CN105443379B - Helical-lobe compressor and air conditioner - Google Patents
Helical-lobe compressor and air conditioner Download PDFInfo
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- CN105443379B CN105443379B CN201410413426.XA CN201410413426A CN105443379B CN 105443379 B CN105443379 B CN 105443379B CN 201410413426 A CN201410413426 A CN 201410413426A CN 105443379 B CN105443379 B CN 105443379B
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Abstract
The present invention provides a kind of helical-lobe compressor, including screw rotor, star-wheel and housing, screw rotor and star-wheel are placed in housing, the helicla flute of screw rotor is meshed with the star-wheel gear piece of star-wheel, star-wheel gear piece, helicla flute and housing are collectively forming the element volume of closing, star-wheel gear piece is provided with multiple blind holes with the one side that housing mutually seals, and multiple blind holes are in honeycomb arrangement；Or star-wheel gear piece with the one side that housing mutually seals is provided with coating.Further relate to a kind of air conditioner.The helical-lobe compressor and air conditioner of the present invention, the sealing structure that star-wheel gear piece contacts with housing uses similar honeycomb seal structure, turbulization effect when such high pressure draught passes through cellular band, increases air-flow damping action, and the formation of oil film is more beneficial for, reach good sealing effectiveness；Coating layer is covered on the surface of star-wheel gear piece, and the tolerance of impurity is strengthened, good sealing effect, reduces and causes the stuck phenomenon of compressor by impurity, strengthen the reliability of compressor.
Description
Technical field
The present invention relates to refrigerating field, more particularly to a kind of helical-lobe compressor and air conditioner.
Background technology
The star wheel structure generally use cast iron or PEEK materials (polyether-ether-ketone, English name of existing single screw compressor
Polyetheretherketone, abbreviation PEEK), as shown in figure 1, during compressor operating, it is engaging-in into screw rotor 1
Star-wheel gear piece 2 by forming annular seal space with the screw channel cell wall of housing, screw rotor 1, screw rotor rotary motion makes annular seal space
Interior working medium (refrigerant) is gradually compressed to elevated pressures and discharged from exhaust outlet 3.Existing star-wheel gear piece 2 contacts with housing
Face sealing surfaces ensure the sealing of compression chamber using plane, reach the internal gases at high pressure of compression chamber (annular seal space) and do not leak outside
Purpose.Following defect be present in prior art：When the gap between the surface of star-wheel gear piece 2 and compressor housing is too small, star-wheel
Friction loss between gear piece 2 and housing can cause the rise of the Fast Wearing of star-wheel gear piece 2 and motor power consumption, when serious even
Stuck phenomenon occurs；Gases at high pressure when the gap between the surface of star-wheel gear piece 2 and compressor housing is excessive in compression chamber
Can be by draining to the low-pressure side of compressor outside the gap.
The content of the invention
In view of the present situation of prior art, it is an object of the invention to provide a kind of helical-lobe compressor and air conditioner, and it compresses
Chamber good sealing effect, improves compressor efficiency, enhances compressor reliability.To achieve the above object, technology of the invention
Scheme is as follows：
A kind of helical-lobe compressor, including screw rotor, star-wheel and housing, the screw rotor and the star-wheel are placed in described
In housing, the helicla flute of the screw rotor is meshed with the star-wheel gear piece of the star-wheel, the star-wheel gear piece, the helicla flute
It is collectively forming the element volume of closing with the housing, the one side mutually sealed with the housing of the star-wheel gear piece is provided with more
Individual blind hole, multiple blind holes are in honeycomb arrangement；Or the one side mutually sealed with the housing of the star-wheel gear piece is set
There is coating.
In one of the embodiments, the blind hole is quadrilateral hole, hexagonal hole, octagon hole, circular port or triangle
Shape hole.
In one of the embodiments, the circumscribed circle diameter of the blind hole is less than the seal f ace width D of the housing.
In one of the embodiments, the depth of the blind hole is 0.05mm-0.2mm.
In one of the embodiments, the coating is silico-aluminum.
In one of the embodiments, the thickness of the coating is 0.5mm-0.8mm.
