CN201118419Y - Electromagnetic vibration impact machine for line vibration electromotor - Google Patents

Abstract

An electromagnetic vibration rammer, used as a linear vibrating motor, comprises two electromagnets which share an armature iron(10) and part of an iron core(5). The two electromagnets are arranged in symmetry with the thickness centerline of the iron core(5) as the axis, and the ordinate axle of the two electromagnets overlap with each other. Excited by the impulse current with certain frequency conducted to a solenoid coil(4) and a solenoid coil(6), the armature iron(10) moves upwards and strikes an iron core(1) or moves downwards and strikes an iron core(9) so as to enable the whole device to generate vibration with certain frequency, and such movement is repeated. Compared with conventional electromagnetic vibrators, the electromagnetic vibration rammer is of higher work frequency, bigger impact energy, wider application range and longer service life, and is simple in structure, easier to make and can save more energy.

Description

Electromagnetically vibrating impactor as linear type vibration motor

Technical field:

The utility model belongs to the vibrating impactor technical field of structures.

Background technology:

Utilizing electric and magnetic oscillation to impact the device that produces directed vibrational excitation power generally is to form system with the electromagnet and the back-moving spring of a standard, encourages through halfwave rectifier with alternating current.This system is by electromagnetic force drive magnet armature or iron core and coil movement and makes their that the kinetic energy that impact is converted into electromagnetic energy electromagnet take place, block exciting current, electromagnet armature or iron core and coil after the collision and reset under the effect of spring to impact next time, this is the structure of unidirectional impact.Also useful two standard electric magnet are opposed to produce the impact of subtend.

The moving component of traditional Electromagnetically vibrating impactor is generally armature, and its volume is big, quality is big, the ratio of inertias of motion big (if unshakable in one's determination and coil is taken exercises, then inertia is bigger), so the frequency of its motion can not be very high.

Traditional Electromagnetically vibrating impactor all will be with spring so that moving component resets, and the damping of spring will consume no small electromagnetic force, and this makes the efficient of system reduce, and spring is subjected to very big influence because of the alternate load of bearing high frequency makes its life-span simultaneously.

Traditional Electromagnetically vibrating impactor is all smaller owing to its working clearance of structural reason, generally in 1 millimeter, at this moment the electromagnetic force of system is all bigger.But, electromagnet institute work is the product of the distance of electromagnetic force and electromagnetic force effect, the working clearance (being the distance of electromagnetic force effect) has determined the ballistic work of this impactor to be not easy to do big.

Summary of the invention

The purpose of this utility model just is being based on the weak point that above-mentioned prior art exists and a kind of Electromagnetically vibrating impactor with pulse power excitation that designs.It remains two electromagnet is opposed but structure electromagnet is different from the electromagnet of standard, and has saved catabiotic back-moving spring, the efficient of system is improved, be suitable for using wider.

The purpose of this utility model is achieved by the following technical solution: the utility model device is made up of two electromagnet of a shared armature (10) (impact piston): (1), (2), (5), (8) and (9) are unshakable in one's determination; (3) and (7) be yoke (shell); (4) and (6) be solenoid.Only be a principle schematic as shown in Figure 1, this device can be as mounting seat in arbitrarily angled installation, iron core (2) and (8).When upper coil (4) when excitation energising, iron core (1), air-gap (working clearance), armature (10) (piston), (5), yoke (3) unshakable in one's determination, (2) unshakable in one's determination form closed magnetic loop, in air-gap, produce electromagnetic force, electromagnetic force moves upward armature (10) (piston) and impacts iron core (1), and electromagnetic energy is converted into the kinetic energy that whole device moves upward.Coil (6) energising excitation after the impact that makes progress is finished, when coil (4) cuts off the power supply, (9), air-gap (working clearance) at this moment unshakable in one's determination, armature (10) (piston), (5), yoke (7) (shell) unshakable in one's determination, (8) unshakable in one's determination form closed magnetic loop, in air-gap (working clearance), produce electromagnetic force, electromagnetic force moves downward armature (10) (piston) and impacts iron core (9), and electromagnetic energy is converted into the kinetic energy that whole device moves downward.So move in circles, under the pulse current excitation that feeds solenoid 4 and 6 by certain frequency respectively, make whole device produce the vibration of certain frequency.

Volume, the quality of piston of the present utility model (armature 10) is that operating frequency, the impact energy according to impactor designs, and quality is little during dither, movement inertia is little, be quick on the draw; Quality is big during low frequency, and movement inertia is big, impact energy is high.

Working clearance of the present utility model (air-gap) wants big more than traditional, can be very big to obtain bigger impact energy when low frequency uses; And can be very little of to obtain good frequency response when high frequency uses.

The utility model device and traditional electrical magnetic vibrator relatively, operating frequency can be very high, impact energy can be very big, so wider, the energy savings more that are suitable for using: simple in structure, easier manufacturing, the life-span is longer.

Description of drawings:

Fig. 1 is the utility model device vertical section structure schematic diagram.

Embodiment:

The utility model device is made up of two electromagnet of a shared armature (10) (impact piston) and a part (5) unshakable in one's determination.The longitudinal axis of two electromagnet overlaps, be the axis symmetric arrangement with the mid-depth line of (5) unshakable in one's determination.(1), (2), (5), (8) and (9) are unshakable in one's determination; (3) and (7) be yoke (shell); (4) and (6) be solenoid.When upper coil (4) when excitation energising, iron core (1), air-gap (working clearance), armature (10) (piston), (5), yoke (3) unshakable in one's determination, (2) unshakable in one's determination form closed magnetic loop, in air-gap, produce electromagnetic force, electromagnetic force moves upward armature (10) (piston) and impacts iron core (1), and electromagnetic energy is converted into the kinetic energy that whole device moves upward.After the impact that makes progress is finished, coil (4) outage coil (6) energising simultaneously excitation, (9), air-gap (working clearance) at this moment unshakable in one's determination, armature (10) (piston), (5), yoke (7) (shell) unshakable in one's determination, (8) unshakable in one's determination form closed magnetic loop, in air-gap (working clearance), produce electromagnetic force, electromagnetic force moves downward armature (10) (piston) and impacts iron core (9), and electromagnetic energy is converted into the kinetic energy that whole device moves downward.So move in circles, under the pulse current excitation that feeds solenoid (4) and (6) by certain frequency respectively, make whole device produce the vibration of certain frequency.

Claims (1)

1. A kind of Electromagnetically vibrating impactor as linear type vibration motor is made up of two electromagnet of a shared armature (10) and a part (5) unshakable in one's determination; It is characterized in that: the longitudinal axis of two electromagnet overlaps, be the axis symmetric arrangement with the mid-depth line of (5) unshakable in one's determination; Solenoid be divided into (4), (6) two groups; (1), air-gap unshakable in one's determination, armature (10), (5), yoke (3) unshakable in one's determination, (2) unshakable in one's determination form a closed magnetic loop; (9), air-gap unshakable in one's determination, armature (10), (5), yoke (7) unshakable in one's determination, (8) unshakable in one's determination form another closed magnetic loop.

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