CN112178168A - Sea water seal structure is prevented to gear box for secondary filter screen - Google Patents
Sea water seal structure is prevented to gear box for secondary filter screen Download PDFInfo
- Publication number
- CN112178168A CN112178168A CN202011118552.4A CN202011118552A CN112178168A CN 112178168 A CN112178168 A CN 112178168A CN 202011118552 A CN202011118552 A CN 202011118552A CN 112178168 A CN112178168 A CN 112178168A
- Authority
- CN
- China
- Prior art keywords
- filter screen
- main shaft
- secondary filter
- sea water
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000005192 partition Methods 0.000 claims description 4
- 230000004313 glare Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002893 slag Substances 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- 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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to the field of seawater treatment, and provides a seawater-proof sealing structure of a gear box for a secondary filter screen. The clearance sleeve is arranged in the inner hole between the bearing chamber and the cavity of the box body and rotates along with the main shaft, the inner wall and the outer wall of the clearance sleeve are sealed by the sealing rings, seawater in the box body is prevented from flowing into the bearing chamber through the clearance between the main shaft and the shaft hole, and the service life of the bearing can be effectively prolonged. The bottom through the box installs the baffle to install the sealing washer on the top surface and the bottom surface of baffle, effectively prevent that the sea water in the secondary filter screen from causing the pollution to the equipment in the outside from gear box installation department outflow.
Description
Technical Field
The invention relates to the field of seawater treatment, in particular to a seawater-proof sealing structure of a gear box for a secondary filter screen.
Background
The secondary filter screen is mainly applied to a circulating water system of a nuclear power station, filters marine organisms and slag chips in a water source, and ensures efficient clean operation of a condenser and normal operation of a rubber ball cleaning device. The drive gear box of secondary filter screen installs at its top, and the gear in the gear box stretches into in the secondary filter screen with the drive mechanism meshing transmission of secondary filter screen, and in the course of the work, sea water in the secondary filter screen can enter into the gear box along with the gear to along the main shaft entering bearing in, produce the corruption to the bearing, reduce the life of bearing.
Disclosure of Invention
In order to solve the problem that a bearing of a gear box with a secondary filter screen is corroded by seawater in the prior art, the invention aims to provide a seawater-proof sealing structure of the gear box for the secondary filter screen.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a sea water preventing sealing structure of a gear box for a secondary filter screen comprises a box body, a main shaft and a gear, wherein the main shaft is supported in a shaft hole of the box body through a pair of bearings, the gear is installed on the main shaft through a key, end covers are respectively installed at two ends of the main shaft, and the end covers are fixedly installed on the outer side of the box body and limit the outer end faces of the bearings; a clearance sleeve is arranged in a shaft hole between the inner end surfaces of the bearings and the inner cavity of the box body, the clearance sleeve is sleeved on the main shaft and connected in a key mode, more than one circle of O-shaped ring is used for sealing between the outer ring of the clearance sleeve and the shaft hole, and more than one circle of Glare ring is used for sealing between the clearance sleeve ring and the outer ring of the main shaft.
Further, the bearing is an angular contact bearing.
Furthermore, the O-shaped sealing ring is arranged in an inner hole in the inner wall of the shaft hole.
Further, the gley is installed in an inner hole of the inner wall of the gap sleeve.
Furthermore, a partition plate is installed on the bottom surface of the box body, a sealing ring is installed between the bottom surface of the box body and the bottom plate, and the sealing ring is installed at the bottom of the bottom plate.
After the technical scheme is adopted, the invention has the beneficial effects that: the clearance sleeve is arranged in the inner hole between the bearing chamber and the cavity of the box body and rotates along with the main shaft, the inner wall and the outer wall of the clearance sleeve are sealed by the sealing rings, seawater in the box body is prevented from flowing into the bearing chamber through the clearance between the main shaft and the shaft hole, and the service life of the bearing can be effectively prolonged. The bottom through the box installs the baffle to install the sealing washer on the top surface and the bottom surface of baffle, effectively prevent that the sea water in the secondary filter screen from causing the pollution to the equipment in the outside from gear box installation department outflow.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a perspective view of the present invention.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying drawings:
as shown in the figure, a sea water seal structure is prevented to gear box for secondary filter screen comprises box, main shaft 1 and gear 2, and the box includes body 3, upper cover 4 and baffle 5, and the bolt hole that the box passes through 3 bottoms of body is installed on the top surface of secondary filter screen, and baffle 5 is installed between body and secondary filter screen for further sealed, it is equipped with a plurality of bolt holes to correspond body 3 on the baffle 5. A sealing ring is arranged between the body 3 and the partition plate 5 for sealing, and a sealing ring is also arranged between the partition plate 5 and the top surface of the secondary filter screen for sealing. The two ends of the main shaft 1 are supported in the body 3 by a pair of angular contact bearings 6, the main shaft 1 is penetrated in a shaft hole in the body 3, the bearings 6 are arranged in bearing chambers, end covers 7 are respectively arranged on the outer sides of the bearings 6, and the end covers 7 limit the outer end faces of the bearings 6. The gear 2 is arranged on the main shaft 1 through a key, the gear 2 is positioned in the cavity of the body 3, and the gear 2 extends out of the bottom part of the body and is meshed with a transmission mechanism in the secondary filter screen to complete transmission. In order to prevent the main shaft 1 from axially moving, the extending end of the main shaft 1 is limited with the outer end face of the corresponding bearing through a shaft shoulder, a limiting ring 8 is installed at the tail end of the main shaft through external threads, and the limiting ring 8 is limited with the outer end face of the corresponding bearing.
During the working process, seawater in the secondary filter screen enters the box body and flows into the bearing chamber along a gap between the shaft hole and the main shaft. In order to prevent the bearing in the box body from being corroded by seawater, a gap sleeve 9 is arranged in a shaft hole between a cavity of the body 3 and the bearing chamber, the gap sleeve 9 is sleeved on the main shaft 1 and rotates together with the main shaft 1 through key connection, at least two circles of GREEN 10 are used for sealing between the gap sleeve 9 and the main shaft, and the GREEN 10 is embedded in a ring groove in the inner wall of the gap sleeve 9. The clearance sleeve 9 and the shaft hole are sealed by at least two rings of O-shaped rings 11, and the O-shaped ring seals 11 are embedded in the ring grooves on the inner wall of the shaft hole.
Claims (5)
1. A sea water preventing sealing structure of a gear box for a secondary filter screen comprises a box body, a main shaft and a gear, wherein the main shaft is supported in a shaft hole of the box body through a pair of bearings, the gear is installed on the main shaft through a key, end covers are respectively installed at two ends of the main shaft, and the end covers are fixedly installed on the outer side of the box body and limit the outer end faces of the bearings; the bearing is characterized in that a gap sleeve is arranged in a shaft hole between the inner end surfaces of the pair of bearings and the inner cavity of the box body, the gap sleeve is sleeved on the main shaft and connected with the main shaft in a key mode, more than one circle of O-shaped ring is used for sealing between the outer ring of the gap sleeve and the shaft hole, and more than one circle of Glare ring is used for sealing between the gap sleeve ring and the outer ring of the main shaft.
2. The gearbox sea water seal structure for the secondary filter screen of claim 1, wherein the bearing is an angular contact bearing.
3. The sea water seal structure of the gear box for the secondary filter screen according to claim 1, wherein the O-ring is installed in an inner hole formed in an inner wall of the shaft hole.
4. The sea water preventing sealing structure of the gear box for the secondary filter screen according to claim 1, wherein the Gelai is installed in an inner hole of an inner wall of the gap sleeve.
5. The sea water preventing sealing structure of the gear box for the secondary filter screen as claimed in claim 1, wherein a partition plate is installed on the bottom surface of the box body, a sealing ring is installed between the bottom surface of the box body and the bottom plate, and the sealing ring is installed on the bottom of the bottom plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011118552.4A CN112178168A (en) | 2020-10-19 | 2020-10-19 | Sea water seal structure is prevented to gear box for secondary filter screen |
| PCT/CN2020/139326 WO2022082994A1 (en) | 2020-10-19 | 2020-12-25 | Gearbox seawater-resistant sealing structure for secondary filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011118552.4A CN112178168A (en) | 2020-10-19 | 2020-10-19 | Sea water seal structure is prevented to gear box for secondary filter screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112178168A true CN112178168A (en) | 2021-01-05 |
Family
ID=73950920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011118552.4A Pending CN112178168A (en) | 2020-10-19 | 2020-10-19 | Sea water seal structure is prevented to gear box for secondary filter screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112178168A (en) |
| WO (1) | WO2022082994A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090442A (en) * | 2001-09-19 | 2003-03-28 | Hitachi Constr Mach Co Ltd | Reduction gear |
| US8733196B2 (en) * | 2002-05-12 | 2014-05-27 | Sew-Eurodrive Gmbh & Co. Kg | Standard gear unit, assembly kit and drive |
| CN202901187U (en) * | 2012-10-29 | 2013-04-24 | 南通荣恒环保设备有限公司 | High-speed prime motor |
| CN105179646B (en) * | 2015-07-23 | 2017-09-08 | 浙江天鸿传动机械有限公司 | Effective powerful type wire drawing decelerator |
| CN205207603U (en) * | 2015-12-12 | 2016-05-04 | 上虞市百官电机有限公司 | Speed reducer for cooling tower |
| CN108087528A (en) * | 2018-01-30 | 2018-05-29 | 华电江苏能源有限公司句容发电厂 | A kind of retarder combination dynamic sealing device |
| CN111059259A (en) * | 2019-12-30 | 2020-04-24 | 江苏泰隆减速机股份有限公司 | Oil-seal-free speed reducer for pinch roll in steel industry |
-
2020
- 2020-10-19 CN CN202011118552.4A patent/CN112178168A/en active Pending
- 2020-12-25 WO PCT/CN2020/139326 patent/WO2022082994A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022082994A1 (en) | 2022-04-28 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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