JPH0690540A - Rotary electric machine - Google Patents
Rotary electric machineInfo
- Publication number
- JPH0690540A JPH0690540A JP23790192A JP23790192A JPH0690540A JP H0690540 A JPH0690540 A JP H0690540A JP 23790192 A JP23790192 A JP 23790192A JP 23790192 A JP23790192 A JP 23790192A JP H0690540 A JPH0690540 A JP H0690540A
- Authority
- JP
- Japan
- Prior art keywords
- electric machine
- installation
- rotary electric
- case
- foundation
- 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
- Motor Or Generator Frames (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、回転電機のケースから
延びる複数本の据え付け脚を基礎にボルトで固定して据
え付けられる回転電機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary electric machine that is installed by fixing a plurality of installation legs extending from a case of the rotary electric machine to a base with bolts.
【０００２】[0002]
【従来の技術】図４は従来のこの種の回転電機の据え付
け構造を示したものである。同図において、１は電動機
の本体ケース、２は電動機１の据え付け脚、３は据え付
けボルト、４は基礎、５は基礎４に埋設したベッド、６
はベッド５を基礎４に固定するための基礎ボルトであ
る。2. Description of the Related Art FIG. 4 shows a conventional installation structure for a rotary electric machine of this type. In the figure, 1 is a body case of an electric motor, 2 is a mounting leg of the electric motor 1, 3 is a mounting bolt, 4 is a foundation, 5 is a bed embedded in the foundation 4, 6
Is a foundation bolt for fixing the bed 5 to the foundation 4.
【０００３】この据え付け構造は、図５に示す振動系と
同じである。図５において、ｍは質量、ｋはばね定数を
示し、ばね定数ｋのばねで支持された系の固有振動数ｆ
＝ｋ（ｋ／ｍ・ｇ）1/2 となる。ｇは重力加速度であ
る。即ち、電動機１の据え付け脚２は振動系の固有値を
決定する要素を持っていることになる。This installation structure is the same as the vibration system shown in FIG. In FIG. 5, m is a mass, k is a spring constant, and the natural frequency f of the system supported by a spring having a spring constant k
= K (k / m · g) 1/2 . g is the gravitational acceleration. That is, the installation leg 2 of the electric motor 1 has an element that determines the eigenvalue of the vibration system.
【０００４】[0004]
【発明が解決しようとする課題】ところが、据え付けボ
ルト３の本数や据え付け脚２の長さ、厚さは設計・製造
の段階で決定されるため、系の振動の固有値もこの段階
で決まってしまうことになる。このため、現地据え付け
後の基礎の状態等によつて系の加振力の中に固有値と同
じ周波数が存在した場合には共振現象が生ずることがあ
る。However, since the number of the mounting bolts 3 and the length and thickness of the mounting legs 2 are determined at the designing / manufacturing stage, the eigenvalue of the vibration of the system is also determined at this stage. It will be. For this reason, when the same frequency as the eigenvalue exists in the excitation force of the system due to the condition of the foundation after the site installation, a resonance phenomenon may occur.
【０００５】これを防止するためには、電動機本体の固
有値を変化させるか、架台の剛性を変化させる等が行な
われるが、いずれにしても、分解・組立を行なうことに
なるので、多大のコストと時間を使うことになる。In order to prevent this, the eigenvalue of the electric motor main body is changed, or the rigidity of the gantry is changed. In any case, however, disassembling / assembling is required, which results in a large cost. And will spend time.
【０００６】本発明はこの問題を解消するためになされ
たもので、据え付け後の共振現象の発生を簡単に抑制す
ることができる回転電機を提供することを目的とする。The present invention has been made to solve this problem, and an object of the present invention is to provide a rotating electric machine capable of easily suppressing the occurrence of a resonance phenomenon after installation.
【０００７】[0007]
【課題を解決するための手段】本発明は上記目的を達成
するために、In order to achieve the above object, the present invention provides:
【０００８】請求項１では、回転電機のケースから延び
る複数本の据え付け脚を基礎にボルトで固定して据え付
けられる回転電機において、上記据え付け脚に伸・縮力
を与える加圧調整機構を設けたものでる。According to a first aspect of the present invention, in a rotary electric machine in which a plurality of installation legs extending from a case of the rotary electric machine are fixed by bolts on a foundation, a pressure adjusting mechanism for providing extension / contraction force to the installation legs is provided. It comes.
【０００９】請求項２では、調整機構を、ケースと基礎
との間にわたって設けた。In the second aspect, the adjusting mechanism is provided between the case and the foundation.
【００１０】請求項３では、調整機構は、据え付け脚相
互間にわたって設けた。In the third aspect, the adjusting mechanism is provided between the mounting legs.
【００１１】[0011]
【作用】本発明では、加圧調整機構で、据え付け脚に伸
張力や圧縮力を作用させることができるので、回転電機
据え付け後に、加圧調整機構を操作するだけで、据え付
け脚の剛性を変化させ、系の固有振動数を変えて共振か
ら外すことができる。In the present invention, since the extension force and the compression force can be applied to the installation leg by the pressure adjusting mechanism, the rigidity of the installation leg can be changed only by operating the pressure adjusting mechanism after installing the rotating electric machine. Then, the natural frequency of the system can be changed to remove it from resonance.
【００１２】[0012]
【実施例】以下、本発明の１実施例を図面を参照して説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１３】図１および図２において、７は肉厚の加圧
調整板であつて、本体ケース１ａから翼状に突出し、ね
じ孔７ａが形成されており、この加圧調整板７に加圧調
整ボト８ａが螺合貫通している。８ｂは加圧調整ボトを
固定するためのナットである。In FIG. 1 and FIG. 2, reference numeral 7 denotes a thick pressure adjusting plate, which protrudes like a wing from the main body case 1a and has a screw hole 7a formed therein. The bottom 8a is screwed through. Reference numeral 8b is a nut for fixing the pressure adjusting bottom.
【００１４】本実施例において、電動機の据え付け後
に、共振現象が発生した場合に、加圧調整ボト８ａを回
動して図においてボルト先端部が基礎４に圧接するまで
下に下げ、締め付ける。これにより、据え付け脚２の剛
性（ばね定数）が変化し、共振から外れる。In this embodiment, when a resonance phenomenon occurs after installation of the electric motor, the pressure adjusting bottom 8a is rotated to lower the bolt until the tip of the bolt comes into pressure contact with the foundation 4 in the figure, and tightens the bolt. As a result, the rigidity (spring constant) of the mounting leg 2 changes and deviates from resonance.
【００１５】図３は本発明の第２の実施例を示したもの
である。図３においては、加圧調整ボト８ａは相隣る据
え付け脚２を螺合貫通しており、このボルト８ａで両据
え付け脚２の剛性を高めている。FIG. 3 shows a second embodiment of the present invention. In FIG. 3, the pressure adjusting bottom 8a is threadedly penetrated through the adjacent installation legs 2, and the rigidity of both the installation legs 2 is enhanced by the bolt 8a.
【００１６】[0016]
【発明の効果】本発明は以上説明した通り、回転電機の
据え付け脚の剛性を調整する調整機構を有しているの
で、共振現象が発生した場合には、この調整機構を操作
するだけでよく、従来のように、据え付け後に解体した
りする必要がなくなり、共振現象から外すための手間と
費用を大幅に低減することかぎできる。As described above, the present invention has the adjusting mechanism for adjusting the rigidity of the installation leg of the rotating electric machine. Therefore, when the resonance phenomenon occurs, it is sufficient to operate this adjusting mechanism. As in the conventional case, there is no need to disassemble after installation, and the labor and cost for removing from the resonance phenomenon can be greatly reduced.
【図１】本発明の第１の実施例を示す正面図である。FIG. 1 is a front view showing a first embodiment of the present invention.
【図２】上記第１の実施例におけるＩ−Ｉ矢視図であ
る。FIG. 2 is a view on arrow I-I in the first embodiment.
【図３】本発明の第２の実施例を示す正面図である。FIG. 3 is a front view showing a second embodiment of the present invention.
【図４】従来の据え付け構造を示す正面図である。FIG. 4 is a front view showing a conventional installation structure.
【図５】上記据え付け構造の等価系を示す図である。FIG. 5 is a diagram showing an equivalent system of the installation structure.
１ 電動機本体のケース ２ 据え付け脚 ３ 据え付けボルト ４ 基礎 ５ ベッド ６ 基礎ボルト ７ 駆動モータ ７ 加圧調整板 ８ａ 加圧調整ボルト ８ｂ 固定ナット 1 Case of electric motor main body 2 Installation leg 3 Installation bolt 4 Foundation 5 Bed 6 Foundation bolt 7 Drive motor 7 Pressure adjustment plate 8a Pressure adjustment bolt 8b Fixed nut
Claims (3)
え付け脚を基礎にボルトで固定して据え付けられる回転
電機において、上記据え付け脚に伸・縮力を与える加圧
調整機構が設けられていることを特徴とする回転電機。1. A rotary electric machine in which a plurality of installation legs extending from a case of the rotary electric machine are fixed to a base by bolts, and a pressurizing adjustment mechanism is provided to apply expansion / contraction force to the installation legs. A rotating electric machine characterized by.
って設けられていることを特徴とする請求項１記載の回
転電機。2. The rotating electric machine according to claim 1, wherein the adjusting mechanism is provided between the case and the foundation.
て設けられていることを特徴とする請求項１記載の回転
電機。3. The rotating electric machine according to claim 1, wherein the adjusting mechanism is provided between the mounting legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23790192A JPH0690540A (en) | 1992-09-07 | 1992-09-07 | Rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23790192A JPH0690540A (en) | 1992-09-07 | 1992-09-07 | Rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0690540A true JPH0690540A (en) | 1994-03-29 |
Family
ID=17022113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23790192A Pending JPH0690540A (en) | 1992-09-07 | 1992-09-07 | Rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0690540A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016116408A (en) * | 2014-12-17 | 2016-06-23 | 東芝三菱電機産業システム株式会社 | Rotary electric machine and resonance avoiding method |
| WO2018003735A1 (en) * | 2016-06-28 | 2018-01-04 | 株式会社日立製作所 | Rotary electrical machine |
| US10259226B2 (en) | 2011-11-07 | 2019-04-16 | Ricoh Company, Ltd. | Photopolymerizable inkjet ink |
| CN110890801A (en) * | 2019-12-27 | 2020-03-17 | 陕西理工大学 | Mechanical sliding device for motor base of crusher |
-
1992
- 1992-09-07 JP JP23790192A patent/JPH0690540A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10259226B2 (en) | 2011-11-07 | 2019-04-16 | Ricoh Company, Ltd. | Photopolymerizable inkjet ink |
| US10562311B2 (en) | 2011-11-07 | 2020-02-18 | Ricoh Company, Ltd. | Photopolymerizable inkjet ink |
| JP2016116408A (en) * | 2014-12-17 | 2016-06-23 | 東芝三菱電機産業システム株式会社 | Rotary electric machine and resonance avoiding method |
| WO2018003735A1 (en) * | 2016-06-28 | 2018-01-04 | 株式会社日立製作所 | Rotary electrical machine |
| CN110890801A (en) * | 2019-12-27 | 2020-03-17 | 陕西理工大学 | Mechanical sliding device for motor base of crusher |
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