JPS6338703Y2 - - Google Patents
Info
- Publication number
- JPS6338703Y2 JPS6338703Y2 JP1981046148U JP4614881U JPS6338703Y2 JP S6338703 Y2 JPS6338703 Y2 JP S6338703Y2 JP 1981046148 U JP1981046148 U JP 1981046148U JP 4614881 U JP4614881 U JP 4614881U JP S6338703 Y2 JPS6338703 Y2 JP S6338703Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- counterweight
- compression mechanism
- electric motor
- axis
- 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.)
- Expired
Links
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Compressor (AREA)
- Windings For Motors And Generators (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Description
【考案の詳細な説明】
本考案は密閉形回転式圧縮機に関し、特に偏心
軸の回転によつて生じるモーメントを打ち消すた
めのつり合い錘を特有形状に改善することにより
密閉形回転式圧縮機の軸方向長を可及的に短くさ
せてコンパクト化をはかるようにしたものであ
る。[Detailed description of the invention] The present invention relates to a hermetic rotary compressor, and in particular, the shaft of the hermetic rotary compressor is improved by improving the counterweight into a unique shape to cancel the moment caused by the rotation of the eccentric shaft. The length in the direction is made as short as possible to achieve compactness.
密閉形回転式圧縮機は第１図に示すように、回
転式圧縮機構２と電動機１とを軸直結してケーシ
ング３内に収納した構造であるが、圧縮機構２の
クランク部１３（第４図参照）の軸心は軸９の回
転軸心に対し偏心しているために、この偏心に基
く力のアンバランスをなくするために、電動機
１′の回転子４′に対し、圧縮機構２側および反対
側（第１図において回転子４′の上側）の両エン
ドリング１８ａ，１８ｂの適宜個所につり合い錘
６′，７を夫々固着させており、前者の圧縮機構
２側のつり合い錘６′は電動機１′の回転子４′と
圧縮機構２のローラとを連結するための軸９を支
持する軸受に作用するモーメント（クランク部と
つり合い錘７とによつてモーメントが発生する）
を減少させる上で不可欠なものである。 As shown in FIG. 1, the hermetic rotary compressor has a structure in which a rotary compression mechanism 2 and an electric motor 1 are directly connected to each other and housed in a casing 3. (see figure) is eccentric with respect to the rotational axis of the shaft 9, so in order to eliminate the unbalance of force due to this eccentricity, the compression mechanism 2 side is and counterweights 6' and 7 are fixed to appropriate locations of both end rings 18a and 18b on the opposite side (above the rotor 4' in FIG. 1), respectively, and the counterweight 6' on the compression mechanism 2 side of the former is the moment acting on the bearing that supports the shaft 9 for connecting the rotor 4' of the electric motor 1' and the roller of the compression mechanism 2 (the moment is generated by the crank part and the counterweight 7)
It is essential to reduce the
この圧縮機構２側つり合い錘６′には可成りの
重量を持たせることが必要であるが、従来の密閉
形回転式圧縮機に用いられているつり合い錘６′
は、第２図イ，ロに例示する如き形状で電動機回
転子４′のエンドリング１８ａに対応した部分円
弧形で軸方向の断面は「方形」となつている。 The counterweight 6' on the compression mechanism 2 side needs to have a considerable weight, but the counterweight 6' used in the conventional closed rotary compressor
2 has a partially arcuate shape corresponding to the end ring 18a of the motor rotor 4', and has a rectangular cross section in the axial direction.
従つて、圧縮機の軸に平行な方向の長さ（高
さ）を高くしなければ必要重量が得られなく、圧
縮機の大形化に伴つて、つり合い錘６′の軸方向
取付長がより大となつて、圧縮機完成品の全長を
増大せしめる一因となつていた。 Therefore, the required weight cannot be obtained unless the length (height) in the direction parallel to the axis of the compressor is increased, and as the size of the compressor increases, the axial installation length of the counterweight 6' increases. This became a cause of increasing the total length of the completed compressor product.
さらに取付長が大きい形のつり合い錘６′を設
けたために、回転子４′と圧縮機構２とを連結す
る軸９が長くなつて、高速回転時の撓みが大とな
る傾向があり、設計時点でこの撓みを考慮しなけ
ればならない問題もあつた。 Furthermore, since the counterweight 6' with a long installation length is provided, the shaft 9 that connects the rotor 4' and the compression mechanism 2 becomes long, which tends to cause greater deflection during high-speed rotation. There was also a problem in which this deflection had to be taken into consideration.
このように従来の圧縮機がつり合い錘の形状に
よる制約で種々不都合な点を有していた事実に対
処して本考案は成されたものであつて、特に、電
動機回転子の圧縮機構側エンドリング部に固着し
たつり合い錘を、前記圧縮機構におけるフロント
ヘツドの中心から電動機側に突出する軸受部の周
りに回転可能に設けるとともに、回転子の中心に
遠去かる方向に前記取付基部から張り出した鍔部
とにより、回転子の軸方向には短く、該軸に直角
な方向には長い断面Ｌ状の錘に形成する一方、電
動機の固定子巻線エンドのうち圧縮機構側エンド
を、前記つり合い錘の回転空間が確保される如
く、回転子の軸に漸次遠去かる方向に湾曲処理し
てなる構成を特徴とする。 The present invention was developed in response to the fact that conventional compressors had various disadvantages due to restrictions due to the shape of the counterweight. A counterweight fixed to the ring part is rotatably provided around a bearing part that protrudes from the center of the front head of the compression mechanism toward the electric motor, and also extends from the mounting base in a direction away from the center of the rotor. The flange forms a weight with an L-shaped cross section that is short in the axial direction of the rotor and long in the direction perpendicular to the axis, while the compression mechanism side end of the stator winding end of the electric motor is connected to the counterbalance. It is characterized by a structure in which the axis of the rotor is gradually curved in a direction away from the rotor so that a rotation space for the weight is secured.
以下、本考案の具体的内容に関し添付図面を参
照しつつ詳細説明する。 Hereinafter, the specific contents of the present invention will be explained in detail with reference to the accompanying drawings.
第３図は本考案圧縮機の１例をケーシング３及
び電動機１の部分のみを縦断して示した内部構造
図であるが、ケーシング３内には電動機１を上、
回転式圧縮機構２を下に同軸的に配置して、圧縮
機構２側からフロントヘツド１０の中心部を貫通
し、かつ該ヘツド１０から電動機１側に突出して
設けた軸受部１０′に支持されて立上る軸９に電
動機１の回転子４を嵌装せしめることにより、電
動機１と回転式圧縮機構２とを軸直結し一体構造
となしている。 FIG. 3 is an internal structure diagram of an example of the compressor of the present invention, showing only the casing 3 and electric motor 1 in a longitudinal section.
The rotary compression mechanism 2 is disposed coaxially below and is supported by a bearing portion 10' that extends from the compression mechanism 2 side through the center of the front head 10 and protrudes from the head 10 toward the electric motor 1 side. By fitting the rotor 4 of the electric motor 1 onto the shaft 9 that stands up, the electric motor 1 and the rotary compression mechanism 2 are directly connected to the shaft and have an integral structure.
電動機１は回転子４、固定子８からなる交流誘
導電動機であつて、回転子４には、圧縮機構２側
（第３図の回転子４の下側）、反対側（第３図の回
転子４の上側）の両エンドリング１８ａ，１８ｂ
において軸９をはさみ対向する個所に、下部つり
合い錘６と上部つり合い錘７を夫々固着せしめて
いる。 The electric motor 1 is an AC induction motor consisting of a rotor 4 and a stator 8. (upper side of child 4) both end rings 18a, 18b
A lower counterweight 6 and an upper counterweight 7 are respectively fixed to opposing positions across the shaft 9.
なお、上部つり合い錘７は圧縮機構２のクラン
ク部１３が作用する偏心荷重を打ち消すためのも
のであるから、このクランク部１３の偏心が最も
少い部分に対応させてエンドリング１８ｂに固着
する。 Incidentally, since the upper counterweight 7 is for canceling the eccentric load exerted by the crank portion 13 of the compression mechanism 2, it is fixed to the end ring 18b in correspondence with the portion of the crank portion 13 where the eccentricity is least.
一方、回転式圧縮機構２は円筒シリンダー１１
の内部の構造が第４図に示されるが、吸入ポート
１５と吐出ポート１６に連通させた円筒シリンダ
ー１１の中心を回転中心とする軸９を設け、この
軸９のクランク部１３を介してローラ１２を遊嵌
しており、軸９を回転せしめると、該軸９に対し
偏心しているローラ１２は周縁が円筒シリンダー
１１の内壁に線接触しつつ転動するようになつて
いる。 On the other hand, the rotary compression mechanism 2 has a cylindrical cylinder 11
The internal structure of the is shown in FIG. 4. A shaft 9 is provided whose rotation center is the center of the cylindrical cylinder 11 which communicates with the suction port 15 and the discharge port 16. 12 is loosely fitted, and when the shaft 9 is rotated, the roller 12, which is eccentric with respect to the shaft 9, rolls while its peripheral edge is in line contact with the inner wall of the cylindrical cylinder 11.
１４は吸入ポート１５と吐出ポート１６とに挟
まれる中間位置に配設した仕切ブレードであつ
て、先端部が常にローラ１２の周縁に接触するよ
うに弾機力が加えられている。 Reference numeral 14 denotes a partition blade disposed at an intermediate position between the suction port 15 and the discharge port 16, and an elastic force is applied to the partition blade so that the tip thereof is always in contact with the periphery of the roller 12.
かかる構造は回転式圧縮機構２において周知で
あり、ローラ１２がシリンダー１１内を偏心的に
１回転する間に吸入と圧縮が成されるようになつ
ているが、この１回転の間にローラ１２は当然偏
心動するため、このときに遠心方向に向う偏心荷
重が生じこの力を打ち消すために上、下部つり合
い錘６，７が必要となることは前述した通りであ
る。 Such a structure is well known in the rotary compression mechanism 2, and suction and compression are performed while the roller 12 makes one eccentric rotation inside the cylinder 11. During this one rotation, the roller 12 Naturally, since it moves eccentrically, an eccentric load is generated in the centrifugal direction at this time, and as described above, the upper and lower counterweights 6 and 7 are required to cancel this force.
しかして、下部つり合い錘６は第３図および第
５図イ，ロに形状例を図示しているが、回転子４
のエンドリング１８ａに対応させた部分円弧片を
なす取付基部６−1と、該取付基部６−1から回転
子４の中心から遠去かる方向に張り出させた部分
円弧片をなす鍔部６−2とから形成されていて回
転子４の軸方向には短く、該軸に直角な方向には
長い断面Ｌ状をなしている。 Examples of the shape of the lower counterweight 6 are shown in FIGS. 3 and 5 A and B, but the rotor 4
A mounting base 6-1 forming a partial arc piece corresponding to the end ring 18a of the rotor 4, and a flange 6 forming a partial arc piece projecting from the mounting base 6-1 in a direction away from the center of the rotor 4. - 2 , and has an L-shaped cross section that is short in the axial direction of the rotor 4 and long in the direction perpendicular to the axis.
このつり合い錘６は鋳鉄等比重の大きい金属を
素材として成型されるが、その際に、前記取付基
部６−1の適当位置に取り付け穴１７が貫通して
設けられ、アルミダイカストよりなる回転子４の
エンドリング１８ａに設けた凸部を前記取り付け
穴１７，１７に圧貫挿して、飛び出している凸部
の先端を押潰するなどの簡単な手段で、つり合い
錘６を所定の個所に固着することができる。 This counterweight 6 is molded from a metal with a high specific gravity such as cast iron, and at that time, a mounting hole 17 is provided through the mounting base 6-1 at an appropriate position, and a rotor 4 made of aluminum die-casting is provided. The counterweight 6 is fixed in a predetermined position by a simple method such as inserting the protrusion provided on the end ring 18a into the mounting holes 17, 17 and crushing the tips of the protruding protrusions. be able to.
このようにつり合い錘６を回転子４の軸方向に
は短く、該軸に直角な方向には長い形状となすと
共に、電動機１の固定子８における巻線には、こ
れに対応した処理を施すのである。 In this way, the counterweight 6 is made short in the axial direction of the rotor 4 and long in the direction perpendicular to the axis, and the windings in the stator 8 of the electric motor 1 are treated accordingly. It is.
すなわち第３図に示す如く、電動機１の固定子
巻線エンド５ａ，５ｂのうち、圧縮機構２側の巻
線エンド５ａは、前記つり合い錘６の回転空間が
確保され得るような形態とするものであつて、回
転子４の軸方向に突出した巻線エンド５ａを回転
子４の軸から遠去かる方向に湾曲処理せしめて前
記回転空間を確保している。 That is, as shown in FIG. 3, among the stator winding ends 5a and 5b of the electric motor 1, the winding end 5a on the compression mechanism 2 side is configured such that a rotation space for the counterweight 6 can be secured. The winding end 5a protruding in the axial direction of the rotor 4 is curved in a direction away from the axis of the rotor 4 to secure the rotation space.
