阅读说明：本技术 一种低噪音的无尘车间用风机 (Low-noise fan for dust-free workshop ) 是由 雷大兵 于 2020-10-27 设计创作，主要内容包括：本发明涉及风机技术领域,且公开了一种低噪音的无尘车间用风机,包括壳体,所述壳体的正面活动连接有隔板,所述隔板的左侧固定连接有磁块,所述壳体的正面且靠近隔板的内侧固定连接有电磁铁,所述壳体的内壁固定连接有磁板一,所述壳体的内壁且靠近磁板一的右侧固定连接有磁板二。该低噪音的无尘车间用风机,通过电磁环通电,基于磁悬浮原理,避免风机工作产生较大的噪音,避免影响到工作人员的状态,降低了事故的发生率,降低在使用时的磨损程度,提高风机的使用寿命,同时周围环境质量是无法保证的,防止空气中的灰尘会附着到不工作风机的扇叶上,防止产生灰尘堆积,避免风机污染,再次使用时,避免出现车间污染。(The invention relates to the technical field of fans and discloses a low-noise dust-free fan for a workshop. This low-noise fan for dust-free workshop, switch on through the electromagnetic ring, based on the magnetic suspension principle, avoid fan work to produce great noise, avoid influencing staff's state, the incidence of accident has been reduced, reduce the degree of wear when using, improve the life of fan, the surrounding environment quality is unable assurance simultaneously, prevent that the dust in the air can be attached to the flabellum of out-of-operation fan on, it piles up to prevent to produce the dust, avoid the fan pollution, when using once more, avoid appearing the workshop pollution.)

1. The utility model provides a dustless workshop fan of low noise, includes casing (1), its characterized in that: the front of the shell (1) is movably connected with a partition plate (19), the left side of the partition plate (19) is fixedly connected with a magnetic block (2), the front of the shell (1) and the inner side close to the partition plate (19) are fixedly connected with an electromagnet (3), the inner wall of the shell (1) is fixedly connected with a first magnetic plate (4), the inner wall of the shell (1) and the right side close to the first magnetic plate (4) are fixedly connected with a second magnetic plate (5), the inner wall of the shell (1) is fixedly connected with a fixed shaft (6), and the inner wall of the fixed shaft (6) is fixedly connected with an electromagnet ring (7);

the outer side of the inner wall of the shell (1) close to the fixed shaft (6) is movably connected with a magnetic ring body (8), the outer side of the magnetic ring body (8) is fixedly connected with a lead coil (9), the outer side of the lead coil (9) is fixedly connected with a rotating shaft (10), and the outer side of the rotating shaft (10) is fixedly connected with fan blades (11);

the inner wall fixedly connected with of flabellum (11) seals jar (12), the inner wall fixedly connected with piston block (13) of sealed jar (12), the inner wall fixedly connected with magnetite one (14) of piston block (13), the inner wall fixedly connected with magnetite two (15) of piston block (13), magnetic current becomes sap cavity (16) has been seted up to the inner wall of sealed jar (12), the inner wall swing joint of sealed jar (12) has electrical contact (17), the inner wall of flabellum (11) just is close to inboard fixedly connected with tie point (18) of electrical contact (17).

2. The low-noise dust-free workshop blower fan according to claim 1, wherein: the structure of baffle (19) is the cuboid structure, baffle (19) symmetric distribution is in the both sides of casing (1), casing (1) and magnetic path (2) elastic connection.

3. The low-noise dust-free workshop blower fan according to claim 1, wherein: the magnetism of the opposite surfaces of the magnetic block (2) and the electromagnet (3) is the same, and the magnetic block (2) is of a cuboid structure.

4. The low-noise dust-free workshop blower fan according to claim 1, wherein: the magnetism of the opposite surfaces of the first magnetic plate (4) and the second magnetic plate (5) is opposite, and the shapes and the sizes of the first magnetic plate (4) and the second magnetic plate (5) are the same.

5. The low-noise dust-free workshop blower fan according to claim 1, wherein: the electromagnetic ring (7) and the magnetic ring body (8) are both of a cylindrical structure, and the magnetism of the opposite surfaces of the electromagnetic ring (7) and the magnetic ring body (8) is the same.

6. The low-noise dust-free workshop blower fan according to claim 1, wherein: the magnetism of the opposite surfaces of the first magnet (14) and the second magnet (15) is opposite, and the shape and the size of the first magnet (14) and the second magnet (15) are the same.

