CN107100885A - A kind of self-adapting seal part - Google Patents
A kind of self-adapting seal part Download PDFInfo
- Publication number
- CN107100885A CN107100885A CN201710360880.7A CN201710360880A CN107100885A CN 107100885 A CN107100885 A CN 107100885A CN 201710360880 A CN201710360880 A CN 201710360880A CN 107100885 A CN107100885 A CN 107100885A
- Authority
- CN
- China
- Prior art keywords
- sealing
- self
- connecting portion
- seal part
- adapting seal
- 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
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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
- F04D29/16—Sealings between pressure and suction sides
- F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a kind of self-adapting seal part, belong to field of mechanical technique.It solves after existing seal long-time use that easily to produce gap excessive and the problem of produce leakage.A kind of this self-adapting seal part, including being cylindrical in shape and using the body of elastomeric material, one end of body be fixedly connected with the pump housing and outward lateral bending folding connecting portion, the other end of body is the sealing of tubular, the inside of one end of body is provided with support member, body is wrapped in the outside of described support member, and one end and the supporting part of body are provided with the connecting hole run through.A kind of this self-adapting seal part has difficulty of processing relatively low and makes the preferable advantage of performance of water pump.
Description
Technical field
The invention belongs to field of mechanical technique, it is related to a kind of seal, particularly a kind of self-adapting seal part.
Background technology
It is well known that water pump is in operation process, because impeller is rotatable parts, the pump housing is fixture, must between them
Gap must be left, and the two ends in gap have pressure differential, thus cause leakage.In order to prevent unnecessary leakage, it is necessary to
Gap location sets seal.And the sealing structure used at present in pump technology at choma is mainly clearance seal, i.e., by section
Ebb interval reaches sealing purpose.Its sealing effectiveness is relevant with throttle clearance size and shape.Gap is smaller, effect is better.But
Gap is too small, will produce and vibrates and cause the friction damage between impeller and the pump housing.Later pump industry improves choma structure, in pump housing choma
Cast iron sealing ring or copper band are installed in position, serve as wear-out part, and only this part need to be changed after abrasion, it is to avoid the pump housing, the overall mill of impeller
Damage.But volumetric loss is still produced due to the presence in gap after improving so that the suction of pump, lift, capacity are without being increased.It is special
When not being same day drought decline of groundwater level, because choma gap produces leakage so that centrifugal pump, self priming pump suction are inadequate, it is impossible to full
Sufficient user requires.
A kind of sealing device for centrifugal pump impeller wear ring (application number as disclosed in Chinese patent literature：
201020225527.1) the housing choma that, including housing choma and impeller port ring, housing choma is included positioned at different step surfaces is straight
Seal section and housing choma labyrinth seal section, impeller port ring include the straight seal section of impeller port ring and impeller positioned at different step surfaces
Choma labyrinth seal section, the straight seal section of housing choma and impeller port ring labyrinth seal section cooperatively form labyrinth seal, housing choma
Labyrinth seal section and the straight seal section of impeller port ring cooperatively form labyrinth seal.But the sealing device for centrifugal pump impeller wear ring difficult processing
Spend after higher and long-time use, gap is excessive and produces leakage so that centrifugal pump, self priming pump suction are inadequate, it is impossible to meet and use
Family is required.
The content of the invention
The purpose of the present invention is there is above mentioned problem for existing technology, it is proposed that a kind of difficulty of processing is relatively low and makes water
The preferable self-adapting seal part of performance of pump.
The purpose of the present invention can be realized by following technical proposal：A kind of self-adapting seal part, including be cylindrical in shape and adopt
With the body of elastomeric material, one end of described body is the connecting portion being fixedly connected with the pump housing and lateral bending is rolled over outward, described sheet
The other end of body is the sealing of tubular, it is characterised in that the inside of one end of described body is provided with support member, described sheet
Body is wrapped in the outside of described support member, and one end of described body is provided with the connecting hole run through with described supporting part.
In assembling, the connecting portion of this seal is connected on the pump housing of water pump by screw through connecting hole, and make leaf
The choma of wheel is inserted into sealing, and sealing end is resisted against the lateral wall of the choma of impeller.Because sealing uses rubber material
Material is made, and seal is abutted in all the time on the lateral wall of the choma of impeller, occurs clamping stagnation when being prevented effectively from wheel rotation, makes water
Pump can work well, while reducing difficulty of processing, and make the preferable advantage of performance of water pump.The pressure of sealing both sides
Difference changes and changes enclasping force, and pressure difference is bigger, and enclasping force is bigger, with adaptivity and the preferable advantage of sealing effectiveness.
In a kind of above-mentioned self-adapting seal part, described support member is cylindrical in shape, and the outer end of described support member is past
The connecting portion one of outside bending, described connecting portion one is wrapped in described connecting portion.Screw is through connecting portion one and even
Socket part, body is connected on the pump housing, with bonding strength height and the preferable advantage of sealing effectiveness.
In a kind of above-mentioned self-adapting seal part, described support member is made of metal material.Support member is using gold
Category material is made, and has the advantages that intensity is higher and service life is longer.
In a kind of above-mentioned self-adapting seal part, the tapered face of madial wall of described sealing.The inner side of sealing
The tapered face of wall, enables sealing to be resisted against the lateral wall of the choma of impeller all the time, with the preferable advantage of sealing effectiveness.
In a kind of above-mentioned self-adapting seal part, formed between the axis of described taper surface and described sealing
Angle is 5 ° to 8 °.Using above-mentioned setting, the madial wall that sealing preferably abuts in impeller port ring is set to be formed preferably
Sealing, improves the performance of water pump.
In a kind of above-mentioned self-adapting seal part, the madial wall of described sealing is equipped with sealing convex body.By close
Envelope convex body is resisted against the lateral wall of impeller port ring, improves its sealing property, has the advantages that structure is relatively simple.
In a kind of above-mentioned self-adapting seal part, the section of described sealing is in pointed shape and described sealing
Wedge angle is 26 ° to 42 °.Using above-mentioned setting, sealing is set to have intensity preferable and the preferable advantage of sealing property.
In a kind of above-mentioned self-adapting seal part, the described undulate of connecting portion one and described connecting portion is wrapped in
The outside of described connecting portion one.The undulate of connecting portion one, makes connecting portion one mutually be formed with the pump housing multi-sealed, improves it
Sealing effectiveness.
Compared with prior art, a kind of this self-adapting seal part has advantages below：
1st, because sealing is made of elastomeric material, seal is made to abut in all the time on the lateral wall of the choma of impeller,
Occur clamping stagnation when being prevented effectively from wheel rotation, enable water pump work well, while reducing difficulty of processing, and make making for water pump
With the advantage of better performances；
2nd, the tapered face of the madial wall of sealing, enables sealing to be resisted against the lateral wall of the choma of impeller all the time, tool
There is the preferable advantage of sealing effectiveness；
3rd, screw passes through connecting portion one and connecting portion, and body is connected on the pump housing, high and close with bonding strength
Seal the preferable advantage of effect；
4th, the undulate of connecting portion one, makes connecting portion one mutually be formed with the pump housing multi-sealed, improves its sealing effectiveness.
Brief description of the drawings
Fig. 1 is a kind of this assembling schematic diagram of self-adapting seal part.
Fig. 2 is the schematic cross-sectional view of this seal embodiment one.
Fig. 3 is the schematic cross-sectional view of this seal embodiment two.
Fig. 4 is the schematic cross-sectional view of this seal embodiment three.
In figure, 1, body；1a, connecting portion；1b, sealing；1c, sealing convex body；2nd, support member；2a, connecting portion one；3rd, even
Connect hole.
Embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As illustrated in fig. 1 and 2, a kind of self-adapting seal part, including the body 1 of elastomeric material is cylindrical in shape and uses, body 1
One end is the connecting portion 1a being fixedly connected with the pump housing and lateral bending is rolled over outward, and the other end of body 1 is for tubular and using elastomeric material system
Into sealing 1b, the inside of one end of body 1 is provided with is made support member 2 using metal material, and support member 2 is cylindrical in shape, support
The 2a of connecting portion one that the outer end of part 2 is rolled over for lateral bending outward, the 2a of connecting portion one are wrapped in connecting portion 1a.One end of body 1 and branch
Support part is provided with the connecting hole 3 run through.Support member 2 is made of stainless steel or aluminium alloy, with intensity is higher and service life
Longer advantage.
The sealing 1b tapered face of madial wall, the angle A formed between taper surface and sealing 1b axis is 7 °, is made
To be preferred, the angle A formed between taper surface and sealing 1b axis is 5 ° or 8 °, sealing 1b is preferably pasted
The madial wall for leaning against impeller port ring forms preferable sealing, improves the performance of water pump.
Sealing 1b section is 35 ° in pointed shape and sealing 1b wedge angle B, as preferred, wedge angle B be 26 ° or
42 °, sealing 1b is set to have intensity preferable and the preferable advantage of sealing property.
In assembling, by screw through the 2a of connecting portion one and connecting portion 1a connecting hole 3 by the connecting portion of this seal
1a is connected on the pump housing of water pump, and the choma of impeller is inserted into sealing 1b, and sealing 1b ends are resisted against the mouth of impeller
The lateral wall of ring.The pressure difference of sealing 1b both sides changes and changes enclasping force, and pressure difference is bigger, and enclasping force is bigger, with adaptive
Property and the preferable advantage of sealing effectiveness.Screw passes through the 2a of connecting portion one and connecting portion 1a, and body 1 is connected on the pump housing, has
There is bonding strength high and the preferable advantage of sealing effectiveness.Because sealing 1b is made of elastomeric material, make seal all the time
On the lateral wall for the choma for abutting in impeller, occur clamping stagnation when being prevented effectively from wheel rotation, enable water pump work well, simultaneously
Difficulty of processing is reduced, and makes the preferable advantage of performance of water pump.
Embodiment two
The present embodiment is roughly the same with the structure and principle of embodiment one, and difference is：As shown in figure 3, sealing 1b
Madial wall is equipped with sealing convex body 1c, and the lateral wall of impeller port ring is resisted against by sealing convex body 1c, its sealing property is improved,
Have the advantages that structure is relatively simple.
Embodiment three
The present embodiment is roughly the same with the structure and principle of embodiment one, and difference is：As shown in figure 4, the 2a of connecting portion one
Undulate and connecting portion 1a are wrapped in the 2a of connecting portion one outside.Detent is provided with the wall of the pump housing, by the company of body 1
When socket part 1a is put into detent, the connecting portion 1a and 2a of connecting portion one connecting hole 3 and pump housing screw thread is passed through by screw
It is connected, the head extruding 2a of connecting portion one of screw makes the connecting portion 1a and the 2a of connecting portion one of undulate deploy toward outside, made
The formation of connecting portion 1a and detent is interference fitted, and realizes sealing, passes through the connecting portion 1a of undulate trough and the pump housing
The bottom land of detent mutually forms multi-sealed, improves its sealing effectiveness.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used body 1, connecting portion 1a, sealing 1b, sealing convex body 1c, support member 2, connecting portion herein
The terms such as one 2a, connecting hole 3, but it is not precluded from the possibility using other terms.Using these terms just for the sake of more square
Just the essence of the present invention is described and explained；Being construed as any additional limitation is disagreed with spirit of the present invention
The back of the body.
Claims (8)
1. a kind of self-adapting seal part, including it is cylindrical in shape and using the body (1) of elastomeric material, one end of described body (1)
For the connecting portion (1a) being fixedly connected with the pump housing and lateral bending is rolled over outward, the other end of described body (1) is the sealing of tubular
(1b), it is characterised in that the inside of one end of described body (1) is provided with support member (2), described body (1) is wrapped in institute
The outside for the support member (2) stated, one end of described body (1) is provided with the connecting hole (3) run through with described supporting part.
2. a kind of self-adapting seal part according to claim 1, it is characterised in that described support member (2) is cylindrical in shape, institute
The outer end for the support member (2) stated is the connecting portion one (2a) of lateral bending pin outward, and described connecting portion one (2a) is wrapped in described
In connecting portion (1a).
3. a kind of self-adapting seal part according to claim 1, it is characterised in that described support member (2) uses metal
Material is made.
4. a kind of self-adapting seal part according to claim 1 or 2 or 3, it is characterised in that described sealing (1b)
The tapered face of madial wall.
5. a kind of self-adapting seal part according to claim 4, it is characterised in that described taper surface and described sealing
The angle formed between the axis in portion (1b) is 5 ° to 8 °.
6. a kind of self-adapting seal part according to claim 1 or 2 or 3, it is characterised in that described sealing (1b)
Madial wall is equipped with sealing convex body (1c).
7. a kind of self-adapting seal part according to claim 1 or 2 or 3, it is characterised in that described sealing (1b)
Section is 26 ° to 42 ° in the wedge angle of pointed shape and described sealing (1b).
8. a kind of self-adapting seal part according to claim 2, it is characterised in that described connecting portion one (2a) is in wave
Shape and described connecting portion (1a) are wrapped in the outside of described connecting portion one (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360880.7A CN107100885A (en) | 2017-05-19 | 2017-05-19 | A kind of self-adapting seal part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360880.7A CN107100885A (en) | 2017-05-19 | 2017-05-19 | A kind of self-adapting seal part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100885A true CN107100885A (en) | 2017-08-29 |
Family
ID=59670003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710360880.7A Pending CN107100885A (en) | 2017-05-19 | 2017-05-19 | A kind of self-adapting seal part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100885A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1186586A (en) * | 1967-05-30 | 1970-04-02 | Dunlop Co Ltd | Improvements in Sealing Rings |
| EP0173579A1 (en) * | 1984-08-31 | 1986-03-05 | Sanden Corporation | Shaft seal for a compressor |
| CN2486751Y (en) * | 2001-07-06 | 2002-04-17 | 李济民 | pump with elastic sealing ring |
| CN2541637Y (en) * | 2002-04-09 | 2003-03-26 | 黑龙江双锅锅炉股份有限公司 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
| CN102287396A (en) * | 2011-09-22 | 2011-12-21 | 重庆华世丹机械制造有限公司 | Self-suction water pump and water seal thereof |
| CN103398020A (en) * | 2013-08-15 | 2013-11-20 | 长沙山水节能研究院有限公司 | Water pump wear-ring sealing device and wear-ring thereof |
| CN103511321A (en) * | 2012-08-03 | 2014-01-15 | 江西耐普矿机新材料股份有限公司 | Mining heavy type slurry pump with water seal arranged at suction inlet |
| CN103906953A (en) * | 2012-02-15 | 2014-07-02 | 伊格尔工业股份有限公司 | Shaft-sealing device |
| CN206801931U (en) * | 2017-05-19 | 2017-12-26 | 利欧集团浙江泵业有限公司 | A kind of self-adapting seal part |
-
2017
- 2017-05-19 CN CN201710360880.7A patent/CN107100885A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1186586A (en) * | 1967-05-30 | 1970-04-02 | Dunlop Co Ltd | Improvements in Sealing Rings |
| EP0173579A1 (en) * | 1984-08-31 | 1986-03-05 | Sanden Corporation | Shaft seal for a compressor |
| CN2486751Y (en) * | 2001-07-06 | 2002-04-17 | 李济民 | pump with elastic sealing ring |
| CN2541637Y (en) * | 2002-04-09 | 2003-03-26 | 黑龙江双锅锅炉股份有限公司 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
| CN102287396A (en) * | 2011-09-22 | 2011-12-21 | 重庆华世丹机械制造有限公司 | Self-suction water pump and water seal thereof |
| CN103906953A (en) * | 2012-02-15 | 2014-07-02 | 伊格尔工业股份有限公司 | Shaft-sealing device |
| CN103511321A (en) * | 2012-08-03 | 2014-01-15 | 江西耐普矿机新材料股份有限公司 | Mining heavy type slurry pump with water seal arranged at suction inlet |
| CN103398020A (en) * | 2013-08-15 | 2013-11-20 | 长沙山水节能研究院有限公司 | Water pump wear-ring sealing device and wear-ring thereof |
| CN206801931U (en) * | 2017-05-19 | 2017-12-26 | 利欧集团浙江泵业有限公司 | A kind of self-adapting seal part |
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