CN203516109U - Roots pump with rotor cooling structure - Google Patents
Roots pump with rotor cooling structure Download PDFInfo
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- CN203516109U CN203516109U CN201320617574.4U CN201320617574U CN203516109U CN 203516109 U CN203516109 U CN 203516109U CN 201320617574 U CN201320617574 U CN 201320617574U CN 203516109 U CN203516109 U CN 203516109U
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Abstract
The utility model discloses a roots pump with a rotor cooling structure, aiming to solve the defects that the cooling effect to a rotary shaft by an existing roots pump is poor, and the roots pump is short in service life. The roots pump with the rotor cooling structure, which is provided by the utility model, comprises a pump body, the front end and the rear end of the pump body are respectively connected with a front side cover and a rear side cover; the front side cover is connected with a front cover; the rear side cover is connected with a rear cover; a rotary shaft is connected between the front cover and the rear cover, and is connected with a rotor; the front cover is internally provided with a front cover cavity; the front side cover is internally provided with a front cooling cavity; the rear cover is internally provided with a rear cover cavity; the rear side cover is internally provided with a rear cooling cavity; the front cover cavity and the front cooling cavity are communicated; the rear cover cavity and the rear cooling cavity are communicated; the rotor is of a curve-8-shaped structure; the rotor is internally provided with two sealed rotor cooling cavities; two ends of the rotor cooling cavities are respectively communicated with the front cooling cavity and the rear cooling cavity; the rotor close th the liquid inlet is sleeved with a centrifugal impellor for driving a cooling liquid; the centrifugal impellor is arranged in the rear cooling cavity; the rear cover is provided with a liquid intake channel; the front cover is provided with a liquid discharge pipeline.
Description
Technical field
The utility model relates to a kind of vacuum pump, and more particularly, it relates to a kind of Roots pump with rotor cooling structure of good cooling results.
Background technique
Roots pump uses field wide as a kind of oil-sealed rotary pump, the height in working life of Roots pump, and except being subject to Environmental Conditions affects, the quality and performance of itself is also crucial.Roots pump has a feature can not require pressure differential range to work outward at it exactly, because pressure reduction is higher, Roots pump acting is more, and the heat of generation is more, and the component of pump can expanded by heating, and the cooperation of each parts will be because of unreasonable and damage.Therefore bear the important indicator that the ability of pressure reduction height is exactly reaction Roots pump quality.Under this background, improve the heat dissipation potential of pump, just become key.Roots pump heating in the process of using is mainly derived from rotor acting, and a lot of cooling meanss of using at present are all being carried out coolingly to rotor at peritrochanteric, and cooling effect is not desirable especially.
Chinese patent notification number CN202937455U, discloses a kind of Roots pump water-cooled aluminium lid, comprises an aluminium lid main body, is embedded with a cooling tube in aluminium lid main body, and cooling tube is provided with a liquid entering hole, a liquid outlet, and liquid entering hole and liquid outlet are arranged on aluminium lid main body outside.In Roots pump aluminium lid, set up a cooling system, cooling liquid flows into from liquid entering hole, from liquid outlet, flows out, and in this process, Roots pump is absorbed heat cooling.But the Roots pump of this structure is poor to the cooling effect of rotor, the working life of Roots pump is low.
