JPH11132143A - Shoe for swash plate type compressor and its manufacture - Google Patents
Shoe for swash plate type compressor and its manufactureInfo
- Publication number
- JPH11132143A JPH11132143A JP9298991A JP29899197A JPH11132143A JP H11132143 A JPH11132143 A JP H11132143A JP 9298991 A JP9298991 A JP 9298991A JP 29899197 A JP29899197 A JP 29899197A JP H11132143 A JPH11132143 A JP H11132143A
- Authority
- JP
- Japan
- Prior art keywords
- shoe
- swash plate
- type compressor
- plate type
- grinding
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/02—Making machine elements balls, rolls, or rollers, e.g. for bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
- F04B27/0878—Pistons
- F04B27/0886—Piston shoes
-
- 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
- F05C2251/00—Material properties
- F05C2251/10—Hardness
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、自動車用エアコ
ン等に用いられる斜板式コンプレッサのシュー及びその
製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe for a swash plate type compressor used for an air conditioner for a vehicle and a method for manufacturing the same.
【０００２】[0002]
【従来の技術】斜板式コンプレッサは、図２にその概略
構成を示すように、一対のシリンダブロック（５ａ，５
ｂ）内に、斜板（２）を固定した回転軸（３）が回転自
在に支持されている。シリンダブロック（５ａ，５ｂ）
には円周方向の等間隔位置に複数のシリンダボア（５）
が形成され、各ボア（５）内に両頭形のピストン（４）
が摺動自在に収容されている。各ピストン（４）の中央
部分には斜板（２）の外周部を跨ぐようにして凹陥部
（４ａ）が形成され、この凹陥部（４ａ）の軸方向対向
面に球面座（４ｂ）が形成されている。シュー（１）は
この球面座（４ｂ）に収容され、斜板（２）とピストン
（４）との間に介在して、斜板（２）の回転運動をピス
トン（４）の往復運動に変換させる働きをする。なお、
両頭形のピストンを備えた複動形の場合を例示したが、
単動形の場合も基本的には同様の構成である。シュー
（１）は一般に半球状で、その球面状外周面にてピスト
ン（４）の球面座（４ｂ）と係合し、平坦な底面にて斜
板（２）と摺接する。2. Description of the Related Art As shown schematically in FIG. 2, a swash plate compressor has a pair of cylinder blocks (5a, 5a).
A rotating shaft (3) to which the swash plate (2) is fixed is rotatably supported in b). Cylinder block (5a, 5b)
Has a plurality of cylinder bores (5) at circumferentially equal positions
Formed in each bore (5), a double-headed piston (4)
Are slidably accommodated. A concave portion (4a) is formed at the center of each piston (4) so as to straddle the outer peripheral portion of the swash plate (2), and a spherical seat (4b) is formed on an axially facing surface of the concave portion (4a). Is formed. The shoe (1) is housed in the spherical seat (4b), and is interposed between the swash plate (2) and the piston (4) to convert the rotation of the swash plate (2) into the reciprocating motion of the piston (4). It works to convert. In addition,
Although the double-acting type with a double-headed piston has been illustrated,
The single-acting type basically has the same configuration. The shoe (1) is generally hemispherical, engages the spherical seat (4b) of the piston (4) on its spherical outer peripheral surface, and comes into sliding contact with the swash plate (2) on a flat bottom surface.
【０００３】シュー（１）は鋼球から型鍛造によって成
形され、半球状ないしはボタン状の外観を呈している。
このシュー（１）は、通常、軸受鋼（ＳＵＪ２）からな
る鋼球を素形材として、型鍛造（ヘッダー）、フラッシ
ング、研削、プレス加工といった工程を経て製造される
（特公平３−３３４１９号公報、特公平７−２４９１３
号公報）。The shoe (1) is formed from a steel ball by die forging, and has a hemispherical or button-like appearance.
The shoe (1) is usually manufactured by using a steel ball made of bearing steel (SUJ2) as a base material, and performing processes such as die forging (header), flashing, grinding, and pressing (Japanese Patent Publication No. 3-33419). Gazette, Japanese Patent Publication 7-24913
No.).
