CN215486795U

CN215486795U - Impeller

Info

Publication number: CN215486795U
Application number: CN202120890815.7U
Authority: CN
Inventors: 吴伟
Original assignee: Zhejiang Jiutong Machinery Technology Co Ltd
Current assignee: Zhejiang Jiutong Machinery Technology Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2022-01-11
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses an impeller, which belongs to the technical field of impellers and comprises an impeller seat, a plurality of impeller blades and a cover plate assembly, wherein the impeller seat and the cover plate assembly are arranged face to face, and a connecting rod is fixed between the impeller seat and the cover plate assembly; the connecting rod is vertical to the space between the impeller seat and the cover plate component; one side of the impeller blade is hinged with the connecting rod; connecting pieces for fixing the impeller blades are arranged between the impeller blades and the impeller seat and/or the cover plate component. After one side of the impeller blade is hinged with the connecting rod, one side of the impeller blade opposite to the connecting rod can rotate around the hinged side, so that the aim of adjusting the angle of the impeller blade is fulfilled. After the angle adjustment is finished, the impeller blades are fixedly connected with the impeller seat or/and the cover plate assembly, so that the angle of the impeller blades is not changed when the impeller blades work, and the stability of the impeller blades is ensured.

Description

Impeller

Technical Field

The utility model belongs to the technical field of impellers, and particularly relates to an impeller.

Background

Impellers, as a relatively common component, are often found in fans. Impellers are generally classified into radial type impellers, backward type impellers and forward type impellers according to the angle of the blades. In the three impeller categories, even the same impeller type, the angle of the blades is not exactly the same, since different flow requirements need to be met. However, since the conventional impellers are basically integrally formed, the angles of the blades cannot be adjusted. In the prior art, in order to meet different flow requirements, a method of replacing an impeller is often adopted. This requires the preparation of a plurality of impellers to meet different practical requirements, which increases the use cost of the impellers. Moreover, the whole impeller replacement is very troublesome, and wastes time and labor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an impeller, aiming at solving the technical problem that the angle of a blade of a common impeller can not be adjusted in the prior art.

An impeller comprises an impeller seat, a plurality of impeller blades and a cover plate assembly, wherein the impeller seat and the cover plate assembly are arranged face to face, and a connecting rod is fixed between the impeller seat and the cover plate assembly; the connecting rod is vertical to the space between the impeller seat and the cover plate component; one side of the impeller blade is hinged with the connecting rod; connecting pieces for fixing the impeller blades are arranged between the impeller blades and the impeller seat and/or the cover plate component.

The utility model has the following beneficial effects: after one side of the impeller blade is hinged with the connecting rod, one side of the impeller blade opposite to the connecting rod can rotate around the hinged side, so that the aim of adjusting the angle of the impeller blade is fulfilled. After the angle adjustment is finished, the impeller blades are fixedly connected with the impeller seat or/and the cover plate assembly, so that the angle of the impeller blades is not changed when the impeller blades work, and the stability of the impeller blades is ensured.

Further, the cover plate assembly comprises a first cover plate, a second cover plate and a third cover plate. One end of the connecting rod is fixedly connected with the impeller seat, and the other end of the connecting rod is fixedly connected with the first cover plate. The second cover plate is sleeved outside the first cover plate in a ring mode, and the third cover plate is sleeved outside the second cover plate in a ring mode; the second cover plate is rotatably connected with the first cover plate, and the second cover plate is rotatably connected with the third cover plate.

The second cover plate and the third cover plate are both annular cover plates; a first sliding groove is formed in the periphery of the first cover plate; the side of the second cover plate facing the first cover plate is provided with a first convex part, and the side of the second cover plate facing the third cover plate is provided with a second convex part; a second sliding groove is formed in the periphery of the third cover plate facing the second cover plate; first convex part sliding connection is in first spout, and second convex part sliding connection is in the second spout.

Through the sliding of the first convex part in the first sliding groove and the sliding of the second convex part in the second sliding groove, the second cover plate can smoothly rotate around the first cover plate when being positioned between the first cover plate and the third cover plate.