Model utility content
It is poor to the cooling effect of rotor that the utility model has overcome existing Roots pump, and the short deficiency in working life of Roots pump, provides a kind of Roots pump with rotor cooling structure, and its good cooling results to roots pump rotor has extended working life of Roots pump.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of Roots pump with rotor cooling structure, comprise the pump housing, the rear and front end of the pump housing is connected with respectively front side cap and rear side cover, on front side cap, connect protecgulum, in rear side cover, connect bonnet, between protecgulum and bonnet, be connected with rotating shaft, in rotating shaft, be connected with rotor, rotor is arranged in the pump housing, in protecgulum, be provided with protecgulum chamber, in front side cap, be provided with front cooling chamber, in bonnet, be provided with bonnet chamber, in rear side cover, be provided with rear cooling chamber, protecgulum chamber and front cooling chamber are communicated with, bonnet chamber and rear cooling chamber are communicated with, rotor is figure-8 structure, in rotor, be provided with the rotor cooling chamber of two sealings, the two ends of rotor cooling chamber are communicated with front cooling chamber and rear cooling chamber respectively, on rotor, near inlet opening position, be socketed with for driving the centrifugal impeller of cooling liquid, centrifugal impeller is arranged in rear cooling chamber, bonnet is provided with the input duct being communicated with bonnet chamber, protecgulum is provided with the fluid pipeline being communicated with protecgulum chamber.During work, thereby driven by motor rotating shaft rotation drives centrifugal impeller to rotate, cooling liquid is sent in bonnet chamber by the input duct on bonnet, cooling liquid in bonnet chamber is pumped in rear cooling chamber, and be transported in rotor cooling chamber, the cooling liquid in rotor cooling chamber is discharged from the fluid pipeline of protecgulum behind cooling chamber and protecgulum chamber before rotor is carried out flowing through successively after cooling.Cooling liquid is directly carried out cooling to the internal rotor of vacuum pump, cooling liquid and rotor area of contact are large, and good cooling results has extended working life of Roots pump greatly.
As preferably, on two symmetrically arranged rotor cooling chambers inwall away from axis, be equipped with some spiral guiding grooves.Rotor can produce to the cooling liquid in rotor cooling chamber the effect of centrifugal force in the process of rotating, cooling liquid flows from the rear end forward end of rotor cooling chamber, cooling liquid in guiding groove is in the used time of doing that is subject to centrifugal force, the spiral sidewall of guiding groove has a reaction force to cooling liquid, thereby a component of reaction force makes cooling liquid flow along Hand of spiral towards the Hand of spiral of guiding groove, thereby drive the cooling liquid in whole rotor cooling chamber to rotate while flowing, make cooling liquid obtain the effect stirring, heat absorption evenly, accelerate the flow velocity of cooling liquid in rotor cooling chamber, increase cooling effect.
As preferably, two rotor cooling chambers are the tubular structure of frustoconic shape, and the aperture of rotor cooling chamber is from increasing gradually to the other end near rotor cavity inlet opening end.This structure makes the pressure in rotor cooling chamber reduce gradually from great Duan Xiang aperture, aperture small end, is conducive to accelerate the flow velocity of cooling liquid in rotor cooling chamber, thereby increases cooling effect.
As preferably, the outer wall of rotating shaft and rear side cover link position is provided with the inlet opening being communicated with rear cooling chamber, the outer wall of rotating shaft and front side cap link position is provided with the liquid outlet opening being communicated with front cooling chamber, in rotating shaft, be provided with the rear liquid-through hole being communicated with inlet opening and the front liquid-through hole being communicated with liquid outlet opening, between front liquid-through hole and rotor cooling chamber, be connected with for being communicated with the rotor cavity liquid outlet opening of front liquid-through hole and rotor cooling chamber, between rear liquid-through hole and rotor cooling chamber, be connected with for being communicated with the rotor cavity inlet opening of rear liquid-through hole and rotor cooling chamber, rotor cavity inlet opening and rotor cavity liquid outlet opening are separately positioned on the position, rear and front end of rotor cooling chamber.In the middle of rotor, be axially arranged with attachment hole, rotating shaft adaptation is connected in attachment hole, rotor cavity inlet opening and rotor cavity liquid outlet opening connect the hole wall of attachment hole, rotor cavity inlet opening is obliquely installed towards rotor front end, rotor cavity liquid outlet opening is obliquely installed towards rotor rear end, the position of intersecting point of rotor cavity inlet opening axis elongation line and rotor cavity liquid outlet opening axis elongation line is at rotor cooling chamber on the inwall away from rotating shaft, and the aperture of rotor cavity inlet opening is greater than the aperture of rotor cavity liquid outlet opening.
The rear liquid-through hole of cooling liquid from rotating shaft flows into rotor cooling chamber and the front liquid-through hole from rotating shaft flows out, and not only facilitated the circulation of cooling liquid, and the direct countershaft of cooling liquid carries out coolingly, increases the cooling effect of rotating shaft.Rotor cavity inlet opening and rotor cavity liquid outlet opening are all obliquely installed, make cooling liquid flow into and flow out more smooth and easy from rotor cavity liquid outlet opening from rotor cavity inlet opening, when cooling liquid enters, there is a thrust forward, can accelerate the flow velocity of cooling liquid.And the prolongation of the axis of rotor cavity inlet opening and rotor cavity liquid outlet opening intersects on the inwall of rotor cooling chamber, cooling liquid flows into rear portion cooling liquid from rotor cavity inlet opening and towards the inwall of rotor cooling chamber, flows straight, recoil effect through inwall is flowed out towards rotor cavity liquid outlet opening straight, therefore this position of rotor cavity inlet opening and rotor cavity liquid outlet opening arranges the flow velocity that can effectively increase cooling liquid, allow new cooling liquid Rapid Flow to rotor cooling chamber, and the cooling liquid that rotor carries out cooling mistake is discharged to rotor cooling chamber fast, thereby increase cooling effect.
Another kind of scheme, in the middle of rotor, be axially arranged with attachment hole, rotating shaft adaptation is connected in attachment hole, on the inwall of attachment hole near both ends open, be respectively equipped with front intercommunicating pore and rear intercommunicating pore, front intercommunicating pore and rear intercommunicating pore are all communicated with rotor cooling chamber, on rotating shaft outer wall, near two ends of rotor position, be respectively equipped with front connectivity slot and rear connectivity slot, cooling chamber and front intercommunicating pore before front connectivity slot is communicated with, cooling chamber and rear intercommunicating pore after rear connectivity slot is communicated with.The connection of cooling chamber and rotor cooling chamber and rear cooling chamber and rotor cooling chamber before realizing by connectivity slot before arranging in rotating shaft and rear connectivity slot, thus make the processing of rotating shaft convenient, cut down finished cost.
As preferably, the link position of rotating shaft and front side cap and rear side cover is equipped with piston ring packing circle, and piston ring packing snare is connected in rotating shaft.Piston ring packing circle good sealing effect, makes the connection bit of rotating shaft and front side cap and rear side cover be equipped with good sealing.
As preferably, in front side cap and rear side cover, be equipped with cooling water cavity, cooling water cavity is oval shape structure and one end is communicated with water intake, and the other end is communicated with water outlet.At front side cap and rear side cover inside, cooling water cavity is set, directly front side cap and rear side cover is carried out coolingly, the heat of two ends of rotor is well absorbed, increase cooling effect.
As preferably, the link position of the link position of protecgulum and front side cap and bonnet and rear side cover is equipped with gasket seal.Gasket seal increases the sealing that protecgulum and front side cap and bonnet are connected with rear side cover.
As preferably, on front side cap front-end face, be connected with front-end bearing pedestal, on rear side cover ear end face, be connected with rear bearing block, in front-end bearing pedestal and rear bearing block, be all connected with bearing, bearing is closely socketed in rotating shaft, is sealedly connected with fore bearing gland on front-end bearing pedestal, and fore bearing gland is pressed on bearing face and is connected fastening with front side cap, on rear bearing block, be sealedly connected with rear bearing gland, rear bearing gland is pressed on bearing face and is connected fastening with rear side cover.The two ends of rotor are fixedly connected in front side cap and rear side cover by bearing, connect steadily reliable.
Compared with prior art, the beneficial effects of the utility model are: (1) cooling liquid directly from internal flow cross rotor is carried out cooling, good cooling results; (2) improved significantly the poor ability of resistance to compression of Roots pump, even in the little situation of pressure reduction, the operating temperature of Roots pump is also than low tens degree of general Roots pump, the working life of greatly having improved Roots pump; (3) flow velocity of cooling liquid in rotor cooling chamber is very fast, has increased the cooling effect to rotor; (4) cooling liquid is rotated while flowing in rotor cooling chamber, makes cooling liquid obtain the effect stirring, and heat absorption is even, to rotor good cooling results.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of rotor of the present utility model;
Fig. 3 is a kind of structural representation of the utility model embodiment 2;
In figure: 1, the pump housing, 2, front side cap, 3, rear side cover, 4, protecgulum, 5, bonnet, 6, rotating shaft, 7, ante-chamber lid, 8, front cooling chamber, 9, back cavity lid, 10, rear cooling chamber, 11, inlet opening, 12, liquid outlet opening, 13, liquid-through hole, 14, centrifugal impeller, 15, cooling water cavity, 16, gasket seal, 17, front-end bearing pedestal, 18, rear bearing block, 19, fore bearing gland, 20, rear bearing gland, 21, bearing, 22, rotor, 23, rear liquid-through hole, 24, rotor cavity inlet opening, 25, rotor cavity liquid outlet opening, 26, rotor cooling chamber, 27, guiding groove, 28, attachment hole, 29, front intercommunicating pore, 30, rear intercommunicating pore, 31, front connectivity slot, 32, rear connectivity slot, 33, piston ring packing circle.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described specifically:
Embodiment 1: a kind of Roots pump with rotor cooling structure (referring to accompanying drawing 1), comprise the pump housing 1, the rear and front end of the pump housing is connected with respectively front side cap 2 and rear side cover 3, on front side cap, connect protecgulum 4, in rear side cover, connect bonnet 5, the link position of the link position of protecgulum and front side cap and bonnet and rear side cover is equipped with gasket seal 16, is connected with rotating shaft 6 between protecgulum and bonnet, in rotating shaft, be connected with rotor 22, rotor is arranged in the pump housing.In protecgulum, be provided with protecgulum chamber 7, in front side cap, be provided with front cooling chamber 8, in bonnet, be provided with bonnet chamber 9, in rear side cover, be provided with rear cooling chamber 10.On front side cap front-end face, be connected with front-end bearing pedestal 17, on rear side cover ear end face, be connected with rear bearing block 18, in front-end bearing pedestal and rear bearing block, be all connected with bearing 21, bearing is closely socketed in rotating shaft, on front-end bearing pedestal, be sealedly connected with fore bearing gland 19, fore bearing gland is pressed on bearing face and is connected fasteningly with front side cap, is sealedly connected with rear bearing gland 20 on rear bearing block, and rear bearing gland is pressed on bearing face and is connected fastening with rear side cover.Hood-shaped protecgulum connects and covers on and on front side cap, forms protecgulum chamber, hood-shaped front and rear covers connects and covers on and in rear side cover, forms bonnet chamber, front-end bearing pedestal and rotating shaft are connected to the middle lead to the hole site of front side cap and form front cooling chamber, and the lead to the hole site that rear bearing block and rotating shaft are connected in the middle of rear side cover forms rear cooling chamber.Protecgulum chamber and front cooling chamber are communicated with, and bonnet chamber and rear cooling chamber are communicated with.On front-end bearing pedestal and the faying surface position of front side cap is provided with for being communicated with the groove of ante-chamber lid and front cooling chamber, and on rear bearing block and the faying surface position of rear side cover is provided with for being communicated with the groove of back cavity lid and rear cooling chamber.Rotor is figure-8 structure (referring to accompanying drawing 2), in rotor, be provided with the rotor cooling chamber 26 of two sealings, two rotor cooling chambers are symmetrical arranged, connection is sealed by plug in the rear and front end of rotor cooling chamber, the two ends of rotor cooling chamber are communicated with front cooling chamber and rear cooling chamber respectively, on rotor, near inlet opening position, be socketed with for driving the centrifugal impeller 14 of cooling liquid, centrifugal impeller is arranged in rear cooling chamber, bonnet is provided with the input duct being communicated with bonnet chamber, and protecgulum is provided with the fluid pipeline being communicated with protecgulum chamber.On two symmetrically arranged rotor cooling chambers inwall away from axis, be equipped with 27, five guiding groove Hand of spiral of five spiral guiding grooves identical, the helix angle of helical guide slot is 3-10 degree, and in the present embodiment, guiding groove helix angle is 5 degree.Article five, guiding groove is in starting point uniform setting of semicircle away from axis along rotor cooling chamber of rotor rear end.Two rotor cooling chambers are the tubular structure of frustoconic shape, and the aperture of rotor cooling chamber is from increasing gradually to the other end near rotor cavity inlet opening end.The outer wall of rotating shaft and rear side cover link position is provided with the inlet opening 11 being communicated with rear cooling chamber, the outer wall of rotating shaft and front side cap link position is provided with 12, six inlet openings of liquid outlet opening and six liquid outlet openings that are communicated with front cooling chamber and all along one of rotating shaft, encloses uniform setting.In rotating shaft, be provided with the rear liquid-through hole 23 being communicated with inlet opening and the front liquid-through hole 13 being communicated with liquid outlet opening, between front liquid-through hole and rotor cooling chamber, be connected with for being communicated with the rotor cavity liquid outlet opening 25 of front liquid-through hole and rotor cooling chamber, between rear liquid-through hole and rotor cooling chamber, be connected with for being communicated with the rotor cavity inlet opening 24 of rear liquid-through hole and rotor cooling chamber, three rotor cavity liquid outlet openings and three rotor cavity inlet openings are communicated with a rotor cavity, another three rotor cavity liquid outlet openings and three rotor cavity inlet openings are communicated with another rotor cavity, six rotor cavity liquid outlet openings and six rotor cavity inlet openings arrange and are symmetrical arranged one by one along a circle of rotating shaft respectively, rotor cavity inlet opening and rotor cavity liquid outlet opening are separately positioned on the position, rear and front end of rotor cooling chamber.In the middle of rotor, be axially arranged with attachment hole 28, rotating shaft adaptation is connected in attachment hole, rotor cavity inlet opening and rotor cavity liquid outlet opening connect the hole wall of attachment hole, rotor cavity inlet opening is obliquely installed towards rotor front end, rotor cavity liquid outlet opening is obliquely installed towards rotor rear end, the position of intersecting point of rotor cavity inlet opening axis elongation line and rotor cavity liquid outlet opening axis elongation line is at rotor cooling chamber on the inwall away from rotating shaft, the aperture of rotor cavity inlet opening is greater than the aperture of rotor cavity liquid outlet opening, guarantees to be full of cooling liquid in rotor cooling chamber.The link position of rotating shaft and front side cap and rear side cover is equipped with piston ring packing circle 33, and piston ring packing snare is connected in rotating shaft.In front side cap and rear side cover, be equipped with cooling water cavity 15, cooling water cavity is oval shape structure and one end is communicated with water intake, and the other end is communicated with water outlet.
During work, using cooling water as cooling liquid, thereby driven by motor rotating shaft rotation drives centrifugal impeller to rotate, cooling water is sent in bonnet chamber by the input duct on bonnet, cooling water in bonnet chamber is pumped in rear cooling chamber, successively by inlet opening, rear liquid-through hole and rotor cavity inlet opening and be transported in rotor cooling chamber, cooling water in rotor cooling chamber flows in front cooling chamber rotor carry out flowing through successively after cooling rotor cavity liquid outlet opening, front liquid-through hole, liquid outlet opening, the fluid pipeline finally flowing in protecgulum chamber and from protecgulum chamber is discharged, so repeatedly.Cooling water directly carries out cooling to the internal rotor of vacuum pump, cooling water and rotor area of contact are large, and good cooling results has extended working life of Roots pump greatly.On the other hand, the water intake of another two-way cooling water from front side cap and rear side cover flows in cooling water cavity, to front side cap and rear side cover position, carries out cooling, the heat of two ends of rotor is well absorbed, increase cooling effect, cooling water is finally discharged from water outlet, so repeatedly.
Embodiment 2: a kind of Roots pump with rotor cooling structure (referring to accompanying drawing 3), its structure is similar to embodiment 1, main difference point is, in the middle of rotor, be axially arranged with attachment hole 28, rotating shaft adaptation is connected in attachment hole, on the inwall of attachment hole near both ends open, be respectively equipped with intercommunicating pore 30 after two front intercommunicating pores 29 and two, after front intercommunicating pore and one, intercommunicating pore is all communicated with a rotor cooling chamber, another front intercommunicating pore and after another intercommunicating pore be all communicated with another rotor cooling chamber.After being respectively equipped with two front connectivity slots 31 and two near two ends of rotor position on rotating shaft outer wall, the front connectivity slot of connectivity slot 32, two is communicated with respectively front cooling chamber and two front intercommunicating pores, intercommunicating pore after cooling chambers and two after two rear connectivity slots are communicated with.Cooling water carries out coolingly by arriving after rear connectivity slot, rear intercommunicating pore from rear cooling chamber successively to rotor in rotor cooling chamber, and from rear intercommunicating pore, rear connectivity slot, be discharged to front cooling chamber successively.The connection of cooling chamber and rotor cooling chamber and rear cooling chamber and rotor cooling chamber before realizing by connectivity slot before arranging in rotating shaft and rear connectivity slot, thus make the processing of rotating shaft convenient, cut down finished cost.
