CN221628479U - Axial flow fan with built-in sealing assembly - Google Patents
Axial flow fan with built-in sealing assembly Download PDFInfo
- Publication number
- CN221628479U CN221628479U CN202420328700.2U CN202420328700U CN221628479U CN 221628479 U CN221628479 U CN 221628479U CN 202420328700 U CN202420328700 U CN 202420328700U CN 221628479 U CN221628479 U CN 221628479U
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- Prior art keywords
- fixedly connected
- sealing
- bearing seat
- shell
- built
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- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 238000010992 reflux Methods 0.000 claims abstract description 43
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 22
- 238000010521 absorption reaction Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000012634 fragment Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 description 18
- 239000003921 oil Substances 0.000 description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an axial flow fan with a built-in sealing component, which comprises a fan shell and a motor arranged on the right side inside the fan shell, wherein the output end of the motor is fixedly connected with a driving shaft, the output end of the driving shaft is fixedly connected with a fan, and the middle part of the driving shaft is sleeved with a bearing seat; the two ends of the bearing seat are provided with sealing assemblies, and a reflux mechanism is arranged in the bearing seat; the sealing assembly comprises a sealing shell fixedly connected with two ends of a bearing seat, straight rods are symmetrically and threadedly connected to the side edges of the sealing shell, clamping rings are rotationally connected to the other ends of the straight rods, sealing sleeves are fixedly connected to the inner sides of the clamping rings, and spiral spring plates are slidably connected to the middle parts of the straight rods; the clamping ring can be always and slightly pressed on the surface of the driving shaft in the use process, and even if gaps appear due to abrasion, the gap can be gradually made up, and finally, the tightness is kept good.
Description
Technical Field
The utility model relates to the technical field of axial flow fans, in particular to an axial flow fan with a built-in sealing component.
Background
Publication number CN219262758U discloses an axial flow fan with seal assembly, including the main shaft, the bearing frame of setting on the main shaft, the bearing of setting in the bearing frame and set up the end cover at the bearing frame tip respectively, the bearing frame includes the cover body and sets up the mount pad at cover body both ends respectively, the one end that the cover body was kept away from to two mount pads is provided with the installation cavity respectively, the bearing sets up in corresponding installation cavity, the one end screw connection of end cover that keeps away from the bearing frame has the gland, the one end that the end cover was towards the bearing is provided with the inner seal groove, be provided with the inner seal ring in the inner seal groove, the one end that the end cover was towards the gland is provided with the outer seal groove, be provided with the outer seal ring in the outer seal groove, this device is through setting up inner seal groove, the inner seal ring, prevent the outside leakage of lubricating oil in the bearing frame along the main shaft; set up outer seal groove, outer sealing washer, prevent that outside dust particle, water etc. from entering into main shaft or motor inside, kept the inside dryness of motor, prolonged the life of motor, but this patent still has following problem in the in-service use:
in order to ensure sealing, the outer sealing ring and the inner sealing ring in the device are attached to the main shaft, however, as the main shaft can continuously vibrate and rub against the outer sealing ring and the inner sealing ring when in use, after long-time use, the outer sealing ring and the inner sealing ring are worn, gaps are generated between the outer sealing ring and the main shaft, the wear speed of the gaps directly determines the sealing effect of the equipment, and when the wear occurs, the sealing performance of the equipment starts to be reduced, and along with the use, the sealing effect is poorer and poorer.
An axial flow fan with a built-in seal assembly is proposed in order to solve the problems set forth in the foregoing.
Disclosure of utility model
The utility model aims to provide an axial flow fan with a built-in sealing component, which solves the problem that an outer sealing ring and an inner sealing ring provided by the background technology are gradually worn after long-term use, so that the device cannot be effectively sealed.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the axial flow fan with the built-in sealing assembly comprises a fan shell and a motor arranged on the right side inside the fan shell, wherein the output end of the motor is fixedly connected with a driving shaft, the output end of the driving shaft is fixedly connected with a fan, and the middle part of the driving shaft is sleeved with a bearing seat;
the two ends of the bearing seat are provided with sealing assemblies, and a reflux mechanism is arranged in the bearing seat;
The sealing assembly comprises a sealing shell fixedly connected with two ends of a bearing seat, a straight rod is symmetrically and threadedly connected with the side edge of the sealing shell, a clamping ring is rotationally connected with the other end of the straight rod, a sealing sleeve is fixedly connected with the inner side of the clamping ring, and a spiral elastic sheet is slidably connected with the middle part of the straight rod.
Preferably, the outside fixedly connected with swivel nut of enclosure, set up the screw thread section on the straight-bar, screw thread section and swivel nut threaded connection, the middle part of straight-bar is connected with the fixed sleeve of the inside fixed connection of enclosure in through connection.
Preferably, the inside of fixed cover and the one end fixed connection of spiral shell fragment, the spout has been seted up at the middle part of straight-bar, the spout is vertically seted up on the straight-bar, sliding connection has the sliding block on the spout, the sliding block is in the other end fixed connection of spiral shell fragment.
Preferably, the two clamping rings at the same end of the closed shell are clamped in a staggered manner, and the two sealing sleeves at the same end of the closed shell are clamped in a staggered manner.
Preferably, the inner side of the closed shell is fixedly connected with water absorbent cotton, the water absorbent cotton is positioned between the clamping ring and the bearing seat, and the side edge of the clamping ring is attached to the inner side edge of the closed shell.
Preferably, the reflux mechanism comprises a reflux groove, one end of the reflux groove is positioned at the joint of the closed shell and the bearing seat, and the other end of the reflux groove extends into the bearing seat.
Preferably, the one end inside that the reflux groove is close to the drive shaft is filled with oil absorption cotton, the other end inner wall fixedly connected with reflux plate of reflux groove, reflux plate overlap joint have with reflux groove inner wall fixed connection's limiting plate, the limiting plate is made for the iron and steel piece, the reflux plate is made for thin copper sheet.
Compared with the prior art, the utility model has the beneficial effects that: this an axial fan of built-in seal assembly, the clamp ring can be light pressure subsides all the time at the drive shaft surface in the use, even take place wearing and tearing and lead to appearing the gap, also can compensatied the gap gradually, finally keep the seal good, the oil absorption cotton is as the means of preliminary preventing the oil spilling, cooperates the seal cover, can more effectually avoid the oil spilling, its concrete content is as follows:
1. In the process of rotating the driving shaft, the sealing sleeve is tightly attached to the driving shaft and generates friction, so that abrasion is caused and gaps are generated, at the moment, the spiral elastic sheet is loosened, so that the straight rod is pulled to rotate through the sliding block, the threaded section on the straight rod rotates in the threaded sleeve, then the straight rod descends in the rotation, at the moment, the sliding block slides in the sliding groove, along with the descending of the straight rod, the clamping ring pushes the sealing sleeve to be attached to the driving shaft again, finally, the clamping ring can be lightly pressed on the surface of the driving shaft all the time, even if gaps occur due to abrasion, the gaps can be immediately made up, and finally, the device can maintain good tightness;
2. In the rotatory in-process of drive shaft, if appear lubricating oil and pass through the laminating department of drive shaft and bearing frame, when removing in to the seal shell, can be by the oil absorption cotton in the reflux tank at first whole absorption, when the lubricating oil in the oil absorption cotton is too much, under the effect of gravity, it can flow back into the bearing frame inside through the reflux tank, and the oil absorption cotton is as the means of preliminary preventing the oil spilling, cooperates the seal cover, can more effectually avoid the oil spilling.
Drawings
FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the bearing housing and enclosure;
FIG. 3 is an enlarged schematic view of the area A in FIG. 2;
FIG. 4 is a schematic top view of the retaining sleeve;
Fig. 5 is a schematic cross-sectional structure of the clamping ring.
In the figure: 1. a blower housing; 101. a motor; 102. a drive shaft; 103. a fan; 104. a bearing seat; 2. a closure assembly; 201. a closed shell; 202. a straight rod; 203. a screw sleeve; 204. a fixed sleeve; 205. a spiral spring plate; 206. a sliding block; 207. a clamping ring; 208. sealing sleeve; 209. a water-absorbing cotton; 210. a threaded section; 3. a reflow mechanism; 301. a reflux groove; 302. oil absorbing cotton; 303. a reflow plate; 304. and a limiting plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides the following technical solutions: an axial flow fan with a built-in sealing assembly comprises a fan shell 1 and a motor 101 arranged on the right side inside the fan shell 1, wherein the output end of the motor 101 is fixedly connected with a driving shaft 102, the output end of the driving shaft 102 is fixedly connected with a fan 103, and the middle part of the driving shaft 102 is sleeved with a bearing seat 104;
The two ends of the bearing pedestal 104 are provided with sealing assemblies 2, and the interior of the bearing pedestal 104 is provided with a reflux mechanism 3;
The sealing assembly 2 comprises a sealing shell 201 fixedly connected with two ends of the bearing seat 104, a straight rod 202 is symmetrically and threadedly connected with the side edge of the sealing shell 201, a clamping ring 207 is rotatably connected with the other end of the straight rod 202, a sealing sleeve 208 is fixedly connected with the inner side of the clamping ring 207, and a spiral spring piece 205 is slidably connected with the middle part of the straight rod 202; the sealing sleeve 208 is divided into two parts, the part close to the outside is made of a hydrophobic silicon plate, and the part close to the outside is made of a silicon oleophobic aluminum plate, so that internal and external liquids are isolated to a certain extent, and because the hydrophobic silicon plate is lapped on the driving shaft 102, external dust cannot enter the bearing seat 104 through a gap, and a certain ash isolating effect is achieved.
The outside of the closed shell 201 is fixedly connected with a threaded sleeve 203, a straight rod 202 is provided with a threaded section 210, the threaded section 210 is in threaded connection with the threaded sleeve 203, and the middle part of the straight rod 202 is in through connection with a fixed sleeve 204 fixedly connected with the inside of the closed shell 201; the inside of the fixed sleeve 204 is fixedly connected with one end of the spiral spring piece 205, the middle part of the straight rod 202 is provided with a sliding groove which is vertically arranged on the straight rod 202, a sliding block 206 is connected on the sliding groove in a sliding way, and the sliding block 206 is fixedly connected with the other end of the spiral spring piece 205; the spiral spring piece 205 pulls the straight rod 202 to rotate in a normal state, but when the straight rod 202 rotates due to the threaded connection of the threaded section 210 and the threaded sleeve 203, the sealing sleeve 208 at the bottom end of the spiral spring piece can not descend when no gap is generated, the sealing sleeve 208 finally uses downward pressure, the spiral spring piece 205 is in a tightening state in the initial stage, and gradually loosens along with the rotation and descending of the straight rod 202, the clamping ring 207 can be always slightly pressed on the surface of the driving shaft 102, even if the gap appears due to abrasion, the gap can be immediately made up, and finally the device can maintain good tightness.
The two clamping rings 207 positioned at the same end of the closed shell 201 are clamped in a staggered manner, and the two sealing sleeves 208 positioned at the same end of the closed shell 201 are also clamped in a staggered manner; there is a certain space between two clamping rings 207 and sealing sleeve 208, so that it can move vertically when worn, and the space can not be communicated because the hydrophobic silicon plate and the silicon oleophobic aluminum plate are distributed in a staggered way, so that the tightness is ensured.
The inner side of the closed shell 201 is fixedly connected with absorbent cotton 209, the absorbent cotton 209 is positioned between the clamping ring 207 and the bearing seat 104, and the side edge of the clamping ring 207 is attached to the inner side edge of the closed shell 201; the absorbent cotton 209 can absorb a small amount of rainwater which may flow into the enclosure 201 as secondary protection, and when the device is used, temperature is generated so that the moisture in the absorbent cotton 209 can evaporate and escape through a plurality of gaps, and the inner space of the enclosure 201 is ensured to be dry.
The reflux mechanism 3 comprises a reflux groove 301, one end of the reflux groove 301 is positioned at the joint of the closed shell 201 and the bearing seat 104, and the other end of the reflux groove 301 extends into the bearing seat 104; the oil absorbing cotton 302 is filled in one end of the reflux groove 301 close to the driving shaft 102, the inner wall of the other end of the reflux groove 301 is fixedly connected with a reflux plate 303, the reflux plate 303 is overlapped with a limit plate 304 fixedly connected with the inner wall of the reflux groove 301, the limit plate 304 is made of steel sheets, and the reflux plate 303 is made of thin copper sheets; the reflux groove 301 is of a structure which is vertical and inclined firstly, can guide the dropped lubricating oil into the bearing seat, and can prevent the lubricating oil from being completely absorbed by the oil absorbing cotton 302 in the reflux groove 301 when the lubricating oil moves into the sealed shell 201, when the lubricating oil in the oil absorbing cotton 302 is excessive, the lubricating oil can flow back into the bearing seat 104 through the reflux groove 301 under the action of gravity, the oil absorbing cotton 302 is used as a primary oil spilling prevention means, and the oil spilling can be more effectively avoided by matching with the sealing sleeve 208; after the lubricating oil flows into the reflux groove 301, the lubricating oil can be blocked by the limiting plate 304 first, then when the quantity is more, the bearing seat 104 can be overflowed from the gap between the reflux plate 303 and the limiting plate 304, the lap joint of the steel sheet and the copper sheet forms a one-way valve, when the lubricating oil in the reflux groove 301 is too much and the vibration caused by the use of the device causes the copper sheet to shake, the lubricating oil in the reflux groove 301 higher than the limiting plate 304 can flow back, and when the device stands still, the lubricating oil can be prevented from flowing back into the reflux groove 301 by the lap joint of the two.
Working principle: before the axial flow fan with the built-in sealing assembly is used, the whole condition of the device needs to be checked firstly to ensure that normal work can be carried out, according to the method shown in fig. 1-5, firstly, in the process of rotating the driving shaft 102, the sealing sleeve 208 is closely attached to the driving shaft 102 and generates friction, so that abrasion is caused, gaps are generated, at the moment, the spiral elastic sheet 205 is loosened, the straight rod 202 is pulled to rotate through the sliding block 206, the threaded section 210 on the straight rod 202 is rotated in the threaded sleeve 203, then the straight rod 202 is lowered in the rotation, at the moment, the sliding block 206 slides in the sliding groove, and along with the lowering of the straight rod 202, the clamping ring 207 pushes the sealing sleeve 208 to be attached to the driving shaft 102 again;
In the process of rotating the driving shaft 102, if lubricating oil passes through the joint of the driving shaft 102 and the bearing seat 104, the lubricating oil is firstly adsorbed by the oil absorbing cotton 302 in the reflux groove 301 when moving into the closed shell 201, and when the lubricating oil in the oil absorbing cotton 302 is excessive, the lubricating oil can flow back into the bearing seat 104 through the reflux groove 301 under the action of gravity;
After the lubricating oil flows into the backflow groove 301, it is blocked by the limiting plate 304 first, and then when the number is large, it overflows from the gap between the backflow plate 303 and the limiting plate 304 to the bearing housing 104.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides an axial fan of built-in seal assembly, includes fan shell (1) to and install motor (101) on the inside right side of fan shell (1), the output fixedly connected with drive shaft (102) of motor (101), the output fixedly connected with fan (103) of drive shaft (102), the middle part cover of drive shaft (102) is equipped with bearing frame (104);
Characterized by further comprising:
The two ends of the bearing seat (104) are provided with sealing assemblies (2), and a reflux mechanism (3) is arranged in the bearing seat (104);
The sealing assembly (2) comprises a sealing shell (201) fixedly connected with two ends of a bearing seat (104), a straight rod (202) is symmetrically and threadedly connected to the side edge of the sealing shell (201), a clamping ring (207) is rotationally connected to the other end of the straight rod (202), a sealing sleeve (208) is fixedly connected to the inner side of the clamping ring (207), and a spiral elastic sheet (205) is slidably connected to the middle of the straight rod (202).
2. The axial flow fan with a built-in seal assembly according to claim 1, wherein: the outside fixedly connected with swivel nut (203) of enclosure (201), set up screw thread section (210) on straight-bar (202), screw thread section (210) and swivel nut (203) threaded connection, the middle part through connection of straight-bar (202) has fixed cover (204) with the inside fixed connection of enclosure (201).
3. The axial flow fan with a built-in seal assembly according to claim 2, wherein: the inside of fixed cover (204) is fixedly connected with one end of spiral shell fragment (205), the spout has been seted up at the middle part of straight-bar (202), the spout is vertically seted up on straight-bar (202), sliding connection has sliding block (206) on the spout, sliding block (206) are in the other end fixed connection of spiral shell fragment (205).
4. The axial flow fan with a built-in seal assembly according to claim 1, wherein: the two clamping rings (207) at the same end of the closed shell (201) are clamped in a staggered manner, and the two sealing sleeves (208) at the same end of the closed shell (201) are clamped in a staggered manner.
5. The axial flow fan with a built-in seal assembly according to claim 1, wherein: the inner side of the closed shell (201) is fixedly connected with water absorbing cotton (209), the water absorbing cotton (209) is located between the clamping ring (207) and the bearing seat (104), and the side edge of the clamping ring (207) is attached to the inner side edge of the closed shell (201).
6. The axial flow fan with a built-in seal assembly according to claim 1, wherein: the backflow mechanism (3) comprises a backflow groove (301), one end of the backflow groove (301) is located at the joint of the closed shell (201) and the bearing seat (104), and the other end of the backflow groove (301) stretches into the bearing seat (104).
7. The axial flow fan with a built-in seal assembly according to claim 6, wherein: the oil absorption cotton (302) is filled in one end of the reflux groove (301) close to the driving shaft (102), a reflux plate (303) is fixedly connected to the inner wall of the other end of the reflux groove (301), a limit plate (304) fixedly connected with the inner wall of the reflux groove (301) is lapped on the reflux plate (303), the limit plate (304) is made of steel sheets, and the reflux plate (303) is made of thin copper sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420328700.2U CN221628479U (en) | 2024-02-22 | 2024-02-22 | Axial flow fan with built-in sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420328700.2U CN221628479U (en) | 2024-02-22 | 2024-02-22 | Axial flow fan with built-in sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221628479U true CN221628479U (en) | 2024-08-30 |
Family
ID=92489354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420328700.2U Active CN221628479U (en) | 2024-02-22 | 2024-02-22 | Axial flow fan with built-in sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221628479U (en) |
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2024
- 2024-02-22 CN CN202420328700.2U patent/CN221628479U/en active Active
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