CN106769110A - A kind of method of the high-voltage discharge test for tire - Google Patents

Abstract

A kind of tire checkup method of the present invention.In embodiment, high voltage probe is held against the surface of tire.High voltage probe is set to be powered and provide relative motion between the surface of tire and high voltage probe.In the case of the exception that there is the insulating materials for penetrating surface of tyre, electric discharge will occur between power spring electrode and reference electrode.Reference electrode is positioned adjacent to the bead part of tire and causes electric discharge by from high voltage probe through abnormal one or more casingplies reached in tire in the surface of tire.Casingply will take electric discharge to the bead part of tire, and electric discharge there will pass to reference electrode.

Description

A kind of method of the high-voltage discharge test for tire

Technical field

The present invention relates to a kind of method of the high-voltage discharge test for tire.

Background technology

Traditional HVD test machines have some shortcomings.Accordingly, it would be desirable to a kind of use for providing abnormal more consistent detectability In the solution that the automatic HVD of tire is tested.It is difficult the thickness of tread portion by such as tire and taking turns for chemical composition The solution of tire variable influence will be particularly useful.The solution that the voltage for reducing is applied to high voltage probe is provided To be particularly useful.

The content of the invention

An exemplary embodiment disclosed by the invention is related to a kind of tire checkup method.The tire checkup method includes： Place high voltage probe in the surface of neighbouring tire；The bead part of neighbouring tire places reference electrode；High voltage probe is set to be powered； Apply the relative motion between high voltage probe and the surface of tire；And between detection high voltage probe and reference electrode one It is individual

Or multiple electric discharges are of the presence of an anomaly with one or more in the surface for detecting tire.In a particular embodiment, one or It is multiple

Electric discharge can be conducted through one or more casingplies of tire.

In the modification of the exemplary embodiment, reference electrode includes the conduction contacted with the bead part holding of tire Plate.In another modification of the exemplary embodiment, high voltage probe includes the power spring being pressed against on the surface of tire Electrode.

In another modification of the exemplary embodiment, apply the relative fortune between high voltage probe and the surface of tire The dynamic inner surface for including rotating tire around high voltage probe with tire slewing.The method can include the table when tire Face around high voltage probe rotate when keep reference electrode against tire bead part.

In another modification of the exemplary embodiment, apply the relative fortune between high voltage probe and the surface of tire It is dynamic to include positioning high voltage probe so that high voltage probe keeps contacting in the first radial position with the surface of tire；Revolved with tire Turn equipment and continue at least one revolution around the inner surface that the surface of high voltage probe rotates tire；Positioning high voltage probe is caused High voltage probe keeps contacting in the second radial position with the surface of tire；And with tire slewing around high voltage probe Surface rotate tire the revolution of continuous surface at least one.

In another modification of the exemplary embodiment, the method includes the position for monitoring one or more electric discharges with true One or more abnormal positions on the surface of fixed wheel tire.

Another exemplary embodiment of the disclosure is related to a kind of Tire testing device.The Tire testing device includes grasping Make the surface high voltage probe for positioning and the reference electrode for operationally being positioned adjacent to the bead part of tire of the neighbouring tire in ground.

Tire testing device includes the slewing for being configured to provide the relative motion between tire and high voltage probe, example Such as tire slewing.Tire testing device also include operationally detection high voltage probe and reference electrode between one or The detection circuit of multiple electric discharge.For example, detection circuit can operationally detect one or more carcasses for being conducted through tire One or more electric discharges of casing ply.

In the modification of the exemplary embodiment, reference electrode includes the conduction contacted with the bead part holding of tire Plate.In another modification of the exemplary embodiment, high voltage probe includes being configured to be pressed against leading on the surface of tire Electrical spring electrode.

In another modification of the exemplary embodiment, slewing is configured to around high voltage probe rotation tire Inner surface.When the surface of tire rotates around high voltage probe, reference electrode may be positioned such that the bead part for being held against tire Point.

In another modification of the exemplary embodiment, tire checkup device also includes high voltage probe location equipment, The high voltage probe is operationally positioned adjacent to surface of tyre so that high voltage probe exists by high voltage probe location equipment First radial position is held against the surface of tire.High voltage probe location equipment may be configured to the high voltage probe The first radial position from the surface of tire is adjusted to the second radial position on the surface of tire.

In another modification of the exemplary embodiment, detection circuit operationally provides expression one or more electric discharges Position signal.

With reference to following description and attached claims, these and other features of the invention, aspect and advantage will become It is best understood from.Comprising in this specification and the accompanying drawing of the part that constitutes the specification shows embodiments of the invention, and And be used to explain principle of the invention together with the description.

Brief description of the drawings

Elaborate that it is for the person of ordinary skill of the art of the invention to include in the specification of refer to the attached drawing Optimal mode of the invention complete and disclosure is allowed, wherein：

Fig. 1 shows the block diagram of the example tire inspection system of the exemplary embodiment according to the disclosure；

Fig. 2 shows the flow chart of the exemplary method steps of the exemplary embodiment according to the disclosure；

Fig. 3 shows the perspective view of the example tire test device of the exemplary embodiment according to the disclosure；

Fig. 4 shows the exemplary height that can be used in example tire test device of the exemplary embodiment according to the disclosure Voltage probe；

Fig. 5 shows the exemplary reference electrode that can be used according to the exemplary embodiment of the disclosure；

Fig. 6 shows cutting for the tire that the example tire test device of the positive exemplary embodiment using according to the disclosure is checked Face figure.

Specific embodiment

In order to describe the present invention, embodiments of the invention and aspect, the embodiment and aspect are reference will be made in detail now One or more examples be shown in the drawings.Each example is explained not as limitation of the invention as of the invention It is provided.In fact, from teaching disclosed herein, those skilled in the art will be evident that can enter in the present invention Row various modifications and variations are without deviating from the scope of the present invention or spirit.For example, shown as the part of one embodiment or The feature of description can be used for another embodiment to produce another embodiment.Therefore, belong to subsidiary it is contemplated that covering Claim and its equivalent in the range of such modification and modification.

Generally, this disclosure relates to the apparatus and method for being used for the high-voltage discharge test of tire.In a particular embodiment, High voltage probe is held against the surface of tire.High voltage probe is set to be powered and between the surface of tire and high voltage probe

Relative motion is provided.In the case of the exception that there is the insulating materials for penetrating surface of tyre, electric discharge will occur in conduction Spring

Between electrode and reference electrode.

In accordance with an embodiment of the present disclosure, reference electrode is positioned adjacent to the bead part of tire.In this manner, electric discharge will not wear Cross the tread portion of tire.On the contrary, during electric discharge will reach tire from high voltage probe through the exception in the surface of tire One or more casingplies.Casingply will take electric discharge to the bead part of tire, and electric discharge there will pass to ginseng Examine electrode.Reference electrode is provided by the bead part of neighbouring tire, can avoid being combined by the change and tyre surface of tread thickness The error of surface abnormalities detection caused by the change of thing.This can reduce the quantity of error detection, make tyre inspection process Reliability increases.Further, since discharge through less tire material, therefore can reduce and be applied to high voltage probe to generate The voltage of electric discharge.

With reference to Fig. 1, the example tire test system 100 of the exemplary embodiment according to the disclosure will be illustrated now Schematic summary.Tire testing system 100 can be used for performing tire 102 HVD measuring technologies to determine tire The presence of one or more surface abnormalities in 102, and determine whether tire 102 can be repaired or renovate.When herein In when using, term "abnormal" can represent any irregular of the surface of tire, including the defect in tire, such as tortoise Split, crackle, breach, gouge, wear and tear, penetrate and other defects.

Tire detecting system 100 can include high voltage probe 110, detection circuit 120, the and of tire slewing 130

Reference electrode 170.The surface that high voltage probe 110 can be configured to neighbouring tire 102 is placed, and reference electrode 170 bead parts that can be configured to neighbouring tire 102 are placed.High voltage source 112 can be by high voltage energy（For example about 37.5kV to about 50kV DC voltage energy）It is supplied to high voltage probe 110.High voltage source 112 can be arranged to High voltage energy is supplied to any source of high voltage probe 110.For example, in a particular embodiment, high voltage source 112 can So that the TEI Micro FS-D units of 50kV direct currents are produced at high voltage probe using charge/discharge cycle. One of ordinary skill in the art uses disclosure presented herein it is to be understood that using any high voltage source without de- From the scope of the present disclosure.

High voltage probe 110 can be held against the surface of tire 102 using high voltage probe location equipment.Electricity high Pressure probe location equipment can be controlled automatically to be located against tire with by high voltage probe 110 by controller 150 102 surface.Tire slewing 130 can be controlled to apply high voltage probe 110 and tire 102 by controller 150 Surface between relative motion.For example, tire slewing 130 can be used in the top rotating wheel of high voltage probe 110 The inner surface of tire 102.When the inner surface of tire 102 is in the rotation of the top of high voltage probe 110, reference electrode 170 can To be positioned to be held against the bead part of tire 102.When high voltage probe 110 passes through the exception for penetrating surface of tyre When, electric discharge will occur between high voltage probe 110 and reference electrode 170.The position of electric discharge provides tire 102 Abnormal position in surface

Indicate.

Detection circuit 120 can be used for detecting the presence of the electric discharge between high voltage probe 110 and reference electrode 170.

Various detection circuits 120 for detecting electric discharge are known.Can be using for detecting high voltage probe 110 And any known detection circuit 120 of the electric discharge between reference electrode 170 is without deviating from the scope of the present disclosure.For example, in spy Determine in embodiment, detection circuit can include the ready-made part from TEI.Detection circuit 120 can include monitoring electricity high The various electronic devices of voltage and/or electric voltage frequency at pressure probe 110.Voltage at high voltage probe 110 and/ Or the change of frequency can indicate the presence of electric discharge.Detection circuit 120 can be with the accurate orientation and footpath for providing instruction electric discharge Coupled to the orientation and radial direction feedback circuit of the position feed back signal of position.In this manner, detection circuit 120 can by with The data that the generation of electric discharge is associated with accurate location are supplied to computing system 140.

Computing system 140 can be used for each side by the control system 100 of controller 150, and storage is simultaneously And the information that analysis is received during tyre inspection process from detection circuit 120.Especially, computing system 140 can be wrapped Include one

Or multiple processors 142, the processor is configured to receive the input number of the data including carrying out self-detection circuit 120 According to and by usable output（For example reach the data or signal of user）It is supplied to process controller 150.For example, specific Embodiment

In,（One or more）Processor 142 can use the data genaration surface of tyre received from detection circuit 120 Figure represent that such as X-Y scheme or other suitable figures are represented.

Various storage/media elements 144 can be as one or more single or multiple part of computer-readable media It is provided, such as but not limited to volatile memory（Such as random access memory（RAM, such as DRAM, SRAM etc.））With Nonvolatile memory（Such as ROM, flash memory, hard disk drive, tape, CD-ROM, DVD-ROM etc.）Any combinations or Any other storage device, including disk, driver, other magnetic base storage media, optical storage medias etc..Although Fig. 1 shows Three independent storage/media elements 144a, 144b and 144c, but the content for being exclusively used in such equipment actually may be used To store in a storage/media elements or multiple element.Use disclosure presented herein, the common skill of this area Art personnel will be appreciated that any such of data storage may modification and other modifications.

Calculating/the processing equipment of Fig. 1 may adapt to be used as by access with computer-reader form store at one or

Multiple storage/media elements（Such as storage/media elements 144b）In software instruction desired function is provided Special purpose machinery.When using software, the combination of any suitable programming language, script or other types of language or language Can be used for realizing teaching contained herein.In other embodiments, method disclosed herein can alternatively by Hardwire

Logic or other circuit realirations, including but not limited to special circuit.Other storage/media elements（Such as storage/matchmaker Volume elements part 144a, 144c）For data storage, the data also can be by（One or more）Processor 142 access and Software instruction according to storage in storage/media elements 144b is worked.For example, storage/media elements 144a can include corresponding to from the generation of electric discharge that obtains of detection circuit 120 and the input data of position and any pre- Determine parameter, such as but not limited to control parameter（Such as high voltage probe parameter, detection circuit parameter, tire rotation parameter, other Suitable control parameter）And tire parameter（Such as tire radius, tyre width, tire summit quality, tire pressure, tire footpath To rigidity, tire shear stiffness, tire flexure rigidity, tire tensible rigidity, tyre surface position, all-purpose tire data etc.）.It is such Predefined parameter can be pre-programmed into storage/media elements 144a or when as input data from access input equipment It is provided for being stored therein during 146 user input.

Input equipment 146 can correspond to be configured to together with image processing system 140 as one of user interface or Multiple ancillary equipment.Exemplary input devices can include but is not limited to keyboard, touch screen monitor, microphone, mouse and its Its suitable input equipment.

Second memory element 144b can include computer executable software instruction, and the computer can perform software Instruction can be by（One or more）Processor 142 reads and performs to act on storage in storage/media elements 144a In

Input data is creating for storing the new output data in the 3rd storage/media elements 144c（Such as anomalous identification And position.Then the chosen part of output data can be supplied to one or more peripheral output devices 148.

Output equipment 148 can correspond to display（Such as monitor, screen or other visual displays）, printing Machine

Deng.The output equipment of another particular form can correspond to process controller 150.In one embodiment, it is excessively program control Device processed 150 is by coordinating the operating parameter of high voltage probe 110, high voltage probe location equipment, tire slewing 130 Overall tire production is helped with other procedure parameters.

With reference to Fig. 2, will discuss now for checking the surface of tire so as to the exemplary automatic tire test for noting abnormalities Method 200.202, method 200 includes that neighbouring surface of tyre places high voltage probe.For example, high voltage probe positioning sets The standby power spring electrode that high voltage probe can be located so that in high voltage probe is pressed against on the surface of tire.To the greatest extent Pipe will discuss the disclosure with reference to the exemplary high voltage probe 310 shown in Fig. 4, but one of ordinary skill in the art It will be understood that any high voltage probe that can be tested using the HVD for being suitable for tire is without deviating from the scope of the present disclosure.For example, In a particular embodiment, high voltage probe can include being positioned to be distributed on the inner surface of tire with by high voltage between tyre bead Mode is suspended in a series of chains and wire loop of inside tires.

204, method 200 includes the bead part positioning reference electrode of neighbouring tire.As below will institute in more detail State, the bead part positioning reference electrode of neighbouring tire is provided and avoids the high voltage probe through the tread portion of tire and reference Replacement discharge path between electrode.

206, method 200 includes making high voltage probe be powered with high voltage.For example, high voltage source can be by for example From about 37.5kV to about 50kV, the high voltage of direct current is supplied to high voltage probe.Once high voltage probe is energized, Method 200 includes applying the relative motion between surface of tyre and high voltage probe, as shown in 208.This can be by around height The surface of voltage probe rotation tire is performed by rotating high voltage probe around the surface of tire.Tire slewing（Example Such as the tire slewing 330 of Fig. 3）It is used around the inner surface that high voltage probe rotates tire.

In a particular embodiment, the relative motion applied between surface and high voltage probe is included in tire around high voltage Radial position is adjusted after the complete revolution of probe.For example, method 200 can include being located so that high voltage probe High voltage probe is held against the surface of tire in the first radial position.Method 200 is then around high voltage probe rotating wheel The revolution of continuous surface at least one of tire.Then high voltage probe is located so that high voltage probe in the second footpath by method 200 The surface of tire is held against to position.Preferably, the second radial position is close to the first radial position.Method 200 and then The secondary revolution of continuous surface at least one that tire is rotated around high voltage probe.In this manner, high voltage probe can be used for The whole inner surface of the tire between scanning tyre bead.

210, method 200 includes electric discharge of the detection at abnormal position between high voltage probe and reference electrode.Such as Upper described, when exception of the high voltage probe being powered with high voltage by the liner for penetrating tire, electric discharge will occur in electricity high Between pressure probe and reference electrode.Once detecting electric discharge, the electric signal for representing the position of electric discharge and occurring can be supplied to meter Calculation equipment is analyzed.For example, in a particular embodiment, the fixation at each radial position on the surface of tire can be directed to The azimuthal point of quantity collects data.Data can include radial position, the high voltage probe of high voltage probe relative to tire table The position of orientation in face and the binary condition of defect detection signal.Collected data then can be used for for example with X-Y scheme or its The figure of the Form generation surface of tyre that its suitable figure is described is described for being observed by operator and being analyzed.

Fig. 3 describes the example tire test device 300 of the exemplary embodiment according to the disclosure.Tire testing is filled Putting 300 includes high voltage probe 310, high voltage probe location equipment 320 and tire slewing 330.Tire slewing 330 Including one or more rollers 332.The bead part of tire 302 is rested on one or more rollers 332.Although not in figure Shown in 3, but the bead part of tire 302 can also be configured to remain adjacent to reference electrode.Roller 332 is configured to for example Motion is applied to tire 302 by the continuous rotation tire 302 in the top of high voltage probe 310.Tire 302 is placed Allow that high voltage probe 310 tests the inner surface of tire 302 to send out in the over top of high voltage probe 310 It is now abnormal.

The first radial position positioning electricity high that high voltage probe location equipment 320 is used on the inner surface of neighbouring tire 302 Pressure probe 310.It is complete that tire slewing 132 continues at least one in the top of high voltage probe 310 rotation tire 102 Whole number of tire revolutions.The second footpath that then high voltage probe location equipment 320 can be used on the inner surface of neighbouring tire 302 High voltage probe 310 is positioned to position.Then tire slewing 330 rotates tire 302 above high voltage probe and holds Continuous at least one complete tyre revolution.Repeat the process until having tested the tyre bead of tire 302 between whole inner surface so as to Note abnormalities.

Fig. 4 provides the perspective of the exemplary high voltage probe 310 in the Tire testing device 300 for Fig. 3 Figure.High voltage probe 310 includes the high voltage tie point for high voltage probe 310 to be connected to high voltage energy source 315.Can be using any suitable connection in paramount voltage energy source without deviating from the scope of the present disclosure.For example, high voltage connects Contact 315 may adapt to receive the shielding from high voltage source, flexible high-tension cable.

High voltage probe 310 also includes insulation shell 314, interval roller 316 and power spring electrode 318.Insulation Housing 314 can be made up of any material of such as high voltage energy of about 50kV direct currents that is enough to insulate.Insulation shell 314 are used for other parts of each part of high voltage probe 310 and Tire testing device and the power spring electrode being energized 318 insulation.

Power spring electrode 318 is used to be applied to high voltage energy the surface of tire.Power spring electrode 318 has There are shape and the configuration for being suitable for being pressed against when being spaced roller 316 and keeping and contacting with surface of tyre on the surface of tire.Work as pressure During contracting power spring electrode 318, the elasticity of power spring electrode 318 makes power spring electrode 318 be protected with surface of tyre Contact is held, even if power spring electrode 318 is by the small elevation of surface of tyre.In this manner, Tire testing device 300 Error influences and provides abnormal more accurate detection caused by being not easily susceptible to the small elevation change by surface of tyre.

Power spring electrode 318 can be made up of any suitable conductive material.For example, in a particular embodiment, leading Electrical spring electrode 318 is made up of steel.However, other suitable conductors can be used to construct power spring electrode as needed 318, such as aluminium, copper, gold etc..

Fig. 5 describes the positioning exemplary reference of bead part 306 electrode 370 of neighbouring tire 302.Reference electrode 370 can be couple to reference voltage, such as earthing potential.Reference electrode 370 includes conductive plate, when tire 302 is around height The conductive plate is suitable for being held against the bead part 306 of tire 302 when voltage probe 310 rotates.In a particular embodiment, lead Electroplax can have a certain degree of elasticity to cause that conductive plate remains adjacent to the bead part of tire.Reference electrode 370 can be with The tire slewing 330 of Fig. 3 is installed to so that the bead part 306 of tire 302 rests on reference electrode 370 On.When the tire slewing 330 of Fig. 3 rotates tire 302 around high voltage probe 310, the tire of tire 302 Circle part 306 remains adjacent to reference electrode 370.

Conductive plate can be constructed by any suitable conductive material.For example, in a particular embodiment, conductive plate is by steel group Into.However, other suitable conductors can be used to construct power spring electrode 318, such as aluminium, copper, gold etc. as needed.

Shown in Fig. 5 for the electric discharge from the arrival reference electrode 370 of high voltage probe 310 by tire 302

Exemplar conductive path.As illustrated, high voltage probe 310 is positioned adjacent to the inner surface of tire 302.With reference to electricity Pole 370 positions adjacent to the bead part 306 of tire 302.Once it is energized, if high voltage probe 310 is by surface of tyre In exception, then electric discharge will occur between high voltage probe 310 and reference electrode 370.The electric discharge is not passed through tire 302 fetus face 304.On the contrary, electric discharge will be conducted through one or more casingplies 365 in tire 302.Such as Shown in arrow 317, electric discharge will reach the bead part of tire 302 from high voltage probe 310 through casingply 365 Divide 306.Then electric discharge will pass to reference electrode 370.This provides lower resistance and more consistent conductive path for electric discharge.

For example, as shown in Fig. 5, the tread portion 304 of tire 302 includes many layers and material, including one Or multiple casingplies 365 and other layers 305.Through the tread portion of tire electric discharge have to pass through liner, one or many Individual casingply 365 and other layer 305.And, tread thickness and chemical composition will also influence the electricity of discharge path Resistance.

By comparison, reference electrode 370 is kept by the bead part 306 of neighbouring tire 302, electric discharge only must Must be through liner and one or more casingplies 365.Because discharge path passes through less material, therefore discharge path Resistance will be lower.This allows lower high voltage energy during tyre inspection process to be applied to high voltage probe 310.For example, Compared with 50kV when reference electrode remains adjacent to the tread portion 304 of tire 302,37.5kV direct currents may be enough to generate electricity high Electric discharge between pressure probe 310 and reference electrode 370.It has been shown that the bead part 306 of neighbouring tire 302 is positioned Reference electrode 370 produces less error detection of surface abnormalities.

Although describing this theme in detail on specific illustrative embodiment and its method, when acquisition foregoing teachings Understanding when it will be appreciated by those of skill in the art that can easily produce the change of such embodiment, modification and equivalent replace Change.Therefore.The scope of the present disclosure is not excluded for including the general of this area as just example not as limitation, and the disclosure The obvious such modification to this theme of logical technical staff, modification and/or increase.

Claims (7)

1. a kind of method that high-voltage discharge for tire is tested, it includes：Place high voltage probe in the surface of neighbouring tire； The bead part of the neighbouring tire places reference electrode；The high voltage probe is set to be powered；Apply the high voltage probe and Relative motion between the surface of the tire；And detect one between the high voltage probe and the reference electrode or Multiple electric discharge is of the presence of an anomaly with one or more in the surface for detecting the tire.

2. the high-voltage discharge method of testing of tire is used for according to claim 1, wherein one or more of electric discharges It is conducted through one or more casingplies of the tire.

3. the high-voltage discharge method of testing for tire according to claim 1, wherein the reference electrode includes The conductive plate contacted with the bead part holding of the tire.

4. the high-voltage discharge method of testing for tire according to claim 1, wherein the high voltage probe bag Include the power spring electrode being pressed against on the surface of the tire.

5. the high-voltage discharge method of testing for tire according to claim 1, wherein apply the high voltage visiting Relative motion between head and the surface of the tire includes rotating tire around the high voltage probe with tire slewing Inner surface.

6. the high-voltage discharge method of testing for tire according to claim 5, wherein methods described include working as institute State the surface of tire around the high voltage probe rotate when keep the reference electrode against the bead part of the tire.

7. the high-voltage discharge method of testing for tire according to claim 1, wherein apply the high voltage visiting Relative motion between head and the surface of the tire includes：The high voltage probe is positioned so that the high voltage probe is One radial position keeps contacting with the surface of the tire；Rotated around the surface of the high voltage probe with tire slewing The inner surface of the tire continues at least one revolution；The high voltage probe is positioned so that the high voltage probe is in the second footpath Keep contacting with the surface of the tire to position；And with the tire slewing around the surface of the high voltage probe Rotate the revolution of continuous surface at least one of the tire.