CN207661006U - Medical water-ring vacuum pump bearing block - Google Patents
Medical water-ring vacuum pump bearing block Download PDFInfo
- Publication number
- CN207661006U CN207661006U CN201721677442.5U CN201721677442U CN207661006U CN 207661006 U CN207661006 U CN 207661006U CN 201721677442 U CN201721677442 U CN 201721677442U CN 207661006 U CN207661006 U CN 207661006U
- Authority
- CN
- China
- Prior art keywords
- ring
- end cap
- right end
- pump shaft
- bearing
- 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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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a kind of medical water-ring vacuum pump bearing blocks,Including pedestal,Pedestal is equipped with bearing hole,Two ends of the bearing hole is respectively equipped with the left end cap and right end cap being connected with pedestal,The single row roller bearing for rotational support pump shaft is equipped in bearing hole,The right end cap is equipped with stepped hole,The fixed ring of double-direction thrust ball bearing and empty set on pump shaft being sleeved on pump shaft is equipped in stepped hole,Fixed ring is connected with right end cap,Double-direction thrust ball bearing includes inner ring and a pair of of outer ring,Inner ring is fixed on pump shaft,The lateral surface of outer ring is equipped with the taper surface of evagination,Lantern ring of the empty set on pump shaft is equipped on the outside of outer ring,Lantern ring inner face is equipped with the taper surface of indent,On the step of the right end cap stepped hole and it is respectively equipped with several axial blind holes being evenly distributed on fixed ring end face,It is equipped in axial blind hole and forces the combined pretensioned spring of taper surface that lantern ring passes through the two with corresponding inner ring.
Description
Technical field
The utility model is related to medical vacuum pump technical field, especially a kind of medical water-ring vacuum pump bearing block.
Background technology
Medical oxygen supply system is a whole set of device that medical gas or medical vacuum are provided to patient or Medical Devices, medical
A vacuum part is provided by water-ring vacuum pump.A kind of water-ring vacuum pump includes the pump housing, pump shaft and the leaf being arranged in the pump housing
Wheel, impeller are fixed on pump shaft, and pump housing both ends are respectively equipped with bearing block, and bearing block includes the pedestal being linked together with the pump housing, seat
The deep groove ball bearing for rotational support pump shaft, after vacuum pump works long hours, the parts of vacuum pump are equipped in body bearing hole
It gradually wears out, the axial force that pump shaft is subject to is more and more big, leads to deep groove ball bearing service life reduction.
Utility model content
The technical problems to be solved in the utility model is：Overcome the deficiencies in the existing technology, provide a kind of bearing life compared with
Long medical water-ring vacuum pump bearing block.
Technical solution adopted by the utility model to solve its technical problems is：A kind of medical water-ring vacuum pump bearing
Seat, including pedestal, pedestal are equipped with bearing hole, and two ends of the bearing hole is respectively equipped with the left end cap and right end cap being connected with pedestal, axis
It is equipped with the single row roller bearing for rotational support pump shaft in bearing bore, the right end cap is equipped with stepped hole, in stepped hole
Fixed ring equipped with the double-direction thrust ball bearing and empty set being sleeved on pump shaft on pump shaft, fixed ring is connected with right end cap, double
Include inner ring and a pair of of outer ring to thrust ball bearing, inner ring is fixed on pump shaft, and the lateral surface of outer ring is equipped with the taper surface of evagination,
Lantern ring of the empty set on pump shaft is equipped on the outside of outer ring, lantern ring inner face is equipped with the taper surface of indent, the right end cap stepped hole
Be respectively equipped with several axial blind holes being evenly distributed on step and fixed ring end face, be equipped in axial blind hole force lantern ring with
The combined pretensioned spring of taper surface that corresponding inner ring passes through the two.
The right end cap is connected by intermediate sleeve and pedestal.
The right end cap stepped hole right end exit is fixed with sealing cover；It is fixed on pump shaft at the left end cap shaft outlet hole
It is set with axle sleeve, sealing ring is equipped between axle sleeve and shaft outlet hole, fixing sleeve is gone back on axle sleeve, the gear being arranged on the outside of sealing ring is housed
Dirt ring.
The utility model has the beneficial effects that：The utility model uses single row roller bearing and double-direction thrust ball bearing
The mode being combined, to realize the purpose for extending bearing life, is reduced and is shut down to carry the radial load and axial force that pump shaft is subject to
The time of maintenance improves the time between failures of vacuum pump；Pretensioned spring can then buffer double-direction thrust ball bearing by
Impact force, and can eliminate and due to the decentraction of pump shaft and right end cap stepped hole double-direction thrust ball bearing be worked normally
Harmful effect.
Description of the drawings
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model.
In figure：1. pedestal；2. left end cap；3. right end cap；4. pump shaft；5. single row roller bearing；6. fixed ring；7. riding
Stitch screw；8. inner ring；9. outer ring；10. lantern ring；11. pretensioned spring；12. intermediate sleeve；13. sealing cover；14. axle sleeve；15. close
Seal ring；16. dust retaining ring；17. clamping sleeve；18. pressing plate；19. screw.
Specific implementation mode
The utility model is further described presently in connection with attached drawing.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the utility model, therefore it only shows composition related with the utility model.
A kind of medical water-ring vacuum pump bearing block (being located at pump shaft free end) as shown in Figure 1, including pedestal 1, pedestal 1
It is equipped with bearing hole, two ends of the bearing hole is respectively equipped with the left end cap 2 being connected with pedestal 1 and right end cap 3, is equipped with and is used in bearing hole
The single row roller bearing 5 of rotational support pump shaft 4, the right end cap 3 are equipped with stepped hole, are equipped in stepped hole and are sleeved on pump
The fixed ring 6 of double-direction thrust ball bearing and empty set on pump shaft 4 on axis 4, fixed ring 6 by least one junction of the edges of two sheets of paper screw 7 with
Right end cap 3 is connected, and double-direction thrust ball bearing includes inner ring 8 and a pair of of outer ring 9, and inner ring 8 is fixedly set on pump shaft 4, and outer ring 9 is empty
It being sleeved on pump shaft 4, the lateral surface of outer ring 9 is equipped with the taper surface of evagination, and 9 outside of outer ring is equipped with lantern ring 10 of the empty set on pump shaft 4,
10 inner face of lantern ring is equipped with the taper surface of indent, is respectively equipped with 6 inner face of fixed ring on the step of 3 stepped hole of the right end cap
Several axial blind holes being evenly distributed, interior be equipped with of axial blind hole force the taper that lantern ring 10 passes through the two with corresponding inner ring 8
The combined pretensioned spring 11 in face, 11 one end of pretensioned spring offset with axial blind hole bottom, and pretensioned spring 11 is another
One end stretches out axial blind hole and offsets with 10 outer end face of lantern ring；The parts thereof of vacuum pump, at work suddenly after damage, pump shaft
4 axial forces being subject to can increase suddenly, larger to the impact force of double-direction thrust ball bearing, and several pretensioned springs 11 of setting are then
Good cushioning effect can be played, to extend the service life of double-direction thrust ball bearing.
The right end cap 3 is connected by intermediate sleeve 12 and pedestal 1.
3 stepped hole right end exit of the right end cap is fixed with sealing cover 13；Pump shaft 4 at 2 shaft outlet hole of the left end cap
Upper fixing sleeve is equipped with axle sleeve 14, and sealing ring 15 is equipped between axle sleeve 14 and shaft outlet hole, and fixing sleeve is gone back on axle sleeve 14 and is existed equipped with setting
The dust retaining ring 16 in 15 outside of sealing ring.
For fixed double-direction thrust ball bearing inner ring 8,8 right side of double-direction thrust ball bearing inner ring is equipped with movable set in pump shaft 4
On clamping sleeve 17, the right side of clamping sleeve 17 is equipped with pressing plate 18 and screw 19, which passes sequentially through pressing plate 18 and clamping sleeve 17 will
Double-direction thrust ball bearing inner ring 8 is fixed on pump shaft 4.
The above embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with this skill
The personage of art can understand the content of the utility model and be implemented, and the protection model of the utility model can not be limited with this
It encloses, it is all according to equivalent change or modification made by the spirit of the present invention essence, it should all cover the protection model in the utility model
In enclosing.
Claims (3)
1. a kind of medical water-ring vacuum pump bearing block, including pedestal, pedestal is equipped with bearing hole, and two ends of the bearing hole is respectively equipped with
The left end cap and right end cap being connected with pedestal, it is characterized in that：The single-row circle for rotational support pump shaft is equipped in the bearing hole
Column roller bearing, the right end cap are equipped with stepped hole, be equipped in stepped hole the double-direction thrust ball bearing being sleeved on pump shaft and
Fixed ring of the empty set on pump shaft, fixed ring are connected with right end cap, and double-direction thrust ball bearing includes inner ring and a pair of of outer ring, inner ring
It is fixed on pump shaft, the lateral surface of outer ring is equipped with the taper surface of evagination, and lantern ring of the empty set on pump shaft, lantern ring are equipped on the outside of outer ring
Inner face is equipped with the taper surface of indent, is respectively equipped on the step of the right end cap stepped hole and fixed ring end face circumferentially
Several axial blind holes of cloth, interior be equipped with of axial blind hole force lantern ring to be combined together by the taper surface of the two with corresponding inner ring
Pretensioned spring.
2. medical water-ring vacuum pump bearing block according to claim 1, it is characterized in that：The right end cap passes through intermediate sleeve
It is connected with pedestal.
3. medical water-ring vacuum pump bearing block according to claim 1, it is characterized in that：The right end cap stepped hole right end
Exit is fixed with sealing cover；Fixing sleeve is equipped with axle sleeve on pump shaft at the left end cap shaft outlet hole, between axle sleeve and shaft outlet hole
Equipped with sealing ring, fixing sleeve is gone back on axle sleeve, the dust retaining ring being arranged on the outside of sealing ring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677442.5U CN207661006U (en) | 2017-12-05 | 2017-12-05 | Medical water-ring vacuum pump bearing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677442.5U CN207661006U (en) | 2017-12-05 | 2017-12-05 | Medical water-ring vacuum pump bearing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207661006U true CN207661006U (en) | 2018-07-27 |
Family
ID=62939635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677442.5U Expired - Fee Related CN207661006U (en) | 2017-12-05 | 2017-12-05 | Medical water-ring vacuum pump bearing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207661006U (en) |
-
2017
- 2017-12-05 CN CN201721677442.5U patent/CN207661006U/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: 20180727 Termination date: 20181205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |