CN107514365A - Pump assembly and there is its compressor - Google Patents
Pump assembly and there is its compressor Download PDFInfo
- Publication number
- CN107514365A CN107514365A CN201710912355.1A CN201710912355A CN107514365A CN 107514365 A CN107514365 A CN 107514365A CN 201710912355 A CN201710912355 A CN 201710912355A CN 107514365 A CN107514365 A CN 107514365A
- Authority
- CN
- China
- Prior art keywords
- pump assembly
- structural member
- inner ring
- abrasion
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005299 abrasion Methods 0.000 claims abstract description 131
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 19
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 18
- 125000004122 cyclic group Chemical group 0.000 claims description 14
- 235000014676 Phragmites communis Nutrition 0.000 claims description 10
- -1 polytetrafluoroethylene Polymers 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 description 18
- 239000003921 oil Substances 0.000 description 17
- 239000003507 refrigerant Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/16—Wear
Abstract
The invention provides a kind of pump assembly and there is its compressor.Wherein, pump assembly includes：Structural member, structural member are two；Bearing-type cylinder, it is arranged between two structural members, bearing-type cylinder includes outer ring and can be relative to the inner ring of outer ring rotating；At least one anti-abrasion structure, it is arranged at least one end face towards structural member of inner ring, to reduce the friction between bearing-type cylinder and structural member.The problem of abrasion easily occurs present invention efficiently solves the bearing-type cylinder of pump assembly in the prior art causes the reliability of pump assembly to reduce.
Description
Technical field
The present invention relates to Compressor Technology field, in particular to a kind of pump assembly and has its compressor.
Background technology
Traditional rotary blade type compressor air-breathing and exhaust structure are arranged in the side of cylinder, but due in slide plate head and cylinder
The abrasion of wall is more serious, causes the mechanical consumption of compressor bigger than normal, and overall efficiency is poor, even causes inordinate wear when serious
Deng integrity problem.
In the prior art, in order to solve the above problems, rolling element and inner ring (similar roller) shape are increased in cylinder inner wall
Into bearing-type cylinder so that the sliding motion between slide plate head and inner ring inwall is converted to the rolling between inner ring and rolling element
Motion, and then the mechanical consumption of pump assembly is reduced, improve compressor efficiency.
However, in pump assembly running, although said structure reduces the friction power loss on slide plate head, but due to
Axial gap between inner ring and flange be present.Under gas effect, the easy run-off the straight of inner ring, the i.e. center line of inner ring and rotating shaft
Center line forms angle, causes inner ring to occur to rub with flange and causes to wear, and reduces the reliability of pump assembly, and after abrasion
Caused gas leakage can also reduce compressor performance.
The content of the invention
It is a primary object of the present invention to provide a kind of pump assembly and there is its compressor, to solve in the prior art
The problem of abrasion causes the reliability of pump assembly to reduce, easily occurs for the bearing-type cylinder of pump assembly.
To achieve these goals, according to an aspect of the invention, there is provided a kind of pump assembly, including：Structural member,
Structural member is two；Bearing-type cylinder, it is arranged between two structural members, bearing-type cylinder includes outer ring and can be relative to outer
Enclose the inner ring rotated；At least one anti-abrasion structure, it is arranged at least one end face towards structural member of inner ring, to reduce axle
Hold the friction between formula cylinder and structural member.
Further, form rolling element accommodating chamber between inner ring and outer ring, some or all of anti-abrasion structure and inner ring it
Between there is axial gap, the high pressure heat exchange medium in rolling element accommodating chamber can enter axial gap, so that anti-abrasion structure is pushed up
Rise and be bonded prior to inner ring with structural member.
Further, structural member is upper flange and lower flange.
Further, limiting section is provided with least one end face towards structural member of inner ring, and anti-abrasion structure is remote
The surface of rolling element accommodating chamber side is interference fitted with limiting section.
Further, limiting section is limited ring groove, and anti-abrasion structure is cyclic structure, and the internal diameter of cyclic structure is less than spacing ring
The internal diameter of groove, and the external diameter of cyclic structure is less than or equal to the external diameter of limited ring groove, and some or all of anti-abrasion structure is remote
From having axial gap between the end face of structural member and the bottom land of limited ring groove.
Further, limiting section is positive stop lug boss, and anti-abrasion structure is cyclic structure, and cyclic structure is set on positive stop lug boss
And the two is interference fitted, the end face of the remote structural member of some or all of anti-abrasion structure and the end face towards structural member of inner ring
Between there is axial gap.
Further, bulge-structure is provided with the end face of the remote structural member of some or all of anti-abrasion structure, and it is convex
The end face of remote structural member for playing structure contacts with the bottom land of limited ring groove.
Further, there is bulge-structure on the end face of the remote structural member of some or all of anti-abrasion structure, and it is raised
The end face of the remote structural member of structure and the end contact towards structural member of inner ring.
