CN207945095U - A kind of blower device for alcohol direct-combustion furnace - Google Patents

Abstract

The utility model is related to cooking apparatus fields, disclose a kind of blower device for alcohol direct-combustion furnace, including motor, shell, impeller, motor is connected with impeller, air-inlet chamber, air-out chamber are equipped in shell, one end of motor is arranged in air-inlet chamber, and impeller is arranged in air-out chamber；Air-out chamber includes air outlet；Air-inlet chamber includes air intake vent；Motor includes main shaft, and main shaft extends into the air-out chamber, is connected with the center of impeller；The center of air outlet, the center of impeller, air intake vent center be located along the same line；Impeller includes barge board, blade, and blade is arranged in the lower surface of wind shield.The utility model sucks outside air with common motor impeller, and air is slowed down by wind shield, is compressed in air-out chamber air by the blade of rotation, until intracavity gas pressure is more than ambient pressure, final gas is discharged in air outlet.This blade wheel structure mold molding difficulty is low, and cost is little, simple in structure, and easy formation standard is simultaneously produced in batches.

Description

A kind of blower device for alcohol direct-combustion furnace

Technical field

The utility model is related to cooking apparatus fields, more particularly to a kind of blower device for alcohol direct-combustion furnace.

Background technology

Occur a kind of novel alcohol direct-combustion furnace in the market, include the burner positioned at upper end, and below stove Air blower.This air blower is reequiped according to traditional centrifugal blower, its critical piece be spiral case, vane rings, motor, Air entry, exhaust outlet；Wherein, the side center of spiral case and motor vertical connection, air entry center are located at same with arbor center On horizontal line, and exhaust outlet is located at where when vane rings rotate on the tangent line of disc, and the blade of vane rings is located at the edge of ring, ring Center be hollow Suction gas inlet, the rotation of arbor impeller sucks air high speed into the volute space residing for impeller, Air slows down in volute space assembles rotation, and air, which is compressed, causes pressure persistently to increase, to pass through the exhaust at tangent line Mouth discharge, the profile of exhaust outlet are similar to the flaring of " horn-like ", and the bottom of flaring is equipped with volute tongue, the center of volute tongue and vane rings Distance is minimum, can prevent swirling eddy from forming " vortex " in spiral case to greatest extent.

This impeller is advantageous in that the efficient of compressed gas, and wind-force is big, but applies and helped in alcohol direct-combustion furnace Combustion, performance is superfluous, and cost is also relatively high, is not suitable for batch production.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of blower device for alcohol direct-combustion furnace, cost is relatively low And it is easy to produce in batches.

In order to solve the above-mentioned technical problem, technical solutions of the utility model are：A kind of air blast for alcohol direct-combustion furnace fills It sets, including motor, shell, impeller, the motor is connected with the impeller, and air-inlet chamber, air-out chamber are equipped in the shell, described One end of motor is arranged in the air-inlet chamber, and the impeller is arranged in the air-out chamber；The air-out chamber includes air outlet； The air-inlet chamber includes air intake vent；The motor includes main shaft, and the main shaft extends into the air-out chamber, with the impeller Center be connected；The center of the air outlet, the center of the impeller, the air intake vent center be located along the same line；Institute It includes barge board, blade to state impeller, and the blade is arranged in the lower surface of wind shield.

Further, the wind shield includes axle sleeve, plate face, and the axis is set on the center of the plate face.

Further, it is provided with first positioning hole on the peripheral surface of the axle sleeve；The main shaft includes driving portion, the drive The diameter in dynamic portion is less than the bore of the axle sleeve, and it is fixed with the first positioning hole matched second to be provided on the driving portion Position hole.

Further, the main shaft further includes support portion, and the diameter of the support portion is more than the bore of the axle sleeve.

Further, the motor further includes first motor shell, the second motor housing, the first motor shell it is outer It is provided with the first engaging lug on peripheral wall, the second engaging lug is provided on the periphery wall of second motor housing；Described first connects Lug is screwed with second engaging lug, and the radical length of second engaging lug is more than first engaging lug Radical length.

Further, the shell includes wrapping up outside the third shell of the air-inlet chamber and the 4th of the package air-out chamber Shell, one end of the third shell are connected with first engaging lug, outside the other end of the third shell and the described 4th Shell phase connects.

Further, cover board is provided between the third shell and the 4th shell, the main shaft passes through the cover board simultaneously It extends into the air-out chamber and is connected with impeller.

Further, dowel is provided on the internal perisporium of the third shell, the cover board passes through screw with dowel It is locked.

Compared with prior art, a kind of blower device for alcohol direct-combustion furnace provided by the utility model, with common Motor impeller outside air is sucked, air is slowed down by wind shield, by the blade of rotation by air in air-out chamber Compression, until intracavity gas pressure is more than ambient pressure, final gas is discharged in air outlet.This blade wheel structure substitutes vane rings Structure, mold molding difficulty is low, and cost is little, simple in structure, and easy formation standard is simultaneously produced in batches.

Description of the drawings

Fig. 1 is a kind of sectional side elevation of blower device for alcohol direct-combustion furnace；

Fig. 2 is a kind of sectional side elevation of impeller in blower device for alcohol direct-combustion furnace；

Fig. 3 is a kind of upward view of impeller in blower device for alcohol direct-combustion furnace；

Fig. 4 is a kind of vertical view of air intake vent in blower device for alcohol direct-combustion furnace；

In figure：1- first motor shells, the second motor housings of 2-, 3- third shells, the 4th shells of 4-, 5- cover boards, 6- master Axis, 7- air intake vents, 8- air outlets, the first engaging lugs of 11-, the second engaging lugs of 21-, 31- dowels, 61- driving portions, 62- supports Portion, 63- wind shields, 64- blades, 65- axle sleeves, 611- second location holes, 651- first positioning holes.

Specific implementation mode

Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.

As shown in Figs 1-4：A kind of blower device for alcohol direct-combustion furnace, including motor, shell, impeller, the motor It is connected with the impeller, air-inlet chamber, air-out chamber is equipped in the shell, one end of the motor is arranged in the air-inlet chamber, The impeller is arranged in the air-out chamber；The air-out chamber includes air outlet 8；The air-inlet chamber includes air intake vent 7；The electricity Machine includes main shaft 6, and main shaft 6 extends into the air-out chamber, is connected with the center of the impeller；It is the center of air outlet 8, described The center of impeller, the center of air intake vent 7 are located along the same line；The impeller includes barge board 63, blade 64, and blade 64 is arranged In the lower surface of wind shield 63.After opening motor, the air in air-out chamber is squeezed out air outlet 8 because impeller rotates, outlet air Intracavitary forms negative pressure, air is drawn out of following air-inlet chamber, the speed that outside air enters is very high, passes through the resistance of wind shield 63 Gear speed slows down, and blade 64 constantly stirs so that air is gradually overstock in air-out chamber, forms stable air-supply air-flow. In alcohol heater, the rotating speed of regulation motor and the valve at burner can adjust required flame size.

Specifically, in order to preferably coordinate with main shaft 6, it includes axle sleeve 65, plate face, axle sleeve 65 to facilitate installation, wind shield 63 It is arranged at the center of the plate face, axle sleeve 65 is set on main shaft 6, so that axle sleeve 65 is closely tied with main shaft 6 by interference fit Driving impeller rotation can be realized in conjunction.

Specifically, for more convenient dismounting, axle sleeve 65 and a kind of preferable connection type of main shaft 6 be, axle sleeve 65 First positioning hole 651 is provided on peripheral surface；Main shaft 6 includes driving portion 61, and the diameter of driving portion 61 is less than the bore of axle sleeve 65, It is provided on driving portion 61 and positions two with 651 matched second location hole 611 of first positioning hole, one positioning pin of insertion Hole is locked, to more convenient dismounting impeller, in case repair adjustment.

Specifically, in order to it is better with firm main shaft 6 further include support portion 62 with axle sleeve 65, main shaft 6, support portion 62 it is straight Diameter is more than the bore of axle sleeve 65, and when assembling, support portion 62 can facilitate the quick positioning of axle sleeve 65, can also make impeller and driving portion 61 combination is more firm.

Specifically, in order to design air duct upwards in the spindle shaft of motor, the motor further includes first motor shell 1, Two motor housings 2 are provided with the first engaging lug 11 on first motor shell 1, the second engaging lug are provided on the second motor housing 2 21；First engaging lug 11 is screwed with the second engaging lug 21, and the radical length of the second engaging lug 21 is more than the first connection The radical length of ear 11.Shell includes the 4th shell 4 of the third shell 3 and the package air-out chamber that wrap up the air-inlet chamber, One end of the third shell 3 is connected with the first engaging lug 11, and the other end of third shell 3 is connected with the 4th shell 4.First On engaging lug in addition to setting have with the second engaging lug 21 think cooperation screw hole other than, what is also set up has the connection with third shell 3 Matched connecting hole is held, third shell 3 is set in the outside of the second motor housing 2, and solid with the locking of the first engaging lug 11 Fixed, the gap between the second motor housing 2 and third shell 3 forms air-inlet chamber, the plane where the first engaging lug 11 herein Form air intake vent 7.

In order to preferably form pressure difference between air-inlet chamber and air-out chamber, it is arranged between third shell 3 and the 4th shell 4 There is cover board 5, main shaft 6 passes through cover board 5 and extends into the air-out chamber to be connected with impeller.It is set on the internal perisporium of third shell 3 It is equipped with dowel 31, cover board 5 is fixed with dowel 31 by screw lock.Several ventholes, air intake vent 7 are provided on cover board 5 The wind at place is squeezed because pressure difference reason enters the impeller that air-out chamber is rotated from venthole up to air outlet 8.

The embodiment of the utility model is explained in detail above in association with attached drawing, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the scope of protection of the utility model.

Claims (8)

1. a kind of blower device for alcohol direct-combustion furnace, including motor, shell, impeller, the motor are connected with the impeller, Air-inlet chamber, air-out chamber are equipped in the shell, one end of the motor is arranged in the air-inlet chamber, and the impeller is arranged in institute It states in air-out chamber；It is characterized in that：The air-out chamber includes air outlet；The air-inlet chamber includes air intake vent；The motor includes Main shaft, the main shaft extend into the air-out chamber, are connected with the center of the impeller；It is the center of the air outlet, described The center of impeller, the air intake vent center be located along the same line；The impeller includes barge board, blade, and the blade is set It sets in the lower surface of wind shield.

2. a kind of blower device for alcohol direct-combustion furnace according to claim 1, it is characterised in that：The wind shield packet Axle sleeve, plate face are included, the axis is set on the center of the plate face.

3. a kind of blower device for alcohol direct-combustion furnace according to claim 2, it is characterised in that：Outside the axle sleeve First positioning hole is provided on circumferential surface；The main shaft includes driving portion, and the diameter of the driving portion is less than the bore of the axle sleeve, It is provided on the driving portion and the matched second location hole of the first positioning hole.

4. a kind of blower device for alcohol direct-combustion furnace according to claim 3, it is characterised in that：The main shaft also wraps Support portion is included, the diameter of the support portion is more than the bore of the axle sleeve.

5. a kind of blower device for alcohol direct-combustion furnace according to claim 4, it is characterised in that：The motor also wraps First motor shell, the second motor housing are included, is provided with the first engaging lug on the periphery wall of the first motor shell, described The second engaging lug is provided on the periphery wall of two motor housings；First engaging lug is solid by screw with second engaging lug Fixed, the radical length of second engaging lug is more than the radical length of first engaging lug.

6. a kind of blower device for alcohol direct-combustion furnace according to claim 5, it is characterised in that：The shell includes It wraps up the third shell of the air-inlet chamber and wraps up the 4th shell of the air-out chamber, one end of the third shell and described the One engaging lug is connected, and the other end of the third shell is connected with the 4th shell.

7. a kind of blower device for alcohol direct-combustion furnace according to claim 6, it is characterised in that：The third shell Be provided with cover board between the 4th shell, the main shaft pass through the cover board and extend into the air-out chamber with impeller phase Even.

8. a kind of blower device for alcohol direct-combustion furnace according to claim 7, it is characterised in that：The third shell Internal perisporium on be provided with dowel, the cover board is fixed with dowel by screw lock.