In one of the embodiments, the number of teeth of the star-wheel gear piece and the quantity of the helicla flute are mutual prime rwmber relation.
In one of the embodiments, the quantity of the star-wheel is two, and two star-wheels are separately positioned on the spiral shell
The both sides of bar rotor.
A kind of air conditioner is further related to, includes the helical-lobe compressor of any of the above-described technical scheme.
The beneficial effects of the invention are as follows：
The helical-lobe compressor and air conditioner of the present invention, the sealing structure that star-wheel gear piece contacts with housing use similar honeycomb close
Seal structure, turbulization effect when such high pressure draught passes through cellular band, increase air-flow damping action, simultaneously because cellular band
Special construction also produces adsorption effect and the blind hole of honeycomb type sealing structure can take away more lubricating oil, is more beneficial for oil film
Formed, can reach good sealing effectiveness；Coating layer is covered on the surface of star-wheel gear piece, because working surface is relatively soft, to impurity
Tolerance enhancing, when particle enters star-wheel gear piece and Housing seal surface, impurity easily enters coat, reduces and is drawn by impurity
The stuck phenomenon of compressor is played, greatly enhances the reliability of compressor.Pass through the raising of sealing property, the volume of compressor itself
Efficiency gets a promotion, so as to the reliability for lifting the efficiency of compressor, strengthening compressor.
Brief description of the drawings
Fig. 1 is the screw rod and meshing engagement schematic diagram of the helical-lobe compressor of prior art；
Fig. 2 is the axis view of the embodiment of helical-lobe compressor one of the present invention；
Fig. 3 is the close-up schematic view that the star-wheel of the embodiment of helical-lobe compressor one of the present invention coordinates with housing；
Fig. 4 is the sealing surface cooperation schematic diagram of star-wheel gear piece shown in Fig. 2 and housing；
Fig. 5 is the schematic perspective view of star-wheel gear piece shown in Fig. 2；
Fig. 6 is the partial enlarged drawing in B portions in Fig. 5.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
The helical-lobe compressor and air conditioner of the present invention is further elaborated.It should be appreciated that specific embodiment described herein
It is only used for explaining the present invention, is not intended to limit the present invention.
Reference picture 2 and Fig. 3, the helical-lobe compressor of one embodiment of the invention include screw rotor 1, star-wheel and housing 4, screw rod
Rotor 1 and star-wheel are placed in housing 4, wherein, housing 4 includes inwall 41 and outer wall 42, the helicla flute of screw rotor 1 and star-wheel
Star-wheel gear piece 2 is meshed, and star-wheel gear piece 2 is arranged on star-wheel support 21, star-wheel gear piece 2 and the synchronous axial system of star-wheel support 21.Star
The quantity of wheel is two, and two star-wheels are separately positioned on the both sides of screw rotor 1, the corresponding star-wheel gear piece 2 of each star-wheel.Star
Tooth slice 2, the helicla flute of screw rotor 1 are collectively forming the element volume 12 (compression chamber) of closing, housing with the inwall 41 of housing 4
4 with the contact surface of star-wheel gear piece 2 be sealing surface 43.During compressor operation, the star-wheel gear piece 2 on the both sides of screw rotor 1
Alternately engage with helicla flute and housing 4 is collectively forming the element volume 12 of closing, the rotation by screw rotor 1 around its axle 11,
The change of element volume 12 is driven, when element volume 12 (compression chamber) connects with exhaust outlet 3, compressor starts exhaust.
