CN108825498A - Rotary compressor, gas compression system, refrigeration system and heat pump system - Google Patents
Rotary compressor, gas compression system, refrigeration system and heat pump system Download PDFInfo
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- CN108825498A CN108825498A CN201810557443.9A CN201810557443A CN108825498A CN 108825498 A CN108825498 A CN 108825498A CN 201810557443 A CN201810557443 A CN 201810557443A CN 108825498 A CN108825498 A CN 108825498A
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- slide plate
- swinging block
- rotary compressor
- face
- cam part
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of rotary compressor, gas compression system, refrigeration system and heat pump system, the rotary compressor includes：Cylinder, cam mechanism, slide plate and swinging block, the cam part of the cam mechanism is rotatably provided in the cylinder, the cylinder is equipped with sliding vane groove, the slide plate is installed on the sliding vane groove, the apex of the swinging block and the slide plate is hinged around first axle, the first axle is parallel with the axis of the cylinder, the swinging block compresses the periphery of the cam part, at least one surface in friction pair that the periphery of friction pair, the swinging block and the cam part that the slide plate and the swinging block are formed is formed is provided with self-lubricating coat in use.Rotary compressor of the invention improves the lubricating status between slide plate and cam part friction pair, greatly reduces the friction power loss between slide plate cam part friction pair, and self-lubricating coat in use is arranged, facilitates the incipient failure rate for reducing rotary compressor.
Description
Technical field
The invention belongs to compressor manufacturing technical fields, in particular to a kind of rotary compressor, have the rotation
The gas compression system of formula compressor, the refrigeration system with the rotary compressor and the heat pump with the rotary compressor
System.
Background technique
In compressor means, the friction loss between the apex of slide plate and the periphery of piston is larger.In order to reduce this
Friction loss installs needle roller in the apex of slide plate, the purpose of the structure is by the sliding between piston and slide plate in the related technology
Friction becomes rolling friction, and friction power loss is effectively reduced.But requirement of the needle roller structure to reliability is high, due to needle roller
Contact stress between piston sharply becomes larger, and proposes challenge to the wearability of needle roller material, and needle roller structure is easy
Existing needle roller rolls the risk of stuck failure, once needle roller rolls failure, needle roller will occur sharply to wear, until compressor is stuck
Failure, there are rooms for improvement.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of rotation
The secondary friction power loss of slide plate cam part friction of rotary compressor, the rotary compressor is small.
Rotary compressor according to an embodiment of the present invention, including：Cylinder, cam mechanism, slide plate and swinging block, the cam
The cam part of mechanism is rotatably provided in the cylinder, and the cylinder is equipped with sliding vane groove, and the slide plate is installed on the slide plate
The apex of slot, the swinging block and the slide plate is hinged around first axle, and the first axle is parallel with the axis of the cylinder, institute
State the periphery that swinging block compresses the cam part, the slide plate and the friction that the swinging block is formed be secondary, the swinging block with it is described convex
At least one surface in friction pair that the periphery of wheel portion is formed is provided with self-lubricating coat in use.
Rotary compressor according to an embodiment of the present invention significantly improves slide plate apex and cam part outer circle face contact
Stress, improve the lubricating status between slide plate and cam part friction pair, greatly reduce slide plate cam part friction pair
Between friction power loss, but also its reliability is greatly improved, and self-lubricating coat in use is set, not only reduces rotary pressure
The friction power loss of contracting machine, and help to reduce the incipient failure rate of rotary compressor, and the structure of the swinging block is simple, cost
Cheap, effect is good.
Rotary compressor according to an embodiment of the invention, the self-lubricating coat in use are Teflon, molybdenum disulfide, two
At least one of tungsten sulfide, polyimides, graphite.
Rotary compressor according to an embodiment of the invention, the technology mode of the self-lubricating coat in use are spraying, leaching
At least one of stain, deposition, plating, coating.
Rotary compressor according to an embodiment of the invention, the apex of the slide plate are set with one in the swinging block
There is the open slot of arc, another includes the hinged face of arc, and the hinged face and the open slot are hinged.
Rotary compressor according to an embodiment of the invention, the apex of the slide plate include slide plate interconnecting piece and described
Hinged face, the width of the slide plate interconnecting piece are less than the diameter in the hinged face.
Rotary compressor according to an embodiment of the invention, the radian of the open slot are described hinged greater than 180 °
The radian in face is greater than 180 °.
Rotary compressor according to an embodiment of the invention, the swinging block have for compressing supporting for the cam part
Pressure surface, it is described compress face be arc, and it is described compress face at least partly with the periphery inscribe of the cam part.
Rotary compressor according to an embodiment of the invention, the swinging block have for compressing supporting for the cam part
Pressure surface, the face that compresses is plane.
The invention also provides a kind of gas compression systems, with rotary compressor described in any of the above-described kind.
The invention also provides a kind of refrigeration systems, with rotary compressor described in any of the above-described kind.
The invention also provides a kind of heat pump systems, with rotary compressor described in any of the above-described kind.
The gas compression system, the refrigeration system, the heat pump system and above-mentioned rotary compressor relative to
Advantage possessed by the prior art is identical, and details are not described herein.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of rotary compressor according to an embodiment of the present invention；
Fig. 2 is end view drawing of the rotary compressor according to an embodiment of the present invention at cylinder；
Fig. 3 is the partial enlarged view in Fig. 2 at A；
Fig. 4-Fig. 7 is the structural schematic diagram of swinging block according to an embodiment of the present invention；
Fig. 8-Fig. 9 is the structural schematic diagram of slide plate according to an embodiment of the present invention；
Figure 10-Figure 13 is the structural schematic diagram of slide plate according to an embodiment of the present invention and swinging block cooperation；
Figure 14 is cross-sectional view of the rotary compressor according to an embodiment of the invention at cylinder；
Figure 15 is the cross-section diagram in Figure 14 at X-X；
Figure 16 is cross-sectional view of the rotary compressor in accordance with another embodiment of the present invention at cylinder；
Figure 17 is cross-sectional view of the rotary compressor of another embodiment according to the present invention at cylinder；
Figure 18 is cross-sectional view of the rotary compressor of further embodiment according to the present invention at cylinder；
Figure 19 is the partial enlarged view in Figure 18 at B；
Figure 20-Figure 21 is the structural schematic diagram of slide plate according to an embodiment of the present invention；
Figure 22-Figure 23 is the structural schematic diagram of supplementary bearing according to an embodiment of the present invention；
Figure 24-Figure 33 is the connection procedure schematic diagram of swinging block according to an embodiment of the present invention；
Figure 34 is the graph of relation of the COP and (r1-r2)/r2 of rotary compressor according to an embodiment of the present invention；
Figure 35 is the graph of relation of the COP and t2/t1 of rotary compressor according to an embodiment of the present invention.
