CN205036582U - Rotary compressor - Google Patents

Abstract

The utility model discloses a rotary compressor has accomodate the compressing mechanism portion and the motor of rotation type in the tracheal inclosed casing of run -on, the motor includes stator and rotor, compressing mechanism portion includes: possess the compression chamber the cylinder, accomodate piston in the cylinder and gleitbretter, quilt rotor drive and right the piston carry on eccentric moving bent axle, with the bent axle perhaps the rotor carries out rotatory oily separator jointly, oil separator is constructed becomes to make the follow the compression chamber exhaust high -pressure gas flow through in proper order oil separator the periphery oil separator inside axle mesopore that the inside of bent axle possesses the axle mesoporous open end with the blast pipe. According to the utility model discloses a rotary compressor can reduce the oil mass of telling of compressor, ensures the inside necessary oil mass of compressor, improves the reliability of compressor, maintains compression efficiency.

Description

Rotary compressor

Technical field

The utility model relates to refrigerating field, especially relates to a kind of rotary compressor.

Background technique

Be discharged to from the rotary compressor that housing contents is little in refrigerant refrigeration cycle and be mixed into lubricant oil.Therefore, the oil mass of compressor inside has variation, and guarantor's oil mass of enclosure interior can significantly reduce.Therefore result, compressor not only can be made to have fault, and efficiency can reduce.This problem will be more serious in the rotary compressor of the high speed operation of more than 90rps.

Model utility content

The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of rotary compressor, that reduces compressor tells oil mass.

According to rotary compressor of the present utility model, connect in the airtight housing of outlet pipe and received revolving compression mechanical part and motor, described motor comprises stators and rotators, described compression mechanical part comprises: the cylinder possessing compression chamber, be accommodated in the piston in described cylinder and slide plate, driven by described rotor and described piston carried out to the bent axle of eccentric operating, the oil separating device that rotates jointly is carried out with described bent axle or described rotor, described oil separating device is constructed such that the pressurized gas of discharging from described compression chamber flow through the periphery of described oil separating device successively, the inside of described oil separating device, the axle mesopore that the inside of described bent axle possesses, the opening end of described axle mesopore and described outlet pipe.

According to rotary compressor of the present utility model, by being provided with above-mentioned oil separating device, that can reduce compressor tells oil mass, guarantees the oil mass of necessity of compressor inside, improves the reliability of compressor, maintains compression efficiency.

In embodiments more of the present utility model, described oil separating device is formed as the cylinder plate of the hollow being fixed on described rotor or described bent axle, be enclosed within outside described cylinder plate on described bent axle, described cylinder plate and limit gas channel chamber between described bent axle and described rotor, the perisporium in described gas channel chamber is provided with the first gas suction port.

In embodiments more of the present utility model, described rotor has end ring, the perisporium of described end ring is provided with the second gas suction port, and the top of described end ring is fixed with the first top board with end ring described in capping, and described first top board and described end ring limit described oil separating device.

In embodiments more of the present utility model, the perisporium of described bent axle has the main shaft cross-drilled hole be communicated with described axle mesopore, the inner circle wall of described rotor is provided with groove, described groove extends to the top of described rotor, described main shaft cross-drilled hole is positioned at described groove, the roof of described rotor is fixed with the second top board, and described second top board and described groove limit described oil separating device.

In embodiments more of the present utility model, in the gas channel attachment portion of the opening end of described axle mesopore and the opening end of described outlet pipe, possesses the adjustment piece in the gap formed in the middle of these two opening ends of adjustment.

Particularly, the inner roof wall of described housing is provided with end plate cylinder, the lower end of described outlet pipe extend in described end plate cylinder, the opening end of described axle mesopore is positioned at described end plate cylinder, the top of described bent axle is provided with sealing plate, described sealing plate is positioned at the below of described end plate cylinder, and described sealing plate touches with described end plate socket joint or has gap, and described sealing plate and described end plate cylinder limit described adjustment piece.

In embodiments more of the present utility model, between the opening end of described oil separating device and described axle mesopore, be provided with the swivel plate jointly rotated with described bent axle.

Further, coil spring is provided with between described oil separating device and described swivel plate.

