CN201206556Y - Vacuum pressure air pump with built-in blade sealing arrangement - Google Patents
Vacuum pressure air pump with built-in blade sealing arrangement Download PDFInfo
- Publication number
- CN201206556Y CN201206556Y CNU2008200371533U CN200820037153U CN201206556Y CN 201206556 Y CN201206556 Y CN 201206556Y CN U2008200371533 U CNU2008200371533 U CN U2008200371533U CN 200820037153 U CN200820037153 U CN 200820037153U CN 201206556 Y CN201206556 Y CN 201206556Y
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- main shaft
- bearing
- air pump
- vacuum pressure
- pressure air
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- Expired - Fee Related
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Abstract
The utility model relates to a vacuum pressure air pump with a built-in knife edge sealing device. The vacuum pressure air pump comprises a transmission part arranged at one end of a main shaft, a rear chassis and a front chassis which are rotationally connected with the main shaft and forms a sealed working cavity, an air outlet pipe arranged on the rear chassis, an air inlet arranged on the front chassis, a moving wheel fixed on the main shaft, a static wheel fixed in the working cavity and matched with the moving wheel, a circular sealing socket fixed on the inner wall of the rear chassis and having a center hole from which the main shaft extends out, a sealing gasket fixed on the main shaft and hermetically matched with the sealing socket, several spaced main circular cogs arranged on one side surface of the sealing gasket opposite to the sealing socket, and several spaced circular grooves arranged on one side surface of the sealing socket opposite to the sealing gasket. The main circular cogs are embedded into the circular grooves, and the top ends of the main circular cogs are in contact with the bottom of the grooves. The vacuum pressure air pump almost stops air leakage to have better sealing effect.
Description
Technical field
The utility model relates to a kind of vacuum pressure air pump of interior dress edge seal device, belongs to the vacuum system technical field.
Background technique
At present, the vacuum pressure air pump mainly adopts Comb Labyrinth Seals, relies on the teeth groove slit that gas is dammed, leak thereby reduce, reach the purpose of sealing, but owing to be non-contact seal, even increase the labyrinth number of teeth, take to bleed or the inflation means, also be difficult to accomplish not leak.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of good sealing effect is provided, stop gas leakage, make air pump obtain the vacuum pressure air pump of the interior dress edge seal device of more efficient and pressure stable and flow.
The technological scheme that provides according to the utility model, at main shaft one end the transmission unit is set, on main shaft, be provided with the back cabinet and the front housing that are rotationally connected with it, back cabinet and front housing form the working cavity of sealing, on back cabinet, be provided with steam outlet pipe, the mmi machine shell is provided with suction port, on main shaft, be fixed with driving wheel, being provided with cooperate with driving wheel quiet at this working cavity internal fixation takes turns, be fixed with circular sealing seat at the back cabinet inwall, described main shaft stretches out in the center hole of sealing seat, on main shaft, be fixed with the sealing gasket that is sealed and matched with sealing seat, face the main ring shape fin that is provided with the setting of some intervals on the side surface of sealing seat at sealing gasket, be provided with the annular recess that some intervals are provided with on the side surface of sealed seat surface to sealing gasket, described main ring shape fin embeds in the annular recess and the top of its main ring shape fin contacts with the groove bottom of annular recess.The transverse section shape triangular in shape of described main ring shape fin.
In the face of being provided with the secondary ring shape fin that some intervals are provided with on the side surface of sealing seat, the top of secondary ring shape fin contacts with sealing seat is surperficial at sealing gasket, and secondary ring shape fin and main ring shape fin are set in distance.The transverse section shape triangular in shape of described secondary ring shape fin.
Described transmission unit comprises the drive wheel that is connected with main shaft by key, spindle jacket between drive wheel and the back cabinet is connected to bearing support, bearing support is fixed on the back cabinet, and bearing support the inner rests on and is socketed on the outer sealing gasket of main shaft, be provided with sealing gasket between bearing support and the back cabinet, in bearing support, be provided with the bearing and the bearing that are provided with at interval, outer lining ring of socket and interior lining ring on the main shaft between bearing and the bearing, described outer lining ring is fixedly connected on the bearing support, between bearing support and drive wheel, be provided with the bearing cap that is fixedly installed on the bearing support, this bearing cap rests on the supporting bead, socket seal washer on main shaft between bearing cap and the back cabinet.
Be provided with sealing gasket outside the main shaft between bearing cap and drive wheel, outside sealing gasket, be provided with fan, and between sealing gasket and bearing cap, be provided with the seal ring that is enclosed within the main shaft outside.On the main shaft between sealing gasket and the back cabinet, be socketed with the adjusting pad.Sealing seat is fixed on the back cabinet inwall by pressing plate, and pressing plate the inner rests on the lining that is socketed on the main shaft.
Outside main shaft, be provided with lining, between back cabinet and front housing, be provided with double-screw bolt, and be provided with positioning ring driving wheel, the quiet wheel between outside back cabinet and the front housing.Be provided with bearing and bearing housing thereof between away from the main shaft of drive wheel and front housing, the bearing outside is provided with the bearing support that is fixedly connected on the front housing, and the bearing support end is provided with bearing cap, is provided with liner between bearing support and the bearing cap.
The utility model is owing to adopted sealing gasket and the labyrinth seal of the new contact type that forms of sealing seat, and the leakage of almost having stopped gas so can make air pump obtain efficient more and pressure stable and flow, obtains better sealing effect.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Fig. 2 is sealing seat and the gasket structure schematic representation in the utility model.
Fig. 3 is the structural drawing of front housing.
Fig. 4 is the A-A view of Fig. 3.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: the transmission unit is set at main shaft 2 one ends, on main shaft 2, be provided with the back cabinet 14 and front housing 7 that are rotationally connected with it, back cabinet 14 forms the working cavity that seals with front housing 7, on back cabinet 14, be provided with steam outlet pipe 37, mmi machine shell 7 is provided with suction port 36, on main shaft 2, be fixed with driving wheel 10, be provided with cooperate with driving wheel 10 quiet at this working cavity internal fixation and take turns 9, be fixed with circular sealing seat 31 at back cabinet 14 inwalls, described main shaft 2 stretches out in the center hole of sealing seat 31, on main shaft 2, be fixed with the sealing gasket 13 that is sealed and matched with sealing seat 31, face the main ring shape fin 38 that is provided with the setting of some intervals on the side surface of sealing seat 31 at sealing gasket 13, in the face of being provided with the annular recess 39 that some intervals are provided with on the side surface of sealing gasket 13, described main ring shape fin 38 embeds in the annular recess 39 and the top of its main ring shape fin 38 contacts with the groove bottom of annular recess 39 at sealing seat 31.The transverse section shape triangular in shape of described main ring shape fin 38.
In the face of being provided with the secondary ring shape fin 40 that some intervals are provided with on the side surface of sealing seat 31, the top of secondary ring shape fin 40 contacts with sealing seat 31 surfaces, and secondary ring shape fin 40 is set in distance with main ring shape fin 38 at sealing gasket 13.The transverse section shape triangular in shape of described secondary ring shape fin 40.
Described transmission unit comprises the drive wheel 22 that is connected with main shaft 2 by key 23, the main shaft 2 outer bearing supports 17 that are socketed with between drive wheel 22 and the back cabinet 14, bearing support 17 is fixed on the back cabinet 14, and bearing support 17 the inners rest on the sealing gasket 15 that is socketed on outside the main shaft 2, be provided with sealing gasket 28 between bearing support 17 and the back cabinet 14, in bearing support 17, be provided with the bearing 24 and bearing 16 that are provided with at interval, outer lining ring 27 of socket and interior lining ring 26 on the main shaft 2 between bearing 24 and the bearing 16, described outer lining ring 27 is fixedly connected on the bearing support 17, between bearing support 17 and drive wheel 22, be provided with the bearing cap 25 that is fixedly installed on the bearing support 17, this bearing cap 25 rests on the supporting bead 20, socket seal washer 28 on main shaft 2 between bearing cap 25 and the back cabinet 14.
Be provided with sealing gasket 21 outside the main shaft 2 between bearing cap 25 and drive wheel 22, outside sealing gasket 21, be provided with fan 18, and between sealing gasket 21 and bearing cap 25, be provided with the seal ring 19 that is enclosed within main shaft 2 outsides.On the main shaft 2 between sealing gasket 13 and the back cabinet 14, be socketed with and regulate pad 29.
22 rotations of motor drives drive wheel, drive wheel 22 rotates by the driving wheel 19 that key 23 drives on main shaft 2 and the main shaft 2, and the suction port on the mmi machine shell 7 36 sucks gas (shown in the arrow among Fig. 4), produce the air-flow that has certain pressure and flow in working cavity, the steam outlet pipe 37 of this air-flow on back cabinet 14 is discharged from.
The utility model is owing to adopt the annular recess 39 formation edge seals of main ring shape fin 38 with the sealing seat 31 of sealing gasket 13, and the top of main ring shape fin 38 becomes the edge of a knife, thereby obtains better sealing effect.For further enhanced leaktightness effect, so face the secondary ring shape fin 40 that is provided with the setting of some intervals on the side surface of sealing seat 31 at sealing gasket 13, the top of secondary ring shape fin 40 contacts with sealing seat 31 surfaces, and secondary ring shape fin 40 is set in distance with main ring shape fin 38, make this place be sealed into the labyrinth seal of contact type, almost stopped the leakage of gas, so can make air pump obtain efficient more and pressure stable and flow.
Claims (10)
1, the vacuum pressure air pump of dress edge seal device in a kind of, be included in the transmission unit that main shaft (2) one ends are provided with, on main shaft (2), be provided with the back cabinet (14) and front housing (7) that are rotationally connected with it, back cabinet (14) forms the working cavity that seals with front housing (7), on back cabinet (14), be provided with steam outlet pipe (37), mmi machine shell (7) is provided with suction port (36), on main shaft (2), be fixed with driving wheel (10), be provided with quiet wheel the (9) that cooperates with driving wheel (10) at this working cavity internal fixation, be fixed with circular sealing seat (31) at back cabinet (14) inwall, described main shaft (2) stretches out in the center hole of sealing seat (31), on main shaft (2), be fixed with the sealing gasket (13) that is sealed and matched with sealing seat (31), it is characterized in that: face at sealing gasket (13) and be provided with the main ring shape fin (38) that some intervals are provided with on the side surface of sealing seat (31), in the face of being provided with the annular recess (39) that some intervals are provided with on the side surface of sealing gasket (13), described main ring shape fin (38) embeds in the annular recess (39) and the top of its main ring shape fin (38) contacts with the groove bottom of annular recess (39) at sealing seat (31).
2, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 1 is characterized in that: the transverse section shape triangular in shape of described main ring shape fin (38).
3, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 1, it is characterized in that: face at sealing gasket (13) and be provided with the secondary ring shape fin (40) that some intervals are provided with on the side surface of sealing seat (31), the top of secondary ring shape fin (40) contacts with sealing seat (31) surface, and secondary ring shape fin (40) is set in distance with main ring shape fin (38).
4, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 3 is characterized in that: the transverse section shape triangular in shape of described secondary ring shape fin (40).
5, the vacuum pressure air pump of dress edge seal device in as claimed in claim 1, it is characterized in that: described transmission unit comprises the drive wheel (22) that is connected with main shaft (2) by key (23), the outer bearing support (17) that is socketed with of main shaft (2) between drive wheel (22) and the back cabinet (14), bearing support (17) is fixed on the back cabinet (14), and bearing support (17) the inner rests on and is socketed on the outer sealing gasket (15) of main shaft (2), be provided with sealing gasket (28) between bearing support (17) and the back cabinet (14), in bearing support (17), be provided with the bearing (24) and bearing (16) that are provided with at interval, main shaft (2) between bearing (24) and the bearing (16) is gone up outer lining ring (27) of socket and interior lining ring (26), described outer lining ring (27) is fixedly connected on the bearing support (17), between bearing support (17) and drive wheel (22), be provided with the bearing cap (25) that is fixedly installed on the bearing support (17), this bearing cap (25) rests on the supporting bead (20), and main shaft (2) is gone up socket seal washer (28) between bearing cap (25) and back cabinet (14).
6, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 5, it is characterized in that: be provided with sealing gasket (21) outside the main shaft (2) between bearing cap (25) and drive wheel (22), outside sealing gasket (21), be provided with fan (18), and between sealing gasket (21) and bearing cap (25), be provided with the seal ring (19) that is enclosed within main shaft (2) outside.
7, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 1 is characterized in that: be socketed with on the main shaft (2) between sealing gasket (13) and the back cabinet (14) and regulate pad (29).
8, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 1, it is characterized in that: sealing seat (31) is fixed on back cabinet (14) inwall by pressing plate (32), and pressing plate (32) the inner rests on the lining (30) that is socketed on the main shaft (2).
9, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 1, it is characterized in that: outside main shaft (2), be provided with lining (6), between back cabinet (14) and front housing (7), be provided with double-screw bolt (12), and between driving wheel (10), the outside back cabinet of quiet wheel the (9) (14) and front housing (7), be provided with positioning ring (8).
10, the vacuum pressure air pump of interior dress edge seal device as claimed in claim 1, it is characterized in that: between away from the main shaft (2) of drive wheel (22) and front housing (7), be provided with bearing (3) and bearing housing (33) thereof, bearing (3) outside is provided with the bearing support (34) that is fixedly connected on the front housing (7), bearing support (34) end is provided with bearing cap (1), is provided with liner (35) between bearing support (34) and the bearing cap (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200371533U CN201206556Y (en) | 2008-05-30 | 2008-05-30 | Vacuum pressure air pump with built-in blade sealing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200371533U CN201206556Y (en) | 2008-05-30 | 2008-05-30 | Vacuum pressure air pump with built-in blade sealing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206556Y true CN201206556Y (en) | 2009-03-11 |
Family
ID=40465619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200371533U Expired - Fee Related CN201206556Y (en) | 2008-05-30 | 2008-05-30 | Vacuum pressure air pump with built-in blade sealing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206556Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072322A (en) * | 2011-01-31 | 2011-05-25 | 江苏金鹰流体机械有限公司 | Combined type sealing device with double end faces |
| CN106089760A (en) * | 2016-08-02 | 2016-11-09 | 美佳德科技（无锡）有限公司 | heat insulation vortex pump |
| CN106089759A (en) * | 2016-08-02 | 2016-11-09 | 美佳德科技（无锡）有限公司 | heat insulation vortex pump |
| CN107448421A (en) * | 2017-10-10 | 2017-12-08 | 美佳德科技（无锡）有限公司 | Centrifugal air pump with rectangular seal |
| CN107542702A (en) * | 2017-10-10 | 2018-01-05 | 美佳德科技（无锡）有限公司 | Centrifugal air pump with edge seal structure |
| CN106050690B (en) * | 2016-08-02 | 2018-09-25 | 美佳德科技（无锡）有限公司 | Centrifugal air pump |
| CN111701523A (en) * | 2020-06-28 | 2020-09-25 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
-
2008
- 2008-05-30 CN CNU2008200371533U patent/CN201206556Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072322A (en) * | 2011-01-31 | 2011-05-25 | 江苏金鹰流体机械有限公司 | Combined type sealing device with double end faces |
| CN106089760A (en) * | 2016-08-02 | 2016-11-09 | 美佳德科技（无锡）有限公司 | heat insulation vortex pump |
| CN106089759A (en) * | 2016-08-02 | 2016-11-09 | 美佳德科技（无锡）有限公司 | heat insulation vortex pump |
| CN106050690B (en) * | 2016-08-02 | 2018-09-25 | 美佳德科技（无锡）有限公司 | Centrifugal air pump |
| CN107448421A (en) * | 2017-10-10 | 2017-12-08 | 美佳德科技（无锡）有限公司 | Centrifugal air pump with rectangular seal |
| CN107542702A (en) * | 2017-10-10 | 2018-01-05 | 美佳德科技（无锡）有限公司 | Centrifugal air pump with edge seal structure |
| CN111701523A (en) * | 2020-06-28 | 2020-09-25 | 中国兵器装备集团自动化研究所 | Kneading safety transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20120530 |