CN107100881A - Fluid-tight structure, water pump and engine - Google Patents
Fluid-tight structure, water pump and engine Download PDFInfo
- Publication number
- CN107100881A CN107100881A CN201610098712.0A CN201610098712A CN107100881A CN 107100881 A CN107100881 A CN 107100881A CN 201610098712 A CN201610098712 A CN 201610098712A CN 107100881 A CN107100881 A CN 107100881A
- Authority
- CN
- China
- Prior art keywords
- ring support
- stationary
- fluid
- ring
- tight structure
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
- F04D29/108—Shaft sealings especially adapted for liquid pumps the sealing fluid being other than the working liquid or being the working liquid treated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The present invention relates to engine art, a kind of fluid-tight structure, water pump and engine are disclosed.The fluid-tight structure includes rotating ring support (1) and the rotary packing ring (2) being arranged on the rotating ring support (1), and stationary ring support (3) and the stationary seal ring (4) that is arranged on the stationary ring support (3), liquid seal clearance (5) is formed between the rotary packing ring (2) and the stationary seal ring (4), the reservoir chamber (6) around the liquid seal clearance (5) is formed between the rotating ring support (1) and the stationary ring support (3), and the relative spacing between the rotating ring support (1) and the stationary ring support (3) is formed as the liquid inlet (7) of the reservoir chamber (6).The fluid-tight structure can greatly enhance the lubricating ability of fluid-tight such as water seal or oil sealing, prevent the problem of fluid-tight is failed, with the service life for all parts for significantly improving fluid-tight.
Description
Technical field
The present invention relates to technical field of engines, in particular it relates to which a kind of fluid-tight structure, one kind has this
Plant the water pump of fluid-tight structure and the engine with this water pump.
Background technology
Water pump is one of main parts of vehicle motor.What water pump was set including the pump housing, through the pump housing
Water pump bearing, water pump bearing, which is extend on the part in the pump housing, is provided with impeller, and water pump bearing is located at the pump housing
Belt pulley is provided with outer part, so, engine drives water pump bearing and impeller to turn by belt pulley
Dynamic, the coolant in pump body is driven by impeller to be rotated together, and water is thrown toward under the influence of centrifugal force
The edge of pump housing inner chamber, while producing certain pressure, then flows out from the water outlet on the pump housing or water pipe.
Due to impeller center due to coolant is thrown out of and pressure is reduced, the coolant in water tank is entered in water pump
Mouth under the differential pressure action of impeller central through water pipe with that could be inhaled into the pump housing, so as to realize the past of coolant
Multiple circulation, in order to prevent the coolant in pump body from being leaked at the assembling of water pump bearing and the pump housing, is needed
To prevent coolant from leaking by being fitted in the water seal at both assemblings.
In the prior art, this water seal carries out close by the friction pair of rotating ring and the stationary ring formation of SiC material
Envelope, i.e., rotating ring is rotated with axle, and stationary ring is remained stationary as, in the inside of the pump housing, is formed between rotating ring and neck ring
There is seal clearance, in order to reduce the friction between dynamic and static ring and improve both service life, this water seal
It is lubricated by the lubricating layer of coolant formation in gap between rotating ring and stationary ring, and takes away friction production
Raw heat.
However, water pump is in the course of the work, due to impeller rotational agitation coolant and coolant is thrown away,
By the pressure reduction at the center for causing impeller and the axially extended position at the center, now, some
In the case of, a certain degree of vacuum area can be formed near water seal, now, water seal will be because of coolant
Deficiency and cause dynamic and static ring between friction auxiliary air gap in lubricating film weaken or disappear, cause dynamic and static ring to be rubbed
Wipe the heat of power and generation also can quickly increase therewith, and to produce dry friction, this dry friction can accelerate water
The abrasion of envelope, while thermal overload can make water seal rubber even steel part part fusing, causes water seal to be failed, cold
But liquid is leaked.
The content of the invention
It is an object of the invention to provide a kind of fluid-tight structure, the fluid-tight structure can greatly enhance fluid-tight for example
Water seal or the lubricating ability of oil sealing, prevent the problem of fluid-tight is failed, to significantly improve each of fluid-tight
The service life of individual part.
To achieve these goals, the present invention provides a kind of fluid-tight structure, and the fluid-tight structure includes rotating ring branch
Frame and the rotary packing ring that is arranged on the rotating ring support and stationary ring support and it is arranged on the stationary ring support
Stationary seal ring, between the rotary packing ring and the stationary seal ring formed liquid seal clearance, wherein, institute
The reservoir chamber being formed between rotating ring support and the stationary ring support around the liquid seal clearance is stated, and
And the relative spacing between the rotating ring support and the stationary ring support is formed as entering for the reservoir chamber
Liquid mouthful.
By the technical scheme, due to being formed between rotating ring support and stationary ring support around rotary packing ring and
The reservoir chamber of liquid seal clearance between stationary seal ring, and the reservoir chamber then can be with by liquid inlet
Liquid such as cooling water or coolant or the oil connection of leakage are sealed against, it is, preventing leakage
Liquid can enter the liquid storage cylinder indoor storage, so, though be sealed against leakage liquid
Due to being stirred and throwing away to be formed about the liquid in vacuum environment, reservoir chamber in the fluid-tight structure
It can't be flowed out out of reservoir chamber, to continue to liquid seal clearance formation lubricating film, so as to significantly
Strengthen the lubricating ability of fluid-tight such as water seal or oil sealing, the problem of fluid-tight is failed is prevented, with significantly
Improve the service life of all parts of fluid-tight.
Further, the liquid inlet is formed as labyrinth shape structure.
Further, state one of stationary ring support and the rotating ring support a part extend over it is described
The other of stationary ring support and the rotating ring support, and between extension and the outer surface of another one
With the relative spacing.
Further, the stationary ring support is connected with shield, and the shield covers the rotating ring support.
In addition, the rotating ring support includes annular groove and the cylinder for being assembled to rotating ring support in rotating shaft
Shape portion, wherein, the rotary packing ring is arranged in the annular groove by suppressing compensation rotating ring.
Further, the stationary ring support is arranged around the cylindrical part, and the stationary ring support is formed
There is holding tank of the opening towards the annular groove, the stationary seal ring is arranged on institute by suppressing compensation stationary ring
State in holding tank and can be relative to the axially adjustable position of the holding tank.
Further, it is provided with bullet between the groove bottom of the compacting compensation stationary ring and the holding tank
Spring.
Further, the groove bottom of the holding tank is formed with peripheral flange, and the spring housing is loaded on institute
State peripheral flange；It is convex that the inner radial of the compacting compensation stationary ring is positioned at the circumference by interior retainer
Between the internal groove side wall of edge and the holding tank, the compacting compensation stationary ring passes radially outward outer retainer
The spring is positioned at, the stationary seal ring is arranged in the interior retainer and compacting compensation stationary ring shape
Into space in.
In addition, the present invention also provides a kind of water pump, the water pump includes the pump housing and the rotating shaft stretched out from the pump housing,
Water seal is equipped between the rotating shaft and the pump housing, wherein, the water seal is the liquid described in any of the above
Seal structure.
So, as described above, the water sealing property of the water pump has obtained significant raising.
In addition, the present invention also provides a kind of engine, wherein, the engine includes above-described water
Pump.So, the engine is not compromised by the leakage of coolant and high temperature risk occurs, improves and starts
Machine reliability of operation.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, with
Following embodiment is used to explain the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is a kind of cut-away diagram of water pump partial structurtes, wherein, it is shown that present invention specific implementation
The fluid-tight structure that mode is provided.
Description of reference numerals
1- rotating ring supports, 2- rotary packing rings, 3- stationary ring supports, 4- stationary seal rings, 5- liquid seal clearances, 6-
Reservoir chamber, 7- liquid inlets, 8- shields, 9- annular grooves, 10- cylindrical parts, 11- compacting compensation rotating rings, 12-
Protected in holding tank, 13- compacting compensation stationary rings, 14- springs, 15- peripheral flanges, 16- inner radials, 17-
Hold frame, 18- internal groove side walls, the outer retainers of 19-, the 20- pump housings, 21- rotating shafts, 22- radially outers.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Embodiment described herein is merely to illustrate and explain the present invention, and is not limited to this hair
It is bright.
As shown in figure 1, the fluid-tight structure of the present invention includes rotating ring support 1 and is arranged on the rotating ring support 1
On rotary packing ring 2 and stationary ring support 3 and the stationary seal ring 4 that is arranged on the stationary ring support 3,
Liquid seal clearance 5, rotating ring support 1 and stationary ring support 3 are formed between rotary packing ring 2 and stationary seal ring 4
Between be formed with reservoir chamber 6 around liquid seal clearance 5, and rotating ring support 1 and stationary ring support 3
Between relative spacing be formed as the liquid inlet 7 of reservoir chamber 6.
So, in the technical scheme, when the fluid-tight structure is in confined state, the He of rotating ring support 1
It will be formed between stationary ring support 3 around the liquid seal clearance 5 between rotary packing ring 2 and stationary seal ring 3
Reservoir chamber 6, as shown in figure 1, and the reservoir chamber 6 then can be with being sealed to by liquid inlet 7
Liquid such as cooling water or coolant or the oil connection of leakage are prevented, it is, preventing the liquid energy of leakage
The liquid storage cylinder indoor storage is enough entered (for example, when the water pump of engine is provided with such fluid-tight structure
When, the reservoir chamber 6 can directly be connected by liquid inlet 7 with the inside of pump body, so, water
Coolant in the pump pump housing will be full of reservoir chamber 6 by the liquid inlet 7), so, even if being sealed to
Prevent the liquid revealed due to being stirred and throwing away to be formed about vacuum environment in the fluid-tight structure, liquid storage
Liquid in chamber 6 can't also flow out out of reservoir chamber 6, to continue to form liquid seal clearance 5
Lubricating film, so as to greatly enhance the lubricating ability of fluid-tight such as water seal or oil sealing, prevents fluid-tight
The problem of failure, with the service life for all parts for significantly improving fluid-tight.
In order to further prevent the stream out of reservoir chamber 6 under some operating modes of the liquid in reservoir chamber 6
Go out, or improve the recoverable amount of liquid in reservoir chamber 6, it is preferable that liquid inlet 7 is formed as labyrinth shape
Structure, it is, rotating ring support 1 and the interlaced liquid inlet 7 for forming labyrinth shape of stationary ring support 3,
So, the liquid rotation in reservoir chamber 6 is driven radially outward to be got rid of even if rotating ring support 1 is rotated, but
Due to the stop of the wall of labyrinth shape liquid inlet 7, liquid in reservoir chamber 6 also substantially can't be from entering
Liquid mouthful 7 is discharged, and is continued so that the liquid in reservoir chamber 6 is provided above-mentioned liquid seal clearance 5
Effective lubricating film.
Fig. 1 shows a kind of structure type of labyrinth shape liquid inlet 7, as shown in figure 1, in rotating ring support
During 1 rotation, radially outward having been got rid of liquid will be stopped by shield 8.But those skilled in the art can manage
In solution, fluid-tight structure of the invention, labyrinth shape liquid inlet 7 is not limited to this, for example, rotating ring support 1
On be provided with a protective case, the protective case forms fluted, and another protective case is provided with stationary ring support 3, equally,
The protective case is also formed with a groove, so, and the groove on two protective cases, which can be detained mutually, to be stacked, from
And form the liquid inlet 7 of labyrinth shape.
Certainly, for the ease of shaping, and compact conformation is made, it is preferable that stationary ring support 3 and rotating ring support
One of 1 part extends over the other of stationary ring support 3 and rotating ring support 1, and prolongs
Extending portion point has relative spacing between the outer surface of another one, so, it is possible to use a support itself
Structure come with another support assorted formation reservoir chamber 6, as shown in figure 1, can one on stationary ring support 3
Body is formed with shield 8, the shield 8 covering rotating ring support 1, and relative spacing between the two can be with
Form labyrinth shape liquid inlet 7.
Further, for the ease of the processing of stationary ring support 3, and it is easy to other portions in fluid-tight structure
The assembling of part, it is preferable that a single shield 8 can be set, for example, as shown in figure 1, stationary ring branch
Frame 3, which connects such as welding or bolt connection, shield 8, and shield 8 covers rotating ring support 1, so,
The final stage of fluid-tight structure, shield 8 can be welded or bolted on stationary ring support 3 and with it is quiet
Ring support 3 keeps relative spacing to form liquid inlet 7.
On the basis of any more than, rotating ring support 1 can have multiple structural forms, for example, as schemed
Shown in 1, in preferred structure, rotating ring support 1 includes annular groove 9 and for rotating ring support to be assembled
Cylindrical part 10 on to rotating shaft, wherein, rotary packing ring 2 is arranged on annular by suppressing compensation rotating ring 11
In groove 9.So, the axial face formed by cylindrical part 10 and rotating shaft 21 is positioned, can be by rotating ring branch
Frame 1 is reliablely and stablely positioned in rotating shaft 21.
Further, on this basis, continue as shown in figure 1, stationary ring support 3 then surrounds cylindrical part 10
Arrangement, and stationary ring support 3 is formed with holding tank 12 of the opening towards annular groove 9, stationary seal ring 4
By suppress compensation stationary ring 13 be arranged on holding tank 12 in and can be axially adjustable relative to holding tank 12
Position.So, worn and torn with the operating of stationary seal ring 4 and rotary packing ring 2, stationary seal ring 4 will be real-time
Ground is towards the adjustment position of rotary packing ring 2, so that maintaining liquid seal clearance 5 is in appropriate state all the time, and
Lasting lubricating film is formed by the liquid in reservoir chamber 6.
More further, as shown in figure 1, being set between compacting compensation stationary ring 13 and the groove bottom of holding tank 12
Spring 14 is equipped with, so, because rotating ring support 1 can be fixed on rotating shaft 21, and stationary ring support 3 is then
The pump housing 20 can be for example fixed on, so, after mounting, spring 14 will be in compressive state, so that
Worn and torn with the operating of stationary seal ring 4 and rotary packing ring 2, spring 14 is by Real Time Drive stationary seal ring 4
Towards the adjustment position of rotary packing ring 2, so that maintaining liquid seal clearance 5 is in appropriate state all the time.
It is highly preferred that as shown in figure 1, the groove bottom of holding tank 12 is formed with peripheral flange 15, spring
14 are set in peripheral flange 15；The inner radial 16 of compacting compensation stationary ring 13 is fixed by interior retainer 17
Position is between the internal groove side wall 18 of peripheral flange 15 and holding tank 12, and the footpath of compacting compensation stationary ring 13 is outside
Portion 22 is positioned at spring 14 by outer retainer 19, and stationary seal ring 4 is arranged in interior retainer 17 and pressure
In the space of the system compensation formation of stationary ring 13, so, the internal groove side wall 18 of peripheral flange 15 and holding tank 12
Between space not only can in order to suppress compensation stationary ring 13 inner radial 16 be positioned, moreover,
While spring 14 promotes outer retainer 19, inner radial 16 can also be oriented to, certainly,
Space between the internal groove side wall 18 of peripheral flange 15 and holding tank 12 is not limited to the knot shown in Fig. 1
Structure, it can be rectangular groove structure.
In addition, as shown in figure 1, the present invention a kind of water pump is also provided, the water pump include the pump housing 20 and from
The rotating shaft 21 that the pump housing 20 stretches out, water seal is equipped between rotating shaft 21 and the pump housing 20, wherein, water seal
For the fluid-tight structure described in any of the above, wherein, rotating ring support 1 is fixed on rotating shaft 21, stationary ring support 3
It is fixed on the pump housing 20.So, as described above, the water sealing property of the water pump has obtained significant raising.
In addition, the present invention also provides a kind of engine, wherein, engine includes above-described water pump.
So, the engine is not compromised by the failure of water seal and causes coolant to leak and high temperature risk occur,
Improve engine reliability of operation.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited
Detail in above-mentioned embodiment, can be to the present invention in the range of the technology design of the present invention
Technical scheme carry out a variety of simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not
The repetition wanted, the present invention no longer separately illustrates to various possible combinations.
In addition, various embodiments of the present invention can be combined randomly, as long as its
Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of fluid-tight structure, including rotating ring support (1) and it is arranged on dynamic on the rotating ring support (1)
Sealing ring (2) and stationary ring support (3) and the stationary seal ring (4) being arranged on the stationary ring support (3),
Liquid seal clearance (5), its feature are formed between the rotary packing ring (2) and the stationary seal ring (4)
It is, is formed between the rotating ring support (1) and the stationary ring support (3) around the liquid-tight envelope
The reservoir chamber (6) in gap (5), and the rotating ring support (1) and the stationary ring support (3)
Between relative spacing be formed as the liquid inlets (7) of the reservoir chamber (6).
2. fluid-tight structure according to claim 1, it is characterised in that liquid inlet (7) shape
As labyrinth shape structure.
3. fluid-tight structure according to claim 1, it is characterised in that the stationary ring support (3)
The stationary ring support (3) is extended over a part for one of the rotating ring support (1) and described
The other of rotating ring support (1), and have between extension and the outer surface of another one described
Relative spacing.
4. fluid-tight structure according to claim 3, it is characterised in that the stationary ring support (3)
Shield (8) is connected with, the shield (8) covers the rotating ring support (1).
5. the fluid-tight structure according to any one in claim 1-4, it is characterised in that described dynamic
Ring support (1) includes annular groove (9) and the cylindrical part (10) for being assembled to rotating ring support in rotating shaft,
Wherein, the rotary packing ring (2) is arranged on the annular groove (9) by suppressing compensation rotating ring (11)
It is interior.
6. fluid-tight structure according to claim 5, it is characterised in that the stationary ring support (3)
Around the cylindrical part (10) arrangement, and the stationary ring support (3) is formed with opening described in
The holding tank (12) of annular groove (9), the stationary seal ring (4) is by suppressing compensation stationary ring (13)
In the holding tank (12) and can be relative to the holding tank (12) axially adjustable position.
7. fluid-tight structure according to claim 6, it is characterised in that the compacting compensates stationary ring
(13) spring (14) is provided between the groove bottom of the holding tank (12).
8. fluid-tight structure according to claim 7, it is characterised in that the holding tank (12)
Groove bottom is formed with peripheral flange (15), and the spring (14) is set in the peripheral flange (15)；
The inner radial (16) of the compacting compensation stationary ring (13) is positioned at by interior retainer (17)
Between the peripheral flange (15) and the internal groove side wall (18) of the holding tank (12), the compacting is mended
The radially outer (22) for repaying stationary ring (13) is positioned at the spring (14) by outer retainer (19),
The stationary seal ring (4) is arranged in the interior retainer (17) and the compacting compensation stationary ring (13)
In the space of formation.
9. a kind of water pump, including the pump housing (20) and the rotating shaft (21) from the pump housing (20) stretching, institute
State and be equipped with water seal between rotating shaft (21) and the pump housing (20), it is characterised in that the water seal is
Fluid-tight structure according to any one in claim 1-8.
10. a kind of engine, it is characterised in that the engine includes according to claim 9
Water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098712.0A CN107100881A (en) | 2016-02-23 | 2016-02-23 | Fluid-tight structure, water pump and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098712.0A CN107100881A (en) | 2016-02-23 | 2016-02-23 | Fluid-tight structure, water pump and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100881A true CN107100881A (en) | 2017-08-29 |
Family
ID=59658828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610098712.0A Pending CN107100881A (en) | 2016-02-23 | 2016-02-23 | Fluid-tight structure, water pump and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100881A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387222A (en) * | 2017-09-01 | 2017-11-24 | 宁波海大嘉华汽车零部件制造有限公司 | A kind of foldable vehicle water pump mounting bracket |
| CN110102518A (en) * | 2019-05-20 | 2019-08-09 | 武汉宜贝思智能有限公司 | A kind of clearance-type positive/negative-pressure valve actuating mechanism |
| CN110821735A (en) * | 2019-11-04 | 2020-02-21 | 大连双龙泵业制造有限公司 | Novel hydraulic turbine mechanical sealing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387222A (en) * | 2017-09-01 | 2017-11-24 | 宁波海大嘉华汽车零部件制造有限公司 | A kind of foldable vehicle water pump mounting bracket |
| CN107387222B (en) * | 2017-09-01 | 2019-07-26 | 宁波海大嘉华汽车零部件制造有限公司 | A kind of foldable vehicle water pump mounting bracket |
| CN110102518A (en) * | 2019-05-20 | 2019-08-09 | 武汉宜贝思智能有限公司 | A kind of clearance-type positive/negative-pressure valve actuating mechanism |
| CN110821735A (en) * | 2019-11-04 | 2020-02-21 | 大连双龙泵业制造有限公司 | Novel hydraulic turbine mechanical sealing device |
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Application publication date: 20170829 |