JPS5920576A - Capacity control mechanism for variable displacement type axial piston machine - Google Patents
Capacity control mechanism for variable displacement type axial piston machineInfo
- Publication number
- JPS5920576A JPS5920576A JP57128875A JP12887582A JPS5920576A JP S5920576 A JPS5920576 A JP S5920576A JP 57128875 A JP57128875 A JP 57128875A JP 12887582 A JP12887582 A JP 12887582A JP S5920576 A JPS5920576 A JP S5920576A
- Authority
- JP
- Japan
- Prior art keywords
- swash plate
- control
- control shaft
- piston
- shaft
- 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
-
- 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
- F04B1/22—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 having two or more sets of cylinders or 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は流体の静圧ツノを利用して１ネルギの授受を行
う容積式流体機械、Ｊなわち可変容量形アキシャルピス
トン機械の容量制御機構に関づる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a displacement control mechanism for a positive displacement fluid machine, that is, a variable displacement axial piston machine, which transfers one energy by using a static pressure horn of a fluid.
かかる機械としては、油圧ポンプ、油圧モータなどが良
く知られている。一般に可変容吊形アキシｔ・ルビスト
ン機械の容量調節作業ｉ１なわち油圧ポンプの場合はイ
の吐出量又は油圧モータの場合はその回転速度、出ツノ
等は、ビス１〜ンが接する斜板の傾転角度を調節するこ
とによって行われる。Hydraulic pumps, hydraulic motors, and the like are well known as such machines. In general, the capacity adjustment work for variable-capacity suspended Axis T/Ruviston machines, i.e., the discharge amount in the case of a hydraulic pump, or the rotation speed and protrusion in the case of a hydraulic motor, is performed on the swash plate that the screws 1 to 1 contact. This is done by adjusting the tilt angle.
双子この種１幾械をビス１〜ン機械ど略称して説明する
と、回転軸には、シリンダが固着され、このシリンタ内
に設けられている複数個のビス１−ンは、その一端が斜
板に接し、該斜板の傾転角が変えられるとビス１−ンの
ス１−ロークが変えられ、そして容量が変えられるよう
になっている。This type of machine is abbreviated as a screw machine.A cylinder is fixed to the rotating shaft, and the plurality of screws installed in the cylinder have one end beveled. When the swash plate contacts the plate and the tilt angle of the swash plate is changed, the stroke of the screw 1 is changed and the capacity is changed.
ところで、この種のビスミーン機械に（１３い−Ｃは、
周知の如く回転軸従ってシリンダの回転によ−）で、ピ
ストンの位置関係が斜板の傾転中心軸心に対して周期的
に変化する。このｌ、＝めに、シリンダ内に’（ｌ捧汗
が発生づるとその反力によって斜板には、傾転中心軸の
回りに変動モーメン１〜が発生し、傾斜回転中心軸は揺
動的に振動覆る。イしてこの七−メントの絶対値と振動
幅は一般に大きく、簡単な摩擦力或いは補助手段を使用
しない人力では制止できず、したがって従来は油圧シリ
ンダや油圧リーボモータなどの増力装置によつＣ１ｍ１
ｈ＜振動）を制止ラ−ると共に、斜板の傾転角度の調節
がｔｒわれでいる。By the way, this type of bismine machine (13-C is
As is well known, the positional relationship of the piston changes periodically with respect to the tilting center axis of the swash plate due to the rotation of the rotation axis (ie, the cylinder). For this reason, when sweat is generated in the cylinder, the reaction force generates a fluctuation moment 1 ~ around the tilting center axis on the swash plate, and the tilting rotation center axis oscillates. The absolute value and vibration width of this 7-ment are generally large and cannot be stopped by simple frictional force or human power without the use of auxiliary means. Yotsu C1m1
In addition to suppressing vibrations (h<vibration), it is also difficult to adjust the tilt angle of the swash plate.
しかしながら、この種増力装置は、構造が複雑で、高価
であるという欠点があり、また油圧シリンダ等には油圧
による脈動があつ−Ｃ完全な制振が得ｌうれないという
欠点がある。However, this type of booster has the drawbacks of being complex and expensive, and also has the drawback that the hydraulic cylinders and the like are subject to pulsations due to the hydraulic pressure, making it impossible to achieve complete vibration damping.
したがって木光明の目的は、比較的に簡単な装置を用い
て傾転中心軸の揺動を防止できる司変容吊形アキシ鵞？
ルビストン機械の容帛制御機格を提供りるにある。Therefore, the purpose of Mokkomei was to create a transmutable hanging type axy goose that could prevent the swinging of the tilting center axis using a relatively simple device.
Provides capacity control equipment for Rubiston machinery.
本発明によれは、−ス・１のピストン機械を直列又は並
列に配置したものにおいて斜板の傾転中心軸のぞれぞれ
にはウオームホイールが固定され、これらのウオームホ
イールはつＡ−ムと噛合っており、そのつｔ−ムは制御
軸に支持されている。したが−）てウオームからつＡ−
ムホイールには回転力が伝達されるが、その逆方向には
回転力が伝達されず、斜板がビス１〜ンから受ける反力
モーメンｉ〜が互いに相殺されるようになっている。According to the present invention, a worm wheel is fixed to each of the tilting central axes of the swash plate in the piston machines A-1 arranged in series or parallel, and these worm wheels The shaft is in mesh with the shaft, and the shaft is supported by the control shaft. However-) Warm Karatsu A-
Rotational force is transmitted to the swash plate, but no rotational force is transmitted in the opposite direction, so that the reaction forces i~ that the swash plate receives from the screws 1~ cancel each other out.
以下本発明の１実施例を図面によって説明づる。An embodiment of the present invention will be described below with reference to the drawings.
さて第１図および第２図を参照−すると、−灼のビス１
〜ン機械２０．２０′が対称位置に配置されており、各
ビス１〜ン機械は、それぞれ斜板が受りる反力モーメン
トを略等しいようにしである。すなわち図示の実施例で
は同形のものが用いられ、ているので、一方のビスｌ−
ン機械にはスラッジ１符号をイ」シて重複説明を省略覆
る。略長方形を呈する枠体１には、回転軸２が軸受３に
よって軸支され、この回転軸２にはシリンダ４が固定さ
れている。Now, referring to Fig. 1 and Fig. 2, - Burning screw 1
The screw machines 20, 20' are arranged in symmetrical positions, and each screw machine 20, 20' is arranged so that the reaction force moment exerted on the respective swash plates is approximately equal. That is, in the illustrated embodiment, the same shape is used, so one screw l-
The sludge 1 code is entered for the machine in question, and redundant explanations are omitted. A rotating shaft 2 is supported by a bearing 3 on a substantially rectangular frame 1, and a cylinder 4 is fixed to the rotating shaft 2.
イし−Ｃシリンタ４内には軸方向に配置されＩＪ少数周
のピストン５が設【ノられ、イの一方端は斜板６に接し
、使方端にはそれぞれ対応Ｊる複数の圧縮室７が形成さ
れている。圧縮室７は、弁ｌＡＶに設（）られている各
油路８を介して外部１幾構（図示されず）に接続され−
（いる。ｔｌお弁体Ｖとシリンダ４との接続関係づなわ
ちビス１〜ン（成域２０がポンプであるどきは、流体の
吸引吐出のための流路の接続関係は周知であるので、説
明を省略づ−る。斜板６は傾転中心軸９によって支持さ
れてＪ５す、この中心軸９は枠体１の軸受１０．１０に
軸支されている。A piston 5 with a small circumference of IJ is arranged in the axial direction in the cylinder 4, one end of which is in contact with a swash plate 6, and a plurality of compression chambers corresponding to each of the ends in use. 7 is formed. The compression chamber 7 is connected to the outside 1 (not shown) through oil passages 8 provided in the valve lAV.
(If the area 20 is a pump, the connection relationship between the flow path for sucking and discharging fluid is well known.) The swash plate 6 is supported by a tilting central shaft 9, and this central shaft 9 is rotatably supported by a bearing 10.10 of the frame 1.
斜板の傾転軸９の端部には、つＡ−ムホイール１１が固
着され、このホイールは制御軸１３上のつＡ−ム１２と
噛合している。At the end of the tilting shaft 9 of the swash plate, a arm wheel 11 is fixed, which meshes with a horn arm 12 on a control shaft 13.
つｔ−ムホイールとつＡ−ムとの噛合においては、伝達
効率が一方向によく、他り向には悪いので、つＡ−ムホ
イール１１．１１′が回転しようとしてし、これと噛合
しているつＡ−ム１２．１２ ′１１回転することはな
い。また第２図に示づようｉこつＡ−ム１２．１２′は
亙いに逆方向のネジ山或いは谷を有づるので、制御軸１
３がイｆ意の手段ににって回転されると、その回転力は
つＡ−ムホイール１１．１１′従って斜板６．６′に伝
達され、斜板は同じ角度づなわち同じ容…に調ｆｉｂさ
れる。When the gear wheel and the gear arm engage, the transmission efficiency is good in one direction and poor in the other direction, so the gear arm wheel 11.11' tries to rotate and meshes with it. Arm 12.12 '11 will not rotate. In addition, as shown in FIG. 2, the shaft 12.12' has screw threads or valleys in opposite directions, so that the control shaft 1
3 is rotated by any means, its rotational force is transmitted to the arm wheel 11.11' and thus to the swash plate 6.6', which rotates at the same angle and therefore the same volume... It is adjusted to fib.
本発明は、以上のように構成され−Ｃいるので、ビスン
１−１幾械２０．２０′が作動］−ると斜板６．６′に
は例えば第２図にＪ３いて矢印△、Ａ′で示す方向にモ
ーメン１へが生じても、このモーメン１−はつＡ−ム１
２．１２′を介して制御軸１ζうに引張り力として作用
する。従って反力モーメン１〜は相殺される。瞬間のモ
ーメントが矢印Δ、Δ′と逆方向であっても、今度は制
御軸には圧縮力として作用するが、同様に相殺されるこ
とは明らかである。The present invention is constructed as described above, so that the screws 1-1 and 20.20' are operated], and the swash plate 6.6' has, for example, arrows △, A, and J3 in FIG. Even if moment 1 is generated in the direction shown by ', this moment 1 - A - Mo 1
2.12' acts as a pulling force on the control shaft 1ζ. Therefore, the reaction force moments 1~ are canceled out. It is clear that even if the instantaneous moment is in the opposite direction to the arrows Δ and Δ', it will act as a compressive force on the control shaft, but it will be canceled out in the same way.
ビス１ルン機械２０．２０″の容量を変えるために、制
御軸１３を任意の手段によって回転させると、つＡ−ム
ホイール、ウオーム等は方向が異なるたけで大きざウビ
ツチ（よ同じに形成されているので、斜板６．６′は同
しくげ１転角だ【ノ回転される。When the control shaft 13 is rotated by any means in order to change the capacity of the machine 20.20'', the wheels, worms, etc. will have a large difference (even if they are formed in the same way) because the directions are different. Therefore, the swash plate 6.6' is rotated by the same angle of rotation.
この回転操作ｔ、１、制御軸１３は軸受１７′Ｉ、１／
Ｉによって軸支され、またつＡ−ムからつＡ−ムホイー
ルへの伝達であるので、小さいツノて可能である。This rotational operation t,1, the control shaft 13 is connected to the bearing 17'I,1/
Since it is pivoted by I and the transmission is from A-me to A-me wheel, a small horn is possible.
以上説明したＪ、うに、本ざｔ明によると一対の斜板の
傾転中心軸がつＡ−ムホイールどつＡ−ムどにＪ、っ−
Ｃ相互に結合されているので、斜板の反カモ＝メン１−
が効果的に相殺される。この場合、つＡ−ムホイールと
ウオームという南中１ｉ：Ｑ ）ｊ′Ｉｉによっている
ので、油圧シリンダ方式のようにリージ現象は光生ぜず
、斜板の１辰動力＋Ｊ、、Ｊ、り完全に制止される。ま
た歯車機構であるので、油の漏洩対策などが不要で、製
作は勿論のことメインテノンスも簡単である。更には油
圧シリングなどの油圧プノ式に比較してコンバク１−に
なり、したか−）て小ｍの軽減にも役立つものである。According to the above-mentioned explanation, the central axis of tilting of the pair of swash plates is the A-m wheel.
