CN113236738A - Salt fog prevention bearing structure - Google Patents
Salt fog prevention bearing structure Download PDFInfo
- Publication number
- CN113236738A CN113236738A CN202110385898.9A CN202110385898A CN113236738A CN 113236738 A CN113236738 A CN 113236738A CN 202110385898 A CN202110385898 A CN 202110385898A CN 113236738 A CN113236738 A CN 113236738A
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- Prior art keywords
- pulley
- bearing
- sealing cover
- shaft
- pulley shaft
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- Pending
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 22
- 230000002265 prevention Effects 0.000 title abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 78
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 13
- 239000010687 lubricating oil Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 5
- 239000000428 dust Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/50—Features essential to rope pulleys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
- B08B17/04—Preventing deposition of fouling or of dust by using removable coverings
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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
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a salt fog prevention bearing structure, which belongs to the technical field of general machinery and comprises the following components: including pulley shaft and from the bottom up coaxial arrangement in proper order epaxial lower sealing cover, bearing, pulley shaft end cover and last sealed lid of pulley, still establish the pulley outside the bearing, its characterized in that including the cover: the bottom of the pulley shaft is in a round cake shape, a cylindrical shaft is fixed at the center of the pulley shaft, a round groove is formed in the top end of the cylindrical shaft, a pulley shaft end cover is buckled on an inner ring of a bearing and fixed on the cylindrical shaft of the pulley shaft, the upper sealing cover is fixed on the pulley through a bolt, a lower sealing cover ring groove is formed in the outer side of the lower sealing cover, and the sealing stacking ring is installed in the lower sealing cover ring groove; the pulley copper sleeve is sleeved on the outer side of the sealing stack ring and is in interference fit with the inner side of the pulley, and the inner side of the pulley is in interference fit with the outer ring surface of the bearing. The invention can separate the bearing from the external environment, and can avoid the failure of the transmission mechanism caused by the bearing becoming a corrosion-prone part when the working environment is changed into an environment with high humidity and salinity.
Description
Technical Field
The invention relates to a salt fog prevention bearing structure, and belongs to the technical field of general machinery.
Background
The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body.
In mechanical equipment, the service life of a bearing is important, and the longer service life of the bearing can reduce the maintenance cost, manpower and material resources to a certain extent. When mechanical equipment is used in a severe working environment, such as an offshore environment, moisture and salt in the environment or dust, dust and oil stain enter a bearing cavity, the service life of a bearing structure is greatly influenced, the sealing performance of the bearing is particularly important, the sealing performance is better, the maintenance and replacement times are fewer, and the mechanical equipment works more stably. Therefore, a bearing structure with good sealing performance is urgently needed, and the bearing structure can be suitable for severe working environments.
Disclosure of Invention
The invention aims to provide a salt fog resistant bearing structure which is suitable for severe working environments with high humidity and salinity.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a prevent salt fog bearing structure, includes pulley shaft and from the bottom up coaxial arrangement in proper order at epaxial lower sealing cover of pulley, bearing, pulley shaft end cover and last sealed lid of pulley, still establishes the pulley outside the bearing, its characterized in that including the cover: the bottom of the pulley shaft is in a round cake shape, a cylindrical shaft is fixed at the center of the pulley shaft, a round groove is formed in the top end of the cylindrical shaft, the end cover of the pulley shaft is buckled on an inner ring of a pressing bearing and fixed on the cylindrical shaft of the pulley shaft, the upper sealing cover is fixed on the pulley through a bolt, a lower sealing cover ring groove is formed in the outer side of the lower sealing cover, and the sealing stacking ring is installed in the lower sealing cover ring groove; the pulley copper sleeve is sleeved on the outer side of the sealing stack ring and is in interference fit with the inner side of the pulley, and the inner side of the pulley is in interference fit with the outer ring surface of the bearing.
The technical scheme of the invention is further improved as follows: the bearing comprises one or more than one bearing.
The technical scheme of the invention is further improved as follows: the bearing types include ball bearings, cylindrical bearings, and conical bearings.
The technical scheme of the invention is further improved as follows: the lower sealing cover is in a circular ring shape, and the diameter of the inner circle is larger than that of the cylindrical shaft of the pulley shaft.
The technical scheme of the invention is further improved as follows: the bearing be a plurality of bearings, spacing axle sleeve is installed to adjacent bearing middle, the pulley inboard is provided with a plurality of annulars according to the size of bearing, the porose jump ring of using is installed to every annular, the bottom surface of the adjacent spacing axle sleeve of same bearing bottom and the bottom surface of hole jump ring are located same horizontal plane.
The technical scheme of the invention is further improved as follows: the middle of the pulley shaft end cover is provided with a cylindrical bulge, and a through hole penetrating through the pulley shaft end cover is formed in the middle of the pulley shaft end cover.
The technical scheme of the invention is further improved as follows: the cylindrical shaft is provided with a threaded hole downwards in the center of the circular groove, and the pulley shaft end cover is fixed on the cylindrical shaft of the pulley shaft by a bolt penetrating through the pulley shaft end cover.
The technical scheme of the invention is further improved as follows: the periphery of the upper sealing cover is provided with a circle of screw holes, and the center of the upper sealing cover is provided with an oil filling hole.
Due to the adoption of the technical scheme, the invention has the following technical effects:
the salt mist prevention bearing structure realizes transmission through bearing rotation; the pulley copper sheathing and the pulley interference fit in the structure realize that overall structure's bottom is sealed with sealed lid, sealed ring and pulley down to the pulley copper sheathing and the sealed cooperation of folding the ring use, the production of spark in the time of can avoiding the transmission.
Go up sealed lid be connected and install the top seal that realizes overall structure above the pulley through bolt and pulley, simultaneously with the sealed inside and external world of structure of separating of bottom for it is applicable in the higher abominable environment of humidity and salinity.
When oil is needed to be filled into the bearing for lubrication, the oil is filled inwards through the oil filling hole of the upper sealing cover, so that the lubricating oil is accumulated between the upper surface of the pulley shaft end cover and the inner surface of the upper sealing cover, and the lubricating oil in the bearing is splashed into the bearing through the rotating centrifugal force during transmission.
When the number of the bearings in the salt spray prevention bearing structure is one, the positioning and the clamping are realized through the lower sealing cover and the pulley shaft end cover, when the number of the bearings in the salt spray prevention bearing structure is multiple, the positioning and the clamping are realized through the lower sealing cover and the hole clamp spring by the lowermost bearing, the positioning and the limiting are realized through the limiting shaft sleeve and the pulley shaft end cover by the uppermost bearing, and the positioning and the clamping are realized through the lower limiting shaft sleeve and the hole clamp spring by the middle bearing.
The invention can separate the bearing from the external environment, and can avoid the failure of the transmission mechanism caused by the bearing becoming a corrosion-prone part when the working environment is changed into an environment with high humidity and salinity.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a disassembled view of the bearing structure of the embodiment of the present invention;
FIG. 3 is a cross-sectional view of a bearing structure according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of the upper sealing cover of the present invention;
FIG. 5 is a schematic view of the pulley shaft end cap structure of the present invention;
FIG. 6 is a schematic diagram of a pulley structure of a bearing structure according to an embodiment of the present invention;
FIG. 7 is a schematic view of a spacing shaft sleeve structure according to the present invention;
FIG. 8 is a schematic view of the structure of the lower sealing cap of the present invention;
FIG. 9 is a schematic structural view of a pulley copper sleeve of the present invention;
fig. 10 is a schematic view of a pulley shaft structure of the present invention.
The pulley shaft structure comprises a bearing, a bearing seat, a pulley shaft, a bearing seat and a bearing seat, wherein 1, an upper sealing cover, 1-2, an oil injection hole, 2, a pulley shaft end cover, 2-3, a through hole and 3 are arranged; 4. 4-4 parts of a pulley, 4-4 parts of a pulley ring groove, 5 parts of a limiting shaft sleeve, 6 parts of a hole clamp spring, 7 parts of a second bearing, 8 parts of a sealing stacking ring, 9 parts of a pulley copper sleeve, 10 parts of a lower sealing cover, 10-3 parts of a lower sealing cover ring groove, 11 parts of a pulley shaft, 11-1 parts of a threaded hole, 11-2 parts of a cylindrical shaft.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings
Example 1
As shown in fig. 1, a salt mist resistant bearing structure comprises a pulley shaft 11, a lower sealing cover 10, a bearing, a pulley shaft end cover 2 and an upper sealing cover 1 which are coaxially mounted on the pulley shaft 11 from bottom to top in sequence, and a pulley 4 sleeved outside the bearing, wherein the bottom of the pulley shaft 11 is in a round cake shape, a cylindrical shaft 11-2 is fixed at the center, a round groove is arranged at the top end of the cylindrical shaft 11-2, the pulley shaft end cover 2 is buckled on the inner ring of the bearing and fixed on the cylindrical shaft 11-2 of the pulley shaft 11, the upper sealing cover 1 is fixed on the pulley 4 through a bolt, as shown in fig. 8, a lower sealing cover ring groove 10-3 is arranged on the outer side of the lower sealing cover 10, and a sealing stacked ring 8 is mounted in the lower sealing cover ring groove 10-3; the pulley copper sleeve 9 is sleeved outside the sealing stack ring 8 and is in interference fit with the inner side of the pulley 4, and the inner side of the pulley 4 is in interference fit with the outer ring surface of the bearing.
As shown in fig. 8, the lower seal cover 10 has a circular ring shape, and the diameter of the inner circle is larger than the diameter of the cylindrical shaft 11-2 of the pulley shaft 11.
The bearing comprises one or more than one, and the bearing types comprise a ball bearing, a cylindrical bearing and a conical bearing. When the bearing in the salt spray prevention bearing structure is one, the positioning and the clamping are realized through the lower sealing cover 10 and the pulley shaft end cover 2.
When a plurality of bearings are arranged in the salt spray prevention bearing, the limiting shaft sleeve 5 is arranged in the middle of the adjacent bearings, a plurality of annular grooves are formed in the inner side of the pulley 4 according to the size of the bearings, the snap springs 6 are arranged in the annular grooves for mounting holes, and the bottom surface of the limiting shaft sleeve 5 and the bottom surface of the snap spring 6 for mounting holes are located on the same horizontal plane. The bearing at the bottom is positioned and clamped by a clamp spring 6 through a lower sealing cover 10 and a hole at the top of the bearing, the bearing at the top is positioned and limited by a limiting shaft sleeve 5 at the bottom of the bearing and a pulley shaft end cover 2, and the bearing at the middle is positioned and clamped by the clamp spring 6 through the limiting shaft sleeve 5 at the bottom of the bearing and the hole at the top of the bearing.
As shown in fig. 5, a cylindrical protrusion is arranged in the middle of the pulley shaft end cover 2, and a through hole 2-3 is formed in the middle of the pulley shaft end cover 2 through the cylindrical protrusion.
As shown in fig. 10, the cylindrical shaft 11-2 is provided with a threaded hole 11-1 downward at the center of the circular groove, and a bolt passes through the pulley shaft end cap 2 to fix the pulley shaft end cap 2 to the cylindrical shaft 11-2 of the pulley shaft 11.
Go up sealed lid 1 and be connected and install the top seal that realizes overall structure above pulley 4 through bolt and pulley 4, simultaneously with the sealed of bottom can be with structure inside with external separating for this application prevents that salt fog bearing structure is applicable in the abominable environment of humidity and salinity is higher.
As shown in figure 4, the periphery of the upper sealing cover 1 is provided with a circle of screw holes, the center of the upper sealing cover is provided with an oil filling hole 1-2, when oil needs to be filled into the bearing, the oil is filled inwards through the oil filling hole of the upper sealing cover, so that lubricating oil is accumulated between the upper surface of the pulley shaft end cover and the inner surface of the upper sealing cover, and the lubricating oil in the lubricating oil is splashed into the bearing through the rotating centrifugal force during transmission.
