JP2003202281A - Hardness remote measuring method and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hardness remote measuring device and its method capable of measuring the hardness by remote control by building a portable hardness meter in a watertight chamber, though the performance transition of an underwater machine cannot be continuously examined in a case when the machine is installed at a place and a position such as underwater where the machine can not be directly operated by an examiner. <P>SOLUTION: The working fluid is supplied to a cylinder for driving the hardness meter accommodated in the watertight chamber outer cylinder with the portable hardness meter in a watertight state, from a remote controller through a tube, whereby a measuring element of the portable hardness meter is pressed to a surface of a measured member 1 to measure the hardness of the measured member 1, and a result of the measurement is collected in the remote controller by a sensor cable. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote hardness measuring device and method capable of remotely measuring the surface hardness of a large structure or the like.

[0002]

2. Description of the Related Art Conventionally, hardness measuring instruments include a stationary type and a portable type. The hardness of a test piece is measured by the stationary type and the hardness of a product is measured by a portable type. In either case, remote operation is not performed, and the inspector measures the value by directly touching and operating the instrument, test piece, or product.

[0003]

Therefore, in the case of a device installed in water, the inspector cannot directly touch the instrument or the surface to be measured, so that continuous performance transition of the underwater device can be inspected. There wasn't. An object of the present invention is to provide a remote hardness measuring device and a method thereof in which a portable hardness meter is incorporated in a watertight chamber so that hardness can be measured remotely.

[0004]

In order to achieve the above object, the invention of a remote hardness measuring method according to a first aspect of the present invention is a hardness which is housed in a watertight chamber outer cylinder together with a portable hardness meter in a watertight state. The hardness of the object to be measured 1 is measured by supplying the working fluid from the remote control device to the meter driving cylinder through the tube to press the probe of the portable hardness meter against the surface of the object to be measured 1. The measurement result is collected in the remote control device by a sensor cable.

Further, the invention of a remote hardness measuring apparatus according to claim 2 includes a portable hardness meter 12, a cylinder 13 for driving the portable hardness meter 12 back and forth, and the portable hardness meter 12 and the cylinder 13. A chamber outer cylinder 11 that is housed in a watertight manner, and an operation pole 3 that is provided in the chamber outer cylinder 11 and that moves the chamber outer cylinder 11.
And a reaction force canceling fluid ejection port 5 provided on the surface of the chamber outer cylinder 11 opposite to the surface pressed against the object to be measured.
And is provided at a position apart from the chamber outer cylinder 11, supplies working fluid to the cylinder and the fluid ejection port 5 via a tube, and collects measurement results of the portable hardness meter 12 via a sensor cable. It is characterized in that it is composed of a remote control device 6.

The invention of a remote hardness measuring apparatus according to claim 3 is characterized in that a cleaning nozzle for ejecting a fluid to remove foreign matter is provided on the surface of the object to be measured. In addition, claim 4
The invention of the remote hardness measuring apparatus according to the above aspect is characterized in that the pressure inside the chamber outer cylinder 12 is made higher than the atmospheric pressure of the surroundings to keep the inside in a watertight state.

Further, in the invention of the remote hardness measuring apparatus according to claim 5, a monitor camera 10 for photographing the surface state of the object to be measured 1 is provided, and the photographing data of this monitor camera is sent to the remote controller 6 by a cable 9. It is characterized by incorporating.

Furthermore, the invention of a remote hardness measuring apparatus according to claim 6 is characterized in that a measurement surface contact attachment having a shape corresponding to the measurement surface of the object to be measured is attached to the chamber outer cylinder.

In the present invention, first, the watertight chamber containing the portable hardness meter is moved to the surface of the object to be measured by operating the operation pole. Next, water or air is jetted from the watertight chamber to remove foreign matter on the measurement surface, and then water pressure is jetted from the outside of the watertight chamber under water, and air is jetted in the air. The chamber is brought into contact with the measurement surface, pressure fluid is supplied to the cylinder, and the portable hardness meter is driven toward the surface to be measured and pressed with a specified load. This operation is all performed remotely by the remote control device, and the measured hardness data is displayed on the remote control device.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a state of use of the device of the present invention in water. In the figure, 1 is an object to be measured, 2 is a watertight chamber in which a hardness meter for measuring the hardness of the object 1 to be measured and a cylinder mechanism for driving the hardness meter are housed in a watertight state. When measuring the hardness of the watertight chamber 2 on the upper part of 2,
The operation pole 3 for moving is fixed. Also,
A cleaning nozzle 4 for cleaning the surface of the DUT 1 is fixed to the side of the watertight chamber 2.

Further, since the watertight chamber 2 needs to press the stylus of the hardness meter against the surface 1 of the object to be measured with an appropriate force at the time of measuring the hardness, in the case of the measurement in water, the pressure water is aerated In the case of the measurement in (1), the reaction force canceling fluid injection port 5 configured to inject compressed air is provided.

A remote control device 6 supplies a working fluid to a cylinder in the watertight chamber 2, a cleaning nozzle 4, and a reaction force canceling fluid injection port 5 via a tube 7 during hardness measurement. , Collect measurement data via the sensor cable 8 and monitor camera 1 via the code 9.
It functions to collect video signals taken at 0.

Next, the detailed structure of the watertight chamber 2 will be described with reference to FIG. As shown in FIG. 2, the watertight chamber 2 has two chambers 11B and 11C which are vertically formed by a partition 11A in a chamber outer cylinder 11 having a watertight structure. The lower chamber 11C accommodates the portable hardness meter 12, and the upper chamber 11B accommodates the connecting pusher 15 for transmitting the movement amount of the rod 14 of the cylinder 13 to the portable hardness meter 12.

Reference numeral 16 is a positioning bearing provided on the partition wall 11A for slidably supporting the portable hardness meter 12, and 17 is a watertight holding element provided in a penetrating portion of the gauge head 12A of the portable hardness meter 12. It is the O-ring. And 18
Is a signal connector for connecting the portable hardness meter 12 to the sensor cable 8.

Reference numeral 19 is a seal connector provided at a portion where the tube 7 and the sensor cable 8 penetrate the chamber outer cylinder 11. Reference numeral 20 denotes an attachment which is detachably provided at the tip of the chamber outer cylinder 11 and has a shape corresponding to the curvature of the surface of the DUT 1.

Reference numeral 20 is a signal connector for connecting the portable hardness meter 12 to the sensor cable 8. The inside of the chamber outer cylinder 11 has a tube 4 for maintaining watertightness.
The compressed air is supplied through.

Next, the operation of measuring the hardness of the object to be measured using the device of the present invention will be described. The device of the present invention can be applied to both underwater measurement and in-air measurement, but the case of underwater measurement will be described.

First, the attachment 20 corresponding to the surface curvature of the DUT 1 is attached to the lower portion of the chamber outer cylinder 11. Further, compressed air is sent into the watertight chamber 2 through the tube 7, and the operation pole 3 is operated to approach the DUT 1 while the chamber outer cylinder 11 is kept watertight.

Since it is necessary to remove foreign matters on the surface 1 of the object to be measured before starting the measurement operation, compressed air is supplied from the remote control device 6 to the cleaning nozzle 4 through the tube 7 and the cleaning nozzle 4 is supplied. Compressed air is jetted onto the surface 1 of the object to be measured to remove foreign matters such as dust. After that, the operation pole 3 is operated to place the watertight chamber 2 on the surface of the DUT 1.

Next, high pressure water is jetted from the remote control device 6 to the reaction force canceling fluid jet port 5 provided in the upper portion of the chamber outer cylinder 11 via the tube 7, and the reaction at the time of jetting the high pressure water is performed. The water-tight chamber 2 itself by the surface 1
Press against. The operation up to this point is performed by the monitor camera 10.
It will be done while monitoring.

When it is confirmed that the watertight chamber 2 is pressed against the surface 1 of the object to be measured, the remote controller 6 is operated to supply water of a specified pressure to the cylinder 13 via the tube 4. Portable hardness tester 1 interlocking with the cylinder rod 14 and the connecting pusher 15 inside the chamber outer cylinder 11.
2 is moved downward as indicated by the solid line arrow, and the measuring element 12A provided at the tip thereof is pressed onto the surface 1 of the object to be measured by a specified amount.

The hardness is measured by this operation, the obtained measurement data is collected in the remote control device 6 through the sensor cable 8, and the remote control device 6 accumulates the measurement data.
Perform analysis or display.

When the measurement is completed, the remote controller 6 reduces the pressure in the cylinder 13 and returns the rod 14 as shown by the broken line arrow to restore the portable hardness meter 12 to its original state. Further, the injection of the reaction force canceling fluid is stopped, and the watertight chamber 2 is moved to the next measuring section by the operation pole 3.

Since the above description is for measurement in water, high-pressure water is used as the reaction force canceling fluid, but in the case of measurement in air, air is used as the reaction force canceling fluid. . The device of the present invention is not limited to the upper surface of the DUT 1,
The same operation can be performed on the side surface.

[0025]

As described above, according to the present invention, the hardness meter and the cylinder mechanism for driving the hardness meter are housed in a watertight chamber in a watertight state so that the hardness can be measured remotely. Compared with the above, the scope of application or product survey is greatly improved, and the viewpoint of equipment assurance such as preventive maintenance during equipment manufacture and operation can be greatly improved.

[Brief description of drawings]

FIG. 1 is a view showing a usage state of a device of the present invention in water.

FIG. 2 is a configuration diagram showing an example of a watertight chamber.

[Explanation of symbols]

1 ... Object to be measured, 2 ... Watertight chamber, 3 ... Operation pole,
4 ... Washing nozzle, 5 ... Reaction force canceling fluid ejection port, 6 ... Remote control device, 7 ... Tube, 8 ... Sensor cable, 9
... Code, 10 ... Monitor camera, 11 ... Chamber outer cylinder, 12 ... Portable hardness meter, 12A ... Measuring element, 13 ... Cylinder, 14 ... Cylinder rod, 15 ... Coupling pusher,
11 ... Chamber outer cylinder, 16 ... Bearing, 17 ... O-ring, 19 ... Seal connector, 19 ... Signal connector, 20 ... Attachment.

Claims (6)

[Claims] 1. The portable type is provided by supplying a working fluid from a remote control device through a tube to a hardness meter driving cylinder housed in a watertight chamber outer cylinder together with a portable hardness meter in a watertight state. A remote hardness measuring method characterized in that a hardness of a hardness meter is pressed against the surface of the object to be measured 1 to measure the hardness of the object to be measured, and the measurement result is collected by the remote control device by a sensor cable. 2. A portable hardness meter, a cylinder for driving the portable hardness meter back and forth, a chamber outer cylinder for accommodating the portable hardness meter and the cylinder in a watertight manner, and a chamber provided in the chamber outer cylinder. An operation pole for moving the outer cylinder, a fluid ejection port for canceling a reaction force provided on the surface of the chamber outer cylinder opposite to the surface pressed against the object to be measured, and a position separated from the chamber outer cylinder And a remote control device that supplies a working fluid to the cylinder and the fluid ejection port via a tube and collects measurement results of the portable hardness meter via a sensor cable. Hardness measuring device. 3. The remote hardness measuring device according to claim 2, further comprising a cleaning nozzle for ejecting a fluid on the surface of the object to be measured to remove foreign matter. 4. The remote hardness measurement according to claim 2, wherein the atmospheric pressure inside the chamber outer cylinder is made higher than the atmospheric pressure around the chamber to keep the inside watertight. apparatus. 5. The remote hardness measuring device according to claim 2, wherein a monitor camera for photographing the surface condition of the object to be measured is provided, and the photographing data of the monitor camera is taken into the remote control device by a cable. 6. The remote hardness measuring device according to claim 2, wherein a measurement surface contact attachment having a shape corresponding to the measurement surface of the object to be measured is attached to the chamber outer cylinder.