CN103807186A - High-speed fluid power machine - Google Patents
High-speed fluid power machine Download PDFInfo
- Publication number
- CN103807186A CN103807186A CN201210445468.2A CN201210445468A CN103807186A CN 103807186 A CN103807186 A CN 103807186A CN 201210445468 A CN201210445468 A CN 201210445468A CN 103807186 A CN103807186 A CN 103807186A
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- China
- Prior art keywords
- power machine
- velocity fluid
- dynamic power
- fluid dynamic
- oil circuit
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- 239000012530 fluid Substances 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims description 50
- 241000239290 Araneae Species 0.000 claims description 34
- 238000007789 sealing Methods 0.000 claims description 16
- 239000002828 fuel tank Substances 0.000 claims description 8
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 7
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 230000008450 motivation Effects 0.000 claims description 3
- 230000004323 axial length Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a high-speed fluid power machine. The high-speed fluid power machine comprises a box body; the high-speed motor shaft is arranged in the box body; the motor bearing is sleeved on the high-speed motor shaft; and the bearing support is arranged between the motor bearing and the box body and is simultaneously connected with the box body and the motor bearing. The bearing support is used, so that the limitation of the high-pressure volute on the placement position of the motor bearing is solved, the axial length of the high-speed shaft is fully utilized, and the problem that the critical rotating speed of the compressor is reduced due to the overlong length of the high-speed shaft is solved.
Description
Technical field
The present invention relates to compressor field, especially, relate to a kind of high-velocity fluid dynamic power machine.
Background technique
The front end sliding bearing of centrifugal refigerating compressor motor shaft is generally directly installed on casing at present, but because the restriction of fuel feeding path, motor bearings cannot be arranged in high pressure spiral case institute planar.So just cause compressor inner structure compact not, high speed shaft cannot do short, thereby makes compressor critical speed of rotation be limited in lower level.
Summary of the invention
The object of the invention is to provide a kind of high-velocity fluid dynamic power machine, to solve the art problem of the lower skill of critical speed of rotation of existing compressor.
For achieving the above object, the invention provides a kind of high-velocity fluid dynamic power machine, comprise casing; High-speed Electric arbor, is arranged in casing; Motor bearings, is set on High-speed Electric arbor; Bearing spider, is arranged on motor bearings and is also connected with motor bearings with casing in the middle of casing simultaneously.
Further, bearing spider comprises bearing joint and casing joint, and bearing joint and casing joint are ring, and bearing joint and casing joint be not in same plane, and bearing joint is connected by diagonal bar with casing joint.
Further, diagonal bar has many, forms through hole between diagonal bar.
Further, bearing spider inside is provided with the oil circuit for lubricating oil flow.
Further, high-velocity fluid dynamic power machine also comprises fuel tank, and the filler opening of oil circuit is positioned at bearing spider on the end face of fuel tank one side.
Further, oil circuit comprises axial oil circuit and oil circuit radially, and radially the first end of oil circuit is connected with filler opening, and radially the second end of oil circuit is communicated with the axial first end of oil circuit, and the second end of axial oil circuit is connected with the lubricating oil inlet of motor bearings.
Further, bearing spider inside is provided with for preventing that lubricant oil from entering the sealing gland path of electric device.
Further, high-velocity fluid dynamic power machine also comprises high pressure spiral case, is provided with the gas circuit being communicated with high pressure spiral case in casing, and bearing spider is provided with suction port, and suction port is communicated with gas circuit.
Further, on High-speed Electric arbor, be arranged with oil resistance sealing, on the oil-tightening end face of resistance, be provided with the relief opening of sealing gland path at bearing spider.
Further, high-velocity fluid motivation machinery is centrifugal compressor.
The present invention has following beneficial effect:
The present invention intends, by using bearing spider, solving the restriction of high pressure spiral case to motor bearings placement location, and the axial length of high speed shaft is fully utilized, and has solved the problem that causes compressor critical speed of rotation to decline because high speed shaft length is long.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the schematic diagram of the bearing spider of high-velocity fluid dynamic power machine of the present invention;
Fig. 2 is according to the partial schematic sectional view of the oil circuit of the bearing spider of high-velocity fluid dynamic power machine of the present invention;
Fig. 3 is according to the partial schematic sectional view of the gas circuit of the bearing spider of high-velocity fluid dynamic power machine of the present invention;
Fig. 4 is the oil circuit schematic diagram according to high-velocity fluid dynamic power machine of the present invention; And
Fig. 5 is the gas circuit schematic diagram according to high-velocity fluid dynamic power machine of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1 to Fig. 5, according to high-velocity fluid dynamic power machine of the present invention, comprise casing 10; High-speed Electric arbor 20, is arranged in casing 10; Motor bearings 30, is set on High-speed Electric arbor 20; Bearing spider 40, is arranged on motor bearings 30 and is also connected with motor bearings 30 with casing 10 with in the middle of casing 10 simultaneously.
Referring to Fig. 1 to Fig. 3, bearing spider 40 comprises bearing joint 41 and casing joint 42, bearing joint 41 and casing joint 42 are ring, and bearing joint 41 and casing joint 42 be not in same plane, and bearing joint 41 is connected by diagonal bar with casing joint 42.Diagonal bar has many, forms through hole 43 between diagonal bar.
Referring to 2 and Fig. 4, bearing spider 40 inside are provided with the oil circuit 44 for lubricating oil flow.High-velocity fluid dynamic power machine also comprises fuel tank 70, and the filler opening of oil circuit 44 is positioned at bearing spider 40 on the end face of fuel tank 70 1 sides.Oil circuit 44 comprises axial oil circuit 441 and oil circuit 442 radially, and radially the first end of oil circuit 442 is connected with filler opening, and filler opening is connected with fuel tank by tank oiling channel oil 80; Radially the second end of oil circuit 442 is communicated with the first end of axial oil circuit 441, and axially the second end of oil circuit 441 is connected with the lubricating oil inlet of motor bearings 30.
Referring to Fig. 3, bearing spider 40 inside are provided with for preventing that lubricant oil from entering the sealing gland path 45 of electric device.High-velocity fluid dynamic power machine also comprises high pressure spiral case 50, is provided with the gas circuit 90 being communicated with high pressure spiral case 50 in casing 10, and bearing spider 40 is provided with suction port, and suction port is communicated with gas circuit 90.On High-speed Electric arbor 20, be arranged with oil resistance sealing 100, on the end face of oil resistance sealing 100, be provided with the relief opening of sealing gland path 45 at bearing spider 40.
Preferably, high-velocity fluid motivation machinery is centrifugal compressor.
In the time of fixed electrical machinery bearing 30, use bearing spider 40, but not be directly fixed on casing 10.By the transition of bearing spider 40, motor bearings 30 can be arranged in the plane at high pressure spiral case 50 places, has avoided because the drawback that the restriction of oil circuit Machinability Evaluation makes high pressure spiral case 50 place planes can not arrange bearing.These bearing spider 40 inside are provided with oil circuit 44 and sealing gland path 45, lubricant oil flows into bearing spider 40 ear end faces from fuel tank 70 and enters bearing spider 40 again on the one hand, pass through again oil circuit 44 radial flows to motor bearings 30, can be for motor bearings 30 provides lubricated, then reclaim by oil return space 110; On the other hand, draw pressurized gas at high pressure spiral case 50 through gas circuit 90 and enter motor oil resistance and seal 100 stage casings, can guarantee that lubricant oil can not enter electric part by motor oil resistance sealing 100.On bearing spider 40, there is the through hole 43 of five hollow outs, guaranteed the draining speed of bearing, avoid lubricant oil immersion oil resistance sealing 60, motor oil resistance sealing 100 to cause oil leak; The lubricant oil that through hole 43 releases motor bearings 30 rear and front ends is simultaneously communicated with, and centralized recovery, has simplified return line design; Also as lightening hole, alleviate the weight of bearing spider simultaneously.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
The present invention intends, by using bearing spider, solving the restriction of high pressure spiral case to motor bearings placement location, and the axial length of high speed shaft is fully utilized, and has solved the problem that causes compressor critical speed of rotation to decline because high speed shaft length is long.The present invention uses independently bearing spider, realizes multiple functions such as motor bearings is fixed, bearing fuel feeding path, oil resistance sealing sealing gland path, oil return space, bearing rear and front end simultaneously.The position of motor bearings is freer, and compressor inner structure is compacter, shortens the length of high speed shaft, thereby improves compressor critical speed of rotation.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a high-velocity fluid dynamic power machine, is characterized in that, comprising:
Casing (10);
High-speed Electric arbor (20), is arranged in described casing (10);
Motor bearings (30), is set on described High-speed Electric arbor (20);
Bearing spider (40), is arranged on described motor bearings (30) and is also connected with described motor bearings (30) with described casing (10) in the middle of described casing (10) simultaneously.
2. high-velocity fluid dynamic power machine according to claim 1, it is characterized in that, described bearing spider (40) comprises bearing joint (41) and casing joint (42), described bearing joint (41) and described casing joint (42) are ring, described bearing joint (41) and described casing joint (42) be not in same plane, and described bearing joint (41) is connected by diagonal bar with described casing joint (42).
3. high-velocity fluid dynamic power machine according to claim 2, is characterized in that, described diagonal bar has many, forms through hole (43) between described diagonal bar.
4. according to the high-velocity fluid dynamic power machine described in claims 1 to 3 any one, it is characterized in that, described bearing spider (40) inside is provided with the oil circuit (44) for lubricating oil flow.
5. high-velocity fluid dynamic power machine according to claim 4, it is characterized in that, described high-velocity fluid dynamic power machine also comprises fuel tank (70), and the filler opening of described oil circuit (44) is positioned at described bearing spider (40) on the end face of described fuel tank (70) one sides.
6. high-velocity fluid dynamic power machine according to claim 5, it is characterized in that, described oil circuit (44) comprises axial oil circuit (441) and oil circuit (442) radially, the first end of described radially oil circuit (442) is connected with described filler opening, the second end of described radially oil circuit (442) is communicated with the first end of described axial oil circuit (441), and the second end of described axial oil circuit (441) is connected with the lubricating oil inlet of described motor bearings (30).
7. according to the high-velocity fluid dynamic power machine described in claims 1 to 3 any one, it is characterized in that, described bearing spider (40) inside is provided with for preventing that lubricant oil from entering the sealing gland path (45) of electric device.
8. high-velocity fluid dynamic power machine according to claim 7, it is characterized in that, described high-velocity fluid dynamic power machine also comprises high pressure spiral case (50), in described casing (10), be provided with the gas circuit (90) being communicated with described high pressure spiral case (50), described bearing spider (40) is provided with suction port, and described suction port is communicated with described gas circuit (90).
9. high-velocity fluid dynamic power machine according to claim 7, it is characterized in that, on described High-speed Electric arbor (20), be arranged with oil resistance sealing (100), seal the relief opening that is provided with described sealing gland path (45) on the end face of (100) at described bearing spider (40) towards described oil resistance.
10. according to the high-velocity fluid dynamic power machine described in claims 1 to 3 any one, it is characterized in that, described high-velocity fluid motivation machinery is centrifugal compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210445468.2A CN103807186A (en) | 2012-11-08 | 2012-11-08 | High-speed fluid power machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210445468.2A CN103807186A (en) | 2012-11-08 | 2012-11-08 | High-speed fluid power machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103807186A true CN103807186A (en) | 2014-05-21 |
Family
ID=50704450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210445468.2A Pending CN103807186A (en) | 2012-11-08 | 2012-11-08 | High-speed fluid power machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807186A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5407235A (en) * | 1992-11-13 | 1995-04-18 | Mannesmann Aktiengesellschaft | Bearing seal for axles |
| CN200971923Y (en) * | 2006-11-17 | 2007-11-07 | 于波涛 | Outer bearing support |
| CN201330846Y (en) * | 2008-12-22 | 2009-10-21 | 武钢集团昆明钢铁股份有限公司 | Sealing device of motor bearing pedestal |
| CN202510407U (en) * | 2012-04-20 | 2012-10-31 | 珠海格力电器股份有限公司 | Centrifugal compressor and composite bearing support thereof |
| CN202867275U (en) * | 2012-11-08 | 2013-04-10 | 珠海格力电器股份有限公司 | High-speed fluid power machine |
-
2012
- 2012-11-08 CN CN201210445468.2A patent/CN103807186A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5407235A (en) * | 1992-11-13 | 1995-04-18 | Mannesmann Aktiengesellschaft | Bearing seal for axles |
| CN200971923Y (en) * | 2006-11-17 | 2007-11-07 | 于波涛 | Outer bearing support |
| CN201330846Y (en) * | 2008-12-22 | 2009-10-21 | 武钢集团昆明钢铁股份有限公司 | Sealing device of motor bearing pedestal |
| CN202510407U (en) * | 2012-04-20 | 2012-10-31 | 珠海格力电器股份有限公司 | Centrifugal compressor and composite bearing support thereof |
| CN202867275U (en) * | 2012-11-08 | 2013-04-10 | 珠海格力电器股份有限公司 | High-speed fluid power machine |
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Application publication date: 20140521 |
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| RJ01 | Rejection of invention patent application after publication |