Example 2
In this embodiment, based on embodiment 1, the difference is that 2 inner bearings of the salt spray prevention bearing structure are provided, as shown in fig. 2 and 3, the pulley shaft 11 is disposed at the lowest end of the whole; the lower sealing cover 10 is arranged above the pulley shaft 11, and the lower surface of the lower sealing cover is tightly attached to the upper surface of the pulley shaft; the sealing ring stack 8 is arranged in the lower sealing cover ring groove 10-3; the second bearing 7 is arranged above the lower sealing cover 10 and is positioned and arranged and limited towards the bottom through the upper surface of the lower sealing cover; the limiting shaft sleeve 5 is arranged above the second bearing 7, and the lower surface of the limiting shaft sleeve 5 is tightly propped against the inner ring of the second bearing 7, so that the second bearing 7 can be limited in a propping manner; the first bearing 3 is arranged above the limiting shaft sleeve 5, and the inner ring of the first bearing 3 is tightly propped against the upper surface of the limiting shaft sleeve, so that the positioning installation and the downward limiting of the first bearing 3 are realized; the pulley shaft end cover 2 is arranged above the first bearing 3 and is connected with the pulley shaft 11 through a bolt, so that the lower surface of the pulley shaft end cover is tightly abutted against the inner ring of the first bearing 3, and the first bearing 3 is limited in the propping direction; a pulley ring groove 4-4 is formed in the pulley 4, and as shown in fig. 6, a hole is formed in the pulley ring groove 4-4 by a clamp spring 6, so that the outer ring of the second bearing 7 is positioned; the pulley copper sleeve 9 is arranged in the pulley 4 by clinging to the pulley inner ring; the pulley 4 and the pulley shaft 11 are coaxially wrapped on the lower sealing cover 10, the second bearing 7, the limiting shaft sleeve 5 and the first bearing 3; the upper sealing cover 1 is installed on the pulley 4 through bolt connection.
The first bearing 3 is positioned and limited through the limiting shaft sleeve 5 and the pulley shaft end cover 2, and the second bearing 7 is positioned and limited through the lower sealing cover 10 and the hole clamp spring 6.
The inner side of the pulley 4 is in interference fit with the outer ring surface of the bearing, the pulley copper sleeve 9 is in interference fit with the pulley 4, the bottom sealing of the whole structure is realized by the lower sealing cover 10, the sealing stacking ring 8 and the pulley 4, and the generation of sparks during transmission can be avoided.
The upper sealing cover 1 and the pulley 4 are connected through the pulley shaft threaded hole 11-1 by bolts to realize top sealing of the whole structure, and meanwhile, the sealing of the bottom can separate the inside of the structure from the outside, so that the upper sealing cover is applicable to severe environments with high humidity and salinity.
When oil is needed to be filled into the bearing for lubrication, the oil is filled inwards through the oil filling holes 1-2 of the upper sealing cover 1, so that the lubricating oil is accumulated between the upper surface of the end cover of the pulley shaft and the inner surface of the upper sealing cover, and the lubricating oil in the lubricating oil is splashed into the bearing through the rotating centrifugal force during transmission.
The embodiment realizes transmission through the rotation of the bearing; the first bearing 3 realizes positioning and limiting through a limiting shaft sleeve 5 and a pulley shaft end cover 2; the second bearing 7 realizes positioning and limiting through the lower sealing cover 10 and the limiting shaft sleeve 5; the upper sealing cover 1 is connected with the pulley 4 through a bolt and is arranged above the pulley, so that the upper end of the whole body is sealed; the sealing ring stack 8 is arranged in the annular groove 10-3 of the lower sealing cover and is matched with the pulley copper sleeve 9 and the pulley 4 to realize the sealing of the lower end of the whole body; the pulley copper sleeve 9 and the sealing ring stack 8 are matched for use, so that sparks can be avoided during transmission.
The invention can separate the bearing from the external environment, and can avoid the failure of the transmission mechanism caused by the bearing becoming a corrosion-prone part when the working environment is changed into an environment with high humidity and salinity.
Claims (8)
1. The utility model provides an anti-salt fog bearing structure, includes loose pulley axle (11) and from the bottom up sealed lid (10), bearing, loose pulley axle end cover (2) and last sealed lid (1) of coaxial arrangement in proper order on loose pulley axle (11), still establishes pulley (4) outside the bearing, its characterized in that including the cover: the bottom of the pulley shaft (11) is in a round cake shape, a cylindrical shaft (11-2) is fixed at the center, a circular groove is formed in the top end of the cylindrical shaft (11-2), a pulley shaft end cover (2) is buckled and pressed on a bearing inner ring and fixed on the cylindrical shaft (11-2) of the pulley shaft (11), the upper sealing cover (1) is fixed on the pulley (4) through a bolt, a lower sealing cover annular groove (10-3) is formed in the outer side of the lower sealing cover (10), and a sealing stacking ring (8) is installed in the lower sealing cover annular groove (10-3); the pulley copper sleeve (9) is sleeved on the outer side of the sealing stack ring (8) and is in interference fit with the inner side of the pulley (4), and the inner side of the pulley (4) is in interference fit with the outer ring surface of the bearing.
2. The salt fog resistant bearing structure of claim 1, wherein: the bearing comprises one or more than one bearing.
3. The salt fog resistant bearing structure of claim 2, wherein: the bearing types include ball bearings, cylindrical bearings, and conical bearings.
4. The salt fog resistant bearing structure of claim 1, wherein: the lower sealing cover (10) is annular, and the diameter of the inner circle of the lower sealing cover (10) is larger than that of the cylindrical shaft (11-2) of the pulley shaft (11).
5. The salt fog resistant bearing structure of claim 3, wherein: the bearing be a plurality of bearings, spacing axle sleeve (5) of adjacent bearing intermediate installation, pulley (4) inboard is provided with a plurality of annulars according to the size of bearing, the porose jump ring (6) of using of every annular inslot installation, the bottom surface of the adjacent spacing axle sleeve (5) of same bearing bottom and the bottom surface of hole jump ring (6) are located same horizontal plane.
6. The salt fog resistant bearing structure of any one of claims 1-5, wherein: the pulley shaft end cover is characterized in that a cylindrical bulge is arranged in the middle of the pulley shaft end cover (2), and a through hole (2-3) is formed in the middle of the pulley shaft end cover (2) and penetrates through the pulley shaft end cover (2).
7. The salt fog resistant bearing structure of claim 6, wherein: the cylindrical shaft (11-2) is provided with a threaded hole (11-1) downwards in the center of the circular groove, and a bolt penetrates through the pulley shaft end cover (2) to fix the pulley shaft end cover (2) on the cylindrical shaft (11-2) of the pulley shaft (11).
8. The salt fog resistant bearing structure of any one of claims 1-5, 7, wherein: the periphery of the upper sealing cover (1) is provided with a circle of screw holes, and the center of the upper sealing cover is provided with an oil filling hole (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110385898.9A CN113236738A (en) | 2021-04-09 | 2021-04-09 | Salt fog prevention bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110385898.9A CN113236738A (en) | 2021-04-09 | 2021-04-09 | Salt fog prevention bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113236738A true CN113236738A (en) | 2021-08-10 |
Family
ID=77128034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110385898.9A Pending CN113236738A (en) | 2021-04-09 | 2021-04-09 | Salt fog prevention bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113236738A (en) |
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| CN104235369A (en) * | 2014-09-15 | 2014-12-24 | 成都嘉陵华西光学精密机械有限公司 | Fully-sealed dustproof structure of fixed belt tension pulley component |
| CN104343933A (en) * | 2014-09-15 | 2015-02-11 | 成都嘉陵华西光学精密机械有限公司 | Tensioning wheel with fully-sealed dust-proof structure |
| CN204357758U (en) * | 2014-12-03 | 2015-05-27 | 进发轴承有限公司 | Air ring type vacuum pump bearing |
| CN107387734A (en) * | 2017-06-29 | 2017-11-24 | 武汉船用机械有限责任公司 | A kind of pulley assembly |
| CN111486231A (en) * | 2019-01-27 | 2020-08-04 | 中石化石油工程技术服务有限公司 | Single-bearing bidirectional combined sealing device |
| CN210344062U (en) * | 2019-08-06 | 2020-04-17 | 焦作科瑞森重装股份有限公司 | Sealed bearing seat suitable for severe working environment |
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Application publication date: 20210810 |