CN111120505B - Thermal deformation resistant high-bearing-thrust sliding bearing with heating device - Google Patents
Thermal deformation resistant high-bearing-thrust sliding bearing with heating device Download PDFInfo
- Publication number
- CN111120505B CN111120505B CN201911381457.0A CN201911381457A CN111120505B CN 111120505 B CN111120505 B CN 111120505B CN 201911381457 A CN201911381457 A CN 201911381457A CN 111120505 B CN111120505 B CN 111120505B
- Authority
- CN
- China
- Prior art keywords
- bearing
- rotor
- tile
- pad
- heating wire
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000020169 heat generation Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000012634 fragment Substances 0.000 abstract description 6
- 238000005253 cladding Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 12
- 230000006872 improvement Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention discloses a thermal deformation resistant high-bearing thrust sliding bearing with a heating device, which comprises a thrust oil groove bottom plate, a tile block base, a bearing tile block, a bearing runner plate and a runner plate mounting flange, wherein the thrust oil groove bottom plate, the tile block base, the bearing tile block, the bearing runner plate and the runner plate mounting flange are sequentially sleeved outside a rotor; the bearing runner plate is connected with the runner plate mounting flange, the runner plate mounting flange is assembled with the rotor and positioned and mounted through a shaft shoulder on the rotor; the bottoms of the bearing pads are uniformly distributed and fixed on the pad base in the circumferential direction through pad supporting screws respectively, and are not in contact with the rotor, and gaps are reserved between the bearing mirror plates and the bearing pads; the upper surface at thrust oil groove bottom plate is fixed to the tile fragment base, is equipped with sealing device between tile fragment base and rotor and thrust oil groove bottom plate and the rotor, and every bearing tile fragment is close to bottom surface department and all is equipped with the heating wire, and the surperficial cladding of heating wire has insulating material. The heating device is arranged at the position, close to the bottom surface, of the pad, so that the temperatures of the upper surface and the lower surface of the thrust bearing pad are kept consistent.
Description
Technical Field
The invention belongs to the field of sliding bearing design, and particularly relates to a thermal deformation resistant high-bearing-thrust sliding bearing with a heating device.
Background
The sliding bearing has the advantages of large bearing capacity, stable work, high reliability, low noise, long service life and the like, is a core component for bearing axial load in large-scale rotating units such as water turbines, steam turbines, ship propulsion shafting and the like, and has decisive influence on the performance of related equipment. As rotary machines are developed toward high rotational speeds and heavy loads, the problem of how to improve the reliability, stability, etc. of thrust bearings has received a great deal of attention from engineering technicians. For large thrust sliding bearings, the most prominent problem in industrial applications is the thermal deformation of the bearing. Under the working conditions of high load and high rotating speed of the large thrust bearing, a large amount of friction heat is generated by the relative movement of the tile and the mirror plate. However, the heat conduction rate of the bearing pad is limited, so that the temperature distribution of the bearing pad is not uniform, the thermal expansion of the bearing part is not uniform, and the abnormal phenomena of downward bending of the edge of the bearing pad and protrusion of the middle part of the bearing are formed. Typically, thermal deformation results in a reduction in the effective bearing area of the bearing pad, and a reduction in bearing capacity and lubrication. But the accidents of abrasion, rubbing damage, tile burning and the like of the tile and the bearing mirror plate are very easily caused under the working condition of high load.
At present, no perfect measure for reducing the thermal deformation of the bearing exists in the industry, and the existing design idea is to increase the number of the pads and increase the areas of the bearing bush and the bearing runner plate, so as to reduce the adverse effect caused by the thermal deformation and ensure that the bearing has stable bearing capacity. However, the method is difficult to implement and limited by the structural design of the equipment, and the increased size of the bearing causes oil stirring loss and increased running cost, so that the method has poor effect. In summary, it is very desirable to provide a method for overcoming thermal deformation of a large thrust bearing.
Disclosure of Invention
The invention aims to provide a thermal deformation resistant high-bearing thrust sliding bearing with a heating device, which is characterized in that the heating device is arranged at the position, close to the bottom surface, of a pad block, so that the temperatures of the upper surface and the lower surface of the thrust bearing pad block are kept consistent, the thermal deformation of the upper surface and the lower surface is counteracted, the thermal deformation of the bearing pad block is reduced, the lubricating performance and the bearing capacity of the bearing are hopefully improved, and the problems of bearing abrasion, gluing, tile burning and the like are avoided.
The invention is realized by adopting the following technical scheme:
a kind of high thrust sliding bearing of load-bearing of thermal deformation resistance with heating device, including the thrust oil groove bottom plate, tile base, bearing tile, bearing runner plate and runner plate mounting flange that suit in the rotor sequentially; wherein,
the bearing runner plate is connected with the runner plate mounting flange, the runner plate mounting flange is assembled with the rotor and positioned and mounted through a shaft shoulder on the rotor; the bottoms of the bearing pads are uniformly distributed and fixed on the pad base in the circumferential direction through pad supporting screws respectively, and are not in contact with the rotor, and gaps are reserved between the bearing mirror plates and the bearing pads; the upper surface at thrust oil groove bottom plate is fixed to the tile fragment base, is equipped with sealing device between tile fragment base and rotor and thrust oil groove bottom plate and the rotor, and every bearing tile fragment is close to bottom surface department and all is equipped with the heating wire, and the surperficial cladding of heating wire has insulating material.
The invention is further improved in that the number of the bearing blocks is 4-16.
The present invention is further improved in that the distance between the central surface of the heating wire and the bottom surface of the bearing pad is A, and the value of the distance A is 1/6-1/3 of the thickness B of the pad, when viewed from the thickness direction of the bearing pad.
The invention is further improved in that the radius value R05 of the electric heating wire ranges from 1.5mm to 3mm, and the radius value R05 is in positive correlation with the thickness B of the tile and the wrap angle alpha of the tile.
The further improvement of the invention is that the number of turns of the electric heating wire is defined as the number of arcs on the shape of the electric heating wire 10, the value range of the number of turns of the electric heating wire is 5-30 turns, the specific value is designed according to the tile wrap angle alpha of the bearing tile, and the requirement that the angle is 2 degrees < alpha <10 degrees is met.
The further improvement of the invention is that the included angle between the electric heating wires 10 close to the two side faces of the bearing tile block is beta, the included angle beta is 2-5 degrees different from the wrap angle alpha of the tile block, and the included angle beta is in negative correlation with the turn number of the electric heating wires.
The invention has the further improvement that one side of the electric heating wire, which is close to the inner diameter of the bearing pad block, is provided with a plurality of arcs with equal radius which are uniformly distributed, and each arc is tangent to an arc with the radius value of R02 and concentric with the inner diameter of the bearing pad block; the difference between the radius value R02 and the inner diameter R01 of the tile is 15-30 degrees, and the difference between the radius value R02 and the inner diameter R01 of the tile is in negative correlation with the number of turns of the heating wire.
The invention has the further improvement that the shape of one side of the electric heating wire close to the outer diameter of the bearing pad is divided into two parts, the inner side is provided with a plurality of arcs with equal radius which are uniformly distributed, and each arc is tangent with an arc with the radius value of R03 and concentric with the inner diameter of the bearing pad; the difference between the radius value R03 and the tile outer diameter R04 is 15-30 degrees, and the difference between the radius value R03 and the tile outer diameter R04 is in negative correlation with the number of turns of the heating wire; two electric heating wires with an included angle beta are arranged on the outer side of the bearing tile, and a power supply is led out from one side of the outer diameter of the bearing tile; the included angle between two heating wires in the same circle is theta, and the product of the included angle theta and the number of turns of the heating wires is the included angle beta.
