CN107642381A - A kind of rolling-rotor expanding machine or compressor - Google Patents
A kind of rolling-rotor expanding machine or compressor Download PDFInfo
- Publication number
- CN107642381A CN107642381A CN201710886383.0A CN201710886383A CN107642381A CN 107642381 A CN107642381 A CN 107642381A CN 201710886383 A CN201710886383 A CN 201710886383A CN 107642381 A CN107642381 A CN 107642381A
- Authority
- CN
- China
- Prior art keywords
- slide plate
- rotor
- compressor
- clearance
- rolling
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 23
- 239000010439 graphite Substances 0.000 claims abstract description 23
- 238000007654 immersion Methods 0.000 claims abstract description 23
- 239000012530 fluid Substances 0.000 claims description 19
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 claims description 2
- 210000001520 comb Anatomy 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910001120 nichrome Inorganic materials 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 16
- 238000005299 abrasion Methods 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 35
- 239000010687 lubricating oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of rolling-rotor expanding machine or compressor, it includes cylinder block（1）With the rotor for being eccentrically mounted at cylinder inner cavity（3）, cylinder block（1）It is provided with skateboards slot（2）, cylinder block outside corresponds to skateboards slot（2）Position is provided with oil groove（10）, skateboards slot（2）It is interior through there is forward and backward the first slide plate arranged side by side（13）With the second slide plate（15）, the top of slide plate extends into oil groove（10）It is interior, the spring for pushing slide plate is respectively fixed with the top of each slide plate（12）, the first slide plate（13）With the second slide plate（15）Between accompany oil immersion graphite cake（14）, the first slide plate（13）, the second slide plate（15）With oil immersion graphite cake（14）Base and rotor（3）External cylindrical surface contacts.The present invention has advantages below：Improve the sealing property between slide plate and rotor outer circle cylinder；Oil immersion graphite cake implements micro- oil lubrication to rotor surface；Reduce the vibration of operation；Reduce rotor abrasion.
Description
Technical field
The invention belongs to expanding machine or Compressor Technology field, and in particular to a kind of rolling-rotor expanding machine or compressor.
Background technology
The theory structure of rolling-rotor expanding machine or compressor is as shown in figure 1, it includes turn of cylinder block 1 and cylinder inner cavity
Son 3, the geometric center O of rotor 31When deviateing cylinder axis O, and surrounding cylinder axis O rotations, the convex top line A in the outside cylinder of rotor 3
（Rotor outer circle post is in rotor geometric center O1With the bus away from O points on cylinder axis O lines）Holding connects with cylinder block inwall
Touch.Under the action of the spring, the base of slide plate 11 contacts slide plate 11 in cylinder block upper slide groove 2 with the external cylindrical surface of rotor 3, forms
One sealing lines B, the space between rotor outer circle face and cylinder block inwall is divided into and flows into chamber V0With discharge chamber V1.If stream
Enter chamber V0Connect low-pressure fluid, discharge chamber V1Then it is compressor operating state for high-pressure fluid；, whereas if flow into chamber V0Connection
High-pressure fluid, discharge chamber V1Then it is expanding machine working condition for low-pressure fluid.
Due to flowing into chamber V0With discharging chamber V1Larger pressure difference be present, and flow into chamber V0With discharging chamber V1Between lean on slide plate 11
Top line A convex with rotor 3 isolates, and high-pressure fluid leakage problem be present on the seal line B on the base of slide plate 11, to reduce high-pressure fluid
Leakage, generally use increase spring 16 are applied to the pressure on slide plate 11.After the increase of slide plate pressure, on the one hand add outside rotor
The wear extent on the face of cylinder, cause contact performance between the convex top line A of rotor and cylinder inner wall to be deteriorated, produce more serious leakage；Separately
On the one hand, rotated around cylinder axis O, the increase of slide plate pressure due to rotor eccentricity, cause vibration during operation to increase.It is in addition, sliding
After the increase of plate pressure, caused power attenuation increase on rotor（This loss is called the loss of axle shaft power）, reduce rolling and turn
The energy conversion efficiency of sub- expanding machine or compressor.
The content of the invention
The problem of existing for prior art, it is swollen that the technical problems to be solved by the invention are just to provide a kind of rolling-rotor
Swollen machine or compressor, it can strengthen sealing property between slide plate base and rotor outer circle cylinder, can be reduced by three seals line
Per the pressure between a piece of slide plate and rotor outer circle cylinder, so as to reduce the abrasion to rotor.
The technical problems to be solved by the invention are realized by such technical scheme, and it includes cylinder block and partially
To feel at ease mounted in the rotor of cylinder inner cavity, cylinder block is provided with skateboards slot, and cylinder block outside is provided with oil groove corresponding to slide plate groove location,
Running through in skateboards slot has forward and backward first slide plate and the second slide plate arranged side by side, and the top of the first slide plate and the second slide plate extends into oil
In groove, the spring for pushing slide plate is respectively fixed with the top of each slide plate, oil immersion graphite is accompanied between the first slide plate and the second slide plate
Plate, the base of the first slide plate, the second slide plate and oil immersion graphite cake contact with rotor outer circle cylinder.
Because the present invention is using forward and backward the first slide plate and the second slide plate side by side, two pieces of slide plate bases and rotor outer circle post
Face contacts to form forward and backward two sealing lines, forms two-wire sealing；Oil immersion graphite is accompanied between the first slide plate and the second slide plate simultaneously
Plate, one layer of oil film seal is added again between oil immersion graphite cake and rotor outer circle cylinder, the lubricating oil in oil groove passes through oil immersion stone
Black plate is applied on the rotor of rotation in a manner of denier, is reduced frictional force, is added sealing property again；, therefore, two layers
Slide plate seal and oil film auxiliary seal slide plate bottom edge sealing performance is greatly improved, on this basis, reduce the first slide plate and
The spring pressure of second slide plate can equally meet the seal request of rolling-rotor expanding machine or compressor.So skill of the invention
Art effect is：Add sealing property between slide plate base and rotor outer circle cylinder, reduce slide plate and rotor outer circle cylinder it
Between pressure, so as to reduce the abrasion to rotor, and reduce shaft power loss.
Brief description of the drawings
The brief description of the drawings of the present invention is as follows：
Fig. 1 is the principle assumption diagram of background technology；
Fig. 2 is the principle assumption diagram of the present invention；
Fig. 3 is the structural representation of the present invention；
Fig. 4 is the structure chart of oil immersion graphite cake；
Clearance Vs of the Fig. 5 between cylinder block and rotor2Schematic diagram.
In figure：1. cylinder block；2. skateboards slot；3. rotor；10. oil groove；11. slide plate；12. spring；13. the first slide plate；
14. oil immersion graphite cake；15. the second slide plate；16. aperture；17. lose heart through hole；18. exhaust pipe；19. clearance exhaust connects
Adapter；20. clearance is vented manifold trunk；21. clearance gas comb.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figures 2 and 3, the present invention includes cylinder block 1 and is eccentrically mounted at the rotor 3 of cylinder inner cavity, is set in cylinder block 1
Have a skateboards slot 2, the position of skateboards slot 2 corresponded to outside cylinder block and is provided with oil groove 10, run through in skateboards slot 2 have it is forward and backward side by side the
The top of one slide plate 13 and the second slide plate 15, the first slide plate 13 and the second slide plate 15 is extended into oil groove 10, at the top of each slide plate
Be respectively fixed with the spring 12 for pushing slide plate, and the pressure adjustable of each spring 12, the first slide plate 13 and the second slide plate 15 it
Between accompany oil immersion graphite cake 14, the first slide plate 13, the base of the second slide plate 15 and oil immersion graphite cake 14 and the external cylindrical surface of rotor 3 connect
Touch.Lubricating oil is housed in the oil groove 10.
First slide plate 13 and the second slide plate 15 are applied with the base that the external cylindrical surface of rotor 3 contacts by the way of plasma spraying
NiCr alloy-based gradient self-lubricating materials are covered, reduce the abrasion to rotor, it is timely after the coat on the slide plate edge of a knife has been ground
Re-start plasma coated processing or change.
As shown in Fig. 2 present invention use forward and backward first slide plate 13 and the second slide plate 15 arranged side by side, the base of the first slide plate 13,
The base of second slide plate 15 contacts to form forward and backward two sealing lines with rotor outer circle cylinder, forms two-wire sealing, adds sealing
Energy；There is oil immersion graphite cake 14 between two pieces of slide plates simultaneously, added again between the base of oil immersion graphite cake 14 and rotor outer circle cylinder
Slide plate bottom edge sealing performance is greatly improved in one layer of oil film seal, three layers of combination sealing.Thus overcome prior art according to
A series of problems caused by sealing is realized by increase slide plate pressure, under conditions of seal request is met, the first cunning can be reduced
Pressure between the slide plate 15 of plate 13 and second and rotor outer circle cylinder, the present invention have advantages below：
1st, the sealing property between slide plate and rotor outer circle cylinder is improved；
2nd, due to provided with oil immersion graphite cake, micro- oil lubrication being implemented to rotor surface, lubricating oil is coated in through oil immersion graphite cake to be turned
Sub- external cylindrical surface, one layer of oil film is formd, on the one hand forms oil film seal in oil immersion graphite cake bottom, enhance sealing property,
On the other hand the slip lubrication between rotor and cylinder inner wall can be realized；
3rd, because rotor eccentricity is arranged in cylinder, the stationarity that rotor rotates is poor, if slide plate is applied to rotor outer circle cylinder
Between pressure it is larger, then be further exacerbated by the imbalance of rotor, cause operation serious vibration.The present invention can reduce slide plate
With the pressure between rotor outer circle cylinder, while the contact area of slide plate and rotor is added, advantageously reduce the vibration of equipment；
4th, the pressure that slide plate is applied between rotor outer circle cylinder reduces, while rotor surface has micro- oil lubrication, reduces and turns
Son abrasion.
As shown in figure 4, having laid multiple apertures 16 in the plate face of oil immersion graphite cake 14, aperture 16 is used for filling lubricating oil,
The lubricating oil contributed in oil groove penetrates into the base of oil immersion graphite cake 14, realizes that oil immersion graphite cake 14 is micro- in rotor outer circle cylinder
Amount coating lubricating oil.The diameter selection 1mm to 2mm of aperture 16, spacing between aperture is according to being actually needed setting.Lubricating oil from
Oil groove 10 slowly penetrates into the surface of rotor 3, and in the plate face of oil immersion graphite cake 14 aperture accumulation area it is bigger, permeability is faster；
It is on the contrary then slower, realize the micro- oil operation of rotor outer circle cylinder.
As shown in figure 5, after the convex top line A of rotor inswept exhaust outlets, formed between convex the top line A and slide plate 11 of rotor
Closing space be referred to as clearance, use V2Represent.Because clearance space is filled with fluid, rotor 3 is rotated further, then the fluid is remaining
The closing space of gap is compressed, and causes energy loss.In order to exclude clearance V2The fluid of middle closing, present invention employs following skill
Art means：
As shown in Fig. 5 and Fig. 3, close to skateboards slot 2 in cylinder block, and discouraged through hole 17 is provided with towards the side of exhaust outlet, let out
The aperture of vent hole 17 is connected to clearance gas comb 21, and clearance gas comb 21 connects exhaust pipe 18.
Multiple discouraged through holes 17 are provided with cylinder block vertically, it is corresponding to meet multiple clearance gas combs 21, each clearance gas row
Pipe 21 connects clearance exhaust manifold trunk 20, and clearance is vented manifold trunk 20 and connects exhaust pipe 18 through clearance exhaust connection 19.
Due to close to skateboards slot 2 and being provided with discouraged through hole 17 towards exhaust outlet side, as clearance V2When middle fluid is pressurized,
Then outwards excluded by clearance gas comb 21, energy loss caused by avoiding closing space compression fluid, improve expanding machine
Or the efficiency of compressor.
Because the exhaust pipe 18 of compressor exports high-pressure fluid, exhaust pipe 18 is connected by clearance gas comb 21
Inside compressor, then high-pressure fluid can pour in down a chimney the discharge chamber V into compressor1, cause compressor performance to reduce.Therefore, remaining
The check valve for the high-pressure fluid backflow for stopping exhaust pipe 18 is installed, so, when clearance in compressor on gap gas comb 21
Fluid pressure when exceeding exhaust pipe pressure, the fluid of clearance flows into exhaust pipe 18.
As compressor, in the case that cylinder block is provided with multiple discouraged through holes, then in each clearance gas comb 21, or
The check valve for the high-pressure fluid backflow for stopping exhaust pipe 18 is installed in clearance exhaust connection 19.
Claims (7)
1. a kind of rolling-rotor expanding machine or compressor, include cylinder block（1）With the rotor for being eccentrically mounted at cylinder inner cavity
（3）, cylinder block（1）It is provided with skateboards slot（2）, it is characterized in that：Correspond to skateboards slot outside cylinder block（2）Position is provided with oil groove
（10）, skateboards slot（2）It is interior through there is forward and backward the first slide plate arranged side by side（13）With the second slide plate（15）, the first slide plate（13）With
Two slide plates（15）Top extend into oil groove（10）It is interior, the spring for pushing slide plate is respectively fixed with the top of each slide plate（12）, the
One slide plate（13）With the second slide plate（15）Between accompany oil immersion graphite cake（14）, the first slide plate（13）, the second slide plate（15）And oil
Soak graphite cake（14）Base and rotor（3）External cylindrical surface contacts.
2. rolling-rotor expanding machine according to claim 1 or compressor, it is characterized in that：The oil immersion graphite cake（14）'s
Multiple apertures have been laid in plate face（16）.
3. rolling-rotor expanding machine according to claim 1 or 2 or compressor, it is characterized in that：First slide plate（13）With
Two slide plates（15）With rotor（3）The base of external cylindrical surface contact is coated with NiCr alloy-based gradient self-lubricating materials.
4. rolling-rotor expanding machine according to claim 1 or 2 or compressor, it is characterized in that：In cylinder block（1）It is upper close
Skateboards slot（2）, and it is provided with discouraged through hole towards the side of exhaust outlet（17）, the aperture for the through hole that loses heart is connected to clearance gas comb
（21）, clearance gas comb（21）Connect exhaust pipe（18）.
5. rolling-rotor expanding machine according to claim 4 or compressor, it is characterized in that：It is provided with vertically in cylinder block more
Individual discouraged through hole（17）, it is corresponding to connect multiple clearance gas combs（21）, each clearance gas comb（21）Connect clearance exhaust manifold trunk
（20）, clearance exhaust manifold trunk（20）Through clearance exhaust connection（19）Connect exhaust pipe（18）.
6. rolling-rotor expanding machine according to claim 4 or compressor, it is characterized in that：The clearance gas comb of compressor
（21）On stop exhaust pipe is installed（18）High-pressure fluid backflow check valve.
7. rolling-rotor expanding machine according to claim 5 or compressor, it is characterized in that：Each clearance gas row of compressor
Pipe（21）Or clearance exhaust connection（19）On stop exhaust pipe is installed（18）High-pressure fluid backflow check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710886383.0A CN107642381A (en) | 2017-09-27 | 2017-09-27 | A kind of rolling-rotor expanding machine or compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710886383.0A CN107642381A (en) | 2017-09-27 | 2017-09-27 | A kind of rolling-rotor expanding machine or compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107642381A true CN107642381A (en) | 2018-01-30 |
Family
ID=61114031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710886383.0A Pending CN107642381A (en) | 2017-09-27 | 2017-09-27 | A kind of rolling-rotor expanding machine or compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107642381A (en) |
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Application publication date: 20180130 |