JP2009264410A - Rotary sluice valve - Google Patents

Rotary sluice valve Download PDF

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JP2009264410A
JP2009264410A JP2008111300A JP2008111300A JP2009264410A JP 2009264410 A JP2009264410 A JP 2009264410A JP 2008111300 A JP2008111300 A JP 2008111300A JP 2008111300 A JP2008111300 A JP 2008111300A JP 2009264410 A JP2009264410 A JP 2009264410A
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annular sealing
sealing member
valve
flow path
support shaft
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JP5197124B2 (en
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Hideyuki Shimomura
英之 下村
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Okumura Engineering Corp OKM
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Okumura Engineering Corp OKM
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary sluice valve for allowing easy positioning of a valve plate relative to annular sealing members, and quick assembly/disassembly. <P>SOLUTION: The rotary sluice valve 1 is provided with: a valve plate 3 to be rotated around a supporting shaft; a valve box 5 having a flow path 4; two annular sealing members 6, 7 provided inside the flow path 4 and spaced from each other in the axial direction of the supporting shaft; a displacing means 8 for displacing one annular sealing member 6 from the other annular sealing member 7 in the axial direction; and a bearing part connected to the valve plate 3 for bearing the supporting shaft movably in the axial direction. The displacing means 8 consists of: a female screw 81 formed inside the flow path 4; and a male screw 82 threaded thereto and formed on the outer peripheral face of a set ring 61 of one annular sealing member 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、支軸を中心に回転する弁板で流路を開閉するロータリースルースバルブに関する。   The present invention relates to a rotary sluice valve that opens and closes a flow path with a valve plate that rotates about a support shaft.

図6は、従来例のロータリースルースバルブ100の外観として、ハンドル101、ギアボックス102、コラム103、弁箱104、及びプレートカバー105を表している。コラム103の内部には図7に示す支軸107が軸受され、支軸107に弁板108が固定されている。ハンドル101が操作されると、これに従ってギアボックス102に内装された減速機から支軸107へ回転力が伝達され、支軸107と共に矢印θ方向に回転する弁板108が、弁箱104の流路106を開閉する。   FIG. 6 shows a handle 101, a gear box 102, a column 103, a valve box 104, and a plate cover 105 as appearances of the rotary sluice valve 100 of the conventional example. A support shaft 107 shown in FIG. 7 is supported inside the column 103, and a valve plate 108 is fixed to the support shaft 107. When the handle 101 is operated, the rotational force is transmitted from the reduction gear built in the gear box 102 to the support shaft 107 according to this, and the valve plate 108 rotating in the direction of the arrow θ together with the support shaft 107 causes the valve box 104 to flow. The path 106 is opened and closed.

流路106の内側には、図に表れていないシートリング等から成る2つの環形封止部材が、流路106を流体が流れる方向に互いに隔たるよう配置されている。弁板108は、流路106を閉じる姿勢をとるとき上記2つの環形封止部材の間に進入し、流路106を開放する姿勢をとるときプレートカバー105に収まる。
特開平5−172258号公報 特開2000−240821号公報
Inside the flow path 106, two ring-shaped sealing members made of a sheet ring or the like not shown in the figure are arranged so as to be separated from each other in the direction in which the fluid flows. The valve plate 108 enters between the two annular sealing members when taking the posture of closing the flow path 106, and fits into the plate cover 105 when taking the posture of opening the flow path 106.
JP-A-5-172258 JP 2000-240821 A

しかしながら、2つの環形封止部材が弁箱104に位置決めされるのに対して、弁板108は支軸107に固定されるので、2つの環形封止部材と弁板108とを良好に密着させようとして、これらの部材を適切に配置するのは難しい作業である。このため、ロータリースルースバルブ100の製造過程で、その組立てに手間取るという問題がある。また、ロータリースルースバルブ100をメンテナンス等のために分解した後、これを組立てる場合も同様の問題が繰り返される。   However, while the two annular sealing members are positioned on the valve box 104, the valve plate 108 is fixed to the support shaft 107, so that the two annular sealing members and the valve plate 108 are in good contact with each other. As such, it is a difficult task to properly arrange these members. For this reason, there is a problem that it takes time to assemble the rotary sluice valve 100 during the manufacturing process. The same problem is repeated when the rotary sluice valve 100 is disassembled for maintenance or the like and then assembled.

そこで、本発明は、弁板と環形封止部材との相対的な位置決めが容易であり、しかも分解及び組立てを手早く行えるロータリースルースバルブを提供することを目的とする。   Accordingly, an object of the present invention is to provide a rotary sluice valve in which the relative positioning of the valve plate and the ring-shaped sealing member is easy, and disassembly and assembly can be performed quickly.

本発明に係るロータリースルースバルブは、支軸を中心に回転する弁板と、流路を有する弁箱と、前記流路の内側に設けられ前記支軸の軸方向に互いに間隙を隔てる2つの環形封止部材とを備え、前記弁板が前記2つの環形封止部材の間に進入し前記流路を閉じる姿勢、又は前記2つの環形封止部材の間から退出し前記流路を開く姿勢になるものであって、前記2つの環形封止部材のうち一方の環形封止部材を前記支軸の軸方向に変位させる変位手段と、前記支軸をその軸方向に移動自在に軸受する軸受部とを備え、前記変位手段が、前記一方の環形封止部材を、前記2つの環形封止部材のうち他方の環形封止部材に向けて変位させ、前記流路を閉じる姿勢の弁板が、前記一方の環形封止部材に従って前記他方の環形封止部材に押付けられることを特徴とする。   A rotary sluice valve according to the present invention includes a valve plate that rotates around a support shaft, a valve box having a flow path, and two annular shapes that are provided inside the flow path and that are spaced apart from each other in the axial direction of the support shaft. A posture in which the valve plate enters between the two annular sealing members and closes the flow path, or exits from between the two annular sealing members and opens the flow path. A displacement means for displacing one annular sealing member of the two annular sealing members in the axial direction of the support shaft, and a bearing portion for bearing the support shaft movably in the axial direction. And the displacing means displaces the one annular sealing member toward the other annular sealing member of the two annular sealing members, and a valve plate in a posture to close the flow path, Pressed against the other annular sealing member according to the one annular sealing member And wherein the door.

更に、本発明に係るロータリースルースバルブは、前記変位手段が、前記流路の内側に形成された雌ねじと、前記一方の環形封止部材に形成された雄ねじとを備え、前記流路の雌ねじに前記一方の環形封止部材の雄ねじを螺合させたことを特徴とする。   Further, in the rotary sluice valve according to the present invention, the displacement means includes an internal thread formed inside the flow path and an external thread formed on the one annular sealing member, and the internal thread of the flow path The male screw of the one annular sealing member is screwed.

更に、本発明に係るロータリースルースバルブは、前記弁板が前記支軸の軸方向に途中に連結され、前記軸受部が、前記支軸を軸受し且つ互いの端面で前記弁板を挟む2つのスリーブを備え、前記弁板と前記2つのスリーブのそれぞれの端面との間に、前記支軸の軸方向の移動を許容する隙間を設けたことを特徴とする。   Further, in the rotary sluice valve according to the present invention, the valve plate is connected midway in the axial direction of the support shaft, and the bearing portion supports the support shaft and sandwiches the valve plate between the end faces of each other. A sleeve is provided, and a gap is provided between the valve plate and each end face of the two sleeves to allow axial movement of the support shaft.

本発明に係るロータリースルースバルブの変位手段によれば、一方の環形封止部材を次のように変位させることができる。例えば、当該ロータリースルースバルブを分解するとき、一方の環形封止部材を他方の環形封止部材から離れるよう後退させることにより、一方の環形封止部材を弁箱から取外す作業を手際良く行うことができる。また、このように一方の環形封止部材を取外せることは、弁箱の流路を清掃し、又は2つの環形封止部材を交換する場合にも便利である。   According to the displacement means of the rotary sluice valve according to the present invention, one annular sealing member can be displaced as follows. For example, when disassembling the rotary sluice valve, it is possible to perform the work of removing one annular sealing member from the valve box by retreating one annular sealing member away from the other annular sealing member. it can. In addition, the removal of one annular sealing member in this way is also convenient when the flow path of the valve box is cleaned or the two annular sealing members are replaced.

反対に、当該ロータリースルースバルブを組立てるとき、弁板に流路を閉じる姿勢を保たせ、一方の環形封止部材を他方の環形封止部材へ向けて前進させる。これにより、弁板は一方の環形封止部材に従って他方の環形封止部材に押付けられるので、2つの環形封止部材と弁板とを個別に位置決めするような雑作を伴なうことなく、これらの部材同士を良好に密接させ、当該ロータリースルースバルブが流体を制止する性能を最大限に発揮することができる。   On the other hand, when the rotary sluice valve is assembled, the valve plate is maintained in the posture of closing the flow path, and one annular sealing member is advanced toward the other annular sealing member. As a result, the valve plate is pressed against the other annular sealing member according to the one annular sealing member, so that the two annular sealing members and the valve plate are not accompanied by a miscellaneous operation such as positioning them individually. These members can be brought into close contact with each other and the performance of the rotary sluice valve to restrain the fluid can be exhibited to the maximum.

更に、変位手段が、流路の雌ねじに一方の環形封止部材の雄ねじを螺合したものである場合、一方の環形封止部材をその周方向に回転させることにより、一方の環形封止部材を、上記のように変位させることができる。しかも、一方の環形封止部材が他方の環形封止部材へ前進するように、一方の環形封止部材をその周方向に回転させる力を加減するだけで、2つの環形封止部材と弁板とが相互に密接する圧力を所望に増減することができる。   Further, when the displacement means is one in which the male screw of one annular sealing member is screwed to the female screw of the flow path, one annular sealing member is rotated by rotating the one annular sealing member in the circumferential direction thereof. Can be displaced as described above. In addition, the two annular sealing members and the valve plate can be obtained simply by adjusting the force to rotate the one annular sealing member in the circumferential direction so that the one annular sealing member advances to the other annular sealing member. Can be increased or decreased as desired.

更に、本発明に係るロータリースルースバルブによれば、支軸の軸方向に途中に連結された弁板と、2つのスリーブのそれぞれの端面との間に、支軸の軸方向の移動を許容する隙間を設けているので、一方の環形封止部材の変位に従って弁板も移動することができる。このため、当該ロータリースルースバルブによれば、一方の環形封止部材が変位しても弁板に無理な力が加わることはなく、弁板を支軸に固定する位置を調整しなくて済むという利点を得ることができる。   Further, according to the rotary sluice valve of the present invention, the axial movement of the support shaft is allowed between the valve plate connected in the axial direction of the support shaft and the respective end surfaces of the two sleeves. Since the gap is provided, the valve plate can also move according to the displacement of one of the annular sealing members. For this reason, according to the rotary sluice valve, even if one of the annular sealing members is displaced, an excessive force is not applied to the valve plate, and it is not necessary to adjust the position for fixing the valve plate to the support shaft. Benefits can be gained.

図1乃至図4は、本発明の実施形態に係るロータリースルースバルブ1を示している。ロータリースルースバルブ1は、支軸2を中心に回転する弁板3と、円形の流路4を有する弁箱5と、流路4の内側に設けられ支軸2の軸方向に互いに隔たる2つの環形封止部材6,7と、一方の環形封止部材6を支軸2の軸方向に変位させる変位手段8と、弁箱5に接続され支軸2を軸方向に移動自在に軸受する軸受部9とを備える。   1 to 4 show a rotary sluice valve 1 according to an embodiment of the present invention. The rotary sluice valve 1 includes a valve plate 3 that rotates about a support shaft 2, a valve box 5 having a circular flow path 4, and 2 provided inside the flow path 4 and separated from each other in the axial direction of the support shaft 2. One ring-shaped sealing member 6, 7, a displacement means 8 for displacing one ring-shaped sealing member 6 in the axial direction of the support shaft 2, and a bearing connected to the valve box 5 so as to be movable in the axial direction. The bearing part 9 is provided.

図1,2の上下方向は、図3,4に表れた支軸2の軸方向に一致するが、ロータリースルースバルブ1の姿勢が図示の向きに限定されることはない。これらの図面を参照しながら以下にロータリースルースバルブ1について説明する。また、自明の機械要素、又は従来の技術として既に述べた要素には、引続き同じ呼称を用いるものとする。   The vertical direction of FIGS. 1 and 2 coincides with the axial direction of the support shaft 2 shown in FIGS. 3 and 4, but the posture of the rotary sluice valve 1 is not limited to the illustrated direction. The rotary sluice valve 1 will be described below with reference to these drawings. In addition, the same designations will continue to be used for obvious machine elements or elements already described in the prior art.

一方の環形封止部材6は、流路4の内側に沿って周回するセットリング61の溝部にシートリング62を嵌入させたものである。他方の環形封止部材7は、流路4の内側に沿って周回するセットリング71の溝部に、シートリング72を嵌入させたものである。セットリング71は、ボルト73によって弁箱5に固定されている。シートリング62,72の材質としては、弁板3の表裏にそれぞれ密着できものであれば良く、金属、合成樹脂、又はゴム等を適用することができる。   One annular sealing member 6 is obtained by inserting a seat ring 62 into a groove portion of a set ring 61 that circulates along the inside of the flow path 4. The other ring-shaped sealing member 7 has a seat ring 72 fitted in a groove portion of a set ring 71 that circulates along the inside of the flow path 4. The set ring 71 is fixed to the valve box 5 with a bolt 73. The material of the seat rings 62 and 72 may be any material that can be in close contact with the front and back of the valve plate 3, and metal, synthetic resin, rubber, or the like can be applied.

変位手段8は、弁箱5の流路4の内側に形成した雌ねじ81に、一方の環形封止部材6のセットリング61の外周面に形成した雄ねじ82を螺合したものである。ロックボルト83が、セットリング61を径方向に貫くねじ孔に螺合し、弁箱5に突き当てられている。これにより、セットリング61は弁箱5に固定されているので、セットリング61が流路4の周方向に不用意に回転することはない。   The displacement means 8 is formed by screwing a male screw 82 formed on the outer peripheral surface of the set ring 61 of one annular sealing member 6 into a female screw 81 formed inside the flow path 4 of the valve box 5. A lock bolt 83 is screwed into a screw hole penetrating the set ring 61 in the radial direction and is abutted against the valve box 5. Thereby, since the set ring 61 is fixed to the valve box 5, the set ring 61 does not rotate carelessly in the circumferential direction of the flow path 4.

弁板3は、その基端の軸孔31に支軸2が通され、支軸2の軸方向の途中に連結部材32を介して連結されている。連結部材32の内側は支軸2の側面部21に掛止めされているので、連結部材32は支軸2と共に回転できる。更に、弁板3を貫くボルト33が連結部材32に締付けられているので、ロータリースルースバルブ1のハンドルが操作されると、支軸2に減速機から回転力が伝達され、支軸2と共に弁板3が回転する。これにより、弁板3が2つの環形封止部材6,7の間に進入し流路4を閉じる姿勢、又は2つの環形封止部材6,7の間から矢印θ方向へ退出し流路4を開く姿勢になる。   In the valve plate 3, the support shaft 2 is passed through the shaft hole 31 at the base end, and is connected through a connecting member 32 in the middle of the support shaft 2 in the axial direction. Since the inside of the connecting member 32 is hooked on the side surface portion 21 of the support shaft 2, the connecting member 32 can rotate together with the support shaft 2. Further, since the bolt 33 penetrating the valve plate 3 is fastened to the connecting member 32, when the handle of the rotary sluice valve 1 is operated, the rotational force is transmitted from the reduction gear to the support shaft 2, and the valve together with the support shaft 2. The plate 3 rotates. As a result, the valve plate 3 enters between the two annular sealing members 6 and 7 and closes the flow path 4, or exits between the two annular sealing members 6 and 7 in the direction of the arrow θ. Open posture.

支軸2の上端部は角柱状に形成されており、支軸2は、その上端部に係合するボスを介して、上記の回転力が伝達される。このため、支軸2は、後述の組立て時に、コラム51及び減速機に対して軸方向に移動することができる。符号22は、グランドパッキンを指している。   The upper end portion of the support shaft 2 is formed in a prismatic shape, and the rotation force is transmitted to the support shaft 2 via a boss that engages with the upper end portion. For this reason, the support shaft 2 can move in the axial direction with respect to the column 51 and the speed reducer during assembly described later. Reference numeral 22 denotes a gland packing.

軸受部9は、支軸2が挿通され且つ互いの端面10の間に弁板3を挟む2つのスリーブ11,12をコラム51の内部に設け、連結部材32とスリーブ11の端面10との間、及び弁板3とスリーブ12の端面10との間に、それぞれ隙間tを設けている。これらの隙間tによって支軸2は軸方向の移動が許容される。スリーブ11は、弁箱5と一体に鋳造され、ピボッド軸受の役割を果す部位であるので、支軸2の下端は弁箱5から浮き上がれる。スリーブ12はコラム51と一体に鋳造され、コラム51は弁箱5にボルト等で連結されている。   The bearing portion 9 is provided with two sleeves 11 and 12 in which the support shaft 2 is inserted and the valve plate 3 is sandwiched between the end surfaces 10 inside the column 51, and between the connecting member 32 and the end surface 10 of the sleeve 11. And gaps t are provided between the valve plate 3 and the end face 10 of the sleeve 12, respectively. These clearances t allow the support shaft 2 to move in the axial direction. Since the sleeve 11 is cast integrally with the valve box 5 and serves as a pivot bearing, the lower end of the support shaft 2 is lifted from the valve box 5. The sleeve 12 is cast integrally with the column 51, and the column 51 is connected to the valve box 5 with bolts or the like.

ロータリースルースバルブ1を分解するには、先ずロックボルト83を緩め、一方の環形封止部材6が他方の環形封止部材7から離れるように、一方の環形封止部材6を流路4の周方向に回転させる。更に一方の環形封止部材6を回転させると、一方の環形封止部材6が弁箱5から離脱する。また、他方の環形封止部材7の取外しは、ボルト73を緩めることで簡単に行える。このように、2つの環形封止部材6,7を弁箱5から取外す作業を手際良く行えるので、流路4及び2つの環形封止部材6,7の清掃、又はシートリング72の交換を行うのに便利である。シートリング72に比べシートリング62を交換する頻度は少ないが、この場合も同様の利点がある。   In order to disassemble the rotary sluice valve 1, first, the lock bolt 83 is loosened, and one annular sealing member 6 is moved around the flow path 4 so that one annular sealing member 6 is separated from the other annular sealing member 7. Rotate in the direction. When one annular sealing member 6 is further rotated, one annular sealing member 6 is detached from the valve box 5. Further, the other annular sealing member 7 can be easily removed by loosening the bolt 73. As described above, since the operation of removing the two annular sealing members 6 and 7 from the valve box 5 can be performed skillfully, the flow path 4 and the two annular sealing members 6 and 7 are cleaned or the seat ring 72 is replaced. Convenient for. Although the frequency of replacing the seat ring 62 is less than that of the seat ring 72, this case also has the same advantage.

反対に、ロータリースルースバルブ1を組立てるときは、他方の環形封止部材7を弁箱5に取付け、ボルト73を締付ける。そして、弁板3に流路4を閉じる姿勢を保たせ、一方の環形封止部材6が他方の環形封止部材7へ前進するように、一方の環形封止部材6を流路4の周方向に回転させる。このように一方の環形封止部材6が前進する過程で、一方の環形封止部材6が弁板3に図中の下方から突当たり、更に弁板3を他方の環形封止部材7に押付ける。このため、弁板3と環形封止部材6,7とを弁箱5に対して個別に位置決めする雑作を伴なうことなく、これらの部材同士を相互に密接させ、ロータリースルースバルブ1が流体を制止する性能を最大限に発揮することができる。   On the contrary, when the rotary sluice valve 1 is assembled, the other annular sealing member 7 is attached to the valve box 5 and the bolt 73 is tightened. Then, the valve plate 3 is maintained in the posture of closing the flow path 4, and the one annular sealing member 6 is moved around the flow path 4 so that the one annular sealing member 6 moves forward to the other annular sealing member 7. Rotate in the direction. Thus, in the process in which one annular sealing member 6 moves forward, one annular sealing member 6 hits the valve plate 3 from below in the figure, and further pushes the valve plate 3 against the other annular sealing member 7. wear. For this reason, these members are brought into close contact with each other without accompanying the work of individually positioning the valve plate 3 and the ring-shaped sealing members 6 and 7 with respect to the valve box 5, and the rotary sluice valve 1 is fluidized. It is possible to maximize the performance of stopping

しかも、上記のように弁板3が他方の環形封止部材7に押付けられるとき、弁板3と共に支軸2が軸方向に移動できるので、一方の環形封止部材6が変位しても弁板3に無理な力が加わることがなく、弁板3を支軸2に固定する位置を調整しなくて済むという利点がある。また、一方の環形封止部材6を流路4の周方向に回転させる力を作業者が加減するだけで、2つの環形封止部材6,7と弁板3とが相互に密接する圧力を適切に増減することができる。最後に、この圧力が所望の強さに達したところで、ロックボルト83が締付けられる。   In addition, when the valve plate 3 is pressed against the other annular sealing member 7 as described above, the support shaft 2 can move in the axial direction together with the valve plate 3, so that even if one annular sealing member 6 is displaced, the valve There is an advantage that an excessive force is not applied to the plate 3 and the position for fixing the valve plate 3 to the support shaft 2 does not need to be adjusted. In addition, the operator can adjust the pressure by which the two annular sealing members 6 and 7 and the valve plate 3 are in close contact with each other only by adjusting the force for rotating one annular sealing member 6 in the circumferential direction of the flow path 4. Can be increased or decreased appropriately. Finally, when this pressure reaches a desired strength, the lock bolt 83 is tightened.

