CN220505349U - Multistage high-pressure axial flow fan - Google Patents
Multistage high-pressure axial flow fan Download PDFInfo
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- CN220505349U CN220505349U CN202322206298.9U CN202322206298U CN220505349U CN 220505349 U CN220505349 U CN 220505349U CN 202322206298 U CN202322206298 U CN 202322206298U CN 220505349 U CN220505349 U CN 220505349U
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- flow fan
- axial flow
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- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of fans, in particular to a multistage high-pressure axial flow fan, which comprises a shell, wherein a driving shaft is rotatably arranged in the shell, the shell is provided with a driving mechanism connected with the driving shaft, the driving shaft is axially provided with a movable impeller assembly and a plurality of fixed impellers, the movable impeller assembly comprises conical blocks, the conical blocks are coaxially arranged on the driving shaft, a mounting ring is coaxially sleeved on the driving shaft, a friction ring matched with the conical blocks is arranged in the mounting ring, a movable ring is coaxially arranged on the outer side of the mounting ring, a bearing is arranged between the mounting ring and the movable ring, a telescopic mechanism is arranged between the movable ring and the inner wall of the shell, and the movable impellers are arranged on the outer side of the mounting ring. The utility model increases the pressure of the fan by adding the movable impeller component, and has the advantage of large wind pressure adjusting range.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a multistage high-pressure axial flow fan.
Background
The axial flow fan is a common air supply device for industrial and mining enterprises, the axial flow fan mainly comprises fan impellers and a shell, the multistage axial flow fan is an axial flow fan with a plurality of fan impellers, in steel-making enterprises, the axial flow fan is a device for supplying air to a blast furnace, the adjustment of the wind pressure of the existing axial flow fan is often realized by changing the rotating speed of the axial flow fan, the adjustment range of the wind pressure is smaller only by changing the rotating speed of the axial flow fan, and the multistage high-pressure axial flow fan with a large wind pressure adjustment range is particularly necessary to develop.
Disclosure of Invention
The utility model aims to provide a multistage high-pressure axial flow fan which has the advantage of large wind pressure adjusting range.
The technical scheme adopted is as follows:
the utility model provides a multistage high-pressure axial fan, which comprises a housing, the shell internal rotation is provided with the drive shaft, the shell is provided with the actuating mechanism who is connected with the drive shaft, the drive shaft is provided with a movable vane wheel subassembly and a plurality of impeller that decides along the axial, the movable vane wheel subassembly includes the conical block, the coaxial setting of conical block is on the drive shaft, coaxial cover is equipped with the collar in the drive shaft, be provided with the friction ring with the conical block adaptation in the collar, the collar outside is coaxial to be provided with and removes the ring, be provided with the bearing between collar and the removal ring, be provided with telescopic machanism between removal ring and the shell inner wall, the outside of collar is provided with movable vane wheel.
Preferably, a plurality of friction strips are uniformly arranged on the side surface of the conical block.
Preferably, a rubber pad is fixedly arranged in the friction ring.
Preferably, the telescopic mechanism comprises two pneumatic push rods, the pneumatic push rods are parallel to the driving shaft, the pneumatic push rods are connected with cross beams, and the cross beams are fixedly connected with the movable ring.
Preferably, the bearing comprises a tapered roller bearing.
Compared with the prior art, the beneficial effects are that:
the driving mechanism drives the driving shaft to rotate so as to drive each fixed impeller to rotate, when the wind pressure is required to be smaller, the telescopic mechanism is controlled to shorten so as to enable the friction ring to be separated from the conical block, the load of the driving mechanism is reduced so as to save energy, when the wind pressure is required to be increased, the rotating speed of the driving mechanism is increased so as to increase the wind pressure, when the wind pressure is required to be increased, the telescopic mechanism is controlled to extend so as to enable the friction ring to be pressed on the conical block, the conical block is utilized to drive the mounting ring to rotate, thereby realizing rotation of the fixed impellers, increasing the primary impellers so as to increase the wind pressure of the axial flow fan, and the wind pressure adjusting range of the axial flow fan is larger.
Drawings
FIG. 1 is a schematic view showing an internal perspective structure of a multistage high-pressure axial flow fan according to the present utility model,
figure 2 is a schematic diagram of the structure at a in figure 1,
figure 3 is an internal elevational structural schematic diagram of a multistage high pressure axial flow fan of the present utility model,
FIG. 4 is a schematic view showing the right-hand structure of the inside of a multistage high-pressure axial flow fan according to the present utility model,
in the figure: 1. the device comprises a shell, 2, a driving shaft, 3, a fixed impeller, 4, a conical block, 5, a friction strip, 6, a mounting ring, 7, a friction ring, 8, a movable ring, 9, a bearing, 10, a pneumatic push rod, 11, a cross beam, 12 and a movable impeller.
Detailed Description
The utility model is further described below in connection with specific embodiments, as shown in fig. 1 to 4:
example 1: the multistage high-pressure axial flow fan comprises a shell 1, wherein a driving shaft 2 is rotationally arranged in the shell 1, the shell 1 is provided with a driving mechanism connected with the driving shaft 2, and the driving mechanism is in the prior art and is not described herein; the driving mechanism drives the driving shaft 2 to rotate, the driving shaft 2 is axially provided with a movable impeller assembly and a plurality of fixed impellers 3, the driving shaft 2 rotates to drive each fixed impeller 3 to rotate, when the movable impeller assembly is not inserted, the rotating speed of the driving mechanism is changed to change the wind pressure of the axial flow fan,
the movable impeller assembly comprises a conical block 4, the conical block 4 is coaxially arranged on a driving shaft 2, a mounting ring 6 is coaxially sleeved on the driving shaft 2, a friction ring 7 matched with the conical block 4 is arranged in the mounting ring 6, a movable ring 8 is coaxially arranged outside the mounting ring 6, a bearing 9 is arranged between the mounting ring 6 and the movable ring 8, a telescopic mechanism is arranged between the movable ring 8 and the inner wall of the shell 1, the telescopic mechanism controls the movable ring 8 to move along the axial direction of the driving shaft 2, a movable impeller 12 is arranged outside the mounting ring 6,
when the impeller assembly is not needed to be inserted in the process of improving the wind pressure, the telescopic mechanism stretches to enable the friction ring 7 to be pressed on the conical block 4, the conical block 4 is utilized to drive the mounting ring 6 to rotate, so that the rotation of the fixed impeller 3 is realized, the primary impeller is increased, and the wind pressure of the axial flow fan is improved;
example 2: the multistage high-pressure axial flow fan comprises a shell 1, wherein a driving shaft 2 is rotationally arranged in the shell 1, the shell 1 is provided with a driving mechanism connected with the driving shaft 2, and the driving mechanism is in the prior art and is not described herein; the driving mechanism drives the driving shaft 2 to rotate, the driving shaft 2 is axially provided with a movable impeller assembly and a plurality of fixed impellers 3, the driving shaft 2 rotates to drive each fixed impeller 3 to rotate, when the movable impeller assembly is not inserted, the rotating speed of the driving mechanism is changed to change the wind pressure of the axial flow fan,
the dynamic impeller component comprises a conical block 4, the conical block 4 is coaxially arranged on a driving shaft 2, a plurality of friction strips 5 are uniformly arranged on the side surface of the conical block 4, a mounting ring 6 is coaxially sleeved on the driving shaft 2, a friction ring 7 matched with the conical block 4 is arranged in the mounting ring 6, a rubber pad is fixedly arranged in the friction ring 7, the friction strips 5 are pressed on the rubber pad, the friction force between the conical block 4 and the friction ring 7 is improved, slipping between the conical block 4 and the friction ring 7 is avoided,
the installation ring 6 outside is provided with the removal ring 8 coaxially, be provided with bearing 9 between installation ring 6 and the removal ring 8, bearing 9 includes tapered roller bearing, tapered roller bearing can bear great axial force, be provided with telescopic machanism between removal ring 8 and the shell 1 inner wall, telescopic machanism includes two pneumatic push rods 10, pneumatic push rods 10 all are parallel with drive shaft 2, pneumatic push rods 10 all are connected with crossbeam 11, crossbeam 11 all with remove ring 8 fixed connection, telescopic machanism control removes ring 8 along the axis direction of drive shaft 2, the outside of installation ring 6 is provided with movable impeller 12.
The specific working process is as follows: when the wind pressure is required to be small, the telescopic mechanism is controlled to be shortened, so that the friction ring 7 is separated from the conical block 4, the load of the driving mechanism is reduced, energy is saved, when the wind pressure is required to be improved, the rotating speed of the driving mechanism is improved, the wind pressure is improved, when the wind pressure is required to be continuously improved, the movable impeller assembly is not in-between, the telescopic mechanism is extended, so that the friction ring 7 is pressed on the conical block 4, the conical block 4 is utilized to drive the mounting ring 6 to rotate, the fixed impeller 3 is rotated, and the wind pressure of the axial flow fan is increased by increasing the primary impeller.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (5)
1. A multistage high pressure axial fan which characterized in that: including shell (1), shell (1) internal rotation is provided with actuating shaft (2), shell (1) is provided with the actuating mechanism who is connected with actuating shaft (2), actuating shaft (2) are provided with a movable vane wheel subassembly and a plurality of fixed vane wheel (3) along the axial, movable vane wheel subassembly includes conical block (4), conical block (4) coaxial setting is on actuating shaft (2), coaxial cover is equipped with collar (6) on actuating shaft (2), be provided with in collar (6) with conical block (4) adapted friction ring (7), collar (6) outside coaxial being provided with remove ring (8), be provided with bearing (9) between collar (6) and the remove ring (8), be provided with telescopic machanism between remove ring (8) and the shell (1) inner wall, the outside of collar (6) is provided with movable vane wheel (12).
2. The multi-stage high-pressure axial flow fan as claimed in claim 1, wherein: the side of the conical block (4) is uniformly provided with a plurality of friction strips (5).
3. The multi-stage high-pressure axial flow fan as claimed in claim 1, wherein: a rubber pad is fixedly arranged in the friction ring (7).
4. The multi-stage high-pressure axial flow fan as claimed in claim 1, wherein: the telescopic mechanism comprises two pneumatic push rods (10), the pneumatic push rods (10) are parallel to the driving shaft (2), the pneumatic push rods (10) are connected with cross beams (11), and the cross beams (11) are fixedly connected with the movable ring (8).
5. The multi-stage high-pressure axial flow fan as claimed in claim 1, wherein: the bearing (9) comprises a tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322206298.9U CN220505349U (en) | 2023-08-16 | 2023-08-16 | Multistage high-pressure axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322206298.9U CN220505349U (en) | 2023-08-16 | 2023-08-16 | Multistage high-pressure axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505349U true CN220505349U (en) | 2024-02-20 |
Family
ID=89874682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322206298.9U Active CN220505349U (en) | 2023-08-16 | 2023-08-16 | Multistage high-pressure axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505349U (en) |
-
2023
- 2023-08-16 CN CN202322206298.9U patent/CN220505349U/en active Active
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