In embodiments more of the present utility model, the lower end of described outlet pipe extend in the opening end of described axle mesopore.

According to specific embodiments more of the present utility model, described compression mechanical part comprises multiple cylinder.

Accompanying drawing explanation

Fig. 1 is relevant to embodiment 1 of the present utility model, represent the in-built longitudinal section of rotary compressor;

Fig. 2 is relevant to embodiment 1, bent axle details drawing;

Fig. 3 is relevant to embodiment 1, the details drawing of oil separating device;

Fig. 4 is relevant to embodiment 1, the details drawing of oil separating device;

Fig. 5 is relevant to embodiment 2 of the present utility model, the details drawing of oil separating device;

Fig. 6 is relevant to embodiment 3 of the present utility model, the details drawing of oil separating device.

Reference character:

Rotary compressor 1, housing 2, circular cylindrical shell 2a, upper head plate 2b, lower end sheet 2c, motor 4, stator 4a, rotor 4b, end ring 61, end ring window 61a, top board 60, rivet 61b,

Compression mechanical part 5, cylinder 10, compression chamber 10a, piston 66, main bearing 40, supplementary bearing 45, bent axle 30, eccentric shaft 34, main shaft 32, main shaft cross-drilled hole 32a, C annular groove 32b, axle mesopore 38, countershaft 36, venting gas appliance 40b, silencing apparatus 40a, end plate cylinder 2d,

Suction pipe 13, outlet pipe 3, oil 8, cylinder plate 20, periphery window 20a, plectane 26, C snap ring 65, coil spring 67, rotor assembling rod 62, sealing plate 25, dull and stereotyped 25a, guide cylinder 25b, one-way clutch 25c, bushing nut 50, spring washer 51,

Condenser 81, expansion valve 82, vaporizer 83, liquid-storage container 85.

Embodiment

Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.

In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of described term in the utility model can be understood as the case may be.

The rotary compressor 1 according to the utility model embodiment is described in detail below with reference to Fig. 1-Fig. 6.Wherein rotary compressor 1 can be horizontal rotary compressor also can be swing rotary compressor.

According to the rotary compressor 1 of the utility model embodiment, connect in the airtight housing 2 of outlet pipe 3 and received revolving compression mechanical part 5 and motor 4, motor 4 comprises stator 4a and rotor 4b, compression mechanical part 5 comprises: the cylinder 10 possessing compression chamber 10a, receive piston 66 in the cylinder 10 and slide plate, driven by rotor 4b and piston 66 carried out to the bent axle 30 of eccentric operating, the oil separating device that rotates jointly is carried out with bent axle 30 or rotor 4b, oil separating device is constructed such that the pressurized gas of discharging from compression chamber 10a flow through the periphery of oil separating device successively, the inside of oil separating device, the axle mesopore 38 that the inside of bent axle 30 possesses, the opening end of axle mesopore 38 and outlet pipe 3.

In other words, rotary compressor 1 comprises motor 4 and compression mechanical part 5, and compression mechanical part 5 and motor 4 are located in the housing 2 of sealing respectively, and motor 4 comprises stator 4a and is located at the rotor 4b in stator 4a.Compression mechanical part 5 comprises cylinder 10, piston 66, slide plate, bent axle 30 and oil separating device.Alternatively, compression mechanical part 5 can comprise multiple cylinder 10.

Cylinder 10 has compression chamber 10a, and piston 66 is located in compression chamber 10a movably, and slide plate to be reciprocally located on cylinder 10 and to coordinate with piston 66.Bent axle 30 is connected with rotor 4b and rotates to be driven by rotor 4b, and bent axle 30 coordinates with piston 66 with driven plunger 66 eccentric operating.Be understandable that, bent axle 30 has axle mesopore 38, and the periphery wall of bent axle 30 is provided with the main shaft cross-drilled hole 32a be communicated with axle mesopore 38.The opening end limiting shaft mesopore 38 is opened wide at the top of axle mesopore 38.

Oil separating device can rotate jointly with bent axle 30, or oil separating device and rotor 4b rotate jointly.Oil separating device can be formed as any structure, as long as make pressurized gas by following path flow: pressurized gas enter in oil separating device from the outside of oil separating device, then pressurized gas enter in axle mesopore 38 by main shaft cross-drilled hole 32a, last pressurized gas from axle mesopore 38 discharged to outlet pipe 3 to discharge compressor.

