WO2016140437A1 - Structure for coupling eccentric bush of scroll compressor - Google Patents

Structure for coupling eccentric bush of scroll compressor Download PDF

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Publication number
WO2016140437A1
WO2016140437A1 PCT/KR2016/000806 KR2016000806W WO2016140437A1 WO 2016140437 A1 WO2016140437 A1 WO 2016140437A1 KR 2016000806 W KR2016000806 W KR 2016000806W WO 2016140437 A1 WO2016140437 A1 WO 2016140437A1
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WO
WIPO (PCT)
Prior art keywords
scroll compressor
eccentric bush
coupling structure
bushing
avoiding groove
Prior art date
Application number
PCT/KR2016/000806
Other languages
French (fr)
Korean (ko)
Inventor
황인국
임권수
정수철
Original Assignee
한온시스템 주식회사
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 KR1020150184487A external-priority patent/KR102291952B1/en
Application filed by 한온시스템 주식회사 filed Critical 한온시스템 주식회사
Priority to CN201680000962.4A priority Critical patent/CN106133323B/en
Priority to US15/506,020 priority patent/US10309403B2/en
Publication of WO2016140437A1 publication Critical patent/WO2016140437A1/en
Priority to US16/402,636 priority patent/US11098717B2/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00

Definitions

  • the present invention relates to an eccentric bush coupling structure of a scroll compressor, and more particularly, to an eccentric bush coupling structure of a scroll compressor for rotating by rotating the swing scroll eccentrically coupled to the rotation axis of the drive motor in the electric scroll compressor.
  • an automobile is provided with an air conditioning apparatus for heating and cooling the room.
  • an air conditioning apparatus includes a compressor for compressing low-temperature, low-pressure gaseous refrigerant drawn from an evaporator into a high-temperature, high-pressure gaseous refrigerant as a constitution of a cooling system and sending it to a condenser.
  • Compressors that serve to compress the refrigerant in a vehicle cooling system include a reciprocating type for compressing the refrigerant and a rotary type for performing the compression while rotating.
  • the reciprocating type there is a crank type which transmits the driving force of the driving source to a plurality of pistons using a crank, a swash plate type which transmits to a rotating shaft provided with a swash plate, and a wobble plate type that uses a wobble plate.
  • vane rotary type used, scroll type using turning scroll and fixed scroll.
  • the scroll compressor 100 includes a housing 200, a fixed scroll 300 provided inside the housing 200, and a driving motor 400 for driving the swing scroll 600. And, an eccentric bush 500 coupled to the rotation shaft 410 of the drive motor 400, and a swing scroll 600 coupled to the eccentric bush 500 to revolve with the fixed scroll 300 to form a compression chamber. Include.
  • the swinging scroll 600 is eccentrically coupled to the eccentric shaft 411 of the rotating shaft 410 by the eccentric bush 500, the eccentric bush 500 receives the rotational force from the rotating shaft 410 to rotate the turning scroll 600 Exercise
  • the eccentric bush 500 is integrally formed with a balance weight 550 to balance the eccentric rotation.
  • the eccentric bush 500 is manufactured by forging, the overall shape is manufactured and further processed to the part that requires the dimensional precision to the lathe. This becomes rough, and when the finish of the eccentric bushing 500 in the state having such a rough sliding surface is the surface is scraped off when friction with the rotating shaft 410 of the drive motor 400.
  • the present invention was created to improve the problems of the eccentric bush coupling structure of the conventional scroll compressor as described above. It is an object of the present invention to provide an eccentric bush coupling structure of a scroll compressor that can be prevented.
  • the eccentric bush coupling structure of the scroll compressor according to the present invention includes a bushing body which is rotatably coupled to the swinging scroll and pinned eccentrically to the rotational axis of the drive motor.
  • the bushing body is provided with a bushing surface facing the front end surface of the rotating shaft, and the friction avoiding groove forming the non-contact portion of the bushing body and the rotating shaft on at least one of the bushing surface of the bushing body or the front end surface of the rotating shaft. Characterized in that formed.
  • the friction avoiding groove may be formed in a circular shape.
  • the friction avoiding groove is the center of the circle is formed on the center of rotation of the rotation axis.
  • a pinhole for fitting the eccentric shaft is formed in the bushing body, and the friction avoiding groove is formed on the bushing surface of the bushing body and the bushing body. It may be formed to partially overlap with the pinhole.
  • the pin shaft is fitted to the eccentric shaft is formed in the rotary shaft, the friction avoiding groove is formed on the front end surface of the rotary shaft and the pin hole of the rotary shaft It may be formed so as not to overlap.
  • the bushing body may be provided with a rotary shaft receiving groove which is rotatably received the rotary shaft front end of the drive motor and the bushing surface is formed.
  • the area of the friction avoiding groove is preferably formed to be 20 to 70% of the area of the bushing surface of the rotation shaft receiving groove.
  • the friction avoiding groove is formed to have a depth of 1mm or less.
  • the friction avoiding grooves are 9-12 mm in diameter when the turning speed of the lathe is 3000-4000 rpm and the cutting speed of the tool is 125 m / min.
  • the friction avoiding groove may be formed by forging together with the bushing body.
  • the balance weight may be integrally formed on the bushing body.
  • sludge is generated by frictional contact by preventing the bushing surface having poor surface roughness from friction contacting the rotary shaft tip of the drive motor during lathe machining. There is an effect that can prevent contamination.
  • FIG. 1 is a schematic side cross-sectional view showing a conventional scroll compressor
  • Figure 2 is a perspective view showing the eccentric bush coupling structure of the scroll compressor according to the prior art
  • Figure 3 is a side cross-sectional view showing a coupling state of the eccentric bush shown in FIG.
  • Figure 4 is a perspective view showing the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention.
  • Figure 5 is a side cross-sectional view showing a coupling state of the eccentric bush coupling structure of the scroll compressor shown in FIG.
  • Figure 6 is a side cross-sectional view showing an eccentric bush coupling structure of the scroll compressor according to another embodiment of the present invention.
  • the eccentric bush of the scroll compressor according to an embodiment of the present invention, the bushing body for eccentrically coupling the turning scroll 600 to the rotating shaft 40 of the drive motor 400 (10) is provided.
