CN209324664U - A kind of vacuum pump rotor - Google Patents
A kind of vacuum pump rotor Download PDFInfo
- Publication number
- CN209324664U CN209324664U CN201920009518.XU CN201920009518U CN209324664U CN 209324664 U CN209324664 U CN 209324664U CN 201920009518 U CN201920009518 U CN 201920009518U CN 209324664 U CN209324664 U CN 209324664U
- Authority
- CN
- China
- Prior art keywords
- side wall
- driver slot
- vacuum pump
- slide plate
- pump rotor
- 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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- Rotary Pumps (AREA)
Abstract
The utility model discloses a kind of 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 driver slot runs through side wall, and driver slot two sides side wall is fixedly connected with ceramic sliding.The utility model has the effect of mitigating rotor abrasion.
Description
Technical field
The utility model relates to vacuum pump accessory technical fields, more specifically, it relates to a kind of 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 vacuum pump rotor of effect for mitigating rotor abrasion.
The utility model to achieve the goals above, provides following technical solution: a kind of vacuum pump rotor, including connection
Axis, the connecting shaft have been fixedly and coaxially connected cylinder, and the cylinder lateral wall radially offers driver slot, and the driver slot will
Side wall runs through, and driver slot two sides side wall is fixedly connected with ceramic sliding.
It prevents from driving using the side wall of the wearability protection driver slot two sides of ceramic sliding by using above-mentioned technical proposal
The abrasion of dynamic groove sidewall, because ceramics have higher hardness and stronger wearability, ceramic sliding is not easy to wear, effectively keeps away
The expansion for having exempted from gap between ceramic sliding and blade effectively increases the working efficiency of vacuum pump.
The utility model is further arranged to: the ceramic sliding includes multiple slide plate plates disposed in parallel, two phases
Equipped with there are oil storage gaps between the adjacent slide plate plate.
When ceramic sliding length is longer, when rotor drives blade rotation, ceramic sliding will be easy by stronger stress
Cause ceramic sliding to fracture, by using above-mentioned technical proposal, forms ceramic sliding using slide plate plate, shorten single slide plate
The length of plate reduces the stress that slide plate plate is subject to.
The utility model is further arranged to: the slide plate plate is parallelogram, and the slide plate plate is close to cylinder
The two sides side wall of axial end face is parallel with cylinder axial end face, and the oil storage gap is inclined to set.
By using above-mentioned technical proposal, reduce because the oil storage gap generation between two slide plate plates is along driver slot
The frictional force of length direction.
The utility model is further arranged to: the oil storage gap inclined direction of the driving slot width direction side wall is opposite.
By using above-mentioned technical proposal, inclined oil storage gap can generate the frictional component perpendicular to driver slot, thus
When driver slot oil storage gap inclined direction is opposite, blade is by frictional component opposite and perpendicular to driver slot, in turn
The frictional component perpendicular to driver slot that balance blade is subject to.
The utility model is further arranged to: the oil storage gap inclined direction at the both ends in driver slot side wall length direction
On the contrary.
By using above-mentioned technical proposal, inclined oil storage gap can generate the frictional component perpendicular to driver slot, thus
When driver slot oil storage gap inclined direction is opposite, blade is by frictional component opposite and perpendicular to driver slot, in turn
The frictional component perpendicular to driver slot that balance blade is subject to.
The utility model is further arranged to: the middle position in driver slot side wall length direction is equipped with the pottery of triangle
Porcelain attaching plate elements.
By using above-mentioned technical proposal, doubted using ceramic joining plate supplement two sideskid plate of driver slot because to phase
The vacancy of opposite direction inclination and generation.
The utility model is further arranged to: side wall of the slide plate plate close to oil storage gap is equipped with circular arc chamfering.
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 slide plate plate is in deviate from driver slot side close to the end face of driving groove sidewall
To the cambered surface to arch upward.
By using above-mentioned technical proposal, increases slide plate plate and drive the contact area between groove sidewall, to reduce
Pressure between slide plate plate and driving groove sidewall is strong, reduces a possibility that slide plate plate is by pressure break.
In conclusion the utility model has the following beneficial effects:
First, the side wall of the wearability protection driver slot two sides using ceramic sliding, prevents the abrasion of driving groove sidewall, because
There is higher hardness and stronger wearability for ceramics, so ceramic sliding is not easy to wear, effectively prevent ceramic sliding and rotation
The expansion in gap between piece, effectively increases the working efficiency of vacuum pump；
Second, forming ceramic sliding using slide plate plate, shorten the length of single slide plate plate, reduce slide plate plate by
The stress arrived；
Third, driving slot width direction side wall oil storage gap inclined direction on the contrary, driver slot side wall length direction two
The oil storage gap inclined direction at end is on the contrary, blade by frictional component opposite and perpendicular to driver slot, and then balances rotation
The frictional component perpendicular to driver slot that piece is subject to.
Detailed description of the invention
Fig. 1 is the perspective view of the present embodiment；
Fig. 2 is the structural schematic diagram that the present embodiment is used to show driver slot；
Fig. 3 is the portion the A enlarged drawing of Fig. 2；
Fig. 4 is the explosive view that the present embodiment is used to show slide plate plate.
Appended drawing reference: 1, connecting shaft；2, cylinder；3, link slot；4, driver slot；5, ceramic sliding；6, slide plate plate；7, it stores up
Oil-gap；8, ceramic joining plate.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of vacuum pump rotor, as shown in Figure 1, including connecting shaft 1 and cylinder 2, connecting shaft 1 is fixedly and coaxially connected in cylinder
2 one end, connecting shaft 1 offer link slot 3 far from one end of cylinder 2.One end side wall of the cylinder 2 far from connecting shaft 1 is radially
Driver slot 4 is offered, driver slot 4 runs through side wall.
As shown in Fig. 2, 4 two sides side wall of driver slot is fixedly connected to ceramic sliding 5, the wearability of ceramic sliding 5 is utilized
The side wall for protecting 4 two sides of driver slot, prevents the abrasion of 4 side wall of driver slot, because ceramic with higher hardness and stronger wear-resisting
Property, so ceramic sliding 5 is not easy to wear, the expansion in gap between ceramic sliding 5 and blade is effectively prevented, is effectively increased true
The working efficiency of sky pump.When 5 length of ceramic sliding is longer, when rotor drives blade rotation, ceramic sliding 5 will be by stronger
Stress is easy to cause ceramic sliding 5 to fracture, thus in order to avoid ceramic sliding 5 fracture generation powder and clast influence blade
Sliding.Ceramic sliding 5 includes multiple slide plate plates 6 disposed in parallel made of silicon nitride ceramics.
As shown in Figures 2 and 3, it is equipped between two adjacent slide plate plates 6 there are oil storage gap 7, oil storage gap 7 is interior to store up
There is lubricating oil.Form ceramic sliding 5 with slide plate plate 6, shorten the length of single slide plate plate 6, reduce slide plate plate 6 by
Stress.Slide plate plate 6 is in the cambered surface to arch upward away from 4 direction of driver slot close to the end face of 4 side wall of driver slot, increases slide plate plate
Contact area between 6 and 4 side wall of driver slot reduces so that the pressure reduced between 4 side wall of slide plate plate 6 and driver slot is strong
A possibility that slide plate plate 6 is by pressure break.
As shown in figure 4, slide plate plate 6 is parallelogram, two sides side wall of the slide plate plate 6 close to 2 axial end face of cylinder
Parallel with 2 axial end face of cylinder, 6 side wall of slide plate plate is inclined to set, so that oil storage gap 7 is inclined to set.Because of inclination
Oil storage gap 7 can generate inclined oil storage gap 7 and can generate frictional component perpendicular to driver slot 4, to balance this friction
Component makes 7 inclined direction of oil storage gap of 4 width direction side wall of driver slot on the contrary, the both ends in 4 side wall length direction of driver slot
7 inclined direction of oil storage gap is opposite.The middle position in 4 side wall length direction of driver slot is equipped with the ceramic joining plate 8 of triangle.
For be further reduced because oil storage gap 7 presence and to blade generate frictional force, slide plate plate 6 is close to oil storage gap 7
Side wall is 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 sliding 5, prevent
The abrasion of 4 side wall of driver slot, effectively prevents the expansion in gap between ceramic sliding 5 and blade, effectively increases vacuum pump
Working efficiency.
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 vacuum pump rotor, which is characterized in that including connecting shaft (1), the connecting shaft (1) has been fixedly and coaxially connected cylinder
(2), cylinder (2) side wall radially offers driver slot (4), and the driver slot (4) runs through side wall, the driver slot
(4) two sides side wall is fixedly connected with ceramic sliding (5).
2. a kind of vacuum pump rotor according to claim 1, it is characterised in that: the ceramic sliding (5) includes multiple flat
The slide plate plate (6) of row setting, is equipped with that there are oil storage gap (7) between two adjacent slide plate plates (6).
3. a kind of vacuum pump rotor according to claim 2, it is characterised in that: the slide plate plate (6) is parallel four side
Shape, the slide plate plate (6) is parallel with cylinder (2) axial end face close to the two sides side wall of cylinder (2) axial end face, the oil storage
Gap (7) is inclined to set.
4. a kind of vacuum pump rotor according to claim 3, it is characterised in that: driver slot (4) the width direction side wall
Oil storage gap (7) inclined direction it is opposite.
5. a kind of vacuum pump rotor according to claim 4, it is characterised in that: driver slot (4) the side wall length direction
Both ends oil storage gap (7) inclined direction it is opposite.
6. a kind of vacuum pump rotor according to claim 5, it is characterised in that: driver slot (4) the side wall length direction
Middle position be equipped with triangle ceramic joining plate (8).
7. a kind of vacuum pump rotor according to claim 6, it is characterised in that: the slide plate plate (6) is between oil storage
The side wall of gap (7) is equipped with circular arc chamfering.
8. a kind of vacuum pump rotor according to claim 7, it is characterised in that: the slide plate plate (6) is close to driver slot
(4) end face of side wall is in the cambered surface to arch upward away from driver slot (4) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009518.XU CN209324664U (en) | 2019-01-03 | 2019-01-03 | A kind of vacuum pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920009518.XU CN209324664U (en) | 2019-01-03 | 2019-01-03 | A kind of vacuum pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324664U true CN209324664U (en) | 2019-08-30 |
Family
ID=67730549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920009518.XU Expired - Fee Related CN209324664U (en) | 2019-01-03 | 2019-01-03 | A kind of vacuum pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324664U (en) |
-
2019
- 2019-01-03 CN CN201920009518.XU patent/CN209324664U/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 |