CN210068573U - Improved conical core body of D-type centrifugal fan circular adjusting door - Google Patents
Improved conical core body of D-type centrifugal fan circular adjusting door Download PDFInfo
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- CN210068573U CN210068573U CN201920829451.4U CN201920829451U CN210068573U CN 210068573 U CN210068573 U CN 210068573U CN 201920829451 U CN201920829451 U CN 201920829451U CN 210068573 U CN210068573 U CN 210068573U
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- centrifugal fan
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Abstract
The utility model belongs to the technical field of the fan, specifically say and relate to an improved generation centrum body of circular regulation door of D formula centrifugal fan. The main technical scheme is as follows: this improved generation awl body structure is including setting up in the inside awl body pipe of adjusting the door, awl body pipe upper portion sets up the water conservancy diversion hood, set up a plurality of pivot tip male locating holes that supply rotatory fan-shaped blade on the pipe shaft of awl body pipe, be located set up a plurality of mounting holes that are used for fixed stay rod tip on the pipe shaft of locating hole top and/or below. The improved conical core body has the characteristics of simple design, convenience in manufacturing, high structural strength and long service life.
Description
Technical Field
The utility model belongs to the technical field of the fan, specifically say and relate to an improved generation centrum body of circular regulation door of D formula centrifugal fan.
Background
The centrifugal fan is a machine which increases the gas pressure and discharges the gas by means of the input mechanical energy, and the cone core body is an important part of an air inlet adjusting door of the D-type centrifugal fan. The traditional cone core body is made of cast iron materials and is of a split structure, and the manufacturing process comprises a series of process steps of appearance casting and processing of a spigot, a shaft hole and a threaded hole.
The utility model with the patent number of CN201620958312.8 discloses a detachable ventilator petal type adjusting door cone core body group, which is composed of a front cone core body, a rear cone core body and a gland which are positioned and connected through a spigot, and a spring washer is pressed into a whole through a hexagon head bolt, so that compared with other prior art, a split structure is still kept, and the whole stability is reduced; the circular port that has the fixed blade spindle nose is processed to preceding cone center body and the middle joint position of back cone center body, needs to customize the processing, has increased manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a design is simple, make convenient, structural strength is high and long service life's improved generation awl heart body of D formula centrifugal fan circular adjustment door.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a D formula centrifugal fan circular adjustment door's improved generation awl heart body which characterized in that: including setting up in the inside core body pipe of awl of regulation door, core body pipe upper portion sets up the water conservancy diversion hood, set up a plurality of rotatory fan-shaped blade's of confession pivot tip male locating hole on the pipe shaft of core body pipe, be located set up a plurality of mounting holes that are used for fixed stay rod tip on the pipe shaft of locating hole top and/or below.
The additional technical characteristics of the improved conical body for forming the D-type centrifugal fan circular adjusting door further comprise:
the mounting hole is arranged above the positioning hole and has a raise angle and/or the mounting hole is arranged below the positioning hole and has a hold-down angle symmetrical to the raise angle, and the mounting hole is positioned in the middle of two adjacent positioning holes;
the guide hood is of a convex spherical structure, and the lower edge of the guide hood is connected with the upper end edge of the conical core body circular tube through full welding;
the diversion hood is provided with a plurality of diversion trenches extending from the top center of the spherical surface to the edge;
the lower end of the conical body circular tube is provided with a plugging bottom plate, and the plugging bottom plate is connected with the lower end edge of the conical body circular tube through multi-point plug welding;
a support frame body is arranged inside the conical body circular tube, the support frame body comprises a central rod, and two groups of a plurality of diagonal draw bars connected with the inner wall of the conical body circular tube are symmetrically arranged in the middle of the central rod;
and the upper end and the lower end of the support frame body are provided with ring bodies or circular plates connected with the end parts of the inclined pull rods, and the ring bodies or the circular plates are used for supporting the inner wall of the conical core body circular tube.
The utility model provides an improved generation awl heart body of D formula centrifugal fan circular adjustment door compares with prior art, has following advantage: the improved conical body has the advantages that the improved conical body is a conical body round pipe, the pipe body is provided with a positioning hole for inserting the end part of the rotating shaft of the rotating fan-shaped blade and a mounting hole for fixing and supporting the end part of the pull rod, the improved conical body round pipe has the advantages of being simple in design and fast to machine, an existing metal pipeline can be selected as the conical body round pipe, materials are convenient to obtain, and casting cost is avoided; secondly, because locating hole and mounting hole all set up on the core body pipe, the component of a whole that can function independently equipment has been avoided to formula structure as an organic whole, and bulk strength is high, and core body pipe upper portion sets up the water conservancy diversion hood, can be integrated into one piece, also can adopt the welding, can obviously reduce the windage, avoids the noise, and equipment operation is more stable, long service life.
Drawings
Fig. 1 is the utility model relates to a structural schematic diagram of the improved generation awl heart body of D formula centrifugal fan circular adjustment door.
Detailed Description
The structure and the working principle of the improved conical body of the D-type centrifugal fan circular adjusting door provided by the present invention are further described in detail with reference to the accompanying drawings.
As shown in fig. 1, for the utility model provides a structural schematic diagram of the improved generation cone core body of D formula centrifugal fan circular adjustment door, only show in fig. 1 that the locating hole 5 top sets up the situation of mounting hole 7. The structure that constitutes this improved generation awl heart body sets up the guide blast cap 3 including setting up in the inside awl heart body pipe 2 of adjusting door 1, 2 upper portions of awl heart body pipe, sets up a plurality of pivots 41 tip male locating holes 5 that supply rotatory fan-shaped blade 4 on the pipe shaft of awl heart body pipe 2, sets up a plurality of mounting holes 7 that are used for the 6 tip of fixed stay pull rod on the pipe shaft that is located locating hole 5 top and/or below.
The working principle is as follows: according to the production specification of D formula centrifugal fan circular adjustment door 1, select current metal tubular product as core body pipe 2, 2 upper portions of core body pipe set up water conservancy diversion hood 3, be used for reducing windage and noise at the operation, set up a plurality of locating holes 5 on the pipe shaft of core body pipe 2, supply the 41 tip of pivot of rotatory fan-shaped blade 4 to insert, can satisfy air damper's size, be located and set up a plurality of mounting holes 7 on the pipe shaft of locating hole 5 top and/or below, be used for fixed stay pull rod 6 tip, the other end of support pull rod 6 and the interior wall connection of core body pipe 2, the structural strength of core body pipe 2 has been improved.
In the structure of the improved conical body for forming the D-type centrifugal fan circular adjusting door 1,
in order to enhance the stability of the conical body circular tube 2 and improve the supporting strength of the supporting pull rod 6, the mounting hole 7 is arranged above the positioning hole 5 and has a uplift angle and/or the mounting hole 7 is arranged below the positioning hole 5 and has a depression angle symmetrical to the uplift angle, so that a conical supporting frame is formed, higher air inlet pressure can be borne, the conical body circular tube 2 is firmer, the mounting hole 7 is positioned between two adjacent positioning holes 5, and the fan-shaped blades 4 cannot be cut and rubbed against the supporting pull rod 6 when being opened and closed;
in order to reduce the wind resistance of the conical body circular tube 2, the flow guide hood 3 is of a convex spherical structure, the lower edge of the flow guide hood 3 is connected with the upper edge of the conical body circular tube 2 through full welding, and therefore the conical body circular tube is simple to machine and manufacture and low in running noise;
preferably, a plurality of diversion trenches extending from the top center of the spherical surface to the edge are arranged on the diversion funnel cap 3;
in order to prevent the conical body circular tube 2 from deforming, the lower end of the conical body circular tube 2 is provided with the plugging bottom plate 8, the plugging bottom plate 8 is connected with the lower end edge of the conical body circular tube 2 through multi-point plug welding, and the plugging bottom plate 8 can support the conical body circular tube 2, so that the rotating shaft 41 of the rotating fan-shaped blade 4 and the support pull rod 6 are prevented from damaging the appearance of the conical body circular tube 2 in the stress process, and the connection is firmer;
as a best implementation mode, the supporting frame body 9 is arranged inside the conical body circular tube 2, the supporting frame body 9 includes a central rod 91, the middle of the central rod 91 is symmetrically provided with two groups of several diagonal draw bars 92 connected with the inner wall of the conical body circular tube 2, the supporting frame body 9 supports the conical body circular tube 2 from inside to outside, and it is ensured that the connecting structure between the conical body circular tube 2 and the rotating shaft 41 of the rotating fan-shaped blade 4 and the supporting draw bar 6 is stable;
preferably, the upper and lower ends of the support frame 9 are provided with annular bodies or circular plates 93 connected with the ends of the diagonal draw bars 92, and the annular bodies or circular plates 93 are used for supporting the inner wall of the conical body circular tube 2, so that the support frame 9 can form relatively independent parts, and forms a detachable structure with the conical body circular tube 2, thereby facilitating processing, manufacturing, installation and use.
Claims (7)
1. The utility model provides a D formula centrifugal fan circular adjustment door's improved generation awl heart body which characterized in that: including setting up in the inside core body pipe of awl of regulation door, core body pipe upper portion sets up the water conservancy diversion hood, set up a plurality of rotatory fan-shaped blade's of confession pivot tip male locating hole on the pipe shaft of core body pipe, be located set up a plurality of mounting holes that are used for fixed stay rod tip on the pipe shaft of locating hole top and/or below.
2. The improved cone core body of the D-type centrifugal fan circular adjusting door of claim 1, wherein: the mounting hole sets up the top of locating hole and have the raise angle and/or the mounting hole sets up the below of locating hole and have with the raise angle symmetry down restrain the angle, the mounting hole is located adjacent two the centre of locating hole.
3. The improved cone core body of the D-type centrifugal fan circular adjusting door of claim 1, wherein: the flow guide hood is of a convex spherical structure, and the lower edge of the flow guide hood is connected with the upper end edge of the conical core body circular tube through full welding.
4. The improved cone core body of the D-type centrifugal fan circular adjusting door of claim 3, wherein: the guide hood is provided with a plurality of guide grooves extending from the center of the top of the spherical surface to the edge.
5. The improved cone core body of the D-type centrifugal fan circular adjusting door of claim 1, wherein: the lower end of the conical core body circular tube is provided with a plugging bottom plate, and the plugging bottom plate is connected with the lower end edge of the conical core body circular tube through multi-point plug welding.
6. The improved cone core body of the D-type centrifugal fan circular adjusting door of any one of claims 1 to 5, wherein: the support body is arranged in the conical core body circular tube and comprises a central rod, and the middle of the central rod is symmetrically provided with two groups of oblique pull rods connected with the inner wall of the conical core body circular tube.
7. The improved cone core body of the D-type centrifugal fan circular adjusting door of claim 6, wherein: and the upper end and the lower end of the support frame body are provided with a ring body or a circular plate connected with the end part of the diagonal draw bar, and the ring body or the circular plate is used for supporting the inner wall of the conical core body circular tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829451.4U CN210068573U (en) | 2019-06-04 | 2019-06-04 | Improved conical core body of D-type centrifugal fan circular adjusting door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920829451.4U CN210068573U (en) | 2019-06-04 | 2019-06-04 | Improved conical core body of D-type centrifugal fan circular adjusting door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068573U true CN210068573U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920829451.4U Active CN210068573U (en) | 2019-06-04 | 2019-06-04 | Improved conical core body of D-type centrifugal fan circular adjusting door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068573U (en) |
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2019
- 2019-06-04 CN CN201920829451.4U patent/CN210068573U/en active Active
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