As shown in Figures 4 to 6, the one side sealed with the phase of housing 4 of star-wheel gear piece 2 is provided with multiple blind holes 22, multiple blind
Hole 22 is in honeycomb arrangement, and blind hole 22 is quadrilateral hole, hexagonal hole, octagon hole, circular port or tri-angle-holed.Blind hole 22
Depth is 0.05mm-0.2mm.Blind hole 22 in figure is regular hexagon, is used in the engagement tooth surface of each star-wheel gear piece 2 similar
The structure of honeycomb seal, the inner surface of sealing ring are the regularly arranged honeybees formed of honeycomb hole (blind hole 22) by regular hexahedron shape
Nest band is formed, and the circumscribed circle diameter of blind hole 22 is less than the width D of the sealing surface 43 of housing 4.So in actual moving process, ensure
When star-wheel gear piece 2 engages, the gases at high pressure in compression chamber will not directly be connected by the blind hole of regular hexahedron unit and leak into pressure
Contracting machine low-pressure side A；
The processing of star-wheel gear piece 2 can first punching press, the depth of blind hole 22 can then regrind star-wheel tooth more than 0.2mm during punching press
The surface of piece 2, ensure the flatness and the depth of blind hole 22 in honeycomb seal face.
As a kind of embodiment, the quantity of the number of teeth of star-wheel gear piece 2 and the helicla flute is mutual prime rwmber relation.So as to
Make the tooth of each star-wheel gear piece 2 there is equivalent chance to engage each helicla flute.Preferably, it is provided with screw rotor 1 described in 6
Helicla flute, star-wheel gear piece 2 have 11 teeth.
As a kind of embodiment, can also be not provided with blind hole 22 on star-wheel gear piece 2, but star-wheel gear piece 2 and shell
The one side of the phase of body 4 sealing is provided with coating, i.e., sets and apply on the surface for the star-wheel gear piece 22 being engaged with the sealing surface 43 of housing 4
Layer.The thickness of the coating is 0.5mm-0.8mm.Preferably, the coating is silico-aluminum, the i.e. surface in star-wheel gear piece 2
Coat one layer of silico-aluminum layer.Cover that the working surface of the star-wheel gear piece 2 after coating is relatively soft, the tolerance of impurity strengthened,
When particle enters the sealing surfaces of star-wheel gear piece 2 and housing 41, impurity easily enters coat, reduces and causes compressor by impurity
Stuck phenomenon, greatly enhance the reliability of compressor.
The invention further relates to a kind of air conditioner, include the helical-lobe compressor of any of the above-described technical scheme, because air conditioner removes
It is prior art outside the helical-lobe compressor, no longer repeats one by one herein.
The helical-lobe compressor and air conditioner of above example, the sealing structure that star-wheel gear piece contacts with housing are close using honeycomb
Envelope, turbulization effect when such high pressure draught passes through cellular band, increase air-flow damping action, simultaneously because cellular band is special
Structure also produces adsorption effect and the blind hole of honeycomb type sealing structure can take away more lubricating oil, is more beneficial for the shape of oil film
Into can reach good sealing effectiveness；Coating layer is covered on the surface of star-wheel gear piece, because working surface is relatively soft, to impurity
Tolerance strengthens, and when particle enters star-wheel gear piece with Housing seal surface, impurity easily enters coat, reduces and is caused by impurity
The stuck phenomenon of compressor, greatly enhance the reliability of compressor.By the raising of sealing property, the volume of compressor itself is imitated
Rate gets a promotion, so as to the reliability for lifting the efficiency of compressor, strengthening compressor.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
- A kind of 1. helical-lobe compressor, it is characterised in that：Including screw rotor, star-wheel and housing, the screw rotor and the star-wheel are placed in the housing, the screw rotor Helicla flute be meshed with the star-wheel gear piece of the star-wheel, the star-wheel gear piece, the helicla flute and the housing are collectively forming The element volume of closing, the one side mutually sealed with the housing of the star-wheel gear piece is provided with multiple blind holes, multiple described blind Hole is in honeycomb arrangement, the blind hole adsorpting lubrication oil, oil is formed in the one side mutually sealed with the housing of star-wheel gear piece Film layer.
- 2. helical-lobe compressor according to claim 1, it is characterised in that：The blind hole is quadrilateral hole, hexagonal hole, octagon hole, circular port or tri-angle-holed.
- 3. helical-lobe compressor according to claim 2, it is characterised in that：The circumscribed circle diameter of the blind hole is less than the seal f ace width D of the housing.
- 4. helical-lobe compressor according to claim 2, it is characterised in that：The depth of the blind hole is 0.05mm-0.2mm.