尚、本発明は、その趣旨を逸脱しない範囲で当業者の知識に基づいて種々なる改良、修正、変形を加えた態様で実施できる。例えば、図5に示すように、変位手段8として、複数のボルト84を適用しても良い。ボルト84は、弁箱5を軸方向に貫くねじ孔に螺合しているので、ボルト84を弁箱5に締付ければ、これに従いセットリング6が弁板3に押付けられる。また、図に表れていないロックナットを用いて、個々のボルト84を弁箱5に固定しても良い。   It should be noted that the present invention can be implemented in a mode in which various improvements, modifications, and variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. For example, a plurality of bolts 84 may be applied as the displacement means 8 as shown in FIG. Since the bolt 84 is screwed into a screw hole penetrating the valve box 5 in the axial direction, when the bolt 84 is fastened to the valve box 5, the set ring 6 is pressed against the valve plate 3 accordingly. Moreover, you may fix each volt | bolt 84 to the valve box 5 using the lock nut which does not appear in a figure.

本発明に係るロータリースルースバルブは、流路の開閉に限らず、例えば酸化プロピレン等を輸送するケミカル船の舶用弁として利用することができる。   The rotary sluice valve according to the present invention is not limited to opening and closing of the flow path but can be used as a marine valve of a chemical ship that transports propylene oxide or the like, for example.

本発明の実施形態に係るロータリースルースバルブの要部を示す斜視図。The perspective view which shows the principal part of the rotary sluice valve which concerns on embodiment of this invention. 本発明の実施形態に係るロータリースルースバルブの要部を示す断面図。Sectional drawing which shows the principal part of the rotary sluice valve which concerns on embodiment of this invention. 本発明の実施形態に係るロータリースルースバルブの他の要部を示す斜視図。The perspective view which shows the other principal part of the rotary sluice valve which concerns on embodiment of this invention. 本発明の実施形態に係るロータリースルースバルブの他の要部を示す断面図。Sectional drawing which shows the other principal part of the rotary sluice valve which concerns on embodiment of this invention. 本発明の実施形態に係るロータリースルースバルブの要部の変形例を示す断面図。Sectional drawing which shows the modification of the principal part of the rotary sluice valve which concerns on embodiment of this invention. 従来例のロータリースルースバルブの斜視図。The perspective view of the rotary sluice valve of a prior art example. 従来例のロータリースルースバルブの動作を説明する概略図。Schematic explaining operation | movement of the rotary sluice valve of a prior art example.

符号の説明Explanation of symbols

1:ロータリースルースバルブ
2:支軸
3:弁板
4:流路
5:弁箱
6,7:環形封止部材
8:変位手段
9:軸受部
10:端面
11,12:スリーブ
81:雌ねじ
82:雄ねじ
t:隙間
1: Rotary sluice valve 2: Support shaft 3: Valve plate 4: Flow path 5: Valve box 6, 7: Ring-shaped sealing member 8: Displacement means 9: Bearing portion 10: End face 11, 12: Sleeve 81: Female screw 82: Male thread t: Clearance

Claims (3)

支軸を中心に回転する弁板と、流路を有する弁箱と、前記流路の内側に設けられ前記支軸の軸方向に互いに間隙を隔てる2つの環形封止部材とを備え、前記弁板が前記2つの環形封止部材の間に進入し前記流路を閉じる姿勢、又は前記2つの環形封止部材の間から退出し前記流路を開く姿勢になるロータリースルースバルブであって、
前記2つの環形封止部材のうち一方の環形封止部材を前記支軸の軸方向に変位させる変位手段と、前記支軸をその軸方向に移動自在に軸受する軸受部とを備え、前記変位手段が、前記一方の環形封止部材を、前記2つの環形封止部材のうち他方の環形封止部材に向けて変位させ、前記流路を閉じる姿勢の弁板が、前記一方の環形封止部材に従って前記他方の環形封止部材に押付けられることを特徴とするロータリースルースバルブ。
A valve plate rotating about a support shaft; a valve box having a flow path; and two annular sealing members provided inside the flow path and spaced apart from each other in the axial direction of the support shaft. A rotary sluice valve in which a plate enters between the two annular sealing members and closes the flow path, or exits between the two annular sealing members and opens the flow path,
Displacement means for displacing one annular sealing member of the two annular sealing members in the axial direction of the support shaft, and a bearing portion for bearing the support shaft movably in the axial direction, the displacement Means for displacing the one annular sealing member toward the other annular sealing member of the two annular sealing members, and a valve plate in a posture to close the flow path is the one annular sealing member A rotary sluice valve that is pressed against the other annular sealing member according to a member.
前記変位手段が、前記流路の内側に形成された雌ねじと、前記一方の環形封止部材に形成された雄ねじとを備え、前記流路の雌ねじに前記一方の環形封止部材の雄ねじを螺合させたことを特徴とする請求項1に記載のロータリースルースバルブ。   The displacement means includes an internal thread formed inside the flow path and a male thread formed on the one annular sealing member, and the external thread of the one annular sealing member is screwed into the internal thread of the flow path. The rotary sluice valve according to claim 1, wherein the rotary sluice valves are combined. 前記弁板が前記支軸の軸方向に途中に連結され、前記軸受部が、前記支軸を軸受し且つ互いの端面で前記弁板を挟む2つのスリーブを備え、前記弁板と前記2つのスリーブのそれぞれの端面との間に、前記支軸の軸方向の移動を許容する隙間を設けたことを特徴とする請求項1又は2に記載のロータリースルースバルブ。   The valve plate is connected midway in the axial direction of the support shaft, and the bearing portion includes two sleeves that support the support shaft and sandwich the valve plate between the end surfaces of the support plate, the valve plate and the two 3. The rotary sluice valve according to claim 1, wherein a clearance allowing axial movement of the support shaft is provided between each end face of the sleeve. 4.
JP2008111300A 2008-04-22 2008-04-22 Rotary sluice valve Active JP5197124B2 (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5732266U (en) * 1980-08-01 1982-02-19
JPS63231071A (en) * 1987-03-18 1988-09-27 Kikkoman Corp Pressure resistant shutoff valve
JPH0338464U (en) * 1989-08-25 1991-04-15
JPH05164255A (en) * 1991-12-18 1993-06-29 Smc Corp Gate valve
JPH05172258A (en) * 1991-12-24 1993-07-09 Tokyo Gas Co Ltd Gate valve of rotary sliding gland structure
JPH08135809A (en) * 1994-11-11 1996-05-31 Kubota Corp Through conduit type gate valve
JP2000240821A (en) * 1999-02-25 2000-09-08 Kubota Corp Seat ring fitting structure for gate valve
JP2004108471A (en) * 2002-09-18 2004-04-08 Smc Corp Gate valve with flow control mechanism
JP2004225786A (en) * 2003-01-22 2004-08-12 Akatake Engineering Kk On-off valve for powder storage tank
JP2006125616A (en) * 2004-09-30 2006-05-18 Asahi Organic Chem Ind Co Ltd Ball valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5732266U (en) * 1980-08-01 1982-02-19
JPS63231071A (en) * 1987-03-18 1988-09-27 Kikkoman Corp Pressure resistant shutoff valve
JPH0338464U (en) * 1989-08-25 1991-04-15
JPH05164255A (en) * 1991-12-18 1993-06-29 Smc Corp Gate valve
JPH05172258A (en) * 1991-12-24 1993-07-09 Tokyo Gas Co Ltd Gate valve of rotary sliding gland structure
JPH08135809A (en) * 1994-11-11 1996-05-31 Kubota Corp Through conduit type gate valve
JP2000240821A (en) * 1999-02-25 2000-09-08 Kubota Corp Seat ring fitting structure for gate valve
JP2004108471A (en) * 2002-09-18 2004-04-08 Smc Corp Gate valve with flow control mechanism
JP2004225786A (en) * 2003-01-22 2004-08-12 Akatake Engineering Kk On-off valve for powder storage tank
JP2006125616A (en) * 2004-09-30 2006-05-18 Asahi Organic Chem Ind Co Ltd Ball valve

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