CN212503516U - Intelligent flaw detection device for steel wire rope of elevator - Google Patents
Intelligent flaw detection device for steel wire rope of elevator Download PDFInfo
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- CN212503516U CN212503516U CN202020239969.5U CN202020239969U CN212503516U CN 212503516 U CN212503516 U CN 212503516U CN 202020239969 U CN202020239969 U CN 202020239969U CN 212503516 U CN212503516 U CN 212503516U
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- wire rope
- elevator
- flaw detection
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Abstract
The utility model discloses an intelligence elevator wire rope detection device that detects a flaw belongs to special equipment detection technology field, including detecting a flaw sensor, speed encoder, main control board and computer, the application detects a flaw sensor and detects, if the magnetic flux increase has just represented the broken silk, and the broken silk is more, and the magnetic flux is big more. The elevator steel wire rope can be driven to rotate when moving, so that the running time and distance curve of the elevator steel wire rope is obtained, whether a guide rail support exists or not is further judged, the time of the first photoelectric switch passing through the guide rail support can be obtained through the time node of the change of the detection signal, the specific position of broken wires can be known by combining a flaw detection sensor, the distance and magnetic flux curve of each elevator steel wire rope is displayed, the analysis result indicates the position and the number of the broken wire points, and whether the judgment is qualified or not is judged. Not only has simple structure, convenient use and convenient carrying; and can detect many elevator wire rope simultaneously, improve detection efficiency, in addition, the testing result degree of accuracy is high.
Description
Technical Field
The utility model relates to a special equipment detects technical field, more specifically relates to an intelligence elevator wire rope detection device that detects a flaw.
Background
In the long-term operation process of the elevator, the steel wire rope is inevitably worn and rusted, and the safety coefficient is reduced after the steel wire rope is worn.
The steel wire rope is used as a main bearing component of the elevator, and is maintained, detected and replaced only by manual visual inspection at present. Therefore, scientific basis and persuasion are lacked, and in addition to time and labor consumption, huge safety risks exist during steel wire rope detection.
In the long-term operation process of the elevator, the steel wire rope is inevitably worn and broken, and the safety coefficient is reduced after the steel wire rope is worn and broken. As the main bearing assembly of the elevator, the detection method mainly is manual detection (visual inspection, pull gauge) and regular replacement, etc. at present, the method has large human error and low detection efficiency, and then equipment for detecting a single steel wire rope is provided, so that two problems exist: the first is that the equipment is too large and inconvenient to carry; secondly, only a single steel wire rope can be detected, and a plurality of steel wire ropes of the elevator need to spend a large amount of time for testing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an intelligent flaw detection device for the steel wire rope of the elevator, which has simple structure, convenient use and convenient carrying; and a plurality of steel wire ropes can be detected simultaneously, the detection time is saved, the detection efficiency is improved, and in addition, the detection result accuracy is high.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides an intelligence elevator wire rope detection device that detects a flaw, is provided with including detecting a flaw sensor, speed encoder, main control board and computer on the elevator wire rope the sensor of detecting a flaw, speed encoder is near elevator wire rope, detect a flaw sensor and speed encoder all with main control board electric connection, the computer is received the data of main control board and processing show to the display on.
Further, the flaw detection sensor comprises a flaw detection sensor for simultaneously detecting 1-10 elevator steel wire ropes.
Further, the computer comprises a host and a display, a lithium battery is installed on the inner side of the box body of the host, and the lithium battery is electrically connected with the main control board.
Furthermore, a power switch is arranged on the main control board, and the main control board is electrically connected with the lithium battery through the power switch.
Furthermore, a sensor interface and a network cable interface are arranged on the main control board, and the main control board is connected with the flaw detection sensor and the network cable through the sensor interface and the network cable interface respectively.
The utility model has the advantages that:
the utility model discloses based on detect a flaw sensor, speed encoder, computer and main control board etc. the sensor of detecting a flaw carries elevator wire rope, when elevator wire rope is through detecting a flaw the sensor: if the magnetic flux passing through the elevator steel wire rope is increased, the broken wire of the elevator steel wire rope is represented, and the more the broken wire is, the larger the magnetic flux is. The speed encoder is tightly arranged on the same structure as the flaw detection sensor, the speed encoder is close to the elevator steel wire rope, the elevator steel wire rope can drive the speed encoder to rotate when moving, so that the running time and distance curve of the elevator steel wire rope can be obtained, whether a guide rail support exists or not can be further judged, the time of the first photoelectric switch passing through the guide rail support can be obtained through the time node of the change of the detection signal, and the specific position of a broken wire can be known by combining the flaw detection sensor. After the measurement is finished, the distance and magnetic flux curve of each elevator steel wire rope is displayed, and a wire breaking point is identified. And finally, analyzing the result, indicating the positions and the number of the broken filament points, and judging whether the broken filament points are qualified.
The utility model has the advantages of as follows: the device has the advantages of simple structure, convenient use and portability; and can detect many elevator wire rope simultaneously, save check-out time and improve detection efficiency, in addition, the testing result degree of accuracy is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the installation of an intelligent elevator wire rope flaw detection device;
fig. 2 is a schematic cross-sectional structure of an elevator rope;
fig. 3 is a detection flow chart of the intelligent elevator steel wire rope flaw detection device.
In the figure, 1-flaw detection sensor, 2-speed encoder, 3-main control board, 4-computer, 5-lithium battery, 6-power switch and 7-elevator steel wire rope.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description. Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Before describing the embodiments, some necessary terms need to be explained. For example:
if the terms "first," "second," etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a "first" element discussed below could also be termed a "second" element without departing from the teachings of the present invention. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.
The various terms appearing in this application are used for the purpose of describing particular embodiments only and are not intended as limitations on the invention, except where the context clearly dictates otherwise, the singular is intended to include the plural as well.
When the terms "comprises" and/or "comprising" are used in this specification, these terms are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence and/or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As shown in fig. 1, an intelligent elevator wire rope flaw detection device comprises a flaw detection sensor 1, a speed encoder 2, a main control board 3 and a computer 4, wherein the flaw detection sensor 1 is arranged on an elevator wire rope 7, the speed encoder 2 is close to the elevator wire rope 7, the flaw detection sensor 1 and the speed encoder 2 are both electrically connected with the main control board 3, and the computer 4 receives data of the main control board 3 and processes and displays the data on a display.
Further, the flaw detection sensor 1 comprises a flaw detection sensor 1 for simultaneously detecting 1-10 elevator steel wire ropes 7.
Further, computer 4 includes host computer and display, lithium cell 5 is installed to the box inboard of host computer, lithium cell 5 with main control board 3 electricity is connected.
Further, a power switch 6 is arranged on the main control board, and the main control board 3 is electrically connected with the lithium battery 5 through the power switch 6.
Further, a sensor interface and a network cable interface are arranged on the main control board 3, and the main control board 3 is connected with the flaw detection sensor 1 and the network cable through the sensor interface and the network cable interface respectively.
As shown in fig. 3, those skilled in the art can implement the present invention as an intelligent elevator wire rope flaw detection device, the flaw detection sensor 1 is used to detect the condition of the elevator wire rope 7, obtain the electrical signal of the magnetic flux change, the speed encoder 2 is used to detect the speed of the elevator wire rope 7 during the operation of the elevator, and the movement condition of the elevator wire rope 7 can be calculated by the speed and time, wherein, including the speed and the displacement, the position of the wire breaking point of the elevator wire rope 7 can be calculated by combining the signal of the flaw detection sensor 1, thereby obtaining the installation quality condition, which is convenient for viewing and maintaining. The main control board 3 pre-stores the algorithm information and the running program, processes the signal through the main control board 3 and then sends the signal to the computer 4 for processing.
Specifically, as shown in fig. 2, after the elevator rope 7 is magnetized, a main leakage magnetic field Hz and a local leakage magnetic field H1 occur around the elevator rope 7, that is: a local leakage magnetic field H1 due to wire breakage, a local leakage magnetic field H2 due to wire breakage, and the like. In addition, the magnetic field generated by the geographical conditions and the environment affects the magnetic field of the elevator rope 7 to a different degree. The fact that defects in the interior and the surface of the elevator rope 7 are determined by detecting the magnetic field distribution around the elevator rope 7 has been recognized and experimentally confirmed. The damage area deltas can be determined by taking a loop on the wire rope and detecting the magnetic flux density B or the magnetic field strength H over the loop area, as shown in the following formula.
B＝μH
In air and vacuum, μ ═ 1, then: h ═ B
H∞ΔS
ΔS＝∫∫H(x,y)dxdy
ΔSmax＝0→2π
ΔSmin＝0→0
In the above formula, the double integral is changed into the second integral, and the function is solved by using polar coordinates, so that the function is inconvenient for microcomputer processing and must be converted into a fast mathematical model convenient for microcomputer processing.
