CN100516535C - Rolling ring of rotary compressor - Google Patents

Abstract

The invention discloses a rotary compressor rolling ring, which is characterized by the following: opening a diagonally lifting flute on the inner circular face from top to bottom; enlarging the touching area and suck enough lubricating oil. The structure improves the working efficiency and reduces eccentric quality of rotary part, which decreases the vibration of eccentric quality.

Description

Rotary compressor roll ring

Technical field

The present invention relates to a kind of ring that rolls of rotary compressor, particularly relate to and a kind ofly can reduce the ring that rolls that rolls the rotary compressor that rubs between ring and the bent axle.

Background technique

In general, rotary compressor is not to rely on centrifugal force, but by the rotation of rolling ring in the cylinder refrigerant is compressed, and promptly relies on the off-centre that is installed in the bent axle bottom to roll ring and does rotation and revolution motion and refrigerant is sucked and compress along the inner peripheral surface of cylinder.Fig. 1 is the rotary compressor forward structure sectional view of prior art.Fig. 2 encircles the longitudinal construction sectional view for rolling of rotary compressor among Fig. 1.As shown in Figure 1, the inside of the rotary compressor of this prior art is formed with confined space, and it comprises: the closed shell 10 that is provided with suction pipe 1 that refrigerant can be sucked and the discharge tube 2 that refrigerant can be discharged; Produce the electromechanical part 20 of rotating force by the interaction that is located at stator 21 in the closed shell 10 and rotor 22; Be located at the inside of closed shell 10, link to each other with electromechanical part 20 and be driven by it, and the refrigerant that sucks can be carried out compressor for compressing tool portion 30; With link to each other with the suction pipe 1 of closed shell 10, and can be drawn into the liquid container 40 that impurity in the refrigerant in the compression mechanical portion 30 and liquid coolant are removed.Described compression mechanical portion 30 is by constituting with lower member: be pressed into the inner peripheral surface of rotor 22, the bottom is formed with eccentric part 31a and end face is circular bent axle 31; Be located at the inside of closed shell 10, link to each other by bolt 34 with lower bearing 33, be provided with eccentric part 31a between upper bearing 32 and the lower bearing 33, and radially be formed with the cylinder 35 of the suction passage 35a of perforation with the upper bearing 32 that supports bent axle 31; Inner circumferential surface contacts with the eccentric part 31a that is located at bent axle 31 bottoms, and outer circumferential face contacts with the inwall of cylinder 35, and by the rotation of eccentric part 31a revolve round the sun and spinning motion roll the ring 36; Be arranged on the cylinder 35, and roll ring 36 outer circumferential face sliding contact, can be zone of high pressure and low pressure area with the internal separation of cylinder 35, and can be along the blade 37 that radially carries out straight reciprocating motion of cylinder 35.When connecting power supply, interaction lower rotor part 22 and bent axle 31 at stator 21 and rotor 22 begin rotation, and under the drive of the eccentric part 31a that is located at bent axle 31 bottoms, also begin rotation with the blade 37 contacted rings 36 that roll, the low-temp low-pressure gaseous coolant that sucks by liquid container 40 can be compressed into the High Temperature High Pressure gaseous coolant when rolling ring 36 rotations.Usually the lubricant oil that can guarantee that each parts runs well in the compressor is equipped with in the bottom of seal casinghousing 10.The bottom of compression mechanical portion 30 just is immersed in this lubricant oil, and the rotation of its bent axle 31 by running through cylinder 35 and upper and lower part bearing 32,33 is inhaled up electromechanical part 20 with lubricant oil and realizes the lubricated of system.As shown in Figure 2, but when this rotary compressor turns round, owing to roll ring 36 for columnar structured, and the gap of rolling between ring 36 and the bent axle 31 in the compression mechanical portion 30 is very little, so occur being inhaled up the lubricants capacity deficiency of electromechanical part 20 sometimes by the rotation of bent axle 31, so not only can increase the friction that component is asked, damage, and the efficient of compressor is reduced thereby parts are produced.

Summary of the invention

In order to address the above problem, the object of the present invention is to provide the ring that rolls of a kind of fuel delivery abundance, vibration is little and efficient is high rotary compressor.

In order to achieve the above object, rotary compressor provided by the invention roll ring have columnar structured, its inner peripheral surface be provided with one from its lower end to the upper end oblique rising and and groove formation consistent with the sense of rotation of bent axle.

Rotary compressor provided by the invention roll ring be on its columnar structured inner peripheral surface, offer one from its lower end to the upper end oblique rising and the groove that forms, the area of contact of rolling between ring and bent axle is strengthened, thereby make the lubricants capacity abundance that upwards sucks, thereby can improve the working efficiency of compressor, but also can reduce the eccentric mass of rotary component, thereby can reduce the vibration that causes therefrom.

Description of drawings

Be elaborated below in conjunction with the ring that rolls of the drawings and specific embodiments to rotary compressor provided by the invention.The parts identical with prior art use identical symbol, and omit its explanation of carrying out.

Fig. 1 is the rotary compressor forward structure sectional view of prior art.

Fig. 2 encircles the longitudinal construction sectional view for rolling of rotary compressor among Fig. 1.

Fig. 3 encircles the longitudinal construction sectional view for rolling of rotary compressor provided by the invention.

Embodiment

As shown in Figure 3, rotary compressor provided by the invention roll ring 40 have columnar structured, its inner peripheral surface be provided with one from its lower end to the upper end oblique rising and the groove 41 that forms.When rotary compressor provided by the invention moves, the bent axle 31 that the lower end is immersed in the lubricant oil can rely on turning effort upwards to suck lubricant oil, wherein a part of lubricant oil will and roll the surface of contact that encircles 40 along bent axle 31 and upwards flow, be formed with from its lower end oblique rising and the groove 41 consistent on 40 owing to roll ring with the sense of rotation of bent axle 31 to the upper end, so lubricant oil can also be drawn into the top of bent axle 31 along groove 41, thereby the lubricants capacity that upwards sucks is increased, therefore can reduce the friction that contacts between parts, improve the working efficiency of compressor.In addition, roll and after ring is offered groove 41 on 40 the eccentric mass of rotary component is reduced, will reduce bent axle 31 like this and roll vibration and the noise that produces when ring 40 together rotates, thereby improve the overall performance of compressor.

Claims (1)

1, a kind of rotary compressor rolls ring, have columnar structuredly, it is characterized in that: described rotary compressor roll ring (40) inner peripheral surface be provided with one from its lower end to the upper end oblique rising and and groove (41) that form consistent with the sense of rotation of bent axle (31).

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