CN218272111U - Probe switching device suitable for rock sound wave experiment - Google Patents

Abstract

The utility model relates to a probe switching device suitable for rock sound wave experiment, which comprises a base and two turntables, wherein the two turntables are installed on the base in a face-to-face manner, the axial distance between the two turntables can be adjusted, and the axial direction is parallel to the horizontal direction; the rotary disc comprises a rotatable disc, the rotatable disc can rotate in a vertical plane relative to the base by taking the center of the rotatable disc as a circle center, and a plurality of probe slots are arranged on the rotatable disc at intervals around the center of the rotatable disc. A wiring hole is arranged beside each probe slot, the wiring hole is independent of the probe slot and is arranged on the rotatable disc, and a side hole is formed in the side wall of the bottom of the probe slot and is communicated with the wiring hole. The rotatable disc can be simultaneously provided with a plurality of probes, the switching of different probes can be realized by rotating the rotatable disc, the probes do not need to be taken down from the rotatable disc during switching, the operation is convenient and quick, and the experimental efficiency can be improved; because the probe does not need to be frequently assembled and disassembled, the probability of probe damage caused by frequent assembling and disassembling of the probe can be reduced.

Description

A probe switching device suitable for rock acoustic wave experiments

technical field

The utility model relates to the technical field of rock acoustic wave experiment devices, in particular to a probe switching device suitable for rock acoustic wave experiments.

Background technique

The rock acoustic wave experiment is based on the mechanical properties of the rock to study the propagation law of the sound wave in the rock mass. The experiment is carried out on the acoustic rock parameter measurement instrument. During the experiment, the transmitter probe and the receiver probe need to be connected to the pulse transmitter and the multi-frequency sound wave measurement system respectively, the rock core is placed between the two probes, and the trigger pulse signal is output to the transducer to cause mechanical vibration corresponding to the frequency of the probe. Vibration, then acquire the waveform to adjust the gain and read the data. Experimental instruments are usually equipped with probes of different specifications used to measure sound waves of different frequencies, and their diameters and lengths are different. Therefore, each time the probe is replaced, an additional holder with the corresponding diameter and length needs to be installed, and the connecting wire must be replaced again, which seriously affects Experimental efficiency, but also easily lead to probe damage.

Utility model content

In order to solve the above technical problems, the present application provides a probe switching device suitable for rock acoustic wave experiments.

The application is realized through the following technical solutions:

A probe switching device suitable for rock sound wave experiments, including a base and two turntables, the two turntables are installed on the base face to face, the axial distance between the two turntables can be adjusted, and the axial direction is parallel to the horizontal direction ; The turntable includes a rotatable disk, the rotatable disk can rotate in a vertical plane relative to the base with its center as the center of a circle, and a plurality of probe slots are arranged at intervals around its center on the rotatable disk; the rotatable disk is connected or The handle is not attached.

Optionally, one of the turntables is linearly slidably connected to the base in the axial direction, and a pressure sensor for detecting axial force is provided between the other turntable and the base.

Optionally, an axial force stretching frame is slidably installed above the base, and a turntable linearly slidably connected to the base is installed on the axial force stretching frame.

In particular, the base is provided with at least two guide holes along a straight line, the axial force stretching frame includes a guide rod, and the guide rod is installed in at least two guide holes of the base.

In particular, the turntable further includes a casing connected to the base, and the center of the rotatable disk is rotatably connected to the casing through a horizontally arranged bearing.

Optionally, an axial large circular through hole is opened on the rotatable disk, and a cylinder is installed at the bottom of the large circular through hole to form the probe slot, and the cylinder is threaded or clipped to the rotatable disk.

In particular, each probe slot is equipped with a wiring hole, which is set on the rotatable disk independently of the probe slot, and the side hole at the bottom side wall of the probe slot is connected with the wiring hole.

Compared with the prior art, the present application has the following beneficial effects:

1. Multiple probes can be installed on the rotatable disk of this application at the same time, and different probes can be switched by rotating the rotatable disk. When switching, it is not necessary to remove the probe from the rotatable disk. The operation is convenient and fast, and the experimental efficiency can be improved. ;

2. Since the probe does not need to be loaded and unloaded frequently, the probability of probe damage caused by frequent loading and unloading of the probe can be reduced;

3. When in use, the device can be customized according to different sizes of probes, which is highly expandable and conducive to popularization and application.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the present application, constitute a part of the application, and do not limit the embodiments of the present utility model.

Fig. 1 is the front view of the probe switching device applicable to rock acoustic wave experiments in the embodiment;

Fig. 2 is the top view of the probe switching device applicable to rock acoustic wave experiments in the embodiment;

Fig. 3 is the front view of turntable in the embodiment;

Fig. 4 is a side view of the turntable in the embodiment;

Fig. 5 is a schematic diagram of the installation of the pressure sensor in the embodiment.

detailed description

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. The components of embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present utility model, all other implementation manners obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts in each embodiment, refer to each other, that is, Can.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or positional relationship shown in the drawings, or is The orientation or positional relationship that is usually placed when the utility model product is used, or the orientation or positional relationship that is commonly understood by those skilled in the art, is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In the description of the present utility model, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, and can be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

As shown in FIGS. 1-3 , a probe switching device suitable for rock acoustic wave experiments disclosed in this embodiment includes a base 1 and two turntables 3 . The two turntables 3 are relatively installed on the base 1 and the distance between them can be adjusted.

There are many ways to adjust the distance between the two turntables 3, including but not limited to the following two: first, one of the turntables 3 is connected to the base 1 in a horizontal and straight line, and the other turntable 3 cannot move horizontally and straightly relative to the base 1; In the second type, both turntables 3 are horizontally and linearly slidably connected to the base 1 .

In a possible design, an axial force stretching frame 2 is slidably installed above the base 1 , and the turntable 3 is installed on the axial force stretching frame 2 , so as to realize the sliding connection between the turntable 3 and the base 1 .

In a possible design, the base 1 is provided with at least two guide holes along a straight line, and the axial force stretching frame 2 includes guide rods, which are installed in at least two guide holes of the base 1, so as to achieve axial The sliding connection between force stretching frame 2 and base 1.

In a possible design, as shown in Figure 4, the turntable 3 includes a casing 31 and a rotatable disk 32, the casing 31 is fixedly connected to the axial force stretching frame 2, and the turntable can be driven by the axial force stretching frame 2 3 Move left and right to realize the installation and removal of the core. The center of the rotatable disk 32 is rotatably connected to the housing 31 through the horizontally arranged bearing 6, and a plurality of probe slots 33 for horizontally inserting the probe 7 are arranged at intervals around the center of the rotatable disk 32, and different frequency specifications and sizes can be used. The probe 7 is put into the turntable 3 at the same time.

In a possible design, the inside of the probe slot 33 is designed as a tapered bottom according to the length of the corresponding probe 7 to limit the fixed probe 7 .

Because different probes 7 have different lengths, in order to adapt to probes 7 of different specifications, in a possible design, a large round through hole is opened in the rotatable disk 32, and round holes of different lengths can be installed at the bottom of the large round through hole according to different probes 7. The cylinder 10 is used to realize the positioning of the probe 7 , and the cylinder 10 is screwed or clipped to the rotatable disk 32 . Specifically, the top surface of the cylinder 10 is a concave conical surface, and side holes 35 are opened at corresponding positions on the cylinder wall of the cylinder 10 and the hole wall of the large circular hole.

In a possible design, a circular groove is directly processed on the rotatable disk 32 to form the probe slot 33 .

In a possible design, as shown in Figure 4, each probe slot 33 is equipped with a wiring hole 34, and the wiring hole 34 is arranged on the rotatable disk 32 independently of the probe slot 33, and the probe slot 33 A side hole 35 is opened on the side wall of the groove bottom to communicate with the wiring hole 34 . The connecting wire 8 can pass through the side hole 35 reserved at the bottom of the probe slot 33 into the wiring hole 34, and then pass through the wiring hole 34 from the surface of the rotatable disk 32. The wiring hole 34 is independent of the probe slot 33, There is a thin layer between the wiring hole 34 and the probe slot 33 to prevent the probe 7 from squeezing the connecting wire 8 and wrapping it around the bottom of the probe slot 33 .

In a possible design, four probe slots 33 are arranged at equal intervals around the center of the rotatable disk 32 .

The size of the probe slots 33 is reasonably set according to needs. In a possible design, the four probe slots 33 correspond to the probes 7 with diameters of 36mm, 35mm, and 46mm, respectively.

In a possible design, the rotatable disk 32 can simultaneously meet the specifications of the probe 7 with a diameter of 35 mm and a length of 41 mm; a probe 7 with a diameter of 46 mm and a length of 32 mm; and a probe 7 with a diameter of 36 mm and a length of 76 mm.

In order to facilitate the rotation of the rotatable disk 32, in a possible design, the rotatable disk 32 is connected with a handle 4, and the handle 4 can be used to rotate the rotatable disk 32 during the experiment, and the probe 7 to be used is rotated to the bottom, then Docking cores for experiments.

In a possible design, the length of the base 1 is about 1017.82mm, the area of the diameter of the turntable 3 from 180.84mm to 280.47mm is a rotatable disk 32, and the area of the diameter of the turntable 3 from 280.47mm to 301.27mm is a non-rotatable shell 31 .

In a possible design, four rotatable disks 32 are arranged at equal intervals in the circumferential direction, and the interval between two adjacent rotatable disks 32 is 90°. During the experiment, the probe 7 to be used can be rotated to the bottom by rotating the handle. Then connect the connecting line corresponding to the probe 7 to the multi-frequency sound wave measurement system, re-control the axial force stretching frame 2 and install the rock core between the two probes 7, then the rock core can be docked for experiments, and repeating this operation can Carry out measurement of transverse and longitudinal wave velocity data at different frequencies such as 50kHz and 100kHz.

In order to facilitate detection of the clamping force, in a possible design, the probe switching device suitable for rock acoustic wave experiments also includes a pressure sensor 5 . As shown in FIG. 1 , taking the connection between the right turntable 3 and the axial force stretching frame 2 as an example, a pressure sensor 5 for detecting axial force is installed between the shell 31 of the left turntable 3 and the base 1 .

In a possible design, the pressure sensor 5 can be a pressure gauge. As shown in Figure 5, the casing 31 is inserted into the socket of the base 1, and there is a pressure bearing member similar to a piston in the socket. When the casing 31 is subjected to axial force and acts on the pressure sensor 5, the pressure is mainly received through the pressure bearing member. , the pressure value is measured by the spring tube pressure gauge inside the pressure gauge.

It is worth noting that the pressure sensor 5 can also adopt other existing installation methods, and is not limited to the method shown in FIG. 5 .

The using method of the utility model:

First pass the connection wire 8 through the wiring hole 34 on the edge of the shell 33, so that one end of the connection wire 8 enters the bottom of the probe slot 33 from the side opening 35 inside the probe slot 33, and connect this port with the probe 7 of the corresponding size. Connect, and then slowly insert the probe 7 into the probe slot 33 until the bottom of the probe 7 touches the cylinder 10 and stops the operation.

Connect the probes 7 of different specifications to the connection wire 8 according to the above steps and put them into the probe slot 33. The other end of the connection wire 8 is connected to the multi-frequency sound wave measurement system. After confirming that it is correct, the experiment can be started.

Control the axial force stretching frame 2 to move to the left until the distance between the two probes 7 is slightly greater than the length of the core, place the core between the left and right probes 7 of the same frequency, and continue to operate the axial force stretching The frame 2 is that the probes 7 on both sides clamp the rock core. When the pressure sensor 5 is observed in a suitable interval, the parameters can be adjusted on the multi-frequency acoustic wave measurement system to collect waveforms and read corresponding data.

If you need to change the probe 7 of another frequency specification for measurement, you only need to disconnect the connection line 8 and the multi-frequency sound wave measurement system, control the axial force stretching frame 2 to move to the right, take off the rock core, and turn the handle 1. Turn the probe 7 of the specified specification on the turntable 3 on the left and right sides to the bottom, then connect the connecting line 8 corresponding to the probe 7 to the multi-frequency sound wave measurement system, reinstall the core, and start the measurement , repeating this operation, you can conduct sound wave experiments at different frequencies such as 50kHz and 100kHz.

The utility model can not only satisfy the fixation of multi-standard probes 7 at the same time, so as to measure the wave velocity data of transverse and longitudinal waves at different frequencies; and in the case of frequent switching between different frequency measurements, the utility model does not need to replace the probes 7, fixers, etc. The operation can effectively realize the switching requirements of the convenient probe 7, the operation is convenient, and the experimental efficiency can be improved.

The above specific implementations have further described the purpose, technical solutions and beneficial effects of the present application in detail. It should be understood that the above are only specific implementations of the present utility model, and are not used to limit the protection scope of the present utility model. , Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a probe auto-change over device suitable for rock sound wave experiment which characterized in that: the method comprises the following steps:

a base (1);

the two rotary tables (3) are arranged on the base (1) face to face, the axial distance between the two rotary tables (3) is adjustable, and the axial direction is parallel to the horizontal direction;

the rotary disc (3) comprises a rotatable disc (32), the rotatable disc (32) can rotate in a vertical plane relative to the base (1) by taking the center as a circle center, and the rotatable disc (32) is connected or not connected with the handle (4);

a plurality of probe insertion grooves (33) are arranged on the rotatable disc (32) at intervals around the center thereof.

2. The probe switching device suitable for the rock acoustic wave experiment is characterized in that: one of the turntables (3) is in linear sliding connection with the base (1) in the axial direction.

3. The probe switching device suitable for the rock acoustic wave experiment is characterized in that: and a pressure sensor (5) for detecting the axial force is arranged between the other turntable (3) and the base (1).

4. The probe switching device suitable for the rock acoustic wave experiment is characterized in that: an axial force stretching frame (2) is slidably arranged above the base (1), and a turntable (3) which is linearly and slidably connected with the base (1) is arranged on the axial force stretching frame (2).

5. The probe switching device suitable for the rock acoustic wave experiment is characterized in that: the axial force stretching frame (2) comprises a guide rod, and the guide rod is arranged in the at least two guide holes of the base (1).

6. The probe switching device suitable for the rock acoustic wave experiment is characterized in that according to any one of claims 1 to 5: the turntable (3) further comprises a shell (31), the shell (31) is connected with the base (1), and the center of the rotatable disk (32) is rotatably connected with the shell (31) through a bearing (6) which is horizontally arranged.

7. The probe switching device suitable for the rock acoustic wave experiment is characterized in that: an axial large circular through hole is formed in the rotatable disc (32), a cylinder (10) is mounted at the bottom of the large circular through hole to form the probe slot (33), and the cylinder (10) is in threaded connection or clamped connection with the rotatable disc (32).

8. The probe switching device suitable for rock acoustic wave experiments according to claim 7, wherein: the top surface of the cylinder (10) is concave conical surface.

9. The probe switching device suitable for the rock acoustic wave experiment is characterized in that: 4 probe insertion grooves (33) are arranged on the rotatable disc (32) at equal intervals around the center thereof.

10. The probe switching device suitable for rock acoustic wave experiments according to any one of claims 1 to 5 and 7 to 9, wherein: a wiring hole (34) is arranged beside each probe slot (33), the wiring hole (34) is arranged on the rotatable disc (32) independently of the probe slot (33), and a side hole (35) is formed in the side wall of the bottom of the probe slot (33) and is communicated with the wiring hole (34).

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