CN206571683U - A kind of roots vacuum - Google Patents
A kind of roots vacuum Download PDFInfo
- Publication number
- CN206571683U CN206571683U CN201720119733.6U CN201720119733U CN206571683U CN 206571683 U CN206571683 U CN 206571683U CN 201720119733 U CN201720119733 U CN 201720119733U CN 206571683 U CN206571683 U CN 206571683U
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- CN
- China
- Prior art keywords
- pump housing
- pump
- roots vacuum
- rotor
- end cap
- Prior art date
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Abstract
A kind of roots vacuum of the utility model, the vavuum pump includes base（1）, the base（1）On the pump housing is installed（2）, the pump housing（2）Rear and front end be separately installed with end cap（3）, a countershaft（4）Two ends pass through bearing（5）Wear and be connected on end cap（3）Between, two rotating shafts（4）It is upper to have rotor respectively（6）, the rotor（6）For three leaf involute shape rotors, and two rotors（6）Intermeshing；The pump housing（2）Top be provided with air entry（2.1）, bottom is provided with exhaust outlet（2.2）, the pump housing（2）Side be provided with air intlet（2.3）.A kind of roots vacuum of the utility model, good cooling results and without water cooling, directly cooled down using outside air.
Description
Technical field
The utility model is related to a kind of vavuum pump, more particularly, to a kind of Roots vaccum pump for being capable of discharging directly into atmosphere, belongs to
Vacuum pump technology field.
Background technology
At present, common Roots vaccum pump directly can not arrange air, it is necessary to could be together with fore pump after prime series connection of pumps
Pumping；In line Roots vaccum pump is a kind of oil-free dry vacuum pump, can be applied to Aero-Space large space simulation test device,
The vacuum processing techniques such as the vacuum drying of chemical pharmaceutical industry, vacuum distillation, metallurgy industry ladle vacuum outgas.
Nowadays the common Roots vaccum pump used in these above-mentioned techniques makes due to being limited by its product structure
Somewhat misoperation will make Roots vaccum pump the defects such as overheat, overload occur during, and the reliability of pump is poor, influences sieve
The normal of thatch vavuum pump is used；And the roots vacuum that cools down indirectly is used due to being cooled device size and cold
But the influence of coolant-temperature gage, cooling water flow, equally occurred thermal overload phenomenon in use.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency there is provided a kind of good cooling results and without water cooling, directly profit
The roots vacuum cooled down with outside air.
What the purpose of this utility model was realized in：
A kind of roots vacuum, the vavuum pump includes is provided with the pump housing on base, the base, described
The rear and front end of the pump housing is separately installed with end cap, and the two ends of a countershaft are worn by bearing to be connected between end cap, in two rotating shafts
There is rotor respectively, the rotor is three leaf involute shape rotors, and two rotors intermeshings；It is provided with the top of the pump housing
Air entry, bottom is provided with exhaust outlet, and the side of the pump housing is provided with air intlet.
A kind of roots vacuum of the utility model, the air intlet is along the pump housing length direction side of being provided with
Shape gap.
Fuel tank is installed on a kind of roots vacuum of the utility model, a side end cap of the pump housing, it is described
Rotating shaft, which is inserted on one end in fuel tank, is set with gear, and two gears are meshed.
Motor is installed, the motor leads on a kind of roots vacuum of the utility model, the base
Shaft coupling is crossed with a rotating shaft to be connected.
Compared with prior art, the beneficial effects of the utility model are：
The utility model can substitute liquid-ring vacuum pump in sector applications such as metallurgy, chemical industry, pharmacy；Liquid rotary pump is made using water
For working solution, a large amount of waste water, processing cost height can be produced in use, there is potential pollution to environment may；And this patent is straight
Arrange air Roots vaccum pump to discharge without waste water and waste liquid, it is not necessary to which special cooling arrangement, structure is simpler, the use model of pump
Enclosing more to expand, and will not be limited by using vacuum, and any infringement will not be also caused to pump even if there is operational error.
Brief description of the drawings
Fig. 1 is a kind of structural representation of roots vacuum of the utility model.
A kind of side sectional view of roots vacuum of Fig. 2 the utility model.
Wherein：
Base 1, the pump housing 2, end cap 3, rotating shaft 4, bearing 5, rotor 6, fuel tank 7, gear 8, shaft coupling 9, motor 10；
Air entry 2.1, exhaust outlet 2.2, air intlet 2.3.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of roots vacuum that the utility model is related to, the vavuum pump includes
The pump housing 2 is installed, the rear and front end of the pump housing 2 is separately installed with end cap 3, the two of a countershaft 4 on base 1, the base 1
End is worn by bearing 5 to be connected between end cap 3, there is rotor 6 in two rotating shafts 4 respectively, and the rotor 6 is that three leaf involute shapes turn
Son, and two rotors 6 are intermeshed；The top of the pump housing 2 is provided with air entry 2.1, and bottom is provided with exhaust outlet 2.2, institute
The side for stating the pump housing 2 is provided with air intlet 2.3, and air intlet 2.3 is that the length direction of the pump housing 2 is provided with square gap；
Rotor 6 and the pump housing 2 are cooled down in the pump housing 2 so as to ensure that enough cooling airs can enter；
It is provided with fuel tank 7, one end that the rotating shaft 4 is inserted in fuel tank 7 and covers on one side end cap 3 of the pump housing 2
Equipped with gear 8, and two gears 8 are meshed；
Motor 10 is installed, the motor 10 is connected by shaft coupling 9 with a rotating shaft 4 on the base 1；
This patent motor is imparted power to by flexible clutch drives power rotor after a rotating shaft, power rotor leads to
A pair of synchromesh gears driving driven rotor crossed in fuel tank, two rotors make constant speed reverse rotation in the pump housing, realize inhale respectively
Gas and degassing function, because rotor uses trilobed structure, therefore each rotor rotates a circle can realize three air-breathings and exhaust
Effect；The intake and exhaust compression ratio of Roots vaccum pump reaches 1:10, compressed gas can produce very big temperature rise, it is ensured that Roots vaccum pump
Operation reliably and with long-term, it is necessary to Roots vaccum pump is effectively cooled down, because the air entry of pump has certain vacuum degree, when turn
When sub- cavity is with pump housing side air import UNICOM, normal pressure and temperature air is sucked pump chamber to realize the pump housing using the effect of pressure difference
The cooling of inner heat part；The cooling air and the air entry 2.1 of vavuum pump that this patent air inlet 2.3 is sucked are not altered mutually
Even：Because the three lobe rotor flap of the rotor 6 of three leaf involute shape rotor structures is three flaps in 120 ° of angle distributions, together
When by the angle between the air entry 2.1 and air intlet 2.3 on the pump housing 2 be more than adjacent flap between 120 ° of angles so that
When air sucks air intlet 2.3, air entry 2.1 is closed by flap, the cooling sky so sucked via air intlet 2.3
Gas will not enter air entry 2.1, so that the cooling gas of suction would not influence the rate of air sucked in required and vacuum of vavuum pump；And
And this direct cooling mode can not only save energy consumption than more than 20 DEG C of the temperature drop of traditional indirect type cooling pump, and
The operational reliability of pump can be improved.
In addition：It should be noted that above-mentioned embodiment is only a prioritization scheme of this patent, the skill of this area
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent.
Claims (4)
1. a kind of roots vacuum, it is characterised in that：The vavuum pump includes base（1）, the base（1）On
The pump housing is installed（2）, the pump housing（2）Rear and front end be separately installed with end cap（3）, a countershaft（4）Two ends pass through axle
Hold（5）Wear and be connected on end cap（3）Between, two rotating shafts（4）It is upper to have rotor respectively（6）, the rotor（6）Turn for three leaf involute shapes
Son, and two rotors（6）Intermeshing；The pump housing（2）Top be provided with air entry（2.1）, bottom is provided with exhaust outlet
（2.2）, the pump housing（2）Side be provided with air intlet（2.3）.
2. a kind of roots vacuum as claimed in claim 1, it is characterised in that：The air intlet（2.3）For edge
The pump housing（2）Length direction is provided with square gap.
3. a kind of roots vacuum as claimed in claim 1, it is characterised in that：The pump housing（2）A side end cap
（3）On fuel tank is installed（7）, the rotating shaft（4）It is inserted in fuel tank（7）Gear is set with interior one end（8）, and two teeth
Wheel（8）It is meshed.
4. a kind of roots vacuum as claimed in claim 1, it is characterised in that：The base（1）On electricity is installed
Motivation（10）, the motor（10）Pass through shaft coupling（9）With a rotating shaft（4）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119733.6U CN206571683U (en) | 2017-02-09 | 2017-02-09 | A kind of roots vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119733.6U CN206571683U (en) | 2017-02-09 | 2017-02-09 | A kind of roots vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206571683U true CN206571683U (en) | 2017-10-20 |
Family
ID=60058393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720119733.6U Active CN206571683U (en) | 2017-02-09 | 2017-02-09 | A kind of roots vacuum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206571683U (en) |
-
2017
- 2017-02-09 CN CN201720119733.6U patent/CN206571683U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |