Tester for testing rock wave velocities under different pressures

Abstract

The utility model relates to the technical field of geotechnical engineering testing, in particular to a tester for testing rock wave velocity under different pressures, which comprises a fixing frame, a pressure applying device, a wave velocity measuring component, a cleaning component and a linkage component, the pressure applying device is arranged at the top end of the interior of the fixing frame, and a supporting plate is arranged at the bottom end of the interior of the fixing frame. The wave velocity measuring assembly comprises a transmitting probe and a receiving probe, the transmitting probe is arranged on the pressure applying device, the receiving probe is arranged on the supporting plate, and the transmitting probe and the receiving probe are correspondingly arranged; the sweeping assembly is movably arranged on the supporting plate and connected with the pressure applying device through a linkage assembly. The pressure applying device is arranged to apply different pressures to the rock to be tested, the wave velocities of the rock under different pressures are measured through the wave velocity measuring assembly, and the influence of the pressure on the rock on the wave velocities is considered, so that the test result is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering testing technology, specifically to a testing instrument for testing rock wave velocity under different pressures. Background Technology

[0002] Rock wave velocity testing is a method for evaluating the physical properties of rocks by measuring the speed at which sound waves propagate within them. The propagation speed of sound waves in rocks is influenced by the internal structure and properties of the rock, resulting in different propagation speeds. By measuring and analyzing the sound wave velocity, information about the internal structure and properties of the rock can be obtained.

[0003] Patent CN220381055U discloses a two-dimensional wave velocity testing device for reducing noise interference in rocks, including a shell, a wave velocity testing platform at the bottom of the shell, and a wave velocity testing component on the wave velocity testing platform; a rock core sample is placed on the wave velocity testing platform; the wave velocity testing component includes four acoustic probes; the inner wall of the shell is provided with a fixing device for fixing the acoustic probes, and the fixing device and the acoustic probes are connected by springs; the wave velocity testing platform includes a fixed base, a lifting bracket and an arc-shaped platform connected in sequence from bottom to top; the fixed base is placed at the bottom of the shell, and the rock core sample is placed on the arc-shaped platform; the fixed base is provided with an interface, and the fixed base and the bottom of the shell are provided with through holes; the transmission line of the acoustic probe is connected to the inlet end of the interface, and the outlet end of the interface is then connected to an external device through an external transmission line.

[0004] The existing device measures wave velocity by using two sets of acoustic probes to measure the wave velocity of the core sample. Because the burial depth of the rock is different, the pressure at the location is also different. The deeper the burial, the greater the pressure on the rock, and the greater the corresponding wave velocity. However, the device can only detect the wave velocity value of the core sample under no pressure, and cannot study the relationship between pressure and wave velocity.

[0005] Based on the above, this utility model provides a testing instrument for testing rock wave velocity under different pressures, so as to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this invention is to provide a testing instrument for testing rock wave velocity under different pressures. The specific technical solution is as follows:

[0007] A testing instrument for testing rock wave velocity under different pressures includes a fixing frame, a pressure application device, a wave velocity measurement component, a cleaning component, and a linkage component;

[0008] The pressure-applying device is located at the top of the inside of the fixed frame, and a support plate is provided at the bottom of the inside of the fixed frame.

[0009] The wave velocity measuring assembly comprises a transmitting probe and a receiving probe, the transmitting probe is arranged on the pressing device, the receiving probe is arranged on the support plate, and the transmitting probe and the receiving probe are arranged correspondingly.

[0010] The cleaning assembly is movably arranged on the support plate, and the cleaning assembly is connected with the pressing device through the linkage assembly.

[0011] Further, the pressing device comprises a pressure cylinder and a lower pressing plate, the fixed end of the pressure cylinder is fixedly arranged at the inner top end of the fixed frame, the telescopic end of the pressure cylinder is connected with the lower pressing plate, and the transmitting probe is arranged on the lower pressing plate.

[0012] Further, the cleaning assembly comprises a cleaning plate and a collection box, both ends of the cleaning plate are slidingly installed in the sliding grooves on both sides of the inner side of the fixed frame.

[0013] The collection box is arranged on the fixed frame along the sliding direction of the cleaning plate, and is used for collecting the broken rocks swept off by the cleaning plate.

[0014] Further, the collection box is slidingly connected to the fixed frame, the fixed frame is provided with a sliding rail, the sidewall of the collection box is provided with a sliding block, and the sliding block is matched with the sliding rail; and the bottom of the collection box is provided with a roller.

