A vibration monitor and monitoring method for use in depth direction

Abstract

The present invention discloses a vibration monitor and monitoring method applied in the depth direction, the monitor includes a vibration isolation casing, an upper circular fixed plate, a lower circular fixed plate and a vibration detection platform, a vibration detection module is arranged at the bottom of the vibration detection platform, a lifting mechanism is arranged between the upper circular fixed plate and the lower circular fixed plate, a horizontal adjustment mechanism is arranged between the lower circular fixed plate and the vibration detection platform, and a camera is arranged at the center of the bottom surface of the upper circular fixed plate; the method includes the following steps: 1. Layout of monitoring holes; 2. Assembly of vibration monitor; 3. Installation and adjustment of vibration monitor; 4. Collection and transmission of vibration data. The present invention is reasonably designed and low in cost, can conveniently install a vibration pickup in the vibration monitoring hole, and ensures the leveling of the vibration pickup, which not only improves the accuracy of vibration monitoring, but also ensures the timeliness of monitoring data.

Description

Technical Field

[0001] The present invention belongs to the technical field of vibration monitoring, and in particular relates to a vibration monitor and a monitoring method applied in a depth direction. Background Art

[0002] With the rapid development of national infrastructure, underpass projects are common, and subway tunnels under railway stations also face great technical difficulties. The passage of trains above adds additional dynamic loads to the underpass tunnel, causing additional stress in the tunnel lining, affecting the safety of the tunnel. How to determine the size and propagation depth of the train dynamic load has become a problem.

[0003] Most subway tunnels are shallowly buried, and deep vibration monitoring on site requires drilling measurement holes in the railway station area. The following problems exist in monitoring: (1) The installation of the vibration pickup. Since the measurement holes are mostly 20 cm in diameter and 5 m deep, it is difficult to ensure that the vibration pickup is level with the ground of the monitoring hole. (2) The measurement site is located in the railway station area with heavy traffic, and to ensure the continuity of the monitoring data, remote real-time monitoring is required.

[0004] Therefore, there is a lack of a vibration monitor and monitoring method for use in the depth direction, which can easily install the vibration pickup in the vibration monitoring hole and ensure the leveling of the vibration pickup, which not only improves the vibration monitoring accuracy, but also ensures the timeliness of the monitoring data. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a vibration monitor for use in the depth direction in view of the deficiencies in the above-mentioned prior art. The monitor has a reasonable design and low cost. The vibration pickup can be easily installed in the vibration monitoring hole and the leveling of the vibration pickup can be ensured, which not only improves the vibration monitoring accuracy, but also ensures the timeliness of the monitoring data.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vibration monitor applied in the depth direction, characterized in that: it includes a vibration isolation casing, an upper circular fixing plate installed on the top of the vibration isolation casing and a lower circular fixing plate located at the bottom of the vibration isolation casing, and a vibration detection platform arranged at the bottom of the lower circular fixing plate, a vibration detection module is arranged at the bottom of the vibration detection platform, a lifting mechanism is arranged between the upper circular fixing plate and the lower circular fixing plate, a horizontal adjustment mechanism for adjusting the vibration detection platform to a horizontal state is arranged between the lower circular fixing plate and the vibration detection platform, the lower circular fixing plate can move close to and away from the bottom of the vibration isolation casing, and a camera is arranged at the center position of the bottom surface of the upper circular fixing plate;

[0007] The vibration detection module comprises a vibration pickup installed at the bottom of the vibration detection platform and an instrument host connected to the vibration pickup.

[0008] The above-mentioned vibration monitor used in the depth direction is characterized in that: the lifting mechanism includes a first telescopic rod, a second telescopic rod and a third telescopic rod arranged at intervals along the circumferential direction, the upper ends of the first telescopic rod, the second telescopic rod and the third telescopic rod are fixedly connected to the bottom surface of the upper circular fixed plate, the lower ends of the first telescopic rod, the second telescopic rod and the third telescopic rod are fixedly connected to the top surface of the lower circular fixed plate, and an upper circular level is arranged at the center position of the top surface of the upper circular fixed plate.

[0009] The above-mentioned vibration monitor used in the depth direction is characterized in that: the horizontal adjustment mechanism includes a first inclined telescopic rod, a second inclined telescopic rod and a third inclined telescopic rod connected between the lower circular fixed plate and the vibration detection platform, the first inclined telescopic rod, the second inclined telescopic rod and the third inclined telescopic rod are evenly distributed along the circumferential direction of the lower circular fixed plate and the vibration detection platform, the top surface of the vibration detection platform is provided with a lower circular level, the bottom surface of the vibration detection platform is provided with a U-shaped groove for installing a vibration pickup, and the bottom of the U-shaped groove is provided with a sharp corner.

[0010] The above-mentioned vibration monitor used in the depth direction is characterized in that: the bottom of the lower circular fixed plate is provided with three first upper interfacing seats, second upper interfacing seats and third upper interfacing seats for hingedly connecting the upper ends of the first inclined telescopic rod, the second inclined telescopic rod and the third inclined telescopic rod respectively, and the top surface of the vibration detection platform is provided with three first lower interfacing seats, second lower interfacing seats and third lower interfacing seats for hingedly connecting the lower ends of the first inclined telescopic rod, the second inclined telescopic rod and the third inclined telescopic rod respectively.

[0011] The above-mentioned vibration monitor used in the depth direction is characterized in that: the vibration detection platform is provided with a platform through hole for the transmission line of the vibration pickup to pass through, the center position of the lower circular fixing plate is provided with a lower through hole, and the upper circular fixing plate is provided with an upper through hole.

[0012] At the same time, the present invention also discloses a vibration monitoring method applied in the depth direction, which has simple steps, reasonable design, convenient implementation, high detection accuracy and good use effect, and is characterized in that the method comprises the following steps:

[0013] Step 1: Layout of monitoring holes:

[0014] Drill holes in the area to be monitored, and compact and level the bottom of the holes to form vibration monitoring holes;

[0015] Step 2: Assembly of the vibration monitor:

[0016] Step 201, installing the instrument host on a plane on one side of the top of the vibration monitoring hole;

[0017] Step 202, install the vibration pickup in the U-shaped groove, and connect the transmission line of the vibration pickup through the platform through hole, the lower through hole and the upper through hole to the instrument host;

[0018] Step 203, install a camera at the center of the bottom surface of the upper circular fixing plate, and pass the transmission line of the camera through the upper through hole to connect with the instrument host, thereby completing the assembly of the vibration monitor;

[0019] Step 3: Installation and adjustment of vibration monitor:

[0020] Step 301, insert the bottom of the assembled vibration monitor into the vibration monitoring hole, and fit the outer side of the vibration isolation casing with the inner side of the vibration monitoring hole; wherein the vertical center of the vibration monitor is coaxially arranged with the center of the vibration monitoring hole;

[0021] Step 302, operating the first telescopic rod, the second telescopic rod and the third telescopic rod to extend synchronously, and during the process of the first telescopic rod, the second telescopic rod and the third telescopic rod extending synchronously, the first telescopic rod, the second telescopic rod and the third telescopic rod push the lower circular fixing plate to move in a direction away from the bottom of the vibration isolation casing; wherein, during the process of the first telescopic rod, the second telescopic rod and the third telescopic rod extending synchronously, ensure that the bubble in the upper circular level is centered;

[0022] Step 303: When the lower circular fixing plate moves away from the bottom of the vibration isolation casing, the lower circular fixing plate pushes the vibration detection platform to move downward, and when the sharp corner contacts the bottom of the vibration monitoring hole, the extension of the first telescopic rod, the second telescopic rod and the third telescopic rod is stopped;

[0023] Step 304: operate the first tilt telescopic rod to extend or contract, the second tilt telescopic rod to extend or contract, and the third tilt telescopic rod to extend or contract. During the process of the first tilt telescopic rod, the second tilt telescopic rod, and the third tilt telescopic rod driving the vibration detection platform to level, the camera collects an image of the lower circular level.

[0024] Step 305: When the bubble in the image of the lower circular level is centered through the image of the lower circular level captured by the camera, the adjustment of the first tilt telescopic rod, the second tilt telescopic rod and the third tilt telescopic rod is stopped, and the vibration detection platform is adjusted to a horizontal state;

[0025] Step 306, repeating step 302 until the sharp corner is completely inserted into the bottom of the vibration monitoring hole, stopping the extension of the first telescopic rod, the second telescopic rod and the third telescopic rod;

[0026] Step 4: Collection and transmission of vibration data:

[0027] Step 401, set the recording time, and then start the instrument host to work;

[0028] Step 402: The vibration pickup collects the vibration signal and sends the vibration signal to the instrument host. The instrument host displays the vibration signal curve. At the same time, the instrument host sends the received vibration signal to the monitoring computer through the internal WIFI module.

[0029] The above method is characterized in that: in step 402, the vibration signal curve includes an X-direction vibration curve, a Y-direction vibration curve and a Z-direction vibration curve, wherein the abscissa of the X-direction vibration curve, the Y-direction vibration curve and the Z-direction vibration curve is time, and the ordinate of the X-direction vibration curve, the Y-direction vibration curve and the Z-direction vibration curve is vibration speed;

[0030] The maximum vibration speed in the X direction, the maximum vibration speed in the Y direction and the maximum vibration speed in the Z direction are obtained through the vibration curve in the X direction, the vibration curve in the Y direction and the vibration curve in the Z direction; when the maximum vibration speed in the X direction, the maximum vibration speed in the Y direction and the maximum vibration speed in the Z direction exceed the alarm value, an early warning reminder is issued.

