Rock dimension parameter measuring device

Abstract

The utility model provides a rock dimension parameter measuring device, and belongs to the technical field of rock mechanics measurement. The rock dimension parameter measuring device comprises a fixing frame, a clamping mechanism, a moving mechanism and a distance measuring mechanism, the clamping mechanism comprises a moving frame connected with the moving mechanism and a clamping assembly arranged on the moving frame. The clamping assembly comprises two clamping heads which are symmetrically arranged and used for clamping rocks in the first direction. The moving mechanism is arranged on the fixing frame and used for driving the moving frame to move horizontally in the first direction. The distance measuring mechanism is arranged on the fixing frame and comprises two laser distance measuring instruments symmetrically arranged on the two sides of the clamping assembly, and the laser emitting directions of the two laser distance measuring instruments are opposite. The straight line connecting the two laser range finders and the straight line connecting the two clamping heads intersect and are perpendicular to each other. By means of the mode, the rock size parameter measuring device can efficiently and accurately measure the size parameters of different positions of the rock, and the integrity of the rock can be well maintained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rock mechanics measurement, and particularly relates to a rock size parameter measurement device. BACKGROUND

[0002] Rock mechanics test and test aim to understand the mechanical properties, deformation and failure law of rock and rock mass, and provide required parameters for engineering design and construction. In the test process, due to different sizes of the test rock and irregular surface shape, the size parameters of the test rock need to be accurately measured to ensure the accuracy of the experimental results.

[0003] In the size parameter measurement of irregular rock samples, the existing method mainly uses vernier caliper or micrometer to measure. However, due to the large error of manual estimation, large errors are easily generated in experimental data recording and calculation, which affects the accuracy of measurement. At the same time, when the rock is clamped, the edge part of the rock is easily touched, which causes the rock to break and fall off, and easily affects the integrity of the rock.

[0004] Therefore, it is necessary to design an improved rock size parameter measurement device to solve the above problems. CONTENT OF THE INVENTION

[0005] In view of the technical problems in the background art, the present application provides a rock size parameter measurement device, which can efficiently and accurately measure the size parameters of rocks at different positions, and can better maintain the integrity of the rock.

[0006] The rock size parameter measurement device provided by the present application comprises a fixing frame, a clamping mechanism, a moving mechanism and a distance measuring mechanism.

[0007] The clamping mechanism comprises a moving frame connected with the moving mechanism and a clamping assembly arranged on the moving frame; the clamping assembly comprises two clamping heads symmetrically arranged, which are used for clamping the rock in a first direction.

[0008] The moving mechanism is arranged on the fixing frame and is used for driving the moving frame to translate along the first direction.

[0009] The distance measuring mechanism is arranged on the fixing frame and comprises two laser range finders symmetrically arranged on both sides of the clamping assembly, and the laser emission directions of the two laser range finders are opposite; a straight line connecting the two laser range finders intersects and is perpendicular to a straight line connecting the two clamping heads.

[0010] In the technical scheme of the embodiment of the present application, the rock is clamped by the clamping mechanism, the distance between the laser range finder and the rock is measured, the distance between the two measuring points corresponding to the laser range finder on the rock is calculated, the moving mechanism drives the moving frame to translate, the position of the measuring point is changed, and the size of different positions in the measuring surface is measured. Moreover, the size data in different measuring surfaces can be measured by changing the clamping mode of the clamping mechanism. Compared with the measurement mode of the vernier caliper, the measurement method provided in the embodiment of the present application is more accurate, the laser ranging is nondestructive measurement, the rock will not fall off, and the integrity of the rock can be better ensured.

[0011] In some embodiments, the clamping assembly further comprises two fixed columns threadedly connected with the two clamping heads respectively; the two fixed columns are connected with the moving frame respectively, and the clamping head can move relative to the fixed column along the first direction.

[0012] In the embodiment, the clamping head is connected with the fixed column through screw threads, the clamping head can be rotated to move along the first direction, and thus the distance between the two clamping heads can be effectively adjusted to stably clamp the rock.

[0013] In some embodiments, the clamping head is sleeved on the outside of the fixed column, the outside of the clamping head is provided with anti-skid lines, and the end of the clamping head away from the fixed column is conical.

[0014] In the embodiment, the anti-skid lines are arranged on the outside of the clamping head, which facilitates the rotation of the clamping head; meanwhile, the conical end of the clamping head facilitates the clamping of small rocks and is conducive to the stable clamping of the rock.

[0015] In some embodiments, one end of the fixed column away from the clamping head is connected with the moving frame through a mounting sleeve.

[0016] In the embodiment, the mounting sleeve is arranged on the moving frame, the fixed column is connected with the moving frame through the mounting sleeve, the fixed column can be easily disassembled, and the stability of the fixed column can be ensured in the assembled state.

[0017] In some embodiments, the moving mechanism comprises a threaded screw rod extending along the first direction and a motor for driving the threaded screw rod to rotate; and the moving frame is threadedly connected with the threaded screw rod.

[0018] In the embodiment, the moving frame can be translated along the first direction by the rotation of the threaded screw rod through the screw rod transmission, so as to measure the size of different positions of the rock.

[0019] In some embodiments, the moving mechanism further includes guide rods disposed on both sides of the threaded screw, the axial direction of the guide rods being parallel to the axial direction of the threaded screw, and the moving frame being slidably connected to the guide rods.

[0020] In this embodiment, by setting a guide rod, the mobile frame can be guided during its movement, thereby increasing the stability of the movement process.

[0021] In some embodiments, a protective cover is provided on the outside of the motor, and the protective cover is connected to the fixing frame; side plates are provided on both sides of the bottom of the fixing frame, and connection holes are provided on the side plates.

[0022] In this embodiment, the motor can be effectively protected by a protective cover; and the side plate with connection holes makes it easy to fix the mounting bracket to the workbench.

[0023] In some embodiments, the ranging mechanism further includes two mounting brackets symmetrically arranged on both sides of the clamping assembly. The mounting brackets are connected to the fixing bracket via connecting rods, and the inner side of the mounting bracket is provided with a mounting hole for mounting the laser rangefinder.

[0024] In this embodiment, by setting up a mounting bracket, the laser rangefinder can be stably installed inside the mounting bracket to ensure the stability of the ranging process.

[0025] In some embodiments, a control panel electrically connected to the laser rangefinder is provided on the outer side of the mounting bracket.

[0026] In this embodiment, a control panel is provided to facilitate the control of the laser rangefinder and to display the measurement results of the laser rangefinder.

[0027] In some embodiments, a fixing plate is provided at the end of the connecting rod, and the fixing plate is connected to the fixing frame by bolts.

[0028] In this embodiment, by fixing the connecting rod with a fixing plate, the stability of the laser rangefinder in the mounting frame can be further improved.

[0029] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0031] Figure 1 A three-dimensional structural schematic diagram of the rock size parameter measuring device provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the main structure of the rock size parameter measuring device provided in the embodiments of this application;

[0033] Figure 3 This is a schematic diagram of the clamping mechanism in the rock size parameter measuring device provided in the embodiments of this application;

[0034] Figure 4 This is a schematic diagram of the distance measuring mechanism in the rock size parameter measuring device provided in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Fixed frame; 11. Side plate; 111. Connecting hole; 2. Clamping mechanism; 21. Moving frame; 22. Fixed column; 23. Clamping head; 231. Anti-slip texture; 24. Mounting sleeve; 31. Motor; 32. Threaded screw; 33. Guide rod; 34. Protective cover; 41. Laser rangefinder; 42. Mounting frame; 421. Mounting hole; 43. Connecting rod; 44. Fixed plate; 45. Control panel. Detailed Implementation

[0036] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0042] The conventional method of measuring the size of rock samples using vernier calipers has a large error. In addition, the rock needs to be clamped during each measurement, which can easily touch the edge of the rock, causing it to break and fall off, thus affecting the integrity of the rock.

[0043] To address the technical problems of large errors and easy impact on rock integrity caused by the above-mentioned measurement methods, this application provides a rock size parameter measuring device. By setting a clamping mechanism 2 to clamp the rock, and then using a laser rangefinder 41 to perform non-destructive measurement, the size of the rock at different locations can be accurately measured without damaging the rock integrity.

