CN102367796A - Horizontal scroll compressor main shaft rear-end sealing structure - Google Patents

Horizontal scroll compressor main shaft rear-end sealing structure Download PDF

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Publication number
CN102367796A
CN102367796A CN2011102736478A CN201110273647A CN102367796A CN 102367796 A CN102367796 A CN 102367796A CN 2011102736478 A CN2011102736478 A CN 2011102736478A CN 201110273647 A CN201110273647 A CN 201110273647A CN 102367796 A CN102367796 A CN 102367796A
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CN
China
Prior art keywords
oil
oil sealing
bearing
sealing
hole
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011102736478A
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Chinese (zh)
Inventor
罗岳华
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Hunan Vaqoung Electric Co Ltd
Original Assignee
Hunan Vaqoung Electric Co Ltd
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Publication date
Application filed by Hunan Vaqoung Electric Co Ltd filed Critical Hunan Vaqoung Electric Co Ltd
Priority to CN2011102736478A priority Critical patent/CN102367796A/en
Publication of CN102367796A publication Critical patent/CN102367796A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a horizontal scroll compressor main shaft rear-end sealing structure, comprising a casing, a main shaft, a main shaft rear bearing, a bearing pedestal, an oil sealing, and an oil pipeline, wherein, the main shaft comprises a central oil passage, the bearing pedestal is connected with the casing, the rear portion of the bearing pedestal comprises an oil storage chamber, the oil pipeline is connected with the oil storage chamber from the rear end of the bearing pedestal, the main shaft rear bearing is a rolling bearing, the bearing pedestal comprises an oil sealing hole, the outer ring of the oil sealing is arranged in the oil sealing hole of the bearing pedestal, the oil storage chamber is arranged behind an oil sealing lip mouth, the rear end of the main shaft comprises an oil sealing shaft neck, and the oil sealing shaft neck is inserted in the oil storage chamber through the oil sealing lip mouth. The material used in the main body of the oil sealing is a composite high-molecular material containing polytetrafluoroethylene, carbon fiber and graphite. The invention has the advantages of small rotating resistance, low failure rate and long service life, and is especially suitable for the horizontal high speed scroll compressor.

Description

A kind of horizontal type scroll compressor rear-end of spindle sealing configuration
The application is that invention is divided an application, and the application number of this division application original bill is 201110109477.X, and the applying date is on February 28th, 2011, and denomination of invention is " a kind of encapsulating method of horizontal type scroll compressor rear-end of spindle and a sealing configuration ".
[technical field]
The present invention relates to scroll compressor, relate in particular to a kind of horizontal type scroll compressor rear-end of spindle sealing configuration.
[background technique]
The lubrication system of scroll compressor adopts the pressure reduction fuel system, and quite a few need need lubricated component through the central oil passage flow direction of main shaft the lubricant oil that from the oil sump of compressor bottom, flows out.Vertical for horizontal type scroll compressor, because the lower end of main shaft can be immersed in the oil sump, there is not the difficulty of sealing.Yet; For horizontal type scroll compressor, because main shaft is a horizontal arrangement, the rear end of main shaft is higher than the pasta of oil sump; Need the lubricant oil in the oil sump be guided in the central oil passage of main shaft with oil pipe and go; Because main shaft is the speed rotation, static oil pipe need be connected with the main shaft that rotates, and just needs to solve the sealing problem of axle head.
As shown in Figure 3; The sealing configuration of existing horizontal type scroll compressor main shaft oil-feed position fuel supply chamber is that the lower end is immersed in the fuel supply chamber B in the oil pipe 6 upper joint-shaft bearing bonnets 8 in the oil sump, sliding bearing 20 supportings of the rear end employing sphere of main shaft 2; Ring is fixed on the axle journal of main shaft 2 in the sliding bearing 20; The sliding bearing inside and outside ring is fixed on the bearing support, forms sealing surface between the sliding bearing inside and outside ring, and the front portion of the fuel supply chamber B that is communicated with alignment of shafts oil duct 201 in the bonnet 8 is sealed.
The shortcoming of this sealing configuration is, big as sliding bearing 8 diameters of axle envelope, surface of contact is big, and rotational resistance is big, and transmission efficiency is low; Because rotational resistance is big, the compressor that is not suitable for running up is like frequency-changeable compressor; The working life of sliding bearing is low, and rate of fault is high.
[summary of the invention]
The technical problem that the present invention will solve provides the sealing configuration of the horizontal type scroll compressor rear-end of spindle that a kind of rotational resistance is little, high life can be fit to high speed compressor.
In order to solve the problems of the technologies described above, the technological scheme that the present invention adopts is a kind of horizontal type scroll compressor rear-end of spindle sealing configuration; Comprise casing, main shaft, mainshaft rear bearing, bearing support, oil sealing and transport pipe, described main shaft comprise central oil passage, and described bearing support is connected with casing; The rear portion of said bearing support comprises shoe cream room; Described transport pipe connects described shoe cream room from the rear end of bearing support, and described mainshaft rear bearing is a rolling bearing, and described bearing support comprises that oil sealing holds the hole; The oil sealing that the outer ring of said oil sealing is installed in bearing support holds in the hole, and described shoe cream room is positioned at the back of oil seal lip; The rear end of main shaft comprises the oil sealing axle journal, and described oil sealing axle journal passes the lip of oil sealing, inserts described shoe cream room; The material of said oil sealing main body is to contain the composite high-molecular material that gathers tetrem alkene, carbon fiber and graphite.
Above-described horizontal type scroll compressor rear-end of spindle sealing configuration; Described bearing support comprises body, bearing cap and bonnet; Described body comprises that bearing holds the hole; The outer ring of said rolling bearing is fixed on described bearing and holds in the hole, on the installation axle journal at the main shaft rear portion that the inner ring of said rolling bearing is fixed on; Described bearing cap is fixed on the rear end of said body, and the endoporus of bearing cap is a through hole, and described through hole comprises that described oil sealing holds the hole; Described bonnet is fixed on the rear end of bearing cap, comprises the mounting hole of said transport pipe on the bonnet, and the logical described oil sealing of described mounting hole holds the hole.
Above-described horizontal type scroll compressor rear-end of spindle sealing configuration, the diameter of described oil sealing axle journal is less than the installation axle journal of 1/2nd bearings.
Above-described horizontal type scroll compressor rear-end of spindle sealing configuration comprises the oil sealing jump ring, and described through hole comprises the jump ring groove, and described oil sealing jump ring is installed in the jump ring groove, and the front end of oil sealing props up described oil sealing jump ring.
Above-described horizontal type scroll compressor rear-end of spindle sealing configuration comprises oil baffle, and the periphery of said oil baffle is fixed on the described casing, and the body-fixed of said bearing support is on oil baffle.
Above-described horizontal type scroll compressor rear-end of spindle sealing configuration, the rear end of said oil sealing axle journal comprise oil sealing installation chamfering.
Above-described horizontal type scroll compressor rear-end of spindle sealing configuration, said oil sealing are lips formula outside framework oil seals.
The back axle head of horizontal type scroll compressor rear-end of spindle sealing configuration main shaft of the present invention adopts rolling bearing supporting, oil sealing sealing; Little, the high life of the rotational resistance of rolling bearing and oil sealing; Rotational resistance of the present invention is little, rate of fault is low; High life is particularly suitable for the horizontal high-speed scroll compressor.
[description of drawings]
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation.
Fig. 1 is a horizontal type scroll compressor rear-end of spindle sealing configuration embodiment's of the present invention structural drawing.
Fig. 2 is the partial enlarged drawing at I position among Fig. 1.
Fig. 3 is the schematic representation of existing technology formula scroll compressor rear-end of spindle sealing configuration.
[embodiment]
In the embodiment of horizontal type scroll compressor rear-end of spindle sealing configuration of the present invention shown in Figure 1, the rear portion of horizontal type scroll compressor comprises
Comprise casing 1, main shaft 2, mainshaft rear bearing 3, bearing support, oil sealing 4 and transport pipe 5, bearing support comprise body 6, bearing cap 7 and bonnet 8.The inner shaft of main shaft 2 to central oil passage 201.
The inner chamber A at casing rear portion is a hyperbaric chamber, and there is outlet pipe 101 at the rear portion of casing 1.
The periphery of oil baffle 10 is weldingly fixed on the casing 1, and the body 6 of bearing support passes through screw on oil baffle 10.
Mainshaft rear bearing 3 is ball bearings.The endoporus of body 6 is that the bearing of mainshaft rear bearing 3 holds the hole, and the bearing that the outer ring of mainshaft rear bearing 3 is fixed on body 6 holds in the hole, and the inner ring of mainshaft rear bearing 3 is fixed on the Bearing Installation axle journal 202 at main shaft 2 rear portions.
In the rear end of body 6, the endoporus of bearing cap 7 is a through hole to bearing cap 7 through screw, and this through hole is that oil sealing holds the hole, and the oil sealing that the outer ring of oil sealing 4 is installed in bearing cap 7 holds in the hole.
Bonnet 8 in the rear end of bearing cap 7, has the mounting hole of transport pipe 5 through screw on the bonnet 8, the front end of mounting hole holds the hole with oil sealing and communicates.The upper end of transport pipe 5 connects the mounting hole on the bonnet 8, and insert in the oil sump of casing 1 bottom the lower end.
Oil sealing 4 is lips formula outside framework oil seals; The material of oil sealing 4 main bodys is a composite high-molecular material; Composite high-molecular material can be to contain the composite high-molecular material that gathers tetrem alkene, carbon fiber and graphite; Thisly contain the oil sealing that the composite high-molecular material that gathers tetrem alkene, carbon fiber and graphite processes not only surface friction drag is little, and long service life.
The rear-most end of main shaft is the oil sealing axle journal 203 that cooperates with oil sealing 4, and there is 1 big chamfering 204 rear end of oil sealing axle journal 203, is convenient to axle journal 204 and is inserted in the oil sealing.
During constituting, space between oil sealing 4 and the bonnet 8 presses shoe cream room B.The oil sealing axle journal 203 of main shaft 2 rear ends passes the lip of oil sealing 4, presses shoe cream room B in the insertion.
In order further to reduce the rotational resistance of main shaft, adopt the oil sealing axle journal of trying one's best little, the diameter of oil sealing axle journal 203 is less than the installation axle journal 202 of 1/2nd bearings.
The jump ring groove is arranged in the endoporus of bearing cap 7, and oil sealing jump ring 9 is installed in the jump ring groove, and the front end of oil sealing 4 props up oil sealing jump ring 9, and the rear end of oil sealing 4 has bonnet 8 that oil sealing 4 is fixing.
This structure is installed main shaft 2 and bearing 3 earlier when mounted, is screwed the bearing cap 7 that has oil sealing jump ring 9 then.Installing behind the bearing cap 7 ecto-entad holds to oil sealing oil sealing 4 is installed in the hole again.Because oil sealing axle journal 203 has big chamfering 204 guiding, oil sealing can successfully be installed, at last that bonnet 8 is fixing.
The back axle head of present embodiment horizontal type scroll compressor rear-end of spindle sealing configuration main shaft adopts mainshaft rear bearing supporting, oil sealing sealing.Ball bearing is compared with sliding bearing, allows higher rotating speed; Sealed member is bearing load not, and axle envelope and the axle journal diameter that cooperates with oil sealing are all less, allow high rotational speed, and arranged higher working life; Oil sealing adopts the lips formula outside framework oil seal of composite high-molecular material, and friction factor is low, and traditional efficiency is high.So little, the accessory high life of horizontal type scroll compressor main axis rotation resistance of present embodiment, rate of fault is low, is particularly suitable for the horizontal high-speed scroll compressor, especially frequency-changeable compressor.

Claims (7)

1. a horizontal type scroll compressor rear-end of spindle sealing configuration comprises casing, main shaft, mainshaft rear bearing, and bearing support and transport pipe, described main shaft comprise central oil passage; Described bearing support is connected with casing, and the rear portion of said bearing support comprises shoe cream room, and described transport pipe connects described shoe cream room from the rear end of bearing support; It is characterized in that; Comprise oil sealing, described mainshaft rear bearing is a rolling bearing, and described bearing support comprises that oil sealing holds the hole; The oil sealing that the outer ring of said oil sealing is installed in bearing support holds in the hole, and described shoe cream room is positioned at the back of oil seal lip; The rear end of main shaft comprises the oil sealing axle journal, and described oil sealing axle journal passes the lip of oil sealing, inserts described shoe cream room; The material of said oil sealing main body is to contain the composite high-molecular material that gathers tetrem alkene, carbon fiber and graphite.
2. horizontal type scroll compressor rear-end of spindle sealing configuration according to claim 1; It is characterized in that; Described bearing support comprises body, bearing cap and bonnet; Described body comprises that bearing holds the hole, and the outer ring of said rolling bearing is fixed on described bearing and holds in the hole, on the installation axle journal at the main shaft rear portion that the inner ring of said rolling bearing is fixed on; Described bearing cap is fixed on the rear end of said body, and the endoporus of bearing cap is a through hole, and described through hole comprises that described oil sealing holds the hole; Described bonnet is fixed on the rear end of bearing cap, comprises the mounting hole of said transport pipe on the bonnet, and the logical described oil sealing of described mounting hole holds the hole.
3. horizontal type scroll compressor rear-end of spindle sealing configuration according to claim 2 is characterized in that the diameter of described oil sealing axle journal is less than the installation axle journal of 1/2nd bearings.
4. horizontal type scroll compressor rear-end of spindle sealing configuration according to claim 1 is characterized in that comprise the oil sealing jump ring, described through hole comprises the jump ring groove, and described oil sealing jump ring is installed in the jump ring groove, and the front end of oil sealing props up described oil sealing jump ring.
5. horizontal type scroll compressor rear-end of spindle sealing configuration according to claim 2 is characterized in that, comprises oil baffle, and the periphery of said oil baffle is fixed on the described casing, and the body-fixed of said bearing support is on oil baffle.
6. horizontal type scroll compressor rear-end of spindle sealing configuration according to claim 1 is characterized in that, the rear end of said oil sealing axle journal comprises oil sealing installation chamfering.
7. according to the described horizontal type scroll compressor rear-end of spindle of arbitrary claim sealing configuration in the claim 1 to 6, it is characterized in that said oil sealing is a lips formula outside framework oil seal.
CN2011102736478A 2011-04-28 2011-04-28 Horizontal scroll compressor main shaft rear-end sealing structure Pending CN102367796A (en)

Priority Applications (1)

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CN2011102736478A CN102367796A (en) 2011-04-28 2011-04-28 Horizontal scroll compressor main shaft rear-end sealing structure

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Application Number Priority Date Filing Date Title
CN2011102736478A CN102367796A (en) 2011-04-28 2011-04-28 Horizontal scroll compressor main shaft rear-end sealing structure

Related Parent Applications (1)

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CN201110109477XA Division CN102168673A (en) 2010-12-15 2011-04-28 Sealing method and structure at back end of spindle of horizontal scroll compressor

Publications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168673A (en) * 2010-12-15 2011-08-31 湖南华强电气有限公司 Sealing method and structure at back end of spindle of horizontal scroll compressor
CN106168256A (en) * 2016-06-30 2016-11-30 江苏永钢集团有限公司 Cooling bed roller bearing-lubricating device
CN109163104A (en) * 2018-10-30 2019-01-08 大连元利流体技术有限公司 Saturated vapor valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1172216A (en) * 1996-05-23 1998-02-04 三洋电机株式会社 Compression engine
JP2000110751A (en) * 1998-10-01 2000-04-18 Sanyo Electric Co Ltd Oil supply mechanism for scroll type compressor
CN1940302A (en) * 2005-09-30 2007-04-04 比泽尔制冷设备有限公司 Compressor for cooling fluid
US20080008614A1 (en) * 2006-07-07 2008-01-10 Takao Mizuno Horizontal type scroll compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1172216A (en) * 1996-05-23 1998-02-04 三洋电机株式会社 Compression engine
JP2000110751A (en) * 1998-10-01 2000-04-18 Sanyo Electric Co Ltd Oil supply mechanism for scroll type compressor
CN1940302A (en) * 2005-09-30 2007-04-04 比泽尔制冷设备有限公司 Compressor for cooling fluid
US20080008614A1 (en) * 2006-07-07 2008-01-10 Takao Mizuno Horizontal type scroll compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102168673A (en) * 2010-12-15 2011-08-31 湖南华强电气有限公司 Sealing method and structure at back end of spindle of horizontal scroll compressor
CN106168256A (en) * 2016-06-30 2016-11-30 江苏永钢集团有限公司 Cooling bed roller bearing-lubricating device
CN109163104A (en) * 2018-10-30 2019-01-08 大连元利流体技术有限公司 Saturated vapor valve

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Application publication date: 20120307