KR100556966B1 - Apparatus for fixed the axis of rotation in a rotary compressor - Google Patents

Apparatus for fixed the axis of rotation in a rotary compressor Download PDF

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Publication number
KR100556966B1
KR100556966B1 KR1020030094007A KR20030094007A KR100556966B1 KR 100556966 B1 KR100556966 B1 KR 100556966B1 KR 1020030094007 A KR1020030094007 A KR 1020030094007A KR 20030094007 A KR20030094007 A KR 20030094007A KR 100556966 B1 KR100556966 B1 KR 100556966B1
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South Korea
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cylinder
rotating shaft
rotary compressor
screw portion
lower bearing
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KR1020030094007A
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Korean (ko)
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KR20050062986A (en
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홍성재
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엘지전자 주식회사
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Publication of KR20050062986A publication Critical patent/KR20050062986A/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
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/14—Provisions for readily assembling or disassembling
    • 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
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

본 발명은 회전식 압축기의 회전축 고정장치에 관한 것으로서, 일측에 편심부가 형성된 회전축과, 상기 편심부를 내부에 수용하며 회전축의 회전에 의해 압축공간을 형성하는 실린더와, 상기 실린더의 상측에 복개되어 압축공간을 형성함과 동시에 상기 회전축을 지지하는 상부베어링과, 상기 실린더의 하측에 복개되어 압축공간을 형성함과 동시에 상기 회전축을 지지하는 하부베어링과, 상기 실린더의 하측에 상기 하부베어링을 장착 시, 나사결합 할 수 있도록 각각의 접촉면에 나사체결부재가 구비되어 구성됨으로써, 조립공정이 단순화되고 작업공수가 줄어 제조원가가 절감될 수 있도록 한 것이다.The present invention relates to a rotating shaft fixing apparatus of a rotary compressor, comprising a rotating shaft having an eccentric portion formed on one side, a cylinder accommodating the eccentric portion therein and forming a compression space by rotation of the rotating shaft, and a compression space being covered on the upper side of the cylinder. The upper bearing to support the rotating shaft at the same time, and the lower bearing to be supported on the lower side of the cylinder to form a compression space and to support the rotating shaft, and to mount the lower bearing to the lower side of the cylinder. The screw fastening member is provided on each contact surface so as to be coupled, thereby simplifying the assembly process and reducing the labor cost, thereby reducing manufacturing costs.

Description

회전식 압축기의 회전축 고정장치{APPARATUS FOR FIXED THE AXIS OF ROTATION IN A ROTARY COMPRESSOR}Rotary shaft fixing device of rotary compressor {APPARATUS FOR FIXED THE AXIS OF ROTATION IN A ROTARY COMPRESSOR}

도 1은 일반적인 회전식 압축기의 내부 구조를 도시한 종단면도이고, 1 is a longitudinal sectional view showing the internal structure of a general rotary compressor,

도 2는 도 1에 도시된 회전축 고정장치를 도시한 사시도,Figure 2 is a perspective view of the rotating shaft fixing device shown in FIG.

도 3은 본 발명의 일 실시예인 회전축 고정장치가 장착된 회전식 압축기의내부 구조를 도시한 종단면도,3 is a longitudinal sectional view showing an internal structure of a rotary compressor equipped with a rotating shaft fixing device according to an embodiment of the present invention;

도 4는 도 3에 도시된 회전축 고정장치를 도시한 사시도.Figure 4 is a perspective view of the rotating shaft fixing device shown in FIG.

**도면의 주요 부분에 대한 부호의 설명**** Description of the symbols for the main parts of the drawings **

131 : 회전축 132 : 상부베어링 131: rotating shaft 132: upper bearing

133 : 하부베어링 140 ; 실린더 133: lower bearing 140; cylinder

141 : 나사체결부재 141a : 수나사부 141: screw fastening member 141a: male thread portion

141b : 암나사부 141b: female thread

본 발명은 회전식 압축기의 회전축 고정장치에 관한 것으로서, 보다 상세하게는 실린더와 하부베어링에 각각 나사체결부재를 형성하여 작업 공수를 줄일 수 있도록 하는 회전식 압축기의 회전축 고정장치를 제공함에 있다.The present invention relates to a rotating shaft fixing device of a rotary compressor, and more particularly to providing a rotating shaft fixing device of the rotary compressor to form a screwing member in the cylinder and the lower bearing to reduce the labor.

일반적으로 회전식 압축기는 원심력에 의하지 않고 실린더 내의 회전자를 회전시켜 냉매를 압축시키는 것으로, 크랭크축의 하부에 장착된 편심된 롤러의 회전에 연동하여 실린더의 내주면을 따라 공전 및 자전하는 운동에 의해 냉매를 흡입, 압축하는 기기이다.In general, a rotary compressor compresses the refrigerant by rotating the rotor in the cylinder without centrifugal force. The rotary compressor rotates and rotates along the inner circumferential surface of the cylinder in conjunction with the rotation of the eccentric roller mounted on the lower part of the crankshaft. It is a device for suction and compression.

도 1은 종래의 이러한 회전식 압축기의 단면도로서, 본 도면에 도시한 바와 같이 내부에 밀폐된 수용공간을 형성하는 밀폐용기(10)와, 상기 밀폐용기(10)의 내부에 장착되는 전동기구부(20)와, 상기 전동기구부(20)에 연결되어 구동되며 냉매를 압축하도록 상기 밀폐용기(10)의 내부에 장착되는 압축기구부(30)로 구성된다.1 is a cross-sectional view of a conventional rotary compressor, as shown in the drawing, a hermetically sealed container 10 forming a hermetically sealed space therein, and an electric mechanism part 20 mounted inside the hermetically sealed container 10. And a compressor mechanism 30 which is connected to the power mechanism 20 and driven and mounted inside the sealed container 10 to compress the refrigerant.

밀폐용기(10)는 상측 및 하측이 개방된 개구부가 형성되고 측면 하부에 흡입구(1)가 형성된 본체(11)와, 중앙부에 토출구(4)가 형성되어 상기 밀폐용기(10)의 상측 개구부에 일정 부분이 삽입되어 장착되는 상측 커버(12)와, 상기 밀폐용기(10)의 하측 개구부에 일정 부분이 삽입되어 장착되는 하측 커버(13)로 구성된다.The airtight container 10 has an opening having upper and lower openings formed therein, and a main body 11 having an inlet 1 formed at a lower side thereof, and a discharge port 4 formed at a central portion thereof. The upper cover 12 is inserted into a predetermined portion and is mounted, and the lower cover 13 is inserted into a certain portion is inserted into the lower opening of the sealed container 10.

흡입구(1)에 연결되어 내부에 냉매가 유동되는 냉매유입관(2)과, 상기 냉매유입관(2)의 타 측에 연결된 어큐뮬레이터(3)등이 장착된다.A refrigerant inlet pipe 2 connected to the suction port 1 and flowing refrigerant therein and an accumulator 3 connected to the other side of the refrigerant inlet pipe 2 are mounted.

전동기구부(20)는 상기 밀폐용기(10)의 내부에 장착된 고정자(21)와, 상기 고정자(21)의 내면에 장착되어 회전하는 영구자석으로 된 회전자(22)로 구성된다.The electric mechanism part 20 is composed of a stator 21 mounted inside the hermetic container 10 and a rotor 22 made of a permanent magnet mounted on an inner surface of the stator 21 to rotate.

압축기구부(30)는 상기 회전자(22)의 내면에 압입되어 장착되며 하부에 편심부(31a)가 형성된 회전축(31)과, 상기 편심부(31a)를 내부에 수용하고 상기 회전축을 지지하는 상부베어링(32) 및 하부베어링(33)이 볼트(34)에 의해 결합되어 상기 밀폐용기(10)내부에 장착되는 실린더(40)와, 상기 회전축(31)의 일측에 형성된 편심부(31a)에 내면이 접하며 외면은 상기 실린더(40)의 내면에 접하여 상기 편심부(31a)의 회전에 의하여 공전 및 자전하는 롤러(35)와, 상기 롤러(35)외면에 슬라이딩접촉 되면서 상기 실린더(40) 내부를 고압부와 저압부로 분리하며 상기 실린더(40)의 중심방향으로 직선왕복운동 하도록 실린더(40)에 장착된 베인(36)으로 구성된다.The compression mechanism 30 is press-fitted to the inner surface of the rotor 22 and mounted therein to accommodate the rotation shaft 31 and the eccentric portion 31a formed therein and the eccentric portion 31a therein. The upper bearing 32 and the lower bearing 33 are coupled by bolts 34 to mount the cylinder 40 mounted inside the sealed container 10 and an eccentric portion 31a formed at one side of the rotating shaft 31. The inner surface is in contact with the outer surface is in contact with the inner surface of the cylinder 40, the roller 35 is revolving and rotated by the rotation of the eccentric portion (31a), and the sliding contact with the outer surface of the roller 35 the cylinder 40 The vane 36 is mounted on the cylinder 40 to separate the inside into a high pressure part and a low pressure part and to linearly reciprocate in the direction of the center of the cylinder 40.

또한, 상기 상부베어링(32)의 일정부위에는 압축된 냉매를 토출하는 토출포트(32a)가 형성되며, 상기 토출포트(32a)에는 압축된 냉매의 압력이 일정 이상이 될 경우에만 토출되도록 하는 토출밸브(도시되지 않음)가 장착되고, 상기 상부베어링(32)의 상부에는 토출 소음이 저감되도록 하는 소음기(37)가 장착된다.In addition, a discharge port 32a for discharging the compressed refrigerant is formed at a predetermined portion of the upper bearing 32, and the discharge port 32a is discharged to discharge only when the pressure of the compressed refrigerant becomes higher than a predetermined value. A valve (not shown) is mounted, and a silencer 37 is mounted on the upper bearing 32 to reduce the discharge noise.

상기와 같이 구성된 회전식 압축기에 전류가 공급되면, 상기 고정자(21)와 상기 회전자(22)의 상호 작용에 의해 상기 회전축(31)이 회전하게 되고, 상기 회전축(31)의 일측에 형성된 편심부(31a)의 회전에 의해 상기 롤러(35)가 상기 실린더(40)의 내부에서 상기 베인(36)과 접촉하며 회전하게 되고, 그 회전에 의해 상기 어큐뮬레이터(3)에 유입된 저온 저압의 냉매가 상기 유입관(2)과 흡입구(1)를 통해 상기 실린더(40)의 내부로 흡입되어 고온 고압의 상태로 압축된다.When the current is supplied to the rotary compressor configured as described above, the rotary shaft 31 is rotated by the interaction of the stator 21 and the rotor 22, the eccentric portion formed on one side of the rotary shaft 31 Rotation of 31a causes the roller 35 to rotate in contact with the vane 36 in the cylinder 40, and the low temperature low pressure refrigerant introduced into the accumulator 3 is rotated by the rotation. It is sucked into the cylinder 40 through the inlet pipe 2 and the suction port 1 is compressed to a state of high temperature and high pressure.

상기 실린더(40)에서 압축된 고온 고압의 냉매는 상기 토출밸브(도시되지 않음)를 개방시키고 상기 토출포트(32a)를 통해 토출되고, 토출된 냉매는 상기 소음 기(37)를 거쳐 상기 밀폐용기(10)의 내부를 통하여 상기 상측커버(12)에 형성된 토출구(4)를 통하여 토출된다.The high temperature and high pressure refrigerant compressed in the cylinder 40 opens the discharge valve (not shown) and is discharged through the discharge port 32a, and the discharged refrigerant is passed through the silencer 37 to the sealed container. It is discharged through the discharge port 4 formed in the upper cover 12 through the interior of the (10).

도 2는 이와 같은 회전식 압축기에 장착된 실린더(40)와 상부베어링(32) 및 하부베어링(33)의 사시도로서, 도시한 바와 같이 이와 같은 회전식 압축기에 있어서, 상기 압축기구부(30)의 실린더(40)는 주물 소재로 이루어지고, 상기 상부베어링(32) 및 하부베어링(33)은 소결 소재로 이루어지며, 상기 실린더(40)와 상부베어링(32) 및 하부베어링(33)을 각각 연삭 등으로 가공한 후 상기 실린더(40)의 양 측 단면에 볼트(34)에 의해 체결되므로 작업 공정이 추가되어 작업효율이 저하되는 문제점이 있다.FIG. 2 is a perspective view of the cylinder 40 and the upper bearing 32 and the lower bearing 33 mounted in the rotary compressor, and as shown in the rotary compressor, the cylinder of the compression mechanism unit 30 ( 40 is made of a casting material, the upper bearing 32 and the lower bearing 33 is made of a sintered material, the cylinder 40, the upper bearing 32 and the lower bearing 33 by grinding or the like, respectively. After processing, the bolts 34 are fastened to both end surfaces of the cylinder 40, so that a work process is added, thereby reducing work efficiency.

상기와 같은 점을 감안하여 안출한 본 발명의 목적은 실린더와 하부베어링에 각각 나사체결부재를 형성하여 실린더에 하부베어링을 장착시 조립공정을 단순화 시킬 수 있도록 하는 회전식 압축기의 회전축 고정장치를 제공함에 있다.An object of the present invention devised in view of the above point is to provide a rotating shaft fixing device of the rotary compressor to form a screwing member on the cylinder and the lower bearing, respectively, to simplify the assembly process when mounting the lower bearing on the cylinder. have.

상기와 같은 본 발명의 목적을 달성하기 위한 회전식 압축기의 회전축 고정장치는 일측에 편심부가 형성된 회전축과, 상기 편심부를 내부에 수용하며 회전축의 회전에 의해 압축공간을 형성하는 실린더와, 상기 실린더의 상측에 복개되어 압축공간을 형성함과 동시에 상기 회전축을 지지하는 상부베어링과, 상기 실린더의 하측에 복개되어 압축공간을 형성함과 동시에 상기 회전축을 지지하는 하부베어링과, 상기 실린더의 하측에 상기 하부베어링을 장착시, 나사결합 할 수있도록 각각 의 접촉면에 나사체결부재가 구비되어 구성된다.The rotating shaft fixing device of the rotary compressor for achieving the object of the present invention as described above is a rotating shaft having an eccentric portion formed on one side, a cylinder for receiving the eccentric portion therein and forming a compression space by the rotation of the rotating shaft, the upper side of the cylinder An upper bearing for supporting the rotating shaft, the lower bearing supporting the rotating shaft at the same time as the lower bearing of the cylinder; When mounting, screwing member is provided on each contact surface to be screwed.

또한, 상기 나사체결부재는 상기 실린더의 하측면에 돌출되어 형성된 수나사부와, 상기 수나사부에 체결 가능하도록 상기 하부베어링의 일측면에 소정의 길이로 함몰되고 측면에 암나사부가 형성되어 구성되는 것이 바람직하다.In addition, the screw fastening member is preferably formed with a male screw portion protruding from the lower side of the cylinder, and a recessed in a predetermined length on one side of the lower bearing so as to be fastened to the male screw portion and a female screw portion is formed on the side. Do.

또한, 상기 나사체결부재는 상기 하부베어링의 일측면에 돌출 되어 형성된 수나사부와, 상기 수나사부가 체결 가능하도록 상기 실린더의 일측면에 소정의 깊이로 함몰되고 측면에 암나사부가 형성되어 구성되는 것이 효과적이다.In addition, the screw fastening member is effective in that the male screw portion protruding on one side of the lower bearing and the male screw portion is recessed to a predetermined depth on one side of the cylinder so that the male screw portion can be fastened and the female screw portion is formed on the side surface. .

이하 본 발명의 일 실시예인 회전식 압축기의 회전축 고정장치를 첨부된 도면을 참조하여 보다 상세히 설명하면 다음과 같고, 종래 구조와 동일한 부분에 대하여는 동일한 부호를 부여하여 설명한다.DETAILED DESCRIPTION Hereinafter, a rotating shaft fixing device of a rotary compressor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 일 실시예인 회전축 고정장치가 장착된 회전식 압축기의내부 구조를 도시한 종단면도이고, 도 4는 도 3에 도시된 회전축 고정장치를 도시한 사시도로서, 이들 도면에 도시된 바와 같이 본 발명의 일 실시예인 회전축 고정장치가 장착된 회전식 압축기는 밀폐된 수용공간을 형성하는 밀폐용기(10)와, 상기 밀폐용기(10)의 내부에 장착되는 전동기구부(20)와, 상기 전동기구부(20)에 연결되어 구동되며 냉매를 압축하도록 상기 밀폐용기(10)의 내부에 장착되는 압축기구부(130)로 구성된다.3 is a longitudinal sectional view showing the internal structure of a rotary compressor equipped with a rotating shaft fixing device according to an embodiment of the present invention, Figure 4 is a perspective view showing the rotating shaft fixing device shown in Figure 3, As described above, a rotary compressor equipped with a rotating shaft fixing device according to one embodiment of the present invention includes a sealed container 10 forming a sealed receiving space, an electric mechanism part 20 mounted inside the sealed container 10, and the electric drive. It is connected to the mechanism 20 is driven and consists of a compression mechanism 130 is mounted inside the sealed container 10 to compress the refrigerant.

상기 압축기구부(130)는 회전자(22)의 내면에 압입되어 장착되며 하부에 편심부(131a)가 형성된 회전축(131)과, 상기 편심부(131a)를 내부에 수용하고 상기 회전축을 지지하는 상부베어링(132) 및 하부베어링(133)이 결합되어 상기 밀폐용기(10)내부에 장착되는 실린더(140)와, 상기 회전축(131)의 일측에 형성된 편심부(131a)에 내면이 접하며 외면은 상기 실린더(140)의 내면에 접하여 상기 편심부(131a)의 회전에 의하여 공전 및 자전하는 롤러(135)와, 상기 롤러(135)외면에 슬라이딩접촉 되면서 상기 실린더(140) 내부를 고압부와 저압부로 분리하며 상기 실린더(140)의 중심방향으로 직선왕복운동 하도록 실린더(140)에 장착된 베인(136)으로 구성된다.The compression mechanism 130 is press-fitted to the inner surface of the rotor 22 and is mounted to the rotating shaft 131 having an eccentric portion 131a and the eccentric portion 131a therein and supporting the rotating shaft therein. The upper bearing 132 and the lower bearing 133 is coupled to the inner surface is in contact with the cylinder 140 and the eccentric portion 131a formed on one side of the rotating shaft 131 is mounted inside the sealed container 10, the outer surface is In contact with the inner surface of the cylinder 140, the roller 135 is revolved and rotated by the rotation of the eccentric portion (131a), and the sliding contact with the outer surface of the roller 135, the cylinder 140 inside the high pressure portion and the low pressure portion It is composed of a vane 136 mounted to the cylinder 140 to separate and linearly reciprocating in the direction of the center of the cylinder 140.

또한, 상기 상부베어링(132)은 일정부위에는 압축된 냉매를 토출하는 토출포트(132a)가 형성되며, 상기 토출포트(132a)에는 압축된 냉매의 압력이 일정 이상이 될 경우에만 토출되도록 하는 토출밸브(도시되지 않음)가 장착되고, 상기 상부베어링(132)의 상부에는 토출 소음이 저감되도록 하는 소음기(137)가 장착되며 볼트(134)에 의해 실린더(140)에 고정된다.In addition, the upper bearing 132 has a discharge port 132a for discharging the compressed refrigerant at a predetermined portion, and the discharge port 132a is discharged so as to be discharged only when the pressure of the compressed refrigerant becomes a predetermined value or more. A valve (not shown) is mounted, and a silencer 137 is mounted on an upper portion of the upper bearing 132 and fixed to the cylinder 140 by bolts 134.

실린더(140)의 하측면에 돌출 되고 일측면에 수나가 형성된 수나사부(141a)와, 수나사부(141a)에 체결 가능하도록 하부베어링(133)의 일측면에 소정의 깊이로 함몰되고 그 측면에 암나사가 형성된 암나사부(141b)로 이루어진 나사체결부재(141)가 구성되고, 상기 수나사부(141a)를 암나사부(141b)에 체결하여 하부베어링(133)이 회전축(131)을 지지함과 동시에 실린더(140)에 복개되어 압축공간을 형성할 수있도록 장착된다.The male screw portion 141a protrudes from the lower side surface of the cylinder 140 and has a male thread formed on one side thereof, and is recessed to one side of the lower bearing 133 to a predetermined depth so as to be fastened to the male screw portion 141a. A screw fastening member 141 composed of a female threaded portion 141b having a female thread formed thereon, and the lower bearing 133 supports the rotating shaft 131 by fastening the male threaded portion 141a to the female threaded portion 141b. It is mounted on the cylinder 140 so as to form a compression space.

상기와 같이 구성된 회전식 압축기에 전원이 공급되어 냉매가 압축되고 토출되는 과정은 종래와 동일하며 상기 실린더(140)에 상부베어링(132) 및 하부베어링(133)이 장착되는 과정을 보다 상세히 설명하면 다음과 같다.When the power is supplied to the rotary compressor configured as described above, the process of compressing and discharging the refrigerant is the same as in the related art, and the process of mounting the upper bearing 132 and the lower bearing 133 on the cylinder 140 will be described in detail below. Same as

회전축(131)의 편심부(131a)가 실린더(140) 내부에 수용되고 실린더(140)의 상측에는 상부베어링(132)이 볼트(34)에 의해 체결되어 회전축(131)을 회전 가능하도록 지지한다. 그리고, 실린더(140)의 하측면에 형성된 수나사부(141a)에 하부베어링(133)의 암나사부(141b)가 고정되도록 체결하여 회전축(131)을 지지하도록 하는 것이다.The eccentric portion 131a of the rotating shaft 131 is accommodated in the cylinder 140, and the upper bearing 132 is fastened by the bolt 34 to support the rotating shaft 131 so as to be rotatable above the cylinder 140. . Then, the female screw portion 141b of the lower bearing 133 is fastened to the male screw portion 141a formed on the lower surface of the cylinder 140 so as to support the rotation shaft 131.

마찬가지로 본 발명의 또 다른 실시예인 회전식 압축기의 회전축 고정장치는 실린더(140)의 하측면에 암나사부가 형성되고, 하부베어링(133)의 상측면에 수나사부가 형성되어 암나사부와 수나사부가 체결되어 고정되는 구조로 구성되어 하부베어링(133)이 실린더(140)에 복개되어 압축공간을 형성함과 동시에 회전축(131)을 회전 가능하게 지지하는 것이다.Similarly, the rotating shaft fixing device of the rotary compressor according to another embodiment of the present invention has a female screw portion formed on the lower side of the cylinder 140 and a male screw portion formed on the upper side of the lower bearing 133 so that the female screw portion and the male screw portion are fastened and fixed. The lower bearing 133 is configured to be covered by the cylinder 140 to form a compression space and to support the rotation shaft 131 so as to be rotatable.

이와 같이 본 발명에 의한 회전식 압축기의 회전축 고정장치는 실린더(140)와 하부베어링(133)에 각각 수나사부(141a) 및 암나사부(141b)로 구성된 나사체결부재(141)를 형성하여 고정하는 구조를 갖음으로써, 조립공정이 단순화되어 작업공수가 줄게 된다.As described above, the rotating shaft fixing device of the rotary compressor according to the present invention has a structure in which a screw fastening member 141 including a male screw portion 141a and a female screw portion 141b is formed and fixed to the cylinder 140 and the lower bearing 133, respectively. By having, the assembly process is simplified to reduce the labor.

이상에서 살펴본 바와 같이, 본 발명에 의한 회전식 압축기의 회전축 고정장치는 수나사부와 암나사부로 형성된 나사체결부를 실린더 및 하부베어링에 형성하여 실린더에 하부베어링을 복개하는 구조로 형성됨으로써, 종래 볼트에 의해 고정되는 구조에 비하여 조립공정이 단순화되어 작업공수가 줄게 되고, 부품수가 줄어 제조원가가 절감되는 효과가 있다.As described above, the rotating shaft fixing device of the rotary compressor according to the present invention is formed by a screw fastening portion formed by the male screw portion and the female screw portion in the cylinder and the lower bearing to form a structure for covering the lower bearing on the cylinder, thereby fixing by conventional bolts Compared with the structure, the assembly process is simplified, reducing labor and reducing the number of parts.

Claims (3)

일측에 편심부가 형성된 회전축과, A rotation shaft formed with an eccentric portion on one side, 상기 편심부를 내부에 수용하며 회전축의 회전에 의해 압축공간을 형성하는 실린더와, A cylinder accommodating the eccentric part therein and forming a compression space by the rotation of the rotating shaft; 상기 실린더의 상측에 복개되어 압축공간을 형성함과 동시에 상기 회전축을 지지하는 상부베어링과, An upper bearing which is supported on the upper side of the cylinder to form a compression space and supports the rotating shaft; 상기 실린더의 하측에 복개되어 압축공간을 형성함과 동시에 상기 회전축을 지지하는 하부베어링과, A lower bearing which is supported on the lower side of the cylinder to form a compression space and supports the rotating shaft; 상기 실린더의 하측에 상기 하부베어링을 장착시, 나사결합 할 수있도록 각각의 접촉면에 나사체결부재가 구비되어 구성되는 것을 특징으로 하는 회전식 압축기의 회전축 고정장치.When mounting the lower bearing on the lower side of the cylinder, the rotating shaft fixing device of the rotary compressor, characterized in that the screwing member is provided on each contact surface to be screwed. 제 1항에 있어서, 상기 나사체결부재는 상기 실린더의 하측면에 돌출 되어 형성된 수나사부와, 상기 수나사부에 체결 가능하도록 상기 하부베어링의 일측면에 소정의 길이로 함몰되고 측면에 암나사부가 형성되어 구성되는 것을 특징으로 하는 회전식 압축기의 회전축 고정장치.The method of claim 1, wherein the screwing member is a male screw portion protruding to the lower side of the cylinder, and is recessed in a predetermined length on one side of the lower bearing so as to be fastened to the male screw portion and the female screw portion is formed on the side Rotary shaft fixing device of the rotary compressor, characterized in that the configuration. 제 1항에 있어서, 상기 나사체결부재는 상기 하부베어링의 일측면에 돌출 되어 형성된 수나사부와, 상기 수나사부가 체결 가능하도록 상기 실린더의 일측면에 소정의 깊이로 함몰되고 측면에 암나사부가 형성되어 구성되는 것을 특징으로 하는 회전식 압축기의 회전축 고정장치.The method of claim 1, wherein the screwing member is a male screw portion protruding on one side of the lower bearing, and the male screw portion is recessed to a predetermined depth on one side of the cylinder to be fastened to the female screw portion is formed on the side Rotary shaft fixing device of the rotary compressor, characterized in that the.
KR1020030094007A 2003-12-19 2003-12-19 Apparatus for fixed the axis of rotation in a rotary compressor KR100556966B1 (en)

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