CN104240564B - Rational mechanics answering device - Google Patents
Rational mechanics answering device Download PDFInfo
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- CN104240564B CN104240564B CN201410340997.5A CN201410340997A CN104240564B CN 104240564 B CN104240564 B CN 104240564B CN 201410340997 A CN201410340997 A CN 201410340997A CN 104240564 B CN104240564 B CN 104240564B
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Abstract
Rational mechanics answering device, the rotating disk connect including support and support shaft, the exercise question module of some detachables on rotating disk, for driving exercise question module to make the sensor interlocking module of corresponding actions, the control module for controlling sensor interlocking module, described turntable shaft is connected on described support；Described sensor interlocking module is rack-mount by the first fixture；The clutch end of described sensor interlocking module is connected with the connection of corresponding exercise question module, the signal output part of the optoelectronic switch of described sensor interlocking module with for processing the control module of gathered data respectively.The beneficial effects of the present invention are：By abstract obscure rational mechanics material objectization；Rational mechanics is set intuitively to be realized with mechanical means；Coupled motion mechanism is brief efficiently；The linkage design of innovation makes mechanism simple efficient, simplifies operating process, realizes the synchronization of each part；Meanwhile, linkage only uses a power source, simplifies the design of control circuit.
Description
Technical field
The present invention relates to a kind of rational mechanics answering device.
Background technology
Rational mechanics is stronger, the important basic subject of an application, is had in many lives and engineering field
It is widely applied.It is real to grasp also relatively difficult but it is abstract that this subject seems comparing.Because past rational mechanics does not have substantially
There is the experimental provision being directed to, Engineering Students learn this theory and think that comparing is uninteresting, influence results of learning.
The content of the invention
The present invention there is no the problem of the experimental provision being directed to for current rational mechanics, it is proposed that a kind of to manage
By mechanics material objectization, the rational mechanics answering device of simple structure.
Rational mechanics answering device of the present invention, it is characterised in that：Rotating disk, the peace connect including support and support shaft
The exercise question module of some detachables on rotating disk, for drive exercise question module make corresponding actions sensor link mould
Block, the control module for controlling sensor interlocking module；Described sensor interlocking module is arranged on by the first fixture
On support；The clutch end of described sensor interlocking module is connected with corresponding exercise question module respectively, described sensor
The signal output part of the optoelectronic switch of interlocking module is connected with for processing the control module of gathered data；So that described exercise question
Module action accordingly is corresponded by the displacement data that the optoelectronic switch of sensor interlocking module is monitored；Described exercise question
Module is one or two or the two or more groups in equilibrium of couples device, momentum theorem device, instantaneous center of velocity subtraction unit
Close.
Described sensor interlocking module includes aggressive device, transmission device, at least one set of cam enlarger and at least
One group of four-bar mechanism, the first motor for being fixed on support side, the aggressive device include central shaft, clutch shaft bearing, center cone
Gear, described central shaft one end is installed described center bevel gear, the other end and is furnished with clutch shaft bearing, and the transmission device includes
Drive coordination wheel, drive coordination band and two are assembled with the trunnion axis of drive bevel gear, and described level is axisymmetric to be distributed in
The both sides of heart bevel gear, described drive bevel gear is engaged with described center bevel gear, wherein the horizontal the tip of the axis of side
Equipped with drive coordination wheel；The cam enlarger includes cam, vertical expansion link, the L-type connecting rod with guide groove, horizontal extension
Bar, described cam is fixed on the horizontal axis, and the L-type rod hinge connection with guide groove is on fixed transverse rod；Described vertical expansion link
One end fixed with described cam, the other end and described L-type rod hinge connection, the rotation of described trunnion axis changes into vertically
Expansion link is moved up and down；Described L-type connecting rod by vertical expansion link move up and down be converted into horizontal extension bar level move
It is dynamic；It is fixed for the horizontal optoelectronic switch for making the detection zone of horizontal optoelectronic switch movable on described horizontal extension bar；Institute
Stating four-bar mechanism includes 2 horizon bars, 2 connecting rods and an expansion links, wherein the horizon bar end described in is equipped with second
Synchronizing wheel, described drive coordination wheel is connected by drive coordination band with the second described synchronizing wheel；It is solid on described expansion link
The fixed vertical optoelectronic switch for being used to make the detection zone of vertical optoelectronic switch movable；The first described motor passes through power transmission
Synchronizing wheel is connected with the central shaft of described sensor interlocking module.
Described sensor interlocking module is provided with four groups of cam enlargers and two groups of four-bar mechanisms.
Described exercise question module is the one kind or two in equilibrium of couples device, momentum theorem device, instantaneous center of velocity subtraction unit
Plant or two or more combinations.
Described equilibrium of couples device includes disk, the second fixture, adjustable couple device, restraining force couple device, band
The axle for having many base plates of vertical rod, the disk is fixed in the pre- second bearing mounted in base plate, and two are fixed on described disk
Root magnetic stripe and a roller, wherein being furnished with scale on a magnetic stripe；The second described fixture is adhesively fixed by linear bearing
In vertical rod；Magnetic stripe on the second described fixture fixed disc；The restraining force couple device is included for being carried to intermediate plate
Spring for nominal force, the intermediate plate for providing torque to disk, described both ends of the spring are connected between two vertical rods,
Wherein one vertical rod is fixed with one end of intermediate plate, the other end of intermediate plate is hinged on disk by guide groove and roller；It is described adjustable
The first magnet, fine rule that couple device includes hook code, slided along magnetic stripe with a scale, described fine rule connecting hook code and the first magnetic
Iron, and it is wound on the support on base plate.
Described momentum theorem device includes emitter, reception device, bearing, the baffle plate for being trapped among bearing periphery,
The emitter, reception device and baffle plate are each attached on described bearing；The emitter is arranged in order including multiple
The steel ball for impacting small front apron, the second magnet for attracting steel ball, the groove aluminium for accommodating steel ball and for adjustment tank
The handle of the front and back position of aluminium；The reception device includes anchor ear, small front apron, butterfly, installation axle, installation axle bearing；Institute
The small front apron and described butterfly stated are separately mounted in described installation axle, and described anchor ear be arranged on groove aluminium and
Between installation axle.
Described emitter is provided with four for impacting the steel balls of small front apron, respectively the first steel ball, the second steel ball, the
Three steel balls and the 4th steel ball, wherein described magnet is located between described the first steel ball and the second steel ball.
Described instantaneous center of velocity subtraction unit includes mounting bracket, arrangements for speed regulation, detection means and the telecontrol equipment for supporting；
The arrangements for speed regulation include the second motor, the 3rd motor and DC speed regulator, described DC speed regulator and the 3rd motor connection；
The telecontrol equipment includes the second synchronizing wheel, the first Timing Belt, the second Timing Belt and is distributed in four first of mounting bracket corner
Synchronizing wheel, is connected with the second Timing Belt between the first Timing Belt, the synchronizing wheel of another two first and connects between the synchronizing wheel of two of which first
Connect, and the first Timing Belt is contacted with the second Timing Belt wheel surface synchronous with second；The 3rd described motor and one of which
First synchronizing wheel is connected, and the second motor is connected with the first synchronizing wheel in another group；The detection means is by optoelectronic switch
Detect the run duration of the second synchronizing wheel.
The mounting bracket is barricaded as by 2020 aluminium section bars, second bearing seat and 3rd bearing seat.
