KR100575830B1 - Oil supply apparatus for reciprocating compressor - Google Patents

Oil supply apparatus for reciprocating compressor Download PDF

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Publication number
KR100575830B1
KR100575830B1 KR1020030102306A KR20030102306A KR100575830B1 KR 100575830 B1 KR100575830 B1 KR 100575830B1 KR 1020030102306 A KR1020030102306 A KR 1020030102306A KR 20030102306 A KR20030102306 A KR 20030102306A KR 100575830 B1 KR100575830 B1 KR 100575830B1
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South Korea
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lubricating oil
piston
cylinder
frame
lubricant
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KR1020030102306A
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Korean (ko)
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KR20050071262A (en
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강양준
이경원
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엘지전자 주식회사
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    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0261—Hermetic compressors with an auxiliary oil pump
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0044—Pulsation and noise damping means with vibration damping supports
    • 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
    • F04B39/02—Lubrication
    • F04B39/0223—Lubrication characterised by the compressor type
    • F04B39/023—Hermetic compressors
    • F04B39/0238—Hermetic compressors with oil distribution channels
    • 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
    • F04B39/02—Lubrication
    • F04B39/0284—Constructional details, e.g. reservoirs in the casing
    • F04B39/0292—Lubrication of pistons or cylinders
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members

Abstract

본 발명은 왕복동식 압축기의 윤활유 공급 장치에 관한 것으로, 본 발명은 소정량의 윤활유를 채운 케이싱과, 케이싱의 내부에 탄력 지지하여 설치하고 왕복동모터를 고정 설치하며 왕복동모터의 가동자에 결합한 피스톤이 직선으로 왕복운동을 하도록 실린더를 구비하는 프레임과, 프레임의 하반부에 구비하여 함께 진동하는 윤활유실린더와, 윤활유실린더에 미끄러지게 삽입하여 프레임과 상대운동을 하면서 케이싱 내부의 윤활유를 펌핑하는 윤활유피스톤과, 윤활유피스톤의 양측을 탄력 지지하여 상기 윤활유피스톤에 탄성력을 공급하는 복수 개의 윤활유스프링과, 윤활유실린더의 전방측에 설치하여 윤활유의 흡입과 토출을 조절하는 윤활유밸브와, 윤활유밸브를 수용하여 상기 윤활유실린더의 전방측과 프레임에 구비한 윤활유로 사이를 연결하는 윤활유시트 및 윤활유커버를 포함한 왕복동식 압축기의 윤활유 공급 장치에 있어서, 윤활유실린더나 윤활유피스톤 또는 윤활유스프링 중에서 적어도 어느 하나는 비자성체로 형성함으로써, 윤활유피스톤이 윤활유실린더에 달라붙지 않고 원활하게 상대운동을 하여 케이싱 내부의 윤활유를 효과적으로 펌핑할 수 있고 이를 통해 압축유니트에 윤활유를 지속적으로 공급하여 압축기의 성능과 신뢰성을 함께 높일 수 있다.The present invention relates to a lubricating oil supply device for a reciprocating compressor, and the present invention provides a casing filled with a predetermined amount of lubricating oil, and a piston which is installed by elastically supporting the inside of the casing, fixedly installing the reciprocating motor, and coupled to the mover of the reciprocating motor. A frame having a cylinder to reciprocate in a straight line, a lubricating oil cylinder provided at the lower half of the frame and vibrating together, a lubricating oil piston which is slidably inserted into the lubricating oil cylinder and pumps the lubricating oil inside the casing while making relative movement with the frame; A plurality of lubricating oil springs that elastically support both sides of the lubricating oil piston to supply elastic force to the lubricating oil piston, a lubricating oil valve installed at the front side of the lubricating oil cylinder to control the intake and discharge of the lubricating oil, and the lubricating oil valve Between the front side of the engine and the lubricating oil passage provided in the frame In a lubricating oil supply device of a reciprocating compressor including a lubricating oil sheet and a lubricating oil cover, at least one of the lubricating oil cylinder, the lubricating oil piston, or the lubricating oil spring is formed of a non-magnetic material, so that the lubricating oil piston does not stick to the lubricating oil cylinder, so that the relative motion is smooth It can effectively pump the lubricating oil inside the casing, thereby increasing the performance and reliability of the compressor by continuously supplying lubricating oil to the compression unit.

Description

왕복동식 압축기의 윤활유 공급 장치{OIL SUPPLY APPARATUS FOR RECIPROCATING COMPRESSOR}Lubricant supply device for reciprocating compressors {OIL SUPPLY APPARATUS FOR RECIPROCATING COMPRESSOR}

도 1은 종래 왕복동식 압축기의 일례를 보인 단면도,1 is a cross-sectional view showing an example of a conventional reciprocating compressor,

도 2는 종래 왕복동식 압축기에서 윤활유피스톤의 동작상태를 보인 단면도,Figure 2 is a cross-sectional view showing the operating state of the lubricant oil piston in the conventional reciprocating compressor,

도 3은 본 발명 왕복동식 압축기의 요부를 보인 단면도,3 is a cross-sectional view showing the main portion of the reciprocating compressor of the present invention;

도 4는 본 발명 왕복동식 압축기에서 윤활유피스톤의 동작상태를 보인 단면도.Figure 4 is a cross-sectional view showing the operating state of the lubricant oil piston in the reciprocating compressor of the present invention.

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

10 : 케이싱 20 : 프레임유니트10 casing 20 frame unit

21 : 전방프레임 21a : 실린더삽입구멍21: front frame 21a: cylinder insertion hole

110 : 윤활유펌핑부 111 : 윤활유실린더110: lubricating oil pumping unit 111: lubricating oil cylinder

112 : 윤활유피스톤 113,114 : 윤활유스프링112: lubricant piston 113,114: lubricant spring

115 : 윤활유밸브 116 : 윤활유시트115: lubricating oil valve 116: lubricating oil seat

117 : 윤활유 덮개 118 : 윤활유 흡입관117: lubricant cover 118: lubricant suction pipe

119 : 실린더캡 120 : 윤활유 공급유로부119: cylinder cap 120: lubricating oil supply passage

본 발명은 왕복동식 압축기의 윤활유 공급 장치에 관한 것으로, 특히 윤활유펌핌부를 형성하는 각 부품을 비자성체로 제작하는 왕복동식 압축기의 윤활유 공급 장치에 관한 것이다.The present invention relates to a lubricating oil supply device for a reciprocating compressor, and more particularly, to a lubricating oil supply device for a reciprocating compressor for manufacturing each component forming the lubricating oil pumping part with a nonmagnetic material.

일반적으로 왕복동식 압축기는 피스톤이 선형으로 움직이면서 가스를 흡입 압축하는 것으로, 이러한 왕복동식 압축기는 크게 구동모터의 회전운동을 피스톤의 왕복운동으로 전환시켜 가스를 흡입 압축하는 방식과, 구동모터가 직선으로 왕복운동을 하면서 피스톤을 왕복운동시켜 가스를 흡입 압축하는 방식이 있다.In general, a reciprocating compressor suctions and compresses gas while the piston moves linearly. Such a reciprocating compressor converts the rotational motion of the drive motor into a reciprocating motion of the piston and sucks and compresses the gas. There is a method of inhaling and compressing gas by reciprocating the piston while reciprocating.

도 1은 후자에 속하는 종래 왕복동식 압축기의 일례를 보인 단면도로서, 이에 도시한 바와 같이 종래의 왕복동식 압축기는 저면에 일정량의 윤활유를 채우고 가스흡입관(SP) 및 가스토출관(DP)을 연통 설치하는 케이싱(10)과, 케이싱(10)의 내부에 탄력적으로 설치하는 프레임유니트(20)와, 프레임유니트(20)에 고정하여 가동자(33)가 직선으로 왕복운동을 하는 왕복동모터(30)와, 왕복동모터(30)의 가동자(33)에 피스톤(42)을 결합하여 상기한 프레임유니트(20)로 지지하는 압축유니트(40)와, 왕복동모터(30)의 가동자(33)와 압축유니트의 피스톤(42)을 운동방향으로 탄력 지지하여 공진운동을 유도하는 공진스프링유니트(50)와, 프레임유니트(20)에 장착하여 케이싱(10)의 윤활유를 압축유니트(40)의 미끄럼부로 펌핑하는 윤활유 공급유니트(60)로 구성하고 있다.Figure 1 is a cross-sectional view showing an example of a conventional reciprocating compressor belonging to the latter, as shown in the conventional reciprocating compressor is filled with a certain amount of lubricating oil on the bottom and communicating with the gas suction pipe (SP) and gas discharge pipe (DP) A casing 10, a frame unit 20 elastically installed in the casing 10, and a reciprocating motor 30 fixed to the frame unit 20 so that the mover 33 reciprocates linearly. And a compression unit 40 for coupling the piston 42 to the mover 33 of the reciprocating motor 30 and supporting the frame unit 20 with the mover 33 of the reciprocating motor 30. The resonant spring unit 50 for elastically supporting the piston 42 of the compression unit in the movement direction to induce the resonant motion, and the lubricating oil of the casing 10 to the sliding portion of the compression unit 40 by being mounted on the frame unit 20. It consists of the lubricating oil supply unit 60 to pump.

프레임유니트(20)는 압축유니트(40)를 지지하고 왕복동모터(30)의 전방측을 지지하는 전방프레임(21)과, 전방프레임(21)에 결합하여 왕복동모터(30)의 후방측 을 지지하는 중간프레임(22)과, 중간프레임(22)에 결합하여 공진스프링유니트(60)를 지지하는 후방프레임(23)으로 이루어져 있다.The frame unit 20 supports the compression unit 40 and supports the front frame 21 supporting the front side of the reciprocating motor 30, and is coupled to the front frame 21 to support the rear side of the reciprocating motor 30. The intermediate frame 22 and the rear frame 23 is coupled to the intermediate frame 22 to support the resonant spring unit 60.

왕복동모터(30)는 전방프레임(21)과 중간프레임(22) 사이에 설치하는 외측고정자(31)와, 외측고정자(31)와 일정 간격을 두고 결합하여 전방프레임(21)에 고정한 실린더(41)에 삽입 설치하는 내측고정자(32)와, 외측고정자(31)와 내측고정자(32) 사이에 설치하여 직선으로 왕복운동을 하는 가동자(33)로 이루어져 있다.The reciprocating motor 30 has an outer stator 31 installed between the front frame 21 and the intermediate frame 22 and a cylinder 41 fixed to the front frame 21 by being coupled to the outer stator 31 at a predetermined interval. The inner stator 32 is inserted into and installed in the c), and the mover 33 is installed between the outer stator 31 and the inner stator 32 to reciprocate in a straight line.

압축유니트(40)는 전방프레임(21)에서 고정 설치하는 실린더(41)와, 왕복동모터(30)의 가동자(33)에 결합하여 실린더(41)의 압축공간(P)에서 왕복운동을 하는 피스톤(42)과, 피스톤(42)의 선단에 장착하여 그 피스톤(42)의 흡입유로(F)를 개폐하면서 냉매가스의 흡입을 제한하는 흡입밸브(43)와, 실린더(41)의 토출측에 장착하여 압축공간(P)을 개폐하면서 압축가스의 토출을 제한하는 토출밸브(44)와, 토출밸브(44)를 탄력적으로 지지하는 밸브스프링(45)과, 토출밸브(44)와 밸브스프링(45)을 수용하도록 실린더(42)의 토출측을 복개하여 전방프레임(21)에 고정하는 토출커버(46)로 이루어져 있다.The compression unit 40 is coupled to the cylinder 41 fixedly installed at the front frame 21 and the mover 33 of the reciprocating motor 30 to reciprocate in the compression space P of the cylinder 41. On the inlet valve 43 and the discharge side of the cylinder 41, which are attached to the piston 42 and the tip of the piston 42 to restrict the intake of the refrigerant gas while opening and closing the inlet flow path F of the piston 42. And a discharge valve 44 for restricting the discharge of the compressed gas while opening and closing the compression space P, a valve spring 45 for elastically supporting the discharge valve 44, a discharge valve 44 and a valve spring ( A discharge cover 46 which covers the discharge side of the cylinder 42 to accommodate the 45 and is fixed to the front frame 21.

공진스프링유니트(50)는 가동자(33)와 피스톤(42)의 연결부에 결합하는 스프링지지대(51)와, 스프링지지대(51)의 전방측을 지지하는 전방측 공진스프링(52)과, 스프링지지대(51)의 후방측을 지지하는 후방측 공진스프링(53)으로 이루어져 있다.The resonant spring unit 50 includes a spring support 51 coupled to the connecting portion of the mover 33 and the piston 42, a front resonant spring 52 supporting the front side of the spring support 51, and a spring. It consists of a rear side resonance spring 53 for supporting the rear side of the support 51.

윤활유 공급유니트(60)는 프레임유니트(20)의 하반부에 장착하여 그 프레임유니트(20)와 함께 진동하면서 케이싱(10)의 윤활유를 펌핑하는 윤활유펌핑부(61) 와, 윤활유펌핑부(61)의 출구측과 압축유니트(40)를 연통하도록 상기한 프레임유니트(20)에 형성하는 윤활유로부(62)로 이루어져 있다.The lubricating oil supply unit 60 is mounted on the lower half of the frame unit 20 and vibrates with the frame unit 20 while pumping the lubricating oil of the casing 10 and the lubricating oil pumping unit 61. It consists of a lubrication flow path portion 62 formed in the frame unit 20 so as to communicate the outlet side of the compression unit (40).

윤활유펌핑부(61)는 도 1 내지 도 2에서와 같이 전방프레임(21)의 하반부에 삽입하여 장착하는 윤활유실린더(61A)와, 윤활유실린더(61A)의 내부에 미끄러지게 삽입하여 윤활유를 펌핑하는 윤활유피스톤(61B)과, 윤활유피스톤(61B)의 양단을 탄력 지지하는 제1 윤활유스프링(61C) 및 제2 윤활유스프링(61D)과, 전방프레임(21)의 전면에 설치하여 윤활유실린더(61A)와 윤활유로부(62) 사이를 개폐하는 윤활유밸브(61E)와, 윤활유밸브(61E)를 수용하는 동시에 윤활유실린더(61A)와 윤활유로부(62)를 연통하는 윤활통로(61a)를 구비하여 상기 전방프레임(21)의 전면에 고정 설치하는 윤활유시트(61F) 및 윤활유커버(61G)로 이루어져 있다.Lubricating oil pumping part 61 is inserted into the lower half of the front frame 21, as shown in Figs. 1 and 2 and the lubricant cylinder 61A to be inserted into the lubricating oil cylinder (61A) to pump the lubricant. A lubricant oil cylinder 61B, a first lubricant spring 61C and a second lubricant spring 61D for elastically supporting both ends of the lubricant piston 61B, and a front surface of the front frame 21 are installed in a lubricant cylinder 61A. And a lubricating oil valve 61E for opening and closing between the lubricating oil passage 62 and a lubricating passage 61a for accommodating the lubricating oil valve 61E and communicating with the lubricating oil cylinder 61A and the lubricating oil passage 62. It consists of a lubricating oil sheet (61F) and a lubricating oil cover (61G) fixed to the front of the front frame 21.

도면중 미설명 부호인 21a는 실린더삽입구멍, 61H는 윤활유흡입관, 61J는 윤활유캡, C는 권선코일, M은 마그네트, P는 압축공간이다.In the figure, reference numeral 21a denotes a cylinder insertion hole, 61H denotes a lubricant suction pipe, 61J denotes a lubricant cap, C denotes a winding coil, M denotes a magnet, and P denotes a compression space.

상기와 같은 종래 왕복동식 압축기는 다음과 같이 동작한다.The conventional reciprocating compressor as described above operates as follows.