[0031] The above method is characterized in that: in step 307, three laser ranging sensors are evenly distributed at the bottom of the lower circular fixed plate, and in the process of the first tilt telescopic rod, the second tilt telescopic rod and the third tilt telescopic rod driving the vibration detection platform to level, the three laser ranging sensors are respectively the first laser ranging sensor, the second laser ranging sensor and the third laser ranging sensor, and the first laser ranging sensor, the second laser ranging sensor and the third laser ranging sensor respectively detect the first spacing, the second spacing and the third spacing between the vibration detection platform and the lower circular fixed plate, and when the bubble in the image of the lower circular level is centered and the first spacing, the second spacing and the third spacing are equal, the vibration detection platform is adjusted to a horizontal state.

[0032] The above method is characterized in that: before the bottom of the assembled vibration monitor is extended into the vibration monitoring hole in step 301, a first outer vibration isolation layer is arranged on the outer wall of the vibration isolation casing, a first inner vibration isolation layer is arranged on the inner wall of the vibration isolation casing, a second outer vibration isolation layer is arranged on the outer ring of the lower circular fixing plate, and a second inner vibration isolation layer is arranged on the inner ring side of the lower circular fixing plate.

[0033] Compared with the prior art, the present invention has the following advantages:

[0034] 1. Simple structure, reasonable design, easy installation and layout, and low investment cost.

[0035] 2. The lifting mechanism used drives the lower circular fixing plate to move up and down. During the installation of the vibration pickup, the lower circular fixing plate can be pushed to move away from the bottom of the vibration isolation casing. This effectively adapts to the monitoring in the depth direction, thereby moving the vibration pickup into the vibration monitoring hole, which is convenient to operate.

[0036] 3. The horizontal adjustment mechanism used is connected between the lower circular fixed plate and the vibration detection platform. When the vibration pickup moves to the bottom of the vibration monitoring hole, the horizontal adjustment mechanism is operated to adjust the horizontal state of the vibration detection platform. The horizontal state of the vibration detection platform ensures that the vibration pickup is leveled, thereby improving the accuracy of the vibration signal collected by the vibration pickup.

[0037] 4. The vibration pickup used is connected to the instrument host. There is a WIFI module inside the instrument host. The vibration pickup collects vibration signals and sends them to the instrument host. The instrument host displays the vibration signal curve. At the same time, the instrument host sends the received vibration signal to the monitoring computer through the internal WIFI module, which effectively adapts to the situation of large traffic volume in the railway station area, monitors the continuity of data, and realizes remote real-time monitoring.

[0038] 5. A camera is set at the center of the bottom surface of the upper circular fixed plate so that in the process of leveling the vibration detection platform, the image of the lower circular level can be collected through the camera. When the bubble in the image of the lower circular level is centered, the vibration detection platform is adjusted to a horizontal state, thereby effectively adapting to the leveling of the vibration pickup in the deep hole.

[0039] 6. The vibration monitoring method used in the depth direction is simple in steps, easy to implement and simple to operate, ensuring the accuracy of vibration monitoring and the timeliness of monitoring data.

[0040] 7. The vibration monitoring method used in the depth direction is easy to operate and has good effect. First, a hole is drilled in the monitored area, and the bottom of the hole is compacted and leveled to form a vibration monitoring hole. Then the vibration monitor is assembled; the bottom of the assembled vibration monitor is extended into the vibration monitoring hole, and the vibration detection platform is adjusted to a horizontal state during the installation process; finally, the vibration pickup collects the vibration signal and sends the vibration signal to the instrument host. The instrument host displays the vibration signal curve. At the same time, the instrument host sends the received vibration signal to the monitoring computer through the internal WIFI module to realize vibration collection and remote monitoring.

[0041] In summary, the present invention is reasonably designed and low-cost, can conveniently install the vibration pickup in the vibration monitoring hole, and ensures the leveling of the vibration pickup, which not only improves the vibration monitoring accuracy, but also ensures the timeliness of the monitoring data.

[0042] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the structure of the vibration monitor applied in the depth direction according to the present invention.

[0044] Figure 2It is a structural schematic diagram of the horizontal adjustment mechanism of the vibration monitor applied in the depth direction of the present invention.

[0045] Figure 3 for Figure 1 Schematic diagram of the structure after removing the instrument host and vibration monitoring hole.

[0046] Figure 4 The figure is a flowchart of the vibration monitoring method applied in the depth direction according to the present invention.

[0047] Description of reference numerals:

[0048] 1—upper circular fixing plate; 1-1—upper through hole; 2—lower circular fixing plate;

[0049] 2-1—lower through hole; 3—first telescopic rod; 4—second telescopic rod;

[0050] 5—third telescopic rod; 6-1—first inclined telescopic rod;

[0051] 6-2—second inclined telescopic rod; 6-3—third inclined telescopic rod; 6-4—first upper connecting seat;

[0052] 6-5—second upper transfer seat; 6-6—third upper transfer seat; 6-7—first lower transfer seat;

[0053] 6-8—Second lower connecting seat; 6-9—Third lower connecting seat; 7—Vibration isolation casing;

[0054] 8—lower circular level; 9—vibration pickup;

[0055] 10—U-shaped groove; 11—upper circular level; 12—camera;

[0056] 13—sharp corner; 17—laser distance sensor; 18—instrument host;

[0057] 19—Vibration detection platform; 19-1—Platform through hole; 20—Vibration monitoring hole. DETAILED DESCRIPTION

[0058] like Figure 1 and Figure 3A vibration monitor for use in the depth direction shown in the figure comprises a vibration isolation casing 7, an upper circular fixing plate 1 installed on the top of the vibration isolation casing 7, a lower circular fixing plate 2 located at the bottom of the vibration isolation casing 7, and a vibration detection platform 19 arranged at the bottom of the lower circular fixing plate 2, a vibration detection module is arranged at the bottom of the vibration detection platform 19, a lifting mechanism is arranged between the upper circular fixing plate 1 and the lower circular fixing plate 2, a horizontal adjustment mechanism for adjusting the vibration detection platform 19 to a horizontal state is arranged between the lower circular fixing plate 2 and the vibration detection platform 19, the lower circular fixing plate 2 can move close to and away from the bottom of the vibration isolation casing 7, and a camera 12 is arranged at the center of the bottom surface of the upper circular fixing plate 1;

[0059] The vibration detection module includes a vibration pickup 9 installed at the bottom of a vibration detection platform 19 and an instrument host 18 connected to the vibration pickup 9 .

[0060] In this embodiment, the lifting mechanism includes a first telescopic rod 3, a second telescopic rod 4 and a third telescopic rod 5 arranged at intervals along the circumferential direction, the upper ends of the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 are fixedly connected to the bottom surface of the upper circular fixed plate 1, and the lower ends of the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 are fixedly connected to the top surface of the lower circular fixed plate 2, and an upper circular level 11 is arranged at the center position of the top surface of the upper circular fixed plate 1.

[0061] In this embodiment, the horizontal adjustment mechanism includes a first tilt telescopic rod 6-1, a second tilt telescopic rod 6-2 and a third tilt telescopic rod 6-3 connected between the lower circular fixed plate 2 and the vibration detection platform 19. The first tilt telescopic rod 6-1, the second tilt telescopic rod 6-2 and the third tilt telescopic rod 6-3 are evenly distributed along the circumferential edge direction of the lower circular fixed plate 2 and the vibration detection platform 19. The top surface of the vibration detection platform 19 is provided with a lower circular level 8, and the bottom surface of the vibration detection platform 19 is provided with a U-shaped groove 10 for installing a vibration pickup 9, and the bottom of the U-shaped groove 10 is provided with a sharp corner 13.

[0062] like Figure 2 As shown, in this embodiment, the bottom of the lower circular fixed plate 2 is provided with three first upper interfacing seats 6-4, second upper interfacing seats 6-5 and third upper interfacing seats 6-6 for hingedly connecting the upper ends of the first inclined telescopic rod 6-1, the second inclined telescopic rod 6-2 and the third inclined telescopic rod 6-3 respectively, and the top surface of the vibration detection platform 19 is provided with three first lower interfacing seats 6-7, second lower interfacing seats 6-8 and third lower interfacing seats 6-9 for hingedly connecting the lower ends of the first inclined telescopic rod 6-1, the second inclined telescopic rod 6-2 and the third inclined telescopic rod 6-3 respectively.

[0063] In this embodiment, the vibration detection platform 19 and the U-shaped groove 10 are provided with a platform through hole 19-1 for the transmission line of the vibration pickup 9 to pass through, a lower through hole 2-1 is provided at the center position of the lower circular fixing plate 2, and an upper through hole 1-1 is provided in the upper circular fixing plate 1.

[0064] In this embodiment, one ends of the first inclined telescopic rod 6-1, the second inclined telescopic rod 6-2 and the third inclined telescopic rod 6-3 are installed in the first upper intersecting seat 6-4, the second upper intersecting seat 6-5 and the third upper intersecting seat 6-6 through an upper hinge shaft, and an upper retaining spring for limiting is provided on the upper hinge shaft. The other ends of the first inclined telescopic rod 6-1, the second inclined telescopic rod 6-2 and the third inclined telescopic rod 6-3 are installed in the first upper intersecting seat 6-4, the second upper intersecting seat 6-5 and the third upper intersecting seat 6-6 through a lower hinge shaft, and a lower retaining spring for limiting is provided on the lower hinge shaft.

[0065] In this embodiment, the camera 12 is a CAMSOY S9+ camera.

[0066] In this embodiment, the instrument host 18 is the Sichuan Chengdu Jiaobo Blasting Vibrometer L20.

[0067] In this embodiment, the vibration pickup 9 is a three-component vibration pickup L20 produced by Sichuan Chengdu Jiaobo Blasting Vibrometer.

[0068] In this embodiment, the diameter of the lower through hole 2 - 1 is larger than the cross section of the camera 12 , and the centers of the camera 12 and the lower circular level 8 are located on the same straight line.

[0069] In this embodiment, the angles formed between the first tilt telescopic rod 6 - 1 , the second tilt telescopic rod 6 - 2 , the third tilt telescopic rod 6 - 3 and the vibration detection platform 19 are obtuse angles.

[0070] In this embodiment, the lower through hole 2 - 1 is provided for the following purposes: first, to facilitate the camera 12 to collect the image of the lower circular level 8; second, to facilitate the passing of the line.

[0071] like Figure 1 and Figure 4 A vibration monitoring method applied in the depth direction is shown, comprising the following steps:

[0072] Step 1: Layout of monitoring holes:

[0073] Drilling a hole in the area to be monitored, and compacting and leveling the bottom of the hole to form a vibration monitoring hole 20;

[0074] Step 2: Assembly of the vibration monitor:

[0075] Step 201, installing the instrument host 18 on a plane on one side of the top of the vibration monitoring hole 20;

[0076] Step 202, install the vibration pickup 9 in the U-shaped groove 10, and connect the transmission line of the vibration pickup 9 to the instrument host 18 through the platform through hole 19-1, the lower through hole 2-1 and the upper through hole 1-1;

[0077] Step 203, installing the camera 12 at the center of the bottom surface of the upper circular fixing plate 1, and passing the transmission line of the camera 12 through the upper through hole 1-1 to connect with the instrument host 18, thereby completing the assembly of the vibration monitor;

[0078] Step 3: Installation and adjustment of vibration monitor:

[0079] Step 301, insert the bottom of the assembled vibration monitor into the vibration monitoring hole 20, and the outer side surface of the vibration isolation casing 7 is in contact with the inner side surface of the vibration monitoring hole 20; wherein the vertical center of the vibration monitor is coaxially arranged with the center of the vibration monitoring hole 20;

[0080] Step 302, operate the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 to extend synchronously, and during the process of the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 extending synchronously, the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 push the lower circular fixing plate 2 to move in a direction away from the bottom of the vibration isolation casing 7; wherein, during the process of the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 extending synchronously, ensure that the bubble in the upper circular level 11 is centered;

[0081] Step 303: When the lower circular fixing plate 2 moves away from the bottom of the vibration isolation casing 7, the lower circular fixing plate 2 pushes the vibration detection platform 19 to move downward, and when the sharp corner 13 contacts the bottom of the vibration monitoring hole 20, the extension of the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5 is stopped;

[0082] Step 304: operate the first tilt telescopic rod 6-1 to extend or contract, the second tilt telescopic rod 6-2 to extend or contract, and the third tilt telescopic rod 6-3 to extend or contract. During the process of the first tilt telescopic rod 6-1, the second tilt telescopic rod 6-2, and the third tilt telescopic rod 6-3 driving the vibration detection platform 19 to level, the camera 12 collects an image of the lower circular level 8;

[0083] Step 305: the image of the lower circular level 8 is collected by the camera 12. When the bubble in the image of the lower circular level 8 is centered, the adjustment of the first tilt telescopic rod 6-1, the second tilt telescopic rod 6-2 and the third tilt telescopic rod 6-3 is stopped, and the vibration detection platform 19 is adjusted to be in a horizontal state;

[0084] Step 306, repeating step 302 until the sharp corner 13 is completely inserted into the bottom of the vibration monitoring hole 20, stopping the extension of the first telescopic rod 3, the second telescopic rod 4 and the third telescopic rod 5;

[0085] Step 4: Collection and transmission of vibration data:

[0086] Step 401, set the recording time, and then start the instrument host 18 to work;

[0087] Step 402, the vibration pickup 9 collects the vibration signal and sends the vibration signal to the instrument host 18, the instrument host 18 displays the vibration signal curve, and the instrument host 18 sends the received vibration signal to the monitoring computer through the internal WIFI module.

