CN209180086U - A kind of energy saving fan - Google Patents

Abstract

The utility model discloses a kind of energy saving fans, it includes an air blower, air blower includes a support frame, support frame is equipped with a driving motor, support and fan assembly, fan assembly includes casing and impeller, casing is equipped with air inlet and air outlet, impeller includes a wheel disc, wheel disc is cone, reel and blade are installed on wheel disc, α structure is set between blade and reel, the pressure that impeller when rotating at high speed generates high pressure blower can be effectively reduced, improve the energy efficiency conversion rate of high pressure blower.First stiffening plate and the second stiffening plate are equipped with the second bevel edge, can effectively reduce the pressure that impeller when rotating at high speed generates high pressure blower, further increase the energy efficiency conversion rate of high pressure blower.Blade upper stream boundary-layer can be made to be converted into Turbulent Boundary Layer earlier in addition, also setting up interstitial structure between the first stiffening plate and the second stiffening plate, separate vortex, noise reduces.

Description

A kind of energy saving fan

Technical field

The utility model belongs to high pressure blower field, more particularly, to a kind of energy saving fan.

Background technique

Air blower is the fluid mechanical device with gas compression and gas conveying function, is widely used in printing machinery, combustion Mechanical cooling or the suction and conveying wind of the equipment such as machine, drying machine, incinerator and insulating box occur for burning machine, precipitron, hot wind.According to gas The difference of wind pressure or compression ratio is compressed, is known as the air blower that wind pressure is 30kPa-200KPa or compression ratio is 1.3-3 in industry High pressure blower.

At work, impeller is easy to produce vortex noise to high pressure blower during high speed rotation, further, since leaf Dust accumulation on wheel and shaft increases, it will reduce the revolving speed of impeller, and consume energy and increase therewith, and the noise of air blower with And energy consumption is affected by the shape of impeller.

Utility model content

In order to solve the problems of the above-mentioned prior art, the utility model proposes a kind of energy saving fan, Its energy efficiency conversion rate that blower can be improved, it is energy saving.

The technical solution of the utility model is achieved in that

A kind of energy saving fan a comprising air blower, the air blower include a support frame, support frame as described above It is equipped with a driving motor, support and fan assembly, the driving motor includes a driving wheel, and the support is equipped with first axle Seat and second bearing seat are held, a main shaft, one end connection of the main shaft are installed in the first bearing seat and second bearing seat Driven wheel, the other end connect the fan assembly, and the driving wheel is connected with driven wheel by belt, and the fan assembly includes Casing and impeller, the casing are equipped with air inlet and air outlet, which is characterized in that the impeller includes a wheel disc, the wheel Disk is cone, is equipped with reel and blade on the wheel disc, the side wall of the reel is equipped with a disk, and the blade is uniform On the wheel disc and reel, the side of the blade is mounted on the wheel disc circumferential array, and the other side is mounted on the axis On disk, the blade includes bottom and top, and the bottom is consistent with the conicity of the wheel disc with the angle of horizontal plane, described Top is equipped with one first bevel edge, and first bevel edge and the angle of the top surface of the reel are α, and the blade, which is equipped with, to be reinforced Plate, the stiffening plate include the first stiffening plate and the second stiffening plate, and first stiffening plate is mounted on the top of the disk, institute The lower section that the second stiffening plate is mounted on the disk is stated, is formed between first between first stiffening plate and second stiffening plate Gap, first stiffening plate and second stiffening plate are equipped with the second bevel edge.

In this energy saving fan of the utility model, the width in the first gap is 1-2cm.

In this energy saving fan of the utility model, the angle of the α is 30-60 °.

In this energy saving fan of the utility model, the air inlet is cylinder cone cell.

In this energy saving fan of the utility model, the air inlet is equipped with anti-gauze, the anti-yarn Net is mesh.

In this energy saving fan of the utility model, support frame as described above has damping.

This energy saving fan for implementing the utility model, have the advantages that blade and reel it Between be arranged α structure, can effectively reduce impeller when rotating at high speed to high pressure blower generate pressure, improve high pressure blower Energy efficiency conversion rate.First stiffening plate and the second stiffening plate are equipped with the second bevel edge, can effectively reduce impeller when rotating at high speed to height The pressure that drum pressure blower generates, further increases the energy efficiency conversion rate of high pressure blower.In addition, the first stiffening plate and second is reinforced Interstitial structure is also set up between plate can make blade upper stream boundary-layer be converted into Turbulent Boundary Layer earlier, separate vortex, make an uproar Sound reduces.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of this energy saving fan of the utility model；

Fig. 2 is Fig. 1 mesohigh air blower internal impeller structural schematic diagram；

Fig. 3 is a direction schematic diagram of Fig. 2；

Fig. 4 is another direction schematic diagram of Fig. 2；

Fig. 5 is the portion A enlarged diagram in Fig. 2；

Fig. 6 is the scheme of installation of Fig. 1 mesohigh air blower and damping；

Fig. 7 is the structural schematic diagram of the horizontal spring component in Fig. 6；

Fig. 8 is the structural schematic diagram of the uprighting spring component in Fig. 6.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe.

This energy saving fan of the utility model as shown in Figures 1 to 8 a comprising air blower 11, institute It states air blower 11 and includes a support frame 12,12 are equipped with a driving motor 13, support 14 and fan assembly 15, institute on support frame as described above Stating driving motor 13 includes a driving wheel 131, and support 14 is equipped with first bearing seat 142 and second bearing seat 143, first bearing One main shaft 144 is installed, one end of main shaft 144 connects driven wheel 141, and the other end connects wind in seat 142 and second bearing seat 143 Thermomechanical components 15, driving wheel 131 are connected with driven wheel 141 by belt, and fan assembly 15 includes casing 151 and impeller 20, casing 151 are equipped with air inlet 153 and air outlet 154.

Impeller 20 includes a wheel disc 21, and wheel disc 21 is cone, is equipped with reel 22 and blade 23, reel 22 on wheel disc 21 Side wall one disk 221 is installed, uniformly circumferentially for array on wheel disc 21 and reel 22, blade 23 is trapezoidal, blade to blade 23 23 number is even number, and the number of blade 23 is 8 in the present embodiment, and the angle between each adjacent blade 23 is 45 °, so that blade 23 during rotation, can reduce resistance and the loss of the air-flow in high pressure blower.

The side of blade 23 is mounted on wheel disc 21, and the other side is mounted on reel 22, and blade 23 includes an open slot 231, disk 221 is caught in open slot 231, using card slot mounting means, is avoided blade 23 and is produced on wheel disc 21 and reel 22 Raw upper and lower displacement, in 23 compressed air of blade, the integral strength of blade 23 and wheel disc 21 is more preferable, and impeller 20 operates reliably, has The utilization rate for improving high pressure blower of effect, effectively extends the service life of impeller 20.Blade 23 includes 232 He of bottom Top 233, the bottom 232 is consistent with the conicity of wheel disc 21 with the angle of horizontal plane, and the top 233 is equipped with one first tiltedly Side 234, first bevel edge 234 and the angle of the top surface of reel 22 are α.α structure, α are set between blade 23 and reel 22 Angle be 30-60 °, can effectively reduce impeller 20 when rotating at high speed to high pressure blower generate pressure, improve high pressure drum The energy efficiency conversion rate of blower.

Blade 23 is equipped with stiffening plate 24, and stiffening plate 24 includes the first stiffening plate 241 and the second stiffening plate 242, and first adds Strong plate 241 is mounted on the top of disk 221, and the second stiffening plate 242 is mounted on the lower section of disk 221.First stiffening plate 241 and The first gap 243 is equipped between two stiffening plates 242, the width in the first gap 243 is 1-2cm, when impeller 20 is high-speed rotating It waits, dust granule is difficult to accumulate in the first gap, avoids impeller 20 from being in high temperature running and main shaft 144 is caused to burn out, guarantee to set Standby work is smooth.First stiffening plate 241 and the second stiffening plate 242 are equipped with the second bevel edge 244, can effectively reduce impeller 20 in high speed The pressure generated when rotation to high pressure blower, further increases the energy efficiency conversion rate of high pressure blower.First stiffening plate, 241 He Interstitial structure is arranged between second stiffening plate 242 can make 23 upper stream boundary-layer of blade be converted into Turbulent Boundary Layer earlier, make Vortex separation, noise reduce.

Air inlet 153 is cylinder cone cell, so that extraneous gas rapidly enters blower, the gas that single flows into is most, and flat Slide into blower, the low noise of generation.Anti- gauze 155 is equipped at air inlet 153, anti-gauze 155 is mesh, anti-gauze 155 It avoids biggish particulate matter from entering blower, improves the service life of blower.

Support frame 12 has a damping 30, and shock-damping structure 30 includes the first bottom plate 31, installs on the first bottom plate 31 There is support base 32, support frame 12 is installed on support base 32, the first bottom plate 31 is equipped with uprighting spring component 33, uprighting spring group Part 33 includes the second bottom plate 331, second spring 332, screw rod 333, adjusting rod 334, screw rod bushing 335 and rotating handles 336, screw rod 333 one end is mounted on the second bottom plate 331, and the other end is equipped with the first conical gear 337, and adjusting rod 334 is equipped with rotation handle One end of hand 336, the adjusting rod 334 is equipped with the second conical gear 338, and the first conical gear 337 and the second conical gear 338 are nibbled It closes, drives screw rod 333 to rotate in screw rod bushing 335 when rotating handles 336 rotate, to drive the rising of screw rod bushing 335 Perhaps decline second spring 332 is compressed or is extended therewith, can be manual according to the revolving speed of high pressure blower and specification size Spring force is controlled, so that the damping effect that high pressure blower is waited when rotated is more preferably.

First mounting plate 34 and the second mounting plate 35 be installed on first bottom plate 31, support base 32 and the first mounting plate 34 and Be respectively equipped with horizontal spring component 36 between second mounting plate 35, horizontal spring component 36 include third bottom plate 361, slide bar 362, Cylinder 363, top plate 364 and third spring 365, third spring 365 are looped around on cylinder, and one end of third spring 365 is mounted on On third bottom plate 361, the other end is mounted on top plate 364, and top plate 364 is contacted with support base 32.High pressure blower can be reduced The amplitude that horizontal direction generates when high speed rotation reduces the rigid collision between high pressure blower and support frame 12, reduces vibration The noise of generation extends the service life of air blower.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, made any modification, equivalent replacement and improvement etc. should be included in the utility model Protection scope within.

Claims (6)

1. a kind of energy saving fan comprising an air blower, the air blower includes a support frame, on support frame as described above Equipped with a driving motor, support and fan assembly, the driving motor includes a driving wheel, and the support is equipped with first bearing Seat and second bearing seat, are equipped with a main shaft in the first bearing seat and second bearing seat, one end connection of the main shaft from Driving wheel, the other end connect the fan assembly, and the driving wheel is connected with driven wheel by belt, and the fan assembly includes machine Shell and impeller, the casing are equipped with air inlet and air outlet, which is characterized in that the impeller includes a wheel disc, the wheel disc For cone, reel and blade are installed on the wheel disc, the side wall of the reel is equipped with a disk, and the blade is uniformly all To array on the wheel disc and reel, the side of the blade is mounted on the wheel disc, and the other side is mounted on the reel On, the blade includes bottom and top, and the bottom is consistent with the conicity of the wheel disc with the angle of horizontal plane, the top Portion is equipped with one first bevel edge, and first bevel edge and the angle of the top surface of the reel are α, and the blade is equipped with stiffening plate, The stiffening plate includes the first stiffening plate and the second stiffening plate, and first stiffening plate is mounted on the top of the disk, described Second stiffening plate is mounted on the lower section of the disk, is formed between first between first stiffening plate and second stiffening plate Gap, first stiffening plate and second stiffening plate are equipped with the second bevel edge.

2. energy saving fan according to claim 1, which is characterized in that the width in the first gap is 1-2cm.

3. energy saving fan according to claim 1, which is characterized in that the angle of the α is 30-60 °.

4. energy saving fan according to claim 1, which is characterized in that the air inlet is cylinder cone cell.

5. energy saving fan according to claim 1, which is characterized in that the air inlet is equipped with anti-gauze, The anti-gauze is mesh.

6. energy saving fan according to claim 1, which is characterized in that support frame as described above has damping machine Structure.