KR100341099B1 - Structure for assembling piston pin of compressor - Google Patents

Structure for assembling piston pin of compressor Download PDF

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Publication number
KR100341099B1
KR100341099B1 KR1019980013063A KR19980013063A KR100341099B1 KR 100341099 B1 KR100341099 B1 KR 100341099B1 KR 1019980013063 A KR1019980013063 A KR 1019980013063A KR 19980013063 A KR19980013063 A KR 19980013063A KR 100341099 B1 KR100341099 B1 KR 100341099B1
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KR
South Korea
Prior art keywords
piston pin
piston
connecting rod
insertion hole
pin
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Application number
KR1019980013063A
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Korean (ko)
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KR19990080070A (en
Inventor
조중창
Original Assignee
삼성광주전자 주식회사
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Priority to KR1019980013063A priority Critical patent/KR100341099B1/en
Publication of KR19990080070A publication Critical patent/KR19990080070A/en
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Publication of KR100341099B1 publication Critical patent/KR100341099B1/en

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Classifications

    • 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
    • F04B39/0005—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 adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/0076—Pistons  the inside of the pistons being provided with ribs or fins
    • 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
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compressor (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE: Assembling structure of a piston pin for a compressor is provided to improve assembling efficiency by combining a piston, a connecting rod and the piston pin with inserting a fitting protrusion of an assembling member to a fitting groove of the piston pin in inserting the piston pin. CONSTITUTION: A small bore part of a connecting rod(15) is inserted to an opening groove(14a) of a piston(14), and a piston pin(16) is inserted to a piston pin insertion hole of the piston. The piston pin is combined with an assembling member to prevent the piston pin from being separated from the piston. The assembling member has a body part installed in the small bore part of the connecting rod, and a leg part formed vertically to the body part including the piston pin insertion hole and an elastic fitting protrusion part. A fitting groove is formed around the piston pin, and a bolt assembling hole(17b') is formed in the leg part to fix the assembling member in the small bore part of the connecting rod. The piston pin is combined efficiently by inserting the fitting protrusion to the fitting groove of the piston pin.

Description

압축기의 피스톤 핀 체결 구조Piston Pin Fastening Structure of Compressor

본 발명은 피스톤 핀의 조립성을 개선한 압축기의 피스톤 핀 체결 구조에 관한 것이다.The present invention relates to a piston pin fastening structure of a compressor with improved assembly of the piston pin.

일반적으로, 밀폐형 압축기에는 고정자와 회전자로 이루어지는 전동 기구부와, 회전자의 중앙에 압입 고정된 크랭크 샤프트의 회전 동작에 의해 냉매를 흡입하여 압축시킨 후 토출시키는 압축 기구부가 구비되어 있고, 압축 기구부에는 도 1에 도시된 바와 같이, 냉매의 흡입 및 압축 공간을 이루는 실린더 블록(1)과, 크랭크 샤프트(2)를 회전 가능하게 지지하도록 실린더 블록(1)과 일체로 형성되는 베어링(3)과, 크랭크 샤프트(2)의 편심축부(2a)에 결합되어 실린더 블록(1)의 내부에서 직선 왕복 운동을 하는 피스톤(4)과, 크랭크 샤프트(2)의 편심축부(2a)와 피스톤(4)을 연결하는 커넥팅 로드(5)와, 실린더 블록(1)의 선단부에 고정되는 도시하지 않은 실린더 헤드와, 실린더 블록(1)의 선단부와 실린더 헤드의 사이에 개재되어 냉매를 실린더 블록(1)의 내부로 흡입함과 아울러 압축 냉매를 토출시키는 도시하지 않은 밸브장치 등이 구비되어 있다.In general, a hermetic compressor is provided with an electric mechanism part consisting of a stator and a rotor, and a compression mechanism part which sucks and compresses a refrigerant by a rotation operation of a crankshaft which is press-fitted and fixed to the center of the rotor. As shown in FIG. 1, a cylinder block 1 forming a suction and compression space of a refrigerant, a bearing 3 integrally formed with the cylinder block 1 to rotatably support the crankshaft 2, and The piston 4 coupled to the eccentric shaft portion 2a of the crank shaft 2 and performing linear reciprocating motion inside the cylinder block 1, the eccentric shaft portion 2a and the piston 4 of the crank shaft 2, A connecting rod 5 to be connected, a cylinder head (not shown) fixed to the distal end of the cylinder block 1, and a refrigerant interposed between the distal end of the cylinder block 1 and the cylinder head to cool the inside of the cylinder block 1. By Furthermore ipham and is provided with a valve (not shown), such as devices for discharging compressed refrigerant.