The invention has the further improvement that when the synchronous driving device works, the power source drives the rotor to rotate through transmission, the mounting flange of the mirror plate is positioned and fixed on the rotor through the shaft shoulder, so as to drive the bearing mirror plate to rotate synchronously, and the rotor bears the load downwards along the axial direction; the inner and outer diameters of the bearing mirror plate and the bearing tile are the same, and a gap exists between the bearing mirror plate and the bearing tile, and an oil film is formed when the rotor drives the bearing mirror plate to rotate to bear the downward load along the axial direction; along with the increase of the load borne by the rotor, the bearing mirror plate moves downwards along the axial direction, the gap between the bearing mirror plate and the bearing tile block is reduced, the thickness of an oil film is reduced, the bearing carrying capacity is increased, the heat generation of the bearing is increased, the temperature of the upper surface of the bearing tile block is higher than that of the lower surface of the bearing tile block, and the bearing tile block generates heat deformation; at the moment, the electric heating wire close to the lower surface of the bearing pad block is switched on to heat the lower part of the bearing pad block, so that the lower surface of the bearing pad block is also subjected to thermal deformation; after continuous heating, the temperatures of the upper surface and the lower surface of the bearing pad block tend to be consistent, and the thermal deformation of the upper surface and the lower surface is mutually counteracted, so that the thermal deformation of the bearing pad block is greatly reduced.
The invention has at least the following beneficial technical effects:
according to the thermal deformation resistant high-bearing-capacity thrust sliding bearing with the heating device, the lower part of the bearing pad is heated, so that the temperatures of the upper surface and the lower surface of the bearing tend to be consistent, the temperature difference between the upper surface and the lower surface of the bearing is reduced, the uniform thermal deformation distribution of the bearing pad is ensured, the flatness of the bearing pad surface is optimized, the problems of bearing capacity reduction, stability reduction and the like caused by thermal deformation of the bearing are solved, and the stable and reliable operation of the thrust sliding bearing is ensured. In summary, the present invention has the following advantages:
(1) compared with the traditional thrust sliding bearing, the thermal deformation resistant high-bearing-capacity thrust sliding bearing with the heating device provided by the invention only needs to modify the structure of the bearing block, does not need to change the external size of the bearing, and has a compact structure;
(2) the heating power is changed through the external control end, and the temperature of the lower end face of the bearing pad block can be controllably adjusted. According to the condition requirements of different working conditions, the temperature of the back side of the pad block is adjusted, and the temperature difference between the upper surface and the lower surface of the bearing bush under different working conditions can be guaranteed to be minimum, so that the bending deformation of the bearing bush caused by the thermal deformation of the bearing is improved, the bearing capacity of the bearing is improved, the thrust bearing and related equipment can stably and reliably operate, and the operation and maintenance cost of the equipment is reduced.
Drawings
Fig. 1 is a schematic view of the assembly of a tilting pad sliding bearing.
Fig. 2 is a top view of the bearing.
Fig. 3 is a schematic diagram of the distribution of the heating wires of the tiles.
Description of reference numerals:
1 is the rotor, 2 is mirror plate mounting flange, 3 is the bearing mirror plate, 4 is the bearing tile, 5 is the mirror plate mounting screw, 6 is tile supporting screw, 7 is thrust oil groove bottom plate, 8 is the tile base, 9 is base mounting screw, 10 is the heating wire, R01 is the tile internal diameter, R04 is the tile external diameter, alpha is the tile cornerite, beta is the bearing, theta is heating wire distribution angle, B is tile thickness, R02 is the inboard boundary radius of heating wire, R03 is the outside boundary radius of heating wire, R05 is the heating wire reserves mounting hole radius.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1 to fig. 3, the present invention provides a thermal deformation resistant high-load thrust sliding bearing with a heating device, which comprises a rotor 1, a bearing runner plate 3, a bearing pad 4, a pad support screw 6, a thrust oil groove bottom plate 7, a pad base 8 and a heating wire 10.
As shown in fig. 1 and 2, the bearing runner 3 is connected to the runner mounting flange 2 by runner mounting screws 5, and the runner mounting flange 2 is assembled with the rotor 1 and positioned and mounted by a shoulder on the rotor 1. The bottoms of the bearing pads 4 are uniformly distributed and fixed on a pad base 8 in the circumferential direction through pad supporting screws 6 and are not in contact with the rotor 1, a gap is reserved between the bearing mirror plate 3 and the bearing pads 4, and the number of the bearing pads 4 is selected from 4 to 16; the tile base 8 is fixed on the upper surface of the thrust oil groove bottom plate 7 through a base mounting screw 9, and sealing devices are arranged between the tile base 8 and the rotor 1 and between the thrust oil groove bottom plate 7 and the rotor 1 to prevent lubricating oil from leaking. Every bearing tile 4 of this thrust slide bearing is close to bottom surface department and all is equipped with heating wire 10, and the surface cladding of heating wire 10 has the good insulating material of one deck heat conductivility, prevents the heating wire electric leakage.
Referring to fig. 3, specific parameters of the bearing include: a pad inner diameter R01, a pad outer diameter R04, a pad wrap angle α, and a pad thickness B. The specific arrangement of the heating wire 10 is: the distance between the central plane of the heating wire 10 and the bottom surface of the bearing pad 4 is A when viewed from the thickness direction of the bearing pad, and the value of the distance A is 1/6-1/3 of the thickness B of the pad. The radius value R05 of the electric heating wire 10 ranges from 1.5mm to 3mm, and the radius value R05 is in positive correlation with the thickness B of the tile and the wrap angle alpha of the tile.
Looking down the direction, having arranged the heating wire 10 of a plurality of rings in the bearing tile 4, the number of turns of heating wire 10 is defined as the quantity of circular arc on the heating wire 10 shape, and the value range of heating wire number of turns is 5 ~ 30 circles, and the concrete value is designed according to the tile cornerite alpha of bearing tile 4, satisfies 2 ° < alpha < 10. The included angle between the electric heating wires 10 close to the two side faces of the bearing tile block 4 is beta, the included angle beta is 2-5 degrees different from the wrapping angle alpha of the tile block, and the included angle beta is in negative correlation with the number of turns of the electric heating wires 10. One side of the electric heating wire 10 close to the inner diameter of the bearing pad block 4 is provided with a plurality of arcs with equal radius which are uniformly distributed, and each arc is tangent to an arc with the radius value of R02 and concentric with the inner diameter of the bearing pad block 4; the difference between the radius value R02 and the inner diameter R01 of the tile is 15-30 degrees, and the difference between the radius value R02 and the inner diameter R01 of the tile is in negative correlation with the number of turns of the heating wire. Similarly, the shape of the electric heating wire 10 close to one side of the outer diameter of the bearing pad 4 is divided into two parts, the inner side is provided with a plurality of arcs with equal radius which are uniformly distributed, and each arc is tangent to an arc with the radius value of R03 and concentric with the inner diameter of the bearing pad 4; the difference between the radius value R03 and the tile outer diameter R04 is 15-30 degrees, and the difference between the radius value R03 and the tile outer diameter R04 is in negative correlation with the number of turns of the heating wire; two electric heating wires with an included angle beta are arranged on the outer side, and a power supply is led out from one side of the outer diameter of the bearing tile block 4. The included angle between two heating wires 10 in the same turn is theta, and the product of the included angle theta and the number of turns of the heating wires is the included angle beta.
