阅读说明：本技术 一种电磁振动体 (Electromagnetic vibrating body ) 是由 骆经霞 于 2019-04-08 设计创作，主要内容包括：本发明公开了一种电磁振动体,该电磁振动体包括：线圈骨架,在其外径上卷绕有多组线圈；振动体骨架,其内通过铜螺杆装有多个永磁体和磁轭,永磁体和磁轭安装高度与多组线圈的中心高度相同,相邻永磁体邻近的磁极极性相同,相邻线圈绕组的卷绕方向相反。该电磁振动体可被直流电流驱动控制,直流电流的波形不同时,可产生不同的振动效果,通过对频率和波形的选择,实现对振动效果的精细控制。(The invention discloses an electromagnetic vibrator, comprising: a bobbin having a plurality of coils wound around the outer diameter thereof; the vibrating body framework is internally provided with a plurality of permanent magnets and magnetic yokes through copper screws, the installation heights of the permanent magnets and the magnetic yokes are the same as the central heights of the coils, the adjacent magnetic poles of the adjacent permanent magnets have the same polarity, and the winding directions of the adjacent coil windings are opposite. The electromagnetic vibrating body can be driven and controlled by direct current, different vibration effects can be generated when the waveforms of the direct current are different, and fine control of the vibration effects is achieved through selection of frequency and the waveforms.)

1. An electromagnetic vibration body; the method is characterized in that: the electromagnetic vibrator comprises a coil framework, a plurality of groups of grooves are formed in the outer diameter of a cylinder of the electromagnetic vibrator, enameled wire windings are wound in the grooves, and insulating sheet layers are wound on the enameled wire windings; the vibrating body framework is internally inserted with a copper screw, is provided with a plurality of permanent magnets and magnetic yokes at intervals and is locked on the vibrating body framework by copper nuts; and the elastic connecting piece is elastically connected with the vibrating body framework and the coil framework, and the side surface of the elastic connecting piece is locked and fixed by a set screw.

2. An electromagnetic vibrator according to claim 1, wherein: the coil framework is characterized in that one end of the coil framework is in an open cylinder shape, the other end of the coil framework is in a flat plate shape, a plurality of sections of winding grooves are formed in the outer diameter of the cylinder, and the coil framework is made of a material which is good in magnetic insulation and heat dissipation, preferably an aluminum alloy material.

3. An electromagnetic vibrator according to claim 2, wherein: and a plurality of sections of enameled wire windings are wound on the coil framework.

4. An electromagnetic vibrator according to claim 1, wherein: the coil framework flat plate end is provided with a through hole and a position avoiding hole characteristic and is used for leading out the wire ends at two ends of the enameled wire to avoid positions.

5. An electromagnetic vibrator according to claim 4, wherein: the vibrating body framework is characterized in that one end of the vibrating body framework is cylindrical, the other end of the vibrating body framework is a flat plate, and a through hole and a groove are formed in the center of the flat plate end.

6. An electromagnetic vibrator according to claim 1, wherein: a copper screw is connected into the through hole at the flat plate end of the vibrating body framework in series, a plurality of permanent magnets and a magnetic yoke are sequentially arranged on the copper screw, the magnetic yoke separates two adjacent permanent magnets, and the permanent magnets and the magnetic yoke are arranged inside the cylinder of the vibrating body framework.

7. An electromagnetic vibrator according to claim 3, wherein: the multiple sections of enameled wire windings are wound by a single enameled wire, and the winding directions of any adjacent windings are opposite to each other.

8. An electromagnetic vibrator according to claim 6, wherein: and the magnetic poles of two adjacent surfaces between any two adjacent permanent magnets have the same direction.

9. An electromagnetic vibrator according to claim 1, wherein: the permanent magnets, the magnetic yokes and the multi-section enameled wire coil windings are equal in number.

10. An electromagnetic vibrator according to claim 1, wherein: the permanent magnets and the multiple sections of enameled wire windings are arranged in the electromagnetic vibrating body in a one-to-one correspondence mode, and the center heights of the permanent magnets and the multiple sections of enameled wire windings are consistent.

11. An electromagnetic vibrator according to claim 1, wherein: the elastic connecting piece is a mechanical spiral spring which is precisely processed, and the outer diameter surfaces of the two ends of the elastic connecting piece are provided with fastening screw holes for fastening.

12. An electromagnetic vibrator according to claim 1, wherein: the inner diameter of the hollow part of the elastic connecting piece is larger than the outer diameter of the vibrating body framework cylinder, and the inner diameter of the vibrating body framework cylinder is larger than the outer diameter of the coil framework after winding, so that a gap between the vibrating body framework and the coil framework when relative movement occurs due to vibration is ensured.

13. An electromagnetic vibrator according to claim 1, wherein: and the coil framework flat plate end and the vibrating body framework flat plate end are respectively provided with a screw hole for connecting the electromagnetic vibrating body with a fixed basic component such as a rack and the like and a target vibrating component.

Technical Field

The invention relates to an electromagnetic vibrator used in the field of electronic accessories, in particular to an electromagnetic vibrator used in the fields of feeding, sorting, uniformly mixing and moving materials in automatic production.

Background

At present, in an automatic production scene, in an application scene of feeding, sorting, uniformly mixing and the like of materials based on a vibration principle, a vibration source mostly adopts a mode of driving an eccentric wheel to vibrate by a plate-type electromagnetic vibrator and a rotating motor; the vibration response speed generated by the eccentric vibration driven by the rotating motor is too slow, the noise is large, the mechanism is easy to wear, and the vibration frequency is slow; the plate type electromagnetic vibrator is mainly controlled by 220V alternating current, has large noise and low vibration amplitude, is easy to damage a plate spring and needs to be replaced frequently, and is not easy to control finely.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides an electromagnetic vibrating body for vibrating and screening materials or parts in automatic production.

The present invention adopts the following design to solve the above disadvantages.

An electromagnetic vibrator body comprising: the coil comprises a coil framework, an enameled wire winding, an insulating sheet layer, an elastic connecting piece, a vibrating body framework, a copper screw, a permanent magnet, a magnet yoke, a copper nut and a set screw.

In some exemplary embodiments of the present invention, the bobbin has an external shape of a hollow cylinder with an opening at one end, a plurality of sections of annular grooves are spaced on an external diameter of the cylinder for winding a plurality of sections of enameled wire windings, an insulating layer sheet is disposed on an external side of the enameled wire windings, the insulating layer sheet can be formed by pouring epoxy resin or can be wound by a polyimide film, and a circular step feature is disposed near the other end of the bobbin opposite to the opening.

In some exemplary embodiments of the invention, a through hole is formed at one end of the coil bobbin close to the circular step, close to the cylindrical winding groove, and leads at two ends of the enameled wire winding are led out from the small through hole.

In some exemplary embodiments of the invention, the vibrator framework is a hollow cylindrical metal framework with an opening at one end, a copper screw is installed inside a cylinder of the vibrator framework, the copper screw penetrates into the cylinder, a plurality of permanent magnets and magnetic yokes are sequentially connected in series on the copper screw, a copper nut is locked at a thread of the head of the copper screw, the permanent magnets and the magnetic yokes are fixed on the copper screw, and a circular step feature is arranged near the other end, opposite to the opening, of the cylinder of the vibrator framework.

In some exemplary embodiments of the invention, the elastic connecting member is a hollow precisely machined metal spring, two ends of the spring are respectively sleeved on the circular step feature of the coil framework and the circular step feature of the vibrator framework to achieve the function of elastically connecting the vibrator framework and the coil framework, the outer diameter surfaces of the elastic body near the two ends are respectively provided with a plurality of screw holes, and fastening screws are screwed into the screw holes to fix the coil framework and the vibrator framework.

In some exemplary embodiments of the invention, the hollow inner diameter of the elastic connecting member is larger than the outer diameter of the cylinder of the vibrator framework, the inner diameter of the cylinder of the vibrator framework is larger than the outer diameter of the coil framework after winding, so as to ensure a gap between the vibrator framework and the coil framework when the vibrator framework and the coil framework move relatively due to vibration, and the multi-section enameled wire winding is formed by winding an enameled wire along the coil framework.

In some exemplary embodiments of the present invention, the number of the outer grooves of the bobbin cylinder is the same as the number of the coil windings, the number of the permanent magnets, and the number of the yokes.

In some exemplary embodiments of the present invention, the permanent magnet is a cylindrical ring, and in the installation sequence of the plurality of permanent magnets, two end faces of any two adjacent permanent magnets, which are close to each other, have the same magnetic polarity.

In some exemplary embodiments of the present invention, two adjacent groups of the plurality of sections of enameled wire windings on the bobbin are wound in opposite directions.

In some exemplary embodiments of the present invention, the plurality of groups of enameled wire windings on the coil bobbin are installed at the same central height as the permanent magnet to obtain the optimal vibration amplitude and response speed.

The invention has the beneficial effects that: the coil vibration can be driven by adopting 24V direct current safe voltage, the coil vibration is safe and reliable, a plurality of groups of enameled wire windings correspond to a plurality of groups of permanent magnets, the vibration intensity is high, the vibration response speed is high, and the amplitude, the frequency and the vibration effect can be controlled by correspondingly input direct current at will; 2, the performance is stable, the permanent magnet is adopted in the product, the output is continuously and stably realized, the defects of mechanical abrasion, low response speed and the like of an eccentric wheel are avoided, and the vibration noise is low; 3, the device has wide application range, and can be widely applied to industries of vibration conveying and screening of materials in automatic production and application scenes of vibration, uniform mixing and the like in medical instruments due to the advantages of compact structure, small volume, safe and reliable driving current, quick response, easy fine control of input current waveform and the like; 4, multidirectional vibration can be generated, and the multidirectional vibration can be realized by using a single electromagnetic vibrator; and 5, direct current waveform driving is adopted, and different current waveforms can correspond to different amplitudes, frequency characteristics and vibration effects, so that fine control selection of different application occasions is facilitated.

The technical problem solved by the present invention is not limited to the above description, and any other technical problems not mentioned so far will be clearly recognized by those skilled in the art from the following description.

Drawings

FIG. 1 is an exploded perspective view showing the entire configuration of an electromagnetic vibrator according to an exemplary embodiment of the present invention;

FIG. 2 is a sectional view showing a mounting relationship of parts of an electromagnetic vibrator according to an exemplary embodiment of the present invention;

FIG. 3 is an example of a polarity relationship between a plurality of permanent magnets in an exemplary embodiment of the invention;

FIG. 4 is another way of illustrating a polar relationship between a plurality of permanent magnets in an exemplary embodiment of the invention;

fig. 5 is an example of a winding direction of a plurality of windings of enamel wire wound on a bobbin, according to an exemplary embodiment of the present invention;

fig. 6 is another example of a winding direction of a plurality of windings of enamel wire wound on a bobbin in accordance with an exemplary embodiment of the present invention.

The reference numbers are as follows: 1-coil framework, 2-enameled wire winding, 3-insulating sheet layer, 4-elastic connecting piece, 5-vibrating body framework, 6-copper screw, 7-permanent magnet, 8-magnet yoke, 9-copper nut and 10-set screw.

Detailed Description

Advantages and features of the present invention may be understood more readily by reference to the following detailed description of exemplary embodiments and the accompanying drawings, in which a detailed description of known functions, configurations or constructions are omitted for brevity and clarity to avoid obscuring the description of the present invention with unnecessary detail, and therefore the present invention is not limited to the exemplary embodiments to be described below, but may be implemented in other forms as well, and the detailed description of the present invention is further described in detail below with reference to the accompanying drawings.

As shown in fig. 1, the present invention provides an electromagnetic vibrator, which can be used in a plurality of industries and fields such as material vibration sorting, vibration screening, vibration blending, etc.

As shown in fig. 1, the present invention provides an electromagnetic vibrator, which can be used in a plurality of industries and fields such as material vibration sorting, vibration screening, vibration blending, etc.

The coil frame 1 is a hollow cylinder with an opening at one end, the other end is of a flat plate type, the coil frame 1 is made of a magnetic insulating material, a plurality of grooves are formed in the outer diameter of the cylinder of the coil frame 1, the grooves are used for winding enameled wire windings 2, ribs among the grooves can improve the heat dissipation capacity of the coil after the coil is electrified, in the illustrated example, the coil frame 1 is made of aluminum alloy, the winding grooves on the coil frame are 3 groups, and the enameled wire windings are 3 sections of multiple layers.

As shown in fig. 5 and fig. 6, the enameled wire winding 2 is wound in a plurality of grooves of the cylindrical outer diameter of the coil bobbin 1, and is formed by winding an enameled wire, the winding directions of two sections of coils in two adjacent grooves are opposite, in the illustrated exemplary embodiment, when looking down from the opening direction of the cylindrical end of the coil bobbin 2, the winding directions of three groups of coils of the enameled wire winding 2 from the cylindrical end to the flat end are in sequence: counter-clockwise-counter-clockwise or clockwise-counter-clockwise.

The enameled wire winding 2 is wound on the coil skeleton 1, the insulation sheet layer 3 is wound on the coil skeleton 1 after the enameled wire winding 2 is wound in a cylindrical shape, the insulation sheet layer 3 can be formed by encapsulating insulating materials such as epoxy resin and the like, and can also be formed by winding a polyimide film to provide insulation protection.

The coil frame 1 is provided with a small hole near the bottom of the flat plate end and used for leading out two ends of the wound enameled wire winding 2 from the flat plate end, the flat plate end face of the coil frame 1 is provided with a groove used for leading out a wire of the enameled wire to avoid the position, and the flat plate end is provided with a through hole for fixing and used for fixing the whole electromagnetic vibration body on other components such as a frame bottom plate through screws and the like.

The vibrating body framework 5 is in a hollow cylindrical shape with one open end to reduce leakage of a magnetic field generated by the permanent magnet 7 and the enameled wire coil winding 2, the other end of the vibrating body framework is in a flat plate shape, a through hole is formed in the flat plate end and is communicated with the cylindrical end, the flat plate end of the vibrating body framework 5 is provided with a groove characteristic, the shape of the groove characteristic is matched with the head characteristic of the copper screw 6, and the groove characteristic is used for positioning and fixing the copper screw 6 after penetrating into the cylinder of the vibrating body framework 5.

The copper screw 6 is sequentially connected with a plurality of permanent magnets 7 and a magnetic yoke 8 in series, and the magnetic yoke 8 separates two adjacent permanent magnets 7 to avoid interference between magnetic fields of the permanent magnets.

As shown in fig. 3 and 4, the polarities of the two adjacent magnetic poles of any two adjacent permanent magnets 7 on the copper screw 6 are the same.

The copper nut 9 is arranged at the thread end part of the copper screw 6 and is used for locking the permanent magnets 7 and the magnetic yoke 8 on the vibrating body framework 5.

As shown in fig. 2, the central mounting height of the permanent magnet 7 and each group of coil windings is kept consistent, so that the optimal electromagnetic induction vibration amplitude and response speed are obtained after the coil is electrified.

As shown in fig. 2, the elastic connecting member 4 connects the coil frame 1 and the vibrator frame 5, and two ends of the elastic connecting member are respectively sleeved on the coil frame 1 and the vibrator frame 5, the two ends of the elastic connecting member 4 are respectively provided with a plurality of screw holes in the radial direction, and the set screws 10 are screwed into the screw holes to fix the coil frame 1 and the vibrator frame 5.

As shown in fig. 2, the elastic connecting member 4 is a cylindrical spring with a finish, which can be expanded or contracted in the axial direction or twisted in the circumferential direction, and can provide elastic connection when the vibration body frame 5 vibrates in each direction relative to the coil frame 1.

As shown in fig. 2, the plate feature of the vibrator framework 5 is provided with a plurality of through holes for connecting the vibrator framework 5 with an attachment platform to be vibrated, so as to realize the vibration of the target object.

From the foregoing description, it can be seen that the basic principle of the present invention is to provide an electromagnetic vibration vibrator, which can maximize the electromagnetic vibration force and increase the vibration response speed by configuring multiple sets of permanent magnets and coils in a limited space under the driving of a 24V dc current, and can achieve different vibration effects through fine control under the driving of current waveforms with different frequencies.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention, and therefore, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.