CN2656031Y - Electromagnetic vibrator - Google Patents

Abstract

The utility model relates to an electromagnetic type oscillator, which is formed by connecting an outer shell, a guide rod, an armature seat plate, an armature, an oscillating body, an iron core, a coil, an eliciting wire of the coil, binding posts, a power supply input wire, a lower spring, an upper spring, an adjusting nut, a combining nut, etc. When the utility model is used, the electromagnetic type oscillator, serving as an oscillating source, is placed or installed on an object or a device which is required to generate oscillation; the power supply input wire of the utility model is connected with the single-phase alternating current mains supply or other voltage; the utility model adopts an electromagnetic structural to generate mechanical oscillation and leaves out an electromotor and a transmission mechanism used in the existing electromotor eccentric weight type oscillator, so that the fabricating cost of the utility model can be saved by about 50 percent, and the volume and the weight of a complete machine can be reduced largely; simultaneously the utility model adopts spring for storing energy, so that electricity and energy can be saved more than 70 percent; the vibration frequency of the utility model is determined by the input type of a power supply and can be selected freely; requirements for waveforms is low and is adaptable to sine wave, square wave, trapezoidal wave, and rectangular wave; the utility model has wide adaptability to the voltage. The utility model has the advantages of simple structure, no obvious wearing part, convenience for maintenance and long service life.

Description

Electromagnetic vibrator

Technical field

The utility model relates to a kind of device that utilizes electromagnetic force to produce mechanical oscillation, specifically, relates to a kind of electromagnetic vibrator.

Background technology

The existing vibrator that is widely used on the equipment such as vibratory compaction, vibration transportation, vibratory milling, vibration screening and vibropolish as vibration source on the market, generally all be to adopt the motor eccentric-type vibrator, the shortcoming of this vibrator is: 1. adopt motor to be used as power, so that production cost very high (because of motor cost reach the complete machine cost about 80%), weight too heavy (because of motor weight reach complete machine weight about 60%).2. in vibration processes electromagnetic force being transformed energy storage mainly is by inertia force, so the exciting force that is produced under certain power is low, and will produce higher exciting force, will improve power input to a machine, so Overall Power Consumption is bigger.3. vibration frequency not high (47.5HZ) if want frequency conversion, then makes to involve great expense, and has limited the raising of exciting force and can not adapt to need of work widely and frequency is low.

Summary of the invention

For solve that existing motor eccentric-type vibrator exists because of adopt motor to be used as power production cost is higher and weight is too heavy problem and Overall Power Consumption is big and the not high problem of vibration frequency, the purpose of this utility model, be but a kind of material-saving loss of weight is provided, reduces cost, reduce power consumption, improve the electromagnetic vibrator of vibration frequency and exciting force.

Solution of the present utility model is as follows.It has the shell of a closed dust, its structural feature part is, have quantity in the enclosure and be at least the guide post that two being parallel to each other and its lower end all are connected mutually with shell, also have with this quantity and be at least the armature seat board that the top of two guide post is connected mutually, be fixed with on the lower surface of armature seat board by the punching of multi-disc armature and repeatedly put the armature that forms, be equiped with in the shell below armature by perforate and slide over vibrating body on the guide post that this quantity is at least two, be fixed with on the upper surface of vibrating body and the armature of top between have the iron core of an air gap and be wound on coil on the iron core column, the other end that the two ends of coil are connected with lead-out wires of coil and lead-out wires of coil is connected on two binding posts, also be connected with the power input line that passes the perforate on the shell and guide housing exterior on two binding posts respectively, has the lower spring that slides over respectively on the every guide post below the vibrating body, the upper end of every lower spring all puts in the ring-type blind hole of inwardly offering from the vibrating body lower surface and is located, and the bottom of every lower spring all with the internal face of outer casing bottom apical grafting mutually, has the upper spring that slides over respectively on the every guide post above the vibrating body, the bottom of every upper spring all puts in the ring-type blind hole of inwardly offering from the vibrating body upper surface and is located, and the top of every upper spring all with a bottom that is screwed in the adjusting nut on the external screw-thread of guide post apical grafting mutually, a fastening screw nut that is screwed on the external screw-thread of guide post all is equipped with in the top of the adjusting nut on every guide post.

The utility model with said structure is when installing and using, by the installing hole on the shell it is directly installed on the vibrative equipment of needs, or be installed in earlier on the middle amboceptor (as an additional bottom), placing on the object that shaken again or be installed in by middle amboceptor needs also power input line of the present utility model to be connected civil power power frequency single phase poaer supply simultaneously on the vibrative equipment.So just logical electric current of having gone up of the coil on the iron core, and on iron core column, produce magnetic field, and constitute a magnetic circuit by the armature of air gap and air gap top, because the existence of air gap, the air gap of unit volume has stored huge magnetic field energy, makes the powerful magnetic attraction of generation between iron core and the armature.Because armature has been linked to be one by the armature seat board that is connected mutually and guide post and shell, move down difficulty relatively, the pressure that so only cored (comprising coil) and the vibrating body that is connected mutually with it can overcome deadweight and overcome upper spring upwards moves towards armature along guide post, on the process of moving on vibrating body and the iron core, the energy storage of upper spring pressurized, lower spring then loosens release.After the upper spring energy storage is saturated, that is to say the suffered power of the adjusting nut that is pressed in the upper spring top to being enough to drive when moving on the whole machine body, just the energy that will exceed is converted into and promotes to move on the whole machine body.Make that in the presence of the supply voltage zero crossing coil current zero crossing is that the coil no current is when passing through, magnetic field force disappears, the gravity effect that upper spring releases energy and adds iron core and vibrating body, force iron core and vibrating body to impact downwards, lower spring energy storage this moment just heads on outer casing bottom and drives whole machine body and moves down after energy storage is saturated.When upper spring release can finish after, upper and lower spring stress inequality certainly will want balanced, so lower spring begin to loosen release can, head on the vibrating body band and iron core and up move upper spring energy storage again like this.According to reason, this moment, vibrating body and iron core should return to the previous level position, be that iron core and armature residual gap air gap are followed original position of a size, this moment, whole machine body was also just finished the process that once moves up and once move down, promptly upper and lower vibration process once.But because action of inertia, vibrating body and iron core can rise to and surpass original position, just can be stabilized on the previous level position by going up, go up swing several times.If we are by adjusting the tightness (promptly having adjusted the roof pressure power of upper spring to vibrating body) that adjusting nut is pressed on the upper spring top, make vibrating body and iron core for the first time upper punch to extreme higher position be air gap hour, in time give coil electricity (just AC power begins next half cycle) again, then just make whole machine body produce upper and lower vibration for the second time, and the electromagnetic force that forces vibrating body and iron core to rise once more will be much smaller.Whole machine body is vibrated so repeatedly, has just driven the equipment that directly or indirectly is connected with its shell and has produced required vibration, and only needed less electric energy, just can produce powerful vibration force.

The utlity model has following advantage and good effect 1. adopts electromagnetic structure to produce mechanical oscillation, and iron core is directly installed on the vibrating body, therefore it is compared with existing motor eccentric-type vibrator, motor and transmission mechanism thereof have been saved, manufacturing cost saves about 50%, has alleviated the volume and weight of complete machine simultaneously greatly.And since simple in structure, not high to the required precision of parts, so be easy to make, be convenient to maintaining.2. in vibration processes, electromagnetic force is transformed the elastic force of the main dependence spring of energy storage, next is only inertia force, and the elastic force of spring resonance here is fully utilized, so producing the equal sizes exciting force with existing motor eccentric-type vibrator compares, power demand can be saved more than 70%, and its power and energy saving effect is significant.3. its vibration frequency can be selected decision by the power supply input mode, can obtain the 100HZ vibration frequency as exchanging, and halfwave rectifier can obtain the 50HZ vibration frequency.And less demanding for waveform, sine wave, square wave, trapezoidal wave, square wave all can adapt to, and be also very wide to the accommodation of voltage swing, therefore can adopt safe voltage fully for low power vibrator.It need not to increase any components and parts, just can produce the vibration frequency of 100HZ by the 50HZ electric main, and just the operating frequency demand provides condition to further improving exciting force and adapting to widely for this.4. simple in structure, there is not tangible quick-wear part, coil only has turnover two statures, can not resemble three phase electric machine and be prone to phase shortage and burn, so the utility model long service life.

