A vibration sensor for mining

Abstract

The utility model relates to the technical field of intelligent equipment for mining, and specifically to a vibration sensor for mining, including a vibration sensor body, a mounting seat, a magnetic suction cup and a damping assembly. The mounting seat includes a cylindrical body, an end seat is arranged at the upper end, and a threaded mounting portion is arranged at the lower end, which cooperates with a driving ring. The rotation of the driving ring causes the first damping block to expand outward along the bottom side of the end seat through a guide slider to achieve mechanical extrusion fixation. The magnetic suction cup is located on the upper side of the end seat, and a non-magnetic protective cover is built in to avoid magnetizing the vibration sensor body. The vibration sensor body is installed by a threaded connection. The second damping block is embedded in the embedding groove of the vibration sensor body, the cylindrical body and the protective cover to absorb vibration and enhance stability. This design integrates the dual fixing methods of magnetic attraction and mechanical extrusion fixation, provides efficient shock absorption and stable installation, ensures vibration monitoring in a mining environment, and has high stability and adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent equipment for mining, and in particular to a vibration sensor for mining. Background Art

[0002] The information disclosed in the background technology of the present invention is only intended to increase the understanding of the overall background of the present invention, and shall not necessarily be regarded as an admission or suggestion in any form that the information constitutes the prior art already known to those skilled in the art.

[0003] Vibration monitoring is a key link to ensure the safe operation of facilities and prevent accidents. Mining intrinsically safe vibration sensors are mainly installed on the bearing covers of various rotating mechanical devices (such as turbines, compressors, fans and pumps, etc.), and can measure vibration speed or vibration amplitude. It is mainly used to diagnose the failure of rotating machinery in advance or provide improvement basis for the laboratory to improve products, prepare for maintenance in advance, reduce the occurrence of potential accidents, and improve work efficiency.

[0004] Most of the existing vibration sensors are installed by bonding, magnetism and bolts. Among them, the adhesive bonding method is a one-time fixing method, and the adhesive affects the appearance of the equipment; the magnetic installation method has poor reliability, and it is easy to fall when the equipment vibrates or shakes violently, and the installation is not stable enough; and the bolt connection requires opening a mounting hole on the equipment. On the one hand, it is necessary to open the hole on site, which will cause irreversible damage to the equipment, and on the other hand, the installation efficiency is low. Summary of the invention

[0005] In order to solve the above technical problems, the utility model provides a mining vibration sensor with high stability and adaptability.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A mining vibration sensor comprises a vibration sensor body and a mounting seat; the mounting seat comprises a cylindrical body, an end seat is arranged at the upper end of the cylindrical body, and a threaded mounting portion is arranged at the lower end;

[0008] The cylindrical body is provided with more than three first guide slots, each of which is slidably installed with a first guide slider, each of which is connected with a first damping block through a corresponding parallel link mechanism, the top of the first damping block is slidably installed on the bottom side of the end seat, and the first guide slider slides upward to drive the first damping block to extend outward along the bottom side of the end seat;

[0009] The threaded mounting portion is threadedly mounted with a driving ring, an annular limiting sliding groove is provided on the upper side of the driving ring, and each of the first guide sliders is provided with a limiting slider adapted to the annular limiting sliding groove;

[0010] A magnetic suction cup is installed inside the upper side of the end seat, and the magnetic suction cup is provided with a matching hole arranged concentrically with the cylindrical body;

[0011] The vibration sensor body is installed inside the cylindrical body through threaded connection.

[0012] Preferably, a non-magnetic protective cover adapted to the vibration sensor body is installed inside the matching hole of the magnet suction cup to isolate the magnetization influence of the magnet suction cup on the vibration sensor body.

[0013] Preferably, the non-magnetic protective sleeve, the cylindrical body and the vibration sensor body are all provided with matching embedding grooves, and a matching second damping block is fitted and embedded in the embedding groove.

[0014] Preferably, a second guide slot is provided on the bottom side of the end seat, and a second guide sliding block adapted to the second guide slot is provided on the top of the first damping block.

[0015] Preferably, the first guide slider and the limit slider are separately arranged and connected by a threaded fixing piece.

[0016] Preferably, the first guide slider and the slide seat are detachably connected via a threaded fixing member, and the limiting slider is arranged on the bottom side of the slide seat.

[0017] Preferably, the first damping block expands outwards or contracts inwards with the central axis of the cylindrical body as the center.

[0018] Preferably, the outer diameter of the threaded mounting portion is smaller than the outer diameter of the cylindrical body, and the depth of the first guide groove is equal to the difference between the outer diameters of the cylindrical body and the threaded mounting portion;

[0019] An inner limiting sliding groove is also provided on the side wall inside the first guiding sliding groove.

[0020] The utility model includes but is not limited to the following beneficial effects:

[0021] The utility model realizes preliminary magnetic fixation through a magnetic suction cup, and then realizes mechanical extrusion fixation through an expandable first damping block. The double fixing mechanism greatly improves the installation stability of the sensor. Moreover, the utility model combines the magnetic suction cup and mechanical expansion and extrusion fixation, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the partial structure of the bacterial inoculation gun.

[0024] The reference numerals involved in the accompanying drawings are:

[0025] 1. Mounting seat; 11. End seat; 111. Second guide slot; 12. Threaded mounting portion; 13. First guide slot; 131. Internal limit slot; 14. Internal thread; 2. First damping block; 21. First guide slider; 22. Parallel linkage mechanism; 23. Drive ring; 231. Annular limit slot; 24. Slide; 241. Limit slider; 25. Second guide slider; 3. Magnetic suction cup; 4. Non-magnetic protective cover; 41. Embedded slot; 5. Second damping block; 6. Vibration sensor body. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 to Figure 2 A mining vibration sensor is shown, comprising a vibration sensor body 6 and a mounting seat 1; the mounting seat 1 comprises a cylindrical body, an end seat 11 is arranged at the upper end of the cylindrical body, and a threaded mounting portion 12 is arranged at the lower end;

[0028] The cylindrical body is provided with more than three first guide slots 13, each of which is slidably installed with a first guide slider 21, each of which is connected with a first damping block 2 through a corresponding parallel link mechanism 22, the top of the first damping block 2 is slidably installed on the bottom side of the end seat 11, and the first guide slider 21 slides upward to drive the first damping block 2 to extend outward along the bottom side of the end seat 11;

[0029] Preferably, the first damping block 2 may include a base and a damping body, and the damping body may be detachably fixed on the base by a threaded fastener to facilitate replacement, or to facilitate installation of damping bodies of different specifications to meet the requirements of different scenarios.

[0030] The threaded mounting portion 12 is threadedly mounted with a driving ring 23, an annular limiting sliding groove 231 is provided on the upper side of the driving ring 23, and each of the first guide sliders 21 is provided with a limiting slider 241 adapted to the annular limiting sliding groove 231;

[0031] A magnetic suction cup 3 is installed inside the upper side of the end seat 11, and the magnetic suction cup 3 is provided with a matching hole arranged concentrically with the cylindrical body;

[0032] The vibration sensor body 6 is installed on the inner side of the cylindrical body through threaded connection, and the inner side of the cylindrical body is provided with an adaptive internal thread 14.

[0033] A non-magnetic protective cover 4 adapted to the vibration sensor body 6 is installed inside the matching hole of the magnetic chuck 3, which is used to isolate the magnetization effect of the magnetic chuck 3 on the vibration sensor body 6 and prevent the sensor performance from being disturbed by the magnetic field. The material of the non-magnetic protective cover 4 can be copper or copper alloy, which has good electrical conductivity and corrosion resistance, and is a non-magnetic material, suitable for the magnetic field isolation combination of this application.

[0034] The non-magnetic protective cover 4, the cylindrical body and the vibration sensor body 6 are all provided with an adapted embedding groove 41, and an adapted second damping block 5 is embedded and installed in the embedding groove 41. The second damping block 5 is mainly used to embed and limit the threaded connection between the vibration sensor body 6 and the inner side of the cylindrical body. The second damping block 5 can not only limit the position but also absorb part of the vibration, avoid the relative movement between the two due to vibration, and enhance the stability of the installation of the vibration sensor body 6.

[0035] The first damping block 2 may be made of rubber or high molecular plastic material, which has good elasticity and energy absorption capacity and is suitable for a wide temperature range.

[0036] The second damping block 5 may be made of copper, aluminum, stainless steel, etc., and may be designed as a sheet or ring with a specific shape and thickness to provide rigid positioning and a certain degree of vibration absorption.

