KR100822446B1 - Coil wedge inspecting device using supersonic waves - Google Patents

Abstract

An apparatus for automatically inspecting a coil wedge of a generator using a supersonic wave is provided to acquire a reliable inspection result and shorten an inspection time by automatically inspecting the coil wedge. An apparatus for automatically inspecting a coil wedge of a generator using a supersonic wave includes a transfer rail(100), a mover(200), a detection unit. The transfer rail is linearly installed along a length direction of a wedge formed on a surface of a rotator of a generator, and provides a transfer path of the mover. The mover is coupled to the transfer rail, and performs linear movement along the transfer rail. The mover transfers a detection unit installed on an upper part along the transfer rail. A detection unit is installed on the mover. The detection unit has a gear unit, an ultrasonic head unit, and a control unit. The gear unit has a first motor which provides a power for the mover to move along the transfer rail linearly. The ultrasonic head unit has a probe which detects a wedge by generating an ultrasonic, and a plurality of connection rails which adjusts a height and a distance of the probe. The control unit transfers the probe along the transfer rail by controlling the gear unit and the ultrasonic head unit. The control unit generates the ultrasonic wave from the probe and performs an inspection of the coil wedge. The control unit displays, stores and determines the inspection results.

Description

Coil wedge inspecting device using Supersonic waves

1 is an enlarged cross-sectional view of a part of a rotor of a generator configured with a wedge;

2 is a perspective view of a wedge;

Figure 3 is a perspective view of the coil wedge inspection apparatus of the generator using ultrasonic waves according to the present invention.

Figure 4 is a perspective view showing a state installed wedge inspection apparatus according to the present invention.

5 to 7 is a view showing a transport rail of the wedge inspection apparatus of the present invention,

5 is a perspective view.

6 is a cross-sectional view taken along line A-A of FIG.

Figure 7 is a perspective view showing a state in which a plurality of transfer rails are connected.

8 and 9 are views showing the transporter of the wedge inspection device of the present invention,

8 is a perspective view.

9 is a front view.

10 to 14 is a view showing the probe means of the wedge inspection apparatus of the present invention,

10 is an exploded perspective view.

11 is a perspective view illustrating a distance adjusting function of an ultrasonic head unit;

12 is a perspective view showing an ultrasonic head unit having a plurality of transducers.

Fig. 13 is a plan view for explaining the function of the counter unit;

14 is a block diagram showing a configuration of a control unit.

<Description of the symbols for the main parts of the drawings>

10: wedge 100: transfer rail

101: rack gear 200: feeder

201: space part 202: first through hole

300: probe means 301: pinion gear

302: first motor 303: transducer unit

304: first connecting rail 305: second connecting rail

306: third connecting rail 307: fourth connecting rail

308: spring 309: connecting piece

310: cam 311: second motor

312: counterwheel 313: light sensor

314: control unit 315: second through hole

316: protrusion 317: through hole

The present invention relates to an inspection apparatus for inspecting the coil fixing wedge of the generator, and more particularly, automatically inspects the wedge inside the generator by ultrasonic waves while moving along the feed rail at a constant speed, and automatically records the inspection result. And a coil wedge inspection apparatus for a generator using ultrasonic waves to be stored.

In general, the rotor of the generator is made of a high-speed rotating body of a large load configured with a coil for power generation therein, the inside is provided with a straight wedge for pressing and supporting the coil.

1 is an enlarged cross-sectional view of a part of a rotor of a generator having such a wedge, and FIG. 2 is a perspective view of the wedge.

As shown in FIGS. 1 and 2, the wedge 10 has a straight shape and is coupled to the outside of the coil 20 to prevent the coil 20 from being separated due to the rotation of the rotor 30. A pair of protrusions 11, 12, 13, and 14 are formed at both sides thereof, respectively, to form a structure that is coupled to the rotor 30.