N flaw detection sensors 1 are assembled on the annular belt to form a mode identification type annular sensor group, so that not only can the physical quantity of the field intensity of a certain point be identified, but also the spatial position of the flaw detection point of the elevator steel wire rope 7 can be identified. The area deltas of the damaged point of the elevator steel wire rope 7 becomes a function of the field intensity, and the damaged quantity deltas 0 of the cross-section area of the elevator steel wire rope 7 is the integral of each point:
then: the total damage amount in one bank distance is as follows:
experiments and practices prove that the mathematical model established by the equipment is completely correct. By adjusting the specific inverse coefficient A and the calibration constant C, the weight can be changed arbitrarily by the detection data such as a pound scale. For example, breaking 1 filament shows printing 1 filament. A broken 10 filament may also indicate a broken 10 filament.
The utility model discloses based on sensor 1, speed encoder 2, computer 4 and main control board 3 etc. of detecting a flaw, sensor 1 of detecting a flaw carries elevator wire rope 7, when elevator wire rope 7 through detecting a flaw sensor 1: if the magnetic flux passing through the elevator steel wire rope 7 is increased, the broken wire of the elevator steel wire rope 7 is represented, and the more the broken wire is, the larger the magnetic flux is. The speed encoder 2 is tightly arranged on the same structure as the flaw detection sensor 1, the speed encoder 2 is close to the elevator steel wire rope 7, the elevator steel wire rope 7 can drive the speed encoder 2 to rotate when moving, so that the running time and distance curve of the elevator steel wire rope 7 can be obtained, whether a guide rail support exists or not can be further judged, the time when the first photoelectric switch passes through the guide rail support can be obtained through the time node for detecting the change of the signal, and the specific position of a broken wire can be known by combining the flaw detection sensor 1. After the measurement is finished, the distance and flux curve of each elevator rope 7 is displayed, and the breaking point is identified. And finally, analyzing the result, indicating the positions and the number of the broken filament points, and judging whether the broken filament points are qualified.
The utility model has the advantages of as follows: the device has the advantages of simple structure, convenient use and portability; and can detect many elevator wire rope 7 simultaneously, save check-out time and improve detection efficiency, in addition, the testing result degree of accuracy is high.
In other technical features in this embodiment, those skilled in the art can flexibly select the technical features according to actual situations to meet different specific actual requirements. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known components, structures or parts are not described in detail in order to avoid obscuring the present invention, and the technical scope of the present invention is defined by the claims.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are used in a generic sense as is understood by those skilled in the art. For example, the components may be fixedly connected, movably connected, integrally connected, or partially connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected inside two elements, and the like, and for those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations, that is, the expression of the language and the implementation of the actual technology can flexibly correspond, and the expression of the language (including the drawings) of the specification of the present invention does not constitute any single restrictive interpretation of the claims.
Modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, which should be limited only by the claims appended hereto. In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the invention. In other instances, well-known techniques, such as specific construction details, operating conditions, and other technical conditions, have not been described in detail in order to avoid obscuring the present invention.
Claims (5)
1. The utility model provides an intelligence elevator wire rope detection device that detects a flaw which characterized in that: including flaw detection sensor (1), speed encoder (2), main control board (3) and computer (4), be provided with on elevator wire rope (7) flaw detection sensor (1), speed encoder (2) are close to elevator wire rope (7), flaw detection sensor (1) and speed encoder (2) all with main control board (3) electric connection, computer (4) are received the data of main control board (3) and are handled and show to the display on.
2. The intelligent elevator wire rope flaw detection device according to claim 1, characterized in that: the flaw detection sensor (1) comprises a flaw detection sensor (1) for simultaneously detecting 1-10 elevator steel wire ropes (7).
3. The intelligent elevator wire rope flaw detection device according to claim 1, characterized in that: computer (4) include host computer and display, lithium cell (5) are installed to the box inboard of host computer, lithium cell (5) with main control board (3) electricity is connected.
4. The intelligent elevator wire rope flaw detection device according to claim 3, characterized in that: the lithium battery pack is characterized in that a power switch (6) is arranged on the main control board, and the main control board (3) is electrically connected with the lithium battery (5) through the power switch (6).
5. The intelligent elevator wire rope flaw detection device according to claim 1, characterized in that: the main control board (3) is provided with a sensor interface and a network cable interface, and the main control board (3) is connected with the flaw detection sensor (1) and the network cable through the sensor interface and the network cable interface respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020239969.5U CN212503516U (en) | 2020-03-02 | 2020-03-02 | Intelligent flaw detection device for steel wire rope of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020239969.5U CN212503516U (en) | 2020-03-02 | 2020-03-02 | Intelligent flaw detection device for steel wire rope of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212503516U true CN212503516U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020239969.5U Active CN212503516U (en) | 2020-03-02 | 2020-03-02 | Intelligent flaw detection device for steel wire rope of elevator |
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| CN (1) | CN212503516U (en) |
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- 2020-03-02 CN CN202020239969.5U patent/CN212503516U/en active Active
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