JPS608158Y2 - high pressure vane pump - Google Patents
high pressure vane pumpInfo
- Publication number
- JPS608158Y2 JPS608158Y2 JP14350378U JP14350378U JPS608158Y2 JP S608158 Y2 JPS608158 Y2 JP S608158Y2 JP 14350378 U JP14350378 U JP 14350378U JP 14350378 U JP14350378 U JP 14350378U JP S608158 Y2 JPS608158 Y2 JP S608158Y2
- Authority
- JP
- Japan
- Prior art keywords
- vane
- pressure
- hole
- pin
- discharge
- 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.)
- Expired
Links
Landscapes
- Rotary Pumps (AREA)
Description
【考案の詳細な説明】
この考案は、ピン押上方式ベーンを使用した高圧ベーン
ポンプに関する。[Detailed Description of the Invention] This invention relates to a high-pressure vane pump using a pin push-up vane.
従来のピン押上方式ベーンをもっベーンポンプの代表例
は特公昭50−6044号公報に示されている。A typical example of a conventional vane pump having a pin push-up type vane is shown in Japanese Patent Publication No. 6044/1983.
この従来のベーンポンプにおいては、第1図に示すよう
にロータ1のラジアル方向の溝に摺動自在なベーン2が
挿入され、その底部に適度のベーン押上げ推力を与える
ための受圧面積の小さいピン3を同様に挿入しである。In this conventional vane pump, as shown in Fig. 1, a slidable vane 2 is inserted into a groove in the radial direction of a rotor 1, and a pin with a small pressure-receiving area is attached to the bottom of the vane 2 to apply an appropriate thrust to push up the vane. Insert 3 in the same way.
すなわち、このようなピン押上方式ベーンの高圧ベーン
ポンプでは、ロータ1のラジアル方向の溝にカムリング
4と摺動する複数のベーン2を挿入し、該ロータ1内の
各ベーン2の底部室5に、ロータ1の回転に伴って、ロ
ータ両側を挾むプレッシャプレートおよびサイドプレー
ト(図示せず)に設けられた圧力導入溝から、吐出部区
間で吐出圧力を、吸入部区間で吸入圧力をそれぞれ導入
するようにし、さらに吐出部区間においては前記底部室
5に導入された吐出圧力をロータ軸周囲の環状室7に導
入し且つ吸入部区間では前記環状室7に導入された吐出
圧力によって前記底部室5内でベーン2に押上げ推力を
与えるべくベーン底部に当接する貫通孔6付きのピン3
を各底部室5と前記環状室7間に摺動可能に配設しであ
る。That is, in such a high-pressure vane pump with a pin push-up type vane, a plurality of vanes 2 that slide on the cam ring 4 are inserted into the radial groove of the rotor 1, and the bottom chamber 5 of each vane 2 in the rotor 1 is As the rotor 1 rotates, discharge pressure is introduced in the discharge section and suction pressure is introduced in the suction section from pressure introduction grooves provided in pressure plates and side plates (not shown) that sandwich both sides of the rotor. Further, in the discharge section, the discharge pressure introduced into the bottom chamber 5 is introduced into the annular chamber 7 around the rotor axis, and in the suction section, the discharge pressure introduced into the annular chamber 7 is used to increase the discharge pressure introduced into the bottom chamber 5. A pin 3 with a through hole 6 abuts against the bottom of the vane in order to give upward thrust to the vane 2.
is slidably disposed between each bottom chamber 5 and the annular chamber 7.
この動作について述べると、吐出部区間でベーン2の底
部室5に導びかれた吐出圧力を、両端の圧力差によって
前記ベーンから離れているピン3の上部より、ピン中心
の貫通孔6を介してピン底部のロータ軸周囲の環状室7
に導入させ、前記ピンとベーンとが離れた状態のままロ
ータ1の回転にしたがって吸入部区間に達すると、ベー
ン底部室5は吸入圧力となり、第2図に示すようにピン
の上下部の圧力差によって該ピンはベーンの底部と急速
に圧着し、そのためにピン3の上部孔はベーン底部で閉
塞されて吐出側からピン底部に導びかれる圧油の漏れを
防止するとともに吸入部区間でのベーン押上げ推力を発
生させる。Regarding this operation, the discharge pressure introduced into the bottom chamber 5 of the vane 2 in the discharge section is transferred from the upper part of the pin 3, which is separated from the vane, through the through hole 6 at the center of the pin due to the pressure difference between both ends. An annular chamber 7 around the rotor axis at the bottom of the pin
When the pin and vane reach the suction section as the rotor 1 rotates while being separated from each other, the vane bottom chamber 5 becomes suction pressure, and the pressure difference between the upper and lower parts of the pin increases as shown in FIG. As a result, the pin is quickly pressed against the bottom of the vane, so that the upper hole of the pin 3 is blocked by the bottom of the vane to prevent leakage of pressure oil led from the discharge side to the bottom of the pin, and to prevent leakage of pressure oil from the suction section of the vane. Generates upward thrust.
しかるに、前述の様なピンおよびベーンの作動サイクル
過程において、吐出部区間でベーンと離れたピンが吸入
部区間に達したときに勢いよくベーン底部に衝突してベ
ーンに圧着するので、この衝突音が連続して外部に漏れ
て1ジヤワ、ジャリョという騒音となり、またピンとそ
れを挿入したロータ溝との間隙が大きいときには吸入部
区間での漏れが大きくなって、この漏れに対応する量を
吐出部区間でピン貫通孔から補給することになり、その
補給量が大きくなれば吐出部区間でのピン貫通孔からの
補給時間が長くなってピンとベーンとの離れる距離が大
きくなり、この状態で吸入部区間に達するとピンがベー
ンを押上げるのにより多くの時間がかかることになって
ポンプ回転に対して整合できなくなるので、吸入部区間
の初期段階ではカムリングにベーンが密着せずにその段
階を越してはじめて密着することになり、そのために吸
入部区間の吸入過程における容積変化が急激に過ぎてキ
ャビテーションが発生し、′バリ、バリョという異常音
が起ることになる。However, during the operation cycle of the pin and vane as described above, when the pin that is separated from the vane in the discharge section reaches the suction section, it collides with the bottom of the vane with force and presses against the vane, resulting in this collision noise. Continuously leaks to the outside, creating a buzzing noise. Also, when the gap between the pin and the rotor groove in which it is inserted is large, the leakage in the suction section becomes large, and the amount corresponding to this leakage is reduced to the discharge section. If the replenishment amount is large, the replenishment time from the pin through hole in the discharge section becomes longer, and the distance between the pin and the vane increases.In this state, the suction section When reaching the section, it takes more time for the pin to push up the vane and it becomes unable to align with the pump rotation, so at the initial stage of the suction section, the vane does not come into close contact with the cam ring and the vane does not come into close contact with the cam ring. As a result, the volume of the suction section changes rapidly during the suction process, causing cavitation, which causes abnormal sounds such as 'burr' and 'burr'.
さらにまた、吸入部区間においてのピンとベーンとの圧
着するまでの所要時間が長い程、ピン貫通孔からピン底
部の環状室7の吐出圧力が吸入部側に漏れることになっ
て悪循環が益々増大することとなる。Furthermore, the longer it takes for the pin and vane to come into contact with each other in the suction section, the more the discharge pressure in the annular chamber 7 at the bottom of the pin leaks from the pin through hole to the suction section, further increasing the vicious cycle. It happens.
この考案は前述の問題点を解決すべくなされたもので、
ベーンとピンとがロータ回転の全区間を通じて常に圧着
し、従って騒音の発生がなくしかも適度のベーン推力を
保持できるようにしたピン押上方式ベーンの高圧ベーン
ポンプを提供することを目的としている。This idea was made to solve the problems mentioned above.
To provide a high-pressure vane pump of a pin push-up type vane in which a vane and a pin are always pressed together throughout the entire range of rotor rotation, thereby eliminating generation of noise and maintaining an appropriate vane thrust.