전술한 실린더 블록(1)의 내부에서 직선 왕복 운동하는 피스톤(4)은 피스톤 핀(6)과 록킹 핀(7)에 의해 커넥팅 로드(5)의 소경부에 조립되는바, 이하, 도 1 및 도 2를 참조로 하여 피스톤 핀의 체결 구조를 상세히 설명한다.The piston 4, which linearly reciprocates in the above-described cylinder block 1, is assembled to the small diameter portion of the connecting rod 5 by the piston pin 6 and the locking pin 7. With reference to Figure 2 will be described in detail the fastening structure of the piston pin.

도시된 바와 같이, 피스톤(4)에는 커넥팅 로드(5)의 소경부가 삽입되는 개방홈(4a)과, 피스톤 핀(6)이 삽입되는 피스톤 핀 삽입공(4b)이 형성되어 있고, 피스톤(4)과 피스톤 핀(6)에는 록킹 핀(7)이 삽입되는 도시하지 않은 록킹 핀 삽입공이 각각 형성되어 있으며, 실린더 블록(1)의 하부면에는 피스톤 핀(6)을 삽입하기 위한 절개부(1a)가 형성되어 있다.As shown, the piston 4 is formed with an opening groove 4a into which the small diameter portion of the connecting rod 5 is inserted, and a piston pin insertion hole 4b into which the piston pin 6 is inserted. ) And the piston pin 6 is formed with a locking pin insertion hole (not shown) into which the locking pin 7 is inserted, respectively, and a cutout 1a for inserting the piston pin 6 into the lower surface of the cylinder block 1. ) Is formed.

이에 따라, 실린더 블록(1)과 일체로 형성된 베어링(3)의 내부에 크랭크 샤프트(2)를 삽입 설치하고, 크랭크 샤프트(2)에 도시하지 않은 고정자를 압입 고정한다.Thereby, the crankshaft 2 is inserted in the inside of the bearing 3 formed integrally with the cylinder block 1, and the stator which is not shown in the crankshaft 2 is press-fitted and fixed.

다음으로, 크랭크 샤프트(2)의 편심축부(2a)에 커넥팅 로드(5)의 대경부를 연결 설치함과 아울러, 커넥팅 로드(5)의 소경부를 실린더 블록(1)의 내부에 위치시키고, 실린더 블록(1)의 선단부로부터 실린더 블록(1)의 내부로 피스톤(4)을 삽입하여 커넥팅 로드(5)의 소경부와 피스톤(4)의 피스톤 핀 삽입공(4b)을 일치시킨 후, 실린더 블록(1)의 절개부(1a)를 통해 피스톤 핀(6)을 삽입하여 피스톤(4)과 커넥팅 로드(5)의 소경부를 체결한다.Next, while connecting the large diameter part of the connecting rod 5 to the eccentric shaft part 2a of the crankshaft 2, the small diameter part of the connecting rod 5 is located inside the cylinder block 1, and the cylinder block After the piston 4 is inserted into the cylinder block 1 from the distal end of (1), the small diameter portion of the connecting rod 5 and the piston pin insertion hole 4b of the piston 4 coincide with each other. The piston pin 6 is inserted through the cutout portion 1a of 1) to fasten the small diameter portion of the piston 4 and the connecting rod 5.

