CN208330828U - Machinery sealed device of impurity pump - Google Patents
Machinery sealed device of impurity pump Download PDFInfo
- Publication number
- CN208330828U CN208330828U CN201820823288.6U CN201820823288U CN208330828U CN 208330828 U CN208330828 U CN 208330828U CN 201820823288 U CN201820823288 U CN 201820823288U CN 208330828 U CN208330828 U CN 208330828U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- outside framework
- oil seal
- framework oil
- stationary ring
- 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.)
- Expired - Fee Related
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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a kind of machinery sealed device of impurity pump, including the fixed axle sleeve being placed on pump shaft, for cooperating the rotating ring and stationary ring of sealing；The rotating ring is fixed on axle sleeve, and the stationary ring is fixed on pump case by cyclic water jacket；The stationary ring rear end is provided with counterbalance spring；The stationary ring, axle sleeve, cyclic water jacket surround flushing chamber；Outside framework oil seal is installed between the cyclic water jacket and axle sleeve；It is characterized by: position corresponding with outside framework oil seal is provided with annular convex platform on the axle sleeve, annular groove is provided on the annular convex platform；Heap is welded with hard alloy in the annular groove.Mechanically-sealing apparatus with above structure, is contacted with outside framework oil seal as contact surface using hard alloy and is sealed.Since the hardness and wearability of hard alloy are much higher than common metal, the friction bring loss between outside framework oil seal is substantially reduced, and improves the service life of axle sleeve, while improving the service life of entire mechanical seal.
Description
Technical field
The utility model relates to a kind of mechanically-sealing apparatus applied on transh pump.
Background technique
Mechanical seal is a kind of gland seal device of rotating machinery.For example centrifugal pump, centrifuge, reaction kettle and compressor etc. are set
It is standby.Since transmission shaft is applied in inside and outside equipment, in this way, the medium in equipment is logical there are a circumferential clearance between axis and equipment
It crosses the gap to leak out, if pressure is subatmospheric in equipment, air is to equipment internal leakage, it is therefore necessary to have a resistance
The gland seal device of stopping leak leakage.There are many type of axle envelope, since mechanical seal has many advantages, such as that leakage rate is few and the service life is long, so generation
Mechanical seal is in the most important sealing mode of these equipment in boundary.Mechanical seal is called end face seal, in the related mark of country
It is defined such that in standard " by least a pair of end face perpendicular to rotation axis in Fluid pressure and compensation mechanism elastic force (or magnetic
Power) effect and auxiliary seal cooperation under keep be bonded and constituted with respect to sliding prevent fluid leak device."
Existing machinery sealed device of impurity pump is all to reach sealing using outside framework oil seal and sleeve outer surface close contact
The effect of flushing water.Due to axle sleeve is continuous rotation and outside framework oil seal be it is static, the two remains relative motion, mutually rubs
It wears consumption.During phase mutual friction, sleeve outer surface still can be ground quickly in spite of the lubrication of flushing water or butter
Disfigurement is at groove.It is formed after groove, surface roughness reduces, and is further exacerbated by abrasion, starts to leak therewith.Above-mentioned mill
The speed of damage even can be more than the speed of seal wears, seriously affect the service life of mechanical seal.
Utility model content
In view of this, the present invention provides with a kind of machinery sealed device of impurity pump, built-up welding is hard on axle sleeve anchor ring
Matter alloy avoids abrasion from generating groove and leak to contact with outside framework oil seal.
In order to solve the above technical problems, the technical solution of the utility model are as follows: a kind of machinery sealed device of impurity pump, including
The fixed axle sleeve being placed on pump shaft, for cooperating the rotating ring and stationary ring of sealing；The rotating ring is fixed on axle sleeve, the stationary ring according to
It is fixed on pump case by cyclic water jacket；The stationary ring rear end is provided with counterbalance spring；The stationary ring, axle sleeve, cyclic water jacket surround
Rinse chamber；Outside framework oil seal is installed between the cyclic water jacket and axle sleeve；It is characterized by: on the axle sleeve with outside framework oil seal pair
The position answered is provided with annular convex platform, is provided with annular groove on the annular convex platform；Heap is welded with hard alloy in the annular groove.
As an improvement the hard alloy is nickel cobalt (alloy).
As an improvement the section of the annular groove is inverted trapezoidal.Since hard alloy is expensive, using cut
Face be upside-down trapezoid annular groove, not only can guarantee the area coverage of hard alloy, but also the dosage of hard alloy can be saved, reduce at
This.
The utility model has the beneficial effect that the mechanically-sealing apparatus with above structure, using hard alloy as
Contact surface is contacted with outside framework oil seal and is sealed.Since the hardness and wearability of hard alloy are much higher than common metal, with
Friction bring loss between outside framework oil seal substantially reduces, and improves the service life of axle sleeve, while improving entire machinery
The service life of sealing.The heating conduction of hard alloy is also stronger simultaneously, avoids the heat of high speed rotary grinding generation to close
The influence of sealing property.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Marked in the figure: 1 axle sleeve, 2 pump shafts, 3 rotating rings, 4 stationary rings, 5 counterbalance springs, 6 cyclic water jackets, 7 outside framework oil seals, 8 annulars
Boss, 9 hard alloy.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to specific implementation
The utility model is described in further detail for mode.
As shown in Figure 1, the utility model includes the fixed axle sleeve 2 being placed on pump shaft 1, for cooperating 3 He of rotating ring of sealing
Stationary ring 4；The rotating ring 3 is fixed on axle sleeve 2, and the stationary ring 4 is fixed on pump case by cyclic water jacket 6；4 rear end of stationary ring
It is provided with counterbalance spring 5；The stationary ring 4, axle sleeve 2, cyclic water jacket 6 surround flushing chamber；Between the cyclic water jacket 6 and axle sleeve 2
Outside framework oil seal 7 is installed；Position corresponding with outside framework oil seal 7 is provided with annular convex platform 8, the annular convex platform 8 on the axle sleeve 2
On be provided with annular groove；The section of annular groove is inverted trapezoidal.Heap is welded with hard alloy 9 in the annular groove.The hard
Alloy 9 is nickel cobalt (alloy).
When work, flushing water enters flushing chamber by water inlet.Outside framework oil seal 7 connects with the hard alloy 9 on axle sleeve 2
Touching achievees the purpose that sealing, and flushing water is avoided to leak.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (3)
1. a kind of machinery sealed device of impurity pump, including the fixed axle sleeve being placed on pump shaft, for cooperate the rotating ring sealed and quiet
Ring；The rotating ring is fixed on axle sleeve, and the stationary ring is fixed on pump case by cyclic water jacket；The stationary ring rear end is provided with benefit
Repay spring；The stationary ring, axle sleeve, cyclic water jacket surround flushing chamber；Outside framework oil seal is installed between the cyclic water jacket and axle sleeve；
It is characterized by: position corresponding with outside framework oil seal is provided with annular convex platform on the axle sleeve, ring is provided on the annular convex platform
Shape slot；Heap is welded with hard alloy in the annular groove.
2. a kind of machinery sealed device of impurity pump according to claim 1, it is characterised in that: the hard alloy is nickel
Cobalt alloy.
3. a kind of machinery sealed device of impurity pump according to claim 1, it is characterised in that: the section of the annular groove is
It is inverted trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823288.6U CN208330828U (en) | 2018-05-30 | 2018-05-30 | Machinery sealed device of impurity pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823288.6U CN208330828U (en) | 2018-05-30 | 2018-05-30 | Machinery sealed device of impurity pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330828U true CN208330828U (en) | 2019-01-04 |
Family
ID=64772276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823288.6U Expired - Fee Related CN208330828U (en) | 2018-05-30 | 2018-05-30 | Machinery sealed device of impurity pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330828U (en) |
-
2018
- 2018-05-30 CN CN201820823288.6U patent/CN208330828U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20210530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |