CN108561435B - Combined split sliding bearing for supporting pull rod rotor - Google Patents
Combined split sliding bearing for supporting pull rod rotor Download PDFInfo
- Publication number
- CN108561435B CN108561435B CN201810056224.2A CN201810056224A CN108561435B CN 108561435 B CN108561435 B CN 108561435B CN 201810056224 A CN201810056224 A CN 201810056224A CN 108561435 B CN108561435 B CN 108561435B
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- Prior art keywords
- bearing seat
- bearing
- bush
- oil
- annular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Abstract
The invention discloses a combined split sliding bearing for supporting a pull rod rotor, which comprises a bearing seat assembly, a bearing bush and a floating seal ring, wherein the bearing bush is arranged on the bearing seat assembly; the bearing bush is arranged in the bearing seat assembly, and floating seal rings are arranged at two ends of the bearing bush in the bearing seat assembly; the bearing block assembly comprises a bearing block outer body and a bearing block inner body, the bearing block outer body and the bearing block inner body are in a semi-annular shape, openings of the two bearing block inner bodies are symmetrically arranged to form an inner bearing block, and openings of the two bearing block outer bodies are symmetrically arranged to form an outer bearing block; the outer bearing seat is sleeved outside the inner bearing seat; the bearing bush and the floating seal ring are arranged on the inner side of the inner bearing block; the bearing seat outer body and the bearing seat inner body are tightly matched to form the closed oil groove, a lubricating mode of single-hole oil supply and two-side lubrication can be realized by depending on the structure of the bearing seat, the design is ingenious and reasonable, cold oil is supplied fully, the lubricating performance is good, oil return is rapid, and the installation is convenient.
Description
Technical Field
The invention belongs to the field of sliding bearings, and particularly relates to a combined split sliding bearing for supporting a pull rod rotor.
Background
The sliding bearing works stably, reliably and noiselessly, when the sliding bearing works, a layer of thin oil film is required to be arranged between the bearing bush and the rotating shaft for lubricating, the sliding surface is separated by lubricating oil without direct contact, the friction loss and the surface abrasion can be greatly reduced, and the oil film also has certain vibration absorption capacity. When the bearing is directly lubricated, cold oil can quickly enter the bearing bush, so that the temperature of the bearing bush and the journal is reduced.
On one hand, when the sliding bearing works, friction is generated due to the contact between a shaft neck and a bearing bush, if cold oil is not sufficiently supplied, or the oil is not quickly returned by hot oil under the condition of circulating pressure oil supply, the surface is heated and abraded, and the friction is seized; on the other hand, when the pull rod rotor rotates at a high speed, lubricating oil is adsorbed on the surface of the shaft neck, under the condition, the lubricating oil splashes in the bearing and overflows to the two ends of the bearing, the lubricating oil is accumulated at the position of the oil seal to generate positive pressure, and when the positive pressure value is greater than the sealing positive pressure value of the oil seal, the oil seal leaks oil.
Disclosure of Invention
The present invention aims to solve the above problems by providing a combined split sliding bearing supporting a drawbar rotor.
In order to achieve the purpose, the invention adopts the following technical scheme:
a combined split sliding bearing for supporting a pull rod rotor comprises a bearing seat assembly, a bearing bush and a floating seal ring; the bearing bush is arranged in the bearing seat assembly, and floating seal rings are arranged at two ends of the bearing bush in the bearing seat assembly; the bearing block assembly comprises a bearing block outer body and a bearing block inner body, the bearing block outer body and the bearing block inner body are in a semi-annular shape, openings of the two bearing block inner bodies are symmetrically arranged to form an inner bearing block, and openings of the two bearing block outer bodies are symmetrically arranged to form an outer bearing block; the outer bearing seat is sleeved outside the inner bearing seat; the bearing bush and the floating seal ring are arranged on the inner side of the inner bearing block;
the end face of the inner bearing seat is provided with a first oil inlet, the annular surface of the inner bearing seat is provided with an annular oil groove along the circumferential direction, and the first oil inlet is communicated with the annular oil groove; two second oil inlets are formed in the bottom of the annular oil groove at intervals of 180 degrees along the circumferential direction, two bearing bush oil inlets are formed in the bearing bush along the circumferential direction, and the bearing bush oil inlets are communicated with the second oil inlets.
Furthermore, an annular groove is formed in the middle of the inner side wall of the inner bearing seat, and the bearing bush is clamped in the annular groove; and annular grooves are formed in the inner side walls of the inner bearing seats on two sides of the annular groove, and the floating seal rings are arranged in the annular grooves.
Furthermore, a gap for floating the floating seal ring is arranged between the floating seal ring and the annular groove in the radial direction and the axial direction, and the size of the gap is 0.5-1mm in the radial direction and 0.5-1mm in the axial direction.
Furthermore, the inner side wall of the outer bearing seat is provided with a groove matched with the inner bearing seat, a pin is adopted between the inner bearing seat and the outer bearing seat for circumferential positioning, and the inner bearing seat and the outer bearing seat are radially fixed through screws.
Furthermore, the edge of the inner bearing seat is provided with a chamfer; the edge of the outer bearing seat is provided with a flange for mounting to the bearing outer housing.
Further, oil unloading grooves are formed in the inner bearing seat and the outer bearing seat.
Compared with the prior art, the invention has the following technical effects:
the bearing seat outer body and the bearing seat inner body are tightly matched to form the closed oil groove, a lubricating mode of single-hole oil supply and two-side lubrication can be realized by depending on the structure of the bearing seat, the design is ingenious and reasonable, cold oil is supplied fully, the lubricating performance is good, oil return is rapid, and the installation is convenient.
The floating seal ring used by the invention can automatically maintain the centering with the shaft center, thereby greatly reducing the gap amount, effectively realizing the sealing of oil leakage and having remarkable sealing effect.
Drawings
Fig. 1 is an assembly view of the split sliding bearing.
FIG. 2 is a cross-sectional view of the split sliding bearing
Fig. 3 is an oil passage diagram of the split type sliding bearing.
Fig. 4 is a schematic structural view of the split sliding bearing in a direction perpendicular to the joint surface.
Wherein: 1. a bearing seat outer body; 2. a bearing seat inner body; 3. a floating seal ring; 4. bearing bushes; 21. a second oil inlet hole; 23. chamfering; 24. oil discharge grooves; 25. an annular groove; 26. an annular oil groove; 27. a first oil inlet hole; 28. an annular groove; 41. and (4) bearing bush oil inlet holes.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1-4, a combined split sliding bearing for supporting a pull rod rotor includes a bearing seat assembly, a bearing bush 4 and a floating seal ring 3; the bearing bush 4 is arranged in the bearing seat assembly, and the two ends of the bearing bush 4 in the bearing seat assembly are provided with the floating seal rings 3; the bearing block assembly comprises a bearing block outer body 1 and a bearing block inner body 2, the bearing block outer body 1 and the bearing block inner body 2 are both semi-annular, the openings of the two bearing block inner bodies 2 are symmetrically arranged to form an inner bearing block, and the openings of the two bearing block outer bodies 1 are symmetrically arranged to form an outer bearing block; the outer bearing seat is sleeved outside the inner bearing seat; the bearing bush 4 and the floating seal ring 3 are both arranged on the inner side of the inner bearing seat;
a first oil inlet hole 27 is formed in the end face of the inner bearing seat, an annular oil groove 26 is formed in the annular surface of the inner bearing seat along the circumferential direction, and the first oil inlet hole 27 is communicated with the annular oil groove 26; two second oil inlet holes 21 are formed in the bottom of the annular oil groove 26 at intervals of 180 degrees in the circumferential direction, two bearing bush oil inlet holes 41 are formed in the bearing bush 4 in the circumferential direction, and the bearing bush oil inlet holes 41 are communicated with the second oil inlet holes 21.
An annular groove 28 is formed in the middle of the inner side wall of the inner bearing seat, and the bearing bush 4 is clamped in the annular groove 28; an annular groove 25 is arranged on the inner side wall of the inner bearing seat at two sides of the annular groove 28, and the floating seal ring 3 is arranged in the annular groove 25.
And a clearance for floating the floating seal ring 3 is arranged between the floating seal ring 3 and the annular groove 25 in the radial direction and the axial direction, and the size of the clearance is 0.5-1mm in the radial direction and 0.5-1mm in the axial direction.
Be provided with on the inside wall of outer bearing frame with inner bearing frame assorted recess, adopt the pin to carry out circumference location between inner bearing frame and the outer bearing frame, radially pass through the fix with screw.
The edge of the inner bearing seat is provided with a chamfer 23; the edge of the outer bearing seat is provided with a flange for mounting to the bearing outer housing.
Oil discharge grooves 24 are formed in the inner bearing seat and the outer bearing seat.
The side of the bearing seat inner body 2 is provided with a chamfer 23 so as to be conveniently installed in a groove of the bearing seat outer body 1, and the bearing seat outer body 1 and a pin are adopted for circumferential positioning (located at the middle position of the body), so that the bearing seat inner body is effectively prevented from generating torsional motion in the bearing outer body.
The bearing block adopts a split design, so that the inner wall groove of the bearing block inner body 2 is conveniently processed, the closed oil groove 26 is formed by tightly matching the bearing block outer body 1 and the bearing block inner body 2, and the lubricating mode of single-hole oil supply and two-side lubrication can be realized by depending on the structure of the bearing block.
Claims (3)
1. A combined split sliding bearing for supporting a pull rod rotor is characterized by comprising a bearing seat assembly, a bearing bush (4) and a floating seal ring (3); the bearing bush (4) is arranged in the bearing seat assembly, and floating seal rings (3) are arranged at two ends of the bearing bush (4) in the bearing seat assembly; the bearing seat assembly comprises a bearing seat outer body (1) and a bearing seat inner body (2), the bearing seat outer body (1) and the bearing seat inner body (2) are semi-annular, and openings of the two bearing seat inner bodies (2) which are vertically arranged are oppositely arranged to form an inner bearing seat; the openings of the two bearing seat outer bodies (1) are oppositely arranged to form an outer bearing seat; the outer bearing seat is sleeved outside the inner bearing seat; the bearing bush (4) and the floating seal ring (3) are arranged on the inner side of the inner bearing seat;
a first oil inlet hole (27) is formed in the end face of one side of the upper bearing seat inner body (2), an annular oil groove (26) is formed in the annular outer side wall of the inner bearing seat along the circumferential direction, the bearing seat outer body and the bearing seat inner body are tightly matched to form a closed oil groove, and the first oil inlet hole (27) is communicated with the annular oil groove (26) through a communicating hole; two second oil inlet holes (21) are horizontally formed in the bottom of the annular oil groove (26) at intervals of 180 degrees along the circumferential direction, two bearing bush oil inlet holes (41) are formed in the bearing bush (4) along the circumferential direction, and the bearing bush oil inlet holes (41) are communicated with the second oil inlet holes (21);
an annular groove (28) is formed in the middle of the annular inner side wall of the inner bearing seat, and the bearing bush (4) is clamped in the annular groove (28); an annular groove (25) is formed in the inner side wall of the inner bearing seat on two sides of the annular groove (28), and the floating sealing ring (3) is arranged in the annular groove (25);
the bottom of the inner bearing seat and the bottom of the outer bearing seat are both provided with oil discharge grooves (24) which are communicated with each other; a gap for floating the floating seal ring (3) is arranged between the floating seal ring (3) and the annular groove (25) in the radial and axial directions, and the size of the gap is 0.5-1mm in the radial direction and 0.5-1mm in the axial direction.
2. The split sliding bearing as claimed in claim 1, wherein the inner side wall of the outer bearing seat has a groove matching with the inner bearing seat, and the inner bearing seat and the outer bearing seat are circumferentially positioned by pins and radially fixed by screws.
3. A composite split sliding bearing supporting a pull rod rotor according to claim 1, wherein the edge of the inner bearing seat is provided with a chamfer (23); the edge of the outer bearing seat is provided with a flange for mounting to the bearing outer housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810056224.2A CN108561435B (en) | 2018-01-20 | 2018-01-20 | Combined split sliding bearing for supporting pull rod rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810056224.2A CN108561435B (en) | 2018-01-20 | 2018-01-20 | Combined split sliding bearing for supporting pull rod rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108561435A CN108561435A (en) | 2018-09-21 |
| CN108561435B true CN108561435B (en) | 2021-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810056224.2A Active CN108561435B (en) | 2018-01-20 | 2018-01-20 | Combined split sliding bearing for supporting pull rod rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108561435B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236861B (en) * | 2018-10-09 | 2023-12-22 | 中国船舶重工集团公司第七0三研究所 | Light-load sliding bearing |
| CN109237026A (en) * | 2018-11-08 | 2019-01-18 | 周琦人 | Air compressor shaft end reduced pressure sealing structure |
| CN111946746A (en) * | 2019-08-22 | 2020-11-17 | 乐清市华尊电气有限公司 | Lubricating oil self-circulation type sliding bearing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2351431A (en) * | 1942-05-16 | 1944-06-13 | Gen Electric | Shaft bearing |
| CA952954A (en) * | 1971-08-10 | 1974-08-13 | Hatch Associates Ltd. | Journal bearing |
| JPS62140219U (en) * | 1986-02-27 | 1987-09-04 | ||
| DE20013684U1 (en) * | 2000-08-09 | 2000-11-23 | Neuendorf Peter | Adjustable and adjustable slide bearing |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250846Y (en) * | 2008-09-01 | 2009-06-03 | 江苏华阳重工科技股份有限公司 | Large specific pressure neck bearing for ship |
| CN201771980U (en) * | 2010-08-26 | 2011-03-23 | 北京中冶设备研究设计总院有限公司 | Water-cooled sliding bearing seat |
| CN201953818U (en) * | 2010-12-20 | 2011-08-31 | 无锡润鹏复合新材料有限公司 | Self-lubricating sliding bearing |
| CN102042337A (en) * | 2010-12-20 | 2011-05-04 | 无锡润鹏复合新材料有限公司 | Self-lubricating sliding bearing |
| CN201884473U (en) * | 2010-12-22 | 2011-06-29 | 王金领 | Split type rolling bearing for connecting rod neck of crank shaft |
| CN202612387U (en) * | 2012-04-20 | 2012-12-19 | 新疆八一钢铁股份有限公司 | Split self-aligning sliding bearing |
| CN203374652U (en) * | 2013-07-29 | 2014-01-01 | 湖南崇德工业科技有限公司 | Sliding bearing bush with axial thrust surface |
| CN105333003B (en) * | 2014-08-04 | 2018-10-19 | 威乐(中国)水泵系统有限公司 | Helicla flute sliding bearing and centrifugal pump |
| CN204628294U (en) * | 2015-04-27 | 2015-09-09 | 嘉善新易能精密机械设备厂 | Plain bearing arrangement |
| CN204755604U (en) * | 2015-06-29 | 2015-11-11 | 申科滑动轴承股份有限公司 | Floating seal end cover for slide bearing |
| CN105605097A (en) * | 2015-12-16 | 2016-05-25 | 上海大学 | Mechanically-adjustable-clearance semi-active radial sliding bearing |
| CN206187874U (en) * | 2016-11-22 | 2017-05-24 | 台州恒投工贸有限公司 | Purpose -built slip slewing bearing |
-
2018
- 2018-01-20 CN CN201810056224.2A patent/CN108561435B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2351431A (en) * | 1942-05-16 | 1944-06-13 | Gen Electric | Shaft bearing |
| CA952954A (en) * | 1971-08-10 | 1974-08-13 | Hatch Associates Ltd. | Journal bearing |
| JPS62140219U (en) * | 1986-02-27 | 1987-09-04 | ||
| DE20013684U1 (en) * | 2000-08-09 | 2000-11-23 | Neuendorf Peter | Adjustable and adjustable slide bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108561435A (en) | 2018-09-21 |
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