阅读说明：本技术 一种耐高温轴流风机 (High-temperature-resistant axial flow fan ) 是由 皮芝青 吴大胜 于 2020-04-24 设计创作，主要内容包括：本发明属于轴流风机技术领域,具体的说是一种耐高温轴流风机,包括安装支架、电机和轴流风柱；所述安装支架的上表面于靠近安装支架的一侧位置固连有支撑架；所述支撑架的上表面固连有电机；所述安装支架的上表面靠近支撑架一侧位置固连有座板；所述座板的数量为二,且以前后对称设置；两个所述座板的上表面共同固连有同一个轴流风柱；通过本发明有效的实现了电机的输出轴与转动柱不同轴,有效的降低高温气体在通风口内的空气流阻,避免了高温气体对电机正常运转的影响,有效的提高了该轴流风机的使用寿命,同时可以保证高温条件下的长时间正常工作运转。(The invention belongs to the technical field of axial flow fans, and particularly relates to a high-temperature-resistant axial flow fan which comprises a mounting bracket, a motor and an axial flow air column, wherein the mounting bracket is arranged on the motor; a support frame is fixedly connected to one side of the upper surface of the mounting bracket, which is close to the mounting bracket; the upper surface of the support frame is fixedly connected with a motor; a seat board is fixedly connected to one side of the upper surface of the mounting support, which is close to the support frame; the number of the seat plates is two, and the seat plates are symmetrically arranged from front to back; the upper surfaces of the two seat plates are fixedly connected with the same axial flow air column; the axial flow fan effectively realizes that the output shaft of the motor is not coaxial with the rotating column, effectively reduces the air flow resistance of high-temperature gas in the vent, avoids the influence of the high-temperature gas on the normal operation of the motor, effectively prolongs the service life of the axial flow fan, and simultaneously can ensure the long-time normal operation under the high-temperature condition.)

1. A high-temperature resistant axial flow fan comprises a mounting bracket (1), a motor (2) and an axial flow air column (3); the method is characterized in that: the mounting bracket (1) is designed to be of a frame structure; a support frame (21) is fixedly connected to the upper surface of the mounting bracket (1) at a position close to one side of the mounting bracket (1); the upper surface of the support frame (21) is fixedly connected with a motor (2); a seat board (11) is fixedly connected to one side of the upper surface of the mounting bracket (1) close to the support frame (21); the number of the seat plates (11) is two, and the seat plates are symmetrically arranged from front to back; the upper surfaces of the two seat plates (11) are fixedly connected with the same axial flow air column (3) together; the front end surface of the axial flow wind column (3) is provided with a ventilation opening which is communicated from front to back; a fixing rod (31) is fixedly connected to the side surface of one side, close to the output shaft of the motor (2), of the inner arc surface of the axial flow air column (3); the number of the fixing rods (31) is three, and the fixing rods are uniformly distributed by taking the axis of the axial flow wind column (3) as the center; the three fixing rods (31) are fixedly connected with the same rotating column (32) at the axial line position of the axial flow wind column (3); a driven belt pulley (33) is arranged on the side face of the rotating column (32) on one side where the output shaft of the motor (2) is located, and the driven belt pulley (33) is located on the outer side of the axial flow air column (3); an output shaft of the motor (2) is provided with a driving belt pulley (22), and the driving belt pulley (22) and the driven belt pulley (33) are correspondingly arranged on the same plane; the same transmission belt (23) is connected between the driving belt pulley (22) and the driven belt pulley (33); the outer arc surface of the rotating column (32) is connected with a fan blade (34) at a position far away from the driven belt pulley (33); the number of the fan blades (34) is three, and the fan blades are uniformly arranged by taking the axis of the rotating column (32) as the center.

2. The high-temperature resistant axial flow fan according to claim 1, characterized in that: the driving belt pulley (22) is in threaded connection with the outer arc surface of the output shaft of the motor (2), and the driven belt pulley (33) is in threaded connection with the rotating column (32); the outer arc surfaces of the driving belt pulley (22) and the driven belt pulley (33) are provided with uniformly distributed transmission grooves; the diameter of the bottom of the transmission groove is changed in a gradient manner; the transmission outer diameter of the driving pulley (22) is larger than that of the driven pulley (33).

3. The high-temperature resistant axial flow fan according to claim 1, characterized in that: the inner arc surface of the axial flow wind column (3) is provided with a guide groove at the position of the fan blade (34); three the flabellum links firmly same direction circle (35) jointly in the guiding groove position, and direction circle (35) rotate to be connected in the inside of guiding groove.

4. The high temperature resistant axial flow fan of claim 3, wherein: the guide ring (35) is provided with rolling grooves which are uniformly distributed relative to the side surface of one side of the bottom of the guide groove; the inside of rolling groove all rolls and is connected with ball (36), and roll connection between the tank bottom surface of ball (36) and guide way.

5. The high-temperature resistant axial flow fan according to claim 1, characterized in that: sliding grooves are formed in the fan blades (34), and notches of the sliding grooves face the direction deviating from the rotating direction of the fan blades (34); extension plates (37) are connected inside the sliding grooves in a sliding manner; the extension plate (37) and the bottom of the corresponding sliding groove are connected with uniformly arranged springs.

6. The high temperature resistant axial flow fan of claim 5, wherein: the rotating column (32) is provided with adjusting holes at the positions of the fan blades; telescopic columns (38) are arranged inside the adjusting holes; the number of the telescopic columns (38) in each adjusting hole is two, the telescopic columns are respectively located at different angle positions of the rotating column (32), and the fan blades (34) are fixedly connected with the corresponding two telescopic columns (38).

Technical Field

The invention belongs to the technical field of axial flow fans, and particularly relates to a high-temperature-resistant axial flow fan.

Background

Axial fans are airflow in the same direction as the axis of the fan blades, such as electric fans, and fans outside air conditioners are axial fans which are called axial flow type because air flows parallel to the axis of the fan. Axial flow fans are typically used in applications where flow requirements are high and pressure requirements are low. The axial flow fan can be divided into a steel fan, an anticorrosive fan, a PVC fan, a stainless steel fan and the like.

The general axial flow fan can be used for ventilation in places such as general factories, warehouses, offices, and houses, and can also be used for forced ventilation of air coolers (air coolers), evaporators, condensers, and the like.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that in the prior art, a motor output shaft of an axial flow fan is coaxial with a rotating column, high-temperature gas can be directly contacted with a motor to heat the motor for a long time, the heat dissipation of the motor is not facilitated, the temperature rise of the motor can be aggravated, the normal use of the motor is influenced, and even the motor is damaged, and meanwhile, the motor with a larger size can seriously influence the high-temperature gas to pass through a vent of the axial flow wind column, so that the flow resistance of the high-temperature gas is greatly increased, the working load of the motor is aggravated, and the like.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a high-temperature-resistant axial flow fan which comprises a mounting bracket, a motor and an axial flow air column, wherein the mounting bracket is arranged on the motor; the mounting bracket is designed to be of a frame structure; a support frame is fixedly connected to one side of the upper surface of the mounting bracket, which is close to the mounting bracket; the upper surface of the support frame is fixedly connected with a motor; a seat board is fixedly connected to one side of the upper surface of the mounting support, which is close to the support frame; the number of the seat plates is two, and the seat plates are symmetrically arranged from front to back; the upper surfaces of the two seat plates are fixedly connected with the same axial flow air column; the front end surface of the axial flow wind column is provided with a ventilation opening which is communicated from front to back; a fixed rod is fixedly connected to the side surface of one side, close to the motor output shaft, of the inner arc surface of the axial flow wind column; the number of the fixed rods is three, and the fixed rods are uniformly arranged by taking the axis of the axial flow wind column as the center; the three fixed rods are connected with the same rotating column in a rotating mode at the axial line position of the axial flow wind column; a driven belt pulley is arranged on the side face of the rotating column, which is located on one side of the output shaft of the motor, and the driven belt pulley is located on the outer side of the axial flow wind column; the output shaft of the motor is provided with a driving belt pulley, and the driving belt pulley and the driven belt pulley are correspondingly arranged on the same plane; the same transmission belt is connected between the driving belt pulley and the driven belt pulley; the outer arc surface of the rotating column is connected with a fan blade at a position far away from the driven pulley; the number of the fan blades is three, and the fan blades are uniformly arranged by taking the axis of the rotating column as the center; when the axial-flow blower works, when high-temperature gas is blown in an axial-flow mode, a motor of a traditional axial-flow blower is arranged at a position coaxial with a rotating column, so that the high-temperature gas can be continuously blown through the surface of the motor to heat the motor for a long time, the heat dissipation of the motor is not facilitated, the temperature rise of the motor is aggravated, the normal use of the motor is influenced, even when the temperature is higher, the problem of motor damage is caused, meanwhile, in order to meet larger working load, the motor which is often used is larger in size, but the motor is directly coaxial with the rotating column, the motor with larger size can seriously influence the high-temperature gas to pass through a vent of the axial-flow wind column, so that the flowing resistance of the high-temperature gas is greatly increased, the working load of the motor is increased, therefore, through the arrangement of a transmission belt, a power supply is firstly switched, the high-temperature gas can pass through the ventilation opening of the axial flow wind column under the rotating condition of the fan blades, on one hand, the motor is not arranged in the ventilation opening, so that the air flow resistance can be greatly reduced, the energy is saved, and the working load is reduced; on the other hand, the problem that the high-temperature gas flowing through the vent directly contacts with the motor to influence the normal operation of the motor is solved effectively by the high-temperature resistant axial flow fan, the problems that in the prior art, the motor output shaft of the axial flow fan is coaxial with the rotating column, the high-temperature gas can directly contact with the motor to heat the motor for a long time, the heat dissipation of the motor is not facilitated, the temperature rise of the motor is aggravated, the normal use of the motor is influenced, even the motor is damaged, meanwhile, the motor with larger volume can seriously influence the high-temperature gas to pass through the vent of the axial flow wind column, so that the flowing resistance of the high-temperature gas is greatly increased, the working load of the motor is aggravated and the like are solved, the output shaft of the motor is not coaxial with the rotating column, the air flow resistance of the high-temperature gas in the vent is effectively reduced, the, meanwhile, the long-time normal working operation under the high-temperature condition can be ensured.

Preferably, the driving belt pulley is in threaded connection with the outer arc surface of the output shaft of the motor, and the driven belt pulley is in threaded connection with the rotating column; the outer arc surfaces of the driving belt pulley and the driven belt pulley are provided with uniformly distributed transmission grooves; the diameter of the bottom of the transmission groove is changed in a gradient manner; the transmission outer diameter of the driving belt pulley is larger than that of the driven belt pulley; the during operation, in order to realize the operation requirement under the different conditions, consequently often need the drive ratio of adjustment motor and rotation post, in order to reach the requirement of airing exhaust of difference, consequently, the driving groove of evenly arranging is seted up through the extrados with driving pulley and driven pulley, and the tank bottom diameter size of driving groove is the gradient and changes, can be very big satisfy different drive ratio requirements, and driving pulley's transmission external diameter all is greater than driven pulley's transmission external diameter, can effectually realize the output shaft rotational speed that the rotation post all is greater than the motor under the different drive ratio condition, can effectual improvement to high-temperature gas's logical row efficiency.

Preferably, the inner arc surface of the axial flow wind column is provided with a guide groove at the position of the fan blade; the three fan blades are fixedly connected with the same guide ring at the position of the guide groove, and the guide ring is rotatably connected inside the guide groove; the during operation, in order to further reduce the air flow resistance of the vent of axial compressor wind post, consequently can use the less dead lever of diameter to realize fixed the basis to the rotation post, but because the less dead lever of diameter, intensity is lower, be difficult to satisfy the stable fixed to the rotation post, consequently when using, the rotation post appears rotating off-centre easily and rocks, in order to further solve this problem, through setting up the guide ring, rotate at the inside of guide way through the guide ring, can realize effectively fixing to the rotation post.

Preferably, the guide ring is provided with rolling grooves which are uniformly distributed relative to the side surface of one side of the bottom of the guide groove; the rolling balls are connected inside the rolling grooves in a rolling manner, and the rolling balls are connected with the bottom surfaces of the guide grooves in a rolling manner; during operation, because the guide ring rotates in the inside of guide way, consequently can produce certain frictional force, influence the work efficiency of motor, hinder the rotation of fan blade, through setting up the ball, through the spacing roll of ball in the inside of rolling the groove to and roll in the inside of guide way, reduction that can be very big rotates frictional force, has improved the rotation smoothness nature of guide ring and fan blade.

Preferably, sliding grooves are formed in the fan blades, and notches of the sliding grooves face the direction away from the rotation direction of the fan blades; extension plates are connected inside the sliding grooves in a sliding mode; uniformly arranged springs are connected between the extension plate and the bottom of the corresponding sliding groove; the during operation, because traditional fan blade is fixed structure, consequently adjust different logical row efficiency, can only be through the slew velocity of adjusting drive ratio or adjustment motor, in order to improve the regulation effect, realize adjusting more automatic, through setting up the extension board, slide in the inside of sliding tray through extending the board, when the rotational speed of rotating the post on the same day improves, can make the spring tensile, and then drive the notch that the extension board stretches out the sliding tray, increase the effective area of fan blade, help improving wind-force effect.

Preferably, the rotating column is provided with adjusting holes at the positions of the fan blades; telescopic columns are arranged inside the adjusting holes; the number of the telescopic columns in each adjusting hole is two, the telescopic columns are respectively positioned at different angle positions of the rotating column, and the fan blades are fixedly connected with the two corresponding telescopic columns; during operation, for further improvement wind-force regulation effect, through setting up flexible post, through the flexible of flexible post, the angle that sets up of control fan blade that can be quick, and then the increase fan blade that can be quick leads to the effect of airing exhaust, further improves the effect of adjusting.

The invention has the following beneficial effects:

1. the invention relates to a high-temperature-resistant axial flow fan, which is characterized in that a mounting bracket, a motor and an axial flow air column are arranged, a support frame is fixedly connected to one side position close to the mounting bracket through the upper surface of the mounting bracket, the upper surface of the support frame is fixedly connected with the motor, seat plates are fixedly connected to one side position close to the support frame through the upper surface of the mounting bracket, the number of the seat plates is two, the seat plates are symmetrically arranged from front to back, the upper surfaces of the two seat plates are fixedly connected with the same axial flow air column together, a driving belt pulley is driven to rotate through the rotation of an output shaft of the motor, the driving belt pulley drives a transmission belt to move, the transmission belt further drives a driven belt pulley to rotate, the driven belt pulley further drives a rotating column to rotate, the rotating column can drive a fan blade to rotate, high-temperature gas passes through, energy is saved, and the work load is reduced; on the other hand has avoided the high-temperature gas that the vent flows direct with the motor contact influence the normal operating of motor, has realized the output shaft and the rotation post disalignment of motor, effectual reduction high-temperature gas is at the intraoral air flow resistance of vent, has avoided high-temperature gas to the influence of motor normal operating, the effectual life who improves this axial fan, can guarantee the long-time normal work operation under the high temperature condition simultaneously.

2. The high-temperature-resistant axial flow fan is provided with the guide ring, the rolling balls and the extension plate, the guide groove is formed in the position of each fan blade through the inner arc surface of the axial flow wind column, the three fan blades are fixedly connected with the same guide ring together in the position of the guide groove, the guide ring is rotatably connected to the inside of the guide groove, the guide ring is provided with rolling grooves which are uniformly arranged relative to the side surface of one side of the bottom of the guide groove, the rolling balls are connected to the inside of the rolling grooves in a rolling manner, the rolling balls are connected with the bottom surface of the guide groove in a rolling manner, the inside of each fan blade is provided with the sliding grooves, the notches of the sliding grooves face away from the rotating direction of the fan blade, the inside of each sliding groove is connected with the extension plate in a sliding manner, springs which are uniformly arranged are connected between the extension plate and the bottom of the corresponding sliding groove, and; by arranging the balls, the balls can limit and roll in the rolling grooves and roll in the guide grooves, so that the rotating friction force can be greatly reduced, and the rotating fluency of the guide ring and the fan blades is improved; prolong the board through setting up, slide in the inside of sliding tray through prolonging the board, when the rotational speed of rotating the post on the same day improves, can make the spring tensile, and then drive and prolong the notch that the board stretches out the sliding tray, increase the effective area of fan blade, help improving wind-force effect.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is an external view of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a perspective view of a fan blade of the present invention;

FIG. 4 is an enlarged partial view at A of FIG. 3;

in the figure: the device comprises a mounting bracket 1, a seat plate 11, a motor 2, a support frame 21, a driving belt pulley 22, a transmission belt 23, an axial flow wind column 3, a fixed rod 31, a rotating column 32, a driven belt pulley 33, fan blades 34, a guide ring 35, balls 36, an extension plate 37 and a telescopic column 38.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 4, the high temperature resistant axial flow fan of the present invention includes a mounting bracket 1, a motor 2, and an axial flow wind column 3; the mounting bracket 1 is designed in a frame structure; a support frame 21 is fixedly connected to one side of the upper surface of the mounting bracket 1, which is close to the mounting bracket 1; the upper surface of the support frame 21 is fixedly connected with a motor 2; a seat board 11 is fixedly connected to one side of the upper surface of the mounting bracket 1, which is close to the support frame 21; the number of the seat plates 11 is two, and the seat plates are symmetrically arranged from front to back; the upper surfaces of the two seat plates 11 are fixedly connected with the same axial flow air column 3; the front end surface of the axial flow wind column 3 is provided with a ventilation opening which is communicated from front to back; a fixed rod 31 is fixedly connected to the side surface of one side of the inner arc surface of the axial flow wind column 3, which is close to the output shaft of the motor 2; the number of the fixing rods 31 is three, and the fixing rods are uniformly arranged by taking the axis of the axial flow wind column 3 as the center; the three fixing rods 31 are connected with the same rotating column 32 at the axial line position of the axial flow wind column 3 in a rotating mode; a driven belt pulley 33 is arranged on the side face of the rotating column 32 on one side where the output shaft of the motor 2 is located, and the driven belt pulley 33 is located on the outer side of the axial flow wind column 3; the output shaft of the motor 2 is provided with a driving belt pulley 22, and the driving belt pulley 22 and the driven belt pulley 33 are correspondingly arranged on the same plane; the same transmission belt 23 is connected between the driving pulley 22 and the driven pulley 33; the outer arc surface of the rotating column 32 is connected with a fan blade 34 at a position far away from the driven belt pulley 33; the number of the fan blades 34 is three, and the fan blades are uniformly arranged by taking the axis of the rotating column 32 as the center; when the axial-flow blower works, when high-temperature gas is blown by axial flow, the motor 2 of the traditional axial-flow blower is arranged at a position coaxial with the rotating column 32, so that the high-temperature gas can be continuously blown through the surface of the motor 2, the motor 2 is heated for a long time, the heat dissipation of the motor 2 is not facilitated, the temperature rise of the motor 2 is aggravated, the normal use of the motor 2 is influenced, even when the temperature is higher, the motor 2 is damaged, meanwhile, in order to meet the larger working load, the motor 2 which is often used has a larger volume, but the motor 2 is directly coaxial with the rotating column 32, the high-temperature gas can be seriously influenced by the motor 2 with the larger volume through the ventilation opening of the axial-flow wind column 3, the flowing resistance of the high-temperature gas is greatly increased, so that the working load of the motor 2 can be increased, therefore, through the arrangement of the transmission belt 23, the power, the output shaft of the motor 2 rotates to drive the driving belt pulley 22 to rotate, so that the driving belt pulley 22 drives the transmission belt 23 to move, the transmission belt 23 further drives the driven belt pulley 33 to rotate, the driven belt pulley 33 further drives the rotating column 32 to rotate, the rotating column 32 can drive the fan blades 34 to rotate, and high-temperature gas passes through the ventilation opening of the axial flow wind column 3 under the rotating condition of the fan blades 34, so that on one hand, the air flow resistance can be greatly reduced when the motor 2 is not arranged in the ventilation opening, the energy is saved, and the working load is reduced; on the other hand, the problem that the high-temperature gas flowing through the vent directly contacts the motor 2 to influence the normal operation of the motor 2 is solved, the problem that the high-temperature gas can not only be harmful to the heat dissipation of the motor 2 but also aggravate the temperature rise of the motor 2 to influence the normal use of the motor 2 and even cause the damage of the motor 2 because the high-temperature gas can directly contact the motor 2 to heat the motor 2 for a long time in the prior art is solved effectively by the high-temperature resistant axial flow fan, the problems that the working load of the motor 2 is aggravated and the like because the high-temperature gas passes through the vent of the axial flow wind column 3 because the output shaft of the motor 2 is not coaxial with the rotating column 32 and the air flow resistance of the high-temperature gas in the vent is effectively reduced, and the influence of the high-temperature gas on the normal operation of the motor 2 is avoided, the service life of the axial flow fan is effectively prolonged, and meanwhile, long-time normal working operation under a high-temperature condition can be guaranteed.

As an embodiment of the present invention, the driving pulley 22 is screwed to the outer arc surface of the output shaft of the motor 2, and the driven pulley 33 is screwed to the rotating post 32; the outer arc surfaces of the driving belt pulley 22 and the driven belt pulley 33 are provided with uniformly distributed transmission grooves; the diameter of the bottom of the transmission groove is changed in a gradient manner; the transmission outer diameters of the driving belt pulley 22 are larger than the transmission outer diameters of the driven belt pulleys 33; in operation, in order to realize the operation requirement under the different conditions, consequently often need the drive ratio of adjustment motor 2 and rotation post 32, in order to reach the requirement of airing exhaust of difference, consequently, the driving groove of evenly arranging is seted up through the extrados with driving pulley 22 and driven pulley 33, and the tank bottom diameter size of driving groove is the gradient change, can be very big satisfy different drive ratio requirements, and driving pulley 22's transmission external diameter all is greater than driven pulley 33's transmission external diameter, can effectually realize that rotation post 32 all is greater than motor 2's output shaft rotational speed under the different drive ratio conditions, can effectual improvement to high-temperature gas's logical row efficiency.

As an embodiment of the present invention, the inner arc surface of the axial flow wind column 3 is provided with a guide groove at the position of the fan blade 34; the three fan blades are fixedly connected with the same guide ring 35 at the position of the guide groove, and the guide ring 35 is rotatably connected inside the guide groove; the during operation, in order to further reduce the air flow resistance of axial flow wind post 3's vent, consequently can use the less dead lever 31 of diameter, in order to realize the basis fixed to rotating post 32, but because the less dead lever 31 of diameter, intensity is lower, it is difficult to satisfy the stable fixed to rotating post 32, consequently when using, rotating post 32 appears rotating off-centre easily and rocks, in order to further solve this problem, through setting up guide ring 35, rotate at the inside of guide way through guide ring 35, can realize effectively fixing rotating post 32.

As an embodiment of the present invention, the guide ring 35 is provided with rolling grooves uniformly arranged on a side surface of the guide groove on the groove bottom side; the rolling balls 36 are connected inside the rolling grooves in a rolling mode, and the rolling balls 36 are connected with the bottom surfaces of the guide grooves in a rolling mode; during operation, because the guide ring 35 rotates in the inside of guide way, consequently can produce certain frictional force, influence the work efficiency of motor 2, hinder the rotation of fan blade 34, in order to further reduce frictional force, through setting up ball 36, through ball 36 spacing roll in the inside of roll groove to and roll in the inside of guide way, reduction that can be very big rotates frictional force, has improved the rotation smoothness nature of guide ring 35 and fan blade 34.

As an embodiment of the present invention, sliding grooves are formed in the fan blades 34, and the notches of the sliding grooves face in a direction away from the rotation direction of the fan blades 34; extension plates 37 are connected inside the sliding grooves in a sliding mode; uniformly arranged springs are connected between the extension plate 37 and the bottom of the corresponding sliding groove; the during operation, because traditional fan blade 34 is fixed structure, consequently adjust different logical row efficiency, can only be through adjusting drive ratio or adjustment motor 2's slew velocity, in order to improve the regulation effect, realize adjusting more automatic, through setting up extension board 37, slide in the inside of sliding tray through extension board 37, when the rotational speed that rotates post 32 on the same day improves, can make the spring tensile, and then drive the notch that extension board 37 stretches out the sliding tray, increase the effective area of fan blade 34, help improving wind-force effect.

As an embodiment of the present invention, the rotating column 32 is provided with adjusting holes at the positions of the fan blades; telescopic columns 38 are arranged inside the adjusting holes; the number of the telescopic columns 38 in each adjusting hole is two, the telescopic columns are respectively located at different angle positions of the rotating column 32, and the fan blades 34 are fixedly connected with the two corresponding telescopic columns 38; during operation, for further improvement wind-force regulation effect, through setting up flexible post 38, through the flexible of flexible post 38, the angle that sets up of control fan blade 34 that can be quick, and then increase fan blade 34 that can be quick leads to the effect of airing exhaust, further improves the effect of adjusting.

The specific working process is as follows:

when the axial-flow blower works, when high-temperature gas is blown in an axial-flow manner, the motor 2 of the traditional axial-flow blower is arranged at a position coaxial with the rotating column 32, so that the high-temperature gas can be continuously blown through the surface of the motor 2, the motor 2 is heated for a long time, the heat dissipation of the motor 2 is not facilitated, the temperature rise of the motor 2 is aggravated, the normal use of the motor 2 is influenced, even when the temperature is higher, the motor 2 is damaged, meanwhile, in order to meet the larger working load, the motor 2 which is often used has a larger volume, but the motor 2 is directly coaxial with the rotating column 32, the high-temperature gas can be seriously influenced by the motor 2 with the larger volume to pass through the ventilation opening of the axial-flow wind column 3, so that the flowing resistance of the high-temperature gas is greatly increased, the working load of the motor 2 can be increased, the power supply is firstly switched on, the output shaft of the motor 2 rotates to drive the driving belt pulley 22 to rotate, so that the driving belt pulley 22 drives the transmission belt 23 to move, the transmission belt 23 further drives the driven belt pulley 33 to rotate, the driven belt pulley 33 further drives the rotating column 32 to rotate, the rotating column 32 can drive the fan blades 34 to rotate, and high-temperature gas passes through the ventilation opening of the axial flow wind column 3 under the rotating condition of the fan blades 34, so that on one hand, the air flow resistance can be greatly reduced when the motor 2 is not arranged in the ventilation opening, the energy is saved, and the working load is reduced; on the other hand, the high-temperature gas flowing through the ventilation opening is prevented from directly contacting the motor 2, so that the normal operation of the motor 2 is prevented from being influenced; the transmission grooves which are uniformly distributed are formed in the outer arc surfaces of the driving belt pulley 22 and the driven belt pulley 33, the diameters of the bottoms of the transmission grooves are changed in a gradient manner, requirements of different transmission ratios can be greatly met, the transmission outer diameter of the driving belt pulley 22 is larger than that of the driven belt pulley 33, and the rotating speed of the rotating column 32 is larger than that of the output shaft of the motor 2 under the condition of different transmission ratios; by arranging the guide ring 35, the rotating column 32 can be effectively fixed by rotating the guide ring 35 in the guide groove; by arranging the ball 36, the ball 36 can limit and roll in the rolling groove and roll in the guide groove, so that the rotating friction force can be greatly reduced; prolong board 37 through setting up, slide in the inside of sliding tray through prolonging board 37, when the rotational speed that rotates post 32 on the day improves, can make the spring tensile, and then drive and prolong the notch that board 37 stretches out the sliding tray, increase the effective area of fan blade 34.

While there have been shown and described what are at present considered the fundamental principles of the invention, its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.