[0037] A second guide slot 111 is formed at the bottom of the end seat 11 , and a second guide sliding block 25 adapted to the second guide slot 111 is disposed at the top of the first damping block 2 .

[0038] The first guide slider 21 and the limit slider 241 are separately arranged and connected by a threaded fixing member. Specifically, the first guide slider 21 and the slide seat 24 are detachably connected by a threaded fixing member, and the limit slider 241 is arranged on the bottom side of the slide seat 24.

[0039] The first damping block 2 expands outwards or contracts inwards with the central axis of the cylindrical body as the center to achieve mechanical extrusion fixation and disassembly.

[0040] The outer diameter of the threaded mounting portion 12 is smaller than that of the cylindrical body, and the depth of the first guide slot 13 is equal to the difference between the outer diameters of the cylindrical body and the threaded mounting portion 12 . An inner limiting slot 131 is also provided on the side wall of the first guide slot 13 .

[0041] The installation process of the mining vibration sensor is as follows: first, place one end of the magnetic suction cup 3 into the groove of the bearing cover to achieve magnetic fixation; then screw the drive ring 23, and the drive ring 23 moves along the axial direction of the cylindrical body under the threaded guide action of the threaded mounting portion 12, thereby driving the first guide slider 21 to slide upward through the cooperation of the limit slider 241 and the annular limit slide groove 231, and under the action of the parallel connection mechanism, the first damping block 2 expands outward to achieve mechanical extrusion fixation; so far, combined with magnetic fixation and damping extrusion mechanical fixation, the first damping block 2 can absorb most of the vibration while achieving mechanical extrusion fixation, making the installation of the vibration sensor more stable and reliable. Even if the equipment vibrates or shakes violently, the vibration sensor can also achieve stable vibration monitoring.

[0042] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0043] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mining vibration sensor, comprising a vibration sensor body and a mounting seat; characterized in that: The mounting seat comprises a cylindrical body, the upper end of which is provided with an end seat, and the lower end of which is provided with a threaded mounting portion; The cylindrical body is provided with more than three first guide slots, each of which is slidably installed with a first guide slider, each of which is connected with a first damping block through a corresponding parallel link mechanism, the top of the first damping block is slidably installed on the bottom side of the end seat, and the first guide slider slides upward to drive the first damping block to extend outward along the bottom side of the end seat; The threaded mounting portion is threadedly mounted with a driving ring, an annular limiting sliding groove is provided on the upper side of the driving ring, and each of the first guide sliders is provided with a limiting slider adapted to the annular limiting sliding groove; A magnetic suction cup is installed inside the upper side of the end seat, and the magnetic suction cup is provided with a matching hole arranged concentrically with the cylindrical body; The vibration sensor body is installed inside the cylindrical body through threaded connection.

2. The mining vibration sensor according to claim 1, characterized in that: A non-magnetic protective cover adapted to the vibration sensor body is installed inside the matching hole of the magnet suction cup, so as to isolate the magnetization influence of the magnet suction cup on the vibration sensor body.

3. The mining vibration sensor according to claim 2, characterized in that: The non-magnetic protective sleeve, the cylindrical body and the vibration sensor body are all provided with matching embedding grooves, and a matching second damping block is fitted and embedded in the embedding groove.

4. The mining vibration sensor according to claim 1, characterized in that: A second guide slot is provided at the bottom of the end seat, and a second guide sliding block adapted to the second guide slot is provided at the top of the first damping block.

5. The mining vibration sensor according to claim 1, characterized in that: The first guide slider and the limit slider are separately arranged and connected by a threaded fixing piece.

6. The mining vibration sensor according to claim 5, characterized in that: The first guide slider and the slide seat are detachably connected via a threaded fixing piece, and the limiting slider is arranged on the bottom side of the slide seat.

7. The mining vibration sensor according to claim 1, characterized in that: The first damping block expands outwards or contracts inwards with the central axis of the cylindrical body as the center.

8. The mining vibration sensor according to any one of claims 1 to 7, characterized in that: The outer diameter of the threaded mounting portion is smaller than the outer diameter of the cylindrical body, and the depth of the first guide groove is equal to the difference between the outer diameters of the cylindrical body and the threaded mounting portion; An inner limiting sliding groove is also provided on the side wall inside the first guiding sliding groove.

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