CN101149876A - An Angular Displacement Mechanical Oscillator - Google Patents

An Angular Displacement Mechanical Oscillator Download PDF

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Publication number
CN101149876A
CN101149876A CNA2007101221020A CN200710122102A CN101149876A CN 101149876 A CN101149876 A CN 101149876A CN A2007101221020 A CNA2007101221020 A CN A2007101221020A CN 200710122102 A CN200710122102 A CN 200710122102A CN 101149876 A CN101149876 A CN 101149876A
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angular displacement
motor
rotating shaft
mechanical oscillator
crank arm
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CN100565617C (en
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祝孝正
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Beijing University of Technology
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Beijing University of Technology
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Abstract

一种角位移机械振荡器,可广泛用于大中学物理实验演示中,这种角位移机械振荡器是在电机的旋转轴上,装置一偏心转轮(3),偏心转轮(3)与滑动连杆(6)连接,滑动连杆(6)与曲臂(4)连接,曲臂(4)连接一个转轴(2),转轴(2)设置在用于固定电机(7)和偏心转轮(3)的底板(1)上;当电机(7)转动时,偏心转轮(3)做椭圆转动,并带动滑动连杆(6)和曲臂(4),使其在转轴(2)产生角位移的往复摆动,将电机的旋转运动转换为转轴的角位移往复摆动。由于电机的转速连续可调,该角位移机械振荡器的振动频率也随之在较宽的频率区间连续可调,本发明提供的这种角位移机械振荡器,造价低,演示效果明显,从而激发学生的学习兴趣,增强物理演示实验的感染力。

Figure 200710122102

An angular displacement mechanical oscillator can be widely used in the demonstration of physics experiments in universities and middle schools. This angular displacement mechanical oscillator is provided with an eccentric runner (3) on the rotating shaft of the motor, and the eccentric runner (3) and The sliding link (6) is connected, the sliding link (6) is connected with the crank arm (4), the crank arm (4) is connected with a rotating shaft (2), and the rotating shaft (2) is arranged on the on the bottom plate (1) of the wheel (3); when the motor (7) rotates, the eccentric wheel (3) rotates in an ellipse, and drives the sliding link (6) and the crank arm (4) to make it rotate on the rotating shaft (2) ) generates a reciprocating swing of angular displacement, and converts the rotational motion of the motor into the reciprocating swing of the angular displacement of the rotating shaft. Since the rotational speed of the motor is continuously adjustable, the vibration frequency of the angular displacement mechanical oscillator is also continuously adjustable in a wider frequency range. The angular displacement mechanical oscillator provided by the present invention has low cost and obvious demonstration effect, thus Stimulate students' interest in learning and enhance the appeal of physics demonstration experiments.

Figure 200710122102

Description

A kind of angular displacement mechanical oscillator
Technical field
The present invention relates to a kind of angular displacement mechanical oscillator, can be widely used in the big middle school physical experiment demonstration, all use as physics demonstrations such as figure such as optical scanning, Li Sa to obtain angular displacement mechanical oscillator.
Background technology
At present, in big physical experiment teaching in middle schools, physics demonstration is indispensable laboratory facilities, and the mechanical vibration part is occupied the proportion of outbalance in physics demonstration experiment.Prior art is an a kind of scanning swing motor (English name is scaner), is the axial deflection swing, the swing deflection angle is to the maximum ± and 30 °.Its principle of work as shown in Figure 4, permanent magnet rotor 15 is because the effect of magnetic field force own is equilibrated at the equilibrium position between two soft iron pole shoes 14 (stator).When the coil in the two soft iron pole shoes 13 passes through exchange current, between two soft irons, produce an alternating magnetic field immediately, under the effect of this magnetic field force, be subjected to ordering about of this power to place therebetween rotor 15 to leave the equilibrium position produces reciprocal deflection and swings thereupon, its frequency is consistent with the exchange current in the coil, and its deflection amplitude of oscillation depends on the size of magnetic field force that electric current produces.
Existing oscillator cost height, demonstration effect simply can not satisfy the various requirement of big middle school Physical Experiment Course demonstration effect.
Summary of the invention
The objective of the invention is to, provide a kind of simple, cost is low, demonstration outstanding effect angular displacement mechanical oscillator.
Structural principle of the present invention is that rotatablely moving of motor is converted to the angular displacement reciprocally swinging, its technical scheme is shown in structural representation Fig. 1,2, this angular displacement mechanical oscillator is device one an eccentric runner 3 on the turning axle of motor, eccentric runner 3 is connected with slide link 6, slide link 64 is connected with cranking arm, cranking arm 4 connects a rotating shaft 2, and rotating shaft 2 is arranged on the base plate 1 that is used for fixing motor and eccentric runner 3; When motor 7 rotated, eccentric runner 3 was done oval the rotation, and drove slide link 6 and crank arm 4, made it produce the reciprocally swinging of angular displacement in rotating shaft 2, rotatablely moving of motor was converted to the reciprocally swinging of angular displacement.
The motor that uses in the described angular displacement mechanical oscillator can be selected direct current generator for use, between eccentric runner 3 and the slide link 6, slide link 6 and cranking arm between 4, can adopt bearing to connect.
Because the rotating speed of direct current generator is adjustable continuously, the vibration frequency of this angular displacement mechanical oscillator is also adjustable continuously at the frequency separation of broad thereupon, can make the vibration frequency interval of angular displacement mechanical oscillator that favorable linearity and response are arranged, its deflection angle displacement is ± 10 °, vibration frequency 0-140Hz..
The difference of this angular displacement mechanical oscillator provided by the invention and prior art maximum is: prior art is a kind of axial wobble motor, and the present invention changes the rotation of motor into angular displacement deflection vibration by physical construction, driving circuit of the prior art is comparatively complicated, and driving circuit of the present invention is comparatively simplified, and only needing to adjust direct supply can pilot angle displacement deflection vibration frequency.Therefore cost is low, and the demonstration effect is obvious, thereby motivates students' interest in learning, and strengthens the appeal of physics demonstration experiment.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present invention, and Fig. 2 is a side-looking structural representation of the present invention: 1, base plate 2, rotating shaft 3, eccentric runner 4, crank arm 5, bearing 6, slide link 7, direct current generator;
Fig. 3 is an application examples synoptic diagram of the present invention: 8, angular displacement mechanical oscillator 9, catoptron 10, laser instrument 11, lissajous figures;
The oscillator of Fig. 4 scanning swing of the prior art electric motor type: 12, aluminum hull 13, coil 14, soft iron pole shoe 15, permanent magnet rotor 16, bearing
Embodiment
The present invention mainly includes: base plate 1, and motor, parts such as eccentric runner 3 and connected mechanical linkage thereof can be with reference to Fig. 1,2, adopts conventional mechanical means, assembles according to the description of aforementioned techniques scheme part and get final product.
Present embodiment provides an example that is applied in the Physical Experiment demonstration, and this embodiment is the demonstration example about the laser lissajous figures as shown in Figure 3, has used two angular displacement mechanical oscillators 8 in this demonstration example 1, 8 2, difference fit on catoptron 9 in two angular displacement mechanical oscillator rotating shafts 2, one of them catoptron is that X-direction is placed, another is that Y direction is placed, and two catoptrons 9 of X-direction and Y direction 1, 9 2Vertical mutually the placement; When laser beam successively by two mirror reflects to screen the time, the angular displacement mechanical oscillator that drives Y direction vibrates, laser is swung with vertical direction, at this moment catoptron 9 1Form an optical lever catoptron 9 with light path 1Microvibration amplify, and shine the catoptron 9 of the angular displacement mechanical oscillator of X-direction 2Axis on, the swing of acquisition horizontal direction, the vibration frequency of two mechnical oscillators of regulation and control, when making the different each other ratio of integers of two mechnical oscillator frequencies, this moment, laser projections owing to the visual persistence effect of human eye, then showed various stable laser lissajous figures 11 on screen on screen.

Claims (2)