Because oil separating device and bent axle 30 or rotor 4b rotate jointly, heavy oil can not enter in oil separating device, the gas of light specific gravity enters into oil separating device, thus can play the effect of Oil-gas Separation, reduces the oil content the refrigerant of discharging from outlet pipe 3.

According to the rotary compressor 1 of the utility model embodiment, by being provided with above-mentioned oil separating device, that can reduce compressor tells oil mass, guarantees the oil mass of necessity of compressor inside, improves the reliability of compressor, maintains compression efficiency.

In embodiments more of the present utility model, as shown in Figure 3 and Figure 4, oil separating device is formed as the cylinder plate 20 of the hollow being fixed on rotor 4b or bent axle 30, be enclosed within bent axle 30 outside cylinder plate 20, cylinder plate 20 and limit gas channel chamber between bent axle 30 and rotor 4b, the perisporium in gas channel chamber is provided with the first gas suction port (being following periphery window 20a).

In embodiments more of the present utility model, as shown in Figure 5, rotor 4b has end ring 61, the perisporium of end ring 61 is provided with the second gas suction port (being following end ring window 61a), the top of end ring 61 is fixed with the first top board 60 and limits oil separating device with capping end ring 61, first top board 60 and end ring 61.

In embodiments more of the present utility model, as shown in Figure 6, the perisporium of bent axle 30 has the main shaft cross-drilled hole 32a be communicated with axle mesopore 38, the inner circle wall of rotor 4b is provided with groove (being following round cylinder slot), groove extends to the top of rotor 4b, main shaft cross-drilled hole 32a is positioned at groove, and the roof of rotor 4b is fixed with the second top board 60, second top board 60 and limits oil separating device with groove.

According to embodiments more of the present utility model, in the gas channel attachment portion of the opening end of axle mesopore 38 and the opening end of outlet pipe 3, possesses the adjustment piece in the gap formed in the middle of these two opening ends of adjustment.That is, adjustment piece is arranged in the gas channel attachment portion of the opening end of axle mesopore 38 and the opening end of outlet pipe 3, and adjustment piece is for adjusting the gap formed between the opening end of axle mesopore 38 and the opening end of outlet pipe 3.Such as shown in Figure 3-Figure 5, the inner roof wall of housing 2 is provided with end plate cylinder 2d, the lower end of outlet pipe 3 is positioned at end plate cylinder 2d, the upper end of bent axle 30 extend in end plate cylinder 2d, sealing plate 25 to be located on bent axle 30 and to be positioned at the below of end plate cylinder 2d, sealing plate 25 contacts with end plate cylinder 2d or has gap, and sealing plate 25 and end plate cylinder 2d limit adjustment piece.

As shown in Figure 3, in embodiments more of the present utility model, between the opening end of oil separating device and axle mesopore 38, be provided with the swivel plate jointly rotated with bent axle 30.Alternatively, swivel plate can be formed as plectane 26.Thus by being provided with swivel plate, the pressurized gas of turbulent flow can be concentrated on the peripheral direction of oil separating device, play not to the effect that the upper space of motor 4 spreads, improve the oily separating effect of oil separating device.

Further, coil spring 67 is provided with between oil separating device and swivel plate.

In embodiments more of the present utility model, as shown in Figure 6, the lower end of outlet pipe 3 extend in the opening end of axle mesopore 38.

Be described in detail according to the rotary compressor 1 of the utility model three specific embodiments below with reference to Fig. 1-Fig. 6.

Embodiment 1:

Rotary compressor 1 shown in Fig. 1, receive the variable-frequency type motor 4 and compression mechanical part 5 that can change rotational speed at the internal diameter of housing 2, formed cylinder 10 periphery that the periphery of the stator 4a of motor 4 and compression mechanical part 5 center possess and be fixed on the internal diameter of housing 2.The upper head plate 2b that housing 2 is welded by circular cylindrical shell 2a, its upper and lower end and lower end sheet 2c forms.In addition, the bottom storage lubricant oil (oil 8) of housing 2.

Compression mechanical part 5 possesses: the piston 66 received in the compression chamber 10a of cylinder 10, with the main bearing 40 that possesses in the slide plate (not shown) of this piston common reciprocal movement, described cylinder and supplementary bearing 45, the bent axle 30 that is made up of the torque-transmitting axle 34 (Fig. 2 illustrates) of eccentric drive piston 66 and the main shaft 32 be slidably matched respectively with main bearing 40, supplementary bearing 45 and countershaft 36.In addition, the silencing apparatus 40a of built-in vent device 40b has been possessed in main bearing 40.The rotor 4b carrying out rotating in stator 4a internal diameter is fixed on main shaft 32.

The low-pressure gas sucked from suction pipe 13 compresses among compression chamber 10a, is discharged to silencing apparatus 40a from venting gas appliance 40b.After a large amount of pressurized gas are discharged from silencing apparatus 40a, because the rotation of rotor 4b produces turbulent flow.Be mixed into the oil of upper volume bottom housing 2 in this turbulent gas, the oil mass of pressurized gas is large, such as becomes the oily mixed gas containing 5 ~ 10%.

Mixed gas upwards moves side from the downside of motor 4, moves towards unique exhaust passage cylinder plate 20.Heavy oil can not enter in the cylinder plate 20 of High Rotation Speed, only have the gas of light specific gravity to move in cylinder plate 20, from main shaft cross-drilled hole 32a from several periphery window 20a of cylinder plate 20 opening flows by the order of axle mesopore 38, end plate cylinder 2d, outlet pipe 3.The pressurized gas that oil mass is reduced to less than 1% carry out flowing by the order of condenser 81, expansion valve 82, vaporizer 83, liquid-storage container 85 from outlet pipe 3 to be got back in suction pipe 13.

The plectane 26 run together with bent axle 30, the pressurized gas of turbulent flow are concentrated on cylinder plate 20 peripheral direction, play not to the effect that the upper space of motor 4 spreads.That is, the pressurized gas of turbulent flow are carried out to rectification, promote the centrifugal oil separating effect of cylinder plate 20.But, if oily separating effect only is just enough to ensure by cylinder plate 20, just plectane 26 can be omitted.

Fig. 2 represent bent axle 30 details drawing, represent the axle mesopore 38 of the axle head opening to main shaft 32, detailed with to the main shaft cross-drilled hole 32a of its opening.Main shaft cross-drilled hole 32a is 2 through cross-drilled holes but from the viewpoint of gas circulation amount and main axe intensity, also can change 2 hole sites or 1 non-penetrating cross-drilled hole is good.C annular groove 32b be aftermentioned C snap ring 65 embed groove, need in cylinder plate 20 and plectane 26 are assembled.

Fig. 3 represents the configuration of the component possessed in the cylinder plate 20 shown in Fig. 1 and plectane 26, upper head plate 2b.C snap ring 65 fixing in main shaft 32, be the snubber that the coil spring 67 preventing from possessing between the lower end of the upper end of cylinder plate 20 and plectane 26 is expanded.Therefore, cylinder plate 20 and plectane 26, respectively the upper end of rotor 4b and C snap ring 65 place static fixing.Therefore, cylinder plate 20 and plectane 26 can with rotor 4b or bent axle 30 synchronous rotary.

In addition, in order to prevent the rotation of cylinder plate 20 effectively, a bending of the downside of cylinder plate 20 utilizes as rotation snubber in inner side, using the rotor assembling rod 62 (Fig. 6 reference) of the projection of the upper end of rotor 4b.If what need plectane 26 prevents rotation, the end of coil spring 67 can be bent into right angle, insert in the aperture added in plectane 26.

Outlet pipe 3 to the end plate cylinder 2d central opening being fixed on upper head plate 2b central authorities, so outlet pipe 3 and axle mesopore 38 are concentric.But in order to avoid the gap formed between the lower end inner circumferential and the periphery of main shaft 32 of end plate cylinder 2d, a part for the pressurized gas of housing 2 is not directly drained into outlet pipe 3 by cylinder plate 20, is provided with sealing plate 25.Sealing plate 25 is made up of dull and stereotyped 25a and guide cylinder 25b, guide cylinder 25b possesses only to the one-way clutch 25c (snubber) of rotor-side direction movement.

