CN206338186U - The rotor cooling device of cantilever rotor vavuum pump - Google Patents
The rotor cooling device of cantilever rotor vavuum pump Download PDFInfo
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- CN206338186U CN206338186U CN201621475830.0U CN201621475830U CN206338186U CN 206338186 U CN206338186 U CN 206338186U CN 201621475830 U CN201621475830 U CN 201621475830U CN 206338186 U CN206338186 U CN 206338186U
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- rotor
- cooling oil
- cooling
- axostylus axostyle
- delivery pipe
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Abstract
The utility model provides a kind of rotor cooling device of cantilever rotor vavuum pump, including power rotor, driven rotor and it is arranged on the cooling oil box on cantilever rotor vavuum pump top, power rotor and driven rotor are disposed in parallel in pump case and are conjugated engagement, and power rotor and driven rotor are the special-shaped axle construction of symmetrical S-shaped centered on cross section.The axostylus axostyle on axostylus axostyle and driven rotor being formed with power rotor and in driven rotor on the closing inner chamber of upper shed, power rotor is disposed as hollow axis pole；The first cooling oil delivery pipe and the second cooling oil delivery pipe are plugged with respectively in axostylus axostyle in axostylus axostyle on power rotor and on driven rotor, and the lower port of the lower port of the first cooling oil delivery pipe and the second cooling oil delivery pipe is plugged into the closing inner chamber of respective rotor respectively.The utility model efficiently controlled the temperature rise and thermal expansion of rotor, it is to avoid the friction produced between rotor and rotor and between rotor and the pump housing by thermal expansion or stuck phenomenon.
Description
Technical field
The utility model is related to a kind of rotor cooling device, and specifically a kind of rotor of cantilever rotor vavuum pump is cold
But device.
Background technology
At present, special-shaped rotator vacuum pump is extensive in medication chemistry sector application.The primary structure of special-shaped rotator vacuum pump is,
Set in pump case a pair and turn to opposite rotor, including a power rotor and a driven rotor, motor driving actively turns
Son rotation, while drive driven rotor to do synchronous high-speed reverse rotation in pump case by a pair of high-precision synchromesh gears, by
This produces the suction force of aspiration vacuum.Special-shaped rotator vacuum pump operationally press gas by a pair of intermeshing rotors
Contracting, the heat produced after compression causes temperature of rotor to raise, and temperature rise is higher, and the thermal expansion deformation caused is bigger, therefore in order to
Avoid between two rotors and phase mutual friction or stuck between rotor and pump case, just must be between two rotors and rotor and pump
Larger fit clearance is reserved between shell.But the big effect in turn influenceing to vacuumize again in gap.Existing cantilevered abnormity turns
The rotor of sub- vavuum pump is solid construction, it is impossible to which rotor is directly cooled down from inside.
In order to reduce the operating temperature rise of special-shaped rotator vacuum pump, some special-shaped rotator vacuum pumps are the axles in pump case and two ends
Hold and cooling water channel is set on case, cooled down with the axostylus axostyle to special-shaped rotor tip, but because this type of cooling is not direct
Act on special-shaped rotor portion, it is impossible to which effective temperature-reducing is carried out to special-shaped rotor, therefore its cooling effect is undesirable.
Utility model content
The purpose of this utility model is to provide a kind of rotor cooling device of cantilever rotor vavuum pump, existing different to solve
The problem of poor to rotor cooling effect present in shape rotator vacuum pump.
What the utility model was realized in：A kind of rotor cooling device of cantilever rotor vavuum pump, including actively turn
Son, driven rotor, the axostylus axostyle for being separately positioned on the power rotor top and the driven rotor top and it is arranged on cantilever
The cooling oil box on formula rotator vacuum pump top, the power rotor and the driven rotor are uprightly arranged on the pump case side by side
In pump chamber and conjugation engagement, the power rotor and the driven rotor are the special-shaped axis of symmetrical S-shaped centered on cross section
Structure；It is formed with the power rotor neutralizes the driven rotor on the closing inner chamber of upper shed, the power rotor
Axostylus axostyle on axostylus axostyle and the driven rotor is disposed as inner chamber and the institute of the axostylus axostyle on hollow axis pole, the power rotor
State in the inner chamber of the axostylus axostyle and the closing of the driven rotor on the closing inner chamber connection of power rotor, the driven rotor
Chamber is connected；
The first cooling oil delivery pipe is plugged with axostylus axostyle on the power rotor, the first cooling oil delivery pipe
Lower port is plugged into the closing inner chamber of the power rotor, and the upper port of the first cooling oil delivery pipe extends to corresponding
The outside of the axostylus axostyle, being provided between the outside wall surface of the first cooling oil delivery pipe and the internal face of the axostylus axostyle is used for
The gap flowed through for cooling oil；The second cooling oil delivery pipe, second cooling are plugged with the axostylus axostyle of the driven rotor
The lower end of oily delivery pipe is plugged into the closing inner chamber of the driven rotor, the upper port extension of the second cooling oil delivery pipe
To the outside of the corresponding axostylus axostyle, set between the outside wall surface of the second cooling oil delivery pipe and the internal face of the axostylus axostyle
It is equipped with the gap for being flowed through for cooling oil.
It is provided with and is conveyed respectively with the first cooling oil delivery pipe and second cooling oil on the top of cooling oil box
The cooling-oil inlet that pipe is correspondingly arranged, the upper port of the first cooling oil delivery pipe and the second cooling oil delivery pipe it is upper
Port, which is worn, to be connected on the cooling oil box and is fixedly connected on the cooling oil box on corresponding cooling-oil inlet.
Gear oil is coaxially arranged with the top of the axostylus axostyle of the power rotor and the top of the axostylus axostyle of the driven rotor
Device, the oil guard includes the installation sleeve being co-axially located on the outside of corresponding axostylus axostyle and is arranged in the middle part of installation sleeve
Oil scraper ring in outside wall surface, lip-type packing is provided between the outside wall surface and cooling oil box of installation sleeve.
The top of the cooling oil box is provided with the cooling oil chamber of closing, and the bottom of the cooling oil box is provided with shed
Permeability chamber, the cooling oil box side wall upper part be provided with it is the first of the connection of the closing inner chamber of cooling oil box internal upper part cold
But oil export, the second cooling oil connected with permeability chamber described in cooling oil box bottom is provided with the cooling oil box sidewall bottom
Outlet.
Cantilever rotor vavuum pump of the present utility model is a kind of new special-shaped rotator vacuum pump of applicant's design, its
Structure is that power rotor and driven rotor and housing portion are arranged on to the bottom of the pump housing, by the branch of power rotor and driven rotor
Support and running part are arranged on the top of pump case, make power rotor and driven rotor in the lower cantalever structure setting of suspension type in pump
In vivo, to form the lower cantalever structure of the single-ended support of rotor in vavuum pump.
The utility model is formed with the axle on the closing inner chamber of upper shed, power rotor in power rotor and driven rotor
Axostylus axostyle on bar and driven rotor is hollow axis pole, and the cooling oil of outside can so entered from the cooling-oil inlet of cooling oil box
Enter into the inner chamber of corresponding special-shaped rotor, the closing inner chamber bottom of rotor, then edge are directly entered by cooling oil delivery pipe
Closing inner chamber flows up to enter cooling oil box upwards, along the gap between cooling petroleum pipeline and rotor inner wall face, then from cold
But oil export is discharged, and cooling oil has taken away most of heat when flowing, and has efficiently controlled the temperature rise and thermal expansion of rotor, it is to avoid
The friction produced by thermal expansion between rotor and rotor and between rotor and the pump housing or stuck phenomenon, improve abnormity and turn
The stability and reliability of sub- vavuum pump operating.Simultaneously as control temperature rise and the thermal expansion deformation of rotor, thus rotor with
Reserved larger gap is no longer needed between rotor and between rotor and the pump housing, and reduces gap with regard to gas backflow can be reduced
Amount, improves the speed of exhaust and vacuum of special-shaped rotator vacuum pump.
Brief description of the drawings
Fig. 1 is that the utility model applies work structuring schematic diagram in cantilever rotor vavuum pump.
Fig. 2 is the partial enlarged drawing at I in the utility model Fig. 1.
Fig. 3 is Fig. 1 of the present utility model A-A direction views.
In figure：1st, pump case；2nd, lower bearing housing；3rd, top bearing housing；4th, cooling oil box；4-1, cooling-oil inlet；4-2, first
Cooling-oil outlet；4-3, the second cooling-oil outlet；5th, lower bearing；6th, upper bearing (metal)；7th, power rotor；8th, driven rotor；9th, axostylus axostyle；
10th, synchromesh gear；11st, the first cooling oil delivery pipe；12nd, the second cooling oil delivery pipe；13-1, installation sleeve；13-2, gear oil
Ring；14th, lip-type packing；15th, O-ring seals.
Embodiment
As shown in Fig. 1 ~ Fig. 3, the utility model is applied to the special-shaped rotator vacuum pump of cantilevered that applicant designs, the cantilever
Formula abnormity rotator vacuum pump is that the upper port of pump case 1 is provided with lower bearing housing 2, and the top of lower bearing housing 2 is provided with axle
Case 3 is held, the top of top bearing housing 3 is provided with cooling oil box 4.Two groups of juxtaposed lower bearings 5 are provided with lower bearing housing 2,
Two groups of juxtaposed upper bearing (metal)s 6 are provided with top bearing housing 3.Lower bearing housing 2 and pairing above and below the port of top bearing housing 3, are formed
Accommodate the cavity of the upper shaft 9 of power rotor 7 and the upper shaft 9 of driven rotor 8.On the top of power rotor 7 and driven rotor 8
Top be coaxially arranged with axostylus axostyle 9, i.e., axostylus axostyle 9 is coaxially arranged with the top of power rotor 7, on the top of driven rotor 8
It is coaxially arranged with axostylus axostyle 9.
Axostylus axostyle 9 on power rotor 7 from the upper port of pump case 1 penetrate successively upwards lower bearing housing 2 and top bearing housing 3 and by
The upper port that one group of lower bearing 5 and one group of upper bearing (metal) are supported axostylus axostyle 9 from the pump case 1 on positioning, driven rotor 8 is upward successively
Penetrate lower bearing housing 2 and top bearing housing 3 and positioning is supported by one group of lower bearing 5 and one group of upper bearing (metal) 6.The He of power rotor 7
Driven rotor 8 is uprightly arranged in the pump chamber of pump case 1 and kept the state that conjugation is engaged side by side.Power rotor 7 and driven rotor 8
It is on the special-shaped axle construction of symmetrical S-shaped centered on cross section, power rotor 7 and driven rotor 8 and is provided with two along week
To the hook-type claw of opposed, two hook-type claws on power rotor 7 are on Central Symmetry, two on driven rotor 8
Hook-type claw is on Central Symmetry.The highest flex point and the distance between minimum flex point of the outer edge of the cross section of power rotor 7 are small
In the distance between highest flex point and minimum flex point of driven rotor 8, power rotor 7 is contactless conjugation with driven rotor 8
Engagement, the fit clearance between power rotor 7 and driven rotor 8 is less than 0.4mm.The inwall corresponding with pump case 1 of power rotor 7
Gap between the tip internal face corresponding with pump case 1 of the hook-type claw in gap and driven rotor 8 between face is less than
0.4mm.The inner-cavity structure of pump case 1 is the cavity body structure that two cylinder chambers partly overlap.
Synchromesh gear 10, two axostylus axostyles 9 are separately installed with the axostylus axostyle 9 of power rotor 7 and the axostylus axostyle 9 of driven rotor 8
On synchromesh gear 10 be intermeshed, to realize that synchronous backward rotates, to extrude the gas in pump case 1, produce gas suction and make
With so as to carry out vacuumizing operation.
The knot of the cylindric closing inner chamber, i.e. closing inner chamber of upper shed is formed with power rotor 7 and driven rotor 8
Structure uses blind hole structure.The axostylus axostyle 9 on axostylus axostyle 9 and driven rotor 8 on power rotor 7 is disposed as hollow axis pole 9, axostylus axostyle 9
Inner chamber be the through hole that is coaxially disposed with axostylus axostyle 9, the internal diameter of the inner chamber of axostylus axostyle 9 is less than the internal diameter of rotor inner sealing inner chamber.Actively turn
The inner chamber of axostylus axostyle 9 on son 7 is connected with the closing inner chamber of power rotor 7, the inner chamber of the axostylus axostyle 9 on driven rotor 8 and driven turn
The closing inner chamber connection of son 8.The first cooling oil delivery pipe 11 is plugged with axostylus axostyle 9 on power rotor 7, in driven rotor 8
Axostylus axostyle 9 in be plugged with the second cooling oil delivery pipe 12.The lower port of first cooling oil delivery pipe 11 is plugged into power rotor 7
In closing inner chamber, the upper port of the first cooling oil delivery pipe 11 extends to the outside of corresponding axostylus axostyle 9, the second cooling oil delivery pipe
12 lower end is plugged into the closing inner chamber of driven rotor 8, and the upper port of the second cooling oil delivery pipe 12 extends to corresponding axle
The outside of bar 9.