Appended drawing reference：
Cylinder 10, projection 11 of the gas vent of base bearing in the end face of cylinder, notch 12, sliding vane groove 13,
Base bearing 21, supplementary bearing 22, oil supply gallery 23,
Cam mechanism 30, crankshaft 31, piston 32, keyway 33, key 34, boss 35,
Slide plate 40, open slot 41, guide groove 42, diversion trench 43, slide plate interconnecting piece 46,
Swinging block 50, the first sub- swinging block 51, hinged face 52, the first welding surface 53, the second sub- swinging block 54 compress face 55, swinging block
Interconnecting piece 56, the second welding surface 57,
Rotor 61, stator 62, body 71, upper housing 72, lower case 73.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Embodiment one
Rotary compressor according to embodiments of the present invention is described below with reference to Fig. 1-Figure 35, which includes：
Casing, stator 62, rotor 61, cam mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, cam
Mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
Rotor 61 is connected with cam mechanism 30, rotates for driving cam means 30, base bearing 21, supplementary bearing 22 are set respectively
Limit compression chamber between the upper and lower surfaces of cylinder 10, cylinder 10, base bearing 21 and supplementary bearing 22, cam mechanism 30 it is convex
Wheel portion is rotatably provided in cylinder 10.
As shown in Fig. 2, piston 32 is set in crankshaft 31 in the embodiment that cam mechanism 30 includes crankshaft 31 and piston 32
Eccentric part outside, the cam part of cam mechanism 30 includes piston 32, and piston 32 is rotatably provided in cylinder 10, and piston 32 exists
It is rotatably fitted in compression chamber under the driving of crankshaft 31.Certainly, cam mechanism 30 or integral type.
As shown in Fig. 2, cylinder 10 is equipped with sliding vane groove 13, slide plate 40 is installed on sliding vane groove 13, the elder generation of swinging block 50 and slide plate 40
End is hinged around first axle, and first axle is parallel with the axis of cylinder 10, and swinging block 50 compresses the periphery of cam part, in the rotation
It in formula compressor operation, is slidably matched between swinging block 50 and the periphery of cam part, forms sliding friction pair.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 extend into the cam part in compression chamber close to cam mechanism 30
One end of the periphery of (piston 32).One end of swinging block 50 and the apex of slide plate 40 offset, the other end and cam machine of swinging block 50
The periphery of the cam part (piston 32) of structure 30 offsets.Swinging block 50, which has, compresses face 55, compresses the outer circle that face 55 compresses cam part
Face compresses the width that face 55 is greater than the apex of slide plate 40 along the width of the periphery circumferential direction of cam part.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses convex always
The periphery of wheel portion (piston 32), swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is being parallel to 10 end of cylinder
The direction in face is swung.
It is understood that by between slide plate 40 and cam part be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between cam part, lubricating status become hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss obtains
Cooling capacity leakage to being effectively reduced, and between slide plate 40 and cam part also reduces.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, greatly reduces 40 cam part of slide plate and rub
The friction power loss between pair is wiped, but also its reliability is greatly improved, and the structure of the swinging block 50 is simple, at low cost
Honest and clean, effect is good.
Embodiment two
Rotary compressor according to embodiments of the present invention is described below with reference to Fig. 1-Figure 35, which includes：
Casing, stator 62, rotor 61, cam mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, cam
Mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
Rotor 61 is connected with cam mechanism 30, rotates for driving cam means 30, base bearing 21, supplementary bearing 22 are set respectively
Limit compression chamber between the upper and lower surfaces of cylinder 10, cylinder 10, base bearing 21 and supplementary bearing 22, cam mechanism 30 it is convex
Wheel portion is rotatably provided in cylinder 10.
As shown in Fig. 2, piston 32 is set in crankshaft 31 in the embodiment that cam mechanism 30 includes crankshaft 31 and piston 32
Eccentric part outside, the cam part of cam mechanism 30 includes piston 32, and piston 32 is rotatably provided in cylinder 10, and piston 32 exists
It is rotatably fitted in compression chamber under the driving of crankshaft 31.Certainly, cam mechanism 30 or integral type.
As shown in Fig. 2, cylinder 10 is equipped with sliding vane groove 13, slide plate 40 is installed on sliding vane groove 13, the elder generation of swinging block 50 and slide plate 40
End is hinged around first axle, and first axle is parallel with the axis of cylinder 10, and swinging block 50 compresses the periphery of cam part, in the rotation
It in formula compressor operation, is slidably matched between swinging block 50 and the periphery of cam part, forms sliding friction pair.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 extend into the cam part in compression chamber close to cam mechanism 30
One end of the periphery of (piston 32).One end of swinging block 50 and the apex of slide plate 40 offset, the other end and cam machine of swinging block 50
The periphery of the cam part (piston 32) of structure 30 offsets.Swinging block 50, which has, compresses face 55, compresses the outer circle that face 55 compresses cam part
Face compresses the width that face 55 is greater than the apex of slide plate 40 along the width of the periphery circumferential direction of cam part.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses convex always
The periphery of wheel portion (piston 32), swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is being parallel to 10 end of cylinder
The direction in face is swung.
It is understood that by between slide plate 40 and cam part be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between cam part, lubricating status become hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss obtains
Cooling capacity leakage to being effectively reduced, and between slide plate 40 and cam part also reduces.
In the friction pair that the periphery of friction pair, swinging block 50 and cam part that slide plate 40 and swinging block 50 are formed is formed at least
One surface is provided with self-lubricating coat in use.For example the surface of slide plate 40 cooperated with swinging block 50 can be equipped with self-lubricating coat in use, or
The surface of person's swinging block 50 cooperated with slide plate 40 can be equipped with self-lubricating coat in use or swinging block 50 with the periphery of cam part
The periphery that surface is equipped with self-lubricating coat in use or cam part is equipped with self-lubricating coat in use, in aforementioned four surface, can be wherein
There is self-lubricating coat in use on one surface, and perhaps there is self-lubricating coat in use on wherein two surface or wherein there is self-lubricating painting on three surfaces
Layer, or wherein there is self-lubricating coat in use on four surfaces.In a specific embodiment, the both ends of swinging block 50 are equipped with from profit
Sliding coating, the process that can reduce coating self-lubricating coat in use in this way simplify processing flow.
The material of self-lubricating coat in use is at least one of Teflon, molybdenum disulfide, tungsten disulfide, polyimides, graphite.
The technology mode of self-lubricating coat in use is at least one of spraying, dipping, deposition, plating, coating.
Self-lubricating coat in use, which can improve, lubricates insufficient state between above-mentioned friction pair, reaches reduction friction power loss, Er Qiezeng
The strong effect for the secondary initial stage adjustment that rubs, greatly reduces the failure rate of rotary compressor initial stage operating.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, greatly reduces 40 cam part of slide plate and rub
The friction power loss between pair is wiped, but also its reliability is greatly improved, and is arranged self-lubricating coat in use, not only reduces rotation
The friction power loss of rotary compressor, and help to reduce the incipient failure rate of rotary compressor, and the structure of the swinging block 50
Simply, low in cost, effect is good.
Embodiment three
It is rotary according to embodiments of the present invention below with reference to Fig. 1-Fig. 4, Fig. 6, Fig. 8-Figure 10, Figure 12, Figure 14-Figure 35 description
Compressor, the rotary compressor include：Casing, stator 62, rotor 61, cam mechanism 30, cylinder 10, base bearing 21, countershaft
Hold 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, cam
Mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
Rotor 61 is connected with cam mechanism 30, rotates for driving cam means 30, base bearing 21, supplementary bearing 22 are set respectively
Limit compression chamber between the upper and lower surfaces of cylinder 10, cylinder 10, base bearing 21 and supplementary bearing 22, cam mechanism 30 it is convex
Wheel portion is rotatably provided in cylinder 10.