The working process of the invention is as follows:
the power source drives the rotor 1 to rotate through transmission, the mirror plate mounting flange 2 is positioned and fixed on the rotor 1 through a shaft shoulder, then the bearing mirror plate 3 is driven to rotate synchronously, and the rotor 1 bears a load which is downward along the axial direction. The bearing runner plate 3 and the bearing pad 4 have the same inner and outer diameters and a certain gap, and the rotor 1 drives the bearing runner plate 3 to rotate so as to form an oil film and bear downward load along the axial direction.
As the load borne by the rotor 1 is increased, the bearing runner plate 3 moves downwards along the axial direction, the gap between the bearing runner plate 3 and the bearing pad 4 is reduced, the thickness of an oil film is reduced, the bearing carrying capacity is increased, so that the heat generation of the bearing is increased, the temperature of the upper surface of the bearing pad 4 is higher than that of the lower surface, and the bearing pad 4 is subjected to thermal deformation. At this time, the heating wire 10 close to the lower surface of the bearing pad 4 is powered on to heat the lower part of the bearing pad 4, so that the lower surface of the bearing pad 4 is also thermally deformed. After continuous heating, the temperatures of the upper surface and the lower surface of the bearing pad block 4 tend to be consistent, and the thermal deformations of the upper surface and the lower surface are mutually offset, so that the thermal deformation of the bearing pad block 4 is greatly reduced.
Claims (6)
1. A thermal deformation resistant high-bearing thrust sliding bearing with a heating device is characterized by comprising a thrust oil groove bottom plate (7), a tile block base (8), a bearing tile block (4), a bearing mirror plate (3) and a mirror plate mounting flange (2) which are sequentially sleeved outside a rotor (1); wherein,
the bearing runner plate (3) is connected with the runner plate mounting flange (2), the runner plate mounting flange (2) is assembled with the rotor (1), and the bearing runner plate is positioned and mounted through a shaft shoulder on the rotor (1); the bottoms of the bearing pads (4) are uniformly distributed and fixed on a pad base (8) in the circumferential direction through pad supporting screws (6) without contacting with the rotor (1), and gaps are reserved between the bearing mirror plates (3) and the bearing pads (4); the bearing shoe block comprises a shoe block base (8), a rotor (1), a thrust oil groove bottom plate (7), sealing devices, heating wires (10), insulating materials and a bearing shoe block base, wherein the shoe block base (8) is fixed on the upper surface of the thrust oil groove bottom plate (7), the sealing devices are arranged between the shoe block base (8) and the rotor (1) and between the thrust oil groove bottom plate (7) and the rotor (1), the heating wires (10) are arranged at positions, close to the bottom surface, of each bearing;
when viewed from the thickness direction of the bearing pad, the distance between the central plane of the electric heating wire (10) and the bottom surface of the bearing pad (4) is A, and the value of the distance A is 1/6-1/3 of the thickness B of the pad; the radius value R05 of the electric heating wire (10) ranges from 1.5mm to 3mm, and the radius value R05 is in positive correlation with the thickness B of the tile and the wrap angle alpha of the tile;
when the synchronous rotating device works, a power source drives the rotor (1) to rotate through transmission, the mirror plate mounting flange (2) is positioned and fixed on the rotor (1) through a shaft shoulder, so that the bearing mirror plate (3) is driven to rotate synchronously, and the rotor (1) bears a load downward along the axial direction; the inner diameter and the outer diameter of the bearing mirror plate (3) and the bearing pad block (4) are the same, and a gap exists between the bearing mirror plate and the bearing pad block, so that an oil film is formed when the rotor (1) drives the bearing mirror plate (3) to rotate, and the bearing mirror plate bears downward load along the axial direction; along with the increase of the load borne by the rotor (1), the bearing mirror plate (3) moves downwards along the axial direction, the gap between the bearing mirror plate (3) and the bearing pad block (4) is reduced, the thickness of an oil film is reduced, the bearing carrying capacity is increased, so that the heat generation of the bearing is increased, the temperature of the upper surface of the bearing pad block (4) is higher than that of the lower surface, and the bearing pad block (4) is subjected to thermal deformation; at the moment, the electric heating wire (10) which is close to the lower surface of the bearing pad block (4) is switched on to heat the lower part of the bearing pad block (4), so that the lower surface of the bearing pad block (4) is also subjected to thermal deformation; after continuous heating, the temperatures of the upper surface and the lower surface of the bearing pad block (4) tend to be consistent, and the thermal deformations of the upper surface and the lower surface are mutually offset, so that the thermal deformation of the bearing pad block (4) is greatly reduced.
2. The sliding bearing with heating device and high load-bearing thrust is characterized in that the number of bearing pads (4) is 4-16.
3. The sliding bearing with the heating device and the high bearing thrust is characterized in that the number of turns of the heating wire (10) is defined as the number of arcs on the shape of the heating wire (10), the number of turns of the heating wire ranges from 5 to 30 turns, and the specific value is designed according to the tile wrap angle alpha of the bearing tile (4), so that the requirement of 2 degrees < alpha <10 degrees is met.
4. A heat distortion resistant high thrust sliding bearing with heating means according to claim 1, characterized in that the angle between the heating wires 10 close to the two sides of the bearing pads (4) is β, the angle β differs from the pad wrap angle α by 2 ° to 5 °, the angle β is in negative correlation with the number of turns of the heating wires (10).
5. The sliding bearing with heating device and high load-bearing capacity against thermal deformation according to claim 1 is characterized in that the side of the heating wire (10) close to the inner diameter of the bearing pad (4) is a plurality of evenly distributed circular arcs with equal radius, each circular arc is tangent to a circular arc with radius value R02 and concentric with the inner diameter of the bearing pad (4); the difference between the radius value R02 and the inner diameter R01 of the tile is 15-30 degrees, and the difference between the radius value R02 and the inner diameter R01 of the tile is in negative correlation with the number of turns of the heating wire.
6. The sliding bearing with heating device and high load-bearing capacity against thermal deformation according to claim 1 is characterized in that the shape of the heating wire (10) near the outer diameter side of the bearing pad (4) is divided into two parts, the inner side is a plurality of evenly distributed circular arcs with equal radius, each circular arc is tangent to a circular arc with radius value R03 and concentric with the inner diameter of the bearing pad (4); the difference between the radius value R03 and the tile outer diameter R04 is 15-30 degrees, and the difference between the radius value R03 and the tile outer diameter R04 is in negative correlation with the number of turns of the heating wire; the outer sides of the two electric heating wires form an included angle beta, and a power supply is led out from one side of the outer diameter of the bearing pad block (4) and connected with the bearing pad block; the included angle of the two electric heating wires (10) in the same circle is theta, and the product of the included angle theta and the number of turns of the electric heating wires is the included angle beta.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381457.0A CN111120505B (en) | 2019-12-27 | 2019-12-27 | Thermal deformation resistant high-bearing-thrust sliding bearing with heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911381457.0A CN111120505B (en) | 2019-12-27 | 2019-12-27 | Thermal deformation resistant high-bearing-thrust sliding bearing with heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120505A CN111120505A (en) | 2020-05-08 |
| CN111120505B true CN111120505B (en) | 2021-03-23 |
Family
ID=70504909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911381457.0A Active CN111120505B (en) | 2019-12-27 | 2019-12-27 | Thermal deformation resistant high-bearing-thrust sliding bearing with heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120505B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2154217A1 (en) * | 1970-11-12 | 1972-05-18 | Westinghouse Electric Corp | Tilting pad bearings |
| CN1096084A (en) * | 1993-05-31 | 1994-12-07 | 隆昌祝 | Thrust-bearing |
| CN2839716Y (en) * | 2005-10-26 | 2006-11-22 | 吕鹏林 | A kind of with axis swing and adaptive plain thrust bearing |
| CN202790093U (en) * | 2012-07-06 | 2013-03-13 | 西安陕鼓动力股份有限公司 | Multi-oil wedge tilting pad radial bearing with adjustable rigidity |
| CN106438446A (en) * | 2016-10-27 | 2017-02-22 | 重庆通用工业(集团)有限责任公司 | Radial support bearing of centrifugal compressor |
| CN109322924A (en) * | 2018-08-10 | 2019-02-12 | 南京航空航天大学 | The intelligent sliding bearing and its control method of auto-control oil film thickness |
| CN110345165A (en) * | 2019-07-26 | 2019-10-18 | 西安交通大学 | A kind of bearing block that can be adjusted with active temperature |
-
2019
- 2019-12-27 CN CN201911381457.0A patent/CN111120505B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2154217A1 (en) * | 1970-11-12 | 1972-05-18 | Westinghouse Electric Corp | Tilting pad bearings |
| CN1096084A (en) * | 1993-05-31 | 1994-12-07 | 隆昌祝 | Thrust-bearing |
| CN2839716Y (en) * | 2005-10-26 | 2006-11-22 | 吕鹏林 | A kind of with axis swing and adaptive plain thrust bearing |
| CN202790093U (en) * | 2012-07-06 | 2013-03-13 | 西安陕鼓动力股份有限公司 | Multi-oil wedge tilting pad radial bearing with adjustable rigidity |
| CN106438446A (en) * | 2016-10-27 | 2017-02-22 | 重庆通用工业(集团)有限责任公司 | Radial support bearing of centrifugal compressor |
| CN109322924A (en) * | 2018-08-10 | 2019-02-12 | 南京航空航天大学 | The intelligent sliding bearing and its control method of auto-control oil film thickness |
| CN110345165A (en) * | 2019-07-26 | 2019-10-18 | 西安交通大学 | A kind of bearing block that can be adjusted with active temperature |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111120505A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2362921C2 (en) | Foil journal bearing | |
| US6752533B2 (en) | Foil thrust bearing cooling | |
| CN108286567B (en) | Thrust foil dynamic pressure air bearing with thick top foil structure | |
| US10274007B2 (en) | Hybrid dynamic pressure gas thrust bearing | |
| CN111120504A (en) | Self-feedback adjustment thermal deformation high-bearing thrust sliding bearing | |
| EP3299643B1 (en) | Mixed-type dynamic pressure gas radial bearing | |
| CN111120505B (en) | Thermal deformation resistant high-bearing-thrust sliding bearing with heating device | |
| CN102705364B (en) | Independent oil supply sliding bearing with changeable pads and compressor equipped with bearing | |
| CN201705934U (en) | Novel static ring structure of mechanical seal device | |
| CN109654228B (en) | Dry grinding mechanical seal assembly | |
| US4023866A (en) | Ice bearing | |
| CN102141151A (en) | Novel static-ring structure of mechanical sealing device | |
| CN215413215U (en) | Cold quick-witted integral type wheel of ring | |
| CN209925446U (en) | Can dismantle frizing device that reduces hot oil and carry dynamic pressure thrust bearing | |
| RU160032U1 (en) | SUPPORT ASSEMBLY | |
| CN114458689A (en) | Thrust foil gas bearing | |
| CN112196891A (en) | Self-adjustable tilting pad thrust bearing | |
| WO2018162925A1 (en) | Rotating machine and rotors for use therein | |
| CN219388168U (en) | Cooling system for air bearing | |
| CN220015811U (en) | Water lubrication thrust bearing installed in tail water power station of sewage plant | |
| CN112128236B (en) | Rolling-sliding radial-sliding thrust combined bearing | |
| CN220901639U (en) | Working roll rotary joint retaining seat component suitable for high-speed and high-heat environment | |
| CN220227514U (en) | Combined sliding bearing with function of hydraulically adjusting axial clearance | |
| CN216812507U (en) | Thrust foil gas bearing | |
| SU1295059A1 (en) | Plain thrust bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |