CN105889076B - Main frame of scroll compressor and scroll compressor - Google Patents
Main frame of scroll compressor and scroll compressor Download PDFInfo
- Publication number
- CN105889076B CN105889076B CN201610263536.1A CN201610263536A CN105889076B CN 105889076 B CN105889076 B CN 105889076B CN 201610263536 A CN201610263536 A CN 201610263536A CN 105889076 B CN105889076 B CN 105889076B
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- Prior art keywords
- cross slip
- mainframe
- ring
- oil
- orbiter
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- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 79
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000005461 lubrication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
- F04C18/0223—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving with symmetrical double wraps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/809—Lubricant sump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a main frame of a scroll compressor and the scroll compressor, wherein the main frame of the scroll compressor comprises a bearing seat, one side surface of the bearing seat is provided with a cross slip ring supporting surface, the cross slip ring supporting surface is provided with at least two key grooves, and two sides of each key groove are connected with oil grooves for lubricating relative movement between a cross slip ring and a main frame. The technical scheme of the invention is that an oil groove is arranged on the cross slip ring supporting surface of the main frame, and the oil groove can store a certain amount of oil, so that the relative motion between the cross slip ring and the main frame can be lubricated, the relative motion between the key groove and the cross slip ring convex key can be better lubricated, the friction and collision strength and the power consumption of the scroll compressor for overcoming the friction work are reduced, and the reliability of the scroll compressor is improved.
Description
Technical field
The present invention relates to compressor field, in particular to the mainframe and screw compressor of a kind of screw compressor.
Background technique
Screw compressor becomes increasingly popular the compressor being used as in refrigeration and air conditioning applications.In general, scroll compression owner
It to be made of movable orbiting scroll, fixed scroll, cross slip-ring, mainframe, crankshaft, motor, shell etc..Orbiter in screw compressor
180 ° and eccentric opposed installation are rotated relative to fixed scroll.Motor band dynamic crankshaft in screw compressor makes orbiter opposite
In fixed scroll orbiting, a series of crescent-shaped spaces are then formed between orbiter and the scrollwork of fixed scroll.
During orbiter orbiting, crescent is empty while the crescent-shaped space of outer most edge is constantly mobile to center
Between volume also reducing, so that gas volume in the space be made to reduce pressure rise, be connected to until with central exhaust port, from
And compressor is discharged in compressed gas.
In addition, screw compressor also uses cross slip-ring, revolve for meeting orbiter around fixed scroll center same
When, to prevent orbiter rotation.Cross slip-ring can take many forms, but generally comprise a pair of first convex key and a pair of the
Two convex keys.First convex key cooperates in the keyway of orbiter, and the second convex key cooperates in fixed scroll or the keyway of mainframe
It is interior.Cross slip-ring with convex key is by cooperating corresponding keyway to be used to prevent orbiter transporting certainly relative to fixed scroll
It is dynamic, it inevitably generates and generates friction and collision between cross slip-ring and mainframe, to generate unnecessary noise, increase compression
Machine overcomes the power consumption of friction, or even causes the stuck of cross slip-ring.
Summary of the invention
The main object of the present invention is the mainframe and screw compressor for proposing a kind of screw compressor, it is intended to reduce cross
Relative friction between slip ring and mainframe promotes the working efficiency of screw compressor.
To achieve the above object, the present invention provides a kind of mainframe of screw compressor, including a bearing block, the axis
The one side for holding seat is equipped with cross slip-ring supporting surface, and the cross slip-ring supporting surface is equipped at least two keyways, the keyway
Two sides be connected with oil-filled oil groove, to lubricate the relative motion between cross slip-ring and mainframe.
Preferably, the center of the bearing block is equipped with the bearing hole for running through the mainframe along the axial direction of mainframe；
The oil supply gallery one end being arranged on the oil groove and the orbiter of screw compressor is connected to, and the oil supply gallery other end with
The bearing hole connection.
Preferably, the width of the oil groove is not more than the half of the cross slip-ring supporting surface width.
Preferably, the oil groove is the groove being arranged on the cross slip-ring supporting surface, and described in oil groove distance
The two sides of cross slip-ring supporting surface are equidistant.
Preferably, the keyway is two, and the center of circle of opposite cross slip-ring supporting surface is symmetrical arranged.
Preferably, the inner sidewall of the keyway forms Oil Guide face.
Preferably, the Oil Guide face is inclined-plane, cambered surface.
In addition, to achieve the above object, the present invention also provides a kind of screw compressor, including cross slip-ring and above-mentioned
The mainframe of screw compressor, the cross slip-ring is located on the mainframe, and the convex key of cross slip-ring is housed in the master
In the keyway of rack.
Preferably, the orbiter and fixed scroll of screw compressor are supported by the mainframe, the mainframe
Cross slip-ring supporting surface and the fixed scroll fastened on the bearing block surround a container；The Moving plate body of the orbiter
On be additionally provided with oil supply gallery, and described oil supply gallery one end is connected to the container of the mainframe, and other end perforation is described dynamic
Disk body is simultaneously connected to the bearing hole of the mainframe.
Preferably, the oil supply gallery includes the first subchannel extended along the axial direction of the Moving plate body, Yi Jiyan
The second subchannel that the radial direction of Moving plate body extends and is connected to the first subchannel；First subchannel can be through described
Moving plate body is connected to close to the side of mainframe, and with the bearing hole of mainframe.
The technical scheme is that open up an oil groove in the cross slip-ring supporting surface to mainframe, by this oil groove,
It can store certain oil mass, allow relative motion between oil lubrication cross slip-ring and mainframe, moreover it is possible to preferably lubrication
Relative motion between keyway and cross slip-ring convex key, reduces friction and impact strength and screw compressor overcomes friction
Acting power consumption, to improve the reliability of screw compressor.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the cross-section structure cross-sectional view of screw compressor provided by the invention；
Fig. 2 is cross slip-ring structure chart provided by the invention；
Fig. 3 is the stereoscopic schematic diagram of the mainframe of screw compressor provided by the invention；
Fig. 4 is the overlooking structure figure of the mainframe of screw compressor provided by the invention；
Fig. 5 is that the present invention provides the schematic diagram of mainframe and cross slip-ring engagement；
Fig. 6 is the diagrammatic cross-section in Fig. 4 at A；
Fig. 7 is that the present invention provides the Oil Guide face of mainframe in the schematic diagram of cambered surface；
Fig. 8 is the schematic cross-section for the keyway that the present invention is provided on mainframe.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that directionality instruction (such as up, down, left, right, before and after ...) if it exists in the embodiment of the present invention,
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
If being used for description purposes only in addition, being related to the description of " first ", " second " etc. in the present invention, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution
Will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not the present invention claims
Protection scope within.
As shown in Figure 1, screw compressor 100 includes the closed receiving formed by casing 101, upper cover 102 and lower cover 103
Space, i.e. compressor housing.Casing 101 is cylinder block, and the cylinder body both ends are opening-like.The one of upper cover 102 and cylinder body
Opening adaptation engaging, and setting of arching upward in the middle part of upper cover 102.Lower cover 103 is adapted to engaging, and lower cover 103 with another opening of cylinder body
Middle part is arched upward setting.The lower cover 103 and cylinder body that arch upward are enclosed the oil sump 16 of compression motor spindle, for installing lubricating oil.
Be equipped in accommodating space fixed scroll 11, orbiter 12, mainframe 13, crankshaft 14, motor 15, slave frame 17,
Cross slip-ring 20.Wherein, mainframe 13 is fixed in the shell of screw compressor 100, is placed in the upper end of casing 101, moves whirlpool
Capstan 12 is engaged with fixed scroll 11 by the support of mainframe 13 to form gas compression room.Slave frame 17 is fixed on casing
101 lower end, motor 15 is between mainframe 13 and slave frame 17.The upper end of crankshaft 14 passes through motor 15 and and orbiter
12 connections, lower end is supported on slave frame 17, and the lower end of crankshaft 14 also passes through Oil Guide component and protrudes into oil sump 16.
Orbiter 12 includes Moving plate body, dynamic vortex tooth 122 and eccentric bushing 142.Orbiter 12 is by screw compressor 100
Crankshaft 14 drive, crankshaft 14 is opposite with the rotor of motor 15 of screw compressor 100 to be set together fixedly, and crankshaft
14 are supported in the casing 101 of screw compressor 100 by mainframe 13.When starting the motor 15 of screw compressor 100, motor
15 rotor drives the crankshaft 14 being fixedly disposed corresponding thereto together to rotate.Crankshaft 14 has eccentric shaft, and eccentric shaft passes through
Sliding bearing is arranged in the eccentric bushing 142 of orbiter 12.It is flat in order to do orbiter 12 only relative to fixed scroll 11
Row movement, without making rotating motion, is provided with cross slip-ring 20 between orbiter 12 and mainframe 13.When crankshaft 14 is in electricity
When rotating under the drive of machine 15, crankshaft 14 does eccentric rotational motion along eccentric shaft, and eccentric shaft passes through the eccentric bushing of orbiter 12
142 driving orbiters 12 do translational motion along certain motion profile.
Fixed scroll 11 includes quiet disk body, static vortex tooth 112.Fixed scroll 11 and orbiter 12 be respectively positioned in cylinder body,
And close to the position of upper cover 102.Fixed scroll 11 is arranged than orbiter 12 closer to upper cover 102, and quiet disk body and upper cover 102
It is enclosed discharge chamber 30.The scroll wrap of fixed scroll 11 and orbiter 12 is intermeshed to form a series of crescent compression
Chamber.Gas vent is additionally provided on fixed scroll 11, and fixed scroll 11 is connected with an air intake duct 18.The air intake duct 18 is along quiet vortex
The radial direction of disk 11 extends, and is pierced by casing 101.Certainly, the air intake duct 18 can also along the axially extending of fixed scroll 11,
And it is pierced by upper cover 102, low pressure refrigerant gas is sucked into the compression that fixed scroll 11 and orbiter 12 are formed by air intake duct 18
It is intracavitary, after gas compression, then by fixed scroll 11 row of exhausting-gas hole to discharge chamber 30, be finally discharged by exhaust pipe 19.
Above-mentioned mainframe 13 is located at 12 lower section of orbiter, and is used to support orbiter 12, and fixed fixed scroll 11.
13 center of mainframe is equipped with the bearing hole extended along the axial direction of mainframe 13.Crankshaft 14 passes through the bearing hole, and connects
Orbiter, to drive orbiter 12 to work.
Based on above-mentioned screw compressor, the invention also provides a kind of screw compressors for being applied to the screw compressor
The structure of mainframe.Below for having the cross slip-ring 20 there are four convex key, the detailed knot of screw compressor mainframe is described
Structure.Relative to the cross slip-ring 20 of four convex keys, one side is arranged two, cooperates with orbiter；Another side is arranged two,
Cooperate with mainframe 13.
As shown in Fig. 2, it illustrates the structures for cross slip-ring 20 according to an embodiment of the present invention.The cross slip-ring
20 is annular in shape, and line of symmetry AA ' is formed there are two symmetrically arranged first convex key 21 along longitudinal direction on one side, edge on another side
There are two symmetrically arranged second convex keys 22 for transverse symmetry line BB ' formation.
In conjunction with shown in referring to Fig.1, cross slip-ring 20 is between mainframe 13 and orbiter 12, and cross slip-ring 20
First convex key 21 cooperates with orbiter 12, and the second convex key 22 and the mainframe 13 of cross slip-ring 20 cooperate, to prevent scroll compression
Rotation occurs for orbiter 12 in contracting machine operation process.
In conjunction with referring to Fig. 3 to Fig. 5, which is located at the lower section of orbiter 12, and entirety is in the form of a column.The mainframe
It may include a bearing block 133, an orbiter support portion 134 and fixed scroll be provided on the one side of the bearing block 133
Support portion 137, and fixed scroll support portion 137 is located at the outside of orbiter support portion 134.Orbiter support portion 134 with
The container 131 of receiving cross slip-ring is formed between fixed scroll support portion 137.When fixed scroll 11 is placed in fixed scroll branch
On support part 137, when orbiter 12 is placed on orbiter 134, part orbiter 12 protrudes into container 131, fixed scroll
After 11 engage with orbiter 12, container 131 is surrounded with quiet vortex support portion 137 and orbiter support portion 134.Moreover,
Cross slip-ring supporting surface 135 is formed on the bottom of the container 131, to support cross slip-ring 20.
Cross slip-ring supporting surface 135 be equipped at least two keyways 136, and be connected to 136 two sides of keyway filled with oil
Oil groove 1351, to lubricate the relative motion between cross slip-ring 20 and mainframe 13.Cross slip-ring 20 is undertaken on the cross
On slip ring supporting surface 135, cross slip-ring 20 generates translation fortune by the drive of orbiter 12 on cross slip-ring supporting surface 135
It is dynamic.
Oil groove 1351 between keyway 136 described in every two is the oil groove 1351 that can be connected to, but is also provided only on each
The oil groove 1351 that one section of 136 two sides of keyway is connected to keyway 136.One section of oil groove 1351 of each 136 two sides of keyway is set
Also meet the acting between lubrication cross slip-ring 20 and cross slip-ring supporting surface 135, and meet the second of lubrication cross slip-ring 20
Relative friction between convex key 22.Preferably, the oil groove 1351 of the present embodiment is the oil being connected between keyway 136 described in every two
Slot, such design, which has ensured, is lubricated the contact area between all cross slip-rings 20 and cross slip-ring supporting surface 135,
Maximumlly reduce the relative friction between cross slip-ring 20 and cross slip-ring supporting surface 135, most beneficial for reduction scroll compression
The function that contracting machine is used to that the friction between cross slip-ring 20 and cross slip-ring supporting surface 135 to be overcome to do.
Further, the center of circle of the opposite cross slip-ring supporting surface 135 of the keyway 136 is symmetrical arranged.Keyway 136 is symmetrical
Setting, ensure that 1351 equal length of oil groove between keyway 136.It is understood that oil mass in two sides oil groove 1351 also base
This holding is identical, and such structure can effectively ensure that equal oil mass rubs to the movement between cross slip-ring 20 and mainframe 13
The lubricity of wiping is of substantially equal, so that the wear intensity of 136 two sides of cross slip-ring 20 and keyway is balanced, has ensured cross slip-ring 20
And the service life of screw compressor 100.
The technical scheme is that open up an oil groove in the cross slip-ring supporting surface to mainframe, by this oil groove,
It can store certain oil mass, not only allow relative motion between oil lubrication cross slip-ring and mainframe, moreover it is possible to preferably
The relative motion between keyway and cross slip-ring convex key is lubricated, friction and impact strength is reduced and screw compressor overcomes and rubs
The power consumption of the acting of wiping, to improve the reliability of screw compressor.
Above-mentioned oil groove 1351 can store certain oil, during the operation of the compressor, to lubricate mainframe 13 and and cross
Relative motion between slip ring 20.
In another embodiment, the lubricating oil in above-mentioned oil groove 1351 is by compressing the oil of motor spindle in compressor operational process
It is supplied.Specifically, it is additionally provided with oil supply gallery 121 on the Moving plate body of above-mentioned orbiter, the oil supply gallery one end and host
Container 131 in frame 13 between fixed scroll support portion 137 and orbiter support portion 134 is connected to, and the other end penetrates through dynamic whirlpool
The Moving plate body of capstan is simultaneously connected to the bearing hole of mainframe 13.The oil that the oil supply gallery 121 is used to bring up on crankshaft 14 drains
Into the container 131 of receiving cross slip-ring 20, and it flow in oil groove 1351.Above-mentioned oil supply gallery 121 includes along Moving plate body
Axial direction extend the first subchannel, and along Moving plate body radial direction extend and be connected to the first subchannel second
Subchannel.First subchannel can be connected to through Moving plate body close to the side of mainframe 13, and with the bearing hole of mainframe 13.It can
With understanding, the structure of oil supply gallery 121 of the invention can be also other distressed structures, as long as 13 bearing of mainframe can be connected to
The oil supply gallery of the container 131 of hole and mainframe 13 is all within the scope of the present invention.
The crankshaft petroleum pipeline 141 that the screw compressor is connected in the middle part of the eccentric bushing 142 of above-mentioned orbiter 12, to connect
It receives from the crankshaft petroleum pipeline 141 by centrifugal force pressure difference and absorbs the oil to come up from the oil sump 16 of scroll compression motor spindle.It absorbs
The oil a part come up is to 12 translational motion of orbiter, a part of fuel feeding to enter orbiter by pressure difference
In channel 121.The oil entered in the oil supply gallery 121 is flowed out from the outlet being connected to container 131, and along container
131 side wall stream drops on cross slip-ring supporting surface 135, passes through the opposite of cross slip-ring 20 and cross slip-ring supporting surface
Movement, the oil of drippage is pushed in oil groove 1351 and is stored, the oil of storage is further continued for cross slip-ring 20 and cross slip-ring
Relative motion between supporting surface 135 is lubricated.
Further, the width of above-mentioned oil groove 1351 is not more than the half of 135 width of cross slip-ring supporting surface, oil groove
The 1351 wide cross slip-ring supporting surfaces 135 that reduce are unfavorable for the integrally-built heavily fortified point of mainframe to the support force of cross slip-ring 20
The problem of oil mass is excessive Gu being also also easy to produce, and extra oil mass cannot be fully utilized.1351 width of oil groove is wide no more than cross slip-ring 20
The half of degree, can effective guarantee oil mass make full use of and the robustness of 13 structure of mainframe.
Further, above-mentioned oil groove 1351 is the groove being arranged on the cross slip-ring supporting surface 135, the oil
Two sides of the slot 1351 apart from the cross slip-ring supporting surface 135 are equidistant.The structure ensure that the top surface and ten of groove
Word slip ring supporting surface 135 is coplanar, has not only met the seamless support to cross slip-ring 20, but also meets sliding to cross slip-ring 20 and cross
Contact between ring supporting surface 135 carry out it is oily, can effectively reduce cross slip-ring 20 and cross slip-ring supporting surface 135 it
Between friction of motion.
One embodiment of the mainframe 13 of screw compressor according to the present invention, as shown in fig. 6, the cross slip-ring
The avris of supporting surface 135 is extended on the inner wall of the keyway 136 by connecting an Oil Guide face 1352, the Oil Guide face 1352
The bottom wall of the oil groove 1351 and the side wall of the keyway 136 are connected for a chamfering or a fillet.The design ensure that oil groove
It is oily because gravity can flow downwardly into keyway 136 along Oil Guide face 1352 in 1351, it ensure that and be also filled in keyway 136 for lubricating
The oil body of relative motion between 13 wall of cross slip-ring 20 and mainframe.As described in Figure 8, it is transported from the second convex key 22 of cross slip-ring 20
The section of dynamic direction observation keyway 136, which is 136 side wall of keyway at right angle with respect to Oil Guide face 1352, reduces keyway 136
The direct contact area of second convex key 22 of side wall and cross slip-ring 20 reduces 136 side wall of keyway and cross slip-ring 20
Friction between second convex key 22, while increasing oil body and relative motion between 136 side wall of keyway and cross slip-ring 20 is lubricated
Area, accordingly reduce screw compressor and overcome friction work done, improve the working efficiency of screw compressor.
Another embodiment of mainframe according to the present invention, the Oil Guide face 1352 as shown in Figure 6, cambered surface for inclined-plane
As shown in Figure 7.Above-mentioned Oil Guide face 1352 is arranged into mainframe 13, has ensured the oil in oil groove 1351 because gravity can be along Oil Guide face
1352 flow downwardly into keyway 136, ensure that and are also filled in keyway 136 for lubricating between 13 wall of cross slip-ring 20 and mainframe
The oil body of relative motion.
In the description of this specification, reference term " preferred ", " further ", " further ", " further
" or " specific " etc. description mean the specific features described in conjunction with the embodiment or example, structure, material or
Feature is contained at least one embodiment or example of the invention.In the present specification, to the schematic table of above-mentioned term
It states and is not necessarily referring to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more embodiments or example.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (4)
1. a kind of mainframe of screw compressor, which is characterized in that including a bearing block, be arranged on the one side of the bearing block
There are an orbiter support portion and fixed scroll support portion, and the fixed scroll support zone is in the outer of orbiter support portion
Side is formed with container between the orbiter support portion and fixed scroll support portion；The trough wall surface of the container includes
The one cross slip-ring supporting surface to support cross slip-ring, the cross slip-ring supporting surface is equipped at least two keyways, described
The two sides of keyway are connected with oil groove；The oil groove is the groove being arranged on the cross slip-ring supporting surface, and the oil groove away from
Two sides from the cross slip-ring supporting surface are equidistant；And the width of the oil groove is supported no more than the cross slip-ring
The half of face width；
The center of the bearing block is equipped with the bearing hole for running through the mainframe along the axial direction of mainframe；In the container
Oil groove and the orbiter of screw compressor on oil supply gallery one end for being arranged be connected to, and the oil supply gallery other end and institute
State bearing hole connection；
The inner sidewall of the keyway is formed with Oil Guide face, and the Oil Guide face is inclined-plane or cambered surface.
2. the mainframe of screw compressor as described in claim 1, which is characterized in that the keyway is two, and opposite ten
The center of circle of word slip ring supporting surface is symmetrical arranged.
3. a kind of screw compressor, which is characterized in that including cross slip-ring and such as whirlpool of any of claims 1-2
The mainframe of compressor is revolved, the fixed scroll of screw compressor, the orbiter are supported by the fixed scroll support portion
The orbiter of screw compressor is supported by support portion, the cross slip-ring is placed in the container of the mainframe, and
The convex key of the cross slip-ring is housed in the keyway of the mainframe；The trough wall surface of the container includes one to support ten
The cross slip-ring supporting surface of word slip ring, the cross slip-ring supporting surface is concavely provided with oil groove, and the oil groove is apart from the cross
The two sides of slip ring supporting surface are equidistant；
The Moving plate body of the orbiter is equipped with oil supply gallery, and the container of described oil supply gallery one end and the mainframe
Connection, the other end penetrate through the Moving plate body and are connected to the bearing hole of the mainframe；
The inner sidewall of the keyway is formed with Oil Guide face, and the Oil Guide face is inclined-plane or cambered surface.
4. screw compressor as claimed in claim 3, which is characterized in that the oil supply gallery includes the axis along the Moving plate body
The first subchannel extended to direction, and extend along the radial direction of the Moving plate body and be connected to first subchannel
The second subchannel；First subchannel can through the Moving plate body close to the side of the mainframe, and with the host
The bearing hole of frame is connected to.
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| CN201610263536.1A CN105889076B (en) | 2016-04-25 | 2016-04-25 | Main frame of scroll compressor and scroll compressor |
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| CN105889076B true CN105889076B (en) | 2019-08-27 |
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| CN106762655B (en) * | 2017-01-19 | 2019-08-27 | 珠海格力电器股份有限公司 | A kind of scroll compression machine support and screw compressor |
| CN114251265B (en) * | 2021-12-16 | 2024-04-23 | 苏州为山之环境技术有限公司 | Cross slip ring lubricating structure and compressor comprising same |
| CN114412792B (en) * | 2021-12-24 | 2023-01-10 | 珠海格力电器股份有限公司 | Oil guide assembly, scroll compressor and heat pump system |
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| KR101275181B1 (en) * | 2006-12-13 | 2013-06-18 | 엘지전자 주식회사 | Oil supply structure for scroll compressor |
| WO2015155802A1 (en) * | 2014-04-09 | 2015-10-15 | 三菱電機株式会社 | Scroll compressor |
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| CN105889076A (en) | 2016-08-24 |
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Effective date of registration: 20190111 Address after: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Applicant after: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. Address before: 528311 Penglai Road industrial town, Beijiao Town, Shunde District, Foshan, Guangdong Applicant before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Applicant before: MIDEA GROUP Co.,Ltd. |
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Effective date of registration: 20190513 Address after: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Applicant before: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. |
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