As shown in Fig. 2, piston 32 is set in crankshaft 31 in the embodiment that cam mechanism 30 includes crankshaft 31 and piston 32
Eccentric part outside, the cam part of cam mechanism 30 includes piston 32, and piston 32 is rotatably provided in cylinder 10, and piston 32 exists
It is rotatably fitted in compression chamber under the driving of crankshaft 31.Certainly, cam mechanism 30 or integral type.
As shown in figs 2-4, cylinder 10 is equipped with sliding vane groove 13, and slide plate 40 is installed on sliding vane groove 13, swinging block 50 and slide plate 40
Apex it is hinged around first axle, first axle is parallel with the axis of cylinder 10, swinging block 50 have compresses face 55, compress face 55 and support
The periphery of belling wheel portion, and the periphery inscribe in face 55 Yu cam part is compressed, in the rotary compressor course of work, support
It is slidably matched between pressure surface 55 and the periphery of cam part, forms sliding friction pair.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 extend into the cam part in compression chamber close to cam mechanism 30
One end of the periphery of (piston 32).One end of swinging block 50 and the apex of slide plate 40 offset, the other end and cam machine of swinging block 50
The periphery of the cam part (piston 32) of structure 30 offsets.Swinging block 50, which has, compresses face 55, compresses the outer circle that face 55 compresses cam part
Face compresses the width that face 55 is greater than the apex of slide plate 40 along the width of the periphery circumferential direction of cam part.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses convex always
The periphery of wheel portion (piston 32), swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is being parallel to 10 end of cylinder
The direction in face is swung.
It is understood that by between slide plate 40 and cam part be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between cam part, the contact between slide plate 40 and cam part become inscribe from original circumscribed contact and contact, profit
Sliding state becomes hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss is effectively reduced, and slide plate 40 with
Cooling capacity leakage between cam part also reduces.
Since the face 55 that compresses of swinging block 50 is arc-shaped, and the periphery inscribe in face 55 Yu cam part is compressed, in this way, swinging block
50 compress is easily formed oil film between face 55 and the periphery of cam part, and can maintain enough oil film thicknesses, so as to
To effectively reduce the contact area between swinging block 50 and the periphery of cam part, and then the friction damage of friction pair is effectively reduced
It loses.
Compressing face 55 is the arc surface that radius is r1, and the radius of the periphery of cam part is r2.
Inventor is had found by many experiments, for the rotary compressor of the embodiment of the present invention, works as satisfaction：0.01%≤
(r1-r2)/r2 when, compressing for swinging block 50 is easily formed oil film between face 55 and the periphery of cam part, and can maintain enough
Oil film thickness, so as to effectively reduce the contact area between swinging block 50 and the periphery of cam part, and then be effectively reduced
The friction loss of friction pair.
Inventor passes through many experiments discovery, relation curve such as Figure 34 of the COP of rotary compressor and (r1-r2)/r2
Shown, when (r1-r2)/r2 is too small, gap is too small between swinging block 50 and the periphery of cam part, and lubricating oil not easily passs through the gap
Oil film is generated in engaging friction is secondary, is had an adverse effect to COP；(r1-r2) oil film bearing capacity when/r2 is excessive, in friction pair
Decline also results in the by-produced metal contact of friction, has an adverse effect to COP.
Work as satisfaction：When 0.01%≤(r1-r2)/r2≤1%, such as (r1-r2)/r2=0.05%, or (r1-r2)/
R2=0.1%, or (r1-r2)/r2=0.5%, compressing for swinging block 50 are easily formed between face 55 and the periphery of cam part
Oil film, and enough oil film thicknesses can be maintained, so as to effectively reduce connecing between swinging block 50 and the periphery of cam part
Contacting surface product, and then the friction loss of friction pair is effectively reduced.
The area for compressing face 55 on increasing swinging block 50 can further decrease and compress face 55 and cam part on swinging block 50
Face pressure between periphery further decreases the outer circle for compressing face 55 and cam part on swinging block 50 to increase oil film thickness
Contact area between face reduces the friction loss of friction pair.
To increase the area for compressing face 55 on swinging block 50, then need to increase the width for compressing face 55.To avoid compressor
When operation, the sliding vane groove 13 of swinging block 50 and cylinder 10 generates interference, needs to open up on 10 sliding vane groove of cylinder, 13 corresponding position scarce
Mouth 12, if the notch 12 is provided at the corresponding sliding vane groove 13 of exhaust side, can generate clearance volume, the high pressure after having compressed
Refrigerant can remain in the escape groove, and 10 internal volume of cylinder is occupied after expansion, inspiratory capacity be reduced, to reduce compressor efficiency.
The width for compressing face 55 is wider, then 12 volume of notch for needing to open up on 10 exhaust side sliding vane groove 13 of cylinder is bigger,
Clearance volume is bigger, and compressor efficiency caused by clearance volume influences bigger.
The width for compressing face 55 is wider, and the oil film thickness compressed between face 55 and the periphery of cam part is thicker, and oil film is thick
After degree reaches the metal contact avoided completely enough between the friction pair to a certain degree, the width in the face of compressing 55 is further increased
The viscous loss that the oil film between friction pair can be increased instead, reduces the efficiency of compressor.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching, improves the lubricating status between slide plate 40 and cam part friction pair, and swinging block 50 compresses face 55 and cam part
It is easily formed oil film between periphery, and enough oil film thicknesses can be maintained, so as to effectively reduce swinging block 50 and cam
Contact area between the periphery in portion, and then the friction loss of friction pair is effectively reduced.
In some embodiments, slide plate 40 with a thickness of t1, width of the swinging block 50 at the face that compresses 55 is t2, in other words,
One end width that swinging block 50 and the periphery of cam part offset is t2.
Inventor has found that the relation curve of the COP and t2/t1 of rotary compressor are as shown in figure 35 by many experiments,
For the rotary compressor of the embodiment of the present invention, work as satisfaction：When 0.5≤t2/t1≤3, the COP of compressor is larger.Such as t2/
T1=1 perhaps t2/t1=1.5 perhaps t2/t1=2 or t2/t1=2.5.
Example IV
It is rotary according to embodiments of the present invention below with reference to Fig. 1-Fig. 4, Fig. 6, Fig. 8-Figure 10, Figure 12, Figure 14-Figure 35 description
Compressor, the rotary compressor include：Casing, stator 62, rotor 61, cam mechanism 30, cylinder 10, base bearing 21, countershaft
Hold 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, cam
Mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
Rotor 61 is connected with cam mechanism 30, rotates for driving cam means 30, base bearing 21, supplementary bearing 22 are set respectively
Limit compression chamber between the upper and lower surfaces of cylinder 10, cylinder 10, base bearing 21 and supplementary bearing 22, cam mechanism 30 it is convex
Wheel portion is rotatably provided in cylinder 10.
As shown in Fig. 2, piston 32 is set in crankshaft 31 in the embodiment that cam mechanism 30 includes crankshaft 31 and piston 32
Eccentric part outside, the cam part of cam mechanism 30 includes piston 32, and piston 32 is rotatably provided in cylinder 10, and piston 32 exists
It is rotatably fitted in compression chamber under the driving of crankshaft 31.Certainly, cam mechanism 30 or integral type.
As shown in Fig. 2-Fig. 3, cylinder 10 is equipped with sliding vane groove 13, and slide plate 40 is installed on sliding vane groove 13, such as Fig. 3-Figure 13 institute
Show, one in slide plate 40 and swinging block 50 is equipped with the open slot 41 of arc, another in slide plate 40 and swinging block 50 includes arc
Hinged face 52, hinged face 52 is hinged around first axle with open slot 41, and first axle is parallel with the axis of cylinder 10, swinging block 50
The periphery for compressing cam part slides between swinging block 50 and the periphery of cam part in the rotary compressor course of work
Cooperation forms sliding friction pair.
In the embodiment shown in Fig. 3-Fig. 5, Fig. 8, Figure 10, Figure 11, the apex of slide plate 40 is equipped with the open slot 41 of arc,
Swinging block 50 includes the hinged face 52 of arc, and swinging block 50 may include cylindrical or the cylindrical articulated joint of fan, and hinged face 52 is hinged
The open slot 41 of the part peripheral wall of head, articulated joint and 40 apex of slide plate is hinged.
In the embodiment shown in Fig. 6-Fig. 7, Fig. 9, Figure 12, Figure 13, the apex of slide plate 40 is equipped with the hinged face 52 of arc,
Swinging block 50 includes the hinged face 52 of arc, and slide plate 40 may include cylindrical or the cylindrical articulated joint of fan, and hinged face 52 is hinged
The open slot 41 of the part peripheral wall of head, articulated joint and swinging block 50 is hinged.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 extend into the cam part in compression chamber close to cam mechanism 30
One end of the periphery of (piston 32).One end of swinging block 50 and the apex of slide plate 40 offset, the other end and cam machine of swinging block 50
The periphery of the cam part (piston 32) of structure 30 offsets.Swinging block 50, which has, compresses face 55, compresses the outer circle that face 55 compresses cam part
Face compresses the width that face 55 is greater than the apex of slide plate 40 along the width of the periphery circumferential direction of cam part.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses convex always
The periphery of wheel portion (piston 32), swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is being parallel to 10 end of cylinder
The direction in face is swung.
It is understood that by between slide plate 40 and cam part be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between cam part, the contact between slide plate 40 and cam part become inscribe from original circumscribed contact and contact, profit
Sliding state becomes hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss is effectively reduced, and slide plate 40 with
Cooling capacity leakage between cam part also reduces.
When the rotary compressor works, under the effect of 10 inside and outside differential pressure of cylinder, above-mentioned hinged face 52 and open slot 41
Inner wall is close together and generates relative motion, and it is secondary to constitute friction between contact surface.
The radius in hinged face 52 is r3, and the radius of open slot 41 is r4, and inventor is had found by many experiments, for this hair
The rotary compressor of bright embodiment, when (r4-r3)/r3 is too small, gap is too small between swinging block 50 and the periphery of cam part, profit
Lubricating oil not easily passs through the secondary interior generation oil film of the gap engaging friction, has an adverse effect to COP；(r4-r3) it when/r3 is excessive, rubs
The oil film depression of bearing force in pair is wiped, the by-produced direct contact of friction is also resulted in, has an adverse effect to COP.
Work as satisfaction：When 0.1%≤(r4-r3)/r3≤2%, such as (r4-r3)/r3=0.5, or (r4-r3)/r3=
0.5, perhaps (r4-r3)/r3=1 or (r4-r3)/r3=1.5 are easily formed oil film between the surface of friction pair, and can
To maintain enough oil film thicknesses, so as to effectively reduce the contact area between swinging block 50 and slide plate 40, and then effectively drop
The friction loss of low friction pair.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, is easily formed between swinging block 50 and slide plate 40
Oil film, and enough oil film thicknesses can be maintained, so as to effectively reduce the contact area between swinging block 50 and slide plate 40, into
And the friction loss of friction pair is effectively reduced.
Embodiment five
Rotary compressor according to embodiments of the present invention is described below with reference to Fig. 1-Figure 35, which includes：
Casing, stator 62, rotor 61, crankshaft 31, piston 32, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, crankshaft
31, piston 32, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
As shown in Fig. 1-Figure 17, rotor 61 is connected with crankshaft 31, for driving crankshaft 31 to rotate, base bearing 21, supplementary bearing
22 are respectively provided at the upper and lower surfaces of cylinder 10, and compression chamber, piston 32 are limited between cylinder 10, base bearing 21 and supplementary bearing 22
It is set in outside the eccentric part of crankshaft 31, piston 32 is rotatably provided in cylinder 10, and piston 32 can revolve under the driving of crankshaft 31
Turn ground cooperation in compression chamber.
As shown in Figure 14, Figure 16 and Figure 17, cylinder 10 is equipped with sliding vane groove 13, and slide plate 40 is installed on sliding vane groove 13, swinging block 50
Hinged around first axle with the apex of slide plate 40, first axle is parallel with the axis of cylinder 10, and swinging block 50 compresses the outer of piston 32
Disc is slidably matched between swinging block 50 and the periphery of piston 32 in the rotary compressor course of work, forms sliding and rubs
It wipes secondary.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 is extend into compression chamber close to the one of the periphery of piston 32
End.One end of swinging block 50 and the apex of slide plate 40 offset, and the periphery of the other end and piston 32 of swinging block 50 offsets.Swinging block 50 has
Face 55 is compressed, the periphery that face 55 compresses cam part is compressed, the width for compressing face 55 along the periphery circumferential direction of cam part is greater than
The width of the apex of slide plate 40.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses work always
The periphery of plug 32, swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is in the direction for being parallel to 10 end face of cylinder
It swings.
It is understood that by between slide plate 40 and piston 32 be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between piston 32, lubricating status become hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss obtains
Cooling capacity leakage to being effectively reduced, and between slide plate 40 and piston 32 also reduces.
As shown in Figure 14-Figure 17, retaining structure is equipped between the eccentric part and piston 32 of crankshaft 31, retaining structure is for limiting
Circumferentially opposed movement is generated between koji-making axis 31 and piston 32, is rubbed to avoid generating between the eccentric part of crankshaft 31 and piston 32
It wears mistake.
It is understood that the relative motion between the periphery of piston 32 and the apex of slide plate 40 will increase at this time, it is living
Friction loss between the periphery of plug 32 and the apex of slide plate 40 increased, but due to using above-mentioned swinging block 50, piston
Friction loss between 32 periphery and the apex of slide plate 40 has become very little, further installs detent knot on this basis
Structure prevents the relative motion of the eccentric part and piston 32 of crankshaft 31, for the drop of total friction loss of the rotary compressor
It is low, it is still very favorable.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, greatly reduces 40 cam part of slide plate and rub
The friction power loss between pair is wiped, and can be effectively reduced between the eccentric part of crankshaft 31 and piston 32 and generate friction loss.
Retaining structure can be multiple structural forms.
In some embodiments, retaining structure includes the boss 35 that groove protrudes into groove, the internal perisporium and crankshaft of piston 32
One in the periphery wall of 31 eccentric part is equipped with groove, in the periphery wall of the eccentric part of the internal perisporium and crankshaft 31 of piston 32
Another is equipped with boss 35.
