JPS58106291A - Pulsation absorbing duct - Google Patents

Pulsation absorbing duct

Info

Publication number
JPS58106291A
JPS58106291A JP20425481A JP20425481A JPS58106291A JP S58106291 A JPS58106291 A JP S58106291A JP 20425481 A JP20425481 A JP 20425481A JP 20425481 A JP20425481 A JP 20425481A JP S58106291 A JPS58106291 A JP S58106291A
Authority
JP
Japan
Prior art keywords
pressure
inboard
hose
connecting fitting
resistant hose
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
Application number
JP20425481A
Other languages
Japanese (ja)
Inventor
片山 敏幸
松田 真幸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nichirin Rubber Ind Co Ltd
Original Assignee
Nichirin Rubber Ind Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nichirin Rubber Ind Co Ltd filed Critical Nichirin Rubber Ind Co Ltd
Priority to JP20425481A priority Critical patent/JPS58106291A/en
Publication of JPS58106291A publication Critical patent/JPS58106291A/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 に詳しくは、Wk動圧を伴なう油圧ポンプと、油圧ボン
プによって発生される圧力油により作動せられる従防装
置、たとえばパワステアリング装置におけるギヤボック
スなどとの聞に接続され、圧力油の脈動圧を好適に@収
し、ポンプで発生する騒音を排除しりる脈動吸収管路に
関する。
[Detailed Description of the Invention] In detail, there is a difference between a hydraulic pump with Wk dynamic pressure and a slave device operated by the pressure oil generated by the hydraulic pump, such as a gear box in a power steering device. The present invention relates to a pulsation absorbing conduit which is connected and suitably collects the pulsating pressure of pressure oil and eliminates the noise generated by the pump.

従来よプペーンポンプなどの容積型ポンプから吐出され
る圧力油は、ポンプの回転数およびベーンなどの羽根枚
歇Kw5じた脈動圧を伴なりてお夛、該脈動圧が騒音の
原因となるという間lIがあ6゜ 叙上の問題を解決するため、九とえばホース自体を弾性
に富む材料で製作し、発生する脈動圧tホースの部分的
な膨張で緩和する方法、あ4Vsはホース内WIkKオ
リフィス部材を設けることKよシ服前のエネルギ管吸収
するとともに、m動圧の伝達1妨げる方決などが提案さ
れているが、いずれも騒音管抑える効果が充分でなく、
後者に6りてはエネルギの消耗が大きいという欠点もめ
る。さらに本出験人はホース内部にステンレス製または
機翫製などのスパイラル管や、樹脂チューブ會神大して
ポンプ側の接続金具に1i!IL、圧力流体tスパイラ
ル管などの内部に4遍せしめ、ホースとスパイラル管の
間の空間を緩衝突間として利用する方法などt提案して
イル(実開ws54−1658294ji験11fi 
56−1926039)。
Conventionally, the pressure oil discharged from a positive displacement pump such as a pump pump is accompanied by pulsating pressure due to the rotation speed of the pump and the number of blades such as vanes, and this pulsating pressure causes noise. In order to solve the above problems, for example, the hose itself is made of a highly elastic material, and the generated pulsating pressure t is alleviated by partial expansion of the hose. Proposed methods include providing an orifice member to absorb the energy pipes before the pipes and to block the transmission of dynamic pressure, but none of these methods have a sufficient effect of suppressing the noise pipes.
The latter also has the drawback of consuming a large amount of energy. In addition, this tester installed a spiral tube made of stainless steel or machine rod inside the hose, a resin tube, and a connecting fitting on the pump side. We have proposed a method of installing IL, pressure fluid four times inside a spiral pipe, etc., and using the space between the hose and the spiral pipe as a gentle collision gap (utility application WS54-1658294JI Experiment 11fi).
56-1926039).

