CN217421610U

CN217421610U - Novel impeller for local ventilator

Info

Publication number: CN217421610U
Application number: CN202222126327.6U
Authority: CN
Inventors: 薛佳佳; 张慧文; 陈宝峰; 王恒星; 王凯; 杨云贤; 杨武军
Original assignee: Shanxi Yumeike Fan Manufacturing Co ltd
Current assignee: Shanxi Yumeike Fan Manufacturing Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2022-09-13
Anticipated expiration: 2032-08-12

Abstract

The utility model relates to a novel impeller for a local ventilator, belonging to the technical field of ventilator impellers; the radial plate comprises radial plates on two sides, the radial plates are of annular disc-shaped structures, a first through hole is formed in the center of each radial plate, a shaft disc of a cylindrical structure is arranged in the center between the two radial plates, bosses are respectively arranged on the end faces on the two sides of the shaft disc, the two bosses are respectively inserted into the first through holes of the two radial plates, a conical insertion hole is formed in the shaft disc, a shaft sleeve is inserted into the insertion hole, the outer side surface of the shaft sleeve is of a conical surface structure, an annular bulge is fixedly arranged at one end, with a large diameter, of the outer side surface of the shaft sleeve, a circle of fixture block is arranged at the edge of the outer side between the two radial plates, a blade is clamped in each fixture block, and the fixture blocks are fixedly connected with the radial plates, the shaft disc and the radial plates, and the shaft sleeve and the shaft disc through bolts; the problem of current local fan's impeller damage back be difficult for changing, more loaded down with trivial details when impeller and motor shaft exchange is solved.

Description

Novel impeller for local ventilator

Technical Field

The utility model belongs to the technical field of the ventilation blower impeller, concretely relates to a novel impeller for auxiliary ventilating fan.

Background

The existing impeller of the local ventilator for mining adopts an all-welded structure. Deformation is big during this structure welding, and welding dimension location is inaccurate, the blade angle can not be adjusted, and it wastes time and energy to eliminate welding stress and detect welding defect, and has some welding defect to be difficult for detecting out, and impeller operation a period back appears the blade condition of splitting easily, is difficult for changing the blade. The existing impeller structure has no interchangeability, and if the size of a motor shaft changes, the impeller cannot be used, and the impeller matched with the motor shaft needs to be manufactured again.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the prior art and provides a novel impeller for a local ventilator; the problem of current local fan's impeller damage back be difficult for changing, more loaded down with trivial details when impeller and motor shaft exchange is solved.

In order to achieve the purpose, the utility model is realized by the following technical scheme.

The utility model provides a novel impeller for auxiliary ventilating fan, the web including both sides, the web is annular discoid structure, web center department is provided with first via hole, center department between two webs is provided with the reel of cylindric structure, the both sides terminal surface punishment of reel do not is provided with a boss, two bosses are pegged graft respectively in the first via hole of two webs inside, the reel passes through the bolt looks fixed connection of a border with the web, the inside conical spliced eye that is provided with of reel, the inside axle sleeve that has pegged graft of spliced eye, the lateral surface of axle sleeve is conical surface structure, the fixed annular arch that is provided with of lateral surface major diameter one end of axle sleeve, the annular arch passes through the bolt looks fixed connection of a border with the reel, outside edge between two webs is provided with the round fixture block, the inside centre gripping of every fixture block has a blade, the fixture block passes through bolt and the web looks fixed connection of both sides.

Furthermore, the outer diameter of the shaft disc is larger than the inner diameter of the first through hole, and the end faces on the two sides of the shaft disc are respectively contacted with the inner side faces of the amplitude plates on the two sides.

Furthermore, the two webs are fixedly connected with the shaft disc through a circle of axially arranged bolts, the bolts are uniformly arranged along the outer peripheral rings of the left boss and the right boss respectively, and the bolts sequentially penetrate through the left web, the shaft disc and the right web and then are fixed through nuts, so that the shaft disc is fixedly connected with the webs on two sides.

Furthermore, a through mounting hole is formed in the shaft sleeve along the axis of the shaft sleeve, and a key groove is formed in the inner side face of the mounting hole along the axis direction of the mounting hole.

Furthermore, the shaft sleeve is of a disconnecting structure along the circumferential direction of the shaft sleeve, and one part of the shaft sleeve is provided with a disconnection.

Further, the center line of the latch is disposed along a radial direction of the web.

Furthermore, each clamping block comprises two clamping block single bodies which are symmetrically arranged, each clamping block single body is of a cubic structure, a semi-conical hole is formed in the end face of one side of each clamping block single body, and the axis of each semi-conical hole is overlapped with the center line of the end face of each clamping block single body.

Furthermore, the end faces of one side, provided with the half taper holes, of the two fixture block units are mutually attached, the two half taper holes form a complete taper hole, the axis of the taper hole is matched with the radial direction of the web, and the small-diameter opening of the taper hole faces towards one end of the outer side.

Furthermore, the blade is of a circular truncated cone-shaped structure, a coaxial anti-falling plate is arranged on the end face of the large diameter of the blade, and the outer diameter of the anti-falling plate is larger than that of one end of the large diameter of the blade.

Furthermore, each blade is inserted from one end of the large-diameter opening of the corresponding taper hole of the fixture block, so that the inner side end face of the anti-falling plate is contacted with the inner side end face of the fixture block, and the outer side conical surface of each blade is matched with the inner side conical surface of the taper hole of the fixture block.

The utility model discloses produced beneficial effect for prior art does:

the impeller provided by the utility model can be replaced simply and conveniently by only dismantling the bolts when the blades are damaged; and when changing the motor shaft of unidimensional, only need through demolising the bolt just can pull down the axle sleeve, then just can with the axle sleeve replacement of corresponding size install can, easy and simple to handle, the interchangeability is stronger, the maintenance cost is low.

Drawings

The invention will be described in further detail with reference to the accompanying drawings:

fig. 1 is a schematic structural view of the whole of the present invention;

FIG. 2 is a left side view of the utility model as a whole;

FIG. 3 is a right side view of the utility model in its entirety;

FIG. 4 is a sectional view A-A of FIG. 2;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

wherein, 1 is the web, 2 is the reel, 3 is the axle sleeve, 4 is the fixture block, 5 is the blade, 6 is first via hole, 7 is left boss, 8 is right boss, 9 is the spliced eye, 10 is the keyway, 11 is the fixture block monomer, 12 is the taper hole, 13 is the anticreep board.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve clearer and more obvious, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.

As shown in fig. 1-5, the utility model provides a novel impeller for local ventilator, which comprises a web 1, a shaft disc 2, a shaft sleeve 3, a clamping block 4 and blades 5.

The number of the webs 1 is two, and the webs are of annular disc-shaped structures. The two spokes (1) are coaxially arranged, a shaft disc (2) is arranged at the center between the two spokes (1), and a shaft sleeve (3) is inserted in the shaft disc (2); a clamping block 4 with one circle is arranged between the two webs 1, and a blade 5 is clamped inside the clamping block 4.

The center of the web 1 is provided with a first through hole 6, and the shaft disc 2 is positioned between the two first through holes 6. The shaft disc 2 is of a cylindrical structure, and the outer diameter of the shaft disc 2 is larger than the inner diameter of the first through hole 6. The central department of the two terminal surfaces of the shaft disc 2 is symmetrically provided with a left boss 7 and a right boss 8 respectively, the outer diameter of the left boss 7 and the right boss 8 is smaller than the inner diameter of the first through hole 6, the two terminal surfaces of the shaft disc 2 are respectively contacted with the inner side surfaces of the two webs 1, and the left boss 7 and the right boss 8 are respectively inserted into the first through hole 6 of the two webs 1. The shaft disc 2 is internally provided with a plug hole 9 along the axis thereof, the plug hole 9 penetrates through the left boss 7 and the right boss 8, the plug hole 9 is a tapered hole, and the inner diameter of an opening of the plug hole 9 on the left boss 7 is larger than that of an opening of the right boss 8.

The two webs 1 are fixedly connected with the shaft disc 2 through bolts arranged in the axial direction of one circle, the bolts are evenly arranged along the outer circumference of the left boss 7 and the outer circumference of the right boss 8 respectively, and the bolts sequentially penetrate through the left web 1, the shaft disc 2 and the right web 1 and then are fixed through nuts, so that the shaft disc 2 is fixedly connected with the webs 1 on the two sides.

The shaft sleeve 3 is of a circular truncated cone structure, the outer side face of the shaft sleeve is of a conical surface structure, an annular bulge is fixedly arranged at one end with the larger diameter of the outer side face, and a circle of bolt holes are uniformly formed in the end face of the annular bulge along the circle. The inside of the boss 3 is provided with a through mounting hole along its axis, and the inner side surface of the mounting hole is provided with a key groove 10 along its axis direction. The shaft sleeve 3 is of a breaking structure along the circumferential direction and is provided with a break. The shaft sleeve 3 is inserted into the plug-in hole 9 from the large-diameter opening of the shaft disc 2, so that the inner side end face of the annular bulge of the shaft sleeve 3 is contacted with the outer end face of the left boss 7 of the shaft disc 2, and the outer side conical surface of the shaft sleeve 3 is matched with the inner side conical surface of the plug-in hole 9.

The end face of the outer side of the left boss 7 of the shaft disc 2 is correspondingly provided with a circumferential threaded hole, and a bolt sequentially passes through the annular bulge of the shaft sleeve 3 and is in threaded connection with the threaded hole on the shaft sleeve 3, so that the shaft sleeve 3 is fixed on the shaft disc 2.

The clamping blocks 4 are uniformly arranged at the outer side edge between the two webs 1, and the center lines of the clamping blocks 4 are arranged along the radial direction of the webs 1.

Each fixture block 4 comprises two fixture block single bodies 11 which are symmetrically arranged, each fixture block single body 11 is of a cubic structure, a semi-conical hole is formed in one side end face of each fixture block single body, and the axis of each semi-conical hole is overlapped with the center line of the end face of each fixture block single body 11. The end faces of one side, provided with the half taper holes, of the two fixture block single bodies 11 are mutually attached, the two half taper holes form a complete taper hole 12, the axis of the taper hole 12 is matched with the radial direction of the web 1, and the small-diameter opening of the taper hole 12 faces to one end of the outer side. The end face of one side of the clamping plate monomer, which is far away from the semi-conical hole, is attached to the end face of the inner side of the web plate 1, each clamping block 4 is fixedly connected with the web plates 1 on the two sides through four bolts, and the bolts sequentially penetrate through the web plate 1 on the left side, the clamping blocks 4 and the web plate 1 on the right side and then are in threaded connection with nuts, so that the clamping blocks 4 on one circle are fixed on the web plates 1 on the two sides.

The blade 5 is a circular truncated cone-shaped structure, a coaxial anti-falling plate 13 is arranged on the end face of the large diameter of the blade, and the outer diameter of the anti-falling plate 13 is larger than that of one end of the large diameter of the blade 5. Each blade 5 is inserted from one end of the large-diameter opening of the corresponding taper hole 12 of the fixture block 4, so that the inner side end face of the anti-falling plate 13 is contacted with the inner side end face of the fixture block 4, and the outer side conical surface of each blade 5 is matched with the inner side conical surface of the taper hole 12 of the fixture block 4. One blade 5 is clamped and fixed by the two clamping block single bodies 11, so that the blade 5 is fixed on the impeller.

The integral structure of the impeller is adopted, and when the impeller is fixed, the installation can be completed only by sleeving the shaft sleeve 3 on the mandrel of the motor.

When the blade 5 needs to be replaced, the bolt is detached, the clamping block 4 is taken out, and the blade 5 can be replaced.

When the size of the matched motor changes, only the shaft sleeve 3 with the corresponding size needs to be replaced and fixed through a bolt, so that the operation is simple and convenient, the interchangeability is strong, and the maintenance cost is low.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A novel impeller for a local fan, characterized in that: comprises webs (1) at two sides, the webs (1) are of an annular disc-shaped structure, a first through hole (6) is formed in the center of the webs (1), a shaft disc (2) with a cylindrical structure is arranged at the center between the two webs (1), bosses are respectively arranged at the end faces at two sides of the shaft disc (2), the two bosses are respectively inserted into the first through holes (6) of the two webs (1), the shaft disc (2) is fixedly connected with the webs (1) through bolts at a circle, a conical insertion hole (9) is formed in the shaft disc (2), a shaft sleeve (3) is inserted into the insertion hole (9), the outer side face of the shaft sleeve (3) is of a conical surface structure, an annular bulge is fixedly arranged at one end of the large diameter of the outer side face of the shaft sleeve (3), the annular bulge is fixedly connected with the shaft disc (2) through bolts at a circle, a circle of fixture blocks (4) is arranged at the edge of the outer side between the two webs (1), a blade (5) is clamped in each clamping block (4), and the clamping blocks (4) are fixedly connected with the radial plates (1) on the two sides through bolts.

2. The new impeller for a local ventilator according to claim 1, characterized in that: the outer diameter of the shaft disc (2) is larger than the inner diameter of the first through hole (6), and the end surfaces of the two sides of the shaft disc (2) are respectively contacted with the inner side surfaces of the spokes (1) on the two sides.

3. The new impeller for a local ventilator according to claim 1, characterized in that: two spokes (1) and reel (2) are fixedly connected through a circle of axially arranged bolts, the bolts are uniformly arranged along the peripheral rings of the left boss (7) and the right boss (8), and the bolts sequentially penetrate through the spokes (1) on the left side, the reel (2) and the spokes (1) on the right side and then are fixed through nuts, so that the reel (2) is fixedly connected with the spokes (1) on the two sides.

4. The novel impeller for a local ventilator in accordance with claim 1, wherein: a through mounting hole is formed in the shaft sleeve (3) along the axis of the shaft sleeve, and a key groove (10) is formed in the inner side surface of the mounting hole along the axis direction of the shaft sleeve.

5. The novel impeller for a local ventilator in accordance with claim 1, wherein: the shaft sleeve (3) is of a disconnecting structure along the circumferential direction and is provided with a disconnection part.

6. The new impeller for a local ventilator according to claim 1, characterized in that: the center line of the fixture block (4) is arranged along the radial direction of the web (1).

7. The new impeller for a local ventilator according to claim 1, characterized in that: each clamping block (4) comprises two clamping block single bodies (11) which are symmetrically arranged, each clamping block single body (11) is of a cubic structure, a semi-conical hole is formed in the end face of one side of each clamping block single body, and the axis of each semi-conical hole is overlapped with the center line of the end face of each clamping block single body (11).

8. The novel impeller for a local ventilator in accordance with claim 7, wherein: the end faces of one side, provided with the semi-conical holes, of the two fixture block monomers (11) are mutually attached, the two semi-conical holes form a complete conical hole (12), the axis of the conical hole (12) is matched with the radial direction of the amplitude plate (1), and the small-diameter opening of the conical hole (12) faces towards one end of the outer side.

9. The novel impeller for a local ventilator in accordance with claim 8, wherein: the blade (5) is of a circular truncated cone-shaped structure, a coaxial anti-falling plate (13) is arranged on the end face of the large diameter of the blade, and the outer diameter of the anti-falling plate (13) is larger than the outer diameter of one end of the large diameter of the blade (5).

10. The new impeller for a local ventilator according to claim 9, characterized in that: each blade (5) is inserted from one end of the large-diameter opening of the corresponding taper hole (12) of the fixture block (4), so that the inner side end face of the anti-falling plate (13) is contacted with the inner side end face of the fixture block (4), and the outer side conical surface of each blade (5) is matched with the inner side conical surface of the taper hole (12) of the fixture block (4).