CN202421785U - Longitudinal probe and action mechanism protection system for magnetic flux leakage flaw detector - Google Patents
Longitudinal probe and action mechanism protection system for magnetic flux leakage flaw detector Download PDFInfo
- Publication number
- CN202421785U CN202421785U CN201120537566XU CN201120537566U CN202421785U CN 202421785 U CN202421785 U CN 202421785U CN 201120537566X U CN201120537566X U CN 201120537566XU CN 201120537566 U CN201120537566 U CN 201120537566U CN 202421785 U CN202421785 U CN 202421785U
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- probe
- action mechanism
- frequency converter
- control module
- proximity switch
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Abstract
The utility model provides a longitudinal probe and action mechanism protection system for a magnetic flux leakage flaw detector. A proximity switch is arranged at the rear end of a crankshaft of a probe action mechanism, and a probe position detection and control module is arranged in a programmable logic controller (PLC), and is connected with the proximity switch and a frequency converter respectively. When the proximity switch detects that a probe returns to an original position, the probe position detection and control module processes a received signal, and transmits the processed signal to the frequency converter to control a roller table motor to run for normal flaw detection; and if the proximity switch detects that the probe is not at the original position, the probe position detection and control module controls the roller table motor to stop through the frequency converter. Therefore, the problem that a steel tube cracks up the probe is effectively prevented, the safety of the probe action mechanism is ensured, a production halt accident is avoided, the operation rate of equipment is increased, the yield of a machine set is improved, the consumption of spare parts is reduced, production cost is lowered, and the labor intensity of operation personnel is reduced.
Description
Technical field
The utility model belongs to automation field, relates in particular to a kind of protective device that is used for magnetic flux leakage testing device vertical sonde and actuating mechanism.
Background technology
The used magnetic flux leakage testing device of weldless steel tube carrying out flaw detection is that a kind of computerized leakage field is vertical, leakage field laterally reaches four probe ultrasonic thickness measurement combined type fault detection systems.Wherein most important parts is vertical leakage field unit, and vertically the leakage field unit mainly is made up of the magnetic pole of a cover rotation, 2 probes and actuating mechanism, adjustment unit, signal microprocessor and detecting element.Main pole is rotated with probe during work, and maximum number of revolutions is 350 commentaries on classics.
The vertical sonde actuating mechanism is made up of bidirectional electromagnetic valve, actuating mechanism and a probe; Probe is fixed on the front end of actuating mechanism; When solenoid-driven actuating mechanism, steel pipe got into vertical unit, mechanism stretched out by PLC (programmable logic controller) control action; Probe is attached on the tube wall, steel pipe through vertical unit after actuating mechanism return original position.Because dust and iron sheet are more on the rolling line; Therefore the steel pipe surfaces externally and internally all is stained with dust and graphite; Can be adsorbed onto in the turning joint of actuating mechanism owing to the action of a magnetic field when probe action mechanism gets into when vertical, make the copper sheathing of mechanism's rotation axis and bearing wear very fast, cause mechanism to stretch out or return not in place; When next root steel pipe is come, can knock probe, cause the damage of probe and actuating mechanism.Probe and actuating mechanism very expensive, and the order cycle time is long, has both influenced the direct motion of production, has increased production cost.
Summary of the invention
The utility model aims to provide and a kind ofly prevents the steel pipe probe of wounding, thereby enhances productivity, and reduces the magnetic flux leakage testing device vertical sonde and the actuating mechanism protection system of spare parts consumption.
For this reason, the solution taked of the utility model is:
A kind of magnetic flux leakage testing device vertical sonde and actuating mechanism protection system; Comprise PLC, frequency converter and electric machines for roller; It is characterized in that; The crankshaft rear end of probe action mechanism is provided with one near switch, in PLC, sets up probe positions and detects control module, and probe positions detects control module and is connected with frequency converter respectively with near switch.
Control method of the utility model and effect are:
When the steel pipe operation is come; What be located at crankshaft rear end is to return original position near switch as if detection probe; The probe positions of detection signal being sent in the PLC near switch detects control module, and probe positions detection control module will be exported signal after treatment and send to frequency converter, and the operation of Frequency Converter Control electric machines for roller is sent steel pipe into defectoscope; After the steel pipe head got into defectoscope, probe stretched out near pipe end and begins flaw detection; As not having not in position near the switch detection probe; Then probe positions detects control module through the stall immediately of Frequency Converter Control electric machines for roller, thereby prevents that effectively the probe that stretches out is not withdrawn when driving mechanism machinery or power network fluctuation tripping operation, misoperation; The problem that causes steel pipe that probe is broken; Not only guaranteed the safety of probe and actuating mechanism, avoided improving equipment operation rate and unit output because of the long stopping production accident that causes reset time; And can reduce spare parts consumption, and reduce production costs, alleviate operating personnel's labour intensity, improve the device security coefficient.
Description of drawings
Accompanying drawing is magnetic flux leakage testing device vertical sonde and actuating mechanism protection system structured flowchart.
Embodiment
Visible by accompanying drawing, magnetic flux leakage testing device vertical sonde and actuating mechanism protection system are mainly reached by PLC, frequency converter, electric machines for roller to be formed near switch.The utility model is on the basis of original PLC, frequency converter and electric machines for roller; The one, set up one near switch at the crankshaft rear end of probe action mechanism; The 2nd, in PLC, to set up a probe positions and detected control module, probe positions detects control module one end and is connected near switch, and the other end connects frequency converter; Frequency converter also is connected on the electric machines for roller simultaneously, and the start and stop of control electric machines for roller.
Claims (1)
1. magnetic flux leakage testing device vertical sonde and actuating mechanism protection system; Comprise PLC, frequency converter and electric machines for roller; It is characterized in that; The crankshaft rear end of probe action mechanism is provided with one near switch, in PLC, sets up probe positions and detects control module, and probe positions detects control module and is connected with frequency converter respectively with near switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120537566XU CN202421785U (en) | 2011-12-20 | 2011-12-20 | Longitudinal probe and action mechanism protection system for magnetic flux leakage flaw detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120537566XU CN202421785U (en) | 2011-12-20 | 2011-12-20 | Longitudinal probe and action mechanism protection system for magnetic flux leakage flaw detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421785U true CN202421785U (en) | 2012-09-05 |
Family
ID=46746530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120537566XU Expired - Fee Related CN202421785U (en) | 2011-12-20 | 2011-12-20 | Longitudinal probe and action mechanism protection system for magnetic flux leakage flaw detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849343A (en) * | 2015-05-18 | 2015-08-19 | 中海石油(中国)有限公司 | Experimental platform of pipeline magnetic flux leakage detection theory |
| CN107796867A (en) * | 2017-10-30 | 2018-03-13 | 林州凤宝管业有限公司 | Steel pipe magnetic leakage crack detection method |
| CN110002184A (en) * | 2019-04-08 | 2019-07-12 | 中国原子能科学研究院 | Transmission fault detection system, transmission fault detection method and Transmission system |
-
2011
- 2011-12-20 CN CN201120537566XU patent/CN202421785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849343A (en) * | 2015-05-18 | 2015-08-19 | 中海石油(中国)有限公司 | Experimental platform of pipeline magnetic flux leakage detection theory |
| CN104849343B (en) * | 2015-05-18 | 2018-02-02 | 中海石油(中国)有限公司 | A kind of Pipeline Magnetic Flux Leakage Inspection Experiment of Principle platform |
| CN107796867A (en) * | 2017-10-30 | 2018-03-13 | 林州凤宝管业有限公司 | Steel pipe magnetic leakage crack detection method |
| CN110002184A (en) * | 2019-04-08 | 2019-07-12 | 中国原子能科学研究院 | Transmission fault detection system, transmission fault detection method and Transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20171220 |