ところがこれらのものはホース内部で111111圧會
吸収−させることができるためきわめてコンノイクトに
構成することができ、しかも安価であるという利点を有
する反面、ポンプ出口の1llI圧に対しホース出口の
脈動圧が20〜40% であシ、はぼ完全に@収するま
でにはいたらず、車などの騒音防止に対しては充分なも
のではなかった。
However, these devices have the advantage of being able to absorb 111111 pressure inside the hose, so they can be constructed in a very connoisseur manner and are inexpensive, but on the other hand, the pulsating pressure at the hose outlet is However, it was not possible to completely eliminate the noise by 20 to 40%, and it was not sufficient to prevent noise from cars and the like.

そこで本発明者らは畝上の問題會−解決し、脈動圧をほ
ぼ完全に@収しつる油圧管路を##供すべく鋭意研究を
重ねた結果、ポンプから吐出された圧力油をアキュムレ
ータを単独に採用した、あるいはアキュムレータとスパ
イラル管と1併用した脈動吸収管路に挿通させることK
よシ厭動圧のほとんどを吸収することができるという新
たな事*1見出し、本発明を完成するにいたった。
Therefore, the inventors of the present invention solved the problem of the ridges and conducted extensive research to provide a hydraulic pipeline that can almost completely collect the pulsating pressure. Can be inserted into a pulsation absorbing conduit used alone or in combination with an accumulator and a spiral tube.
The new discovery of being able to absorb most of the negative dynamic pressure*1 led to the completion of the present invention.

しかして本発明は脈動圧を伴なう油圧ポンプの吐出口に
一端が接続される第1の接続金具と、該第1の接続金具
の他端に接続されるインボートおよび該インボートに隣
接するアウトボートとt有し管路から直角方向に配Il
される容器と、該容器内に収容され圧力ガスが封入され
てなるプラダと、前記アクトボートに一端がIi!1l
IIFされる可撓性耐圧ホースと、該耐圧ホースの両端
に一端が接続され他端が従#装置の供給口に接続される
182の接続金具とからなる81#吸収管路t−要旨°
とするものである。
Therefore, the present invention includes a first connecting fitting having one end connected to a discharge port of a hydraulic pump that generates pulsating pressure, an inboard connected to the other end of the first connecting fitting, and an inboard adjacent to the inboard. It has an outboard and t and is arranged perpendicularly from the pipe.
one end of the act boat is Ii! 1l
An 81# absorption pipe line consisting of a flexible pressure-resistant hose that is IIFed and 182 connecting fittings, one end of which is connected to both ends of the pressure-resistant hose and the other end connected to the supply port of a slave device.
That is.

さらに本発明は前記ik動吸収管路の構成をすべて有し
、かつ前記アクトボートの端部にニップルが設けられ、
該ニップルに一端が固着されるスパイラル管を有してお
シ、前記可撓性耐圧ホースの一端がニップルの外周(1
看されてなるFIt前吸収管路をも要旨とするものであ
る。
Furthermore, the present invention has all the configurations of the ik dynamic absorption pipe, and a nipple is provided at the end of the act boat,
The flexible pressure hose has a spiral tube with one end fixed to the nipple, and one end of the flexible pressure-resistant hose is connected to the outer periphery (1) of the nipple.
The gist is also the pre-FIt absorption line which is being looked after.

つぎKaA面を用いて本発明の脈動吸収管路をfl;L
明する。
Next, the pulsation absorbing conduit of the present invention is constructed using the KaA surface.
I will clarify.

第1図は本発明の脈動吸収管路の一実施例を示す概略正
面図、第2図は本発明にかかわる容器およびプラダの拡
大断面図、第3図は本発明の[1111!吸収管路の他
の実施例を示す一部切欠正山図、第4図は本発明の脈動
吸収管路の効果を測定するための測定amのブロック図
、第5図は脈動減衰度曲線である。
FIG. 1 is a schematic front view showing an embodiment of the pulsation absorbing conduit of the present invention, FIG. 2 is an enlarged sectional view of a container and Prada according to the present invention, and FIG. 3 is a [1111!] of the present invention. Fig. 4 is a block diagram of the measurement am for measuring the effect of the pulsation absorption pipe of the present invention, and Fig. 5 is a pulsation attenuation curve. be.