【０００４】[0004]
【発明が解決しようとする課題】斜板式コンプレッサに
おいては、斜板の回転揺動に伴い、シューはいわゆるミ
ソ擦り運動を強いられるため、局部当たりが生じやす
く、さらに、この種の部位の潤滑油は摺動に適した油で
はなく、冷媒液と混合した希薄な油であるため、潤滑環
境として極めて厳しい。これが焼付き等の不具合の原因
となる。このような状況下において、耐摩耗性があり、
かつ、耐焼付き性のあるシューが要求されている。In a swash plate type compressor, a so-called miso rubbing motion is forced on a shoe as the swash plate rotates, so that a local contact is likely to occur. Is not a suitable oil for sliding, but a dilute oil mixed with a refrigerant liquid, so that the lubrication environment is extremely severe. This causes problems such as seizure. Under these circumstances, there is abrasion resistance,
Further, there is a demand for a shoe having seizure resistance.
【０００５】そこで、この発明の目的は、斜板式コンプ
レッサ用シューの耐摩耗性、耐焼付き性を向上させるこ
とにあり、また、そのような特性を備えたシューの製造
方法を提供することにある。Accordingly, an object of the present invention is to improve the wear resistance and seizure resistance of a swash plate type compressor shoe, and to provide a method of manufacturing a shoe having such characteristics. .
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、この発明の斜板式コンプレッサ用シューは、シュー
の表面に窒化処理を施し、極表面に高硬度の硬化層を形
成したものである。In order to achieve the above object, a swash plate type compressor shoe according to the present invention is obtained by subjecting a surface of the shoe to nitriding treatment and forming a hardened layer having a high hardness on an extremely surface.
【０００７】すなわち、請求項１の発明は、ピストンの
球面座と接する凸球面と、斜板と接する平坦な摺接面を
備える半球状シューの表面に、窒化処理による硬化層を
形成させたことを特徴とする斜板式コンプレッサ用シュ
ーである。That is, according to the first aspect of the present invention, a hardened layer is formed by nitriding on the surface of a hemispherical shoe having a convex spherical surface in contact with a spherical seat of a piston and a flat sliding contact surface in contact with a swash plate. A swash plate type compressor shoe characterized by the following.
【０００８】請求項２の発明は、軸受鋼を型鍛造により
球形に成形し、研削した素形材を、プレス加工により半
球状に成形してシューを製造するにあたり、研削加工の
前に、前記素形材に窒化処理を施して表面に硬化層を形
成したことを特徴とする斜板式コンプレッサ用シューの
製造方法である。According to a second aspect of the present invention, when the bearing steel is formed into a spherical shape by die forging, and the ground material is formed into a hemispherical shape by press working to produce a shoe, the grinding steel is formed before the grinding. A method for producing a swash plate type compressor shoe, characterized in that a hardened layer is formed on a surface by performing a nitriding treatment on a shaped material.
【０００９】より具体的には、型鍛造、フラッシング、
窒化処理、焼鈍、研削、プレス、焼入れ焼戻し、バレ
ル、平面研削、平面バフといった工程を順次実行する
（請求項３）。More specifically, die forging, flashing,
Steps such as nitriding, annealing, grinding, pressing, quenching and tempering, barrel, surface grinding, and surface buff are sequentially performed (claim 3).
【００１０】プレス加工によって半球状に成形する前の
球形の素形材に窒化処理を施すことにより、シューのそ
の後の加工工程での打ち疵等を減少させることができ
る。また、半球状に成形した後に窒化処理を施すことも
考えられるが、球形の素形材の段階で窒化処理を施した
方が、均一な硬化層を形成させやすい。これらの有利さ
は請求項２または３の製造方法によって製造されたシュ
ーも当然に享受する（請求項４）。[0010] By subjecting the spherical base material to a nitriding treatment before being formed into a hemispherical shape by press working, it is possible to reduce dents and the like in a subsequent processing step of the shoe. It is also conceivable to perform a nitriding treatment after forming into a hemispherical shape, but it is easier to form a uniform hardened layer by performing the nitriding treatment at the stage of the spherical shaped material. These advantages are naturally enjoyed by a shoe manufactured by the manufacturing method of claim 2 or claim 3 (claim 4).
【００１１】[0011]
【発明の実施の形態】図１にシュー（１０）の形状を例
示する。もっとも、本発明は図１に例示した形状のシュ
ーに限らず、その他の形状のものについても適用するこ
とができることは言うまでもない。シュー（１０）は図
示するように半球状ないしはボタン状の外観を呈してお
り、外周面（１４）にてピストン（４）の球面座（４
ｂ）と接し、平坦な底面（１８）が斜板（２）との摺接
面となる。外周面（１４）は球面座（４ｂ）の曲率半径
Ｒ１と等しい曲率半径の凸球面である。外周面（１４）
と底面（１８）とはなめらかに連続している。底面（１
８）の中央部に凹所を形成することもある。シュー（１
０）の頂部（１６）は球面座（４ｂ）から離れていて球
面座（４ｂ）との間に凹所を形成している。図示例の場
合、頂部（１６）は外周面（１４）の曲率半径Ｒ１より
も大きな曲率半径Ｒ２の部分球面で構成されるが、凸球
面状の外周面を直線的に切除して頂部を形成してもよ
い。いずれの場合も頂部（１６）と外周面（１４）とを
なめらかに連続させるのが望ましい。また、頂部（１
６）にさらに凹所を形成してもよい。FIG. 1 shows an example of the shape of a shoe (10). However, it goes without saying that the present invention is not limited to the shoe having the shape illustrated in FIG. The shoe (10) has a hemispherical or button-like appearance as shown, and has a spherical seat (4) of the piston (4) on the outer peripheral surface (14).
b), and the flat bottom surface (18) serves as a sliding contact surface with the swash plate (2). The outer peripheral surface (14) is a convex spherical surface having a radius of curvature equal to the radius of curvature R1 of the spherical seat (4b). Outer circumference (14)
And the bottom surface (18) are smoothly continuous. Bottom (1
A recess may be formed at the center of 8). Shoe (1
The top (16) of 0) is spaced from the spherical seat (4b) and forms a recess with the spherical seat (4b). In the case of the illustrated example, the top portion (16) is composed of a partial spherical surface having a radius of curvature R2 larger than the radius of curvature R1 of the outer peripheral surface (14), but the convex spherical outer peripheral surface is linearly cut off to form the top portion. May be. In any case, it is desirable that the top (16) and the outer peripheral surface (14) be smoothly continuous. The top (1
A recess may be further formed in 6).
【００１２】シュー（１０）は鋼球から型鍛造によって
成形される。玉軸受に使用される焼入れされた軸受鋼
（ＳＵＪ２）からなる鋼球を素形材として用いることに
より、高精度のものを比較的安価に量産することができ
る。図３に従って製造工程を説明するならば、ヘッダー
による型鍛造で素材を球形に成形し、フラッシング後、
窒化処理を施して表面に均一な硬化層を形成させる。窒
化処理の具体的方法は、ガス窒化、液体窒化、イオン窒
化等の知られているいずれの方法を採用してもよい。次
に、焼戻しを行い、研削により所望の精度の鋼球に仕上
げた後、プレス加工により半球状に成形する。そして、
焼入れ、バレル、平面研削、平面バフを経て図１に示し
たような製品シューを得る。The shoe (10) is formed from a steel ball by die forging. By using steel balls made of quenched bearing steel (SUJ2) used for ball bearings as castings, high-precision steel balls can be mass-produced relatively inexpensively. If the manufacturing process is described according to FIG. 3, the material is formed into a spherical shape by die forging with a header, and after flashing,
A uniform hardened layer is formed on the surface by performing a nitriding treatment. As a specific method of the nitriding treatment, any known method such as gas nitriding, liquid nitriding, or ion nitriding may be employed. Next, after tempering and finishing into a steel ball with desired accuracy by grinding, the steel ball is formed into a hemispherical shape by press working. And
After quenching, barrel, surface grinding, and surface buffing, a product shoe as shown in FIG. 1 is obtained.
【００１３】[0013]
【実施例】本発明によるシュー（１０）の耐焼付き性及
び耐摩耗性を検証するため、カーエアコンの斜板式コン
プレッサに用いられる半球シューおよび斜板の摩耗・摩
擦に与えるシューの表面処理の影響を、純滑り条件のモ
デル試験により試験した。試験機は、ピンオンディスク
型試験機をボールオンディスク型に改造したもので、冷
媒加圧雰囲気で試験ができるようにチャンバの加減圧が
可能である。ここでは、一定速度で回転するアルミ製円
盤（ディスク）に鋼球を垂直方向に所定の重量のウエイ
トで押し付け、鋼球の表面処理の有無が摩擦・摩耗にど
のように影響するかを試験した。ディスク材質は、高シ
リコン−アルミ材Ａ３９０（１７％Ｓｉ，ＡＡ規格標
準）を平面仕上げしたものを用いた。EXAMPLE In order to verify the seizure resistance and wear resistance of a shoe (10) according to the present invention, the effect of surface treatment of a shoe on the wear and friction of a hemispherical shoe and a swash plate used in a swash plate type compressor of a car air conditioner. Were tested by a model test of pure sliding conditions. The testing machine is a pin-on-disc type testing machine modified to a ball-on-disc type, and the pressure in the chamber can be increased or decreased so that the test can be performed in a refrigerant pressurized atmosphere. Here, a steel ball was pressed against an aluminum disk (disk) rotating at a constant speed in a vertical direction with a weight of a predetermined weight, and a test was performed to determine how the surface treatment of the steel ball affected friction and wear. . The disk material used was a high silicon-aluminum material A390 (17% Si, AA standard standard) which had been finished in a plane.
【００１４】チャンバ内を５０ｍｍＨｇまで減圧した
後、代替フロンの冷媒ガスをゲージ圧で４ｋｇｆ/ ｃｍ
2 まで充填して試験した。希釈率１％では、窒化処理品
は標準品に比べ、１．５：０．１（分）と１５倍、ま
た、希釈率２％では、４．５：２．５（分）と１．８倍
の耐焼付き性能を有していることが判った。摩耗量の比
較をする目的で、試験途中焼付きが生じないように十分
な油量を供給し、試験を行った。表１にその結果を示
す。摩擦力は摩擦係数で評価し、摩擦係数の安定する運
転時間１０分後の値を示す。摩耗量はディスクの摩耗痕
深さと幅で評価した。また、試験の繰返し数はｎ＝２と
した。After the pressure in the chamber is reduced to 50 mmHg, the refrigerant gas of the alternative Freon is gauged at 4 kgf / cm.
Filled up to 2 and tested. At a dilution rate of 1%, the nitrided product is 1.5: 0.1 (min) and 15 times that of the standard product, and at a dilution ratio of 2%, it is 4.5: 2.5 (min) and 1. It was found to have eight times the seizure resistance. For the purpose of comparing the amount of wear, a test was performed by supplying a sufficient amount of oil so that seizure did not occur during the test. Table 1 shows the results. The frictional force is evaluated by a coefficient of friction, and shows a value after an operation time of 10 minutes when the coefficient of friction is stabilized. The amount of wear was evaluated by the depth and width of the wear mark of the disk. The number of test repetitions was n = 2.
【００１５】[0015]
【表１】 [Table 1]
【００１６】試験条件は表２のとおりである。The test conditions are as shown in Table 2.
【００１７】[0017]
【表２】 [Table 2]
【００１８】ボールの表面処理は表３のとおりである。Table 3 shows the surface treatment of the balls.
【００１９】[0019]
【表３】 [Table 3]
【００２０】 冷媒ガス中での試験に先立って、条件設定
を目的に空気中での予備試験を実施した。結果を図４に
示す。潤滑油量は最も少ない１％希釈液浸漬とした。焼
付きまでの時間は、予定では３０分以内と設定していた
が、ここでの実験ではすべての試験が１５分以内の寿命
となり、ほぼ予想通りの結果が得られた。焼付き時間の
長いものはｎ増しを行った。焼付き寿命時間は実施例＞
比較例となり、実施例がやや優れていた。[0020] Setting conditions before testing in refrigerant gas
A preliminary test in air was carried out for the purpose of. Fig. 4 shows the results.
Show. The amount of lubricating oil was set to 1% dilution liquid immersion, which was the smallest. Burning
The time until the attachment was set to be within 30 minutes in the schedule
However, in this experiment, all tests have a lifetime of 15 minutes or less.
The result was almost as expected. Of burning time
Long ones increased by n. Example of seizure life time>
It was a comparative example, and the example was slightly better.
【００２１】 予備試験で潤滑油量と寿命時間のおおよそ
の値が確認されたので、以後の試験は冷媒ガス（ＨＦＣ
１３４ａ）圧をゲージ圧で４ｋｇｆ/ ｃｍ2 とし、潤
滑油量、およびボールの表面処理と焼付き寿命時間、
焼付きが発生しないように油量が十分にある状態でのボ
ールの表面処理と摩耗量、の２点について試験した。[0021] Approximate lubrication oil amount and life time in preliminary test
Of the refrigerant gas (HFC)
134a) Pressure is 4kgf / cm in gauge pressureTwoAnd Jun
The amount of lubricating oil, and the surface treatment and seizing life time of the ball,
Bore with sufficient oil to prevent seizure
The test was conducted on two points, that is, the surface treatment and the wear amount of the steel.
【００２２】希釈率１％の場合の結果を図５に示す。冷
媒ガス中での結果はすべてが１．５分以内で焼き付き、
非常に短寿命となった。空気中での結果（図４）と比べ
て１／５以下の寿命時間である。潤滑油中に冷媒ガスが
溶解し、油膜形成機能が低下するため、短寿命になった
と考えられる。FIG. 5 shows the results when the dilution ratio is 1%. All results in refrigerant gas burn in less than 1.5 minutes,
Very short life. The life time is 1/5 or less as compared with the result in air (FIG. 4). It is considered that the service life was shortened because the refrigerant gas was dissolved in the lubricating oil and the oil film forming function was reduced.
【００２３】 希釈率２％の場合の結果を図６に示す。希
釈率１％の場合と比べて焼付きまでの時間は若干長くな
るが大幅には延びない。[0023] FIG. 6 shows the results when the dilution ratio was 2%. Rare
The time to seizure is slightly longer than when the batting rate is 1%
But not significantly.
【００２４】 希釈率３％の場合の結果を図７に示す。希
釈率２％の場合に比べて焼付き寿命時間は長くなるが、
ばらつきも大きくなる。比較例と実施例とはほぼ同じ水
準と考えられる。[0024] FIG. 7 shows the results when the dilution ratio was 3%. Rare
The seizure life time is longer than in the case of 2%
Variations also increase. Almost the same water as the comparative example and the example
It is considered as associate.
【００２５】 摩耗量の比較をする目的で、試験途中で焼
付きが発生しないよう、十分な油量で試験を行った。潤
滑油はスポイトで１０滴（０．２５ｇ）をディスク上の
トラック径内の中心部にあらかじめ塗布しておいた。３
０分間の運転で焼付きを生じたものは無かった。[0025] In order to compare the amount of wear,
The test was performed with a sufficient amount of oil to prevent sticking. Jun
Use a dropper to drop 10 drops (0.25g) on the disc
It was previously applied to the center of the track diameter. 3
No burning occurred in the operation for 0 minutes.
【００２６】 摩擦力は摩擦係数で評価した。摩耗量はデ
ィスクの摩耗痕が研削目と平行になる位置（０°と１８
０°位置）で測定し、最大摩耗痕深さと幅で評価した。
また、試験の繰返し数はｎ＝２とした。試験後のディス
クの摩耗痕深さ測定結果を図８に示す。ディスク摩耗痕
深さは比較例≒実施例となる。摩耗試験で得られた摩擦
係数の経時変化を図９に示す。[0026] The friction force was evaluated by a coefficient of friction. The amount of wear is
The position where the disc wear mark is parallel to the grinding line (0 ° and 18 °)
(0 ° position) and evaluated by the maximum wear scar depth and width.
The number of test repetitions was n = 2. Disc after test
FIG. 8 shows the measurement results of the wear scar depth of the steel. Disc wear mark
The depth is Comparative Example ≒ Example. Friction obtained from wear test
FIG. 9 shows the change with time of the coefficient.
【００２７】[0027]
【発明の効果】以上説明したように、この発明の斜板式
コンプレッサ用シューは、ピストンの球面座と接するシ
ューの外周面、および斜板と接する平坦摺動面が少なく
とも表面に窒化処理が施されているため、耐焼き付き性
が格段に向上し、コンプレッサの長寿命化が図れる。ま
た、鋼球の段階で窒化処理を施すことにより、均一な窒
化処理層ができ、また、シューの加工工程での打ち疵等
が減少する。さらに、軸受鋼を素材としているため、耐
摩耗性が向上し、加えて窒化処理により耐焼き付き性が
向上する。As described above, in the swash plate compressor shoe of the present invention, at least the outer peripheral surface of the shoe in contact with the spherical seat of the piston and the flat sliding surface in contact with the swash plate are subjected to nitriding. Therefore, seizure resistance is remarkably improved, and the life of the compressor can be extended. Further, by performing the nitriding treatment at the stage of the steel ball, a uniform nitriding treatment layer can be formed, and dents and the like in a shoe processing step are reduced. Further, since the bearing steel is used as a material, wear resistance is improved, and in addition, seizure resistance is improved by nitriding.
【図１】ピストンの球面座に当接したシューの縦断面図
である。FIG. 1 is a longitudinal sectional view of a shoe in contact with a spherical seat of a piston.
【図２】斜板式コンプレッサの縦断面図である。FIG. 2 is a vertical sectional view of a swash plate type compressor.
【図３】製造工程を説明するための工程図である。FIG. 3 is a process chart for explaining a manufacturing process.
【図４】試験結果を示すグラフ図である。FIG. 4 is a graph showing test results.
【図５】試験結果を示すグラフ図である。FIG. 5 is a graph showing test results.
【図６】試験結果を示すグラフ図である。FIG. 6 is a graph showing test results.
【図７】試験結果を示すグラフ図である。FIG. 7 is a graph showing test results.
【図８】試験結果を示すグラフ図である。FIG. 8 is a graph showing test results.
【図９】試験結果を示すグラフ図である。FIG. 9 is a graph showing test results.
２ 斜板 ４ ピストン ４ｂ 球面座 １０ シュー １４ 外周面（凸球面） １６ 頂部 １８ 底面（摺接面） 2 Swash plate 4 Piston 4b Spherical seat 10 Shoe 14 Outer peripheral surface (convex spherical surface) 16 Top 18 Bottom surface (Sliding contact surface)
Claims (4)
板と接する平坦な摺接面を備える半球状シューの表面
に、窒化処理による硬化層を形成させたことを特徴とす
る斜板式コンプレッサ用シュー。1. A swash plate compressor having a hardened layer formed by nitriding on the surface of a hemispherical shoe having a convex spherical surface in contact with a spherical seat of a piston and a flat sliding contact surface in contact with a swash plate. For shoe.
削した素形材を、プレス加工により半球状に成形してシ
ューを製造するにあたり、研削加工の前に、前記素形材
に窒化処理を施して表面に硬化層を形成したことを特徴
とする斜板式コンプレッサ用シューの製造方法。2. When a bearing steel is formed into a spherical shape by die forging and the ground material is ground into a hemisphere by press working to produce a shoe, nitriding is performed on the material before grinding. A method for producing a swash plate type compressor shoe, wherein a hardened layer is formed on a surface by performing a treatment.
鈍、研削、プレス、焼入れ焼戻し、バレル、平面研削、
平面バフの工程を順次実行する請求項２の斜板式コンプ
レッサ用シューの製造方法。3. die forging, flashing, nitriding, annealing, grinding, pressing, quenching and tempering, barrel, surface grinding,
3. The method for manufacturing a swash plate type compressor shoe according to claim 2, wherein the steps of planar buffing are sequentially performed.
造された斜板式コンプレッサー用シュー。4. A swash plate type compressor shoe manufactured by the manufacturing method according to claim 2.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29899197A JP3936447B2 (en) | 1997-10-30 | 1997-10-30 | Manufacturing method of swash plate type compressor shoe |
| DE1998150155 DE19850155B4 (en) | 1997-10-30 | 1998-10-30 | Slider for a swash plate compressor and method for its manufacture |
| FR9813653A FR2770591B1 (en) | 1997-10-30 | 1998-10-30 | SHOE FOR COMPRESSOR WITH BEATER TRAY AND METHOD FOR MANUFACTURING THE SHOE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29899197A JP3936447B2 (en) | 1997-10-30 | 1997-10-30 | Manufacturing method of swash plate type compressor shoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11132143A true JPH11132143A (en) | 1999-05-18 |
| JP3936447B2 JP3936447B2 (en) | 2007-06-27 |
Family
ID=17866820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29899197A Expired - Fee Related JP3936447B2 (en) | 1997-10-30 | 1997-10-30 | Manufacturing method of swash plate type compressor shoe |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3936447B2 (en) |
| DE (1) | DE19850155B4 (en) |
| FR (1) | FR2770591B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708406B2 (en) | 2001-06-15 | 2004-03-23 | Kabushiki Kaisha Toyota Jidoshokki | Method of manufacturing shoe for compressor |
| US6748654B2 (en) | 2001-06-15 | 2004-06-15 | Kabushiki Kaisha Toyota Jidoshokki | Method of manufacturing shoe for compressor |
| US6837948B2 (en) | 2001-06-18 | 2005-01-04 | Kabushiki Kaisha Toyota Jidoshokki | Process of production of compressor shoe |
| JP2006063428A (en) * | 2004-08-30 | 2006-03-09 | Honda Motor Co Ltd | Formation method of hard nitride layer and roller chain and silent chain obtained by the formation method |
| CN115126671A (en) * | 2021-03-25 | 2022-09-30 | 大同金属工业株式会社 | Sliding member |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012869A1 (en) * | 2007-03-17 | 2008-09-18 | Schaeffler Kg | Swash plate gear, in particular for an axial piston compressor |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002767A1 (en) * | 1980-03-28 | 1981-10-01 | Taiho Kogyo Co Ltd | Shoe for swash plate type compressor and method for manufacturing the same |
| JPS59193712A (en) * | 1983-04-20 | 1984-11-02 | Shin Nippon Koukiyuu Kk | Production of semispherical body |
| JPS6026188A (en) * | 1983-07-20 | 1985-02-09 | Taiho Kogyo Co Ltd | Swash plate type compressor |
| JPH07115099B2 (en) * | 1987-12-18 | 1995-12-13 | 株式会社日立製作所 | Hardened ball cutting method |
| JPH0724913B2 (en) * | 1987-12-18 | 1995-03-22 | 株式会社リケン | Cold forging method for shoes for swash plate compressors |
| JPH0333419A (en) | 1989-06-29 | 1991-02-13 | Mitsubishi Motors Corp | Catalyst converter |
| JPH0710416B2 (en) * | 1989-12-28 | 1995-02-08 | 株式会社中部螺子製作所 | Manufacturing method of hemispherical shoe for swash plate type compressor |
| JPH0724630Y2 (en) * | 1991-05-22 | 1995-06-05 | 株式会社ゼクセル | Variable displacement oscillating plate compressor |
| JPH0724913A (en) | 1993-07-12 | 1995-01-27 | Sekisui Chem Co Ltd | Roll-molding method for resin foamed sheet |
| JPH0882279A (en) * | 1994-09-13 | 1996-03-26 | Hitachi Constr Mach Co Ltd | Swash plate type hydraulic rotating machine and manufacture thereof |
| JP3568061B2 (en) * | 1995-05-17 | 2004-09-22 | 大豊工業株式会社 | Swash plate of swash plate compressor and combination of swash plate and shoe |
-
1997
- 1997-10-30 JP JP29899197A patent/JP3936447B2/en not_active Expired - Fee Related
-
1998
- 1998-10-30 DE DE1998150155 patent/DE19850155B4/en not_active Expired - Fee Related
- 1998-10-30 FR FR9813653A patent/FR2770591B1/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6708406B2 (en) | 2001-06-15 | 2004-03-23 | Kabushiki Kaisha Toyota Jidoshokki | Method of manufacturing shoe for compressor |
| US6748654B2 (en) | 2001-06-15 | 2004-06-15 | Kabushiki Kaisha Toyota Jidoshokki | Method of manufacturing shoe for compressor |
| US6837948B2 (en) | 2001-06-18 | 2005-01-04 | Kabushiki Kaisha Toyota Jidoshokki | Process of production of compressor shoe |
| JP2006063428A (en) * | 2004-08-30 | 2006-03-09 | Honda Motor Co Ltd | Formation method of hard nitride layer and roller chain and silent chain obtained by the formation method |
| JP4488840B2 (en) * | 2004-08-30 | 2010-06-23 | 本田技研工業株式会社 | Method for forming hard nitride layer, and roller chain and silent chain obtained by this method |
| CN115126671A (en) * | 2021-03-25 | 2022-09-30 | 大同金属工业株式会社 | Sliding member |
| CN115126671B (en) * | 2021-03-25 | 2023-09-08 | 大同金属工业株式会社 | Sliding member |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19850155B4 (en) | 2010-01-07 |
| FR2770591B1 (en) | 2002-03-15 |
| DE19850155A1 (en) | 1999-05-06 |
| JP3936447B2 (en) | 2007-06-27 |
| FR2770591A1 (en) | 1999-05-07 |
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