As shown in figure 16, the internal perisporium of piston 32 is equipped with boss 35, and the periphery wall of the eccentric part of crankshaft 31 is equipped with groove, convex
Platform 35 protrudes into groove, and boss 35 and groove can be with clearance fits.
As shown in figure 17, the internal perisporium of piston 32 is equipped with groove, and the periphery wall of the eccentric part of crankshaft 31 is equipped with boss 35, convex
Platform 35 protrudes into groove, and boss 35 and groove can be with clearance fits.
In further embodiments, retaining structure includes keyway 33 and key 34, and key 34 is installed on keyway 33, and keyway 33 is set
In 32 internal perisporium of eccentric part periphery wall and piston of crankshaft 31.The manufacturing of keyway 33 and key 34 is more preferably.Key 34 can be length
The cross section of cube, key 34 can be square, in order to install.
As shown in figure 15, at least one of the two parts part on piston 32 and crankshaft 31 of keyway 33 is blind hole, is changed
Yan Zhi, at least one of the keyway 33 in keyway 33 and crankshaft 31 in piston 32 are blind hole, and the blind hole part of keyway 33
The distance of lower end to the lower end surface of piston 32 is h1, is met：h1≥1mm.In this way, the rotary compressor can be effectively prevented
When operation, 34 expanded by heating of key perhaps tilts or generates friction loss with lower bearing upper end face contact under the effect of gravity.
As shown in figure 15, the upper surface of key 34 is lower than the upper surface of piston 32, and the upper surface of key 34 and piston 32 is upper
The spacing of end face is h1, is met：H1 >=0.005mm, further, h1 >=0.02mm.In this way, the rotation can be effectively prevented
When formula compressor is run, 34 expanded by heating of key, or inclination, cause to generate friction loss with upper bearing (metal) lower end face contact.
As shown in figure 14, the maximum distance of spindle axis of the keyway 33 apart from crankshaft 31 be L1, L1 be keyway 33 relative to
The farthest point of the spindle axis of crankshaft 31 to crankshaft 31 spindle axis distance, the gas vent of base bearing 21 is at the end of cylinder 10
The minimum distance of spindle axis of the projection 11 in face apart from crankshaft 31 is L2, and L2 is the gas vent of base bearing 21 at the end of cylinder 10
The projection 11 in face relative to the spindle axis of crankshaft 31 closest approach to crankshaft 31 spindle axis distance, meet：L2-L1≥
0.2mm。
It is understood that the sealed width of 32 end face of piston is reduced after opening up keyway 33 on piston 32, to guarantee
Sealed width between 32 end face of gas vent and piston, by the way that the numberical range of L2-L1, eccentric part and work when crankshaft 31 is arranged
Plug 32 using 31 spindle axis of crankshaft be rotation center rotate to the keyway 33 on piston 32 fall into exhaust bore region when, be vented
Sealed width ensures to avoid influencing sealing performance in 0.2mm or more between 32 end face of hole and piston.
Keyway 33 and 34 clearance fit of key, and keyway 33 and key 34 are S1, crankshaft along the total backlash of 32 radial direction of piston
Total backlash between 31 eccentric part and piston 32 is S2, meets relational expression S1 > S2.
It is understood that there are radial clearance, the rotary pressures between 31 eccentric part outer circle of crankshaft and 32 inner circle of piston
When contracting machine is run, piston 32 is adjacent to 31 eccentric part of crankshaft under gas force effect, guarantee 32 outer circle of piston and 10 inner circle of cylinder it
Between radial clearance.By the way that S1 > S2 is arranged, piston 32 when can prevent key 34, keyway 33 from influencing rotary compressor operation
Radial clearance between 10 inner circle of outer circle and cylinder, i.e. the presence of key 34 do not interfere with compressor operation when 32 outer circle of piston and
Gap between 10 inner circle of cylinder.
Embodiment six
Rotary compressor according to embodiments of the present invention is described below with reference to Fig. 1-Figure 35, which includes：
Casing, stator 62, rotor 61, cam mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, cam
Mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
Rotor 61 is connected with cam mechanism 30, rotates for driving cam means 30, base bearing 21, supplementary bearing 22 are set respectively
Limit compression chamber between the upper and lower surfaces of cylinder 10, cylinder 10, base bearing 21 and supplementary bearing 22, cam mechanism 30 it is convex
Wheel portion is rotatably provided in cylinder 10.
As shown in figure 18, in the embodiment that cam mechanism 30 includes crankshaft 31 and piston 32, piston 32 is set in crankshaft
Outside 31 eccentric part, the cam part of cam mechanism 30 includes piston 32, and piston 32 is rotatably provided in cylinder 10, piston 32
It is rotatably fitted in compression chamber under the driving of crankshaft 31.Certainly, cam mechanism 30 or integral type.
As shown in Figure 18 and Figure 19, cylinder 10 is equipped with sliding vane groove 13, and slide plate 40 is installed on sliding vane groove 13, swinging block 50 and cunning
The apex of piece 40 is hinged around first axle, and first axle is parallel with the axis of cylinder 10, and swinging block 50 compresses the periphery of cam part,
It in the rotary compressor course of work, is slidably matched between swinging block 50 and the periphery of cam part, forms sliding friction pair.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 extend into the cam part in compression chamber close to cam mechanism 30
One end of the periphery of (piston 32).One end of swinging block 50 and the apex of slide plate 40 offset, the other end and cam machine of swinging block 50
The periphery of the cam part (piston 32) of structure 30 offsets.Swinging block 50, which has, compresses face 55, compresses the outer circle that face 55 compresses cam part
Face compresses the width that face 55 is greater than the apex of slide plate 40 along the width of the periphery circumferential direction of cam part.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses convex always
The periphery of wheel portion (piston 32), swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is being parallel to 10 end of cylinder
The direction in face is swung.
It is understood that by between slide plate 40 and cam part be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between cam part, lubricating status become hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss obtains
Cooling capacity leakage to being effectively reduced, and between slide plate 40 and cam part also reduces.
Slide plate 40 is provided with diversion trench 43 in the side parallel with the end face of cylinder 10, and diversion trench 43 is deep gouge or through slot,
Diversion trench 43 extends to the apex of slide plate 40, for example the apex of slide plate 40 is equipped with the open slot 41 of arc, and swinging block 50 includes arc
Hinged face 52, hinged face 52 is hinged with open slot 41, and diversion trench 43 is connected to open slot 41, in base bearing 21, supplementary bearing 22
One be equipped with oil supply gallery 23, oil supply gallery 23 and at least part period of the diversion trench 43 in 40 motion process of slide plate
Perforation.
It can be understood that oil supply gallery 23 forms oil leab when being connected to diversion trench 43, lubricating oil is acted in high pressure
Under, out of, oil supply gallery 23 flows into the first end side surface of slide plate 40 diversion trench 43, for the profit between 40 apex of slide plate and swinging block 50
It is sliding.The reliability of swinging block 50 and slide plate 40 is improved, while reducing friction area between slide plate 40 and bearing, reduces frictional work
Consumption, effectively improves the performance of compressor.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, greatly reduces 40 cam part of slide plate and rub
The friction power loss between pair is wiped, but also its reliability is greatly improved, and lubricating oil is introduced into slide plate 40 and swinging block 50
Between, the reliability of swinging block 50 and slide plate 40 is improved, while reducing friction area between slide plate 40 and bearing, reduces frictional work
Consumption.
In some embodiments, as shown in figure 20, diversion trench 43 is projected as sector in plane where the end face of cylinder 10,
Diversion trench 43 is sector, and the radian of diversion trench 43 is greater than 180 °.
In some embodiments, as shown in figure 21, diversion trench 43 plane where the end face of cylinder 10 be projected as it is oval
Shape, diversion trench 43 are oblong, and diversion trench 43 includes strip section and semi-circular segments, and one end of strip section extends to 40 apex of slide plate,
For example one end of strip section extends to and is connected to the open slot 41 on slide plate 40, the other end of strip section is connected with semi-circular segments.It is long
Circular diversion trench 43 is easier to penetrate through with oil supply gallery 23 in 40 motion process of slide plate, and the diversion trench 43 of oblong exists in other words
40 motion process of slide plate and the time that oil supply gallery 23 penetrates through are longer.
As shown in Figure 18 and Figure 19, when the center that slide plate 40 moves to separate cylinder 10 is farthest, diversion trench 43 is apart from gas
The maximum distance at the center of cylinder 10 is L3, and L3 is 43 phase of diversion trench when the center that slide plate 40 moves to separate cylinder 10 is farthest
For cylinder 10 center farthest point to the center of cylinder 10 distance, and meet：L3 > D/2, D are the internal diameter of cylinder 10.
In this manner it is ensured that diversion trench 43 has an opportunity to penetrate through with oil supply gallery 23 in 40 motion process of slide plate.
As shown in Figure 22 and Figure 23, center minimum range of the oil supply gallery 23 apart from cylinder 10 is L4, and L4 is oil supply gallery
23 relative to the center of cylinder 10 closest approach to the center of cylinder 10 distance, meet：D/2 < L4 < L3.In this way, can protect
Card diversion trench 43 has an opportunity to penetrate through with oil supply gallery 23 in 40 motion process of slide plate.
In some embodiments, as shown in figure 22, the one end and base bearing 21 or pair of oil supply gallery 23 away from diversion trench 43
Oil sump perforation at 22 outer diameter of bearing, oil supply gallery 23 can be strip.
In further embodiments, as shown in figure 23, oil supply gallery 23 and 22 thickness direction of base bearing 21 or supplementary bearing
Another side perforation, oil supply gallery 23 can be axially through base bearing 21 or supplementary bearing 22.
In a specific embodiment, oil supply gallery 23 is arranged on supplementary bearing 22, and slide plate 40 is towards supplementary bearing 22
Side is equipped with diversion trench 43.
Embodiment seven
Rotary compressor according to embodiments of the present invention is described below with reference to Fig. 1-Figure 33, which includes：
Casing, stator 62, rotor 61, crankshaft 31, piston 32, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, crankshaft
31, piston 32, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
As depicted in figs. 1 and 2, rotor 61 is connected with crankshaft 31, for driving crankshaft 31 to rotate, base bearing 21, supplementary bearing
22 are respectively provided at the upper and lower surfaces of cylinder 10, and compression chamber, piston 32 are limited between cylinder 10, base bearing 21 and supplementary bearing 22
It is set in outside the eccentric part of crankshaft 31, piston 32 is rotatably provided in cylinder 10, and piston 32 can revolve under the driving of crankshaft 31
Turn ground cooperation in compression chamber.
As shown in Fig. 2, cylinder 10 is equipped with sliding vane groove 13, slide plate 40 is installed on sliding vane groove 13, the elder generation of swinging block 50 and slide plate 40
End is hinged around first axle, and first axle is parallel with the axis of cylinder 10, and swinging block 50 compresses the periphery of cam part, in the rotation
It in formula compressor operation, is slidably matched between swinging block 50 and the periphery of cam part, forms sliding friction pair.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 is extend into compression chamber close to the one of the periphery of piston 32
End.One end of swinging block 50 and the apex of slide plate 40 offset, and the periphery of the other end and piston 32 of swinging block 50 offsets.Swinging block 50 has
Face 55 is compressed, the periphery that face 55 compresses cam part is compressed, the width for compressing face 55 along the periphery circumferential direction of cam part is greater than
The width of the apex of slide plate 40.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses work always
The periphery of plug 32, swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is in the direction for being parallel to 10 end face of cylinder
It swings.
It is understood that by between slide plate 40 and piston 32 be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between piston 32, lubricating status become hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss obtains
Cooling capacity leakage to being effectively reduced, and between slide plate 40 and piston 32 also reduces.
Piston 32 can be made of plastics or graphite, for example piston 32 is by polyphenylene sulfide, polymeric liquid crystal copolymer, polyethers
One of ether ketone, ABS engineering plastics, Teflon are made.
Slide plate 40 can be made of one of ceramics, aluminium-silicon alloys, lightweight steel, Teflon.
Inventor is had found by many experiments, by increasing above-mentioned swinging block 50 newly, can make slide plate 40 apex and piston 32 it
Between stress be reduced to several megapascal from several hundred megapascal, but also 40 side institute of the periphery of piston 32,40 apex of slide plate and slide plate
The stress being subject to reduces.
Abrasion in this way between slide plate 40 and piston 32 is greatly decreased, and can reduce the power that enters of compressor, and slide plate 40 and work
Wearability, rigidity and the requirement on machining accuracy decline of plug 32, to widen the selection criteria of 32 material of piston.If in correlation
Under the structural condition of technology, although plastics density very little, its machining accuracy and wearability are unable to satisfy its job requirement, this
Also limit the development of plastic piston 32.And the rotary compressor of the embodiment of the present invention is due to slide plate 40 and piston 32
Wearability, rigidity and requirement on machining accuracy decline, may make plastic piston 32 to free from limitation.
Its common raw material of piston 32 are nickel chromium triangle molybdenum cast iron (FC300), and density is respectively 7.3g/cm3；And plastic density is big
It is generally 1~2g/cm3, the quality of piston 32 can be greatly reduced using the material.Due to 32 weight saving of piston, one side piston
32 rotational velocities will increase, and the relative velocity between piston 32 and swinging block 50 is reduced, and cause to decline into power；On the other hand, according to
Equalising torque on crankshaft 31 can mitigate balance weight weight, to further reduce into power, promote compressor efficiency.
Slide plate 40 is used as moving component, and also mutually reply is reduced after lightweight, can also to decline into power.
In other words, due to the use of above-mentioned swinging block 50, contact stress between piston 32 and slide plate 40 is reduced, so that piston
32 and slide plate 40 material select more horn of plenty, can be applied to live according to the material that can not be used in previous design common sense
Plug 32 and slide plate 40 can reduce the weight of piston 32 and slide plate 40 using above-mentioned material, realize light-weight design, slide plate 40 with
Abrasion between piston 32 is greatly decreased, and can reduce the power that enters of rotary compressor, and the wearability of slide plate 40 and piston 32,
Rigidity and requirement on machining accuracy decline, to widen the selection criteria of 32 material of piston.
