CN210799048U

CN210799048U - High stability impeller

Info

Publication number: CN210799048U
Application number: CN201921971254.2U
Authority: CN
Inventors: 黄莹莹
Original assignee: SUZHOU TAIHU FAN MANUFACTURING CO LTD
Current assignee: SUZHOU TAIHU FAN MANUFACTURING CO LTD
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-06-19
Anticipated expiration: 2029-11-15

Abstract

The utility model belongs to the technical field of the impeller technique and specifically relates to a high stability impeller, include front shroud, back shroud and install a plurality of blades between the two, the middle part orientation of back shroud the reel is installed to one side of front shroud, the blade is the even fixed setting of annular circumference the front shroud with edge between the back shroud, the reel with install a plurality of pull rods between the front shroud, the one end of pull rod is connected to on the radial lateral wall of reel, the other end is the direction of outside expansion and is connected to on the front shroud, the reel with still be provided with reinforcing mechanism between the blade. The overall structure of the high-stability impeller has high stability, and the service life of the impeller can be prolonged.

Description

High stability impeller

Technical Field

The utility model relates to an impeller technical field especially relates to a high stability impeller.

Background

The impeller refers to a disk provided with moving blades, is a component of an impulse turbine rotor, and can also be a general name of the disk and the rotating blades arranged on the disk. The impellers can be classified according to shape and opening and closing conditions. The impeller structure among the prior art generally comprises front shroud, back shroud, a plurality of blade and reel, and in the rotation process of impeller, all drive the back shroud by the reel, and the back shroud drives the blade, and the blade drives the front shroud again, and this kind of impeller structure can cause impeller overall structure atress unreasonable, can increase the pressure load of each part junction to reduce the holistic stability of impeller, can shorten the life of impeller.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the current impeller structure that exists among the prior art and can causing the impeller overall structure atress unreasonable, can increase the pressure load of each part junction to reduce the holistic stability of impeller, can shorten the life's of impeller shortcoming, and the high stability impeller that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high stability impeller, includes front shroud, back shroud and installs a plurality of blades between the two, the middle part orientation of back shroud the reel is installed to one side of front shroud, the blade is the even fixed setting of annular circumference and is in the front shroud with edge between the back shroud, the reel with install a plurality of pull rods between the front shroud, the one end of pull rod is connected to on the radial lateral wall of reel, the other end is the direction that outside expansion is connected to on the front shroud, the reel with still be provided with reinforcing mechanism between the blade.

Further, strengthen the mechanism and include a plurality of strengthening rib and beaded finish, beaded finish fixed mounting is in a plurality of the blade is inboard, a plurality of the strengthening rib is the even fixed mounting in circumference on the shaft disc lateral wall bottom, a plurality of the strengthening rib with welded connection is in the same place between the beaded finish.

Furthermore, a plurality of reinforcing ribs and the reinforcing ring are of an integrated welding structure.

Further, the number of the blades is 24.

Furthermore, there are 3 pull rods, and one end of each pull rod is uniformly installed on the radial outer side part of the shaft disc at intervals along the same circumferential direction, and the other end of each pull rod is installed on the circumferential direction where the connection point of the blade and the front cover plate is located.

The utility model provides a pair of high stability impeller, beneficial effect lies in: this high stability impeller is through three pull rod of fixed connection evenly between reel and front shroud, three pull rod is with front shroud and reel lug connection, and this moment, make the blade, the higher triangle-shaped of stability has been formed between back shroud and the pull rod three, thereby impeller structure among the prior art drives the back shroud by the reel, the back shroud drives the blade, the blade drives the structure of front shroud again, turn into and drive back shroud and pull rod by the reel, the back shroud drives the blade again, the pull rod drives the front shroud, the front shroud can interact with the blade, make the pull rod, the front shroud, blade and back shroud can form the more reasonable rigidity of atress wholly, thereby the pressure load of each part junction has been reduced, and then the stability of impeller overall structure has been improved, the life of impeller has been prolonged.

Drawings

Fig. 1 is a schematic structural diagram of the high-stability impeller provided by the present invention.

Fig. 2 is a schematic view of the internal structure of fig. 1.

Fig. 3 is a side view of the structure of fig. 1.

Labeled as: the novel blade assembly comprises a front cover plate 1, a rear cover plate 2, blades 3, a first mounting hole 4, a shaft disc 5, a second mounting hole 6, a pull rod 7, reinforcing ribs 8, bolts 9 and a reinforcing ring 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, a high stability impeller, includes front shroud 1, back shroud 2 and a plurality of blade 3, and a plurality of blade 3 is the edge of evenly fixed setting between front shroud 1 and back shroud 2 of annular circumference, and here, the specific quantity of blade 3 is 24, and blade 3 is the arc form.

The rear cover plate 2 is close to 1 one side middle part of front cover plate and has a reel 5 through a plurality of bolt 9 fixed mounting, and second mounting hole 6 has been seted up at the middle part of reel 5, has seted up the first mounting hole 4 of a plurality of on the reel 5, installs a plurality of pull rod 7 between reel 5 and front cover plate 1, and the one end of pull rod 7 is connected to on the radial lateral wall of reel 5, the other end is the direction of outside expansion and is connected to on the front cover plate 1, and in this example, pull rod 7 has 3, all the one end of pull rod 7 is installed along the even spaced of same circumferencial direction on the radial outside portion of reel 5, the other end is installed blade 3 with the circumferencial direction at front cover plate 1 meeting point place. A reinforcing mechanism is fixedly arranged between the shaft disc 5 and the blades 3, three pull rods 7 are uniformly arranged between the shaft disc 5 and the front cover plate 1, the front cover plate 1 and the shaft disc 5 are directly connected by the three pull rods 7, and at the moment, a triangle with higher stability is formed among the blades 3, the rear cover plate 2 and the pull rods 7, so that the impeller structure in the prior art is characterized in that the rear cover plate 2 is driven by the shaft disc 5, the blades 3 are driven by the rear cover plate 2, the blades 3 drive the front cover plate 1, the structure of the front cover plate 1 is converted into a structure that the shaft disc 5 drives the rear cover plate 2 and the pull rods 7, the blades 3 are driven by the rear cover plate 2, the pull rods 7 drive the front cover plate 1, the front cover plate 1 can interact with the blades 3, the pull rods 7, the front cover plate 1, the blades 3 and the rear cover plate 2 can form a rigid whole with more reasonable stress, the pressure load at the joints of each part, the service life of the impeller is prolonged. Second mounting hole 6 is used for installing to external equipment on, if link to each other with driving motor's drive shaft, the first mounting hole 4 of a plurality of is used for with the utility model discloses a high stability impeller passes through screw or bolt etc. and external device locks.

Example 2

Referring to fig. 2-3, as another preferred embodiment of the present invention, the difference with embodiment 1 lies in that, the strengthening mechanism includes a plurality of strengthening rib 8 and strengthening ring 10, strengthening ring 10 fixed mounting is inboard at a plurality of blade 3, a plurality of strengthening rib 8 is the even fixed mounting in circumference on 5 lateral walls bottoms of hub, welded connection is in the same place between a plurality of strengthening rib 8 and the strengthening ring 10, a plurality of strengthening rib 8 and strengthening ring 10 formula welded structure as an organic whole, through the design of a plurality of strengthening rib 8 and strengthening ring 10, thereby can strengthen every blade 3's in the impeller steadiness, be favorable to improving this impeller stability of operation in-process.

The number of the pull rods 7 is 3, one end of each pull rod 7 is uniformly installed on the radial outer side part of the shaft disc 5 at intervals along the same circumferential direction, and the other end of each pull rod 7 is installed on the circumferential direction of the joint of the blade 3 and the front cover plate 1. The three pull rods 7 form a stable structure, so that the stability of the impeller in the operation process can be further improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high stability impeller, includes front shroud (1), back shroud (2) and installs a plurality of blades (3) between the two, the middle part orientation of back shroud (2) reel (5), its characterized in that are installed to one side of front shroud (1): blade (3) are the even fixed setting of annular circumference and are in front shroud (1) with edge between back shroud (2), reel (5) with install a plurality of pull rods (7) between front shroud (1), the one end of pull rod (7) is connected to on the radial lateral wall of reel (5), the other end is the direction of outside expansion and is connected to on front shroud (1), reel (5) with still be provided with reinforcing mechanism between blade (3).

2. The high stability impeller of claim 1, wherein: the strengthening mechanism comprises a plurality of strengthening ribs (8) and strengthening rings (10), wherein the strengthening rings (10) are fixedly installed on the inner sides of the blades (3) and a plurality of the strengthening ribs (8) are circumferentially uniformly and fixedly installed on the bottom of the side wall of the shaft disc (5) and are connected together in a welding mode between the strengthening ribs (8) and the strengthening rings (10).

3. The high stability impeller of claim 2, wherein: the reinforcing ribs (8) and the reinforcing ring (10) are of an integrated welding structure.

4. The high stability impeller of claim 1, wherein: the number of the blades (3) is 24.

5. The high stability impeller of claim 1, wherein: the number of the pull rods (7) is 3, one ends of all the pull rods (7) are uniformly installed on the radial outer side part of the shaft disc (5) at intervals along the same circumferential direction, and the other ends of the pull rods are installed on the circumferential direction where the connection point of the blade (3) and the front cover plate (1) is located.