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DESCRIPTION JPS5749858

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DESCRIPTION JPS5749858
Description 1, title of the invention
Ultrasound probe
3. Detailed Description of the Invention The present invention relates to an ultrasound probe, in
particular, an ultrasound probe for moving on the surface of an object to obtain all internal
defect signals and irradiating ultrasound from the surface to the inside. The present invention
relates to an ultrasonic probe which is formed of a flexible film transparent to the above, and
which has an ultrasonic medium and an ultrasonic oscillator all inside of a rotatable pillow
member. Although a pillow-shaped probe drive device with a wheel shape is commercially
available and is used for defect detection in thin plates using the entire plate wave method, etc.,
the wheel width is narrow and a single search is common in general applications. Because the
stylus is used, it is not possible to perform vertical flaw detection in a wide area and all efficiency,
and since the test object is in contact only with the tip of the arc, it also limits the entire effective
range of the used probe, etc. There was a disadvantage of According to the present invention, all
the above-mentioned drawbacks, the contact with the object to be examined and the entire
surface are brought into contact, the structure is also expanded in the axial direction, and the
inspection effective range is provided by arranging several probes all over one or several rows.
While improving the speed of the inspection and improving the speed of the inspection, the
inspection of the shape of the object V can be made all possible, and further the ultrasonic probe
drive device from obstacles etc.? It also adds all the mechanisms that protect and the ultrasound
from the probe follows the shape of the object. In the following, the embodiments of the present
invention will be described in detail by means of EndPage: 1 in the attached drawings. FIG. 1 is a
front view of an embodiment of the present invention, FIG. 2 is a side view, and FIG. 3 is a top
view 2. Reference numerals 1 and 2 denote front and rear drive wheels that move while rotating
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the entire test surface The belt is a pillow member covered with a neoprene rubber film so as to
rotate in the same direction as the drive wheel. The end face central part of this pillow is an air
gap. 1 to "+1 to b" and 2 to a and 2 to b are projected from the gap of the rubber film rod by the
support shaft for the driving wheel, and are rotatably fixed to the side plates of 4 to a and 4 to b.
A support rack 5 is rotatably fixed to the support shafts 6 a and 6 b at substantially the center of
the side plate. Further, the probe mounting seats 7a and 7b are attached through the entire gap
of the rubber film from the side plate, and the probe group 8 is fixed to the mounting seats and
embedded in the ultrasonic medium 27. One end of the connecting member 9 is rotatably
coupled to the upper portion of the support frame 5 by bearings 9 to a responsive to the axial
inclination of the drive wheel, and the other end is a power to drive the entire ultrasonic probe
drive device. The rotary automatic 9-b is mounted on the movable wheel shaft 10 of the unit (not
shown). A sprocket 11 for a chain is fixed to the driving wheel shaft, rotates according to the
rotation of the driving wheel 12, and is rotatably held by the chain 13 on the supporting shafts
6-a. It is transmitted to a, is transmitted to the support shaft upper sprocket 15 for one drive
wheel from 14 to b, and the sprocket 16 fixed to the drive wheel 1 and the support shafts 1 to a
for the drive wheel rotates all.
The rotation of the sprocket 16 is transmitted through the entire chain 17 to the drive wheel
support shaft 2 to the aK fixed sprocket 18, and the drive wheel 2 is forced to rotate. That is, in
the present embodiment, all the test pieces of the rubber film 6 ((The amount of the rubber film
and the test object can be determined by forcibly rotating the drive wheels 1 and 2 to be moved
synchronously with the power wheel 10 of the power unit The drive wheels 1 and 2 can all be
inclined relative to the support rack 5, and the support rack 5 can all be inclined relative to the
connecting member 9 in the drive wheel axis direction. The connecting member 9, the support
rack 5, and the drive wheels 1 and 2 can be moved up and down as the entire rotation center.
Further, in the present embodiment, all of the array type probes of the electronic scanning type
are used as a probe, and therefore the detection of the position in the scanning direction (X axis)
is performed by an electric signal corresponding to the pinch of the probe. The detection of the
position of the drive wheel in the direction of travel (Y axis) is performed on a detection system
(not shown) mechanically coupled to the drive wheel. Probes of the electronic scanning type are
arrayed in an array of strip probes all in a row, and any number of them is used for transmission
and reception at the same time, and those which scan as an arbitrary number of strips as a pinch
are generally square or The circular side-D is arranged in one row or several rows of all the
probes, and from the installed mechanical position of each probe, the entire position of the X axis
of the activated probe is detected. Furthermore, all flaw detection on the X axis is performed by
mechanically reciprocating one or several probes on one axis or several axes, and an interlocked
position detection device such as a potentiometer, an output of an encoder, or The pulse motor is
detected by the number of pulses applied to it. Although not shown in particular, the mechanism
for electrical wiring and probe movement to these probes is performed by effectively using the
entire gap of the rubber film as the two side plates, and the inside of the rubber film The hoses
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for the entire population of the ultrasound medium (e.g. water) are likewise carried out.
Furthermore, ultrasound? In order to shut off the entire air layer, it is necessary to improve the
adhesion between the test object and the rubber film as well, and it also has the function of
ejecting the medium all over the surface of the rubber film and the object surface ahead of the
traveling direction. There is. 4 and 5 show a front view and a top view 2 of another embodiment,
and in the above embodiment, the probe drive device is moved by a separately provided portable
device. However, in this embodiment, all direct drive power sources are added. In the figure,
reference numeral 19 denotes a drive wheel and a supporting frame of a motor, and all 20 to a
and 20 to b probe mounting seats are fixed. The motor mounting seat 21 fixed on the support
stand ((The motor 22 with a reduction gear is attached, The driving sprockets 23-a and 23-b are
fixed on the power shaft 22-a.
Power is transmitted from the sprockets to the sprockets 26 and 27 EndPage: 2 on the drive
wheel support shaft by the chains 24 and 25 so that the drive wheel is fully rotated. As described
above, in any of the embodiments (... But in the case of two drive wheels (... Described above, it is
also possible to use three or four). In addition, in order to prevent all occurrences of wrinkles and
squeezing on the film surface due to differences in local movement between the drive wheel and
the film material, the timing belt can be placed on the film surface that does not block the
effective field of view of ultrasonic waves. The above-mentioned drawbacks can be overcome by
fixing the mechanical non-slip structure by means such as bonding of all members, and forming a
tooth profile on the drive shaft circumference (·, a chain between drive wheels, etc.
Synchronization mechanism by? You can save money. The conventional wheel-like probe drive
device is completely mounted on the rubber film only on both sides, and waterproofed
completely by the all-zero ring etc. between the side-drawing and the rotating shaft, so the
rotation is not smooth and the signal cable is taken out etc. In the present invention, a plurality of
drive wheels Pm (・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・
・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・The range has been greatly improved, twodimensional inspection has become possible, inspection time has been shortened, and further, it
can be used in a wide range from manual (manual) to automatic traveling. is there.
4. Brief description of the drawings Fig. 1 is a front view of the first embodiment of the ultrasonic
probe according to the present invention, Fig. 2 is a side view of the first embodiment, and Fig. 6
is an upper surface of the first embodiment. FIG. 4 is a front view of the second embodiment, and
FIG. 5 is a top view of the second embodiment. In the figure, 1.2 is a driving wheel 6, the pillow 8
is an ultrasonic wave oscillator 27, and water. Applicants Canon Horosonics Co., Ltd. Agent
Marushima Gino-Kojimachi-EndPage: 3
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