CN209324663U - A kind of wear-resisting vacuum pump rotor - Google Patents
A kind of wear-resisting vacuum pump rotor Download PDFInfo
- Publication number
- CN209324663U CN209324663U CN201920009024.1U CN201920009024U CN209324663U CN 209324663 U CN209324663 U CN 209324663U CN 201920009024 U CN201920009024 U CN 201920009024U CN 209324663 U CN209324663 U CN 209324663U
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- China
- Prior art keywords
- side wall
- slot
- ceramic wafer
- vacuum pump
- wear
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Abstract
The utility model discloses a kind of wear-resisting vacuum pump rotors, belong to vacuum pump accessories field, its key points of the technical solution are that including connecting shaft, the connecting shaft has been fixedly and coaxially connected cylinder, the cylinder lateral wall radially offers driver slot, the body end surface coaxially offers circular cavity, and the ceramic wafer of half arc is equipped in the cavity, and the ceramic wafer side wall is parallel with the side wall of driver slot.The utility model has the widened effect for avoiding gap between ceramic wafer and blade.
Description
Technical field
The utility model relates to vacuum pump accessory technical fields, more specifically, it relates to a kind of wear-resisting vacuum pump rotor.
Background technique
Vacuum pump, which refers to, to be obtained using machinery, physics, chemically or physically chemical method to being evacuated by pumping container
The device or equipment of vacuum.For popular, vacuum pump is to improve, generate and maintain true in a certain enclosure space with various methods
Empty device.Rotor is the connection that vacuum pump is used to transmit torque.
Currently, the Chinese utility model patent that notification number is CN205895605U discloses, a kind of rotor, including rotor sheet
Body offers drain pan along its circumferencial direction on the top end face of rotor body, and guidance lubricating oil is in discharge vacuum pump housing cavity
While body, a part of lubricating oil is repelled back inside cavity by drain pan, reduces the severe impact of oil extraction process, thus
Reduce noise.
Prior art among the above have the following deficiencies: rotor rotation when, blade relative to rotor reciprocating friction from
And the position abrasion for causing rotor to contact with blade, and then gap between the two is caused to be exaggerated, gas leakage is finally resulted in, vacuum pump
Working efficiency reduce.
Utility model content
The utility model aim is to provide a kind of widened wear-resisting vacuum pump for avoiding gap between ceramic wafer and blade
Rotor.
The utility model to achieve the goals above, provides following technical solution: a kind of wear-resisting vacuum pump rotor, including
Connecting shaft, the connecting shaft have been fixedly and coaxially connected cylinder, and the cylinder lateral wall radially offers driver slot, the cylinder
End face coaxially offers circular cavity, and the ceramic wafer of half arc, the ceramic wafer side wall and driver slot are equipped in the cavity
Side wall it is parallel.
Driving is reduced using the side wall of the wearability protection driver slot two sides of ceramic wafer by using above-mentioned technical proposal
The abrasion of groove sidewall, because ceramics have higher hardness and stronger wearability, ceramic wafer is not easy to wear, effectively prevents
The expansion in gap between ceramic wafer and blade, effectively increases the working efficiency of vacuum pump.
The utility model is further arranged to: it is vertical that the ceramic wafer is offered along the both ends of driver slot length direction
Oil storage tank, the oil storage tank is interior to be equipped with lubricating oil.
By using above-mentioned technical proposal, the frictional force between ceramic wafer and blade is reduced using lubricating oil.
The utility model is further arranged to: the ceramic wafer offers the several first logical oil close to the side wall of driver slot
Slot, the first logical oil groove are arranged along driver slot length direction, and described first logical oil groove one end is connected to oil storage tank, and described the
The other end of one logical oil groove offers the horn mouth communicated therewith, and the bell-mouthed bottom surface and ceramic wafer are close to the side of driver slot
Wall is tangent.
By using above-mentioned technical proposal, lubricating oil is guided using the first logical oil groove, flow to more lubricating oil in pottery
Between porcelain plate and blade.
The utility model is further arranged to: the ceramic wafer offers the several second logical oil far from the side wall of driver slot
Slot, the second logical oil groove is arranged along driver slot length direction, and its both ends is connected to oil storage tank respectively.
By using above-mentioned technical proposal, the circulation of lubricating oil is realized using the first logical oil groove and the second logical oil groove, is kept away
Exempt from one end that lubricating oil concentrates on the length direction of driver slot.
