CN216478913U - Composite sealing device for centrifugal fan - Google Patents
Composite sealing device for centrifugal fan Download PDFInfo
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- CN216478913U CN216478913U CN202123029951.6U CN202123029951U CN216478913U CN 216478913 U CN216478913 U CN 216478913U CN 202123029951 U CN202123029951 U CN 202123029951U CN 216478913 U CN216478913 U CN 216478913U
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- bearing seat
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Abstract
The utility model relates to a composite sealing device for a centrifugal fan, belonging to the technical field of fan sealing, wherein a supporting seat is arranged below a bearing seat; the oil baffle disc is fixedly sleeved on the outer peripheral wall of the fan shaft; the labyrinth seal ring is fixedly arranged on the inner peripheral wall of the bearing seat; the annular sealing gaskets are respectively sleeved on the upper side and the lower side of the fan shaft, and the two annular sealing gaskets are spliced into an annular structure; the inner end of the threaded rod penetrates through the outer wall of the bearing seat and the ring wall of the labyrinth seal ring through threads and then is screwed on the outer side of the annular sealing gasket through a bearing; the sealing dustproof mechanism is arranged on the left side of the bearing seat; the sealing layer is arranged on the left side of the sealing dustproof mechanism; the shell is arranged on the left side of the sealing layer, and the left end of the fan shaft penetrates through the sealing dustproof mechanism and the sealing layer and then is arranged inside the shell; the fan bearing can be subjected to multiple sealing, the sealing effect is optimized, the service life of the sealing device is prolonged, the service cycle is prolonged, and the use of the fan is not influenced.
Description
Technical Field
The utility model relates to a fan seals technical field, concretely relates to composite sealing device for centrifugal fan.
Background
Centrifugal fan is a large class of general equipment of wide application in industrial production, and the bearing sealing device of current centrifugal fan adopts felt or asbestos board to seal mostly, and not only sealed effect is not good, and the durability is poor moreover, and life cycle is short to influence centrifugal fan's availability factor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a reasonable in design, convenient to use's a compound sealing device for centrifugal fan, can carry out multiple sealing to the fan bearing, optimize sealed effect, improved sealing device's life, prolonged life cycle, do not influence the use of fan.
In order to achieve the above purpose, the utility model adopts the following technical proposal: the fan shaft bearing comprises a fan shaft, a bearing and a bearing seat, wherein the right end of the fan shaft is rotatably arranged in the right side wall of the bearing seat through the fan bearing, and the left end of the fan shaft is arranged in the bearing seat in a penetrating manner;
it also includes:
the supporting seat is arranged below the bearing seat;
the oil baffle disc is fixedly sleeved on the outer peripheral wall of the fan shaft and is arranged inside the bearing block;
the labyrinth seal ring is fixedly arranged on the inner peripheral wall of the bearing seat, and the fan shaft is arranged in the labyrinth seal ring in a penetrating way;
the two annular sealing gaskets are respectively sleeved on the upper side and the lower side of the fan shaft, and the two annular sealing gaskets are spliced into an annular structure;
the inner end of the threaded rod penetrates through the outer wall of the bearing seat and the ring wall of the labyrinth seal ring through threads and then is screwed on the outer side of the annular sealing gasket through a bearing;
the sealing dustproof mechanism is arranged on the left side of the bearing seat;
the sealing layer is arranged on the left side of the sealing dustproof mechanism;
the casing, the casing setting in the left side of sealing layer, and the casing sets up with the sealing layer is inconsistent, the left end of fan axle passes behind sealed dustproof mechanism and the sealing layer, sets up the inside at the casing.
Preferably, the top surface of the supporting seat is fixedly provided with a non-slip mat.
Preferably, the left and right sides of supporting seat all fixedly be provided with the locating plate, the downside setting of bearing frame is between two locating plates.
Preferably, the outer ends of the threaded rods are fixedly provided with hand screws.
Preferably, the sealing and dust-proof mechanism comprises:
the fixed seat is arranged on the left side of the bearing seat;
the movable cover is movably arranged inside the fixed seat, and the sealing layer is fixedly arranged on the left side of the movable cover;
the two connecting springs are respectively and fixedly arranged on the right side of the movable cover in an up-down symmetrical mode, and the right ends of the connecting springs are fixedly arranged on the inner wall of the right side of the fixed seat;
and the two limiting bolts respectively penetrate through the upper side wall and the lower side wall of the fixing seat and then are abutted against the outer wall of the movable cover.
Preferably, the right side of the fixing seat is vertically symmetrically and fixedly provided with buckles, the left side of the bearing seat is vertically symmetrically provided with clamping grooves, and the buckles are respectively clamped in the clamping grooves.
Compared with the prior art, the beneficial effects of the utility model are that: a compound sealing device for centrifugal fan, can carry out multiple sealing to the fan bearing, optimize sealed effect, improve sealing device's life, prolonged life cycle, do not influence the use of fan, the utility model has the advantages of set up rationally, the cost of manufacture hangs down.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the internal structure of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 2.
Description of the reference numerals:
the fan shaft assembly comprises a fan shaft 1, a fan bearing 2, a supporting seat 3, an anti-slip pad 4, a positioning plate 5, a bearing seat 6, an oil baffle disc 7, a labyrinth seal ring 8, a threaded rod 9, a hand screw 10, an annular sealing gasket 11, a fixed seat 12, a buckle 13, a clamping groove 14, a limiting bolt 15, a connecting spring 16, a movable cover 17, a sealing layer 18, a shell 19 and a sealing dustproof mechanism 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the fan shaft comprises a fan shaft 1, a fan bearing 2 and a bearing seat 6, wherein the right end of the fan shaft 1 is rotatably arranged in the right side wall of the bearing seat 6 through the fan bearing 2, and the left end of the fan shaft 1 is arranged in the bearing seat 6 in a penetrating manner;
it also includes:
the supporting seat 3 is arranged below the bearing seat 6;
the oil baffle disc 7 is fixedly sleeved on the outer peripheral wall of the fan shaft 1 in a riveting mode, and the oil baffle disc 7 is arranged inside the bearing seat 6;
the labyrinth seal ring 8 is riveted and fixed on the inner peripheral wall of the bearing seat 6, and the fan shaft 1 is arranged in the labyrinth seal ring 8 in a penetrating way;
the two annular sealing gaskets 11 are respectively sleeved on the upper side and the lower side of the fan shaft 1, and the two annular sealing gaskets 11 are spliced into an annular structure;
the inner end of the threaded rod 9 penetrates through the outer wall of the bearing seat 6 and the ring wall of the labyrinth seal ring 8 through threads and then is screwed outside the annular seal gasket 11 through a bearing;
the sealing dustproof mechanism 20 is arranged on the left side of the bearing seat 6;
the sealing layer 18, the said sealing layer 18 is set up in the left side of the dustproof mechanism 20 of the seal;
and a housing 19, wherein the housing 19 is arranged on the left side of the sealing layer 18, the housing 19 is arranged in contact with the sealing layer 18, and the left end of the fan shaft 1 passes through the sealing dustproof mechanism 20 and the sealing layer 18 and then is arranged in the housing 19.
Preferably, the non-slip mat 4 is fixed on the top surface of the support seat 3 by glue, so as to improve the stability of the bearing seat 6 during operation.
Preferably, the left side and the right side of the support seat 3 are riveted with positioning plates 5, and the lower side of the bearing seat 6 is arranged between the two positioning plates 5.
Preferably, the outer ends of the threaded rods 9 are riveted with hand screws 10.
Preferably, the sealing and dust-proof mechanism 20 further includes:
the fixed seat 12 is arranged on the left side of the bearing seat 6;
the movable cover 17 is movably arranged in the fixed seat 12, and the sealing layer 18 is riveted and fixed on the left side of the movable cover 17;
the two connecting springs 16 are respectively riveted and fixed on the right side of the movable cover 17 in an up-down symmetrical mode, and the right ends of the two connecting springs 16 are riveted and fixed on the inner wall of the right side of the fixed seat 12;
and two limiting bolts 15 are arranged, and the two limiting bolts 15 respectively penetrate through the upper side wall and the lower side wall of the fixed seat 12 and then are abutted against the outer wall of the movable cover 17.
As an optimal scheme, furthermore, the right side of the fixed seat 12 is riveted and fixed with the buckles 13 in an up-and-down symmetrical manner, the left side of the bearing seat 6 is provided with the clamping grooves 14 in an up-and-down symmetrical manner, and the buckles 13 are respectively clamped in the clamping grooves 14, so that the fixed seat 12 and the bearing seat 6 can be conveniently connected and separated.
The working principle of the specific embodiment is as follows: before using, firstly, rotatory hand is twisted 10, hand is twisted 10 and is driven threaded rod 9 rotatory, threaded rod 9 drives cyclic annular sealed pad 11 and moves inwards, it sets up to contradicting annular sealed pad 11 and fan axle 1, cyclic annular sealed pad 11 splices annular setting this moment, the sealing performance of fan bearing 2 can be strengthened to cyclic annular sealed pad 11 and labyrinth seal 8, then establish buckle 13 card respectively in draw-in groove 14, remove sealing layer 18, sealing layer 18 drives and removes cover 17 and remove, tensile or shrink coupling spring 16, make sealing layer 17 and 19 conflict settings of casing, then utilize spacing bolt 15 will remove the rigidity of cover 17, during the use, oil baffle disc 7 follows fan axle 1 and rotates, can prevent that machine oil from flowing.
After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:
1. the annular sealing gasket 11 and the labyrinth sealing ring 8 are arranged, so that multiple sealing can be performed on the fan bearing 2, and the sealing effect is optimized;
2. the fixed seat 12, the limiting bolt 15, the connecting spring 16 and the movable cover 17 are convenient for adjusting the position of the sealing layer 18 according to the position of the shell 19;
3. a hand screw 10 is provided to facilitate rotation of the threaded rod 9.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A composite sealing device for a centrifugal fan comprises a fan shaft (1), a fan bearing (2) and a bearing seat (6), wherein the right end of the fan shaft (1) is rotatably arranged in the right side wall of the bearing seat (6) through the fan bearing (2), and the left end of the fan shaft (1) is arranged in the bearing seat (6) in a penetrating manner;
it is characterized in that it also comprises:
the supporting seat (3), the said supporting seat (3) is set up below the bearing bracket (6);
the oil baffle disc (7) is fixedly sleeved on the outer peripheral wall of the fan shaft (1), and the oil baffle disc (7) is arranged inside the bearing seat (6);
the labyrinth seal ring (8) is fixedly arranged on the inner peripheral wall of the bearing seat (6), and the fan shaft (1) penetrates through the labyrinth seal ring (8);
the two annular sealing gaskets (11) are respectively sleeved on the upper side and the lower side of the fan shaft (1), and the two annular sealing gaskets (11) are spliced into an annular structure;
the inner end of the threaded rod (9) penetrates through the outer wall of the bearing seat (6) and the ring wall of the labyrinth seal ring (8) through threads and then is screwed outside the annular seal gasket (11) through a bearing;
the sealing dustproof mechanism (20), the sealing dustproof mechanism (20) is arranged on the left side of the bearing seat (6);
the sealing layer (18), the said sealing layer (18) is set up in the left side of the dustproof mechanism (20) of the seal;
the fan shaft (1) comprises a shell (19), wherein the shell (19) is arranged on the left side of the sealing layer (18), the shell (19) is arranged in a mode of being abutted against the sealing layer (18), and the left end of the fan shaft (1) penetrates through the sealing dustproof mechanism (20) and the sealing layer (18) and then is arranged inside the shell (19).
2. A composite seal arrangement for a centrifugal fan according to claim 1, wherein: and the top surface of the supporting seat (3) is fixedly provided with an anti-skid pad (4).
3. A composite seal arrangement for a centrifugal fan according to claim 1, wherein: the left and right sides of supporting seat (3) all fixedly be provided with locating plate (5), the downside setting of bearing frame (6) is between two locating plates (5).
4. A composite seal arrangement for a centrifugal fan according to claim 1, wherein: the outer ends of the threaded rods (9) are fixedly provided with hand screws (10).
5. A composite seal arrangement for a centrifugal fan according to claim 1, wherein: the sealing dustproof mechanism (20) comprises:
the fixed seat (12), the said fixed seat (12) is set up in the left side of the bearing bracket (6);
the movable cover (17), the movable cover (17) is movably arranged in the fixed seat (12), and the sealing layer (18) is fixedly arranged on the left side of the movable cover (17);
the two connecting springs (16) are respectively and vertically symmetrically fixedly arranged on the right side of the movable cover (17), and the right ends of the connecting springs (16) are fixedly arranged on the inner wall of the right side of the fixed seat (12);
and the two limiting bolts (15) are respectively arranged and penetrate through the upper side wall and the lower side wall of the fixed seat (12) and then are abutted against the outer wall of the movable cover (17).
6. A compound seal arrangement for a centrifugal fan according to claim 5, wherein: the right side of the fixed seat (12) is provided with buckles (13) in an up-and-down symmetrical mode, the left side of the bearing seat (6) is provided with clamping grooves (14) in an up-and-down symmetrical mode, and the buckles (13) are respectively clamped in the clamping grooves (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123029951.6U CN216478913U (en) | 2021-12-06 | 2021-12-06 | Composite sealing device for centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123029951.6U CN216478913U (en) | 2021-12-06 | 2021-12-06 | Composite sealing device for centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478913U true CN216478913U (en) | 2022-05-10 |
Family
ID=81419462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123029951.6U Active CN216478913U (en) | 2021-12-06 | 2021-12-06 | Composite sealing device for centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478913U (en) |
-
2021
- 2021-12-06 CN CN202123029951.6U patent/CN216478913U/en active Active
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