CN201364322Y

CN201364322Y - Semi-automatic nondestructive testing device of valve

Info

Publication number: CN201364322Y
Application number: CNU2009201368903U
Authority: CN
Inventors: 林俊明
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-25
Filing date: 2009-02-25
Publication date: 2009-12-16
Anticipated expiration: 2019-02-25

Abstract

The utility model relates to the field of nondestructive testing, in particular to a semi-automatic nondestructive testing device of a valve, comprising a working platform base, a turntable used for placing the valve to be tested, a first driving motor used for driving the turntable to rotate, a detecting probe which flaps up and down along an arc-shaped surface at the periphery of a valve disc, a analysis processing module connected with the detecting probe, and a second driving motor used for driving the detecting probe to flap up and down, wherein the detecting probe is fixed at the end of a support rod that is articulated on an upright post fixed on the working platform base. Compared with the prior art, the first driving motor is used for controlling the valve to rotate, and the second driving motor is used for controlling the probe to flap up and down, so that semi-automatic nondestructive testing of the valve can be realized, the testing efficiency is greatly improved, and consistency and accuracy of the tested results can be enhanced.

Description

The semi-automatic the cannot-harm-detection device of a kind of valve valve

Technical field

The utility model relates to the Non-Destructive Testing field, is meant semi-automatic the cannot-harm-detection device of a kind of valve valve especially.

Background technology

The valve valve is responsible for input fuel and combustion gas in engine specially as the important accessory of engine.The arcwall face of valve valve disc periphery is owing to bearing powerful impact mechanical load, and is higher to its quality requirements, do not allow to occur seminess, needs it is detected for this reason.Traditional detection method adopts manual inspection or indirect detection usually, be published in as Wang Naijun in the article of one piece " about early stage judgement and prevention of valve crackle " of " diesel locomotive " magazine on the first phase in 1997 and just mention a kind of indirect detection method, not only very loaded down with trivial details, complicated, need also to judge that its testing result is also unreliable by experience.And the manual inspection method adopts hand rotation valve valve usually, by detecting instrument the arcwall face of valve valve disc periphery is surveyed, artificial reading also writes down testing result, detection speed is slower, inefficiency, and have very big artificial factor, be difficult to guarantee the consistance and the reliability of testing result.

The utility model content

Fundamental purpose of the present utility model is to overcome the shortcoming of prior art, provides a kind of valve valve semi-automatic the cannot-harm-detection device, not only can improve detection efficiency, also can improve the consistance and the reliability of testing result.

The utility model solves its technical matters and adopts following technical scheme:

The semi-automatic the cannot-harm-detection device of a kind of valve valve, comprise a table base, be used to place the rotating disk of valve valve to be measured, one first drive motor that is used to drive this rotating disk rotation, second drive motor that detection probe, an analysis and processing module that is connected with this detection probe and this detection probe of driving that swings up and down along the arcwall face of valve valve disc periphery swings up and down, this detection probe is fixed in the end of a pole, and this pole is articulated on the column that is fixed on the table base.

According to a better embodiment of the present utility model, described detection probe is a solenoid, and described analysis and processing module is the vortex analysis processing module.

According to a better embodiment of the present utility model, described second drive motor is fixed on the described column, and described strut fixation is on the output shaft of second drive motor, and this second drive motor drives pole and up and down reciprocatingly swings.

The utility model adopts EDDY CURRENT, and EDDY CURRENT is one of method of industrial Non-Destructive Testing.Feed alternating current for a coil, the electric current that passes through under certain condition is constant.If near measured workpiece, in water, can induce eddy current to coil in the workpiece as ship, be subjected to vortes interference, coil current can change.Because whether the size of eddy current is with having defective and difference in the workpiece, so the size that coil current changes can reflect that zero defect is arranged.EDDY CURRENT is a kind of lossless detection method that is based upon on the electromagnetic induction principle basis, and it is applicable to conductive material, if we place a conductor among the alternating magnetic field, just has induction current to exist in conductor, promptly produces eddy current.Because the variation of conductor self various factors (as conductivity, magnetic permeability, shape, size and defective etc.) can cause faradic variation, utilize this phenomenon and declare and know that conductor nature, status detection method just are called eddy current detection method.

The utility model in use, valve valve to be measured is positioned on the rotating disk, start first drive motor and second drive motor simultaneously, first drive motor drive rotating disk and on the rotation of valve valve, the detection probe of second drive motor driving pole and end thereof swings up and down along the arcwall face of valve valve disc periphery, detection probe sends the data that obtain to analysis and processing module, in case detection probe detects unusually, analysis and processing module is with warning reminding.

By above-mentioned to description of the present utility model as can be known, compared with prior art, the semi-automatic the cannot-harm-detection device of a kind of valve valve of the present utility model is rotated by first drive motor control valve valve, swing up and down by second drive motor control probe, thereby realize the semi-automatic Non-Destructive Testing of valve valve, improve detection efficiency greatly, and improve the consistance and the accuracy of testing result.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Embodiment

Below the utility model will be further described by embodiment.

With reference to Fig. 1, the semi-automatic the cannot-harm-detection device of a kind of valve valve of the present utility model comprises a table base 10, a rotating disk 20, one first drive motor 30, a detection probe 40, one second drive motor 50, a pole 60, a column 70 and an analysis and processing module 80.

Rotating disk 20, first drive motor 30, column 70 and analysis and processing module 80 all are located on the table base 10.Rotating disk 20 is fixed on the output terminal 31 of first drive motor 30, by the 30 control rotations of first drive motor.Second drive motor 50 is fixed on the column 70, its output terminal 51 also passes column 70, one end of pole 60 is fixed on the output terminal 51 of second drive motor 50, and the other end is fixed with detection probe 40, and detection probe 40 also is connected on the analysis and processing module 80 by a lead 81.

The utility model in use, valve valve 90 to be measured is positioned on the rotating disk 20, start first drive motor 30 and second drive motor 50 simultaneously, first drive motor 30 drive rotating disks 20 and on 90 rotations of valve valve, the detection probe 40 of second drive motor, 50 driving poles 60 and end thereof swings up and down along the arcwall face of valve valve disc 91 peripheries, detection probe 40 sends the data that obtain to analysis and processing module 80 by lead 81, in case detection probe 40 detects unusually, analysis and processing module 80 is with warning reminding.

Detection probe 40 is a solenoid, when feeding alternating current for detection probe 40, the electric current that passes through under the situation that does not have the extraneous factor influence is constant, when the arcwall face of detection probe 40 close valve valve disc 91 peripheries, valve valve disc 91 can induce eddy current, be subjected to vortes interference, the electric current of detection probe 40 can change.Because whether the size of eddy current is with having crackle and difference in the valve valve disc 91, so the size that detection probe 40 electric currents change can reflect that valve valve disc 91 has flawless.

When actual detected, the rotating speed of first drive motor 30 and second drive motor 50 will control evenly, slowly.The angle that detection probe 40 contacts with valve valve disc 91 will be consistent as far as possible, is preferably 90 degree, so that be consistent " zero point " when detecting.

Above-mentioned only is an embodiment of the present utility model; but design concept of the present utility model is not limited thereto; such as not necessarily adopting EDDY CURRENT; also can adopt other detection mode; in a word; allly utilize this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.

Claims

1, semi-automatic the cannot-harm-detection device of a kind of valve valve, it is characterized in that: it comprises a table base, be used to place the rotating disk of valve valve to be measured, one first drive motor that is used to drive this rotating disk rotation, second drive motor that detection probe, an analysis and processing module that is connected with this detection probe and this detection probe of driving that swings up and down along the arcwall face of valve valve disc periphery swings up and down, this detection probe is fixed in the end of a pole, and this pole is articulated on the column that is fixed on the table base.

2, semi-automatic the cannot-harm-detection device of a kind of valve valve as claimed in claim 1, it is characterized in that: described detection probe is a solenoid, described analysis and processing module is the vortex analysis processing module.

3, semi-automatic the cannot-harm-detection device of a kind of valve valve as claimed in claim 1, it is characterized in that: described second drive motor is fixed on the described column, described strut fixation is on the output shaft of second drive motor, and this second drive motor drives pole and up and down reciprocatingly swings.