CN210914876U - Elevator wire rope diameter abnormal point on-line measuring system - Google Patents
Elevator wire rope diameter abnormal point on-line measuring system Download PDFInfo
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- CN210914876U CN210914876U CN201921401467.1U CN201921401467U CN210914876U CN 210914876 U CN210914876 U CN 210914876U CN 201921401467 U CN201921401467 U CN 201921401467U CN 210914876 U CN210914876 U CN 210914876U
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Abstract
The utility model relates to an elevator wire rope diameter anomaly point on-line measuring system, include: the device comprises a diameter measuring device, a position measuring device, an A/D conversion module, a pulse counting module and a computer, wherein the diameter measuring device is sleeved on the elevator steel wire rope, and the position measuring device is arranged to be tightly attached to the elevator steel wire rope; the A/D conversion module is connected with the diameter measuring device, and the pulse counting module is connected with the position measuring device; and the computer is respectively connected with the A/D conversion module and the pulse counting module and is used for receiving and processing diameter measurement data and position measurement data and positioning abnormal points of the diameter of the steel wire rope of the elevator. The utility model discloses can carry out the synchronous on-line measuring of full thread to wire rope's diameter and find out the finest danger point of diameter fast and fix a position, improve the efficiency of wire rope group diameter inspection and the accuracy of test.
Description
Technical Field
The utility model belongs to elevator inspection detection area, concretely relates to elevator wire rope diameter anomaly point on-line measuring system.
Background
The vertical traction elevator generally drives a wire rope to lift passengers or goods by rotating a traction sheave or a friction sheave. In the long-term running process of the elevator, the diameter of the steel wire rope is reduced due to corrosion caused by a damp environment of a shaft or mutual friction between the steel wire rope and a traction sheave of the elevator. The diameter of the steel wire rope is reduced, so that the service life of the steel wire rope and the service life of an elevator traction component are directly influenced, the elevator traction condition is changed, the elevator vibrates, the maximum tensile force borne by the steel wire rope is gradually reduced in the diameter reduction process, even a rope breaking fault is generated, and the life and property safety of passengers is directly threatened. Special equipment safety specification TSG T7001-2009 annex a5.1 specifies: "the diameter of the traction steel wire rope is less than 90% of the nominal diameter and the traction steel wire rope should be discarded", and meanwhile, the specified measurement method is that the measurement is carried out by two points which are at least 1m apart, the measurement is carried out twice in the direction perpendicular to each other at each point, and the average value of four measurement values is the measured diameter of the steel wire rope. The general inspection method is that the part of the elevator which is most easy to wear and thin is selected according to the experience of the inspector, the diameter is tested by using a wide-jaw vernier caliper, and four data points are tested for each steel wire rope according to the inspection gauge requirement. The method has certain randomness in selecting the measuring position, particularly for part of high-rise buildings, the length of a steel wire rope can reach hundreds of meters, the position with the largest diameter thinning degree is the most dangerous position, the efficiency is low by adopting a manual measuring method, and the dangerous point can be ignored.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provided an elevator wire rope diameter anomaly point on-line measuring system, utilize this system can carry out the synchronous on-line measuring of full thread and find out the finest danger point of diameter fast to all wire rope's diameter in the wire rope group, fix a position the diameter danger point, improved the efficiency of wire rope group diameter inspection and the accuracy of test, have important meaning to improving inspection process automation level.
For solving one of above-mentioned technical problem at least, the utility model discloses the technical scheme who takes is:
an elevator wire rope diameter abnormal point on-line measuring system includes: the device comprises a diameter measuring device, a position measuring device, an A/D conversion module, a pulse counting module and a computer, wherein the diameter measuring device is sleeved on the elevator steel wire rope, and the position measuring device is arranged to be tightly attached to the elevator steel wire rope; the A/D conversion module is connected with the diameter measuring device, and the pulse counting module is connected with the position measuring device; and the computer is respectively connected with the A/D conversion module and the pulse counting module and is used for receiving and processing diameter measurement data and position measurement data and positioning abnormal points of the diameter of the steel wire rope of the elevator.
Further, the diameter measuring device has at least one diameter measuring unit including: the elevator steel wire rope displacement measuring device comprises a main body and a displacement measuring assembly, wherein the main body is provided with a through hole which is used for being sleeved on the elevator steel wire rope, and the through hole is provided with a first steel wire rope limiting surface and a second steel wire rope limiting surface which are perpendicular to each other; the first displacement measuring assembly and the second displacement measuring assembly are perpendicular to each other and arranged on the main body, the first displacement measuring assembly and the first steel wire rope limiting face are arranged in an opposite mode and used for limiting the X axial direction of the elevator steel wire rope and measuring the X axial diameter, and the second displacement measuring assembly and the second steel wire rope limiting face are arranged in an opposite mode and used for limiting the Y axial direction of the elevator steel wire rope and measuring the Y axial diameter.
