CN111299148B

CN111299148B - Axial flow fan

Info

Publication number: CN111299148B
Application number: CN201911120468.3A
Authority: CN
Inventors: 苏生鹏; 李智; 郑豪
Original assignee: Zhejiang Linggong Electric Co ltd
Current assignee: Zhejiang linggong Electric Co.,Ltd.
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2021-07-13
Anticipated expiration: 2039-11-15
Also published as: CN111299148A

Abstract

The invention belongs to the technical field of fans, and particularly relates to an axial flow fan which comprises a sieve box, a suction head and a motor, wherein the sieve box is arranged on the top of the sieve box; the sieve box is designed into a cuboid structure; a cavity is formed in the sieve box; a horizontally placed screen is arranged in the cavity; the side surface of the left side of the screen box is fixedly connected with a suction pipe, and the other end of the suction pipe is fixedly connected with a suction head; the right side surface of the sieve box is fixedly connected with an air pipe; a motor is arranged inside the air pipe; the outer surface of the sieve box is provided with a fan blade, a solar cell panel and a storage battery; the wheat grain separator effectively solves the problems that wheat grains need to be continuously added into the machine by manpower in the wheat impurity removing process, the labor intensity is high, the efficiency is low, meanwhile, for small stones similar to the wheat grains in size, the separating effect is poor, the power consumption of the machine is high, the cost is high, special stay wires are needed for power connection, and the like, is not limited by environmental conditions, is convenient and simple to use, greatly reduces the labor intensity of workers, and has high practicability.

Description

Axial flow fan

Technical Field

The invention belongs to the technical field of fans, and particularly relates to an 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.

Wheat is a general name of wheat plants, is a monocotyledon, is a gramineous plant widely planted all over the world, has caryopsis as one of staple food of human beings, and can be used for making foods such as bread, steamed bread, biscuits, noodles and the like after being ground into flour; after fermentation, the wheat can be made into beer, alcohol, white spirit (such as vodka) or biomass fuel, the wheat is one of three grains, almost all the grains are eaten, only about one sixth of the grains are used as feed, two river basins are the areas where wheat is cultivated at the earliest in the world, and China is one of the countries where wheat is cultivated at the earliest in the world.

After the wheat reaped the completion, can adulterate a lot of impurity in the wheat, like straw, wheat husk and grass seed etc, and accomplish and reap the in-process that carries out the sunning after, the inside of wheat also can adulterate a lot of dusts, consequently need go on before carrying out the envelope and store and go on miscellaneous processing, traditional wheat goes miscellaneous mode and all picks up or raise modes such as wheat through the manual work, but be limited by environmental condition, among the prior art, raise the wheat machine and need the manual work constantly toward adding the wheat in the machine, high labor strength, low efficiency, simultaneously to the tiny stone block with wheat size similarity, the separation effect is relatively poor, and machine power consumption is big, high cost, need specially to act as go-between to connect the electricity, environmental condition restrictive nature is strong.

Disclosure of Invention

The invention provides an axial flow fan, which aims to make up the defects of the prior art and solve the problems that wheat grains need to be continuously added into a machine by manpower in the wheat raising machine in the prior art, the labor intensity is high, the efficiency is low, small stones similar to the wheat grains in size are poor in separation effect, the power consumption of the machine is high, the cost is high, special stay wires are needed for power connection, the restriction on environmental conditions is strong, and the like.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an axial flow fan, which comprises a sieve box, a suction head and a motor, wherein the sieve box is arranged on the top of the sieve box; the sieve box is designed into a cuboid structure; a cavity is formed in the sieve box; a horizontally placed screen is arranged in the cavity, and the side surfaces of the screen are fixedly connected with the inner surface of the screen box; the right side surface of the sieve box is fixedly connected with an air pipe; an air outlet is formed in the position, where the air pipe is located, of the right side surface of the screen box; the inner surface of the air pipe is fixedly connected with a vertically placed supporting plate, and the supporting plates are uniformly arranged by taking the axis of the air pipe as the center; the right side surfaces of the supporting plates are fixedly connected with the same motor; the left end face of the output shaft of the motor is fixedly connected with a rotating column, and the rotating column is positioned at the left position of the supporting plate; the cambered surface of the rotating column is fixedly connected with rotating blades which are uniformly arranged; an air inlet is formed in the left end face of the screen box above the screen; a suction pipe is fixedly connected to the left end face of the screen box at the air inlet; the suction head is fixedly connected with the left end face of the suction pipe; the inner surface of the screen box is fixedly connected with an arc-shaped baffle at the right side position of the air inlet; the upper surface of the screen box is rotatably connected with uniformly arranged air columns; the top of the wind column is fixedly connected with uniformly arranged fan blades; the upper surface of the screen box is provided with solar cell panels which are obliquely arranged at the front edge position and the rear edge position of the upper surface of the screen box; a falling plate which is obliquely arranged from front to back is fixedly connected to the bottom of the screen box in the cavity, and the front bottom of the falling plate is higher than the back bottom of the falling plate; an outlet is formed in the position, on the falling plate, of the front end surface of the screen box; the front end surface of the screen box is fixedly connected with a guide plate at the outlet position; the left side surface of the screen box is fixedly connected with a storage battery at the position below the suction pipe; the lower surface of the screen box is fixedly connected with support columns which are uniformly distributed; when the wheat harvester is in operation, after wheat is harvested, a lot of impurities such as straws, wheat husks, grass seeds and the like are doped in wheat grains, and in the process of airing after harvesting, a lot of dust is doped in the wheat grains, so impurity removal treatment needs to be carried out before bag sealing and storage, firstly, the aired wheat is collected into a pile, then, a power supply of an axial flow fan is turned on, a motor rotates to drive a rotating column to rotate, and further a rotating blade rotates, the rotating blade can continuously suck air in a cavity of a screen box rightwards, an air inlet of the screen box is fixedly connected with a suction pipe, so that the suction head can continuously suck air from the outside, and further the air can enter the cavity from an air inlet through the suction pipe, and because the air inlet is smaller than an air outlet, the air flow through the suction pipe is faster, the suction force of the suction head is larger, at the moment, the suction pipe with the suction head is manually lifted, at the moment, the suction head can suck the wheat with impurities, then the wheat can pass through the suction pipe and further enter the cavity through the air inlet, because the mass of the straw, the dust and the grass seeds is smaller, the left-right wind in the cavity can blow the straw, the dust and the grass seeds away and discharge the wheat through the air pipe, meanwhile, heavier wheat grains can pass through the screen mesh and fall downwards, the straw which is not blown away in time can not pass through the screen mesh due to larger volume, so the impurity removal effect of the wheat grains is further improved, the wheat grains which enter the cavity at high speed through the air inlet are intercepted and fall above the screen mesh by arranging the arc-shaped baffle plate, the wheat grains are prevented from directly flying into the air pipe under the inertia effect, and fly out together with the impurities, so that partial wheat is divided into the impurities to cause the waste of grains, on one hand, the opening size and the limited suction force of the suction head are realized through the suction pipe and the suction head, so that heavier or larger stones or soil blocks can not be sucked, realizes the effective separation of heavy impurities, on the other hand, directly sucks wheat grains through the suction head, does not need to manually and continuously add the wheat grains into the sieve box, saves manpower, meanwhile, the efficiency is greatly improved, wind energy and solar energy can be effectively collected through the fan blades and the solar cell panel and stored in the storage battery, when the solar energy storage battery works, can directly use clean energy stored in the storage battery, is convenient and simple, saves energy and protects environment, solves the problems that the prior art needs to continuously add wheat grains into a machine by manpower, has higher labor intensity and lower efficiency, meanwhile, for small stones similar to wheat grains in size, the separation effect is poor, the power consumption of the machine is high, the cost is high, the problems of special guy wire connection and power connection are solved, the limitation of environmental conditions is avoided, the use is convenient and simple, the labor intensity of workers is greatly reduced, and the practicability is high.

Preferably, the inner surface of the screen box is fixedly connected with a circle of uniformly arranged supporting blocks at the position below the screen cloth; a vibrating screen plate is arranged on the inner surface of the screen box below the supporting block, and first springs which are uniformly arranged are fixedly connected to the upper surface of the vibrating screen plate; the number of the first springs is equal to that of the supporting blocks, and the first springs are fixedly connected with the lower surfaces of the corresponding supporting blocks; when the wheat anti-pollution filter is in operation, when impurities in wheat are more, the wheat directly falls into the screen, partial impurities easily pass through the screen together with the wheat and fall onto a falling plate of the screen box, the wheat impurity separation effect of the wheat is influenced, the vibrating screen plate is arranged below the screen, the filtered wheat on the screen can fall onto the vibrating screen plate, the vibrating screen plate can generate gravity impact on the vibrating screen plate by the aid of vibration generated by rotation of the axial flow fan and deformation of the first spring, the vibrating screen plate further vibrates, on one hand, the vibrating screen plate can achieve effective secondary filtration and increase the filtration effect, on the other hand, the vibration of the vibrating screen plate can enable the wheat to be uniformly spread on the vibrating screen plate, so that the impurities in the wheat can be fully separated by wind, meanwhile, the rapid infiltration filtration is facilitated, and the filtration efficiency is improved, excessive wheat is placed on the vibrating sieve plate to be accumulated, so that the vibrating effect is reduced.

Preferably, the left side surface of the screen box is provided with an air supplementing hole at a position between the screen and the vibrating screen plate; a branch hole is formed in the position, close to the left end face of the screen box, of the lower surface of the suction pipe; the outer surface of the suction pipe is fixedly connected with a branch pipe at the position of the branch hole, and the right side surface of the branch pipe is fixedly connected with the left side surface of the screen box at the position of the air replenishing hole; the inner surface of the suction pipe is rotatably connected with a rotating plate at the position of the branch hole; the surface of the rotating plate is provided with small holes which are uniformly distributed; the lower surface of the rotating plate is fixedly connected with a second spring; when the device works, due to the action of the arc-shaped baffle, part of gas guided into the screen box by the air inlet can flow downwards quickly to influence the filtering effect of the left side position of the vibrating screen plate, meanwhile, due to the fact that the air inlet is positioned above the screen, when more wheat is accumulated on the screen, the conduction of air flow on the screen can be influenced, the air speed below the screen is greatly influenced, and the filtering effect of the vibrating screen plate is further influenced, therefore, by arranging the rotating plate and the second spring, when wheat is effectively guided, part of gas can enter the branch pipe through the small holes and the openings above the rotating plate, further the air supplement to the position below the screen is realized, meanwhile, the wheat is sucked into the suction pipe quickly to impact the rotating plate, so that the second spring is compressed, the openings above the rotating plate are reduced, and the wheat and larger impurities are effectively prevented from entering the branch pipe, affecting the impurity removing effect of wheat separation.

Preferably, the right end face of the air pipe is sleeved with a collecting bag; the during operation, when impurity is separated out in the wheat, if pass the tuber pipe and directly outwards discharge, can seriously influence the on-the-spot environment of wheat edulcoration, if doping the dust in the wheat, also can lead to the raise dust phenomenon, influence the healthy of workman's lung on the one hand, on the other hand later stage clearance is also comparatively troublesome, consequently through receiving the collection bag at the tuber pipe overcoat, has reduced the deterioration of wheat edulcoration site environment, has saved the time of clearance impurity.

Preferably, the surfaces of the fan blades are provided with uniformly arranged wind response holes; the during operation, when sunning wheat on daytime, often can attract the thief to eat wheat, can put near the wheat sunning with this axial fan this moment, and ventilate and charge under the good sun, because wind-force effect fan blade rotates, also can make the wind response hole sound on fan blade surface simultaneously, can effectually carry out the expulsion to the thief.

Preferably, the solar cell panel is rotatably connected with the outer surface of the screen box; a cover is covered above the sieve box; the during operation, when the machine during operation, near there is certain raise dust, the raise dust falls on solar cell panel, all need clean the clearance at every turn, waste time and energy, but if not carrying out effectual clearance then can influence the efficiency that charges next time, simultaneously if the dust falls into the wind response of fan blade downthehole, also can influence the fan blade and make a sound, consequently through being connected solar cell panel design and sieve case rotation, when the wheat needs the edulcoration, can upwards rotate solar cell panel, cover the shroud again on simultaneously, can effectually protect solar cell panel and fan blade, simultaneously when the machine does not use, also can effectual protection fan blade and solar cell panel, prevent to receive and collide with the loss, influence the use.

Preferably, the inner surface of the air pipe is fixedly connected with a pneumatic membrane, and the pneumatic membrane is in a loose state; the during operation, when impurity in the wheat passed the tuber pipe, there was some impurity to be detained in the tuber pipe, be difficult to the clearance, and can influence the effect of wheat edulcoration, and the difficult homogeneity that realizes sieve incasement portion air flow of rotation blade, through the pnematic membrane that sets up the relaxed state in the tuber pipe, the pnematic membrane of flow can be disturbed in the tuber pipe, prevent that the delay of impurity from piling up, also can disturb the air current simultaneously, make the wind direction constantly adjust, and then realize the whole homogeneity of sieve incasement air current.

The invention has the following beneficial effects:

1. the axial flow fan of the invention effectively realizes automatic wheat grain suction by arranging the screen box, the suction head and the motor, fixedly connecting the suction pipe on the left side surface of the screen box, fixedly connecting the suction head at the other end of the suction pipe, fixedly connecting the air pipe on the right side surface of the screen box and arranging the motor in the air pipe, does not need to continuously add the wheat grains into the screen box manually, saves manpower, greatly improves efficiency, has limited opening size and suction force of the suction head on the other hand, so that heavier or larger stones or soil blocks cannot be sucked into a cavity, realizes effective separation of heavy objects and impurities, simultaneously drives the rotating blades to rotate by the motor, leads air to rapidly flow, realizes effective separation of the wheat and the impurities sucked into the screen box, effectively solves the problem that the wheat grains need to be continuously added into a machine manually in the prior art, and has higher labor intensity, efficiency is lower, simultaneously to the little stone similar with the wheat size, the relatively poor scheduling problem of separation effect, convenient to use is simple, very big reduction labourer's intensity of labour, the practicality is higher.

2. According to the axial flow fan, the blades, the solar cell panel and the storage battery are arranged, the rotation of the blades and the wind sounding holes formed in the blades are utilized effectively, when wheat is aired, the open environmental conditions are utilized to carry out wind power generation, the wind sounding holes in the blades can make continuous sound under the action of wind power, birds nearby the aired wheat can be driven, the wheat is prevented from being eaten by the birds, the solar cell panel can be used for effectively generating power and storing the power into the storage battery, when the wheat is required to be decontaminated, the motor can be directly driven to rotate by the electricity in the storage battery, special wire drawing for power connection is not needed, the limit of the environmental conditions is avoided, the power consumption cost is saved, and the axial flow fan is convenient and simple to use.

Drawings

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

FIG. 1 is a perspective view of the present invention when not charging;

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

FIG. 3 is a cross-sectional view of the present invention during charging;

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

in the figure: the device comprises a screen box 1, a cavity 11, a screen 12, an air column 13, fan blades 14, a solar cell panel 15, a falling plate 16, a storage battery 17, a vibrating screen plate 18, a first spring 19, an air hole 110, a cover cap 111, a suction head 2, a suction pipe 21, an arc baffle 22, a branch pipe 23, a rotating plate 24, a small hole 25, a second spring 26, a motor 3, an air pipe 31, a support plate 32, a rotating column 33, a rotating blade 34, an air-driven film 35 and a collecting bag 36.

