CN207268908U - Novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument - Google Patents
Novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument Download PDFInfo
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- CN207268908U CN207268908U CN201720761917.2U CN201720761917U CN207268908U CN 207268908 U CN207268908 U CN 207268908U CN 201720761917 U CN201720761917 U CN 201720761917U CN 207268908 U CN207268908 U CN 207268908U
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Abstract
It the utility model is related to novel three-dimensional adjustable quantitative verification Double cone up rolling condition experiment instrument, including base, center line, support leg, track end support rod foot mobile chute, track end right support bar foot, track end left support bar foot, right track, left track, left and right track beginning common rotation axis and rotary axle box；Base left end is provided with support leg, support leg upper end is provided with rotary axle box, rotary axle box right end is connected with main scale plate rail, main scale plate rail periphery is provided with main ruler disk, track beginning common rotation axis in left and right are arranged in rotary axle box, track beginning common rotation axis in left and right can be freely rotated in rotary axle box, and at left and right track beginning, common rotation axis right end connects vernier scale disk.The beneficial effects of the utility model are：Multiple modules are devised, can voluntarily be assembled, dismantled and easy to adjust by student, are conducive to that student is comprehensive to start, operate, training student innovation ability.
Description
Technical field
Experiment instrument is the utility model is related to, more particularly to a kind of novel three-dimensional adjustable quantitative verification Double cone up rolling condition is real
Test instrument.
Background technology
Double cone up rolling experiment instrument is a kind of illustrative laboratory apparatus that universities and middle schools are used for verifying the law of conservation of mechanical energy.
Data shows, the cone-on-rail experiment instrument of national physics laboratory of universities and middle schools spreads all over using fixing two on base in
Heart line is symmetrical trapped orbit, and illustrative experiment can only be done using the double cone body of a fixed dimension.This demonstration is only full
Sufficient Double cone up rolling conditionThe a certain state of countless state.The device can only be double by demonstrating
Cone upper rail process allows observation of students, although and changed from high to low by the double cone weight heart, produced from Double cone up rolling
Raw view effect demonstrates gravity acting, is allowed to gravitional force and is converted into kinetic energy to verify the law of conservation of mechanical energy.But base
Target is much unable to reach in training ability angle, it is difficult in terms of movement mechanism is rolled on experimental principle and bicone
The essence and intension of Double cone up rolling are understood from higher, deeper time, it is even more impossible to allow student to complete the reality by starting design
Test.For this reason, applicant is in " the three-dimensional adjustable cone of application on January 18th, 2012 to Patent No. ZL201120221352.1
Upper rolling experiment designed instrument " utility model patent, symmetrically turns an angle in two-orbit, employs sphere mechanical rotation form
To change two orbit plane inclination angles, since this sphere structure manufacturing process is relatively cumbersome, cost is also of a relatively high, and in 2013
" modularization Omnibearing adjustable quantitative verification Double cone up rolling of the application on March 20, in Patent No. ZL201220433596.0
Condition experiment instrument " utility model patent, still, the accurate measurement for being reduced height to vertical axes again due to this design method are brought
Difficulty, precision is not high, error is also bigger than normal.Based on this, for the previous period I " vertical drawing and pulling type three-dimensional regulation quantifies for invention again
Verify Double cone up rolling condition experiment instrument ", the designing scheme of the instrument is calculated by measuring correlation distance parameterWith
Tan α verify Double cone up rolling experiment condition, and whole story position is difficult to accurately determine when having a disadvantage in that measurement distance, and there are certain mistake
Difference.
Utility model content
The purpose of the utility model is to overcome deficiency of the prior art, there is provided and it is a kind of rational in infrastructure, high certainty of measurement
Novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument.
The purpose of this utility model is achieved through the following technical solutions.This novel three-dimensional adjustable quantitative verification cone
Condition experiment instrument, including base, center line, support leg, track end support rod foot mobile chute, the right branch of track end are rolled on body
Strut foot, track end left support bar foot, right track, left track, left and right track beginning common rotation axis and rotary axle box；The bottom of at
Seat left end is provided with support leg, rotary axle box is provided with support leg upper end, rotary axle box right end is connected with main scale plate rail, main scale
Plate rail periphery is provided with main ruler disk, and track beginning common rotation axis in left and right are arranged in rotary axle box, and left and right track beginning is common
Rotation axis can be freely rotated in rotary axle box, and at left and right track beginning, common rotation axis right end connects vernier scale disk, is swimming
Scale disk peripheral edge is separated by 180 ° of both ends, is respectively fixed with left vernier scale and right vernier scale, left vernier scale and right vernier scale with
The inner side of main ruler disk on main scale plate rail matches in approximately the same plane；The right end of right track is provided with track end right support
Bar foot, the left end of left track are provided with track end left support bar foot, track end right support bar foot and track end left support
Bar foot can be respectively that symmetrically along track end support rod foot mobile chute, left both sides are symmetrically slided to the right on center line in base,
Right track and left track are symmetrically opened, and right track can surround horizontal turn of right track beginning on left and right track beginning common rotation axis
Moving axis horizontally rotates, and left track can surround horizontal turn of left track beginning horizontal rotating shaft on left and right track beginning common rotation axis
Dynamic, right track beginning horizontal rotating shaft is on left and right track beginning common rotation axis center with left track beginning horizontal rotating shaft
Symmetrically；Track end right support bar foot and track end left support bar foot are separately positioned on track end support rod foot mobile chute
In, the inner edge of track end support bar foot mobile chute is provided with the support for measuring right track and left track opening angle
Leg sliding slot indicates angle graduation mark.
As preferred：The support leg includes beginning fixing supporting legs, one beginning of swivel nut in beginning fixing supporting legs upper end
Mobile supporting rod up and down adjustment is spiral, supports beginning movement supporting rod to turn in the spiral upper end of beginning movement supporting rod up and down adjustment
Foot, beginning movement supporting rod turn foot and support beginning movement supporting rod, and at beginning, movement post upper is provided with rotary axle box.
As preferred：Be provided with respectively at the branch legs and feet of right support leg and left support leg right support legs and feet fixed screw and
Left support legs and feet fixed screw, right support leg and left support leg upper end are respectively arranged with the spiral and left branch of right support bar up and down adjustment
Strut up and down adjustment is spiral.
As preferred：The hollow mobile post upper difference of hollow mobile supporting rod and left track end in right track end
Right track square screw support column and left track square screw support column are provided with, in right track square screw support column and left rail
Road square screw support top end is respectively arranged with right track end vertical direction and rotates axis and left track end side vertically
To axis is rotated, right track end vertical direction rotates axis and left track end vertical direction rotates axis and can distinguish
Axis sliding slot is rotated along right track end vertical direction and left track end vertical direction rotates axis sliding slot and slides rotation.
As preferred:It is 2cm that right track beginning horizontal rotating shaft horizontally rotates distance between axles with left track beginning
The beneficial effects of the utility model are：
1st, multiple modules are devised, can voluntarily be assembled, dismantled and easy to adjust by student, it is comprehensive dynamic to be conducive to student
Hand, operation, training student innovation ability；
2nd, track end support leg in left and right employs circumferentially track movement, can directly read angle between the track of left and right
γ, precision is up to 15 '；
3rd, number reading method is coordinated using major and minor ruler (vernier scale), obtains left and right orbit plane inclination angle, be conducive to student's study
Major and minor ruler coordinates number reading method, and the design method of high-acruracy survey angle, is allowed to measurement accuracy and can reach 1 '；
4th, the laboratory apparatus realizes three-dimensional regulation method by using three rotation axis synergic rotations, that is, changes left and right rail
The right left track beginning horizontal rotating shaft of road angle, and the square screw coordinated with it；Change left and right orbit plane inclination angle
Vertical direction rotates axis, and it is rotated in vertical direction rotates axis sliding slot；To ensure that right left track begins
The mobile supporting rod vertical direction in end moves up and down, and the change at left and right orbit plane inclination angle, and there is provided the right left track beginning
Hold common rotation axis；
5th, not only track beginning height can be reduced by the way that track beginning up and down adjustment in left and right is spiral, to change left and right track
The measurement at common plane inclination angle, the especially inclination angle is that rotary axle box passes through main scale plate rail and main ruler disk phase by ingehious design
Even, and left and right track beginning common rotation axis are connected with secondary (vernier) ruler, then coordinate reading by major and minor (vernier) ruler,
So as to which accurately measure or so orbit plane turns over angle (i.e. change of pitch angle amount)；
6th, in conclusion the experiment instrument smart structural design, without measuring the air line distance of relevant parameter, but it is direct
Read angle and be just able to verify that Double cone up rolling experiment condition, intuitive is strong, simple operation, and precision is high, and experiment effect is good.
Brief description of the drawings
Fig. 1 is understructure top view；
Fig. 2 is experiment instrument overall structure right front view；
Fig. 3 is the left front view of experiment instrument overall structure；
When Fig. 4 is left and right parallel track and beginning and end connection structure top view；
Fig. 5 is that left and right track beginning horizontal rotating shaft, up and down adjustment be spiral and the direction along ng a path front view such as major-minor ruler；
Fig. 6 is that left and right Orbital Symmetry opens γ angle state top views；
Fig. 7, which is that beginning up and down adjustment is spiral, moves down rear left right track planar tilt overall structure right front view；
Fig. 8 is left and right beginning track common rotation axis and vernier scale disk connection figure；
Fig. 9 is the vertical rotary axle box in left and right track beginning and main ruler disk connection figure；
Figure 10 is that main scale and vernier scale coordinate read text scale orientation diagram；
Figure 11 is the precision of vernier scale；
Figure 12 is track end supporting rod shift position scale；
Figure 13 is verification Double cone up rolling condition experiment principle schematic.
Embodiment
The utility model is described further with reference to embodiment.The explanation of following embodiments is only intended to help and manages
Solve the utility model.It should be pointed out that for those skilled in the art, the utility model principle is not being departed from
On the premise of, some improvement and modification can also be carried out to the utility model, these are improved and modification also falls into the utility model
In scope of the claims.
As shown in Figure 1, it is understructure top view.1st, base, 1-1, leveling spirit bubble, 2, center line, 2-1, left track
Projection line, 2-2, right track projection line, 3, support leg, 4, track end support rod foot mobile chute, 4-1, support leg sliding slot refer to
Show angle index line, 5, track end right support bar foot, 5-0, right support legs and feet fixed screw, 6, track end left support bar
Foot, 6-0, left support legs and feet fixed screw.
As shown in Fig. 2, it is experiment instrument overall structure right front view.1st, support is fixed at base, 1-0, support feet, 3-0, beginning
Leg, 3-1, beginning movement supporting rod turn foot, and 3-3, beginning movement supporting rod, 3-4, beginning movement supporting rod up and down adjustment are spiral,
5th, track end right support bar foot, 5-0, right support legs and feet fixed screw, 5-1, right support leg, 5-2, right support bar up and down adjustment
It is spiral, 5-3, the hollow mobile supporting rod in right track end, 5-4, right track square screw support column, 5-5, right track square screw
Support column lock screw, 7, right track, 7-0, right track beginning horizontal rotating shaft, 7-1, the rotation axis activity of right track beginning are empty
Between, 7-2, right track end vertical direction rotate axis sliding slot, and 7-3, right track end vertical direction rotate axis, and 9, left
Right track beginning common rotation axis；9-1, vernier scale disk, 9-10, left vernier scale, 9-11, right vernier scale, 10, rotary axle box, 10-
1st, main ruler disk.
As shown in figure 3, it is the left front view of experiment instrument whole result.1st, support is fixed at base, 1-0, support feet, 3-0, beginning
Leg, 3-1, beginning movement supporting rod turn foot, and 3-3, beginning movement supporting rod, 3-4, beginning movement supporting rod up and down adjustment are spiral,
6th, track end left support bar foot, 6-0, left support legs and feet fixed screw, 6-1, left support leg, 6-2, left support bar up and down adjustment
It is spiral, 6-3, the hollow mobile supporting rod in left track end, 6-4, left track square screw support column, 6-5, left track square screw
Support column lock screw, 8, left track, 8-0, left track beginning horizontal rotating shaft, 8-1, the rotation axis activity of left track beginning are empty
Between, 8-2, left track end vertical direction rotate axis sliding slot, and 8-3, left track end vertical direction rotate axis, and 9, left
Right track beginning common rotation axis；9-1, vernier scale disk, 10, rotary axle box, 10-1, main ruler disk.
As shown in figure 4, when being left and right parallel track and beginning and end connection structure top view.7-0, right track beginning water
Flat turn moving axis, 7, right track, 7-2, right track end vertical direction rotate axis sliding slot, 7-3, right track end vertical direction
Rotate axis, 8-0, left track beginning horizontal rotating shaft, 8, left track, 8-2, left track end vertical direction rotate axis
Sliding slot, 8-3, left track end vertical direction rotate axis, and 9, left and right track beginning common rotation axis, 9-1, vernier scale disk,
10th, rotary axle box, 10-0, main scale plate rail, 10-1, main ruler disk.
As shown in figure 5, for left and right track beginning horizontal rotating shaft, up and down adjustment is spiral and the direction along ng a path such as major-minor ruler just
View.3-0, beginning fixing supporting legs, 3-1, beginning movement supporting rod turn foot, and 3-3, beginning movement supporting rod, 3-4, beginning move
Dynamic supporting rod up and down adjustment is spiral, 7-0, right track beginning horizontal rotating shaft, 7-1, right track beginning rotation axis activity space, 8-
0th, left track beginning horizontal rotating shaft, 8-1, left track beginning rotation axis activity space, 9, left and right track beginning common rotation axis,
9-1, vernier scale disk, 10, rotary axle box, 10-0, main scale plate rail, 10-1, main ruler disk.
As shown in fig. 6, open γ angle state top views for left and right Orbital Symmetry.1st, base, 1-1, leveling spirit bubble, 2,
Center line, 2-1, left track projection line, 2-2, right track projection line, 3, support leg, 4, track end support rod foot mobile chute,
4-1, support leg sliding slot instruction angle graduation mark, 5, track end right support bar foot, 6, track end left support bar foot, 7, right
Track, 8, left track, 9, left and right track beginning common rotation axis, 9-1, vernier scale disk, 10, rotary axle box, 10-0, main ruler disk
Frame, 10-1, main ruler disk.
The novel three-dimensional adjustable quantitative verification Double cone up rolling condition experiment instrument of the present embodiment, three are provided below in base 1
A support feet 1-0, sets a leveling spirit bubble 1-1 in base upper surface, base left end is provided with beginning fixing supporting legs 3-
0, in beginning fixing supporting legs 3-0 upper ends, one beginning of swivel nut moves the spiral 3-4 of supporting rod up and down adjustment, and supporting rod is moved at beginning
The spiral 3-4 upper ends of up and down adjustment support beginning movement supporting rod to turn foot 3-1, and beginning movement supporting rod turns foot 3-1 and supports the beginning
The mobile supporting rod 3-3 in end, rotary axle box 10 is provided with beginning movement supporting rod 3-3 upper ends,
10 right end of rotary axle box is connected with main scale plate rail 10-0, and main scale plate rail 10-0 peripheries are provided with main ruler disk 10-1,
It is arranged left and right track beginning common rotation axis 9 in rotary axle box 10, left and right track beginning common rotation axis 9 can be
It is freely rotated in rotary axle box 10, at left and right track beginning, 9 right end of common rotation axis connects vernier scale disk 9-1, in vernier scale disk
9-1 peripheral edges are separated by 180 ° of both ends and are respectively fixed with left vernier scale 9-10 and right vernier scale 9-11, left vernier scale 9-10 and the right side
Vernier scale 9-11 matches with the inner side of the main ruler disk 10-1 on main scale plate rail 10-0 in approximately the same plane, as Fig. 2,5,7,
Shown in 10；The right end of right track 7 is provided with right support leg 5-1, and the right end of left track 8 is provided with left support leg 6-1, track end
Right support bar foot 5 and track end left support bar foot 6 can be supported symmetrically in base 1 on center line 2 along track end respectively
Bar foot mobile chute 4 to the right symmetrically slide by left both sides, and right track 7 and left track 8 are symmetrically opened, i.e., right track 7 can surround left and right
Right track beginning horizontal rotating shaft 7-0 on track beginning common rotation axis 9 horizontally rotates, and left track 8 can surround left and right track
Left track beginning horizontal rotating shaft 8-0 on beginning common rotation axis 9 horizontally rotates, right track beginning horizontal rotating shaft 7-0 with
Left track beginning horizontal rotating shaft 8-0 is symmetrical on left and right orbit centre (i.e. 3 center of support leg), and right track beginning is horizontal
Rotation axis 7-0 and left track beginning horizontal rotating shaft 8-0 spacing (or during the parallel track of left and right) are 2cm, as shown in Figure 4,5, 6；
Track end right support bar foot 5 and track end left support bar foot 6 are separately positioned on track end support rod foot mobile chute 4
In, it is provided with the inner edge of track end support bar foot mobile chute 4 for measuring right track 7 and 8 opening angle of left track
Support leg sliding slot indicates angle graduation mark 4-1, and the right side is provided with respectively at the branch legs and feet of right support leg 5-1 and left support leg 6-1
Support legs and feet fixed screw 5-0 and left support legs and feet fixed screw 6-0, right support leg 5-1 and left support leg 6-1 upper ends difference
It is provided with right support bar up and down adjustment spiral 5-2 and the spiral 6-2 of left support bar up and down adjustment, the spiral 5- of right support bar up and down adjustment
The 2 and spiral 6-2 of left support bar up and down adjustment is respectively intended to adjust the hollow mobile supporting rod 5-3 in right track end and left track end
Hollow mobile supporting rod 6-3 height, hollow mobile supporting rod 5-3 and the hollow mobile supporting rod in left track end in right track end
6-3 upper ends are respectively arranged with right track square screw support column 5-4 and left track square screw support column 6-4, in right track side
Position spiral support column 5-4 and left track square screw support column 6-4 tops are respectively arranged with the vertical direction movement of right track end
Rotation axis 7-3 and left track end vertical direction rotate axis 8-3, right track end vertical direction rotate axis 7-3 and
Left track end vertical direction rotate axis 8-3 can respectively along right track end vertical direction rotate axis sliding slot 7-2 and
Left track end vertical direction rotates axis sliding slot 8-2 and slides rotation, and in right track end, vertical direction rotates axis 7-3
After rotating axis 8-3 location determinations with left track end vertical direction, the plane determined by right track 7 with left track 8 can enclose
Around right track end, vertical direction rotates axis 7-3 and left track end vertical direction rotates the common of axis 8-3 compositions
Rotation axis is freely rotated, meanwhile, left and right track beginning common rotation axis 9 can also rotate synchronously in rotary axle box 10, left and right rail
Road beginning common rotation axis 9 will drive vernier scale disk 9-1 to rotate, and vernier scale disk 9-1 will also carry left vernier scale thereon
9-10 and right vernier scale 9-11 are rotated synchronously, i.e., left vernier scale 9-10 main ruler disk initial position opposite with right vernier scale 9-11 is just
An angle can be rotated, which is the angle that right track 7 and left track 8 determine Plane Rotation, i.e. left track 8 and right rail
Road 7 determines the variable quantity of planar inclination.As shown in Fig. 2,7.
The accuracy of measurement
1st, the scale precision of base associated scale
As shown in Figure 1, in understructure top view, it along base longitudinal direction scale label is each lattice 1cm that center line, which is, often
1cm is divided into 10 lattice again, and 1mm is represented per lattice；Support leg sliding slot indicates that the instruction angle index precision of angle graduation mark is
0.5 ° (30 '), as shown in figure 12；
2nd, vernier scale precision
30 lattice on vernier scale are corresponding with 29 lattice on main scale, and 0.5 ° (30 ') are assigned in 30 lattice on vernier scale, trip
1 lattice on scale are 1 ', i.e., the precision of vernier scale is 1 ', as shown in figure 11.
Laboratory apparatus adjusting method
1st, leveling base.Three support feet 1-0 height are adjusted, base 1 is allowed to and raises the bubble of flat spirit bubble 1-1 in circle
Middle position is enclosed, then base 1 adjusts level；
2nd, two tracks are adjusted to be in same level.The left and right track beginning spiral 3-4 of movement supporting rod up and down adjustment is extremely
Appropriate height, by the track end right support bar foot 5 of right track 7 and the track end left support bar foot 6 of left track 8 on center
Line 2 is symmetrically draws close, and at this time, right track 7 should be in parastate with left track 8, as shown in Figure 4；Horizon rule is tilted and is put
Lowered in right track 7 and 8 upper surface of left track, the spiral 5-2 of adjustable track end right support bar up and down adjustment and left support bar
Spiral 6-2 is saved, allows horizon rule bubble to be in circle middle position, at this time, right track 7 has been adjusted to same level with left track 8
On；As shown in Figure 2,3, 4；
3rd, double cone body basal diameter and height, and cone is given finally to roll the other parameters of dead reckoning according to teacher；
4th, according to associated arguments are calculated, the track end right support bar foot 5 of right track 7 and the track of left track 8 are adjusted
End left support bar foot 6 slides along track end support rod foot mobile chute 4 and calculates parameter (angle), this process, right track 7
Rotated around right track beginning horizontal rotating shaft 7-0, left track 8 is rotated around left track beginning horizontal rotating shaft 8-0, again will
Horizon rule is placed on right track 7 and 8 upper surface of left track, respectively the adjustable track end spiral 5-2 of right support bar up and down adjustment with
The spiral 6-2 of left support bar up and down adjustment, to ensure that right track 7 and left track 8 are in same level.As shown in Figure 6；
5th, right track square screw support column 5-4 and left track square screw support column 6-4 is adjusted, is allowed to right track end
Vertical direction rotate axis 7-3 and left track end vertical direction rotate axis 8-3 respectively with right track 7 and left track 8
Bisector of angle is vertical, locks right track end vertical direction respectively and rotates axis 7-3 and the shifting of left track end vertical direction
The right track of the corresponding right track square screw support column 5-4 of turn moving axis 8-3 and left track end square screw support column 6-4
Square screw support column lock screw 5-5 and left track square screw support column lock screw 6-5；
6th, according to calculated parameter, the beginning movement spiral 3-4 of supporting rod up and down adjustment in left and right is rotated down, is sleeved on beginning
The beginning movement supporting rod of the mobile spiral 3-4 upper ends of supporting rod up and down adjustment turns foot 3-1 and moves down therewith, and supporting rod is moved with beginning
Turn the beginning movement supporting rod 3-3 that foot 3-1 is connected to move down, this process, right track 7 will be surrounded with plane determined by left track 8
Right track end vertical direction rotates axis 7-3 and rotates axis 8-3 one angle of rotation with left track end vertical direction,
Meanwhile left and right track beginning common rotation axis 9 can rotate synchronously in rotary axle box 10, left and right track beginning common rotation axis 9
Vernier scale disk 9-1 is driven to rotate, vernier scale disk 9-1 drives left vernier scale 9-10 and right vernier scale 9-11 rotations thereon, Zuo You
The average value of scale 9-10 and right vernier scale 9-11 institutes gyration, it should determine what plane turned over right track 7 and left track 8
Angle is identical；
7th, after each related link regulates, the fixed screw at all rotations is locked；
8th, bicone is put to track beginning (low side) place and is tested.As shown in Fig. 7,13；
9th, rolling on cone track is placed on according to double cone body to move above and below supporting rod to adjust left and right track beginning with not rolling
Spiral 3-4 is adjusted, to change beginning movement supporting rod 3-3 height, adjusting is so repeated, until double cone body just rolls
Untill dynamic, verify whether Double cone up rolling experiment condition is correct with this.Meanwhile with experiment value compared with theoretical value, to count
Percent error is calculated, carrys out judgment experiment error size successively.
Verify Double cone up rolling condition experiment principle
1st, double cone body apex angle half-angle tangent value is calculated
One of them of double cone body used in experiment is taken, using vernier caliper measurement double cone body diameter mi(mm), high ni
(mm), then double cone body apex angle half is just cut to
2nd, method of the measurement in experiment with double cone body or so track angle
According to selected double cone body height ni(mm), left and right track end fixing supporting legs are determined using vernier caliper measurement
It is the support leg center distance s for symmetrically going to relevant position on center linei(mm), and beginning fixing supporting legs center to a left side
The vertical range l of the right track end fixing supporting legs line of centresi(mm), then angle γ between after left and right Orbital Symmetry movesiOne
Half is just cut to
3rd, calculate left and right track definite plane turn over the theoretical value of angle (i.e. inclination angle knots modification)
According to Double cone up rolling condition
Wherein, βiRepresent double cone body apex angle, γiRepresent the left and right track end very tested to some double cone body
The angle of interorbital, α when end fixing supporting legs go to relevant position or soiRepresent that double cone body realizes when rolling or so track institute
Determine that plane turns over angle (i.e. inclination angle knots modification)；
Allow
Then tan αi＜ fi, obtain
4th, the experiment value of left and right orbit plane institute rotational angle (i.e. inclination angle knots modification) is determined
In the case where left and right track is symmetrical, parallel and upper surface level-off precondition on center line.On base center
Line slides for the symmetrical left and right track end fixing supporting legs that rotate on support leg slideway, treats left and right track end fixing supporting legs
Center spacing is si(mm), left and right track fixing supporting legs foot lock screw is locked, leveling or so track is in a plane again
On, the corresponding scale of 0 graduation mark of left and right vernier scale read on vernier scale disk is respectivelyBeginning is moved into supporting rod
Up and down adjustment downward spiral rotates, and left and right track beginning moves down, and track beginning common rotation axis in left and right will begin in left and right track
Hold in vertical rotary axle box and rotate, while track beginning common rotation axis in left and right can also drive vernier scale disk to rotate synchronously, and treat a left side
Right track plane turns over angle (left and right orbit inclination angle knots modification) about αiWhen (theoretical value), double cone body is placed on left and right track and is begun
End, then movement supporting rod up and down adjustment in fine motion beginning is spiral up and down, untill treating that double cone body just slowly rolls, again reads off
The corresponding scale of 0 graduation mark of left and right vernier scale is respectivelyThus, it is possible to calculate the definite plane of left and right track institute
The angle [alpha] turned overi1(experiment value) is
The theoretical value of left and right orbit plane angulation change amount (i.e. change of pitch angle amount) is compared with experiment value, using percentage
Error is expressed as
The percent error value size determines the high bottom of the experimental precision, and the smaller precision of percent error is higher, conversely, precision is got over
It is low.
It should be strongly noted that rolled for a long time, it is necessary to advancing the track on the track of left and right to demonstrate double cone body
Length, can be fixed on track least significant end by gear cone thing, then left and right track end gear cone thing spacing should be bicone height n, this
When, track end position where similar triangles can be used to keep off cone thing is scaled to left and right track end vertical direction and rotates
At above axis, so it is assured that left and right track end supports the spacing between legs and feet center, so that it is determined that left and right track is last
Hold support leg center line distance si(mm)。
Claims (5)
1. a kind of novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument, it is characterised in that：Including base (1), in
Heart line (2), support leg (3), track end support rod foot mobile chute (4), track end right support bar foot (5), track end
Left support bar foot (6), right track (7), left track (8), left and right track beginning common rotation axis (9) and rotary axle box (10)；
Base (1) left end is provided with support leg (3), and rotary axle box (10), rotary axle box (10) right end are provided with support leg (3) upper end
It is connected with main scale plate rail (10-0), main scale plate rail (10-0) periphery is provided with main ruler disk (10-1), in rotary axle box (10) inner sleeve
If left and right track beginning common rotation axis (9), left and right track beginning common rotation axis (9) can be in rotary axle box (10) freely
Rotate, vernier scale disk (9-1) is connected in left and right track beginning common rotation axis (9) right end, in vernier scale disk (9-1) peripheral edge
It is separated by 180 ° of both ends and is respectively fixed with left vernier scale (9-10) and right vernier scale (9-11), left vernier scale (9-10) and right vernier scale
(9-11) matches with the inner side of the main ruler disk (10-1) on main scale plate rail (10-0) in approximately the same plane；Right track (7)
Right end is provided with track end right support bar foot (5), and the left end of left track (8) is provided with track end left support bar foot (6), rail
Road end right support bar foot (5) and track end left support bar foot (6) can be respectively symmetrical on center line (2) in base (1)
Along track end support rod foot mobile chute (4), left both sides are symmetrically slided to the right, and right track (7) and left track (8) are symmetrically opened,
Right track (7) can surround horizontal turn of right track beginning horizontal rotating shaft (7-0) on left and right track beginning common rotation axis (9)
Dynamic, the left track beginning horizontal rotating shaft (8-0) that left track (8) can be surrounded on left and right track beginning common rotation axis (9) is horizontal
Rotate, right track beginning horizontal rotating shaft (7-0) is common on left and right track beginning with left track beginning horizontal rotating shaft (8-0)
Rotation axis (9) center is symmetrical；Track end right support bar foot (5) and track end left support bar foot (6) are separately positioned on rail
In road end support bar foot mobile chute (4), it is provided with the inner edge of track end support bar foot mobile chute (4) for measuring
Right track (7) and the support leg sliding slot instruction angle graduation mark (4-1) of left track (8) opening angle.
2. novel three-dimensional adjustable quantitative according to claim 1 verifies Double cone up rolling condition experiment instrument, it is characterised in that：
The support leg (3) includes beginning fixing supporting legs (3-0), and at beginning, swivel nut one beginning in fixing supporting legs (3-0) upper end moves
Supporting rod up and down adjustment is spiral (3-4), and beginning movement branch is supported in spiral (3-4) upper end of beginning movement supporting rod up and down adjustment
Strut turns foot (3-1), and beginning movement supporting rod turns foot (3-1) and supports beginning movement supporting rod (3-3), moves and support at beginning
Bar (3-3) upper end is provided with rotary axle box (10).
3. novel three-dimensional adjustable quantitative according to claim 1 verifies Double cone up rolling condition experiment instrument, it is characterised in that：
Right support legs and feet fixed screw (5-0) and a left side are provided with respectively at the branch legs and feet of right support leg (5-1) and left support leg (6-1)
Legs and feet fixed screw (6-0) is supported, right support leg (5-1) and left support leg (6-1) upper end are respectively arranged with above and below right support bar
Adjust spiral (5-2) and left support bar up and down adjustment is spiral (6-2).
4. novel three-dimensional adjustable quantitative according to claim 1 verifies Double cone up rolling condition experiment instrument, it is characterised in that：
In right track end, hollow mobile supporting rod (6-3) upper end of hollow mobile supporting rod (5-3) and left track end is respectively arranged with
Right track square screw support column (5-4) and left track square screw support column (6-4), in right track square screw support column
(5-4) and left track square screw support column (6-4) top is respectively arranged with right track end vertical direction and rotates axis (7-
3) and left track end vertical direction rotates axis (8-3), and right track end vertical direction rotates axis (7-3) and left rail
Road end vertical direction rotate axis (8-3) can respectively along right track end vertical direction rotate axis sliding slot (7-2) and
Left track end vertical direction rotates axis sliding slot (8-2) and slides rotation.
5. novel three-dimensional adjustable quantitative according to claim 1 verifies Double cone up rolling condition experiment instrument, it is characterised in that：
Right track beginning horizontal rotating shaft (7-0) and left track beginning horizontal rotating shaft (8-0) spacing are 2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720761917.2U CN207268908U (en) | 2017-06-28 | 2017-06-28 | Novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720761917.2U CN207268908U (en) | 2017-06-28 | 2017-06-28 | Novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268908U true CN207268908U (en) | 2018-04-24 |
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ID=61960976
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720761917.2U Expired - Fee Related CN207268908U (en) | 2017-06-28 | 2017-06-28 | Novel three-dimensional adjustable quantitative verifies Double cone up rolling condition experiment instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268908U (en) |
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2017
- 2017-06-28 CN CN201720761917.2U patent/CN207268908U/en not_active Expired - Fee Related
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