CN205628520U - Magnetic induced shrinkage or elongation driven vibration exciter - Google Patents

Magnetic induced shrinkage or elongation driven vibration exciter Download PDF

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Publication number
CN205628520U
CN205628520U CN201620471970.4U CN201620471970U CN205628520U CN 205628520 U CN205628520 U CN 205628520U CN 201620471970 U CN201620471970 U CN 201620471970U CN 205628520 U CN205628520 U CN 205628520U
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CN
China
Prior art keywords
push rod
lever
vibrator
magnetic field
displacement equations
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620471970.4U
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Chinese (zh)
Inventor
张立杰
王浡婳
陈银环
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Sichuan College of Architectural Technology
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Sichuan College of Architectural Technology
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Priority to CN201620471970.4U priority Critical patent/CN205628520U/en
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Publication of CN205628520U publication Critical patent/CN205628520U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a magnetic induced shrinkage or elongation driven vibration exciter, the vibration exciter includes casing, baffle, alternating magnetic field generator and sets up the magnetic induced shrinkage or elongation pole in the alternating magnetic field generator, magnetic induced shrinkage or elongation pole one end is provided with the clamp plate, the clamp plate pass through the screw thread with the casing is connected, and the other end is provided with baffle and push rod, the push rod runs through the baffle supports respectively and leans on on the terminal surface at magnetic induced shrinkage or elongation pole and telescopic ejector rod, the telescopic ejector rod other end runs through casing direct action is surperficial by the excitation object. This expert utility model crosses adoption magnetostrictive material and produce flexible conduct driving source under magnetic field, replaces current electromotor drive and magnetic force actuation, has solved and has utilized the too big experiment that can not be used for less equipment of electromotor drive exciting force, utilizes electromagnetic induction to realize that the effort of contactless excitation is little, acts on obscure problem.

Description

The vibrator that a kind of magnetostriction drives
Technical field
This utility model relates to vibration test equipment field, specifically, is the vibrator of a kind of magnetostriction driving.
Background technology
Vibrator is attached on some machinery and equipment in order to produce the device of exciting force, is the vitals producing mechanical vibration.Vibrator can make to be swashed object and obtain certain forms and the vibratory output of size, thus vibrates object and strength test, or calibrates vibration testing instrument and sensor.Vibrator is alternatively arranged as driver unit composition vibrating machine, in order to realize the work such as make firm by ramming of the conveying of material or object, screening, closely knit, molding and soil sandstone.
Existing vibrator is broadly divided into two kinds: a kind of is the rotating shaft utilizing motor-driven one to be fixed with uneven weight, produce unbalanced centrifugal force by the rotation of motor and produce vibrations, the vibrations that this vibrator produces are bigger, this vibrator is applicable to large-scale mechanical shock equipment or for large-scale vibrations experiment, cannot realize testing for the vibrations of relatively skinny device, application is limited to relatively;Another kind is the simple harmonic oscillation that a kind of mode utilizing electromagnetic induction realizes testee, this vibrator is the magnetic force utilizing electromagnetic principle by producing different directions, thus realize discontiguous exciting vibration, but this vibrator does not contacts due to realization, therefore the vibration force produced is less, acting on inconspicuous, range of application is limited to relatively, can only be to some portable testing equipments.
Utility model content
The purpose of this utility model is the vibrator providing a kind of magnetostriction to drive, solve prior art utilizes the excessive experiment that cannot be used for relatively skinny device of motor-driven exciting force, utilize electromagnetic induction to realize not contacting the active force of exciting little, act on unconspicuous problem.
This utility model is achieved through the following technical solutions:
The vibrator that a kind of magnetostriction drives, described vibrator includes housing, dividing plate, alternating magnetic field generator and the magnetostrictive bar being arranged in alternating magnetic field generator;Described magnetostrictive bar one end is provided with pressing plate, described pressing plate is connected with described housing by screw thread, the other end is provided with dividing plate and push rod, described push rod runs through described dividing plate and bears against on the end face of magnetostrictive bar and flexible push rod, and the described flexible push rod other end runs through described housing and acts directly on excited body surface.
Preferably, it is additionally provided with sleeve between outside and the inner walls of described alternating magnetic field generator.
Further preferably, one-level displacement equations lever it is additionally provided with between described magnetostrictive bar and push rod, described one-level displacement equations lever is symmetrically distributed in the both sides of push rod with the axial line of push rod for axis, and it is perpendicular to push rod, described one-level displacement equations lever one end is hinged on described sleeve, the other end is against on the end face of described push rod, described one-level displacement equations lever is additionally provided with primary lever gripper shoe near the side of magnetostrictive bar, magnetostrictive bar is close in described primary lever gripper shoe side, opposite side end face is provided with salient point, described salient point at one-level displacement equations lever near the position of sleeve one end 1/3rd.
Further preferably, two grades of displacement equations lever groups it are additionally provided with between described push rod and flexible push rod, described two grades of displacement equations lever groups are made up of four levers, and become a rhombus by the fixed pivot being connected with housing, it is symmetrically distributed in the axial both sides of described push rod, it is hinged by hinged support between homonymy lever, described hinged support can slide with the arcuate groove being positioned close on the lever of push rod side arrange, and described two grades of displacement equations lever group two ends are respectively acting on push rod and flexible push rod end face.
Further preferred, it is additionally provided with sealing ring between described push rod and dividing plate.
Further preferred, it is provided with rubber sheet gasket between described alternating magnetic field generator and primary lever gripper shoe.
Further preferred, it is provided with back-moving spring between described flexible push rod and housing.
This utility model compared with prior art, has the following advantages and beneficial effect:
(1) BENTONG utility model is crossed employing magnetostriction materials and is produced flexible as driving source under the action of a magnetic field, replace existing motor-driven and magnetically-actuated, solve and utilize the excessive experiment that cannot be used for relatively skinny device of motor-driven exciting force, utilize electromagnetic induction to realize not contacting the active force of exciting little, act on unconspicuous problem.
(2) owing to being additionally arranged displacement equations lever, the telescopic displacement of magnetostriction materials is carried out physics amplification, make vibrating effect to carry out within the specific limits effectively being adjusted, it is achieved larger range of vibration experiment.
Accompanying drawing explanation
Fig. 1 is the vibrator that a kind of magnetostriction described in embodiment 1 drives;
Fig. 2 is the vibrator that a kind of magnetostriction described in embodiment 2 drives;
Fig. 3 is the vibrator that a kind of magnetostriction described in embodiment 3 drives;
The state diagram of two grades of displacement equations lever groups when Fig. 4 is the magnetostrictive bar elongation described in embodiment 3;
The state diagram of two grades of displacement equations lever groups when Fig. 5 is the magnetostrictive bar retraction described in embodiment 3;
Fig. 6 is offsetting spring structure schematic diagram;
Wherein: 1-housing;2-back-moving spring;3-stretches push rod;Bis-grades of displacement equations lever groups of 4-;5-fulcrum;6-push rod;7-dividing plate;8-sealing ring;9-one-level displacement equations lever;10-sleeve;11-primary lever gripper shoe;12-hands over table magnetic field generator;13-pressing plate;14-regulates screw;15-rubber sheet gasket;16-magnetostrictive bar;17-hinged support;18-arcuate groove.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
