CN203655707U - Metal centrifugal impeller - Google Patents
Metal centrifugal impeller Download PDFInfo
- Publication number
- CN203655707U CN203655707U CN201320889041.1U CN201320889041U CN203655707U CN 203655707 U CN203655707 U CN 203655707U CN 201320889041 U CN201320889041 U CN 201320889041U CN 203655707 U CN203655707 U CN 203655707U
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- Prior art keywords
- metal
- chassis
- blade
- blades
- metal chassis
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- Expired - Lifetime
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- 239000002184 metal Substances 0.000 title claims abstract description 148
- 238000009423 ventilation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model relates to the field of ventilation equipment. A metal centrifugal impeller comprises a metal front ring, a metal chassis, and multiple metal blades fixed therebetween. Rear folding edges and the metal chassis are in fixed connection via rivets. The outer side surface of the metal chassis is provided with multiple L-shaped supports that match the metal blades in quantity. Multiple auxiliary blades are arranged on the outer side surface of the metal chassis to form a circular ring. The auxiliary blades are arranged on the outer side surface of the metal chassis in the same way as the metal blades are arranged on the inner side surface of the metal chassis in terms of arrangement shape. Vertically, the auxiliary blades and the metal blades overlap back and forth in terms of position. The advantages are that the metal centrifugal impeller has a novel structure, enables the connection between the metal chassis and the metal blades to be high in strength, and is improved in air output without changes of the dimension of the impeller.
Description
Technical field
The utility model relates to ventilation equipment field, relates in particular to a kind of metal centrifugal impeller.
Background technique
Metal centrifugal impeller is the conventional product in ventilation equipment field, and its structure comprises before metal circle, metal chassis and be fixed on multiple metal blades between the two, and metal chassis and metal blade generally all adopt rivet to fix.When use, centrifugal impeller is assemblied in the shell of blower fan, between the outer side surface of metal chassis and the madial wall of flow blower casing, leave certain distance, between the outer side surface of metal chassis and the madial wall of flow blower casing, also there is certain air quantity, in existing Fan Product the air quantity of this part be unordered and direction uncontrolled, easily flow to from wind out between adjacent blades the loss that causes air quantity between the outer side surface of metal chassis and the madial wall of flow blower casing in addition.Metal chassis in the market and metal blade generally all adopt rivet to fix, the too small degree of being connected firmly that easily causes of power of riveting in process engineering is inadequate, excessive riveted joint place at metal chassis of the power local deformation of easily causing metal chassis of riveted joint, affects the efficiency of air-out.In sum, the deficiency that existing metal centrifugal impeller exists is that air output has loss, and difficulty of processing is large.
Summary of the invention
The purpose of this utility model is the deficiency existing in order to solve existing metal centrifugal impeller, and a kind of novel structure is provided, and metal chassis and metal blade join strength are high, easy to process, does not change under the prerequisite of impeller size and has increased air output.
In order to realize above-mentioned object, the utility model has adopted following technological scheme:
Metal centrifugal impeller, comprise metal front circle, metal chassis and be fixed on multiple metal blades between the two, one end of metal blade is provided with the rear flanging being connected as a single entity with it, and rear flanging is connected on the inner side surface of metal chassis, and rear flanging is fixedly connected with by rivet with metal chassis; The outer side surface of metal chassis is provided with multiple L-type supports that quantity is mated with metal blade, the back blades that L-type support is connected as a single entity by fixed plate with it forms, and rivet is fixed on L-type support and metal blade on metal chassis through fixed plate, metal chassis and rear flanging; Multiple back blades are arranged and are ring on metal chassis outer side surface, and the spread geometry of back blades on metal chassis outer side surface is identical with the spread geometry of metal blade on metal chassis inner side surface; Metal blade before the corresponding metal of back blades on each L-type support between circle and metal chassis, air intake angle angle between adjacent metal blade corresponding to He Yuqi position, air intake angle between adjacent pair blade is identical, and the air-out angle angle between adjacent metal blade corresponding to He Yuqi position, air-out angle between adjacent pair blade is identical; Described metal blade cross section is curved, longitudinally goes up back blades and overlaps with before and after metal blade position.
As preferably, the other end of metal blade is provided with the front flanging being connected as a single entity with it, and front flanging is connected on the inner side surface of circle before metal, front flanging with before metal, enclose and be fixedly connected with by rivet.
Described fixed plate is with vertical with back blades.
As preferably, described metal blade cross section is curved, longitudinally goes up back blades and overlaps with front and rear part, metal blade position.
Adopt the metal centrifugal impeller of above-mentioned technological scheme, the rear flanging of fixed plate on metal chassis and metal blade plays the effect of reinforcing when fixing, not only make the Du Genggao that is connected firmly of metal chassis and metal blade, can prevent the distortion of metal chassis, and fixed plate is also for the installation of back blades simultaneously, the spread geometry of back blades on metal chassis outer side surface is identical with the spread geometry of metal blade on metal chassis inner side surface, ensure that the air outlet angle between air-out direction and angle and the adjacent metal blade between the outer side surface of metal chassis and the madial wall of flow blower casing is consistent, improve the efficiency of air-out, avoid occurring the loss of air quantity, especially between adjacent metal blade, out distinguished and admirable can be blocked by L-type support to time between the outer side surface of metal chassis and the madial wall of flow blower casing, and along the angle of inclination of back blades to outflow, do not have the loss of air quantity completely.In sum, the advantage of this metal centrifugal impeller is novel structure, and metal chassis and metal blade join strength are high, easy to process, reduced as much as possible the loss of air quantity, increased the air output of metal centrifugal impeller under the prerequisite that does not change impeller size, utilization efficiency is higher.
Brief description of the drawings
Fig. 1: the utility model embodiment's metal centrifugal impeller forward direction structural representation.
Fig. 2: the utility model embodiment's the backward structural representation of metal centrifugal impeller.
Embodiment
Below in conjunction with accompanying drawing 1 and Fig. 2, embodiment of the present utility model is made a detailed explanation.
Metal centrifugal impeller as depicted in figs. 1 and 2, comprise the front circle 1 of metal, metal chassis 3 and be fixed on multiple metal blades 2 between the two, one end of metal blade 2 is provided with the rear flanging 21 being connected as a single entity with it, rear flanging 21 is connected on the inner side surface of metal chassis 3, and rear flanging 21 is fixedly connected with by rivet 5 with metal chassis 2.The other end of metal blade 2 is provided with the front flanging 22 being connected as a single entity with it, and front flanging 22 is connected on the inner side surface of the front circle 1 of metal, and front flanging 22 is fixedly connected with by rivet 6 with circle 1 before metal.Rivet 5 is all identical with rivet 6 dimensional structures, is stainless steel self-plugging rivet.
The outer side surface of metal chassis 3 is provided with multiple L-type supports 4 that quantity is mated with metal blade 2, and L-type support 4 is made up of fixed plate 42 and the back blades 41 that is connected as a single entity with it, and fixed plate 42 is with vertical with back blades 41.Rivet 6 is fixed on L-type support 4 and metal blade 2 on metal chassis 3 through fixed plate 42, metal chassis 3 and rear flanging 21.
Longitudinally upper back blades 41 overlaps with before and after metal blade 2 positions, metal blade 2 cross sections are curved, back blades 41 cross sections are rectangular, back blades 41 is to partially overlap or substantially overlap with metal blade 2, be that the spread geometry of back blades 41 on metal chassis 3 outer side surfaces is not only identical with the spread geometry of metal blade 2 on metal chassis 3 inner side surfaces, and substantially along metal chassis 3 symmetries, air-out direction, angle and position are in full accord, on the outer side surface of metal chassis 3, form orderly air-out by back blades 41, and produce a part of air quantity, and between adjacent metal blade 2, out distinguished and admirable can be blocked by L-type support 4 to time between the outer side surface of metal chassis 3 and the madial wall of flow blower casing, and along the angle of inclination of back blades 41 to outflow, do not have the loss of air quantity completely.Under the prerequisite that does not change impeller size, the air output of the metal centrifugal impeller of this patent promotes 2%-4% with respect to the metal centrifugal impeller air output of conventional structure.
Claims (4)
1. metal centrifugal impeller, comprise metal front circle, metal chassis and be fixed on multiple metal blades between the two, the one end that it is characterized in that metal blade is provided with the rear flanging being connected as a single entity with it, rear flanging is connected on the inner side surface of metal chassis, and rear flanging is fixedly connected with by rivet with metal chassis; The outer side surface of metal chassis is provided with multiple L-type supports that quantity is mated with metal blade, the back blades that L-type support is connected as a single entity by fixed plate with it forms, and rivet is fixed on L-type support and metal blade on metal chassis through fixed plate, metal chassis and rear flanging; Multiple back blades are arranged and are ring on metal chassis outer side surface, and the spread geometry of back blades on metal chassis outer side surface is identical with the spread geometry of metal blade on metal chassis inner side surface; Metal blade before the corresponding metal of back blades on each L-type support between circle and metal chassis, air intake angle angle between adjacent metal blade corresponding to He Yuqi position, air intake angle between adjacent pair blade is identical, and the air-out angle angle between adjacent metal blade corresponding to He Yuqi position, air-out angle between adjacent pair blade is identical; Described metal blade cross section is curved, longitudinally goes up back blades and overlaps with before and after metal blade position.
2. metal centrifugal impeller according to claim 1, is characterized in that the other end of metal blade is provided with the front flanging being connected as a single entity with it, and front flanging is connected on the inner side surface enclosing before metal, and front flanging is fixedly connected with by rivet with circle before metal.
3. metal centrifugal impeller according to claim 1, is characterized in that described fixed plate is with vertical with back blades.
4. according to the metal centrifugal impeller described in claim 1 or 2 or 3, it is characterized in that longitudinally going up back blades and overlap with front and rear part, metal blade position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889041.1U CN203655707U (en) | 2013-12-30 | 2013-12-30 | Metal centrifugal impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889041.1U CN203655707U (en) | 2013-12-30 | 2013-12-30 | Metal centrifugal impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655707U true CN203655707U (en) | 2014-06-18 |
Family
ID=50922098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889041.1U Expired - Lifetime CN203655707U (en) | 2013-12-30 | 2013-12-30 | Metal centrifugal impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655707U (en) |
-
2013
- 2013-12-30 CN CN201320889041.1U patent/CN203655707U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |