JPS6236535A - Tester - Google Patents
TesterInfo
- Publication number
- JPS6236535A JPS6236535A JP17592085A JP17592085A JPS6236535A JP S6236535 A JPS6236535 A JP S6236535A JP 17592085 A JP17592085 A JP 17592085A JP 17592085 A JP17592085 A JP 17592085A JP S6236535 A JPS6236535 A JP S6236535A
- Authority
- JP
- Japan
- Prior art keywords
- electromagnet
- load
- load transmission
- magnetic body
- transmission section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は試験体に荷重を加えて衝撃疲労等の各種試験を
行なう試験装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a testing device for performing various tests such as impact fatigue by applying a load to a specimen.
（従来技術）
従来のこの種試験装置は、圧力発生源、例えば油圧源で
得た高圧力を機械的手段を介して試験機本体の荷重伝達
部に加えるものであった。又、従来、極低温下での同様
の各種試験を行なう試験装置では、試験体を極低温の雰
囲気に置く必要上、試験機本体を液体ヘリウムの充填さ
れたクライオスタット内に設置するとともに該試験機本
体の荷重伝達部を該クライオスタットの外部に導出し、
前記機械的手段を介して圧力発生源に連結し°Ｃいた。(Prior Art) Conventional testing devices of this type apply high pressure obtained from a pressure generation source, for example, a hydraulic power source, to a load transmission section of the testing device body via mechanical means. In addition, conventional test equipment that performs various similar tests at extremely low temperatures requires that the test specimen be placed in an extremely low temperature atmosphere, so the test equipment itself is placed inside a cryostat filled with liquid helium, and the test equipment is placed inside a cryostat filled with liquid helium. Leading out the load transmission part of the main body to the outside of the cryostat,
It was connected to a pressure source via the mechanical means.
（発明が解決しようとする問題点）
従来の試験装置のうち前者のものでは、圧力発生源及び
機械的手段が機構的に大型であるため、装置全体の小型
化に制約を伴なうという問題点があった。又、後者のも
のでは試験機本体の荷重伝達部がクライオスタットの外
部に導出されているため、この荷重伝達部からの熱侵入
が非常に太きく、液体ヘリウムの使用量が膨大になると
いう問題点があった。(Problems to be Solved by the Invention) Among the conventional test devices, the former has a problem in that the pressure generation source and mechanical means are mechanically large, which imposes restrictions on miniaturization of the entire device. There was a point. In addition, in the latter case, the load transfer part of the testing machine body is led out to the outside of the cryostat, so there is a problem that the heat intrusion from this load transfer part is very large, and the amount of liquid helium used is enormous. was there.
〈発明の目的）
第１の本発明の目的は、試験体に荷重を加えて衝撃疲労
等の各種試験を行なう試験装置の小型化を図ることにあ
る。また第２の本発明の目的は、極低温下で試験体に荷
重を加えて衝撃疲労等の各種試験を行なう試験装置にお
ける熱侵入を防止し、液体ヘリウムの使用量を減少する
ことにある。(Objective of the Invention) A first object of the present invention is to miniaturize a testing apparatus that performs various tests such as impact fatigue by applying a load to a test specimen. A second object of the present invention is to prevent heat intrusion in a testing device that performs various tests such as impact fatigue by applying a load to a specimen at cryogenic temperatures, and to reduce the amount of liquid helium used.
（問題点を解決するための手段）
第１の本発明は上記目的を達成するため、荷重伝達部を
有し該荷重伝達部を介して試験体に荷重を加えて衝撃疲
労などの各種試験を行なう試験機本体と、直流又は交流
電源に接続した電磁石と、前記荷重伝達部に取り付けた
磁性体とを備え、電磁石と磁性体とを所定間隔おいて対
向配設した。(Means for Solving the Problems) In order to achieve the above object, the first present invention has a load transmission section and applies a load to the test specimen via the load transmission section to perform various tests such as impact fatigue. The tester was equipped with a testing machine main body, an electromagnet connected to a DC or AC power source, and a magnetic body attached to the load transmission section, and the electromagnet and the magnetic body were arranged facing each other at a predetermined interval.
