CN209430414U - Rotor oil supply structure and helical-lobe compressor - Google Patents
Rotor oil supply structure and helical-lobe compressor Download PDFInfo
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- CN209430414U CN209430414U CN201822253114.3U CN201822253114U CN209430414U CN 209430414 U CN209430414 U CN 209430414U CN 201822253114 U CN201822253114 U CN 201822253114U CN 209430414 U CN209430414 U CN 209430414U
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Abstract
The utility model provides a kind of rotor oil supply structure and helical-lobe compressor.Rotor is rotatably set on bearing block by bearing, is provided with oil supplying hole on the bearing block.Rotor oil supply structure and helical-lobe compressor provided by the utility model, oil groove was provided on rotor, the extreme pressure lubricant to come from oil groove, which is supplied on rotor, crosses oil groove, bearing could be arrived by the second gap again, generate the effect of similar sliding bearing, certain buoyancy is generated to axle journal, a part of bearing radial load can be offset, by the way that the first gap is arranged, enough oil film thicknesses can be generated between the second construction section and bearing block, in the case where guaranteeing that lubricating oil passes through, reduce the rotation load between the second construction section and bearing block, second gap can guarantee that lubricating oil will not be to flowing at compression section, guarantee the abundance of lubricating oil in the first gap, improve compressor reliability, the quantity of bearing of compressor can also be reduced, promote compressor cost performance.
Description
Technical field
The utility model relates to compression device technical field, especially a kind of rotor oil supply structure and helical-lobe compressor.
Background technique
Most of screw type refrigerating compressor bearing is carried out all by the way of oil jet lubrication, mistake of the oil in compressor operation
Play the role of the lubrication and cooling of bearing in journey, male rotor and female rotor are respectively assembled inside bearing block, inside bearing block
Bearing is installed, is played a supportive role to male rotor and female rotor, is oiled respectively by bearing block from the oil groove extreme pressure lubricant that comes
Road carries out feed lubrication to male rotor end bearing and female rotor end, and oil is directly lubricated bearing.The mode of bearing fuel feeding is adopted
With pressure difference fuel feeding or oil pump feed, guarantee that lubricating oil can circulate, although the lubricating oil of high pressure, lubricating oil pair
Rotor is not produce buoyancy, is only lubricated to bearing, and the load of bearing is larger, so that lubricating oil is merely capable of playing lubrication
Effect, performance are single
Utility model content
In order to solve the technical problem that lubricating oil is only capable of playing lubricating action and performance is single, and one kind is provided to bearing
The rotor oil supply structure and helical-lobe compressor of a part of bearing radial load are offset while being lubricated.
A kind of rotor oil supply structure, rotor are rotatably set on bearing block by bearing, are arranged on the bearing block
There is oil supplying hole, oil groove was provided on the rotor, gap runner is formed between the rotor and the bearing block, and described
Oil supplying hole passes sequentially through oil groove and the gap runner excessively and is connected to the bearing.
The rotor includes construction section and supporting section, and the bearing is arranged on the supporting section, and the oil groove of crossing is arranged
In the middle part of the construction section, and the oil groove excessively passes through gap and the bearing between the construction section and the bearing block
Connection.
The construction section includes the first construction section and the second construction section, and first construction section and institute is arranged in the oil groove of crossing
It states between the second construction section, and is formed with the first gap between second construction section and the bearing block.
The magnitude range in first gap is 0.03-0.08mm.
The second gap is formed between first construction section and the bearing block, and the size in second gap is less than
The size in first gap.
The magnitude range in first gap is 0.01-0.03mm.
The cross-sectional area for crossing oil groove is greater than the circulation area of the oil supplying hole.
The oil groove of crossing is endless groove, and the axis collinear of the axis of the endless groove and the rotor.
The width dimensions for crossing oil groove are greater than 10mm and/or the depth for crossing oil groove is greater than 1mm.
The rotor further includes compression section, and the quantity of the construction section and the supporting section is two, and the compression section
Two ends be provided with the construction section and a supporting section.
The first end of first construction section is connect with the end of the compression section.
A kind of helical-lobe compressor, including above-mentioned rotor oil supply structure.
The quantity of the rotor is two, and each rotor passes through the rotor oil supply structure fuel feeding.
Rotor oil supply structure and helical-lobe compressor provided by the utility model, were provided with oil groove on rotor, from oil groove mistake
The extreme pressure lubricant come, which is supplied on rotor, crosses oil groove, then could arrive bearing by the second gap, generates the effect of similar sliding bearing
Fruit generates certain buoyancy to axle journal, can offset a part of bearing radial load, can be by the way that the first gap is arranged
Enough oil film thicknesses are generated between two construction sections and bearing block, in the case where guaranteeing that lubricating oil passes through, reduce the second installation
Rotation load between section and bearing block, the second gap can guarantee that lubricating oil will not guarantee between first to flowing at compression section
The abundance of lubricating oil in gap improves compressor reliability, can also reduce the quantity of bearing of compressor, promotes compressor sexual valence
Than.
Detailed description of the invention
Fig. 1 is the rotor and mistake oil groove of the embodiment of rotor oil supply structure provided by the utility model and helical-lobe compressor
Structural schematic diagram；
Fig. 2 is the rotor oil supply structure of the embodiment of rotor oil supply structure provided by the utility model and helical-lobe compressor
Structural schematic diagram；
In figure:
1, rotor；2, bearing；3, bearing block；4, oil groove is crossed；11, construction section；12, supporting section；111, the first construction section；
112, the second construction section；5, the first gap；6, the second gap；7, oil supplying hole.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
The present invention will be further described in detail for example.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model is not used to limit the utility model.
Rotor oil supply structure as depicted in figs. 1 and 2, rotor 1 are rotatably set on bearing block 3 by bearing 2, institute
Stating bearing 2 is cylinder roller bearing, is provided with oil supplying hole 7 on the bearing block 3, oil groove 4, institute were provided on the rotor 1
State and be formed with gap runner between rotor 1 and the bearing block 3, and the oil supplying hole pass sequentially through it is described cross oil groove and it is described between
Clearance flow road is connected to the bearing, utilizes oil groove 4 and gap runner, and the lubricating oil of high pressure is sent by rotor 1 to bearing 2,
Oil film is generated in the runner of gap using pressure, and is acted on using the recoil of extreme pressure lubricant, can generate one to rotor 1
Radial force, so that a part of 2 radial load of bearing is counteracted, it is right so as to avoid extreme pressure lubricant from being fed directly at bearing 2
Bearing 2 carries out a degree of problem for squeezing and keeping the load of bearing 2 larger.
The rotor 1 include construction section 11 and supporting section 12, the bearing 2 be arranged on the supporting section 12, the mistake
Between oil groove 4 is set on the construction section 11, and the mistake oil groove 4 passes through between the construction section 11 and the bearing block 3
Gap is connected to the bearing 2, and gap of the extreme pressure lubricant between rotor 1 and bearing block 3 is sent to from bearing 2, can be full
Under the premise of sufficient bearing 2 lubricates, certain buoyancy is generated to rotor 1.
The construction section 11 includes the first construction section 111 and the second construction section 112, and the oil groove 4 of crossing is arranged described first
Is formed between construction section 111 and second construction section 112, and between second construction section 112 and the bearing block 3
One gap 5, using the first gap 5 formed small gap channel realize lubricating oil circulation, lubricating oil can in the first gap 5 shape
At oil film, certain buoyancy is generated to the second construction section 112, the effect of similar sliding bearing 2 is formed simultaneously, offsets 2 diameter of bearing
To load.
The magnitude range in first gap 5 is 0.03-0.08mm, guarantees that oil film thickness can generate buoyancy and radial direction
Power.
The second gap 6 is formed between first construction section 111 and the bearing block 3, and second gap 6 is big
It is less than the size in first gap 5, prevents lubricating oil from flowing to other positions using the second gap 6, guarantee lubricating oil flow
Reliability.
The magnitude range in first gap 5 is 0.01-0.03mm.
The cross-sectional area for crossing oil groove 4 is greater than the circulation area of the oil supplying hole 7, guarantees that lubricating oil enters from oil supplying hole
Restriction effect will not be generated when crossing oil groove, so that the phenomenon that generating oil inlet resistance is overcome, to guarantee that lubricating oil can be uniformly distributed
Oil groove is being crossed, wherein the cross-sectional area for crossing oil groove 4 was groove depth × groove width of oil groove.
The oil groove 4 of crossing is endless groove, and the endless groove is provided with the side of second construction section 112, and the ring
The axis collinear of the axis of shape slot and the rotor 1.