[0044] Specifically, this application provides a rock size parameter measuring device, including a fixed frame 1, a clamping mechanism 2, a moving mechanism and a ranging mechanism;

[0045] The clamping mechanism 2 includes a movable frame 21 connected to the moving mechanism and a clamping assembly disposed on the movable frame 21; the clamping assembly includes two symmetrically arranged clamping heads 23 for clamping the rock in a first direction;

[0046] The moving mechanism is mounted on the fixed frame 1 and is used to drive the moving frame 21 to translate along the first direction;

[0047] The ranging mechanism is mounted on the fixed frame 1 and includes two laser rangefinders 41 symmetrically arranged on both sides of the clamping assembly. The laser emission directions of the two laser rangefinders 41 are opposite to each other. The straight line connecting the two laser rangefinders 41 intersects and is perpendicular to the straight line connecting the two clamping heads 23.

[0048] In the above manner, the plane containing the straight line connecting the two laser rangefinders 41 and the straight line connecting the two clamping heads 23 is the measurement surface. By using the clamping mechanism 2 to clamp the rock in the first direction, the laser rangefinder 41 can measure the dimensions on the measurement surface of the rock in the second direction perpendicular to the first direction. Furthermore, by using a moving mechanism to drive the moving frame 21 to translate, dimensions at different positions on the measurement surface can be measured. Subsequently, by changing the clamping method of the clamping mechanism 2 on the rock, new measurement surfaces can be placed at different positions on the rock, allowing for the measurement of dimensions at different positions. This embodiment of the application uses a laser rangefinder 41 for dimension measurement, which not only provides accurate results but also ensures the rock's integrity by eliminating the need for the laser rangefinder 41 to contact the rock.

[0049] Furthermore, please refer to the following: Figures 1-2 In some embodiments of this application, the fixing frame 1 includes a base and a vertically arranged fixing plate, preferably in a vertical direction. Based on this, the moving mechanism is arranged vertically to drive the moving frame 21 to move vertically; the measuring mechanism is arranged on the left and right sides of the clamping mechanism 2. With this arrangement, when the clamping mechanism 2 is at a certain height, it clamps the rock, and the width (horizontal dimension) of the rock's measuring surface at the corresponding height can be measured using the laser rangefinder 41. Then, by adjusting the height of the clamping mechanism 2 through the moving mechanism, the width of the rock at different heights can be measured. Furthermore, by changing the clamping method of the clamping mechanism 2, the width data of other measuring surfaces of the rock can be measured.

[0050] Furthermore, in some embodiments of this application, side plates 11 are provided on both sides of the bottom of the fixing frame 1, and connecting holes 111 are provided on the side plates 11 so that corresponding connectors can be provided through the connecting holes 111 to fix the side plates 11 on the workbench, thereby so that the fixing frame 1 as a whole can be stably fixed on the workbench.

[0051] Furthermore, in some embodiments of this application, the moving mechanism includes a threaded screw 32 extending vertically and a motor 31 for driving the threaded screw 32 to rotate, the output shaft of which is connected to the threaded screw 32; the moving frame 21 is threadedly connected to the threaded screw 32. With this configuration, the threaded screw 32, driven by the motor 31, can drive the moving frame 21 to translate vertically via screw transmission, thereby facilitating the measurement of dimensional data of rocks at different heights.

[0052] Furthermore, in some embodiments of this application, the moving mechanism further includes guide rods 33 disposed on both sides of the threaded screw 32. The axial direction of the guide rods 33 is parallel to the axial direction of the threaded screw 32. The moving frame 21 is slidably connected to the guide rods 33 so that the guide rods 33 can guide the moving frame 21 during translation, thereby increasing the stability of the moving process.

[0053] Furthermore, in some embodiments of this application, a protective cover 34 is also provided on the outside of the motor 31. The protective cover 34 is connected to the fixing frame 1 to protect the motor 31 and to support it. Preferably, the protective cover 34 can be provided on the top of the fixing frame 1, and the end of the threaded rod 32 and the guide rod 33 away from the motor 31 can be connected to the base of the fixing frame 1.