즉, 왕복동모터(30)에 전원을 인가하여 외측고정자(31)와 내측고정자(32) 사이에 플럭스(flux)를 형성하면, 그 외측고정자(31)와 내측고정자(32) 사이의 공극에 놓인 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링유니트(50)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 압축공간(P)의 체적이 변화하여 냉매가스를 압축공간(P)으로 흡입 압축하였다가 토출하는 일련의 과정을 반복한다.That is, when a flux is formed between the outer stator 31 and the inner stator 32 by applying power to the reciprocating motor 30, the gap between the outer stator 31 and the inner stator 32 lies in the gap. As the mover 33 moves in the direction of the flux, the resonant spring unit 50 continuously reciprocates, and the piston 42 reciprocates in the cylinder 41 while the compression space P The volume of is changed and a series of processes of suction and compression of the refrigerant gas into the compression space (P) is repeated.

이때, 프레임유니트(20)와 함께 진동하는 윤활유펌핑부(61)의 윤활유피스톤(61B)이 윤활유실린더(61A)의 내부에서 상대운동을 하면서 케이싱(10) 내부의 윤활유를 펌핑하고, 이 윤활유는 윤활유흡입관(61H)을 통해 윤활유시트(61F)와 윤활유커버(61G)의 윤활통로(61a)로 흡입되어 윤활유밸브(61E)를 통해 윤활유로부(62)를 통과하면서 압축유니트(40)의 미끄럼부로 공급되었다가 다시 케이싱(10)으로 회수되는 것이었다.At this time, the lubricating oil piston 61B of the lubricating oil pumping unit 61 vibrating together with the frame unit 20 pumps the lubricating oil inside the casing 10 while making a relative movement in the lubricating oil cylinder 61A. It is sucked into the lubrication passage 61a of the lubricating oil sheet 61F and the lubricating oil cover 61G through the lubricating oil suction pipe 61H, and passes through the lubricating oil passage 62 through the lubricating oil valve 61E, thereby sliding the compression unit 40. It was supplied to the negative and then returned to the casing (10).

그러나, 상기와 같은 종래 왕복동식 압축기의 윤활유 공급 장치에 있어서는, 윤활유펌핑부(61)를 이루는 윤활유실린더(61A)와 윤활유피스톤(61B) 그리고 윤활유스프링(61C)(61D)을 자성체로 형성함에 따라 왕복동모터(30)에서 발생하는 자력(magnetic force)이 상기한 윤활유펌핑부(61)의 상기한 각 부품(61A)(61B)(61C)(61D)들로 전달되고 이로 인해 윤활유실린더(61A)나 윤활유피스톤(61B) 또는 윤활유스프링(61C)(61D)이 도 2에서와 같이 아랫쪽에 틈새(t)만큼 이격되면서 왕복동모터(30) 쪽으로 서로 달라붙어 상기한 윤활유피스톤(61B)의 거동이 불안정하게 되면서 윤활유의 펌핑량이 감소하는 문제점이 있었다.However, in the lubricating oil supply device of the conventional reciprocating compressor as described above, the lubricating oil cylinder 61A, the lubricating oil piston 61B, and the lubricating oil spring 61C, 61D constituting the lubricating oil pumping part 61 are formed of magnetic material. Magnetic force generated in the reciprocating motor 30 is transmitted to each of the above-described parts 61A, 61B, 61C, 61D of the lubricating oil pumping part 61, thereby causing the lubricating oil cylinder 61A. B. Lubricating oil piston 61B or lube oil spring 61C, 61D are stuck to each other toward the reciprocating motor 30 while being spaced apart by a gap t at the lower side as shown in FIG. There was a problem that the pumping amount of the lubricating oil is reduced.

본 발명은 상기와 같은 종래 왕복동식 압축기의 윤활유 공급 장치가 가지는 문제점을 감안하여 안출한 것으로, 왕복동모터에서 발생하는 자력이 윤활유펌핑부로 전달되는 것을 차단하여 윤활유피스톤이 원활하게 펌핑동작을 할 수 있도록 하는 왕복동식 압축기의 윤활유 공급 장치를 제공하려는데 본 발명의 목적이 있다.The present invention has been made in view of the problems of the lubricating oil supply device of the conventional reciprocating compressor as described above, by preventing the magnetic force generated in the reciprocating motor to be transmitted to the lubricating oil pumping unit so that the lubricating oil piston can be pumped smoothly. It is an object of the present invention to provide a lubricating oil supply device of a reciprocating compressor.

