CN220866406U - Distributed optical fiber vibration detection device for carrier roller - Google Patents

Abstract

The utility model belongs to the field of bulk cargo conveying mechanical detection equipment, and relates to a distributed optical fiber vibration detection device for carrier rollers, which comprises permanent magnet eccentric blocks and magnetic vibration mechanisms, wherein the permanent magnet eccentric blocks are fixed on the end surfaces of roller shafts of the carrier rollers and move integrally with the carrier rollers, the magnetic vibration mechanisms are arranged below each corresponding carrier roller along optical fibers, bases of the magnetic vibration mechanisms are fixedly connected to a carrier roller frame, the middle parts of the magnetic vibration mechanisms are provided with magnetic shafts, optical fiber installation grooves are formed in the outer sides of the magnetic shafts, and the optical fibers penetrate through the installation grooves. The permanent magnet eccentric block is arranged at the shaft end of the carrier roller and generates attractive force with the magnetic shaft of the magnetic vibration mechanism when the permanent magnet eccentric block rotates downwards along with the carrier roller to drive the optical fiber installation part to move up and down, so that the carrier roller can be rotated into optical fiber vibration under the condition of no contact, and the condition that mechanical failure occurs due to physical damage in other measurement modes is effectively prevented.

Description

Distributed optical fiber vibration detection device for carrier roller

Technical Field

The utility model belongs to the field of bulk cargo conveying mechanical detection equipment, and relates to a distributed optical fiber vibration detection device for a carrier roller.

Background

Idler rollers are a common component in large bulk material conveyor machines, particularly on belt conveyor equipment, and are numerous and prone to damage and failure. The distributed optical fiber vibration sensor has the advantages of electromagnetic interference resistance, flexibility, small volume and the like, can remotely monitor and position the carrier roller along the optical fiber line in real time, and is very suitable for carrier roller monitoring. In the prior art of attempting to monitor the carrier roller motion in real time through a distributed optical fiber vibration sensor, most of the technologies are to monitor the vibration of a carrier roller frame or a carrier roller shaft by directly utilizing the optical fiber vibration sensor, the vibration states are irregular and are easy to interfere with each other, and long-term mechanical vibration easily causes the damage or failure of detection equipment, so that the detection result is inaccurate.

Disclosure of utility model

Therefore, the utility model aims to provide the distributed optical fiber vibration detection device for the carrier roller, which converts the movement of the carrier roller into the vibration of the local optical fiber through the magnetic force action, so that the problem that the measuring equipment is damaged and fails easily during the measurement of mechanical vibration is avoided.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a distributed optical fiber vibration detection device for carrier rollers is installed in a matched mode with a carrier roller frame, a plurality of carrier rollers are arranged on the carrier roller frame, the distributed optical fiber vibration detection device comprises permanent magnet eccentric blocks and magnetic vibration mechanisms, the permanent magnet eccentric blocks are fixed on the shaft end faces of the carrier rollers and move integrally with the carrier rollers, the magnetic vibration mechanisms are arranged below each corresponding carrier roller along optical fibers, each magnetic vibration mechanism comprises a base fixedly connected to the carrier roller frame, a magnetic shaft is arranged in the middle of the magnetic vibration mechanism, the outer sides of the magnetic shafts are used for fixing optical fiber installation grooves, and the optical fibers penetrate through the optical fiber installation grooves.

Optionally, the permanent magnet eccentric blocks are mounted on the end face of the shaft of the carrier roller through welding or bonding or hinging.

Optionally, a round hole is arranged on the base of the magnetic vibration mechanism, and the diameter of the round hole is larger than that of the magnetic shaft and smaller than that of the optical fiber mounting groove.

Optionally, a vibration damping material is arranged between the optical fiber mounting groove and the base.

Alternatively, the magnetic axis and the magnetic pole of the permanent magnet eccentric block are the same or different.

Optionally, the optical fibers are continuously arranged along the running direction of the tape machine in a full length mode.

The utility model has the beneficial effects that: according to the distributed optical fiber vibration detection device for the carrier roller, the permanent magnet eccentric block is arranged at the shaft end of the carrier roller and generates attractive force with the magnetic shaft of the magnetic vibration mechanism when the permanent magnet eccentric block rotates to the lower side along with the carrier roller, so that the optical fiber installation part is driven to move up and down, the carrier roller can be rotated and converted into optical fiber vibration under the condition of no contact, and the condition that mechanical failure occurs due to physical damage in other measurement modes is effectively prevented.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the overall installation of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model.

Reference numerals: the device comprises a base 1, an optical fiber vibration sensor 2, a magnetic shaft 3, an optical fiber mounting groove 4, a vibration damping material 5, a permanent magnet eccentric block 6, a carrier roller frame 7, a carrier roller 8 and a magnetic vibration mechanism 9.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present utility model by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the utility model; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present utility model and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present utility model, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-3, the distributed optical fiber vibration detection device for the carrier roller comprises a permanent magnet eccentric block 6 and a magnetic vibration mechanism 9, wherein the permanent magnet eccentric block 6 is fixed on the end face of a shaft of the carrier roller 8, and when the carrier roller 8 moves normally, the permanent magnet eccentric block 6 rotates along with the carrier roller 8 and periodically passes over the magnetic vibration mechanism 9; the magnetic vibration mechanism 9 is arranged below each corresponding carrier roller 8 along the optical fibers, the base 1 of the magnetic vibration mechanism 9 is fixedly connected to the carrier roller frame 7, the magnetic shaft 3 is arranged in the middle of the magnetic vibration mechanism, the magnetic poles of the magnetic shaft 3 and the permanent magnet eccentric block 6 are different, attractive force is generated to drive the magnetic shaft 3 to slide upwards, the optical fiber mounting groove 4 is fixed on the outer side of the magnetic shaft 3, the optical fibers pass through the mounting groove, when the magnetic shaft 3 slides, the corresponding position of the optical fiber vibration sensor 2 generates fixed displacement to send vibration signals, and vibration damping materials 5 are arranged between the optical fiber mounting groove 4 and the base 1 to protect the mechanism from damage.

In this embodiment, the permanent magnet eccentric 6 may be welded, hinged or otherwise mounted to the end face of the idler 8.

In this embodiment, a circular hole is provided on the base of the magnetic vibration mechanism 9, the diameter of the circular hole is larger than the diameter of the magnetic shaft 3 and smaller than the diameter of the optical fiber mounting groove 4, and the magnetic shaft 3 can move freely in the vertical direction.

In the present embodiment, the distributed optical cables are arranged in bundles in the optical fiber installation groove 4, and the resolution of the distributed optical fiber sensor to the signal position can be increased.

In this embodiment, a vibration detection device is correspondingly disposed below each carrier roller 8, and the vibration occurrence position can be resolved in real time through the distributed optical fiber vibration sensor, and if the vibration signal frequency is abnormal, the carrier roller movement can be judged to be faulty.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims (6)

1. A distributed optical fiber vibration detection device for a carrier roller is installed in a matched mode with a carrier roller frame, and a plurality of carrier rollers are arranged on the carrier roller frame, and is characterized in that: the device comprises a permanent magnet eccentric block and a magnetic vibration mechanism, wherein the permanent magnet eccentric block is fixed on the shaft end surface of a carrier roller and moves integrally with the carrier roller, the magnetic vibration mechanism is arranged below each corresponding carrier roller along an optical fiber, the magnetic vibration mechanism comprises a base connected and fixed on a carrier roller frame, a magnetic shaft is arranged in the middle, the outer side of the magnetic shaft is used for fixing an optical fiber mounting groove, and the optical fiber passes through the optical fiber mounting groove.

2. A distributed optical fiber vibration detecting device for carrier rollers as claimed in claim 1, wherein: the permanent magnet eccentric blocks are arranged on the end faces of the shafts of the carrier rollers through welding or bonding or hinging.

3. A distributed optical fiber vibration detecting device for carrier rollers as claimed in claim 1, wherein: the magnetic vibration mechanism base is provided with a round hole, and the diameter of the round hole is larger than that of the magnetic shaft and smaller than that of the optical fiber mounting groove.

4. A distributed optical fiber vibration detection apparatus for a carrier roller as claimed in claim 3, wherein: and a vibration damping material is arranged between the optical fiber mounting groove and the base.

5. A distributed optical fiber vibration detection apparatus for a carrier roller as claimed in claim 3, wherein: the magnetic poles of the magnetic shaft and the permanent magnet eccentric block are the same or different.

6. A distributed optical fiber vibration detecting device for carrier rollers as claimed in claim 1, wherein: the optical fibers are continuously and continuously arranged along the running direction of the tape machine.