JPS61274137A - Vibration insulating structure in closed type rotary compressor - Google Patents
Vibration insulating structure in closed type rotary compressorInfo
- Publication number
- JPS61274137A JPS61274137A JP11070386A JP11070386A JPS61274137A JP S61274137 A JPS61274137 A JP S61274137A JP 11070386 A JP11070386 A JP 11070386A JP 11070386 A JP11070386 A JP 11070386A JP S61274137 A JPS61274137 A JP S61274137A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- vibration
- base
- support plate
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
Abstract
Description
【発明の詳細な説明】
本発明は、密閉形ロータリ圧縮機の防振構造に関するも
のであり、その目的は運転中の騒音振動を静粛にぜんが
ためになされたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration isolation structure for a hermetic rotary compressor, and its purpose is to quietly suppress noise and vibration during operation.
従来の密閉形ロータリ圧縮機の防振構造を第１図により
説明する。ｌはケースであり、電動要素及び圧縮要素を
収納し圧縮機を形成している。２は足であり、円板形状
に成形されてケースｌの底面に固定されである。３はス
タットであり、棒状に成形されてケース１の上面に固定
されである。The vibration isolation structure of a conventional hermetic rotary compressor will be explained with reference to FIG. 1 is a case that houses an electric element and a compression element to form a compressor. Reference numeral 2 denotes a leg, which is formed into a disc shape and is fixed to the bottom surface of the case l. A stud 3 is shaped like a rod and is fixed to the upper surface of the case 1.
４は円筒ゴムであり、中心が中空で中間部外周にくびれ
を持って圧縮機を支持している。５は突起であり、円筒
ゴム４の上下に数個設けである。６はベースであり、円
筒ゴム４の下部突起５が挿入されている。７は上部ゴム
、８は支持具であり、圧縮機の上部スタット３を嵌合し
、圧縮機の倒れを防止するように支持している。Reference numeral 4 denotes a cylindrical rubber, which is hollow in the center and has a constriction around the outer periphery of the middle part to support the compressor. Numeral 5 denotes protrusions, and several protrusions are provided above and below the cylindrical rubber 4. 6 is a base into which a lower protrusion 5 of the cylindrical rubber 4 is inserted. Reference numeral 7 indicates an upper rubber, and 8 indicates a support member, into which the upper stud 3 of the compressor is fitted and supports the compressor to prevent it from falling down.
このような従来の密閉形ロータリ圧縮機の防振構造にお
いては、矢印で示す回転方向の振動が大きいためこの方
向の振動を防振する目的で使用されているものであるが
、防振ゴムのバネ定数を充分に小さくできないと同時に
円筒ゴム４及び足２の高さか大きくなるというものであ
った。In the vibration isolation structure of such conventional hermetic rotary compressors, the vibration in the direction of rotation shown by the arrow is large, so it is used for the purpose of isolating vibration in this direction. The spring constant could not be made sufficiently small, and at the same time, the heights of the cylindrical rubber 4 and the legs 2 became large.
すなわち、円筒ゴム４は、輸送時等に大きな振動か生じ
ても突起５かベース６及び足２から飛出さないようにす
るためにやわらか（することかできずバネ定数に限度が
あった。That is, the cylindrical rubber 4 cannot be made soft in order to prevent it from flying out from the protrusion 5, the base 6, and the legs 2 even if large vibrations occur during transportation, and the spring constant is limited.
そのために従来の円筒ゴム４のバネ定数は大きなものと
なり、一般に圧縮機の加振周波数か５０Ｈｚまたは６０
Ｈｚであるのに対して２０Ｈｚ〜４０Ｈｚ となってし
まい防振効果の少ないものになっていた。また、突起５
が足２及びベース６から飛び出さないようにするために
は、突起５を足２及びベース６の板厚に対して充分高く
せねばならず。Therefore, the spring constant of the conventional cylindrical rubber 4 is large, and generally the excitation frequency of the compressor is 50Hz or 60Hz.
Hz, but it was 20Hz to 40Hz, resulting in less vibration damping effect. In addition, the protrusion 5
In order to prevent the protrusion from protruding from the foot 2 and base 6, the protrusion 5 must be made sufficiently high relative to the thickness of the foot 2 and base 6.
そのため足２とケース１の底面との間に適当な間隔をと
り、また、ベース６を゛底上げする必要があるため圧縮
機の据付空間高さを大さくとらねばならないという欠点
を有するものであった。Therefore, it is necessary to provide an appropriate distance between the legs 2 and the bottom of the case 1, and also to raise the bottom of the base 6, which has the disadvantage that the height of the installation space for the compressor must be increased. Ta.
本発明の目的は、上述のととさ欠点を改善すべくなされ
たものであり、圧縮機の高さ方向に小形でかつ、回転方
向のバネ定数の小さい防振ゴムを提供することにある。An object of the present invention is to improve the above-mentioned shortcomings, and to provide a vibration isolating rubber that is small in the height direction of a compressor and has a small spring constant in the rotational direction.
すなわち、圧縮機の底面にコの字状の支持板を固着し、
防振ゴムが支持板を嵌合する溝部と袋部を有し、かつ、
圧縮機の中心軸上の位置に円柱部を有するものとし、支
持板を嵌合した袋部をベースの切欠穴に挿入することに
より大きな振れに対して防振し、円柱部はベース上に設
置することにより運転中の回転振動を防振する構造にし
たものである。In other words, a U-shaped support plate is fixed to the bottom of the compressor,
The anti-vibration rubber has a groove portion and a bag portion into which the support plate is fitted, and
The compressor has a cylindrical part located on the central axis, and the bag part fitted with the support plate is inserted into the notch hole in the base to prevent vibrations from large vibrations, and the cylindrical part is installed on the base. This structure is designed to prevent rotational vibrations during operation.
以下本発明の一実施例を第２図及び第３図により説明す
る（従来と同符号のものは同一物を示す）。９は支持板
であり、コの字状に形成されて固定部９−１と腕部９−
２を有し圧縮機の底面に固着されている。１０は防振ゴ
ムであり１１はベースである。１２は溝部であり、防振
ゴム１０に設けてあって支持板９の固定部９−１が嵌合
する。An embodiment of the present invention will be described below with reference to FIGS. 2 and 3 (the same reference numerals as in the prior art indicate the same parts). Reference numeral 9 denotes a support plate, which is formed in a U-shape and has a fixed part 9-1 and an arm part 9-.
2 and is fixed to the bottom of the compressor. 10 is a vibration-proof rubber, and 11 is a base. Reference numeral 12 denotes a groove, which is provided in the vibration isolating rubber 10 and into which the fixing part 9-1 of the support plate 9 is fitted.
１３は袋部であり、防振ゴムＩＯに設けてあって支持板
９の腕部９−２が小さな間隙を持って嵌合するような袋
状になっている。１４は円柱部であり、防振ゴムｌＯの
中心部で円柱形状をしている。Reference numeral 13 denotes a bag portion, which is provided on the vibration isolating rubber IO and has a bag shape into which the arm portion 9-2 of the support plate 9 fits with a small gap. Reference numeral 14 denotes a cylindrical portion, which has a cylindrical shape at the center of the vibration isolating rubber lO.
１５は切欠穴であり、ベース１１にあけられて防振ゴム
１０の袋部１３が挿入される。１６は凹部であり、ベー
ス１１に設けられ防振ゴム１０の円柱部１４が嵌合する
。Reference numeral 15 denotes a notch hole, which is drilled in the base 11 and into which the bag portion 13 of the anti-vibration rubber 10 is inserted. Reference numeral 16 denotes a recessed portion, which is provided in the base 11 and into which the cylindrical portion 14 of the vibration isolating rubber 10 is fitted.
このように構成された本発明の密閉形ロータリ圧縮機の
防振構造では、支持板９が防振ゴム１０の溝部１２及び
袋部１３に嵌合され、この袋部１３がベース１１に設け
られた切欠穴１５に挿入されているため輸送時等におい
て大きな加振を受けても支持板９の腕部９−２が袋部１
３を介してベース１１に当るので防振すると同時に圧縮
機かベース１１と支持具８の間から飛び出すのを防止す
】ることができる。一方、運転中の振動に対しては、支
持板９の固定部９−１か溝部１２に沿って嵌合されてい
るので支持板９の腕部９−２が袋部１３内で間隙を持っ
た状態に保持されており、圧縮機の支持は、圧縮機の中
心軸上の円柱部１４と上部ゴム７とでなされる。このよ
うな支持においては、圧縮機の回転方向に力を加えたと
きに円柱部１４と上部ゴム７に生ずる反力が少ない、す
なわち、円柱部１４と上部ゴム７か上と下とで回転軸の
働を生ずる。従って、円柱部１４の高さが小さくても回
転方向のバネ定数が大幅に小さいものとなり、そのため
、回転方向の固有振動数ｆｎは、バネ定数Ｋ （ｋｇｃ
ｍ／ ｒａｄ ）、圧縮機ノ慣性−ｖ−−；ｔントＪｃ
ｋｇｃｍｓ’ ） とするとｆｎ＝１／２π「テ示され
、Ｋか小さくなるのでｆｎも小さいものとなり、圧縮機
の加振周波数が５０Ｈｚまたは６０Ｈｚに対してｌＯ数
Ｈｚ以下にも小さく出来るので防振効果が大幅に向上す
ることかでさるものである。In the vibration isolation structure of the hermetic rotary compressor of the present invention configured as described above, the support plate 9 is fitted into the groove 12 and the bag 13 of the vibration isolator 10, and the bag 13 is provided on the base 11. Since the arm portion 9-2 of the support plate 9 is inserted into the notch hole 15, the arm portion 9-2 of the support plate 9 remains in the bag portion 1 even when subjected to large vibrations during transportation.
3 to the base 11, it is possible to provide vibration isolation and at the same time prevent the compressor from jumping out from between the base 11 and the support 8. On the other hand, with respect to vibrations during operation, since the fixed part 9-1 of the support plate 9 is fitted along the groove part 12, the arm part 9-2 of the support plate 9 has a gap inside the bag part 13. The compressor is supported by the cylindrical portion 14 on the central axis of the compressor and the upper rubber 7. In this type of support, when a force is applied in the direction of rotation of the compressor, the reaction force generated in the columnar part 14 and the upper rubber 7 is small. will occur. Therefore, even if the height of the cylindrical portion 14 is small, the spring constant in the rotational direction is significantly small. Therefore, the natural frequency fn in the rotational direction is determined by the spring constant K (kgc
m/rad), compressor inertia -v;t Jc
kgcms'), then fn = 1/2π'te is shown, and since K is small, fn is also small, and the excitation frequency of the compressor can be reduced to less than a few Hz of 1O compared to 50Hz or 60Hz, so vibration isolation is possible. This is surprising because the effectiveness is greatly improved.
以上説明のごとく本発明によれば、防振構造が小さくで
き輸送時の大加振に対しても、運転中の振動に対しても
優れた防振効果を発揮するものであり、圧縮機の据付空
間の減少並びに振動に伴う騒音の低減にも大きな効果を
有するものである。As explained above, according to the present invention, the vibration isolating structure can be made small and exhibits an excellent vibration isolating effect against large vibrations during transportation and vibrations during operation. This has great effects in reducing installation space and noise caused by vibration.
第１図は、従来の密閉形ロータリ圧縮機の防振構造を示
す。第２図は、本発明の一実施例における防振構造であ
り、第３図は、本発明の防振構造の一部分解斜視図であ
る。
１・・・ケース、２・・・足、３・・・スタット、４・
・・円ｆｉＪゴム、５・・・突起、６．１１・・・ベー
ス、７・・・上部ゴム、８・・・支持具、９・・・支持
板、９−１°°°固定部・９−２・・・腕部、１０・・
・防振ゴム、１２°゛°溝部・ １３・・・袋部、１４
・・・円柱部、１５・・・切欠穴、１６・・・凹部。
ｖＬ ｌ 口
第２図 第３図FIG. 1 shows the vibration isolation structure of a conventional hermetic rotary compressor. FIG. 2 shows a vibration isolating structure according to an embodiment of the present invention, and FIG. 3 is a partially exploded perspective view of the vibration isolating structure of the present invention. 1...Case, 2...Foot, 3...Stat, 4...
... Circle fiJ rubber, 5... Protrusion, 6.11... Base, 7... Upper rubber, 8... Support tool, 9... Support plate, 9-1°°° fixing part. 9-2...Arm part, 10...
- Anti-vibration rubber, 12° groove part - 13... Bag part, 14
... Cylindrical part, 15... Notch hole, 16... Recessed part. vL l Mouth Figure 2 Figure 3
Claims (1)
着し上部ゴム（７）と支持具（８）で圧縮機上部を防振
支持し、圧縮機のケース（１）の底面に固定部（９−１
）と腕部（９−２）を有するコの字状の支持板（９）を
固着し、防振ゴム（１０）に支持板（９）と嵌合する溝
部（１２）と袋部（１３）を設け、かつ、おおむね圧縮
機の中心軸上の位置に円柱部（１４）を設け、支持板（
９）の腕部（９−２）を挿入した袋部（１３）をベース
（１１）に設けた切欠穴（１５）に嵌入し、円柱部（１
４）をベース（１１）上に設置することにより圧縮機下
部を防振することを特徴とした密閉形ロータリ圧縮機の
防振構造。1. A stud (3) is fixed to the top of the compressor case (1), the upper rubber (7) and support (8) are used to provide anti-vibration support for the top of the compressor, and a fixed part is attached to the bottom of the compressor case (1). (9-1
) and an arm portion (9-2), and a groove portion (12) and a bag portion (13) that fit with the support plate (9) are attached to the anti-vibration rubber (10). ), and a cylindrical part (14) is provided at a position approximately on the central axis of the compressor, and a support plate (
The bag part (13) into which the arm part (9-2) of 9) is inserted is inserted into the notch hole (15) provided in the base (11), and the cylindrical part (1
4) is installed on a base (11) to isolate the lower part of the compressor from vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11070386A JPS61274137A (en) | 1986-05-16 | 1986-05-16 | Vibration insulating structure in closed type rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11070386A JPS61274137A (en) | 1986-05-16 | 1986-05-16 | Vibration insulating structure in closed type rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61274137A true JPS61274137A (en) | 1986-12-04 |
Family
ID=14542315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11070386A Pending JPS61274137A (en) | 1986-05-16 | 1986-05-16 | Vibration insulating structure in closed type rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61274137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225597A (en) * | 2013-04-19 | 2013-07-31 | 广州万宝集团压缩机有限公司 | Refrigeration compressor capable of flexible vibration attenuation for engine core |
-
1986
- 1986-05-16 JP JP11070386A patent/JPS61274137A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225597A (en) * | 2013-04-19 | 2013-07-31 | 广州万宝集团压缩机有限公司 | Refrigeration compressor capable of flexible vibration attenuation for engine core |
| CN103225597B (en) * | 2013-04-19 | 2015-07-08 | 广州万宝集团压缩机有限公司 | Refrigeration compressor capable of flexible vibration attenuation for engine core |
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