JPS6114647Y2 - - Google Patents
Info
- Publication number
- JPS6114647Y2 JPS6114647Y2 JP8922980U JP8922980U JPS6114647Y2 JP S6114647 Y2 JPS6114647 Y2 JP S6114647Y2 JP 8922980 U JP8922980 U JP 8922980U JP 8922980 U JP8922980 U JP 8922980U JP S6114647 Y2 JPS6114647 Y2 JP S6114647Y2
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- passage
- pressure
- hydraulic pressure
- chamber
- 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
- 241000234435 Lilium Species 0.000 claims description 13
- 230000010349 pulsation Effects 0.000 claims description 11
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Servomotors (AREA)
- Fluid-Pressure Circuits (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は油圧の脈動を低減する圧力脈動低減装
置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pressure pulsation reducing device that reduces hydraulic pulsation.
油圧作動機器へ供給する油圧を所望の値に調整
するための油圧調整装置は、従来、油圧源と油圧
作動機器とを連動する油圧供給通路に弁体を設
け、同弁体をパルス状の断続電流が供給されるソ
レノイドによつて開閉制御するとともに、上記断
続電流の単位周期当たりの非通電時間と通電時間
との割合を変化させることによつて上記弁体と油
圧作動機器との間の油圧、即ち上記油圧作動機器
へ供給される油圧を変化せしめるように構成され
ていた。
Conventionally, a hydraulic adjustment device for adjusting the hydraulic pressure supplied to a hydraulically operated device to a desired value has a valve body installed in a hydraulic pressure supply passage that connects a hydraulic power source and a hydraulically operated device, and the valve body is connected in a pulsed manner. The opening/closing is controlled by a solenoid to which current is supplied, and the hydraulic pressure between the valve body and the hydraulically operated device is controlled by changing the ratio of the non-energizing time to the energizing time per unit cycle of the intermittent current. In other words, the oil pressure supplied to the hydraulically operated equipment is changed.
しかし、上記構成のものは、油圧作動機器へ供
給される油圧に上記弁体の開閉作動に伴う脈動が
発生してしまい、油圧作動機器が微振動を伴つて
作動するため安定的な作動が得られないという不
具合があつた。
However, with the above configuration, pulsations occur in the hydraulic pressure supplied to the hydraulically operated equipment due to the opening and closing operations of the valve body, and the hydraulically operated equipment operates with slight vibrations, making it difficult to operate stably. I had a problem where I couldn't do it.
本考案は上記不具合を解消するもので、油圧源
に連通された油圧供給通路と、油圧作動機器に連
通された油圧作動通路と、上記油圧作動通路を大
気開放する大気開放通路と、上記油圧作動通路を
上記油圧供給通路または大気開放通路の何れか一
方へ選択的に連通させる弁体と、断続電流が供給
されることにより同弁体を切り換え制御するソレ
ノイドとを有する制御弁装置、上記ソレノイドに
上記断続電流を供給する制御装置を備えた油圧調
整装置において、上記油圧供給通路又は大気開放
通路の何れか一方に設けられたベンチユリ部、同
ベンチユリ部に連通する第１室と上記油圧作動通
路に連通する第２室と両室を隔絶する圧力応動壁
とを有する圧力応動装置を有することを特徴とす
る圧力脈動低減装置を要旨とするものである。
The present invention solves the above-mentioned problems, and includes a hydraulic supply passage communicating with a hydraulic power source, a hydraulic operation passage communicating with a hydraulically operated device, an atmosphere release passage that opens the hydraulic operation passage to the atmosphere, and a hydraulic pressure supply passage communicating with a hydraulic pressure source. A control valve device comprising a valve body that selectively connects a passage to either the hydraulic pressure supply passage or the atmospheric release passage, and a solenoid that switches and controls the valve body when an intermittent current is supplied to the solenoid. In the hydraulic adjustment device equipped with a control device that supplies the intermittent current, a bench lily portion provided in either the hydraulic pressure supply passage or the atmospheric release passage, a first chamber communicating with the bench lily portion and the hydraulic operating passage. The gist of the present invention is a pressure pulsation reducing device characterized by having a pressure responsive device having a communicating second chamber and a pressure responsive wall separating both chambers.
上記構成によれば、弁体が断続電流によつて選
択的に切り換え作動されることにより発生する油
圧供給通路内の圧力脈動と油圧作動通路内の圧力
脈動とが圧力応動装置の作用により相殺されるの
で、油圧作動通路内の油圧の脈動が低減され、油
圧作動機器の作動が安定する。
According to the above configuration, the pressure pulsations in the hydraulic supply passage and the pressure pulsations in the hydraulic operation passage, which are generated when the valve body is selectively switched and operated by the intermittent current, are offset by the action of the pressure response device. Therefore, the pulsation of the hydraulic pressure in the hydraulic passage is reduced, and the operation of the hydraulically operated equipment is stabilized.
次に、本考案の一実施例を第１図に沿つて説明
する。
Next, an embodiment of the present invention will be described with reference to FIG.
２はオイルパン、４は同オイルパン２内のオイ
ルを油圧供給通路６に圧送する油圧ポンプ、８は
上記油圧供給通路６内の油圧を一定に保持する調
整弁、１０は上記油圧供給通路６に設けられた制
御弁装置、１２は同制御弁装置１０と油圧作動機
器１４とに連動する油圧作動通路、１６は上記制
御弁装置１０を切り換え制御する制御装置、１８
は電源である。 2 is an oil pan; 4 is a hydraulic pump that pumps the oil in the oil pan 2 to the hydraulic pressure supply passage 6; 8 is a regulating valve that maintains the oil pressure in the hydraulic pressure supply passage 6 at a constant level; 10 is the hydraulic pressure supply passage 6; 12 is a hydraulic passage that is linked to the control valve device 10 and the hydraulically actuated equipment 14; 16 is a control device that switches and controls the control valve device 10; 18;
is the power source.
制御弁装置１０は、ハウジング２０内に形成さ
れた油圧供給室２１に設けられた弁体２２、同弁
体２２の位置をスプリング２４の付勢力と協働し
て連続的に切り換えるソレノイド２６、上記油圧
供給通路６と油圧供給室２１と連通するとともに
弁体２２に開閉される油圧供給ポート２８、同油
圧供給ポート２８の弁体２２上流の配設されたベ
ンチユリ部材３０、上記油圧供給室２１と油圧作
動通路１２とに連通する油圧作動ポート３２、油
圧供給室２１とオイルパン２とに連通するととも
に弁体２２に開閉される大気開放ポート３４を有
している。 The control valve device 10 includes a valve body 22 provided in a hydraulic pressure supply chamber 21 formed in a housing 20, a solenoid 26 that continuously switches the position of the valve body 22 in cooperation with a biasing force of a spring 24, and the above-described components. A hydraulic pressure supply port 28 that communicates with the hydraulic pressure supply passage 6 and the hydraulic pressure supply chamber 21 and is opened and closed by the valve body 22, a bench lily member 30 disposed upstream of the valve body 22 of the hydraulic pressure supply port 28, and the hydraulic pressure supply chamber 21 and It has a hydraulic operation port 32 that communicates with the hydraulic pressure passage 12, and an atmosphere release port 34 that communicates with the oil pressure supply chamber 21 and the oil pan 2 and is opened and closed by the valve body 22.
３６は圧力応動装置で、油圧供給ポート２８に
設けられたベンチユリ部材３０における圧力が圧
力通路３８を介して供給される第１室、油圧作動
ポート３２のオリフイス４２上流側の圧力が圧力
通路４４を介して供給される第２室４６、上記第
１室４０及び第２室４６を隔絶する圧力応動壁で
あるところのダイヤフラム４８、第２室４６に圧
縮配設され上記ダイヤフラム４８を第１室４０方
向へ付勢するスプリング５０を有している。 Reference numeral 36 denotes a pressure response device, in which the pressure in the bench lily member 30 provided in the hydraulic supply port 28 is supplied to the first chamber via the pressure passage 38, and the pressure upstream of the orifice 42 of the hydraulic operation port 32 is supplied to the pressure passage 44. A diaphragm 48 , which is a pressure-responsive wall that separates the first chamber 40 and the second chamber 46 , is compressed and disposed in the second chamber 46 and connects the diaphragm 48 to the first chamber 40 . It has a spring 50 that biases in the direction.
制御装置１６は、ソレノイド２６に断続電流を
供給して弁体２２を切り換え制御するとともに、
パルス状の断続電流の単位周期当たりの非通電時
間と通電時間との割合を変化させることにより油
圧作動通路１２内の油圧を変化させるものであ
る。 The control device 16 supplies intermittent current to the solenoid 26 to switch and control the valve body 22, and
The hydraulic pressure in the hydraulic pressure passage 12 is changed by changing the ratio of the non-energizing time to the energizing time per unit cycle of the pulsed intermittent current.
上記構成に基づく本実施例の作動を以下説明す
る。 The operation of this embodiment based on the above configuration will be explained below.
制御装置１６によつて断続電流がソレノイド２
６に供給されると、弁体２２はスプリング２４の
付勢力に抗して図中左方へ移動し、且つ大気開放
ポート３４を閉塞する。このとき、油圧供給通路
６内の油圧は油圧供給ポート２８、ベンチユリ部
材３０、油圧供給室２１、及び油圧作動ポート３
２を介して油圧作動機器１４へ供給される。 The control device 16 causes an intermittent current to be applied to the solenoid 2.
6, the valve body 22 moves to the left in the figure against the biasing force of the spring 24 and closes the atmosphere release port 34. At this time, the oil pressure in the oil pressure supply passage 6 is applied to the oil pressure supply port 28, the bench lily member 30, the oil pressure supply chamber 21, and the oil pressure operation port 3.
2 to the hydraulically operated equipment 14.
断続電流の供給が停止されると、弁体２２はス
プリング２４の付勢力によつて、図示位置に復帰
保持され、油圧供給室２１は大気開放ポート３４
を介して大気開放され、油圧作動機器１４へ連通
する油圧作動ポート３２内の油圧が低下する。 When the supply of intermittent current is stopped, the valve body 22 is returned to the illustrated position by the biasing force of the spring 24, and the hydraulic pressure supply chamber 21 is opened to the atmosphere opening port 34.
The hydraulic pressure in the hydraulically operated port 32 communicating with the hydraulically operated device 14 decreases.
油圧作動ポート３２内の油圧は、上記断続電流
の単位周期当たりの通電時間が長くなると大気圧
まで低下せず、断続電流の上記通電時間に応じた
値に保持される。 The oil pressure in the hydraulic operation port 32 does not decrease to atmospheric pressure as the energization time per unit period of the intermittent current becomes longer, but is maintained at a value corresponding to the energization time of the intermittent current.
上記圧力応動装置３６の作動は次の通りであ
る。 The operation of the pressure responsive device 36 is as follows.
また、弁体２２が油圧供給ポート２８を開く
と、ベンチユリ部材３０を通過するオイルの流速
によつてベンチユリ部材３０における圧力が低下
するとともに油圧作動ポート３２内の圧力が上昇
するが、上記ベンチユリ部材３０における低下し
た圧力が第１室４０へ伝達されてダイヤフム４８
を図中上方へ付勢し、第２室４６内の圧力は上記
ダイヤフム４８の変位により低下する。上記第２
室４６内の低下した圧力は油圧作動ポート３２へ
伝達され、弁体２２が開作動による油圧作動ポー
ト３２内の上昇した油圧と相殺するので、油圧作
動ポート３２内の油圧の脈動を低減せしめる。 Further, when the valve body 22 opens the hydraulic pressure supply port 28, the pressure in the bench lily member 30 decreases and the pressure in the hydraulic operation port 32 increases due to the flow rate of oil passing through the bench lily member 30. The reduced pressure at 30 is transferred to the first chamber 40 and the diaphragm 48
is urged upward in the figure, and the pressure inside the second chamber 46 is reduced by the displacement of the diaphragm 48. 2nd above
The reduced pressure in the chamber 46 is transmitted to the hydraulically operated port 32, and the valve body 22 offsets the increased hydraulic pressure in the hydraulically operated port 32 due to the opening operation, thereby reducing the pulsation of the hydraulic pressure in the hydraulically operated port 32.
また、弁体２２が油圧供給ポート２８を閉じる
と油圧作動ポート３２内の圧力が急激に低下する
が、油圧供給ポート２８のベンチユリ部材３０に
おける圧力が急激に上昇し、同圧力が上記圧力応
動装置３６の第１室４０、ダイヤフラム４８、及
び第２室４６を介して上記油圧作動ポート３２に
伝達されて油圧作動ポート３２内の圧力低下を補
うので、同ポート３２内の油圧低下を低減でき
る。 Further, when the valve body 22 closes the hydraulic supply port 28, the pressure in the hydraulic operation port 32 decreases rapidly, but the pressure in the bench lily member 30 of the hydraulic supply port 28 increases rapidly, and the same pressure is applied to the pressure responsive device. The pressure is transmitted to the hydraulically operated port 32 through the first chamber 40, the diaphragm 48, and the second chamber 46 of 36, and compensates for the pressure drop within the hydraulically operated port 32, so that the hydraulic pressure drop within the port 32 can be reduced.
従つて、本実施例によれば、パルス状の断続電
流によつて切り換え作動される弁体２２の作動に
かかわらず、油圧作動ポート３２内の圧力脈動を
低減することができるので、油圧作動機器１４の
作動を安定させて信頼性を向上するとともに、油
圧作動機器１４の耐久性も向上するという効果を
奏する。 Therefore, according to this embodiment, regardless of the operation of the valve body 22 which is switched and operated by pulsed intermittent current, the pressure pulsations in the hydraulically operated port 32 can be reduced, so that the hydraulically operated equipment This has the effect of stabilizing the operation of the hydraulic equipment 14 and improving its reliability, as well as improving the durability of the hydraulically operated equipment 14.
なお、上記実施例における圧力応動装置３６
は、第１室４０を油圧供給ポート２８のベンチユ
リ部材３０に連通し、第２室４６を油圧作動ポー
ト３２に連通したが、二点鎖線で示すように圧力
応動装置３６′の第１室４０′を圧力通路３８′を
介して大気開放ポート３４に設けられたベンチユ
リ部材３０′に連通し、第２室４６′を圧力通路４
４′を介して油圧作動ポート３２に連通し、スプ
リング５０′を第１室４０′に配置してダイヤフラ
ム４８′を付勢するように構成しても上記実施例
と略同様の作用効果を奏する。 Note that the pressure response device 36 in the above embodiment
In the above, the first chamber 40 is connected to the bench lily member 30 of the hydraulic pressure supply port 28, and the second chamber 46 is connected to the hydraulic operation port 32. ' is connected to the bench lily member 30' provided in the atmosphere release port 34 via the pressure passage 38', and the second chamber 46' is connected to the pressure passage 4.
4', and a spring 50' is disposed in the first chamber 40' to bias the diaphragm 48', substantially the same effect as in the above embodiment can be obtained. .
本考案によれば、油圧作動機器へ供給される油
圧の脈動が低減されるので、上記油圧作動機器の
作動が安定するという効果を奏する。
According to the present invention, since the pulsation of the hydraulic pressure supplied to the hydraulically operated equipment is reduced, the operation of the hydraulically operated equipment is stabilized.
第１図は本考案の一実施例の構成を示す概略説
明図である。
４……油圧ポンプ、６……油圧供給通路、１０
……制御弁装置、１２……油圧作動通路、２２…
…弁体、２８……油圧作動ポート、３０……ベン
チユリ部、３６……圧力応動装置、４０……第１
室、４６……第２室、４８……ダイヤフラム。
FIG. 1 is a schematic explanatory diagram showing the configuration of an embodiment of the present invention. 4...Hydraulic pump, 6...Hydraulic supply passage, 10
...Control valve device, 12...Hydraulic operating passage, 22...
... Valve body, 28 ... Hydraulic operation port, 30 ... Bench lily part, 36 ... Pressure response device, 40 ... First
Chamber, 46...Second chamber, 48...Diaphragm.
Claims (1)
機器に連通された油圧作動通路と、上記油圧作動
通路を大気開放する大気開放通路と、上記油圧作
動通路を上記油圧供給通路または大気解放通路の
何れか一方へ選択的に連通させる弁体と、断続電
流が供給されることにより同弁体を切り換え制御
するソレノイドとを有する制御弁装置、上記ソレ
ノイドに上記断続電流を供給する制御装置を備え
た油圧調整装置において、上記油圧供給通路又は
大気開放通路の何れか一方に設けられたベンチユ
リ部、同ベンチユリ部に連通する第１室と上記油
圧作動通路に連動する第２室と両室を隔絶する圧
力応動壁とを有する圧力応動装置を有することを
特徴とする圧力脈動低減装置。 A hydraulic pressure supply passage communicating with a hydraulic power source, a hydraulic pressure passage communicating with a hydraulically operated device, an atmosphere release passage that releases the hydraulic pressure passage to the atmosphere, and a hydraulic pressure passage communicating with the hydraulic pressure supply passage or the atmosphere release passage. A control valve device having a valve body that selectively communicates with one of the valve bodies, and a solenoid that switches and controls the valve body by being supplied with an intermittent current, and a control device that supplies the intermittent current to the solenoid. In the hydraulic adjustment device, a bench lily portion provided in either the hydraulic pressure supply passage or the atmosphere opening passage, a first chamber communicating with the bench lily portion and a second chamber interlocking with the hydraulic operating passage, and both chambers are isolated from each other. A pressure pulsation reducing device comprising a pressure responsive device having a pressure responsive wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8922980U JPS6114647Y2 (en) | 1980-06-25 | 1980-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8922980U JPS6114647Y2 (en) | 1980-06-25 | 1980-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5711311U JPS5711311U (en) | 1982-01-21 |
| JPS6114647Y2 true JPS6114647Y2 (en) | 1986-05-08 |
Family
ID=29451272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8922980U Expired JPS6114647Y2 (en) | 1980-06-25 | 1980-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114647Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5969502A (en) * | 1982-10-13 | 1984-04-19 | Yamatake Honeywell Co Ltd | Voltage-pressure transducer |
| DE3844732C2 (en) * | 1987-08-19 | 1996-03-28 | Fuji Electric Co Ltd | Mechanical coupling of rail mounted contactors |
| KR900003934A (en) * | 1987-08-19 | 1990-03-27 | 나가오 다게시 | Magnetic contactor connection device |
-
1980
- 1980-06-25 JP JP8922980U patent/JPS6114647Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5711311U (en) | 1982-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4476893A (en) | Hydraulic flow control valve | |
| JPH0544626Y2 (en) | ||
| JPH07103942B2 (en) | Hydraulic pilot valve device | |
| JPS52106529A (en) | Control system for controlling flow rate of fluid | |
| EP0427865A4 (en) | Hydraulic driving device of construction equipment | |
| JPS60237252A (en) | Proportional type fluid pressure regulating valve assembly | |
| EP0667452A4 (en) | Capacity control device in variable capacity hydraulic pump. | |
| JPS6114647Y2 (en) | ||
| JPH0374605A (en) | Pressure oil feeder for working machine cylinder | |
| JP4426136B2 (en) | Flow control valve | |
| US2410966A (en) | Brake mechanism | |
| JP2540745B2 (en) | Tire pressure regulator | |
| CA2266787A1 (en) | Electrically controlled flow regulator valve with transient dampening | |
| GB2335480A (en) | Electropneumatic pressure regulator | |
| JPH0223800Y2 (en) | ||
| US5876184A (en) | Electrohydraulic pressure regulating valve | |
| JPH04214914A (en) | Mechanism to control exhaust valve of reciprocating motion internal combustion engine | |
| JP3476593B2 (en) | Pilot type solenoid valve | |
| JPH0542296Y2 (en) | ||
| KR0149904B1 (en) | Fluid pressure control device | |
| JP2659152B2 (en) | Pressure control valve | |
| JPS6126691Y2 (en) | ||
| JPH0623809Y2 (en) | Pressure control valve | |
| JPS5891984A (en) | Electricity-oil proportion type relief valve | |
| JPH0788815B2 (en) | Diaphragm type vacuum pump |