第1図に示されるように本発明の脈動吸収管路は&防圧
を伴なう油圧ポンプ(1)の吐出口(1m)に一端(2
a)が接続される第1の接続金具(2)と、該第1の接
続金具(2)の他端(2b) K接続されるインポー)
 (3m)および該インボート(3b)K隣接するアウ
トボート(3b)とを有し管路から直角方向に配置され
る容@(3)と、該容器内に収容される圧力ガス(4)
が封入されてなるプラダ(5)と、前記アクトボー)(
3b)K一端(6m)が固着される可撓性耐圧ホース(
6)と、該耐圧ホース(6)の他端(6b)に一端(7
a)が接続され他端(7b)が従前装置どし□てのパフ
ステアリング用ギヤボックス(8)の供給口(8a)K
接続される第2の接続金具(7)とからなる。前記容器
(3)に収容されているプラダ(6)は、第2図に示さ
れるようにブラダ内に圧力ガスを供給しやすくするため
供給弁(3c) k含む容器の一部に対して開口してい
るのが好ましい。このような容器およびプラダとしては
市販されてぃるアキュムレータ、たとえば日本アキュム
レータ株式会社製のプリーツブラダ形アキュムレー・り
などが好適に採用される。
As shown in Fig. 1, the pulsation absorbing pipe line of the present invention has one end (2
a) is connected to the first connecting fitting (2), and the other end (2b) of the first connecting fitting (2) (the import to be connected)
(3m) and the inboard (3b) and the adjacent outboard (3b), and a container (3) disposed perpendicularly to the conduit, and a pressurized gas (4) accommodated in the container.
Prada (5) which is enclosed with
3b) A flexible pressure-resistant hose (6m) to which one end (6m) of K is fixed.
6) and one end (7) at the other end (6b) of the pressure hose (6).
a) is connected and the other end (7b) is the supply port (8a) K of the puff steering gear box (8), which is the same as the previous device.
and a second connecting fitting (7) to be connected. The bladder (6) housed in the container (3) is opened to a part of the container including a supply valve (3c) to facilitate the supply of pressure gas into the bladder, as shown in FIG. It is preferable to do so. Commercially available accumulators, such as pleated bladder type accumulators manufactured by Nippon Accumulator Co., Ltd., are preferably used as such containers and Pradas.

畝上のごとく構成される管路の作用を説明する。油圧ポ
ンプ(υで高圧にされ九圧力油は吐出口(1m)から流
出し、インボート(3i) を通じて直角に流れの方向
がかえられ、容器(3)の内部に導かれる。そのとき#
L動波も圧力油の流れに伴ない容器(3)の丙sK導か
れ、プラグ(5)にぶつかシ反射するが、圧力ガス(4
)を封入しているプラグは弾性がある九め反射波はきわ
めて減衰されており、#l1lFl波は大きく吸収され
る。さらにプラグで減衰された脈動波は容器とプラグの
闇で減Jft繰りかえし、アクトボート(3b)から耐
圧ホース(6)へ流出する圧力油に伴なって移動する。
The action of a conduit constructed like a ridge will be explained. The pressure oil is made high pressure with the hydraulic pump (υ) and flows out from the discharge port (1 m), the flow direction is changed at right angles through the inboard (3i), and it is guided inside the container (3).At that time, #
The L motion wave is also guided by the flow of pressure oil into the container (3) and is reflected when it hits the plug (5).
) is elastic and the reflected waves are extremely attenuated, and the #l1lFl wave is largely absorbed. Furthermore, the pulsating wave attenuated by the plug is repeatedly reduced in Jft due to the darkness between the container and the plug, and moves along with the pressure oil flowing out from the act boat (3b) to the pressure hose (6).

、圧力油はさらに耐圧ホース(6)内を通過し、ギヤボ
ックス(旬に流入するが、耐圧ホースが可撓性を有して
iるため、耐圧ホースの部分的膨張によりIi動波が吸
収されギヤボックスにいたるときはきわめて微弱になっ
ている。
, the pressure oil further passes through the pressure hose (6) and flows into the gearbox, but since the pressure hose is flexible, the dynamic waves are absorbed by partial expansion of the pressure hose. When it reaches the gearbox, it is extremely weak.

りぎに第3図に示されるように管路t−構成するときは
さらに脈動吸収効果を高めることがてきる。すなわち第
3図に示される管路は第1図に示される管路のすべてを
有し、さらにアクトボート(13b)の一端にニップル
(9)が形成され、該ニップル(9)にスパイラル管Q
Oの一端が固着され、可撓性耐圧ホース(6)の一端(
61)がニップル(9)の外周に固着される。
When the pipe is constructed as shown in FIG. 3, the pulsation absorption effect can be further enhanced. That is, the conduit shown in FIG. 3 has all of the conduit shown in FIG.
One end of O is fixed, and one end of the flexible pressure-resistant hose (6) (
61) is fixed to the outer periphery of the nipple (9).

畝上のごとく構成される管路では容I!(3)か2ら移
動した脈動波がスパイラルチューブQOによりさらに吸
収され、ギヤボックスではほとんど脈WIIJ#t、が
吸収されている。
In a conduit constructed like a ridge, it is very difficult! The pulsating waves transferred from (3) and 2 are further absorbed by the spiral tube QO, and most of the pulsating waves WIIJ#t are absorbed by the gear box.

つぎに実施例をあけて本発明の服wJ吸収管路の脈動吸
収効果を説明する。
Next, the pulsation absorbing effect of the clothing wJ absorbing conduit of the present invention will be explained with reference to Examples.

実施例1 容器およびプラグとして日本アキュムレータ株式会社製
のプリーツブラダ形アキュムレータ(形番: N21O
−01D)を使用し、ホースとして外径21mm、内径
10 mms長さ400mmのナイロンブレードホース
を使用し、これら1第1図のごとく配管接続し試料をえ
た〇 実施例2 実施例1と一様の構成の試料に対し、外径6.4mm、
内径4 、1 mm、長さ200mm のスパイクル管
會鵠3図のごとくニップル(9)の−11’l!lに固
着し。
Example 1 A pleated bladder type accumulator manufactured by Nippon Accumulator Co., Ltd. (model number: N21O) was used as the container and plug.
A nylon braided hose with an outer diameter of 21 mm, an inner diameter of 10 mm, and a length of 400 mm was used as a hose, and the pipes were connected as shown in Figure 1 to obtain a sample. Example 2 Same as Example 1. For the sample with the configuration, the outer diameter is 6.4 mm,
A spikele tube with an inner diameter of 4.1 mm and a length of 200 mm is -11'l of the nipple (9) as shown in Figure 3. It sticks to l.

試料をえた。I got a sample.

比較例1 実施例1と一様のナイロングレードホースの陶嘲K11
llの接続金具および第2の接続金具をに!i1着し、
試料・とじた。
Comparative Example 1 Same nylon grade hose as Example 1, Tomo K11
ll connection fittings and the second connection fittings! Arrived i1,
Sample bound.

比較例2 比較例1の試料に対し、ホース内部に内径4mmb&さ
40mm  のオリフィス部材を挿入し、ホース外部に
挿通した保持部材とともにかしめることによシ固着し、
試料とした。
Comparative Example 2 For the sample of Comparative Example 1, an orifice member with an inner diameter of 4 mm and a length of 40 mm was inserted into the inside of the hose, and fixed by caulking with a holding member inserted into the outside of the hose.
It was used as a sample.