かく処理された固定子８の巻線エンド５ａは、
同種の従来の電動機１′（第１図参照）に比して、
回転子４の軸方向の長さが短くなる。 The winding end 5a of the stator 8 treated in this way is
Compared to the same type of conventional electric motor 1' (see Fig. 1),
The length of the rotor 4 in the axial direction becomes shorter.
本考案圧縮機は以上述べた構成になるものであ
るが、つり合い錘６は鍔部６−2を張り出させた
ことによつて、該鍔部６−2の重心が回転子４の
回転中心に対する距離は大きくなり、従つてつり
合い錘７とクランク部１３とが回転中に作用する
偶力（軸受部に偏心荷重として作用する力）を打
ち消すに十分な力を得ることができて、均衡の役
割りを十分に果し得る。 The compressor of the present invention has the above-mentioned configuration, but the counterweight 6 has a protruding flange 6-2 , so that the center of gravity of the flange 6-2 is aligned with the center of rotation of the rotor 4. Therefore, the distance between the counterweight 7 and the crank part 13 becomes large, and a sufficient force can be obtained to cancel out the couple (force acting as an eccentric load on the bearing part) that acts during rotation of the counterweight 7 and the crank part 13, and the balance is maintained. Able to fully fulfill the role.
さらに、つり合い錘６の回転子４軸方向の長さ
を短くし得るので、圧縮機構２を電動機１に近付
けて直結できる。 Furthermore, since the length of the counterweight 6 in the 4-axis direction of the rotor can be shortened, the compression mechanism 2 can be brought closer to the electric motor 1 and directly connected.
叙上の如く、本考案は密閉形回転式圧縮機にお
いて、電動機１の回転子４の圧縮機構側エンドリ
ング１８ａの部分に固着したつり合い錘６を、取
付基部６−1と、回転子４の中心に遠去ける方向
に取付基部６−1から張り出した鍔部６−2とによ
り、回転子４の軸方向には短く、該軸に直角な方
向には長い断面Ｌ状の錘に形成したことと、電動
機１の固定子巻線エンド５ａ，５ｂのうち、圧縮
機構側の巻線エンド５ａを回転子４の軸に遠去け
る方向に湾曲処理して前記つり合い錘６の回転空
間が確保される如く成したこととの両構成によつ
て、つり合い錘６および巻線エンド５ａの圧縮機
軸方向長を従来に比べて短くすることが可能とな
り、その分だけ電動機１と回転式圧縮機構２とを
近付けて直結できるので、圧縮機完成品の軸方向
長、即ち圧縮機高さを小さくし得る。 As described above, the present invention provides a hermetic rotary compressor in which the counterweight 6 fixed to the compression mechanism side end ring 18a of the rotor 4 of the electric motor 1 is connected to the mounting base 6-1 and the rotor 4. The flange 6-2 protrudes from the mounting base 6-1 in the direction away from the center, forming a weight with an L-shaped cross section that is short in the axial direction of the rotor 4 and long in the direction perpendicular to the axis. Of the stator winding ends 5a and 5b of the electric motor 1, the winding end 5a on the compression mechanism side is curved in a direction away from the axis of the rotor 4 to ensure a rotation space for the counterweight 6. With this structure, the length of the counterweight 6 and the winding end 5a in the axial direction of the compressor can be shortened compared to the conventional one, and the electric motor 1 and the rotary compression mechanism 2 can be shortened accordingly. Since the compressor and the compressor can be directly connected in close proximity, the axial length of the completed compressor, that is, the height of the compressor can be reduced.
さらに、前記つり合い錘６が軸受部１０′の周
りで回転する如く設けているので、圧縮機の軸に
対してつり合い錘６が撓みのモーメントを作用さ
せることがなく、円滑かつ安定した回転を行わせ
得る。 Furthermore, since the counterweight 6 is provided to rotate around the bearing portion 10', the counterweight 6 does not exert a bending moment on the shaft of the compressor, and can rotate smoothly and stably. can be made.
その結果、ケーシング３が小形化されてコスト
ダウンにつながり、さらに軸の短小化により、運
転中に該軸が撓む現象は軽減されて、電動機１の
回転子４と固定子８とが接触するなどの事故を未
然に防止し得る効果が奏される。 As a result, the casing 3 is made smaller, which leads to cost reduction, and the shaft is made shorter and smaller, which reduces the phenomenon that the shaft bends during operation, and the rotor 4 and stator 8 of the electric motor 1 come into contact with each other. This has the effect of preventing accidents such as the following.
第１図は従来の圧縮機の概要構造図、第２図
イ，ロは第１図中におけるつり合い錘の平面図、
正面図、第３図は本考案圧縮機の例の概要構造
図、第４図は第３図におけるＡ−Ａ線に沿う圧縮
機要部断面図、第５図イ，ロは第３図中における
つり合い錘の平面図、正面図である。
１……電動機、２……回転式圧縮機構、３……
ケーシング、４……回転子、５ａ……圧縮機構側
の巻線エンド、６……つり合い錘、６−1……取
付基部、６−2……鍔部、９……軸、１０……フ
ロントヘツド、１０′……軸受部、１２……ロー
ラ、１８ａ……エンドリング。
Figure 1 is a schematic structural diagram of a conventional compressor, Figure 2 A and B are plan views of the counterweight in Figure 1,
A front view, FIG. 3 is a schematic structural diagram of an example of the compressor of the present invention, FIG. 4 is a sectional view of the main parts of the compressor along line A-A in FIG. 3, and FIG. 5 A and B are in FIG. 3. FIG. 3 is a plan view and a front view of a counterweight in FIG. 1...Electric motor, 2...Rotary compression mechanism, 3...
Casing, 4... Rotor, 5a... Winding end on compression mechanism side, 6... Balance weight, 6-1 ... Mounting base, 6-2 ... Flange, 9... Shaft, 10... Front Head, 10'...Bearing section, 12...Roller, 18a...End ring.
Claims (1)
２と、電動機１とを軸直結してケーシング３内に
収納すると共に、電動機１の回転子４の圧縮機構
２側エンドリング１８ａの部分につり合い錘６を
固着して、前記圧縮機構２におけるフロントヘツ
ド１０の中心から前記電動機１側に突出する軸受
部１０′の周りに前記つり合い錘６を回転可能に
設けてなり、さらに前記つり合い錘６を取付基部
６−1と、回転子４の中心に遠去ける方向に前記
取付基部６−1から張り出した鍔部６−2とによつ
て回転子４の軸方向には短く、該軸に直角の方向
には長い断面Ｌ状の錘６に形成する一方、前記電
動機１の固定子巻線エンド５ａ，５ｂのうち、圧
縮機構２側の巻線エンド５ａを、前記つり合い錘
６の回転空間が確保される如く、回転子４の軸に
漸次遠去ける方向に湾曲処理してなることを特徴
とする密閉形回転式圧縮機。 A rotary compression mechanism 2 in which the axis of the roller 12 is eccentric is directly connected to the electric motor 1 and housed in the casing 3, and a counterweight is attached to the end ring 18a of the rotor 4 of the electric motor 1 on the side of the compression mechanism 2. 6 is fixed, and the counterweight 6 is rotatably provided around a bearing portion 10' protruding from the center of the front head 10 of the compression mechanism 2 toward the electric motor 1, and the counterweight 6 is further attached. The base 6-1 and the flange 6-2 projecting from the mounting base 6-1 in the direction away from the center of the rotor 4 are short in the axial direction of the rotor 4 and are perpendicular to the axis. The weight 6 is formed into a long L-shaped cross section in the direction, and a rotation space for the balance weight 6 is ensured at the winding end 5a on the compression mechanism 2 side among the stator winding ends 5a and 5b of the electric motor 1. A hermetic rotary compressor is characterized in that the axis of the rotor 4 is curved in a direction that gradually moves away from the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981046148U JPS6338703Y2 (en) | 1981-03-30 | 1981-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981046148U JPS6338703Y2 (en) | 1981-03-30 | 1981-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57159360U JPS57159360U (en) | 1982-10-06 |
| JPS6338703Y2 true JPS6338703Y2 (en) | 1988-10-12 |
Family
ID=29843005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981046148U Expired JPS6338703Y2 (en) | 1981-03-30 | 1981-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6338703Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074814A (en) * | 2009-09-30 | 2011-04-14 | Sanyo Electric Co Ltd | Rotary compressor and manufacturing method for the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5765574U (en) * | 1980-10-08 | 1982-04-19 |
-
1981
- 1981-03-30 JP JP1981046148U patent/JPS6338703Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57159360U (en) | 1982-10-06 |
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