JP5363654B2 - 油圧ポンプ・モータ - Google Patents
油圧ポンプ・モータ Download PDFInfo
- Publication number
- JP5363654B2 JP5363654B2 JP2012530624A JP2012530624A JP5363654B2 JP 5363654 B2 JP5363654 B2 JP 5363654B2 JP 2012530624 A JP2012530624 A JP 2012530624A JP 2012530624 A JP2012530624 A JP 2012530624A JP 5363654 B2 JP5363654 B2 JP 5363654B2
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- Prior art keywords
- dead center
- center side
- port
- valve plate
- cylinder
- Prior art date
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- 230000008929 regeneration Effects 0.000 claims description 33
- 238000011069 regeneration method Methods 0.000 claims description 33
- 230000010349 pulsation Effects 0.000 claims description 21
- 239000010720 hydraulic oil Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 20
- 239000003921 oil Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/02—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis with wobble-plate
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2042—Valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
- F01B3/0055—Valve means, e.g. valve plate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
- F01B3/007—Swash plate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F03C1/0644—Component parts
- F03C1/0652—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0636—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F03C1/0644—Component parts
- F03C1/0655—Valve means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C1/00—Reciprocating-piston liquid engines
- F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
- F03C1/06—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinder axes generally coaxial with, or parallel or inclined to, main shaft axis
- F03C1/0678—Control
- F03C1/0686—Control by changing the inclination of the swash plate
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
- F04B1/124—Pistons
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2035—Cylinder barrels
-
- 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
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
-
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
-
- 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
- F04B2201/00—Pump parameters
- F04B2201/08—Cylinder or housing parameters
- F04B2201/0802—Vibration
-
- 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
- F04B2201/00—Pump parameters
- F04B2201/08—Cylinder or housing parameters
- F04B2201/0804—Noise
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
Δt=L/V
で求められ、例えば、L=0.3m、V=1300m/secとすると、
Δt=2.3×10^(−4)
となる。この時間差Δtを用い、油圧ポンプの定格回転数Rを2000rpmとして角度差Δθを求めると、
Δθ=(R/60)×360°×Δt
=(2000/60)×360°×(2.3×10^(−4))
=2.76°
となる。
つぎに、この発明の実施の形態2について説明する。この実施の形態2では、図6に示すように、下死点側連通口32に替えて、下死点側連通口33を設け、この下死点側連通口33は、シリンダポート26−1〜26−8が摺動する周の内周側に設けられる。そして、この下死点側連通口33に連通する連通孔42−1〜42−8が各シリンダポート26−1〜26−8に形成される。また、残圧再生回路30の両端は、上死点側連通口31と下死点側連通口33とに接続される。各シリンダポート26−1〜26−8は、連通孔41−1〜41−8に加え、連通孔42−1〜42―8を設ける必要がある。
2 ケース
3 斜板
4 シュー
5,10 ピストン
5a テーパ面
6,106 シリンダブロック
7,107 弁板
8 エンドキャップ
9a,9b ベアリング
11 スプライン構造
14 リング
15 ばね
16 可動リング
17 ニードル
18 押圧部材
20,21 軸受け
25 シリンダボア
26,26−1〜26−8,126−1〜126−9 シリンダポート
30,130 残圧再生回路
31,131 上死点側連通口
32,33,132 下死点側連通口
41−1〜41−8,42−1〜42−8,51,141−1〜141−9 連通孔
61 ドレンポート
62 キリ孔
P1 吸込ポート
P2 吐出ポート
PB1 弁板吸込ポート
PB2 弁板吐出ポート
S,Sa 摺動面
E1,E2 とじ込み領域
Claims (5)
- 回転軸まわりに複数のシリンダボアが形成されたシリンダブロックが、高圧側ポートと低圧側ポートとを有した弁板に対して摺動し、斜板の傾斜によって各シリンダボア内のピストンの往復動の量を制御するアキシャル型の油圧ポンプ・モータであって、
前記シリンダブロックに形成され、前記シリンダボアから前記弁板にむかう連通孔と、
前記弁板に形成され、上死点側で弁板吸込ポートの端部と弁板吐出ポートの端部との間の領域である上死点側とじ込み領域に形成される上死点側連通口と、
前記弁板に形成され、下死点側で弁板吸込ポートの端部と弁板吐出ポートの端部との間の領域である下死点側とじ込み領域に形成される下死点側連通口と、
前記上死点側連通口と前記下死点側連通口とを接続する残圧再生回路と、
を備え、前記下死点側連通口は、下死点側で、前記上死点側連通口の位置と前記回転軸中心とを結ぶ線よりも前記シリンダブロックの回転進行方向側に所定角度差をもって設けられることを特徴とする油圧ポンプ・モータ。 - 前記上死点側連通口は、前記ピストンが上死点近傍となるタイミングで前記連通孔と連通する位置に設けられることを特徴とする請求項1に記載の油圧ポンプ・モータ。
- 前記下死点側連通口は、前記ピストンが下死点近傍となるタイミングで前記連通孔と連通する位置に設けられることを特徴とする請求項1または2に記載の油圧ポンプ・モータ。
- 前記上死点側連通口と前記下死点側連通口とは、同心円状に配置され、かつそれら同心円の半径が異なることを特徴とする請求項1〜3のいずれか一つに記載の油圧ポンプ・モータ。
- 前記所定角度差は、前記残圧再生回路長を吐出脈動伝搬速度で除算した時間に対応する角度差であることを特徴とする請求項1〜4のいずれか一つに記載の油圧ポンプ・モータ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012530624A JP5363654B2 (ja) | 2010-08-26 | 2011-08-12 | 油圧ポンプ・モータ |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010189839 | 2010-08-26 | ||
JP2010189839 | 2010-08-26 | ||
PCT/JP2011/068441 WO2012026348A1 (ja) | 2010-08-26 | 2011-08-12 | 油圧ポンプ・モータ |
JP2012530624A JP5363654B2 (ja) | 2010-08-26 | 2011-08-12 | 油圧ポンプ・モータ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2012026348A1 JPWO2012026348A1 (ja) | 2013-10-28 |
JP5363654B2 true JP5363654B2 (ja) | 2013-12-11 |
Family
ID=45723351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012530624A Active JP5363654B2 (ja) | 2010-08-26 | 2011-08-12 | 油圧ポンプ・モータ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8794124B2 (ja) |
JP (1) | JP5363654B2 (ja) |
KR (1) | KR101342818B1 (ja) |
CN (1) | CN102985691B (ja) |
DE (1) | DE112011102155B4 (ja) |
WO (1) | WO2012026348A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103998784B (zh) * | 2012-03-26 | 2015-08-05 | 萱场工业株式会社 | 流体压泵马达 |
JP5983433B2 (ja) * | 2013-01-29 | 2016-08-31 | 井関農機株式会社 | 苗移植機 |
JP6267598B2 (ja) * | 2014-08-01 | 2018-01-24 | 川崎重工業株式会社 | 液圧回転機 |
CN105745440A (zh) * | 2014-10-31 | 2016-07-06 | 株式会社小松制作所 | 液压泵/马达 |
US11592000B2 (en) | 2018-07-31 | 2023-02-28 | Danfoss Power Solutions, Inc. | Servoless motor |
JP7390151B2 (ja) * | 2019-10-03 | 2023-12-01 | 株式会社小松製作所 | 油圧ポンプモータ |
JP7377095B2 (ja) | 2019-12-19 | 2023-11-09 | 株式会社小松製作所 | 油圧ポンプ・モータ |
CN112483342A (zh) * | 2020-12-10 | 2021-03-12 | 山东泰丰智能控制股份有限公司 | 一种带吸音栅的紧凑高效型泵 |
DE102021200205A1 (de) | 2021-01-12 | 2022-07-14 | Robert Bosch Gesellschaft mit beschränkter Haftung | Axialkolbenmaschine mit hoher Antriebdrehzahl |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09317627A (ja) * | 1996-05-25 | 1997-12-09 | Hitachi Constr Mach Co Ltd | 油圧ポンプ |
WO2009037994A1 (ja) * | 2007-09-19 | 2009-03-26 | Komatsu Ltd. | 油圧ポンプ・モータおよび油圧ポンプ・モータの脈動防止方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5593285A (en) | 1995-01-13 | 1997-01-14 | Caterpillar Inc. | Hydraulic axial piston unit with multiple valve plates |
JP3547900B2 (ja) * | 1996-03-22 | 2004-07-28 | 日立建機株式会社 | アキシャルピストン型油圧ポンプ |
JP2005140035A (ja) | 2003-11-07 | 2005-06-02 | Kawasaki Precision Machinery Ltd | 液圧機械 |
DE102004007933B3 (de) * | 2004-02-18 | 2005-06-16 | Sauer-Danfoss (Neumünster) GmbH & Co OHG | Axialkolbenmaschine mit einer Vorsteuerungseinrichtung zur Dämpfung von Strömungspulsationen und Herstellungsverfahren |
-
2011
- 2011-08-12 JP JP2012530624A patent/JP5363654B2/ja active Active
- 2011-08-12 DE DE112011102155.0T patent/DE112011102155B4/de active Active
- 2011-08-12 KR KR1020137000727A patent/KR101342818B1/ko not_active IP Right Cessation
- 2011-08-12 CN CN201180034359.5A patent/CN102985691B/zh active Active
- 2011-08-12 US US13/809,671 patent/US8794124B2/en active Active
- 2011-08-12 WO PCT/JP2011/068441 patent/WO2012026348A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09317627A (ja) * | 1996-05-25 | 1997-12-09 | Hitachi Constr Mach Co Ltd | 油圧ポンプ |
WO2009037994A1 (ja) * | 2007-09-19 | 2009-03-26 | Komatsu Ltd. | 油圧ポンプ・モータおよび油圧ポンプ・モータの脈動防止方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20130031329A (ko) | 2013-03-28 |
DE112011102155B4 (de) | 2015-02-12 |
CN102985691A (zh) | 2013-03-20 |
CN102985691B (zh) | 2014-03-12 |
US20130152777A1 (en) | 2013-06-20 |
DE112011102155T5 (de) | 2013-05-16 |
WO2012026348A1 (ja) | 2012-03-01 |
KR101342818B1 (ko) | 2013-12-17 |
US8794124B2 (en) | 2014-08-05 |
JPWO2012026348A1 (ja) | 2013-10-28 |
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