CN209959576U - Coaxial autorotation cooling device of centrifugal blower - Google Patents
Coaxial autorotation cooling device of centrifugal blower Download PDFInfo
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- CN209959576U CN209959576U CN201920694152.4U CN201920694152U CN209959576U CN 209959576 U CN209959576 U CN 209959576U CN 201920694152 U CN201920694152 U CN 201920694152U CN 209959576 U CN209959576 U CN 209959576U
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- exhaust side
- oil tank
- main shaft
- centrifugal blower
- coaxial
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Abstract
The utility model discloses a coaxial rotation cooling device of centrifugal blower, including being located the exhaust side and installing the exhaust side bearing on the rotating main shaft, the exhaust side bearing is connected with the exhaust side lubricating-oil tank that is used for bearing lubrication, exhaust side bearing and exhaust side lubricating-oil tank install respectively on exhaust side bearing frame, exhaust side lubricating-oil tank includes the exhaust side lubricating-oil tank box body and the exhaust side lubricating-oil tank heat conduction through-cover of erection joint, the exhaust side end portion of rotating main shaft runs through the exhaust side lubricating-oil tank and extends to the outside and forms the rotating main shaft extension section, the fixed cover is equipped with cooling fan on the rotating main shaft extension section, cooling fan is equipped with a plurality of cooling fan blades; the utility model discloses set up cooling fan ingeniously, carry out the rotation under the rotatory drive of rotatory main shaft through cooling fan, and then realize the cooling effect to exhaust side lubricating-oil tank and exhaust side bearing.
Description
Technical Field
The utility model belongs to centrifugal blower product manufacturing field, concretely relates to centrifugal blower's coaxial rotation cooling device.
Background
The working principle of the multistage centrifugal blower in the prior art is that according to the principle that kinetic energy is converted into potential energy, an impeller rotating at a high speed is used for accelerating gas, then decelerating and changing the flow direction, so that the kinetic energy is converted into the potential energy in a pressure form. During the operation of the multistage centrifugal blower, the temperature of the gas rises along with the gradual compression of the sucked gas, namely the exhaust temperature of the multistage centrifugal blower changes along with the exhaust pressure, and the exhaust temperature can reach as high as about 150 ℃.
Specifically, referring to fig. 1, a multi-stage centrifugal blower 100 generally adopts a tandem mounting structure, which mainly includes a rotary spindle 110 in transmission connection with a rotary driving unit (not shown), an air inlet housing 120 integrally mounted with the rotary spindle 110, a multi-stage impeller mounted in a middle housing 130, an air outlet housing 140, and the like, wherein two ends of the rotary spindle 110 are respectively mounted on a bearing seat 150 through bearings, and the bearings at the two ends are respectively connected with a lubricating oil tank 160 for bearing lubrication, the bearing seat 150 and the lubricating oil tank 160 at the air inlet side are mounted on the air inlet housing 120, the bearing seat 150 and the lubricating oil tank 160 at the air outlet side are mounted on the air outlet housing 140 in an external manner, and as mentioned above, because the air outlet housing 140 has a higher air outlet temperature during operation, the ambient temperature of the bearings at the air outlet side is obviously higher than room temperature, moreover, the shaft end leakage gas on the exhaust side of the centrifugal fan 100 is simultaneously blown to the bearing holder 150 on the exhaust side, and the bearing temperature on the exhaust side is much higher than the bearing temperature on the intake side, and may be as high as about 100 ℃.
In order to reduce the temperature of a bearing on an exhaust side, in the prior art, a coil pipe for introducing cooling water is usually added in a lubricating oil tank on the exhaust side to cool the bearing on the exhaust side, obviously, the cooling technical scheme needs to add a cooling water tank, a water pump, a cooling water path and other structures, and meanwhile, the leakage of the cooling water in the coil pipe must be always prevented, and particularly, when the engine is shut down in winter, the cooling water in the coil pipe must be timely discharged to ensure that the coil pipe is not easily damaged; the required mounting structure of cooling scheme is complicated and maintains loaded down with trivial details, with high costs.
Disclosure of Invention
In view of this, the present invention provides a coaxial autorotation cooling device of a centrifugal blower, which skillfully sets a cooling fan, and the cooling fan rotates under the rotation of a rotating spindle, so as to achieve the cooling effect on an exhaust side lubricating oil tank and an exhaust side bearing.
The utility model adopts the technical scheme as follows:
the utility model provides a coaxial rotation cooling device of centrifugal blower, is including being located the exhaust side and installing the exhaust side bearing on rotatory main shaft, the exhaust side bearing is connected with the exhaust side lubricating-oil tank that is used for bearing lubrication, the exhaust side bearing with the exhaust side lubricating-oil tank is installed respectively on the exhaust side bearing, wherein, exhaust side lubricating-oil tank includes installation connection's exhaust side lubricating-oil tank box and exhaust side lubricating-oil tank heat conduction cover, the exhaust side tip of rotatory main shaft runs through exhaust side lubricating-oil tank and outside extension formation rotatory main shaft extension section, fixed cover is equipped with cooling fan on the rotatory main shaft extension section, cooling fan is equipped with a plurality of cooling fan blades.
Preferably, the rotating main shaft extension section is provided with a fan housing for protecting the cooling fan, the fan housing is fixedly mounted on the exhaust side lubricating oil tank, and the fan housing is provided with a plurality of cooling air holes.
Preferably, the end plate of the fan housing is a perforated plate.
Preferably, a sealing sleeve is sleeved at the joint between the rotating main shaft and the heat-conducting transparent cover of the exhaust side lubricating oil tank.
Preferably, the seal sleeve comprises a seal outer sleeve and a seal inner sleeve which are pressed into a whole, and the seal inner sleeve is fixedly sleeved on the rotating main shaft.
Preferably, the sealing sleeve is made of a non-metal material.
Preferably, the sealing sleeve adopts a labyrinth sealing structure.
Preferably, the heat-conducting transparent cover of the exhaust side lubricating oil tank is cast by adopting an aluminum alloy material and is provided with a plurality of radiating ribs.
It should be noted that, cooling flabellum size can make specific selection according to the space size condition of practical application scene, require to select suitable flabellum inclination to cooling flabellum simultaneously according to the heat dissipation of actual need, these all are the conventional technique that technical staff in the field can make on this application basis and select, consequently, this application is no longer specifically explicated the description to it.
The utility model changes the non-heat-conducting cover of the lubricating oil tank at the exhaust side in the prior art into the heat-conducting cover of the lubricating oil tank at the exhaust side, simultaneously, the end part at the exhaust side of the rotating spindle is lengthened and runs through the lubricating oil tank at the exhaust side and extends outwards, and the cooling fan is arranged on the extension section of the rotating spindle, when the centrifugal blower works, the cooling fan blade of the cooling fan can rotate under the rotation driving of the rotating spindle, thereby realizing the cooling effect on the lubricating oil tank at the exhaust side and the bearing at the exhaust side;
the utility model discloses further preferably set up the fan housing that is equipped with a plurality of cooling gas pockets, the fan housing not only can effectively protect the cooling fan, but also can make it not expose externally, and then ensure operating personnel's security, the cooling gas pocket can also guarantee to have the sufficient air input that is used for the cooling fan work simultaneously;
in order to prevent that the cooling fan is rotatory to produce the vibration and lead to rotatory main shaft and heat conduction to pass through the lid and take place the friction and then take place the problem emergence that lubricating oil is leaked along the axle, simultaneously in order to avoid blowing to the side lubricating-oil tank of exhausting and leading to the dust to see through the heat conduction to pass through to cover and get into and cause the pollution to lubricating oil in the oil tank body because of cooling fan inhales external gas, the utility model discloses further preferably, establish the sealed cover structure at the junction cover between rotatory main shaft and the side lubricating-oil tank heat conduction is passed through the lid, can realize grease proofing leakage and dirt-proof technological effect, and only need change the seal cover when the bearing damage condition appears can, need not to.
Drawings
FIG. 1 is a schematic structural view of a prior art multi-stage centrifugal blower;
fig. 2 is a sectional view of the coaxial self-cooling device of the centrifugal blower according to the embodiment of the present invention.
Detailed Description
The embodiment of the utility model discloses centrifugal blower's coaxial rotation cooling device, including being located the exhaust side and installing the exhaust side bearing on the rotating main shaft, the exhaust side bearing is connected with the exhaust side lubricating-oil tank that is used for the bearing lubrication, exhaust side bearing and exhaust side lubricating-oil tank install respectively on exhaust side bearing, wherein, exhaust side lubricating-oil tank includes installation connection's exhaust side lubricating-oil tank box and exhaust side lubricating-oil tank heat conduction through cover, the exhaust side end portion of rotating main shaft runs through exhaust side lubricating-oil tank and extends the rotatory main shaft extension section of formation to the outside, fixed cover is equipped with cooling fan on the rotatory main shaft extension section, cooling fan is equipped with a plurality of cooling flabellums.
The embodiment of the utility model provides a change the non-thermal stifled stifle of exhaust side lubricating-oil tank of prior art into the transparent lid of exhaust side lubricating-oil tank heat conduction, simultaneously with the exhaust side tip extension of rotatory main shaft and run through exhaust side lubricating-oil tank and outside extension, through set up cooling fan on the extension of this rotatory main shaft the utility model discloses a centrifugal blower during operation, cooling fan's cooling fan blade can carry out the rotation under the rotatory drive of rotatory main shaft, and then realizes the cooling effect to exhaust side lubricating-oil tank and exhaust side bearing.
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
The centrifugal blower of the present embodiment, which employs the centrifugal blower, has the same remaining structure as the multi-stage centrifugal blower 100 shown in fig. 1, except that, referring to fig. 2, the centrifugal blower of the present embodiment has a coaxial self-cooling device 200 including an exhaust side bearing 220 located on an exhaust side and mounted on a rotating main shaft 210, the exhaust side bearing 220 is connected to an exhaust side lubricating oil tank 230 for lubricating the bearing 220, the exhaust side bearing 220 and the exhaust side lubricating oil tank 230 are respectively mounted on an exhaust side bearing housing 240, wherein, the exhaust side lubricating oil tank 230 comprises an exhaust side lubricating oil tank body 231 and an exhaust side lubricating oil tank heat-conducting transparent cover 232 which are installed and connected, and particularly preferably, in the present embodiment, the exhaust side lubricating oil tank heat conducting transparent cover 232 is made of an aluminum alloy material by casting, and is provided with a plurality of heat dissipating fins (not shown) for further improving heat dissipating and cooling effects;
in the present embodiment, the exhaust side end of the rotating main shaft 210 penetrates the exhaust side lubricating oil tank 230 and extends outward to form a rotating main shaft extension section 210a, a cooling fan 250 is fixedly sleeved on the rotating main shaft extension section 210a, and the cooling fan 250 is provided with a plurality of cooling fan blades 251;
preferably, in the present embodiment, the rotary spindle extension 210a is provided with a fan housing 260 for shielding the cooling fan 250, the fan housing 260 is fixedly installed on the exhaust side lubricating oil tank 230, and it is provided with a plurality of cooling air holes (not shown); preferably, in the present embodiment, the end plate of the fan housing 260 is a perforated plate;
preferably, in the present embodiment, a sealing sleeve 270 is sleeved at the connection between the rotating main shaft 210 and the exhaust-side lubricating oil tank heat-conducting transparent cover 232; further preferably, in the present embodiment, the sealing sleeve 270 includes a sealing outer sleeve 271 and a sealing inner sleeve 272 that are pressed together, and the sealing inner sleeve 272 is fixedly sleeved on the rotating main shaft 210; the sealing sleeve 270 adopts a labyrinth sealing structure, and particularly preferably, the sealing sleeve 270 is made of a non-metal wear-resistant material and has self-lubricating performance.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a coaxial rotation cooling device of centrifugal blower, is including being located the exhaust side and installing the exhaust side bearing on rotatory main shaft, the exhaust side bearing is connected with the exhaust side lubricating-oil tank that is used for bearing lubrication, the exhaust side bearing with the exhaust side lubricating-oil tank is installed respectively on the exhaust side bearing, a serial communication port, exhaust side lubricating-oil tank includes installation connection's exhaust side lubricating-oil tank box and exhaust side lubricating-oil tank heat conduction through cover, the exhaust side tip of rotatory main shaft runs through exhaust side lubricating-oil tank and outside extension formation rotatory main shaft extension section, fixed cover is equipped with cooling fan on the rotatory main shaft extension section, cooling fan is equipped with a plurality of cooling fan blades.
2. The coaxial autorotation cooling device of a centrifugal blower according to claim 1 wherein said rotating spindle extension is provided with a fan housing for shielding said cooling fan, said fan housing is fixedly mounted on said discharge side lubricating oil tank and is provided with a plurality of cooling air holes.
3. The coaxial autorotation cooling device of a centrifugal blower as claimed in claim 2 wherein said end plates of said fan housing are perforated plates.
4. The coaxial autorotation cooling device of a centrifugal blower according to claim 1 is characterized in that a sealing sleeve is sleeved at the joint between the rotating main shaft and the heat-conducting transparent cover of the exhaust side lubricating oil tank.
5. The coaxial autorotation cooling device of a centrifugal blower according to claim 4 wherein said sealing sleeve comprises an outer sealing sleeve and an inner sealing sleeve which are pressed together and fixed on the rotating main shaft.
6. The coaxial autorotation cooling device of a centrifugal blower of claim 4 wherein said gland is made of non-metallic material.
7. The coaxial autorotation cooling device of a centrifugal blower as claimed in claim 4 wherein said gland is a labyrinth seal.
8. The coaxial autorotation cooling device of a centrifugal blower according to claim 1 wherein said exhaust side lubricant tank heat conductive transparent cover is made of aluminum alloy material by casting and is provided with a plurality of fins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694152.4U CN209959576U (en) | 2019-05-16 | 2019-05-16 | Coaxial autorotation cooling device of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920694152.4U CN209959576U (en) | 2019-05-16 | 2019-05-16 | Coaxial autorotation cooling device of centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209959576U true CN209959576U (en) | 2020-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920694152.4U Expired - Fee Related CN209959576U (en) | 2019-05-16 | 2019-05-16 | Coaxial autorotation cooling device of centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209959576U (en) |
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2019
- 2019-05-16 CN CN201920694152.4U patent/CN209959576U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 Termination date: 20210516 |