CN201386695Y

CN201386695Y - Tangential impeller

Info

Publication number: CN201386695Y
Application number: CN 200920117577
Authority: CN
Inventors: 高炎康; 胡修柏; 吴雁平
Original assignee: Ningbo Langdi Impeller Machinery Co Ltd
Current assignee: Ningbo Langdi Impeller Machinery Co Ltd
Priority date: 2009-04-13
Filing date: 2009-04-13
Publication date: 2010-01-20
Anticipated expiration: 2019-04-13

Abstract

The utility model relates to the field of tangential impellers for air-conditioners, in particular to a tangential impeller, which comprises blades and a circular central disc. A plurality of blade holes (2) are arranged on the circular central disc, the blade holes (2) are orderly arranged along the peripheral direction of the central disc (1), blades (1) are inserted in the blade holes (2) and arranged into a barrel shape along the periphery of the central disc (1), and connection positions of the blades (1) and the blade holes (2) are equipped with positioning fasteners (3). The tangential impeller has the advantages of fine balance property, long service life, high inserting production efficiency, low noise and the like.

Description

A kind of through-flow impeller

Technical field

The utility model relates to idle call through-flow impeller field.

Background technique

The through-flow impeller is the important spare part of cross flow fan.Existing through-flow impeller is made of blade and circular mid-game, and blade inserts in the vane hole in the circular mid-game and forms tubular along the circumferential arrangement of mid-game, during installation earlier blade through in the vane hole of mid-game then roll riveting fix.Shown in Fig. 1-2, vane hole 8 in the existing impeller mid-game is made up of arcuation wall and straight wall, the joint, two ends of arcuation wall and straight wall is a chamfering, head and the tail aperture, two ends is apart from minimum, when the insertion vane hole 8 of blade 7, the part of difficult insertion is exactly the two ends of blade 7, and after vane hole 8 was inserted in the bottom of blade 7, the 8 liang of chamfering places in blade 7 bottoms and vane hole contacted for putting.The defective that existing through-flow impeller exists is: 1. the situation different in size that may have blade 7 when blade 7 inserts mid-game 1, after roll riveting is fixing, the blade 7 of impeller will be out of shape, mid-game 1 can occur becoming flexible at long-time operation process and blade, destroy the balance of impeller, thereby cause impeller performance to descend, reduce working life.2. be subjected to the restriction of vane hole 8 shapes, the grafting speed of blade 7 is slow during installation, and efficient is low and be difficult to realize the grafting operation of mechanization; 3. the chamfering of blade 7 bottoms and vane hole 8 can not be fitted fully, impeller can produce regular noise because of the cycle collision of blade 7 bottoms and vane hole 8 chamferings in the running, and then influence the quiet requirement of product, in the field comparatively responsive to the wheel rotation noise, this defective is just particularly evident.

Summary of the invention

The purpose of this utility model is to have the technological deficiency that the through-flow impeller exists now in order to solve, and it is good to disclose a kind of balance quality, the through-flow impeller of long service life.

In order to realize above-mentioned purpose, the utility model has adopted following technological scheme:

A kind of through-flow impeller, comprise blade and circular mid-game, circular mid-game is provided with a plurality of vane holes, and vane hole is regularly arranged along the mid-game circumferencial direction, blade inserts in the vane hole and forms tubular along the circumferential arrangement of mid-game, and the joint with vane hole on the described blade is provided with the location buckle.

As preferably, described each vane hole is identical to the distance in the mid-game center of circle, and equidistant between any two adjacent blades holes.

As preferably, described location buckle is arranged on two salient points on the blade, and circular mid-game is stuck between two salient points.

As preferably, the salient point in the described circular mid-game outside and the thickness of blade addition are greater than the aperture distance of vane hole.

As preferably, described vane hole is made of upper end jack, middle part jack and lower end jack, and the shape of upper end jack and lower end jack is along vane hole center symmetry, the aperture distance of upper end jack and lower end jack is greater than the aperture distance at place, two ends about the jack of middle part, calibration and insertion are convenient in two ends about when blade inserts, improved the insertion speed of blade greatly, thereby improved manufacturing efficiency, and the vane hole of this structure goes for the grafting operation of mechanization.

As preferably, the top wall of described upper end jack and the bottom wall of lower end jack are straight wall, after blade inserts vane hole, the both ends of the surface up and down of blade contact with lower end jack face with the upper end jack respectively, promptly fit with straight wall, thereby when wheel rotation, relative movement can not take place between blade and blade jack, avoid the periodicity noise that therefore produces.

As preferably, a wall of described middle part jack is the arcuation wall, the bending of impeller roll riveting rear blade, and one of them flexure plane is fitted on the arcuation wall, has reduced the noise of impeller.

Owing to adopted a kind of through-flow impeller of above-mentioned technological scheme, blade is provided with the location buckle, blade blocks and can't enter again by the location buckle after inserting vane hole, guaranteed after the identical roll riveting of all length of blade indeformable, mid-game can not occur becoming flexible at long-time operation process, guaranteed the balance of impeller, thereby improved the performance and the working life of impeller.Advantage such as in sum, this through-flow impeller has that balance quality is good, long service life, grafting manufacturing efficiency height, noise are low.

Description of drawings

Fig. 1: the structural representation of existing through-flow impeller in the background technique.

Fig. 2: the structure for amplifying schematic representation at A place among Fig. 1.

Fig. 3: the utility model embodiment's structural representation.

Fig. 4: the structural representation of blade among the utility model embodiment.

The side structure schematic representation of Fig. 5: Fig. 4.

Fig. 6: the structural representation of mid-game among the utility model embodiment.

Fig. 7: the structure for amplifying schematic representation at C place among Fig. 6.

Fig. 8: the through-flow impeller cross-sectional view among the utility model embodiment.

Fig. 9: the structure for amplifying schematic representation at B place among Fig. 8.

Embodiment

Below in conjunction with accompanying drawing 3-9 embodiment of the present utility model is made a detailed explanation.

A kind of through-flow impeller shown in Fig. 3-9 is made of blade and circular mid-game.Circular mid-game is provided with a plurality of vane holes 2, and vane hole 2 is regularly arranged along mid-game 1 circumferencial direction, and blade 1 inserts in the vane hole 2 and forms tubular along the circumferential arrangement of mid-game 1.Each vane hole 2 is identical to the distance in mid-game 1 center of circle, and equidistant between any two adjacent blades holes 2.Joint with vane hole 2 on the blade 1 is provided with location buckle 3, location buckle 3 is arranged on two salient points on the blade 1, two salient points are when blade 6 cuts off processing, utilize die stamping to come out, circular mid-game 1 is stuck between two salient points, the salient point 31 in circular mid-game 1 outside and the aperture distance b of the thickness a of blade 6 additions greater than vane hole 2, block and can't enter again by locating buckle 3 when blade 6 inserts vane holes 2 back, guaranteed after the identical roll riveting of all blades 6 length indeformable.Vane hole 2 is made of upper end jack 21, middle part jack 22 and lower end jack 23, and the shape of upper end jack 21 and lower end jack 23 is along vane hole 2 center symmetries, the aperture distance L 1 of upper end jack 21 and lower end jack 23 is greater than the aperture distance L 2 at middle part jack place, two ends about in the of 22, calibration and insertion are convenient in two ends about when blade 6 inserts, improved the insertion speed of blade 6 greatly, thereby improved manufacturing efficiency, and the vane hole 2 of this structure goes for the grafting operation of mechanization.The top wall 24 of upper end jack 21 and the bottom wall of lower end jack 23 are straight wall, after blade 6 inserts vane hole 2, the both ends of the surface up and down of blade 6 contact with 23 of upper end jack 21 and lower end jacks respectively, promptly fit with straight wall, thereby when wheel rotation, relative movement can not take place in 2 of blade 6 and vane holes, avoided the periodicity noise that therefore produces, a wall 25 of middle part jack 22 is arcuation walls, 6 bendings of impeller roll riveting rear blade, one of them flexure plane is fitted on the arcuation wall 25, has reduced the noise of impeller.

Adopted the vane hole 2 of said structure, blade 6 can adopt artificial monolithic to insert the slotting blade 6 that blade 6 also can adopt the machinery automation with mid-game 1 assembling the time.The foregoing description only is a this patent mode of execution preferably, and the structure that all employing the technical program are described, feature and the variation on its spiritual principle, modification all belong to the protection domain of this patent.

Claims

1. through-flow impeller, comprise blade and circular mid-game, circular mid-game is provided with a plurality of vane holes (2), vane hole (2) is regularly arranged along mid-game (1) circumferencial direction, blade (1) inserts in the vane hole (2) and forms tubular along the circumferential arrangement of mid-game (1), it is characterized in that described blade (1) goes up joint with vane hole (2) and be provided with and locate buckle (3).

2. a kind of through-flow impeller according to claim 1 is characterized in that described each vane hole (2) is identical to the distance in mid-game (1) center of circle, and equidistant between any two adjacent blades holes (2).

3. a kind of through-flow impeller according to claim 1 and 2 is characterized in that described location buckle (3) is arranged on two salient points on the blade (1), and circular mid-game (1) is stuck between two salient points.

4. a kind of through-flow impeller according to claim 3, salient point (31) that it is characterized in that described circular mid-game (1) outside and the aperture distance (b) of the thickness (a) of blade (6) addition greater than vane hole (2).

5. a kind of through-flow impeller according to claim 4, it is characterized in that described vane hole (2) is made of upper end jack (21), middle part jack (22) and lower end jack (23), and the shape of upper end jack (21) and lower end jack (23) is along vane hole (2) center symmetry, and the aperture of upper end jack (21) and lower end jack (23) distance (L1) is greater than middle part jack (22) the aperture distance (L2) at place, two ends up and down.

6. a kind of through-flow impeller according to claim 5 is characterized in that the top wall (24) of described upper end jack (21) and the bottom wall of lower end jack (23) are straight wall.

7. a kind of through-flow impeller according to claim 5 is characterized in that a wall (25) of described middle part jack (22) is the arcuation wall.