In the second cooling oil delivery pipe 12 between the outside wall surface of the first cooling oil delivery pipe 11 and the internal face of axostylus axostyle 9
The gap for being flowed through for cooling oil is provided between the internal face of outside wall surface and axostylus axostyle 9.
Be provided with the top of cooling oil box 4 respectively with 12 pairs of the first cooling oil delivery pipe 11 and the second cooling oil delivery pipe
The upper end of axostylus axostyle 9 on the cooling-oil inlet 4-1 that should be set, power rotor 7 and the upper part of the axostylus axostyle 9 of driven rotor 8
Do not extend in cooling oil box 4, the upper port point of the upper port of the first cooling oil delivery pipe 11 and the second cooling oil delivery pipe 12
It is not fixedly connected at the corresponding cooling-oil inlet 4-1 in the top of cooling oil box 4.In the present embodiment, the top of cooling oil box 4 is set
The cooling oil chamber of closing is equipped with, its underpart is provided with the permeability chamber of under shed.At the cooling-oil inlet 4-1 of cooling oil box 4
It is bolted and suction flange is installed, the outside wall surface of suction flange is tightly connected by sealing ring with cooling oil box 4, first
The outside wall surface of the upper end of cooling oil delivery pipe 11 and the outside wall surface of the upper end of the second cooling oil delivery pipe 12 with corresponding suction flange
Internal face laminating set and the corresponding cooling-oil inlet 4-1 of cooling oil box 4 be fixedly mounted on by corresponding suction flange
Place, the outside wall surface of the upper end of the first cooling oil delivery pipe 11 and the outside wall surface of the upper end of the second cooling oil delivery pipe 12 pass through welding
Mode is fixedly connected with corresponding suction flange.The top of the top surface of first cooling oil delivery pipe 11 and the second cooling oil delivery pipe 12
Face is below the top surface of cooling oil box 4.Top on the top of the axostylus axostyle 9 of power rotor 7 and the axostylus axostyle 9 of driven rotor 8 is same
Axle is provided with oil guard, and oil guard includes being co-axially located at the installation sleeve 13-1 in the corresponding outside of axostylus axostyle 9 and is arranged on
Oil scraper ring 13-2 in outside wall surface in the middle part of installation sleeve 13-1, oil scraper ring 13-2 are the cylinder-like structure that Open Side Down.Gear oil
Ring 13-2 and installation sleeve 13-1 is integrally formed setting, is provided between installation sleeve 13-1 outside wall surface and cooling oil box 4
Lip-type packing 14, O-ring seals are provided between installation sleeve 13-1 internal face and the outside wall surface of corresponding axostylus axostyle 9
15.The side wall upper part of cooling oil box 4 is provided with the first cooling oil for connecting with the closing inner chamber bottom of the internal upper part of cooling oil box 4 to go out
Mouth 4-2, the second cooling-oil outlet connected with the bottom permeability bottom of chamber portion of cooling oil box 4 is provided with the sidewall bottom of cooling oil box 4
4-3, the first cooling-oil outlet 4-2 and the second cooling-oil outlet 4-3 are set for homonymy.Cooling of the cooling oil along cooling oil box 4
Oil inlet 4-1 enters, and is directly entered the bottom of respective rotor by cooling oil delivery pipe, then along the closing inner chamber of rotor bottom
And the gap between the inwall and cooling oil delivery pipe outside wall surface of hollow axis pole 9 is flowed up, into the closing of cooling oil box 4
Inner chamber, from the first cooling-oil outlet 4-2 discharges, the cooling oil oozed out on a small quantity along oil scraper ring 13-2 is from the second cooling-oil outlet 4-3
Discharge, it is ensured that cooling oil may not flow into top bearing housing 3.By controlling the temperature and flow of cooling oil to control the temperature rise of rotor,
So as to thoroughly solve the thermal expansion problem of rotor, it is not necessary to reserve the fit clearance between larger rotor because of rotor thermal expansion again,
Effectively increase the speed of exhaust and vacuum of rotator vacuum pump.
Claims (4)
1. a kind of rotor cooling device of cantilever rotor vavuum pump, it is characterized in that, including power rotor, driven rotor, difference
It is arranged on the axostylus axostyle on the power rotor top and the driven rotor top and is arranged on cantilever rotor vavuum pump top
Cooling oil box, the power rotor and the driven rotor are uprightly arranged in the pump chamber of pump case and are conjugated engagement, institute side by side
State power rotor and the driven rotor is the special-shaped axle construction of symmetrical S-shaped centered on cross section；In the power rotor
Neutralize on the axostylus axostyle and the driven rotor on the closing inner chamber that upper shed is formed with the driven rotor, the power rotor
Axostylus axostyle be disposed as the inner chamber of the axostylus axostyle on hollow axis pole, the power rotor and the closing inner chamber of the power rotor
The inner chamber of the axostylus axostyle on connection, the driven rotor is connected with the closing inner chamber of the driven rotor；
The first cooling oil delivery pipe, the lower end of the first cooling oil delivery pipe are plugged with axostylus axostyle on the power rotor
Mouthful it is plugged into the closing inner chamber of the power rotor, the upper port of the first cooling oil delivery pipe extends to corresponding described
The outside of axostylus axostyle, is provided with for cooling between the outside wall surface of the first cooling oil delivery pipe and the internal face of the axostylus axostyle
But the gap that oil flows through；The second cooling oil delivery pipe is plugged with the axostylus axostyle of the driven rotor, second cooling oil is defeated
The lower end of pipe is sent to be plugged into the closing inner chamber of the driven rotor, the upper port of the second cooling oil delivery pipe is extended to pair
The outside for the axostylus axostyle answered, is provided between the outside wall surface of the second cooling oil delivery pipe and the internal face of the axostylus axostyle
For the gap flowed through for cooling oil.
2. the rotor cooling device of cantilever rotor vavuum pump according to claim 1, it is characterized in that, in cooling oil box
Top is provided with the cooling oil being correspondingly arranged respectively with the first cooling oil delivery pipe and the second cooling oil delivery pipe and entered
Mouthful, the upper port of the upper port of the first cooling oil delivery pipe and the second cooling oil delivery pipe, which is worn, is connected on the cooling
On fuel tank and it is fixedly connected on the cooling oil box on corresponding cooling-oil inlet.
3. the rotor cooling device of cantilever rotor vavuum pump according to claim 1, it is characterized in that, turn in the active
The top of the axostylus axostyle of son and the top of the axostylus axostyle of the driven rotor are coaxially arranged with oil guard, and the oil guard includes
The installation sleeve on the outside of corresponding axostylus axostyle and the oil scraper ring being arranged in the outside wall surface in the middle part of installation sleeve are co-axially located at, in peace
Lip-type packing is provided between sleeved outside wall surface and cooling oil box.
4. the rotor cooling device of cantilever rotor vavuum pump according to claim 1, it is characterized in that, the cooling oil box
Top be provided with the cooling oil chamber of closing, the bottom of the cooling oil box is provided with the permeability chamber of under shed, in the cooling
Fuel tank sidewall top is provided with the first cooling-oil outlet with the connection of the closing inner chamber of cooling oil box internal upper part, in the cooling
Fuel tank sidewall bottom is provided with the second cooling-oil outlet connected with permeability chamber described in cooling oil box bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621475830.0U CN206338186U (en) | 2016-12-30 | 2016-12-30 | The rotor cooling device of cantilever rotor vavuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621475830.0U CN206338186U (en) | 2016-12-30 | 2016-12-30 | The rotor cooling device of cantilever rotor vavuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206338186U true CN206338186U (en) | 2017-07-18 |
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ID=59303385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621475830.0U Active CN206338186U (en) | 2016-12-30 | 2016-12-30 | The rotor cooling device of cantilever rotor vavuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206338186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450921A (en) * | 2022-08-08 | 2022-12-09 | 南京真空泵厂有限公司 | Follow-up cooling system and cooling method for claw-type vacuum pump |
-
2016
- 2016-12-30 CN CN201621475830.0U patent/CN206338186U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450921A (en) * | 2022-08-08 | 2022-12-09 | 南京真空泵厂有限公司 | Follow-up cooling system and cooling method for claw-type vacuum pump |
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