JPH0275777A - Piston device assembly method for compressor - Google Patents

Piston device assembly method for compressor

Info

Publication number
JPH0275777A
JPH0275777A JP22720488A JP22720488A JPH0275777A JP H0275777 A JPH0275777 A JP H0275777A JP 22720488 A JP22720488 A JP 22720488A JP 22720488 A JP22720488 A JP 22720488A JP H0275777 A JPH0275777 A JP H0275777A
Authority
JP
Japan
Prior art keywords
connecting rod
cylindrical body
piston
compressor
crank pin
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
Application number
JP22720488A
Other languages
Japanese (ja)
Inventor
Kiyoshi Tanaka
清 田中
Ryuji Watanabe
隆二 渡辺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP22720488A priority Critical patent/JPH0275777A/en
Publication of JPH0275777A publication Critical patent/JPH0275777A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To simplify an assembly work by a method wherein a piston can be coupled to a crank pin through a simple work in which a spring member intended to be inserted in the pore of a connecting rod is inserted in the pore of the connecting rod as the spring member is engaged with a cylinder body engaged with a crank pin. CONSTITUTION:During assembly of a piston device, a crank shaft 5 is first inserted in a bearing part 8 of a motor case 6. Meanwhile, a piston 15 pivotally supported to a connecting rod 14 is inserted in a cylinder 9. In this case, a spring member 16 is mounted in a pore 19 of the connecting rod 14. After the end part of the connecting rod 14 is pressed in a hole 17 of a cylinder body 12 engaged with a crank pin 13, the spring member 16 is engaged with an engaging groove 18 of the cylinder body 12 to intercouple the connecting rod 14 and the cylinder body 12. This completes assembly of a piston device. In this case, the stroke of the piston is decided by means of the depth of a hole 17 of the cylinder body 12, and a top size is regulated through tuning of the insertion depth of the connecting rod 14.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は冷蔵庫や冷凍ショーケース等に使用される圧縮
機のピストン装置組立て方法に関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for assembling a piston device of a compressor used in refrigerators, freezer showcases, and the like.

(ロ)従来の技術 従来、この種の圧縮機、即ち、シリンダを一体形成した
モーターケースを備えた圧縮機のピストン装置は、例え
ば、特公昭51−21165号公報に開示されているよ
うに、クランクピンに嵌挿される円筒体の内径を該ピン
の外径より太き(形成しておき、モーターケースの所定
の位置にクランクピンをセットする一方、シリンダ内に
ピストンを挿入した状態で、ピストンに軸支された連接
棒を傾けて円筒体をクランクピンに遊嵌し、この後、円
筒体とクランクピンの間に円筒状のスペーサを充填して
構成されていた。
(B) Prior Art Conventionally, a piston device for this type of compressor, that is, a compressor equipped with a motor case in which a cylinder is integrally formed, has been disclosed, for example, in Japanese Patent Publication No. 51-21165. The inner diameter of the cylindrical body to be inserted into the crank pin is made larger than the outer diameter of the pin, and while the crank pin is set in a predetermined position in the motor case, with the piston inserted into the cylinder, The cylindrical body was loosely fitted onto the crank pin by tilting a connecting rod supported by the cylinder, and then a cylindrical spacer was filled between the cylindrical body and the crank pin.

(ハ)発明が解決しようとする課題 しかしながら、上記の構成によると円筒体とりランクピ
ンの接続に際しては円筒状のスペーサを必要とするため
、スペーサの分だけ円筒体を全周にわたって大きくする
か成るいはクランクピンを小径にしなければならず、圧
縮機が大型化したり、クランクピンの強度低下による変
形でガタが発生するという問題があった。
(c) Problems to be Solved by the Invention However, according to the above configuration, a cylindrical spacer is required when connecting the cylindrical body and the rank pin. The crank pin had to be made smaller in diameter, which led to problems such as an increase in the size of the compressor and deformation due to reduced strength of the crank pin, causing play.

また、このような問題が生じない構造として、例えば、
実公昭56−20548号公報等に開示されているよう
に円筒体を二つに分割する構造があるが、この場合には
ボルト等の結合となるため組立て作業が煩雑になるとい
う問題があった。
In addition, as a structure that does not cause such problems, for example,
As disclosed in Japanese Utility Model Publication No. 56-20548, there is a structure in which a cylindrical body is divided into two parts, but in this case, there is a problem that the assembly work is complicated because it requires bolts, etc. .

本発明は、かかる点に鑑みて為されたものであり、圧縮
機の大型化やクランクピンの強度低下を来招することな
くまた組立て作業性の良好な性能の良い圧縮機のピスト
ン装置組立て方法を提供することを目的とする。
The present invention has been made in view of the above points, and provides a method for assembling a piston device of a compressor with good performance and good assembly workability without increasing the size of the compressor or reducing the strength of the crank pin. The purpose is to provide

(ニ)課題を解決するための手段 本発明は、密閉ケース内に圧縮機部とこれを駆動する電
動機部を収納するとともに、これら両磯部をクランク軸
で連結してなり、且つ、前記電動機部に固定されたモー
ターケースに圧縮機部を構成するシリンダを一体形成す
る一方、このシリンダ内を往復動するピストンと、クラ
ンク軸のクランクピンを、該ピンに嵌挿された円筒体と
この円筒体に接続された連接棒で連結しているものにお
いて、前記円筒体と連接棒を分離構造として円筒体の一
側部に穴を他側部に係合溝を、また、連接棒の端部に細
孔をそれぞれ設け、前記連接棒を装着したピストンをシ
リンダ内に挿入し、1つ、円筒体をクランクピンに嵌挿
し、さらに、連接棒の端部を円筒体の穴に挿入した後、
その腹部を前記円筒体の係合溝に係合するとともに先端
部を前記連接棒の細孔に挿入されるバネ部材で、連接棒
と円筒体を連結したものである。
(d) Means for Solving the Problems The present invention is characterized in that a compressor section and an electric motor section for driving the compressor section are housed in a sealed case, and both these sections are connected by a crankshaft, and the electric motor section A cylinder constituting the compressor section is integrally formed with a motor case fixed to the motor case, and a piston that reciprocates within this cylinder and a crank pin of a crankshaft are connected to a cylindrical body fitted into the pin and this cylindrical body. In the case where the cylindrical body and the connecting rod are separated, a hole is formed on one side of the cylindrical body and an engagement groove is formed on the other side, and an engaging groove is formed on the other side of the cylindrical body, and an engaging groove is formed on the other side of the cylindrical body. After inserting the piston with the connecting rod into the cylinder, inserting the piston into the cylinder, inserting the cylinder into the crank pin, and inserting the end of the connecting rod into the hole in the cylinder,
The connecting rod and the cylindrical body are connected by a spring member whose abdomen is engaged with the engagement groove of the cylindrical body and whose tip end is inserted into the pore of the connecting rod.

(ホ)作用 本発明の圧縮機のピストン装置組立て方法は、バネ部材
を円筒体の係合溝に係合させつつ連接棒の細孔に挿入す
るという簡単な作業でピストンとクランクピンを連結す
ることができ、組立て作業を簡略できるばかりでなく、
円筒体をなるべく小さくまたクランクピンをなるべく大
径に形成することが可能となり圧縮機の小型化やガタの
低減が実現できるものである。また、斯る方法によれば
連接棒の細孔の位置や円筒体の穴への挿入深さを適宜変
えればストロークを容易に変更することができ、異種容
量の圧縮機にも対応できる。
(E) Function The method for assembling a piston device for a compressor of the present invention connects the piston and crank pin by a simple operation of engaging the spring member with the engagement groove of the cylindrical body and inserting it into the pore of the connecting rod. This not only simplifies the assembly work, but also
It is possible to make the cylindrical body as small as possible and to make the crank pin as large in diameter as possible, making it possible to downsize the compressor and reduce backlash. Moreover, according to this method, by appropriately changing the position of the connecting rod's pore and the depth of insertion into the hole of the cylindrical body, the stroke can be easily changed, and it is possible to correspond to compressors of different capacities.

