WO1989009883A1 - Evacuation type retainer - Google Patents
Evacuation type retainer Download PDFInfo
- Publication number
- WO1989009883A1 WO1989009883A1 PCT/JP1989/000389 JP8900389W WO8909883A1 WO 1989009883 A1 WO1989009883 A1 WO 1989009883A1 JP 8900389 W JP8900389 W JP 8900389W WO 8909883 A1 WO8909883 A1 WO 8909883A1
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- WIPO (PCT)
- Prior art keywords
- piston
- cylinder
- present
- peripheral surface
- pressure
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/262—Locking mechanisms using friction, e.g. brake pads
Definitions
- the annular outer member and the inner side 3 ⁇ 4 fitted inside the annular outer member are made to be movable relative to each other, or are held in a fixed state so that they cannot move relative to each other. ⁇ Regarding the type holding device. North
- Examples of such conventional examples include Japanese Patent Publication No. 38-224290, Japanese Patent Publication No. 45-222-76, Japanese Patent Publication No. Publication No. 48: 2207 Publication
- both parts U are able to move relative to each other, so that, for example, some failure of the hydraulic power source occurs, and the supply of high oil is stopped. 7 After the suspension, both parts will be in a state where it is possible to transfer to Rogi, and the members will be inadvertently moved relative to each other, resulting in an unforeseen accident.
- both the piston and cylinder are made of high-speed steel, stainless steel, etc. Since it is made of a material, galling occurs between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston, and the high-pressure oil fed between the inner and outer peripheral surfaces Leakage may occur, or the cylinder and piston may be tightly fitted during assembly! : After that, there was a risk of accidents that would cause the piston to be lost afterwards.
- a cylindrical riser made of a material having a low hardness with respect to the cylinder such as bronze or the piston is used.
- a hydraulic pressure is applied between the outer peripheral surface of the piston and the inner peripheral surface of the liner to inflate the cylinder together with the liner.
- the piston can be driven.
- the piston can be fixed and held in a state where the hydraulic pressure is released, which is extremely safe. Since the liner is made of a relatively soft material at high cost, no galling or the like occurs with respect to the piston, and the It is unlikely that 'assembly impossible' will occur.
- the present invention has been made in view of these points. It has a good fixed holding capacity, does not require high dimensional accuracy and processing accuracy, and does not require ripening, making it extremely easy to manufacture. Another object of the present invention is to provide an inexpensive exhaust-pressure holding device that is very inexpensive.
- the exhaust pressure holding device includes an inner member fitted into an annular outer member, and an inner peripheral surface of the outer member and an outer peripheral surface of the inner member.
- a high-pressure fluid is formed between the outer surface and the inner surface so that the high-pressure fluid can be freely supplied and discharged, and the high-pressure fluid is supplied to the outer member so that the outer member expands and the outer member and the inner member move relative to each other. Then, by discharging the high-pressure fluid, the outer member and the inner member are tightly fitted to each other to hold the two members in a fixed state where they cannot move relative to each other.
- a metal layer having a predetermined hardness difference with respect to the other material is integrally formed on one of the inner peripheral surface of the outer member and the peripheral surface of the inner member.
- the outer member and the inner member are formed so as to have a metal layer formed integrally on one side and having a different hardness and pressed against another force, there is a gap between the two members. It is possible to prevent the occurrence of galling, etc., and since both members can be fixed and held while the high-pressure fluid is discharged, extremely high safety can be achieved. Can be secured.
- a metal layer having a different hardness is integrally formed on one of the two members, and the metal layer and the other member are formed integrally.
- the exhaust-pressure holding device is configured and operates as described above, and as shown in various experimental results, it has extremely high reliability.
- Reliable fixing It can be held, has extremely good fixing and holding ability, and has extremely high dimensional accuracy and accuracy. This eliminates the need for heat treatment and eliminates the need for heat treatment, making it extremely easy to manufacture, and has the effects of reducing costs and reducing costs.
- the figure shows one embodiment of the I-pressure type holding device of the present invention.
- ⁇ A front view with a partial cross section
- Figure 2 is a cross-sectional view taken along the line II-II in Figure II.
- FIG. 3 is a cross-sectional view of FIG. 2 in a state in which the holding release force is applied, and FIG.
- FIG. 4 is a schematic diagram showing another application example of the present invention
- FIG. 5 is a schematic diagram showing another application example of the present invention
- FIG. 6 is a diagram showing a fixed holding force
- Fig. 7 is a graph showing the fixed holding force at the cylinder's first stroke position.
- FIG. 1 is a diagrammatic representation of an embodiment of the present invention.
- FIGS. 1 to 3 show one embodiment of the present invention, in which a cylindrical cylinder 1 is used for the outer member and a piston 2 is used for the inner member. .
- the cylinder 1 and the piston 2 are both made of a tough material such as Cr-Mo-gong and STK steel.
- a metal member 3 such as bronze having a predetermined hardness difference with respect to the material of the cylinder 1 is integrally formed.
- the metal layer 3 is formed by melting the metal, depositing the metal on the outer peripheral surface of the piston 2 and welding it, and then polishing the outer peripheral surface of the metal by cylindrical polishing. It is being done.
- the piston 2 is configured such that high-pressure fluid such as hydraulic oil is not supplied into the cylinder 1 between the outer peripheral surface of the metal ⁇ 3 and the inner peripheral surface of the cylinder 1. In the free state, both are inserted so that they cannot be moved relative to each other by a tight fit and are kept in a fixed state. Further, a rod 4 having a smaller diameter than the piston 2 is integrally formed at one end of the piston 2.
- sealing members 5, 5 which are in close contact with the inner peripheral surface of the cylinder 1 are provided around the ends of both ends of the above-mentioned screw 2.
- the outer circumferential surface of the metal layer 3, that is, the outer circumferential surface of the metal layer 3 is provided with grooves 6 having a predetermined number of grooves 6 each corresponding to an axial circumference. It is engraved as follows:
- a lid member 8 having a through hole 7 through which the rod 4 penetrates in the center is provided at the end of the cylinder E on the side of the front E opening 4. It is attached by means such as a screw head, and a plate-like closing member 9 covers the other end of the cylinder 1 at the other end of the cylinder 1.
- a high-pressure fluid is applied to the outer peripheral surface of the cylinder (1) at a position corresponding to the inside of each of the sealing members (5, ⁇ ) of the piston (2).
- a high-pressure fluid supply / discharge hole 10 to be introduced is provided between the piston ⁇ and the piston 2.
- the lid 3 ⁇ 48 and the outer periphery of the closing member 9 of the cylinder ⁇ are provided.
- a drive ⁇ -fil is introduced into both end faces of the front piston 2. Holes 11 and 11 are drilled.
- a sealing member 12 such as a 0 ring is interposed between the lid member 8 and the cylinder, and a force applied to the rod 4 with the rod 4 is not applied.
- a sealing member ⁇ 3 such as a double seal is interposed.
- a dust seal ⁇ 4 was installed at the end of axis 1]
- the piston 2 If the piston 2 is to be driven, first, when a high flow is supplied from the high a flow supply i-hole 10 and the high flow break is supplied through the respective grooves 6.
- the pressurized fluid supply / discharge hole 10 is conducted between the metal layer 3 and the cylinder 1, and this pressure causes the cylinder ⁇ ⁇ to expand radially outward, as shown in FIG.
- the piston oil hole 1 ⁇ By supplying oil from the piston oil hole 1 ⁇ , the piston 2 is driven in a desired amount within the range of the shaft direction.
- the piston 2 when oil is supplied from the piston hole 11 of the lid member 8, the piston 2 moves to the right in FIG. I, and the piston of the closing member 9 is moved.
- the stone 2 moves to the left as shown in the figure.
- the piston 1 is given a certain hoofing force to the piston 2 by the cylinder 1, and the piston 2 is blocked. While moving the rake, move in the axial direction at the desired speed.
- the metal footwear 3 is formed on the outer peripheral surface of the piston 2, and the metal foot 3 is formed through the metal foot 3.
- the inner peripheral surface of the cylinder is pressed against the inner surface of the cylinder, so that galling of the sealing ⁇ can be prevented from occurring.
- the piston 2 can be fixed and held in a state where the runaway has been discharged, extremely high safety is ensured. Can be obtained.
- the metal footwear 3 can be formed only by pouring it into piston 2 and then polishing it, for example, the metal foot 3 has a higher height than that of piston 2. Since high dimensional accuracy and high quality are not required, and ripening is not required, it can be manufactured easily and inexpensively.
- the metal (3) is formed by other known means such as fixing a cylindrical liner to the outer peripheral surface of the piston 2 or vapor-depositing the same. It may be formed integrally with the outer peripheral surface of the ton 2.
- the rotating shaft ⁇ 5 may be made rotatable or capable of being held in a fixed state.
- the metal member 3 and the sealing members 5 are provided on the inner peripheral surface of the cylinder 1.
- the metal layer 3 is divided into a plurality of pieces in the axial direction, and each split metal piece is separated by a predetermined distance in the direction of the axial force. fr. It may be formed so that the runaway is supplied and discharged.
- the inner member is a port 4 connected to the piston 2, and the outer member is moved in the axial direction of the rod 4 as shown in FIG.
- piston 2 metal layer 3
- rod 4 has a diameter of 56 sculptures
- a straw The design conditions are as follows: a 30-room restaurant, the holding release force by the cylinder 1 is 300 c, and the fixed holding force, that is, the load capable of supporting the piston 2 is ⁇ 5 t.
- the apparatus of the present invention was used.
- Figure 7 shows the results of measuring the fixed holding force at each stroke position of the piston.
- the line A in FIG. 7 shows the fixed holding force of each stroke leader at the time when the aforementioned operation test was completed for 2500 minutes.
- the circumference of the ⁇ -line and G are the slits after each. It shows the fixed holding force when the endurance test was performed 20 times and 4 ° times.
- the fixed holding force is a value per unit area given to the piston 2, and 15 t in the design condition is equivalent to about 191 / ci.
- the slip endurance test is to apply an overload to rod-4 to piston 2 that is in a fixed holding state by discharging high-pressure fluid, and load piston 2 with overload. This refers to moving the entire stroke. The results show that even with the lowest holding power, it still has the power to hold the piston reliably.
- the fixed holding force test for each position of the stroke was performed twice, and the minimum working pressure and the fixed holding force were tested. No, more than 70 slip durability tests were performed.
- the exhaust pressure holding device of the present invention reliably, safely, and reliably performs an operation of fixing and holding the inner member and the outer portion so that they cannot move relative to each other, or enabling relative movement. You can bring it with you. Therefore, the apparatus of the present invention can be used for crane, locator ⁇ launcher, hopper, dam gate, lifter, atomic equipment crusher, various testing machines In such cases, it is useful to use for fixed holding of the operating position of a relatively moving component, adjustment of the operating speed, and the like. .
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
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Abstract
An evacuation type retainer according to the present invention is designed so as to relatively move an annular outer member and an inner member inserted thereinto in one or both of the axial and circumferential directions thereof or fix them with respect to each other by supplying and discharging a high pressure fluid to and from these members. A conventional retainer of this kind had to be manufactered with a high processing accuracy and a high measurement accuracy so as to secure a smooth and safe operation thereof, so that it cost high. According to the present invention, these problems are solved by unitarily forming on one of the outer and inner circumferential surfaces of each of the above-mentioned inner and outer members, which are adjacent to each other, a metal layer the hardness of which is different by a predetermined level from that of the material of the other surface. The retainer according to the present invention has high operational reliability and safety, and can be used advantageously for fixing and retaining the operational positions of relatively moving structures and regulating the moving speeds thereof in a crane, a rocket launcher, a hopper, a dam gate, a lifter, nuclear installations, a crusher and various kinds of testing machines.
Description
明 細 排 圧 式 保 持 装 置 抆 術 -分 野 Fine pressure relief type holding device operation-field
本発 明 は 環状の外側 部材 と そ の 内部 に 嵌揷 さ れ る 内 側部 ¾ と を 、 桕対移動自 在 と し た り 、 相 対 移動不可 能 に 両者 を 固定状態 に 保持 す る 排压式保持装置 に 関 す る 。 北 According to the present invention, the annular outer member and the inner side ¾ fitted inside the annular outer member are made to be movable relative to each other, or are held in a fixed state so that they cannot move relative to each other.压 Regarding the type holding device. North
Ρ3 技 ' Ρ3 techniques ''
従来 か ら 外側部材 と 内 側部材 と を相 対移動 自 在 と し た り 固定状態 と る た め の各種 の捉案 が な さ れ て い る Conventionally, various proposals have been made to make the outer member and the inner member move relative to each other or to be fixed.
そ の従 来例 と し て は 、 特公昭 3 8 - 2 4 2 9 0 号 公報 特 公 昭 4 5 - 2 2 〇 7 6 公報 、 特公 昭 4 5 - 2 Q 3 4 6 号 公報 、 特 公 昭 4 8 ： 2 2 0 7 号 公報等 が あ る Examples of such conventional examples include Japanese Patent Publication No. 38-224290, Japanese Patent Publication No. 45-222-76, Japanese Patent Publication No. Publication No. 48: 2207 Publication
し か し な が ら 、 こ れ ら の 公報 に 記載さ れ た いず れ の 手 段 に お ( て も 、 高圧 油 を 送給 す _ と に よ り 、 外側 部材 と 内 側部お と の一方 を他力 に 向 け て 、 半 径方 向 に 膨 ¾変形 ま た は縮径変形 さ せ て 、 両部材 を一 休的 に 固定状態 と さ せ 、 ぞ の高 k油 を解 除 "9 る し と に よ り 両部 U が相 ¾ 移動 で き る よ に し て いる 。 従 っ て 、 例 え ば油圧源 に 何 ら か の 故 障 が発 生 し' 、 高 油 の送給 が 7ι一停止 さ れて し ま と 、 両 部 が 梠 対移勅 可 能 な 状態 と な つ て 、 不用 意 に 両部材 の 相 対 移 動 が こ り 、 不測 の事 故 が究生 す る お そ が あ ゥ t ,
前述 し た よ う な問題点を解決する た め 、 従来か ら 高圧流 休を送給 し た 時 に 外側部材を半径方向 に膨張させ て 内外の 両部材を相対移動自在 と させ 、 そ の高圧流体を排除 し た 時 に 両部材を し ま り 嵌め と さ せて 固定状態に保持 する排圧式 保持装置が提案さ れ使用 さ れて い る 。 すなわ ち 、 こ の装置 に お い て は 、 外側部 ¾ の一種で あ る シ リ ン ダ と 内側部材の 一種である ビス 卜 ン と の 間 に 油圧を付与 し 、 シ リ ンダの周 壁を膨張さ せる こ と に よ り ビス 卜 ン を駆動 で きる よ う に し ピス 卜 ン を 固定保持す る よ う に な さ れて い る 。 However, by means of supplying high-pressure oil by any of the means described in these publications, the outer member and the inner One of the members is expanded or deformed in the radial direction toward the other force, so that both members are temporarily fixed, and the high-k oil is released. In this way, both parts U are able to move relative to each other, so that, for example, some failure of the hydraulic power source occurs, and the supply of high oil is stopped. 7 After the suspension, both parts will be in a state where it is possible to transfer to Rogi, and the members will be inadvertently moved relative to each other, resulting in an unforeseen accident. That is ゥ t, In order to solve the above-mentioned problems, when a high-pressure flow is conventionally fed, the outer member expands in the radial direction to make both the inner and outer members relatively movable, thereby increasing the high-pressure flow. An exhaust-pressure holding device has been proposed and used in which, when the fluid is removed, the two members are tightly fitted and held in a fixed state. In other words, in this device, hydraulic pressure is applied between a cylinder, which is a type of outer member, and a piston, which is a type of inner member, so that the peripheral wall of the cylinder is provided. The piston is inflated so that the piston can be driven, and the piston is fixedly held.