すなわち本考案の特徴とするところは、ロータのラジア
ル方向の溝にカムリングと摺動する複数のベーンを挿入
し、該ロータ内の各ベーンの底部室に、ロータの回転に
伴って、プレッシャプレートおよびサイドプレートに設
けられた導入ポートから、吐出部区間で吐出圧力を、吸
入部区間で吸入圧力をそれぞれ導入するようにし、さら
に吐出部区間においては前記底部室に導入された吐出圧
力をロータ軸周囲の環状室に導入し且つ吸入部区間では
前記環状室に導入された吐出圧力によって前記底部室内
でベーンに押上げ推力を与えるべくベーン底部に当接す
る貫通孔付きのピンを各底部室と前記環状室間に摺動可
能に配設したピン押上方式ベーンをもつ高圧ベーンポン
プにおいて、ベーン底部のピン当接部分にピンの貫通孔
と連通可能な不透孔を設けると共に該不透孔をベーン内
に貫通して設けられた測道孔を介してベーン両側端面に
開口する該測道孔の両端口に連通させ、前記プレッシャ
プレートとサイドプレートとの一方又は両方に吐出部区
間にて前記ベーン側透孔の端口に吐出圧力を導入する圧
力ポートを設けた点にあり、これによってロータ回転の
全区間にわたってピンがベーン底部に圧着し、環状室へ
はベーン側透孔および不透孔からピン貫通孔を介して吐
出圧の導入が確保され、ピンの衝突音やキャビテーショ
ンによる騒音の発生が防止されると共に環状室から吐出
圧力が吸入部側に漏れることもなくなり、さらにベーン
とサイドプレートおよびプレッシャプレートとの摩耗や
かじりの防止にも効果を発揮するものである。In other words, the feature of the present invention is that a plurality of vanes that slide on the cam ring are inserted into the radial groove of the rotor, and a pressure plate and a pressure plate are inserted into the bottom chamber of each vane in the rotor as the rotor rotates. From the introduction port provided in the side plate, the discharge pressure is introduced into the discharge section and the suction pressure is introduced into the suction section.Furthermore, in the discharge section, the discharge pressure introduced into the bottom chamber is applied to the area around the rotor shaft. A pin with a through hole is inserted into each bottom chamber and the annular chamber, and in the suction section, a pin with a through hole abuts against the bottom of the vane in order to apply upward thrust to the vane in the bottom chamber by the discharge pressure introduced into the annular chamber. In a high-pressure vane pump having a pin push-up type vane that is slidably arranged between chambers, an impermeable hole that can communicate with the through hole of the pin is provided at the pin contacting part of the bottom of the vane, and the impermeable hole is inserted into the vane. The vane side through hole is connected to both end ports of the measuring hole which are opened on both side end surfaces of the vane through the measuring hole which is provided through the measuring hole, and the vane side through hole is provided in one or both of the pressure plate and the side plate in the discharge section. The point is that a pressure port is provided at the end of the hole to introduce discharge pressure, so that the pin is pressed against the bottom of the vane throughout the entire rotation of the rotor, and the annular chamber is connected to the pin through hole from the vane side through hole and the impermeable hole. This ensures that the discharge pressure is introduced through the annular chamber, prevents pin collision noise and cavitation noise, and prevents the discharge pressure from leaking from the annular chamber to the suction section. It is also effective in preventing wear and galling.
つぎに、この考案の実施例を図面によって説明すれば、
まずこの考案の要部をなすベーンを示す第31.3 b
および3c図において、ベーン8の底部9のピン上部が
当接する部分にピン貫通孔6が連通ずる不透孔10を穿
ち、該不透孔をベーン8の両端、すなわちプレッシャプ
レート側端面11およびサイドプレート側端面12を貫
通してベーン内に穿設した測道孔13に接続させてなっ
ている。Next, an example of this invention will be explained using drawings.
First, Section 31.3 b shows the vane that forms the main part of this invention.
3c, an impermeable hole 10 through which the pin through hole 6 communicates is bored in the portion of the bottom portion 9 of the vane 8 where the upper part of the pin contacts, and the impermeable hole is connected to both ends of the vane 8, that is, the pressure plate side end surface 11 and the side surface. It passes through the plate side end surface 12 and is connected to a measuring hole 13 bored inside the vane.
このベーン8をピン押上方式ロータ14に挿入して組立
てた状態をあられす第4図において、吐出部区間に前記
ベーンが位置しているときに測道孔13へ吐出圧力を導
入するように、プレッシャプレート15およびサイドプ
レート16の吐出部区間における前記ベーン側透孔の両
端口の対応部分に夫々吐出圧導入用の圧力ポート17゜
18を削設しである。In FIG. 4, which shows the assembled state in which the vane 8 is inserted into the pin push-up rotor 14, when the vane is located in the discharge section, a discharge pressure is introduced into the gauging hole 13. Pressure ports 17 and 18 for introducing discharge pressure are cut into corresponding portions of both end openings of the vane side through holes in the discharge section of the pressure plate 15 and the side plate 16, respectively.
なお、ピン貫通孔6をもつピン3が前記ロータ内に挿入
されてその貫通孔6の上部開口がベー78の底部9の不
透孔10に連通ずるように当接している。The pin 3 having a pin through hole 6 is inserted into the rotor, and the upper opening of the through hole 6 contacts the impermeable hole 10 in the bottom 9 of the base 78 so as to communicate therewith.
したがって、この考案によれば、吐出部区間において、
サイドプレート15およびプレッシャプレート16の圧
力ポート17.18の吐出圧力が、ベーン側透孔13か
らその不透孔10を経てピン貫通孔6を通過してピン底
部に導かれ、これにより常にピン底部には吐出圧19と
同圧の油圧が作用し、そのために常にピン3がベーン8
に圧着して押し上げることになる。Therefore, according to this invention, in the discharge section,
The discharge pressure from the pressure ports 17, 18 of the side plate 15 and the pressure plate 16 is guided from the vane side through hole 13, through the impermeable hole 10, through the pin through hole 6, and to the pin bottom. The same hydraulic pressure as the discharge pressure 19 acts on the pin 3, so that the pin 3 is always connected to the vane 8.
It will be crimped and pushed up.
また、吸入部区間においては、第5図に示すように、ベ
ーン側透孔13の両端口は両プレー)15.16で閉塞
されるからピン底部からの漏れが防止される。Furthermore, in the suction section, as shown in FIG. 5, both ends of the vane-side through hole 13 are closed by both plates 15 and 16, thereby preventing leakage from the bottom of the pin.
このようにして常時ピンとベーンとは圧着しているので
、従来技術における1シヤリ、ジャリョという衝突によ
る騒音、および1バリ、バリョというキャビテーション
による異常音が全く起ることがない。In this way, the pin and the vane are always crimped together, so that the noise caused by collisions and the abnormal sounds caused by cavitation, which occur in the prior art, do not occur at all.
上述したように、この考案は、騒音の除去を実現できる
上に、従来技術における吸入部区間に達してからピンが
上昇してベーンを押し上げることによる低回転時のベー
ンの出遅れとそれによる効率の低下がなく、吸入部区間
におけるベーン側透孔からの漏れの特性によってベーン
が常時中心寄りに動くからベーンとサイドプレートおよ
びプレッシャプレートとのかじり等が起らずに摩耗が防
止され、また従来技術ではピンとロータ挿入孔との間の
間隙を小さくして漏れ対策を講じていたが本考案ではこ
れも不要であり、従って検査工数をも大幅に減少できる
など、多くの実益をもっている。As mentioned above, this invention not only eliminates noise, but also eliminates the delay in vane startup at low rotation speeds due to the pin rising and pushing up the vane after reaching the suction section in the prior art, and the resulting reduction in efficiency. Since the vane always moves toward the center due to the characteristics of leakage from the vane side through hole in the suction section, galling between the vane and the side plate and pressure plate does not occur, preventing wear. In the previous method, leakage countermeasures were taken by reducing the gap between the pin and the rotor insertion hole, but this is not necessary in the present invention, and therefore the number of inspection steps can be greatly reduced, which has many practical benefits.