본 발명의 목적을 달성하기 위하여, 소정량의 윤활유를 채운 케이싱과, 케이싱의 내부에 탄력 지지하여 설치하고 왕복동모터를 고정 설치하며 왕복동모터의 가동자에 결합한 피스톤이 직선으로 왕복운동을 하도록 실린더를 구비하는 프레임과, 프레임의 하반부에 구비하여 함께 진동하는 윤활유실린더와, 윤활유실린더에 미끄러지게 삽입하여 프레임과 상대운동을 하면서 케이싱 내부의 윤활유를 펌핑하는 윤활유피스톤과, 윤활유피스톤의 양측을 탄력 지지하여 상기 윤활유피스톤에 탄성력을 공급하는 복수 개의 윤활유스프링과, 윤활유실린더의 전방측에 설치하여 윤활유의 흡입과 토출을 조절하는 윤활유밸브와, 윤활유밸브를 수용하여 상기 윤활유실린더의 전방측과 프레임에 구비한 윤활유로 사이를 연결하는 윤활유시트 및 윤활유커버를 포함한 왕복동식 압축기의 윤활유 공급 장치에 있어서, 윤활유실린더나 윤활유피스톤 또는 윤활유스프링이나 윤활유밸브 중에서 적어도 어느 하나는 비자성체로 형성하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치를 제공한다.In order to achieve the object of the present invention, a cylinder filled with a predetermined amount of lubricating oil, and the piston is elastically supported and installed in the casing and fixed to the reciprocating motor and the piston coupled to the actuator of the reciprocating motor to reciprocate in a straight line The frame provided, the lubricant cylinder vibrating together at the lower half of the frame, the lubricant piston slidingly inserted into the lubricant cylinder to pump the lubricant inside the casing while moving relative to the frame, and both sides of the lubricant piston are elastically supported. A plurality of lubricating oil springs for supplying elastic force to the lubricating oil piston, a lubricating oil valve installed at the front side of the lubricating oil cylinder to control suction and discharge of the lubricating oil, and a lubricating oil valve provided at the front side and the frame of the lubricating oil cylinder. Lubricant sheet and lube cover In the lubricant supply device of a reciprocating compressor, the lubricating oil from the at least one cylinder and a piston lubricant or the lubricating oil or lubricating the valve spring provides a lubricant supply device of the reciprocating compressor, characterized in that for forming a non-magnetic material.

또, 앞에서 윤활유실린더나 윤활유피스톤 또는 윤활유스프링이나 윤활유밸브 중에서 적어도 어느 하나는 그 외표면을 비자성체물질로 코팅하여 형성하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치를 제공한다.In addition, at least any one of the lubricating oil cylinder, the lubricating oil piston, the lubricating oil spring, and the lubricating oil valve is provided by coating the outer surface with a nonmagnetic material to provide a lubricating oil supply device for a reciprocating compressor.

이하, 본 발명에 의한 왕복동식 압축기의 윤활유 공급 장치를 첨부도면에 도시한 일실시예에 의거하여 상세하게 설명한다.
도 3은 본 발명 왕복동식 압축기의 요부를 보인 단면도이고, 도 4는 본 발명 왕복동식 압축기에서 윤활유피스톤의 동작상태를 보인 단면도이다.EMBODIMENT OF THE INVENTION Hereinafter, the lubricating oil supply apparatus of the reciprocating compressor by this invention is demonstrated in detail based on one Example shown in an accompanying drawing.
Figure 3 is a cross-sectional view showing the main part of the reciprocating compressor of the present invention, Figure 4 is a cross-sectional view showing the operating state of the lubricant piston in the reciprocating compressor of the present invention.

삭제delete

도 1을 참조하면 본 발명에 의한 윤활유 공급 장치를 구비한 왕복동식 압축 기는, 소정량의 윤활유를 채운 케이싱(10)의 내부에 전방프레임(21)과 중간프레임(22) 그리고 후방프레임(23)을 서로 연결하여 탄력적으로 지지 설치하고, 전방프레임(21)과 중간프레임(22)의 사이에는 외측고정자(31)와 내측고정자(32) 그리고 두 고정자(31)(32) 사이에서 직선으로 왕복운동을 하는 가동자(33)로 된 왕복동모터(30)를 설치하며, 왕복동모터(30)의 내측고정자(32) 안쪽에는 전방프레임(21)에 고정하는 실린더(41)와 그 실린더(41)에 미끄러지게 삽입하여 왕복동모터(30)의 가동자(33)와 함께 직선으로 왕복운동을 하는 피스톤(42) 그리고 그 피스톤(42)의 흡입유로(F)를 개폐하는 흡입밸브(43)와 실린더(41)의 토출측을 개폐하는 토출밸브(44)를 설치하고, 중간프레임(22)과 후방프레임(23)의 사이에는 상기 왕복동모터(30)의 가동자(33)와 피스톤(42)을 탄력적으로 지지하여 공진운동을 유도하도록 전방측 공진스프링(52)과 후방측 공진스프링(53)을 설치하며, 전방프레임(21)과 중간프레임(22)의 사이에는 케이싱(10)의 윤활유를 펌핑하여 전방프레임(21)의 윤활유로부(120)를 통해 실린더(41)와 피스톤(42) 사이로 공급하는 윤활유펌핑부(110)를 설치한다.Referring to FIG. 1, the reciprocating compressor including the lubricant supply device according to the present invention includes a front frame 21, an intermediate frame 22, and a rear frame 23 inside a casing 10 filled with a predetermined amount of lubricant. And elastically support each other by connecting them to each other, and reciprocating in a straight line between the outer stator 31 and the inner stator 32 and the two stators 31 and 32 between the front frame 21 and the intermediate frame 22. A reciprocating motor (30) made of a mover (33), which is fixed to the cylinder (41) and the cylinder (41) fixed to the front frame (21) inside the stator (32) of the reciprocating motor (30). A piston 42 and a cylinder in which the piston 42 reciprocates linearly with the mover 33 of the reciprocating motor 30, and opens and closes the suction flow path F of the piston 42. Discharge valve 44 for opening and closing the discharge side of 41 is provided, and the intermediate frame 22 and the rear frame 23 are provided. Between the front of the reciprocating motor 30, the front 33 and the rear side of the resonant spring (53) and the rear side resonant spring (53) are installed so as to elastically support the mover (33) and the piston (42) to induce a resonant movement. Lubricant pumping pumps the lubricating oil of the casing 10 between the frame 21 and the intermediate frame 22 to supply the cylinder 41 and the piston 42 through the lubricating oil passage 120 of the front frame 21. Install the unit 110.