Description of drawings

Fig. 1 is the forward half sectional view of a kind of concrete structure embodiment of the utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is coupled to profile schematic diagram when becoming flat-plate vibrator on some equipment and using for the utility model connects an additional bottom with its shell again as middle amboceptor;

Fig. 4 is with the miniaturization of the utility model internal structure and changes shell shape and increase the profile schematic diagram that a hand holding handle becomes a hand-held vibrator afterwards.

The specific embodiment

Referring to Fig. 1 and Fig. 2.The utlity model has the shell of a closed dust, the shell of embodiment is connected and composed by lower shoe 1 and jacket 2 among the figure, be provided with a circle boss 101 above the lower shoe 1, jacket 2 bottoms enclose that to be enclosed within boss 101 outer and adopt a plurality of screws 3 to be fixed on the boss 101, and the peripheral part that lower shoe 1 extends outside the clamshell 2 offers a plurality of installing holes 102 that are used to install complete machine.Having four in the enclosure is parallel to each other and the guide post 4 that is connected is all welded mutually with the lower shoe 1 of shell in its lower end, also has the armature seat board 5 that is connected mutually with the top of these four guide posts 4, the mode that the armature seat board 5 of embodiment and guide post 4 are connected mutually among the figure, be to be processed with screw thread on every guide post 4 tops, every guide post 4 is passed the corresponding hole of offering on the armature seat board 5 respectively, and on the screw thread of the top of every guide post 4, all be connected with respectively and the upper surface of armature seat board 5 and lower surface two hold-down nuts 6 and 7 of crimping mutually, thereby armature seat board 5 and guide post 4 are connected tightly.Be fixed with on the lower surface of armature seat board 5 by the punching of multi-disc armature and repeatedly put the armature 8 that forms, the fixed form of armature 8 on armature seat board 5 of embodiment among the figure, be on armature seat board 5, to fix two armature brackets 10 respectively, then armature 8 be folded between two armature brackets 10 and armature 8 be fastened on two armature brackets 10 with tip nail 11 with spiral shell lamp 9.Be equiped with in the shell below armature 8 by perforate and slide over four vibrating bodies 12 on the guide post 4, be fixed with on the upper surface of vibrating body 12 and the armature 8 of top between have the iron core 13 of an air gap delta and be wound on coil 14 on the iron core column of iron core 13, the fixed form of iron core 13 on vibrating body 12 of embodiment among the figure, be on vibrating body 12, to fix two iron core supports 16 respectively, then iron core 13 be folded between the two iron core supports 16 and iron core 13 be fastened on the two iron core supports 16 with tip nail 17 with screw 15.The two ends of coil 14 are connected with lead-out wires of coil 18 and 19, lead-out wires of coil 18 and 19 other end are connected on the binding post 20 and 21 on the vibrating body 12, also be connected with the power input line 22 and 23 that passes the perforate on the jacket 2 and guide housing exterior on two binding posts 20 and 21 respectively, has the lower spring 24 that slides over respectively on the every guide post 4 below the vibrating body 12, the upper end of every lower spring 24 all puts in the ring-type blind hole of inwardly offering from vibrating body 12 lower surfaces 121 and is located, and the bottom of every lower spring 24 all with the internal face of lower shoe 1 apical grafting mutually, has the upper spring 25 that slides over respectively on the every guide post 4 above the vibrating body 12, the bottom of every upper spring 25 all puts in the ring-type blind hole of inwardly offering from vibrating body 12 upper surfaces 122 and is located, and the top of every upper spring 25 all with a bottom that is screwed in the adjusting nut 26 on the external screw-thread of guide post 4 apical grafting mutually, a fastening screw nut 27 that is screwed on the external screw-thread of guide post 4 all is equipped with in the top of the adjusting nut 26 on every guide post 4.Lower spring 24 of the present utility model and upper spring 25 can be selected helical spring, rubber spring or disk spring etc.

Referring to Fig. 3, with the lower shoe 1 of Fig. 1 shell of the present utility model by installing hole 102 usefulness screws 28 fastening being installed on the additional bottom 29, just form a flat-plate vibrator, the external vibration of useful as concrete is real close, the object surface polishing, throw hair or carve on object plane.Different is, as concrete vibrator, be that its additional bottom 29 is placed on on-line operation on the concrete surface, polishing, throw hair, carving then is to have increased medium between object and additional bottom 29, by the vibration of vibrator to medium, make medium produce powerful friction, polish, throw hair or engraving effect thereby form to object plane.Engraving is then that with the difference of polishing, throwing hair work is preceding different to the processing and the medium of object plane.

Referring to Fig. 4, with the miniaturization of the utility model internal structure and change shell shape and increase by a hand holding handle 30, can become a hand-held vibrator.

Directly the utility model is installed in the vibration source that can be constituted shake table, vibratory sieve on the thing that shakes and transport, vibrate equipment such as dehydration, vibratory milling as vibration.

Claims (5)

1, a kind of electromagnetic vibrator, have a closed dust and offer the shell of installing hole, it is characterized in that, have quantity in the enclosure and be at least the guide post that two being parallel to each other and its lower end all are connected mutually with shell, also have with this quantity and be at least the armature seat board that the top of two guide post is connected mutually, be fixed with on the lower surface of armature seat board by the punching of multi-disc armature and repeatedly put the armature that forms, be equiped with in the shell below armature by perforate and slide over vibrating body on the guide post that this quantity is at least two, be fixed with on the upper surface of vibrating body and the armature of top between have the iron core of an air gap and be wound on coil on the iron core column, the other end that the two ends of coil are connected with lead-out wires of coil and lead-out wires of coil is connected on two binding posts, also be connected with the power input line that passes the perforate on the shell and guide housing exterior on two binding posts respectively, has the lower spring that slides over respectively on the every guide post below the vibrating body, the upper end of every lower spring all puts in the ring-type blind hole of inwardly offering from the vibrating body lower surface and is located, and the bottom of every lower spring all with the internal face of outer casing bottom apical grafting mutually, has the upper spring that slides over respectively on the every guide post above the vibrating body, the bottom of every upper spring all puts in the ring-type blind hole of inwardly offering from the vibrating body upper surface and is located, and the top of every upper spring all with a bottom that is screwed in the adjusting nut on the external screw-thread of guide post apical grafting mutually, a fastening screw nut that is screwed on the external screw-thread of guide post all is equipped with in the top of the adjusting nut on every guide post.

2, electromagnetic vibrator according to claim 1, it is characterized in that, shell is connected and composed by lower shoe and jacket, be provided with a circle boss above the lower shoe, jacket bottom encloses that to be enclosed within boss outer and adopt a plurality of screws to be fixed on the boss, and the peripheral part that lower shoe extends outside the clamshell offers a plurality of installing holes that are used to install complete machine.

3, electromagnetic vibrator according to claim 1 and 2, it is characterized in that, the mode that armature seat board and guide post are connected mutually, be to be processed with screw thread on every guide post top, every guide post is passed the corresponding hole of offering on the armature seat board respectively, and on the screw thread of the top of every guide post, all be connected with respectively and the upper surface of armature seat board and lower surface two hold-down nuts of crimping mutually, thereby armature seat board and guide post are connected tightly.

4, electromagnetic vibrator according to claim 1 and 2, it is characterized in that, the fixed form of armature on the armature seat board is to fix two armature brackets respectively with screw on the armature seat board, then armature is folded between two armature brackets and with the tip nail armature is fastened on two armature brackets.

5, electromagnetic vibrator according to claim 1 and 2, it is characterized in that, the fixed form of iron core on vibrating body is to fix two iron core supports respectively with screw on vibrating body, then iron core is folded between the two iron core supports and with the tip nail iron core is fastened on the two iron core supports.

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