CN2416384Y

CN2416384Y - Domestic induced fan

Info

Publication number: CN2416384Y
Application number: CN 00210919
Authority: CN
Inventors: 片东河
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-25
Filing date: 2000-02-25
Publication date: 2001-01-24
Anticipated expiration: 2010-02-25

Abstract

The utility model relates to a domestic draught fan which comprises a rain-proof cap, a motor protective cover, a belt wheel protective cover, a motor, a driving pulley wheel, a driven pulley wheel, a transmission shaft, a shaft sleeve, an impeller, an anchor ear, a bracket and two supporting rods. The structural characteristic of the domestic draught fan is that the motor is arranged inside the motor protective cover which is fixedly connected with the anchor ear through two connecting plates, and the anchor ear is fixed on the outer wall of an upper port of a chimney through bolts. The driving pulley wheel is fixed on an output shaft of the motor, and the driven pulley wheel is fixed on the upper end of the transmission shaft. The utility model has the advantages of low energy consumption, long service life, smooth fume exhaust, etc., and the motor is free from the infringement of high temperature and fume.

Description

Domestic guiding fan

The utility model relates to a kind of air-introduced machine, particularly relates to a kind of air-introduced machine that is installed on the Civil energy-saving cooking stove chimney.

Along with expanding economy, a lot of residents from villages and towns use liquefied petroleum gas in a large number.But because northern China cold in winter, residents from villages and towns is also all keeping heated kang.As everyone knows, a heatable brick bed that make a fire, chimney are usually discharged fume and are had some setbacks, and cause down cigarette.Particularly to winter, usually because of " inverted ventilation ", cigarette is toward effluxing, on the contrary from a heatable brick bed kitchen range mouth toward emitting within doors, make the houseful to be cigarette, not only make the people be difficult to stand, and homininoxious physical and mental health, owing to fall cigarette, fuel combustion is insufficient, causes the waste of the energy in addition.Be head it off, many users are provided with a kind of small-sized air-introduced machine on chimney, in order to forced fume exhaust, smooth and easy to guarantee to discharge fume, but the motor of this air-introduced machine is mounted in the throat top, and during work, the cigarette temperature is sometimes up to 50-60 ℃, what motor was fatal is temperature rise, motor not only can not dispel the heat, and is subjected to the baking of high temperature on the contrary, works under the situation of degree more than 100 of being everlasting, cause electrical machine insulation aging, puncture at last burns out.For the air-introduced machine of preventing the dirty full envelope of motor cigarette more is subjected to high temperature damage, the high temperature cigarette is lost the lubricating oil in the motor bearings very soon, all smokes full cigarette ash with rotor in the bearing, and rotor is dumb, equals overload operation at high temperature, and rotating speed slows down, and burns out voluntarily at last.In addition, the moisture content in the cigarette seriously makes moist motor, and insulation is damaged, last ground connection and burning out.When particularly meeting cold air, the moisture content in the cigarette becomes frost, overworks motor, blade, meets hot cigarette and is frozen into the ice scraper-trough conveyer again after being fused into water, causes motor shaft to be frozen in, and blade and throat are freezed to death, and because of inconvenience is observed, energising back fail to start is easily burnt out.

The purpose of this utility model is at the problems referred to above, provides a kind of motor not to be subjected to the domestic guiding fan of high temperature and flue gas infringement.

The purpose of this utility model adopts following technical proposals to realize, that is:

Domestic guiding fan comprises that rainhat, motor shield, belt hood, motor, drive pulley, driven pulley, power transmission shaft, axle sleeve, impeller, anchor ear, carriage and 1 are with upper rack posts.Wherein, motor is arranged in the motor shield, and its housing is fixed on the carriage, and carriage is fixedlyed connected with motor shield.The output shaft of motor passes the top board of motor shield, extend in the belt hood, drive pulley is fixed on the output shaft of motor, driven pulley is arranged in the belt hood of throat top, and be fixed on the upper end of power transmission shaft, the lower end of power transmission shaft passes the base plate of belt hood, and fixedlys connected with impeller, fixedlys connected with belt hood in the upper end of its axle sleeve.Drive pulley connects by belt and driven pulley.Motor shield is fixedlyed connected with anchor ear by 2 connecting plates.On the outer wall of belt pulley protective cover, be fixed with 1 with upper rack posts, rainhat stuck-at-a upper end with upper rack posts.

Be provided with high-power starter and temperature controller in the above-mentioned motor shield.

On its upper end annular end face of above-mentioned anchor ear a plurality of spacers parallel with the upper surface of chimney are arranged.

Because motor of the present utility model is arranged on the side of chimney, can not be subjected to the infringement of high temperature, high humidity smog, it is smooth and easy to discharge fume, and the circulation naturally of cigarette is not influenced.In addition, because of being provided with high-power starting device and temperature controller, axial region is freezing, and the phenomenon that blade is sealed by frost does not influence the starting and the normal operation of motor, can not produce because of motor is frozen in and burn out the situation of motor.Simultaneously, external high temperature influence or service time are oversize and can cut off the power supply the protection motor automatically when causing motor temperature to surpass 70 ℃ of safe temperatures.The utility model can reduce the motor rotation resistance, and power consumption is few, and long service life can be applicable in vast residents from villages and towns.

Fig. 1 is the structural representation of a kind of embodiment of the present utility model.

The drawing reference numeral explanation:

1 is that rainhat, 2 is that motor shield, 3 is that belt pulley protective cover, 4 is that motor, 5 is that drive pulley, 6 is that driven pulley, 7 is that power transmission shaft, 8 is that axle sleeve, 9 is that impeller, 10 is that anchor ear, 11 is that carriage, 12 is that pole, 13 is that motor output shaft, 14 is that belt, 15 is that connecting plate, 16 is that spacer, 17 is that high-power starter, 18 is a temperature controller.

Below in conjunction with accompanying drawing the utility model is done an into explanation.

Domestic guiding fan comprises rainhat 1, motor shield 2, belt pulley protective cover 3, motor 4, drive pulley 5, driven pulley 6, power transmission shaft 7, axle sleeve 8, impeller 9,

anchor ear

10,11,2 poles 12 of carriage.Wherein motor 4 is arranged in the motor shield 2, and its housing is fixed on the carriage 11, and carriage 11 is fixedlyed connected with the inwall of motor shield 2.Motor output shaft 13 passes the top board of motor shield 2, extend in the belt pulley protective cover 3, drive pulley 5 is fixed on the motor output shaft 13, driven pulley 6 is arranged in the belt pulley protective cover 3 of throat top, and be fixed on the upper end of power transmission shaft 7, the base plate that the lower end of power transmission shaft 7 passes belt pulley protective cover 3 is fixedlyed connected with impeller 9, fixedlys connected with the base plate of belt pulley protective cover 3 in the upper end of its axle sleeve 8.Drive pulley 5 links by belt 14 and driven pulley 6.Anchor ear 10 is linked on the outer wall of chimney upper end, and its butt end screws with bolt.Fixedly connected with anchor ear 10 by 2 connecting plates 15 in the lower end of motor shield 2.Be fixed with 2 poles 12 on the outer wall of belt pulley protective cover 3, rainhat 1 is fixed on the upper end of 2 poles 12.

In order to prevent that anchor ear 10 from vertically moving, on the annular end face of the upper end of anchor ear 10, be provided with a plurality of spacers parallel 16 with the chimney upper surface.

Surpass 70 ℃ of motor safety temperature in order to prevent that external high temperature or service time are oversize and motor is not got up to burn out because of freezing starting, in motor shield 2, be provided with high-power starter 17 and temperature controller 18.

Claims

1, domestic guiding fan, comprise rainhat (1), motor shield (2), belt pulley protective cover (3), motor (4), drive pulley (5), driven pulley (6), power transmission shaft (7), axle sleeve (8), impeller (9), anchor ear (10), carriage (11) and 1 are with upper rack posts (12), the lower end of each pole (12) is fixed on the outer wall of belt pulley protective cover (3), rainhat (1) is fixed on the upper end of pole (12), it is characterized in that motor (4) is arranged in the motor shield (2), its housing is fixed on the carriage (11), carriage (11) is fixedlyed connected with motor shield (2), motor output shaft (13) passes the top board of motor shield (2), extend in the belt pulley protective cover (3), drive pulley (5) is fixed on the motor output shaft (13), driven pulley (6) is arranged in the belt pulley protective cover (3) of throat top, and be fixed on the upper end of power transmission shaft (7), the lower end of power transmission shaft (7) passes the base plate of belt pulley protective cover (3), and fixedly connected with impeller (9), fixedly connected with the base plate of belt pulley protective cover (3) in the upper end of its axle sleeve (8), motor shield (2) is fixedlyed connected with anchor ear (10) by 2 connecting plates (15).

2, domestic guiding fan according to claim 1 is characterized in that on the upper end annular end face of described anchor ear (10) a plurality of spacers parallel with the upper surface of chimney (16) being arranged.