[0015] Further, the linkage assembly comprises a screw rod, a gear, a toothed plate, a first connecting plate and a second connecting plate.

[0016] The screw rod is arranged in the sliding groove in the inner side of the fixed frame, and one end of the screw rod is threadedly connected with the cleaning plate.

[0017] The gear is fixedly connected to the end of the screw rod.

[0018] The toothed plate is slidingly installed on the sidewall of the fixed frame, and the gear is meshingly connected with the toothed plate.

[0019] The first connecting plate is connected with the lower pressing plate, and the toothed plate is connected with the first connecting plate through the second connecting plate.

[0020] Further, one end of the second connecting plate is connected with the top end of the toothed plate.

[0021] Further, the inner sidewall of the fixed frame is provided with a first communication groove and a second communication groove in the vertical direction, and the first communication groove and the second communication groove are in communication with each other.

[0022] The first connecting plate is slidingly connected with the first communication groove, and the second connecting plate is slidingly arranged in the second communication groove.

[0023] Further, a limiting slot is formed on the side wall of the fixing frame, a limiting block is slidably installed in the limiting slot, and the limiting block is connected with the bottom end of the tooth plate.

[0024] Further, the wave velocity measuring assembly further comprises an oscilloscope installed on the outer side wall of the fixing frame.

[0025] The technical scheme of the utility model has the following beneficial effects:

[0026] (1) The utility model provides a tester for testing rock wave velocity under different pressure, including fixed frame, pressure applying device, wave velocity measuring assembly, cleaning assembly and linkage assembly, the pressure applying device is arranged at the inside top end of fixed frame, the inside bottom end of fixed frame is provided with supporting plate, the wave velocity measuring assembly includes transmitting probe and receiving probe, the transmitting probe is arranged on pressure applying device, the receiving probe is arranged on supporting plate, the transmitting probe is correspondingly arranged with receiving probe, the cleaning assembly is movably arranged on supporting plate, the cleaning assembly is connected with pressure applying device through linkage assembly, the utility model discloses through setting pressure applying device and applying different pressure to the rock to be measured, the wave velocity of rock under different pressure is measured through wave velocity measuring assembly, the influence of the pressure on the wave velocity of rock is considered, so that the test result is more accurate.

[0027] (2) In the utility model, the cleaning assembly is also arranged, and the automatic cleaning of the broken rock is realized through the cleaning assembly, so that the next detection is facilitated.

[0028] (3) In the utility model, the cleaning assembly is connected with the pressure applying device through the linkage assembly, so that the cleaning assembly can move with the movement of the lower pressing plate, when the rock velocity detection is completed and the pressure applying device returns to the initial state, the cleaning of the broken rock is simultaneously carried out, and the detection efficiency is improved.

[0029] (4) In the utility model, the cleaning assembly comprises a cleaning plate and a collecting box, and the cleaning and collection of the broken rock are realized through the cooperation of the cleaning plate and the collecting box.

[0030] (5) In the utility model, the collecting box is slidably arranged on the fixed frame, the fixed frame is provided with a sliding rail, the side wall of the collecting box is provided with a sliding block, and the sliding block is matched with the sliding rail; and the bottom of the collecting box is provided with a roller, so that the broken rock in the collecting box is conveniently cleaned.

[0031] (6) In the utility model, a limiting slot is formed on the side wall of the fixing frame, a limiting block is slidably installed in the limiting slot, and the limiting block is connected with the bottom end of the tooth plate. Through the limiting slot and the limiting block, the movement of the tooth plate is more stable.

[0032] In addition to the above described objects, features and advantages, the present application has other objects, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings are presented by way of example or for purpose of illustration, and not as limitations of the present application. In the drawings:

[0034] Figure 1 is the overall structure schematic diagram of the tester for testing rock wave speed under different pressures in the embodiment of the present application;

[0035] Figure 2 is the partial structure schematic diagram of the tester for testing rock wave speed under different pressures in the embodiment of the present application;

[0036] Figure 3 is the local sectional view structure schematic diagram of the tester for testing rock wave speed under different pressures in the embodiment of the present application;

[0037] Figure 4 is the Figure 3 enlarged schematic diagram of A in the figure;

[0038] Figure 5 is the Figure 3 enlarged schematic diagram of B in the figure;

[0039] Figure 6 is the state schematic diagram of the pressure applying device when applying pressure to the rock in the embodiment of the present application;

[0040] Figure 7 is the Figure 6 enlarged schematic diagram of C in the figure;

[0041] 1, fixed frame, 1.1, first communication groove, 1.2, second communication groove, 1.3, limiting groove, 2, pressure applying device, 2.1, pressure cylinder, 2.2, lower pressing plate, 3, wave speed measuring assembly, 3.1, transmitting probe, 3.2, receiving probe, 3.3, oscilloscope, 4, cleaning assembly, 4.1, cleaning plate, 4.2, collection box, 5, linkage assembly, 5.1, screw rod, 5.2, gear, 5.3, toothed plate, 5.4, first connecting plate, 5.5, second connecting plate, 6, supporting plate, 7, limiting block, 8, laser range finder. DETAILED DESCRIPTION

[0042] The embodiments of the present application will be described in detail below with reference to the drawings, but the present application can be implemented in various different ways as defined and covered.

[0043] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0044] In addition, the terms "first", "second", and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0045] Embodiment

[0046] Referring to Figures 1-3 , the utility model provides a tester for testing rock wave velocity under different pressure, including fixed frame 1, pressure device 2, wave velocity measurement subassembly 3, cleaning subassembly 4 and linkage assembly 5, pressure device 2 is arranged in the inside top end of fixed frame 1, pressure device 2 includes pressure cylinder 2.1 and lower pressing plate 2.2, the fixed end of pressure cylinder 2.1 is fixedly arranged in the inside top end of fixed frame 1, the telescopic end of pressure cylinder 2.1 is connected with lower pressing plate 2.2, the inside bottom end of fixed frame 1 is provided with support plate 6.

[0047] Wave velocity measurement subassembly 3 includes transmitting probe 3.1 and receiving probe 3.2, transmitting probe 3.1 is inlaid in the middle position of the lower end surface of lower pressing plate 2.2, receiving probe 3.2 is inlaid on the upper end surface of support plate 6, transmitting probe 3.1 and receiving probe 3.2 are correspondingly arranged.

[0048] In this embodiment, referring to Figure 2 , the lower end surface edge of lower pressing plate 2.2 is fixedly installed with laser range finder 8, laser range finder 8 can measure the distance between transmitting probe 3.1 and receiving probe 3.2 in real time in the process that lower pressing plate 2.2 presses down rock.

[0049] Referring to Figures 1-3 , in this embodiment, cleaning subassembly 4 is movably arranged on support plate 6, cleaning subassembly 4 includes cleaning plate 4.1 and collection box 4.2, both ends of cleaning plate 4.1 are slidably installed in the sliding slot on both sides inside fixed frame 1, in this embodiment, referring to Figure 2One of the sliding grooves (left side inside the fixed frame 1) is fixedly provided with a sliding rod, the first end of the cleaning plate 4.1 is in sliding connection with the sliding rod, and the second end of the cleaning plate 4.1 is connected with the pressing device 2 through the linkage assembly 5. The cleaning plate 4.1 moves on the upper end surface of the supporting plate 6, and then the broken rocks on the upper end surface of the supporting plate 6 are cleaned.

[0050] Referring to Figures 1-3 The collecting box 4.2 is arranged on the fixed frame 1 along the sliding direction of the cleaning plate 4.1, and is used for collecting the broken rocks swept off by the cleaning plate 4.1. Preferably, in the embodiment, the collecting box 4.2 is provided with two, which are respectively located on the front and rear sides of the fixed frame 1.

[0051] In the embodiment, referring to Figure 3 The collecting box 4.2 is in limiting sliding connection with the fixed frame 1, the fixed frame 1 is provided with a sliding rail, the sidewall of the collecting box 4.2 is provided with a sliding block, and the sliding block is matched with the sliding rail. The bottom of the collecting box 4.2 is provided with a rolling wheel. The rocks are fallen into the inside of the collecting box 4.2 through the cleaning and pushing of the cleaning plate 4.1, and the collecting box 4.2 can slide out through the sliding rail after being full, and then the broken rocks are conveniently transferred.

[0052] In the embodiment, referring to Figures 1-5 The second end of the cleaning plate 4.1 is connected with the pressing device 2 through the linkage assembly 5, the linkage assembly 5 includes a screw rod 5.1, a gear 5.2, a toothed plate 5.3, a first connecting plate 5.4 and a second connecting plate 5.5. The screw rod 5.1 is arranged in the sliding groove on the right side inside the fixed frame 1, and is in threaded connection with the second end of the cleaning plate 4.1. The gear 5.2 is fixedly connected with the end of the screw rod 5.1. The toothed plate 5.3 is in sliding connection with the sidewall of the fixed frame 1, and the gear 5.2 is in meshing connection with the toothed plate 5.3.

[0053] It should be noted that the teeth of the toothed plate 5.3 are partially arranged. When the cleaning plate 4.1 moves from one side of the supporting plate 6 to the other side, the teeth on the toothed plate 5.3 are located below the gear 5.2, so when the lower pressing plate 2.2 continues to move downward, the toothed plate 5.3 is not in meshing connection with the gear 5.2, and at this time the gear 5.2 does not rotate, and the cleaning plate 4.1 remains stationary.

[0054] The first connecting plate 5.4 is connected with the lower pressing plate 2.2, and the toothed plate 5.3 is connected with the first connecting plate 5.4 through the second connecting plate 5.5.

[0055] Specifically, referring to Figures 5-7The inner side wall of the fixed frame 1 is provided with a first communication groove 1.1 and a second communication groove 1.2 in the vertical direction, the first communication groove 1.1 and the second communication groove 1.2 are communicated with each other; the first connecting plate 5.4 is slidably connected with the first communication groove 1.1, and the second connecting plate 5.5 is slidably arranged in the second communication groove 1.2. One end of the second connecting plate 5.5 is fixedly connected with the first connecting plate 5.4, and the other end of the second connecting plate 5.5 is fixedly connected with the top end of the toothed plate 5.3.

[0056] In order to make the movement of the toothed plate 5.3 more stable, a limiting groove 1.3 is formed in the side wall of the fixed frame 1, and a limiting block 7 is slidably arranged in the limiting groove 1.3, and the limiting block 7 is connected with the bottom end of the toothed plate 5.3.

[0057] In the embodiment, the wave velocity measuring assembly 3 further comprises an oscilloscope 3.3, the oscilloscope 3.3 is arranged on the outer side wall of the fixed frame 1, and the transmitting probe 3.1 and the receiving probe 3.2 are electrically connected with the oscilloscope 3.3. The transmitting probe 3.1, the receiving probe 3.2 and the oscilloscope 3.3 are prior art.

[0058] The test is carried out by using the tester provided by the utility model, and the test comprises the following steps:

[0059] In the initial state, referring to Figure 3 and Figure 4 , the gear 5.2 is engaged with the bottom of the toothed plate 5.3, and the cleaning plate 4.1 is located on one side of the supporting plate 6.

[0060] In use, the pressure cylinder 2.1 is started, so that the telescopic end of the pressure cylinder 2.1 drives the lower pressing plate 2.2 to move downward, and in turn drives the toothed plate 5.3 to move downward, the toothed plate 5.3 is engaged with the gear 5.2, so that the gear 5.2 rotates, the rotation of the gear 5.2 drives the screw rod 5.1 to rotate, and in turn makes the cleaning plate 4.1 move on the upper end face of the supporting plate 6.

[0061] As shown in Figure 6 , the cleaning plate 4.1 moves to the other side of the supporting plate 6, at this time the pressure cylinder 2.1 is stopped, and the rock is placed on the upper end face of the supporting plate 6, directly below the lower pressing plate 2.2.

[0062] The pressure cylinder 2.1 is started, and the telescopic end of the pressure cylinder 2.1 drives the lower pressing plate 2.2 to move downward, referring to Figure 7 , at this time, since the teeth of the toothed plate 5.3 are locally arranged, and the teeth on the toothed plate 5.3 are located below the gear 5.2 at this time, when the lower pressing plate 2.2 drives the toothed plate 5.3 to move downward through the first connecting plate 5.4 and the second connecting plate 5.5, the toothed plate 5.3 is not engaged with the gear 5.2, at this time the gear 5.2 will not rotate, that is, the cleaning plate 4.1 is in a stationary state.

[0063] The downward movement of the pressing plate 2.2 exerts pressure on the rock, starts the emission probe 3.1 and the receiving probe 3.2, detects the time of the longitudinal wave through the rock in real time through the emission probe 3.1 and the receiving probe 3.2, and measures the distance between the emission probe 3.1 and the receiving probe 3.2 in real time during the downward movement of the pressing plate 2.2 on the rock by the laser range finder 8, and then calculates the wave velocity value; the wave velocity value of the rock under different pressure conditions is obtained by continuously increasing the pressure, and is displayed through the oscilloscope 3.3;

[0064] When the rock is broken by continuously increasing the pressure, the pressure cylinder 2.1 stops pressing, and the telescopic end of the pressure cylinder 2.1 is retracted to drive the upward movement of the pressing plate 2.2, drives the upward movement of the toothed plate 5.3 through the first connecting plate 5.4 and the second connecting plate 5.5, the toothed plate 5.3 is engaged with the gear 5.2 to drive the rotation of the gear 5.2, the rotation of the gear 5.2 drives the rotation of the screw rod 5.1, and then the cleaning plate 4.1 moves on the upper end surface of the supporting plate 6, and then the broken rock on the upper end surface of the supporting plate 6 is cleaned to the collecting box 4.2.

