KR950033103A

KR950033103A - Rotary compressor

Info

Publication number: KR950033103A
Application number: KR1019950010720A
Authority: KR
Inventors: 히로가쯔 고소까베; 아끼히또 이시야마; 히로아끼 하따; 마사히로 다께바야시; 마사또시 미시나
Original assignee: 가나이 쯔또무; 가부시끼가이샤 히다찌세이사꾸쇼
Priority date: 1994-05-06
Filing date: 1995-05-02
Publication date: 1995-12-22
Also published as: KR0169970B1; CN1091492C; JPH07301190A; CN1112202A

Abstract

밀페형의 로터리압축기에 관한 것으로, 롤러와 베인의 접촉부에 있어서의 마찰과 마모를 저감해서 압축기의 성능과 신뢰성을 향상하기 위해, 롤러와 베인의 접축부를 윤할하기 위한 오일공급수단이 급유장치와는 별도로 마련되어 있고, 이 오일공급수단은 크랭크축의 회전에 대응해서 작동하고 흡입실의 형성이 시작된 후에 베인에 대한 롤러의 슬라이드방향이 역전하는 시기 중 적어도 최초의 시기에 밀폐용기내의 고압의 윤활유를 롤러와 베인의 접촉부를 향해서 공급하고, 이 공급시기는 예를 들면 베인이 실린더의 외측방향으로 최대 이동했을때를 크랭크축의 회전각 0°로 하여 이 회전각 90°근방이고, 오일공급수단은 베인에 형성된 홈이나 실린더의 끝벽에 형성된 오목부로 하는 구성으로 되어 있다.An airtight rotary compressor is provided. An oil supply means for lubricating a contact portion between a roller and a vane to reduce friction and wear at the contact portion between the roller and the vane, and to improve the performance and reliability of the compressor, The oil supply means is operated in response to the rotation of the crankshaft, and after the formation of the suction chamber is started, the high pressure lubricant in the sealed container is rolled at least at the first time of the reversal of the slide direction of the roller relative to the vane. And the feed time is in the direction of contact with the vane, and this supply timing is, for example, the rotation angle of the crankshaft at 0 ° when the vane moves to the outer side of the cylinder at about 90 °, and the oil supply means is at the vane. The concave portion is formed in the formed groove or the end wall of the cylinder.

이러한 구성에 의해, 실린더내로의 과잉 급유에 의한 성능저하를 방지해서 롤러와 베인의 접촉부를 효율좋고 효과적으로 윤활할 수 있고, 윤활성이 부족한 HFC계의 대체프론을 사용한 경우에도 로터리압축기의 성능과 신뢰성을 향상시킬수있다는 효과가 얻어진다.This configuration prevents performance degradation due to excessive lubrication in the cylinder, so that the contact between the roller and the vane can be efficiently and effectively lubricated, and the performance and reliability of the rotary compressor can be improved even when an alternative fluorocarbon, which lacks lubrication, is used. The effect can be improved.

Description

Rotary compressor

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 제1실시예에 의한 횡형 로터리압축기를 도시한 종단면도, 제2도는 제1도의 Ⅱ-Ⅱ선에 따른 종단면도, 제3도A∼제3도D는 제1도의 압축기에 있어서의 롤러와 베인용의 윤활기구를 설명하기 위해 개략적으로 도시한 도면, 제4도는 로터리압축기에 있어서의 롤러와 베인의 상대 슬라이드 속도를 도시한 선도, 제8도A∼제8도D는 압축기에 있어서의 롤러와 베인용의 윤활기구를 설명하기 위해 개략적으로 도시한 도면, 제19도는 베인을 로터리압축기에 부착한 상태를 개략적으로 도시한 도면, 제20도는 또 다른 구체예를 도시한 사시도.FIG. 1 is a longitudinal sectional view showing a lateral rotary compressor according to a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view taken along line II-II of FIG. 1, and FIGS. 3A to 3D are compressors of FIG. Fig. 4 is a diagram schematically illustrating the lubrication mechanism for rollers and vanes in Fig. 4 is a diagram showing the relative slide speeds of the rollers and vanes in a rotary compressor, and Figs. Fig. 19 schematically shows a lubrication mechanism for a roller and vanes in a compressor, and Fig. 19 schematically shows a state in which a vane is attached to a rotary compressor, and Fig. 20 is a perspective view showing another embodiment. .

Claims

An airtight container including a sealed container storing lubricating oil, a compression device installed in the container, an electric motor for driving the compression device, a lubrication device for lubricating the compression device and the electric motor, and the compression device has a circumference having an inlet and an outlet. A cylinder forming a cylindrical working chamber, a cylindrical roller accommodated in the cylinder, a crankshaft for eccentrically rotating the roller along an inner circumferential surface of the working chamber, and protruding elastically into the cylinder and always in contact with the roller; A rotary compressor having a plate-shaped vane that divides the operation chamber into a suction chamber and a compression chamber, suctions and compresses the working fluid according to the eccentric rotation of the roller, and discharges the compressed working fluid through the sealed container outside the compression apparatus. The oil supply means for lubricating the contact portion of the roller and the vane is separate from the lubricating oil device. And the oil supply means is operated in accordance with the rotation of the crankshaft and at least the first time during which the slide direction of the roller with respect to the vane is reversed after formation of the suction chamber starts. The rotary compressor for supplying to the contact portion of the roller and the vane.

The crank shaft according to claim 1, wherein the vane reciprocates according to the eccentric rotation of the roller, and the timing of supplying the lubricating oil by the oil supply means is the rotation of the crankshaft when the vane moves to the outer side of the cylinder to the maximum. Rotary compressors with an angle of 0 ° and a rotation angle of about 90 °.

3. The rotary compressor of claim 2, wherein the oil supply means supplies lubricating oil through the suction chamber toward the contact portion between the roller and the vane, and does not simultaneously communicate with the high pressure lubricant of the suction chamber and the sealed container.

4. The oil supply means according to claim 3, wherein the oil supply means includes a recess formed in the vane, the recess moves together with the vane to communicate with the vane to flow into the sealed container when the rotation angle of the crankshaft is 0 °. And a rotary compressor communicating with the suction chamber when the rotation angle of the crankshaft is about 90 ° to discharge lubricant.

4. The inner side of the roller is filled with high pressure lubricating oil by supply of the oil supply device, and the oil supply means includes a recess formed in at least one end wall of the operating chamber, and the recess is an eccentric rotation. Selectively covered by the end of the roller to communicate with the inner side of the roller when the rotation angle of the crankshaft is 0 °, and introduce the lubricant oil, and communicate with the suction chamber when the rotation angle is near 90 ° to discharge the lubricant oil. Rotary compressor.

6. The rotary compressor of claim 5, wherein the recess is a circular groove.

4. The sealed container of claim 3, wherein the oil supply means includes a recess formed in the vane and an oil passage connected to the suction port, wherein the recess moves together with the vane so that the crankshaft rotates at 0 °. And a lubricating oil flowing into the lubricating oil and communicating with the oil passage when the rotation angle is around 90 ° to mix lubricating oil into the working fluid flowing from the suction port.

8. The rotary compressor of claim 7, wherein the suction port is disposed to face a working fluid flowing into the contact portion between the roller and the vane when the rotation angle of the crankshaft is about 90 degrees.

3. The rotary compressor according to claim 2, wherein the oil supply means supplies lubricating oil through the suction chamber toward the contact portion of the roller and the vane, and simultaneously communicates with the high pressure lubricant of the suction chamber and the sealed container.

The oil supply means according to claim 9, wherein the oil supply means includes a recess formed in the vane, the recess moving with the vane to communicate the lubricant of the suction chamber and the sealed container when the rotation angle of the crankshaft is about 90 °. And remove from the inside of the hermetically sealed container when the rotation angle is 0 °, and exit from the suction chamber when the rotation angle is 180 °.

11. The rotary compressor of claim 10, wherein the recess is a groove, and the groove is formed at each portion between the side and the end surface of the vane.

11. The rotary compressor of claim 10, wherein the recess is a groove, the groove being formed on the side of the vane and the width of the groove is constant.

13. The rotary compressor according to claim 12, wherein the depth of the groove is gently changed along the longitudinal direction of the groove, and the depth of the groove is maximum at the center of the longitudinal direction.

14. The rotary compressor of claim 13, wherein the bottom surface of the groove is arcuate in the longitudinal direction.

13. The rotary compressor of claim 12, wherein the depth of the groove is constant, and both ends of the groove are inclined such that the cross-sectional area of the flow path by the groove is substantially constant along the flow path when communicating with the suction chamber and the lubricating oil of the sealed container. .

13. An end portion of the groove on the lubricating oil side of the hermetic container is formed perpendicular to the vane, and the bottom surface of the groove is gradually moved toward the suction chamber side from the end where the depth of the groove is vertical. Rotary compressors inclined in a straight line to be thinner.

17. The suction port according to any one of claims 1 to 6 and 9 to 16, wherein the working fluid flowing in the suction port pushes the lubricating oil from the oil supply means to the contact portion of the roller and the vane. Rotary compressor.

※ Note: The disclosure is based on the initial application.