Rock strength detection device

Abstract

The utility model provides a rock strength detection device. The rock strength detection device comprises a detection table, a positioning mechanism arranged on the detection table and an extrusion mechanism arranged above the detection table. The positioning mechanism comprises two guide rails arranged in parallel, two sliding blocks arranged on the guide rails in a sliding mode respectively, two moving rods connected with the sliding blocks respectively and two racks connected with the sliding blocks respectively. The positioning mechanism further comprises a motor with a driving shaft and a gear connected with the driving shaft, and the gear is arranged between the two racks and connected with the two racks in a meshed mode. The two moving rods are arranged on the two sides of the gear respectively. According to the arrangement, one gear rotates to drive the two moving rods to synchronously move towards the inner side, then the positioning pieces on the moving rods gradually get close to a rock block on the detection table, when the positioning pieces are attached to the side face of the rock block, the rock block is fixed, and the problem that in the extrusion process of the detection device, the rock block is damaged is solved. And the problem that rock shakes and moves is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rock strength detection, in particular to a rock strength detection device. Background Art

[0002] Rock strength generally includes compressive strength (uniaxial compressive strength and triaxial compressive strength), tensile strength, and shear strength (including direct shear strength, biaxial shear strength, and triaxial shear strength); among them, shear strength and compressive strength are often the main factors in determining the stability of rock engineering. Therefore, the strength of rock needs to be tested before construction.

[0003] At present, the common detection method is to use a press to continuously squeeze the rock until it breaks, collect the force data during the squeezing process, and calculate the rock strength. However, during the squeezing process, due to the shape or placement of the rock, the rock will shake and move, resulting in inaccurate squeezing force data.

[0004] In view of this, it is necessary to design an improved rock strength detection device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a rock strength detection device to solve the problem that the existing detection device may cause the rock to shake and move during the extrusion process.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a rock strength detection device, including a detection platform, a positioning mechanism arranged on the detection platform, and an extrusion mechanism arranged above the detection platform; the positioning mechanism includes two guide rails arranged in parallel with each other, two sliders respectively slidably arranged on the guide rails, two moving rods respectively connected to the sliders, and two racks respectively connected to the sliders; the positioning mechanism also includes a motor with a driving shaft and a gear connected to the driving shaft, the gear is arranged between the two racks and meshingly connected with the two racks; the two moving rods are arranged on both sides of the gear.

[0007] As a further improvement of the present invention, the positioning mechanism also includes a horizontal plate connecting the middle parts of the two guide rails, the drive shaft is connected to the horizontal plate, and the central axis of the horizontal plate, the central axis of the drive shaft and the axis of the gear are collinear.

[0008] As a further improvement of the utility model, the moving rod includes a first connection portion connected to the guide rail, a first bending portion extending from one end of the first connection portion, a second connection portion connected to the other end of the first bending portion, a second bending portion extending from the other end of the second connection portion, and a third connection portion connected to the other end of the second bending portion; the bending directions of the first bending portion are opposite to those of the second bending portion, and the extension directions of the first connection portion, the second connection portion and the third connection portion are parallel to each other.

[0009] As a further improvement of the present invention, the extension directions of the first connection portion, the second connection portion and the third connection portion are perpendicular to the extension direction of the guide rail.

[0010] As a further improvement of the present invention, a positioning member and a connecting shaft connecting the positioning member and the moving rod are provided in the middle of the first bending portion and the second bending portion.

[0011] As a further improvement of the present invention, the two moving rods are arranged opposite to each other.

[0012] As a further improvement of the utility model, the two guide rails are respectively the first guide rail and the second guide rail, the two moving rods are respectively the first moving rod and the second moving rod, the distance from the connection point between the first moving rod and the first guide rail to the connection point between the cross plate and the first guide rail, and the distance from the connection point between the second moving rod and the second guide rail to the connection point between the cross plate and the second guide rail are equal.

[0013] As a further improvement of the present invention, the extrusion mechanism includes a frame arranged above the detection platform, a pushing cylinder is installed in the middle of the frame, a force plate is arranged at the output end of the pushing cylinder, and a pressure detection component is arranged in the middle of the lower surface of the force plate.

[0014] As a further improvement of the present invention, a connecting piece is installed on the upper part of the frame, a limiting rod is movably installed on the inner side of the connecting piece, and the lower end of the limiting rod is connected to the force plate; the number of the limiting rods is four, and the four limiting rods are respectively located at the four corners of the force plate.

[0015] As a further improvement of the present invention, an extension direction of the transverse plate and an extension direction of the guide rail are perpendicular to each other.

[0016] The beneficial effects of the utility model are:

[0017] The rock strength detection device provided by the utility model has a gear meshing with the two racks between two parallel racks, two moving rods connected with the two guide rails, and the two moving rods are respectively arranged on both sides of the gear, and the two racks are respectively slidably arranged on the two guide rails; such arrangement realizes that during the rotation of the gear, the two racks meshing with each other on both sides thereof can be driven to move, and when the rack moves, the two sliders can be driven to move synchronously, at which time the two sliders translate along the two guide rails, and the two sliders move synchronously toward the middle, which can drive the moving rod to move synchronously inward, at which time the positioning piece on the moving rod gradually approaches the rock block on the detection table, and when the positioning piece fits to the side of the rock block, the rock block is fixed, thereby solving the problem that the rock will shake and move during the extrusion process of the detection device.

[0018] The output end of the push cylinder in the utility model pushes the force plate to move downward, and the force plate drives the lower pressure detection member to move downward synchronously, and then the pressure detection member and the rock block gradually contact, and the rock block can be detected by continuously applying force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereoscopic diagram of the rock strength detection device of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the rock strength detection device of the utility model.

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the positioning mechanism.

[0022] Figure 4 for Figure 1 A schematic structural diagram of the positioning mechanism from another angle.

[0023] Reference numerals

[0024] 100- rock strength detection device; 1- detection platform; 2- frame; 3- connection piece; 4- limit rod; 5- force plate; 6- push cylinder; 71- first guide rail; 72- second guide rail; 81- first slider; 82- second slider; 40- screw; 91- first moving rod; 911- first connecting part; 912- first bending part; 913- second connecting part; 914- second bending part; 915- third connecting part; 92- second moving rod; 11- connecting shaft; 12- positioning piece; 131- first rack; 132- second rack; 14- gear; 15- driving shaft; 16- horizontal plate; 17- motor; 18- moving wheel; 19- pressure detection piece. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0027] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0028] See also Figures 1 to 4 As shown, the utility model provides a rock strength detection device 100, including a detection platform 1, a positioning mechanism arranged on the detection platform 1, and a squeezing mechanism arranged above the detection platform 1. The positioning mechanism includes two guide rails arranged in parallel with each other, two sliders respectively slidably arranged on the guide rails, two moving rods respectively connected to the sliders, and two racks respectively connected to the sliders. The positioning mechanism also includes a motor 17 with a driving shaft 15 and a gear 14 connected to the driving shaft 15, the gear 14 is arranged between the two racks and meshed with the two racks; the two moving rods are arranged on both sides of the gear 14.

[0029] The positioning mechanism also includes a horizontal plate 16 connecting the middle parts of the two guide rails, and the extension direction of the horizontal plate 16 is perpendicular to the extension direction of the guide rails; the horizontal plate 16 is arranged just above the gear 14, and the driving end of the driving shaft 15 of the motor 17 passes through the middle position of the horizontal plate 16 and is connected to the gear 14. That is, the central axis of the horizontal plate 16, the central axis of the driving shaft 15 and the axis of the gear 14 are collinear.

[0030] Specifically, the two guide rails are respectively the first guide rail 71 and the second guide rail 72 , the two moving rods are respectively the first moving rod 91 and the second moving rod 92 , the two sliders are respectively the first slider 81 and the second slider 82 , and the two racks are respectively the first rack 131 and the second rack 132 .

[0031] The first rack 131 is connected to the first slider 81, and the first slider 81 is slidably disposed on the first guide rail 71. The first moving rod 91 is connected to the first slider 81 by a screw 40. Correspondingly, the second rack 132 is connected to the second slider 82, and the second slider 82 is slidably disposed on the second guide rail 72, and the second moving rod 92 is connected to the second slider 82 by a screw 40. In addition, the distance from the connection point of the first moving rod 91 and the first guide rail 71 to the connection point of the cross plate 16 and the first guide rail 71, and the distance from the connection point of the second moving rod 92 and the second guide rail 72 to the connection point of the cross plate 16 and the second guide rail 72 are equal.

[0032] With such arrangement, when the gear 14 rotates, it drives the first rack 131 and the second rack 132 to move in opposite directions, thereby driving the first slider 81 and the second slider 82 to slide in opposite directions, thereby driving the first moving rod 91 and the second moving rod 92 to move toward or away from each other.

[0033] The first moving rod 91 includes a first connecting portion 911 connected to the first guide rail 71, a first bending portion 912 extending from one end of the first connecting portion 911, a second connecting portion 913 connected to the other end of the first bending portion 912, a second bending portion 914 extending from the other end of the second connecting portion 913, and a third connecting portion 915 connected to the other end of the second bending portion 914. The bending directions of the first bending portion 912 and the second bending portion 914 are opposite, and the extending directions of the first connecting portion 911, the second connecting portion 913 and the third connecting portion 915 are parallel to each other. In this embodiment, the extending directions of the first connecting portion 911, the second connecting portion 913 and the third connecting portion 915 are perpendicular to the extending direction of the first guide rail 71.

[0034] A positioning member 12 for fixing the rock block and a connecting shaft 11 connecting the positioning member 12 and the moving rod are provided in the middle of the first bending portion 912 and the second bending portion 914 .

[0035] The structure of the second moving rod 92 is substantially the same as that of the first moving rod 91, and will not be described in detail herein. That is, the number of the positioning members 12 is four.

[0036] In this embodiment, the first moving rod 91 and the second moving rod 92 are disposed opposite to each other.

[0037] Such arrangement ensures that during the rotation of the gear 14, the two meshing racks on both sides thereof can be driven to move, and the movement of the racks can drive the two sliders to move synchronously. At this time, the two sliders translate along the two guide rails; when the two sliders move synchronously toward the middle, the moving rod can be driven to move synchronously inward. At this time, the positioning piece 12 on the moving rod gradually approaches the rock block on the testing platform. When the positioning piece 12 fits to the side of the rock block, the rock block can be fixed, thereby solving the problem of shaking and moving of the rock during the extrusion process of the testing device.

[0038] The extrusion mechanism includes a frame 2 arranged above the detection platform 1, a connecting member 3 is installed on the upper part of the frame 2, a limit rod 4 is movably installed inside the connecting member 3, and a force plate 5 is installed at the lower end of the limit rod 4. There are four limit rods 4, which are respectively located at the four corners of the force plate 5. A push cylinder 6 is installed in the middle of the frame 2, the output end of the push cylinder 6 is connected to the upper surface of the force plate 5, and a pressure detection member 19 is installed in the middle of the lower surface of the force plate 5.

[0039] Four moving wheels 18 are installed at the bottom of the testing platform 1. The four moving wheels 18 are locking wheels, which facilitate the movement of the whole and improve the overall practicality.

[0040] The working principle of the rock strength detection device of the utility model is described below:

[0041] First, place the rock block to be tested in the middle of the test platform 1 and at the bottom of the pressure testing member 19, then start the motor 17, and drive the drive shaft 15 to rotate through the motor 17. When the drive shaft 15 rotates, it can drive the gear 14 to rotate. During the rotation of the gear 14, the first rack 131 and the second rack 132 engaged on both sides thereof are driven to move. When the first rack 131 and the second rack 132 move, they drive the first slider 81 and the second slider 82 to move synchronously. At this time, the first slider 81 and the second slider 82 are translated along the first guide rail 71 and the second guide rail 72 respectively. When the slider 81 and the second slider 82 move synchronously toward the middle, they can drive the first moving rod 91 and the second moving rod 92 to move synchronously toward each other. At this time, the positioning members 12 on the first moving rod 91 and the second moving rod 92 gradually approach the rock block on the detection platform 1; when the positioning members 12 fit to the side of the rock block, it can be fixed; then the upper push cylinder 6 is started, and the output end of the push cylinder 6 pushes the force plate 5 downward, and the force plate 5 drives the lower pressure detection member 19 to move downward synchronously, and then the pressure detection member 19 and the rock block gradually contact, and the rock block can be detected by continuously applying force.

[0042] In summary, the rock strength detection device 100 provided by the utility model realizes that during the rotation of the gear, the two racks meshingly connected on both sides thereof can be driven to move, and when the rack moves, the two sliders can be driven to move synchronously. At this time, the two sliders translate along the two guide rails, and the two sliders move synchronously toward the middle, which can drive the moving rod to move synchronously inward. At this time, the positioning piece on the moving rod gradually approaches the rock block on the detection table. When the positioning piece is fitted to the side of the rock block, the rock block is fixed, which solves the problem of shaking and moving of the rock during the extrusion process of the detection device.

[0043] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model.

Claims

1. A rock strength detection device, characterized in that: It includes a testing platform, a positioning mechanism arranged on the testing platform, and a squeezing mechanism arranged above the testing platform; the positioning mechanism includes two guide rails arranged in parallel with each other, two sliders respectively slidably arranged on the guide rails, two moving rods respectively connected to the sliders, and two racks respectively connected to the sliders; the positioning mechanism also includes a motor with a driving shaft and a gear connected to the driving shaft, the gear is arranged between the two racks and meshed with the two racks; the two moving rods are arranged on both sides of the gear.

2. The rock strength detection device according to claim 1, characterized in that: The positioning mechanism also includes a transverse plate connecting the middle parts of the two guide rails, the drive shaft is connected to the transverse plate, and the central axis of the transverse plate, the central axis of the drive shaft and the axis of the gear are collinear.

3. The rock strength detection device according to claim 2, characterized in that: The moving rod includes a first connecting portion connected to the guide rail, a first bending portion extending from one end of the first connecting portion, a second connecting portion connected to the other end of the first bending portion, a second bending portion extending from the other end of the second connecting portion, and a third connecting portion connected to the other end of the second bending portion; the bending directions of the first bending portion and the second bending portion are opposite, and the extension directions of the first connecting portion, the second connecting portion and the third connecting portion are parallel to each other.

4. The rock strength detection device according to claim 3, characterized in that: The extending directions of the first connecting portion, the second connecting portion and the third connecting portion are perpendicular to the extending direction of the guide rail.

5. The rock strength detection device according to claim 3, characterized in that: A positioning member and a connecting shaft connecting the positioning member and the moving rod are provided in the middle of the first bending portion and the second bending portion.

6. The rock strength detection device according to claim 2, characterized in that: The two moving rods are arranged opposite to each other.

7. The rock strength detection device according to claim 2, characterized in that: The two guide rails are respectively the first guide rail and the second guide rail, the two moving rods are respectively the first moving rod and the second moving rod, the distance from the connection point between the first moving rod and the first guide rail to the connection point between the cross plate and the first guide rail, and the distance from the connection point between the second moving rod and the second guide rail to the connection point between the cross plate and the second guide rail are equal.

8. The rock strength detection device according to claim 1, characterized in that: The extrusion mechanism comprises a frame arranged above the detection platform, a push cylinder is installed in the middle of the frame, a force plate is arranged at the output end of the push cylinder, and a pressure detection member is arranged in the middle of the lower surface of the force plate.

9. The rock strength detection device according to claim 8, characterized in that: A connecting piece is installed on the upper part of the frame, and a limiting rod is movably installed on the inner side of the connecting piece, and the lower end of the limiting rod is connected to the force application plate; the number of the limiting rods is four, and the four limiting rods are respectively located at the four corners of the force application plate.

10. The rock strength detection device according to claim 2, characterized in that: The extending direction of the transverse plate is perpendicular to the extending direction of the guide rail.

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