CN102758774A - Oil supply structure for compressor and horizontal rotary compressor adopting oil supply structure - Google Patents
Oil supply structure for compressor and horizontal rotary compressor adopting oil supply structure Download PDFInfo
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- CN102758774A CN102758774A CN2012102086953A CN201210208695A CN102758774A CN 102758774 A CN102758774 A CN 102758774A CN 2012102086953 A CN2012102086953 A CN 2012102086953A CN 201210208695 A CN201210208695 A CN 201210208695A CN 102758774 A CN102758774 A CN 102758774A
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Abstract
The invention discloses an oil supply structure for a compressor, which comprises a motor, a compression unit and a shell, wherein an outer ring of a main bearing of the compression unit is fixedly arranged in the shell, a compression unit cavity and a motor cavity are respectively formed at two sides of the outer ring of the main bearing of the compressor unit, the main bearing is provided with a communicating hole for connecting the two cavities, and an oil cap at the tail end of an auxiliary bearing is provided with an oil sucking pipe which is used for guiding lubricating oil for lubricating the compression unit; a connecting section of a crankshaft and the compression unit is provided with a large-diameter axial through hole, a small-diameter through hole which is communicated with the large-diameter through hole and is of a blind hole at the axial tail end of the crankshaft is axially formed in the center of the middle part of the crankshaft at the matching section between the main bearing and a motor rotor, and the installing sections of the main bearing and the auxiliary bearing of the crankshaft are respectively provided with a radial hole communicated with the large-diameter through hole; the crankshaft at the tail end of the main bearing is radially provided with a radial oil spray hole which is communicated with the small-diameter through hole; and the end surface of the motor rotor, which is close to the compression unit, is provided with a balance block, and a nesting part between the main bearing and the balance block are radially shrunk to form a step. The invention further discloses a horizontal rotary compressor adopting the oil supply structure.
Description
[technical field]
The present invention relates to compressor apparatus, relate in particular to a kind of compressor with oil supply structure and adopt the horizontal rotary compressor of this oil supply structure.
[background technique]
Horizontai rotary compressor is because center of gravity is low, shakes advantage such as little and is widely used in the application systems such as refrigerator, air-conditioning.The oil supply system of Horizontai rotary compressor is the key that guarantees that compressor runs well, and there is significant effects in performance, noise and life-span of compressor.The oil circuit of horizontal compressor generally will make lubricant oil get into bent axle, again through the bent axle radial hole to the working surface fuel feeding with sealing is provided.
Technological now Horizontai rotary compressor, the general oil supplying device structure that adopts is as depicted in figs. 1 and 2, and bent axle a is the clear opening structure, and fuel feeding fan b is installed on the rotor of bent axle a afterbody end; Wherein, the equilibrium block d on the rotor c just merely plays the effect of kinetic balance.As depicted in figs. 1 and 2, during this compressor operating, fuel feeding fan b is along with the rotation of rotor c; Under action of centrifugal force, near the bent axle a afterbody the fuel feeding fan b center forms low pressure, has pressure difference with oil sump space, fuel sucking pipe e place; Under action of pressure; Oil gets into fuel sucking pipe e and rises to bent axle a head, again from the bent axle header stream to the bent axle afterbody, get back in the oil sump; Simultaneously, the oil among the bent axle a under the crankshaft rotating action of centrifugal force, through each radial hole to the working surface fuel feeding with sealing is provided.If do not adorn the fuel feeding fan, like Fig. 3 and shown in Figure 4, the pressure at the pressure ratio fuel sucking pipe of motor leftward space place is high; Oil can not get into fuel sucking pipe, and can find out does not have oil to supply with each bearing working face in the bent axle, and Horizontai rotary compressor can not continue to carry out work; Thereby influence the performance of compressor; Even good cooling motor, cause motor overheating, also can cause the breaking-up of compressor under some condition because of motor overheating.
In addition, in the pressurized gas of discharging compressor, contain more lubricant oil, too much lubricant oil can influence the heat exchanging function of pressurized gas in system; The efficiency of system is reduced, thereby have and in horizontal compressor, have the oily device of retaining, generally; Be the grease baffle that sheet is set on rotor, can reduce the amount of a certain amount of discharge pressurized gas, but because the setting of grease baffle; To mobile the caused obstruction of pressurized gas at motor cavity; Reduced the flowability of gas, influenced effective cooling, increased the harm that motor overheating causes motor at motor cavity.
[summary of the invention]
The present invention provides a kind of equilibrium block simple in structure, easy to assembly and oil supply structure; Effectively reduce the lubricants capacity that gets into application system; Strengthen the heat exchanging function of pressurized gas in system; Promoted the efficiency of compressor, also practice thrift simultaneously bearing thickness material and bearing relief opening processing, reduced the compressor cost compressor with oil supply structure and adopt the horizontal rotary compressor of this oil supply structure.
In order to realize goal of the invention, the technological scheme that the present invention adopts is:
A kind of compressor is used oil supply structure; Comprise motor, compression unit and housing; The motor of compressor and compression unit all are sealed in the housing of compressor; The outer shroud of the main bearing of compression unit is installed in the housing and in its both sides and forms compression unit chamber and motor cavity respectively; The intercommunicating pore that connects two chambers is set on the main bearing, the bent axle on the rotor and the main bearing of compression unit, cylinder and supplementary bearing be tightly connected and the drive compression unit in roller rotate, the terminal oil cap of supplementary bearing is provided with and guides the fuel sucking pipe that lubricates compression unit lubricant oil; The linkage section of said bent axle and compression unit offers axial diameter through hole; Be the minor diameter through hole that blind hole is provided with at main bearing with being axially arranged with diameter through hole perforation and bent axle axial end of center, bent axle middle part of the rotor section of cooperation, the main bearing of said bent axle and supplementary bearing construction section are respectively equipped with the radial hole that is communicated with diameter through hole; The bent axle terminal at main bearing radially also is provided with the radially nozzle opening that is communicated with the minor diameter through hole, and said radially nozzle opening is convenient to the terminal middle low pressure cavity oil spout that forms with rotor, stator of main bearing; Said rotor is equipped with equilibrium block near the end face of compression unit; Said main bearing and equilibrium block socket place radial contraction form a step; The gap that the step of main bearing and motor stator inwall form be convenient to from bent axle radially the gas that comes out of nozzle opening flow out low pressure cavity zone in the middle of forming from the equilibrium block side.
Preferably, said rotor is provided with blade near the end face of compression unit.
Preferably, said blade is arc shaped surface or faces directly or arc shaped surface and the combination faced directly.
Preferably, a said blade and a disk are wholely set, and blade is arranged on the one side towards rotor; Said equilibrium block and blade, disk are integrally formed; Said disk is connected on the equilibrium block of rotor protrusion; The base plane of equilibrium block is provided with mounting hole; The resigning hole of equilibrium block also is set on the disk, integrally formed disk, blade and equilibrium block through rivet or screw on rotor.
Preferably, the spiral Oil Guide sheet with its coaxial rotation and shape warpage is installed also in the diameter through hole of said bent axle, the diameter through hole top also is equipped with and is used to limit the limited cover that diameter through hole internal spiral Oil Guide sheet skids off.
A kind of Horizontai rotary compressor adopts above-mentioned compressor to use exhaust structure.
The invention has the beneficial effects as follows:
Horizontai rotary compressor of the present invention; Oil supply structure is with respect to existing technology; On the one hand, the center, bent axle middle part of main bearing and the rotor section of cooperation axially, be provided with and connect with diameter through hole and the bent axle axial end is the minor diameter through hole that blind hole is provided with; Like this, blocked the zone of high pressure of motor leftward space; On the other hand; Rotor is equipped with equilibrium block near the end face of compression unit, and arc shaped surface or the blade of facing directly and equilibrium block are wholely set, in compressor operation; The rotation of rotor banding dynamic balancing piece; The rotation of blade on the equilibrium block makes the zone that step, rotor, equilibrium block and stator by main bearing surrounds each other, can form the middle low pressure cavity zone of certain vacuum degree; Because fuel sucking pipe place oil sump pasta pressure is higher; Thereby quicken pressurized gas from the compression unit end to the flowing of middle low pressure cavity zone, help oil suction, thereby from oil sump, be pressed into fuel sucking pipe to oil through pressure difference; Get in the bent axle axial diameter through hole and minor diameter through hole; Low pressure cavity oil spout district in the middle of the radially nozzle opening of bent axle flows to simultaneously, leaves under the centre of force effect in the rotation of bent axle; Oil offers required lubricated and sealed working face from each radial hole, satisfies the fuel feeding of horizontal compressor;
The present invention adopts equilibrium block and blade, disk integrally formed, makes and saves the fuel feeding fan in the existing compressor by the easy for installation of equilibrium block, has reduced the compressor components number, thereby has saved cost, has improved compressor final assembly efficient simultaneously; In addition; Because the rotation of blade; The lubricant oil that mixes in the pressurized gas can be when blade rotates attached to blade on, and under action of centrifugal force, be thrown toward the outside, effectively reduce the lubricants capacity that gets into application system; Strengthen the heat exchanging function of pressurized gas in system, promoted the efficiency of compressor.
[description of drawings]
Fig. 1 is the sectional structure schematic representation of existing Horizontai rotary compressor;
Fig. 2 is the three-dimensional structure for amplifying schematic representation of equilibrium block in the existing Horizontai rotary compressor;
Fig. 3 is the cross section oil content Butut (dark for there is oil distinguish) of existing Horizontai rotary compressor when not having fan;
Fig. 4 is the cross section pressure-plotting of existing Horizontai rotary compressor when not having fan (dark be zone of high pressure);
Fig. 5 is the sectional structure schematic representation of Horizontai rotary compressor of the present invention;
Fig. 6 is the three-dimensional enlarged diagram of embodiment's equilibrium block among the present invention;
Fig. 7 is that the master of equilibrium block looks enlarged diagram among Fig. 6;
Fig. 8 is the three-dimensional enlarged diagram of another embodiment's equilibrium block among the present invention;
Fig. 9 is another side perspective enlarged diagram of equilibrium block among Fig. 8;
Figure 10 is the cross section oil content Butut (dark for there is oil distinguish) of Horizontai rotary compressor of the present invention when not having fan;
Figure 11 is the cross section pressure-plotting of Horizontai rotary compressor of the present invention when not having fan (dark be zone of high pressure).
[embodiment]
To combine the accompanying drawing in the embodiment of the invention below, the technological scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
A kind of compressor is used oil supply structure; Extremely shown in Figure 9 like Fig. 5; Comprise motor 1, compression unit 2 and housing 3; The motor 1 of compressor and compression unit 2 all are sealed in the housing 3 of compressor, and the outer shroud of the main bearing 4 of compression unit 2 is installed in the housing 3 and in its both sides and forms compression unit chamber A and motor cavity B respectively, and the intercommunicating pore 40 that connects two chambers (compression unit chamber A and motor cavity B) is set on the main bearing 4; Bent axle 5 on the rotor 1a is tightly connected with main bearing 4, cylinder 6 and the supplementary bearing 7 of compression unit 2 and drive compression unit 2 interior rollers 8 rotate, and supplementary bearing 7 terminal oil caps 9 are provided with the fuel sucking pipe 10 of lubricated compression unit 2 lubricant oil of guiding; Bent axle 5 offers axial diameter through hole 50 with the linkage section center of compression unit 2; Connect with diameter through hole 50 and be the minor diameter through hole 51 that blind hole is provided with at being axially arranged with of the center, bent axle 5 middle part of main bearing 4 and the rotor 1a section of cooperation, be respectively equipped with the radial hole 52 that is communicated with diameter through hole 50 at the main bearing 4 and supplementary bearing 7 construction sections of bent axle 5 in bent axle 5 axial end; The bent axles 5 terminal at main bearing 4 radially also are provided with the radially nozzle opening 53 that is communicated with minor diameter through hole 51, its radially nozzle opening 53 be convenient to middle low pressure cavity zone C oil spouts terminal to main bearing 4 and rotor 1a, motor stator 1b formation; Near the end face of compression unit 2 equilibrium block 11 is installed at rotor 1a; Main bearing 4 forms a step 41 with equilibrium block 11 socket place radial contraction; The gap that the step 41 of main bearing 4 and motor stator 1b inwall form be convenient to from bent axle 5 radially the gas that comes out of nozzle opening 53 flow out low pressure cavity zone C in the middle of forming from equilibrium block 11 sides.
As shown in Figure 5, the spiral Oil Guide sheet 14 with its coaxial rotation and shape warpage also is installed in the diameter through hole 50 of bent axle 5, diameter through hole 50 tops also are equipped with and are used to limit the limited cover 15 that diameter through hole 50 internal spiral Oil Guide sheets 14 skid off.
To shown in Figure 9, rotor 1a is provided with blade 12 near the end face of compression unit 2 like Fig. 6; Like Fig. 6 and shown in Figure 7, blade 12 is for facing directly, the lubricant oil of being convenient to mix in the pressurized gas when blade 12 rotations attached to blade 12 on; Like Fig. 8 and shown in Figure 9; Blade 12 is an arc shaped surface; The lubricant oil of not only being convenient to mix in the pressurized gas can be when blade 12 rotations attached to blade 12 on; Be more convenient for and under action of centrifugal force, be thrown toward the outside, and can not cause obstruction flowing of motor cavity B, can not impact the flowability of gas at motor cavity B to pressurized gas; In Fig. 6 to Fig. 9, during blade 12 design, adopt a blade 12 and a disk 13 to be wholely set, add man-hour, adopt equilibrium block 11 and blade 12, disk 13 integrally formed, blade 12 is arranged on the one side towards rotor 1a; Like this, disk 13 is connected on the equilibrium block 11 of rotor 1a protrusion.In Fig. 8 to Fig. 9; The base plane 110 of equilibrium block 11 is provided with mounting hole 111; The resigning hole 130 of equilibrium block 11 also is set on the disk 13, is convenient to integrally formed disk 13, blade 12 and equilibrium block 11 and is fixed in rotor 1a end through rivet or screw (not shown).
Above-mentioned oil supply structure of the present invention can be applicable to Horizontai rotary compressor; When Horizontai rotary compressor is worked, equilibrium block 11 and bent axle 5 rotations, the zone that feasible step 41 by main bearing 4, rotor 1a, equilibrium block 11 and motor stator 1b surround each other; Can form the middle low pressure cavity zone C of certain vacuum degree; The Radial Flow of this regional gas bent axle 5 rotation centerlines in the action of centrifugal force lower edge forms the relatively low pressure district, and is shown in figure 11, can see equilibrium block 11 regional formed low pressure areas; Strengthen the centrifugal motion of gases with the integrally formed blades 12 of equilibrium block 11, make this regional pressure lower.Because fuel sucking pipe 10 place oil sump pasta pressure are higher; Thereby from oil sump, be pressed into fuel sucking pipe 10 to oil through pressure difference, get in the axial diameter through hole 50 of bent axle 5 and the minor diameter through hole 51 low pressure cavity zone C in the middle of the radially nozzle opening 53 of bent axle 5 flows to; Simultaneously; Leave under the centre of force effect in the rotation of bent axle 5, oil offers required lubricated and sealed working face from each radial hole 52, satisfies the fuel feeding of horizontal compressor.Shown in figure 10, can see in the bent axle 5 that oil is arranged, through overtesting, this kind structure can satisfy the fuel feeding of horizontal compressor.
The above embodiment for preferred embodiment of the present invention, is not to limit practical range of the present invention with this just, and the equivalence that all shapes according to the present invention, structure and principle are done changes, and all should be covered by in protection scope of the present invention.
Claims (6)
1. a compressor is used oil supply structure; Comprise motor, compression unit and housing; The motor of compressor and compression unit all are sealed in the housing of compressor; The outer shroud of the main bearing of compression unit is installed in the housing and in its both sides and forms compression unit chamber and motor cavity respectively; The intercommunicating pore that connects two chambers is set on the main bearing, the bent axle on the rotor and the main bearing of compression unit, cylinder and supplementary bearing be tightly connected and the drive compression unit in roller rotate, the terminal oil cap of supplementary bearing is provided with and guides the fuel sucking pipe that lubricates compression unit lubricant oil; It is characterized in that:
The linkage section of said bent axle and compression unit offers axial diameter through hole; Be the minor diameter through hole that blind hole is provided with at main bearing with being axially arranged with diameter through hole perforation and bent axle axial end of center, bent axle middle part of the rotor section of cooperation, the main bearing of said bent axle and supplementary bearing construction section are respectively equipped with the radial hole that is communicated with diameter through hole;
The bent axle terminal at main bearing radially also is provided with the radially nozzle opening that is communicated with the minor diameter through hole, and said radially nozzle opening is convenient to the terminal middle low pressure cavity oil spout that forms with rotor, stator of main bearing;
Said rotor is equipped with equilibrium block near the end face of compression unit; Said main bearing and equilibrium block socket place radial contraction form a step; The gap that the step of main bearing and motor stator inwall form be convenient to from bent axle radially the gas that comes out of nozzle opening flow out low pressure cavity zone in the middle of forming from the equilibrium block side.
2. compressor according to claim 1 is used oil supply structure, it is characterized in that, said rotor is provided with blade near the end face of compression unit.
3. compressor according to claim 2 is used oil supply structure, it is characterized in that, said blade is arc shaped surface or faces directly or arc shaped surface and the combination faced directly.
4. compressor according to claim 2 is used oil supply structure, it is characterized in that, a said blade and a disk are wholely set, and blade is arranged on the one side towards rotor; Said equilibrium block and blade, disk are integrally formed; Said disk is connected on the equilibrium block of rotor protrusion; The base plane of equilibrium block is provided with mounting hole; The resigning hole of equilibrium block also is set on the disk, integrally formed disk, blade and equilibrium block through rivet or screw on rotor.
5. compressor according to claim 1 and 2 is used oil supply structure; It is characterized in that; Spiral Oil Guide sheet with its coaxial rotation and shape warpage also is installed in the diameter through hole of said bent axle, and the diameter through hole top also is equipped with and is used to limit the limited cover that diameter through hole internal spiral Oil Guide sheet skids off.
6. a Horizontai rotary compressor is characterized in that, adopts and uses exhaust structure like any described compressor of claim of claim 1～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208695.3A CN102758774B (en) | 2012-06-21 | 2012-06-21 | A kind of compressor oil supply structure and adopt the Horizontai rotary compressor of this oil supply structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208695.3A CN102758774B (en) | 2012-06-21 | 2012-06-21 | A kind of compressor oil supply structure and adopt the Horizontai rotary compressor of this oil supply structure |
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| CN102758774A true CN102758774A (en) | 2012-10-31 |
| CN102758774B CN102758774B (en) | 2016-03-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511227A (en) * | 2013-06-24 | 2014-01-15 | 广东美芝制冷设备有限公司 | Compressor |
| CN103912493A (en) * | 2014-04-10 | 2014-07-09 | 广东美芝制冷设备有限公司 | Compressor and refrigeration system with same |
| CN105221423A (en) * | 2015-10-21 | 2016-01-06 | 安徽美芝精密制造有限公司 | Horizontal compressor |
| CN107859624A (en) * | 2017-10-09 | 2018-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and there is its air conditioner |
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| CN201982302U (en) * | 2010-12-31 | 2011-09-21 | 珠海格力电器股份有限公司 | Oil separation device of horizontal type rotary compressor |
| CN202991501U (en) * | 2012-06-21 | 2013-06-12 | 珠海格力电器股份有限公司 | Oil supply structure for compressor and horizontal rotary compressor using the oil supply structure |
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| JPH06213185A (en) * | 1992-12-07 | 1994-08-02 | Carrier Corp | Horizontal rotary compressor |
| JPH07233794A (en) * | 1994-02-25 | 1995-09-05 | Daikin Ind Ltd | Horizontal rotary compressor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511227A (en) * | 2013-06-24 | 2014-01-15 | 广东美芝制冷设备有限公司 | Compressor |
| CN103511227B (en) * | 2013-06-24 | 2016-03-16 | 广东美芝制冷设备有限公司 | Compressor |
| CN103912493A (en) * | 2014-04-10 | 2014-07-09 | 广东美芝制冷设备有限公司 | Compressor and refrigeration system with same |
| CN103912493B (en) * | 2014-04-10 | 2017-01-25 | 广东美芝制冷设备有限公司 | Compressor and refrigeration system with same |
| CN105221423A (en) * | 2015-10-21 | 2016-01-06 | 安徽美芝精密制造有限公司 | Horizontal compressor |
| CN105221423B (en) * | 2015-10-21 | 2018-06-12 | 安徽美芝精密制造有限公司 | Horizontal compressor |
| CN107859624A (en) * | 2017-10-09 | 2018-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and there is its air conditioner |
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|---|---|
| CN102758774B (en) | 2016-03-23 |
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