CN208950861U - A kind of blade structure of small-sized oil-sealed sliding vane vacuum pump - Google Patents
A kind of blade structure of small-sized oil-sealed sliding vane vacuum pump Download PDFInfo
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- CN208950861U CN208950861U CN201821852219.4U CN201821852219U CN208950861U CN 208950861 U CN208950861 U CN 208950861U CN 201821852219 U CN201821852219 U CN 201821852219U CN 208950861 U CN208950861 U CN 208950861U
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- mounting groove
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Abstract
A kind of blade structure of small-sized oil-sealed sliding vane vacuum pump, belongs to technical field of vacuum equipment.Including vacuum pump and oil mist separator, there is pump chamber in vacuum pump, rotor is installed in pump chamber, rotor is rotated by motor driven, one group of blade is installed on rotor, one end of blade is resisted against in the cavity wall of pump chamber and slides towards the sliding of the center of circle direction of rotor, the other end on rotor, feature: the both ends of blade are respectively formed with cambered surface, chamfering is set at left and right sides of cambered surface, mounting groove is set on rotor, wherein the depth of the mounting groove is greater than the length of blade, and the width of the mounting groove is greater than the width of blade.The squash type friction between blade and dust is prevented, the rate of depreciation of blade is slowed down；Blade and mounting groove and cavity wall are improved against the stability and wearability of sliding, while can further extend the service life of blade by overturning blade, the timeliness of maintenance is improved, reduces use cost.
Description
Technical field
The utility model belongs to technical field of vacuum equipment, and in particular to a kind of blade of small-sized oil-sealed sliding vane vacuum pump
Structure.
Background technique
Oil-sealed sliding vane vacuum pump is a kind of oil lubrication pump, and existing small-sized oil-sealed sliding vane vacuum pump is difficult severe
It works steadily in the long term under operating condition, the main reason is that vacuum pump can suck a large amount of dust particle, vacuum pump in the presence of a harsh environment
Interior blade mostly uses greatly the cuboid plate structure of nonmetallic materials again, and blade can be scratched when running at high speed by dust particles
And unstable wear, decline so as to cause blade service life reduction, vacuum degree.
In view of the foregoing, it is necessary to design that a kind of structure is simple, intensity is high, and small-sized oil seal type with long service life
The blade structure of sliding vane rotary vacuum pump.For this purpose, the applicant has made beneficial design, technical solution described below be
It is generated under this background.
Summary of the invention
The task of the utility model is to provide a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump, advantageously improve
Blade structure and the wearability for being improved blade increase workspace area and extend working life.
What the task of the utility model was performed by, a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump, packet
A vacuum pump and the oil mist separator that is connected to vacuum pump are included, constituting in the vacuum pump has a pump chamber, peace in the pump chamber
Equipped with a rotor, the rotor is rotated by being mounted on the motor driven on the outside of vacuum pump, and one group of rotation is equipped on rotor
Piece, one end of the blade is slided on rotor towards the center of circle direction of rotor, and the other end of blade is resisted against the cavity wall of pump chamber
Upper sliding, it is characterised in that: the both ends of the blade are respectively formed with a cambered surface, distinguish again in the left and right sides of the cambered surface
It is provided with a chamfering, the mounting groove for installing blade is offered on the rotor, the depth of the mounting groove is H ' and width
Degree is B ', and the length of the blade is H and width is B, wherein the depth H ' of the mounting groove is greater than the length H of blade,
The width B ' of the mounting groove is greater than the width B of the blade.
In a specific embodiment of the utility model, be additionally provided on the vacuum pump air inlet and one with
The exhaust valve of oil mist separator connection.
In another specific embodiment of the utility model, the blade is made of nonmetallic materials.
In another specific embodiment of the utility model, the radius of the cambered surface is 10mm~15mm.
In another specific embodiment of the utility model, the radius of the chamfering is 0.3mm~1mm.
The utility model after adopting the above structure, has the advantages that firstly, since by blade and rotor in junction
There are certain overdose spaces, thus effectively prevent the squash type friction between blade and dust, slow down the mill of blade
Damage rate；Secondly as the both ends of blade to be designed to the structure of cambered surface cooperation chamfering, thus improve blade and mounting groove and
Cavity wall while can further extend the service life of blade against the stability and wearability of sliding by overturning blade.
Detailed description of the invention
Fig. 1 is the planar structure cross-sectional view of an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of blade described in the utility model.
Fig. 3 is the structural schematic diagram of rotor described in the utility model.
In figure: 1. vacuum pumps, 11. pump chambers, 12. rotors, 121. mounting grooves, 13. blades, 131. cambered surfaces, 132. chamferings,
14. cavity wall, 15. air inlets, 16. exhaust valves, 17. motors；2. oil mist separator.
Specific embodiment
It elaborates by way of examples below, but is not to the utility model to the description of embodiment
Limitation, it is any according to the utility model design it is made be only that formal but not substantive equivalent transformation should all regard
For category of the technical solutions of the present invention.
It please refers to Fig.1 to Fig.3, the utility model relates to a kind of blade structures of small-sized oil-sealed sliding vane vacuum pump, including
One vacuum pump 1 and the oil mist separator 2 that is connected to vacuum pump 1, constituting in the vacuum pump 1 has a pump chamber 11, the pump chamber
One rotor 12 is installed, the rotor 12 is rotated by being mounted on the driving of motor 17 in 1 outside of vacuum pump, in rotor 12 in 11
On one group of blade 13 is installed, one end of the blade 13 is slided on rotor 12 towards the center of circle direction of rotor 12, and blade 13
The other end be resisted against in the cavity wall 14 of pump chamber 11 and slide, feature: the both ends of the blade 13 are respectively formed with a cambered surface
131, it is respectively arranged with a chamfering 132 again in the left and right sides of the cambered surface 131, offers on the rotor 12 for installing
The mounting groove 121 of blade 13, the depth of the mounting groove 121 is H ' and width is B ', the length of the blade 13 be H and
Width is B, wherein the depth H ' of the mounting groove 121 is greater than the length H of blade 13, the width B ' of the mounting groove 121 is big
In the width B of the blade 13.The radius of the cambered surface 131 is 10mm~15mm, preferably 12mm.The chamfering
132 radius is 0.3mm~1mm, preferably 0.5mm.
Further, an air inlet 15 and the exhaust that connect with oil mist separator 2 are additionally provided on the vacuum pump 1
Valve 16.
Further, the blade 13 is made of nonmetallic materials.
Please continue to refer to Fig. 1 and Fig. 2 and Fig. 3 is combined, when the rotor 12 rotates, the blade 13 can turn
In the mounting groove 121 of son 12 sliding and prevent on depth and width direction there are certain surplus blade 13 when rotated because
Squeeze dust and caused by wear.During following rotor 12 to rotate, cambered surface 131 sticks on the blade 13 simultaneously
It is slided in cavity wall 14, and the two sides of cambered surface 131 have chamfering 132 to be protected, therefore the wearability at blade both ends is greatly improved, and
And above-mentioned globoidal structure also improves workspace area, further improves the speed vacuumized.In addition, when the blade 13
When one end cambered surface 131 and the abrasion of chamfering 132 or damage, blade 13 can also be turned around to install, can debugged in time, without
It waits and orders blade, not only further extend the service life of blade 13, but also improve the timeliness of maintenance, reducing makes
Use cost.
Claims (5)
1. a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump, including a vacuum pump (1) He Yiyu vacuum pump (1) connection
Oil mist separator (2), interior constitute of the vacuum pump (1) have a pump chamber (11), are equipped with a rotor (12) in the pump chamber (11),
The rotor (12) is equipped with one on rotor (12) by motor (17) the driving rotation being mounted on the outside of vacuum pump (1)
Group blade (13), one end of the blade (13) is slided on rotor (12) towards the center of circle direction of rotor (12), and blade (13)
The other end be resisted against in the cavity wall (14) of pump chamber (11) and slide, it is characterised in that: distinguish shape in the both ends of the blade (13)
Cheng Youyi cambered surface (131) is respectively arranged with a chamfering (132), the rotor in the left and right sides of the cambered surface (131) again
(12) mounting groove (121) for installing blade (13) is offered on, the depth of the mounting groove (121) is H ' and width is
The length of B ', the blade (13) are H and width is B, wherein the depth H ' of the mounting groove (121) is greater than blade (13)
Length H, the width B ' of the mounting groove (121) is greater than the width B of the blade (13).
2. a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump according to claim 1, it is characterised in that described
The exhaust valve (16) of an air inlet (15) He Yiyu oil mist separator (2) connection is additionally provided on vacuum pump (1).
3. a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump according to claim 1, it is characterised in that described
Blade (13) is made of nonmetallic materials.
4. a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump according to claim 1, it is characterised in that described
The radius of cambered surface (131) is 10mm~15mm.
5. a kind of blade structure of small-sized oil-sealed sliding vane vacuum pump according to claim 1, it is characterised in that described
The radius of chamfering (132) is 0.3mm~1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821852219.4U CN208950861U (en) | 2018-11-12 | 2018-11-12 | A kind of blade structure of small-sized oil-sealed sliding vane vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821852219.4U CN208950861U (en) | 2018-11-12 | 2018-11-12 | A kind of blade structure of small-sized oil-sealed sliding vane vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950861U true CN208950861U (en) | 2019-06-07 |
Family
ID=66744458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821852219.4U Active CN208950861U (en) | 2018-11-12 | 2018-11-12 | A kind of blade structure of small-sized oil-sealed sliding vane vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950861U (en) |
-
2018
- 2018-11-12 CN CN201821852219.4U patent/CN208950861U/en active Active
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