WO2020209433A1 - Air foil bearing for air blower that can be assembed and disassembled - Google Patents

Air foil bearing for air blower that can be assembed and disassembled Download PDF

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Publication number
WO2020209433A1
WO2020209433A1 PCT/KR2019/004784 KR2019004784W WO2020209433A1 WO 2020209433 A1 WO2020209433 A1 WO 2020209433A1 KR 2019004784 W KR2019004784 W KR 2019004784W WO 2020209433 A1 WO2020209433 A1 WO 2020209433A1
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WO
WIPO (PCT)
Prior art keywords
bump
coupling
predetermined
airfoil
tower
Prior art date
Application number
PCT/KR2019/004784
Other languages
French (fr)
Korean (ko)
Inventor
선정훈
선창훈
장수혁
김민수
Original Assignee
(주)건우테크
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020190042703A external-priority patent/KR102181517B1/en
Application filed by (주)건우테크 filed Critical (주)건우테크
Priority to CN201980006002.2A priority Critical patent/CN112513478B/en
Publication of WO2020209433A1 publication Critical patent/WO2020209433A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/024—Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/042—Sliding-contact bearings for exclusively rotary movement for axial load only with flexible leaves to create hydrodynamic wedge, e.g. axial foil bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02—Sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/02—Assembling sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines
    • F16C2360/24—Turbochargers

Definitions

  • the present invention relates to a structure of an airfoil bearing, and more particularly, to a structure of an airfoil bearing that minimizes complicated processes such as welding and enables quick bearing assembly.
  • the present invention relates to a structure of an airfoil journal bearing, and more particularly, to a structure of an airfoil bearing that minimizes complicated processes such as welding and enables quick bearing assembly.
  • the present invention is to solve the problems of the prior art as described above, in an embodiment of the present invention, a plurality of thrust parts are overlapped to complete a single thrust part, and this is not a method of combining them through conventional welding. Through this, it is intended to provide a configuration of a removable airfoil thrust bearing having a configuration that can be easily removed and repaired if necessary.
  • the bump foil 10 and the tower are mounted in a predetermined order inside the bush 30, and a combination member 40 is used instead of a conventional welding method. It is intended to provide a configuration of a removable airfoil journal bearing with a configuration that is easy to remove and repair when necessary.
  • an airfoil bearing used in a turbo machine or an air cycle machine it is combined with a rotor shaft of a motor that provides rotational power, and is used for manufacturing the bump foil 10
  • the bent portion 110 formed by repeatedly bending the thin plate for a predetermined interval, the connecting portions 120 and 210 extending for a predetermined acute angle at one end, and the bent portion at the connecting portions 120 and 210
  • the tower 20 provided with the connection portions 120 and 210 and the coupling portions 130 and 220 corresponding to the (130, 220) and the bump foil 10 and the tower 20 are mounted on the inner circumferential surface, and at one end
  • the bottom fixing part for fixing the positions of the bump foil 10 and the tower 20, and the connecting parts 120, 210 and the coupling parts 130, 220 penetrate through and are negatively
  • a journal bearing unit comprising; a bush 30 provided with a fixed seating unit; A front cover 50 provided with a coupling part 110 formed to provide a predetermined seating space and selectively detachably from the thrust part 30, and selectively detachable from the front cover 50 And the main body rings 510 and 610 having a predetermined outer diameter, the tower support 520 protruding from the main body rings 510 and 610 in the central axis direction and formed at one or more places, and the tower support A tower connecting portion 530 formed to be tapered with respect to 520 by a predetermined angle, and extending from the tower connecting portion 530 by a predetermined length, and having a predetermined distance from the main ring 510 and 610
  • a tower 300 provided including a bump seating portion 540 formed in parallel while being maintained, provided in a size and shape corresponding to the tower, and bent with a main ring, a bump support portion 620, and a bump connection portion 630
  • a thrust bearing unit including a bump 600 including a portion 640 and
  • the bump foil 10 includes a bent portion 110 that is repeatedly formed at a predetermined height and curvature at predetermined intervals, and has a connection portion 120 that is bent at a predetermined angle to extend at one side thereof, 210), and is bent at a predetermined angle at the ends of the connecting portions 120 and 210, and has a size corresponding to the fixed seating portion, including coupling portions 130 and 220, and the bump foil 10 Is characterized in that it is inserted into the inside of the bush 30, and the coupling portions 130 and 220 are detachable by using the coupling member 40 to the fixed seating portion.
  • the top is coupled to the body portion 230 corresponding to the size and shape of the bent portion 110 of the bump foil 10 and the connection portions 120 and 210 at one side of the body portion 230
  • Each of the connecting portions 120 and 210 and the connecting portions 130 and 220 are provided in a size and shape corresponding to the portions 130 and 220, and the tower is inserted into the inner side of the bush 30 and the connecting portion 130 , 220) is characterized in that the detachable by using the coupling member 40 to the fixed seating portion.
  • the coupling portion 130 , 220 is mounted on the fixed seating portion and then detachable using the coupling member 40.
  • the coupling portions 130 and 220 pass through a guide hole 321 formed through one side of the bush 30, and are coupled with a seating coupling portion 322 formed outside the bush 30. It is fixedly coupled using a member 40, and the fixed coupling and detachment are possible according to a user's random selection.
  • the bump foil 10 is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
  • the tower is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
  • an assembly boss having a shape corresponding to the shape of the coupling portion 110 provided in the front cover 50 and an assembly hole are formed on the outer circumferential surfaces of the main ring 510 and 610, so that the It is characterized in that it is possible to assemble and disassemble the thrust bearing.
  • the bump is formed to extend from the bump connection by a predetermined angle with respect to the central axis
  • the outer diameter portion is formed by maintaining a distance between the inner diameter portion and the small diameter of the main ring, respectively, corresponding to the axis center It is characterized in that it is provided by dividing into two or more locations at an angle and position.
  • the bump seating portion 540 is formed to extend from the tower connection portion 530 by a predetermined angle with respect to the central axis, and the outer diameter portion maintains a separation distance between the inner diameter portion and the small diameter of the main ring (510, 610). It is formed by dividing into two or more at an angle and position corresponding to the axis center.
  • the two towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and the bump seating portion 540 provided in the first sheet is placed in the second combination space and then overlapped.
  • the three towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and are positioned after each of them, and then overlapped.
  • the two or more towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and are then positioned respectively and then overlapped.
  • the detachable airfoil journal bearing as described above is a combination of the completed bump foil 10 and the top using the seating coupling portion 322 formed on the bush 30 and the coupling member 40 After that, a detachable configuration is provided according to the operator's choice.
  • two thrust portions 30 are stacked to form one complete thrust portion 30, but three or four thrust portions 30 are overlapped.
  • an example of completing one thrust part 30 by overlapping the thrust part 30 composed of more than that number may also be possible.
  • the assembly and repair are easy through the provision of the configuration of the detachable airfoil journal bearing 1 having a configuration that is easily detachable and repairable when necessary using the coupling member 40
  • material costs and time required for repair and replacement can be drastically reduced.
  • FIG. 1 shows a product of an air blower.
  • FIGS. 2 and 3 are views showing an air blower equipped with a detachable airfoil bearing according to an embodiment of the present invention.
  • FIG. 4 is an exploded perspective view showing the configuration of an airfoil journal bearing according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view showing an airfoil journal bearing coupled state according to an embodiment of the present invention.
  • FIG. 6 is an exploded perspective view and a cross-sectional view illustrating a configuration of a detachable airfoil thrust bearing according to an embodiment of the present invention.
  • FIG. 7 is a view showing a detailed configuration of an airfoil thrust bearing according to an embodiment of the present invention.
  • FIG. 1 shows a product of an air blower.
  • 2 and 3 are views showing an air blower equipped with a detachable airfoil journal bearing 1 according to an embodiment of the present invention.
  • 4 is an exploded perspective view showing the configuration of an airfoil journal bearing according to an embodiment of the present invention.
  • 5 is a cross-sectional view showing an airfoil journal bearing coupled state according to an embodiment of the present invention.
  • the airfoil journal bearing 1 mounted on the air blower.
  • the airfoil journal bearing 1 is provided at both ends of the rotary shaft of the air blower in combination with the shaft.
  • FIG. 2 is a cross-sectional view showing the overall configuration of an air blower equipped with an airfoil journal bearing 1.
  • a volute for sucking external air and discharging it in a vertical direction is provided in the front, and a motor composed of a stator and a rotor is provided at one side of the volute.
  • a rotor shaft of a motor that provides rotational power with a volute and a pair of airfoil thrust bearings 2 are provided in combination.
  • a bent portion 110 formed by repeatedly bending a thin plate for manufacturing a bump foil 10 for a predetermined interval, and one end portion for a predetermined acute angle
  • a bump foil 10 having extended connection portions 120 and 210 and coupling portions 130 and 220 extending parallel to the bent portion 110 at the connection portions 120 and 210; It is formed with a width and length corresponding to the bump foil 10, and includes connection portions 120 and 210 and coupling portions 130 and 220 corresponding to the connection portions 120 and 210 and the coupling portions 130 and 220 A top 20;
  • the bump foil 10 and the top 20 are mounted on the inner circumferential surface, and at one end, a bottom fixing part for fixing the positions of the bump foil 10 and the tower 20 and the connection part ( 120, 210) and the coupling portion (130,
  • the bush 30 is provided in the form of a hollow tube in which an inner diameter portion of a predetermined size is formed, and the bump foil 10 and the tower 20 are mounted on the inner diameter portion.
  • the journal bearing configured in this way is coupled to the rotating shaft of a turbo rotating machine that rotates at high speed. At this time, a pair of the journal bearings are provided through shaft coupling at predetermined positions on both ends of the rotating shaft.
  • the journal bearing is configured by sequentially combining the top 20, the bump foil 10, and the bush 30 around the rotation shaft in this order.
  • the guide hole 321 is formed by penetrating from the inner diameter portion of the bush 30 to the outer circumferential surface, and the bump foil 10 to be described later and the connecting portions 120 and 210 and the coupling portions 130 and 220 formed on the saw It is provided in a penetrable size and shape.
  • the seating coupling portion 322 is formed in an intaglio on one side of the outer surface of the bush 30, and the connecting portions 120 and 210 and the coupling portions 130 and 220 are provided in a size and shape that can be seated.
  • the reason for being formed as an intaglio as described above is to prevent the connecting portions 120 and 210 and the coupling portions 130 and 220 from protruding outside the size of the outer diameter of the bush 30.
  • connection portions 120 and 210 and the coupling portions 130 and 220 are mounted on the seating and coupling portions 322, and the bushes 30 are mounted using bolts, rivets or various types of coupling members 40 currently applied. ) And fixedly.
