JPS6368781A - Piston device for compressor - Google Patents
Piston device for compressorInfo
- Publication number
- JPS6368781A JPS6368781A JP21229986A JP21229986A JPS6368781A JP S6368781 A JPS6368781 A JP S6368781A JP 21229986 A JP21229986 A JP 21229986A JP 21229986 A JP21229986 A JP 21229986A JP S6368781 A JPS6368781 A JP S6368781A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- spherical seat
- sphere
- spherical
- compressor
- 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
- 230000006835 compression Effects 0.000 description 14
- 238000007906 compression Methods 0.000 description 14
- 238000002788 crimping Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
- F16J1/22—Connection to driving members with connecting-rods, i.e. pivotal connections with universal joint, e.g. ball-joint
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷蔵庫等に使用される圧縮機のピストン装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a piston device for a compressor used in a refrigerator or the like.
従来の技術
近年、圧縮機においては、構成が簡単で安価に製作出来
る事から、クランク軸とピストンとの連結には、ボール
ジヨイントを用いる構成が注目を浴びている。以下図を
参照しながら、上記した従来の圧縮機のポールシロイン
ドを用いたピストン装置の一例について説明する。BACKGROUND OF THE INVENTION In recent years, a compressor using a ball joint for connecting a crankshaft and a piston has been attracting attention because it has a simple structure and can be manufactured at low cost. An example of a piston device using the above-mentioned conventional compressor pole cylinder will be described below with reference to the drawings.
第４図は、従来の密閉型電動圧縮機の構造を示す断面図
、第６図は従来の密閉型電動圧縮機のボールジヨイント
を用いたピストン装置の構造を示す断面図である。FIG. 4 is a sectional view showing the structure of a conventional hermetic electric compressor, and FIG. 6 is a sectional view showing the structure of a piston device using a ball joint of the conventional hermetic electric compressor.
第４図、第５図において、１はモータで、クランク軸２
を回転させる。３はケーシングで、モータ１の固定子部
及び、シリンダプロ・ツク４を固定する。５は圧縮機の
ピストン装置である。上記クランク軸２．ケーシング３
．シリンダブロック４及びモータ１は、密閉容器６に収
められる。７はピストン装置５におけるピストン、８は
前記ピストン７の底面に設けられた球座で、連接棒９に
設けられた球体１ｏと回動自在に連接する。１１は前記
球体１０を保持する保持部である。１２は前記保持部１
１をかしめた時に生じる遊びを無くす為、前記保持部１
１と前記球体１ｏの間に介在させた弾性材である。なお
、連接棒９は、一端に球体１０を有し、他端にクランク
軸２に連接する環状の連結部９ａを有する。In Figures 4 and 5, 1 is a motor, and crankshaft 2
Rotate. 3 is a casing that fixes the stator section of the motor 1 and the cylinder protector 4. 5 is a piston device of the compressor. The above crankshaft 2. Casing 3
．． The cylinder block 4 and motor 1 are housed in a closed container 6. 7 is a piston in the piston device 5, and 8 is a spherical seat provided on the bottom surface of the piston 7, which is rotatably connected to a spherical body 1o provided on a connecting rod 9. Reference numeral 11 denotes a holding portion that holds the sphere 10. 12 is the holding part 1
In order to eliminate the play that occurs when crimping 1, the holding part 1
1 and the spherical body 1o. The connecting rod 9 has a sphere 10 at one end and an annular connecting portion 9a connected to the crankshaft 2 at the other end.
以上の構成において、ピストン７と連接棒９の連接部は
、球体１ｏを球座８に連接させ保持部１１をかしめた時
に生ずる遊びを無くす為に設けた弾性材１２の弾性力で
、球体１０を球座８に圧着する事により理想的を摺動寸
法を得ながら、ｘ 、 ｙ。In the above configuration, the connecting portion between the piston 7 and the connecting rod 9 is connected to the spherical body 10 by the elastic force of the elastic material 12 provided to eliminate the play that occurs when the spherical body 1o is connected to the spherical seat 8 and the holding portion 11 is caulked. x, y while obtaining ideal sliding dimensions by crimping the ball to the ball seat 8.
ｚ軸方向の自由度を確保しようとするものである。This is intended to ensure freedom in the z-axis direction.
発明が解決しようとする問題点
しかしながら、上記の様な構成では、弾性材１２の摩耗
により、ポールジツイント部の耐久性を低下させる欠点
があり、また、弾性材１２を介在させないボールジコイ
ント装置では、球座と１球体間の理想的な摺動状態が得
難く、遊びを生じ、ピストン装置の耐久性を低下させる
と言う問題を有していた。Problems to be Solved by the Invention However, with the above configuration, there is a drawback that the durability of the pole joint part is reduced due to abrasion of the elastic member 12, and furthermore, the ball joint unit without the elastic member 12 is In this case, it is difficult to obtain an ideal sliding condition between the ball seat and one of the spheres, which causes play and reduces the durability of the piston device.
本発明は、上記問題点に鑑み、低価格で耐摩耗性が高く
、理想的な摺動寸法が容易に得られる圧縮機のピストン
装置を提供するものである。In view of the above-mentioned problems, the present invention provides a piston device for a compressor that is inexpensive, has high wear resistance, and allows ideal sliding dimensions to be easily obtained.
問題点を解決するための手段
上記問題点を解決する為に、本発明の圧縮機のピストン
装置は、クランク軸と、底面に球座を有するピストンと
、一端に前記ピストンの球座と連接する球体を有し、他
端にクランク軸と連接する環状の連接部を有する連接棒
と、前記ピストンの内側面に挿入され、前記球体を前記
球座に押え付ける圧着スプリングと、前記圧着スプリン
グをピストンに固定する固定具とから構成したものであ
る。Means for Solving the Problems In order to solve the above problems, a piston device for a compressor of the present invention includes a crankshaft, a piston having a spherical seat on the bottom surface, and one end connected to the spherical seat of the piston. a connecting rod having a spherical body and an annular connecting portion connected to the crankshaft at the other end; a crimping spring inserted into the inner surface of the piston to press the spherical body against the spherical seat; It consists of a fixture to be fixed to.
作 用
本発明は、上記した構成により、固定具に端面を当接さ
せる事によりピストンに固定された圧着スプリングのバ
ネ力により球体は常にピストンの球座に押えられる。Operation According to the present invention, with the above-described configuration, the spherical body is always pressed against the spherical seat of the piston by the spring force of the compression spring fixed to the piston by bringing the end face into contact with the fixture.
実施例
以下本発明の一実施例について図面を参照しながら説明
する。ピストン装置以外は従来例と同じであるので詳細
な説明を省略する。EXAMPLE An example of the present invention will be described below with reference to the drawings. Since everything other than the piston device is the same as the conventional example, detailed explanation will be omitted.
第１図は、本発明の一実施例における圧縮機のピストン
装置を示す断面図である。第２図は第１図における固定
具の斜視図、第３図は圧着スプリングの斜視図である。FIG. 1 is a sectional view showing a piston device of a compressor in one embodiment of the present invention. 2 is a perspective view of the fixture in FIG. 1, and FIG. 3 is a perspective view of the compression spring.
第１図において１３はピストン、１４は前記ピストン１
３の底面に設けられた球座で、連接＠ １８に設けられ
た球体１０に連接する。１８ａは環状の連接部である。In FIG. 1, 13 is a piston, 14 is the piston 1
A spherical seat provided on the bottom surface of 3 connects to the spherical body 10 provided in connection @ 18. 18a is an annular connecting portion.
１５はピストン内側面１６に挿入される凹状の圧着スプ
リングで、球体１ｏを球座１４に押さえ付け、バネ力で
球体１ｏを保持するものである。１７は前記圧着スプリ
ング１５をピストン内側面１６に固定する環状の固定具
であり、ピストン内側面１６に、溶接又は接着固定され
る。Reference numeral 15 denotes a concave compression spring inserted into the inner surface 16 of the piston, which presses the spherical body 1o against the spherical seat 14 and holds the spherical body 1o by spring force. Reference numeral 17 denotes an annular fixture for fixing the compression spring 15 to the inner surface 16 of the piston, and is fixed to the inner surface 16 of the piston by welding or adhesive.
第２図は・第１図の固定具１７を示し、２ｏは前記連接
棒１８を通す開口部である。第３図は、第１図の圧着ス
プリング１６を示しピストン背面より球体１０及び、球
座１４に油を導くスリット１９が側面に設けられている
。FIG. 2 shows the fixture 17 of FIG. 1, and 2o is an opening through which the connecting rod 18 is passed. FIG. 3 shows the compression spring 16 shown in FIG. 1, and a slit 19 is provided on the side surface to guide oil from the back of the piston to the sphere 10 and the spherical seat 14.
以上の構成による密閉型電動圧縮機のピストン装置につ
いて、以下第１図、第２図、第３図を用いて動作を説明
する。The operation of the piston device of the hermetic electric compressor having the above configuration will be described below with reference to FIGS. 1, 2, and 3.
球体１ｏを球座１４に連接させ、ピストン内側面１６に
挿入した圧着スプリング１６のバネ力により球体１０を
球座１４に押え付ける。又前記圧着スプリング１５は固
定具１Ｔにより固定される。The spherical body 1o is connected to the spherical seat 14, and the spherical body 10 is pressed against the spherical seat 14 by the spring force of a compression spring 16 inserted into the inner surface 16 of the piston. Further, the compression spring 15 is fixed by a fixture 1T.
前記固定具１７は、開口部２ｏより連接棒１８を通しピ
ストン内側面１６に挿入され、溶接、又は接着等により
前記ピストン内側面に固定する事により、理想的な摺動
寸法を得ながら、ピストン１３のｘ、ｙ、ｚ軸方向の自
由度を確保しようとするものである。又、圧着スプリン
グ１５の側面に設けられたスリット１９により、ピスト
ン背面よりの球体１０．球座１４への給油を可能にする
。The fixture 17 is inserted into the inner surface 16 of the piston through the connecting rod 18 through the opening 2o, and is fixed to the inner surface of the piston by welding, gluing, etc., thereby maintaining the piston while obtaining ideal sliding dimensions. This is intended to ensure 13 degrees of freedom in the x, y, and z axis directions. Also, the slit 19 provided on the side surface of the compression spring 15 allows the sphere 10. It is possible to supply oil to the ball seat 14.
発明の効果
以上の様に、本発明は、クランク軸と、底面に球座を有
するピストンと、一端に前記ピストンの球座と連接する
球体を有し、他端にクランク軸と連接する環状の連接部
を有する連接棒と、前記ピストンの内側面に挿入され、
前記球体を前記球座に押え付ける圧着スプリングと、前
記圧着スプリングをピストンに固定する固定具をピスト
ンの内側面に固着したので、球体が、固定具によりピス
トンに固定された圧着スプリングのバネ力により常に球
座に押え付けられる事になり、弾性体を介在させなくて
も、遊びを生ずる事は無い。その為密閉型電動圧縮機で
問題となる騒音は低く、信頼性も高いものとなる。又圧
着スプリングは、バネ鋼等の安価で耐摩耗性の良い材料
が使用できる為低コストで、耐久性が高いものとなる。Effects of the Invention As described above, the present invention has a crankshaft, a piston having a spherical seat on the bottom surface, a spherical body connected to the spherical seat of the piston at one end, and an annular ring connected to the crankshaft at the other end. a connecting rod having a connecting portion; and a connecting rod inserted into the inner surface of the piston;
A compression spring that presses the sphere against the ball seat and a fixture that fixes the compression spring to the piston are fixed to the inner surface of the piston, so that the sphere is fixed to the piston by the spring force of the compression spring that is fixed to the piston by the fixture. It will always be pressed against the ball seat, and no play will occur even if no elastic body is used. Therefore, the noise that is a problem with hermetic electric compressors is low and reliability is high. Furthermore, the compression spring can be made of inexpensive and wear-resistant materials such as spring steel, resulting in low cost and high durability.
又、前記圧着スプリングと球体間に生ずるバネ力は、組
立時の固定具のピストン内側恒への挿入代により管理す
る事が出来、量産時に均一な押え力を得る事が出来る。Further, the spring force generated between the compression spring and the sphere can be controlled by the insertion distance of the fixture into the piston inner side during assembly, and a uniform pressing force can be obtained during mass production.
また、ピストン内面に係止溝を設けるものに比べて、組
立作業性にすぐれる利点がある。Furthermore, compared to a piston having a locking groove on the inner surface thereof, it has the advantage of being easier to assemble.
第１図は本発明の一実施例における圧縮機のピストン装
置の断面図、第２図は上記ピストン装置に用いる固定具
の斜視図、第３図は同じく圧着スプリングの斜視図、第
４図は従来の密閉型電動圧縮機の断面図、第５図は従来
のピストン装置の断面図である。
２・・・・・・クランク軸、１０・・・・・・球体、１
３・・・・・・ピストン、１４・・・・・・球座、１６
・・・・・・圧着スプリング、１ｅ・・・・・・ピスト
ン内側面、１７・・・・・・固定具、１８・・・・・・
連接棒、１８ａ・・・用達接部。
代理人の氏名 弁理士 中 尾 敏 男 はが１名第１
図 ９一連接棒
９ａ−一連換郁
第 ４ 図
第５図FIG. 1 is a sectional view of a piston device for a compressor according to an embodiment of the present invention, FIG. 2 is a perspective view of a fixture used in the piston device, FIG. 3 is a perspective view of a compression spring, and FIG. A sectional view of a conventional hermetic electric compressor, and FIG. 5 is a sectional view of a conventional piston device. 2... Crankshaft, 10... Sphere, 1
3... Piston, 14... Ball seat, 16
......Crimp spring, 1e...Piston inner surface, 17...Fixing tool, 18...
Connecting rod, 18a... service connection part. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 9 Series of connecting rods 9a - Series of exchanges Figure 4 Figure 5
Claims (1)
前記ピストンの球座と連接する球体を有し、他端に前記
クランク軸と連接する環状の連接部を有する連接棒と、
前記ピストンの内側面に挿入され、前記球体を前記球座
に押さえ付ける圧着スプリングと、、前記圧着スプリン
グを前記ピストンに固定する固定具をピストン内側面に
固着した事を特徴とする圧縮機のピストン装置。a crankshaft, a piston having a spherical seat on the bottom surface, a connecting rod having a spherical body connected to the spherical seat of the piston at one end and an annular connecting part connected to the crankshaft at the other end;
A compressor piston comprising: a pressure spring inserted into the inner surface of the piston to press the sphere against the spherical seat; and a fixture fixed to the inner surface of the piston to fix the pressure spring to the piston. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21229986A JPS6368781A (en) | 1986-09-09 | 1986-09-09 | Piston device for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21229986A JPS6368781A (en) | 1986-09-09 | 1986-09-09 | Piston device for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6368781A true JPS6368781A (en) | 1988-03-28 |
Family
ID=16620277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21229986A Pending JPS6368781A (en) | 1986-09-09 | 1986-09-09 | Piston device for compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6368781A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046840C (en) * | 1993-07-21 | 1999-12-01 | 住友化学工业株式会社 | Box having therein poison bait agent |
| JP2007300842A (en) * | 2006-05-10 | 2007-11-22 | Earth Chem Corp Ltd | Container for controlling insect pest |
| CN104632578A (en) * | 2013-11-06 | 2015-05-20 | 青岛海尔智能技术研发有限公司 | Piston positioning device of linear compressor |
-
1986
- 1986-09-09 JP JP21229986A patent/JPS6368781A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046840C (en) * | 1993-07-21 | 1999-12-01 | 住友化学工业株式会社 | Box having therein poison bait agent |
| JP2007300842A (en) * | 2006-05-10 | 2007-11-22 | Earth Chem Corp Ltd | Container for controlling insect pest |
| CN104632578A (en) * | 2013-11-06 | 2015-05-20 | 青岛海尔智能技术研发有限公司 | Piston positioning device of linear compressor |
| CN104632578B (en) * | 2013-11-06 | 2017-06-20 | 青岛海尔智能技术研发有限公司 | The piston positioning means of Linearkompressor |
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