JPS5813257A - Making method of piston ring for piston pump and motor - Google Patents
Making method of piston ring for piston pump and motorInfo
- Publication number
- JPS5813257A JPS5813257A JP11000581A JP11000581A JPS5813257A JP S5813257 A JPS5813257 A JP S5813257A JP 11000581 A JP11000581 A JP 11000581A JP 11000581 A JP11000581 A JP 11000581A JP S5813257 A JPS5813257 A JP S5813257A
- Authority
- JP
- Japan
- Prior art keywords
- annular body
- piston
- crack
- shock
- piston ring
- 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
- 238000000034 method Methods 0.000 title description 2
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 2
- 229910000599 Cr alloy Inorganic materials 0.000 abstract 1
- 239000000788 chromium alloy Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 241000270666 Testudines Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000694 effects 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
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はピストンポンプ、或はピストンモータ用ピスト
ンリングの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a piston ring for a piston pump or a piston motor.
従来ピストンポンプ、モータのシリンダボア内を往復摺
動するピストンに、ｌｉ１図示のように環状のピストン
リング＆を嵌着して該シリンダボアｂとピストン０との
関に形成される間ａｌｌ′を閉鎖し、シリンダボアｂ内
の流体の漏れを防止するようＫしたものが知られるが、
この種ピストンリングａは第２図乃至第４図示のようＫ
。Conventional piston pumps and motors have a piston that slides back and forth in the cylinder bore, and an annular piston ring & is fitted on the piston as shown in li1 to close all' while it is formed between the cylinder bore b and the piston 0. It is known that the cylinder bore B is K-shaped to prevent leakage of fluid inside the cylinder bore b.
This kind of piston ring a is K as shown in Figs. 2 to 4.
.
シリンダボアｂの内径よりも少しく大色目の外径直と、
ビスシンＯのピストンリング装着部・の外径よりも少し
く大色目の内径ｔを有する環状体ｇｔ影形成たのち刃物
、レーず一ビー五等によ抄その１個所を切断墓して製作
するを一般とする。而してこのような切断によるピスト
ン、リング亀は切断により排ｌＩされる部分の長さを予
め考慮して正確に切断しなけれ鑓ならず、その長さが大
龜すぎるとピストンＯＫ装着した場合に間隙を生じて流
体の漏れ量が増大し、ｌンプ、モータの中種効率の低下
を来たす不都合があり、また該切断薗は比較的平滑にな
るのでビストリに装着したと龜骸切断部分から圧力流体
が漏れ易く同様に容積効率の低下を生ずる原因となり、
製作コストが高価で容積効率も悪い等の欠点があった。The outer diameter is slightly larger than the inner diameter of cylinder bore b,
After forming the annular body with an inner diameter t slightly larger than the outer diameter of the piston ring attachment part of the Bisshin O, cut one part of it with a knife, laser, etc. to produce it. General. Therefore, pistons and ring turtles that are cut in this way must be cut accurately, taking into consideration the length of the part that will be removed by cutting, and if the length is too large, it will be OK to install the piston. This has the disadvantage of creating a gap between the parts, increasing the amount of fluid leakage, and reducing the efficiency of the pump and motor.Also, since the cutting shaft is relatively smooth, when installed in the bistry, it is difficult to remove the fluid from the cutting part. Pressure fluid tends to leak, which also causes a decrease in volumetric efficiency.
It had drawbacks such as high production cost and poor volumetric efficiency.
本発明はこうした欠点の解消を目的としたもので、ピス
トンポンプ、モータのシリンダー７に適合する外径と、
該シリンダボア内を摺動するビスシンのピストンリング
装着部に適合する内径とを備えた環状体をタ璽ム鋼その
他の比較的 。The present invention aims to eliminate these drawbacks, and has an outer diameter that fits the cylinder 7 of the piston pump and motor.
The annular body is made of aluminum or other material and has an inner diameter that fits the piston ring mounting portion of the screw that slides in the cylinder bore.