(へ)実施例 以下、本発明の実施例を図面に基ずいて説明する。(f) Example Embodiments of the present invention will be described below with reference to the drawings.

1は密閉ケース2内に圧縮機部3とこれを駆動する電動
機部4を収納するとともに、これら両機部3.4をクラ
ンク軸5で連結してなる密閉型圧縮機である。6は前記
電動機部4に固定されたモーターケースである。このモ
ーターケースは電動機部4への取付脚7とクランク軸5
の軸受部8とシリンダ9を一体形成している。10は圧
縮機部3を構成するピストン装置であり、一端に球体1
1を他端にバネ部材16で固定された円筒体12を有し
クランク軸5のクランクピン13に嵌挿された連接棒1
4と、前記球体11にボールジヨイント方式により接続
されシリンダ内を往復動するピストン15とから構成さ
れている。ここで、円筒体12の一側部には穴17が他
側部には係合溝18が、また、連接棒14の端部には細
孔19がそれぞれ設けられている。20はクランク軸5
に形成されたバランサーであり下面にスラスト軸受面を
有する。
Reference numeral 1 designates a hermetic compressor in which a compressor section 3 and an electric motor section 4 for driving the compressor section 3 are housed in a closed case 2, and these both sections 3.4 are connected by a crankshaft 5. Reference numeral 6 denotes a motor case fixed to the electric motor section 4. This motor case has a mounting leg 7 to the electric motor section 4 and a crankshaft 5.
The bearing portion 8 and cylinder 9 are integrally formed. 10 is a piston device constituting the compressor section 3, which has a sphere 1 at one end.
A connecting rod 1 has a cylindrical body 12 fixed to the other end by a spring member 16 and is fitted into a crank pin 13 of a crankshaft 5.
4, and a piston 15 that is connected to the sphere 11 by a ball joint system and reciprocates within the cylinder. Here, a hole 17 is provided on one side of the cylindrical body 12, an engagement groove 18 is provided on the other side, and a small hole 19 is provided on the end of the connecting rod 14. 20 is the crankshaft 5
It is a balancer formed in the shape of a shaft and has a thrust bearing surface on the lower surface.

次にピストン装置の組立て方法を説明する。Next, a method for assembling the piston device will be explained.

まず、第4図に示すようにモーターケース6の軸受部8
にクランク軸5を挿入する。一方、連接棒14を軸支し
たピストン15をシリンダ9内に挿入する。この時、連
接棒14の細孔19にはバネ部材16を装着しておく。
First, as shown in FIG.
Insert the crankshaft 5 into the On the other hand, the piston 15 with the connecting rod 14 pivotally supported is inserted into the cylinder 9. At this time, the spring member 16 is attached to the small hole 19 of the connecting rod 14.

そして、第5図に示すように連接棒14の端部を円筒体
12の穴17に圧入した後、バネ部材16を円筒体12
の係合溝18に嵌め込むことにより連接棒14と円筒体
12を結合する。これによりピストン装置は組み立てら
れる。ここで、ピストンのストロークは円筒体12の穴
17の深さで決定され、また、トップ寸法の調節は連接
棒14の挿入深さを微調整することによりおこなわれる
。なお、大幅な容量変更が必要な時は、あらかじめ連接
棒14の細孔を複数個設けておくと便利である。
After the end of the connecting rod 14 is press-fitted into the hole 17 of the cylindrical body 12 as shown in FIG.
The connecting rod 14 and the cylindrical body 12 are connected by fitting into the engaging groove 18 of the connecting rod 14 and the cylindrical body 12. The piston device is thus assembled. Here, the stroke of the piston is determined by the depth of the hole 17 in the cylindrical body 12, and the top dimension is adjusted by finely adjusting the insertion depth of the connecting rod 14. Incidentally, when a large capacity change is required, it is convenient to provide a plurality of pores in the connecting rod 14 in advance.

このようなピストン装置の組立て方法は、バネ部材16
の先端を連接棒14の細孔19に挿入しつつ(本実施例
では予め挿入しておく)、腹部を円筒体12の係合溝1
8に係合させるという簡単な作業でピストン15とクラ
ンクピン13を連結することができ、組立て作業を簡略
できるだけでなく、シリンダ9を一体形成したモーター
ケース6であっても従来のスペーサ等を必要としないの
で、円筒体12をなるべく小さくまたクランクピン13
をなるべく大径に形成することが可能となり圧縮機の小
型軽量化やガタの低減が実現できるものである。また、
斯る方法によれば連接棒14の細孔19の位置や円筒体
12の穴17への挿入深さを適宜変えるだけでピストン
15のストロークを変更できるので、異種容量の圧縮機
にも容易に対処できる。
A method for assembling such a piston device is to assemble the spring member 16.
While inserting the tip of the connecting rod into the small hole 19 of the connecting rod 14 (in this embodiment, it is inserted in advance), the abdomen is inserted into the engagement groove 1 of the cylindrical body 12.
The piston 15 and crank pin 13 can be connected by the simple operation of engaging the piston 15 with the cylinder 9, which not only simplifies the assembly work but also requires conventional spacers etc. even if the motor case 6 is integrally formed with the cylinder 9. Therefore, the cylindrical body 12 is made as small as possible and the crank pin 13 is made as small as possible.
This allows the compressor to be made as large in diameter as possible, making it possible to reduce the size and weight of the compressor and reduce backlash. Also,
According to this method, the stroke of the piston 15 can be changed simply by appropriately changing the position of the fine hole 19 of the connecting rod 14 and the insertion depth into the hole 17 of the cylindrical body 12, so that it can be easily applied to compressors of different capacities. I can handle it.

(ト)発明の効果 以上のように本発明の圧縮機のピストン装置組立て方法
によれば、シリンダを一体に有するモーターケースであ
っても従来のようにスペーサを使うことなく組立てるこ
とができるため、組立て作業性を簡略できるとともに、
クランクピンを大径に円筒体を小さく形成してクランク
ピンの強度低下によるガタつきやピストン装置の大型化
を防止して性能の良い圧縮機を提供できる。また、異種
容量の圧縮機にも容易に対処できる。
(G) Effects of the Invention As described above, according to the compressor piston device assembly method of the present invention, even a motor case having an integral cylinder can be assembled without using a spacer as in the conventional case. In addition to simplifying assembly work,
By forming the crank pin with a large diameter and a small cylindrical body, a compressor with good performance can be provided by preventing rattling due to reduced strength of the crank pin and increasing the size of the piston device. In addition, compressors with different capacities can be easily handled.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例を示す密閉型圧縮機の縦断面図
、第2図はピストン装置の縦断面図、第3図は同じくピ
ストン装置の要部横断面図、第4図及び第5図はピスト
ン装置の組立て方法を示す分解断面図である。 5・・・クランク軸、6・・・モーターケース、9・・
・シリンダ、12・・・円筒体、13・・・クランクピ
ン、14・・・連接棒、15・・・ピストン、16・・
・バネ部材、17・・・穴、18・・・係合溝、19・
・・細孔。 第11( 第2図 第3図
FIG. 1 is a vertical cross-sectional view of a hermetic compressor showing an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of a piston device, FIG. 3 is a cross-sectional view of the main part of the piston device, FIG. 5 is an exploded sectional view showing a method of assembling the piston device. 5... Crankshaft, 6... Motor case, 9...
・Cylinder, 12... Cylindrical body, 13... Crank pin, 14... Connecting rod, 15... Piston, 16...
・Spring member, 17... Hole, 18... Engagement groove, 19.
··pore. 11 (Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 1、密閉ケース内に圧縮機部とこれを駆動する電動機部
を収納するとともに、これら両機部をクランク軸で連結
してなり、且つ、前記電動機部に固定されたモーターケ
ースに圧縮機部を構成するシリンダを一体形成する一方
、このシリンダ内を往復動するピストンと、クランク軸
のクランクピンを、該ピンに嵌挿された円筒体とこの円
筒体に接続された連接棒で連結しているものにおいて、
前記円筒体と連接棒を分離構造として円筒体の一側部に
穴を他側部に係合溝を、また、連接棒の端部に細孔をそ
れぞれ設け、前記連接棒を装着したピストンをシリンダ
内に挿入し、且つ、円筒体をクランクピンに嵌挿し、さ
らに、連接棒の端部を円筒体の穴に挿入した後、その腹
部を前記円筒体の係合溝に係合するとともに先端部を前
記連接棒の細孔に挿入されるバネ部材で、連接棒と円筒
体を連結したことを特徴とする圧縮機のピストン装置組
立て方法。
1. A compressor unit and an electric motor unit that drives the compressor unit are housed in a sealed case, and these two units are connected by a crankshaft, and the compressor unit is configured in a motor case fixed to the electric motor unit. A piston that reciprocates within this cylinder and a crank pin of a crankshaft are connected by a cylindrical body fitted into the pin and a connecting rod connected to this cylindrical body. In,
The cylindrical body and the connecting rod are separated, a hole is provided on one side of the cylindrical body, an engagement groove is provided on the other side, and a small hole is provided at the end of the connecting rod, and the piston with the connecting rod attached thereto is provided. After inserting the connecting rod into the cylinder and fitting the cylindrical body into the crank pin, and further inserting the end of the connecting rod into the hole of the cylindrical body, the abdomen is engaged with the engagement groove of the cylindrical body, and the tip of the connecting rod is inserted into the cylinder. A method for assembling a piston device for a compressor, characterized in that a connecting rod and a cylindrical body are connected by a spring member whose portion is inserted into a pore of the connecting rod.
JP22720488A 1988-09-09 1988-09-09 Piston device assembly method for compressor Pending JPH0275777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22720488A JPH0275777A (en) 1988-09-09 1988-09-09 Piston device assembly method for compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22720488A JPH0275777A (en) 1988-09-09 1988-09-09 Piston device assembly method for compressor

Publications (1)

Publication Number Publication Date
JPH0275777A true JPH0275777A (en) 1990-03-15

Family

ID=16857127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22720488A Pending JPH0275777A (en) 1988-09-09 1988-09-09 Piston device assembly method for compressor

Country Status (1)

Country Link
JP (1) JPH0275777A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100412581B1 (en) * 2002-01-30 2003-12-31 삼성광주전자 주식회사 Connecting-rod apparatus for Hermetic compressor
KR100412575B1 (en) * 2002-01-23 2003-12-31 삼성광주전자 주식회사 Connecting-rod apparatus for Hermetic compressor
KR100426085B1 (en) * 2001-10-25 2004-04-06 삼성광주전자 주식회사 Connecting-rod apparatus for Hermetic compressor
KR100621045B1 (en) * 2005-01-31 2006-09-14 엘지전자 주식회사 A Connectingrod For Hermatic Compressor
KR100659371B1 (en) * 2005-03-08 2006-12-19 가부시키가이샤 덴소 Screen printing machine and screen printing method using the same
KR20150140691A (en) * 2013-03-15 2015-12-16 인테그레이티드 디자인즈, 엘.피. Comprehensive pump system and method having a quick change motor drive, automated gas removal and fluid recovery system and remote monitoring, viewing and control thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100426085B1 (en) * 2001-10-25 2004-04-06 삼성광주전자 주식회사 Connecting-rod apparatus for Hermetic compressor
KR100412575B1 (en) * 2002-01-23 2003-12-31 삼성광주전자 주식회사 Connecting-rod apparatus for Hermetic compressor
KR100412581B1 (en) * 2002-01-30 2003-12-31 삼성광주전자 주식회사 Connecting-rod apparatus for Hermetic compressor
KR100621045B1 (en) * 2005-01-31 2006-09-14 엘지전자 주식회사 A Connectingrod For Hermatic Compressor
KR100659371B1 (en) * 2005-03-08 2006-12-19 가부시키가이샤 덴소 Screen printing machine and screen printing method using the same
KR20150140691A (en) * 2013-03-15 2015-12-16 인테그레이티드 디자인즈, 엘.피. Comprehensive pump system and method having a quick change motor drive, automated gas removal and fluid recovery system and remote monitoring, viewing and control thereof

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