[0065] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tester for testing wave velocity of rock at different pressures, characterized by, It include fixed frame (1), pressure device (2), wave velocity measurement assembly (3), cleaning assembly (4) and linkage assembly (5); The pressure device (2) is arranged at the inner top end of the fixed frame (1), and the inner bottom end of the fixed frame (1) is provided with a support plate (6); The wave velocity measurement assembly (3) includes a transmitting probe (3.1) and a receiving probe (3.2), the transmitting probe (3.1) is arranged on the pressure device (2), the receiving probe (3.2) is arranged on the support plate (6), and the transmitting probe (3.1) and the receiving probe (3.2) are correspondingly arranged; The cleaning assembly (4) is movably arranged on the support plate (6), and the cleaning assembly (4) is connected with the pressure device (2) through the linkage assembly (5).

2. The tester for testing wave velocity of rock under different pressure according to claim 1, wherein, The pressure device (2) includes a pressure cylinder (2.1) and a lower pressing plate (2.2), the fixed end of the pressure cylinder (2.1) is fixedly arranged at the inner top end of the fixed frame (1), and the telescopic end of the pressure cylinder (2.1) is connected with the lower pressing plate (2.2), and the transmitting probe (3.1) is arranged on the lower pressing plate (2.2).

3. The tester for testing wave velocity of rock under different pressure according to claim 2, characterized in that, The cleaning assembly (4) includes a cleaning plate (4.1) and a collecting box (4.2), both ends of the cleaning plate (4.1) are slidably installed in the sliding grooves on both sides of the fixed frame (1) inside; The collecting box (4.2) is arranged on the fixed frame (1) along the sliding direction of the cleaning plate (4.1), and is used for collecting the broken rocks swept off by the cleaning plate (4.1).

4. The tester for testing wave velocity of rock under different pressure according to claim 3, characterized in that, The collecting box (4.2) is slidably connected to the fixed frame (1), the fixed frame (1) is provided with a sliding rail, the side wall of the collecting box (4.2) is provided with a sliding block, and the sliding block is matched with the sliding rail; and the bottom of the collecting box (4.2) is provided with a plurality of rollers.

5. The tester for testing wave velocity of rock under different pressure according to claim 3, characterized in that, The linkage assembly (5) includes a screw rod (5.1), a gear (5.2), a toothed plate (5.3), a first connecting plate (5.4) and a second connecting plate (5.5); The screw rod (5.1) is arranged in the sliding groove in the fixed frame (1), and one end of the screw rod (5.1) is threadedly connected with the cleaning plate (4.1); The gear (5.2) is fixedly connected to the end of the screw rod (5.1); The toothed plate (5.3) is slidably installed on the side wall of the fixed frame (1), and the gear (5.2) is meshedly connected with the toothed plate (5.3); The first connecting plate (5.4) is connected with the lower pressing plate (2.2), and the toothed plate (5.3) is connected with the first connecting plate (5.4) through the second connecting plate (5.5).

6. The tester for testing wave velocity of rock under different pressure according to claim 5, characterized in that, One end of the second connecting plate (5.5) is connected with the top end of the toothed plate (5.3).

7. The tester for testing wave velocity of rock under different pressure according to claim 5, characterized in that, The inner side wall of the fixed frame (1) is provided with a first communication groove (1.1) and a second communication groove (1.2) in the vertical direction, and the first communication groove (1.1) and the second communication groove (1.2) are communicated with each other; The first connecting plate (5.4) is slidably connected with the first communication groove (1.1), and the second connecting plate (5.5) is slidably arranged in the second communication groove (1.2).

8. The tester for testing wave velocity of rock under different pressure according to claim 5, wherein, The side wall of the fixing frame (1) is provided with a limiting groove (1.3), and a limiting block (7) is slidably installed in the limiting groove (1.3), and the limiting block (7) is connected with the bottom end of the toothed plate (5.3).

9. The tester for testing wave velocity of rock under different pressure according to any one of claims 1-8, characterized in that, The wave velocity measuring assembly (3) further comprises an oscilloscope (3.3) installed on the outer side wall of the fixing frame (1).

Images