CN203259495U - Rotary bar nondestructive inspection device - Google Patents
Rotary bar nondestructive inspection device Download PDFInfo
- Publication number
- CN203259495U CN203259495U CN 201320180478 CN201320180478U CN203259495U CN 203259495 U CN203259495 U CN 203259495U CN 201320180478 CN201320180478 CN 201320180478 CN 201320180478 U CN201320180478 U CN 201320180478U CN 203259495 U CN203259495 U CN 203259495U
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- rotating cylinder
- shell
- probe
- inner core
- detector
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Abstract
The utility model discloses a rotary bar nondestructive inspection device which comprises a probe, a shield cable and a detector, wherein the probe is connected with the detector through the shield cable, the probe comprises a housing, a motor fixed in the housing, a gear set connected with a motor shaft, and a rotary drum connected with the gear set, more than 4 magnetic sensors are arranged on the inner wall of the rotary drum, the rotary drum is connected with the housing through a bearing, detection holes are formed in the probe, synchronizing wheels are respectively arranged on two end faces of the outer part of the housing, which are provided with the detection holes, and synchronizing sensors are arranged on the synchronizing wheels. The motor drives the magnetic sensors through the gear set and the rotary drum for rotatably measuring a body to be measured, and a testing result is displayed on a display screen of the detector. Therefore, the detection blind region is greatly reduced, a rotary bar is detected for multiple times on the same position, and the detection reliability is remarkably improved.
Description
Technical field
The utility model relates to a kind of non-destructive detection device, especially a kind of bar non-destructive detection device based on weak magnetic detection technique.
Background technology
At present carry out commonly used in the method for Non-Destructive Testing eddy current testing method, ultrasonic testing and Magnetic Flux Leakage Inspecting method being arranged for the defective of metal species tubing bar and wire rope class material.The Magnetic Flux Leakage Inspecting method is fast due to detection speed, reliability is high and the surface of the work cleanliness are required the characteristics such as low, is used widely in the assessment of the detection of metal material and Related product, and the method is divided into two kinds of strong magnetic detection method and weak magnetic detection methods.The characteristics of strong magnetic detection method are: transducer sensitivity is low, requires the surface of measured body, and a little less than detecting handling capacity, the strong magnetic magnetization is strong, and is larger to the magnetic field binding force of measured body, is difficult for demagnetization; The advantages such as weak magnetic detects rule because transducer sensitivity is high, and the gap of detecting sensor and measured surface allows larger, and the magnetic field constraint of measured body is little, thus obtain using more widely than strong magnetic detection method in practice.But present weak magnetic detection method, magneto-dependent sensor is placed on the circumference of measured body, and owing to there being coupling between sensor, sensor location can not be too close, thereby have certain detection blind area between neighboring sensors.Because the relative measured body of sensor only has axially-movable, measured body is done the line pectination detect in addition, the confidence level of testing result is not high, can only reach 65%.
The utility model content
The technical problems to be solved in the utility model is that a kind of swinging bar non-destructive detection device that coverage rate is more complete, testing result is more accurate and confidence level is higher that detects is provided.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be: a kind of swinging bar non-destructive detection device, comprise probe, and shielded cable, detector, probe is connected with detector by shielded cable.Described probe comprises shell, is arranged on the synchronizing wheel of housing exterior, it is characterized in that: also be provided with synchro pick-up on synchronizing wheel, described probe also comprises the motor that is fixed on enclosure, is arranged on the pinion wheel on motor output shaft, the gear wheel that is meshed with pinion wheel, rotating cylinder, gear wheel is fixedly connected with rotating cylinder, be provided with the bearing I between rotating cylinder outer wall and outer casing inner wall, be provided with Magnetic Sensor on the inwall of rotating cylinder, described Magnetic Sensor is more than four, and the edge circumferentially is evenly arranged on described rotating cylinder inwall.Also be provided with exploration hole on probe, described exploration hole is through hole, and this through hole is successively through shell, gear wheel, rotating cylinder, and the axis of rotation of exploration hole axis and rotating cylinder coincides.
The inside of described rotating cylinder arranges inner core, and the inner core material is plastics, and an end of described inner core is fixedly connected with shell, is provided with bearing between wall and rotating cylinder inwall outer tube.
Described exploration hole is by being embedded in respectively shell left side center pit, gear wheel rotation center hole, and rotating cylinder left end center pit, inner core left end center pit, and the sleeve endoporus in the center pit of shell right side forms, the shell left side is the face vertical with motor shaft.
Described detector comprises sampling unit, CPU, driver, display screen for graphic presentation, data storage cell, sampling unit gathers the next signal of Magnetic Sensor transmission and this signal is exported to CPU, after CPU processes this signal, stored by data storage cell, show by display screen for graphic presentation simultaneously, driver is used for accepting the order-driven motor rotation of CPU.
Described shell is hollow rectangular parallelepiped or hollow cylinder.
When the utility model uses, still put into the exploration hole of probe with the bar of remanent magnetism with being magnetized, make bar do unidirectional rectilinear motion in the exploration hole of probe; Synchro pick-up induction bar moves the generation synchronizing signal, this signal is exported to CPU, CPU receives that the backward driver of signal sends instruction and makes the motor rotation, and motor drives the rotating cylinder rotation by pinion wheel and gear wheel, rotates thereby drive the Magnetic Sensor that is arranged on the rotating cylinder inwall; Sampling unit is exported to CPU to the signal that the Magnetic Sensor transmission that collects comes, and CPU transfers to data storage cell and stores, simultaneously output signal display waveform on display screen for graphic presentation after this signal is processed; The testing staff judges according to the waveform of output position and the type to bar damage, if output waveform and desirable relatively waveform is identical, bar not damaged, output waveform is compared with ideal comparison waveform, and amplitude of variation is larger, damages more serious.
The beneficial effects of the utility model: the probe that adopts due to the utility model, Magnetic Sensor can rotate along measured body, make the defect situation for same position, on a plurality of sensor output signals, reflection is arranged, just time location of living in is different on oscillogram, and the signal waveform of adjacent two sensors output differs a pitch.If rotational speed is higher, the defect situation of same position will be reflected by more times.Induced signal is carried out contraposition, and the waveform of same position is analyzed, and what signal was the strongest is actual result, so not only greatly reduced the detection blind area, and same position is by repeated detection, and detection confidence greatly improves, and can bring up to 85% by 65% of prior art.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of the utility model probe.
Fig. 3 is system of the present utility model composition diagram.
In figure, 1, probe, 2, shielded cable, 3, detector, 101, shell, 102, motor, 103, pinion wheel, 104, gear wheel, 105, rotating cylinder, 106, bearing I, 107, Magnetic Sensor, 108, inner core, 109, bearing I I, 110, synchro pick-up, 111, synchronizing wheel, 112, exploration hole.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1; A kind of swinging bar non-destructive detection device; Comprise probe 1; Shielded cable 2; Detector 3; Probe 1 is connected with detector 3 by shielded cable 2; Described probe comprises hollow rectangular parallelepiped shell 101; Be arranged on the synchronizing wheel 111 of shell 101 outsides; Described detector 3 comprises sampling unit; CPU; Driver; Display screen for graphic presentation; Data storage cell; Sampling unit gathers the next signal of Magnetic Sensor transmission and this signal is exported to CPU; After CPU processes this signal; Stored by data storage cell; Show by display screen for graphic presentation simultaneously.The structure of described probe 1 as shown in Figure 2, also comprise the motor 102 that is fixed on shell 101 inside, be arranged on the pinion wheel 103 on motor 102 output shafts, the gear wheel 104 that is meshed with pinion wheel 103, rotating cylinder 105 and inner core, gear wheel 104 is fixedly connected with rotating cylinder 105, be provided with bearing I 106 between rotating cylinder 105 outer walls and shell 101 inwalls, at rotating cylinder 10) inwall on be provided with Magnetic Sensor 107, Magnetic Sensor is four, and the edge circumferentially is evenly arranged on described rotating cylinder inwall.The inside of rotating cylinder 105 arranges inner core 108; Inner core material 108 is plastics; Be used for protecting Magnetic Sensor 107; One end of described inner core 108 is fixedly connected with shell 101; Be provided with bearing II 109 between inner core 108 outer walls and rotating cylinder 105 inwalls; Also be provided with exploration hole 112 on probe 1; Described exploration hole 112 is through hole; By being embedded in respectively shell left side center pit; Gear wheel rotation center hole; Rotating cylinder left end center pit; Inner core left end center pit; And the sleeve endoporus in the center pit of shell right side forms; The shell left side is the face vertical with motor shaft; The axis of rotation of exploration hole axis and rotating cylinder coincides; Also be provided with synchro pick-up 110 on synchronizing wheel 111.
When the utility model uses, still put into the exploration hole of probe with the bar of remanent magnetism with being magnetized, make bar do unidirectional rectilinear motion in the exploration hole of probe; Synchro pick-up induction bar moves the generation synchronizing signal, this signal is exported to CPU, CPU receives that the backward driver of signal sends instruction and makes the motor rotation, and motor drives the rotating cylinder rotation by pinion wheel and gear wheel, rotates thereby drive the Magnetic Sensor that is arranged on the rotating cylinder inwall; Sampling unit is exported to CPU to the signal that the Magnetic Sensor transmission that collects comes, and CPU transfers to data storage cell and stores, simultaneously output signal display waveform on display screen for graphic presentation after this signal is processed; The testing staff judges according to the waveform of output position and the type to bar damage, if output waveform and desirable relatively waveform is identical, bar not damaged, output waveform is compared with ideal comparison waveform, and amplitude of variation is larger, damages more serious.
The probe that adopts due to the utility model, Magnetic Sensor can rotate along measured body, make the signal for each sensor collection of defect situation of same position that reflection be arranged on output waveform, just time location of living in is different on oscillogram, and the waveform reflection that adjacent two sensors are exported all differs a pitch.If rotational speed is higher, the defect situation of same position will be reflected by more times, then signal is carried out contraposition, and the waveform of same position is analyzed, and what signal was the strongest is actual result.So not only greatly reduced the detection blind area, and same position is by repeated detection, detection confidence can bring up to 85% by 65% of prior art.
Claims (5)
1. swinging bar non-destructive detection device; Comprise probe (1); Shielded cable (2); Detector (3); Probe (1) is connected with detector (3) by shielded cable (2); Described probe (1) comprises shell (101); Be arranged on the outside synchronizing wheel (111) of shell (101); It is characterized in that: also be provided with synchro pick-up (110) on synchronizing wheel (111); Described probe (1) also comprises the motor (102) that is fixed on shell (101) inside; Be arranged on the pinion wheel (103) on motor (102) output shaft; The gear wheel (104) that is meshed with pinion wheel (103); Rotating cylinder (105); Gear wheel (104) is fixedly connected with rotating cylinder (105); Be provided with bearing I (106) between rotating cylinder (105) outer wall and shell (101) inwall; Be provided with Magnetic Sensor (107) on the inwall of rotating cylinder (105); Described Magnetic Sensor (107) is more than four; The edge circumferentially is evenly arranged on described rotating cylinder (105) inwall; Also be provided with exploration hole (112) on probe (1), described exploration hole (112) is through hole, this through hole is successively through shell (101), gear wheel (104), rotating cylinder (105), and the axis of rotation of exploration hole (112) axis and rotating cylinder (105) coincides.
2. a kind of swinging bar non-destructive detection device according to claim 1, it is characterized in that: the inside of described rotating cylinder (105) arranges inner core (108), inner core (108) material is plastics, one end of described inner core (108) is fixedly connected with shell (101), is provided with bearing II (109) between inner core (108) outer wall and rotating cylinder (105) inwall.
3. a kind of swinging bar non-destructive detection device according to claim 2, it is characterized in that: described exploration hole (112) is by being embedded in respectively shell left side center pit, gear wheel rotation center hole, rotating cylinder left end center pit, inner core left end center pit, and the sleeve endoporus in the center pit of shell right side forms.
4. a kind of swinging bar non-destructive detection device according to claim 1, it is characterized in that: described detector (3) comprises sampling unit, CPU, driver, display screen for graphic presentation, data storage cell, sampling unit gathers the next signal of Magnetic Sensor transmission and this signal is exported to CPU, after CPU processes this signal, export to respectively data storage cell and store with display screen for graphic presentation and show, driver is used for accepting the order-driven motor rotation of CPU.
5. a kind of swinging bar non-destructive detection device according to claim 1, it is characterized in that: described shell (101) is hollow rectangular parallelepiped or hollow cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180478 CN203259495U (en) | 2013-04-11 | 2013-04-11 | Rotary bar nondestructive inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320180478 CN203259495U (en) | 2013-04-11 | 2013-04-11 | Rotary bar nondestructive inspection device |
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| Publication Number | Publication Date |
|---|---|
| CN203259495U true CN203259495U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320180478 Expired - Fee Related CN203259495U (en) | 2013-04-11 | 2013-04-11 | Rotary bar nondestructive inspection device |
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| CN (1) | CN203259495U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872254A (en) * | 2018-09-10 | 2018-11-23 | 河南巨捷电子科技有限公司 | A kind of metal non-destructive detection device with electronic display function |
| CN110208461A (en) * | 2019-05-29 | 2019-09-06 | 华纬科技股份有限公司 | A kind of rotary defect-detecting equipment |
-
2013
- 2013-04-11 CN CN 201320180478 patent/CN203259495U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872254A (en) * | 2018-09-10 | 2018-11-23 | 河南巨捷电子科技有限公司 | A kind of metal non-destructive detection device with electronic display function |
| CN110208461A (en) * | 2019-05-29 | 2019-09-06 | 华纬科技股份有限公司 | A kind of rotary defect-detecting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140411 |