Rock double-sided shear test equipment

Abstract

The utility model belongs to the technical field of rock shear tests, and relates to rock double-sided shear test equipment which comprises a bottom plate, a top plate is arranged above the bottom plate, the bottom plate is fixedly connected with the top plate through a plurality of fixing columns, a base is fixed at the top end of the bottom plate, and a fixing base is slidably connected to the inner side of the lower end of the top plate. Two anti-falling moving blocks are fixed to the top end of the fixed base and both slidably connected with the top plate, an adjusting assembly is arranged at the position, corresponding to the fixed base, of the top plate, and a hydraulic machine is fixed to the lower end of the fixed base. According to the utility model, through the matched structural design of the fixed seat, the connecting seat and the dismounting assembly, when the test type of a sample needs to be replaced, the connecting seat and the shearing block can be dismounted through the dismounting assembly, so that different test shearing heads are replaced to carry out different tests; therefore, the limitation of the test type of the device is effectively reduced, and the universality of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rock shearing test technical field relates to a kind of rock double-face shearing test equipment. BACKGROUND

[0002] Rock shear strength refers to the maximum shear stress that rock can withstand when it is destroyed under shear load. Rock shear test is to apply vertical load by using mechanical testing machine, and to make rock sample cut along a shear plane by adjustable special clamp mold, and then to calculate normal stress on shear plane, tangential shear force, internal friction angle and cohesion and other mechanical parameters by using statics and statistics. In the design and construction process of railway, dam and other projects, rock shear test is one of the important means to analyze rock performance, and it is of great significance to the smooth implementation of project and the safety of building.

[0003] In the use of the above technology, it is found that the following technical problems exist in the prior art: the existing rock angle-variable shear test device can only perform single angle-variable shear test on rock samples, cannot perform other tests on the samples, and when direct shear test or compression test is needed, different equipment needs to be replaced to test the samples, which increases the cost of equipment and reduces the universality of the device. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model is that the existing rock angle-variable shear test device can only perform single angle-variable shear test on rock samples, cannot perform other tests on the samples, and when direct shear test or compression test is needed, different equipment needs to be replaced to test the samples, which increases the cost of equipment and reduces the universality of the device.

[0005] The rock double-face shearing test equipment disclosed in the utility model comprises a bottom plate, a top plate arranged at the upper position of the bottom plate, a plurality of fixed columns for fixedly connecting the bottom plate and the top plate, a base fixed to the top end of the bottom plate, a fixed base slidingly connected to the lower end of the top plate, two anti-dropping moving blocks fixed to the top end of the fixed base, the two anti-dropping moving blocks being slidingly connected to the top plate, an adjusting assembly arranged at the position corresponding to the fixed base of the top plate, a hydraulic machine fixed to the lower end of the fixed base, a fixed seat fixed to the extension end of the hydraulic machine and the top end of the base, two shearing blocks arranged at the position between the two fixed seats, a connecting seat fixed to the end of each shearing block away from each other, the connecting seat being slidingly connected to the fixed seat, and a dismounting assembly arranged at the position corresponding to the connecting seat on the inner side of the fixed seat, for mounting or dismounting the connecting seat.

[0006] The dismounting assembly comprises two sliding blocks, which are symmetrically arranged at positions corresponding to the two sides of the connecting seat on the inner side of the fixed seat and are in sliding connection with the fixed seat, one side of the sliding block close to the connecting seat is fixed with a limiting block, the limiting block is in sliding connection with the fixed seat, the connecting seat is provided with a limiting groove at a position corresponding to the limiting block, the limiting block is in plug-in connection with the connecting seat through the limiting groove, and the fixed seat is provided with a driving assembly at a position between the two sliding blocks on the inner side.

[0007] The driving assembly comprises a moving rod, which is arranged longitudinally on the inner side of the fixed seat and is in sliding connection with the fixed seat, one end of the moving rod extends to the outer side of the fixed seat, a first pull handle is fixed at one end of the moving rod on the outer side of the fixed seat, a connecting sliding block is fixed at the other end of the moving rod, the connecting sliding block is in sliding connection with the fixed seat, a driving block is fixed at one end of the connecting sliding block away from the moving rod, the driving block is in sliding connection with the fixed seat, a first spring is sleeved on one end of the moving rod close to the connecting sliding block, one end of the first spring is fixedly connected with the connecting sliding block, and the other end of the first spring is fixedly connected with the fixed seat.

[0008] The driving assembly further comprises a transmission rod, which is arranged transversely on the inner side of the fixed seat at a position between the two sliding blocks, the transmission rod is in rotary connection with the fixed seat, a driving gear is fixed at the middle position of the transmission rod, a driving rack is fixed at the lower end of the driving block and at a position corresponding to the driving gear, the driving rack is in meshing connection with the driving gear, transmission gears are fixed at both ends of the transmission rod, transmission racks are fixed at positions corresponding to the transmission gears of the sliding blocks, the transmission gears are in meshing connection with the transmission racks, and a plug-in groove is formed in one side of the connecting sliding block.

[0009] The plug-in assembly comprises a connecting rod, which is arranged transversely on the inner side of the fixed seat and close to the first pull handle, the connecting rod is in sliding connection with the fixed seat, one end of the connecting rod extends to the outer side of one side of the fixed seat, a second pull handle is fixed at one end of the connecting rod on the outer side of the fixed seat, and a plug-in block is fixed at the other end of the connecting rod.

[0010] A second spring is sleeved on one end of the connecting rod close to the plug-in block on the outer side, one end of the second spring is fixedly connected with the plug-in block, and the other end of the second spring is fixedly connected with the fixed seat.

[0011] The adjusting assembly comprises an adjusting screw rod, the adjusting screw rod is arranged transversely on the inner side of the top plate, the adjusting screw rod is rotationally connected with the top plate, the adjusting screw rod is threadedly connected with the fixed base, one end of the adjusting screw rod extends to the outer side of the top plate, and the end of the adjusting screw rod on the outer side of the top plate is fixedly provided with an adjusting handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: through the cooperation structure design of the fixed base, the connecting seat and the dismounting assembly, when the test type of the test sample needs to be replaced, the connecting seat and the shear block can be dismounted through the dismounting assembly, so that different test shear heads are replaced to carry out different tests, and the limitation of the test type of the device is effectively reduced, and the universality of the device is improved.

[0013] Through the structural design of the adjusting assembly, when the test sample needs to be tested at different angles, the fixed base can be adjusted in the horizontal axial direction, so that the shear block is moved through the hydraulic machine, the fixed base and the connecting seat, and the upper and lower shear blocks are adjusted to different vertical axes, the test sample is conveniently tested at different angles, when the compression test is carried out, the two shear blocks can be adjusted to the same disposal axis, and then different shear heads are replaced, the practicability of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural schematic view of the utility model.

[0015] Figure 2 It is the structural schematic view of the fixed base of the utility model.

[0016] Figure 3 It is the connecting structure schematic view of the connecting seat and the fixed base of the utility model.

[0017] Figure 4 It is the structural schematic view of the dismounting assembly of the utility model.

[0018] Figure 5 It is the structural schematic view of the plug-in assembly of the utility model.

[0019] Figure 6 It is the structural schematic view of the adjusting assembly of the utility model.

[0020] In the diagram: 1. Base plate; 2. Top plate; 3. Fixed column; 4. Fixed base; 5. Hydraulic press; 6. Fixed seat; 7. Shearing block; 8. Connecting seat; 9. Base; 10. Limiting groove; 11. Moving rod; 12. Connecting slider; 13. Driving block; 14. First spring; 15. First lifting handle; 16. Transmission rod; 17. Driving rack; 18. Driving gear; 19. Transmission gear; 20. Sliding block; 21. Transmission rack; 22. Limiting block; 23. Insertion block; 24. Connecting rod; 25. Second spring; 26. Second lifting handle; 27. Anti-detachment moving block; 28. Adjusting screw; 29. ​​Adjusting handle. Detailed Implementation

[0021] Example 1: As Figures 1-6 As shown, the system includes a base plate 1, a top plate 2 located above the base plate 1, and the base plate 1 and top plate 2 are fixedly connected by multiple fixing columns 3. A base 9 is fixed to the top of the base plate 1, and a fixed base 4 is slidably connected to the inner side of the lower end of the top plate 2. Two anti-detachment moving blocks 27 are fixed to the top of the fixed base 4, and both anti-detachment moving blocks 27 are slidably connected to the top plate 2. An adjustment component is provided at the position corresponding to the top plate 2 and the fixed base 4. A hydraulic press 5 is fixed to the lower end of the fixed base 4, and a fixed seat 6 is fixed to the telescopic end of the hydraulic press 5 and the top of the base 9. Two shearing blocks 7 are provided between the two fixed seats 6, and a connecting seat 8 is fixed to the ends of the two shearing blocks 7 that are far apart from each other. The connecting seat 8 is slidably connected to the fixed seat 6. A disassembly component is provided on the inner side of the fixed seat 6 at the position corresponding to the connecting seat 8 for installing or disassembling the connecting seat 8. During operation, the angle of the upper shear block 7 is first adjusted to a suitable position by adjusting the component. Then, the hydraulic press 5 is started to move the fixed seat 6, thereby driving the connecting seat 8 and the shear block 7 to perform a variable angle shear test on the sample placed on top of the lower shear block 7. When a compression test is required, the connecting seat 8 and the shear block 7 can be disassembled by disassembling the component. Then, a placement seat with a different shear head that matches it can be replaced. Then, the upper fixed base 4 is moved by adjusting the component so that the hydraulic press 5 and the base 9 are on the same axis, and subsequent tests can be carried out.

[0022] The design of the fixed base 6, connecting base 8 and disassembly assembly allows the connecting base 8 and shear block 7 to be disassembled when the test type of the sample needs to be changed. This allows for the replacement of different test shear heads to perform different tests, effectively reducing the limitations of the device's test types and improving the device's versatility.

[0023] Example 2: As Figures 3-5As shown, the dismounting assembly comprises two sliding blocks 20, which are symmetrically arranged at positions corresponding to the two sides of the connecting seat 8 on the inner side of the fixed seat 6, and are in sliding connection with the fixed seat 6. The side of the sliding block 20 close to the connecting seat 8 is fixed with a limiting block 22, which is in sliding connection with the fixed seat 6. The connecting seat 8 is provided with a limiting groove 10 at a position corresponding to the limiting block 22, and the limiting block 22 is in plug-in connection with the connecting seat 8 through the limiting groove 10. The fixed seat 6 is provided with a driving assembly at a position between the two sliding blocks 20 on the inner side. When dismounting is needed, the sliding block 20 is first moved upward by the driving assembly, and the movement of the sliding block 20 drives the limiting block 22 fixed thereto to move simultaneously. When the limiting block 22 moves away from the connecting seat 8, the connecting seat 8 can be removed from the inner side of the fixed seat 6, and the dismounting work is completed.

[0024] The driving assembly comprises a moving rod 11, which is longitudinally arranged on the inner side of the fixed seat 6 and is in sliding connection with the fixed seat 6. One end of the moving rod 11 extends to the outer side of the fixed seat 6. In order to facilitate the movement of the moving rod 11, a first pull handle 15 is fixed to the end of the moving rod 11 on the outer side of the fixed seat 6. The other end of the moving rod 11 is fixed with a connecting sliding block 12, which is in sliding connection with the fixed seat 6. The end of the connecting sliding block 12 away from the moving rod 11 is fixed with a driving block 13, which is in sliding connection with the fixed seat 6. In order to facilitate the limiting of the connecting sliding block 12 and the driving block 13, a first spring 14 is sleeved on the end of the moving rod 11 close to the connecting sliding block 12. One end of the first spring 14 is fixedly connected with the connecting sliding block 12, and the other end is fixedly connected with the fixed seat 6.

[0025] The driving assembly further comprises a transmission rod 16, which is transversely arranged on the inner side of the fixed seat 6 at a position between the two sliding blocks 20 and is in rotating connection with the fixed seat 6. In order to facilitate the rotation of the transmission rod 16, a driving gear 18 is fixed to the middle position of the transmission rod 16. The lower end of the driving block 13 and the position corresponding to the driving gear 18 are fixedly connected with a driving rack 17, which is in meshing connection with the driving gear 18. In order to facilitate the movement of the sliding block 20, the two ends of the transmission rod 16 are fixed with transmission gears 19. The position corresponding to the transmission gear 19 of the sliding block 20 is fixedly connected with a transmission rack 21, which is in meshing connection with the transmission gear 19. One side of the connecting sliding block 12 is provided with a plug-in groove, and the inner side of the fixed seat 6 and the position corresponding to the plug-in groove are provided with a plug-in assembly.

[0026] When disassembling, first pull the first pull handle 15, so that the first pull handle 15 drives the driving block 13 to move through the moving rod 11 and the connecting slider 12, when the driving block 13 moves, the driving rack 17 moves at the same time, so that the transmission rod 16 is driven to rotate through the driving gear 18 engaged with the driving rack 17, when the transmission rod 16 rotates, the sliding block 20 is driven to move through the transmission gear 19 and the transmission rack 21, and then the limiting block 22 can be driven to move at the same time, when the limiting block 22 moves away from the connecting seat 8, the insertion assembly completes the limiting of the connecting slider 12, so that the connecting slider 12 cannot move, that is, the connecting seat 8 can be removed from the inside of the fixed seat 6, and the disassembly work is completed. When installing, move the connecting seat 8 to the inside of the fixed seat 6, then cancel the limiting of the connecting slider 12 by the insertion assembly, at this time the connecting slider 12 and the driving block 13 are pushed to the direction close to the connecting slider 12 under the elastic action of the first spring 14, so that the driving gear 18 reversely rotates, thereby driving the sliding block 20 and the limiting block 22 to move downward, when the limiting block 22 moves to the inside of the limiting groove 10, the limiting of the connecting seat 8 is completed, and the installation work is completed.

[0027] Example 3: as Figure 4 and Figure 5As shown, the plug-in assembly includes a connecting rod 24, which is transversely arranged inside the fixed seat 6 and close to the position of the first pull handle 15, the connecting rod 24 is in sliding connection with the fixed seat 6, one end of the connecting rod 24 extends to the outside of one side of the fixed seat 6, and the end of the connecting rod 24 outside the fixed seat 6 is fixed with a second pull handle 26, and the other end of the connecting rod 24 is fixed with a plug-in block 23, wherein the plug-in block 23 is arranged as an inclined surface close to one side of the connecting sliding block 12, and the plug-in block 23 is in plug-in connection with the connecting sliding block 12 through a plug-in slot; a second spring 25 is sleeved outside one end of the connecting rod 24 close to the plug-in block 23, one end of the second spring 25 is fixedly connected with the plug-in block 23, and the other end of the second spring 25 is fixedly connected with the fixed seat 6. During disassembly, the connecting sliding block 12 is pressed when moving, so that the plug-in block 23 moves in the direction close to the connecting rod 24, and when the connecting sliding block 12 moves to the position corresponding to the plug-in slot and the plug-in block 23, the plug-in block 23 moves into the plug-in slot under the elastic action of the second spring 25, thereby limiting the connecting sliding block 12, and the connecting seat 8 is taken out without continuing to pull the first pull handle 15, and when installing, after the connecting seat 8 moves to the inside of the fixed seat 6, the second pull handle 26 can be directly pulled to drive the plug-in block 23 to move through the connecting rod 24, when the plug-in block 23 moves away from the connecting sliding block 12, the connecting sliding block 12 and the driving block 13 move away from the first pull handle 15 under the elastic action of the first spring 14, thereby driving the transmission rod 16 to rotate in reverse, so that the sliding block 20 and the limiting block 22 move downward to limit the connecting seat 8, that is, the installation is completed, and the operation convenience is improved.

[0028] Embodiment 4: as Figure 2 and Figure 6 As shown, the adjusting assembly includes an adjusting screw 28, which is transversely arranged inside the top plate 2, the adjusting screw 28 is in rotational connection with the top plate 2, the adjusting screw 28 is in threaded connection with the fixed base 4, one end of the adjusting screw 28 extends to the outside of the top plate 2, and the end of the adjusting screw 28 outside the top plate 2 is fixed with an adjusting handle 29. Through the structural design of the adjusting assembly, the fixed base 4 can be adjusted in the horizontal axis direction when the angle of the sample needs to be changed, so that the shearing block 7 is moved through the hydraulic machine 5, the fixed seat 6 and the connecting seat 8, and the upper and lower shearing blocks 7 are adjusted to different vertical axes, facilitating the angle test, and when the compression test is performed, the two shearing blocks 7 can be adjusted to the same disposal axis, and then different shearing heads are replaced, thereby improving the practicability of the device.

[0029] In the utility model, the description of the structure direction and relative position relation, such as the description of before, after, left, right, up and down, does not constitute the limitation to the utility model, and is only convenient for description.

Claims

1. A rock double-shear test apparatus, characterized by: The utility model relates to a kind of hydraulic cutting machine, including bottom plate (1), the top position of the bottom plate (1) is provided with top plate (2), the bottom plate (1) is fixedly connected with top plate (2) by multiple fixed columns (3), the top end of the bottom plate (1) is fixed with base (9), the inner side of the lower end of the top plate (2) is slidably connected with fixed pedestal (4), the top end of the fixed pedestal (4) is fixed with two anti-escape moving blocks (27), two the anti-escape moving blocks (27) are slidably connected with top plate (2), the position corresponding with fixed pedestal (4) of the top plate (2) is provided with adjusting assembly, the lower end of the fixed pedestal (4) is fixed with hydraulic machine (5), the telescopic end of the hydraulic machine (5) and the top end of base (9) are fixed with fixed seat (6), two the fixed seat (6) between the position is provided with two shearing blocks (7), the end of two the shearing blocks (7) away from each other is fixed with connecting seat (8), the connecting seat (8) is slidably connected with fixed seat (6), the inner side of fixed seat (6) and the position corresponding with connecting seat (8) is provided with dismounting assembly, for installing or dismounting connecting seat (8).

2. The rock double-shear test apparatus according to claim 1, characterized in that: The dismounting assembly includes two sliding blocks (20), two the sliding blocks (20) are respectively arranged in the inner side of fixed seat (6) and the position corresponding with both sides of connecting seat (8), the sliding block (20) is slidably connected with fixed seat (6), the side of the sliding block (20) close to connecting seat (8) is fixed with limit block (22), the limit block (22) is slidably connected with fixed seat (6), the position corresponding with connecting seat (8) of the limit block (22) is provided with limit slot (10), the limit block (22) is insertedly connected with connecting seat (8) through limit slot (10), the inner side of fixed seat (6) and the position between two sliding blocks (20) are provided with driving assembly.

3. The rock double-shear test apparatus according to claim 2, characterized in that: The driving assembly includes moving rod (11), the moving rod (11) is longitudinally arranged in the inner side of fixed seat (6), the moving rod (11) is slidably connected with fixed seat (6), one end of the moving rod (11) extends to the outside of fixed seat (6), the end of the moving rod (11) outside fixed seat (6) is fixed with first pull handle (15), the other end of the moving rod (11) is fixed with connecting sliding block (12), the connecting sliding block (12) is slidably connected with fixed seat (6), the end of the connecting sliding block (12) away from the moving rod (11) is fixed with driving block (13), the driving block (13) is slidably connected with fixed seat (6), the first spring (14) is arranged on the end of the moving rod (11) close to connecting sliding block (12) outside, one end of the first spring (14) is fixedly connected with connecting sliding block (12), the other end of the first spring (14) is fixedly connected with fixed seat (6).

4. The rock double-shear test apparatus according to claim 3, characterized in that: The driving assembly further comprises a transmission rod (16) which is transversely arranged inside the fixed seat (6) and located between the two sliding blocks (20), the transmission rod (16) is rotationally connected with the fixed seat (6), a driving gear (18) is fixed at the middle position of the transmission rod (16), a driving rack (17) is fixed at the lower end of the driving block (13) and corresponding to the driving gear (18), the driving rack (17) is meshingly connected with the driving gear (18), transmission gears (19) are fixed at both ends of the transmission rod (16), transmission racks (21) are fixed at positions corresponding to the transmission gears (19) of the sliding blocks (20), the transmission gears (19) are meshingly connected with the transmission racks (21), a plug-in slot is formed on one side of the connecting sliding block (12), and a plug-in assembly is arranged inside the fixed seat (6) and corresponding to the plug-in slot.

5. The rock double-shear test apparatus according to claim 4, characterized in that: The plug-in assembly comprises a connecting rod (24) which is transversely arranged inside the fixed seat (6) and close to the first pull handle (15), the connecting rod (24) is slidingly connected with the fixed seat (6), one end of the connecting rod (24) extends to the outside of one side of the fixed seat (6), a second pull handle (26) is fixed at the end of the connecting rod (24) outside the fixed seat (6), and a plug-in block (23) is fixed at the other end of the connecting rod (24), the plug-in block (23) is plug-in connected with the connecting sliding block (12) through the plug-in slot.

6. The rock double-shear test apparatus according to claim 5, characterized in that: A second spring (25) is sleeved at the end of the connecting rod (24) outside the plug-in block (23), one end of the second spring (25) is fixedly connected with the plug-in block (23), and the other end of the second spring (25) is fixedly connected with the fixed seat (6).

7. The rock double-shear test apparatus of claim 1, wherein: The adjusting assembly comprises an adjusting screw rod (28) which is transversely arranged inside the top plate (2), the adjusting screw rod (28) is rotationally connected with the top plate (2), the adjusting screw rod (28) is threadedly connected with the fixed base (4), one end of the adjusting screw rod (28) extends to the outside of the top plate (2), and an adjusting handle (29) is fixed at the end of the adjusting screw rod (28) outside the top plate (2).

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