CN105719541A - Sensor-based kinetics study device - Google Patents

Abstract

The invention provides a sensor-based kinetics study device, belonging to the field of kinetics study. The device has a simple structure and provides a new technical scheme for kinetics study. The multifunctional kinetics study device comprises a force sensor and is characterized in that a probe of the force sensor is connected with a fixing plate; the fixing plate is connected with an electromagnet; a ball is sucked at the lower end of the electromagnet; the device also comprises a connecting rack; a hammer is hung at the other end of a fine line; the center of mass of a device formed by all the parts below the probe is on a vertical straight line passing through the probe; the center of mass of the ball is on the vertical straight line passing through the probe; the device also comprises a cylinder arranged on the upper surface of an object placing plate and used for receiving the ball; the cylinder is connected with the object placing plate in a detachable manner; an opening for the ball to enter the cylinder is formed above the cylinder; a circular tube shaped cushion cylinder which has uniform thickness and is used for slowing down the falling ball is stuck to the inner surface of the cylinder and is made of elastic materials; and the inner diameter of the cushion cylinder is slightly smaller than the diameter of the ball.

Description

Sensor-based kinetics research device

The application is Application No.: 2015100035289, invention and created name is: multifunction dynamic research device, Shen Please day be: the divisional application of the application for a patent for invention of 2015-01-05.

Technical field

The invention belongs to for dynamics research field.

Background technology

The category of dynamics research includes the relation of power, motion, power and motion.Existing apparatus is the abundantest, but, or The relation between some parameter in kinetics can be studied by new device, new method.

Summary of the invention

The invention provides a kind of new apparatus and method, provide a kind of new technical scheme for research kinetics, this Invention is such that

Multifunction dynamic research device, including: it is that be fixedly installed, for measuring the force transducer of pulling force straight down, It is characterized in that: the probe of force transducer is fixing connects fixed plate, and fixed plate is tabular, and fixed plate place plane is level Face, fixed plate lower surface is fixing connects electric magnet, and electric magnet lower end is adsorbed with a ball for whereabouts, and ball is by soft magnetism Material is made,

Also include the link that vertical direction is arranged, the upper end of link and the fixing connection of fixed plate, the lower end of link Fixing connection shelf, shelf is tabular, and shelf place plane is horizontal plane.

The quality of ball is 50 grams.

The quality of ball is 20 grams.

Also including the connecting rod for bed knife sensor, it is solid that connecting rod is fixedly connected on vertical rack, support bottom and base Fixed connection.

Also including a fine rule, fine rule one end lies in fixed plate, the fine rule other end one weight of pendency.

Its barycenter of the device that below probe, all parts are constituted is positioned at: through the vertical straight line of probe.

The barycenter of ball is positioned at: through the vertical straight line of probe.

Also include one be positioned at shelf upper surface, for accepting the cylinder of ball, cylinder and shelf with detachably Mode connects, and cylinder is arranged over entering the opening of cylinder for ball.

Cylinder inner surface sticks a dsah-pot circular tube shaped, in uniform thickness, that slow down for the ball that causes to fall and break, slow Rush cylinder to be made up of elastomeric material, and the internal diameter of dsah-pot is slightly less than the diameter of ball.

Dsah-pot is made up of sponge.

Described bottom of cylinder be additionally provided with one be easy to disclose ball eject hole.

Described link is by for changing fixed plate and the upper link of shelf spacing, lower link with scalable side Formula is formed by connecting, and upper link is vertically arranged, and lower link is also vertically arranged, and upper link upper end is fixing connects fixed plate, under Link lower end is fixing connects shelf.

Upper link is provided with the high scale for indicating height, and lower link is provided with the lower quarter for marking height Degree, and: when ball is adsorbed in Magnet, the scale concordant with ball bottom horizontal line is as the initial point of scale.Cylinder upper end is opened Also fixing at Tou and connect a taper cone barrel, upper shed that taper cone barrel upper end is provided with circle, that enter for ball, taper cone barrel lower end sets Having the fixing connection in the under shed of circle, the edge of under shed and the edge of cylinder upper end, the diameter of upper shed is slightly larger than ball Diameter.

Upper shed is additionally provided with the impact sheet slowed down for the ball that causes to fall and break, and impact sheet outer ring is circular, the outer ring of impact sheet Connection fixing with upper shed edge, impact sheet is made up of in uniform thickness, laminar, elastomeric material, impacts sheet inner ring and is provided with In the hole of homogeneous radiation shape, hole is centrally located at: the axis of cylinder.

One side of upper link is provided with the groove of vertical direction, is provided with the tooth bar for driving gear in groove； Lower link is provided with a housing, a face of housing be provided with for gear overhanging so that gear and tooth bar engagement elongated hole, It is provided with the side of elongated hole and sets the laminating of reeded side,

Be provided with in the housing of lower link one for the rotating shaft determining pinion rotation axis, this rotating shaft place axis is water Square to,

Be additionally provided with the first regulating wheel, the second regulating wheel in the housing of lower link, the first regulating wheel, the second regulating wheel its Shaft axis is horizontal direction, and this shaft axis is vertical with the shaft axis of gear,

Be additionally provided with: with the first regulating wheel, the transmission band of the second regulating wheel synchronous axial system,

Gear is rotated by actuator drives the first regulating wheel,

Housing is provided with reading opening so that a face of transmission band is visual, in visual range: transmission band place plane is Perpendicular, conveyor belt motion direction is vertical direction；And: lower link speed vertically and transmission band are along vertically side To speed etc. big, reversely,

Reading opening place plane is vertical with elongated hole place plane,

Lower link is provided with the lower scale for marking height, and this scale marks in transmission band, and upper link is arranged There is the high scale for indicating height, and high scale is identical with the scale numerical value that lower scale is marked in scale overlapping region, and: When ball is adsorbed in Magnet, the scale concordant with ball bottom horizontal line is as the initial point of scale.

Device of the present invention, has several functions, measuring method of the present invention, tool in dynamics research field There is the advantage that precision is high, easy to operate.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention one.

Fig. 2 is the partial structurtes schematic diagram of the embodiment of the present invention one.

Fig. 3 is the structural representation of the embodiment of the present invention two.

Fig. 4 is the structural representation of the embodiment of the present invention three.

Fig. 5 is the structural representation of the embodiment of the present invention four.

Fig. 6 is the partial structurtes schematic diagram of the embodiment of the present invention five.

Fig. 7 is the partial structurtes schematic diagram of the embodiment of the present invention five.

Fig. 8 is the partial structurtes schematic diagram of the embodiment of the present invention six.

Fig. 9 is the structural representation of the embodiment of the present invention seven.

Figure 10 is the structural representation of the embodiment of the present invention eight.

Figure 11 is the partial structurtes schematic diagram of the embodiment of the present invention nine.

Figure 12 is the partial structurtes schematic diagram of the embodiment of the present invention nine.

Figure 13 is the partial structurtes schematic diagram of the embodiment of the present invention ten.

Figure 14 is the partial structurtes schematic diagram of the embodiment of the present invention ten.

Figure 15 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 16 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 17 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 18 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 19 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 20 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 21 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

Figure 22 is the partial structurtes schematic diagram of the embodiment of the present invention 11.

In figure: 1-force transducer, 11-pops one's head in, 2-electric magnet, 3-ball, 4-link, 41-fixed plate, 42-shelf, 51-base, 52-support, 53-connecting rod, 61-fine rule, 62-weight, 7-cylinder, 71-dsah-pot, 72-ejects hole, and 43-is upper to be connected Frame, link under 44-, 431-high scale, scale under 441-, 73-taper cone barrel, 731-upper shed, 732-under shed, 74-impacts Sheet, 741-lower sheeting, 81-tooth bar, 82-groove, 91-the first regulating wheel, 92-the second regulating wheel, 93-gear, 94-elongated hole, 95-transmission band, 96-reading opening, 97-actuating device.

Detailed description of the invention

Embodiment one

See accompanying drawing 1, multifunction dynamic research device, including: that be fixedly installed, for measuring pulling force straight down Force transducer 1, is characterized in that: the probe 11 of force transducer 1 is fixing connects fixed plate 41, and fixed plate 41 is in tabular and fixing Plate 41 place plane is horizontal plane, and fixed plate 41 lower surface is fixing connects electric magnet 2, electric magnet 2 lower end be adsorbed with one for The ball 3 fallen, ball 3 is made up of soft magnetic material, also includes the link 4 that vertical direction is arranged, the upper end of link 4 with Fixed plate 41 is fixing to be connected, and the lower end of link 4 is fixing connects shelf 42, shelf 42 in tabular, shelf 42 place Plane is horizontal plane.The quality of ball 3 can be 50 grams.The quality of ball 3 can be 20 grams.

Force transducer 1 belongs to prior art, and force transducer 1 is the instrument that can measure power, and force transducer 1 connects supporting setting The standby related data that can collect, finally shows with the form of F-t image and exerts oneself over time, common force transducer 1 There is such function mostly.Force transducer 1 has a probe 11, to probe 11 applying pressure or pulling force, can cause quick The relevant parameter of sensing unit changes, thus learns the most how power changes.Force transducer 1 of the present invention refers to retouch Paint the force transducer 1 of F-t image.

Soft magnetic material refers to: in the presence of external magnetic field, and soft magnetic material has magnetic, after external magnetic field removes, and soft magnetism Property magnetism of material disappear.Such as: ferrum.Various equivalent modifications should be known: has allowed slightly remanent magnetism, and has selected remanent magnetism few Material can reduce error.

