CN209067540U - A kind of high-efficiency multi-stage resistance seals device for centrifugal blower - Google Patents
A kind of high-efficiency multi-stage resistance seals device for centrifugal blower Download PDFInfo
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- CN209067540U CN209067540U CN201821728997.2U CN201821728997U CN209067540U CN 209067540 U CN209067540 U CN 209067540U CN 201821728997 U CN201821728997 U CN 201821728997U CN 209067540 U CN209067540 U CN 209067540U
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Abstract
The utility model provides a kind of high-efficiency multi-stage resistance seals device for centrifugal blower, it include: upper seal, lower seal, upper non-asbestos oil-resistant high-temperature disk stalk, lower non-asbestos oil-resistant high-temperature disk stalk and at least two first bolt arrangements, upper seal and lower seal are semi-circular shape, upper seal inner wall depression forms the upper mounting groove of semi-circular shape, non-asbestos oil-resistant high-temperature disk stalk is installed in upper mounting groove, the lower mounting groove of lower seal inner wall depression formation semi-circular shape, lower non-asbestos oil-resistant high-temperature disk stalk is installed in upper and lower mounting groove, upper seal and lower seal pass through the second bolt arrangement and connect with the connecting flange on centrifugal fan casing, upper seal and lower seal are looped around outside the main shaft of centrifugal blower.High-efficiency multi-stage resistance seals device for centrifugal blower solve the problems, such as in the prior art because teflon seal piece be ring-type cause during installation teflon seal piece with respect to main axle moving due to wear.
Description
Technical field
The utility model relates to blowers, and in particular to a kind of high-efficiency multi-stage resistance seals device for centrifugal blower.
Background technique
Disclose that a kind of application No. is the blower fan main shaft sealing device of CN201520522339.8, the sealings in Chinese patent
Device includes: the seal receptacle being sleeved on blower fan main shaft and the co-axially fixed sealing cover of the seal receptacle, in the seal receptacle and institute
It states and opens up annular seal groove on the inner wall of blower fan main shaft contact, several annular polytetrafluoroethyl-nes spaced apart are set in the seal groove
Alkene diaphragm seal.Although realizing sealing to a certain extent, which is had the disadvantage in that
Multiple tracks teflon seal piece is used in the sealing device, utilizes the toughness and lubricity of polytetrafluoroethylene material
So that pressure pushes tight main shaft in blower, but since teflon seal piece is ring-type, it is required that poly- four when installation
Vinyl fluoride diaphragm seal moves on the direction parallel with main shaft relative to main shaft and teflon seal piece is caused to be prone to wear, and leads
Poor sealing effect is caused, the problem that service life is not grown occurs.
Utility model content
The utility model will provide a kind of high-efficiency multi-stage resistance seals device for centrifugal blower, solve in the prior art
Because teflon seal piece be ring-type cause during installation teflon seal piece with respect to main axle moving due to wear the problem of.
To achieve the above object, the utility model uses the following technical solution:
A kind of high-efficiency multi-stage resistance seals device for centrifugal blower, comprising: upper seal, lower seal, upper non-stone
Cotton oil-resistant high-temperature disk stalk, lower non-asbestos oil-resistant high-temperature disk stalk and at least two first bolt arrangements, upper seal and under
Seal is semi-circular shape, and upper seal inner wall depression forms the upper mounting groove of semi-circular shape, is equipped in upper mounting groove
Non-asbestos oil-resistant high-temperature disk stalk, lower seal inner wall depression form the lower mounting groove of semi-circular shape, installation in upper and lower mounting groove
There is lower non-asbestos oil-resistant high-temperature disk to obstruct, upper seal and lower seal pass through the second bolt arrangement and centrifugal fan casing
On connecting flange connection, upper seal and lower seal be looped around outside the main shaft of centrifugal blower, upper seal and lower sealing
It is connected between body at least through two first bolt arrangements, upper non-asbestos oil-resistant high-temperature disk stalk is pressed on outside main shaft by upper seal
Wall, lower non-asbestos oil-resistant high-temperature disk stalk are pressed on spindle outer wall by lower seal.
Compared with the prior art, the utility model has the following beneficial effects:
1) by the way that teflon seal piece is changed to non-asbestos oil-resistant high-temperature disk stalk, oil resistant and high temperature resistant are improved
Performance extends the service life of non-asbestos oil-resistant high-temperature disk stalk, is conducive to the use cost for saving blower；
2) cricoid non-asbestos oil-resistant high-temperature disk is obstructed into dimidiation, cricoid seal is also classified into two halves, realized
Disposably upper seal, lower seal, upper non-asbestos oil-resistant high-temperature disk stalk and lower non-asbestos oil-resistant high-temperature disk are obstructed
Be mounted on the designated position of main shaft, be disposably mounted on by connecting flange, avoid because upper non-asbestos oil-resistant high-temperature disk obstruct with
And lower non-asbestos oil-resistant high-temperature disk stalk leads to upper non-asbestos oil-resistant high-temperature disk stalk and lower non-asbestos with respect to main axle moving
The stalk abrasion of oil-resistant high-temperature disk ensure that upper non-asbestos oil-resistant high-temperature disk stalk and lower non-asbestos oil-resistant high-temperature disk after installation
Stalk and the compactness of main shaft, ensure that sealing effect, and extend non-asbestos oil-resistant high-temperature disk stalk and lower non-asbestos is resistance to
The service life of oily high temperature resistant disk stalk, more has the market competitiveness.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the cross-sectional view after the high-efficiency multi-stage resistance seals device installation for centrifugal blower；
Fig. 2 is the left view in Fig. 1 for the high-efficiency multi-stage resistance seals device of centrifugal blower.
Appended drawing reference: upper seal 1, ontology 11, arc block 12, the first protrusion 13, the second protrusion 14, lower seal 2, on
Non-asbestos oil-resistant high-temperature disk stalk 3, lower non-asbestos oil-resistant high-temperature disk obstruct the 4, first bolt arrangement 5, connecting flange 6, main shaft 7,
Second bolt arrangement 8.
Specific embodiment
In order to make technological means of the utility model, creation characteristic, reach purpose and effect is more clear and is easy to
Understand, the utility model be further elaborated with reference to the accompanying drawings and detailed description:
As shown in Figure 1 and Figure 2, the utility model proposes a kind of high-efficiency multi-stage resistance seals dresses for centrifugal blower
Set, comprising: upper seal 1, lower seal 2, upper non-asbestos oil-resistant high-temperature disk stalk 3, lower non-asbestos oil-resistant high-temperature disk stalk 4 with
And at least two first bolt arrangements 5, upper seal 1 and lower seal 2 are semi-circular shape, upper 1 inner wall depression shape of seal
At the upper mounting groove of semi-circular shape, non-asbestos oil-resistant high-temperature disk stalk 3 is installed, 2 inner wall of lower seal is recessed in upper mounting groove
The lower mounting groove for forming semi-circular shape is fallen into, lower non-asbestos oil-resistant high-temperature disk stalk 4, upper seal 1 are installed in upper and lower mounting groove
And lower seal 2 is connect with the connecting flange 6 on centrifugal fan casing by the second bolt arrangement 8, upper seal 1 and
Lower seal 2 is looped around outside the main shaft 7 of centrifugal blower, at least through two first bolt knots between upper seal 1 and lower seal 2
Structure 5 connects, and upper non-asbestos oil-resistant high-temperature disk stalk 3 is pressed on 7 outer wall of main shaft, lower non-asbestos oil-resistant high-temperature by upper seal 1
Disk stalk 4 is pressed on 7 outer wall of main shaft by lower seal 2.
Upper seal 1 and lower seal 2 are mounted on connecting flange 6 by the second bolt arrangement 8 for convenience, kept away
Exempt to cause the rotation of the second bolt arrangement 8 too long because lower seal 2 and 2 edge of lower seal are too thick, upper seal 1 and under
Seal 2 includes: ontology 11 and arc block 12, in upper sealing block ontology 11 and arc block 12 in production integrally at
Type, ontology 11 and arc block 12 are integrally formed in production in lower sealing block, and ontology 11 and arc block 12 are semicircular ring
Shape, the end face that the end face and arc block 12 that ontology 11 is close to connecting flange 6 are close to connecting flange 6 in one plane, this
The height of body 11 is greater than the height of arc block 12, so that lower seal 2 and 2 edge of lower seal are relatively thin, arc block 12 is surround
Outside ontology 11, arc block 12 is used to connect by the second bolt arrangement 8 with connecting flange 6；Upper 1 ontology 11 of seal is close under
Envelope 2 ontology 11 of body forms an annulus after fastening, upper 1 arc block 12 of seal is also formed after fastening with 2 arc block 12 of lower seal
One annulus.
The installation of first bolt arrangement 5 for convenience, and the first bolt arrangement 5 is avoided to influence upper seal 1 and lower sealing
The intensity of body 2, upper 1 ontology 11 of seal are recessed to form two notches away from the side of lower seal 2, and two notch inner wall depressions are formed
The first screw hole extended to lower seal 2,2 ontology 11 of lower seal are recessed to form second close to the face of upper 1 ontology 11 of seal
Screw hole, every one first screw hole are corresponding with one second screw hole, and every a pair of first screw hole inner wall and the second screw hole inner wall are with one
One bolt arrangement 5 is threadedly coupled.
In order to avoid leading to lower seal 2 and upper sealing due to lower seal 2 and the generation relative rotation of upper seal 1
Gap is larger after body 1 fastens, lower seal 2 close to the both ends of upper seal 1 it is prominent after have the first protrusion 13, lower seal 2
Both ends close to upper seal 1 be recesseds and have the first groove, and the first groove is located at by the first protrusion 13, and first is recessed and first is convex
The junction in portion 13 is formed with first step；Upper seal 1 close to the both ends of lower seal 2 it is prominent after have the second protrusion 14,
Upper seal 1 is recessed close to the both ends of lower seal 2 the second groove, and the second groove is located at by the second protrusion 14, and second is recessed
It falls into and is formed with second step with the junction of the second protrusion 14；First groove is inserted into for the second protrusion 14, and the second groove supplies first
Protrusion 13 is inserted into, and first step is close to second step after lower seal 2 is fastened with upper seal 1, first step and second
Step, which is mutually drawn close, can limit lower seal 2 relative to the upper rotation of seal 1, and surface is sent out because of lower seal 2 and upper seal 1
It gives birth to relative rotation and causes gap after lower seal 2 and the fastening of upper seal 1 larger, avoid influencing sealing effect.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (3)
1. a kind of high-efficiency multi-stage resistance seals device for centrifugal blower characterized by comprising upper seal, lower sealing
Body, upper non-asbestos oil-resistant high-temperature disk stalk, lower non-asbestos oil-resistant high-temperature disk stalk and at least two first bolt arrangements, upper sealing
Body and lower seal are semi-circular shape, the upper mounting groove of upper seal inner wall depression formation semi-circular shape, in upper mounting groove
Non-asbestos oil-resistant high-temperature disk stalk is installed, lower seal inner wall depression forms the lower mounting groove of semi-circular shape, installs up and down
Lower non-asbestos oil-resistant high-temperature disk stalk is installed, upper seal and lower seal pass through the second bolt arrangement and centrifugation in slot
Connecting flange connection on fan casing, upper seal and lower seal are looped around outside the main shaft of centrifugal blower, upper seal
It is connected between lower seal at least through two first bolt arrangements, upper non-asbestos oil-resistant high-temperature disk stalk is compressed by upper seal
In spindle outer wall, lower non-asbestos oil-resistant high-temperature disk stalk is pressed on spindle outer wall by lower seal.
2. a kind of high-efficiency multi-stage resistance seals device for centrifugal blower according to claim 1, which is characterized in that on
Seal and lower seal include: ontology and arc block, and ontology and arc block are semi-circular shape, ontology with connect
In one plane, the height of ontology is greater than arc block for the end face that the end face and arc block that flange is close to are close to connecting flange
Height, arc block are looped around this in vitro, and arc block is used to connect by the second bolt arrangement with connecting flange；
Upper seal ontology and lower seal ontology form an annulus, upper seal arc block and lower seal arc block after fastening
Also an annulus is formed after fastening.
3. a kind of high-efficiency multi-stage resistance seals device for centrifugal blower according to claim 2, which is characterized in that on
Seal ontology is recessed to form two notches away from the side of lower seal, and two notch inner wall depressions are formed to lower seal extension
First screw hole, lower seal ontology are recessed to form the second screw hole close to the face of upper seal ontology, and every one first screw hole is corresponding
There is one second screw hole, every a pair of first screw hole inner wall and the second screw hole inner wall are threadedly coupled with one first bolt arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821728997.2U CN209067540U (en) | 2018-10-22 | 2018-10-22 | A kind of high-efficiency multi-stage resistance seals device for centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821728997.2U CN209067540U (en) | 2018-10-22 | 2018-10-22 | A kind of high-efficiency multi-stage resistance seals device for centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209067540U true CN209067540U (en) | 2019-07-05 |
Family
ID=67095868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821728997.2U Active CN209067540U (en) | 2018-10-22 | 2018-10-22 | A kind of high-efficiency multi-stage resistance seals device for centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209067540U (en) |
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2018
- 2018-10-22 CN CN201821728997.2U patent/CN209067540U/en active Active
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