Torque-transmitting axle 34 shown in Fig. 2 and the clearance C between main bearing 40 (such as, 0.3mm), be the lower end of the cylinder of end plate shown in Fig. 3 2d and the clearance C of dull and stereotyped 25a.That is, in the final assembling procedure of compressor, after compression mechanical part 5 is fixed on housing 2, if compressor reverses up and down, the bent axle integrated with rotor 4b only changes clearance C.At this moment, clearance C can be produced between end plate cylinder 2d and dull and stereotyped 25a.Clearance C is enough little, so the gas flow that the mixed gas in housing leaks in this corner short circuit is negligible.

Most of mixed gas of discharging from compression chamber 11a is discharged to refrigeration cycle from cylinder plate 20 through outlet pipe 3.Be directly proportional to the rotational speed of motor 4, oily mixed gas has increase, but the oily centrifugation of cylinder plate 20 also increases, so no matter motor rotational speed how, and it is certain for telling oil mass.Therefore, the oil reserve of housing 2 will stablize maintenance abundance.Its result, compressor can maintain reliability and efficiency.

Fig. 4 represents the cases of design not adopting plectane 26.In this design, by bushing nut 50 and spring washer 51, cylinder plate 20 is fixed on the upper end of rotor 4b.

Embodiment 2:

As shown in Figure 5, if possess the style of end ring 61 at rotor 4b, several end ring window 61a can be formed in the periphery of end ring 61.On the other hand, with rivet 61b, top board 60 and end ring 61 are carried out integration to fix.In this design, the periphery window 20a of the cylinder plate 20 adopted in end ring window 61a and embodiment 1 is suitable.

Embodiment 3:

The rotor 4b of Fig. 6 in the same manner as in Example 1, is the variable-frequency motor style not having end ring.Usually the rotor assembling rod 62 of more than 4, is possessed in rotor 4b.2 are at least utilized, fixing top board 60 in the vertical rod 62 of these rotor set.Main shaft cross-drilled hole 32a in the round cylinder slot of the turning axle central opening to rotor 4b so sufficient perforated area can be obtained.In this design, main shaft cross-drilled hole 32a is in the centre of rotor 4b, so oil separating device can carry out miniaturization.In addition, main shaft cross-drilled hole 32a represents the cases of design be configured in rotor 4b.

Coaxial with outlet pipe 3 as a feature of the present utility model, axle mesopore 38, their internal diameter is substantially identical.Fig. 6 represents the design example utilizing this feature.A part for the opening end of axle mesopore 38 is slightly larger than the external diameter of outlet pipe 3, has less gap (S).From the internal diameter upper end of outlet pipe 3 insert with footpath fixture, be inserted in the internal diameter of axle mesopore 38, they just can carry out aligning.Thereafter, maintain aligning, while outlet pipe 3 is welded on upper head plate 2b central hole.

Its result, axle mesopore 38 and outlet pipe 3 is that main shaft 32 does not contact with outlet pipe 3 and just can rotate with one heart.In addition, this gap (S) is little, so the mixed gas of discharging from compression chamber 10a and the amount that flows out of outlet pipe 3 short circuit can be ignored.This design, after representing upper end open portion upper head plate 2b being welded on circular cylindrical shell 2a, carries out aligning facing to axle mesopore 38 pairs of outlet pipes 3.

Described from embodiment 1 to the utility model shown in embodiment 3, not only can be applied in single cylinder rotary compressor, be also easy to be applied in and possess 2 with in the multi-cylinder rotary compressor of upper cylinder, or in horizontal rotary compressor.In addition, also can be applied in as compressed configuration in the swing rotary compressor of piston and slide plate integration.

Rotary compressor of the present utility model, can be mounted on air conditioner, refrigeration plant, water heater, vehicle-mounted refrigeration or air conditioner etc.

To sum up analyze known, the problem that model utility will solve is:

Housing internal pressure is that on high-tension side rotary compressor contains a large amount of oil from the pressurized gas that compression chamber is discharged.Therefore, the telling oil mass and can increase of compressor, the oil mass in housing can reduce.

For the concrete means solving the employing of above-mentioned problem are:

From compression chamber discharge all pressurized gas, upwards move side from the downside of motor 4 from silencing apparatus 40a, the peripheral direction towards cylinder plate 20 moves.Heavy oil can not enter in the cylinder plate 20 of High Rotation Speed, only have the gas of light specific gravity from moving to the periphery window 20a of cylinder plate 20 opening cylinder plate 20, from the sequential flowing of main shaft cross-drilled hole 32a by axle mesopore 38, end plate cylinder 2d, outlet pipe 3.The plectane 26 rotated together with bent axle 30, have and the effect of rectification is carried out to pressurized gas turbulent flow.

Described means are adopted to be the effect that the utility model brings:

(1) centrifugal oil separator bent axle is equipped with, reduce compressor and tell oil mass, guarantee that necessary oil mass is guaranteed in compressor inside.

(2) tell oil mass when reducing high speed operation, improve the reliability of compression chamber.

(3) because necessary oil mass often can be kept, so can maintain compression efficiency.

(4) can apply in horizontal rotary compressor or swing rotary compressor.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of described term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.

Although illustrate and described embodiment of the present utility model above, be understandable that, described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change described embodiment, revises, replace and modification in scope of the present utility model.

Claims (10)

1. a rotary compressor, it is characterized in that, connect in the airtight housing of outlet pipe and received revolving compression mechanical part and motor, described motor comprises stators and rotators, described compression mechanical part comprises: the cylinder possessing compression chamber, be accommodated in the piston in described cylinder and slide plate, driven by described rotor and described piston carried out to the bent axle of eccentric operating, the oil separating device that rotates jointly is carried out with described bent axle or described rotor, described oil separating device is constructed such that the pressurized gas of discharging from described compression chamber flow through the periphery of described oil separating device successively, the inside of described oil separating device, the axle mesopore that the inside of described bent axle possesses, the opening end of described axle mesopore and described outlet pipe.

2. rotary compressor according to claim 1, it is characterized in that, described oil separating device is formed as the cylinder plate of the hollow being fixed on described rotor or described bent axle, be enclosed within outside described cylinder plate on described bent axle, described cylinder plate and limit gas channel chamber between described bent axle and described rotor, the perisporium in described gas channel chamber is provided with the first gas suction port.

3. rotary compressor according to claim 1, it is characterized in that, described rotor has end ring, the perisporium of described end ring is provided with the second gas suction port, the top of described end ring is fixed with the first top board with end ring described in capping, and described first top board and described end ring limit described oil separating device.

4. rotary compressor according to claim 1, it is characterized in that, the perisporium of described bent axle has the main shaft cross-drilled hole be communicated with described axle mesopore, the inner circle wall of described rotor is provided with groove, described groove extends to the top of described rotor, described main shaft cross-drilled hole is positioned at described groove, and the roof of described rotor is fixed with the second top board, and described second top board and described groove limit described oil separating device.

5. rotary compressor according to claim 1, is characterized in that, possesses the adjustment piece in the gap formed in the middle of these two opening ends of adjustment in the gas channel attachment portion of the opening end of described axle mesopore and the opening end of described outlet pipe.

6. rotary compressor according to claim 5, it is characterized in that, the inner roof wall of described housing is provided with end plate cylinder, the lower end of described outlet pipe extend in described end plate cylinder, the opening end of described axle mesopore is positioned at described end plate cylinder, and the top of described bent axle is provided with sealing plate, and described sealing plate is positioned at the below of described end plate cylinder, described sealing plate touches with described end plate socket joint or has gap, and described sealing plate and described end plate cylinder limit described adjustment piece.

7. rotary compressor according to claim 1, is characterized in that, is provided with the swivel plate jointly rotated with described bent axle between the opening end of described oil separating device and described axle mesopore.

8. rotary compressor according to claim 7, is characterized in that, is provided with coil spring between described oil separating device and described swivel plate.

9. rotary compressor according to claim 1, is characterized in that, the lower end of described outlet pipe extend in the opening end of described axle mesopore.

10. rotary compressor according to claim 1, is characterized in that, described compression mechanical part comprises multiple cylinder.