  • the bump foil 10 includes a bent portion 110 that is repeatedly formed at a predetermined height and curvature at predetermined intervals, and has a connection portion 120 that is bent at a predetermined angle to extend at one side thereof, 210), and is bent at a predetermined angle at the ends of the connecting portions 120 and 210, and has a size corresponding to the fixed seating portion, including coupling portions 130 and 220, and the bump foil 10 Is characterized in that it is inserted into the inside of the bush 30, and the coupling portions 130 and 220 are detachable by using the coupling member 40 to the fixed seating portion.
  • the bump foil 10 includes bent portions 110 that are bent at predetermined intervals.
  • the bent portion 110 is bent in various shapes.
  • the bump foil 10 is provided with raw materials by cutting the material into a predetermined length and width.
  • the connecting portions 120 and 210 and the connecting portions 130 and 220 are formed, or the connecting portions 120 and 210 and the connecting portions 130 and 220 are provided with the bump foil 10. It is also possible to be coupled using a coupling member 40 and the like.
  • the bump foil 10 is molded to have a predetermined curvature, and likewise, the bump foil 10 is inserted and seated in the inner diameter of the bush 30 by overlapping with the curvature-molded tower 20.
  • the tower 20 the body portion 230 corresponding to the size and shape of the bent portion 110 of the bump foil 10, and the connection portion 120, 210 on one side of the body portion 230 ) And coupling portions 130 and 220 in a size and shape corresponding to the coupling portions 130 and 220, respectively, and the tower 20 is inserted into the bush 30
  • it is characterized in that it is possible to detach the coupling portions 130 and 220 by using the coupling member 40 to the fixed seating portion.
  • the coupling portions 130 and 220 pass through a guide hole 321 formed through one side of the bush 30, and are coupled with a seating coupling portion 322 formed outside the bush 30. It is fixedly coupled using a member 40, and the fixed coupling and detachment are possible according to a user's random selection.
  • the bump foil 10 is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
  • the tower 20 is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
  • a bottom fixing part that prevents the bump foil 10 and the tower 20 from being in position It characterized in that it is provided.
  • FIG. 6 is an exploded perspective view and a cross-sectional view illustrating a configuration of a detachable airfoil thrust bearing according to an embodiment of the present invention.
  • 7 is a view showing a detailed configuration of an airfoil thrust bearing according to an embodiment of the present invention.
  • the airfoil thrust bearing 2 mounted on the air blower.
  • the airfoil thrust bearing 2 is provided at one end of the rotating shaft of the air blower.
  • FIG. 2 is a cross-sectional view showing the overall configuration of an air blower equipped with an airfoil thrust bearing 2.
  • a volute for sucking external air and discharging it in a vertical direction is provided in the front, and a motor composed of a stator and a rotor is provided at one side of the volute.
  • An airfoil thrust bearing 2 is provided at an end of a rotor of a motor that provides rotational power with a volute.
  • the airfoil thrust bearing (2) provided in a turbo device or an air blower device, a combination formed to provide a space in which the thrust part (30) is seated, and the thrust part (30) is selectively detachable
  • a front cover 50 provided with a part 110; It is provided so as to be selectively detachable from the front cover 50 and is formed at one or more locations by protruding from the main body rings 510 and 610 having a predetermined outer diameter and the main body rings 510 and 610 in the central axis direction.
  • the top support 520 is formed, the tower connection 530 is formed to be tapered by a predetermined angle with respect to the tower support 520, and is formed to extend from the tower connection 530 by a predetermined length, and the main ring A tower 300 provided including a bump seating portion 540 formed to be parallel to the 510 and 610 while maintaining a predetermined distance;
  • a bump 600 having a size and shape corresponding to the tower, and including a body ring, a bump support part 620, a bump connection part 630 and a bent part 640;
  • a rear cover 60 that is coupled with the front cover 50 to shield the thrust bearing, and rotates the tower and the bump 600 by a predetermined angle with respect to the central axis, and then overlaps to a correct position. After that, it is characterized in that it can be selectively assembled and disassembled using the bump seating portion 540.
  • an assembly boss having a shape corresponding to the shape of the coupling portion 110 provided in the front cover 50 and an assembly hole are formed on the outer circumferential surfaces of the main ring 510 and 610, so that the It is characterized in that it is possible to assemble and disassemble the thrust bearing.
  • the bump 600 is formed to extend from the bump connection part by a predetermined angle with respect to the central axis, and the outer diameter part is formed by maintaining a distance between the inner diameter part and the small diameter of the main ring, and It is characterized in that it is provided by dividing into two or more at each corresponding angle and position.
  • the bump seating portion 540 is formed to extend from the tower connection portion 530 by a predetermined angle with respect to the central axis, and the outer diameter portion maintains a separation distance between the inner diameter portion and the small diameter of the main ring (510, 610). It is formed by dividing into two or more at an angle and position corresponding to the axis center.
  • the two towers and the bumps 600 are rotated by a predetermined angle with respect to the center of the axis, so that the bump seating portion 540 provided in the first sheet is positioned in the coupling space of the second sheet and then overlapped.
  • the three towers and bumps 600 are rotated by a predetermined angle with respect to the center of the axis, and are then positioned respectively and then overlapped.
  • two or more towers and bumps 600 are rotated by a predetermined angle with respect to the center of the axis, and are respectively positioned and then overlapped.
  • three towers are provided at each position with respect to the central axis, and a coupling space is provided between each tower and the tower. If the two main ring (510, 610) having the above configuration are overlapped with each other by 120° with respect to the central axis, a tower is located in the coupling space formed in each of the main ring (510, 610) and one thrust The wealth is completed.
  • four towers are provided at points 90° from the central axis of the main rings 510 and 610, and body rings 510 and 610 in which a coupling space is formed between each of the four towers are provided. do.
  • the two thrust portions 30 are rotated by a predetermined angle with respect to the center of the axis, and the bump seating portion 540 provided in the first sheet is positioned in the coupling space of the second sheet, and then the thrust is completed by overlapping.
  • the removable airfoil thrust bearing (2) is completed.
  • the thrust bearing having the above configuration provides a configuration that can be easily disassembled and replaced when a part of the thrust bearing is worn or damaged and needs repair or replacement.
  • the tower requiring replacement is not required to replace the entire thrust of the bump 600 It provides a configuration that can be replaced only the part 30.
  • the detachable airfoil thrust bearing 2 includes the completed thrust part 30 with the coupling part 110 and the bump seating part 540 of the front cover. After being coupled through the coupling member 40, it is characterized in that the detachment is possible according to the operator's choice.
  • two thrust portions 30 are stacked to form one complete thrust portion 30, but three or four thrust portions 30 are overlapped.
  • an example of completing one thrust part 30 by overlapping the thrust part 30 composed of more than that number may also be possible.
  • a tower connection part 530 formed to be tapered by a predetermined angle with respect to the tower support part 520 is formed in a gentle curved shape to have a predetermined curvature from the tower support part 520, and the It is also possible that the bump seating part 540 has a curvature opposite to that of the tower support part 520 and extends from the tower support part 520.
  • the bump seating portion 540 is formed to have a predetermined curvature, so that when the thrust bearing receives thrust and contacts one side of the rear cover 60, the contact surface is smooth.
  • the contact surface is small when contacted, and thus a configuration capable of further improving durability can be provided by structurally minimizing the case where the contact surface is worn or damaged due to abrasion due to friction or the like.
  • a plurality of thrust parts 30 are overlapped to complete a single thrust part 30, and this is not combined through conventional welding, but a coupling member 40 is used. It is intended to provide a configuration of a removable airfoil thrust bearing (2) having a configuration that can be easily removed and repaired if necessary.
  • Airfoil journal bearing 10. Bump foil

Abstract

In an embodiment of the present invention, an airfoil bearing used in a turbomachine or an air cycle machine, comprises: a journal bearing unit; and a thrust bearing unit. The journal bearing unit comprises: a bump foil (10) provided with a bent part (110) which is coupled to a rotating shaft of a motor that provides rotational power, and is formed by repeatedly bending a thin film for manufacturing a bump foil (10) for a predetermined interval, and connecting parts (120, 210) formed to extend with respect to a predetermined acute angle from one end thereof and coupling parts (130, 220) formed to extend in parallel to the bent part (110) from the connecting parts (120, 210); a top (20) formed to have a width and a length corresponding to the bump foil (10), and provided with connecting parts (120, 210) and coupling parts (130, 220) corresponding to the connecting parts (120, 210) and the coupling parts (130, 220); and a bush (30) in which the bump foil (10) and the top (20) are seated on the inner circumferential surface, and which has a bottom fixing part at one end thereof that fixes the positions of the bump foil (10) and the top (20), and a fixed seating part that is engraved on the outer circumferential surface such that the connecting parts (120, 210) and the coupling parts (130, 220) penetrate therethrough and are fixedly coupled to a predetermined position. The thrust bearing unit comprises: a top (300); a bump (600); and a rear cover (60). The top (300) comprises: a front cover (50) provided with a coupling portion (110) so as to provide a predetermined seating space and enable a thrust part (70) to be selectively attachable/detachable; body rings (510, 610) provided to be selectively removable from the front cover (50) and having a predetermined outer diameter; a top support (520) protruding from the body rings (510, 610) in the central axis direction and formed in one or more places; a top connecting part (530) formed to taper at a predetermined angle with respect to the top support part (520); and a bump seating part (540) formed to extend by a predetermined length from the top connecting part (530) and to be parallel to the body rings (510, 610) while maintaining a predetermined separation distance therefrom. The bump (600) is provided in a size and shape corresponding to that of the top, and comprises body rings, a bump support part (620), a bump connecting part (630), and a bent part (640). The rear cover (60) is coupled to the front cover (50) so as to shield the thrust bearing. The journal bearing part and the thrust bearing part each can be selectively assembled and disassembled.

Description

조립분해가능한 에어블로워용 에어포일 베어링Airfoil bearing for air blower that can be assembled and disassembled
본 발명은 에어포일 베어링의 구조에 관한 것으로서, 상세하게는 특히 용접과 같은 복잡한 공정을 최소화하고 신속하게 베어링조립이 가능한 에어포일 베어링의 구조에 관한 것이다.The present invention relates to a structure of an airfoil bearing, and more particularly, to a structure of an airfoil bearing that minimizes complicated processes such as welding and enables quick bearing assembly.
또한, 조립 및 탈착이 용이한 구조를 가짐으로써, 베어링을 교체해야 하는 경우에 수리에 따른 교체가 용이하고, 교체시에도 문제가 발생한 해당 구성만을 교체할 수 있는 조립형 구조 통해서 자원의 활용 및 작업 효율을 극대화시킬 수 있는 조립분해가능한 에어포일 베어링의 구조에 관한 것이다.In addition, as it has a structure that is easy to assemble and detach, it is easy to replace according to repair when bearings need to be replaced, and use and work of resources through an assembly-type structure that can only replace the component in which a problem has occurred. It relates to a structure of an airfoil bearing that can be assembled and disassembled to maximize efficiency.
