Equipment for testing shear strength of rock-soil body

Abstract

The utility model relates to the technical field of rock-soil detection, and discloses rock-soil body shear strength testing equipment which comprises a detection table, a supporting frame is fixedly connected to the top of the detection table, extrusion equipment is installed on the top of the inner side of the supporting frame, first air cylinders are fixedly connected to the left side and the right side of the supporting frame, and second air cylinders are fixedly connected to the left side and the right side of the supporting frame. The output ends of the two first air cylinders penetrate through the left side and the right side of the supporting frame and are fixedly connected with clamping plates, the sides, away from each other, of the two clamping plates are slidably connected with a plurality of adjusting plates, the left sides and the right sides of the adjusting plates are fixedly connected with sliding rods, and the sides, away from each other, of the two clamping plates are fixedly connected with a plurality of limiting plates. According to the shearing box clamping device, the adjusting plates on the two sides of the clamping plate are stretched according to the size of a shearing box, the clamping range of the shearing box is widened, one side of the inclined table is lifted through the rotating plate, and chippings on the inclined table are scraped into the collecting box through cooperation with the scraper.

Description

Technical Field

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

[0002] Geotechnical soil is a key component of the earth's surface and is crucial to engineering construction, geological environmental protection and geological disaster prevention. Geotechnical engineering is widely used in various engineering projects, such as building foundation design, road and bridge, tunnel underground engineering, water conservancy engineering and environmental engineering. By deeply studying the characteristics and behavior of geotechnical soil, engineers can design and construct more accurately to ensure the safety and reliability of the project.

[0003] The rock and soil mass must be tested by shear strength testing equipment before being used in engineering projects. During the test, vertical pressure is first applied to the soil sample, and then horizontal thrust is applied to the lower box. The displacement of the upper and lower boxes causes the soil sample to be sheared, and then the shear strength is measured.

[0004] Since the sizes of shear boxes are different, it is difficult to clamp and fix them in all directions, which leads to errors in the pressure test during the test and affects the subsequent test data. Therefore, a rock and soil shear strength test equipment is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a rock and soil shear strength testing device, aiming to improve the problem in the prior art that it is difficult to fully fix and clamp shear boxes of different sizes.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rock and soil shear strength testing device, including a test platform, the top of the test platform is fixedly connected to a support frame, an extrusion device is installed on the inner top of the support frame, the left and right sides of the support frame are fixedly connected to cylinder one, the output ends of the two cylinders one pass through the left and right sides of the support frame and are fixedly connected to clamping plates, the two clamping plates are slidably connected to a plurality of adjustment plates on the far side, the left and right sides of the plurality of adjustment plates are fixedly connected to sliding rods, and the two clamping plates are fixedly connected to It is connected to multiple limit plates, and adjacent ends of multiple sliding rods penetrate the opposite side of the limit plates and are slidably connected to the inside of the clamping plate. The outer walls of multiple sliding rods are fixedly connected with springs. The tops of the two clamping plates are provided with multiple sliding grooves, and the insides of multiple sliding grooves are slidably connected with adjusting bolts. The tops of multiple adjusting bolts are fixedly connected with turning knobs, and the bottom ends of multiple adjusting bolts are threadedly connected to the top of the adjusting plate. The top of the detection table is fixedly connected with cylinder 2, and the output end of cylinder 2 is fixedly connected with a placing table. The top of the detection table is provided with a cleaning mechanism.

[0007] As a further description of the above technical solution:

[0008] The cleaning mechanism includes a rotating shaft, the ends of the rotating shaft that are away from each other are rotatably connected to the top right side of the placing table, the outer wall of the rotating shaft is fixedly connected to the tilting table, the top of the tilting table is fixedly connected to a slideway, the insides of the two slideways are slidably connected to pulleys, and the two adjacent pulleys are rotatably connected to a scraper, a moving groove is opened on the left side of the top of the placing table, the bottom of the placing table is fixedly connected to a fixed plate, the front side of the fixed plate is fixedly connected to a servo motor, the output end of the servo motor passes through the front side of the fixed plate and is fixedly connected to a rotating plate, and a collection box is arranged on the right side of the top of the detection table.

[0009] As a further description of the above technical solution:

[0010] A handle is fixedly connected to the left side of the scraper, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0011] As a further description of the above technical solution:

[0012] The top of the detection platform is fixedly connected with a plurality of support rods, and the top ends of the plurality of support rods are arranged at the bottom of the placement platform.

[0013] As a further description of the above technical solution:

[0014] Adjacent sides of the plurality of adjustment plates are all fixedly connected with rubber strips.

[0015] As a further description of the above technical solution:

[0016] A switch box is fixedly connected to the front side of the detection platform, and a dust cover is rotatably connected to the front side of the switch box.

[0017] As a further description of the above technical solution:

[0018] A plurality of support columns are fixedly connected to the left and right sides of the detection platform, and a rubber pad is fixedly connected to the bottom ends of the plurality of support columns.

[0019] As a further description of the above technical solution:

[0020] The outer walls of the plurality of support columns are fixedly connected with reinforcement plates, and adjacent sides of the plurality of reinforcement plates are fixedly connected to the left and right sides of the detection platform.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, according to the size of the shear box, the adjustment plates on both sides of the clamping plate are stretched so that they are clamped at the front and rear sides of the shear box, and then the adjustment plates are fixed by rotating the adjustment bolts. This can increase the clamping range of the shear box and avoid offset and uneven pressure during pressure testing.

[0023] 2. In the utility model, the servo motor is started to drive the rotating plate to lift one side of the tilting table, and the debris on the tilting table is scraped into the collection box by the scraper, so that the table surface is cleaner and convenient for later geotechnical inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of a rock and soil shear strength testing device proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a fixing device for a rock and soil shear strength testing device proposed by the utility model;

[0026] Figure 3 This is a disassembled diagram of a rock and soil shear strength testing device proposed in the utility model.

[0027] Legend:

[0028] 1. Inspection table; 2. Cleaning mechanism; 201. Rotating shaft; 202. Tilt table; 203. Slide; 204. Pulley; 205. Scraper; 206. Handle; 207. Anti-slip sleeve; 208. Moving groove; 209. Fixed plate; 210. Servo motor; 211. Rotating plate; 212. Collecting box; 3. Support frame; 4. Extrusion equipment; 5. Cylinder one; 6. Clamping plate; 7. Adjusting plate; 8. Sliding rod; 9. Limiting plate; 10. Spring; 11. Slide; 12. Adjusting bolt; 13. Knob; 14. Rubber strip; 15. Switch box; 16. Dust cover; 17. Support column; 18. Rubber pad; 19. Reinforcement plate; 20. Cylinder two; 21. Placement table; 22. Support rod. DETAILED DESCRIPTION

[0029] 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.

[0030] Reference Figure 1-Figure 3, the utility model provides an embodiment: a rock and soil shear strength testing device, including a testing platform 1, the top of the testing platform 1 is fixedly connected to a support frame 3, an extrusion device 4 is installed on the inner top of the support frame 3, the left and right sides of the support frame 3 are fixedly connected to a cylinder 5, the output ends of the two cylinders 5 penetrate the left and right sides of the support frame 3 and are fixedly connected to a clamping plate 6, the two clamping plates 6 are slidably connected to the opposite sides thereof with a plurality of adjustment plates 7, the left and right sides of the plurality of adjustment plates 7 are fixedly connected to a sliding rod 8, the two clamping plates 6 are fixedly connected to the opposite sides thereof with a plurality of limit plates 9, the adjacent ends of the plurality of sliding rods 8 penetrate the opposite sides thereof with the limit plates 9 and are slidably connected to the clamping plates 6. Internally, the outer walls of multiple sliding rods 8 are fixedly connected with springs 10, the tops of the two clamping plates 6 are opened with multiple sliding grooves 11, the insides of the multiple sliding grooves 11 are slidably connected with adjusting bolts 12, the tops of the multiple adjusting bolts 12 are fixedly connected with knobs 13, the bottom ends of the multiple adjusting bolts 12 are threadedly connected to the top of the adjusting plate 7, the top of the testing table 1 is fixedly connected with cylinder 20, the output end of cylinder 20 is fixedly connected with a placing table 21, the top of the testing table 1 is provided with a cleaning mechanism 2, the top of the testing table 1 is fixedly connected with multiple support rods 22, the tops of the multiple support rods 22 are arranged at the bottom of the placing table 21, and the adjacent sides of the multiple adjusting plates 7 are fixedly connected with rubber strips 14.

[0031] Specifically, a support frame 3 is installed on the top of the test platform 1, and the extrusion equipment 4 is installed and fixed by the support frame 3. At the same time, a cylinder 20 is installed on the top of the test platform 1, and the placement platform 21 is fixed and installed by the cylinder 20. After the shear box and rock and soil are placed, the shear data of the rock is detected and processed by the extrusion equipment 4 in cooperation with the cylinder 20. Cylinders 15 are respectively installed and fixed on both sides of the support frame 3, and the clamping plate 6 is fixed by the cylinder 15. The clamping plate 6 is driven by starting the cylinder 15 to fix and clamp the left and right sides of the shear box. At the same time, before clamping, adjustment plates 7 are slidably installed on both sides of the clamping plate 6, and adjustment bolts 12 are connected to the top of the adjustment plates 7. The adjustment plates 7 are stretched to both sides to be clamped at the front and rear sides of the shear box, and then the adjustment bolts are rotated to fix the adjustment plates 7. In this way, the clamping range of the shear box can be increased to avoid offset and uneven pressure during pressure testing. The adjusting plate 7 is connected by the slide rod 8 and the spring 10. When the fixing of the adjusting bolt 12 is released, the adjusting plate 7 can be retracted toward the inside of the clamping plate 6 under the action of the spring 10, which is convenient for later use.

[0032] Reference Figure 1-Figure 3The cleaning mechanism 2 includes a rotating shaft 201, and the ends of the rotating shaft 201 that are away from each other are rotatably connected to the top right side of the placing table 21. The outer wall of the rotating shaft 201 is fixedly connected with a tilting table 202, and the top of the tilting table 202 is fixedly connected with a slideway 203. The insides of the two slideways 203 are slidably connected with pulleys 204, and the scrapers 205 are rotatably connected between the two adjacent pulleys 204. A moving groove 208 is opened on the left side of the top of the placing table 21, and a fixed plate 209 is fixedly connected to the bottom of the placing table 21. The front side of the fixed plate 209 is fixedly connected to a servo motor 210, and the output end of the servo motor 210 passes through the front side of the fixed plate 209 and is fixedly connected to a rotating plate 211. A collecting box 212 is arranged on the right side of the top of the testing table 1, and a handle 206 is fixedly connected to the left side of the scraper 205, and an anti-slip sleeve 207 is fixedly connected to the outer wall of the handle 206.

[0033] Specifically, the top of the placing table 21 is connected to the tilting table 202 through the rotating shaft 201, and slideways 203 are installed on both sides of the tilting plate 202, and pulleys 204 are installed on both sides of the scraper 205. By installing the pulley 204 on the slideway 203, the scraper 205 can be easily slid. A fixed plate 209 is installed at the bottom of the placing table 21, and the servo motor 219 is installed and fixed by the fixed plate 209. By starting the servo motor 210 to drive the rotating plate 211 to rotate, the rotating plate 211 can drive the tilting table 202 to lift, so that the debris on the tilting table 202 can be scraped into the collection box 212 by cooperating with the scraper 205, so that the table surface is cleaner and convenient for later geotechnical inspection.

[0034] Reference Figure 1 A switch box 15 is fixedly connected to the front side of the testing platform 1, and a dust cover 16 is rotatably connected to the front side of the switch box 15. Multiple support columns 17 are fixedly connected to the left and right sides of the testing platform 1, and rubber pads 18 are fixedly connected to the bottom ends of the multiple support columns 17. Reinforcement plates 19 are fixedly connected to the outer walls of the multiple support columns 17, and adjacent sides of the multiple reinforcement plates 19 are fixedly connected to the left and right sides of the testing platform 1.

[0035] Specifically, the switch box 15 can be used to conveniently control the operation of the operating equipment on the entire device, and the dust cover 16 can prevent dust from entering, thereby improving the service life of the switch box 15. The support column 17 at the bottom of the test bench 1 is combined with the rubber pad 18 to improve the stability and firmness of the device.

[0036] Working principle: First, the extrusion equipment 4 is installed and fixed by the support frame 3. After the shear box and rock and soil are placed, the clamping plate 6 is driven by starting the cylinder 5 to fix and clamp the left and right sides of the shear box. At the same time, before clamping, adjustment plates 7 are slidably installed on both sides of the clamping plate 6, and adjustment bolts 12 are connected to the top of the adjustment plate 7. The adjustment plate 7 is stretched to both sides so that it is clamped on the front and back sides of the shear box, and then the adjustment bolt is rotated to fix the adjustment plate 7. This can increase the clamping range of the shear box and avoid offset and uneven pressure during pressure testing. Finally, The extrusion device 4 cooperates with the cylinder 20 to detect and process the shear data of the rock. The adjustment plate 7 is connected through the slide rod 8 and the spring 10. When the adjustment bolt 12 is released, the adjustment plate 7 can be retracted toward the inside of the clamping plate 6 under the action of the spring 10, which is convenient for later use. The tilting table 202 is connected to the top of the placement table 21 through the rotating shaft 201. Slideways 203 are installed on both sides of the tilting plate 202, and pulleys 204 are installed on both sides of the scraper 205. By installing the pulley 204 on the slideway 203, the scraper 205 can be easily slid. A fixing plate 209 is installed at the bottom of the placement table 21, and the servo motor 219 is installed and fixed by the fixing plate 209. The servo motor 210 is started to drive the rotating plate 211 to rotate, so that the rotating plate 211 can drive the tilting table 202 to be lifted. In this way, the debris on the tilting table 202 can be scraped into the collection box 212 by cooperating with the scraper 205, so that the table surface is cleaner and convenient for later geotechnical inspection.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rock and soil shear strength testing device, comprising a testing platform (1), characterized in that: The top of the detection platform (1) is fixedly connected to a support frame (3), an extrusion device (4) is installed on the inner top of the support frame (3), the left and right sides of the support frame (3) are fixedly connected to a cylinder (5), the output ends of the two cylinders (5) penetrate the left and right sides of the support frame (3) and are fixedly connected to a clamping plate (6), the two clamping plates (6) are slidably connected to a plurality of adjustment plates (7) on the far side, the left and right sides of the plurality of adjustment plates (7) are fixedly connected to a slide bar (8), the two clamping plates (6) are fixedly connected to a plurality of limit plates (9) on the far side, and the adjacent ends of the plurality of slide bars (8) penetrate the far side of the limit plate (9). The plurality of slide bars (8) are slidably connected to one side and are slidably connected to the inside of the clamping plate (6); the outer walls of the plurality of slide bars (8) are fixedly connected to springs (10); the tops of the two clamping plates (6) are provided with a plurality of slide grooves (11); the insides of the plurality of slide grooves (11) are slidably connected to adjusting bolts (12); the tops of the plurality of adjusting bolts (12) are fixedly connected to knobs (13); the bottoms of the plurality of adjusting bolts (12) are threadedly connected to the top of the adjusting plate (7); the top of the detection platform (1) is fixedly connected to cylinder 2 (20); the output end of the cylinder 2 (20) is fixedly connected to a placing platform (21); and the top of the detection platform (1) is provided with a cleaning mechanism (2).

2. The rock and soil shear strength testing device according to claim 1, characterized in that: The cleaning mechanism (2) comprises a rotating shaft (201), the ends of the rotating shaft (201) that are away from each other are rotatably connected to the right side of the top of the placing platform (21), the outer wall of the rotating shaft (201) is fixedly connected to a tilting platform (202), the top of the tilting platform (202) is fixedly connected to a slideway (203), the interiors of the two slideways (203) are slidably connected to pulleys (204), and the two adjacent pulleys (204) are rotatably connected to a scraper (205), a moving groove (208) is provided on the left side of the top of the placing platform (21), a fixed plate (209) is fixedly connected to the bottom of the placing platform (21), a servo motor (210) is fixedly connected to the front side of the fixed plate (209), the output end of the servo motor (210) passes through the front side of the fixed plate (209) and is fixedly connected to a rotating plate (211), and a collecting box (212) is provided on the right side of the top of the detection platform (1).

3. The rock and soil shear strength testing device according to claim 2, characterized in that: A handle (206) is fixedly connected to the left side of the scraper (205), and an anti-slip sleeve (207) is fixedly connected to the outer wall of the handle (206).

4. The rock and soil shear strength testing device according to claim 1, characterized in that: The top of the detection platform (1) is fixedly connected to a plurality of support rods (22), and the top ends of the plurality of support rods (22) are arranged at the bottom of the placement platform (21).

5. The rock and soil shear strength testing device according to claim 1, characterized in that: Adjacent sides of the plurality of adjustment plates (7) are all fixedly connected with rubber strips (14).

6. The rock and soil shear strength testing device according to claim 1, characterized in that: A switch box (15) is fixedly connected to the front side of the detection platform (1), and a dust cover (16) is rotatably connected to the front side of the switch box (15).

7. The rock and soil shear strength testing device according to claim 1, characterized in that: A plurality of support columns (17) are fixedly connected to the left and right sides of the detection platform (1), and a rubber pad (18) is fixedly connected to the bottom ends of the plurality of support columns (17).

8. The rock and soil shear strength testing device according to claim 7, characterized in that: The outer walls of the plurality of support columns (17) are all fixedly connected with reinforcement plates (19), and adjacent sides of the plurality of reinforcement plates (19) are all fixedly connected to the left and right sides of the detection platform (1).

Images