CN112196891A - Self-adjustable tilting pad thrust bearing - Google Patents
Self-adjustable tilting pad thrust bearing Download PDFInfo
- Publication number
- CN112196891A CN112196891A CN202010963322.1A CN202010963322A CN112196891A CN 112196891 A CN112196891 A CN 112196891A CN 202010963322 A CN202010963322 A CN 202010963322A CN 112196891 A CN112196891 A CN 112196891A
- Authority
- CN
- China
- Prior art keywords
- pad
- bearing
- tile
- thrust
- tiles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000897 Babbitt (metal) Inorganic materials 0.000 claims description 3
- 239000012634 fragment Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 7
- 238000005461 lubrication Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/06—Sliding-contact bearings for exclusively rotary movement for axial load only with tiltably-supported segments, e.g. Michell bearings
-
- 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
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
- F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep 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
- 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
-
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/1045—Details of supply of the liquid to the bearing
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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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The self-adjustable tilting pad thrust bearing comprises a bearing shell and a plurality of pad blocks, wherein the bearing shell comprises two semicircular pad bodies, the two semicircular pad bodies are connected through bolts, the pad blocks are uniformly distributed on one side or two sides of the bearing shell, and the cross section of each pad block is in a fan-ring shape; in conclusion, the bearing thrust pad has reasonable design, the pad does not need other fixing devices, the structure of the traditional thrust bearing is simplified, the pad surface is not easy to deform, the abrasion of the supporting position is reduced, the operation noise is reduced, the bearing capacity is enhanced, when the bearing thrust pad is stressed unevenly, the thrust pad can flexibly swing back and forth like a seesaw, and finally the effect that the bearing can be automatically adjusted under different working conditions is achieved.
Description
Technical Field
The invention belongs to the technical field of bearing design and manufacture, and particularly relates to a self-adjustable tilting pad thrust bearing.
Background
The bearing is a core lubrication bearing part of various rotating machines, and has a vital influence on the performance indexes of the whole system, such as bearing capacity, friction power consumption, service life, running stability and the like. The bearings are various in types and complex in classification, and can be divided into rolling bearings and sliding bearings according to the movement mode, thrust bearings and radial bearings according to the relative position of the operation direction and the bearing force direction, and oil lubrication, water lubrication, gas lubrication, dry friction self-lubricating bearings and the like according to the type of a lubricant, so the industrial background of the application field of the bearings needs to be considered in bearing design and performance evaluation; at present, the axial thrust bearing causes serious deformation of a bearing bush surface under the action of unbalance loading, and is easy to have faults of abrasion, peeling, layering, noise and the like; the tile and the bearing shell need a fixing device to fix the tile, so that the processing difficulty is high, the use is complex, and the dynamic performance is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a self-adjustable tilting pad thrust bearing, which overcomes the defects of complex structure, difficulty in fixing and poor dynamic performance of the traditional pad through structural design, is reasonable in design, does not need other fixing devices for the pad, simplifies the structure of the traditional thrust bearing, is not easy to deform a pad surface, reduces the abrasion of a supporting position, reduces the running noise, and enhances the bearing capacity, and when the thrust pad of the bearing is stressed unevenly, the thrust pad can flexibly swing back and forth like a seesaw, so that the effect that the bearing can be automatically adjusted under different working conditions is finally achieved.
In order to solve the technical problems, the invention adopts the following technical scheme: the self-adjustable tilting pad thrust bearing comprises a bearing shell and a plurality of pads, wherein the bearing shell comprises two semicircular pads which are connected through bolts, the pads are uniformly distributed on one side or two sides of the bearing shell, the cross section of each pad is in a fan ring shape, a Babbitt metal layer is arranged on the front side of each pad, a convex post surface is arranged on the back side of each pad, a plurality of groove surfaces are arranged on the inner side of each pad, the pads are arranged in the groove surfaces, the bearing shell fixedly supports the pads through the convex post surfaces and the groove surfaces on the back side of each pad, the convex post surfaces of the pads are in contact with the groove surfaces of the pads, and the curvature radius of the groove surfaces of the pads is larger than that of the convex post surfaces of the pads; all be provided with a plurality of inlet ports on two tile bodies, every inlet port is located between two adjacent tile fragments.
By adopting the technical scheme, the invention has the following beneficial effects: when the thrust bearing is installed, the convex column surface on the back surface of the pad is fixed on the groove surface on the bearing shell, so that the structure of the thrust bearing is optimized, and the pad is more convenient to install and fix; this device carries out the during operation, and the inlet port begins the fuel feeding, because the structural design of this device, the cylinder contact that tile piece and bearing housing are different through two curvature radii, so can form the squeeze film at the both sides of the position of bearing housing and tile piece contact, lubricating oil not only plays the lubrication action, also has certain damping effect, when the rotor takes place the slope, tile piece follow-up slope, the tile piece will automatic adjustment, ensure thrust surface good contact, thereby the dynamic behavior of bearing has been optimized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a pad;
FIG. 3 is a perspective view of a pad;
FIG. 4 is a schematic structural view of a bearing housing;
FIG. 5 is a cross-sectional view of the present invention;
FIG. 6 is a cross-sectional view of the pad and bearing housing interface.
Detailed Description
As shown in fig. 1-6, the self-adjustable tilting pad thrust bearing of the present invention comprises a bearing housing 1 and a plurality of pads 2, wherein the bearing housing 1 comprises two semicircular pads 3, the two semicircular pads 3 are connected by bolts, the plurality of pads 2 are uniformly distributed on a single side or double sides of the bearing housing 1, the cross section of the pads 2 is in a fan-ring shape, the front surface of the pads 2 is provided with a babbitt metal layer 4, the back surface of the pads 2 is provided with a convex post surface 5, the inner side surface of the pads 3 is provided with a plurality of groove surfaces 6, the pads 2 are installed in the groove surfaces 6, the bearing housing 1 fixedly supports the pads 2 by the convex post surface 5 and the groove surfaces 6 on the back surface of the pads 2, the convex post surface 5 of the pads 2 is in contact with the groove surfaces 6 of the pads 3, the curvature radius of the groove surfaces 6 of the pads 3 is greater than that of the convex post surface 5 of the pads 2, the front surface of the pads 2 forms a ring-shaped babbitt, the axial thrust surface on the rotor is contacted with the thrust plane formed by the pads 2; according to the requirement of a specific shaft, a double-side thrust bearing or a single-side bearing can be selected; all be provided with a plurality of inlet ports 7 on two tile bodies 3, every inlet port 7 is located between two adjacent tile 2.
The invention mainly comprises a bearing shell 1 and a plurality of pads 2, wherein a plurality of oil inlets 7 are respectively arranged on two pads 3, when the bearing works, the oil inlets 7 start to supply oil, the oil can enter the bearing, and the rotor can incline when working to drive the pads 2 to deviate, and a certain extrusion oil film can be formed between the convex column surface 5 on the back surface of the pads 2 and the groove surface 6 on the bearing shell 1 due to the existence of lubricating oil between the convex column surface and the groove surface, and the oil film has a certain damping effect on the adjustment of the pads 2, thereby optimizing the dynamic performance of the rotor.
The number of the pads 2 is eight in this embodiment, and in the specific bearing design, the number of the pads 2 can be designed differently according to the design.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (1)
1. Tilting pad thrust bearing that can adjust by oneself, its characterized in that: the bearing comprises a bearing shell and a plurality of tiles, wherein the bearing shell comprises two semicircular tiles which are connected through bolts, the tiles are uniformly distributed on one side or two sides of the bearing shell, the cross section of each tile is in a sector ring shape, a Babbitt metal layer is arranged on the front side of each tile, a convex column surface is arranged on the back side of each tile, a plurality of groove surfaces are arranged on the inner side surface of each tile, the tiles are arranged in the groove surfaces, the bearing shell fixedly supports the tiles through the convex column surfaces and the groove surfaces on the back side of each tile, the convex column surfaces of the tiles are in contact with the groove surfaces of the tiles, and the curvature radius of the groove surfaces of the tiles is larger than that of each convex column surface of each tile; all be provided with a plurality of inlet ports on two tile bodies, every inlet port is located between two adjacent tile fragments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010963322.1A CN112196891A (en) | 2020-09-14 | 2020-09-14 | Self-adjustable tilting pad thrust bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010963322.1A CN112196891A (en) | 2020-09-14 | 2020-09-14 | Self-adjustable tilting pad thrust bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112196891A true CN112196891A (en) | 2021-01-08 |
Family
ID=74016287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010963322.1A Pending CN112196891A (en) | 2020-09-14 | 2020-09-14 | Self-adjustable tilting pad thrust bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196891A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635914A (en) * | 2022-03-29 | 2022-06-17 | 郑州机械研究所有限公司 | Axial double-layer duplex self-adjusting thrust bearing |
-
2020
- 2020-09-14 CN CN202010963322.1A patent/CN112196891A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635914A (en) * | 2022-03-29 | 2022-06-17 | 郑州机械研究所有限公司 | Axial double-layer duplex self-adjusting thrust bearing |
| CN114635914B (en) * | 2022-03-29 | 2022-12-13 | 郑州机械研究所有限公司 | Axial double-layer duplex self-adjusting thrust bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210108 |