[0054] Furthermore, please refer to the following: Figure 3 In some embodiments of this application, the clamping assembly further includes two fixed posts 22 that are threadedly connected to the two clamping heads 23 respectively, and the two fixed posts 22 are respectively connected to the movable frame 21; by rotating the clamping head 23, the clamping head 23 can be moved relative to the fixed post 22 in the vertical direction so as to stably clamp the rock.

[0055] More specifically, the outer side of the fixing post 22 is provided with external threads, and the inner side of the clamping head 23 is provided with internal threads. By connecting the internal thread of the clamping head 23 with the external thread of the fixing post 22, the clamping head 23 is fitted onto the outer side of the fixing post 22. The outer side of the clamping head 23 is provided with anti-slip texture 231, and the end of the clamping head 23 away from the fixing post 22 is tapered. The anti-slip texture 231 makes it easier to screw the clamping head 23, and the tapered end of the clamping head 23 not only facilitates clamping smaller rocks but also helps to clamp the rocks stably. More preferably, a rubber tapered anti-slip sleeve can also be fitted onto the end of the clamping head 23 to prevent slippage when clamping rocks without being too sharp, thus enabling more stable clamping of rocks. Furthermore, since a large amount of data can be measured by moving the object during a single clamping operation, the location on the rock that is easier to clamp and less prone to breakage can be selected to ensure the integrity of the rock.

[0056] Furthermore, in some embodiments of this application, the end of the fixing post 22 furthest from the clamping head 23 is connected to the movable frame 21 via a mounting sleeve 24. The mounting sleeve 24 is fixed to the upper and lower parts of the front side of the movable frame 21. By fitting the end of the fixing post 22 inside the mounting sleeve 24 and securing it with bolts, the installation and disassembly of the fixing post 22 is facilitated, and the stability of the fixing post 22 in the installed state is improved.

[0057] Furthermore, please refer to the following: Figure 4 In some embodiments of this application, the ranging mechanism further includes two mounting brackets 42 symmetrically arranged on both sides of the clamping assembly. The mounting brackets 42 are connected to the fixing frame 1 via connecting rods 43. A mounting hole 421 for mounting a laser rangefinder 41 is provided on the inner side of the mounting bracket 42. By mounting the laser rangefinder 41 in this mounting hole 421, the stability of its ranging process can be ensured. More preferably, a control panel 45 electrically connected to the laser rangefinder 41 can also be provided on the outer side of the mounting bracket 42 to control the laser rangefinder 41 and display its ranging results.

[0058] Furthermore, in some embodiments of this application, the connecting rod 43 includes four rods, which are respectively disposed on the upper and lower parts of each mounting frame 42, and the ends of the four connecting rods 43 are respectively provided with fixing plates 44. The fixing plates 44 can be distributed on the four corners of the mounting frame 1, and the fixing plates 44 can be stably connected to the mounting frame 1 by bolt connection, so as to improve the stability of the mounting frame 42 and the laser rangefinder 41 in the mounting frame 42.

[0059] The measurement process of a rock size parameter measuring device provided in the embodiments of this application is described below:

[0060] S1. According to the size of the test rock to be measured, adjust the relative distance between the upper and lower clamping heads 23 so that they rotate on the outer thread of the fixed column 22. Place the test rock to be measured between the upper and lower clamping heads 23, and continue to rotate the upper clamping head 23 to clamp the rock tightly. Then, measure the distance to the rock using the two laser rangefinders 41. Subtract the sum of the distances measured by the two laser rangefinders 41 from the distance between the two laser rangefinders 41 to obtain the size data of the rock. This data is the horizontal dimension of the rock at a certain height on a certain measuring surface.

[0061] S2. The screw 32 is driven to rotate by the motor 31, which causes the moving frame 21 to move up and down, thereby moving the rock's vertical position. Then, the dimensions at different heights are measured in the manner described in step S1, and the horizontal dimensions at different heights in the above-mentioned measurement surface can be obtained.

[0062] S3. By rotating the upper clamping head 23 to move it upwards, the rock is removed and then repositioned between the two clamping heads 23. Measurements are then performed as described in steps S1-S2 to obtain the horizontal dimensions at different heights on the new measurement surface. By continuously adjusting the rock's position, horizontal dimensions at different heights on different measurement surfaces can be obtained. This not only comprehensively reflects the rock's dimensional data but also reduces errors encountered when using a handheld vernier caliper, resulting in more accurate results. Furthermore, the laser rangefinder 41 does not need to contact the rock, which helps maintain the rock's integrity during the measurement process.

[0063] In summary, this application provides a rock size parameter measuring device, belonging to the field of rock mechanics measurement technology. The rock size parameter measuring device includes a fixed frame 1, a clamping mechanism 2, a moving mechanism, and a ranging mechanism. The clamping mechanism 2 includes a moving frame 21 connected to the moving mechanism and a clamping assembly mounted on the moving frame 21. The clamping assembly includes two symmetrically arranged clamping heads 23 for clamping the rock in a first direction. The moving mechanism is mounted on the fixed frame 1 and drives the moving frame 21 to translate along the first direction. The ranging mechanism is mounted on the fixed frame 1 and includes two laser rangefinders 41 symmetrically arranged on both sides of the clamping assembly, with the laser emission directions of the two laser rangefinders 41 facing each other. The straight line connecting the two laser rangefinders 41 intersects and is perpendicular to the straight line connecting the two clamping heads 23. Through the above method, the rock size parameter measuring device provided by this application can efficiently and accurately measure the size parameters of the rock at different locations and can better maintain the integrity of the rock.

[0064] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A device for measuring rock size parameters, characterized in that, Includes a fixed frame, a clamping mechanism, a moving mechanism, and a ranging mechanism; The clamping mechanism includes a movable frame connected to the movable mechanism and a clamping assembly disposed on the movable frame; the clamping assembly includes two symmetrically arranged clamping heads for clamping the rock in a first direction; The moving mechanism is mounted on the fixed frame and is used to drive the moving frame to translate along the first direction; The ranging mechanism is mounted on the fixed frame and includes two laser rangefinders symmetrically arranged on both sides of the clamping assembly, with the laser emission directions of the two laser rangefinders facing each other; the straight line connecting the two laser rangefinders intersects and is perpendicular to the straight line connecting the two clamping heads.

2. The rock size parameter measuring device according to claim 1, characterized in that, The clamping assembly further includes two fixed posts that are threadedly connected to the two clamping heads respectively; the two fixed posts are respectively connected to the movable frame, and the clamping heads can move relative to the fixed posts along the first direction.

3. The rock size parameter measuring device according to claim 2, characterized in that, The clamping head is sleeved on the outside of the fixing post, and the outside of the clamping head is provided with anti-slip texture. The end of the clamping head away from the fixing post is tapered.

4. The rock size parameter measuring device according to claim 2, characterized in that, The end of the fixed column furthest from the clamping head is connected to the movable frame via a mounting sleeve.

5. The rock size parameter measuring device according to claim 1, characterized in that, The moving mechanism includes a threaded screw extending along the first direction and a motor for driving the threaded screw to rotate; the moving frame is threadedly connected to the threaded screw.

6. The rock size parameter measuring device according to claim 5, characterized in that, The moving mechanism further includes guide rods disposed on both sides of the threaded screw, the axial direction of the guide rods being parallel to the axial direction of the threaded screw, and the moving frame being slidably connected to the guide rods.

7. The rock size parameter measuring device according to claim 5, characterized in that, The motor is provided with a protective cover on its outer side, and the protective cover is connected to the fixing frame; the bottom of the fixing frame is provided with side plates on both sides, and the side plates are provided with connection holes.

8. The rock size parameter measuring device according to claim 1, characterized in that, The ranging mechanism also includes two mounting brackets symmetrically arranged on both sides of the clamping assembly. The mounting brackets are connected to the fixing bracket via connecting rods, and the inner side of the mounting bracket is provided with a mounting hole for mounting the laser rangefinder.

9. The rock size parameter measuring device according to claim 8, characterized in that, A control panel electrically connected to the laser rangefinder is provided on the outer side of the mounting bracket.

10. The rock size parameter measuring device according to claim 8, characterized in that, The end of the connecting rod is provided with a fixing plate, and the fixing plate is connected to the fixing frame by bolts.

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