CN209370280U - A kind of tilting-pad bearing - Google Patents
A kind of tilting-pad bearing Download PDFInfo
- Publication number
- CN209370280U CN209370280U CN201821840176.8U CN201821840176U CN209370280U CN 209370280 U CN209370280 U CN 209370280U CN 201821840176 U CN201821840176 U CN 201821840176U CN 209370280 U CN209370280 U CN 209370280U
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- Prior art keywords
- tilting
- nozzle
- pad
- oil
- horizontal line
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- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 239000012634 fragment Substances 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 241000208167 Oxalis Species 0.000 abstract 1
- 235000008098 Oxalis acetosella Nutrition 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 40
- 239000000243 solution Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
The utility model belongs to sliding bearing manufacturing technology field, is related to a kind of tilting-pad bearing.Mainly it is made of tilting pad, watt frame and nozzle；Watt frame inner hole is uniformly mounted with five pieces of tilting pads, and two pieces of tile fragments are equipped on installation horizontal line, and installation horizontal line has griffith woodsorrel herb block；Three direct injection nozzles are mounted between four adjacent tile fragments, it installs and arranges a nozzle on horizontal line, two nozzles of horizontal line arranged beneath, to install the close horizontal nozzle location on horizontal line as starting point, the circumference installation direction of three nozzles turns that direction is consistent with axis, and what the position of nozzle was directly aligned is oil film forming region.Using nozzle directly to axle journal oil jet lubrication and cooling, required total oil mass greatly reduces the utility model；Increase the gap between oil blocking ring and axle journal, allows the gap between oil blocking ring and axle journal to become drain path, oil return speed is fast；Bearing trapped fuel is few, and mechanical loss is small, and temperature rise is low.
Description
Technical field
The invention belongs to sliding bearing manufacturing technology fields, are related to a kind of tilting-pad bearing.
Background technique
Tilting-pad bearing the arc tile fragment of free inclination can generally be formed by 3~6 on fulcrum, so it is more to be called branch living
Shoe radial journal bearing is also named and swings split sleeve bearing.Its tile fragment can freely be put with the difference of revolving speed, load and bearing temperature
It is dynamic, heavy wool film is formed around axle journal, and each oil film pressure always points at center, have bearing capacity big, good anti-vibration, power consumption
It is small, the high advantage of rotating accuracy.It is widely used in centrifugal compressor and steam turbine field at present.
Traditional tilting-pad bearing is immersion bearing, and presently, there are three problems: (1) bearing majority is immersed in
In lubricating oil, so required oil mass is larger；(2) axis also corresponds to rotate in the oil, produces additional mechanical loss；(3) by
It is more in trapped fuel, and bearing is top draining, causes high temperature oil oil return unsmooth, so that entire bearing pad temperature.It is known that such as
Fruit continuous high temperature may cause tile fragment sintering, rotate bending shaft, or even the serious consequence shut down.The utility model is in traditional axis
3 direct injection nozzles are increased on the basis of holding to journal oil diaphragm area direct injection, and are increased between oil blocking ring and axle journal
Gap, allow high temperature oil draining directly from oil blocking ring, simply and effectively solve the above problem.
It solves the above problems, technological difficulties existing for the utility model are: 1, how to change the oil spout to rotation axis
Circuit, and reduce Bearing inner trapped fuel；2, how the nozzle newly increased is arranged in tilting-pad bearing interior location；3, nozzle
How the quantity and specification of spray-hole select.
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the utility model provides a kind of tilting-pad bearing, in traditional bearing
On the basis of, 3 direct injection nozzles are increased between adjacent tile fragment, the draining between oil blocking ring and axle journal realizes total need
Oil mass is few, and mechanical loss is small, the low advantage of bearing shell temperature rise.
(2) technical solution
In order to achieve the above object, the main technical schemes structure that the present invention uses includes: tilting pad, watt frame, nozzle,
Oil blocking ring, bleed screw, tile fragment locating pin.It is installed respectively with bleed screw on watt frame between 4 adjacent tilting pads
3 direct injection nozzles are installed and arrange 1 nozzle on horizontal line, and horizontal line arranged beneath 2 nozzles are, it is specified that installation is horizontal
On line is starting point close to horizontal nozzle location, then it is consistent with axis to turn direction for the circumference installation direction of 3 nozzles；Increase
Add the gap between oil blocking ring and axle journal.
A kind of tilting-pad bearing is mainly made of tilting pad 1, watt frame 2, nozzle 3 and oil blocking ring 7；
Described watt of 2 inner hole of frame is uniformly mounted with five pieces of tilting pads 1, is equipped with two pieces of tilting pads on installation horizontal line
1, installation horizontal line has three pieces of tilting pads 1；
It is mounted with three nozzles 3 between four adjacent tilting pads, installs and arranges a nozzle, water on horizontal line
Two nozzles of horizontal line arranged beneath, using install on horizontal line close to horizontal nozzle location as starting point, three nozzles
Circumference installation direction turn that direction is consistent with axis, what the position of nozzle was directly aligned is oil film forming region；
Oil blocking ring 7 is fixed to the two sides of watt frame 2 by screw；Tilting pad 1 is gripped to two oil blocking rings 7 and watt frame 2
Between four sides, plays the role of one to tilting pad and axially and radially locate.
The arc radius at the back side of tilting pad 1 described in technical solution is less than 2 internal bore radius of watt frame, to guarantee tilting pad
1 and watt frame 2 be line contact can generate swing；
Tilting-pad bearing described in technical solution further includes tile fragment locating pin 4；
The tile fragment locating pin 4 passes through watt frame 2 and gos deep into the back of tilting pad 1, playing a circumferential direction to tilting pad 1
The effect of positioning；
Nozzle 3 described in technical solution passes through the bleed screw drift bolt hole 2-2 on watt frame 2 by bleed screw 5, so that spray
Mouth 3 is fixed at 2 inner hole of watt frame, and the arc radius R at 3 back of nozzle is consistent with 2 internal bore radius of watt frame.
Three spray-hole 3-2 are arranged in each nozzle 3 described in technical solution, and two sides of each nozzle 3 are equipped with work
Skill threaded hole 3-3.
The gross area of the front end spray-hole of three nozzles described in technical solution is less than the bearing oil inlet gross area, and axis
To being evenly arranged.
Unilateral gap △ S between nozzle 3 two described in technical solution side and adjacent tilting pad 1 is more than or equal to
1mm。
Plane where the spray-hole 3-2 of nozzle 3 described in technical solution will be lower than 7 inner hole plane at least 0.5mm of oil blocking ring.
(3) beneficial effect
The beneficial effects of the present invention are: required total oil mass subtracts significantly using nozzle directly to axle journal oil jet lubrication and cooling
It is few；Increase the gap between oil blocking ring and axle journal, the gap between oil blocking ring and axle journal is allowed to become drain path, oil return speed
Fastly；Bearing trapped fuel is few, and mechanical loss is small.
Always need oil mass few in conclusion the utility model has, mechanical loss is small, the low advantage of bearing shell temperature rise.
Detailed description of the invention
The present invention will be further described below with reference to the drawings:
Fig. 1 is the general assembly schematic diagram of the tilting-pad bearing in the utility model embodiment one；
Fig. 2 is sectional view along A-A in Fig. 1；
Fig. 3 is the nozzle arrangements front view of the tilting-pad bearing in the utility model embodiment one；
Fig. 4 is B-B direction cross-sectional view in Fig. 3；
Fig. 5 is the bleed screw structure chart of the tilting-pad bearing in the utility model embodiment one；
Fig. 6 be in Fig. 1 P to schematic diagram；
Fig. 7 is the gap schematic diagram of the tilting-pad bearing in the utility model embodiment one；
In figure:
1- tilting pad, 2- watts of frame, 3- nozzle, 4- tile fragment locating pin, 5- bleed screw, 6- positioning pin, 7- oil blocking ring, 8-
Axle journal.
Wherein, 2-1 is watt frame oil groove, and 2-2 is bleed screw drift bolt hole, and 3-1 is bleed screw matching thread mouth, and 3-2 is
Spray-hole, 3-3 are craft thread hole, and 3-4 is plug screw, and 3-5 is nozzle spray-orifice plane, and 5-1 is fuel feed hole, and 7-1 is oil blocking ring
Bore area.
Specific embodiment
The present invention is explained in detail with reference to the accompanying drawing:
In order to preferably explain the present invention, in order to understand, 1-7 with reference to the accompanying drawing, by specific embodiment, to this
Utility model is described in detail.
Embodiment one
Referring to Fig.1-6, the present embodiment provides a kind of tilting-pad bearing, structure specifically includes that tilting pad 1, watt frame 2,
Nozzle 3, tile fragment locating pin 4, bleed screw 5, positioning pin 6, oil blocking ring 7, axle journal 8.
Positioning pin 6 is arranged in tilting-pad bearing top, be inserted on watt frame a hole for interference fit, and being used to will
Tilting-pad bearing is mounted on cabinet, prevents rotation.
Axle journal 8 is penetrated into tilting-pad bearing inner hole, and tilting-pad bearing supports axle journal 8.
With reference to Fig. 1, described watt of 2 inner hole of frame is uniformly mounted with 5 pieces of tilting pads 1 that can incline, and has 2 pieces on installation horizontal line
There are 3 pieces of tilting pads 1 in tilting pad 1, horizontal line lower section；
The arc radius at 1 back side of tilting pad is less than 2 internal bore radius of watt frame, to guarantee tilting pad 1 and watt frame 2 for line
Contact can generate swing；
Referring to Fig.2, tile fragment locating pin 4 passes through watt frame aperture and partially gos deep into the back of tilting pad 1, playing tilting pad 1
The effect circumferentially positioned to one；The collective effect of watt frame 2 and oil blocking ring 7, the work of an axially position is played to tilting pad 1
With；
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the nozzle 3 passes through the bleed screw on watt frame 2 by bleed screw 5 and wears
Nail hole 2-2, bleed screw 5 is by being threadedly engaged in the bleed screw mate with threaded holes 3-1 for being screwed into nozzle 3, so that nozzle 3 is solid
It is scheduled at 2 inner hole of watt frame, since the arc radius R at 3 back of nozzle is consistent with 2 internal bore radius of watt frame, therefore nozzle 3 is fixed on a watt frame
Be after 2 inner holes consolidate it is firm；
There can be certain speed when in order in oil spurts to rotation axis, therefore each nozzle 3 is provided with 3 spray-hole 3-2,
Guarantee that the oil film axial width between tilting pad 1 and axle journal is uniform, what overhauls convenient, two sides of nozzle 3 also for processing
There is craft thread hole 3-3 in face, and after processing is completed, and two sides craft thread hole 3-3 is blocked with plug screw 3-4；
It is mounted with 3 direct injection nozzles 3 between 4 adjacent tilting pads 1,1 spray of arrangement on horizontal line is installed
Mouth 3,2 nozzles 3 of horizontal line arranged beneath, it is specified that installation horizontal line on close to horizontal 3 position of nozzle be starting point,
Then it is consistent to turn direction for the circumference installation direction of 3 nozzles 3 and axis, that is, lubricating oil cooling acts directly on oil film forming region；
Specifically, the gross area of the front end spray-hole 3-2 of 3 nozzles 3 is less than total face of bearing oil inlet 5-1
Product, i.e. Sd13 × S of >d0；
Refering to Fig. 6, in order to guarantee that tilting pad 1 does not run into nozzle 3 when swinging, therefore 3 two sides of the nozzle
Unilateral gap △ S between adjacent tilting pad 1 is more than or equal to 1mm；
Further, with reference to Fig. 7, plane, that is, nozzle spray-orifice plane 3-5 where the spray-hole 3-2 of nozzle will be lower than resistance
7 inner hole plane of oil ring, that is, oil blocking ring bore area 7-1, at least 0.5mm, i.e. △ L1 >=0.5mm；
Further, increase the gap between oil blocking ring 7 and axle journal 8, allow gap △ L between oil blocking ring 7 and axle journal 8 at
For drain path, direct draining.
A kind of tilting-pad bearing of the present embodiment, which has, as a result, always needs oil mass few, and mechanical loss is few, low excellent of bearing shell temperature rise
Point.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (8)
1. a kind of tilting-pad bearing, it is characterised in that:
Mainly it is made of tilting pad (1), watt frame (2), nozzle (3) and oil blocking ring (7)；
Described watt of frame (2) inner hole is uniformly mounted with five pieces of tilting pads (1), is equipped with two pieces of tilting pads on installation horizontal line
(1), that installs horizontal line has three pieces of tilting pads (1)；
It is mounted with three nozzles (3) between four adjacent tilting pads, installs and arranges a nozzle on horizontal line, it is horizontal
Two nozzles of line arranged beneath, using install on horizontal line close to horizontal nozzle location as starting point, three nozzles
Circumference installation direction turns that direction is consistent with axis, and what the position of nozzle was directly aligned is oil film forming region；
Oil blocking ring (7) is fixed to the two sides of watt frame (2)；Tilting pad (1) be gripped to two oil blocking rings and watt frame (2) four sides it
Between, play the role of one to tilting pad (1) and axially and radially locates.
2. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
The arc radius at tilting pad (1) back side is less than watt frame (2) internal bore radius, to guarantee tilting pad (1) and watt frame
(2) swing can be generated for line contact.
3. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
The tilting-pad bearing further includes tile fragment locating pin (4)；
The tile fragment locating pin (4) passes through watt frame (2) and gos deep into the back of tilting pad (1), playing one to tilting pad (1)
Circumferentially positioned effect.
4. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
The nozzle (3) passes through the bleed screw drift bolt hole (2-2) on watt frame (2) by bleed screw (5), so that nozzle (3)
It is fixed at a watt frame (2) inner hole, the arc radius R at nozzle (3) back is consistent with a watt frame (2) internal bore radius.
5. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
Three spray-holes (3-2) are arranged in each nozzle (3), and two sides of each nozzle (3) are equipped with craft thread hole (3-
3)。
6. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
The gross area of the front end spray-hole of three nozzles is less than the bearing oil inlet gross area, and is axially evenly arranged.
7. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
Unilateral gap △ S between (3) two sides of nozzle and adjacent tilting pad (1) is more than or equal to 1mm.
8. a kind of tilting-pad bearing according to claim 1, it is characterised in that:
Plane where the spray-hole (3-2) of nozzle (3) will be lower than oil blocking ring (7) inner hole plane at least 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821840176.8U CN209370280U (en) | 2018-11-09 | 2018-11-09 | A kind of tilting-pad bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821840176.8U CN209370280U (en) | 2018-11-09 | 2018-11-09 | A kind of tilting-pad bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370280U true CN209370280U (en) | 2019-09-10 |
Family
ID=67836343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821840176.8U Active CN209370280U (en) | 2018-11-09 | 2018-11-09 | A kind of tilting-pad bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209370280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120506A (en) * | 2020-01-21 | 2020-05-08 | 河北工程大学 | Double-pivot sliding bearing |
| CN114483766A (en) * | 2022-03-09 | 2022-05-13 | 中国船舶重工集团公司第七0三研究所 | Novel tilting pad supporting bearing structure with oil nozzle |
-
2018
- 2018-11-09 CN CN201821840176.8U patent/CN209370280U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120506A (en) * | 2020-01-21 | 2020-05-08 | 河北工程大学 | Double-pivot sliding bearing |
| CN111120506B (en) * | 2020-01-21 | 2021-11-23 | 河北工程大学 | Double-pivot sliding bearing |
| CN114483766A (en) * | 2022-03-09 | 2022-05-13 | 中国船舶重工集团公司第七0三研究所 | Novel tilting pad supporting bearing structure with oil nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200616 Address after: No. 187-3, Honghui Road, Yuhong District, Shenyang, Liaoning 110000 Patentee after: Shenyang Borui turbine technical service Co., Ltd Address before: 110000 Unit 2, Building 19, Yuefeng Jindi, Yalu Jiangxi Street, Beita Street, Huanggu District, Shenyang City, Liaoning Province Patentee before: Wang Libo |