JPH0571528A - Transmission mechanism using a ball joint and compressor using the same - Google Patents
Transmission mechanism using a ball joint and compressor using the sameInfo
- Publication number
- JPH0571528A JPH0571528A JP3232953A JP23295391A JPH0571528A JP H0571528 A JPH0571528 A JP H0571528A JP 3232953 A JP3232953 A JP 3232953A JP 23295391 A JP23295391 A JP 23295391A JP H0571528 A JPH0571528 A JP H0571528A
- Authority
- JP
- Japan
- Prior art keywords
- ball joint
- connecting rod
- transmission mechanism
- spherical bearing
- coating
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims description 11
- 239000007787 solid Substances 0.000 claims abstract description 30
- 239000003507 refrigerant Substances 0.000 claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000000576 coating method Methods 0.000 claims description 22
- 239000010410 layer Substances 0.000 claims description 8
- 238000007747 plating Methods 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 5
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 229910021364 Al-Si alloy Inorganic materials 0.000 claims description 2
- 230000005489 elastic deformation Effects 0.000 claims description 2
- CPSYWNLKRDURMG-UHFFFAOYSA-L hydron;manganese(2+);phosphate Chemical compound [Mn+2].OP([O-])([O-])=O CPSYWNLKRDURMG-UHFFFAOYSA-L 0.000 claims description 2
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 claims description 2
- 229910000165 zinc phosphate Inorganic materials 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000011241 protective layer Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 239000002184 metal Substances 0.000 abstract description 17
- 239000000314 lubricant Substances 0.000 abstract description 12
- 230000002159 abnormal effect Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 239000010953 base metal Substances 0.000 abstract 1
- 238000005461 lubrication Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0628—Construction or details of the socket member with linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/0856—Sulfides
- F05C2203/086—Sulfides of molybdenum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Pivots And Pivotal Connections (AREA)
- Chemically Coating (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
(57)【要約】
【目的】本発明は、片斜板圧縮機、とくに自動車空調用
片斜板圧縮機に係り、過少冷媒運転時におけるボールジ
ョイント部のかじり、及び異常摩耗を防止する。
【構成】本発明は、コンロッドの球部，コンロッドの球
部を保持するボールジョイント内面、及び前記コンロッ
ドの球部と前記ボールジョイント内面のいずれか、或い
は両方に形成した耐摩耗機能を有する固体潤滑皮膜で構
成される。
【効果】本発明によれば、潤滑油の供給が困難になる過
少冷媒運転時でも、固体潤滑皮膜が存在するため、前記
摺動界面のかじりを防ぐことができる。さらに、前記固
体潤滑皮膜が摩耗しても、前記固体潤滑皮膜に持たせて
いる耐摩耗機能が必要最少限の固体潤滑剤を保持するた
め、前記摺動界面のかじりを防ぐと同時に、母材である
ボールジョイント内面とコンロッドの球部の金属接触、
及び金属接触に起因する異常摩耗を防ぐことができる。
(57) [Summary] [PROBLEMS] The present invention relates to a swash plate compressor, and more particularly to an automobile air conditioning swash plate compressor, and prevents galling and abnormal wear of a ball joint portion during an operation with a small amount of refrigerant. According to the present invention, there is provided a solid lubricant having a wear resistance function formed on a ball portion of a connecting rod, a ball joint inner surface for holding the ball portion of a connecting rod, and a ball portion of the connecting rod and an inner surface of the ball joint, or both. Composed of a film. [Effects] According to the present invention, even during the operation of an excessively small amount of refrigerant, which makes it difficult to supply the lubricating oil, the solid lubricating film exists, so that the galling of the sliding interface can be prevented. Further, even when the solid lubricating film is worn, the solid lubricating film retains a minimum amount of solid lubricant required for the wear resistance function, so that galling of the sliding interface is prevented and at the same time, the base metal is prevented. Metal contact between the inner surface of the ball joint and the sphere of the connecting rod,
And abnormal wear resulting from metal contact can be prevented.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ボールジョイントを有
する伝動機構に係り、特に境界潤滑下におけるボールジ
ョイントのかじり，異常摩耗を防止するのに好適な構造
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission mechanism having a ball joint, and more particularly to a structure suitable for preventing galling and abnormal wear of the ball joint under boundary lubrication.
【０００２】[0002]
【従来の技術】例えば、特公昭61−47986 号公報等に示
されるように従来の片斜板圧縮機のボールジョイントに
おいては、境界潤滑下におけるボールジョイントのかじ
り、及び異常摩耗を防止するため、ボールジョイント内
面に硬質粒子を埋込むなどして、耐摩摩機能を持たせて
いた。しかし、過少冷媒運転等でボールジョイント摺動
界面の潤滑油が失われる場合、前記ボールジョイント内
面とコンロッドの球面が直接金属接触し、かじり、及び
異常摩耗を生じる可能性があった。また、特開昭63−14
0106号等に示されるよう、コンロッドの球部を保持する
ボールジョイント受け部を、潤滑性を有する別部材で形
成するものもあるが、製造工程が増すという欠点を有し
ていた。2. Description of the Related Art For example, in a ball joint of a conventional swash plate compressor as disclosed in Japanese Patent Publication No. 61-47986, in order to prevent galling and abnormal wear of the ball joint under boundary lubrication, Hard particles were embedded on the inner surface of the ball joint to provide abrasion resistance. However, when the lubricating oil at the sliding interface of the ball joint is lost due to the operation with an excessive amount of refrigerant, the inner surface of the ball joint and the spherical surface of the connecting rod may come into direct metal contact with each other, causing galling and abnormal wear. In addition, JP-A-63-14
As shown in Japanese Patent No. 0106, etc., there is one in which the ball joint receiving portion for holding the spherical portion of the connecting rod is formed by another member having lubricity, but it has a drawback that the number of manufacturing steps is increased.
【０００３】[0003]
【発明が解決しようとする課題】上記従来技術において
は、ボールジョイント内面に固体潤滑機能を持たない、
あるいは、固体潤滑機能を有していても、特別な耐摩耗
機能を持たないことから、ボールジョイントに固体潤滑
剤の結合強度を越える高荷重が加わる場合や、結合剤の
機能が低下し固体潤滑剤が過度に消耗する場合、固体潤
滑皮膜が失われることでコンロッドの球面とボールジョ
イント内面は直接金属接触する可能性が増大する。した
がって、過少冷媒運転等、ボールジョイント部の油膜形
成が厳しい運転条件では、コンロッドの球面とボールジ
ョイント内面が金属接触し、摺動界面のかじりや異常摩
耗が発生するという問題があった。In the above prior art, the inner surface of the ball joint has no solid lubricating function,
Alternatively, even if it has a solid lubrication function, it does not have a special wear resistance function, so when a high load exceeding the bond strength of the solid lubricant is applied to the ball joint, or the function of the binder deteriorates When the agent is excessively consumed, the possibility of direct metal contact between the spherical surface of the connecting rod and the inner surface of the ball joint increases due to the loss of the solid lubricant film. Therefore, under an operating condition where the oil film formation in the ball joint portion is severe, such as an operation with an excessive amount of refrigerant, there is a problem that the spherical surface of the connecting rod and the inner surface of the ball joint are brought into metal contact with each other, causing galling of the sliding interface and abnormal wear.
【０００４】本発明の目的は、過少冷媒運転等，ボール
ジョイント部の油膜形成が厳しい運転条件でも、ボール
ジョイント摺動界面のかじり、異常摩耗を防止すること
にある。An object of the present invention is to prevent galling and abnormal wear of a sliding interface of a ball joint even under operating conditions in which an oil film is formed in the ball joint portion severely, such as operation with a small amount of refrigerant.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、コンロッドの球部、或いはコンロッドの球部を保持
するボールジョイント内面、或いはその両方に耐摩耗機
能を有する固体潤滑皮膜を形成した。ここで、固体潤滑
皮膜を固体潤滑剤のコーティングで形成する場合の耐摩
耗機能は、コーティングの下地として硬質の皮膜（例え
ばアルマイト皮膜）を設けることで達成させた。また、
固体潤滑皮膜を金属めっきに潤滑性を持った分散剤を分
散させた複合金属めっきで形成する場合は、めっき金属
のマトリックス自体が耐摩耗機能を有することになる。In order to achieve the above object, a solid lubricating coating having a wear-resistant function is formed on the ball portion of the connecting rod, the inner surface of the ball joint holding the ball portion of the connecting rod, or both. Here, the wear resistance function in the case of forming the solid lubricating film by coating with the solid lubricant was achieved by providing a hard film (for example, an alumite film) as a base of the coating. Also,
When the solid lubricating film is formed by composite metal plating in which a dispersant having lubricity is dispersed in metal plating, the matrix of plated metal itself has an abrasion resistance function.
【０００６】[0006]
【作用】コンロッドの球部、或いはコンロッドの球部を
保持するボールジョイント内面、或いはその両方の固体
潤滑皮膜に持たせている耐摩耗機能は、過少冷媒運転な
どの潤滑上過酷な運転条件下でも、ある程度の固体潤滑
剤を保持すると同時に、直接コンロッドの球面とボール
ジョイント内面が接触するのを防ぐ。即ち、前記固体潤
滑皮膜を固体潤滑剤のコーティングで形成する場合は、
下地として設けた硬質の皮膜のポーラス或いは表面の凹
部に、前記固体潤滑剤が保持され、摺動界面の焼き付き
を防ぐと同時に、硬質の前記下地が、母材であるボール
ジョイント内面とコンロッドの金属接触、及び金属接触
に起因する異常摩耗を防ぐ。また、固体潤滑皮膜を前記
複合金属めっきで形成する場合は、めっきのマトリック
ス自体が固体潤滑性を持たせた分散剤を保持すること
で、摺動界面の焼き付きを防ぐと同時に、ボールジョイ
ント内面とコンロッドの直接の金属接触、及び金属接触
に起因する異常摩耗を防ぐ。[Function] The wear-resistant function of the solid lubricant film on the sphere of the connecting rod, the inner surface of the ball joint that holds the sphere of the connecting rod, or both of them is effective even under severe operating conditions such as low refrigerant operation due to lubrication. While holding a certain amount of solid lubricant, it prevents direct contact between the spherical surface of the connecting rod and the inner surface of the ball joint. That is, when the solid lubricant film is formed by coating a solid lubricant,
The solid lubricant is retained in the porous or surface recess of the hard coating provided as a base to prevent seizure of the sliding interface, and at the same time, the hard base is a metal of the base ball joint inner surface and the connecting rod. Prevents contact and abnormal wear due to metal contact. When the solid lubricating film is formed by the composite metal plating, the plating matrix itself holds a dispersant having solid lubricity to prevent seizure of the sliding interface and to prevent the internal surface of the ball joint from being seized. Prevents direct metal contact of the connecting rod and abnormal wear caused by metal contact.
【０００７】[0007]
【実施例】以下、本発明を自動車空調用片斜板圧縮機に
適用した実施例について、図１，図２及び図３を用いて
説明する。外部から入力を得て回転するシャフト１に
は、シャフト１の軸線に対し傾斜角をもって斜板２が保
持されている。前記斜板２には、スラスト軸受３及びボ
ール軸受４を介して、前記シャフト１の回転方向に対す
る回り止め機構５を有するピストンサポート６が保持さ
れ、前記ピストンサポート６の円周上、及びピストン７
の端面で、コンロッド８の両端に設けられた球部８ａを
保持することによりボールジョイント９を形成してい
る。ここで、前記コンロッド８の球部８ａには、焼れを
施した軸受鋼、或いは浸炭焼入れを施した肌焼鋼等を用
い、表面硬さＨｖ７００以上、最大面粗さ１.５μｍ 以
下を確保している。また、前記コンロッド８の球部８ａ
を保持するボールジョイント内面９ｂには、下地として
生成させた１〜３μｍのアルマイト皮膜９ｃの上に、樹
脂を結合剤として混合させたＭｏＳ2 を主成分とするパ
ウダーをコーティングすることで、５〜１０μｍの固体
潤滑皮膜９ｄを形成している。また、前記ボールジョイ
ント内面９ｂの一部には、潤滑油を保持するための空間
９ｅが設けられている。ここで、前記ボールジョイント
９は、Ａｌ−Ｓｉ合金製の前記ピストンサポート６と一
体成型された円筒状壁面を、前記コンロッド８の球部８
ａを囲むごとくかしめることで形成している。前記円筒
状壁面かしめ部の、径方向の弾性変形量ｅは、前記コー
ティング層が摩耗してもボールジョイント部にガタが発
生しないよう、前記コーティング層の厚さの２倍に設定
している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment in which the present invention is applied to a one-sided swash plate compressor for automobile air conditioning will be described below with reference to FIGS. 1, 2 and 3. A swash plate 2 is held on the shaft 1 that rotates by receiving an input from the outside, with an inclination angle with respect to the axis of the shaft 1. The swash plate 2 holds a piston support 6 having a rotation stop mechanism 5 with respect to the rotation direction of the shaft 1 via a thrust bearing 3 and a ball bearing 4, and on the circumference of the piston support 6 and the piston 7.
The ball joint 9 is formed by holding the spheres 8a provided at both ends of the connecting rod 8 at the end surface of the. Here, the ball portion 8a of the connecting rod 8 is made of burned bearing steel or carburized and case-hardened steel to ensure a surface hardness Hv of 700 or more and a maximum surface roughness of 1.5 μm or less. is doing. In addition, the spherical portion 8a of the connecting rod 8
On the inner surface 9b of the ball joint that holds, by coating a powder mainly composed of MoS 2 mixed with a resin as a binder on the alumite coating 9c of 1 to 3 μm formed as a base, A solid lubricating film 9d having a thickness of 10 μm is formed. A space 9e for holding the lubricating oil is provided in a part of the inner surface 9b of the ball joint. Here, the ball joint 9 has a cylindrical wall surface integrally formed with the piston support 6 made of an Al—Si alloy, and a spherical portion 8 of the connecting rod 8.
It is formed by crimping around a. The elastic deformation amount e in the radial direction of the caulking portion of the cylindrical wall is set to twice the thickness of the coating layer so that the ball joint portion does not rattle even if the coating layer is worn.
【０００８】ここで、前記固体潤滑皮膜９ｄの一部（下
地）を形成するアルマイト皮膜は、硬質の金属めっき
（例えば、Ｎｉ，Ｃｒめっき、あるいはそれらにＰ，Ｂ
Ｎなどを分散させた複合めっき、あるいはＢＮ，ＴｉＮ
を母材にイオン注入するなどして生成させた表面硬化層
あるいは、リン酸亜鉛又はリン酸マンガン皮膜）でも代
用できる。また、前記アルマイト皮膜９ｃの上に形成す
る固体潤滑皮膜は、PTFEを主成分とするフッ素系樹脂
や、グラファイトでも代用できる。さらに、かしめ前に
前記アルマイト皮膜９ｃの上にＭoＳ2を主成分とするグ
リースを塗布することでも代用できる。Here, the alumite coating forming a part (base) of the solid lubricating coating 9d is a hard metal plating (for example, Ni, Cr plating, or P, B on them).
Composite plating with dispersed N, BN, TiN
Alternatively, a surface-hardened layer formed by ion-implanting the base material or a zinc phosphate or manganese phosphate coating) can be used instead. Further, the solid lubricating film formed on the alumite film 9c may be replaced with a fluorine resin containing PTFE as a main component or graphite. Further, it is also possible to apply a grease containing MoS 2 as a main component on the alumite coating 9c before caulking.
【０００９】次に、動作について説明する。前記シャフ
ト１が回転すると、シャフト１に固定された前記斜板２
は揺動回転運動を行い、前記回り止め機構５を有する前
記ピストンサポート６には揺動運動のみが発生する。前
記ピストンサポート６が揺動運動することで、前記コン
ロッド８を介して前記ピストン７に往復運動が伝えら
れ、冷媒の吸入圧縮，吐出が行われる。ここで、前記ボ
ールジョイント９の摺動界面(前記コンロッド８の球部
８ａと、前記ボールジョイント内面９ｂの接触面)は、
潤滑油の供給が困難になる過少冷媒運転時でも、前記固
体潤滑膜が存在するため、摺動界面のかじりを防ぐこと
ができる。さらに、前記摺動界面の潤滑条件が厳しい運
転が頻繁になると、前記固体潤滑剤のコーティング層が
失われるが、下地として設けられた前記アルマイト皮膜
９ｃのポーラス、或いは表面の凹部に前記固体潤滑剤が
保持され、前記摺動界面のかじりを防ぐと同時に、硬質
の下地（前記アルマイト皮膜９ｃ）が、母材であるボー
ルジョイント内面９ｂとコンロッド８の球部８ａの金属
接触、及び金属接触に起因する異常摩耗を防ぐことがで
きる。Next, the operation will be described. When the shaft 1 rotates, the swash plate 2 fixed to the shaft 1
Performs an oscillating rotary motion, and only the oscillating motion is generated in the piston support 6 having the detent mechanism 5. When the piston support 6 oscillates, reciprocating motion is transmitted to the piston 7 through the connecting rod 8, and the refrigerant is sucked, compressed, and discharged. Here, the sliding interface of the ball joint 9 (the contact surface between the spherical portion 8a of the connecting rod 8 and the inner surface 9b of the ball joint) is
Since the solid lubricating film is present even during the operation of an excessively small amount of refrigerant, which makes it difficult to supply the lubricating oil, it is possible to prevent galling of the sliding interface. Further, when the lubrication condition of the sliding interface is frequently operated, the coating layer of the solid lubricant is lost. However, the solid lubricant is formed in the porous layer of the alumite coating 9c provided as a base or in the concave portion of the surface. Is retained, and at the same time the galling of the sliding interface is prevented, the hard base (the alumite coating 9c) is caused by the metal contact between the ball joint inner surface 9b which is the base material and the ball portion 8a of the connecting rod 8, and the metal contact. It is possible to prevent abnormal wear.
【００１０】また、従来から用いられているＣＦＣ−１
２のように、分子中に塩素を含む冷媒を用いる場合は、
金属の摩擦界面に極圧作用を持つ塩化物が形成されるた
め、ある程度の摺動性を確保することができるが、ＨＦ
Ｃ−１３４ａのように、分子中に塩素を含まない冷媒を
用いる場合、摺動界面に極圧作用を持つ物質を介在させ
なければ、摺動性は著しく低下する。従って、本発明は
ＨＦＣ−１３４ａのように、分子中に塩素を含まない冷
媒を用いる場合の過少冷媒耐久性を向上させるのに、特
に有効である。Further, CFC-1 which has been conventionally used
When using a refrigerant containing chlorine in the molecule as in 2,
Since chloride having an extreme pressure action is formed at the frictional interface of the metal, it is possible to secure a certain degree of slidability.
When a refrigerant containing no chlorine in the molecule is used like C-134a, the slidability is remarkably reduced unless a substance having an extreme pressure action is interposed at the sliding interface. Therefore, the present invention is particularly effective in improving the durability of the under-refrigerant when using a refrigerant containing no chlorine in the molecule such as HFC-134a.
【００１１】本実施例の効果は、図４、及び表１を用い
て説明する。効果の確認には、従来の冷媒（例えばＣＦ
Ｃ−１２）に比べ、分子中に塩素を含まない分、無潤
滑、及び境界潤滑での摺動性に劣るＨＦＣ−１３４ａを
用いた。図４は、過少冷媒試験における運転時間と、ボ
ールジョイントのガタ量の関係を示すが、従来例のよう
にボールジョイント内面が未処理、或いはＭｏＳ2 コー
ティングのみの場合に、かじりが発生していた時間（６
０ｈ前後）でも、本実施例を適用することで、かじりが
発生しないばかりではなく、前記ガタもほとんど発生し
ないことがわかる。表１は、境界潤滑運転における耐か
じり性を、従来例と本実施例で比較したものである。The effects of this embodiment will be described with reference to FIG. 4 and Table 1. To confirm the effect, a conventional refrigerant (for example, CF
Compared to C-12), HFC-134a was used, which does not contain chlorine in the molecule, is inferior in lubricity without lubrication and boundary lubrication. FIG. 4 shows the relationship between the operating time and the amount of backlash of the ball joint in the under-refrigerant test. As in the conventional example, when the inner surface of the ball joint was untreated or only with MoS 2 coating, galling occurred. Time (6
It can be seen that, even if it is about 0 h), by applying the present embodiment, not only the galling does not occur but also the backlash hardly occurs. Table 1 compares the galling resistance in the boundary lubrication operation between the conventional example and this example.
【００１２】[0012]
【表１】 [Table 1]
【００１３】従来例では、早いものでは５分，２時間完
走したものでもボールジョイントには、かじりが発生し
たが、本実施例では、２時間完走したものでも、ボール
ジョイントにガタが発生することはなかった。以上のこ
とから、本実施例が、特に潤滑が厳しい運転条件で、ボ
ールジョイントの摺動性改善に有効であることがわか
る。In the conventional example, even if the ball is fast, the ball joint has galling even if it is completed for 5 minutes and 2 hours, but in this embodiment, the ball joint is loose even if it is completed for 2 hours. There was no. From the above, it can be seen that the present embodiment is effective in improving the slidability of the ball joint, especially under operating conditions where lubrication is severe.
【００１４】[0014]
【発明の効果】以上説明した様に本発明によれば、長時
間運転してもかじりが発生せず、またガタもほとんど発
生しないボールジョイント部を形成できた。As described above, according to the present invention, it is possible to form a ball joint portion which is free from galling even after being operated for a long time and has substantially no rattling.
【００１５】更に、塩素を含まない冷媒中にさらされて
も摺動性の良い圧縮機を得ることができた。Furthermore, it was possible to obtain a compressor having good slidability even when exposed to a chlorine-free refrigerant.
【図１】本発明の一実施例を示すボールジョイントの構
造図である。FIG. 1 is a structural diagram of a ball joint showing an embodiment of the present invention.
【図２】本発明の一実施例を示すボールジョイントのか
しめ方法説明図である。FIG. 2 is an explanatory diagram of a caulking method of a ball joint showing an embodiment of the present invention.
【図３】本発明の一実施例を示す片斜板圧縮機の縦断面
図である。FIG. 3 is a vertical sectional view of a swash plate compressor according to an embodiment of the present invention.
【図４】本発明の効果を示す、過少冷媒運転時間とボー
ルジョイント部のガタ量の関係図である。FIG. 4 is a diagram showing a relationship between an excessive refrigerant operation time and a play amount of a ball joint portion, showing an effect of the present invention.
６…ピストンサポート、８…コンロッド、９…ボールジ
ョイント。6 ... Piston support, 8 ... Connecting rod, 9 ... Ball joint.
Claims (11)
た球部を保持することによりボールジョイントを形成
し、前記コンロッドの球部、或いは前記コンロッドの球
部を保持するボールジョイント内面、或いはその両方
に、膜厚５μｍ以下の耐摩耗機能下地を有する膜厚１０
μｍ以下の固体潤滑皮膜を形成したことを特徴とする伝
動機構。1. A ball joint is formed by holding a ball portion provided at one end or both ends of a connecting rod, and the ball portion of the connecting rod, the inner surface of the ball joint holding the ball portion of the connecting rod, or both of them. And a film thickness of 10 with an abrasion-resistant functional base having a film thickness of 5 μm or less
A transmission mechanism characterized by forming a solid lubricating film of μm or less.
として形成したアルマイト層の上層に、樹脂を結合剤と
して混合させたＭｏＳ2 を主成分とするコーティングで
あることを特徴とする請求項１の伝動機構。2. The solid lubricating film has an abrasion resistance function (base).
2. The transmission mechanism according to claim 1, wherein a coating containing MoS 2 as a main component mixed with a resin as a binder is formed on the upper layer of the alumite layer formed as described above.
として形成したショットブラストによる凹凸表面或い
は、リン酸亜鉛皮膜、或いはリン酸マンガン皮膜の上層
に樹脂を結合剤として混合させたＭｏＳ2 を主成分とす
るコーティングであることを特徴とする請求項１の伝動
機構。3. The solid lubricating film has an abrasion resistance function (base).
2. The coating containing MoS 2 as a main component, which is a mixture of resin as a binder on the uneven surface formed by shot blasting, or on the upper surface of the zinc phosphate coating or the manganese phosphate coating. Transmission mechanism.
中に少なくともＰを分散させた複合Ｎｉめっきであるこ
とを特徴とする請求項１の伝動機構。4. The transmission mechanism according to claim 1, wherein the solid lubricating coating is a composite Ni plating in which at least P is dispersed in a Ni matrix.
球面軸受を有するものにおいて、球面軸受の内表面に下
地としてアルマイト皮膜を形成すると共に、その上に樹
脂を結合剤として混合させたＭｏＳ2 を主成分とするパ
ウダーをコーティングしたことを特徴とするボールジョ
イントを用いた伝動機構。5. A spherical bearing surrounding a spherical portion provided at the end of a connecting rod, wherein an alumite film is formed as a base on the inner surface of the spherical bearing, and a resin is mixed as a binder on the film. A transmission mechanism using a ball joint characterized by being coated with powder containing MoS 2 as a main component.
の内面に油溜用の空所を設けたことを特徴とするボール
ジョイントを用いた伝動機構。6. A transmission mechanism using a ball joint according to claim 5, wherein an inner space of the spherical bearing is provided with an oil reservoir.
成された球部を包囲する球面軸受の内表面に下地として
アルマイト皮膜を形成すると共に、その上に樹脂を結合
剤として混合させたＭｏＳ2 を主成分とするパウダーを
コーティングし、更に、分子中に塩素を含まない冷凍用
冷媒を圧縮吐出することを特徴とする圧縮機。7. A MoS 2 obtained by forming an alumite film as a base on the inner surface of a spherical bearing surrounding a spherical portion formed at the end of a connecting rod connected to a piston and mixing a resin as a binder thereon. A compressor characterized by coating a powder containing as a main component, and further compressing and discharging a refrigerating refrigerant that does not contain chlorine in the molecule.
を持って球面軸受で保持すると共に、該球面軸受の内表
面に耐摩耗性材料のコーティング層を設けたものにおい
て、該層の厚さが前記球面軸受の弾性変形量の約１／２
であることを特徴とするボールジョイントを用いた伝動
機構。8. A spherical bearing formed at the end of a connecting rod is elastically held by a spherical bearing, and a coating layer of a wear-resistant material is provided on the inner surface of the spherical bearing. Thickness is about 1/2 of elastic deformation of the spherical bearing
Is a transmission mechanism using a ball joint.
部の表面にも、前記アルマイト被膜及びＭｏＳ2 を主成
分とするパウダーのコーティングを設けたことを特徴と
するボールジョイントを用いた伝動機構。9. The ball joint according to claim 5, wherein the surface of the oil reservoir is also provided with the alumite coating and a powder coating containing MoS 2 as a main component. Transmission mechanism.
面軸受がＡｌ−Ｓｉ合金製のピストンサポートと一体成
形された円筒状壁面により形成されていることを特徴と
する圧縮機。10. The compressor according to claim 6, wherein the spherical bearing is formed by a cylindrical wall surface integrally formed with an Al—Si alloy piston support.
耐摩耗性の保護層を設けたものにおいて、該層を堅い層
と柔い層の二層とし、堅い方を球面軸受側，柔い方を球
部側に形成したことを特徴とするボールジョイントを用
いた伝動機構。11. A wear-resistant protective layer is provided between a spherical portion and a spherical bearing surrounding the spherical portion, wherein the layer comprises two layers, a hard layer and a soft layer, and the harder side is the spherical bearing side. , A transmission mechanism using a ball joint characterized in that the soft side is formed on the ball side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3232953A JP2817467B2 (en) | 1991-09-12 | 1991-09-12 | Transmission mechanism using ball joint and compressor using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3232953A JP2817467B2 (en) | 1991-09-12 | 1991-09-12 | Transmission mechanism using ball joint and compressor using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0571528A true JPH0571528A (en) | 1993-03-23 |
| JP2817467B2 JP2817467B2 (en) | 1998-10-30 |
Family
ID=16947455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3232953A Expired - Lifetime JP2817467B2 (en) | 1991-09-12 | 1991-09-12 | Transmission mechanism using ball joint and compressor using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2817467B2 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784950A (en) * | 1996-03-26 | 1998-07-28 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Single headed swash plate type compressor having a piston with an oil communication hole on a side of the piston remote from the cylinder bore and crank chamber |
| EP0890743A2 (en) * | 1997-06-26 | 1999-01-13 | Taiho Kogyo Co., Ltd. | Swash plate of swash-plate compressor |
| EP0911517A3 (en) * | 1997-10-24 | 1999-07-28 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| US6289785B1 (en) | 1996-11-21 | 2001-09-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| WO2002042652A1 (en) * | 2000-11-24 | 2002-05-30 | Kabushiki Kaisha Somic Ishikawa | Ball joint |
| WO2003029652A1 (en) * | 2001-10-01 | 2003-04-10 | The Timken Company | Hydraulic motors and pumps with engineered surfaces |
| WO2004016959A1 (en) * | 2002-07-25 | 2004-02-26 | ZF Lemförder Metallwaren AG | High-performance ball-and-socket joint with low moments |
| JP2007248020A (en) * | 2006-03-20 | 2007-09-27 | Hitachi Appliances Inc | Hermetic compressor, refrigeration system and refrigerator |
| US7377754B2 (en) | 2003-04-14 | 2008-05-27 | Kabushiki Kaisha Toyota Jidoshokki | Compressor |
| US8097569B2 (en) | 2003-04-14 | 2012-01-17 | Kabushiki Kaisha Toyota Jidoshokki | Coating composition for use in sliding parts |
| JP2012154402A (en) * | 2011-01-25 | 2012-08-16 | Jtekt Corp | Ball joint, and ball joint production method |
| JP6225282B1 (en) * | 2017-02-10 | 2017-11-01 | 株式会社コジマ | Slope adjustment unit and furniture |
| CH716079A1 (en) * | 2019-04-08 | 2020-10-15 | Liebherr Machines Bulle Sa | Axial piston machine. |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5784950A (en) * | 1996-03-26 | 1998-07-28 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Single headed swash plate type compressor having a piston with an oil communication hole on a side of the piston remote from the cylinder bore and crank chamber |
| US6289785B1 (en) | 1996-11-21 | 2001-09-18 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| EP0890743A2 (en) * | 1997-06-26 | 1999-01-13 | Taiho Kogyo Co., Ltd. | Swash plate of swash-plate compressor |
| EP0890743A3 (en) * | 1997-06-26 | 1999-03-31 | Taiho Kogyo Co., Ltd. | Swash plate of swash-plate compressor |
| US6123009A (en) * | 1997-06-26 | 2000-09-26 | Taiho Kogyo Co., Ltd. | Swash plate of swash-plate compressor |
| EP0911517A3 (en) * | 1997-10-24 | 1999-07-28 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type compressor |
| WO2002042652A1 (en) * | 2000-11-24 | 2002-05-30 | Kabushiki Kaisha Somic Ishikawa | Ball joint |
| US6895855B2 (en) | 2001-10-01 | 2005-05-24 | The Timken Company | Hydraulic motors and pumps with engineered surfaces |
| WO2003029652A1 (en) * | 2001-10-01 | 2003-04-10 | The Timken Company | Hydraulic motors and pumps with engineered surfaces |
| WO2004016959A1 (en) * | 2002-07-25 | 2004-02-26 | ZF Lemförder Metallwaren AG | High-performance ball-and-socket joint with low moments |
| CN100360817C (en) * | 2002-07-25 | 2008-01-09 | Zf雷姆伏尔德金属制品股份公司 | High-performance ball-and-socket joint with low moments |
| US7325289B2 (en) | 2002-07-25 | 2008-02-05 | Zf Lemforder Metallwaren Ag | High-performance ball and socket joint with low torques |
| US7377754B2 (en) | 2003-04-14 | 2008-05-27 | Kabushiki Kaisha Toyota Jidoshokki | Compressor |
| US8097569B2 (en) | 2003-04-14 | 2012-01-17 | Kabushiki Kaisha Toyota Jidoshokki | Coating composition for use in sliding parts |
| JP2007248020A (en) * | 2006-03-20 | 2007-09-27 | Hitachi Appliances Inc | Hermetic compressor, refrigeration system and refrigerator |
| JP2012154402A (en) * | 2011-01-25 | 2012-08-16 | Jtekt Corp | Ball joint, and ball joint production method |
| JP6225282B1 (en) * | 2017-02-10 | 2017-11-01 | 株式会社コジマ | Slope adjustment unit and furniture |
| CH716079A1 (en) * | 2019-04-08 | 2020-10-15 | Liebherr Machines Bulle Sa | Axial piston machine. |
| US11428103B2 (en) | 2019-04-08 | 2022-08-30 | Liebherr Machines Bulle Sa | Axial piston machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2817467B2 (en) | 1998-10-30 |
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