[0088] In this embodiment, the vibration signal curve in step 402 includes an X-direction vibration curve, a Y-direction vibration curve, and a Z-direction vibration curve, wherein the abscissa of the X-direction vibration curve, the Y-direction vibration curve, and the Z-direction vibration curve is time, and the ordinate of the X-direction vibration curve, the Y-direction vibration curve, and the Z-direction vibration curve is vibration speed;

[0089] The maximum vibration speed in the X direction, the maximum vibration speed in the Y direction and the maximum vibration speed in the Z direction are obtained through the vibration curve in the X direction, the vibration curve in the Y direction and the vibration curve in the Z direction; when the maximum vibration speed in the X direction, the maximum vibration speed in the Y direction and the maximum vibration speed in the Z direction exceed the alarm value, an early warning reminder is issued.

[0090] In this embodiment, in step 307, three laser ranging sensors 17 are evenly distributed at the bottom of the lower circular fixed plate 2. In the process of the first tilt telescopic rod 6-1, the second tilt telescopic rod 6-2 and the third tilt telescopic rod 6-3 driving the vibration detection platform 19 to level, the three laser ranging sensors 17 are respectively the first laser ranging sensor, the second laser ranging sensor and the third laser ranging sensor. The first laser ranging sensor, the second laser ranging sensor and the third laser ranging sensor respectively detect the first spacing, the second spacing and the third spacing between the vibration detection platform 19 and the lower circular fixed plate 2. When the bubble in the image of the lower circular level 8 is centered and the first spacing, the second spacing and the third spacing are equal, the vibration detection platform 19 is adjusted to a horizontal state.

[0091] In this embodiment, before the bottom of the assembled vibration monitor is extended into the vibration monitoring hole 20 in step 301, a first outer vibration isolation layer is arranged on the outer wall of the vibration isolation casing 7, a first inner vibration isolation layer is arranged on the inner wall of the vibration isolation casing 7, a second outer vibration isolation layer is arranged on the outer ring of the lower circular fixing plate 2, and a second inner vibration isolation layer is arranged on the inner ring side of the lower circular fixing plate 2.

[0092] In this embodiment, the purposes of setting the sharp corner 13 are: first, to prevent the bottom of the vibration pickup from hitting the bottom of the vibration monitoring hole 20 and causing damage to the vibration pickup 9 during the descent of the vibration monitor; second, to insert the bottom of the vibration monitoring hole 20 to stabilize the vibration detection platform 19 and the vibration pickup 9; third, to ensure that the vibration pickup 9 can horizontally contact the bottom of the vibration monitoring hole 20 to improve the accuracy of the vibration pickup 9.

[0093] In this embodiment, it should be noted that the extension speed of the first telescopic rod 3 , the second telescopic rod 4 and the third telescopic rod 5 in step 306 is less than the extension speed of the first telescopic rod 3 , the second telescopic rod 4 and the third telescopic rod 5 in step 302 .

[0094] In this embodiment, the thickness of the first outer vibration isolation layer and the first inner vibration isolation layer are both 10 mm to 20 mm; the thickness of the second outer vibration isolation layer is 10 mm to 20 mm, and the thickness of the second inner vibration isolation layer is 10 mm to 20 mm.

[0095] In this embodiment, the first outer vibration isolation layer, the first inner vibration isolation layer, the second outer vibration isolation layer, and the second inner vibration isolation layer are used to absorb the vibration transmitted by the vibration isolation casing. Since the vibration isolation casing contacts the inner wall of the monitoring hole, a vibration response is caused. In order to prevent this vibration from being transmitted to the vibration pickup, a vibration isolation layer is added to reduce the error.

[0096] In this embodiment, the first outer vibration isolation layer and the first inner vibration isolation layer as well as the second outer vibration isolation layer and the second inner vibration isolation layer may all be rubber vibration isolation layers.

[0097] In this embodiment, during actual use, a pressure strain gauge can also be set at the bottom of the vibration pickup 9. When the pressure strain gauge detects pressure during the process of inserting the sharp corner 13 into the bottom of the vibration monitoring hole 20, it means that the sharp corner 13 is completely inserted into the bottom of the vibration monitoring hole 20, and the bottom of the vibration pickup 9 contacts the bottom of the vibration monitoring hole 20.

[0098] In summary, the present invention has a reasonable design and low cost. The bottom of the assembled vibration monitor extends into the vibration monitoring hole, and the vibration detection platform is adjusted to a horizontal state during the installation process; finally, the vibration pickup collects the vibration signal and sends the vibration signal to the instrument host, the instrument host displays the vibration signal curve, and at the same time the instrument host sends the received vibration signal to the monitoring computer through the internal WIFI module, thereby realizing vibration collection and remote monitoring, so that the vibration pickup can be conveniently installed in the vibration monitoring hole and the leveling of the vibration pickup is ensured, which not only improves the vibration monitoring accuracy, but also ensures the timeliness of the monitoring data.

[0099] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A vibration monitor for use in depth, characterized in that: The invention comprises a vibration isolation casing (7), an upper circular fixing plate (1) installed on the top of the vibration isolation casing (7), a lower circular fixing plate (2) located at the bottom of the vibration isolation casing (7), and a vibration detection platform (19) arranged at the bottom of the lower circular fixing plate (2); a vibration detection module is arranged at the bottom of the vibration detection platform (19); a lifting mechanism is arranged between the upper circular fixing plate (1) and the lower circular fixing plate (2); a horizontal adjustment mechanism for adjusting the vibration detection platform (19) to a horizontal state is arranged between the lower circular fixing plate (2) and the vibration detection platform (19); the lower circular fixing plate (2) can move close to and away from the bottom of the vibration isolation casing (7); and a camera (12) is arranged at the center of the bottom surface of the upper circular fixing plate (1); The vibration detection module comprises a vibration pickup (9) installed at the bottom of a vibration detection platform (19) and an instrument host (18) connected to the vibration pickup (9).

2. A vibration monitor for use in the depth direction according to claim 1, characterized in that: The lifting mechanism comprises a first telescopic rod (3), a second telescopic rod (4) and a third telescopic rod (5) arranged at intervals along a circumferential direction, the upper ends of the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) are fixedly connected to the bottom surface of an upper circular fixing plate (1), the lower ends of the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) are fixedly connected to the top surface of a lower circular fixing plate (2), and an upper circular leveler (11) is arranged at the center position of the top surface of the upper circular fixing plate (1).

3. A vibration monitor for use in the depth direction according to claim 1, characterized in that: The horizontal adjustment mechanism comprises a first tilted telescopic rod (6-1), a second tilted telescopic rod (6-2) and a third tilted telescopic rod (6-3) connected between a lower circular fixing plate (2) and a vibration detection platform (19); the first tilted telescopic rod (6-1), the second tilted telescopic rod (6-2) and the third tilted telescopic rod (6-3) are evenly distributed along the circumferential direction of the lower circular fixing plate (2) and the vibration detection platform (19); a lower circular level (8) is arranged on the top surface of the vibration detection platform (19); a U-shaped groove (10) for mounting a vibration pickup (9) is arranged on the bottom surface of the vibration detection platform (19); and a sharp corner (13) is arranged at the bottom of the U-shaped groove (10).

4. A vibration monitor for use in the depth direction according to claim 3, characterized in that: The bottom of the lower circular fixed plate (2) is provided with three first upper interfacing seats (6-4), second upper interfacing seats (6-5) and third upper interfacing seats (6-6) for respectively hingedly connecting the upper end of the first inclined telescopic rod (6-1), the upper end of the second inclined telescopic rod (6-2) and the upper end of the third inclined telescopic rod (6-3); the top surface of the vibration detection platform (19) is provided with three first lower interfacing seats (6-7), second lower interfacing seats (6-8) and third lower interfacing seats (6-9) for respectively hingedly connecting the lower end of the first inclined telescopic rod (6-1), the lower end of the second inclined telescopic rod (6-2) and the lower end of the third inclined telescopic rod (6-3).

5. A vibration monitor for use in the depth direction according to claim 1, characterized in that: The vibration detection platform (19) is provided with a platform through hole (19-1) for the transmission line of the vibration pickup (9) to pass through, the lower circular fixing plate (2) is provided with a lower through hole (2-1) at the center position, and the upper circular fixing plate (1) is provided with an upper through hole (1-1).

6. A method for monitoring vibration in depth direction using the monitor as claimed in claim 1, characterized in that: The method comprises the following steps: Step 1: Layout of monitoring holes: Drilling a hole in the area to be monitored, and compacting and leveling the bottom of the hole to form a vibration monitoring hole (20); Step 2: Assembly of the vibration monitor: Step 201, installing the instrument host (18) on a plane on one side of the top of the vibration monitoring hole (20); Step 202, installing the vibration pickup (9) in the U-shaped groove (10), passing the transmission line of the vibration pickup (9) through the platform through hole (19-1), the lower through hole (2-1) and the upper through hole (1-1) to connect with the instrument host (18); Step 203, a camera (12) is installed at the center of the bottom surface of the upper circular fixing plate (1), and a transmission line of the camera (12) is passed through the upper through hole (1-1) to connect with the instrument host (18), and then the upper circular fixing plate (1) is fixedly connected to the top of the lifting mechanism to complete the assembly of the vibration monitor; Step 3: Installation and adjustment of vibration monitor: Step 301, insert the bottom of the assembled vibration monitor into the vibration monitoring hole (20), and the outer side surface of the vibration isolation casing (7) fits with the inner side surface of the vibration monitoring hole (20); wherein the vertical center of the vibration monitor is coaxially arranged with the center of the vibration monitoring hole (20); Step 302, operating the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) to extend synchronously, and during the process of the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) extending synchronously, the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) push the lower circular fixing plate (2) to move in a direction away from the bottom of the vibration isolation casing (7); wherein, during the process of the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) extending synchronously, ensure that the bubble in the upper circular level (11) is centered; Step 303: During the process of the lower circular fixing plate (2) moving in a direction away from the bottom of the vibration isolation casing (7), the lower circular fixing plate (2) pushes the vibration detection platform (19) to move downward, and when the sharp corner (13) contacts the bottom of the vibration monitoring hole (20), the extension of the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5) is stopped; Step 304, operating the first tilt telescopic rod (6-1) to extend or contract, the second tilt telescopic rod (6-2) to extend or contract, and the third tilt telescopic rod (6-3) to extend or contract. In the process of the first tilt telescopic rod (6-1), the second tilt telescopic rod (6-2), and the third tilt telescopic rod (6-3) driving the vibration detection platform (19) to level, the camera (12) collects an image of the lower circular level (8); Step 305: the image of the lower circular level (8) is collected by the camera (12), when the bubble in the image of the lower circular level (8) is centered, the adjustment of the first tilt telescopic rod (6-1), the second tilt telescopic rod (6-2) and the third tilt telescopic rod (6-3) is stopped, and the vibration detection platform (19) is adjusted to be in a horizontal state; Step 306, repeating step 302 until the sharp corner (13) is completely inserted into the bottom of the vibration monitoring hole (20), and stopping the extension of the first telescopic rod (3), the second telescopic rod (4) and the third telescopic rod (5); Step 4: Collection and transmission of vibration data: Step 401, set the recording time, and then start the instrument host (18) to work; Step 402, the vibration pickup (9) collects the vibration signal and sends the vibration signal to the instrument host (18), the instrument host (18) displays the vibration signal curve, and the instrument host (18) sends the received vibration signal to the monitoring computer through the internal WIFI module.

7. The method according to claim 6, characterized in that: In step 402, the vibration signal curve includes an X-direction vibration curve, a Y-direction vibration curve, and a Z-direction vibration curve, wherein the abscissa of the X-direction vibration curve, the Y-direction vibration curve, and the Z-direction vibration curve is time, and the ordinate of the X-direction vibration curve, the Y-direction vibration curve, and the Z-direction vibration curve is vibration speed; The maximum vibration speed in the X direction, the maximum vibration speed in the Y direction and the maximum vibration speed in the Z direction are obtained through the vibration curve in the X direction, the vibration curve in the Y direction and the vibration curve in the Z direction; when the maximum vibration speed in the X direction, the maximum vibration speed in the Y direction and the maximum vibration speed in the Z direction exceed the alarm value, an early warning reminder is issued.

8. The method according to claim 6, characterized in that: In step 307, three laser distance measuring sensors (17) are evenly distributed at the bottom of the lower circular fixed plate (2). When the first tilt telescopic rod (6-1), the second tilt telescopic rod (6-2) and the third tilt telescopic rod (6-3) drive the vibration detection platform (19) to level, the three laser distance measuring sensors (17) are respectively the first laser distance measuring sensor, the second laser distance measuring sensor and the third laser distance measuring sensor. The first laser distance measuring sensor, the second laser distance measuring sensor and the third laser distance measuring sensor respectively detect the first spacing, the second spacing and the third spacing between the vibration detection platform (19) and the lower circular fixed plate (2). When the bubble in the image of the lower circular level (8) is centered and the first spacing, the second spacing and the third spacing are equal, the vibration detection platform (19) is adjusted to a horizontal state.

9. The method according to claim 6, characterized in that: In step 301, before the bottom of the assembled vibration monitor is inserted into the vibration monitoring hole (20), a first outer vibration isolation layer is arranged on the outer side wall of the vibration isolation casing (7), a first inner vibration isolation layer is arranged on the inner side wall of the vibration isolation casing (7), a second outer vibration isolation layer is arranged on the outer ring of the lower circular fixing plate (2), and a second inner vibration isolation layer is arranged on the inner ring side of the lower circular fixing plate (2).

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