CN208364485U - A kind of centrifugal blower inlet guide vane regulating mechanism - Google Patents
A kind of centrifugal blower inlet guide vane regulating mechanism Download PDFInfo
- Publication number
- CN208364485U CN208364485U CN201820921447.6U CN201820921447U CN208364485U CN 208364485 U CN208364485 U CN 208364485U CN 201820921447 U CN201820921447 U CN 201820921447U CN 208364485 U CN208364485 U CN 208364485U
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- guide vane
- back segment
- leading portion
- segment guide
- spiral casing
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Abstract
The utility model discloses a kind of centrifugal blower inlet guide vane regulating mechanisms, it include: inner spiral casing, outer spiral casing, cap, leading portion guide vane assembly and back segment guide vane assembly, when work, the one in back segment guide vane shaft is driven to rotate by shaft coupling by actuator, the rotation of the back segment guide vane shaft drives the rotation of drive ring, to drive the rotation of all guide vane shafts, achievees the purpose that adjust back segment guide vane corner.The utility model breaches traditional single blade water conservancy diversion, using fixed leading portion guide vane, rotate back segment guide vane, realize that tandem cascade formula guide vane is adjusted, flow separation of the air-flow at guide vane is weakened, in the case where guaranteeing that flow direction and flow to air-flow carry out adjustable situation, reduces guide vane bring aerodynamic loss, the efficiency for improving complete machine, reduces energy consumption.
Description
Technical field
The utility model belongs to blower technology field, more particularly to a kind of centrifugal blower inlet guide vane regulating mechanism.
Background technique
High-speed centrifugal blower is to adjust the flow direction and flow of air-flow by adjusting inlet guide vane angle, and air-flow flows through
When inlet guide vane, flow separation can be generated in guide vane pressure face and suction surface and blade trailing edge, so that by the stream of guide vane
Body generates aerodynamic loss, reduces the aeroperformance of complete machine, and bring noise pollution since blade surface separation is excessive, because
This weakens the flow separation at inlet guide vane, and it is necessary for improving centrifugal blower efficiency.Existing way is will be board-like
Guide vane is changed to aerofoil profile guide vane, but is changed to aerofoil profile guide vane does not improve how many aeroperformance, especially for S type air inlet runner
Centrifugal blower reduces the aerodynamic loss at guide vane and is not obvious.
Utility model content
To solve the above problems, the utility model proposes a kind of centrifugal blower inlet guide vane regulating mechanism,
The regulating mechanism fixes leading portion guide vane, rotates back segment guide vane, realizes that tandem cascade formula guide vane is adjusted, weakens air-flow at guide vane
Flow separation reduce guide vane bring aerodynamic loss in the case where guaranteeing to carry out adjustable situation to the flow direction and flow of air-flow,
The efficiency for improving complete machine, reduces energy consumption.
To achieve the goals above, the utility model uses following scheme, comprising:
Inner spiral casing, outer spiral casing, cap, leading portion guide vane assembly and back segment guide vane assembly,
The leading portion guide vane assembly includes conducting element, be circumferentially uniformly fixedly connected on the periphery wall of the conducting element it is several before
Section guide vane, the upper end of the leading portion guide vane is fixedly connected on the peripheral wall of inner spiral casing；
The back segment guide vane assembly includes the drive ring for the rotation of feeling relieved being sleeved on inner spiral casing outer peripheral surface, the drive ring
Outer peripheral surface on be evenly distributed drive ring pin shaft identical with leading portion guide vane quantity, which is embedded in drive ring and shakes
Sliding pair is formed in the U-shaped window of arm；It is circumferentially uniformly provided on the peripheral wall of the inner spiral casing identical with leading portion guide vane quantity
Through-hole, connects back segment guide vane axle sleeve in the through-hole, back segment guide vane shaft protrudes into after back segment guide vane axle sleeve be connected to back segment guide vane before
The other end at the top at end, the back segment guide vane shaft is connected to the other end of drive ring rocker arm and is fastened with screw；After described
It is fixedly connected with shaft coupling at the top of one in section guide vane shaft, which connects the output end of actuator.
The inner spiral casing outer peripheral surface is equipped with the groove of annular, and the side of the drive ring connects bearing, the bearing with it is interior
Annular groove on spiral case outer peripheral surface forms rolling pair.
The front end face of the leading portion guide vane is paraboloid, and the rear end face of the leading portion guide vane is circular arc concave surface, after described
The front end face of section guide vane is arc convex surface, the center of circle of the back segment guide vane arc convex surface and the center of circle weight of leading portion guide vane circular arc concave surface
It closes, the radius of the back segment guide vane arc convex surface is slightly less than the radius of leading portion guide vane circular arc concave surface, the back segment guide vane shaft
Axle center is overlapped with the center of circle of back segment guide vane front end arc convex surface, so that back segment guide vane is in rotation, the axle center of rotation and leading portion
The center of circle of guide vane circular arc concave surface is concentric.
Gap between the circular arc concave surface of leading portion guide vane rear end and the arc convex surface of back segment guide vane front end be 0.5mm extremely
1mm。
When work, the one in back segment guide vane shaft is driven to rotate by shaft coupling by actuator, the back segment guide vane shaft
Rotation drive the rotation of drive ring to achieve the purpose that adjust back segment guide vane corner to drive the rotation of all guide vane shafts.
The utility model breaches traditional single blade water conservancy diversion, using fixed leading portion guide vane, rotates back segment guide vane, realizes string
Column cascade type guide vane is adjusted, and weakens flow separation of the air-flow at guide vane, is guaranteeing that flow direction and the flow progress to air-flow can
In the case where adjusting, guide vane bring aerodynamic loss is reduced, the efficiency of complete machine is improved, reduces energy consumption.
Detailed description of the invention
Fig. 1 is the utility model stereochemical structure seperated schematic diagram.
Fig. 2 is the utility model section view schematic view of the front view.
Fig. 3 is the utility model sectional perspective structural schematic diagram.
Fig. 4 is the utility model section view overlooking structure diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, so that those skilled in the art can be more
Add and be clearly understood from, as shown in Figure 1, Figure 2, Figure 3, Figure 4, the utility model includes:
Inner spiral casing 1, outer spiral casing 2, cap 3, leading portion guide vane assembly and back segment guide vane assembly,
The leading portion guide vane assembly includes conducting element 4, is circumferentially uniformly fixedly connected on the periphery wall of the conducting element 4 several
Leading portion guide vane 5, the upper end of the leading portion guide vane 5 are fixedly connected on the peripheral wall of inner spiral casing 1；
The back segment guide vane assembly includes the drive ring 6 for the rotation of feeling relieved being sleeved on 1 outer peripheral surface of inner spiral casing, the driving
Drive ring pin shaft 7 identical with leading portion guide vane quantity is evenly distributed on the outer peripheral surface of ring 6, which is embedded in drive
Sliding pair is formed in the U-shaped window of rotating ring rocker arm 8；It is circumferentially uniformly provided on the peripheral wall of the inner spiral casing 1 and leading portion guide vane number
Measure identical through-hole, connect back segment guide vane axle sleeve in the through-hole, back segment guide vane shaft 9 protrudes into after back segment guide vane axle sleeve be connected to after
The top of 10 front end of section guide vane, the other end of the back segment guide vane shaft 9 are connected to the other end of drive ring rocker arm 8 and use screw
Fastening；It is fixedly connected with shaft coupling 12 at the top of one in the back segment guide vane shaft 9, which connects the defeated of actuator 13
Outlet.
1 outer peripheral surface of inner spiral casing is equipped with the groove of annular, and the side of the drive ring 6 connects bearing 11, the bearing
11 form rolling pair with the annular groove on 1 outer peripheral surface of inner spiral casing.
As the preferred embodiment of the utility model, the front end face of the leading portion guide vane 5 is paraboloid, which leads
The rear end face of leaf 5 is circular arc concave surface, and the front end face of the back segment guide vane 10 is arc convex surface, 10 arc convex surface of back segment guide vane
The center of circle be overlapped with the center of circle of 5 circular arc concave surface of leading portion guide vane, the radius of 10 arc convex surface of back segment guide vane, which is slightly less than leading portion, leads
The axle center of the radius of 5 circular arc concave surface of leaf, the back segment guide vane shaft 9 is overlapped with the center of circle of 10 front end arc convex surface of back segment guide vane,
So that back segment guide vane 10, in rotation, the center of circle in the axle center and 5 circular arc concave surface of leading portion guide vane of rotation is concentric.
As the preferred embodiment of the utility model, before the circular arc concave surface of 5 rear end of leading portion guide vane and back segment guide vane 10
Gap between the arc convex surface at end is 0.5mm to 1mm.
When work, the one in back segment guide vane shaft 9 is driven to rotate by shaft coupling 12 by actuator 13, the back segment guide vane
The rotation of shaft 9 drives the rotation of drive ring 6, to drive the rotation of all guide vane shafts 9, reaches 10 turns of back segment guide vane of adjusting
The purpose at angle.
The utility model breaches traditional single blade water conservancy diversion, using fixed leading portion guide vane, rotates back segment guide vane, realizes string
Column cascade type guide vane is adjusted, and weakens flow separation of the air-flow at guide vane, is guaranteeing that flow direction and the flow progress to air-flow can
In the case where adjusting, guide vane bring aerodynamic loss is reduced, the efficiency of complete machine is improved, reduces energy consumption.
Claims (4)
1. a kind of centrifugal blower inlet guide vane regulating mechanism comprising inner spiral casing (1), outer spiral casing (2), cap (3), feature
It is, the guide vane regulating mechanism further include:
Leading portion guide vane assembly and back segment guide vane assembly,
The leading portion guide vane assembly includes conducting element (4), is circumferentially uniformly fixedly connected on the periphery wall of the conducting element (4) several
The upper end of leading portion guide vane (5), the leading portion guide vane (5) is fixedly connected on the peripheral wall of inner spiral casing (1)；
The back segment guide vane assembly includes the drive ring (6) for the rotation of feeling relieved being sleeved on inner spiral casing (1) outer peripheral surface, the driving
Drive ring pin shaft (7) identical with leading portion guide vane quantity is evenly distributed on the outer peripheral surface of ring (6), the drive ring pin shaft (7) is embedding
Enter and forms sliding pair in the U-shaped window of drive ring rocker arm (8)；Circumferentially be uniformly provided on the peripheral wall of the inner spiral casing (1) with
The identical through-hole of leading portion guide vane quantity, the through-hole is interior to connect back segment guide vane axle sleeve, and back segment guide vane shaft (9) protrudes into back segment guide vane teunnion
The top of back segment guide vane (10) front end is connected to after set, the other end of the back segment guide vane shaft (9) is connected to drive ring rocker arm
(8) the other end is simultaneously fastened with screw；Shaft coupling (12) are fixedly connected at the top of one in the back segment guide vane shaft (9), it should
Shaft coupling (12) connects the output end of actuator (13).
2. guide vane regulating mechanism according to claim 1, it is characterised in that: inner spiral casing (1) outer peripheral surface is equipped with annular
Groove, the side of the drive ring (6) connects bearing (11), the bearing (11) with it is annular recessed on inner spiral casing (1) outer peripheral surface
Slot forms rolling pair.
3. guide vane regulating mechanism according to claim 1 or claim 2, it is characterised in that: the front end face of the leading portion guide vane (5) is ellipse
Circle paraboloid, the rear end face of the leading portion guide vane (5) are circular arc concave surface, and the front end face of the back segment guide vane (10) is arc convex surface,
The center of circle of back segment guide vane (10) arc convex surface is overlapped with the center of circle of leading portion guide vane (5) circular arc concave surface, the back segment guide vane
(10) radius of arc convex surface is slightly less than the radius of leading portion guide vane (5) circular arc concave surface, the axle center of the back segment guide vane shaft (9) with
The center of circle of back segment guide vane (10) front end arc convex surface is overlapped, so that back segment guide vane (10), in rotation, the axle center of rotation is with before
The center of circle of section guide vane (5) circular arc concave surface is concentric.
4. guide vane regulating mechanism according to claim 3, it is characterised in that: the circular arc concave surface of leading portion guide vane (5) rear end
Gap between the arc convex surface of back segment guide vane (10) front end is 0.5mm to 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820921447.6U CN208364485U (en) | 2018-06-14 | 2018-06-14 | A kind of centrifugal blower inlet guide vane regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820921447.6U CN208364485U (en) | 2018-06-14 | 2018-06-14 | A kind of centrifugal blower inlet guide vane regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364485U true CN208364485U (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820921447.6U Active CN208364485U (en) | 2018-06-14 | 2018-06-14 | A kind of centrifugal blower inlet guide vane regulating mechanism |
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| CN (1) | CN208364485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533528A (en) * | 2018-06-14 | 2018-09-14 | 安徽虎渡科达流体机械有限公司 | A kind of centrifugal blower inlet guide vane regulating mechanism |
| CN117662524A (en) * | 2024-01-29 | 2024-03-08 | 诺顿风机(潍坊)有限公司 | Movable vane adjustable axial flow fan with movable guide vane |
-
2018
- 2018-06-14 CN CN201820921447.6U patent/CN208364485U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533528A (en) * | 2018-06-14 | 2018-09-14 | 安徽虎渡科达流体机械有限公司 | A kind of centrifugal blower inlet guide vane regulating mechanism |
| CN117662524A (en) * | 2024-01-29 | 2024-03-08 | 诺顿风机(潍坊)有限公司 | Movable vane adjustable axial flow fan with movable guide vane |
| CN117662524B (en) * | 2024-01-29 | 2024-04-23 | 诺顿风机(潍坊)有限公司 | Movable vane adjustable axial flow fan with movable guide vane |
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