이와 같은 방법으로 피스톤(4)과 커넥팅 로드(4)를 피스톤 핀(6)에 의해 일차적으로 체결한 후에는, 피스톤 핀(6)이 피스톤(4)으로부터 분리되는 것을 방지하도록 피스톤(4)과 피스톤 핀(6)의 록킹 핀 삽입공을 통해 록킹 핀(7)을 압입하여 피스톤(4)과 커넥팅 로드(5) 및 피스톤 핀(6)을 완전히 체결한다.After the piston 4 and the connecting rod 4 are first fastened by the piston pin 6 in this manner, the piston 4 and the piston 4 are prevented from being separated from the piston 4. The locking pin 7 is press-fitted through the locking pin insertion hole of the piston pin 6 to fully engage the piston 4, the connecting rod 5, and the piston pin 6.

상기와 같은 피스톤 핀 체결 구조에 의하면, 실린더 블록의 절개부를 통해 피스톤 핀을 삽입하여 피스톤과 커넥팅 로드를 체결한 후 록킹 핀으로 피스톤 핀을 고정하기 위해서는, 피스톤의 록킹 핀 삽입공과 피스톤 핀의 록킹 핀 삽입공을 정확히 일치시키는 작업이 선행되어야 한다.According to the piston pin fastening structure as described above, in order to fix the piston pin with the locking pin after inserting the piston pin through the cutout of the cylinder block to fasten the piston and the connecting rod, the locking pin insertion hole of the piston and the locking pin of the piston pin The exact matching of the insertion hole must be preceded.

그러나, 피스톤과 피스톤 핀의 록킹 핀 삽입공을 정확히 일치시키는 작업은 결코 용이하지가 않으며, 이로 인해 많은 작업 시간이 소요되는 문제점이 있었다.However, it is not easy to exactly match the locking pin insertion hole of the piston and the piston pin, which has a problem that takes a lot of time.

본 발명은 상기 문제점을 해결하기 위한 것으로, 피스톤 핀의 조립성을 개선한 압축기의 피스톤 핀 체결 구조를 제공함을 목적으로 한다.The present invention is to solve the above problems, an object of the present invention is to provide a piston pin fastening structure of the compressor to improve the assembly of the piston pin.

도 1은 베어링이 실린더 블록에 일체로 형성되어 있는 종래의 밀폐형 압축기의 요부 분해 사시도.1 is an exploded perspective view of main parts of a conventional hermetic compressor in which a bearing is integrally formed in a cylinder block;

도 2는 종래 기술에 따른 피스톤 핀의 체결 구조를 나타내기 위한 단면도.2 is a cross-sectional view showing a fastening structure of a piston pin according to the prior art.

도 3은 본 발명에 따른 피스톤 핀의 체결 구조를 나타내기 위한 분해 단면도.Figure 3 is an exploded cross-sectional view showing a fastening structure of the piston pin according to the present invention.

도 4는 도 3의 체결 부재를 나타내기 위한 사시도.4 is a perspective view illustrating the fastening member of FIG. 3.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

14 : 피스톤 14a : 개방홈14: piston 14a: open groove

14b : 피스톤 핀 삽입공 15 : 커넥팅 로드14b: piston pin insertion hole 15: connecting rod

15a : 볼트 결합공 16 : 피스톤 핀15a: bolt coupling hole 16: piston pin

16a : 걸림홈 17 : 체결 부재16a: locking groove 17: fastening member

17a : 몸체부 17a' : 피스톤 핀 삽입공17a: body portion 17a ': piston pin insertion hole

17a" : 탄성 걸림턱부 17b : 다리부17a ": elastic locking jaw 17b: leg

17b' : 볼트 결합공 18 : 고정 볼트17b ': Bolt coupling hole 18: Fixing bolt

상기 목적을 달성하기 위한 본 발명에 따른 피스톤 핀 체결 구조는, 크랭크 샤프트의 편심축부에 대경부가 연결된 커넥팅 로드의 소경부를 피스톤의 개방홈 내부에 삽입하고, 상기 피스톤에 형성된 피스톤 핀 삽입공을 통해 피스톤 핀을 삽입한 후, 상기 피스톤 핀이 상기 피스톤으로부터 분리되는 것을 방지하도록 상기 피스톤 핀을 체결 부재로 체결하여서 된 피스톤 핀 체결 구조에 있어서, 상기 체결 부재는 상기 커넥팅 로드의 소경부 상ㆍ하부면중 적어도 하나 이상에 설치되는 몸체부와, 상기 몸체부에 대해 수직으로 형성되는 다리부로 이루어지고, 상기 몸체부에는 상기 피스톤 핀이 삽입되는 피스톤 핀 삽입공과, 상기 피스톤 핀 삽입공의 중심부를 향하도록 형성된 탄성 걸림턱부가 구비되며, 상기 피스톤 핀의 원주면 소정 부위에는 상기 탄성 걸림턱부가 걸려지는 걸림홈이 구비되고, 상기 커넥팅 로드의 소경부와 상기 체결 부재의 다리부에는 상기 체결 부재를 상기 커넥팅 로드의 소경부에 고정하기 위한 고정 볼트가 삽입되는 볼트 결합공이 형성되는 것을 특징으로 한다.Piston pin fastening structure according to the present invention for achieving the above object, the small diameter portion of the connecting rod connecting the large diameter portion to the eccentric shaft portion of the crankshaft is inserted into the opening groove of the piston, the piston through the piston pin insertion hole formed in the piston In the piston pin fastening structure in which the piston pin is fastened with the fastening member to prevent the piston pin from being separated from the piston after the pin is inserted, the fastening member is in the upper and lower surfaces of the small diameter portion of the connecting rod. It is made up of at least one body portion and the leg portion formed perpendicular to the body portion, the body portion is formed to face the piston pin insertion hole into which the piston pin is inserted, and the center of the piston pin insertion hole An elastic locking jaw portion is provided, and a predetermined portion of the circumferential surface of the piston pin The locking jaw is provided with a locking groove to be caught, and the bolt coupling hole into which the fixing bolt for fixing the fastening member to the small diameter portion of the connecting rod is formed in the small diameter portion of the connecting rod and the leg portion of the connecting member. It features.

이하, 첨부도면을 참조로 하여 본 발명에 따른 피스톤 핀 체결 구조의 바람직한 실시예를 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the piston pin fastening structure according to the present invention with reference to the accompanying drawings in detail as follows.

도 3에는 본 발명에 따른 피스톤 핀의 체결 구조를 나타내기 위한 분해 단면도가 도시되어 있고, 도 4에는 도 3의 체결 부재를 나타내기 위한 사시도가 도시되어 있다.3 is an exploded cross-sectional view for illustrating the fastening structure of the piston pin according to the present invention, and FIG. 4 is a perspective view for showing the fastening member of FIG. 3.

도시된 바와 같이, 피스톤(14)에는 커넥팅 로드(15)의 소경부가 삽입되는 개방홈(14a)과, 피스톤 핀(16)이 삽입되는 피스톤 핀 삽입공(14b)이 형성되어 있고, 커넥팅 로드(15)의 소경부 상부면에는 본 발명에 따른 체결 부재(17)가 고정되어 있다.As shown, the piston 14 is formed with an opening groove 14a into which the small diameter portion of the connecting rod 15 is inserted, and a piston pin insertion hole 14b into which the piston pin 16 is inserted. The fastening member 17 according to the present invention is fixed to the upper surface of the small diameter portion 15).

체결 부재(17)는 커넥팅 로드(15)의 소경부 상부면에 설치되는 몸체부(17a)와, 몸체부(17a)에 대해 수직으로 형성되는 다리부(17b)로 구성된다.The fastening member 17 is composed of a body portion 17a installed on the upper surface of the small diameter portion of the connecting rod 15 and a leg portion 17b formed perpendicularly to the body portion 17a.

몸체부(17a)에는 피스톤 핀(16)이 삽입되는 피스톤 핀 삽입공(17a')과, 피스톤 핀 삽입공(17a')의 중심부를 향해 상측으로 경사지게 형성된 탄성 걸림턱부(17a")가 형성되어 있고, 커넥팅 로드(15)의 소경부 단부측과 체결 부재(17)의 다리부(17b)에는 볼트(18)가 결합되는 볼트 결합공(15a,17b')이 형성되어 있으며, 피스톤 핀(16)의 상측 소정 부위에는 체결 부재(17)의 탄성 걸림턱부(17a")가 걸려지게 되는 걸림홈(16a)이 형성되어 있다.The body portion 17a is formed with a piston pin insertion hole 17a 'into which the piston pin 16 is inserted, and an elastic locking jaw portion 17a "formed to be inclined upward toward the center of the piston pin insertion hole 17a'. In addition, bolt coupling holes 15a and 17b 'to which the bolt 18 is coupled are formed in the small diameter end portion of the connecting rod 15 and the leg portion 17b of the fastening member 17, and the piston pin 16 In the upper predetermined portion of the () is formed a locking groove (16a) to be caught the elastic locking jaw portion 17a "of the fastening member (17).

이에 따라, 실린더 블록과 일체로 형성된 베어링의 내부에 크랭크 샤프트를 삽입하고, 크랭크 샤프트에 고정자를 압입 고정한 상태에서, 볼트(18)를 이용하여 체결 부재(17)의 다리부(17b)를 커넥팅 로드(15)의 소경부 단부측에 고정하므로써 체결 부재(17)의 몸체부(17a)를 소경부의 상부면에 고정하고, 크랭크 샤프트의 편심축부에 커넥팅 로드(15)의 대경부를 연결 설치함과 아울러, 커넥팅 로드(15)의 소경부를 실린더 블록의 내부에 위치시킨다.Accordingly, the crankshaft is inserted into the bearing formed integrally with the cylinder block, and the connecting rod 17b of the fastening member 17 is connected using the bolt 18 while the stator is press-fitted and fixed to the crankshaft. Fixing the body portion 17a of the fastening member 17 to the upper surface of the small diameter portion by fixing to the small diameter portion end side of (15), and connecting the large diameter portion of the connecting rod 15 to the eccentric shaft portion of the crankshaft; In addition, the small diameter portion of the connecting rod 15 is located inside the cylinder block.

이후, 실린더 블록의 선단부로부터 실린더 블록의 내부로 피스톤(14)을 삽입하여 커넥팅 로드(15)의 소경부와 피스톤(14)의 피스톤 핀 삽입공(14b)을 일치시킨 후, 실린더 블록의 절개부를 통해 피스톤 핀(16)을 삽입한다.Thereafter, the piston 14 is inserted into the cylinder block from the distal end of the cylinder block so that the small diameter portion of the connecting rod 15 and the piston pin insertion hole 14b of the piston 14 coincide with each other. Insert the piston pin 16 through it.

이와 같이 피스톤 핀(16)을 삽입하면 피스톤 핀(16)의 삽입에 따라 체결 부재(17)에 형성된 탄성 걸림턱부(17a")가 피스톤 핀(16)의 상부면에 접촉되고, 이에 따라 탄성 걸림턱부(17a")는 피스톤 핀(16)에 의해 상측으로 탄성 변형되는바, 이 상태에서 피스톤 핀을 더 삽입하면 체결 부재(17)의 탄성 걸림턱부(17a")가 피스톤 핀(16)의 걸림홈(16a)에 걸려지게 되어 피스톤과 커넥팅 로드 및 피스톤 핀의 체결이 완료된다.When the piston pin 16 is inserted in this way, the elastic locking jaw portion 17a ″ formed in the fastening member 17 is in contact with the upper surface of the piston pin 16 as the piston pin 16 is inserted. The jaw portion 17a "is elastically deformed upward by the piston pin 16. If the piston pin is further inserted in this state, the elastic locking jaw portion 17a" of the fastening member 17 catches the piston pin 16. Engaged in the groove (16a) is completed the fastening of the piston, the connecting rod and the piston pin.

이로써, 피스톤 핀을 간단하게 체결할 수 있게 된다.As a result, the piston pin can be simply fastened.

이상에서 설명한 바와 같이 본 발명에 따른 압축기의 피스톤 핀 체결 구조에 의하면, 체결 부재를 고정 설치한 커넥팅 로드의 소경부를 피스톤의 개방홈 내부로 삽입한 후, 피스톤의 피스톤 핀 삽입공과 커넥팅 로드의 소경부 및 체결 부재의 피스톤 핀 삽입공을 통해 피스톤 핀을 삽입하면, 피스톤 핀의 걸림홈에 체결 부재의 걸림턱부가 걸려지게 되고, 이로 인해 피스톤과 커넥팅 로드 및 피스톤 핀의 체결이 완료된다.As described above, according to the piston pin fastening structure of the compressor according to the present invention, after inserting the small diameter portion of the connecting rod fixedly installed with the fastening member into the opening of the piston, the small diameter portion of the piston pin insertion hole of the piston and the connecting rod And when the piston pin is inserted through the piston pin insertion hole of the fastening member, the locking projection of the fastening member is caught in the locking groove of the piston pin, thereby completing the fastening of the piston, the connecting rod and the piston pin.

따라서, 피스톤 핀의 조립성을 향상시킬 수 있게 된다.Therefore, the assemblability of a piston pin can be improved.

Claims (1)

크랭크 샤프트의 편심축부에 대경부가 연결된 커넥팅 로드의 소경부를 피스톤의 개방홈 내부에 삽입하고, 상기 피스톤에 형성된 피스톤 핀 삽입공을 통해 피스톤 핀을 삽입한 후, 상기 피스톤 핀이 상기 피스톤으로부터 분리되는 것을 방지하도록 상기 피스톤 핀을 체결 부재로 체결하여서 된 피스톤 핀 체결 구조에 있어서,After inserting the small diameter portion of the connecting rod connecting the large diameter portion to the eccentric shaft portion of the crankshaft into the opening of the piston, and inserting the piston pin through the piston pin insertion hole formed in the piston, the piston pin is separated from the piston. In the piston pin fastening structure by fastening the piston pin with a fastening member to prevent, 상기 체결 부재는 상기 커넥팅 로드의 소경부 상ㆍ하부면중 적어도 하나 이상에 설치되는 몸체부와, 상기 몸체부에 대해 수직으로 형성되는 다리부로 이루어지고, 상기 몸체부에는 상기 피스톤 핀이 삽입되는 피스톤 핀 삽입공과, 상기 피스톤 핀 삽입공의 중심부를 향하도록 형성된 탄성 걸림턱부가 구비되며, 상기 피스톤 핀의 원주면 소정 부위에는 상기 탄성 걸림턱부가 걸려지는 걸림홈이 구비되고, 상기 커넥팅 로드의 소경부와 상기 체결 부재의 다리부에는 상기 체결 부재를 상기 커넥팅 로드의 소경부에 고정하기 위한 고정 볼트가 삽입되는 볼트 결합공이 형성되는 것을 특징으로 하는 압축기의 피스톤 핀 체결 구조.The fastening member includes a body portion installed on at least one of upper and lower surfaces of the small diameter portion of the connecting rod, and a leg portion formed perpendicularly to the body portion, wherein the piston pin is inserted into the body portion. A pin insertion hole and an elastic locking jaw portion formed to face the center of the piston pin insertion hole are provided. A predetermined groove on the circumferential surface of the piston pin is provided with a locking groove to which the elastic locking jaw portion is caught, and the small diameter portion of the connecting rod is provided. And a bolt engaging hole in which a fixing bolt for fixing the fastening member to the small diameter portion of the connecting rod is formed in the leg portion of the fastening member.
KR1019980013063A 1998-04-13 1998-04-13 Structure for assembling piston pin of compressor KR100341099B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125783A (en) * 1983-12-08 1985-07-05 Matsushita Refrig Co Enclosed reciprocating type compressor
JPS60125784A (en) * 1983-12-08 1985-07-05 Matsushita Refrig Co Connecting device for piston and connecting rod of enclosed type compressor
JPS60261958A (en) * 1984-06-11 1985-12-25 Toyota Motor Corp Piston splitted into two
JPH0666200A (en) * 1991-08-09 1994-03-08 Adiabatics Inc Hybrid piston for high-temperature engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125783A (en) * 1983-12-08 1985-07-05 Matsushita Refrig Co Enclosed reciprocating type compressor
JPS60125784A (en) * 1983-12-08 1985-07-05 Matsushita Refrig Co Connecting device for piston and connecting rod of enclosed type compressor
JPS60261958A (en) * 1984-06-11 1985-12-25 Toyota Motor Corp Piston splitted into two
JPH0666200A (en) * 1991-08-09 1994-03-08 Adiabatics Inc Hybrid piston for high-temperature engine

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