CN106898202A - Integrate the experimental bench of physics teaching and Students ' Learning - Google Patents
Integrate the experimental bench of physics teaching and Students ' Learning Download PDFInfo
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- CN106898202A CN106898202A CN201710272876.5A CN201710272876A CN106898202A CN 106898202 A CN106898202 A CN 106898202A CN 201710272876 A CN201710272876 A CN 201710272876A CN 106898202 A CN106898202 A CN 106898202A
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- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
Integrate the experimental bench of physics teaching and Students ' Learning, for promoting student to the grasp and study of physical knowledge and being easy to the teaching of teacher.It includes support base and supporting table, supporting table is arranged on the top of support base, supporting leg is provided with the bottom of support base, the first experiment porch and the second experiment porch are provided with supporting table, first, second experiment porch is rotatably installed on lifting frame, and the lifting mechanism for driving lifting frame to move up and down is provided with supporting table；The switching mechanism for driving first, second experiment porch to rotate is provided with lifting frame；Friction measurement unit is provided with the first experiment porch, test the speed unit and skewback unit are provided with the second experiment porch.The setting of friction measurement unit can realize the measurement to frictional force, and the setting of the unit that tests the speed can realize the measurement to average speed, and the setting of skewback unit can promote understanding of the student to this physical model of skewback.
Description
Technical field
The present invention relates to Students ' Learning teaching aid technical field, specifically a kind of collection physics teaching and Students ' Learning are
The experimental bench of one.
Background technology
In the learning process of student, particularly in the learning process of Physics Course, for the palm of some physical knowledges
The experiment that seeing is believing of situation needs is held to ensure.And in some cases, also only experiment could illustrate physical principle, promote
Enter study of the student to physical knowledge.
The content of the invention
It is an object of the invention to provide a kind of experimental bench for integrating physics teaching and Students ' Learning, for promoting to learn
Give birth to grasp and study to physical knowledge and be easy to the teaching of teacher.
The technical scheme adopted by the invention to solve the technical problem is that：Integrate the reality of physics teaching and Students ' Learning
Platform is tested, it includes support base and supporting table, the supporting table is arranged on the top of support base, is provided with the bottom of the support base
Supporting leg, it is characterized in that, the first experiment porch and the second experiment porch, first, second experiment porch are provided with the supporting table
It is rotatably installed in respectively on a lifting frame, the lifting mechanism for driving lifting frame to move up and down is provided with supporting table；In lifting
Frame is provided with the switching mechanism for driving first, second experiment porch in vertical rotation in surface；
It is provided with friction measurement unit on first experiment porch, the friction measurement unit includes being arranged on the
On one experiment porch some first test the degree of roughness of tracks, the mat being arranged on the first experiment track and each mat not
The first sliding shoe that is identical, being arranged on mat along rectilinear movement and the first sliding shoe of pulling do the translation of uniform rectilinear's movement
Mechanism, the translation mechanism mainly includes translation motor, is arranged on the first runner of translation motor output end, is arranged on first turn
Weight beam, connection the first sliding shoe and weight beam and connecting spring dynamometer between wheel and the first sliding shoe and
The connecting rope of the first runner；
The unit that tests the speed is provided with second experiment porch, the unit that tests the speed includes being arranged on the second experiment porch
Second experiment track, be arranged on along line activities on the second experiment track the second sliding shoe, be arranged on the second experiment track
The transmitting pedestal in left side, the expelling plate being movably arranged on the inside of transmitting pedestal, the hair being arranged between expelling plate and transmitting pedestal
Projectile spring, the cushion pad being arranged on the right side of the second experiment track, left and right be arranged on first sensor on the second experiment track and
Second sensor, the dial plate being arranged on the second experiment porch, the vertical pivot for being arranged on dial plate center, the finger being arranged on vertical pivot
Pin, the timing motor for driving vertical axis, the timing motor, first sensor and second sensor connect with controller signals
Connect；
Skewback unit is additionally provided with second experiment porch, the skewback unit includes being hingedly mounted on the second experiment
Skewback on platform, the 3rd sliding shoe being placed on skewback, the lifting being arranged between the second experiment porch and skewback bottom
Cylinder, the sensor stand being arranged on skewback, the range sensor being arranged on inside sensor stand, it is arranged on sensor branch
Buffer board between frame and the 3rd sliding shoe, the buffer spring being arranged between buffer board and sensor stand, in the buffering
Plate is provided with the circular hole of sensor of just adjusting the distance.
Further, walking unit is provided between the supporting leg, the walking unit mainly includes being arranged on front and rear two
Connecting shaft between supporting leg, it is fixed on the two ends of connecting shaft and movable block, the company of being rotatably installed in being connected is slided up and down with supporting leg
The wheel carrier at spindle two ends, the road wheel being rotatably installed on wheel carrier, the back-moving spring being arranged between movable block and supporting leg, setting
The pulling mechanism of lockable mechanism and the work of driving lockable mechanism or failure between supporting leg and movable block.
Further, the lockable mechanism includes the lock device being arranged on supporting leg, is slidably mounted in lock device inner chamber
Slide plate, the lock pin being fixed on slide plate, the locking spring being arranged between lock device and slide plate, be fixed on movable block
Latch, in the locking hole that the effect end of lock pin is extend on latch in the presence of the locking spring, is being placed in lock device
Baffle plate is fixed with outside lock pin.
Further, the pulling mechanism includes the rotating shaft being rotatably installed between front and rear supporting leg, is fixed in rotating shaft
Handle, the first runner for being rotatably installed in supporting leg bottom, the drive bevel gear for being fixed on rotating shaft two ends are engaged with drive bevel gear
And be rotatably installed in the driven wheel of differential on supporting leg engaged with driven wheel of differential coordinate the second runner and be arranged on baffle plate with
Bracing wire between second runner outer wall, and bracing wire and the second runner wall contacts.
Further, the lifting mechanism includes the cam motor being fixed in supporting table inner chamber, is fixed on cam motor
Cam on output shaft, the connecting rod being arranged between cam peak and lifting frame, are fixed with hollow in the bottom of lifting frame
Motion bar, is provided with the fix bar being slidably connected with motion bar in the inner chamber of supporting table.
Further, the switching mechanism includes the upset motor being fixed on lifting frame, is fixed on upset motor output
The worm gear that worm screw and worm engaging on axle coordinate and be fixed on the first experiment porch or the second experiment porch.
Further, the translation mechanism also includes the second runner being rotatably installed on the first experiment porch, is arranged on
Bridge between first runner and the second runner, the tension pulley support being arranged on the inside of bridge, be arranged on tension pulley support with across
Tensioning spring, the tensioning wheel being rotatably installed on tension pulley support between beam, the contacts-side-down of connecting rope and tensioning wheel and with
The upper contact of the second runner.
Further, angle measuring unit is provided with second experiment porch, the angle measuring unit includes hinge
Connect the fan-shaped drive block and drive block that the fan-shaped bevel protractor on the second experiment porch is fixedly connected with bevel protractor
The telescope motor that meshed gears, drive gear are rotated, the setting coaxial with the jointed shaft of skewback of the jointed shaft of the bevel protractor,
The side of skewback is provided with marking line, the extended line of marking line by skewback pin joint.
Further, the road wheel on the wheel carrier is three and is located on three summits of triangle respectively.
Further, SDeflector is equipped with the side of first, second sliding shoe, the SDeflector and first, second is in fact
Test the inwall contact of track.
The beneficial effects of the invention are as follows：The experimental bench for integrating physics teaching and Students ' Learning that the present invention is provided, OK
The setting for walking unit can be in order to the movement of whole experimental bench；The setting of friction measurement unit can be real on first experiment porch
Now to the measurement of frictional force, promote study of the student to frictional force；The setting of unit of being tested the speed on second experiment porch can be realized
Measurement to average speed, promotes understanding of the student to average speed；The setting of skewback unit, Ke Yishi on second experiment porch
Now to the measurement of the frictional force on skewback, promote understanding of the student to this physical model of skewback.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention；
Fig. 2 is the scheme of installation of road wheel；
Fig. 3 is the scheme of installation of wheel carrier；
Fig. 4 is the internal structure schematic diagram of supporting leg；
Fig. 5 is the scheme of installation of wheel carrier and road wheel；
Fig. 6 is lockable mechanism, the cooperation schematic diagram of bracing wire；
Fig. 7 is the internal structure schematic diagram of lockable mechanism；
Fig. 8 is the scheme of installation of upper line wheel；
Fig. 9 is the interior wall construction schematic diagram of lock device；
Figure 10 is the structural representation of slide plate；
Figure 11 is the A in Fig. 1 to local direction view；
Figure 12 is the schematic diagram of the first experiment porch；
Figure 13 is the schematic diagram of friction measurement unit；
Figure 14 is the schematic diagram of the first experiment track；
Figure 15 is partial enlarged drawing at the B in Figure 13；
Figure 16 is partial enlarged drawing at the C in Figure 13；
Figure 17 is the position view of tensioning wheel；
Figure 18 is the schematic diagram of tension pulley support；
Figure 19 is the schematic diagram of lifting mechanism；
Figure 20 is partial enlarged drawing at the D in Figure 19；
Figure 21 is the schematic diagram of the second experiment porch；
Figure 22 is the schematic diagram of unit of testing the speed；
Figure 23 is the schematic diagram of skewback unit；
Figure 24 is the scheme of installation of skewback；
Figure 25 is the scheme of installation of bevel protractor；
Figure 26 is the driving schematic diagram of bevel protractor；
Figure 27 is to test schematic diagram of the body by static change when mobile on skewback after skewback rises；
In figure：1 support base, 11 supporting legs, 111 spring cavitys, 112 slide block chambers, 113 bracing wire chambers, 114 installation cavitys, 115 circular holes,
12 supporting tables, 13 back-moving springs, 131 lead columns, 14 lock devices, 141 slide plates, 142 lock pins, 143 baffle plates, 144 end caps, 145
Rotating ring, 146 locking springs, 147 elongated slots, 148 balls, 15 bracing wires, 151 times line wheels, line wheel on 152,16 driven wheels of differential,
161 drive bevel gears, 17 rotating shafts, 171 retainer rings, 172 handles, 18 closures；
2 wheel carriers, 21 road wheels, 22 connecting shafts, 23 bearings, 24 movable blocks, 25 latch；
3 first experiment porch, 30 rotating shafts, 31 first experiment tracks, 32 mats, 33 translation motors, 34 first runners, 341
Second runner, 35 first sliding shoes, 351 otic placodes, 352 Weight boxes, 353 SDeflectors, 36 tensioning wheels, 361 tension pulley supports, 37 across
Beam, 371 tensioning springs, 38 connecting ropes, 39 weight beams；
4 lifting frames, 41 reinforcements, 42 motion bars, 43 fix bars, 44 supporting plates, 441 supporting plate journal stirrups, 45 cams, 451 connecting rods,
46 cam motors, 461 motor support frames, 47 worm gears, 471 worm screws, 472 upset motors；
5 second experiment porch, 51 second experiment tracks, 52 transmitting pedestals, 521 transmitting springs, 522 expelling plates, 53 second
Sliding shoe, 541 first sensors, 542 second sensors, 55 cushion pads, 56 dial plates, 561 vertical pivots, 562 pointers；
6 skewbacks, 60 skewback journal stirrups, 61 the 3rd sliding shoes, 611 counterweight chambers, 62 directive wheels, 63 sensor stands, 64 distances
Sensor, 65 buffer boards, 651 buffer springs, 66 are hinged, 67 marking lines, 68 lifting cylinders, 681 cylinder journal stirrups；
7 bevel protractors, 70 angle lines, 71 chi rings, 72 drive blocks, 73 gears, 74 telescope motors.
Specific embodiment
As shown in Fig. 1 to Figure 27, the invention mainly comprises support base 1, walking unit, supporting table 12, the first experiment porch,
Friction measurement unit, the second experiment porch, the unit that tests the speed, skewback unit and angle measuring unit, below in conjunction with the accompanying drawings to each
Part is described in detail.
Support base：
As shown in figure 1, support member of the support base 1 for cuboid, and be hollow structure, for installing other parts.
Four supporting legs 11 are provided with the bottom of support base, supporting leg is used to realize the support to support base.It is whole real by the setting of supporting leg
That tests that platform can consolidate is placed in indoor environment, for convenience of the movement of whole experimental bench, walking unit is provided between the legs.
Walking unit：
As shown in Figure 2 and Figure 3, walking unit is arranged between two pairs of supporting legs of left and right arrangement, and between front and rear two supporting leg
It is provided with a walking unit.Walking unit mainly includes wheel carrier 2, road wheel 21, lockable mechanism and relieving mechanism.
As shown in figure 4, the spring cavity 111 and slide block chamber 112 for connecting setting up and down are provided with the right side of supporting leg, in supporting leg
Left side is provided with bracing wire chamber 113, and installation cavity 114 is provided between the bottom in bracing wire chamber and slide block chamber, is provided with above bracing wire chamber
Circular hole 115, circular hole is connected with bracing wire chamber and the axis of circular hole is located in horizontal plane.
As shown in figure 5, wheel carrier 2 is triangular structure, a road wheel is rotatablely equipped with respectively on three angles of wheel carrier
21, each walking unit includes two wheel carriers 2, and two wheel carriers are rotatably installed in the two ends of connecting shaft by bearing 23 respectively, in wheel
Frame is provided with blind hole, and bearing is fixed with blind hole.The movable block of " 7 " font is also respectively fixed with the two ends of each connecting shaft
24, the latch 25 of triangle is fixed with the inside of movable block, it is provided with locking hole on the inclined-plane of latch.Connecting shaft two ends
Movable block be placed in corresponding spring cavity 111, back-moving spring 13 is provided between the top of movable block and the top of spring cavity,
To realize the guiding to back-moving spring, the lead column 131 being placed on the inside of back-moving spring is fixed with the top of spring cavity.Tensing
In the presence of spring, the bottom surface of the bottom higher than supporting leg of the road wheel of lower section.Connecting shaft is slammed with pin to be pressed downward, can order about down
Two road wheels of side are contacted with ground.Now to realize the locking to wheel carrier, lockable mechanism is provided between movable block and supporting leg.
As shown in fig. 7, lockable mechanism includes lock device 14, slide plate 141, lock pin 142, baffle plate 143, end cap 144, locking
Spring 146 and ball 148, lock device are the hollow structure of open at one end, and slide plate is slidably fitted with the inner chamber of lock device
141, as shown in figure 9, some equally distributed elongated slots 147 on same circumference are provided with the inwall of lock device, such as Figure 10 institutes
Show, some balls 148 being circumferentially uniformly arranged are provided with the circular outer wall of slide plate, and ball can do 360 degree on slide plate
Rotate, the part that slide plate is placed in rear ball in lock device inner chamber is placed in elongated slot.Lock pin 142 is fixed with slide plate,
The opening end of lock device is provided with end cap 144, and end cap is provided with the rotating ring 145 being threadedly coupled with lock device.In end cap and slide plate
Between be provided with locking spring 146, lock device is stretched out at the effect end of lock pin in the presence of locking spring, outside lock device
Baffle plate 146 is fixed with lock pin.
As shown in fig. 6, being have bracing wire 15 on baffle plate, one end and the baffle plate of bracing wire are connected, and the other end of bracing wire is fixed on
On the outer wall of upper line wheel 152, wheel of reaching the standard grade is rotatably installed in circular hole, and the lower rotational in bracing wire chamber is provided with lower line wheel 151, is drawn
Line is fixed on line wheel outer wall after bypassing lower line wheel.As shown in figure 8, upper line wheel and the coaxial setting of driven wheel of differential 16.Such as Fig. 3
It is shown, rotating shaft 17 is provided between the top of two supporting legs, it is respectively fixed at two ends with drive bevel gear 161, initiative taper in rotating shaft
Gear is engaged with driven wheel of differential.Bearing 23 is provided with circular hole, rotating shaft is fixed in the inner ring of bearing.To realize to circular hole
Closing, is further fixed on closure 18 in circular hole.For ease of the rotation of drive shaft, retainer ring is fixedly arranged in the middle of in rotating shaft
171, handle 172 is fixed with retainer ring.
Connecting shaft is pressed downward and after lockable mechanism realizes locking to movable block, can be by the rotation reality of road wheel
Now to the movement of whole experimental bench.Swing handle, the rotation of drive shaft, and then cause that bracing wire is lifted upwards, just can now drive
Lock pin is moved to the side shifting away from movable block, after lock pin is removed from the locking hole on movable block, in back-moving spring
In the presence of move on road wheel.
Support platform 12 is provided with the top of support base, the first experiment porch 3 and the second experiment porch 5 are provided with supporting table.
As shown in figure 11, friction measurement unit is provided with the first experiment porch.
Friction measurement unit：
As shown in Figure 12 and Figure 13, friction measurement unit includes the first experiment track 31, mat 32, translation motor 33, the
One runner 34, the second runner 341, the first sliding shoe 35, Weight box 352, tensioning wheel 36, bridge 37 and connecting rope 38, such as Figure 14
Shown, the first experiment track 31 is multigroup at the top of the first experiment porch to be arranged on, and every group includes two tracks be arrangeding in parallel
Plate, is provided with mat 32 between two track plates, and the mat surface roughness in the experiment track of each group first is different.It is real first
Test in track and be provided with the first sliding shoe 35, the bottom of the first sliding shoe contacts with mat, as shown in figure 15, in the first sliding shoe
SDeflector 353 is respectively provided on two sides with, the major part of SDeflector is placed in the first sliding shoe and can do 360 with respect to the first sliding shoe
Degree is rotated, and SDeflector and first tests rail contact, and the setting of SDeflector can ensure that the first sliding shoe tests track first
Inside move along a straight line.A pair or so the otic placodes 351 of setting are provided with the top of the first sliding shoe, at the top of the first sliding shoe also
It is provided with multiple Weight boxes 352.That track is tested at each group first is respectively arranged on the left side and the right side a translation motor 33, such as Figure 16
It is shown, the first runner 34 is fixed with the output end of translation motor, as shown in figure 17, it is rotatablely equipped with the first experiment porch
Second runner 341, is provided with inverted U-shaped bridge 37 between first, second runner, is provided with the inside of bridge and is slidably connected with bridge
Tension pulley support 361, as shown in figure 18, tension pulley support is inverted U-shaped.Tensioning is rotatablely equipped with tension pulley support
Wheel 36, tensioning wheel and first, second runner on three summits of triangle, set between tension pulley support and bridge respectively
There is tensioning spring 371.Two otic placodes and two first runners are corresponded, and connecting rope is provided between corresponding otic placode and the first runner
38, one end of connecting rope is tied up on otic placode, and the other end of connecting rope is fixed on the outer wall of the first runner, and connecting rope and tensioning
Wheel and the second runner wall contacts.Connecting rope is straightened in the presence of tensioning spring.
Translation motor, the first runner, the second runner, tensioning wheel and connecting rope constitute translation mechanism, and two translation mechanisms
In translation motor alternation, be additionally provided with weight beam 39 in a connecting rope wherein.When right side translation mechanism works,
Translation motor in the translation mechanism of right side drives the first runner to rotate clockwise, and now the translation motor in the translation mechanism of left side is not
Action, the first runner is unresisted is rotated clockwise around translation motor output shaft.When left side translation mechanism works, left side translation machine
Translation motor in structure drives the first runner to rotate counterclockwise, now the translation motor in the translation mechanism of right side be failure to actuate, first
Runner is unresisted to be rotated counterclockwise around translation motor output shaft.That is, the first runner in the translation mechanism of left side can be in translation
Rotated counterclockwise under the drive of motor, but translation motor in the translation mechanism of left side, when not working, the first runner can be with non-resistance
Rotate clockwise.The first runner in the translation mechanism of right side can be rotated clockwise under the drive of translation motor, but right side
When translation motor in translation mechanism does not work, the first runner can be rotated counterclockwise with unresisted.Right side translation mechanism work
When the first sliding shoe can be pulled at the uniform velocity to move right, can now read the reading on weight beam, the reading is first
Frictional force between sliding shoe and mat.Computing formula f=μ N according to frictional force, can add counterweight in Weight box, increase
Normal pressure between big first sliding shoe and mat, it is relevant with normal pressure with the size for verifying frictional force.Different mats it is coarse
Degree is different, and then the friction factor μ of different mats is different, and then can draw the frictional force conclusion relevant with friction factor μ.
In the same first experiment track, keep counterweight quantity on the first sliding shoe constant, it is also possible that translation motor output is different
Rotating speed, again watch weight beam on reading, and then study frictional force whether have relation with the speed of object.Also can be only
First runner is set, the second runner and tensioning wheel is removed, one end of connecting rope is fixed on the outer wall of the first runner, connecting rope
The other end is tied up on the first sliding shoe.
When the experimental bench is not used, the first experiment porch can be reversed 180 degree.As shown in figure 19, support base with
Lifting mechanism is provided between first experiment porch.Lifting mechanism includes lifting frame 4, motion bar 42, fix bar 43, supporting plate 44, convex
Wheel 45, connecting rod 451, cam motor 46, worm gear 47, worm screw 471 and upset motor 472, lifting frame is U-shaped structure, real first
That tests platform is respectively arranged at two ends with rotating shaft 30, and axis of rotation is arranged on lifting frame.Reinforcement 41 is provided with lifting frame, is being lifted
The bottom for rising frame is fixed with hollow motion bar 42, and fix bar 43 is provided with the inner chamber of support base, and the top of fix bar is placed in
In the inner chamber of motion bar and both be slidably connected.Supporting plate 44 is fixed with the bottom of lifting frame, it is fixed in the inner chamber of support base
There is motor support frame 461, cam motor 46 is fixed with motor support frame, cam is fixed with the output end of cam motor
45, supporting plate journal stirrup 441 is fixed with the bottom of supporting plate, connecting rod 451 is provided between supporting plate journal stirrup and cam.Cam motor works
When, lifting frame moving up and down together with the first experiment porch can be driven.As shown in figure 20, it is fixed with a rotating shaft wherein
Worm gear 47, is fixed with upset motor 472 on lifting frame, and worm screw 471, worm and wheel are fixed with the output end of upset motor
Engagement, upset motor, worm and worm wheel constitute switching mechanism, and switching mechanism can drive the first experiment porch perpendicular when working
Straight rotation in surface, and switching mechanism often acts the first experiment porch upset 180 degree.The upper table of the first experiment porch faces down
Afterwards, friction measurement unit is just hidden in support base inner chamber.When needing to hide the upper surface of the first experiment porch, drive first
Cam motor is acted so that lifting frame is moved down, and after lifting frame is displaced downwardly to minimum point, drives upset motor action so that first
Experiment porch overturns 180 degree, finally drives lifting frame to reset.
The second experiment porch, the square hole that the second experiment porch is placed at the top of supporting table are provided with front side of the first experiment porch
In.The unit that tests the speed is provided with the second experiment porch.
Test the speed unit：
As shown in figure 21, the unit that tests the speed includes that the second experiment track 51, transmitting pedestal 52, transmitting spring 521, second are slided
Block 53, first sensor 541, second sensor 542, dial plate 56, vertical pivot 561 and pointer 562, the second experiment track include parallel
Two track plates for setting, are provided with the second sliding shoe 53 between two track plates, as shown in figure 22, are set in the both sides of the second sliding shoe
There is the SDeflector contacted with track plates, the second sliding shoe edge rectilinear movement on the second experiment track in the presence of SDeflector.
The transmitting pedestal 52 of U-shaped is provided with the left of the second experiment track, launches the opening end and the second experiment rail contact of pedestal,
Transmitting pedestal inner side is provided with expelling plate 522, is provided with transmitting spring 521 between expelling plate and transmitting pedestal, it is necessary to second is slided
When motion block is released, the second sliding shoe is contacted with expelling plate and compressed transmissions spring, then unclamp the second sliding shoe.It is reality
Now to the tachometric survey of the second sliding shoe, first sensor 541 and second sensor 542 are provided with the second experiment track, the
The distance between one sensor and second sensor are L, and L values are constant.Cushion pad 55 is provided with the end of the second experiment track,
To prevent the second sliding shoe from going out the second experiment track.Cushion pad can be the rubber parts full of gas, or sponge member.
Dial plate 56 is additionally provided with second experiment porch, time scale line is provided with dial plate, vertical pivot 561 is provided with the center of dial plate,
Pointer 562 is fixed with vertical pivot, the timing motor for driving vertical axis, timing motor and control are provided with the second experiment porch
Device signal is connected, and controller is connected with first, second sensor signal, and when the second sliding shoe is by first sensor, first passes
Sensor is acted to controller sending signal, controller control timing motor, and now vertical axis, start timing；The second sliding shoe
During by second sensor, second sensor is now erected to controller sending signal, controller control timing motor stopping action
Axle stops operating, and timing terminates.Now the time on dial plate shown in pointer be the second sliding shoe by first, second sensor
Time t, just can now measure the average speed V of the second sliding shoe.The decrement for launching spring is bigger, the second sliding shoe
Initial velocity is bigger, and the average speed value V for now measuring is bigger.Can also show that the deformation of spring is bigger herein, spring
Elastic force just it is smaller.
Skewback unit：
Be provided with skewback unit on the second experiment porch, skewback unit include skewback 6, the 3rd sliding shoe 61, directive wheel 62,
Range sensor 64, buffer board 65, buffer spring 651 and lifting cylinder 68, as shown in figure 23, skewback is the elongate configuration of U-shaped,
The 3rd sliding shoe 61 is provided with the inside of skewback, directive wheel 62 is rotatablely equipped with respectively in the both sides of the 3rd sliding shoe, in skewback
Inwall be provided with stopper slot, a part for directive wheel is placed in stopper slot, and the setting of stopper slot and directive wheel can prevent the
The disengaging of three sliding shoes and skewback.Counterweight groove 611 is provided with the top of the 3rd sliding shoe, for placing counterweight.As shown in figure 24,
The right-hand member of skewback is hinged 66 and is arranged in supporting table, and sensor stand 63 is provided with the right-hand member of skewback, is set in sensor stand
There is range sensor 64, buffer board 65 is additionally provided with the inside of skewback, buffering elastic is provided between buffer board and sensor stand
Spring 651.Be provided with marking line 67 in the side of skewback, the extended line of marking line by skewback pin joint, marking line answers color bright
It is aobvious.Be fixed with skewback journal stirrup 60 in the bottom of skewback, cylinder journal stirrup 681 be provided with the inner chamber of supporting table, cylinder journal stirrup with
Lifting cylinder 68 is provided between skewback journal stirrup, lifting cylinder can drive the swing of skewback when acting.In physical knowledge, it is placed in
The frictional force suffered by object on inclined-plane is that f=μm of gcos θ, θ are the angle of inclination on inclined-plane.Object gravity is along the component on inclined-plane
F1=mgsin θ, work as F1>During f, the object on inclined-plane starts to be moved down along inclined-plane, i.e. mgsin θ>μm gcos θ, tan θ>μ.It is right
For specific inclined-plane, μ is definite value, therefore θ values just can determine that.To realize the measurement to θ, and then μ is drawn, in the second experiment
Platform is provided with angle measuring unit.
Angle measuring unit：
As shown in figure 25, be rotatablely equipped with the second experiment porch sector bevel protractor 7, the jointed shaft of bevel protractor with it is oblique
The jointed shaft of block is collinearly set.Chi ring 71 is provided with bevel protractor, bevel protractor is hinged by chi ring with the second experiment porch.At angle
The drive block 72 of sector is fixed with degree chi, bevel protractor constitutes a semicircle with drive block, in the circular arc outer wall of drive block
Tooth is provided with, telescope motor 74 is provided with the second experiment porch, gear 73, gear and drive are provided with the output end of telescope motor
Motion block engagement coordinates.By telescope motor drive drive block rotation, and then driving angle chi rotation.When need measure skewback
Angle of inclination when, as shown in figure 25, drive telescope motor act cause bevel protractor zero graduation line it is concordant with horizontal plane.Drive
Lifting cylinder is acted so that around spot wobble is hinged, with the continuous swing of skewback, the 3rd sliding shoe divides skewback along bevel direction
Power is increasingly greater than the frictional force of the 3rd sliding shoe, when the 3rd sliding shoe is equal to the friction of the 3rd sliding shoe along the component of bevel direction
During power, the 3rd slides BOB(beginning of block) movement.Now range sensor perceives the movement of the 3rd sliding shoe, range sensor and control
Device signal is connected, and range sensor is connected with the solenoid signal of lifting cylinder again to controller sending signal, controller, is controlled
Device is to lifting cylinder magnetic valve sending signal so that lifting cylinder stopping is acted, as shown in figure 27, now skewback and horizontal plane it
Between angle angle value just can be measured by bevel protractor, and marking line indicate angle value.It is suitable to ensure range sensor
Detection of the realization of profit to distance between the 3rd sliding shoe and range sensor, is provided with sensor of just adjusting the distance on buffer board
Circular hole.
When the experimental bench is not used, it is also possible to which the second experiment porch is reversed into 180 degree.Second experiment porch and supporting table
Between also be provided with lifting mechanism, it is lifting mechanism structure between the lifting mechanism and the first experiment porch and supporting table, worked
Journey is identical.
Claims (10)
1. the experimental bench of physics teaching and Students ' Learning is integrated, it includes support base and supporting table, the supporting table is set
On the top of support base, supporting leg is provided with the bottom of the support base, it is characterized in that, the first experiment is provided with the supporting table
Platform and the second experiment porch, first, second experiment porch are rotatably installed on a lifting frame respectively, are provided with supporting table
The lifting mechanism for driving lifting frame to move up and down；First, second experiment porch of driving is provided with lifting frame to turn in vertical plane
Dynamic switching mechanism；
Friction measurement unit is provided with first experiment porch, the friction measurement unit includes being arranged on first in fact
The degree of roughness of some first experiments tracks tested on platform, the mat that is arranged on the first experiment track and each mat not phase
The first sliding shoe that is same, being arranged on mat along rectilinear movement and the first sliding shoe of pulling make the translation machine of uniform rectilinear's movement
Structure, the translation mechanism mainly includes translation motor, is arranged on the first runner of translation motor output end, is arranged on the first runner
With the weight beam between the first sliding shoe, be connected the first sliding shoe and weight beam and connecting spring dynamometer and
The connecting rope of one runner；
It is provided with the unit that tests the speed on second experiment porch, the unit that tests the speed includes being arranged on the on the second experiment porch
Two test tracks, the second sliding shoe being arranged on along line activities on the second experiment track, are arranged on the second experiment track left side
Transmitting pedestal, be movably arranged on transmitting pedestal on the inside of expelling plate, be arranged on expelling plate and transmitting pedestal between transmitting bullet
Spring, the cushion pad being arranged on the right side of the second experiment track, left and right are arranged on first sensor and second on the second experiment track
Sensor, the dial plate being arranged on the second experiment porch, the vertical pivot for being arranged on dial plate center, the pointer being arranged on vertical pivot, drive
The timing motor of dynamic vertical axis, the timing motor, first sensor and second sensor are connected with controller signals；
Skewback unit is additionally provided with second experiment porch, the skewback unit includes being hingedly mounted on the second experiment porch
On skewback, be placed on skewback the 3rd sliding shoe, be arranged between the second experiment porch and skewback bottom lifting cylinder,
The sensor stand that is arranged on skewback, the range sensor being arranged on inside sensor stand, be arranged on sensor stand with
Buffer board between 3rd sliding shoe, the buffer spring being arranged between buffer board and sensor stand, on the buffer board
It is provided with the circular hole of sensor of just adjusting the distance.
2. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, in the branch
Walking unit is provided between leg, the walking unit mainly includes the connecting shaft, the company of being fixed on that are arranged between front and rear two supporting leg
The two ends of spindle and the movable block being connected, the wheel carrier for being rotatably installed in connecting shaft two ends are slided up and down with supporting leg, is rotatably installed in
Road wheel on wheel carrier, the back-moving spring being arranged between movable block and supporting leg, the locking being arranged between supporting leg and movable block
Mechanism and the pulling mechanism of the work of driving lockable mechanism or failure.
3. the experimental bench for integrating physics teaching and Students ' Learning according to claim 2, it is characterized in that, the locking
Mechanism includes the lock device being arranged on supporting leg, the slide plate being slidably mounted in lock device inner chamber, the locking being fixed on slide plate
The locking spring sell, being arranged between lock device and slide plate, the latch being fixed on movable block, in the presence of locking spring
The effect end of lock pin is extend into the locking hole on latch, and baffle plate is fixed with the lock pin being placed in outside lock device.
4. the experimental bench for integrating physics teaching and Students ' Learning according to claim 2, it is characterized in that, the pulling
Mechanism includes the rotating shaft being rotatably installed between front and rear supporting leg, the handle being fixed in rotating shaft, is rotatably installed in supporting leg bottom
First runner, the drive bevel gear for being fixed on rotating shaft two ends are engaged with drive bevel gear and are rotatably installed in driven on supporting leg
Bevel gear engages the second runner for coordinating and the bracing wire being arranged between baffle plate and the second runner outer wall with driven wheel of differential,
And the wall contacts of bracing wire and the second runner.
5. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, the lifting
Mechanism includes the cam motor being fixed in supporting table inner chamber, the cam being fixed on cam motor output shaft, is arranged on cam
Connecting rod between peak and lifting frame, hollow motion bar is fixed with the bottom of lifting frame, is set in the inner chamber of supporting table
There is the fix bar being slidably connected with motion bar.
6. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, the upset
Mechanism includes that the upset motor being fixed on lifting frame, the worm screw being fixed on upset motor output shaft and worm engaging coordinate
And it is fixed on the worm gear on the first experiment porch or the second experiment porch.
7. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, the translation
Mechanism also include be rotatably installed on the first experiment porch the second runner, be arranged between the first runner and the second runner across
Beam, the tension pulley support being arranged on the inside of bridge, the tensioning spring being arranged between tension pulley support and bridge, it is rotatably installed in
Tensioning wheel on tension pulley support, the contacts-side-down of connecting rope and tensioning wheel and with the upper contact of the second runner.
8. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, described
Two experiment porch are provided with angle measuring unit, and the angle measuring unit includes the fan being hingedly mounted on the second experiment porch
What the fan-shaped drive block and drive block meshed gears, drive gear that the bevel protractor of shape is fixedly connected with bevel protractor were rotated stretches
Contracting motor, the jointed shaft of bevel protractor setting coaxial with the jointed shaft of skewback, marking line, marking line are provided with the side of skewback
Extended line by skewback pin joint.
9. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, the wheel carrier
On road wheel be three and respectively positioned at triangle three summits on.
10. the experimental bench for integrating physics teaching and Students ' Learning according to claim 1, it is characterized in that, first,
The side of the second sliding shoe is equipped with SDeflector, and the SDeflector is contacted with the inwall of first, second experiment track.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807401A (en) * | 2017-10-25 | 2018-03-16 | 同方威视技术股份有限公司 | Mounting platform and rays safety detection apparatus |
| CN109036018A (en) * | 2018-09-12 | 2018-12-18 | 郑云天 | A kind of physical mechanics apparatus for demonstrating |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363334Y (en) * | 1999-02-08 | 2000-02-09 | 管祖美 | Speed measurer |
| CN101963782A (en) * | 2009-07-23 | 2011-02-02 | 精工电子有限公司 | Chronograph timepiece |
| CN204926621U (en) * | 2015-08-08 | 2015-12-30 | 傅小蕥 | Even presentation device that tests speed that changes speed of object |
| CN205050440U (en) * | 2015-10-27 | 2016-02-24 | 刘烜嘉 | Different inclinations dolly experimental apparatus that tests speed |
| CN205194156U (en) * | 2015-11-24 | 2016-04-27 | 亓强 | Student is with friction force measuring device |
| CN205354479U (en) * | 2016-01-07 | 2016-06-29 | 周陟泓 | Experimental apparatus is used in teaching |
| CN205541571U (en) * | 2016-01-28 | 2016-08-31 | 任新年 | Intelligence frictional force demonstration ware |
| CN205943225U (en) * | 2016-06-15 | 2017-02-08 | 毛竞尧 | Friction experiment device |
-
2017
- 2017-04-24 CN CN201710272876.5A patent/CN106898202B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363334Y (en) * | 1999-02-08 | 2000-02-09 | 管祖美 | Speed measurer |
| CN101963782A (en) * | 2009-07-23 | 2011-02-02 | 精工电子有限公司 | Chronograph timepiece |
| CN204926621U (en) * | 2015-08-08 | 2015-12-30 | 傅小蕥 | Even presentation device that tests speed that changes speed of object |
| CN205050440U (en) * | 2015-10-27 | 2016-02-24 | 刘烜嘉 | Different inclinations dolly experimental apparatus that tests speed |
| CN205194156U (en) * | 2015-11-24 | 2016-04-27 | 亓强 | Student is with friction force measuring device |
| CN205354479U (en) * | 2016-01-07 | 2016-06-29 | 周陟泓 | Experimental apparatus is used in teaching |
| CN205541571U (en) * | 2016-01-28 | 2016-08-31 | 任新年 | Intelligence frictional force demonstration ware |
| CN205943225U (en) * | 2016-06-15 | 2017-02-08 | 毛竞尧 | Friction experiment device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807401A (en) * | 2017-10-25 | 2018-03-16 | 同方威视技术股份有限公司 | Mounting platform and rays safety detection apparatus |
| CN107807401B (en) * | 2017-10-25 | 2024-03-29 | 同方威视技术股份有限公司 | Mounting platform and security inspection equipment |
| CN109036018A (en) * | 2018-09-12 | 2018-12-18 | 郑云天 | A kind of physical mechanics apparatus for demonstrating |
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| Publication number | Publication date |
|---|---|
| CN106898202B (en) | 2019-07-05 |
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Effective date of registration: 20190614 Address after: 325000 Wenzhou Economic and Technological Development Zone, Zhejiang Province, 120 Kuocangdong Road Applicant after: WENZHOU XIANDA EDUCATION INSTRUMENT LIMITED COMPANY Address before: 276000 Jinwan, the World Hui, at the junction of Beijing Road and Binhe West Road, Lanshan District, Linyi City, Shandong Province Applicant before: Wang Guofeng |
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