CN105526172A - Single-screw compressor with reliable lubrication - Google Patents
Single-screw compressor with reliable lubrication Download PDFInfo
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- CN105526172A CN105526172A CN201511023940.3A CN201511023940A CN105526172A CN 105526172 A CN105526172 A CN 105526172A CN 201511023940 A CN201511023940 A CN 201511023940A CN 105526172 A CN105526172 A CN 105526172A
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- oil
- oil groove
- bearing
- stationary ring
- screw compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a single-screw compressor with reliable lubricator. Bearings on the second ends of star wheel racks of the single-screw compressor are not liable to damage, and have relatively long service lives. According to the single-screw compressor with the reliable lubrication, first ends of the star wheel racks are mounted on bearing bases I through bearings I; the bearing bases I are fixed to an enclosure; the second ends of the star wheel racks are provided with movable rings; static rings are arranged in bearing cavities of bearing bases II; the movable rings and the static rings form a hydrostatic bearing; a first oil inlet path and a second oil inlet path are arranged on each static ring, and an arc angle between the first oil inlet path and the second oil inlet path is 180 degrees; a first oil slot I, a second oil slot I, a third oil slot I, a first oil slot II, a second oil slot II and a third oil slot II are arranged in the inner surface of each static ring; an oil inlet is further formed in each bearing base II; each oil inlet is communicated with each first oil inlet path and each second oil inlet path; and an oil drainage hole is formed in each bearing base II.
Description
Technical field
The invention belongs to the technical field of single screw compressor.
Background technique
At present, single screw compressor comprises casing, screw axis is arranged on casing by the first seal arrangement and the second seal arrangement, and the free end of screw axis is exposed at the outside of the first seal arrangement and is connected with the inner ring of free end bearing, the power end of screw axis is exposed at the outside of the second seal arrangement and is connected with the inner ring of fixed end bearing, fixed end bearing and free end bearing are located in fixed end bearing support and free end shaft bearing respectively, fixed end bearing support and free end shaft bearing are located on the two ends of casing respectively, screw rod is provided with spiral chute, in casing, be positioned at spiral fluted front portion be provided with chamber, screw rod is meshed with two star-wheels, star-wheel is arranged on star wheel frame, the first end of star wheel frame is arranged on bearing support one by bearing one, bearing support one is fixed on casing, bearing one is positioned at the outside of the 3rd seal arrangement, second end of star wheel frame is arranged on bearing support two by bearing two, bearing support two is arranged on casing.Usually, bearing two adopts roller bearing.Roller bearing is in use at ordinary times, and it is quite responsive for shaking the damage of bearing.But during single screw compressor work, vibrations are inevitably, and this just causes roller bearing rapid wear, need to safeguard in good time.
Summary of the invention
The object of this invention is to provide a kind of single screw compressor with proper lubrication, the bearing on its star wheel frame second end is not fragile, has longer working life.
The object of the present invention is achieved like this: a kind of single screw compressor with proper lubrication, comprise casing, screw axis is arranged on casing by the first seal arrangement and the second seal arrangement, and the free end of screw axis is exposed at the outside of the first seal arrangement and is connected with the inner ring of free end bearing, the power end of screw axis is exposed at the outside of the second seal arrangement and is connected with the inner ring of fixed end bearing, fixed end bearing and free end bearing are located in fixed end bearing support and free end shaft bearing respectively, fixed end bearing support and free end shaft bearing are located on the two ends of casing respectively, screw rod is provided with spiral chute, in casing, be positioned at spiral fluted front portion be provided with chamber, screw rod is meshed with two star-wheels, star-wheel is arranged on star wheel frame, the first end of star wheel frame is arranged on bearing support one by bearing one, bearing support one is fixed on casing, second end of star wheel frame is provided with rotating ring, stationary ring is located in the bearing bore of bearing support two, rotating ring and stationary ring form hydrostatic bearing, stationary ring is provided with the first oil input channel and the second oil input channel, arc angle between first oil input channel and the second oil input channel is 180o, the internal surface of stationary ring is provided with the first oil groove one, second oil groove one, 3rd oil groove one, first oil groove two, second oil groove two and the 3rd oil groove two, first oil groove one is connected with the first oil input channel, and the first oil groove one is stretched along the circumference edge of stationary ring, one end of first oil groove one is connected with the second oil groove one, the other end of the first oil groove one is connected with the 3rd oil groove one, and the second oil groove one and the 3rd oil groove one extend along the axis of stationary ring, first oil groove two is connected with the second oil input channel, and the first oil groove two extends along the circumference of stationary ring, one end of first oil groove two is connected with the second oil groove two, the other end of the first oil groove two is connected with the 3rd oil groove two, and the second oil groove two and the 3rd oil groove two extend along the axis of stationary ring, bearing support two is also provided with oil inlet hole, oil inlet hole is connected with the second oil input channel with the first oil input channel, bearing support two is provided with oil drainage hole.
On the basis of such scheme and as the preferred version of such scheme: rotating ring is be sprayed on the ceramic layer on the second end of star wheel frame.
On the basis of such scheme and as the preferred version of such scheme: the arc angle between the first oil duct and the second oil groove one is 30o.
On the basis of such scheme and as the preferred version of such scheme: the arc angle between the first oil duct and the 3rd oil groove one is 60o.
On the basis of such scheme and as the preferred version of such scheme: the arc angle between the second oil duct and the second oil groove two is 30o.
On the basis of such scheme and as the preferred version of such scheme: the arc angle between the second oil duct and the 3rd oil groove two is 60o.
On the basis of such scheme and as the preferred version of such scheme: the arc angle between the second oil groove one and the 3rd oil groove two is 90o.
On the basis of such scheme and as the preferred version of such scheme: stationary ring adopts graphite material to make.
On the basis of such scheme and as the preferred version of such scheme: oil drainage hole is positioned at the below of stationary ring, and one end of oil drainage hole is connected with the bearing bore of bearing support two, and the other end of oil drainage hole is connected with chamber.
The present invention gives prominence to compared to existing technology and useful technique effect is:
1, the single screw compressor with proper lubrication of the present invention, due to the second oil groove one, 3rd oil groove one, second oil groove two and the 3rd oil groove two are in axially extending, make rotating ring have longer length in the axial direction to contact with lubricant oil, to make to form oil film between itself and stationary ring after rotating ring rotates, ensure, between rotating ring and stationary ring, there is reliable lubrication, moreover, it is oil film between stationary ring and stationary ring, stationary ring can not directly be contacted with rotating ring, this just makes its vibrations relative insensitivity, there is longer working life, correspondingly extend the maintenance time of single screw compressor.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is sectional view of the present invention.
Fig. 3 is the structural representation of stationary ring of the present invention.
Fig. 4 is the sectional view of stationary ring of the present invention.
Fig. 5 is the sectional view of stationary ring of the present invention.
Embodiment
Below in conjunction with accompanying drawing, with specific embodiment, the invention will be further described, see Fig. 1-Fig. 5;
This gives a kind of single screw compressor with proper lubrication, comprise casing 1, screw axis is located on the first seal arrangement 21 and the second seal arrangement 22, screw axis is arranged on casing 1 by the first seal arrangement 21 and the second seal arrangement 22, specifically, screw axis is located on the first seal arrangement 21 and the second seal arrangement 22, first seal arrangement 21 and the second seal arrangement 22 are arranged on casing, formed between the first seal arrangement 21 and screw axis and between the second seal arrangement 22 and screw axis and seal, to prevent from being revealed by pressurized gas.The free end 31 of screw axis is exposed at the outside of the first seal arrangement 21 and is connected with the inner ring 411 of free end bearing 41, the power end 32 of screw axis is exposed at the outside of the second seal arrangement 22 and is connected with the inner ring 421 of fixed end bearing 42, fixed end bearing 42 and free end bearing 41 are located in fixed end bearing support 51 and free end shaft bearing 52 respectively, and fixed end bearing support 51 and free end shaft bearing 52 are located on the two ends of casing 1 respectively.Screw rod 3 is provided with spiral chute 33, and the front portion being positioned at spiral chute 33 in casing 1 is provided with chamber 11, and operationally, air inlet enters spiral chute through this chamber to this single screw compressor.
The screw rod 3 be fixed on screw axis is meshed with two star-wheels 61, and star-wheel 61 is arranged on star wheel frame 62.As shown in FIG., star wheel frame comprises star-wheel support 621 and spider gear shaft 622, and star-wheel support is fixed on spider gear shaft, and star-wheel is fixed on star-wheel support.The first end 62a of star wheel frame 62 is arranged on bearing support 1 by bearing 1, and bearing support 1 is fixed on casing 1.Second end 62b of star wheel frame 62 is arranged on bearing support 2 82 by hydrostatic bearing, and specifically, hydrostatic bearing comprises stationary ring 91 and rotating ring 92, and the second end 62b of star wheel frame 62 is provided with rotating ring 92, and stationary ring 91 is located in the bearing bore 821 of bearing support 82.
Stationary ring 91 is provided with the first oil input channel 911 and the second oil input channel 912, arc angle between first oil input channel and the second oil input channel is 180o, and the internal surface of stationary ring is provided with the first oil groove one 913, second oil groove 1, the 3rd oil groove one 915, first oil groove 2 916, second oil groove 2 917, the 3rd oil groove 2 918.As shown in FIG., the first oil groove 1 is stretched along the circumference edge of stationary ring, and position adjacent with rotating ring on the first oil groove one is open ports.First oil groove 2 916 is stretched along the circumference edge of stationary ring, and position adjacent with rotating ring on the first oil groove two is open ports.In the present embodiment, the first oil groove one 913, first oil groove 2 916 is symmetrical set, and the arc angle between the end that namely the first oil groove one is adjacent with the first oil groove two is equal.On second oil groove 1, the 3rd oil groove one 915, second oil groove 2 917 and the 3rd oil groove 2 918, the position adjacent with rotating ring is open ports, makes injection lubricant oil in the inner overflow and form oil film between stationary ring and rotating ring.Second oil groove one, the 3rd oil groove one, second oil groove two and the 3rd oil groove two all extend along the axis of stationary ring, and it is in a parallel set each other.As shown in FIG., first oil groove one is connected with the first oil input channel, one end of first oil groove one is connected with the second oil groove one, the other end of the first oil groove one is connected with the 3rd oil groove one, first oil groove two is connected with the second oil input channel, one end of first oil groove two is connected with the second oil groove two, and the other end of the first oil groove two is connected with the 3rd oil groove two.Because the second oil groove one, the 3rd oil groove one, second oil groove two and the 3rd oil groove two are in axially extending, make rotating ring have longer length in the axial direction to contact with lubricant oil, to make to form oil film between itself and stationary ring after rotating ring rotates, ensure, between rotating ring and stationary ring, there is reliable lubrication.
Bearing support 2 82 is also provided with oil inlet hole 822, and this oil inlet hole is connected with oil supplying device, to inject lubricant oil by oil inlet hole.Oil inlet hole 822 is connected with the second oil input channel 912 with the first oil input channel 911, and bearing support 2 82 is provided with oil drainage hole 823.In the present embodiment, oil drainage hole 822 is positioned at the below of stationary ring 91, and one end of oil drainage hole 823 is connected with the bearing bore 821 of bearing support two, and the other end of oil drainage hole 823 is connected with chamber 11.By arranging oil drainage hole structure, in use, lubricant oil together discharges single screw compressor with pressurized gas after oil drainage hole is discharged, and makes the lubricant oil being supplied to sliding bearing for can promptly discharge, and be unlikely and accumulate in bearing support two, thus sliding bearing is made to obtain good cooling.Moreover oil drainage hole matches with oil inlet hole, to make to supply the structure that the lubricant oil of sliding bearing lubricating is outer circulation, carrier is taken turns can not overheated locking under high speed rotating.
In the present embodiment, rotating ring 92 is for being sprayed on the ceramic layer on the second end of star wheel frame.Stationary ring adopts graphite material to make.
In the present embodiment, the arc angle α 1 between the first oil duct 911 and the second oil groove 1 is 30o.Arc angle α 2 between first oil duct 911 and the 3rd oil groove 1 is 60o.Arc angle α 3 between second oil duct 912 and the second oil groove 2 917 is 30o.Arc angle α 4 between second oil duct 912 and the 3rd oil groove 2 918 is 60o.Arc angle α 5 between second oil groove 1 and the 3rd oil groove 2 918 is 90o.Arc angle between 3rd oil groove 1 and the second oil groove 2 917 is 90o.Adopt this structure, make the second end of star wheel frame can set up oil film and can ensure all the time and stationary ring coaxial line before rotation.
Above-described embodiment is only preferred embodiment of the present invention, not limits the scope of the invention according to this, therefore: all equivalence changes done according to structure of the present invention, shape, principle, all should be covered by within protection scope of the present invention.
Claims (9)
1. one kind has the single screw compressor of proper lubrication, comprise casing, screw rod is arranged on casing by the first seal arrangement and the second seal arrangement, and the free end of screw axis is exposed at the outside of the first seal arrangement and is connected with the inner ring of free end bearing, the power end of screw axis is exposed at the outside of the second seal arrangement and is connected with the inner ring of fixed end bearing, fixed end bearing and free end bearing are located in fixed end bearing support and free end shaft bearing respectively, fixed end bearing support and free end shaft bearing are located on the two ends of casing respectively, screw rod is provided with spiral chute, in casing, be positioned at spiral fluted front portion be provided with chamber, screw rod is meshed with two star-wheels, star-wheel is arranged on star wheel frame, the first end of star wheel frame is arranged on bearing support one by bearing one, bearing support one is fixed on casing, it is characterized in that: the second end of star wheel frame is provided with rotating ring, stationary ring is located in the bearing bore of bearing support two, rotating ring and stationary ring form hydrostatic bearing, stationary ring is provided with the first oil input channel and the second oil input channel, arc angle between first oil input channel and the second oil input channel is 180o, the internal surface of stationary ring is provided with the first oil groove one, second oil groove one, 3rd oil groove one, first oil groove two, second oil groove two and the 3rd oil groove two, first oil groove one is connected with the first oil input channel, and the first oil groove one is stretched along the circumference edge of stationary ring, one end of first oil groove one is connected with the second oil groove one, the other end of the first oil groove one is connected with the 3rd oil groove one, and the second oil groove one and the 3rd oil groove one extend along the axis of stationary ring, first oil groove two is connected with the second oil input channel, and the first oil groove two extends along the circumference of stationary ring, one end of first oil groove two is connected with the second oil groove two, the other end of the first oil groove two is connected with the 3rd oil groove two, and the second oil groove two and the 3rd oil groove two extend along the axis of stationary ring, bearing support two is also provided with oil inlet hole, oil inlet hole is connected with the second oil input channel with the first oil input channel, bearing support two is provided with oil drainage hole.
2. the single screw compressor with proper lubrication according to claim 1, is characterized in that: rotating ring is be sprayed on the ceramic layer on the second end of star wheel frame.
3. the single screw compressor with proper lubrication according to claim 1, is characterized in that: the arc angle between the first oil duct and the second oil groove one is 30o.
4. the single screw compressor with proper lubrication according to claim 1, is characterized in that: the arc angle between the first oil duct and the 3rd oil groove one is 60o.
5. the single screw compressor with proper lubrication according to claim 1, is characterized in that: the arc angle between the second oil duct and the second oil groove two is 30o.
6. the single screw compressor with proper lubrication according to claim 1, is characterized in that: the arc angle between the second oil duct and the 3rd oil groove two is 60o.
7. the single screw compressor with proper lubrication according to claim 1, is characterized in that: the arc angle between the second oil groove one and the 3rd oil groove two is 90o.
8. the single screw compressor with proper lubrication according to claim 1, is characterized in that: stationary ring adopts graphite material to make.
9. the single screw compressor with proper lubrication according to claim 1, is characterized in that: oil drainage hole is positioned at the below of stationary ring, one end of oil drainage hole is connected with the bearing bore of bearing support two, and the other end of oil drainage hole is connected with chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023940.3A CN105526172B (en) | 2015-12-30 | 2015-12-30 | Single screw compressor with proper lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023940.3A CN105526172B (en) | 2015-12-30 | 2015-12-30 | Single screw compressor with proper lubrication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105526172A true CN105526172A (en) | 2016-04-27 |
| CN105526172B CN105526172B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511023940.3A Active CN105526172B (en) | 2015-12-30 | 2015-12-30 | Single screw compressor with proper lubrication |
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| Country | Link |
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| CN (1) | CN105526172B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04358786A (en) * | 1991-06-05 | 1992-12-11 | Daikin Ind Ltd | Single screw compressor |
| CN101576121A (en) * | 2009-06-17 | 2009-11-11 | 重庆大学 | Static-dynamic mixed oil film bearing |
| CN201908841U (en) * | 2011-01-04 | 2011-07-27 | 浙江杰能压缩设备有限公司 | Star wheel mechanism of water lubrication single helical-lobe compressor |
| CN202789537U (en) * | 2012-06-12 | 2013-03-13 | 浙江杰能压缩设备有限公司 | Shaft-seal-free oil injection single-screw air compressor |
| CN103032327A (en) * | 2012-12-26 | 2013-04-10 | 宣化冶金工业有限责任公司 | Water-lubricating single-screw air compressor |
| CN205330988U (en) * | 2015-12-30 | 2016-06-22 | 好米动力设备有限公司 | Single screw compressor with proper lubrication |
-
2015
- 2015-12-30 CN CN201511023940.3A patent/CN105526172B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04358786A (en) * | 1991-06-05 | 1992-12-11 | Daikin Ind Ltd | Single screw compressor |
| CN101576121A (en) * | 2009-06-17 | 2009-11-11 | 重庆大学 | Static-dynamic mixed oil film bearing |
| CN201908841U (en) * | 2011-01-04 | 2011-07-27 | 浙江杰能压缩设备有限公司 | Star wheel mechanism of water lubrication single helical-lobe compressor |
| CN202789537U (en) * | 2012-06-12 | 2013-03-13 | 浙江杰能压缩设备有限公司 | Shaft-seal-free oil injection single-screw air compressor |
| CN103032327A (en) * | 2012-12-26 | 2013-04-10 | 宣化冶金工业有限责任公司 | Water-lubricating single-screw air compressor |
| CN205330988U (en) * | 2015-12-30 | 2016-06-22 | 好米动力设备有限公司 | Single screw compressor with proper lubrication |
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| Publication number | Publication date |
|---|---|
| CN105526172B (en) | 2017-12-12 |
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Address after: 201100 508 purple sun Road, Minhang District, Shanghai, 3 Patentee after: HAOMI POWER EQUIPMENT CO., LTD. Address before: Jiaxing City, Zhejiang Province, Pinghu City, 314000 new town Ping Xing Road No. 85 room 205 concentric Patentee before: HAOMI POWER EQUIPMENT CO., LTD. |