- 5. according to the helical-lobe compressor described in claim any one of 1-4, it is characterised in that：The number of teeth of the star-wheel gear piece and the quantity of the helicla flute are mutual prime rwmber relation.
- 6. helical-lobe compressor according to claim 5, it is characterised in that：The quantity of the star-wheel is two, and two star-wheels are separately positioned on the both sides of the screw rotor.
- A kind of 7. air conditioner, it is characterised in that：Including the helical-lobe compressor described in claim any one of 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413426.XA CN105443379B (en) | 2014-08-20 | 2014-08-20 | Helical-lobe compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410413426.XA CN105443379B (en) | 2014-08-20 | 2014-08-20 | Helical-lobe compressor and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443379A CN105443379A (en) | 2016-03-30 |
| CN105443379B true CN105443379B (en) | 2018-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410413426.XA Active CN105443379B (en) | 2014-08-20 | 2014-08-20 | Helical-lobe compressor and air conditioner |
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| CN (1) | CN105443379B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194725A (en) * | 2016-08-08 | 2016-12-07 | 苏州利森空调制冷有限公司 | Single Spiral Lobe Refrigeration Compressor rotor and preparation method thereof |
| CN106194726A (en) * | 2016-08-08 | 2016-12-07 | 苏州利森空调制冷有限公司 | Refrigeration system compressor main rotor and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470777A (en) * | 1981-06-17 | 1984-09-11 | Bernard Zimmern | Volumetric machine with screw and pinion-wheels |
| CN101153596A (en) * | 2006-09-29 | 2008-04-02 | 上海开利涡普机械有限公司 | Compound spider piece used for single-screw compressor |
| CN101660526A (en) * | 2009-09-16 | 2010-03-03 | 北京力通高科技发展有限公司 | Flexible meshing pair of single screw compressor |
| CN102179662A (en) * | 2011-04-27 | 2011-09-14 | 沈阳北碳密封有限公司 | Method for processing diamond-shaped hexagonal honeycombs of honeycomb steam seal |
| CN103557328A (en) * | 2013-10-08 | 2014-02-05 | 中国科学院金属研究所 | Combined honeycomb seal made of polyether-ether-ketone resin materials and method for manufacturing combined honeycomb seal |
| CN204099199U (en) * | 2014-08-20 | 2015-01-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Helical-lobe compressor and air conditioner |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10006269A1 (en) * | 2000-02-12 | 2001-08-16 | Bayerische Motoren Werke Ag | Method for producing a metal component for a drive unit, in particular an internal combustion engine, which interacts with a friction partner via a sliding surface |
-
2014
- 2014-08-20 CN CN201410413426.XA patent/CN105443379B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470777A (en) * | 1981-06-17 | 1984-09-11 | Bernard Zimmern | Volumetric machine with screw and pinion-wheels |
| CN101153596A (en) * | 2006-09-29 | 2008-04-02 | 上海开利涡普机械有限公司 | Compound spider piece used for single-screw compressor |
| CN101660526A (en) * | 2009-09-16 | 2010-03-03 | 北京力通高科技发展有限公司 | Flexible meshing pair of single screw compressor |
| CN102179662A (en) * | 2011-04-27 | 2011-09-14 | 沈阳北碳密封有限公司 | Method for processing diamond-shaped hexagonal honeycombs of honeycomb steam seal |
| CN103557328A (en) * | 2013-10-08 | 2014-02-05 | 中国科学院金属研究所 | Combined honeycomb seal made of polyether-ether-ketone resin materials and method for manufacturing combined honeycomb seal |
| CN204099199U (en) * | 2014-08-20 | 2015-01-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Helical-lobe compressor and air conditioner |
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| CN105443379A (en) | 2016-03-30 |
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Effective date of registration: 20181126 Address after: 519070 golden hill road, Qianshan, Zhuhai, Guangdong Co-patentee after: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. Patentee after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 Science and Technology Building No. 789 Jinji Road, Qianshan, Zhuhai City, Guangdong Province Patentee before: Zhuhai Gree Energy Saving & Refrigerating Technology Resarch Center Co., Ltd. |