硬い材料で形成し、該環状体の１個所を割れ藺が比較的
粗面となるように衝撃量のａＫより破断することを特徴
とする。It is characterized in that it is made of a hard material and breaks at one point of the annular body by an impact amount aK so that the crack becomes a relatively rough surface.
本発明の１Ｍを図１ｆｆｔ−参照して説明するに、第５
図に於て（りはピストンポンプ或はピストン毫−夕のシ
リンダボアに適合すゐ外径（ｌと、該シリンダボア内を
摺動するピストンに形成された凹部その他のピストンリ
ング装着１１に適合する内径（３）とを備えた環状体を
示し、該外径（２）の中心０１と内径（３）の中心Ｏ１
は互に同一の位置に存して均等な肉厚を有する環状体に
形成されるか或は第６図示のように各中心Ｏｒ ＊ Ｏ
ｓ を互に偏心１１１１’１ｌｌｌ。To explain 1M of the present invention with reference to FIG.
In the figure, the outer diameter (l) that fits the cylinder bore of the piston pump or piston cylinder, and the inner diameter that fits the recess or other piston ring mounting 11 formed in the piston that slides in the cylinder bore. (3) shows an annular body having a center 01 of the outer diameter (2) and a center O1 of the inner diameter (3).
are formed into an annular body having equal wall thickness and located at the same position, or each center Or*O is formed at the same position as shown in FIG.
s mutually eccentric 1111'1llll.
して位置させ、厚肉部（４）と薄肉部（５）とを有する
異形の環状体に形成され悪縁）ｓた該環状体（１）の外
側面（６）はピストンが多少とも揺動遭動管行なう場合
、第７図示のように略円弧状の曲ＷＫ形成される。該環
状体（１）はピストνと同様に比較的硬いクロム鋼、り
ｐム合金等で製作されるものとする。The outer surface (6) of the annular body (1) is formed into an irregularly shaped annular body having a thick wall part (4) and a thin wall part (5). In the case of performing a shock pipe, a substantially arcuate curve WK is formed as shown in FIG. The annular body (1), like the piston ν, is made of relatively hard chromium steel, rim alloy, or the like.
（７）は該環状体（１）の側面（８）の１個所に形成し
た切欠部で、骸切欠部（７）に例えｄ機械的に衝撃力を
与叉、該切欠部（７）ｔ−スターＦ位置としてクラック
を進行させ破断するもので、該破断ｇ（９）の割れ面は
比較的粗面に形成される。該衝撃力を与える個所は該環
状体（１）の側面（８）に限らず外側面（６）若しくは
内側面α・或は隅角部Ｑ１）であってもよい、また衝撃
力の代わりに該環状体（１）に例えば第７図示のような
曲げ荷重νｓ ｅ ＩＦＩ ｗ １Ｐｓ ￥を与え破断
部（９）を形成する仁とも出来る。(7) is a notch formed at one location on the side surface (8) of the annular body (1), which is likened to a shell notch (7) when mechanical impact force is applied to the notch (7). - The crack advances and breaks at the star F position, and the crack surface of the break g(9) is formed to be a relatively rough surface. The point where the impact force is applied is not limited to the side surface (8) of the annular body (1), but may be the outer surface (6), the inner surface α, or the corner Q1), or instead of the impact force. It is also possible to apply a bending load νs e IFI w 1Ps ¥ to the annular body (1) as shown in FIG. 7, for example, to form a fracture portion (9).
さらに誼破断部（９）は例えｄ切欠部（））と衝撃力１
４の組合せにより第８図示のように斜め方向に形成する
こと１可能である。Furthermore, the fractured part (9) is, for example, the d notch ()) and the impact force 1
By the combination of 4, it is possible to form it in an oblique direction as shown in the 8th figure.
