JP2003139093A - Clearance adjusting mechanism of moving blade and axial rotary machine and compressor - Google Patents
Clearance adjusting mechanism of moving blade and axial rotary machine and compressorInfo
- Publication number
- JP2003139093A JP2003139093A JP2001333837A JP2001333837A JP2003139093A JP 2003139093 A JP2003139093 A JP 2003139093A JP 2001333837 A JP2001333837 A JP 2001333837A JP 2001333837 A JP2001333837 A JP 2001333837A JP 2003139093 A JP2003139093 A JP 2003139093A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- gap
- moving blade
- clearance
- moving
- 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.)
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、動翼の先端と車室
内壁とがロータの軸方向に傾斜する傾斜面で対向する軸
流回転機械、例えば、圧縮機における動翼と車室内壁と
の隙間を調整する隙間調整機構及び隙間調整機構を備え
た軸流回転機械及び圧縮機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an axial flow rotary machine in which a tip of a moving blade and a vehicle interior wall face each other on an inclined surface inclined in the axial direction of a rotor, for example, a moving blade and a vehicle interior wall in a compressor. The present invention relates to a gap adjusting mechanism for adjusting the gap of the above, and an axial flow rotary machine and a compressor provided with the gap adjusting mechanism.
【０００２】[0002]
【従来の技術】動翼の先端と車室内壁とがロータの軸方
向に傾斜する傾斜面で対向する軸流回転機械である圧縮
機では、動翼の先端と車室内壁との隙間の大きさにより
性能が左右される。隙間は小さい程流体の漏れが少なく
効率良く運転が行えるが、狭すぎると動翼の先端と車室
内壁が接触して破損する虞がある。このため、動翼の先
端と車室内壁との隙間は、流体の漏れを最小限に抑えた
状態で、且つ、接触の虞がない隙間に設定されている。
実際には、圧縮機の起動時から定常運転に至るまでに固
定側の車室と回転側の動翼とが熱膨張の状況が異なるた
め、全ての運転領域で流体の漏れを最小限に抑え、尚且
つ、接触の虞をなくすように隙間を設定することは非常
に困難である。2. Description of the Related Art In a compressor which is an axial flow rotary machine in which a tip of a moving blade and an inner wall of a vehicle interior face each other on an inclined surface inclined in the axial direction of a rotor, a compressor has a large gap between the tip of the moving blade and the inner wall of the vehicle interior. The performance depends on it. The smaller the gap is, the less the fluid leaks and the more efficient the operation can be performed. However, if the gap is too narrow, the tip of the moving blade and the inner wall of the vehicle compartment may be damaged. Therefore, the gap between the tip of the moving blade and the inner wall of the vehicle interior is set to a state in which fluid leakage is minimized and there is no risk of contact.
In practice, the thermal expansion of the fixed-side casing and the rotating-side rotor blades is different from the time when the compressor starts up to the normal operation, so fluid leakage is minimized in all operating regions. Moreover, it is very difficult to set the gap so as to eliminate the risk of contact.
【０００３】このため、動翼に対向する車室側に縮径自
在な調整部材を設け、運転状況等により調整部材を拡縮
して動翼先端との隙間を所定状態に保持する隙間調整機
構が知られている（例えば、特許第3035842 号等参
照）。調整部材を拡縮して動翼先端と車室側との隙間を
所定状態に保持することで、全ての運転領域で流体の漏
れを最小限に抑え、且つ、接触の虞をなくすように隙間
を設定することが可能となる。For this reason, there is provided a clearance adjusting mechanism which is provided with an adjustable member whose diameter can be freely reduced on the side of the vehicle interior facing the moving blades and which expands or contracts the adjusting members according to operating conditions to keep the clearance between the moving blade tip and the blade in a predetermined state. It is known (for example, see Japanese Patent No. 3035842). By maintaining the clearance between the tip of the moving blade and the cabin side in a predetermined state by expanding and contracting the adjustment member, fluid leakage can be minimized in all operating areas, and the clearance can be eliminated to eliminate the risk of contact. It becomes possible to set.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
隙間調整機構は、調整部材を拡縮して動翼先端との隙間
を調整しているので、動翼の全周にわたって隙間を調整
するためには、調整部材の構造や拡縮のための機構が複
雑になる問題があった。また、精度よく隙間調整を行う
ためには調整部材を周方向に多数分割し、それぞれに対
して拡縮のための機構を考慮する必要があり、部品点数
が多くなる問題があった。However, since the conventional clearance adjusting mechanism adjusts the clearance with the tip of the moving blade by expanding and contracting the adjusting member, it is necessary to adjust the clearance over the entire circumference of the moving blade. However, there has been a problem that the structure of the adjusting member and the mechanism for expansion and contraction become complicated. In addition, in order to accurately adjust the gap, it is necessary to divide the adjustment member into a large number in the circumferential direction and consider a mechanism for expansion / contraction for each of them, which causes a problem of increasing the number of parts.
【０００５】本発明は上記状況に鑑みてなされたもの
で、少ない部品点数の簡単な構造で動翼先端と車室内壁
との隙間を最適に調整することができる動翼の隙間調整
機構を提供することを目的とする。The present invention has been made in view of the above circumstances, and provides a clearance adjusting mechanism for a moving blade capable of optimally adjusting the clearance between the tip of the moving blade and the vehicle interior wall with a simple structure having a small number of parts. The purpose is to do.
【０００６】また、本発明は上記状況に鑑みてなされた
もので、少ない部品点数の簡単な構造で動翼先端と車室
内壁との隙間を最適に調整することができる動翼の隙間
調整機構を備えた軸流回転機械及び圧縮機を提供するこ
とを目的とする。Further, the present invention has been made in view of the above situation, and a moving blade clearance adjusting mechanism capable of optimally adjusting the clearance between the moving blade tip and the vehicle interior wall with a simple structure having a small number of parts. An object of the present invention is to provide an axial-flow rotary machine and a compressor including the.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
の本発明の動翼の隙間調整機構の構成は、ロータの周方
向に動翼が配列され、動翼の先端と車室の内壁側とがロ
ータの軸方向に傾斜する傾斜面で対向する軸流回転機械
に適用されるものであって、車室内壁に対してロータの
軸方向に相対的に動翼を移動自在に構成し、動翼の先端
と車室内壁との隙間を調整自在としたことを特徴とす
る。SUMMARY OF THE INVENTION In order to achieve the above object, the structure of the moving blade clearance adjusting mechanism of the present invention is such that the moving blades are arranged in the circumferential direction of the rotor, and the tips of the moving blades and the inner wall side of the vehicle interior Is applied to an axial-flow rotary machine that is opposed to each other with an inclined surface inclined in the axial direction of the rotor, and the moving blades are configured to be movable relative to the inner wall of the vehicle in the axial direction of the rotor, The feature is that the gap between the tip of the moving blade and the interior wall of the vehicle is adjustable.
【０００８】また、上記目的を達成するための本発明の
動翼の隙間調整機構の構成は、ロータの周方向に動翼が
配列され、動翼の先端と車室の内壁側とがロータの軸方
向に傾斜する傾斜面で対向する軸流回転機械に適用され
るものであって、動翼の対向部位における車室内壁にロ
ータの軸方向に移動自在に隙間調整部材と設け、隙間調
整部材の内周面を動翼先端の傾斜に対応して漸次小径に
形成し、隙間調整部材を任意の位置に移動位置決めして
動翼先端と内周面との隙間を所定隙間に保持する駆動手
段を備えたことを特徴とする。In order to achieve the above object, the structure of the moving blade clearance adjusting mechanism of the present invention is such that the moving blades are arranged in the circumferential direction of the rotor, and the tips of the moving blades and the inner wall side of the passenger compartment of the rotor are The present invention is applied to an axial flow rotary machine that is opposed to each other with an inclined surface that is inclined in the axial direction, and is provided with a gap adjusting member movably in the axial direction of a rotor on a vehicle interior wall at a facing portion of moving blades. Drive means for forming the inner peripheral surface of the blade gradually smaller in diameter corresponding to the inclination of the blade tip, and moving and positioning the gap adjusting member to an arbitrary position to maintain the gap between the blade tip and the inner peripheral surface at a predetermined gap. It is characterized by having.
【０００９】そして、隙間調整部材の内周面は複数段の
動翼先端にわたって配されていることを特徴とする。ま
た、動翼先端と隙間調整部材の内周面との隙間の状況を
導出する状況導出手段を備え、状況導出手段の導出状況
により駆動手段の駆動を制御して動翼先端と内周面との
隙間を所定隙間に保持させる制御手段を備えたことを特
徴とする。また、状況導出手段は動翼先端と隙間調整部
材の内周面との隙間を検出するギャップセンサであると
共に、駆動手段は流体圧アクチュエータであり、制御手
段には、ギャップセンサで検出される隙間値が所定の値
になるように流体圧アクチュエータを駆動させる機能が
備えられていることを特徴とする。Further, the inner peripheral surface of the gap adjusting member is characterized in that it is arranged over a plurality of stages of blade tips. In addition, a situation deriving means for deriving the situation of the gap between the blade tip and the inner peripheral surface of the gap adjusting member is provided, and the drive of the drive means is controlled by the situation of the situation deriving means to drive the blade tip and the inner peripheral surface. It is characterized in that it is provided with a control means for keeping the gap of (1) at a predetermined gap. The situation deriving means is a gap sensor that detects a gap between the tip of the moving blade and the inner peripheral surface of the gap adjusting member, the driving means is a fluid pressure actuator, and the control means is a gap detected by the gap sensor. It is characterized by having a function of driving the fluid pressure actuator so that the value becomes a predetermined value.
【００１０】また、上記目的を達成するための本発明の
軸流回転機械の構成は、車室側に回転自在に支持される
ロータと、ロータの軸方向に多段に配列され請求項１乃
至請求項４のいずれか一項に記載の隙間調整機構が備え
られ先端と車室の内壁とがロータの軸方向に傾斜する傾
斜面で対向する動翼と、動翼の間に配され車室側に保持
される静翼とからなることを特徴とする。In order to achieve the above object, the axial flow rotary machine according to the present invention has a structure in which a rotor rotatably supported on the passenger compartment side and a plurality of stages are arranged in the axial direction of the rotor. Item 5 is provided with the gap adjusting mechanism, and the tip end and the inner wall of the vehicle compartment are opposed to each other with an inclined surface inclined in the axial direction of the rotor; It is characterized in that it consists of a stationary vane held by.
【００１１】また、上記目的を達成するための本発明の
圧縮機の構成は、車室側に回転自在に支持されるロータ
と、ロータの軸方向に多段に配列され請求項１乃至請求
項４のいずれか一項に記載の隙間調整機構が備えられ先
端と車室の内壁とがロータの軸方向に傾斜する傾斜面で
対向する動翼と、動翼の間に配され車室側に保持される
静翼とからなることを特徴とする。According to another aspect of the present invention, there is provided a compressor according to the present invention, wherein a rotor is rotatably supported on a passenger compartment side, and the rotor is arranged in multiple stages in an axial direction of the rotor. And a moving blade that is provided with the gap adjusting mechanism according to any one of claims 1 to 3 and has its tip end and the inner wall of the vehicle chamber facing each other with an inclined surface that is inclined in the axial direction of the rotor, and is disposed between the moving blades and is retained on the vehicle interior side. It is characterized by consisting of a stationary vane.
【００１２】[0012]
【発明の実施の形態】図１には本発明が適用される圧縮
機の全体構成、図２には本発明の第１実施形態例に係る
動翼の隙間調整機構を備えた圧縮機の要部断面、図３に
は図２中のIII-III 線矢視を示してある。尚、以下に示
す実施形態例では、軸流回転機械として圧縮機を例に挙
げて説明してあるが、タービンやブロア等の他の軸流回
転機械を適用することも可能である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the overall structure of a compressor to which the present invention is applied, and FIG. 2 shows the essential parts of a compressor having a moving blade clearance adjusting mechanism according to a first embodiment of the present invention. A partial cross section, FIG. 3 shows a view taken along the line III-III in FIG. In the embodiments described below, a compressor is taken as an example of the axial flow rotary machine, but other axial flow rotary machines such as turbines and blowers can also be applied.
【００１３】図１に示すように、圧縮機５１の車室３に
はロータ１が回転自在に支持され、ロータ１の周方向に
は動翼２が配列され、動翼２はロータ１の軸方向に複数
段備えられている。車室３には動翼２の間に配される静
翼５が保持されている。吸気室５３から吸気された空気
は動翼２と静翼５の間を通過して圧縮され、同軸に設け
られたタービン５４で膨張される。動翼２の先端と車室
５２の内壁とがロータ１の軸方向に傾斜する傾斜面で対
向している。As shown in FIG. 1, a rotor 1 is rotatably supported in a casing 3 of a compressor 51, rotor blades 2 are arranged in the circumferential direction of the rotor 1, and the rotor blades 2 are the shafts of the rotor 1. It is equipped with multiple stages in the direction. A vane 5 arranged between the moving blades 2 is held in the vehicle compartment 3. The air taken in from the intake chamber 53 passes between the moving blades 2 and the stationary blades 5, is compressed, and is expanded by the turbine 54 provided coaxially. The tips of the moving blades 2 and the inner wall of the vehicle compartment 52 face each other with an inclined surface inclined in the axial direction of the rotor 1.
【００１４】即ち、図２に示すように、圧縮機にはロー
タ１が回転自在に支持され、ロータ１の周方向には動翼
２が配列されて固定されている。動翼２はロータ１の軸
方向に複数段設けられ、動翼２の先端は後段側（図中右
側）に向かって下方に傾斜した状態に形成されている。
一方、圧縮機の車室３には静翼環４が固定され、静翼環
４には静翼５が固定されて動翼２と静翼５がロータ１の
軸方向に交互に配された状態になっている。That is, as shown in FIG. 2, the rotor 1 is rotatably supported by the compressor, and the rotor blades 2 are arranged and fixed in the circumferential direction of the rotor 1. The rotor blades 2 are provided in a plurality of stages in the axial direction of the rotor 1, and the tips of the rotor blades 2 are formed to be inclined downward toward the rear stage side (right side in the figure).
On the other hand, the stationary vane ring 4 is fixed to the casing 3 of the compressor, the stationary vane 5 is fixed to the stationary vane ring 4, and the moving vanes 2 and the stationary vanes 5 are alternately arranged in the axial direction of the rotor 1. It is in a state.
【００１５】動翼２の先端に対向する車室３の内壁には
隙間調整部材としての動翼環６がロータ１の軸方向（図
中左右方向）に移動自在に支持されている。即ち、図２
に示すように、車室３の内周にはロータ１の軸方向に延
びる溝７が周方向に複数設けられ、動翼環６には溝７に
摺動自在に嵌合するレール８が設けられている。動翼環
６は、例えば、周方向に二分割され、上半分及び下半分
の動翼環６が溝７に案内されてロータ１の軸方向に移動
自在となっている。尚、動翼環６は三分割や四分割、ま
たは、六分割等適宜数に分割することが可能であり、ま
た、分割せずに一つのリング状とすることも可能であ
る。A moving blade ring 6 as a clearance adjusting member is supported on the inner wall of the casing 3 facing the tip of the moving blade 2 so as to be movable in the axial direction of the rotor 1 (left-right direction in the drawing). That is, FIG.
As shown in FIG. 3, a plurality of grooves 7 extending in the axial direction of the rotor 1 are provided in the inner circumference of the vehicle interior 3, and rails 8 slidably fitted in the grooves 7 are provided in the rotor blade ring 6. Has been. The rotor blade ring 6 is, for example, divided into two in the circumferential direction, and the rotor blade rings 6 in the upper and lower halves are guided by the grooves 7 and are movable in the axial direction of the rotor 1. The rotor blade ring 6 can be divided into an appropriate number such as three divisions, four divisions, or six divisions, or can be formed into one ring shape without division.
【００１６】図２に示すように、動翼環６の動翼２との
対向面は動翼２の先端の傾斜に平行に対向した傾斜面９
（角度θで傾斜）となっている。つまり、動翼２の先端
と車室３の内壁側としての動翼環６は、ロータ１の軸方
向に傾斜する傾斜面９で隙間Ｓで対向するように漸次小
径に形成されている。動翼環６と静翼環４とにわたり駆
動手段としての、例えば、油圧のアクチュエータ１０が
設けられ、アクチュエータ１０の駆動により動翼環６が
静翼環４に対して（固定側に対して）軸方向の任意の位
置に位置決め移動されて保持される。As shown in FIG. 2, the surface of the rotor blade ring 6 facing the rotor blade 2 is an inclined surface 9 which is parallel to the inclination of the tip of the rotor blade 2.
(Tilted at an angle θ). That is, the tip of the moving blade 2 and the moving blade ring 6 on the inner wall side of the vehicle interior 3 are formed to have a gradually smaller diameter so as to face each other with the gap S on the inclined surface 9 inclined in the axial direction of the rotor 1. A hydraulic actuator 10, for example, is provided as a drive means across the moving blade ring 6 and the stationary blade ring 4, and the moving blade ring 6 is driven by the actuator 10 with respect to the stationary blade ring 4 (to the fixed side). It is positioned and moved and held at an arbitrary position in the axial direction.
【００１７】アクチュエータ１０の駆動により動翼環６
を図中ΔＸ方向に移動させた場合、動翼環６の傾斜面９
と動翼２の先端との隙間Ｓは、ΔＸ・ｔａｎθだけ狭く
なり、図中−ΔＸ方向に移動させた場合、ΔＸ・ｔａｎ
θだけ広くなる。The rotor ring 6 is driven by the actuator 10.
Is moved in the ΔX direction in the figure, the inclined surface 9 of the rotor blade ring 6
The clearance S between the blade and the tip of the rotor blade 2 is narrowed by ΔX · tan θ, and when moved in the −ΔX direction in the figure, ΔX · tan
It becomes wider by θ.
【００１８】このため、圧縮機５１の起動時から定常運
転に至るまでに固定側の車室３と回転側の動翼２とが熱
膨張の状況が異なっているが、アクチュエータ８の駆動
により隙間Ｓを所定状態に保持することで、全ての運転
領域で流体の漏れを最小限に抑え、且つ、接触の虞をな
くすように隙間Ｓを設定することが可能となる。しか
も、少ない部品点数の簡単な構成で隙間Ｓを分割した動
翼環６単位で一斉に調整することができ、コストをかけ
ずに圧縮機５１の性能を向上させることが可能になる。Therefore, the thermal expansion of the fixed-side casing 3 and the rotating-side moving blades 2 is different from the start of the compressor 51 to the steady operation. By holding S in a predetermined state, it is possible to set the gap S so as to minimize fluid leakage in all operating regions and eliminate the risk of contact. In addition, the gap S can be adjusted in units of the moving blade rings 6 in a simple configuration with a small number of parts, and the performance of the compressor 51 can be improved without increasing the cost.
【００１９】図４に基づいて本発明の第２実施形態例を
説明する。図４には本発明の第２実施形態例に係る動翼
の隙間調整機構を備えた圧縮機の要部断面を示してあ
る。尚、図１乃至図３に示した部材と同一部材には同一
符号を付して重複する説明は省略してある。A second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view of the main parts of a compressor including a moving blade clearance adjusting mechanism according to a second embodiment of the present invention. The same members as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and duplicate explanations are omitted.
【００２０】図に示すように、圧縮機５１は、複数段
（図示例では二段）の動翼２にわたり一つの動翼環１１
が設けられ、動翼環１１のそれぞれの動翼２との対向面
は動翼２の先端の傾斜に平行に対向した傾斜面１２，１
３が形成されている。傾斜面１２，１３の間の動翼環１
１には静翼５が動翼環１１に対してロータ１の軸方向に
相対的に移動自在に貫通して配され、静翼５は基部が車
室３に固定されている。動翼環１１は図示しない隣接す
る静翼環との間に設けられたアクチュエータ８の駆動に
より固定側に対して軸方向の任意の位置に位置決め移動
されて保持される。As shown in the drawing, the compressor 51 includes a single rotor blade ring 11 over a plurality of stages (two stages in the illustrated example) of rotor blades 2.
Is provided, and the surfaces of the rotor blade ring 11 facing the respective rotor blades 2 are inclined surfaces 12 and 1 facing in parallel to the inclination of the tip of the rotor blade 2.
3 is formed. Rotor blade ring 1 between the inclined surfaces 12 and 13
1, a stator vane 5 is disposed so as to be relatively movable in the axial direction of the rotor 1 with respect to the rotor blade ring 11, and the base of the stator vane 5 is fixed to the vehicle compartment 3. The moving blade ring 11 is positioned and moved to an arbitrary position in the axial direction with respect to the fixed side and is held by driving an actuator 8 provided between the moving blade ring 11 and an adjacent stationary blade ring (not shown).
【００２１】このため、一つのアクチュエータ１０の駆
動により、二段の動翼２の先端との隙間Ｓを調整するこ
とができ、更に少ない部品点数で隙間Ｓを所定状態に保
持することが可能になる。従って、更にコストをかけず
に圧縮機５１の性能を向上させることが可能になる。Therefore, by driving one actuator 10, the gap S between the tips of the two-stage moving blades 2 can be adjusted, and the gap S can be maintained in a predetermined state with a smaller number of parts. Become. Therefore, the performance of the compressor 51 can be improved without further increasing the cost.
【００２２】図５に基づいて本発明の第３実施形態例を
説明する。図５には本発明の第３実施形態例に係る動翼
の隙間調整機構を備えた圧縮機の要部断面を示してあ
る。尚、図１乃至図３に示した部材と同一部材には同一
符号を付して重複する説明は省略してある。A third embodiment of the present invention will be described with reference to FIG. FIG. 5 shows a cross section of a main part of a compressor including a moving blade clearance adjusting mechanism according to a third embodiment of the present invention. The same members as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and duplicate explanations are omitted.
【００２３】図に示すように、動翼２の先端と動翼環６
の傾斜面９との隙間Ｓのギャップ（状況）を検出する
（導出する）状況導出手段としてのギャップセンサ１５
が動翼環６に設けられている。ギャップセンサ１５の検
出信号は制御手段１６に入力され、動翼２の先端と動翼
環６の傾斜面９との隙間Ｓが所定の隙間となるように制
御手段１６からアクチュエータ８に駆動信号が出力され
る。As shown in the figure, the tip of the rotor blade 2 and the rotor blade ring 6 are
The gap sensor 15 as a situation deriving means for detecting (deriving) the gap (situation) of the gap S with the inclined surface 9 of the.
Are provided on the rotor ring 6. The detection signal of the gap sensor 15 is input to the control means 16, and a drive signal is sent from the control means 16 to the actuator 8 so that the clearance S between the tip of the moving blade 2 and the inclined surface 9 of the moving blade ring 6 becomes a predetermined clearance. Is output.
【００２４】このため、ギャップセンサ１５により隙間
を直接検出し、制御手段１６の信号によりアクチュエー
タ８を駆動させて、自動的に動翼２の先端と傾斜面９と
の隙間Ｓを最適に調整することができ、隙間Ｓを確実に
所定状態に保持することが可能になる。従って、隙間Ｓ
を確実に所定状態に保持して圧縮機５１の性能を向上さ
せることが可能になる。Therefore, the gap sensor 15 directly detects the gap, and the actuator 8 is driven by the signal of the control means 16 to automatically adjust the gap S between the tip of the moving blade 2 and the inclined surface 9 to the optimum. Therefore, the gap S can be reliably maintained in a predetermined state. Therefore, the gap S
Is reliably maintained in a predetermined state, and the performance of the compressor 51 can be improved.
【００２５】尚、動翼２の先端と動翼環６の傾斜面９と
の隙間Ｓの状況を導出する状況導出手段として温度セン
サを用いることも可能である。この場合、温度が高い場
合に隙間Ｓを広げるようにし、温度が低い場合に隙間Ｓ
を狭めるようにすることが考えられる。また、状況導出
手段としてタイマ等運転経過時間を検出する手段を用い
ることも可能である。この場合、運転時間が長くなるに
したがって隙間Ｓを広げるようにすることが考えられ
る。It is also possible to use a temperature sensor as a situation deriving means for deriving the situation of the gap S between the tip of the moving blade 2 and the inclined surface 9 of the moving blade ring 6. In this case, when the temperature is high, the gap S is widened, and when the temperature is low, the gap S is large.
It is conceivable to narrow down. It is also possible to use a means such as a timer for detecting the elapsed operation time as the situation deriving means. In this case, it is conceivable to widen the gap S as the operating time becomes longer.
【００２６】更に、圧縮機の機種毎に隙間分布のデータ
を記憶したマップを制御手段１６に記憶させ、マップに
基づいてアクチュエータ１０をスケジュール的に制御す
ることも可能である。この時、外気温度や運転時間の違
いなどに基づいて隙間分布を個別に予測して先行して隙
間Ｓの調整を行うことも可能である。この場合、特別な
検出手段を用いることなく隙間Ｓを変化の状況に応じて
最適に制御することが可能になる。Further, it is possible to store a map in which data of the gap distribution is stored for each model of the compressor in the control means 16 and to control the actuator 10 on a schedule basis based on the map. At this time, it is also possible to predict the gap distribution individually based on the difference in the outside air temperature or the operating time, and adjust the gap S in advance. In this case, the gap S can be optimally controlled according to the changing situation without using a special detecting means.
【００２７】また、動翼環６を複数分割した場合、周方
向で上下の隙間と左右の隙間の状況を任意に変化させて
隙間Ｓを調整することも可能である。例えば、上下の隙
間を広めにして左右の隙間を狭くしたり、またその逆の
状態にする等の調整が可能である。更に、ロータ１の軸
方向で隙間Ｓの状況を任意に設定して調整することも可
能である。また、場合によっては、動翼環６を軸方向に
固定にしてロータ１を軸方向に移動させることで動翼２
を移動させて隙間Ｓを調整することも可能である。When the rotor blade ring 6 is divided into a plurality of parts, it is possible to adjust the gap S by arbitrarily changing the conditions of the upper and lower gaps and the left and right gaps in the circumferential direction. For example, it is possible to make an adjustment such that the upper and lower gaps are widened and the left and right gaps are narrowed, and vice versa. Furthermore, it is also possible to arbitrarily set and adjust the situation of the gap S in the axial direction of the rotor 1. In some cases, the rotor blade 1 is moved in the axial direction while the rotor blade ring 6 is fixed in the axial direction.
It is also possible to adjust the gap S by moving.
【００２８】[0028]
【発明の効果】本発明の動翼の隙間調整機構は、ロータ
の周方向に動翼が配列され、動翼の先端と車室の内壁側
とがロータの軸方向に傾斜する傾斜面で対向する軸流回
転機械に適用されるものであって、車室内壁に対してロ
ータの軸方向に相対的に動翼を移動自在に構成し、動翼
の先端と車室内壁との隙間を調整自在としたので、車室
内壁に対して動翼を相対的に移動させることで、動翼の
先端と車室内壁との隙間が調整される。この結果、少な
い部品点数の簡単な構造で動翼先端と車室内壁との隙間
を最適に調整することが可能になる。According to the moving blade clearance adjusting mechanism of the present invention, the moving blades are arranged in the circumferential direction of the rotor, and the tips of the moving blades and the inner wall side of the vehicle compartment face each other with an inclined surface inclined in the axial direction of the rotor. It is applied to an axial flow rotary machine that adjusts the gap between the tip of the moving blade and the inner wall of the vehicle interior by allowing the moving blade to move in the axial direction of the rotor relative to the inner wall of the vehicle interior. Since the moving blade is freely moved with respect to the vehicle interior wall, the gap between the tip of the moving blade and the vehicle interior wall is adjusted. As a result, it is possible to optimally adjust the gap between the blade tip and the vehicle interior wall with a simple structure having a small number of parts.
【００２９】また、本発明の動翼の隙間調整機構は、ロ
ータの周方向に動翼が配列され、動翼の先端と車室の内
壁側とがロータの軸方向に傾斜する傾斜面で対向する軸
流回転機械に適用されるものであって、動翼の対向部位
における車室内壁にロータの軸方向に移動自在に隙間調
整部材と設け、隙間調整部材の内周面を動翼先端の傾斜
に対応して漸次小径に形成し、隙間調整部材を任意の位
置に移動位置決めして動翼先端と内周面との隙間を所定
隙間に保持する駆動手段を備えたので、駆動手段により
隙間調整部材を任意の位置に移動位置決めすることで、
動翼の先端と隙間調整部材の内周面との隙間が調整され
る。この結果、少ない部品点数の簡単な構造で動翼先端
と車室内壁との隙間を最適に調整することが可能にな
る。Further, in the moving blade clearance adjusting mechanism of the present invention, the moving blades are arranged in the circumferential direction of the rotor, and the tips of the moving blades and the inner wall side of the vehicle compartment face each other with an inclined surface inclined in the axial direction of the rotor. And a gap adjusting member movably in the axial direction of the rotor on the inner wall of the vehicle at the facing portion of the moving blade, and the inner peripheral surface of the gap adjusting member is The drive means is formed to have a gradually smaller diameter corresponding to the inclination, and the clearance adjusting member is moved and positioned at an arbitrary position to maintain the clearance between the tip of the moving blade and the inner peripheral surface at a predetermined clearance. By moving and positioning the adjustment member to any position,
The gap between the tip of the moving blade and the inner peripheral surface of the gap adjusting member is adjusted. As a result, it is possible to optimally adjust the gap between the blade tip and the vehicle interior wall with a simple structure having a small number of parts.
【００３０】そして、隙間調整部材の内周面は複数段の
動翼先端にわたって配されているので、更に部品点数を
少なくすることが可能になる。Further, since the inner peripheral surface of the gap adjusting member is arranged over a plurality of stages of blade tips, it is possible to further reduce the number of parts.
【００３１】また、動翼先端と隙間調整部材の内周面と
の隙間の状況を導出する状況導出手段を備え、状況導出
手段の導出状況により駆動手段の駆動を制御して動翼先
端と内周面との隙間を所定隙間に保持させる制御手段を
備えたので、自動的に動翼の先端と隙間調整部材の内周
面との隙間を最適に調整することができ、隙間を確実に
所定状態に保持することが可能になる。Further, a condition deriving means for deriving the condition of the gap between the moving blade tip and the inner peripheral surface of the clearance adjusting member is provided, and the driving of the driving means is controlled by the deriving condition of the condition deriving means to control the inner and outer surfaces of the moving blade. Since the control means for maintaining the clearance with the peripheral surface at a predetermined clearance is provided, the clearance between the tip of the moving blade and the inner peripheral surface of the clearance adjusting member can be automatically adjusted to the optimum value, and the clearance can be reliably determined. It becomes possible to hold the state.
【００３２】また、状況導出手段は動翼先端と隙間調整
部材の内周面との隙間を検出するギャップセンサである
と共に、駆動手段は流体圧アクチュエータであり、制御
手段には、ギャップセンサで検出される隙間値が所定の
値になるように流体圧アクチュエータを駆動させる機能
が備えられているので、隙間を直接検出して自動的に動
翼の先端と隙間調整部材の内周面との隙間を最適に調整
することができ、隙間を確実に所定状態に保持すること
が可能になる。The condition deriving means is a gap sensor for detecting the gap between the blade tip and the inner peripheral surface of the gap adjusting member, the driving means is a fluid pressure actuator, and the control means is a gap sensor. Since it has a function to drive the fluid pressure actuator so that the gap value to be set becomes a predetermined value, the gap between the tip of the blade and the inner peripheral surface of the gap adjusting member is automatically detected by directly detecting the gap. Can be optimally adjusted, and the gap can be reliably maintained in a predetermined state.
【００３３】本発明の軸流回転機械は、車室側に回転自
在に支持されるロータと、ロータの軸方向に多段に配列
され請求項１乃至請求項４のいずれか一項に記載の隙間
調整機構が備えられ先端と車室の内壁とがロータの軸方
向に傾斜する傾斜面で対向する動翼と、動翼の間に配さ
れ車室側に保持される静翼とからなるので、車室内壁に
対して動翼を相対的に移動させることで、動翼の先端と
車室内壁との隙間が調整され、少ない部品点数の簡単な
構造で動翼先端と車室内壁との隙間を最適に調整するこ
とができる軸流回転機械とすることができる。この結
果、軸流回転機械の性能を向上させることが可能にな
る。According to another aspect of the present invention, there is provided an axial flow rotating machine, wherein a rotor is rotatably supported on a passenger compartment side, and the rotor is arranged in multiple stages in an axial direction of the rotor. Since the adjustment mechanism is provided and the tip and the inner wall of the vehicle compartment are opposed to each other by an inclined surface inclined in the axial direction of the rotor, and the stationary blades are arranged between the blades and retained on the vehicle compartment side, By moving the rotor blade relative to the vehicle interior wall, the gap between the rotor blade tip and the vehicle interior wall is adjusted, and the gap between the rotor blade tip and the vehicle interior wall is simplified with a simple structure with a small number of parts. Can be optimally adjusted. As a result, it becomes possible to improve the performance of the axial flow rotary machine.