Shown in Fig. 1, the vibrator that a kind of magnetostriction drives, it is characterised in that described vibrator includes housing 1, dividing plate 7, alternating magnetic field generator 12 and the magnetostrictive bar 16 being arranged in alternating magnetic field generator 12;Described magnetostrictive bar 16 one end is provided with pressing plate 13, described pressing plate 13 is connected with described housing 1 by screw thread, the other end is provided with push rod 6, described push rod 6 runs through described dividing plate 7 and bears against on the end face of magnetostrictive bar 16 and flexible push rod 3, and described flexible push rod 3 other end runs through described housing 1 and acts directly on excited body surface.
In order to realize the accurate transmission of exciting force, push rod 6 and flexible push rod 3 can be fixed and connected or Integral design.
In retraction process, realize the accurate retraction of flexible push rod 3 in order to realize magnetostrictive bar 16, between flexible push rod 3 and housing 1, be provided with back-moving spring 2.
Operation principle: alternating magnetic field generator 12 is energized, magnetostrictive bar 16 occurs flexible under the effect of the alternating magnetic field produced, push rod 6 is promoted to be subjected to displacement at axial direction, displacement is passed to act directly on the flexible push rod 3 of excited body surface by push rod 6, under the promotion of back-moving spring 2 and the counteracting force that acts on excited object, described flexible push rod 3 bounces back, it is achieved the exciting vibration to excited object.
Embodiment 2:
As described in Figure 2, on the basis of embodiment 1, between outside and housing 1 inwall of described alternating magnetic field generator 12, it is additionally provided with sleeve 10.
One-level displacement equations lever 9 it is additionally provided with between described magnetostrictive bar 16 and push rod 6, described one-level displacement equations thick stick 9 bar is symmetrically distributed in the both sides of push rod 6 with the axial line of push rod 6 for axis, and it is perpendicular to push rod 6, described one-level displacement equations lever 9 one end is hinged on described sleeve 10, the other end is against on the end face of described push rod 6, described one-level displacement equations lever 9 is additionally provided with primary lever gripper shoe 11 near the side of magnetostrictive bar 16, magnetostrictive bar 16 is close in described primary lever gripper shoe 11 side, opposite side end face is provided with salient point, described salient point at one-level displacement equations lever 9 near the position of sleeve 10 one end 1/3rd.
Operation principle: alternating magnetic field generator 12 is energized, magnetostrictive bar 16 occurs flexible under the effect of the alternating magnetic field produced, magnetostrictive bar 16 promotes primary lever gripper shoe 11, salient point effect one-level displacement equations lever 9 in primary lever gripper shoe 11, one-level displacement equations lever 9 is rotated and promotes the push rod 6 of termination to be subjected to displacement at axial direction, displacement is passed to act directly on the flexible push rod 3 of excited body surface by push rod 6, under the promotion of back-moving spring 2 and the counteracting force that acts on excited object, described flexible push rod 3 bounces back, realize the exciting vibration to excited object.
Embodiment 3:
As seen in figures 3-6, on the basis of embodiment 2, two grades of displacement equations lever groups 4 it are additionally provided with between described push rod 6 and flexible push rod 3, described two grades of displacement equations lever groups 4 are made up of four levers, and it is fixed into a Pedicellus et Pericarpium Trapae shape by the fulcrum 5 being connected with housing 1, it is symmetrically distributed in the described axial both sides of push rod 6, it is hinged by hinged support 17 between homonymy lever, described hinged support 17 can slide with the arcuate groove 18 being positioned close on the lever of push rod side arrange, described two grades of displacement equations lever group 4 two ends are respectively acting on push rod 6 and flexible push rod 3 end face.
nullOperation principle: alternating magnetic field generator 12 is energized,Magnetostrictive bar 16 occurs flexible under the effect of the alternating magnetic field produced,Magnetostrictive bar 16 promotes primary lever gripper shoe 11,Salient point effect one-level displacement equations lever 9 in primary lever gripper shoe 11,One-level displacement equations lever 9 is rotated and promotes the push rod 6 of termination to be subjected to displacement at axial direction,Displacement is passed to two grades of displacement equations lever groups 4, two cross one another levers near push rod 6 one end by push rod 6,Under the effect of impetus power,Lever does rightabout respectively and rotates with fulcrum,Lever relative angle is made to change from small to big,By the arcuate groove 18 restriction effect to hinged support 17,Realize the relative angle of two levers near flexible push rod 3 from large to small,Realize the transmission of horizontal displacement and active force,It is delivered to active force act directly on the flexible push rod 3 of excited body surface,Under the promotion of back-moving spring 2 and the counteracting force that acts on excited object,The retraction of described flexible push rod 3,Realize the exciting vibration to excited object.
Embodiment 4:
As Figure 1-3, in embodiment 1-3 on the basis of any one, described pressing plate 13 is provided with regulation screw 14, and described regulation screw 14 is run through with pressing plate 13 by screw thread and is connected and is resisted against by screw rod end face on the section of described magnetostrictive bar 16.
Operation principle, situation is contacted by what regulation screw 14 can effectively check described magnetostrictive bar 16 and primary lever gripper shoe 11, after magnetostrictive bar 16 vibrates for a long time easily and between primary lever gripper shoe 11, produce gap, affect vibrating effect, regulation screw 14 screws to the side of magnetostrictive bar 16, can effectively eliminate gap, make magnetostrictive bar 16 remain with primary lever gripper shoe 11 and contact, realize uniformly, stable vibrating effect.
The above; it it is only preferred embodiment of the present utility model; not this utility model is done any pro forma restriction, every according to technical spirit of the present utility model, above example is made any simple modification, equivalent variations, within each falling within protection domain of the present utility model.

Claims (7)

1. the vibrator that a magnetostriction drives, it is characterised in that described vibrator includes housing (1), dividing plate (7), alternating magnetic field generator (12) and the magnetostrictive bar (16) being arranged in alternating magnetic field generator (12);Described magnetostrictive bar (16) one end is provided with pressing plate (13), described pressing plate (13) is connected with described housing (1) by screw thread, the other end is provided with push rod (6), described push rod (6) runs through described dividing plate (7) and bears against on the end face of magnetostrictive bar (16) and flexible push rod (3), and described flexible push rod (3) other end runs through described housing (1) and acts directly on excited body surface.
The vibrator that a kind of magnetostriction the most according to claim 1 drives, it is characterised in that be additionally provided with sleeve (10) between outside and housing (1) inwall of described alternating magnetic field generator (12).
nullThe vibrator that a kind of magnetostriction the most according to claim 2 drives,It is characterized in that,One-level displacement equations lever (9) it is additionally provided with between described magnetostrictive bar (16) and push rod (6),Described one-level displacement equations lever (9) is the both sides that axis is symmetrically distributed in push rod (6) with the axial line of push rod (6),And it is perpendicular to push rod (6),Described one-level displacement equations lever (9) one end is hinged on described sleeve (10),The other end is against on the end face of described push rod (6),Described one-level displacement equations lever (9) is additionally provided with primary lever gripper shoe (11) near the side of magnetostrictive bar (16),Magnetostrictive bar (16) is close in described primary lever gripper shoe (11) side,Opposite side end face is provided with salient point,Described salient point is in the position of close sleeve (10) one end 1/3rd of one-level displacement equations lever (9).
The vibrator that a kind of magnetostriction the most according to claim 3 drives, it is characterized in that, two grades of displacement equations lever group (4) it are additionally provided with between described push rod (6) and flexible push rod (3), described two grades of displacement equations lever group (4) are made up of four levers, and it is fixed into a Pedicellus et Pericarpium Trapae shape by the fulcrum (5) being connected with housing (1), it is symmetrically distributed in described push rod (6) axially both sides, it is hinged by hinged support (17) between homonymy lever, described hinged support (17) can slide with the arcuate groove (18) being positioned close on the lever of push rod (6) side arrange, described two grades of displacement equations lever group (4) two ends are respectively acting on push rod (6) and flexible push rod (3) end face.
5. the vibrator driven according to a kind of magnetostriction described in claim 1-4 any one, it is characterised in that be additionally provided with sealing ring (8) between described push rod (6) and dividing plate (7).
6. the vibrator driven according to a kind of magnetostriction described in claim 3 or 4, it is characterised in that be provided with rubber sheet gasket (15) between described alternating magnetic field generator (12) and primary lever gripper shoe (11).
7. the vibrator driven according to a kind of magnetostriction described in claim 1-4 any one, it is characterised in that be provided with back-moving spring (2) between described flexible push rod (3) and housing (1).
CN201620471970.4U 2016-05-23 2016-05-23 Magnetic induced shrinkage or elongation driven vibration exciter Expired - Fee Related CN205628520U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620471970.4U CN205628520U (en) 2016-05-23 2016-05-23 Magnetic induced shrinkage or elongation driven vibration exciter

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Application Number Priority Date Filing Date Title
CN201620471970.4U CN205628520U (en) 2016-05-23 2016-05-23 Magnetic induced shrinkage or elongation driven vibration exciter

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246560A (en) * 2017-05-31 2017-10-13 海宁市智慧光电有限公司 A kind of foldable LED illumination lamp
CN110794449A (en) * 2019-11-15 2020-02-14 中国矿业大学 Vibroseis device and installation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107246560A (en) * 2017-05-31 2017-10-13 海宁市智慧光电有限公司 A kind of foldable LED illumination lamp
CN110794449A (en) * 2019-11-15 2020-02-14 中国矿业大学 Vibroseis device and installation method thereof

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20161012

Termination date: 20210523