KR20050029932A - Variable swash plate type compressor - Google Patents

Variable swash plate type compressor Download PDF

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Publication number
KR20050029932A
KR20050029932A KR1020030066210A KR20030066210A KR20050029932A KR 20050029932 A KR20050029932 A KR 20050029932A KR 1020030066210 A KR1020030066210 A KR 1020030066210A KR 20030066210 A KR20030066210 A KR 20030066210A KR 20050029932 A KR20050029932 A KR 20050029932A
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KR
South Korea
Prior art keywords
swash plate
support
drive shaft
type compressor
compressor
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KR1020030066210A
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Korean (ko)
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KR100532137B1 (en
Inventor
이건호
권윤기
이태진
한영창
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학교법인 두원학원
이건호
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Priority to KR10-2003-0066210A priority Critical patent/KR100532137B1/en
Publication of KR20050029932A publication Critical patent/KR20050029932A/en
Application granted granted Critical
Publication of KR100532137B1 publication Critical patent/KR100532137B1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • F04B27/1081Casings, housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1036Component parts, details, e.g. sealings, lubrication
    • F04B27/1054Actuating elements
    • F04B27/1063Actuating-element bearing means or driving-axis bearing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/12Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders having plural sets of cylinders or pistons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/14Provisions for readily assembling or disassembling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14Control
    • F04B27/16Control of pumps with stationary cylinders
    • F04B27/18Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804Controlled by crankcase pressure
    • F04B2027/1809Controlled pressure
    • F04B2027/1813Crankcase pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14Control
    • F04B27/16Control of pumps with stationary cylinders
    • F04B27/18Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804Controlled by crankcase pressure
    • F04B2027/1809Controlled pressure
    • F04B2027/1818Suction pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/10Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B27/1009Distribution members
    • F04B27/1018Cylindrical distribution members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14Control
    • F04B27/16Control of pumps with stationary cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members
    • F04B39/1066Valve plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component 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
    • F04B39/10Adaptations or arrangements of distribution members
    • F04B39/1073Adaptations or arrangements of distribution members the members being reed valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Abstract

A variable swash plate type compressor is provided to minimize friction by ball members and a thrust bearing when a tilt angle of a swash plate changes. A swash plate(150) has a through-hole(150a) formed in the center in a section shape corresponding to a power transmitting part(142) of a driving shaft to pass the power transmitting part through and has a plurality of support protrusions(152) formed at one side. A thrust bearing(160) is installed at an inner surface of a rear housing to support the support protrusions. An insertion groove is formed at an end section of each support protrusion. A ball member(190) is mounted at the insertion groove for rolling in contact with the thrust bearing.

Description

가변형 사판식 압축기{Variable Swash Plate Type Compressor} Variable Swash Plate Type Compressor

본 발명은 가변형 사판식 압축기에 관한 것으로, 보다 상세하게는 엔진의 구동력을 전달받아 구동하는 구동축에 설치된 사판의 일단을 전방하우징의 내측면에서 지지토록 하여 압축기의 구조를 간단하게 구성할 수 있도록 한 가변형 사판식 압축기에 관한 것이다.The present invention relates to a variable swash plate type compressor, and more particularly, to support one end of a swash plate installed on a drive shaft driven by a driving force of an engine so as to support the inner side of the front housing so that the structure of the compressor can be simply configured. It relates to a variable swash plate compressor.

일반적으로 자동차용 공조장치의 압축기로 많이 사용되고 있는 일반적인 사판식 압축기는, 엔진으로부터 동력을 전달받는 구동축에 디스크 형상의 사판이 설치된다.In general, a swash plate type compressor commonly used as a compressor of a vehicle air conditioner is provided with a disk-shaped swash plate on a drive shaft that receives power from an engine.

상기 사판에는 그 둘레를 따라 슈(shoe)를 개재하여 다수의 피스톤들이 실린더블록에 형성된 다수의 실린더보어 내부에서 직선 왕복운동하도록 연결되며, 피스톤의 왕복운동에 의해 냉매가스를 흡인하고 압축하여 배출하도록 구성된다.The swash plate is connected to a linear reciprocating motion in a plurality of cylinder bores formed in the cylinder block through a shoe along the circumference thereof, and to suck and compress the refrigerant gas by the reciprocating motion of the piston. It is composed.

이러한, 종래의 압축기는 엔진으로부터 압축기로 동력을 전달하는 클러치를 온/오프시킬 때, 엔진에 순간적인 토크가 증가하여 엔진에 무리가 발생함과 동시에 승차감이 떨어지는 현상이 발생하고, 정밀한 차실내의 온도제어가 불가능하였다.In the conventional compressor, when the clutch which transmits power from the engine to the compressor is turned on / off, an instantaneous torque is increased in the engine, causing the engine to be overwhelmed, resulting in a drop in ride comfort, and a precise vehicle interior. Temperature control was impossible.

따라서, 이러한 문제를 해결하기 위하여, 최근에는 열부하의 변동에 따라 사판의 경사각이 변화되어 피스톤의 이송량을 제어함으로써 정밀한 온도제어를 달성함과 동시에, 경사각이 연속적으로 변화함으로써 압축기에 의한 엔진의 급격한 토크 변동을 적게 하여 차량의 승차감을 향상시킬 수 있는 가변형 사판식 압축기가 제시되고 있다.Therefore, in order to solve this problem, in recent years, the inclination angle of the swash plate is changed in accordance with the change of the heat load to achieve precise temperature control by controlling the feed amount of the piston, and at the same time, the sudden torque of the engine by the compressor by changing the inclination angle continuously A variable swash plate type compressor that can improve the riding comfort of a vehicle by reducing the variation has been proposed.

도면 도 1은, 종래의 가변형 사판식 압축기를 도시한 도면이다.1 is a view showing a conventional variable swash plate compressor.

상기 종래의 가변형 사판식 압축기(10)는, 내주면에 길이방향을 따라 평행하게 형성된 다수의 실린더보어(11a)를 가지는 실린더블록(11)과, 상기 실린더블록(11)의 전방에 밀폐 결합된 전방하우징(12)과, 상기 실린더블록(11)의 후방에 밸브 플레이트(13a)를 개재하여 밀폐 결합된 후방하우징(13)으로 구성된다.The conventional variable swash plate compressor 10, the cylinder block 11 having a plurality of cylinder bores (11a) formed in parallel in the longitudinal direction on the inner circumferential surface, the front is hermetically coupled to the front of the cylinder block (11) It consists of a housing 12 and a rear housing 13 which is hermetically coupled via a valve plate 13a at the rear of the cylinder block 11.

상기 전방하우징(12)의 안쪽에는 크랭크실(14)이 마련되며, 전방하우징(12)의 중심에는 구동축(15)의 일단이 회전가능하게 지지되는 한편, 상기 구동축(15)의 타단은 상기 크랭크실(14)을 통과하여 실린더블록(11)의 중심축공(11b)에 베어링(11c)을 매개로 하여 지지된다.The crank chamber 14 is provided inside the front housing 12, and one end of the drive shaft 15 is rotatably supported at the center of the front housing 12, while the other end of the drive shaft 15 is the crank. It passes through the seal 14 and is supported by the bearing 11c at the center shaft hole 11b of the cylinder block 11.

또한, 상기 구동축(15)에는 러그 플레이트(16)와 사판(17)이 설치되며, 상기 러그 플레이트(16)와 사판(17) 사이에는 상기 러그 플레이트(16)에 대하여 사판(17)을 탄력 지지하기 위한 스프링(27)이 개재되어 있다.In addition, a lug plate 16 and a swash plate 17 are installed on the drive shaft 15, and the swash plate 17 is elastically supported with respect to the lug plate 16 between the lug plate 16 and the swash plate 17. Spring 27 for intervening is interposed.

상기 러그 플레이트(16)에는, 힌지홀(16b)이 각각 직선 천공된 한쌍의 동력전달용 돌기(16a)가 일면 선단부에 일체로 돌출되게 형성되어 구동축(15)과 함께 회전하도록 되어 있으며, 상기 사판(17)은 구동축(15)에 소정 각도로 경사가능하게 끼워진 채로 그 일면에 고정된 힌지핀(18)이 상기 러그 플레이트(16)의 동력전달용 돌기(16a)에 형성된 힌지홀(16b)에 삽입되어, 상기 러그 플레이트(16)와 함께 회전함과 동시에 그 경사각이 가변되도록 되어 있다.In the lug plate 16, a pair of power transmission protrusions 16a, each of which has a hinge hole 16b linearly perforated, is formed to protrude integrally at one end of the surface to rotate together with the drive shaft 15, and the swash plate 17 is a hinge pin (18) fixed to one surface of the lug plate (16) formed in the hinge hole (16b) of the power transmission projection (16a) is fixed to one side while being inclined at a predetermined angle to the drive shaft (15). It is inserted and rotated together with the lug plate 16, and its inclination angle is variable.

또한, 상기 사판(17)의 외주면은 슈(20)를 개재하여 각 실린더보어(11a)에 설치되어 있는 피스톤(19)에 슬라이드 가능하게 끼워진다.In addition, the outer circumferential surface of the swash plate 17 is slidably fitted to the piston 19 provided in each cylinder bore 11a via the shoe 20.

따라서, 상기 사판(17)이 경사진 상태에서 회전함에 따라 그 외주면에 슈(20)를 개재하여 끼워진 피스톤(19)들은 상기 실린더블록(11)의 각 실린더보어(11a)내에서 왕복운동하게 된다.Accordingly, as the swash plate 17 rotates in an inclined state, the pistons 19 fitted through the shoe 20 on the outer circumferential surface thereof reciprocate in each cylinder bore 11a of the cylinder block 11. .

그리고, 상기 후방하우징(13)에는 흡입실(21)과 배출실(22)이 각각 형성되어 있으며, 후방하우징(13)과 실린더블록(11) 사이에 개재되는 밸브 플레이트(13a)에는 각 실린더보어(11a)에 대응하는 곳에 흡입구(23)과 배출구(24)가 각각 형성되어 있다.In addition, the rear housing 13 has a suction chamber 21 and a discharge chamber 22, respectively, and the valve plate 13a interposed between the rear housing 13 and the cylinder block 11 each cylinder bore. The suction port 23 and the discharge port 24 are formed in the position corresponding to 11a, respectively.

상기 밸브 플레이트(13a)에 형성된 각각의 흡입구(23) 및 배출구(24)에는 상기 피스톤(19)의 왕복 운동에 따른 압력변화에 의하여 상기 흡입구(23)와 배출구(24)를 개폐시키기 위한 흡입리드(25)와 배출리드(26)가 구비된다.Suction leads for opening and closing the inlet port 23 and the outlet port 24 in each of the inlet port 23 and the outlet port 24 formed in the valve plate 13a by the pressure change according to the reciprocating motion of the piston 19. 25 and a discharge lead 26 are provided.

또한, 상기 후방하우징(13)에는 상기 실린더보어(11a)내의 냉매 흡입압과 크랭크실(14) 내의 압력과의 차압을 가변시켜 사판(17)의 경사각을 조절하도록 상기 크랭크실(14)과 흡입실(21)을 작동적으로 통하게 하는 제어밸브(28)가 설치된다.In addition, the rear housing 13 has suction with the crank chamber 14 to adjust the inclination angle of the swash plate 17 by varying the pressure difference between the refrigerant suction pressure in the cylinder bore 11a and the pressure in the crank chamber 14. A control valve 28 for operatively communicating the seal 21 is provided.

이와 같이 이루어진 종래의 가변형 사판식 압축기(10)는, 도 1에 도시된 바와 같이, 크랭크실(14)내의 압력과 실린더보어(11a)내의 흡입 압과의 차압에 대응하여 사판(17)의 경사각이 조절됨으로써 상기 사판(17)의 경사각 변화에 의해 상기 사판(17)에 연결된 피스톤(19)의 행정거리가 변화하여 압축기의 토출용량이 가변된다.In the conventional variable swash plate type compressor 10 configured as described above, as shown in FIG. 1, the inclination angle of the swash plate 17 corresponds to the pressure difference between the pressure in the crank chamber 14 and the suction pressure in the cylinder bore 11a. By this adjustment, the stroke distance of the piston 19 connected to the swash plate 17 is changed by the change of the inclination angle of the swash plate 17, so that the discharge capacity of the compressor is varied.

그러나, 상기한 종래의 가변형 사판식 압축기는 사판이 구동축에서 경사각이 변화할 때에 힌지핀이 러그 플레이트의 동력전달용 돌기에 직선 가공된 힌지홀을 따라 이동하므로 상기 힌지홀의 내주면에서 과도한 마찰이 발생하게 되는 문제점이 있었다.However, in the conventional variable swash plate type compressor, when the swash plate changes in the inclination angle of the drive shaft, the hinge pin moves along the hinge hole linearly processed in the power transmission protrusion of the lug plate, thereby causing excessive friction on the inner circumferential surface of the hinge hole. There was a problem.

또한, 러그 플레이트의 설치로 인하여 구조가 복잡해 질뿐만 아니라 압축기의 무게가 증대되고, 길이가 길어지는 등의 문제점이 있었다. In addition, due to the installation of the lug plate, not only the structure is complicated, but the weight of the compressor is increased, and there is a problem of lengthening.

본 발명은 상술한 문제점을 해소하기 위해 안출된 것으로, 사판의 일단면에 지지용돌기를 형성하고, 전방하우징의 내측면에는 상기 지지용돌기와 지지가능한 지지용 돌출부재를 설치함으로써, 사판의 경사가 변화될 때 발생하는 불가피한 마찰을 감소시킬 수 있을 뿐만 아니라, 러그 플레이트를 사용하지 않기 때문에 그 구조가 간단하고, 무게감소와 함께 압축기의 길이도 단축시킬 수 있도록 한 가변형 사판식 압축기를 제공함에 그 목적이 있다. The present invention has been made in order to solve the above problems, by forming a support projection on one end surface of the swash plate, and by installing the support projection and a supportable support protrusion member on the inner surface of the front housing, the inclination of the swash plate In addition to reducing the inevitable friction that occurs when changing, and because it does not use a lug plate, its structure is simple, and a variable swash plate type compressor that can shorten the length of the compressor with weight reduction is provided. There is this.

상술한 목적을 달성하기 위한 본 발명은, 복수개의 실린더보어를 갖는 실린더블록과; 상기 실린더블록의 실린더보어에 각각 왕복운동 가능하게 수용되는 피스톤과; 상기 실린더블록의 전,후방에 각각 밀폐가능하게 결합되는 전,후방하우징과; 상기 전방하우징의 중심에 회전가능하게 지지되는 구동축과; 상기 구동축에 관통되게 설치되며, 상기 피스톤을 실린더보어 내에서 왕복운동시키기 위해 구비되는 사판으로 구성된 가변형 사판식 압축기에 있어서, 상기 구동축의 동력전달부를 삽입 관통시키기 위해 대응되는 단면형상의 관통공이 중앙부에 형성됨과 아울러, 일측면에는 적어도 하나 이상의 지지용돌기가 돌출 형성된 사판과; 상기 후방하우징의 내측면에 상기 지지용돌기를 지지하도록 구비되는 원추형상의 지지용 돌출부재;를 포함하여 이루어진 것을 특징으로 한다.The present invention for achieving the above object is a cylinder block having a plurality of cylinder bores; Pistons reciprocally received in the cylinder bores of the cylinder block, respectively; Front and rear housings that are hermetically coupled to the front and rear of the cylinder block, respectively; A drive shaft rotatably supported at the center of the front housing; In the variable swash plate type compressor consisting of a swash plate installed to penetrate the drive shaft and provided to reciprocate the piston in the cylinder bore, a through-hole having a cross-sectional shape corresponding to penetrating the power transmission portion of the drive shaft is provided at the center thereof. In addition, the swash plate formed with at least one support protrusion protruding from one side; And a conical support protrusion member provided to support the support protrusion on the inner side of the rear housing.

또한, 상기 지지용돌기의 끝단면에는 삽입홈이 각각 형성되고, 상기 삽입홈에는 상기 지지용 돌출부재와 접촉되어 구름운동가능한 볼부재가 더 구비됨을 특징으로 한다,In addition, inserting grooves are formed on end surfaces of the supporting protrusions, respectively, and the insertion grooves are further provided with ball members capable of rolling movement in contact with the supporting protruding members.

또한, 상기 구동축의 동력전달부는, 상기 사판이 설치되는 위치의 양측면에 절취된 절취부를 형성한 것을 특징으로 한다.In addition, the power transmission portion of the drive shaft, characterized in that the cutouts formed on both sides of the position where the swash plate is installed.

또한, 상기 상기 지지용 돌출부재는, 그 중앙부가 관통된 원추형상의 단면을 갖는 스러스트 베어링(thrust bearing)인 것을 특징으로 한다.The support protruding member may be a thrust bearing having a conical cross section through a central portion thereof.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 보다 상세하게 설명한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2 및 도 3은 본 발명의 따른 가변형 사판식 압축기를 도시한 도면으로서, 가변형 사판식 압축기(100)는, 내주면에 길이 방향을 따라 평행하게 형성된 복수개의 실린더보어(110a)를 갖는 실린더블록(110)과, 상기 실린더블록(110)의 전방에 크랭크실(130a)을 갖도록 밀폐 결합된 전방하우징(120)과, 상기 실린더블록(110)의 후방에 밸브 플레이트(121)를 개재하여 밀폐 결합된 후방하우징(130)과, 상기 전방하우징(120)의 중심에 회전가능하게 지지되는 구동축(140)과, 상기 구동축(140)에 그 각도가 가변가능하게 설치되는 사판(150)과, 상기 전방하우징(120)의 내측면에 설치되며, 상기 사판(150)의 경사각이 가변될 때 상기 사판(150)을 지지하기 위해 설치되는 지지용 돌출부재(160)와, 상기 구동축(140)에 끼워져 상기 사판(150)을 지지용 돌출부재(160)로부터 탄성적으로 지지하는 스프링(170)과, 상기 사판(150)에 원주방향으로 슈(182)를 개재하여 슬라이드 가능하게 연결되어 상기 실린더블록(110)의 각 실린더보어(110a) 내를 왕복운동하는 피스톤(180)으로 이루어진다(도 3 참조). 2 and 3 is a view showing a variable swash plate compressor according to the present invention, the variable swash plate compressor 100, the cylinder block having a plurality of cylinder bores (110a) formed in parallel in the longitudinal direction on the inner peripheral surface ( 110, the front housing 120 is hermetically coupled to have a crank chamber (130a) in front of the cylinder block 110, and the valve plate 121 is hermetically coupled via a valve plate 121 at the rear of the cylinder block (110) A rear housing 130, a drive shaft 140 rotatably supported at the center of the front housing 120, a swash plate 150 that is variably installed at the drive shaft 140, and the front housing Is installed on the inner side of the 120, when the inclination angle of the swash plate 150 is variable to support the projecting member 160 is installed to support the swash plate 150, the drive shaft 140 is fitted to the swash plate Elastically supporting the 150 from the support protrusion member 160 The piston 170 is slidably connected to the swash plate 150 via the shoe 182 in the circumferential direction and reciprocates in each cylinder bore 110a of the cylinder block 110. (See FIG. 3).

상기한 후방하우징(130)에는 흡입실(122)과 배출실(123)이 각각 형성되어 있으며, 밸브 플레이트(121)에는 각 실린더보어(110a)에 대응하는 곳에 흡입구(121a)와 배출구(121b)가 각각 형성된다.The rear housing 130 has a suction chamber 122 and a discharge chamber 123, respectively, and the valve plate 121 has a suction port 121a and a discharge port 121b at a position corresponding to each cylinder bore 110a. Are each formed.

또한, 상기한 밸브 플레이트(121)에 형성된 흡입구(121a) 및 배출구(121b)에는 상기 피스톤(180)의 왕복운동에 따른 압력변화에 의하여 상기 흡입구(121a)와 배출구(121b)를 개폐시키기 위한 흡입리드(124)와 배출리드(125)가 각각 구비된다.In addition, the suction port 121a and the discharge port 121b formed in the valve plate 121 may be sucked to open and close the suction port 121a and the discharge port 121b by a pressure change due to the reciprocating motion of the piston 180. A lead 124 and a discharge lead 125 are respectively provided.

그 밖의 구성은 대략 앞에서 설명한 종래기술과 동일하므로, 여기서는 중복 설명을 피하기 위하여 그 설명을 생략한다. Since other configurations are substantially the same as the prior art described above, the description is omitted here to avoid redundant description.

본 발명에 따른 가변형 사판식 압축기의 구동축(140)은, 도 2에 도시된 바와 같이 상기 사판(150)측으로 구동력 즉, 회전력을 전달시키도록 외주면에는 그 양측면이 절취된 절취면(142a)을 갖는 동력전달부(142)가 형성된다.The drive shaft 140 of the variable swash plate compressor according to the present invention, as shown in Figure 2 has a cutting surface (142a) is cut on both sides of the outer peripheral surface to transmit the driving force, that is, the rotational force toward the swash plate 150 side Power transmission unit 142 is formed.

상기 사판(150)은, 그 중앙부에 상기 구동축(140)의 동력전달부(142)를 삽입 관통시키기 위해 대응되는 단면형상의 관통공(150a)을 형성함과 아울러, 일단면 즉, 상기 전방하우징(120)의 내측면에 대향되는 면에는 상기 사판(150)의 경사각이 가변될 때, 사판(150)이 볼부재(190)를 개재시켜 상기 지지용 돌출부재(160)에 지지될 수 있도록 외향 돌출된 지지용돌기(152)가 적어도 하나 이상 돌출 형성되되, 상기 지지용돌기(152)의 끝단면에는 상기 볼부재(190)를 구름운동 가능하게 삽입시키기 위한 삽입홈이 각각 형성된다.The swash plate 150 forms a through-hole 150a having a cross-sectional shape corresponding to the insertion of the power transmission unit 142 of the drive shaft 140 at the center thereof, and has one end surface, that is, the front housing. When the inclination angle of the swash plate 150 is variable on the surface opposite to the inner surface of the 120, the swash plate 150 is outward so that it can be supported by the support protrusion member 160 via the ball member 190. At least one protruding support protrusion 152 is formed to protrude, and end grooves of the support protrusion 152 are formed with insertion grooves for inserting the ball member 190 in a rolling motion.

그리고, 상기 관통공(150a)의 내측면에는, 도 3에 도시된 바와 같이, 상기 사판(150)을 지지용 돌출부재(160)에 대하여 탄성적으로 지지하는 스프링(170)을 고정하기 위한 단턱부(150b)가 형성되고, 그 내측면 즉, 상기 구동축(140)의 절취면(142a)의 저면에 대응되는 관통공(150a)의 내측면에는 상기 사판(150)이 경사질 때 그 최대경사각을 결정하기 위한 최대경사각 결정면(150c)이 형성된다. And, as shown in Figure 3, the inner side of the through hole 150a, the stage for fixing the spring 170 for elastically supporting the swash plate 150 with respect to the support projecting member 160 The jaw portion 150b is formed, and the maximum inclination angle when the swash plate 150 is inclined on the inner surface thereof, that is, the inner surface of the through hole 150a corresponding to the bottom surface of the cutting surface 142a of the drive shaft 140. The maximum inclination angle crystal plane 150c is formed to determine.

상기 지지용 돌출부재(160)는, 상기 사판(150)이 회전과 함께 경사질 때, 지지용돌기(152)의 삽입홈에 삽입된 볼부재(190)와의 마찰을 최소화하기 위해 설치되는 것으로, 도 2 내지 도 4에 도시된 바와 같이, 그 중앙부가 상기 구동축(140)을 관통시키도록 관통된 원추형상의 단면을 갖는 스러스트 베어링(thrust bearing)으로 구성된다.The support protrusion member 160 is installed to minimize friction with the ball member 190 inserted into the insertion groove of the support protrusion 152 when the swash plate 150 is inclined with rotation, As shown in Figures 2 to 4, the central portion is composed of a thrust bearing having a conical cross section penetrated to penetrate the drive shaft 140.

한편, 위에서는 지지용 돌출부재(160)로 스러스트 베어링이 사용된 것을 예로 들었으나, 본 발명은 이에 한정되는 것은 아니며, 상기 지지용 돌출부재(160)를 전방하우징(120)의 내측면에 일체로 형성할 수도 있고, 또 도 5에 도시된 바와 같이, 별도로 형성된 원추형상의 돌출부재(160')를 전방하우징(120)의 내측면에 설치할 수도 있다.Meanwhile, although the thrust bearing is used as the support protrusion member 160 as an example, the present invention is not limited thereto, and the support protrusion member 160 is integrated with the inner surface of the front housing 120. Alternatively, as illustrated in FIG. 5, a separately formed conical protrusion member 160 ′ may be installed on the inner surface of the front housing 120.

아울러, 상기 볼부재가 배제된 지지용돌기가 스러스트 베어링을 구성되거나 또는 별도로 형성된 원추형상의 돌출부재와 직접 접촉하여 지지되도록 구성할 수도 있다.In addition, the support protrusion for which the ball member is excluded may be configured to support the thrust bearing directly or in direct contact with a conical protrusion member formed separately.

이와 같이 이루어진 본 발명에 따른 가변형 사판식 압축기(100)의 작동관계에 대하여 도 2 내지 도 4를 참조하여 설명하면, 구동축(140)이 회전하게 되면, 사판(150)은 관통공(150a)에 삽입된 동력전달부(142)에 의해 회전력을 전달받아 회전운동하게 된다. 여기서, 상기 사판(150)은 지지용돌기(152)에 삽입된 볼부재(190)에 의해 전방하우징(120)의 내측면에 설치된 지지용 돌출부재(160)인 스러스트 베어링의 전단면에 지지되는 한편, 스프링(170)에 의해 그 자세를 유지하면서 회전하게 된다.Referring to Figures 2 to 4 with respect to the operation of the variable swash plate compressor 100 according to the present invention made as described above, when the drive shaft 140 is rotated, the swash plate 150 is in the through hole (150a) The rotary power is received by the inserted power transmission unit 142 to rotate. Here, the swash plate 150 is supported on the front end surface of the thrust bearing which is the support protrusion member 160 installed on the inner side of the front housing 120 by the ball member 190 inserted into the support protrusion 152. On the other hand, the spring 170 is rotated while maintaining the posture.

다음, 크랭크실(130a)의 압력과 흡입압과의 차압에 의해 사판(150)이 경사지게 되면, 상기 사판(150)은 구동축(140)상에서 회전과 함께 경사각이 가변되게 되는데, 이때에는 상기 사판(150)의 경사각이 커짐에 따라, 상기 사판(150)의 지지용돌기(152)의 끝단면에 구름운동가능하게 삽입된 볼부재(190)가 전방하우징(120)의 내측면에 설치된 스러스트 베어링의 전단면을 따라 그 외측 방향으로 이동하면서 회전하게 된다.Next, when the swash plate 150 is inclined by the pressure difference between the pressure of the crank chamber 130a and the suction pressure, the swash plate 150 is rotated on the drive shaft 140 and the inclination angle is variable, in which case the swash plate ( As the inclination angle of the 150 is increased, the ball member 190 is inserted into the end surface of the support protrusion 152 of the swash plate 150 so as to enable rolling motion of the thrust bearing installed on the inner side of the front housing 120. It rotates while moving outward along the shear plane.

한편, 상기 사판(150)의 경사각이 최대일 때는, 관통공(150a)의 내측면에 형성된 최대경사각 결정면(151c)이 구동축(140)의 동력전달부(142)에 접촉하게 된다.On the other hand, when the inclination angle of the swash plate 150 is the maximum, the maximum inclination angle determination surface 151c formed on the inner surface of the through hole 150a is in contact with the power transmission unit 142 of the drive shaft 140.

이상 설명한 바와 같이, 본 발명에 따른 가변형 사판식 압축기는, 사판의 일측면에 돌출된 지지용돌기에 구름운동가능하게 삽입되는 볼부재가 전방하우징의 내측면에 설치된 지지용 돌출부재인 스러스트 베어링과 접촉됨으로써, 사판이 회전과 함께 그 경사각이 가변될 때, 상기 볼부재와 스러스트 베어링에 의해 마찰을 최소화시킬 수 있는 효과가 있다.As described above, the variable swash plate compressor according to the present invention, the ball member is inserted into the support projection protruding on one side of the swash plate in contact with the thrust bearing which is a support projection member installed on the inner side of the front housing. As a result, when the inclination angle of the swash plate changes with rotation, there is an effect of minimizing friction by the ball member and the thrust bearing.

또한, 본 발명은 종래와 같이 사판측으로 동력을 전달시킴과 아울러 사판을 지지하기 위해 구비되는 러그 플레이트를 배제시킴으로써, 압축기의 구조를 간단하게 할 수 있을 뿐만 아니라, 무게감소와 함께 압축기의 길이도 단축시킬 수 있는 효과가 있다.In addition, the present invention not only simplifies the structure of the compressor, but also reduces the weight and shortens the length of the compressor by transmitting power to the swash plate and removing the lug plate provided to support the swash plate. It can be effected.

도 1은, 종래의 일반적인 가변형 사판식 압축기를 도시한 단면도.1 is a cross-sectional view showing a conventional general variable swash plate compressor.

도 2는, 본 발명의 제1실시예에 따른 가변형 사판식 압축기의 일부를 도시한 분리사시도.Figure 2 is an exploded perspective view showing a part of the variable swash plate compressor according to the first embodiment of the present invention.

도 3은, 도 2에 도시된 가변형 사판식 압축기를 Figure 3 is a variable swash plate compressor shown in FIG.

도시한 결합단면도.Combined cross section shown.

도 4는, 본 발명의 제2실시예에 따른 가변형 사판식 압축기를 도시한 결합단면도.Figure 4 is a cross-sectional view showing a variable swash plate compressor according to a second embodiment of the present invention.

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

100 : 사판식 압축기 110 : 실린더보어100: swash plate compressor 110: cylinder bore

120 : 전방하우징 130 : 후방하우징120: front housing 130: rear housing

140 : 구동축 150 : 사판140: drive shaft 150: swash plate

160 : 지지용 돌출부재 170 : 스프링160: support protrusion member 170: spring

180 : 피스톤 190 : 볼부재180: piston 190: ball member

Claims (7)

복수개의 실린더보어(110a)를 갖는 실린더블록(110)과; 상기 실린더블록(110)의 실린더보어(110a)에 각각 왕복운동 가능하게 수용되는 피스톤(180)과; 상기 실린더블록(110)의 전,후방에 각각 밀폐가능하게 결합되는 전,후방하우징(120,130)과; 상기 전방하우징(120)의 중심에 회전가능하게 지지되는 구동축(140)과; 상기 구동축(140)에 관통되게 설치되며, 상기 피스톤(180)을 실린더보어(110a) 내에서 왕복운동시키기 위해 구비되는 사판(150)으로 구성된 가변형 사판식 압축기에 있어서,A cylinder block 110 having a plurality of cylinder bores 110a; A piston (180) accommodated in the cylinder bore (110a) of the cylinder block 110 so as to reciprocate, respectively; Front and rear housings 120 and 130 are hermetically coupled to the front and rear of the cylinder block 110, respectively; A drive shaft 140 rotatably supported at the center of the front housing 120; In the variable swash plate type compressor, which is installed to penetrate the drive shaft 140 and is provided with a swash plate 150 provided to reciprocate the piston 180 in the cylinder bore 110a. 상기 구동축(140)의 동력전달부(142)를 삽입 관통시키기 위해 대응되는 단면형상의 관통공(150a)이 중앙부에 형성됨과 아울러, 일측면에는 적어도 하나 이상의 지지용돌기(152)가 돌출 형성된 사판(150)과;A swash plate in which at least one support protrusion 152 protrudes from one side thereof is formed in the center of the through hole 150a having a cross-sectional shape corresponding to the power transmission unit 142 of the drive shaft 140. 150; 상기 후방하우징(130)의 내측면에 상기 지지용돌기(152)를 지지하도록 구비되는 원추형상의 지지용 돌출부재(160)와;A conical support protrusion member (160) provided to support the support protrusion (152) on the inner side of the rear housing (130); 를 포함하여 이루어진 것을 특징으로 하는 가변형 사판식 압축기.Variable swash plate compressor comprising a. 제1항에 있어서,The method of claim 1, 상기 지지용돌기(152)의 끝단면에는 삽입홈이 각각 형성되고, 상기 삽입홈에는 상기 지지용 돌출부재(160)와 접촉되어 구름운동가능한 볼부재(190)가 더 구비됨을 특징으로 하는 가변형 사판식 압축기.Insertion grooves are formed in the end surfaces of the support protrusion 152, respectively, and the insertion groove is a variable swash plate, characterized in that the ball member 190 is further provided in contact with the support protruding member 160, the rolling motion is provided. Type compressor. 제1항에 있어서,The method of claim 1, 상기 구동축(140)의 동력전달부(142)는, 상기 사판(150)이 설치되는 위치의 양측면에 절취된 절취부(142a)를 형성한 것을 특징으로 하는 가변형 사판식 압축기.The power transmission unit 142 of the drive shaft 140, the swash plate type compressor, characterized in that the cutouts (142a) formed on both sides of the position where the swash plate 150 is installed. 제3항에 있어서,The method of claim 3, 상기 사판(150)에는, 상기 절취면(142a)의 저면에 대응되는 관통공(150a)의 내측면에 최대경사각 결정면(150c)이 형성됨을 특징으로 하는 가변형 사판식 압축기.The swash plate 150, the variable swash plate type compressor, characterized in that the maximum inclination angle crystal surface (150c) is formed on the inner surface of the through hole (150a) corresponding to the bottom surface of the cutting surface (142a). 제1항에 있어서,The method of claim 1, 상기 사판(150)과 지지용 돌출부재(160) 사이의 구동축(140)에는 스프링(170)이 설치되는 것을 특징으로 하는 가변형 사판식 압축기.The drive shaft 140 between the swash plate 150 and the support projecting member 160, the spring 170 is installed, characterized in that the swash plate type compressor. 제1항 내지 제5항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 5, 상기 상기 지지용 돌출부재(160)는, 그 중앙부가 관통된 원추형상의 단면을 갖는 스러스트 베어링(thrust bearing)인 것을 특징으로 하는 가변형 사판식 압축기.The support projecting member (160) is a variable swash plate type compressor, characterized in that a thrust bearing having a conical cross section penetrated by a central portion thereof. 제1항 내지 제5항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 5, 상기 지지용 돌출부재(160)는, 상기 후방하우징(130)에 일체로 형성된 원추형상의 돌출부재인 것을 특징으로 하는 가변형 사판식 압축기.The support protrusion member 160 is a variable swash plate compressor, characterized in that the conical protrusion member formed integrally with the rear housing (130).
KR10-2003-0066210A 2003-09-24 2003-09-24 Variable Swash Plate Type Compressor KR100532137B1 (en)

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KR100532137B1 KR100532137B1 (en) 2005-12-01

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