【００３４】本発明の圧縮機は、車室側に回転自在に支
持されるロータと、ロータの軸方向に多段に配列され請
求項１乃至請求項４のいずれか一項に記載の隙間調整機
構が備えられ先端と車室の内壁とがロータの軸方向に傾
斜する傾斜面で対向する動翼と、動翼の間に配され車室
側に保持される静翼とからなるので、車室内壁に対して
動翼を相対的に移動させることで、動翼の先端と車室内
壁との隙間が調整され、少ない部品点数の簡単な構造で
動翼先端と車室内壁との隙間を最適に調整することがで
きる軸流回転機械とすることができる。この結果、圧縮
機の性能を向上させることが可能になる。The compressor according to the present invention includes a rotor rotatably supported on the passenger compartment side, and a gap adjusting mechanism according to any one of claims 1 to 4, wherein the rotor is arranged in multiple stages in the axial direction of the rotor. Since the front end and the inner wall of the vehicle interior are provided with moving blades that face each other on the inclined surface that is inclined in the axial direction of the rotor, and stationary blades that are arranged between the moving blades and are retained on the vehicle interior side, By moving the rotor blade relative to the wall, the gap between the rotor blade tip and the vehicle interior wall is adjusted, and the gap between the rotor blade tip and the vehicle interior wall is optimized with a simple structure with a small number of parts. It can be an axial flow rotary machine that can be adjusted to. As a result, the performance of the compressor can be improved.
【図１】本発明を適用する圧縮機の全体構成図。FIG. 1 is an overall configuration diagram of a compressor to which the present invention is applied.
【図２】本発明の第１実施形態例に係る動翼の隙間調整
機構を備えた圧縮機の要部断面図。FIG. 2 is a cross-sectional view of essential parts of a compressor including a moving blade clearance adjusting mechanism according to a first embodiment of the present invention.
【図３】図２中のIII-III 線矢視図。FIG. 3 is a view taken along the line III-III in FIG.
【図４】本発明の第２実施形態例に係る動翼の隙間調整
機構を備えた圧縮機の要部断面図。FIG. 4 is a cross-sectional view of essential parts of a compressor including a moving blade clearance adjusting mechanism according to a second embodiment of the present invention.
【図５】本発明の第３実施形態例に係る動翼の隙間調整
機構を備えた圧縮機の要部断面図。FIG. 5 is a cross-sectional view of essential parts of a compressor including a moving blade clearance adjusting mechanism according to a third embodiment of the present invention.
１ ロータ ２ 動翼 ３ 車室 ４ 静翼環 ５ 静翼 ６，１１ 動翼環 ７ 溝 ８ レール ９，１２，１３ 傾斜面 １０ アクチュエータ １５ ギャップセンサ １６ 制御手段 ５１ 圧縮機 ５２ 車室 1 rotor 2 moving blades 3 car compartment 4 stationary blade ring 5 stationary wings 6,11 rotor ring 7 groove 8 rails 9, 12, 13 inclined surface 10 actuators 15 Gap sensor 16 Control means 51 compressor 52 cabin
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3H033 AA02 AA16 BB01 BB08 BB17 CC01 CC04 DD28 EE09 3H034 AA02 AA16 BB03 BB08 BB17 BB19 CC01 CC04 DD26 EE09 ─────────────────────────────────────────────────── ─── Continued front page F-term (reference) 3H033 AA02 AA16 BB01 BB08 BB17 CC01 CC04 DD28 EE09 3H034 AA02 AA16 BB03 BB08 BB17 BB19 CC01 CC04 DD26 EE09
Claims (7)
の先端と車室の内壁側とがロータの軸方向に傾斜する傾
斜面で対向する軸流回転機械に適用されるものであっ
て、車室内壁に対してロータの軸方向に相対的に動翼を
移動自在に構成し、動翼の先端と車室内壁との隙間を調
整自在としたことを特徴とする動翼の隙間調整機構。1. An axial flow rotary machine in which rotor blades are arranged in a circumferential direction of a rotor, and the tips of the rotor blades and an inner wall side of a vehicle compartment face each other with an inclined surface inclined in an axial direction of the rotor. The moving blade is configured to be movable in the axial direction of the rotor relative to the vehicle interior wall, and the gap between the tip of the moving blade and the vehicle interior wall is adjustable. Gap adjustment mechanism.
の先端と車室の内壁側とがロータの軸方向に傾斜する傾
斜面で対向する軸流回転機械に適用されるものであっ
て、動翼の対向部位における車室内壁にロータの軸方向
に移動自在に隙間調整部材と設け、隙間調整部材の内周
面を動翼先端の傾斜に対応して漸次小径に形成し、隙間
調整部材を任意の位置に移動位置決めして動翼先端と内
周面との隙間を所定隙間に保持する駆動手段を備えたこ
とを特徴とする動翼の隙間調整機構。2. The present invention is applied to an axial flow rotary machine in which moving blades are arranged in a circumferential direction of a rotor, and tips of the moving blades and an inner wall side of a vehicle compartment face each other with an inclined surface inclined in the axial direction of the rotor. Therefore, a gap adjusting member is provided on the inner wall of the vehicle at a portion facing the moving blade so as to be movable in the axial direction of the rotor, and the inner peripheral surface of the gap adjusting member is formed to have a gradually smaller diameter corresponding to the inclination of the tip of the moving blade. A moving blade clearance adjusting mechanism comprising a drive means for moving and positioning the clearance adjusting member to an arbitrary position to maintain a clearance between the moving blade tip and the inner peripheral surface at a predetermined clearance.
面は複数段の動翼先端にわたって配されていることを特
徴とする動翼の隙間調整機構。3. The blade clearance adjusting mechanism according to claim 2, wherein the inner peripheral surface of the clearance adjusting member is arranged over a plurality of stages of blade tips.
翼先端と隙間調整部材の内周面との隙間の状況を導出す
る状況導出手段を備え、状況導出手段の導出状況により
駆動手段の駆動を制御して動翼先端と内周面との隙間を
所定隙間に保持させる制御手段を備えたことを特徴とす
る動翼の隙間調整機構。4. The condition deriving means for deriving the condition of the gap between the tip of the moving blade and the inner peripheral surface of the gap adjusting member according to claim 2 or 3, wherein the driving device is driven according to the deriving condition of the condition deriving device. A moving blade clearance adjusting mechanism, which is provided with control means for controlling the clearance to maintain the clearance between the blade tip and the inner peripheral surface at a predetermined clearance.
先端と隙間調整部材の内周面との隙間を検出するギャッ
プセンサであると共に、駆動手段は流体圧アクチュエー
タであり、制御手段には、ギャップセンサで検出される
隙間値が所定の値になるように流体圧アクチュエータを
駆動させる機能が備えられていることを特徴とする動翼
の隙間調整機構。5. The condition deriving means is a gap sensor for detecting a gap between a tip of a moving blade and an inner peripheral surface of a gap adjusting member, and the driving means is a fluid pressure actuator, and the control means is A moving blade clearance adjusting mechanism having a function of driving a fluid pressure actuator so that a clearance value detected by a gap sensor becomes a predetermined value.
と、ロータの軸方向に多段に配列され請求項１乃至請求
項５のいずれか一項に記載の隙間調整機構が備えられ先
端と車室の内壁とがロータの軸方向に傾斜する傾斜面で
対向する動翼と、動翼の間に配され車室側に保持される
静翼とからなることを特徴とする軸流回転機械。6. A rotor rotatably supported on the passenger compartment side, and a tip provided with the gap adjusting mechanism according to claim 1, which is arranged in multiple stages in the axial direction of the rotor. An axial-flow rotary machine, characterized in that the inner wall of the vehicle interior comprises moving blades that face each other with an inclined surface that is inclined in the axial direction of the rotor, and stationary blades that are arranged between the moving blades and are held on the vehicle interior side. .
と、ロータの軸方向に多段に配列され請求項１乃至請求
項５のいずれか一項に記載の隙間調整機構が備えられ先
端と車室の内壁とがロータの軸方向に傾斜する傾斜面で
対向する動翼と、動翼の間に配され車室側に保持される
静翼とからなることを特徴とする圧縮機。7. A rotor rotatably supported on the passenger compartment side, and a tip provided with the gap adjusting mechanism according to claim 1, which is arranged in multiple stages in the axial direction of the rotor. A compressor characterized in that the inner wall of the vehicle compartment comprises moving blades opposed to each other by an inclined surface inclined in the axial direction of the rotor, and stationary blades arranged between the moving blades and held on the vehicle compartment side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001333837A JP2003139093A (en) | 2001-10-31 | 2001-10-31 | Clearance adjusting mechanism of moving blade and axial rotary machine and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001333837A JP2003139093A (en) | 2001-10-31 | 2001-10-31 | Clearance adjusting mechanism of moving blade and axial rotary machine and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003139093A true JP2003139093A (en) | 2003-05-14 |
Family
ID=19149050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001333837A Withdrawn JP2003139093A (en) | 2001-10-31 | 2001-10-31 | Clearance adjusting mechanism of moving blade and axial rotary machine and compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003139093A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009264379A (en) * | 2008-04-28 | 2009-11-12 | General Electric Co <Ge> | Method and system for disassembling machine |
| JP2014202194A (en) * | 2013-04-10 | 2014-10-27 | 株式会社日立製作所 | Axial flow compressor, gas turbine facility and operational method for axial flow compressor |
| CN109779701A (en) * | 2019-03-14 | 2019-05-21 | 中国船舶重工集团公司第七0四研究所 | Axis stream air turbine experimental rig |
| CN113605995A (en) * | 2021-04-30 | 2021-11-05 | 上海慕帆动力科技有限公司 | TRT clearance adjusting method |
-
2001
- 2001-10-31 JP JP2001333837A patent/JP2003139093A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009264379A (en) * | 2008-04-28 | 2009-11-12 | General Electric Co <Ge> | Method and system for disassembling machine |
| US8677591B2 (en) | 2008-04-28 | 2014-03-25 | General Electric Company | Methods and system for disassembling a machine |
| US9559571B2 (en) | 2008-04-28 | 2017-01-31 | General Electric Company | Methods and system for disassembling a machine |
| JP2014202194A (en) * | 2013-04-10 | 2014-10-27 | 株式会社日立製作所 | Axial flow compressor, gas turbine facility and operational method for axial flow compressor |
| CN109779701A (en) * | 2019-03-14 | 2019-05-21 | 中国船舶重工集团公司第七0四研究所 | Axis stream air turbine experimental rig |
| CN109779701B (en) * | 2019-03-14 | 2023-12-05 | 中国船舶重工集团公司第七0四研究所 | Axial flow air turbine test device |
| CN113605995A (en) * | 2021-04-30 | 2021-11-05 | 上海慕帆动力科技有限公司 | TRT clearance adjusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20050104 |