A kind of method measuring gravity acceleration, it is characterised in that: described method is applied to a kind of multifunction dynamic research Device, described device, including: that be fixedly installed, for measuring the force transducer 1 of pulling force straight down, and: force transducer 1 Probe 11 is fixing connects fixed plate 41, and fixed plate 41 is in tabular, and fixed plate 41 place plane is horizontal plane, fixed plate 41 times Surface is fixing connects electric magnet 2, and electric magnet 2 lower end is adsorbed with a ball 3 for whereabouts, and ball 3 is by soft magnetic material system Become, also include the link 4 that vertical direction is arranged, the upper end of link 4 and the fixing connection of fixed plate 41, the lower end of link 4 Fixing connection shelf 42, shelf 42 is in tabular, and shelf 42 place plane is horizontal plane,

Described method includes:

The first step, is energized to electric magnet 2, adsorbs ball 3, and keeps ball 3 static, measures the height of ball 3 freely falling body Degree is h；Force transducer 1 starts to gather the data of pulling force suffered by it, and now pulling force suffered by sensor is a；

Second step, electric magnet 2 power-off, ball 3 falls；Suffered by sensor, pulling force is become b from a, now engraves as t₁；

3rd step, ball 3 hits shelf 42, and pulling force suffered by sensor is become c from b, now engraves as t₂；

4th step, using h as the height of freely falling body, calculates t₂-t₁=t, with t as the time of freely falling body, utilizes:

$h=\frac{1}{2}{\mathrm{gt}}^2$

Calculate the numerical value of acceleration of gravity.

Various equivalent modifications should be known: the corollary equipment of force transducer 1 and force transducer 1 will be connected to one Rising, and have relevant setting to gathering data, can arrange frequency acquisition is collection per second 500 times, or 600 times, or 1000 times.

By described above obviously: link 4 can not stop the falling motion of ball 3.Such as use the side of accompanying drawing 2 Formula.

The technical scheme optimized is: electric magnet 2 uses remote control electric magnet 2, so, does not just have the outstanding pendant of electric wire of electric magnet 2, Because electric wire hangs pendant, waves the precision influencing whether experiment.

How bed knife sensor 1？Refer to accompanying drawing 3, namely embodiment two:

Also including the connecting rod 53 for bed knife sensor 1, connecting rod 53 is fixedly connected on vertical rack 52, support 52 bottom Connection fixing with base 51.It is also evident from: there is no other object support under shelf 42, say, that shelf Under 42 unsettled, shelf 42 is unsettled in other words.

Embodiment three

See accompanying drawing 4, also include that a fine rule 61, fine rule 61 one end lie in fixed plate 41, fine rule 61 other end pendency one Individual weight 62.

Fine rule 61 and weight 62 may be used to determine the most vertical, because ball of the present invention 3 freely falling body to be done Motion, so, appointment position (such as hitting shelf 42) can be hit in order to ensure ball 3 drop point, utilize fine rule 61 and weight 62 are conducive to determining vertical direction.

Force transducer 1 can the size of correct measurement power, power to be guaranteed the most just can accurately measure, than As, for measuring the force transducer 1 of pulling force, applying the pulling force of 10N along 11 directions of popping one's head in, being shown as 10N, if applied sideling 10N pulling force, the result demonstrated is not the most 10N.In order to allow probe 11 accurate acquisition vertical directions pulling force, the present invention can be with this Sample optimisation technique scheme: its barycenter of device that below probe 11, all parts are constituted is positioned at: through the vertical straight line of probe 11.

The technique effect that weight 62 can reach except determining vertical direction, an also technique effect: be used for adjust matter The position of the heart, makes that " below probe 11, its barycenter of device of being constituted of all parts is positioned at: through the vertical straight line of probe 11." why Adjust？Change the quality (the suspension point position of fine rule 61 can also be changed) of weight 62, it is possible to change centroid position.

Ball 3 adsorbs when electric magnet 2, and the device that below probe 11, all parts are constituted has a barycenter, and ball 3 falls After Xia, the device that below probe 11, all parts are constituted has another barycenter, so, in order to improve certainty of measurement, the present invention Can such optimisation technique scheme: the barycenter of ball 3 is positioned at: through the vertical straight line of probe 11.Such optimization, can make circle Ball 3 guarantees to the last current state of dropping process before falling always: " its barycenter position of device that all parts below 11 of popping one's head in are constituted In: through the vertical straight line of probe 11.”

Embodiment four

See accompanying drawing 5, lose to not allow the ball 3 fallen disorderly roll, can so optimize: also include a position In shelf 42 upper surface, for accepting the cylinder 7 of ball 3, cylinder 7 and shelf 42 removably connect, cylinder 7 It is arranged over entering the opening of cylinder 7 for ball 3.

Cylinder 7 and shelf 42 removably connect, and belong to various equivalent modifications and just may be used by conventional means With realize, such as: the fixing screw rod connecting a vertical direction bottom cylinder 7, shelf 42 is provided with one allows screw rod pass through Hole, utilize nut screw connection screw rod cylinder 7 can be fixed on shelf 42.For another example: what shelf 42 was provided with allows screw rod lead to The hole crossed, its aperture is slightly larger than screw diameter, so can adjust the position of cylinder 7 in little scope.These are all conventional skills Art means, do not describe in detail.

Cylinder 7 also has an effect: cylinder 7 allows ball 3 only move at vertical direction.Cylinder 7 also has an effect: guarantee Ball 3 and force transducer 1 described device below 11 of popping one's head in constitutes an entirety that can be considered system-----because ball 3 will not Roll down on the ground.

There is the optimization of embodiment four, can be not only used for measuring acceleration of gravity, it is also possible under checking inotropic action Momentum theorem.Momentum theorem is to set up under constant force effect, and this is easily by experimental verification, but, under inotropic action, Momentum theorem is also set up？-----this be easily detected by experiment prove.This device may be used for verifying under inotropic action dynamic Amount theorem is still set up.Method has multiple:

A kind of verify the method for momentum theorem under inotropic action, it is characterised in that: described method is applied to a kind of multi-functional Kinetics research device, described device, including: that be fixedly installed, for measuring the force transducer 1 of pulling force straight down, and: power The probe 11 of sensor 1 is fixing connects fixed plate 41, and fixed plate 41 is in tabular, and fixed plate 41 place plane is horizontal plane, Fixed plate 41 lower surface is fixing connects electric magnet 2, and electric magnet 2 lower end is adsorbed with a ball 3 for whereabouts, and ball 3 is by soft Magnetic material is made, and also includes the link 4 that vertical direction is arranged, the upper end of link 4 and the fixing connection of fixed plate 41, connects The lower end of frame 4 is fixing connects shelf 42, and shelf 42 is in tabular, and shelf 42 place plane is horizontal plane,

Also include one be positioned at shelf 42 upper surface, for accept the cylinder 7 of ball 3, cylinder 7 and shelf 42 with Removably connects, and cylinder 7 is arranged over entering the opening of cylinder 7 for ball 3,

Described method includes:

The first step, is energized to electric magnet 2, adsorbs ball 3, and keeps ball 3 static, measures ball 3 least significant end to freedom The height of falling bodies process end point is difference h；Force transducer 1 starts to gather the data of pulling force suffered by it, now pulling force suffered by sensor For a；

Second step, electric magnet 2 power-off, ball 3 falls；Suffered by sensor, pulling force is become b from a, now engraves as t₁；

3rd step, ball 3 is at freely falling body end point, and pulling force suffered by sensor is become c from b, now engraves as t₂；4th Step, ball 3 is from t₃Moment rises static, and suffered by sensor, pulling force reverts to a；

5th step, searches handbook, it is thus achieved that the acceleration of gravity numerical value of test site is g, using h as the height of freely falling body Degree, by formula

$v=\sqrt{2gh}$

Calculate the speed v of freely falling body last current state；

6th step, with t₂For the initial time of research process, with t₄(t₄≥t₃) be last moment of research process, then, initial The speed of moment ball 3 is v, and the speed of end moment ball 3 is 0, and research process is lasted for t₅=t₄-t₂；7th step, t₅Time In, the momentum of gravity suffered by ball 3 is I_G=(a-b) t₅；

8th step, in F-t image, t₅In time, area folded by image and time shaft is S₁, b is multiplied by t₅For S₂, take S= S₁-S₂；

9th step, t₅In time, the momentum of elastic force suffered by ball 3 is I_N, I_NIt is numerically equal to S, in error allowed band In:

If:

$|S-I_G|=\frac{a-b}{g}v,$

Then checking: the momentum theorem under inotropic action is set up.

A kind of verify the method for momentum theorem under inotropic action, it is characterised in that: described method is applied to a kind of multi-functional Kinetics research device, described device, including: that be fixedly installed, for measuring the force transducer 1 of pulling force straight down, and: power The probe 11 of sensor 1 is fixing connects fixed plate 41, and fixed plate 41 is in tabular, and fixed plate 41 place plane is horizontal plane, Fixed plate 41 lower surface is fixing connects electric magnet 2, and electric magnet 2 lower end is adsorbed with a ball 3 for whereabouts, and ball 3 is by soft Magnetic material is made, and also includes the link 4 that vertical direction is arranged, the upper end of link 4 and the fixing connection of fixed plate 41, connects The lower end of frame 4 is fixing connects shelf 42, and shelf 42 is in tabular, and shelf 42 place plane is horizontal plane,

Also include one be positioned at shelf 42 upper surface, for accept the cylinder 7 of ball 3, cylinder 7 and shelf 42 with Removably connects, and cylinder 7 is arranged over entering the opening of cylinder 7 for ball 3,

Described method includes:

The first step, is energized to electric magnet 2, adsorbs ball 3, and keeps ball 3 static；Force transducer 1 starts to gather its institute By the data of pulling force, now pulling force suffered by sensor is a；

Second step, electric magnet 2 power-off, ball 3 falls；Suffered by sensor, pulling force is become b from a, now engraves as t₁；

3rd step, ball 3 is at freely falling body end point, and pulling force suffered by sensor is become c from b, now engraves as t₂；4th Step, ball 3 is from t₃Moment rises static, and suffered by sensor, pulling force reverts to a；

5th step, searches handbook, it is thus achieved that the acceleration of gravity numerical value of test site is g, by formula

V=g (t₂-t₁)

Calculate the speed v of freely falling body last current state；

6th step, with t₂For the initial time of research process, with t₄(t₄≥t₃) be last moment of research process, then, initial The speed of moment ball 3 is v, and the speed of end moment ball 3 is 0, and research process is lasted for t₅=t₄-t₂；7th step, t₅Time In, the momentum of gravity suffered by ball 3 is I_G=(a-b) t₅；

8th step, in F-t image, t₅In time, area folded by image and time shaft is S₁, b is multiplied by t₅For S₂, take S= S₁-S₂；

9th step, t₅In time, the momentum of elastic force suffered by ball 3 is I_N, I_NIt is numerically equal to S, in error allowed band In:

If:

$|S-I_G|=\frac{a-b}{g}v,$

Then checking: the momentum theorem under inotropic action is set up.

A kind of verify the method for momentum theorem under inotropic action, it is characterised in that: described method is applied to a kind of multi-functional Kinetics research device, described device, including: that be fixedly installed, for measuring the force transducer 1 of pulling force straight down, and: power The probe 11 of sensor 1 is fixing connects fixed plate 41, and fixed plate 41 is in tabular, and fixed plate 41 place plane is horizontal plane, Fixed plate 41 lower surface is fixing connects electric magnet 2, and electric magnet 2 lower end is adsorbed with a ball 3 for whereabouts, and ball 3 is by soft Magnetic material is made, and also includes the link 4 that vertical direction is arranged, the upper end of link 4 and the fixing connection of fixed plate 41, connects The lower end of frame 4 is fixing connects shelf 42, and shelf 42 is in tabular, and shelf 42 place plane is horizontal plane,

Also include one be positioned at shelf 42 upper surface, for accept the cylinder 7 of ball 3, cylinder 7 and shelf 42 with Removably connects, and cylinder 7 is arranged over entering the opening of cylinder 7 for ball 3,

Described method includes:

The first step, is energized to electric magnet 2, adsorbs ball 3, and keeps ball 3 static；Force transducer 1 starts to gather its institute By the data of pulling force, now pulling force suffered by sensor is a；

Second step, electric magnet 2 power-off, ball 3 falls；Suffered by sensor, pulling force is become b from a, now engraves as t₁；

3rd step, ball 3 is from t₂Moment rises static, and suffered by sensor, pulling force reverts to a；

4th step, with t₁For the initial time of research process, with t₃(t₃≥t₂) be last moment of research process, then, initial The speed of moment ball 3 is 0, and the speed of end moment ball 3 is also 0, and research process is lasted for t=t₃-t₁；5th step, the t time In, the momentum taking gravity is I_G=at；

6th step, in F-t image, in the t time, area folded by image and time shaft is S；

7th step, in the t time, the momentum of elastic force is I_N, I_NIt is numerically equal to S, in error allowed band:

If: S=I_G, then checking: the momentum theorem under inotropic action is set up.

Although it should be understood that there are multiple t in said method₂But, various equivalent modifications should know difference Indication t in experimental technique₂Implication, will not be t described someway₂With the t described in another kind of method₂Obscure.Namely Saying, those skilled in the art will not propose: " the t described in this specification₂Refer to which moment actually？" such query.Its He the most so explains in the moment.

Embodiment five

Embodiment four has its weak point: 1, it is difficult to ensure that ball 3 is only vertically moving in cylinder 7, and 2, because Ball 3 is the most static through the shortest time in cylinder 7, so, experimental precision is the highest.In order to make ball 3 edge in cylinder 7 Vertical direction motion, and extend ball 3 and the action time of cylinder 7, can so optimize: see accompanying drawing 6.

Cylinder 7 inner surface sticks a dsah-pot circular tube shaped, in uniform thickness, that slow down for the ball 3 that causes to fall and break 71, dsah-pot 71 is made up of elastomeric material, and the internal diameter of dsah-pot 71 is slightly less than the diameter of ball 3.Accompanying drawing 7 is used for illustrating: slow The internal diameter rushing cylinder 71 is slightly less than the diameter of ball 3.Dsah-pot 71 can be made up of sponge.

Such design, can make ball 3 move only along vertical direction, and, extend ball 3 and the work of cylinder 7 Use the time.

" omiting " in the diameter of ball 3 " internal diameter of dsah-pot 71 be slightly less than " is any meaning？Under normal circumstances, " omit " Word belongs to unclear statement, but, after various equivalent modifications has seen this explanation, containing of " omiting " word can be clearly understood from Justice: " omiting ", in this device, is to say, allows ball 3 receive the resistance that dsah-pot 71 applies, and can enter into dsah-pot 71, Being it desired to resistance a little big, the when that just allowing ball 3 enter, dsah-pot 71 is a little tight, if it is desired to resistance is a little bit smaller, slow Rush cylinder 71 with regard to pine a bit.If various equivalent modifications is it is to be understood that dsah-pot 71 internal diameter is much smaller than the diameter of ball 3, circle Ball 3 will be unable to enter dsah-pot 71.In other words: ball 3 enters the process of dsah-pot 71 and squeezes in.Embodiment six

Ball 3 enters cylinder 7 by entering dsah-pot 71, and how that takes out？It is additionally provided with one bottom described cylinder 7 Individual be easy to disclose ball 3 eject hole 72, it is possible to solve this problem, by a thin bar, disclose.Do not describe in detail.

Embodiment seven

See accompanying drawing 9, described link 4 by be used for changing fixed plate 41 and the upper link 43 of shelf 42 spacing, Lower link 44 is telescopically formed by connecting, and upper link 43 is vertically arranged, and lower link 44 is also vertically arranged, upper connection Frame 43 upper end is fixing connects fixed plate 41, and lower link 44 lower end is fixing connects shelf 42.

Adjustment fixing plate 41 and the difference in height of shelf 42, having a variety of mode, regulation shelf 42 position is to hold It is readily conceivable that, but, why the present invention does not adopt in such a way？Reason is: iff by changing shelf It is poor that the position of 42 changes upper-lower height, then, the total height of link 4 is constant, and this makes troubles to packaging, transport.

Scalable mode belongs to prior art.Various equivalent modifications is it is to be understood that upper link of the present invention 43, for determining the locking device of fixed plate 41, shelf 42 height, the most really after lower link 44 is additionally provided with flexible putting in place After having determined collapsing length, connect upper link 43 and lower link 44 with screw rod, to guarantee that this does not changes, if Again to change height, screw rod can be pulled down, then, reset a length, again fix.This technology belongs to existing skill Art.

Embodiment eight

Seeing accompanying drawing 10, upper link 43 is provided with the high scale 431 for indicating height, and lower link 44 is provided with use Mark the lower scale 441 of height, and: when ball 3 is adsorbed in Magnet, the scale conduct concordant with ball 3 bottom horizontal line The initial point of scale.There is scale, facilitated measurement height.If wondering a certain section of height, can comprehensively high scale 431 and lower quarter The registration of degree 441 is learned.

Embodiment nine:

Seeing accompanying drawing 11, also fix and connect a taper cone barrel 73 at cylinder 7 upper end beginning, taper cone barrel 73 upper end is provided with circle , for ball 3 enter upper shed 731, taper cone barrel 73 lower end be provided with circle under shed 732, the edge of under shed 732 and circle The edge of cylinder 7 upper ends is fixing to be connected, and the diameter of upper shed 731 is slightly larger than the diameter of ball 3.So advantage of design is: 1, really Protecting ball 3 and enter cylinder 7,2 along vertical curve, if ball 3 does not has the axis of " aiming " cylinder 7, ball 3 will be unable to enter circle Cylinder 7.See accompanying drawing 12, be used for expressing the shape of taper cone barrel 73.

Embodiment ten

Seeing accompanying drawing 13, upper shed 731 is additionally provided with the impact sheet 74 slowed down for the ball 3 that causes to fall and break, and impacts sheet 74 outer ring For circle, the fixing connection in the outer ring of impact sheet 74 and upper shed 731 edge, impact sheet 74 is by uniform thickness, laminar, elastic Material is made, and impact sheet 74 inner ring is provided with the hole in homogeneous radiation shape, and hole is centrally located at: the axis of cylinder 7.These radiation The hole of shape, defines multiple lower sheeting 741 for applying resistance.Impact sheet 74 can be made with thin steel disc, it is also possible to uses Sheet rubber is made.

So benefit of design is: after ball 3 enters dsah-pot 71, and the resistance deficient change being subject to is enough big, (it practice, The resistance that ball 3 is subject in dsah-pot 71 has fluctuation, and the even direction of resistance can also be from becoming vertical straight up Downwards.) in order to make resistance change become apparent from, an impact sheet 74, the resistance of impact sheet 74 applying and dsah-pot 71 can be set The resistance applied is different so that the resistance change that ball 3 is subject to is substantially.

When ball 3 enters impact sheet 74, the downward deformation of lower sheeting 741, various equivalent modifications is it is to be understood that to select Suitably impact sheet 74 size, so that ball 3 can enter cylinder 7, if selecting the impact sheet 74 that area is the least, ball 3 nothing It is internal that method clamp-ons taper cone barrel 73, more cannot be introduced into cylinder 7 internal.

Embodiment 11

Embodiment eight has a deficiency: after adjusting height, it is impossible to directly read height from scale, can only: carve in reading A part for degree 431, then read a part for lower scale 441, then, it is calculated difference in height.This brings inconvenience to reading.If If designing one: after Shen Suo, the retractor device of scale reading inconvenience, it is possible to solve this problem.

Accompanying drawing 15 is exactly such a device, and Figure 15 is the structural representation of this device.After this device is flexible, reading time Wait, it is not necessary to calculate upper and lower scale.

One side of upper link 43 is provided with the groove 82 of vertical direction, is provided with for driving gear 93 in groove 82 Tooth bar 81；

Lower link 44 is provided with a housing, and a face of housing is provided with for gear 93 overhanging so that gear 93 and tooth bar The elongated hole 94 of 81 engagements, the side being provided with elongated hole 94 and the side laminating being provided with groove 82,

Be provided with in the housing of lower link 44 one for the rotating shaft determining gear 93 pivot center, this rotating shaft place axis For horizontal direction,

First regulating wheel the 91, second regulating wheel 92, the first regulating wheel 91, second it is additionally provided with in the housing of lower link 44 Its shaft axis of regulating wheel 92 is horizontal direction, and this shaft axis is vertical with the shaft axis of gear 93,

Be additionally provided with: with the transmission band 95 of first regulating wheel the 91, second regulating wheel 92 synchronous axial system,

Gear 93 drives the first regulating wheel 91 to rotate by actuating device 97,

Housing is provided with reading opening 96 so that a face of transmission band 95 is visual, in visual range: transmission band 95 place Plane is perpendicular, and transmission band 95 direction of motion is vertical direction；And: lower link 44 speed vertically and transmission It is big, reverse with 95 speed vertically etc.,

Reading opening 96 place plane is vertical with elongated hole 94 place plane,

Lower link 44 is provided with the lower scale 441 for marking height, and this scale marks in transmission band 95, upper connection Frame 43 is provided with the high scale 431 for indicating height, and high scale 431 and lower scale 441 are marked in scale overlapping region Scale numerical value identical, and: when ball 3 is adsorbed in Magnet, former as scale of the scale concordant with ball 3 bottom horizontal line Point.

Figure 16,17 it is partial enlarged drawing.Figure 18,19 being upper link 43, the constitutional diagram of lower link 44, Figure 20 is Figure 19 Partial enlarged drawing.

Explain:

One side of upper link 43 is provided with the groove 82 of vertical direction, is provided with for driving gear 93 in groove 82 Tooth bar 81, it is preferable that: tooth bar 81 is arranged at the bottom surface of groove 82.

It is additionally provided with: with the transmission band 95 of first regulating wheel the 91, second regulating wheel 92 synchronous axial system, so-called synchronous axial system, meaning Think of be say non-slip, say, that the place that transmission band 95 contacts with regulating wheel, have identical linear velocity.

Gear 93 drives the first regulating wheel 91 to rotate by actuating device 97, explains: 1, that is allow the first regulating wheel 91 As drivewheel, allow the second regulating wheel 92 as driven pulley, 2, allow gear 93 rotate, drive regulating wheel, so that transmission band 95 Motion is got up, and this not only belongs to prior art, still belongs to the technical scheme that those of ordinary skill is just known.

Housing is provided with reading opening 96 so that a face of transmission band 95 is visual, explains: without reading opening 96, shell Body will shelter from transmission band 95.Transmission band 95 can be arranged on enclosure interior, it is also possible to spills housing at reading opening 96. One trough can also be set, allow transmission band 95 be stuck in inside trough and move.In other words: all right: housing arranges and is used for about Shu Chuandong carries 95, makes transmission band 95 keep conplane draw-in groove.

In visual range: transmission band 95 place plane is perpendicular, and transmission band 95 direction of motion is vertical direction；Solve Releasing: in not visible scope, transmission band 95 place plane can not be perpendicular, such as in order to allow transmission band 95 stagger gear 93, can be added some and rotate wheel.So emphasizing: " in visual range ".

Lower link 44 speed vertically is big, reverse with transmission band 95 speed vertically etc., explains: under Link 44 up moves x centimetre, and the transmission band 95 in visual range will down move x centimetre.Although this belongs to function Property statement, but, such design belongs to those skilled in the art and need not what creative work just can complete, if setting Certain gear ratio, it is possible to obtain such technique effect.

Lower link 44 is provided with the lower scale 441 for marking height, and this scale marks in transmission band 95, upper connection Frame 43 is provided with the high scale 431 for indicating height, and high scale 431 and lower scale 441 are marked in scale overlapping region Scale numerical value identical, and: when ball 3 is adsorbed in Magnet, former as scale of the scale concordant with ball 3 bottom horizontal line Point.Explain: see accompanying drawing 21,22, the two accompanying drawing, be two diverse locations of lower link 44, such as, Figure 21, lower connection The scale 10 of frame 44 and the scale 10 of upper link 43 align, and the scale 15 of lower link 44 and the scale 15 of upper link 43 are right Together；After lower link 44 up moves one end distance, transmission band 95 synchronizes down to move so that scale still overlaps: see Figure 22, The scale 10 of lower link 44 and the scale 10 of upper link 43 still align, the scale 15 of lower link 44 and upper link 43 Scale 15 still align.So there is no need to just to directly obtain altitude reading by calculating.

Various equivalent modifications is it is to be understood that upper link 43 of the present invention, lower link 44 can also be arranged For determining the locking device of fixed plate 41, shelf 42 height after having flexible putting in place, it may also be said to: upper link 43, lower company Connect frame 44 to be additionally provided with for locking upper link 43, lower link 44, so that upper link 43, lower link 44 are formed fixing The locking device connected, after such as determining collapsing length, connects upper link 43 and lower link 44 with screw rod, to guarantee This does not changes, if again to change height, can pull down screw rod, then, reset a length, again solid Fixed.The device of locking telescopic mounting belongs to routine techniques means, so not writing in this patent scope of protection, cans be compared to Housing also has screw rod to fix a lot of device, and these screw rods also need not write in patent scope of protection.Locking device is permissible It is such that link 43 and offers two strip holes, separation groove 82 both sides, the two strip hole, and the two strip hole The most vertically offer, lower link 44 offer multiple corresponding with strip hole, for the screw hole through screw rod, fixing When, screw rod through screw hole and strip hole, then, use nut screwing clamping.

Various equivalent modifications is it is to be understood that in order to ensure the when of flexible, always change indentation along vertical direction Or elongation, it is also possible to chute is set, preferably dovetail groove, is additionally provided with the draw runner coordinated with chute.Chute and draw runner are along Vertical direction is arranged.This is routine techniques means, does not describes in detail.

Various equivalent modifications is it is to be understood that transmission band 95 to use the smaller transmission band 95 of tensile deformation as far as possible Make, because scale is labeled in transmission band 95, if tensile deformation is bigger, then, scale will be inaccurate.Can so subtract Little error: 1, regulating wheel use gear type regulating wheel, transmission band 95 uses the transmission band 95 with perforation, like common voluntarily The gear of car and chain.Such design, not only ensure that synchronization, it is also possible to make tensile deformation the least.2, on transmission band 95 Before mark scale, just in view of the elongation effect of transmission band 95, such as, the scale of 1cm, the when of mark, marking path is 0.8cm, when, after stretching, the distance between the two scale is exactly 1cm.

Device described in embodiment four to embodiment 11, all can be as measuring under acceleration of gravity, checking inotropic action The device of momentum theorem.It is to say, the method for measurement acceleration of gravity of the present invention can be with any one embodiment institute The device of statement, the method for momentum theorem under checking inotropic action of the present invention, embodiment four can be used to embodiment Device described in 11 any one embodiment.

Each embodiment described in this specification can reasonably be applied in combination.Measurement acceleration of gravity of the present invention Measuring method, gained acceleration of gravity relative error momentum under 0.1%---0.2%, described checking inotropic action is fixed The method of reason, the momentum of gravity and the difference of the momentum of elastic force, compare the momentum of elastic force, relative error is between 0.1%--- 0.2%.There is the advantage that precision is high.

Device of the present invention, has several functions, measuring method of the present invention, tool in dynamics research field There is precision high, easy to operate.

Claims (1)

1. multifunction dynamic research device, including: that be fixedly installed, for measuring the force transducer of pulling force straight down, its Feature is: the probe of force transducer is fixing connects fixed plate, and fixed plate is tabular, and fixed plate place plane is horizontal plane, Fixed plate lower surface is fixing connects electric magnet, and electric magnet lower end is adsorbed with a ball for whereabouts, and ball is by soft magnetism material Material is made,

Also including the link that vertical direction is arranged, the upper end of link and the fixing connection of fixed plate, the lower end of link is fixed Connecting shelf, shelf is tabular, and shelf place plane is horizontal plane,

Also including the connecting rod for bed knife sensor, it is fixing even that connecting rod is fixedly connected on vertical rack, support bottom and base Connect,

Also including a fine rule, fine rule one end lies in fixed plate, the fine rule other end one weight of pendency, all parts below probe Its barycenter of the device constituted is positioned at: through the vertical straight line of probe, the barycenter of ball is positioned at: through the vertical straight line of probe,

Described link changes fixed plate and the upper link of shelf spacing, lower link telescopically connect by being used for Connecing and form, upper link is vertically arranged, and lower link is also vertically arranged, and upper link upper end is fixing connects fixed plate, lower connection Frame lower end is fixing connects shelf,

Upper link is provided with the high scale for indicating height, and lower link is provided with the lower scale for marking height, and: When ball is adsorbed in Magnet, the scale concordant with ball bottom horizontal line as the initial point of scale,

One side of upper link is provided with the groove of vertical direction, is provided with the tooth bar for driving gear in groove；

Lower link is provided with a housing, a face of housing be provided with for gear overhanging so that gear and tooth bar engagement prolong Stretch hole, be provided with the side of elongated hole and set the laminating of reeded side, being provided with one in the housing of lower link for determining tooth The rotating shaft of wheel shaft line, this rotating shaft place axis is horizontal direction,

The first regulating wheel, the second regulating wheel, the first regulating wheel, its rotating shaft of the second regulating wheel it is additionally provided with in the housing of lower link Axis is horizontal direction, and this shaft axis is vertical with the shaft axis of gear,

Be additionally provided with: with the first regulating wheel, the transmission band of the second regulating wheel synchronous axial system,

Gear is rotated by actuator drives the first regulating wheel,

Housing is provided with reading opening so that a face of transmission band is visual, in visual range: transmission band place plane is vertical Plane, conveyor belt motion direction is vertical direction；And: lower link speed vertically and transmission band are vertically Speed etc. are big, reverse,

Reading opening place plane is vertical with elongated hole place plane,

Lower link is provided with the lower scale for marking height, and this scale marks in transmission band, and upper link is provided with use Indicate the high scale of height, and high scale is identical with the scale numerical value that lower scale is marked in scale overlapping region, and: ball When being adsorbed in Magnet, the scale concordant with ball bottom horizontal line as the initial point of scale,

Also include one be positioned at shelf upper surface, for accepting the cylinder of ball, cylinder and shelf removably Connecting, cylinder is arranged over entering the opening of cylinder for ball.