The course of work is as follows：1) motion of sensor interlocking module：In first motor rotation process, by drive coordination band
The drive coordination wheel of sensor interlocking module is driven to rotate, so as to drive trunnion axis to make corresponding horizontally or vertically direction
Displacement, while drive the horizontal optoelectronic switch and vertical optoelectronic switch installed in sensor interlocking module to make corresponding action,
So as to detect corresponding displacement signal by detection means, the substantial amounts of physical characteristic data during student inscribes is monitored, and
With big data treatment mechanism, quantitatively evaluating is made to the theoretical grasp of student, computing capability and the ability of practice；
2) motion of equilibrium of couples device：By the power for changing the quantity of hook code to change adjustable couple, so that the
Slide to change the arm of force of adjustable couple on the magnetic stripe with a scale that one magnet can be on disk；So as to cause disk and pass
The relative displacement produced between the optoelectronic switch of sensor interlocking module so that whole device collects phase by sensor interlocking module
The displacement signal answered, being subsequently sent to control device carries out data analysis；
3) motion of momentum theorem device：Second the first steel ball of attraction simultaneously launches the 3rd steel ball, and the 3rd steel ball is obtained
One specified initial velocity, the 3rd steel ball and the 4th steel ball collide so that the 4th steel ball releasing slots aluminium makees level throw motion；Hand
Handle can enable the 4th steel ball finally to impact small front apron with the front and back position of regulating tank aluminium, and when receiving four steel balls, the 4th steel ball leads to
Anchor ear impact small front apron is crossed, rotates installation axle, and then butterfly is turned over certain angle；So as to by butterfly and biography
The relative displacement produced between the optoelectronic switch of sensor interlocking module so that whole device collects phase by sensor interlocking module
The displacement signal answered, being subsequently sent to control device carries out data analysis；
4) motion of instantaneous center of velocity subtraction unit：The angular speed of the controlled motor of DC speed regulator the 3rd；The detection means is
The run duration of the second synchronizing wheel is detected by optoelectronic switch；So as to by the rotation of the second synchronizing wheel and sensor interlocking module
Optoelectronic switch between the relative displacement that produces so that whole device collects corresponding displacement letter by sensor interlocking module
Number, being subsequently sent to control device carries out data analysis.
Technology design of the invention is：The present invention is divided into exercise question module, sensor interlocking module and control module.The topic
Mesh module is made up of equilibrium of couples, momentum theorem, 3 devices of instantaneous Velocity Center Method, and exercise question can be removed and replaced for, to meet difference
Teaching demand.The interlocking module only needs a motor, realizes 6 sensors, the linkage of swivel and all transmission mechanisms.Institute
State control module and displacement signal is received by sensor, monitor the substantial amounts of physical characteristic data during student inscribes, and transport
Big data treatment mechanism is used, quantitatively evaluating is made to the theoretical grasp of student, computing capability and the ability of practice.
The beneficial effects of the present invention are：By abstract obscure rational mechanics material objectization.Rational mechanics is set intuitively to use machine
Tool means are realized, can help student's understanding and grasp ABC, and closing to reality life production, and it is positive that enhancing learns
Property, more improve the ability of practice of student；Coupled motion mechanism is brief efficiently；The linkage design of innovation makes mechanism simple efficient,
Operating process is simplified, the synchronization of each part is realized；Meanwhile, linkage only uses a power source, simplifies control circuit
Design.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is side view of the invention.
Fig. 3 is inventive sensor interlocking module schematic diagram.
Fig. 4 is equilibrium of couples exercise question schematic diagram of the present invention.
Fig. 5 is momentum theorem exercise question schematic diagram of the present invention.
Fig. 6 is instantaneous Velocity Center Method exercise question schematic diagram of the present invention.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
Rational mechanics answering device of the present invention, including support 1 and support shaft connect rotating disk 2, on rotating disk
Some detachables exercise question module 3, for driving exercise question module to make the sensor interlocking module 5 of corresponding actions, for controlling
The control module of sensor interlocking module processed, the described axle of rotating disk 2 is connected on described support 1；Described sensor linkage mould
Block 5 is arranged on support 1 by the first fixture 4；The clutch end of described sensor interlocking module 5 respectively with it is corresponding
Exercise question module 3 is connected, the signal output part of the optoelectronic switch of described sensor interlocking module 5 with for processing gathered data
Control module is connected；So that described exercise question module 3 is acted accordingly being monitored by the optoelectronic switch of sensor interlocking module 5
Displacement data correspond.
Described sensor interlocking module 5 includes aggressive device 51, transmission device 52, at least one set of cam enlarger 53
With at least one set of four-bar mechanism 54, be fixed on the first motor 55 of support side, the aggressive device 51 include central shaft 511,
The described center bevel gear 513, other end is installed and is matched somebody with somebody in clutch shaft bearing 512, center bevel gear 513, described one end of central shaft 511
There is clutch shaft bearing 512, the transmission device 52 is assembled with the trunnion axis 521 of drive bevel gear 522, drive coordination wheel including two
523rd, drive coordination band 524, the symmetrical both sides for being centrally located bevel gear 513 of described trunnion axis 521, described transmission cone
Gear 522 is engaged with described center bevel gear 513, and wherein the end of the trunnion axis 521 of side is equipped with drive coordination wheel 523；
The cam enlarger 53 includes cam 531, vertical expansion link 532, the L-type connecting rod 533 with guide groove, horizontal extension bar 534,
Described cam 531 is fixed on trunnion axis 521, and the L-type connecting rod 533 with guide groove is hinged on fixed transverse rod 535；Described is perpendicular
One end of straight expansion link 532 is fixed with described cam 531, the other end is hinged with described L-type connecting rod 533, described level
Axle 521 changes into moving up and down for vertical expansion link 532；Described L-type connecting rod 533 will be moved down on vertical expansion link
It is dynamic to be converted into moving horizontally for horizontal extension bar 534；It is fixed for establishing the horizon light by cable on described horizontal extension bar 534
The movable horizontal optoelectronic switch of the detection zone of pass；The four-bar mechanism 54 includes 2 horizon bars, 541,2 and of connecting rod 542
One expansion link 543, wherein the end of horizon bar 541 described in is equipped with the second synchronizing wheel 5411, described drive coordination wheel
525 are connected with 524 by drive coordination with the described synchronizing wheel 5411 of drive coordination wheel 523 and second；Described expansion link 543
On be fixed for making the movable vertical optoelectronic switch of the detection zone of the vertical optoelectronic switch；The first described motor 55 leads to
Power transmission synchronizing wheel 525 is crossed to be connected with the central shaft 511 of described sensor interlocking module.
Described sensor interlocking module 5 is provided with four groups of cam enlargers 53 and two groups of four-bar mechanisms 54.
Described exercise question module 3 is in equilibrium of couples device 31, momentum theorem device 32, instantaneous center of velocity subtraction unit 33
Plant or two kinds or two or more combinations.
Described equilibrium of couples device 31 includes disk 311, the second fixture 312, adjustable couple device 313, restraining force
Couple device 314, with many base plates of vertical rod 316 315, the axle of the disk 311 is fixed on pre- mounted in the second of base plate 315
On bearing, two magnetic stripes, 3111, roller is fixed on described disk 311, wherein being furnished with scale on a magnetic stripe；Described
Second fixture 312 is adhesively fixed in upper vertical rod by with linear bearing；The described fixed disc of the second fixture 312
Magnetic stripe 3111 on 311；The restraining force couple device 314 includes for the spring 3141 to intermediate plate offer nominal force, is used for
The intermediate plate 3142 of torque is provided to disk, the described two ends of spring 3141 are connected between two vertical rods, wherein one vertical
Bar is fixed with one end of intermediate plate 3142, the other end of intermediate plate 3142 is hinged on disk by guide groove and roller；The adjustable force
Even device 313 includes hook code 3131, the first magnet, the fine rule 3132 that are slided along magnetic stripe with a scale, and described fine rule 3133 connects
Connect the support that hook code 3131 and the first magnet are wound on base plate.
Described momentum theorem device 32 include emitter 321, reception device 322, bearing 323, for being trapped among bearing
The baffle plate 324 of periphery, the emitter 321, reception device 322 and baffle plate 324 are each attached on described bearing 323；Institute
Stating emitter 321 includes the multiple steel ball 3211 for impacting small front apron, the second magnetic for attracting steel ball being arranged in order
The handle 3214 of iron 3212, the groove aluminium 3213 for accommodating steel ball and the front and back position for adjustment tank aluminium；The reception device
322 include anchor ear 3221, small front apron 3222, butterfly 3223, installation axle 3224, installation axle bearing 3225；Described small gear
Plate 3222 and described butterfly 3223 are separately mounted in described installation axle 3224, and described anchor ear 3221 is set
Between groove aluminium 3213 and installation axle 3224.
Described emitter 321 is provided with four steel balls for impacting small front apron, respectively the first steel ball, the second steel
Ball, the 3rd steel ball and the 4th steel ball, wherein described magnet is located between described the first steel ball and the second steel ball.
Described instantaneous center of velocity subtraction unit 33 include for support mounting bracket 331, arrangements for speed regulation 332, detection means and
Telecontrol equipment 333；The arrangements for speed regulation 332 include the second motor 3321, the 3rd motor 3322 and DC speed regulator 3323, described
DC speed regulator 3323 be connected with the 3rd motor 3322；The telecontrol equipment 333 includes being distributed in four of mounting bracket corner
First synchronizing wheel 3331, the second synchronizing wheel 3332, the first Timing Belt 3333, the second Timing Belt 3334, two of which first are synchronous
The second Timing Belt 3334 between the first Timing Belt 3333, the first synchronizing wheel of another two 3331 is connected between wheel 3331 to connect, and
First Timing Belt 3333 is contacted with the second Timing Belt 3334 with the surface of the second synchronizing wheel 3332；Described 3rd motor 3322 with
The synchronizing wheel of one of which first is connected, and the second motor 3321 is connected with the first synchronizing wheel in another group；The detection means is
The run duration of the second synchronizing wheel is detected by optoelectronic switch.
The mounting bracket is barricaded as by 2020 aluminium section bars, second bearing seat and 3rd bearing seat.
The course of work is as follows：1) motion of sensor interlocking module：In first motor rotation process, by drive coordination band
The drive coordination wheel of sensor interlocking module is driven to rotate, so as to drive trunnion axis to make corresponding horizontally or vertically direction
Displacement, while drive the horizontal optoelectronic switch and vertical optoelectronic switch installed in sensor interlocking module to make corresponding action,
So as to detect corresponding displacement signal by detection means, the substantial amounts of physical characteristic data during student inscribes is monitored, and
With big data treatment mechanism, quantitatively evaluating is made to the theoretical grasp of student, computing capability and the ability of practice；
2) motion of equilibrium of couples device：By the power for changing the quantity of hook code to change adjustable couple, so that the
Slide to change the arm of force of adjustable couple on the magnetic stripe with a scale that one magnet can be on disk；So as to cause disk and pass
The relative displacement produced between the optoelectronic switch of sensor interlocking module so that whole device collects phase by sensor interlocking module
The displacement signal answered, being subsequently sent to control device carries out data analysis；
3) motion of momentum theorem device：Second the first steel ball of attraction simultaneously launches the 3rd steel ball, and the 3rd steel ball is obtained
One specified initial velocity, the 3rd steel ball and the 4th steel ball collide so that the 4th steel ball releasing slots aluminium makees level throw motion；Hand
Handle can enable the 4th steel ball finally to impact small front apron with the front and back position of regulating tank aluminium, and when receiving four steel balls, the 4th steel ball leads to
Anchor ear impact small front apron is crossed, rotates installation axle, and then butterfly is turned over certain angle；So as to by butterfly and biography
The relative displacement produced between the optoelectronic switch of sensor interlocking module so that whole device collects phase by sensor interlocking module
The displacement signal answered, being subsequently sent to control device carries out data analysis；
4) motion of instantaneous center of velocity subtraction unit：The angular speed of the controlled motor of DC speed regulator the 3rd；The detection means is
The run duration of the second synchronizing wheel is detected by optoelectronic switch；So as to by the rotation of the second synchronizing wheel and sensor interlocking module
Optoelectronic switch between the relative displacement that produces so that whole device collects corresponding displacement letter by sensor interlocking module
Number, being subsequently sent to control device carries out data analysis.
Technology design of the invention is：The present invention is divided into exercise question module, sensor interlocking module and control module.The topic
Mesh module is made up of equilibrium of couples, momentum theorem, 3 devices of instantaneous Velocity Center Method, and exercise question can be removed and replaced for, to meet difference
Teaching demand.The interlocking module only needs a motor, realizes 6 sensors, the linkage of swivel and all transmission mechanisms.Institute
State control module and displacement signal is received by sensor, monitor the substantial amounts of physical characteristic data during student inscribes, and transport
Big data treatment mechanism is used, quantitatively evaluating is made to the theoretical grasp of student, computing capability and the ability of practice.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (8)
1. rational mechanics answering device, it is characterised in that：If the rotating disk that is connect including support and support shaft, on rotating disk
The exercise question module of dry detachable, for drive exercise question module make corresponding actions sensor interlocking module, for control sense
The control module of device interlocking module；Described sensor interlocking module is rack-mount by the first fixture；Described biography
The clutch end of sensor interlocking module is connected with corresponding exercise question module, the optoelectronic switch of described sensor interlocking module
Signal output part is connected with for processing the control module of gathered data；The action accordingly of described exercise question module and sensor connection
The displacement data that the optoelectronic switch of dynamic model block is monitored is corresponded；Described exercise question module is equilibrium of couples device, momentum is fixed
Reason device, one or two or two or more combinations in instantaneous center of velocity subtraction unit.
2. rational mechanics answering device as claimed in claim 1, it is characterised in that：Described sensor interlocking module includes master
Dynamic device, transmission device, at least one set of cam enlarger and at least one set of four-bar mechanism, the first electricity for being fixed on support side
Machine, the aggressive device includes central shaft, clutch shaft bearing, center bevel gear, and described center is installed in described central shaft one end
Bevel gear, the other end are furnished with clutch shaft bearing, and the transmission device includes that drive coordination wheel, drive coordination band and two are assembled with transmission
The trunnion axis of bevel gear, described trunnion axis is symmetrically dispersed in the both sides of center bevel gear, described drive bevel gear and institute
The center bevel gear engagement stated, the wherein horizontal the tip of the axis of side is equipped with drive coordination wheel；The cam enlarger includes
Cam, vertical expansion link, the L-type connecting rod with guide groove, horizontal extension bar, described cam are fixed on the horizontal axis, the L with guide groove
Type rod hinge connection is on fixed transverse rod；One end of described vertical expansion link is fixed with described cam, the other end and described L
Type rod hinge connection, described trunnion axis changes into moving up and down for vertical expansion link；Described L-type connecting rod will be stretched vertically
Moving up and down for contracting bar is converted into moving horizontally for horizontal extension bar；It is fixed for making horizontal photoelectricity on described horizontal extension bar
The movable horizontal optoelectronic switch of the detection zone of switch；The four-bar mechanism is stretched including 2 horizon bars, 2 connecting rods and one
Contracting bar, wherein horizon bar end described in one is equipped with the second synchronizing wheel, described drive coordination wheel by drive coordination band with
Described the second synchronizing wheel connection；It is fixed for making movable perpendicular of detection zone of vertical optoelectronic switch on described expansion link
Direct light electric switch；The first described motor is connected by power transmission synchronizing wheel with the central shaft of described sensor interlocking module
Connect.
3. rational mechanics answering device as claimed in claim 2, it is characterised in that：Described sensor interlocking module is provided with four
Group cam enlarger and two groups of four-bar mechanisms.
4. rational mechanics answering device as claimed in claim 1, it is characterised in that：Described equilibrium of couples device includes circle
Disk, the second fixture, adjustable couple device, restraining force couple device, with many base plates of vertical rod, the axle of the disk is fixed
Pre- in the second bearing of base plate, two magnetic stripes and a roller are fixed on described disk, wherein matching somebody with somebody on a magnetic stripe
There is scale；The second described fixture is adhesively fixed in vertical rod by linear bearing；The second described fixture fixed disc
On magnetic stripe；The restraining force couple device is included for the spring to intermediate plate offer nominal force, for providing torque to disk
Intermediate plate, described both ends of the spring is connected between two vertical rods, wherein a vertical rod fixed with one end of intermediate plate, intermediate plate
The other end be hinged on disk by guide groove and roller；The adjustable couple device includes hook code, is slided along magnetic stripe with a scale
Dynamic the first magnet, fine rule, described fine rule connecting hook code and the first magnet, and it is wound on the support on base plate.
5. rational mechanics answering device as claimed in claim 1, it is characterised in that：Described momentum theorem device includes transmitting
Device, reception device, bearing, the baffle plate for being trapped among bearing periphery, the emitter, reception device and baffle plate are each attached to
On described bearing；The emitter is including multiple steel balls for impacting small front apron being arranged in order, for attracting steel ball
The second magnet, the groove aluminium for accommodating steel ball and the front and back position for adjustment tank aluminium handle；The reception device includes
Anchor ear, small front apron, butterfly, installation axle, installation axle bearing；Described small front apron and described butterfly is separately mounted to
Anchor ear in described installation axle and described is arranged between groove aluminium and installation axle.
6. rational mechanics answering device as claimed in claim 5, it is characterised in that：Described emitter is provided with four to be used for
Impact the steel ball of small front apron, respectively the first steel ball, the second steel ball, the 3rd steel ball and the 4th steel ball, wherein described magnet position
Between described the first steel ball and the second steel ball.
7. rational mechanics answering device as claimed in claim 1, it is characterised in that：Described instantaneous center of velocity subtraction unit includes using
Mounting bracket, arrangements for speed regulation, detection means and telecontrol equipment in support；The arrangements for speed regulation include the second motor, the 3rd motor
And DC speed regulator, described DC speed regulator and the 3rd motor connection；The telecontrol equipment includes the second synchronizing wheel, first same
Walk band, the second Timing Belt and be distributed in four first synchronizing wheels in mounting bracket corner, be connected between the synchronizing wheel of two of which first
Between first Timing Belt, the synchronizing wheel of another two first second Timing Belt connection, and the first Timing Belt and the second Timing Belt with
Second synchronous wheel surface contact；The 3rd described motor is connected with the synchronizing wheel of one of which first, the second motor with another group in
The first synchronizing wheel be connected；The detection means is that the run duration of the second synchronizing wheel is detected by optoelectronic switch.
8. rational mechanics answering device as claimed in claim 7, it is characterised in that：The mounting bracket is by 2020 aluminium section bars,
Two bearing bracket and 3rd bearing seat are barricaded as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410340997.5A CN104240564B (en) | 2014-07-17 | 2014-07-17 | Rational mechanics answering device |
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| CN201410340997.5A CN104240564B (en) | 2014-07-17 | 2014-07-17 | Rational mechanics answering device |
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| CN104240564A CN104240564A (en) | 2014-12-24 |
| CN104240564B true CN104240564B (en) | 2017-06-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107610560B (en) * | 2017-08-31 | 2021-06-29 | 湖南惟楚科教实训室设备有限公司 | Instant center demonstration instrument |
| CN108648571B (en) * | 2018-07-11 | 2019-09-24 | 绍兴文理学院 | A kind of demonstrator of rational mechanics equilibrium of couples |
| CN117137487B (en) * | 2023-09-08 | 2024-03-29 | 黑龙江中医药大学 | Auxiliary diagnosis device for depression |
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| CN101409025A (en) * | 2007-10-09 | 2009-04-15 | 株式会社新兴技术研究所 | Experimental and teaching system using a plurality of units |
| CN202512737U (en) * | 2012-01-17 | 2012-10-31 | 山东交通学院 | Analysis device for discussing and teaching general mechanics |
| CN103745645A (en) * | 2013-10-31 | 2014-04-23 | 马登云 | Multifunctional mechanical principle teaching demonstration instrument |
| CN204029224U (en) * | 2014-07-17 | 2014-12-17 | 浙江工业大学 | Theoretical mechanics answering device |
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