The utility model is further arranged to: the ceramic wafer is equipped with circular arc chamfering close to the side wall of oil storage tank.
By using above-mentioned technical proposal, the frictional force generated because of the presence in oil storage gap to blade is reduced.
The utility model is further arranged to: the cavity sidewalls are connect with driving groove sidewall by the way that circular arc chamfering is arranged.
By using above-mentioned technical proposal, the frictional force generated because of the presence in oil storage gap to blade is reduced.
The utility model is further arranged to: the cavity sidewalls are offered the perforative slot of cylinder axial end face, institute
It states ceramic wafer and is formed with the inserted block being adapted to slot.
It by using above-mentioned technical proposal, is adapted to using inserted block and slot, to make cylinder and ceramic board connecting structure more
Add stabilization.
The utility model is further arranged to: there are four the slots and is circumferentially opened in cavity sidewalls.
By using above-mentioned technical proposal, the stability of cylinder and ceramic board connecting structure is further increased.
In conclusion the utility model has the following beneficial effects:
First, the side wall of the wearability protection driver slot two sides using ceramic wafer, reduces the abrasion of driving groove sidewall, because
There is ceramics higher hardness and stronger wearability to effectively prevent between ceramic wafer and blade so ceramic wafer is not easy to wear
The expansion in gap effectively increases the working efficiency of vacuum pump；
Second, the several first logical oil grooves are offered close to the side wall of driver slot in ceramic wafer, to guide the flowing of lubricating oil,
It flow to more lubricating oil between ceramic wafer and blade, the circulation of lubricating oil is realized using the second logical oil groove, avoids moistening
Lubricating oil concentrates on one end of the length direction of driver slot；
Third, cavity sidewalls are circumferentially opened up there are four slot, ceramic wafer is formed with the inserted block being adapted to slot, utilizes
Inserted block and slot adaptation, to keep cylinder and ceramic board connecting structure more stable.
Detailed description of the invention
Fig. 1 is the integrally-built perspective view of the present embodiment；
Fig. 2 is the explosive view that the present embodiment is used to show ceramic wafer.
Appended drawing reference: 1, connecting shaft；2, cylinder；3, link slot；4, driver slot；5, cavity；6, ceramic wafer；7, slot；8,
Inserted block；9, oil storage tank；10, the first logical oil groove；11, horn mouth；12, the second logical oil groove.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of wear-resisting vacuum pump rotor, as depicted in figs. 1 and 2, including connecting shaft 1 and cylinder 2, connecting shaft 1 are coaxially fixed
It is connected to 2 one end of cylinder, connecting shaft 1 offers link slot 3 far from one end of cylinder 2.One end of the cylinder 2 far from connecting shaft 1
Wall radially offers driver slot 4, and driver slot 4 runs through side wall.2 end face of cylinder coaxially offers circular cavity 5, cavity
5 bottom surfaces are concordant with 4 bottom surface of driver slot.
As shown in Fig. 2, set the ceramic wafer 6 there are two half arc in cavity 5,5 side wall of cavity circumferentially opens up that there are four slots
7, slot 7 is in convex shape relative to 2 radial section of cylinder, and slot 7 runs through cylinder 2 far from the end face of 1 one end of connecting shaft.Ceramics
Plate 6 is formed with the inserted block 8 being adapted to slot 7, and inserted block 8 is plugged in slot 7, to make cylinder 2 and the fixed company of ceramic wafer 6
It connects.6 side wall of ceramic wafer is parallel with the side wall of driver slot 4.When blade slides in driver slot 4, the side wall of blade and ceramic wafer 6
Friction is mutually generated, because ceramics have higher hardness and stronger wearability, ceramic wafer 6 is not easy to wear, effectively avoids
The expansion in gap between ceramic wafer 6 and blade, effectively increases the working efficiency of vacuum pump.
As shown in Fig. 2, ceramic wafer 6 offers vertical oil storage tank 9, oil storage tank 9 along the both ends of 4 length direction of driver slot
Interior to be equipped with lubricating oil, ceramic wafer 6 is opened up close to the side wall of driver slot 4 there are six the first logical oil groove 10, the first logical oil groove 10 along
The setting of 4 length direction of driver slot.Three first logical 10 one end of oil groove therein are connected to the oil storage tank 9 in left side, the other three
One logical 10 one end of oil groove is connected to the oil storage tank 9 on right side.The first logical oil groove 10 for being connected to the oil storage tank 9 in left side and with right side
The first logical oil groove 10 that oil storage tank 9 is connected to is in be staggered.First logical oil groove 10 connects far from one end of the oil storage tank 9 communicated therewith
It is connected with horn mouth 11, the bottom surface of horn mouth 11 and ceramic wafer 6 are tangent close to the side wall of driver slot 4.Drawn using the first logical oil groove 10
Lubricating oil is led, flow to more lubricating oil between ceramic wafer 6 and blade.Ceramic wafer 6 is offered far from the side wall of driver slot 4
Multiple second logical oil grooves 12, the second logical oil groove 12 along 4 length direction of driver slot be arranged, and its both ends respectively with oil storage tank 9
Connection.The circulation that lubricating oil is realized using the first logical oil groove 10 and the second logical oil groove 12, avoids lubricating oil from concentrating on driver slot 4
Length direction one end.
In order to reduce because oil storage gap presence and to the frictional force that blade generates, 5 side wall of cavity and 4 side wall of driver slot
Between and ceramic wafer 6 close to oil storage tank 9 side wall be equipped with circular arc chamfering.
The implementation principle of the present embodiment are as follows: using the side wall of wearability protection 4 two sides of driver slot of ceramic wafer 6, reduce and drive
The abrasion of dynamic 4 side wall of slot, because ceramics have higher hardness and stronger wearability, ceramic wafer 6 is not easy to wear, effectively keeps away
The expansion for having exempted from gap between ceramic wafer 6 and blade effectively increases the working efficiency of vacuum pump.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of wear-resisting vacuum pump rotor, including connecting shaft (1), the connecting shaft (1) has been fixedly and coaxially connected cylinder (2), institute
Cylinder (2) side wall to be stated radially to offer driver slot (4), cylinder (2) end face coaxially offers circular cavity (5),
The ceramic wafer (6) of half arc is equipped in the cavity (5), ceramic wafer (6) side wall is parallel with the side wall of driver slot (4).
2. a kind of wear-resisting vacuum pump rotor according to claim 1, it is characterised in that: the ceramic wafer (6) is along driving
The both ends of slot (4) length direction offer vertical oil storage tank (9), and lubricating oil is equipped in the oil storage tank (9).
3. a kind of wear-resisting vacuum pump rotor according to claim 2, it is characterised in that: the ceramic wafer (6) is close to driving
The side wall of slot (4) offers the several first logical oil grooves (10), and the first logical oil groove (10) sets along driver slot (4) length direction
It sets, described first logical oil groove (10) one end is connected to oil storage tank (9), and the other end of the first logical oil groove (10) offers and it
The horn mouth (11) of connection, side wall of the bottom surface of the horn mouth (11) with ceramic wafer (6) close to driver slot (4) are tangent.
4. a kind of wear-resisting vacuum pump rotor according to claim 3, it is characterised in that: the ceramic wafer (6) is far from driving
The side wall of slot (4) offers the several second logical oil grooves (12), and the second logical oil groove (12) sets along driver slot (4) length direction
It sets, and its both ends is connected to oil storage tank (9) respectively.
5. a kind of wear-resisting vacuum pump rotor according to claim 4, it is characterised in that: the ceramic wafer (6) is close to oil storage
The side wall of slot (9) is equipped with circular arc chamfering.
6. a kind of wear-resisting vacuum pump rotor according to claim 5, it is characterised in that: cavity (5) side wall and driving
Slot (4) side wall is connected by setting circular arc chamfering.
7. a kind of wear-resisting vacuum pump rotor according to claim 6, it is characterised in that: cavity (5) side wall offers
By the perforative slot of cylinder (2) axial end face (7), the ceramic wafer (6) is formed with the inserted block (8) being adapted to slot (7).
8. a kind of wear-resisting vacuum pump rotor according to claim 7, it is characterised in that: the slot (7) there are four and
Circumferentially it is opened in cavity (5) side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009024.1U CN209324663U (en) | 2019-01-03 | 2019-01-03 | A kind of wear-resisting vacuum pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009024.1U CN209324663U (en) | 2019-01-03 | 2019-01-03 | A kind of wear-resisting vacuum pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324663U true CN209324663U (en) | 2019-08-30 |
Family
ID=67730517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009024.1U Expired - Fee Related CN209324663U (en) | 2019-01-03 | 2019-01-03 | A kind of wear-resisting vacuum pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324663U (en) |
-
2019
- 2019-01-03 CN CN201920009024.1U patent/CN209324663U/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: 20190830 Termination date: 20220103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |