CN205349850U

CN205349850U - Fan impeller

Info

Publication number: CN205349850U
Application number: CN201620155993.4U
Authority: CN
Inventors: 李锦标
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2016-06-29
Anticipated expiration: 2026-02-28

Abstract

The utility model discloses a fan impeller, fan impeller includes first rim plate and second rim plate, the center of first rim plate is equipped with first through -hole, and the evenly distributed on the surface of first rim plate has a plurality of main blade, a plurality of main blade is the radiation along the radius of first rim plate, be equipped with the louvre on the second rim plate, with first through -hole assorted second through -hole with set up a plurality of back blades at the second rim plate back, the second through -hole set up the center of second rim plate and with first through -hole phase -match, first rim plate and second rim plate fixed connection, fan impeller does not need complicated mould, and the structure is simplified, first rim plate with the second rim plate equipment can accomplish, the equipment mode is affect using effect not simply just.

Description

A kind of draught fan impeller

Technical field

This utility model relates to impeller manufacturing process field, is specifically related to a kind of draught fan impeller.

Background technology

Being currently used for the metallic impeller of aerator, generally comprise spider and be fixed on the blade of base plate, blade is uniformly distributed along the circumference of base plate, such as patent CN201310268357.3.The assembling mode of this type of impeller is for be riveted on blade one by one on base plate, become an impeller, so it is to ensure that blade can be fixedly mounted on base plate, and there is enough ruggedness, but so need first to prepare different moulds for multiple structures of impeller, and produce blade and base plate, assemble one by one again, this assembling mode cost of labor is big, long processing time, production efficiency is low, the mounting arrangement easily causing impeller is uneven, and blade is adopt the mode that point connects to fix with base plate, base plate to blade only to point support force, support force is weak, blade is easily deformed in operation, affect quality and the result of use of blower fan.

Utility model content

For the deficiencies in the prior art, the purpose of this utility model is in that to provide a kind of draught fan impeller, and the mould that this draught fan impeller need not be complicated, structure simplifies, and assembling mode simply and not affects result of use.

Realizing above-mentioned purpose, this utility model adopts the following technical scheme that a kind of draught fan impeller, including the first wheel disc and the second wheel disc；The center of described first wheel disc is provided with the first through hole, and the surface of the first wheel disc is evenly distributed with several primary blades；Described primary blades and the first wheel disc are formed in one structure；Several primary blades described arrange radially along the radius of the first wheel disc；Each primary blades described has identical deflection angle；Described second wheel disc is provided with louvre and the first through hole matches the second through hole and several back blades being arranged on the second wheel disc back side；The described louvre radius around the second through hole and along the second wheel disc arranges；Described second through hole is arranged on the center of the second wheel disc and matches with the first through hole；Several back blades described arrange radially along the radius of the second wheel disc；Described first wheel disc and the fixing connection of the second wheel disc；The back side of described first wheel disc and the surface of the second wheel disc fit.

The fixing connected mode of described first wheel disc and the second wheel disc includes but not limited to: gluing, welding, riveted joint, engaging and fastening.

As the preferred scheme of one of the present utility model: the fixing connected mode of described first wheel disc and the second wheel disc is for rivet by outer ring rivet；Preferably, described outer ring rivet is uniformly distributed along the edge circumference of the first wheel disc；First wheel disc and the second wheel disc are riveted by described outer ring rivet successively.

As the preferred scheme of one of the present utility model: the plane of each primary blades described is orthogonal with the surface of the first wheel disc.

As the preferred scheme of one of the present utility model: described back blades and the second wheel disc are formed in one structure.

As the preferred scheme of one of the present utility model: described draught fan impeller also includes protruding shaft；Described protruding shaft includes connecting portion and fixed part；Described connecting portion wears the first through hole and the second through hole；The back side of the second wheel disc is kept out and be fixed on to described fixed part.

The fixed part of described protruding shaft and the fixed form of the second wheel disc include but not limited to: glued, welding and riveted joint.

As the preferred scheme of one of the present utility model: the fixed part of described protruding shaft and the fixed form of the second wheel disc are for rivet by inner ring rivet；Preferably, circumferentially distributed along the first through hole of described inner ring rivet；First wheel disc, the second wheel disc and fixed part are riveted by described inner ring rivet successively.

As the preferred scheme of one of the present utility model: the primary blades of described first wheel disc is provided with buckling piece；Described buckling piece stretches out from the edge of primary blades；The fixing connected mode of described first wheel disc and the second wheel disc is for connect by buckling piece；Described buckling piece turns down backward and is fastened on the edge of the second wheel disc.

The beneficial effects of the utility model are in that:

1, the mould that draught fan impeller of the present utility model need not be complicated, structure simplifies, and the first wheel disc and the second wheel disc assemble and can complete, and assembling mode simply and not affects result of use；

2, draught fan impeller of the present utility model adopts the structure that the first wheel disc and the second wheel disc coordinate, the support to the first wheel disc strengthened by second wheel disc, the structure especially because primary blades and the first wheel disc are formed in one, folding line is formed between the surface of primary blades and the first wheel disc, laminating in conjunction with the first wheel disc and the second wheel disc, folding line is provided support force by the second wheel disc, the area of contact is bigger, primary blades is played good supporting role, overcome in prior art the hypodynamic problem of the support of primary blades, primary blades is unlikely to deform, and blower fan is more durable；

3, draught fan impeller of the present utility model is provided with back blades at the back side of the second wheel disc, dries backward during running, and motor is dispelled the heat；

4, the first wheel disc and the second wheel disc are connected by draught fan impeller of the present utility model preferably by outer ring rivet or buckling piece；When the junction point of the first wheel disc and the second wheel disc is positioned at edge, moment is the longest, and the conjugation between the first wheel disc and the second wheel disc is higher, when the first wheel disc rotates, it is possible to uniformly transfers rotatory force and drives the second wheel disc to rotate.

Accompanying drawing illustrates:

Fig. 1 is the explosive view of the draught fan impeller of this utility model embodiment 1；

Fig. 2 is the draught fan impeller structure schematic diagram of this utility model embodiment 2；

Wherein, the 1, first wheel disc；11, the first through hole；12, primary blades；13, buckling piece；2, the second wheel disc；21, louvre；22, the second through hole；23, back blades；3, protruding shaft；31, connecting portion；32, fixed part；4, outer ring rivet；5, inner ring rivet.

Detailed description of the invention

Specific embodiment:

Embodiment 1

With reference to Fig. 1, present embodiment discloses a kind of draught fan impeller, including the first wheel disc the 1, second wheel disc 2 and protruding shaft 3；The center of described first wheel disc 1 is provided with the first through hole 11, and the plane of the first wheel disc 1 is evenly distributed with several primary blades 12；Described primary blades 12 and the first wheel disc 1 are formed in one structure；Several primary blades 12 described arrange radially along the radius of the first wheel disc 1；Each primary blades 12 described has identical deflection angle；The plane of each primary blades 12 described is orthogonal with the surface of the first wheel disc 1.

Described second wheel disc 2 is provided with louvre 21 and the first through hole 11 matches the second through hole 22 and several back blades 23 being arranged on second wheel disc 2 back side；The described louvre 21 radius around the second through hole 22 and along the second wheel disc 2 arranges；Described second through hole 22 is arranged on the center of the second wheel disc 2 and matches with the first through hole 11；Several back blades 23 described arrange radially along the radius of the second wheel disc 2；Described first wheel disc 1 is fixing with the second wheel disc 2 to be connected；The back side of described first wheel disc 1 and the surface of the second wheel disc 2 fit.

The fixing connected mode of described first wheel disc 1 and the second wheel disc 2 is for rivet by outer ring rivet 4；Described outer ring rivet 4 is evenly distributed along the edge circumference of the first wheel disc 1；First wheel disc 1 and the second wheel disc 2 are sequentially riveted by described outer ring rivet 4.

Described protruding shaft 3 includes connecting portion 31 and fixed part 32；Described connecting portion 31 wears the first through hole 11 and the second through hole 22；The back side of the second wheel disc 2 is kept out and be fixed on to described fixed part 32；The fixed part 32 of described protruding shaft 3 and the fixed form of the second wheel disc 2 are for rivet by inner ring rivet 5；Preferably, circumferentially distributed along the first through hole 11 of described inner ring rivet 5；First wheel disc the 1, second wheel disc 2 and fixed part 32 are riveted by described inner ring rivet 5 successively.

Starting motor, the output shaft of motor is connected with protruding shaft 3, drives draught fan impeller to rotate, the wind that primary blades 12 on first wheel disc 1 produces blows out from air outlet, second wheel disc 2 rotates simultaneously, makes back blades 23 produce wind and blow to the motor at second wheel disc 2 back side, motor is dispelled the heat.

Embodiment 2

With reference to Fig. 2, being characterized in that of the present embodiment: the fixing connected mode of described first wheel disc 1 and the second wheel disc 2 is for connect by buckling piece 13；Described buckling piece 13 is arranged in the primary blades 12 of the first wheel disc 1；Described buckling piece 13 stretches out from the edge of primary blades 12；Described buckling piece 13 turns down and is fastened on the edge of the second wheel disc 2 backward.All the other structure and featuress are identical with embodiment 1.

The present embodiment, without punching press nail, is fixed without outer ring rivet 4, is utilized the buckling piece 13 on the first wheel disc 1 to be connected with the second wheel disc 2, and packaging efficiency is higher.

For a person skilled in the art, can technical scheme as described above and design, make other various corresponding changes and deformation, and all these change and deformation all should belong within this utility model scope of the claims.

Claims

1. a draught fan impeller, it is characterised in that include the first wheel disc and the second wheel disc；The center of described first wheel disc is provided with the first through hole, and the surface of the first wheel disc is evenly distributed with several primary blades；Described primary blades and the first wheel disc are formed in one structure；Several primary blades described arrange radially along the radius of the first wheel disc；Each primary blades described has identical deflection angle；Described second wheel disc is provided with louvre and the first through hole matches the second through hole and several back blades being arranged on the second wheel disc back side；The described louvre radius around the second through hole and along the second wheel disc arranges；Described second through hole is arranged on the center of the second wheel disc and matches with the first through hole；Several back blades described arrange radially along the radius of the second wheel disc；Described first wheel disc and the fixing connection of the second wheel disc；The back side of described first wheel disc and the surface of the second wheel disc fit.

2. draught fan impeller as claimed in claim 1, it is characterised in that: the plane of each primary blades described is orthogonal with the surface of the first wheel disc.

3. draught fan impeller as claimed in claim 1, it is characterised in that: described back blades and the second wheel disc are formed in one structure.

4. draught fan impeller as claimed in claim 1, it is characterised in that: described draught fan impeller also includes protruding shaft；Described protruding shaft includes connecting portion and fixed part；Described connecting portion wears the first through hole and the second through hole；The back side of the second wheel disc is kept out and be fixed on to described fixed part.

5. draught fan impeller as claimed in claim 1, it is characterised in that: the primary blades of described first wheel disc is provided with buckling piece；Described buckling piece stretches out from the edge of primary blades；The fixing connected mode of described first wheel disc and the second wheel disc is for connect by buckling piece；Described buckling piece turns down backward and is fastened on the edge of the second wheel disc.