CN208816678U - A kind of centrifugal blower gas sealing structure - Google Patents
A kind of centrifugal blower gas sealing structure Download PDFInfo
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- CN208816678U CN208816678U CN201821662210.7U CN201821662210U CN208816678U CN 208816678 U CN208816678 U CN 208816678U CN 201821662210 U CN201821662210 U CN 201821662210U CN 208816678 U CN208816678 U CN 208816678U
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- seal receptacle
- axis
- sealing
- nut
- packing
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Abstract
The utility model discloses a kind of centrifugal blower gas sealing structures, for sealing axis and cabinet, axis passes through cabinet, bearing is equipped between axis and cabinet, it further include seal receptacle, packing, oil sealing, nut and sealing ring, seal receptacle connects cabinet, sealing ring is set between seal receptacle and cabinet, packing, oil sealing is superposed between seal receptacle and axis, seal receptacle one end is equipped with seal receptacle internal projection, the other end is connected through a screw thread nut, nut connects packing, seal receptacle internal projection connects oil sealing, the locking device for preventing nut loosening is additionally provided between nut and seal receptacle, the outer surface of axis is additionally provided with electroplated layer.The utility model is able to ascend the sealing performance between axis and cabinet, and packing that multiple alternatings are superposed, oil sealing are squeezed the leakproofness that both can enhance between axis by rotating nuts.The electroplated layer of axis is able to ascend the smoothness of axis outer surface, keeps the outer surface of axis more smooth, reduces abrasion of the axis for packing, oil sealing.
Description
Technical field
The utility model relates to a kind of centrifugal blower gas sealing structures, belong to chemical machinery technical field.
Background technique
Centrifugal blower in chemical machinery, mainly with burning with exhaust gas to be extracted into boiler, due to being the centrifugal blower
The particularity of gas is conveyed, therefore the sealing performance at the centrifugal blower axle center sealing is required extremely stringent.Once axle center
It is easy leakage exhaust gas at sealing, the health of staff can be seriously threatened, influence environment.In view of the foregoing, chemical industry
The centrifugal blower of machinery field application has extremely strict requirements, one side leakproofness for the sealing performance at the sealing of axle center
It can want excellent, be able to bear biggish gas pressure；On the other hand making for equipment is also taken into account while guaranteeing sealing performance
Use the service life.
Utility model content
To solve the deficiencies in the prior art, the purpose of this utility model is to provide a kind of centrifugal blower air seal knots
Structure.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
A kind of centrifugal blower gas sealing structure, for sealing axis and cabinet, axis passes through cabinet, is equipped between axis and cabinet
Bearing, it is characterised in that: further include seal receptacle, packing, oil sealing, nut and sealing ring, seal receptacle connects cabinet, sealing ring setting
Between seal receptacle and cabinet, packing, oil sealing are superposed between seal receptacle and axis, and seal receptacle one end is equipped with seal receptacle convex
It rises, the other end is connected through a screw thread nut, and nut connects packing, and seal receptacle internal projection connects oil sealing, between nut and seal receptacle
It is additionally provided with the locking device for preventing nut loosening, the outer surface of axis is additionally provided with electroplated layer.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that packing, oil sealing
Between be additionally provided with washer, inside diameter of gasket is greater than the diameter of axis, and washer outer connects the inner wall of seal receptacle.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that the material of washer
It is nylon or polytetrafluoroethylene (PTFE).
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that packing, oil sealing
There are three, packing, oil sealing are arranged alternately.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that sealing ring is O
Type sealing ring, there are two sealing rings, and two sealing rings are arranged concentrically.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that oil sealing is PTFE
Oil sealing.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that locking device is
Locking key, the end of seal receptacle are equipped with seal receptacle locking groove, and the end of nut is equipped with nut locking groove, and stop is keyed seal receptacle
Locking groove and nut locking groove, locking key are connected by screw to seal receptacle locking groove.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that screw has two
It is a.
As a kind of prioritization scheme, a kind of centrifugal blower gas sealing structure above-mentioned, which is characterized in that seal receptacle stop
There are four slots, and the spacing of adjacent seals seat locking groove is unequal, and there are six nut locking grooves, and six nut locking grooves are along nut
Circumferentially it is uniformly distributed.
The utility model it is achieved the utility model has the advantages that
The utility model is able to ascend the sealing performance between axis and cabinet, is set multiple alternately superpositions by rotating nuts
Packing, the oil sealing set squeeze the leakproofness that both can enhance between axis, and washer can squeeze packing and oil sealing, further increase
Strong sealing performance.The electroplated layer of axis is able to ascend the smoothness of axis outer surface, keeps the outer surface of axis more smooth, reduce axis for
The abrasion of packing, oil sealing.
Detailed description of the invention
Fig. 1 is the utility model of the whole structure diagram；
Fig. 2 is the utility model locking device structure chart；
The meaning of appended drawing reference in figure: 1- cabinet；2- sealing ring；3- seal receptacle；4- nut；5- locking key；6- axis；7- axis
It holds；8- packing；9- oil sealing；10- washer；11- cabinet boss；31- seal receptacle internal projection；41- nut locking groove；51- screw；
32- seal receptacle locking groove.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this
The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
Present embodiment discloses a kind of centrifugal blower gas sealing structures as shown in Figure 1:, for sealing axis 6 and centrifugation wind
The cabinet 1 of machine, axis 6 pass through cabinet 1, and bearing 7 is equipped between axis 6 and cabinet 1, further includes seal receptacle 3, packing 8, oil sealing 9, nut
4 and sealing ring 2, seal receptacle 3 connects cabinet 1, and sealing ring 2 is set between seal receptacle 3 and cabinet 1, and packing 8, the superposition of oil sealing 9 are set
It is placed between seal receptacle 3 and axis 6,3 one end of seal receptacle is equipped with seal receptacle internal projection 31, and the other end is connected through a screw thread nut 4, spiral shell
Mother 4 connects packing 8, and seal receptacle internal projection 31 connects oil sealing 9, is additionally provided between nut 4 and seal receptacle 3 for preventing nut 4 loose
The outer surface of dynamic locking device, axis 6 is additionally provided with electroplated layer.Electroplated layer is able to ascend the smoothness of 6 outer surface of axis, makes axis 6
Outer surface is more smooth, reduces abrasion of the axis 6 for packing 8, oil sealing 9.
Washer 10 is additionally provided between packing 8, oil sealing 9,10 internal diameter of washer is greater than the diameter of axis 6, and the connection of 10 outer of washer is close
Seal the inner wall of seat 3, that is to say, that the outer wall of washer 10 is bonded with the inner wall of seal receptacle 3, but the inner wall of washer 10 has with axis 6
A certain distance, the two are that can squeeze packing 8 and oil sealing 9 when fastening by nut 4 not in contact with, the effect of washer 10,
Enhance sealing performance, and the position squeezed is in the outer ring of packing 8 and oil sealing 9.
The preferred nylon of the material of washer 10 or polytetrafluoroethylene (PTFE).Nylon with or polytetrafluoroethylene (PTFE) belong to self-lubricating solid material
Material, can be avoided and cause to wear to axis 6.
There are three the packing 8, oil sealing 9 of the present embodiment are equal, multiple packings 8, oil sealing 9 are arranged alternately and are able to ascend leakproofness
Can, avoid internal gas from revealing.
Specifically, the sealing ring 2 of the present embodiment is O-ring seal, there are two sealing rings 2, and two sealing rings 2 are set with one heart
It sets.
The preferred PTFE oil sealing (polytetrafluoroethyloil oil seals) of oil sealing 9.
In conjunction with Fig. 1 and Fig. 2: locking device is locking key 5, and the end of seal receptacle 3 is equipped with seal receptacle locking groove 32, nut 4
End be equipped with nut locking groove 41, locking key 5 connects seal receptacle locking groove 32 and nut locking groove 41, locking key 5 and passes through spiral shell
51 connection seal receptacle locking groove 32 of nail.
Screw 51 preferably there are two.
There are four seal receptacle locking grooves 32, and the spacing of adjacent seals seat locking groove 32 is unequal, and nut locking groove 41 has
Six, six nut locking grooves 41 are circumferentially uniformly distributed along nut 4.Such purpose is can to ensure that nut 4 is rotated to any
When position, nut locking groove 41 is corresponding with the position of seal receptacle locking groove 32.
The utility model is able to ascend the sealing performance between axis 6 and cabinet 1, is folded multiple alternatings by rotating nuts 4
Add the packing 8 set, oil sealing 9 squeezes the leakproofness that both can enhance between axis 6, washer 10 can squeeze packing 8 and oil
Envelope 9, further enhances sealing performance.The electroplated layer of axis is able to ascend the smoothness of 6 outer surface of axis, makes the outer surface of axis 6 more
It is smooth, reduce abrasion of the axis 6 for packing 8, oil sealing 9.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (9)
1. a kind of centrifugal blower gas sealing structure, for sealing axis (6) and cabinet (1), the axis (6) passes through cabinet (1), institute
It states and is equipped with bearing (7) between axis (6) and cabinet (1), it is characterised in that: further include seal receptacle (3), packing (8), oil sealing (9), spiral shell
Female (4) and sealing ring (2), the seal receptacle (3) connect cabinet (1), and the sealing ring (2) is set to seal receptacle (3) and cabinet
(1) between, the packing (8), oil sealing (9) are superposed between seal receptacle (3) and axis (6), and described seal receptacle (3) one end is set
Have seal receptacle internal projection (31), the other end is connected through a screw thread nut (4), and the nut (4) connects packing (8), the sealing
Seat internal projection (31) connects oil sealing (9), is additionally provided between the nut (4) and seal receptacle (3) for preventing nut (4) from loosening
The outer surface of locking device, the axis (6) is additionally provided with electroplated layer.
2. a kind of centrifugal blower gas sealing structure according to claim 1, which is characterized in that the packing (8), oil sealing
(9) it is additionally provided between washer (10), washer (10) internal diameter is greater than the diameter of axis (6), and washer (10) the outer connection is close
Seal the inner wall of seat (3).
3. a kind of centrifugal blower gas sealing structure according to claim 2, which is characterized in that the material of the washer (10)
Matter is nylon or polytetrafluoroethylene (PTFE).
4. a kind of centrifugal blower gas sealing structure according to claim 1, which is characterized in that the packing (8), oil sealing
(9) there are three, packing (8), oil sealing (9) are arranged alternately.
5. a kind of centrifugal blower gas sealing structure according to claim 1, which is characterized in that the sealing ring (2) is O
Type sealing ring, there are two the sealing rings (2), and two sealing rings (2) are arranged concentrically.
6. a kind of centrifugal blower gas sealing structure according to claim 1, which is characterized in that the oil sealing (9) is
PTFE oil sealing.
7. a kind of centrifugal blower gas sealing structure according to claim 1, which is characterized in that the locking device is to stop
The end of dynamic key (5), the seal receptacle (3) is equipped with seal receptacle locking groove (32), and the end of the nut (4) is equipped with nut stop
Slot (41), locking key (5) connection seal receptacle locking groove (32) and nut locking groove (41), the locking key (5) pass through spiral shell
Follow closely (51) connection seal receptacle locking groove (32).
8. a kind of centrifugal blower gas sealing structure according to claim 7, which is characterized in that the screw (51) has two
It is a.
9. a kind of centrifugal blower gas sealing structure according to claim 7, which is characterized in that the seal receptacle locking groove
(32) there are four, the spacing of adjacent seals seat locking groove (32) is unequal, and there are six the nut locking grooves (41), six spiral shells
Female locking groove (41) is circumferentially uniformly distributed along nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662210.7U CN208816678U (en) | 2018-10-15 | 2018-10-15 | A kind of centrifugal blower gas sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821662210.7U CN208816678U (en) | 2018-10-15 | 2018-10-15 | A kind of centrifugal blower gas sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816678U true CN208816678U (en) | 2019-05-03 |
Family
ID=66279780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821662210.7U Active CN208816678U (en) | 2018-10-15 | 2018-10-15 | A kind of centrifugal blower gas sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271163A (en) * | 2019-07-16 | 2019-09-24 | 南京宁嘉机电有限公司 | Screw extruder gear case assembly and screw extruder |
-
2018
- 2018-10-15 CN CN201821662210.7U patent/CN208816678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271163A (en) * | 2019-07-16 | 2019-09-24 | 南京宁嘉机电有限公司 | Screw extruder gear case assembly and screw extruder |
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| GR01 | Patent grant |