7. The low-noise dust-free workshop blower fan according to claim 1, wherein: magnetorheological fluid is filled in the magnetorheological fluid cavity (16), the magnetorheological fluid mainly comprises carbonyl iron powder and silicone oil, and the piston block (13) is electrically connected with the lead coil (9).

8. The low-noise dust-free workshop blower fan according to claim 1, wherein: the structure of the electric contact (17) and the connection point (18) is a hemisphere structure, the electric contact (17) is electrically connected with the connection point (18), and the connection point (18) is electrically connected with the electromagnet (3).

Technical Field

The invention relates to the technical field of fans, in particular to a low-noise dust-free fan for a workshop.

Background

The fan is a machine which relies on input mechanical energy to improve gas pressure and discharge gas, and is a driven fluid machine, the fan is commonly used for conveying and discharging gas in a dust-free workshop, the noise generated by the existing fan for the dust-free workshop during working is large, influences are caused to workers, and the existing fan for the dust-free workshop can be influenced by the surrounding environment before and after being used, so that dust accumulation is generated.

Because current dustless fan is connected through the bearing in the course of the work, so can produce great noise, can influence staff's state, the incidence of accident has been improved to degree of wear is great when using, leads to the life of fan to reduce, and the surrounding environment quality is unable assurance simultaneously, and dust in the air can be attached to the flabellum of the fan of out of work on, produces the dust and piles up, causes the fan pollution, when using again, can cause the workshop to pollute.

Therefore, we propose a low-noise dust-free workshop fan to solve the above problems.

Disclosure of Invention

Technical scheme (I)

In order to avoid the fan from generating larger noise during working, avoid influencing the state of workers, reduce the incidence rate of accidents, reduce the abrasion degree during use, prolong the service life of the fan, prevent dust in the air from attaching to the fan blade of the fan which does not work, prevent dust accumulation and avoid fan pollution, and avoid workshop pollution during reuse, the invention provides the following technical scheme: a low-noise dust-free workshop fan comprises a shell, wherein a partition plate is movably connected to the front of the shell, a magnetic block is fixedly connected to the left side of the partition plate, an electromagnet is fixedly connected to the front of the shell and the inner side close to the partition plate, a first magnetic plate is fixedly connected to the inner wall of the shell, a second magnetic plate is fixedly connected to the inner wall of the shell and the right side close to the first magnetic plate, a fixed shaft is fixedly connected to the inner wall of the shell, and an electromagnetic ring is fixedly connected to the inner wall of the fixed shaft;

the outer side of the inner wall of the shell, which is close to the fixed shaft, is movably connected with a magnetic ring body, the outer side of the magnetic ring body is fixedly connected with a lead coil, the outer side of the lead coil is fixedly connected with a rotating shaft, and the outer side of the rotating shaft is fixedly connected with fan blades;

the inner wall of the fan blade is fixedly connected with a sealing cylinder, the inner wall of the sealing cylinder is fixedly connected with a piston block, the inner wall of the piston block is fixedly connected with a first magnet, the inner wall of the piston block is fixedly connected with a second magnet, the inner wall of the sealing cylinder is provided with a magnetorheological fluid cavity, the inner wall of the sealing cylinder is movably connected with an electric contact, and the inner wall of the fan blade is fixedly connected with a connection point close to the inner side of the electric contact.

Preferably, the structure of baffle is the cuboid structure, the baffle symmetric distribution is in the both sides of casing, casing and magnetic path elastic connection, baffle have played the effect that prevents the dust and get into.

Preferably, the magnetic block and the electromagnet have the same magnetism on opposite surfaces, the magnetic block is in a cuboid structure, and the magnetic block and the electromagnet have the mutual repulsion effect.

Preferably, the magnetism of the opposite surfaces of the first magnetic plate and the second magnetic plate is opposite, the shapes and the sizes of the first magnetic plate and the second magnetic plate are the same, and the first magnetic plate and the second magnetic plate play a role in generating a magnetic field.

Preferably, the electromagnetic ring and the magnetic ring body are both cylindrical structures, the opposite surfaces of the electromagnetic ring and the magnetic ring body have the same magnetism, and the electromagnetic ring and the magnetic ring body have mutual repulsion effects.

Preferably, the magnetism of the opposite surfaces of the first magnet and the second magnet is opposite, the shapes and the sizes of the first magnet and the second magnet are the same, and the first magnet and the second magnet have the function of mutual attraction.

Preferably, magnetorheological fluid is filled inside the magnetorheological fluid cavity, the magnetorheological fluid mainly comprises carbonyl iron powder and silicone oil, the piston block is electrically connected with the lead coil, and the magnetorheological fluid has a reversible change effect.

Preferably, the electric contact and the connection point are both hemispheroid structures, the electric contact is electrically connected with the connection point, the connection point is electrically connected with the electromagnetic iron, and the electric contact and the connection point play a role in connecting a circuit.

(II) advantageous effects

Compared with the prior art, the invention provides a low-noise dust-free workshop fan, which has the following beneficial effects:

1. this low-noise fan for dust-free workshop, switch on through the electromagnetic ring, based on the magnetic suspension principle, avoid fan work to produce great noise, avoid influencing staff's state, the incidence of accident has been reduced, reduce the degree of wear when using, improve the life of fan, the surrounding environment quality is unable assurance simultaneously, prevent that the dust in the air can be attached to the flabellum of out-of-operation fan on, it piles up to prevent to produce the dust, avoid the fan pollution, when using once more, avoid appearing the workshop pollution.

2. This low-noise fan for dust-free workshop, through the separation of electric contact and tie point, based on the characteristic of magnetorheological suspensions, can become the colloid that the viscosity is high by the fluid under the effect of magnetic field, and the form of magnetorheological suspensions can present the cone, magnetorheological suspensions can resume the state of liquid fluid when magnetic field disappears, reversible at this in-process, use magnetorheological suspensions to avoid the transmission of mechanical component, mechanical life has been improved, simultaneously when the fan stall, the baffle can fall down automatically, automation level has been improved, manpower resources are saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged partial view of portion A of FIG. 1;

FIG. 3 is a schematic view of the housing structure of the present invention;

FIG. 4 is an enlarged partial view of the portion B in FIG. 3 according to the present invention.

In the figure: 1. a housing; 2. a magnetic block; 3. an electromagnet; 4. a first magnetic plate; 5. a second magnetic plate; 6. a fixed shaft; 7. an electromagnetic ring; 8. a magnetic ring body; 9. a conductive coil; 10. a rotating shaft; 11. a fan blade; 12. sealing the cylinder; 13. a piston block; 14. a first magnet; 15. a second magnet; 16. a magnetorheological fluid chamber; 17. an electrical contact; 18. A connection point; 19. a separator.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a low-noise dust-free workshop fan comprises a housing 1, a partition plate 19 is movably connected to the front of the housing 1, the partition plate 19 is of a cuboid structure, the partition plates 19 are symmetrically distributed on two sides of the housing 1, the housing 1 is elastically connected with magnetic blocks 2, the magnetic blocks 2 are fixedly connected to the left side of the partition plate 19, an electromagnet 3 is fixedly connected to the front of the housing 1 and the inner side close to the partition plate 19, the magnetic faces of the magnetic blocks 2 and the electromagnet 3 have the same magnetism, the magnetic blocks 2 are of a cuboid structure, a magnetic plate I4 is fixedly connected to the inner wall of the housing 1, the magnetic faces of the magnetic plate I4 and the magnetic plate II 5 have opposite magnetism, and the magnetic plate I4 and the magnetic plate II 5, the sizes of the magnetic plates are the same, a second magnetic plate 5 is fixedly connected to the right side, close to the first magnetic plate 4, of the inner wall of the shell 1, a fixed shaft 6 is fixedly connected to the inner wall of the shell 1, and an electromagnetic ring 7 is fixedly connected to the inner wall of the fixed shaft 6;

the magnetic ring body 8 is movably connected to the outer side of the inner wall of the shell 1, which is close to the fixed shaft 6, the electromagnetic ring 7 and the magnetic ring body 8 are both of cylindrical structures, the magnetism of the opposite surfaces of the electromagnetic ring 7 and the magnetic ring body 8 is the same, the outer side of the magnetic ring body 8 is fixedly connected with a lead coil 9, the outer side of the lead coil 9 is fixedly connected with a rotating shaft 10, and the outer side of the rotating shaft 10 is fixedly connected with a fan blade 11;

a sealed cylinder 12 is fixedly connected with the inner wall of the fan blade 11, a piston block 13 is fixedly connected with the inner wall of the sealed cylinder 12, a first magnet 14 is fixedly connected with the inner wall of the piston block 13, the magnetism of the opposite surface of the first magnet 14 and the second magnet 15 is opposite, the shapes of the first magnet 14 and the second magnet 15 are the same, the size is the same, the inner wall of the piston block 13 is fixedly connected with a magnet II 15, the inner wall of the sealed cylinder 12 is provided with a magnetorheological fluid cavity 16, magnetorheological fluid is filled inside the magnetorheological fluid cavity 16, the magnetorheological fluid mainly comprises carbonyl iron powder and silicone oil, the piston block 13 is electrically connected with the wire coil 9, the inner wall of the sealed cylinder 12 is movably connected with an electric contact 17, the electric contact 17 and the connection point 18 are both of a hemispherical structure, the electric contact 17 is electrically connected with the connection point 18, the connection point 18 is electrically connected with the electromagnet 3, and the inner wall of the fan blade 11 is fixedly connected with the connection point 18 close to the inner side of the electric contact 17.

The working principle is as follows: when the fan works, a power supply is switched on, the motor drives the rotating shaft 10 to rotate, the electromagnetic ring 7 fixedly connected with the inner wall of the fixed shaft 6 has magnetism, and the magnetism of the opposite surface of the electromagnetic ring 7 and the magnetic ring body 8 is the same, so that the electrified electromagnetic ring 7 can repel the magnetic ring body 8, the rotating shaft 10 is enabled to rotate in a suspended mode, and the fan blades 11 can also rotate along with the rotating shaft;

the rotation of the rotating shaft 10 can drive the wire coil 9 fixedly connected with the inner side to rotate, a magnetic field can be generated between the magnetic plate one 4 and the magnetic plate two 5 due to the opposite magnetism of the opposite surfaces of the magnetic plate one 4 and the magnetic plate two 5, at the moment, the wire coil 9 cuts magnetic induction lines to move in the rotation process and generate induced current, current can flow through the piston block 13 on the inner wall of the sealed cylinder 12 due to the electric connection of the wire coil 9 and the piston block 13, and a strong magnetic field can be generated under the action of the current due to the opposite magnetism of the opposite surfaces of the magnet one 14 and the magnet two 15, at the moment, the magnetorheological fluid filled in the inner side of the magnetorheological fluid cavity 16 can be changed into colloidal form with high viscosity from the original liquid state under the action of the strong magnetic field;

at this time, the faster the rotating speed of the rotating shaft 10 is, the faster the speed of the fan blade 11 is, the faster the wire coil 9 cuts the magnetic induction lines generated by the first magnetic plate 4 and the second magnetic plate 5 is, the larger the induced current is, the higher the viscosity of the magnetorheological fluid in the magnetorheological fluid cavity 16 is, the magnetorheological fluid can be in a cone shape, the volume of the magnetorheological fluid can be increased, the electric contact 17 is pushed to be in contact with the connection point 18, so that the circuit is in a connected state, because the connection point 18 is electrically connected with the electromagnet 3, the magnetism of the opposite surface of the electromagnet 3 and the magnetic block 2 is the same, the electromagnet 3 after being electrified can repel the magnetic block 2, and further the partition plate 19 is opened to realize air exhaust;

above-mentioned process is as shown in the drawing one, avoids the fan work to produce great noise, avoids influencing staff's state, has reduced the incidence of accident, reduces the degree of wear when using, improves the life of fan, and the surrounding environment quality is unable assurance simultaneously, prevents that the dust in the air can be attached to the flabellum 11 of the fan of out of work, prevents to produce the dust and piles up, avoids the fan pollution, when reusing, avoids appearing the workshop pollution.

When the extension set is closed, the rotating speed of the rotating shaft 10 is gradually reduced until the extension set stops, the inductive current generated by the rotation of the conducting coil 9 is gradually reduced in the second process, the magnetic field intensity in the piston block 13 is also gradually reduced, the viscosity of the magnetorheological fluid in the magnetorheological fluid cavity 16 is also gradually reduced, the magnetorheological fluid is gradually restored to a fluid state, meanwhile, the volume of the magnetorheological fluid is reduced, the electric contact 17 is also gradually separated from the connection point 18, the electromagnet 3 loses the repulsive force to the magnetic block 2, and the magnetic block 2 is elastically connected with the shell 1, so the magnetic block 2 drives the partition plate 19 to be closed under the action of the spring;

the process is as shown in figure three, based on the characteristics of the magnetorheological fluid, the magnetorheological fluid can be changed into colloid with high viscosity under the action of a magnetic field, the form of the magnetorheological fluid can be a cone, the magnetorheological fluid can be restored to the state of liquid fluid when the magnetic field disappears, the process is reversible, the magnetorheological fluid is used for avoiding the transmission of mechanical components, the service life of machinery is prolonged, and meanwhile, when the fan stops rotating, the partition plate 19 can automatically fall down, the automation level is improved, and the manpower resource is saved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.