The width dimensions for crossing oil groove 4 are greater than 10mm and/or the depth for crossing oil groove 4 is greater than 1mm, and guarantee, which has, fills
The lubricating oil of foot is able to enter in the first gap 5.
The rotor 1 further includes compression section, and the quantity of the construction section 11 and the supporting section 12 is two, and the pressure
Two ends of contracting section are provided with the construction section 11 and a supporting section 12.
The first end of first construction section 111 is connect with the end of the compression section.
A kind of helical-lobe compressor, including above-mentioned rotor oil supply structure.
The quantity of the rotor 1 is two, and each rotor 1 passes through the rotor oil supply structure fuel feeding.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (13)
1. a kind of rotor oil supply structure, rotor (1) is rotatably set on bearing block (3) by bearing (2), the bearing block
(3) oil supplying hole (7) are provided on, it is characterised in that: be provided with oil groove (4) on the rotor (1), the rotor (1) and institute
It states and is formed with gap runner between bearing block (3), and the oil supplying hole (7) passes sequentially through oil groove (4) and the gap excessively
Runner is connected to the bearing (2).
2. rotor oil supply structure according to claim 1, it is characterised in that: the rotor (1) include construction section (11) and
Supporting section (12), the bearing (2) are sheathed on the supporting section (12), and cross oil groove (4) are set to the construction section
(11) on, and in the construction section (11) crossed between oil groove (4) and the bearing (2) and the bearing block (3) it
Between be provided with gap and form the gap runner.
3. rotor oil supply structure according to claim 2, it is characterised in that: the construction section (11) includes the first construction section
(111) and first construction section (111) and second construction section is arranged in the second construction section (112), described cross oil groove (4)
(112) between being provided between, and between second construction section (112) and the bearing block (3) described in the first gap (5) formation
Clearance flow road.
4. rotor oil supply structure according to claim 3, it is characterised in that: the magnitude range of first gap (5) is
0.03-0.08mm。
5. rotor oil supply structure according to claim 3, it is characterised in that: first construction section (111) and the axis
It holds and is formed with the second gap (6) between seat (3), and the size in second gap (6) is less than the big of first gap (5)
It is small.
6. rotor oil supply structure according to claim 5, it is characterised in that: the magnitude range of first gap (5) is
0.01-0.03mm。
7. rotor oil supply structure according to claim 1, it is characterised in that: the cross-sectional area for crossing oil groove (4) is greater than
The circulation area of the oil supplying hole (7).
8. rotor oil supply structure according to claim 1, it is characterised in that: described cross oil groove (4) are endless groove, and described
The axis collinear of the axis of endless groove and the rotor (1).
9. rotor oil supply structure according to claim 1, it is characterised in that: the width dimensions for crossing oil groove (4) are greater than
10mm and/or the depth for crossing oil groove (4) are greater than 1mm.
10. rotor oil supply structure according to claim 3, it is characterised in that: the rotor (1) further includes compression section, institute
The quantity of the quantity and the supporting section (12) of stating construction section (11) is two, and two ends of the compression section are respectively provided with
There are the construction section (11) and a supporting section (12).
11. rotor oil supply structure according to claim 10, it is characterised in that: the first of second construction section (112)
End is connect with the end of the compression section.
12. a kind of helical-lobe compressor, it is characterised in that: including rotor oil supply structure described in any one of claims 1 to 11.
13. helical-lobe compressor according to claim 12, it is characterised in that: the quantity of the rotor (1) is two, and every
One rotor (1) passes through the rotor oil supply structure fuel feeding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253114.3U CN209430414U (en) | 2018-12-29 | 2018-12-29 | Rotor oil supply structure and helical-lobe compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822253114.3U CN209430414U (en) | 2018-12-29 | 2018-12-29 | Rotor oil supply structure and helical-lobe compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430414U true CN209430414U (en) | 2019-09-24 |
Family
ID=67974739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822253114.3U Active CN209430414U (en) | 2018-12-29 | 2018-12-29 | Rotor oil supply structure and helical-lobe compressor |
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| Country | Link |
|---|---|
| CN (1) | CN209430414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469623A (en) * | 2018-12-29 | 2019-03-15 | 珠海格力电器股份有限公司 | Rotor oil supply structure and helical-lobe compressor |
-
2018
- 2018-12-29 CN CN201822253114.3U patent/CN209430414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469623A (en) * | 2018-12-29 | 2019-03-15 | 珠海格力电器股份有限公司 | Rotor oil supply structure and helical-lobe compressor |
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