As such, the rotor of the generator including the wedge 100 rotates more than 60 times per second, especially in the case of a large-sized generator of a rotary armature type, so that when used for a long time, shaking or rotating of the metal structure due to the rotation of the rotor 30 may occur. Cracks may occur in the wedge 10 due to a change in state, and in some cases, the wedge 10 may be dislodged.

In addition, such cracks, departures, etc. may be no longer available due to a failure of the generator if such a state is left for a long time.

Accordingly, regular inspection is necessary to maintain the integrity of the wedge. In the related art, the operator manually performs an ultrasonic inspection every predetermined period (about 4 years) according to the generator manufacturer's recommended standard to obtain the inspection result. I'm trying to.

This manual inspection causes a lot of time due to the worker's fatigue as the manual inspection of many points is performed manually, and it takes a lot of time. In particular, there may be a difference in experience and skills for each worker, and inconsistent operation. The reliability of the results can depend on the integrity of the operator and the worker.

In addition, during the inspection operation, the generator rotor is drawn out and placed on the workbench. The middle and lower end portions are inconvenient due to the narrow space and difficult to perform the inspection itself.

In addition, it is generally difficult to store the inspection results when performing the manual inspection, and data is not often stored separately, so that continuous management of the management data is impossible.

The present invention has been proposed to solve the above problems, and forms a conveying rail along the coil wedge to be inspected, and proposes a wedge inspection apparatus for automatically inspecting by ultrasonic waves while moving at a constant speed along the conveying rail. Therefore, the object of the present invention is to secure reliable test results and to shorten the test time.

In addition, the present invention controls the inspection apparatus by the user's adjustment to facilitate the ultrasonic inspection, and automatically record and store the inspection result waveform to enable continuous management of the data.

In addition, an object of the present invention is to enable to perform the ultrasonic test remotely, the object of the present invention is to smoothly and consistently perform the ultrasonic test regardless of space.

In order to achieve the above object, the coil wedge inspection apparatus for a generator using ultrasonic waves in accordance with the present invention is a device for inspecting a wedge to prevent the departure of the generator rotor coil,

A transport rail installed in a straight line along the longitudinal direction of the wedge configured on the generator rotor surface and providing a transport path of the transporter;

A transporter coupled to the transport rail to perform a linear motion along the transport rail, and transport the probe means mounted on the upper part along the transport rail;

Is fixed to the transporter,

A gear part including a first motor for providing power to the conveyer to perform a linear motion along the conveying rail,

Ultrasonic head unit comprising a transducer unit for generating a ultrasonic wave to inspect the wedge to be inspected, the structure coupled to a plurality of connection rails capable of adjusting the height and distance to one side of the transducer unit,

A tom comprising a control unit which controls the gear unit and the ultrasonic head unit to transfer the transducer unit along a transfer rail, generates ultrasonic waves from the transducer unit to perform an inspection operation of the coil wedge, and displays and stores the inspection result. Characterized in that it comprises a contact means.

In addition, a rack gear is provided on the upper side of the transfer rail,

The upper surface of the conveyer is configured with a first through-hole at a position corresponding to the rack gear, and a space portion corresponding to the shape of the conveying rail is formed therein, and a portion of the conveying rail is fitted into the space portion.

The gear part of the probe means is provided with a second through-hole at a position corresponding to the rack gear, and is provided with a pinion gear that receives power from the first motor and acts as a rack gear through the second through-hole. It is done.

In addition, the ultrasonic head portion is provided on one side of the plurality of connecting rails to provide an elastic force to the transducer unit, a connecting piece for acting with the spring to change the distance between the wedge to be inspected and the transducer unit, and rotates on the connecting piece And a second motor configured to provide a driving force to the cam, and a cam configured to apply a predetermined pressure by the cam.

In addition, the probe means is connected to the first motor and formed in a disk shape formed with a plurality of holes along the circumference of the counterwheel to rotate in conjunction with the rotation of the pinion gear, and acts in conjunction with the plurality of holes of the counter wheel transfer Characterized in that it further comprises a counter unit consisting of an optical sensor for counting the distance.

In addition, the control unit is a CPU with a built-in ultrasonic test execution program for controlling the movement direction, progress, stop, storage of the test results, and ultrasonic generation of the transfer on the transfer path provided by the transport rail, and storing the test results And a memory unit for displaying a test result to the outside, and a power supply unit for supplying a power voltage to each component.

In addition, it characterized in that the locking step formed on both ends of the transfer rail to prevent the departure of the transporter.

In addition, coupled to both sides of the conveying rail, a pair of rail conveying device for circular movement of the conveying rail along the generator rotor surface, and

It is coupled to each of the pair of rail transfer device, characterized in that it further comprises a pair of circular rail made of a circular along the surface of the generator rotor in a vertical direction with the transfer rail to provide a transfer path of the rail transfer device do.

Referring to the embodiment shown in the accompanying drawings of the present invention having such a feature will be described in detail the configuration and operation process as follows.

Figure 3 is a perspective view showing a coil wedge inspection apparatus of the generator using the ultrasonic wave according to the present invention, Figure 4 is a perspective view showing a state in which the wedge inspection apparatus is installed.

As shown in Figures 3 and 4, the wedge 10 inspection apparatus according to the embodiment of the present invention passes through the through-hole 31 of the rotor 30 of the generator and along the longitudinal direction of the wedge 10 A transport rail 100 installed in a straight line and providing a transport path;

A transporter 200 coupled to the transport rail 100 to perform a linear motion along the longitudinal direction of the transport rail 100, and transport the mounted probe means 300 along the transport rail 100;

Mounted and fixed to the transporter 200, comprising a gear unit, an ultrasonic head unit, a counter unit, a control unit made of a probe means 300 for performing the inspection operation of the wedge 10 by the ultrasonic wave.

5 to 7 is a view showing a transport rail of the wedge inspection device of the present invention, Figure 5 is a perspective view, Figure 6 is a cross-sectional view AA of Figure 5, Figure 7 is a perspective view showing a plurality of transport rails connected. .

5 and 6, the transfer rail 100 is cross-shaped cross-shaped, the rack gear (rack gear) to work with the pinion gear 301 of the probe means 300 to be described later upwards 101 is provided. The rack gear 101 may be configured to be detachable as necessary as a horizontal gear coupled to the upper side in the longitudinal direction of the transfer rail (100).

The transfer rail 110 may be formed with a locking step on both the left and right sides to prevent the transporter 200 performing horizontal movement along the rack gear 101 from being separated from the transport rail 100.

In addition, the plurality of transfer rails 100 may be provided and connected to each other. For this purpose, the concave-convex portions 103 and 104 may be formed on both side surfaces connected to each other as shown in FIG. 7. When the plurality of transport rails 110 are connected and used in this way, the transport distance can be variously set and secured according to the size, shape, and structure of the generator.

8 and 9 are views showing the conveyor of the present invention wedge inspection apparatus, Figure 8 is a perspective view, Figure 9 is a front view.

As shown in Figure 8 and Figure 9, the carrier 200 is made of a metal cube shape, a space 201 is made of cross-shaped cross section to correspond to the shape of the transfer rail (100) therein The space portion 201 extends to the front and rear surfaces and the bottom surface so that the front and rear surfaces of the transporter 200 are opened in a cross shape, and the bottom surface is opened in a straight shape. The conveying rail 100 is inserted into the space portion 201 so as to surround a portion of the outer side 10, and the conveyer 200 is formed by the action of the rack gear 101 and the pinion gear 301. Along the longitudinal direction.

In addition, the upper surface of the transporter 200 is configured with a rectangular first through-hole 202 connected to the space portion 201 at a position corresponding to the rack gear 101, the probe means 300 to the upper side ) Is fixed to mounting. Therefore, the pinion gear 301 provided in the probe means 300 meshes with the rack gear 101 of the transfer rail 100 through the first through hole 202, thereby transferring the carrier 200 and the probe. The stage 300 may move along the transfer rail 100.

10 to 14 is a view showing the probe means of the wedge inspection device of the present invention, Figure 10 is an exploded perspective view, Figure 11 is a perspective view illustrating the distance control function of the ultrasonic head portion, Figure 12 is provided with a plurality of transducers A perspective view of the ultrasonic head portion. 13 is a plan view for explaining the function of the counter unit, and FIG. 14 is a block diagram showing the configuration of the control unit.

As shown in Figure 10, the probe means 300 is configured so that each component is fixedly positioned on the square plate, the pinion gear 301 and the pinion gear 301 acting with the rack gear 101, the rotational force Gear part consisting of a first motor 302, which provides a

A first connecting rail 304 and a second connecting rail configured to have a bearing configured to adjust the height and distance of the transducer unit 303 for generating ultrasonic waves and inspecting the wedge 10 in a vertical horizontal direction of the transducer unit 303 ( 305, a third connecting rail 306, and a fourth connecting rail 307, and a spring 308 configured below the fourth connecting rail 307 to provide elastic force to the transducer unit 303 and the A connecting piece 309 which works with the spring 308 to apply a constant pressure to the transducer unit 303 to maintain a constant distance from the wedge 10 to be inspected, and a protrusion that applies a predetermined pressure to the connecting piece 309 ( Ultrasonic head portion consisting of a cam (310) consisting of 316, and a second motor (311) for providing a driving force to the cam (310),

The counter wheel 312 is connected to the first motor 302 which provides the driving force to the pinion gear 301, and is formed in a disk shape having a plurality of through holes formed along the circumference thereof to rotate in engagement with the rotation of the pinion gear 301. And a counter unit including an optical sensor 313 which works with a plurality of through holes 317 of the counter wheel 312 to count a feeding distance.

The probe unit 303 is moved along the transfer rail 100 in conjunction with the gear unit, the ultrasonic head unit, and the counter unit, and ultrasonic waves are generated from the mounted transducer unit 303 to perform inspection of the wedge 10. And it comprises a control unit for displaying the inspection results, determine the storage and transport distance.

First, the gear unit provides a driving force for transporting the probe means 300 and the transfer device coupled to the probe means 300 along the transfer rail 100 by the first motor 302. It has a configuration that can control the speed and forward and reverse rotation. Accordingly, the pinion gear 301 formed on the rotation shaft of the first motor 302 enters into the groove through the second through hole 315 and the first through hole 202 formed in the carrier 200, and protrudes. In contact with the rack gear 101, the rotational force of the first motor 302 is transmitted to the rack gear 101 via the pinion gear (301). To this end, a second through hole 315 is formed at a corresponding position of the rack gear 101 and the pinion gear 301.

According to such a structure, as the first motor 302 rotates, the pinion gear 301 rotates, and the feeder 200 is caught by the repulsive force while being caught by the rack gear 101 provided on the upper side of the transfer rail 100. Is to move along the transfer rail (100).

The ultrasonic head unit is configured with a transducer unit 303 for generating ultrasonic waves to the upper side, and below the first connecting rail 304, the second connecting rail 305, the third connecting rail 306, and the fourth connection. The rails 307 are connected in sequence. First, the transducer unit 303 is formed to have a predetermined angle is made of a structure that can be exchanged removable. The first connection rail 304 and the second connection rail 305 are configured to be slidable by mutual rod bearings to facilitate distance adjustment between the probe unit 303 and the inspection part. In addition, the third connection rail 305 and the fourth connection rail 306 is coupled to the lower side of the first connection rail 304 and the second connection rail 305 in the vertical direction to adjust the height of the transducer unit 303 It is made of a structure slidable by mutual rod bearings to enable this. Accordingly, the transducer unit 303 is perpendicular to the inspection site by the first connection rail 304, the second connection rail 305, the third connection rail 306, and the fourth connection rail 307. Easy to adjust height and distance horizontally.

In particular, in the case of the coil wedge 10 to be inspected, since a pair of protrusions 11, 12, 13, and 14 are formed on both sides, fine distance adjustment is required during the inspection work. To this end, in the embodiment of the present invention, as shown in FIG. 11, the second motor 311 is repeatedly configured to provide a driving force for a predetermined time to enable fine distance adjustment to the lower side of the fourth connection rail 307. The cam 310 rotates by the driving force of the two motors 311 and the cam 310 having the protrusion 316 is formed, and the connecting piece 309 which performs the reciprocating motion according to the action of the protrusion 316 by the rotation of the cam 310 and the The distance between the transducer unit 303 and the wedge 10 is appropriately adjusted by the action of the spring 308 to restore the transducer unit 303 moved by the action of the connecting piece 309.

Here, the transducer unit 303 constitutes a plurality of ultrasonic transducers 318 and 319 on both sides as shown in FIG. 12, and the left protrusions 11 and 12 and the right protrusions 13 and 14 of the wedge 10 are formed. It can also be configured to allow inspection at the same time. At this time, in order to prevent the interference of the ultrasonic waves generated from each of the ultrasonic transducers 318 and 319, it is preferable to dispose the position slightly.

In addition, the support rod 320 may be further configured to be coupled to both sides of the transducer unit 303. The support rod 320 may be connected to an elastic body such as a spring to one side, and the transducer unit 303 may be caused by the action of the elastic body. By providing a proper pressure), it is easier to adjust the distance between the inspection site and the ultrasonic transducers 318 and 319.

In addition, the counter wheel 312 of the counter part rotates together with the pinion gear 301 by the driving of the first motor 302, and has a disk shape having a plurality of through holes 317 formed along its periphery. As described above, the optical sensor 313 counts the number of passes through the through hole 317 to determine the transfer distance on the transfer rail 100.

As shown in FIG. 14, the control unit 314 stores the moving direction, progress, stop, current driving position, driving amount, driving section, and inspection result of the transporter 200 on the transport path provided by the transport rail 100. A CPU with a built-in ultrasonic test execution program for controlling a light source and controlling the generation of an ultrasonic wave, a memory unit for storing test results including detection of an abnormal signal, an alarm, and a location of occurrence, a display unit for displaying the test results externally; It comprises a key input unit of the operator and a power supply for supplying a power voltage to each component.

The control unit 314 controls the transporter 200 coupled to the probe means 300 to perform ultrasonic inspection while linearly moving along the transport rail 100, and according to the operator's selection, the automatic mode or a predetermined key input. Provides a manual mode that allows the operator to adjust and perform the inspection.

Therefore, the controller 314 is configured with a key input unit for operator key input, such as mode selection for performing an ultrasound test, rotation control of the first motor 302 and the second motor 311. Such a key input unit may be further provided to a wireless remote controller.

In addition, the control unit 314 configures a display unit for displaying the operator's key selection, the inspection progress status, the result, and the like, and through the display unit, the operator's key selection, the current setting, the inspection section setting value, the unit inspection section setting, the present The position of inspection, abnormal signal position, reset, forward / reverse rotation of motor, change of numerical value, moving distance, number of inspection can be indicated by numbers and letters.

The control unit 314 is configured with a power supply unit, the power supply unit is configured to provide the operating power supply voltage required for each circuit and the driving power supply voltage of the first motor 302 and the second motor 310, the charging circuit It is configured to charge the internal battery as usual, and configured to supply power from the internal battery when there is no external power.

The operation of the control unit 314 as described above can be controlled through the CPU, the operation command to the first motor 302 and the second motor 303 through the CPU, it is possible to set the inspection length and the moving distance once In addition, when an abnormal signal occurs during the inspection operation, an alarm is automatically sent through the display unit, and the inspection waveform can be automatically stored. In addition, when the use distance of the transducer unit 303 reaches the set value, the inspection is stopped or automatically returned. In particular, when a plurality of abnormal signals are generated (up to 10 in the embodiment of the present invention), the respective positions are all stored and displayed, and upon automatic return, the signals are returned to the position of the first abnormal signal.

Referring to the operation of the present invention having such a configuration as follows.

First, check the inspection site of the wedge 10 configured to the inside of the generator 30, in consideration of the length of the wedge 10 to install the transfer rail (100). At this time, depending on the size of the generator 30 and the length of the wedge 10 may be used by connecting a plurality of transfer rail (100).

Next, the connector 200 is inserted into the outside of the transfer rail 100, and the probe means 300 is mounted above the connector 200. At this time, the rod bearing of the connecting portion of the first connecting rail 304 and the second connecting rail 305 of the probe means 300, and the connecting portion of the third connecting rail 306 and the fourth connecting rail 307 The sliding degree of the can be adjusted.

Here, the connector 200 and the probe means 300 may be combined first, and may be mounted on the transfer rail 100.

The operator then selects an automatic or manual mode using the key input unit of the control unit 314 to perform an ultrasonic test on the coil wedge 10.

Accordingly, the controller 314 controls the ultrasonic head, and drives the first motor 302 to rotate the pinion gear 301. That is, when the pinion gear 301 rotates, the pinion gear 301 is caught by the rack gear 101 engaged with the pinion gear 301, and the probe means 300 and the carrier 200 are moved along the transfer rail 100 by the repulsive force.

At the same time, the control unit 314 rotates the cam 309 by repeatedly driving the second motor 311 at a certain moment. That is, the projection 316 acts on the connecting piece 309 by the rotation of the cam 309, the first connecting rail 304, the second connecting rail 305, the third connecting rail 306, and the fourth By performing a reciprocating motion on the transducer unit 303 and the inspection target wedge 10 coupled to the connection rail 307, ultrasonic inspection of each of the protrusions 11, 12, 13, 14 on both sides of the wedge 10 is performed. The test result waveform can be classified and saved.

At this time, the driving speed and the driving time of the second motor 311 is appropriately set according to the size and shape of the wedge 10 to be inspected, the driving of the first motor 302 and the second motor 311 ) Are independent of each other.

As the test operation progresses, the test result waveform detected by the ultrasonic head unit 300 is stored in the storage unit and displayed on the display unit. At this time, the control unit 314 determines the transport distance by counting the number of light passing through the through hole 317 of the counter wheel 312. As a result of the determination, when the transfer of the length of the pre-stored inspection target wedge 10 is completed, the inspection is terminated, and the inspection operation for one wedge 10 is completed by notifying the operator with an alarm by displaying this on the display means.

Thereafter, the transfer rail 100, the carrier 200 and the probe means 300 is moved to the next wedge 10 to repeat the inspection operation as described above.

Accordingly, in order to more smoothly perform the repeated inspection and movement along the wedge 10, as shown in Figure 15 are coupled to both sides of the transfer rail 100, the transfer rail 100 to the generator rotor (30) coupled to the pair of rail feeder 400, and the pair of rail feeder 400 for circular motion along the surface, respectively, generator rotor 30 in a vertical direction with the transfer rail (100) A pair of circular rails 500 may further include a circular rail 500 formed along a surface to provide a transfer path of the rail transfer device 400.

That is, a feed means such as a rack gear is formed outside the pair of circular rails 500, and a pinion gear and a pinion are included in the rail feeder 400 in which a portion of the circular rail 500 is fitted. The motor is provided to provide a driving force to the gear, so that the rail feeder 400 and the feed rail 100 may be circularly moved along the surface of the generator rotor according to the driving of the motor.

Therefore, the carrier 200 performs an ultrasonic test with respect to one wedge 10 while performing a linear motion along the conveyance rail 100, and transfers the conveyance rail 100 to the next wedge 10 to perform the linear motion. By performing the inspection again, it is possible to repeatedly carry out the inspection until the rotational movement of the transfer rail 100 is completed. As a result, the transfer rail 100 and the coupled rail transfer device 400 perform one rotational circle movement along the circular rail 500, thereby completing all ultrasonic inspection work on the wedge 10 of the generator coil 20. do.

The present invention is not limited to the above-described embodiments, and technical ideas that can be modified and converted by those skilled in the art to which the present invention pertains without departing from the gist of the present invention also belong to the following claims. Should be seen.

When applying the present invention as described above, since the inspection apparatus moves automatically by ultrasonic waves while moving at a constant speed, it is possible to secure more reliable inspection results and to shorten the inspection time than inspection by manual.

It also automatically records and stores test results waveforms, allowing for continuous management of data.

In addition, since the ultrasound can be performed remotely, the ultrasound can be smoothly and consistently performed regardless of a narrow space.

Claims (8)

In the device for inspecting the wedge to prevent the generator rotor coil from falling off, A transport rail installed in a straight line along the longitudinal direction of the wedge configured on the generator rotor surface and providing a transport path of the transporter; A transporter coupled to the transport rail to perform a linear motion along the transport rail, and transport the probe means mounted on the upper part along the transport rail; Is fixed to the transporter, A gear part including a first motor for providing power to the conveyer to perform a linear motion along the conveying rail, Ultrasonic head unit comprising a probe unit for generating a ultrasonic wave to inspect the wedge to be inspected, the structure coupled to a plurality of connection rails capable of adjusting the height and distance to one side of the transducer unit, A control unit configured to control the gear unit and the ultrasonic head unit to transfer the transducer unit along a transfer rail, generate ultrasonic waves from the transducer unit to perform an inspection operation of the coil wedge, and display, store and determine the inspection result. An apparatus for inspecting coil wedges of a generator using ultrasonic waves, comprising a chuck means. The method of claim 1, The rack gear is provided on the upper side of the conveying rail, The upper surface of the conveyer is configured with a first through-hole at a position corresponding to the rack gear, and a space portion corresponding to the shape of the conveying rail is formed therein, and a portion of the conveying rail is fitted into the space portion. The gear part of the probe means is provided with a second through-hole at a position corresponding to the rack gear, and is provided with a pinion gear that receives power from the first motor and acts as a rack gear through the second through-hole. Coil wedge inspection apparatus of the generator using the ultrasonic wave. The method of claim 1, The ultrasonic head portion is provided on one side of the plurality of connection rails to provide an elastic force to the transducer unit, a connecting piece for acting with the spring to change the distance between the test wedge and the transducer unit, and the connecting piece by rotation An apparatus for inspecting the coil wedge of a generator using ultrasonic waves, characterized in that it further comprises a cam configured with a protrusion applying a predetermined pressure, and a second motor providing a driving force to the cam. The method of claim 1, The coil wedge inspection apparatus of a generator using ultrasonic waves, characterized in that a plurality of ultrasonic transducers are configured in the transducer unit. The method of claim 1, The probe means is connected to the first motor for providing a driving force to the pinion gear is made of a disk shape formed with a plurality of through holes along the periphery of the counter wheel to rotate together with the rotation of the pinion gear, a plurality of the counter wheel The coil wedge inspection apparatus of the generator using ultrasonic waves, characterized in that it further comprises a counter portion made of an optical sensor that acts through the hole to count the transport distance. The method according to any one of claims 1 to 5, The control unit is a CPU with a built-in ultrasonic test execution program for controlling the movement direction, progress, stop, storage of the test results, and ultrasonic generation of the transfer on the transfer path provided by the transfer rail, and a memory for storing the test results And a display unit for displaying an inspection result to the outside, and a power supply unit for supplying a power voltage to each component. The method according to any one of claims 1 to 5, The coil wedge inspection apparatus of the generator using ultrasonic waves, characterized in that the engaging jaw is formed on both ends of the conveying rail to prevent the transfer of the conveyer. The method according to any one of claims 1 to 5, A pair of rail conveying apparatuses coupled to both sides of the conveying rails to circularly convey the conveying rails along the generator rotor surface; And a pair of circular rails coupled to the pair of rail feeders, each pair being circular along the generator rotor surface in a vertical direction with a feed rail to provide a feed path of the rail feeder. Coil wedge inspection device of the generator using ultrasonic.

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