JPH0353501B2 - - Google Patents
Info
- Publication number
- JPH0353501B2 JPH0353501B2 JP5283184A JP5283184A JPH0353501B2 JP H0353501 B2 JPH0353501 B2 JP H0353501B2 JP 5283184 A JP5283184 A JP 5283184A JP 5283184 A JP5283184 A JP 5283184A JP H0353501 B2 JPH0353501 B2 JP H0353501B2
- Authority
- JP
- Japan
- Prior art keywords
- oil tank
- oil
- bellows
- piston
- tank
- 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
- 238000013016 damping Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/061—Mono-tubular units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Description
【発明の詳細な説明】
本発明は油タンクを附設した油圧制振器に関す
るもので、ピストンロツドは片持式である。この
ためピストン移動の際その両側室は拡大縮小する
容積を異にするが、それによつて生ずる不具合点
を油タンクで処理し、制振作用を効果的に発揮で
きるようにしたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hydraulic damper equipped with an oil tank, in which the piston rod is cantilevered. For this reason, when the piston moves, the volumes of the chambers on both sides expand and contract differently, but the problem caused by this is solved by the oil tank, so that the vibration damping effect can be effectively exerted.
図面についてその実施例を説明する。シリンダ
１は両端にふた２，３を備え、ピストン４を内臓
してその両側の油室１ａ，１ｂを区画する。ロツ
ド５はふた３を摺動自在に貫通し、内端はピスト
ンに固着され、外端は引手（図示せず）に接続す
る。補助筒６はふた２に固着され、外端に引手６
ａを備え、伸縮可能な蛇腹式油タンク７を内臓す
る。通路８はふた２を貫通し、一端が油タンク７
の端部に接続して、油タンク７と油室１ａとを連
通する。通路８には弁９が設けてあり、附設ばね
９ａによつて常時はこの通路を開としているが、
油室１ａが高圧となり、弁９を流れる油の速度が
所定値以上になつたとき閉となるようにしてあ
る。通路１０はピストン４を貫通して油室１ａ，
１ｂを連通するが、両端に１対の弁１１，１２が
附設してある。弁１１，１２の構造は弁９と同じ
であるが、互いに異方向の流れを閉鎖可能に互い
違いにとりつけてある。油タンクの油は蛇腹が自
然長より長くなるよう適当に予圧してある。３つ
の弁９，１１，１２は何れも常時は開となつてい
るので、タンク７と油室１ａ，１ｂ内油は何れも
均等に予圧されている。 Examples will be described with reference to the drawings. The cylinder 1 has lids 2 and 3 at both ends, houses a piston 4, and defines oil chambers 1a and 1b on both sides thereof. The rod 5 slidably passes through the lid 3, its inner end is fixed to the piston, and its outer end is connected to a pull (not shown). The auxiliary cylinder 6 is fixed to the lid 2 and has a handle 6 at the outer end.
a, and a built-in expandable bellows type oil tank 7. A passage 8 passes through the lid 2 and has one end connected to the oil tank 7.
The oil tank 7 and the oil chamber 1a are communicated with each other by connecting to the end of the oil tank 7 and the oil chamber 1a. A valve 9 is provided in the passage 8, and the passage is kept open at all times by an attached spring 9a.
The oil chamber 1a is closed when the pressure becomes high and the speed of oil flowing through the valve 9 exceeds a predetermined value. The passage 10 passes through the piston 4 to form an oil chamber 1a,
1b, and a pair of valves 11 and 12 are attached to both ends. The valves 11 and 12 have the same structure as the valve 9, but are installed alternately so that they can close flows in opposite directions. The oil in the oil tank is appropriately preloaded so that the bellows is longer than its natural length. Since the three valves 9, 11, and 12 are all normally open, the oil in the tank 7 and the oil chambers 1a, 1b are all pre-pressurized equally.
本発明は以上のように構成される。引手６ａを
構築物に係止し、ロツド５を配管に接続したとす
る。温度変化による配管の変位でピストンが往復
動するような場合は、その動きが著るしく緩慢で
あるから、３つの弁は常に開を維持し、油は自由
に流通して、配管を拘束することはない。これに
反し地震等の急激な振動の場合は異なる。ピスト
ンが急激に右へ移動する場合、弁１１は閉となり
油室１ｂ内の油を強圧するが２つの弁９，１２は
開で、油室１ａへはタンク内の予圧された油が瞬
間的に流入してここを充填する。次にピストンが
左方への急激な移動に移ると、２つの弁９，１２
は閉となる。油室１ａの油は蛇腹へ流れこむこと
はなく、効果的に強圧される。ピストンの一定量
の移動によつて左右油室１ａ，１ｂに発生する容
積変化は、左室１ａで大きく、右室１ｂで小さい
が、そのことが制振作用の支障とならない。 The present invention is configured as described above. It is assumed that the handle 6a is locked to the structure and the rod 5 is connected to the pipe. When the piston moves back and forth due to piping displacement due to temperature changes, the movement is extremely slow, so the three valves remain open at all times, allowing oil to flow freely and restricting the piping. Never. On the other hand, the situation is different in the case of sudden vibrations such as earthquakes. When the piston suddenly moves to the right, the valve 11 closes and pressurizes the oil in the oil chamber 1b, but the two valves 9 and 12 are open, and the pre-pressurized oil in the tank instantly flows into the oil chamber 1a. flows into and fills here. Next, when the piston moves rapidly to the left, the two valves 9 and 12
is closed. The oil in the oil chamber 1a does not flow into the bellows, but is effectively pressurized. The change in volume that occurs in the left and right oil chambers 1a, 1b due to a certain amount of movement of the piston is large in the left chamber 1a and small in the right chamber 1b, but this does not impede the damping effect.
第２図に示す他の実施例では補助筒６のふたと
油タンク７の間にばね１３を挿入している。これ
により予圧を強化すること、或は蛇腹タンク長さ
を短縮することができる。 In another embodiment shown in FIG. 2, a spring 13 is inserted between the lid of the auxiliary tube 6 and the oil tank 7. This allows the preload to be strengthened or the length of the bellows tank to be shortened.
以上の如く本発明では予圧された蛇腹式タンク
の採用により、片持ちピストンの作動を円滑に
し、制振作用を効果的にしたことが特徴である。 As described above, the present invention is characterized in that by employing a pre-pressurized bellows type tank, the operation of the cantilevered piston is made smooth and the vibration damping effect is made effective.
第１図は本発明の正面図、第２図は他の実施例
の一部正面図である。
１…シリンダ、１ａ，１ｂ…油室、２，３…ふ
た、４…ピストン、５…ロツド、６…補助筒、７
…油タンク、８…通路、９…弁、９ａ…ばね、１
０…通路、１１，１２…弁、１３…ばね。
FIG. 1 is a front view of the present invention, and FIG. 2 is a partial front view of another embodiment. 1... Cylinder, 1a, 1b... Oil chamber, 2, 3... Lid, 4... Piston, 5... Rod, 6... Auxiliary cylinder, 7
...oil tank, 8...passage, 9...valve, 9a...spring, 1
0...Passage, 11, 12...Valve, 13...Spring.
Claims (1)
ダの一方のふたを貫通し外端を引手に接続させた
片持ちロツドと、シリンダの他方のふたに固着さ
れ蛇腹式油タンクを収納し外端に他の引手を備え
る補助筒と、油タンクとこれに隣接するピストン
片側室とを連通しかつ油タンク内への流れを閉鎖
可能な弁を附設した通路と、ピストン両側室を連
通し互いに異方向の流れを閉鎖可能な１対の弁を
附設した他の通路とから構成され、油タンク内油
を蛇腹で適当に予圧したことを特徴とする蛇腹タ
ンク式油圧制振器。 ２ 油タンクを押圧可能に補助筒ふたと油タンク
の間へばねを挿入した特許請求の範囲第１項記載
の蛇腹タンク式油圧制振器。[Scope of Claims] 1. A sealed cylinder containing a piston, a cantilever rod that penetrates one lid of the cylinder and connects its outer end to a handle, and is fixed to the other lid of the cylinder and houses a bellows-type oil tank. An auxiliary cylinder equipped with another handle at the outer end communicates the oil tank with a chamber on one side of the piston adjacent thereto, and a passage equipped with a valve capable of closing the flow into the oil tank communicates the chambers on both sides of the piston. and another passage provided with a pair of valves capable of closing flows in opposite directions, the bellows tank type hydraulic vibration damper being characterized in that the oil in the oil tank is appropriately pre-pressurized with a bellows. 2. The bellows tank type hydraulic vibration suppressor according to claim 1, wherein a spring is inserted between the auxiliary cylinder lid and the oil tank so as to be able to press the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5283184A JPS60196443A (en) | 1984-03-19 | 1984-03-19 | Bellows tank type hydraulic vibration suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5283184A JPS60196443A (en) | 1984-03-19 | 1984-03-19 | Bellows tank type hydraulic vibration suppressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60196443A JPS60196443A (en) | 1985-10-04 |
| JPH0353501B2 true JPH0353501B2 (en) | 1991-08-15 |
Family
ID=12925785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5283184A Granted JPS60196443A (en) | 1984-03-19 | 1984-03-19 | Bellows tank type hydraulic vibration suppressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60196443A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5192441B2 (en) * | 2009-05-20 | 2013-05-08 | カヤバ工業株式会社 | Damping valve |
-
1984
- 1984-03-19 JP JP5283184A patent/JPS60196443A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60196443A (en) | 1985-10-04 |
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