JP2009109339A - Vibration measuring device and vibration measurement method - Google Patents

Vibration measuring device and vibration measurement method Download PDF

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JP2009109339A
JP2009109339A JP2007281792A JP2007281792A JP2009109339A JP 2009109339 A JP2009109339 A JP 2009109339A JP 2007281792 A JP2007281792 A JP 2007281792A JP 2007281792 A JP2007281792 A JP 2007281792A JP 2009109339 A JP2009109339 A JP 2009109339A
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pressing
vibration
angle
pressing force
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Kazuo Oda
和夫 小田
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Nuclear Fuel Industries Ltd
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Nuclear Fuel Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration measuring device having a portable vibration detection section that does not require experience, is not affected by the height and directivity of a measurement part, has improved reproducibility, and is capable of stably measuring vibration. <P>SOLUTION: The vibration measuring device has a portable vibration detection section, having a press tool and measures the vibration of a body to be measured by pressing the press tool to the measurement surface of the body to be measured. The vibration measuring device comprises the vibration detection section, having a pressing force detection section for detecting the press force of the press tool, applied to the measurement surface and a press angle detection section for detecting the pressing angle of the press tool to the measurement surface; and a detection result confirming means for confirming the detection results of the pressing force and pressing angle of the pressing tool. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ポンプ、送風機、タービン等回転運動を伴う設備において、回転体の回転運動により発生する設備の振動を測定して回転体の異常の有無をチェックすることができる振動測定装置および振動測定方法に関する。   The present invention relates to a vibration measuring device and a vibration measurement capable of checking the presence or absence of an abnormality in a rotating body by measuring the vibration of the equipment caused by the rotating movement of the rotating body in a facility such as a pump, a blower, and a turbine. Regarding the method.

この種の振動測定装置としては、振動検知部の押圧子を対象物に押し付けて測定する振動測定装置を挙げることができ（特許文献１）、さらに振動検知部が固定された振動検知部固定型の振動測定装置と、振動検知部が持ち運び自在な振動検知部携帯型の振動測定装置の２つのタイプに大別される。振動検知部固定型の振動測定装置は、図５および図６のように押圧子５０を有する振動検知部５１と、振動検知部５１から出力される検知信号を処理する処理部５２と、振動表示部５３と、各部をつなぐ配線部５４を備えており、回転体Ａ１を有する被測定体（設備）Ａの測定部位Ａ２には、振動検知部５１が固定治具５５により固定されており、常時連続で振動測定ができること、測定者が危険で近寄れない場所でも振動測定ができること、また再現性が高く安定した振動測定をすることができる等の利点があるが、振動検知部と測定監視部を接続する配線や振動検知部を固定する振動検知部固定用治具を必要とすることおよび測定部位の変更に柔軟性がないという欠点がある。   As this type of vibration measuring device, there can be mentioned a vibration measuring device that measures by pressing a pressing element of a vibration detecting unit against an object (Patent Document 1), and a vibration detecting unit fixed type in which the vibration detecting unit is fixed. The vibration measurement device and the vibration detection unit that can be carried by the vibration detection unit are roughly classified into two types. As shown in FIG. 5 and FIG. 6, the vibration detector fixed-type vibration measuring device includes a vibration detector 51 having a presser 50, a processing unit 52 that processes a detection signal output from the vibration detector 51, and a vibration display. The vibration detection unit 51 is fixed to the measurement site A2 of the measured object (equipment) A having the rotating body A1 by the fixing jig 55. There are advantages such as being able to continuously measure vibration, being able to measure vibration even in the place where the measurer is dangerous and not approaching, and being able to perform stable vibration measurement with high reproducibility. There are disadvantages that a wiring for connection and a vibration detection unit fixing jig for fixing the vibration detection unit are required, and that the measurement site is not flexible.

一方、振動検知部携帯型の振動測定装置は、図７のように押圧子７０を有する振動検知部７１を固定することなく測定者が手に持って自由に移動させることができるようになっており、測定者が安全に接近できる部位であれば、どこでも振動測定を行うことができるという利点がある。なお、図中の符号７２は処理部、７３は振動表示部、７４は配線部である。   On the other hand, the vibration detecting unit portable vibration measuring apparatus can be freely moved by the measurer in his / her hand without fixing the vibration detecting unit 71 having the presser 70 as shown in FIG. In addition, there is an advantage that vibration measurement can be performed anywhere as long as the measurer can safely approach. In the figure, reference numeral 72 is a processing unit, 73 is a vibration display unit, and 74 is a wiring unit.

振動検知部携帯型の振動測定装置には、次の点で振動測定の再現性が低く、安定した振動測定が難しいという欠点があった。
再現性が良く、安定して振動測定するためには、図８（ａ）のように、測定する際の測定部位Ａ２の測定面Ａ３に対する振動検知部７１の押圧子７０の適正な押し付け力Ｐは、１０Ｎから３０Ｎの間に絶えず安定させておくことが必要であり、その中でも２０Ｎであるとより好ましい。また、押圧子７０は測定面Ａ３に対して所定の範囲内の適正な角度（傾き）で押し付ける必要があり、具体的には、図８（ｂ）のように押し付け角度θを１０度以内に抑える必要がある。そして、かかる振動測定条件を満たすことにより、再現性が良く安定した振動測定を行うことができる。 The vibration detector of the vibration detection unit has the disadvantage that the vibration measurement reproducibility is low and stable vibration measurement is difficult in the following points.
In order to perform vibration measurement with good reproducibility and stability, as shown in FIG. 8A, an appropriate pressing force P of the pressing element 70 of the vibration detector 71 against the measurement surface A3 of the measurement site A2 at the time of measurement is measured. Needs to be constantly stabilized between 10N and 30N, and 20N is more preferable among them. Further, the pressing member 70 needs to be pressed against the measurement surface A3 at an appropriate angle (inclination) within a predetermined range. Specifically, as shown in FIG. 8B, the pressing angle θ is within 10 degrees. It is necessary to suppress. By satisfying such vibration measurement conditions, it is possible to perform vibration measurement with good reproducibility and stability.

しかし、従来の振動検知部携帯型の振動測定装置による測定においては、測定者の熟練度や適性等により、振動検知部の測定部位への押し付け方が異なり、同じ部位を振動測定しても再現性が低く安定した振動測定ができない。また、熟練した測定者であっても、測定部位の高さや方向性により、一定した取扱いは困難であるため、再現性が低く、安定した振動測定が困難であるという問題があった。   However, in the measurement by the conventional vibration measurement device of the vibration detection unit, the method of pressing the vibration detection unit to the measurement site differs depending on the skill level and suitability of the measurer, and it is reproduced even if the vibration is measured on the same site Stable vibration measurement is not possible. In addition, even a skilled measurer has a problem that it is difficult to perform stable vibration measurement because it is difficult to perform constant handling because of the height and directionality of the measurement site.

特開平５−１２６６２７号公報JP-A-5-126627

そこで本発明においては、熟練を必要とすることなく、また測定部位の高さや方向性に左右されることなく、再現性が良く、安定した振動測定を可能とすることができる振動検知部携帯型の振動測定装置を提供することを課題とする。   Therefore, in the present invention, the vibration detection unit portable type that can perform stable vibration measurement with good reproducibility without requiring skill and without being affected by the height and directionality of the measurement site. It is an object of the present invention to provide a vibration measuring apparatus.

上記課題は、振動検知部に、測定面に加わる押圧子の押し付け力を検知する押し付け力検知部と、測定面に対する押圧子の押し付け角度を検知する押し付け角度検知部とを設け、適正な押し付け力と押し付け角度とを確認しつつ振動測定することにより解決することができる。   The above problem is that the vibration detection unit is provided with a pressing force detection unit for detecting the pressing force of the pressing member applied to the measurement surface and a pressing angle detection unit for detecting the pressing angle of the pressing member with respect to the measurement surface. It is possible to solve this problem by measuring vibration while checking the pressing angle.

すなわち、本発明は、その請求項１において、
押圧子を有する携帯型の振動検知部を備え、前記押圧子を被測定体の測定面に押し付けて前記被測定体の振動を測定する振動測定装置であって、
前記測定面に加わる前記押圧子の押し付け力を検知する押し付け力検知部と、前記測定面に対する前記押圧子の押し付け角度を検知する押し付け角度検知部とが設けられた前記振動検知部と、
前記押圧子の押し付け力および押し付け角度の検知結果を確認する検知結果確認手段と
を有することを特徴とする振動測定装置を提供する。 That is, the present invention relates to claim 1,
A vibration measurement device comprising a portable vibration detector having a presser, and measuring the vibration of the measured object by pressing the presser against a measurement surface of the measured object,
The vibration detection unit provided with a pressing force detection unit that detects a pressing force of the pressing member applied to the measurement surface, and a pressing angle detection unit that detects a pressing angle of the pressing member with respect to the measurement surface,
There is provided a vibration measuring apparatus comprising detection result confirmation means for confirming a detection result of a pressing force and a pressing angle of the pressing element.

請求項１に係る振動測定装置における携帯型の振動検知部には、押し付け力検知部と押し付け角度検知部が設けられ、さらに振動測定装置は、前記押圧子の押し付け力および押し付け角度の検知結果を確認する検知結果確認手段を有しているため、測定者は測定面に対する押圧子の押し付け力および押し付け角度を知ることができる。このため、前記の振動測定装置を用いることにより、押圧子の押し付け力および押し付け角度の検知結果に基づいて、押し付け力および押し付け角度を適正な範囲内に納まるように適宜調整しながら振動測定を行うことができ、熟練を必要とすることなく、また測定部位の高さや方向性に左右されることなく、再現性が良く、安定した振動測定を行うことが可能になる。
なお、ここでいう「携帯型」とは、自在に持ち運びができることを指す。 The portable vibration detector in the vibration measuring device according to claim 1 is provided with a pressing force detector and a pressing angle detector, and the vibration measuring device further detects the pressing force and pressing angle detection results of the pressing element. Since it has the detection result confirmation means to confirm, the measurer can know the pressing force and pressing angle of the pressing element against the measurement surface. For this reason, by using the above-described vibration measuring device, vibration measurement is performed while appropriately adjusting the pressing force and the pressing angle within an appropriate range based on the detection result of the pressing force and the pressing angle of the presser. Therefore, it is possible to perform stable vibration measurement with good reproducibility without requiring skill and without depending on the height and directionality of the measurement site.
Note that the “portable type” here means that it can be carried freely.

請求項２に記載の発明は、
前記押し付け角度検知部は、前記測定面との距離を計測する距離計測部を複数個有し、前記複数個の距離計測部の各々で計測された距離の差に基づいて、前記押し付け角度を検知する検知部であることを特徴とする請求項１に記載の振動測定装置である。 The invention described in claim 2
The pressing angle detection unit includes a plurality of distance measuring units that measure a distance from the measurement surface, and detects the pressing angle based on a difference in distance measured by each of the plurality of distance measuring units. The vibration measuring device according to claim 1, wherein the vibration measuring device is a detecting unit that performs detection.

このように構成することにより、簡単な構成で押圧子の押し付け角度（傾き）を確認することができるため、再現性が良く、安定した振動測定を行うことが可能になる。   With this configuration, the pressing angle (inclination) of the presser can be confirmed with a simple configuration, so that it is possible to perform stable vibration measurement with good reproducibility.

請求項３に記載の発明は、
前記検知結果確認手段は、前記押し付け力検知部および前記押し付け角度検知部の検知信号により得られた押し付け力および押し付け角度を表示する押し付け力表示部および押し付け角度表示部により構成されていることを特徴とする請求項１または請求項２に記載の振動測定装置である。 The invention according to claim 3
The detection result confirming means includes a pressing force display unit and a pressing angle display unit that display a pressing force and a pressing angle obtained from detection signals of the pressing force detection unit and the pressing angle detection unit. The vibration measuring device according to claim 1 or 2.

検知結果確認手段が、押し付け力表示部と押し付け角度表示部により構成されているため、測定者は押圧子の押し付け力と押し付け角度を目視により、リアルタイムに確認することができ、迅速に押し付け力および押し付け角度を調整することが可能になる。   Since the detection result confirmation means is composed of a pressing force display unit and a pressing angle display unit, the measurer can visually check the pressing force and pressing angle of the presser in real time, and can quickly determine the pressing force and the pressing force. The pressing angle can be adjusted.

請求項４に記載の発明は、
前記検知結果確認手段は、前記押圧子の押し付け力と予め定められた基準となる適正な押し付け力とを比較して適正な押し付け力であるか否かを報知する報知部と、前記押圧子の押し付け角度と予め定められた基準となる適正な押し付け角度とを比較して適正な押し付け角度であるか否かを報知する報知部のうち、少なくとも一方の報知部を備えていることを特徴とする請求項１ないし請求項３のいずれか１項に記載の振動測定装置である。
なお、報知部は、具体的にはたとえば各計測の判定結果をブザー音、表示灯或いはこれらを組み合わせて報知する。 The invention according to claim 4
The detection result confirming means compares the pressing force of the pressing element with an appropriate pressing force that is a predetermined reference and notifies whether or not the pressing force is an appropriate pressing force; and Comparing the pressing angle with an appropriate pressing angle that is a predetermined reference, it is provided with at least one notifying unit among the notifying units that notify whether or not the pressing angle is appropriate. It is a vibration measuring apparatus of any one of Claim 1 thru | or 3.
Note that the notification unit specifically notifies, for example, the determination result of each measurement by using a buzzer sound, an indicator lamp, or a combination thereof.

このように構成することにより、押圧子を測定面に押し付けて測定部位に振動検知部をセットする際に、測定者は、押圧子の押し付け力および押し付け角度が適正であるか否かを的確に認識することができるため、不適正な振動測定を防止することができる。また、表示灯等の表示により報知する場合には、振動測定が適正か不適正かを容易に知ることができ、ブザー音等の音声により報知する場合には押し付け力表示部や押し付け角度表示部の表示が見え難い測定状況の下であっても、不適正な振動測定を容易に防止することができる。   With this configuration, when the pressing member is pressed against the measurement surface and the vibration detection unit is set on the measurement site, the measurer accurately determines whether the pressing force and the pressing angle of the pressing member are appropriate. Since it can be recognized, improper vibration measurement can be prevented. In addition, when notifying by display such as an indicator lamp, it is possible to easily know whether the vibration measurement is appropriate or inappropriate, and when notifying by sound such as a buzzer sound, a pressing force display unit and a pressing angle display unit Even under measurement conditions where it is difficult to see the display, improper vibration measurement can be easily prevented.

請求項５に記載の発明は、
請求項１ないし請求項４のいずれか１項に記載の振動測定装置を用い、前記押し付け力検知部および前記押し付け角度検知部で検知された押し付け力および押し付け角度に基づいて、適正な押し付け力および押し付け角度となるように前記押圧子を操作し、かつその状態を保持して、振動測定を行うことを特徴とする振動測定方法である。 The invention described in claim 5
Using the vibration measuring device according to any one of claims 1 to 4, an appropriate pressing force based on the pressing force and the pressing angle detected by the pressing force detection unit and the pressing angle detection unit, and The vibration measuring method is characterized in that the vibration is measured while the pressing element is operated so as to have a pressing angle and the state is maintained.

本請求項の発明においては、請求項１ないし請求項４のいずれか１項に記載の振動測定装置を用いているため、従来の振動検知部携帯型の振動測定装置を用いた振動測定と異なり、押圧子を適正な押し付け力および押し付け角度で測定面に押し付け、さらに、その適正な状態を保持して振動測定を行うため、再現性が良く、安定した振動測定を行うことができる。   In the invention of this claim, since the vibration measuring device according to any one of claims 1 to 4 is used, it is different from vibration measurement using a conventional vibration measuring device with a portable vibration detector. Since the pressing element is pressed against the measurement surface with an appropriate pressing force and pressing angle, and the vibration is measured while maintaining the appropriate state, the vibration can be measured with good reproducibility.

本発明によれば、熟練を必要とすることなく、また測定部位の高さや方向性に左右されることなく、再現性が良く、安定した振動測定を可能とすることができる振動検知部携帯型の振動測定装置を提供することができる。   According to the present invention, a portable vibration detection unit that can perform stable vibration measurement with good reproducibility without requiring skill and without being affected by the height and directionality of the measurement site. The vibration measuring device can be provided.

以下、本発明をその最良の実施の形態につき、具体的に説明する。なお、本発明は、以下の実施の形態に限定されるものではない。本発明と同一および均等の範囲内において、以下の実施の形態に対して種々の変更を加えることが可能である。   Hereinafter, the present invention will be specifically described with respect to the best mode thereof. Note that the present invention is not limited to the following embodiments. Various modifications can be made to the following embodiments within the same and equivalent scope as the present invention.

（第１の実施の形態）
図１は、本実施の形態に係る振動検知部携帯型の振動測定装置の概略的な説明図である。また、図２は、本実施の形態に係る振動検知部携帯型の振動測定装置の振動検知部１の概略的な説明図である。 (First embodiment)
FIG. 1 is a schematic explanatory diagram of a vibration detection unit portable vibration measuring apparatus according to the present embodiment. FIG. 2 is a schematic explanatory diagram of the vibration detection unit 1 of the vibration detection unit portable vibration measuring apparatus according to the present embodiment.

図１に示される携帯型の振動検知部を有する振動測定装置は、押圧子１ａを有する振動検知部１を備え、この振動検知部１には押圧子１ａの押し付け力を検知する押し付け力検知部２と押圧子１ａの押し付け角度を検知する押し付け角度検知部３とが設けられている。   The vibration measuring apparatus having a portable vibration detection unit shown in FIG. 1 includes a vibration detection unit 1 having a presser 1a. The vibration detection unit 1 detects a pressing force of the presser 1a. 2 and a pressing angle detector 3 that detects the pressing angle of the pressing element 1a.

また、振動測定装置には、振動検知部１、押し付け力検知部２および押し付け角度検知部３から出力される検知信号を処理する処理部４と、検知された振動を表示する振動表示部６ａ、押圧子１ａの押し付け力を表示する押し付け力表示部６ｂおよび押し付け角度を表示する押し付け角度表示部６ｃとが設けられている。   The vibration measuring device includes a processing unit 4 that processes detection signals output from the vibration detection unit 1, the pressing force detection unit 2, and the pressing angle detection unit 3, and a vibration display unit 6a that displays the detected vibration. A pressing force display section 6b that displays the pressing force of the pressing element 1a and a pressing angle display section 6c that displays the pressing angle are provided.

さらに、押圧子１ａの押し付け力および押し付け角度が適正か否か、即ち、振動測定条件の範囲にあるか否かを音や表示灯、あるいはその両方の組合せで測定者に報知する報知部（図示せず）と、各部をつなぐ配線部７が備わっている。
これらの構成要素はハウジング（図示せず）に収容されている。 Further, an informing unit that informs the measurer of whether or not the pressing force and the pressing angle of the presser 1a are appropriate, that is, whether or not they are within the range of the vibration measurement condition, by using a sound, an indicator lamp, or a combination of both (see FIG. (Not shown) and a wiring part 7 for connecting each part.
These components are accommodated in a housing (not shown).

なお、振動表示部６ａ、押し付け力表示部６ｂ、押し付け角度表示部６ｃおよび報知部は一式固定式でもよいが、任意の測定場所において、測定者にリアルタイムで表示し、報知するためには、これらも携帯式であることが好ましい。   The vibration display unit 6a, the pressing force display unit 6b, the pressing angle display unit 6c, and the notification unit may be set in a fixed manner, but in order to display and notify the measurer in real time at any measurement location, Is also preferably portable.

振動検知部１は、押圧子１ａを、被測定体Ａの測定面Ａ３に、適正な力および角度で押し付けることにより、被測定体Ａの振動を検知するものであり、検知された振動は振動表示部６ａに表示される。   The vibration detection unit 1 detects the vibration of the measurement target A by pressing the pressing element 1a against the measurement surface A3 of the measurement target A with an appropriate force and angle. The detected vibration is vibration. It is displayed on the display unit 6a.

図１に示すように、押圧子１ａには、筒状の握り部１ｂが押圧子１ａの軸方向に沿って移動可能に嵌め込まれており、押圧子１ａの後端側には、抜け止め体１ｃが固定されている。また、押圧子１ａの前端側には、後述のロードセル２ａ、２ｂの取付け体１ｄおよび後述の距離計測部３ａ、３ｂの取付け体１ｅが固定されている。取付け体１ｄと握り部１ｂとの間には付勢ばね（圧縮ばね）１ｆを介在して押圧子１ａを前方に向けて付勢している。   As shown in FIG. 1, a cylindrical grip 1b is fitted into the presser 1a so as to be movable along the axial direction of the presser 1a. 1c is fixed. A mounting body 1d for load cells 2a and 2b, which will be described later, and a mounting body 1e for distance measuring sections 3a and 3b, which will be described later, are fixed to the front end side of the presser 1a. An urging spring (compression spring) 1f is interposed between the attachment body 1d and the grip portion 1b to urge the pressing element 1a forward.

押し付け力検知部２は圧力センサで構成されている。圧力センサは、歪みゲージ式であり、一般にはロードセル２ａ、２ｂである。このロードセル２ａ、２ｂは押圧子１ａに固定された取付け体１ｄに設けられており、押圧子１ａを測定面Ａ３に押し付けるときには、握り部１ｂが付勢ばね１ｆのばね力に抗して摺動してロードセル２ａ、２ｂと圧接することにより押圧子１ａの押し付け力を検知する。   The pressing force detection unit 2 is composed of a pressure sensor. The pressure sensor is a strain gauge type, and is generally the load cells 2a and 2b. The load cells 2a and 2b are provided on an attachment body 1d fixed to the pressing element 1a. When the pressing element 1a is pressed against the measurement surface A3, the grip portion 1b slides against the spring force of the biasing spring 1f. Then, the pressing force of the pressing element 1a is detected by pressing the load cells 2a and 2b.

次に、図３に基づいて押し付け角度検知の仕組みを説明する。図３は、本実施の形態に係る振動検知部携帯型の振動測定装置の振動検知部の概略的な動作説明図であり、押し付け角度検知の仕組みを模式的に示す図である。なお、図および説明が繁雑になるのをさけるため、図３および以下の説明は、図の左右方向の押し付け角度検知の仕組みについて記載するが、図の前後方向の押し付け角度検知の仕組みは、以下に記載する左右方向の押し付け角度の仕組みと同じである。   Next, a mechanism for detecting the pressing angle will be described with reference to FIG. FIG. 3 is a schematic operation explanatory diagram of the vibration detection unit of the vibration detection unit portable vibration measuring apparatus according to the present embodiment, and is a diagram schematically showing the mechanism of pressing angle detection. In order to avoid complicated illustrations and explanations, FIG. 3 and the following explanation describe a mechanism for detecting the pressing angle in the horizontal direction in the figure, but a mechanism for detecting the pressing angle in the front-rear direction in the figure is as follows. This is the same as the mechanism of the pressing angle in the left-right direction described in.

押し付け角度検知部３は、一対の光反射式の距離計測部３ａ、３ｂを有しており、距離計測部３ａ、３ｂは、それぞれ、押圧子１ａの両側に配置されて取付け体１ｅにより固定されている。各距離計測部３ａ、３ｂは、発光部（図示せず）と受光部（図示せず）とを備えており、発光部から出た光が被測定体Ａの測定面Ａ３で反射し、その反射光が受光部で受光されることにより、各距離計測部３ａ、３ｂと測定面Ａ３との間の距離が検知される。図３に示すように、一方の距離計測部３ａで検知された距離Ｄ１と、他方の距離計測部３ｂで検知された距離Ｄ２の検知信号は、それぞれ、処理部４で処理されて押し付け角度表示部６ｃに出力される。検知された２つの距離Ｄ１およびＤ２の差が、所定の許容範囲内にあるときは、適正な押し付け角度で押し付けられていると判断して、振動測定を行う。このように、距離の差によって測定面Ａ３に対する押圧子１ａの押し付け角度を検知することができ、押圧子１ａの押し付け角度が前記の振動測定条件の範囲から外れているか否かの判別が可能になる。   The pressing angle detection unit 3 includes a pair of light reflection type distance measuring units 3a and 3b. The distance measuring units 3a and 3b are arranged on both sides of the presser 1a and fixed by an attachment body 1e. ing. Each distance measuring unit 3a, 3b includes a light emitting unit (not shown) and a light receiving unit (not shown), and the light emitted from the light emitting unit is reflected by the measurement surface A3 of the measured object A, When the reflected light is received by the light receiving unit, the distances between the distance measuring units 3a and 3b and the measurement surface A3 are detected. As shown in FIG. 3, the detection signal of the distance D1 detected by one distance measuring unit 3a and the distance D2 detected by the other distance measuring unit 3b is processed by the processing unit 4 to display the pressing angle. Is output to the unit 6c. When the difference between the detected two distances D1 and D2 is within a predetermined allowable range, it is determined that the pressure is pressed at an appropriate pressing angle, and vibration measurement is performed. Thus, the pressing angle of the pressing element 1a against the measurement surface A3 can be detected based on the difference in distance, and it is possible to determine whether or not the pressing angle of the pressing element 1a is out of the range of the vibration measurement conditions. Become.

このようにして構成される振動測定装置では、測定者が振動測定装置を手に持ち、押圧子１ａを測定面Ａ３に上記所定の押し付け力で押し付ける。このとき握り部１ｂは付勢ばね１ｆのばね力に抗して押圧子１ａの軸方向に摺動してロードセル２ａ、２ｂに押し付けられ、その押し付け力をロードセル２ａ、２ｂが検知して検知信号を処理部４に出力し、処理部４からの信号で押し付け力の検出値が押し付け力表示部６ｂに表示され、測定者はこの表示に従って押圧子１ａの押し付け力を調整する。また、押圧子１ａを上記の所定に力で押し付けた状態で、一対の距離計測部３ａ、３ｂの検知信号を処理部４に出力し、処理部４からの信号で押し付け角度の値が押し付け角度表示部６ｃに表示され、測定者はこの表示に従って押圧子１ａの押し付け角度を調整する。測定者は、押し付け力表示部６ｂおよび押し付け角度表示部６ｃのみならず報知部によっても前記の振動測定条件の範囲内か否かを認識できる。   In the vibration measuring apparatus configured as described above, the measurer holds the vibration measuring apparatus in his hand and presses the pressing element 1a against the measurement surface A3 with the predetermined pressing force. At this time, the grip portion 1b slides in the axial direction of the pressing element 1a against the spring force of the urging spring 1f and is pressed against the load cells 2a and 2b. The load cells 2a and 2b detect the pressing force and detect signals. Is output to the processing unit 4, and the detection value of the pressing force is displayed on the pressing force display unit 6 b by a signal from the processing unit 4, and the measurer adjusts the pressing force of the presser 1 a according to this display. In addition, in a state where the pressing element 1a is pressed with the predetermined force, the detection signals of the pair of distance measuring units 3a and 3b are output to the processing unit 4, and the value of the pressing angle is determined by the signal from the processing unit 4 as the pressing angle. Displayed on the display unit 6c, the measurer adjusts the pressing angle of the presser 1a according to this display. The measurer can recognize whether the vibration measurement condition is within the range not only by the pressing force display unit 6b and the pressing angle display unit 6c but also by the notification unit.

（第２の実施形態）
図４は、別の実施の形態に係る振動検知部携帯型の振動測定装置の概略的な説明図であり、押圧子１ａを有する振動検知部１を自動ハンドリング装置５に取り付けて振動測定を行うようになっている。なお、ここでいう自動ハンドリング装置は、工具等を掴むマニュピレータが組み込まれ、また移動機能を持ち合わせている産業用ロボットである。振動検知部１には押し付け力検知部２と押し付け角度検知部３が取り付けられ、処理部４と振動表示部６ａと押し付け力表示部６ｂと押し付け角度表示部６ｃと報知部（図示せず）はハンドリング装置５に付設されている。 (Second Embodiment)
FIG. 4 is a schematic explanatory view of a vibration detection unit portable vibration measurement device according to another embodiment, and the vibration detection unit 1 having the presser 1a is attached to the automatic handling device 5 to perform vibration measurement. It is like that. The automatic handling device here is an industrial robot that incorporates a manipulator for grasping a tool or the like and has a moving function. The vibration detection unit 1 is provided with a pressing force detection unit 2 and a pressing angle detection unit 3, and the processing unit 4, the vibration display unit 6a, the pressing force display unit 6b, the pressing angle display unit 6c, and a notification unit (not shown) are provided. It is attached to the handling device 5.

自動ハンドリング装置５は、測定者の操作によって押圧子１ａを被測定体Ａの測定面Ａ３に押し付けるものであり、第１から第３までのアーム５ａ、５ｂ、５ｃと、第１から第３までの回動機５ｄ、５ｅ、５ｆと、制御部および操作ハンドル等から成る操作部（図示せず）を備えている。   The automatic handling device 5 presses the presser 1a against the measurement surface A3 of the measurement object A by the operator's operation, and includes first to third arms 5a, 5b, and 5c, and first to third. Rotating units 5d, 5e, and 5f, and an operation unit (not shown) including a control unit and an operation handle.

第１回動機５ｄは支持台５ｇに設けられ、第１回動機５ｄには第１アームの後端が取り付けられ、第１アーム５ａの前端には第２回動機５ｅが取り付けられている。第２回動機５ｅには第２アーム５ｂの後端が取り付けられ、第２アーム５ｂの前端には第３回動機５ｆが取り付けられている。第３回動機５ｆには第３アーム５ｃが取り付けられ、第３アーム５ｃの前端には図１に示した振動検知部１の握り部１ｂが固定されている。   The first rotating machine 5d is provided on the support 5g. The first rotating machine 5d is attached with the rear end of the first arm, and the first arm 5a is attached with the second rotating machine 5e. A rear end of the second arm 5b is attached to the second rotating machine 5e, and a third rotating machine 5f is attached to the front end of the second arm 5b. A third arm 5c is attached to the third rotating machine 5f, and a grip 1b of the vibration detector 1 shown in FIG. 1 is fixed to the front end of the third arm 5c.

第１から第３までのアーム５ａ、５ｂ、５ｃは、同一平面（図示の例では同一の鉛直面内）内で回動して押圧子１ａの移動や被測定体Ａの回転体Ａ１の測定部位Ａ２にある測定面Ａ３に押圧子１ａを押し付け、押圧子１ａの押し付け力および押し付け角度の調整を行い、前記の振動測定条件の範囲内で押圧子１ａを測定面Ａ３に押し付けた状態で振動検知部１の位置決めを行う。
押し付け角度検知部３の一対の距離計測部３ａ、３ｂも前記の同一平面内に配置され、押圧子１ａの回動により一方の距離計測部３ａ（３ｂ）の検知距離が長くなると、他方の距離計測部３ｂ（３ａ）の検知距離が短くなって、検知距離の差の調整が可能となっている。なお、支持台５ｇにはキャスター５ｈが設けられている。 The first to third arms 5a, 5b, 5c rotate in the same plane (in the same vertical plane in the illustrated example) to move the presser 1a and measure the rotating body A1 of the measured object A. The pressing element 1a is pressed against the measuring surface A3 in the part A2, the pressing force and the pressing angle of the pressing element 1a are adjusted, and the pressing element 1a is vibrated while being pressed against the measuring surface A3 within the range of the vibration measurement conditions described above. The detection unit 1 is positioned.
The pair of distance measuring units 3a and 3b of the pressing angle detecting unit 3 are also arranged in the same plane. When the detection distance of one distance measuring unit 3a (3b) is increased by the rotation of the presser 1a, the other distance is measured. The detection distance of the measurement unit 3b (3a) is shortened, and the difference in the detection distance can be adjusted. The support 5g is provided with casters 5h.

このようにして構成される本実施形態の振動検知部携帯型の振動測定装置は、まず押圧子１ａを測定面Ａ３に押し付け、測定者は押し付け力表示部６ｂと押し付け角度表示部６ｃの表示に従って押圧子１ａの押し付け力および押し付け角度が前記の振動測定条件の範囲内になるように自動ハンドリング装置５を操作し、振動測定を行う。   The vibration detection unit portable vibration measuring apparatus of the present embodiment configured as described above first presses the pressing member 1a against the measurement surface A3, and the measurer follows the display of the pressing force display unit 6b and the pressing angle display unit 6c. The automatic handling device 5 is operated so that the pressing force and the pressing angle of the presser 1a are within the range of the vibration measurement conditions, and vibration measurement is performed.

なお、押し付け力および押し付け角度が所定の範囲内の値でない場合には、検知信号に基づいて処理部４からハンドリング装置５の駆動回路に補正信号を出力して押し付け力および角度を自動的に補正するようにしても良い。また、前記の振動測定条件の範囲内になった場合にのみ振動測定が可能になるようにしても良い。   When the pressing force and the pressing angle are not within the predetermined range, a correction signal is output from the processing unit 4 to the driving circuit of the handling device 5 based on the detection signal to automatically correct the pressing force and the angle. You may make it do. Further, vibration measurement may be possible only when the vibration measurement condition is satisfied.

第１の実施の形態に係る振動検知部携帯型の振動測定装置の概略的な説明図である。It is a schematic explanatory drawing of the vibration detection part portable vibration measuring apparatus which concerns on 1st Embodiment. 第１の実施の形態に係る振動検知部携帯型の振動測定装置の振動検知部の概略的な動作説明図である。It is a rough operation explanatory view of a vibration detection part of a vibration detection part portable vibration measuring device concerning a 1st embodiment. 第１の実施の形態に係る振動検知部携帯型の振動測定装置の振動検知部の概略的な動作説明図である。It is a rough operation explanatory view of a vibration detection part of a vibration detection part portable vibration measuring device concerning a 1st embodiment. 第２の実施の形態に係る振動検知部携帯型の振動測定装置の概略的な説明図である。It is a schematic explanatory drawing of the vibration detection part portable vibration measuring apparatus which concerns on 2nd Embodiment. 従来の振動検知部固定型の振動測定装置の概略的な説明図である。It is a schematic explanatory drawing of the conventional vibration detection part fixed type vibration measuring apparatus. 従来の振動検知部固定型の振動測定装置の振動検知部の概略的な説明図である。It is a schematic explanatory drawing of the vibration detection part of the conventional vibration detection part fixed type vibration measuring apparatus. 従来の振動検知部携帯型の振動測定装置の概略的な説明図である。It is a schematic explanatory drawing of the conventional vibration detection part portable vibration measuring device. （ａ）は振動検知部の押圧子の押し付け力の説明図、（ｂ）は振動検知部の押圧子の押し付け角度の説明図である。(A) is explanatory drawing of the pressing force of the presser of a vibration detection part, (b) is explanatory drawing of the pressing angle of the presser of a vibration detection part.

符号の説明Explanation of symbols

Ａ 被測定体
Ａ１ 回転体
Ａ２ 測定部位
Ａ３ 測定面
１ 振動検知部
１ａ 押圧子
１ｂ 握り部
１ｃ 抜け止め体
１ｄ、１ｅ 取付け体
１ｆ 付勢ばね
２ 押し付け力検知部
２ａ、２ｂ ロードセル
３ 押し付け角度検知部
３ａ、３ｂ 距離計測部
４ 処理部
５ 自動ハンドリング装置
５ａ、５ｂ、５ｃ 第１から第３までのアーム
５ｄ、５ｅ、５ｆ 第１から第３までの回動機
５ｇ 支持台
５ｈ キャスター
６ａ 振動表示部
６ｂ 押し付け力表示部
６ｃ 押し付け角度表示部
７ 配線部 A Measurement object A1 Rotating body A2 Measurement site A3 Measurement surface 1 Vibration detection part 1a Presser 1b Grip part 1c Retaining body 1d, 1e Attachment body 1f Biasing spring 2 Pressing force detection part 2a, 2b Load cell 3 Pressing angle detection part 3a, 3b Distance measuring unit 4 Processing unit 5 Automatic handling devices 5a, 5b, 5c First to third arms 5d, 5e, 5f First to third rotating machines 5g Support base 5h Caster 6a Vibration display unit 6b Pressing force display section 6c Pressing angle display section 7 Wiring section

Claims (5)

押圧子を有する携帯型の振動検知部を備え、前記押圧子を被測定体の測定面に押し付けて前記被測定体の振動を測定する振動測定装置であって、
前記測定面に加わる前記押圧子の押し付け力を検知する押し付け力検知部と、前記測定面に対する前記押圧子の押し付け角度を検知する押し付け角度検知部とが設けられた前記振動検知部と、
前記押圧子の押し付け力および押し付け角度の検知結果を確認する検知結果確認手段と
を有することを特徴とする振動測定装置。 A vibration measurement device comprising a portable vibration detector having a presser, and measuring the vibration of the measured object by pressing the presser against a measurement surface of the measured object,
The vibration detection unit provided with a pressing force detection unit that detects a pressing force of the pressing member applied to the measurement surface, and a pressing angle detection unit that detects a pressing angle of the pressing member with respect to the measurement surface,
A vibration measurement apparatus comprising: a detection result confirmation unit configured to confirm a detection result of a pressing force and a pressing angle of the pressing element. 前記押し付け角度検知部は、前記測定面との距離を計測する距離計測部を複数個有し、前記複数個の距離計測部の各々で計測された距離の差に基づいて、前記押し付け角度を検知する検知部であることを特徴とする請求項１に記載の振動測定装置。   The pressing angle detection unit includes a plurality of distance measuring units that measure a distance from the measurement surface, and detects the pressing angle based on a difference in distance measured by each of the plurality of distance measuring units. The vibration measuring device according to claim 1, wherein the vibration measuring device is a detecting unit. 前記検知結果確認手段は、前記押し付け力検知部および前記押し付け角度検知部の検知信号により得られた押し付け力および押し付け角度を表示する押し付け力表示部および押し付け角度表示部により構成されていることを特徴とする請求項１または請求項２に記載の振動測定装置。   The detection result confirming means includes a pressing force display unit and a pressing angle display unit that display a pressing force and a pressing angle obtained from detection signals of the pressing force detection unit and the pressing angle detection unit. The vibration measuring device according to claim 1 or 2. 前記検知結果確認手段は、前記押圧子の押し付け力と予め定められた基準となる適正な押し付け力とを比較して適正な押し付け力であるか否かを報知する報知部と、前記押圧子の押し付け角度と予め定められた基準となる適正な押し付け角度とを比較して適正な押し付け角度であるか否かを報知する報知部のうち、少なくとも一方の報知部を備えていることを特徴とする請求項１ないし請求項３のいずれか１項に記載の振動測定装置。   The detection result confirming means compares the pressing force of the pressing element with an appropriate pressing force that is a predetermined reference and notifies whether or not the pressing force is an appropriate pressing force; Comparing the pressing angle with an appropriate pressing angle that is a predetermined reference, it is provided with at least one notifying unit among the notifying units that notify whether the pressing angle is appropriate or not. The vibration measuring device according to any one of claims 1 to 3. 請求項１ないし請求項４のいずれか１項に記載の振動測定装置を用い、前記押し付け力検知部および前記押し付け角度検知部で検知された押し付け力および押し付け角度に基づいて、適正な押し付け力および押し付け角度となるように前記押圧子を操作し、かつその状態を保持して、振動測定を行うことを特徴とする振動測定方法。   Using the vibration measuring device according to any one of claims 1 to 4, an appropriate pressing force based on the pressing force and the pressing angle detected by the pressing force detection unit and the pressing angle detection unit, and A vibration measuring method, wherein the vibration is measured by operating the pressing element so as to obtain a pressing angle and maintaining the state.
JP2007281792A 2007-10-30 2007-10-30 Vibration measuring device and vibration measurement method Pending JP2009109339A (en)

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JP2014178318A (en) * 2013-03-13 2014-09-25 Fluke Corp Portable vibration meter and method for measuring vibration of oscillation mechanism
JP2016003861A (en) * 2014-06-13 2016-01-12 株式会社テイエルブイ Sensor pressing aid
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