윤활유펌핑부(110)는 전방프레임(21)의 하반부에 결합하는 윤활유실린더(111)와, 윤활유실린더(111)의 내부에 미끄러지게 삽입하는 윤활유피스톤(112)과, 윤활유피스톤(112)의 전후 양측에 배치하여 상기한 윤활유피스톤(112)이 프레임유니트(20)의 진동에 대해 상대운동을 하도록 탄력적으로 지지하는 제1 윤활유스프링(113) 및 제2 윤활유스프링(114)과, 전방프레임(21)의 전면에 설치하여 윤활유실린더(111)와 윤활유로부(120) 사이를 개폐하는 윤활유 밸브(115)와, 윤활유밸브(115)를 수용하는 동시에 윤활유실린더(111)와 윤활유로부(120)를 연통하는 윤활통로(110a)를 구비하여 상기 전방프레임(21)의 전면에 고정 설치하는 윤활유시트(116) 및 윤활유커버(117)로 이루어진다.The lubricating oil pumping unit 110 includes a lubricating oil cylinder 111 coupled to the lower half of the front frame 21, a lubricating oil piston 112 slidably inserted into the lubricating oil cylinder 111, and the front and rear of the lubricating oil piston 112. The first lubricant spring 113 and the second lubricant spring 114 and the front frame 21 which are disposed on both sides and elastically support the lubricant piston 112 so as to perform relative movement with respect to the vibration of the frame unit 20. Lubricating oil valve 115 and opening and closing between the lubricating oil cylinder 111 and the lubricating oil passage part 120, and receiving the lubricating oil valve 115, the lubricating oil cylinder 111 and the lubricating oil passage part 120. It is provided with a lubrication passage (110a) for communicating with the lubricating oil sheet 116 and the lubricating oil cover 117 fixedly installed on the front of the front frame (21).

윤활유실린더(111)는 스테인레스나 이와 유사한 비자성 물질을 원통모양으로 형성하거나 또는 자성물질을 원통모양으로 형성하되 그 외표면에 망간, 크롬, 니켈 등과 같은 비자성 물질을 입혀 비자성체로 형성한다.The lubricating oil cylinder 111 forms a stainless steel or similar nonmagnetic material in a cylindrical shape, or a magnetic material in a cylindrical shape, and forms a nonmagnetic material by coating a nonmagnetic material such as manganese, chromium, or nickel on its outer surface.

윤활유피스톤(112)은 윤활유실린더(111)와 같이 스테인레스나 이와 유사한 성질을 가지는 비자성물질을 원봉모양으로 형성하거나 또는 자성물질을 원봉모양으로 형성하되 그 외표면에 망간, 크롬, 니켈 등과 같은 비자성 물질을 입혀 비자성체로 형성한다.Lubricating oil piston 112 is formed of a non-magnetic material having a stainless steel or similar properties, such as a lubricant cylinder 111 in the shape of a rod or a magnetic material in the shape of a rod, but non-magnetic such as manganese, chromium, nickel, etc. It is coated with a sexual material to form a nonmagnetic material.

제1 윤활유스프링(113)과 제2 윤활유스프링(114)은 앞선 두 부재(111)(112)와 같이 스테인레스나 이와 유사한 성질을 가지는 비자성물질을 코일 형상으로 감아 압축코일스프링으로 형성하거나 또는 자성물질을 코일 형상으로 감아 압축코일스프링으로 형성하되 그 외표면에 망간, 크롬, 니켈 등과 같은 비자성 물질을 입혀 역시 비자성체로 형성한다.The first lubricating oil spring 113 and the second lubricating oil spring 114, like the two preceding members 111 and 112, are wound in a coil shape with a non-magnetic material having a stainless or similar property in a coil shape to form a compression coil spring, or magnetically. The material is wound into a coil shape to form a compressed coil spring, and a nonmagnetic material such as manganese, chromium and nickel is coated on the outer surface thereof to form a nonmagnetic material.

또, 윤활유밸브(115)나 윤활유시트(116) 또는 윤활유커버(117) 등도 필요에 따라 스테인레스와 같은 비자성 물질로 형성하거나 외표면에 코팅하여 형성할 수도 있다. In addition, the lubricating oil valve 115, the lubricating oil sheet 116, the lubricating oil cover 117, or the like may also be formed of a nonmagnetic material such as stainless or coated on an outer surface thereof as necessary.

도면중 종래와 동일한 부분에 대하여는 동일한 부호를 부여하였다.In the drawings, the same reference numerals are given to the same parts as in the prior art.

도면중 미설명 부호인 21a는 실린더삽입구멍, 118는 윤활유흡입관, 119는 윤 활유캡, C는 권선코일, M은 마그네트이다.In the figure, 21a is a cylinder insertion hole, 118 is a lubricating oil suction pipe, 119 is a lubricating oil cap, C is a winding coil, and M is a magnet.

상기와 같은 본 발명 왕복동식 압축기의 윤활유 공급 장치는 다음과 같은 작용 효과를 갖는다.The lubricating oil supply device of the reciprocating compressor of the present invention as described above has the following effects.

즉, 왕복동모터(30)에 전원을 인가하여 외측고정자(31)와 내측고정자(32) 사이에 플럭스(flux)를 형성하면, 가동자(33)가 플럭스의 방향에 따라 움직이면서 공진스프링(52)(53)에 의해 지속적으로 왕복운동을 하고, 이와 함께 피스톤(42)이 실린더(41)의 내부에서 왕복운동을 하면서 냉매가스를 압축공간(P)으로 흡입 압축하였다가 토출하며, 이 과정에서 전방프레임(21)과 함께 진동하는 윤활유실린더(111)에 의해 윤활유피스톤(112)이 상대운동을 하면서 펌핑력을 발생시켜 케이싱(10)의 윤활유를 흡입하였다가 윤활유밸브(115)를 통해 윤활유로부(120)로 토출하여 실린더(41)와 피스톤(42) 사이의 미끄럼부로 공급하고, 이 윤활유는 실린더(41)와 피스톤(42) 사이를 윤활한 다음 다시 윤활유로부(120)를 통해 케이싱(10)으로 회수되는 일련의 과정을 반복한다.That is, when a flux is formed between the outer stator 31 and the inner stator 32 by applying power to the reciprocating motor 30, the resonator spring 52 moves while the mover 33 moves in the direction of the flux. Continuously reciprocating by (53), with the piston 42 reciprocating in the cylinder 41 while suction refrigerant compressed to the compression space (P) and discharged, in the process of the front Lubricant piston 112 vibrates with the frame 21 to generate a pumping force while the relative movement of the lubricating oil piston 112 inhales the lubricating oil of the casing 10, and then flows into the lubricating oil part through the lubricating oil valve 115. Discharged to the 120 and supplied to the sliding portion between the cylinder 41 and the piston 42, the lubricating oil is lubricated between the cylinder 41 and the piston 42 and then casing (through the lubricating oil passage 120) Repeat the series of steps to recover 10).

여기서, 윤활유펌핑부(110)가 전방프레임(21)과 중간프레임(22)의 사이, 즉 왕복동모터(30)의 외주면에 근접하게 설치됨에 따라 왕복동모터(30)에서 발생하는 자력이 상기한 윤활유펌핑부(110)로 전달되어 그 윤활유펌핑부(110)를 자화시킬 우려가 있으나, 본 발명에서와 같이 윤활유펌핑부(110)를 이루는 윤활유실린더(111)와 윤활유피스톤(112) 그리고 윤활유스프링(113)(114)을 모두 비자성체로 제작하거나 또는 자성체로 제작하더라도 그 외표면에 비자성 물질로 코팅하는 경우에는 상기한 왕복동모터(30)에 의해 윤활유펌핑부(110)의 각 연관부품(111)(112)(113)들이 자화되는 것을 차단하고 이를 통해 윤활유피스톤(112)이 윤활유실린더(111)의 내부에서 미세 간극(t1)만큼 이격되거나 미그럼접촉하여 원활하게 상대운동을 하면서 케이싱(10)내 윤활유를 펌핑할 수 있게 되는 것이다.Here, as the lubricating oil pumping unit 110 is installed between the front frame 21 and the intermediate frame 22, that is, close to the outer circumferential surface of the reciprocating motor 30, the magnetic force generated in the reciprocating motor 30 is the lubricating oil. There is a concern that the lubricating oil pumping unit 110 is magnetized by being delivered to the pumping unit 110, but the lubricating oil cylinder 111, the lubricating oil piston 112, and the lubricating oil spring constituting the lubricating oil pumping unit 110 as in the present invention ( Even if all of the parts 114 and 114 are made of nonmagnetic material or magnetic material, when the outer surface is coated with nonmagnetic material, the associated parts 111 of the lubricating oil pumping part 110 are recited by the reciprocating motor 30. (112) (113) to block the magnetization and through this the lubricant piston 112 is spaced by the fine gap (t1) in the interior of the lubricating oil cylinder (111) or smoothly relative contact by smoothly moving the casing (10) To pump the lubricant inside It is.

이렇게 하여, 윤활유펌핑부가 왕복동모터에 의해 자화되지 않고 케이싱 내부의 윤활유를 펌핑함에 따라 압축유니트에 윤활유를 원활하게 공급하여 압축기의 성능과 신뢰성을 함께 높일 수 있다.In this way, as the lubricating oil pumping unit pumps the lubricating oil inside the casing without being magnetized by the reciprocating motor, the lubricating oil can be smoothly supplied to the compression unit, thereby improving the performance and reliability of the compressor.

본 발명에 의한 왕복동식 압축기의 윤활유 공급 장치는, 윤활유펌핑부를 비자성체로 제작하거나 외표면에 비자성물질을 코팅하여 왕복동모터에서 전달되는 자력을 차단함으로써, 윤활유피스톤이 윤활유실린더에 달라붙지 않고 원활하게 상대운동을 하여 케이싱 내부의 윤활유를 효과적으로 펌핑할 수 있고 이를 통해 압축유니트에 윤활유를 지속적으로 공급하여 압축기의 성능과 신뢰성을 함께 높일 수 있다.In the lubricating oil supply device of the reciprocating compressor according to the present invention, the lubricating oil piston does not stick to the lubricating oil cylinder by making the lubricating oil pumping part nonmagnetic or by coating a nonmagnetic material on the outer surface to block the magnetic force transmitted from the reciprocating motor. In this case, the lubricating oil in the casing can be effectively pumped by the relative movement, and the lubricating oil can be continuously supplied to the compression unit to increase the performance and reliability of the compressor.

Claims (4)

소정량의 윤활유를 채운 케이싱과, 케이싱의 내부에 탄력 지지하여 설치하고 왕복동모터를 고정 설치하며 왕복동모터의 가동자에 결합한 피스톤이 직선으로 왕복운동을 하도록 실린더를 구비하는 프레임과, 프레임의 하반부에 구비하여 함께 진동하는 윤활유실린더와, 윤활유실린더에 미끄러지게 삽입하여 프레임과 상대운동을 하면서 케이싱 내부의 윤활유를 펌핑하는 윤활유피스톤과, 윤활유피스톤의 양측을 탄력 지지하여 상기 윤활유피스톤에 탄성력을 공급하는 복수 개의 윤활유스프링과, 윤활유실린더의 전방측에 설치하여 윤활유의 흡입과 토출을 조절하는 윤활유밸브와, 윤활유밸브를 수용하여 상기 윤활유실린더의 전방측과 프레임에 구비한 윤활유로 사이를 연결하는 윤활유시트 및 윤활유커버를 포함한 왕복동식 압축기의 윤활유 공급 장치에 있어서,A casing filled with a predetermined amount of lubricating oil, a frame provided with a cylinder such that the piston is elastically supported inside the casing, fixedly installed with a reciprocating motor, and a piston coupled to a mover of the reciprocating motor to reciprocate linearly; And a plurality of lube oil cylinders which vibrate together, a lube oil piston slidingly inserted into the lube oil cylinder to pump the lube oil inside the casing while moving relative to the frame, and elastically supporting both sides of the lube oil piston to supply elastic force to the lube oil piston. Lube oil springs, a lubricating oil valve installed at the front side of the lubricating oil cylinder to regulate the suction and discharge of the lubricating oil, a lubricating oil sheet for receiving the lubricating oil valve and connecting the front side of the lubricating oil cylinder to the lubricating oil passage provided at the frame, and Lubricant supply for reciprocating compressors with lubricant cover In the apparatus, 윤활유실린더나 윤활유피스톤 또는 윤활유스프링이나 윤활유밸브 중에서 적어도 어느 하나는 비자성체로 형성하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치.A lubricating oil supply device for a reciprocating compressor, wherein at least one of a lubricating oil cylinder, a lubricating oil piston, a lubricating oil spring, and a lubricating oil valve is formed of a nonmagnetic material. 소정량의 윤활유를 채운 케이싱과, 케이싱의 내부에 탄력 지지하여 설치하고 왕복동모터를 고정 설치하며 왕복동모터의 가동자에 결합한 피스톤이 직선으로 왕복운동을 하도록 실린더를 구비하는 프레임과, 프레임의 하반부에 구비하여 함께 진동하는 윤활유실린더와, 윤활유실린더에 미끄러지게 삽입하여 프레임과 상대운동을 하면서 케이싱 내부의 윤활유를 펌핑하는 윤활유피스톤과, 윤활유피스톤의 양측을 탄력 지지하여 상기 윤활유피스톤에 탄성력을 공급하는 복수 개의 윤활유스프링과, 윤활유실린더의 전방측에 설치하여 윤활유의 흡입과 토출을 조절하는 윤활유밸브와, 윤활유밸브를 수용하여 상기 윤활유실린더의 전방측과 프레임에 구비한 윤활유로 사이를 연결하는 윤활유시트 및 윤활유커버를 포함한 왕복동식 압축기의 윤활유 공급 장치에 있어서,A casing filled with a predetermined amount of lubricating oil, a frame provided with a cylinder such that the piston is elastically supported inside the casing, fixedly installed with a reciprocating motor, and a piston coupled to a mover of the reciprocating motor to reciprocate linearly; And a plurality of lube oil cylinders which vibrate together, a lube oil piston slidingly inserted into the lube oil cylinder to pump the lube oil inside the casing while moving relative to the frame, and elastically supporting both sides of the lube oil piston to supply elastic force to the lube oil piston. Lube oil springs, a lubricating oil valve installed at the front side of the lubricating oil cylinder to regulate the suction and discharge of the lubricating oil, a lubricating oil sheet for receiving the lubricating oil valve and connecting the front side of the lubricating oil cylinder to the lubricating oil passage provided at the frame, and Lubricant supply for reciprocating compressors with lubricant cover In the apparatus, 윤활유실린더나 윤활유피스톤 또는 윤활유스프링 또는 윤활유밸브 중에서 적어도 어느 하나는 그 외표면을 비자성체물질로 코팅하여 형성하는 것을 특징으로 하는 왕복동식 압축기의 윤활유 공급 장치.A lubricant supply device for a reciprocating compressor, characterized in that at least one of a lubricant cylinder, a lubricant piston, a lubricant spring, or a lubricant valve is formed by coating its outer surface with a nonmagnetic material. 삭제delete 삭제delete
KR1020030102306A 2003-12-31 2003-12-31 Oil supply apparatus for reciprocating compressor KR100575830B1 (en)

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