Further, the body includes: the first main part and the second main part are spliced to form the through hole, the first displacement measuring assembly is arranged in the mounting hole formed in the first main part, the first steel wire rope limiting surface is located on the second main part, the second displacement measuring assembly is arranged in the mounting hole formed in the second main part, and the second steel wire rope limiting surface is located on the first main part.
Further, the displacement measuring assembly includes: the elevator wire rope limiting device comprises a displacement sensor, a limiting block and a spring, wherein the displacement sensor is arranged in the mounting hole, the mounting hole is communicated with the through hole through a sliding groove formed in the bottom of the mounting hole, a measuring rod of the displacement sensor is connected with the A/D conversion module, the limiting block is connected with the measuring rod, the limiting block can slide in the sliding groove and extends into the through hole to limit the elevator wire rope, and two ends of the spring are respectively connected with the displacement sensor and the limiting block.
Further, the diameter measuring device further includes: and the locking element is used for splicing and locking the first body and the second body.
Further, the position measurement apparatus includes: the speed measuring roller is used for being tightly attached to the elevator steel wire rope, and the rotary encoder is coaxially arranged with the speed measuring roller and connected with the pulse counting module and is used for collecting the moving distance of the elevator steel wire rope.
Further, the method also comprises the following steps: the display screen and the alarm are respectively connected with the computer, and the display screen displays the diameters of the elevator steel wire rope in two directions perpendicular to each other at different positions in a text or curve mode.
Further, the displacement measuring assembly further comprises: and the measuring and calibrating rod is arranged in the through hole.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1) the diameters of a plurality of steel wire ropes in the elevator steel wire rope group can be measured simultaneously, and each steel wire rope can measure the diameters in two vertical directions simultaneously;
2) the moving distance of the steel wire rope in the test process is recorded by using a position measuring device while the diameter of the steel wire rope is tested, and the position of the diameter finest point of each steel wire rope can be found by analyzing the diameter data and the position data by a computer, so that the function of positioning the abnormal point is realized;
3) the measuring accuracy is improved by arranging the measuring calibration rod, so that the measuring result is more accurate; meanwhile, data are displayed and stored in a real-time curve mode in the testing process, the diameter and the position of the abnormal point of the steel wire rope are automatically analyzed, the automation degree is high, and the testing efficiency is high.
Drawings
Fig. 1 is a block diagram of the system structure of the present invention.
Fig. 2 is a sectional view of the diameter measuring device of the present invention.
Fig. 3 is a schematic view of the mounting structure of fig. 2.
Fig. 4 is a sectional view of the diameter measuring unit structure of the present invention.
Fig. 5 is a diagram illustrating the process of measuring the X axial diameter of the steel wire rope according to the first embodiment of the present invention.
Fig. 6 is a diagram illustrating a process of measuring the diameter of a wire rope according to a second embodiment of the present invention.
Fig. 7 is a structural diagram of the position measuring device of the present invention.
Fig. 8 is a schematic view of the system installation structure of the present invention.
In the above figures: a first body 1; a second body 2; a through hole 3; a first wire rope limiting surface 4; a second wire rope limiting surface 5; a displacement sensor 6; a measuring rod 7; a limiting block 8; a spring 9; a mounting hole 10; a chute 11; an elevator rope 12; a position measuring device 13; a rotary encoder 131; a speed measuring roller 132; a steel wire rope group 14 to be tested; a traction sheave 15; a car 16; a machine room floor 17; a measurement calibration bar 18; a diameter measuring device 19.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following specific embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.
The utility model provides an elevator wire rope diameter anomaly point on-line measuring system, fig. 1 does the utility model discloses the system architecture block diagram, it is shown with reference to fig. 1, the utility model discloses the system mainly includes: the device comprises a diameter measuring device, a position measuring device, an A/D conversion module, a pulse counting module, a computer, a display screen and an alarm, wherein the A/D conversion module is connected with the diameter measuring device, and the pulse counting module is connected with the position measuring device; the computer is respectively connected with the A/D conversion module and the pulse counting module and used for receiving and processing diameter measurement data and position measurement data and positioning abnormal points of the diameter of the elevator steel wire rope, and the display screen and the alarm are respectively connected with the computer.
