CN105889076A - Main frame of scroll compressor and scroll compressor - Google Patents
Main frame of scroll compressor and scroll compressor Download PDFInfo
- Publication number
- CN105889076A CN105889076A CN201610263536.1A CN201610263536A CN105889076A CN 105889076 A CN105889076 A CN 105889076A CN 201610263536 A CN201610263536 A CN 201610263536A CN 105889076 A CN105889076 A CN 105889076A
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- China
- Prior art keywords
- mainframe
- cross slip
- screw compressor
- ring
- oil
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Links
- 239000000446 fuel Substances 0.000 claims 1
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 81
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000005461 lubrication Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 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
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a main frame of a scroll compressor and the scroll compressor. The main frame of the scroll compressor comprises a bearing pedestal; a cross-shaped sliding ring supporting face is arranged on one side face of the bearing pedestal and provided with at least two key grooves; and an oil groove is connected to the two sides of each key groove and used for lubricating relative movement between a cross-shaped sliding ring and the main frame. According to the technical scheme, the cross-shaped sliding ring supporting face of the main frame is provided with the oil groove, a certain amount of oil can be stored through the oil groove, the relative movement between the cross-shaped sliding ring and the main frame can be lubricated, relative movement between the key grooves and cross-shaped sliding ring convex keys can be lubricated better, the friction and collision strength and the power consumption of work done by the scroll compressor for overcoming friction are reduced, and therefore the reliability of the scroll compressor is improved.
Description
Technical field
The present invention relates to compressor field, particularly to mainframe and the screw compressor of a kind of screw compressor.
Background technology
Screw compressor becomes increasingly popular the compressor being used as in refrigeration and air conditioning applications.Generally, screw compressor is mainly made up of movable orbiting scroll, fixed scroll, cross slip-ring, mainframe, bent axle, motor, housing etc..Orbiter in screw compressor rotates 180 ° and eccentric opposed installation relative to fixed scroll.Driven by motor bent axle in screw compressor makes orbiter relative to fixed scroll orbiting, then forms a series of crescent-shaped space between orbiter and the scrollwork of fixed scroll.During orbiter orbiting, the crescent-shaped space of outer most edge constantly while center is moved the volume of crescent-shaped space also reduce, raise so that the gas volume in this space reduces pressure, until connecting with central exhaust port, thus the gas after compression is discharged compressor.
Additionally, screw compressor also uses cross slip-ring, be used for meet orbiter around fixed scroll center revolve round the sun while, in order to prevent orbiter rotation.Cross slip-ring can take many forms, but generally comprises a pair first convex keys and a pair second convex keys.First convex key coordinates in the keyway of orbiter, and the second convex key coordinates in the keyway of fixed scroll or mainframe.Cross slip-ring with convex key is by coordinating corresponding keyway for preventing the orbiter spinning motion relative to fixed scroll, unavoidable generation produces friction and collision between cross slip-ring and mainframe, thus produce unnecessary noise, add compressor and overcome the power consumption of friction, even cause the stuck of cross slip-ring.
Summary of the invention
The main object of the present invention is to propose mainframe and the screw compressor of a kind of screw compressor, it is intended to reduce the Relative friction between cross slip-ring and mainframe, promotes the work efficiency of screw compressor.
For achieving the above object, the invention provides the mainframe of a kind of screw compressor, including a bearing block, the one side of described bearing block is provided with cross slip-ring supporting surface, described cross slip-ring supporting surface is provided with at least two keyway, the both sides of described keyway connect has oil-filled oil groove, in order to lubricate the relative motion between cross slip-ring and mainframe.
Preferably, the center of described bearing block is provided with the axial direction along mainframe and runs through the dead eye of described mainframe；Described oil groove connects with the oil supply gallery one end arranged on the orbiter of screw compressor, and the described oil supply gallery other end connects with described dead eye.
Preferably, the width of described oil groove is not more than the half of described cross slip-ring supporting surface width.
Preferably, described oil groove is the groove being arranged on described cross slip-ring supporting surface, and described oil groove is equal apart from the distance of the dual-side of described cross slip-ring supporting surface.
Preferably, described keyway is two, and the center of circle of relative cross slip-ring supporting surface is symmetrical arranged.
Preferably, the medial wall of described keyway forms Oil Guide face.
Preferably, described Oil Guide face is inclined-plane, cambered surface.
Additionally, for achieving the above object, the present invention also provides for a kind of screw compressor, and including cross slip-ring and the mainframe of above-mentioned screw compressor, described cross slip-ring is positioned on described mainframe, and the convex key of cross slip-ring is housed in the keyway of described mainframe.
Preferably, described mainframe supporting and has orbiter and the fixed scroll of screw compressor, the cross slip-ring supporting surface of described mainframe surrounds an accepting groove with the fixed scroll fastened on described bearing block；Being additionally provided with oil supply gallery on the Moving plate body of described orbiter, and described oil supply gallery one end connects with the accepting groove of described mainframe, the through described Moving plate body of the other end the dead eye with described mainframe connect.
Preferably, described oil supply gallery includes the first subchannel extended along the axial direction of described Moving plate body, and extends and the second subchannel of connecting with the first subchannel along the radial direction of Moving plate body；Described first subchannel can run through described Moving plate body near the side of mainframe, and connects with the dead eye of mainframe.
The technical scheme is that and offering an oil groove to the cross slip-ring supporting surface of mainframe, by this oil groove, certain oil mass can be stored, allow the relative motion between oil lubrication cross slip-ring and mainframe, can also preferably lubricate the relative motion between keyway and the convex key of cross slip-ring, reduce friction and impact strength and screw compressor overcome the acting power consumption of friction, thus improve the reliability of screw compressor.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to the structure shown in these accompanying drawings.
Fig. 1 is the cross-section structure sectional view of the screw compressor that the present invention provides；
Fig. 2 is the cross slip-ring structure chart that the present invention provides；
Fig. 3 is the schematic perspective view of the mainframe of the screw compressor that the present invention provides；
Fig. 4 is the plan structure figure of the mainframe of the screw compressor that the present invention provides；
Fig. 5 is the schematic diagram that the present invention provides that mainframe and cross slip-ring engage；
Fig. 6 is the generalized section in Fig. 4 at A；
Fig. 7 is that the present invention provides the Oil Guide face of mainframe to be the schematic diagram of cambered surface；
Fig. 8 is the schematic cross-section that the present invention provides the keyway on mainframe.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further referring to the drawings.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Need explanation, if the embodiment of the present invention exists directivity instruction (such as up, down, left, right, before and after ...), it is only used for explanation relative position relation under a certain particular pose (as shown in drawings) between each parts, motion conditions etc., if this particular pose changes, then directionality instruction changes the most therewith.
If it addition, relate to the description of " first ", " second " etc. in the present invention, it is only used for describing purpose, and it is not intended that indicate or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.Additionally; technical scheme between each embodiment can be combined with each other; but must be based on those of ordinary skill in the art are capable of; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exists, the most not within the protection domain of application claims.
As it is shown in figure 1, screw compressor 100 includes the airtight receiving space formed by casing 101, upper cover 102 and lower cover 103, i.e. compressor housing.Casing 101 is cylinder block, and these cylinder body two ends are opening-like.Upper cover 102 engages with an opening adaptation of cylinder body, and setting of arching upward in the middle part of upper cover 102.Lower cover 103 engages with another opening adaptation of cylinder body, and setting of arching upward in the middle part of lower cover 103.The lower cover 103 and the cylinder body that arch upward enclose the oil sump 16 formed bottom compressor, are used for installing lubricating oil.
Fixed scroll 11, orbiter 12, mainframe 13, bent axle 14, motor 15, slave frame 17, cross slip-ring 20 it is provided with in receiving space.Wherein, mainframe 13 is fixed in the housing of screw compressor 100, is placed in the upper end of casing 101, and orbiter 12 engages to form gas compression room with fixed scroll 11 by the support of mainframe 13.Slave frame 17 is fixed on the lower end of casing 101, and motor 15 is between mainframe 13 and slave frame 17.The upper end of bent axle 14 through motor 15 and is connected with orbiter 12, and lower end is supported on slave frame 17, and the lower end of bent axle 14 is stretched in oil sump 16 also by Oil Guide parts.
Orbiter 12 includes Moving plate body, dynamic vortex tooth 122 and eccentric bushing 142.Orbiter 12 is driven by the bent axle 14 of screw compressor 100, and bent axle 14 is set together with the rotor of the motor 15 of screw compressor 100 with being relatively fixed, and bent axle 14 is supported in the casing 101 of screw compressor 100 by mainframe 13.When starting the motor 15 of screw compressor 100, the rotor of motor 15 drives the bent axle 14 being fixedly disposed corresponding thereto together to rotate.Bent axle 14 has eccentric shaft, and eccentric shaft is arranged in the eccentric bushing 142 of orbiter 12 by sliding bearing.In order to make orbiter 12 only do parallel motion relative to fixed scroll 11, and do not rotate, between orbiter 12 and mainframe 13, be provided with cross slip-ring 20.When bent axle 14 rotates under the drive of motor 15, bent axle 14 does eccentric rotational motion along eccentric shaft, and eccentric shaft drives orbiter 12 to do translational motion along certain movement locus by the eccentric bushing 142 of orbiter 12.
Fixed scroll 11 includes quiet disk body, static vortex tooth 112.In fixed scroll 11 and orbiter 12 are respectively positioned on cylinder body and near the position of upper cover 102.Fixed scroll 11 is arranged closer to upper cover 102 than orbiter 12, and quiet disk body encloses formation discharge chamber 30 with upper cover 102.Fixed scroll 11 engages each other a series of crescent compression chamber of formation with the scroll wrap of orbiter 12.It is additionally provided with steam vent on fixed scroll 11, and fixed scroll 11 connection has a suction nozzle 18.This suction nozzle 18 extends along the radial direction of fixed scroll 11, and passes casing 101.Certainly, this suction nozzle 18 can also axially extending along fixed scroll 11, and pass upper cover 102, by suction nozzle 18 low pressure refrigerant gas is sucked into fixed scroll 11 and in compression chamber that orbiter 12 is formed, after gas compression, drained into discharge chamber 30 by the steam vent of fixed scroll 11 again, finally discharged by exhaustor 19.
Above-mentioned mainframe 13 is positioned at below orbiter 12, and is used for supporting orbiter 12, and fixing fixed scroll 11.This mainframe 13 center is provided with the dead eye of the axial direction extension along mainframe 13.Bent axle 14 is through this dead eye, and connects orbiter, to drive orbiter 12 to work.
Based on above-mentioned screw compressor, the invention allows for being applied to the structure of a kind of screw compressor mainframe of this screw compressor.Below as a example by the cross slip-ring 20 with four convex keys, the detailed construction of screw compressor mainframe is described.Relative to the cross slip-ring 20 of four convex keys, one side arranges two, coordinates with orbiter；Another side arranges two, coordinates with mainframe 13.
As in figure 2 it is shown, it illustrates the structure for cross slip-ring 20 according to embodiments of the present invention.This cross slip-ring 20 in the form of a ring, and is formed with two symmetrically arranged first convex keys 21 along longitudinally asymmetric line AA ' on one side, and on another side, transversely line of symmetry BB ' is formed with two symmetrically arranged second convex keys 22.
In conjunction with reference to shown in Fig. 1, cross slip-ring 20 is between mainframe 13 and orbiter 12, and the first convex key 21 of cross slip-ring 20 coordinates with orbiter 12, the second convex key 22 of cross slip-ring 20 coordinates with mainframe 13, to prevent orbiter 12 in screw compressor operation process from rotation occurring.
In conjunction with reference to Fig. 3 to Fig. 5, this mainframe 13 is positioned at the lower section of orbiter 12, and entirety is column.This mainframe can include a bearing block 133, and the one side of described bearing block 133 is provided with an orbiter supporting part 134 and fixed scroll supporting part 137, and fixed scroll supporting part 137 is positioned at the outside of orbiter supporting part 134.The accepting groove 131 housing cross slip-ring it is formed with between orbiter supporting part 134 and fixed scroll supporting part 137.When fixed scroll 11 is placed on fixed scroll supporting part 137, when orbiter 12 is placed on orbiter 134, part orbiter 12 stretches into accepting groove 131, after fixed scroll 11 engages with orbiter 12, surrounds accepting groove 131 with quiet vortex supporting part 137 and orbiter supporting part 134.And, cross slip-ring supporting surface 135 is formed on the bottom of this accepting groove 131, in order to support cross slip-ring 20.
Cross slip-ring supporting surface 135 is provided with at least two keyway 136, and the oil groove 1351 being filled with oil connected with keyway 136 both sides, in order to lubricate the relative motion between cross slip-ring 20 and mainframe 13.Cross slip-ring 20 is undertaken on described cross slip-ring supporting surface 135, and cross slip-ring 20 produces translational motion by the drive of orbiter 12 on cross slip-ring supporting surface 135.
Described in each two, the oil groove 1351 between keyway 136 is the oil groove 1351 that can connect, and is also provided only on one section of oil groove 1351 connected with keyway 136 of each keyway 136 both sides.The one section of oil groove 1351 being arranged on each keyway 136 both sides also meets the acting between lubrication cross slip-ring 20 and cross slip-ring supporting surface 135, meets again the Relative friction between the second convex key 22 of lubrication cross slip-ring 20.Preferably, the oil groove 1351 of the present embodiment is the oil groove between keyway 136 described in connection each two, such design has ensured and has been lubricated the contact area between all cross slip-rings 20 and cross slip-ring supporting surface 135, the maximized Relative friction decreased between cross slip-ring 20 and cross slip-ring supporting surface 135, most beneficial for reducing screw compressor for overcoming the friction work between cross slip-ring 20 and cross slip-ring supporting surface 135.
Further, the center of circle of the described relative cross slip-ring supporting surface 135 of keyway 136 is symmetrical arranged.Keyway 136 is symmetrical arranged, it is ensured that oil groove 1351 length between keyway 136 is equal.It is understandable that, oil mass in both sides oil groove 1351 keeps identical the most substantially, such structure can effectively ensure that equal oil mass is of substantially equal to the lubricity of the friction of motion between cross slip-ring 20 and mainframe 13, the wear intensity making cross slip-ring 20 and keyway 136 both sides equalizes, and has ensured cross slip-ring 20 and the service life of screw compressor 100.
The technical scheme is that and offering an oil groove to the cross slip-ring supporting surface of mainframe, by this oil groove, certain oil mass can be stored, not only allow the relative motion between oil lubrication cross slip-ring and mainframe, can also preferably lubricate the relative motion between keyway and the convex key of cross slip-ring, reduce the power consumption that friction overcomes the acting of friction with impact strength and screw compressor, thus improve the reliability of screw compressor.
Above-mentioned oil groove 1351 can store certain oil, with during compressor operating, lubrication mainframe 13 and and cross slip-ring 20 between relative motion.
In another embodiment, during the lubricating oil in above-mentioned oil groove 1351 is by compressor operating, the oil bottom compressor is supplied.Specifically, it is additionally provided with oil supply gallery 121 on the Moving plate body of above-mentioned orbiter, this oil supply gallery one end connects with accepting groove 131 between fixed scroll supporting part 137 and orbiter supporting part 134 in mainframe 13, and the Moving plate body of the through orbiter of the other end also connects with the dead eye of mainframe 13.This oil supply gallery 121 in draining into the accepting groove 131 housing cross slip-ring 20 by the oil that bent axle 14 is brought up, and flow in oil groove 1351.Above-mentioned oil supply gallery 121 includes the first subchannel extended along the axial direction of Moving plate body, and extends and the second subchannel of connecting with the first subchannel along the radial direction of Moving plate body.This first subchannel can run through the Moving plate body side near mainframe 13, and connects with the dead eye of mainframe 13.It is understood that the structure of the oil supply gallery 121 of the present invention can be also other distressed structures, as long as the oil supply gallery that can connect the accepting groove 131 of mainframe 13 dead eye and mainframe 13 is the most within the scope of the present invention.
Connect the bent axle petroleum pipeline 141 of described screw compressor in the middle part of the eccentric bushing 142 of above-mentioned orbiter 12, absorbed, from described bent axle petroleum pipeline 141, the oil come up in order to receive from the oil sump 16 of scroll compression motor spindle by centrifugal force pressure reduction.Absorbing the oil part come up in order to orbiter 12 translational motion, a part is in order to enter into by pressure reduction in the oil supply gallery 121 of orbiter.The oil entered in described oil supply gallery 121 flows out from the outlet connected with accepting groove 131, and along the sidewall stream of accepting groove 131 or drop onto on cross slip-ring supporting surface 135, by cross slip-ring 20 and the relative motion of cross slip-ring supporting surface, being pushed to the oil of drippage in oil groove 1351 store, the oil of storage is further continued for being lubricated the relative motion between cross slip-ring 20 and cross slip-ring supporting surface 135.
Further, the width of above-mentioned oil groove 1351 is not more than the half of described cross slip-ring supporting surface 135 width, oil groove 1351 is wide decreases the cross slip-ring supporting surface 135 support force to cross slip-ring 20, it is unfavorable for that mainframe is integrally-built firm, also oil mass it is easily generated too much, it is impossible to the problem of fully utilized unnecessary oil mass.Oil groove 1351 width is not more than the half of cross slip-ring 20 width, can the making full use of of effective guarantee oil mass, and the robustness of mainframe 13 structure.
Further, above-mentioned oil groove 1351 is the groove being arranged on described cross slip-ring supporting surface 135, and described oil groove 1351 is equal apart from the distance of the dual-side of described cross slip-ring supporting surface 135.This structure ensure that end face and cross slip-ring supporting surface 135 coplanar of groove, both the seamless support to cross slip-ring 20 had been met, meeting again carries out oily to contacting between cross slip-ring 20 with cross slip-ring supporting surface 135, can effectively reduce the friction of motion between cross slip-ring 20 and cross slip-ring supporting surface 135.
One embodiment of the mainframe 13 of the screw compressor according to the present invention, as shown in Figure 6, the avris of described cross slip-ring supporting surface 135 extends on the inwall of described keyway 136 by connecting an Oil Guide face 1352, and described Oil Guide face 1352 is diapire and the sidewall of described keyway 136 that a chamfering or a fillet connect described oil groove 1351.This design ensure that oil in oil groove 1351 can flow downwardly in keyway 136 along Oil Guide face 1352 because of gravity, it is ensured that is also filled with the oil body for lubricating the relative motion between cross slip-ring 20 and mainframe 13 wall in keyway 136.As described in Figure 8, the cross section of keyway 136 is observed from the second of cross slip-ring 20 convex key 22 direction of motion, this structure is relative to keyway 136 sidewall that Oil Guide face 1352 is right angle, the direct contact surface of the second convex key 22 decreasing keyway 136 sidewall and cross slip-ring 20 amasss, i.e. decrease the friction between keyway 136 sidewall and the second convex key 22 of cross slip-ring 20, add oil body to the area of relative motion lubrication between keyway 136 sidewall and cross slip-ring 20 simultaneously, decrease screw compressor accordingly and overcome friction work done, improve the work efficiency of screw compressor.
Another embodiment of mainframe according to the present invention, described Oil Guide face 1352 be inclined-plane as shown in Figure 6, cambered surface as shown in Figure 7.Above-mentioned Oil Guide face 1352 is arranged in mainframe 13, has ensured that oil in oil groove 1351 can flow downwardly in keyway 136 along Oil Guide face 1352 because of gravity, it is ensured that be also filled with the oil body for lubricating the relative motion between cross slip-ring 20 and mainframe 13 wall in keyway 136.
In the description of this specification, the description of reference term " preferably ", " further ", " further ", " further " or " concrete " etc. means to combine described embodiment or example describes specific features, structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in any one or more embodiments or example in an appropriate manner.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every under the inventive concept of the present invention; utilize the equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly/be indirectly used in other relevant technical fields and be included in the scope of patent protection of the present invention.
Claims (10)
1. a mainframe for screw compressor, including a bearing block, the one side of described bearing block is provided with
Cross slip-ring supporting surface, described cross slip-ring supporting surface is provided with at least two keyway, it is characterised in that
The both sides of described keyway connect oil groove.
2. the mainframe of screw compressor as claimed in claim 1, it is characterised in that described bearing block
Center be provided with the axial direction along mainframe and run through the dead eye of described mainframe；Described oil groove and vortex
The oil supply gallery one end connection arranged on the orbiter of compressor, and the described oil supply gallery other end and institute
State dead eye connection.
3. the mainframe of screw compressor as claimed in claim 1 or 2, it is characterised in that described oil groove
Width be not more than the half of described cross slip-ring supporting surface width.
4. the mainframe of screw compressor as claimed in claim 3, it is characterised in that described oil groove is
It is arranged on the groove on described cross slip-ring supporting surface, and described oil groove is apart from described cross slip-ring supporting surface
The distance of dual-side equal.
5. the mainframe of screw compressor as claimed in claim 1, it is characterised in that described keyway is
Two, and the center of circle of relative cross slip-ring supporting surface is symmetrical arranged.
6. mainframe as claimed in claim 1, it is characterised in that the medial wall of described keyway is formed
Oil Guide face.
7. the mainframe of screw compressor as claimed in claim 6, it is characterised in that described Oil Guide face
For inclined-plane, cambered surface.
8. a screw compressor, it is characterised in that include cross slip-ring and as in claim 1-8
The mainframe of the screw compressor described in any one, described cross slip-ring is positioned on described mainframe, and institute
The convex key stating cross slip-ring is housed in the keyway of described mainframe.
9. screw compressor as claimed in claim 8, it is characterised in that support on described mainframe and have
The orbiter of screw compressor and fixed scroll, the cross slip-ring supporting surface of described mainframe with fasten to
Fixed scroll on described bearing block surrounds an accepting groove；The Moving plate body of described orbiter is provided with fuel feeding
Passage, and described oil supply gallery one end connects with the accepting groove of described mainframe, the other end is through described dynamic
Disk body the dead eye with described mainframe connect.
10. screw compressor as claimed in claim 9, it is characterised in that described oil supply gallery includes edge
The first subchannel that the axial direction of described Moving plate body extends, and prolong along the radial direction of described Moving plate body
The second subchannel stretched and connect with described first subchannel；Described first subchannel can run through described dynamic
Disk body is near the side of described mainframe, and connects with the dead eye of described mainframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263536.1A CN105889076B (en) | 2016-04-25 | 2016-04-25 | Main frame of scroll compressor and scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263536.1A CN105889076B (en) | 2016-04-25 | 2016-04-25 | Main frame of scroll compressor and scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105889076A true CN105889076A (en) | 2016-08-24 |
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Cited By (4)
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| CN106762655A (en) * | 2017-01-19 | 2017-05-31 | 珠海凌达压缩机有限公司 | Scroll compressor support and scroll compressor |
| CN109185153A (en) * | 2018-11-19 | 2019-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Movable orbiting scroll and screw compressor |
| CN114251265A (en) * | 2021-12-16 | 2022-03-29 | 苏州为山之环境技术有限公司 | Cross sliding ring lubricating structure and compressor comprising same |
| CN114412792A (en) * | 2021-12-24 | 2022-04-29 | 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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| CN106762655A (en) * | 2017-01-19 | 2017-05-31 | 珠海凌达压缩机有限公司 | Scroll compressor support and scroll compressor |
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| CN109185153A (en) * | 2018-11-19 | 2019-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Movable orbiting scroll and screw compressor |
| CN114251265A (en) * | 2021-12-16 | 2022-03-29 | 苏州为山之环境技术有限公司 | Cross sliding ring lubricating structure and compressor comprising same |
| 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 |
| CN114412792A (en) * | 2021-12-24 | 2022-04-29 | 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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| CN105889076B (en) | 2019-08-27 |
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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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