Furthermore, a support column is arranged between the third cover plate and the impeller seat, one end of the support column is fixedly connected with the impeller seat, and the other end of the support column is fixedly connected with the third cover plate. The third cover plate is fixed with the impeller seat, and the first cover plate is fixed with the impeller seat, so that a space between the first sliding chute and the second sliding chute jointly forms a track for the second cover plate to rotate.

Furthermore, a first groove is formed in the end face, facing the second cover plate, of the impeller blade, and a convex block is fixed on the end face, facing the impeller blade, of the second cover plate; the projection is connected with the first groove in a sliding mode.

When one side of the impeller blade is hinged and the other side of the impeller blade is not fixed, the lug can slide in the first groove only by rotating the second cover plate, so that the impeller blade is driven to rotate, and the function of adjusting the angles of all the impeller blades simultaneously is realized.

When one side of the impeller blade is hinged and the other side is fixed, the lug cannot slide in the first groove because the impeller blade is fixed, so that the impeller blade cannot be driven to rotate, namely, the angle of the impeller blade is fixed.

Furthermore, the end face, back to the impeller blades, of the second cover plate is provided with second grooves, and the second grooves are distributed in an array mode along the circumferential direction of the second cover plate. The second groove can be convenient for operating personnel to stretch into with finger or other instrument, then rotate the second apron.

Furthermore, the connecting piece comprises a first screw, a plurality of first through hole groups are arranged on the impeller seat, and the first through hole groups are distributed in an array mode along the circumferential direction of the impeller seat; the first through hole group comprises a plurality of first connecting holes; one side of the impeller blade, which is hinged with the connecting rod, is a fixed end, and the other opposite side is a movable end; the first connecting holes are distributed in an array along the circumferential direction formed by rotating the movable end around the fixed end; the first screw penetrates through the first connecting hole to be in threaded connection with the impeller blade. The number of the first through hole groups is equal to the number of the impeller blades, and the fixed connection position of each impeller blade is ensured.

Furthermore, the connecting piece also comprises a second screw, a plurality of second through hole groups are arranged on the third cover plate, and the second through hole groups are distributed in an array manner along the circumferential direction of the third cover plate; the second through hole group comprises a plurality of second connecting holes; one side of the impeller blade, which is hinged with the connecting rod, is a fixed end, and the other opposite side is a movable end; the second connecting holes are distributed in an array along the circumferential direction formed by rotating the movable end around the fixed end; the second screw passes through the second connecting hole and is in threaded connection with the impeller blade. The number of the second through hole groups is equal to the number of the impeller blades, and the fixed connection position of each impeller blade is ensured.

Drawings

Fig. 1 is a schematic structural diagram of an impeller according to an embodiment of the present invention.

Fig. 2 is a first schematic view of an internal structure of an impeller according to an embodiment of the present invention.

Fig. 3 is a schematic view of an internal structure of an impeller according to an embodiment of the present invention.

Fig. 4 is a schematic view of an internal structure of an impeller according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a second cover plate according to an embodiment of the utility model.

Fig. 6 is a bottom view of fig. 5.

Fig. 7 is a side view of the interior of an impeller in accordance with an embodiment of the present invention.

The impeller comprises an impeller seat 1, impeller blades 2, a cover plate 3, a connecting rod 4, a support column 5, a first through hole group 11, a first connecting hole 12, a first screw 13, a first groove 21, a first cover plate 31, a second cover plate 32, a third cover plate 33, a first sliding groove 311, a first convex part 321, a second convex part 322, a convex part 323, a second groove 324, a second sliding groove 331, a second sliding groove 332, a second through hole group 333, a second connecting hole 334 and a second screw.

Detailed Description

The utility model is described in further detail below with reference to the figures and the embodiments.

Referring to fig. 1 and 2, an impeller comprises an impeller seat 1, a plurality of impeller blades 2 and a cover plate assembly 3, wherein the impeller seat 1 and the cover plate assembly 3 are arranged face to face, and a connecting rod 4 is fixed between the impeller seat 1 and the cover plate assembly 3; the connecting rod 4 is vertical to the space between the impeller seat 1 and the cover plate component 3; one side of the impeller blade 2 is hinged with the connecting rod 4; connecting pieces for fixing the impeller blades 2 are arranged between the impeller blades 2 and the impeller seat 1 and/or the cover plate component 3. The connecting piece is fixed on the side of the impeller blade 2 opposite to the connecting rod 4.

After one side of the impeller blade 2 is hinged with the connecting rod 4, one side of the impeller blade 2 opposite to the connecting rod 4 can rotate around the hinged side, so that the aim of adjusting the angle of the impeller blade 2 is fulfilled. After the angle adjustment is finished, the impeller blades 2 are fixedly connected with the impeller seat 1 or/and the cover plate assembly 3, so that the angle of the impeller blades 2 is ensured not to change when the impeller blades 2 work, and the stability of the impeller blades 2 is ensured.

The cover plate assembly 3 includes a first cover plate 31, a second cover plate 32, and a third cover plate 33; one end of the connecting rod 4 is fixedly connected with the impeller seat 1, and the other end is fixedly connected with the first cover plate 31. The second cover plate 32 is annularly sleeved on the outer side of the first cover plate 31, and the third cover plate 33 is annularly sleeved on the outer side of the second cover plate 32; the second cover plate 32 is rotatably connected to the first cover plate 31, and the second cover plate 32 is rotatably connected to the third cover plate 33.

Referring to fig. 3 to 6, the second cover plate 32 and the third cover plate 33 are both annular cover plates; a first sliding groove 311 is arranged on the periphery of the first cover plate 31; the second cover plate 32 is provided with a first convex portion 321 on the peripheral side facing the first cover plate 31, and a second convex portion 322 on the peripheral side facing the third cover plate 33; the third cover plate 33 is provided with a second sliding chute 331 on the peripheral side facing the second cover plate 32; the first protrusion 321 is slidably connected in the first sliding slot 311, and the second protrusion 322 is slidably connected in the second sliding slot 331.

The sliding of the first protrusion 321 in the first sliding slot 311 and the sliding of the second protrusion 322 in the second sliding slot 331 enable the second cover 32 to smoothly rotate around the first cover 31 when the second cover 32 is located between the first cover 31 and the third cover 33.

A supporting column 5 is arranged between the third cover plate 33 and the impeller seat 1, one end of the supporting column 5 is fixedly connected with the impeller seat 1, and the other end is fixedly connected with the third cover plate 33. The third cover plate 33 is fixed to the impeller seat 1, and the first cover plate 31 is fixed to the impeller seat 1, so that the space between the first sliding slot 311 and the second sliding slot 331 forms a track for the second cover plate 32 to rotate.

The end surface of the impeller blade 2 facing the second cover plate 32 is provided with a first groove 21, and the end surface of the second cover plate 32 facing the impeller blade 2 is fixed with a convex block 323; the projection 323 is slidably coupled with the first groove 21.

When one side of the impeller blade 2 is hinged and the other side is not fixed, the projection 323 can slide in the first groove 21 only by rotating the second cover plate 32, so as to drive the impeller blade 2 to rotate, and realize the function of adjusting the angles of all the impeller blades 2 simultaneously.

When the impeller blades 2 are hinged on one side and fixed on the other side, the protrusions 323 cannot slide in the first grooves 21 because the impeller blades 2 are fixed, so that the impeller blades 2 cannot be driven to rotate, i.e. the angle of the impeller blades 2 is fixed.

The end surface of the second cover plate 32 facing away from the impeller blades 2 is provided with second grooves 324, and the second grooves 324 are distributed in an array along the circumferential direction of the second cover plate 32. The second recess 324 may facilitate an operator to insert a finger or other tool into and then rotate the second cover plate 32.

Referring to fig. 7, the connecting member includes a first screw 13, a plurality of first through hole groups 11 are arranged on the impeller seat 1, and the first through hole groups 11 are distributed in an array along the circumferential direction of the impeller seat 1; the first through hole group 11 comprises a plurality of first connection holes 12; one side of the impeller blade 2, which is hinged with the connecting rod 4, is a fixed end, and the other opposite side is a movable end; the first connection holes 12 are distributed in an array along a circumferential direction formed by rotating the movable end around the fixed end; a first screw 13 is threadedly coupled with the impeller blade 2 through the first coupling hole 12. The number of first sets of through holes 11 is equal to the number of impeller blades 2, ensuring a fixed attachment position for each impeller blade 2.

The connector also includes a second screw 334; the third cover plate 33 is provided with a plurality of second through hole groups 332, and the second through hole groups 332 are distributed in an array manner along the circumferential direction of the third cover plate 33; the second set of through holes 332 includes a plurality of second connecting holes 333; one side of the impeller blade 2, which is hinged with the connecting rod 4, is a fixed end, and the other opposite side is a movable end; the second connection holes 333 are distributed in an array along a circumferential direction formed by rotating the movable end around the fixed end; the second screw 334 is threadedly coupled to the impeller blade 2 through the second coupling hole 333. The number of second sets of through holes 332 is equal to the number of impeller blades 2, ensuring a fixed attachment position for each impeller blade 2.

It is to be understood that: although the present invention has been described in considerable detail with reference to certain embodiments thereof, it is not intended to be limited to the details shown, since various changes in form and detail can be made therein without departing from the scope of the utility model encompassed by the appended claims.

Claims

1. The utility model provides an impeller, includes impeller seat (1), a plurality of impeller blade (2) and apron subassembly (3), and impeller seat (1) and apron subassembly (3) set up face to face, its characterized in that: a connecting rod (4) is fixed between the impeller seat (1) and the cover plate component (3); the connecting rod (4) is vertical to the space between the impeller seat (1) and the cover plate component (3); one side of the impeller blade (2) is hinged with the connecting rod (4); a connecting piece for fixing the impeller blade (2) is arranged between the impeller blade (2) and the impeller seat (1) and/or the cover plate component (3).

2. An impeller according to claim 1, wherein: the cover plate assembly (3) comprises a first cover plate (31), a second cover plate (32) and a third cover plate (33); one end of the connecting rod (4) is fixedly connected with the impeller seat (1), and the other end of the connecting rod is fixedly connected with the first cover plate (31); the second cover plate (32) is annularly sleeved on the outer side of the first cover plate (31), and the third cover plate (33) is annularly sleeved on the outer side of the second cover plate (32); the second cover plate (32) is rotatably connected with the first cover plate (31), and the second cover plate (32) is rotatably connected with the third cover plate (33).

3. An impeller according to claim 2, wherein: a supporting column (5) is arranged between the third cover plate (33) and the impeller seat (1), one end of the supporting column (5) is fixedly connected with the impeller seat (1), and the other end of the supporting column is fixedly connected with the third cover plate (33).

4. An impeller according to claim 2, wherein: the end surface of the impeller blade (2) facing the second cover plate (32) is provided with a first groove (21), and the end surface of the second cover plate (32) facing the impeller blade (2) is fixed with a convex block (323); the projection (323) is connected with the first groove (21) in a sliding way.

5. An impeller according to claim 2, wherein: the end face, back to the impeller blades (2), of the second cover plate (32) is provided with second grooves (324), and the second grooves (324) are distributed in an array mode along the circumferential direction of the second cover plate (32).

6. An impeller according to claim 1, wherein: the connecting piece comprises a first screw (13); a plurality of first through hole groups (11) are arranged on the impeller seat (1), and the first through hole groups (11) are distributed in an array manner along the circumferential direction of the impeller seat (1); the first through hole group (11) comprises a plurality of first connecting holes (12); one side of the impeller blade (2) which is hinged with the connecting rod (4) is a fixed end, and the other opposite side is a movable end; the first connecting holes (12) are distributed in an array along the circumferential direction formed by rotating the movable end around the fixed end; the first screw (13) passes through the first connecting hole (12) and is in threaded connection with the impeller blade (2).

7. An impeller according to claim 2, wherein: the connector further comprises a second screw (334); a plurality of second through hole groups (332) are arranged on the third cover plate (33), and the second through hole groups (332) are distributed in an array mode along the circumferential direction of the third cover plate (33); the second through hole group (332) comprises a plurality of second connecting holes (333); one side of the impeller blade (2) which is hinged with the connecting rod (4) is a fixed end, and the other opposite side is a movable end; the second connecting holes (333) are distributed in an array along the circumferential direction formed by rotating the movable end around the fixed end; the second screw (334) passes through the second connecting hole (333) and is in threaded connection with the impeller blade (2).