CN214617151U - Fan with air dynamic sealing function - Google Patents
Fan with air dynamic sealing function Download PDFInfo
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- CN214617151U CN214617151U CN202120591657.5U CN202120591657U CN214617151U CN 214617151 U CN214617151 U CN 214617151U CN 202120591657 U CN202120591657 U CN 202120591657U CN 214617151 U CN214617151 U CN 214617151U
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- impeller
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- sealing
- shell
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- 238000007789 sealing Methods 0.000 title claims abstract description 60
- 230000000903 blocking effect Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims description 19
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
本实用新型公开了一种具有空气动态密封功能的风机，包括壳体、叶轮、轴承组件以及固定密封组件，壳体上设置有进风口以及出风口，固定密封组件安装于壳体的背面并与壳体共同围出一安装空间，进风口，出风口以及安装空间相互连通，叶轮安装于安装空间内且该叶轮与固定密封组件之间有一间隙，固定密封组件上开设有穿置孔，穿置孔与安装空间相连通，轴承组件的一端穿过穿置孔后插置于安装空间内并与叶轮相连接，固定密封组件面对叶轮的一侧还凸设有用于阻挡空气从穿置孔中逸出的阻挡部，阻挡部呈环状且围绕于穿置孔外。因此使得本实用新型具有空气动态密封功能，同时还便于对阻挡部进行清洗以及对磨损严重的固态密封组件进行维修或者更换。
The utility model discloses a fan with air dynamic sealing function, which comprises a casing, an impeller, a bearing assembly and a fixed sealing assembly. The casing is provided with an air inlet and an air outlet, and the fixed sealing assembly is installed on the back of the casing and is connected with the casing. The housing together encloses an installation space, the air inlet, the air outlet and the installation space are connected to each other, the impeller is installed in the installation space and there is a gap between the impeller and the fixed sealing component, and the fixed sealing component is provided with a perforating hole, through which the impeller is installed. The hole is communicated with the installation space. One end of the bearing assembly is inserted into the installation space after passing through the through hole and connected with the impeller. The side of the fixed seal assembly facing the impeller is also protruded with a block for preventing air from escaping from the through hole. The blocking part is annular and surrounds the outside of the through hole. Therefore, the utility model has the function of aerodynamic sealing, and at the same time, it is convenient to clean the blocking part and repair or replace the seriously worn solid-state sealing components.
Description
Technical Field
The utility model relates to a technical field of fan, concretely relates to fan with air dynamic seal function.
Background
With the rapid development of society, a blower, as a device for increasing gas pressure and discharging gas by means of input mechanical energy, may be applied to ventilation in various fields of national economy such as metallurgy, petrochemistry, electric power, urban rail transit, textiles, ships, and various places.
As is known, a fan mainly comprises a casing, an impeller and a bearing assembly; wherein, be provided with air intake and air outlet on the casing, the impeller is installed in the casing, and the impeller cover is located on the bearing subassembly and is rotated under the driving of bearing subassembly, because the bearing subassembly passes the casing and inserts in the casing, consequently the mounting hole that supplies the bearing to pass the usefulness is generally seted up at the back of casing, and in order not to obstruct the rotation of impeller, still leave the clearance between the back of impeller and casing, just so, when bearing subassembly drives the impeller rotation, the air that gets into from air intake department can be followed the mounting hole and escaped and make the casing inside cause the pressure release, and then lead to the work efficiency of fan low.
Therefore, a blower with an air dynamic sealing function is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a to present technique not enough, provide a fan with air dynamic seal function.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is:
a fan with air dynamic sealing function comprises a shell, an impeller, a bearing assembly and a fixed sealing assembly, the shell is provided with an air inlet and an air outlet, the fixed sealing component is arranged on the back surface of the shell and encloses an installation space together with the shell, the air inlet, the air outlet and the installation space are communicated with each other, the impeller is installed in the installation space, a gap is formed between the impeller and the fixed sealing component, the fixed sealing component is provided with a penetrating hole which is communicated with the mounting space, one end of the bearing assembly passes through the penetrating hole and then is inserted into the mounting space and connected with the impeller, and a blocking part for blocking air from escaping from the penetrating hole is convexly arranged on one side of the fixed sealing assembly facing the impeller, and the blocking part is annular and surrounds the penetrating hole.
In a further development, the blocking part comprises at least two first projections connected to one another, which are arranged next to one another in the radial direction of the passage opening.
In a further improvement, a second convex part is arranged on one side of the bearing assembly facing the impeller, a concave part matched with the second convex part is arranged on the back surface of the impeller, and the bearing assembly drives the impeller to rotate through the connection between the second convex part and the concave part.
The bearing assembly is further improved by comprising a spindle, a fixing shaft and a locking part, wherein one end of the fixing shaft is fixed in the spindle, the other end of the fixing shaft penetrates through the impeller, the second protruding part is arranged on one side, facing the impeller, of the spindle, and the locking part is sleeved on the fixing shaft and supports the impeller against the spindle to realize tight fit between the second protruding part and the concave part.
In a further improvement, the side of the main shaft facing the impeller is further provided with an inclined surface, the inclined surface is located on the peripheral side of the second protruding portion, and the inclined surface is obliquely arranged from outside to inside in the radial direction of the main shaft.
The fixed sealing assembly comprises a fixed block connected with the outside and a sealing baffle arranged on the fixed block, a concave space for placing the sealing baffle is formed in the fixed block in a concave mode, the blocking portion is arranged on the sealing baffle, and the penetrating hole penetrates through the sealing baffle.
In a further improvement, a third protruding portion is further convexly arranged on one side, facing the shell, of the sealing baffle, and the third protruding portion is annular and surrounds the blocking portion.
In a further improvement, the inner side wall of the connecting part of the shell and the fixed block, the side surface of the fixed block facing the shell and the side surface of the third bulge facing the shell are arranged in a mutually flush manner.
In a further improvement, an end of the first boss facing the impeller is pointed.
The utility model has the advantages that: the utility model discloses a fan with air dynamic seal function, which comprises a housin, the impeller, bearing assembly and fixed seal assembly, be provided with air intake and air outlet on the casing, fixed seal assembly installs in the back of casing and encloses a mounting space jointly with the casing, the air intake, air outlet and mounting space communicate each other, install in the mounting space and have a clearance between this impeller and the fixed seal assembly, the hole of wearing has been seted up on the fixed seal assembly, wear to put the hole and be linked together with the mounting space, the one end of bearing assembly is passed and is worn to put the hole back and insert and arrange in the mounting space and be connected with the impeller, fixed seal assembly still protruding being equipped with in one side of impeller and being used for blockking the air follow wear to put the barrier section of overflowing in the hole, the barrier section is cyclic annular and encloses outside wearing to put the hole. Therefore, when the bearing assembly drives the impeller to rotate, when air is driven by the impeller to enter the gap, the air can be blocked and cannot pass through the blocking part and then escape from the penetrating hole due to the blocking part arranged in the gap, so that the utility model has the function of air dynamic sealing; meanwhile, the fixed sealing assembly can be separated from the shell for disassembly, so that the blocking part can be cleaned conveniently, and the solid sealing assembly which is seriously abraded can be repaired or replaced conveniently.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a schematic view of the overall structure of the fan with air dynamic sealing function of the present invention;
fig. 2 is a schematic perspective view of the spindle of the present invention;
fig. 3 is a schematic perspective view of the sealing baffle of the present invention;
fig. 4 is a cross-sectional view of the seal baffle of the present invention.
In the figure: 100. the fan with the air dynamic sealing function comprises a shell 10, an impeller 20, a bearing assembly 30, a fixed sealing assembly 40, an air inlet 10a, an air outlet 10b, an installation space 100a, a gap 100b, a penetrating hole 40a, a blocking part 41, a first convex part 411, a second convex part 31, a concave part 21, a main shaft 32, a fixed shaft 33, a fixed shaft 34, a locking part 321, an inclined surface 42, a fixed block 43, a sealing baffle 42a, a concave space 431 and a third convex part.
Detailed Description
The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.
Referring to fig. 1 to 4, a fan 100 with an air dynamic sealing function according to the present invention includes a casing 10, an impeller 20, a bearing assembly 30 and a fixed sealing assembly 40. The casing 10 is provided with an air inlet 10a and an air outlet 10b, the fixed seal assembly 40 is mounted on the back of the casing 10 and encloses an installation space 100a together with the casing 10, the air inlet 10a, the air outlet 10b and the installation space 100a are communicated with each other, the impeller 20 is mounted in the installation space 100a, a gap 100b is formed between the impeller 20 and the fixed seal assembly 40, the fixed seal assembly 40 is provided with a penetrating hole 40a, the penetrating hole 40a is communicated with the installation space 100a, one end of the bearing assembly 30 penetrates through the penetrating hole 40a and is inserted into the installation space 100a and connected with the impeller 20, one side of the fixed seal assembly 40 facing the impeller 20 is further convexly provided with a blocking portion 41 for blocking air from escaping from the penetrating hole 40a, and the blocking portion 41 is annular and encloses the penetrating hole 40a. As shown in fig. 3 and 4, the blocking portion 41 includes at least two first protrusions 411 connected to each other, and the first protrusions 411 are arranged side by side in a radial direction of the through hole 40a, that is, the blocking portion 41 is composed of a plurality of concentric rings.
Referring to fig. 1 and 2, a side of the bearing assembly 30 facing the impeller 20 is provided with a second protruding portion 31, a back surface of the impeller 20 is provided with a recessed portion 21 matching with the second protruding portion 31, the bearing assembly 30 drives the impeller 20 to rotate through the connection between the second protruding portion 31 and the recessed portion 21, for example, the second protruding portion 31 and the recessed portion 21 may be provided as a matching tooth structure, but not limited thereto. Specifically, the bearing assembly 30 includes a main shaft 32, a fixed shaft 33 and a locking member 34, wherein one end of the fixed shaft 33 is fixed in the main shaft 32, the other end of the fixed shaft 33 passes through the impeller 20, the second protruding portion 31 is disposed on a side of the main shaft 32 facing the impeller 20, and the locking member 34 is sleeved on the fixed shaft 33 and supports the impeller 20 against the main shaft 32 to achieve a tight fit between the second protruding portion 31 and the recessed portion 21. More specifically, the side of the main shaft 32 facing the impeller 20 is further provided with an inclined surface 321, the inclined surface 321 is located on the peripheral side of the second protruding portion 31, and the inclined surface 321 is arranged obliquely backward from outside to inside in the radial direction of the main shaft 32, thereby further facilitating the connection stability between the impeller 20 and the main shaft 32.
Referring to fig. 1, 3 and 4, the fixing and sealing assembly 40 includes a fixing block 42 connected to the outside and a sealing baffle 43 mounted on the fixing block 42, a recessed space 42a for placing the sealing baffle 43 is formed on the fixing block 42, the blocking portion 41 is disposed on the sealing baffle 43, and the through hole 40a penetrates through the sealing baffle 43. As shown in fig. 3 and 4, a third protrusion 431 is further protruded from a side of the sealing baffle 43 facing the housing 10, and the third protrusion 431 is annular and surrounds the blocking portion 41.
It should be noted that, as shown in fig. 1, the inner side wall of the connecting portion of the casing 10 and the fixing block 42, the side of the fixing block 42 facing the casing 10, and the side of the third protruding portion 431 facing the casing 10 are disposed in parallel and level with each other, so that the air can flow more smoothly from the air inlet 10a to the air outlet 10b without being blocked when the fan 100 with the air dynamic sealing function of the present invention is in actual operation. In addition, for example, one end of the first protrusion 411 facing the impeller 20 is a tip, so that the tip of the first protrusion 411 can be lapped on the impeller 20 in the actual production and installation process, and the tip is naturally worn by the impeller 20 in the daily operation process, so that the first protrusion 411 is always tightly attached to the impeller 20, and the good effect of air dynamic sealing can be further ensured.
The utility model has the advantages that: the utility model discloses a fan 100 with air dynamic seal function, including casing 10, impeller 20, bearing assembly 30 and fixed seal assembly 40, be provided with air intake 10a and air outlet 10b on the casing 10, fixed seal assembly 40 is installed in the back of casing 10 and encloses a installation space 100a with casing 10 jointly, air intake 10a, air outlet 10b and installation space 100a communicate with each other, impeller 20 installs in installation space 100a and has a clearance 100b between this impeller 20 and the fixed seal assembly 40, fixed seal assembly 40 is last to have worn to put hole 40a, worn to put hole 40a and installation space 100a and be linked together, one end of bearing assembly 30 passes to put through hole 40a after inserting in installation space 100a and be connected with impeller 20, fixed seal assembly 40 still protruding the portion 41 that is used for stopping air from wearing to put through hole 40a to be equipped with to one side of impeller 20, the blocking portion 41 is annular and surrounds the insertion hole 40a. Therefore, when the bearing assembly 30 drives the impeller 20 to rotate, when the air is driven by the impeller 20 and enters the gap 100b, the air is blocked and cannot pass through the blocking part 41 and then escape from the penetrating hole 40a because the blocking part 41 is arranged in the gap 100b, so that the utility model has an air dynamic sealing function; at the same time, since the fixed seal assembly 40 can be detached from the housing 10, it is convenient to clean the blocking portion 41 and repair or replace the severely worn solid seal assembly.
The utility model discloses be not limited to above-mentioned embodiment, adopt and the utility model discloses the same or approximate structure or device of above-mentioned embodiment, and the other fan that is used for having the airtight dynamic seal function that obtains is all within the protection scope of the utility model.
Claims (9)
1. The utility model provides a fan with air dynamic seal function which characterized in that: comprises a shell, an impeller, a bearing assembly and a fixed sealing assembly, wherein the shell is provided with an air inlet and an air outlet, the fixed sealing component is arranged on the back surface of the shell and encloses an installation space together with the shell, the air inlet, the air outlet and the installation space are communicated with each other, the impeller is installed in the installation space, a gap is formed between the impeller and the fixed sealing component, the fixed sealing component is provided with a penetrating hole which is communicated with the mounting space, one end of the bearing assembly passes through the penetrating hole and then is inserted into the mounting space and connected with the impeller, and a blocking part for blocking air from escaping from the penetrating hole is convexly arranged on one side of the fixed sealing assembly facing the impeller, and the blocking part is annular and surrounds the penetrating hole.
2. The blower with the air dynamic sealing function according to claim 1, wherein: the blocking part comprises at least two first protruding parts which are connected with each other, and the first protruding parts are arranged side by side along the radial direction of the penetrating hole.
3. The blower with the air dynamic sealing function according to claim 1, wherein: the bearing assembly is provided with a second protruding portion on one side facing the impeller, a recessed portion matched with the second protruding portion is arranged on the back face of the impeller, and the bearing assembly drives the impeller to rotate through connection between the second protruding portion and the recessed portion.
4. The blower with the air dynamic sealing function according to claim 3, wherein: the bearing assembly comprises a spindle, a fixing shaft and a locking piece, one end of the fixing shaft is fixed in the spindle, the other end of the fixing shaft penetrates through the impeller, the second protruding portion is arranged on one side, facing the impeller, of the spindle, and the locking piece is sleeved on the fixing shaft and abuts against the impeller on the spindle to achieve tight fit between the second protruding portion and the recessed portion.
5. The blower with the air dynamic sealing function according to claim 4, wherein: the main shaft is faced one side of impeller still is provided with the inclined plane, the inclined plane is located the week side of second bellying, just the inclined plane is followed the radial from the outside to the inside backward slope ground of main shaft arranges.
6. The blower with the air dynamic sealing function according to claim 1, wherein: the fixed sealing assembly comprises a fixed block connected with the outside and a sealing baffle arranged on the fixed block, a concave space for placing the sealing baffle is formed in the fixed block in a concave mode, the blocking portion is arranged on the sealing baffle, and the penetrating hole penetrates through the sealing baffle.
7. The blower with the air dynamic sealing function according to claim 6, wherein: the sealing baffle is provided with a first protruding part facing one side of the shell, and the first protruding part is annular and surrounds the blocking part.
8. The blower with the air dynamic sealing function according to claim 7, wherein: the inner side wall of the connecting part of the shell and the fixed block, the side surface of the fixed block facing the shell and the side surface of the third bulge facing the shell are arranged in a mutually flush manner.
9. The blower with the air dynamic sealing function according to claim 2, wherein: one end of the first bulge facing the impeller is a tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591657.5U CN214617151U (en) | 2021-03-23 | 2021-03-23 | Fan with air dynamic sealing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591657.5U CN214617151U (en) | 2021-03-23 | 2021-03-23 | Fan with air dynamic sealing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617151U true CN214617151U (en) | 2021-11-05 |
Family
ID=78396441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120591657.5U Active CN214617151U (en) | 2021-03-23 | 2021-03-23 | Fan with air dynamic sealing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617151U (en) |
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2021
- 2021-03-23 CN CN202120591657.5U patent/CN214617151U/en active Active
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