Rock mechanical property testing device

Abstract

The invention belongs to the technical field of rock mechanical testing equipment, and particularly relates to a rock mechanical property testing device. The rock mechanical property testing device comprises a bottom plate, a longitudinal supporting part and a horizontal testing part. The longitudinal supporting part comprises a first vertical beam and a second vertical beam, and the horizontal testing part comprises a first horizontal testing assembly, a second horizontal testing assembly, a first lifting structure and a second lifting mechanism. The first lifting mechanism and the second lifting mechanism are configured to change the contact form between the first horizontal testing assembly and the rock sample as well as between the second horizontal testing assembly and the rock sample through lifting adjustment, so that a shear stress test and a horizontal compression test can be performed on the rock sample by utilizing the horizontal testing part. According to the rock mechanical property testing device, multiple purposes can be achieved more quickly, the precision and the working efficiency of rock sample mechanical property testing can be improved, and the rock mechanical property testing device has good application prospects in the field.

Description

Technical Field

[0001] The invention belongs to the technical field of rock mechanics testing equipment, and in particular relates to a rock mechanics property testing device. Background Art

[0002] Rock mechanics property testing is a type of test that uses rock mechanics experiments to understand the mechanical properties, deformation, and failure laws of rocks and rock masses, as well as the physical and mechanical effects of various structures on rock masses, to provide the required parameters for engineering design and construction.

[0003] To test the mechanical properties of rocks, a rock mechanical properties testing device is needed. The existing testing device can test different mechanical properties on the same testing machine, achieving the purpose of one machine for multiple uses. For example, the Chinese invention patent (CN107121331A) discloses a multifunctional rock mechanical properties tester, which controls the left tensile arm and the right tensile arm respectively through two horizontal power sources, and sets the two tensile arms to be L-shaped, so as to realize the shear stress test or bidirectional compression property test on the rock specimen. However, the tester provided by the invention is limited by the size of the rock specimen. When the rock specimen is large, the structure can only perform the shear stress test, and when the rock specimen is small, the structure can only perform the bidirectional compression property test. In addition, the device installs a vertical power source on the suspension arm, and connects the jack structure at the bottom of the bottom shaft, so that the rock can be subjected to a biaxial compression test in the vertical direction. However, the device needs to place the rock specimen on the test turntable for testing, and cannot directly perform the biaxial compression test in the vertical direction after the rock is subjected to the shear stress test, and the test efficiency is low. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a rock mechanical property testing device.

[0005] The rock mechanical properties testing device comprises:

[0006] Base plate;

[0007] A longitudinal support portion, comprising a first vertical beam and a second vertical beam arranged opposite to each other above the bottom plate;

[0008] The horizontal test part comprises a first horizontal test component and a second horizontal test component which are respectively arranged on the first vertical beam and the second vertical beam and are both constructed to have a telescopic function in the horizontal direction, the first horizontal test component is arranged to be higher than the second horizontal test component, a first lifting mechanism is arranged at the end of the first horizontal test component, and a second lifting mechanism is arranged at the end of the second horizontal test component.

[0009] The first lifting mechanism and the second lifting mechanism are configured to be able to change the contact form between the first lifting mechanism and the second lifting mechanism and the rock sample through lifting and adjusting, so that the horizontal testing part can be used to perform shear stress test and horizontal compression test on the rock sample.

[0010] As an extension of the above technical solution, the present invention also includes the following embodiments:

[0011] The first lifting mechanism includes a first flat plate, a first lifting plate arranged at a free end of the first flat plate and extending perpendicularly to the first flat plate, and a first lifting power unit for driving the first lifting plate to lift and lower.

[0012] The second lifting mechanism includes a second flat plate, a second lifting plate arranged at a free end of the second flat plate and extending perpendicularly to the second flat plate, and a second lifting power unit for driving the second lifting plate to lift and lower.

[0013] The rock sample is arranged between the first flat plate, the second flat plate, the first lifting plate and the second lifting plate.

[0014] When the first lifting plate and the second lifting plate are not in contact with the second flat plate and the first flat plate, the rock mechanics properties testing device can perform a shear stress test on the rock sample, and when the first lifting plate and the second lifting plate are in contact with the second flat plate and the first flat plate respectively, the rock mechanics properties testing device can perform a horizontal compression test on the rock sample.

[0015] A first sliding groove which penetrates vertically and a first rotating cavity which is connected to the first sliding groove are provided at the free end of the first flat plate. The first lifting plate is vertically arranged in the first sliding groove. The first lifting power unit is configured to be at least partially arranged inside the first rotating cavity and in contact with the first lifting plate so as to drive the first lifting plate to perform lifting operations in the longitudinal direction.

[0016] The first lifting mechanism includes a first U-shaped plate, on which a second slide groove with an upper opening and a third slide groove with a side opening are arranged, the third slide groove is arranged above the second slide groove, and the second slide groove is connected to the third slide groove, one end of the first U-shaped plate is located inside the second slide groove, and the other end is fixedly connected to the top surface of the first flat plate.

[0017] The first lifting power unit includes a first spur gear located inside the first rotating chamber, and a first motor connected to the first spur gear through a first output end, and a first tooth surface meshing with the first spur gear is provided on the side where the first lifting plate contacts the first spur gear.

[0018] A fourth sliding groove which penetrates vertically and a second rotating cavity which is connected to the fourth sliding groove are provided at the free end of the second flat plate. The second lifting plate is vertically penetrated in the fourth sliding groove. The second lifting power unit is configured to be at least partially arranged inside the second rotating cavity and in contact with the second lifting plate so as to drive the second lifting plate to perform lifting operations in the longitudinal direction.

[0019] The second lifting mechanism includes a second U-shaped plate, on which a fifth slide groove with an opening at the lower end and a sixth slide groove with an opening at the side are arranged, the sixth slide groove is arranged below the fifth slide groove, and the fifth slide groove is communicated with the sixth slide groove, one end of the second U-shaped plate is located inside the fifth slide groove, and the other end is fixedly connected to the bottom surface of the second flat plate.

[0020] The second lifting power unit includes a second spur gear located inside the second rotating chamber, and a second motor connected to the second spur gear through a second output end, and a second tooth surface meshing with the second spur gear is provided on the side where the second lifting plate contacts the second spur gear.

[0021] The height adjustment mechanism includes a height adjustment power unit, a transmission unit arranged in contact with the height adjustment power unit, and a power output unit arranged in contact with the transmission unit, the first vertical beam and the second vertical beam are sleeved on the power output unit, and the height adjustment mechanism is constructed to be able to drive the first vertical beam and the second vertical beam to move in opposite directions in the vertical direction within the same time period through the interlocking operation of the height adjustment power unit, the transmission unit and the power output unit.

[0022] A control room is opened inside the base plate, and the height adjustment power unit includes a third motor arranged at the side wall of the base plate, and a first bevel gear arranged inside the control room and connected to the third motor by the rotating shaft of the third motor which passes through the side wall of the base plate and extends into the control room.

[0023] The transmission part includes a first transmission assembly arranged inside the control room, the power output part includes a first power output assembly partially arranged inside the control room and partially extending out of the upper surface of the base plate, and the first vertical beam is sleeved on the first power output assembly.

[0024] The first transmission assembly includes a second bevel gear vertically meshed with the first bevel gear, a first transmission rod extending to the left from the second bevel gear, and a third bevel gear arranged at the left end of the first transmission rod, the first power output assembly includes a first power output rod extending upward from the bottom of the control room, and a fourth bevel gear sleeved on the first power output rod and vertically meshed with the third bevel gear, a first external thread rotating clockwise / counterclockwise from bottom to top is arranged on the upper side wall of the first power output rod, and the first vertical beam is connected to the first power output rod by a first internal thread corresponding to the first external thread arranged therein.

[0025] The transmission part includes a second transmission assembly arranged inside the control room, the power output part includes a second power output assembly partially arranged inside the control room and partially extending out of the upper surface of the base plate, and the second vertical beam is sleeved on the second power output assembly.

[0026] The second transmission assembly includes a fifth bevel gear vertically meshed with the first bevel gear, a second transmission rod extending to the right from the fifth bevel gear, and a sixth bevel gear arranged at the right end of the second transmission rod, the second power output assembly includes a second power output rod extending upward from the bottom of the control room, and a seventh bevel gear sleeved on the second power output rod and vertically meshed with the sixth bevel gear, a second external thread rotating in a counter / clockwise / direction from bottom to top is arranged on the upper side wall of the second power output rod, and the second vertical beam is connected to the second power output rod by a second internal thread corresponding to the second external thread arranged therein.

[0027] It includes a support portion which is arranged below the bottom plate to support the bottom plate off the ground.

[0028] The vertical test section includes a first vertical test component, one end of which is arranged on the ground, and the other end of which passes through the bottom plate and extends upward to a certain position below the horizontal test section; and a second vertical test component is arranged on a cantilever beam horizontally extending to the right from the top of the first vertical beam, and extends downward to a certain position above the horizontal test section. The first vertical test component and the second vertical test component are configured to be able to be extended and retracted, so as to perform a compression test in the vertical direction on the rock sample between the horizontal test sections.

[0029] The advantages of the present invention compared to the prior art are:

[0030] Through the design of the horizontal test part and the coordination between the horizontal test part and other components, the function of performing both shear stress test and horizontal compression test on rock samples of different sizes is achieved. Therefore, on the one hand, the size requirements for rock samples are greatly reduced, the sample preparation burden of the staff is reduced, and the work efficiency of rock mechanical property testing is improved. On the other hand, since the shear stress test and the horizontal compression test use the same rock sample, the error in the test results caused by different samples is reduced, and the accuracy of the test structure is improved. In addition, the rock mechanical property testing device can also perform compression test on the rock sample in the vertical direction without moving the rock sample, realizing multiple uses of one machine in a more convenient way. In short, the rock mechanical property testing device according to the present invention has good application prospects in the field of this technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a rock mechanical property testing device according to the present invention;

[0032] Figure 2 It is a partial enlarged schematic diagram including the first lifting mechanism area;

[0033] Figure 3 is a schematic diagram of the connection between the first lifting mechanism and the first telescopic rod;

[0034] Figure 4 is a side cross-sectional view of a first lifting mechanism;

[0035] Figure 5 It is a partial enlarged schematic diagram including the second lifting mechanism area;

[0036] Figure 6 is a schematic diagram of the connection between the second lifting mechanism and the second telescopic rod;

[0037] Figure 7 is a side cross-sectional view of the second lifting mechanism;

[0038] Figure 8 is a cross-sectional view of a rock mechanical properties testing device according to the present invention;

[0039] Fig. 9 This is a top view of the base plate and associated parts.

[0040] All drawings in the present invention are schematic diagrams for illustrating structures and principles, and are not necessarily drawn according to actual sizes and proportions.

[0041] The specific meanings of the reference numerals in the figures are as follows:

[0042] 1. Bottom plate; 11. Control room; 111. Mounting plate; 112. First bearing; 113. Second bearing; 2. Longitudinal support; 21. First vertical beam; 211. Cantilever beam; 22. Second vertical beam; 3. Horizontal test section; 31. First horizontal test assembly; 311. First telescopic rod; 3111. First groove; 3112. First slide bar; 312. Fourth motor; 32. Second horizontal test assembly; 321. Second telescopic rod; 3211. Second groove; 3212. Second slide bar; 322. Fifth motor; 33. First lifting mechanism; 331. First plate; 3311, first chute; 3312, first rotating chamber; 3313, first connecting block; 332, first lifting plate; 3321, second chute; 3322, third chute; 3323, first tooth surface; 333, first lifting power unit; 3331, first spur gear; 3332, first motor; 334, first U-shaped plate; 34, second lifting mechanism; 341, second plate; 3411, fourth chute; 3412, second rotating chamber; 3413, second connecting block; 342, second lifting plate; 3421, fifth chute; 3422, sixth Slideway; 3423, second tooth surface; 343, second lifting power unit; 3431, second spur gear; 3432, second motor; 344, second U-shaped plate; 4, rock sample; 5, height adjustment mechanism; 51, height adjustment power unit; 511, third motor; 512, first bevel gear; 52, transmission unit; 521, first transmission assembly; 5211, second bevel gear; 5212, first transmission rod; 5213, third bevel gear; 522, second transmission assembly; 5221, fifth bevel gear; 5222, second transmission rod; 5223, sixth bevel gear ; 53. Power output unit; 531. First power output assembly; 5311. First power output rod; 5312. Fourth bevel gear; 5313. First limit rod; 532. Second power output assembly; 5321. Second power output rod; 5322. Seventh bevel gear; 5323. Second limit rod; 6. Support unit; 7. Vertical test unit; 71. First vertical test assembly; 711. Sixth motor; 712. Third telescopic rod; 72. Second vertical test assembly; 721. Seventh motor; 722. Fourth telescopic rod; 100. Rock mechanical properties testing device. DETAILED DESCRIPTION

[0043] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0044] Figure 1It is a structural schematic diagram of a rock mechanical property testing device 100 according to the present invention. As shown in the figure, the rock mechanical property testing device 100 includes a base plate 1, a longitudinal support part 2 and a horizontal testing part 3. The base plate 1 is constructed as a plate-like structure with a flat surface. The longitudinal support part 2 includes a first vertical beam 21 and a second vertical beam 22, and the first vertical beam 21 and the second vertical beam 22 are relatively arranged above the base plate 1. The horizontal testing part 3 includes a first horizontal testing component 31 and a second horizontal testing component 32, and the first horizontal testing component 31 and the second horizontal testing component 32 are respectively arranged on the first vertical beam 21 and the second vertical beam 22, and are both constructed to have a telescopic function in the horizontal direction. The first horizontal testing component 31 is set higher than the second horizontal testing component 32, and a first lifting mechanism 33 is arranged at the end of the first horizontal testing component 31, and a second lifting mechanism 34 is arranged at the end of the second horizontal testing component 32. Furthermore, the first lifting mechanism 33 and the second lifting mechanism 34 are configured to be able to change the contact form between the first lifting mechanism 33 and the second lifting mechanism 34 and the rock sample 4 through lifting and adjusting, so that the horizontal testing part 3 can be used to perform shear stress test and horizontal compression test on the rock sample 4.

[0045] During specific operations, the rock sample 4 is arranged on the horizontal testing part 3. The staff can achieve the contact form between the first lifting mechanism 33 and the second lifting mechanism 34 and the rock sample 4 by adjusting the lifting and lowering of the first lifting mechanism 33 and the second lifting mechanism 34 according to the test needs, so that the horizontal testing part 3 can be used to perform shear stress test and horizontal compression test on the same rock sample 4.

[0046] According to the rock mechanical properties testing device 100 of the present invention, through the design of the horizontal testing part 3 and the coordination between the horizontal testing part 3 and other components, the function of performing both shear stress testing and horizontal compression testing on rock samples 4 of different sizes is achieved. Therefore, on the one hand, the size requirements for the rock samples 4 are greatly reduced, the sample preparation burden of the staff is reduced, and the work efficiency of the rock mechanical properties test is improved. On the other hand, since the same rock sample 4 is used for the shear stress test and the horizontal compression test, the error in the test result caused by the different samples is reduced, and the accuracy of the test structure is improved.

[0047] like Figure 1 , Figure 2 and Figure 5As shown, in one embodiment of the present invention, the first lifting mechanism 33 includes a first flat plate 331, a first lifting plate 332 and a first lifting power unit 333. The first flat plate 331 is configured as a plate-like object with a flat surface, the first lifting plate 332 is arranged at the free end of the first flat plate 331 and extends perpendicularly to the first flat plate 331, and the first lifting power unit 333 is configured to be able to drive the lifting of the first lifting plate 332. The second lifting mechanism 34 includes a second flat plate 341, a second lifting plate 342 and a second lifting power unit 343. The second flat plate 341 is configured as a plate-like object with a flat surface, the second lifting plate 342 is arranged at the free end of the second flat plate 341 and extends perpendicularly to the second flat plate 341, and the second lifting power unit 343 is configured to be able to drive the lifting of the second lifting plate 342. The rock sample 4 is arranged between the first flat plate 331, the second flat plate 341, the first lifting plate 332 and the second lifting plate 342. And when the first lifting plate 332 and the second lifting plate 342 are not in contact with the second flat plate 341 and the first flat plate 331, the staff can use the rock mechanics property testing device 100 to perform a shear stress test on the rock sample 4, and when the first lifting plate 332 and the second lifting plate 342 are in contact with the second flat plate 341 and the first flat plate 331 respectively, the staff can use the rock mechanics property testing device 100 to perform a horizontal compression test on the rock sample 4. Through this design, the rock mechanics property testing device 100 realizes the function of performing both a shear stress test and a horizontal compression test on the same rock sample 4. The technical effect that can be produced by this function has been described in detail above and will not be repeated here.

[0048] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, a first slide slot 3311 that passes through from top to bottom and a first rotating cavity 3312 that is connected to the first slide slot 3311 are provided at the free end of the first flat plate 331. The first lifting plate 332 is vertically penetrated inside the first slide slot 3311, and the first lifting power unit 333 is configured to be at least partially disposed inside the first rotating cavity 3312 and in contact with the first lifting plate 332, so as to drive the first lifting plate 332 to perform lifting operations in the longitudinal direction. Through this design, a stable connection or contact setting between the first lifting plate 332, the first lifting power unit 333 and the first flat plate 331 is achieved, ensuring the smooth realization of the lifting function of the first lifting mechanism 33.

[0049] like Figure 1 , Figure 2 and Figure 4As shown, in one embodiment of the present invention, the first lifting mechanism 33 includes a first U-shaped plate 334, and a second slide groove 3321 with an upper end opening and a third slide groove 3322 with a side opening are arranged on the first lifting plate 332, and the third slide groove 3322 is arranged above the second slide groove 3321, and the second slide groove 3321 is connected to the third slide groove 3322, and one end of the first U-shaped plate 334 is located inside the second slide groove 3321, and the other end is fixedly connected to the top of the first flat plate 331. Through this design, the first U-shaped plate 334 fixedly connected to the first flat plate 331 is used to improve the stability of the first lifting plate 332 during the lifting process, so as to facilitate the horizontal test part 3 to stably clamp the rock sample 4, so as to facilitate the smooth progress of the test and also to improve the accuracy of the test results.

[0050] like Figure 1 and Figure 2 As shown, in one embodiment of the present invention, the first lifting power unit 333 includes a first spur gear 3331 and a first motor 3332. The first spur gear 3331 is located inside the first rotating chamber 3312, and the first motor 3332 is connected to the first spur gear 3331 through a first output end (not shown). The first lifting plate 332 is in contact with the first spur gear 3331, and a first tooth surface 3323 meshing with the first spur gear 3331 is provided on the side of the first lifting plate 332 in contact with the first spur gear 3331. During specific operation, the first motor 3332 rotates to drive the first spur gear 3331 to rotate through the first output end, and the first spur gear 3331 drives the first tooth surface 3323 meshing therewith to move up and down. Since the first tooth surface 3323 is a part of the first lifting plate 332, the first lifting plate 332 will also move up and down, thereby conveniently realizing the function of lifting up and down.

[0051] like Figure 1 and Figure 3 As shown, in one embodiment of the present invention, the first horizontal test assembly 31 includes a first telescopic rod 311 with a telescopic function connected to the first flat plate 331. Through the arrangement of the first telescopic rod 311, the first flat plate 331 can move left and right in the horizontal direction, thereby driving the first lifting plate 332 to move left and right in the horizontal direction, thereby facilitating the horizontal test part 3 to perform appropriate adjustments when testing rock samples 4 with different sizes in the horizontal direction.

[0052] Furthermore, the first telescopic rod 311 includes a first groove 3111 arranged at the free end and a plurality of first sliding rods 3112 arranged to be inserted into the first groove 3111, and a first connecting block 3313 protruding outward is arranged at the end of the first plate 331 that contacts the first telescopic rod 311, and a first through hole (not shown, the same below) corresponding to the first sliding rod 3112 is arranged on the first connecting block 3313. During specific installation, the first connecting block 3313 extends into the first groove 3111, and then the first sliding rod 3112 is inserted into the corresponding first through hole in turn, thereby completing a stable connection between the first telescopic rod 311 and the first plate 331.

[0053] Furthermore, a fourth motor 312 is disposed on the outer side of the first telescopic rod 311 , and the fourth motor 312 can provide power for the telescopic operation of the first telescopic rod 311 .

[0054] like Figure 1 and Figure 5 As shown, in one embodiment of the present invention, a fourth slide slot 3411 that is through-type and a second rotating cavity 3412 that is connected to the fourth slide slot 3411 are provided at the free end of the second flat plate 341. The second lifting plate 342 is vertically penetrated inside the fourth slide slot 3411, and the second lifting power unit 343 is configured to be at least partially disposed inside the second rotating cavity 3412 and contact the second lifting plate 342 to drive the second lifting plate 342 to perform lifting operations in the longitudinal direction. Through this design, a stable connection or contact setting between the second lifting plate 342, the second lifting power unit 343 and the second flat plate 341 is achieved, ensuring the smooth realization of the lifting function of the second lifting mechanism 34.

[0055] like Figure 1 , Figure 5 and Figure 7 As shown, in one embodiment of the present invention, the second lifting mechanism 34 includes a second U-shaped plate 344, a fifth chute 3421 with an opening at the lower end and a sixth chute 3422 with an opening at the side are arranged on the second lifting plate 342, the sixth chute 3422 is arranged below the fifth chute 3421, and the fifth chute 3421 is connected to the sixth chute 3422, one end of the second U-shaped plate 344 is located inside the fifth chute 3421, and the other end is fixedly connected to the bottom of the second flat plate 341. Through this design, the second U-shaped plate 344 fixedly connected to the second flat plate 341 is used to improve the stability of the second lifting plate 342 during the lifting process, so as to facilitate the horizontal test part 3 to stably clamp the rock sample 4, so as to facilitate the smooth progress of the test and also to improve the accuracy of the test results.

[0056] like Figure 1 and Figure 5 As shown, in one embodiment of the present invention, the second lifting power unit 343 includes a second spur gear 3431 and a second motor 3432. The second spur gear 3431 is located inside the second rotating chamber 3412, and the second motor 3432 is connected to the second spur gear 3431 through a second output end (not shown). The second lifting plate 342 is in contact with the second spur gear 3431, and a second tooth surface 3423 meshing with the second spur gear 3431 is provided on the side of the second lifting plate 342 in contact with the second spur gear 3431. During specific operation, the second motor 3432 rotates to drive the second spur gear 3431 to rotate through the second output end, and the second spur gear 3431 drives the second tooth surface 3423 meshing with it to move up and down. Since the second tooth surface 3423 is a part of the second lifting plate 342, the second lifting plate 342 will also move up and down, thereby realizing the function of lifting up and down.

[0057] like Figure 1 and Figure 6 As shown, in one embodiment of the present invention, the second horizontal test assembly 32 includes a second telescopic rod 321 with a telescopic function connected to the second flat plate 341. The second telescopic rod 321 is provided so that the second flat plate 341 can move left and right in the horizontal direction, thereby driving the second lifting plate 342 to move left and right in the horizontal direction, thereby facilitating the horizontal test part 3 to perform appropriate adjustments when testing rock samples 4 with different sizes in the horizontal direction.

[0058] Furthermore, the second telescopic rod 321 includes a second groove 3211 arranged at the free end and a plurality of second sliding rods 3212 arranged to be inserted into the second groove 3211, and a second connecting block 3413 protruding outward is provided at the end of the second plate 341 that contacts the second telescopic rod 321, and a second through hole (not shown, the same below) corresponding to the second sliding rod 3212 is provided on the second connecting block 3413. During specific installation, the second connecting block 3413 extends into the second groove 3211, and then the second sliding rod 3212 is inserted into the corresponding second through hole in turn, thereby completing a stable connection between the second telescopic rod 321 and the second plate 341.

[0059] Furthermore, a fifth motor 322 is disposed on the outer side of the second telescopic rod 321 , and the fifth motor 322 can provide power for the telescopic operation of the second telescopic rod 321 .

[0060] like Figure 1 and Figure 8As shown, in one embodiment of the present invention, the rock mechanical properties testing device 100 includes a height adjustment mechanism 5. The height adjustment mechanism 5 includes a height adjustment power unit 51, a transmission unit 52 and a power output unit 53. The transmission unit 51 is located between the height adjustment power unit 51 and the power output unit 53, and is in contact with both the height adjustment power unit 51 and the power output unit 53. The first vertical beam 21 and the second vertical beam 22 are sleeved on the power output unit 53. In addition, the height adjustment structure 5 is configured to be able to drive the first vertical beam 21 and the second vertical beam 22 to move in opposite directions in the vertical direction within the same time period through the interlocking operation of the height adjustment power unit 51, the transmission unit 52 and the power output unit 53. Through this design, the height adjustment mechanism 5 can be used to realize the first vertical beam 21 and the second vertical beam 22 to move in opposite directions in the vertical direction. Since the first horizontal test component 31 and the second horizontal test component 32 are respectively arranged on the first vertical beam 21 and the second vertical beam 22, the operation of the height adjustment mechanism 5 can realize the adjustment of the distance between the first horizontal test component 31 and the second horizontal test component 32, and then realize the adjustment of the distance between the first lifting mechanism 33 and the second lifting mechanism 34. Since the rock sample 4 is arranged at a position between the first lifting mechanism 33 and the second lifting mechanism 34, this design is convenient for the staff to place the rock sample 4 on the one hand, and on the other hand, when the size of the rock sample 4 is too abnormal, it can also be placed between the first horizontal test component 31 and the second horizontal test component 32, so as to realize the functions of shear stress test and horizontal compression test on it, thereby expanding the scope of application of the rock mechanical properties testing device 100.

[0061] Preferably, if Figure 8 As shown, in one embodiment of the present invention, a control room 11 is provided inside the bottom plate 1, and the height adjustment power unit 51 includes a third motor 511 disposed at the side wall of the bottom plate 1, and a first bevel gear 512 disposed inside the control room 11 and connected to the third motor 511 by the rotation shaft of the third motor 511 extending into the control room through the side wall of the bottom plate 1. Through this design, the third motor 511 is used as a power source, and the power is transmitted by the first bevel gear 512 fixedly connected to the third motor 511, thereby realizing the function of outputting power of the height adjustment power unit 51.

[0062] Preferably, if Figure 8As shown, in one embodiment of the present invention, the transmission part 52 includes a first transmission assembly 521 disposed inside the control room 11, the power output part 53 includes a first power output assembly 531 partially disposed inside the control room 11 and partially extending from the upper surface of the bottom plate 1, and the first vertical beam 21 is sleeved on the first power output assembly 531. The first transmission assembly 521 is configured to transmit the power generated by the third motor 511 to the first power output assembly 531. Since the first vertical beam 21 is sleeved on the first power output assembly 531, the first vertical beam 21 can move in the longitudinal direction driven by the first power output assembly 531.

[0063] Preferably, if Figure 8 As shown, in one embodiment of the present invention, the first transmission assembly 521 includes a second bevel gear 5211, a first transmission rod 5212 and a third bevel gear 5213. The second bevel gear 5211 is vertically meshed with the first bevel gear 512, the first transmission rod 5212 is extended to the left from the second bevel gear 5211, and the third bevel gear 5213 is arranged at the left end of the first transmission rod 5212. The first power output assembly 531 includes a first power output rod 5311 and a fourth bevel gear 5312, the first power output rod 5311 is extended upward from the bottom of the control room 11, and the fourth bevel gear 5312 is sleeved on the first power output rod 5311 and is vertically meshed with the third bevel gear 5213. A first external thread that rotates clockwise or counterclockwise from bottom to top is provided on the upper side wall of the first power output rod 5311, and a first internal thread corresponding to the first external thread is provided inside the first vertical beam 21. The first vertical beam 21 realizes a threaded connection with the first power output rod 5311 by combining the first internal thread with the first external thread. Through this design, when the third motor 511 is in operation, it can sequentially drive the first bevel gear 512, the second bevel gear 5211, the first transmission rod 5212, the third bevel gear 5213, the fourth bevel gear 5312 and the first power output rod 5311 to rotate. Since the first power output rod 5311 and the first vertical beam 21 are threadedly connected, the rotation of the first power output rod 5311 enables it to be disengaged or fastened with the first vertical beam 21, thereby realizing the movement of the first vertical beam 21 in the longitudinal direction, and then realizing the up and down movement of the first horizontal test assembly 31 conveniently and quickly, which provides convenience for the subsequent placement of rock samples 4 of different sizes.

[0064] Preferably, if Figure 8As shown, in one embodiment of the present invention, the transmission part 52 includes a second transmission assembly 522 disposed inside the control room 11, the power output part 53 includes a second power output assembly 532 partially disposed inside the control room 11 and partially extending from the upper surface of the bottom plate 1, and the second vertical beam 22 is sleeved on the second power output assembly 532. The second transmission assembly 522 is configured to transmit the power generated by the third motor 511 to the second power output assembly 532. Since the second vertical beam 22 is sleeved on the second power output assembly 532, the second vertical beam 22 can move in the longitudinal direction driven by the second power output assembly 532.

[0065] Preferably, if Figure 8 As shown, in one embodiment of the present invention, the second transmission assembly 522 includes a fifth bevel gear 5221, a second transmission rod 5222 and a sixth bevel gear 5223. The fifth bevel gear 5221 is vertically meshed with the first bevel gear 512, the second transmission rod 5222 is extended to the right from the fifth bevel gear 5221, and the sixth bevel gear 5223 is arranged at the right end of the second transmission rod 5222. The second power output assembly 532 includes a second power output rod 5321 and a seventh bevel gear 5322, the second power output rod 5321 is extended upward from the bottom of the control room 11, and the seventh bevel gear 5322 is sleeved on the second power output rod 5321 and vertically meshed with the sixth bevel gear 5223. A second external thread that rotates counterclockwise or clockwise in a bottom-up direction is provided on the upper side wall of the second power output rod 5321, and a second internal thread corresponding to the second external thread is provided inside the second vertical beam 22. The second vertical beam 22 realizes a threaded connection with the second power output rod 5321 by combining the second internal thread with the second external thread. Through this design, when the third motor 511 is in operation, it can sequentially drive the first bevel gear 512, the fifth bevel gear 5221, the second transmission rod 5222, the sixth bevel gear 5223, the seventh bevel gear 5322 and the second power output rod 5321 to rotate. Since the second power output rod 5321 is threadedly connected to the second vertical beam 22, the rotation of the second power output rod 5321 enables it to be disengaged or fastened with the second vertical beam 22, thereby realizing the movement of the second vertical beam 22 in the longitudinal direction, and then realizing the up and down movement of the second horizontal test assembly 32 conveniently and quickly, which provides convenience for the subsequent placement of rock samples 4 of different sizes. It should be noted that the rotation direction of the second external thread is opposite to that of the first external thread, so as to ensure that the first vertical beam 21 and the second vertical beam 22 can move in opposite directions in the longitudinal direction.

[0066] like Figure 8As shown, in one embodiment of the present invention, mounting plates 111 are provided at the bottom and the top of the control chamber 11, a plurality of first bearings 112 are provided between the mounting plates 111, and the first transmission rod 5212 and the second transmission rod 5222 are sleeved with first bearings 112 on their outer sides. With this design, the first transmission rod 5212 and the second transmission rod 5222 can be stably arranged inside the control chamber 11, and due to the arrangement of the first bearings 112, the first transmission rod 5212 and the second transmission rod 5222 can achieve smooth rotation, thereby facilitating the smooth performance of their transmission function.

[0067] like Figure 8 As shown, in one embodiment of the present invention, a second bearing 113 is fixedly arranged on both sides of the bottom of the control chamber 11, and the bottoms of the first power output rod 5311 and the second power output rod 5321 are both sleeved on the inner ring of the second bearing 113, and are both fixedly connected to the inner ring of the second bearing 113. Through this arrangement, the first power output rod 5311 and the second power output rod 5321 can achieve stable installation and smooth rotation, thereby helping to smoothly exert their power output function.

[0068] like Figure 1 As shown, in one embodiment of the present invention, the rock mechanics property testing device 100 includes a support portion 6 disposed below the bottom plate 1 to support the bottom plate 1 off the ground. This design avoids the adverse effects of unevenness or shaking of the ground on the test results, and also provides installation space for arranging other components on the rock mechanics property testing device 100.

[0069] like Figure 1 As shown, in one embodiment of the present invention, the rock mechanics property testing device 100 includes a vertical testing part 7. The vertical testing part 7 includes a first vertical testing assembly 71 and a second vertical testing assembly 72. One end of the first vertical testing assembly 71 is set on the ground, and the other end passes through the bottom plate 1 and extends upward to a certain position below the horizontal testing part 3. The second vertical testing assembly 72 is set on a cantilever beam 211 extending horizontally to the right from the top of the first vertical beam 21, and the second vertical testing assembly 72 extends downward from the cantilever beam 211 to a certain position above the horizontal testing part 3. The first vertical testing assembly 71 and the second vertical testing assembly 72 are configured to be able to be telescopic, so as to perform a compression test in the vertical direction on the rock sample 4 between the horizontal testing parts 3. Through this design, the rock mechanics property testing device 100 can perform a compression test and a shear test on the rock sample 4 in the horizontal square, and can also perform a compression test on the rock sample 4 in the vertical direction without moving the rock sample 4, thereby realizing a more efficient one-machine-multi-purpose, which is conducive to improving the work efficiency of the staff.

[0070] Preferably, the first vertical test assembly 71 includes a sixth motor 711 disposed on the ground and a third telescopic rod 712 disposed above the sixth motor 711, and the second vertical test assembly 72 includes a seventh motor 721 disposed above and a fourth telescopic rod 722 disposed below the seventh motor 721. The horizontal test section 3 is located between the third telescopic rod 712 and the fourth telescopic rod 722, and the sixth motor 711 and the seventh motor 721 can respectively provide the third telescopic rod 712 and the fourth telescopic rod 722 with power for telescopic movement in the vertical direction. Through this design, it is possible to conveniently implement a compression test on the rock sample 4 in the vertical direction by controlling the sixth motor 711 and the seventh motor 721.

[0071] According to the rock mechanics property testing device 100 of the present invention, through the design of the horizontal testing part 3 and the coordination between the horizontal testing part 3 and other components, the function of performing both shear stress testing and horizontal compression testing on rock samples 4 of different sizes is realized. Therefore, on the one hand, the size requirements for the rock sample 4 are greatly reduced, the sample preparation burden of the staff is reduced, and the work efficiency of the rock mechanics property testing is improved. On the other hand, since the shear stress test and the horizontal compression test use the same rock sample 4, the error caused by the different samples to the test results is reduced, and the accuracy of the test structure is improved. In addition, the rock mechanics property testing device 100 can also perform compression testing on the rock sample 4 in the vertical direction without moving it, thereby realizing multiple uses of one machine more conveniently and quickly. In short, the rock mechanics property testing device 100 according to the present invention has good application prospects in the field of this technology.

[0072] In this application, the specific meanings of the terms "upper", "lower", "inner", "outer", "middle", "side" and the like when indicating directions are as follows: Figure 1 The drawing state of the rock mechanical properties testing device 100 is used as a reference.

[0073] Finally, it should be noted that although the present invention has been described in detail with reference to the preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rock mechanical properties testing device, comprising: Bottom plate (1); A longitudinal support portion (2) comprising a first vertical beam (21) and a second vertical beam (22) arranged relatively above the bottom plate (1); The horizontal testing part (3) comprises a first horizontal testing component (31) and a second horizontal testing component (32) which are respectively arranged on the first vertical beam (21) and the second vertical beam (22) and are both configured to have a telescopic function in the horizontal direction; the first horizontal testing component (31) is arranged to be higher than the second horizontal testing component (32); a first lifting mechanism (33) is arranged at the end of the first horizontal testing component (31); and a second lifting mechanism (34) is arranged at the end of the second horizontal testing component (32); The first lifting mechanism (33) and the second lifting mechanism (34) are configured to be able to change the contact form between the first lifting mechanism (33) and the second lifting mechanism (34) and the rock sample (4) through lifting and adjusting, so that the horizontal testing part (3) can be used to perform a shear stress test and a horizontal compression test on the rock sample (4).

2. The rock mechanical properties testing device according to claim 1, characterized in that: The first lifting mechanism (33) comprises a first flat plate (331), a first lifting plate (332) arranged at a free end of the first flat plate (331) and extending perpendicularly to the first flat plate (331), and a first lifting power unit (333) for driving the first lifting plate (332) to move up and down. The second lifting mechanism (34) comprises a second flat plate (341), a second lifting plate (342) arranged at a free end of the second flat plate (341) and extending perpendicularly to the second flat plate (341), and a second lifting power unit (343) for driving the second lifting plate (342) to move up and down. The rock sample (4) is arranged between the first flat plate (331), the second flat plate (341), the first lifting plate (332) and the second lifting plate (342). When the first lifting plate (332) and the second lifting plate (342) are not in contact with the second flat plate (341) and the first flat plate (331), the rock mechanics property testing device can perform a shear stress test on the rock sample (4); and when the first lifting plate (332) and the second lifting plate (342) are in contact with the second flat plate (341) and the first flat plate (331), respectively, the rock mechanics property testing device can perform a horizontal compression test on the rock sample (4).

3. The rock mechanical properties testing device according to claim 2, characterized in that: A first sliding groove (3311) which passes through from top to bottom and a first rotating cavity (3312) which is connected to the first sliding groove (3311) are provided at the free end of the first flat plate (331); the first lifting plate (332) is vertically penetrated in the first sliding groove (3311); the first lifting power unit (333) is configured to be at least partially disposed inside the first rotating cavity (3312) and in contact with the first lifting plate (332) so as to drive the first lifting plate (332) to perform lifting operations in the longitudinal direction.

4. The rock mechanical properties testing device according to claim 3, characterized in that: The first lifting mechanism (33) comprises a first U-shaped plate (334), and a second slide groove (3321) with an upper opening and a third slide groove (3322) with a side opening are arranged on the first lifting plate (332), the third slide groove (3322) is arranged above the second slide groove (3321), and the second slide groove (3321) is connected to the third slide groove (3322), one end of the first U-shaped plate (334) is located inside the second slide groove (3321), and the other end is fixedly connected to the top surface of the first plate (331).

5. The rock mechanical properties testing device according to claim 4, characterized in that: The first lifting power unit (333) includes a first spur gear (3331) located inside the first rotating chamber (3312), and a first motor (3332) connected to the first spur gear (3331) via a first output end, and a first tooth surface (3323) meshing with the first spur gear (3331) is provided on the side of the first lifting plate (332) in contact with the first spur gear (3331).

6. The rock mechanical properties testing device according to claim 2, characterized in that: A fourth slide groove (3411) which passes through from top to bottom and a second rotating chamber (3412) which is connected to the fourth slide groove (3411) are provided at the free end of the second flat plate (341). The second lifting plate (342) is vertically penetrated in the fourth slide groove (3411). The second lifting power unit (343) is configured to be at least partially disposed inside the second rotating chamber (3412) and in contact with the second lifting plate (342) so as to drive the second lifting plate (342) to perform lifting operations in the longitudinal direction.

7. The rock mechanical properties testing device according to claim 6, characterized in that: The second lifting mechanism (34) includes a second U-shaped plate (344), on which a fifth slide groove (3421) with an opening at the lower end and a sixth slide groove (3422) with an opening at the side are arranged, the sixth slide groove (3422) is arranged below the fifth slide groove (3421), and the fifth slide groove (3421) is connected to the sixth slide groove (3422), one end of the second U-shaped plate (344) is located inside the fifth slide groove (3421), and the other end is fixedly connected to the bottom surface of the second flat plate (341).

8. The rock mechanical properties testing device according to claim 7, characterized in that: The second lifting power unit (343) includes a second spur gear (3431) located inside the second rotating chamber (3412), and a second motor (3432) connected to the second spur gear (3431) via a second output end, and a second tooth surface (3423) meshing with the second spur gear (3431) is provided on the side of the second lifting plate (342) in contact with the second spur gear (3431).

9. The rock mechanical properties testing device according to any one of claims 1 to 8, characterized in that: The invention comprises a height adjustment mechanism (5), wherein the height adjustment mechanism (5) comprises a height adjustment power unit (51), a transmission unit (52) arranged in contact with the height adjustment power unit (51), and a power output unit (53) arranged in contact with the transmission unit (52); the first vertical beam (21) and the second vertical beam (22) are sleeved on the power output unit (53); and the height adjustment mechanism (5) is configured to be able to drive the first vertical beam (21) and the second vertical beam (22) to move in opposite directions in the vertical direction within the same time period through the interlocking operation of the height adjustment power unit (51), the transmission unit (52) and the power output unit (53).

10. The rock mechanical properties testing device according to claim 9, characterized in that: A control room (11) is provided inside the base plate (1), and the height adjustment power unit (51) comprises a third motor (511) arranged on the side wall of the base plate (1), and a first bevel gear (512) which is arranged inside the control room (11) and connected to the third motor (511) by a rotating shaft of the third motor (511) which extends into the control room (11) through the side wall of the base plate (1).

11. The rock mechanical properties testing device according to claim 10, characterized in that: The transmission part (52) includes a first transmission assembly (521) arranged inside the control room (11); the power output part (53) includes a first power output assembly (531) partially arranged inside the control room (11) and partially extending out of the upper surface of the base plate (1); and the first vertical beam (21) is sleeved on the first power output assembly (531).

12. The rock mechanical properties testing device according to claim 11, characterized in that: The first transmission assembly (521) comprises a second bevel gear (5211) vertically meshed with the first bevel gear (512), a first transmission rod (5212) extending to the left from the second bevel gear (5211), and a third bevel gear (5213) arranged at the left end of the first transmission rod (5212); the first power output assembly (531) comprises a first power output rod (5311) extending upward from the bottom of the control room (11), and a fourth bevel gear (5312) sleeved on the first power output rod (5311) and vertically meshed with the third bevel gear (5213); a first external thread rotating clockwise / counterclockwise in a bottom-up direction is arranged on the upper side wall of the first power output rod (5311); and the first vertical beam (21) is connected to the first power output rod (5311) via a first internal thread arranged therein and corresponding to the first external thread.

13. The rock mechanical properties testing device according to claim 12, characterized in that: The transmission part (52) includes a second transmission assembly (522) arranged inside the control room (11); the power output part (53) includes a second power output assembly (532) partially arranged inside the control room (11) and partially extending out of the upper surface of the base plate (1); and the second vertical beam (22) is sleeved on the second power output assembly (532).

14. The rock mechanical properties testing device according to claim 13, characterized in that: The second transmission assembly (522) comprises a fifth bevel gear (5221) vertically meshed with the first bevel gear (512), a second transmission rod (5222) extending to the right from the fifth bevel gear (5221), and a sixth bevel gear (5223) arranged at the right end of the second transmission rod (5222); the second power output assembly (532) comprises a second power output rod (5321) extending upward from the bottom of the control chamber (11), and a seventh bevel gear (5322) sleeved on the second power output rod (5321) and vertically meshed with the sixth bevel gear (5223); a second external thread rotating in a counter / clockwise / clockwise direction from bottom to top is arranged on the upper side wall of the second power output rod (5321); and the second vertical beam (22) is connected to the second power output rod (5321) via a second internal thread arranged therein and corresponding to the second external thread.

15. The rock mechanical properties testing device according to any one of claims 1 to 8, characterized in that: It comprises a support portion (6) arranged below the base plate (1) to support the base plate (1) off the ground.

16. The rock mechanical properties testing device according to claim 15, characterized in that: The invention comprises a vertical test part (7), wherein the vertical test part (7) comprises a first vertical test component (71) having one end arranged on the ground and the other end penetrating the bottom plate (1) and extending upward to a certain position below the horizontal test part (3); and a second vertical test component (72) arranged on a cantilever beam (111) extending horizontally to the right from the top of the first vertical beam (11) and extending downward to a certain position above the horizontal test part (3). The first vertical test component (71) and the second vertical test component (72) are configured to be capable of extension and contraction, so as to perform a compression test in a vertical direction on the rock sample (4) located between the horizontal test parts (3).

Images