CN105889074B - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
CN105889074B
CN105889074B CN201610223543.9A CN201610223543A CN105889074B CN 105889074 B CN105889074 B CN 105889074B CN 201610223543 A CN201610223543 A CN 201610223543A CN 105889074 B CN105889074 B CN 105889074B
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CN
China
Prior art keywords
oil
bent axle
frame
housing
rotary compressor
Prior art date
Application number
CN201610223543.9A
Other languages
Chinese (zh)
Other versions
CN105889074A (en
Inventor
曹小军
Original Assignee
安徽美芝精密制造有限公司
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Application filed by 安徽美芝精密制造有限公司 filed Critical 安徽美芝精密制造有限公司
Priority to CN201610223543.9A priority Critical patent/CN105889074B/en
Priority to CN201310566362.2A priority patent/CN103603804B/en
Publication of CN105889074A publication Critical patent/CN105889074A/en
Application granted granted Critical
Publication of CN105889074B publication Critical patent/CN105889074B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00Components
    • F04C2240/50Bearings

Abstract

The invention discloses a kind of rotary compressor, including:Housing, blast pipe is provided with the top of housing;Compression mechanism, compression mechanism are located in housing, and compression mechanism has bent axle;Motor, motor are located in housing, and the upper end of bent axle extends above the rotor of motor;Bearing assembly, bearing assembly includes frame and auxiliary bearing, auxiliary bearing is arranged in frame and is used for the upper end for supporting bent axle, frame is fixed in housing and collects the machine oil on the internal face for the housing parts being located above frame positioned at the top of motor and include upper end of the oil delivery of collection to auxiliary bearing and bent axle, frame:The frame body and linking arm, auxiliary bearing of annular include:Support, oil collection part and flange portion, frame can collect the lubricating oil on the internal face of the housing of compressor, and the lubricating oil of collection is exported to auxiliary bearing and bent axle, for lubricating auxiliary bearing.

Description

Rotary compressor

The application is November 13 2013 applying date, application number:2013105663622nd, entitled rotary pressure The divisional application of contracting machine.

Technical field

The present invention relates to a kind of rotary compressor.

Background technology

In recent years, popularity rate of the rotary compressor being mounted in domestic air conditioner in the whole world gradually uprises, as business The use of the medium-and-large-sized rotary compressor used with air conditioner also gradually increases.Usual medium-and-large-sized rotary compressor is all The mode of variable-frequency motor and twin-tub is employed, in the hope of improving the efficiency and reliability of compressor.

In medium-and-large-sized frequency conversion type rotary compressor because the abrasion problems of bent axle caused by the perturbing of bent axle, it is necessary to The additional scattered load to bent axle of auxiliary bearing, but due to oil sump of the auxiliary bearing away from compressor, can not in load running Sufficiently lubricated and produce abrasion problem, greatly reduce the life-span of auxiliary bearing and bent axle.

The content of the invention

It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries Go out a kind of rotary compressor, the rotary compressor is provided with bearing assembly, and bearing assembly includes frame and auxiliary bearing, machine Frame can collect the lubricating oil on the internal face of the housing of compressor, and the lubricating oil of collection is exported to auxiliary bearing and song Axle, for lubricating auxiliary bearing.

According to the rotary compressor of the present invention, including:Housing, blast pipe is provided with the top of the housing;Compressor Structure, the compression mechanism are located in the housing, and the compression mechanism has bent axle;Motor, the motor are located at It is used to drive the bent axle to rotate around the central axis of the bent axle in the housing, wherein the upper end of the bent axle is prolonged upwards Stretch the rotor beyond the motor;And bearing assembly, the bearing assembly include frame and auxiliary bearing, the auxiliary Bearing is arranged in the frame and for supporting the upper end of the bent axle, the frame be fixed in the housing and Positioned at the top of the motor with collect be located at the frame above housing parts internal face on machine oil and will receive The upper end of the oil delivery of collection to the auxiliary bearing and the bent axle, wherein, the frame includes:Annular Frame body and linking arm, the inner of the linking arm are connected and the outer end of the linking arm is fixed on institute with the frame body State on the internal face of housing, the auxiliary bearing includes:Support, oil collection part and flange portion, the support are both ends open Cylindrical shape and for supporting the upper end of the bent axle, the oil collection part is connected to the top of the support to store The machine oil of the auxiliary bearing is conveyed to and by institute of the oil delivery to the support and the bent axle by the frame State upper end, the flange portion be connected to the oil collection part on along place and be fixed on below the frame body.

According to the rotary compressor of the present invention, by setting the lubricating oil on frame assembling supporting member internal face and will lubricate Oil is exported between auxiliary bearing and the upper end of bent axle, for lubricating upper end and the auxiliary bearing of bent axle, so as to change significantly The abrasion of auxiliary bearing and bent axle upper end has been apt to it, has improved the service life of the two, has ensure that reliability of operation, on the whole Improve the efficiency of compressor.

In addition, rotary compressor according to embodiments of the present invention, can also have following additional technical feature:

In some examples of the present invention, the oil collection part is the tubular elements that top is opened wide, and the bottom of the oil collection part has There is centre bore, the last week of the support, the radial dimension of the oil collection part was big along being connected on the internal perisporium of the centre bore In the radial dimension of the support.

In some examples of the present invention, oil-collecting groove is provided with the linking arm, the outer end of the oil-collecting groove is prolonged Extend the internal face of the housing and the inner of the oil-collecting groove communicates with the oil collection part.

In some examples of the present invention, the oil-collecting groove is from the outer end towards described the inner to close to the auxiliary The direction of bearing tilts extension.

In some examples of the present invention, the bottom surface of the oil-collecting groove and the folder for being orthogonal to the axial plane of the bent axle Angular region is:0°-30°.

In some examples of the present invention, the linking arm is multiple and circumferentially separated from one another, each connection Arm radially extends.

In some examples of the present invention, multiple stator trimmings are provided with the outer peripheral face of the stator of the motor Groove, the multiple stator trimming groove is in the orthographic projection being orthogonal in the plane of the bent axle axial direction with the multiple linking arm in institute The orthographic projection stated in plane is circumferentially interspersed.

In some examples of the present invention, axle bush or ball are provided with the inner peripheral surface of the support.

Brief description of the drawings

Fig. 1 is the partial schematic diagram of rotary compressor according to an embodiment of the invention;

Fig. 2 is the stereogram of frame according to an embodiment of the invention;

Fig. 3 is the top view of frame according to an embodiment of the invention;

Fig. 4 is the sectional view of the A-A along Fig. 3;

Fig. 5 is the stereogram of auxiliary bearing according to an embodiment of the invention;

Fig. 6 is the sectional view of auxiliary bearing according to an embodiment of the invention;

Fig. 7 is the partial schematic diagram of rotary compressor in accordance with another embodiment of the present invention;

Fig. 8 is the stereogram of frame in accordance with another embodiment of the present invention;

Fig. 9 is the top view of frame in accordance with another embodiment of the present invention;

Figure 10 is the sectional view of the C-C along Fig. 9;

Figure 11 is the stereogram of auxiliary bearing in accordance with another embodiment of the present invention;

Figure 12 is the sectional view of auxiliary bearing in accordance with another embodiment of the present invention.

Reference:

Housing 1, blast pipe 11;

Bent axle 2, upper end 21;

Motor 3, stator 31, rotor 32;

Bearing assembly 4, frame 41, oil-collecting cavity 411, bottom wall 4111, periphery wall 4112, central through hole 4113, linking arm 412, oil-collecting groove 4121, frame body 413, auxiliary bearing 42, support 421, oil collection part 422, flange portion 423.

Embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of Description is of the invention to be described with simplified, rather than the device or element of instruction or hint meaning must be with specific orientation, Yi Te Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.

In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more, Unless otherwise specifically defined.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects Connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.

In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of Fisrt feature level height is less than second feature.

Rotary compressor according to embodiments of the present invention is described in detail below with reference to Fig. 1-Figure 12.

Rotary compressor according to embodiments of the present invention can include housing 1, compression mechanism, motor 3 and supporting Component 4.

According to one embodiment of present invention, housing 1 can include main casing, upper shell and lower house, and upper shell is located at Above main casing, upper shell is solderable integral with main casing, and lower house is located at below main casing, lower house and main casing Solderable integral, upper shell, main casing and lower house are encircled into an installation cavity.It is, of course, understood that according to this hair The structure of housing 1 of the compressor of bright embodiment includes but is not limited to this.As shown in Figure 1 and Figure 7, the top of housing 1 is provided with row Tracheae 11, such as blast pipe 11 are weldingly fixed on upper shell, and a part for blast pipe 11 is located at outside upper shell and another part In upper shell.

Compression mechanism is located in housing, and specific configuration and operation principle of compression mechanism etc. have been those skilled in the art It is known, therefore only make here simply schematically illustrate.

For example, compression mechanism can be single cylinder structure, the single cylinder compressor structure can include base bearing, cylinder, supplementary bearing, The structures such as bent axle 2, piston and slide plate, base bearing are located above cylinder, and supplementary bearing is arranged on below cylinder, and bent axle 2 runs through Base bearing, cylinder and supplementary bearing and supported by base bearing and supplementary bearing, the top of bent axle 2 is fixed with rotor 32 and with 32 turns of rotor Dynamic, bent axle 2 has eccentric part, and for piston bush outside eccentric part and in cylinder, slide plate is slidably disposed on the cunning in cylinder In film trap, the tip of slide plate can extend into cylinder and be resisted against on the outer peripheral face of piston.

It is understood that compression mechanism can also be double-cylinder structure or other structures, here for the knot of compression mechanism Structure is not particularly limited.

As shown in Figure 1 and Figure 7, motor 3 is located in housing and enclosure interior is isolated into upper chamber and lower chambers, drives Dynamic motor 3 includes stator 31 and rotor 32, and rotor 32 is located at the inner side of stator 31, and the relative stator 31 of rotor 32 can be around rotor 32 Rotation axis rotate, rotor 32 can be integrally fixed with the top of bent axle 2, and stator 31 can be fixed on the internal face of housing On, such as the internal face of stator 31 and main casing can be welded and fixed, but not limited to this.

Motor 3 is used to drive bent axle 2 to rotate around the central axis of bent axle 2, and the upper end 21 of wherein bent axle 2 is prolonged upwards The rotor 32 beyond motor 3 is stretched, as shown in Figure 1 and Figure 7.

As shown in Figure 1 and Figure 7, bearing assembly 4 includes frame 41 and auxiliary bearing 42, and auxiliary bearing 42 is arranged on frame 41 The upper upper end 21 for being used to support bent axle 2, such auxiliary bearing 42, base bearing and supplementary bearing form branch at three to bent axle 2 Hold, so as to substantially reduce bent axle 2 rotate when particularly high-speed rotation when bent axle 2 perturb, reduce bent axle 2 abrasion, carry The life-span of high bent axle 2.

Frame 41 is fixed in housing and positioned at the top of motor 3, and frame 41 is used to collect positioned at the top of frame 41 Housing parts internal face on machine oil, frame 41 exports the machine oil of collection the upper end to auxiliary bearing 42 and bent axle 2 21, for lubricating the upper end 21 of bent axle 2 and the bearing engagement face of auxiliary bearing 42, reduce the abrasion of bent axle 2.

Rotary compressor according to embodiments of the present invention, after the completion of compressor assembling and before operation, shell can be passed through Blast pipe 11 at the top of body encloses the lubricating oil of rated capacity to the enclosure interior of compressor, and wherein sub-fraction lubricating oil can adhere to Between auxiliary bearing 42 and the upper end 21 of bent axle 2, the upper end 21 of bent axle 2 and asessory shaft can be lubricated after compressor start Hold 42.

After compressor stable operation, oil droplet can be adhered on the internal face of the housing above part of frame 41, with The continuous operation of compressor, oil droplet can be cumulative, and under gravity, meeting is past dirty along the internal face of housing for oil droplet Dynamic, frame 41 can collect these lubricating oil and lubricating oil is exported into the upper end 21 to auxiliary bearing 42 and bent axle 2, so as to lubricate Bent axle 2, the lubricant effect of the upper end 21 of bent axle 2 and auxiliary bearing 42 is substantially improved, improve auxiliary bearing 42 and song The reliability of axle 2 and life-span.

