CN205592134U - Vertical sliding vane rotary vacuum pump with canned motor - Google Patents
Vertical sliding vane rotary vacuum pump with canned motor Download PDFInfo
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- CN205592134U CN205592134U CN201620318808.9U CN201620318808U CN205592134U CN 205592134 U CN205592134 U CN 205592134U CN 201620318808 U CN201620318808 U CN 201620318808U CN 205592134 U CN205592134 U CN 205592134U
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Abstract
The utility model discloses a rotary -vane vacuum pump, it keeps apart with electric machine coil completely to provide pump oil, safety and reliability, the second startup load is little, long service lifetime, energy -concerving and environment -protective vertical sliding vane rotary vacuum pump with canned motor, the vacuum pump shut down back second startup difficulty that exists has been solved among the prior art, need the big power motor of configuration, not only the energy consumption is high, and the vortex sheet easily splits, influence the life's etc. Of vacuum pump technical problem, it includes the support and locates the pump body and the bellytank of support top, the bellytank cover is located outside the pump body, be equipped with canned motor and main fuel tank in the below of support, the main fuel tank cover is located canned motor's lower extreme and is kept horizontal support, be equipped with the shielding vestlet at canned motor's electric motor rotor off -axial clearance cover, the upper end of shielding vestlet is feeding through the bellytank through the pump chamber that the support advances the oil path and the pump body, the lower extreme of shielding vestlet extends the intercommunication under the fluid face of main fuel tank, and the bellytank outer corresponding to the pump body is linked together with the main fuel tank through returning oil pipe again.
Description
Technical field
This utility model relates to a kind of rotary-vane vaccum pump, particularly relates to a kind of pump oil completely isolated with motor coil, safe and reliable, and restarting load is little, and service life is long, the vertical rotating sheet vacuum pump with shield electric machine of energy-conserving and environment-protective.
Background technology
nullUnit contraction rotary-vane vacuum pump generally uses horizontal type structure，The vacuum pump of this structure is after a shutdown，Owing to pump chamber is in negative pressure state，Therefore the pumping fluid in fuel tank is sucked in pump chamber under the effect of negative pressure，When vacuum pump is again started up，Pump rotor in pump chamber drives blade to rotate，The pumping fluid of blade extrusion pump intracavity is extruded from exhaust valve port，Owing to pumping fluid is incompressible，Therefore the starting stage run it is again started up at pump，The moment of flexure that blade extruding pumping fluid is born often is several times as much as the air of extrusion pump intracavity，The most therefore motor bears moment of torsion when being several times as much as properly functioning，Thus vacuum pump be equipped with motor must be fulfilled for start time high-power，Become apparent from due to vacuum pump oil viscosity increase at low ambient temperatures，Therefore after the vacuum pump of this structure is shut down at low ambient temperatures, restarting is more difficult，Drawbacks described above directly results in rotary-vane vaccum pump need to configure heavy-duty motor，Not only energy consumption is high，And easily cause the fracture of blade，Thus reduce the service life of vacuum pump.
Summary of the invention
It is completely isolated with motor coil that this utility model mainly provides a kind of pump oil; safe and reliable; and restarting load is little; service life is long, the vertical rotating sheet vacuum pump with shield electric machine of energy-conserving and environment-protective, solves restarting difficulty after rotary-vane vaccum pump is shut down present in prior art; heavy-duty motor need to be configured; not only energy consumption is high, and blade easy fracture, affects the technical problem in the service life etc. of vacuum pump.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals: a kind of vertical rotating sheet vacuum pump with shield electric machine, including support and be located at the pump housing above support and auxiliary fuel tank, auxiliary fuel tank covers at outside the pump housing, the shield electric machine and main fuel tank that the pump rotor in the pump housing can be driven to rotate it is provided with in the lower section of described support, main fuel tank covers at the lower end of shield electric machine and keeps horizontal support, rotor axis of electric external series gap at shield electric machine is arranged with shielding vestlet, the upper end of shielding vestlet connects auxiliary fuel tank through support oil-feed path with the pump chamber of the pump housing, the lower end of shielding vestlet extends connection under the oil level of main fuel tank, and be connected with main fuel tank further through oil return pipe corresponding to the auxiliary fuel tank outside the pump housing.Change rotary-vane vaccum pump into vertical structure; i.e. the pump housing and auxiliary fuel tank are upper; motor under; pump chamber can be naturally flowed out under gravity by the pumping fluid in negative pressure intaking pump for pipe body pump chamber after shutdown; thus can reduce torque when vacuum pump is again started up; configuring torque motor high-power, big without starting for two friendships of vacuum pump, energy-conserving and environment-protective, service life of vacuum pump is long；nullIn order to avoid being enclosed in after work after a while for the axle of pump rotor sealing, abrasion leakage of oil easily occurs，The pumping fluid of pump chamber leakage causes electrical fault to use shield electric machine instead after flowing into motor still further below，And main fuel tank is set in the lower section of shield electric machine，The shielding vestlet that main fuel tank is covered on outside rotor axis of electric by set is connected with the pump housing，I.e. pumping fluid in main fuel tank carries over the gap of shielding vestlet and rotor between centers and is upwardly into pump chamber and is lubricated sealing，Air vent from the pump housing is expelled to auxiliary fuel tank again，Pumping fluid in auxiliary fuel tank is back to main fuel tank through oil return pipe again，Shielding vestlet makes pumping fluid completely isolated with motor coil，Safe and reliable，Simultaneously because be directly back to main fuel tank by oil return pipe after the pumping fluid entrance auxiliary fuel tank that pump housing air vent is discharged，The i.e. pump housing will not be immersed in the pumping fluid of temperature rise，Therefore pump housing good heat dissipation，It is beneficial to ensure vacuum pump performance，And vertical structure also can save occupation of land space，It is prone to unit lay.
As preferably, rotor axis of electric is connected through support with the pump rotor axle integral type of the pump housing, and it is respectively equipped with upper bearing (metal) and lower bearing on the correspondence rotor axis of electric of shield electric machine two ends, the upper end of shielding vestlet connects on the lower surface of upper bearing (metal), and the lower port of support oil-feed path connects on the upper surface of upper bearing (metal).Rotor axis of electric and pump rotor axle use integral type to connect, and simplify structure, and intensity is high；The two ends of rotor axis of electric arrange upper and lower bearing, and make the upper and lower port of shielding vestlet be connected with corresponding upper and lower bearing, i.e. by upper and lower bearing to pump housing fuel feeding, to meet the lubricating requirement of bearing.
As preferably, the upper port of described shielding vestlet horizontally outward extends formation upper overturning, the lower port level of shielding vestlet extends inwardly to form radome drain pan, the rim seal of upper overturning is clamped between the motor case of support and shield electric machine, being connected to one end of fuel sucking pipe on radome drain pan, the other end of fuel sucking pipe is plugged under the oil level of main fuel tank.The upper port of shielding vestlet forms upper overturning, and lower port forms radome drain pan, it is ensured that rotor axis of electric and the complete ladle cover of spring bearing thereof, in shielding vestlet, are prevented effectively to wire coil leakage of oil, improve security reliability.
As preferably, being provided with fuel tank air vent at described auxiliary fuel tank end face, be provided with air inlet in the annular side of auxiliary fuel tank, the medial extremity of air inlet connects the prime pump chamber of the pump housing.Fuel tank air vent is positioned at top, when air inlet is positioned at auxiliary fuel tank side, meets and installs and use requirement.
As preferably, the rear class pump chamber of the pump housing corresponding with described support horizontally outward extends and forms aerofluxus boss, pump housing exhaust passage it is provided with in aerofluxus boss, the inner port of pump housing exhaust passage connects rear class pump chamber, the external port of pump housing exhaust passage connects on the upper surface of aerofluxus boss, and envelope is provided with exhaust valve plate in the external port of pump housing exhaust passage.External aerofluxus boss on the pump housing, the air vent of the pump housing connects on aerofluxus boss, and air vent corresponding above aerofluxus boss arranges exhaust valve plate and meets the exhaust requirements of vacuum pump, simple in construction.
As it is further preferred that the pump housing exhaust passage external port corresponding with described exhaust valve plate is provided with long-pending oil counterbore.Oil counterbore is for ensureing the sealing of exhaust valve plate, it is to avoid suck-back phenomenon occurs in vacuum pump discharges end.
Therefore, a kind of vertical rotating sheet vacuum pump with shield electric machine of the present utility model has an advantage that pump oil is completely isolated with motor coil, i.e. pump oil will not leak to motor, it is ensured that motor reliability service, improves security reliability；Auxiliary fuel tank will not gather too much pump oil, and therefore pump housing temperature rise is little, is beneficial to ensure vacuum pump performance, and pump housing exhaust end mist of oil is little simultaneously, makes working environment clean without greasy dirt；Will not accumulate in pump chamber after shutdown negative pressure produce from oil suction, therefore restarting load little, be conducive to reduce vacuum pump startup power, during startup, blade stress is improved, and extends the service life of blade.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of vertical rotating sheet vacuum pump with shield electric machine of this utility model.
Detailed description of the invention:
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment:
nullAs shown in Figure 1，A kind of vertical rotating sheet vacuum pump with shield electric machine of the present utility model，Including the support 1 of horizontal positioned and be fixed on the pump housing 3 above support 1 and auxiliary fuel tank 2，Auxiliary fuel tank 2 Open Side Down button the covers on pump housing 3 is outer and docks with support 1 upper surface，Shield electric machine 4 main fuel tank 7 that the fixed pump rotor driven in the pump housing 3 rotates in the lower section of support 1，Main fuel tank 7 opening upwards is buckled and is covered on outside shield electric machine 4 and dock with support 1 lower surface，The bottom surface of main fuel tank 7 keeps horizontal support，The rotor axis of electric 41 of shield electric machine 4 is connected through support 1 with pump rotor axle 31 integral type of the pump housing 3，It is filled with radome pipe 5 at rotor axis of electric 41 external series gap set，Upper bearing (metal) 9 and lower bearing 10 it is set with on the rotor axis of electric 41 that shield electric machine 4 two ends are corresponding，Rotor axis of electric 41 is rotatably supported on support 1 and main fuel tank 7 by upper bearing (metal) 9 and lower bearing 10 respectively，The upper port of shielding vestlet 5 horizontally outward extends formation upper overturning 51，The lower port level of shielding vestlet 5 extends inwardly to form radome drain pan 52，The rim seal of upper overturning 51 is clamped between motor case 42 end face of support 1 and shield electric machine 4，The upper port making shielding vestlet 5 connects on the lower surface of upper bearing (metal) 9，Auxiliary fuel tank 2 is connected with the pump chamber of the pump housing 3 again through support oil-feed path 6，The lower port of support oil-feed path 6 therein connects on the upper surface of upper bearing (metal) 9，At radome drain pan 52 ladle cover outside lower bearing 10，And in the middle part of the bottom surface of radome drain pan 52, it is connected to one end of fuel sucking pipe 11，The other end of fuel sucking pipe 11 is plugged under the oil level of main fuel tank 7.Auxiliary fuel tank 2 outside corresponding to the pump housing 3 is connected with main fuel tank 7 further through oil return pipe 8, and oil return pipe 8 is parallel to be positioned at outside shield electric machine 4 and connects between the end face of the bottom surface of auxiliary fuel tank 2 and main fuel tank 7；The outer level of rear class pump chamber 33 at the pump housing 3 corresponding with support 1 extends formation aerofluxus boss 14 to the left, the pump housing exhaust passage 15 of L-shaped is had in aerofluxus boss 14, the inner port of pump housing exhaust passage 15 connects rear class pump chamber 33, the external port of pump housing exhaust passage 15 upwards connects on the upper surface of aerofluxus boss 14, and the external port in pump housing exhaust passage 15 coaxially has long-pending oil counterbore 17, exhaust valve plate 16 is encapsulated on long-pending oil counterbore 17, with fuel tank air vent 12 on the right side of auxiliary fuel tank 2 end face relative with aerofluxus boss 14, with air inlet 13 in auxiliary fuel tank 2 annular side corresponding above aerofluxus boss 14, the medial extremity level of air inlet 13 extends internally and connects the prime pump chamber 32 of the pump housing 3.
Specific embodiment described herein is only explanation for example to design of the present utility model.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (6)
- null1. the vertical rotating sheet vacuum pump with shield electric machine，The pump housing (3) including support (1) and being located at support (1) top and auxiliary fuel tank (2)，Auxiliary fuel tank (2) covers at the pump housing (3) outward，It is characterized in that: be provided with the shield electric machine (4) and main fuel tank (7) that the pump rotor in the pump housing (3) can be driven to rotate in the lower section of described support (1)，Main fuel tank (7) covers at the lower end of shield electric machine (4) and keeps horizontal support，Rotor axis of electric (41) external series gap in shield electric machine (4) is arranged with shielding vestlet (5)，The upper end of shielding vestlet (5) connects auxiliary fuel tank (2) through the pump chamber of support oil-feed path (6) with the pump housing (3)，The lower end of shielding vestlet (5) extends connection under the oil level of main fuel tank (7)，And be connected with main fuel tank (7) further through oil return pipe (8) corresponding to the pump housing (3) auxiliary fuel tank (2) outward.
- A kind of vertical rotating sheet vacuum pump with shield electric machine the most according to claim 1, it is characterized in that: described rotor axis of electric (41) is connected through support (1) with pump rotor axle (31) integral type of the pump housing (3), and on shield electric machine (4) two ends correspondence rotor axis of electric (41), it is respectively equipped with upper bearing (metal) (9) and lower bearing (10), the upper end of shielding vestlet (5) connects on the lower surface of upper bearing (metal) (9), and the lower port of support oil-feed path (6) connects on the upper surface of upper bearing (metal) (9).
- A kind of vertical rotating sheet vacuum pump with shield electric machine the most according to claim 1 and 2, it is characterized in that: the upper port of described shielding vestlet (5) horizontally outward extends formation upper overturning (51), the lower port level of shielding vestlet (5) extends inwardly to form radome drain pan (52), the rim seal of upper overturning (51) is clamped between the motor case (42) of support (1) and shield electric machine (4), being connected to one end of fuel sucking pipe (11) on radome drain pan (52), the other end of fuel sucking pipe (11) is plugged under the oil level of main fuel tank (7).
- A kind of vertical rotating sheet vacuum pump with shield electric machine the most according to claim 1 and 2, it is characterized in that: be provided with fuel tank air vent (12) at described auxiliary fuel tank (2) end face, being provided with air inlet (13) in the annular side of auxiliary fuel tank (2), the medial extremity of air inlet (13) connects the prime pump chamber (32) of the pump housing (3).
- A kind of vertical rotating sheet vacuum pump with shield electric machine the most according to claim 1 and 2, it is characterized in that: horizontally outward extend on the rear class pump chamber (33) of the pump housing (3) corresponding with described support (1) and form aerofluxus boss (14), pump housing exhaust passage (15) it is provided with in aerofluxus boss (14), the inner port of pump housing exhaust passage (15) connects rear class pump chamber (33), the external port of pump housing exhaust passage (15) connects on the upper surface of aerofluxus boss (14), and envelope is provided with exhaust valve plate (16) in the external port of pump housing exhaust passage (15).
- A kind of vertical rotating sheet vacuum pump with shield electric machine the most according to claim 5, it is characterised in that: pump housing exhaust passage (15) external port corresponding with described exhaust valve plate (16) is provided with long-pending oil counterbore (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318808.9U CN205592134U (en) | 2016-04-15 | 2016-04-15 | Vertical sliding vane rotary vacuum pump with canned motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318808.9U CN205592134U (en) | 2016-04-15 | 2016-04-15 | Vertical sliding vane rotary vacuum pump with canned motor |
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| Publication Number | Publication Date |
|---|---|
| CN205592134U true CN205592134U (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620318808.9U Active CN205592134U (en) | 2016-04-15 | 2016-04-15 | Vertical sliding vane rotary vacuum pump with canned motor |
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| CN (1) | CN205592134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889071A (en) * | 2016-04-15 | 2016-08-24 | 浙江飞越机电有限公司 | Rotary vane type vacuum pump with canned motor |
| CN109931263A (en) * | 2019-03-08 | 2019-06-25 | 西安航天动力研究所 | A kind of dry type shielding vacuum pump |
-
2016
- 2016-04-15 CN CN201620318808.9U patent/CN205592134U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889071A (en) * | 2016-04-15 | 2016-08-24 | 浙江飞越机电有限公司 | Rotary vane type vacuum pump with canned motor |
| CN109931263A (en) * | 2019-03-08 | 2019-06-25 | 西安航天动力研究所 | A kind of dry type shielding vacuum pump |
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