CN206411959U - A kind of mechanics comprehensive experiment device - Google Patents
A kind of mechanics comprehensive experiment device Download PDFInfo
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- CN206411959U CN206411959U CN201621253531.2U CN201621253531U CN206411959U CN 206411959 U CN206411959 U CN 206411959U CN 201621253531 U CN201621253531 U CN 201621253531U CN 206411959 U CN206411959 U CN 206411959U
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- axis body
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- toothed belt
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Abstract
The utility model discloses a kind of mechanics comprehensive experiment device, including, housing, top plate, experiment support plate, experiment support plate two ends are hinged with the first supporting plate and second supporting plate one end respectively, first supporting plate and the second supporting plate other end are separately installed with the 6th axis body and the second axle body, and the 6th axis body and the second axle body can drive the first supporting plate and the second supporting plate to the upward top power of experiment support plate pressure；Experiment support plate is also fixed with tape one end, and L3 value can be read by tape.The utility model function is more comprehensive, can carry out a variety of Experiments of Machanics；The utility model can read tape size in real time, and core numerical value is provided for follow-up Mechanics Calculation so that student deep enough can be tested, calculated, and improve teaching efficiency.The utility model can realize demonstration, parameter acquisition, calculating of a variety of Mechanics Phenomenons etc., by actual operation, test, calculate, grasp of the reinforcing student to related mechanical knowledge.
Description
Technical field
The utility model is related to a kind of experimental provision, more particularly to a kind of device for Experiments of Machanics.
Background technology
In Middle School Physics, mechanics is highly important study content, wherein the theory of frictional force, put into practice, test and be
Very important part in whole Middle School Physics.In the study on frictional force, self-locking is an important phenomenon again, is ground
Self-locking is studied carefully for understanding that frictional force, gravity scheduling theory are with sizable help.
At present, for the teaching of locking phenomenon, teacher is entered by combining the natural phenomena and existence general knowledge of reality mostly
Row explanation, still, because the abstract of student is natively not perfect enough with the ability that associates, this results in student for locking phenomenon
All the time there is larger difficulty in understanding.
In view of the above-mentioned problems, having begun to that using correlation self-locking can be simulated at present in field research and unlocking phenomenon
Experimental provision, by the actual presentation of these experimental provisions, simulation, can deepen understanding and the impression of student, lifting teaching effect
Really.
At present, the experimental technique with this function mainly has：
Patent No. CN201410346474.1, entitled friction self-locking theory teaching experimental provision and its experimental method.Its
Mainly by the way that lucite sliding block is placed on lucite swash plate, then lucite swash plate one end is raised, made organic
Glass swash plate formation inclined-plane, after the gradient on inclined-plane reaches the self-locking angle of sliding block, sliding block will be slided.Can during this
Self-locking and unblock phenomenon are intuitively demonstrated, but its teaching efficiency is very limited, student can not pass through the experimental provision and calculate related
Frictional force, sliding block is to slide plate pressure, partical gravity etc..Due to without steps such as actual calculating, theory analysises, causing student
Although understanding of locking phenomenon, it is related to the contents such as calculating, analysis or one difficult point.
Patent No. CN200710039777.9, a kind of entitled Chinese utility model patent of frictional force measuring and experiment device
In, also disclose that the technology similar with above-mentioned experimental provision.
Patent No. CN201210413462.7, for angle of granular materials and the inclined-plane instrument dress of friction coefficient measurement
In the Chinese utility model patent put, disclose can gather the self-locking of bulk solid material unblock when related data, with facilitate into
Row frictional force is calculated.But, this structure is only suitable for single self-locking research, and precision is not high.
Summary, it is applicant's understanding that lacking a kind of dependency number that object frictional force is calculated when can gather unblock at present
According to, so i.e. can allow student intuitively understand self-locking and unblock phenomenon, again can by gathered data carry out correlation computations, will manage
By referring to again in practice, teaching efficiency is improved.In addition, based on the consideration for saving equipment purchase cost, therefore it is applicant's understanding that
Need a kind of to carry out the experimental provision of a variety of Experiments of Machanics.
Utility model content
In view of the drawbacks described above of prior art, it is comprehensive that technical problem to be solved in the utility model is to provide a kind of mechanics
Experimental provision is closed, for calculating the data of sliding block frictional force and a variety of mechanics realities can also be carried out when it can gather sliding block unblock
Test.
The utility model provides a kind of experimental method based on above-mentioned experimental provision.
To achieve the above object, the utility model provides a kind of mechanics comprehensive experiment device, including, housing, top plate, reality
Support plate is tested, described experiment support plate two ends are respectively equipped with support plate articulated slab and support plate hinged block, and described support plate articulated slab passes through
7th axis body and the supporting plate hinged block of the second supporting plate assemble and form articulated structure；
The second described supporting plate is away from supporting plate contiguous block is provided with supporting plate hinged block one end, the 6th axis body is passed through
Through hole on supporting plate contiguous block is assembled with supporting plate contiguous block, the 6th described axis body two ends be respectively fixed with the 6th gear and
6th pinion；
The 6th described gear upper and lower ends are engaged with the 4th synchronous toothed belt and the 3rd rack respectively, and the 6th described tooth
Wheel can be with the 4th synchronous toothed belt and the 3rd rack engagement rotation；
The 6th described pinion two ends are engaged with fourth officer synchronous toothed belt and the 3rd secondary rack respectively, and the described the 6th
Pinion can be with fourth officer synchronous toothed belt and the 3rd secondary rack engagement rotation；
Match somebody with somebody respectively with the 5th belt wheel and the 8th belt wheel and merge to form V belt translation structure in the 4th described synchronous toothed belt two ends；
The 5th described belt wheel is fixed on the 5th axis body one end, and the 5th described axis body other end is fixed with the 5th subband
Wheel；
The 8th described belt wheel is fixed on the 8th axis body one end, and the 8th described axis body other end is fixed with the 8th subband
Wheel；
The 5th described secondary pulley and the 8th secondary pulley are matched somebody with somebody with the 4th synchronous toothed belt two ends merge to form V belt translation knot respectively
Structure；
The 5th described axis body, which is additionally provided with the 5th belt wheel one end on splined shaft portion, described splined shaft portion, to be covered
Have and driven pulley is cased with switching cylinder, described switching cylinder, described driven pulley is coordinated by power belt and driving pulley
Form V belt translation structure；
Described driving pulley is fixed on the 4th axis body, and the 4th belt wheel and fourth officer are additionally provided with the 4th described axis body
Belt wheel, driving gear；
The 4th described belt wheel and the 4th secondary pulley respectively with the first synchronous toothed belt and the first secondary synchronous toothed belt one end fits,
The first described synchronous toothed belt and the first secondary synchronous toothed belt other end are matched somebody with somebody with the first belt wheel and the first secondary pulley respectively merges formation
V belt translation structure；
Described the first belt wheel and the first secondary pulley is installed on the first axle body；
Driving toothed portion on the outside of the first described synchronous toothed belt and the first secondary synchronous toothed belt with second gear and the
Two pinions are engaged, and described second gear and the second pinion are also engaged with the second rack and the second secondary rack respectively, and institute
The second gear stated and the second pinion respectively with the first synchronous toothed belt and the first secondary synchronous toothed belt, the second rack and the second secondary tooth
Bar B202 engagement rotations；
Described second gear and the second pinion is installed on the second axle body, and described the second axle body passes through first
The first support contiguous block on fagging is rotatably assembled with the first supporting plate；
The first described supporting plate is assembled simultaneously away from first support contiguous block one end by the 9th axis body and support plate hinged block
Form hinge arrangement；
Mounting groove, both sides are additionally provided with described experiment support plate and is provided with tape mounting blocks and tracheae contiguous block, described peace
Slide plate is installed in tankage；
Described tape mounting blocks are connected with tape one end, and described tracheae contiguous block is connected with tracheae one end；
Scale is carved with described tape and the other end is wrapped in foot wheel；
Described tracheae is used for air guide, and its other end is connected with air pump exhaust outlet, and described tracheae interlude is wrapped in
On pipe winding wheel；
Described is each attached on three-axis body around foot wheel and pipe winding wheel, and the 3rd tooth is further fixed on described three-axis body
Wheel and the 3rd pinion, the 3rd described gear and the 3rd pinion respectively with the first synchronous toothed belt, the first secondary synchronous toothed belt
Drive toothed portion engaged transmission；
Fixation is rotatably assembled in described the first axle body, the 4th axis body, the 5th axis body two ends with housing both sides respectively.
As further improvement of the utility model, protruding end and retraction end are provided with slide plate both sides, described is convex
Go out between end and retraction end and form short slot；
Neck, described neck and protruding end snap-fit and neck are set on mounting groove and slide plate both sides correspondence position
The flange portion of top coordinates with short slot.
As further improvement of the utility model, in addition to changeover module, described changeover module, including it is arranged on
The splined shaft portion of five axis body one end, described spline shaft partial cross-section is spline；
It is cased with switching in cylinder, described switching cylinder on described splined shaft provided with the spline that with splined shaft portion can coordinate
Hole, and described switching cylinder is also divided into：Overhanging section, spacing collar, outer spline section, cut-out section；
Described overhanging section is through housing and passes shell one end and is connected with limited cap, described outer spline section and from
The belt wheel splined hole assembling of movable belt pulley.
As further improvement of the utility model, described cut-out section is the bearing being enclosed on switching cylinder, the bearing
Outer ring and driven pulley belt wheel splined hole coordinate.
As further improvement of the utility model, indicator is fixed with driven pulley, while being set on housing
Groove is indicated, described indicator stretches into instruction groove but do not pass through instruction groove；Mark is provided with limited cap.
As further improvement of the utility model, described instruction groove is common by mounting ring lateral surface and case inside face
Constitute, and described mounting ring is connected by contiguous block with housing.
As further improvement of the utility model, stretched out in the 4th axis body on the part of housing and be fixed with a driving tooth
Take turns, and the extension passes through and is then passed through case after driving gear and passes case one end to be connected with coarse adjustment knob；
Described driving gear is engaged with idler gear and described idler gear is engaged with accurate adjustment gear, described accurate adjustment
Gear is arranged on accurate adjustment axle, and described accurate adjustment axle passes case, and is passed case end and be connected with accurate adjustment knob；
The 4th described axis body is fixed with coarse adjustment knob on the end of driving gear one end；
The diameter of described accurate adjustment gear is less than driving gear diameter.
It is the first described synchronous toothed belt and the first secondary synchronous toothed belt, the 4th same as further improvement of the utility model
Walk cingulum and fourth officer synchronous toothed belt structure is identical, its inner side is timing belt part, outside that can be with synchronous pulley engaged transmission
For the driving toothed portion that can be engaged with gear.
As further improvement of the utility model, the second described rack and the second secondary rack, the 3rd rack and the 3rd
Secondary rack and pinion contact surface is latch part, described latch part and meshed transmission gear.
As further improvement of the utility model, described the second described rack and the second secondary rack, the 3rd rack
It is each attached to the 3rd secondary rack on the inside of top plate.
As further improvement of the utility model, described slide plate thickness is no more than the 2/3 of installation groove depth.
As further improvement of the utility model, buffer board, described buffer board are provided with mounting groove bottom side
Height should be at least over the 1/4 of slide plate thickness, and is not more than installation groove depth.
As further improvement of the utility model, described buffer board is made of arc elastic plate.
As further improvement of the utility model, gas supply assembly is provided between air pump and external tracheae；
Described gas supply assembly, including, connection tracheae, three-axis body hollow section, described connection tracheae one end and air pump
Exhaust outlet is connected, and the other end is rotatably connected with three-axis body hollow section end, and described pipe winding wheel is fixed in three-axis body
In dead band, and tracheae one end is connected through pipe winding wheel and three-axis body hollow section outer wall with three-axis body hollow section hollow space；
Described tracheae center section is wrapped on pipe winding wheel, and the other end is connected with the air flue in tracheae contiguous block, described air flue
Penetrate experiment support plate edge and connected with external tracheae.
As further improvement of the utility model, described slider bottom is provided with accommodating chamber, and from slider top to appearance
Receive and air guide through hole is provided between chamber, described air guide through hole coordinates air guide with external tracheae.
As further improvement of the utility model, the loading side plate upper surface of experiment support plate is provided with scale, simultaneously
Instruction line is provided with slide plate.
As further improvement of the utility model, tray is provided with side plate is reprinted, described external tracheae is by holding in the palm
Block is lifted.
As further improvement of the utility model, hanging plate is provided with first supporting plate one end in slide plate, it is described
Hanging plate on be provided with hanging hole.
As further improvement of the utility model, pressure gauge can be provided with tracheae.
As further improvement of the utility model, the first supporting plate and the second supporting plate have necessarily with experiment support plate
Angle (not parallel with experiment support plate), this can prevent the first supporting plate and the second supporting plate to be in lock to the angle for testing support plate
Dead angle degree, so that experiment support plate can not be driven.
A kind of experimental method based on above-mentioned experimental provision, comprises the following steps：
1st, test self-locking and unblock angle
S11, sliding block is positioned on slide plate, and makes the end face of sliding block concordant with instruction line；
S12, will switch cylinder by limited cap and be pushed into, and driven pulley is coordinated with cut-out section to cut off driven pulley to the 5th
The driving force of axis body；
S13, rotating coarse adjustment knob or accurate adjustment knob makes the first supporting plate be risen support plate one end is tested upwards, and slide plate is inclined
Tiltedly to form inclined-plane；
S14, continues to drive the 4th axis body to rotate, and makes the increase of slide plate gradient, until sliding block produces slip on slide plate；
S15, reads the scale of tape 900 when sliding block is slided, this scale is exactly L3 length；
S16, because L1, L2 size have been determined, can be measured in advance, along with L3 length values can just be calculated
L1 and L2 the first angle a；
S17, the second angle b angle is instead released by the first angle a, and goes out first by known sliding block Mass Calculation
Partical gravity G1, the second partical gravity G2；
S18, frictional force F when sliding block is slided is calculated by the coefficient of friction of known slide plate, and this frictional force F is exactly
Kinetic force of friction between sliding block and slide plate, that is, maximum static friction force.
2nd, buoyant gas is tested
S21, by repeat S11-S13 the step of, by the first angle a be adjusted to not exceed sliding block slide when value；
S22, external tracheae and air guide through hole is connected, air pump is supplied to tracheae, until sliding block produces slip, write down now
Manometric atmospheric pressure value, and atmospheric pressure value is calculated by the diameter of atmospheric pressure value and external tracheae；
S23, gas in accommodating chamber is calculated in the second partical gravity G2 negative side by atmospheric pressure value and accommodating chamber sectional area
Upward budget buoyancy；
S24, the step of repeating S15-S18 calculates the stiction before being inflated to sliding block, and rub by dynamic in S18
Wipe power and subtract stiction acquisition difference frictional force, sliding block in S22 is calculated by difference frictional force divided by slide plate coefficient of friction
To the floating pressure of slide plate during slip；
S25, subtracts floating pressure by the second lavish gift component in S17 and obtains actual buoyancy；
S26, contrasts actual buoyancy and budget buoyancy, and the result of calculation of student is investigated in the case where considering error.
3rd, the elastic coefficient is tested
S31, spring one end hangs tight with hanging hole, and the other end hangs tight with sliding block one side；Read the initial length of now spring；
S32, will adjust slide plate gradient, until sliding block is slided again, measure the length of now spring, and calculate spring
Elongation；
S33, the first the partical gravity G1, the first partical gravity G1 calculated now subtracts the kinetic force of friction of sliding block and slide plate
F is exactly the elastic force of spring；
S34, coefficient of elasticity can be just calculated by the elastic force and elongation of spring.
4th, the kinetic force of friction of direct test slider and slide plate
S41, switching cylinder is set back, outer spline section is coordinated with belt wheel splined hole, the 4th axis body is then driven, until
Experiment support plate rises to the height of needs；
S42, sliding block is placed on slide plate, is then hooked, is then pulled with tensiometer with the hook and sliding block of tensiometer
Sliding block is slided on slide plate, reads the reading on now tensiometer, this reading is exactly the actual measurement kinetic force of friction of sliding block and slide plate.
The beneficial effects of the utility model are：
1st, the utility model function is more comprehensive, can carry out a variety of Experiments of Machanics；
2nd, the utility model can read tape size in real time, and core numerical value is provided for follow-up Mechanics Calculation so that learn
It is raw deep enough to be tested, calculated, so as to improve teaching efficiency.
3rd, the utility model can realize the replacing of slide plate, thus allow for the Experiments of Machanics under a variety of coefficient of frictions,
Scope of experiment has been widened significantly.
4th, the utility model can realize experiment support plate horizontal lifting, and comfortable experiment height is provided for the student of different heights
Degree.
5th, experimental method of the present utility model can realize demonstration, parameter acquisition, calculating of a variety of Mechanics Phenomenons etc., pass through
Operation, test, the calculating of reality, strengthen grasp of the student to related mechanical knowledge significantly.
Brief description of the drawings
Fig. 1 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 2 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 3 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 4 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 5 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 6 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 7 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 8 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Fig. 9 is a kind of structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Figure 10 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 11 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 12 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 13 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 14 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 15 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 16 is a kind of use state figure of mechanics comprehensive experiment device embodiment of the utility model.
Figure 17 is a kind of partial structural diagram of mechanics comprehensive experiment device embodiment of the utility model.
Figure 18 is a kind of partial structural diagram of mechanics comprehensive experiment device embodiment of the utility model.
Figure 19 is a kind of partial structural diagram of mechanics comprehensive experiment device embodiment of the utility model.
Figure 20 is a kind of changeover module part explosive view of mechanics comprehensive experiment device embodiment of the utility model.
Figure 21 is a kind of changeover module part explosive view of mechanics comprehensive experiment device embodiment of the utility model.
Figure 22 is a kind of gas supply assembly structural representation of mechanics comprehensive experiment device embodiment of the utility model.
Figure 23 is a kind of sliding block upward view of mechanics comprehensive experiment device embodiment of the utility model.
A kind of parameter measurement schematic diagram of mechanics comprehensive experiment device embodiment of Figure 24 the utility model.
A kind of Mechanics Calculation schematic diagram of mechanics comprehensive experiment device embodiment of Figure 25 the utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples：
Referring to Fig. 1 to Figure 19, a kind of mechanics comprehensive experiment device, including, housing 100, top plate 101, experiment support plate 200,
The described two ends of experiment support plate 200 are respectively equipped with support plate articulated slab 201 and support plate hinged block, and described support plate articulated slab 201 leads to
The supporting plate hinged block 401 for crossing the 7th axis body Z701 and the second supporting plate 400 assembles and forms articulated structure；
The second described supporting plate 400 is provided with supporting plate contiguous block 402 on away from the one end of supporting plate hinged block 401, the
Six axis body Z601 are assembled through the through hole on supporting plate contiguous block 402 with supporting plate contiguous block 402, the 6th described axis body Z601
Two ends are respectively fixed with the 6th gear C 601 and the 6th pinion C602；
The described upper and lower ends of the 6th gear C 601 are engaged with the 4th synchronous toothed belt B401 and the 3rd rack B301 respectively,
And the 6th described gear C 601 can be with the 4th synchronous toothed belt B401 and the 3rd rack B301 engagement rotations；
Nibbled respectively with the pairs of fourth officer synchronous toothed belt B402 and the 3rd rack B302 at the 6th described pinion C602 two ends
Close, and the 6th described pinion C602 can be with the secondary rack B302 engagement rotations of fourth officer synchronous toothed belt B402 and the 3rd；
Match somebody with somebody respectively with the 5th belt wheel C501 and the 8th belt wheel C801 and merge formation in the 4th described synchronous toothed belt B401 two ends
V belt translation structure；
The 5th described belt wheel C501 is fixed on the 5th axis body Z501 one end, and the 5th described axis body other end is fixed with
Five secondary pulley C502；
The 8th described belt wheel C801 is fixed on the 8th axis body Z801 one end, and the 8th described axis body Z801 other ends are fixed
There is the 8th secondary pulley C802；
The 5th described secondary pulley C502 and the 8th secondary pulley C802 match somebody with somebody with the 4th synchronous toothed belt B401 two ends merge respectively
Form V belt translation structure；
The 5th described axis body Z501 is additionally provided with splined shaft portion Z5011 on the 5th belt wheel C501 one end, described
It is cased with being cased with driven pulley A302 on switching cylinder A400, described switching cylinder A400 on splined shaft portion Z5011, described is driven
Belt wheel A302 cooperatively forms V belt translation structure by power belt A501 and driving pulley A303；
Described driving pulley A303 is fixed on the 4th axis body Z401, and the 4th is additionally provided with the 4th described axis body Z401
Belt wheel C401 and the 4th secondary pulley C402, driving gear A203；
The 4th described belt wheel C401 and the 4th secondary pulley C402 are secondary synchronous with the first synchronous toothed belt B101 and first respectively
Cingulum B102 one end fits, the pair synchronous toothed belt B102 of the first described synchronous toothed belt B101 and first other ends are respectively with first
Belt wheel C101 and the first secondary pulley C102 form V belt translation structure with merging；
Described the first belt wheel C101 and the first secondary pulley C102 is installed on the first axle body Z101；
Driving toothed portion B02 on the pairs of the first described synchronous toothed belt B101 and first synchronous toothed belt B102 outsides with
Second gear C201 and the second pinion C202 engagements, described second gear C201 and the second pinion C202 are also respectively with the
The secondary rack B202 engagements of two rack B201 and second, and described second gear C201 and the second pinion C202 are respectively with the
The secondary synchronous toothed belt B102 of one synchronous toothed belt B101 and first, the secondary rack B202 engagement rotations of the second rack B201 and second；
Described second gear C201 and the second pinion C202 is installed on the second axle body Z201, the second described axle
Body Z201 is rotatably assembled through the supporting plate 300 of the first support contiguous block 301 and first in the first supporting plate 300；
The first described supporting plate 300 is cut with scissors away from first support one end of contiguous block 301 by the 9th axis body Z901 and support plate
Connect and packaged match somebody with somebody and form hinge arrangement；
Mounting groove 203, both sides are additionally provided with described experiment support plate 200 and is provided with tape mounting blocks 206 and tracheae contiguous block
207；
The sliding block being placed with slide plate 600, described slide plate 600 for experiment is installed in described mounting groove 203
500；
Described tape mounting blocks 206 are connected with the one end of tape 900, described tracheae contiguous block 207 and tracheae
207 one end are connected；
Scale is carved with described tape 900 and the other end is wrapped on foot wheel D201；
Described tracheae 800 is used for air guide, and its other end is connected with air pump D101 exhaust outlets, in described tracheae 800
Between section be wrapped on pipe winding wheel D103；
Described is each attached on three-axis body Z301 around foot wheel D201 and pipe winding wheel D103, described three-axis body Z301
On be further fixed on the 3rd gear C 301 and the 3rd pinion C302, described C302 points of the 3rd gear C 301 and the 3rd pinion
Not with the first synchronous toothed belt B101, the first secondary synchronous toothed belt B102 driving toothed portion B02 engaged transmissions；
Described the first axle body Z101, the 4th axis body Z401, the 5th axis body Z501 two ends respectively can with the both sides of housing 100
Rolling assembling is fixed.
When rotating the 4th axis body Z401, the 4th axis body Z401 can pass through the 4th belt wheel C401 and the 4th secondary pulley C402 bands
The dynamic secondary synchronous toothed belt B102 of first synchronous toothed belt B101 and first are rotated, and the first described synchronous toothed belt B101 and first is secondary synchronous
Cingulum B102 can drive the first axle body Z101 and three-axis body Z301 to rotate again；
The pairs of first synchronous toothed belt B101 and first synchronous toothed belt B102 can also drive the second gear C201 that engages and
Second pinion C202 is rotated, when C201 and the second pinion C202 is rotated, due to the secondary racks of the second rack B201 and second
B202 is fixed, therefore the second axle body Z201 can be toward the secondary synchronous toothed belt B102 rotation directions of the first synchronous toothed belt B101 and first
It is mobile, and during the second axle body Z201 movements, the first supporting plate 300 will be driven to test support plate 200 by the 9th axis body Z901
The upward jack-up in one end；
When the secondary synchronous toothed belt B102 of first synchronous toothed belt B101 and first are rotated, it can also pass through the He of the 3rd gear C 301
3rd pinion C302 drives three-axis body Z301 synchronous axial systems, and this can reach tracheae 800 and tape 900 with experiment support plate
200 lifting and it is synchronous loosen or wraparound, prevent tracheae 800 and tape 900 to be torn or wind；
Meanwhile, the 4th described axis body Z401 can also drive the 5th axis body Z501 to rotate by power belt A501, and the 5th
Axis body Z501 drives the 4th synchronous toothed belt B401 and fourth officer synchronous toothed belt C402 to rotate, described the 4th synchronous toothed belt B401 and
Fourth officer synchronous toothed belt C402 drives the 6th gear C 601 and the 6th pinion C602 to rotate again, because the 3rd rack B301 is fixed
It is motionless, therefore the 6th gear C 601 and the 6th pinion C602 will drive the 6th axis body in the 4th synchronous toothed belt B401 and the 4th
Moved in secondary synchronous toothed belt C402 rotation directions, and during the 6th axis body Z601 movements the second supporting plate 400 will be promoted to make second
Supporting plate 400 will test the other end jack-up of support plate 200 by the 7th axis body Z701.
, further, can be in slide plate in order to assemble more firm between slide plate 600 and mounting groove 203 referring to Figure 13
Protruding end 611 and retraction end 612 are set on 600 both sides, short slot 611 is formed between described protruding end 611 and retraction end 612；
Meanwhile, neck 211 is set on mounting groove 203 and slide plate both sides correspondence position, described neck 211 can with it is convex
The flange portion 212 for going out 611 snap-fits of end and the top of neck 211 just coordinates with short slot 611.This structure can be in experiment
Anti- limited slip plate comes off or poured out when support plate 600 is tilted.
Further, referring to Figure 17-Figure 21, shown structure is the structure of changeover module.Due to carrying out self-locking and solution
, it is necessary to which slide plate is tilted during lock experiment, this requires can only there is one piece of plate work in the first supporting plate 300 or the second supporting plate 400
Make, this makes it possible to rise experiment support plate one end, tilt slide plate.In order to realize above-mentioned functions, the utility model is employed
Changeover module, and by changeover module cut off or connect driving forces of the driven pulley A302 to the 5th axis body Z501.
Described changeover module, including it is arranged on the splined shaft portion Z5011 of the 5th axis body Z501 one end, described spline
Shaft portion Z5011 sections are spline；
It is cased with described splined shaft Z5011 in switching cylinder A400, described switching cylinder A400 provided with energy and spline shaft
Divide the Z5011 splined hole A404 of cooperation, and described switching cylinder A400 is also divided into：Overhanging section of A401, spacing collar A402, external splines
Section A403, cut-out section A405；
Overhanging section of described A401 passes through housing 100 and passes the one end of housing 100 and be connected with limited cap A101, described
Outer spline section A403 and driven pulley A302 belt wheel splined hole A3021 assemble.
When needing to cut off driven pulley A302 to the 5th axis body Z501 driving force, it is only necessary to pin limited cap A101, make
Limited cap A101 will switch cylinder A400 and be slided to splined shaft portion Z5011, until limited cap A101 connects with the lateral surface of housing 100
Touch；
During this, outer spline section A403 can depart from belt wheel splined hole A3021, spent while cutting off section A405 with belt wheel
Keyhole A3021 is assembled, due to cut-out section A405 not with belt wheel splined hole A3021 clamping close devices, therefore driven pulley A302 is with regard to nothing
Method drives the 5th axis body Z501 to rotate, and which achieves driving forces of the cut-out driven pulley A302 to the 5th axis body Z501.When
So, it is necessary to when connecting driven pulley to the 5th axis body Z501 driving force, it is only necessary to will switch cylinder A400 by limited cap A101
Outer to draw, until spacing collar A402 and the interior side contacts of housing 100, now outer spline section A403 just recovers and belt wheel spline
Hole A3021 is assembled.
Further, in order that driven pulley A302 does not drive switching cylinder completely when coordinating with cut-out section A405
A400, cut-out section A405 can directly be made the bearing being enclosed on switching cylinder A400, make outer ring and the driven pulley of this bearing
A302 belt wheel splined hole A3021 coordinates.
Further, after cut-out section A405 and belt wheel splined hole A3021 coordinates, belt wheel splined hole A3021 is made and outer
When spline segment A403 recovers to coordinate, because driven pulley A302 has occurred and that rotation, this results in belt wheel splined hole A3021 and outer
Spline segment A403 is possible to directly retract cooperation, and needs to find belt wheel splined hole A3021 and outer spline section A403 original accurately
Beginning position, then can just retract.But, because they are all packaged in housing 100, it is impossible to look at straight, therefore the process found accurately
It is very very long.In order to overcome this defect, indicator A601 can be fixed on driven pulley A302, while in housing
Set on 100 and indicate groove A110, described indicator stretches into instruction groove but do not pass through instruction groove；Meanwhile, in limited cap A101
It is upper that mark is set, when outer spline section and belt wheel splined hole A3021 cooperations, write down the mark and indicator A601 relative positions.
When recovering outer spline section with belt wheel splined hole A3021 cooperations, it is only necessary to first find indicator A601 and mark relative position accurately
Outer spline section can be achieved quickly with belt wheel splined hole A3021 to coordinate.
Described instruction groove A110 is collectively formed by mounting ring A701 lateral surfaces with the medial surface of housing 100, and described dress
It is connected with ring A701 by contiguous block A702 with housing 100.
Further, in order to realize the 4th axis body Z401 fine rotational, shell can be stretched out in the 4th axis body Z401
A driving gear A203 is fixed on the part of body 100, and the extension passes through and is then passed through case 102 after driving gear and wears
Go out the one end of case 102 to be connected with coarse adjustment knob A101；
Described driving gear A203 is engaged and described idler gear A202 and accurate adjustment gear with idler gear A202
A201 is engaged, and described accurate adjustment gear A 201 is arranged on accurate adjustment axle, and described accurate adjustment axle passes case 102, and passes cover
The end of shell 102 is connected with accurate adjustment knob A103；
The 4th described axis body Z401 is fixed with coarse adjustment knob A102 on the end of driving gear A203 one end；
The diameter of described accurate adjustment gear A 201 is less than driving gear A203 diameters.
Further, the secondary synchronous toothed belt B102 of the first described synchronous toothed belt B101 and first, the 4th synchronous toothed belt B401
It is identical with fourth officer synchronous toothed belt B402 structures, its inner side for can be with synchronous pulley engaged transmission timing belt part B01, outside
For the driving toothed portion B02 that can be engaged with gear.This structure can make synchronous toothed belt directly drive pinion rotation, so as to simplify
The drive mechanism of drive gear.
Further, the secondary rack B202 of the second described rack B201 and second, the secondary racks of the 3rd rack B301 and the 3rd
B302 and Gear Contact Surface are latch part B03, described latch part B03 energy and meshed transmission gear.
Further, the secondary rack B202 of described the second described rack B201 and second, the 3rd rack B301 and the
Three pair rack B302 are each attached to the inner side of top plate 101.
Further, when being slided for anti-limited slip block 500 on slide plate 600, sliding block skids off mounting groove 203, causes sliding block
Damage, the thickness of slide plate 600 can be made no more than installing the 2/3 of groove depth, this ensures that sliding block will not skid off slide plate
600 and all the time in mounting groove 203.
Further, when being unlocked experiment, sliding block 500 can slide to the bottom of slide plate 600 from the top of slide plate 600, such as
Fruit sliding block will also result in the damage of sliding block 500 if being collided with mounting groove bottom side, therefore can be at the bottom side of mounting groove 203
One buffer board 700 is set, and the described height of buffer board 700 should be at least over the 1/4 of slide plate thickness, and is not more than installation groove depth
Degree.It is that sliding block can be contacted with buffer board 700 first, because buffer board is made of elastic soft material to be glided in sliding block, therefore
It can anti-limited slip block be damaged.
Described buffer board 700 can be made of arc elastic plate, such as elastic caoutchouc, elastoplast.
Further, referring to Fig. 6 and Figure 22, gas is transported to tracheae 800 and is being transported to by air pump D101 for convenience, and
Entering pipe winding wheel D103 will not also wind, and can set gas supply assembly between air pump and external tracheae D301；
Described gas supply assembly, including, connection tracheae D102, three-axis body hollow section Z3011, described connection tracheae
D102 one end is connected with air pump D101 exhaust outlets, and the other end is rotatably connected with three-axis body hollow section Z3011 ends, described
Pipe winding wheel D103 be fixed on three-axis body hollow section Z3011, and the one end of tracheae 800 pass through pipe winding wheel D103 and the 3rd axle
Body hollow section Z3011 outer walls are connected with three-axis body hollow section Z3011 hollow spaces；The described center section of tracheae 800 winding
On pipe winding wheel D103, and the other end is connected with the air flue D401 in tracheae contiguous block 207, and described air flue D401 penetrates experiment
The edge of support plate 200 and connected with external tracheae D301.
Further, referring to Figure 23, the described bottom of sliding block 500 is provided with an accommodating chamber 502, and from the top of sliding block 500 to
Air guide through hole 501 is provided between accommodating chamber, described air guide through hole 501 can coordinate air guide with external tracheae D103.Work as external gas
When pipe D103 inputs gases at high pressure into accommodating chamber 502, buoyancy of the gas to sliding block is capable of detecting when.
Further, carried to can quickly read position of the sliding block on slide plate, sliding block when being tested in experiment
Position on plate, is calculated with facilitating, and can set scale 204 in the upper surface of loading side plate 209 of experiment support plate 200, together
When instruction line 601 is set on slide plate 600, instruction line 601 can be read by the correspondence position of instruction line 601 and scale 204
Position on experiment support plate 200, and sliding block end face and instruction line 601 are assured that sliding block to it when being tested
Position on experiment support plate 200.
Further, in order to reduce influences of the external tracheae D103 when being connected with sliding block 500, side plate can reprinted
Tray 202 is set on 209, and described external tracheae D103 is lifted by tray.
Further, hanging plate 602, described hanging plate 602 can be set on the one end of the first supporting plate 300 in slide plate 600
On be provided with hanging hole, described hanging hole can be hung with the hook of external sample to be closed to carry out other Experiments of Machanics.
Further, pressure gauge can be set on tracheae C103, escape pipe can be calculated by pressure gauge and tracheal diameter
Interior pressure.
Referring to Figure 24-Figure 25, a kind of experimental method based on above-mentioned experimental provision comprises the following steps：
5th, test self-locking and unblock angle
S11, sliding block is positioned on slide plate, and makes the end face of sliding block concordant with instruction line；
S12, will switch cylinder by limited cap and be pushed into, and driven pulley is coordinated with cut-out section to cut off driven pulley to the 5th
The driving force of axis body；
S13, rotating coarse adjustment knob or accurate adjustment knob makes the first supporting plate be risen support plate one end is tested upwards, and slide plate is inclined
Tiltedly to form inclined-plane；
S14, continues to drive the 4th axis body to rotate, and makes the increase of slide plate gradient, until sliding block produces slip on slide plate；
S15, reads the scale of tape 900 when sliding block is slided, this scale is exactly L3 length；
S16, because L1, L2 size have been determined, can be measured in advance, along with L3 length values can just be calculated
L1 and L2 the first angle a；
S17, the second angle b angle is instead released by the first angle a, and goes out first by known sliding block Mass Calculation
Partical gravity G1, the second partical gravity G2；
S18, frictional force F when sliding block is slided is calculated by the coefficient of friction of known slide plate, and this frictional force F is exactly
Kinetic force of friction between sliding block and slide plate, that is, maximum static friction force.
By said process, self-locking, unblock can be demonstrated to student with simple, intuitive, and calculate frictional force, gravity point
Power etc., by practice and theoretical combination, so as to reach preferable teaching efficiency.
6th, buoyant gas is tested
S21, by repeat S11-S13 the step of, by the first angle a be adjusted to not exceed sliding block slide when value；
S22, external tracheae and air guide through hole is connected, air pump is supplied to tracheae, until sliding block produces slip, write down now
Manometric atmospheric pressure value, and atmospheric pressure value is calculated by the diameter of atmospheric pressure value and external tracheae；
S23, gas in accommodating chamber is calculated in the second partical gravity G2 negative side by atmospheric pressure value and accommodating chamber sectional area
Upward budget buoyancy；
S24, the step of repeating S15-S18 calculates the stiction before being inflated to sliding block, and rub by dynamic in S18
Wipe power and subtract stiction acquisition difference frictional force, sliding block in S22 is calculated by difference frictional force divided by slide plate coefficient of friction
To the floating pressure of slide plate during slip；
S25, subtracts floating pressure by the second lavish gift component in S17 and obtains actual buoyancy；
S26, contrasts actual buoyancy and budget buoyancy, and the result of calculation of student is investigated in the case where considering error.Pass through
Above-mentioned steps, can effectively exercise student ' to self-locking, frictional force, partical gravity, buoyant gas, pressure pressure scheduling theory knowledge and
Correlation computations ability, can greatly improve the impression of student and the understanding to these knowledge.
7th, the elastic coefficient is tested
S31, spring one end hangs tight with hanging hole, and the other end hangs tight with sliding block one side；Read the initial length of now spring；
S32, will adjust slide plate gradient, until sliding block is slided again, measure the length of now spring, and calculate spring
Elongation；
S33, the first the partical gravity G1, the first partical gravity G1 calculated now subtracts the kinetic force of friction of sliding block and slide plate
F is exactly the elastic force of spring；
S34, coefficient of elasticity can be just calculated by the elastic force and elongation of spring.
The knowledge such as elastic force, the coefficient of elasticity for by above-mentioned steps students ' actual situation can be allowed to operate, understanding, calculate spring.
8th, the kinetic force of friction of direct test slider and slide plate
S41, switching cylinder is set back, outer spline section is coordinated with belt wheel splined hole, the 4th axis body is then driven, until
Experiment support plate rises to the height of needs；
S42, sliding block is placed on slide plate, is then hooked, is then pulled with tensiometer with the hook and sliding block of tensiometer
Sliding block is slided on slide plate, reads the reading on now tensiometer, this reading is exactly the actual measurement kinetic force of friction of sliding block and slide plate.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member just can make many modifications and variations without creative work according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of mechanics comprehensive experiment device, including, housing, top plate, experiment support plate, it is characterized in that：Described experiment support plate two
End is respectively equipped with support plate articulated slab and support plate hinged block, and described support plate articulated slab passes through the 7th axis body and the branch of the second supporting plate
Fagging hinged block assembles and forms articulated structure；
The second described supporting plate is away from supporting plate contiguous block is provided with supporting plate hinged block one end, the 6th axis body passes through support
Through hole on plate contiguous block is assembled with supporting plate contiguous block, and the 6th described axis body two ends are respectively fixed with the 6th gear and the 6th
Pinion；
The 6th described gear upper and lower ends are engaged with the 4th synchronous toothed belt and the 3rd rack respectively, and the 6th described gear can
With the 4th synchronous toothed belt and the 3rd rack engagement rotation；
The 6th described pinion two ends are engaged with fourth officer synchronous toothed belt and the 3rd secondary rack respectively, and the 6th described secondary tooth
Wheel can be with fourth officer synchronous toothed belt and the 3rd secondary rack engagement rotation；
Match somebody with somebody respectively with the 5th belt wheel and the 8th belt wheel and merge to form V belt translation structure in the 4th described synchronous toothed belt two ends；
The 5th described belt wheel is fixed on the 5th axis body one end, and the 5th described axis body other end is fixed with the 5th secondary pulley；
The 8th described belt wheel is fixed on the 8th axis body one end, and the 8th described axis body other end is fixed with the 8th secondary pulley；
The 5th described secondary pulley and the 8th secondary pulley are matched somebody with somebody with the 4th synchronous toothed belt two ends merge to form V belt translation structure respectively；
The 5th described axis body is additionally provided with splined shaft portion, described splined shaft portion on the 5th belt wheel one end and is cased with cutting
Driven pulley is cased with creeling, described switching cylinder, described driven pulley is cooperatively formed by power belt with driving pulley
V belt translation structure；
Described driving pulley is fixed on the 4th axis body, and the 4th belt wheel and the 4th subband are additionally provided with the 4th described axis body
Wheel, driving gear；
The 4th described belt wheel and the 4th secondary pulley respectively with the first synchronous toothed belt and the first secondary synchronous toothed belt one end fits, it is described
The first synchronous toothed belt and the first secondary synchronous toothed belt other end respectively with the first belt wheel and the first secondary pulley with merging formation band biography
Dynamic structure；
Described the first belt wheel and the first secondary pulley is installed on the first axle body；
Driving toothed portion on the outside of the first described synchronous toothed belt and the first secondary synchronous toothed belt is secondary with second gear and second
Gear is engaged, and described second gear and the second pinion are also engaged with the second rack and the second secondary rack respectively, and described
Second gear and the second pinion respectively with the first synchronous toothed belt and the first secondary synchronous toothed belt, the second rack and the second secondary rack
B202 engagement rotations；
Described second gear and the second pinion is installed on the second axle body, and described the second axle body passes through the first supporting plate
On first support contiguous block rotatably assembled with the first supporting plate；
The first described supporting plate is assembled and formed with support plate hinged block by the 9th axis body away from first support contiguous block one end
Hinge arrangement；
Mounting groove, both sides are additionally provided with described experiment support plate and is provided with tape mounting blocks and tracheae contiguous block, described mounting groove
In slide plate is installed；
Described tape mounting blocks are connected with tape one end, and described tracheae contiguous block is connected with tracheae one end；
Scale is carved with described tape and the other end is wrapped in foot wheel；
Described tracheae is used for air guide, and its other end is connected with air pump exhaust outlet, and described tracheae interlude is wrapped in around pipe
On wheel；
Described is each attached on three-axis body around foot wheel and pipe winding wheel, be further fixed on described three-axis body the 3rd gear and
The driving of 3rd pinion, the 3rd described gear and the 3rd pinion respectively with the first synchronous toothed belt, the first secondary synchronous toothed belt
Toothed portion engaged transmission；
Fixation is rotatably assembled in described the first axle body, the 4th axis body, the 5th axis body two ends with housing both sides respectively.
2. a kind of mechanics comprehensive experiment device as claimed in claim 1, it is characterized in that：Protruding end is provided with slide plate both sides
With retraction end, short slot is formed between described protruding end and retraction end；
Neck, described neck and protruding end snap-fit and neck top are set on mounting groove and slide plate both sides correspondence position
Flange portion and short slot coordinate.
3. a kind of mechanics comprehensive experiment device as claimed in claim 1, it is characterized in that：Also include changeover module, described cuts
Component is changed, including is arranged on the splined shaft portion of the 5th axis body one end, described spline shaft partial cross-section is spline；
It is cased with switching in cylinder, described switching cylinder on described splined shaft provided with the splined hole that with splined shaft portion can coordinate, and
Described switching cylinder is also divided into：Overhanging section, spacing collar, outer spline section, cut-out section；
Described overhanging section passes through housing and passes shell one end and be connected with limited cap, described outer spline section and driven belt
The belt wheel splined hole assembling of wheel.
4. a kind of mechanics comprehensive experiment device as claimed in claim 3, it is characterized in that：Instruction is fixed with driven pulley
Pin, groove is indicated while being set on housing, and described indicator stretches into instruction groove but do not pass through instruction groove；Set on limited cap
It is equipped with mark.
5. a kind of mechanics comprehensive experiment device as claimed in claim 4, it is characterized in that：Described instruction groove is on the outside of mounting ring
Face is collectively formed with case inside face, and described mounting ring is connected by contiguous block with housing.
6. a kind of mechanics comprehensive experiment device as claimed in claim 1, it is characterized in that：The part of housing is stretched out in the 4th axis body
On be fixed with a driving gear, and the extension passes through and is then passed through case after driving gear and passes case one end and coarse adjustment
Knob is connected；
Described driving gear is engaged with idler gear and described idler gear is engaged with accurate adjustment gear, described accurate adjustment gear
On accurate adjustment axle, and described accurate adjustment axle passes case, and passes case end and be connected with accurate adjustment knob；
The 4th described axis body is fixed with coarse adjustment knob on the end of driving gear one end；
The diameter of described accurate adjustment gear is less than driving gear diameter.
7. a kind of mechanics comprehensive experiment device as claimed in claim 1, it is characterized in that：It is provided with mounting groove bottom side slow
Punching, described buffer board height should be at least over the 1/4 of slide plate thickness, and is not more than installation groove depth.
8. a kind of mechanics comprehensive experiment device as claimed in claim 1, it is characterized in that：Set between air pump and external tracheae
There is gas supply assembly；
Described gas supply assembly, including, connection tracheae, three-axis body hollow section, described connection tracheae one end are vented with air pump
Mouth connection, the other end is rotatably connected with three-axis body hollow section end, and described pipe winding wheel is fixed on three-axis body hollow section
On, and tracheae one end passes through pipe winding wheel and three-axis body hollow section outer wall to be connected with three-axis body hollow section hollow space；It is described
Tracheae center section be wrapped on pipe winding wheel, and the other end is connected with the air flue in tracheae contiguous block, and described air flue is penetrated
Test support plate edge and connected with external tracheae.
9. a kind of mechanics comprehensive experiment device as claimed in claim 1, it is characterized in that：Also include sliding block, slider bottom is provided with
Accommodating chamber, and air guide through hole is provided between slider top to accommodating chamber, described air guide through hole and external tracheae coordinate air guide.
10. a kind of mechanics comprehensive experiment device as described in claim 1-9 is any, it is characterized in that：First supporting plate and second
Supporting plate and experiment support plate are not parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621253531.2U CN206411959U (en) | 2016-11-22 | 2016-11-22 | A kind of mechanics comprehensive experiment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621253531.2U CN206411959U (en) | 2016-11-22 | 2016-11-22 | A kind of mechanics comprehensive experiment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340227A (en) * | 2016-11-22 | 2017-01-18 | 刘桐溪 | Integrated mechanics experiment apparatus and experiment method thereof |
| CN110033717A (en) * | 2019-03-22 | 2019-07-19 | 重庆懿熙品牌策划有限公司 | A kind of switching mechanism and its inflatable advertisement cabinet |
-
2016
- 2016-11-22 CN CN201621253531.2U patent/CN206411959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340227A (en) * | 2016-11-22 | 2017-01-18 | 刘桐溪 | Integrated mechanics experiment apparatus and experiment method thereof |
| CN106340227B (en) * | 2016-11-22 | 2022-02-11 | 刘桐溪 | Comprehensive mechanical experiment device and experiment method thereof |
| CN110033717A (en) * | 2019-03-22 | 2019-07-19 | 重庆懿熙品牌策划有限公司 | A kind of switching mechanism and its inflatable advertisement cabinet |
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