본 발명은 에어포일 저널 베어링의 구조에 관한 것으로서, 상세하게는 특히 용접과 같은 복잡한 공정을 최소화하고 신속하게 베어링조립이 가능한 에어포일 베어링의 구조에 관한 것이다.The present invention relates to a structure of an airfoil journal bearing, and more particularly, to a structure of an airfoil bearing that minimizes complicated processes such as welding and enables quick bearing assembly.
본 고안은 상기와 같은 종래기술의 문제점을 해결하기 위한 것으로, 본 발명의 실시 예에서는, 복수의 쓰러스트부를 겹쳐서 한장의 쓰러스트부를 완성하고, 이를 기존의 용접을 통해서 결합하는 방식이 아닌 나사결합을 통해서 필요시 손쉽게 탈착 및 수리가 용이한 구성을 가진 탈착가능한 에어포일 쓰러스트 베어링의 구성을 제공하고자 한다.The present invention is to solve the problems of the prior art as described above, in an embodiment of the present invention, a plurality of thrust parts are overlapped to complete a single thrust part, and this is not a method of combining them through conventional welding. Through this, it is intended to provide a configuration of a removable airfoil thrust bearing having a configuration that can be easily removed and repaired if necessary.
또한, 본 발명의 실시 예에서는, 부쉬(30) 내부에 범프포일(10)과 탑을 소정의 순서대로 장착하고, 이를 기존의 용접을 통해서 결합하는 방식이 아닌 결합부재(40)를 이용하여 소정의 필요시 손쉽게 탈착 및 수리가 용이한 구성을 가진 탈착가능한 에어포일 저널 베어링의 구성을 제공하고자 한다.In addition, in the embodiment of the present invention, the bump foil 10 and the tower are mounted in a predetermined order inside the bush 30, and a combination member 40 is used instead of a conventional welding method. It is intended to provide a configuration of a removable airfoil journal bearing with a configuration that is easy to remove and repair when necessary.
상기와 같은 목적을 달성하기 위해서 본 발명의 실시 예에서는, 터보기기 또는 공기사이클 기기에 사용되는 에어포일 베어링에 있어서, 회전동력을 제공하는 모터의 회전자 축과 결합하고, 범프포일(10) 제조용 박판을 소정의 간격에 대해서 절곡시켜서 반복하여 형성되는 절곡부(110)와, 일단부에는 소정의 예각에 대해 연장형성되는 연결부(120, 210)와 상기 연결부(120, 210)에서 상기 절곡부(110)에 대해 평행하도록 연장형성된 결합부(130, 220)가 구비된 범프포일(10), 상기 범프포일(10)에 대응하는 폭과 길이로 형성되고, 상기 연결부(120, 210)와 결합부(130, 220)에 대응하는 연결부(120, 210)와 결합부(130, 220)가 구비되는 탑(20)과 상기 범프포일(10)과 탑(20)이 내주면에 안착되며, 일단부에는 상기 범프포일(10)과 탑(20)의 위치를 고정시키는 바텀고정부와 상기 연결부(120, 210)와 결합부(130, 220)가 관통하여 소정의 위치에 고정결합되도록 외주면에 음각형성되는 고정안착부가 구비되는 부쉬(30);를 포함하여 구성되는 저널 베어링부와; 소정의 안착 공간을 제공하고, 상기 쓰러스트부(30)가 선택적으로 탈착이 가능하도록 형성된 결합부(110)가 구비된 프론트 커버(50)와, 상기 프론트 커버(50)로부터 선택적으로 탈착이 가능하도록 구비되며, 소정의 외경을 가진 본체링(510, 610)과, 기 본체링(510, 610)으로부터 중심축 방향으로 돌출되어 1개소 이상에 형성되는 탑 지지부(520)와, 기 탑 지지부(520)에 대해서 소정의 각도만큼 테이퍼지도록 형성되는 탑 연결부(530)와, 상기 탑 연결부(530)로부터 소정의 길이만큼 연장되어 형성되고, 상기 본체링(510, 610)과는 소정의 이격거리를 유지한채 평행하도록 형성되는 범프 안착부(540)를 포함하여 구비되는 탑(300), 상기 탑에 대응하는 크기와 형상으로 구비되고, 본체링, 범프지지부(620), 범프연결부(630)와 절곡부(640)를 포함하여 구비되는 범프(bump)(600)와, 상기 프론트 커버(50)와 결합하여 상기 쓰러스트 베어링을 차폐하는 리어 커버(60)를 포함하여 구성되되는 쓰러스트 베어링부;를 포함하여 구성되고, 상기 저널 베어링부와 쓰러스트 베어링부는 각각 선택적으로 조립분해가 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링의 구성을 제공한다.In order to achieve the above object, in an embodiment of the present invention, in an airfoil bearing used in a turbo machine or an air cycle machine, it is combined with a rotor shaft of a motor that provides rotational power, and is used for manufacturing the bump foil 10 The bent portion 110 formed by repeatedly bending the thin plate for a predetermined interval, the connecting portions 120 and 210 extending for a predetermined acute angle at one end, and the bent portion at the connecting portions 120 and 210 A bump foil 10 provided with coupling portions 130 and 220 extending parallel to 110), formed in a width and length corresponding to the bump foil 10, and a coupling portion with the connection portions 120 and 210 The tower 20 provided with the connection portions 120 and 210 and the coupling portions 130 and 220 corresponding to the (130, 220) and the bump foil 10 and the tower 20 are mounted on the inner circumferential surface, and at one end The bottom fixing part for fixing the positions of the bump foil 10 and the tower 20, and the connecting parts 120, 210 and the coupling parts 130, 220 penetrate through and are negatively shaped on the outer circumferential surface so that they are fixedly coupled to a predetermined position. A journal bearing unit comprising; a bush 30 provided with a fixed seating unit; A front cover 50 provided with a coupling part 110 formed to provide a predetermined seating space and selectively detachably from the thrust part 30, and selectively detachable from the front cover 50 And the main body rings 510 and 610 having a predetermined outer diameter, the tower support 520 protruding from the main body rings 510 and 610 in the central axis direction and formed at one or more places, and the tower support A tower connecting portion 530 formed to be tapered with respect to 520 by a predetermined angle, and extending from the tower connecting portion 530 by a predetermined length, and having a predetermined distance from the main ring 510 and 610 A tower 300 provided including a bump seating portion 540 formed in parallel while being maintained, provided in a size and shape corresponding to the tower, and bent with a main ring, a bump support portion 620, and a bump connection portion 630 A thrust bearing unit including a bump 600 including a portion 640 and a rear cover 60 coupled to the front cover 50 to shield the thrust bearing; It is configured to include, and the journal bearing portion and the thrust bearing portion provides a configuration of an airfoil bearing for assembling and disassembling air blower, characterized in that each selectively assembled and disassembled.
이때, 상기 부쉬(30)에 형성되는 고정안착부에는, 상기 결합부(130, 220)가 관통가능도록 형성되는 안내공(321)과, 상기 결합부(130, 220)가 안착하여 고정결합가능하도록 상기 결합의 크기와 형상에 대응하도록 형성되는 안착결합부(322)를 포함하여 구성되고, 상기 결합부(130, 220)가 상기 안내공(321)을 관통하여 상기 안착결합부(322)에 위치하면 결합부재(40)로 고정결합 또는 탈착이 가능한 것을 특징으로 한다.At this time, in the fixed seating portion formed in the bush 30, a guide hole 321 formed so that the coupling portions 130 and 220 can pass through, and the coupling portions 130 and 220 are seated and fixedly coupled. It is configured to include a seating coupling portion 322 formed to correspond to the size and shape of the coupling, and the coupling portions 130 and 220 penetrate the guide hole 321 to the seating coupling portion 322 When positioned, it is characterized in that it can be fixedly coupled or detached with the coupling member 40.
그리고, 상기 범프포일(10)은, 소정의 간격마다 소정의 높이 및 곡률로 반복하여 형성되는 절곡부(110)를 포함하여 구비되고, 일측에는 소정의 각도로 절곡되어 연장형성되는 연결부(120, 210)와, 상기 연결부(120, 210)의 단부에서 소정의 각도로 절곡형성되고, 상기 고정안착부에 대응하는 크기를 결합부(130, 220)를 포함하여 구비되고, 상기 범프포일(10)은 상기 부쉬(30)의 내측에 삽입하여 상기 결합부(130, 220)를 고정안착부에 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 한다.Further, the bump foil 10 includes a bent portion 110 that is repeatedly formed at a predetermined height and curvature at predetermined intervals, and has a connection portion 120 that is bent at a predetermined angle to extend at one side thereof, 210), and is bent at a predetermined angle at the ends of the connecting portions 120 and 210, and has a size corresponding to the fixed seating portion, including coupling portions 130 and 220, and the bump foil 10 Is characterized in that it is inserted into the inside of the bush 30, and the coupling portions 130 and 220 are detachable by using the coupling member 40 to the fixed seating portion.
한편, 상기 탑은, 상기 범프포일(10)의 절곡부(110)의 크기와 형상에 대응하는 본체부(230)와, 상기 본체부(230)의 일측에는 상기 연결부(120, 210)와 결합부(130, 220)에 대응하는 크기와 형상으로 연결부(120, 210)와 결합부(130, 220)가 각각 구비되고, 상기 탑은 상기 부쉬(30)의 내측에 삽입하여 상기 결합부(130, 220)를 고정안착부에 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 한다.On the other hand, the top is coupled to the body portion 230 corresponding to the size and shape of the bent portion 110 of the bump foil 10 and the connection portions 120 and 210 at one side of the body portion 230 Each of the connecting portions 120 and 210 and the connecting portions 130 and 220 are provided in a size and shape corresponding to the portions 130 and 220, and the tower is inserted into the inner side of the bush 30 and the connecting portion 130 , 220) is characterized in that the detachable by using the coupling member 40 to the fixed seating portion.
이때, 상기 범프포일(10)을 상기 탑의 외면에 위치시킨 후, 상기 부쉬(30)의 내경의 크기에 대응하도록 절곡시킨 후 상기 부쉬(30)의 내주면에 삽입한 후, 상기 결합부(130, 220)를 상기 고정안착부에 안착시킨 후 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 한다.At this time, after placing the bump foil 10 on the outer surface of the tower, bending it to correspond to the size of the inner diameter of the bush 30 and inserting it into the inner circumferential surface of the bush 30, the coupling portion 130 , 220) is mounted on the fixed seating portion and then detachable using the coupling member 40.
한편, 상기 결합부(130, 220)는 상기 부쉬(30)의 일측에 관통하여 형성되는 안내공(321)을 관통하여, 상기 부쉬(30)의 외측에 형성되는 안착결합부(322)와 결합부재(40)를 이용하여 고정결합되고, 상기 고정결합 및 탈착은 사용자의 임의선택에 따라 가능한 것을 특징으로 한다.Meanwhile, the coupling portions 130 and 220 pass through a guide hole 321 formed through one side of the bush 30, and are coupled with a seating coupling portion 322 formed outside the bush 30. It is fixedly coupled using a member 40, and the fixed coupling and detachment are possible according to a user's random selection.
한편, 상기 범프포일(10)은, 상기 축중심에 대해서 직교하는 방향으로 둘 이상이 결합하여 구성되는 것을 특징으로 한다.Meanwhile, the bump foil 10 is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
그리고, 상기 탑은, 상기 축중심에 대해서 직교하는 방향으로 둘 이상이 결합하여 구성되는 것을 특징으로 한다.In addition, the tower is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
한편, 상기 본체링(510, 610)의 외주면에는, 상기 프론트 커버(50)에 구비된 결합부(110)의 형상에 대응되는 형상을 구비한 조립보스와, 조립공이 형성되어 있어서, 선택적으로 상기 쓰러스트 베어링을 조립 및 분해가 가능한 것을 특징으로 한다.On the other hand, an assembly boss having a shape corresponding to the shape of the coupling portion 110 provided in the front cover 50 and an assembly hole are formed on the outer circumferential surfaces of the main ring 510 and 610, so that the It is characterized in that it is possible to assemble and disassemble the thrust bearing.
그리고, 상기 범프(bump)는 상기 범프 연결부로 부터 중심축에 대해서 소정의 각도만큼 연장형성되고, 외경부는 상기 본체링의 내경부와 소경의 이격거리를 유지하여 형성되며, 축중심에 대해서 각각 대응되는 각도 및 위치에 2개소 이상으로 분할하여 구비되는 것을 특징으로 한다.In addition, the bump is formed to extend from the bump connection by a predetermined angle with respect to the central axis, and the outer diameter portion is formed by maintaining a distance between the inner diameter portion and the small diameter of the main ring, respectively, corresponding to the axis center It is characterized in that it is provided by dividing into two or more locations at an angle and position.
한편, 상기 범프 안착부(540)은 상기 탑 연결부(530)로 부터 중심축에 대해서 소정의 각도만큼 연장형성되고, 외경부는 상기 본체링(510, 610)의 내경부와 소경의 이격거리를 유지하여 형성되며, 축중심에 대해서 각각 대응되는 각도 및 위치에 2개소 이상으로 분할하여 구비되는 것을 특징으로 한다.On the other hand, the bump seating portion 540 is formed to extend from the tower connection portion 530 by a predetermined angle with respect to the central axis, and the outer diameter portion maintains a separation distance between the inner diameter portion and the small diameter of the main ring (510, 610). It is formed by dividing into two or more at an angle and position corresponding to the axis center.
이때, 2장의 탑과 범프를 축중심에 대해서 소정의 각도만큼 회전시켜서, 첫번째 장에 구비된 범프 안착부(540)를 두번째 장의 결합 스페이스에 위치시킨 후 겹쳐서 완성되는 것을 특징으로 한다.At this time, it is characterized in that the two towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and the bump seating portion 540 provided in the first sheet is placed in the second combination space and then overlapped.
한편, 3장의 탑과 범프를 축중심에 대해서 소정의 각도만큼 회전시켜서, 각각의 위치시킨 후 겹쳐서 완성되는 것을 특징으로 한다.On the other hand, it is characterized in that the three towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and are positioned after each of them, and then overlapped.
그리고, 2장 이상의 탑과 범프를 축중심에 대해서 소정의 각도만큼 회전시켜서, 각각의 위치시킨 후 겹쳐서 완성되는 것을 특징으로 한다.And, it is characterized in that the two or more towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and are then positioned respectively and then overlapped.
본 발명의 실시 예에 따른 상기와 같이 탈착가능한 에어포일 저널 베어링은, 완성된 범프포일(10)과 탑을 부쉬(30)에 형성된 안착결합부(322)와 결합부재(40)를 이용하여 결합한 후, 작업자의 선택에 따라서 탈착이 가능한 구성을 제공하게 된다.The detachable airfoil journal bearing as described above according to an embodiment of the present invention is a combination of the completed bump foil 10 and the top using the seating coupling portion 322 formed on the bush 30 and the coupling member 40 After that, a detachable configuration is provided according to the operator's choice.
본 발명의 실시 예에서는, 쓰러스트부(30)를 2장을 겹쳐서 한장의 완성된 쓰러스트부(30)가 되는 실시 예를 제시하였으나, 쓰러스트부(30)를 3장 또는 4장을 겹쳐서 혹은 그 이상의 갯수로 구성된 쓰러스트부(30)를 겹쳐서 한장의 쓰러스트부(30)를 완성하는 예 또한 가능할 것이다.In the exemplary embodiment of the present invention, two thrust portions 30 are stacked to form one complete thrust portion 30, but three or four thrust portions 30 are overlapped. Alternatively, an example of completing one thrust part 30 by overlapping the thrust part 30 composed of more than that number may also be possible.
그리고, 본 발명의 실시 예에서는, 결합부재(40)를 이용하여 필요시 손쉽게 탈착 및 수리가 용이한 구성을 가진 탈착가능한 에어포일 저널 베어링(1)의 구성의 제공을 통해서 조립 및 수리가 용이하고, 수리 및 교체에 따른 재료비 및 소요시간을 획기적으로 절감할 수 있는 효과를 가져올 수 있다.And, in the embodiment of the present invention, the assembly and repair are easy through the provision of the configuration of the detachable airfoil journal bearing 1 having a configuration that is easily detachable and repairable when necessary using the coupling member 40 In addition, material costs and time required for repair and replacement can be drastically reduced.
도 1은 에어블로워의 제품을 도시한 것이다.1 shows a product of an air blower.
도 2와 3은 본 발명의 실시 예에 따른 탈착가능한 에어포일 베어링이 장착된 에어블로워를 나타낸 도면이다.2 and 3 are views showing an air blower equipped with a detachable airfoil bearing according to an embodiment of the present invention.
도 4는 본 발명의 실시 예에 따른 에어포일 저널 베어링의 구성을 나타낸 분해사시도이다.4 is an exploded perspective view showing the configuration of an airfoil journal bearing according to an embodiment of the present invention.
도 5는 본 발명의 실시 예에 따른 에어포일 저널 베어링의 결합상태를 도시한 단면도이다.5 is a cross-sectional view showing an airfoil journal bearing coupled state according to an embodiment of the present invention.
도 6은 본 발명의 실시 예에 따른 탈착가능한 에어포일 쓰러스트 베어링의 구성을 설명하는 분해사시도 및 단면도이다.6 is an exploded perspective view and a cross-sectional view illustrating a configuration of a detachable airfoil thrust bearing according to an embodiment of the present invention.
도 7은 본 발명의 실시 예에 따른 에어포일 쓰러스트 베어링의 상세 구성을 나타내는 도면이다.7 is a view showing a detailed configuration of an airfoil thrust bearing according to an embodiment of the present invention.
이하에서는 도면을 참조하여, 본 발명의 구체적인 실시 예를 설명한다. 다만, 본 발명의 사상은 제시되는 실시 예에 제한되지 아니하며, 본 발명의 사상을 이해하는 당업자는 동일한 사상의 범위 내에서 다른 실시 예를 용이하게 제안할 수 있을 것이다.Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention will be able to easily propose other embodiments within the scope of the same idea.
도 1은 에어블로워의 제품을 도시한 것이다. 도 2와 3은 본 발명의 실시 예에 따른 탈착가능한 에어포일 저널 베어링(1)이 장착된 에어블로워를 나타낸 도면이다. 도 4는 본 발명의 실시 예에 따른 에어포일 저널 베어링의 구성을 나타낸 분해사시도이다. 도 5는 본 발명의 실시 예에 따른 에어포일 저널 베어링의 결합상태를 도시한 단면도이다.1 shows a product of an air blower. 2 and 3 are views showing an air blower equipped with a detachable airfoil journal bearing 1 according to an embodiment of the present invention. 4 is an exploded perspective view showing the configuration of an airfoil journal bearing according to an embodiment of the present invention. 5 is a cross-sectional view showing an airfoil journal bearing coupled state according to an embodiment of the present invention.
도면을 참조하면, 본 발명의 실시예에서는 에어블로워에 장착되는 에어포일 저널 베어링(1)을 기준으로 해서 설명하기로 하단. 도 1에서와 같이 에어포일 저널 베어링(1)은 에어블로워의 회전축의 양단에 한쌍이 축과 결합하여 구비된다.Referring to the drawings, in the embodiment of the present invention, it will be described on the basis of the airfoil journal bearing 1 mounted on the air blower. As shown in FIG. 1, the airfoil journal bearing 1 is provided at both ends of the rotary shaft of the air blower in combination with the shaft.
도 2는 에어포일 저널 베어링(1)이 장착된 에어블로워의 전체구성을 나타내는 단면도이다. 이를 참조하면, 외부의 공기를 흡입하여 수직방향으로 토출시키는 볼류트가 앞쪽에 구비되고, 볼류트의 일측에는 고정자와 회전자로 구성된 모터가 구비된다.2 is a cross-sectional view showing the overall configuration of an air blower equipped with an airfoil journal bearing 1. Referring to this, a volute for sucking external air and discharging it in a vertical direction is provided in the front, and a motor composed of a stator and a rotor is provided at one side of the volute.
볼류트로 회전동력을 제공하는 모터의 회전자 축과 한쌍의 본 발명의 실시 예에 따른 에어포일 쓰러스트 베어링(2)이 결합하여 구비된다. 터보기기 또는 공기사이클 기기에 사용되는 에어포일 저널 베어링에 있어서, 범프포일(10) 제조용 박판을 소정의 간격에 대해서 절곡시켜서 반복하여 형성되는 절곡부(110)와, 일단부에는 소정의 예각에 대해 연장형성되는 연결부(120, 210)와 상기 연결부(120, 210)에서 상기 절곡부(110)에 대해 평행하도록 연장형성된 결합부(130, 220)가 구비된 범프포일(10); 상기 범프포일(10)에 대응하는 폭과 길이로 형성되고, 상기 연결부(120, 210)와 결합부(130, 220)에 대응하는 연결부(120, 210)와 결합부(130, 220)가 구비되는 탑(20);과 상기 범프포일(10)과 탑(20)이 내주면에 안착되며, 일단부에는 상기 범프포일(10)과 탑(20)의 위치를 고정시키는 바텀고정부와 상기 연결부(120, 210)와 결합부(130, 220)가 관통하여 소정의 위치에 고정결합되도록 외주면에 음각형성되는 고정안착부가 구비되는 부쉬(30);를 포함하여 구성되고, 상기 탑(20)의 내주면에 상기 범프포일(10)을 위치시킨 후, 상기 탑(20)과 범프포일(10)을 상기 부쉬(30)의 내주면에 위치시키고 상기 연결부(120, 210)와 결합부(130, 220)를 상기 고정안착부에 소정의 결합부재(40)로 탈착이 가능하도록 구비되는 것을 특징으로 하는 탈착가능한 에어포일 저널 베어링의 구성을 제공한다.A rotor shaft of a motor that provides rotational power with a volute and a pair of airfoil thrust bearings 2 according to an embodiment of the present invention are provided in combination. In the airfoil journal bearing used in a turbo machine or an air cycle machine, a bent portion 110 formed by repeatedly bending a thin plate for manufacturing a bump foil 10 for a predetermined interval, and one end portion for a predetermined acute angle A bump foil 10 having extended connection portions 120 and 210 and coupling portions 130 and 220 extending parallel to the bent portion 110 at the connection portions 120 and 210; It is formed with a width and length corresponding to the bump foil 10, and includes connection portions 120 and 210 and coupling portions 130 and 220 corresponding to the connection portions 120 and 210 and the coupling portions 130 and 220 A top 20; And the bump foil 10 and the top 20 are mounted on the inner circumferential surface, and at one end, a bottom fixing part for fixing the positions of the bump foil 10 and the tower 20 and the connection part ( 120, 210) and the coupling portion (130, 220) to pass through and fixedly coupled to a predetermined position, a bush 30 provided with an intaglio-shaped fixing seating portion on the outer circumferential surface; and the inner circumferential surface of the tower 20 After placing the bump foil 10 on, the tower 20 and the bump foil 10 are positioned on the inner circumferential surface of the bush 30, and the connecting portions 120 and 210 and the coupling portions 130 and 220 are It provides a configuration of a detachable airfoil journal bearing, characterized in that it is provided to be detachable with a predetermined coupling member 40 on the fixed seating portion.
상기 부쉬(30)는 소정의 크기의 내경부가 형성되는 중공관 형태로 구비되고, 상기 내경부에는 상기 범프포일(10)과 탑(20)이 안착되게 된다.The bush 30 is provided in the form of a hollow tube in which an inner diameter portion of a predetermined size is formed, and the bump foil 10 and the tower 20 are mounted on the inner diameter portion.
이렇게 구성된 상기 저널 베어링은 고속회전을 하는 터보회전기기의 회전축과 결합하게 된다. 이때 상기 저널 베어링은 회전축의 양단의 소정의 위치에 한쌍이 축결합을 통해서 구비된다.The journal bearing configured in this way is coupled to the rotating shaft of a turbo rotating machine that rotates at high speed. At this time, a pair of the journal bearings are provided through shaft coupling at predetermined positions on both ends of the rotating shaft.
상기 저널 베어링은 회전축을 중심으로 탑(20), 범프포일(10) 그리고 부쉬(30) 순으로 차례대로 결합하여 구성된다.The journal bearing is configured by sequentially combining the top 20, the bump foil 10, and the bush 30 around the rotation shaft in this order.
이때, 상기 부쉬(30)에 형성되는 고정안착부에는, 상기 결합부(130, 220)가 관통가능도록 형성되는 안내공(321)과, 상기 결합부(130, 220)가 안착하여 고정결합가능하도록 상기 결합의 크기와 형상에 대응하도록 형성되는 안착결합부(322)를 포함하여 구성되고, 상기 결합부(130, 220)가 상기 안내공(321)을 관통하여 상기 안착결합부(322)에 위치하면 결합부재(40)로 고정결합 또는 탈착이 가능한 것을 특징으로 한다.At this time, in the fixed seating portion formed in the bush 30, a guide hole 321 formed so that the coupling portions 130 and 220 can pass through, and the coupling portions 130 and 220 are seated and fixedly coupled. It is configured to include a seating coupling portion 322 formed to correspond to the size and shape of the coupling, and the coupling portions 130 and 220 penetrate the guide hole 321 to the seating coupling portion 322 When positioned, it is characterized in that it can be fixedly coupled or detached with the coupling member 40.
상기 안내공(321)은 상기 부쉬(30)의 내경부에서 외주면으로 관통하여 형성되고, 후술할 상기 범프포일(10)과 톱에 형성된 연결부(120, 210) 및 결합부(130, 220)가 관통가능한 크기와 형상으로 구비된다.The guide hole 321 is formed by penetrating from the inner diameter portion of the bush 30 to the outer circumferential surface, and the bump foil 10 to be described later and the connecting portions 120 and 210 and the coupling portions 130 and 220 formed on the saw It is provided in a penetrable size and shape.
그리고, 사이 안착결합부(322)는 상기 부쉬(30)의 외면의 일측에 음각으로 형성되고, 상기 연결부(120, 210) 및 결합부(130, 220)가 안착가능한 크기와 형상으로 구비된다. 상기와 같이 음각으로 형성되는 이유는 상기 연결부(120, 210) 및 결합부(130, 220)가 상기 부쉬(30)의 외경의 크기 밖으로 돌출되지 않도록 하기 위함이다.In addition, the seating coupling portion 322 is formed in an intaglio on one side of the outer surface of the bush 30, and the connecting portions 120 and 210 and the coupling portions 130 and 220 are provided in a size and shape that can be seated. The reason for being formed as an intaglio as described above is to prevent the connecting portions 120 and 210 and the coupling portions 130 and 220 from protruding outside the size of the outer diameter of the bush 30.
상기 연결부(120, 210) 및 결합부(130, 220)는 상기 안착결합부(322)에 안착되고, 볼트, 리벳 혹은 현재 적용되고 있는 다양한 형태의 결합부재(40)를 이용하여 상기 부쉬(30)와 고정결합하게 된다.The connection portions 120 and 210 and the coupling portions 130 and 220 are mounted on the seating and coupling portions 322, and the bushes 30 are mounted using bolts, rivets or various types of coupling members 40 currently applied. ) And fixedly.
그리고, 상기 범프포일(10)은, 소정의 간격마다 소정의 높이 및 곡률로 반복하여 형성되는 절곡부(110)를 포함하여 구비되고, 일측에는 소정의 각도로 절곡되어 연장형성되는 연결부(120, 210)와, 상기 연결부(120, 210)의 단부에서 소정의 각도로 절곡형성되고, 상기 고정안착부에 대응하는 크기를 결합부(130, 220)를 포함하여 구비되고, 상기 범프포일(10)은 상기 부쉬(30)의 내측에 삽입하여 상기 결합부(130, 220)를 고정안착부에 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 한다.Further, the bump foil 10 includes a bent portion 110 that is repeatedly formed at a predetermined height and curvature at predetermined intervals, and has a connection portion 120 that is bent at a predetermined angle to extend at one side thereof, 210), and is bent at a predetermined angle at the ends of the connecting portions 120 and 210, and has a size corresponding to the fixed seating portion, including coupling portions 130 and 220, and the bump foil 10 Is characterized in that it is inserted into the inside of the bush 30, and the coupling portions 130 and 220 are detachable by using the coupling member 40 to the fixed seating portion.
상기 범프포일(10)은 소정의 간격마다 절곡형성되는 절곡부(110)가 구비된다. 상기 절곡부(110)는 다양한 형상으로 절곡되는 것이 일반적이다. 그리고 상기 범프포일(10)은 소재를 일정한 길이와 폭으로 절단하여 원재료가 구비된다.The bump foil 10 includes bent portions 110 that are bent at predetermined intervals. In general, the bent portion 110 is bent in various shapes. In addition, the bump foil 10 is provided with raw materials by cutting the material into a predetermined length and width.
그리고 상기 범프포일(10)의 일측에는 상기 연결부(120, 210)와 결합부(130, 220)가 형성되고, 혹은 연결부(120, 210)와 결합부(130, 220)가 상기 범프포일(10)과 결합부재(40) 등을 이용하여 결합되는 것도 가능하다.Further, at one side of the bump foil 10, the connecting portions 120 and 210 and the connecting portions 130 and 220 are formed, or the connecting portions 120 and 210 and the connecting portions 130 and 220 are provided with the bump foil 10. ) It is also possible to be coupled using a coupling member 40 and the like.
상기 범프포일(10)은 소정의 곡률을 가지도록 성형이 되고, 마찬가기로 곡률 성형이 된 탑(20)과 겹쳐서 상기 부쉬(30)의 내경부에 삽입되어 안착되게 된다.The bump foil 10 is molded to have a predetermined curvature, and likewise, the bump foil 10 is inserted and seated in the inner diameter of the bush 30 by overlapping with the curvature-molded tower 20.
한편, 상기 탑(20)은, 상기 범프포일(10)의 절곡부(110)의 크기와 형상에 대응하는 본체부(230)와, 상기 본체부(230)의 일측에는 상기 연결부(120, 210)와 결합부(130, 220)에 대응하는 크기와 형상으로 연결부(120, 210)와 결합부(130, 220)가 각각 구비되고, 상기 탑(20)은 상기 부쉬(30)의 내측에 삽입하여 상기 결합부(130, 220)를 고정안착부에 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 한다.On the other hand, the tower 20, the body portion 230 corresponding to the size and shape of the bent portion 110 of the bump foil 10, and the connection portion 120, 210 on one side of the body portion 230 ) And coupling portions 130 and 220 in a size and shape corresponding to the coupling portions 130 and 220, respectively, and the tower 20 is inserted into the bush 30 Thus, it is characterized in that it is possible to detach the coupling portions 130 and 220 by using the coupling member 40 to the fixed seating portion.
이때, 상기 범프포일(10)을 상기 탑(20)의 외면에 위치시킨 후, 상기 부쉬(30)의 내경의 크기에 대응하도록 절곡시킨 후 상기 부쉬(30)의 내주면에 삽입한 후, 상기 결합부(130, 220)를 상기 고정안착부에 안착시킨 후 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 한다.At this time, after placing the bump foil 10 on the outer surface of the tower 20, bending it to correspond to the size of the inner diameter of the bush 30, inserting it into the inner circumferential surface of the bush 30, and then combining After the parts 130 and 220 are seated on the fixed seating portion, it is characterized in that it can be detached using the coupling member 40.
한편, 상기 결합부(130, 220)는 상기 부쉬(30)의 일측에 관통하여 형성되는 안내공(321)을 관통하여, 상기 부쉬(30)의 외측에 형성되는 안착결합부(322)와 결합부재(40)를 이용하여 고정결합되고, 상기 고정결합 및 탈착은 사용자의 임의선택에 따라 가능한 것을 특징으로 한다.Meanwhile, the coupling portions 130 and 220 pass through a guide hole 321 formed through one side of the bush 30, and are coupled with a seating coupling portion 322 formed outside the bush 30. It is fixedly coupled using a member 40, and the fixed coupling and detachment are possible according to a user's random selection.
상기와 같은 구성을 통해서, 상기 탑(20) 또는 범프포일(10)이 파손되는 경우에 사용자는 상기 저널 베어링을 어셈블리 통채로 교체하는 것이 아니라, 파손이 된 해당부분만 결합부재(40)를 해체하여 분해 및 교체하는 것이 가능하다.Through the above configuration, when the tower 20 or the bump foil 10 is damaged, the user does not replace the journal bearing with the whole assembly, but disassembles the coupling member 40 only for the damaged part. It is possible to disassemble and replace.
한편, 상기 범프포일(10)은, 상기 축중심에 대해서 직교하는 방향으로 둘 이상이 결합하여 구성되는 것을 특징으로 한다.Meanwhile, the bump foil 10 is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
그리고, 상기 탑(20)은, 상기 축중심에 대해서 직교하는 방향으로 둘 이상이 결합하여 구성되는 것을 특징으로 한다.In addition, the tower 20 is characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
한편, 상기 부쉬(30)에는, 상기 범프포일(10)과 탑(20)을 삽입하는 개구부의 타측에는, 상기 범프포일(10)과 탑(20)의 정위치 이탈을 방지하는 바텀고정부가 더 구비되는 것을 특징으로 한다.On the other hand, in the bush 30, on the other side of the opening through which the bump foil 10 and the tower 20 are inserted, a bottom fixing part that prevents the bump foil 10 and the tower 20 from being in position It characterized in that it is provided.
도 6은 본 발명의 실시 예에 따른 탈착가능한 에어포일 쓰러스트 베어링의 구성을 설명하는 분해사시도 및 단면도이다. 도 7은 본 발명의 실시 예에 따른 에어포일 쓰러스트 베어링의 상세 구성을 나타내는 도면이다.6 is an exploded perspective view and a cross-sectional view illustrating a configuration of a detachable airfoil thrust bearing according to an embodiment of the present invention. 7 is a view showing a detailed configuration of an airfoil thrust bearing according to an embodiment of the present invention.
도면을 참조하면, 본 발명의 실시예에서는 에어블로워에 장착되는 에어포일 쓰러스트 베어링(2)을 기준으로 해서 설명하기로 하단. 도 1에서와 같이 에어포일 쓰러스트 베어링(2)은 에어블로워의 회전축의 일단부에 구비된다.Referring to the drawings, in the embodiment of the present invention, it will be described below based on the airfoil thrust bearing 2 mounted on the air blower. As shown in FIG. 1, the airfoil thrust bearing 2 is provided at one end of the rotating shaft of the air blower.
도 2는 에어포일 쓰러스트 베어링(2)이 장착된 에어블로워의 전체구성을 나타내는 단면도이다. 이를 참조하면, 외부의 공기를 흡입하여 수직방향으로 토출시키는 볼류트가 앞쪽에 구비되고, 볼류트의 일측에는 고정자와 회전자로 구성된 모터가 구비된다.2 is a cross-sectional view showing the overall configuration of an air blower equipped with an airfoil thrust bearing 2. Referring to this, a volute for sucking external air and discharging it in a vertical direction is provided in the front, and a motor composed of a stator and a rotor is provided at one side of the volute.
볼류트로 회전동력을 제공하는 모터의 회전자의 단부에 본 발명의 실시 예에 따른 에어포일 쓰러스트 베어링(2)이 구비된다. 터보기기 또는 에어블로워 기기 등에 구비되는 에어포일 쓰러스트 베어링(2)에 있어서, 쓰러스트부(30)가 안착되는 공간을 제공하고, 상기 쓰러스트부(30)가 선택적으로 탈착이 가능하도록 형성된 결합부(110)가 구비된 프론트 커버(50)와; 상기 프론트 커버(50)로부터 선택적으로 탈착이 가능하도록 구비되며, 소정의 외경을 가진 본체링(510, 610)과, 기 본체링(510, 610)으로부터 중심축 방향으로 돌출되어 1개소 이상에 형성되는 탑 지지부(520)와, 기 탑 지지부(520)에 대해서 소정의 각도만큼 테이퍼지도록 형성되는 탑 연결부(530)와, 상기 탑 연결부(530)로부터 소정의 길이만큼 연장되어 형성되고, 상기 본체링(510, 610)과는 소정의 이격거리를 유지한채 평행하도록 형성되는 범프 안착부(540)를 포함하여 구비되는 탑(300); 상기 탑에 대응하는 크기와 형상으로 구비되고, 본체링, 범프지지부(620), 범프연결부(630)와 절곡부(640)를 포함하여 구비되는 범프(bump)(600)와; 상기 프론트 커버(50)와 결합하여 상기 쓰러스트 베어링을 차폐하는 리어 커버(60);를 포함하여 구성되고, 상기 탑과 범프(600)를 중심축에 대해서 소정의 각도만큼 회전시킨 후 겹쳐서 정위치시킨 후, 범프 안착부(540)를 이용하여 선택적으로 조립분해가 가능한 것을 특징으로 한다.An airfoil thrust bearing 2 according to an embodiment of the present invention is provided at an end of a rotor of a motor that provides rotational power with a volute. In the airfoil thrust bearing (2) provided in a turbo device or an air blower device, a combination formed to provide a space in which the thrust part (30) is seated, and the thrust part (30) is selectively detachable A front cover 50 provided with a part 110; It is provided so as to be selectively detachable from the front cover 50 and is formed at one or more locations by protruding from the main body rings 510 and 610 having a predetermined outer diameter and the main body rings 510 and 610 in the central axis direction. The top support 520 is formed, the tower connection 530 is formed to be tapered by a predetermined angle with respect to the tower support 520, and is formed to extend from the tower connection 530 by a predetermined length, and the main ring A tower 300 provided including a bump seating portion 540 formed to be parallel to the 510 and 610 while maintaining a predetermined distance; A bump 600 having a size and shape corresponding to the tower, and including a body ring, a bump support part 620, a bump connection part 630 and a bent part 640; A rear cover 60 that is coupled with the front cover 50 to shield the thrust bearing, and rotates the tower and the bump 600 by a predetermined angle with respect to the central axis, and then overlaps to a correct position. After that, it is characterized in that it can be selectively assembled and disassembled using the bump seating portion 540.
이때, 상기 본체링(510, 610)의 외주면에는, 상기 프론트 커버(50)에 구비된 결합부(110)의 형상에 대응되는 형상을 구비한 조립보스와, 조립공이 형성되어 있어서, 선택적으로 상기 쓰러스트 베어링을 조립 및 분해가 가능한 것을 특징으로 한다.At this time, an assembly boss having a shape corresponding to the shape of the coupling portion 110 provided in the front cover 50 and an assembly hole are formed on the outer circumferential surfaces of the main ring 510 and 610, so that the It is characterized in that it is possible to assemble and disassemble the thrust bearing.
그리고, 상기 범프(bump)(600)는 상기 범프 연결부로 부터 중심축에 대해서 소정의 각도만큼 연장형성되고, 외경부는 상기 본체링의 내경부와 소경의 이격거리를 유지하여 형성되며, 축중심에 대해서 각각 대응되는 각도 및 위치에 2개소 이상으로 분할하여 구비되는 것을 특징으로 한다.In addition, the bump 600 is formed to extend from the bump connection part by a predetermined angle with respect to the central axis, and the outer diameter part is formed by maintaining a distance between the inner diameter part and the small diameter of the main ring, and It is characterized in that it is provided by dividing into two or more at each corresponding angle and position.
한편, 상기 범프 안착부(540)은 상기 탑 연결부(530)로 부터 중심축에 대해서 소정의 각도만큼 연장형성되고, 외경부는 상기 본체링(510, 610)의 내경부와 소경의 이격거리를 유지하여 형성되며, 축중심에 대해서 각각 대응되는 각도 및 위치에 2개소 이상으로 분할하여 구비되는 것을 특징으로 한다.On the other hand, the bump seating portion 540 is formed to extend from the tower connection portion 530 by a predetermined angle with respect to the central axis, and the outer diameter portion maintains a separation distance between the inner diameter portion and the small diameter of the main ring (510, 610). It is formed by dividing into two or more at an angle and position corresponding to the axis center.
이때, 2장의 탑과 범프(600)를 축중심에 대해서 소정의 각도만큼 회전시켜서, 첫번째 장에 구비된 범프 안착부(540)이 두번째 장의 결합 스페이스에 위치시킨 후 겹쳐서 완성되는 것을 특징으로 한다.At this time, the two towers and the bumps 600 are rotated by a predetermined angle with respect to the center of the axis, so that the bump seating portion 540 provided in the first sheet is positioned in the coupling space of the second sheet and then overlapped.
한편, 3장의 탑과 범프(600)를 축중심에 대해서 소정의 각도만큼 회전시켜서, 각각의 위치시킨 후 겹쳐서 완성되는 것을 특징으로 한다.On the other hand, it is characterized in that the three towers and bumps 600 are rotated by a predetermined angle with respect to the center of the axis, and are then positioned respectively and then overlapped.
그리고, 2장 이상의 탑과 범프(600)를 축중심에 대해서 소정의 각도만큼 회전시켜서, 각각의 위치시킨 후 겹쳐서 완성되는 것을 특징으로 한다.In addition, two or more towers and bumps 600 are rotated by a predetermined angle with respect to the center of the axis, and are respectively positioned and then overlapped.
예를 들면, 상기 탑이 중심축에 대해서 각각 의 위치마다 3개가 구비되고, 상기 각 탑과 탑사이에는 결합 스페이스가 구비된다. 상기와 같은 구성을 가진 2장의 본체링(510, 610)을 중심축에 대해서 서로 120°엇갈리게 겹치게 하면, 각각의 본체링(510, 610)에 형성된 결합 스페이스에는 탑이 위치하게 되어 하나의 쓰러스트부가 완성된다.For example, three towers are provided at each position with respect to the central axis, and a coupling space is provided between each tower and the tower. If the two main ring (510, 610) having the above configuration are overlapped with each other by 120° with respect to the central axis, a tower is located in the coupling space formed in each of the main ring (510, 610) and one thrust The wealth is completed.
다른 실시 예로, 상기 본체링(510, 610)의 중심축에서 각각 90°되는 지점에 4개의 탑이 구비되고, 상기 각 4개의 탑 사이에는 결합 스페이스가 형성되는 본체링(510, 610)이 구비된다.In another embodiment, four towers are provided at points 90° from the central axis of the main rings 510 and 610, and body rings 510 and 610 in which a coupling space is formed between each of the four towers are provided. do.
이때, 2장의 쓰러스트부(30)를 축중심에 대해서 소정의 각도만큼 회전시켜서, 첫번째 장에 구비된 범프 안착부(540)이 두번째 장의 결합 스페이스에 위치시킨 후 겹쳐서 쓰러스트 부가 완성되는 것을 특징으로 하는 탈착가능한 에어포일 쓰러스트 베어링(2)이 완성된다.At this time, the two thrust portions 30 are rotated by a predetermined angle with respect to the center of the axis, and the bump seating portion 540 provided in the first sheet is positioned in the coupling space of the second sheet, and then the thrust is completed by overlapping. The removable airfoil thrust bearing (2) is completed.
상기와 같이 구성된 본체링(510, 610) 2장을 앞서와 같은 방법으로 겹치면 한장의 쓰러스트부(30)가 완성된다. 이렇게 완성된 쓰러스트부(30)를 상기 프론트 커버(50)와 결합시킨 후, 리어 커버(60)를 조립하면 쓰러스트 베어링이 완성된다.When the two main rings 510 and 610 configured as described above are overlapped in the same manner as before, a single thrust portion 30 is completed. The thrust bearing is completed by assembling the rear cover 60 after combining the thrust part 30 thus completed with the front cover 50.
상기와 같은 구성을 가진 쓰러스트 베어링은, 쓰러스트 베어링의 일부 구성이 마모되거나 파손되어 수리 또는 교체가 필요한 경우에 손쉽게 분해 및 교체가 용이한 구성을 제공하게 된다.The thrust bearing having the above configuration provides a configuration that can be easily disassembled and replaced when a part of the thrust bearing is worn or damaged and needs repair or replacement.
나아가, 상기 쓰러스트부(30)의 일부 탑이나 범프(bump)(600) 부분이 파손되거나 마모되는 경우에는 전체를 교체할 필요가 없이 교체가 필요한 탑이 범프(600)가 있는 부분의 쓰러스트부(30)만을 교체가 가능한 구성을 제공한다.Further, in the case that some towers or bumps 600 of the thrust part 30 are damaged or worn, the tower requiring replacement is not required to replace the entire thrust of the bump 600 It provides a configuration that can be replaced only the part 30.
상기와 같은 본 발명의 실시 예에 따른 상기와 같이 탈착가능한 에어포일 쓰러스트 베어링(2)은, 완성된 쓰러스트부(30)를 상기 프런트 커버의 결합부(110)와 범프 안착부(540)를 결합부재(40)을 이용한 통해서 결합한 후, 작업자의 선택에 따라서 탈착이 가능한 것을 특징으로 한다.The detachable airfoil thrust bearing 2 according to the embodiment of the present invention as described above includes the completed thrust part 30 with the coupling part 110 and the bump seating part 540 of the front cover. After being coupled through the coupling member 40, it is characterized in that the detachment is possible according to the operator's choice.
본 발명의 실시 예에서는, 쓰러스트부(30)를 2장을 겹쳐서 한장의 완성된 쓰러스트부(30)가 되는 실시 예를 제시하였으나, 쓰러스트부(30)를 3장 또는 4장을 겹쳐서 혹은 그 이상의 갯수로 구성된 쓰러스트부(30)를 겹쳐서 한장의 쓰러스트부(30)를 완성하는 예 또한 가능할 것이다.In the exemplary embodiment of the present invention, two thrust portions 30 are stacked to form one complete thrust portion 30, but three or four thrust portions 30 are overlapped. Alternatively, an example of completing one thrust part 30 by overlapping the thrust part 30 composed of more than that number may also be possible.
도 7을 참조하면, 상기 탑 지지부(520)에 대해서 소정의 각도만큼 테이퍼지도록 형성되는 탑 연결부(530)는 상기 탑 지지부(520)으로부터 소정의 곡율을 가지도록 완만한 곡선형태로 형성되고, 상기 범프 안착부(540)부는 상기 탑 지지부(520)의 곡률과 반대되는 곡률을 가지고 상기 탑 지지부(520)로부터 연장 형성되는 것 또한 가능하다.Referring to FIG. 7, a tower connection part 530 formed to be tapered by a predetermined angle with respect to the tower support part 520 is formed in a gentle curved shape to have a predetermined curvature from the tower support part 520, and the It is also possible that the bump seating part 540 has a curvature opposite to that of the tower support part 520 and extends from the tower support part 520.
도 7에서와 같이, 상기 범프 안착부(540)부가 소정의 곡률을 가지도록 형성됨으로써, 쓰러스트 베어링이 추력을 받아서 상기 리어 커버(60)의 일측면과 접촉하는 경우에, 그 접촉면이 완만하게 곡률을 가진 경우에는 접촉되면 면적이 적어서 마찰 등으로 인한 마모 등으로 인하여 접촉면이 닳거나 파손되는 경우를 구조적으로 최소화함으로써 내구성을 보다 향상시킬 수 있는 구성을 제공할 수 있다.As shown in FIG. 7, the bump seating portion 540 is formed to have a predetermined curvature, so that when the thrust bearing receives thrust and contacts one side of the rear cover 60, the contact surface is smooth. In the case of curvature, the contact surface is small when contacted, and thus a configuration capable of further improving durability can be provided by structurally minimizing the case where the contact surface is worn or damaged due to abrasion due to friction or the like.
다만, 본 발명의 실시 예에서는, 복수의 쓰러스트부(30)를 겹쳐서 한장의 쓰러스트부(30)를 완성하고, 이를 기존의 용접을 통해서 결합하는 방식이 아닌 결합부재(40)를 이용해서 필요시 손쉽게 탈착 및 수리가 용이한 구성을 가진 탈착가능한 에어포일 쓰러스트 베어링(2)의 구성을 제공하고자 한다.However, in the embodiment of the present invention, a plurality of thrust parts 30 are overlapped to complete a single thrust part 30, and this is not combined through conventional welding, but a coupling member 40 is used. It is intended to provide a configuration of a removable airfoil thrust bearing (2) having a configuration that can be easily removed and repaired if necessary.
상기와 같은 구성을 가진 본 발명의 실시 예에 따른 에어포일 베어링에 의할 때, 상기 탑(20) 또는 범프포일(10)이 파손되는 경우에 사용자는 상기 저널 베어링을 어셈블리 통채로 교체하는 것이 아니라, 파손이 된 해당부분만 결합부재(40)를 해체하여 분해 및 교체하는 것이 가능한 구성을 통해서, 경제적이고 신뢰성을 구비한 제품을 제공하는 것이 가능하다.When using the airfoil bearing according to the embodiment of the present invention having the above configuration, when the tower 20 or the bump foil 10 is damaged, the user does not replace the journal bearing with the whole assembly. , It is possible to provide an economical and reliable product through a configuration capable of disassembling and replacing only the damaged part of the coupling member 40.
* 부호의 설명* Explanation of the sign
1. 에어포일 저널 베어링 10. 범프포일1. Airfoil journal bearing 10. Bump foil
20. 탑 30. 부쉬20. Top 30. Bush
110. 절곡부 120. 연결부110. Bend 120. Connection
130. 결합부 210. 연결부130. Joint 210. Connection
220. 결합부 310. 바텀고정부220. Joint 310. Bottom fixing
320. 고정안착부 321. 안내공320. Fixed seat 321. Guide hole
322. 안착결합부 40. 결합부재322. Seating coupling part 40. coupling member
230. 본체부230. Body
2. 에어포일 쓰러스트 베어링 50. 프론트 커버2. Airfoil Thrust Bearing 50. Front Cover
60. 리어 커버 70. 쓰러스트부60. Rear cover 70. Thrust part
510. 본체링 520. 탑 지지부510. Body ring 520. Top support
530. 탑 연결부 540. 범프 안착부530. Top connection 540. Bump seat
600. 범프(bump) 610. 본체링600. Bump 610. Body Ring
620. 범프지지부 630. 범프연결부620. Bump support 630. Bump connection
640. 절곡부 640. Bend

Claims (14)

  1. 터보기기 또는 공기사이클 기기에 사용되는 에어포일 베어링에 있어서,In the airfoil bearing used in a turbo machine or an air cycle machine,
    회전동력을 제공하는 모터의 회전자 축과 결합하고, 범프포일(10) 제조용 박판을 소정의 간격에 대해서 절곡시켜서 반복하여 형성되는 절곡부(110)와, 일단부에는 소정의 예각에 대해 연장형성되는 연결부(120, 210)와 상기 연결부(120, 210)에서 상기 절곡부(110)에 대해 평행하도록 연장형성된 결합부(130, 220)가 구비된 범프포일(10), 상기 범프포일(10)에 대응하는 폭과 길이로 형성되고, 상기 연결부(120, 210)와 결합부(130, 220)에 대응하는 연결부(120, 210)와 결합부(130, 220)가 구비되는 탑(20)과 상기 범프포일(10)과 탑(20)이 내주면에 안착되며, 일단부에는 상기 범프포일(10)과 탑(20)의 위치를 고정시키는 바텀고정부와 상기 연결부(120, 210)와 결합부(130, 220)가 관통하여 소정의 위치에 고정결합되도록 외주면에 음각형성되는 고정안착부가 구비되는 부쉬(30);를 포함하여 구성되는 저널 베어링부와;Combined with the rotor shaft of the motor providing rotational power, the bent portion 110 formed by repeatedly bending the thin plate for manufacturing the bump foil 10 for a predetermined interval, and an extension formed at one end for a predetermined acute angle The bump foil 10 provided with the connecting portions 120 and 210 and the connecting portions 130 and 220 extending parallel to the bent portion 110 at the connecting portions 120 and 210, the bump foil 10 The tower 20 is formed in a width and length corresponding to the connection portions 120 and 210 and the connection portions 120 and 210 corresponding to the coupling portions 130 and 220 and the coupling portions 130 and 220 are provided. The bump foil 10 and the top 20 are seated on the inner circumferential surface, and at one end, a bottom fixing portion fixing the positions of the bump foil 10 and the top 20, the connection portions 120 and 210 and a coupling portion A journal bearing unit comprising: a bush 30 provided with a negatively shaped fixing seating portion on an outer circumferential surface such that the (130, 220) penetrates and is fixedly coupled to a predetermined position;
    소정의 안착 공간을 제공하고, 상기 쓰러스트부(70)가 선택적으로 탈착이 가능하도록 형성된 결합부(110)가 구비된 프론트 커버(50)와, 상기 프론트 커버(50)로부터 선택적으로 탈착이 가능하도록 구비되며, 소정의 외경을 가진 본체링(510, 610)과, 기 본체링(510, 610)으로부터 중심축 방향으로 돌출되어 1개소 이상에 형성되는 탑 지지부(520)와, 기 탑 지지부(520)에 대해서 소정의 각도만큼 테이퍼지도록 형성되는 탑 연결부(530)와, 상기 탑 연결부(530)로부터 소정의 길이만큼 연장되어 형성되고, 상기 본체링(510, 610)과는 소정의 이격거리를 유지한채 평행하도록 형성되는 범프 안착부(540)를 포함하여 구비되는 탑(300), 상기 탑에 대응하는 크기와 형상으로 구비되고, 본체링, 범프지지부(620), 범프연결부(630)와 절곡부(640)를 포함하여 구비되는 범프(bump)(600)와, 상기 프론트 커버(50)와 결합하여 상기 쓰러스트 베어링을 차폐하는 리어 커버(60)를 포함하여 구성되되는 쓰러스트 베어링부;를 포함하여 구성되고,A front cover 50 provided with a coupling part 110 formed to provide a predetermined seating space and selectively detachably from the thrust part 70, and selectively detachable from the front cover 50 And the main body rings 510 and 610 having a predetermined outer diameter, the tower support 520 protruding from the main body rings 510 and 610 in the central axis direction and formed at one or more places, and the tower support A tower connecting portion 530 formed to be tapered with respect to 520 by a predetermined angle, and extending from the tower connecting portion 530 by a predetermined length, and having a predetermined distance from the main ring 510 and 610 A tower 300 provided including a bump seating portion 540 formed in parallel while being maintained, provided in a size and shape corresponding to the tower, and bent with a main ring, a bump support portion 620, and a bump connection portion 630 A thrust bearing unit including a bump 600 including a portion 640 and a rear cover 60 coupled to the front cover 50 to shield the thrust bearing; It is composed including,
    상기 저널 베어링부와 쓰러스트 베어링부는 각각 선택적으로 조립분해가 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.An airfoil bearing for assembling and disassembling air blowers, wherein the journal bearing part and the thrust bearing part are selectively assembled and disassembled.
  2. 제 1항에 있어서,The method of claim 1,
    상기 부쉬(30)에 형성되는 고정안착부에는, In the fixed seating portion formed on the bush 30,
    상기 결합부(130, 220)가 관통가능도록 형성되는 안내공(321)과,A guide hole 321 formed so that the coupling portions 130 and 220 can penetrate,
    상기 결합부(130, 220)가 안착하여 고정결합가능하도록 상기 결합의 크기와 형상에 대응하도록 형성되는 안착결합부(322)를 포함하여 구성되고,Consisting of including a seating coupling portion 322 formed to correspond to the size and shape of the coupling so that the coupling portions 130 and 220 are seated and fixedly coupled,
    상기 결합부(130, 220)가 상기 안내공(321)을 관통하여 상기 안착결합부(322)에 위치하면 결합부재(40)로 고정결합 또는 탈착이 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.For assembling and disassembling air blowers, characterized in that when the coupling portions 130 and 220 penetrate the guide hole 321 and are located in the seating coupling portion 322, the coupling member 40 can be fixedly coupled or detached. Airfoil bearing.
  3. 제 2항에 있어서,The method of claim 2,
    상기 범프포일(10)은,The bump foil 10,
    소정의 간격마다 소정의 높이 및 곡률로 반복하여 형성되는 절곡부(110)를 포함하여 구비되고,It is provided including a bent portion 110 that is repeatedly formed at a predetermined height and curvature at predetermined intervals,
    일측에는 소정의 각도로 절곡되어 연장형성되는 연결부(120, 210)와,One side is bent at a predetermined angle to extend the connection portion (120, 210),
    상기 연결부(120, 210)의 단부에서 소정의 각도로 절곡형성되고, 상기 고정안착부에 대응하는 크기를 결합부(130, 220)를 포함하여 구비되고,It is bent at a predetermined angle at the ends of the connection parts 120 and 210 and has a size corresponding to the fixed seating part, including the coupling parts 130 and 220,
    상기 범프포일(10)은 상기 부쉬(30)의 내측에 삽입하여 상기 결합부(130, 220)를 고정안착부에 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.The bump foil 10 is an assembly and disassembly air blower, characterized in that the bump foil 10 is inserted into the inside of the bush 30 so that the coupling portions 130 and 220 are detachable using the coupling member 40 on the fixed seating portion. Airfoil bearing.
  4. 제 3항에 있어서,The method of claim 3,
    상기 탑(20)은,The tower 20,
    상기 범프포일(10)의 절곡부(110)의 크기와 형상에 대응하는 본체부(230)와,A body portion 230 corresponding to the size and shape of the bent portion 110 of the bump foil 10,
    상기 본체부(230)의 일측에는 상기 연결부(120, 210)와 결합부(130, 220)에 대응하는 크기와 형상으로 연결부(120, 210)와 결합부(130, 220)가 각각 구비되고,One side of the main body 230 is provided with connecting portions 120 and 210 and connecting portions 130 and 220 in a size and shape corresponding to the connecting portions 120 and 210 and the connecting portions 130 and 220, respectively,
    상기 탑(20)은 상기 부쉬(30)의 내측에 삽입하여 상기 결합부(130, 220)를 고정안착부에 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.The tower 20 is for assembling and disassembling air blowers, characterized in that it is inserted into the inside of the bush 30 and the coupling parts 130 and 220 are detachable by using the coupling member 40 to the fixed seating part. Airfoil bearing.
  5. 제 4항에 있어서,The method of claim 4,
    상기 범프포일(10)을 상기 탑(20)의 외면에 위치시킨 후, 상기 부쉬(30)의 내경의 크기에 대응하도록 절곡시킨 후 상기 부쉬(30)의 내주면에 삽입한 후,After placing the bump foil 10 on the outer surface of the tower 20, bending it to correspond to the size of the inner diameter of the bush 30, and inserting it into the inner circumferential surface of the bush 30,
    상기 결합부(130, 220)를 상기 고정안착부에 안착시킨 후 결합부재(40)를 이용하여 탈착이 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.An airfoil bearing for assembling and disassembling air blowers, characterized in that the coupling portions (130, 220) are seated on the fixed seating portion and then detachable using the coupling member (40).
  6. 제 5항에 있어서,The method of claim 5,
    상기 결합부(130, 220)는 상기 부쉬(30)의 일측에 관통하여 형성되는 안내공(321)을 관통하여,The coupling portions 130 and 220 pass through a guide hole 321 formed through one side of the bush 30,
    상기 부쉬(30)의 외측에 형성되는 안착결합부(322)와 결합부재(40)를 이용하여 고정결합되고,It is fixedly coupled using a seating coupling portion 322 and a coupling member 40 formed on the outside of the bush 30,
    상기 고정결합 및 탈착은 사용자의 임의선택에 따라 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.The fixed coupling and detachable airfoil bearing for assembling and disassembling air blower, characterized in that it is possible according to a user's random selection.
  7. 제 1항에 있어서,The method of claim 1,
    상기 범프포일(10)은,The bump foil 10,
    상기 축중심에 대해서 직교하는 방향으로 둘 이상이 결합하여 구성되는 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.Airfoil bearing for assembling and disassembling air blower, characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
  8. 제 1항에 있어서,The method of claim 1,
    상기 탑(20)은,The tower 20,
    상기 축중심에 대해서 직교하는 방향으로 둘 이상이 결합하여 구성되는 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.Airfoil bearing for assembling and disassembling air blower, characterized in that it is configured by combining two or more in a direction orthogonal to the axis center.
  9. 제 1항에 있어서,The method of claim 1,
    상기 본체링(510, 610)의 외주면에는,On the outer peripheral surface of the main ring (510, 610),
    상기 프론트 커버(50)에 구비된 결합부(110)의 형상에 대응되는 형상을 구비한 조립보스와, 조립공이 형성되어 있어서,An assembly boss having a shape corresponding to the shape of the coupling portion 110 provided in the front cover 50 and an assembly hole are formed,
    선택적으로 상기 쓰러스트 베어링을 조립 및 분해가 가능한 것을 특징으로 하는 조립분해가능한 에어블로워용 에어포일 베어링.An airfoil bearing for assembling and disassembling air blowers, characterized in that the thrust bearing is optionally assembled and disassembled.
  10. 제 1항에 있어서,The method of claim 1,
    상기 범프(600)는 상기 범프 연결부로 부터 중심축에 대해서 소정의 각도만큼 연장형성되고, 외경부는 상기 본체링의 내경부와 소경의 이격거리를 유지하여 형성되며, 축중심에 대해서 각각 대응되는 각도 및 위치에 2개소 이상으로 분할하여 구비되는 것을 특징으로 하는 조립분해가능한 에어포일 쓰러스트 베어링.The bump 600 is formed to extend from the bump connection part by a predetermined angle with respect to the central axis, and the outer diameter part is formed by maintaining a distance between the inner diameter part and the small diameter of the main ring, and each corresponding angle with respect to the axis center And an assembly and disassembly airfoil thrust bearing, characterized in that it is provided by being divided into two or more positions at a location.
  11. 제 1항에 있어서,The method of claim 1,
    상기 범프 안착부(540)은 상기 탑 연결부(530)로 부터 중심축에 대해서 소정의 각도만큼 연장형성되고, 외경부는 상기 본체링(510, 610)의 내경부와 소경의 이격거리를 유지하여 형성되며, 축중심에 대해서 각각 대응되는 각도 및 위치에 2개소 이상으로 분할하여 구비되는 것을 특징으로 하는 조립분해가능한 에어포일 쓰러스트 베어링.The bump seating portion 540 is formed to extend from the tower connection portion 530 by a predetermined angle with respect to the central axis, and the outer diameter portion is formed by maintaining a distance between the inner diameter portion and the small diameter of the main ring 510, 610 And, assembly and disassembly airfoil thrust bearing, characterized in that provided by dividing into two or more at an angle and position respectively corresponding to the axis center.
  12. 제 10항 또는 제 11항에 있어서,The method of claim 10 or 11,
    2장의 탑과 범프를 축중심에 대해서 소정의 각도만큼 회전시켜서, 첫번째 장에 구비된 범프 안착부(540)를 두번째 장의 결합 스페이스에 위치시킨 후 겹쳐서 완성되는 것을 특징으로 하는 조립분해가능한 에어포일 쓰러스트 베어링.Assembling and disassembling airfoil, characterized in that the two towers and bumps are rotated by a predetermined angle with respect to the center of the axis, and the bump seating portion 540 provided in the first sheet is placed in the second joint space, and then overlapped. Bearing.
  13. 제 10항 또는 제 11항에 있어서,The method of claim 10 or 11,
    3장의 탑과 범프를 축중심에 대해서 소정의 각도만큼 회전시켜서, 각각의 위치시킨 후 겹쳐서 완성되는 것을 특징으로 하는 조립분해가능한 에어포일 쓰러스트 베어링.Assembling and disassembling airfoil thrust bearing, characterized in that the three towers and bumps are rotated by a predetermined angle with respect to the center of the axis, positioned, and then overlapped.
  14. 제 10항 또는 제 11항에 있어서,The method of claim 10 or 11,
    2장 이상의 탑과 범프를 축중심에 대해서 소정의 각도만큼 회전시켜서, 각각의 위치시킨 후 겹쳐서 완성되는 것을 특징으로 하는 조립분해가능한 에어포일 쓰러스트 베어링.Assembling and disassembling airfoil thrust bearings, characterized in that two or more towers and bumps are rotated by a predetermined angle with respect to an axis center, positioned, and then overlapped.
PCT/KR2019/004784 2019-04-11 2019-04-19 Air foil bearing for air blower that can be assembed and disassembled WO2020209433A1 (en)

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