CN100335783C - Lubricant supplying device of reciprocating compressor - Google Patents

Lubricant supplying device of reciprocating compressor Download PDF

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Publication number
CN100335783C
CN100335783C CNB2004100577227A CN200410057722A CN100335783C CN 100335783 C CN100335783 C CN 100335783C CN B2004100577227 A CNB2004100577227 A CN B2004100577227A CN 200410057722 A CN200410057722 A CN 200410057722A CN 100335783 C CN100335783 C CN 100335783C
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CN
China
Prior art keywords
oil
support
gas cylinder
compressor
piston
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Expired - Fee Related
Application number
CNB2004100577227A
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Chinese (zh)
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CN1580557A (en
Inventor
金炯锡
金烔汉
金炳稷
金炯镇
卢基元
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LG Electronics Inc
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LG Electronics Inc
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Publication date
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Publication of CN1580557A publication Critical patent/CN1580557A/en
Application granted granted Critical
Publication of CN100335783C publication Critical patent/CN100335783C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02—Lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • F16N13/06—Actuation of lubricating-pumps
    • F16N13/18—Actuation of lubricating-pumps relative movement of pump parts being produced by inertia of one of the parts or of a driving member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/10—Refrigerators

Abstract

A lubricating oil supply apparatus of a reciprocating compressor comprises: an oil cylinder penetratingly-formed at a lower side of a frame, for supporting a compression unit which compresses a fluid; an oil piston reciprocatingly-inserted into the oil cylinder and reciprocated by a vibration of the compressor, for pumping lubricating oil; a spring connected to a rear side of the oil piston and providing an elastic force to the oil piston; and a valve assembly disposed at a front side of the frame, for opening and closing a passage of lubricating oil supplied to a sliding part of the compressing unit. A dead volume existing at the oil supply apparatus is reduced thereby to smoothly supply lubricating oil even at the time of an initial driving that requires less pumping amount, thereby enhancing a lubricating performance.

Description

The oil feeding device of reciprocal compressor
Technical field
The present invention relates to a kind of oil feeding device of reciprocal compressor, a kind of especially like this oil feeding device of reciprocal compressor, this oil feeding device can strengthen oil supply performance, and can reduce manufacture cost by reducing number of components.
Background technique
Usually, according to the method for compressed fluid, compressor is divided into rotary compressor, reciprocal compressor and scroll compressor.
Fig. 1 is the sectional view according to reciprocal compressor of the present invention.
Traditional reciprocal compressor comprises: 106, one suction pipes 102 of a shell link to each other with shell 106 with a discharge tube 104, and hold lubricant oil at outer casing underpart; A reciprocable machine 108 that is arranged in shell 106 inside is used to produce reciprocating force; One by receiving the reciprocating force compressed fluid compression unit 110 that is produced by reciprocable machine 108; Be used to support the holder device 112,114 and 116 of reciprocable machine 108 and compression unit 110; A lubricating oil supply device, the lubricant oil that is used for holding in the shell 106 are conducted to each friction means of compressor; Or the like.
Reciprocable machine 108 comprises: a cylindrical external stator 118, and the winding coil of the energising of reeling on it; An inner stator 120 is arranged in the inner circumferential surface of external stator 118 with certain air gap; And be arranged in magnet 124 between external stator 118 and the inner stator 120 at certain intervals, be used for when winding coil 122 energisings, carrying out to-and-fro motion linearly.
Magnet 124 is with the external peripheral surface of equal fixed interval to magnet holder 126, and the piston 128 of magnet holder 126 and compression unit 110 forms.
One first resonant spring 134 and one second resonant spring 136 are arranged between side surface of magnet holder 126 and the support 112 and between the opposite side surface and support 116 of magnet holder 126, to cause the resonance motion of piston 128.
Compression unit 110 comprises with magnet holder 126 and linking to each other and linear pistons reciprocating 128; Piston 128 slip insertions cylinder 142 wherein, and this cylinder forms a pressing chamber 140; A suction valve 146 that is used to open and close the inlet that is installed in piston 128 front sides; And a discharge valve assembly 148 that is installed in cylinder 142 front sides, be used for when the pressure in the pressing chamber 140 surpasses predetermined pressure, the fluid that compresses being drained into the outside.
Discharge valve assembly 148 comprises: an expulsion valve 150 that is connected to cylinder 142 front side surfaces is used to discharge compressed fluid; A discharge cap 152 that is installed on cylinder 142 front sides, and this discharge cap links to each other with the expulsion valve 104 that is used to discharge fluid; And one be arranged in the inner surface of discharge cap 152 and the spring 154 between the expulsion valve 150, is used for flexibly supporting expulsion valve 150.
Support comprises: first support 112 that is fixed in cylinder 142 external peripheral surfaces is used for fixing the front side of reciprocable machine 108; Second support 114 that is used to support reciprocable machine 108 rear sides; And the 3rd support 116 that links to each other with second support 114, be used to support second resonant spring 136.
The lubricating oil supply device that is used for the lubricant oil that shell 106 bottoms hold is conducted to the slide member between cylinder 142 and the piston 128 comprises: a pumping unit 160 that is fixed on first support, 112 1 sides is used for the vibration pumping lubricant oil that produces when the Driven Compressor by using; A valve assembly 164 is used to open and close the passage by the lubricant oil of pumping unit 160 pumpings; And a lubricant oil service duct 166 that is formed on first support 112, be used for lubricant oil is conducted to slide member between cylinder 142 and the piston 128.
Pumping unit 160 comprises: an oil gas cylinder 170 that is fixed on first support, 112 bottoms; An oily piston 172 that is arranged in the oil gas cylinder 170, this oil piston 172 can move linearly and can be used for pumping lubricant oil by the vibration to-and-fro motion of compressor; And the spring 174 and 176 that is used for flexibly supporting oily piston 172 both sides.
Valve assembly 164 comprises: an oil cap 182 that is installed in first support, 112 front sides, and be provided with grease channel 180 in this oil cap 182, can pass through lubricant oil in this grease channel 180; A suction valve 184 that is arranged in the oil cap 182 is used to open and cut out the inlet that sucks lubricant oil; An expulsion valve 186 that is arranged in the oil cap 182 is used to open and cuts out and discharge the lubricated oil outlet of compression; And a suction pipe 188 that is installed in oil cap 182, be used to suck the lubricant oil that is contained in shell 106 bottoms.
First support 112 is provided with the oilhole 190 that links to each other with oil gas cylinder 170, is used for sucking and removal of lubricant.
Fig. 2 A and 2B show the sectional view according to the lubricating oil supply device working state of the reciprocal compressor of conventional art.
The work of the lubricating oil supply device of traditional reciprocal compressor will be described below.
Shown in Fig. 2 A, in case when the vibration that oily piston 172 produced when being driven owing to compressor retreats, then can produce suction pressure.By this suction pressure, suction valve 184 is opened, and lubricant oil sucks by suction pipe 188 simultaneously.Lubricant oil is introduced oil gas cylinder 170 by the oilhole 190 that is formed on first support 112.
Then, shown in Fig. 2 B, when the vibration that produces when oily piston 172 is driven owing to compressor advanced, the lubricant oil that therefore are contained in the cylinder 170 were discharged by oilhole 190, and suction valve 184 cuts out, and expulsion valve 186 is opened simultaneously.In view of the above, lubricant oil is conducted to slide member between cylinder 142 and the piston 128 by lubricant oil service duct 166, therefore is lubricated work.
Yet, in the lubricating oil supply device of traditional reciprocal compressor, the oilhole 190 that is used for lubricant oil is sucked oil gas cylinder 170 and removal of lubricant is formed on first support 112, and need be used for spring 174 is installed in the space of oily piston 172 front sides.Therefore, the installing space of oilhole 190 and spring 174 becomes dead volume.Because useless volume is arranged, in the less situation of vibratory output, for example when the compressor initial driving, can not smoothly lubricant oil be conducted to slide member, therefore the slide member at compression unit produces friction.
In addition, in the lubricating oil supply device of traditional reciprocal compressor, the pumping unit 160 that is used for pumping lubricant oil has a large amount of parts and complicated structure and assembly process, has therefore increased manufacture cost.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of lubricating oil supply device of reciprocal compressor, this device can improve greasy property by the dead volume that minimizing be present in oily feeding mechanism, even and therefore supplying lubricating oil glossily when the initial driving of the little pump output of needs.
Another object of the present invention aims to provide a kind of lubricating oil supply device of reciprocal compressor, thereby this device can improve assembly features and reduce manufacture cost by the pump structure that simplification is used for pumping lubricant oil.
For realizing these and other advantage and according to purpose of the present invention, here do and specialize and briefly description, here provide a kind of lubricating oil supply device of reciprocal compressor to comprise: one penetrates the oil gas cylinder that is formed on the support downside, and support is used to support the compression unit of compressed fluid; One is back and forth inserted oil gas cylinder and can be used for pumping lubricant oil by the reciprocating oily piston of vibration of compressor; A spring that links to each other with oily piston rear side, it provides elastic force to oily piston; And a valve assembly that is arranged in the support front side, be used to open and close the grease channel that is conducted to the compression unit movable part.
Longitudinal direction oil gas cylinder at compressor penetrates the downside that is formed on support, and this oil gas cylinder is arranged in the position that is higher than the lubricant oil surface that is contained in the compressor case bottom.
The oil piston is arranged highlightedly towards the oil gas cylinder rear side.
Spring forms leaf spring, and the one side links to each other with the rear side of oily piston, and the opposite side of spring links to each other with support.
By below in conjunction with the accompanying drawing detailed description of the invention, other purpose aforementioned and of the present invention, characteristics, aspect and advantage will become more obvious.
Description of drawings
Accompanying drawing provides further to be understood of the present invention, incorporates and form the part of specification into, description of drawings embodiments of the invention, and with specification in order to illustrate principle of the present invention.
In the accompanying drawings:
Fig. 1 shows the sectional view according to the reciprocal compressor of conventional art;
Fig. 2 A and 2B show the sectional view according to the lubricating oil supply device working state of the reciprocal compressor of conventional art;
Fig. 3 shows the sectional view of reciprocal compressor according to an embodiment of the invention; And
Fig. 4 A and 4B show the sectional view according to the lubricating oil supply device working state of reciprocal compressor of the present invention.
Embodiment
To describe the preferred embodiments of the present invention in detail below, example of the present invention be shown in the accompanying drawing.
Hereinafter, with an embodiment who describes in detail with reference to the accompanying drawings according to reciprocal compressor of the present invention.
Although have a plurality of preferred embodiments, will describe most preferred embodiment hereinafter according to reciprocal compressor of the present invention.
Fig. 3 shows the sectional view of reciprocal compressor according to an embodiment of the invention.
Reciprocal compressor according to the present invention comprises: one has the shell 6 that the space is closed in certain sealing, and the suction pipe 2 that is used to suck fluid links to each other with shell with the discharge tube 4 that is used to discharge compressed fluid, and holds lubricant oil at outer casing underpart; A reciprocable machine 8 that is arranged in shell 6 inside is used for producing reciprocating force when energising; One by receiving the compression unit 10 of compressed fluid by the reciprocating force of reciprocable machine 8 generations; Be used to support the bracket component 12,14 and 16 of reciprocable machine 8 and compression unit 10; And a lubricating oil supply device, the lubricant oil that is used for being contained in shell 6 bottoms is conducted to the slide member of compressor 10.
Reciprocable machine 8 comprises: a columniform external stator 18; Inner stator 20 between inner circumferential surface that is arranged in external stator 18 with certain air gap; Winding coil 22 on external stator 18 or the inner stator 20 is used for being created in the flux between external stator 18 and the inner stator 20 when energising; And the magnet 24 that reciprocally is arranged in the air gap between external stator 18 and the inner stator 20.
Magnet 24 is fixed in the external peripheral surface of magnet holder 26 with identical distance, and the piston 30 of magnet holder 26 and compression unit 10 forms.
One first resonant spring 48 and one second resonant spring 50 are arranged between side surface of magnet holder 26 and the support 12 and between the opposite side surface and support 16 of magnet holder 26, thereby cause the resonance motion of piston 30.
Compression unit 10 comprises with magnet holder 26 and linking to each other and pistons reciprocating 30; Piston 30 slip insertions cylinder 34 wherein, and cylinder 34 forms certain pressing chamber 32; A suction valve 38 that is used to open and close the inlet of the front side that is installed in piston 30; And a discharge valve assembly 36 that is installed in cylinder 34 front sides, be used for when the pressure in the pressing chamber 32 surpasses predetermined pressure, the fluid that compresses being drained into the outside.
Discharge valve assembly 36 comprises: an expulsion valve 40 that contacts with cylinder 34 front side surfaces, but and its opening/closing discharge the outlet of compressed fluid; A discharge cap 42 that is installed on cylinder 34 front sides, and discharge cap links to each other with expulsion valve 4; And one be arranged in the inner surface of discharge cap 42 and the spring 44 between the expulsion valve 40, is used for flexibly supporting expulsion valve 40.
Support comprises: first support 12 that is fixed in cylinder 34 external peripheral surfaces, and a side surface of this stent support reciprocable machine 8; Second support 14 that is used to support reciprocable machine 8 opposite side surfaces; And the 3rd support 16 that is used to support second resonant spring 50.
Lubricating oil supply device comprises: a pumping unit 50 that is fixed on first support, 12 downsides is used for the vibration pumping lubricant oil by producing when the Driven Compressor; An oil valve assembly 52 is used to open and close the passage by the lubricant oil of pumping unit 50 pumpings; And a lubricant oil service duct 54 that is formed on first support 12, be used for lubricant oil is conducted to slide member between cylinder 34 and the piston 30.
Pumping unit 50 comprises: one penetrates the oil gas cylinder 56 that is formed on first support, 12 bottoms; The linear reciprocating oily piston 58 of vibration that inserts in the oil gas cylinder 56 and can pass through compressor be used for pumping lubricant oil; And an oily spring 60 that links to each other with oily piston 58 rear surfaces, be used for flexibly supporting oily piston 58.
At the longitudinal direction of compressor, oil gas cylinder 56 penetrates the downside that is formed on first support 12, and oil gas cylinder 56 is arranged in the position that is higher than the lubricant oil surface of holding in shell 6 bottoms.Because when the support 12,14 with large surface area can produce noise and steam when 16 contact with lubricant oil, so be to make oil gas cylinder 56 can not be immersed in the lubricant oil with the reason that oily piston 56 is arranged in the position that is higher than the lubricant oil surface of holding in shell 6 bottoms.
Oil piston 58 linearities are inserted oil gas cylinder 56 movably, and arrange highlightedly with certain-length towards the rear side of first support 12.
One side of oil spring 60 links to each other with oily piston 58, and opposite side links to each other with first support 12, provides elastic force to oily piston 58 whereby when oily piston 58 to-and-fro motion.
Oil spring 60 is preferably formed and is leaf spring.
Oil valve assembly 52 comprises: an oil cap 72 that is installed in first support, 12 front sides, and be provided with grease channel 70 in this oil cap 72, can pass through lubricant oil in this grease channel 70; An oily suction valve 74 that is arranged in the oil cap 72 is used to open and cut out the inlet that sucks lubricant oil; An oily expulsion valve 76 that is arranged in the oil cap 72 is used to open and cuts out and discharge the lubricated oil outlet of compression; And a suction pipe 78 that is installed in oil cap 72, be used to suck the lubricant oil that is contained in shell 6 bottoms.
Fig. 4 A and 4B show the sectional view according to the lubricating oil supply device working state of reciprocal compressor of the present invention.
Work according to lubricating oil supply device of the present invention will be described below.
Shown in Fig. 4 A, in case oily piston 58 is because the vibration that compressor produces when being driven and retreating in the oil gas cylinder 56 that is formed on first support 12 then can produce suction pressure.By this suction pressure, oily suction valve 74 is opened, and lubricant oil sucks oil gas cylinder 56 by suction pipe 78 simultaneously.
Then, shown in Fig. 4 B, when the vibration that produces advances, therefore discharge the lubricant oil that is contained in the oil gas cylinder 56 when oily piston 58 is driven owing to compressor.In view of the above, oily suction valve 74 cuts out, and simultaneously oily expulsion valve 76 is opened, so lubricant oil is conducted to slide member between cylinder 34 and the piston 30 by lubricant oil service duct 54, thereby is lubricated work.
In the lubricating oil supply device according to reciprocal compressor of the present invention, oil gas cylinder is formed on first support, and therefore oil gas cylinder is directly connected to each other with the grease channel that is formed in the oil cap.Equally, removed the spring that is arranged in oily piston front side and also therefore dead volume has been reduced to minimum.In view of the above, even when the very little situation of lubricant oil pumping amount also supplying lubricating oil glibly, for example during the compressor initial driving.
In addition, oil gas cylinder is formed directly into first support and spring only is located at the rear side of oily piston, so has simplified the structure of pumping unit, thereby has reduced number of components, has improved assembling characteristics, and has reduced fabricating cost.
Because the present invention can implement under the situation that does not break away from spirit of the present invention or essential feature in many ways, it will also be appreciated that above-mentioned embodiment is not limited by any details of aforementioned specification, unless it is dated especially, can very wide in range explanation in the defined spirit and scope of claims, therefore belong to the border of claim and the institute in the scope and change and revise, therefore the equivalent structure of perhaps this border and scope also is contained in the appended claim.

Claims (7)

1. the lubricating oil supply device of a reciprocal compressor comprises:
One penetrates the oil gas cylinder that is formed on the support downside, and support is used to support the compression unit of compressed fluid;
The reciprocating oily piston of vibration that back and forth inserts oil gas cylinder and pass through compressor is used for pumping lubricant oil;
A spring that is installed in the oil gas cylinder outside and links to each other with oily piston rear side, it provides elastic force to oily piston; And
A valve assembly that is arranged in the support front side is used to open and close the grease channel that is conducted to the compression unit slide member.
2. device according to claim 1, wherein the longitudinal direction oil gas cylinder at compressor penetrates the downside that is formed on support.
3. device according to claim 1, wherein oil gas cylinder is arranged in the position that is higher than the lubricant oil surface that is contained in the compressor case bottom.
4. according to the device of claim 1, wherein oily piston is arranged highlightedly towards the oil gas cylinder rear side.
5. device according to claim 1, a side of its medi-spring links to each other with the rear side of oily piston, and the opposite side of spring links to each other with support.
6. device according to claim 5, its medi-spring forms leaf spring.
7. device according to claim 1, wherein this spring only is configured in oily piston rear side.
CNB2004100577227A 2003-08-11 2004-08-11 Lubricant supplying device of reciprocating compressor Expired - Fee Related CN100335783C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2003-0055502A KR100524723B1 (en) 2003-08-11 2003-08-11 Oil supply apparatus for reciprocating compressor
KR55502/2003 2003-08-11

Publications (2)

Publication Number Publication Date
CN1580557A CN1580557A (en) 2005-02-16
CN100335783C true CN100335783C (en) 2007-09-05

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CNB2004100577227A Expired - Fee Related CN100335783C (en) 2003-08-11 2004-08-11 Lubricant supplying device of reciprocating compressor

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US (1) US20050034926A1 (en)
JP (1) JP2005061411A (en)
KR (1) KR100524723B1 (en)
CN (1) CN100335783C (en)
DE (1) DE102004037894B4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147959A (en) * 2011-12-07 2013-06-12 中国科学院理化技术研究所 Oil supply device of linear compressor
CN105673452A (en) * 2014-11-21 2016-06-15 青岛海尔智能技术研发有限公司 Linear compressor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050071254A (en) * 2003-12-31 2005-07-07 엘지전자 주식회사 Apparatus for supplying oil of reciprocating compressor
KR100688671B1 (en) * 2005-11-30 2007-03-02 엘지전자 주식회사 Noise reducing structure for scroll compressor
KR100660687B1 (en) * 2006-01-16 2006-12-21 엘지전자 주식회사 Oil pumping structure for linear compressor
KR20070075897A (en) * 2006-01-16 2007-07-24 엘지전자 주식회사 Oil valve assembly of linear compressor
CN113374625B (en) * 2021-06-08 2022-07-05 东莞市德玛电子有限公司 Offshore wind turbine generator system

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CN1285897A (en) * 1998-11-04 2001-02-28 Lg电子株式会社 Opening and closing system for oil path of linear compressor
CN1292067A (en) * 1998-12-28 2001-04-18 Lg电子株式会社 Oil supply unit for linear compressor
CN1326051A (en) * 2000-05-29 2001-12-12 Lg电子株式会社 Linear compressor

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DE19921293C2 (en) * 1998-05-12 2002-06-13 Lg Electronics Inc Oil supply device for a linear compressor
KR100273422B1 (en) * 1998-05-12 2001-01-15 구자홍 Oil supplier of linear compressor
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Publication number Priority date Publication date Assignee Title
CN1240255A (en) * 1998-05-07 2000-01-05 Lg电子株式会社 Oil supplying apparatus for linear compressor
CN1285897A (en) * 1998-11-04 2001-02-28 Lg电子株式会社 Opening and closing system for oil path of linear compressor
CN1292067A (en) * 1998-12-28 2001-04-18 Lg电子株式会社 Oil supply unit for linear compressor
CN1326051A (en) * 2000-05-29 2001-12-12 Lg电子株式会社 Linear compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147959A (en) * 2011-12-07 2013-06-12 中国科学院理化技术研究所 Oil supply device of linear compressor
CN103147959B (en) * 2011-12-07 2015-09-16 中国科学院理化技术研究所 The oil supplying device of Linearkompressor
CN105673452A (en) * 2014-11-21 2016-06-15 青岛海尔智能技术研发有限公司 Linear compressor
CN105673452B (en) * 2014-11-21 2019-09-17 青岛海尔智能技术研发有限公司 A kind of linear compressor

Also Published As

Publication number Publication date
JP2005061411A (en) 2005-03-10
DE102004037894B4 (en) 2009-12-10
KR20050017932A (en) 2005-02-23
KR100524723B1 (en) 2005-10-31
CN1580557A (en) 2005-02-16
US20050034926A1 (en) 2005-02-17
DE102004037894A1 (en) 2005-03-24

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Granted publication date: 20070905