1.一种角位移机械振荡器,主要包括有电机,本发明的特征在于,在电机旋转轴上装置一偏心转轮(3),偏心转轮(3)与滑动连杆(6)连接,滑动连杆(6)与曲臂(4)的一端连接,曲臂(4)连接一个转轴(2),转轴(2)设置在用于固定电机(7)和偏心转轮(3)的底板(1)上;当电机(7)转动时,偏心转轮(3)做椭圆转动,并带动滑动连杆(6)和曲臂(4),使其在转轴(2)产生角位移的往复摆动,将电机的旋转运动转换为角位移的往复摆动。1. a kind of angular displacement mechanical oscillator mainly comprises motor, and the present invention is characterized in that, device an eccentric runner (3) on motor rotating shaft, eccentric runner (3) is connected with sliding link (6), The sliding link (6) is connected to one end of the crank arm (4), and the crank arm (4) is connected to a rotating shaft (2), and the rotating shaft (2) is arranged on the bottom plate for fixing the motor (7) and the eccentric runner (3) (1) on; when the motor (7) rotates, the eccentric runner (3) rotates in an ellipse, and drives the sliding connecting rod (6) and the crank arm (4) to make it reciprocate with angular displacement on the rotating shaft (2) Swing, which converts the rotational motion of the motor into a reciprocating swing of angular displacement. 2.根据权利要求1所述的角位移机械振荡器,其特征在于:电机可选用直流电机,偏心转轮(3)与滑动连杆(6)之间、滑动连杆(6)与曲臂(4)之间,可采用轴承连接。2. The angular displacement mechanical oscillator according to claim 1, characterized in that: the motor can be a DC motor, between the eccentric runner (3) and the sliding link (6), between the sliding link (6) and the crank arm (4) can be connected by bearings.
CNB2007101221020A 2007-09-21 2007-09-21 A kind of angular displacement mechanical oscillator Expired - Fee Related CN100565617C (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
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CN102897576A (en) * 2012-10-15 2013-01-30 宁波成路纸品制造有限公司 Paper sorting machine
CN103256884A (en) * 2012-02-21 2013-08-21 罗伯特·博世有限公司 Arrangement for detection of rotation angles at rotating component
CN103289898A (en) * 2013-07-02 2013-09-11 黄山市中新生物科技有限公司 Elliptical orbit type cell culture oscillator
CN104851338A (en) * 2015-06-10 2015-08-19 北京联合大学 Portable multifunctional laser vibration synthesis demonstration device
CN107861239A (en) * 2017-12-08 2018-03-30 潍坊学院 A kind of method and apparatus that light beam scanning is realized based on two section connecting rods
CN107976803A (en) * 2017-12-08 2018-05-01 潍坊学院 A kind of method and apparatus that light beam scanning is realized based on rocking bar
CN110810012A (en) * 2019-10-31 2020-02-21 贵州贵捷科技有限公司 A handheld portable blueberry picking device and control method
WO2020192075A1 (en) * 2019-03-25 2020-10-01 苏州富强科技有限公司 Eccentric-rotation-type multi-station switching rotation device
CN112270879A (en) * 2020-10-25 2021-01-26 齐齐哈尔大学 Method for manufacturing small brushless commutatorless motor

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CN102766451A (en) * 2012-06-29 2012-11-07 彩虹集团电子股份有限公司 Reproducing method for recovered powder of trichromatic fluorescent powder for CCFL

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US4026383A (en) * 1974-11-04 1977-05-31 Texas Instruments Incorporated Gyroscopic vibrator
CN2124060U (en) * 1992-05-16 1992-12-09 河北大学 Mechanical oscillator
US5221500A (en) * 1992-07-10 1993-06-22 The Goodyear Tire & Rubber Company Mechanical in situ curometer
CN2498583Y (en) * 2001-09-28 2002-07-03 长沙天心区机电教学仪器厂 Crank, guide pole and slide block mechanism test table
CN1640704A (en) * 2004-01-13 2005-07-20 中国科学院长春光学精密机械与物理研究所 Non-angular-displacement shock absorber
CN1730971A (en) * 2004-11-16 2006-02-08 中国科学院长春光学精密机械与物理研究所 Vibration damping device that converts angular displacement into linear displacement
CN201134176Y (en) * 2007-09-21 2008-10-15 北京工业大学 An angular displacement mechanical oscillator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103256884A (en) * 2012-02-21 2013-08-21 罗伯特·博世有限公司 Arrangement for detection of rotation angles at rotating component
CN102897576A (en) * 2012-10-15 2013-01-30 宁波成路纸品制造有限公司 Paper sorting machine
CN103289898A (en) * 2013-07-02 2013-09-11 黄山市中新生物科技有限公司 Elliptical orbit type cell culture oscillator
CN103289898B (en) * 2013-07-02 2014-06-25 黄山市中新生物科技有限公司 Elliptical orbit type cell culture oscillator
CN104851338A (en) * 2015-06-10 2015-08-19 北京联合大学 Portable multifunctional laser vibration synthesis demonstration device
CN107861239A (en) * 2017-12-08 2018-03-30 潍坊学院 A kind of method and apparatus that light beam scanning is realized based on two section connecting rods
CN107976803A (en) * 2017-12-08 2018-05-01 潍坊学院 A kind of method and apparatus that light beam scanning is realized based on rocking bar
WO2020192075A1 (en) * 2019-03-25 2020-10-01 苏州富强科技有限公司 Eccentric-rotation-type multi-station switching rotation device
CN110810012A (en) * 2019-10-31 2020-02-21 贵州贵捷科技有限公司 A handheld portable blueberry picking device and control method
CN112270879A (en) * 2020-10-25 2021-01-26 齐齐哈尔大学 Method for manufacturing small brushless commutatorless motor
CN112270879B (en) * 2020-10-25 2022-04-05 齐齐哈尔大学 Method for manufacturing small brushless commutatorless motor

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