CN209928996U

CN209928996U - Cable with regional disturbance safety monitoring function

Info

Publication number: CN209928996U
Application number: CN201921001125.0U
Authority: CN
Inventors: 杨文伟
Original assignee: JIANGSU CHANGSHENG CABLE GROUP CO Ltd
Current assignee: JIANGSU CHANGSHENG CABLE GROUP CO Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-01-10
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to the technical field of cables, in particular to a cable with regional disturbance safety monitoring, the outer surface of a conductor is coated with an insulating layer, the edge of the outer side wall of the insulating layer is provided with an insulating groove, a detecting wire with a monitoring function in a monitoring region is arranged in the insulating groove in a stretching way, the outer surface of the insulating layer is coated with a sheath layer, a shielding layer is also coated between the insulating layer and the sheath layer, the detecting wire is 2 detecting wires which are arranged in parallel, the front ends of the detecting wires are connected, the tail ends of the detecting wires are connected with a computer measuring system through a joint, the detecting wires transmit distortion signals generated by the detecting wires in the vibration region points to the computer measuring system to calculate the vibration region points through the detecting wires, and the detecting wire has the super-strong vibration detecting and monitoring function, so that the cable can realize the whole course real-time feedback to the external vibration environment by utilizing the self characteristics, the industrial and mining equipment is always operated in a normal environment, and the normal operation of the whole working system is facilitated.

Description

Cable with regional disturbance safety monitoring function

Technical Field

The utility model belongs to the technical field of the cable technology and specifically relates to a cable that possesses regional disturbance safety monitoring.

Background

In mine holes and engineering sites, early warning can not be obtained before accidents generally occur, and once the accidents occur, the consequence that people hurt equipment is damaged and cannot be picked up occurs in the working site. In most cases, abnormal vibrations occur before a malignant accident occurs, and the vibrations are not easily sensed by people at the rolling site of the machine and are not detected by other sensors.

Even if a whole set of sensing equipment needs to be equipped for realizing vibration detection and multipoint installation is carried out, the structure is complicated, the vibration detection device is easy to damage and interfere and cannot carry out whole-course detection in actual field application, and error signals can be generated in real time due to the sensor.

For the vibration sensing cables symmetrically arranged on both sides of the conductor, because the vibration sensing cables are symmetrically arranged, particularly because the signal cables are twisted, vibration exists but the magnetic flux does not change, so that the possibility of missing report exists.

Therefore, it is highly desirable to provide a cable which has a vibration measuring function, can perform real-time detection in the whole process, and has a stability far higher than that of a sensor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides a can self have the function of measuring vibrations, simultaneously again can whole real-time detection, and stability will be higher than the sensor far away, can solve the real-time whole function of listening that the sensor can not accomplish completely, and the cable that possesses regional disturbance safety monitoring that makes engineering equipment ability safety and stability last normal work.

The utility model provides a technical scheme that its technical problem adopted is: a cable with regional disturbance safety monitoring function comprises a conductor, wherein an insulating layer is coated on the outer surface of the conductor, an insulating groove is formed in the edge of the outer side wall of the insulating layer, 2 parallel detection lines with a monitoring function in a monitoring region are strung in the insulating groove, a sheath layer is coated on the outer surface of the insulating layer, and a shielding layer is further coated between the insulating layer and the sheath layer;

the detection lines are 2 detection lines arranged in parallel, the front ends of the detection lines are connected, the tail ends of the detection lines are connected with a computer measurement system through a connector, the detection lines detect distortion signals generated by the detection lines in vibration region points, and then the distortion signals are transmitted to the computer measurement system through the detection lines to calculate the vibration region points.

Furthermore, in order to improve the accuracy of the distortion signal in the detection line, the detection line is sleeved in the metal serpentine hose.

Furthermore, in order to reduce the influence of an external electromagnetic field on a power supply or a communication line, avoid interference signals from entering an inner conductor to interfere and reduce the loss of transmission signals, and also prevent the line from radiating electromagnetic energy outwards, the shielding layer is a conductive metal wire, a conductive metal strip or a combination of the conductive metal wire and the conductive metal strip.

Furthermore, in order to have light weight, small density, excellent mechanical property, insulating property and heat-insulating property, the sheath layer is made by extruding and wrapping a high polymer material or combining the high polymer material and the wrapping material.

The utility model has the advantages that: the utility model discloses monitoring function is listened in superstrong vibrations for the cable can utilize self characteristic to realize that whole real-time makes the feedback to external vibrations environment, lets industrial and mining equipment work in normal environment all the time, helps whole operating system's normal development.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the position and vibration measurement principle of the detection line in the cable according to the present invention;

FIG. 3 is a schematic diagram of the signal distortion caused by vibration according to the present invention;

fig. 4 is a schematic structural diagram of the magnetic field direction of the present invention.

In the figure: 1. conductor, 2 insulating layer, 3 shielding layer, 4 sheath layer, 5 detection line, 6 insulating groove, A signal distortion.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Example 1:

as shown in fig. 1 ~ 4 a cable that possesses regional disturbance safety monitoring, including conductor 1, the surface cladding of conductor 1 has insulating layer 2, and insulating recess 6 has been seted up to the lateral wall border department of insulating layer 2, stretches tight 2 parallel arrangement in insulating recess 6 and has monitoring function's detection line 5 in the monitoring area, and the parcel has restrictive coating 4 on the surface of insulating layer 2, and it has shielding layer 3 still to clad between insulating layer 2 and restrictive coating 4.

The detection line 5 is sleeved in the metal serpentine hose.

The number of the conductors 1 is 1, the detecting lines 5 are 2 detecting lines arranged in parallel, the front ends of the detecting lines 5 are connected, the tail ends of the detecting lines are connected with a computer measuring system through connectors, the detecting lines 5 detect distortion signals generated by the detecting lines 5 in vibration region points, and then the detecting lines 5 transmit the distortion signals to the computer measuring system to calculate the vibration region points.

The shielding layer 3 is a conductive metal wire, a conductive metal tape, or a combination of both.

The sheath layer 4 is made by extruding and wrapping polymer materials or combining the polymer materials and the wrapping polymer materials.

Specifically, as shown in fig. 4, when the cable is powered on, a magnetic field is generated, and the direction of the magnetic field is determined according to the right-hand rule, as shown in fig. 2, the shaded coil in fig. 2 is under the magnetic flux condition in the magnetic field, the detection line 5 is suspended in the insulation groove 6, two ends of the detection line 5 are properly tensioned through a tension device, the front end of the detection line 5 is connected to form a closed circuit, and the tail end of the detection line is connected into a computer measurement system through a connector. The detection line 5 is in the electromagnetic field, when external vibration affects the detection line 5, the detection line 5 pair can deform in the electromagnetic field, thereby affecting the signal transmitted in the detection line 5, the signal map can calculate the deformation path of the detection line 5, the vibration location can be known, and the vibration strength can be known through the waveform change degree. The pulse signal is continuously transmitted in the detection line 5, the receiver receives the signal for processing, and when the signal distortion occurs, as shown in fig. 3, the signal distortion is at a position.

When some vibration phenomenon occurs around, the magnetic flux surrounded by the detection line 5 will change, so that an induced current appears in the detection line 5, and the reflection of the high frequency wave is affected.

The signal waveform is distorted, an echo is reflected at a deformation point of the detection line 5, and the length L from an end point is obtained by calculation after the echo is received by the oscilloscope, wherein the L is v t/2, v is the wave velocity, and t is the reflection time. The corresponding vibration region points are known from L on the cable arrangement map by the cable arrangement map, which may be arranged in a straight line, may be rectangular or other shape, keeping the cable clear and detecting the tension of the line.

Example 2:

specifically under the more operating mode of crooked condition, artifical vibrations regional point test of carrying out in advance on the cable of different positions, record and strike waveform and this position distance, the test ripple after the completion is used for confirming the regional point of vibrations of later stage to signal distortion to detect the means that line 5 brought the signal transmission error after correcting the cable laying.

Meanwhile, in

embodiments

1 and 2, the detection line 5 can also be arranged in the metal serpentine hose, so that the accuracy of signal transmission of the detection line 5 is improved.

By last, this application can utilize self characteristic to realize whole real-time feedback to external vibrations environment, can whole real-time detection again simultaneously, and stability will be higher than the sensor far away, can solve the sensor and can not accomplish whole function of listening in real time completely, makes engineering equipment ability safety and stability last normal work, lets industrial and mining equipment work in normal environment all the time, helps whole operating system's normal development. While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A cable with regional disturbance safety monitoring, comprising a conductor (1), characterized in that: the outer surface of the conductor (1) is coated with an insulating layer (2), the edge of the outer side wall of the insulating layer (2) is provided with an insulating groove (6), 2 parallel detection lines (5) with a monitoring function in a monitoring area are strung in the insulating groove (6), the outer surface of the insulating layer (2) is coated with a sheath layer (4), and a shielding layer (3) is also coated between the insulating layer (2) and the sheath layer (4);

the front ends of the detection lines (5) are connected, the tail ends of the detection lines are connected with a computer measuring system through joints, the detection lines (5) detect distortion signals generated by the detection lines (5) in vibration region points, and then the detection lines (5) transmit the distortion signals to the computer measuring system to calculate the vibration region points.

2. The cable with regional disturbance safety monitoring of claim 1, wherein: the detection line (5) is sleeved in the metal serpentine hose.

3. The cable with regional disturbance safety monitoring of claim 1, wherein: the shielding layer (3) is a conductive metal wire, a conductive metal belt or a combination of the conductive metal wire and the conductive metal belt.

4. The cable with regional disturbance safety monitoring of claim 1, wherein: the sheath layer (4) is made by extruding and wrapping a high polymer material or combining the high polymer material and the wrapping material.