C Since they are mutually connected, the anti-camo of the swash plate = men 1-
are effectively offset. In this case, since the two A-m wheels and worms are used in the middle (1i:Q)j'Ii, the leege phenomenon does not occur as in the hydraulic cylinder system, and the swash plate's one-stroke power + J, , J' is completely be stopped. Furthermore, since it is a gear mechanism, there is no need to take measures against oil leakage, and it is easy to manufacture and maintain. Furthermore, it is more compact than a hydraulic pressure type such as a hydraulic sill, and is also useful for reducing the small m.
さて木ｔｉ明の実施に際して例えば斜板の傾転角を相互
に無関係に制御できるようにづることも（゛きる。そし
てその実施例が第３図に示されている。Now, in implementing the invention, it is also possible to control the tilting angles of the swash plates independently of each other. An example of this is shown in FIG.
第３図において第１図および第２図で示した部材と同様
な部材に【Ｊ同じ符号を付してΦ少説明は省略するが、
一方のつＡ−ム１２′は筒状軸１５に固定され−（いる
。でし−にの輔１５内に制御軸１３の端部が挿入され、
軸１３には孔１Ｇが、また筒状軸１５には孔１６′が形
成され、これらの孔１６．１６′にピン１７が挿入され
ると、筒状軸１５と制御＠１３は一体となって、第１図
Ｊ３ Ｊ：び第２図に関して述べたのと同様な作用効果
を奏するが、ビン１７を抜くと軸１３．１５はでれぞれ
別体となって、甲独で回転される。従って斜板の傾転角
は相互に無関係に調節てさる。この間合、制御軸１３の
外周部および筒状軸１５の内周面には、これら両軸にＪ
、たがるＶ字形溝１９が形成され、そして、この溝に鋼
球１８が挿入されているので（溝おＪ：び鋼球は模式的
に図示され−Ｃいるにづぎず、製作成いは組立て過程を
示ずものではない）、両軸１３．１５間の相対的回転は
可能であるが、軸方向の移動は規制されている。なお斜
板の傾転角は、相互に等しくなっていなくても、従って
反ツノモーメントが等しくなっていなくても、゛ｔ−メ
ン１〜が相殺されることには変わりはない。In FIG. 3, members similar to those shown in FIGS.
One arm 12' is fixed to the cylindrical shaft 15. The end of the control shaft 13 is inserted into the sleeve 15,
A hole 1G is formed in the shaft 13, and a hole 16' is formed in the cylindrical shaft 15. When the pin 17 is inserted into these holes 16 and 16', the cylindrical shaft 15 and the control @13 become one body. 1 and 2, however, when the bottle 17 is removed, the shafts 13 and 15 become separate bodies and are rotated independently. Ru. The tilting angles of the swash plates are therefore adjusted independently of each other. At this distance, on the outer circumference of the control shaft 13 and on the inner circumference of the cylindrical shaft 15, there is a
, a V-shaped groove 19 is formed, and the steel ball 18 is inserted into this groove. does not represent the assembly process), relative rotation between the two shafts 13, 15 is possible, but axial movement is restricted. Note that even if the tilt angles of the swash plates are not equal to each other, and therefore the anti-horn moments are not equal, the t-men 1 will still be canceled out.
そしで相殺されない残余のモーノ＞ｈはズラズト軸受１
４′で受（Ｊられる。The remaining mono>h that is not canceled out is Zrazuto bearing 1
It is received (J) at 4'.
また本発明（、工、斜軸形のビス１−ン機械にム適用さ
れ１ｑることは明らかである。It is also clear that the present invention can be applied to a diagonal shaft type screw machine.
第１図は本発明の１実施例を示 ［ａｉ而面、第２図は
同要部の側面図、第３図は第２図に相当する他の実施例
を承り側面図である。
４・・・シリング ５．５・・・ピズ１〜ン６・・・
斜板 ９・・・傾転中心軸 １１・・・つＡ−ムボ
イール １２・・・つＡ−ム１３・・・制御軸FIG. 1 shows one embodiment of the present invention. FIG. 2 is a side view of the same essential parts, and FIG. 3 is a side view of another embodiment corresponding to FIG. 2. 4...Shilling 5.5...Piz 1-6...
Swash plate 9... Tilting center axis 11... Two A-mov wheels 12... One A-m 13... Control axis
Claims (2)
ピストンの一端が接して該ビス１〜ンに往復運動を与え
ると共にその傾転角が変えられてス１−ロークが変えら
れる斜板とから成り、前記斜板が前記ピストンから受【
プる反力モーメントが略等しい一対の可変容量形アキシ
ャルビス１−ン機械を制ｔｌＩ１１Ｊる機構にａ３いて
、前記斜板の傾転中心軸のそれぞれにはつＡ−ムホイー
ルが固定され、これらのウオームホイールはウオームと
噛合−）でおり、該つＡ−ムは制御軸に支持され−（お
り、以ってｎ１■記反力し−メンｈが相殺されることを
特徴とする可変容量形アキシャルピストン機械の容」制
御機構。(1) A cylinder containing a plurality of pistons, and a swash plate with one end of the pistons in contact to give reciprocating motion to the screws and whose tilt angle can be changed to change the stroke. The swash plate is received from the piston.
A mechanism for controlling a pair of variable displacement axial screw machines with approximately equal reaction force moments is fixed to each of the tilting central axes of the swash plate. The worm wheel is in mesh with the worm, and the worm wheel is supported by the control shaft, so that the reaction force n1 is canceled out by the men h. Axial piston machine control mechanism.
嵌入する第２の制御軸とよりなり、両制御軸は前記つＡ
−ムをそれぞれ支持し−（、Ｊ３つ、両年制御軸）ｎｎ
の連結が解除されて斜板の傾転角が甲独に制御される特
許請求の範囲の第１項記載の可変音１′ｉ）形ノア４−
シヤルピストン機械の容量制御機構。(2) The control 1111Ill consists of a first control shaft and a second control shaft fitted into it, and both control shafts are
- support each arm - (, J 3, both control axes) nn
Variable sound 1'i) type Noah 4- according to claim 1, in which the connection of the swash plate is released and the tilting angle of the swash plate is controlled independently.
Capacity control mechanism for shear piston machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57128875A JPS5920576A (en) | 1982-07-26 | 1982-07-26 | Capacity control mechanism for variable displacement type axial piston machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57128875A JPS5920576A (en) | 1982-07-26 | 1982-07-26 | Capacity control mechanism for variable displacement type axial piston machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5920576A true JPS5920576A (en) | 1984-02-02 |
| JPS6354146B2 JPS6354146B2 (en) | 1988-10-26 |
Family
ID=14995516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57128875A Granted JPS5920576A (en) | 1982-07-26 | 1982-07-26 | Capacity control mechanism for variable displacement type axial piston machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5920576A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999067532A1 (en) * | 1998-06-24 | 1999-12-29 | Brueninghaus Hydromatik Gmbh | Dual pump unit |
| US6361282B1 (en) | 1998-06-24 | 2002-03-26 | Brueninghaus Hydromatik Gmbh | Dual pump unit |
| JP2008231924A (en) * | 2007-03-16 | 2008-10-02 | Kayaba Ind Co Ltd | Opposed swash plate piston pump-motor |
| DE102017212452A1 (en) * | 2017-07-20 | 2019-01-24 | Robert Bosch Gmbh | Hydrostatic axial piston machine with two engines |
-
1982
- 1982-07-26 JP JP57128875A patent/JPS5920576A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999067532A1 (en) * | 1998-06-24 | 1999-12-29 | Brueninghaus Hydromatik Gmbh | Dual pump unit |
| US6361282B1 (en) | 1998-06-24 | 2002-03-26 | Brueninghaus Hydromatik Gmbh | Dual pump unit |
| JP2008231924A (en) * | 2007-03-16 | 2008-10-02 | Kayaba Ind Co Ltd | Opposed swash plate piston pump-motor |
| DE102017212452A1 (en) * | 2017-07-20 | 2019-01-24 | Robert Bosch Gmbh | Hydrostatic axial piston machine with two engines |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6354146B2 (en) | 1988-10-26 |
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