CN106050690B - Centrifugal air pump - Google Patents
Centrifugal air pump Download PDFInfo
- Publication number
- CN106050690B CN106050690B CN201610629698.2A CN201610629698A CN106050690B CN 106050690 B CN106050690 B CN 106050690B CN 201610629698 A CN201610629698 A CN 201610629698A CN 106050690 B CN106050690 B CN 106050690B
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- CN
- China
- Prior art keywords
- bearing
- housing
- cover
- groove
- main shaft
- 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.)
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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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- 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
- F04D29/06—Lubrication
- F04D29/063—Lubrication specially adapted for elastic fluid pumps
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of centrifugal air pumps, it is related to air pump technical field, the air pump is included in main shaft and driving section, back cabinet forms closed working cavity with front housing, impeller sets are set in working cavity, bearing is equipped on main shaft between front housing, bearing block, bearing is equipped with bearing holder (housing, cover), the outer circumference surface of the bearing holder (housing, cover) is equipped with the groove being arranged along major axes orientation, the front housing is equipped with the positioning pin that can be laterally moved relative to groove in groove, recess width is identical as the diameter of positioning pin, since the stiction between bearing and bearing holder (housing, cover) is larger, bearing holder (housing, cover) can be moved together with bearing, the length of the groove of bearing holder (housing, cover) ensure that bearing holder (housing, cover) can be moved along bearing direction with width design, the rotation of bearing holder (housing, cover) is prevented again, bearing holder (housing, cover) can be very good protection bearing.
Description
Technical field
The present invention relates to air pump technical fields, and in particular to a kind of centrifugal air pump.
Background technology
Air pump is a kind of to increase the pressure of gas and be allowed to the device of transport flow, with a variety of different operations
Mechanism Design.Centrifugal air pump is one such.Centrifugal air pump needs to revolve by the blade in Engine Driven Pump
Turn.When the speed demand of engine is higher and higher, the electric energy converted needed for the drive component in pump is more, therefore driving group
The operating temperature of part is also higher.The especially main shaft of impeller rotation, during high speed rotation, temperature is higher, main shaft
It is generally made of metal material, easily expansion, main shaft are typically provided bearing after being heated, and bearing can be with the main axle moving of expansion, axis
It holds and is easily squeezed in the process of moving with bearing block, damaged.
Invention content
Bearing at front housing can be protected the technical problem to be solved in the present invention is to provide a kind of, extends equipment
The centrifugal air pump of service life.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of centrifugal air pump, is included in master
The driving section of axis one end setting is equipped with the back cabinet and front housing being rotatablely connected with it, back cabinet and front housing shape on main shaft
At closed working cavity, impeller sets are set in working cavity, gas outlet is equipped on back cabinet, air inlet is equipped on front housing
Mouthful, bearing is equipped on main shaft between front housing, Bearing outer is equipped with the bearing block being fixedly connected on front housing, the bearing
It is equipped with bearing holder (housing, cover), for bearing holder (housing, cover) between bearing and bearing block, the outer circumference surface of the bearing holder (housing, cover) is equipped with parallel main axis side
To the groove of setting, the front housing is equipped with the positioning perpendicular to main shaft that can be laterally moved relative to groove in groove
Pin, recess width is identical as the diameter of positioning pin, and the length of groove is 1.5~2 times of positioning pin diameter, the bearing and bearing
Maximum static friction force between set is more than the maximum static friction force between bearing holder (housing, cover) and bearing block.
As a kind of preferred embodiment of bearing holder (housing, cover), the cross section both ends of the groove are semicircle, and middle section is rectangle.
Mode as an improvement of the present invention, the front housing are equipped with for the channel to bearing oiling, and oiling is logical
The oil inlet passage and oil discharge passage in road are respectively positioned on above bearing.
Further, it is equipped with radiator fan close to the main shaft of driving section.
From said program it can be seen that the present invention has the following advantages：Due to the stiction between bearing and bearing holder (housing, cover) compared with
Greatly, bearing holder (housing, cover) can be moved together with bearing, and length and the width design of the groove of bearing holder (housing, cover) ensure that bearing holder (housing, cover) can be along axis
Direction movement is held, and prevents the rotation of bearing holder (housing, cover), bearing holder (housing, cover) can be very good protection bearing, and the oiling channel of U-typed is arranged
The lubricating oil of addition can be made fully to be contacted with bearing 5, improve lubricant effect, extend the service life of bearing, and save lubrication
Oil.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the vertical view of the centre bearer bush of the present invention；
As shown in the figure：1, main shaft；2, back cabinet；3, front housing；4, impeller sets；5, bearing；6, bearing block；7, bearing holder (housing, cover)；
8, positioning pin；9, groove；10, radiator fan；11, oiling channel；12, oil discharge passage；13, seal receptacle；14, gasket.
Specific implementation mode
It elaborates to the specific implementation mode of the present invention below in conjunction with attached drawing.
As shown, the centrifugal air pump of the present invention is included in the driving section of 1 one end of main shaft setting, driving section is for driving
The rotation of main shaft is equipped with radiator fan 10 on the main shaft 1 close to driving section, is additionally provided on main shaft 1 and to be rotatablely connected with it
Back cabinet 2 and front housing 3, back cabinet 2 form closed working cavity with front housing 3, and escape pipe is equipped on back cabinet 2,
Front housing 3 is equipped with air inlet, and impeller sets 4 are arranged in the working cavity, and impeller sets 4 are made of several groups driving wheel and quiet wheel,
Driving wheel is fixed on main shaft 1, and quiet wheel is fixed in working cavity, and quiet wheel cooperates with driving wheel, and main shaft 1 is close to front housing
Bearing 5 is provided on 3 end, 5 outside of bearing is equipped with the bearing block 6 being fixedly connected on front housing 3, is also set on front housing 3
It is useful for the channel of 5 oiling of bearing, the oil inlet passage 11 and oil discharge passage 12 in oiling channel are respectively positioned on 5 top of bearing, setting
The oiling channel of U-typed can be such that the lubricating oil of addition is fully contacted with bearing 5, improve lubricant effect, extend the use of bearing
Service life, and save lubricating oil.6 end of bearing block is equipped with bearing cap, and liner, main shaft peripheral hardware are equipped between bearing block 6 and bearing cap
There is bushing, stud is equipped between back cabinet and front housing, and be equipped with and determine between back cabinet and front housing outside driving wheel, quiet wheel
Position ring.
Back cabinet inner wall is equipped with circular seal receptacle 13, main shaft be equipped with the matched gasket 14 of seal receptacle,
Edge of a knife labyrinth seal structure is equipped between back cabinet 2 and main shaft 1 can reduce the leakage of gas in cavity.
Bearing 5 is equipped with bearing holder (housing, cover) 7, and between bearing 5 and bearing block 6,7 outside of bearing holder (housing, cover) is equipped with prolongs bearing holder (housing, cover) 7
The groove 9 of major axes orientation setting, parallel with main shaft 1, groove 9 can be arranged on the bottom of bearing holder (housing, cover) 7, front housing 3 and groove 9
Corresponding position is set there are one positioning pin 8,8 vertical major of positioning pin, and positioning pin 8 is inserted into groove, and positioning pin 8 can be in groove 9
It laterally moves relative to groove 9,9 width of groove is identical as the diameter of positioning pin, and the length of groove 9 is positioning pin diameter
Between 1.5 to 2 times, the cross section of groove 9 can be rectangle, can also both ends it is semicircle, centre is rectangle, semi-circular portion
Diameter it is identical as positioning pin, the positioning pin 8 and groove 9 of the structure can both ensure that bearing holder (housing, cover) 7 can prolong main shaft and slide together,
The rotation of bearing holder (housing, cover) 7 is prevented again, is closely arranged between bearing 5 and bearing holder (housing, cover) 7, it is smooth between bearing holder (housing, cover) 7 and bearing block 6 to set
It sets, the maximum static friction force between bearing 5 and bearing holder (housing, cover) 7 is more than the maximum static friction force between bearing holder (housing, cover) 7 and bearing block 6.
When main shaft high speed rotation, main shaft expanded by heating, main shaft is fixed close to back cabinet part, swollen close to front housing part
Swollen elongation, since the stiction between bearing and bearing holder (housing, cover) is larger, bearing holder (housing, cover) can be moved together with bearing, the groove of bearing holder (housing, cover)
Length ensure that bearing holder (housing, cover) can be moved along bearing direction with width design, and prevent the rotation of bearing holder (housing, cover), bearing holder (housing, cover)
Protection bearing is can be very good, is in direct contact between bearing and bearing block and easily squeezes, bearing is fragile, and setting bearing holder (housing, cover) can
To squeeze between preventing between bearing and bearing block.
Claims (3)
1. a kind of centrifugal air pump is included in the driving section of main shaft (1) one end setting, it is equipped with and its company of rotation on main shaft (1)
The back cabinet (2) connect and front housing (3), back cabinet (2) form closed working cavity with front housing (3), are set in working cavity
Impeller sets (4) are set, gas outlet is equipped on back cabinet (2), air inlet is equipped on front housing (3), on main shaft (1) and front housing
(3) it is equipped with bearing (5) between, the bearing block (6) being fixedly connected on front housing is equipped with outside bearing (5), it is characterised in that：Institute
It states bearing (5) and is equipped with bearing holder (housing, cover) (7), bearing holder (housing, cover) (7) is located between bearing (5) and bearing block (6), the bearing holder (housing, cover) (7)
Outer circumference surface is equipped with the groove (9) of parallel main axis (1) direction setting, and the front housing (3) is equipped with can be in groove (9) interior phase
For the positioning pin (8) perpendicular to main shaft that groove (9) laterally moves, the diameter phase of groove (9) width and positioning pin (8)
Together, the length of groove is 1.5~2 times of positioning pin diameter, the maximum static friction force between the bearing (5) and bearing holder (housing, cover) (7)
More than the maximum static friction force between bearing holder (housing, cover) (7) and bearing block (6), the cross section both ends of the groove (9) are semicircle, in
Between be partly rectangle, the front housing is equipped with for the channel to bearing (5) oiling, the oil inlet passage (11) in oiling channel and
Oil discharge passage (12) is respectively positioned on above bearing.
2. centrifugal air pump according to claim 1, it is characterised in that：Main shaft (1) close to driving section is equipped with heat dissipation
Fan (10).
3. centrifugal air pump according to claim 1, it is characterised in that：The back cabinet inner wall is equipped with circular sealing
Seat (13), the main shaft are equipped with and the matched gasket of seal receptacle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629698.2A CN106050690B (en) | 2016-08-02 | 2016-08-02 | Centrifugal air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629698.2A CN106050690B (en) | 2016-08-02 | 2016-08-02 | Centrifugal air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106050690A CN106050690A (en) | 2016-10-26 |
| CN106050690B true CN106050690B (en) | 2018-09-25 |
Family
ID=57196293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629698.2A Active CN106050690B (en) | 2016-08-02 | 2016-08-02 | Centrifugal air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050690B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206556Y (en) * | 2008-05-30 | 2009-03-11 | 无锡中策机电设备有限公司 | Vacuum pressure air pump with built-in blade sealing arrangement |
| CN102562824A (en) * | 2010-12-16 | 2012-07-11 | 赵忠英 | Anti-creep bearing |
| CN202510568U (en) * | 2012-03-27 | 2012-10-31 | 钱潮轴承有限公司 | Bearing provided with positioning pin structure |
| CN203948485U (en) * | 2014-07-26 | 2014-11-19 | 慈溪市特种轴承有限公司 | Prevent the rolling bearing units of bearing outer ring rotation |
| CN105257705A (en) * | 2015-11-10 | 2016-01-20 | 河北书浩轴承有限公司 | Deep-groove ball bearing |
| CN205876742U (en) * | 2016-08-02 | 2017-01-11 | 美佳德科技（无锡）有限公司 | Centrifugal air pump |
-
2016
- 2016-08-02 CN CN201610629698.2A patent/CN106050690B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201206556Y (en) * | 2008-05-30 | 2009-03-11 | 无锡中策机电设备有限公司 | Vacuum pressure air pump with built-in blade sealing arrangement |
| CN102562824A (en) * | 2010-12-16 | 2012-07-11 | 赵忠英 | Anti-creep bearing |
| CN202510568U (en) * | 2012-03-27 | 2012-10-31 | 钱潮轴承有限公司 | Bearing provided with positioning pin structure |
| CN203948485U (en) * | 2014-07-26 | 2014-11-19 | 慈溪市特种轴承有限公司 | Prevent the rolling bearing units of bearing outer ring rotation |
| CN105257705A (en) * | 2015-11-10 | 2016-01-20 | 河北书浩轴承有限公司 | Deep-groove ball bearing |
| CN205876742U (en) * | 2016-08-02 | 2017-01-11 | 美佳德科技（无锡）有限公司 | Centrifugal air pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106050690A (en) | 2016-10-26 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190626 Address after: 214029 No. 59 Xinmei Road, New District, Wuxi City, Jiangsu Province Patentee after: Eabar Technology (Weihai) Co., Ltd. Address before: No. 88 East Spring Shoot Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province, 214000 Patentee before: U.S. good Deco skill (Wuxi) Co., Ltd |
|
| TR01 | Transfer of patent right |