また、第２の本発明は上記目的を達成するため、荷重伝
達部を有し該荷重伝達部を介して試験体に荷重を加えて
衝撃疲労などの各種試験を行く【う試験機本体と、直流
又は交流電源に接続した電磁石と、前記荷重伝達部に取
り付（）た磁性体とを備え、前記試験機本体及び磁性体
を液体ヘリウムのような冷媒を収容したフライオスタラ
１−内に封入し、電磁石と磁性体とをクライオスタット
を介して対向配設した。In addition, in order to achieve the above object, the second invention includes a test machine main body, which has a load transmission section, and performs various tests such as impact fatigue by applying a load to the specimen through the load transmission section. It is equipped with an electromagnet connected to a DC or AC power supply and a magnetic body attached to the load transmission part, and the test machine main body and the magnetic body are enclosed in a fly Ostara 1- containing a refrigerant such as liquid helium. , an electromagnet and a magnetic material were arranged facing each other via a cryostat.
（作用）
第１の発明によれば、電源より電磁石に直流又は交流を
流して定常又は非定常磁場を発生させると、荷重伝達部
に取り付けた磁性体に磁力（吸引力）が発生するので、
これを荷重伝達部を介して試験体に伝える。(Function) According to the first invention, when direct current or alternating current is applied to the electromagnet from a power source to generate a steady or unsteady magnetic field, magnetic force (attractive force) is generated in the magnetic body attached to the load transmitting part.
This is transmitted to the test specimen via the load transmission section.
第２の発明によれば、電源より電磁石に直流又は交流を
流して定常又は非定常磁場を発生ざｌｉると、クライオ
スタット内の荷重伝達部に取り付けた磁性体に磁力（吸
引力）が発生り”るので、これを荷重伝達部を介して試
験体に伝える。According to the second invention, when a steady or unsteady magnetic field is generated by flowing direct current or alternating current through the electromagnet from a power source, magnetic force (attractive force) is generated in the magnetic body attached to the load transmission part in the cryostat. This is transmitted to the test specimen via the load transmission section.
（実施例）
第１図及び第２図は本発明の第１の実施例を示すもので
ある。図中１０は通常の引張り試験機本体で、試験体Ａ
の支持部１１ど試験体Ａに引張り力を加える荷重伝達部
１２とからなる。前記支持部１１は、基台１１ａと該基
台１１ａに植立した複数の支柱１１ｂと該支柱１１ｂ間
に架設した試験体への取付体１１Ｃとからなる。前記荷
重伝達部１２は、前記支持体１１の支柱１１ａ間に上下
動自在に配設され、軽量・高強度合金にて形成される。(Embodiment) FIGS. 1 and 2 show a first embodiment of the present invention. In the figure, 10 is the main body of a normal tensile tester, and test specimen A
It consists of a support part 11 and a load transmission part 12 that applies a tensile force to the test specimen A. The support section 11 is composed of a base 11a, a plurality of columns 11b erected on the base 11a, and an attachment body 11C for attaching to the test specimen installed between the columns 11b. The load transmitting section 12 is arranged to be vertically movable between the columns 11a of the support body 11, and is made of a lightweight, high-strength alloy.
２０は直流又は交流電源、２１は直流又は交流電源２０
の後段に接続した波形成形回路で、試験目的に応じた所
定の波形電流、例えば第２図に示す如きパルス電流を出
力し、これを電磁石３０に印加するようになっている。20 is a DC or AC power supply, 21 is a DC or AC power supply 20
A waveform shaping circuit connected at a subsequent stage outputs a predetermined waveform current according to the test purpose, for example, a pulse current as shown in FIG. 2, and applies this to the electromagnet 30.
電磁石３０は、鉄心３１と該鉄心３１の外周に捲回され
た」イル３２どからなる。コイル３２は銅製パイプから
なり、その両端は冷却礪３３に接続され、コイル３３の
作動中、コイル３３内を冷知水が循環づるようになって
いる。The electromagnet 30 consists of an iron core 31 and a coil 32 wound around the outer periphery of the iron core 31. The coil 32 is made of a copper pipe, and both ends of the coil 32 are connected to a cooling basin 33, so that cooling water is circulated within the coil 33 while the coil 33 is in operation.
４０はブロック状の磁性体であり、前記荷重伝達部１２
の下端に取り付けられ、その下部は支持部１１の取付体
１１ａの中央に設けた貫通孔１１ｄ内に臨みかつ上記電
磁石３０と所定間隔をおいて対向している。40 is a block-shaped magnetic body, and the load transmitting portion 12
The lower end faces the through hole 11d provided in the center of the mounting body 11a of the support portion 11, and faces the electromagnet 30 at a predetermined distance.
次に動作を説明する。まず、支持部１１の取付体１１Ｃ
と荷重伝達部１２の取付体１２ａとの間に取付治具を介
して試験体Ａを取り付ける。次に電源２０を作動させ、
波形成形回路２１を介して電磁石３０にパルス電流を流
すと、該電磁石３０に非定常磁場が発生し、これによっ
て磁性体４０に磁力が矢印方向に発生するので、荷重伝
達部１２が急激的に下降し、試験体Ａに衝撃を付与する
ことになる。このような動作を継続することによって試
験体Ａの衝撃疲労試験を実施できる。Next, the operation will be explained. First, the mounting body 11C of the support part 11
The test specimen A is attached between the test piece A and the attachment body 12a of the load transmission section 12 via an attachment jig. Next, activate the power supply 20,
When a pulse current is passed through the electromagnet 30 via the waveform shaping circuit 21, an unsteady magnetic field is generated in the electromagnet 30, and this generates a magnetic force in the magnetic body 40 in the direction of the arrow, so that the load transfer section 12 is suddenly It descends and applies a shock to test specimen A. By continuing such operations, the impact fatigue test of the test specimen A can be carried out.
なお、この実施例によれば、電磁石３０に印加する電流
波形を変えることにより、定常的な荷重もサイクリック
な荷重も任意に発生させることができる。Note that, according to this embodiment, by changing the current waveform applied to the electromagnet 30, both a steady load and a cyclic load can be generated arbitrarily.
第３図は本発明の第２の実施例を承りものである。第２
の実施例では、試験機本体１０及び磁性体４０を液体ヘ
リウムを収容したクライオスタット５０内に封入した。FIG. 3 shows a second embodiment of the invention. Second
In the example, the tester main body 10 and the magnetic material 40 were enclosed in a cryostat 50 containing liquid helium.
該クライオスタット５０は上部を開口したケース体５１
と開口を気密に月止づる蓋体５２とからなる。前記電磁
石３０と磁性体４０はクライオスタット５０の底部を介
在して互いに対向する如く近接配置される。なお、クラ
イオスタット５０の底部には相当大ぎな荷重がかかるの
で、十分な強度を確保するようにする。The cryostat 50 has a case body 51 with an open top.
and a lid body 52 that airtightly closes the opening. The electromagnet 30 and the magnetic body 40 are arranged close to each other so as to face each other with the bottom of the cryostat 50 interposed therebetween. Note that since a considerably large load is applied to the bottom of the cryostat 50, sufficient strength must be ensured.
その他の構成は第１の実施例と同様であり、その動作も
クライオスタット５０内で、すなわち極低温化で試験体
へに荷重が加えられる点を除いて第１の実施例と同様で
ある。The other configurations are the same as in the first embodiment, and the operation is also the same as in the first embodiment except that a load is applied to the test specimen within the cryostat 50, that is, at cryogenic temperature.
（発明の効果）
以上説明した如く第１の発明によれば、荷重伝達部を有
し該荷重伝達部を介して試験体に荷重を加えて衝撃疲労
などの各種試験を行なう試験機本体と、直流又は交流電
源に接続した電磁石と、前記荷重伝達部に取り付けた磁
性体とを備え、電磁石と磁性体とを所定間隔おいて対向
配設したので、電源より電磁石に直流又は交流を流して
定常又は非定常磁場を発生させると、荷重伝達部に取り
付【ノだ磁性体に磁力（吸引力）が発生するため、これ
を荷重伝達部を介して試験体に伝えることができ、従来
の圧力発生源、例えば油圧源で得た高圧力を機械的手段
を介して試験鍬本体の荷重伝達部に加えるものに比して
、荷重発生源を小型化でき、装置全体の小型化が図れる
利点がある。また第２の発明によれば、荷重伝達部を有
し該荷重伝達部を介して試験体に荷重を加えて衝撃疲労
などの各種試験を行なう試験機本体と、直流又は交流電
源に接続した電磁石と、前記荷重伝達部に取り付けた磁
性体とを備え、前記試験機本体及び磁性体を液体ヘリウ
ムのような冷媒を収容したクライオスタット内に封入し
、電磁石と磁性体とをクライオスタットを介して対向配
設したので、電源より電磁石に直流又は交流を流して定
常又は非定常磁場を発生させると、クライオスタット内
の荷重伝達部に取り付【プた磁性体に磁力（吸引力）が
発生するため、これを荷重伝達部を介して試験体に伝え
ることができ、熱侵入を防止し、液体ヘリウムの使用量
を減少することができる利点がある。(Effects of the Invention) As explained above, according to the first invention, there is provided a testing machine main body that has a load transmission section and performs various tests such as impact fatigue by applying a load to a test specimen via the load transmission section; It is equipped with an electromagnet connected to a DC or AC power supply and a magnetic body attached to the load transmission part, and the electromagnet and the magnetic body are arranged facing each other at a predetermined interval. Or, when an unsteady magnetic field is generated, a magnetic force (attractive force) is generated in the magnetic material attached to the load transmission part, and this can be transmitted to the test specimen via the load transmission part, and it is possible to Compared to a method that applies high pressure obtained from a source such as a hydraulic source to the load transmission section of the test hoe body through mechanical means, this method has the advantage that the load source can be made smaller and the entire device can be made more compact. be. Further, according to the second invention, there is provided a testing machine main body that has a load transmission section and performs various tests such as impact fatigue by applying a load to a test specimen via the load transmission section, and an electromagnet connected to a DC or AC power source. and a magnetic body attached to the load transmission section, the test machine main body and the magnetic body are enclosed in a cryostat containing a coolant such as liquid helium, and the electromagnet and the magnetic body are arranged facing each other via the cryostat. When a steady or unsteady magnetic field is generated by passing direct current or alternating current through the electromagnet from the power supply, magnetic force (attractive force) is generated in the magnetic material attached to the load transmission part in the cryostat. can be transmitted to the test specimen via the load transfer section, which has the advantage of preventing heat intrusion and reducing the amount of liquid helium used.
第１図及び第２図は本発明の第１の実施例を示づもので
、第１図は装置の要部を示す一部縦断概略構成図、第２
図は電磁石へ供給するパルス電流の波形図、第３図は本
発明の第２の実施例を示す第１図と同様の図である。1 and 2 show a first embodiment of the present invention, in which FIG. 1 is a partially vertical schematic configuration diagram showing the main parts of the device, and FIG.
The figure is a waveform diagram of the pulse current supplied to the electromagnet, and FIG. 3 is a diagram similar to FIG. 1 showing a second embodiment of the present invention.
Claims (2)
荷重を加えて衝撃疲労などの各種試験を行なう試験機本
体と、直流又は交流電源に接続した電磁石と、前記荷重
伝達部に取り付けた磁性体とを備え、電磁石と磁性体と
を所定間隔おいて対向配設したことを特徴とする試験装
置。(1) A testing machine main body that has a load transmission section and performs various tests such as impact fatigue by applying a load to the specimen through the load transmission section, an electromagnet connected to a DC or AC power source, and the load transmission section 1. A test device comprising: a magnetic body attached to a magnetic body; the electromagnet and the magnetic body are arranged facing each other at a predetermined interval.
荷重を加えて衝撃疲労などの各種試験を行なう試験機本
体と、直流又は交流電源に接続した電磁石と、前記荷重
伝達部に取り付けた磁性体とを備え、前記試験機本体及
び磁性体を液体ヘリウムのような冷媒を収容したクライ
オスタット内に封入し、電磁石と磁性体とをクライオス
タットを介して対向配設したことを特徴とする試験装置
。(2) A testing machine main body that has a load transmission section and performs various tests such as impact fatigue by applying a load to the test specimen via the load transmission section, an electromagnet connected to a DC or AC power source, and the load transmission section and a magnetic body attached to the test machine, the test machine main body and the magnetic body are enclosed in a cryostat containing a refrigerant such as liquid helium, and the electromagnet and the magnetic body are arranged facing each other via the cryostat. test equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17592085A JPS6236535A (en) | 1985-08-12 | 1985-08-12 | Tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17592085A JPS6236535A (en) | 1985-08-12 | 1985-08-12 | Tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6236535A true JPS6236535A (en) | 1987-02-17 |
Family
ID=16004557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17592085A Pending JPS6236535A (en) | 1985-08-12 | 1985-08-12 | Tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6236535A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04215036A (en) * | 1990-09-28 | 1992-08-05 | Shinken:Kk | Fatigue testing method by optional wave impact force and fatigue testing machine therefor |
| CN102879285A (en) * | 2012-10-22 | 2013-01-16 | 中国工程物理研究院流体物理研究所 | Device for realizing strong magnetic pressure oblique wave loading in solid materials |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5674637A (en) * | 1979-11-26 | 1981-06-20 | Mitsubishi Heavy Ind Ltd | Load device of mechanical load |
-
1985
- 1985-08-12 JP JP17592085A patent/JPS6236535A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5674637A (en) * | 1979-11-26 | 1981-06-20 | Mitsubishi Heavy Ind Ltd | Load device of mechanical load |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04215036A (en) * | 1990-09-28 | 1992-08-05 | Shinken:Kk | Fatigue testing method by optional wave impact force and fatigue testing machine therefor |
| CN102879285A (en) * | 2012-10-22 | 2013-01-16 | 中国工程物理研究院流体物理研究所 | Device for realizing strong magnetic pressure oblique wave loading in solid materials |
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