Thus, rotary compressor according to embodiments of the present invention, by setting on the assembling supporting member internal face of frame 41 Lubricating oil simultaneously exports lubricating oil between auxiliary bearing 42 and the upper end 21 of bent axle 2, for lubricating the upper end 21 of bent axle 2 With auxiliary bearing 42, so as to substantially improve the abrasion of auxiliary bearing 42 and the upper end 21 of bent axle 2, improve the two uses the longevity Life, ensure that reliability of operation, improves the efficiency of compressor on the whole.

According to one embodiment of present invention, as shown in figs 1 to 6, frame 41 can include oil-collecting cavity 411 and connection Arm 412, the inner of linking arm 412 is connected with oil-collecting cavity 411 and the outer end of linking arm 412 is fixed on the internal face of housing 1, Here, it is necessary to which explanation, the inner of linking arm 412 refer to the one end nearer apart from the central axis of bent axle 2 of linking arm 412, The outer end of linking arm 412 refers to the one end of linking arm 412 apart from the central axis of bent axle 2 farther out, the description below the present invention In, if without specified otherwise, the inner of linking arm 412 and the outer end of linking arm 412 are understood in this way.

As shown in Figure 2 and Figure 5, oil-collecting cavity 411 is the tubular elements that top is opened wide, during the bottom of oil-collecting cavity 411 has Heart through hole 4113, specifically, oil-collecting cavity 411 include bottom wall 4111 and periphery wall 4112, and bottom wall 4111 has central through hole 4113, periphery wall 4112 is located at the periphery of bottom wall 4111 along place and upwardly extended.

Further, as shown in Figure 5 and Figure 6, auxiliary bearing 42 includes support 421 and flange portion 423, and support 421 is The cylindrical shape of both ends open, support 421 are enclosed on the outer peripheral face of the upper end 21 of bent axle 2 and are used for the upper end for supporting bent axle 2 Portion 21.Flange portion 423 be connected to support 421 on along place and be fixed on the bottom wall 4111 of oil-collecting cavity 411, such as flange Portion 423 and the bottom wall 4111 of oil-collecting cavity 411 are detachably fastened by bolt, and the lower end of support 421 passes through central through hole 4113 and extend downwardly and stretch out outside frame 41.

Thus, the lubricating oil that linking arm 412 is collected first is conveyed to oil-collecting cavity 411, and oil-collecting cavity 411, which is used to deposit, to be lubricated Oil, auxiliary bearing 42 are arranged in the upper surface of oil-collecting cavity 411 and auxiliary bearing 42 less than the upper surface of oil-collecting cavity 411, collection The lubricating oil of oil cavity 411 will be infiltrated in the flange portion 423 of auxiliary bearing 42, and fluid can be flowed to along flange portion 423 and supported Portion 421, so as to lubricate the upper end 21 of support 421 and bent axle 2.

In short, by setting oil-collecting cavity 411 to increase the function that fluid is deposited, auxiliary bearing 42 is arranged to be less than Oil-collecting cavity 411 can improve lubricant effect, ensure that oil-collecting cavity 411 is smooth to the fuel feeding of auxiliary bearing 42.

Preferably, oil-collecting groove 4121 is provided with linking arm 412, the outer end of oil-collecting groove 4121 extends to housing 1 The inner of internal face and oil-collecting groove 4121 connects with the inside of oil-collecting cavity 411, thus, the shell above oil-collecting groove 4121 When oil droplet on the internal face of body portion is under inner walls surface current, oil-collecting groove 4121 collects the parts of lubricating oil, and Guiding fluid flows through oil-collecting groove 4121 until entering oil-collecting cavity 411.

Here, it is necessary to which explanation, the inner of oil-collecting groove 4121 refers to oil-collecting groove 4121 apart from the central shaft of bent axle 2 The nearer one end of line, the outer end of oil-collecting groove 4121 refer to the one end of oil-collecting groove 4121 apart from the central axis of bent axle 2 farther out, In the description below the present invention, if without specified otherwise, the inner of oil-collecting groove 4121 and the outer end of oil-collecting groove 4121 It is understood in this way.

