CN205779877U - A kind of rotary dynamic sealing device - Google Patents
A kind of rotary dynamic sealing device Download PDFInfo
- Publication number
- CN205779877U CN205779877U CN201620667940.0U CN201620667940U CN205779877U CN 205779877 U CN205779877 U CN 205779877U CN 201620667940 U CN201620667940 U CN 201620667940U CN 205779877 U CN205779877 U CN 205779877U
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- water
- stop
- skeleton
- oil
- dynamic sealing
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Abstract
This utility model relates to a kind of rotary dynamic sealing device, it is sequentially provided with first water-stop from the water cavity side of rotating shaft to bearing side, second water-stop, oil seal, skeleton I, skeleton II, form two sealed grooves matched with first water-stop and second water-stop after skeleton III entirety is fixing in inner side and first water-stop and second water-stop are fixed support, the oil lubrication chamber for second water-stop lubrication it is provided with between first water-stop and second water-stop, first water-stop, second water-stop and oil seal are interference fit with rotating shaft, described skeleton I, skeleton II and skeleton III are matched in clearance with rotating shaft.This utility model is due to increase lubricant reservoir, efficiently solve the dry condition of second sealing ring, and owing to skeleton uses monolithic construction, install simple and convenient, particularly straight pin can effectively prevent whole sealing device from rotating along rotating shaft, and profit alarm device can monitor the leak case of first water-stop in real time.
Description
Technical field
This utility model relates to mechanical seal field, particularly relates to a kind of rotary dynamic sealing device.
Background technology
The working media of water pump is the liquid such as water, oil, acid & alkali liquid, emulsion, when working media enters along rotating shaft from water cavity side
When entering bearing side, the lubricating oil film of bearing ball body can be destroyed, reduce bearing load carrying capacity, even result in bearing rust, seriously
Reduce bearing service life, so the indoor lubricating oil of bearing and working media have to be separated.
Generally, water pump is installed twice rotary dynamic seal along rotating shaft and is sealed the working media of water cavity side, first
Sealing and directly contact with working media, utilize working media to lubricate, second seals then can be chronically at dry condition,
Seriously reduce its service life.And, waterstop ring is independent parts with the oil seal of bearing side, needs individually peace
Dress, complex operation, especially significantly increase installation difficulty when the rotating shaft diameter of axle is bigger.
Utility model content
The purpose of this utility model is to overcome disadvantages described above, it is provided that a kind of good seal performance, simple in construction, volume be little,
Easy accessibility, can realize profit seal rotary dynamic sealing device.
The technical solution of the utility model is, a kind of rotary dynamic sealing device, it includes first water-stop, second water
Sealing, oil seal, skeleton I, skeleton II, skeleton III, oil seal is outside framework oil seal, sets successively to bearing side from the water cavity side of rotating shaft
Have first water-stop, second water-stop, oil seal, oil-tightening opening towards bearing side, skeleton I, skeleton II, bone
Form two sealed grooves matched with first water-stop and second water-stop right in inner side after frame III is overall fixing
First water-stop and second water-stop are fixed support, skeleton II by be provided with inside bearing end and oil seal mutually
The sealed groove joined also is fixed support to oil seal, is provided with for second between first water-stop and second water-stop
The oil lubrication chamber of road water-stop lubrication, described first water-stop, second water-stop and oil seal are interference with rotating shaft and join
Closing, described skeleton I, skeleton II and skeleton III are matched in clearance with rotating shaft.
Preferably, described first water-stop and second water-stop are " inverted f " RunddichtringO, described first water
Seal and second water-stop " inverted f " type opening be towards water cavity side.
In order to prevent skeleton I, skeleton II, skeleton III entirety from rotating with rotating shaft, also including straight pin, described straight pin is arranged
At skeleton II cylindrical, skeleton II is fixed together by straight pin with the end cap matched.
Preferably, the oil filler point in described oil lubrication chamber is arranged between first water-stop and second water-stop and matches
Skeleton II and skeleton III radially at, skeleton II and skeleton III are radially provided with the through hole run through and communicate with oil lubrication chamber.
Preferably, described oil filler point is arranged on directly over the radial direction of skeleton II and skeleton III.
Preferably, in order to detect the oil level of oil lubrication intracavity, also include oil level observation port, for observing oil lubrication intracavity
Level height.
Preferably, also include under lubricating cup that profit alarm, described profit alarm include communicating with lubricating cavity and lubricating cup
The profit sensor in portion, when the oil-water ratio in lubricating cup exceedes setting value, then sends warning.
Advantageous Effects of the present utility model is, owing to the oil arranged in increase lubricant reservoir, lubricant reservoir is effective
Solve the dry condition of second sealing ring, and owing to skeleton uses monolithic construction, can disposably complete water pump
Oil, water parting seal, install simple and convenient, and particularly straight pin can effectively prevent whole sealing device from rotating along rotating shaft,
Profit alarm device can monitor the leak case of first water-stop in real time.
Accompanying drawing explanation
Fig. 1 is this utility model embodiment profit parting seal schematic diagram；
Fig. 2 is the structural representation of this utility model embodiment；
Fig. 3 is this utility model embodiment passage and profit alarm assemblies schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, this utility model is described in further detail.
Referring to the drawings the most shown, including first water-stop 7, second water-stop 6, oil seal 5, skeleton I 1, skeleton II 2,
Skeleton III 8, O-shaped rubber ring 3 and straight pin 4, the fitting surface of skeleton I 1, skeleton II 2 and skeleton III 8 composition is respectively mounted O shape rubber
Circle 3 realizes static seal, is sequentially provided with first water-stop 7, second water-stop from 14 to the bearing side, water cavity side 16 of rotating shaft 17
6, oil seal 5, oil seal 5 is outside framework oil seal, the opening of oil seal 5 towards bearing side 16, skeleton I 1, skeleton II 2, skeleton
III 8 overall fixing after form two sealed grooves matched with first water-stop 7 and second water-stop 6 right in inner side
First water-stop 7 and second water-stop 6 are fixed support, are provided with in the inner side by bearing side 16 of skeleton II 2 and oil
Seal 5 sealed grooves that match and oil seal 5 be fixed support, first water-stop 7 and second water-stop 6 it
Between be provided with the oil lubrication chamber for second water-stop 6 lubrication, the oil filler point 9 in oil lubrication chamber is arranged on first water-stop 7 and the
At the skeleton II 2 matched between two road water-stops 6 and skeleton III 8 radial direction, skeleton II 2 and skeleton III 8 are radially provided with and run through
Through hole communicate with oil lubrication chamber, oil filler point 9 is arranged on directly over the radial direction of skeleton II 2 and skeleton III 8.In order to detect oil lubrication
The oil level of intracavity, also includes oil level observation port 10, for observing the level height of oil lubrication intracavity, described first water-stop 7,
Second water-stop 6 and oil seal 5 are interference fit, described skeleton I 1, skeleton II 2 and skeleton III 8 and rotating shaft with rotating shaft 17
17 are matched in clearance.
First water-stop 7 and second water-stop 6 are " inverted f " RunddichtringO, first water-stop 7 and second
Water-stop 6 " inverted f " type opening be towards water cavity side 14.In order to prevent skeleton I 7, skeleton II 6, skeleton III 8 entirety with rotating shaft
17 rotate, and arrange straight pin 4 on skeleton II 2 cylindrical, and skeleton II 2 is fixed together by straight pin 4 with the end cap 15 matched.
Outage 11 bottom lubricant reservoir connects the lubricating cup 12 and the profit sensor 13 of lubricating cup bottom communicated with lubricating cavity, works as oil
When oil-water ratio in cup 12 exceedes setting value, profit sensor 13 then sends warning.
It is more than a kind of embodiment of the present utility model, a preferred demonstration example.This utility model application request is protected
The scope protected is not only limited in described embodiment.All and the present embodiment equivalence technical scheme belongs to guarantor of the present utility model
Protect scope.
Claims (14)
1. a rotary dynamic sealing device, it include first water-stop, second water-stop, oil seal, skeleton I, skeleton II,
Skeleton III, oil seal is outside framework oil seal, is sequentially provided with first water-stop, second watertight from the water cavity side of rotating shaft to bearing side
Envelope, oil seal, oil-tightening opening is towards bearing side, it is characterised in that described skeleton I, skeleton II, skeleton III are overall solid
Two sealed grooves matched with first water-stop and second water-stop are formed in inner side and to first watertight after Ding
Envelope and second water-stop be fixed support, at skeleton II by being provided with the sealing ditch matched with oil seal inside bearing end
Groove is also fixed support to oil seal, is provided with and moistens for second water-stop between first water-stop and second water-stop
Sliding oil lubrication chamber, described first water-stop, second water-stop and oil seal and rotating shaft are interference fit, described skeleton
I, skeleton II and skeleton III are matched in clearance with rotating shaft.
A kind of rotary dynamic sealing device the most according to claim 1, it is characterised in that described first water-stop and second
Road water-stop is " inverted f " RunddichtringO, " inverted f " type opening of described first water-stop and second water-stop be towards
Water cavity side.
3. according to a kind of rotary dynamic sealing device described in claim 1 or claim 2, it is characterised in that also include cylinder
Pin, described straight pin is arranged on skeleton II cylindrical, and skeleton II is fixed together by straight pin with the end cap matched.
4. according to a kind of rotary dynamic sealing device described in claim 1 or claim 2, it is characterised in that described lubricating oil
Chamber is provided with oil filler point, and the oil filler point in described oil lubrication chamber is arranged on and matches between first water-stop and second water-stop
At skeleton II and skeleton III radial direction, skeleton II and skeleton III are radially provided with the through hole run through and communicate with oil lubrication chamber.
A kind of rotary dynamic sealing device the most according to claim 3, it is characterised in that described lubricant reservoir is provided with oiling
Hole, the oil filler point in described oil lubrication chamber is arranged between first water-stop and second water-stop the skeleton II and bone matched
At frame III radial direction, skeleton II and skeleton III are radially provided with the through hole run through and communicate with oil lubrication chamber.
A kind of rotary dynamic sealing device the most according to claim 4, it is characterised in that described oil filler point is arranged on skeleton II
Directly over the radial direction of skeleton III.
A kind of rotary dynamic sealing device the most according to claim 5, it is characterised in that described oil filler point is arranged on skeleton II
Directly over the radial direction of skeleton III.
A kind of rotary dynamic sealing device the most according to claim 3, it is characterised in that also include oil level observation port, be used for
Observe the level height of oil lubrication intracavity.
A kind of rotary dynamic sealing device the most according to claim 6, it is characterised in that also include oil level observation port, be used for
Observe the level height of oil lubrication intracavity.
A kind of rotary dynamic sealing device the most according to claim 7, it is characterised in that also include oil level observation port, be used for
Observe the level height of oil lubrication intracavity.
11. according to a kind of rotary dynamic sealing device described in claim 1 or claim 2, it is characterised in that also include profit
Alarm, described profit alarm includes the profit sensor of lubricating cup and the lubricating cup bottom communicated with lubricating cavity, when in lubricating cup
When oil-water ratio exceedes setting value, then send warning.
12. a kind of rotary dynamic sealing devices according to claim 8, it is characterised in that also include profit alarm, described
Profit alarm includes the profit sensor of lubricating cup and the lubricating cup bottom communicated with lubricating cavity, when the oil-water ratio in lubricating cup exceedes
During setting value, then send warning.
13. a kind of rotary dynamic sealing devices according to claim 9, it is characterised in that also include profit alarm, described
Profit alarm includes the profit sensor of lubricating cup and the lubricating cup bottom communicated with lubricating cavity, when the oil-water ratio in lubricating cup exceedes
During setting value, then send warning.
14. a kind of rotary dynamic sealing devices according to claim 10, it is characterised in that also include profit alarm, institute
State lubricating cup and the profit sensor of lubricating cup bottom that profit alarm includes communicating with lubricating cavity, when the oil-water ratio in lubricating cup surpasses
When crossing setting value, then send warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667940.0U CN205779877U (en) | 2016-06-30 | 2016-06-30 | A kind of rotary dynamic sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620667940.0U CN205779877U (en) | 2016-06-30 | 2016-06-30 | A kind of rotary dynamic sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779877U true CN205779877U (en) | 2016-12-07 |
Family
ID=58127958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620667940.0U Active CN205779877U (en) | 2016-06-30 | 2016-06-30 | A kind of rotary dynamic sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927578A (en) * | 2016-06-30 | 2016-09-07 | 湘潭电机股份有限公司 | Rotation dynamic sealing device |
-
2016
- 2016-06-30 CN CN201620667940.0U patent/CN205779877U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927578A (en) * | 2016-06-30 | 2016-09-07 | 湘潭电机股份有限公司 | Rotation dynamic sealing device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |