Rock compression shear test device

Abstract

The utility model discloses a rock compression shear test device, which relates to the technical field of rock test equipment and comprises a bearing plate, a vertical plate is fixedly connected to the top surface of the bearing plate, a plurality of mounting grooves are formed in the side wall of the vertical plate, cushion blocks are detachably connected in the mounting grooves, and second strip-shaped plates are symmetrically and fixedly connected to the top surface of the bearing plate. The top faces of the two second strip-shaped plates are fixedly connected with first strip-shaped plates correspondingly, compression-shear assemblies are installed between the two first strip-shaped plates and between the two second strip-shaped plates correspondingly, the two compression-shear assemblies are vertically arranged and are of the same structure, the ends, away from the second strip-shaped plates, of the first strip-shaped plates are fixedly connected with supporting rods, and the bottoms of the supporting rods are fixedly connected with the bearing plate. The vertical plate is located between the second strip-shaped plate and the supporting rod. The device is simple in structure, convenient to use and good in adjustable performance, the application range of the device is expanded, time and labor are saved, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of rock testing equipment, in particular to a rock compression and shearing testing device. Background Art

[0002] When studying the mechanical properties of rocks, it is usually necessary to conduct a variety of mechanical tests on them. The test methods are roughly divided into tensile shear test, compression shear test, direct tensile test and direct shear test. The purpose is to be able to conduct tensile / compression shear tests on different rocks and provide test data for establishing more accurate and complete rock mechanical models and strength criteria.

[0003] The compression shear test equipment in the prior art has insufficient adjustable performance and is not easy to adjust when testing rocks of different sizes, which results in prolonged test time and reduced test efficiency.

[0004] Therefore, a rock compression shear test device is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a rock compression shear test device to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme: The utility model provides a rock compression and shear test device, including a load-bearing plate, a vertical plate fixedly connected to the top surface of the load-bearing plate, a plurality of mounting grooves are opened on the side walls of the vertical plate, and pads are detachably connected in the mounting grooves, a second strip plate is symmetrically fixedly connected to the top surface of the load-bearing plate, a first strip plate is respectively fixedly connected to the top surfaces of the two second strip plates, a compression and shear assembly is respectively installed between the two first strip plates and between the two second strip plates, the two compression and shear assemblies are vertically arranged and have the same structure, a support rod is fixedly connected to one end of the first strip plate away from the second strip plate, the bottom of the support rod is fixedly connected to the load-bearing plate, and the vertical plate is located between the second strip plate and the support rod.

[0007] Preferably, the pressing and shearing assembly includes a slide located between the two second strip plates, both ends of the slide extend into the second strip plates and are slidably connected to the second strip plates, a hydraulic cylinder is fixedly connected to the top surface of the slide, an extrusion plate is fixedly connected to the output end of the hydraulic cylinder, and the extrusion plate is in contact with the sample.

[0008] Preferably, a lead screw is vertically rotatably connected inside the second strip plate, the lead screw passes through the end of the slide and is threadedly connected to the slide, a first spur gear is fixedly connected to the outside of the lead screw, the first spur gear is meshed with a drive assembly, and the drive assembly is rotatably connected to the second strip plate.

[0009] Preferably, the driving assembly includes a second spur gear meshing with the first spur gear, a rotating shaft is fixedly connected to the center of the second spur gear, the rotating shaft is rotatably connected to the second strip plate, a first bevel gear is fixedly connected to the top of the rotating shaft, the first bevel gear is meshed with a second bevel gear, a connecting shaft is fixedly connected through the center of the second bevel gear, and either end of the connecting shaft passes through the second strip plate and is fixedly connected to a crank.

[0010] Preferably, four corners of the bottom surface of the supporting plate are fixedly connected with columns, the bottom of the columns is fixedly connected with a bottom plate, and four corners of the bottom surface of the bottom plate are fixedly connected with supporting feet.

[0011] Preferably, an arc-shaped plate is fixedly connected between two adjacent columns, and the top surface of the arc-shaped plate abuts against the bearing plate.

[0012] Preferably, a plurality of oblique supports are fixedly connected to a side of the vertical plate away from the cushion block, and the bottom of the oblique supports is fixedly connected to the bearing plate.

[0013] Preferably, a protective net is detachably connected around the supporting plate.

[0014] The utility model discloses the following technical effects: when in use, the rock sample is placed on the bearing plate, and its side is in contact with the pad. The pad can be installed in the installation groove at different positions according to the rocks of different sizes, thereby expanding the scope of application; the vertical load is applied to the sample by the compression and shearing assembly on the first strip plate, and the transverse shear load is applied to the sample by the compression and shearing assembly on the second strip plate, and sensors are installed on the compression and shearing assemblies, which are connected to the external control device, and the stress conditions are directly reflected on the display screen of the control device for easy observation; at the same time, the compression and shearing assembly can be freely adjusted. After replacing rock samples of different sizes, the position of the compression and shearing assembly can be adjusted for rapid calibration, which greatly saves time and improves work efficiency. The utility model has a simple structure, is easy to use, has good adjustable performance, expands the scope of application of the device, saves time and effort, and has high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model after removing the protective net;

[0018] Figure 3 For this utility model Figure 2 The main view in ;

[0019] Figure 4 It is a side view of the second strip plate of the utility model;

[0020] Among them, 1. load-bearing plate; 2. column; 3. bottom plate; 4. support foot; 5. protective net; 6. first strip plate; 7. second strip plate; 8. slide seat; 9. crank; 10. vertical plate; 11. pad; 12. mounting groove; 13. arc plate; 14. oblique support; 15. hydraulic cylinder; 16. extrusion plate; 17. support rod; 18. connecting shaft; 19. screw; 20. first spur gear; 21. rotating shaft; 22. second spur gear; 23. first bevel gear; 24. second bevel gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1-Figure 4 The utility model provides a rock compression and shear test device, including a bearing plate 1, a vertical plate 10 is fixedly connected to the top surface of the bearing plate 1, a plurality of mounting grooves 12 are opened on the side walls of the vertical plate 10, and a pad 11 is detachably connected in the mounting groove 12, a second strip plate 7 is symmetrically fixedly connected to the top surface of the bearing plate 1, a first strip plate 6 is respectively fixedly connected to the top surfaces of the two second strip plates 7, a compression and shear assembly is respectively installed between the two first strip plates 6 and between the two second strip plates 7, the two compression and shear assemblies are vertically arranged and have the same structure, a support rod 17 is fixedly connected to one end of the first strip plate 6 away from the second strip plate 7, the bottom of the support rod 17 is fixedly connected to the bearing plate 1, and the vertical plate 10 is located between the second strip plate 7 and the support rod 17.

[0024] When in use, the rock sample is placed on the bearing plate 1, and its side is in contact with the pad 11. The pad 11 can be installed in the installation groove 12 at different positions according to the rocks of different sizes, thereby expanding the scope of application; the compression and shearing assembly on the first strip plate 6 applies a vertical load to the sample, and the compression and shearing assembly on the second strip plate 7 applies a lateral shear load to the sample, and sensors are installed on the compression and shearing assemblies, which are connected to the external control device, and the stress conditions are directly reflected on the display screen of the control device for easy observation; at the same time, the compression and shearing assembly can be freely adjusted. After replacing rock samples of different sizes, the position of the compression and shearing assembly can be adjusted for rapid calibration, which greatly saves time and improves work efficiency. The utility model has a simple structure, is easy to use, has good adjustable performance, expands the scope of application of the device, saves time and effort, and has high work efficiency.

[0025] Further optimized solution, the compression shear assembly includes a slide 8 located between the two second strip plates 7, the two ends of the slide 8 extend into the second strip plates 7 and are slidably connected to the second strip plates 7, a hydraulic cylinder 15 is fixedly connected to the top surface of the slide 8, and an extrusion plate 16 is fixedly connected to the output end of the hydraulic cylinder 15, and the extrusion plate 16 is in contact with the sample. The slide 8 is slidably adjusted between the second strip plates 7, and the position of the hydraulic cylinder 15 can be quickly adjusted. The output end of the hydraulic cylinder 15 is extended, driving the extrusion plate 16 to move, and the extrusion plate 16 is in contact with the surface of the sample, and the other side of the sample is in contact with the pad 11, thereby forming a transverse shear force, and the hydraulic cylinder 15 on the first strip plate 6 extends downward to compress the sample until the test is completed.

[0026] In a further optimized solution, a lead screw 19 is vertically rotatably connected inside the second strip plate 7, the lead screw 19 passes through the end of the slide seat 8 and is threadedly connected to the slide seat 8, a first spur gear 20 is fixedly connected to the outside of the lead screw 19, the first spur gear 20 is meshed with a driving assembly, and the driving assembly is rotatably connected to the second strip plate 7. The driving assembly drives the first spur gear 20 to rotate, the first spur gear 20 drives the lead screw 19 to rotate, and the rotation of the lead screw 19 causes the slide seat 8 to move, thereby completing the adjustment work, which is simple and convenient to operate with high efficiency.

[0027] Further optimization scheme, the driving assembly includes a second spur gear 22 meshing with the first spur gear 20, a rotating shaft 21 is fixedly connected to the center of the second spur gear 22, the rotating shaft 21 is rotatably connected to the second strip plate 7, a first bevel gear 23 is fixedly connected to the top of the rotating shaft 21, the first bevel gear 23 is meshed with the second bevel gear 24, the center of the second bevel gear 24 passes through and is fixedly connected with a connecting shaft 18, and either end of the connecting shaft 18 passes through the second strip plate 7 and is fixedly connected with a crank 9. Turning the crank 9 drives the connecting shaft 18 to rotate, the connecting shaft 18 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the first bevel gear 23 to rotate, the first bevel gear 23 drives the rotating shaft 21 to rotate, the rotating shaft 21 drives the second spur gear 22 to rotate, and the second spur gear 22 drives the first spur gear 20 to rotate, thereby completing the adjustment work, and the manual rotation of the crank 9 is used for control, which is more convenient for the adjustment work, easier to control, and improves the accuracy.

[0028] Further optimization scheme, the four corners of the bottom surface of the load-bearing plate 1 are fixedly connected with columns 2, the bottom of the column 2 is fixedly connected with a bottom plate 3, and the four corners of the bottom surface of the bottom plate 3 are fixedly connected with legs 4. The columns 2 increase the height of the load-bearing plate 1, which is convenient for the installation and replacement of the specimen and improves the work efficiency. The bottom plate 3 and the legs 4 play a supporting role for the whole and ensure stability.

[0029] In a further optimized solution, an arc plate 13 is fixedly connected between two adjacent columns 2, and the top surface of the arc plate 13 abuts against the load-bearing plate 1. The arrangement of the arc plate 13 improves the overall stability and strengthens the load-bearing capacity of the load-bearing plate 1, preventing the load-bearing plate 1 from breaking or bending during the pressure application process, thereby affecting the test.

[0030] In a further optimized solution, a plurality of oblique supports 14 are fixedly connected to one side of the vertical plate 10 away from the pad 11, and the bottom of the oblique supports 14 is fixedly connected to the bearing plate 1. The oblique supports 14 support the vertical plate 10, and also improve the stability, ensuring the normal progress of the sample.

[0031] Further optimization scheme, the support plate 1 is detachably connected with a protective net 5 around it. The protective net 5 is set on the outside of the support plate 1 to prevent the staff from being injured by the cracking during the test. The protective net 5 is light in weight, easy to install and disassemble, more convenient to operate, and has a low manufacturing cost, saving investment funds.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A rock compression shear test device, characterized in that: The invention comprises a bearing plate (1), wherein a vertical plate (10) is fixedly connected to the top surface of the bearing plate (1), a plurality of mounting grooves (12) are provided on the side walls of the vertical plate (10), a cushion block (11) is detachably connected in the mounting groove (12), a second strip plate (7) is symmetrically fixedly connected to the top surface of the bearing plate (1), a first strip plate (6) is fixedly connected to the top surfaces of the two second strip plates (7), a pressing and shearing assembly is respectively installed between the two first strip plates (6) and between the two second strip plates (7), the two pressing and shearing assemblies are vertically arranged and have the same structure, a support rod (17) is fixedly connected to one end of the first strip plate (6) away from the second strip plate (7), the bottom of the support rod (17) is fixedly connected to the bearing plate (1), and the vertical plate (10) is located between the second strip plate (7) and the support rod (17).

2. The rock compression shear test device according to claim 1, characterized in that: The compression and shearing assembly comprises a slide (8) located between the two second strip plates (7), the two ends of the slide (8) extending into the second strip plates (7) and being slidably connected to the second strip plates (7), a hydraulic cylinder (15) being fixedly connected to the top surface of the slide (8), an extrusion plate (16) being fixedly connected to the output end of the hydraulic cylinder (15), and the extrusion plate (16) being in contact with the sample.

3. The rock compression shear test device according to claim 2, characterized in that: A lead screw (19) is vertically rotatably connected inside the second strip plate (7), the lead screw (19) passes through the end of the slide seat (8) and is threadedly connected to the slide seat (8), a first spur gear (20) is fixedly connected to the outer side of the lead screw (19), the first spur gear (20) is meshed with a drive assembly, and the drive assembly is rotatably connected to the second strip plate (7).

4. The rock compression shear test device according to claim 3 is characterized in that: The driving assembly comprises a second spur gear (22) meshing with the first spur gear (20); a rotating shaft (21) is fixedly connected at the center of the second spur gear (22); the rotating shaft (21) is rotatably connected to the second strip plate (7); a first bevel gear (23) is fixedly connected to the top of the rotating shaft (21); the first bevel gear (23) is meshed with a second bevel gear (24); a connecting shaft (18) is fixedly connected through the center of the second bevel gear (24); either end of the connecting shaft (18) passes through the second strip plate (7) and is fixedly connected to a crank (9).

5. The rock compression shear test device according to claim 1, characterized in that: The four corners of the bottom surface of the bearing plate (1) are respectively fixedly connected to upright posts (2), the bottom of the upright posts (2) is respectively fixedly connected to a bottom plate (3), and the four corners of the bottom surface of the bottom plate (3) are respectively fixedly connected to supporting feet (4).

6. The rock compression shear test device according to claim 5, characterized in that: An arc-shaped plate (13) is fixedly connected between two adjacent columns (2), and the top surface of the arc-shaped plate (13) abuts against the supporting plate (1).

7. The rock compression shear test device according to claim 1, characterized in that: A plurality of oblique supports (14) are fixedly connected to one side of the vertical plate (10) away from the cushion block (11), and the bottoms of the oblique supports (14) are fixedly connected to the bearing plate (1).

8. The rock compression shear test device according to claim 1, characterized in that: The supporting plate (1) is detachably connected to a protective net (5) around its periphery.

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