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 axial flow fan of the present invention includes a sieve box 1, a suction head 2 and a motor 3; the sieve box 1 is designed to be of a cuboid structure; a cavity 11 is formed in the sieve box 1; a horizontally placed screen 12 is arranged in the cavity 11, and the side surfaces of the screen 12 are fixedly connected with the inner surface of the screen box 1; the right side surface of the sieve box 1 is fixedly connected with an air pipe 31; an air outlet is formed in the position, where the air pipe 31 is located, of the right side surface of the screen box 1; the inner surface of the air pipe 31 is fixedly connected with a vertically placed support plate 32, and the support plates 32 are uniformly arranged by taking the axis of the air pipe 31 as the center; the right side surfaces of the supporting plates 32 are fixedly connected with the same motor 3; the left end face of the output shaft of the motor 3 is fixedly connected with a rotating column 33, and the rotating column 33 is positioned at the left position of the supporting plate 32; the arc surface of the rotating column 33 is fixedly connected with rotating blades 34 which are uniformly arranged; an air inlet is formed in the left end face of the screen box 1 above the screen 12; a suction pipe 21 is fixedly connected to the left end face of the screen box 1 at the air inlet; the suction head 2 is fixedly connected with the left end face of the suction pipe 21; the inner surface of the screen box 1 is fixedly connected with an arc-shaped baffle 22 at the right side position of the air inlet; the upper surface of the screen box 1 is rotatably connected with uniformly arranged air columns 13; the top of the wind column 13 is fixedly connected with uniformly arranged fan blades 14; the upper surface of the screen box 1 is provided with solar cell panels 15 which are obliquely arranged at the front edge position and the rear edge position of the upper surface of the screen box 1; a falling plate 16 which is obliquely arranged from front to back is fixedly connected to the bottom of the screen box 1 in the cavity 11, and the front bottom of the falling plate 16 is high; an outlet is formed in the position, on the falling plate 16, of the front end surface of the screen box 1; the front end surface of the screen box 1 is fixedly connected with a guide plate at an outlet position; the left side surface of the screen box 1 is fixedly connected with a storage battery 17 at the position below the suction pipe 21; the lower surface of the sieve box 1 is fixedly connected with support columns which are uniformly arranged; when the machine works, after wheat is harvested, a lot of impurities such as straws, wheat husks, grass seeds and the like are doped in wheat grains, and in the process of airing after harvesting, a lot of dust is doped in the wheat grains, so impurity removal treatment needs to be carried out before bag sealing and storage, firstly, the aired wheat is collected into a pile, then, a power supply of an axial flow fan 3 is turned on, the motor 3 rotates to drive a rotating column 33 to rotate, further, a rotating blade 34 rotates, the rotating blade 34 can suck air in a cavity 11 of a screen box 1 towards the right continuously, as an air inlet of the screen box 1 is fixedly connected with a suction pipe 21, the suction head 2 can suck air from the outside continuously, further, the air can enter the cavity 11 from the air inlet through the suction pipe 21, as the air inlet is smaller than the air outlet, the air flow through the suction pipe 21 is faster, further, the suction force of the suction head 2 is larger, at the moment, the suction pipe 21 with the suction head 2 is, the suction head 2 faces towards the wheat heap, the wheat with impurities is sucked by the suction head 2 at the moment, then the wheat passes through the suction pipe 21 and further enters the cavity 11 through the air inlet, because the quality of the straw, the dust and the grass seeds is small, the straw, the dust and the grass seeds are blown away by the left-right air in the cavity 11 and are discharged through the air pipe 31, meanwhile, heavier wheat grains can pass through the screen 12 and fall downwards, the straw which is not blown away in time can not pass through the screen 12 due to large volume, so that the impurity removal effect of the wheat grains is further improved, the wheat grains which enter the cavity 11 at high speed through the air inlet are intercepted and fall into the upper part of the screen 12 through the arc-shaped baffle plate 22, the wheat grains are prevented from directly flying into the air pipe 31 under the action of inertia and flying out together with the impurities, so that partial wheat grains are separated into the impurities, waste of the grains is caused, the suction pipe 21 and the suction head 2, on one hand, the opening size and the suction force of the suction head 2 are limited, so that heavier or larger stones or soil blocks cannot be sucked into the cavity 11 to realize effective separation of heavy impurities, on the other hand, the wheat grains are directly sucked through the suction head 2, the manual work is not needed to be continuously added into the screen box 1, the labor is saved, meanwhile, the efficiency is greatly improved, the wind energy and the solar energy can be effectively collected through the fan blades 14 and the solar cell panel 15 and stored into the storage battery 17, when the work is needed, clean energy stored in the storage battery 17 can be directly used, the axial flow fan is convenient, simple, energy-saving and environment-friendly, the problems that in the prior art, the wheat grains need to be continuously added into a machine by manpower, the labor intensity is higher, the efficiency is lower, meanwhile, the separation effect on small stones with the size similar to the wheat grains is poorer, the power consumption of the machine is large, and the, the cable connecting device has the advantages that the cable connecting device is specially required to connect the power and the like, is not limited by environmental conditions, is convenient and simple to use, greatly reduces the labor intensity of workers, and has higher practicability.

As an embodiment of the present invention, a circle of uniformly arranged supporting blocks is fixedly connected to the inner surface of the screen box 1 at a position below the screen 12; a vibrating screen plate 18 is arranged on the inner surface of the screen box 1 below the supporting block, and first springs 19 which are uniformly arranged are fixedly connected to the upper surface of the vibrating screen plate 18; the number of the first springs 19 is equal to that of the supporting blocks, and the first springs 19 are fixedly connected with the lower surfaces of the corresponding supporting blocks; when the wheat trash separator works, when the impurities in the wheat are more, the wheat directly falls into the screen 12, and partial impurities easily pass through the screen 12 together with the wheat and fall into the falling plate 16 of the screen box 1, so that the wheat trash separation effect is influenced, the vibrating screen plate 18 is arranged below the screen 12, the filtered wheat on the screen 12 can fall onto the vibrating screen plate 18, the wheat dropped in cooperation can generate gravity impact on the vibrating screen plate 18 due to the vibration generated by the rotation of the axial flow fan 3, so that the first spring 19 is deformed, the vibrating screen plate 18 vibrates, on one hand, the vibrating screen plate 18 can play an effective secondary filtering role, the filtering effect is improved, on the other hand, the vibration of the vibrating screen plate 18 can enable the wheat to be uniformly spread on the vibrating screen plate 18, so that the impurities mixed in the wheat can be sufficiently separated by wind, and meanwhile, the rapid infiltration filtering is facilitated, the filtering efficiency is improved, excessive wheat is placed and accumulated on the vibrating sieve plate 18, and the vibration effect is reduced.

As an embodiment of the present invention, the left side surface of the screen box 1 is provided with an air supply hole between the screen 12 and the vibrating screen plate 18; a branch hole is formed in the position, close to the left end face of the screen box 1, of the lower surface of the suction pipe 21; the outer surface of the suction pipe 21 is fixedly connected with a branch pipe 23 at a branch hole position, and the right side surface of the branch pipe 23 is fixedly connected with the left side surface of the sieve box 1 at an air supply hole position; the inner surface of the suction pipe 21 is rotatably connected with a rotating plate 24 at the position of the support hole; the surface of the rotating plate 24 is provided with small holes 25 which are uniformly distributed; the lower surface of the rotating plate 24 is fixedly connected with a second spring 26; during operation, due to the action of the arc-shaped baffle 22, part of the gas introduced into the sieve box 1 from the air inlet can flow rapidly downwards to affect the filtering effect of the left side position of the vibrating sieve plate 18, and meanwhile, due to the fact that the air inlet is located above the sieve 12, when more wheat is accumulated on the sieve 12, the conduction of the air flow above and below the sieve 12 can be affected, the air speed below the sieve 12 is greatly affected, and further the filtering effect of the vibrating sieve plate 18 is affected, therefore, by arranging the rotating plate 24 and the second spring 26, when wheat is effectively introduced, part of the gas can enter the branch pipe 23 through the small hole 25 and the opening above the rotating plate 24, and further the air supplement to the position below the sieve 12 is realized, meanwhile, because the wheat is rapidly sucked into the suction pipe 21, the impact can be generated on the rotating plate 24, and further the second spring 26 is compressed, and the opening above the, effectively avoiding the wheat and the larger impurities from entering the branch pipe 23 and influencing the impurity removing effect of the wheat separation.

As an embodiment of the present invention, a collecting bag 36 is sleeved on the right end face of the air duct 31; the during operation, when impurity is separated out in the wheat, if pass tuber pipe 31 and directly outwards discharge, can seriously influence the on-the-spot environment of wheat edulcoration, if doping the dust in the wheat, also can lead to the raise dust phenomenon, influence the lung health of workman on the one hand, on the other hand later stage clearance is also comparatively troublesome, consequently through receiving collection bag 36 at tuber pipe 31 overcoat, has reduced the deterioration of wheat edulcoration on-the-spot environment, has saved the time of clearance impurity.

As an embodiment of the present invention, the surfaces of the fan blades 14 are all provided with uniformly arranged wind response holes 110; the during operation, when sunning wheat daytime, often can attract the thief to eat wheat, can put near the wheat sunning with this axial fan 3 this moment, and ventilate and charge under the good sun, because wind-force effect fan blade 14 rotates, also can make the wind on fan blade 14 surface simultaneously sound hole 110 and make a sound, can effectually carry out the expulsion to the thief.

As an embodiment of the present invention, the solar cell panel 15 is rotatably connected to the outer surface of the screen box 1; a cover 111 is covered above the sieve box 1; the during operation, when the machine work, near there is certain raise dust, the raise dust falls on solar cell panel 15, all need clean the clearance at every turn, waste time and energy, but if do not carry out effectual clearance then can influence the efficiency that charges next time, simultaneously if the dust falls into in the wind response hole 110 of fan blade 14, also can influence fan blade 14 and make a sound, consequently through being connected with solar cell panel 15 design and sieve case 1 rotation, when the wheat needs the edulcoration, can upwards rotate solar cell panel 15, cover shroud 111 again on simultaneously, can effectually protect solar cell panel 15 and fan blade 14, simultaneously when the machine does not use, also can effectual protection fan blade 14 and solar cell panel 15, prevent to receive the damage of colliding with, influence the use.

As an embodiment of the present invention, the inner surface of the air pipe 31 is fixedly connected with the pneumatic membrane 35, and the pneumatic membrane 35 is in a loose state; the during operation, when impurity in the wheat passes tuber pipe 31, there is some impurity to be detained in tuber pipe 31, difficult clearance, and can influence the effect of wheat edulcoration, and the difficult homogeneity that realizes the inside air flow of sieve case 1 of rotation of rotating vane 34, through the pnematic membrane 35 that sets up the lax state in tuber pipe 31, the pnematic membrane 35 of flow of air can be disturbed in tuber pipe 31, prevent that the delay of impurity from piling up, the air current also can be disturbed simultaneously, make the wind direction constantly adjust, and then realize the whole homogeneity of sieve incasement air current.

The specific working process is as follows:

when the machine works, after wheat is harvested, a lot of impurities such as straws, wheat husks, grass seeds and the like are doped in wheat grains, and in the process of airing after harvesting, a lot of dust is doped in the wheat grains, so impurity removal treatment needs to be carried out before bag sealing and storage, firstly, the aired wheat is collected into a pile, then, a power supply of an axial flow fan 3 is turned on, the motor 3 rotates to drive a rotating column 33 to rotate, further, a rotating blade 34 rotates, the rotating blade 34 can suck air in a cavity 11 of a screen box 1 towards the right continuously, as an air inlet of the screen box 1 is fixedly connected with a suction pipe 21, the suction head 2 can suck air from the outside continuously, further, the air can enter the cavity 11 from the air inlet through the suction pipe 21, as the air inlet is smaller than the air outlet, the air flow through the suction pipe 21 is faster, further, the suction force of the suction head 2 is larger, at the moment, the suction pipe 21 with the suction head 2 is, the suction head 2 faces the wheat heap, the wheat with impurities is sucked in by the suction head 2 at the moment, then the wheat passes through the suction pipe 21 and enters the cavity 11 through the air inlet, the straw, the dust and the grass seeds are blown away by left and right air in the cavity 11 and are discharged through the air pipe 31, meanwhile, heavier wheat grains can pass through the screen 12 and fall downwards, and the straws which are not blown away in time cannot pass through the screen 12 due to large volume, so that the impurity removal effect of the wheat grains is further improved; when impurities in wheat are more, because the wheat directly falls onto the screen 12, part of the impurities easily pass through the screen 12 together with the wheat and fall onto the falling plate 16 of the screen box 1, and the wheat impurity separation effect is influenced, the vibrating screen plate 18 is arranged below the screen 12, when the wheat filtered on the screen 12 falls onto the vibrating screen plate 18, due to the vibration generated by the rotation of the axial flow fan 3, the dropped wheat is matched to generate gravity impact on the vibrating screen plate 18, so that the first spring 19 is deformed, and the vibrating screen plate 18 vibrates; due to the action of the arc-shaped baffle 22, part of the gas introduced into the screen box 1 from the air inlet can flow rapidly downwards, so that the filtering effect of the left side position of the vibrating screen plate 18 is influenced, meanwhile, as the air inlet is positioned above the screen 12, when more wheat is accumulated on the screen 12, the conduction of the air flow above and below the screen 12 is influenced, the wind speed below the screen 12 is greatly influenced, which in turn affects the filtering effect of the vibrating screen deck 18, by providing the pivotal plate 24 and the second spring 26, it can make the wheat be effectively introduced, at the same time, some gas can be passed into branch pipe 23 through small hole 25 and opening above turning plate 24, so as to realize the air supplement to the position below the screen 12, and simultaneously, because the wheat is quickly sucked into the suction pipe 21, the wheat can impact the rotating plate 24, further, the second spring 26 is compressed, the opening above the rotating plate 24 is reduced, and wheat and larger impurities are effectively prevented from entering the branch pipe 23; when impurities are separated from wheat, if the impurities pass through the air pipe 31 and are directly discharged outwards, the environment of a wheat impurity removal site is seriously influenced, and if the wheat is doped with dust, the dust raising phenomenon can also be caused, so that the deterioration of the environment of the wheat impurity removal site is reduced by receiving the collecting bag 36 outside the air pipe 31; when the wheat is aired in the daytime, the wheat is often attracted to be eaten by a bird, the axial flow fan 3 can be placed near the airing of the wheat and charged in the well-ventilated sun, and the wind-powered fan blades 14 rotate, so that the wind-powered holes 110 on the surfaces of the fan blades 14 can sound, and the bird can be effectively repelled; when the machine works, a certain amount of raised dust is generated nearby and falls onto the solar cell panel 15, the raised dust needs to be cleaned every time, time and labor are wasted, but if the raised dust is not cleaned effectively, the charging efficiency of the next time can be influenced, and meanwhile, if the dust falls into the wind hole 110 of the fan blade 14, the fan blade 14 can be influenced to make a sound, so that the solar cell panel 15 is rotationally connected with the sieve box 1, when the wheat needs to be cleaned, the solar cell panel 15 can be rotated upwards, and meanwhile, the cover 111 is sleeved, so that the solar cell panel 15 and the fan blade 14 can be effectively protected; when impurity in the wheat passes tuber pipe 31, there is some impurity to be detained in tuber pipe 31, difficult clearance, and can influence the effect of wheat edulcoration, and the difficult homogeneity that realizes the inside air flow of sieve case 1 of rotation bucket 34, through the pnematic membrane 35 that sets up lax state in tuber pipe 31, the pnematic membrane 35 of flow of air can be disturbed in tuber pipe 31, prevent that the delay of impurity from piling up, also can disturb the air current simultaneously, make the wind direction constantly adjust.

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.

Claims

1. An axial flow fan comprises a sieve box (1), a suction head (2) and a motor (3); the sieve box (1) is designed into a cuboid structure; a cavity (11) is formed in the sieve box (1); a horizontally placed screen (12) is arranged in the cavity (11), and the side surfaces of the screen (12) are fixedly connected with the inner surface of the screen box (1); the right side surface of the sieve box (1) is fixedly connected with an air pipe (31); an air outlet is formed in the position, where the air pipe (31) is located, of the right side surface of the screen box (1); the inner surface of the air pipe (31) is fixedly connected with a vertically placed support plate (32), and the support plates (32) are uniformly arranged by taking the axis of the air pipe (31) as the center; the right side surfaces of the supporting plates (32) are fixedly connected with the same motor (3) together; the left end face of the output shaft of the motor (3) is fixedly connected with a rotating column (33), and the rotating column (33) is positioned at the left position of the supporting plate (32); the cambered surface of the rotating column (33) is fixedly connected with rotating blades (34) which are uniformly arranged; an air inlet is formed in the left end face of the screen box (1) above the screen (12); a suction pipe (21) is fixedly connected to the left end face of the screen box (1) at the position of the air inlet; the suction head (2) is fixedly connected with the left end face of the suction pipe (21); an arc-shaped baffle (22) is fixedly connected to the inner surface of the screen box (1) at the right side of the air inlet; the upper surface of the screen box (1) is rotatably connected with uniformly arranged air columns (13); the top of the wind column (13) is fixedly connected with uniformly arranged fan blades (14); the upper surface of the screen box (1) is provided with solar panels (15) which are obliquely arranged at the front edge and the rear edge of the upper surface of the screen box (1); a falling plate (16) which is obliquely arranged from front to back is fixedly connected to the bottom of the screen box (1) in the cavity (11), and the front bottom of the falling plate (16) is higher than the back bottom; an outlet is formed in the front end face of the screen box (1) at the position of the falling plate (16); the front end surface of the screen box (1) is fixedly connected with a guide plate at an outlet position; a storage battery (17) is fixedly connected to the left side surface of the screen box (1) at the position below the suction pipe (21); the lower surface of the screen box (1) is fixedly connected with uniformly arranged support columns;

the inner surface of the screen box (1) is fixedly connected with a circle of uniformly arranged supporting blocks at the position below the screen (12); a vibrating screen plate (18) is arranged on the inner surface of the screen box (1) below the supporting block, and first springs (19) which are uniformly arranged are fixedly connected to the upper surface of the vibrating screen plate (18); the number of the first springs (19) is equal to that of the supporting blocks, and the first springs (19) are fixedly connected with the lower surfaces of the corresponding supporting blocks;

an air supply hole is formed in the left side surface of the screen box (1) at a position between the screen (12) and the vibrating screen plate (18); a branch hole is formed in the position, close to the left end face of the screen box (1), of the lower surface of the suction pipe (21); the outer surface of the suction pipe (21) is fixedly connected with a branch pipe (23) at a branch hole position, and the right side surface of the branch pipe (23) is fixedly connected with the left side surface of the screen box (1) at an air supplement hole position; the inner surface of the suction pipe (21) is rotatably connected with a rotating plate (24) at the position of the support hole; small holes (25) are uniformly distributed on the surface of the rotating plate (24); the lower surface of the rotating plate (24) is fixedly connected with a second spring (26);

a collecting bag (36) is sleeved on the right end face of the air pipe (31);

the surfaces of the fan blades (14) are all provided with uniformly arranged wind response holes (110);

the solar cell panel (15) is rotatably connected with the outer surface of the screen box (1); a cover (111) is covered above the sieve box (1);

the inner surface of the air pipe (31) is fixedly connected with a pneumatic membrane (35), and the pneumatic membrane (35) is in a loose state.