CN208416928U - A kind of novel three screw vacuum pump - Google Patents
A kind of novel three screw vacuum pump Download PDFInfo
- Publication number
- CN208416928U CN208416928U CN201820539922.3U CN201820539922U CN208416928U CN 208416928 U CN208416928 U CN 208416928U CN 201820539922 U CN201820539922 U CN 201820539922U CN 208416928 U CN208416928 U CN 208416928U
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- CN
- China
- Prior art keywords
- gear
- screw rod
- screw
- pair
- driven
- 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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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses novel three screw vacuum pumps of one kind in dry vacuum pump field, including motor, intermeshing screw rod, pump block, bearing, shaft coupling two-by-two, screw rod and a pair of of driven screw are driven based on the screw rod difference, the main driving screw rod and a pair of of driven screw are located in pump block, main driving screw rod connection second gear and a pair of of driven screw are separately connected first gear and third gear, the first gear, second gear and third gear are intermeshed two-by-two, and the input terminal of the main driving screw rod connects motor by shaft coupling.The utility model has the advantage of big flow, exhaust is smooth, runs smoothly.
Description
Technical field
The utility model relates to dry vacuum pump technical field, in particular to a kind of novel three screw vacuum pump.
Background technique
Vacuum pump in the market is many kinds of, and traditional oil sealing vacuum pump, vortex pump etc., which can not meet technology, to be wanted
It asks, screw vacuum pump has many advantages, such as without friction, structurally reasonable, long service life, and most of at present is true using twin-screw
Sky pump, flow is smaller, is unable to satisfy the demand of big flow.
Utility model content
The purpose of the utility model is to provide a kind of big flows, novel three screw vacuum pump exhaust smoothness, run smoothly.
Purpose of the utility model is realized as follows: a kind of novel three screw vacuum pump, including motor, mutually nibble two-by-two
Screw rod, pump block, bearing, the shaft coupling of conjunction, the screw rod respectively based on drive screw rod and a pair of of driven screw, the main driving
Screw rod and a pair of of driven screw are located in pump block, and main driving screw rod connection second gear and a pair of of driven screw are separately connected first
Gear and third gear, the first gear, second gear and third gear are intermeshed two-by-two, it is described it is main driving screw rod it is defeated
Enter end and motor is connected by shaft coupling.
Compared with prior art, the utility model has the beneficial effects that: using three screw rods, main drive is driven by motor
Dynamic screw rod rotation, a pair of of the driven screw engaged with main driving screw rod also rotate with it, main driving screw rod and a pair of of driven screw
Between there are the gap of very little, when rotated air from air entry by being compressed to exhaust outlet discharge, increase flow, it is more stable,
It is vented more smooth.
As the further preferred scheme of the utility model, the first gear, second gear and the setting of third gear exist
In fuel tank.
As the further preferred scheme of the utility model, the first gear, second gear and third gear outside are all
Equipped with shaft coupling.
As the further preferred scheme of the utility model, the pump block front and back end be equipped with bearing, main driving screw rod and
A pair of of driven screw input terminal and output end are fixed in bearing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 motor, 2 screw rods: 21 main driving screw rods, 22 a pair of of driven screws, 3 pump blocks, 4 bearings, 5 shaft couplings, 6 the
One gear, 7 second gears, 8 third gears, 9 fuel tanks.
Specific embodiment
As shown in Figure 1, a kind of novel three screw vacuum pump, including motor 1, two-by-two intermeshing screw rod 2, pump block 3, axis
4, shaft coupling 5 is held, screw rod 21 and a pair of of driven screw 22 are driven based on the difference of screw rod 2, main driving screw rod 21 and a pair are driven
Screw rod 22 is located in pump block 3, and main driving screw rod 21 connects second gear 7 and a pair of of driven screw 22 is separately connected first gear 6
With third gear 8, the first gear 6, second gear 7 and third gear 8 are intermeshed two-by-two, the input of main driving screw rod 21
End connects motor 1 by shaft coupling 5.
Above-mentioned first gear 6, second gear 7 and third gear 8 are arranged in fuel tank 9.
Shaft coupling 5 is designed on the outside of above-mentioned first gear 6, second gear 7 and third gear 8.
Above-mentioned 3 front and back end of pump block is equipped with bearing 4, main driving screw rod 21 and a pair of of 22 input terminal of driven screw and output end
It is fixed in bearing 4.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (4)
1. a kind of novel three screw vacuum pump, including motor (1), two-by-two intermeshing screw rod (2), pump block (3), bearing (4),
Shaft coupling (5), it is characterised in that: screw rod (21) and a pair of of driven screw (22) are driven based on screw rod (2) difference, it is described
It is inner that main driving screw rod (21) and a pair of of driven screw (22) are located at pump block (3), main driving screw rod (21) connect second gear (7) and
A pair of of driven screw (22) is separately connected first gear (6) and third gear (8), the first gear (6), second gear (7)
It is intermeshed two-by-two with third gear (8), the input terminal of main driving screw rod (21) passes through shaft coupling (5) connection motor (1).
2. novel three screw vacuum pump of one kind according to claim 1, it is characterised in that: the first gear (6), second
Gear (7) and third gear (8) setting are in fuel tank (9).
3. novel three screw vacuum pump of one kind according to claim 1, it is characterised in that: the first gear (6), second
Shaft coupling (5) are designed on the outside of gear (7) and third gear (8).
4. novel three screw vacuum pump of one kind according to claim 1, it is characterised in that: pump block (3) front and back end is set
Have bearing (4), main driving screw rod (21) and a pair of of driven screw (22) input terminal and output end are fixed in bearing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539922.3U CN208416928U (en) | 2018-04-17 | 2018-04-17 | A kind of novel three screw vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820539922.3U CN208416928U (en) | 2018-04-17 | 2018-04-17 | A kind of novel three screw vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416928U true CN208416928U (en) | 2019-01-22 |
Family
ID=65119623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820539922.3U Expired - Fee Related CN208416928U (en) | 2018-04-17 | 2018-04-17 | A kind of novel three screw vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208416928U (en) |
-
2018
- 2018-04-17 CN CN201820539922.3U patent/CN208416928U/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: 20190122 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |