CN209370073U - A kind of four leaf roots pump rotor of High Pressure Difference - Google Patents
A kind of four leaf roots pump rotor of High Pressure Difference Download PDFInfo
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- CN209370073U CN209370073U CN201822274693.XU CN201822274693U CN209370073U CN 209370073 U CN209370073 U CN 209370073U CN 201822274693 U CN201822274693 U CN 201822274693U CN 209370073 U CN209370073 U CN 209370073U
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- pressure difference
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Abstract
The utility model provides a kind of four leaf roots pump rotor of High Pressure Difference, belongs to Roots's pump technical field.The problem of it solves existing lobe pump state labile in use, influences the gas tightness of lobe pump.Four leaf roots pump rotor of this High Pressure Difference, lobe pump includes pump case, cavity is equipped in pump case, pump case has inlet and outlet, inlet and outlet is connected with cavity, intermeshing power rotor and driven rotor are equipped in cavity, power rotor includes four active blades, driven rotor includes four passive blades, active blade reverses to rear end towards side from front end and forms windup-degree one, passive blade reverses to rear end towards the other side from front end and forms windup-degree two, windup-degree one is identical as windup-degree two, the sealing that can be leant with the cavity wall of cavity is all had on active blade and passive blade.Four leaf roots pump rotor of this High Pressure Difference can improve the gas tightness of lobe pump.
Description
Technical field
The utility model belongs to Roots's pump technical field, is related to a kind of four leaf roots pump rotor of High Pressure Difference.
Background technique
Roots vaccum pump refers to that pump is built-in there are two the lobed rotor of opposite direction synchronous rotary, reversed by lobed rotor
The pushing of rotation acts on the pump for carrying out mobile gas and realizing pumping.
But existing rotor is in the course of rotation, the sealing performance still existed between rotor and pump case is bad, few
The air-flow of amount can be flowed out from the gap of rotor and pump case, result in rotor during rotation, it may appear that the case where pressure release goes out
It is existing, so that the Suck and exhaust pressure of lobe pump is unstable, improve the exhaust pulses noise of lobe pump in use, Jin Erluo
Thatch pumps in use, and state labile is easy to appear failure when causing use.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of four leaf Roots of High Pressure Difference
Pump rotor, technical problem to be solved in the utility model are how to improve the gas tightness of lobe pump.
The purpose of this utility model can be realized by the following technical scheme:
A kind of four leaf roots pump rotor of High Pressure Difference, lobe pump includes pump case, and cavity, the pump case tool are equipped in the pump case
Have inlet and outlet, the inlet and outlet is connected with cavity, be equipped in the cavity intermeshing power rotor and
Driven rotor, which is characterized in that the power rotor includes four active blades, and the driven rotor includes four from movable vane
Piece, the active blade reverse to rear end towards side from front end and are formed windup-degree one, the passive blade from front end extremely
Windup-degree two is reversed towards the other side and formed in rear end, and the windup-degree one is identical as windup-degree two, the active leaf
The sealing that can be leant with the cavity wall of cavity is all had on piece and passive blade.
Working principle: in lobe pump use process, power rotor drives driven rotor rotation, and gas is entered from import
In the cavity of pump case, after power rotor and driven rotor rotate windup-degree one at this time, since power rotor has windup-degree
One and driven rotor there is windup-degree two, therefore during power rotor and driven rotor rotate, power rotor and from
The gas sealing ability of turn gets a promotion, so that the continuous and stable of Suck and exhaust pressure is increased, and it is close on active blade
Envelope portion leans with cavity cavity wall, and the sealing on passive blade leans with cavity cavity wall, therefore works as a part of excircle gas
When body backflows, need to enable by the sealing on the sealing on driven rotor either active blade and blow exhaust process
It is completely self-contained to separate, to improve the gas tightness of lobe pump.
In above-mentioned four leaf roots pump rotor of High Pressure Difference, the power rotor is recessed between two adjacent active blades
It falls into and forms engaging groove one, the driven rotor is recessed between two adjacent passive blades and forms engaging groove two, the active
The sealing of blade can be embedded into engaging groove one and lean with the cell wall of engaging groove one or the sealing energy of passive blade
It is embedded into engaging groove two and leans with the cell wall of engaging groove two.
The setting of the structure, so that the sealing performance in rotor rotation process between active blade and passive blade is more
Stablize, further improves the gas tightness of lobe pump.
In above-mentioned four leaf roots pump rotor of High Pressure Difference, the windup-degree one is 10 °~25 °.
By the way that windup-degree is arranged, so that active blade and passive blade often rotate a circle, each 8 times of suction and discharge, increase suction
The continuous and stable of pressure at expulsion, thus reduce the exhaust pulses noise of lobe pump in use, it is further to improve
Stability when lobe pump uses.
In above-mentioned four leaf roots pump rotor of High Pressure Difference, the sealing is elongated.
The setting of the structure, enables the setting that sealing is more stable, and is ensure that in the course of rotation from turn
The sealing of son and the sealing of power rotor can lean with the cavity wall of cavity, improve the gas sealing ability of rotor.
In above-mentioned four leaf roots pump rotor of High Pressure Difference, the sealing with a thickness of 10~20mm.
The setting of the structure, so that drain state or the medium more containing dust in use, can be improved in lobe pump
Ability, improve the pressure difference of exhaust, further improve the stability of Roots's pump work.
In above-mentioned four leaf roots pump rotor of High Pressure Difference, the end face of the sealing is arc-shaped.
The end face of the setting of the structure, sealing can preferably fit with the cavity wall of cavity, further improve sieve
The gas tightness of thatch pump.
Compared with prior art, four leaf roots pump rotor of this High Pressure Difference has the advantage that: sealing on active blade and
Sealing on passive blade leans with cavity cavity wall, when a part of excircle gas backflow, needs by from turn
Sealing on sealing on son either active blade enables and blows that exhaust process is completely self-contained to be separated, to improve
The gas tightness of lobe pump.
Detailed description of the invention
Fig. 1 is the cross-sectional view after the assembly of four leaf roots pump rotor of this High Pressure Difference.
Fig. 2 is the structural schematic diagram of four leaf roots pump rotor of this High Pressure Difference.
Fig. 3 is the partial enlarged view in Fig. 1 at A.
Fig. 4 is the partial enlarged view in Fig. 1 at B.
In figure, 1, pump case；11, cavity；12, import, 13, outlet；2, power rotor；21, active blade；22, engaging groove
One；3, driven rotor；31, passive blade；32, engaging groove two；4, sealing.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, four leaf roots pump rotor of this High Pressure Difference, lobe pump includes pump case 1, and cavity 11, pump are equipped in pump case 1
Shell 1 has import 12 and outlet 13, and import 12 and outlet 13 are connected with cavity 11, and intermeshing master is equipped in cavity 11
Turn 2 and driven rotor 3.
Specifically, as shown in Figs 1-4, power rotor 2 include four active blades 21, driven rotor 3 include four from
Movable vane piece 31, active blade 21 reverse to rear end towards side from front end and are formed windup-degree one, and passive blade 31 is from front end
Windup-degree two is reversed and formed to rear end towards the other side, and windup-degree one is identical as windup-degree two, 21 He of active blade
The sealing 4 that can be leant with the cavity wall of cavity 11 is all had on passive blade 31.
Working principle: in lobe pump use process, power rotor 2 drive driven rotor 3 rotate, gas from import 12 into
Enter into the cavity 11 of pump case 1, after power rotor 2 and driven rotor 3 rotate windup-degree one at this time, since power rotor 2 has
There are windup-degree one and driven rotor 3 that there is windup-degree two, therefore during power rotor 2 and driven rotor 3 rotate,
The gas sealing ability of power rotor 2 and driven rotor 3 gets a promotion, so that the continuous and stable of Suck and exhaust pressure is increased, and
Sealing 4 on active blade 21 leans with 11 cavity wall of cavity, and the sealing 4 on passive blade 31 offsets with 11 cavity wall of cavity
It leans on, therefore when a part of excircle gas backflow, needs by the either active blade 21 of the sealing 4 on driven rotor 3
On sealing 4, enable and blow that exhaust process is completely self-contained to be separated, to improve the gas tightness of lobe pump.
As shown in Figure 2 and Figure 4, power rotor 2 is recessed between two adjacent active blades 21 and forms engaging groove 1,
Driven rotor 3 is recessed between two adjacent passive blades 31 and forms engaging groove 2 32, and the sealing 4 of active blade 21 can be embedding
Enter into engaging groove 1 and leans with the cell wall of engaging groove 1 or the sealing 4 of passive blade 31 can be embedded into and engage
It leans in slot 2 32 and with the cell wall of engaging groove 2 32.
As shown in Fig. 2, windup-degree one is 10 °~25 °.
As shown in Fig. 2, sealing 4 is elongated, the end face of sealing 4 is arc-shaped.
As shown in Figs 1-4, sealing 4 with a thickness of 10~20mm.
In the present embodiment, corrosion-inhibiting coating is coated on power rotor 2 and driven rotor 3.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (6)
1. a kind of four leaf roots pump rotor of High Pressure Difference, lobe pump include pump case (1), cavity (11) are equipped in the pump case (1), institute
Pump case (1) is stated to be connected with cavity (11) with import (12) and outlet (13), the import (12) and outlet (13), it is described
Intermeshing power rotor (2) and driven rotor (3) are equipped in cavity (11), which is characterized in that power rotor (2) packet
Include four active blades (21), the driven rotor (3) includes four passive blades (31), and the active blade (21) is from front end
Windup-degree one is reversed and formed to rear end towards side, and the passive blade (31) is reversed from front end to rear end towards the other side
And windup-degree two is formed, the windup-degree one is identical as windup-degree two, the active blade (21) and passive blade
(31) sealing (4) that can be leant with the cavity wall of cavity (11) is all had on.
2. four leaf roots pump rotor of High Pressure Difference according to claim 1, which is characterized in that the power rotor (2) is two
Recess forms engaging groove one (22) between a adjacent active blade (21), and the driven rotor (3) is two adjacent driven
Recess forms engaging groove two (32) between blade (31), and the sealing (4) of the active blade (21) can be embedded into engaging groove one
(22) it leans in and with the cell wall of engaging groove one (22) or the sealing (4) of passive blade (31) can be embedded into engaging groove two
(32) it leans in and with the cell wall of engaging groove two (32).
3. four leaf roots pump rotor of High Pressure Difference according to claim 1 or 2, which is characterized in that the windup-degree one is
10 °~25 °.
4. four leaf roots pump rotor of High Pressure Difference according to claim 1 or 2, which is characterized in that the sealing (4) is in length
Bar shaped.
5. four leaf roots pump rotor of High Pressure Difference according to claim 4, which is characterized in that the thickness of the sealing (4)
For 10~20mm.
6. four leaf roots pump rotor of High Pressure Difference according to claim 4, which is characterized in that the end face of the sealing (4)
It is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274693.XU CN209370073U (en) | 2018-12-30 | 2018-12-30 | A kind of four leaf roots pump rotor of High Pressure Difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822274693.XU CN209370073U (en) | 2018-12-30 | 2018-12-30 | A kind of four leaf roots pump rotor of High Pressure Difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370073U true CN209370073U (en) | 2019-09-10 |
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ID=67828851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822274693.XU Active CN209370073U (en) | 2018-12-30 | 2018-12-30 | A kind of four leaf roots pump rotor of High Pressure Difference |
Country Status (1)
| Country | Link |
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| CN (1) | CN209370073U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836187A (en) * | 2019-11-22 | 2020-02-25 | 烟台菱辰能源有限公司 | Four leaf roots formula air compressor machine structures of giving vent to anger |
| CN111749890A (en) * | 2020-05-22 | 2020-10-09 | 浙江珂勒曦动力设备股份有限公司 | Twisted blade blower or vacuum pump |
-
2018
- 2018-12-30 CN CN201822274693.XU patent/CN209370073U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836187A (en) * | 2019-11-22 | 2020-02-25 | 烟台菱辰能源有限公司 | Four leaf roots formula air compressor machine structures of giving vent to anger |
| CN110836187B (en) * | 2019-11-22 | 2022-06-03 | 烟台东德氢能技术有限公司 | Four leaf roots formula air compressor machine structures of giving vent to anger |
| CN111749890A (en) * | 2020-05-22 | 2020-10-09 | 浙江珂勒曦动力设备股份有限公司 | Twisted blade blower or vacuum pump |
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