CN213899334U - Double-impeller fan for tobacco redrying production line - Google Patents

Abstract

A double-impeller fan for a tobacco redrying production line relates to the technical field of tobacco redrying production, and comprises a motor, a transmission shaft connected with the output end of the motor, an impeller arranged on the transmission shaft, an upper shell and a lower shell which are communicated with each other and coaxially arranged, wherein the upper shell and the lower shell are both in a cylindrical structure or a rectangular structure, and a partition plate is horizontally arranged in the lower shell; the motor is fixed in the casing side, the transmission shaft upper end is located the epitheca and is connected with motor drive with the help of the belt, the axle lower extreme passes and extends and run through the baffle in the casing of epitheca downcharge, the impeller includes first impeller and second impeller, first impeller sets up on the transmission shaft and is located the inferior valve internal, the baffle upper end, the second impeller sets up on the transmission shaft and is located the inferior valve internal, the baffle lower extreme, design through bilobed wheel, only need a fan just can replace two traditional fans, the operation is more stable, reduce occupation space, and the maintenance, it is very convenient to change.

Description

Double-impeller fan for tobacco redrying production line

Technical Field

The utility model relates to a tobacco redrying production technical field specifically is a bilobed wheel fan that tobacco redrying production line was used has been related to.

Background

The re-baking of the tobacco leaves after the primary baking is converted into the raw materials for the production of the cigarette industry is needed because the moisture regain of the primary-baked tobacco leaves is uneven during grading and bundling, and the moisture content is quite inconsistent due to different climates and storage conditions in various places. High water content, easy rotten and deterioration, and the function of redrying the tobacco leaves: firstly, adjusting moisture to prevent mildew; secondly, removing miscellaneous gas and purifying aroma; thirdly, the pesticide and the sterilization are beneficial to storage; and fourthly, the color and luster are maintained, the production is facilitated, the physical and chemical properties of the redried tobacco leaves after being heated and dried again are further optimized, the quality of the tobacco leaves is improved, the hygroscopicity is weakened, and the natural alcoholization of the tobacco leaves in the storage process is facilitated.

During redrying, tobacco leaves are placed in a curing barn, hot air is sent into the curing barn through a circulating fan, the tobacco leaves are cured through the hot air, the circulating fan is one of core components on a tobacco leaf redrying production line, the efficiency and the quality of redrying of the tobacco leaves are influenced, the existing circulating fan is generally arranged in an air duct, and the traditional circulating fan is inconvenient to install, maintain and replace due to small installation space.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the above problem, the utility model provides a bilobed wheel fan that tobacco redrying production line was used is the special fan that uses on the tobacco redrying production line, through bilobed wheel's design, only needs a fan just can replace two traditional fans, moves more stably, reduces occupation space, and it is very convenient to maintain, change moreover.

The technical scheme adopted by the utility model is that a double-impeller fan for tobacco redrying production line is provided, which comprises a motor, a transmission shaft connected with the output end of the motor, an impeller arranged on the transmission shaft, an upper shell and a lower shell which are mutually communicated and coaxially arranged, wherein the upper shell and the lower shell are both in a tubular structure or a rectangular structure, and a baffle is horizontally arranged in the lower shell;

the motor is fixed in the upper casing side, the transmission shaft upper end is located the upper casing and is connected with motor drive with the help of the belt, and the transmission shaft lower extreme passes and extends and run through the baffle in the casing down of upper casing, the impeller includes first impeller and second impeller, and first impeller setting just is located the internal, baffle upper end of inferior valve on the transmission shaft, and the second impeller setting just is located the internal, baffle lower extreme of inferior valve on the transmission shaft.

The second impeller includes upper cover plate, lower apron and sets up at the upper cover plate, lap the blade between down, the upper cover plate is discoid structure and is provided with shaft hole and axle bed on it, the apron is the length that circle ring shaped structure and its width are greater than the blade down, the interior disc downward sloping setting of apron down, the blade is circumference array and erects the slope and set up between upper cover plate, lower apron, the blade is the platelike structure that the up end is the plane, the lower terminal surface is the inclined plane.

The first impeller and the second impeller are identical in structure and symmetrically arranged at the upper end and the lower end of the partition plate, air guide covers are arranged at the upper end of the first impeller and the lower end of the second impeller, are in a horn mouth shape and are fixed in the lower shell, the outer diameter of a small opening of each air guide cover is matched with the inner diameter of the lower cover plate, and the air guide covers are embedded into the lower cover plate.

And an air guide plate is arranged between the blades, the front end of the air guide plate is fixed with the rear half section of one side of each blade, and the rear end of the air guide plate is fixed with the front half section of the other side of the adjacent blade.

The upper end or the side surface of the upper shell is provided with a first air inlet, the lower end of the lower shell is provided with a second air inlet, and the side surface of the lower shell is provided with two air outlets which respectively correspond to the upper end and the lower end of the partition board.

The utility model has the advantages that:

1. the utility model discloses when using, can connect two supply-air duct and two air-out pipelines simultaneously, can replace the effect of two fans, reduced user's manufacturing cost.

2. The motor sets up outside the epitheca body, when breaking down, dismantlement, change that can be quick, and is very convenient.

3. The wind scooper can isolate the entering hot gas and the exhausted hot gas, avoid two streams of hot gas from colliding with each other, cause flocculation, and provide guidance for the hot gas when entering.

4. The concave design of the lower cover plate and the bottom inclined plane design of the blades reduce the resistance of the impeller during rotation, accelerate the flow velocity of hot air and improve the use effect.

5. The baffle separates into two independent cavitys with the casing down, has avoided the steam in two wind channels to exert an influence each other, reduces the result of use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the impeller.

In the attached drawing, the device comprises a motor 1, a motor 2, a transmission shaft 3, an upper shell 4, a lower shell 5, a partition plate 6, a belt 7, a first impeller 8, a second impeller 9, an upper cover plate 10, a lower cover plate 11, blades 12, an air guide cover 13 and an air guide plate.

Detailed Description

As shown in fig. 1-2, the utility model provides a double-impeller fan for tobacco redrying production line, which comprises a motor 1, a transmission shaft 2 connected with the output end of the motor 1, an impeller arranged on the transmission shaft 2, an upper shell 3 and a lower shell 4 which are mutually communicated and coaxially arranged, wherein the upper shell 3 and the lower shell 4 are both in a tubular structure or a rectangular structure, and a baffle 5 is horizontally arranged in the lower shell 4;

motor 1 is fixed in 3 sides of last casing, 2 upper ends of transmission shaft are located last casing 3 and are connected with the transmission of motor 1 with the help of belt 6, and 2 lower extremes of transmission shaft pass last casing 3 and extend and run through baffle 5 to the interior of 4 down casings, the impeller includes first impeller 7 and second impeller 8, and first impeller 7 sets up on transmission shaft 2 and is located casing 4 down, 5 upper ends of baffle, and second impeller 8 sets up on transmission shaft 2 and is located casing 4 down, 5 lower extremes of baffle.

When in use, hot air enters from the upper end or the side surface of the upper shell 3, when the first impeller 7 rotates, the bottom generates suction force to suck the hot air into the first impeller 7, the hot air is discharged to one side of the impeller through the centrifugal force generated in the first impeller 7, the hot air in another air channel enters from the bottom of the lower shell 4, the second impeller 8 sucks the hot air and discharges the hot air to the side surface, the first impeller 7 and the second impeller 8 are separated by the partition plate 5, the hot air in the upper channel and the lower channel are not interfered with each other, the effect that one fan can circulate and accelerate the hot air in two air channels simultaneously is realized, the utility model adopts the mode that one motor 1 drives the two impellers to replace the mode that two fans are installed in two air channels in the prior art, the occupied space of the fans is reduced, the difficulty in installation and disassembly is reduced, time and labor are saved, and the whole structure of the design is simple, the production cost is low, and the practicability is strong, on transmission shaft 2 was through being fixed in last casing 3 bottom and baffle 5 respectively with the help of the axle bed, the operation was very stable, and motor 1 sets up outside last casing 3, when motor 1 broke down, can be quick dismantle motor 1, and is very convenient, offered open closed maintenance door in last casing side, the convenience is to looking over and maintaining of belt and transmission shaft.

As shown in fig. 2, the second impeller 8 includes an upper cover plate 9, a lower cover plate 10 and a blade 11 disposed between the upper cover plate 9 and the lower cover plate 10, the upper cover plate 9 is a disc-shaped structure and is provided with a shaft hole and a shaft seat thereon, the lower cover plate 10 is a circular ring-shaped structure and has a width greater than the length of the blade 11, an inner circular edge of the lower cover plate 10 is inclined downward, the blade 11 is arranged between the upper cover plate 9 and the lower cover plate 10 in a circumferential array manner, and the blade 11 is a plate-shaped structure with an upper end surface being a plane and a lower end surface being an inclined plane.

Upper cover plate 9 is fixed with transmission shaft 2 with the help of the axle bed, and the design of the indent formula of lower cover plate 10 can lead the hot-blast of entering to reduced the clearance between blade 11, the flow space of hot-gas promptly, increase centrifugal force that can be further, further accelerated the velocity of flow of steam, reduced the area of contact of blade 11 with the air, when the impeller rotates, can reduce the resistance, reduce motor 1 burden.

As shown in fig. 1, the first impeller 7 and the second impeller 8 have the same structure and are symmetrically disposed at the upper end and the lower end of the partition plate 5, the upper end of the first impeller 7 and the lower end of the second impeller 8 are both provided with air scoops 12, the air scoops 12 are in a bell mouth shape and are fixed in the lower casing 4, the outer diameter of the small opening of the air scoops 12 is matched with the inner diameter of the lower cover plate 10, and the air scoops 12 are embedded in the lower cover plate 10.

In apron 10 under the embedding of wind scooper 12, with the leading-in apron 10 down of the steam in wind channel, when steam gets into, separate the steam of getting into and exhaust hot gas, avoid two strands of steam clash each other, cause the wadding in a confused state of mind, influence the effect that steam stably flows.

As shown in fig. 2, air guide plates 13 are disposed between the blades 11, and the front ends of the air guide plates 13 are fixed to the rear half section of one side of the blade 11, and the rear ends are fixed to the front half section of the other side of the adjacent blade 11.

Adopt air guide plate 13 machine to connect fixedly between blade 11, hot gas is when the air guide plate 13 that flows through like this, because the flow space diminishes, then can accelerate, through air guide plate 13 back, hot gas converges again under the water conservancy diversion of blade 11 and promotion, air guide plate 13 is in the acceleration hot gas flow rate, and can not make the flow production flocculation of hot gas.

As shown in fig. 1, a first air inlet is provided at the upper end or the side of the upper casing 3, a second air inlet is provided at the lower end of the lower casing 4, and two air outlets are provided at the side of the lower casing 4 and respectively correspond to the upper end and the lower end of the partition board 5.

According to the actual use demand, the air inlet and the air outlet can be adjusted in adaptability, the design can be simultaneously connected with two air supply pipelines and two air outlet pipelines, and during use, one fan can replace two traditional fans, so that the use cost is greatly reduced.

Claims (5)

1. The utility model provides a bilobed wheel fan that tobacco redrying production line was used, includes motor (1), transmission shaft (2) and the impeller of setting on transmission shaft (2) of being connected with motor (1) output, its characterized in that: the device is characterized by also comprising an upper shell (3) and a lower shell (4) which are communicated with each other and coaxially arranged, wherein the upper shell (3) and the lower shell (4) are both in a cylindrical structure or a rectangular structure, and a partition plate (5) is horizontally arranged in the lower shell (4);

motor (1) is fixed in last casing (3) side, transmission shaft (2) upper end is located casing (3) and is connected with motor (1) transmission with the help of belt (6), and transmission shaft (2) lower extreme passes and extends and run through baffle (5) to casing (4) down in last casing (3), the impeller includes first impeller (7) and second impeller (8), and first impeller (7) set up on transmission shaft (2) and lie in casing (4) down, baffle (5) upper end, and second impeller (8) set up on transmission shaft (2) and lie in casing (4) down, baffle (5) lower extreme.

2. The double-impeller fan for the tobacco redrying production line according to claim 1, characterized in that: second impeller (8) include upper cover plate (9), apron (10) down and set up at upper cover plate (9), down blade (11) between apron (10), upper cover plate (9) are discoid structure and are provided with shaft hole and axle bed on it, apron (10) are the length that circle ring structure and its width are greater than blade (11) down, the interior disc downward sloping of apron (10) sets up down, blade (11) are the circumference array and erect the slope and set up between upper cover plate (9), apron (10) down, blade (11) are the platelike structure that the up end is the plane, the lower terminal surface is the inclined plane.

3. The double-impeller fan for the tobacco redrying production line according to claim 2, characterized in that: the structure of the first impeller (7) and the structure of the second impeller (8) are the same and are symmetrically arranged at the upper end and the lower end of the partition plate (5), the upper end of the first impeller (7) and the lower end of the second impeller (8) are respectively provided with an air guide cover (12), the air guide covers (12) are in a horn mouth shape and are fixed in the lower shell (4), the outer diameter of a small opening of each air guide cover (12) is matched with the inner diameter of the lower cover plate (10), and the air guide covers (12) are embedded into the lower cover plate (10).

4. The double-impeller fan for the tobacco redrying production line according to claim 2, characterized in that: be provided with air guide plate (13) between blade (11), air guide plate (13) front end is fixed with the latter half of blade (11) one side, and the rear end is fixed with the former half of adjacent blade (11) opposite side.

5. The double-impeller fan for the tobacco redrying production line according to claim 1, characterized in that: the upper end or the side surface of the upper shell (3) is provided with a first air inlet, the lower end of the lower shell (4) is provided with a second air inlet, and the side surface of the lower shell (4) is provided with two air outlets which respectively correspond to the upper end and the lower end of the partition plate (5).

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