic horizontal adjusting instrument; or correcting the simulated deep hole inner diameter error according to the detected inclination angle to make the simulated deep hole inner diameter error be a regular circle.
According to the scheme, the inner diameters of the deep holes are measured by a plurality of (more than three) radius measuring laser range finders, any three radius measuring laser range finders are used as a group of deep hole measuring systems during measurement, a triangular radius measuring method is used for obtaining a plurality of groups of deep hole inner diameter data, and finally the average value is used as the measured deep hole inner diameter, so that the measuring error is reduced as much as possible.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of the present invention for calculating the radius of a deep hole according to the simulated inner diameter circle of the deep hole;
fig. 2 is a schematic diagram of deep hole radius calculation of the deep hole measuring method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Also, in the description of the present invention, the terms "first," "second," and the like are used solely for distinguishing between the descriptions and not necessarily for indicating or implying any actual such relationship or order between such entities or operations.
Example 1:
the utility model discloses a following technical scheme realizes, as shown in fig. 1, a deep hole measurement system based on triangle radius measurement method, including elevating platform fixing base, three radius measurement laser range finder, a hoisting device, a treater, wherein:
the three radius measurement laser range finders are all fixedly arranged on the lifting platform fixing base and used for measuring the distance from emitted laser to the deep hole in real time, and the laser emitted by the three radius measurement laser range finders is on the same section. The distance from the laser to the deep hole is the distance from the starting point of the laser emitted by the laser range finder to the inner wall of the deep hole.
In each measurement process, the measurement system measures and calculates the inner diameter of the deep hole in real time, so that a plurality of deep hole radius data can be obtained at the deep hole at the same height, and certainly, a plurality of deep hole radius data can also be obtained in the whole measurement process.
For example, at the depth height h, N deep hole radius data are obtained in real time, and a slight difference may exist between the N deep hole radius data, so that the N deep hole radius data can be averaged to be used as the final measured deep hole radius at the height.
The lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole, and therefore the lifting platform fixing seat drives the three radius measurement laser range finders to move in the vertical direction in the deep hole. Because along with the change of deep hole degree of depth, the radius of deep hole probably also can change, consequently make the elevating platform fixing base move in the deep hole vertical direction, enable the deep hole radius of three radius measurement laser range finders measurement different degree departments simultaneously.
The processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, and calculating the radius of the deep hole in real time according to the distance measured by the three radius measuring laser range finders.
In a preferred embodiment, the angle between the laser beams emitted by each of the radius measuring laser rangefinders is 120 °, as shown in fig. 1, so that the laser beams emitted by each of the radius measuring laser rangefinders can be averaged as much as possible. Assuming that the three radius measurement laser range finders are respectively a first radius measurement laser range finder, a second radius measurement laser range finder and a third radius measurement laser range finder, because the three beams of laser are on the same cross section, the angle between the laser emitted by the first radius measurement laser range finder and the laser emitted by the second radius measurement laser range finder is 120 °, the angle between the laser emitted by the second radius measurement laser range finder and the laser emitted by the third radius measurement laser range finder is 120 °, and similarly, the angle between the laser emitted by the third radius measurement laser range finder and the laser emitted by the first radius measurement laser range finder is also 120 °.
Because two known straight lines can form a plane, two beams of laser emitted by any two radius measuring laser range finders form a plane, and then the laser emitted by the third radius measuring laser range finder is also in the plane, the lasers emitted by the three radius measuring laser range finders are on the same section.
This scheme uses the electronic level adjustment appearance with three radius measurement laser range finder adjusts to the horizontality for the laser that three radius measurement laser range finder launched is not only on same cross-section, still parallel with the horizontal plane. Thus, when the inner diameter of the deep hole is measured, a triangle is formed by three points of the laser emitted by the laser range finder reaching the inner wall of the deep hole according to the three radii, and the only circumscribed circle determined by the triangle is taken as the section of the inner diameter of the deep hole. With the electronic level-meter, the cross-section of the three points is regular circle instead of ellipse.
For example, as shown in fig. 1, when the cross section formed by the laser emitted by the three radius measurement laser range finders is parallel to the horizontal plane, the circumscribed circle of the triangle formed by the points where the three beams of laser reach the inner wall of the deep hole coincides with the circle of the cross section of the deep hole, and at this time, even if the center of the three radius measurement laser range finders is not located at the center of the circumscribed circle, the cross-section circle of the deep hole corresponding to the cross section at which the three beams of laser are located can be obtained according to the circumscribed circle of the triangle. If the lifting platform fixing seat has an inclination angle with respect to the horizontal plane, the cross section where the points reaching the inner wall of the deep hole according to the three beams of laser light are located is elliptical, and the inner diameter of the deep hole is not convenient to calculate.
When the three radius measuring laser range finders measure the distance from the emitted laser to the inner wall of the deep hole, the lifting table fixing seat is rotated at a constant speed through the rotating motor, so that the laser emitted by the three radius measuring laser range finders can scan the whole circumference of the inner wall of the deep hole, and the inner diameter of the deep hole can be better evaluated.
Even after the electronic level adjustment instrument is used for adjusting the three radius measurement laser range finders to be in a horizontal state, the three radius measurement laser range finders are not completely in the horizontal state due to other external factors, so that the horizontal sensor is used for detecting the inclination angles between the laser emitted by the three radius measurement laser range finders and the horizontal plane, the detected inclination angles are sent to the processor, the processor makes up the ellipse into a circle according to the inclination angles detected by the horizontal sensor, and then the radius of the deep hole is calculated to correct the measurement error.
The depth of deep hole can also be detected except that the radius of deep hole can be detected to this scheme, sets up laser range finder simultaneously on the elevating platform fixing base for measure the degree of depth of deep hole, and the laser of degree of depth measurement laser range finder transmission with the laser mutually perpendicular of radius measurement laser range finder transmission. Under the optimal mode, through the detection of level sensor, make electronic level appearance adjustment elevating platform fixing base parallel with the horizontal plane, the laser that degree of depth measurement laser range finder launched just can penetrate the bottom of deep hole perpendicularly so to obtain the deep hole degree of depth according to the time that the laser reflection is come back.
It should be noted here that the distance measuring principle of the radius measuring laser distance measuring instrument and the depth measuring laser distance measuring instrument is the same, and the distance of the laser path is calculated according to the time of the laser emitted to reach the obstacle and then reflected back.
When the lifting device enables the lifting platform fixing seat to enter the deep hole to a certain height, the measured radius is the radius of the inner wall of the deep hole at the height of the lifting platform fixing seat, and the depth of the deep hole measured in the same way is the distance between the position of the lifting platform fixing seat and the bottom of the deep hole.
For how to calculate the borehole radius according to the distance from the laser emitted by the laser range finder to the borehole inner wall and the section circle of the borehole inner wall scanned by the laser, please refer to example 2.
Example 2:
on the basis of embodiment 1, a deep hole measuring method based on a triangulation radius measurement method is provided, which comprises the following steps:
step S1: lifting device control elevating platform fixing base descends to setting for the height, and rotating electrical machines control elevating platform fixing base is at the uniform velocity rotatory for the laser of three radius measurement laser range finder transmission can scan the all around inner wall of deep hole.
Step S2: and the processor measures the distance obtained after the laser emitted by the laser range finder scans the inner wall of the deep hole according to the three radii, and calculates the radius of the deep hole in real time.
Before calculation, the three radius measurement laser distance meters are adjusted to be in a horizontal state by using an electronic level adjustment instrument, so that laser emitted by the three radius measurement laser distance meters is not only on the same cross section, but also parallel to a horizontal plane.
After the three radius measurement laser range finders are adjusted to be in a horizontal state through the electronic level adjustment instrument, the horizontal sensor is used for detecting the inclination angles between the laser emitted by the three radius measurement laser range finders and a horizontal plane, and if the inclination angles still exist, measurement error correction is carried out through the processor.
The three radius measurement laser range finders are respectively a first radius measurement laser range finder, a second radius measurement laser range finder and a third radius measurement laser range finder, the angle between the lasers emitted by each radius measurement laser range finder is 120 degrees, and the reverse extension lines of the lasers emitted by the three laser range finders coincide with a point P.
When the three radius measuring laser range finders are arranged on the lifting platform fixing base, as shown in fig. 2, the starting points of the three beams of laser emitted by the three radius measuring laser range finders are not at the same point, so that when the triangulation method is used for calculation, the distance between the laser emitting point and the coincident point P of the reverse extension lines of the three beams of laser is obtained in addition to the distance between the laser emitting point and the inner wall of the deep hole.
Referring to fig. 2, the distance between the point where the laser beam emitted from the first radius measurement laser range finder reaches the inner wall of the deep hole and the point where the laser beam emitted from the second radius measurement laser range finder reaches the inner wall of the deep hole is a:
wherein, d1＝X1+Y1，d2＝X2+Y2；d1Measuring the sum of the distance X1 from the laser emitted by the laser range finder to the inner wall of the deep hole and the distance Y1 from the laser emitting point to the point P for the first radius; d2Measuring the sum of the distance X2 from the laser emitted by the laser range finder to the inner wall of the deep hole and the distance Y2 from the laser emitting point to the point P for the second radius; theta1An angle between the laser light emitted from the first radius measuring laser range finder and the laser light emitted from the second radius measuring laser range finder, and theta1120 DEG;
the distance between the point where the laser emitted by the second radius measurement laser range finder reaches the inner wall of the deep hole and the point where the laser emitted by the third radius measurement laser range finder reaches the inner wall of the deep hole is b:
wherein d is3＝X3+Y3；d3Measuring the sum of the distance X3 from the laser emitted by the laser range finder to the inner wall of the deep hole and the distance Y3 from the laser emitting point to the point P for the third radius; theta2An angle between the laser light emitted from the second radius measuring laser range finder and the laser light emitted from the third radius measuring laser range finder, and theta2120 DEG;
the distance between the point where the laser emitted by the third radius measurement laser range finder reaches the inner wall of the deep hole and the point where the laser emitted by the first radius measurement laser range finder reaches the inner wall of the deep hole is c:
θ3an angle between the laser light emitted from the third radius measuring laser range finder and the laser light emitted from the first radius measuring laser range finder, and theta3120 DEG;
and calculating the radius of the deep hole according to the distances a, b and c:
wherein r is the radius of the deep hole.
Specifically, according to the time of the laser emitted by the first radius measuring laser range finder reaching the inner wall of the deep hole, the distance X1 of the laser emitted by the first radius measuring laser range finder reaching the inner wall of the deep hole is obtained, and the distance Y1 of the emitting point of the laser emitted by the first radius measuring laser range finder reaching the P point is obtained to obtain d1；
According to the time that the laser emitted by the second radius measuring laser range finder reaches the inner wall of the deep hole, the distance X2 that the laser emitted by the second radius measuring laser range finder reaches the inner wall of the deep hole is obtained, and the distance Y2 that the emitting point of the laser emitted by the second radius measuring laser range finder reaches the point P is obtained by adding the distance X2 that the laser emitted by the second radius measuring laser range finder reaches the point P, so that d2；
According to the time that the laser emitted by the laser range finder reaches the inner wall of the deep hole is measured by the third radius, the distance X3 that the laser emitted by the laser range finder reaches the inner wall of the deep hole is obtained by the third radius, and the distance Y3 that the emitting point of the laser emitted by the laser range finder reaches the point P is obtained by the third radius, so that d3。
Preferably, the distance Y1 from the emitting point of the laser emitted by the first radius measuring laser range finder to the point P is equal to the distance Y2 from the emitting point of the laser emitted by the second radius measuring laser range finder to the point P and the distance Y3 from the emitting point of the laser emitted by the third radius measuring laser range finder to the point P, so that the weight of the three radius measuring laser range finders arranged on the lifting table fixing base can be balanced.
Step S3: the lifting device controls the lifting platform fixing seat to descend to a set height, so that laser emitted by the depth measuring laser range finder can reach the bottom of the deep hole; and measuring the time for the laser emitted by the laser range finder to reach the bottom of the deep hole according to the depth to obtain the height of the current position of the lifting platform fixing seat in the deep hole.
Example 3:
based on the systems and methods provided in embodiments 1 and 2, the present embodiment further provides a deep hole measuring system based on a triangulation radius measurement method, including a lifting table fixing base, and characterized in that: the method comprises the following steps:
more than three radius measurement laser range finders are fixedly arranged on the lifting platform fixing seat, the laser emitted by more than three radius measurement laser range finders is on the same section, and any three of the radius measurement laser range finders are used as a group of deep hole measurement systems for measuring the distance from the emitted laser to a deep hole;
the lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole;
and the processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, measuring the distance measured by the laser distance measuring instrument according to more than three radiuses, and calculating the radius of the deep hole in real time.
In this embodiment, more than three (not including three) radius measurement laser range finders are used to measure the inner diameter of the deep hole, and during measurement, any three radius measurement laser range finders are used as a group of deep hole measurement systems, and the deep hole inner diameter is measured and calculated by using the deep hole measurement method, so as to obtain multiple groups of deep hole inner diameter data, and then the average value of the multiple groups of deep hole inner diameter data is obtained and used as the final calculated deep hole inner diameter. The inner diameter of the deep hole is obtained by a triangulation radius measurement method for multiple times, and finally the average value is taken as a result, so that the error of the measurement of the inner diameter of the deep hole can be reduced, and the measurement precision is improved.
It should be noted that, in example 2, when the inside diameter of the borehole is calculated by using the triangulation radius measurement method, it is specified that all angles between the laser beams emitted by the three radius measuring laser range finders are 120 °, but in this embodiment, since there are three or more radius measuring laser range finders, it is possible that the angle between the laser beams emitted by each two radius measuring laser range finders is no longer 120 °, but as long as the angle θ between the laser beams is known, it can be calculated by using the triangulation radius measurement method.
Therefore, during each measurement and calculation, three of the laser range finders for measuring the radius are randomly selected as a group of deep hole measuring systems to calculate and obtain data of the inner diameter of one deep hole, and finally the finally measured inner diameter of the deep hole is obtained in a mode of solving an average value, so that the measurement error can be further reduced.
Please refer to example 1 and example 2 for other contents not mentioned in this example.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a deep hole measurement system based on triangle radius measurement method, includes the elevating platform fixing base, its characterized in that: the method comprises the following steps:
the three radius measuring laser range finders are fixedly arranged on the lifting platform fixing seat and used for measuring the distance from the emitted laser to the deep hole, and the laser emitted by the three radius measuring laser range finders is on the same section;
the lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole;
and the processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, measuring the distance measured by the laser distance measuring instrument according to the three radiuses, and calculating the radius of the deep hole in real time.
2. The deep hole measuring system based on the triangulation radius measurement method as claimed in claim 1, wherein: the laser ranging device comprises three radius measurement laser range finders and is characterized by further comprising an electronic horizontal adjusting instrument, wherein the three radius measurement laser range finders are adjusted to be in a horizontal state, and laser emitted by the three radius measurement laser range finders is not only on the same cross section, but also parallel to the horizontal plane.
3. The deep hole measuring system based on the triangulation radius measurement method as claimed in claim 1, wherein: the laser ranging device is characterized by further comprising a rotating motor which is fixedly arranged on the lifting platform fixing seat and used for driving the three radius measuring laser range finders to rotate at a constant speed, so that laser emitted by the radius measuring laser range finders can scan the inner wall of the whole circumference of the deep hole.
4. The deep hole measuring system based on the triangulation radius measurement method as claimed in claim 2, wherein: the laser distance measuring device also comprises a horizontal sensor which is used for detecting the inclination angles between the laser emitted by the three radius measuring laser distance measuring instruments and the horizontal plane and sending the detected inclination angles to the processor so as to enable the processor to correct the measuring errors.
5. The deep hole measuring system based on the triangulation radius measurement method as claimed in claim 1, wherein: the angle between the laser light emitted by each radius measuring laser rangefinder was 120 °.
6. The utility model provides a deep hole measurement system based on triangle radius measurement method, includes the elevating platform fixing base, its characterized in that: the method comprises the following steps:
more than three radius measurement laser range finders are fixedly arranged on the lifting platform fixing seat, the laser emitted by more than three radius measurement laser range finders is on the same section, and any three of the radius measurement laser range finders are used as a group of deep hole measurement systems for measuring the distance from the emitted laser to a deep hole;
the lifting device is connected with the lifting platform fixing seat and used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole;
and the processor is used for controlling the lifting platform fixing seat to move in the vertical direction in the deep hole through the lifting device, measuring the distance measured by the laser distance measuring instrument according to more than three radiuses, and calculating the radius of the deep hole in real time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120836073.XU CN214407352U (en) | 2021-04-22 | 2021-04-22 | Deep hole measurement system based on triangular radius measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120836073.XU CN214407352U (en) | 2021-04-22 | 2021-04-22 | Deep hole measurement system based on triangular radius measurement method |
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| CN214407352U true CN214407352U (en) | 2021-10-15 |
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| CN202120836073.XU Expired - Fee Related CN214407352U (en) | 2021-04-22 | 2021-04-22 | Deep hole measurement system based on triangular radius measurement method |
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- 2021-04-22 CN CN202120836073.XU patent/CN214407352U/en not_active Expired - Fee Related
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