第1図は、従来のピン押上方式ベーンとピンとの吐出部
区間における係合状態を示す説明図、第2図は、同じく
吸入部区間における説明図、第3a図は、この考案の実
施例に係るベーンの正面図、第3b、3c図は、夫々前
図のA−A、B−B矢視図、第4図は、この考案の実施
例を示す吐出部区間におけるベーンの摺動位置の状態を
示す説明図、第5図は、同じく吸入部区間におけるベー
ンの摺動位置の状態を示す説明図である。
3・・・・・ゼン、6・・・・・・貫通孔、8・・・・
・・ベーン、10・・・・・・不透孔、13・・・・・
・測道孔、14・・・・・・ロータ、17.18・・・
・・・圧力ポート。Fig. 1 is an explanatory diagram showing the state of engagement between the conventional pin push-up vane and the pin in the discharge section, Fig. 2 is an explanatory diagram also in the suction section, and Fig. 3a is an explanatory diagram showing an embodiment of this invention. The front view of the vane, Figures 3b and 3c are views taken along arrows A-A and B-B in the previous figure, respectively, and Figure 4 shows the sliding position of the vane in the discharge section showing an embodiment of this invention. FIG. 5 is an explanatory diagram showing the state of the sliding position of the vane in the suction section. 3...Zen, 6...Through hole, 8...
... Vane, 10 ... Impermeable hole, 13 ...
・Survey hole, 14... Rotor, 17.18...
...Pressure port.
Claims (1)
のベーンを挿入し、該ロータ内の各ベーンの底部室に、
ロータの回転に伴って、プレッシャプレートおよびサイ
ドプレートに設けられた導入ポートから、吐出部区間で
吐出圧力を吸入部区間で吸入圧力をそれぞれ導入するよ
うにし、さらに吐出部区間においては前記底部室に導入
された吐出圧力をロータ軸周囲の環状室に導入し且つ吸
入部区間では前記環状室に導入された吐出圧力によって
前記底部室内でベーンに押上げ推力を与えるべくベーン
底部に当接する貫通孔付きのピンを各底部室と前記環状
室間に摺動可能に配設したピン押上方式ベーンをもつ高
圧ベーンポンプにおいて、 ベーン底部のピン当接部分にピンの貫通孔と連通可能な
不透孔を設けると共に、該不透孔を、ベーン内に貫通し
て穿たれベーン両側端面にその両端口が開口する測道孔
に連通させ、プレッシャプレートとサイドプレートの一
方または両方に吐出部区間にて前記測道孔の端口に吐出
圧力を導入する圧力ポートを設けたことを特徴とする高
圧ベーンポンプ。[Claim for Utility Model Registration] A plurality of vanes that slide with the cam ring are inserted into the radial groove of the rotor, and in the bottom chamber of each vane in the rotor,
As the rotor rotates, the discharge pressure is introduced into the discharge section and the suction pressure is introduced into the suction section from the introduction ports provided in the pressure plate and the side plate.Furthermore, in the discharge section, the suction pressure is introduced into the bottom chamber. A through hole is provided which contacts the bottom of the vane in order to introduce the discharge pressure introduced into the annular chamber around the rotor shaft, and to apply upward thrust to the vane in the bottom chamber in the suction section by the discharge pressure introduced into the annular chamber. In a high-pressure vane pump having a pin push-up type vane in which a pin is slidably disposed between each bottom chamber and the annular chamber, an impermeable hole that can communicate with the through hole of the pin is provided in the pin contacting part of the bottom of the vane. At the same time, the impermeable hole is made to communicate with a measuring hole that is bored through the vane and has both end openings on both end faces of the vane, and the measuring hole is made to communicate with a measuring hole that is bored through the vane and has both end openings open on both side end faces of the vane, and the measuring hole is formed in one or both of the pressure plate and the side plate in the discharge section. A high-pressure vane pump characterized by having a pressure port for introducing discharge pressure into the end of a passage hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14350378U JPS608158Y2 (en) | 1978-10-20 | 1978-10-20 | high pressure vane pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14350378U JPS608158Y2 (en) | 1978-10-20 | 1978-10-20 | high pressure vane pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5560484U JPS5560484U (en) | 1980-04-24 |
JPS608158Y2 true JPS608158Y2 (en) | 1985-03-20 |
Family
ID=29121244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14350378U Expired JPS608158Y2 (en) | 1978-10-20 | 1978-10-20 | high pressure vane pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS608158Y2 (en) |
-
1978
- 1978-10-20 JP JP14350378U patent/JPS608158Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5560484U (en) | 1980-04-24 |
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