  • the bush body 10 is one side is rotatably coupled to the swinging scroll 600 and the other side is pin-coupled to the eccentric shaft 45 to the rotation shaft 40 of the drive motor 400.
  • One side of the bush body 10 is formed with a rotation shaft receiving groove 11 for receiving the rotational end of the rotary shaft 40 of the drive motor 400 to be rotatable, the rotary shaft receiving groove 11 is the rotary shaft 40
  • the bushing surface 12 in frictional contact with the leading end surface 41 of the () is formed.
  • the bushing surface 12 is a surface in friction contact with the front end surface 41 of the rotating shaft 40 while the rotating shaft 40 is fitted in the rotating shaft receiving groove 11.
  • a pinhole 15 into which the eccentric shaft 45 of the rotating shaft 40 is fitted is formed at one side of the bushing surface 12 of the rotating shaft receiving groove 11.
  • the pinhole 15 is formed at a position eccentrically spaced apart from the rotation center line C of the rotation shaft 40 by a predetermined distance. Therefore, the eccentric bush can pivot about the pinhole 15 with respect to the rotation shaft 40 by a predetermined width. Since the swinging operation of the eccentric bush in the scroll compressor is a known technique, a detailed description thereof will be omitted.
  • a friction avoiding groove 30 is formed at a position adjacent to the pinhole 15.
  • the friction avoiding groove 30 is formed on the center of rotation (C) of the rotary shaft 40. That is, the friction avoiding groove 30 is formed in a circular shape and the center of the circle is formed on the rotation center line (C). Accordingly, when the eccentric bush is pivoted with respect to the rotation shaft 40, a part of the front end surface 41 of the rotation shaft 40 is not in frictional contact with the bushing surface 12.
  • the bushing surface 12 having the friction avoiding groove 30 is located at the center of rotation of the eccentric bush when turning, and has a poor surface roughness, and the friction avoiding groove 30 is formed in the portion to form the rotating shaft (
  • the front end surface 41 of the 40 and the bushing surface 12 of the bushing body 10 can be prevented from sludge generated by frictional contact.
  • the friction avoiding groove 30 is formed in the center portion of the bushing surface 12, the edge portion of the bushing surface 12, the friction avoiding groove 30 is not formed is not bad surface roughness even after the lathe processing Sludge hardly occurs even if the frictional contact with the front end surface 41 of the rotating shaft 40.
  • the friction avoiding groove 30 may be formed in a circular shape by lathe processing.
  • the diameter of the friction avoiding groove 30 may vary depending on the processing conditions during lathe processing. For example, when the rotation speed of the lathe is 3000 ⁇ 4000rpm and the feed speed of the tool, that is, the cutting speed is 125m / min, the diameter of the friction avoiding groove 30 is preferably formed about 10mm. In this case, the surface roughness of the lathe processing is relatively bad in the range of 10mm.
  • the friction avoiding groove 30 may be formed by forging. That is, during the forging process of the bushing body 10, the friction avoiding grooves 30 are processed together by forging instead of a separate lathe machining.
  • the area of the friction avoiding groove 30 is preferably formed to be 20-70% of the area of the bushing surface 12 of the rotary shaft receiving groove (11). That is, when the area of the friction avoiding groove 30 is S 1 and the area of the bushing surface 12 of the rotating shaft receiving groove 11 is S 0 , it is preferable to satisfy the following conditions.
  • the depth of the friction avoiding groove 30 is preferably formed to be 1mm or less. When the depth is deeper than 1mm, noise is more likely to occur due to the lifting of the contact surface.
  • the friction avoiding groove 30 and the pinhole ( 15 may be partially overlapped. That is, the friction avoiding groove 30 and the pinhole 15 are respectively processed in a circular shape, but the sum of the diameter of the friction avoiding groove 30 and the diameter of the pinhole 15 is the center point of the friction avoiding groove 30 and the pinhole. It is formed larger than the distance of the straight line which connects the center point of (15).
  • the friction avoiding groove 30 is formed in a circular shape on the center of rotation of the rotary shaft 40 at the same time larger than the bad surface roughness during lathe machining, and the diameter or position of the pinhole 15 is also specified in the design Since the friction avoiding groove 30 is formed to partially overlap the pinhole 15.
  • the friction avoiding groove 30 may be formed on the front end surface 41 of the rotary shaft (40).
  • a pin hole 42 into which the eccentric shaft 45 is fitted is formed in the front end surface 41 of the rotation shaft 40.
  • the eccentric shaft 45 is fitted together in the pinhole 15 formed in the bushing body 10 and the pinhole 42 formed in the rotating shaft 40.
  • the friction avoiding groove 30 is formed in a circular shape is formed so as not to overlap with the pinhole 42 of the rotating shaft 40. That is, while the circle forming the outer diameter of the friction avoiding groove 30 shown in FIG. 4 partially overlaps the pinhole 15 formed in the bushing surface 12, in another embodiment of FIG. 6, the friction avoiding groove 30 The circle forming the outer diameter of) is formed so as not to overlap the pinhole 42 formed in the rotation shaft 40. When the friction avoiding groove 30 is formed to overlap with the pinhole 42, the pin supporting force of the eccentric shaft 45 may be lowered by the outer wall of the pinhole 42 being worn away.
  • the friction avoiding grooves 30 and the pinholes 42 are formed to be spaced apart from each other at predetermined intervals so as not to overlap each other, and thus the height of the outer wall of the pinholes 42 is generally the same. Therefore, the pin holding force is uniformly distributed over the entire outer wall of the pinhole 42, so that the pin holding force is not lowered.
  • the area of the friction avoiding groove 30 should be formed to be 20% or more of the area of the bushing surface 12.
  • the rotary shaft 40 is machined into the rotary shaft receiving groove 11 of the bushing body 10 so as to fit within an allowable tolerance range of the bushing surface 12 of the bushing body 10.
  • the area may be regarded as the same as the area of the front end face 41 of the rotating shaft 40.
  • the balance weight 20 is integrally formed on the bush body 10.
  • the balance weight 20 is for balancing the eccentric rotation of the eccentric bush is formed to protrude in an arc shape on one side of the bush body (10).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The present invention relates to a structure for coupling an eccentric bush of a scroll compressor, the structure eccentrically coupling an orbiting scroll to a rotary shaft of a drive motor, having a bush body rotatably coupled to the orbiting scroll and simultaneously pin-coupled to the rotary shaft of the drive motor by an eccentric shaft, and having a friction-avoidance groove formed on the surface, which faces the front end surface of the rotary shaft, of the bush body such that the bush body does not make frictional contact with the front end surface of the rotary shaft, thereby preventing a bushing surface having bad surface roughness from contaminating the compressor by sludge generation caused by frictional contact during lathe machining.

Description

스크롤 압축기의 편심부쉬 결합구조Eccentric Bushing Structure of Scroll Compressor
본 발명은 스크롤 압축기의 편심부쉬 결합구조에 관한 것으로, 보다 상세하게는 전동식 스크롤 압축기에서 구동모터의 회전축에 선회스크롤을 편심되게 결합시켜 선회구동시키는 스크롤 압축기의 편심부쉬 결합구조에 관한 것이다. The present invention relates to an eccentric bush coupling structure of a scroll compressor, and more particularly, to an eccentric bush coupling structure of a scroll compressor for rotating by rotating the swing scroll eccentrically coupled to the rotation axis of the drive motor in the electric scroll compressor.
일반적으로, 자동차에는 실내의 냉난방을 위한 공조장치가 설치되어 있다. 이러한 공조장치는 냉방시스템의 구성으로 증발기로부터 인입된 저온 저압의 기상 냉매를 고온 고압의 기상 냉매로 압축시켜 응축기로 보내는 압축기를 포함하고 있다. In general, an automobile is provided with an air conditioning apparatus for heating and cooling the room. Such an air conditioning apparatus includes a compressor for compressing low-temperature, low-pressure gaseous refrigerant drawn from an evaporator into a high-temperature, high-pressure gaseous refrigerant as a constitution of a cooling system and sending it to a condenser.
차량용 냉각시스템에서 냉매를 압축시키는 역할을 하는 압축기에는 냉매를 압축하는 구성이 왕복운동을 하면서 압축을 수행하는 왕복식과 회전운동을 하면서 압축을 수행하는 회전식이 있다. 왕복식에는 구동원의 구동력을, 크랭크를 사용하여 복수개의 피스톤으로 전달하는 크랭크식, 사판이 설치된 회전축으로 전달하는 사판식, 워블 플레이트를 사용하는 워블 플레이트식이 있고, 회전식에는 회전하는 로터리축과 베인을 사용하는 베인로터리식, 선회 스크롤과 고정 스크롤을 사용하는 스크롤식이 있다. Compressors that serve to compress the refrigerant in a vehicle cooling system include a reciprocating type for compressing the refrigerant and a rotary type for performing the compression while rotating. In the reciprocating type, there is a crank type which transmits the driving force of the driving source to a plurality of pistons using a crank, a swash plate type which transmits to a rotating shaft provided with a swash plate, and a wobble plate type that uses a wobble plate. There are vane rotary type used, scroll type using turning scroll and fixed scroll.
도 1 내지 도 3을 참조하면, 스크롤 압축기(100)는 하우징(200)과, 하우징(200)의 내부에 구비되는 고정스크롤(300)과, 선회스크롤(600)을 구동시키는 구동모터(400)와, 구동모터(400)의 회전축(410)에 결합되는 편심부쉬(500)와, 편심부쉬(500)에 결합되어 고정스크롤(300)에 맞물려 공전하며 압축실을 형성하는 선회스크롤(600)을 포함한다. 1 to 3, the scroll compressor 100 includes a housing 200, a fixed scroll 300 provided inside the housing 200, and a driving motor 400 for driving the swing scroll 600. And, an eccentric bush 500 coupled to the rotation shaft 410 of the drive motor 400, and a swing scroll 600 coupled to the eccentric bush 500 to revolve with the fixed scroll 300 to form a compression chamber. Include.
선회스크롤(600)은 편심부쉬(500)에 의해 회전축(410)의 편심축(411)에 편심 결합되고, 편심부쉬(500)는 회전축(410)으로부터 회전력을 전달받아 선회스크롤(600)을 선회운동시킨다. 편심부쉬(500)에는 편심회전에 따른 균형을 맞춰주기 위한 밸런스웨이트(550)가 일체로 형성되어 있다. The swinging scroll 600 is eccentrically coupled to the eccentric shaft 411 of the rotating shaft 410 by the eccentric bush 500, the eccentric bush 500 receives the rotational force from the rotating shaft 410 to rotate the turning scroll 600 Exercise The eccentric bush 500 is integrally formed with a balance weight 550 to balance the eccentric rotation.
도 3에 도시된 바와 같이, 회전축(410)과 편심부쉬(500)가 회전할 때 회전축(410)의 선단면(412)과 편심부쉬(500)의 부싱면(510)이 서로 마찰접촉하게 되는데, 이 부싱면(510), 즉 습동면의 표면조도가 나빠 압축기 구동시 마찰에 의해 슬러지가 발생하여 압축공간을 오염시키는 문제점이 있었다. As shown in FIG. 3, when the rotating shaft 410 and the eccentric bush 500 rotate, the front end surface 412 of the rotating shaft 410 and the bushing surface 510 of the eccentric bush 500 are in friction contact with each other. In addition, the bushing surface 510, that is, the surface roughness of the sliding surface is bad, there is a problem that the sludge is generated by friction when driving the compressor to contaminate the compressed space.
즉, 편심부쉬(500)는 단조에 의해 전체적인 형상이 제조되고 치수 정밀도가 필요한 부분을 선반으로 추가 가공하게 되는데 이러한 선반에 의한 절삭공정에서 선반의 회전중심에 위치하는 중심부는 절삭속도가 느리므로 표면이 거칠어지게 되고, 이러한 거친 습동면을 가진 상태로 편심부쉬(500)의 가공을 마무리하게 되면 구동모터(400)의 회전축(410)과의 마찰시 표면이 깍여 나가게 되는 것이다. In other words, the eccentric bush 500 is manufactured by forging, the overall shape is manufactured and further processed to the part that requires the dimensional precision to the lathe. This becomes rough, and when the finish of the eccentric bushing 500 in the state having such a rough sliding surface is the surface is scraped off when friction with the rotating shaft 410 of the drive motor 400.
본 발명은 상기한 바와 같은 종래 스크롤 압축기의 편심부쉬 결합구조가 가지는 문제점들을 개선하기 위해 창출된 것으로, 선반가공시 표면조도가 나쁜 부싱면이 구동모터의 회전축 선단부와 마찰접촉하여 슬러지가 발생하는 것을 방지할 수 있는 스크롤 압축기의 편심부쉬 결합구조를 제공함에 그 목적이 있다.The present invention was created to improve the problems of the eccentric bush coupling structure of the conventional scroll compressor as described above. It is an object of the present invention to provide an eccentric bush coupling structure of a scroll compressor that can be prevented.
상기한 바와 같은 목적을 달성하기 위하여 본 발명에 의한 스크롤 압축기의 편심부쉬 결합구조는, 선회스크롤에 회전가능하게 결합됨과 동시에 상기 구동모터의 회전축에 편심축으로 핀결합되는 부쉬몸체를 구비하고, 상기 부쉬몸체에 상기 회전축의 선단면과 마주보는 부싱면이 구비되며, 상기 부쉬몸체의 부싱면이나 상기 회전축의 선단면 중 적어도 어느 하나에 상기 부쉬몸체와 상기 회전축의 비접촉부분을 형성하는 마찰회피홈이 형성된 것을 특징으로 한다. In order to achieve the object as described above, the eccentric bush coupling structure of the scroll compressor according to the present invention includes a bushing body which is rotatably coupled to the swinging scroll and pinned eccentrically to the rotational axis of the drive motor. The bushing body is provided with a bushing surface facing the front end surface of the rotating shaft, and the friction avoiding groove forming the non-contact portion of the bushing body and the rotating shaft on at least one of the bushing surface of the bushing body or the front end surface of the rotating shaft. Characterized in that formed.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 마찰회피홈은 원형으로 형성될 수 있다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, the friction avoiding groove may be formed in a circular shape.
바람직하게는, 상기 마찰회피홈은 원의 중심이 상기 회전축의 회전중심선상에 형성된다. Preferably, the friction avoiding groove is the center of the circle is formed on the center of rotation of the rotation axis.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 부쉬몸체에 상기 편심축이 끼워지는 핀홀이 형성되고, 상기 마찰회피홈은 상기 부쉬몸체의 부싱면에 형성되되 상기 부쉬몸체의 핀홀과 일부 겹쳐지게 형성될 수 있다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, a pinhole for fitting the eccentric shaft is formed in the bushing body, and the friction avoiding groove is formed on the bushing surface of the bushing body and the bushing body. It may be formed to partially overlap with the pinhole.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 회전축에 상기 편심축이 끼워지는 핀홀이 형성되고, 상기 마찰회피홈은 상기 회전축의 선단면에 형성되되 상기 회전축의 핀홀과 겹쳐지지 않게 형성될 수 있다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, the pin shaft is fitted to the eccentric shaft is formed in the rotary shaft, the friction avoiding groove is formed on the front end surface of the rotary shaft and the pin hole of the rotary shaft It may be formed so as not to overlap.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 부쉬몸체는 상기 구동모터의 회전축 선단부를 선회가능하게 수용하고 상기 부싱면이 형성되는 회전축수용홈을 구비할 수 있다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, the bushing body may be provided with a rotary shaft receiving groove which is rotatably received the rotary shaft front end of the drive motor and the bushing surface is formed.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 마찰회피홈의 면적은 상기 회전축수용홈의 부싱면의 면적의 20~70%가 되게 형성되는 것이 바람직하다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, the area of the friction avoiding groove is preferably formed to be 20 to 70% of the area of the bushing surface of the rotation shaft receiving groove.
더욱 바람직하게는, 상기 마찰회피홈은 1mm 이하의 깊이를 가지게 형성된다. More preferably, the friction avoiding groove is formed to have a depth of 1mm or less.
바람직하게는, 상기 마찰회피홈은 선반가공시 선반의 회전속도가 3000~4000rpm이고 공구의 절삭속도가 125m/min일 때 그 직경이 9~12mm로 형성된다. Preferably, the friction avoiding grooves are 9-12 mm in diameter when the turning speed of the lathe is 3000-4000 rpm and the cutting speed of the tool is 125 m / min.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 마찰회피홈은 상기 부쉬몸체와 함께 단조에 의해 형성되는 것도 가능하다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, the friction avoiding groove may be formed by forging together with the bushing body.
본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조에 있어서, 상기 부쉬몸체에 밸런스웨이트가 일체로 형성될 수 있다. In the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention, the balance weight may be integrally formed on the bushing body.
[유리한 효과][Favorable effect]
이상에서 설명한 바와 같이 본 발명에 따른 스크롤 압축기의 편심부쉬 결합구조에 의하면, 선반가공시 표면조도가 나쁜 부싱면이 구동모터의 회전축 선단부와 마찰접촉되지 않게 함으로써 마찰접촉에 의해 슬러지가 발생하여 압축기를 오염시키는 것을 방지할 수 있는 효과가 있다. As described above, according to the eccentric bush coupling structure of the scroll compressor according to the present invention, sludge is generated by frictional contact by preventing the bushing surface having poor surface roughness from friction contacting the rotary shaft tip of the drive motor during lathe machining. There is an effect that can prevent contamination.
도 1은 통상의 스크롤 압축기를 나타낸 개략적 측단면도,1 is a schematic side cross-sectional view showing a conventional scroll compressor;
도 2는 종래의 기술에 따른 스크롤 압축기의 편심부쉬 결합구조를 나타낸 사시도,Figure 2 is a perspective view showing the eccentric bush coupling structure of the scroll compressor according to the prior art,
도 3은 도 2에 도시된 편심부쉬의 결합상태를 나타낸 측단면도,Figure 3 is a side cross-sectional view showing a coupling state of the eccentric bush shown in FIG.
도 4는 본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조를 나타낸 사시도,Figure 4 is a perspective view showing the eccentric bush coupling structure of the scroll compressor according to an embodiment of the present invention,
도 5는 도 4에 도시된 스크롤 압축기의 편심부쉬 결합구조의 결합상태를 나타낸 측단면도,Figure 5 is a side cross-sectional view showing a coupling state of the eccentric bush coupling structure of the scroll compressor shown in FIG.
도 6은 본 발명의 다른 실시예에 따른 스크롤 압축기의 편심부쉬 결합구조를 나타낸 측단면도이다.Figure 6 is a side cross-sectional view showing an eccentric bush coupling structure of the scroll compressor according to another embodiment of the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1과 도 4 및 도 5를 참조하면, 본 발명의 일 실시예에 따른 스크롤 압축기의 편심부쉬는, 구동모터(400)의 회전축(40)에 선회스크롤(600)을 편심되게 결합시키는 부쉬몸체(10)를 구비하고 있다.1, 4 and 5, the eccentric bush of the scroll compressor according to an embodiment of the present invention, the bushing body for eccentrically coupling the turning scroll 600 to the rotating shaft 40 of the drive motor 400 (10) is provided.
상기 부쉬몸체(10)는 일측이 선회스크롤(600)에 회전가능하게 결합됨과 동시에 타측이 구동모터(400)의 회전축(40)에 편심축(45)으로 핀결합된다. The bush body 10 is one side is rotatably coupled to the swinging scroll 600 and the other side is pin-coupled to the eccentric shaft 45 to the rotation shaft 40 of the drive motor 400.
상기 부쉬몸체(10)의 일측에는 상기 구동모터(400)의 회전축(40) 선단부를 선회가능하게 수용하는 회전축수용홈(11)이 형성되어 있고, 상기 회전축수용홈(11)에는 상기 회전축(40)의 선단면(41)과 마찰접촉하는 부싱면(12)이 형성되어 있다. 상기 부싱면(12)은 상기 회전축(40)이 상기 회전축수용홈(11)에 끼워진 상태에서 상기 회전축(40)의 선단면(41)과 마주보면서 마찰접촉하는 면이다. One side of the bush body 10 is formed with a rotation shaft receiving groove 11 for receiving the rotational end of the rotary shaft 40 of the drive motor 400 to be rotatable, the rotary shaft receiving groove 11 is the rotary shaft 40 The bushing surface 12 in frictional contact with the leading end surface 41 of the () is formed. The bushing surface 12 is a surface in friction contact with the front end surface 41 of the rotating shaft 40 while the rotating shaft 40 is fitted in the rotating shaft receiving groove 11.
상기 회전축수용홈(11)의 부싱면(12) 일측에 상기 회전축(40)의 편심축(45)이 끼워지는 핀홀(15)이 형성되어 있다. 상기 핀홀(15)은 상기 회전축(40)의 회전중심선(C)으로부터 소정거리만큼 이격되어 편심된 위치에 형성되어 있다. 따라서, 편심부쉬가 상기 핀홀(15)을 중심으로 상기 회전축(40)에 대하여 소정의 폭만큼 선회할 수 있게 된다. 스크롤 압축기에서 편심부쉬의 선회동작은 공지된 기술이므로 이에 대한 더 이상의 상세한 설명은 생략하기로 한다. A pinhole 15 into which the eccentric shaft 45 of the rotating shaft 40 is fitted is formed at one side of the bushing surface 12 of the rotating shaft receiving groove 11. The pinhole 15 is formed at a position eccentrically spaced apart from the rotation center line C of the rotation shaft 40 by a predetermined distance. Therefore, the eccentric bush can pivot about the pinhole 15 with respect to the rotation shaft 40 by a predetermined width. Since the swinging operation of the eccentric bush in the scroll compressor is a known technique, a detailed description thereof will be omitted.
상기 회전축수용홈(11)의 부싱면(12)에는 핀홀(15)과 인접한 위치에 마찰회피홈(30)이 형성되어 있다. In the bushing surface 12 of the rotation shaft receiving groove 11, a friction avoiding groove 30 is formed at a position adjacent to the pinhole 15.
상기 마찰회피홈(30)은 상기 회전축(40)의 회전중심선(C)상에 형성된다. 즉, 상기 마찰회피홈(30)은 원형으로 형성되고 원의 중심이 회전중심선(C)상에 위치하게 형성되어 있다. 따라서, 상기 회전축(40)에 대하여 편심부쉬가 선회할 때 상기 회전축(40)의 선단면(41)의 일부가 부싱면(12)과 마찰접촉되지 않게 된다. 상기 마찰회피홈(30)이 형성된 부싱면(12)은 편심부쉬의 선반가공시 회전중심에 위치하여 표면조도가 나쁜 부분으로, 이 부분에 마찰회피홈(30)이 함입되어 형성됨으로써 상기 회전축(40)의 선단면(41)과 부쉬몸체(10)의 부싱면(12)이 마찰접촉하여 슬러지가 발생하는 것을 방지할 수 있게 된다. The friction avoiding groove 30 is formed on the center of rotation (C) of the rotary shaft 40. That is, the friction avoiding groove 30 is formed in a circular shape and the center of the circle is formed on the rotation center line (C). Accordingly, when the eccentric bush is pivoted with respect to the rotation shaft 40, a part of the front end surface 41 of the rotation shaft 40 is not in frictional contact with the bushing surface 12. The bushing surface 12 having the friction avoiding groove 30 is located at the center of rotation of the eccentric bush when turning, and has a poor surface roughness, and the friction avoiding groove 30 is formed in the portion to form the rotating shaft ( The front end surface 41 of the 40 and the bushing surface 12 of the bushing body 10 can be prevented from sludge generated by frictional contact.
즉, 상기 마찰회피홈(30)에서 회전축(40)의 선단면(41)과 부쉬몸체(10)의 부싱면(12)이 마찰접촉되지 않게 함으로써, 상기 회전축(40)과 편심부쉬가 회전하더라도 회전축(40)의 선단면(41)과 부쉬몸체(10)의 부싱면(12)이 마찰접촉에 의해 슬러지가 발생하는 현상을 사전에 차단할 수 있게 되는 것이다. That is, even if the front end surface 41 of the rotary shaft 40 and the bushing surface 12 of the bushing body 10 in the friction avoiding groove 30 does not frictionally contact, the rotary shaft 40 and the eccentric bush are rotated. The front end face 41 of the rotating shaft 40 and the bushing face 12 of the bushing body 10 can prevent the sludge from occurring in advance due to frictional contact.
상기 마찰회피홈(30)은 상기 부싱면(12)의 중앙부에 형성되는데, 마찰회피홈(30)이 형성되지 않은 부싱면(12)의 가장자리부분은 선반가공을 거친 후에도 표면조도가 나쁘지 않아 상기 회전축(40)의 선단면(41)과 마찰접촉하더라도 슬러지가 거의 발생하지 않게 된다. The friction avoiding groove 30 is formed in the center portion of the bushing surface 12, the edge portion of the bushing surface 12, the friction avoiding groove 30 is not formed is not bad surface roughness even after the lathe processing Sludge hardly occurs even if the frictional contact with the front end surface 41 of the rotating shaft 40.
상기 마찰회피홈(30)은 선반가공에 의해 원형으로 형성될 수 있다. 이때 상기 마찰회피홈(30)의 직경은 선반가공시의 가공조건에 따라 달라질 수 있다. 가령, 선반의 회전속도가 3000~4000rpm이고 공구의 이송속도, 즉 절삭속도는 125m/min일 때 상기 마찰회피홈(30)의 직경은 대략 10mm 정도로 형성하는 것이 바람직하다. 이 경우 10mm 내의 범위에서 선반가공의 표면조도가 비교적 나쁘게 나타난다. The friction avoiding groove 30 may be formed in a circular shape by lathe processing. At this time, the diameter of the friction avoiding groove 30 may vary depending on the processing conditions during lathe processing. For example, when the rotation speed of the lathe is 3000 ~ 4000rpm and the feed speed of the tool, that is, the cutting speed is 125m / min, the diameter of the friction avoiding groove 30 is preferably formed about 10mm. In this case, the surface roughness of the lathe processing is relatively bad in the range of 10mm.
한편, 상기 마찰회피홈(30)은 단조가공에 의해 형성될 수 있다. 즉, 상기 부쉬몸체(10)의 단조가공시 별도의 선반가공에 의하지 않고 단조에 의해 마찰회피홈(30)을 함께 가공한다. On the other hand, the friction avoiding groove 30 may be formed by forging. That is, during the forging process of the bushing body 10, the friction avoiding grooves 30 are processed together by forging instead of a separate lathe machining.
여기서, 상기 마찰회피홈(30)의 면적은 상기 회전축수용홈(11)의 부싱면(12)의 면적의 20-70%가 되게 형성하는 것이 바람직하다. 즉, 상기 마찰회피홈(30)의 면적을 S1이라 하고 상기 회전축수용홈(11)의 부싱면(12)의 면적을 S0라 할 때, 아래의 조건을 만족시키는 것이 바람직하다.Here, the area of the friction avoiding groove 30 is preferably formed to be 20-70% of the area of the bushing surface 12 of the rotary shaft receiving groove (11). That is, when the area of the friction avoiding groove 30 is S 1 and the area of the bushing surface 12 of the rotating shaft receiving groove 11 is S 0 , it is preferable to satisfy the following conditions.
Figure PCTKR2016000806-appb-I000001
Figure PCTKR2016000806-appb-I000001
상기 마찰회피홈(30)의 면적(S1)이 상기 부싱면(12)의 면적(S0) 대비 20%보다 작아 지나치게 작게 형성되는 경우 슬러지가 발생할 가능성이 크고, 70%를 초과하여 지나치게 크게 형성된 경우에는 접촉면의 들뜸현상으로 노이즈가 발생할 가능성이 크게 된다. When the area S 1 of the friction avoiding groove 30 is formed to be smaller than 20% of the area S 0 of the bushing surface 12, sludge is likely to occur, and excessively larger than 70%. If formed, noise is more likely to occur due to the lifting of the contact surface.
또한, 마찰회피홈(30)의 깊이는 1mm 이하로 형성하는 것이 바람직하다, 깊이가 1mm 보다 깊은 경우에는 접촉면의 들뜸현상으로 노이즈가 발생할 가능성이 크게 된다. In addition, the depth of the friction avoiding groove 30 is preferably formed to be 1mm or less. When the depth is deeper than 1mm, noise is more likely to occur due to the lifting of the contact surface.
도 4에 도시된 바와 같이, 상기 마찰회피홈(30)이 상기 핀홀(15)과 함께 회전축수용홈(11)의 부싱면(12)에 형성되는 경우, 상기 마찰회피홈(30)과 핀홀(15)은 일부 겹쳐지게 형성될 수 있다. 즉, 상기 마찰회피홈(30)과 핀홀(15)은 각각 원형으로 가공되되 상기 마찰회피홈(30)의 직경과 핀홀(15)의 직경의 합이 상기 마찰회피홈(30)의 중심점과 핀홀(15)의 중심점을 연결하는 직선의 거리보다 크게 형성되어 있다. As shown in FIG. 4, when the friction avoiding groove 30 is formed on the bushing surface 12 of the rotation shaft receiving groove 11 together with the pin hole 15, the friction avoiding groove 30 and the pinhole ( 15 may be partially overlapped. That is, the friction avoiding groove 30 and the pinhole 15 are respectively processed in a circular shape, but the sum of the diameter of the friction avoiding groove 30 and the diameter of the pinhole 15 is the center point of the friction avoiding groove 30 and the pinhole. It is formed larger than the distance of the straight line which connects the center point of (15).
상기 마찰회피홈(30)은 상기 회전축(40)의 회전중심선상에 원형으로 형성됨과 동시에 선반가공시 표면조도가 나쁜 부분보다 크게 형성되어야 하고 상기 핀홀(15)의 직경이나 위치도 설계상 특정되어 형성되므로 상기 마찰회피홈(30)이 상기 핀홀(15)과 일부 겹쳐지게 형성되는 것이다. The friction avoiding groove 30 is formed in a circular shape on the center of rotation of the rotary shaft 40 at the same time larger than the bad surface roughness during lathe machining, and the diameter or position of the pinhole 15 is also specified in the design Since the friction avoiding groove 30 is formed to partially overlap the pinhole 15.
한편, 도 6에 도시된 바와 같이, 상기 마찰회피홈(30)은 상기 회전축(40)의 선단면(41)에 형성될 수 있다. 상기 회전축(40)의 선단면(41)에는 상기 편심축(45)이 끼워지는 핀홀(42)이 형성되어 있다. 상기 편심축(45)은 상기 부쉬몸체(10)에 형성된 핀홀(15)과 상기 회전축(40)에 형성된 핀홀(42)에 함께 끼워진다. On the other hand, as shown in Figure 6, the friction avoiding groove 30 may be formed on the front end surface 41 of the rotary shaft (40). A pin hole 42 into which the eccentric shaft 45 is fitted is formed in the front end surface 41 of the rotation shaft 40. The eccentric shaft 45 is fitted together in the pinhole 15 formed in the bushing body 10 and the pinhole 42 formed in the rotating shaft 40.
상기 마찰회피홈(30)은 원형으로 형성되되 상기 회전축(40)의 핀홀(42)과 겹쳐지지 않게 형성되어 있다. 즉, 도 4에 도시된 마찰회피홈(30)의 외경을 이루는 원이 부싱면(12)에 형성된 핀홀(15)과 일부 겹쳐지게 형성되는 반면, 도 6의 다른 실시예에서는 마찰회피홈(30)의 외경을 이루는 원이 회전축(40)에 형성된 핀홀(42)과 겹쳐지지 않게 형성된 것이다. 상기 마찰회피홈(30)이 상기 핀홀(42)과 겹쳐지게 형성될 경우 핀홀(42)의 외벽이 깍여 마모됨으로써 편심축(45)의 핀 지지력이 저하될 수 있다. The friction avoiding groove 30 is formed in a circular shape is formed so as not to overlap with the pinhole 42 of the rotating shaft 40. That is, while the circle forming the outer diameter of the friction avoiding groove 30 shown in FIG. 4 partially overlaps the pinhole 15 formed in the bushing surface 12, in another embodiment of FIG. 6, the friction avoiding groove 30 The circle forming the outer diameter of) is formed so as not to overlap the pinhole 42 formed in the rotation shaft 40. When the friction avoiding groove 30 is formed to overlap with the pinhole 42, the pin supporting force of the eccentric shaft 45 may be lowered by the outer wall of the pinhole 42 being worn away.
도 6에 도시된 바와 같이 상기 마찰회피홈(30)과 핀홀(42)이 소정간격을 두고 이격되어 서로 겹쳐지지 않게 형성됨으로써 핀홀(42)의 외벽 높이가 전체적으로 동일하게 형성된다. 그로 인해 핀홀(42)의 외벽 전체에 핀 지지력이 균일하게 분포하게 되어 핀 지지력이 저하되지 않게 되는 것이다. As shown in FIG. 6, the friction avoiding grooves 30 and the pinholes 42 are formed to be spaced apart from each other at predetermined intervals so as not to overlap each other, and thus the height of the outer wall of the pinholes 42 is generally the same. Therefore, the pin holding force is uniformly distributed over the entire outer wall of the pinhole 42, so that the pin holding force is not lowered.
이 경우에도 상기 마찰회피홈(30)의 면적은 부싱면(12)의 면적의 20% 이상으로 형성해야 한다. 여기서, 도 5에 도시된 바와 같이 상기 부쉬몸체(10)의 회전축수용홈(11)에 회전축(40)이 허용공차범위 내에서 끼워지도록 가공되므로 상기 부쉬몸체(10)의 부싱면(12)의 면적은 회전축(40)의 선단면(41) 면적과 동일한 것으로 간주하여도 무방하다. Even in this case, the area of the friction avoiding groove 30 should be formed to be 20% or more of the area of the bushing surface 12. Here, as shown in FIG. 5, the rotary shaft 40 is machined into the rotary shaft receiving groove 11 of the bushing body 10 so as to fit within an allowable tolerance range of the bushing surface 12 of the bushing body 10. The area may be regarded as the same as the area of the front end face 41 of the rotating shaft 40.
상기 부쉬몸체(10)에 밸런스웨이트(20)가 일체로 형성되어 있다. 상기 밸런스웨이트(20)는 편심부쉬의 편심회전에 따른 균형을 맞추기 위한 것으로 부쉬몸체(10)의 일측에 원호형상으로 돌출되어 형성되어 있다. The balance weight 20 is integrally formed on the bush body 10. The balance weight 20 is for balancing the eccentric rotation of the eccentric bush is formed to protrude in an arc shape on one side of the bush body (10).
이상 본 발명을 구체적인 실시예를 통하여 상세히 설명하였으나, 이는 본 발명을 구체적으로 설명하기 위한 것으로, 본 발명은 이에 한정되지 않으며, 본 발명은 본 발명의 기술적 사상 내에서 당해 분야의 통상의 지식을 가진 자에 의해 그 변형이나 개량이 가능함은 명백하다. Although the present invention has been described in detail through specific examples, it is intended to specifically describe the present invention, and the present invention is not limited thereto, and the present invention has ordinary knowledge in the art within the technical spirit of the present invention. It is obvious that the modification or improvement is possible by the ruler.
본 발명의 단순한 변형 내지 변경은 모두 본 발명의 영역에 속하는 것으로 본 발명의 구체적인 보호 범위는 첨부된 특허청구범위에 의하여 명확해질 것이다.All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

Claims (11)

  1. 구동모터(400)의 회전축(40)에 선회스크롤(600)을 편심되게 결합시키는 스크롤 압축기의 편심부쉬 결합구조에 있어서,In the eccentric bush coupling structure of the scroll compressor for eccentrically coupling the swinging scroll 600 to the rotating shaft 40 of the drive motor 400,
    상기 선회스크롤(600)에 회전가능하게 결합됨과 동시에 상기 구동모터(400)의 회전축(40)에 편심축(45)으로 핀결합되는 부쉬몸체(10)를 구비하고, 상기 부쉬몸체(10)에 상기 회전축(40)의 선단면(41)과 마주보는 부싱면(12)이 구비되며, A bush body 10 which is rotatably coupled to the pivoting scroll 600 and pinned to an eccentric shaft 45 on the rotation shaft 40 of the drive motor 400, and on the bush body 10. A bushing surface 12 facing the front end surface 41 of the rotary shaft 40 is provided,
    상기 부쉬몸체(10)의 부싱면(12)이나 상기 회전축(40)의 선단면(41) 중 적어도 어느 하나에 상기 부쉬몸체(10)와 상기 회전축(40)의 비접촉부분을 형성하는 마찰회피홈(30)이 형성된 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.A friction avoiding groove forming a non-contact portion of the bushing body 10 and the rotating shaft 40 on at least one of the bushing surface 12 of the bushing body 10 or the front end surface 41 of the rotating shaft 40. Eccentric bush coupling structure of the scroll compressor, characterized in that 30 is formed.
  2. 제1항에 있어서, 상기 마찰회피홈(30)은,According to claim 1, The friction avoiding groove 30,
    원형으로 형성된 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that formed in a circular shape.
  3. 제2항에 있어서, 상기 마찰회피홈(30)은,The method of claim 2, wherein the friction avoiding groove 30,
    원의 중심이 상기 회전축(40)의 회전중심선상에 형성된 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that the center of the circle is formed on the center of rotation of the rotary shaft (40).
  4. 제3항에 있어서, The method of claim 3,
    상기 부쉬몸체(10)에 상기 편심축(45)이 끼워지는 핀홀(15)이 형성되고, The bushing body 10 is formed with a pin hole 15 is fitted with the eccentric shaft 45,
    상기 마찰회피홈(30)은 상기 부쉬몸체(10)의 부싱면(12)에 형성되되 상기 부쉬몸체(10)의 핀홀(15)과 일부 겹쳐지게 형성된 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.The friction avoiding groove 30 is formed in the bushing surface 12 of the bushing body 10, but the eccentric bush coupling structure of the scroll compressor, characterized in that formed in part overlap with the pinhole 15 of the bushing body 10 .
  5. 제3항에 있어서, The method of claim 3,
    상기 회전축(40)에 상기 편심축(45)이 끼워지는 핀홀(42)이 형성되고, A pin hole 42 into which the eccentric shaft 45 is fitted is formed in the rotation shaft 40,
    상기 마찰회피홈(30)은 상기 회전축(40)의 선단면(41)에 형성되되 상기 회전축(40)의 핀홀(42)과 겹쳐지지 않게 형성된 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.The friction avoiding groove 30 is formed on the front end surface 41 of the rotary shaft 40, the eccentric bush coupling structure of the scroll compressor, characterized in that it is formed so as not to overlap with the pinhole (42) of the rotary shaft (40).
  6. 제1항에 있어서, 상기 부쉬몸체(10)는,The method of claim 1, wherein the bushing body 10,
    상기 구동모터(400)의 회전축(40) 선단부를 선회가능하게 수용하고 상기 부싱면(12)이 형성되는 회전축수용홈(11)을 구비한 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that it comprises a rotary shaft receiving groove (11) in which the rotary shaft (40) of the drive motor 400 is rotatably received and the bushing surface (12) is formed.
  7. 제6항에 있어서, The method of claim 6,
    상기 마찰회피홈(30)의 면적(S1)은, The area S 1 of the friction avoiding groove 30 is,
    상기 회전축수용홈(11)의 부싱면(12)의 면적(S0)에 대하여
    Figure PCTKR2016000806-appb-I000002
    의 조건을 만족하는 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.    With respect to the area S 0 of the bushing surface 12 of the rotation shaft receiving groove 11
    Figure PCTKR2016000806-appb-I000002
    Eccentric bush coupling structure of the scroll compressor, characterized by satisfying the conditions of.
  8. 제7항에 있어서, 상기 마찰회피홈(30)은,The method of claim 7, wherein the friction avoiding groove 30,
    1mm 이하의 깊이를 가지는 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that having a depth of less than 1mm.
  9. 제2항에 있어서, 상기 마찰회피홈(30)은,The method of claim 2, wherein the friction avoiding groove 30,
    선반가공시 선반의 회전속도가 3000~4000rpm이고 공구의 절삭속도가 125m/min일 때 그 직경이 9~12mm인 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that the diameter of 9 ~ 12mm when the turning speed of the lathe is 3000 ~ 4000rpm and the cutting speed of the tool is 125m / min during lathe machining.
  10. 제1항에 있어서, 상기 마찰회피홈(30)은, According to claim 1, The friction avoiding groove 30,
    상기 부쉬몸체(10)와 함께 단조에 의해 형성되는 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that formed by forging with the bush body (10).
  11. 제1항에 있어서, The method of claim 1,
    상기 부쉬몸체(10)에 밸런스웨이트(20)가 일체로 형성된 것을 특징으로 하는 스크롤 압축기의 편심부쉬 결합구조.Eccentric bush coupling structure of the scroll compressor, characterized in that the balance weight 20 is integrally formed on the bushing body (10).
PCT/KR2016/000806 2015-03-04 2016-01-26 Structure for coupling eccentric bush of scroll compressor WO2016140437A1 (en)

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CN201680000962.4A CN106133323B (en) 2015-03-04 2016-01-26 The eccentric bush integrated structure of screw compressor
US15/506,020 US10309403B2 (en) 2015-03-04 2016-01-26 Eccentric bush assembly structure of scroll compressor
US16/402,636 US11098717B2 (en) 2015-03-04 2019-05-03 Eccentric bush assembly structure of scroll compressor

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KR10-2015-0030134 2015-03-04
KR20150030134 2015-03-04
KR1020150184487A KR102291952B1 (en) 2015-03-04 2015-12-23 A eccentric bush assembling structure of a scroll compressor
KR10-2015-0184487 2015-12-23

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US16/402,636 Continuation US11098717B2 (en) 2015-03-04 2019-05-03 Eccentric bush assembly structure of scroll compressor

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050060346A (en) * 2003-12-16 2005-06-22 엘지전자 주식회사 The stopper device of eccentric bush for scroll compressor
KR100558812B1 (en) * 2003-12-16 2006-03-10 엘지전자 주식회사 Scroll compressor
JP2010174796A (en) * 2009-01-30 2010-08-12 Mitsubishi Heavy Ind Ltd Scroll compressor
KR20140095702A (en) * 2013-01-25 2014-08-04 한라비스테온공조 주식회사 Scroll compressor
KR20140109826A (en) * 2013-03-06 2014-09-16 가부시키가이샤 도요다 지도숏키 Scroll compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050060346A (en) * 2003-12-16 2005-06-22 엘지전자 주식회사 The stopper device of eccentric bush for scroll compressor
KR100558812B1 (en) * 2003-12-16 2006-03-10 엘지전자 주식회사 Scroll compressor
JP2010174796A (en) * 2009-01-30 2010-08-12 Mitsubishi Heavy Ind Ltd Scroll compressor
KR20140095702A (en) * 2013-01-25 2014-08-04 한라비스테온공조 주식회사 Scroll compressor
KR20140109826A (en) * 2013-03-06 2014-09-16 가부시키가이샤 도요다 지도숏키 Scroll compressor

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