Referring to fig. 1, it is assumed that there are n steel cables in the steel cable group to be tested, and the n steel cables are respectively: 1# wire rope, 2# wire rope … … n # wire rope, diameter measurement unit in the diameter measurement device is n, and every diameter measurement unit includes two displacement sensor, and every wire rope in the elevator wire rope group is measured by two displacement sensor in every diameter measurement unit during the test, specifically: and measuring the 1# steel wire rope as a displacement sensor X1 and a displacement sensor Y1, and measuring the 2# steel wire rope as a displacement sensor X2 and a displacement sensor Y2 until measuring the n # steel wire rope as a displacement sensor Xn and a displacement sensor Yn. Use nth wire rope as an example, measure wire rope X axial and two vertical direction's of Y axial diameter respectively with displacement sensor Xn (the displacement sensor in the first displacement measurement subassembly promptly) and displacement sensor Yn (the displacement sensor in the second displacement measurement subassembly promptly), can understand, the quantity of displacement sensor in the diameter measurement device is the twice of the wire rope quantity in the wire rope group that awaits measuring at least.
Fig. 2 is the utility model discloses diameter measurement device structure section view, fig. 3 is the mounting structure schematic diagram of fig. 2, fig. 4 is the utility model discloses diameter measurement unit structure section view. According to this embodiment, it is shown with reference to fig. 2-4, the utility model discloses five elevator wire ropes are selected to the wire rope group that awaits measuring, are respectively: 1# -5# wire rope, it is corresponding, diameter measurement device preferably measures 1# -5# wire rope respectively for five diameter measurement unit, can understand, diameter measurement unit's quantity is decided by the quantity of the elevator wire rope in the wire rope group that awaits measuring.
Specifically, referring to fig. 4, the diameter measuring unit of the present invention includes: the elevator steel wire rope displacement measuring device comprises a first main body, a second main body and two displacement measuring assemblies, wherein the first main body and the second main body are spliced to form a through hole which is used for being sleeved on the elevator steel wire rope, the steel wire rope is arranged in the through hole during assembling, and the elevator steel wire rope can move in the through hole; and the through hole is provided with a first steel wire rope limiting surface and a second steel wire rope limiting surface which are perpendicular to each other.
The two displacement measurement assemblies are arranged perpendicular to each other, and include: first displacement measurement subassembly and second displacement measurement subassembly, first displacement measurement subassembly with the spacing face of first wire rope sets up oppositely, specifically is: the first displacement measuring assembly is arranged in the mounting hole of the first main body, and the first steel wire rope limiting surface is positioned on the second main body and used for limiting the X axial direction of the elevator steel wire rope and measuring the X axial diameter; the second displacement measurement component and the second steel wire rope limiting surface are oppositely arranged, and more specifically: the second displacement measuring assembly is arranged in the mounting hole of the second main body, and the second steel wire rope limiting surface is located on the first main body and used for limiting the Y axial direction of the elevator steel wire rope and measuring the Y axial diameter.
Each of the displacement measuring assemblies includes: displacement sensor, stopper and spring, wherein, displacement sensor sets up in the mounting hole that is equipped with in the main part, just the mounting hole through the spout that its bottom was seted up with the through-hole intercommunication, displacement sensor's measuring stick with the AD conversion module links to each other, the stopper with the measuring stick links to each other, the stopper can slide in the spout and extend to it is right in the through-hole elevator wire rope is spacing, has the spring between displacement sensor and the measuring block, and the spring is the pressure spring, and the displacement sensor measuring stick is passed at the spring center, spring and displacement sensor and measuring block contact.
The displacement sensor is an electronic sensor and can output a measured displacement value outwards in the form of an electric signal. When the limiting block is extruded by the elevator steel wire rope, the limiting block can slide in the sliding groove, the spring is further compressed, the measuring rod of the displacement sensor measures the moving distance of the limiting block, and the displacement sensor outputs an electric signal value corresponding to the distance.
More specifically, in the process of testing the diameter of the steel wire rope, the spring applies pressure to the limiting block, so that the surface of the limiting block and the limiting surface of the steel wire rope are always in contact with the steel wire rope, and the steel wire rope is limited by four planes. And displacement sensors connected with the limiting blocks on the first main body and the second main body are used for measuring the diameters of the steel wire rope in two mutually perpendicular directions.
Fig. 5 is a diagram illustrating a process of measuring the X axial diameter of the steel wire rope according to the first embodiment of the present invention, referring to fig. 5, taking the X axial diameter measurement as an example: if the steel wire rope is not clamped in the through hole, the distance between the limiting block and the limiting surface of the first steel wire rope is L, and the distance for the displacement sensor to detect the movement of the limiting block after the steel wire rope is installed in the through hole is S, the diameter of the steel wire rope to be tested at the testing point is L + S; the measurement of the Y axial diameter of the steel wire rope is the same as the measurement of the X axial diameter.
Fig. 6 is the wire rope diameter measurement process diagram of the second embodiment of the utility model, the utility model discloses an improve measured data's accuracy, more excellent, displacement measurement subassembly still includes: the measuring method comprises the following steps:
the measuring and calibrating rod is arranged in the through hole, the limiting block of the first displacement measuring assembly limits the X axis of the measuring and calibrating rod and measures the displacement L of the measuring and calibrating rod through a displacement sensorX-shaped rodThe limiting block of the second displacement measuring component limits the Y axial direction of the measuring and calibrating rod and measures the displacement L of the measuring and calibrating rod through the displacement sensorY-shaped rod；
The elevator steel wire rope is placed in the through hole in place of the measuring and calibrating rod, the limiting block of the first displacement measuring assembly axially limits the elevator steel wire rope X and measures the displacement L of the elevator steel wire rope through a displacement sensorX ropeThe limiting block of the second displacement measuring component limits the Y-axis of the elevator steel wire rope and measures the displacement L of the elevator steel wire rope through a displacement sensorY rope；
The X axial diameter D of the elevator steel wire rope can be obtained through the measured dataX=（LX rope-LX-shaped rod）+DRodThe Y axial diameter D of the elevator steel wire ropeY=（LY rope-LY-shaped rod）+DRodWherein D isRodIn order to measure the diameter of the calibration rod and obtain known data, the diameter of the calibration rod is preferably selected to be close to the diameter of the elevator rope, so that the accuracy of the data can be improved.
The diameter measuring device further includes: and the locking element is used for splicing and locking the first body and the second body. It will be understood that the diameter measuring device of the present invention may have a main body of five diameter measuring units, which is assembled by the locking elements, and may be an integrally formed structure, as shown in fig. 2 and 3. The specific type of locking element of the present invention is not limited, and is a conventional locking member in the field, such as a locking screw.
Fig. 7 is a structure diagram of the position measuring device of the present invention, referring to fig. 7, the position measuring device includes: the speed measuring roller is used for being tightly attached to the elevator steel wire rope, the rotary encoder is coaxially arranged with the speed measuring roller and is connected with the pulse counting module, the number of rotating circles of the speed measuring roller is recorded by the rotary encoder, the moving distance of the detected steel wire rope is recorded in real time in the testing process, a pulse signal related to the moving distance of the steel wire rope is output outwards, and the pulse counting module counts the pulse signal and sends the result to the computer. Specifically, the distance that the steel wire rope moves is equal to the number of rotation turns of the speed measuring roller multiplied by the circumference of the speed measuring roller.
Fig. 8 is the utility model discloses system installation structure schematic diagram, it is shown with reference to fig. 8, during the wire rope test, install diameter measurement device and position measurement device on the wire rope of computer lab floor top, in the test process, diameter measurement device and position measurement device keep static. Drive wire rope through the elevator driving sheave rotation with the utility model discloses diameter abnormal point on-line measuring system motion each other, the realization system is to wire rope diameter dynamic measurement and wire rope position record.
The preferred multichannel AD conversion module of AD conversion module for each displacement sensor analog signal dress trades into digital signal in with diameter measurement device, carries out synchronous acquisition to each displacement sensor data, and sends the result to computer analysis.
The utility model discloses the system is in the testing process, and the computer carries out synchronous analysis to wire rope diameter data and position data to with the result real-time display on the display screen, the user sets up the dangerous value that the wire rope diameter becomes thin on through the computer, when detecting that the wire rope diameter is less than this dangerous value, computer control alarm reports to the police.
To sum up, the utility model can realize the simultaneous measurement of the diameters of a plurality of steel wire ropes in the elevator steel wire rope group, and each steel wire rope can simultaneously measure the diameters in two vertical directions; the moving distance of the steel wire rope in the test process is recorded by using a position measuring device while the diameter of the steel wire rope is tested, and the position of the diameter finest point of each steel wire rope can be found by analyzing the diameter data and the position data by a computer, so that the function of positioning the abnormal point is realized; in addition, the measuring accuracy is improved by arranging the measuring calibration rod, so that the measuring result is more accurate; meanwhile, data are displayed and stored in a real-time curve mode in the testing process, the diameter and the position of the abnormal point of the steel wire rope are automatically analyzed, the automation degree is high, and the testing efficiency is high.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that various changes, modifications, substitutions and alterations can be made in the above embodiments by those skilled in the art without departing from the scope of the present invention, and that various changes in the detailed description and applications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (8)
1. The utility model provides an elevator wire rope diameter anomaly point on-line measuring system which characterized in that includes: a diameter measuring device, a position measuring device, an A/D conversion module, a pulse counting module and a computer, wherein,
the diameter measuring device is sleeved on the elevator steel wire rope, and the position measuring device is arranged to be tightly attached to the elevator steel wire rope; the A/D conversion module is connected with the diameter measuring device, and the pulse counting module is connected with the position measuring device; and the computer is respectively connected with the A/D conversion module and the pulse counting module and is used for receiving and processing diameter measurement data and position measurement data and positioning abnormal points of the diameter of the steel wire rope of the elevator.