Further, bulge-structure is arranged on the side that setting is bonded with inner ring of anti-abrasion structure.
Further, pump assembly also includes the elastic component of corrugated or polyline shaped, elastic component be arranged on limiting section with
And can be with the end contact towards structural member of inner ring between anti-abrasion structure.
Further, elastic component is waveform reed or fold-line-shaped reed.
Further, anti-abrasion structure is made up of fluororesin.
Further, anti-abrasion structure is made up of polytetrafluoroethylene (PTFE).
Further, anti-abrasion structure is that graphite or molybdenum disulfide or copper powder or fibrous strengthening material are added in polytetrafluoroethylene (PTFE)
Made of one or more in material.
According to another aspect of the present invention, there is provided a kind of compressor, including above-mentioned pump assembly.
Apply the technical scheme of the present invention, pump assembly includes structural member, bearing-type cylinder and at least one anti-abrasion structure.
Wherein, structural member is two.Bearing-type cylinder is arranged between two structural members, and bearing-type cylinder includes outer ring and can be relative
In the inner ring of outer ring rotating, and rolling element accommodating chamber is formed between inner ring and outer ring.At least one anti-abrasion structure is arranged on inner ring
At least one end face towards structural member on, to reduce the friction between bearing-type cylinder and structural member.So, anti-abrasion structure
It is arranged on the end face towards structural member of inner ring so that will not be in contact and rub between the inner ring and structural member of bearing-type cylinder
Wipe.
In pump assembly running, inner ring can rotate relative to outer ring, even if inner ring is sent out relative to outer ring
Raw to tilt, the anti-abrasion structure being arranged on inner ring directly contacts with structural member, and then prevents inner ring from occurring directly to connect with structural member
Wiping is touched, avoids the two from being worn caused by mutual rubbing action.Friction phase is directly contacted with structural member with inner ring in the prior art
Than the pump assembly in the application can prevent inner ring and structural member from wearing, and extending structure part and bearing-type cylinder make
With the life-span, and then the functional reliability of pump assembly is improved, lift the performance of pump assembly.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the decomposition texture schematic diagram of the embodiment one of the pump assembly according to the present invention；
Fig. 2 shows the sectional view of the pump assembly in Fig. 1；
The anti-abrasion structure that Fig. 3 shows in Fig. 1 is arranged on sectional view during the upper and lower end face of inner ring；
The anti-abrasion structure that Fig. 4 shows in Fig. 1 is positioned only at the decomposition texture schematic diagram during upper surface of inner ring；
The anti-abrasion structure that Fig. 5 shows in Fig. 1 is positioned only at the sectional view during upper surface of inner ring；
Fig. 6 shows enlarged diagram at the A of the inner ring in Fig. 5；
Fig. 7 shows the inner ring of the embodiment two of the pump assembly according to the present invention and the partial cutaway after anti-abrasion structure assembling
View；
Fig. 8 shows that the anti-abrasion structure of the embodiment three of the pump assembly according to the present invention is arranged on the upper and lower end of inner ring
Sectional view during face；
Fig. 9 shows that the anti-abrasion structure of the embodiment three of the pump assembly according to the present invention is positioned only at the upper surface of inner ring
When sectional view；
Figure 10 shows enlarged diagram at the B of the inner ring in Fig. 9；
Figure 11 shows the inner ring of the example IV of the pump assembly according to the present invention and the part after anti-abrasion structure assembling
Sectional view；
Figure 12 shows the elastic component front view of the embodiment five of the pump assembly according to the present invention；
Figure 13 shows the inner ring of the embodiment five of the pump assembly according to the present invention and the part after anti-abrasion structure assembling
Sectional view；
Figure 14 shows that the anti-abrasion structure of the embodiment six of the pump assembly according to the present invention is positioned only at the upper end of inner ring
Decomposition texture schematic diagram during face；
Figure 15 shows the inner ring in Figure 14 and the partial sectional view after anti-abrasion structure assembling；
Figure 16 shows the sectional view of the cylinder of the pump assembly in Fig. 1；And
Figure 17 shows the sectional view of the embodiment of the compressor according to the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
13rd, upper flange；14th, lower flange；20th, bearing-type cylinder；21st, rolling element accommodating chamber；24th, outer ring；25th, inner ring；30、
Rotating shaft；31st, long axle portion；32nd, rotor portions；33rd, short axle portion；40th, slide plate；50th, knockout part；60th, housing unit；70th, motor
Component；80th, pump assembly；90th, cover assembly；100th, lower cover and installing plate；120th, anti-abrasion structure；121st, bulge-structure；130、
Oil pump；141st, limited ring groove；142nd, positive stop lug boss；150th, axial gap；160th, elastic component.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is pointed out that unless otherwise specified, all technologies used in this application and scientific terminology has and the application
The identical meanings that person of an ordinary skill in the technical field is generally understood that.
In the present invention, in the case where not making opposite explanation, the noun of locality used is typically directed to accompanying drawing as " upper and lower "
For shown direction, or on vertical, vertical or gravity direction；Similarly, for ease of understanding and retouch
State, " left and right " is typically for shown in the drawings left and right；" inside and outside " refers to the inside and outside of the profile relative to each part in itself,
But the above-mentioned noun of locality is not intended to limit the invention.
The reliability of pump assembly is caused to reduce in order to solve the problems, such as that abrasion easily occurs for the bearing-type cylinder of pump assembly,
This application provides a kind of pump assembly and there is its compressor.
Embodiment one
As shown in Figures 1 to 6, pump assembly includes structural member, bearing-type cylinder 20 and at least one anti-abrasion structure 120.
Wherein, structural member is two.Bearing-type cylinder 20 is arranged between two structural members, and bearing-type cylinder 20 includes outer ring 24 and energy
Enough inner rings 25 rotated relative to outer ring 24.At least one anti-abrasion structure 120 is arranged at least one towards structure of inner ring 25
On the end face of part, to reduce the friction between bearing-type cylinder 20 and structural member.
Anti-abrasion structure 120 is arranged on the end face towards structural member of inner ring 25 so that the inner ring 25 of bearing-type cylinder 20
Friction will not be in contact between structural member.
In pump assembly running, inner ring 25 can rotate relative to outer ring 24, though inner ring 25 relative to
The run-off the straight of outer ring 24, the anti-abrasion structure 120 being arranged on inner ring 25 directly contact with structural member, and then prevent inner ring 25 and knot
Directly contact friction occurs for component, avoids the two from being worn caused by mutual rubbing action.With inner ring 25 and structure in the prior art
Part directly contacts friction and compared, and the pump assembly in the present embodiment can prevent inner ring 25 and structural member from wearing, and extends knot
The service life of component and bearing-type cylinder 20, and then the functional reliability of pump assembly is improved, lift the performance of pump assembly.
In the present embodiment, can by being in close contact between the bearing-type cylinder 20 of anti-abrasion structure 120 and structural member
Avoid that coolant leakage occurs between the inner ring 25 of bearing-type cylinder 20 and structural member.Meanwhile the above-mentioned setting energy of anti-abrasion structure 120
The accurate to dimension of the axial direction of inner ring 25 is enough reduced, and then reduces the processing cost of bearing-type cylinder 20.
As shown in figure 1, rolling element accommodating chamber 21, some or all of anti-abrasion structure are formed between inner ring 25 and outer ring 24
There is axial gap 150, the high pressure heat exchange medium in rolling element accommodating chamber 21 can enter axial gap between 120 and inner ring 25
150, so that anti-abrasion structure 120 is jacked up and is bonded prior to inner ring 25 with structural member.So, in inner ring 25 relative to outer ring 24
In rotation process, the contact that the direct contact between inner ring 25 and structural member is converted between anti-abrasion structure 120 and structural member rubs
Wipe, because anti-abrasion structure 120 has less coefficient of friction, and Wear vesistance is preferable, and then reduces inner ring 25 and structural member
Frictional force between (upper flange 13 and lower flange 14), prevent bearing-type cylinder 20 and upper and lower flange from wearing, and then extend
The service life of pump assembly.Meanwhile above-mentioned setting can be prevented caused by being worn due to bearing-type cylinder 20 and upper and lower flange
The leakage of heat transferring medium or lubricating oil, improve user experience.
Specifically, in pump assembly running, the rolling element accommodating chamber 21 between inner ring 25 and outer ring 24 is always
The mixture of high voltage state refrigerator oil and refrigerant, and the high-pressure mixture can enter to some or all of anti-abrasion structure 120
In the axial gap 150 formed between inner ring 25 so that under back pressure effect of the anti-abrasion structure 120 in axial gap 150,
It can preferably be bonded close to the end face of structural member with structural member.Meanwhile above-mentioned setting can prevent inner ring 25 and structural member
Directly contact or reduce the contact area of inner ring 25 and structural member, directly connect with structural member with inner ring 25 in the prior art
Touch and compare, because anti-abrasion structure 120 has less coefficient of friction so that the frictional force between structural member and anti-abrasion structure 120
Smaller, then the abrasion of structural member and bearing-type cylinder 20 is less, and then extends the service life of pump assembly.
Alternatively, structural member is upper flange 13 and lower flange 14.As depicted in figs. 1 and 2, in the present embodiment, two knots
Component is respectively upper flange 13 and lower flange 14, i.e. bearing-type cylinder 20 is arranged between upper flange 13 and lower flange 14, anti-attrition
Structure 120 is arranged on the inner ring 25 of bearing-type cylinder 20, to prevent from contacting between inner ring 25 and upper flange 13 and lower flange 14
Friction so that the direct contact between inner ring 25 and upper flange 13 and lower flange 14 is converted into anti-abrasion structure 120 and upper flange 13
Direct contact between lower flange 14, because anti-abrasion structure 120 has good antifriction effect, reduce inner ring 25 and upper method
Frictional force between orchid 13 and lower flange 14, and then extend the service life of upper flange 13, lower flange 14 and bearing-type cylinder 20,
Improve the functional reliability of pump assembly.
As shown in figure 5, anti-abrasion structure is positioned only between upper flange 13 and bearing-type cylinder 20.Above-mentioned setting can prevent
Friction is contacted between the upper end of inner ring 25 and upper flange 13, and then extends the service life of upper flange 13 and bearing-type cylinder 20,
The functional reliability of pump assembly is improved, lifts the performance of pump assembly.
In the accompanying drawings in unshowned other embodiment, anti-abrasion structure be positioned only at lower flange and bearing-type cylinder it
Between.Above-mentioned setting can prevent from contacting friction between the lower end of inner ring and lower flange, and then extend lower flange and bearing-type cylinder
Service life, improve the functional reliability of pump assembly, lift the performance of pump assembly.
In the present embodiment, limiting section, and anti-attrition knot are provided with least one end face towards structural member of inner ring 25
Surface of the structure 120 away from the side of rolling element accommodating chamber 21 is interference fitted with limiting section.So, inner ring 25 and anti-abrasion structure 120 are logical
Cross limiting section to be interference fitted, and then prevent from leading into the high voltage state refrigerator oil of axial gap 150 and the mixture of refrigerant
The axial gap 150 is crossed to enter to the inner chamber of cylinder and influence the normal operation of bearing-type cylinder 20.
Specifically, be provided with limiting section on the upper surface and lower surface of inner ring 25, and two anti-abrasion structures 120 with limit
Position portion is interference fitted, and the mixture of the high voltage state refrigerator oil and refrigerant that enter to axial gap 150 can be to anti-abrasion structure 120
High-pressure forces are provided, it is bonded setting with the end face of upper and lower flange.So, on the one hand above-mentioned setting can reduce bearing
Frictional force between formula cylinder 20 and upper flange 13 and lower flange 14, additionally it is possible to prevent the mixing of high voltage state refrigerator oil and refrigerant
Thing enters to the inner chamber of bearing-type cylinder 20 by axial gap 150.The structure of said structure is simple, easily assembling.
As shown in fig. 6, limiting section is limited ring groove 141, anti-abrasion structure 120 is cyclic structure, and the internal diameter of cyclic structure is small
In the internal diameter of limited ring groove 141, and the external diameter of cyclic structure is less than or equal to the external diameter of limited ring groove 141, and part or complete
There is axial gap 150 between the end face of the remote structural member of portion's anti-abrasion structure 120 and the bottom land of limited ring groove 141.So, it is above-mentioned
The surface for the remote side of rolling element accommodating chamber 21 that can not only ensure anti-abrasion structure 120 is set closely to match somebody with somebody with limited ring groove 141
Close, it is ensured that the mixture of high voltage state refrigerator oil and refrigerant can enter to the end face of the remote structural member of anti-abrasion structure 120
Impetus is carried out to anti-abrasion structure 120 between the bottom land of limited ring groove 141.The structure of said structure is simple, be easily worked,
Realize.
Alternatively, the cross-sectional area of limited ring groove 141 is more than or equal to the cross-sectional area of anti-abrasion structure 120.So, it is above-mentioned
Setting can ensure that the mixture of high voltage state refrigerator oil and refrigerant can be entered in axial gap 150, with to anti-abrasion structure
120 act power.
Alternatively, the cross section of anti-abrasion structure 120 is rectangular configuration.Above-mentioned setting causes the structure letter of anti-abrasion structure 120
It is single, it is easily worked.
In the present embodiment, anti-abrasion structure 120 is made up of fluororesin.Fluororesin has the spies such as Wear vesistance is good, cost is low
Point, then the processing cost of pump assembly can be reduced using anti-abrasion structure made of fluororesin 120.
Normally, inner ring 25 is made up of bearing steel through Overheating Treatment so that the case hardness of inner ring 25 is big, wearability
It is good.Upper flange 13 and lower flange 14 are made of cast iron.So, anti-abrasion structure 120 is set on upper flange 13 and lower flange 14, made
The direct contact friction of inner ring 25 and upper and lower flange is converted into friction between inner ring 25 and anti-abrasion structure 120.Due to anti-attrition
Structure 120 has less coefficient of friction, hence in so that the abrasion between inner ring 25 and anti-abrasion structure 120 reduces, and then reduces
The abrasion of inner ring 25, upper flange 13 and lower flange 14, increases the service life.
Alternatively, anti-abrasion structure 120 is made up of polytetrafluoroethylene (PTFE) (PTFE).Polytetrafluoroethylene (PTFE) (PTFE) have high temperature resistant,
The advantages such as coefficient of friction is low and processing cost is low, using anti-abrasion structure 120 made of polytetrafluoroethylene (PTFE) (PTFE) not only have compared with
Good antifriction effect, the processing cost of anti-abrasion structure 120 can also be reduced.
Alternatively, anti-abrasion structure 120 is that graphite or molybdenum disulfide or copper powder or threadiness enhancing are added in polytetrafluoroethylene (PTFE)
Made of one or more in material.Specifically, graphite, molybdenum disulfide, copper powder and fibrous reinforcements be respectively provided with compared with
Good lubricity, the coefficient of friction for adding the anti-abrasion structure 120 after above-mentioned substance further reduce, so reduce inner ring 25 with
Frictional dissipation between upper and lower flange, extend the service life of pump assembly, while reduce due to vibrating, making an uproar caused by friction
Sound, improve user experience.
It should be noted that anti-abrasion structure 120 uses material not limited to this, as long as there is preferable antifriction effect, rub
It is small to wipe coefficient.
Compared with being not provided with anti-abrasion structure 120 in the prior art, the axial dimension of the inner ring 25 in the present embodiment is smaller, drop
Low requirement on machining accuracy, even if the run-off the straight in operation process of inner ring 25, the external diameter position of inner ring 25 also will not with it is upper and lower
Flange contact, the axial seal of bearing-type cylinder 20 are realized mainly by anti-abrasion structure 120.Meanwhile above-mentioned setting is further protected
Card inner ring 25 will not interfere with upper and lower flange, rub, and reduce processing cost, lift the antifriction effect of anti-abrasion structure 120.
As shown in figure 17, present invention also provides a kind of compressor, including above-mentioned pump assembly.Alternatively, compressor
For sliding-vane compressor.The compressor includes knockout part 50, housing unit 60, electric machine assembly 70, pump assembly 80, upper lid
Component 90 and lower cover and installing plate 100.Wherein, knockout part 50 is arranged on the outside of housing unit 60, and cover assembly 90 fills
The upper end of housing unit 60 is fitted over, lower cover and installing plate 100 are assemblied in the lower end of housing unit 60, electric machine assembly 70 and pump housing group
Part 80 is respectively positioned on the inside of housing unit 60, and electric machine assembly 70 is arranged on the top of pump assembly 80.The pump housing group of compressor
Part 80 includes above-mentioned upper flange 13, lower flange 14, bearing-type cylinder 20, rotating shaft 30, anti-abrasion structure 120 and oil pump 130.
Specifically, rotating shaft 30 includes long axle portion 31, rotor portions 32 and short axle portion 33.Wherein, upper flange 13 is set in major axis
In portion 31, lower flange 14 is set in short axle portion 33, and rotor portions 32 are arranged in the inner chamber of bearing-type cylinder 20.In rotor portions 32
Vane slot is offered, slide plate 40 is arranged in vane slot.As shown in figure 16, under the ideal operation state of compressor, axial direction side
The center line of upward bearing-type cylinder 20 overlaps with the center line of inner ring 25.But in the work of compressor actual motion, by slide plate
The pressure of each cavity of 40 segmentations is different, and the rolling element accommodating chamber 21 between inner ring 25 and outer ring 24 is always high voltage state
The mixture of refrigerator oil and refrigerant.Meanwhile bearing-type cylinder 20 itself has clearance, therefore inner ring 25 is in the mistake of high-speed rotation
Can run-off the straight in journey.After the run-off the straight of inner ring 25, the anti-abrasion structure 120 and the upper and lower flange that are set on inner ring 25 occur directly
Contact, and then reduce the frictional dissipation between inner ring 25 and upper and lower flange.Because anti-abrasion structure 120 has preferable anti-attrition
Effect, and then the energy loss of compressor can be reduced, improve the service behaviour of compressor.
Specifically, as shown in figure 16, under the ideal operation state of compressor, in axial direction upper bearing (metal) formula cylinder 20
Heart line overlaps with the center line of inner ring 25.But in the work of compressor actual motion, the pressure for each cavity split by slide plate 40
It is different, and the inner chamber between inner ring 25 and outer ring 24 is always high voltage state refrigerator oil and refrigerant composition.Meanwhile bearing
Itself there is clearance in formula cylinder 20, therefore inner ring 25 can run-off the straight during high-speed rotation.In the run-off the straight of inner ring 25
Afterwards, the anti-abrasion structure 120 set on inner ring 25 can carry out contact friction with upper and lower flange.Due to anti-abrasion structure 120 have compared with
Good antifriction effect, and then the energy loss of compressor can be reduced, improve the service behaviour of compressor.
Alternatively, bearing-type cylinder 20 is ball bearing type cylinder or cylinder roller bearing formula cylinder.
Embodiment two
The pump assembly of embodiment two and the difference of embodiment one are：The structure of anti-abrasion structure 120 is different.
As shown in fig. 7, it is provided with bulge-structure on the end face of the remote structural member of some or all of anti-abrasion structure 120
121, and the end face of the remote structural member of bulge-structure 121 contacts with the bottom land of limited ring groove 141.So, in anti-abrasion structure 120
During being assembled with limited ring groove 141, bulge-structure 121 can abut with the bottom land of limited ring groove 141, and then will subtract
Mill structure 120 is assembled in position, i.e., when pump assembly is not keyed up or in high voltage state refrigerator oil and refrigerant
In the presence of mixture, anti-abrasion structure 120 can be bonded setting with upper and lower flange.
Specifically, the end face of the remote structural member of bulge-structure 121 contacts with the bottom land of limited ring groove 141 so that anti-attrition
Axial gap 150, high voltage state refrigerator are formed between the end face of the remote structural member of structure 120 and the bottom land of limited ring groove 141
The mixture of oil and refrigerant can enter to the axial gap 150 so that anti-abrasion structure 120 to be jacked up.
As shown in fig. 7, bulge-structure 121 is arranged on the side that setting is bonded with inner ring 25 of anti-abrasion structure 120.One side
Face, above-mentioned setting make it that the mixture of high voltage state refrigerator oil and refrigerant is bigger to the joint force of anti-abrasion structure 120, and point to
Upper flange 13 or lower flange 14 so that anti-abrasion structure 120 is more bonded setting with upper and lower flange；On the other hand, said structure
Set and cause sealing property between anti-abrasion structure 120 and limited ring groove 141 more preferably, prevent high voltage state refrigerator oil and refrigerant
Mixture enters inner chamber and influences the normal operation of bearing-type cylinder 20.
Alternatively, bulge-structure 121 is loop configuration.The structure of said structure is simple, is easily worked.
It should be noted that the setting not limited to this of bulge-structure 121.Alternatively, bulge-structure 121 can also not connected
Continuous segmental arc, as long as positioning action can be played.
Embodiment three
The pump assembly of embodiment three and the difference of embodiment one are：The structure of limiting section is different.
As shown in Fig. 8 to Figure 10, limiting section is positive stop lug boss 142, and anti-abrasion structure 120 is cyclic structure, cyclic structure set
Be located on positive stop lug boss 142 and the two be interference fitted, the end face of the remote structural member of some or all of anti-abrasion structure 120 with it is interior
There is axial gap 150 between the end face towards structural member of circle 25.So, above-mentioned setting can not only ensure anti-abrasion structure
The surface of the 120 remote side of rolling element accommodating chamber 21 is fitted close with limited ring groove 141, it is ensured that high voltage state refrigerator oil and
The mixture of refrigerant can enter to the end face of the remote structural member of anti-abrasion structure 120 and the end face towards structural member of inner ring 25
Between to anti-abrasion structure 120 carry out impetus.The structure of said structure is simple, is easily worked, realizes.
Example IV
The pump assembly of example IV and the difference of embodiment three are：The structure of anti-abrasion structure 120 is different.
As shown in figure 11, there is bulge-structure on the end face of the remote structural member of some or all of anti-abrasion structure 120
121, and the end face of the remote structural member of bulge-structure 121 and the end contact towards structural member of inner ring 25.So, in anti-attrition
During structure 120 is assembled with positive stop lug boss 142, bulge-structure 121 can be with the end towards structural member of inner ring 25
Face is abutted, and then anti-abrasion structure 120 is assembled in position, i.e., cold when pump assembly is not keyed up or in high voltage state
Freeze in the presence of the mixture of machine oil and refrigerant, anti-abrasion structure 120 can be bonded setting with upper and lower flange.
Specifically, the end face of the remote structural member of bulge-structure 121 and the end contact towards structural member of inner ring 25, make
Anti-abrasion structure 120 the end face of remote structural member and the end face towards structural member of inner ring 25 between formation axial gap 150,
The mixture of high voltage state refrigerator oil and refrigerant can enter to the axial gap 150 so that anti-abrasion structure 120 to be jacked up.
Embodiment five
The pump assembly of embodiment five and the difference of embodiment one are：The composition structure of pump assembly is different.
In the present embodiment, as shown in Figure 12 and Figure 13, pump assembly also includes corrugated elastic component 160, corrugated or
Person's polyline shaped elastic component 160 is arranged between limited ring groove 141 and anti-abrasion structure 120 and can be with inner ring 25 towards structural member
End contact.Specifically, elastic component 160 is arranged on the bottom land of limited ring groove 141 and the remote structural member of anti-abrasion structure 120
Between end face, it can be abutted at the crest and trough of corrugated elastic component 160 with the bottom land of limited ring groove 141, and then by anti-attrition
Structure 120 is assembled in position, i.e., when pump assembly is not keyed up or in the mixed of high voltage state refrigerator oil and refrigerant
In the presence of compound, anti-abrasion structure 120 can be bonded setting with upper and lower flange.
It should be noted that the planform not limited to this of elastic component 160, as long as so that anti-abrasion structure 120 and spacing ring
It can be abutted between the bottom land of groove 141.Alternatively, elastic component 160 is in polyline shaped.The bending part of polyline shaped elastic component 160
Abutted with the bottom land of limited ring groove 141.
As shown in figure 12, corrugated elastic component 160 is waveform reed.Waveform reed is standard component, reduces pump assembly
Processing cost.
Alternatively, corrugated elastic component 160 is made up of stainless steel.Stainless steel material has wear-resisting, anti-attrition and hardness
The advantages that high, the service life of pump assembly can be extended.
Alternatively, elastic component 160 is fold-line-shaped reed.
Embodiment six
The pump assembly of embodiment six and the difference of embodiment three are：The composition structure of pump assembly is different.
In the present embodiment, as shown in Figure 12, Figure 14 and Figure 15, pump assembly also includes the bullet of corrugated or polyline shaped
Property part 160, elastic component 160 are arranged between positive stop lug boss 142 and anti-abrasion structure 120 and can be with inner rings 25 towards structural member
End contact.Specifically, elastic component 160 is arranged on the remote of the end face towards structural member of inner ring 25 and anti-abrasion structure 120
, can be with the end face towards structural member of inner ring 25 at the crest and trough of corrugated elastic component 160 between the end face of structural member
Abut, and then anti-abrasion structure 120 is assembled in position, i.e., freezed when pump assembly is not keyed up or in high voltage state
In the presence of the mixture of machine oil and refrigerant, anti-abrasion structure 120 can be bonded setting with upper and lower flange.
It should be noted that the planform not limited to this of elastic component 160, as long as so that anti-abrasion structure 120 and spacing ring
It can be abutted between the bottom land of groove 141.Alternatively, elastic component 160 is in polyline shaped.The bending part of polyline shaped elastic component 160
Abutted with the bottom land of limited ring groove 141.
As shown in figure 12, elastic component 160 is waveform reed.Waveform reed is standard component, reduces being processed into for pump assembly
This.
Alternatively, elastic component 160 is made up of stainless steel.Stainless steel material has wear-resisting, anti-attrition and hardness height etc. excellent
Point, the service life of pump assembly can be extended.
Alternatively, elastic component 160 is fold-line-shaped reed.
As can be seen from the above description, the above embodiments of the present invention realize following technique effect：
Anti-abrasion structure is arranged on the end face towards structural member of inner ring so that the inner ring of bearing-type cylinder and structural member it
Between will not be in contact friction.
In pump assembly running, inner ring can rotate relative to outer ring, even if inner ring is sent out relative to outer ring
Raw to tilt, the anti-abrasion structure being arranged on inner ring directly contacts with structural member, and then prevents inner ring from occurring directly to connect with structural member
Wiping is touched, avoids the two from being worn caused by mutual rubbing action.Friction phase is directly contacted with structural member with inner ring in the prior art
Than the pump assembly in the application can prevent inner ring and structural member from wearing, and extending structure part and bearing-type cylinder make
With the life-span, and then the functional reliability of pump assembly is improved, lift the performance of pump assembly.
Obviously, above-mentioned described embodiment only a part of embodiment of the present invention, rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained all under the premise of creative work is not made
Other embodiment, it should all belong to the scope of protection of the invention.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, work, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so that presently filed embodiment described herein can be with except illustrating herein
Or the order beyond those of description is implemented.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (15)
- A kind of 1. pump assembly, it is characterised in that including：Structural member, the structural member are two；Bearing-type cylinder (20), be arranged between two structural members, the bearing-type cylinder (20) include outer ring (24) and The inner ring (25) that can be rotated relative to the outer ring (24)；At least one anti-abrasion structure (120), at least one towards on the end face of the structural member of the inner ring (25) is arranged on, To reduce the friction between the bearing-type cylinder (20) and the structural member.
- 2. pump assembly according to claim 1, it is characterised in that shape between the inner ring (25) and the outer ring (24) Into rolling element accommodating chamber (21), between axial direction between some or all of anti-abrasion structure (120) and the inner ring (25) Gap (150), the high pressure heat exchange medium in the rolling element accommodating chamber (21) can enter the axial gap (150), so that institute Anti-abrasion structure (120) is stated to be jacked up and be bonded with the structural member prior to the inner ring (25).
- 3. pump assembly according to claim 1, it is characterised in that the structural member is upper flange (13) and lower flange (14)。
- 4. pump assembly according to claim 2, it is characterised in that the inner ring (25) it is at least one towards the knot Limiting section, and table of the anti-abrasion structure (120) away from rolling element accommodating chamber (21) side are provided with the end face of component Face is interference fitted with the limiting section.
- 5. pump assembly according to claim 4, it is characterised in that the limiting section is limited ring groove (141), described to subtract Mill structure (120) is cyclic structure, and the internal diameter of the cyclic structure is less than the internal diameter of the limited ring groove (141), and the ring The external diameter of shape structure is less than or equal to the external diameter of the limited ring groove (141), and some or all of anti-abrasion structure (120) The end face of the remote structural member and the bottom land of the limited ring groove (141) between there is the axial gap (150).
- 6. pump assembly according to claim 4, it is characterised in that the limiting section is positive stop lug boss (142), described to subtract Mill structure (120) is cyclic structure, and the cyclic structure is set on the positive stop lug boss (142) and the two is interference fitted, portion Point or whole direction structures of the end face of remote the structural member of the anti-abrasion structure (120) and the inner ring (25) There is the axial gap (150) between the end face of part.
- 7. pump assembly according to claim 5, it is characterised in that some or all of anti-abrasion structure (120) Bulge-structure (121), and the remote structural member of the bulge-structure (121) are provided with end face away from the structural member End face contacted with the bottom land of the limited ring groove (141).
- 8. pump assembly according to claim 6, it is characterised in that some or all of anti-abrasion structure (120) There is bulge-structure (121) on end face away from the structural member, and the remote structural member of the bulge-structure (121) End face and the end contact of the direction structural member of the inner ring (25).
- 9. the pump assembly according to claim 7 or 8, it is characterised in that the bulge-structure (121) is arranged on described subtract Mill structure (120) is bonded the side set with the inner ring (25).
- 10. the pump assembly according to claim 5 or 6, it is characterised in that the pump assembly also include corrugated or The elastic component (160) of polyline shaped, the elastic component (160) be arranged between the limiting section and the anti-abrasion structure (120) and Can be with the end contact of the direction structural member of the inner ring (25).
- 11. pump assembly according to claim 10, it is characterised in that the elastic component (160) be waveform reed or Fold-line-shaped reed.
- 12. pump assembly according to claim 1, it is characterised in that the anti-abrasion structure (120) is made up of fluororesin.
- 13. pump assembly according to claim 12, it is characterised in that the anti-abrasion structure (120) is by polytetrafluoroethylene (PTFE) It is made.
- 14. pump assembly according to claim 13, it is characterised in that the anti-abrasion structure (120) is polytetrafluoroethylene (PTFE) Made of one or more in middle addition graphite or molybdenum disulfide or copper powder or fibrous reinforcements.
- 15. a kind of compressor, it is characterised in that including the pump assembly any one of claim 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710912355.1A CN107514365B (en) | 2017-09-29 | 2017-09-29 | Pump body assembly and compressor with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710912355.1A CN107514365B (en) | 2017-09-29 | 2017-09-29 | Pump body assembly and compressor with same |
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| CN107514365A true CN107514365A (en) | 2017-12-26 |
| CN107514365B CN107514365B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710912355.1A Active CN107514365B (en) | 2017-09-29 | 2017-09-29 | Pump body assembly and compressor with same |
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| JPH0452588U (en) * | 1990-09-11 | 1992-05-06 | ||
| JPH08170595A (en) * | 1994-12-16 | 1996-07-02 | Matsushita Refrig Co Ltd | Hermetic compressor |
| WO2004040141A1 (en) * | 2002-10-31 | 2004-05-13 | Lg Electronics Inc. | Hermetic compressor having a z-plate |
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| CN106438368A (en) * | 2016-11-07 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary shaft, compressor and air conditioner |
| CN207349088U (en) * | 2017-09-29 | 2018-05-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly and there is its compressor |
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2017
- 2017-09-29 CN CN201710912355.1A patent/CN107514365B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61118586A (en) * | 1985-11-18 | 1986-06-05 | Hitachi Ltd | Rotary type compressor |
| JPH0452588U (en) * | 1990-09-11 | 1992-05-06 | ||
| JPH08170595A (en) * | 1994-12-16 | 1996-07-02 | Matsushita Refrig Co Ltd | Hermetic compressor |
| WO2004040141A1 (en) * | 2002-10-31 | 2004-05-13 | Lg Electronics Inc. | Hermetic compressor having a z-plate |
| KR20120021573A (en) * | 2010-08-09 | 2012-03-09 | 아스펜 컴프레서 엘엘씨. | Compact rotary vane compressor for low rotation-resistance |
| CN102400916A (en) * | 2010-09-07 | 2012-04-04 | 广东美芝制冷设备有限公司 | Rotary type compressor |
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| Publication number | Publication date |
|---|---|
| CN107514365B (en) | 2024-02-27 |
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