Secondly, piston 32 and weight saving, 32 rotational velocity of one side piston be will increase, between piston 32 and swinging block 50
Relative velocity is reduced, and causes to decline into power；On the other hand, according to the equalising torque on crankshaft 31, balance weight also accordingly mitigates weight
Amount, to further reduce into power；In addition, piston 32 and slide plate 40 are used as moving component, replacing with light material can also have
Effect is reduced into power, to promote compressor efficiency.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, greatly reduces 40 cam part of slide plate and rub
The friction power loss between pair is wiped, and has widened the selection criteria of 40 material of piston 32 and slide plate, the lightweight of rotary compressor
Horizontal high, efficiency is high.
Embodiment eight
Rotary compressor according to embodiments of the present invention is described below with reference to Fig. 1-Figure 35, which includes：
Casing, stator 62, rotor 61, cam mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50.
Wherein, with reference to Fig. 1, casing may include body 71, upper housing 72, lower case 73, stator 62, rotor 61, cam
Mechanism 30, cylinder 10, base bearing 21, supplementary bearing 22, slide plate 40 and swinging block 50 may be mounted in casing.
Rotor 61 is connected with cam mechanism 30, rotates for driving cam means 30, base bearing 21, supplementary bearing 22 are set respectively
Limit compression chamber between the upper and lower surfaces of cylinder 10, cylinder 10, base bearing 21 and supplementary bearing 22, cam mechanism 30 it is convex
Wheel portion is rotatably provided in cylinder 10.
As shown in Fig. 2, piston 32 is set in crankshaft 31 in the embodiment that cam mechanism 30 includes crankshaft 31 and piston 32
Eccentric part outside, the cam part of cam mechanism 30 includes piston 32, and piston 32 is rotatably provided in cylinder 10, and piston 32 exists
It is rotatably fitted in compression chamber under the driving of crankshaft 31.Certainly, cam mechanism 30 or integral type.
As shown in Fig. 2, cylinder 10 is equipped with sliding vane groove 13, slide plate 40 is installed on sliding vane groove 13, the elder generation of swinging block 50 and slide plate 40
End is hinged around first axle, and first axle is parallel with the axis of cylinder 10, and swinging block 50 compresses the periphery of cam part, in the rotation
It in formula compressor operation, is slidably matched between swinging block 50 and the periphery of cam part, forms sliding friction pair.
It should be noted that the apex of slide plate 40 refers to that slide plate 40 extend into the cam part in compression chamber close to cam mechanism 30
One end of the periphery of (piston 32).One end of swinging block 50 and the apex of slide plate 40 offset, the other end and cam machine of swinging block 50
The periphery of the cam part (piston 32) of structure 30 offsets.Swinging block 50, which has, compresses face 55, compresses the outer circle that face 55 compresses cam part
Face compresses the width that face 55 is greater than the apex of slide plate 40 along the width of the periphery circumferential direction of cam part.
As shown in Figure 24-Figure 33, swinging block 50 includes connected the first sub- swinging block 51 and the second sub- swinging block 54, the first sub- swinging block
51 is hinged around first axle with the apex of slide plate 40, and the second sub- swinging block 54 compresses the periphery of cam part.
First sub- swinging block 51 and the second sub- swinging block 54 can be weldingly connected, such as the first sub- swinging block 51 and the second sub- swinging block
54 are weldingly connected using welding manner a kind of in Laser Welding, electric resistance welding, furnace brazing.
First sub- swinging block 51 and the second sub- swinging block 54 are that one of steel, cast iron or alloy are made, to weld.
It should be noted that the small volume of swinging block 50, there are two the mating surface for needing to process, the two match the tool of swinging block 50
Conjunction face is respectively used to form friction pair with slide plate 40 and cam part, easy to process by the way that swinging block 50 is decomposed into 2 subassemblies.
In the rotary compressor course of work, slide plate 40 is reciprocating along sliding vane groove 13, and swinging block 50 compresses convex always
The periphery of wheel portion (piston 32), swinging block 50 are swung around first axle relative to slide plate 40, and swinging block 50 is being parallel to 10 end of cylinder
The direction in face is swung.
It is understood that by between slide plate 40 and cam part be arranged swinging block 50, can substantially reduce slide plate 40 with
Contact stress between cam part, lubricating status become hydrldynamic pressure lubrication from original boundary lubrication substantially, and friction power loss obtains
Cooling capacity leakage to being effectively reduced, and between slide plate 40 and cam part also reduces.
Rotary compressor according to an embodiment of the present invention significantly improves 40 apex of slide plate and connects with cam part periphery
The stress of touching improves the lubricating status between slide plate 40 and cam part friction pair, greatly reduces 40 cam part of slide plate and rub
The friction power loss between pair is wiped, but also its reliability is greatly improved, and the structure of the swinging block 50 is simple, convenient for adding
Work, low in cost, effect is good.
As shown in Figure 10 and Figure 11, the apex of slide plate 40 is equipped with the open slot 41 of arc, and the first sub- swinging block 51 has arc
Hinged face 52, hinged face 52 compresses the wall surface of open slot 41, as shown in Figure 24-Figure 33, the first sub- swinging block 51 can for circle
At least part outer peripheral surface of column or the first sub- swinging block 51 be it is arc-shaped,
As shown in figure 3, there is arc to compress face 55 for the second sub- swinging block 54, and compress face 55 at least partly with cam part
Periphery inscribe.As shown in Figure 24-Figure 33, the second sub- swinging block 54 compresses a part of periphery wall that face 55 is cylinder.
As shown in Figure 24-Figure 26, the first sub- swinging block 51 has the first welding surface 53, and the first welding surface 53 is arc.
As shown in Figure 27-Figure 31, the first sub- swinging block 51 has the first welding surface 53, and the first welding surface 53 is planar shaped.
As shown in Figure 32-Figure 33, the first sub- swinging block 51 has the first welding surface 53, and the first welding surface 53 is fold-line-shaped, than
Such as the first welding surface 53 includes vertical between three sections, adjacent two sections be sequentially connected.
As shown in figure 24, the second sub- swinging block 54 has the second welding surface 57, and the second welding surface 57 is arc.
As shown in Figure 25-Figure 31, the second sub- swinging block 54 has the second welding surface 57, and the second welding surface 57 is planar shaped.
As shown in Figure 32-Figure 33, the second sub- swinging block 54 has the second welding surface 57, and the second welding surface 57 is fold-line-shaped, than
Such as the second welding surface 57 includes vertical between three sections, adjacent two sections be sequentially connected.
Certainly, when the first welding surface 53 is identical as the shape of the second welding surface 57, the first sub- swinging block 51 and the second son are shaken
The bonding area of block 54 is big, welds stronger.
The technical characteristic of above-described embodiment one to embodiment eight can be combined with each other in the case where not runing counter to be formed
New embodiment.
Above-described embodiment one to embodiment eight in the case where not runing counter to, can further include following technical characteristic with
Form new embodiment.
As shown in Fig. 3-Figure 13, the apex of slide plate 40 and an open slot 41 equipped with arc in swinging block 50, another
Hinged face 52 including arc, hinged face 52 and open slot 41 are hinged.
In the embodiment shown in Fig. 3-Fig. 5, Fig. 8, Figure 10, Figure 11, the apex of slide plate 40 is equipped with the open slot 41 of arc,
The compression chamber of open slot 41 towards cylinder 10 opens wide, and slide plate 40 is additionally provided with guide groove 42, the open end of guide groove 42 and open slot 41
It is connected, the two side walls of guide groove 42 are prolonged from the one end being connected with the side wall of open slot 41 to the other end to away from mutual direction
It stretches, swinging block 50 includes the hinged face 52 of swinging block interconnecting piece 56 and arc, and swinging block 50 may include cylindrical or fan is cylindrical hinged
Head, hinged face 52 are the part peripheral wall of articulated joint, and articulated joint and the open slot 41 of 40 apex of slide plate are hinged, swinging block interconnecting piece 56
Width is less than the diameter in hinged face 52.The cooperation of guide groove 42 and swinging block interconnecting piece 56 can prevent swinging block 50 swing when and cylinder
10 interference.The radian of open slot 41 is greater than 180 °, and the radian in hinged face 52 is greater than 180 °, and the radian in hinged face 52 is greater than open slot
41 radian.It in this way can anti-slip limiting plate 40 and the disengaging of swinging block 50.
In the embodiment shown in Fig. 6-Fig. 7, Fig. 9, Figure 12, Figure 13, the apex of slide plate 40 is equipped with the hinged face 52 of arc,
The apex of slide plate 40 includes slide plate interconnecting piece 46 and hinged face 52, and the width of slide plate interconnecting piece 46 is less than the diameter in hinged face 52,
Swinging block 50 includes the open slot 41 of arc, and slide plate 40 may include cylindrical or the cylindrical articulated joint of fan, and hinged face 52 is hinged
The open slot 41 of the part peripheral wall of head, articulated joint and swinging block 50 is hinged.Slide plate interconnecting piece 46 can prevent swinging block 50 swing when with
Cylinder 10 is interfered.The radian of open slot 41 is greater than 180 °, and the radian in hinged face 52 is greater than 180 °, and the radian in hinged face 52, which is greater than, to be opened
The radian of mouth slot 41.It in this way can anti-slip limiting plate 40 and the disengaging of swinging block 50.
As shown in Fig. 3, Fig. 4, Fig. 6, Figure 10, Figure 12, swinging block 50, which has, compresses face 55 for compress cam part, compresses face
55 be arc, and compress face 55 at least partly with the periphery inscribe of cam part.In this way, connecing between slide plate 40 and cam part
Touching becomes inscribe contact from original circumscribed contact, and friction power loss is effectively reduced, and between slide plate 40 and piston 32
Cooling capacity leakage also reduces.
As shown in Fig. 5, Fig. 7, Figure 11, Figure 13, swinging block 50, which has, compresses face 55 for compress cam part, compresses face 55
For plane.Swinging block 50 is easy to process in this way, and relative to needle roller structure in the related technology, can also reduction by a relatively large margin
Contact stress.
Swinging block 50 can be made of one of steel, cast iron, plastics, alloy, ceramics material.
As shown in Fig. 2, one end that sliding vane groove 13 is connected with the compression chamber of cylinder 10 includes the notch 12 of opened type, in this way,
It can interfere to avoid sliding vane groove 13 and above-mentioned swinging block 50.
The invention also discloses a kind of gas compression system, gas compression system of the invention includes any of the above-described kind of implementation
The rotary compressor of example.The efficiency of gas compression system according to an embodiment of the present invention, rotary compressor is high, is not easy to grind
Damage.
The invention also discloses a kind of refrigeration system, refrigeration system of the invention includes the rotation of any of the above-described kind of embodiment
Formula compressor.The efficiency of refrigeration system according to an embodiment of the present invention, rotary compressor is high, not easy to wear.
The invention also discloses a kind of heat pump system, heat pump system of the invention includes the rotation of any of the above-described kind of embodiment
Formula compressor.The efficiency of heat pump system according to an embodiment of the present invention, rotary compressor is high, not easy to wear.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of rotary compressor, which is characterized in that including：Cylinder, cam mechanism, slide plate and swinging block, the cam mechanism
Cam part be rotatably provided in the cylinder, the cylinder is equipped with sliding vane groove, and the slide plate is installed on the sliding vane groove, institute
The apex for stating swinging block and the slide plate is hinged around first axle, and the first axle is parallel with the axis of the cylinder, described to shake
Block compresses the periphery of the cam part, friction pair, the swinging block and the cam part that the slide plate and the swinging block are formed
Periphery formed friction pair at least one surface be provided with self-lubricating coat in use.
2. rotary compressor according to claim 1, which is characterized in that the self-lubricating coat in use is Teflon, two sulphur
Change at least one of molybdenum, tungsten disulfide, polyimides, graphite.
3. rotary compressor pressure texture according to claim 1, which is characterized in that the technique of the self-lubricating coat in use
Mode is at least one of spraying, dipping, deposition, plating, coating.
4. rotary compressor according to claim 1 to 3, which is characterized in that in the apex of the slide plate and the swinging block
One be equipped with arc open slot, another includes the hinged face of arc, and the hinged face and the open slot are hinged.
5. rotary compressor according to claim 4, which is characterized in that the radian of the open slot is greater than 180 °, institute
The radian for stating hinged face is greater than 180 °.
6. rotary compressor according to any one of claims 1-5, which is characterized in that the swinging block has for supporting
Press the face that compresses of the cam part, the face that compresses is arc, and it is described compress face at least partly and the cam part it is outer
Disc inscribe.
7. rotary compressor according to any one of claims 1-5, which is characterized in that the swinging block has for supporting
The face that compresses of the cam part is pressed, the face that compresses is plane.
8. a kind of gas compression system, which is characterized in that have such as rotary compression of any of claims 1-7
Machine.
9. a kind of refrigeration system, which is characterized in that have such as rotary compressor of any of claims 1-7.
10. a kind of heat pump system, which is characterized in that have such as rotary compressor of any of claims 1-7.
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| CN201810557443.9A CN108825498B (en) | 2018-06-01 | 2018-06-01 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
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| CN201810557443.9A CN108825498B (en) | 2018-06-01 | 2018-06-01 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
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| CN108825498B CN108825498B (en) | 2021-04-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109654020A (en) * | 2018-12-13 | 2019-04-19 | 宁波甬微集团有限公司 | A kind of compressor assembly and preparation method thereof |
| CN109667758A (en) * | 2019-01-31 | 2019-04-23 | 宁波甬微集团有限公司 | A kind of rotator type compression assembly, compressor and air-conditioning equipment |
| WO2019227842A1 (en) * | 2018-06-01 | 2019-12-05 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
| CN111287966A (en) * | 2018-12-06 | 2020-06-16 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019227842A1 (en) * | 2018-06-01 | 2019-12-05 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
| CN111287966A (en) * | 2018-12-06 | 2020-06-16 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
| CN109654020A (en) * | 2018-12-13 | 2019-04-19 | 宁波甬微集团有限公司 | A kind of compressor assembly and preparation method thereof |
| CN109667758A (en) * | 2019-01-31 | 2019-04-23 | 宁波甬微集团有限公司 | A kind of rotator type compression assembly, compressor and air-conditioning equipment |
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| Publication number | Publication date |
|---|---|
| CN108825498B (en) | 2021-04-06 |
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