2. The elevator rope diameter anomaly point online detection system according to claim 1, wherein said diameter measurement device has at least one diameter measurement unit, said diameter measurement unit comprising: the elevator steel wire rope displacement measuring device comprises a main body and a displacement measuring assembly, wherein the main body is provided with a through hole which is used for being sleeved on the elevator steel wire rope, and the through hole is provided with a first steel wire rope limiting surface and a second steel wire rope limiting surface which are perpendicular to each other; the first displacement measuring assembly and the second displacement measuring assembly are perpendicular to each other and arranged on the main body, the first displacement measuring assembly and the first steel wire rope limiting face are arranged in an opposite mode and used for limiting the X axial direction of the elevator steel wire rope and measuring the X axial diameter, and the second displacement measuring assembly and the second steel wire rope limiting face are arranged in an opposite mode and used for limiting the Y axial direction of the elevator steel wire rope and measuring the Y axial diameter.
3. The elevator wire rope diameter abnormal point online detection system according to claim 2, wherein the main body comprises: the first main part and the second main part are spliced to form the through hole, the first displacement measuring assembly is arranged in the mounting hole formed in the first main part, the first steel wire rope limiting surface is located on the second main part, the second displacement measuring assembly is arranged in the mounting hole formed in the second main part, and the second steel wire rope limiting surface is located on the first main part.
4. The elevator steel wire rope diameter abnormal point online detection system according to claim 3, wherein the displacement measurement component comprises: the elevator wire rope limiting device comprises a displacement sensor, a limiting block and a spring, wherein the displacement sensor is arranged in the mounting hole, the mounting hole is communicated with the through hole through a sliding groove formed in the bottom of the mounting hole, a measuring rod of the displacement sensor is connected with the A/D conversion module, the limiting block is connected with the measuring rod, the limiting block can slide in the sliding groove and extends into the through hole to limit the elevator wire rope, and two ends of the spring are respectively connected with the displacement sensor and the limiting block.
5. The elevator wire rope diameter abnormal point on-line detection system according to claim 3, wherein the diameter measurement device further comprises: and the locking element is used for splicing and locking the first body and the second body.
6. The elevator rope diameter anomaly point online detection system according to any one of claims 1-5, wherein the position measurement device comprises: the speed measuring roller is used for being tightly attached to the elevator steel wire rope, and the rotary encoder is coaxially arranged with the speed measuring roller and connected with the pulse counting module and is used for collecting the moving distance of the elevator steel wire rope.
7. The elevator steel wire rope diameter abnormal point online detection system according to claim 6, characterized by further comprising: the display screen and the alarm are respectively connected with the computer, and the display screen displays the diameters of the elevator steel wire rope in two directions perpendicular to each other at different positions in a text or curve mode.
8. The elevator steel wire rope diameter abnormal point online detection system according to claim 4, wherein the displacement measurement assembly further comprises: and the measuring and calibrating rod is arranged in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401467.1U CN210914876U (en) | 2019-08-27 | 2019-08-27 | Elevator wire rope diameter abnormal point on-line measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401467.1U CN210914876U (en) | 2019-08-27 | 2019-08-27 | Elevator wire rope diameter abnormal point on-line measuring system |
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| CN210914876U true CN210914876U (en) | 2020-07-03 |
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| CN201921401467.1U Withdrawn - After Issue CN210914876U (en) | 2019-08-27 | 2019-08-27 | Elevator wire rope diameter abnormal point on-line measuring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467089A (en) * | 2019-08-27 | 2019-11-19 | 广东省特种设备检测研究院珠海检测院 | A kind of elevator wire rope diameter abnormal point on-line detecting system |
-
2019
- 2019-08-27 CN CN201921401467.1U patent/CN210914876U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110467089A (en) * | 2019-08-27 | 2019-11-19 | 广东省特种设备检测研究院珠海检测院 | A kind of elevator wire rope diameter abnormal point on-line detecting system |
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