According to another embodiment of the invention, as shown in Fig. 7-Figure 12, frame 41 can include linking arm 412 and annular Frame body 413, the inner of linking arm 412 is connected and the outer end of linking arm 412 is fixed on housing 1 with frame body 413 On internal face.Further, as is illustrated by figs. 11 and 12, auxiliary bearing 42 includes support 421, oil collection part 422 and flange portion 423, support 421 is the cylindrical shape of both ends open, and support 421 is enclosed on the outer peripheral face of the upper end 21 of bent axle 2 and is used for Support the upper end 21 of bent axle 2.

The top that oil collection part 422 is connected to support 421 is conveyed to the machine oil of auxiliary bearing 42 simultaneously to store by frame 41 By upper end 21 of the oil delivery to support 421 and bent axle 2, flange portion 423 be connected to oil collection part 422 on along place and fixation Below frame body 413, such as flange portion 423 and frame body 413 can be fastened by multiple bolts.

Thus, the lubricating oil that linking arm 412 is collected first is conveyed to oil collection part 422, and oil collection part 422 is used to depositing oil and by oil Export between support 421 and the upper end 21 of bent axle 2, so as to lubricate the upper end 21 of support 421 and bent axle 2.

Further, in this embodiment, oil collection part 422 is the tubular elements that top is opened wide, during the bottom of oil collection part 422 has Heart hole 4221, the last week of support 421, the radial dimension of oil collection part 422 was more than along being connected on the internal perisporium of centre bore 4221 The radial dimension of support 421, such oil collection part 422 can deposit more lubricating oil.

Preferably, as Figure 8-Figure 10, be provided with oil-collecting groove 4121 on linking arm 412, oil-collecting groove 4121 it is outer End extends to the internal face of housing and the inner of oil-collecting groove 4121 communicates with oil collection part 422, thus, positioned at oil-collecting groove 4121 When oil droplet on the internal face of housing above part is under inner walls surface current, oil-collecting groove 4121 collects part profit Lubricating oil, and guide fluid to flow through oil-collecting groove 4121 until entering oil collection part 422.

According to some currently preferred embodiments of the present invention, oil-collecting groove 4121 is from outer end towards inner to close to auxiliary bearing 42 Direction tilt extension, in other words, oil-collecting groove 4121 tilts obliquely from outside to inside, so that oil-collecting groove 4121 can be more preferable Ground exports the lubricating oil of collection to oil-collecting cavity 411 or oil collection part 422.Alternatively, the bottom surface of oil-collecting groove 4121 with it is orthogonal In the axial direction of bent axle 2 plane angular range between 0 ° -90 ° (α in Fig. 4 and Figure 10), such oil-collecting groove 4121 is collected Lubricating oil can more successfully flow to oil-collecting cavity 411 or oil collection part 422.Preferably, the angle is between 0 ° -30 °.By This, the speed that the lubricating oil that can accelerate to collect flows to oil-collecting cavity 411 or oil collection part 422.

According to some embodiments of the present invention, linking arm 412, so not only can be with to be multiple and circumferentially separated from one another The fixing intensity of frame 41 is improved, while allows linking arm 412 to collect more lubricating oil.Preferably, each linking arm 412 radially extend.In Fig. 2 and Fig. 3 and Fig. 8 and Fig. 9 example, linking arm 412 is three and equidistantly distributed.

Further, multiple stator trimming grooves, multiple stator trimming grooves are provided with the outer peripheral face of the stator 31 of motor 3 Circumferentially interlock in orthographic projection of the orthographic projection being orthogonal in the plane of the axial direction of bent axle 2 with multiple linking arms 412 in the plane Distribution.In other words, it is seen from above, multiple linking arms 412 and multiple stator trimming grooves interlaced arrangement in the circumferential.So, it is suitable Oil droplet that the internal face of housing 1 flows down can be by the gas-flow resistance of the refrigerant flowed up at stator trimming groove, so as to beneficial to oil Drip improves the oil-collecting effect of linking arm 412 to linking arm 412.

According to some embodiments of the present invention, axle bush or ball are provided with the inner peripheral surface of support 421, can so be dropped Contact area between the upper end 21 of low support 421 and bent axle 2, support is reduced while support effects are ensured 421 abrasion.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this Different embodiments or example described in bright book are engaged and combined.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims (8)

  1. A kind of 1. rotary compressor, it is characterised in that including:
    Housing, blast pipe is provided with the top of the housing;
    Compression mechanism, the compression mechanism are located in the housing, and the compression mechanism has bent axle;
    Motor, the motor is located to be used to drive the bent axle to revolve around the central axis of the bent axle in the housing Turn, wherein the upper end of the bent axle extends above the rotor of the motor;And
    Bearing assembly, the bearing assembly include frame and auxiliary bearing, and the auxiliary bearing is arranged in the frame and used In the upper end for supporting the bent axle, the frame be fixed in the housing and positioned at the top of the motor with Collect the machine oil on the internal face of the housing parts above the frame and by the oil delivery of collection to described auxiliary The upper end of bearing and the bent axle is helped,
    Wherein, the frame includes:The frame body and linking arm of annular, the inner and frame body phase of the linking arm Connect and the outer end of the linking arm be fixed on the internal face of the housing,
    The auxiliary bearing includes:Support, oil collection part and flange portion, the support are the cylindrical shape of both ends open and are used for The upper end of the bent axle is supported, the top that the oil collection part is connected to the support is conveyed to store by the frame To the auxiliary bearing machine oil and by the upper end of the oil delivery to the support and the bent axle, the method Blue portion be connected to the oil collection part on along place and be fixed on below the frame body.
  2. 2. rotary compressor according to claim 1, it is characterised in that the oil collection part is the tubular that top is opened wide Part, the bottom of the oil collection part have centre bore, and edge last week of the support is connected on the internal perisporium of the centre bore, institute The radial dimension for stating oil collection part is more than the radial dimension of the support.
  3. 3. rotary compressor according to claim 1, it is characterised in that oil-collecting groove is provided with the linking arm, The outer end of the oil-collecting groove extends to the internal face of the housing and the inner of the oil-collecting groove communicates with the oil collection part.
  4. 4. rotary compressor according to claim 3, it is characterised in that the oil-collecting groove is from the outer end towards institute State inner to close to the inclination extension of the direction of the auxiliary bearing.
  5. 5. rotary compressor according to claim 4, it is characterised in that the bottom surface of the oil-collecting groove is with being orthogonal to institute The angular range of plane for stating bent axle axial direction is:0°-30°.
  6. 6. rotary compressor according to claim 1, it is characterised in that the linking arm is multiple and circumferentially each other It is spaced apart, each linking arm radially extends.
  7. 7. rotary compressor according to claim 6, it is characterised in that on the outer peripheral face of the stator of the motor Be provided with multiple stator trimming grooves, the multiple stator trimming groove the orthographic projection being orthogonal in the plane of the bent axle axial direction with Orthographic projection of the multiple linking arm in the plane is circumferentially interspersed.
  8. 8. rotary compressor according to claim 1, it is characterised in that be provided with axle on the inner peripheral surface of the support Lining or ball.
CN201610223543.9A 2013-11-13 2013-11-13 Rotary compressor CN105889074B (en)

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CN201610223543.9A CN105889074B (en) 2013-11-13 2013-11-13 Rotary compressor
CN201310566362.2A CN103603804B (en) 2013-11-13 2013-11-13 Rotating compressor

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CN201610223543.9A CN105889074B (en) 2013-11-13 2013-11-13 Rotary compressor

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CN105889074A CN105889074A (en) 2016-08-24
CN105889074B true CN105889074B (en) 2018-01-19

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CN105257545A (en) * 2015-11-04 2016-01-20 安徽美芝精密制造有限公司 Rotary compressor
CN105604947A (en) * 2016-03-10 2016-05-25 广东美芝制冷设备有限公司 Rotary compressor
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JP5374229B2 (en) * 2009-05-15 2013-12-25 東芝キヤリア株式会社 Hermetic compressor, refrigeration cycle equipment
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