CN114688101A

CN114688101A - Improved centrifugal fan blade

Info

Publication number: CN114688101A
Application number: CN202210404535.XA
Authority: CN
Inventors: 潘可; 车增贤; 卜彦雄
Original assignee: Anhui Langdi Impeller Machinery Co ltd
Current assignee: Anhui Langdi Impeller Machinery Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-01

Abstract

The invention discloses an improved centrifugal fan blade in the technical field of fan blades, which comprises an installation block, wherein the middle part of the installation block is provided with a central hole, the inner wall of the central hole is symmetrically provided with clamping grooves, the inside of the central hole is clamped with a main shaft, the inside of the main shaft is provided with a cavity, the inner wall of the cavity is symmetrically provided with a limiting sliding hole and a pore, the inside of the cavity is connected with a main shaft clamping mechanism, the outer side of the installation block is uniformly provided with a plurality of installation grooves, the inner wall of each installation groove is provided with two slots, the inside of each installation groove is provided with a connecting block, the connecting block is provided with two through holes, the outer end of each connecting block is connected with a blade, and the installation grooves are internally provided with connecting block limiting mechanisms; according to the invention, the screw rod is driven to rotate by rotating the rotary handle, the U-shaped thread block is driven to move to be separated from the through hole and the slot, the rotary plate and the U-shaped mounting block can be rotated, the connecting block can be conveniently taken out from the mounting groove, the blades can be dismounted, and the blades can be conveniently cleaned and maintained.

Description

Improved centrifugal fan blade

Technical Field

The invention relates to the technical field of fan blades, in particular to an improved centrifugal fan blade.

Background

The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. The blower is a Chinese habit abbreviation for gas compression and gas conveying machinery, and the blower generally comprises a ventilator, a blower and a wind driven generator. Fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and for ventilation and draught of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.

The fan can be classified into centrifugal type, axial flow type, diagonal flow type, and cross flow type according to the direction of gas flow. The centrifugal fan blades are widely applied to various ventilation equipment, such as air conditioning equipment or air suction and exhaust equipment. Traditional centrifugation fan blade structure is single, and the installation of being not convenient for is dismantled, when needing the clearance, and the operation is inconvenient.

Therefore, there is a need for an improved centrifugal fan blade.

Disclosure of Invention

The invention aims to provide an improved centrifugal fan blade to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a centrifugal fan blade of improvement, includes the installation piece, the centre bore has been seted up at the middle part of installation piece, the draw-in groove has been seted up to the inner wall symmetry of centre bore, the inside joint of centre bore is provided with the main shaft, the cavity has been seted up to the inside of main shaft, spacing slide opening, pore have been seted up to the inner wall symmetry of cavity, the internal connection of cavity has main shaft screens mechanism, a plurality of mounting grooves have evenly been seted up in the outside of installation piece, two slots have been seted up to the inner wall of mounting groove, the inside of mounting groove is provided with the connecting block, two through-holes have been seted up on the connecting block, the outer end of connecting block is connected with the blade, be provided with connecting block stop gear in the mounting groove.

Furthermore, in the improved centrifugal fan blade, an annular stop block is fixed on the inner wall of the central hole.

Furthermore, in the centrifugal fan blade of above-mentioned improvement, main shaft screens mechanism includes fixed slide bar, annular frame, short piece, slender pole, slider, connecting rod and fixture block, fixed slide bar is fixed in the inside of cavity, the outside slip cover of fixed slide bar is equipped with the slider, the both sides of slider all articulate and are connected with the connecting rod, the other end of connecting rod articulates and is connected with the fixture block, the fixture block slides and sets up in pore inside, fixture block and draw-in groove joint, the outer end symmetry of slider is fixed with the slender pole, the outer end of slender pole is fixed with the short piece, and the outer tip of two short pieces is fixed with the annular frame, the outside of main shaft is located to the annular frame slip cap, the spiro union has a plurality of adjusting bolts on the annular frame.

Furthermore, in the centrifugal fan blade of above-mentioned improvement, connecting block stop gear includes pivot, commentaries on classics board, U-shaped installation piece and locating component, the pivot sets up in the mounting groove, the fixed cover in the outside of pivot is equipped with the commentaries on classics board, the bottom mounting that changes the board has the U-shaped installation piece, be connected with locating component on the U-shaped installation piece.

Furthermore, in the centrifugal fan blade of above-mentioned improvement, locating component includes screw rod, U-shaped thread piece and short piece, the screw rod rotates and sets up on the U-shaped installation piece, the outer end of screw rod is fixed with the commentaries on classics hand, and the inner is fixed with the short piece, the outside cover of screw rod is equipped with U-shaped thread piece, U-shaped thread piece slides and restricts in the U-shaped installation piece, the both sides tip and the through-hole, the slot joint that correspond of U-shaped thread piece.

Furthermore, in the improved centrifugal fan blade, reinforcing ribs are arranged inside the blade.

Further, in the improved centrifugal fan blade, the mounting groove is arranged in a step shape.

Furthermore, in the improved centrifugal fan blade, the short block is limited to the limiting sliding hole in a sliding manner.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the screw rod is driven to rotate by rotating the rotating hand, the U-shaped threaded block is driven to move to be separated from the through hole and the slot, the rotating plate and the U-shaped mounting block can be rotated, the connecting block can be conveniently taken out from the mounting slot, the blades can be conveniently dismounted, and the blades can be conveniently cleaned and maintained.

2. According to the invention, the position of the annular frame is adjusted by rotating the adjusting bolt, and the clamping block is driven to be separated from the clamping groove under the matching of the short block, the thin rod, the sliding block, the connecting rod and the like, so that the separation of the main shaft and the central hole can be realized, and the structural flexibility is enhanced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the mounting groove of the present invention;

FIG. 4 is a schematic view of a positioning assembly of the present invention;

FIG. 5 is a cross-sectional view of the spindle of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-mounting block, 2-connecting block, 3-blade, 4-center hole, 5-mounting groove, 7-connecting block limiting mechanism, 71-rotating shaft, 72-rotating plate, 73-UU-shaped mounting block, 74-positioning component, 741-screw rod, 742-U-shaped thread block, 743-short block, 8-through hole, 9-cavity, 10-slot, 11-clamping groove, 12-annular block, 13-main shaft, 14-limiting sliding hole, 15-main shaft clamping mechanism, 151-fixed sliding rod, 152-annular frame, 153-short block, 154-slender rod, 155-sliding block, 156-connecting rod and 157-clamping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The invention provides a technical scheme that: the utility model provides a centrifugal fan blade of improvement, including installation piece 1, centre bore 4 has been seted up at the middle part of installation piece 1, the inner wall of centre bore 4 is fixed with annular dog 12, draw-in groove 11 has been seted up to the inner wall symmetry of centre bore 4, the inside joint of centre bore 4 is provided with main shaft 13, cavity 9 has been seted up to the inside of main shaft 13, spacing slide opening 14 has been seted up to the inner wall symmetry of cavity 9, pore 16, the internal connection of cavity 9 has main shaft screens mechanism 15, a plurality of mounting grooves 5 have evenly been seted up in the outside of installation piece 1, mounting groove 5 sets up to the echelonment, two slots 10 have been seted up to the inner wall of mounting groove 5, the inside of mounting groove 5 is provided with connecting block 2, two through-holes 8 have been seted up on connecting block 2, the outer end of connecting block 2 is connected with blade 3, the inside of blade 3 is provided with the strengthening rib, be provided with connecting block stop gear 7 in the mounting groove 5.

Example two

Based on the improved centrifugal fan blade provided by the first embodiment of the application, the second embodiment of the application provides another improved centrifugal fan blade. The second embodiment is only a further mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further described with reference to the drawings and the following detailed description.

Compared with the first embodiment, the present embodiment provides a specific spindle detent mechanism 15, which includes a fixed sliding rod 151, an annular frame 152, a short block 153, a thin rod 154, a sliding block 155, a connecting rod 156, and a retaining block 157, wherein the fixed sliding rod 151 is fixed inside the cavity 9, the sliding block 155 is slidably sleeved outside the fixed sliding rod 151, both sides of the sliding block 155 are hingedly connected with the connecting rod 156, the other end of the connecting rod 156 is hingedly connected with the retaining block 157, the retaining block 157 is slidably disposed inside the fine hole 16, the retaining block 157 is clamped with the retaining groove 11, the thin rod 154 is symmetrically fixed at the outer end of the sliding block 155, the short block 153 is fixed at the outer end of the thin rod 154, the short block 153 is slidably limited in the limiting sliding hole 14, the annular frame 152 is fixed at the outer end portions of the two short blocks 153, the annular frame 152 is slidably sleeved outside the spindle 13, and a plurality of adjusting bolts are screwed on the annular frame 152.

EXAMPLE III

Based on the improved centrifugal fan blade provided by the first embodiment of the application, the third embodiment of the application provides another improved centrifugal fan blade. The third embodiment is only a further mode of the first embodiment, and the implementation of the third embodiment does not affect the single implementation of the first embodiment.

The third embodiment of the present invention is further described below with reference to the drawings and the following embodiments.

Compared with the first embodiment, the specific connecting block limiting mechanism 7 provided in the first embodiment comprises a rotating shaft 71, a rotating plate 72, a U-shaped mounting block 73 and a positioning component 74, wherein the rotating shaft 71 is arranged in the mounting groove 5, the rotating plate 72 is fixedly sleeved on the outer side of the rotating shaft 71, the U-shaped mounting block 73 is fixed at the bottom end of the rotating plate 72, and the positioning component 74 is connected to the U-shaped mounting block 73.

The positioning assembly 74 comprises a screw 741, a U-shaped thread block 742 and a short block 743, the screw 741 is rotatably disposed on the U-shaped mounting block 73, a rotating hand is fixed at the outer end of the screw 741, the short block 743 is fixed at the inner end of the screw 741, the U-shaped thread block 742 is sleeved on the outer side of the screw 741, the U-shaped thread block 742 is slidably limited in the U-shaped mounting block 73, and the two side ends of the U-shaped thread block 742 are clamped with the corresponding through hole 8 and the corresponding slot 10.

The working principle is as follows:

when the blades 3 need to be disassembled, the rotating hand drives the screw 741 to rotate, the U-shaped thread block 742 is driven to move, so that the U-shaped thread block is separated from the through hole 8 and the slot 10, the rotating plate 72 and the U-shaped installation block 73 can be rotated, the connecting block 2 can be conveniently taken out from the installation groove 5, the blades 3 are disassembled, and the blades can be conveniently cleaned and maintained. The adjusting bolt is screwed to adjust the position of the annular frame 152, and the short block 153, the thin rod 154, the sliding block 155, the connecting rod 156 and the like are matched to drive the clamping block 157 to be separated from the clamping groove 11, so that the separation of the main shaft 13 and the central hole 4 can be realized, and the structural flexibility is enhanced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a centrifugal fan blade of improvement, includes installation piece (1), its characterized in that: a central hole (4) is arranged in the middle of the mounting block (1), clamping grooves (11) are symmetrically arranged on the inner wall of the central hole (4), a main shaft (13) is clamped in the center hole (4), a cavity (9) is arranged in the main shaft (13), the inner wall of the cavity (9) is symmetrically provided with a limiting slide hole (14) and a fine hole (16), a main shaft clamping mechanism (15) is connected inside the cavity (9), a plurality of mounting grooves (5) are uniformly formed in the outer side of the mounting block (1), the inner wall of the mounting groove (5) is provided with two slots (10), the inside of the mounting groove (5) is provided with a connecting block (2), two through holes (8) are formed in the connecting block (2), the outer end of the connecting block (2) is connected with the blade (3), and a connecting block limiting mechanism (7) is arranged in the mounting groove (5).

2. An improved centrifugal fan blade according to claim 1, wherein: and an annular stop block (12) is fixed on the inner wall of the central hole (4).

3. An improved centrifugal fan blade according to claim 1, wherein: the spindle clamping mechanism (15) comprises a fixed sliding rod (151), an annular frame (152), short blocks (153), a thin rod (154), a sliding block (155), a connecting rod (156) and a clamping block (157), the fixed sliding rod (151) is fixed in the cavity (9), the sliding block (155) is sleeved on the outer side of the fixed sliding rod (151) in a sliding mode, the connecting rod (156) is hinged to two sides of the sliding block (155), the clamping block (157) is hinged to the other end of the connecting rod (156), the clamping block (157) is arranged in the thin hole (16) in a sliding mode, the clamping block (157) is clamped with the clamping groove (11), the thin rods (154) are symmetrically fixed to the outer end of the sliding block (155), the short blocks (153) are fixed to the outer end of the thin rod (154), the annular frame (152) is fixed to the outer end of each of the two short blocks (153), and the annular frame (152) is sleeved on the outer portion of the spindle (13) in a sliding mode, the annular frame (152) is screwed with a plurality of adjusting bolts.

4. An improved centrifugal fan blade according to claim 1, wherein: connecting block stop gear (7) are including pivot (71), commentaries on classics board (72), U-shaped installation piece (73) and locating component (74), pivot (71) set up in mounting groove (5), the fixed cover in the outside of pivot (71) is equipped with commentaries on classics board (72), the bottom mounting that changes board (72) has U-shaped installation piece (73), be connected with locating component (74) on U-shaped installation piece (73).

5. An improved centrifugal fan blade according to claim 4, wherein: the positioning assembly (74) comprises a screw rod (741), a U-shaped thread block (742) and a short block (743), the screw rod (741) is rotatably arranged on the U-shaped mounting block (73), a rotating hand is fixed at the outer end of the screw rod (741), the short block (743) is fixed at the inner end of the screw rod, the U-shaped thread block (742) is sleeved on the outer side of the screw rod (741), the U-shaped thread block (742) is limited in the U-shaped mounting block (73) in a sliding mode, and the end portions of two sides of the U-shaped thread block (742) are clamped with the corresponding through hole (8) and the corresponding slot (10).

6. An improved centrifugal fan blade according to claim 1, wherein: and reinforcing ribs are arranged inside the blades (3).

7. An improved centrifugal fan blade according to claim 1, wherein: the mounting groove (5) is arranged in a step shape.

8. An improved centrifugal fan blade according to claim 3, wherein: the short block (153) is limited to the limiting sliding hole (14) in a sliding mode.