：１：１１１１１一
本発明方法は比較的硬いクロム鋼等め環状体を衝撃等に
より二割れ面が粗面となるように破断じてピストンリン
グを得るもので、従来の切断により製作する式のピスト
ンリングに比べ比較的簡単安価に製作出来ると共に切断
排除される部分がないので正確な寸法彫状の１のが得ら
れ、またその割れ面は粗面であるのでビスシンに装着し
た場合該割れ目を介して流体が流れに〈〈なりピストン
ポンプ、モータの容積効率が向上する等の効果がある。:1:11111 - The method of the present invention is to obtain a piston ring by fracturing a relatively hard annular body made of chromium steel or the like by impact so that the bifurcated surface becomes a rough surface. Compared to a ring, it can be produced relatively easily and inexpensively, and since there are no parts to be cut and removed, it is possible to obtain a piece with accurate dimensions, and since the cracked surface is a rough surface, when it is attached to a screw ring, it can be made through the crack. This has the effect of improving the volumetric efficiency of piston pumps and motors.
第１図は従来例の裁断側面図、第２図乃至第４図は従来
のピストンリングの、斜、視図、第５図は本発明製造方
法の１Ｈの斜視図、第６図は環状体の１例め平面図、第
７図及び第８図は本発明製造方法の他の例の側面図であ
る。
（１）・・・環 状 体 （２）・・・外
径（３）・・・内 径 （９）・・・破 断
部外２名Fig. 1 is a cut side view of a conventional example, Figs. 2 to 4 are perspective views of a conventional piston ring, Fig. 5 is a perspective view of 1H of the manufacturing method of the present invention, and Fig. 6 is an annular body. A plan view of the first example, and FIGS. 7 and 8 are side views of other examples of the manufacturing method of the present invention. (1)...Annular body (2)...Outside
Diameter (3)...Inner diameter (9)...Broken 2 outsiders
Claims (1)
と、該シリンダボア内ｔ一層動するピストンのピストン
リング装着部に適合する内径とを備えた環状体ｔり田ム
鋼その他の比較的硬い材料で形成し１、該環状体の１個
所を割れ面が比較的粗面となるように衝撃その他によ抄
破断することを特徴とするピストンポンプ、モータ用ピ
ストンリングの製造方法。A piston pump is an annular body made of steel or other relatively hard material and has an outer diameter that fits the cylinder bore of the motor and an inner diameter that fits the piston ring mounting portion of the piston that moves further within the cylinder bore. 1. A method for producing piston rings for piston pumps and motors, which comprises breaking one part of the annular body by impact or other means so that the cracked surface becomes a relatively rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11000581A JPS5813257A (en) | 1981-07-16 | 1981-07-16 | Making method of piston ring for piston pump and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11000581A JPS5813257A (en) | 1981-07-16 | 1981-07-16 | Making method of piston ring for piston pump and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5813257A true JPS5813257A (en) | 1983-01-25 |
Family
ID=14524682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11000581A Pending JPS5813257A (en) | 1981-07-16 | 1981-07-16 | Making method of piston ring for piston pump and motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5813257A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0299346A (en) * | 1988-10-07 | 1990-04-11 | Alps Electric Co Ltd | Current supply control method for thermal head |
| JP2007064346A (en) * | 2005-08-31 | 2007-03-15 | Nippon Piston Ring Co Ltd | Pressure ring and its manufacturing method |
| WO2012113351A1 (en) * | 2011-02-25 | 2012-08-30 | Neo Mechanics Limited | Axial piston pump with pistons having metallic sealing rings |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50128407A (en) * | 1974-03-28 | 1975-10-09 |
-
1981
- 1981-07-16 JP JP11000581A patent/JPS5813257A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50128407A (en) * | 1974-03-28 | 1975-10-09 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0299346A (en) * | 1988-10-07 | 1990-04-11 | Alps Electric Co Ltd | Current supply control method for thermal head |
| JP2007064346A (en) * | 2005-08-31 | 2007-03-15 | Nippon Piston Ring Co Ltd | Pressure ring and its manufacturing method |
| US8627758B2 (en) | 2006-04-07 | 2014-01-14 | Neo Mechanics Limited | Axial piston pump with pistons having metallic sealing rings |
| WO2012113351A1 (en) * | 2011-02-25 | 2012-08-30 | Neo Mechanics Limited | Axial piston pump with pistons having metallic sealing rings |
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