し か し 、 こ の よ う な構造で 、 し ま り 嵌め に よ り 固定保持 す るた め に 、 ピス ト ンお よびシ リ ンダを共 に高速度鋼 、 ス テ ン レス等の強靭 な材料に よ り 製 し て い る ので 、 シ リ ンダ の内周面 と ビス 卜 ンの外周面 と の 間 に か じ り が生 じ た り 、 内外周 面間 に送給 し た 高圧油 の 漏洩が生 じ た り 、 組立て 途 中 に シ リ ン ダ と ピ ス ト ンが し ま り 嵌めさ れ！： し ま っ て 、 以 後 ピス 卜 ンを揷入で き.な く なる事故等が生 じ る おそ れが あ つ た 。 However, with this type of structure, both the piston and cylinder are made of high-speed steel, stainless steel, etc. Since it is made of a material, galling occurs between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston, and the high-pressure oil fed between the inner and outer peripheral surfaces Leakage may occur, or the cylinder and piston may be tightly fitted during assembly! : After that, there was a risk of accidents that would cause the piston to be lost afterwards.
そ の た め 、 従来か ら 、 シ リ ンダ と ピス 卜 ン と の 間 に 例 え ば青銅等の シ リ ンダや ピス ト ン に 対 し て 硬度の低い材料か ら な る筒状ラ イ サ を介設 し 、 前記 ピス ト ンの外周面 と ラ イ ナ の 内周面 と の 間 に 油圧を与え て 、 前記ラ イ ナ と共 に シ リ ンダを膨 ^さ せ る こ と に よ り 、 ピ ス 卜 ン を駆動でき る よ う に し た も の が お る 。 こ の装 に お い て は、 油圧 が解 除さ れ た 状態で ビス 卜 ンを固定保持でさ る ので 、 極め て 安全性 が
高 く 、 し かも 、 ラ イ ナ が比較的柔 かい材料で形成さ れて い る の で 、 ビス 卜ン に 対 す る か じ り 等が発生 す る こ と が な く 、 組立 て 時 に 組立 て 不可 能 と な る'よ う な場合 が発生 す る こ と お な い 。 For this reason, conventionally, between the cylinder and the piston, for example, a cylindrical riser made of a material having a low hardness with respect to the cylinder such as bronze or the piston is used. A hydraulic pressure is applied between the outer peripheral surface of the piston and the inner peripheral surface of the liner to inflate the cylinder together with the liner. In some cases, the piston can be driven. In this device, the piston can be fixed and held in a state where the hydraulic pressure is released, which is extremely safe. Since the liner is made of a relatively soft material at high cost, no galling or the like occurs with respect to the piston, and the It is unlikely that 'assembly impossible' will occur.
5 Five
発 明 の 開 示 Disclosure of the invention
し か し 、 ラ イ ナ を用 い た 従来の 装 置 に お い て は 、 次の よ う な不都合 が あ っ た o However, conventional equipment using a liner had the following inconveniences.
こ の種 の排圧式保 持装置 は 固定保持 を確実 に 行 な う 必要 1 0 が あ る た め 、 固定 保持 に 関 与 す る 部分 を厳格 な 寸法精度 の も と で製 し な け ればな ら な い 。 そ の た め に は前記従来例 に お い て は 、 シ リ ン ダお よ び ピ ス ト ン だけ で は な く ラ イ ナ も 含 め て 極め て 高い寸法精度が要求 さ れる 。 こ の^ 法 精度 と し て は 、 真 円 度 、 真筒度 、 周 心度 、 裒直度等 が あ る 。 従 つ Since this type of pressure-retained type holding device needs to be securely held, it is necessary to manufacture the parts involved in the fixed holding with strict dimensional accuracy. Nothing. For that purpose, in the above-mentioned conventional example, extremely high dimensional accuracy is required including not only the cylinder and the piston but also the liner. The accuracy of this method includes roundness, cylindricality, centroid, straightness, and the like. Obey
^ b て 、 こ の よ う な多種多様 な寸 法精度 を満 し な が ら シ リ ン ダ 、 ビ ス 卜 ン お よ び ラ イ ナ を 製す る に は 極 め て 高 い加 ェ 精 度 お よ び測 定精 度 が要求 さ れ 、 製造 が 困難で あ る と と も に 、 コ ス 卜 も 高価 な も の と な っ て い た 。 ま た 、 シ リ ン ダ と ピ ス 卜 ン と を 接で は な く ラ イ ナ を 介 し て 相対移動 で き な い よ う 0 に 固定 保持 す る も の で あ る た め 、 そ の 固定保持 の維 ¾性を 担保 る た め に 、 シ リ ン ダ お よ び ピ ス 卜 ン に 焼入 れ 、 焼戻 し 等 の 熱処现 を 行 な う 必要 が あ り , よ り 製造 が 困 鄹 な も の と な つ て し ま う と い う 問 点 を ¾ し て い た t, ^ b, while maintaining such a wide variety of dimensional accuracy, it is extremely expensive to produce cylinders, bistoons and liners. In addition to the high accuracy required for the measurement, the production was difficult, and the cost and cost were high. Also, since the cylinder and the piston are not connected to each other, they are fixed to 0 so that they cannot move relative to each other via the liner. In order to ensure the maintenance of the fixed holding, it is necessary to quench and temper the cylinder and piston, and to perform heat treatment such as tempering, which leads to more production. Koma鄹an even bet Do One with or jar and have it t that was ¾ the question point,
本発 明 は こ れ ら の点 に 鑑み て な さ れた も の で あ り 、 極 め
て良好 な 固定保持能力 を有 し 、 し かも高 い寸 法精 度や加工 精度が不要 と な り 、 そ し て熟処理も不要で あ っ て 、 極め て 容易 に製造す る こ と ができ 、 コ ス ト も す こ ぶる低廉な排圧 式保持装置 を提供す る こ と を 目 的 と す る 。 The present invention has been made in view of these points. It has a good fixed holding capacity, does not require high dimensional accuracy and processing accuracy, and does not require ripening, making it extremely easy to manufacture. Another object of the present invention is to provide an inexpensive exhaust-pressure holding device that is very inexpensive.
前記目 的を達成す る た め本発明 に係る排圧式保持装置は 、 環状の外側部材内 に 内側部材を嵌揷す る と と も に 、 前記外 側部材 の内周面 と内側部材の外周面 と の 間 に高圧流体 を給 排自在 に形成 し 、 記高圧流休を送給す る こ と に よ り 節記 外側部材 を膨張させ て外側部材 と 内側部材 と を相 ¾ 移動 自 在 と さ せ 、 前記高圧流体を排出 す る こ と に よ り 前記外側部 材 と 内側部材 とを し ま り 嵌め と させ て両部材を相対移動で き な い 固定状態 に保持 する排圧式保持装置 に おいて 、 前記 外側部材の 内周面および内側部材の 周面の いずれか一方 に 、 他方の材料に 対 し て所定硬度差を有する金属層 を一体 に 形成 し た こ と を特徴 と する 。 In order to achieve the above object, the exhaust pressure holding device according to the present invention includes an inner member fitted into an annular outer member, and an inner peripheral surface of the outer member and an outer peripheral surface of the inner member. A high-pressure fluid is formed between the outer surface and the inner surface so that the high-pressure fluid can be freely supplied and discharged, and the high-pressure fluid is supplied to the outer member so that the outer member expands and the outer member and the inner member move relative to each other. Then, by discharging the high-pressure fluid, the outer member and the inner member are tightly fitted to each other to hold the two members in a fixed state where they cannot move relative to each other. Here, a metal layer having a predetermined hardness difference with respect to the other material is integrally formed on one of the inner peripheral surface of the outer member and the peripheral surface of the inner member.
こ の よ う に構成さ れ る本発明 の排圧式保持装置に .よ れば、 前 記従来装置の不都合な点を解消 る こ と がで き る 。 According to the exhaust-pressure holding device of the present invention configured as described above, the disadvantages of the above-described conventional device can be solved.
す なわ ち 、 外側部材 と 内側部材 と が一方に 一体的 に 形成 し た硬度の異なる金属層 をも っ て 他力 と圧接す る よ う に な さ れて い る の で 、 両部材間 に か じ り 等が発生 す る こ と を 防 止 寸 る こ と ができ 、 し か も 、 高圧流体が排 出さ れた状態で 両部材 を 固定僳持で き る ので 、 極 め て 高い 安全性を確保す る こ とができる 。 ま た 、 硬度 の異 な る金属層 を両部材の い ずれか一方 に 一体的に形成 し -、 そ の 金属層 と 他方の 部材 と
That is, since the outer member and the inner member are formed so as to have a metal layer formed integrally on one side and having a different hardness and pressed against another force, there is a gap between the two members. It is possible to prevent the occurrence of galling, etc., and since both members can be fixed and held while the high-pressure fluid is discharged, extremely high safety can be achieved. Can be secured. In addition, a metal layer having a different hardness is integrally formed on one of the two members, and the metal layer and the other member are formed integrally.
C f C f
が し ま り 嵌 め と な る よ う に 製 す れば よ い ので 、 両部材 に 対 す る 高 い 寸 法精度 お よ び加 ェ 精度 が 要求 さ れず 、 さ ら に 、 熱処理 も不要 と な る の で 、 容易 に かつ 安価 に 製造 す る こ と が で さ る 。 Since it is only necessary to make it so that it fits tightly, high dimensional accuracy and processing accuracy are not required for both members, and no heat treatment is required. Therefore, it can be easily and inexpensively manufactured.
本発 明 に 係る排 圧式保持装置 は以上説 明 し た よ う に 構成 さ れ作用 す る も の で あ り 、 し か も 各種 の 実験結果 に も 示 す よ う に 極 め て高 い信 頼性 を も っ て 固定： 保持 を 行 な う こ と が で き る も の で あ り 、 極 め て 良好 な 固定保持能力 を有 し 、 し か も高 い寸 法精度や加 ェ精 度 が不要 と な り 、 そ し て 熱処理0 ち 不要で あ っ て 、 極 め て 容易 に 製造 す る こ と がで き 、 コ ス 卜 も こ ぶる低廉 と な る等の効果を奏 す る 。 図 面 の 簡 単 な 説 明 The exhaust-pressure holding device according to the present invention is configured and operates as described above, and as shown in various experimental results, it has extremely high reliability. Reliable fixing: It can be held, has extremely good fixing and holding ability, and has extremely high dimensional accuracy and accuracy. This eliminates the need for heat treatment and eliminates the need for heat treatment, making it extremely easy to manufacture, and has the effects of reducing costs and reducing costs. Brief explanation of drawings
図 は本発 明 のお I 圧式保持装置 の一 芙施例 を示 ^ 一 部 を 断面 と し た 正 面 図 、 The figure shows one embodiment of the I-pressure type holding device of the present invention. ^ A front view with a partial cross section,
第 2 図 は第 Ί 図 の Π - II 線 に 洽 つ た 断面 図 、 Figure 2 is a cross-sectional view taken along the line II-II in Figure II.
第 3 図 は保持解 除力 が付与 さ れて い る 状態 の 第 2 図 と 周 様 の 断 面 図 、 FIG. 3 is a cross-sectional view of FIG. 2 in a state in which the holding release force is applied, and FIG.
第 4 図 は本発 明 の他 の適用 例 を示 1^ 概略構成図 、 第 5 図 は本発明 の 更 に 他 の 適用 例 を 示 す 概略構成図 、 第 6 図 は 固 '保 持 力 の作動 回数 に 対 サ る 変 化特性 図 、 第 7 図 は シ リ ン ダ の 名 ス 卜 ロ ー ク 位 に お け る 固 定 保 力 を示 す 線 図 で あ る
- ら - 発明 を实施す る た め の最良の形態 FIG. 4 is a schematic diagram showing another application example of the present invention, FIG. 5 is a schematic diagram showing another application example of the present invention, and FIG. 6 is a diagram showing a fixed holding force. Fig. 7 is a graph showing the fixed holding force at the cylinder's first stroke position. -Best-best mode for carrying out the invention
以下 、 本発明 の実施例 を第 1 図 か ら 第 5 図 をき照 し て 説 明 す る 。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG.
第 Ί 図 か ら 第 3 図 は本発明 の一実施例を示 し た も ので 、 外側部材 に 円 筒形の シ リ ンダ 1 を用 い 、 内側部材に ピス ト ン 2 を用 いた もので あ る 。 こ の シ リ ンダ 1 お よ び ピス ト ン 2 は 、 共 に C r - M o 鑼 、 S T K 鋼等の 強靱な材料に よ つ ' て製せ ら れて いる 。 そ し て 、 前記 ピス ト ン 2 の外周面 に は m 記 シ リ ンダ 1 の材料 に対す る所定の硬度差を有する 青銅 等の金属雇 3 が一体的 に形成さ れて い る 。 こ の金属層 3 は 該金属を溶融 し て ビス 卜 ン 2 の外周 面 に盛付け る よ う に し て 溶着 し た 後 、 外周面を円 筒研磨 し て一 体 に形成す る よ う に な さ れて い る 。 更に 、 ピス ト ン 2 は シ リ ンダ 1 内 に 、 金 属 ^ 3 の外周面 と シ リ ンダ 1 の 内周面 と の 間 に 作動油等の 高圧流体が送給さ れ て い な い 自 由 状態に お いて 、 両者が し ま り 嵌め によ っ て相対移動不可能 に し て 固定状態に 保 持さ れる よ う に 内挿さ れて い る 。 ま た 、 こ の ピス ト ン 2 の一端 部 に は 、 こ の ビス 卜 ン 2 よ り 小径 と さ れた ロ ッ ド 4 が一体 に 形成さ れて い る 。 FIGS. 1 to 3 show one embodiment of the present invention, in which a cylindrical cylinder 1 is used for the outer member and a piston 2 is used for the inner member. . The cylinder 1 and the piston 2 are both made of a tough material such as Cr-Mo-gong and STK steel. On the outer peripheral surface of the piston 2, a metal member 3 such as bronze having a predetermined hardness difference with respect to the material of the cylinder 1 is integrally formed. The metal layer 3 is formed by melting the metal, depositing the metal on the outer peripheral surface of the piston 2 and welding it, and then polishing the outer peripheral surface of the metal by cylindrical polishing. It is being done. In addition, the piston 2 is configured such that high-pressure fluid such as hydraulic oil is not supplied into the cylinder 1 between the outer peripheral surface of the metal ^ 3 and the inner peripheral surface of the cylinder 1. In the free state, both are inserted so that they cannot be moved relative to each other by a tight fit and are kept in a fixed state. Further, a rod 4 having a smaller diameter than the piston 2 is integrally formed at one end of the piston 2.
ま た 、 前 記 ビス 卜 ン 2 の両端部の舛 周 に は 、 前記シ リ ン ダ 1 の 内 周 面 に密着す る 封止部材 5 , 5 が周設さ れて お り 前 S ビス 卜 ン 2 の外周面す なわ ち 金属層 3 の 外周面 に は 、 本実施例 に おい て は 、 軸方向 お ょ ぴ周 (¾ に そ れ ぞれ逍当 数 の溝 6 が所定間 隔を有 ¾ る よ う に し て刻 設さ れて い る ：；
ま た 、 前記 シ リ ン ダ Ί の 前 E 口 ッ ド 4 側端部 に は 、 中 央部 に 前 記 ロ ッ ド 4 を貫通 さ せ る 貫通孔 7 が 穿設さ れ た 蓋部材 8 が螺 台等の手段 に よ り 取付 け ら れ て お り 、 m 記 シ リ ン ダ 1 の 他端部 に は 、 板状 の 塞部材 9 が 前記シ リ ン ダ 1 の 他 端部 を覆 う よ う に 溶接等 に よ り 固着 さ れて い る 。 前 記 シ リ ン ダ Ί の外周 面で あ っ て 前記 ピ ス 卜 ン 2 の各 封止部材 5 , Γ) よ り 内側 に 該当 す る位置 に は 、 高圧 流体 を前 記 シ リ ン ダ 1 と ピ ス ト ン 2 と の 間 に 導入す る 高圧流体給排孔 1 0 が穿 設 さ れて お り 、 前記 シ リ ン ダ Ί の前 記蓋部 ¾ 8 お よ び 閉塞 部材 9 の 外周 に は 、 そ れぞ れ ピ ス ト ン 2 を-軸方向 に 駆動 す る た め の駆動用 τί ィ ルを前 ピス 卜 ン 2 の両端 面部分 に 導 入 す る ピ ス ト ン 用 オ イ ル孔 1 1 , 1 1 が穿設さ れ て い る 。 ま た 、 蓋部材 8 と シ リ ン ダ Ί と の 間 に は 0 リ ン グ等 の 封止 部 材 1 2 が介装 さ れ て お り 、 ロ ッ ド 4 と の l¾] に は メ 力 二 力 ルシ ー ル等 の封 止 部材 Ί 3 が 介 装さ れ て い る 。 史 に 、 軸 1] 向 端 部 に は ダス 卜 シ ー ル Ί 4 が 介 裝 さ れ て い る Further, sealing members 5, 5 which are in close contact with the inner peripheral surface of the cylinder 1 are provided around the ends of both ends of the above-mentioned screw 2. In this embodiment, the outer circumferential surface of the metal layer 3, that is, the outer circumferential surface of the metal layer 3 is provided with grooves 6 having a predetermined number of grooves 6 each corresponding to an axial circumference. It is engraved as follows: In addition, a lid member 8 having a through hole 7 through which the rod 4 penetrates in the center is provided at the end of the cylinder E on the side of the front E opening 4. It is attached by means such as a screw head, and a plate-like closing member 9 covers the other end of the cylinder 1 at the other end of the cylinder 1. Thus, it is fixed by welding or the like. A high-pressure fluid is applied to the outer peripheral surface of the cylinder (1) at a position corresponding to the inside of each of the sealing members (5, Γ) of the piston (2). A high-pressure fluid supply / discharge hole 10 to be introduced is provided between the piston と and the piston 2. The lid ¾8 and the outer periphery of the closing member 9 of the cylinder Ί are provided. In order to drive the piston 2 in the -axis direction, a drive τ-fil is introduced into both end faces of the front piston 2. Holes 11 and 11 are drilled. Further, a sealing member 12 such as a 0 ring is interposed between the lid member 8 and the cylinder, and a force applied to the rod 4 with the rod 4 is not applied. A sealing member Ί3 such as a double seal is interposed. Historically, a dust seal Ί4 was installed at the end of axis 1]
次 に 、 本実施例 の作 用 を 説 明 す る 。 Next, the operation of the present embodiment will be described.
本 '美施例 に おい て は 、 シ リ ン ダ Ί の 内周面 と 金 属層 3 の 外周面 と の 間 に ； ¾ E流休を送給 し て い な い通常の状態で は 第 1 図 よ び第 2 図 に 示す よ う に 、 縮径状態 の シ リ ン ダ 1 に よ り ビ ス 卜 ン 2 が し ま り 嵌 め に よ つ て 固 定 保 持さ れ て お り ， ビ ス 卜 ン 2 は 駆 ij す る こ と が で き ' V In the present example, between the inner peripheral surface of the cylinder と and the outer peripheral surface of the metal layer 3; As shown in FIGS. 1 and 2, the diameter of the cylinder 1 is reduced by the cylinder 1 and the piston 2 is fixedly held by a tight fit. Viston 2 can drive ij
そ し て 、 ビ ス 卜 ン 2 を 駆動 寸 る場 合 は 、 ま ず .、 高 a 流 給 お i 孔 1 0 か ら 高 流休 を 供給 る と 、 各 溝 6 を 介 し
圧流体給排孔 1 0 が金属層 3 と シ リ ンダ 1 と の 間 に導通さ れ、 こ の圧力 に よ り シ リ ン ダ Ί が 半径方向外方に膨張 し て 、 第 3 図 に示す よ う に 、 ピス ト ン 2 の固定保持を解除 る 。 そ し て 、 こ の状態で 、 ピス ト ン用 オイ ル孔 1 Ί か ら オイ ル を供給 す る こ と によ り 、 ピス ト ン 2 を軸カ 向艮 し の範囲内 で所望量駆動 さ せる 。 こ の 場合 、 蓋部材 8 の ピス ト ン用 才 ィ ル孔 1 1 か ら オイ ルを供給寸 る と 、 ピス ト ン 2 は第 " I 図 の右方向 に 移動 し 、 閉塞部材 9 の ピス ト ン用 オ イ ル孔 1 1 か ら オ イルを供給す る と 、 ビス 卜 ン 2 は同 図 の左力 向 に 移 動 す る 。 If the piston 2 is to be driven, first, when a high flow is supplied from the high a flow supply i-hole 10 and the high flow break is supplied through the respective grooves 6. The pressurized fluid supply / discharge hole 10 is conducted between the metal layer 3 and the cylinder 1, and this pressure causes the cylinder 膨 張 to expand radially outward, as shown in FIG. Thus, the fixed holding of the piston 2 is released. Then, in this state, by supplying oil from the piston oil hole 1 ピ, the piston 2 is driven in a desired amount within the range of the shaft direction. Let In this case, when oil is supplied from the piston hole 11 of the lid member 8, the piston 2 moves to the right in FIG. I, and the piston of the closing member 9 is moved. When oil is supplied from the oil hole 11 for oil, the stone 2 moves to the left as shown in the figure.
そ し て 、 高圧流体給排孔 Ί 0 を通 し て シ リ ンダ 1 と 金属 層 3 と の 間 か ら高圧流体を排出 す る と 、 シ リ ンダ Ί に加わ つ て いた圧力 が低下する ので 、 シ リ ン ダ Ί が弾性に よ り 縮 径 し て元 の状態に戻 り 、 ビス 卜 ン 2 を再び固定保持する 。 When the high-pressure fluid is discharged from between the cylinder 1 and the metal layer 3 through the high-pressure fluid supply / discharge hole # 0, the pressure applied to the cylinder Ί decreases. Then, the cylinder Ί is reduced in diameter by elasticity to return to its original state, and the piston 2 is fixed and held again.
ま た 、 高圧流体の送給量を加減 し て 、 シ リ ンダ 1 に よ り ピス ト ン 2 へ あ る程度の蹄め付け力 を付 . さ せ なが ら 、 ピ ス 卜 ン 2 をブ レ ー キ をかけなが ら 所望 の速度で軸力 向移動 さ ti る よ う に し て ち ょ い 。 Also, by adjusting the supply amount of the high-pressure fluid, the piston 1 is given a certain hoofing force to the piston 2 by the cylinder 1, and the piston 2 is blocked. While moving the rake, move in the axial direction at the desired speed.
し た が つ て 、 本实施例 に お い て は 、 ピス ト ン 2 の外 周面 に 金属履 3 が形成さ れて お り 、 こ の金属屈' 3 を介 し て 、 シ リ ンダ Ί の内周面 に 圧接 る よ う に な さ れて い るので 、 シ リ ン グ Ί に 対す る か じ り 等が発生 す る こ と を 防止す る こ と ができ 、 し か も 、 高圧流休が排 出 さ れた 抗態で ピス ト ン 2 を 固定保持 で き る の で 、 極め て 高 い 安全性を碓保す る こ と
が で き る 。 ま た 、 前 記金属履 3 は例 え ば ピス ト ン 2 へ盛 け て 、 そ の後研磨 す る だけ で形成す る こ と がで き る の で 、 ピス ト ン 2 に対 す る高 い寸法精度 お よ び加 ェ 粽 度が要 求さ れず 、 さ ら に 、 熟処理 も 不要 と な る ので 、 容易 に かつ 安価 に 製造 ί る こ と がで き る 。 Therefore, in this embodiment, the metal footwear 3 is formed on the outer peripheral surface of the piston 2, and the metal foot 3 is formed through the metal foot 3. The inner peripheral surface of the cylinder is pressed against the inner surface of the cylinder, so that galling of the sealing Ί can be prevented from occurring. Because the piston 2 can be fixed and held in a state where the runaway has been discharged, extremely high safety is ensured. Can be obtained. In addition, since the above-mentioned metal footwear 3 can be formed only by pouring it into piston 2 and then polishing it, for example, the metal foot 3 has a higher height than that of piston 2. Since high dimensional accuracy and high quality are not required, and ripening is not required, it can be manufactured easily and inexpensively.
な お 、 前 記金属） 3 は 、 筒状 の ラ イ ナ状 に 形成 し た も の を ピス ト ン 2 の外周面 に 固着 し た り 、 蒸着 す る 等他 の公知 手段 によ っ て ピス ト ン 2 の外周面 に一体的 に 形成 す る よ う に し て も よ レヽ 。 The metal (3) is formed by other known means such as fixing a cylindrical liner to the outer peripheral surface of the piston 2 or vapor-depositing the same. It may be formed integrally with the outer peripheral surface of the ton 2.
ま た 、 本 発 明 は前記灾施例 に 限定 さ れる も の で は な く 、 必要 に 応 じ て 変更 す る こ と が で き る も ので あ り 、 例 え ば第 In addition, the present invention is not limited to the above-described embodiment, but can be changed as necessary.
4 図 に 示す よ う に ピス ト ン 2 に 代え て 回転軸 Ί 5 を 、 回転 可 能 と し た り 固定 状態 に 保持で き る よ う に し て も よ い 。 本 実施例 に お い て は 、 金属麗 3 お よ び封 止部材 5 , 5 を シ リ ン ダ 1 の 内周面 に 設 け て い る 。 ま た 、 金属層 3 は軸方向 に 複 数 に 分 割 し た り 、 各分割金厲履 を軸 力 向 に 所 定 間 隔だ U 離 間 さ ίί , そ の 環状 の 間 隔部 へ も 高 fr. 流休が 給排さ れ る よ う に 形成 し て も よ い 。 ま た 、 第 5 図 に 示 す よ う に 、 内 側部 材 を ピ ス 卜 ン 2 に 連結さ れ て い る 口 ッ ド 4 と し 、 外側 部材 を こ の ロ ッ ド 4 の軸 向移動 を 支 承 す る HI ッ ド支承 部材 Ί 6 と し 、 こ の ロ ッ ド 支承部材 Ί 6 の 内 側 面 に 溝 6 が刻 設 れて い る 金属 ϋ 3 お よ び封 止 部材 5 , 5 等 を設 け て ょ い 次 に 、 木発 明 に 基づい て 製 し た 排圧 式 保 装置 の 動 作 の 信頼性 の実験結果 を 説 明 す る t:
実験に係る本発明装置の説明 4 As shown in the figure, instead of piston 2, the rotating shaft Ί5 may be made rotatable or capable of being held in a fixed state. In the present embodiment, the metal member 3 and the sealing members 5 are provided on the inner peripheral surface of the cylinder 1. In addition, the metal layer 3 is divided into a plurality of pieces in the axial direction, and each split metal piece is separated by a predetermined distance in the direction of the axial force. fr. It may be formed so that the runaway is supplied and discharged. Also, as shown in FIG. 5, the inner member is a port 4 connected to the piston 2, and the outer member is moved in the axial direction of the rod 4 as shown in FIG. HI support member Ί 6, and a metal ϋ 3 having a groove 6 engraved on the inner surface of the load support member Ί 6, and a sealing member 5, 5. Next, we will explain the results of experiments on the reliability of the operation of the exhaust pressure holding device manufactured based on the tree invention t: Description of the device of the present invention relating to experiments
第 Ί 図 に 示す も の と 周様な構成を有 し 、 ピス ト ン 2 ( 金 属層 3 ) の外径が Ί 0 0 腿 、 ロ ッ ド 4 の直径が 5 6 雕 、 ス 卜 ロ ー ク が 3 0 廳であ り 、 シ リ ン ダ 1 に よ る保持解除力 が 3 0 0 ノ c 、 固定保持力 すなわち ピス ト ン 2 が支承可 能 な負荷が Ί 5 t の 設計条件を篛た す本発明装置を用 い た 。 It has a configuration similar to that shown in FIG. 5, in which piston 2 (metal layer 3) has an outer diameter of about 100 thighs, rod 4 has a diameter of 56 sculptures, and a straw. The design conditions are as follows: a 30-room restaurant, the holding release force by the cylinder 1 is 300 c, and the fixed holding force, that is, the load capable of supporting the piston 2 is Ί5 t. The apparatus of the present invention was used.