Above-described embodiment is two kinds of schemes preferably of the present utility model, not the utility model is done to any pro forma restriction, also has other variant and remodeling under the prerequisite that does not exceed the technological scheme that claim records.
Claims (10)
1. the Roots pump with rotor cooling structure, comprise the pump housing (1), the rear and front end of the pump housing is connected with respectively front side cap (2) and rear side cover (3), on front side cap, connect protecgulum (4), in rear side cover, connect bonnet (5), between protecgulum and bonnet, be connected with rotating shaft (6), in rotating shaft, be connected with rotor (22), rotor is arranged in the pump housing, it is characterized in that, in protecgulum, be provided with protecgulum chamber (7), in front side cap, be provided with front cooling chamber (8), in bonnet, be provided with bonnet chamber (9), in rear side cover, be provided with rear cooling chamber (10), protecgulum chamber and front cooling chamber are communicated with, bonnet chamber and rear cooling chamber are communicated with, rotor is figure-8 structure, in rotor, be provided with the rotor cooling chamber (26) of two sealings, the two ends of rotor cooling chamber are communicated with front cooling chamber and rear cooling chamber respectively, on rotor, near inlet opening position, be socketed with the centrifugal impeller (14) for driving cooling liquid, centrifugal impeller is arranged in rear cooling chamber, bonnet is provided with the input duct being communicated with bonnet chamber, protecgulum is provided with the fluid pipeline being communicated with protecgulum chamber.
2. the Roots pump with rotor cooling structure according to claim 1, is characterized in that, on two symmetrically arranged rotor cooling chambers inwall away from axis, is equipped with some spiral guiding grooves (27).
3. the Roots pump with rotor cooling structure according to claim 1, is characterized in that, two rotor cooling chambers are the tubular structure of frustoconic shape, and the aperture of rotor cooling chamber is from increasing gradually to the other end near rotor cavity inlet opening end.
4. according to the Roots pump with rotor cooling structure described in claim 1 or 2 or 3, it is characterized in that, the outer wall of rotating shaft and rear side cover link position is provided with the inlet opening (11) being communicated with rear cooling chamber, the outer wall of rotating shaft and front side cap link position is provided with the liquid outlet opening (12) being communicated with front cooling chamber, in rotating shaft, be provided with the rear liquid-through hole (23) being communicated with inlet opening and the front liquid-through hole (13) being communicated with liquid outlet opening, between front liquid-through hole and rotor cooling chamber, be connected with for being communicated with the rotor cavity liquid outlet opening (25) of front liquid-through hole and rotor cooling chamber, between rear liquid-through hole and rotor cooling chamber, be connected with for being communicated with the rotor cavity inlet opening (24) of rear liquid-through hole and rotor cooling chamber, rotor cavity inlet opening and rotor cavity liquid outlet opening are separately positioned on the position, rear and front end of rotor cooling chamber.
5. the Roots pump with rotor cooling structure according to claim 4, it is characterized in that, in the middle of rotor, be axially arranged with attachment hole (28), rotating shaft adaptation is connected in attachment hole, rotor cavity inlet opening and rotor cavity liquid outlet opening connect the hole wall of attachment hole, rotor cavity inlet opening is obliquely installed towards rotor front end, rotor cavity liquid outlet opening is obliquely installed towards rotor rear end, the position of intersecting point of rotor cavity inlet opening axis elongation line and rotor cavity liquid outlet opening axis elongation line is at rotor cooling chamber on the inwall away from rotating shaft, the aperture of rotor cavity inlet opening is greater than the aperture of rotor cavity liquid outlet opening.
6. according to the Roots pump with rotor cooling structure described in claim 1 or 2 or 3, it is characterized in that, in the middle of rotor, be axially arranged with attachment hole (28), rotating shaft adaptation is connected in attachment hole, on the inwall of attachment hole near both ends open, be respectively equipped with front intercommunicating pore (29) and rear intercommunicating pore (30), front intercommunicating pore and rear intercommunicating pore are all communicated with rotor cooling chamber, on rotating shaft outer wall, near two ends of rotor position, be respectively equipped with front connectivity slot (31) and rear connectivity slot (32), cooling chamber and front intercommunicating pore before front connectivity slot is communicated with, cooling chamber and rear intercommunicating pore after rear connectivity slot is communicated with.
7. according to the Roots pump with rotor cooling structure described in claim 1 or 2 or 3, it is characterized in that, the link position of rotating shaft and front side cap and rear side cover is equipped with piston ring packing circle (33), and piston ring packing snare is connected in rotating shaft.
8. according to the Roots pump with rotor cooling structure described in claim 1 or 2 or 3, it is characterized in that, be equipped with cooling water cavity (15) in front side cap and rear side cover, cooling water cavity is oval shape structure and one end is communicated with water intake, and the other end is communicated with water outlet.
9. according to the Roots pump with rotor cooling structure described in claim 1 or 2 or 3, it is characterized in that, the link position of the link position of protecgulum and front side cap and bonnet and rear side cover is equipped with gasket seal (16).
10. according to the Roots pump with rotor cooling structure described in claim 1 or 2 or 3, it is characterized in that, on front side cap front-end face, be connected with front-end bearing pedestal (17), on rear side cover ear end face, be connected with rear bearing block (18), in front-end bearing pedestal and rear bearing block, be all connected with bearing (21), bearing is closely socketed in rotating shaft, on front-end bearing pedestal, be sealedly connected with fore bearing gland (19), fore bearing gland is pressed on bearing face and is connected fastening with front side cap, on rear bearing block, be sealedly connected with rear bearing gland (20), rear bearing gland is pressed on bearing face and is connected fastening with rear side cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617574.4U CN203516109U (en) | 2013-10-08 | 2013-10-08 | Roots pump with rotor cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617574.4U CN203516109U (en) | 2013-10-08 | 2013-10-08 | Roots pump with rotor cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516109U true CN203516109U (en) | 2014-04-02 |
Family
ID=50375047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617574.4U Withdrawn - After Issue CN203516109U (en) | 2013-10-08 | 2013-10-08 | Roots pump with rotor cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516109U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511282A (en) * | 2013-10-08 | 2014-01-15 | 杭州新安江工业泵有限公司 | Roots pump with rotor cooling structure |
| CN110879159A (en) * | 2019-12-27 | 2020-03-13 | 长安大学 | High-temperature high-humidity aerosol sampling device and sampling method |
| CN112128101A (en) * | 2020-09-17 | 2020-12-25 | 淄博双环真空泵厂 | Roots vacuum pump |
| CN112145414A (en) * | 2020-09-17 | 2020-12-29 | 淄博双环真空泵厂 | Vacuum roots pump |
-
2013
- 2013-10-08 CN CN201320617574.4U patent/CN203516109U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511282A (en) * | 2013-10-08 | 2014-01-15 | 杭州新安江工业泵有限公司 | Roots pump with rotor cooling structure |
| CN103511282B (en) * | 2013-10-08 | 2016-03-30 | 杭州新安江工业泵有限公司 | With the Roots pump of rotor cooling structure |
| CN110879159A (en) * | 2019-12-27 | 2020-03-13 | 长安大学 | High-temperature high-humidity aerosol sampling device and sampling method |
| CN112128101A (en) * | 2020-09-17 | 2020-12-25 | 淄博双环真空泵厂 | Roots vacuum pump |
| CN112145414A (en) * | 2020-09-17 | 2020-12-29 | 淄博双环真空泵厂 | Vacuum roots pump |
| CN112128101B (en) * | 2020-09-17 | 2022-03-15 | 淄博双环真空泵厂 | Roots vacuum pump |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140402 Effective date of abandoning: 20160330 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |