CN206221277U - A kind of rotary-vane vaccum pump - Google Patents
A kind of rotary-vane vaccum pump Download PDFInfo
- Publication number
- CN206221277U CN206221277U CN201621233627.2U CN201621233627U CN206221277U CN 206221277 U CN206221277 U CN 206221277U CN 201621233627 U CN201621233627 U CN 201621233627U CN 206221277 U CN206221277 U CN 206221277U
- Authority
- CN
- China
- Prior art keywords
- road
- oil
- pump
- rotary
- back oil
- 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.)
- Active
Links
Abstract
The utility model provides a kind of rotary-vane vaccum pump, belongs to field of mechanical technique.It solves the problems, such as the oil-returning structure complexity of existing vavuum pump and easily oil leak.This rotary-vane vaccum pump, including fuel tank, case lid, pump case, and front pump cover, the cavity that rear end cap is encircled a city with pump case, case lid forms discharge chamber and collection chamber with fuel tank, the axis hole of bias is offered on front pump cover, there is upper engaging lug on pump cover, left engaging lug, right engaging lug and flange part, spill port one is further opened with front pump cover, the back oil road one being connected with spill port one is offered on flange part, exit on flange part positioned at back oil road one is provided with plug, the spill port two being connected with back oil road one is offered on the inwall of flange part, the back oil road two being connected with spill port two is offered on pump case, the back oil road three being connected with back oil road two is offered on case lid, exit in case lid positioned at back oil road three is provided with check valve.The utility model have it is oil-proof, and oil return efficiency high advantage.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of vavuum pump, more particularly to a kind of rotary-vane vaccum pump.
Background technology
Traditional rotary-vane vaccum pump, is its oil inside offering, the unlatching of oil inlet and closure by its oil supply unit of lubricating oil
To control oil-feed, when improper or parts senile abrasion is assembled, oil supply mechanism failure can be caused, cannot get the parts in pump
Effective lubrication, easily causes axle and kills or dry grind with axis hole, blade and pump wall, influences service life, oil supply unit of lubricating oil
Complexity, inconvenient maintenance.
For above-mentioned problem, people are made that various improvement to rotary-vane vaccum pump, and some are also applied
Patent, such as Chinese patent literature data discloses a kind of vavuum pump, [application number：201220215208.1；Granted publication
Number：CN202579194U], including tubular pump case, the drive end bearing bracket and rear end cap at pump case two ends are respectively arranged on, below pump case
Fuel tank and collection chamber are respectively equipped with, front end is covered with inlet port, and inlet port is connected with fuel tank, and drive end bearing bracket is additionally provided with oil return opening, returned
Hydraulic fluid port is connected with collection chamber by oil return connecting tube, and the peripheral passage of oil-feed and oil return is integrally formed.
Above-mentioned vavuum pump solve oil supply mechanism fuel feeding inconvenience, baroque problem, but due to vacuum pump operation mistake
Oil pressure is very high in oil return connecting tube in journey, and the spilling of oil return connecting tube interface oil, and oil return connecting tube can be caused to install not
Just.
The content of the invention
The purpose of this utility model is directed to the above-mentioned problems in the prior art, there is provided a kind of oil-proof, and returns
The rotary-vane vaccum pump of oily efficiency high.
The purpose of this utility model can be realized by following technical proposal：A kind of rotary-vane vaccum pump, including fuel tank, case
Lid, tubular pump case, and be respectively arranged on the front pump cover and rear pump cover of pump case rear and front end, and front pump cover and rear end cap are by pump
The cavity of the inside besieged city closing of shell, described case lid is installed on fuel tank, and pump case is arranged on the top of case lid, institute by bolt
That states case lid and fuel tank be internally formed discharge chamber and collection chamber, is offered on the front pump cover and is set for the eccentric with the center portion thereof
Axis hole, the upper engaging lug with outwardly convex, left engaging lug, right engaging lug and flange part on the outer circle wall of the pump cover,
The oil suction road being connected with axis hole is offered on the lateral wall of described upper engaging lug, offered on the inwall of the front pump cover with
The oil-sucking hole that oil suction road is connected, is connected with fuel sucking pipe, it is characterised in that the front pump cover between the oil suction road and collection chamber
Inwall on be further opened with spill port one, the back oil road one being connected with spill port one, institute are offered on the lateral wall of flange part
Exit on the flange part stated positioned at back oil road one is provided with plug, is offered on the inwall of the flange part and back oil road one
The spill port two being connected, offers the back oil road two being connected with spill port two on described pump case, opened on described case lid
It is provided with the exit in the back oil road three being connected with back oil road two, the case lid positioned at back oil road three and check valve is installed, and
The check valve is in discharge chamber.
In a kind of above-mentioned rotary-vane vaccum pump, the diameter of described back oil road one, back oil road two and back oil road three according to
Secondary increase.
In a kind of above-mentioned rotary-vane vaccum pump, the diameter with diameter greater than spill port one of the oil-sucking hole.
In a kind of above-mentioned rotary-vane vaccum pump, the diameter of the spill port one is identical with the diameter of back oil road one.
In a kind of above-mentioned rotary-vane vaccum pump, the diameter of the spill port one and back oil road one for 0.8mm extremely
Between 1.2mm.
In a kind of above-mentioned rotary-vane vaccum pump, described spill port one is located at the surface of back oil road one.
In a kind of above-mentioned rotary-vane vaccum pump, described back oil road one and the angle of horizontal plane be 10 ° to 20 ° it
Between.
In a kind of above-mentioned rotary-vane vaccum pump, the oil-sucking hole is located at the surface in oil suction road.
In a kind of above-mentioned rotary-vane vaccum pump, described oil suction road and the angle of vertical plane are between 10 ° to 20 °.
Compared with prior art, in this rotary-vane vaccum pump check valve is provided with discharge chamber, because pressure differential is produced
Fluid be back in back oil road one by back oil road three and back oil road two by check valve, shaping fast and effectively oil return lead to
Road, it is to avoid the oil leakage phenomenon that oil return pipe is caused is connected by outer wall.
Brief description of the drawings
Fig. 1 is the side structure schematic view of this rotary-vane vaccum pump.
Fig. 2 is the structural representation at the front pump cover of this rotary-vane vaccum pump.
In figure, 1, fuel tank；2nd, case lid；3rd, pump case；4th, front pump cover；6th, bolt；7th, discharge chamber；8th, collection chamber；9th, axis hole；
10th, upper engaging lug；11st, left engaging lug；12nd, right engaging lug；13rd, flange part；14th, oil suction road；15th, oil-sucking hole；16th, fuel sucking pipe；
17th, spill port one；18th, back oil road one；19th, plug；20th, spill port two；21st, back oil road two；22nd, back oil road three；23rd, it is unidirectional
Valve.
Specific embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1 and Figure 2, this rotary-vane vaccum pump includes fuel tank 1, case lid 2, tubular pump case 3, and sets respectively
In the front pump cover 4 and rear pump cover of the rear and front end of pump case 3, and the sky that front pump cover 4 closes the inside besieged city of pump case 3 with rear end cap
Chamber, case lid 2 is installed on fuel tank 1, and pump case 3 is arranged on the top of case lid 2 by bolt 6, and case lid 2 is internally formed with fuel tank 1
Discharge chamber 7 and collection chamber 8, offer the axis hole 9 being set for the eccentric with the center portion thereof, on the outer circle wall of pump cover on front pump cover 4
Upper engaging lug 10, left engaging lug 11, right engaging lug 12 and flange part 13 with outwardly convex, the lateral wall of upper engaging lug 10
On offer the oil suction road 14 being connected with axis hole 9, the oil-sucking hole being connected with oil suction road 14 is offered on the inwall of front pump cover 4
15, fuel sucking pipe 16 is connected between oil suction road 14 and collection chamber 8, spill port 1, flange are further opened with the inwall of front pump cover 4
The back oil road 1 being connected with spill port 1 is offered on the lateral wall in portion 13, positioned at back oil road 1 on flange part 13
Exit is provided with plug 19, and the spill port 2 20 being connected with back oil road 1, pump case 3 are offered on the inwall of flange part 13
On offer the back oil road 2 21 being connected with spill port 2 20, the oil return being connected with back oil road 2 21 is offered on case lid 2
Check valve 23 is installed positioned at the exit of back oil road 3 22 in road 3 22, case lid 2, and the check valve 23 is in discharge chamber 7.
The oil return principle of this rotary-vane vaccum pump is as follows：Vavuum pump operationally, produces pressure differential in pump case 3, inhaling
In the presence of power, the fluid in fuel tank 1, by the back oil road 3 22 on case lid 2, is connect by the check valve 23 at discharge chamber 7
By the back oil road 2 21 on pump case 3, be then passed through the spill port 2 20 and back oil road 1 of front pump cover 4, eventually pass back
Oilhole 1 is back to inside pump case 3, forms an efficient internal drainback passage.
In order to improve the efficiency of the oil suction and oil return of this rotary-vane vaccum pump, following design is drawn by test of many times,
Can cause oil suction and oil return when it is in hgher efficiency, the diameter of its back oil road 1, back oil road 2 21 and back oil road 3 22 increases successively
Greatly, the diameter with diameter greater than spill port 1 of oil-sucking hole 15, the diameter of spill port 1 is identical with the diameter of back oil road 1,
The diameter of spill port 1 and back oil road 1 is between 0.8mm to 1.2mm, spill port 1 is located at back oil road 1
Surface, oil-sucking hole 15 is located at the surface in oil suction road 14, and the angle of back oil road 1 and horizontal plane is between 10 ° to 20 °, to inhale
The angle of oil duct 14 and vertical plane is between 10 ° to 20 °.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein fuel tank 1, case lid 2, pump case 3, front pump cover 4, bolt 6, discharge chamber 7, collection chamber 8,
Axis hole 9, upper engaging lug 10, left engaging lug 11, right engaging lug 12, flange part 13, oil suction road 14, oil-sucking hole 15, fuel sucking pipe 16, return
The terms such as oilhole 1, back oil road 1, plug 19, spill port 2 20, back oil road 2 21, back oil road 3 22, check valve 23, but
It is not precluded from using the possibility of other terms.It is new just for the sake of more easily describing and explaining this practicality using these terms
The essence of type；Any additional limitation is construed as all to be disagreed with the utility model spirit.
Claims (9)
1. a kind of rotary-vane vaccum pump, including fuel tank（1）, case lid（2）, tubular pump case（3）, and it is respectively arranged on pump case
（3）The front pump cover of rear and front end（4）And rear pump cover, and front pump cover（4）With rear end cap by pump case（3）Inside besieged city closing sky
Chamber, described case lid（2）It is installed on fuel tank（1）On, pump case（3）By bolt（6）Installed in case lid（2）Top, the case
Lid（2）With fuel tank（1）Be internally formed discharge chamber（7）And collection chamber（8）, the front pump cover（4）On offer and the center portion thereof
The axis hole being set for the eccentric（9）, the upper engaging lug with outwardly convex on the outer circle wall of the pump cover（10）, left engaging lug
（11）, right engaging lug（12）And flange part（13）, described upper engaging lug（10）Lateral wall on offer and axis hole（9）Phase
The oil suction road of connection（14）, the front pump cover（4）Inwall on offer and oil suction road（14）The oil-sucking hole being connected（15）, institute
State oil suction road（14）With collection chamber（8）Between be connected with fuel sucking pipe（16）, it is characterised in that the front pump cover（4）Inwall on
It is further opened with spill port one（17）, flange part（13）Lateral wall on offer and spill port one（17）The back oil road one being connected
（18）, described flange part（13）It is upper to be located at back oil road one（18）Exit be provided with plug（19）, the flange part（13）
Inwall on offer and back oil road one（18）The spill port two being connected（20）, described pump case（3）On offer and oil return
Hole two（20）The back oil road two being connected（21）, described case lid（2）On offer and back oil road two（21）The oil return being connected
Road three（22）, the case lid（2）It is interior positioned at back oil road three（22）Exit check valve is installed（23）, and the check valve（23）
In discharge chamber（7）It is interior.
2. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that described back oil road one（18）, oil return
Road two（21）With back oil road three（22）Diameter increase successively.
3. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that described oil-sucking hole（15）Diameter it is big
In spill port one（17）Diameter.
4. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that described spill port one（17）Diameter
With back oil road one（18）Diameter it is identical.
5. a kind of rotary-vane vaccum pump according to claim 4, it is characterised in that described spill port one（17）With oil return
Road one（18）Diameter between 0.8mm to 1.2mm.
6. a kind of rotary-vane vaccum pump according to claim 4 or 5, it is characterised in that described spill port one（17）Position
In back oil road one（18）Surface.
7. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that described back oil road one（18）With level
The angle in face is between 10 ° to 20 °.
8. a kind of rotary-vane vaccum pump according to claim 1, it is characterised in that described oil-sucking hole（15）Positioned at oil suction
Road（14）Surface.
9. a kind of rotary-vane vaccum pump according to claim 1 or 8, it is characterised in that described oil suction road（14）With it is perpendicular
The angle faced directly is between 10 ° to 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233627.2U CN206221277U (en) | 2016-11-17 | 2016-11-17 | A kind of rotary-vane vaccum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233627.2U CN206221277U (en) | 2016-11-17 | 2016-11-17 | A kind of rotary-vane vaccum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221277U true CN206221277U (en) | 2017-06-06 |
Family
ID=58792620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621233627.2U Active CN206221277U (en) | 2016-11-17 | 2016-11-17 | A kind of rotary-vane vaccum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221277U (en) |
-
2016
- 2016-11-17 CN CN201621233627.2U patent/CN206221277U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016131427A1 (en) | Hydraulic pressure energy-saving device | |
| CN106089734A (en) | A kind of self priming pump | |
| CN206221277U (en) | A kind of rotary-vane vaccum pump | |
| CN108468647A (en) | Vacuum aided self priming pump | |
| CN206035836U (en) | Novel powerful self priming pump | |
| CN209228430U (en) | A kind of aviation piston engine oil return apparatus | |
| CN205805898U (en) | The fluid end of high pressure reciprocating pump | |
| CN205412479U (en) | Cold well device | |
| CN208871322U (en) | A kind of closed type single point press electrodynamic type butter lubricating arrangement | |
| CN207377741U (en) | Two-dimensional Liquid press pump and its cylinder body, guide rail | |
| CN101191563A (en) | Negative one-way valve for liquid transmission pipeline | |
| CN207975040U (en) | A kind of water pump cover | |
| CN205895464U (en) | Multiple sealed oil filter that fires | |
| CN202082581U (en) | Exhaust device for lubricating pump | |
| CN207989392U (en) | Vertical centrifugal pump | |
| CN206738249U (en) | A kind of water pump | |
| CN202579194U (en) | Vacuum pump | |
| CN106930980A (en) | A kind of water pump | |
| CN207080797U (en) | A kind of two-way inertia oil pump of locomotive lubricating system | |
| CN205991001U (en) | A kind of duplex cylinder compressor and adopt its air-conditioning | |
| CN220507274U (en) | Air source heat pump all-in-one | |
| CN205370799U (en) | A valve for diesel exhaust recycling | |
| CN105464751A (en) | Cyclone-type oil-gas separator | |
| CN204002936U (en) | Flows medium radial-flow type pressure driver | |
| CN208311922U (en) | A kind of gas turbine meter oiling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |