CN111075832A - Sliding bearing - Google Patents
Sliding bearing Download PDFInfo
- Publication number
- CN111075832A CN111075832A CN201911158590.XA CN201911158590A CN111075832A CN 111075832 A CN111075832 A CN 111075832A CN 201911158590 A CN201911158590 A CN 201911158590A CN 111075832 A CN111075832 A CN 111075832A
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- Prior art keywords
- bearing
- outer ring
- bearing outer
- ring
- inner ring
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- 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.)
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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
- F16C17/08—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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to the field of machinery, and relates to a sliding bearing which comprises a shell, a bearing inner ring, a bearing outer ring, a bearing cover, a lubricating water inlet and a sealing ring; the shell is integrally C-shaped; the bearing inner ring is arranged in the bearing outer ring and rotates around the axial direction of the bearing outer ring; the bearing outer ring is arranged in the shell and is fixed in the shell through a bearing cover; a sealing ring is arranged between the bearing outer ring and the shell; a lubricating water channel is arranged between the bearing inner ring and the bearing outer ring; the shell is provided with a lubricating water inlet communicated with the lubricating water channel. The invention provides a sliding bearing which can finish bearing lubrication by using trace water, can stably work for a long time and has low power consumption.
Description
Technical Field
The invention belongs to the field of machinery, relates to a sliding bearing, and particularly relates to a corrosion-resistant long-life sliding bearing under a dripping lubrication mixed friction condition.
Background
The bearings are generally lubricated by oil and grease; some bearings can be soaked in working fluid to run for a long time, such as the whole bearing is soaked in glycol solution, seawater and the like; the partial self-lubricating bearing can be subjected to dry friction under a light load in a short time. The space station urine water recovery system realizes the recovery of urine water by utilizing a mechanical vapor recompression technology and is used for sanitary water for astronauts. A Roots compressor for a urine treatment system is an important power part for realizing low-pressure water vapor delivery and pressurization of urine. The conveyed water vapor is acidic, and has the pH value of 3-5, so that the bearing of the Roots compressor is required to be resistant to corrosion; the bearings cannot be lubricated by oil or grease; the Roots compressor is a heat pump, and excessive lubricating media cannot damage the heat balance in the compressor; the bearings need to be maintained for a long time. At present, no bearing meeting the requirement exists.
Disclosure of Invention
In order to solve the above technical problems in the background art, the present invention provides a sliding bearing which can perform bearing lubrication using a minute amount of water, can operate stably for a long period of time, and has low power consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
a plain bearing characterized by: the sliding bearing comprises a shell, a bearing inner ring, a bearing outer ring, a bearing cover, a lubricating water inlet and a sealing ring; the shell is integrally C-shaped; the bearing inner ring is arranged in the bearing outer ring and rotates around the axial direction of the bearing outer ring; the bearing outer ring is arranged in the shell and is fixed in the shell through a bearing cover; a sealing ring is arranged between the bearing outer ring and the shell; a lubricating water channel is arranged between the bearing inner ring and the bearing outer ring; and the shell is provided with a lubricating water inlet communicated with the lubricating water channel.
The bearing inner ring is integrally in a T-shaped structure and comprises an inner ring thrust end and a connecting column connected with the inner ring thrust end; the bearing outer ring is integrally in a convex structure, an axial through hole is axially formed in the bearing outer ring, and the two ends of the bearing outer ring are respectively a bearing outer ring thrust end and a fixed end opposite to the bearing outer ring thrust end; the connecting column of the bearing inner ring extends into the axial through hole of the bearing outer ring; the inner ring thrust end of the bearing inner ring is stopped against the bearing outer ring thrust end of the bearing outer ring; the inner ring thrust end and the bearing outer ring thrust end form an axial friction pair; the lubricating water channel is arranged between the connecting column of the bearing inner ring and the axial through hole of the bearing outer ring; the bearing cover is respectively connected with the fixed end of the bearing outer ring and the shell.
The bearing inner ring is made of TC4 material, corrosion-resistant ceramic, polymer or high polymer material, and the surfaces of the thrust end of the inner ring and the connecting column are coated with coating layers; the coating layer is tungsten carbide.
The lubricating water channel comprises a first radial water through groove arranged on the inner surface of an axial through hole on the outer ring of the bearing, a second radial water through groove arranged on the outer surface of a connecting column on the inner ring of the bearing and a labyrinth ring groove arranged between the axial through hole and the connecting column; the lubricating water inlet is communicated with the second radial water passing groove through the first radial water passing groove and the labyrinth ring groove.
The bearing outer ring is made of a polymer PEEK material, a corrosion-resistant polymer or a corrosion-resistant high polymer material.
And a wave spring is arranged between the bearing cover and the fixed end of the bearing outer ring.
An adjusting gasket is arranged between the wave spring and the bearing cover.
The bearing cover is provided with a boss; a waist-shaped groove matched with the boss is formed in the end face of the fixed end of the bearing outer ring; the bearing cover is connected with the bearing outer ring through a boss and a waist-shaped groove.
The bearing inner ring is provided with a pin hole, and the pin hole is provided with a pin for connecting and transmitting torque.
The invention has the advantages that:
the invention provides a sliding bearing which comprises a shell, a bearing inner ring, a bearing outer ring, a bearing cover, a lubricating water inlet and a sealing ring, wherein the shell is provided with a bearing inner ring and a bearing outer ring; the shell is integrally C-shaped; the bearing inner ring is arranged in the bearing outer ring and rotates around the axial direction of the bearing outer ring; the bearing outer ring is arranged in the shell and is fixed in the shell through a bearing cover; a sealing ring is arranged between the bearing outer ring and the shell; a lubricating water channel is arranged between the bearing inner ring and the bearing outer ring; the shell is provided with a lubricating water inlet communicated with the lubricating water channel. According to the invention, through the arrangement of the flow channel, the lubrication of the bearing can be completed by a small amount of water, namely, the water is continuously dripped onto the sliding bearing, and the bearing can also run for a long service life in a water and dry mixing friction state; the bearing material is corrosion-resistant material, can normally use under the acid environment of guaranteeing pH3 ~ 5, can be used to the urine processing system with roots compressor slide bearing.
Drawings
FIG. 1 is a schematic structural view of a plain bearing provided by the present invention;
FIG. 2 is a schematic view of the construction of the inner race of the bearing employed in the present invention;
FIG. 3 is a schematic view of a bearing outer race employed in the present invention;
FIG. 4 is a schematic diagram of the right side view of the structure of FIG. 3;
FIG. 5 is a schematic left side view of the structure of FIG. 3;
FIG. 6 is a schematic view of a bearing cap (including a shim and a wave spring) used in the present invention;
wherein:
8-a rotor shaft; 9-bearing inner race; 91-pin holes; 92-inner race thrust end; 93-a coating layer; 94-second radial water trough; 10-a housing; 11-bearing outer race; 114-kidney shaped groove; 115-bearing outer race thrust end; 116-a first radial flume; 117-labyrinth ring grooves; 12-a sealing ring; 13-wave spring; 14-a bearing cap; 15-adjusting the shim; 16-lubricating water inlet; 17-a screw; 18-a pin; 19-clearance; 20-boss.
Detailed Description
Referring to fig. 1, the present invention provides a plain bearing including a housing 10, a bearing inner ring 9, a bearing outer ring 11, a bearing cap 14, a lubricating water inlet 16, and a seal ring 12; the shell 10 is integrally C-shaped; the bearing inner ring 9 is arranged inside the bearing outer ring 11 and rotates around the axial direction of the bearing outer ring 11; the bearing outer ring 11 is arranged in the shell 10 and fixed in the shell 10 through a bearing cover 14; a sealing ring 12 is arranged between the bearing outer ring 11 and the shell 10; a lubricating water channel is arranged between the bearing inner ring 9 and the bearing outer ring 11; the housing 10 is provided with a lubricating water inlet 16 communicating with the lubricating water passage.
Referring to fig. 2 and 3, the bearing inner race 9 adopted by the invention is integrally in a T-shaped structure and comprises an inner race thrust end 92 and a connecting column connected with the inner race thrust end 92; the bearing outer ring 11 is integrally in a convex structure, an axial through hole is axially formed in the bearing outer ring 11, and two ends of the bearing outer ring 11 are a bearing outer ring thrust end 115 and a fixed end opposite to the bearing outer ring thrust end 115 respectively; the connecting column of the bearing inner ring 9 extends into the axial through hole of the bearing outer ring 11; the inner race thrust end 92 of the bearing inner race 9 abuts against the bearing outer race thrust end 115 of the bearing outer race 11; inner race thrust end 92 and bearing outer race thrust end 115 form an axial friction pair; the lubricating water channel is arranged between the connecting column of the bearing inner ring 9 and the axial through hole of the bearing outer ring 11; the bearing cap 14 is connected to the fixed end of the bearing outer race 11 and the housing 10. The bearing inner ring 9 is made of TC4 material, corrosion-resistant ceramic, polymer or high polymer material, and the surfaces of the inner ring thrust end 92 and the connecting column are coated with coating layers 93; the coating 93 is tungsten carbide.
Referring to fig. 5, the lubricating water channel includes a first radial water passage groove 116 provided on the inner surface of the axial through hole on the bearing outer race 11, a second radial water passage groove 94 provided on the outer surface of the connection column on the bearing inner race 9, and a labyrinth ring groove 117 disposed between the axial through hole and the connection column; the lubricating water inlet 16 communicates with the second radial water passage groove 94 through a first radial water passage groove 116 and a labyrinth ring groove 117. The bearing outer ring 11 is made of polymer PEEK material, corrosion-resistant polymer or corrosion-resistant high polymer material.
A wave spring 13 is arranged between the bearing cover 14 and the fixed end of the bearing outer ring 11, and an adjusting gasket 15 is arranged between the wave spring 13 and the bearing cover 14.
Referring to fig. 6 and 4, the bearing cap 14 is provided with a boss 20; a waist-shaped groove 114 matched with the boss 20 is arranged on the end face of the fixed end of the bearing outer ring 11; the bearing cap 14 is connected with the bearing outer ring 11 through the boss 20 and the kidney-shaped groove 114. Referring to fig. 1 and 2, the bearing inner race 9 is provided with a pin hole 91, and the pin hole 91 is provided with a pin 18 for connecting and transmitting torque.
The sliding bearing provided by the invention adopts a sliding bearing form with thrust, consists of an inner ring and an outer ring, and is lubricated by trace water. The bearing inner ring is arranged on the shaft and rotates with the shaft to form a movable ring. The bearing inner ring 9 is of a T-shaped structure and made of TC4 material, and one end of the bearing inner ring is provided with a pin hole 91 for mounting a pin and transmitting radial torque with a shaft; the inner ring thrust end 92 and the outer ring are matched to form an axial friction pair; the L-shaped coating layer 3 is a friction pair, tungsten carbide is sprayed on the coating layer to achieve the purposes of reducing abrasion and resisting wear, and the inner ring material can also be made of corrosion-resistant ceramics, polymers, high polymer materials and the like. The bearing outer ring 11 is made of a polymer PEEK material, and other corrosion-resistant polymers, polymer materials, and the like may be used. A waist-shaped groove 114 is formed in the end face of the bearing outer ring 11 and used for radial positioning of the bearing outer ring 11; the bearing outer ring thrust end 115 is axially matched with the bearing inner ring 9; 3 radial water passing grooves 116 are uniformly distributed and used for passing lubricating water; the bearing outer ring thrust end 115 is also provided with a labyrinth ring groove 117 for circulating lubricating water.
Referring to fig. 1, a bearing inner ring 9 and a bearing outer ring 11 are installed in a housing 10 in a matching manner, the left end of the bearing inner ring 9 is abutted against a rotor shaft 8, and torque is transmitted through a pin 18 to ensure that the bearing inner ring 9 rotates with the rotor shaft 8 at the same speed; the right end of the bearing inner ring 9 is axially fixed through a screw 17, and the screw 17 is installed on the rotor shaft 8; the bearing outer ring 11 is arranged in the shell 10, the left end surface of the bearing outer ring is abutted against the inner ring thrust end 2 of the bearing inner ring 9, and the right end of the bearing outer ring is limited in the rightmost position in the axial direction through the adjusting gasket 15, namely the axial minimum clearance 19 between the rotor shaft 8 and the shell 10 is ensured; the right end of the adjusting shim 15 abuts against the bearing cap 14, and the bearing cap 14 is fixed on the housing 10 through screws. The bearing cover 14 is provided with 3 bosses 20 which are inserted into 3 kidney-shaped grooves 114 of the bearing outer ring, so that the radial fixation of the bearing outer ring 11 is ensured. A wave spring 13 is arranged between the bearing outer ring 11 and the bearing cover 14, and the bearing outer ring is pushed leftwards along with the abrasion of the thrust end of the bearing inner ring and the bearing outer ring, so that the compensation effect is started, and the service life of the bearing is prolonged. Water enters the bearing cavity through the lubricating water inlet 16, the sealing ring 12 is arranged between the bearing outer ring 11 and the shell 10, and a flow passage at the outer diameter of the bearing outer ring 11 is blocked, so that the lubricating water only can flow through the bearing. The lubricating water is matched with the inner ring and the outer ring of the lubricating bearing in a radial direction through the radial water passing groove 6, the labyrinth ring groove 117 blocks the water from flowing out, a certain water storage effect is achieved, the thrust end is lubricated, the labyrinth ring groove 7 can not completely seal the lubricating water, and the lubricating water flows to the rotor shaft 8 and is discharged along with the working medium of the whole machine. The lubricating water amount is less, a mixed friction state possibly exists, the bearing material and the friction matching pair are superior, but the water is continuously supplied to the bearing, the water storage effect can be realized through the arrangement of the flow channel, and the normal operation of the bearing can be ensured. Experiments prove that the bearing material has higher corrosion resistance, can stably work for a long time and has low power consumption.
Through the simulation test of the actual working condition, the lubricating water amount only accounts for 0.0016% of the volume of the transportation working medium, the thermal balance of the compressor is not influenced, the compressor operates stably after 3000 hours of fault, and no corrosion phenomenon is found. According to the calculation of the abrasion loss, the compressor can run for 7000 hours at least, the service life of a 3-year work task is met, and the maintenance of astronauts is not needed in the whole service life.
Claims (9)
1. A plain bearing characterized by: the sliding bearing comprises a shell (10), a bearing inner ring (9), a bearing outer ring (11), a bearing cover (14), a lubricating water inlet (16) and a sealing ring (12); the shell (10) is integrally C-shaped; the bearing inner ring (9) is arranged in the bearing outer ring (11) and rotates around the axial direction of the bearing outer ring (11); the bearing outer ring (11) is arranged in the shell (10) and is fixed in the shell (10) through a bearing cover (14); a sealing ring (12) is arranged between the bearing outer ring (11) and the shell (10); a lubricating water channel is arranged between the bearing inner ring (9) and the bearing outer ring (11); the shell (10) is provided with a lubricating water inlet (16) communicated with the lubricating water channel.
2. A plain bearing according to claim 1, characterized in that: the bearing inner ring (9) is integrally in a T-shaped structure and comprises an inner ring thrust end (92) and a connecting column connected with the inner ring thrust end (92); the bearing outer ring (11) is integrally in a convex structure, an axial through hole is axially formed in the bearing outer ring (11), and two ends of the bearing outer ring (11) are respectively a bearing outer ring thrust end (115) and a fixed end opposite to the bearing outer ring thrust end (115); the connecting column of the bearing inner ring (9) extends into the axial through hole of the bearing outer ring (11); the inner ring thrust end (92) of the bearing inner ring (9) is abutted against the bearing outer ring thrust end (115) of the bearing outer ring (11); the inner ring thrust end (92) and the bearing outer ring thrust end (115) form an axial friction pair; the lubricating water channel is arranged between a connecting column of the bearing inner ring (9) and an axial through hole of the bearing outer ring (11); and the bearing cover (14) is respectively connected with the fixed end of the bearing outer ring (11) and the shell (10).
3. A plain bearing according to claim 2, wherein: the bearing inner ring (9) is made of TC4 material, corrosion-resistant ceramic, polymer or high polymer material, and the surfaces of the inner ring thrust end (92) and the connecting column are coated with coating layers (93); the coating layer (93) is tungsten carbide.
4. A plain bearing according to claim 3, wherein: the lubricating water channel comprises a first radial water through groove (116) arranged on the inner surface of the axial through hole on the bearing outer ring (11), a second radial water through groove (94) arranged on the outer surface of the connecting column on the bearing inner ring (9) and a labyrinth ring groove (117) arranged between the axial through hole and the connecting column; the lubricating water inlet (16) is connected to the second radial water passage groove (94) via a first radial water passage groove (116) and a labyrinth ring groove (117).
5. A plain bearing according to claim 4, characterized in that: the bearing outer ring (11) is made of a polymer PEEK material, a corrosion-resistant polymer or a corrosion-resistant high polymer material.
6. A plain bearing according to claim 5, characterized in that: and a wave spring (13) is arranged between the bearing cover (14) and the fixed end of the bearing outer ring (11).
7. A plain bearing according to claim 6, characterized in that: an adjusting gasket (15) is arranged between the wave spring (13) and the bearing cover (14).
8. A plain bearing according to any one of claims 2 to 7, characterized in that: a boss (20) is arranged on the bearing cover (14); a waist-shaped groove (114) matched with the boss (20) is formed in the end face of the fixed end of the bearing outer ring (11); the bearing cover (14) is connected with the bearing outer ring (11) through a boss (20) and a kidney-shaped groove (114).
9. A plain bearing according to claim 8, wherein: the bearing inner ring (9) is provided with a pin hole (91), and the pin hole (91) is provided with a pin (18) for connecting and transmitting torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158590.XA CN111075832A (en) | 2019-11-22 | 2019-11-22 | Sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158590.XA CN111075832A (en) | 2019-11-22 | 2019-11-22 | Sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111075832A true CN111075832A (en) | 2020-04-28 |
Family
ID=70311371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911158590.XA Pending CN111075832A (en) | 2019-11-22 | 2019-11-22 | Sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111075832A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610607A (en) * | 2020-12-21 | 2021-04-06 | 英诺伟特（昆山）能源机械有限公司 | Oil-free water lubrication bearing |
| CN112643355A (en) * | 2020-11-16 | 2021-04-13 | 中国航发西安动力控制科技有限公司 | Processing method of high molecular polymer bearing assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943711A1 (en) * | 1979-10-30 | 1981-05-14 | Helmut 4800 Bielefeld Elges | Bearing with inner and outer rings - has peripheral protrusion on outer one engaging in groove in housing |
| CN2634177Y (en) * | 2003-08-07 | 2004-08-18 | 沈阳重工电器制造有限公司 | Irregular slide bearing |
| CN102829089A (en) * | 2011-06-13 | 2012-12-19 | 福建省福安市力德泵业有限公司 | Novel self-locking locating sliding bearing structure |
| CN203189312U (en) * | 2013-02-27 | 2013-09-11 | 江苏太阳宝新能源有限公司 | Fused salt pump self-lubricating bearing structure |
| CN105240402A (en) * | 2015-08-04 | 2016-01-13 | 上海卫星工程研究所 | Composite dynamic/static-pressure slide bearing |
| CN206221516U (en) * | 2016-11-22 | 2017-06-06 | 谭仲禧 | A kind of self-lubricating plain bearing seat |
| CN206708203U (en) * | 2017-04-28 | 2017-12-05 | 云南昆钢重型装备制造集团有限公司 | A kind of self-lubricating bearing device of underwater severe environment applications |
| CN207178472U (en) * | 2017-08-29 | 2018-04-03 | 江苏凤祥广告设备科技有限公司 | A kind of dust-proof sliding bearing of axial limiting |
-
2019
- 2019-11-22 CN CN201911158590.XA patent/CN111075832A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2943711A1 (en) * | 1979-10-30 | 1981-05-14 | Helmut 4800 Bielefeld Elges | Bearing with inner and outer rings - has peripheral protrusion on outer one engaging in groove in housing |
| CN2634177Y (en) * | 2003-08-07 | 2004-08-18 | 沈阳重工电器制造有限公司 | Irregular slide bearing |
| CN102829089A (en) * | 2011-06-13 | 2012-12-19 | 福建省福安市力德泵业有限公司 | Novel self-locking locating sliding bearing structure |
| CN203189312U (en) * | 2013-02-27 | 2013-09-11 | 江苏太阳宝新能源有限公司 | Fused salt pump self-lubricating bearing structure |
| CN105240402A (en) * | 2015-08-04 | 2016-01-13 | 上海卫星工程研究所 | Composite dynamic/static-pressure slide bearing |
| CN206221516U (en) * | 2016-11-22 | 2017-06-06 | 谭仲禧 | A kind of self-lubricating plain bearing seat |
| CN206708203U (en) * | 2017-04-28 | 2017-12-05 | 云南昆钢重型装备制造集团有限公司 | A kind of self-lubricating bearing device of underwater severe environment applications |
| CN207178472U (en) * | 2017-08-29 | 2018-04-03 | 江苏凤祥广告设备科技有限公司 | A kind of dust-proof sliding bearing of axial limiting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112643355A (en) * | 2020-11-16 | 2021-04-13 | 中国航发西安动力控制科技有限公司 | Processing method of high molecular polymer bearing assembly |
| CN112643355B (en) * | 2020-11-16 | 2023-09-05 | 中国航发西安动力控制科技有限公司 | Processing method of high molecular polymer bearing assembly |
| CN112610607A (en) * | 2020-12-21 | 2021-04-06 | 英诺伟特（昆山）能源机械有限公司 | Oil-free water lubrication bearing |
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Application publication date: 20200428 |
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| RJ01 | Rejection of invention patent application after publication |