1 》 作動試験 1》 Operation test
ピ ^ト ンをス ト 口 一 ク 位置か ら 固定解除 、 全ス ト ロ ー ク の 前進、 固定保持 、 固定解除 、 全 ス ト ロ ー ク の後退 の連続 動作を繰 り 返 し 2 5 ◦ ◦ 回行ない 、 ス ト ロ ー ク 位置 にお け る 固定保持力 の変化を測定 した作動試験の ^果を第 6 図 A 線-に示す 。 第 6 図 B 線は A鎵の各値の設計条件に対 する割 合を示 し て い る 。 こ の場合、 高圧流体 と し て の作-動油 温度 は 2 3 。C 〜 3 8 G で あ り 、 気温は 2 2 °C 〜 2 8 °C で あ っ た c こ の結果に よ れば 、 2 0 0 0 回以上動作さ せ る と わず か なが ら 、 固定保持力 が低下するが 、 それで も 、 設計値 Ί 5 t よ り も 極め て高 い保持力 を得る こ と ができる こ と がわ か る c Repeat the continuous release of the piston from the stroke position, release of all strokes, advance of all strokes, hold and release, release of all strokes, and retreat of all strokes 25 ◦ ◦ The result of an operation test in which the change of the fixed holding force at the stroke position was measured by turning the robot is shown in Fig. 6, line A-. The line B in Fig. 6 shows the ratio of each value of A 鎵 to the design conditions. In this case, the hydraulic oil temperature as a high-pressure fluid is 23. Ri Oh in the C ~ 3 8 G, the temperature is 2 2 ° C ~ 2 8 ° by the lever to c this result was Tsu Oh in C, 2 0 0 0 times or not I and Ru is operated greater than or equal to the length, et al. , but fixed the holding force is reduced, so also, that if this and the side it is possible to get the holding force has high an extremely also Ri by the design value Ί 5 t c
2 ) 固定保持力試験 2) Fixed holding force test
ピス 卜 ン の各ス 卜 ロ ー ク位置 に おけ る 固定保持力 を測定 し た結果を第 7 図 に示す 。 Figure 7 shows the results of measuring the fixed holding force at each stroke position of the piston.
こ こ で 、 第 7 図 中 A 線は 、 前記の'作動試験を 2 5 0 0 Θ 終了 し た 合 に お け る各ス 卜 ロ ー ク 位爵 の 固定保持力 を示 し て い る 。 周 図 β 線お よぴ G は そ れぞれそ の後の ス リ ッ
プ耐久試験 を 2 0 回 お よ び 4 ◦ 回 行 な っ た 時の 固定 保持 力 を 示 し て い る 。 ま た 、 固定保持力 は ピス 卜 ン 2 に 付与 さ れ る 単 位 面積 当 り の 値 と し て お り 、 設 計 条 件 の 1 5 t は 約 1 9 1 / ci に 相 当 す る 。 Here, the line A in FIG. 7 shows the fixed holding force of each stroke leader at the time when the aforementioned operation test was completed for 2500 minutes. The circumference of the β-line and G are the slits after each. It shows the fixed holding force when the endurance test was performed 20 times and 4 ° times. In addition, the fixed holding force is a value per unit area given to the piston 2, and 15 t in the design condition is equivalent to about 191 / ci.
こ こ で ス リ ッ プ耐久試験 と は 、 高圧流体 を排出 し て 固定 保持状態 に あ る ピス ト ン 2 に 対 し て 、 ロ ッ ド - 4 に 過負 荷 を 掛け て ピス ト ン 2 を全 ス ト ロ ー ク 移動 さ せ る こ と を い う 。 . こ の 結果 に よ れば 、 最 も 低 い 保持力 の 場合で も 、 ビ ス 卜 ン を確实 に保持 で き る 力 を有 し て い る こ と がわ か る 。 Here, the slip endurance test is to apply an overload to rod-4 to piston 2 that is in a fixed holding state by discharging high-pressure fluid, and load piston 2 with overload. This refers to moving the entire stroke. The results show that even with the lowest holding power, it still has the power to hold the piston reliably.
3 ) そ の他 の 試験 3) Other tests
前述 し た 各作動試験を 行 な つ た 後 に 、 ス ト ロ ー ク の 各 位 置 の 固定 保持力 試験を 2 回 、 最低作 勁圧力 お よ び固 定保持 力 の応笞性試験 を行 な い 、 7 0 回以上 の ス リ ッ プ耐久試験 を 行な っ た 。 After performing each of the above-mentioned operation tests, the fixed holding force test for each position of the stroke was performed twice, and the minimum working pressure and the fixed holding force were tested. No, more than 70 slip durability tests were performed.
す なわ ち 、 こ の ス リ ッ プ耐 久試験 に お い て は 、 固 定 保 持 後 ピス 卜 ン へ の 負 荷压力 を昇 -. さ せ て ピ ス 卜 ン が ス 卜 口 一 ク 0 の位置 か ら ス リ ッ プを 開 始 ϋ る ¾ の ビ ス 卜 ン に か か る 圧力 を 求 め た が 、 そ の ス リ ッ プ 開 始圧力 は定格の 固 定 保持 力 よ り 十分 に 人 き く 維持 さ れ た ま ま で あ っ た 。 In other words, in this slip endurance test, after the fixed load is maintained, the load on the piston is increased. The pressure applied to the piston that starts the slip from the position of was obtained.The pressure at which the slip was started was sufficiently higher than the rated fixed holding force. It was kept in a private state.
ま た 、 各 ス 卜 ロ ー ク 位置 に お け る ス リ ッ プ耐 久 試験 を 「ϊ な つ た が 、 同様 に 十分大 き な 固 定保持 力 が雜持 さ れて い た ま た 、 油 溻 や室 温 等 を使用 環境 の変化 を 考慮 し て 極 々 に 変 え て 前 記 と 周様 な 各 試験ゃ応 笞 試験 を 行 な っ た が 、 全 範 に お い て 十分大 き な 阖定 保 持 力 を得 る と と も に 、 早 応
答性を得る こ と ができた 。 In addition, a slip endurance test at each stroke position was described as `` Similarly, a sufficiently large fixed holding force was also carried. The oil temperature, room temperature, etc. were changed drastically in consideration of changes in the use environment, and the tests described above were performed. As well as gaining a certain level of holding power, I was able to get responsiveness.
以上の各実験結果か ら も 、 本発明装置の動作の信頼性が 高い こ とがわかる σ 産 業 上 の 利 用 可 能 性 More even the experimental results or et utilization for friendly potential on reliable This Togawakaru σ industrial operation of the present invention device
本発明の排圧式保持装置は 、 内側部材 と外側部お と を相 対移動不可能な よ う に 固定保持 し た り 相対移動可 能 と す る 動作を 、 確実にかつ 安全 に高い信頼性をも っ て 行な う こ と がで き る 。 従 っ て 、 本発明 装置を 、 ク レ ー ン、 ロ ケ ッ 卜 ♦ ラ ン チ ャ ー 、 ホ ッ パ ー 、 ダムゲー ト 、 リ フ タ ー 、 原子装置 ク ラ ッ シ ャ ー 、 各種試験機等に おいて 、 相対移動 す る構成 物 の動作位置の固定保持や動作速度の調整等 に 用 いる と有 用 で あ る 。 .
The exhaust pressure holding device of the present invention reliably, safely, and reliably performs an operation of fixing and holding the inner member and the outer portion so that they cannot move relative to each other, or enabling relative movement. You can bring it with you. Therefore, the apparatus of the present invention can be used for crane, locator ♦ launcher, hopper, dam gate, lifter, atomic equipment crusher, various testing machines In such cases, it is useful to use for fixed holding of the operating position of a relatively moving component, adjustment of the operating speed, and the like. .
Claims
BS 求 の 範 囲 m状 の外側部材 内 に 内 側 部材 を 嵌挿 す る と と ち に 、 前記 外側部材 の 内周面 と 内側部材の外周面 と の 間 に 高 圧 流体 を 給排自 在 に 形成 し 、 前 記高 Γ±流休を 送給す る こ と に よ り ι 記外側部材を膨張 さ せ て 外 側部材 と 内側部材 と を相対 移動 自 在 と さ せ 、 13リ nS高圧流体を 排出 す る こ と に よ り 前記外側 部材 と 内側部 と を し ま り 嵌 め と さ せ て両部材 を相 対 移動 で ぎ な い [il定状態 に 保持 す る 排圧 式保，持装 置 に お い て 、 前 記外側部材の 内周面 お よ び内 側部材 の外 周面 の い ず れか一 方 に 、 他方 の 材料 に 対 し て 所定硬度差 を有 す る 金属層 を一 休 に 形成 し た こ と を特徴 と す る排 ii 式保持装 置 。
When the inner member is inserted into the m-shaped outer member in the range of the BS, a high-pressure fluid is supplied and discharged between the inner peripheral surface of the outer member and the outer peripheral surface of the inner member. The outer member and the inner member are made to move relative to each other by inflating the outer member by sending the above-mentioned high pressure to the outer member, and the pressure is increased by 13 nS. By discharging the fluid, the outer member and the inner member are tightly fitted to each other so that the two members cannot move relative to each other. In the holding device, any one of the inner peripheral surface of the outer member and the outer peripheral surface of the inner member has a predetermined hardness difference with respect to the other material. An ii-type holding device, characterized in that the layers are formed at rest.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63/90688 | 1988-04-13 | ||
| JP63090688A JPH0718445B2 (en) | 1988-04-13 | 1988-04-13 | Exhaust pressure type holding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1989009883A1 true WO1989009883A1 (en) | 1989-10-19 |
Family
ID=14005473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1989/000389 WO1989009883A1 (en) | 1988-04-13 | 1989-04-11 | Evacuation type retainer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0718445B2 (en) |
| WO (1) | WO1989009883A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2681651A1 (en) * | 1991-09-24 | 1993-03-26 | Quiri Cie Usines | Self-locking dual-acting hydraulic thrust cylinder |
| EP0534879A1 (en) * | 1991-09-24 | 1993-03-31 | Société des Usines QUIRI & Cie, S.A. | Hydraulic self locking double acting actuator |
| FR2685398A1 (en) * | 1991-12-24 | 1993-06-25 | Peugeot | Device for automatic locking and automatic unlocking of an actuator such as a thrust cylinder for example, and thrust cylinder equipped with this device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4736561B2 (en) * | 2005-06-22 | 2011-07-27 | 豊和工業株式会社 | Drawdown chuck |
| JP6581165B2 (en) * | 2016-11-25 | 2019-09-25 | アイダエンジニアリング株式会社 | Sliding friction force generation mechanism by fitting and die cushion of press machine |
| EP3332954B1 (en) * | 2016-11-25 | 2023-12-27 | Aida Engineering, Ltd. | Sliding frictional force generation mechanism and die cushion for press machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53147175A (en) * | 1976-11-29 | 1978-12-21 | Hirotaka Seiki Goushi | Cylinder with safety device |
| JPS58501285A (en) * | 1981-11-16 | 1983-08-04 | ヨ−ク・インダストリ−ズ・インコ−ポレ−テッド | New and improved fixings, bearings and actuation devices |
| JPS59208207A (en) * | 1983-05-09 | 1984-11-26 | Toyooki Kogyo Co Ltd | Operating shaft fixing device |
-
1988
- 1988-04-13 JP JP63090688A patent/JPH0718445B2/en not_active Expired - Fee Related
-
1989
- 1989-04-11 WO PCT/JP1989/000389 patent/WO1989009883A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53147175A (en) * | 1976-11-29 | 1978-12-21 | Hirotaka Seiki Goushi | Cylinder with safety device |
| JPS58501285A (en) * | 1981-11-16 | 1983-08-04 | ヨ−ク・インダストリ−ズ・インコ−ポレ−テッド | New and improved fixings, bearings and actuation devices |
| JPS59208207A (en) * | 1983-05-09 | 1984-11-26 | Toyooki Kogyo Co Ltd | Operating shaft fixing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2681651A1 (en) * | 1991-09-24 | 1993-03-26 | Quiri Cie Usines | Self-locking dual-acting hydraulic thrust cylinder |
| EP0534879A1 (en) * | 1991-09-24 | 1993-03-31 | Société des Usines QUIRI & Cie, S.A. | Hydraulic self locking double acting actuator |
| GB2259951A (en) * | 1991-09-24 | 1993-03-31 | Quiri & Cie Usines | Hydraulic jack |
| GB2259951B (en) * | 1991-09-24 | 1995-09-06 | Quiri & Cie Usines | Hydraulic jack |
| FR2685398A1 (en) * | 1991-12-24 | 1993-06-25 | Peugeot | Device for automatic locking and automatic unlocking of an actuator such as a thrust cylinder for example, and thrust cylinder equipped with this device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01264705A (en) | 1989-10-23 |
| JPH0718445B2 (en) | 1995-03-06 |
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