畝上のごとく構成される4種類の試料を第4図に示され
る測定装置により脈動吸収効果を測定した。測定fie
Wはモータ曽により回転されるポンプ(至)(10枚羽
根のベーンポンプ)の吐出口と測定ブロック(6)を試
料G)で接続し、さらにギヤボックスU)K連通し、ギ
ヤボックス6)からポンプ?)がとルクけられているタ
ンク■へリターンホース@)Kよシ戻されると−う閉ル
ープの管路構成とした。このような管1%に対し、圧力
変換器頓をボンダ0吐出口直後、および試料の直後に配
置した。それらの素足位置の鰍動圧會電気信@に変換し
たのち、チャニジアンプ(CAI入(CA2)で増幅し
、2チャンネルFFTアナラィデ便)およびx−Yレコ
ーダoO′″C分析、記録した。
The pulsation absorption effect of four types of samples configured like ridges was measured using the measuring device shown in FIG. measurement fie
W connects the discharge port of the pump (to) (10-blade vane pump) rotated by the motor (10-blade vane pump) and the measurement block (6) with the sample G), and also communicates with the gearbox U)K, and from the gearbox 6). pump? The return hose to the tank ■ where ) is being discharged @ ) is returned from K to a closed loop pipeline configuration. For such a tube 1%, a pressure transducer was placed immediately after the bonder 0 outlet and immediately after the sample. After converting the bare foot position into an electromagnetic signal, it was analyzed and recorded using a channel amplifier (amplified with CAI input (CA2) and 2-channel FFT analysis) and an x-Y recorder.

このときの素足条件はポンプ回転数900rpms負荷
圧力40Ky/cm、油漏80°Cである。
The bare foot conditions at this time were a pump rotation speed of 900 rpm, a load pressure of 40 Ky/cm, and an oil leak of 80°C.

実施例および比較例の圧力脈動および圧力脈動から求め
た脈動減衰率を下表に示す。下表においてホース出口で
の圧力脈動はポンプ吐出口での圧力脈wJを100とし
たばあいの比率を示す。
The table below shows the pressure pulsations and pulsation attenuation rates determined from the pressure pulsations in Examples and Comparative Examples. In the table below, the pressure pulsation at the hose outlet shows the ratio when the pressure pulsation wJ at the pump discharge port is taken as 100.

またw4波款分析結果による腋紡減衰度管第5図に示す
In addition, the axillary spin attenuation curve based on the W4 wave analysis results is shown in Figure 5.

叡上の貴およびグラフから、実施例1および実施例2の
試料については、比較例1および2に比してそれぞれ格
段に脈動吸収効果が向上しているのがわかる。とくに第
5図から、すべてのw4波数帯で実施例1および2によ
る減衰効果が飄著であることがわかる。、また夷i11
例2の試料が実施例1のものに比して、より好ましいも
のであることもわかる。また本発明の管路により夷WA
Kポンプの騒音を皆無とする仁とができた。
It can be seen from the above graph that the pulsation absorption effect of the samples of Example 1 and Example 2 is significantly improved compared to Comparative Examples 1 and 2, respectively. In particular, it can be seen from FIG. 5 that the attenuation effect of Examples 1 and 2 is noticeable in all the w4 wavenumber bands. , also i11
It can also be seen that the sample of Example 2 is more favorable than that of Example 1. Furthermore, the conduit of the present invention allows for
I was able to completely eliminate the noise from the K pump.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明のlll動吸収管路の−91,施例を示
す概略正面図、第2図は本発明Kかかわる容器およびブ
ラダの拡大断面図、第3図は本発明の脈動吸収管路の他
の実施例を示す一部切大正如図、第4図は本発明の脈動
吸収管路の効果【g@定するための測定装置のブロック
図、第5図は第4図に示す測定装置によシえられた厭動
絨衰度曲線である。 (図面の主要符8) (1):油圧ボンダ (2):第1の接続金具 (3):容器 (3a) :インボート (3bλ(13b) :アクトボート (4):圧力ガス (5)ニブ2ダ (6):可撓性ホース (7):第2の接続金具 (8):作動装置 (9):ニツプル αQ:スバイラル管
Fig. 1 is a schematic front view showing a -91 embodiment of the pulsation absorption pipe of the present invention, Fig. 2 is an enlarged sectional view of a container and bladder related to the present invention K, and Fig. 3 is a pulsation absorption pipe of the present invention. Fig. 4 is a block diagram of a measuring device for determining the effect of the pulsation absorbing pipe of the present invention, and Fig. 5 is shown in Fig. 4. This is a repulsive carpet loss curve obtained by a measuring device. (Major mark 8 in the drawing) (1): Hydraulic bonder (2): First connection fitting (3): Container (3a): Inboard (3bλ (13b): Actoboat (4): Pressure gas (5) Nib 2 da (6): Flexible hose (7): Second connection fitting (8): Actuating device (9): Nipple αQ: Spherical tube

Claims (1)

【特許請求の範囲】 l 脈動圧を伴なう圧力油を送出する油圧ポンプの吐出
口に一端が接続される第1・の接続金具と、該第1の接
続金具の他嶋KWk続されるインボートおよび該インボ
ートに隣接するアクトボートとを有し管路から直角方向
に配置される容器と、該容器内に収容され圧力ガスが封
入されてなるプラダと、前記アクトボートに一端がl1
IWされる可撓性耐圧ホースと、該耐圧ホースの他端に
一端が接続され他端が従防装−の供給口に接続される第
2の接続金具とからなる脈動吸収管路。 続金具の他端Vc!Ilt続されるインボートおよび該
インボートに隣接するアクトボートを有し電路から直角
方向に配置される!Il器と、該容器内に収容され圧力
ガスが封入されてなるプラダと、前記アクトボートの端
11に#にけられるニップルに一端が固着されるスパイ
ラル管と、一端が前記ニップルの外周に固着される可撓
性耐圧ホースと、該耐圧ホースの他端に一端が接続され
他端が従動装置の供給口に接続される第2の接続金具と
からなる歇1m吸収管路。
[Scope of Claims] l A first connecting fitting having one end connected to a discharge port of a hydraulic pump that delivers pressure oil with pulsating pressure; a container having an inboard and an actboat adjacent to the inboard and disposed in a direction perpendicular to the pipe; a prada housed in the container and filled with pressure gas;
A pulsation absorbing conduit consisting of a flexible pressure-resistant hose subjected to IW, and a second connecting fitting having one end connected to the other end of the pressure-resistant hose and the other end connected to a supply port of a secondary protection device. The other end of the connecting fitting Vc! It has an inboard connected to the inboard and an act port adjacent to the inboard and is arranged perpendicularly from the electrical path! a spiral tube having one end fixed to a nipple cut into the end 11 of the act boat, and one end fixed to the outer periphery of the nipple. A 1 m long absorption pipe line consisting of a flexible pressure-resistant hose, and a second connecting fitting, one end of which is connected to the other end of the pressure-resistant hose, and the other end of which is connected to a supply port of a driven device.
JP20425481A 1981-12-16 1981-12-16 Pulsation absorbing duct Pending JPS58106291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20425481A JPS58106291A (en) 1981-12-16 1981-12-16 Pulsation absorbing duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20425481A JPS58106291A (en) 1981-12-16 1981-12-16 Pulsation absorbing duct

Publications (1)

Publication Number Publication Date
JPS58106291A true JPS58106291A (en) 1983-06-24

Family

ID=16487409

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20425481A Pending JPS58106291A (en) 1981-12-16 1981-12-16 Pulsation absorbing duct

Country Status (1)

Country Link
JP (1) JPS58106291A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094796A (en) * 2008-10-20 2010-04-30 Mitsubishi Motors Corp Tire gripping apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618496B2 (en) * 1978-10-26 1981-04-30
JPS5618870B2 (en) * 1975-04-09 1981-05-01

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5618870B2 (en) * 1975-04-09 1981-05-01
JPS5618496B2 (en) * 1978-10-26 1981-04-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010094796A (en) * 2008-10-20 2010-04-30 Mitsubishi Motors Corp Tire gripping apparatus

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